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> 551da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 56f092075dSChuck Lever 574ce79717STrond Myklebust #include "nfs4_fs.h" 584882ef72SAlexandros Batsakis #include "internal.h" 5976e697baSTrond Myklebust #include "nfs4session.h" 60b1f69b75SAndy Adamson #include "pnfs.h" 61f092075dSChuck Lever #include "netns.h" 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 641da177e4SLinus Torvalds 651da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 661da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 671da177e4SLinus Torvalds 680a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 711da177e4SLinus Torvalds #ifdef DEBUG 721da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 731da177e4SLinus Torvalds #else 741da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 751da177e4SLinus Torvalds #endif 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds /* lock,open owner id: 789f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 791da177e4SLinus Torvalds */ 8095b72eb0STrond Myklebust #define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2) 81d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 1 + 4) 829104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 831da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 841da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 851da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 861da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 879104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 889104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 899104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 909104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 911da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 921da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 931da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 941da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 951da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 961da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 971da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 981da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 99e5012d1fSAndy Adamson #define nfs4_fattr_bitmap_maxsz 4 10096928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 1011da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 1021da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 103bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 104bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 105aa9c2669SDavid Quigley #ifdef CONFIG_NFS_V4_SECURITY_LABEL 106aa9c2669SDavid Quigley /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */ 107aa9c2669SDavid Quigley #define nfs4_label_maxsz (4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN)) 108aa9c2669SDavid Quigley #else 109aa9c2669SDavid Quigley #define nfs4_label_maxsz 0 110aa9c2669SDavid Quigley #endif 11188034c3dSAndy Adamson /* We support only one layout type per file system */ 11288034c3dSAndy Adamson #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8) 11396928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 11496928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 11588034c3dSAndy Adamson 3 + 3 + 3 + nfs4_owner_maxsz + \ 116aa9c2669SDavid Quigley nfs4_group_maxsz + nfs4_label_maxsz + \ 117aa9c2669SDavid Quigley decode_mdsthreshold_maxsz)) 11896928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 11996928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 12096928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1219104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1229104a55dSTrond Myklebust 1 + 2 + 1 + \ 1239104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1249104a55dSTrond Myklebust nfs4_group_maxsz + \ 125aa9c2669SDavid Quigley nfs4_label_maxsz + \ 1269104a55dSTrond Myklebust 4 + 4) 1271da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1281da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 12956ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 13056ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1312f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 132dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 133dae100c2SFred Isaman * layout types will be returned. 134dae100c2SFred Isaman */ 135dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 136dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1371da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1381da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1391da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1401da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 141cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 142cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 143cc38bac3SChuck Lever 1 /* sc_prog */ + \ 144cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 145cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 146cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1471da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1481da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1491da177e4SLinus Torvalds 2 + \ 1501da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1511da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1521da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1531da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1541da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1551da177e4SLinus Torvalds (op_decode_hdr_maxsz) 156e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 157e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1582cebf828STrond Myklebust #define encode_share_access_maxsz \ 1592cebf828STrond Myklebust (2) 1604882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1612cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1622cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1632cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1642cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1652cebf828STrond Myklebust open_owner_id_maxsz + \ 1662cebf828STrond Myklebust encode_opentype_maxsz + \ 1672cebf828STrond Myklebust encode_claim_null_maxsz) 1682cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1699104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1702cebf828STrond Myklebust decode_ace_maxsz) 1712cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1722cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1739104a55dSTrond Myklebust decode_stateid_maxsz + \ 1742cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1752cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1762cebf828STrond Myklebust decode_delegation_maxsz) 1779104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1789104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1799104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1809104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1819104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1829104a55dSTrond Myklebust decode_stateid_maxsz) 1839104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1849104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1859104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1869104a55dSTrond Myklebust encode_share_access_maxsz) 1879104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1889104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust decode_stateid_maxsz) 1909104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1919104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1929104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1939104a55dSTrond Myklebust decode_stateid_maxsz) 1949104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1959104a55dSTrond Myklebust encode_stateid_maxsz + \ 1969104a55dSTrond Myklebust encode_attrs_maxsz) 1979104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1989104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1999104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 2009104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2019104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 2029104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 203aa9c2669SDavid Quigley 2 + encode_verifier_maxsz + 5 + \ 204aa9c2669SDavid Quigley nfs4_label_maxsz) 2059104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 206a7697f6fSChuck Lever decode_verifier_maxsz) 2079104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 2089104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 2099104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 2109104a55dSTrond Myklebust encode_stateid_maxsz + 4) 2119104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 2129104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 2139104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 2149104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2159104a55dSTrond Myklebust decode_verifier_maxsz) 2161da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2171da177e4SLinus Torvalds nfs4_name_maxsz) 2186ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2196ce18391SBenny Halevy decode_change_info_maxsz) 2201da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2211da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2226ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2236ce18391SBenny Halevy decode_change_info_maxsz + \ 2246ce18391SBenny Halevy decode_change_info_maxsz) 2251da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2261da177e4SLinus Torvalds nfs4_name_maxsz) 2276ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 228daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2299104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2309104a55dSTrond Myklebust 7 + \ 231daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 232daccbdedSTrond Myklebust encode_lockowner_maxsz) 2339104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2349104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2359104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2369104a55dSTrond Myklebust decode_lock_denied_maxsz) 237daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 238daccbdedSTrond Myklebust encode_lockowner_maxsz) 2399104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2409104a55dSTrond Myklebust decode_lock_denied_maxsz) 2419104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2429104a55dSTrond Myklebust encode_stateid_maxsz + \ 2439104a55dSTrond Myklebust 4) 2449104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2459104a55dSTrond Myklebust decode_stateid_maxsz) 246d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 