11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * fs/nfs/nfs4xdr.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side XDR for NFSv4. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2002 The Regents of the University of Michigan. 71da177e4SLinus Torvalds * All rights reserved. 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Kendrick Smith <kmsmith@umich.edu> 101da177e4SLinus Torvalds * Andy Adamson <andros@umich.edu> 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4SLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4SLinus Torvalds * are met: 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * 1. Redistributions of source code must retain the above copyright 171da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer. 181da177e4SLinus Torvalds * 2. Redistributions in binary form must reproduce the above copyright 191da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer in the 201da177e4SLinus Torvalds * documentation and/or other materials provided with the distribution. 211da177e4SLinus Torvalds * 3. Neither the name of the University nor the names of its 221da177e4SLinus Torvalds * contributors may be used to endorse or promote products derived 231da177e4SLinus Torvalds * from this software without specific prior written permission. 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 261da177e4SLinus Torvalds * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 271da177e4SLinus Torvalds * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 281da177e4SLinus Torvalds * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291da177e4SLinus Torvalds * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 301da177e4SLinus Torvalds * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 311da177e4SLinus Torvalds * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 321da177e4SLinus Torvalds * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 331da177e4SLinus Torvalds * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 341da177e4SLinus Torvalds * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 351da177e4SLinus Torvalds * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361da177e4SLinus Torvalds */ 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #include <linux/param.h> 391da177e4SLinus Torvalds #include <linux/time.h> 401da177e4SLinus Torvalds #include <linux/mm.h> 411da177e4SLinus Torvalds #include <linux/errno.h> 421da177e4SLinus Torvalds #include <linux/string.h> 431da177e4SLinus Torvalds #include <linux/in.h> 441da177e4SLinus Torvalds #include <linux/pagemap.h> 451da177e4SLinus Torvalds #include <linux/proc_fs.h> 461da177e4SLinus Torvalds #include <linux/kdev_t.h> 47db8ac8baSWeston Andros Adamson #include <linux/module.h> 48db8ac8baSWeston Andros Adamson #include <linux/utsname.h> 491da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 502449ea2eSAlexandros Batsakis #include <linux/sunrpc/msg_prot.h> 515a5ea0d4SBryan Schumaker #include <linux/sunrpc/gss_api.h> 521da177e4SLinus Torvalds #include <linux/nfs.h> 531da177e4SLinus Torvalds #include <linux/nfs4.h> 541da177e4SLinus Torvalds #include <linux/nfs_fs.h> 55dff25ddbSAndreas Gruenbacher #include <linux/fs_struct.h> 56f092075dSChuck Lever 574ce79717STrond Myklebust #include "nfs4_fs.h" 584882ef72SAlexandros Batsakis #include "internal.h" 5940c64c26SAnna Schumaker #include "nfs4idmap.h" 6076e697baSTrond Myklebust #include "nfs4session.h" 61b1f69b75SAndy Adamson #include "pnfs.h" 62f092075dSChuck Lever #include "netns.h" 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 671da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 681da177e4SLinus Torvalds 690a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 701da177e4SLinus Torvalds 711da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 721da177e4SLinus Torvalds #ifdef DEBUG 731da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 741da177e4SLinus Torvalds #else 751da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 761da177e4SLinus Torvalds #endif 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds /* lock,open owner id: 799f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 801da177e4SLinus Torvalds */ 8195b72eb0STrond Myklebust #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) 82d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 1 + 4) 839104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 841da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 851da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 861da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 871da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 889104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 899104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 909104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 919104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 921da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 931da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 941da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 951da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 961da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 971da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 981da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 991da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 100e5012d1fSAndy Adamson #define nfs4_fattr_bitmap_maxsz 4 10196928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 10236b3743fSTrond Myklebust #define nfstime4_maxsz (3) 1031da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 1041da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 105bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 106bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 107aa9c2669SDavid Quigley #ifdef CONFIG_NFS_V4_SECURITY_LABEL 108aa9c2669SDavid Quigley /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */ 109aa9c2669SDavid Quigley #define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN)) 110aa9c2669SDavid Quigley #else 111aa9c2669SDavid Quigley #define nfs4_label_maxsz 0 112aa9c2669SDavid Quigley #endif 11388034c3dSAndy Adamson /* We support only one layout type per file system */ 11488034c3dSAndy Adamson #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8) 11596928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 11696928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 11736b3743fSTrond Myklebust 3*nfstime4_maxsz + \ 11836b3743fSTrond Myklebust nfs4_owner_maxsz + \ 119aa9c2669SDavid Quigley nfs4_group_maxsz + nfs4_label_maxsz + \ 120aa9c2669SDavid Quigley decode_mdsthreshold_maxsz)) 12196928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 12296928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 12396928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1249104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1259104a55dSTrond Myklebust 1 + 2 + 1 + \ 1269104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1279104a55dSTrond Myklebust nfs4_group_maxsz + \ 128aa9c2669SDavid Quigley nfs4_label_maxsz + \ 12936b3743fSTrond Myklebust 1 + nfstime4_maxsz + \ 13036b3743fSTrond Myklebust 1 + nfstime4_maxsz) 1311da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1321da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 13356ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 13456ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1352f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 136dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 137dae100c2SFred Isaman * layout types will be returned. 138dae100c2SFred Isaman */ 139dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 140dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1411da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1421da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1431da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1441da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 145cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 146b8fb2f59SJeff Layton /* client name */ \ 147b8fb2f59SJeff Layton 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 148cc38bac3SChuck Lever 1 /* sc_prog */ + \ 1496dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1506dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 151cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1521da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1531da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1546dd3436bSChuck Lever 2 /* clientid */ + \ 1556dd3436bSChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 1566dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1576dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN)) 1581da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1591da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1601da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1611da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1621da177e4SLinus Torvalds (op_decode_hdr_maxsz) 163e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 164e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1655b5faaf6SJeff Layton #define encode_lookupp_maxsz (op_encode_hdr_maxsz) 1665b5faaf6SJeff Layton #define decode_lookupp_maxsz (op_decode_hdr_maxsz) 1672cebf828STrond Myklebust #define encode_share_access_maxsz \ 1682cebf828STrond Myklebust (2) 1694882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1702cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1712cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1722cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1732cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1742cebf828STrond Myklebust open_owner_id_maxsz + \ 1752cebf828STrond Myklebust encode_opentype_maxsz + \ 1762cebf828STrond Myklebust encode_claim_null_maxsz) 1775a1f6d9eSTrond Myklebust #define decode_space_limit_maxsz (3) 1782cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1799104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1805a1f6d9eSTrond Myklebust decode_space_limit_maxsz + \ 1812cebf828STrond Myklebust decode_ace_maxsz) 1822cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1832cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1849104a55dSTrond Myklebust decode_stateid_maxsz + \ 1852cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1862cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1872cebf828STrond Myklebust decode_delegation_maxsz) 1889104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1899104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1909104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1919104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1929104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1939104a55dSTrond Myklebust decode_stateid_maxsz) 1949104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1959104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1969104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1979104a55dSTrond Myklebust encode_share_access_maxsz) 1989104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1999104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 2009104a55dSTrond Myklebust decode_stateid_maxsz) 2019104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 2029104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 2039104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 2049104a55dSTrond Myklebust decode_stateid_maxsz) 2059104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 2069104a55dSTrond Myklebust encode_stateid_maxsz + \ 2079104a55dSTrond Myklebust encode_attrs_maxsz) 2089104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 2099104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 2109104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 2119104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2129104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 2139104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 214aa9c2669SDavid Quigley 2 + encode_verifier_maxsz + 5 + \ 215aa9c2669SDavid Quigley nfs4_label_maxsz) 2169104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 217a7697f6fSChuck Lever decode_verifier_maxsz) 2189104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 2199104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 2209104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 2219104a55dSTrond Myklebust encode_stateid_maxsz + 4) 2229104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2239104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 2249104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 2259104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2269104a55dSTrond Myklebust decode_verifier_maxsz) 2271da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2281da177e4SLinus Torvalds nfs4_name_maxsz) 2296ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2306ce18391SBenny Halevy decode_change_info_maxsz) 2311da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2321da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2336ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2346ce18391SBenny Halevy decode_change_info_maxsz + \ 2356ce18391SBenny Halevy decode_change_info_maxsz) 2361da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2371da177e4SLinus Torvalds nfs4_name_maxsz) 2386ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 239daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2409104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2419104a55dSTrond Myklebust 7 + \ 242daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 243daccbdedSTrond Myklebust encode_lockowner_maxsz) 2449104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2459104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2469104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2479104a55dSTrond Myklebust decode_lock_denied_maxsz) 248daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 249daccbdedSTrond Myklebust encode_lockowner_maxsz) 2509104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2519104a55dSTrond Myklebust decode_lock_denied_maxsz) 2529104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2539104a55dSTrond Myklebust encode_stateid_maxsz + \ 2549104a55dSTrond Myklebust 4) 2559104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2569104a55dSTrond Myklebust decode_stateid_maxsz) 257d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 258d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 259d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 260d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 261d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2629104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2639104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2641da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2651da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 26694a6d753SChuck Lever 1 + \ 26796928206SJ. Bruce Fields nfs4_fattr_maxsz) 2681da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2691da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2709104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2719104a55dSTrond Myklebust encode_attrs_maxsz) 2722cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2732cebf828STrond Myklebust decode_change_info_maxsz + \ 2742cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2759104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2769104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2771da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2781da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2799104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2809104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2819104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2829104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2839104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2849104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 285e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 286e6889620STrond Myklebust (encode_getattr_maxsz) 287e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 288e6889620STrond Myklebust (0) 2895a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2901650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2919b7b9fccSAndy Adamson 2929b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 293fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 294d751f748SJim Rees #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \ 295d751f748SJim Rees sizeof(utsname()->version) + sizeof(utsname()->machine) + 8) 296fc931582SAndy Adamson 29799fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 29899fe60d0SBenny Halevy encode_verifier_maxsz + \ 29999fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 300b8fb2f59SJeff Layton /* eia_clientowner */ \ 301b8fb2f59SJeff Layton 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 30299fe60d0SBenny Halevy 1 /* flags */ + \ 30399fe60d0SBenny Halevy 1 /* spa_how */ + \ 3042031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 3052031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 3062031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 307db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 308db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 309db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 310db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 311d751f748SJim Rees XDR_QUADLEN(IMPL_NAME_LIMIT) + \ 312db8ac8baSWeston Andros Adamson 3 /* nii_date */) 31399fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 31499fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 31599fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 31699fe60d0SBenny Halevy 1 /* eir_flags */ + \ 31799fe60d0SBenny Halevy 1 /* spr_how */ + \ 3182031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 3192031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 3202031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 32199fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 32299fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 32399fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 32499fe60d0SBenny Halevy /* eir_server_scope<> */ \ 32599fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 32699fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 3277d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 3287d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3297d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 3307d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3317d2ed9acSWeston Andros Adamson 3 /* nii_date */) 332fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 333fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 334fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 335fc931582SAndy Adamson 1 /* ca_rdma_ird */) 336fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 337fc931582SAndy Adamson 2 /* csa_clientid */ + \ 338fc931582SAndy Adamson 1 /* csa_sequence */ + \ 339fc931582SAndy Adamson 1 /* csa_flags */ + \ 340fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 341fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 342fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 343fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 344fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 345fc931582SAndy Adamson 1 /* stamp */ + \ 346fc931582SAndy Adamson 1 /* machinename.len */ + \ 347fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 348fc931582SAndy Adamson 1 /* uid */ + \ 349fc931582SAndy Adamson 1 /* gid */ + \ 350fc931582SAndy Adamson 1 /* gids.len (0) */) 351fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 352fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 353fc931582SAndy Adamson 1 /* csr_sequence */ + \ 354fc931582SAndy Adamson 1 /* csr_flags */ + \ 355fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 356fc931582SAndy Adamson decode_channel_attrs_maxsz) 3577c44f1aeSWeston Andros Adamson #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ 3587c44f1aeSWeston Andros Adamson /* bctsa_sessid */ \ 3597c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3607c44f1aeSWeston Andros Adamson 1 /* bctsa_dir */ + \ 3617c44f1aeSWeston Andros Adamson 1 /* bctsa_use_conn_in_rdma_mode */) 3627c44f1aeSWeston Andros Adamson #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ 3637c44f1aeSWeston Andros Adamson /* bctsr_sessid */ \ 3647c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3657c44f1aeSWeston Andros Adamson 1 /* bctsr_dir */ + \ 3667c44f1aeSWeston Andros Adamson 1 /* bctsr_use_conn_in_rdma_mode */) 3670f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3680f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 36966245539STrond Myklebust #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) 37066245539STrond Myklebust #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) 371fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 372fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 373fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 374fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 37518019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 37618019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 37784c9dee3SChristoph Hellwig #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + \ 37884c9dee3SChristoph Hellwig XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \ 37984c9dee3SChristoph Hellwig 1 /* layout type */ + \ 38084c9dee3SChristoph Hellwig 1 /* maxcount */ + \ 38184c9dee3SChristoph Hellwig 1 /* bitmap size */ + \ 38284c9dee3SChristoph Hellwig 1 /* notification bitmap length */ + \ 38384c9dee3SChristoph Hellwig 1 /* notification bitmap, word 0 */) 384b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 385b1f69b75SAndy Adamson 1 /* layout type */ + \ 386b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 387b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 388b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 38984c9dee3SChristoph Hellwig 1 /* notification bitmap, word 0 */) 390b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 391b1f69b75SAndy Adamson encode_stateid_maxsz) 392b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 393b1f69b75SAndy Adamson decode_stateid_maxsz + \ 394b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 395863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 396863a3c6cSAndy Adamson 2 /* offset */ + \ 397863a3c6cSAndy Adamson 2 /* length */ + \ 398863a3c6cSAndy Adamson 1 /* reclaim */ + \ 399863a3c6cSAndy Adamson encode_stateid_maxsz + \ 400863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 401863a3c6cSAndy Adamson 2 /* last byte written */ + \ 402863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 403863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 4045f919c9fSChristoph Hellwig 1 /* layoutupdate4 opaqueue len */) 4055f919c9fSChristoph Hellwig /* the actual content of layoutupdate4 should 4065f919c9fSChristoph Hellwig be allocated by drivers and spliced in 4075f919c9fSChristoph Hellwig using xdr_write_pages */ 408863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 409cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 410cbe82603SBenny Halevy encode_stateid_maxsz + \ 4116669cb8bSTrond Myklebust 1 + \ 4126669cb8bSTrond Myklebust XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) 413cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 414cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 415fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 416fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 4177d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 4187d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4197d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 4209aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 4219aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4229f79fb48SAndy Adamson #define decode_free_stateid_maxsz (op_decode_hdr_maxsz) 4239b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 4249b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 4259b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 426cf805165STrond Myklebust #define encode_layoutreturn_maxsz 0 427cf805165STrond Myklebust #define decode_layoutreturn_maxsz 0 4289b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 4299b7b9fccSAndy Adamson 4301da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 4311da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 4321da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 4339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4341da177e4SLinus Torvalds encode_putfh_maxsz + \ 4359104a55dSTrond Myklebust encode_read_maxsz) 4361da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 4379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4381da177e4SLinus Torvalds decode_putfh_maxsz + \ 4399104a55dSTrond Myklebust decode_read_maxsz) 4401da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 4419b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4421da177e4SLinus Torvalds encode_putfh_maxsz + \ 4439104a55dSTrond Myklebust encode_readlink_maxsz) 4441da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4459b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4461da177e4SLinus Torvalds decode_putfh_maxsz + \ 4479104a55dSTrond Myklebust decode_readlink_maxsz) 4481da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4499b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4501da177e4SLinus Torvalds encode_putfh_maxsz + \ 4519104a55dSTrond Myklebust encode_readdir_maxsz) 4521da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4541da177e4SLinus Torvalds decode_putfh_maxsz + \ 4559104a55dSTrond Myklebust decode_readdir_maxsz) 4561da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4581da177e4SLinus Torvalds encode_putfh_maxsz + \ 4599104a55dSTrond Myklebust encode_write_maxsz + \ 4604f9838c7STrond Myklebust encode_getattr_maxsz) 4611da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4629b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4631da177e4SLinus Torvalds decode_putfh_maxsz + \ 4649104a55dSTrond Myklebust decode_write_maxsz + \ 4654f9838c7STrond Myklebust decode_getattr_maxsz) 4661da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4679b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4681da177e4SLinus Torvalds encode_putfh_maxsz + \ 4698582715eSTrond Myklebust encode_commit_maxsz) 4701da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4719b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4721da177e4SLinus Torvalds decode_putfh_maxsz + \ 4738582715eSTrond Myklebust decode_commit_maxsz) 4741da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4759b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4761da177e4SLinus Torvalds encode_putfh_maxsz + \ 4772cebf828STrond Myklebust encode_open_maxsz + \ 4786168f62cSWeston Andros Adamson encode_access_maxsz + \ 4792cebf828STrond Myklebust encode_getfh_maxsz + \ 4802cebf828STrond Myklebust encode_getattr_maxsz) 4811da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4829b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4831da177e4SLinus Torvalds decode_putfh_maxsz + \ 4842cebf828STrond Myklebust decode_open_maxsz + \ 4856168f62cSWeston Andros Adamson decode_access_maxsz + \ 4862cebf828STrond Myklebust decode_getfh_maxsz + \ 4872cebf828STrond Myklebust decode_getattr_maxsz) 4881da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4891da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4901da177e4SLinus Torvalds encode_putfh_maxsz + \ 4919104a55dSTrond Myklebust encode_open_confirm_maxsz) 4929104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4939104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4941da177e4SLinus Torvalds decode_putfh_maxsz + \ 4959104a55dSTrond Myklebust decode_open_confirm_maxsz) 4961da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4979b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4981da177e4SLinus Torvalds encode_putfh_maxsz + \ 4992cebf828STrond Myklebust encode_open_maxsz + \ 5006168f62cSWeston Andros Adamson encode_access_maxsz + \ 5012cebf828STrond Myklebust encode_getattr_maxsz) 5021da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 5039b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5041da177e4SLinus Torvalds decode_putfh_maxsz + \ 5052cebf828STrond Myklebust decode_open_maxsz + \ 5066168f62cSWeston Andros Adamson decode_access_maxsz + \ 5072cebf828STrond Myklebust decode_getattr_maxsz) 5081da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 5091da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5109b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5111da177e4SLinus Torvalds encode_putfh_maxsz + \ 512b6808145STrond Myklebust encode_layoutreturn_maxsz + \ 5133947b74dSTrond Myklebust encode_open_downgrade_maxsz) 5141da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 5151da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5169b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5171da177e4SLinus Torvalds decode_putfh_maxsz + \ 518b6808145STrond Myklebust decode_layoutreturn_maxsz + \ 5193947b74dSTrond Myklebust decode_open_downgrade_maxsz) 5201da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 5219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5221da177e4SLinus Torvalds encode_putfh_maxsz + \ 523cf805165STrond Myklebust encode_layoutreturn_maxsz + \ 5249104a55dSTrond Myklebust encode_close_maxsz + \ 525516a6af6STrond Myklebust encode_getattr_maxsz) 5261da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 5279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5281da177e4SLinus Torvalds decode_putfh_maxsz + \ 529cf805165STrond Myklebust decode_layoutreturn_maxsz + \ 5309104a55dSTrond Myklebust decode_close_maxsz + \ 531516a6af6STrond Myklebust decode_getattr_maxsz) 5321da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 5339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5341da177e4SLinus Torvalds encode_putfh_maxsz + \ 5359104a55dSTrond Myklebust encode_setattr_maxsz + \ 5361da177e4SLinus Torvalds encode_getattr_maxsz) 5371da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5389b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5391da177e4SLinus Torvalds decode_putfh_maxsz + \ 5409104a55dSTrond Myklebust decode_setattr_maxsz + \ 5419104a55dSTrond Myklebust decode_getattr_maxsz) 5421da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5441da177e4SLinus Torvalds encode_putfh_maxsz + \ 5451da177e4SLinus Torvalds encode_fsinfo_maxsz) 5461da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5479b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5481da177e4SLinus Torvalds decode_putfh_maxsz + \ 5491da177e4SLinus Torvalds decode_fsinfo_maxsz) 5501da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5511da177e4SLinus Torvalds encode_renew_maxsz) 5521da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5531da177e4SLinus Torvalds decode_renew_maxsz) 5541da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5551da177e4SLinus Torvalds encode_setclientid_maxsz) 5561da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5571da177e4SLinus Torvalds decode_setclientid_maxsz) 5581da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5591da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 56083ca7f5aSChuck Lever encode_setclientid_confirm_maxsz) 5611da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5621da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 56383ca7f5aSChuck Lever decode_setclientid_confirm_maxsz) 5641da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5661da177e4SLinus Torvalds encode_putfh_maxsz + \ 5679104a55dSTrond Myklebust encode_lock_maxsz) 5681da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5699b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5701da177e4SLinus Torvalds decode_putfh_maxsz + \ 5719104a55dSTrond Myklebust decode_lock_maxsz) 5721da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5739b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5741da177e4SLinus Torvalds encode_putfh_maxsz + \ 5759104a55dSTrond Myklebust encode_lockt_maxsz) 5769104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5789104a55dSTrond Myklebust decode_putfh_maxsz + \ 5799104a55dSTrond Myklebust decode_lockt_maxsz) 5801da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5821da177e4SLinus Torvalds encode_putfh_maxsz + \ 5839104a55dSTrond Myklebust encode_locku_maxsz) 5841da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5859b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5861da177e4SLinus Torvalds decode_putfh_maxsz + \ 5879104a55dSTrond Myklebust decode_locku_maxsz) 588d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 589d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 590d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 591d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 592d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 593d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5941da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5959b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5961da177e4SLinus Torvalds encode_putfh_maxsz + \ 59776b32999STrond Myklebust encode_access_maxsz + \ 59876b32999STrond Myklebust encode_getattr_maxsz) 5991da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 6009b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6011da177e4SLinus Torvalds decode_putfh_maxsz + \ 60276b32999STrond Myklebust decode_access_maxsz + \ 60376b32999STrond Myklebust decode_getattr_maxsz) 6041da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 6059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6061da177e4SLinus Torvalds encode_putfh_maxsz + \ 60744c99933SChuck Lever encode_getattr_maxsz + \ 60844c99933SChuck Lever encode_renew_maxsz) 6091da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 6109b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6111da177e4SLinus Torvalds decode_putfh_maxsz + \ 61244c99933SChuck Lever decode_getattr_maxsz + \ 61344c99933SChuck Lever decode_renew_maxsz) 6141da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 6159b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6161da177e4SLinus Torvalds encode_putfh_maxsz + \ 6171da177e4SLinus Torvalds encode_lookup_maxsz + \ 6181da177e4SLinus Torvalds encode_getattr_maxsz + \ 6191da177e4SLinus Torvalds encode_getfh_maxsz) 6201da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 6219b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6221da177e4SLinus Torvalds decode_putfh_maxsz + \ 623e6889620STrond Myklebust decode_lookup_maxsz + \ 6241da177e4SLinus Torvalds decode_getattr_maxsz + \ 6251da177e4SLinus Torvalds decode_getfh_maxsz) 6265b5faaf6SJeff Layton #define NFS4_enc_lookupp_sz (compound_encode_hdr_maxsz + \ 6275b5faaf6SJeff Layton encode_sequence_maxsz + \ 6285b5faaf6SJeff Layton encode_putfh_maxsz + \ 6295b5faaf6SJeff Layton encode_lookupp_maxsz + \ 6305b5faaf6SJeff Layton encode_getattr_maxsz + \ 6315b5faaf6SJeff Layton encode_getfh_maxsz) 6325b5faaf6SJeff Layton #define NFS4_dec_lookupp_sz (compound_decode_hdr_maxsz + \ 6335b5faaf6SJeff Layton decode_sequence_maxsz + \ 6345b5faaf6SJeff Layton decode_putfh_maxsz + \ 6355b5faaf6SJeff Layton decode_lookupp_maxsz + \ 6365b5faaf6SJeff Layton decode_getattr_maxsz + \ 6375b5faaf6SJeff Layton decode_getfh_maxsz) 6381da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 6399b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6401da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6411da177e4SLinus Torvalds encode_getattr_maxsz + \ 6421da177e4SLinus Torvalds encode_getfh_maxsz) 6431da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6449b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6451da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6461da177e4SLinus Torvalds decode_getattr_maxsz + \ 6471da177e4SLinus Torvalds decode_getfh_maxsz) 6481da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6499b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6501da177e4SLinus Torvalds encode_putfh_maxsz + \ 651778d2817STrond Myklebust encode_remove_maxsz) 6521da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6541da177e4SLinus Torvalds decode_putfh_maxsz + \ 655778d2817STrond Myklebust decode_remove_maxsz) 6561da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6581da177e4SLinus Torvalds encode_putfh_maxsz + \ 6591da177e4SLinus Torvalds encode_savefh_maxsz + \ 6601da177e4SLinus Torvalds encode_putfh_maxsz + \ 661778d2817STrond Myklebust encode_rename_maxsz) 6621da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6639b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6641da177e4SLinus Torvalds decode_putfh_maxsz + \ 6651da177e4SLinus Torvalds decode_savefh_maxsz + \ 6661da177e4SLinus Torvalds decode_putfh_maxsz + \ 667778d2817STrond Myklebust decode_rename_maxsz) 6681da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6701da177e4SLinus Torvalds encode_putfh_maxsz + \ 6711da177e4SLinus Torvalds encode_savefh_maxsz + \ 6721da177e4SLinus Torvalds encode_putfh_maxsz + \ 67391ba2eeeSTrond Myklebust encode_link_maxsz + \ 67491ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 675a9f6991bSTrond Myklebust encode_getattr_maxsz) 6761da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6781da177e4SLinus Torvalds decode_putfh_maxsz + \ 6791da177e4SLinus Torvalds decode_savefh_maxsz + \ 6801da177e4SLinus Torvalds decode_putfh_maxsz + \ 68191ba2eeeSTrond Myklebust decode_link_maxsz + \ 68291ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 68391ba2eeeSTrond Myklebust decode_getattr_maxsz) 6841da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6859b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6861da177e4SLinus Torvalds encode_putfh_maxsz + \ 6871da177e4SLinus Torvalds encode_symlink_maxsz + \ 6881da177e4SLinus Torvalds encode_getattr_maxsz + \ 6891da177e4SLinus Torvalds encode_getfh_maxsz) 6901da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6919b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6921da177e4SLinus Torvalds decode_putfh_maxsz + \ 6931da177e4SLinus Torvalds decode_symlink_maxsz + \ 6941da177e4SLinus Torvalds decode_getattr_maxsz + \ 6951da177e4SLinus Torvalds decode_getfh_maxsz) 6961da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6979b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6981da177e4SLinus Torvalds encode_putfh_maxsz + \ 6991da177e4SLinus Torvalds encode_create_maxsz + \ 70056ae19f3STrond Myklebust encode_getfh_maxsz + \ 70156ae19f3STrond Myklebust encode_getattr_maxsz) 7021da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 7039b7b9fccSAndy Adamson decode_sequence_maxsz + \ 7041da177e4SLinus Torvalds decode_putfh_maxsz + \ 7051da177e4SLinus Torvalds decode_create_maxsz + \ 70656ae19f3STrond Myklebust decode_getfh_maxsz + \ 70756ae19f3STrond Myklebust decode_getattr_maxsz) 7081da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 7099b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7101da177e4SLinus Torvalds encode_putfh_maxsz + \ 7111da177e4SLinus Torvalds encode_getattr_maxsz) 7121da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 7139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 7141da177e4SLinus Torvalds decode_putfh_maxsz + \ 7151da177e4SLinus Torvalds decode_getattr_maxsz) 7161da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 7179b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7181da177e4SLinus Torvalds encode_putfh_maxsz + \ 7199104a55dSTrond Myklebust encode_statfs_maxsz) 7201da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 7219b7b9fccSAndy Adamson decode_sequence_maxsz + \ 7221da177e4SLinus Torvalds decode_putfh_maxsz + \ 7239104a55dSTrond Myklebust decode_statfs_maxsz) 7241da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 7259b7b9fccSAndy Adamson encode_sequence_maxsz + \ 726ab91f264STrond Myklebust encode_putfh_maxsz + \ 7271da177e4SLinus Torvalds encode_getattr_maxsz) 7281da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 7299b7b9fccSAndy Adamson decode_sequence_maxsz + \ 730ab91f264STrond Myklebust decode_putfh_maxsz + \ 7311da177e4SLinus Torvalds decode_getattr_maxsz) 7321da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 7339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7341da177e4SLinus Torvalds encode_putfh_maxsz + \ 735586f1c39STrond Myklebust encode_layoutreturn_maxsz + \ 736fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 737fa178f29STrond Myklebust encode_getattr_maxsz) 7381da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 7399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 740d8434d4cSTrond Myklebust decode_putfh_maxsz + \ 741586f1c39STrond Myklebust decode_layoutreturn_maxsz + \ 742fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 743fa178f29STrond Myklebust decode_getattr_maxsz) 744029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 746029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7479104a55dSTrond Myklebust encode_getacl_maxsz) 748029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7499b7b9fccSAndy Adamson decode_sequence_maxsz + \ 750029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7519104a55dSTrond Myklebust decode_getacl_maxsz) 75223ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7539b7b9fccSAndy Adamson encode_sequence_maxsz + \ 75423ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7559104a55dSTrond Myklebust encode_setacl_maxsz) 75623ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7579b7b9fccSAndy Adamson decode_sequence_maxsz + \ 75823ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7599104a55dSTrond Myklebust decode_setacl_maxsz) 760683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 761683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7629b7b9fccSAndy Adamson encode_sequence_maxsz + \ 763683b57b4STrond Myklebust encode_putfh_maxsz + \ 764e6889620STrond Myklebust encode_lookup_maxsz + \ 765b03d735bSChuck Lever encode_fs_locations_maxsz + \ 766b03d735bSChuck Lever encode_renew_maxsz) 767683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 768683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7699b7b9fccSAndy Adamson decode_sequence_maxsz + \ 770683b57b4STrond Myklebust decode_putfh_maxsz + \ 771e6889620STrond Myklebust decode_lookup_maxsz + \ 772b03d735bSChuck Lever decode_fs_locations_maxsz + \ 773b03d735bSChuck Lever decode_renew_maxsz) 7745a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7755a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7765a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7775a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7785a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7795a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7805a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7815a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 78244c99933SChuck Lever #define NFS4_enc_fsid_present_sz \ 78344c99933SChuck Lever (compound_encode_hdr_maxsz + \ 78444c99933SChuck Lever encode_sequence_maxsz + \ 78544c99933SChuck Lever encode_putfh_maxsz + \ 78644c99933SChuck Lever encode_getfh_maxsz + \ 78744c99933SChuck Lever encode_renew_maxsz) 78844c99933SChuck Lever #define NFS4_dec_fsid_present_sz \ 78944c99933SChuck Lever (compound_decode_hdr_maxsz + \ 79044c99933SChuck Lever decode_sequence_maxsz + \ 79144c99933SChuck Lever decode_putfh_maxsz + \ 79244c99933SChuck Lever decode_getfh_maxsz + \ 79344c99933SChuck Lever decode_renew_maxsz) 79499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7957c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7967c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7977c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7987c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7997c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 8007c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 80199fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 80299fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 80399fe60d0SBenny Halevy encode_exchange_id_maxsz) 80499fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 80599fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 80699fe60d0SBenny Halevy decode_exchange_id_maxsz) 807fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 808fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 809fc931582SAndy Adamson encode_create_session_maxsz) 810fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 811fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 812fc931582SAndy Adamson decode_create_session_maxsz) 8130f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 8140f3e66c6SAndy Adamson encode_destroy_session_maxsz) 8150f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 8160f3e66c6SAndy Adamson decode_destroy_session_maxsz) 81766245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 81866245539STrond Myklebust encode_destroy_clientid_maxsz) 81966245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 82066245539STrond Myklebust decode_destroy_clientid_maxsz) 821fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 822fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 823fc01cea9SAndy Adamson encode_sequence_maxsz) 824fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 825fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 826fc01cea9SAndy Adamson decode_sequence_maxsz) 8272050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 8282050f0ccSAndy Adamson encode_sequence_maxsz + \ 8292050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 8302050f0ccSAndy Adamson encode_fsinfo_maxsz) 8312050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 8322050f0ccSAndy Adamson decode_sequence_maxsz + \ 8332050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 8342050f0ccSAndy Adamson decode_fsinfo_maxsz) 83518019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 83618019753SRicardo Labiaga encode_sequence_maxsz + \ 83718019753SRicardo Labiaga encode_reclaim_complete_maxsz) 83818019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 83918019753SRicardo Labiaga decode_sequence_maxsz + \ 84018019753SRicardo Labiaga decode_reclaim_complete_maxsz) 841b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 842b1f69b75SAndy Adamson encode_sequence_maxsz +\ 843b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 844b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 845b1f69b75SAndy Adamson decode_sequence_maxsz + \ 846b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 