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) 1021da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 1031da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 104bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 105bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 106aa9c2669SDavid Quigley #ifdef CONFIG_NFS_V4_SECURITY_LABEL 107aa9c2669SDavid Quigley /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */ 108aa9c2669SDavid Quigley #define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN)) 109aa9c2669SDavid Quigley #else 110aa9c2669SDavid Quigley #define nfs4_label_maxsz 0 111aa9c2669SDavid Quigley #endif 11288034c3dSAndy Adamson /* We support only one layout type per file system */ 11388034c3dSAndy Adamson #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8) 11496928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 11596928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 11688034c3dSAndy Adamson 3 + 3 + 3 + nfs4_owner_maxsz + \ 117aa9c2669SDavid Quigley nfs4_group_maxsz + nfs4_label_maxsz + \ 118aa9c2669SDavid Quigley decode_mdsthreshold_maxsz)) 11996928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 12096928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 12196928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1229104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1239104a55dSTrond Myklebust 1 + 2 + 1 + \ 1249104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1259104a55dSTrond Myklebust nfs4_group_maxsz + \ 126aa9c2669SDavid Quigley nfs4_label_maxsz + \ 1279104a55dSTrond Myklebust 4 + 4) 1281da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1291da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 13056ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 13156ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1322f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 133dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 134dae100c2SFred Isaman * layout types will be returned. 135dae100c2SFred Isaman */ 136dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 137dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1381da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1391da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1401da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1411da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 142cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 143b8fb2f59SJeff Layton /* client name */ \ 144b8fb2f59SJeff Layton 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 145cc38bac3SChuck Lever 1 /* sc_prog */ + \ 1466dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1476dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 148cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1491da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1501da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1516dd3436bSChuck Lever 2 /* clientid */ + \ 1526dd3436bSChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 1536dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 1546dd3436bSChuck Lever 1 + XDR_QUADLEN(RPCBIND_MAXUADDRLEN)) 1551da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1561da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1571da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1581da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1591da177e4SLinus Torvalds (op_decode_hdr_maxsz) 160e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 161e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1622cebf828STrond Myklebust #define encode_share_access_maxsz \ 1632cebf828STrond Myklebust (2) 1644882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1652cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1662cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1672cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1682cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1692cebf828STrond Myklebust open_owner_id_maxsz + \ 1702cebf828STrond Myklebust encode_opentype_maxsz + \ 1712cebf828STrond Myklebust encode_claim_null_maxsz) 1725a1f6d9eSTrond Myklebust #define decode_space_limit_maxsz (3) 1732cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1749104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1755a1f6d9eSTrond Myklebust decode_space_limit_maxsz + \ 1762cebf828STrond Myklebust decode_ace_maxsz) 1772cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1782cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1799104a55dSTrond Myklebust decode_stateid_maxsz + \ 1802cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1812cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1822cebf828STrond Myklebust decode_delegation_maxsz) 1839104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1849104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1859104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1869104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1879104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1889104a55dSTrond Myklebust decode_stateid_maxsz) 1899104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1909104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1919104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1929104a55dSTrond Myklebust encode_share_access_maxsz) 1939104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1949104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1959104a55dSTrond Myklebust decode_stateid_maxsz) 1969104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1979104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1989104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1999104a55dSTrond Myklebust decode_stateid_maxsz) 2009104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 2019104a55dSTrond Myklebust encode_stateid_maxsz + \ 2029104a55dSTrond Myklebust encode_attrs_maxsz) 2039104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 2049104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 2059104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 2069104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2079104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 2089104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 209aa9c2669SDavid Quigley 2 + encode_verifier_maxsz + 5 + \ 210aa9c2669SDavid Quigley nfs4_label_maxsz) 2119104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 212a7697f6fSChuck Lever decode_verifier_maxsz) 2139104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 2149104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 2159104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 2169104a55dSTrond Myklebust encode_stateid_maxsz + 4) 2179104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2189104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 2199104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 2209104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2219104a55dSTrond Myklebust decode_verifier_maxsz) 2221da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2231da177e4SLinus Torvalds nfs4_name_maxsz) 2246ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2256ce18391SBenny Halevy decode_change_info_maxsz) 2261da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2271da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2286ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2296ce18391SBenny Halevy decode_change_info_maxsz + \ 2306ce18391SBenny Halevy decode_change_info_maxsz) 2311da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2321da177e4SLinus Torvalds nfs4_name_maxsz) 2336ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 234daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2359104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2369104a55dSTrond Myklebust 7 + \ 237daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 238daccbdedSTrond Myklebust encode_lockowner_maxsz) 2399104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2409104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2419104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2429104a55dSTrond Myklebust decode_lock_denied_maxsz) 243daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 244daccbdedSTrond Myklebust encode_lockowner_maxsz) 2459104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2469104a55dSTrond Myklebust decode_lock_denied_maxsz) 2479104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2489104a55dSTrond Myklebust encode_stateid_maxsz + \ 2499104a55dSTrond Myklebust 4) 2509104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2519104a55dSTrond Myklebust decode_stateid_maxsz) 252d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 253d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 254d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 255d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 256d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2579104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2589104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2591da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2601da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 26194a6d753SChuck Lever 1 + \ 26296928206SJ. Bruce Fields nfs4_fattr_maxsz) 2631da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2641da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2659104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2669104a55dSTrond Myklebust encode_attrs_maxsz) 2672cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2682cebf828STrond Myklebust decode_change_info_maxsz + \ 2692cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2709104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2719104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2721da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2731da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2749104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2759104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2769104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2779104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2789104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2799104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 280e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 281e6889620STrond Myklebust (encode_getattr_maxsz) 282e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 283e6889620STrond Myklebust (0) 2845a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2851650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2869b7b9fccSAndy Adamson 2879b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 288fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 289d751f748SJim Rees #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \ 290d751f748SJim Rees sizeof(utsname()->version) + sizeof(utsname()->machine) + 8) 291fc931582SAndy Adamson 29299fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 29399fe60d0SBenny Halevy encode_verifier_maxsz + \ 29499fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 295b8fb2f59SJeff Layton /* eia_clientowner */ \ 296b8fb2f59SJeff Layton 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 29799fe60d0SBenny Halevy 1 /* flags */ + \ 29899fe60d0SBenny Halevy 1 /* spa_how */ + \ 2992031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 3002031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 3012031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 302db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 303db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 304db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 305db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 306d751f748SJim Rees XDR_QUADLEN(IMPL_NAME_LIMIT) + \ 307db8ac8baSWeston Andros Adamson 3 /* nii_date */) 30899fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 30999fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 31099fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 31199fe60d0SBenny Halevy 1 /* eir_flags */ + \ 31299fe60d0SBenny Halevy 1 /* spr_how */ + \ 3132031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 3142031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 3152031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 31699fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 31799fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 31899fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 31999fe60d0SBenny Halevy /* eir_server_scope<> */ \ 32099fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 32199fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 3227d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 3237d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3247d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 3257d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3267d2ed9acSWeston Andros Adamson 3 /* nii_date */) 327fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 328fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 329fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 330fc931582SAndy Adamson 1 /* ca_rdma_ird */) 331fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 332fc931582SAndy Adamson 2 /* csa_clientid */ + \ 333fc931582SAndy Adamson 1 /* csa_sequence */ + \ 334fc931582SAndy Adamson 1 /* csa_flags */ + \ 335fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 336fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 337fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 338fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 339fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 340fc931582SAndy Adamson 1 /* stamp */ + \ 341fc931582SAndy Adamson 1 /* machinename.len */ + \ 342fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 343fc931582SAndy Adamson 1 /* uid */ + \ 344fc931582SAndy Adamson 1 /* gid */ + \ 345fc931582SAndy Adamson 1 /* gids.len (0) */) 346fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 347fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 348fc931582SAndy Adamson 1 /* csr_sequence */ + \ 349fc931582SAndy Adamson 1 /* csr_flags */ + \ 350fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 351fc931582SAndy Adamson decode_channel_attrs_maxsz) 3527c44f1aeSWeston Andros Adamson #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ 3537c44f1aeSWeston Andros Adamson /* bctsa_sessid */ \ 3547c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3557c44f1aeSWeston Andros Adamson 1 /* bctsa_dir */ + \ 3567c44f1aeSWeston Andros Adamson 1 /* bctsa_use_conn_in_rdma_mode */) 3577c44f1aeSWeston Andros Adamson #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ 3587c44f1aeSWeston Andros Adamson /* bctsr_sessid */ \ 3597c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3607c44f1aeSWeston Andros Adamson 1 /* bctsr_dir */ + \ 3617c44f1aeSWeston Andros Adamson 1 /* bctsr_use_conn_in_rdma_mode */) 3620f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3630f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 36466245539STrond Myklebust #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) 36566245539STrond Myklebust #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) 366fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 367fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 368fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 369fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 37018019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 37118019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 37284c9dee3SChristoph Hellwig #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + \ 37384c9dee3SChristoph Hellwig XDR_QUADLEN(NFS4_DEVICEID4_SIZE) + \ 37484c9dee3SChristoph Hellwig 1 /* layout type */ + \ 37584c9dee3SChristoph Hellwig 1 /* maxcount */ + \ 37684c9dee3SChristoph Hellwig 1 /* bitmap size */ + \ 37784c9dee3SChristoph Hellwig 1 /* notification bitmap length */ + \ 37884c9dee3SChristoph Hellwig 1 /* notification bitmap, word 0 */) 379b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 380b1f69b75SAndy Adamson 1 /* layout type */ + \ 381b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 382b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 383b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 38484c9dee3SChristoph Hellwig 1 /* notification bitmap, word 0 */) 385b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 386b1f69b75SAndy Adamson encode_stateid_maxsz) 387b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 388b1f69b75SAndy Adamson decode_stateid_maxsz + \ 389b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 390863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 391863a3c6cSAndy Adamson 2 /* offset */ + \ 392863a3c6cSAndy Adamson 2 /* length */ + \ 393863a3c6cSAndy Adamson 1 /* reclaim */ + \ 394863a3c6cSAndy Adamson encode_stateid_maxsz + \ 395863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 396863a3c6cSAndy Adamson 2 /* last byte written */ + \ 397863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 398863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 3995f919c9fSChristoph Hellwig 1 /* layoutupdate4 opaqueue len */) 4005f919c9fSChristoph Hellwig /* the actual content of layoutupdate4 should 4015f919c9fSChristoph Hellwig be allocated by drivers and spliced in 4025f919c9fSChristoph Hellwig using xdr_write_pages */ 403863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 404cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 405cbe82603SBenny Halevy encode_stateid_maxsz + \ 4066669cb8bSTrond Myklebust 1 + \ 4076669cb8bSTrond Myklebust XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) 408cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 409cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 410fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 411fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 4127d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 4137d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4147d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 4159aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 4169aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4179f79fb48SAndy Adamson #define decode_free_stateid_maxsz (op_decode_hdr_maxsz) 4189b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 4199b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 4209b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 421cf805165STrond Myklebust #define encode_layoutreturn_maxsz 0 422cf805165STrond Myklebust #define decode_layoutreturn_maxsz 0 4239b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 4249b7b9fccSAndy Adamson 4251da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 4261da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 4271da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 4289b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4291da177e4SLinus Torvalds encode_putfh_maxsz + \ 4309104a55dSTrond Myklebust encode_read_maxsz) 4311da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 4329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4331da177e4SLinus Torvalds decode_putfh_maxsz + \ 4349104a55dSTrond Myklebust decode_read_maxsz) 4351da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 4369b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4371da177e4SLinus Torvalds encode_putfh_maxsz + \ 4389104a55dSTrond Myklebust encode_readlink_maxsz) 4391da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4409b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4411da177e4SLinus Torvalds decode_putfh_maxsz + \ 4429104a55dSTrond Myklebust decode_readlink_maxsz) 4431da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4449b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4451da177e4SLinus Torvalds encode_putfh_maxsz + \ 4469104a55dSTrond Myklebust encode_readdir_maxsz) 4471da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4491da177e4SLinus Torvalds decode_putfh_maxsz + \ 4509104a55dSTrond Myklebust decode_readdir_maxsz) 4511da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4529b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4531da177e4SLinus Torvalds encode_putfh_maxsz + \ 4549104a55dSTrond Myklebust encode_write_maxsz + \ 4554f9838c7STrond Myklebust encode_getattr_maxsz) 4561da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4579b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4581da177e4SLinus Torvalds decode_putfh_maxsz + \ 4599104a55dSTrond Myklebust decode_write_maxsz + \ 4604f9838c7STrond Myklebust decode_getattr_maxsz) 4611da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4629b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4631da177e4SLinus Torvalds encode_putfh_maxsz + \ 4648582715eSTrond Myklebust encode_commit_maxsz) 4651da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4669b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4671da177e4SLinus Torvalds decode_putfh_maxsz + \ 4688582715eSTrond Myklebust decode_commit_maxsz) 4691da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4709b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4711da177e4SLinus Torvalds encode_putfh_maxsz + \ 4722cebf828STrond Myklebust encode_open_maxsz + \ 4736168f62cSWeston Andros Adamson encode_access_maxsz + \ 4742cebf828STrond Myklebust encode_getfh_maxsz + \ 4752cebf828STrond Myklebust encode_getattr_maxsz) 4761da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4781da177e4SLinus Torvalds decode_putfh_maxsz + \ 4792cebf828STrond Myklebust decode_open_maxsz + \ 4806168f62cSWeston Andros Adamson decode_access_maxsz + \ 4812cebf828STrond Myklebust decode_getfh_maxsz + \ 4822cebf828STrond Myklebust decode_getattr_maxsz) 4831da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4841da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4851da177e4SLinus Torvalds encode_putfh_maxsz + \ 4869104a55dSTrond Myklebust encode_open_confirm_maxsz) 4879104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4889104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4891da177e4SLinus Torvalds decode_putfh_maxsz + \ 4909104a55dSTrond Myklebust decode_open_confirm_maxsz) 4911da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4931da177e4SLinus Torvalds encode_putfh_maxsz + \ 4942cebf828STrond Myklebust encode_open_maxsz + \ 4956168f62cSWeston Andros Adamson encode_access_maxsz + \ 4962cebf828STrond Myklebust encode_getattr_maxsz) 4971da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4989b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4991da177e4SLinus Torvalds decode_putfh_maxsz + \ 5002cebf828STrond Myklebust decode_open_maxsz + \ 5016168f62cSWeston Andros Adamson decode_access_maxsz + \ 5022cebf828STrond Myklebust decode_getattr_maxsz) 5031da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 5041da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5061da177e4SLinus Torvalds encode_putfh_maxsz + \ 507b6808145STrond Myklebust encode_layoutreturn_maxsz + \ 5083947b74dSTrond Myklebust encode_open_downgrade_maxsz) 5091da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 5101da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5119b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5121da177e4SLinus Torvalds decode_putfh_maxsz + \ 513b6808145STrond Myklebust decode_layoutreturn_maxsz + \ 5143947b74dSTrond Myklebust decode_open_downgrade_maxsz) 5151da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 5169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5171da177e4SLinus Torvalds encode_putfh_maxsz + \ 518cf805165STrond Myklebust encode_layoutreturn_maxsz + \ 5199104a55dSTrond Myklebust encode_close_maxsz + \ 520516a6af6STrond Myklebust encode_getattr_maxsz) 5211da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 5229b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5231da177e4SLinus Torvalds decode_putfh_maxsz + \ 524cf805165STrond Myklebust decode_layoutreturn_maxsz + \ 5259104a55dSTrond Myklebust decode_close_maxsz + \ 526516a6af6STrond Myklebust decode_getattr_maxsz) 5271da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 5289b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5291da177e4SLinus Torvalds encode_putfh_maxsz + \ 5309104a55dSTrond Myklebust encode_setattr_maxsz + \ 5311da177e4SLinus Torvalds encode_getattr_maxsz) 5321da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5339b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5341da177e4SLinus Torvalds decode_putfh_maxsz + \ 5359104a55dSTrond Myklebust decode_setattr_maxsz + \ 5369104a55dSTrond Myklebust decode_getattr_maxsz) 5371da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5389b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5391da177e4SLinus Torvalds encode_putfh_maxsz + \ 5401da177e4SLinus Torvalds encode_fsinfo_maxsz) 5411da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5429b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5431da177e4SLinus Torvalds decode_putfh_maxsz + \ 5441da177e4SLinus Torvalds decode_fsinfo_maxsz) 5451da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5461da177e4SLinus Torvalds encode_renew_maxsz) 5471da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5481da177e4SLinus Torvalds decode_renew_maxsz) 5491da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5501da177e4SLinus Torvalds encode_setclientid_maxsz) 5511da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5521da177e4SLinus Torvalds decode_setclientid_maxsz) 5531da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5541da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 55583ca7f5aSChuck Lever encode_setclientid_confirm_maxsz) 5561da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5571da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 55883ca7f5aSChuck Lever decode_setclientid_confirm_maxsz) 5591da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5609b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5611da177e4SLinus Torvalds encode_putfh_maxsz + \ 5629104a55dSTrond Myklebust encode_lock_maxsz) 5631da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5651da177e4SLinus Torvalds decode_putfh_maxsz + \ 5669104a55dSTrond Myklebust decode_lock_maxsz) 5671da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5689b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5691da177e4SLinus Torvalds encode_putfh_maxsz + \ 5709104a55dSTrond Myklebust encode_lockt_maxsz) 5719104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5729b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5739104a55dSTrond Myklebust decode_putfh_maxsz + \ 5749104a55dSTrond Myklebust decode_lockt_maxsz) 5751da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5769b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5771da177e4SLinus Torvalds encode_putfh_maxsz + \ 5789104a55dSTrond Myklebust encode_locku_maxsz) 5791da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5811da177e4SLinus Torvalds decode_putfh_maxsz + \ 5829104a55dSTrond Myklebust decode_locku_maxsz) 583d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 584d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 585d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 586d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 587d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 588d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5891da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5909b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5911da177e4SLinus Torvalds encode_putfh_maxsz + \ 59276b32999STrond Myklebust encode_access_maxsz + \ 59376b32999STrond Myklebust encode_getattr_maxsz) 5941da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5959b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5961da177e4SLinus Torvalds decode_putfh_maxsz + \ 59776b32999STrond Myklebust decode_access_maxsz + \ 59876b32999STrond Myklebust decode_getattr_maxsz) 5991da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 6009b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6011da177e4SLinus Torvalds encode_putfh_maxsz + \ 60244c99933SChuck Lever encode_getattr_maxsz + \ 60344c99933SChuck Lever encode_renew_maxsz) 6041da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 6059b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6061da177e4SLinus Torvalds decode_putfh_maxsz + \ 60744c99933SChuck Lever decode_getattr_maxsz + \ 60844c99933SChuck Lever decode_renew_maxsz) 6091da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 6109b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6111da177e4SLinus Torvalds encode_putfh_maxsz + \ 6121da177e4SLinus Torvalds encode_lookup_maxsz + \ 6131da177e4SLinus Torvalds encode_getattr_maxsz + \ 6141da177e4SLinus Torvalds encode_getfh_maxsz) 6151da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 6169b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6171da177e4SLinus Torvalds decode_putfh_maxsz + \ 618e6889620STrond Myklebust decode_lookup_maxsz + \ 6191da177e4SLinus Torvalds decode_getattr_maxsz + \ 6201da177e4SLinus Torvalds decode_getfh_maxsz) 6211da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 6229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6231da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6241da177e4SLinus Torvalds encode_getattr_maxsz + \ 6251da177e4SLinus Torvalds encode_getfh_maxsz) 6261da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6281da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6291da177e4SLinus Torvalds decode_getattr_maxsz + \ 6301da177e4SLinus Torvalds decode_getfh_maxsz) 6311da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6329b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6331da177e4SLinus Torvalds encode_putfh_maxsz + \ 634778d2817STrond Myklebust encode_remove_maxsz) 6351da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6369b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6371da177e4SLinus Torvalds decode_putfh_maxsz + \ 638778d2817STrond Myklebust decode_remove_maxsz) 6391da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6409b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6411da177e4SLinus Torvalds encode_putfh_maxsz + \ 6421da177e4SLinus Torvalds encode_savefh_maxsz + \ 6431da177e4SLinus Torvalds encode_putfh_maxsz + \ 644778d2817STrond Myklebust encode_rename_maxsz) 6451da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6469b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6471da177e4SLinus Torvalds decode_putfh_maxsz + \ 6481da177e4SLinus Torvalds decode_savefh_maxsz + \ 6491da177e4SLinus Torvalds decode_putfh_maxsz + \ 650778d2817STrond Myklebust decode_rename_maxsz) 6511da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6529b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6531da177e4SLinus Torvalds encode_putfh_maxsz + \ 6541da177e4SLinus Torvalds encode_savefh_maxsz + \ 6551da177e4SLinus Torvalds encode_putfh_maxsz + \ 65691ba2eeeSTrond Myklebust encode_link_maxsz + \ 65791ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 658a9f6991bSTrond Myklebust encode_getattr_maxsz) 6591da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6609b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6611da177e4SLinus Torvalds decode_putfh_maxsz + \ 6621da177e4SLinus Torvalds decode_savefh_maxsz + \ 6631da177e4SLinus Torvalds decode_putfh_maxsz + \ 66491ba2eeeSTrond Myklebust decode_link_maxsz + \ 66591ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 66691ba2eeeSTrond Myklebust decode_getattr_maxsz) 6671da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6689b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6691da177e4SLinus Torvalds encode_putfh_maxsz + \ 6701da177e4SLinus Torvalds encode_symlink_maxsz + \ 6711da177e4SLinus Torvalds encode_getattr_maxsz + \ 6721da177e4SLinus Torvalds encode_getfh_maxsz) 6731da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6749b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6751da177e4SLinus Torvalds decode_putfh_maxsz + \ 6761da177e4SLinus Torvalds decode_symlink_maxsz + \ 6771da177e4SLinus Torvalds decode_getattr_maxsz + \ 6781da177e4SLinus Torvalds decode_getfh_maxsz) 6791da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6809b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6811da177e4SLinus Torvalds encode_putfh_maxsz + \ 6821da177e4SLinus Torvalds encode_create_maxsz + \ 68356ae19f3STrond Myklebust encode_getfh_maxsz + \ 68456ae19f3STrond Myklebust encode_getattr_maxsz) 6851da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6869b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6871da177e4SLinus Torvalds decode_putfh_maxsz + \ 6881da177e4SLinus Torvalds decode_create_maxsz + \ 68956ae19f3STrond Myklebust decode_getfh_maxsz + \ 69056ae19f3STrond Myklebust decode_getattr_maxsz) 6911da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6931da177e4SLinus Torvalds encode_putfh_maxsz + \ 6941da177e4SLinus Torvalds encode_getattr_maxsz) 6951da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6969b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6971da177e4SLinus Torvalds decode_putfh_maxsz + \ 6981da177e4SLinus Torvalds decode_getattr_maxsz) 6991da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 7009b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7011da177e4SLinus Torvalds encode_putfh_maxsz + \ 7029104a55dSTrond Myklebust encode_statfs_maxsz) 7031da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 7049b7b9fccSAndy Adamson decode_sequence_maxsz + \ 7051da177e4SLinus Torvalds decode_putfh_maxsz + \ 7069104a55dSTrond Myklebust decode_statfs_maxsz) 7071da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 7089b7b9fccSAndy Adamson encode_sequence_maxsz + \ 709ab91f264STrond Myklebust encode_putfh_maxsz + \ 7101da177e4SLinus Torvalds encode_getattr_maxsz) 7111da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 7129b7b9fccSAndy Adamson decode_sequence_maxsz + \ 713ab91f264STrond Myklebust decode_putfh_maxsz + \ 7141da177e4SLinus Torvalds decode_getattr_maxsz) 7151da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 7169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7171da177e4SLinus Torvalds encode_putfh_maxsz + \ 718586f1c39STrond Myklebust encode_layoutreturn_maxsz + \ 719fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 720fa178f29STrond Myklebust encode_getattr_maxsz) 7211da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 7229b7b9fccSAndy Adamson decode_sequence_maxsz + \ 723d8434d4cSTrond Myklebust decode_putfh_maxsz + \ 724586f1c39STrond Myklebust decode_layoutreturn_maxsz + \ 725fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 726fa178f29STrond Myklebust decode_getattr_maxsz) 727029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7289b7b9fccSAndy Adamson encode_sequence_maxsz + \ 729029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7309104a55dSTrond Myklebust encode_getacl_maxsz) 731029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 733029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7349104a55dSTrond Myklebust decode_getacl_maxsz) 73523ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7369b7b9fccSAndy Adamson encode_sequence_maxsz + \ 73723ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7389104a55dSTrond Myklebust encode_setacl_maxsz) 73923ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7409b7b9fccSAndy Adamson decode_sequence_maxsz + \ 74123ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7429104a55dSTrond Myklebust decode_setacl_maxsz) 743683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 744683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 746683b57b4STrond Myklebust encode_putfh_maxsz + \ 747e6889620STrond Myklebust encode_lookup_maxsz + \ 748b03d735bSChuck Lever encode_fs_locations_maxsz + \ 749b03d735bSChuck Lever encode_renew_maxsz) 750683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 751683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7529b7b9fccSAndy Adamson decode_sequence_maxsz + \ 753683b57b4STrond Myklebust decode_putfh_maxsz + \ 754e6889620STrond Myklebust decode_lookup_maxsz + \ 755b03d735bSChuck Lever decode_fs_locations_maxsz + \ 756b03d735bSChuck Lever decode_renew_maxsz) 7575a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7585a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7595a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7605a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7615a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7625a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7635a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7645a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 76544c99933SChuck Lever #define NFS4_enc_fsid_present_sz \ 76644c99933SChuck Lever (compound_encode_hdr_maxsz + \ 76744c99933SChuck Lever encode_sequence_maxsz + \ 76844c99933SChuck Lever encode_putfh_maxsz + \ 76944c99933SChuck Lever encode_getfh_maxsz + \ 77044c99933SChuck Lever encode_renew_maxsz) 77144c99933SChuck Lever #define NFS4_dec_fsid_present_sz \ 77244c99933SChuck Lever (compound_decode_hdr_maxsz + \ 77344c99933SChuck Lever decode_sequence_maxsz + \ 77444c99933SChuck Lever decode_putfh_maxsz + \ 77544c99933SChuck Lever decode_getfh_maxsz + \ 77644c99933SChuck Lever decode_renew_maxsz) 77799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7787c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7797c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7807c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7817c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7827c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 7837c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 78499fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 78599fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 78699fe60d0SBenny Halevy encode_exchange_id_maxsz) 78799fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 78899fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 78999fe60d0SBenny Halevy decode_exchange_id_maxsz) 790fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 791fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 792fc931582SAndy Adamson encode_create_session_maxsz) 793fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 794fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 795fc931582SAndy Adamson decode_create_session_maxsz) 7960f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7970f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7980f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7990f3e66c6SAndy Adamson decode_destroy_session_maxsz) 80066245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 80166245539STrond Myklebust encode_destroy_clientid_maxsz) 80266245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 80366245539STrond Myklebust decode_destroy_clientid_maxsz) 804fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 805fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 806fc01cea9SAndy Adamson encode_sequence_maxsz) 807fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 808fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 809fc01cea9SAndy Adamson decode_sequence_maxsz) 8102050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 8112050f0ccSAndy Adamson encode_sequence_maxsz + \ 8122050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 8132050f0ccSAndy Adamson encode_fsinfo_maxsz) 8142050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 8152050f0ccSAndy Adamson decode_sequence_maxsz + \ 8162050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 8172050f0ccSAndy Adamson decode_fsinfo_maxsz) 81818019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 81918019753SRicardo Labiaga encode_sequence_maxsz + \ 82018019753SRicardo Labiaga encode_reclaim_complete_maxsz) 82118019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 82218019753SRicardo Labiaga decode_sequence_maxsz + \ 82318019753SRicardo Labiaga decode_reclaim_complete_maxsz) 824b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 825b1f69b75SAndy Adamson encode_sequence_maxsz +\ 826b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 827b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 828b1f69b75SAndy Adamson decode_sequence_maxsz + \ 829b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 830b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 831b1f69b75SAndy Adamson encode_sequence_maxsz + \ 832b1f69b75SAndy Adamson encode_putfh_maxsz + \ 833b1f69b75SAndy Adamson encode_layoutget_maxsz) 834b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 835b1f69b75SAndy Adamson decode_sequence_maxsz + \ 836b1f69b75SAndy Adamson decode_putfh_maxsz + \ 837b1f69b75SAndy Adamson decode_layoutget_maxsz) 838863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 839863a3c6cSAndy Adamson encode_sequence_maxsz +\ 840863a3c6cSAndy Adamson encode_putfh_maxsz + \ 841863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 842863a3c6cSAndy Adamson encode_getattr_maxsz) 843863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 844863a3c6cSAndy Adamson decode_sequence_maxsz + \ 845863a3c6cSAndy Adamson decode_putfh_maxsz + \ 846863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 847863a3c6cSAndy Adamson decode_getattr_maxsz) 848cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 849cbe82603SBenny Halevy encode_sequence_maxsz + \ 850cbe82603SBenny Halevy encode_putfh_maxsz + \ 851cbe82603SBenny Halevy encode_layoutreturn_maxsz) 852cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 853cbe82603SBenny Halevy decode_sequence_maxsz + \ 854cbe82603SBenny Halevy decode_putfh_maxsz + \ 855cbe82603SBenny Halevy decode_layoutreturn_maxsz) 856fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 857fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 858fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 859fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 860fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 861fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 862fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 863fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8647d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8657d974794SBryan Schumaker encode_sequence_maxsz + \ 8667d974794SBryan Schumaker encode_test_stateid_maxsz) 8677d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8687d974794SBryan Schumaker decode_sequence_maxsz + \ 8697d974794SBryan Schumaker decode_test_stateid_maxsz) 8709aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8719aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8729aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8739aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8749aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8759aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8762449ea2eSAlexandros Batsakis 8772449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8782449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8792449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8802449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8812449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8822449ea2eSAlexandros Batsakis XDR_UNIT); 8832449ea2eSAlexandros Batsakis 8842449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8852449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8862449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8872449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8882449ea2eSAlexandros Batsakis XDR_UNIT); 889f1c097beSAndy Adamson 890f1c097beSAndy Adamson const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH + 891f1c097beSAndy Adamson compound_decode_hdr_maxsz + 892f1c097beSAndy Adamson decode_sequence_maxsz) * 893f1c097beSAndy Adamson XDR_UNIT); 894f1c097beSAndy Adamson EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead); 89599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8961da177e4SLinus Torvalds 897bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 898bca79478STrond Myklebust [NF4BAD] = 0, 899bca79478STrond Myklebust [NF4REG] = S_IFREG, 900bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 901bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 902bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 903bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 904bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 905bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 906bca79478STrond Myklebust [NF4ATTRDIR] = 0, 907bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 9081da177e4SLinus Torvalds }; 9091da177e4SLinus Torvalds 9101da177e4SLinus Torvalds struct compound_hdr { 9111da177e4SLinus Torvalds int32_t status; 9121da177e4SLinus Torvalds uint32_t nops; 913d017931cSAndy Adamson __be32 * nops_p; 9141da177e4SLinus Torvalds uint32_t taglen; 9151da177e4SLinus Torvalds char * tag; 9160c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 91766cc0429SBenny Halevy u32 minorversion; 9181da177e4SLinus Torvalds }; 9191da177e4SLinus Torvalds 92013c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 92113c65ce9SBenny Halevy { 92213c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 92313c65ce9SBenny Halevy BUG_ON(!p); 92413c65ce9SBenny Halevy return p; 92513c65ce9SBenny Halevy } 9261da177e4SLinus Torvalds 927cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 928cb17e556STrond Myklebust { 929ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_opaque_fixed(xdr, buf, len) < 0); 930cb17e556STrond Myklebust } 931cb17e556STrond Myklebust 9321da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 9331da177e4SLinus Torvalds { 934ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_opaque(xdr, str, len) < 0); 9351da177e4SLinus Torvalds } 9361da177e4SLinus Torvalds 9374ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9384ade9821STrond Myklebust { 939ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_u32(xdr, n) < 0); 9404ade9821STrond Myklebust } 9414ade9821STrond Myklebust 942ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 943ff2eb681STrond Myklebust { 944ab6e9aafSTrond Myklebust WARN_ON_ONCE(xdr_stream_encode_u64(xdr, n) < 0); 945ff2eb681STrond Myklebust } 946ff2eb681STrond Myklebust 9474ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9484ade9821STrond Myklebust const struct nfs_seqid *seqid) 9494ade9821STrond Myklebust { 950a6796419STrond Myklebust if (seqid != NULL) 9514ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 952a6796419STrond Myklebust else 953a6796419STrond Myklebust encode_uint32(xdr, 0); 9544ade9821STrond Myklebust } 9554ade9821STrond Myklebust 9560c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9570c4e8c18SBenny Halevy struct rpc_rqst *req, 9580c4e8c18SBenny Halevy struct compound_hdr *hdr) 9591da177e4SLinus Torvalds { 9608687b63aSAl Viro __be32 *p; 961a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9620c4e8c18SBenny Halevy 9630c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9640c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9650c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9660c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9671da177e4SLinus Torvalds 9687fc38846STrond Myklebust WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); 9696fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9706fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 971e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 972d017931cSAndy Adamson hdr->nops_p = p; 97334558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 974d017931cSAndy Adamson } 975d017931cSAndy Adamson 976ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 977ab19b481STrond Myklebust uint32_t replen, 978ab19b481STrond Myklebust struct compound_hdr *hdr) 979ab19b481STrond Myklebust { 980ab19b481STrond Myklebust encode_uint32(xdr, op); 981ab19b481STrond Myklebust hdr->nops++; 982ab19b481STrond Myklebust hdr->replen += replen; 983ab19b481STrond Myklebust } 984ab19b481STrond Myklebust 985d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 986d017931cSAndy Adamson { 9877fc38846STrond Myklebust WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); 988d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9891da177e4SLinus Torvalds } 9901da177e4SLinus Torvalds 991ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 992ea9d23f5STrond Myklebust { 9932d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 994ea9d23f5STrond Myklebust } 995ea9d23f5STrond Myklebust 9961da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9971da177e4SLinus Torvalds { 998cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 9991da177e4SLinus Torvalds } 10001da177e4SLinus Torvalds 1001aa9c2669SDavid Quigley static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, 1002aa9c2669SDavid Quigley const struct nfs4_label *label, 10035334c5bdSKinglong Mee const struct nfs_server *server, 1004dff25ddbSAndreas Gruenbacher bool excl_check, const umode_t *umask) 10051da177e4SLinus Torvalds { 10061da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 10071da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 10081da177e4SLinus Torvalds int owner_namelen = 0; 10091da177e4SLinus Torvalds int owner_grouplen = 0; 10108687b63aSAl Viro __be32 *p; 1011d7067b2dSTrond Myklebust unsigned i; 1012d7067b2dSTrond Myklebust uint32_t len = 0; 1013d7067b2dSTrond Myklebust uint32_t bmval_len; 1014d7067b2dSTrond Myklebust uint32_t bmval[3] = { 0 }; 10151da177e4SLinus Torvalds 10161da177e4SLinus Torvalds /* 10171da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 10181da177e4SLinus Torvalds */ 1019d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_SIZE) { 1020d7067b2dSTrond Myklebust bmval[0] |= FATTR4_WORD0_SIZE; 10211da177e4SLinus Torvalds len += 8; 1022d7067b2dSTrond Myklebust } 1023dff25ddbSAndreas Gruenbacher if (!(server->attr_bitmask[2] & FATTR4_WORD2_MODE_UMASK)) 1024dff25ddbSAndreas Gruenbacher umask = NULL; 1025d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MODE) { 1026dff25ddbSAndreas Gruenbacher if (umask) { 1027dff25ddbSAndreas Gruenbacher bmval[2] |= FATTR4_WORD2_MODE_UMASK; 1028dff25ddbSAndreas Gruenbacher len += 8; 1029dff25ddbSAndreas Gruenbacher } else { 1030d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_MODE; 10311da177e4SLinus Torvalds len += 4; 1032d7067b2dSTrond Myklebust } 1033dff25ddbSAndreas Gruenbacher } 10341da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 1035e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 10361da177e4SLinus Torvalds if (owner_namelen < 0) { 1037fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 1038e5782076SEric W. Biederman from_kuid(&init_user_ns, iap->ia_uid)); 10391da177e4SLinus Torvalds /* XXX */ 10401da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10411da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10421da177e4SLinus Torvalds /* goto out; */ 10431da177e4SLinus Torvalds } 1044d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER; 10451da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10461da177e4SLinus Torvalds } 10471da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1048e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10491da177e4SLinus Torvalds if (owner_grouplen < 0) { 1050fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 1051e5782076SEric W. Biederman from_kgid(&init_user_ns, iap->ia_gid)); 10521da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10531da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10541da177e4SLinus Torvalds /* goto out; */ 10551da177e4SLinus Torvalds } 1056d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER_GROUP; 10571da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10581da177e4SLinus Torvalds } 1059d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_ATIME_SET) { 1060d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 10611da177e4SLinus Torvalds len += 16; 1062d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_ATIME) { 1063d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 10641da177e4SLinus Torvalds len += 4; 1065d7067b2dSTrond Myklebust } 1066d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MTIME_SET) { 1067d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 10681da177e4SLinus Torvalds len += 16; 1069d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_MTIME) { 1070d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 10711da177e4SLinus Torvalds len += 4; 1072d7067b2dSTrond Myklebust } 10735334c5bdSKinglong Mee 10745334c5bdSKinglong Mee if (excl_check) { 10755334c5bdSKinglong Mee const u32 *excl_bmval = server->exclcreat_bitmask; 10765334c5bdSKinglong Mee bmval[0] &= excl_bmval[0]; 10775334c5bdSKinglong Mee bmval[1] &= excl_bmval[1]; 10785334c5bdSKinglong Mee bmval[2] &= excl_bmval[2]; 10795334c5bdSKinglong Mee 10805334c5bdSKinglong Mee if (!(excl_bmval[2] & FATTR4_WORD2_SECURITY_LABEL)) 10815334c5bdSKinglong Mee label = NULL; 10825334c5bdSKinglong Mee } 10835334c5bdSKinglong Mee 1084b4a2cf76STrond Myklebust if (label) { 1085b4a2cf76STrond Myklebust len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2); 1086d7067b2dSTrond Myklebust bmval[2] |= FATTR4_WORD2_SECURITY_LABEL; 1087d7067b2dSTrond Myklebust } 1088d7067b2dSTrond Myklebust 1089d7067b2dSTrond Myklebust if (bmval[2] != 0) 1090b4a2cf76STrond Myklebust bmval_len = 3; 1091d7067b2dSTrond Myklebust else if (bmval[1] != 0) 1092d7067b2dSTrond Myklebust bmval_len = 2; 1093d7067b2dSTrond Myklebust else 1094d7067b2dSTrond Myklebust bmval_len = 1; 1095b4a2cf76STrond Myklebust 1096d7067b2dSTrond Myklebust p = reserve_space(xdr, 4 + (bmval_len << 2) + 4 + len); 10971da177e4SLinus Torvalds 1098b4a2cf76STrond Myklebust *p++ = cpu_to_be32(bmval_len); 1099d7067b2dSTrond Myklebust for (i = 0; i < bmval_len; i++) 1100d7067b2dSTrond Myklebust *p++ = cpu_to_be32(bmval[i]); 1101d7067b2dSTrond Myklebust *p++ = cpu_to_be32(len); 11021da177e4SLinus Torvalds 1103d7067b2dSTrond Myklebust if (bmval[0] & FATTR4_WORD0_SIZE) 1104b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 1105d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_MODE) 1106e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 1107d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER) 1108811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 1109d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER_GROUP) 1110811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 1111d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) { 11121da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 1113e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1114042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_atime.tv_sec); 1115d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 1116d7067b2dSTrond Myklebust } else 1117e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11181da177e4SLinus Torvalds } 1119d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) { 11201da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 1121e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1122042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_mtime.tv_sec); 1123e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 1124d7067b2dSTrond Myklebust } else 1125e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11261da177e4SLinus Torvalds } 1127d7067b2dSTrond Myklebust if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) { 1128aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->lfs); 1129aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->pi); 1130aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->len); 1131aa9c2669SDavid Quigley p = xdr_encode_opaque_fixed(p, label->label, label->len); 1132aa9c2669SDavid Quigley } 1133dff25ddbSAndreas Gruenbacher if (bmval[2] & FATTR4_WORD2_MODE_UMASK) { 1134dff25ddbSAndreas Gruenbacher *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 1135dff25ddbSAndreas Gruenbacher *p++ = cpu_to_be32(*umask); 1136dff25ddbSAndreas Gruenbacher } 11371da177e4SLinus Torvalds 11381da177e4SLinus Torvalds /* out: */ 11391da177e4SLinus Torvalds } 11401da177e4SLinus Torvalds 1141cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 11421da177e4SLinus Torvalds { 1143475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1144475d4ba0STrond Myklebust encode_uint32(xdr, access); 11451da177e4SLinus Torvalds } 11461da177e4SLinus Torvalds 1147cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11481da177e4SLinus Torvalds { 1149ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11504ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1151566fcec6STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 11521da177e4SLinus Torvalds } 11531da177e4SLinus Torvalds 11540b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11551da177e4SLinus Torvalds { 11568687b63aSAl Viro __be32 *p; 11571da177e4SLinus Torvalds 1158475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1159475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1160b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 116134558513SBenny Halevy *p = cpu_to_be32(args->count); 11621da177e4SLinus Torvalds } 11631da177e4SLinus Torvalds 1164cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11651da177e4SLinus Torvalds { 11668687b63aSAl Viro __be32 *p; 11671da177e4SLinus Torvalds 1168475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1169475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11701da177e4SLinus Torvalds 11711da177e4SLinus Torvalds switch (create->ftype) { 11721da177e4SLinus Torvalds case NF4LNK: 117313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 117434558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 11752fcc213aSChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, 11762fcc213aSChuck Lever create->u.symlink.len); 11772fcc213aSChuck Lever xdr->buf->flags |= XDRBUF_WRITE; 11781da177e4SLinus Torvalds break; 11791da177e4SLinus Torvalds 11801da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 118113c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1182e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 118334558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11841da177e4SLinus Torvalds break; 11851da177e4SLinus Torvalds 11861da177e4SLinus Torvalds default: 11871da177e4SLinus Torvalds break; 11881da177e4SLinus Torvalds } 11891da177e4SLinus Torvalds 1190811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1191dff25ddbSAndreas Gruenbacher encode_attrs(xdr, create->attrs, create->label, create->server, false, 1192dff25ddbSAndreas Gruenbacher &create->umask); 11931da177e4SLinus Torvalds } 11941da177e4SLinus Torvalds 1195cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11961da177e4SLinus Torvalds { 11978687b63aSAl Viro __be32 *p; 11981da177e4SLinus Torvalds 1199475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1200475d4ba0STrond Myklebust p = reserve_space(xdr, 8); 1201e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 120234558513SBenny Halevy *p = cpu_to_be32(bitmap); 12031da177e4SLinus Torvalds } 12041da177e4SLinus Torvalds 1205cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 12061da177e4SLinus Torvalds { 12078687b63aSAl Viro __be32 *p; 12081da177e4SLinus Torvalds 1209475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1210475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1211e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1212e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 121334558513SBenny Halevy *p = cpu_to_be32(bm1); 12141da177e4SLinus Torvalds } 12151da177e4SLinus Torvalds 1216dae100c2SFred Isaman static void 1217dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1218dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1219dae100c2SFred Isaman struct compound_hdr *hdr) 1220dae100c2SFred Isaman { 1221dae100c2SFred Isaman __be32 *p; 1222dae100c2SFred Isaman 1223ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1224dae100c2SFred Isaman if (bm2) { 1225dae100c2SFred Isaman p = reserve_space(xdr, 16); 1226dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1227dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1228dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1229dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1230dae100c2SFred Isaman } else if (bm1) { 1231dae100c2SFred Isaman p = reserve_space(xdr, 12); 1232dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1233dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1234dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1235dae100c2SFred Isaman } else { 1236dae100c2SFred Isaman p = reserve_space(xdr, 8); 1237dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1238dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1239dae100c2SFred Isaman } 1240dae100c2SFred Isaman } 1241dae100c2SFred Isaman 1242cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12431da177e4SLinus Torvalds { 1244a09df2caSDavid Quigley encode_getattr_three(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1245a09df2caSDavid Quigley bitmask[1] & nfs4_fattr_bitmap[1], 1246a09df2caSDavid Quigley bitmask[2] & nfs4_fattr_bitmap[2], 1247a09df2caSDavid Quigley 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 { 125488034c3dSAndy Adamson encode_getattr_three(xdr, 12551549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12561549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12571549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 125888034c3dSAndy Adamson hdr); 125988034c3dSAndy Adamson } 126088034c3dSAndy Adamson 1261cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12621da177e4SLinus Torvalds { 1263dae100c2SFred Isaman encode_getattr_three(xdr, 1264dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1265dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1266dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1267dae100c2SFred Isaman hdr); 12681da177e4SLinus Torvalds } 12691da177e4SLinus Torvalds 1270cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1271830b8e33SManoj Naik { 1272cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1273cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1274830b8e33SManoj Naik } 1275830b8e33SManoj Naik 1276cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12771da177e4SLinus Torvalds { 1278ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12791da177e4SLinus Torvalds } 12801da177e4SLinus Torvalds 1281cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12821da177e4SLinus Torvalds { 1283ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12846fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12851da177e4SLinus Torvalds } 12861da177e4SLinus Torvalds 1287911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1288911d1aafSTrond Myklebust { 1289f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1290911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1291911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1292911d1aafSTrond Myklebust } 1293911d1aafSTrond Myklebust 1294911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1295911d1aafSTrond Myklebust { 1296911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1297911d1aafSTrond Myklebust return ~(uint64_t)0; 1298911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1299911d1aafSTrond Myklebust } 1300911d1aafSTrond Myklebust 1301daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1302daccbdedSTrond Myklebust { 1303daccbdedSTrond Myklebust __be32 *p; 1304daccbdedSTrond Myklebust 1305d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1306daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1307d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1308daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1309d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1310daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1311daccbdedSTrond Myklebust } 1312daccbdedSTrond Myklebust 13131da177e4SLinus Torvalds /* 13141da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 13151da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 13161da177e4SLinus Torvalds */ 1317cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 13181da177e4SLinus Torvalds { 13198687b63aSAl Viro __be32 *p; 13201da177e4SLinus Torvalds 1321475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1322475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1323e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1324e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1325b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1326b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 132734558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1328911d1aafSTrond Myklebust if (args->new_lock_owner){ 13294ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1330425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->open_stateid); 13314ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1332daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13331da177e4SLinus Torvalds } 13341da177e4SLinus Torvalds else { 1335425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->lock_stateid); 13364ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 13371da177e4SLinus Torvalds } 13381da177e4SLinus Torvalds } 13391da177e4SLinus Torvalds 1340cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 13411da177e4SLinus Torvalds { 13428687b63aSAl Viro __be32 *p; 13431da177e4SLinus Torvalds 1344475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1345475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1346e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1347b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1348b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1349daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13501da177e4SLinus Torvalds } 13511da177e4SLinus Torvalds 1352cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13531da177e4SLinus Torvalds { 13548687b63aSAl Viro __be32 *p; 13551da177e4SLinus Torvalds 1356475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1357475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13584ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1359425c1d4eSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1360ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1361b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 136234558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13631da177e4SLinus Torvalds } 13641da177e4SLinus Torvalds 1365d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1366d3c7b7ccSTrond Myklebust { 1367ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1368d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1369d3c7b7ccSTrond Myklebust } 1370d3c7b7ccSTrond Myklebust 1371cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13721da177e4SLinus Torvalds { 1373ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13746fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13751da177e4SLinus Torvalds } 13761da177e4SLinus Torvalds 13776ae37339STrond Myklebust static void encode_share_access(struct xdr_stream *xdr, u32 share_access) 13781da177e4SLinus Torvalds { 13798687b63aSAl Viro __be32 *p; 13801da177e4SLinus Torvalds 138113c65ce9SBenny Halevy p = reserve_space(xdr, 8); 13826ae37339STrond Myklebust *p++ = cpu_to_be32(share_access); 138334558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13841da177e4SLinus Torvalds } 13851da177e4SLinus Torvalds 13861da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13871da177e4SLinus Torvalds { 13888687b63aSAl Viro __be32 *p; 13891da177e4SLinus Torvalds /* 13901da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13911da177e4SLinus Torvalds * owner 4 = 32 13921da177e4SLinus Torvalds */ 13934ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 13946ae37339STrond Myklebust encode_share_access(xdr, arg->share_access); 139595b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1396b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 139795b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 139893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1399d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 140095b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 140195b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 14021da177e4SLinus Torvalds } 14031da177e4SLinus Torvalds 14041da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14051da177e4SLinus Torvalds { 14068687b63aSAl Viro __be32 *p; 14071da177e4SLinus Torvalds 140813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 1409549b19ccSTrond Myklebust switch(arg->createmode) { 1410549b19ccSTrond Myklebust case NFS4_CREATE_UNCHECKED: 141134558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 1412dff25ddbSAndreas Gruenbacher encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false, 1413dff25ddbSAndreas Gruenbacher &arg->umask); 14141da177e4SLinus Torvalds break; 1415549b19ccSTrond Myklebust case NFS4_CREATE_GUARDED: 14164882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 1417dff25ddbSAndreas Gruenbacher encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false, 1418dff25ddbSAndreas Gruenbacher &arg->umask); 1419549b19ccSTrond Myklebust break; 1420549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE: 1421549b19ccSTrond Myklebust *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 1422549b19ccSTrond Myklebust encode_nfs4_verifier(xdr, &arg->u.verifier); 1423549b19ccSTrond Myklebust break; 1424549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE4_1: 14254882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 14264882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 1427dff25ddbSAndreas Gruenbacher encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, true, 1428dff25ddbSAndreas Gruenbacher &arg->umask); 14294882ef72SAlexandros Batsakis } 14304882ef72SAlexandros Batsakis } 14311da177e4SLinus Torvalds 14321da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14331da177e4SLinus Torvalds { 14348687b63aSAl Viro __be32 *p; 14351da177e4SLinus Torvalds 143613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14371da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14381da177e4SLinus Torvalds case 0: 143934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14401da177e4SLinus Torvalds break; 14411da177e4SLinus Torvalds default: 144234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14431da177e4SLinus Torvalds encode_createmode(xdr, arg); 14441da177e4SLinus Torvalds } 14451da177e4SLinus Torvalds } 14461da177e4SLinus Torvalds 1447bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14481da177e4SLinus Torvalds { 14498687b63aSAl Viro __be32 *p; 14501da177e4SLinus Torvalds 145113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14521da177e4SLinus Torvalds switch (delegation_type) { 14531da177e4SLinus Torvalds case 0: 145434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14551da177e4SLinus Torvalds break; 14561da177e4SLinus Torvalds case FMODE_READ: 145734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14581da177e4SLinus Torvalds break; 14591da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 146034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14611da177e4SLinus Torvalds break; 14621da177e4SLinus Torvalds default: 14631da177e4SLinus Torvalds BUG(); 14641da177e4SLinus Torvalds } 14651da177e4SLinus Torvalds } 14661da177e4SLinus Torvalds 14671da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14681da177e4SLinus Torvalds { 14698687b63aSAl Viro __be32 *p; 14701da177e4SLinus Torvalds 147113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14731da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14741da177e4SLinus Torvalds } 14751da177e4SLinus Torvalds 1476bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14771da177e4SLinus Torvalds { 14788687b63aSAl Viro __be32 *p; 14791da177e4SLinus Torvalds 148013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 148134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14821da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14831da177e4SLinus Torvalds } 14841da177e4SLinus Torvalds 14851da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14861da177e4SLinus Torvalds { 14878687b63aSAl Viro __be32 *p; 14881da177e4SLinus Torvalds 1489ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1490ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1491ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14921da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14931da177e4SLinus Torvalds } 14941da177e4SLinus Torvalds 1495d9fc6619STrond Myklebust static inline void encode_claim_fh(struct xdr_stream *xdr) 1496d9fc6619STrond Myklebust { 1497d9fc6619STrond Myklebust __be32 *p; 1498d9fc6619STrond Myklebust 1499d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1500d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); 1501d9fc6619STrond Myklebust } 1502d9fc6619STrond Myklebust 1503d9fc6619STrond Myklebust static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1504d9fc6619STrond Myklebust { 1505d9fc6619STrond Myklebust __be32 *p; 1506d9fc6619STrond Myklebust 1507d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1508d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); 1509d9fc6619STrond Myklebust encode_nfs4_stateid(xdr, stateid); 1510d9fc6619STrond Myklebust } 1511d9fc6619STrond Myklebust 1512cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 15131da177e4SLinus Torvalds { 1514ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 15151da177e4SLinus Torvalds encode_openhdr(xdr, arg); 15161da177e4SLinus Torvalds encode_opentype(xdr, arg); 15171da177e4SLinus Torvalds switch (arg->claim) { 15181da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 15191da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 15201da177e4SLinus Torvalds break; 15211da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 15221da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 15231da177e4SLinus Torvalds break; 15241da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 15251da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 15261da177e4SLinus Torvalds break; 1527d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_FH: 1528d9fc6619STrond Myklebust encode_claim_fh(xdr); 1529d9fc6619STrond Myklebust break; 1530d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_DELEG_CUR_FH: 1531d9fc6619STrond Myklebust encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); 1532d9fc6619STrond Myklebust break; 15331da177e4SLinus Torvalds default: 15341da177e4SLinus Torvalds BUG(); 15351da177e4SLinus Torvalds } 15361da177e4SLinus Torvalds } 15371da177e4SLinus Torvalds 1538cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 15391da177e4SLinus Torvalds { 1540ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1541ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15424ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15431da177e4SLinus Torvalds } 15441da177e4SLinus Torvalds 1545cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 15461da177e4SLinus Torvalds { 1547ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1548566fcec6STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 15494ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15506ae37339STrond Myklebust encode_share_access(xdr, arg->share_access); 15511da177e4SLinus Torvalds } 15521da177e4SLinus Torvalds 1553cf8cdbe5SAndy Adamson static void 1554d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15551da177e4SLinus Torvalds { 1556ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15576fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15581da177e4SLinus Torvalds } 15591da177e4SLinus Torvalds 1560cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15611da177e4SLinus Torvalds { 1562ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15631da177e4SLinus Torvalds } 15641da177e4SLinus Torvalds 15653c6b899cSAnna Schumaker static void encode_read(struct xdr_stream *xdr, const struct nfs_pgio_args *args, 15663c6b899cSAnna Schumaker struct compound_hdr *hdr) 15671da177e4SLinus Torvalds { 15688687b63aSAl Viro __be32 *p; 15691da177e4SLinus Torvalds 1570ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 15719b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 15721da177e4SLinus Torvalds 157313c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1574b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 157534558513SBenny Halevy *p = cpu_to_be32(args->count); 15761da177e4SLinus Torvalds } 15771da177e4SLinus Torvalds 1578cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15791da177e4SLinus Torvalds { 1580aa9c2669SDavid Quigley uint32_t attrs[3] = { 158128331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 158228331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 158328331a46STrond Myklebust }; 15846f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1585cd93710eSChuck Lever __be32 *p, verf[2]; 1586d204c5d2STrond Myklebust uint32_t attrlen = 0; 1587d204c5d2STrond Myklebust unsigned int i; 15881da177e4SLinus Torvalds 158982f2e547SBryan Schumaker if (readdir->plus) { 159082f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 159128331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 159282f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 159382f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 159482f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 159582f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 1596d204c5d2STrond Myklebust attrs[2] |= FATTR4_WORD2_SECURITY_LABEL; 15976f7a35bdSTrond Myklebust dircount >>= 1; 159882f2e547SBryan Schumaker } 159928331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 160028331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 160128331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 1602d204c5d2STrond Myklebust for (i = 0; i < ARRAY_SIZE(attrs); i++) { 1603d204c5d2STrond Myklebust attrs[i] &= readdir->bitmask[i]; 1604d204c5d2STrond Myklebust if (attrs[i] != 0) 1605d204c5d2STrond Myklebust attrlen = i+1; 1606d204c5d2STrond Myklebust } 16076f7a35bdSTrond Myklebust 1608475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1609ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1610cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1611d204c5d2STrond Myklebust p = reserve_space(xdr, 12 + (attrlen << 2)); 16126f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 16136f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 1614d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrlen); 1615d204c5d2STrond Myklebust for (i = 0; i < attrlen; i++) 1616d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrs[i]); 1617cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 1618aa9c2669SDavid Quigley 1619aa9c2669SDavid Quigley dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n", 162044109241SFred Isaman __func__, 1621eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1622cd93710eSChuck Lever verf[0], verf[1], 1623eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1624aa9c2669SDavid Quigley attrs[1] & readdir->bitmask[1], 1625aa9c2669SDavid Quigley attrs[2] & readdir->bitmask[2]); 16261da177e4SLinus Torvalds } 16271da177e4SLinus Torvalds 1628cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 16291da177e4SLinus Torvalds { 1630ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 16311da177e4SLinus Torvalds } 16321da177e4SLinus Torvalds 1633cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16341da177e4SLinus Torvalds { 1635ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 16366fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16371da177e4SLinus Torvalds } 16381da177e4SLinus Torvalds 1639cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16401da177e4SLinus Torvalds { 1641ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1642811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1643811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 16441da177e4SLinus Torvalds } 16451da177e4SLinus Torvalds 1646bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1647bb4dae5eSChuck Lever struct compound_hdr *hdr) 16481da177e4SLinus Torvalds { 1649475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1650ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16511da177e4SLinus Torvalds } 16521da177e4SLinus Torvalds 1653cf8cdbe5SAndy Adamson static void 1654d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 165556ae19f3STrond Myklebust { 1656ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 165756ae19f3STrond Myklebust } 165856ae19f3STrond Myklebust 16599f06c719SChuck Lever static void 1660d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 166123ec6965SJ. Bruce Fields { 16628687b63aSAl Viro __be32 *p; 166323ec6965SJ. Bruce Fields 1664ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1665ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 166613c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1667e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 166834558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 166913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 167034558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 16718fbcf237SAndreas Gruenbacher xdr_write_pages(xdr, arg->acl_pages, 0, arg->acl_len); 167223ec6965SJ. Bruce Fields } 167323ec6965SJ. Bruce Fields 1674cf8cdbe5SAndy Adamson static void 1675d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16761da177e4SLinus Torvalds { 1677ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16781da177e4SLinus Torvalds } 16791da177e4SLinus Torvalds 1680cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16811da177e4SLinus Torvalds { 1682ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1683ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 1684dff25ddbSAndreas Gruenbacher encode_attrs(xdr, arg->iap, arg->label, server, false, NULL); 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, 174371a097c6STrond Myklebust 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 17562031cd1aSWeston Andros Adamson static void encode_op_map(struct xdr_stream *xdr, 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, 176599fe60d0SBenny Halevy 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); 1773cd93710eSChuck Lever 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, 1817fc931582SAndy Adamson 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 */ 18308e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 18318e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 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, 18700f3e66c6SAndy Adamson 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, 188618019753SRicardo Labiaga 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, 19825f919c9fSChristoph Hellwig 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, 20527d974794SBryan Schumaker 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, 20619aeda35fSBryan Schumaker 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, 20949f06c719SChuck Lever const struct nfs4_accessargs *args) 20951da177e4SLinus Torvalds { 20961da177e4SLinus Torvalds struct compound_hdr hdr = { 209766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20981da177e4SLinus Torvalds }; 20991da177e4SLinus Torvalds 21009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21039f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 21049f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2105d017931cSAndy Adamson encode_nops(&hdr); 21061da177e4SLinus Torvalds } 21071da177e4SLinus Torvalds 21081da177e4SLinus Torvalds /* 21091da177e4SLinus Torvalds * Encode LOOKUP request 21101da177e4SLinus Torvalds */ 21119f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 21129f06c719SChuck Lever const struct nfs4_lookup_arg *args) 21131da177e4SLinus Torvalds { 21141da177e4SLinus Torvalds struct compound_hdr