247d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 248d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 249d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 250d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2519104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2529104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2531da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2541da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 25594a6d753SChuck Lever 1 + \ 25696928206SJ. Bruce Fields nfs4_fattr_maxsz) 2571da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2581da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2599104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2609104a55dSTrond Myklebust encode_attrs_maxsz) 2612cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2622cebf828STrond Myklebust decode_change_info_maxsz + \ 2632cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2649104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2659104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2661da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2671da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2689104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2699104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2709104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2719104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2729104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2739104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 274e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 275e6889620STrond Myklebust (encode_getattr_maxsz) 276e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 277e6889620STrond Myklebust (0) 2785a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2791650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2809b7b9fccSAndy Adamson 2819b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 282fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 283d751f748SJim Rees #define IMPL_NAME_LIMIT (sizeof(utsname()->sysname) + sizeof(utsname()->release) + \ 284d751f748SJim Rees sizeof(utsname()->version) + sizeof(utsname()->machine) + 8) 285fc931582SAndy Adamson 28699fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 28799fe60d0SBenny Halevy encode_verifier_maxsz + \ 28899fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 28999fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 29099fe60d0SBenny Halevy 1 /* flags */ + \ 29199fe60d0SBenny Halevy 1 /* spa_how */ + \ 2922031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 2932031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 2942031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 295db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 296db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 297db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 298db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 299d751f748SJim Rees XDR_QUADLEN(IMPL_NAME_LIMIT) + \ 300db8ac8baSWeston Andros Adamson 3 /* nii_date */) 30199fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 30299fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 30399fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 30499fe60d0SBenny Halevy 1 /* eir_flags */ + \ 30599fe60d0SBenny Halevy 1 /* spr_how */ + \ 3062031cd1aSWeston Andros Adamson /* max is SP4_MACH_CRED (for now) */ + \ 3072031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 3082031cd1aSWeston Andros Adamson 1 + NFS4_OP_MAP_NUM_WORDS + \ 30999fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 31099fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 31199fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 31299fe60d0SBenny Halevy /* eir_server_scope<> */ \ 31399fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 31499fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 3157d2ed9acSWeston Andros Adamson 1 /* nii_domain */ + \ 3167d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3177d2ed9acSWeston Andros Adamson 1 /* nii_name */ + \ 3187d2ed9acSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 3197d2ed9acSWeston Andros Adamson 3 /* nii_date */) 320fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 321fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 322fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 323fc931582SAndy Adamson 1 /* ca_rdma_ird */) 324fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 325fc931582SAndy Adamson 2 /* csa_clientid */ + \ 326fc931582SAndy Adamson 1 /* csa_sequence */ + \ 327fc931582SAndy Adamson 1 /* csa_flags */ + \ 328fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 329fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 330fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 331fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 332fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 333fc931582SAndy Adamson 1 /* stamp */ + \ 334fc931582SAndy Adamson 1 /* machinename.len */ + \ 335fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 336fc931582SAndy Adamson 1 /* uid */ + \ 337fc931582SAndy Adamson 1 /* gid */ + \ 338fc931582SAndy Adamson 1 /* gids.len (0) */) 339fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 340fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 341fc931582SAndy Adamson 1 /* csr_sequence */ + \ 342fc931582SAndy Adamson 1 /* csr_flags */ + \ 343fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 344fc931582SAndy Adamson decode_channel_attrs_maxsz) 3457c44f1aeSWeston Andros Adamson #define encode_bind_conn_to_session_maxsz (op_encode_hdr_maxsz + \ 3467c44f1aeSWeston Andros Adamson /* bctsa_sessid */ \ 3477c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3487c44f1aeSWeston Andros Adamson 1 /* bctsa_dir */ + \ 3497c44f1aeSWeston Andros Adamson 1 /* bctsa_use_conn_in_rdma_mode */) 3507c44f1aeSWeston Andros Adamson #define decode_bind_conn_to_session_maxsz (op_decode_hdr_maxsz + \ 3517c44f1aeSWeston Andros Adamson /* bctsr_sessid */ \ 3527c44f1aeSWeston Andros Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 3537c44f1aeSWeston Andros Adamson 1 /* bctsr_dir */ + \ 3547c44f1aeSWeston Andros Adamson 1 /* bctsr_use_conn_in_rdma_mode */) 3550f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3560f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 35766245539STrond Myklebust #define encode_destroy_clientid_maxsz (op_encode_hdr_maxsz + 2) 35866245539STrond Myklebust #define decode_destroy_clientid_maxsz (op_decode_hdr_maxsz) 359fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 360fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 361fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 362fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 36318019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 36418019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3657f11d8d3SAndy Adamson #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \ 3667f11d8d3SAndy Adamson encode_verifier_maxsz) 3677f11d8d3SAndy Adamson #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \ 3687f11d8d3SAndy Adamson 2 /* nfs_cookie4 gdlr_cookie */ + \ 3697f11d8d3SAndy Adamson decode_verifier_maxsz \ 3707f11d8d3SAndy Adamson /* verifier4 gdlr_verifier */ + \ 3717f11d8d3SAndy Adamson 1 /* gdlr_deviceid_list count */ + \ 3727f11d8d3SAndy Adamson XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \ 3737f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE) \ 3747f11d8d3SAndy Adamson /* gdlr_deviceid_list */ + \ 3757f11d8d3SAndy Adamson 1 /* bool gdlr_eof */) 376b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 377b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 378b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 379b1f69b75SAndy Adamson 1 /* layout type */ + \ 380b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 381b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 382b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 383b1f69b75SAndy Adamson 1 /* notification bitmap */) 384b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 385b1f69b75SAndy Adamson encode_stateid_maxsz) 386b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 387b1f69b75SAndy Adamson decode_stateid_maxsz + \ 388b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 389863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 390863a3c6cSAndy Adamson 2 /* offset */ + \ 391863a3c6cSAndy Adamson 2 /* length */ + \ 392863a3c6cSAndy Adamson 1 /* reclaim */ + \ 393863a3c6cSAndy Adamson encode_stateid_maxsz + \ 394863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 395863a3c6cSAndy Adamson 2 /* last byte written */ + \ 396863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 397863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 398863a3c6cSAndy Adamson 1 /* NULL filelayout layoutupdate4 payload */) 399863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 400cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 401cbe82603SBenny Halevy encode_stateid_maxsz + \ 402cbe82603SBenny Halevy 1 /* FIXME: opaque lrf_body always empty at the moment */) 403cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 404cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 405fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 406fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 4077d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 4087d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4097d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 4109aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 4119aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 4129f79fb48SAndy Adamson #define decode_free_stateid_maxsz (op_decode_hdr_maxsz) 4139b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 4149b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 4159b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 4169b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 4179b7b9fccSAndy Adamson 4181da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 4191da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 4201da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 4219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4221da177e4SLinus Torvalds encode_putfh_maxsz + \ 4239104a55dSTrond Myklebust encode_read_maxsz) 4241da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 4259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4261da177e4SLinus Torvalds decode_putfh_maxsz + \ 4279104a55dSTrond Myklebust decode_read_maxsz) 4281da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 4299b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4301da177e4SLinus Torvalds