847b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 848b1f69b75SAndy Adamson encode_sequence_maxsz + \ 849b1f69b75SAndy Adamson encode_putfh_maxsz + \ 850b1f69b75SAndy Adamson encode_layoutget_maxsz) 851b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 852b1f69b75SAndy Adamson decode_sequence_maxsz + \ 853b1f69b75SAndy Adamson decode_putfh_maxsz + \ 854b1f69b75SAndy Adamson decode_layoutget_maxsz) 855863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 856863a3c6cSAndy Adamson encode_sequence_maxsz +\ 857863a3c6cSAndy Adamson encode_putfh_maxsz + \ 858863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 859863a3c6cSAndy Adamson encode_getattr_maxsz) 860863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 861863a3c6cSAndy Adamson decode_sequence_maxsz + \ 862863a3c6cSAndy Adamson decode_putfh_maxsz + \ 863863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 864863a3c6cSAndy Adamson decode_getattr_maxsz) 865cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 866cbe82603SBenny Halevy encode_sequence_maxsz + \ 867cbe82603SBenny Halevy encode_putfh_maxsz + \ 868cbe82603SBenny Halevy encode_layoutreturn_maxsz) 869cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 870cbe82603SBenny Halevy decode_sequence_maxsz + \ 871cbe82603SBenny Halevy decode_putfh_maxsz + \ 872cbe82603SBenny Halevy decode_layoutreturn_maxsz) 873fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 874fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 875fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 876fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 877fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 878fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 879fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 880fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8817d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8827d974794SBryan Schumaker encode_sequence_maxsz + \ 8837d974794SBryan Schumaker encode_test_stateid_maxsz) 8847d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8857d974794SBryan Schumaker decode_sequence_maxsz + \ 8867d974794SBryan Schumaker decode_test_stateid_maxsz) 8879aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8889aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8899aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8909aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8919aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8929aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8932449ea2eSAlexandros Batsakis 8942449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8952449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8962449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8972449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8982449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8992449ea2eSAlexandros Batsakis XDR_UNIT); 9002449ea2eSAlexandros Batsakis 9012449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 9022449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 9032449ea2eSAlexandros Batsakis decode_sequence_maxsz + 9042449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 9052449ea2eSAlexandros Batsakis XDR_UNIT); 906f1c097beSAndy Adamson 907f1c097beSAndy Adamson const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH + 908f1c097beSAndy Adamson compound_decode_hdr_maxsz + 909f1c097beSAndy Adamson decode_sequence_maxsz) * 910f1c097beSAndy Adamson XDR_UNIT); 911f1c097beSAndy Adamson EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead); 91299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 9131da177e4SLinus Torvalds 914bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 915bca79478STrond Myklebust [NF4BAD] = 0, 916bca79478STrond Myklebust [NF4REG] = S_IFREG, 917bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 918bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 919bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 920bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 921bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 922bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 923bca79478STrond Myklebust [NF4ATTRDIR] = 0, 924bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 9251da177e4SLinus Torvalds }; 9261da177e4SLinus Torvalds 9271da177e4SLinus Torvalds struct compound_hdr { 9281da177e4SLinus Torvalds int32_t status; 9291da177e4SLinus Torvalds uint32_t nops; 930d017931cSAndy Adamson __be32 * nops_p; 9311da177e4SLinus Torvalds uint32_t taglen; 9321da177e4SLinus Torvalds char * tag; 9330c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 93466cc0429SBenny Halevy u32 minorversion; 9351da177e4SLinus Torvalds }; 9361da177e4SLinus Torvalds 93713c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 93813c65ce9SBenny Halevy { 93913c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 94013c65ce9SBenny Halevy BUG_ON(!p); 94113c65ce9SBenny Halevy return p; 94213c65ce9SBenny Halevy } 9431da177e4SLinus Torvalds 944cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 945cb17e556STrond Myklebust { 946ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0); 947cb17e556STrond Myklebust } 948cb17e556STrond Myklebust 9491da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 9501da177e4SLinus Torvalds { 951ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_opaque(xdr, str, len) < 0); 9521da177e4SLinus Torvalds } 9531da177e4SLinus Torvalds 9544ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9554ade9821STrond Myklebust { 956ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_u32(xdr, n) < 0); 9574ade9821STrond Myklebust } 9584ade9821STrond Myklebust 959ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 960ff2eb681STrond Myklebust { 961ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_u64(xdr, n) < 0); 962ff2eb681STrond Myklebust } 963ff2eb681STrond Myklebust 96437c88763STrond Myklebust static ssize_t xdr_encode_bitmap4(struct xdr_stream *xdr, 96537c88763STrond Myklebust const __u32 *bitmap, size_t len) 96637c88763STrond Myklebust { 96737c88763STrond Myklebust ssize_t ret; 96837c88763STrond Myklebust 96937c88763STrond Myklebust /* Trim empty words */ 97037c88763STrond Myklebust while (len > 0 && bitmap[len-1] == 0) 97137c88763STrond Myklebust len--; 97237c88763STrond Myklebust ret = xdr_stream_encode_uint32_array(xdr, bitmap, len); 97337c88763STrond Myklebust if (WARN_ON_ONCE(ret < 0)) 97437c88763STrond Myklebust return ret; 97537c88763STrond Myklebust return len; 97637c88763STrond Myklebust } 97737c88763STrond Myklebust 97837c88763STrond Myklebust static size_t mask_bitmap4(const __u32 *bitmap, const __u32 *mask, 97937c88763STrond Myklebust __u32 *res, size_t len) 98037c88763STrond Myklebust { 98137c88763STrond Myklebust size_t i; 98237c88763STrond Myklebust __u32 tmp; 98337c88763STrond Myklebust 98437c88763STrond Myklebust while (len > 0 && (bitmap[len-1] == 0 || mask[len-1] == 0)) 98537c88763STrond Myklebust len--; 98637c88763STrond Myklebust for (i = len; i-- > 0;) { 98737c88763STrond Myklebust tmp = bitmap[i] & mask[i]; 98837c88763STrond Myklebust res[i] = tmp; 98937c88763STrond Myklebust } 99037c88763STrond Myklebust return len; 99137c88763STrond Myklebust } 99237c88763STrond Myklebust 9934ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9944ade9821STrond Myklebust const struct nfs_seqid *seqid) 9954ade9821STrond Myklebust { 996a6796419STrond Myklebust if (seqid != NULL) 9974ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 998a6796419STrond Myklebust else 999a6796419STrond Myklebust encode_uint32(xdr, 0); 10004ade9821STrond Myklebust } 10014ade9821STrond Myklebust 10020c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 10030c4e8c18SBenny Halevy struct rpc_rqst *req, 10040c4e8c18SBenny Halevy struct compound_hdr *hdr) 10051da177e4SLinus Torvalds { 10068687b63aSAl Viro __be32 *p; 1007a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 10080c4e8c18SBenny Halevy 10090c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 10100c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 10110c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 10120c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 10131da177e4SLinus Torvalds 10147fc38846STrond Myklebust WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); 10156fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 10166fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 1017e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 1018d017931cSAndy Adamson hdr->nops_p = p; 101934558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 1020d017931cSAndy Adamson } 1021d017931cSAndy Adamson 1022ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 1023ab19b481STrond Myklebust uint32_t replen, 1024ab19b481STrond Myklebust struct compound_hdr *hdr) 1025ab19b481STrond Myklebust { 1026ab19b481STrond Myklebust encode_uint32(xdr, op); 1027ab19b481STrond Myklebust hdr->nops++; 1028ab19b481STrond Myklebust hdr->replen += replen; 1029ab19b481STrond Myklebust } 1030ab19b481STrond Myklebust 1031d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 1032d017931cSAndy Adamson { 10337fc38846STrond Myklebust WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); 1034d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 10351da177e4SLinus Torvalds } 10361da177e4SLinus Torvalds 1037ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1038ea9d23f5STrond Myklebust { 10392d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 1040ea9d23f5STrond Myklebust } 1041ea9d23f5STrond Myklebust 10421da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 10431da177e4SLinus Torvalds { 1044cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 10451da177e4SLinus Torvalds } 10461da177e4SLinus Torvalds 104736b3743fSTrond Myklebust static __be32 * 104836b3743fSTrond Myklebust xdr_encode_nfstime4(__be32 *p, const struct timespec *t) 104936b3743fSTrond Myklebust { 105036b3743fSTrond Myklebust p = xdr_encode_hyper(p, (__s64)t->tv_sec); 105136b3743fSTrond Myklebust *p++ = cpu_to_be32(t->tv_nsec); 105236b3743fSTrond Myklebust return p; 105336b3743fSTrond Myklebust } 105436b3743fSTrond Myklebust 1055aa9c2669SDavid Quigley static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, 1056aa9c2669SDavid Quigley const struct nfs4_label *label, 105728cf22d0STrond Myklebust const umode_t *umask, 10585334c5bdSKinglong Mee const struct nfs_server *server, 105928cf22d0STrond Myklebust const uint32_t attrmask[]) 10601da177e4SLinus Torvalds { 10611da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 10621da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 10631da177e4SLinus Torvalds int owner_namelen = 0; 10641da177e4SLinus Torvalds int owner_grouplen = 0; 10658687b63aSAl Viro __be32 *p; 1066d7067b2dSTrond Myklebust uint32_t len = 0; 1067d7067b2dSTrond Myklebust uint32_t bmval[3] = { 0 }; 10681da177e4SLinus Torvalds 10691da177e4SLinus Torvalds /* 10701da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 10711da177e4SLinus Torvalds */ 107228cf22d0STrond Myklebust if ((iap->ia_valid & ATTR_SIZE) && (attrmask[0] & FATTR4_WORD0_SIZE)) { 1073d7067b2dSTrond Myklebust bmval[0] |= FATTR4_WORD0_SIZE; 10741da177e4SLinus Torvalds len += 8; 1075d7067b2dSTrond Myklebust } 1076d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MODE) { 107728cf22d0STrond Myklebust if (umask && (attrmask[2] & FATTR4_WORD2_MODE_UMASK)) { 1078dff25ddbSAndreas Gruenbacher bmval[2] |= FATTR4_WORD2_MODE_UMASK; 1079dff25ddbSAndreas Gruenbacher len += 8; 108028cf22d0STrond Myklebust } else if (attrmask[1] & FATTR4_WORD1_MODE) { 1081d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_MODE; 10821da177e4SLinus Torvalds len += 4; 1083d7067b2dSTrond Myklebust } 1084dff25ddbSAndreas Gruenbacher } 108528cf22d0STrond Myklebust if ((iap->ia_valid & ATTR_UID) && (attrmask[1] & FATTR4_WORD1_OWNER)) { 1086e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 10871da177e4SLinus Torvalds if (owner_namelen < 0) { 1088fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 1089e5782076SEric W. Biederman from_kuid(&init_user_ns, iap->ia_uid)); 10901da177e4SLinus Torvalds /* XXX */ 10911da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10921da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10931da177e4SLinus Torvalds /* goto out; */ 10941da177e4SLinus Torvalds } 1095d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER; 10961da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10971da177e4SLinus Torvalds } 109828cf22d0STrond Myklebust if ((iap->ia_valid & ATTR_GID) && 109928cf22d0STrond Myklebust (attrmask[1] & FATTR4_WORD1_OWNER_GROUP)) { 1100e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 11011da177e4SLinus Torvalds if (owner_grouplen < 0) { 1102fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 1103e5782076SEric W. Biederman from_kgid(&init_user_ns, iap->ia_gid)); 11041da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 11051da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 11061da177e4SLinus Torvalds /* goto out; */ 11071da177e4SLinus Torvalds } 1108d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER_GROUP; 11091da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 11101da177e4SLinus Torvalds } 111128cf22d0STrond Myklebust if (attrmask[1] & FATTR4_WORD1_TIME_ACCESS_SET) { 1112d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_ATIME_SET) { 1113d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 111436b3743fSTrond Myklebust len += 4 + (nfstime4_maxsz << 2); 1115d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_ATIME) { 1116d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 11171da177e4SLinus Torvalds len += 4; 1118d7067b2dSTrond Myklebust } 111928cf22d0STrond Myklebust } 112028cf22d0STrond Myklebust if (attrmask[1] & FATTR4_WORD1_TIME_MODIFY_SET) { 1121d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MTIME_SET) { 1122d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 112336b3743fSTrond Myklebust len += 4 + (nfstime4_maxsz << 2); 1124d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_MTIME) { 1125d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 11261da177e4SLinus Torvalds len += 4; 1127d7067b2dSTrond Myklebust } 11285334c5bdSKinglong Mee } 11295334c5bdSKinglong Mee 113028cf22d0STrond Myklebust if (label && (attrmask[2] & FATTR4_WORD2_SECURITY_LABEL)) { 1131b4a2cf76STrond Myklebust len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2); 1132d7067b2dSTrond Myklebust bmval[2] |= FATTR4_WORD2_SECURITY_LABEL; 1133d7067b2dSTrond Myklebust } 1134d7067b2dSTrond Myklebust 113540a3426cSTrond Myklebust xdr_encode_bitmap4(xdr, bmval, ARRAY_SIZE(bmval)); 113640a3426cSTrond Myklebust xdr_stream_encode_opaque_inline(xdr, (void **)&p, len); 11371da177e4SLinus Torvalds 1138d7067b2dSTrond Myklebust if (bmval[0] & FATTR4_WORD0_SIZE) 1139b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 1140d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_MODE) 1141e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 1142d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER) 1143811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 1144d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER_GROUP) 1145811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 1146d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) { 11471da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 1148e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 114936b3743fSTrond Myklebust p = xdr_encode_nfstime4(p, &iap->ia_atime); 1150d7067b2dSTrond Myklebust } else 1151e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11521da177e4SLinus Torvalds } 1153d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) { 11541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 1155e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 115636b3743fSTrond Myklebust p = xdr_encode_nfstime4(p, &iap->ia_mtime); 1157d7067b2dSTrond Myklebust } else 1158e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11591da177e4SLinus Torvalds } 1160d7067b2dSTrond Myklebust if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) { 1161aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->lfs); 1162aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->pi); 1163aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->len); 1164aa9c2669SDavid Quigley p = xdr_encode_opaque_fixed(p, label->label, label->len); 1165aa9c2669SDavid Quigley } 1166dff25ddbSAndreas Gruenbacher if (bmval[2] & FATTR4_WORD2_MODE_UMASK) { 1167dff25ddbSAndreas Gruenbacher *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 1168dff25ddbSAndreas Gruenbacher *p++ = cpu_to_be32(*umask); 1169dff25ddbSAndreas Gruenbacher } 11701da177e4SLinus Torvalds 11711da177e4SLinus Torvalds /* out: */ 11721da177e4SLinus Torvalds } 11731da177e4SLinus Torvalds 1174cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 11751da177e4SLinus Torvalds { 1176475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1177475d4ba0STrond Myklebust encode_uint32(xdr, access); 11781da177e4SLinus Torvalds } 11791da177e4SLinus Torvalds 1180cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11811da177e4SLinus Torvalds { 1182ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11834ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1184566fcec6STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 11851da177e4SLinus Torvalds } 11861da177e4SLinus Torvalds 11870b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11881da177e4SLinus Torvalds { 11898687b63aSAl Viro __be32 *p; 11901da177e4SLinus Torvalds 1191475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1192475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1193b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 119434558513SBenny Halevy *p = cpu_to_be32(args->count); 11951da177e4SLinus Torvalds } 11961da177e4SLinus Torvalds 1197cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11981da177e4SLinus Torvalds { 11998687b63aSAl Viro __be32 *p; 12001da177e4SLinus Torvalds 1201475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1202475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 12031da177e4SLinus Torvalds 12041da177e4SLinus Torvalds switch (create->ftype) { 12051da177e4SLinus Torvalds case NF4LNK: 120613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 120734558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 12082fcc213aSChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, 12092fcc213aSChuck Lever create->u.symlink.len); 12102fcc213aSChuck Lever xdr->buf->flags |= XDRBUF_WRITE; 12111da177e4SLinus Torvalds break; 12121da177e4SLinus Torvalds 12131da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 121413c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1215e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 121634558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 12171da177e4SLinus Torvalds break; 12181da177e4SLinus Torvalds 12191da177e4SLinus Torvalds default: 12201da177e4SLinus Torvalds break; 12211da177e4SLinus Torvalds } 12221da177e4SLinus Torvalds 1223811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 122428cf22d0STrond Myklebust encode_attrs(xdr, create->attrs, create->label, &create->umask, 122528cf22d0STrond Myklebust create->server, create->server->attr_bitmask); 12261da177e4SLinus Torvalds } 12271da177e4SLinus Torvalds 122837c88763STrond Myklebust static void encode_getattr(struct xdr_stream *xdr, 122937c88763STrond Myklebust const __u32 *bitmap, const __u32 *mask, size_t len, 1230dae100c2SFred Isaman struct compound_hdr *hdr) 1231dae100c2SFred Isaman { 123237c88763STrond Myklebust __u32 masked_bitmap[nfs4_fattr_bitmap_maxsz]; 1233dae100c2SFred Isaman 1234ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 123537c88763STrond Myklebust if (mask) { 123637c88763STrond Myklebust if (WARN_ON_ONCE(len > ARRAY_SIZE(masked_bitmap))) 123737c88763STrond Myklebust len = ARRAY_SIZE(masked_bitmap); 123837c88763STrond Myklebust len = mask_bitmap4(bitmap, mask, masked_bitmap, len); 123937c88763STrond Myklebust bitmap = masked_bitmap; 1240dae100c2SFred Isaman } 124137c88763STrond Myklebust xdr_encode_bitmap4(xdr, bitmap, len); 1242dae100c2SFred Isaman } 1243dae100c2SFred Isaman 1244cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12451da177e4SLinus Torvalds { 124637c88763STrond Myklebust encode_getattr(xdr, nfs4_fattr_bitmap, bitmask, 124737c88763STrond Myklebust ARRAY_SIZE(nfs4_fattr_bitmap), hdr); 12481da177e4SLinus Torvalds } 12491da177e4SLinus Torvalds 125088034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 12511549210fSTrond Myklebust const u32 *open_bitmap, 125288034c3dSAndy Adamson struct compound_hdr *hdr) 125388034c3dSAndy Adamson { 125437c88763STrond Myklebust encode_getattr(xdr, open_bitmap, bitmask, 3, hdr); 125588034c3dSAndy Adamson } 125688034c3dSAndy Adamson 1257cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12581da177e4SLinus Torvalds { 125937c88763STrond Myklebust encode_getattr(xdr, nfs4_fsinfo_bitmap, bitmask, 126037c88763STrond Myklebust ARRAY_SIZE(nfs4_fsinfo_bitmap), hdr); 12611da177e4SLinus Torvalds } 12621da177e4SLinus Torvalds 1263cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1264830b8e33SManoj Naik { 126537c88763STrond Myklebust encode_getattr(xdr, nfs4_fs_locations_bitmap, bitmask, 126637c88763STrond Myklebust ARRAY_SIZE(nfs4_fs_locations_bitmap), hdr); 1267830b8e33SManoj Naik } 1268830b8e33SManoj Naik 1269cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12701da177e4SLinus Torvalds { 1271ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12721da177e4SLinus Torvalds } 12731da177e4SLinus Torvalds 1274cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12751da177e4SLinus Torvalds { 1276ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12776fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12781da177e4SLinus Torvalds } 12791da177e4SLinus Torvalds 1280911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1281911d1aafSTrond Myklebust { 1282f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1283911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1284911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1285911d1aafSTrond Myklebust } 1286911d1aafSTrond Myklebust 1287911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1288911d1aafSTrond Myklebust { 1289911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1290911d1aafSTrond Myklebust return ~(uint64_t)0; 1291911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1292911d1aafSTrond Myklebust } 1293911d1aafSTrond Myklebust 1294daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1295daccbdedSTrond Myklebust { 1296daccbdedSTrond Myklebust __be32 *p; 1297daccbdedSTrond Myklebust 1298d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1299daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1300d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1301daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1302d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1303daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1304daccbdedSTrond Myklebust } 1305daccbdedSTrond Myklebust 13061da177e4SLinus Torvalds /* 13071da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 13081da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 13091da177e4SLinus Torvalds */ 1310cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 13111da177e4SLinus Torvalds { 13128687b63aSAl Viro __be32 *p; 13131da177e4SLinus Torvalds 1314475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1315475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1316e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1317e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1318b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1319b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 132034558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1321911d1aafSTrond Myklebust if (args->new_lock_owner){ 13224ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1323425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->open_stateid); 13244ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1325daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13261da177e4SLinus Torvalds } 13271da177e4SLinus Torvalds else { 1328425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->lock_stateid); 13294ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 13301da177e4SLinus Torvalds } 13311da177e4SLinus Torvalds } 13321da177e4SLinus Torvalds 1333cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 13341da177e4SLinus Torvalds { 13358687b63aSAl Viro __be32 *p; 13361da177e4SLinus Torvalds 1337475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1338475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1339e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1340b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1341b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1342daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13431da177e4SLinus Torvalds } 13441da177e4SLinus Torvalds 1345cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13461da177e4SLinus Torvalds { 13478687b63aSAl Viro __be32 *p; 13481da177e4SLinus Torvalds 1349475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1350475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13514ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1352425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1353ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1354b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 135534558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13561da177e4SLinus Torvalds } 13571da177e4SLinus Torvalds 1358d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1359d3c7b7ccSTrond Myklebust { 1360ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1361d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1362d3c7b7ccSTrond Myklebust } 1363d3c7b7ccSTrond Myklebust 1364cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13651da177e4SLinus Torvalds { 1366ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13676fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13681da177e4SLinus Torvalds } 13691da177e4SLinus Torvalds 13705b5faaf6SJeff Layton static void encode_lookupp(struct xdr_stream *xdr, struct compound_hdr *hdr) 13715b5faaf6SJeff Layton { 13725b5faaf6SJeff Layton encode_op_hdr(xdr, OP_LOOKUPP, decode_lookupp_maxsz, hdr); 13735b5faaf6SJeff Layton } 13745b5faaf6SJeff Layton 13756ae37339STrond Myklebust static void encode_share_access(struct xdr_stream *xdr, u32 share_access) 13761da177e4SLinus Torvalds { 13778687b63aSAl Viro __be32 *p; 13781da177e4SLinus Torvalds 137913c65ce9SBenny Halevy p = reserve_space(xdr, 8); 13806ae37339STrond Myklebust *p++ = cpu_to_be32(share_access); 138134558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13821da177e4SLinus Torvalds } 13831da177e4SLinus Torvalds 13841da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13851da177e4SLinus Torvalds { 13868687b63aSAl Viro __be32 *p; 13871da177e4SLinus Torvalds /* 13881da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13891da177e4SLinus Torvalds * owner 4 = 32 13901da177e4SLinus Torvalds */ 13914ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 13926ae37339STrond Myklebust encode_share_access(xdr, arg->share_access); 139395b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1394b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 139595b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 139693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1397d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 139895b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 139995b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 14001da177e4SLinus Torvalds } 14011da177e4SLinus Torvalds 14021da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14031da177e4SLinus Torvalds { 14048687b63aSAl Viro __be32 *p; 14051da177e4SLinus Torvalds 140613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 1407549b19ccSTrond Myklebust switch(arg->createmode) { 1408549b19ccSTrond Myklebust case NFS4_CREATE_UNCHECKED: 140934558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 141028cf22d0STrond Myklebust encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask, 141128cf22d0STrond Myklebust arg->server, arg->server->attr_bitmask); 14121da177e4SLinus Torvalds break; 1413549b19ccSTrond Myklebust case NFS4_CREATE_GUARDED: 14144882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 141528cf22d0STrond Myklebust encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask, 141628cf22d0STrond Myklebust arg->server, arg->server->attr_bitmask); 1417549b19ccSTrond Myklebust break; 1418549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE: 1419549b19ccSTrond Myklebust *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 1420549b19ccSTrond Myklebust encode_nfs4_verifier(xdr, &arg->u.verifier); 1421549b19ccSTrond Myklebust break; 1422549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE4_1: 14234882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 14244882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 142528cf22d0STrond Myklebust encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask, 142628cf22d0STrond Myklebust arg->server, arg->server->exclcreat_bitmask); 14274882ef72SAlexandros Batsakis } 14284882ef72SAlexandros Batsakis } 14291da177e4SLinus Torvalds 14301da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14311da177e4SLinus Torvalds { 14328687b63aSAl Viro __be32 *p; 14331da177e4SLinus Torvalds 143413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14351da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14361da177e4SLinus Torvalds case 0: 143734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14381da177e4SLinus Torvalds break; 14391da177e4SLinus Torvalds default: 144034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14411da177e4SLinus Torvalds encode_createmode(xdr, arg); 14421da177e4SLinus Torvalds } 14431da177e4SLinus Torvalds } 14441da177e4SLinus Torvalds 1445bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14461da177e4SLinus Torvalds { 14478687b63aSAl Viro __be32 *p; 14481da177e4SLinus Torvalds 144913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14501da177e4SLinus Torvalds switch (delegation_type) { 14511da177e4SLinus Torvalds case 0: 145234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14531da177e4SLinus Torvalds break; 14541da177e4SLinus Torvalds case FMODE_READ: 145534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14561da177e4SLinus Torvalds break; 14571da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 145834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14591da177e4SLinus Torvalds break; 14601da177e4SLinus Torvalds default: 14611da177e4SLinus Torvalds BUG(); 14621da177e4SLinus Torvalds } 14631da177e4SLinus Torvalds } 14641da177e4SLinus Torvalds 14651da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14661da177e4SLinus Torvalds { 14678687b63aSAl Viro __be32 *p; 14681da177e4SLinus Torvalds 146913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14711da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14721da177e4SLinus Torvalds } 14731da177e4SLinus Torvalds 1474bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14751da177e4SLinus Torvalds { 14768687b63aSAl Viro __be32 *p; 14771da177e4SLinus Torvalds 147813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14801da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14811da177e4SLinus Torvalds } 14821da177e4SLinus Torvalds 14831da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14841da177e4SLinus Torvalds { 14858687b63aSAl Viro __be32 *p; 14861da177e4SLinus Torvalds 1487ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1488ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1489ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14901da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14911da177e4SLinus Torvalds } 14921da177e4SLinus Torvalds 1493d9fc6619STrond Myklebust static inline void encode_claim_fh(struct xdr_stream *xdr) 1494d9fc6619STrond Myklebust { 1495d9fc6619STrond Myklebust __be32 *p; 1496d9fc6619STrond Myklebust 1497d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1498d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); 1499d9fc6619STrond Myklebust } 1500d9fc6619STrond Myklebust 1501d9fc6619STrond Myklebust static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1502d9fc6619STrond Myklebust { 1503d9fc6619STrond Myklebust __be32 *p; 1504d9fc6619STrond Myklebust 1505d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1506d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); 1507d9fc6619STrond Myklebust encode_nfs4_stateid(xdr, stateid); 1508d9fc6619STrond Myklebust } 1509d9fc6619STrond Myklebust 1510cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 15111da177e4SLinus Torvalds { 1512ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 15131da177e4SLinus Torvalds encode_openhdr(xdr, arg); 15141da177e4SLinus Torvalds encode_opentype(xdr, arg); 15151da177e4SLinus Torvalds switch (arg->claim) { 15161da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 15171da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 15181da177e4SLinus Torvalds break; 15191da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 15201da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 15211da177e4SLinus Torvalds break; 15221da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 15231da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 15241da177e4SLinus Torvalds break; 1525d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_FH: 1526d9fc6619STrond Myklebust encode_claim_fh(xdr); 1527d9fc6619STrond Myklebust break; 1528d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_DELEG_CUR_FH: 1529d9fc6619STrond Myklebust encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); 1530d9fc6619STrond Myklebust break; 15311da177e4SLinus Torvalds default: 15321da177e4SLinus Torvalds BUG(); 15331da177e4SLinus Torvalds } 15341da177e4SLinus Torvalds } 15351da177e4SLinus Torvalds 1536cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 15371da177e4SLinus Torvalds { 1538ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1539ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15404ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15411da177e4SLinus Torvalds } 15421da177e4SLinus Torvalds 1543cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 15441da177e4SLinus Torvalds { 1545ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1546566fcec6STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 15474ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15486ae37339STrond Myklebust encode_share_access(xdr, arg->share_access); 15491da177e4SLinus Torvalds } 15501da177e4SLinus Torvalds 1551cf8cdbe5SAndy Adamson static void 1552d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15531da177e4SLinus Torvalds { 1554ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15556fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15561da177e4SLinus Torvalds } 15571da177e4SLinus Torvalds 1558cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15591da177e4SLinus Torvalds { 1560ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15611da177e4SLinus Torvalds } 15621da177e4SLinus Torvalds 15633c6b899cSAnna Schumaker static void encode_read(struct xdr_stream *xdr, const struct nfs_pgio_args *args, 15643c6b899cSAnna Schumaker struct compound_hdr *hdr) 15651da177e4SLinus Torvalds { 15668687b63aSAl Viro __be32 *p; 15671da177e4SLinus Torvalds 1568ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 15699b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 15701da177e4SLinus Torvalds 157113c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1572b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 157334558513SBenny Halevy *p = cpu_to_be32(args->count); 15741da177e4SLinus Torvalds } 15751da177e4SLinus Torvalds 1576cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15771da177e4SLinus Torvalds { 1578aa9c2669SDavid Quigley uint32_t attrs[3] = { 157928331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 158028331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 158128331a46STrond Myklebust }; 15826f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1583cd93710eSChuck Lever __be32 *p, verf[2]; 1584d204c5d2STrond Myklebust uint32_t attrlen = 0; 1585d204c5d2STrond Myklebust unsigned int i; 15861da177e4SLinus Torvalds 158782f2e547SBryan Schumaker if (readdir->plus) { 158882f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 158928331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 159082f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 159182f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 159282f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 159382f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 1594d204c5d2STrond Myklebust attrs[2] |= FATTR4_WORD2_SECURITY_LABEL; 15956f7a35bdSTrond Myklebust dircount >>= 1; 159682f2e547SBryan Schumaker } 159728331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 159828331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 159928331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 1600d204c5d2STrond Myklebust for (i = 0; i < ARRAY_SIZE(attrs); i++) { 1601d204c5d2STrond Myklebust attrs[i] &= readdir->bitmask[i]; 1602d204c5d2STrond Myklebust if (attrs[i] != 0) 1603d204c5d2STrond Myklebust attrlen = i+1; 1604d204c5d2STrond Myklebust } 16056f7a35bdSTrond Myklebust 1606475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1607ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1608cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1609d204c5d2STrond Myklebust p = reserve_space(xdr, 12 + (attrlen << 2)); 16106f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 16116f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 1612d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrlen); 1613d204c5d2STrond Myklebust for (i = 0; i < attrlen; i++) 1614d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrs[i]); 1615cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 1616aa9c2669SDavid Quigley 1617aa9c2669SDavid Quigley dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n", 161844109241SFred Isaman __func__, 1619eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1620cd93710eSChuck Lever verf[0], verf[1], 1621eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1622aa9c2669SDavid Quigley attrs[1] & readdir->bitmask[1], 1623aa9c2669SDavid Quigley attrs[2] & readdir->bitmask[2]); 16241da177e4SLinus Torvalds } 16251da177e4SLinus Torvalds 1626cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 16271da177e4SLinus Torvalds { 1628ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 16291da177e4SLinus Torvalds } 16301da177e4SLinus Torvalds 1631cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16321da177e4SLinus Torvalds { 1633ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 16346fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16351da177e4SLinus Torvalds } 16361da177e4SLinus Torvalds 1637cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16381da177e4SLinus Torvalds { 1639ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1640811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1641811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 16421da177e4SLinus Torvalds } 16431da177e4SLinus Torvalds 1644bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1645bb4dae5eSChuck Lever struct compound_hdr *hdr) 16461da177e4SLinus Torvalds { 1647475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1648ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16491da177e4SLinus Torvalds } 16501da177e4SLinus Torvalds 1651cf8cdbe5SAndy Adamson static void 1652d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 165356ae19f3STrond Myklebust { 1654ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 165556ae19f3STrond Myklebust } 165656ae19f3STrond Myklebust 16579f06c719SChuck Lever static void 1658fcc85819SChristoph Hellwig encode_setacl(struct xdr_stream *xdr, const struct nfs_setaclargs *arg, 1659fcc85819SChristoph Hellwig struct compound_hdr *hdr) 166023ec6965SJ. Bruce Fields { 16618687b63aSAl Viro __be32 *p; 166223ec6965SJ. Bruce Fields 1663ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1664ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 166513c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1666e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 166734558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 166813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 166934558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 16708fbcf237SAndreas Gruenbacher xdr_write_pages(xdr, arg->acl_pages, 0, arg->acl_len); 167123ec6965SJ. Bruce Fields } 167223ec6965SJ. Bruce Fields 1673cf8cdbe5SAndy Adamson static void 1674d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16751da177e4SLinus Torvalds { 1676ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16771da177e4SLinus Torvalds } 16781da177e4SLinus Torvalds 1679cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16801da177e4SLinus Torvalds { 1681ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1682ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 168328cf22d0STrond Myklebust encode_attrs(xdr, arg->iap, arg->label, NULL, server, 168428cf22d0STrond Myklebust server->attr_bitmask); 16851da177e4SLinus Torvalds } 16861da177e4SLinus Torvalds 1687cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16881da177e4SLinus Torvalds { 16898687b63aSAl Viro __be32 *p; 16901da177e4SLinus Torvalds 169170019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1692cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16931da177e4SLinus Torvalds 16943a6bb738SJeff Layton encode_string(xdr, strlen(setclientid->sc_clnt->cl_owner_id), 16953a6bb738SJeff Layton setclientid->sc_clnt->cl_owner_id); 169613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 169734558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16981da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16991da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 170013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 17013a6bb738SJeff Layton *p = cpu_to_be32(setclientid->sc_clnt->cl_cb_ident); 17021da177e4SLinus Torvalds } 17031da177e4SLinus Torvalds 1704bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 17051da177e4SLinus Torvalds { 1706475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1707475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1708ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1709cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 17101da177e4SLinus Torvalds } 17111da177e4SLinus Torvalds 17123c6b899cSAnna Schumaker static void encode_write(struct xdr_stream *xdr, const struct nfs_pgio_args *args, 17133c6b899cSAnna Schumaker struct compound_hdr *hdr) 17141da177e4SLinus Torvalds { 17158687b63aSAl Viro __be32 *p; 17161da177e4SLinus Torvalds 1717ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 17189b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 17191da177e4SLinus Torvalds 172013c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1721b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1722e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 172334558513SBenny Halevy *p = cpu_to_be32(args->count); 17241da177e4SLinus Torvalds 17251da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 17261da177e4SLinus Torvalds } 17271da177e4SLinus Torvalds 1728cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 17291da177e4SLinus Torvalds { 1730ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1731ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 17321da177e4SLinus Torvalds } 17339b7b9fccSAndy Adamson 17345a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 17355a5ea0d4SBryan Schumaker { 1736ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 17376fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 17385a5ea0d4SBryan Schumaker } 17395a5ea0d4SBryan Schumaker 174099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 17419b7b9fccSAndy Adamson /* NFSv4.1 operations */ 17427c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 1743fcc85819SChristoph Hellwig const struct nfs41_bind_conn_to_session_args *args, 17447c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 17457c44f1aeSWeston Andros Adamson { 17467c44f1aeSWeston Andros Adamson __be32 *p; 17477c44f1aeSWeston Andros Adamson 17487c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17497c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 175071a097c6STrond Myklebust encode_opaque_fixed(xdr, args->sessionid.data, NFS4_MAX_SESSIONID_LEN); 17517c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 175271a097c6STrond Myklebust *p++ = cpu_to_be32(args->dir); 175371a097c6STrond Myklebust *p = (args->use_conn_in_rdma_mode) ? cpu_to_be32(1) : cpu_to_be32(0); 17547c44f1aeSWeston Andros Adamson } 17557c44f1aeSWeston Andros Adamson 1756fcc85819SChristoph Hellwig static void encode_op_map(struct xdr_stream *xdr, const struct nfs4_op_map *op_map) 17572031cd1aSWeston Andros Adamson { 17582031cd1aSWeston Andros Adamson unsigned int i; 17592031cd1aSWeston Andros Adamson encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS); 17602031cd1aSWeston Andros Adamson for (i = 0; i < NFS4_OP_MAP_NUM_WORDS; i++) 17612031cd1aSWeston Andros Adamson encode_uint32(xdr, op_map->u.words[i]); 17622031cd1aSWeston Andros Adamson } 17632031cd1aSWeston Andros Adamson 176499fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 1765fcc85819SChristoph Hellwig const struct nfs41_exchange_id_args *args, 176699fe60d0SBenny Halevy struct compound_hdr *hdr) 176799fe60d0SBenny Halevy { 176899fe60d0SBenny Halevy __be32 *p; 1769d751f748SJim Rees char impl_name[IMPL_NAME_LIMIT]; 1770db8ac8baSWeston Andros Adamson int len = 0; 177199fe60d0SBenny Halevy 177270019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1773fd40559cSTrond Myklebust encode_nfs4_verifier(xdr, &args->verifier); 177499fe60d0SBenny Halevy 17753a6bb738SJeff Layton encode_string(xdr, strlen(args->client->cl_owner_id), 17763a6bb738SJeff Layton args->client->cl_owner_id); 177799fe60d0SBenny Halevy 17782031cd1aSWeston Andros Adamson encode_uint32(xdr, args->flags); 17792031cd1aSWeston Andros Adamson encode_uint32(xdr, args->state_protect.how); 17802031cd1aSWeston Andros Adamson 17812031cd1aSWeston Andros Adamson switch (args->state_protect.how) { 17822031cd1aSWeston Andros Adamson case SP4_NONE: 17832031cd1aSWeston Andros Adamson break; 17842031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 17852031cd1aSWeston Andros Adamson encode_op_map(xdr, &args->state_protect.enforce); 17862031cd1aSWeston Andros Adamson encode_op_map(xdr, &args->state_protect.allow); 17872031cd1aSWeston Andros Adamson break; 17882031cd1aSWeston Andros Adamson default: 17892031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 17902031cd1aSWeston Andros Adamson break; 17912031cd1aSWeston Andros Adamson } 1792db8ac8baSWeston Andros Adamson 1793db8ac8baSWeston Andros Adamson if (send_implementation_id && 1794db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1795db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1796d751f748SJim Rees <= sizeof(impl_name) + 1) 1797db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1798db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1799db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1800db8ac8baSWeston Andros Adamson 1801db8ac8baSWeston Andros Adamson if (len > 0) { 18022031cd1aSWeston Andros Adamson encode_uint32(xdr, 1); /* implementation id array length=1 */ 1803db8ac8baSWeston Andros Adamson 1804db8ac8baSWeston Andros Adamson encode_string(xdr, 1805db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1806db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1807db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1808db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1809db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1810db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1811db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1812db8ac8baSWeston Andros Adamson } else 18132031cd1aSWeston Andros Adamson encode_uint32(xdr, 0); /* implementation id array length=0 */ 181499fe60d0SBenny Halevy } 1815fc931582SAndy Adamson 1816fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1817fcc85819SChristoph Hellwig const struct nfs41_create_session_args *args, 1818fc931582SAndy Adamson struct compound_hdr *hdr) 1819fc931582SAndy Adamson { 1820fc931582SAndy Adamson __be32 *p; 1821fc931582SAndy Adamson struct nfs_client *clp = args->client; 182289f0ff38STrond Myklebust struct rpc_clnt *clnt = clp->cl_rpcclient; 1823f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 18248e0d46e1SMike Sager u32 max_resp_sz_cached; 18258e0d46e1SMike Sager 18268e0d46e1SMike Sager /* 18278e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 18288e0d46e1SMike Sager * 2 is the verifier. 