hdr = { 211566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21161da177e4SLinus Torvalds }; 21171da177e4SLinus Torvalds 21189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21209f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21219f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21229f06c719SChuck Lever encode_getfh(xdr, &hdr); 21239f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2124d017931cSAndy Adamson encode_nops(&hdr); 21251da177e4SLinus Torvalds } 21261da177e4SLinus Torvalds 21271da177e4SLinus Torvalds /* 21281da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21291da177e4SLinus Torvalds */ 21309f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21319f06c719SChuck Lever struct xdr_stream *xdr, 21329f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 21331da177e4SLinus Torvalds { 21341da177e4SLinus Torvalds struct compound_hdr hdr = { 213566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21361da177e4SLinus Torvalds }; 21371da177e4SLinus Torvalds 21389f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21399f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21409f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21419f06c719SChuck Lever encode_getfh(xdr, &hdr); 21429f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2143d017931cSAndy Adamson encode_nops(&hdr); 21441da177e4SLinus Torvalds } 21451da177e4SLinus Torvalds 21461da177e4SLinus Torvalds /* 21471da177e4SLinus Torvalds * Encode REMOVE request 21481da177e4SLinus Torvalds */ 21499f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 21509f06c719SChuck Lever const struct nfs_removeargs *args) 21511da177e4SLinus Torvalds { 21521da177e4SLinus Torvalds struct compound_hdr hdr = { 215366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21541da177e4SLinus Torvalds }; 21551da177e4SLinus Torvalds 21569f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21579f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21589f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21599f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2160d017931cSAndy Adamson encode_nops(&hdr); 21611da177e4SLinus Torvalds } 21621da177e4SLinus Torvalds 21631da177e4SLinus Torvalds /* 21641da177e4SLinus Torvalds * Encode RENAME request 21651da177e4SLinus Torvalds */ 21669f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21679f06c719SChuck Lever const struct nfs_renameargs *args) 21681da177e4SLinus Torvalds { 21691da177e4SLinus Torvalds struct compound_hdr hdr = { 217066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21711da177e4SLinus Torvalds }; 21721da177e4SLinus Torvalds 21739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21749f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21759f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21769f06c719SChuck Lever encode_savefh(xdr, &hdr); 21779f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21789f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2179d017931cSAndy Adamson encode_nops(&hdr); 21801da177e4SLinus Torvalds } 21811da177e4SLinus Torvalds 21821da177e4SLinus Torvalds /* 21831da177e4SLinus Torvalds * Encode LINK request 21841da177e4SLinus Torvalds */ 21859f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21869f06c719SChuck Lever const struct nfs4_link_arg *args) 21871da177e4SLinus Torvalds { 21881da177e4SLinus Torvalds struct compound_hdr hdr = { 218966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21901da177e4SLinus Torvalds }; 21911da177e4SLinus Torvalds 21929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21939f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21949f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21959f06c719SChuck Lever encode_savefh(xdr, &hdr); 21969f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21979f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21989f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21999f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2200d017931cSAndy Adamson encode_nops(&hdr); 22011da177e4SLinus Torvalds } 22021da177e4SLinus Torvalds 22031da177e4SLinus Torvalds /* 22041da177e4SLinus Torvalds * Encode CREATE request 22051da177e4SLinus Torvalds */ 22069f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 22079f06c719SChuck Lever const struct nfs4_create_arg *args) 22081da177e4SLinus Torvalds { 22091da177e4SLinus Torvalds struct compound_hdr hdr = { 221066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22111da177e4SLinus Torvalds }; 22121da177e4SLinus Torvalds 22139f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22149f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22159f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22169f06c719SChuck Lever encode_create(xdr, args, &hdr); 22179f06c719SChuck Lever encode_getfh(xdr, &hdr); 22189f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2219d017931cSAndy Adamson encode_nops(&hdr); 22201da177e4SLinus Torvalds } 22211da177e4SLinus Torvalds 22221da177e4SLinus Torvalds /* 22231da177e4SLinus Torvalds * Encode SYMLINK request 22241da177e4SLinus Torvalds */ 22259f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22269f06c719SChuck Lever const struct nfs4_create_arg *args) 22271da177e4SLinus Torvalds { 22289f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22291da177e4SLinus Torvalds } 22301da177e4SLinus Torvalds 22311da177e4SLinus Torvalds /* 22321da177e4SLinus Torvalds * Encode GETATTR request 22331da177e4SLinus Torvalds */ 22349f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22359f06c719SChuck Lever const struct nfs4_getattr_arg *args) 22361da177e4SLinus Torvalds { 22371da177e4SLinus Torvalds struct compound_hdr hdr = { 223866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22391da177e4SLinus Torvalds }; 22401da177e4SLinus Torvalds 22419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22449f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2245d017931cSAndy Adamson encode_nops(&hdr); 22461da177e4SLinus Torvalds } 22471da177e4SLinus Torvalds 22481da177e4SLinus Torvalds /* 22491da177e4SLinus Torvalds * Encode a CLOSE request 22501da177e4SLinus Torvalds */ 22519f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 22529f06c719SChuck Lever struct nfs_closeargs *args) 22531da177e4SLinus Torvalds { 22541da177e4SLinus Torvalds struct compound_hdr hdr = { 225566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22561da177e4SLinus Torvalds }; 22571da177e4SLinus Torvalds 22589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22609f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2261cf805165STrond Myklebust if (args->lr_args) 2262cf805165STrond Myklebust encode_layoutreturn(xdr, args->lr_args, &hdr); 22633ecefc92STrond Myklebust if (args->bitmask != NULL) 22649f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2265d8d84983STrond Myklebust encode_close(xdr, args, &hdr); 2266d017931cSAndy Adamson encode_nops(&hdr); 22671da177e4SLinus Torvalds } 22681da177e4SLinus Torvalds 22691da177e4SLinus Torvalds /* 22701da177e4SLinus Torvalds * Encode an OPEN request 22711da177e4SLinus Torvalds */ 22729f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22739f06c719SChuck Lever struct nfs_openargs *args) 22741da177e4SLinus Torvalds { 22751da177e4SLinus Torvalds struct compound_hdr hdr = { 227666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22771da177e4SLinus Torvalds }; 22781da177e4SLinus Torvalds 22799f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22809f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22819f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22829f06c719SChuck Lever encode_open(xdr, args, &hdr); 22839f06c719SChuck Lever encode_getfh(xdr, &hdr); 2284ae2bb032SWeston Andros Adamson if (args->access) 22856168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22861549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2287d017931cSAndy Adamson encode_nops(&hdr); 22881da177e4SLinus Torvalds } 22891da177e4SLinus Torvalds 22901da177e4SLinus Torvalds /* 22911da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22921da177e4SLinus Torvalds */ 22939f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22949f06c719SChuck Lever struct xdr_stream *xdr, 22959f06c719SChuck Lever struct nfs_open_confirmargs *args) 22961da177e4SLinus Torvalds { 22971da177e4SLinus Torvalds struct compound_hdr hdr = { 2298d017931cSAndy Adamson .nops = 0, 22991da177e4SLinus Torvalds }; 23001da177e4SLinus Torvalds 23019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23039f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2304d017931cSAndy Adamson encode_nops(&hdr); 23051da177e4SLinus Torvalds } 23061da177e4SLinus Torvalds 23071da177e4SLinus Torvalds /* 23081da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 23091da177e4SLinus Torvalds */ 23109f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 23119f06c719SChuck Lever struct xdr_stream *xdr, 23129f06c719SChuck Lever struct nfs_openargs *args) 23131da177e4SLinus Torvalds { 23141da177e4SLinus Torvalds struct compound_hdr hdr = { 231566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23161da177e4SLinus Torvalds }; 23171da177e4SLinus Torvalds 23189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23209f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23219f06c719SChuck Lever encode_open(xdr, args, &hdr); 2322ae2bb032SWeston Andros Adamson if (args->access) 23236168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2324e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2325d017931cSAndy Adamson encode_nops(&hdr); 23261da177e4SLinus Torvalds } 23271da177e4SLinus Torvalds 23281da177e4SLinus Torvalds /* 23291da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23301da177e4SLinus Torvalds */ 23319f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23329f06c719SChuck Lever struct xdr_stream *xdr, 23339f06c719SChuck Lever struct nfs_closeargs *args) 23341da177e4SLinus Torvalds { 23351da177e4SLinus Torvalds struct compound_hdr hdr = { 233666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23371da177e4SLinus Torvalds }; 23381da177e4SLinus Torvalds 23399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23409f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23419f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2342b6808145STrond Myklebust if (args->lr_args) 2343b6808145STrond Myklebust encode_layoutreturn(xdr, args->lr_args, &hdr); 23449f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 2345d017931cSAndy Adamson encode_nops(&hdr); 23461da177e4SLinus Torvalds } 23471da177e4SLinus Torvalds 23481da177e4SLinus Torvalds /* 23491da177e4SLinus Torvalds * Encode a LOCK request 23501da177e4SLinus Torvalds */ 23519f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 23529f06c719SChuck Lever struct nfs_lock_args *args) 23531da177e4SLinus Torvalds { 23541da177e4SLinus Torvalds struct compound_hdr hdr = { 235566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23561da177e4SLinus Torvalds }; 23571da177e4SLinus Torvalds 23589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23609f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23619f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2362d017931cSAndy Adamson encode_nops(&hdr); 23631da177e4SLinus Torvalds } 23641da177e4SLinus Torvalds 23651da177e4SLinus Torvalds /* 23661da177e4SLinus Torvalds * Encode a LOCKT request 23671da177e4SLinus Torvalds */ 23689f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23699f06c719SChuck Lever struct nfs_lockt_args *args) 23701da177e4SLinus Torvalds { 23711da177e4SLinus Torvalds struct compound_hdr hdr = { 237266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23731da177e4SLinus Torvalds }; 23741da177e4SLinus Torvalds 23759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23769f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23779f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23789f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2379d017931cSAndy Adamson encode_nops(&hdr); 23801da177e4SLinus Torvalds } 23811da177e4SLinus Torvalds 23821da177e4SLinus Torvalds /* 23831da177e4SLinus Torvalds * Encode a LOCKU request 23841da177e4SLinus Torvalds */ 23859f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23869f06c719SChuck Lever struct nfs_locku_args *args) 23871da177e4SLinus Torvalds { 23881da177e4SLinus Torvalds struct compound_hdr hdr = { 238966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23901da177e4SLinus Torvalds }; 23911da177e4SLinus Torvalds 23929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23939f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23949f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23959f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2396d017931cSAndy Adamson encode_nops(&hdr); 23971da177e4SLinus Torvalds } 23981da177e4SLinus Torvalds 23999f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 24009f06c719SChuck Lever struct xdr_stream *xdr, 24019f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2402d3c7b7ccSTrond Myklebust { 2403d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2404d3c7b7ccSTrond Myklebust .minorversion = 0, 2405d3c7b7ccSTrond Myklebust }; 2406d3c7b7ccSTrond Myklebust 24079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24089f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2409d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2410d3c7b7ccSTrond Myklebust } 2411d3c7b7ccSTrond Myklebust 24121da177e4SLinus Torvalds /* 24131da177e4SLinus Torvalds * Encode a READLINK request 24141da177e4SLinus Torvalds */ 24159f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 24169f06c719SChuck Lever const struct nfs4_readlink *args) 24171da177e4SLinus Torvalds { 24181da177e4SLinus Torvalds struct compound_hdr hdr = { 241966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24201da177e4SLinus Torvalds }; 24211da177e4SLinus Torvalds 24229f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24239f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24249f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24259f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2426e3a535e1STrond Myklebust 242728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2428e3a535e1STrond Myklebust args->pgbase, args->pglen); 2429d017931cSAndy Adamson encode_nops(&hdr); 24301da177e4SLinus Torvalds } 24311da177e4SLinus Torvalds 24321da177e4SLinus Torvalds /* 24331da177e4SLinus Torvalds * Encode a READDIR request 24341da177e4SLinus Torvalds */ 24359f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 24369f06c719SChuck Lever const struct nfs4_readdir_arg *args) 24371da177e4SLinus Torvalds { 24381da177e4SLinus Torvalds struct compound_hdr hdr = { 243966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24401da177e4SLinus Torvalds }; 24411da177e4SLinus Torvalds 24429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24459f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2446d6ac02dfSTrond Myklebust 244728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2448d6ac02dfSTrond Myklebust args->pgbase, args->count); 2449d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 245028f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2451d6ac02dfSTrond Myklebust args->pgbase, args->count); 2452d017931cSAndy Adamson encode_nops(&hdr); 24531da177e4SLinus Torvalds } 24541da177e4SLinus Torvalds 24551da177e4SLinus Torvalds /* 24561da177e4SLinus Torvalds * Encode a READ request 24571da177e4SLinus Torvalds */ 24589f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 24593c6b899cSAnna Schumaker struct nfs_pgio_args *args) 24601da177e4SLinus Torvalds { 24611da177e4SLinus Torvalds struct compound_hdr hdr = { 246266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24631da177e4SLinus Torvalds }; 24641da177e4SLinus Torvalds 24659f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24669f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24679f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24689f06c719SChuck Lever encode_read(xdr, args, &hdr); 24691da177e4SLinus Torvalds 247028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24711da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24724f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2473d017931cSAndy Adamson encode_nops(&hdr); 24741da177e4SLinus Torvalds } 24751da177e4SLinus Torvalds 24761da177e4SLinus Torvalds /* 24771da177e4SLinus Torvalds * Encode an SETATTR request 24781da177e4SLinus Torvalds */ 24799f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24809f06c719SChuck Lever struct nfs_setattrargs *args) 24811da177e4SLinus Torvalds { 24821da177e4SLinus Torvalds struct compound_hdr hdr = { 248366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24841da177e4SLinus Torvalds }; 24851da177e4SLinus Torvalds 24869f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24879f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24889f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24899f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24909f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2491d017931cSAndy Adamson encode_nops(&hdr); 24921da177e4SLinus Torvalds } 24931da177e4SLinus Torvalds 24941da177e4SLinus Torvalds /* 2495029d105eSJ. Bruce Fields * Encode a GETACL request 2496029d105eSJ. Bruce Fields */ 24979f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2498029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2499029d105eSJ. Bruce Fields { 2500029d105eSJ. Bruce Fields struct compound_hdr hdr = { 250166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2502029d105eSJ. Bruce Fields }; 250328f56694SBenny Halevy uint32_t replen; 2504029d105eSJ. Bruce Fields 25059f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25069f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25079f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25086682c14bSJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz; 25099f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2510cf8cdbe5SAndy Adamson 251128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 25128fbcf237SAndreas Gruenbacher args->acl_pages, 0, args->acl_len); 2513bf118a34SAndy Adamson 2514d017931cSAndy Adamson encode_nops(&hdr); 2515029d105eSJ. Bruce Fields } 2516029d105eSJ. Bruce Fields 2517029d105eSJ. Bruce Fields /* 25181da177e4SLinus Torvalds * Encode a WRITE request 25191da177e4SLinus Torvalds */ 25209f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 25213c6b899cSAnna Schumaker struct nfs_pgio_args *args) 25221da177e4SLinus Torvalds { 25231da177e4SLinus Torvalds struct compound_hdr hdr = { 252466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25251da177e4SLinus Torvalds }; 25261da177e4SLinus Torvalds 25279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25289f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25299f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25309f06c719SChuck Lever encode_write(xdr, args, &hdr); 25314f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25327ffd1064SFred Isaman if (args->bitmask) 25339f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2534d017931cSAndy Adamson encode_nops(&hdr); 25351da177e4SLinus Torvalds } 25361da177e4SLinus Torvalds 25371da177e4SLinus Torvalds /* 25381da177e4SLinus Torvalds * a COMMIT request 25391da177e4SLinus Torvalds */ 25409f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 25410b7c0153SFred Isaman struct nfs_commitargs *args) 25421da177e4SLinus Torvalds { 25431da177e4SLinus Torvalds struct compound_hdr hdr = { 254466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25451da177e4SLinus Torvalds }; 25461da177e4SLinus Torvalds 25479f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25489f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25499f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25509f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2551d017931cSAndy Adamson encode_nops(&hdr); 25521da177e4SLinus Torvalds } 25531da177e4SLinus Torvalds 25541da177e4SLinus Torvalds /* 25551da177e4SLinus Torvalds * FSINFO request 25561da177e4SLinus Torvalds */ 25579f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 25589f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 25591da177e4SLinus Torvalds { 25601da177e4SLinus Torvalds struct compound_hdr hdr = { 256166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25621da177e4SLinus Torvalds }; 25631da177e4SLinus Torvalds 25649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25659f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25669f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25679f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2568d017931cSAndy Adamson encode_nops(&hdr); 25691da177e4SLinus Torvalds } 25701da177e4SLinus Torvalds 25711da177e4SLinus Torvalds /* 25721da177e4SLinus Torvalds * a PATHCONF request 25731da177e4SLinus Torvalds */ 25749f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25759f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25761da177e4SLinus Torvalds { 25771da177e4SLinus Torvalds struct compound_hdr hdr = { 257866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25791da177e4SLinus Torvalds }; 25801da177e4SLinus Torvalds 25819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25829f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25839f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25849f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2585d017931cSAndy Adamson &hdr); 2586d017931cSAndy Adamson encode_nops(&hdr); 25871da177e4SLinus Torvalds } 25881da177e4SLinus Torvalds 25891da177e4SLinus Torvalds /* 25901da177e4SLinus Torvalds * a STATFS request 25911da177e4SLinus Torvalds */ 25929f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25939f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25941da177e4SLinus Torvalds { 25951da177e4SLinus Torvalds struct compound_hdr hdr = { 259666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25971da177e4SLinus Torvalds }; 25981da177e4SLinus Torvalds 25999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26009f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26019f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26029f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2603d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2604d017931cSAndy Adamson encode_nops(&hdr); 26051da177e4SLinus Torvalds } 26061da177e4SLinus Torvalds 26071da177e4SLinus Torvalds /* 26081da177e4SLinus Torvalds * GETATTR_BITMAP request 26091da177e4SLinus Torvalds */ 26109f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 26119f06c719SChuck Lever struct xdr_stream *xdr, 261243652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 26131da177e4SLinus Torvalds { 26148c61282fSKinglong Mee const u32 *bitmask = args->bitmask; 26151da177e4SLinus Torvalds struct compound_hdr hdr = { 261666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26171da177e4SLinus Torvalds }; 26181da177e4SLinus Torvalds 26199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26209f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26219f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26228c61282fSKinglong Mee encode_getattr_three(xdr, bitmask[0], bitmask[1], bitmask[2], &hdr); 2623d017931cSAndy Adamson encode_nops(&hdr); 26241da177e4SLinus Torvalds } 26251da177e4SLinus Torvalds 26261da177e4SLinus Torvalds /* 26271da177e4SLinus Torvalds * a RENEW request 26281da177e4SLinus Torvalds */ 26299f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 26309f06c719SChuck Lever struct nfs_client *clp) 26311da177e4SLinus Torvalds { 26321da177e4SLinus Torvalds struct compound_hdr hdr = { 2633d017931cSAndy Adamson .nops = 0, 26341da177e4SLinus Torvalds }; 26351da177e4SLinus Torvalds 26369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 2637bb4dae5eSChuck Lever encode_renew(xdr, clp->cl_clientid, &hdr); 2638d017931cSAndy Adamson encode_nops(&hdr); 26391da177e4SLinus Torvalds } 26401da177e4SLinus Torvalds 26411da177e4SLinus Torvalds /* 26421da177e4SLinus Torvalds * a SETCLIENTID request 26431da177e4SLinus Torvalds */ 26449f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 26459f06c719SChuck Lever struct xdr_stream *xdr, 26469f06c719SChuck Lever struct nfs4_setclientid *sc) 26471da177e4SLinus Torvalds { 26481da177e4SLinus Torvalds struct compound_hdr hdr = { 2649d017931cSAndy Adamson .nops = 0, 26501da177e4SLinus Torvalds }; 26511da177e4SLinus Torvalds 26529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26539f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2654d017931cSAndy Adamson encode_nops(&hdr); 26551da177e4SLinus Torvalds } 26561da177e4SLinus Torvalds 26571da177e4SLinus Torvalds /* 26581da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 26591da177e4SLinus Torvalds */ 26609f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26619f06c719SChuck Lever struct xdr_stream *xdr, 26629f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26631da177e4SLinus Torvalds { 26641da177e4SLinus Torvalds struct compound_hdr hdr = { 2665d017931cSAndy Adamson .nops = 0, 26661da177e4SLinus Torvalds }; 26671da177e4SLinus Torvalds 26689f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26699f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 2670d017931cSAndy Adamson encode_nops(&hdr); 26711da177e4SLinus Torvalds } 26721da177e4SLinus Torvalds 26731da177e4SLinus Torvalds /* 26741da177e4SLinus Torvalds * DELEGRETURN request 26751da177e4SLinus Torvalds */ 26769f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26779f06c719SChuck Lever struct xdr_stream *xdr, 26789f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26791da177e4SLinus Torvalds { 26801da177e4SLinus Torvalds struct compound_hdr hdr = { 268166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26821da177e4SLinus Torvalds }; 26831da177e4SLinus Torvalds 26849f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26859f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26869f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 2687586f1c39STrond Myklebust if (args->lr_args) 2688586f1c39STrond Myklebust encode_layoutreturn(xdr, args->lr_args, &hdr); 26898ac2b422STrond Myklebust if (args->bitmask) 26909f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2691e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2692d017931cSAndy Adamson encode_nops(&hdr); 26931da177e4SLinus Torvalds } 26941da177e4SLinus Torvalds 26951da177e4SLinus Torvalds /* 2696683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2697683b57b4STrond Myklebust */ 26989f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26999f06c719SChuck Lever struct xdr_stream *xdr, 27009f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2701683b57b4STrond Myklebust { 2702683b57b4STrond Myklebust struct compound_hdr hdr = { 270366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2704683b57b4STrond Myklebust }; 270528f56694SBenny Halevy uint32_t replen; 2706683b57b4STrond Myklebust 27079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27089f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 2709b03d735bSChuck Lever if (args->migration) { 2710b03d735bSChuck Lever encode_putfh(xdr, args->fh, &hdr); 2711b03d735bSChuck Lever replen = hdr.replen; 2712b03d735bSChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2713b03d735bSChuck Lever if (args->renew) 2714b03d735bSChuck Lever encode_renew(xdr, args->clientid, &hdr); 2715b03d735bSChuck Lever } else { 27169f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 27179f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 2718b03d735bSChuck Lever replen = hdr.replen; 27199f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2720b03d735bSChuck Lever } 2721cf8cdbe5SAndy Adamson 2722b03d735bSChuck Lever /* Set up reply kvec to capture returned fs_locations array. */ 272328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2724683b57b4STrond Myklebust 0, PAGE_SIZE); 2725d017931cSAndy Adamson encode_nops(&hdr); 2726683b57b4STrond Myklebust } 2727683b57b4STrond Myklebust 27285a5ea0d4SBryan Schumaker /* 27295a5ea0d4SBryan Schumaker * Encode SECINFO request 27305a5ea0d4SBryan Schumaker */ 27315a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27325a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 27335a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 27345a5ea0d4SBryan Schumaker { 27355a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27365a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27375a5ea0d4SBryan Schumaker }; 27385a5ea0d4SBryan Schumaker 27395a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 27405a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 27415a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 27425a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 27435a5ea0d4SBryan Schumaker encode_nops(&hdr); 27445a5ea0d4SBryan Schumaker } 27455a5ea0d4SBryan Schumaker 274644c99933SChuck Lever /* 274744c99933SChuck Lever * Encode FSID_PRESENT request 274844c99933SChuck Lever */ 274944c99933SChuck Lever static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req, 275044c99933SChuck Lever struct xdr_stream *xdr, 275144c99933SChuck Lever struct nfs4_fsid_present_arg *args) 275244c99933SChuck Lever { 275344c99933SChuck Lever struct compound_hdr hdr = { 275444c99933SChuck Lever .minorversion = nfs4_xdr_minorversion(&args->seq_args), 275544c99933SChuck Lever }; 275644c99933SChuck Lever 275744c99933SChuck Lever encode_compound_hdr(xdr, req, &hdr); 275844c99933SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 275944c99933SChuck Lever encode_putfh(xdr, args->fh, &hdr); 276044c99933SChuck Lever encode_getfh(xdr, &hdr); 276144c99933SChuck Lever if (args->renew) 276244c99933SChuck Lever encode_renew(xdr, args->clientid, &hdr); 276344c99933SChuck Lever encode_nops(&hdr); 276444c99933SChuck Lever } 276544c99933SChuck Lever 276699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 276799fe60d0SBenny Halevy /* 27687c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 27697c44f1aeSWeston Andros Adamson */ 27707c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 27717c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 277271a097c6STrond Myklebust struct nfs41_bind_conn_to_session_args *args) 27737c44f1aeSWeston Andros Adamson { 27747c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 277571a097c6STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 27767c44f1aeSWeston Andros Adamson }; 27777c44f1aeSWeston Andros Adamson 27787c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 277971a097c6STrond Myklebust encode_bind_conn_to_session(xdr, args, &hdr); 27807c44f1aeSWeston Andros Adamson encode_nops(&hdr); 27817c44f1aeSWeston Andros Adamson } 27827c44f1aeSWeston Andros Adamson 27837c44f1aeSWeston Andros Adamson /* 278499fe60d0SBenny Halevy * EXCHANGE_ID request 278599fe60d0SBenny Halevy */ 27869f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27879f06c719SChuck Lever struct xdr_stream *xdr, 278899fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 278999fe60d0SBenny Halevy { 279099fe60d0SBenny Halevy struct compound_hdr hdr = { 2791a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 279299fe60d0SBenny Halevy }; 279399fe60d0SBenny Halevy 27949f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27959f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 279699fe60d0SBenny Halevy encode_nops(&hdr); 279799fe60d0SBenny Halevy } 27982050f0ccSAndy Adamson 27992050f0ccSAndy Adamson /* 2800fc931582SAndy Adamson * a CREATE_SESSION request 2801fc931582SAndy Adamson */ 28029f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 28039f06c719SChuck Lever struct xdr_stream *xdr, 2804fc931582SAndy Adamson struct nfs41_create_session_args *args) 2805fc931582SAndy Adamson { 2806fc931582SAndy Adamson struct compound_hdr hdr = { 2807a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2808fc931582SAndy Adamson }; 2809fc931582SAndy Adamson 28109f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28119f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2812fc931582SAndy Adamson encode_nops(&hdr); 2813fc931582SAndy Adamson } 2814fc931582SAndy Adamson 2815fc931582SAndy Adamson /* 28160f3e66c6SAndy Adamson * a DESTROY_SESSION request 28170f3e66c6SAndy Adamson */ 28189f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 28199f06c719SChuck Lever struct xdr_stream *xdr, 28200f3e66c6SAndy Adamson struct nfs4_session *session) 28210f3e66c6SAndy Adamson { 28220f3e66c6SAndy Adamson struct compound_hdr hdr = { 2823a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 28240f3e66c6SAndy Adamson }; 28250f3e66c6SAndy Adamson 28269f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28279f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28280f3e66c6SAndy Adamson encode_nops(&hdr); 28290f3e66c6SAndy Adamson } 28300f3e66c6SAndy Adamson 28310f3e66c6SAndy Adamson /* 283266245539STrond Myklebust * a DESTROY_CLIENTID request 283366245539STrond Myklebust */ 283466245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 283566245539STrond Myklebust struct xdr_stream *xdr, 283666245539STrond Myklebust struct nfs_client *clp) 283766245539STrond Myklebust { 283866245539STrond Myklebust struct compound_hdr hdr = { 283966245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 284066245539STrond Myklebust }; 284166245539STrond Myklebust 284266245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 284366245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 284466245539STrond Myklebust encode_nops(&hdr); 284566245539STrond Myklebust } 284666245539STrond Myklebust 284766245539STrond Myklebust /* 2848fc01cea9SAndy Adamson * a SEQUENCE request 2849fc01cea9SAndy Adamson */ 28509f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2851fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2852fc01cea9SAndy Adamson { 2853fc01cea9SAndy Adamson struct compound_hdr hdr = { 2854fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2855fc01cea9SAndy Adamson }; 2856fc01cea9SAndy Adamson 28579f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28589f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2859fc01cea9SAndy Adamson encode_nops(&hdr); 2860fc01cea9SAndy Adamson } 2861fc01cea9SAndy Adamson 2862fc01cea9SAndy Adamson /* 28632050f0ccSAndy Adamson * a GET_LEASE_TIME request 28642050f0ccSAndy Adamson */ 28659f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 28669f06c719SChuck Lever struct xdr_stream *xdr, 28672050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 28682050f0ccSAndy Adamson { 28692050f0ccSAndy Adamson struct compound_hdr hdr = { 28702050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 28712050f0ccSAndy Adamson }; 2872dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 28732050f0ccSAndy Adamson 28749f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28759f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 28769f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 28779f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 28782050f0ccSAndy Adamson encode_nops(&hdr); 28792050f0ccSAndy Adamson } 288018019753SRicardo Labiaga 288118019753SRicardo Labiaga /* 288218019753SRicardo Labiaga * a RECLAIM_COMPLETE request 288318019753SRicardo Labiaga */ 28849f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28859f06c719SChuck Lever struct xdr_stream *xdr, 288618019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 288718019753SRicardo Labiaga { 288818019753SRicardo Labiaga struct compound_hdr hdr = { 288918019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 289018019753SRicardo Labiaga }; 289118019753SRicardo Labiaga 28929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28939f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28949f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 289518019753SRicardo Labiaga encode_nops(&hdr); 289618019753SRicardo Labiaga } 289718019753SRicardo Labiaga 2898b1f69b75SAndy Adamson /* 2899b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2900b1f69b75SAndy Adamson */ 29019f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 29029f06c719SChuck Lever struct xdr_stream *xdr, 2903b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2904b1f69b75SAndy Adamson { 2905b1f69b75SAndy Adamson struct compound_hdr hdr = { 2906b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2907b1f69b75SAndy Adamson }; 2908b1f69b75SAndy Adamson 29099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29109f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29119f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2912b1f69b75SAndy Adamson 2913b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2914b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2915b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2916b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2917b1f69b75SAndy Adamson args->pdev->pglen); 2918b1f69b75SAndy Adamson 2919b1f69b75SAndy Adamson encode_nops(&hdr); 2920b1f69b75SAndy Adamson } 2921b1f69b75SAndy Adamson 2922b1f69b75SAndy Adamson /* 2923b1f69b75SAndy Adamson * Encode LAYOUTGET request 2924b1f69b75SAndy Adamson */ 29259f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29269f06c719SChuck Lever struct xdr_stream *xdr, 2927b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2928b1f69b75SAndy Adamson { 2929b1f69b75SAndy Adamson struct compound_hdr hdr = { 2930b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2931b1f69b75SAndy Adamson }; 2932b1f69b75SAndy Adamson 29339f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29349f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29359f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 29369f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 293735124a09SWeston Andros Adamson 293835124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 293935124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 294035124a09SWeston Andros Adamson 2941b1f69b75SAndy Adamson encode_nops(&hdr); 2942b1f69b75SAndy Adamson } 2943863a3c6cSAndy Adamson 2944863a3c6cSAndy Adamson /* 2945863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2946863a3c6cSAndy Adamson */ 2947cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2948863a3c6cSAndy Adamson struct xdr_stream *xdr, 2949863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2950863a3c6cSAndy Adamson { 2951ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2952ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2953863a3c6cSAndy Adamson struct compound_hdr hdr = { 2954863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2955863a3c6cSAndy Adamson }; 2956863a3c6cSAndy Adamson 2957863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2958863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2959863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2960ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2961863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2962863a3c6cSAndy Adamson encode_nops(&hdr); 2963cbe82603SBenny Halevy } 2964cbe82603SBenny Halevy 2965cbe82603SBenny Halevy /* 2966cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2967cbe82603SBenny Halevy */ 2968cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2969cbe82603SBenny Halevy struct xdr_stream *xdr, 2970cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2971cbe82603SBenny Halevy { 2972cbe82603SBenny Halevy struct compound_hdr hdr = { 2973cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2974cbe82603SBenny Halevy }; 2975cbe82603SBenny Halevy 2976cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2977cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2978cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2979cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2980cbe82603SBenny Halevy encode_nops(&hdr); 2981863a3c6cSAndy Adamson } 2982fca78d6dSBryan Schumaker 2983fca78d6dSBryan Schumaker /* 2984fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2985fca78d6dSBryan Schumaker */ 2986fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2987fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2988fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2989fca78d6dSBryan Schumaker { 2990fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2991fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2992fca78d6dSBryan Schumaker }; 2993fca78d6dSBryan Schumaker 2994fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2995fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2996fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2997fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2998fca78d6dSBryan Schumaker encode_nops(&hdr); 2999fca78d6dSBryan Schumaker return 0; 3000fca78d6dSBryan Schumaker } 30017d974794SBryan Schumaker 30027d974794SBryan Schumaker /* 30037d974794SBryan Schumaker * Encode TEST_STATEID request 30047d974794SBryan Schumaker */ 30057d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 30067d974794SBryan Schumaker struct xdr_stream *xdr, 30077d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 30087d974794SBryan Schumaker { 30097d974794SBryan Schumaker struct compound_hdr hdr = { 30107d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30117d974794SBryan Schumaker }; 30127d974794SBryan Schumaker 30137d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30147d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30157d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 30167d974794SBryan Schumaker encode_nops(&hdr); 30177d974794SBryan Schumaker } 30189aeda35fSBryan Schumaker 30199aeda35fSBryan Schumaker /* 30209aeda35fSBryan Schumaker * Encode FREE_STATEID request 30219aeda35fSBryan Schumaker */ 30229aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 30239aeda35fSBryan Schumaker struct xdr_stream *xdr, 30249aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 30259aeda35fSBryan Schumaker { 30269aeda35fSBryan Schumaker