encode_putfh_maxsz + \ 4319104a55dSTrond Myklebust encode_readlink_maxsz) 4321da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 4339b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4341da177e4SLinus Torvalds decode_putfh_maxsz + \ 4359104a55dSTrond Myklebust decode_readlink_maxsz) 4361da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4379b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4381da177e4SLinus Torvalds encode_putfh_maxsz + \ 4399104a55dSTrond Myklebust encode_readdir_maxsz) 4401da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4419b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4421da177e4SLinus Torvalds decode_putfh_maxsz + \ 4439104a55dSTrond Myklebust decode_readdir_maxsz) 4441da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4461da177e4SLinus Torvalds encode_putfh_maxsz + \ 4479104a55dSTrond Myklebust encode_write_maxsz + \ 4484f9838c7STrond Myklebust encode_getattr_maxsz) 4491da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4511da177e4SLinus Torvalds decode_putfh_maxsz + \ 4529104a55dSTrond Myklebust decode_write_maxsz + \ 4534f9838c7STrond Myklebust decode_getattr_maxsz) 4541da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4561da177e4SLinus Torvalds encode_putfh_maxsz + \ 4578582715eSTrond Myklebust encode_commit_maxsz) 4581da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4599b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4601da177e4SLinus Torvalds decode_putfh_maxsz + \ 4618582715eSTrond Myklebust decode_commit_maxsz) 4621da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4639b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4641da177e4SLinus Torvalds encode_putfh_maxsz + \ 4652cebf828STrond Myklebust encode_open_maxsz + \ 4666168f62cSWeston Andros Adamson encode_access_maxsz + \ 4672cebf828STrond Myklebust encode_getfh_maxsz + \ 4682cebf828STrond Myklebust encode_getattr_maxsz) 4691da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4709b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4711da177e4SLinus Torvalds decode_putfh_maxsz + \ 4722cebf828STrond Myklebust decode_open_maxsz + \ 4736168f62cSWeston Andros Adamson decode_access_maxsz + \ 4742cebf828STrond Myklebust decode_getfh_maxsz + \ 4752cebf828STrond Myklebust decode_getattr_maxsz) 4761da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4771da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4781da177e4SLinus Torvalds encode_putfh_maxsz + \ 4799104a55dSTrond Myklebust encode_open_confirm_maxsz) 4809104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4819104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4821da177e4SLinus Torvalds decode_putfh_maxsz + \ 4839104a55dSTrond Myklebust decode_open_confirm_maxsz) 4841da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4859b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4861da177e4SLinus Torvalds encode_putfh_maxsz + \ 4872cebf828STrond Myklebust encode_open_maxsz + \ 4886168f62cSWeston Andros Adamson encode_access_maxsz + \ 4892cebf828STrond Myklebust encode_getattr_maxsz) 4901da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4919b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4921da177e4SLinus Torvalds decode_putfh_maxsz + \ 4932cebf828STrond Myklebust decode_open_maxsz + \ 4946168f62cSWeston Andros Adamson decode_access_maxsz + \ 4952cebf828STrond Myklebust decode_getattr_maxsz) 4961da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4971da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4989b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4991da177e4SLinus Torvalds encode_putfh_maxsz + \ 5009104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 501516a6af6STrond Myklebust encode_getattr_maxsz) 5021da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 5031da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5049b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5051da177e4SLinus Torvalds decode_putfh_maxsz + \ 5069104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 507516a6af6STrond Myklebust decode_getattr_maxsz) 5081da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 5099b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5101da177e4SLinus Torvalds encode_putfh_maxsz + \ 5119104a55dSTrond Myklebust encode_close_maxsz + \ 512516a6af6STrond Myklebust encode_getattr_maxsz) 5131da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 5149b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5151da177e4SLinus Torvalds decode_putfh_maxsz + \ 5169104a55dSTrond Myklebust decode_close_maxsz + \ 517516a6af6STrond Myklebust decode_getattr_maxsz) 5181da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 5199b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5201da177e4SLinus Torvalds encode_putfh_maxsz + \ 5219104a55dSTrond Myklebust encode_setattr_maxsz + \ 5221da177e4SLinus Torvalds encode_getattr_maxsz) 5231da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 5249b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5251da177e4SLinus Torvalds decode_putfh_maxsz + \ 5269104a55dSTrond Myklebust decode_setattr_maxsz + \ 5279104a55dSTrond Myklebust decode_getattr_maxsz) 5281da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 5299b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5301da177e4SLinus Torvalds encode_putfh_maxsz + \ 5311da177e4SLinus Torvalds encode_fsinfo_maxsz) 5321da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5339b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5341da177e4SLinus Torvalds decode_putfh_maxsz + \ 5351da177e4SLinus Torvalds decode_fsinfo_maxsz) 5361da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5371da177e4SLinus Torvalds encode_renew_maxsz) 5381da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5391da177e4SLinus Torvalds decode_renew_maxsz) 5401da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5411da177e4SLinus Torvalds encode_setclientid_maxsz) 5421da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5431da177e4SLinus Torvalds decode_setclientid_maxsz) 5441da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5451da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 54683ca7f5aSChuck Lever encode_setclientid_confirm_maxsz) 5471da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5481da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 54983ca7f5aSChuck Lever decode_setclientid_confirm_maxsz) 5501da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5519b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5521da177e4SLinus Torvalds encode_putfh_maxsz + \ 5539104a55dSTrond Myklebust encode_lock_maxsz) 5541da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5559b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5561da177e4SLinus Torvalds decode_putfh_maxsz + \ 5579104a55dSTrond Myklebust decode_lock_maxsz) 5581da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5599b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5601da177e4SLinus Torvalds encode_putfh_maxsz + \ 5619104a55dSTrond Myklebust encode_lockt_maxsz) 5629104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5639b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5649104a55dSTrond Myklebust decode_putfh_maxsz + \ 5659104a55dSTrond Myklebust decode_lockt_maxsz) 5661da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5679b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5681da177e4SLinus Torvalds encode_putfh_maxsz + \ 5699104a55dSTrond Myklebust encode_locku_maxsz) 5701da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5719b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5721da177e4SLinus Torvalds decode_putfh_maxsz + \ 5739104a55dSTrond Myklebust decode_locku_maxsz) 574d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 575d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 576d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 577d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 578d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 579d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5801da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5821da177e4SLinus Torvalds encode_putfh_maxsz + \ 58376b32999STrond Myklebust encode_access_maxsz + \ 58476b32999STrond Myklebust encode_getattr_maxsz) 5851da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5869b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5871da177e4SLinus Torvalds decode_putfh_maxsz + \ 58876b32999STrond Myklebust decode_access_maxsz + \ 58976b32999STrond Myklebust decode_getattr_maxsz) 5901da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5919b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5921da177e4SLinus Torvalds encode_putfh_maxsz + \ 59344c99933SChuck Lever encode_getattr_maxsz + \ 59444c99933SChuck Lever encode_renew_maxsz) 5951da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5969b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5971da177e4SLinus Torvalds decode_putfh_maxsz + \ 59844c99933SChuck Lever decode_getattr_maxsz + \ 59944c99933SChuck Lever decode_renew_maxsz) 6001da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 6019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6021da177e4SLinus Torvalds encode_putfh_maxsz + \ 6031da177e4SLinus Torvalds encode_lookup_maxsz + \ 6041da177e4SLinus Torvalds encode_getattr_maxsz + \ 6051da177e4SLinus Torvalds encode_getfh_maxsz) 6061da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 6079b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6081da177e4SLinus Torvalds decode_putfh_maxsz + \ 609e6889620STrond Myklebust decode_lookup_maxsz + \ 6101da177e4SLinus Torvalds decode_getattr_maxsz + \ 6111da177e4SLinus Torvalds decode_getfh_maxsz) 6121da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 6139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6141da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 6151da177e4SLinus Torvalds encode_getattr_maxsz + \ 6161da177e4SLinus Torvalds encode_getfh_maxsz) 6171da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 6189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6191da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 6201da177e4SLinus Torvalds decode_getattr_maxsz + \ 6211da177e4SLinus Torvalds decode_getfh_maxsz) 6221da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 6239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6241da177e4SLinus Torvalds encode_putfh_maxsz + \ 625778d2817STrond Myklebust encode_remove_maxsz) 6261da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 6279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6281da177e4SLinus Torvalds decode_putfh_maxsz + \ 629778d2817STrond Myklebust decode_remove_maxsz) 