18298e0d46e1SMike Sager */ 183035c036efSJ. Bruce Fields max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 2) 183135c036efSJ. Bruce Fields * XDR_UNIT + RPC_MAX_AUTH_SIZE; 1832fc931582SAndy Adamson 1833475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 183489f0ff38STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + clnt->cl_nodelen + 12); 183579969dd1STrond Myklebust p = xdr_encode_hyper(p, args->clientid); 183679969dd1STrond Myklebust *p++ = cpu_to_be32(args->seqid); /*Sequence id */ 1837e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1838fc931582SAndy Adamson 1839fc931582SAndy Adamson /* Fore Channel */ 1840c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1841e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1842e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 18438e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1844e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1845e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1846e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1847fc931582SAndy Adamson 1848fc931582SAndy Adamson /* Back Channel */ 1849c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1850e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1851e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1852e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1853e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1854e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1855e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1856fc931582SAndy Adamson 1857e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1858e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1859e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1860fc931582SAndy Adamson 1861fc931582SAndy Adamson /* authsys_parms rfc1831 */ 18622f86e091SDeepa Dinamani *p++ = cpu_to_be32(ktime_to_ns(nn->boot_time)); /* stamp */ 186389f0ff38STrond Myklebust p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen); 1864e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 186634558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1867fc931582SAndy Adamson } 18680f3e66c6SAndy Adamson 18690f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 1870fcc85819SChristoph Hellwig const struct nfs4_session *session, 18710f3e66c6SAndy Adamson struct compound_hdr *hdr) 18720f3e66c6SAndy Adamson { 1873475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1874475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18750f3e66c6SAndy Adamson } 187618019753SRicardo Labiaga 187766245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 187866245539STrond Myklebust uint64_t clientid, 187966245539STrond Myklebust struct compound_hdr *hdr) 188066245539STrond Myklebust { 188166245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 188266245539STrond Myklebust encode_uint64(xdr, clientid); 188366245539STrond Myklebust } 188466245539STrond Myklebust 188518019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 1886fcc85819SChristoph Hellwig const struct nfs41_reclaim_complete_args *args, 188718019753SRicardo Labiaga struct compound_hdr *hdr) 188818019753SRicardo Labiaga { 1889475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1890475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 189118019753SRicardo Labiaga } 189299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 189399fe60d0SBenny Halevy 18949b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18959b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18969b7b9fccSAndy Adamson struct compound_hdr *hdr) 18979b7b9fccSAndy Adamson { 18989b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18992b2fa717STrond Myklebust struct nfs4_session *session; 1900fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 19012b2fa717STrond Myklebust struct nfs4_slot *slot = args->sa_slot; 1902fc01cea9SAndy Adamson __be32 *p; 19039b7b9fccSAndy Adamson 19042b2fa717STrond Myklebust tp = slot->table; 19052b2fa717STrond Myklebust session = tp->session; 19063bd2384aSChuck Lever if (!session) 19073bd2384aSChuck Lever return; 1908fc01cea9SAndy Adamson 1909475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1910fc01cea9SAndy Adamson 1911fc01cea9SAndy Adamson /* 1912fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1913fc01cea9SAndy Adamson */ 1914fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1915fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1916fc01cea9SAndy Adamson __func__, 1917fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1918fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1919fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1920fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 19212b2fa717STrond Myklebust slot->seq_nr, slot->slot_nr, 1922fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1923475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 192493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1925e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 19262b2fa717STrond Myklebust *p++ = cpu_to_be32(slot->slot_nr); 1927e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 192834558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 19299b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 19309b7b9fccSAndy Adamson } 19319b7b9fccSAndy Adamson 1932b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1933b1f69b75SAndy Adamson static void 1934b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1935b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1936b1f69b75SAndy Adamson struct compound_hdr *hdr) 1937b1f69b75SAndy Adamson { 1938b1f69b75SAndy Adamson __be32 *p; 1939b1f69b75SAndy Adamson 1940475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 194184c9dee3SChristoph Hellwig p = reserve_space(xdr, NFS4_DEVICEID4_SIZE + 4 + 4); 1942b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1943b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1944b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1945f1c097beSAndy Adamson *p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */ 194684c9dee3SChristoph Hellwig 194784c9dee3SChristoph Hellwig p = reserve_space(xdr, 4 + 4); 194884c9dee3SChristoph Hellwig *p++ = cpu_to_be32(1); /* bitmap length */ 19494e590803STrond Myklebust *p++ = cpu_to_be32(args->notify_types); 1950b1f69b75SAndy Adamson } 1951b1f69b75SAndy Adamson 1952b1f69b75SAndy Adamson static void 1953b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1954b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1955b1f69b75SAndy Adamson struct compound_hdr *hdr) 1956b1f69b75SAndy Adamson { 1957b1f69b75SAndy Adamson __be32 *p; 1958b1f69b75SAndy Adamson 1959475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1960475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1961b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1962b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1963b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1964b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1965b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1966b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1967ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1968475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1969b1f69b75SAndy Adamson 1970b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1971b1f69b75SAndy Adamson __func__, 1972b1f69b75SAndy Adamson args->type, 1973b1f69b75SAndy Adamson args->range.iomode, 1974b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1975b1f69b75SAndy Adamson (unsigned long)args->range.length, 1976b1f69b75SAndy Adamson args->maxcount); 1977b1f69b75SAndy Adamson } 1978863a3c6cSAndy Adamson 1979863a3c6cSAndy Adamson static int 1980863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1981ac7db726SBenny Halevy struct inode *inode, 1982fcc85819SChristoph Hellwig const struct nfs4_layoutcommit_args *args, 1983863a3c6cSAndy Adamson struct compound_hdr *hdr) 1984863a3c6cSAndy Adamson { 1985863a3c6cSAndy Adamson __be32 *p; 1986863a3c6cSAndy Adamson 1987863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1988863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1989863a3c6cSAndy Adamson 1990475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 1991475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1992863a3c6cSAndy Adamson /* Only whole file layouts */ 1993863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 19943557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 1995ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 1996ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 19972e18d4d8STrond Myklebust if (args->lastbytewritten != U64_MAX) { 1998ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 1999863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 2000863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 20012e18d4d8STrond Myklebust } else { 20022e18d4d8STrond Myklebust p = reserve_space(xdr, 12); 20032e18d4d8STrond Myklebust *p++ = cpu_to_be32(0); /* newoffset = FALSE */ 20042e18d4d8STrond Myklebust } 2005863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 2006863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 2007ac7db726SBenny Halevy 20085f919c9fSChristoph Hellwig encode_uint32(xdr, args->layoutupdate_len); 200973504740STrond Myklebust if (args->layoutupdate_pages) 20105f919c9fSChristoph Hellwig xdr_write_pages(xdr, args->layoutupdate_pages, 0, 20115f919c9fSChristoph Hellwig args->layoutupdate_len); 2012863a3c6cSAndy Adamson 2013863a3c6cSAndy Adamson return 0; 2014863a3c6cSAndy Adamson } 2015cbe82603SBenny Halevy 2016cbe82603SBenny Halevy static void 2017cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2018cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2019cbe82603SBenny Halevy struct compound_hdr *hdr) 2020cbe82603SBenny Halevy { 2021cbe82603SBenny Halevy __be32 *p; 2022cbe82603SBenny Halevy 2023475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 2024475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 2025cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2026cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 202715eb67c1SPeng Tao *p++ = cpu_to_be32(args->range.iomode); 2028cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2029ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 203015eb67c1SPeng Tao p = xdr_encode_hyper(p, args->range.offset); 203115eb67c1SPeng Tao p = xdr_encode_hyper(p, args->range.length); 2032cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2033ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 2034cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 20354d796d75STrond Myklebust if (args->ld_private->ops && args->ld_private->ops->encode) 20364d796d75STrond Myklebust args->ld_private->ops->encode(xdr, args, args->ld_private); 203794e5c571STrond Myklebust else 2038475d4ba0STrond Myklebust encode_uint32(xdr, 0); 2039cbe82603SBenny Halevy } 2040fca78d6dSBryan Schumaker 2041fca78d6dSBryan Schumaker static int 2042fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2043fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2044fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2045fca78d6dSBryan Schumaker { 2046475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 2047475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 2048fca78d6dSBryan Schumaker return 0; 2049fca78d6dSBryan Schumaker } 20507d974794SBryan Schumaker 20517d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 2052fcc85819SChristoph Hellwig const struct nfs41_test_stateid_args *args, 20537d974794SBryan Schumaker struct compound_hdr *hdr) 20547d974794SBryan Schumaker { 2055475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2056475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2057ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20587d974794SBryan Schumaker } 20599aeda35fSBryan Schumaker 20609aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 2061fcc85819SChristoph Hellwig const struct nfs41_free_stateid_args *args, 20629aeda35fSBryan Schumaker struct compound_hdr *hdr) 20639aeda35fSBryan Schumaker { 2064ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 20657c1d5faeSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 20669aeda35fSBryan Schumaker } 2067cf805165STrond Myklebust #else 2068cf805165STrond Myklebust static inline void 2069cf805165STrond Myklebust encode_layoutreturn(struct xdr_stream *xdr, 2070cf805165STrond Myklebust const struct nfs4_layoutreturn_args *args, 2071cf805165STrond Myklebust struct compound_hdr *hdr) 2072cf805165STrond Myklebust { 2073cf805165STrond Myklebust } 2074b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2075b1f69b75SAndy Adamson 20761da177e4SLinus Torvalds /* 20771da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20781da177e4SLinus Torvalds */ 20791da177e4SLinus Torvalds 208066cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 208166cc0429SBenny Halevy { 208266cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 20833bd2384aSChuck Lever struct nfs4_session *session = args->sa_slot->table->session; 20843bd2384aSChuck Lever if (session) 20853bd2384aSChuck Lever return session->clp->cl_mvops->minor_version; 208666cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 208766cc0429SBenny Halevy return 0; 208866cc0429SBenny Halevy } 208966cc0429SBenny Halevy 20901da177e4SLinus Torvalds /* 20911da177e4SLinus Torvalds * Encode an ACCESS request 20921da177e4SLinus Torvalds */ 20939f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 2094fcc85819SChristoph Hellwig const void *data) 20951da177e4SLinus Torvalds { 2096fcc85819SChristoph Hellwig const struct nfs4_accessargs *args = data; 20971da177e4SLinus Torvalds struct compound_hdr hdr = { 209866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20991da177e4SLinus Torvalds }; 21001da177e4SLinus Torvalds 21019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21039f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21049f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 21059f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2106d017931cSAndy Adamson encode_nops(&hdr); 21071da177e4SLinus Torvalds } 21081da177e4SLinus Torvalds 21091da177e4SLinus Torvalds /* 21101da177e4SLinus Torvalds * Encode LOOKUP request 21111da177e4SLinus Torvalds */ 21129f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 2113fcc85819SChristoph Hellwig const void *data) 21141da177e4SLinus Torvalds { 2115fcc85819SChristoph Hellwig const struct nfs4_lookup_arg *args = data; 21161da177e4SLinus Torvalds struct compound_hdr hdr = { 211766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21181da177e4SLinus Torvalds }; 21191da177e4SLinus Torvalds 21209f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21219f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21229f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21239f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21249f06c719SChuck Lever encode_getfh(xdr, &hdr); 21259f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2126d017931cSAndy Adamson encode_nops(&hdr); 21271da177e4SLinus Torvalds } 21281da177e4SLinus Torvalds 21291da177e4SLinus Torvalds /* 21305b5faaf6SJeff Layton * Encode LOOKUPP request 21315b5faaf6SJeff Layton */ 21325b5faaf6SJeff Layton static void nfs4_xdr_enc_lookupp(struct rpc_rqst *req, struct xdr_stream *xdr, 21335b5faaf6SJeff Layton const void *data) 21345b5faaf6SJeff Layton { 21355b5faaf6SJeff Layton const struct nfs4_lookupp_arg *args = data; 21365b5faaf6SJeff Layton struct compound_hdr hdr = { 21375b5faaf6SJeff Layton .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21385b5faaf6SJeff Layton }; 21395b5faaf6SJeff Layton 21405b5faaf6SJeff Layton encode_compound_hdr(xdr, req, &hdr); 21415b5faaf6SJeff Layton encode_sequence(xdr, &args->seq_args, &hdr); 21425b5faaf6SJeff Layton encode_putfh(xdr, args->fh, &hdr); 21435b5faaf6SJeff Layton encode_lookupp(xdr, &hdr); 21445b5faaf6SJeff Layton encode_getfh(xdr, &hdr); 21455b5faaf6SJeff Layton encode_getfattr(xdr, args->bitmask, &hdr); 21465b5faaf6SJeff Layton encode_nops(&hdr); 21475b5faaf6SJeff Layton } 21485b5faaf6SJeff Layton 21495b5faaf6SJeff Layton /* 21501da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21511da177e4SLinus Torvalds */ 21529f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21539f06c719SChuck Lever struct xdr_stream *xdr, 2154fcc85819SChristoph Hellwig const void *data) 21551da177e4SLinus Torvalds { 2156fcc85819SChristoph Hellwig const struct nfs4_lookup_root_arg *args = data; 21571da177e4SLinus Torvalds struct compound_hdr hdr = { 215866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21591da177e4SLinus Torvalds }; 21601da177e4SLinus Torvalds 21619f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21629f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21639f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21649f06c719SChuck Lever encode_getfh(xdr, &hdr); 21659f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2166d017931cSAndy Adamson encode_nops(&hdr); 21671da177e4SLinus Torvalds } 21681da177e4SLinus Torvalds 21691da177e4SLinus Torvalds /* 21701da177e4SLinus Torvalds * Encode REMOVE request 21711da177e4SLinus Torvalds */ 21729f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 2173fcc85819SChristoph Hellwig const void *data) 21741da177e4SLinus Torvalds { 2175fcc85819SChristoph Hellwig const struct nfs_removeargs *args = data; 21761da177e4SLinus Torvalds struct compound_hdr hdr = { 217766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21781da177e4SLinus Torvalds }; 21791da177e4SLinus Torvalds 21809f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21819f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21829f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21839f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2184d017931cSAndy Adamson encode_nops(&hdr); 21851da177e4SLinus Torvalds } 21861da177e4SLinus Torvalds 21871da177e4SLinus Torvalds /* 21881da177e4SLinus Torvalds * Encode RENAME request 21891da177e4SLinus Torvalds */ 21909f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 2191fcc85819SChristoph Hellwig const void *data) 21921da177e4SLinus Torvalds { 2193fcc85819SChristoph Hellwig const struct nfs_renameargs *args = data; 21941da177e4SLinus Torvalds struct compound_hdr hdr = { 219566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21961da177e4SLinus Torvalds }; 21971da177e4SLinus Torvalds 21989f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21999f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22009f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 22019f06c719SChuck Lever encode_savefh(xdr, &hdr); 22029f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 22039f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2204d017931cSAndy Adamson encode_nops(&hdr); 22051da177e4SLinus Torvalds } 22061da177e4SLinus Torvalds 22071da177e4SLinus Torvalds /* 22081da177e4SLinus Torvalds * Encode LINK request 22091da177e4SLinus Torvalds */ 22109f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 2211fcc85819SChristoph Hellwig const void *data) 22121da177e4SLinus Torvalds { 2213fcc85819SChristoph Hellwig const struct nfs4_link_arg *args = data; 22141da177e4SLinus Torvalds struct compound_hdr hdr = { 221566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22161da177e4SLinus Torvalds }; 22171da177e4SLinus Torvalds 22189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22209f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22219f06c719SChuck Lever encode_savefh(xdr, &hdr); 22229f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22239f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 22249f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22259f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2226d017931cSAndy Adamson encode_nops(&hdr); 22271da177e4SLinus Torvalds } 22281da177e4SLinus Torvalds 22291da177e4SLinus Torvalds /* 22301da177e4SLinus Torvalds * Encode CREATE request 22311da177e4SLinus Torvalds */ 22329f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 2233fcc85819SChristoph Hellwig const void *data) 22341da177e4SLinus Torvalds { 2235fcc85819SChristoph Hellwig const struct nfs4_create_arg *args = data; 22361da177e4SLinus Torvalds struct compound_hdr hdr = { 223766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22381da177e4SLinus Torvalds }; 22391da177e4SLinus Torvalds 22409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22429f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22439f06c719SChuck Lever encode_create(xdr, args, &hdr); 22449f06c719SChuck Lever encode_getfh(xdr, &hdr); 22459f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2246d017931cSAndy Adamson encode_nops(&hdr); 22471da177e4SLinus Torvalds } 22481da177e4SLinus Torvalds 22491da177e4SLinus Torvalds /* 22501da177e4SLinus Torvalds * Encode SYMLINK request 22511da177e4SLinus Torvalds */ 22529f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 2253fcc85819SChristoph Hellwig const void *data) 22541da177e4SLinus Torvalds { 2255fcc85819SChristoph Hellwig const struct nfs4_create_arg *args = data; 2256fcc85819SChristoph Hellwig 22579f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22581da177e4SLinus Torvalds } 22591da177e4SLinus Torvalds 22601da177e4SLinus Torvalds /* 22611da177e4SLinus Torvalds * Encode GETATTR request 22621da177e4SLinus Torvalds */ 22639f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 2264fcc85819SChristoph Hellwig const void *data) 22651da177e4SLinus Torvalds { 2266fcc85819SChristoph Hellwig const struct nfs4_getattr_arg *args = data; 22671da177e4SLinus Torvalds struct compound_hdr hdr = { 226866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22691da177e4SLinus Torvalds }; 22701da177e4SLinus Torvalds 22719f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22729f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22739f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22749f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2275d017931cSAndy Adamson encode_nops(&hdr); 22761da177e4SLinus Torvalds } 22771da177e4SLinus Torvalds 22781da177e4SLinus Torvalds /* 22791da177e4SLinus Torvalds * Encode a CLOSE request 22801da177e4SLinus Torvalds */ 22819f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 2282fcc85819SChristoph Hellwig const void *data) 22831da177e4SLinus Torvalds { 2284fcc85819SChristoph Hellwig const struct nfs_closeargs *args = data; 22851da177e4SLinus Torvalds struct compound_hdr hdr = { 228666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22871da177e4SLinus Torvalds }; 22881da177e4SLinus Torvalds 22899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22919f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2292cf805165STrond Myklebust if (args->lr_args) 2293cf805165STrond Myklebust encode_layoutreturn(xdr, args->lr_args, &hdr); 22943ecefc92STrond Myklebust if (args->bitmask != NULL) 22959f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2296d8d84983STrond Myklebust encode_close(xdr, args, &hdr); 2297d017931cSAndy Adamson encode_nops(&hdr); 22981da177e4SLinus Torvalds } 22991da177e4SLinus Torvalds 23001da177e4SLinus Torvalds /* 23011da177e4SLinus Torvalds * Encode an OPEN request 23021da177e4SLinus Torvalds */ 23039f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 2304fcc85819SChristoph Hellwig const void *data) 23051da177e4SLinus Torvalds { 2306fcc85819SChristoph Hellwig const struct nfs_openargs *args = data; 23071da177e4SLinus Torvalds struct compound_hdr hdr = { 230866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23091da177e4SLinus Torvalds }; 23101da177e4SLinus Torvalds 23119f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23129f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23139f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23149f06c719SChuck Lever encode_open(xdr, args, &hdr); 23159f06c719SChuck Lever encode_getfh(xdr, &hdr); 2316ae2bb032SWeston Andros Adamson if (args->access) 23176168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 23181549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2319d017931cSAndy Adamson encode_nops(&hdr); 23201da177e4SLinus Torvalds } 23211da177e4SLinus Torvalds 23221da177e4SLinus Torvalds /* 23231da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 23241da177e4SLinus Torvalds */ 23259f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 23269f06c719SChuck Lever struct xdr_stream *xdr, 2327fcc85819SChristoph Hellwig const void *data) 23281da177e4SLinus Torvalds { 2329fcc85819SChristoph Hellwig const struct nfs_open_confirmargs *args = data; 23301da177e4SLinus Torvalds struct compound_hdr hdr = { 2331d017931cSAndy Adamson .nops = 0, 23321da177e4SLinus Torvalds }; 23331da177e4SLinus Torvalds 23349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23359f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23369f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2337d017931cSAndy Adamson encode_nops(&hdr); 23381da177e4SLinus Torvalds } 23391da177e4SLinus Torvalds 23401da177e4SLinus Torvalds /* 23411da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 23421da177e4SLinus Torvalds */ 23439f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 23449f06c719SChuck Lever struct xdr_stream *xdr, 2345fcc85819SChristoph Hellwig const void *data) 23461da177e4SLinus Torvalds { 2347fcc85819SChristoph Hellwig const struct nfs_openargs *args = data; 23481da177e4SLinus Torvalds struct compound_hdr hdr = { 234966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23501da177e4SLinus Torvalds }; 23511da177e4SLinus Torvalds 23529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23539f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23549f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23559f06c719SChuck Lever encode_open(xdr, args, &hdr); 2356ae2bb032SWeston Andros Adamson if (args->access) 23576168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2358e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2359d017931cSAndy Adamson encode_nops(&hdr); 23601da177e4SLinus Torvalds } 23611da177e4SLinus Torvalds 23621da177e4SLinus Torvalds /* 23631da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23641da177e4SLinus Torvalds */ 23659f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23669f06c719SChuck Lever struct xdr_stream *xdr, 2367fcc85819SChristoph Hellwig const void *data) 23681da177e4SLinus Torvalds { 2369fcc85819SChristoph Hellwig const struct nfs_closeargs *args = data; 23701da177e4SLinus Torvalds struct compound_hdr hdr = { 237166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23721da177e4SLinus Torvalds }; 23731da177e4SLinus Torvalds 23749f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23759f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23769f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2377b6808145STrond Myklebust if (args->lr_args) 2378b6808145STrond Myklebust encode_layoutreturn(xdr, args->lr_args, &hdr); 23799f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 2380d017931cSAndy Adamson encode_nops(&hdr); 23811da177e4SLinus Torvalds } 23821da177e4SLinus Torvalds 23831da177e4SLinus Torvalds /* 23841da177e4SLinus Torvalds * Encode a LOCK request 23851da177e4SLinus Torvalds */ 23869f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 2387fcc85819SChristoph Hellwig const void *data) 23881da177e4SLinus Torvalds { 2389fcc85819SChristoph Hellwig const struct nfs_lock_args *args = data; 23901da177e4SLinus Torvalds struct compound_hdr hdr = { 239166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23921da177e4SLinus Torvalds }; 23931da177e4SLinus Torvalds 23949f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23959f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23969f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23979f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2398d017931cSAndy Adamson encode_nops(&hdr); 23991da177e4SLinus Torvalds } 24001da177e4SLinus Torvalds 24011da177e4SLinus Torvalds /* 24021da177e4SLinus Torvalds * Encode a LOCKT request 24031da177e4SLinus Torvalds */ 24049f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 2405fcc85819SChristoph Hellwig const void *data) 24061da177e4SLinus Torvalds { 2407fcc85819SChristoph Hellwig const struct nfs_lockt_args *args = data; 24081da177e4SLinus Torvalds struct compound_hdr hdr = { 240966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24101da177e4SLinus Torvalds }; 24111da177e4SLinus Torvalds 24129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24139f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24149f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24159f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2416d017931cSAndy Adamson encode_nops(&hdr); 24171da177e4SLinus Torvalds } 24181da177e4SLinus Torvalds 24191da177e4SLinus Torvalds /* 24201da177e4SLinus Torvalds * Encode a LOCKU request 24211da177e4SLinus Torvalds */ 24229f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 2423fcc85819SChristoph Hellwig const void *data) 24241da177e4SLinus Torvalds { 2425fcc85819SChristoph Hellwig const struct nfs_locku_args *args = data; 24261da177e4SLinus Torvalds struct compound_hdr hdr = { 242766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24281da177e4SLinus Torvalds }; 24291da177e4SLinus Torvalds 24309f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24319f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24329f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24339f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2434d017931cSAndy Adamson encode_nops(&hdr); 24351da177e4SLinus Torvalds } 24361da177e4SLinus Torvalds 24379f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 24389f06c719SChuck Lever struct xdr_stream *xdr, 2439fcc85819SChristoph Hellwig const void *data) 2440d3c7b7ccSTrond Myklebust { 2441fcc85819SChristoph Hellwig const struct nfs_release_lockowner_args *args = data; 2442d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2443d3c7b7ccSTrond Myklebust .minorversion = 0, 2444d3c7b7ccSTrond Myklebust }; 2445d3c7b7ccSTrond Myklebust 24469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24479f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2448d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2449d3c7b7ccSTrond Myklebust } 2450d3c7b7ccSTrond Myklebust 24511da177e4SLinus Torvalds /* 24521da177e4SLinus Torvalds * Encode a READLINK request 24531da177e4SLinus Torvalds */ 24549f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 2455fcc85819SChristoph Hellwig const void *data) 24561da177e4SLinus Torvalds { 2457fcc85819SChristoph Hellwig const struct nfs4_readlink *args = data; 24581da177e4SLinus Torvalds struct compound_hdr hdr = { 245966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24601da177e4SLinus Torvalds }; 24611da177e4SLinus Torvalds 24629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24649f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24659f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2466e3a535e1STrond Myklebust 246728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2468e3a535e1STrond Myklebust args->pgbase, args->pglen); 2469d017931cSAndy Adamson encode_nops(&hdr); 24701da177e4SLinus Torvalds } 24711da177e4SLinus Torvalds 24721da177e4SLinus Torvalds /* 24731da177e4SLinus Torvalds * Encode a READDIR request 24741da177e4SLinus Torvalds */ 24759f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 2476fcc85819SChristoph Hellwig const void *data) 24771da177e4SLinus Torvalds { 2478fcc85819SChristoph Hellwig const struct nfs4_readdir_arg *args = data; 24791da177e4SLinus Torvalds struct compound_hdr hdr = { 248066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24811da177e4SLinus Torvalds }; 24821da177e4SLinus Torvalds 24839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24859f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24869f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2487d6ac02dfSTrond Myklebust 248828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2489d6ac02dfSTrond Myklebust args->pgbase, args->count); 2490d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 249128f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2492d6ac02dfSTrond Myklebust args->pgbase, args->count); 2493d017931cSAndy Adamson encode_nops(&hdr); 24941da177e4SLinus Torvalds } 24951da177e4SLinus Torvalds 24961da177e4SLinus Torvalds /* 24971da177e4SLinus Torvalds * Encode a READ request 24981da177e4SLinus Torvalds */ 24999f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 2500fcc85819SChristoph Hellwig const void *data) 25011da177e4SLinus Torvalds { 2502fcc85819SChristoph Hellwig const struct nfs_pgio_args *args = data; 25031da177e4SLinus Torvalds struct compound_hdr hdr = { 250466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25051da177e4SLinus Torvalds }; 25061da177e4SLinus Torvalds 25079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25089f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25099f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25109f06c719SChuck Lever encode_read(xdr, args, &hdr); 25111da177e4SLinus Torvalds 251228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 25131da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 25144f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2515d017931cSAndy Adamson encode_nops(&hdr); 25161da177e4SLinus Torvalds } 25171da177e4SLinus Torvalds 25181da177e4SLinus Torvalds /* 25191da177e4SLinus Torvalds * Encode an SETATTR request 25201da177e4SLinus Torvalds */ 25219f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 2522fcc85819SChristoph Hellwig const void *data) 25231da177e4SLinus Torvalds { 2524fcc85819SChristoph Hellwig const struct nfs_setattrargs *args = data; 25251da177e4SLinus Torvalds struct compound_hdr hdr = { 252666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25271da177e4SLinus Torvalds }; 25281da177e4SLinus Torvalds 25299f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25309f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25319f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25329f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 25339f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2534d017931cSAndy Adamson encode_nops(&hdr); 25351da177e4SLinus Torvalds } 25361da177e4SLinus Torvalds 25371da177e4SLinus Torvalds /* 2538029d105eSJ. Bruce Fields * Encode a GETACL request 2539029d105eSJ. Bruce Fields */ 25409f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2541fcc85819SChristoph Hellwig const void *data) 2542029d105eSJ. Bruce Fields { 2543fcc85819SChristoph Hellwig const struct nfs_getaclargs *args = data; 2544029d105eSJ. Bruce Fields struct compound_hdr hdr = { 254566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2546029d105eSJ. Bruce Fields }; 254737c88763STrond Myklebust const __u32 nfs4_acl_bitmap[1] = { 254837c88763STrond Myklebust [0] = FATTR4_WORD0_ACL, 254937c88763STrond Myklebust }; 255028f56694SBenny Halevy uint32_t replen; 2551029d105eSJ. Bruce Fields 25529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25539f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25549f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25556682c14bSJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz; 255637c88763STrond Myklebust encode_getattr(xdr, nfs4_acl_bitmap, NULL, 255737c88763STrond Myklebust ARRAY_SIZE(nfs4_acl_bitmap), &hdr); 2558cf8cdbe5SAndy Adamson 255928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 25608fbcf237SAndreas Gruenbacher args->acl_pages, 0, args->acl_len); 2561bf118a34SAndy Adamson 2562d017931cSAndy Adamson encode_nops(&hdr); 2563029d105eSJ. Bruce Fields } 2564029d105eSJ. Bruce Fields 2565029d105eSJ. Bruce Fields /* 25661da177e4SLinus Torvalds * Encode a WRITE request 25671da177e4SLinus Torvalds */ 25689f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 2569fcc85819SChristoph Hellwig const void *data) 25701da177e4SLinus Torvalds { 2571fcc85819SChristoph Hellwig const struct nfs_pgio_args *args = data; 25721da177e4SLinus Torvalds struct compound_hdr hdr = { 257366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25741da177e4SLinus Torvalds }; 25751da177e4SLinus Torvalds 25769f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25779f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25789f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25799f06c719SChuck Lever encode_write(xdr, args, &hdr); 25804f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25817ffd1064SFred Isaman if (args->bitmask) 25829f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2583d017931cSAndy Adamson encode_nops(&hdr); 25841da177e4SLinus Torvalds } 25851da177e4SLinus Torvalds 25861da177e4SLinus Torvalds /* 25871da177e4SLinus Torvalds * a COMMIT request 25881da177e4SLinus Torvalds */ 25899f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 2590fcc85819SChristoph Hellwig const void *data) 25911da177e4SLinus Torvalds { 2592fcc85819SChristoph Hellwig const struct nfs_commitargs *args = data; 25931da177e4SLinus Torvalds struct compound_hdr hdr = { 259466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25951da177e4SLinus Torvalds }; 25961da177e4SLinus Torvalds 25979f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25989f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25999f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26009f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2601d017931cSAndy Adamson encode_nops(&hdr); 26021da177e4SLinus Torvalds } 26031da177e4SLinus Torvalds 26041da177e4SLinus Torvalds /* 26051da177e4SLinus Torvalds * FSINFO request 26061da177e4SLinus Torvalds */ 26079f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 2608fcc85819SChristoph Hellwig const void *data) 26091da177e4SLinus Torvalds { 2610fcc85819SChristoph Hellwig const struct nfs4_fsinfo_arg *args = data; 26111da177e4SLinus Torvalds struct compound_hdr hdr = { 261266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26131da177e4SLinus Torvalds }; 26141da177e4SLinus Torvalds 26159f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26169f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26179f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26189f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2619d017931cSAndy Adamson encode_nops(&hdr); 26201da177e4SLinus Torvalds } 26211da177e4SLinus Torvalds 26221da177e4SLinus Torvalds /* 26231da177e4SLinus Torvalds * a PATHCONF request 26241da177e4SLinus Torvalds */ 26259f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 2626fcc85819SChristoph Hellwig const void *data) 26271da177e4SLinus Torvalds { 2628fcc85819SChristoph Hellwig const struct nfs4_pathconf_arg *args = data; 26291da177e4SLinus Torvalds struct compound_hdr hdr = { 263066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26311da177e4SLinus Torvalds }; 26321da177e4SLinus Torvalds 26339f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26349f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26359f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 263637c88763STrond Myklebust encode_getattr(xdr, nfs4_pathconf_bitmap, args->bitmask, 263737c88763STrond Myklebust ARRAY_SIZE(nfs4_pathconf_bitmap), &hdr); 2638d017931cSAndy Adamson encode_nops(&hdr); 26391da177e4SLinus Torvalds } 26401da177e4SLinus Torvalds 26411da177e4SLinus Torvalds /* 26421da177e4SLinus Torvalds * a STATFS request 26431da177e4SLinus Torvalds */ 26449f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 2645fcc85819SChristoph Hellwig const void *data) 26461da177e4SLinus Torvalds { 2647fcc85819SChristoph Hellwig const struct nfs4_statfs_arg *args = data; 26481da177e4SLinus Torvalds struct compound_hdr hdr = { 264966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26501da177e4SLinus Torvalds }; 26511da177e4SLinus Torvalds 26529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26539f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26549f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 265537c88763STrond Myklebust encode_getattr(xdr, nfs4_statfs_bitmap, args->bitmask, 265637c88763STrond Myklebust ARRAY_SIZE(nfs4_statfs_bitmap), &hdr); 2657d017931cSAndy Adamson encode_nops(&hdr); 26581da177e4SLinus Torvalds } 26591da177e4SLinus Torvalds 26601da177e4SLinus Torvalds /* 26611da177e4SLinus Torvalds * GETATTR_BITMAP request 26621da177e4SLinus Torvalds */ 26639f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 26649f06c719SChuck Lever struct xdr_stream *xdr, 2665fcc85819SChristoph Hellwig const void *data) 26661da177e4SLinus Torvalds { 2667fcc85819SChristoph Hellwig const struct nfs4_server_caps_arg *args = data; 26688c61282fSKinglong Mee const u32 *bitmask = args->bitmask; 26691da177e4SLinus Torvalds struct compound_hdr hdr = { 267066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26711da177e4SLinus Torvalds }; 26721da177e4SLinus Torvalds 26739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26749f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26759f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 267637c88763STrond Myklebust encode_getattr(xdr, bitmask, NULL, 3, &hdr); 2677d017931cSAndy Adamson encode_nops(&hdr); 26781da177e4SLinus Torvalds } 26791da177e4SLinus Torvalds 26801da177e4SLinus Torvalds /* 26811da177e4SLinus Torvalds * a RENEW request 26821da177e4SLinus Torvalds */ 26839f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 2684fcc85819SChristoph Hellwig const void *data) 2685fcc85819SChristoph Hellwig 26861da177e4SLinus Torvalds { 2687fcc85819SChristoph Hellwig const struct nfs_client *clp = data; 26881da177e4SLinus Torvalds struct compound_hdr hdr = { 2689d017931cSAndy Adamson .nops = 0, 26901da177e4SLinus Torvalds }; 26911da177e4SLinus Torvalds 26929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2693bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2694d017931cSAndy Adamson encode_nops(&hdr); 26951da177e4SLinus Torvalds } 26961da177e4SLinus Torvalds 26971da177e4SLinus Torvalds /* 26981da177e4SLinus Torvalds * a SETCLIENTID request 26991da177e4SLinus Torvalds */ 27009f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 27019f06c719SChuck Lever struct xdr_stream *xdr, 2702fcc85819SChristoph Hellwig const void *data) 27031da177e4SLinus Torvalds { 2704fcc85819SChristoph Hellwig const struct nfs4_setclientid *sc = data; 27051da177e4SLinus Torvalds struct compound_hdr hdr = { 2706d017931cSAndy Adamson .nops = 0, 27071da177e4SLinus Torvalds }; 27081da177e4SLinus Torvalds 27099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27109f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2711d017931cSAndy Adamson encode_nops(&hdr); 27121da177e4SLinus Torvalds } 27131da177e4SLinus Torvalds 27141da177e4SLinus Torvalds /* 27151da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 27161da177e4SLinus Torvalds */ 27179f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 27189f06c719SChuck Lever struct xdr_stream *xdr, 2719fcc85819SChristoph Hellwig const void *data) 27201da177e4SLinus Torvalds { 2721fcc85819SChristoph Hellwig const struct nfs4_setclientid_res *arg = data; 27221da177e4SLinus Torvalds struct compound_hdr hdr = { 2723d017931cSAndy Adamson .nops = 0, 27241da177e4SLinus Torvalds }; 27251da177e4SLinus Torvalds 27269f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27279f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 2728d017931cSAndy Adamson encode_nops(&hdr); 27291da177e4SLinus Torvalds } 27301da177e4SLinus Torvalds 27311da177e4SLinus Torvalds /* 27321da177e4SLinus Torvalds * DELEGRETURN request 27331da177e4SLinus Torvalds */ 27349f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 27359f06c719SChuck Lever struct xdr_stream *xdr, 2736fcc85819SChristoph Hellwig const void *data) 27371da177e4SLinus Torvalds { 2738fcc85819SChristoph Hellwig const struct nfs4_delegreturnargs *args = data; 27391da177e4SLinus Torvalds struct compound_hdr hdr = { 274066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27411da177e4SLinus Torvalds }; 27421da177e4SLinus Torvalds 