struct compound_hdr hdr = { 30279aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30289aeda35fSBryan Schumaker }; 30299aeda35fSBryan Schumaker 30309aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30319aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30329aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 30339aeda35fSBryan Schumaker encode_nops(&hdr); 30349aeda35fSBryan Schumaker } 303599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 303699fe60d0SBenny Halevy 3037686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3038686841b3SBenny Halevy { 3039686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3040686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3041686841b3SBenny Halevy func, xdr->end - xdr->p); 3042686841b3SBenny Halevy } 30431da177e4SLinus Torvalds 3044683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 30451da177e4SLinus Torvalds { 30466da59ce2STrond Myklebust ssize_t ret = xdr_stream_decode_opaque_inline(xdr, (void **)string, 30476da59ce2STrond Myklebust NFS4_OPAQUE_LIMIT); 30486da59ce2STrond Myklebust if (unlikely(ret < 0)) { 30496da59ce2STrond Myklebust if (ret == -EBADMSG) 3050c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3051c0eae66eSBenny Halevy return -EIO; 30521da177e4SLinus Torvalds } 30536da59ce2STrond Myklebust *len = ret; 30546da59ce2STrond Myklebust return 0; 30556da59ce2STrond Myklebust } 30561da177e4SLinus Torvalds 30571da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 30581da177e4SLinus Torvalds { 30598687b63aSAl Viro __be32 *p; 30601da177e4SLinus Torvalds 3061c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3062c0eae66eSBenny Halevy if (unlikely(!p)) 3063c0eae66eSBenny Halevy goto out_overflow; 30646f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3065cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30661da177e4SLinus Torvalds 3067c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3068c0eae66eSBenny Halevy if (unlikely(!p)) 3069c0eae66eSBenny Halevy goto out_overflow; 30701da177e4SLinus Torvalds hdr->tag = (char *)p; 30711da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3072cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3073aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3074aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30751da177e4SLinus Torvalds return 0; 3076c0eae66eSBenny Halevy out_overflow: 3077c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3078c0eae66eSBenny Halevy return -EIO; 30791da177e4SLinus Torvalds } 30801da177e4SLinus Torvalds 3081c7848f69STrond Myklebust static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected, 3082c7848f69STrond Myklebust int *nfs_retval) 30831da177e4SLinus Torvalds { 30848687b63aSAl Viro __be32 *p; 30851da177e4SLinus Torvalds uint32_t opnum; 30861da177e4SLinus Torvalds int32_t nfserr; 30871da177e4SLinus Torvalds 3088c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3089c0eae66eSBenny Halevy if (unlikely(!p)) 3090c0eae66eSBenny Halevy goto out_overflow; 30916f723f77SBenny Halevy opnum = be32_to_cpup(p++); 3092c7848f69STrond Myklebust if (unlikely(opnum != expected)) 3093c7848f69STrond Myklebust goto out_bad_operation; 3094c7848f69STrond Myklebust nfserr = be32_to_cpup(p); 3095c7848f69STrond Myklebust if (nfserr == NFS_OK) 3096c7848f69STrond Myklebust *nfs_retval = 0; 3097c7848f69STrond Myklebust else 3098c7848f69STrond Myklebust *nfs_retval = nfs4_stat_to_errno(nfserr); 3099c7848f69STrond Myklebust return true; 3100c7848f69STrond Myklebust out_bad_operation: 3101fe82a183SChuck Lever dprintk("nfs: Server returned operation" 31021da177e4SLinus Torvalds " %d but we issued a request for %d\n", 31031da177e4SLinus Torvalds opnum, expected); 3104c7848f69STrond Myklebust *nfs_retval = -EREMOTEIO; 3105c7848f69STrond Myklebust return false; 3106c0eae66eSBenny Halevy out_overflow: 3107c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3108c7848f69STrond Myklebust *nfs_retval = -EIO; 3109c7848f69STrond Myklebust return false; 3110c7848f69STrond Myklebust } 3111c7848f69STrond Myklebust 3112c7848f69STrond Myklebust static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 3113c7848f69STrond Myklebust { 3114c7848f69STrond Myklebust int retval; 3115c7848f69STrond Myklebust 3116c7848f69STrond Myklebust __decode_op_hdr(xdr, expected, &retval); 3117c7848f69STrond Myklebust return retval; 31181da177e4SLinus Torvalds } 31191da177e4SLinus Torvalds 31201da177e4SLinus Torvalds /* Dummy routine */ 31211bbe60ffSTrond Myklebust static int decode_ace(struct xdr_stream *xdr, void *ace) 31221da177e4SLinus Torvalds { 31238687b63aSAl Viro __be32 *p; 3124683b57b4STrond Myklebust unsigned int strlen; 31251da177e4SLinus Torvalds char *str; 31261da177e4SLinus Torvalds 3127c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3128c0eae66eSBenny Halevy if (likely(p)) 31291da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3130c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3131c0eae66eSBenny Halevy return -EIO; 31321da177e4SLinus Torvalds } 31331da177e4SLinus Torvalds 31341da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 31351da177e4SLinus Torvalds { 31368687b63aSAl Viro uint32_t bmlen; 31378687b63aSAl Viro __be32 *p; 31381da177e4SLinus Torvalds 3139c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3140c0eae66eSBenny Halevy if (unlikely(!p)) 3141c0eae66eSBenny Halevy goto out_overflow; 3142cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 31431da177e4SLinus Torvalds 3144dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3145c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3146c0eae66eSBenny Halevy if (unlikely(!p)) 3147c0eae66eSBenny Halevy goto out_overflow; 31481da177e4SLinus Torvalds if (bmlen > 0) { 31496f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3150dae100c2SFred Isaman if (bmlen > 1) { 3151dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3152dae100c2SFred Isaman if (bmlen > 2) 3153dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3154dae100c2SFred Isaman } 31551da177e4SLinus Torvalds } 31561da177e4SLinus Torvalds return 0; 3157c0eae66eSBenny Halevy out_overflow: 3158c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3159c0eae66eSBenny Halevy return -EIO; 31601da177e4SLinus Torvalds } 31611da177e4SLinus Torvalds 3162256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 31631da177e4SLinus Torvalds { 31648687b63aSAl Viro __be32 *p; 31651da177e4SLinus Torvalds 3166c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3167c0eae66eSBenny Halevy if (unlikely(!p)) 3168c0eae66eSBenny Halevy goto out_overflow; 3169cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3170256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 31711da177e4SLinus Torvalds return 0; 3172c0eae66eSBenny Halevy out_overflow: 3173c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3174c0eae66eSBenny Halevy return -EIO; 31751da177e4SLinus Torvalds } 31761da177e4SLinus Torvalds 31771da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31781da177e4SLinus Torvalds { 31791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31803388bff5SRoman Borisov int ret; 31813388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31823388bff5SRoman Borisov if (unlikely(ret < 0)) 31833388bff5SRoman Borisov return ret; 31841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31851da177e4SLinus Torvalds } else 3186dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3187dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3188dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31891da177e4SLinus Torvalds return 0; 31901da177e4SLinus Torvalds } 31911da177e4SLinus Torvalds 31921da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31931da177e4SLinus Torvalds { 31948687b63aSAl Viro __be32 *p; 3195409924e4STrond Myklebust int ret = 0; 31961da177e4SLinus Torvalds 31971da177e4SLinus Torvalds *type = 0; 31981da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31991da177e4SLinus Torvalds return -EIO; 32001da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3201c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3202c0eae66eSBenny Halevy if (unlikely(!p)) 3203c0eae66eSBenny Halevy goto out_overflow; 3204cccddf4fSBenny Halevy *type = be32_to_cpup(p); 32051da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 32063110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 32071da177e4SLinus Torvalds return -EIO; 32081da177e4SLinus Torvalds } 32091da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3210409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 32111da177e4SLinus Torvalds } 3212bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3213409924e4STrond Myklebust return ret; 3214c0eae66eSBenny Halevy out_overflow: 3215c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3216c0eae66eSBenny Halevy return -EIO; 32171da177e4SLinus Torvalds } 32181da177e4SLinus Torvalds 3219264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3220264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3221264e6351SChuck Lever { 3222264e6351SChuck Lever __be32 *p; 3223264e6351SChuck Lever 3224264e6351SChuck Lever *type = 0; 3225264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3226264e6351SChuck Lever return -EIO; 3227264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3228264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3229264e6351SChuck Lever if (unlikely(!p)) 3230264e6351SChuck Lever goto out_overflow; 3231264e6351SChuck Lever *type = be32_to_cpup(p); 3232264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3233264e6351SChuck Lever } 3234264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3235264e6351SChuck Lever return 0; 3236264e6351SChuck Lever out_overflow: 3237264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3238264e6351SChuck Lever return -EIO; 3239264e6351SChuck Lever } 3240264e6351SChuck Lever 32411da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 32421da177e4SLinus Torvalds { 32438687b63aSAl Viro __be32 *p; 3244409924e4STrond Myklebust int ret = 0; 32451da177e4SLinus Torvalds 32461da177e4SLinus Torvalds *change = 0; 32471da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 32481da177e4SLinus Torvalds return -EIO; 32491da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3250c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3251c0eae66eSBenny Halevy if (unlikely(!p)) 3252c0eae66eSBenny Halevy goto out_overflow; 3253cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 32541da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3255409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 32561da177e4SLinus Torvalds } 32573110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 32581da177e4SLinus Torvalds (unsigned long long)*change); 3259409924e4STrond Myklebust return ret; 3260c0eae66eSBenny Halevy out_overflow: 3261c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3262c0eae66eSBenny Halevy return -EIO; 32631da177e4SLinus Torvalds } 32641da177e4SLinus Torvalds 32651da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 32661da177e4SLinus Torvalds { 32678687b63aSAl Viro __be32 *p; 3268409924e4STrond Myklebust int ret = 0; 32691da177e4SLinus Torvalds 32701da177e4SLinus Torvalds *size = 0; 32711da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 32721da177e4SLinus Torvalds return -EIO; 32731da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3274c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3275c0eae66eSBenny Halevy if (unlikely(!p)) 3276c0eae66eSBenny Halevy goto out_overflow; 3277cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3279409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32801da177e4SLinus Torvalds } 32813110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3282409924e4STrond Myklebust return ret; 3283c0eae66eSBenny Halevy out_overflow: 3284c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3285c0eae66eSBenny Halevy return -EIO; 32861da177e4SLinus Torvalds } 32871da177e4SLinus Torvalds 32881da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32891da177e4SLinus Torvalds { 32908687b63aSAl Viro __be32 *p; 32911da177e4SLinus Torvalds 32921da177e4SLinus Torvalds *res = 0; 32931da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32941da177e4SLinus Torvalds return -EIO; 32951da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3296c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3297c0eae66eSBenny Halevy if (unlikely(!p)) 3298c0eae66eSBenny Halevy goto out_overflow; 3299cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33001da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 33011da177e4SLinus Torvalds } 33023110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 33031da177e4SLinus Torvalds return 0; 3304c0eae66eSBenny Halevy out_overflow: 3305c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3306c0eae66eSBenny Halevy return -EIO; 33071da177e4SLinus Torvalds } 33081da177e4SLinus Torvalds 33091da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33101da177e4SLinus Torvalds { 33118687b63aSAl Viro __be32 *p; 33121da177e4SLinus Torvalds 33131da177e4SLinus Torvalds *res = 0; 33141da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 33151da177e4SLinus Torvalds return -EIO; 33161da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3317c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3318c0eae66eSBenny Halevy if (unlikely(!p)) 3319c0eae66eSBenny Halevy goto out_overflow; 3320cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33211da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 33221da177e4SLinus Torvalds } 33233110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 33241da177e4SLinus Torvalds return 0; 3325c0eae66eSBenny Halevy out_overflow: 3326c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3327c0eae66eSBenny Halevy return -EIO; 33281da177e4SLinus Torvalds } 33291da177e4SLinus Torvalds 33308b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 33311da177e4SLinus Torvalds { 33328687b63aSAl Viro __be32 *p; 3333409924e4STrond Myklebust int ret = 0; 33341da177e4SLinus Torvalds 33351da177e4SLinus Torvalds fsid->major = 0; 33361da177e4SLinus Torvalds fsid->minor = 0; 33371da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 33381da177e4SLinus Torvalds return -EIO; 33391da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3340c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3341c0eae66eSBenny Halevy if (unlikely(!p)) 3342c0eae66eSBenny Halevy goto out_overflow; 33433ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3344cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 33451da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3346409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 33471da177e4SLinus Torvalds } 33483110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 33491da177e4SLinus Torvalds (unsigned long long)fsid->major, 33501da177e4SLinus Torvalds (unsigned long long)fsid->minor); 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_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33581da177e4SLinus Torvalds { 33598687b63aSAl Viro __be32 *p; 33601da177e4SLinus Torvalds 33611da177e4SLinus Torvalds *res = 60; 33621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 33631da177e4SLinus Torvalds return -EIO; 33641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 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_LEASE_TIME; 33701da177e4SLinus Torvalds } 33713110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 33721da177e4SLinus Torvalds return 0; 3373c0eae66eSBenny Halevy out_overflow: 3374c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3375c0eae66eSBenny Halevy return -EIO; 33761da177e4SLinus Torvalds } 33771da177e4SLinus Torvalds 3378ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3379ae42c70aSBryan Schumaker { 3380ae42c70aSBryan Schumaker __be32 *p; 3381ae42c70aSBryan Schumaker 3382ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3383ae42c70aSBryan Schumaker return -EIO; 3384ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3385ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3386ae42c70aSBryan Schumaker if (unlikely(!p)) 3387ae42c70aSBryan Schumaker goto out_overflow; 3388ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3389ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3390ae42c70aSBryan Schumaker } 3391ae42c70aSBryan Schumaker return 0; 3392ae42c70aSBryan Schumaker out_overflow: 3393ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3394ae42c70aSBryan Schumaker return -EIO; 3395ae42c70aSBryan Schumaker } 3396ae42c70aSBryan Schumaker 33978c61282fSKinglong Mee static int decode_attr_exclcreat_supported(struct xdr_stream *xdr, 33988c61282fSKinglong Mee uint32_t *bitmap, uint32_t *bitmask) 33998c61282fSKinglong Mee { 34008c61282fSKinglong Mee if (likely(bitmap[2] & FATTR4_WORD2_SUPPATTR_EXCLCREAT)) { 34018c61282fSKinglong Mee int ret; 34028c61282fSKinglong Mee ret = decode_attr_bitmap(xdr, bitmask); 34038c61282fSKinglong Mee if (unlikely(ret < 0)) 34048c61282fSKinglong Mee return ret; 34058c61282fSKinglong Mee bitmap[2] &= ~FATTR4_WORD2_SUPPATTR_EXCLCREAT; 34068c61282fSKinglong Mee } else 34078c61282fSKinglong Mee bitmask[0] = bitmask[1] = bitmask[2] = 0; 34088c61282fSKinglong Mee dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 34098c61282fSKinglong Mee bitmask[0], bitmask[1], bitmask[2]); 34108c61282fSKinglong Mee return 0; 34118c61282fSKinglong Mee } 34128c61282fSKinglong Mee 3413ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3414ae42c70aSBryan Schumaker { 3415ae42c70aSBryan Schumaker __be32 *p; 3416ae42c70aSBryan Schumaker int len; 3417ae42c70aSBryan Schumaker 34187ad07353STrond Myklebust if (fh != NULL) 3419ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3420ae42c70aSBryan Schumaker 3421ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3422ae42c70aSBryan Schumaker return -EIO; 3423ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3424ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3425ae42c70aSBryan Schumaker if (unlikely(!p)) 3426ae42c70aSBryan Schumaker goto out_overflow; 3427ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3428ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3429ae42c70aSBryan Schumaker return -EIO; 3430ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3431ae42c70aSBryan Schumaker if (unlikely(!p)) 3432ae42c70aSBryan Schumaker goto out_overflow; 34337ad07353STrond Myklebust if (fh != NULL) { 3434ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 34357ad07353STrond Myklebust fh->size = len; 34367ad07353STrond Myklebust } 3437ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3438ae42c70aSBryan Schumaker } 3439ae42c70aSBryan Schumaker return 0; 3440ae42c70aSBryan Schumaker out_overflow: 3441ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3442ae42c70aSBryan Schumaker return -EIO; 3443ae42c70aSBryan Schumaker } 3444ae42c70aSBryan Schumaker 34451da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34461da177e4SLinus Torvalds { 34478687b63aSAl Viro __be32 *p; 34481da177e4SLinus Torvalds 3449a1800acaSMalahal Naineni *res = 0; 34501da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 34511da177e4SLinus Torvalds return -EIO; 34521da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3453c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3454c0eae66eSBenny Halevy if (unlikely(!p)) 3455c0eae66eSBenny Halevy goto out_overflow; 3456cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34571da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 34581da177e4SLinus Torvalds } 34593110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 34601da177e4SLinus Torvalds return 0; 3461c0eae66eSBenny Halevy out_overflow: 3462c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3463c0eae66eSBenny Halevy return -EIO; 34641da177e4SLinus Torvalds } 34651da177e4SLinus Torvalds 34661da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 34671da177e4SLinus Torvalds { 34688687b63aSAl Viro __be32 *p; 3469409924e4STrond Myklebust int ret = 0; 34701da177e4SLinus Torvalds 34711da177e4SLinus Torvalds *fileid = 0; 34721da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 34731da177e4SLinus Torvalds return -EIO; 34741da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3475c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3476c0eae66eSBenny Halevy if (unlikely(!p)) 3477c0eae66eSBenny Halevy goto out_overflow; 3478cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 34791da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3480409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 34811da177e4SLinus Torvalds } 34823110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3483409924e4STrond Myklebust return ret; 3484c0eae66eSBenny Halevy out_overflow: 3485c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3486c0eae66eSBenny Halevy return -EIO; 34871da177e4SLinus Torvalds } 34881da177e4SLinus Torvalds 348999baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 349099baf625SManoj Naik { 34918687b63aSAl Viro __be32 *p; 3492409924e4STrond Myklebust int ret = 0; 349399baf625SManoj Naik 349499baf625SManoj Naik *fileid = 0; 349599baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 349699baf625SManoj Naik return -EIO; 349799baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3498c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3499c0eae66eSBenny Halevy if (unlikely(!p)) 3500c0eae66eSBenny Halevy goto out_overflow; 3501cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 350299baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 350328331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 350499baf625SManoj Naik } 35053110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3506409924e4STrond Myklebust return ret; 3507c0eae66eSBenny Halevy out_overflow: 3508c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3509c0eae66eSBenny Halevy return -EIO; 351099baf625SManoj Naik } 351199baf625SManoj Naik 35121da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35131da177e4SLinus Torvalds { 35148687b63aSAl Viro __be32 *p; 35151da177e4SLinus Torvalds int status = 0; 35161da177e4SLinus Torvalds 35171da177e4SLinus Torvalds *res = 0; 35181da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 35191da177e4SLinus Torvalds return -EIO; 35201da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3521c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3522c0eae66eSBenny Halevy if (unlikely(!p)) 3523c0eae66eSBenny Halevy goto out_overflow; 3524cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35251da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 35261da177e4SLinus Torvalds } 35273110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 35281da177e4SLinus Torvalds return status; 3529c0eae66eSBenny Halevy out_overflow: 3530c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3531c0eae66eSBenny Halevy return -EIO; 35321da177e4SLinus Torvalds } 35331da177e4SLinus Torvalds 35341da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35351da177e4SLinus Torvalds { 35368687b63aSAl Viro __be32 *p; 35371da177e4SLinus Torvalds int status = 0; 35381da177e4SLinus Torvalds 35391da177e4SLinus Torvalds *res = 0; 35401da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 35411da177e4SLinus Torvalds return -EIO; 35421da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3543c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3544c0eae66eSBenny Halevy if (unlikely(!p)) 3545c0eae66eSBenny Halevy goto out_overflow; 3546cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 35481da177e4SLinus Torvalds } 35493110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 35501da177e4SLinus Torvalds return status; 3551c0eae66eSBenny Halevy out_overflow: 3552c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3553c0eae66eSBenny Halevy return -EIO; 35541da177e4SLinus Torvalds } 35551da177e4SLinus Torvalds 35561da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35571da177e4SLinus Torvalds { 35588687b63aSAl Viro __be32 *p; 35591da177e4SLinus Torvalds int status = 0; 35601da177e4SLinus Torvalds 35611da177e4SLinus Torvalds *res = 0; 35621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 35631da177e4SLinus Torvalds return -EIO; 35641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3565c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3566c0eae66eSBenny Halevy if (unlikely(!p)) 3567c0eae66eSBenny Halevy goto out_overflow; 3568cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35691da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 35701da177e4SLinus Torvalds } 35713110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 35721da177e4SLinus Torvalds return status; 3573c0eae66eSBenny Halevy out_overflow: 3574c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3575c0eae66eSBenny Halevy return -EIO; 35761da177e4SLinus Torvalds } 35771da177e4SLinus Torvalds 35787aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 35797aaa0b3bSManoj Naik { 3580464ad6b1SChuck Lever u32 n; 35818687b63aSAl Viro __be32 *p; 35827aaa0b3bSManoj Naik int status = 0; 35837aaa0b3bSManoj Naik 3584c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3585c0eae66eSBenny Halevy if (unlikely(!p)) 3586c0eae66eSBenny Halevy goto out_overflow; 3587cccddf4fSBenny Halevy n = be32_to_cpup(p); 358833a43f28SAndy Adamson if (n == 0) 358933a43f28SAndy Adamson goto root_path; 359002a2976cSChuck Lever dprintk("pathname4: "); 3591809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3592809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3593809b426cSTrond Myklebust goto out_eio; 3594809b426cSTrond Myklebust } 3595809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 35967aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 35977aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 35987aaa0b3bSManoj Naik if (unlikely(status != 0)) 35997aaa0b3bSManoj Naik goto out_eio; 360095a13f7bSTrond Myklebust ifdebug (XDR) 360102a2976cSChuck Lever pr_cont("%s%.*s ", 360202a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 360302a2976cSChuck Lever component->len, component->data); 36047aaa0b3bSManoj Naik } 36057aaa0b3bSManoj Naik out: 36067aaa0b3bSManoj Naik return status; 360733a43f28SAndy Adamson root_path: 360833a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 360933a43f28SAndy Adamson path->ncomponents = 1; 361033a43f28SAndy Adamson path->components[0].len=0; 361133a43f28SAndy Adamson path->components[0].data=NULL; 361202a2976cSChuck Lever dprintk("pathname4: /\n"); 361333a43f28SAndy Adamson goto out; 36147aaa0b3bSManoj Naik out_eio: 36157aaa0b3bSManoj Naik dprintk(" status %d", status); 36167aaa0b3bSManoj Naik status = -EIO; 36177aaa0b3bSManoj Naik goto out; 3618c0eae66eSBenny Halevy out_overflow: 3619c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3620c0eae66eSBenny Halevy return -EIO; 36217aaa0b3bSManoj Naik } 36227aaa0b3bSManoj Naik 36237aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3624683b57b4STrond Myklebust { 3625683b57b4STrond Myklebust int n; 36268687b63aSAl Viro __be32 *p; 3627683b57b4STrond Myklebust int status = -EIO; 3628683b57b4STrond Myklebust 3629683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3630683b57b4STrond Myklebust goto out; 3631683b57b4STrond Myklebust status = 0; 3632683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3633683b57b4STrond Myklebust goto out; 3634f54423a1SKinglong Mee bitmap[0] &= ~FATTR4_WORD0_FS_LOCATIONS; 36358b7e3f49STrond Myklebust status = -EIO; 36368b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 36378b7e3f49STrond Myklebust if (unlikely(res == NULL)) 36388b7e3f49STrond Myklebust goto out; 363902a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 36407aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3641683b57b4STrond Myklebust if (unlikely(status != 0)) 3642683b57b4STrond Myklebust goto out; 3643c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3644c0eae66eSBenny Halevy if (unlikely(!p)) 3645c0eae66eSBenny Halevy goto out_overflow; 3646cccddf4fSBenny Halevy n = be32_to_cpup(p); 3647683b57b4STrond Myklebust if (n <= 0) 3648683b57b4STrond Myklebust goto out_eio; 3649809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3650464ad6b1SChuck Lever u32 m; 3651809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3652683b57b4STrond Myklebust 3653809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3654809b426cSTrond Myklebust break; 3655809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3656c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3657c0eae66eSBenny Halevy if (unlikely(!p)) 3658c0eae66eSBenny Halevy goto out_overflow; 3659cccddf4fSBenny Halevy m = be32_to_cpup(p); 36607aaa0b3bSManoj Naik 366102a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3662809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3663809b426cSTrond Myklebust struct nfs4_string *server; 3664809b426cSTrond Myklebust 3665809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3666464ad6b1SChuck Lever unsigned int i; 3667464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3668464ad6b1SChuck Lever "returned for location %u\n", 36693110ff80SHarvey Harrison __func__, 3670464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3671464ad6b1SChuck Lever m, res->nlocations); 36727aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 36732e42c3e2STrond Myklebust unsigned int len; 36747aaa0b3bSManoj Naik char *data; 36757aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3676683b57b4STrond Myklebust if (unlikely(status != 0)) 3677683b57b4STrond Myklebust goto out_eio; 36787aaa0b3bSManoj Naik } 3679809b426cSTrond Myklebust break; 36807aaa0b3bSManoj Naik } 3681809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3682809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3683809b426cSTrond Myklebust if (unlikely(status != 0)) 3684809b426cSTrond Myklebust goto out_eio; 3685809b426cSTrond Myklebust dprintk("%s ", server->data); 36867aaa0b3bSManoj Naik } 36877aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 36887aaa0b3bSManoj Naik if (unlikely(status != 0)) 36897aaa0b3bSManoj Naik goto out_eio; 3690683b57b4STrond Myklebust } 3691409924e4STrond Myklebust if (res->nlocations != 0) 369281934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3693683b57b4STrond Myklebust out: 36943110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3695683b57b4STrond Myklebust return status; 3696c0eae66eSBenny Halevy out_overflow: 3697c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3698683b57b4STrond Myklebust out_eio: 3699683b57b4STrond Myklebust status = -EIO; 3700683b57b4STrond Myklebust goto out; 3701683b57b4STrond Myklebust } 3702683b57b4STrond Myklebust 37031da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 37041da177e4SLinus Torvalds { 37058687b63aSAl Viro __be32 *p; 37061da177e4SLinus Torvalds int status = 0; 37071da177e4SLinus Torvalds 37081da177e4SLinus Torvalds *res = 0; 37091da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 37101da177e4SLinus Torvalds return -EIO; 37111da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3712c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3713c0eae66eSBenny Halevy if (unlikely(!p)) 3714c0eae66eSBenny Halevy goto out_overflow; 3715cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 37161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 37171da177e4SLinus Torvalds } 37183110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 37191da177e4SLinus Torvalds return status; 3720c0eae66eSBenny Halevy out_overflow: 3721c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3722c0eae66eSBenny Halevy return -EIO; 37231da177e4SLinus Torvalds } 37241da177e4SLinus Torvalds 37251da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 37261da177e4SLinus Torvalds { 37278687b63aSAl Viro __be32 *p; 37281da177e4SLinus Torvalds int status = 0; 37291da177e4SLinus Torvalds 37301da177e4SLinus Torvalds *maxlink = 1; 37311da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 37321da177e4SLinus Torvalds return -EIO; 37331da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3734c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3735c0eae66eSBenny Halevy if (unlikely(!p)) 3736c0eae66eSBenny Halevy goto out_overflow; 3737cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 37381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 37391da177e4SLinus Torvalds } 37403110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 37411da177e4SLinus Torvalds return status; 3742c0eae66eSBenny Halevy out_overflow: 3743c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3744c0eae66eSBenny Halevy return -EIO; 37451da177e4SLinus Torvalds } 37461da177e4SLinus Torvalds 37471da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 37481da177e4SLinus Torvalds { 37498687b63aSAl Viro __be32 *p; 37501da177e4SLinus Torvalds int status = 0; 37511da177e4SLinus Torvalds 37521da177e4SLinus Torvalds *maxname = 1024; 37531da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 37541da177e4SLinus Torvalds return -EIO; 37551da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3756c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3757c0eae66eSBenny Halevy if (unlikely(!p)) 3758c0eae66eSBenny Halevy goto out_overflow; 3759cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 37601da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 37611da177e4SLinus Torvalds } 37623110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 37631da177e4SLinus Torvalds return status; 3764c0eae66eSBenny Halevy out_overflow: 3765c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3766c0eae66eSBenny Halevy return -EIO; 37671da177e4SLinus Torvalds } 37681da177e4SLinus Torvalds 37691da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37701da177e4SLinus Torvalds { 37718687b63aSAl Viro __be32 *p; 37721da177e4SLinus Torvalds int status = 0; 37731da177e4SLinus Torvalds 37741da177e4SLinus Torvalds *res = 1024; 37751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 37761da177e4SLinus Torvalds return -EIO; 37771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 37781da177e4SLinus Torvalds uint64_t maxread; 3779c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3780c0eae66eSBenny Halevy if (unlikely(!p)) 3781c0eae66eSBenny Halevy goto out_overflow; 3782cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 37831da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 37841da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 37851da177e4SLinus Torvalds *res = (uint32_t)maxread; 37861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37871da177e4SLinus Torvalds } 37883110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37891da177e4SLinus Torvalds return status; 3790c0eae66eSBenny Halevy out_overflow: 3791c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3792c0eae66eSBenny Halevy return -EIO; 37931da177e4SLinus Torvalds } 37941da177e4SLinus Torvalds 37951da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37961da177e4SLinus Torvalds { 37978687b63aSAl Viro __be32 *p; 37981da177e4SLinus Torvalds int status = 0; 37991da177e4SLinus Torvalds 38001da177e4SLinus Torvalds *res = 1024; 38011da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 38021da177e4SLinus Torvalds return -EIO; 38031da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 38041da177e4SLinus Torvalds uint64_t maxwrite; 3805c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3806c0eae66eSBenny Halevy if (unlikely(!p)) 3807c0eae66eSBenny Halevy goto out_overflow; 3808cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 38091da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 38101da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 38111da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 38121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 38131da177e4SLinus Torvalds } 38143110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 38151da177e4SLinus Torvalds return status; 3816c0eae66eSBenny Halevy out_overflow: 3817c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3818c0eae66eSBenny Halevy return -EIO; 38191da177e4SLinus Torvalds } 38201da177e4SLinus Torvalds 3821bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 38221da177e4SLinus Torvalds { 3823bca79478STrond Myklebust uint32_t tmp; 38248687b63aSAl Viro __be32 *p; 3825409924e4STrond Myklebust int ret = 0; 38261da177e4SLinus Torvalds 38271da177e4SLinus Torvalds *mode = 0; 38281da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 38291da177e4SLinus Torvalds return -EIO; 38301da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3831c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3832c0eae66eSBenny Halevy if (unlikely(!p)) 3833c0eae66eSBenny Halevy goto out_overflow; 3834cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3835bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 38361da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3837409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 38381da177e4SLinus Torvalds } 38393110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3840409924e4STrond Myklebust return ret; 3841c0eae66eSBenny Halevy out_overflow: 3842c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3843c0eae66eSBenny Halevy return -EIO; 38441da177e4SLinus Torvalds } 38451da177e4SLinus Torvalds 38461da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 38471da177e4SLinus Torvalds { 38488687b63aSAl Viro __be32 *p; 3849409924e4STrond Myklebust int ret = 0; 38501da177e4SLinus Torvalds 38511da177e4SLinus Torvalds *nlink = 1; 38521da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 38531da177e4SLinus Torvalds return -EIO; 38541da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3855c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3856c0eae66eSBenny Halevy if (unlikely(!p)) 3857c0eae66eSBenny Halevy goto out_overflow; 3858cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 38591da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3860409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 38611da177e4SLinus Torvalds } 38623110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3863409924e4STrond Myklebust return ret; 3864c0eae66eSBenny Halevy out_overflow: 3865c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3866c0eae66eSBenny Halevy return -EIO; 38671da177e4SLinus Torvalds } 38681da177e4SLinus Torvalds 3869686a816aSTrond Myklebust static ssize_t decode_nfs4_string(struct xdr_stream *xdr, 3870686a816aSTrond Myklebust struct nfs4_string *name, gfp_t gfp_flags) 3871686a816aSTrond Myklebust { 3872686a816aSTrond Myklebust ssize_t ret; 3873686a816aSTrond Myklebust 3874686a816aSTrond Myklebust ret = xdr_stream_decode_string_dup(xdr, &name->data, 3875686a816aSTrond Myklebust XDR_MAX_NETOBJ, gfp_flags); 3876686a816aSTrond Myklebust name->len = 0; 3877686a816aSTrond Myklebust if (ret > 0) 3878686a816aSTrond Myklebust name->len = ret; 3879686a816aSTrond Myklebust return ret; 3880686a816aSTrond Myklebust } 3881686a816aSTrond Myklebust 388280e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3883e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 38846926afd1STrond Myklebust struct nfs4_string *owner_name) 38851da177e4SLinus Torvalds { 3886686a816aSTrond Myklebust ssize_t len; 3887686a816aSTrond Myklebust char *p; 38881da177e4SLinus Torvalds 3889e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 38901da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 38911da177e4SLinus Torvalds return -EIO; 3892686a816aSTrond Myklebust if (!(bitmap[1] & FATTR4_WORD1_OWNER)) 3893686a816aSTrond Myklebust return 0; 38941da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 3895686a816aSTrond Myklebust 3896686a816aSTrond Myklebust if (owner_name != NULL) { 3897686a816aSTrond Myklebust len = decode_nfs4_string(xdr, owner_name, GFP_NOWAIT); 3898686a816aSTrond Myklebust if (len <= 0) 3899686a816aSTrond Myklebust goto out; 3900686a816aSTrond Myklebust dprintk("%s: name=%s\n", __func__, owner_name->data); 3901686a816aSTrond Myklebust return NFS_ATTR_FATTR_OWNER_NAME; 3902686a816aSTrond Myklebust } else { 3903686a816aSTrond Myklebust len = xdr_stream_decode_opaque_inline(xdr, (void **)&p, 3904686a816aSTrond Myklebust XDR_MAX_NETOBJ); 3905686a816aSTrond Myklebust if (len <= 0 || nfs_map_name_to_uid(server, p, len, uid) != 0) 3906686a816aSTrond Myklebust goto out; 3907e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3908686a816aSTrond Myklebust return NFS_ATTR_FATTR_OWNER; 3909686a816aSTrond Myklebust } 3910686a816aSTrond Myklebust out: 3911686a816aSTrond Myklebust if (len != -EBADMSG) 3912686a816aSTrond Myklebust return 0; 3913c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3914c0eae66eSBenny Halevy return -EIO; 39151da177e4SLinus Torvalds } 39161da177e4SLinus Torvalds 391780e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3918e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 39196926afd1STrond Myklebust struct nfs4_string *group_name) 39201da177e4SLinus Torvalds { 3921686a816aSTrond Myklebust ssize_t len; 3922686a816aSTrond Myklebust char *p; 39231da177e4SLinus Torvalds 3924e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 39251da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 39261da177e4SLinus Torvalds return -EIO; 3927686a816aSTrond Myklebust if (!