6301da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6319b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6321da177e4SLinus Torvalds encode_putfh_maxsz + \ 6331da177e4SLinus Torvalds encode_savefh_maxsz + \ 6341da177e4SLinus Torvalds encode_putfh_maxsz + \ 635778d2817STrond Myklebust encode_rename_maxsz) 6361da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6381da177e4SLinus Torvalds decode_putfh_maxsz + \ 6391da177e4SLinus Torvalds decode_savefh_maxsz + \ 6401da177e4SLinus Torvalds decode_putfh_maxsz + \ 641778d2817STrond Myklebust decode_rename_maxsz) 6421da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6441da177e4SLinus Torvalds encode_putfh_maxsz + \ 6451da177e4SLinus Torvalds encode_savefh_maxsz + \ 6461da177e4SLinus Torvalds encode_putfh_maxsz + \ 64791ba2eeeSTrond Myklebust encode_link_maxsz + \ 64891ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 649a9f6991bSTrond Myklebust encode_getattr_maxsz) 6501da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6519b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6521da177e4SLinus Torvalds decode_putfh_maxsz + \ 6531da177e4SLinus Torvalds decode_savefh_maxsz + \ 6541da177e4SLinus Torvalds decode_putfh_maxsz + \ 65591ba2eeeSTrond Myklebust decode_link_maxsz + \ 65691ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 65791ba2eeeSTrond Myklebust decode_getattr_maxsz) 6581da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6599b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6601da177e4SLinus Torvalds encode_putfh_maxsz + \ 6611da177e4SLinus Torvalds encode_symlink_maxsz + \ 6621da177e4SLinus Torvalds encode_getattr_maxsz + \ 6631da177e4SLinus Torvalds encode_getfh_maxsz) 6641da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6659b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6661da177e4SLinus Torvalds decode_putfh_maxsz + \ 6671da177e4SLinus Torvalds decode_symlink_maxsz + \ 6681da177e4SLinus Torvalds decode_getattr_maxsz + \ 6691da177e4SLinus Torvalds decode_getfh_maxsz) 6701da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6721da177e4SLinus Torvalds encode_putfh_maxsz + \ 6731da177e4SLinus Torvalds encode_create_maxsz + \ 67456ae19f3STrond Myklebust encode_getfh_maxsz + \ 67556ae19f3STrond Myklebust encode_getattr_maxsz) 6761da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6781da177e4SLinus Torvalds decode_putfh_maxsz + \ 6791da177e4SLinus Torvalds decode_create_maxsz + \ 68056ae19f3STrond Myklebust decode_getfh_maxsz + \ 68156ae19f3STrond Myklebust decode_getattr_maxsz) 6821da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6839b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6841da177e4SLinus Torvalds encode_putfh_maxsz + \ 6851da177e4SLinus Torvalds encode_getattr_maxsz) 6861da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6879b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6881da177e4SLinus Torvalds decode_putfh_maxsz + \ 6891da177e4SLinus Torvalds decode_getattr_maxsz) 6901da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6919b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6921da177e4SLinus Torvalds encode_putfh_maxsz + \ 6939104a55dSTrond Myklebust encode_statfs_maxsz) 6941da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6959b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6961da177e4SLinus Torvalds decode_putfh_maxsz + \ 6979104a55dSTrond Myklebust decode_statfs_maxsz) 6981da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6999b7b9fccSAndy Adamson encode_sequence_maxsz + \ 700ab91f264STrond Myklebust encode_putfh_maxsz + \ 7011da177e4SLinus Torvalds encode_getattr_maxsz) 7021da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 7039b7b9fccSAndy Adamson decode_sequence_maxsz + \ 704ab91f264STrond Myklebust decode_putfh_maxsz + \ 7051da177e4SLinus Torvalds decode_getattr_maxsz) 7061da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 7079b7b9fccSAndy Adamson encode_sequence_maxsz + \ 7081da177e4SLinus Torvalds encode_putfh_maxsz + \ 709fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 710fa178f29STrond Myklebust encode_getattr_maxsz) 7111da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 7129b7b9fccSAndy Adamson decode_sequence_maxsz + \ 713fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 714fa178f29STrond Myklebust decode_getattr_maxsz) 715029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 717029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7189104a55dSTrond Myklebust encode_getacl_maxsz) 719029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7209b7b9fccSAndy Adamson decode_sequence_maxsz + \ 721029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7229104a55dSTrond Myklebust decode_getacl_maxsz) 72323ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7249b7b9fccSAndy Adamson encode_sequence_maxsz + \ 72523ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7269104a55dSTrond Myklebust encode_setacl_maxsz) 72723ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7289b7b9fccSAndy Adamson decode_sequence_maxsz + \ 72923ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7309104a55dSTrond Myklebust decode_setacl_maxsz) 731683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 732683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 734683b57b4STrond Myklebust encode_putfh_maxsz + \ 735e6889620STrond Myklebust encode_lookup_maxsz + \ 736b03d735bSChuck Lever encode_fs_locations_maxsz + \ 737b03d735bSChuck Lever encode_renew_maxsz) 738683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 739683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7409b7b9fccSAndy Adamson decode_sequence_maxsz + \ 741683b57b4STrond Myklebust decode_putfh_maxsz + \ 742e6889620STrond Myklebust decode_lookup_maxsz + \ 743b03d735bSChuck Lever decode_fs_locations_maxsz + \ 744b03d735bSChuck Lever decode_renew_maxsz) 7455a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7465a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7475a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7485a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7495a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7505a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7515a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7525a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 75344c99933SChuck Lever #define NFS4_enc_fsid_present_sz \ 75444c99933SChuck Lever (compound_encode_hdr_maxsz + \ 75544c99933SChuck Lever encode_sequence_maxsz + \ 75644c99933SChuck Lever encode_putfh_maxsz + \ 75744c99933SChuck Lever encode_getfh_maxsz + \ 75844c99933SChuck Lever encode_renew_maxsz) 75944c99933SChuck Lever #define NFS4_dec_fsid_present_sz \ 76044c99933SChuck Lever (compound_decode_hdr_maxsz + \ 76144c99933SChuck Lever decode_sequence_maxsz + \ 76244c99933SChuck Lever decode_putfh_maxsz + \ 76344c99933SChuck Lever decode_getfh_maxsz + \ 76444c99933SChuck Lever decode_renew_maxsz) 76599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 7667c44f1aeSWeston Andros Adamson #define NFS4_enc_bind_conn_to_session_sz \ 7677c44f1aeSWeston Andros Adamson (compound_encode_hdr_maxsz + \ 7687c44f1aeSWeston Andros Adamson encode_bind_conn_to_session_maxsz) 7697c44f1aeSWeston Andros Adamson #define NFS4_dec_bind_conn_to_session_sz \ 7707c44f1aeSWeston Andros Adamson (compound_decode_hdr_maxsz + \ 7717c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz) 77299fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 77399fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 77499fe60d0SBenny Halevy encode_exchange_id_maxsz) 77599fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 77699fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 77799fe60d0SBenny Halevy decode_exchange_id_maxsz) 778fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 779fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 780fc931582SAndy Adamson encode_create_session_maxsz) 781fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 782fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 783fc931582SAndy Adamson decode_create_session_maxsz) 7840f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7850f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7860f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7870f3e66c6SAndy Adamson decode_destroy_session_maxsz) 78866245539STrond Myklebust #define NFS4_enc_destroy_clientid_sz (compound_encode_hdr_maxsz + \ 78966245539STrond Myklebust encode_destroy_clientid_maxsz) 79066245539STrond Myklebust #define NFS4_dec_destroy_clientid_sz (compound_decode_hdr_maxsz + \ 79166245539STrond Myklebust decode_destroy_clientid_maxsz) 792fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 793fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 794fc01cea9SAndy Adamson encode_sequence_maxsz) 795fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 796fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 797fc01cea9SAndy Adamson decode_sequence_maxsz) 7982050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7992050f0ccSAndy Adamson encode_sequence_maxsz + \ 8002050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 8012050f0ccSAndy Adamson encode_fsinfo_maxsz) 8022050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 8032050f0ccSAndy Adamson decode_sequence_maxsz + \ 8042050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 8052050f0ccSAndy Adamson decode_fsinfo_maxsz) 80618019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 80718019753SRicardo Labiaga encode_sequence_maxsz + \ 80818019753SRicardo Labiaga encode_reclaim_complete_maxsz) 80918019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 81018019753SRicardo Labiaga decode_sequence_maxsz + \ 81118019753SRicardo Labiaga decode_reclaim_complete_maxsz) 8127f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 8137f11d8d3SAndy Adamson encode_sequence_maxsz + \ 8147f11d8d3SAndy Adamson encode_putfh_maxsz + \ 8157f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 8167f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 8177f11d8d3SAndy Adamson decode_sequence_maxsz + \ 8187f11d8d3SAndy Adamson decode_putfh_maxsz + \ 8197f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 820b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 821b1f69b75SAndy Adamson encode_sequence_maxsz +\ 822b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 823b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 824b1f69b75SAndy Adamson decode_sequence_maxsz + \ 825b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 826b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 827b1f69b75SAndy Adamson encode_sequence_maxsz + \ 828b1f69b75SAndy Adamson