27439f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27449f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27459f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 2746586f1c39STrond Myklebust if (args->lr_args) 2747586f1c39STrond Myklebust encode_layoutreturn(xdr, args->lr_args, &hdr); 27488ac2b422STrond Myklebust if (args->bitmask) 27499f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2750e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2751d017931cSAndy Adamson encode_nops(&hdr); 27521da177e4SLinus Torvalds } 27531da177e4SLinus Torvalds 27541da177e4SLinus Torvalds /* 2755683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2756683b57b4STrond Myklebust */ 27579f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 27589f06c719SChuck Lever struct xdr_stream *xdr, 2759fcc85819SChristoph Hellwig const void *data) 2760683b57b4STrond Myklebust { 2761fcc85819SChristoph Hellwig const struct nfs4_fs_locations_arg *args = data; 2762683b57b4STrond Myklebust struct compound_hdr hdr = { 276366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2764683b57b4STrond Myklebust }; 276528f56694SBenny Halevy uint32_t replen; 2766683b57b4STrond Myklebust 27679f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27689f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 2769b03d735bSChuck Lever if (args->migration) { 2770b03d735bSChuck Lever encode_putfh(xdr, args->fh, &hdr); 2771b03d735bSChuck Lever replen = hdr.replen; 2772b03d735bSChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2773b03d735bSChuck Lever if (args->renew) 2774b03d735bSChuck Lever encode_renew(xdr, args->clientid, &hdr); 2775b03d735bSChuck Lever } else { 27769f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 27779f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 2778b03d735bSChuck Lever replen = hdr.replen; 27799f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2780b03d735bSChuck Lever } 2781cf8cdbe5SAndy Adamson 2782b03d735bSChuck Lever /* Set up reply kvec to capture returned fs_locations array. */ 2783fcc85819SChristoph Hellwig xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2784fcc85819SChristoph Hellwig (struct page **)&args->page, 0, PAGE_SIZE); 2785d017931cSAndy Adamson encode_nops(&hdr); 2786683b57b4STrond Myklebust } 2787683b57b4STrond Myklebust 27885a5ea0d4SBryan Schumaker /* 27895a5ea0d4SBryan Schumaker * Encode SECINFO request 27905a5ea0d4SBryan Schumaker */ 27915a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27925a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 2793fcc85819SChristoph Hellwig const void *data) 27945a5ea0d4SBryan Schumaker { 2795fcc85819SChristoph Hellwig const struct nfs4_secinfo_arg *args = data; 27965a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27975a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27985a5ea0d4SBryan Schumaker }; 27995a5ea0d4SBryan Schumaker 28005a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 28015a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 28025a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 28035a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 28045a5ea0d4SBryan Schumaker encode_nops(&hdr); 28055a5ea0d4SBryan Schumaker } 28065a5ea0d4SBryan Schumaker 280744c99933SChuck Lever /* 280844c99933SChuck Lever * Encode FSID_PRESENT request 280944c99933SChuck Lever */ 281044c99933SChuck Lever static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req, 281144c99933SChuck Lever struct xdr_stream *xdr, 2812fcc85819SChristoph Hellwig const void *data) 281344c99933SChuck Lever { 2814fcc85819SChristoph Hellwig const struct nfs4_fsid_present_arg *args = data; 281544c99933SChuck Lever struct compound_hdr hdr = { 281644c99933SChuck Lever .minorversion = nfs4_xdr_minorversion(&args->seq_args), 281744c99933SChuck Lever }; 281844c99933SChuck Lever 281944c99933SChuck Lever encode_compound_hdr(xdr, req, &hdr); 282044c99933SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 282144c99933SChuck Lever encode_putfh(xdr, args->fh, &hdr); 282244c99933SChuck Lever encode_getfh(xdr, &hdr); 282344c99933SChuck Lever if (args->renew) 282444c99933SChuck Lever encode_renew(xdr, args->clientid, &hdr); 282544c99933SChuck Lever encode_nops(&hdr); 282644c99933SChuck Lever } 282744c99933SChuck Lever 282899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 282999fe60d0SBenny Halevy /* 28307c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 28317c44f1aeSWeston Andros Adamson */ 28327c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 28337c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 2834fcc85819SChristoph Hellwig const void *data) 28357c44f1aeSWeston Andros Adamson { 2836fcc85819SChristoph Hellwig const struct nfs41_bind_conn_to_session_args *args = data; 28377c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 283871a097c6STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 28397c44f1aeSWeston Andros Adamson }; 28407c44f1aeSWeston Andros Adamson 28417c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 284271a097c6STrond Myklebust encode_bind_conn_to_session(xdr, args, &hdr); 28437c44f1aeSWeston Andros Adamson encode_nops(&hdr); 28447c44f1aeSWeston Andros Adamson } 28457c44f1aeSWeston Andros Adamson 28467c44f1aeSWeston Andros Adamson /* 284799fe60d0SBenny Halevy * EXCHANGE_ID request 284899fe60d0SBenny Halevy */ 28499f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 28509f06c719SChuck Lever struct xdr_stream *xdr, 2851fcc85819SChristoph Hellwig const void *data) 285299fe60d0SBenny Halevy { 2853fcc85819SChristoph Hellwig const struct nfs41_exchange_id_args *args = data; 285499fe60d0SBenny Halevy struct compound_hdr hdr = { 2855a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 285699fe60d0SBenny Halevy }; 285799fe60d0SBenny Halevy 28589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28599f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 286099fe60d0SBenny Halevy encode_nops(&hdr); 286199fe60d0SBenny Halevy } 28622050f0ccSAndy Adamson 28632050f0ccSAndy Adamson /* 2864fc931582SAndy Adamson * a CREATE_SESSION request 2865fc931582SAndy Adamson */ 28669f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 28679f06c719SChuck Lever struct xdr_stream *xdr, 2868fcc85819SChristoph Hellwig const void *data) 2869fc931582SAndy Adamson { 2870fcc85819SChristoph Hellwig const struct nfs41_create_session_args *args = data; 2871fc931582SAndy Adamson struct compound_hdr hdr = { 2872a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2873fc931582SAndy Adamson }; 2874fc931582SAndy Adamson 28759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28769f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2877fc931582SAndy Adamson encode_nops(&hdr); 2878fc931582SAndy Adamson } 2879fc931582SAndy Adamson 2880fc931582SAndy Adamson /* 28810f3e66c6SAndy Adamson * a DESTROY_SESSION request 28820f3e66c6SAndy Adamson */ 28839f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 28849f06c719SChuck Lever struct xdr_stream *xdr, 2885fcc85819SChristoph Hellwig const void *data) 28860f3e66c6SAndy Adamson { 2887fcc85819SChristoph Hellwig const struct nfs4_session *session = data; 28880f3e66c6SAndy Adamson struct compound_hdr hdr = { 2889a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 28900f3e66c6SAndy Adamson }; 28910f3e66c6SAndy Adamson 28929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28939f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28940f3e66c6SAndy Adamson encode_nops(&hdr); 28950f3e66c6SAndy Adamson } 28960f3e66c6SAndy Adamson 28970f3e66c6SAndy Adamson /* 289866245539STrond Myklebust * a DESTROY_CLIENTID request 289966245539STrond Myklebust */ 290066245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 290166245539STrond Myklebust struct xdr_stream *xdr, 2902fcc85819SChristoph Hellwig const void *data) 290366245539STrond Myklebust { 2904fcc85819SChristoph Hellwig const struct nfs_client *clp = data; 290566245539STrond Myklebust struct compound_hdr hdr = { 290666245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 290766245539STrond Myklebust }; 290866245539STrond Myklebust 290966245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 291066245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 291166245539STrond Myklebust encode_nops(&hdr); 291266245539STrond Myklebust } 291366245539STrond Myklebust 291466245539STrond Myklebust /* 2915fc01cea9SAndy Adamson * a SEQUENCE request 2916fc01cea9SAndy Adamson */ 29179f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2918fcc85819SChristoph Hellwig const void *data) 2919fc01cea9SAndy Adamson { 2920fcc85819SChristoph Hellwig const struct nfs4_sequence_args *args = data; 2921fc01cea9SAndy Adamson struct compound_hdr hdr = { 2922fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2923fc01cea9SAndy Adamson }; 2924fc01cea9SAndy Adamson 29259f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29269f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2927fc01cea9SAndy Adamson encode_nops(&hdr); 2928fc01cea9SAndy Adamson } 2929fc01cea9SAndy Adamson 2930fc01cea9SAndy Adamson /* 29312050f0ccSAndy Adamson * a GET_LEASE_TIME request 29322050f0ccSAndy Adamson */ 29339f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 29349f06c719SChuck Lever struct xdr_stream *xdr, 2935fcc85819SChristoph Hellwig const void *data) 29362050f0ccSAndy Adamson { 2937fcc85819SChristoph Hellwig const struct nfs4_get_lease_time_args *args = data; 29382050f0ccSAndy Adamson struct compound_hdr hdr = { 29392050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 29402050f0ccSAndy Adamson }; 2941dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 29422050f0ccSAndy Adamson 29439f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29449f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 29459f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 29469f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 29472050f0ccSAndy Adamson encode_nops(&hdr); 29482050f0ccSAndy Adamson } 294918019753SRicardo Labiaga 295018019753SRicardo Labiaga /* 295118019753SRicardo Labiaga * a RECLAIM_COMPLETE request 295218019753SRicardo Labiaga */ 29539f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 29549f06c719SChuck Lever struct xdr_stream *xdr, 2955fcc85819SChristoph Hellwig const void *data) 295618019753SRicardo Labiaga { 2957fcc85819SChristoph Hellwig const struct nfs41_reclaim_complete_args *args = data; 295818019753SRicardo Labiaga struct compound_hdr hdr = { 295918019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 296018019753SRicardo Labiaga }; 296118019753SRicardo Labiaga 29629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29649f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 296518019753SRicardo Labiaga encode_nops(&hdr); 296618019753SRicardo Labiaga } 296718019753SRicardo Labiaga 2968b1f69b75SAndy Adamson /* 2969b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2970b1f69b75SAndy Adamson */ 29719f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 29729f06c719SChuck Lever struct xdr_stream *xdr, 2973fcc85819SChristoph Hellwig const void *data) 2974b1f69b75SAndy Adamson { 2975fcc85819SChristoph Hellwig const struct nfs4_getdeviceinfo_args *args = data; 2976b1f69b75SAndy Adamson struct compound_hdr hdr = { 2977b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2978b1f69b75SAndy Adamson }; 2979b1f69b75SAndy Adamson 29809f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29819f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29829f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2983b1f69b75SAndy Adamson 2984b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2985b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2986b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2987b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2988b1f69b75SAndy Adamson args->pdev->pglen); 2989b1f69b75SAndy Adamson 2990b1f69b75SAndy Adamson encode_nops(&hdr); 2991b1f69b75SAndy Adamson } 2992b1f69b75SAndy Adamson 2993b1f69b75SAndy Adamson /* 2994b1f69b75SAndy Adamson * Encode LAYOUTGET request 2995b1f69b75SAndy Adamson */ 29969f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29979f06c719SChuck Lever struct xdr_stream *xdr, 2998fcc85819SChristoph Hellwig const void *data) 2999b1f69b75SAndy Adamson { 3000fcc85819SChristoph Hellwig const struct nfs4_layoutget_args *args = data; 3001b1f69b75SAndy Adamson struct compound_hdr hdr = { 3002b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3003b1f69b75SAndy Adamson }; 3004b1f69b75SAndy Adamson 30059f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 30069f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 30079f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 30089f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 300935124a09SWeston Andros Adamson 301035124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 301135124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 301235124a09SWeston Andros Adamson 3013b1f69b75SAndy Adamson encode_nops(&hdr); 3014b1f69b75SAndy Adamson } 3015863a3c6cSAndy Adamson 3016863a3c6cSAndy Adamson /* 3017863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 3018863a3c6cSAndy Adamson */ 3019cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 3020863a3c6cSAndy Adamson struct xdr_stream *xdr, 3021fcc85819SChristoph Hellwig const void *priv) 3022863a3c6cSAndy Adamson { 3023fcc85819SChristoph Hellwig const struct nfs4_layoutcommit_args *args = priv; 3024ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 3025ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 3026863a3c6cSAndy Adamson struct compound_hdr hdr = { 3027863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3028863a3c6cSAndy Adamson }; 3029863a3c6cSAndy Adamson 3030863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 3031863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 3032863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 3033ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 3034863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 3035863a3c6cSAndy Adamson encode_nops(&hdr); 3036cbe82603SBenny Halevy } 3037cbe82603SBenny Halevy 3038cbe82603SBenny Halevy /* 3039cbe82603SBenny Halevy * Encode LAYOUTRETURN request 3040cbe82603SBenny Halevy */ 3041cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 3042cbe82603SBenny Halevy struct xdr_stream *xdr, 3043fcc85819SChristoph Hellwig const void *data) 3044cbe82603SBenny Halevy { 3045fcc85819SChristoph Hellwig const struct nfs4_layoutreturn_args *args = data; 3046cbe82603SBenny Halevy struct compound_hdr hdr = { 3047cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3048cbe82603SBenny Halevy }; 3049cbe82603SBenny Halevy 3050cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 3051cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 3052cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 3053cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 3054cbe82603SBenny Halevy encode_nops(&hdr); 3055863a3c6cSAndy Adamson } 3056fca78d6dSBryan Schumaker 3057fca78d6dSBryan Schumaker /* 3058fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 3059fca78d6dSBryan Schumaker */ 3060fcc85819SChristoph Hellwig static void nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 3061fca78d6dSBryan Schumaker struct xdr_stream *xdr, 3062fcc85819SChristoph Hellwig const void *data) 3063fca78d6dSBryan Schumaker { 3064fcc85819SChristoph Hellwig const struct nfs41_secinfo_no_name_args *args = data; 3065fca78d6dSBryan Schumaker struct compound_hdr hdr = { 3066fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3067fca78d6dSBryan Schumaker }; 3068fca78d6dSBryan Schumaker 3069fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 3070fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 3071fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 3072fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 3073fca78d6dSBryan Schumaker encode_nops(&hdr); 3074fca78d6dSBryan Schumaker } 30757d974794SBryan Schumaker 30767d974794SBryan Schumaker /* 30777d974794SBryan Schumaker * Encode TEST_STATEID request 30787d974794SBryan Schumaker */ 30797d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 30807d974794SBryan Schumaker struct xdr_stream *xdr, 3081fcc85819SChristoph Hellwig const void *data) 30827d974794SBryan Schumaker { 3083fcc85819SChristoph Hellwig const struct nfs41_test_stateid_args *args = data; 30847d974794SBryan Schumaker struct compound_hdr hdr = { 30857d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30867d974794SBryan Schumaker }; 30877d974794SBryan Schumaker 30887d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30897d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30907d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 30917d974794SBryan Schumaker encode_nops(&hdr); 30927d974794SBryan Schumaker } 30939aeda35fSBryan Schumaker 30949aeda35fSBryan Schumaker /* 30959aeda35fSBryan Schumaker * Encode FREE_STATEID request 30969aeda35fSBryan Schumaker */ 30979aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 30989aeda35fSBryan Schumaker struct xdr_stream *xdr, 3099fcc85819SChristoph Hellwig const void *data) 31009aeda35fSBryan Schumaker { 3101fcc85819SChristoph Hellwig const struct nfs41_free_stateid_args *args = data; 31029aeda35fSBryan Schumaker struct compound_hdr hdr = { 31039aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 31049aeda35fSBryan Schumaker }; 31059aeda35fSBryan Schumaker 31069aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 31079aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 31089aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 31099aeda35fSBryan Schumaker encode_nops(&hdr); 31109aeda35fSBryan Schumaker } 311199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 311299fe60d0SBenny Halevy 3113686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3114686841b3SBenny Halevy { 3115686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3116686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3117686841b3SBenny Halevy func, xdr->end - xdr->p); 3118686841b3SBenny Halevy } 31191da177e4SLinus Torvalds 3120683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 31211da177e4SLinus Torvalds { 31226da59ce2STrond Myklebust ssize_t ret = xdr_stream_decode_opaque_inline(xdr, (void **)string, 31236da59ce2STrond Myklebust NFS4_OPAQUE_LIMIT); 31246da59ce2STrond Myklebust if (unlikely(ret < 0)) { 31256da59ce2STrond Myklebust if (ret == -EBADMSG) 3126c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3127c0eae66eSBenny Halevy return -EIO; 31281da177e4SLinus Torvalds } 31296da59ce2STrond Myklebust *len = ret; 31306da59ce2STrond Myklebust return 0; 31316da59ce2STrond Myklebust } 31321da177e4SLinus Torvalds 31331da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 31341da177e4SLinus Torvalds { 31358687b63aSAl Viro __be32 *p; 31361da177e4SLinus Torvalds 3137c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3138c0eae66eSBenny Halevy if (unlikely(!p)) 3139c0eae66eSBenny Halevy goto out_overflow; 31406f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3141cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 31421da177e4SLinus Torvalds 3143c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3144c0eae66eSBenny Halevy if (unlikely(!p)) 3145c0eae66eSBenny Halevy goto out_overflow; 31461da177e4SLinus Torvalds hdr->tag = (char *)p; 31471da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3148cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3149aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3150aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 31511da177e4SLinus Torvalds return 0; 3152c0eae66eSBenny Halevy out_overflow: 3153c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3154c0eae66eSBenny Halevy return -EIO; 31551da177e4SLinus Torvalds } 31561da177e4SLinus Torvalds 3157c7848f69STrond Myklebust static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected, 3158c7848f69STrond Myklebust int *nfs_retval) 31591da177e4SLinus Torvalds { 31608687b63aSAl Viro __be32 *p; 31611da177e4SLinus Torvalds uint32_t opnum; 31621da177e4SLinus Torvalds int32_t nfserr; 31631da177e4SLinus Torvalds 3164c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3165c0eae66eSBenny Halevy if (unlikely(!p)) 3166c0eae66eSBenny Halevy goto out_overflow; 31676f723f77SBenny Halevy opnum = be32_to_cpup(p++); 3168c7848f69STrond Myklebust if (unlikely(opnum != expected)) 3169c7848f69STrond Myklebust goto out_bad_operation; 3170c7848f69STrond Myklebust nfserr = be32_to_cpup(p); 3171c7848f69STrond Myklebust if (nfserr == NFS_OK) 3172c7848f69STrond Myklebust *nfs_retval = 0; 3173c7848f69STrond Myklebust else 3174c7848f69STrond Myklebust *nfs_retval = nfs4_stat_to_errno(nfserr); 3175c7848f69STrond Myklebust return true; 3176c7848f69STrond Myklebust out_bad_operation: 3177fe82a183SChuck Lever dprintk("nfs: Server returned operation" 31781da177e4SLinus Torvalds " %d but we issued a request for %d\n", 31791da177e4SLinus Torvalds opnum, expected); 3180c7848f69STrond Myklebust *nfs_retval = -EREMOTEIO; 3181c7848f69STrond Myklebust return false; 3182c0eae66eSBenny Halevy out_overflow: 3183c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3184c7848f69STrond Myklebust *nfs_retval = -EIO; 3185c7848f69STrond Myklebust return false; 3186c7848f69STrond Myklebust } 3187c7848f69STrond Myklebust 3188c7848f69STrond Myklebust static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 3189c7848f69STrond Myklebust { 3190c7848f69STrond Myklebust int retval; 3191c7848f69STrond Myklebust 3192c7848f69STrond Myklebust __decode_op_hdr(xdr, expected, &retval); 3193c7848f69STrond Myklebust return retval; 31941da177e4SLinus Torvalds } 31951da177e4SLinus Torvalds 31961da177e4SLinus Torvalds /* Dummy routine */ 31971bbe60ffSTrond Myklebust static int decode_ace(struct xdr_stream *xdr, void *ace) 31981da177e4SLinus Torvalds { 31998687b63aSAl Viro __be32 *p; 3200683b57b4STrond Myklebust unsigned int strlen; 32011da177e4SLinus Torvalds char *str; 32021da177e4SLinus Torvalds 3203c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3204c0eae66eSBenny Halevy if (likely(p)) 32051da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3206c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3207c0eae66eSBenny Halevy return -EIO; 32081da177e4SLinus Torvalds } 32091da177e4SLinus Torvalds 321037c88763STrond Myklebust static ssize_t 321137c88763STrond Myklebust decode_bitmap4(struct xdr_stream *xdr, uint32_t *bitmap, size_t sz) 32121da177e4SLinus Torvalds { 321337c88763STrond Myklebust ssize_t ret; 32141da177e4SLinus Torvalds 321537c88763STrond Myklebust ret = xdr_stream_decode_uint32_array(xdr, bitmap, sz); 321637c88763STrond Myklebust if (likely(ret >= 0)) 321737c88763STrond Myklebust return ret; 321837c88763STrond Myklebust if (ret == -EMSGSIZE) 321937c88763STrond Myklebust return sz; 3220c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3221c0eae66eSBenny Halevy return -EIO; 32221da177e4SLinus Torvalds } 32231da177e4SLinus Torvalds 322437c88763STrond Myklebust static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 322537c88763STrond Myklebust { 322637c88763STrond Myklebust ssize_t ret; 322737c88763STrond Myklebust ret = decode_bitmap4(xdr, bitmap, 3); 322837c88763STrond Myklebust return ret < 0 ? ret : 0; 322937c88763STrond Myklebust } 323037c88763STrond Myklebust 3231256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 32321da177e4SLinus Torvalds { 32338687b63aSAl Viro __be32 *p; 32341da177e4SLinus Torvalds 3235c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3236c0eae66eSBenny Halevy if (unlikely(!p)) 3237c0eae66eSBenny Halevy goto out_overflow; 3238cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3239256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 32401da177e4SLinus Torvalds return 0; 3241c0eae66eSBenny Halevy out_overflow: 3242c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3243c0eae66eSBenny Halevy return -EIO; 32441da177e4SLinus Torvalds } 32451da177e4SLinus Torvalds 32461da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 32471da177e4SLinus Torvalds { 32481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 32493388bff5SRoman Borisov int ret; 32503388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 32513388bff5SRoman Borisov if (unlikely(ret < 0)) 32523388bff5SRoman Borisov return ret; 32531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 32541da177e4SLinus Torvalds } else 3255dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3256dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3257dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 32581da177e4SLinus Torvalds return 0; 32591da177e4SLinus Torvalds } 32601da177e4SLinus Torvalds 32611da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 32621da177e4SLinus Torvalds { 32638687b63aSAl Viro __be32 *p; 3264409924e4STrond Myklebust int ret = 0; 32651da177e4SLinus Torvalds 32661da177e4SLinus Torvalds *type = 0; 32671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 32681da177e4SLinus Torvalds return -EIO; 32691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3270c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3271c0eae66eSBenny Halevy if (unlikely(!p)) 3272c0eae66eSBenny Halevy goto out_overflow; 3273cccddf4fSBenny Halevy *type = be32_to_cpup(p); 32741da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 32753110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 32761da177e4SLinus Torvalds return -EIO; 32771da177e4SLinus Torvalds } 32781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3279409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 32801da177e4SLinus Torvalds } 3281bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3282409924e4STrond Myklebust return ret; 3283c0eae66eSBenny Halevy out_overflow: 3284c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3285c0eae66eSBenny Halevy return -EIO; 32861da177e4SLinus Torvalds } 32871da177e4SLinus Torvalds 3288264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3289264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3290264e6351SChuck Lever { 3291264e6351SChuck Lever __be32 *p; 3292264e6351SChuck Lever 3293264e6351SChuck Lever *type = 0; 3294264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3295264e6351SChuck Lever return -EIO; 3296264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3297264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3298264e6351SChuck Lever if (unlikely(!p)) 3299264e6351SChuck Lever goto out_overflow; 3300264e6351SChuck Lever *type = be32_to_cpup(p); 3301264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3302264e6351SChuck Lever } 3303264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3304264e6351SChuck Lever return 0; 3305264e6351SChuck Lever out_overflow: 3306264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3307264e6351SChuck Lever return -EIO; 3308264e6351SChuck Lever } 3309264e6351SChuck Lever 33101da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 33111da177e4SLinus Torvalds { 33128687b63aSAl Viro __be32 *p; 3313409924e4STrond Myklebust int ret = 0; 33141da177e4SLinus Torvalds 33151da177e4SLinus Torvalds *change = 0; 33161da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 33171da177e4SLinus Torvalds return -EIO; 33181da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3319c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3320c0eae66eSBenny Halevy if (unlikely(!p)) 3321c0eae66eSBenny Halevy goto out_overflow; 3322cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 33231da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3324409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 33251da177e4SLinus Torvalds } 33263110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 33271da177e4SLinus Torvalds (unsigned long long)*change); 3328409924e4STrond Myklebust return ret; 3329c0eae66eSBenny Halevy out_overflow: 3330c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3331c0eae66eSBenny Halevy return -EIO; 33321da177e4SLinus Torvalds } 33331da177e4SLinus Torvalds 33341da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 33351da177e4SLinus Torvalds { 33368687b63aSAl Viro __be32 *p; 3337409924e4STrond Myklebust int ret = 0; 33381da177e4SLinus Torvalds 33391da177e4SLinus Torvalds *size = 0; 33401da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 33411da177e4SLinus Torvalds return -EIO; 33421da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3343c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3344c0eae66eSBenny Halevy if (unlikely(!p)) 3345c0eae66eSBenny Halevy goto out_overflow; 3346cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 33471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3348409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 33491da177e4SLinus Torvalds } 33503110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3351409924e4STrond Myklebust return ret; 3352c0eae66eSBenny Halevy out_overflow: 3353c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3354c0eae66eSBenny Halevy return -EIO; 33551da177e4SLinus Torvalds } 33561da177e4SLinus Torvalds 33571da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33581da177e4SLinus Torvalds { 33598687b63aSAl Viro __be32 *p; 33601da177e4SLinus Torvalds 33611da177e4SLinus Torvalds *res = 0; 33621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 33631da177e4SLinus Torvalds return -EIO; 33641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3365c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3366c0eae66eSBenny Halevy if (unlikely(!p)) 3367c0eae66eSBenny Halevy goto out_overflow; 3368cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33691da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 33701da177e4SLinus Torvalds } 33713110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 33721da177e4SLinus Torvalds return 0; 3373c0eae66eSBenny Halevy out_overflow: 3374c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3375c0eae66eSBenny Halevy return -EIO; 33761da177e4SLinus Torvalds } 33771da177e4SLinus Torvalds 33781da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33791da177e4SLinus Torvalds { 33808687b63aSAl Viro __be32 *p; 33811da177e4SLinus Torvalds 33821da177e4SLinus Torvalds *res = 0; 33831da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 33841da177e4SLinus Torvalds return -EIO; 33851da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3386c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3387c0eae66eSBenny Halevy if (unlikely(!p)) 3388c0eae66eSBenny Halevy goto out_overflow; 3389cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33901da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 33911da177e4SLinus Torvalds } 33923110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 33931da177e4SLinus Torvalds return 0; 3394c0eae66eSBenny Halevy out_overflow: 3395c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3396c0eae66eSBenny Halevy return -EIO; 33971da177e4SLinus Torvalds } 33981da177e4SLinus Torvalds 33998b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 34001da177e4SLinus Torvalds { 34018687b63aSAl Viro __be32 *p; 3402409924e4STrond Myklebust int ret = 0; 34031da177e4SLinus Torvalds 34041da177e4SLinus Torvalds fsid->major = 0; 34051da177e4SLinus Torvalds fsid->minor = 0; 34061da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 34071da177e4SLinus Torvalds return -EIO; 34081da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3409c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3410c0eae66eSBenny Halevy if (unlikely(!p)) 3411c0eae66eSBenny Halevy goto out_overflow; 34123ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3413cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 34141da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3415409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 34161da177e4SLinus Torvalds } 34173110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 34181da177e4SLinus Torvalds (unsigned long long)fsid->major, 34191da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3420409924e4STrond Myklebust return ret; 3421c0eae66eSBenny Halevy out_overflow: 3422c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3423c0eae66eSBenny Halevy return -EIO; 34241da177e4SLinus Torvalds } 34251da177e4SLinus Torvalds 34261da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34271da177e4SLinus Torvalds { 34288687b63aSAl Viro __be32 *p; 34291da177e4SLinus Torvalds 34301da177e4SLinus Torvalds *res = 60; 34311da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 34321da177e4SLinus Torvalds return -EIO; 34331da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3434c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3435c0eae66eSBenny Halevy if (unlikely(!p)) 3436c0eae66eSBenny Halevy goto out_overflow; 3437cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 34391da177e4SLinus Torvalds } 34403110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 34411da177e4SLinus Torvalds return 0; 3442c0eae66eSBenny Halevy out_overflow: 3443c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3444c0eae66eSBenny Halevy return -EIO; 34451da177e4SLinus Torvalds } 34461da177e4SLinus Torvalds 3447ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3448ae42c70aSBryan Schumaker { 3449ae42c70aSBryan Schumaker __be32 *p; 3450ae42c70aSBryan Schumaker 3451ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3452ae42c70aSBryan Schumaker return -EIO; 3453ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3454ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3455ae42c70aSBryan Schumaker if (unlikely(!p)) 3456ae42c70aSBryan Schumaker goto out_overflow; 3457ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3458ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3459ae42c70aSBryan Schumaker } 3460ae42c70aSBryan Schumaker return 0; 3461ae42c70aSBryan Schumaker out_overflow: 3462ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3463ae42c70aSBryan Schumaker return -EIO; 3464ae42c70aSBryan Schumaker } 3465ae42c70aSBryan Schumaker 34668c61282fSKinglong Mee static int decode_attr_exclcreat_supported(struct xdr_stream *xdr, 34678c61282fSKinglong Mee uint32_t *bitmap, uint32_t *bitmask) 34688c61282fSKinglong Mee { 34698c61282fSKinglong Mee if (likely(bitmap[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT)) { 34708c61282fSKinglong Mee int ret; 34718c61282fSKinglong Mee ret = decode_attr_bitmap(xdr, bitmask); 34728c61282fSKinglong Mee if (unlikely(ret < 0)) 34738c61282fSKinglong Mee return ret; 34748c61282fSKinglong Mee bitmap[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT; 34758c61282fSKinglong Mee } else 34768c61282fSKinglong Mee bitmask[0] = bitmask[1] = bitmask[2] = 0; 34778c61282fSKinglong Mee dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 34788c61282fSKinglong Mee bitmask[0], bitmask[1], bitmask[2]); 34798c61282fSKinglong Mee return 0; 34808c61282fSKinglong Mee } 34818c61282fSKinglong Mee 3482ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3483ae42c70aSBryan Schumaker { 3484ae42c70aSBryan Schumaker __be32 *p; 3485ae42c70aSBryan Schumaker int len; 3486ae42c70aSBryan Schumaker 34877ad07353STrond Myklebust if (fh != NULL) 3488ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3489ae42c70aSBryan Schumaker 3490ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3491ae42c70aSBryan Schumaker return -EIO; 3492ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3493ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3494ae42c70aSBryan Schumaker if (unlikely(!p)) 3495ae42c70aSBryan Schumaker goto out_overflow; 3496ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3497ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3498ae42c70aSBryan Schumaker return -EIO; 3499ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3500ae42c70aSBryan Schumaker if (unlikely(!p)) 3501ae42c70aSBryan Schumaker goto out_overflow; 35027ad07353STrond Myklebust if (fh != NULL) { 3503ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 35047ad07353STrond Myklebust fh->size = len; 35057ad07353STrond Myklebust } 3506ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3507ae42c70aSBryan Schumaker } 3508ae42c70aSBryan Schumaker return 0; 3509ae42c70aSBryan Schumaker out_overflow: 3510ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3511ae42c70aSBryan Schumaker return -EIO; 3512ae42c70aSBryan Schumaker } 3513ae42c70aSBryan Schumaker 35141da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 35151da177e4SLinus Torvalds { 35168687b63aSAl Viro __be32 *p; 35171da177e4SLinus Torvalds 3518a1800acaSMalahal Naineni *res = 0; 35191da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 35201da177e4SLinus Torvalds return -EIO; 35211da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3522c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3523c0eae66eSBenny Halevy if (unlikely(!p)) 3524c0eae66eSBenny Halevy goto out_overflow; 3525cccddf4fSBenny Halevy *res = be32_to_cpup(p); 35261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 35271da177e4SLinus Torvalds } 35283110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 35291da177e4SLinus Torvalds return 0; 3530c0eae66eSBenny Halevy out_overflow: 3531c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3532c0eae66eSBenny Halevy return -EIO; 35331da177e4SLinus Torvalds } 35341da177e4SLinus Torvalds 35351da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 35361da177e4SLinus Torvalds { 35378687b63aSAl Viro __be32 *p; 3538409924e4STrond Myklebust int ret = 0; 35391da177e4SLinus Torvalds 35401da177e4SLinus Torvalds *fileid = 0; 35411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 35421da177e4SLinus Torvalds return -EIO; 35431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3544c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3545c0eae66eSBenny Halevy if (unlikely(!p)) 3546c0eae66eSBenny Halevy goto out_overflow; 3547cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 35481da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3549409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 35501da177e4SLinus Torvalds } 35513110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3552409924e4STrond Myklebust return ret; 3553c0eae66eSBenny Halevy out_overflow: 3554c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3555c0eae66eSBenny Halevy return -EIO; 35561da177e4SLinus Torvalds } 35571da177e4SLinus Torvalds 355899baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 355999baf625SManoj Naik { 35608687b63aSAl Viro __be32 *p; 3561409924e4STrond Myklebust int ret = 0; 356299baf625SManoj Naik 356399baf625SManoj Naik *fileid = 0; 356499baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 356599baf625SManoj Naik return -EIO; 356699baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3567c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3568c0eae66eSBenny Halevy if (unlikely(!p)) 3569c0eae66eSBenny Halevy goto out_overflow; 3570cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 357199baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 357228331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 357399baf625SManoj Naik } 35743110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3575409924e4STrond Myklebust return ret; 3576c0eae66eSBenny Halevy out_overflow: 3577c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3578c0eae66eSBenny Halevy return -EIO; 357999baf625SManoj Naik } 358099baf625SManoj Naik 35811da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35821da177e4SLinus Torvalds { 35838687b63aSAl Viro __be32 *p; 35841da177e4SLinus Torvalds int status = 0; 35851da177e4SLinus Torvalds 35861da177e4SLinus Torvalds *res = 0; 35871da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 35881da177e4SLinus Torvalds return -EIO; 35891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3590c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3591c0eae66eSBenny Halevy if (unlikely(!p)) 3592c0eae66eSBenny Halevy goto out_overflow; 3593cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35941da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 35951da177e4SLinus Torvalds } 35963110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 35971da177e4SLinus Torvalds return status; 3598c0eae66eSBenny Halevy out_overflow: 3599c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3600c0eae66eSBenny Halevy return -EIO; 36011da177e4SLinus Torvalds } 36021da177e4SLinus Torvalds 36031da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36041da177e4SLinus Torvalds { 36058687b63aSAl Viro __be32 *p; 36061da177e4SLinus Torvalds int status = 0; 36071da177e4SLinus Torvalds 36081da177e4SLinus Torvalds *res = 0; 36091da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 36101da177e4SLinus Torvalds return -EIO; 36111da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3612c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3613c0eae66eSBenny Halevy if (unlikely(!p)) 3614c0eae66eSBenny Halevy goto out_overflow; 3615cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 36171da177e4SLinus Torvalds } 36183110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 36191da177e4SLinus Torvalds return status; 3620c0eae66eSBenny Halevy out_overflow: 3621c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3622c0eae66eSBenny Halevy return -EIO; 36231da177e4SLinus Torvalds } 36241da177e4SLinus Torvalds 36251da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36261da177e4SLinus Torvalds { 36278687b63aSAl Viro __be32 *p; 36281da177e4SLinus Torvalds int status = 0; 36291da177e4SLinus Torvalds 36301da177e4SLinus Torvalds *res = 0; 36311da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 36321da177e4SLinus Torvalds return -EIO; 36331da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3634c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3635c0eae66eSBenny Halevy if (unlikely(!p)) 3636c0eae66eSBenny Halevy goto out_overflow; 3637cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 36391da177e4SLinus Torvalds } 36403110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 36411da177e4SLinus Torvalds return status; 3642c0eae66eSBenny Halevy out_overflow: 3643c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3644c0eae66eSBenny Halevy return -EIO; 36451da177e4SLinus Torvalds } 36461da177e4SLinus Torvalds 36477aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 36487aaa0b3bSManoj Naik { 3649464ad6b1SChuck Lever u32 n; 36508687b63aSAl Viro __be32 *p; 36517aaa0b3bSManoj Naik int status = 0; 36527aaa0b3bSManoj Naik 3653c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3654c0eae66eSBenny Halevy if (unlikely(!p)) 3655c0eae66eSBenny Halevy goto out_overflow; 3656cccddf4fSBenny Halevy n = be32_to_cpup(p); 365733a43f28SAndy Adamson if (n == 0) 365833a43f28SAndy Adamson goto root_path; 365902a2976cSChuck Lever dprintk("pathname4: "); 3660809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3661809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3662809b426cSTrond Myklebust goto out_eio; 3663809b426cSTrond Myklebust } 3664809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 36657aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 36667aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 36677aaa0b3bSManoj Naik if (unlikely(status != 0)) 36687aaa0b3bSManoj Naik goto out_eio; 366995a13f7bSTrond Myklebust ifdebug (XDR) 367002a2976cSChuck Lever pr_cont("%s%.