(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) 3928686a816aSTrond Myklebust return 0; 39291da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 3930686a816aSTrond Myklebust 3931686a816aSTrond Myklebust if (group_name != NULL) { 3932686a816aSTrond Myklebust len = decode_nfs4_string(xdr, group_name, GFP_NOWAIT); 3933686a816aSTrond Myklebust if (len <= 0) 3934686a816aSTrond Myklebust goto out; 3935686a816aSTrond Myklebust dprintk("%s: name=%s\n", __func__, group_name->data); 39366f1f6220SKinglong Mee return NFS_ATTR_FATTR_GROUP_NAME; 3937686a816aSTrond Myklebust } else { 3938686a816aSTrond Myklebust len = xdr_stream_decode_opaque_inline(xdr, (void **)&p, 3939686a816aSTrond Myklebust XDR_MAX_NETOBJ); 3940686a816aSTrond Myklebust if (len <= 0 || nfs_map_group_to_gid(server, p, len, gid) != 0) 3941686a816aSTrond Myklebust goto out; 3942e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 3943686a816aSTrond Myklebust return NFS_ATTR_FATTR_GROUP; 3944686a816aSTrond Myklebust } 3945686a816aSTrond Myklebust out: 3946686a816aSTrond Myklebust if (len != -EBADMSG) 3947686a816aSTrond Myklebust return 0; 3948c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3949c0eae66eSBenny Halevy return -EIO; 39501da177e4SLinus Torvalds } 39511da177e4SLinus Torvalds 39521da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 39531da177e4SLinus Torvalds { 39548687b63aSAl Viro uint32_t major = 0, minor = 0; 39558687b63aSAl Viro __be32 *p; 3956409924e4STrond Myklebust int ret = 0; 39571da177e4SLinus Torvalds 39581da177e4SLinus Torvalds *rdev = MKDEV(0,0); 39591da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 39601da177e4SLinus Torvalds return -EIO; 39611da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 39621da177e4SLinus Torvalds dev_t tmp; 39631da177e4SLinus Torvalds 3964c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3965c0eae66eSBenny Halevy if (unlikely(!p)) 3966c0eae66eSBenny Halevy goto out_overflow; 39676f723f77SBenny Halevy major = be32_to_cpup(p++); 3968cccddf4fSBenny Halevy minor = be32_to_cpup(p); 39691da177e4SLinus Torvalds tmp = MKDEV(major, minor); 39701da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 39711da177e4SLinus Torvalds *rdev = tmp; 39721da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3973409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39741da177e4SLinus Torvalds } 39753110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3976409924e4STrond Myklebust return ret; 3977c0eae66eSBenny Halevy out_overflow: 3978c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3979c0eae66eSBenny Halevy return -EIO; 39801da177e4SLinus Torvalds } 39811da177e4SLinus Torvalds 39821da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39831da177e4SLinus Torvalds { 39848687b63aSAl Viro __be32 *p; 39851da177e4SLinus Torvalds int status = 0; 39861da177e4SLinus Torvalds 39871da177e4SLinus Torvalds *res = 0; 39881da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39891da177e4SLinus Torvalds return -EIO; 39901da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3991c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3992c0eae66eSBenny Halevy if (unlikely(!p)) 3993c0eae66eSBenny Halevy goto out_overflow; 3994cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39951da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39961da177e4SLinus Torvalds } 39973110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39981da177e4SLinus Torvalds return status; 3999c0eae66eSBenny Halevy out_overflow: 4000c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4001c0eae66eSBenny Halevy return -EIO; 40021da177e4SLinus Torvalds } 40031da177e4SLinus Torvalds 40041da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40051da177e4SLinus Torvalds { 40068687b63aSAl Viro __be32 *p; 40071da177e4SLinus Torvalds int status = 0; 40081da177e4SLinus Torvalds 40091da177e4SLinus Torvalds *res = 0; 40101da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 40111da177e4SLinus Torvalds return -EIO; 40121da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 4013c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4014c0eae66eSBenny Halevy if (unlikely(!p)) 4015c0eae66eSBenny Halevy goto out_overflow; 4016cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40171da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 40181da177e4SLinus Torvalds } 40193110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 40201da177e4SLinus Torvalds return status; 4021c0eae66eSBenny Halevy out_overflow: 4022c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4023c0eae66eSBenny Halevy return -EIO; 40241da177e4SLinus Torvalds } 40251da177e4SLinus Torvalds 40261da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40271da177e4SLinus Torvalds { 40288687b63aSAl Viro __be32 *p; 40291da177e4SLinus Torvalds int status = 0; 40301da177e4SLinus Torvalds 40311da177e4SLinus Torvalds *res = 0; 40321da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 40331da177e4SLinus Torvalds return -EIO; 40341da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4035c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4036c0eae66eSBenny Halevy if (unlikely(!p)) 4037c0eae66eSBenny Halevy goto out_overflow; 4038cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40391da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 40401da177e4SLinus Torvalds } 40413110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 40421da177e4SLinus Torvalds return status; 4043c0eae66eSBenny Halevy out_overflow: 4044c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4045c0eae66eSBenny Halevy return -EIO; 40461da177e4SLinus Torvalds } 40471da177e4SLinus Torvalds 40481da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 40491da177e4SLinus Torvalds { 40508687b63aSAl Viro __be32 *p; 4051409924e4STrond Myklebust int ret = 0; 40521da177e4SLinus Torvalds 40531da177e4SLinus Torvalds *used = 0; 40541da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 40551da177e4SLinus Torvalds return -EIO; 40561da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4057c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4058c0eae66eSBenny Halevy if (unlikely(!p)) 4059c0eae66eSBenny Halevy goto out_overflow; 4060cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 40611da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4062409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 40631da177e4SLinus Torvalds } 40643110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 40651da177e4SLinus Torvalds (unsigned long long)*used); 4066409924e4STrond Myklebust return ret; 4067c0eae66eSBenny Halevy out_overflow: 4068c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4069c0eae66eSBenny Halevy return -EIO; 40701da177e4SLinus Torvalds } 40711da177e4SLinus Torvalds 40721da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40731da177e4SLinus Torvalds { 40748687b63aSAl Viro __be32 *p; 40751da177e4SLinus Torvalds uint64_t sec; 40761da177e4SLinus Torvalds uint32_t nsec; 40771da177e4SLinus Torvalds 4078c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4079c0eae66eSBenny Halevy if (unlikely(!p)) 4080c0eae66eSBenny Halevy goto out_overflow; 40813ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 4082cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 40831da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40841da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40851da177e4SLinus Torvalds return 0; 4086c0eae66eSBenny Halevy out_overflow: 4087c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4088c0eae66eSBenny Halevy return -EIO; 40891da177e4SLinus Torvalds } 40901da177e4SLinus Torvalds 40911da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40921da177e4SLinus Torvalds { 40931da177e4SLinus Torvalds int status = 0; 40941da177e4SLinus Torvalds 40951da177e4SLinus Torvalds time->tv_sec = 0; 40961da177e4SLinus Torvalds time->tv_nsec = 0; 40971da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40981da177e4SLinus Torvalds return -EIO; 40991da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 41001da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4101409924e4STrond Myklebust if (status == 0) 4102409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 41031da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 41041da177e4SLinus Torvalds } 41053110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 41061da177e4SLinus Torvalds return status; 41071da177e4SLinus Torvalds } 41081da177e4SLinus Torvalds 41091da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41101da177e4SLinus Torvalds { 41111da177e4SLinus Torvalds int status = 0; 41121da177e4SLinus Torvalds 41131da177e4SLinus Torvalds time->tv_sec = 0; 41141da177e4SLinus Torvalds time->tv_nsec = 0; 41151da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 41161da177e4SLinus Torvalds return -EIO; 41171da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 41181da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4119409924e4STrond Myklebust if (status == 0) 4120409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 41211da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 41221da177e4SLinus Torvalds } 41233110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 41241da177e4SLinus Torvalds return status; 41251da177e4SLinus Torvalds } 41261da177e4SLinus Torvalds 412755b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 412855b6e774SRicardo Labiaga struct timespec *time) 412955b6e774SRicardo Labiaga { 413055b6e774SRicardo Labiaga int status = 0; 413155b6e774SRicardo Labiaga 413255b6e774SRicardo Labiaga time->tv_sec = 0; 413355b6e774SRicardo Labiaga time->tv_nsec = 0; 413455b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 413555b6e774SRicardo Labiaga return -EIO; 413655b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 413755b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 413855b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 413955b6e774SRicardo Labiaga } 414055b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 414155b6e774SRicardo Labiaga (long)time->tv_nsec); 414255b6e774SRicardo Labiaga return status; 414355b6e774SRicardo Labiaga } 414455b6e774SRicardo Labiaga 4145aa9c2669SDavid Quigley static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap, 4146aa9c2669SDavid Quigley struct nfs4_label *label) 4147aa9c2669SDavid Quigley { 4148aa9c2669SDavid Quigley uint32_t pi = 0; 4149aa9c2669SDavid Quigley uint32_t lfs = 0; 4150aa9c2669SDavid Quigley __u32 len; 4151aa9c2669SDavid Quigley __be32 *p; 4152aa9c2669SDavid Quigley int status = 0; 4153aa9c2669SDavid Quigley 4154aa9c2669SDavid Quigley if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U))) 4155aa9c2669SDavid Quigley return -EIO; 4156aa9c2669SDavid Quigley if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) { 4157aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4158aa9c2669SDavid Quigley if (unlikely(!p)) 4159aa9c2669SDavid Quigley goto out_overflow; 4160aa9c2669SDavid Quigley lfs = be32_to_cpup(p++); 4161aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4162aa9c2669SDavid Quigley if (unlikely(!p)) 4163aa9c2669SDavid Quigley goto out_overflow; 4164aa9c2669SDavid Quigley pi = be32_to_cpup(p++); 4165aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4166aa9c2669SDavid Quigley if (unlikely(!p)) 4167aa9c2669SDavid Quigley goto out_overflow; 4168aa9c2669SDavid Quigley len = be32_to_cpup(p++); 4169aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, len); 4170aa9c2669SDavid Quigley if (unlikely(!p)) 4171aa9c2669SDavid Quigley goto out_overflow; 4172aa9c2669SDavid Quigley if (len < NFS4_MAXLABELLEN) { 4173aa9c2669SDavid Quigley if (label) { 4174aa9c2669SDavid Quigley memcpy(label->label, p, len); 4175aa9c2669SDavid Quigley label->len = len; 4176aa9c2669SDavid Quigley label->pi = pi; 4177aa9c2669SDavid Quigley label->lfs = lfs; 4178aa9c2669SDavid Quigley status = NFS_ATTR_FATTR_V4_SECURITY_LABEL; 4179aa9c2669SDavid Quigley } 4180aa9c2669SDavid Quigley bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL; 4181aa9c2669SDavid Quigley } else 4182aa9c2669SDavid Quigley printk(KERN_WARNING "%s: label too long (%u)!\n", 4183aa9c2669SDavid Quigley __func__, len); 4184aa9c2669SDavid Quigley } 4185aa9c2669SDavid Quigley if (label && label->label) 4186aa9c2669SDavid Quigley dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__, 4187aa9c2669SDavid Quigley (char *)label->label, label->len, label->pi, label->lfs); 4188aa9c2669SDavid Quigley return status; 4189aa9c2669SDavid Quigley 4190aa9c2669SDavid Quigley out_overflow: 4191aa9c2669SDavid Quigley print_overflow_msg(__func__, xdr); 4192aa9c2669SDavid Quigley return -EIO; 4193aa9c2669SDavid Quigley } 4194aa9c2669SDavid Quigley 41951da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41961da177e4SLinus Torvalds { 41971da177e4SLinus Torvalds int status = 0; 41981da177e4SLinus Torvalds 41991da177e4SLinus Torvalds time->tv_sec = 0; 42001da177e4SLinus Torvalds time->tv_nsec = 0; 42011da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 42021da177e4SLinus Torvalds return -EIO; 42031da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 42041da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4205409924e4STrond Myklebust if (status == 0) 4206409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 42071da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 42081da177e4SLinus Torvalds } 42093110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 42101da177e4SLinus Torvalds return status; 42111da177e4SLinus Torvalds } 42121da177e4SLinus Torvalds 4213256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 42141da177e4SLinus Torvalds { 42151da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4216256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 42171da177e4SLinus Torvalds 42181da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4219fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4220fe82a183SChuck Lever "%u %c %u\n", 42213110ff80SHarvey Harrison __func__, 42221da177e4SLinus Torvalds attrwords << 2, 42231da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 42241da177e4SLinus Torvalds nwords << 2); 42251da177e4SLinus Torvalds return -EIO; 42261da177e4SLinus Torvalds } 42271da177e4SLinus Torvalds return 0; 42281da177e4SLinus Torvalds } 42291da177e4SLinus Torvalds 42301da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42311da177e4SLinus Torvalds { 42328687b63aSAl Viro __be32 *p; 42331da177e4SLinus Torvalds 4234c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4235c0eae66eSBenny Halevy if (unlikely(!p)) 4236c0eae66eSBenny Halevy goto out_overflow; 42376f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 42383ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4239cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 42401da177e4SLinus Torvalds return 0; 4241c0eae66eSBenny Halevy out_overflow: 4242c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4243c0eae66eSBenny Halevy return -EIO; 42441da177e4SLinus Torvalds } 42451da177e4SLinus Torvalds 42466168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 42471da177e4SLinus Torvalds { 42488687b63aSAl Viro __be32 *p; 42491da177e4SLinus Torvalds uint32_t supp, acc; 42501da177e4SLinus Torvalds int status; 42511da177e4SLinus Torvalds 42521da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 42531da177e4SLinus Torvalds if (status) 42541da177e4SLinus Torvalds return status; 4255c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4256c0eae66eSBenny Halevy if (unlikely(!p)) 4257c0eae66eSBenny Halevy goto out_overflow; 42586f723f77SBenny Halevy supp = be32_to_cpup(p++); 4259cccddf4fSBenny Halevy acc = be32_to_cpup(p); 42606168f62cSWeston Andros Adamson *supported = supp; 42616168f62cSWeston Andros Adamson *access = acc; 42621da177e4SLinus Torvalds return 0; 4263c0eae66eSBenny Halevy out_overflow: 4264c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4265c0eae66eSBenny Halevy return -EIO; 42661da177e4SLinus Torvalds } 42671da177e4SLinus Torvalds 426807d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 42691da177e4SLinus Torvalds { 4270ab6e9aafSTrond Myklebust ssize_t ret = xdr_stream_decode_opaque_fixed(xdr, buf, len); 4271ab6e9aafSTrond Myklebust if (unlikely(ret < 0)) { 427207d30434SBenny Halevy print_overflow_msg(__func__, xdr); 427307d30434SBenny Halevy return -EIO; 427407d30434SBenny Halevy } 4275ab6e9aafSTrond Myklebust return 0; 4276ab6e9aafSTrond Myklebust } 427707d30434SBenny Halevy 427807d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 427907d30434SBenny Halevy { 42802d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 42811da177e4SLinus Torvalds } 42821da177e4SLinus Torvalds 428393b717fdSTrond Myklebust static int decode_open_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 428493b717fdSTrond Myklebust { 428593b717fdSTrond Myklebust stateid->type = NFS4_OPEN_STATEID_TYPE; 428693b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 428793b717fdSTrond Myklebust } 428893b717fdSTrond Myklebust 428993b717fdSTrond Myklebust static int decode_lock_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 429093b717fdSTrond Myklebust { 429193b717fdSTrond Myklebust stateid->type = NFS4_LOCK_STATEID_TYPE; 429293b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 429393b717fdSTrond Myklebust } 429493b717fdSTrond Myklebust 429593b717fdSTrond Myklebust static int decode_delegation_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 429693b717fdSTrond Myklebust { 429793b717fdSTrond Myklebust stateid->type = NFS4_DELEGATION_STATEID_TYPE; 429893b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 429993b717fdSTrond Myklebust } 430093b717fdSTrond Myklebust 43011da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 43021da177e4SLinus Torvalds { 43031da177e4SLinus Torvalds int status; 43041da177e4SLinus Torvalds 43051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4306c1d51931STrond Myklebust if (status != -EIO) 4307c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 430807d30434SBenny Halevy if (!status) 430993b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 43101da177e4SLinus Torvalds return status; 43111da177e4SLinus Torvalds } 43121da177e4SLinus Torvalds 4313db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4314db942bbdSBenny Halevy { 4315cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 43161da177e4SLinus Torvalds } 43171da177e4SLinus Torvalds 43182f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 43192f2c63bcSTrond Myklebust { 43202f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 43212f2c63bcSTrond Myklebust } 43222f2c63bcSTrond Myklebust 43230b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 43241da177e4SLinus Torvalds { 43251da177e4SLinus Torvalds int status; 43261da177e4SLinus Torvalds 43271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4328db942bbdSBenny Halevy if (!status) 43292f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 43301da177e4SLinus Torvalds return status; 43311da177e4SLinus Torvalds } 43321da177e4SLinus Torvalds 43331da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43341da177e4SLinus Torvalds { 43358687b63aSAl Viro __be32 *p; 43361da177e4SLinus Torvalds uint32_t bmlen; 43371da177e4SLinus Torvalds int status; 43381da177e4SLinus Torvalds 43391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 43401da177e4SLinus Torvalds if (status) 43411da177e4SLinus Torvalds return status; 43421da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 43431da177e4SLinus Torvalds return status; 4344c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4345c0eae66eSBenny Halevy if (unlikely(!p)) 4346c0eae66eSBenny Halevy goto out_overflow; 4347cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4348c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4349c0eae66eSBenny Halevy if (likely(p)) 43501da177e4SLinus Torvalds return 0; 4351c0eae66eSBenny Halevy out_overflow: 4352c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4353c0eae66eSBenny Halevy return -EIO; 43541da177e4SLinus Torvalds } 43551da177e4SLinus Torvalds 43561da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 43571da177e4SLinus Torvalds { 4358256e48bbSTrond Myklebust unsigned int savep; 4359dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43601da177e4SLinus Torvalds int status; 43611da177e4SLinus Torvalds 43621da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43631da177e4SLinus Torvalds goto xdr_error; 43641da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43651da177e4SLinus Torvalds goto xdr_error; 43661da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43671da177e4SLinus Torvalds goto xdr_error; 43681da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 43691da177e4SLinus Torvalds goto xdr_error; 4370264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4371264e6351SChuck Lever &res->fh_expire_type)) != 0) 4372264e6351SChuck Lever goto xdr_error; 43731da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 43741da177e4SLinus Torvalds goto xdr_error; 43751da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 43761da177e4SLinus Torvalds goto xdr_error; 43771da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 43781da177e4SLinus Torvalds goto xdr_error; 43798c61282fSKinglong Mee if ((status = decode_attr_exclcreat_supported(xdr, bitmap, 43808c61282fSKinglong Mee res->exclcreat_bitmask)) != 0) 43818c61282fSKinglong Mee goto xdr_error; 43821da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43831da177e4SLinus Torvalds xdr_error: 43843110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43851da177e4SLinus Torvalds return status; 43861da177e4SLinus Torvalds } 43871da177e4SLinus Torvalds 43881da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 43891da177e4SLinus Torvalds { 4390256e48bbSTrond Myklebust unsigned int savep; 4391dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43921da177e4SLinus Torvalds int status; 43931da177e4SLinus Torvalds 43941da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43951da177e4SLinus Torvalds goto xdr_error; 43961da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43971da177e4SLinus Torvalds goto xdr_error; 43981da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43991da177e4SLinus Torvalds goto xdr_error; 44001da177e4SLinus Torvalds 44011da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 44021da177e4SLinus Torvalds goto xdr_error; 44031da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 44041da177e4SLinus Torvalds goto xdr_error; 44051da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 44061da177e4SLinus Torvalds goto xdr_error; 44071ca843a2SAndreas Gruenbacher 44081ca843a2SAndreas Gruenbacher status = -EIO; 44091ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 44101ca843a2SAndreas Gruenbacher goto xdr_error; 44111ca843a2SAndreas Gruenbacher 44121da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 44131da177e4SLinus Torvalds goto xdr_error; 44141da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 44151da177e4SLinus Torvalds goto xdr_error; 44161da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 44171da177e4SLinus Torvalds goto xdr_error; 44181da177e4SLinus Torvalds 44191da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44201da177e4SLinus Torvalds xdr_error: 44213110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44221da177e4SLinus Torvalds return status; 44231da177e4SLinus Torvalds } 44241da177e4SLinus Torvalds 44251da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 44261da177e4SLinus Torvalds { 4427256e48bbSTrond Myklebust unsigned int savep; 4428dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 44291da177e4SLinus Torvalds int status; 44301da177e4SLinus Torvalds 44311da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 44321da177e4SLinus Torvalds goto xdr_error; 44331da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 44341da177e4SLinus Torvalds goto xdr_error; 44351da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 44361da177e4SLinus Torvalds goto xdr_error; 44371da177e4SLinus Torvalds 44381da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 44391da177e4SLinus Torvalds goto xdr_error; 44401da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 44411da177e4SLinus Torvalds goto xdr_error; 44421da177e4SLinus Torvalds 44431da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44441da177e4SLinus Torvalds xdr_error: 44453110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44461da177e4SLinus Torvalds return status; 44471da177e4SLinus Torvalds } 44481da177e4SLinus Torvalds 444988034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 445088034c3dSAndy Adamson uint32_t *bitmap, 445188034c3dSAndy Adamson uint64_t *res, 445288034c3dSAndy Adamson uint32_t hint_bit) 445388034c3dSAndy Adamson { 445488034c3dSAndy Adamson __be32 *p; 445588034c3dSAndy Adamson 445688034c3dSAndy Adamson *res = 0; 445788034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 445888034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 445988034c3dSAndy Adamson if (unlikely(!p)) 446088034c3dSAndy Adamson goto out_overflow; 446188034c3dSAndy Adamson xdr_decode_hyper(p, res); 446288034c3dSAndy Adamson } 446388034c3dSAndy Adamson return 0; 446488034c3dSAndy Adamson out_overflow: 446588034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 446688034c3dSAndy Adamson return -EIO; 446788034c3dSAndy Adamson } 446888034c3dSAndy Adamson 446988034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 447088034c3dSAndy Adamson struct nfs4_threshold *res) 447188034c3dSAndy Adamson { 4472256e48bbSTrond Myklebust __be32 *p; 4473256e48bbSTrond Myklebust unsigned int savep; 447488034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 447588034c3dSAndy Adamson int status; 447688034c3dSAndy Adamson 447788034c3dSAndy Adamson /* layout type */ 447888034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 447988034c3dSAndy Adamson if (unlikely(!p)) { 448088034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 448188034c3dSAndy Adamson return -EIO; 448288034c3dSAndy Adamson } 448388034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 448488034c3dSAndy Adamson 448588034c3dSAndy Adamson /* thi_hintset bitmap */ 448688034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 448788034c3dSAndy Adamson if (status < 0) 448888034c3dSAndy Adamson goto xdr_error; 448988034c3dSAndy Adamson 449088034c3dSAndy Adamson /* thi_hintlist length */ 449188034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 449288034c3dSAndy Adamson if (status < 0) 449388034c3dSAndy Adamson goto xdr_error; 449488034c3dSAndy Adamson /* thi_hintlist */ 449588034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 449688034c3dSAndy Adamson if (status < 0) 449788034c3dSAndy Adamson goto xdr_error; 449888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 449988034c3dSAndy Adamson if (status < 0) 450088034c3dSAndy Adamson goto xdr_error; 450188034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 450288034c3dSAndy Adamson THRESHOLD_RD_IO); 450388034c3dSAndy Adamson if (status < 0) 450488034c3dSAndy Adamson goto xdr_error; 450588034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 450688034c3dSAndy Adamson THRESHOLD_WR_IO); 450788034c3dSAndy Adamson if (status < 0) 450888034c3dSAndy Adamson goto xdr_error; 450988034c3dSAndy Adamson 451088034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 451188034c3dSAndy Adamson res->bm = bitmap[0]; 451288034c3dSAndy Adamson 451388034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 451488034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 451588034c3dSAndy Adamson res->wr_io_sz); 451688034c3dSAndy Adamson xdr_error: 451788034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 451888034c3dSAndy Adamson return status; 451988034c3dSAndy Adamson } 452088034c3dSAndy Adamson 452188034c3dSAndy Adamson /* 452288034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 452388034c3dSAndy Adamson */ 452488034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 452588034c3dSAndy Adamson uint32_t *bitmap, 452688034c3dSAndy Adamson struct nfs4_threshold *res) 452788034c3dSAndy Adamson { 452888034c3dSAndy Adamson __be32 *p; 452988034c3dSAndy Adamson int status = 0; 453088034c3dSAndy Adamson uint32_t num; 453188034c3dSAndy Adamson 453288034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 453388034c3dSAndy Adamson return -EIO; 4534029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 45351549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 45361549210fSTrond Myklebust if (unlikely(res == NULL)) 45371549210fSTrond Myklebust return -EREMOTEIO; 453888034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 453988034c3dSAndy Adamson if (unlikely(!p)) 454088034c3dSAndy Adamson goto out_overflow; 454188034c3dSAndy Adamson num = be32_to_cpup(p); 454288034c3dSAndy Adamson if (num == 0) 454388034c3dSAndy Adamson return 0; 454488034c3dSAndy Adamson if (num > 1) 454588034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 454688034c3dSAndy Adamson "drivers per filesystem not supported\n", 454788034c3dSAndy Adamson __func__); 454888034c3dSAndy Adamson 454988034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4550029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 455188034c3dSAndy Adamson } 455288034c3dSAndy Adamson return status; 455388034c3dSAndy Adamson out_overflow: 455488034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 455588034c3dSAndy Adamson return -EIO; 455688034c3dSAndy Adamson } 455788034c3dSAndy Adamson 4558ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4559ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 4560aa9c2669SDavid Quigley struct nfs4_fs_locations *fs_loc, struct nfs4_label *label, 45616926afd1STrond Myklebust const struct nfs_server *server) 45621da177e4SLinus Torvalds { 4563bca79478STrond Myklebust int status; 4564bca79478STrond Myklebust umode_t fmode = 0; 4565ae42c70aSBryan Schumaker uint32_t type; 4566ee7b75fcSTrond Myklebust int32_t err; 45671da177e4SLinus Torvalds 4568f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4569f26c7a78STrond Myklebust if (status < 0) 45701da177e4SLinus Torvalds goto xdr_error; 4571409924e4STrond Myklebust fattr->mode = 0; 4572409924e4STrond Myklebust if (status != 0) { 4573409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4574409924e4STrond Myklebust fattr->valid |= status; 4575409924e4STrond Myklebust } 45761da177e4SLinus Torvalds 4577f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4578f26c7a78STrond Myklebust if (status < 0) 45791da177e4SLinus Torvalds goto xdr_error; 4580409924e4STrond Myklebust fattr->valid |= status; 4581f26c7a78STrond Myklebust 4582f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4583f26c7a78STrond Myklebust if (status < 0) 45841da177e4SLinus Torvalds goto xdr_error; 4585409924e4STrond Myklebust fattr->valid |= status; 4586f26c7a78STrond Myklebust 4587f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4588f26c7a78STrond Myklebust if (status < 0) 45891da177e4SLinus Torvalds goto xdr_error; 4590409924e4STrond Myklebust fattr->valid |= status; 4591f26c7a78STrond Myklebust 4592ee7b75fcSTrond Myklebust err = 0; 4593ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4594ae42c70aSBryan Schumaker if (status < 0) 4595ae42c70aSBryan Schumaker goto xdr_error; 4596ae42c70aSBryan Schumaker 4597ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4598ae42c70aSBryan Schumaker if (status < 0) 4599ae42c70aSBryan Schumaker goto xdr_error; 4600ae42c70aSBryan Schumaker 4601f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4602f26c7a78STrond Myklebust if (status < 0) 46031da177e4SLinus Torvalds goto xdr_error; 4604409924e4STrond Myklebust fattr->valid |= status; 4605f26c7a78STrond Myklebust 46068b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4607f26c7a78STrond Myklebust if (status < 0) 4608683b57b4STrond Myklebust goto xdr_error; 4609409924e4STrond Myklebust fattr->valid |= status; 4610f26c7a78STrond Myklebust 46111ca843a2SAndreas Gruenbacher status = -EIO; 46121ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 46131ca843a2SAndreas Gruenbacher goto xdr_error; 46141ca843a2SAndreas Gruenbacher 4615f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4616f26c7a78STrond Myklebust if (status < 0) 46171da177e4SLinus Torvalds goto xdr_error; 4618409924e4STrond Myklebust if (status != 0) { 46191da177e4SLinus Torvalds fattr->mode |= fmode; 4620409924e4STrond Myklebust fattr->valid |= status; 4621409924e4STrond Myklebust } 4622f26c7a78STrond Myklebust 4623f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4624f26c7a78STrond Myklebust if (status < 0) 46251da177e4SLinus Torvalds goto xdr_error; 4626409924e4STrond Myklebust fattr->valid |= status; 4627f26c7a78STrond Myklebust 46286926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4629f26c7a78STrond Myklebust if (status < 0) 46301da177e4SLinus Torvalds goto xdr_error; 4631409924e4STrond Myklebust fattr->valid |= status; 4632f26c7a78STrond Myklebust 46336926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4634f26c7a78STrond Myklebust if (status < 0) 46351da177e4SLinus Torvalds goto xdr_error; 4636409924e4STrond Myklebust fattr->valid |= status; 4637f26c7a78STrond Myklebust 4638f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4639f26c7a78STrond Myklebust if (status < 0) 46401da177e4SLinus Torvalds goto xdr_error; 4641409924e4STrond Myklebust fattr->valid |= status; 4642f26c7a78STrond Myklebust 4643f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4644f26c7a78STrond Myklebust if (status < 0) 46451da177e4SLinus Torvalds goto xdr_error; 4646409924e4STrond Myklebust fattr->valid |= status; 4647f26c7a78STrond Myklebust 4648f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4649f26c7a78STrond Myklebust if (status < 0) 46501da177e4SLinus Torvalds goto xdr_error; 4651409924e4STrond Myklebust fattr->valid |= status; 4652f26c7a78STrond Myklebust 4653f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4654f26c7a78STrond Myklebust if (status < 0) 46551da177e4SLinus Torvalds goto xdr_error; 4656409924e4STrond Myklebust fattr->valid |= status; 4657f26c7a78STrond Myklebust 4658f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4659f26c7a78STrond Myklebust if (status < 0) 46601da177e4SLinus Torvalds goto xdr_error; 4661409924e4STrond Myklebust fattr->valid |= status; 4662f26c7a78STrond Myklebust 466328331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4664f26c7a78STrond Myklebust if (status < 0) 466599baf625SManoj Naik goto xdr_error; 4666409924e4STrond Myklebust fattr->valid |= status; 4667f26c7a78STrond Myklebust 46681ca843a2SAndreas Gruenbacher status = -EIO; 46691ca843a2SAndreas Gruenbacher if (unlikely(bitmap[1])) 46701ca843a2SAndreas Gruenbacher goto xdr_error; 46711ca843a2SAndreas Gruenbacher 467288034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 467388034c3dSAndy Adamson if (status < 0) 467488034c3dSAndy Adamson goto xdr_error; 467588034c3dSAndy Adamson 4676aa9c2669SDavid Quigley if (label) { 4677aa9c2669SDavid Quigley status = decode_attr_security_label(xdr, bitmap, label); 4678aa9c2669SDavid Quigley if (status < 0) 4679aa9c2669SDavid Quigley goto xdr_error; 4680aa9c2669SDavid Quigley fattr->valid |= status; 4681aa9c2669SDavid Quigley } 4682aa9c2669SDavid Quigley 4683ae42c70aSBryan Schumaker xdr_error: 4684ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4685ae42c70aSBryan Schumaker return status; 4686ae42c70aSBryan Schumaker } 4687ae42c70aSBryan Schumaker 4688ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 46898b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 4690aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4691ae42c70aSBryan Schumaker { 4692256e48bbSTrond Myklebust unsigned int savep; 4693ae42c70aSBryan Schumaker uint32_t attrlen, 4694dae100c2SFred Isaman bitmap[3] = {0}; 4695ae42c70aSBryan Schumaker int status; 4696ae42c70aSBryan Schumaker 4697ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4698ae42c70aSBryan Schumaker if (status < 0) 4699ae42c70aSBryan Schumaker goto xdr_error; 4700ae42c70aSBryan Schumaker 4701ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4702ae42c70aSBryan Schumaker if (status < 0) 4703ae42c70aSBryan Schumaker goto xdr_error; 4704ae42c70aSBryan Schumaker 4705ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4706ae42c70aSBryan Schumaker if (status < 0) 4707ae42c70aSBryan Schumaker goto xdr_error; 4708ae42c70aSBryan Schumaker 4709aa9c2669SDavid Quigley status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, 4710aa9c2669SDavid Quigley label, server); 4711ae42c70aSBryan Schumaker if (status < 0) 4712ae42c70aSBryan Schumaker goto xdr_error; 4713ae42c70aSBryan Schumaker 4714f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 47151da177e4SLinus Torvalds xdr_error: 47163110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 47171da177e4SLinus Torvalds return status; 47181da177e4SLinus Torvalds } 47191da177e4SLinus Torvalds 4720aa9c2669SDavid Quigley static int decode_getfattr_label(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4721aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4722aa9c2669SDavid Quigley { 4723aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, label, server); 4724aa9c2669SDavid Quigley } 4725aa9c2669SDavid Quigley 4726ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 47276926afd1STrond Myklebust const struct nfs_server *server) 4728ae42c70aSBryan Schumaker { 4729aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, NULL, server); 4730ae42c70aSBryan Schumaker } 47311da177e4SLinus Torvalds 4732504913fbSAndy Adamson /* 47333132e49eSJeff Layton * Decode potentially multiple layout types. 4734504913fbSAndy Adamson */ 47353132e49eSJeff Layton static int decode_pnfs_layout_types(struct xdr_stream *xdr, 4736ca440c38SJeff Layton struct nfs_fsinfo *fsinfo) 4737504913fbSAndy Adamson { 4738b8a8a0ddSTrond Myklebust __be32 *p; 4739ca440c38SJeff Layton uint32_t i; 4740504913fbSAndy Adamson 4741504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4742504913fbSAndy Adamson if (unlikely(!p)) 4743504913fbSAndy Adamson goto out_overflow; 4744ca440c38SJeff Layton fsinfo->nlayouttypes = be32_to_cpup(p); 4745504913fbSAndy Adamson 4746504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4747ca440c38SJeff Layton if (fsinfo->nlayouttypes == 0) 4748504913fbSAndy Adamson return 0; 4749504913fbSAndy Adamson 4750504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4751ca440c38SJeff Layton p = xdr_inline_decode(xdr, fsinfo->nlayouttypes * 4); 4752504913fbSAndy Adamson if (unlikely(!p)) 4753504913fbSAndy Adamson goto out_overflow; 4754ca440c38SJeff Layton 4755ca440c38SJeff Layton /* If we get too many, then just cap it at the max */ 4756ca440c38SJeff Layton if (fsinfo->nlayouttypes > NFS_MAX_LAYOUT_TYPES) { 4757ca440c38SJeff Layton printk(KERN_INFO "NFS: %s: Warning: Too many (%u) pNFS layout types\n", 4758ca440c38SJeff Layton __func__, fsinfo->nlayouttypes); 4759ca440c38SJeff Layton fsinfo->nlayouttypes = NFS_MAX_LAYOUT_TYPES; 4760ca440c38SJeff Layton } 4761ca440c38SJeff Layton 4762ca440c38SJeff Layton for(i = 0; i < fsinfo->nlayouttypes; ++i) 4763ca440c38SJeff Layton fsinfo->layouttype[i] = be32_to_cpup(p++); 4764504913fbSAndy Adamson return 0; 4765504913fbSAndy Adamson out_overflow: 4766504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4767504913fbSAndy Adamson return -EIO; 4768504913fbSAndy Adamson } 4769504913fbSAndy Adamson 4770504913fbSAndy Adamson /* 4771504913fbSAndy Adamson * The type of file system exported. 4772504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4773504913fbSAndy Adamson */ 4774504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4775ca440c38SJeff Layton struct nfs_fsinfo *fsinfo) 4776504913fbSAndy Adamson { 4777504913fbSAndy Adamson int status = 0; 4778504913fbSAndy Adamson 4779504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4780504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4781504913fbSAndy Adamson return -EIO; 4782504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4783ca440c38SJeff Layton status = decode_pnfs_layout_types(xdr, fsinfo); 4784504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 47853132e49eSJeff Layton } 4786504913fbSAndy Adamson return status; 4787504913fbSAndy Adamson } 4788504913fbSAndy Adamson 4789dae100c2SFred Isaman /* 4790dae100c2SFred Isaman * The prefered block size for layout directed io 4791dae100c2SFred Isaman */ 4792dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4793dae100c2SFred Isaman uint32_t *res) 4794dae100c2SFred Isaman { 4795dae100c2SFred Isaman __be32 *p; 4796dae100c2SFred Isaman 4797dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4798dae100c2SFred Isaman *res = 0; 4799dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4800dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4801dae100c2SFred Isaman if (unlikely(!p)) { 4802dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4803dae100c2SFred Isaman return -EIO; 4804dae100c2SFred Isaman } 4805dae100c2SFred Isaman *res = be32_to_cpup(p); 4806dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4807dae100c2SFred Isaman } 4808dae100c2SFred Isaman return 0; 4809dae100c2SFred Isaman } 4810dae100c2SFred Isaman 48112a92ee92SPeng Tao /* 48122a92ee92SPeng Tao * The granularity of a CLONE operation. 