encode_putfh_maxsz + \ 829b1f69b75SAndy Adamson encode_layoutget_maxsz) 830b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 831b1f69b75SAndy Adamson decode_sequence_maxsz + \ 832b1f69b75SAndy Adamson decode_putfh_maxsz + \ 833b1f69b75SAndy Adamson decode_layoutget_maxsz) 834863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 835863a3c6cSAndy Adamson encode_sequence_maxsz +\ 836863a3c6cSAndy Adamson encode_putfh_maxsz + \ 837863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 838863a3c6cSAndy Adamson encode_getattr_maxsz) 839863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 840863a3c6cSAndy Adamson decode_sequence_maxsz + \ 841863a3c6cSAndy Adamson decode_putfh_maxsz + \ 842863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 843863a3c6cSAndy Adamson decode_getattr_maxsz) 844cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 845cbe82603SBenny Halevy encode_sequence_maxsz + \ 846cbe82603SBenny Halevy encode_putfh_maxsz + \ 847cbe82603SBenny Halevy encode_layoutreturn_maxsz) 848cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 849cbe82603SBenny Halevy decode_sequence_maxsz + \ 850cbe82603SBenny Halevy decode_putfh_maxsz + \ 851cbe82603SBenny Halevy decode_layoutreturn_maxsz) 852fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 853fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 854fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 855fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 856fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 857fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 858fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 859fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8607d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8617d974794SBryan Schumaker encode_sequence_maxsz + \ 8627d974794SBryan Schumaker encode_test_stateid_maxsz) 8637d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8647d974794SBryan Schumaker decode_sequence_maxsz + \ 8657d974794SBryan Schumaker decode_test_stateid_maxsz) 8669aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8679aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8689aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8699aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8709aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8719aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8722449ea2eSAlexandros Batsakis 8732449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8742449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8752449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8762449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8772449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8782449ea2eSAlexandros Batsakis XDR_UNIT); 8792449ea2eSAlexandros Batsakis 8802449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8812449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8822449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8832449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8842449ea2eSAlexandros Batsakis XDR_UNIT); 885f1c097beSAndy Adamson 886f1c097beSAndy Adamson const u32 nfs41_maxgetdevinfo_overhead = ((RPC_MAX_REPHEADER_WITH_AUTH + 887f1c097beSAndy Adamson compound_decode_hdr_maxsz + 888f1c097beSAndy Adamson decode_sequence_maxsz) * 889f1c097beSAndy Adamson XDR_UNIT); 890f1c097beSAndy Adamson EXPORT_SYMBOL_GPL(nfs41_maxgetdevinfo_overhead); 89199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8921da177e4SLinus Torvalds 893bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 894bca79478STrond Myklebust [NF4BAD] = 0, 895bca79478STrond Myklebust [NF4REG] = S_IFREG, 896bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 897bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 898bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 899bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 900bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 901bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 902bca79478STrond Myklebust [NF4ATTRDIR] = 0, 903bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 9041da177e4SLinus Torvalds }; 9051da177e4SLinus Torvalds 9061da177e4SLinus Torvalds struct compound_hdr { 9071da177e4SLinus Torvalds int32_t status; 9081da177e4SLinus Torvalds uint32_t nops; 909d017931cSAndy Adamson __be32 * nops_p; 9101da177e4SLinus Torvalds uint32_t taglen; 9111da177e4SLinus Torvalds char * tag; 9120c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 91366cc0429SBenny Halevy u32 minorversion; 9141da177e4SLinus Torvalds }; 9151da177e4SLinus Torvalds 91613c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 91713c65ce9SBenny Halevy { 91813c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 91913c65ce9SBenny Halevy BUG_ON(!p); 92013c65ce9SBenny Halevy return p; 92113c65ce9SBenny Halevy } 9221da177e4SLinus Torvalds 923cb17e556STrond Myklebust static void encode_opaque_fixed(struct xdr_stream *xdr, const void *buf, size_t len) 924cb17e556STrond Myklebust { 925cb17e556STrond Myklebust __be32 *p; 926cb17e556STrond Myklebust 927cb17e556STrond Myklebust p = xdr_reserve_space(xdr, len); 928cb17e556STrond Myklebust xdr_encode_opaque_fixed(p, buf, len); 929cb17e556STrond Myklebust } 930cb17e556STrond Myklebust 9311da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 9321da177e4SLinus Torvalds { 9338687b63aSAl Viro __be32 *p; 9341da177e4SLinus Torvalds 9356fdfb0bcSTrond Myklebust p = reserve_space(xdr, 4 + len); 9361da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 9371da177e4SLinus Torvalds } 9381da177e4SLinus Torvalds 9394ade9821STrond Myklebust static void encode_uint32(struct xdr_stream *xdr, u32 n) 9404ade9821STrond Myklebust { 9414ade9821STrond Myklebust __be32 *p; 9424ade9821STrond Myklebust 9434ade9821STrond Myklebust p = reserve_space(xdr, 4); 9444ade9821STrond Myklebust *p = cpu_to_be32(n); 9454ade9821STrond Myklebust } 9464ade9821STrond Myklebust 947ff2eb681STrond Myklebust static void encode_uint64(struct xdr_stream *xdr, u64 n) 948ff2eb681STrond Myklebust { 949ff2eb681STrond Myklebust __be32 *p; 950ff2eb681STrond Myklebust 951ff2eb681STrond Myklebust p = reserve_space(xdr, 8); 952ff2eb681STrond Myklebust xdr_encode_hyper(p, n); 953ff2eb681STrond Myklebust } 954ff2eb681STrond Myklebust 9554ade9821STrond Myklebust static void encode_nfs4_seqid(struct xdr_stream *xdr, 9564ade9821STrond Myklebust const struct nfs_seqid *seqid) 9574ade9821STrond Myklebust { 9584ade9821STrond Myklebust encode_uint32(xdr, seqid->sequence->counter); 9594ade9821STrond Myklebust } 9604ade9821STrond Myklebust 9610c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 9620c4e8c18SBenny Halevy struct rpc_rqst *req, 9630c4e8c18SBenny Halevy struct compound_hdr *hdr) 9641da177e4SLinus Torvalds { 9658687b63aSAl Viro __be32 *p; 966a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 9670c4e8c18SBenny Halevy 9680c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9690c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9700c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9710c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9721da177e4SLinus Torvalds 9737fc38846STrond Myklebust WARN_ON_ONCE(hdr->taglen > NFS4_MAXTAGLEN); 9746fdfb0bcSTrond Myklebust encode_string(xdr, hdr->taglen, hdr->tag); 9756fdfb0bcSTrond Myklebust p = reserve_space(xdr, 8); 976e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 977d017931cSAndy Adamson hdr->nops_p = p; 97834558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 979d017931cSAndy Adamson } 980d017931cSAndy Adamson 981ab19b481STrond Myklebust static void encode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 op, 982ab19b481STrond Myklebust uint32_t replen, 983ab19b481STrond Myklebust struct compound_hdr *hdr) 984ab19b481STrond Myklebust { 985ab19b481STrond Myklebust encode_uint32(xdr, op); 986ab19b481STrond Myklebust hdr->nops++; 987ab19b481STrond Myklebust hdr->replen += replen; 988ab19b481STrond Myklebust } 989ab19b481STrond Myklebust 990d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 991d017931cSAndy Adamson { 9927fc38846STrond Myklebust WARN_ON_ONCE(hdr->nops > NFS4_MAX_OPS); 993d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9941da177e4SLinus Torvalds } 9951da177e4SLinus Torvalds 996ea9d23f5STrond Myklebust static void encode_nfs4_stateid(struct xdr_stream *xdr, const nfs4_stateid *stateid) 997ea9d23f5STrond Myklebust { 9982d2f24adSTrond Myklebust encode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 999ea9d23f5STrond Myklebust } 1000ea9d23f5STrond Myklebust 10011da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 10021da177e4SLinus Torvalds { 1003cb17e556STrond Myklebust encode_opaque_fixed(xdr, verf->data, NFS4_VERIFIER_SIZE); 10041da177e4SLinus Torvalds } 10051da177e4SLinus Torvalds 1006aa9c2669SDavid Quigley static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, 1007aa9c2669SDavid Quigley const struct nfs4_label *label, 1008aa9c2669SDavid Quigley const struct nfs_server *server) 10091da177e4SLinus Torvalds { 10101da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 10111da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 10121da177e4SLinus Torvalds int owner_namelen = 0; 10131da177e4SLinus Torvalds int owner_grouplen = 0; 10148687b63aSAl Viro __be32 *p; 1015d7067b2dSTrond Myklebust unsigned i; 1016d7067b2dSTrond Myklebust uint32_t len = 0; 1017d7067b2dSTrond Myklebust uint32_t bmval_len; 1018d7067b2dSTrond Myklebust uint32_t bmval[3] = { 0 }; 10191da177e4SLinus Torvalds 10201da177e4SLinus Torvalds /* 10211da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 10221da177e4SLinus Torvalds * In the worst-case, this would be 1023a09df2caSDavid Quigley * 16(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 1024a09df2caSDavid Quigley * = 40 bytes, plus any contribution from variable-length fields 102523ec6965SJ. Bruce Fields * such as owner/group. 