*s ", 367102a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 367202a2976cSChuck Lever component->len, component->data); 36737aaa0b3bSManoj Naik } 36747aaa0b3bSManoj Naik out: 36757aaa0b3bSManoj Naik return status; 367633a43f28SAndy Adamson root_path: 367733a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 367833a43f28SAndy Adamson path->ncomponents = 1; 367933a43f28SAndy Adamson path->components[0].len=0; 368033a43f28SAndy Adamson path->components[0].data=NULL; 368102a2976cSChuck Lever dprintk("pathname4: /\n"); 368233a43f28SAndy Adamson goto out; 36837aaa0b3bSManoj Naik out_eio: 36847aaa0b3bSManoj Naik dprintk(" status %d", status); 36857aaa0b3bSManoj Naik status = -EIO; 36867aaa0b3bSManoj Naik goto out; 3687c0eae66eSBenny Halevy out_overflow: 3688c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3689c0eae66eSBenny Halevy return -EIO; 36907aaa0b3bSManoj Naik } 36917aaa0b3bSManoj Naik 36927aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3693683b57b4STrond Myklebust { 3694683b57b4STrond Myklebust int n; 36958687b63aSAl Viro __be32 *p; 3696683b57b4STrond Myklebust int status = -EIO; 3697683b57b4STrond Myklebust 3698683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3699683b57b4STrond Myklebust goto out; 3700683b57b4STrond Myklebust status = 0; 3701683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3702683b57b4STrond Myklebust goto out; 3703f54423a1SKinglong Mee bitmap[0] &= ~FATTR4_WORD0_FS_LOCATIONS; 37048b7e3f49STrond Myklebust status = -EIO; 37058b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 37068b7e3f49STrond Myklebust if (unlikely(res == NULL)) 37078b7e3f49STrond Myklebust goto out; 370802a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 37097aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3710683b57b4STrond Myklebust if (unlikely(status != 0)) 3711683b57b4STrond Myklebust goto out; 3712c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3713c0eae66eSBenny Halevy if (unlikely(!p)) 3714c0eae66eSBenny Halevy goto out_overflow; 3715cccddf4fSBenny Halevy n = be32_to_cpup(p); 3716683b57b4STrond Myklebust if (n <= 0) 3717683b57b4STrond Myklebust goto out_eio; 3718809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3719464ad6b1SChuck Lever u32 m; 3720809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3721683b57b4STrond Myklebust 3722809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3723809b426cSTrond Myklebust break; 3724809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3725c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3726c0eae66eSBenny Halevy if (unlikely(!p)) 3727c0eae66eSBenny Halevy goto out_overflow; 3728cccddf4fSBenny Halevy m = be32_to_cpup(p); 37297aaa0b3bSManoj Naik 373002a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3731809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3732809b426cSTrond Myklebust struct nfs4_string *server; 3733809b426cSTrond Myklebust 3734809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3735464ad6b1SChuck Lever unsigned int i; 3736464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3737464ad6b1SChuck Lever "returned for location %u\n", 37383110ff80SHarvey Harrison __func__, 3739464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3740464ad6b1SChuck Lever m, res->nlocations); 37417aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 37422e42c3e2STrond Myklebust unsigned int len; 37437aaa0b3bSManoj Naik char *data; 37447aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3745683b57b4STrond Myklebust if (unlikely(status != 0)) 3746683b57b4STrond Myklebust goto out_eio; 37477aaa0b3bSManoj Naik } 3748809b426cSTrond Myklebust break; 37497aaa0b3bSManoj Naik } 3750809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3751809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3752809b426cSTrond Myklebust if (unlikely(status != 0)) 3753809b426cSTrond Myklebust goto out_eio; 3754809b426cSTrond Myklebust dprintk("%s ", server->data); 37557aaa0b3bSManoj Naik } 37567aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 37577aaa0b3bSManoj Naik if (unlikely(status != 0)) 37587aaa0b3bSManoj Naik goto out_eio; 3759683b57b4STrond Myklebust } 3760409924e4STrond Myklebust if (res->nlocations != 0) 376181934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3762683b57b4STrond Myklebust out: 37633110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3764683b57b4STrond Myklebust return status; 3765c0eae66eSBenny Halevy out_overflow: 3766c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3767683b57b4STrond Myklebust out_eio: 3768683b57b4STrond Myklebust status = -EIO; 3769683b57b4STrond Myklebust goto out; 3770683b57b4STrond Myklebust } 3771683b57b4STrond Myklebust 37721da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 37731da177e4SLinus Torvalds { 37748687b63aSAl Viro __be32 *p; 37751da177e4SLinus Torvalds int status = 0; 37761da177e4SLinus Torvalds 37771da177e4SLinus Torvalds *res = 0; 37781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 37791da177e4SLinus Torvalds return -EIO; 37801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3781c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3782c0eae66eSBenny Halevy if (unlikely(!p)) 3783c0eae66eSBenny Halevy goto out_overflow; 3784cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 37851da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 37861da177e4SLinus Torvalds } 37873110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 37881da177e4SLinus Torvalds return status; 3789c0eae66eSBenny Halevy out_overflow: 3790c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3791c0eae66eSBenny Halevy return -EIO; 37921da177e4SLinus Torvalds } 37931da177e4SLinus Torvalds 37941da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 37951da177e4SLinus Torvalds { 37968687b63aSAl Viro __be32 *p; 37971da177e4SLinus Torvalds int status = 0; 37981da177e4SLinus Torvalds 37991da177e4SLinus Torvalds *maxlink = 1; 38001da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 38011da177e4SLinus Torvalds return -EIO; 38021da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3803c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3804c0eae66eSBenny Halevy if (unlikely(!p)) 3805c0eae66eSBenny Halevy goto out_overflow; 3806cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 38071da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 38081da177e4SLinus Torvalds } 38093110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 38101da177e4SLinus Torvalds return status; 3811c0eae66eSBenny Halevy out_overflow: 3812c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3813c0eae66eSBenny Halevy return -EIO; 38141da177e4SLinus Torvalds } 38151da177e4SLinus Torvalds 38161da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 38171da177e4SLinus Torvalds { 38188687b63aSAl Viro __be32 *p; 38191da177e4SLinus Torvalds int status = 0; 38201da177e4SLinus Torvalds 38211da177e4SLinus Torvalds *maxname = 1024; 38221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 38231da177e4SLinus Torvalds return -EIO; 38241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3825c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3826c0eae66eSBenny Halevy if (unlikely(!p)) 3827c0eae66eSBenny Halevy goto out_overflow; 3828cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 38291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 38301da177e4SLinus Torvalds } 38313110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 38321da177e4SLinus Torvalds return status; 3833c0eae66eSBenny Halevy out_overflow: 3834c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3835c0eae66eSBenny Halevy return -EIO; 38361da177e4SLinus Torvalds } 38371da177e4SLinus Torvalds 38381da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 38391da177e4SLinus Torvalds { 38408687b63aSAl Viro __be32 *p; 38411da177e4SLinus Torvalds int status = 0; 38421da177e4SLinus Torvalds 38431da177e4SLinus Torvalds *res = 1024; 38441da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 38451da177e4SLinus Torvalds return -EIO; 38461da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 38471da177e4SLinus Torvalds uint64_t maxread; 3848c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3849c0eae66eSBenny Halevy if (unlikely(!p)) 3850c0eae66eSBenny Halevy goto out_overflow; 3851cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 38521da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 38531da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 38541da177e4SLinus Torvalds *res = (uint32_t)maxread; 38551da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 38561da177e4SLinus Torvalds } 38573110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 38581da177e4SLinus Torvalds return status; 3859c0eae66eSBenny Halevy out_overflow: 3860c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3861c0eae66eSBenny Halevy return -EIO; 38621da177e4SLinus Torvalds } 38631da177e4SLinus Torvalds 38641da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 38651da177e4SLinus Torvalds { 38668687b63aSAl Viro __be32 *p; 38671da177e4SLinus Torvalds int status = 0; 38681da177e4SLinus Torvalds 38691da177e4SLinus Torvalds *res = 1024; 38701da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 38711da177e4SLinus Torvalds return -EIO; 38721da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 38731da177e4SLinus Torvalds uint64_t maxwrite; 3874c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3875c0eae66eSBenny Halevy if (unlikely(!p)) 3876c0eae66eSBenny Halevy goto out_overflow; 3877cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 38781da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 38791da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 38801da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 38811da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 38821da177e4SLinus Torvalds } 38833110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 38841da177e4SLinus Torvalds return status; 3885c0eae66eSBenny Halevy out_overflow: 3886c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3887c0eae66eSBenny Halevy return -EIO; 38881da177e4SLinus Torvalds } 38891da177e4SLinus Torvalds 3890bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 38911da177e4SLinus Torvalds { 3892bca79478STrond Myklebust uint32_t tmp; 38938687b63aSAl Viro __be32 *p; 3894409924e4STrond Myklebust int ret = 0; 38951da177e4SLinus Torvalds 38961da177e4SLinus Torvalds *mode = 0; 38971da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 38981da177e4SLinus Torvalds return -EIO; 38991da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3900c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3901c0eae66eSBenny Halevy if (unlikely(!p)) 3902c0eae66eSBenny Halevy goto out_overflow; 3903cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3904bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 39051da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3906409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 39071da177e4SLinus Torvalds } 39083110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3909409924e4STrond Myklebust return ret; 3910c0eae66eSBenny Halevy out_overflow: 3911c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3912c0eae66eSBenny Halevy return -EIO; 39131da177e4SLinus Torvalds } 39141da177e4SLinus Torvalds 39151da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 39161da177e4SLinus Torvalds { 39178687b63aSAl Viro __be32 *p; 3918409924e4STrond Myklebust int ret = 0; 39191da177e4SLinus Torvalds 39201da177e4SLinus Torvalds *nlink = 1; 39211da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 39221da177e4SLinus Torvalds return -EIO; 39231da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3924c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3925c0eae66eSBenny Halevy if (unlikely(!p)) 3926c0eae66eSBenny Halevy goto out_overflow; 3927cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 39281da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3929409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 39301da177e4SLinus Torvalds } 39313110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3932409924e4STrond Myklebust return ret; 3933c0eae66eSBenny Halevy out_overflow: 3934c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3935c0eae66eSBenny Halevy return -EIO; 39361da177e4SLinus Torvalds } 39371da177e4SLinus Torvalds 3938686a816aSTrond Myklebust static ssize_t decode_nfs4_string(struct xdr_stream *xdr, 3939686a816aSTrond Myklebust struct nfs4_string *name, gfp_t gfp_flags) 3940686a816aSTrond Myklebust { 3941686a816aSTrond Myklebust ssize_t ret; 3942686a816aSTrond Myklebust 3943686a816aSTrond Myklebust ret = xdr_stream_decode_string_dup(xdr, &name->data, 3944686a816aSTrond Myklebust XDR_MAX_NETOBJ, gfp_flags); 3945686a816aSTrond Myklebust name->len = 0; 3946686a816aSTrond Myklebust if (ret > 0) 3947686a816aSTrond Myklebust name->len = ret; 3948686a816aSTrond Myklebust return ret; 3949686a816aSTrond Myklebust } 3950686a816aSTrond Myklebust 395180e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3952e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 39536926afd1STrond Myklebust struct nfs4_string *owner_name) 39541da177e4SLinus Torvalds { 3955686a816aSTrond Myklebust ssize_t len; 3956686a816aSTrond Myklebust char *p; 39571da177e4SLinus Torvalds 3958e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 39591da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 39601da177e4SLinus Torvalds return -EIO; 3961686a816aSTrond Myklebust if (!(bitmap[1] & FATTR4_WORD1_OWNER)) 3962686a816aSTrond Myklebust return 0; 39631da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 3964686a816aSTrond Myklebust 3965686a816aSTrond Myklebust if (owner_name != NULL) { 3966e8d8aa46STrond Myklebust len = decode_nfs4_string(xdr, owner_name, GFP_NOIO); 3967686a816aSTrond Myklebust if (len <= 0) 3968686a816aSTrond Myklebust goto out; 3969686a816aSTrond Myklebust dprintk("%s: name=%s\n", __func__, owner_name->data); 3970686a816aSTrond Myklebust return NFS_ATTR_FATTR_OWNER_NAME; 3971686a816aSTrond Myklebust } else { 3972686a816aSTrond Myklebust len = xdr_stream_decode_opaque_inline(xdr, (void **)&p, 3973686a816aSTrond Myklebust XDR_MAX_NETOBJ); 3974686a816aSTrond Myklebust if (len <= 0 || nfs_map_name_to_uid(server, p, len, uid) != 0) 3975686a816aSTrond Myklebust goto out; 3976e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3977686a816aSTrond Myklebust return NFS_ATTR_FATTR_OWNER; 3978686a816aSTrond Myklebust } 3979686a816aSTrond Myklebust out: 3980686a816aSTrond Myklebust if (len != -EBADMSG) 3981686a816aSTrond Myklebust return 0; 3982c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3983c0eae66eSBenny Halevy return -EIO; 39841da177e4SLinus Torvalds } 39851da177e4SLinus Torvalds 398680e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3987e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 39886926afd1STrond Myklebust struct nfs4_string *group_name) 39891da177e4SLinus Torvalds { 3990686a816aSTrond Myklebust ssize_t len; 3991686a816aSTrond Myklebust char *p; 39921da177e4SLinus Torvalds 3993e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 39941da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 39951da177e4SLinus Torvalds return -EIO; 3996686a816aSTrond Myklebust if (!(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) 3997686a816aSTrond Myklebust return 0; 39981da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 3999686a816aSTrond Myklebust 4000686a816aSTrond Myklebust if (group_name != NULL) { 4001e8d8aa46STrond Myklebust len = decode_nfs4_string(xdr, group_name, GFP_NOIO); 4002686a816aSTrond Myklebust if (len <= 0) 4003686a816aSTrond Myklebust goto out; 4004686a816aSTrond Myklebust dprintk("%s: name=%s\n", __func__, group_name->data); 40056f1f6220SKinglong Mee return NFS_ATTR_FATTR_GROUP_NAME; 4006686a816aSTrond Myklebust } else { 4007686a816aSTrond Myklebust len = xdr_stream_decode_opaque_inline(xdr, (void **)&p, 4008686a816aSTrond Myklebust XDR_MAX_NETOBJ); 4009686a816aSTrond Myklebust if (len <= 0 || nfs_map_group_to_gid(server, p, len, gid) != 0) 4010686a816aSTrond Myklebust goto out; 4011e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 4012686a816aSTrond Myklebust return NFS_ATTR_FATTR_GROUP; 4013686a816aSTrond Myklebust } 4014686a816aSTrond Myklebust out: 4015686a816aSTrond Myklebust if (len != -EBADMSG) 4016686a816aSTrond Myklebust return 0; 4017c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4018c0eae66eSBenny Halevy return -EIO; 40191da177e4SLinus Torvalds } 40201da177e4SLinus Torvalds 40211da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 40221da177e4SLinus Torvalds { 40238687b63aSAl Viro uint32_t major = 0, minor = 0; 40248687b63aSAl Viro __be32 *p; 4025409924e4STrond Myklebust int ret = 0; 40261da177e4SLinus Torvalds 40271da177e4SLinus Torvalds *rdev = MKDEV(0,0); 40281da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 40291da177e4SLinus Torvalds return -EIO; 40301da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 40311da177e4SLinus Torvalds dev_t tmp; 40321da177e4SLinus Torvalds 4033c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4034c0eae66eSBenny Halevy if (unlikely(!p)) 4035c0eae66eSBenny Halevy goto out_overflow; 40366f723f77SBenny Halevy major = be32_to_cpup(p++); 4037cccddf4fSBenny Halevy minor = be32_to_cpup(p); 40381da177e4SLinus Torvalds tmp = MKDEV(major, minor); 40391da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 40401da177e4SLinus Torvalds *rdev = tmp; 40411da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 4042409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 40431da177e4SLinus Torvalds } 40443110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 4045409924e4STrond Myklebust return ret; 4046c0eae66eSBenny Halevy out_overflow: 4047c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4048c0eae66eSBenny Halevy return -EIO; 40491da177e4SLinus Torvalds } 40501da177e4SLinus Torvalds 40511da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40521da177e4SLinus Torvalds { 40538687b63aSAl Viro __be32 *p; 40541da177e4SLinus Torvalds int status = 0; 40551da177e4SLinus Torvalds 40561da177e4SLinus Torvalds *res = 0; 40571da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 40581da177e4SLinus Torvalds return -EIO; 40591da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 4060c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4061c0eae66eSBenny Halevy if (unlikely(!p)) 4062c0eae66eSBenny Halevy goto out_overflow; 4063cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40641da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 40651da177e4SLinus Torvalds } 40663110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 40671da177e4SLinus Torvalds return status; 4068c0eae66eSBenny Halevy out_overflow: 4069c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4070c0eae66eSBenny Halevy return -EIO; 40711da177e4SLinus Torvalds } 40721da177e4SLinus Torvalds 40731da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40741da177e4SLinus Torvalds { 40758687b63aSAl Viro __be32 *p; 40761da177e4SLinus Torvalds int status = 0; 40771da177e4SLinus Torvalds 40781da177e4SLinus Torvalds *res = 0; 40791da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 40801da177e4SLinus Torvalds return -EIO; 40811da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 4082c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4083c0eae66eSBenny Halevy if (unlikely(!p)) 4084c0eae66eSBenny Halevy goto out_overflow; 4085cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40861da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 40871da177e4SLinus Torvalds } 40883110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 40891da177e4SLinus Torvalds return status; 4090c0eae66eSBenny Halevy out_overflow: 4091c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4092c0eae66eSBenny Halevy return -EIO; 40931da177e4SLinus Torvalds } 40941da177e4SLinus Torvalds 40951da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40961da177e4SLinus Torvalds { 40978687b63aSAl Viro __be32 *p; 40981da177e4SLinus Torvalds int status = 0; 40991da177e4SLinus Torvalds 41001da177e4SLinus Torvalds *res = 0; 41011da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 41021da177e4SLinus Torvalds return -EIO; 41031da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4104c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4105c0eae66eSBenny Halevy if (unlikely(!p)) 4106c0eae66eSBenny Halevy goto out_overflow; 4107cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 41081da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 41091da177e4SLinus Torvalds } 41103110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 41111da177e4SLinus Torvalds return status; 4112c0eae66eSBenny Halevy out_overflow: 4113c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4114c0eae66eSBenny Halevy return -EIO; 41151da177e4SLinus Torvalds } 41161da177e4SLinus Torvalds 41171da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 41181da177e4SLinus Torvalds { 41198687b63aSAl Viro __be32 *p; 4120409924e4STrond Myklebust int ret = 0; 41211da177e4SLinus Torvalds 41221da177e4SLinus Torvalds *used = 0; 41231da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 41241da177e4SLinus Torvalds return -EIO; 41251da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4126c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4127c0eae66eSBenny Halevy if (unlikely(!p)) 4128c0eae66eSBenny Halevy goto out_overflow; 4129cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 41301da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4131409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 41321da177e4SLinus Torvalds } 41333110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 41341da177e4SLinus Torvalds (unsigned long long)*used); 4135409924e4STrond Myklebust return ret; 4136c0eae66eSBenny Halevy out_overflow: 4137c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4138c0eae66eSBenny Halevy return -EIO; 41391da177e4SLinus Torvalds } 41401da177e4SLinus Torvalds 414136b3743fSTrond Myklebust static __be32 * 414236b3743fSTrond Myklebust xdr_decode_nfstime4(__be32 *p, struct timespec *t) 414336b3743fSTrond Myklebust { 414436b3743fSTrond Myklebust __u64 sec; 414536b3743fSTrond Myklebust 414636b3743fSTrond Myklebust p = xdr_decode_hyper(p, &sec); 414736b3743fSTrond Myklebust t-> tv_sec = (time_t)sec; 414836b3743fSTrond Myklebust t->tv_nsec = be32_to_cpup(p++); 414936b3743fSTrond Myklebust return p; 415036b3743fSTrond Myklebust } 415136b3743fSTrond Myklebust 41521da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 41531da177e4SLinus Torvalds { 41548687b63aSAl Viro __be32 *p; 41551da177e4SLinus Torvalds 415636b3743fSTrond Myklebust p = xdr_inline_decode(xdr, nfstime4_maxsz << 2); 4157c0eae66eSBenny Halevy if (unlikely(!p)) 4158c0eae66eSBenny Halevy goto out_overflow; 415936b3743fSTrond Myklebust xdr_decode_nfstime4(p, time); 41601da177e4SLinus Torvalds return 0; 4161c0eae66eSBenny Halevy out_overflow: 4162c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4163c0eae66eSBenny Halevy return -EIO; 41641da177e4SLinus Torvalds } 41651da177e4SLinus Torvalds 41661da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41671da177e4SLinus Torvalds { 41681da177e4SLinus Torvalds int status = 0; 41691da177e4SLinus Torvalds 41701da177e4SLinus Torvalds time->tv_sec = 0; 41711da177e4SLinus Torvalds time->tv_nsec = 0; 41721da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 41731da177e4SLinus Torvalds return -EIO; 41741da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 41751da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4176409924e4STrond Myklebust if (status == 0) 4177409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 41781da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 41791da177e4SLinus Torvalds } 41803110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 41811da177e4SLinus Torvalds return status; 41821da177e4SLinus Torvalds } 41831da177e4SLinus Torvalds 41841da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41851da177e4SLinus Torvalds { 41861da177e4SLinus Torvalds int status = 0; 41871da177e4SLinus Torvalds 41881da177e4SLinus Torvalds time->tv_sec = 0; 41891da177e4SLinus Torvalds time->tv_nsec = 0; 41901da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 41911da177e4SLinus Torvalds return -EIO; 41921da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 41931da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4194409924e4STrond Myklebust if (status == 0) 4195409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 41961da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 41971da177e4SLinus Torvalds } 41983110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 41991da177e4SLinus Torvalds return status; 42001da177e4SLinus Torvalds } 42011da177e4SLinus Torvalds 420255b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 420355b6e774SRicardo Labiaga struct timespec *time) 420455b6e774SRicardo Labiaga { 420555b6e774SRicardo Labiaga int status = 0; 420655b6e774SRicardo Labiaga 420755b6e774SRicardo Labiaga time->tv_sec = 0; 420855b6e774SRicardo Labiaga time->tv_nsec = 0; 420955b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 421055b6e774SRicardo Labiaga return -EIO; 421155b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 421255b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 421355b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 421455b6e774SRicardo Labiaga } 421555b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 421655b6e774SRicardo Labiaga (long)time->tv_nsec); 421755b6e774SRicardo Labiaga return status; 421855b6e774SRicardo Labiaga } 421955b6e774SRicardo Labiaga 4220aa9c2669SDavid Quigley static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap, 4221aa9c2669SDavid Quigley struct nfs4_label *label) 4222aa9c2669SDavid Quigley { 4223aa9c2669SDavid Quigley uint32_t pi = 0; 4224aa9c2669SDavid Quigley uint32_t lfs = 0; 4225aa9c2669SDavid Quigley __u32 len; 4226aa9c2669SDavid Quigley __be32 *p; 4227aa9c2669SDavid Quigley int status = 0; 4228aa9c2669SDavid Quigley 4229aa9c2669SDavid Quigley if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U))) 4230aa9c2669SDavid Quigley return -EIO; 4231aa9c2669SDavid Quigley if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) { 4232aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4233aa9c2669SDavid Quigley if (unlikely(!p)) 4234aa9c2669SDavid Quigley goto out_overflow; 4235aa9c2669SDavid Quigley lfs = be32_to_cpup(p++); 4236aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4237aa9c2669SDavid Quigley if (unlikely(!p)) 4238aa9c2669SDavid Quigley goto out_overflow; 4239aa9c2669SDavid Quigley pi = be32_to_cpup(p++); 4240aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4241aa9c2669SDavid Quigley if (unlikely(!p)) 4242aa9c2669SDavid Quigley goto out_overflow; 4243aa9c2669SDavid Quigley len = be32_to_cpup(p++); 4244aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, len); 4245aa9c2669SDavid Quigley if (unlikely(!p)) 4246aa9c2669SDavid Quigley goto out_overflow; 4247aa9c2669SDavid Quigley if (len < NFS4_MAXLABELLEN) { 4248aa9c2669SDavid Quigley if (label) { 4249aa9c2669SDavid Quigley memcpy(label->label, p, len); 4250aa9c2669SDavid Quigley label->len = len; 4251aa9c2669SDavid Quigley label->pi = pi; 4252aa9c2669SDavid Quigley label->lfs = lfs; 4253aa9c2669SDavid Quigley status = NFS_ATTR_FATTR_V4_SECURITY_LABEL; 4254aa9c2669SDavid Quigley } 4255aa9c2669SDavid Quigley bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL; 4256aa9c2669SDavid Quigley } else 4257aa9c2669SDavid Quigley printk(KERN_WARNING "%s: label too long (%u)!\n", 4258aa9c2669SDavid Quigley __func__, len); 4259aa9c2669SDavid Quigley } 4260aa9c2669SDavid Quigley if (label && label->label) 4261aa9c2669SDavid Quigley dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__, 4262aa9c2669SDavid Quigley (char *)label->label, label->len, label->pi, label->lfs); 4263aa9c2669SDavid Quigley return status; 4264aa9c2669SDavid Quigley 4265aa9c2669SDavid Quigley out_overflow: 4266aa9c2669SDavid Quigley print_overflow_msg(__func__, xdr); 4267aa9c2669SDavid Quigley return -EIO; 4268aa9c2669SDavid Quigley } 4269aa9c2669SDavid Quigley 42701da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 42711da177e4SLinus Torvalds { 42721da177e4SLinus Torvalds int status = 0; 42731da177e4SLinus Torvalds 42741da177e4SLinus Torvalds time->tv_sec = 0; 42751da177e4SLinus Torvalds time->tv_nsec = 0; 42761da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 42771da177e4SLinus Torvalds return -EIO; 42781da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 42791da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4280409924e4STrond Myklebust if (status == 0) 4281409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 42821da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 42831da177e4SLinus Torvalds } 42843110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 42851da177e4SLinus Torvalds return status; 42861da177e4SLinus Torvalds } 42871da177e4SLinus Torvalds 4288256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 42891da177e4SLinus Torvalds { 42901da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4291256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 42921da177e4SLinus Torvalds 42931da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4294fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4295fe82a183SChuck Lever "%u %c %u\n", 42963110ff80SHarvey Harrison __func__, 42971da177e4SLinus Torvalds attrwords << 2, 42981da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 42991da177e4SLinus Torvalds nwords << 2); 43001da177e4SLinus Torvalds return -EIO; 43011da177e4SLinus Torvalds } 43021da177e4SLinus Torvalds return 0; 43031da177e4SLinus Torvalds } 43041da177e4SLinus Torvalds 43051da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43061da177e4SLinus Torvalds { 43078687b63aSAl Viro __be32 *p; 43081da177e4SLinus Torvalds 4309c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4310c0eae66eSBenny Halevy if (unlikely(!p)) 4311c0eae66eSBenny Halevy goto out_overflow; 43126f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 43133ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4314cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 43151da177e4SLinus Torvalds return 0; 4316c0eae66eSBenny Halevy out_overflow: 4317c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4318c0eae66eSBenny Halevy return -EIO; 43191da177e4SLinus Torvalds } 43201da177e4SLinus Torvalds 43216168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 43221da177e4SLinus Torvalds { 43238687b63aSAl Viro __be32 *p; 43241da177e4SLinus Torvalds uint32_t supp, acc; 43251da177e4SLinus Torvalds int status; 43261da177e4SLinus Torvalds 43271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 43281da177e4SLinus Torvalds if (status) 43291da177e4SLinus Torvalds return status; 4330c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4331c0eae66eSBenny Halevy if (unlikely(!p)) 4332c0eae66eSBenny Halevy goto out_overflow; 43336f723f77SBenny Halevy supp = be32_to_cpup(p++); 4334cccddf4fSBenny Halevy acc = be32_to_cpup(p); 43356168f62cSWeston Andros Adamson *supported = supp; 43366168f62cSWeston Andros Adamson *access = acc; 43371da177e4SLinus Torvalds return 0; 4338c0eae66eSBenny Halevy out_overflow: 4339c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4340c0eae66eSBenny Halevy return -EIO; 43411da177e4SLinus Torvalds } 43421da177e4SLinus Torvalds 434307d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 43441da177e4SLinus Torvalds { 4345ab6e9aafSTrond Myklebust ssize_t ret = xdr_stream_decode_opaque_fixed(xdr, buf, len); 4346ab6e9aafSTrond Myklebust if (unlikely(ret < 0)) { 434707d30434SBenny Halevy print_overflow_msg(__func__, xdr); 434807d30434SBenny Halevy return -EIO; 434907d30434SBenny Halevy } 4350ab6e9aafSTrond Myklebust return 0; 4351ab6e9aafSTrond Myklebust } 435207d30434SBenny Halevy 435307d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 435407d30434SBenny Halevy { 43552d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 43561da177e4SLinus Torvalds } 43571da177e4SLinus Torvalds 435893b717fdSTrond Myklebust static int decode_open_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 435993b717fdSTrond Myklebust { 436093b717fdSTrond Myklebust stateid->type = NFS4_OPEN_STATEID_TYPE; 436193b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 436293b717fdSTrond Myklebust } 436393b717fdSTrond Myklebust 436493b717fdSTrond Myklebust static int decode_lock_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 436593b717fdSTrond Myklebust { 436693b717fdSTrond Myklebust stateid->type = NFS4_LOCK_STATEID_TYPE; 436793b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 436893b717fdSTrond Myklebust } 436993b717fdSTrond Myklebust 437093b717fdSTrond Myklebust static int decode_delegation_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 437193b717fdSTrond Myklebust { 437293b717fdSTrond Myklebust stateid->type = NFS4_DELEGATION_STATEID_TYPE; 437393b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 437493b717fdSTrond Myklebust } 437593b717fdSTrond Myklebust 4376fcd8843cSTrond Myklebust static int decode_invalid_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 4377fcd8843cSTrond Myklebust { 4378fcd8843cSTrond Myklebust nfs4_stateid dummy; 4379fcd8843cSTrond Myklebust 4380fcd8843cSTrond Myklebust nfs4_stateid_copy(stateid, &invalid_stateid); 4381fcd8843cSTrond Myklebust return decode_stateid(xdr, &dummy); 4382fcd8843cSTrond Myklebust } 4383fcd8843cSTrond Myklebust 43841da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 43851da177e4SLinus Torvalds { 43861da177e4SLinus Torvalds int status; 43871da177e4SLinus Torvalds 43881da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4389c1d51931STrond Myklebust if (status != -EIO) 4390c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 439107d30434SBenny Halevy if (!status) 4392fcd8843cSTrond Myklebust status = decode_invalid_stateid(xdr, &res->stateid); 43931da177e4SLinus Torvalds return status; 43941da177e4SLinus Torvalds } 43951da177e4SLinus Torvalds 4396db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4397db942bbdSBenny Halevy { 4398cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 43991da177e4SLinus Torvalds } 44001da177e4SLinus Torvalds 44012f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 44022f2c63bcSTrond Myklebust { 44032f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 44042f2c63bcSTrond Myklebust } 44052f2c63bcSTrond Myklebust 44060b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 44071da177e4SLinus Torvalds { 44081da177e4SLinus Torvalds int status; 44091da177e4SLinus Torvalds 44101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4411db942bbdSBenny Halevy if (!status) 44122f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 44131da177e4SLinus Torvalds return status; 44141da177e4SLinus Torvalds } 44151da177e4SLinus Torvalds 44161da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 44171da177e4SLinus Torvalds { 44188687b63aSAl Viro __be32 *p; 44191da177e4SLinus Torvalds uint32_t bmlen; 44201da177e4SLinus Torvalds int status; 44211da177e4SLinus Torvalds 44221da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 44231da177e4SLinus Torvalds if (status) 44241da177e4SLinus Torvalds return status; 44251da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 44261da177e4SLinus Torvalds return status; 4427c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4428c0eae66eSBenny Halevy if (unlikely(!p)) 4429c0eae66eSBenny Halevy goto out_overflow; 4430cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4431c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4432c0eae66eSBenny Halevy if (likely(p)) 44331da177e4SLinus Torvalds return 0; 4434c0eae66eSBenny Halevy out_overflow: 4435c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4436c0eae66eSBenny Halevy return -EIO; 44371da177e4SLinus Torvalds } 44381da177e4SLinus Torvalds 44391da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 44401da177e4SLinus Torvalds { 4441256e48bbSTrond Myklebust unsigned int savep; 4442dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 44431da177e4SLinus Torvalds int status; 44441da177e4SLinus Torvalds 44451da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 44461da177e4SLinus Torvalds goto xdr_error; 44471da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 44481da177e4SLinus Torvalds goto xdr_error; 44491da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 44501da177e4SLinus Torvalds goto xdr_error; 44511da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 44521da177e4SLinus Torvalds goto xdr_error; 4453264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4454264e6351SChuck Lever &res->fh_expire_type)) != 0) 4455264e6351SChuck Lever goto xdr_error; 44561da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 44571da177e4SLinus Torvalds goto xdr_error; 44581da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 44591da177e4SLinus Torvalds goto xdr_error; 44601da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 44611da177e4SLinus Torvalds goto xdr_error; 44628c61282fSKinglong Mee if ((status = decode_attr_exclcreat_supported(xdr, bitmap, 44638c61282fSKinglong Mee res->exclcreat_bitmask)) != 0) 44648c61282fSKinglong Mee goto xdr_error; 44651da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44661da177e4SLinus Torvalds xdr_error: 44673110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44681da177e4SLinus Torvalds return status; 44691da177e4SLinus Torvalds } 44701da177e4SLinus Torvalds 44711da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 44721da177e4SLinus Torvalds { 4473256e48bbSTrond Myklebust unsigned int savep; 4474dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 44751da177e4SLinus Torvalds int status; 44761da177e4SLinus Torvalds 44771da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 44781da177e4SLinus Torvalds goto xdr_error; 44791da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 44801da177e4SLinus Torvalds goto xdr_error; 44811da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 44821da177e4SLinus Torvalds goto xdr_error; 44831da177e4SLinus Torvalds 44841da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 44851da177e4SLinus Torvalds goto xdr_error; 44861da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 44871da177e4SLinus Torvalds goto xdr_error; 44881da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 44891da177e4SLinus Torvalds goto xdr_error; 44901ca843a2SAndreas Gruenbacher 44911ca843a2SAndreas Gruenbacher status = -EIO; 44921ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 44931ca843a2SAndreas Gruenbacher goto xdr_error; 44941ca843a2SAndreas Gruenbacher 44951da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 44961da177e4SLinus Torvalds goto xdr_error; 44971da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 44981da177e4SLinus Torvalds goto xdr_error; 44991da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 45001da177e4SLinus Torvalds goto xdr_error; 45011da177e4SLinus Torvalds 45021da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 45031da177e4SLinus Torvalds xdr_error: 45043110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 45051da177e4SLinus Torvalds return status; 45061da177e4SLinus Torvalds } 45071da177e4SLinus Torvalds 45081da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 45091da177e4SLinus Torvalds { 4510256e48bbSTrond Myklebust unsigned int savep; 4511dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 45121da177e4SLinus Torvalds int status; 45131da177e4SLinus Torvalds 45141da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 45151da177e4SLinus Torvalds goto xdr_error; 45161da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 45171da177e4SLinus Torvalds goto xdr_error; 45181da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 45191da177e4SLinus Torvalds goto xdr_error; 45201da177e4SLinus Torvalds 45211da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 45221da177e4SLinus Torvalds goto xdr_error; 45231da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 45241da177e4SLinus Torvalds goto xdr_error; 45251da177e4SLinus Torvalds 45261da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 45271da177e4SLinus Torvalds xdr_error: 45283110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 45291da177e4SLinus Torvalds return status; 45301da177e4SLinus Torvalds } 45311da177e4SLinus Torvalds 453288034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 453388034c3dSAndy Adamson uint32_t *bitmap, 453488034c3dSAndy Adamson uint64_t *res, 453588034c3dSAndy Adamson uint32_t hint_bit) 453688034c3dSAndy Adamson { 453788034c3dSAndy Adamson __be32 *p; 453888034c3dSAndy Adamson 453988034c3dSAndy Adamson *res = 0; 454088034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 454188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 454288034c3dSAndy Adamson if (unlikely(!p)) 454388034c3dSAndy Adamson goto out_overflow; 454488034c3dSAndy Adamson xdr_decode_hyper(p, res); 454588034c3dSAndy Adamson } 454688034c3dSAndy Adamson return 0; 454788034c3dSAndy Adamson out_overflow: 454888034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 454988034c3dSAndy Adamson return -EIO; 455088034c3dSAndy Adamson } 455188034c3dSAndy Adamson 455288034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 455388034c3dSAndy Adamson struct nfs4_threshold *res) 455488034c3dSAndy Adamson { 4555256e48bbSTrond Myklebust __be32 *p; 4556256e48bbSTrond Myklebust unsigned int savep; 455788034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 455888034c3dSAndy Adamson int status; 455988034c3dSAndy Adamson 456088034c3dSAndy Adamson /* layout type */ 456188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 456288034c3dSAndy Adamson if (unlikely(!p)) { 456388034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 456488034c3dSAndy Adamson return -EIO; 456588034c3dSAndy Adamson } 456688034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 456788034c3dSAndy Adamson 456888034c3dSAndy Adamson /* thi_hintset bitmap */ 456988034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 457088034c3dSAndy Adamson if (status < 0) 457188034c3dSAndy Adamson goto xdr_error; 457288034c3dSAndy Adamson 457388034c3dSAndy Adamson /* thi_hintlist length */ 457488034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 457588034c3dSAndy Adamson if (status < 0) 457688034c3dSAndy Adamson goto xdr_error; 457788034c3dSAndy Adamson /* thi_hintlist */ 457888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 457988034c3dSAndy Adamson if (status < 0) 458088034c3dSAndy Adamson goto xdr_error; 458188034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 458288034c3dSAndy Adamson if (status < 0) 458388034c3dSAndy Adamson goto xdr_error; 458488034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 458588034c3dSAndy Adamson THRESHOLD_RD_IO); 458688034c3dSAndy Adamson if (status < 0) 458788034c3dSAndy Adamson goto xdr_error; 458888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 458988034c3dSAndy Adamson THRESHOLD_WR_IO); 459088034c3dSAndy Adamson if (status < 0) 459188034c3dSAndy Adamson goto xdr_error; 459288034c3dSAndy Adamson 459388034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 459488034c3dSAndy Adamson res->bm = bitmap[0]; 459588034c3dSAndy Adamson 459688034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 459788034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 459888034c3dSAndy Adamson res->wr_io_sz); 459988034c3dSAndy Adamson xdr_error: 460088034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 460188034c3dSAndy Adamson return status; 460288034c3dSAndy Adamson } 460388034c3dSAndy Adamson 460488034c3dSAndy Adamson /* 460588034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 460688034c3dSAndy Adamson */ 460788034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 460888034c3dSAndy Adamson uint32_t *bitmap, 460988034c3dSAndy Adamson struct nfs4_threshold *res) 461088034c3dSAndy Adamson { 461188034c3dSAndy Adamson __be32 *p; 461288034c3dSAndy Adamson int status = 0; 461388034c3dSAndy Adamson uint32_t num; 461488034c3dSAndy Adamson 461588034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 461688034c3dSAndy Adamson return -EIO; 4617029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 46181549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 46191549210fSTrond Myklebust if (unlikely(res == NULL)) 46201549210fSTrond Myklebust return -EREMOTEIO; 462188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 462288034c3dSAndy Adamson if (unlikely(!p)) 462388034c3dSAndy Adamson goto out_overflow; 462488034c3dSAndy Adamson num = be32_to_cpup(p); 462588034c3dSAndy Adamson if (num == 0) 462688034c3dSAndy Adamson return 0; 462788034c3dSAndy Adamson if (num > 1) 462888034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 462988034c3dSAndy Adamson "drivers per filesystem not supported\n", 463088034c3dSAndy Adamson __func__); 463188034c3dSAndy Adamson 463288034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4633029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 463488034c3dSAndy Adamson } 463588034c3dSAndy Adamson return status; 463688034c3dSAndy Adamson out_overflow: 463788034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 463888034c3dSAndy Adamson return -EIO; 463988034c3dSAndy Adamson } 464088034c3dSAndy Adamson 4641ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4642ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 4643aa9c2669SDavid Quigley struct nfs4_fs_locations *fs_loc, struct nfs4_label *label, 46446926afd1STrond Myklebust const struct nfs_server *server) 46451da177e4SLinus Torvalds { 4646bca79478STrond Myklebust int status; 4647bca79478STrond Myklebust umode_t fmode = 0; 4648ae42c70aSBryan Schumaker uint32_t type; 4649ee7b75fcSTrond Myklebust int32_t err; 46501da177e4SLinus Torvalds 4651f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4652f26c7a78STrond Myklebust if (status < 0) 46531da177e4SLinus Torvalds goto xdr_error; 4654409924e4STrond Myklebust fattr->mode = 0; 4655409924e4STrond Myklebust if (status != 0) { 4656409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4657409924e4STrond Myklebust fattr->valid |= status; 4658409924e4STrond Myklebust } 46591da177e4SLinus Torvalds 4660f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4661f26c7a78STrond Myklebust if (status < 0) 46621da177e4SLinus Torvalds goto xdr_error; 4663409924e4STrond Myklebust fattr->valid |= status; 4664f26c7a78STrond Myklebust 4665f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4666f26c7a78STrond Myklebust if (status < 0) 46671da177e4SLinus Torvalds goto xdr_error; 4668409924e4STrond Myklebust fattr->valid |= status; 4669f26c7a78STrond Myklebust 4670f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4671f26c7a78STrond Myklebust if (status < 0) 46721da177e4SLinus Torvalds goto xdr_error; 4673409924e4STrond Myklebust fattr->valid |= status; 4674f26c7a78STrond Myklebust 4675ee7b75fcSTrond Myklebust err = 0; 4676ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4677ae42c70aSBryan Schumaker if (status < 0) 4678ae42c70aSBryan Schumaker goto xdr_error; 4679ae42c70aSBryan Schumaker 4680ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4681ae42c70aSBryan Schumaker if (status < 0) 4682ae42c70aSBryan Schumaker goto xdr_error; 4683ae42c70aSBryan Schumaker 4684f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4685f26c7a78STrond Myklebust if (status < 0) 46861da177e4SLinus Torvalds goto xdr_error; 4687409924e4STrond Myklebust fattr->valid |= status; 4688f26c7a78STrond Myklebust 46898b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4690f26c7a78STrond Myklebust if (status < 0) 4691683b57b4STrond Myklebust goto xdr_error; 4692409924e4STrond Myklebust fattr->valid |= status; 4693f26c7a78STrond Myklebust 46941ca843a2SAndreas Gruenbacher status = -EIO; 46951ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 46961ca843a2SAndreas Gruenbacher goto xdr_error; 46971ca843a2SAndreas Gruenbacher 4698f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4699f26c7a78STrond Myklebust if (status < 0) 47001da177e4SLinus Torvalds goto xdr_error; 4701409924e4STrond Myklebust if (status != 0) { 47021da177e4SLinus Torvalds fattr->mode |= fmode; 4703409924e4STrond Myklebust fattr->valid |= status; 4704409924e4STrond Myklebust } 4705f26c7a78STrond Myklebust 4706f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4707f26c7a78STrond Myklebust if (status < 0) 47081da177e4SLinus Torvalds goto xdr_error; 4709409924e4STrond Myklebust fattr->valid |= status; 4710f26c7a78STrond Myklebust 47116926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4712f26c7a78STrond Myklebust if (status < 0) 47131da177e4SLinus Torvalds goto xdr_error; 4714409924e4STrond Myklebust fattr->valid |= status; 4715f26c7a78STrond Myklebust 47166926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4717f26c7a78STrond Myklebust if (status < 0) 47181da177e4SLinus Torvalds goto xdr_error; 4719409924e4STrond Myklebust fattr->valid |= status; 4720f26c7a78STrond Myklebust 4721f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4722f26c7a78STrond Myklebust if (status < 0) 47231da177e4SLinus Torvalds goto xdr_error; 4724409924e4STrond Myklebust fattr->valid |= status; 4725f26c7a78STrond Myklebust 4726f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4727f26c7a78STrond Myklebust if (status < 0) 47281da177e4SLinus Torvalds goto xdr_error; 4729409924e4STrond Myklebust fattr->valid |= status; 4730f26c7a78STrond Myklebust 4731f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4732f26c7a78STrond Myklebust if (status < 0) 47331da177e4SLinus Torvalds goto xdr_error; 4734409924e4STrond Myklebust fattr->valid |= status; 4735f26c7a78STrond Myklebust 4736f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4737f26c7a78STrond Myklebust if (status < 0) 47381da177e4SLinus Torvalds goto xdr_error; 4739409924e4STrond Myklebust fattr->valid |= status; 4740f26c7a78STrond Myklebust 4741f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4742f26c7a78STrond Myklebust if (status < 0) 47431da177e4SLinus Torvalds goto xdr_error; 4744409924e4STrond Myklebust fattr->valid |= status; 4745f26c7a78STrond Myklebust 474628331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4747f26c7a78STrond Myklebust if (status < 0) 474899baf625SManoj Naik goto xdr_error; 4749409924e4STrond Myklebust fattr->valid |= status; 4750f26c7a78STrond Myklebust 47511ca843a2SAndreas Gruenbacher status = -EIO; 47521ca843a2SAndreas Gruenbacher if (unlikely(bitmap[1])) 47531ca843a2SAndreas Gruenbacher goto xdr_error; 47541ca843a2SAndreas Gruenbacher 475588034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 475688034c3dSAndy Adamson if (status < 0) 475788034c3dSAndy Adamson goto xdr_error; 475888034c3dSAndy Adamson 4759aa9c2669SDavid Quigley if (label) { 4760aa9c2669SDavid Quigley status = decode_attr_security_label(xdr, bitmap, label); 4761aa9c2669SDavid Quigley if (status < 0) 4762aa9c2669SDavid Quigley goto xdr_error; 4763aa9c2669SDavid Quigley fattr->valid |= status; 4764aa9c2669SDavid Quigley } 4765aa9c2669SDavid Quigley 4766ae42c70aSBryan Schumaker xdr_error: 4767ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4768ae42c70aSBryan Schumaker return status; 4769ae42c70aSBryan Schumaker } 4770ae42c70aSBryan Schumaker 4771ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 47728b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 4773aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4774ae42c70aSBryan Schumaker { 4775256e48bbSTrond Myklebust unsigned int savep; 4776ae42c70aSBryan Schumaker uint32_t attrlen, 4777dae100c2SFred Isaman bitmap[3] = {0}; 4778ae42c70aSBryan Schumaker int status; 4779ae42c70aSBryan Schumaker 4780ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4781ae42c70aSBryan Schumaker if (status < 0) 4782ae42c70aSBryan Schumaker goto xdr_error; 4783ae42c70aSBryan Schumaker 4784ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4785ae42c70aSBryan Schumaker if (status < 0) 4786ae42c70aSBryan Schumaker goto xdr_error; 4787ae42c70aSBryan Schumaker 4788ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4789ae42c70aSBryan Schumaker if (status < 0) 4790ae42c70aSBryan Schumaker goto xdr_error; 4791ae42c70aSBryan Schumaker 4792aa9c2669SDavid Quigley status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, 4793aa9c2669SDavid Quigley label, server); 4794ae42c70aSBryan Schumaker if (status < 0) 4795ae42c70aSBryan Schumaker goto xdr_error; 4796ae42c70aSBryan Schumaker 4797f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 47981da177e4SLinus Torvalds xdr_error: 47993110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 48001da177e4SLinus Torvalds return status; 48011da177e4SLinus Torvalds } 48021da177e4SLinus Torvalds 4803aa9c2669SDavid Quigley static int decode_getfattr_label(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4804aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4805aa9c2669SDavid Quigley { 4806aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, label, server); 4807aa9c2669SDavid Quigley } 4808aa9c2669SDavid Quigley 4809ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 48106926afd1STrond Myklebust const struct nfs_server *server) 4811ae42c70aSBryan Schumaker { 4812aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, NULL, server); 4813ae42c70aSBryan Schumaker } 48141da177e4SLinus Torvalds 4815504913fbSAndy Adamson /* 48163132e49eSJeff Layton * Decode potentially multiple layout types. 