48132a92ee92SPeng Tao */ 48142a92ee92SPeng Tao static int decode_attr_clone_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 48152a92ee92SPeng Tao uint32_t *res) 48162a92ee92SPeng Tao { 48172a92ee92SPeng Tao __be32 *p; 48182a92ee92SPeng Tao 48192a92ee92SPeng Tao dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 48202a92ee92SPeng Tao *res = 0; 48212a92ee92SPeng Tao if (bitmap[2] & FATTR4_WORD2_CLONE_BLKSIZE) { 48222a92ee92SPeng Tao p = xdr_inline_decode(xdr, 4); 48232a92ee92SPeng Tao if (unlikely(!p)) { 48242a92ee92SPeng Tao print_overflow_msg(__func__, xdr); 48252a92ee92SPeng Tao return -EIO; 48262a92ee92SPeng Tao } 48272a92ee92SPeng Tao *res = be32_to_cpup(p); 48282a92ee92SPeng Tao bitmap[2] &= ~FATTR4_WORD2_CLONE_BLKSIZE; 48292a92ee92SPeng Tao } 48302a92ee92SPeng Tao return 0; 48312a92ee92SPeng Tao } 48322a92ee92SPeng Tao 48331da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 48341da177e4SLinus Torvalds { 4835256e48bbSTrond Myklebust unsigned int savep; 4836dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 48371da177e4SLinus Torvalds int status; 48381da177e4SLinus Torvalds 48391da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 48401da177e4SLinus Torvalds goto xdr_error; 48411da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 48421da177e4SLinus Torvalds goto xdr_error; 48431da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 48441da177e4SLinus Torvalds goto xdr_error; 48451da177e4SLinus Torvalds 48461da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 48471da177e4SLinus Torvalds 48481da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 48491da177e4SLinus Torvalds goto xdr_error; 48501da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 48511da177e4SLinus Torvalds goto xdr_error; 48521da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 48531da177e4SLinus Torvalds goto xdr_error; 48541da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 48551da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 48561da177e4SLinus Torvalds goto xdr_error; 48571da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 48581ca843a2SAndreas Gruenbacher 48591ca843a2SAndreas Gruenbacher status = -EIO; 48601ca843a2SAndreas Gruenbacher if (unlikely(bitmap[0])) 48611ca843a2SAndreas Gruenbacher goto xdr_error; 48621ca843a2SAndreas Gruenbacher 486355b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 486455b6e774SRicardo Labiaga if (status != 0) 486555b6e774SRicardo Labiaga goto xdr_error; 4866ca440c38SJeff Layton status = decode_attr_pnfstype(xdr, bitmap, fsinfo); 4867504913fbSAndy Adamson if (status != 0) 4868504913fbSAndy Adamson goto xdr_error; 48691ca843a2SAndreas Gruenbacher 48701ca843a2SAndreas Gruenbacher status = -EIO; 48711ca843a2SAndreas Gruenbacher if (unlikely(bitmap[1])) 48721ca843a2SAndreas Gruenbacher goto xdr_error; 48731ca843a2SAndreas Gruenbacher 4874dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4875dae100c2SFred Isaman if (status) 4876dae100c2SFred Isaman goto xdr_error; 48772a92ee92SPeng Tao status = decode_attr_clone_blksize(xdr, bitmap, &fsinfo->clone_blksize); 48782a92ee92SPeng Tao if (status) 48792a92ee92SPeng Tao goto xdr_error; 48801da177e4SLinus Torvalds 48811da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 48821da177e4SLinus Torvalds xdr_error: 48833110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 48841da177e4SLinus Torvalds return status; 48851da177e4SLinus Torvalds } 48861da177e4SLinus Torvalds 48871da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 48881da177e4SLinus Torvalds { 48898687b63aSAl Viro __be32 *p; 48901da177e4SLinus Torvalds uint32_t len; 48911da177e4SLinus Torvalds int status; 48921da177e4SLinus Torvalds 48939936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 48949936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 48959936781dSTrond Myklebust 48961da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 48971da177e4SLinus Torvalds if (status) 48981da177e4SLinus Torvalds return status; 48991da177e4SLinus Torvalds 4900c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4901c0eae66eSBenny Halevy if (unlikely(!p)) 4902c0eae66eSBenny Halevy goto out_overflow; 4903cccddf4fSBenny Halevy len = be32_to_cpup(p); 49041da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 49051da177e4SLinus Torvalds return -EIO; 49061da177e4SLinus Torvalds fh->size = len; 4907c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4908c0eae66eSBenny Halevy if (unlikely(!p)) 4909c0eae66eSBenny Halevy goto out_overflow; 491099398d06SBenny Halevy memcpy(fh->data, p, len); 49111da177e4SLinus Torvalds return 0; 4912c0eae66eSBenny Halevy out_overflow: 4913c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4914c0eae66eSBenny Halevy return -EIO; 49151da177e4SLinus Torvalds } 49161da177e4SLinus Torvalds 49171da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 49181da177e4SLinus Torvalds { 49191da177e4SLinus Torvalds int status; 49201da177e4SLinus Torvalds 49211da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 49221da177e4SLinus Torvalds if (status) 49231da177e4SLinus Torvalds return status; 49241da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 49251da177e4SLinus Torvalds } 49261da177e4SLinus Torvalds 49271da177e4SLinus Torvalds /* 49281da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 49291da177e4SLinus Torvalds */ 4930911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 49311da177e4SLinus Torvalds { 4932911d1aafSTrond Myklebust uint64_t offset, length, clientid; 49338687b63aSAl Viro __be32 *p; 4934911d1aafSTrond Myklebust uint32_t namelen, type; 49351da177e4SLinus Torvalds 4936babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4937c0eae66eSBenny Halevy if (unlikely(!p)) 4938c0eae66eSBenny Halevy goto out_overflow; 4939babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 49403ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4941babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4942babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4943911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4944911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4945911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4946911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4947911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4948911d1aafSTrond Myklebust if (type & 1) 4949911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4950911d1aafSTrond Myklebust fl->fl_pid = 0; 4951911d1aafSTrond Myklebust } 4952babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4953babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4954babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4955c0eae66eSBenny Halevy if (likely(p)) 49561da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4957c0eae66eSBenny Halevy out_overflow: 4958c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4959c0eae66eSBenny Halevy return -EIO; 49601da177e4SLinus Torvalds } 49611da177e4SLinus Torvalds 4962911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 49631da177e4SLinus Torvalds { 49641da177e4SLinus Torvalds int status; 49651da177e4SLinus Torvalds 49661da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4967c1d51931STrond Myklebust if (status == -EIO) 4968c1d51931STrond Myklebust goto out; 49691da177e4SLinus Torvalds if (status == 0) { 497093b717fdSTrond Myklebust status = decode_lock_stateid(xdr, &res->stateid); 497107d30434SBenny Halevy if (unlikely(status)) 497207d30434SBenny Halevy goto out; 49731da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4974c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4975c1d51931STrond Myklebust if (res->open_seqid != NULL) 4976c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4977c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4978c1d51931STrond Myklebust out: 49791da177e4SLinus Torvalds return status; 49801da177e4SLinus Torvalds } 49811da177e4SLinus Torvalds 4982911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 49831da177e4SLinus Torvalds { 49841da177e4SLinus Torvalds int status; 49851da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 49861da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4987911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 49881da177e4SLinus Torvalds return status; 49891da177e4SLinus Torvalds } 49901da177e4SLinus Torvalds 4991911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 49921da177e4SLinus Torvalds { 49931da177e4SLinus Torvalds int status; 49941da177e4SLinus Torvalds 49951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4996c1d51931STrond Myklebust if (status != -EIO) 4997c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 499807d30434SBenny Halevy if (status == 0) 499993b717fdSTrond Myklebust status = decode_lock_stateid(xdr, &res->stateid); 50001da177e4SLinus Torvalds return status; 50011da177e4SLinus Torvalds } 50021da177e4SLinus Torvalds 5003d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 5004d3c7b7ccSTrond Myklebust { 5005d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 5006d3c7b7ccSTrond Myklebust } 5007d3c7b7ccSTrond Myklebust 50081da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 50091da177e4SLinus Torvalds { 50101da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 50111da177e4SLinus Torvalds } 50121da177e4SLinus Torvalds 50131da177e4SLinus Torvalds /* This is too sick! */ 50147d160a6cSTrond Myklebust static int decode_space_limit(struct xdr_stream *xdr, 50157d160a6cSTrond Myklebust unsigned long *pagemod_limit) 50161da177e4SLinus Torvalds { 50178687b63aSAl Viro __be32 *p; 50181da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 50197d160a6cSTrond Myklebust u64 maxsize = 0; 50201da177e4SLinus Torvalds 5021c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5022c0eae66eSBenny Halevy if (unlikely(!p)) 5023c0eae66eSBenny Halevy goto out_overflow; 50246f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 50251da177e4SLinus Torvalds switch (limit_type) { 50267d160a6cSTrond Myklebust case NFS4_LIMIT_SIZE: 50277d160a6cSTrond Myklebust xdr_decode_hyper(p, &maxsize); 50281da177e4SLinus Torvalds break; 50297d160a6cSTrond Myklebust case NFS4_LIMIT_BLOCKS: 50306f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 5031cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 50327d160a6cSTrond Myklebust maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 50331da177e4SLinus Torvalds } 503409cbfeafSKirill A. Shutemov maxsize >>= PAGE_SHIFT; 50357d160a6cSTrond Myklebust *pagemod_limit = min_t(u64, maxsize, ULONG_MAX); 50361da177e4SLinus Torvalds return 0; 5037c0eae66eSBenny Halevy out_overflow: 5038c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5039c0eae66eSBenny Halevy return -EIO; 50401da177e4SLinus Torvalds } 50411da177e4SLinus Torvalds 50426ae37339STrond Myklebust static int decode_rw_delegation(struct xdr_stream *xdr, 50436ae37339STrond Myklebust uint32_t delegation_type, 50446ae37339STrond Myklebust struct nfs_openres *res) 50451da177e4SLinus Torvalds { 50468687b63aSAl Viro __be32 *p; 504707d30434SBenny Halevy int status; 50481da177e4SLinus Torvalds 504993b717fdSTrond Myklebust status = decode_delegation_stateid(xdr, &res->delegation); 505007d30434SBenny Halevy if (unlikely(status)) 505107d30434SBenny Halevy return status; 5052c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5053c0eae66eSBenny Halevy if (unlikely(!p)) 5054c0eae66eSBenny Halevy goto out_overflow; 5055cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 505605d564feSAndy Adamson 50571da177e4SLinus Torvalds switch (delegation_type) { 50581da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 50591da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 50601da177e4SLinus Torvalds break; 50611da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 50621da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 50637d160a6cSTrond Myklebust if (decode_space_limit(xdr, &res->pagemod_limit) < 0) 50641da177e4SLinus Torvalds return -EIO; 50651da177e4SLinus Torvalds } 50661bbe60ffSTrond Myklebust return decode_ace(xdr, NULL); 5067c0eae66eSBenny Halevy out_overflow: 5068c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5069c0eae66eSBenny Halevy return -EIO; 50701da177e4SLinus Torvalds } 50711da177e4SLinus Torvalds 50726ae37339STrond Myklebust static int decode_no_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 50736ae37339STrond Myklebust { 50746ae37339STrond Myklebust __be32 *p; 50756ae37339STrond Myklebust uint32_t why_no_delegation; 50766ae37339STrond Myklebust 50776ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 50786ae37339STrond Myklebust if (unlikely(!p)) 50796ae37339STrond Myklebust goto out_overflow; 50806ae37339STrond Myklebust why_no_delegation = be32_to_cpup(p); 50816ae37339STrond Myklebust switch (why_no_delegation) { 50826ae37339STrond Myklebust case WND4_CONTENTION: 50836ae37339STrond Myklebust case WND4_RESOURCE: 50846ae37339STrond Myklebust xdr_inline_decode(xdr, 4); 50856ae37339STrond Myklebust /* Ignore for now */ 50866ae37339STrond Myklebust } 50876ae37339STrond Myklebust return 0; 50886ae37339STrond Myklebust out_overflow: 50896ae37339STrond Myklebust print_overflow_msg(__func__, xdr); 50906ae37339STrond Myklebust return -EIO; 50916ae37339STrond Myklebust } 50926ae37339STrond Myklebust 50936ae37339STrond Myklebust static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 50946ae37339STrond Myklebust { 50956ae37339STrond Myklebust __be32 *p; 50966ae37339STrond Myklebust uint32_t delegation_type; 50976ae37339STrond Myklebust 50986ae37339STrond Myklebust p = xdr_inline_decode(xdr, 4); 50996ae37339STrond Myklebust if (unlikely(!p)) 51006ae37339STrond Myklebust goto out_overflow; 51016ae37339STrond Myklebust delegation_type = be32_to_cpup(p); 51026ae37339STrond Myklebust res->delegation_type = 0; 51036ae37339STrond Myklebust switch (delegation_type) { 51046ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE: 51056ae37339STrond Myklebust return 0; 51066ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_READ: 51076ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_WRITE: 51086ae37339STrond Myklebust return decode_rw_delegation(xdr, delegation_type, res); 51096ae37339STrond Myklebust case NFS4_OPEN_DELEGATE_NONE_EXT: 51106ae37339STrond Myklebust return decode_no_delegation(xdr, res); 51116ae37339STrond Myklebust } 51126ae37339STrond Myklebust return -EIO; 51136ae37339STrond Myklebust out_overflow: 51146ae37339STrond Myklebust print_overflow_msg(__func__, xdr); 51156ae37339STrond Myklebust return -EIO; 51166ae37339STrond Myklebust } 51176ae37339STrond Myklebust 51181da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 51191da177e4SLinus Torvalds { 51208687b63aSAl Viro __be32 *p; 5121aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 51221da177e4SLinus Torvalds int status; 51231da177e4SLinus Torvalds 5124c7848f69STrond Myklebust if (!__decode_op_hdr(xdr, OP_OPEN, &status)) 5125c7848f69STrond Myklebust return status; 5126c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 5127c7848f69STrond Myklebust if (status) 5128c7848f69STrond Myklebust return status; 512993b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 513007d30434SBenny Halevy if (unlikely(status)) 51311da177e4SLinus Torvalds return status; 51321da177e4SLinus Torvalds 51331da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 51341da177e4SLinus Torvalds 5135c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5136c0eae66eSBenny Halevy if (unlikely(!p)) 5137c0eae66eSBenny Halevy goto out_overflow; 51386f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 5139cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 51401da177e4SLinus Torvalds if (bmlen > 10) 51411da177e4SLinus Torvalds goto xdr_error; 51421da177e4SLinus Torvalds 5143c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5144c0eae66eSBenny Halevy if (unlikely(!p)) 5145c0eae66eSBenny Halevy goto out_overflow; 5146aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 5147aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 51486f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 5149aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 5150aa53ed54SJeff Layton res->attrset[i] = 0; 5151aa53ed54SJeff Layton 51521da177e4SLinus Torvalds return decode_delegation(xdr, res); 51531da177e4SLinus Torvalds xdr_error: 51543110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 51551da177e4SLinus Torvalds return -EIO; 5156c0eae66eSBenny Halevy out_overflow: 5157c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5158c0eae66eSBenny Halevy return -EIO; 51591da177e4SLinus Torvalds } 51601da177e4SLinus Torvalds 51611da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 51621da177e4SLinus Torvalds { 51631da177e4SLinus Torvalds int status; 51641da177e4SLinus Torvalds 51651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 5166c1d51931STrond Myklebust if (status != -EIO) 5167c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 516807d30434SBenny Halevy if (!status) 516993b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 51701da177e4SLinus Torvalds return status; 51711da177e4SLinus Torvalds } 51721da177e4SLinus Torvalds 51731da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 51741da177e4SLinus Torvalds { 51751da177e4SLinus Torvalds int status; 51761da177e4SLinus Torvalds 51771da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 5178c1d51931STrond Myklebust if (status != -EIO) 5179c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 518007d30434SBenny Halevy if (!status) 518193b717fdSTrond Myklebust status = decode_open_stateid(xdr, &res->stateid); 51821da177e4SLinus Torvalds return status; 51831da177e4SLinus Torvalds } 51841da177e4SLinus Torvalds 51851da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 51861da177e4SLinus Torvalds { 51871da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 51881da177e4SLinus Torvalds } 51891da177e4SLinus Torvalds 51901da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 51911da177e4SLinus Torvalds { 51921da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 51931da177e4SLinus Torvalds } 51941da177e4SLinus Torvalds 51959137bdf3SAnna Schumaker static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, 51969137bdf3SAnna Schumaker struct nfs_pgio_res *res) 51971da177e4SLinus Torvalds { 51988687b63aSAl Viro __be32 *p; 519964bd577eSTrond Myklebust uint32_t count, eof, recvd; 52001da177e4SLinus Torvalds int status; 52011da177e4SLinus Torvalds 52021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 52031da177e4SLinus Torvalds if (status) 52041da177e4SLinus Torvalds return status; 5205c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5206c0eae66eSBenny Halevy if (unlikely(!p)) 5207c0eae66eSBenny Halevy goto out_overflow; 52086f723f77SBenny Halevy eof = be32_to_cpup(p++); 5209cccddf4fSBenny Halevy count = be32_to_cpup(p); 521064bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 52111da177e4SLinus Torvalds if (count > recvd) { 5212fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 52131da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 52141da177e4SLinus Torvalds count = recvd; 52151da177e4SLinus Torvalds eof = 0; 52161da177e4SLinus Torvalds } 52171da177e4SLinus Torvalds res->eof = eof; 52181da177e4SLinus Torvalds res->count = count; 52191da177e4SLinus Torvalds return 0; 5220c0eae66eSBenny Halevy out_overflow: 5221c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5222c0eae66eSBenny Halevy return -EIO; 52231da177e4SLinus Torvalds } 52241da177e4SLinus Torvalds 52251da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 52261da177e4SLinus Torvalds { 5227bcecff77SChuck Lever int status; 5228cd93710eSChuck Lever __be32 verf[2]; 52291da177e4SLinus Torvalds 52301da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 5231db942bbdSBenny Halevy if (!status) 5232db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 5233db942bbdSBenny Halevy if (unlikely(status)) 52341da177e4SLinus Torvalds return status; 5235cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 523644109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 5237cd93710eSChuck Lever __func__, verf[0], verf[1]); 523864bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 52391da177e4SLinus Torvalds } 52401da177e4SLinus Torvalds 52411da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 52421da177e4SLinus Torvalds { 52431da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 5244bcecff77SChuck Lever u32 len, recvd; 52458687b63aSAl Viro __be32 *p; 52461da177e4SLinus Torvalds int status; 52471da177e4SLinus Torvalds 52481da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 52491da177e4SLinus Torvalds if (status) 52501da177e4SLinus Torvalds return status; 52511da177e4SLinus Torvalds 52521da177e4SLinus Torvalds /* Convert length of symlink */ 5253c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5254c0eae66eSBenny Halevy if (unlikely(!p)) 5255c0eae66eSBenny Halevy goto out_overflow; 5256cccddf4fSBenny Halevy len = be32_to_cpup(p); 52571da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 5258fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 52591da177e4SLinus Torvalds return -ENAMETOOLONG; 52601da177e4SLinus Torvalds } 526164bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 52621da177e4SLinus Torvalds if (recvd < len) { 5263fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 52641da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 52651da177e4SLinus Torvalds return -EIO; 52661da177e4SLinus Torvalds } 52671da177e4SLinus Torvalds /* 52681da177e4SLinus Torvalds * The XDR encode routine has set things up so that 52691da177e4SLinus Torvalds * the link text will be copied directly into the 52701da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 52711da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 52721da177e4SLinus Torvalds * null-termination). 52731da177e4SLinus Torvalds */ 5274b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 52751da177e4SLinus Torvalds return 0; 5276c0eae66eSBenny Halevy out_overflow: 5277c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5278c0eae66eSBenny Halevy return -EIO; 52791da177e4SLinus Torvalds } 52801da177e4SLinus Torvalds 52811da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 52821da177e4SLinus Torvalds { 52831da177e4SLinus Torvalds int status; 52841da177e4SLinus Torvalds 52851da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 52861da177e4SLinus Torvalds if (status) 52871da177e4SLinus Torvalds goto out; 52881da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 52891da177e4SLinus Torvalds out: 52901da177e4SLinus Torvalds return status; 52911da177e4SLinus Torvalds } 52921da177e4SLinus Torvalds 52931da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 52941da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 52951da177e4SLinus Torvalds { 52961da177e4SLinus Torvalds int status; 52971da177e4SLinus Torvalds 52981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 52991da177e4SLinus Torvalds if (status) 53001da177e4SLinus Torvalds goto out; 53011da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 53021da177e4SLinus Torvalds goto out; 53031da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 53041da177e4SLinus Torvalds out: 53051da177e4SLinus Torvalds return status; 53061da177e4SLinus Torvalds } 53071da177e4SLinus Torvalds 53081da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 53091da177e4SLinus Torvalds { 53101da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 53111da177e4SLinus Torvalds } 53121da177e4SLinus Torvalds 531356ae19f3STrond Myklebust static int 531456ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 531556ae19f3STrond Myklebust { 531656ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 531756ae19f3STrond Myklebust } 531856ae19f3STrond Myklebust 5319029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5320bf118a34SAndy Adamson struct nfs_getaclres *res) 5321029d105eSJ. Bruce Fields { 5322256e48bbSTrond Myklebust unsigned int savep; 5323029d105eSJ. Bruce Fields uint32_t attrlen, 5324dae100c2SFred Isaman bitmap[3] = {0}; 5325029d105eSJ. Bruce Fields int status; 5326cff298c7STrond Myklebust unsigned int pg_offset; 5327029d105eSJ. Bruce Fields 5328bf118a34SAndy Adamson res->acl_len = 0; 5329029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5330029d105eSJ. Bruce Fields goto out; 53315a006899SSachin Prabhu 5332519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5333519d3959STrond Myklebust 5334cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5335cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 53365a006899SSachin Prabhu 5337029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5338029d105eSJ. Bruce Fields goto out; 5339029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5340029d105eSJ. Bruce Fields goto out; 5341029d105eSJ. Bruce Fields 5342029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5343029d105eSJ. Bruce Fields return -EIO; 5344029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5345029d105eSJ. Bruce Fields 5346bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5347bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5348bf118a34SAndy Adamson * variable length bitmaps.*/ 5349cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5350519d3959STrond Myklebust res->acl_len = attrlen; 53511f1ea6c2STrond Myklebust 53521f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 53531f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 53541f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 53551f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5356519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5357cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5358029d105eSJ. Bruce Fields } 53598c233cf9SJ. Bruce Fields } else 53608c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5361029d105eSJ. Bruce Fields 5362029d105eSJ. Bruce Fields out: 5363029d105eSJ. Bruce Fields return status; 5364029d105eSJ. Bruce Fields } 5365029d105eSJ. Bruce Fields 53661da177e4SLinus Torvalds static int 53671da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 53681da177e4SLinus Torvalds { 53691da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 53701da177e4SLinus Torvalds } 53711da177e4SLinus Torvalds 53729e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 53731da177e4SLinus Torvalds { 53748687b63aSAl Viro __be32 *p; 53751da177e4SLinus Torvalds uint32_t bmlen; 53761da177e4SLinus Torvalds int status; 53771da177e4SLinus Torvalds 53781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 53791da177e4SLinus Torvalds if (status) 53801da177e4SLinus Torvalds return status; 5381c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5382c0eae66eSBenny Halevy if (unlikely(!p)) 5383c0eae66eSBenny Halevy goto out_overflow; 5384cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5385c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5386c0eae66eSBenny Halevy if (likely(p)) 53871da177e4SLinus Torvalds return 0; 5388c0eae66eSBenny Halevy out_overflow: 5389c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5390c0eae66eSBenny Halevy return -EIO; 53911da177e4SLinus Torvalds } 53921da177e4SLinus Torvalds 5393bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 53941da177e4SLinus Torvalds { 53958687b63aSAl Viro __be32 *p; 53961da177e4SLinus Torvalds uint32_t opnum; 53971da177e4SLinus Torvalds int32_t nfserr; 53981da177e4SLinus Torvalds 5399c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5400c0eae66eSBenny Halevy if (unlikely(!p)) 5401c0eae66eSBenny Halevy goto out_overflow; 54026f723f77SBenny Halevy opnum = be32_to_cpup(p++); 54031da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5404fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 54051da177e4SLinus Torvalds " %d\n", opnum); 54061da177e4SLinus Torvalds return -EIO; 54071da177e4SLinus Torvalds } 5408cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 54091da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5410c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5411c0eae66eSBenny Halevy if (unlikely(!p)) 5412c0eae66eSBenny Halevy goto out_overflow; 5413bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5414bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 54151da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 54161da177e4SLinus Torvalds uint32_t len; 54171da177e4SLinus Torvalds 54181da177e4SLinus Torvalds /* skip netid string */ 5419c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5420c0eae66eSBenny Halevy if (unlikely(!p)) 5421c0eae66eSBenny Halevy goto out_overflow; 5422cccddf4fSBenny Halevy len = be32_to_cpup(p); 5423c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5424c0eae66eSBenny Halevy if (unlikely(!p)) 5425c0eae66eSBenny Halevy goto out_overflow; 54261da177e4SLinus Torvalds 54271da177e4SLinus Torvalds /* skip uaddr string */ 5428c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5429c0eae66eSBenny Halevy if (unlikely(!p)) 5430c0eae66eSBenny Halevy goto out_overflow; 5431cccddf4fSBenny Halevy len = be32_to_cpup(p); 5432c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5433c0eae66eSBenny Halevy if (unlikely(!p)) 5434c0eae66eSBenny Halevy goto out_overflow; 54351da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 54361da177e4SLinus Torvalds } else 5437856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 54381da177e4SLinus Torvalds 54391da177e4SLinus Torvalds return 0; 5440c0eae66eSBenny Halevy out_overflow: 5441c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5442c0eae66eSBenny Halevy return -EIO; 54431da177e4SLinus Torvalds } 54441da177e4SLinus Torvalds 54451da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 54461da177e4SLinus Torvalds { 54471da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 54481da177e4SLinus Torvalds } 54491da177e4SLinus Torvalds 54509137bdf3SAnna Schumaker static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res) 54511da177e4SLinus Torvalds { 54528687b63aSAl Viro __be32 *p; 54531da177e4SLinus Torvalds int status; 54541da177e4SLinus Torvalds 54551da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 54561da177e4SLinus Torvalds if (status) 54571da177e4SLinus Torvalds return status; 54581da177e4SLinus Torvalds 54592f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5460c0eae66eSBenny Halevy if (unlikely(!p)) 5461c0eae66eSBenny Halevy goto out_overflow; 54626f723f77SBenny Halevy res->count = be32_to_cpup(p++); 54636f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 54642f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5465c0eae66eSBenny Halevy out_overflow: 5466c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5467c0eae66eSBenny Halevy return -EIO; 54681da177e4SLinus Torvalds } 54691da177e4SLinus Torvalds 54701da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 54711da177e4SLinus Torvalds { 54721da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 54731da177e4SLinus Torvalds } 54741da177e4SLinus Torvalds 5475fb15b26fSChuck Lever static int decode_secinfo_gss(struct xdr_stream *xdr, 5476fb15b26fSChuck Lever struct nfs4_secinfo4 *flavor) 54775a5ea0d4SBryan Schumaker { 5478fb15b26fSChuck Lever u32 oid_len; 54795a5ea0d4SBryan Schumaker __be32 *p; 54805a5ea0d4SBryan Schumaker 54815a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54825a5ea0d4SBryan Schumaker if (unlikely(!p)) 54835a5ea0d4SBryan Schumaker goto out_overflow; 5484fb15b26fSChuck Lever oid_len = be32_to_cpup(p); 5485fb15b26fSChuck Lever if (oid_len > GSS_OID_MAX_LEN) 54865a5ea0d4SBryan Schumaker goto out_err; 54875a5ea0d4SBryan Schumaker 5488fb15b26fSChuck Lever p = xdr_inline_decode(xdr, oid_len); 54895a5ea0d4SBryan Schumaker if (unlikely(!p)) 54905a5ea0d4SBryan Schumaker goto out_overflow; 5491fb15b26fSChuck Lever memcpy(flavor->flavor_info.oid.data, p, oid_len); 5492fb15b26fSChuck Lever flavor->flavor_info.oid.len = oid_len; 54935a5ea0d4SBryan Schumaker 54945a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 54955a5ea0d4SBryan Schumaker if (unlikely(!p)) 54965a5ea0d4SBryan Schumaker goto out_overflow; 5497fb15b26fSChuck Lever flavor->flavor_info.qop = be32_to_cpup(p++); 5498fb15b26fSChuck Lever flavor->flavor_info.service = be32_to_cpup(p); 54995a5ea0d4SBryan Schumaker 55005a5ea0d4SBryan Schumaker return 0; 55015a5ea0d4SBryan Schumaker 55025a5ea0d4SBryan Schumaker out_overflow: 55035a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 55045a5ea0d4SBryan Schumaker return -EIO; 55055a5ea0d4SBryan Schumaker out_err: 55065a5ea0d4SBryan Schumaker return -EINVAL; 55075a5ea0d4SBryan Schumaker } 55085a5ea0d4SBryan Schumaker 550931e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 55105a5ea0d4SBryan Schumaker { 5511fb15b26fSChuck Lever struct nfs4_secinfo4 *sec_flavor; 5512fb15b26fSChuck Lever unsigned int i, num_flavors; 55135a5ea0d4SBryan Schumaker int status; 55145a5ea0d4SBryan Schumaker __be32 *p; 55155a5ea0d4SBryan Schumaker 55165a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 55175a5ea0d4SBryan Schumaker if (unlikely(!p)) 55185a5ea0d4SBryan Schumaker goto out_overflow; 55195a5ea0d4SBryan Schumaker 5520c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5521c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5522c3dfc280SBryan Schumaker 5523c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 55245a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5525c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 55265a5ea0d4SBryan Schumaker break; 55275a5ea0d4SBryan Schumaker 55285a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 55295a5ea0d4SBryan Schumaker if (unlikely(!p)) 55305a5ea0d4SBryan Schumaker goto out_overflow; 55315a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 55325a5ea0d4SBryan Schumaker 55335a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5534613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5535613e901eSBryan Schumaker if (status) 5536613e901eSBryan Schumaker goto out; 55375a5ea0d4SBryan Schumaker } 5538c3dfc280SBryan Schumaker res->flavors->num_flavors++; 55395a5ea0d4SBryan Schumaker } 55405a5ea0d4SBryan Schumaker 554131e4dda4SBryan Schumaker status = 0; 5542613e901eSBryan Schumaker out: 5543613e901eSBryan Schumaker return status; 55445a5ea0d4SBryan Schumaker out_overflow: 55455a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 55465a5ea0d4SBryan Schumaker return -EIO; 55475a5ea0d4SBryan Schumaker } 55485a5ea0d4SBryan Schumaker 554931e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 555031e4dda4SBryan Schumaker { 555131e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 555231e4dda4SBryan Schumaker if (status) 555331e4dda4SBryan Schumaker return status; 555431e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 555531e4dda4SBryan Schumaker } 555631e4dda4SBryan Schumaker 555799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 555831e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 555931e4dda4SBryan Schumaker { 556031e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 556131e4dda4SBryan Schumaker if (status) 556231e4dda4SBryan Schumaker return status; 556331e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 556431e4dda4SBryan Schumaker } 556531e4dda4SBryan Schumaker 55662031cd1aSWeston Andros Adamson static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 55672031cd1aSWeston Andros Adamson { 55682031cd1aSWeston Andros Adamson __be32 *p; 55692031cd1aSWeston Andros Adamson uint32_t bitmap_words; 55702031cd1aSWeston Andros Adamson unsigned int i; 55712031cd1aSWeston Andros Adamson 55722031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 55732031cd1aSWeston Andros Adamson bitmap_words = be32_to_cpup(p++); 55742031cd1aSWeston Andros Adamson if (bitmap_words > NFS4_OP_MAP_NUM_WORDS) 55752031cd1aSWeston Andros Adamson return -EIO; 55762031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4 * bitmap_words); 55772031cd1aSWeston Andros Adamson for (i = 0; i < bitmap_words; i++) 55782031cd1aSWeston Andros Adamson op_map->u.words[i] = be32_to_cpup(p++); 55792031cd1aSWeston Andros Adamson 55802031cd1aSWeston Andros Adamson return 0; 55812031cd1aSWeston Andros Adamson } 55822031cd1aSWeston Andros Adamson 558399fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 558499fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 558599fe60d0SBenny Halevy { 558699fe60d0SBenny Halevy __be32 *p; 558799fe60d0SBenny Halevy uint32_t dummy; 55882460ba57SBenny Halevy char *dummy_str; 558999fe60d0SBenny Halevy int status; 55907d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 559199fe60d0SBenny Halevy 559299fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 559399fe60d0SBenny Halevy if (status) 559499fe60d0SBenny Halevy return status; 559599fe60d0SBenny Halevy 5596c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5597c0eae66eSBenny Halevy if (unlikely(!p)) 5598c0eae66eSBenny Halevy goto out_overflow; 559932b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5600c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5601c0eae66eSBenny Halevy if (unlikely(!p)) 5602c0eae66eSBenny Halevy goto out_overflow; 560332b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 560432b01310STrond Myklebust res->flags = be32_to_cpup(p++); 560599fe60d0SBenny Halevy 56062031cd1aSWeston Andros Adamson res->state_protect.how = be32_to_cpup(p); 56072031cd1aSWeston Andros Adamson switch (res->state_protect.how) { 56082031cd1aSWeston Andros Adamson case SP4_NONE: 56092031cd1aSWeston Andros Adamson break; 56102031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 56112031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.enforce); 56122031cd1aSWeston Andros Adamson if (status) 56132031cd1aSWeston Andros Adamson return status; 56142031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.allow); 56152031cd1aSWeston Andros Adamson if (status) 56162031cd1aSWeston Andros Adamson return status; 56172031cd1aSWeston Andros Adamson break; 56182031cd1aSWeston Andros Adamson default: 56192031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 562099fe60d0SBenny Halevy return -EIO; 56212031cd1aSWeston Andros Adamson } 562299fe60d0SBenny Halevy 5623acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5624c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5625c0eae66eSBenny Halevy if (unlikely(!p)) 5626c0eae66eSBenny Halevy goto out_overflow; 5627acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 562899fe60d0SBenny Halevy 5629acdeb69dSChuck Lever /* server_owner4.so_major_id */ 56302460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 56312460ba57SBenny Halevy if (unlikely(status)) 56322460ba57SBenny Halevy return status; 5633acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5634acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 563578fe0f41SWeston Andros Adamson 5636acdeb69dSChuck Lever /* server_scope4 */ 5637acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5638acdeb69dSChuck Lever if (unlikely(status)) 5639acdeb69dSChuck Lever return status; 564078fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 564178fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 564278fe0f41SWeston Andros Adamson 56437d2ed9acSWeston Andros Adamson /* Implementation Id */ 56447d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 56457d2ed9acSWeston Andros Adamson if (unlikely(!p)) 56467d2ed9acSWeston Andros Adamson goto out_overflow; 56477d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 56487d2ed9acSWeston Andros Adamson 56497d2ed9acSWeston Andros Adamson if (impl_id_count) { 56507d2ed9acSWeston Andros Adamson /* nii_domain */ 56512460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 56522460ba57SBenny Halevy if (unlikely(status)) 56532460ba57SBenny Halevy return status; 56547d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 565599fe60d0SBenny Halevy 56567d2ed9acSWeston Andros Adamson /* nii_name */ 56577d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 56587d2ed9acSWeston Andros Adamson if (unlikely(status)) 56597d2ed9acSWeston Andros Adamson return status; 56607d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 56617d2ed9acSWeston Andros Adamson 56627d2ed9acSWeston Andros Adamson /* nii_date */ 56637d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 56647d2ed9acSWeston Andros Adamson if (unlikely(!p)) 56657d2ed9acSWeston Andros Adamson goto out_overflow; 56667d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 56677d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 56687d2ed9acSWeston Andros Adamson 56697d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 56707d2ed9acSWeston Andros Adamson } 567199fe60d0SBenny Halevy return 0; 5672c0eae66eSBenny Halevy out_overflow: 5673c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5674c0eae66eSBenny Halevy return -EIO; 567599fe60d0SBenny Halevy } 5676fc931582SAndy Adamson 5677fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5678fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5679fc931582SAndy Adamson { 5680fc931582SAndy Adamson __be32 *p; 5681c9c30dd5SBenny Halevy u32 nr_attrs, val; 5682fc931582SAndy Adamson 5683c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5684c0eae66eSBenny Halevy if (unlikely(!p)) 5685c0eae66eSBenny Halevy goto out_overflow; 5686c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5687c9c30dd5SBenny Halevy if (val) 5688c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 56896f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 56906f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 56916f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 56926f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 56936f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5694cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5695fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5696a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5697a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5698fc931582SAndy Adamson return -EINVAL; 5699fc931582SAndy Adamson } 5700c0eae66eSBenny Halevy if (nr_attrs == 1) { 5701c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5702c0eae66eSBenny Halevy if (unlikely(!p)) 5703c0eae66eSBenny Halevy goto out_overflow; 5704c0eae66eSBenny Halevy } 5705fc931582SAndy Adamson return 0; 5706c0eae66eSBenny Halevy out_overflow: 5707c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5708c0eae66eSBenny Halevy return -EIO; 5709fc931582SAndy Adamson } 5710fc931582SAndy Adamson 5711e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5712e78291e4SBenny Halevy { 5713e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5714fc931582SAndy Adamson } 5715fc931582SAndy Adamson 57167c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 57177c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 57187c44f1aeSWeston Andros Adamson { 57197c44f1aeSWeston Andros Adamson __be32 *p; 57207c44f1aeSWeston Andros Adamson int status; 57217c44f1aeSWeston Andros Adamson 57227c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 57237c44f1aeSWeston Andros Adamson if (!status) 