10261da177e4SLinus Torvalds */ 1027d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_SIZE) { 1028d7067b2dSTrond Myklebust bmval[0] |= FATTR4_WORD0_SIZE; 10291da177e4SLinus Torvalds len += 8; 1030d7067b2dSTrond Myklebust } 1031d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MODE) { 1032d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_MODE; 10331da177e4SLinus Torvalds len += 4; 1034d7067b2dSTrond Myklebust } 10351da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 1036e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 10371da177e4SLinus Torvalds if (owner_namelen < 0) { 1038fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 1039e5782076SEric W. Biederman from_kuid(&init_user_ns, iap->ia_uid)); 10401da177e4SLinus Torvalds /* XXX */ 10411da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 10421da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 10431da177e4SLinus Torvalds /* goto out; */ 10441da177e4SLinus Torvalds } 1045d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER; 10461da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 10471da177e4SLinus Torvalds } 10481da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 1049e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 10501da177e4SLinus Torvalds if (owner_grouplen < 0) { 1051fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 1052e5782076SEric W. Biederman from_kgid(&init_user_ns, iap->ia_gid)); 10531da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 10541da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 10551da177e4SLinus Torvalds /* goto out; */ 10561da177e4SLinus Torvalds } 1057d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_OWNER_GROUP; 10581da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 10591da177e4SLinus Torvalds } 1060d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_ATIME_SET) { 1061d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 10621da177e4SLinus Torvalds len += 16; 1063d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_ATIME) { 1064d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_ACCESS_SET; 10651da177e4SLinus Torvalds len += 4; 1066d7067b2dSTrond Myklebust } 1067d7067b2dSTrond Myklebust if (iap->ia_valid & ATTR_MTIME_SET) { 1068d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 10691da177e4SLinus Torvalds len += 16; 1070d7067b2dSTrond Myklebust } else if (iap->ia_valid & ATTR_MTIME) { 1071d7067b2dSTrond Myklebust bmval[1] |= FATTR4_WORD1_TIME_MODIFY_SET; 10721da177e4SLinus Torvalds len += 4; 1073d7067b2dSTrond Myklebust } 1074b4a2cf76STrond Myklebust if (label) { 1075b4a2cf76STrond Myklebust len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2); 1076d7067b2dSTrond Myklebust bmval[2] |= FATTR4_WORD2_SECURITY_LABEL; 1077d7067b2dSTrond Myklebust } 1078d7067b2dSTrond Myklebust 1079d7067b2dSTrond Myklebust if (bmval[2] != 0) 1080b4a2cf76STrond Myklebust bmval_len = 3; 1081d7067b2dSTrond Myklebust else if (bmval[1] != 0) 1082d7067b2dSTrond Myklebust bmval_len = 2; 1083d7067b2dSTrond Myklebust else 1084d7067b2dSTrond Myklebust bmval_len = 1; 1085b4a2cf76STrond Myklebust 1086d7067b2dSTrond Myklebust p = reserve_space(xdr, 4 + (bmval_len << 2) + 4 + len); 10871da177e4SLinus Torvalds 1088b4a2cf76STrond Myklebust *p++ = cpu_to_be32(bmval_len); 1089d7067b2dSTrond Myklebust for (i = 0; i < bmval_len; i++) 1090d7067b2dSTrond Myklebust *p++ = cpu_to_be32(bmval[i]); 1091d7067b2dSTrond Myklebust *p++ = cpu_to_be32(len); 10921da177e4SLinus Torvalds 1093d7067b2dSTrond Myklebust if (bmval[0] & FATTR4_WORD0_SIZE) 1094b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 1095d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_MODE) 1096e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 1097d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER) 1098811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 1099d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_OWNER_GROUP) 1100811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 1101d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) { 11021da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 1103e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1104042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_atime.tv_sec); 1105d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 1106d7067b2dSTrond Myklebust } else 1107e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11081da177e4SLinus Torvalds } 1109d7067b2dSTrond Myklebust if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) { 11101da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 1111e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1112042ad0b3SBryan Schumaker p = xdr_encode_hyper(p, (s64)iap->ia_mtime.tv_sec); 1113e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 1114d7067b2dSTrond Myklebust } else 1115e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 11161da177e4SLinus Torvalds } 1117d7067b2dSTrond Myklebust if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) { 1118aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->lfs); 1119aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->pi); 1120aa9c2669SDavid Quigley *p++ = cpu_to_be32(label->len); 1121aa9c2669SDavid Quigley p = xdr_encode_opaque_fixed(p, label->label, label->len); 1122aa9c2669SDavid Quigley } 11231da177e4SLinus Torvalds 11241da177e4SLinus Torvalds /* out: */ 11251da177e4SLinus Torvalds } 11261da177e4SLinus Torvalds 1127cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 11281da177e4SLinus Torvalds { 1129475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_ACCESS, decode_access_maxsz, hdr); 1130475d4ba0STrond Myklebust encode_uint32(xdr, access); 11311da177e4SLinus Torvalds } 11321da177e4SLinus Torvalds 1133cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11341da177e4SLinus Torvalds { 1135ab19b481STrond Myklebust encode_op_hdr(xdr, OP_CLOSE, decode_close_maxsz, hdr); 11364ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1137ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 11381da177e4SLinus Torvalds } 11391da177e4SLinus Torvalds 11400b7c0153SFred Isaman static void encode_commit(struct xdr_stream *xdr, const struct nfs_commitargs *args, struct compound_hdr *hdr) 11411da177e4SLinus Torvalds { 11428687b63aSAl Viro __be32 *p; 11431da177e4SLinus Torvalds 1144475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_COMMIT, decode_commit_maxsz, hdr); 1145475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1146b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 114734558513SBenny Halevy *p = cpu_to_be32(args->count); 11481da177e4SLinus Torvalds } 11491da177e4SLinus Torvalds 1150cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 11511da177e4SLinus Torvalds { 11528687b63aSAl Viro __be32 *p; 11531da177e4SLinus Torvalds 1154475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE, decode_create_maxsz, hdr); 1155475d4ba0STrond Myklebust encode_uint32(xdr, create->ftype); 11561da177e4SLinus Torvalds 11571da177e4SLinus Torvalds switch (create->ftype) { 11581da177e4SLinus Torvalds case NF4LNK: 115913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 116034558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 116194a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 11621da177e4SLinus Torvalds break; 11631da177e4SLinus Torvalds 11641da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 116513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1166e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 116734558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11681da177e4SLinus Torvalds break; 11691da177e4SLinus Torvalds 11701da177e4SLinus Torvalds default: 11711da177e4SLinus Torvalds break; 11721da177e4SLinus Torvalds } 11731da177e4SLinus Torvalds 1174811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1175aa9c2669SDavid Quigley encode_attrs(xdr, create->attrs, create->label, create->server); 11761da177e4SLinus Torvalds } 11771da177e4SLinus Torvalds 1178cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11791da177e4SLinus Torvalds { 11808687b63aSAl Viro __be32 *p; 11811da177e4SLinus Torvalds 1182475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1183475d4ba0STrond Myklebust p = reserve_space(xdr, 8); 1184e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 118534558513SBenny Halevy *p = cpu_to_be32(bitmap); 11861da177e4SLinus Torvalds } 11871da177e4SLinus Torvalds 1188cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11891da177e4SLinus Torvalds { 11908687b63aSAl Viro __be32 *p; 11911da177e4SLinus Torvalds 1192475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1193475d4ba0STrond Myklebust p = reserve_space(xdr, 12); 1194e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1195e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 119634558513SBenny Halevy *p = cpu_to_be32(bm1); 11971da177e4SLinus Torvalds } 11981da177e4SLinus Torvalds 1199dae100c2SFred Isaman static void 1200dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1201dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1202dae100c2SFred Isaman struct compound_hdr *hdr) 1203dae100c2SFred Isaman { 1204dae100c2SFred Isaman __be32 *p; 1205dae100c2SFred Isaman 1206ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETATTR, decode_getattr_maxsz, hdr); 1207dae100c2SFred Isaman if (bm2) { 1208dae100c2SFred Isaman p = reserve_space(xdr, 16); 1209dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1210dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1211dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1212dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1213dae100c2SFred Isaman } else if (bm1) { 1214dae100c2SFred Isaman p = reserve_space(xdr, 12); 1215dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1216dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1217dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1218dae100c2SFred Isaman } else { 1219dae100c2SFred Isaman p = reserve_space(xdr, 8); 1220dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1221dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1222dae100c2SFred Isaman } 1223dae100c2SFred Isaman } 1224dae100c2SFred Isaman 1225cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12261da177e4SLinus Torvalds { 1227a09df2caSDavid Quigley encode_getattr_three(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1228a09df2caSDavid Quigley bitmask[1] & nfs4_fattr_bitmap[1], 1229a09df2caSDavid Quigley bitmask[2] & nfs4_fattr_bitmap[2], 1230a09df2caSDavid Quigley hdr); 12311da177e4SLinus Torvalds } 12321da177e4SLinus Torvalds 123388034c3dSAndy Adamson static void encode_getfattr_open(struct xdr_stream *xdr, const u32 *bitmask, 12341549210fSTrond Myklebust const u32 *open_bitmap, 123588034c3dSAndy Adamson struct compound_hdr *hdr) 123688034c3dSAndy Adamson { 123788034c3dSAndy Adamson encode_getattr_three(xdr, 12381549210fSTrond Myklebust bitmask[0] & open_bitmap[0], 12391549210fSTrond Myklebust bitmask[1] & open_bitmap[1], 12401549210fSTrond Myklebust bitmask[2] & open_bitmap[2], 124188034c3dSAndy Adamson hdr); 124288034c3dSAndy Adamson } 124388034c3dSAndy Adamson 1244cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 12451da177e4SLinus Torvalds { 1246dae100c2SFred Isaman encode_getattr_three(xdr, 1247dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1248dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1249dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1250dae100c2SFred