4817504913fbSAndy Adamson */ 48183132e49eSJeff Layton static int decode_pnfs_layout_types(struct xdr_stream *xdr, 4819ca440c38SJeff Layton struct nfs_fsinfo *fsinfo) 4820504913fbSAndy Adamson { 4821b8a8a0ddSTrond Myklebust __be32 *p; 4822ca440c38SJeff Layton uint32_t i; 4823504913fbSAndy Adamson 4824504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4825504913fbSAndy Adamson if (unlikely(!p)) 4826504913fbSAndy Adamson goto out_overflow; 4827ca440c38SJeff Layton fsinfo->nlayouttypes = be32_to_cpup(p); 4828504913fbSAndy Adamson 4829504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4830ca440c38SJeff Layton if (fsinfo->nlayouttypes == 0) 4831504913fbSAndy Adamson return 0; 4832504913fbSAndy Adamson 4833504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4834ca440c38SJeff Layton p = xdr_inline_decode(xdr, fsinfo->nlayouttypes * 4); 4835504913fbSAndy Adamson if (unlikely(!p)) 4836504913fbSAndy Adamson goto out_overflow; 4837ca440c38SJeff Layton 4838ca440c38SJeff Layton /* If we get too many, then just cap it at the max */ 4839ca440c38SJeff Layton if (fsinfo->nlayouttypes > NFS_MAX_LAYOUT_TYPES) { 4840ca440c38SJeff Layton printk(KERN_INFO "NFS: %s: Warning: Too many (%u) pNFS layout types\n", 4841ca440c38SJeff Layton __func__, fsinfo->nlayouttypes); 4842ca440c38SJeff Layton fsinfo->nlayouttypes = NFS_MAX_LAYOUT_TYPES; 4843ca440c38SJeff Layton } 4844ca440c38SJeff Layton 4845ca440c38SJeff Layton for(i = 0; i < fsinfo->nlayouttypes; ++i) 4846ca440c38SJeff Layton fsinfo->layouttype[i] = be32_to_cpup(p++); 4847504913fbSAndy Adamson return 0; 4848504913fbSAndy Adamson out_overflow: 4849504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4850504913fbSAndy Adamson return -EIO; 4851504913fbSAndy Adamson } 4852504913fbSAndy Adamson 4853504913fbSAndy Adamson /* 4854504913fbSAndy Adamson * The type of file system exported. 4855504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4856504913fbSAndy Adamson */ 4857504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4858ca440c38SJeff Layton struct nfs_fsinfo *fsinfo) 4859504913fbSAndy Adamson { 4860504913fbSAndy Adamson int status = 0; 4861504913fbSAndy Adamson 4862504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4863504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4864504913fbSAndy Adamson return -EIO; 4865504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4866ca440c38SJeff Layton status = decode_pnfs_layout_types(xdr, fsinfo); 4867504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 48683132e49eSJeff Layton } 4869504913fbSAndy Adamson return status; 4870504913fbSAndy Adamson } 4871504913fbSAndy Adamson 4872dae100c2SFred Isaman /* 4873dae100c2SFred Isaman * The prefered block size for layout directed io 4874dae100c2SFred Isaman */ 4875dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4876dae100c2SFred Isaman uint32_t *res) 4877dae100c2SFred Isaman { 4878dae100c2SFred Isaman __be32 *p; 4879dae100c2SFred Isaman 4880dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4881dae100c2SFred Isaman *res = 0; 4882dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4883dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4884dae100c2SFred Isaman if (unlikely(!p)) { 4885dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4886dae100c2SFred Isaman return -EIO; 4887dae100c2SFred Isaman } 4888dae100c2SFred Isaman *res = be32_to_cpup(p); 4889dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4890dae100c2SFred Isaman } 4891dae100c2SFred Isaman return 0; 4892dae100c2SFred Isaman } 4893dae100c2SFred Isaman 48942a92ee92SPeng Tao /* 48952a92ee92SPeng Tao * The granularity of a CLONE operation. 48962a92ee92SPeng Tao */ 48972a92ee92SPeng Tao static int decode_attr_clone_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 48982a92ee92SPeng Tao uint32_t *res) 48992a92ee92SPeng Tao { 49002a92ee92SPeng Tao __be32 *p; 49012a92ee92SPeng Tao 49022a92ee92SPeng Tao dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 49032a92ee92SPeng Tao *res = 0; 49042a92ee92SPeng Tao if (bitmap[2] & FATTR4_WORD2_CLONE_BLKSIZE) { 49052a92ee92SPeng Tao p = xdr_inline_decode(xdr, 4); 49062a92ee92SPeng Tao if (unlikely(!p)) { 49072a92ee92SPeng Tao print_overflow_msg(__func__, xdr); 49082a92ee92SPeng Tao return -EIO; 49092a92ee92SPeng Tao } 49102a92ee92SPeng Tao *res = be32_to_cpup(p); 49112a92ee92SPeng Tao bitmap[2] &= ~FATTR4_WORD2_CLONE_BLKSIZE; 49122a92ee92SPeng Tao } 49132a92ee92SPeng Tao return 0; 49142a92ee92SPeng Tao } 49152a92ee92SPeng Tao 49161da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 49171da177e4SLinus Torvalds { 4918256e48bbSTrond Myklebust unsigned int savep; 4919dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 49201da177e4SLinus Torvalds int status; 49211da177e4SLinus Torvalds 49221da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 49231da177e4SLinus Torvalds goto xdr_error; 49241da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 49251da177e4SLinus Torvalds goto xdr_error; 49261da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 49271da177e4SLinus Torvalds goto xdr_error; 49281da177e4SLinus Torvalds 49291da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 49301da177e4SLinus Torvalds 49311da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 49321da177e4SLinus Torvalds goto xdr_error; 49331da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 49341da177e4SLinus Torvalds goto xdr_error; 49351da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 49361da177e4SLinus Torvalds goto xdr_error; 49371da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 49381da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 49391da177e4SLinus Torvalds goto xdr_error; 49401da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 49411ca843a2SAndreas Gruenbacher 49421ca843a2SAndreas Gruenbacher status = -EIO; 49431ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 49441ca843a2SAndreas Gruenbacher goto xdr_error; 49451ca843a2SAndreas Gruenbacher 494655b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 494755b6e774SRicardo Labiaga if (status != 0) 494855b6e774SRicardo Labiaga goto xdr_error; 4949ca440c38SJeff Layton status = decode_attr_pnfstype(xdr, bitmap, fsinfo); 4950504913fbSAndy Adamson if (status != 0) 4951504913fbSAndy Adamson goto xdr_error; 49521ca843a2SAndreas Gruenbacher 49531ca843a2SAndreas Gruenbacher status = -EIO; 49541ca843a2SAndreas Gruenbacher if (unlikely(bitmap[1])) 49551ca843a2SAndreas Gruenbacher goto xdr_error; 49561ca843a2SAndreas Gruenbacher 4957dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4958dae100c2SFred Isaman if (status) 4959dae100c2SFred Isaman goto xdr_error; 49602a92ee92SPeng Tao status = decode_attr_clone_blksize(xdr, bitmap, &fsinfo->clone_blksize); 49612a92ee92SPeng Tao if (status) 49622a92ee92SPeng Tao goto xdr_error; 49631da177e4SLinus Torvalds 49641da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 49651da177e4SLinus Torvalds xdr_error: 49663110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 49671da177e4SLinus Torvalds return status; 49681da177e4SLinus Torvalds } 49691da177e4SLinus Torvalds 49701da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 49711da177e4SLinus Torvalds { 49728687b63aSAl Viro __be32 *p; 49731da177e4SLinus Torvalds uint32_t len; 49741da177e4SLinus Torvalds int status; 49751da177e4SLinus Torvalds 49769936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 49779936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 49789936781dSTrond Myklebust 49791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 49801da177e4SLinus Torvalds if (status) 49811da177e4SLinus Torvalds return status; 49821da177e4SLinus Torvalds 4983c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4984c0eae66eSBenny Halevy if (unlikely(!p)) 4985c0eae66eSBenny Halevy goto out_overflow; 4986cccddf4fSBenny Halevy len = be32_to_cpup(p); 49871da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 49881da177e4SLinus Torvalds return -EIO; 49891da177e4SLinus Torvalds fh->size = len; 4990c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4991c0eae66eSBenny Halevy if (unlikely(!p)) 4992c0eae66eSBenny Halevy goto out_overflow; 499399398d06SBenny Halevy memcpy(fh->data, p, len); 49941da177e4SLinus Torvalds return 0; 4995c0eae66eSBenny Halevy out_overflow: 4996c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4997c0eae66eSBenny Halevy return -EIO; 49981da177e4SLinus Torvalds } 49991da177e4SLinus Torvalds 50001da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 50011da177e4SLinus Torvalds { 50021da177e4SLinus Torvalds int status; 50031da177e4SLinus Torvalds 50041da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 50051da177e4SLinus Torvalds if (status) 50061da177e4SLinus Torvalds return status; 50071da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 50081da177e4SLinus Torvalds } 50091da177e4SLinus Torvalds 50101da177e4SLinus Torvalds /* 50111da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 50121da177e4SLinus Torvalds */ 5013911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 50141da177e4SLinus Torvalds { 5015911d1aafSTrond Myklebust uint64_t offset, length, clientid; 50168687b63aSAl Viro __be32 *p; 5017911d1aafSTrond Myklebust uint32_t namelen, type; 50181da177e4SLinus Torvalds 5019babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 5020c0eae66eSBenny Halevy if (unlikely(!p)) 5021c0eae66eSBenny Halevy goto out_overflow; 5022babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 50233ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 5024babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 5025babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 5026911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 5027911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 5028911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 5029911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 5030911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 5031911d1aafSTrond Myklebust if (type & 1) 5032911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 5033911d1aafSTrond Myklebust fl->fl_pid = 0; 5034911d1aafSTrond Myklebust } 5035babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 5036babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 5037babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 5038c0eae66eSBenny Halevy if (likely(p)) 50391da177e4SLinus Torvalds return -NFS4ERR_DENIED; 5040c0eae66eSBenny Halevy out_overflow: 5041c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5042c0eae66eSBenny Halevy return -EIO; 50431da177e4SLinus Torvalds } 50441da177e4SLinus Torvalds 5045911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 50461da177e4SLinus Torvalds { 50471da177e4SLinus Torvalds int status; 50481da177e4SLinus Torvalds 50491da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 5050c1d51931STrond Myklebust if (status == -EIO) 5051c1d51931STrond Myklebust goto out; 50521da177e4SLinus Torvalds if (status == 0) { 505393b717fdSTrond Myklebust status = decode_lock_stateid(xdr, &res->stateid); 505407d30434SBenny Halevy if (unlikely(status)) 505507d30434SBenny Halevy goto out; 50561da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 5057c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 5058c1d51931STrond Myklebust if (res->open_seqid != NULL) 5059c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 5060c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 5061c1d51931STrond Myklebust out: 50621da177e4SLinus Torvalds return status; 50631da177e4SLinus Torvalds } 50641da177e4SLinus Torvalds 5065911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 50661da177e4SLinus Torvalds { 50671da177e4SLinus Torvalds int status; 50681da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 50691da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 5070911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 50711da177e4SLinus Torvalds return status; 50721da177e4SLinus Torvalds } 50731da177e4SLinus Torvalds 5074911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 50751da177e4SLinus Torvalds { 50761da177e4SLinus Torvalds int status; 50771da177e4SLinus Torvalds 50781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 5079c1d51931STrond Myklebust if (status != -EIO) 5080c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 508107d30434SBenny Halevy if (status == 0) 508293b717fdSTrond Myklebust status = decode_lock_stateid(xdr, &res->stateid); 50831da177e4SLinus Torvalds return status; 50841da177e4SLinus Torvalds } 50851da177e4SLinus Torvalds 5086d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 5087d3c7b7ccSTrond Myklebust { 5088d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 5089d3c7b7ccSTrond Myklebust } 5090d3c7b7ccSTrond Myklebust 50911da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 50921da177e4SLinus Torvalds { 50931da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 50941da177e4SLinus Torvalds } 50951da177e4SLinus Torvalds 50965b5faaf6SJeff Layton static int decode_lookupp(struct xdr_stream *xdr) 50975b5faaf6SJeff Layton { 50985b5faaf6SJeff Layton return decode_op_hdr(xdr, OP_LOOKUPP); 50995b5faaf6SJeff Layton } 51005b5faaf6SJeff Layton 51011da177e4SLinus Torvalds /* This is too sick! */ 51027d160a6cSTrond Myklebust static int decode_space_limit(struct xdr_stream *xdr, 51037d160a6cSTrond Myklebust unsigned long *pagemod_limit) 51041da177e4SLinus Torvalds { 51058687b63aSAl Viro __be32 *p; 51061da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 51077d160a6cSTrond Myklebust u64 maxsize = 0; 51081da177e4SLinus Torvalds 5109c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5110c0eae66eSBenny Halevy if (unlikely(!p)) 5111c0eae66eSBenny Halevy goto out_overflow; 51126f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 51131da177e4SLinus Torvalds switch (limit_type) { 51147d160a6cSTrond Myklebust case NFS4_LIMIT_SIZE: 51157d160a6cSTrond Myklebust xdr_decode_hyper(p, &maxsize); 51161da177e4SLinus Torvalds break; 51177d160a6cSTrond Myklebust case NFS4_LIMIT_BLOCKS: 51186f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 5119cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 51207d160a6cSTrond Myklebust maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 51211da177e4SLinus Torvalds } 512209cbfeafSKirill A. Shutemov maxsize >>= PAGE_SHIFT; 51237d160a6cSTrond Myklebust *pagemod_limit = min_t(u64, maxsize, ULONG_MAX); 51241da177e4SLinus Torvalds return 0; 5125c0eae66eSBenny Halevy out_overflow: 5126c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5127c0eae66eSBenny Halevy return -EIO; 51281da177e4SLinus Torvalds } 51291da177e4SLinus Torvalds 51306ae37339STrond Myklebust static int decode_rw_delegation(struct xdr_stream *xdr, 51316ae37339STrond Myklebust uint32_t delegation_type, 51326ae37339STrond Myklebust struct nfs_openres *res) 51331da177e4SLinus Torvalds { 51348687b63aSAl Viro __be32 *p; 513507d30434SBenny Halevy int status; 51361da177e4SLinus Torvalds 513793b717fdSTrond Myklebust status = decode_delegation_stateid(xdr, &res->delegation); 513807d30434SBenny Halevy if (unlikely(status)) 513907d30434SBenny Halevy return status; 5140c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5141c0eae66eSBenny Halevy if (unlikely(!p)) 5142c0eae66eSBenny Halevy goto out_overflow; 5143cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 514405d564feSAndy Adamson 51451da177e4SLinus Torvalds switch (delegation_type) { 51461da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 51471da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 51481da177e4SLinus Torvalds break; 51491da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 51501da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 51517d160a6cSTrond Myklebust if (decode_space_limit(xdr, &res->pagemod_limit) < 0) 51521da177e4SLinus Torvalds return -EIO; 51531da177e4SLinus Torvalds } 51541bbe60ffSTrond Myklebust return decode_ace(xdr, NULL); 5155c0eae66eSBenny Halevy out_overflow: 5156c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5157c0eae66eSBenny Halevy return -EIO; 51581da177e4SLinus Torvalds } 51591da177e4SLinus Torvalds 51606ae37339STrond Myklebust static int decode_no_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 51616ae37339STrond Myklebust { 51626ae37339STrond Myklebust __be32 *p; 51636ae37339STrond Myklebust uint32_t why_no_delegation; 51646ae37339STrond Myklebust 51656ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 51666ae37339STrond Myklebust if (unlikely(!p)) 51676ae37339STrond Myklebust goto out_overflow; 51686ae37339STrond Myklebust why_no_delegation = be32_to_cpup(p); 51696ae37339STrond Myklebust switch (why_no_delegation) { 51706ae37339STrond Myklebust case WND4_CONTENTION: 51716ae37339STrond Myklebust case WND4_RESOURCE: 51726ae37339STrond Myklebust xdr_inline_decode(xdr, 4); 51736ae37339STrond Myklebust /* Ignore for now */ 51746ae37339STrond Myklebust } 51756ae37339STrond Myklebust return 0; 51766ae37339STrond Myklebust out_overflow: 51776ae37339STrond Myklebust print_overflow_msg(__func__, xdr); 51786ae37339STrond Myklebust return -EIO; 51796ae37339STrond Myklebust } 51806ae37339STrond Myklebust 51816ae37339STrond Myklebust static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 51826ae37339STrond Myklebust { 51836ae37339STrond Myklebust __be32 *p; 51846ae37339STrond Myklebust uint32_t delegation_type; 51856ae37339STrond Myklebust 51866ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 51876ae37339STrond Myklebust if (unlikely(!p)) 51886ae37339STrond Myklebust goto out_overflow; 51896ae37339STrond Myklebust delegation_type = be32_to_cpup(p); 51906ae37339STrond Myklebust res->delegation_type = 0; 51916ae37339STrond Myklebust switch (delegation_type) { 51926ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE: 51936ae37339STrond Myklebust return 0; 51946ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_READ: 51956ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_WRITE: 51966ae37339STrond Myklebust return decode_rw_delegation(xdr, delegation_type, res); 51976ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE_EXT: 51986ae37339STrond Myklebust return decode_no_delegation(xdr, res); 51996ae37339STrond Myklebust } 52006ae37339STrond Myklebust return -EIO; 52016ae37339STrond Myklebust out_overflow: 52026ae37339STrond Myklebust print_overflow_msg(__func__, xdr); 52036ae37339STrond Myklebust return -EIO; 52046ae37339STrond Myklebust } 52056ae37339STrond Myklebust 52061da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 52071da177e4SLinus Torvalds { 52088687b63aSAl Viro __be32 *p; 5209aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 52101da177e4SLinus Torvalds int status; 52111da177e4SLinus Torvalds 5212c7848f69STrond Myklebust if (!__decode_op_hdr(xdr, OP_OPEN, &status)) 5213c7848f69STrond Myklebust return status; 5214c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 5215c7848f69STrond Myklebust if (status) 5216c7848f69STrond Myklebust return status; 521793b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 521807d30434SBenny Halevy if (unlikely(status)) 52191da177e4SLinus Torvalds return status; 52201da177e4SLinus Torvalds 52211da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 52221da177e4SLinus Torvalds 5223c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5224c0eae66eSBenny Halevy if (unlikely(!p)) 5225c0eae66eSBenny Halevy goto out_overflow; 52266f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 5227cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 52281da177e4SLinus Torvalds if (bmlen > 10) 52291da177e4SLinus Torvalds goto xdr_error; 52301da177e4SLinus Torvalds 5231c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5232c0eae66eSBenny Halevy if (unlikely(!p)) 5233c0eae66eSBenny Halevy goto out_overflow; 5234aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 5235aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 52366f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 5237aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 5238aa53ed54SJeff Layton res->attrset[i] = 0; 5239aa53ed54SJeff Layton 52401da177e4SLinus Torvalds return decode_delegation(xdr, res); 52411da177e4SLinus Torvalds xdr_error: 52423110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 52431da177e4SLinus Torvalds return -EIO; 5244c0eae66eSBenny Halevy out_overflow: 5245c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5246c0eae66eSBenny Halevy return -EIO; 52471da177e4SLinus Torvalds } 52481da177e4SLinus Torvalds 52491da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 52501da177e4SLinus Torvalds { 52511da177e4SLinus Torvalds int status; 52521da177e4SLinus Torvalds 52531da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 5254c1d51931STrond Myklebust if (status != -EIO) 5255c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 525607d30434SBenny Halevy if (!status) 525793b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 52581da177e4SLinus Torvalds return status; 52591da177e4SLinus Torvalds } 52601da177e4SLinus Torvalds 52611da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 52621da177e4SLinus Torvalds { 52631da177e4SLinus Torvalds int status; 52641da177e4SLinus Torvalds 52651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 5266c1d51931STrond Myklebust if (status != -EIO) 5267c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 526807d30434SBenny Halevy if (!status) 526993b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 52701da177e4SLinus Torvalds return status; 52711da177e4SLinus Torvalds } 52721da177e4SLinus Torvalds 52731da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 52741da177e4SLinus Torvalds { 52751da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 52761da177e4SLinus Torvalds } 52771da177e4SLinus Torvalds 52781da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 52791da177e4SLinus Torvalds { 52801da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 52811da177e4SLinus Torvalds } 52821da177e4SLinus Torvalds 52839137bdf3SAnna Schumaker static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, 52849137bdf3SAnna Schumaker struct nfs_pgio_res *res) 52851da177e4SLinus Torvalds { 52868687b63aSAl Viro __be32 *p; 528764bd577eSTrond Myklebust uint32_t count, eof, recvd; 52881da177e4SLinus Torvalds int status; 52891da177e4SLinus Torvalds 52901da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 52911da177e4SLinus Torvalds if (status) 52921da177e4SLinus Torvalds return status; 5293c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5294c0eae66eSBenny Halevy if (unlikely(!p)) 5295c0eae66eSBenny Halevy goto out_overflow; 52966f723f77SBenny Halevy eof = be32_to_cpup(p++); 5297cccddf4fSBenny Halevy count = be32_to_cpup(p); 529864bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 52991da177e4SLinus Torvalds if (count > recvd) { 5300fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 53011da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 53021da177e4SLinus Torvalds count = recvd; 53031da177e4SLinus Torvalds eof = 0; 53041da177e4SLinus Torvalds } 53051da177e4SLinus Torvalds res->eof = eof; 53061da177e4SLinus Torvalds res->count = count; 53071da177e4SLinus Torvalds return 0; 5308c0eae66eSBenny Halevy out_overflow: 5309c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5310c0eae66eSBenny Halevy return -EIO; 53111da177e4SLinus Torvalds } 53121da177e4SLinus Torvalds 53131da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 53141da177e4SLinus Torvalds { 5315bcecff77SChuck Lever int status; 5316cd93710eSChuck Lever __be32 verf[2]; 53171da177e4SLinus Torvalds 53181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 5319db942bbdSBenny Halevy if (!status) 5320db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 5321db942bbdSBenny Halevy if (unlikely(status)) 53221da177e4SLinus Torvalds return status; 5323cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 532444109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 5325cd93710eSChuck Lever __func__, verf[0], verf[1]); 532664bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 53271da177e4SLinus Torvalds } 53281da177e4SLinus Torvalds 53291da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 53301da177e4SLinus Torvalds { 53311da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 5332bcecff77SChuck Lever u32 len, recvd; 53338687b63aSAl Viro __be32 *p; 53341da177e4SLinus Torvalds int status; 53351da177e4SLinus Torvalds 53361da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 53371da177e4SLinus Torvalds if (status) 53381da177e4SLinus Torvalds return status; 53391da177e4SLinus Torvalds 53401da177e4SLinus Torvalds /* Convert length of symlink */ 5341c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5342c0eae66eSBenny Halevy if (unlikely(!p)) 5343c0eae66eSBenny Halevy goto out_overflow; 5344cccddf4fSBenny Halevy len = be32_to_cpup(p); 53451da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 5346fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 53471da177e4SLinus Torvalds return -ENAMETOOLONG; 53481da177e4SLinus Torvalds } 534964bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 53501da177e4SLinus Torvalds if (recvd < len) { 5351fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 53521da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 53531da177e4SLinus Torvalds return -EIO; 53541da177e4SLinus Torvalds } 53551da177e4SLinus Torvalds /* 53561da177e4SLinus Torvalds * The XDR encode routine has set things up so that 53571da177e4SLinus Torvalds * the link text will be copied directly into the 53581da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 53591da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 53601da177e4SLinus Torvalds * null-termination). 53611da177e4SLinus Torvalds */ 5362b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 53631da177e4SLinus Torvalds return 0; 5364c0eae66eSBenny Halevy out_overflow: 5365c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5366c0eae66eSBenny Halevy return -EIO; 53671da177e4SLinus Torvalds } 53681da177e4SLinus Torvalds 53691da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 53701da177e4SLinus Torvalds { 53711da177e4SLinus Torvalds int status; 53721da177e4SLinus Torvalds 53731da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 53741da177e4SLinus Torvalds if (status) 53751da177e4SLinus Torvalds goto out; 53761da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 53771da177e4SLinus Torvalds out: 53781da177e4SLinus Torvalds return status; 53791da177e4SLinus Torvalds } 53801da177e4SLinus Torvalds 53811da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 53821da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 53831da177e4SLinus Torvalds { 53841da177e4SLinus Torvalds int status; 53851da177e4SLinus Torvalds 53861da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 53871da177e4SLinus Torvalds if (status) 53881da177e4SLinus Torvalds goto out; 53891da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 53901da177e4SLinus Torvalds goto out; 53911da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 53921da177e4SLinus Torvalds out: 53931da177e4SLinus Torvalds return status; 53941da177e4SLinus Torvalds } 53951da177e4SLinus Torvalds 53961da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 53971da177e4SLinus Torvalds { 53981da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 53991da177e4SLinus Torvalds } 54001da177e4SLinus Torvalds 540156ae19f3STrond Myklebust static int 540256ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 540356ae19f3STrond Myklebust { 540456ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 540556ae19f3STrond Myklebust } 540656ae19f3STrond Myklebust 5407029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5408bf118a34SAndy Adamson struct nfs_getaclres *res) 5409029d105eSJ. Bruce Fields { 5410256e48bbSTrond Myklebust unsigned int savep; 5411029d105eSJ. Bruce Fields uint32_t attrlen, 5412dae100c2SFred Isaman bitmap[3] = {0}; 5413029d105eSJ. Bruce Fields int status; 5414cff298c7STrond Myklebust unsigned int pg_offset; 5415029d105eSJ. Bruce Fields 5416bf118a34SAndy Adamson res->acl_len = 0; 5417029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5418029d105eSJ. Bruce Fields goto out; 54195a006899SSachin Prabhu 5420519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5421519d3959STrond Myklebust 5422cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5423cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 54245a006899SSachin Prabhu 5425029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5426029d105eSJ. Bruce Fields goto out; 5427029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5428029d105eSJ. Bruce Fields goto out; 5429029d105eSJ. Bruce Fields 5430029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5431029d105eSJ. Bruce Fields return -EIO; 5432029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5433029d105eSJ. Bruce Fields 5434bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5435bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5436bf118a34SAndy Adamson * variable length bitmaps.*/ 5437cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5438519d3959STrond Myklebust res->acl_len = attrlen; 54391f1ea6c2STrond Myklebust 54401f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 54411f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 54421f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 54431f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5444519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5445cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5446029d105eSJ. Bruce Fields } 54478c233cf9SJ. Bruce Fields } else 54488c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5449029d105eSJ. Bruce Fields 5450029d105eSJ. Bruce Fields out: 5451029d105eSJ. Bruce Fields return status; 5452029d105eSJ. Bruce Fields } 5453029d105eSJ. Bruce Fields 54541da177e4SLinus Torvalds static int 54551da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 54561da177e4SLinus Torvalds { 54571da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 54581da177e4SLinus Torvalds } 54591da177e4SLinus Torvalds 54609e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 54611da177e4SLinus Torvalds { 54621da177e4SLinus Torvalds int status; 54631da177e4SLinus Torvalds 54641da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 54651da177e4SLinus Torvalds if (status) 54661da177e4SLinus Torvalds return status; 546737c88763STrond Myklebust if (decode_bitmap4(xdr, NULL, 0) >= 0) 54681da177e4SLinus Torvalds return 0; 5469c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5470c0eae66eSBenny Halevy return -EIO; 54711da177e4SLinus Torvalds } 54721da177e4SLinus Torvalds 5473bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 54741da177e4SLinus Torvalds { 54758687b63aSAl Viro __be32 *p; 54761da177e4SLinus Torvalds uint32_t opnum; 54771da177e4SLinus Torvalds int32_t nfserr; 54781da177e4SLinus Torvalds 5479c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5480c0eae66eSBenny Halevy if (unlikely(!p)) 5481c0eae66eSBenny Halevy goto out_overflow; 54826f723f77SBenny Halevy opnum = be32_to_cpup(p++); 54831da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5484fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 54851da177e4SLinus Torvalds " %d\n", opnum); 54861da177e4SLinus Torvalds return -EIO; 54871da177e4SLinus Torvalds } 5488cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 54891da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5490c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5491c0eae66eSBenny Halevy if (unlikely(!p)) 5492c0eae66eSBenny Halevy goto out_overflow; 5493bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5494bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 54951da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 54961da177e4SLinus Torvalds uint32_t len; 54971da177e4SLinus Torvalds 54981da177e4SLinus Torvalds /* skip netid string */ 5499c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5500c0eae66eSBenny Halevy if (unlikely(!p)) 5501c0eae66eSBenny Halevy goto out_overflow; 5502cccddf4fSBenny Halevy len = be32_to_cpup(p); 5503c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5504c0eae66eSBenny Halevy if (unlikely(!p)) 5505c0eae66eSBenny Halevy goto out_overflow; 55061da177e4SLinus Torvalds 55071da177e4SLinus Torvalds /* skip uaddr string */ 5508c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5509c0eae66eSBenny Halevy if (unlikely(!p)) 5510c0eae66eSBenny Halevy goto out_overflow; 5511cccddf4fSBenny Halevy len = be32_to_cpup(p); 5512c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5513c0eae66eSBenny Halevy if (unlikely(!p)) 5514c0eae66eSBenny Halevy goto out_overflow; 55151da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 55161da177e4SLinus Torvalds } else 5517856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 55181da177e4SLinus Torvalds 55191da177e4SLinus Torvalds return 0; 5520c0eae66eSBenny Halevy out_overflow: 5521c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5522c0eae66eSBenny Halevy return -EIO; 55231da177e4SLinus Torvalds } 55241da177e4SLinus Torvalds 55251da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 55261da177e4SLinus Torvalds { 55271da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 55281da177e4SLinus Torvalds } 55291da177e4SLinus Torvalds 55309137bdf3SAnna Schumaker static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res) 55311da177e4SLinus Torvalds { 55328687b63aSAl Viro __be32 *p; 55331da177e4SLinus Torvalds int status; 55341da177e4SLinus Torvalds 55351da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 55361da177e4SLinus Torvalds if (status) 55371da177e4SLinus Torvalds return status; 55381da177e4SLinus Torvalds 55392f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5540c0eae66eSBenny Halevy if (unlikely(!p)) 5541c0eae66eSBenny Halevy goto out_overflow; 55426f723f77SBenny Halevy res->count = be32_to_cpup(p++); 55436f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 55442f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5545c0eae66eSBenny Halevy out_overflow: 5546c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5547c0eae66eSBenny Halevy return -EIO; 55481da177e4SLinus Torvalds } 55491da177e4SLinus Torvalds 55501da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 55511da177e4SLinus Torvalds { 55521da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 55531da177e4SLinus Torvalds } 55541da177e4SLinus Torvalds 5555fb15b26fSChuck Lever static int decode_secinfo_gss(struct xdr_stream *xdr, 5556fb15b26fSChuck Lever struct nfs4_secinfo4 *flavor) 55575a5ea0d4SBryan Schumaker { 5558fb15b26fSChuck Lever u32 oid_len; 55595a5ea0d4SBryan Schumaker __be32 *p; 55605a5ea0d4SBryan Schumaker 55615a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 55625a5ea0d4SBryan Schumaker if (unlikely(!p)) 55635a5ea0d4SBryan Schumaker goto out_overflow; 5564fb15b26fSChuck Lever oid_len = be32_to_cpup(p); 5565fb15b26fSChuck Lever if (oid_len > GSS_OID_MAX_LEN) 55665a5ea0d4SBryan Schumaker goto out_err; 55675a5ea0d4SBryan Schumaker 5568fb15b26fSChuck Lever p = xdr_inline_decode(xdr, oid_len); 55695a5ea0d4SBryan Schumaker if (unlikely(!p)) 55705a5ea0d4SBryan Schumaker goto out_overflow; 5571fb15b26fSChuck Lever memcpy(flavor->flavor_info.oid.data, p, oid_len); 5572fb15b26fSChuck Lever flavor->flavor_info.oid.len = oid_len; 55735a5ea0d4SBryan Schumaker 55745a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 55755a5ea0d4SBryan Schumaker if (unlikely(!p)) 55765a5ea0d4SBryan Schumaker goto out_overflow; 5577fb15b26fSChuck Lever flavor->flavor_info.qop = be32_to_cpup(p++); 5578fb15b26fSChuck Lever flavor->flavor_info.service = be32_to_cpup(p); 55795a5ea0d4SBryan Schumaker 55805a5ea0d4SBryan Schumaker return 0; 55815a5ea0d4SBryan Schumaker 55825a5ea0d4SBryan Schumaker out_overflow: 55835a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 55845a5ea0d4SBryan Schumaker return -EIO; 55855a5ea0d4SBryan Schumaker out_err: 55865a5ea0d4SBryan Schumaker return -EINVAL; 55875a5ea0d4SBryan Schumaker } 55885a5ea0d4SBryan Schumaker 558931e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 55905a5ea0d4SBryan Schumaker { 5591fb15b26fSChuck Lever struct nfs4_secinfo4 *sec_flavor; 5592fb15b26fSChuck Lever unsigned int i, num_flavors; 55935a5ea0d4SBryan Schumaker int status; 55945a5ea0d4SBryan Schumaker __be32 *p; 55955a5ea0d4SBryan Schumaker 55965a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 55975a5ea0d4SBryan Schumaker if (unlikely(!p)) 55985a5ea0d4SBryan Schumaker goto out_overflow; 55995a5ea0d4SBryan Schumaker 5600c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5601c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5602c3dfc280SBryan Schumaker 5603c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 56045a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5605c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 56065a5ea0d4SBryan Schumaker break; 56075a5ea0d4SBryan Schumaker 56085a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 56095a5ea0d4SBryan Schumaker if (unlikely(!p)) 56105a5ea0d4SBryan Schumaker goto out_overflow; 56115a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 56125a5ea0d4SBryan Schumaker 56135a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5614613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5615613e901eSBryan Schumaker if (status) 5616613e901eSBryan Schumaker goto out; 56175a5ea0d4SBryan Schumaker } 5618c3dfc280SBryan Schumaker res->flavors->num_flavors++; 56195a5ea0d4SBryan Schumaker } 56205a5ea0d4SBryan Schumaker 562131e4dda4SBryan Schumaker status = 0; 5622613e901eSBryan Schumaker out: 5623613e901eSBryan Schumaker return status; 56245a5ea0d4SBryan Schumaker out_overflow: 56255a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 56265a5ea0d4SBryan Schumaker return -EIO; 56275a5ea0d4SBryan Schumaker } 56285a5ea0d4SBryan Schumaker 562931e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 563031e4dda4SBryan Schumaker { 563131e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 563231e4dda4SBryan Schumaker if (status) 563331e4dda4SBryan Schumaker return status; 563431e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 563531e4dda4SBryan Schumaker } 563631e4dda4SBryan Schumaker 563799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 563831e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 563931e4dda4SBryan Schumaker { 564031e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 564131e4dda4SBryan Schumaker if (status) 564231e4dda4SBryan Schumaker return status; 564331e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 564431e4dda4SBryan Schumaker } 564531e4dda4SBryan Schumaker 56462031cd1aSWeston Andros Adamson static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 56472031cd1aSWeston Andros Adamson { 56482031cd1aSWeston Andros Adamson __be32 *p; 56492031cd1aSWeston Andros Adamson uint32_t bitmap_words; 56502031cd1aSWeston Andros Adamson unsigned int i; 56512031cd1aSWeston Andros Adamson 56522031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 56534edabfd7SPan Bian if (!p) 56544edabfd7SPan Bian return -EIO; 56552031cd1aSWeston Andros Adamson bitmap_words = be32_to_cpup(p++); 56562031cd1aSWeston Andros Adamson if (bitmap_words > NFS4_OP_MAP_NUM_WORDS) 56572031cd1aSWeston Andros Adamson return -EIO; 56582031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4 * bitmap_words); 56592031cd1aSWeston Andros Adamson for (i = 0; i < bitmap_words; i++) 56602031cd1aSWeston Andros Adamson op_map->u.words[i] = be32_to_cpup(p++); 56612031cd1aSWeston Andros Adamson 56622031cd1aSWeston Andros Adamson return 0; 56632031cd1aSWeston Andros Adamson } 56642031cd1aSWeston Andros Adamson 566599fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 566699fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 566799fe60d0SBenny Halevy { 566899fe60d0SBenny Halevy __be32 *p; 566999fe60d0SBenny Halevy uint32_t dummy; 56702460ba57SBenny Halevy char *dummy_str; 567199fe60d0SBenny Halevy int status; 56727d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 567399fe60d0SBenny Halevy 567499fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 567599fe60d0SBenny Halevy if (status) 567699fe60d0SBenny Halevy return status; 567799fe60d0SBenny Halevy 5678c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5679c0eae66eSBenny Halevy if (unlikely(!p)) 5680c0eae66eSBenny Halevy goto out_overflow; 568132b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5682c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5683c0eae66eSBenny Halevy if (unlikely(!p)) 5684c0eae66eSBenny Halevy goto out_overflow; 568532b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 568632b01310STrond Myklebust res->flags = be32_to_cpup(p++); 568799fe60d0SBenny Halevy 56882031cd1aSWeston Andros Adamson res->state_protect.how = be32_to_cpup(p); 56892031cd1aSWeston Andros Adamson switch (res->state_protect.how) { 56902031cd1aSWeston Andros Adamson case SP4_NONE: 56912031cd1aSWeston Andros Adamson break; 56922031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 56932031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.enforce); 56942031cd1aSWeston Andros Adamson if (status) 56952031cd1aSWeston Andros Adamson return status; 56962031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.allow); 56972031cd1aSWeston Andros Adamson if (status) 56982031cd1aSWeston Andros Adamson return status; 56992031cd1aSWeston Andros Adamson break; 57002031cd1aSWeston Andros Adamson default: 57012031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 570299fe60d0SBenny Halevy return -EIO; 57032031cd1aSWeston Andros Adamson } 570499fe60d0SBenny Halevy 5705acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5706c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5707c0eae66eSBenny Halevy if (unlikely(!p)) 5708c0eae66eSBenny Halevy goto out_overflow; 5709acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 571099fe60d0SBenny Halevy 5711acdeb69dSChuck Lever /* server_owner4.so_major_id */ 57122460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 57132460ba57SBenny Halevy if (unlikely(status)) 57142460ba57SBenny Halevy return status; 5715acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5716acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 571778fe0f41SWeston Andros Adamson 5718acdeb69dSChuck Lever /* server_scope4 */ 5719acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5720acdeb69dSChuck Lever if (unlikely(status)) 5721acdeb69dSChuck Lever return status; 572278fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 572378fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 572478fe0f41SWeston Andros Adamson 57257d2ed9acSWeston Andros Adamson /* Implementation Id */ 57267d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 