572471a097c6STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 57257c44f1aeSWeston Andros Adamson if (unlikely(status)) 57267c44f1aeSWeston Andros Adamson return status; 57277c44f1aeSWeston Andros Adamson 57287c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 57297c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 57307c44f1aeSWeston Andros Adamson if (unlikely(!p)) 57317c44f1aeSWeston Andros Adamson goto out_overflow; 57327c44f1aeSWeston Andros Adamson 57337c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 57347c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 57357c44f1aeSWeston Andros Adamson return -EIO; 57367c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 57377c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 57387c44f1aeSWeston Andros Adamson else 57397c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 57407c44f1aeSWeston Andros Adamson 57417c44f1aeSWeston Andros Adamson return 0; 57427c44f1aeSWeston Andros Adamson out_overflow: 57437c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 57447c44f1aeSWeston Andros Adamson return -EIO; 57457c44f1aeSWeston Andros Adamson } 57467c44f1aeSWeston Andros Adamson 5747fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5748fc931582SAndy Adamson struct nfs41_create_session_res *res) 5749fc931582SAndy Adamson { 5750fc931582SAndy Adamson __be32 *p; 5751fc931582SAndy Adamson int status; 5752fc931582SAndy Adamson 5753fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5754e78291e4SBenny Halevy if (!status) 575579969dd1STrond Myklebust status = decode_sessionid(xdr, &res->sessionid); 5756e78291e4SBenny Halevy if (unlikely(status)) 5757fc931582SAndy Adamson return status; 5758fc931582SAndy Adamson 5759fc931582SAndy Adamson /* seqid, flags */ 5760c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5761c0eae66eSBenny Halevy if (unlikely(!p)) 5762c0eae66eSBenny Halevy goto out_overflow; 576379969dd1STrond Myklebust res->seqid = be32_to_cpup(p++); 576479969dd1STrond Myklebust res->flags = be32_to_cpup(p); 5765fc931582SAndy Adamson 5766fc931582SAndy Adamson /* Channel attributes */ 576779969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->fc_attrs); 5768fc931582SAndy Adamson if (!status) 576979969dd1STrond Myklebust status = decode_chan_attrs(xdr, &res->bc_attrs); 5770fc931582SAndy Adamson return status; 5771c0eae66eSBenny Halevy out_overflow: 5772c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5773c0eae66eSBenny Halevy return -EIO; 5774fc931582SAndy Adamson } 57750f3e66c6SAndy Adamson 57760f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 57770f3e66c6SAndy Adamson { 57780f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 57790f3e66c6SAndy Adamson } 578018019753SRicardo Labiaga 578166245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 578266245539STrond Myklebust { 578366245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 578466245539STrond Myklebust } 578566245539STrond Myklebust 578618019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 578718019753SRicardo Labiaga { 578818019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 578918019753SRicardo Labiaga } 579099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 579199fe60d0SBenny Halevy 57929b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 57939b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 57949b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 57959b7b9fccSAndy Adamson { 57969b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5797e3725ec0STrond Myklebust struct nfs4_session *session; 5798fc01cea9SAndy Adamson struct nfs4_sessionid id; 5799fc01cea9SAndy Adamson u32 dummy; 5800fc01cea9SAndy Adamson int status; 5801fc01cea9SAndy Adamson __be32 *p; 5802fc01cea9SAndy Adamson 5803e3725ec0STrond Myklebust if (res->sr_slot == NULL) 58049b7b9fccSAndy Adamson return 0; 58053bd2384aSChuck Lever if (!res->sr_slot->table->session) 58063bd2384aSChuck Lever return 0; 58079b7b9fccSAndy Adamson 5808fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5809e78291e4SBenny Halevy if (!status) 5810e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5811e78291e4SBenny Halevy if (unlikely(status)) 5812fc01cea9SAndy Adamson goto out_err; 58139b7b9fccSAndy Adamson 5814fc01cea9SAndy Adamson /* 5815fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5816fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5817fc01cea9SAndy Adamson */ 5818fdcb4577STrond Myklebust status = -EREMOTEIO; 5819e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5820fc01cea9SAndy Adamson 5821e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5822fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5823fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5824fc01cea9SAndy Adamson goto out_err; 5825fc01cea9SAndy Adamson } 5826e78291e4SBenny Halevy 5827c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5828c0eae66eSBenny Halevy if (unlikely(!p)) 5829c0eae66eSBenny Halevy goto out_overflow; 5830e78291e4SBenny Halevy 5831fc01cea9SAndy Adamson /* seqid */ 58326f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5833dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5834fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5835fc01cea9SAndy Adamson goto out_err; 5836fc01cea9SAndy Adamson } 5837fc01cea9SAndy Adamson /* slot id */ 58386f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5839df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5840fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5841fc01cea9SAndy Adamson goto out_err; 5842fc01cea9SAndy Adamson } 5843da0507b7STrond Myklebust /* highest slot id */ 5844da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5845464ee9f9STrond Myklebust /* target highest slot id */ 5846464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 58470629e370SAlexandros Batsakis /* result flags */ 58480629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5849fc01cea9SAndy Adamson status = 0; 5850fc01cea9SAndy Adamson out_err: 5851fc01cea9SAndy Adamson res->sr_status = status; 5852fc01cea9SAndy Adamson return status; 5853c0eae66eSBenny Halevy out_overflow: 5854c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5855c0eae66eSBenny Halevy status = -EIO; 5856c0eae66eSBenny Halevy goto out_err; 5857fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 58589b7b9fccSAndy Adamson return 0; 5859fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 58609b7b9fccSAndy Adamson } 58619b7b9fccSAndy Adamson 5862b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 586393b717fdSTrond Myklebust static int decode_layout_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 586493b717fdSTrond Myklebust { 586593b717fdSTrond Myklebust stateid->type = NFS4_LAYOUT_STATEID_TYPE; 586693b717fdSTrond Myklebust return decode_stateid(xdr, stateid); 586793b717fdSTrond Myklebust } 586893b717fdSTrond Myklebust 5869b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 58704e590803STrond Myklebust struct nfs4_getdeviceinfo_res *res) 5871b1f69b75SAndy Adamson { 58724e590803STrond Myklebust struct pnfs_device *pdev = res->pdev; 5873b1f69b75SAndy Adamson __be32 *p; 5874b1f69b75SAndy Adamson uint32_t len, type; 5875b1f69b75SAndy Adamson int status; 5876b1f69b75SAndy Adamson 5877b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5878b1f69b75SAndy Adamson if (status) { 5879b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5880b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5881b1f69b75SAndy Adamson if (unlikely(!p)) 5882b1f69b75SAndy Adamson goto out_overflow; 5883b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5884b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5885b1f69b75SAndy Adamson __func__, pdev->mincount); 5886b1f69b75SAndy Adamson } 5887b1f69b75SAndy Adamson return status; 5888b1f69b75SAndy Adamson } 5889b1f69b75SAndy Adamson 5890b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5891b1f69b75SAndy Adamson if (unlikely(!p)) 5892b1f69b75SAndy Adamson goto out_overflow; 5893b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5894b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5895b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5896b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5897b1f69b75SAndy Adamson return -EINVAL; 5898b1f69b75SAndy Adamson } 5899b1f69b75SAndy Adamson /* 5900b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5901b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5902b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5903b1f69b75SAndy Adamson */ 5904b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 590513fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 590613fe4ba1STrond Myklebust goto out_overflow; 5907b1f69b75SAndy Adamson 5908b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5909b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5910b1f69b75SAndy Adamson if (unlikely(!p)) 5911b1f69b75SAndy Adamson goto out_overflow; 5912b1f69b75SAndy Adamson len = be32_to_cpup(p); 5913b1f69b75SAndy Adamson if (len) { 5914ead00597SChuck Lever uint32_t i; 5915b1f69b75SAndy Adamson 5916b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5917b1f69b75SAndy Adamson if (unlikely(!p)) 5918b1f69b75SAndy Adamson goto out_overflow; 591984c9dee3SChristoph Hellwig 59204e590803STrond Myklebust res->notification = be32_to_cpup(p++); 592184c9dee3SChristoph Hellwig for (i = 1; i < len; i++) { 592284c9dee3SChristoph Hellwig if (be32_to_cpup(p++)) { 592384c9dee3SChristoph Hellwig dprintk("%s: unsupported notification\n", 5924b1f69b75SAndy Adamson __func__); 5925b1f69b75SAndy Adamson return -EIO; 5926b1f69b75SAndy Adamson } 5927b1f69b75SAndy Adamson } 5928b1f69b75SAndy Adamson } 5929b1f69b75SAndy Adamson return 0; 5930b1f69b75SAndy Adamson out_overflow: 5931b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5932b1f69b75SAndy Adamson return -EIO; 5933b1f69b75SAndy Adamson } 5934b1f69b75SAndy Adamson 5935b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5936b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5937b1f69b75SAndy Adamson { 5938b1f69b75SAndy Adamson __be32 *p; 5939b1f69b75SAndy Adamson int status; 5940b1f69b75SAndy Adamson u32 layout_count; 594164bd577eSTrond Myklebust u32 recvd; 5942b1f69b75SAndy Adamson 5943b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5944b1f69b75SAndy Adamson if (status) 5945b1f69b75SAndy Adamson return status; 5946ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5947b1f69b75SAndy Adamson if (unlikely(!p)) 5948b1f69b75SAndy Adamson goto out_overflow; 5949ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 595093b717fdSTrond Myklebust decode_layout_stateid(xdr, &res->stateid); 5951ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5952ea9d23f5STrond Myklebust if (unlikely(!p)) 5953ea9d23f5STrond Myklebust goto out_overflow; 5954b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5955b1f69b75SAndy Adamson if (!layout_count) { 5956b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5957b1f69b75SAndy Adamson __func__); 5958b1f69b75SAndy Adamson return -EINVAL; 5959b1f69b75SAndy Adamson } 5960b1f69b75SAndy Adamson 596135124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5962b1f69b75SAndy Adamson if (unlikely(!p)) 5963b1f69b75SAndy Adamson goto out_overflow; 5964b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5965b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5966b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5967b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 596835124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5969b1f69b75SAndy Adamson 5970b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5971b1f69b75SAndy Adamson __func__, 5972b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5973b1f69b75SAndy Adamson (unsigned long)res->range.length, 5974b1f69b75SAndy Adamson res->range.iomode, 5975b1f69b75SAndy Adamson res->type, 597635124a09SWeston Andros Adamson res->layoutp->len); 5977b1f69b75SAndy Adamson 597864bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 597935124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 598035124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 598135124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 598235124a09SWeston Andros Adamson res->layoutp->len, recvd); 598335124a09SWeston Andros Adamson return -EINVAL; 598435124a09SWeston Andros Adamson } 598535124a09SWeston Andros Adamson 5986b1f69b75SAndy Adamson if (layout_count > 1) { 5987b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5988b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5989b1f69b75SAndy Adamson * the client may see a response that is less than the 5990b1f69b75SAndy Adamson * minimum it requested. 5991b1f69b75SAndy Adamson */ 5992b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5993b1f69b75SAndy Adamson __func__, layout_count); 5994b1f69b75SAndy Adamson } 5995b1f69b75SAndy Adamson 5996b1f69b75SAndy Adamson return 0; 5997b1f69b75SAndy Adamson out_overflow: 5998b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5999b1f69b75SAndy Adamson return -EIO; 6000b1f69b75SAndy Adamson } 6001863a3c6cSAndy Adamson 6002cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 6003cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6004cbe82603SBenny Halevy { 6005cbe82603SBenny Halevy __be32 *p; 6006cbe82603SBenny Halevy int status; 6007cbe82603SBenny Halevy 6008cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 6009cbe82603SBenny Halevy if (status) 6010cbe82603SBenny Halevy return status; 6011cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 6012cbe82603SBenny Halevy if (unlikely(!p)) 6013cbe82603SBenny Halevy goto out_overflow; 6014cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 6015cbe82603SBenny Halevy if (res->lrs_present) 601693b717fdSTrond Myklebust status = decode_layout_stateid(xdr, &res->stateid); 6017cbe82603SBenny Halevy return status; 6018cbe82603SBenny Halevy out_overflow: 6019cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 6020cbe82603SBenny Halevy return -EIO; 6021cbe82603SBenny Halevy } 6022cbe82603SBenny Halevy 6023863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 6024863a3c6cSAndy Adamson struct rpc_rqst *req, 6025863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6026863a3c6cSAndy Adamson { 6027863a3c6cSAndy Adamson __be32 *p; 6028863a3c6cSAndy Adamson __u32 sizechanged; 6029863a3c6cSAndy Adamson int status; 6030863a3c6cSAndy Adamson 6031863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 6032db29c089SAndy Adamson res->status = status; 6033863a3c6cSAndy Adamson if (status) 6034863a3c6cSAndy Adamson return status; 6035863a3c6cSAndy Adamson 6036863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 6037863a3c6cSAndy Adamson if (unlikely(!p)) 6038863a3c6cSAndy Adamson goto out_overflow; 6039863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 6040863a3c6cSAndy Adamson 6041863a3c6cSAndy Adamson if (sizechanged) { 6042863a3c6cSAndy Adamson /* throw away new size */ 6043863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 6044863a3c6cSAndy Adamson if (unlikely(!p)) 6045863a3c6cSAndy Adamson goto out_overflow; 6046863a3c6cSAndy Adamson } 6047863a3c6cSAndy Adamson return 0; 6048863a3c6cSAndy Adamson out_overflow: 6049863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 6050863a3c6cSAndy Adamson return -EIO; 6051863a3c6cSAndy Adamson } 60527d974794SBryan Schumaker 60537d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 60547d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 60557d974794SBryan Schumaker { 60567d974794SBryan Schumaker __be32 *p; 60577d974794SBryan Schumaker int status; 60587d974794SBryan Schumaker int num_res; 60597d974794SBryan Schumaker 60607d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 60617d974794SBryan Schumaker if (status) 60627d974794SBryan Schumaker return status; 60637d974794SBryan Schumaker 60647d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60657d974794SBryan Schumaker if (unlikely(!p)) 60667d974794SBryan Schumaker goto out_overflow; 60677d974794SBryan Schumaker num_res = be32_to_cpup(p++); 60687d974794SBryan Schumaker if (num_res != 1) 60697d974794SBryan Schumaker goto out; 60707d974794SBryan Schumaker 60717d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60727d974794SBryan Schumaker if (unlikely(!p)) 60737d974794SBryan Schumaker goto out_overflow; 60747d974794SBryan Schumaker res->status = be32_to_cpup(p++); 60751cab0652SBryan Schumaker 60761cab0652SBryan Schumaker return status; 60777d974794SBryan Schumaker out_overflow: 60787d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 60797d974794SBryan Schumaker out: 60807d974794SBryan Schumaker return -EIO; 60817d974794SBryan Schumaker } 60829aeda35fSBryan Schumaker 60839aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 60849aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 60859aeda35fSBryan Schumaker { 60869f79fb48SAndy Adamson res->status = decode_op_hdr(xdr, OP_FREE_STATEID); 60879aeda35fSBryan Schumaker return res->status; 60889aeda35fSBryan Schumaker } 6089cf805165STrond Myklebust #else 6090cf805165STrond Myklebust static inline 6091cf805165STrond Myklebust int decode_layoutreturn(struct xdr_stream *xdr, 6092cf805165STrond Myklebust struct nfs4_layoutreturn_res *res) 6093cf805165STrond Myklebust { 6094cf805165STrond Myklebust return 0; 6095cf805165STrond Myklebust } 6096b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 6097b1f69b75SAndy Adamson 60981da177e4SLinus Torvalds /* 609949c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 610049c2559eSBenny Halevy */ 610149c2559eSBenny Halevy 610249c2559eSBenny Halevy /* 61031da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 61041da177e4SLinus Torvalds */ 6105bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 6106bf269551SChuck Lever struct xdr_stream *xdr, 6107bf269551SChuck Lever struct nfs_closeres *res) 61081da177e4SLinus Torvalds { 61091da177e4SLinus Torvalds struct compound_hdr hdr; 61101da177e4SLinus Torvalds int status; 61111da177e4SLinus Torvalds 6112bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61131da177e4SLinus Torvalds if (status) 61141da177e4SLinus Torvalds goto out; 6115bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61169b7b9fccSAndy Adamson if (status) 61179b7b9fccSAndy Adamson goto out; 6118bf269551SChuck Lever status = decode_putfh(xdr); 61191da177e4SLinus Torvalds if (status) 61201da177e4SLinus Torvalds goto out; 6121b6808145STrond Myklebust if (res->lr_res) { 6122b6808145STrond Myklebust status = decode_layoutreturn(xdr, res->lr_res); 6123b6808145STrond Myklebust res->lr_ret = status; 6124b6808145STrond Myklebust if (status) 6125b6808145STrond Myklebust goto out; 6126b6808145STrond Myklebust } 6127bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 61281da177e4SLinus Torvalds out: 61291da177e4SLinus Torvalds return status; 61301da177e4SLinus Torvalds } 61311da177e4SLinus Torvalds 61321da177e4SLinus Torvalds /* 61331da177e4SLinus Torvalds * Decode ACCESS response 61341da177e4SLinus Torvalds */ 6135bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6136bf269551SChuck Lever struct nfs4_accessres *res) 61371da177e4SLinus Torvalds { 61381da177e4SLinus Torvalds struct compound_hdr hdr; 61391da177e4SLinus Torvalds int status; 61401da177e4SLinus Torvalds 6141bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61429b7b9fccSAndy Adamson if (status) 61439b7b9fccSAndy Adamson goto out; 6144bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61459b7b9fccSAndy Adamson if (status) 61461da177e4SLinus Torvalds goto out; 6147bf269551SChuck Lever status = decode_putfh(xdr); 614876b32999STrond Myklebust if (status != 0) 614976b32999STrond Myklebust goto out; 61506168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 615176b32999STrond Myklebust if (status != 0) 615276b32999STrond Myklebust goto out; 61536926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 61541da177e4SLinus Torvalds out: 61551da177e4SLinus Torvalds return status; 61561da177e4SLinus Torvalds } 61571da177e4SLinus Torvalds 61581da177e4SLinus Torvalds /* 61591da177e4SLinus Torvalds * Decode LOOKUP response 61601da177e4SLinus Torvalds */ 6161bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6162bf269551SChuck Lever struct nfs4_lookup_res *res) 61631da177e4SLinus Torvalds { 61641da177e4SLinus Torvalds struct compound_hdr hdr; 61651da177e4SLinus Torvalds int status; 61661da177e4SLinus Torvalds 6167bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61689b7b9fccSAndy Adamson if (status) 61699b7b9fccSAndy Adamson goto out; 6170bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61719b7b9fccSAndy Adamson if (status) 61721da177e4SLinus Torvalds goto out; 6173bf269551SChuck Lever status = decode_putfh(xdr); 6174bf269551SChuck Lever if (status) 61751da177e4SLinus Torvalds goto out; 6176bf269551SChuck Lever status = decode_lookup(xdr); 6177bf269551SChuck Lever if (status) 61781da177e4SLinus Torvalds goto out; 6179bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6180bf269551SChuck Lever if (status) 61811da177e4SLinus Torvalds goto out; 6182aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 61831da177e4SLinus Torvalds out: 61841da177e4SLinus Torvalds return status; 61851da177e4SLinus Torvalds } 61861da177e4SLinus Torvalds 61871da177e4SLinus Torvalds /* 61881da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 61891da177e4SLinus Torvalds */ 6190bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 6191bf269551SChuck Lever struct xdr_stream *xdr, 6192bf269551SChuck Lever struct nfs4_lookup_res *res) 61931da177e4SLinus Torvalds { 61941da177e4SLinus Torvalds struct compound_hdr hdr; 61951da177e4SLinus Torvalds int status; 61961da177e4SLinus Torvalds 6197bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61989b7b9fccSAndy Adamson if (status) 61999b7b9fccSAndy Adamson goto out; 6200bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62019b7b9fccSAndy Adamson if (status) 62021da177e4SLinus Torvalds goto out; 6203bf269551SChuck Lever status = decode_putrootfh(xdr); 6204bf269551SChuck Lever if (status) 62051da177e4SLinus Torvalds goto out; 6206bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6207bf269551SChuck Lever if (status == 0) 6208aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, 6209aa9c2669SDavid Quigley res->label, res->server); 62101da177e4SLinus Torvalds out: 62111da177e4SLinus Torvalds return status; 62121da177e4SLinus Torvalds } 62131da177e4SLinus Torvalds 62141da177e4SLinus Torvalds /* 62151da177e4SLinus Torvalds * Decode REMOVE response 62161da177e4SLinus Torvalds */ 6217bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6218bf269551SChuck Lever struct nfs_removeres *res) 62191da177e4SLinus Torvalds { 62201da177e4SLinus Torvalds struct compound_hdr hdr; 62211da177e4SLinus Torvalds int status; 62221da177e4SLinus Torvalds 6223bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62249b7b9fccSAndy Adamson if (status) 62259b7b9fccSAndy Adamson goto out; 6226bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62279b7b9fccSAndy Adamson if (status) 62281da177e4SLinus Torvalds goto out; 6229bf269551SChuck Lever status = decode_putfh(xdr); 6230bf269551SChuck Lever if (status) 623116e42959STrond Myklebust goto out; 6232bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 62331da177e4SLinus Torvalds out: 62341da177e4SLinus Torvalds return status; 62351da177e4SLinus Torvalds } 62361da177e4SLinus Torvalds 62371da177e4SLinus Torvalds /* 62381da177e4SLinus Torvalds * Decode RENAME response 62391da177e4SLinus Torvalds */ 6240bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6241bf269551SChuck Lever struct nfs_renameres *res) 62421da177e4SLinus Torvalds { 62431da177e4SLinus Torvalds struct compound_hdr hdr; 62441da177e4SLinus Torvalds int status; 62451da177e4SLinus Torvalds 6246bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62479b7b9fccSAndy Adamson if (status) 62489b7b9fccSAndy Adamson goto out; 6249bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62509b7b9fccSAndy Adamson if (status) 62511da177e4SLinus Torvalds goto out; 6252bf269551SChuck Lever status = decode_putfh(xdr); 6253bf269551SChuck Lever if (status) 62541da177e4SLinus Torvalds goto out; 6255bf269551SChuck Lever status = decode_savefh(xdr); 6256bf269551SChuck Lever if (status) 62571da177e4SLinus Torvalds goto out; 6258bf269551SChuck Lever status = decode_putfh(xdr); 6259bf269551SChuck Lever if (status) 62601da177e4SLinus Torvalds goto out; 6261bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 62621da177e4SLinus Torvalds out: 62631da177e4SLinus Torvalds return status; 62641da177e4SLinus Torvalds } 62651da177e4SLinus Torvalds 62661da177e4SLinus Torvalds /* 62671da177e4SLinus Torvalds * Decode LINK response 62681da177e4SLinus Torvalds */ 6269bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6270bf269551SChuck Lever struct nfs4_link_res *res) 62711da177e4SLinus Torvalds { 62721da177e4SLinus Torvalds struct compound_hdr hdr; 62731da177e4SLinus Torvalds int status; 62741da177e4SLinus Torvalds 6275bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62769b7b9fccSAndy Adamson if (status) 62779b7b9fccSAndy Adamson goto out; 6278bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62799b7b9fccSAndy Adamson if (status) 62801da177e4SLinus Torvalds goto out; 6281bf269551SChuck Lever status = decode_putfh(xdr); 6282bf269551SChuck Lever if (status) 62831da177e4SLinus Torvalds goto out; 6284bf269551SChuck Lever status = decode_savefh(xdr); 6285bf269551SChuck Lever if (status) 62861da177e4SLinus Torvalds goto out; 6287bf269551SChuck Lever status = decode_putfh(xdr); 6288bf269551SChuck Lever if (status) 62891da177e4SLinus Torvalds goto out; 6290bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6291bf269551SChuck Lever if (status) 629291ba2eeeSTrond Myklebust goto out; 629391ba2eeeSTrond Myklebust /* 629491ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 629591ba2eeeSTrond Myklebust * filehandle. 629691ba2eeeSTrond Myklebust */ 6297bf269551SChuck Lever status = decode_restorefh(xdr); 6298bf269551SChuck Lever if (status) 629991ba2eeeSTrond Myklebust goto out; 6300aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 63011da177e4SLinus Torvalds out: 63021da177e4SLinus Torvalds return status; 63031da177e4SLinus Torvalds } 63041da177e4SLinus Torvalds 63051da177e4SLinus Torvalds /* 63061da177e4SLinus Torvalds * Decode CREATE response 63071da177e4SLinus Torvalds */ 6308bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6309bf269551SChuck Lever struct nfs4_create_res *res) 63101da177e4SLinus Torvalds { 63111da177e4SLinus Torvalds struct compound_hdr hdr; 63121da177e4SLinus Torvalds int status; 63131da177e4SLinus Torvalds 6314bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63159b7b9fccSAndy Adamson if (status) 63169b7b9fccSAndy Adamson goto out; 6317bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63189b7b9fccSAndy Adamson if (status) 63191da177e4SLinus Torvalds goto out; 6320bf269551SChuck Lever status = decode_putfh(xdr); 6321bf269551SChuck Lever if (status) 63221da177e4SLinus Torvalds goto out; 6323bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6324bf269551SChuck Lever if (status) 63251da177e4SLinus Torvalds goto out; 6326bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6327bf269551SChuck Lever if (status) 63281da177e4SLinus Torvalds goto out; 6329aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 63301da177e4SLinus Torvalds out: 63311da177e4SLinus Torvalds return status; 63321da177e4SLinus Torvalds } 63331da177e4SLinus Torvalds 63341da177e4SLinus Torvalds /* 63351da177e4SLinus Torvalds * Decode SYMLINK response 63361da177e4SLinus Torvalds */ 6337bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6338bf269551SChuck Lever struct nfs4_create_res *res) 63391da177e4SLinus Torvalds { 6340bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 63411da177e4SLinus Torvalds } 63421da177e4SLinus Torvalds 63431da177e4SLinus Torvalds /* 63441da177e4SLinus Torvalds * Decode GETATTR response 63451da177e4SLinus Torvalds */ 6346bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6347bf269551SChuck Lever struct nfs4_getattr_res *res) 63481da177e4SLinus Torvalds { 63491da177e4SLinus Torvalds struct compound_hdr hdr; 63501da177e4SLinus Torvalds int status; 63511da177e4SLinus Torvalds 6352bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63531da177e4SLinus Torvalds if (status) 63541da177e4SLinus Torvalds goto out; 6355bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63569b7b9fccSAndy Adamson if (status) 63579b7b9fccSAndy Adamson goto out; 6358bf269551SChuck Lever status = decode_putfh(xdr); 63591da177e4SLinus Torvalds if (status) 63601da177e4SLinus Torvalds goto out; 6361aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 63621da177e4SLinus Torvalds out: 63631da177e4SLinus Torvalds return status; 63641da177e4SLinus Torvalds } 63651da177e4SLinus Torvalds 636623ec6965SJ. Bruce Fields /* 636723ec6965SJ. Bruce Fields * Encode an SETACL request 636823ec6965SJ. Bruce Fields */ 63699f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 63709f06c719SChuck Lever struct nfs_setaclargs *args) 637123ec6965SJ. Bruce Fields { 637223ec6965SJ. Bruce Fields struct compound_hdr hdr = { 637366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 637423ec6965SJ. Bruce Fields }; 637523ec6965SJ. Bruce Fields 63769f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 63779f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 63789f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 63799f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6380d017931cSAndy Adamson encode_nops(&hdr); 638123ec6965SJ. Bruce Fields } 638205d564feSAndy Adamson 638323ec6965SJ. Bruce Fields /* 638423ec6965SJ. Bruce Fields * Decode SETACL response 638523ec6965SJ. Bruce Fields */ 638623ec6965SJ. Bruce Fields static int 6387bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 638873c403a9SBenny Halevy struct nfs_setaclres *res) 638923ec6965SJ. Bruce Fields { 639023ec6965SJ. Bruce Fields struct compound_hdr hdr; 639123ec6965SJ. Bruce Fields int status; 639223ec6965SJ. Bruce Fields 6393bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 639423ec6965SJ. Bruce Fields if (status) 639523ec6965SJ. Bruce Fields goto out; 6396bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63979b7b9fccSAndy Adamson if (status) 63989b7b9fccSAndy Adamson goto out; 6399bf269551SChuck Lever status = decode_putfh(xdr); 640023ec6965SJ. Bruce Fields if (status) 640123ec6965SJ. Bruce Fields goto out; 6402bf269551SChuck Lever status = decode_setattr(xdr); 640323ec6965SJ. Bruce Fields out: 640423ec6965SJ. Bruce Fields return status; 640523ec6965SJ. Bruce Fields } 64061da177e4SLinus Torvalds 64071da177e4SLinus Torvalds /* 6408029d105eSJ. Bruce Fields * Decode GETACL response 6409029d105eSJ. Bruce Fields */ 6410029d105eSJ. Bruce Fields static int 6411bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6412663c79b3SBenny Halevy struct nfs_getaclres *res) 6413029d105eSJ. Bruce Fields { 6414029d105eSJ. Bruce Fields struct compound_hdr hdr; 6415029d105eSJ. Bruce Fields int status; 6416029d105eSJ. Bruce Fields 6417331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6418331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6419331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6420331818f1STrond Myklebust } 6421bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6422029d105eSJ. Bruce Fields if (status) 6423029d105eSJ. Bruce Fields goto out; 6424bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64259b7b9fccSAndy Adamson if (status) 64269b7b9fccSAndy Adamson goto out; 6427bf269551SChuck Lever status = decode_putfh(xdr); 6428029d105eSJ. Bruce Fields if (status) 6429029d105eSJ. Bruce Fields goto out; 6430bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6431029d105eSJ. Bruce Fields 6432029d105eSJ. Bruce Fields out: 6433029d105eSJ. Bruce Fields return status; 6434029d105eSJ. Bruce Fields } 6435029d105eSJ. Bruce Fields 6436029d105eSJ. Bruce Fields /* 64371da177e4SLinus Torvalds * Decode CLOSE response 64381da177e4SLinus Torvalds */ 6439bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6440bf269551SChuck Lever struct nfs_closeres *res) 64411da177e4SLinus Torvalds { 64421da177e4SLinus Torvalds struct compound_hdr hdr; 64431da177e4SLinus Torvalds int status; 64441da177e4SLinus Torvalds 6445bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64461da177e4SLinus Torvalds if (status) 64471da177e4SLinus Torvalds goto out; 6448bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64499b7b9fccSAndy Adamson if (status) 64509b7b9fccSAndy Adamson goto out; 6451bf269551SChuck Lever status = decode_putfh(xdr); 64521da177e4SLinus Torvalds if (status) 64531da177e4SLinus Torvalds goto out; 6454cf805165STrond Myklebust if (res->lr_res) { 6455cf805165STrond Myklebust status = decode_layoutreturn(xdr, res->lr_res); 6456cf805165STrond Myklebust res->lr_ret = status; 6457cf805165STrond Myklebust if (status) 6458cf805165STrond Myklebust goto out; 6459cf805165STrond Myklebust } 6460d8d84983STrond Myklebust if (res->fattr != NULL) { 6461d8d84983STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6462516a6af6STrond Myklebust if (status != 0) 6463516a6af6STrond Myklebust goto out; 6464d8d84983STrond Myklebust } 6465d8d84983STrond Myklebust status = decode_close(xdr, res); 64661da177e4SLinus Torvalds out: 64671da177e4SLinus Torvalds return status; 64681da177e4SLinus Torvalds } 64691da177e4SLinus Torvalds 64701da177e4SLinus Torvalds /* 64711da177e4SLinus Torvalds * Decode OPEN response 64721da177e4SLinus Torvalds */ 6473bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6474bf269551SChuck Lever struct nfs_openres *res) 64751da177e4SLinus Torvalds { 64761da177e4SLinus Torvalds struct compound_hdr hdr; 64771da177e4SLinus Torvalds int status; 64781da177e4SLinus Torvalds 6479bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64801da177e4SLinus Torvalds if (status) 64811da177e4SLinus Torvalds goto out; 6482bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64839b7b9fccSAndy Adamson if (status) 64849b7b9fccSAndy Adamson goto out; 6485bf269551SChuck Lever status = decode_putfh(xdr); 64861da177e4SLinus Torvalds if (status) 64871da177e4SLinus Torvalds goto out; 6488bf269551SChuck Lever status = decode_open(xdr, res); 64891da177e4SLinus Torvalds if (status) 64901da177e4SLinus Torvalds goto out; 649101913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 649201913b49SWeston Andros Adamson if (status) 64931da177e4SLinus Torvalds goto out; 6494ae2bb032SWeston Andros Adamson if (res->access_request) 64956168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 6496aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->f_attr, res->f_label, res->server); 64971da177e4SLinus Torvalds out: 64981da177e4SLinus Torvalds return status; 64991da177e4SLinus Torvalds } 65001da177e4SLinus Torvalds 65011da177e4SLinus Torvalds /* 65021da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 65031da177e4SLinus Torvalds */ 6504bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6505bf269551SChuck Lever struct xdr_stream *xdr, 6506bf269551SChuck Lever struct nfs_open_confirmres *res) 65071da177e4SLinus Torvalds { 65081da177e4SLinus Torvalds struct compound_hdr hdr; 65091da177e4SLinus Torvalds int status; 65101da177e4SLinus Torvalds 6511bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65121da177e4SLinus Torvalds if (status) 65131da177e4SLinus Torvalds goto out; 6514bf269551SChuck Lever status = decode_putfh(xdr); 65151da177e4SLinus Torvalds if (status) 65161da177e4SLinus Torvalds goto out; 6517bf269551SChuck Lever status = decode_open_confirm(xdr, res); 65181da177e4SLinus Torvalds out: 65191da177e4SLinus Torvalds return status; 65201da177e4SLinus Torvalds } 65211da177e4SLinus Torvalds 65221da177e4SLinus Torvalds /* 65231da177e4SLinus Torvalds * Decode OPEN response 65241da177e4SLinus Torvalds */ 6525bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6526bf269551SChuck Lever struct xdr_stream *xdr, 6527bf269551SChuck Lever struct nfs_openres *res) 65281da177e4SLinus Torvalds { 65291da177e4SLinus Torvalds struct compound_hdr hdr; 65301da177e4SLinus Torvalds int status; 65311da177e4SLinus Torvalds 6532bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65331da177e4SLinus Torvalds if (status) 65341da177e4SLinus Torvalds goto out; 6535bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65369b7b9fccSAndy Adamson if (status) 65379b7b9fccSAndy Adamson goto out; 6538bf269551SChuck Lever status = decode_putfh(xdr); 65391da177e4SLinus Torvalds if (status) 65401da177e4SLinus Torvalds goto out; 6541bf269551SChuck Lever status = decode_open(xdr, res); 6542864472e9STrond Myklebust if (status) 6543864472e9STrond Myklebust goto out; 6544ae2bb032SWeston Andros Adamson if (res->access_request) 65456168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 65466926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 65471da177e4SLinus Torvalds out: 65481da177e4SLinus Torvalds return status; 65491da177e4SLinus Torvalds } 65501da177e4SLinus Torvalds 65511da177e4SLinus Torvalds /* 65521da177e4SLinus Torvalds * Decode SETATTR response 65531da177e4SLinus Torvalds */ 6554bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6555bf269551SChuck Lever struct xdr_stream *xdr, 6556bf269551SChuck Lever struct nfs_setattrres *res) 65571da177e4SLinus Torvalds { 65581da177e4SLinus Torvalds struct compound_hdr hdr; 65591da177e4SLinus Torvalds int status; 65601da177e4SLinus Torvalds 6561bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65621da177e4SLinus Torvalds if (status) 65631da177e4SLinus Torvalds goto out; 6564bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65659b7b9fccSAndy Adamson if (status) 65669b7b9fccSAndy Adamson goto out; 6567bf269551SChuck Lever status = decode_putfh(xdr); 65681da177e4SLinus Torvalds if (status) 65691da177e4SLinus Torvalds goto out; 6570bf269551SChuck Lever status = decode_setattr(xdr); 65711da177e4SLinus Torvalds if (status) 65721da177e4SLinus Torvalds goto out; 6573aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 65741da177e4SLinus Torvalds out: 65751da177e4SLinus Torvalds return status; 65761da177e4SLinus Torvalds } 65771da177e4SLinus Torvalds 65781da177e4SLinus Torvalds /* 65791da177e4SLinus Torvalds * Decode LOCK response 65801da177e4SLinus Torvalds */ 6581bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6582bf269551SChuck Lever struct nfs_lock_res *res) 65831da177e4SLinus Torvalds { 65841da177e4SLinus Torvalds struct compound_hdr hdr; 65851da177e4SLinus Torvalds int status; 65861da177e4SLinus Torvalds 6587bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65881da177e4SLinus Torvalds if (status) 65891da177e4SLinus Torvalds goto out; 6590bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65919b7b9fccSAndy Adamson if (status) 65929b7b9fccSAndy Adamson goto out; 6593bf269551SChuck Lever status = decode_putfh(xdr); 65941da177e4SLinus Torvalds if (status) 65951da177e4SLinus Torvalds goto out; 6596bf269551SChuck Lever status = decode_lock(xdr, res); 65971da177e4SLinus Torvalds out: 65981da177e4SLinus Torvalds return status; 65991da177e4SLinus Torvalds } 66001da177e4SLinus Torvalds 66011da177e4SLinus Torvalds /* 66021da177e4SLinus Torvalds * Decode LOCKT response 66031da177e4SLinus Torvalds */ 6604bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6605bf269551SChuck Lever struct nfs_lockt_res *res) 66061da177e4SLinus Torvalds { 66071da177e4SLinus Torvalds struct compound_hdr hdr; 66081da177e4SLinus Torvalds int status; 66091da177e4SLinus Torvalds 6610bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66111da177e4SLinus Torvalds if (status) 66121da177e4SLinus Torvalds goto out; 6613bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66149b7b9fccSAndy Adamson if (status) 66159b7b9fccSAndy Adamson goto out; 6616bf269551SChuck Lever status = decode_putfh(xdr); 66171da177e4SLinus Torvalds if (status) 66181da177e4SLinus Torvalds goto out; 6619bf269551SChuck Lever status = decode_lockt(xdr, res); 66201da177e4SLinus Torvalds out: 66211da177e4SLinus Torvalds return status; 66221da177e4SLinus Torvalds } 66231da177e4SLinus Torvalds 66241da177e4SLinus Torvalds /* 66251da177e4SLinus Torvalds * Decode LOCKU response 66261da177e4SLinus Torvalds */ 6627bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6628bf269551SChuck Lever struct nfs_locku_res *res) 66291da177e4SLinus Torvalds { 66301da177e4SLinus Torvalds struct compound_hdr hdr; 66311da177e4SLinus Torvalds int status; 66321da177e4SLinus Torvalds 6633bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66341da177e4SLinus Torvalds if (status) 66351da177e4SLinus Torvalds goto out; 6636bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66379b7b9fccSAndy Adamson if (status) 66389b7b9fccSAndy Adamson goto out; 6639bf269551SChuck Lever status = decode_putfh(xdr); 66401da177e4SLinus Torvalds if (status) 66411da177e4SLinus Torvalds goto out; 6642bf269551SChuck Lever status = decode_locku(xdr, res); 66431da177e4SLinus Torvalds out: 66441da177e4SLinus Torvalds return status; 66451da177e4SLinus Torvalds } 66461da177e4SLinus Torvalds 6647bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6648bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6649d3c7b7ccSTrond Myklebust { 6650d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6651d3c7b7ccSTrond Myklebust int status; 6652d3c7b7ccSTrond Myklebust 6653bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6654d3c7b7ccSTrond Myklebust if (!status) 6655bf269551SChuck Lever status = decode_release_lockowner(xdr); 6656d3c7b7ccSTrond Myklebust return status; 6657d3c7b7ccSTrond Myklebust } 6658d3c7b7ccSTrond Myklebust 66591da177e4SLinus Torvalds /* 66601da177e4SLinus Torvalds * Decode READLINK response 66611da177e4SLinus Torvalds */ 6662bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6663bf269551SChuck