Isaman hdr); 12511da177e4SLinus Torvalds } 12521da177e4SLinus Torvalds 1253cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1254830b8e33SManoj Naik { 1255cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1256cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1257830b8e33SManoj Naik } 1258830b8e33SManoj Naik 1259cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12601da177e4SLinus Torvalds { 1261ab19b481STrond Myklebust encode_op_hdr(xdr, OP_GETFH, decode_getfh_maxsz, hdr); 12621da177e4SLinus Torvalds } 12631da177e4SLinus Torvalds 1264cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12651da177e4SLinus Torvalds { 1266ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LINK, decode_link_maxsz, hdr); 12676fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 12681da177e4SLinus Torvalds } 12691da177e4SLinus Torvalds 1270911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1271911d1aafSTrond Myklebust { 1272f44106e2SJeff Layton if (fl->fl_type == F_RDLCK) 1273911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1274911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1275911d1aafSTrond Myklebust } 1276911d1aafSTrond Myklebust 1277911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1278911d1aafSTrond Myklebust { 1279911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1280911d1aafSTrond Myklebust return ~(uint64_t)0; 1281911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1282911d1aafSTrond Myklebust } 1283911d1aafSTrond Myklebust 1284daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1285daccbdedSTrond Myklebust { 1286daccbdedSTrond Myklebust __be32 *p; 1287daccbdedSTrond Myklebust 1288d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1289daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1290d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1291daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1292d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1293daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1294daccbdedSTrond Myklebust } 1295daccbdedSTrond Myklebust 12961da177e4SLinus Torvalds /* 12971da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12981da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12991da177e4SLinus Torvalds */ 1300cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 13011da177e4SLinus Torvalds { 13028687b63aSAl Viro __be32 *p; 13031da177e4SLinus Torvalds 1304475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCK, decode_lock_maxsz, hdr); 1305475d4ba0STrond Myklebust p = reserve_space(xdr, 28); 1306e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1307e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1308b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1309b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 131034558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1311911d1aafSTrond Myklebust if (args->new_lock_owner){ 13124ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->open_seqid); 1313ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->open_stateid); 13144ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 1315daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13161da177e4SLinus Torvalds } 13171da177e4SLinus Torvalds else { 1318ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->lock_stateid); 13194ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->lock_seqid); 13201da177e4SLinus Torvalds } 13211da177e4SLinus Torvalds } 13221da177e4SLinus Torvalds 1323cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 13241da177e4SLinus Torvalds { 13258687b63aSAl Viro __be32 *p; 13261da177e4SLinus Torvalds 1327475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKT, decode_lockt_maxsz, hdr); 1328475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 1329e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1330b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1331b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1332daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 13331da177e4SLinus Torvalds } 13341da177e4SLinus Torvalds 1335cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 13361da177e4SLinus Torvalds { 13378687b63aSAl Viro __be32 *p; 13381da177e4SLinus Torvalds 1339475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LOCKU, decode_locku_maxsz, hdr); 1340475d4ba0STrond Myklebust encode_uint32(xdr, nfs4_lock_type(args->fl, 0)); 13414ade9821STrond Myklebust encode_nfs4_seqid(xdr, args->seqid); 1342ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 1343ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 1344b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 134534558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 13461da177e4SLinus Torvalds } 13471da177e4SLinus Torvalds 1348d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1349d3c7b7ccSTrond Myklebust { 1350ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RELEASE_LOCKOWNER, decode_release_lockowner_maxsz, hdr); 1351d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1352d3c7b7ccSTrond Myklebust } 1353d3c7b7ccSTrond Myklebust 1354cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13551da177e4SLinus Torvalds { 1356ab19b481STrond Myklebust encode_op_hdr(xdr, OP_LOOKUP, decode_lookup_maxsz, hdr); 13576fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 13581da177e4SLinus Torvalds } 13591da177e4SLinus Torvalds 1360dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13611da177e4SLinus Torvalds { 13628687b63aSAl Viro __be32 *p; 13631da177e4SLinus Torvalds 136413c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1365dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13661da177e4SLinus Torvalds case FMODE_READ: 1367e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13681da177e4SLinus Torvalds break; 13691da177e4SLinus Torvalds case FMODE_WRITE: 1370e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13711da177e4SLinus Torvalds break; 13721da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1373e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13741da177e4SLinus Torvalds break; 13751da177e4SLinus Torvalds default: 1376e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13771da177e4SLinus Torvalds } 137834558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13791da177e4SLinus Torvalds } 13801da177e4SLinus Torvalds 13811da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13821da177e4SLinus Torvalds { 13838687b63aSAl Viro __be32 *p; 13841da177e4SLinus Torvalds /* 13851da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13861da177e4SLinus Torvalds * owner 4 = 32 13871da177e4SLinus Torvalds */ 13884ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1389dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 139095b72eb0STrond Myklebust p = reserve_space(xdr, 36); 1391b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 139295b72eb0STrond Myklebust *p++ = cpu_to_be32(24); 139393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1394d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 139595b72eb0STrond Myklebust *p++ = cpu_to_be32(arg->id.uniquifier); 139695b72eb0STrond Myklebust xdr_encode_hyper(p, arg->id.create_time); 13971da177e4SLinus Torvalds } 13981da177e4SLinus Torvalds 13991da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14001da177e4SLinus Torvalds { 1401549b19ccSTrond Myklebust struct iattr dummy; 14028687b63aSAl Viro __be32 *p; 14031da177e4SLinus Torvalds 140413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 1405549b19ccSTrond Myklebust switch(arg->createmode) { 1406549b19ccSTrond Myklebust case NFS4_CREATE_UNCHECKED: 140734558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 1408aa9c2669SDavid Quigley encode_attrs(xdr, arg->u.attrs, arg->label, arg->server); 14091da177e4SLinus Torvalds break; 1410549b19ccSTrond Myklebust case NFS4_CREATE_GUARDED: 14114882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 1412aa9c2669SDavid Quigley encode_attrs(xdr, arg->u.attrs, arg->label, arg->server); 1413549b19ccSTrond Myklebust break; 1414549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE: 1415549b19ccSTrond Myklebust *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 1416549b19ccSTrond Myklebust encode_nfs4_verifier(xdr, &arg->u.verifier); 1417549b19ccSTrond Myklebust break; 1418549b19ccSTrond Myklebust case NFS4_CREATE_EXCLUSIVE4_1: 14194882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 14204882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 14214882ef72SAlexandros Batsakis dummy.ia_valid = 0; 1422aa9c2669SDavid Quigley encode_attrs(xdr, &dummy, arg->label, arg->server); 14234882ef72SAlexandros Batsakis } 14244882ef72SAlexandros Batsakis } 14251da177e4SLinus Torvalds 14261da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 14271da177e4SLinus Torvalds { 14288687b63aSAl Viro __be32 *p; 14291da177e4SLinus Torvalds 143013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14311da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14321da177e4SLinus Torvalds case 0: 143334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14341da177e4SLinus Torvalds break; 14351da177e4SLinus Torvalds default: 143634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14371da177e4SLinus Torvalds encode_createmode(xdr, arg); 14381da177e4SLinus Torvalds } 14391da177e4SLinus Torvalds } 14401da177e4SLinus Torvalds 1441bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14421da177e4SLinus Torvalds { 14438687b63aSAl Viro __be32 *p; 14441da177e4SLinus Torvalds 144513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14461da177e4SLinus Torvalds switch (delegation_type) { 14471da177e4SLinus Torvalds case 0: 144834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14491da177e4SLinus Torvalds break; 14501da177e4SLinus Torvalds case FMODE_READ: 145134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14521da177e4SLinus Torvalds break; 14531da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 145434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14551da177e4SLinus Torvalds break; 14561da177e4SLinus Torvalds default: 14571da177e4SLinus Torvalds BUG(); 14581da177e4SLinus Torvalds } 14591da177e4SLinus Torvalds } 14601da177e4SLinus Torvalds 14611da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14621da177e4SLinus Torvalds { 14638687b63aSAl Viro __be32 *p; 14641da177e4SLinus Torvalds 146513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14671da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14681da177e4SLinus Torvalds } 14691da177e4SLinus Torvalds 1470bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14711da177e4SLinus Torvalds { 14728687b63aSAl Viro __be32 *p; 14731da177e4SLinus