57277d2ed9acSWeston Andros Adamson if (unlikely(!p)) 57287d2ed9acSWeston Andros Adamson goto out_overflow; 57297d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 57307d2ed9acSWeston Andros Adamson 57317d2ed9acSWeston Andros Adamson if (impl_id_count) { 57327d2ed9acSWeston Andros Adamson /* nii_domain */ 57332460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 57342460ba57SBenny Halevy if (unlikely(status)) 57352460ba57SBenny Halevy return status; 57367d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 573799fe60d0SBenny Halevy 57387d2ed9acSWeston Andros Adamson /* nii_name */ 57397d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 57407d2ed9acSWeston Andros Adamson if (unlikely(status)) 57417d2ed9acSWeston Andros Adamson return status; 57427d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 57437d2ed9acSWeston Andros Adamson 57447d2ed9acSWeston Andros Adamson /* nii_date */ 57457d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 57467d2ed9acSWeston Andros Adamson if (unlikely(!p)) 57477d2ed9acSWeston Andros Adamson goto out_overflow; 57487d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 57497d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 57507d2ed9acSWeston Andros Adamson 57517d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 57527d2ed9acSWeston Andros Adamson } 575399fe60d0SBenny Halevy return 0; 5754c0eae66eSBenny Halevy out_overflow: 5755c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5756c0eae66eSBenny Halevy return -EIO; 575799fe60d0SBenny Halevy } 5758fc931582SAndy Adamson 5759fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5760fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5761fc931582SAndy Adamson { 5762fc931582SAndy Adamson __be32 *p; 5763c9c30dd5SBenny Halevy u32 nr_attrs, val; 5764fc931582SAndy Adamson 5765c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5766c0eae66eSBenny Halevy if (unlikely(!p)) 5767c0eae66eSBenny Halevy goto out_overflow; 5768c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5769c9c30dd5SBenny Halevy if (val) 5770c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 57716f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 57726f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 57736f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 57746f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 57756f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5776cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5777fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5778a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5779a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5780fc931582SAndy Adamson return -EINVAL; 5781fc931582SAndy Adamson } 5782c0eae66eSBenny Halevy if (nr_attrs == 1) { 5783c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5784c0eae66eSBenny Halevy if (unlikely(!p)) 5785c0eae66eSBenny Halevy goto out_overflow; 5786c0eae66eSBenny Halevy } 5787fc931582SAndy Adamson return 0; 5788c0eae66eSBenny Halevy out_overflow: 5789c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5790c0eae66eSBenny Halevy return -EIO; 5791fc931582SAndy Adamson } 5792fc931582SAndy Adamson 5793e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5794e78291e4SBenny Halevy { 5795e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5796fc931582SAndy Adamson } 5797fc931582SAndy Adamson 57987c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 57997c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 58007c44f1aeSWeston Andros Adamson { 58017c44f1aeSWeston Andros Adamson __be32 *p; 58027c44f1aeSWeston Andros Adamson int status; 58037c44f1aeSWeston Andros Adamson 58047c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 58057c44f1aeSWeston Andros Adamson if (!status) 580671a097c6STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 58077c44f1aeSWeston Andros Adamson if (unlikely(status)) 58087c44f1aeSWeston Andros Adamson return status; 58097c44f1aeSWeston Andros Adamson 58107c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 58117c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 58127c44f1aeSWeston Andros Adamson if (unlikely(!p)) 58137c44f1aeSWeston Andros Adamson goto out_overflow; 58147c44f1aeSWeston Andros Adamson 58157c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 58167c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 58177c44f1aeSWeston Andros Adamson return -EIO; 58187c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 58197c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 58207c44f1aeSWeston Andros Adamson else 58217c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 58227c44f1aeSWeston Andros Adamson 58237c44f1aeSWeston Andros Adamson return 0; 58247c44f1aeSWeston Andros Adamson out_overflow: 58257c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 58267c44f1aeSWeston Andros Adamson return -EIO; 58277c44f1aeSWeston Andros Adamson } 58287c44f1aeSWeston Andros Adamson 5829fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5830fc931582SAndy Adamson struct nfs41_create_session_res *res) 5831fc931582SAndy Adamson { 5832fc931582SAndy Adamson __be32 *p; 5833fc931582SAndy Adamson int status; 5834fc931582SAndy Adamson 5835fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5836e78291e4SBenny Halevy if (!status) 583779969dd1STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 5838e78291e4SBenny Halevy if (unlikely(status)) 5839fc931582SAndy Adamson return status; 5840fc931582SAndy Adamson 5841fc931582SAndy Adamson /* seqid, flags */ 5842c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5843c0eae66eSBenny Halevy if (unlikely(!p)) 5844c0eae66eSBenny Halevy goto out_overflow; 584579969dd1STrond Myklebust res->seqid = be32_to_cpup(p++); 584679969dd1STrond Myklebust res->flags = be32_to_cpup(p); 5847fc931582SAndy Adamson 5848fc931582SAndy Adamson /* Channel attributes */ 584979969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->fc_attrs); 5850fc931582SAndy Adamson if (!status) 585179969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->bc_attrs); 5852fc931582SAndy Adamson return status; 5853c0eae66eSBenny Halevy out_overflow: 5854c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5855c0eae66eSBenny Halevy return -EIO; 5856fc931582SAndy Adamson } 58570f3e66c6SAndy Adamson 58580f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 58590f3e66c6SAndy Adamson { 58600f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 58610f3e66c6SAndy Adamson } 586218019753SRicardo Labiaga 586366245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 586466245539STrond Myklebust { 586566245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 586666245539STrond Myklebust } 586766245539STrond Myklebust 586818019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 586918019753SRicardo Labiaga { 587018019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 587118019753SRicardo Labiaga } 587299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 587399fe60d0SBenny Halevy 58749b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 58759b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 58769b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 58779b7b9fccSAndy Adamson { 58789b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5879e3725ec0STrond Myklebust struct nfs4_session *session; 5880fc01cea9SAndy Adamson struct nfs4_sessionid id; 5881fc01cea9SAndy Adamson u32 dummy; 5882fc01cea9SAndy Adamson int status; 5883fc01cea9SAndy Adamson __be32 *p; 5884fc01cea9SAndy Adamson 5885e3725ec0STrond Myklebust if (res->sr_slot == NULL) 58869b7b9fccSAndy Adamson return 0; 58873bd2384aSChuck Lever if (!res->sr_slot->table->session) 58883bd2384aSChuck Lever return 0; 58899b7b9fccSAndy Adamson 5890fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5891e78291e4SBenny Halevy if (!status) 5892e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5893e78291e4SBenny Halevy if (unlikely(status)) 5894fc01cea9SAndy Adamson goto out_err; 58959b7b9fccSAndy Adamson 5896fc01cea9SAndy Adamson /* 5897fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5898fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5899fc01cea9SAndy Adamson */ 5900fdcb4577STrond Myklebust status = -EREMOTEIO; 5901e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5902fc01cea9SAndy Adamson 5903e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5904fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5905fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5906fc01cea9SAndy Adamson goto out_err; 5907fc01cea9SAndy Adamson } 5908e78291e4SBenny Halevy 5909c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5910c0eae66eSBenny Halevy if (unlikely(!p)) 5911c0eae66eSBenny Halevy goto out_overflow; 5912e78291e4SBenny Halevy 5913fc01cea9SAndy Adamson /* seqid */ 59146f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5915dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5916fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5917fc01cea9SAndy Adamson goto out_err; 5918fc01cea9SAndy Adamson } 5919fc01cea9SAndy Adamson /* slot id */ 59206f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5921df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5922fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5923fc01cea9SAndy Adamson goto out_err; 5924fc01cea9SAndy Adamson } 5925da0507b7STrond Myklebust /* highest slot id */ 5926da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5927464ee9f9STrond Myklebust /* target highest slot id */ 5928464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 59290629e370SAlexandros Batsakis /* result flags */ 59300629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5931fc01cea9SAndy Adamson status = 0; 5932fc01cea9SAndy Adamson out_err: 5933fc01cea9SAndy Adamson res->sr_status = status; 5934fc01cea9SAndy Adamson return status; 5935c0eae66eSBenny Halevy out_overflow: 5936c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5937c0eae66eSBenny Halevy status = -EIO; 5938c0eae66eSBenny Halevy goto out_err; 5939fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 59409b7b9fccSAndy Adamson return 0; 5941fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 59429b7b9fccSAndy Adamson } 59439b7b9fccSAndy Adamson 5944b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 594593b717fdSTrond Myklebust static int decode_layout_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 594693b717fdSTrond Myklebust { 594793b717fdSTrond Myklebust stateid->type = NFS4_LAYOUT_STATEID_TYPE; 594893b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 594993b717fdSTrond Myklebust } 595093b717fdSTrond Myklebust 5951b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 59524e590803STrond Myklebust struct nfs4_getdeviceinfo_res *res) 5953b1f69b75SAndy Adamson { 59544e590803STrond Myklebust struct pnfs_device *pdev = res->pdev; 5955b1f69b75SAndy Adamson __be32 *p; 5956b1f69b75SAndy Adamson uint32_t len, type; 5957b1f69b75SAndy Adamson int status; 5958b1f69b75SAndy Adamson 5959b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5960b1f69b75SAndy Adamson if (status) { 5961b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5962b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5963b1f69b75SAndy Adamson if (unlikely(!p)) 5964b1f69b75SAndy Adamson goto out_overflow; 5965b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5966b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5967b1f69b75SAndy Adamson __func__, pdev->mincount); 5968b1f69b75SAndy Adamson } 5969b1f69b75SAndy Adamson return status; 5970b1f69b75SAndy Adamson } 5971b1f69b75SAndy Adamson 5972b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5973b1f69b75SAndy Adamson if (unlikely(!p)) 5974b1f69b75SAndy Adamson goto out_overflow; 5975b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5976b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5977b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5978b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5979b1f69b75SAndy Adamson return -EINVAL; 5980b1f69b75SAndy Adamson } 5981b1f69b75SAndy Adamson /* 5982b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5983b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5984b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5985b1f69b75SAndy Adamson */ 5986b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 598713fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 598813fe4ba1STrond Myklebust goto out_overflow; 5989b1f69b75SAndy Adamson 5990b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5991b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5992b1f69b75SAndy Adamson if (unlikely(!p)) 5993b1f69b75SAndy Adamson goto out_overflow; 5994b1f69b75SAndy Adamson len = be32_to_cpup(p); 5995b1f69b75SAndy Adamson if (len) { 5996ead00597SChuck Lever uint32_t i; 5997b1f69b75SAndy Adamson 5998b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5999b1f69b75SAndy Adamson if (unlikely(!p)) 6000b1f69b75SAndy Adamson goto out_overflow; 600184c9dee3SChristoph Hellwig 60024e590803STrond Myklebust res->notification = be32_to_cpup(p++); 600384c9dee3SChristoph Hellwig for (i = 1; i < len; i++) { 600484c9dee3SChristoph Hellwig if (be32_to_cpup(p++)) { 600584c9dee3SChristoph Hellwig dprintk("%s: unsupported notification\n", 6006b1f69b75SAndy Adamson __func__); 6007b1f69b75SAndy Adamson return -EIO; 6008b1f69b75SAndy Adamson } 6009b1f69b75SAndy Adamson } 6010b1f69b75SAndy Adamson } 6011b1f69b75SAndy Adamson return 0; 6012b1f69b75SAndy Adamson out_overflow: 6013b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 6014b1f69b75SAndy Adamson return -EIO; 6015b1f69b75SAndy Adamson } 6016b1f69b75SAndy Adamson 6017b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 6018b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6019b1f69b75SAndy Adamson { 6020b1f69b75SAndy Adamson __be32 *p; 6021b1f69b75SAndy Adamson int status; 6022b1f69b75SAndy Adamson u32 layout_count; 602364bd577eSTrond Myklebust u32 recvd; 6024b1f69b75SAndy Adamson 6025b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 6026b1f69b75SAndy Adamson if (status) 6027b1f69b75SAndy Adamson return status; 6028ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 6029b1f69b75SAndy Adamson if (unlikely(!p)) 6030b1f69b75SAndy Adamson goto out_overflow; 6031ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 603293b717fdSTrond Myklebust decode_layout_stateid(xdr, &res->stateid); 6033ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 6034ea9d23f5STrond Myklebust if (unlikely(!p)) 6035ea9d23f5STrond Myklebust goto out_overflow; 6036b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 6037b1f69b75SAndy Adamson if (!layout_count) { 6038b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 6039b1f69b75SAndy Adamson __func__); 6040b1f69b75SAndy Adamson return -EINVAL; 6041b1f69b75SAndy Adamson } 6042b1f69b75SAndy Adamson 604335124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 6044b1f69b75SAndy Adamson if (unlikely(!p)) 6045b1f69b75SAndy Adamson goto out_overflow; 6046b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 6047b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 6048b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 6049b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 605035124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 6051b1f69b75SAndy Adamson 6052b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 6053b1f69b75SAndy Adamson __func__, 6054b1f69b75SAndy Adamson (unsigned long)res->range.offset, 6055b1f69b75SAndy Adamson (unsigned long)res->range.length, 6056b1f69b75SAndy Adamson res->range.iomode, 6057b1f69b75SAndy Adamson res->type, 605835124a09SWeston Andros Adamson res->layoutp->len); 6059b1f69b75SAndy Adamson 606064bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 606135124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 606235124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 606335124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 606435124a09SWeston Andros Adamson res->layoutp->len, recvd); 606535124a09SWeston Andros Adamson return -EINVAL; 606635124a09SWeston Andros Adamson } 606735124a09SWeston Andros Adamson 6068b1f69b75SAndy Adamson if (layout_count > 1) { 6069b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 6070b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 6071b1f69b75SAndy Adamson * the client may see a response that is less than the 6072b1f69b75SAndy Adamson * minimum it requested. 6073b1f69b75SAndy Adamson */ 6074b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 6075b1f69b75SAndy Adamson __func__, layout_count); 6076b1f69b75SAndy Adamson } 6077b1f69b75SAndy Adamson 6078b1f69b75SAndy Adamson return 0; 6079b1f69b75SAndy Adamson out_overflow: 6080b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 6081b1f69b75SAndy Adamson return -EIO; 6082b1f69b75SAndy Adamson } 6083863a3c6cSAndy Adamson 6084cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 6085cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6086cbe82603SBenny Halevy { 6087cbe82603SBenny Halevy __be32 *p; 6088cbe82603SBenny Halevy int status; 6089cbe82603SBenny Halevy 6090cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 6091cbe82603SBenny Halevy if (status) 6092cbe82603SBenny Halevy return status; 6093cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 6094cbe82603SBenny Halevy if (unlikely(!p)) 6095cbe82603SBenny Halevy goto out_overflow; 6096cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 6097cbe82603SBenny Halevy if (res->lrs_present) 609893b717fdSTrond Myklebust status = decode_layout_stateid(xdr, &res->stateid); 6099fcd8843cSTrond Myklebust else 6100fcd8843cSTrond Myklebust nfs4_stateid_copy(&res->stateid, &invalid_stateid); 6101cbe82603SBenny Halevy return status; 6102cbe82603SBenny Halevy out_overflow: 6103cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 6104cbe82603SBenny Halevy return -EIO; 6105cbe82603SBenny Halevy } 6106cbe82603SBenny Halevy 6107863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 6108863a3c6cSAndy Adamson struct rpc_rqst *req, 6109863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6110863a3c6cSAndy Adamson { 6111863a3c6cSAndy Adamson __be32 *p; 6112863a3c6cSAndy Adamson __u32 sizechanged; 6113863a3c6cSAndy Adamson int status; 6114863a3c6cSAndy Adamson 6115863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 6116db29c089SAndy Adamson res->status = status; 6117863a3c6cSAndy Adamson if (status) 6118863a3c6cSAndy Adamson return status; 6119863a3c6cSAndy Adamson 6120863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 6121863a3c6cSAndy Adamson if (unlikely(!p)) 6122863a3c6cSAndy Adamson goto out_overflow; 6123863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 6124863a3c6cSAndy Adamson 6125863a3c6cSAndy Adamson if (sizechanged) { 6126863a3c6cSAndy Adamson /* throw away new size */ 6127863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 6128863a3c6cSAndy Adamson if (unlikely(!p)) 6129863a3c6cSAndy Adamson goto out_overflow; 6130863a3c6cSAndy Adamson } 6131863a3c6cSAndy Adamson return 0; 6132863a3c6cSAndy Adamson out_overflow: 6133863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 6134863a3c6cSAndy Adamson return -EIO; 6135863a3c6cSAndy Adamson } 61367d974794SBryan Schumaker 61377d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 61387d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 61397d974794SBryan Schumaker { 61407d974794SBryan Schumaker __be32 *p; 61417d974794SBryan Schumaker int status; 61427d974794SBryan Schumaker int num_res; 61437d974794SBryan Schumaker 61447d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 61457d974794SBryan Schumaker if (status) 61467d974794SBryan Schumaker return status; 61477d974794SBryan Schumaker 61487d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 61497d974794SBryan Schumaker if (unlikely(!p)) 61507d974794SBryan Schumaker goto out_overflow; 61517d974794SBryan Schumaker num_res = be32_to_cpup(p++); 61527d974794SBryan Schumaker if (num_res != 1) 61537d974794SBryan Schumaker goto out; 61547d974794SBryan Schumaker 61557d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 61567d974794SBryan Schumaker if (unlikely(!p)) 61577d974794SBryan Schumaker goto out_overflow; 61587d974794SBryan Schumaker res->status = be32_to_cpup(p++); 61591cab0652SBryan Schumaker 61601cab0652SBryan Schumaker return status; 61617d974794SBryan Schumaker out_overflow: 61627d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 61637d974794SBryan Schumaker out: 61647d974794SBryan Schumaker return -EIO; 61657d974794SBryan Schumaker } 61669aeda35fSBryan Schumaker 61679aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 61689aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 61699aeda35fSBryan Schumaker { 61709f79fb48SAndy Adamson res->status = decode_op_hdr(xdr, OP_FREE_STATEID); 61719aeda35fSBryan Schumaker return res->status; 61729aeda35fSBryan Schumaker } 6173cf805165STrond Myklebust #else 6174cf805165STrond Myklebust static inline 6175cf805165STrond Myklebust int decode_layoutreturn(struct xdr_stream *xdr, 6176cf805165STrond Myklebust struct nfs4_layoutreturn_res *res) 6177cf805165STrond Myklebust { 6178cf805165STrond Myklebust return 0; 6179cf805165STrond Myklebust } 6180b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 6181b1f69b75SAndy Adamson 61821da177e4SLinus Torvalds /* 618349c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 618449c2559eSBenny Halevy */ 618549c2559eSBenny Halevy 618649c2559eSBenny Halevy /* 61871da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 61881da177e4SLinus Torvalds */ 6189bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 6190bf269551SChuck Lever struct xdr_stream *xdr, 6191fc016483SChristoph Hellwig void *data) 61921da177e4SLinus Torvalds { 6193fc016483SChristoph Hellwig struct nfs_closeres *res = data; 61941da177e4SLinus Torvalds struct compound_hdr hdr; 61951da177e4SLinus Torvalds int status; 61961da177e4SLinus Torvalds 6197bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61981da177e4SLinus Torvalds if (status) 61991da177e4SLinus Torvalds goto out; 6200bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62019b7b9fccSAndy Adamson if (status) 62029b7b9fccSAndy Adamson goto out; 6203bf269551SChuck Lever status = decode_putfh(xdr); 62041da177e4SLinus Torvalds if (status) 62051da177e4SLinus Torvalds goto out; 6206b6808145STrond Myklebust if (res->lr_res) { 6207b6808145STrond Myklebust status = decode_layoutreturn(xdr, res->lr_res); 6208b6808145STrond Myklebust res->lr_ret = status; 6209b6808145STrond Myklebust if (status) 6210b6808145STrond Myklebust goto out; 6211b6808145STrond Myklebust } 6212bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 62131da177e4SLinus Torvalds out: 62141da177e4SLinus Torvalds return status; 62151da177e4SLinus Torvalds } 62161da177e4SLinus Torvalds 62171da177e4SLinus Torvalds /* 62181da177e4SLinus Torvalds * Decode ACCESS response 62191da177e4SLinus Torvalds */ 6220bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6221fc016483SChristoph Hellwig void *data) 62221da177e4SLinus Torvalds { 6223fc016483SChristoph Hellwig struct nfs4_accessres *res = data; 62241da177e4SLinus Torvalds struct compound_hdr hdr; 62251da177e4SLinus Torvalds int status; 62261da177e4SLinus Torvalds 6227bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62289b7b9fccSAndy Adamson if (status) 62299b7b9fccSAndy Adamson goto out; 6230bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62319b7b9fccSAndy Adamson if (status) 62321da177e4SLinus Torvalds goto out; 6233bf269551SChuck Lever status = decode_putfh(xdr); 623476b32999STrond Myklebust if (status != 0) 623576b32999STrond Myklebust goto out; 62366168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 623776b32999STrond Myklebust if (status != 0) 623876b32999STrond Myklebust goto out; 62396926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62401da177e4SLinus Torvalds out: 62411da177e4SLinus Torvalds return status; 62421da177e4SLinus Torvalds } 62431da177e4SLinus Torvalds 62441da177e4SLinus Torvalds /* 62451da177e4SLinus Torvalds * Decode LOOKUP response 62461da177e4SLinus Torvalds */ 6247bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6248fc016483SChristoph Hellwig void *data) 62491da177e4SLinus Torvalds { 6250fc016483SChristoph Hellwig struct nfs4_lookup_res *res = data; 62511da177e4SLinus Torvalds struct compound_hdr hdr; 62521da177e4SLinus Torvalds int status; 62531da177e4SLinus Torvalds 6254bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62559b7b9fccSAndy Adamson if (status) 62569b7b9fccSAndy Adamson goto out; 6257bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62589b7b9fccSAndy Adamson if (status) 62591da177e4SLinus Torvalds goto out; 6260bf269551SChuck Lever status = decode_putfh(xdr); 6261bf269551SChuck Lever if (status) 62621da177e4SLinus Torvalds goto out; 6263bf269551SChuck Lever status = decode_lookup(xdr); 6264bf269551SChuck Lever if (status) 62651da177e4SLinus Torvalds goto out; 6266bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6267bf269551SChuck Lever if (status) 62681da177e4SLinus Torvalds goto out; 6269aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62701da177e4SLinus Torvalds out: 62711da177e4SLinus Torvalds return status; 62721da177e4SLinus Torvalds } 62731da177e4SLinus Torvalds 62741da177e4SLinus Torvalds /* 62755b5faaf6SJeff Layton * Decode LOOKUPP response 62765b5faaf6SJeff Layton */ 62775b5faaf6SJeff Layton static int nfs4_xdr_dec_lookupp(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 62785b5faaf6SJeff Layton void *data) 62795b5faaf6SJeff Layton { 62805b5faaf6SJeff Layton struct nfs4_lookupp_res *res = data; 62815b5faaf6SJeff Layton struct compound_hdr hdr; 62825b5faaf6SJeff Layton int status; 62835b5faaf6SJeff Layton 62845b5faaf6SJeff Layton status = decode_compound_hdr(xdr, &hdr); 62855b5faaf6SJeff Layton if (status) 62865b5faaf6SJeff Layton goto out; 62875b5faaf6SJeff Layton status = decode_sequence(xdr, &res->seq_res, rqstp); 62885b5faaf6SJeff Layton if (status) 62895b5faaf6SJeff Layton goto out; 62905b5faaf6SJeff Layton status = decode_putfh(xdr); 62915b5faaf6SJeff Layton if (status) 62925b5faaf6SJeff Layton goto out; 62935b5faaf6SJeff Layton status = decode_lookupp(xdr); 62945b5faaf6SJeff Layton if (status) 62955b5faaf6SJeff Layton goto out; 62965b5faaf6SJeff Layton status = decode_getfh(xdr, res->fh); 62975b5faaf6SJeff Layton if (status) 62985b5faaf6SJeff Layton goto out; 62995b5faaf6SJeff Layton status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 63005b5faaf6SJeff Layton out: 63015b5faaf6SJeff Layton return status; 63025b5faaf6SJeff Layton } 63035b5faaf6SJeff Layton 63045b5faaf6SJeff Layton /* 63051da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 63061da177e4SLinus Torvalds */ 6307bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 6308bf269551SChuck Lever struct xdr_stream *xdr, 6309fc016483SChristoph Hellwig void *data) 63101da177e4SLinus Torvalds { 6311fc016483SChristoph Hellwig struct nfs4_lookup_res *res = data; 63121da177e4SLinus Torvalds struct compound_hdr hdr; 63131da177e4SLinus Torvalds int status; 63141da177e4SLinus Torvalds 6315bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63169b7b9fccSAndy Adamson if (status) 63179b7b9fccSAndy Adamson goto out; 6318bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63199b7b9fccSAndy Adamson if (status) 63201da177e4SLinus Torvalds goto out; 6321bf269551SChuck Lever status = decode_putrootfh(xdr); 6322bf269551SChuck Lever if (status) 63231da177e4SLinus Torvalds goto out; 6324bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6325bf269551SChuck Lever if (status == 0) 6326aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, 6327aa9c2669SDavid Quigley res->label, res->server); 63281da177e4SLinus Torvalds out: 63291da177e4SLinus Torvalds return status; 63301da177e4SLinus Torvalds } 63311da177e4SLinus Torvalds 63321da177e4SLinus Torvalds /* 63331da177e4SLinus Torvalds * Decode REMOVE response 63341da177e4SLinus Torvalds */ 6335bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6336fc016483SChristoph Hellwig void *data) 63371da177e4SLinus Torvalds { 6338fc016483SChristoph Hellwig struct nfs_removeres *res = data; 63391da177e4SLinus Torvalds struct compound_hdr hdr; 63401da177e4SLinus Torvalds int status; 63411da177e4SLinus Torvalds 6342bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63439b7b9fccSAndy Adamson if (status) 63449b7b9fccSAndy Adamson goto out; 6345bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63469b7b9fccSAndy Adamson if (status) 63471da177e4SLinus Torvalds goto out; 6348bf269551SChuck Lever status = decode_putfh(xdr); 6349bf269551SChuck Lever if (status) 635016e42959STrond Myklebust goto out; 6351bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 63521da177e4SLinus Torvalds out: 63531da177e4SLinus Torvalds return status; 63541da177e4SLinus Torvalds } 63551da177e4SLinus Torvalds 63561da177e4SLinus Torvalds /* 63571da177e4SLinus Torvalds * Decode RENAME response 63581da177e4SLinus Torvalds */ 6359bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6360fc016483SChristoph Hellwig void *data) 63611da177e4SLinus Torvalds { 6362fc016483SChristoph Hellwig struct nfs_renameres *res = data; 63631da177e4SLinus Torvalds struct compound_hdr hdr; 63641da177e4SLinus Torvalds int status; 63651da177e4SLinus Torvalds 6366bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63679b7b9fccSAndy Adamson if (status) 63689b7b9fccSAndy Adamson goto out; 6369bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63709b7b9fccSAndy Adamson if (status) 63711da177e4SLinus Torvalds goto out; 6372bf269551SChuck Lever status = decode_putfh(xdr); 6373bf269551SChuck Lever if (status) 63741da177e4SLinus Torvalds goto out; 6375bf269551SChuck Lever status = decode_savefh(xdr); 6376bf269551SChuck Lever if (status) 63771da177e4SLinus Torvalds goto out; 6378bf269551SChuck Lever status = decode_putfh(xdr); 6379bf269551SChuck Lever if (status) 63801da177e4SLinus Torvalds goto out; 6381bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 63821da177e4SLinus Torvalds out: 63831da177e4SLinus Torvalds return status; 63841da177e4SLinus Torvalds } 63851da177e4SLinus Torvalds 63861da177e4SLinus Torvalds /* 63871da177e4SLinus Torvalds * Decode LINK response 63881da177e4SLinus Torvalds */ 6389bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6390fc016483SChristoph Hellwig void *data) 63911da177e4SLinus Torvalds { 6392fc016483SChristoph Hellwig struct nfs4_link_res *res = data; 63931da177e4SLinus Torvalds struct compound_hdr hdr; 63941da177e4SLinus Torvalds int status; 63951da177e4SLinus Torvalds 6396bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63979b7b9fccSAndy Adamson if (status) 63989b7b9fccSAndy Adamson goto out; 6399bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64009b7b9fccSAndy Adamson if (status) 64011da177e4SLinus Torvalds goto out; 6402bf269551SChuck Lever status = decode_putfh(xdr); 6403bf269551SChuck Lever if (status) 64041da177e4SLinus Torvalds goto out; 6405bf269551SChuck Lever status = decode_savefh(xdr); 6406bf269551SChuck Lever if (status) 64071da177e4SLinus Torvalds goto out; 6408bf269551SChuck Lever status = decode_putfh(xdr); 6409bf269551SChuck Lever if (status) 64101da177e4SLinus Torvalds goto out; 6411bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6412bf269551SChuck Lever if (status) 641391ba2eeeSTrond Myklebust goto out; 641491ba2eeeSTrond Myklebust /* 641591ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 641691ba2eeeSTrond Myklebust * filehandle. 641791ba2eeeSTrond Myklebust */ 6418bf269551SChuck Lever status = decode_restorefh(xdr); 6419bf269551SChuck Lever if (status) 642091ba2eeeSTrond Myklebust goto out; 6421aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 64221da177e4SLinus Torvalds out: 64231da177e4SLinus Torvalds return status; 64241da177e4SLinus Torvalds } 64251da177e4SLinus Torvalds 64261da177e4SLinus Torvalds /* 64271da177e4SLinus Torvalds * Decode CREATE response 64281da177e4SLinus Torvalds */ 6429bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6430fc016483SChristoph Hellwig void *data) 64311da177e4SLinus Torvalds { 6432fc016483SChristoph Hellwig struct nfs4_create_res *res = data; 64331da177e4SLinus Torvalds struct compound_hdr hdr; 64341da177e4SLinus Torvalds int status; 64351da177e4SLinus Torvalds 6436bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64379b7b9fccSAndy Adamson if (status) 64389b7b9fccSAndy Adamson goto out; 6439bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64409b7b9fccSAndy Adamson if (status) 64411da177e4SLinus Torvalds goto out; 6442bf269551SChuck Lever status = decode_putfh(xdr); 6443bf269551SChuck Lever if (status) 64441da177e4SLinus Torvalds goto out; 6445bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6446bf269551SChuck Lever if (status) 64471da177e4SLinus Torvalds goto out; 6448bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6449bf269551SChuck Lever if (status) 64501da177e4SLinus Torvalds goto out; 6451aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 64521da177e4SLinus Torvalds out: 64531da177e4SLinus Torvalds return status; 64541da177e4SLinus Torvalds } 64551da177e4SLinus Torvalds 64561da177e4SLinus Torvalds /* 64571da177e4SLinus Torvalds * Decode SYMLINK response 64581da177e4SLinus Torvalds */ 6459bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6460fc016483SChristoph Hellwig void *res) 64611da177e4SLinus Torvalds { 6462bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 64631da177e4SLinus Torvalds } 64641da177e4SLinus Torvalds 64651da177e4SLinus Torvalds /* 64661da177e4SLinus Torvalds * Decode GETATTR response 64671da177e4SLinus Torvalds */ 6468bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6469fc016483SChristoph Hellwig void *data) 64701da177e4SLinus Torvalds { 6471fc016483SChristoph Hellwig struct nfs4_getattr_res *res = data; 64721da177e4SLinus Torvalds struct compound_hdr hdr; 64731da177e4SLinus Torvalds int status; 64741da177e4SLinus Torvalds 6475bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64761da177e4SLinus Torvalds if (status) 64771da177e4SLinus Torvalds goto out; 6478bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64799b7b9fccSAndy Adamson if (status) 64809b7b9fccSAndy Adamson goto out; 6481bf269551SChuck Lever status = decode_putfh(xdr); 64821da177e4SLinus Torvalds if (status) 64831da177e4SLinus Torvalds goto out; 6484aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 64851da177e4SLinus Torvalds out: 64861da177e4SLinus Torvalds return status; 64871da177e4SLinus Torvalds } 64881da177e4SLinus Torvalds 648923ec6965SJ. Bruce Fields /* 649023ec6965SJ. Bruce Fields * Encode an SETACL request 649123ec6965SJ. Bruce Fields */ 64929f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 6493fcc85819SChristoph Hellwig const void *data) 649423ec6965SJ. Bruce Fields { 6495fcc85819SChristoph Hellwig const struct nfs_setaclargs *args = data; 649623ec6965SJ. Bruce Fields struct compound_hdr hdr = { 649766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 649823ec6965SJ. Bruce Fields }; 649923ec6965SJ. Bruce Fields 65009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 65019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 65029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 65039f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6504d017931cSAndy Adamson encode_nops(&hdr); 650523ec6965SJ. Bruce Fields } 650605d564feSAndy Adamson 650723ec6965SJ. Bruce Fields /* 650823ec6965SJ. Bruce Fields * Decode SETACL response 650923ec6965SJ. Bruce Fields */ 651023ec6965SJ. Bruce Fields static int 6511bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6512fc016483SChristoph Hellwig void *data) 651323ec6965SJ. Bruce Fields { 6514fc016483SChristoph Hellwig struct nfs_setaclres *res = data; 651523ec6965SJ. Bruce Fields struct compound_hdr hdr; 651623ec6965SJ. Bruce Fields int status; 651723ec6965SJ. Bruce Fields 6518bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 651923ec6965SJ. Bruce Fields if (status) 652023ec6965SJ. Bruce Fields goto out; 6521bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65229b7b9fccSAndy Adamson if (status) 65239b7b9fccSAndy Adamson goto out; 6524bf269551SChuck Lever status = decode_putfh(xdr); 652523ec6965SJ. Bruce Fields if (status) 652623ec6965SJ. Bruce Fields goto out; 6527bf269551SChuck Lever status = decode_setattr(xdr); 652823ec6965SJ. Bruce Fields out: 652923ec6965SJ. Bruce Fields return status; 653023ec6965SJ. Bruce Fields } 65311da177e4SLinus Torvalds 65321da177e4SLinus Torvalds /* 6533029d105eSJ. Bruce Fields * Decode GETACL response 6534029d105eSJ. Bruce Fields */ 6535029d105eSJ. Bruce Fields static int 6536bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6537fc016483SChristoph Hellwig void *data) 6538029d105eSJ. Bruce Fields { 6539fc016483SChristoph Hellwig struct nfs_getaclres *res = data; 6540029d105eSJ. Bruce Fields struct compound_hdr hdr; 6541029d105eSJ. Bruce Fields int status; 6542029d105eSJ. Bruce Fields 6543331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6544331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6545331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6546331818f1STrond Myklebust } 6547bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6548029d105eSJ. Bruce Fields if (status) 6549029d105eSJ. Bruce Fields goto out; 6550bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65519b7b9fccSAndy Adamson if (status) 65529b7b9fccSAndy Adamson goto out; 6553bf269551SChuck Lever status = decode_putfh(xdr); 6554029d105eSJ. Bruce Fields if (status) 6555029d105eSJ. Bruce Fields goto out; 6556bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6557029d105eSJ. Bruce Fields 6558029d105eSJ. Bruce Fields out: 6559029d105eSJ. Bruce Fields return status; 6560029d105eSJ. Bruce Fields } 6561029d105eSJ. Bruce Fields 6562029d105eSJ. Bruce Fields /* 65631da177e4SLinus Torvalds * Decode CLOSE response 65641da177e4SLinus Torvalds */ 6565bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6566fc016483SChristoph Hellwig void *data) 65671da177e4SLinus Torvalds { 6568fc016483SChristoph Hellwig struct nfs_closeres *res = data; 65691da177e4SLinus Torvalds struct compound_hdr hdr; 65701da177e4SLinus Torvalds int status; 65711da177e4SLinus Torvalds 6572bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65731da177e4SLinus Torvalds if (status) 65741da177e4SLinus Torvalds goto out; 6575bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65769b7b9fccSAndy Adamson if (status) 65779b7b9fccSAndy Adamson goto out; 6578bf269551SChuck Lever status = decode_putfh(xdr); 65791da177e4SLinus Torvalds if (status) 65801da177e4SLinus Torvalds goto out; 6581cf805165STrond Myklebust if (res->lr_res) { 6582cf805165STrond Myklebust status = decode_layoutreturn(xdr, res->lr_res); 6583cf805165STrond Myklebust res->lr_ret = status; 6584cf805165STrond Myklebust if (status) 6585cf805165STrond Myklebust goto out; 6586cf805165STrond Myklebust } 6587d8d84983STrond Myklebust if (res->fattr != NULL) { 6588d8d84983STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6589516a6af6STrond Myklebust if (status != 0) 6590516a6af6STrond Myklebust goto out; 6591d8d84983STrond Myklebust } 6592d8d84983STrond Myklebust status = decode_close(xdr, res); 65931da177e4SLinus Torvalds out: 65941da177e4SLinus Torvalds return status; 65951da177e4SLinus Torvalds } 65961da177e4SLinus Torvalds 65971da177e4SLinus Torvalds /* 65981da177e4SLinus Torvalds * Decode OPEN response 65991da177e4SLinus Torvalds */ 6600bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6601fc016483SChristoph Hellwig void *data) 66021da177e4SLinus Torvalds { 6603fc016483SChristoph Hellwig struct nfs_openres *res = data; 66041da177e4SLinus Torvalds struct compound_hdr hdr; 66051da177e4SLinus Torvalds int status; 66061da177e4SLinus Torvalds 6607bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66081da177e4SLinus Torvalds if (status) 66091da177e4SLinus Torvalds goto out; 6610bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66119b7b9fccSAndy Adamson if (status) 66129b7b9fccSAndy Adamson goto out; 6613bf269551SChuck Lever status = decode_putfh(xdr); 66141da177e4SLinus Torvalds if (status) 66151da177e4SLinus Torvalds goto out; 6616bf269551SChuck Lever status = decode_open(xdr, res); 66171da177e4SLinus Torvalds if (status) 66181da177e4SLinus Torvalds goto out; 661901913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 662001913b49SWeston Andros Adamson if (status) 66211da177e4SLinus Torvalds goto out; 6622ae2bb032SWeston Andros Adamson if (res->access_request) 66236168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 6624aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->f_attr, res->f_label, res->server); 66251da177e4SLinus Torvalds out: 66261da177e4SLinus Torvalds return status; 66271da177e4SLinus Torvalds } 66281da177e4SLinus Torvalds 66291da177e4SLinus Torvalds /* 66301da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 66311da177e4SLinus Torvalds */ 6632bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6633bf269551SChuck Lever struct xdr_stream *xdr, 6634fc016483SChristoph Hellwig void *data) 66351da177e4SLinus Torvalds { 6636fc016483SChristoph Hellwig struct nfs_open_confirmres *res = data; 66371da177e4SLinus Torvalds struct compound_hdr hdr; 66381da177e4SLinus Torvalds int status; 66391da177e4SLinus Torvalds 6640bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66411da177e4SLinus Torvalds if (status) 66421da177e4SLinus Torvalds goto out; 6643bf269551SChuck Lever status = decode_putfh(xdr); 66441da177e4SLinus Torvalds if (status) 66451da177e4SLinus Torvalds goto out; 6646bf269551SChuck Lever status = decode_open_confirm(xdr, res); 66471da177e4SLinus Torvalds out: 66481da177e4SLinus Torvalds return status; 66491da177e4SLinus Torvalds } 66501da177e4SLinus Torvalds 66511da177e4SLinus Torvalds /* 66521da177e4SLinus Torvalds * Decode OPEN response 66531da177e4SLinus Torvalds */ 6654bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6655bf269551SChuck Lever struct xdr_stream *xdr, 6656fc016483SChristoph Hellwig void *data) 66571da177e4SLinus Torvalds { 6658fc016483SChristoph Hellwig struct nfs_openres *res = data; 66591da177e4SLinus Torvalds struct compound_hdr hdr; 66601da177e4SLinus Torvalds int status; 66611da177e4SLinus Torvalds 6662bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66631da177e4SLinus Torvalds if (status) 66641da177e4SLinus Torvalds goto out; 6665bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66669b7b9fccSAndy Adamson if (status) 66679b7b9fccSAndy Adamson goto out; 6668bf269551SChuck Lever status = decode_putfh(xdr); 66691da177e4SLinus Torvalds if (status) 66701da177e4SLinus Torvalds goto out; 6671bf269551SChuck Lever status = decode_open(xdr, res); 6672864472e9STrond Myklebust if (status) 6673864472e9STrond Myklebust goto out; 6674ae2bb032SWeston Andros Adamson if (res->access_request) 66756168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 66766926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 66771da177e4SLinus Torvalds out: 66781da177e4SLinus Torvalds return status; 66791da177e4SLinus Torvalds } 66801da177e4SLinus Torvalds 66811da177e4SLinus Torvalds /* 66821da177e4SLinus Torvalds * Decode SETATTR response 66831da177e4SLinus Torvalds */ 6684bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6685bf269551SChuck Lever struct xdr_stream *xdr, 6686fc016483SChristoph Hellwig void *data) 66871da177e4SLinus Torvalds { 6688fc016483SChristoph Hellwig struct nfs_setattrres *res = data; 66891da177e4SLinus Torvalds struct compound_hdr hdr; 66901da177e4SLinus Torvalds int status; 66911da177e4SLinus Torvalds 6692bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66931da177e4SLinus Torvalds if (status) 66941da177e4SLinus Torvalds goto out; 6695bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66969b7b9fccSAndy Adamson if (status) 66979b7b9fccSAndy Adamson goto out; 6698bf269551SChuck Lever status = decode_putfh(xdr); 66991da177e4SLinus Torvalds if (status) 67001da177e4SLinus Torvalds goto out; 6701bf269551SChuck Lever status = decode_setattr(xdr); 67021da177e4SLinus Torvalds if (status) 67031da177e4SLinus Torvalds goto out; 6704aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 67051da177e4SLinus Torvalds out: 67061da177e4SLinus Torvalds return status; 67071da177e4SLinus Torvalds } 67081da177e4SLinus Torvalds 67091da177e4SLinus Torvalds /* 67101da177e4SLinus Torvalds * Decode LOCK response 67111da177e4SLinus Torvalds */ 6712bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6713fc016483SChristoph Hellwig void *data) 67141da177e4SLinus Torvalds { 6715fc016483SChristoph Hellwig struct nfs_lock_res *res = data; 67161da177e4SLinus Torvalds struct compound_hdr hdr; 67171da177e4SLinus Torvalds int status; 67181da177e4SLinus Torvalds 6719bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67201da177e4SLinus Torvalds if (status) 67211da177e4SLinus Torvalds goto out; 6722bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67239b7b9fccSAndy Adamson if (status) 67249b7b9fccSAndy Adamson goto out; 6725bf269551SChuck Lever status = decode_putfh(xdr); 67261da177e4SLinus Torvalds if (status) 67271da177e4SLinus Torvalds goto out; 6728bf269551SChuck Lever status = decode_lock(xdr, res); 67291da177e4SLinus Torvalds out: 67301da177e4SLinus Torvalds return status; 67311da177e4SLinus Torvalds } 67321da177e4SLinus Torvalds 67331da177e4SLinus Torvalds /* 67341da177e4SLinus Torvalds * Decode LOCKT response 67351da177e4SLinus Torvalds */ 6736bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6737fc016483SChristoph Hellwig void *data) 67381da177e4SLinus Torvalds { 6739fc016483SChristoph Hellwig struct nfs_lockt_res *res = data; 67401da177e4SLinus Torvalds struct compound_hdr hdr; 67411da177e4SLinus Torvalds int status; 67421da177e4SLinus Torvalds 6743bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67441da177e4SLinus Torvalds if (status) 67451da177e4SLinus Torvalds goto out; 6746bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67479b7b9fccSAndy Adamson if (status) 67489b7b9fccSAndy Adamson goto out; 6749bf269551SChuck Lever status = decode_putfh(xdr); 67501da177e4SLinus Torvalds if (status) 67511da177e4SLinus Torvalds goto out; 6752bf269551SChuck Lever status = decode_lockt(xdr, res); 67531da177e4SLinus Torvalds out: 67541da177e4SLinus Torvalds return status; 67551da177e4SLinus Torvalds } 67561da177e4SLinus Torvalds 67571da177e4SLinus Torvalds /* 67581da177e4SLinus Torvalds * Decode LOCKU response 