Lever struct xdr_stream *xdr, 6664f50c7000SBenny Halevy struct nfs4_readlink_res *res) 66651da177e4SLinus Torvalds { 66661da177e4SLinus Torvalds struct compound_hdr hdr; 66671da177e4SLinus Torvalds int status; 66681da177e4SLinus Torvalds 6669bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66701da177e4SLinus Torvalds if (status) 66711da177e4SLinus Torvalds goto out; 6672bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66739b7b9fccSAndy Adamson if (status) 66749b7b9fccSAndy Adamson goto out; 6675bf269551SChuck Lever status = decode_putfh(xdr); 66761da177e4SLinus Torvalds if (status) 66771da177e4SLinus Torvalds goto out; 6678bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 66791da177e4SLinus Torvalds out: 66801da177e4SLinus Torvalds return status; 66811da177e4SLinus Torvalds } 66821da177e4SLinus Torvalds 66831da177e4SLinus Torvalds /* 66841da177e4SLinus Torvalds * Decode READDIR response 66851da177e4SLinus Torvalds */ 6686bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6687bf269551SChuck Lever struct nfs4_readdir_res *res) 66881da177e4SLinus Torvalds { 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_readdir(xdr, rqstp, res); 67021da177e4SLinus Torvalds out: 67031da177e4SLinus Torvalds return status; 67041da177e4SLinus Torvalds } 67051da177e4SLinus Torvalds 67061da177e4SLinus Torvalds /* 67071da177e4SLinus Torvalds * Decode Read response 67081da177e4SLinus Torvalds */ 6709bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 67109137bdf3SAnna Schumaker struct nfs_pgio_res *res) 67111da177e4SLinus Torvalds { 67121da177e4SLinus Torvalds struct compound_hdr hdr; 67131da177e4SLinus Torvalds int status; 67141da177e4SLinus Torvalds 6715bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6716aabff4ddSPeng Tao res->op_status = hdr.status; 67171da177e4SLinus Torvalds if (status) 67181da177e4SLinus Torvalds goto out; 6719bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67209b7b9fccSAndy Adamson if (status) 67219b7b9fccSAndy Adamson goto out; 6722bf269551SChuck Lever status = decode_putfh(xdr); 67231da177e4SLinus Torvalds if (status) 67241da177e4SLinus Torvalds goto out; 6725bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 67261da177e4SLinus Torvalds if (!status) 67271da177e4SLinus Torvalds status = res->count; 67281da177e4SLinus Torvalds out: 67291da177e4SLinus Torvalds return status; 67301da177e4SLinus Torvalds } 67311da177e4SLinus Torvalds 67321da177e4SLinus Torvalds /* 67331da177e4SLinus Torvalds * Decode WRITE response 67341da177e4SLinus Torvalds */ 6735bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 67369137bdf3SAnna Schumaker struct nfs_pgio_res *res) 67371da177e4SLinus Torvalds { 67381da177e4SLinus Torvalds struct compound_hdr hdr; 67391da177e4SLinus Torvalds int status; 67401da177e4SLinus Torvalds 6741bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6742aabff4ddSPeng Tao res->op_status = hdr.status; 67431da177e4SLinus Torvalds if (status) 67441da177e4SLinus Torvalds goto out; 6745bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67469b7b9fccSAndy Adamson if (status) 67479b7b9fccSAndy Adamson goto out; 6748bf269551SChuck Lever status = decode_putfh(xdr); 67491da177e4SLinus Torvalds if (status) 67501da177e4SLinus Torvalds goto out; 6751bf269551SChuck Lever status = decode_write(xdr, res); 67524f9838c7STrond Myklebust if (status) 67534f9838c7STrond Myklebust goto out; 67547ffd1064SFred Isaman if (res->fattr) 67556926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 67561da177e4SLinus Torvalds if (!status) 67571da177e4SLinus Torvalds status = res->count; 67581da177e4SLinus Torvalds out: 67591da177e4SLinus Torvalds return status; 67601da177e4SLinus Torvalds } 67611da177e4SLinus Torvalds 67621da177e4SLinus Torvalds /* 67631da177e4SLinus Torvalds * Decode COMMIT response 67641da177e4SLinus Torvalds */ 6765bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 67660b7c0153SFred Isaman struct nfs_commitres *res) 67671da177e4SLinus Torvalds { 67681da177e4SLinus Torvalds struct compound_hdr hdr; 67691da177e4SLinus Torvalds int status; 67701da177e4SLinus Torvalds 6771bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6772aabff4ddSPeng Tao res->op_status = hdr.status; 67731da177e4SLinus Torvalds if (status) 67741da177e4SLinus Torvalds goto out; 6775bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67769b7b9fccSAndy Adamson if (status) 67779b7b9fccSAndy Adamson goto out; 6778bf269551SChuck Lever status = decode_putfh(xdr); 67791da177e4SLinus Torvalds if (status) 67801da177e4SLinus Torvalds goto out; 6781bf269551SChuck Lever status = decode_commit(xdr, res); 67821da177e4SLinus Torvalds out: 67831da177e4SLinus Torvalds return status; 67841da177e4SLinus Torvalds } 67851da177e4SLinus Torvalds 67861da177e4SLinus Torvalds /* 67878b173218SRicardo Labiaga * Decode FSINFO response 67881da177e4SLinus Torvalds */ 6789bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 67903dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 67911da177e4SLinus Torvalds { 67921da177e4SLinus Torvalds struct compound_hdr hdr; 67931da177e4SLinus Torvalds int status; 67941da177e4SLinus Torvalds 6795bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67961da177e4SLinus Torvalds if (!status) 6797bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67989b7b9fccSAndy Adamson if (!status) 6799bf269551SChuck Lever status = decode_putfh(xdr); 68001da177e4SLinus Torvalds if (!status) 6801bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 68021da177e4SLinus Torvalds return status; 68031da177e4SLinus Torvalds } 68041da177e4SLinus Torvalds 68051da177e4SLinus Torvalds /* 68068b173218SRicardo Labiaga * Decode PATHCONF response 68071da177e4SLinus Torvalds */ 6808bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6809d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 68101da177e4SLinus Torvalds { 68111da177e4SLinus Torvalds struct compound_hdr hdr; 68121da177e4SLinus Torvalds int status; 68131da177e4SLinus Torvalds 6814bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68151da177e4SLinus Torvalds if (!status) 6816bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68179b7b9fccSAndy Adamson if (!status) 6818bf269551SChuck Lever status = decode_putfh(xdr); 68191da177e4SLinus Torvalds if (!status) 6820bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 68211da177e4SLinus Torvalds return status; 68221da177e4SLinus Torvalds } 68231da177e4SLinus Torvalds 68241da177e4SLinus Torvalds /* 68258b173218SRicardo Labiaga * Decode STATFS response 68261da177e4SLinus Torvalds */ 6827bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 682824ad148aSBenny Halevy struct nfs4_statfs_res *res) 68291da177e4SLinus Torvalds { 68301da177e4SLinus Torvalds struct compound_hdr hdr; 68311da177e4SLinus Torvalds int status; 68321da177e4SLinus Torvalds 6833bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68341da177e4SLinus Torvalds if (!status) 6835bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68369b7b9fccSAndy Adamson if (!status) 6837bf269551SChuck Lever status = decode_putfh(xdr); 68381da177e4SLinus Torvalds if (!status) 6839bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 68401da177e4SLinus Torvalds return status; 68411da177e4SLinus Torvalds } 68421da177e4SLinus Torvalds 68431da177e4SLinus Torvalds /* 68448b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 68451da177e4SLinus Torvalds */ 6846bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6847bf269551SChuck Lever struct xdr_stream *xdr, 6848bf269551SChuck Lever struct nfs4_server_caps_res *res) 68491da177e4SLinus Torvalds { 68501da177e4SLinus Torvalds struct compound_hdr hdr; 68511da177e4SLinus Torvalds int status; 68521da177e4SLinus Torvalds 6853bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68549b7b9fccSAndy Adamson if (status) 68559b7b9fccSAndy Adamson goto out; 6856bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68579b7b9fccSAndy Adamson if (status) 68581da177e4SLinus Torvalds goto out; 6859bf269551SChuck Lever status = decode_putfh(xdr); 6860bf269551SChuck Lever if (status) 68611da177e4SLinus Torvalds goto out; 6862bf269551SChuck Lever status = decode_server_caps(xdr, res); 68631da177e4SLinus Torvalds out: 68641da177e4SLinus Torvalds return status; 68651da177e4SLinus Torvalds } 68661da177e4SLinus Torvalds 68671da177e4SLinus Torvalds /* 68681da177e4SLinus Torvalds * Decode RENEW response 68691da177e4SLinus Torvalds */ 6870bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6871bf269551SChuck Lever void *__unused) 68721da177e4SLinus Torvalds { 68731da177e4SLinus Torvalds struct compound_hdr hdr; 68741da177e4SLinus Torvalds int status; 68751da177e4SLinus Torvalds 6876bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68771da177e4SLinus Torvalds if (!status) 6878bf269551SChuck Lever status = decode_renew(xdr); 68791da177e4SLinus Torvalds return status; 68801da177e4SLinus Torvalds } 68811da177e4SLinus Torvalds 68821da177e4SLinus Torvalds /* 68838b173218SRicardo Labiaga * Decode SETCLIENTID response 68841da177e4SLinus Torvalds */ 6885bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6886bf269551SChuck Lever struct xdr_stream *xdr, 6887bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 68881da177e4SLinus Torvalds { 68891da177e4SLinus Torvalds struct compound_hdr hdr; 68901da177e4SLinus Torvalds int status; 68911da177e4SLinus Torvalds 6892bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68931da177e4SLinus Torvalds if (!status) 6894bf269551SChuck Lever status = decode_setclientid(xdr, res); 68951da177e4SLinus Torvalds return status; 68961da177e4SLinus Torvalds } 68971da177e4SLinus Torvalds 68981da177e4SLinus Torvalds /* 68998b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 69001da177e4SLinus Torvalds */ 6901bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 690283ca7f5aSChuck Lever struct xdr_stream *xdr) 69031da177e4SLinus Torvalds { 69041da177e4SLinus Torvalds struct compound_hdr hdr; 69051da177e4SLinus Torvalds int status; 69061da177e4SLinus Torvalds 6907bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69081da177e4SLinus Torvalds if (!status) 6909bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 69101da177e4SLinus Torvalds return status; 69111da177e4SLinus Torvalds } 69121da177e4SLinus Torvalds 69131da177e4SLinus Torvalds /* 69148b173218SRicardo Labiaga * Decode DELEGRETURN response 69151da177e4SLinus Torvalds */ 6916bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6917bf269551SChuck Lever struct xdr_stream *xdr, 6918bf269551SChuck Lever struct nfs4_delegreturnres *res) 69191da177e4SLinus Torvalds { 69201da177e4SLinus Torvalds struct compound_hdr hdr; 69211da177e4SLinus Torvalds int status; 69221da177e4SLinus Torvalds 6923bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69249b7b9fccSAndy Adamson if (status) 69259b7b9fccSAndy Adamson goto out; 6926bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 69279b7b9fccSAndy Adamson if (status) 6928fa178f29STrond Myklebust goto out; 6929bf269551SChuck Lever status = decode_putfh(xdr); 6930fa178f29STrond Myklebust if (status != 0) 6931fa178f29STrond Myklebust goto out; 6932586f1c39STrond Myklebust if (res->lr_res) { 6933586f1c39STrond Myklebust status = decode_layoutreturn(xdr, res->lr_res); 6934586f1c39STrond Myklebust res->lr_ret = status; 6935586f1c39STrond Myklebust if (status) 6936586f1c39STrond Myklebust goto out; 6937586f1c39STrond Myklebust } 69388ac2b422STrond Myklebust if (res->fattr) { 6939e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6940556ae3bbSJeff Layton if (status != 0) 6941556ae3bbSJeff Layton goto out; 69428ac2b422STrond Myklebust } 6943e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6944fa178f29STrond Myklebust out: 69451da177e4SLinus Torvalds return status; 69461da177e4SLinus Torvalds } 69471da177e4SLinus Torvalds 6948683b57b4STrond Myklebust /* 69498b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6950683b57b4STrond Myklebust */ 6951bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6952bf269551SChuck Lever struct xdr_stream *xdr, 695322958463SBenny Halevy struct nfs4_fs_locations_res *res) 6954683b57b4STrond Myklebust { 6955683b57b4STrond Myklebust struct compound_hdr hdr; 6956683b57b4STrond Myklebust int status; 6957683b57b4STrond Myklebust 6958bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 69599b7b9fccSAndy Adamson if (status) 69609b7b9fccSAndy Adamson goto out; 6961bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 69629b7b9fccSAndy Adamson if (status) 6963683b57b4STrond Myklebust goto out; 6964bf269551SChuck Lever status = decode_putfh(xdr); 6965bf269551SChuck Lever if (status) 6966683b57b4STrond Myklebust goto out; 6967b03d735bSChuck Lever if (res->migration) { 6968b03d735bSChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6969b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6970b03d735bSChuck Lever &res->fs_locations->fattr, 6971b03d735bSChuck Lever NULL, res->fs_locations, 6972b03d735bSChuck Lever NULL, res->fs_locations->server); 6973b03d735bSChuck Lever if (status) 6974b03d735bSChuck Lever goto out; 6975b03d735bSChuck Lever if (res->renew) 6976b03d735bSChuck Lever status = decode_renew(xdr); 6977b03d735bSChuck Lever } else { 6978bf269551SChuck Lever status = decode_lookup(xdr); 6979bf269551SChuck Lever if (status) 6980683b57b4STrond Myklebust goto out; 6981bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6982b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6983b03d735bSChuck Lever &res->fs_locations->fattr, 69848b7e3f49STrond Myklebust NULL, res->fs_locations, 6985aa9c2669SDavid Quigley NULL, res->fs_locations->server); 6986b03d735bSChuck Lever } 6987683b57b4STrond Myklebust out: 6988683b57b4STrond Myklebust return status; 6989683b57b4STrond Myklebust } 6990683b57b4STrond Myklebust 69915a5ea0d4SBryan Schumaker /* 69925a5ea0d4SBryan Schumaker * Decode SECINFO response 69935a5ea0d4SBryan Schumaker */ 69945a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 69955a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 69965a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 69975a5ea0d4SBryan Schumaker { 69985a5ea0d4SBryan Schumaker struct compound_hdr hdr; 69995a5ea0d4SBryan Schumaker int status; 70005a5ea0d4SBryan Schumaker 70015a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 70025a5ea0d4SBryan Schumaker if (status) 70035a5ea0d4SBryan Schumaker goto out; 70045a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 70055a5ea0d4SBryan Schumaker if (status) 70065a5ea0d4SBryan Schumaker goto out; 70075a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 70085a5ea0d4SBryan Schumaker if (status) 70095a5ea0d4SBryan Schumaker goto out; 70105a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 70115a5ea0d4SBryan Schumaker out: 70125a5ea0d4SBryan Schumaker return status; 70135a5ea0d4SBryan Schumaker } 70145a5ea0d4SBryan Schumaker 701544c99933SChuck Lever /* 701644c99933SChuck Lever * Decode FSID_PRESENT response 701744c99933SChuck Lever */ 701844c99933SChuck Lever static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp, 701944c99933SChuck Lever struct xdr_stream *xdr, 702044c99933SChuck Lever struct nfs4_fsid_present_res *res) 702144c99933SChuck Lever { 702244c99933SChuck Lever struct compound_hdr hdr; 702344c99933SChuck Lever int status; 702444c99933SChuck Lever 702544c99933SChuck Lever status = decode_compound_hdr(xdr, &hdr); 702644c99933SChuck Lever if (status) 702744c99933SChuck Lever goto out; 702844c99933SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 702944c99933SChuck Lever if (status) 703044c99933SChuck Lever goto out; 703144c99933SChuck Lever status = decode_putfh(xdr); 703244c99933SChuck Lever if (status) 703344c99933SChuck Lever goto out; 703444c99933SChuck Lever status = decode_getfh(xdr, res->fh); 703544c99933SChuck Lever if (status) 703644c99933SChuck Lever goto out; 703744c99933SChuck Lever if (res->renew) 703844c99933SChuck Lever status = decode_renew(xdr); 703944c99933SChuck Lever out: 704044c99933SChuck Lever return status; 704144c99933SChuck Lever } 704244c99933SChuck Lever 704399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 704499fe60d0SBenny Halevy /* 70457c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 70467c44f1aeSWeston Andros Adamson */ 70477c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 70487c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 70497c44f1aeSWeston Andros Adamson void *res) 70507c44f1aeSWeston Andros Adamson { 70517c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 70527c44f1aeSWeston Andros Adamson int status; 70537c44f1aeSWeston Andros Adamson 70547c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 70557c44f1aeSWeston Andros Adamson if (!status) 70567c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 70577c44f1aeSWeston Andros Adamson return status; 70587c44f1aeSWeston Andros Adamson } 70597c44f1aeSWeston Andros Adamson 70607c44f1aeSWeston Andros Adamson /* 70618b173218SRicardo Labiaga * Decode EXCHANGE_ID response 706299fe60d0SBenny Halevy */ 7063bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 7064bf269551SChuck Lever struct xdr_stream *xdr, 706599fe60d0SBenny Halevy void *res) 706699fe60d0SBenny Halevy { 706799fe60d0SBenny Halevy struct compound_hdr hdr; 706899fe60d0SBenny Halevy int status; 706999fe60d0SBenny Halevy 7070bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 707199fe60d0SBenny Halevy if (!status) 7072bf269551SChuck Lever status = decode_exchange_id(xdr, res); 707399fe60d0SBenny Halevy return status; 707499fe60d0SBenny Halevy } 70752050f0ccSAndy Adamson 70762050f0ccSAndy Adamson /* 70778b173218SRicardo Labiaga * Decode CREATE_SESSION response 7078fc931582SAndy Adamson */ 7079bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 7080bf269551SChuck Lever struct xdr_stream *xdr, 7081fc931582SAndy Adamson struct nfs41_create_session_res *res) 7082fc931582SAndy Adamson { 7083fc931582SAndy Adamson struct compound_hdr hdr; 7084fc931582SAndy Adamson int status; 7085fc931582SAndy Adamson 7086bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7087fc931582SAndy Adamson if (!status) 7088bf269551SChuck Lever status = decode_create_session(xdr, res); 7089fc931582SAndy Adamson return status; 7090fc931582SAndy Adamson } 7091fc931582SAndy Adamson 7092fc931582SAndy Adamson /* 70938b173218SRicardo Labiaga * Decode DESTROY_SESSION response 70940f3e66c6SAndy Adamson */ 7095bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 7096bf269551SChuck Lever struct xdr_stream *xdr, 7097bf269551SChuck Lever void *res) 70980f3e66c6SAndy Adamson { 70990f3e66c6SAndy Adamson struct compound_hdr hdr; 71000f3e66c6SAndy Adamson int status; 71010f3e66c6SAndy Adamson 7102bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 71030f3e66c6SAndy Adamson if (!status) 7104bf269551SChuck Lever status = decode_destroy_session(xdr, res); 71050f3e66c6SAndy Adamson return status; 71060f3e66c6SAndy Adamson } 71070f3e66c6SAndy Adamson 71080f3e66c6SAndy Adamson /* 710966245539STrond Myklebust * Decode DESTROY_CLIENTID response 711066245539STrond Myklebust */ 711166245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 711266245539STrond Myklebust struct xdr_stream *xdr, 711366245539STrond Myklebust void *res) 711466245539STrond Myklebust { 711566245539STrond Myklebust struct compound_hdr hdr; 711666245539STrond Myklebust int status; 711766245539STrond Myklebust 711866245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 711966245539STrond Myklebust if (!status) 712066245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 712166245539STrond Myklebust return status; 712266245539STrond Myklebust } 712366245539STrond Myklebust 712466245539STrond Myklebust /* 71258b173218SRicardo Labiaga * Decode SEQUENCE response 7126fc01cea9SAndy Adamson */ 7127bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 7128bf269551SChuck Lever struct xdr_stream *xdr, 7129fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 7130fc01cea9SAndy Adamson { 7131fc01cea9SAndy Adamson struct compound_hdr hdr; 7132fc01cea9SAndy Adamson int status; 7133fc01cea9SAndy Adamson 7134bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7135fc01cea9SAndy Adamson if (!status) 7136bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 7137fc01cea9SAndy Adamson return status; 7138fc01cea9SAndy Adamson } 7139fc01cea9SAndy Adamson 7140fc01cea9SAndy Adamson /* 71418b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 71422050f0ccSAndy Adamson */ 7143bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 7144bf269551SChuck Lever struct xdr_stream *xdr, 71452050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 71462050f0ccSAndy Adamson { 71472050f0ccSAndy Adamson struct compound_hdr hdr; 71482050f0ccSAndy Adamson int status; 71492050f0ccSAndy Adamson 7150bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 71512050f0ccSAndy Adamson if (!status) 7152bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 71532050f0ccSAndy Adamson if (!status) 7154bf269551SChuck Lever status = decode_putrootfh(xdr); 71552050f0ccSAndy Adamson if (!status) 7156bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 71572050f0ccSAndy Adamson return status; 71582050f0ccSAndy Adamson } 715918019753SRicardo Labiaga 716018019753SRicardo Labiaga /* 716118019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 716218019753SRicardo Labiaga */ 7163bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 7164bf269551SChuck Lever struct xdr_stream *xdr, 716518019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 716618019753SRicardo Labiaga { 716718019753SRicardo Labiaga struct compound_hdr hdr; 716818019753SRicardo Labiaga int status; 716918019753SRicardo Labiaga 7170bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 717118019753SRicardo Labiaga if (!status) 7172bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 717318019753SRicardo Labiaga if (!status) 71748ee2b78aSHimangi Saraogi status = decode_reclaim_complete(xdr, NULL); 717518019753SRicardo Labiaga return status; 717618019753SRicardo Labiaga } 7177b1f69b75SAndy Adamson 7178b1f69b75SAndy Adamson /* 7179b1f69b75SAndy Adamson * Decode GETDEVINFO response 7180b1f69b75SAndy Adamson */ 7181bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 7182bf269551SChuck Lever struct xdr_stream *xdr, 7183b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 7184b1f69b75SAndy Adamson { 7185b1f69b75SAndy Adamson struct compound_hdr hdr; 7186b1f69b75SAndy Adamson int status; 7187b1f69b75SAndy Adamson 7188bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7189b1f69b75SAndy Adamson if (status != 0) 7190b1f69b75SAndy Adamson goto out; 7191bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7192b1f69b75SAndy Adamson if (status != 0) 7193b1f69b75SAndy Adamson goto out; 71944e590803STrond Myklebust status = decode_getdeviceinfo(xdr, res); 7195b1f69b75SAndy Adamson out: 7196b1f69b75SAndy Adamson return status; 7197b1f69b75SAndy Adamson } 7198b1f69b75SAndy Adamson 7199b1f69b75SAndy Adamson /* 7200b1f69b75SAndy Adamson * Decode LAYOUTGET response 7201b1f69b75SAndy Adamson */ 7202bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 7203bf269551SChuck Lever struct xdr_stream *xdr, 7204b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 7205b1f69b75SAndy Adamson { 7206b1f69b75SAndy Adamson struct compound_hdr hdr; 7207b1f69b75SAndy Adamson int status; 7208b1f69b75SAndy Adamson 7209bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7210b1f69b75SAndy Adamson if (status) 7211b1f69b75SAndy Adamson goto out; 7212bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7213b1f69b75SAndy Adamson if (status) 7214b1f69b75SAndy Adamson goto out; 7215bf269551SChuck Lever status = decode_putfh(xdr); 7216b1f69b75SAndy Adamson if (status) 7217b1f69b75SAndy Adamson goto out; 7218bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 7219b1f69b75SAndy Adamson out: 7220b1f69b75SAndy Adamson return status; 7221b1f69b75SAndy Adamson } 7222863a3c6cSAndy Adamson 7223863a3c6cSAndy Adamson /* 7224cbe82603SBenny Halevy * Decode LAYOUTRETURN response 7225cbe82603SBenny Halevy */ 7226cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 7227cbe82603SBenny Halevy struct xdr_stream *xdr, 7228cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 7229cbe82603SBenny Halevy { 7230cbe82603SBenny Halevy struct compound_hdr hdr; 7231cbe82603SBenny Halevy int status; 7232cbe82603SBenny Halevy 7233cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 7234cbe82603SBenny Halevy if (status) 7235cbe82603SBenny Halevy goto out; 7236cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 7237cbe82603SBenny Halevy if (status) 7238cbe82603SBenny Halevy goto out; 7239cbe82603SBenny Halevy status = decode_putfh(xdr); 7240cbe82603SBenny Halevy if (status) 7241cbe82603SBenny Halevy goto out; 7242cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 7243cbe82603SBenny Halevy out: 7244cbe82603SBenny Halevy return status; 7245cbe82603SBenny Halevy } 7246cbe82603SBenny Halevy 7247cbe82603SBenny Halevy /* 7248863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 7249863a3c6cSAndy Adamson */ 7250863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 7251863a3c6cSAndy Adamson struct xdr_stream *xdr, 7252863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 7253863a3c6cSAndy Adamson { 7254863a3c6cSAndy Adamson struct compound_hdr hdr; 7255863a3c6cSAndy Adamson int status; 7256863a3c6cSAndy Adamson 7257863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 7258863a3c6cSAndy Adamson if (status) 7259863a3c6cSAndy Adamson goto out; 7260863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 7261863a3c6cSAndy Adamson if (status) 7262863a3c6cSAndy Adamson goto out; 7263863a3c6cSAndy Adamson status = decode_putfh(xdr); 7264863a3c6cSAndy Adamson if (status) 7265863a3c6cSAndy Adamson goto out; 7266863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 7267863a3c6cSAndy Adamson if (status) 7268863a3c6cSAndy Adamson goto out; 72696926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 7270863a3c6cSAndy Adamson out: 7271863a3c6cSAndy Adamson return status; 7272863a3c6cSAndy Adamson } 7273fca78d6dSBryan Schumaker 7274fca78d6dSBryan Schumaker /* 7275fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7276fca78d6dSBryan Schumaker */ 7277fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7278fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7279fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 7280fca78d6dSBryan Schumaker { 7281fca78d6dSBryan Schumaker struct compound_hdr hdr; 7282fca78d6dSBryan Schumaker int status; 7283fca78d6dSBryan Schumaker 7284fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7285fca78d6dSBryan Schumaker if (status) 7286fca78d6dSBryan Schumaker goto out; 7287fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7288fca78d6dSBryan Schumaker if (status) 7289fca78d6dSBryan Schumaker goto out; 7290fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7291fca78d6dSBryan Schumaker if (status) 7292fca78d6dSBryan Schumaker goto out; 729331e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7294fca78d6dSBryan Schumaker out: 7295fca78d6dSBryan Schumaker return status; 7296fca78d6dSBryan Schumaker } 72977d974794SBryan Schumaker 72987d974794SBryan Schumaker /* 72997d974794SBryan Schumaker * Decode TEST_STATEID response 73007d974794SBryan Schumaker */ 73017d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 73027d974794SBryan Schumaker struct xdr_stream *xdr, 73037d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 73047d974794SBryan Schumaker { 73057d974794SBryan Schumaker struct compound_hdr hdr; 73067d974794SBryan Schumaker int status; 73077d974794SBryan Schumaker 73087d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 73097d974794SBryan Schumaker if (status) 73107d974794SBryan Schumaker goto out; 73117d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 73127d974794SBryan Schumaker if (status) 73137d974794SBryan Schumaker goto out; 73147d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 73157d974794SBryan Schumaker out: 73167d974794SBryan Schumaker return status; 73177d974794SBryan Schumaker } 73189aeda35fSBryan Schumaker 73199aeda35fSBryan Schumaker /* 73209aeda35fSBryan Schumaker * Decode FREE_STATEID response 73219aeda35fSBryan Schumaker */ 73229aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 73239aeda35fSBryan Schumaker struct xdr_stream *xdr, 73249aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 73259aeda35fSBryan Schumaker { 73269aeda35fSBryan Schumaker struct compound_hdr hdr; 73279aeda35fSBryan Schumaker int status; 73289aeda35fSBryan Schumaker 73299aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 73309aeda35fSBryan Schumaker if (status) 73319aeda35fSBryan Schumaker goto out; 73329aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 73339aeda35fSBryan Schumaker if (status) 73349aeda35fSBryan Schumaker goto out; 73359aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 73369aeda35fSBryan Schumaker out: 73379aeda35fSBryan Schumaker return status; 73389aeda35fSBryan Schumaker } 733999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 734099fe60d0SBenny Halevy 7341573c4e1eSChuck Lever /** 7342573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7343573c4e1eSChuck Lever * the local page cache. 7344573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7345573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7346573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7347573c4e1eSChuck Lever * 7348573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7349573c4e1eSChuck Lever * returned. 7350573c4e1eSChuck Lever * 7351573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7352573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7353573c4e1eSChuck Lever * on a directory already in our cache. 7354573c4e1eSChuck Lever */ 7355573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7356573c4e1eSChuck Lever int plus) 73571da177e4SLinus Torvalds { 7358256e48bbSTrond Myklebust unsigned int savep; 7359dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 73601da177e4SLinus Torvalds uint32_t len; 7361babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7362babddc72SBryan Schumaker if (unlikely(!p)) 7363babddc72SBryan Schumaker goto out_overflow; 7364c08e76d0SChuck Lever if (*p == xdr_zero) { 7365babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7366babddc72SBryan Schumaker if (unlikely(!p)) 7367babddc72SBryan Schumaker goto out_overflow; 7368c08e76d0SChuck Lever if (*p == xdr_zero) 7369573c4e1eSChuck Lever return -EAGAIN; 73701da177e4SLinus Torvalds entry->eof = 1; 7371573c4e1eSChuck Lever return -EBADCOOKIE; 73721da177e4SLinus Torvalds } 73731da177e4SLinus Torvalds 7374babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7375babddc72SBryan Schumaker if (unlikely(!p)) 7376babddc72SBryan Schumaker goto out_overflow; 73771da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 73781da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7379c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7380babddc72SBryan Schumaker 73819af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7382babddc72SBryan Schumaker if (unlikely(!p)) 7383babddc72SBryan Schumaker goto out_overflow; 73841da177e4SLinus Torvalds entry->name = (const char *) p; 73851da177e4SLinus Torvalds 73861da177e4SLinus Torvalds /* 73871da177e4SLinus Torvalds * In case the server doesn't return an inode number, 73881da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 73891da177e4SLinus Torvalds * since glibc seems to choke on it...) 73901da177e4SLinus Torvalds */ 73911da177e4SLinus Torvalds entry->ino = 1; 73924f082222STrond Myklebust entry->fattr->valid = 0; 73931da177e4SLinus Torvalds 73949af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7395babddc72SBryan Schumaker goto out_overflow; 73969af8c222STrond Myklebust 7397256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7398babddc72SBryan Schumaker goto out_overflow; 73999af8c222STrond Myklebust 7400573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 7401aa9c2669SDavid Quigley NULL, entry->label, entry->server) < 0) 7402babddc72SBryan Schumaker goto out_overflow; 740328331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 740428331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 740528331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 740682f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 74079af8c222STrond Myklebust 74080b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 74090b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 74100b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 74110b26a0bfSTrond Myklebust 7412573c4e1eSChuck Lever return 0; 7413babddc72SBryan Schumaker 7414babddc72SBryan Schumaker out_overflow: 7415babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7416573c4e1eSChuck Lever return -EAGAIN; 74171da177e4SLinus Torvalds } 74181da177e4SLinus Torvalds 74191da177e4SLinus Torvalds /* 74201da177e4SLinus Torvalds * We need to translate between nfs status return values and 74211da177e4SLinus Torvalds * the local errno values which may not be the same. 74221da177e4SLinus Torvalds */ 74231da177e4SLinus Torvalds static struct { 74241da177e4SLinus Torvalds int stat; 74251da177e4SLinus Torvalds int errno; 74261da177e4SLinus Torvalds } nfs_errtbl[] = { 74271da177e4SLinus Torvalds { NFS4_OK, 0 }, 7428856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7429856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7430856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7431856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7432856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7433856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7434856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7435856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7436856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7437856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7438856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7439856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7440856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7441856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7442856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7443856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7444856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7445856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7446856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7447856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7448856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7449856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7450fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7451856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7452856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7453856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7454856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7455856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7456856dff3dSBenny Halevy { -1, -EIO } 74571da177e4SLinus Torvalds }; 74581da177e4SLinus Torvalds 74591da177e4SLinus Torvalds /* 74601da177e4SLinus Torvalds * Convert an NFS error code to a local one. 74611da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 74621da177e4SLinus Torvalds */ 74631da177e4SLinus Torvalds static int 74640a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 74651da177e4SLinus Torvalds { 74661da177e4SLinus Torvalds int i; 74671da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 74681da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 74691da177e4SLinus Torvalds return nfs_errtbl[i].errno; 74701da177e4SLinus Torvalds } 74711da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 74721da177e4SLinus Torvalds /* The server is looney tunes. */ 7473fdcb4577STrond Myklebust return -EREMOTEIO; 74741da177e4SLinus Torvalds } 74751da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 74761da177e4SLinus Torvalds * handle it. 74771da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 74781da177e4SLinus Torvalds * not conflict with native Linux error codes. 74791da177e4SLinus Torvalds */ 7480856dff3dSBenny Halevy return -stat; 74811da177e4SLinus Torvalds } 74821da177e4SLinus Torvalds 74831c6dcbe5SAnna Schumaker #ifdef CONFIG_NFS_V4_2 74841c6dcbe5SAnna Schumaker #include "nfs42xdr.c" 74851c6dcbe5SAnna Schumaker #endif /* CONFIG_NFS_V4_2 */ 74861c6dcbe5SAnna Schumaker 74871da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 74881da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 74891da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 74909f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7491bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 74922bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 74932bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7494cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7495cc0175c1SChuck Lever .p_name = #proc, \ 74961da177e4SLinus Torvalds } 74971da177e4SLinus Torvalds 74987c61f0d3SAnna Schumaker #define STUB(proc) \ 74997c61f0d3SAnna Schumaker [NFSPROC4_CLNT_##proc] = { \ 75007c61f0d3SAnna Schumaker .p_name = #proc, \ 75017c61f0d3SAnna Schumaker } 75027c61f0d3SAnna Schumaker 75031da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 75041da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 75051da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 75061da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 75071da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 75081da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 75091da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 75101da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 75111da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 75121da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 75131da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 75141da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 75151da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 75161da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 75171da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 75181da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 75191da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 75201da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 75211da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 75221da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 75231da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 75241da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 75251da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 75261da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 75271da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 75281da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 75291da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 75301da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 75311da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 75321da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 75331da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 75341da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7535029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 753623ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7537683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7538d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 75395a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 754044c99933SChuck Lever PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present), 754199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 754299fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7543fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 75440f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7545fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 75462050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 754718019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7548b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7549b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7550863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7551cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7552fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 75537d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 75549aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 75557c61f0d3SAnna Schumaker STUB(GETDEVICELIST), 7556ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7557ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 755866245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 755999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 75601c6dcbe5SAnna Schumaker #ifdef CONFIG_NFS_V4_2 75611c6dcbe5SAnna Schumaker PROC(SEEK, enc_seek, dec_seek), 7562f4ac1674SAnna Schumaker PROC(ALLOCATE, enc_allocate, dec_allocate), 7563624bd5b7SAnna Schumaker PROC(DEALLOCATE, enc_deallocate, dec_deallocate), 7564be3a5d23STrond Myklebust PROC(LAYOUTSTATS, enc_layoutstats, dec_layoutstats), 756536022770SPeng Tao PROC(CLONE, enc_clone, dec_clone), 75662e72448bSAnna Schumaker PROC(COPY, enc_copy, dec_copy), 75671c6dcbe5SAnna Schumaker #endif /* CONFIG_NFS_V4_2 */ 75681da177e4SLinus Torvalds }; 75691da177e4SLinus Torvalds 7570a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 75711da177e4SLinus Torvalds .number = 4, 7572e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 75731da177e4SLinus Torvalds .procs = nfs4_procedures 75741da177e4SLinus Torvalds }; 75751da177e4SLinus Torvalds 75761da177e4SLinus Torvalds /* 75771da177e4SLinus Torvalds * Local variables: 75781da177e4SLinus Torvalds * c-basic-offset: 8 75791da177e4SLinus Torvalds * End: 75801da177e4SLinus Torvalds */ 7581