67591da177e4SLinus Torvalds */ 6760bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6761fc016483SChristoph Hellwig void *data) 67621da177e4SLinus Torvalds { 6763fc016483SChristoph Hellwig struct nfs_locku_res *res = data; 67641da177e4SLinus Torvalds struct compound_hdr hdr; 67651da177e4SLinus Torvalds int status; 67661da177e4SLinus Torvalds 6767bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67681da177e4SLinus Torvalds if (status) 67691da177e4SLinus Torvalds goto out; 6770bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67719b7b9fccSAndy Adamson if (status) 67729b7b9fccSAndy Adamson goto out; 6773bf269551SChuck Lever status = decode_putfh(xdr); 67741da177e4SLinus Torvalds if (status) 67751da177e4SLinus Torvalds goto out; 6776bf269551SChuck Lever status = decode_locku(xdr, res); 67771da177e4SLinus Torvalds out: 67781da177e4SLinus Torvalds return status; 67791da177e4SLinus Torvalds } 67801da177e4SLinus Torvalds 6781bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6782bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6783d3c7b7ccSTrond Myklebust { 6784d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6785d3c7b7ccSTrond Myklebust int status; 6786d3c7b7ccSTrond Myklebust 6787bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6788d3c7b7ccSTrond Myklebust if (!status) 6789bf269551SChuck Lever status = decode_release_lockowner(xdr); 6790d3c7b7ccSTrond Myklebust return status; 6791d3c7b7ccSTrond Myklebust } 6792d3c7b7ccSTrond Myklebust 67931da177e4SLinus Torvalds /* 67941da177e4SLinus Torvalds * Decode READLINK response 67951da177e4SLinus Torvalds */ 6796bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6797bf269551SChuck Lever struct xdr_stream *xdr, 6798fc016483SChristoph Hellwig void *data) 67991da177e4SLinus Torvalds { 6800fc016483SChristoph Hellwig struct nfs4_readlink_res *res = data; 68011da177e4SLinus Torvalds struct compound_hdr hdr; 68021da177e4SLinus Torvalds int status; 68031da177e4SLinus Torvalds 6804bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68051da177e4SLinus Torvalds if (status) 68061da177e4SLinus Torvalds goto out; 6807bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 68089b7b9fccSAndy Adamson if (status) 68099b7b9fccSAndy Adamson goto out; 6810bf269551SChuck Lever status = decode_putfh(xdr); 68111da177e4SLinus Torvalds if (status) 68121da177e4SLinus Torvalds goto out; 6813bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 68141da177e4SLinus Torvalds out: 68151da177e4SLinus Torvalds return status; 68161da177e4SLinus Torvalds } 68171da177e4SLinus Torvalds 68181da177e4SLinus Torvalds /* 68191da177e4SLinus Torvalds * Decode READDIR response 68201da177e4SLinus Torvalds */ 6821bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6822fc016483SChristoph Hellwig void *data) 68231da177e4SLinus Torvalds { 6824fc016483SChristoph Hellwig struct nfs4_readdir_res *res = data; 68251da177e4SLinus Torvalds struct compound_hdr hdr; 68261da177e4SLinus Torvalds int status; 68271da177e4SLinus Torvalds 6828bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68291da177e4SLinus Torvalds if (status) 68301da177e4SLinus Torvalds goto out; 6831bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 68329b7b9fccSAndy Adamson if (status) 68339b7b9fccSAndy Adamson goto out; 6834bf269551SChuck Lever status = decode_putfh(xdr); 68351da177e4SLinus Torvalds if (status) 68361da177e4SLinus Torvalds goto out; 6837bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 68381da177e4SLinus Torvalds out: 68391da177e4SLinus Torvalds return status; 68401da177e4SLinus Torvalds } 68411da177e4SLinus Torvalds 68421da177e4SLinus Torvalds /* 68431da177e4SLinus Torvalds * Decode Read response 68441da177e4SLinus Torvalds */ 6845bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6846fc016483SChristoph Hellwig void *data) 68471da177e4SLinus Torvalds { 6848fc016483SChristoph Hellwig struct nfs_pgio_res *res = data; 68491da177e4SLinus Torvalds struct compound_hdr hdr; 68501da177e4SLinus Torvalds int status; 68511da177e4SLinus Torvalds 6852bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6853aabff4ddSPeng Tao res->op_status = hdr.status; 68541da177e4SLinus Torvalds if (status) 68551da177e4SLinus Torvalds goto out; 6856bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 68579b7b9fccSAndy Adamson if (status) 68589b7b9fccSAndy Adamson goto out; 6859bf269551SChuck Lever status = decode_putfh(xdr); 68601da177e4SLinus Torvalds if (status) 68611da177e4SLinus Torvalds goto out; 6862bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 68631da177e4SLinus Torvalds if (!status) 68641da177e4SLinus Torvalds status = res->count; 68651da177e4SLinus Torvalds out: 68661da177e4SLinus Torvalds return status; 68671da177e4SLinus Torvalds } 68681da177e4SLinus Torvalds 68691da177e4SLinus Torvalds /* 68701da177e4SLinus Torvalds * Decode WRITE response 68711da177e4SLinus Torvalds */ 6872bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6873fc016483SChristoph Hellwig void *data) 68741da177e4SLinus Torvalds { 6875fc016483SChristoph Hellwig struct nfs_pgio_res *res = data; 68761da177e4SLinus Torvalds struct compound_hdr hdr; 68771da177e4SLinus Torvalds int status; 68781da177e4SLinus Torvalds 6879bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6880aabff4ddSPeng Tao res->op_status = hdr.status; 68811da177e4SLinus Torvalds if (status) 68821da177e4SLinus Torvalds goto out; 6883bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 68849b7b9fccSAndy Adamson if (status) 68859b7b9fccSAndy Adamson goto out; 6886bf269551SChuck Lever status = decode_putfh(xdr); 68871da177e4SLinus Torvalds if (status) 68881da177e4SLinus Torvalds goto out; 6889bf269551SChuck Lever status = decode_write(xdr, res); 68904f9838c7STrond Myklebust if (status) 68914f9838c7STrond Myklebust goto out; 68927ffd1064SFred Isaman if (res->fattr) 68936926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 68941da177e4SLinus Torvalds if (!status) 68951da177e4SLinus Torvalds status = res->count; 68961da177e4SLinus Torvalds out: 68971da177e4SLinus Torvalds return status; 68981da177e4SLinus Torvalds } 68991da177e4SLinus Torvalds 69001da177e4SLinus Torvalds /* 69011da177e4SLinus Torvalds * Decode COMMIT response 69021da177e4SLinus Torvalds */ 6903bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6904fc016483SChristoph Hellwig void *data) 69051da177e4SLinus Torvalds { 6906fc016483SChristoph Hellwig struct nfs_commitres *res = data; 69071da177e4SLinus Torvalds struct compound_hdr hdr; 69081da177e4SLinus Torvalds int status; 69091da177e4SLinus Torvalds 6910bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6911aabff4ddSPeng Tao res->op_status = hdr.status; 69121da177e4SLinus Torvalds if (status) 69131da177e4SLinus Torvalds goto out; 6914bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 69159b7b9fccSAndy Adamson if (status) 69169b7b9fccSAndy Adamson goto out; 6917bf269551SChuck Lever status = decode_putfh(xdr); 69181da177e4SLinus Torvalds if (status) 69191da177e4SLinus Torvalds goto out; 6920bf269551SChuck Lever status = decode_commit(xdr, res); 69211da177e4SLinus Torvalds out: 69221da177e4SLinus Torvalds return status; 69231da177e4SLinus Torvalds } 69241da177e4SLinus Torvalds 69251da177e4SLinus Torvalds /* 69268b173218SRicardo Labiaga * Decode FSINFO response 69271da177e4SLinus Torvalds */ 6928bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 6929fc016483SChristoph Hellwig void *data) 69301da177e4SLinus Torvalds { 6931fc016483SChristoph Hellwig struct nfs4_fsinfo_res *res = data; 69321da177e4SLinus Torvalds struct compound_hdr hdr; 69331da177e4SLinus Torvalds int status; 69341da177e4SLinus Torvalds 6935bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69361da177e4SLinus Torvalds if (!status) 6937bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 69389b7b9fccSAndy Adamson if (!status) 6939bf269551SChuck Lever status = decode_putfh(xdr); 69401da177e4SLinus Torvalds if (!status) 6941bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 69421da177e4SLinus Torvalds return status; 69431da177e4SLinus Torvalds } 69441da177e4SLinus Torvalds 69451da177e4SLinus Torvalds /* 69468b173218SRicardo Labiaga * Decode PATHCONF response 69471da177e4SLinus Torvalds */ 6948bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6949fc016483SChristoph Hellwig void *data) 69501da177e4SLinus Torvalds { 6951fc016483SChristoph Hellwig struct nfs4_pathconf_res *res = data; 69521da177e4SLinus Torvalds struct compound_hdr hdr; 69531da177e4SLinus Torvalds int status; 69541da177e4SLinus Torvalds 6955bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69561da177e4SLinus Torvalds if (!status) 6957bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 69589b7b9fccSAndy Adamson if (!status) 6959bf269551SChuck Lever status = decode_putfh(xdr); 69601da177e4SLinus Torvalds if (!status) 6961bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 69621da177e4SLinus Torvalds return status; 69631da177e4SLinus Torvalds } 69641da177e4SLinus Torvalds 69651da177e4SLinus Torvalds /* 69668b173218SRicardo Labiaga * Decode STATFS response 69671da177e4SLinus Torvalds */ 6968bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 6969fc016483SChristoph Hellwig void *data) 69701da177e4SLinus Torvalds { 6971fc016483SChristoph Hellwig struct nfs4_statfs_res *res = data; 69721da177e4SLinus Torvalds struct compound_hdr hdr; 69731da177e4SLinus Torvalds int status; 69741da177e4SLinus Torvalds 6975bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69761da177e4SLinus Torvalds if (!status) 6977bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 69789b7b9fccSAndy Adamson if (!status) 6979bf269551SChuck Lever status = decode_putfh(xdr); 69801da177e4SLinus Torvalds if (!status) 6981bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 69821da177e4SLinus Torvalds return status; 69831da177e4SLinus Torvalds } 69841da177e4SLinus Torvalds 69851da177e4SLinus Torvalds /* 69868b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 69871da177e4SLinus Torvalds */ 6988bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6989bf269551SChuck Lever struct xdr_stream *xdr, 6990fc016483SChristoph Hellwig void *data) 69911da177e4SLinus Torvalds { 6992fc016483SChristoph Hellwig struct nfs4_server_caps_res *res = data; 69931da177e4SLinus Torvalds struct compound_hdr hdr; 69941da177e4SLinus Torvalds int status; 69951da177e4SLinus Torvalds 6996bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69979b7b9fccSAndy Adamson if (status) 69989b7b9fccSAndy Adamson goto out; 6999bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 70009b7b9fccSAndy Adamson if (status) 70011da177e4SLinus Torvalds goto out; 7002bf269551SChuck Lever status = decode_putfh(xdr); 7003bf269551SChuck Lever if (status) 70041da177e4SLinus Torvalds goto out; 7005bf269551SChuck Lever status = decode_server_caps(xdr, res); 70061da177e4SLinus Torvalds out: 70071da177e4SLinus Torvalds return status; 70081da177e4SLinus Torvalds } 70091da177e4SLinus Torvalds 70101da177e4SLinus Torvalds /* 70111da177e4SLinus Torvalds * Decode RENEW response 70121da177e4SLinus Torvalds */ 7013bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 7014bf269551SChuck Lever void *__unused) 70151da177e4SLinus Torvalds { 70161da177e4SLinus Torvalds struct compound_hdr hdr; 70171da177e4SLinus Torvalds int status; 70181da177e4SLinus Torvalds 7019bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70201da177e4SLinus Torvalds if (!status) 7021bf269551SChuck Lever status = decode_renew(xdr); 70221da177e4SLinus Torvalds return status; 70231da177e4SLinus Torvalds } 70241da177e4SLinus Torvalds 70251da177e4SLinus Torvalds /* 70268b173218SRicardo Labiaga * Decode SETCLIENTID response 70271da177e4SLinus Torvalds */ 7028bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 7029bf269551SChuck Lever struct xdr_stream *xdr, 7030fc016483SChristoph Hellwig void *data) 70311da177e4SLinus Torvalds { 7032fc016483SChristoph Hellwig struct nfs4_setclientid_res *res = data; 70331da177e4SLinus Torvalds struct compound_hdr hdr; 70341da177e4SLinus Torvalds int status; 70351da177e4SLinus Torvalds 7036bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70371da177e4SLinus Torvalds if (!status) 7038bf269551SChuck Lever status = decode_setclientid(xdr, res); 70391da177e4SLinus Torvalds return status; 70401da177e4SLinus Torvalds } 70411da177e4SLinus Torvalds 70421da177e4SLinus Torvalds /* 70438b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 70441da177e4SLinus Torvalds */ 7045bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 7046fc016483SChristoph Hellwig struct xdr_stream *xdr, 7047fc016483SChristoph Hellwig void *data) 70481da177e4SLinus Torvalds { 70491da177e4SLinus Torvalds struct compound_hdr hdr; 70501da177e4SLinus Torvalds int status; 70511da177e4SLinus Torvalds 7052bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70531da177e4SLinus Torvalds if (!status) 7054bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 70551da177e4SLinus Torvalds return status; 70561da177e4SLinus Torvalds } 70571da177e4SLinus Torvalds 70581da177e4SLinus Torvalds /* 70598b173218SRicardo Labiaga * Decode DELEGRETURN response 70601da177e4SLinus Torvalds */ 7061bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 7062bf269551SChuck Lever struct xdr_stream *xdr, 7063fc016483SChristoph Hellwig void *data) 70641da177e4SLinus Torvalds { 7065fc016483SChristoph Hellwig struct nfs4_delegreturnres *res = data; 70661da177e4SLinus Torvalds struct compound_hdr hdr; 70671da177e4SLinus Torvalds int status; 70681da177e4SLinus Torvalds 7069bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70709b7b9fccSAndy Adamson if (status) 70719b7b9fccSAndy Adamson goto out; 7072bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 70739b7b9fccSAndy Adamson if (status) 7074fa178f29STrond Myklebust goto out; 7075bf269551SChuck Lever status = decode_putfh(xdr); 7076fa178f29STrond Myklebust if (status != 0) 7077fa178f29STrond Myklebust goto out; 7078586f1c39STrond Myklebust if (res->lr_res) { 7079586f1c39STrond Myklebust status = decode_layoutreturn(xdr, res->lr_res); 7080586f1c39STrond Myklebust res->lr_ret = status; 7081586f1c39STrond Myklebust if (status) 7082586f1c39STrond Myklebust goto out; 7083586f1c39STrond Myklebust } 70848ac2b422STrond Myklebust if (res->fattr) { 7085e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 7086556ae3bbSJeff Layton if (status != 0) 7087556ae3bbSJeff Layton goto out; 70888ac2b422STrond Myklebust } 7089e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 7090fa178f29STrond Myklebust out: 70911da177e4SLinus Torvalds return status; 70921da177e4SLinus Torvalds } 70931da177e4SLinus Torvalds 7094683b57b4STrond Myklebust /* 70958b173218SRicardo Labiaga * Decode FS_LOCATIONS response 7096683b57b4STrond Myklebust */ 7097bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 7098bf269551SChuck Lever struct xdr_stream *xdr, 7099fc016483SChristoph Hellwig void *data) 7100683b57b4STrond Myklebust { 7101fc016483SChristoph Hellwig struct nfs4_fs_locations_res *res = data; 7102683b57b4STrond Myklebust struct compound_hdr hdr; 7103683b57b4STrond Myklebust int status; 7104683b57b4STrond Myklebust 7105bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 71069b7b9fccSAndy Adamson if (status) 71079b7b9fccSAndy Adamson goto out; 7108bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 71099b7b9fccSAndy Adamson if (status) 7110683b57b4STrond Myklebust goto out; 7111bf269551SChuck Lever status = decode_putfh(xdr); 7112bf269551SChuck Lever if (status) 7113683b57b4STrond Myklebust goto out; 7114b03d735bSChuck Lever if (res->migration) { 7115b03d735bSChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 7116b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 7117b03d735bSChuck Lever &res->fs_locations->fattr, 7118b03d735bSChuck Lever NULL, res->fs_locations, 7119b03d735bSChuck Lever NULL, res->fs_locations->server); 7120b03d735bSChuck Lever if (status) 7121b03d735bSChuck Lever goto out; 7122b03d735bSChuck Lever if (res->renew) 7123b03d735bSChuck Lever status = decode_renew(xdr); 7124b03d735bSChuck Lever } else { 7125bf269551SChuck Lever status = decode_lookup(xdr); 7126bf269551SChuck Lever if (status) 7127683b57b4STrond Myklebust goto out; 7128bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 7129b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 7130b03d735bSChuck Lever &res->fs_locations->fattr, 71318b7e3f49STrond Myklebust NULL, res->fs_locations, 7132aa9c2669SDavid Quigley NULL, res->fs_locations->server); 7133b03d735bSChuck Lever } 7134683b57b4STrond Myklebust out: 7135683b57b4STrond Myklebust return status; 7136683b57b4STrond Myklebust } 7137683b57b4STrond Myklebust 71385a5ea0d4SBryan Schumaker /* 71395a5ea0d4SBryan Schumaker * Decode SECINFO response 71405a5ea0d4SBryan Schumaker */ 71415a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 71425a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 7143fc016483SChristoph Hellwig void *data) 71445a5ea0d4SBryan Schumaker { 7145fc016483SChristoph Hellwig struct nfs4_secinfo_res *res = data; 71465a5ea0d4SBryan Schumaker struct compound_hdr hdr; 71475a5ea0d4SBryan Schumaker int status; 71485a5ea0d4SBryan Schumaker 71495a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 71505a5ea0d4SBryan Schumaker if (status) 71515a5ea0d4SBryan Schumaker goto out; 71525a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 71535a5ea0d4SBryan Schumaker if (status) 71545a5ea0d4SBryan Schumaker goto out; 71555a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 71565a5ea0d4SBryan Schumaker if (status) 71575a5ea0d4SBryan Schumaker goto out; 71585a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 71595a5ea0d4SBryan Schumaker out: 71605a5ea0d4SBryan Schumaker return status; 71615a5ea0d4SBryan Schumaker } 71625a5ea0d4SBryan Schumaker 716344c99933SChuck Lever /* 716444c99933SChuck Lever * Decode FSID_PRESENT response 716544c99933SChuck Lever */ 716644c99933SChuck Lever static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp, 716744c99933SChuck Lever struct xdr_stream *xdr, 7168fc016483SChristoph Hellwig void *data) 716944c99933SChuck Lever { 7170fc016483SChristoph Hellwig struct nfs4_fsid_present_res *res = data; 717144c99933SChuck Lever struct compound_hdr hdr; 717244c99933SChuck Lever int status; 717344c99933SChuck Lever 717444c99933SChuck Lever status = decode_compound_hdr(xdr, &hdr); 717544c99933SChuck Lever if (status) 717644c99933SChuck Lever goto out; 717744c99933SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 717844c99933SChuck Lever if (status) 717944c99933SChuck Lever goto out; 718044c99933SChuck Lever status = decode_putfh(xdr); 718144c99933SChuck Lever if (status) 718244c99933SChuck Lever goto out; 718344c99933SChuck Lever status = decode_getfh(xdr, res->fh); 718444c99933SChuck Lever if (status) 718544c99933SChuck Lever goto out; 718644c99933SChuck Lever if (res->renew) 718744c99933SChuck Lever status = decode_renew(xdr); 718844c99933SChuck Lever out: 718944c99933SChuck Lever return status; 719044c99933SChuck Lever } 719144c99933SChuck Lever 719299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 719399fe60d0SBenny Halevy /* 71947c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 71957c44f1aeSWeston Andros Adamson */ 71967c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 71977c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 71987c44f1aeSWeston Andros Adamson void *res) 71997c44f1aeSWeston Andros Adamson { 72007c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 72017c44f1aeSWeston Andros Adamson int status; 72027c44f1aeSWeston Andros Adamson 72037c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 72047c44f1aeSWeston Andros Adamson if (!status) 72057c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 72067c44f1aeSWeston Andros Adamson return status; 72077c44f1aeSWeston Andros Adamson } 72087c44f1aeSWeston Andros Adamson 72097c44f1aeSWeston Andros Adamson /* 72108b173218SRicardo Labiaga * Decode EXCHANGE_ID response 721199fe60d0SBenny Halevy */ 7212bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 7213bf269551SChuck Lever struct xdr_stream *xdr, 721499fe60d0SBenny Halevy void *res) 721599fe60d0SBenny Halevy { 721699fe60d0SBenny Halevy struct compound_hdr hdr; 721799fe60d0SBenny Halevy int status; 721899fe60d0SBenny Halevy 7219bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 722099fe60d0SBenny Halevy if (!status) 7221bf269551SChuck Lever status = decode_exchange_id(xdr, res); 722299fe60d0SBenny Halevy return status; 722399fe60d0SBenny Halevy } 72242050f0ccSAndy Adamson 72252050f0ccSAndy Adamson /* 72268b173218SRicardo Labiaga * Decode CREATE_SESSION response 7227fc931582SAndy Adamson */ 7228bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 7229bf269551SChuck Lever struct xdr_stream *xdr, 7230fc016483SChristoph Hellwig void *res) 7231fc931582SAndy Adamson { 7232fc931582SAndy Adamson struct compound_hdr hdr; 7233fc931582SAndy Adamson int status; 7234fc931582SAndy Adamson 7235bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7236fc931582SAndy Adamson if (!status) 7237bf269551SChuck Lever status = decode_create_session(xdr, res); 7238fc931582SAndy Adamson return status; 7239fc931582SAndy Adamson } 7240fc931582SAndy Adamson 7241fc931582SAndy Adamson /* 72428b173218SRicardo Labiaga * Decode DESTROY_SESSION response 72430f3e66c6SAndy Adamson */ 7244bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 7245bf269551SChuck Lever struct xdr_stream *xdr, 7246bf269551SChuck Lever void *res) 72470f3e66c6SAndy Adamson { 72480f3e66c6SAndy Adamson struct compound_hdr hdr; 72490f3e66c6SAndy Adamson int status; 72500f3e66c6SAndy Adamson 7251bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 72520f3e66c6SAndy Adamson if (!status) 7253bf269551SChuck Lever status = decode_destroy_session(xdr, res); 72540f3e66c6SAndy Adamson return status; 72550f3e66c6SAndy Adamson } 72560f3e66c6SAndy Adamson 72570f3e66c6SAndy Adamson /* 725866245539STrond Myklebust * Decode DESTROY_CLIENTID response 725966245539STrond Myklebust */ 726066245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 726166245539STrond Myklebust struct xdr_stream *xdr, 726266245539STrond Myklebust void *res) 726366245539STrond Myklebust { 726466245539STrond Myklebust struct compound_hdr hdr; 726566245539STrond Myklebust int status; 726666245539STrond Myklebust 726766245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 726866245539STrond Myklebust if (!status) 726966245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 727066245539STrond Myklebust return status; 727166245539STrond Myklebust } 727266245539STrond Myklebust 727366245539STrond Myklebust /* 72748b173218SRicardo Labiaga * Decode SEQUENCE response 7275fc01cea9SAndy Adamson */ 7276bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 7277bf269551SChuck Lever struct xdr_stream *xdr, 7278fc016483SChristoph Hellwig void *res) 7279fc01cea9SAndy Adamson { 7280fc01cea9SAndy Adamson struct compound_hdr hdr; 7281fc01cea9SAndy Adamson int status; 7282fc01cea9SAndy Adamson 7283bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7284fc01cea9SAndy Adamson if (!status) 7285bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 7286fc01cea9SAndy Adamson return status; 7287fc01cea9SAndy Adamson } 7288fc01cea9SAndy Adamson 7289fc01cea9SAndy Adamson /* 72908b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 72912050f0ccSAndy Adamson */ 7292bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 7293bf269551SChuck Lever struct xdr_stream *xdr, 7294fc016483SChristoph Hellwig void *data) 72952050f0ccSAndy Adamson { 7296fc016483SChristoph Hellwig struct nfs4_get_lease_time_res *res = data; 72972050f0ccSAndy Adamson struct compound_hdr hdr; 72982050f0ccSAndy Adamson int status; 72992050f0ccSAndy Adamson 7300bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 73012050f0ccSAndy Adamson if (!status) 7302bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 73032050f0ccSAndy Adamson if (!status) 7304bf269551SChuck Lever status = decode_putrootfh(xdr); 73052050f0ccSAndy Adamson if (!status) 7306bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 73072050f0ccSAndy Adamson return status; 73082050f0ccSAndy Adamson } 730918019753SRicardo Labiaga 731018019753SRicardo Labiaga /* 731118019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 731218019753SRicardo Labiaga */ 7313bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 7314bf269551SChuck Lever struct xdr_stream *xdr, 7315fc016483SChristoph Hellwig void *data) 731618019753SRicardo Labiaga { 7317fc016483SChristoph Hellwig struct nfs41_reclaim_complete_res *res = data; 731818019753SRicardo Labiaga struct compound_hdr hdr; 731918019753SRicardo Labiaga int status; 732018019753SRicardo Labiaga 7321bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 732218019753SRicardo Labiaga if (!status) 7323bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 732418019753SRicardo Labiaga if (!status) 73258ee2b78aSHimangi Saraogi status = decode_reclaim_complete(xdr, NULL); 732618019753SRicardo Labiaga return status; 732718019753SRicardo Labiaga } 7328b1f69b75SAndy Adamson 7329b1f69b75SAndy Adamson /* 7330b1f69b75SAndy Adamson * Decode GETDEVINFO response 7331b1f69b75SAndy Adamson */ 7332bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 7333bf269551SChuck Lever struct xdr_stream *xdr, 7334fc016483SChristoph Hellwig void *data) 7335b1f69b75SAndy Adamson { 7336fc016483SChristoph Hellwig struct nfs4_getdeviceinfo_res *res = data; 7337b1f69b75SAndy Adamson struct compound_hdr hdr; 7338b1f69b75SAndy Adamson int status; 7339b1f69b75SAndy Adamson 7340bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7341b1f69b75SAndy Adamson if (status != 0) 7342b1f69b75SAndy Adamson goto out; 7343bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7344b1f69b75SAndy Adamson if (status != 0) 7345b1f69b75SAndy Adamson goto out; 73464e590803STrond Myklebust status = decode_getdeviceinfo(xdr, res); 7347b1f69b75SAndy Adamson out: 7348b1f69b75SAndy Adamson return status; 7349b1f69b75SAndy Adamson } 7350b1f69b75SAndy Adamson 7351b1f69b75SAndy Adamson /* 7352b1f69b75SAndy Adamson * Decode LAYOUTGET response 7353b1f69b75SAndy Adamson */ 7354bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 7355bf269551SChuck Lever struct xdr_stream *xdr, 7356fc016483SChristoph Hellwig void *data) 7357b1f69b75SAndy Adamson { 7358fc016483SChristoph Hellwig struct nfs4_layoutget_res *res = data; 7359b1f69b75SAndy Adamson struct compound_hdr hdr; 7360b1f69b75SAndy Adamson int status; 7361b1f69b75SAndy Adamson 7362bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7363b1f69b75SAndy Adamson if (status) 7364b1f69b75SAndy Adamson goto out; 7365bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7366b1f69b75SAndy Adamson if (status) 7367b1f69b75SAndy Adamson goto out; 7368bf269551SChuck Lever status = decode_putfh(xdr); 7369b1f69b75SAndy Adamson if (status) 7370b1f69b75SAndy Adamson goto out; 7371bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 7372b1f69b75SAndy Adamson out: 7373b1f69b75SAndy Adamson return status; 7374b1f69b75SAndy Adamson } 7375863a3c6cSAndy Adamson 7376863a3c6cSAndy Adamson /* 7377cbe82603SBenny Halevy * Decode LAYOUTRETURN response 7378cbe82603SBenny Halevy */ 7379cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 7380cbe82603SBenny Halevy struct xdr_stream *xdr, 7381fc016483SChristoph Hellwig void *data) 7382cbe82603SBenny Halevy { 7383fc016483SChristoph Hellwig struct nfs4_layoutreturn_res *res = data; 7384cbe82603SBenny Halevy struct compound_hdr hdr; 7385cbe82603SBenny Halevy int status; 7386cbe82603SBenny Halevy 7387cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 7388cbe82603SBenny Halevy if (status) 7389cbe82603SBenny Halevy goto out; 7390cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 7391cbe82603SBenny Halevy if (status) 7392cbe82603SBenny Halevy goto out; 7393cbe82603SBenny Halevy status = decode_putfh(xdr); 7394cbe82603SBenny Halevy if (status) 7395cbe82603SBenny Halevy goto out; 7396cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 7397cbe82603SBenny Halevy out: 7398cbe82603SBenny Halevy return status; 7399cbe82603SBenny Halevy } 7400cbe82603SBenny Halevy 7401cbe82603SBenny Halevy /* 7402863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 7403863a3c6cSAndy Adamson */ 7404863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 7405863a3c6cSAndy Adamson struct xdr_stream *xdr, 7406fc016483SChristoph Hellwig void *data) 7407863a3c6cSAndy Adamson { 7408fc016483SChristoph Hellwig struct nfs4_layoutcommit_res *res = data; 7409863a3c6cSAndy Adamson struct compound_hdr hdr; 7410863a3c6cSAndy Adamson int status; 7411863a3c6cSAndy Adamson 7412863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 7413863a3c6cSAndy Adamson if (status) 7414863a3c6cSAndy Adamson goto out; 7415863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 7416863a3c6cSAndy Adamson if (status) 7417863a3c6cSAndy Adamson goto out; 7418863a3c6cSAndy Adamson status = decode_putfh(xdr); 7419863a3c6cSAndy Adamson if (status) 7420863a3c6cSAndy Adamson goto out; 7421863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 7422863a3c6cSAndy Adamson if (status) 7423863a3c6cSAndy Adamson goto out; 74246926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 7425863a3c6cSAndy Adamson out: 7426863a3c6cSAndy Adamson return status; 7427863a3c6cSAndy Adamson } 7428fca78d6dSBryan Schumaker 7429fca78d6dSBryan Schumaker /* 7430fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7431fca78d6dSBryan Schumaker */ 7432fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7433fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7434fc016483SChristoph Hellwig void *data) 7435fca78d6dSBryan Schumaker { 7436fc016483SChristoph Hellwig struct nfs4_secinfo_res *res = data; 7437fca78d6dSBryan Schumaker struct compound_hdr hdr; 7438fca78d6dSBryan Schumaker int status; 7439fca78d6dSBryan Schumaker 7440fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7441fca78d6dSBryan Schumaker if (status) 7442fca78d6dSBryan Schumaker goto out; 7443fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7444fca78d6dSBryan Schumaker if (status) 7445fca78d6dSBryan Schumaker goto out; 7446fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7447fca78d6dSBryan Schumaker if (status) 7448fca78d6dSBryan Schumaker goto out; 744931e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7450fca78d6dSBryan Schumaker out: 7451fca78d6dSBryan Schumaker return status; 7452fca78d6dSBryan Schumaker } 74537d974794SBryan Schumaker 74547d974794SBryan Schumaker /* 74557d974794SBryan Schumaker * Decode TEST_STATEID response 74567d974794SBryan Schumaker */ 74577d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 74587d974794SBryan Schumaker struct xdr_stream *xdr, 7459fc016483SChristoph Hellwig void *data) 74607d974794SBryan Schumaker { 7461fc016483SChristoph Hellwig struct nfs41_test_stateid_res *res = data; 74627d974794SBryan Schumaker struct compound_hdr hdr; 74637d974794SBryan Schumaker int status; 74647d974794SBryan Schumaker 74657d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 74667d974794SBryan Schumaker if (status) 74677d974794SBryan Schumaker goto out; 74687d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 74697d974794SBryan Schumaker if (status) 74707d974794SBryan Schumaker goto out; 74717d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 74727d974794SBryan Schumaker out: 74737d974794SBryan Schumaker return status; 74747d974794SBryan Schumaker } 74759aeda35fSBryan Schumaker 74769aeda35fSBryan Schumaker /* 74779aeda35fSBryan Schumaker * Decode FREE_STATEID response 74789aeda35fSBryan Schumaker */ 74799aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 74809aeda35fSBryan Schumaker struct xdr_stream *xdr, 7481fc016483SChristoph Hellwig void *data) 74829aeda35fSBryan Schumaker { 7483fc016483SChristoph Hellwig struct nfs41_free_stateid_res *res = data; 74849aeda35fSBryan Schumaker struct compound_hdr hdr; 74859aeda35fSBryan Schumaker int status; 74869aeda35fSBryan Schumaker 74879aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 74889aeda35fSBryan Schumaker if (status) 74899aeda35fSBryan Schumaker goto out; 74909aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 74919aeda35fSBryan Schumaker if (status) 74929aeda35fSBryan Schumaker goto out; 74939aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 74949aeda35fSBryan Schumaker out: 74959aeda35fSBryan Schumaker return status; 74969aeda35fSBryan Schumaker } 749799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 749899fe60d0SBenny Halevy 7499573c4e1eSChuck Lever /** 7500573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7501573c4e1eSChuck Lever * the local page cache. 7502573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7503573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7504573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7505573c4e1eSChuck Lever * 7506573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7507573c4e1eSChuck Lever * returned. 7508573c4e1eSChuck Lever * 7509573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7510573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7511573c4e1eSChuck Lever * on a directory already in our cache. 7512573c4e1eSChuck Lever */ 7513573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7514a7a3b1e9SBenjamin Coddington bool plus) 75151da177e4SLinus Torvalds { 7516256e48bbSTrond Myklebust unsigned int savep; 7517dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 75181da177e4SLinus Torvalds uint32_t len; 7519babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7520babddc72SBryan Schumaker if (unlikely(!p)) 7521babddc72SBryan Schumaker goto out_overflow; 7522c08e76d0SChuck Lever if (*p == xdr_zero) { 7523babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7524babddc72SBryan Schumaker if (unlikely(!p)) 7525babddc72SBryan Schumaker goto out_overflow; 7526c08e76d0SChuck Lever if (*p == xdr_zero) 7527573c4e1eSChuck Lever return -EAGAIN; 75281da177e4SLinus Torvalds entry->eof = 1; 7529573c4e1eSChuck Lever return -EBADCOOKIE; 75301da177e4SLinus Torvalds } 75311da177e4SLinus Torvalds 7532babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7533babddc72SBryan Schumaker if (unlikely(!p)) 7534babddc72SBryan Schumaker goto out_overflow; 75351da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 75361da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7537c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7538babddc72SBryan Schumaker 75399af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7540babddc72SBryan Schumaker if (unlikely(!p)) 7541babddc72SBryan Schumaker goto out_overflow; 75421da177e4SLinus Torvalds entry->name = (const char *) p; 75431da177e4SLinus Torvalds 75441da177e4SLinus Torvalds /* 75451da177e4SLinus Torvalds * In case the server doesn't return an inode number, 75461da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 75471da177e4SLinus Torvalds * since glibc seems to choke on it...) 75481da177e4SLinus Torvalds */ 75491da177e4SLinus Torvalds entry->ino = 1; 75504f082222STrond Myklebust entry->fattr->valid = 0; 75511da177e4SLinus Torvalds 75529af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7553babddc72SBryan Schumaker goto out_overflow; 75549af8c222STrond Myklebust 7555256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7556babddc72SBryan Schumaker goto out_overflow; 75579af8c222STrond Myklebust 7558573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 7559aa9c2669SDavid Quigley NULL, entry->label, entry->server) < 0) 7560babddc72SBryan Schumaker goto out_overflow; 756128331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 756228331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 756328331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 756482f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 75659af8c222STrond Myklebust 75660b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 75670b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 75680b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 75690b26a0bfSTrond Myklebust 7570573c4e1eSChuck Lever return 0; 7571babddc72SBryan Schumaker 7572babddc72SBryan Schumaker out_overflow: 7573babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7574573c4e1eSChuck Lever return -EAGAIN; 75751da177e4SLinus Torvalds } 75761da177e4SLinus Torvalds 75771da177e4SLinus Torvalds /* 75781da177e4SLinus Torvalds * We need to translate between nfs status return values and 75791da177e4SLinus Torvalds * the local errno values which may not be the same. 75801da177e4SLinus Torvalds */ 75811da177e4SLinus Torvalds static struct { 75821da177e4SLinus Torvalds int stat; 75831da177e4SLinus Torvalds int errno; 75841da177e4SLinus Torvalds } nfs_errtbl[] = { 75851da177e4SLinus Torvalds { NFS4_OK, 0 }, 7586856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7587856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7588856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7589856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7590856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7591856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7592856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7593856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7594856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7595856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7596856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7597856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7598856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7599856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7600856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7601856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7602856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7603856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7604856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7605856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7606856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7607856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7608fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7609856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7610856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7611856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7612856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7613856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7614856dff3dSBenny Halevy { -1, -EIO } 76151da177e4SLinus Torvalds }; 76161da177e4SLinus Torvalds 76171da177e4SLinus Torvalds /* 76181da177e4SLinus Torvalds * Convert an NFS error code to a local one. 76191da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 76201da177e4SLinus Torvalds */ 76211da177e4SLinus Torvalds static int 76220a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 76231da177e4SLinus Torvalds { 76241da177e4SLinus Torvalds int i; 76251da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 76261da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 76271da177e4SLinus Torvalds return nfs_errtbl[i].errno; 76281da177e4SLinus Torvalds } 76291da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 76301da177e4SLinus Torvalds /* The server is looney tunes. */ 7631fdcb4577STrond Myklebust return -EREMOTEIO; 76321da177e4SLinus Torvalds } 76331da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 76341da177e4SLinus Torvalds * handle it. 76351da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 76361da177e4SLinus Torvalds * not conflict with native Linux error codes. 76371da177e4SLinus Torvalds */ 7638856dff3dSBenny Halevy return -stat; 76391da177e4SLinus Torvalds } 76401da177e4SLinus Torvalds 76411c6dcbe5SAnna Schumaker #ifdef CONFIG_NFS_V4_2 76421c6dcbe5SAnna Schumaker #include "nfs42xdr.c" 76431c6dcbe5SAnna Schumaker #endif /* CONFIG_NFS_V4_2 */ 76441c6dcbe5SAnna Schumaker 76451da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 76461da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 76471da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 7648fcc85819SChristoph Hellwig .p_encode = nfs4_xdr_##argtype, \ 7649fc016483SChristoph Hellwig .p_decode = nfs4_xdr_##restype, \ 76502bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 76512bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7652cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7653cc0175c1SChuck Lever .p_name = #proc, \ 76541da177e4SLinus Torvalds } 76551da177e4SLinus Torvalds 76567c61f0d3SAnna Schumaker #define STUB(proc) \ 76577c61f0d3SAnna Schumaker [NFSPROC4_CLNT_##proc] = { \ 76587c61f0d3SAnna Schumaker .p_name = #proc, \ 76597c61f0d3SAnna Schumaker } 76607c61f0d3SAnna Schumaker 76618634ef5eSTrond Myklebust #if defined(CONFIG_NFS_V4_1) 76628634ef5eSTrond Myklebust #define PROC41(proc, argtype, restype) \ 76638634ef5eSTrond Myklebust PROC(proc, argtype, restype) 76648634ef5eSTrond Myklebust #else 76658634ef5eSTrond Myklebust #define PROC41(proc, argtype, restype) \ 76668634ef5eSTrond Myklebust STUB(proc) 76678634ef5eSTrond Myklebust #endif 76688634ef5eSTrond Myklebust 76698634ef5eSTrond Myklebust #if defined(CONFIG_NFS_V4_2) 76708634ef5eSTrond Myklebust #define PROC42(proc, argtype, restype) \ 76718634ef5eSTrond Myklebust PROC(proc, argtype, restype) 76728634ef5eSTrond Myklebust #else 76738634ef5eSTrond Myklebust #define PROC42(proc, argtype, restype) \ 76748634ef5eSTrond Myklebust STUB(proc) 76758634ef5eSTrond Myklebust #endif 76768634ef5eSTrond Myklebust 7677511e936bSChristoph Hellwig const struct rpc_procinfo nfs4_procedures[] = { 76781da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 76791da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 76801da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 76811da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 76821da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 76831da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 76841da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 76851da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 76861da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 76871da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 76881da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 76891da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 76901da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 76911da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 76921da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 76931da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 76941da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 76951da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 76961da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 76971da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 76981da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 76991da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 77001da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 77011da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 77021da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 77031da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 77041da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 77051da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 77061da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 77071da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 77081da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7709029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 771023ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7711683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7712d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 77135a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 771444c99933SChuck Lever PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present), 77158634ef5eSTrond Myklebust PROC41(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 77168634ef5eSTrond Myklebust PROC41(CREATE_SESSION, enc_create_session, dec_create_session), 77178634ef5eSTrond Myklebust PROC41(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 77188634ef5eSTrond Myklebust PROC41(SEQUENCE, enc_sequence, dec_sequence), 77198634ef5eSTrond Myklebust PROC41(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 77208634ef5eSTrond Myklebust PROC41(RECLAIM_COMPLETE,enc_reclaim_complete, dec_reclaim_complete), 77218634ef5eSTrond Myklebust PROC41(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 77228634ef5eSTrond Myklebust PROC41(LAYOUTGET, enc_layoutget, dec_layoutget), 77238634ef5eSTrond Myklebust PROC41(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 77248634ef5eSTrond Myklebust PROC41(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 77258634ef5eSTrond Myklebust PROC41(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 77268634ef5eSTrond Myklebust PROC41(TEST_STATEID, enc_test_stateid, dec_test_stateid), 77278634ef5eSTrond Myklebust PROC41(FREE_STATEID, enc_free_stateid, dec_free_stateid), 77287c61f0d3SAnna Schumaker STUB(GETDEVICELIST), 77298634ef5eSTrond Myklebust PROC41(BIND_CONN_TO_SESSION, 7730ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 77318634ef5eSTrond Myklebust PROC41(DESTROY_CLIENTID,enc_destroy_clientid, dec_destroy_clientid), 77328634ef5eSTrond Myklebust PROC42(SEEK, enc_seek, dec_seek), 77338634ef5eSTrond Myklebust PROC42(ALLOCATE, enc_allocate, dec_allocate), 77348634ef5eSTrond Myklebust PROC42(DEALLOCATE, enc_deallocate, dec_deallocate), 77358634ef5eSTrond Myklebust PROC42(LAYOUTSTATS, enc_layoutstats, dec_layoutstats), 77368634ef5eSTrond Myklebust PROC42(CLONE, enc_clone, dec_clone), 77378634ef5eSTrond Myklebust PROC42(COPY, enc_copy, dec_copy), 77388634ef5eSTrond Myklebust PROC(LOOKUPP, enc_lookupp, dec_lookupp), 77391da177e4SLinus Torvalds }; 77401da177e4SLinus Torvalds 7741c551858aSChristoph Hellwig static unsigned int nfs_version4_counts[ARRAY_SIZE(nfs4_procedures)]; 7742a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 77431da177e4SLinus Torvalds .number = 4, 7744e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 7745c551858aSChristoph Hellwig .procs = nfs4_procedures, 7746c551858aSChristoph Hellwig .counts = nfs_version4_counts, 77471da177e4SLinus Torvalds }; 77481da177e4SLinus Torvalds 77491da177e4SLinus Torvalds /* 77501da177e4SLinus Torvalds * Local variables: 77511da177e4SLinus Torvalds * c-basic-offset: 8 77521da177e4SLinus Torvalds * End: 77531da177e4SLinus Torvalds */ 7754