Torvalds 147413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14761da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14771da177e4SLinus Torvalds } 14781da177e4SLinus Torvalds 14791da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14801da177e4SLinus Torvalds { 14818687b63aSAl Viro __be32 *p; 14821da177e4SLinus Torvalds 1483ea9d23f5STrond Myklebust p = reserve_space(xdr, 4); 1484ea9d23f5STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 1485ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 14861da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14871da177e4SLinus Torvalds } 14881da177e4SLinus Torvalds 1489d9fc6619STrond Myklebust static inline void encode_claim_fh(struct xdr_stream *xdr) 1490d9fc6619STrond Myklebust { 1491d9fc6619STrond Myklebust __be32 *p; 1492d9fc6619STrond Myklebust 1493d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1494d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_FH); 1495d9fc6619STrond Myklebust } 1496d9fc6619STrond Myklebust 1497d9fc6619STrond Myklebust static inline void encode_claim_delegate_cur_fh(struct xdr_stream *xdr, const nfs4_stateid *stateid) 1498d9fc6619STrond Myklebust { 1499d9fc6619STrond Myklebust __be32 *p; 1500d9fc6619STrond Myklebust 1501d9fc6619STrond Myklebust p = reserve_space(xdr, 4); 1502d9fc6619STrond Myklebust *p = cpu_to_be32(NFS4_OPEN_CLAIM_DELEG_CUR_FH); 1503d9fc6619STrond Myklebust encode_nfs4_stateid(xdr, stateid); 1504d9fc6619STrond Myklebust } 1505d9fc6619STrond Myklebust 1506cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 15071da177e4SLinus Torvalds { 1508ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN, decode_open_maxsz, hdr); 15091da177e4SLinus Torvalds encode_openhdr(xdr, arg); 15101da177e4SLinus Torvalds encode_opentype(xdr, arg); 15111da177e4SLinus Torvalds switch (arg->claim) { 15121da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 15131da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 15141da177e4SLinus Torvalds break; 15151da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 15161da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 15171da177e4SLinus Torvalds break; 15181da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 15191da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 15201da177e4SLinus Torvalds break; 1521d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_FH: 1522d9fc6619STrond Myklebust encode_claim_fh(xdr); 1523d9fc6619STrond Myklebust break; 1524d9fc6619STrond Myklebust case NFS4_OPEN_CLAIM_DELEG_CUR_FH: 1525d9fc6619STrond Myklebust encode_claim_delegate_cur_fh(xdr, &arg->u.delegation); 1526d9fc6619STrond Myklebust break; 15271da177e4SLinus Torvalds default: 15281da177e4SLinus Torvalds BUG(); 15291da177e4SLinus Torvalds } 15301da177e4SLinus Torvalds } 15311da177e4SLinus Torvalds 1532cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 15331da177e4SLinus Torvalds { 1534ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_CONFIRM, decode_open_confirm_maxsz, hdr); 1535ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15364ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 15371da177e4SLinus Torvalds } 15381da177e4SLinus Torvalds 1539cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 15401da177e4SLinus Torvalds { 1541ab19b481STrond Myklebust encode_op_hdr(xdr, OP_OPEN_DOWNGRADE, decode_open_downgrade_maxsz, hdr); 1542ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, arg->stateid); 15434ade9821STrond Myklebust encode_nfs4_seqid(xdr, arg->seqid); 1544dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 15451da177e4SLinus Torvalds } 15461da177e4SLinus Torvalds 1547cf8cdbe5SAndy Adamson static void 1548d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15491da177e4SLinus Torvalds { 1550ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTFH, decode_putfh_maxsz, hdr); 15516fdfb0bcSTrond Myklebust encode_string(xdr, fh->size, fh->data); 15521da177e4SLinus Torvalds } 15531da177e4SLinus Torvalds 1554cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15551da177e4SLinus Torvalds { 1556ab19b481STrond Myklebust encode_op_hdr(xdr, OP_PUTROOTFH, decode_putrootfh_maxsz, hdr); 15571da177e4SLinus Torvalds } 15581da177e4SLinus Torvalds 15593c6b899cSAnna Schumaker static void encode_read(struct xdr_stream *xdr, const struct nfs_pgio_args *args, 15603c6b899cSAnna Schumaker struct compound_hdr *hdr) 15611da177e4SLinus Torvalds { 15628687b63aSAl Viro __be32 *p; 15631da177e4SLinus Torvalds 1564ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READ, decode_read_maxsz, hdr); 15659b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 15661da177e4SLinus Torvalds 156713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1568b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 156934558513SBenny Halevy *p = cpu_to_be32(args->count); 15701da177e4SLinus Torvalds } 15711da177e4SLinus Torvalds 1572cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15731da177e4SLinus Torvalds { 1574aa9c2669SDavid Quigley uint32_t attrs[3] = { 157528331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 157628331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 157728331a46STrond Myklebust }; 15786f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 1579cd93710eSChuck Lever __be32 *p, verf[2]; 1580d204c5d2STrond Myklebust uint32_t attrlen = 0; 1581d204c5d2STrond Myklebust unsigned int i; 15821da177e4SLinus Torvalds 158382f2e547SBryan Schumaker if (readdir->plus) { 158482f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 158528331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 158682f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 158782f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 158882f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 158982f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 1590d204c5d2STrond Myklebust attrs[2] |= FATTR4_WORD2_SECURITY_LABEL; 15916f7a35bdSTrond Myklebust dircount >>= 1; 159282f2e547SBryan Schumaker } 159328331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 159428331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 159528331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 1596d204c5d2STrond Myklebust for (i = 0; i < ARRAY_SIZE(attrs); i++) { 1597d204c5d2STrond Myklebust attrs[i] &= readdir->bitmask[i]; 1598d204c5d2STrond Myklebust if (attrs[i] != 0) 1599d204c5d2STrond Myklebust attrlen = i+1; 1600d204c5d2STrond Myklebust } 16016f7a35bdSTrond Myklebust 1602475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr); 1603ff2eb681STrond Myklebust encode_uint64(xdr, readdir->cookie); 1604cd93710eSChuck Lever encode_nfs4_verifier(xdr, &readdir->verifier); 1605d204c5d2STrond Myklebust p = reserve_space(xdr, 12 + (attrlen << 2)); 16066f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 16076f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 1608d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrlen); 1609d204c5d2STrond Myklebust for (i = 0; i < attrlen; i++) 1610d204c5d2STrond Myklebust *p++ = cpu_to_be32(attrs[i]); 1611cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 1612aa9c2669SDavid Quigley 1613aa9c2669SDavid Quigley dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n", 161444109241SFred Isaman __func__, 1615eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1616cd93710eSChuck Lever verf[0], verf[1], 1617eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1618aa9c2669SDavid Quigley attrs[1] & readdir->bitmask[1], 1619aa9c2669SDavid Quigley attrs[2] & readdir->bitmask[2]); 16201da177e4SLinus Torvalds } 16211da177e4SLinus Torvalds 1622cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 16231da177e4SLinus Torvalds { 1624ab19b481STrond Myklebust encode_op_hdr(xdr, OP_READLINK, decode_readlink_maxsz, hdr); 16251da177e4SLinus Torvalds } 16261da177e4SLinus Torvalds 1627cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16281da177e4SLinus Torvalds { 1629ab19b481STrond Myklebust encode_op_hdr(xdr, OP_REMOVE, decode_remove_maxsz, hdr); 16306fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 16311da177e4SLinus Torvalds } 16321da177e4SLinus Torvalds 1633cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16341da177e4SLinus Torvalds { 1635ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RENAME, decode_rename_maxsz, hdr); 1636811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1637811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 16381da177e4SLinus Torvalds } 16391da177e4SLinus Torvalds 1640bb4dae5eSChuck Lever static void encode_renew(struct xdr_stream *xdr, clientid4 clid, 1641bb4dae5eSChuck Lever struct compound_hdr *hdr) 16421da177e4SLinus Torvalds { 1643475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RENEW, decode_renew_maxsz, hdr); 1644ff2eb681STrond Myklebust encode_uint64(xdr, clid); 16451da177e4SLinus Torvalds } 16461da177e4SLinus Torvalds 1647cf8cdbe5SAndy Adamson static void 1648d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 164956ae19f3STrond Myklebust { 1650ab19b481STrond Myklebust encode_op_hdr(xdr, OP_RESTOREFH, decode_restorefh_maxsz, hdr); 165156ae19f3STrond Myklebust } 165256ae19f3STrond Myklebust 16539f06c719SChuck Lever static void 1654d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 165523ec6965SJ. Bruce Fields { 16568687b63aSAl Viro __be32 *p; 165723ec6965SJ. Bruce Fields 1658ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setacl_maxsz, hdr); 1659ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &zero_stateid); 166013c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1661e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 166234558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 166313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 166434558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 166523ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 166623ec6965SJ. Bruce Fields } 166723ec6965SJ. Bruce Fields 1668cf8cdbe5SAndy Adamson static void 1669d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16701da177e4SLinus Torvalds { 1671ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SAVEFH, decode_savefh_maxsz, hdr); 16721da177e4SLinus Torvalds } 16731da177e4SLinus Torvalds 1674cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16751da177e4SLinus Torvalds { 1676ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr); 1677ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &arg->stateid); 1678aa9c2669SDavid Quigley encode_attrs(xdr, arg->iap, arg->label, server); 16791da177e4SLinus Torvalds } 16801da177e4SLinus Torvalds 1681cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16821da177e4SLinus Torvalds { 16838687b63aSAl Viro __be32 *p; 16841da177e4SLinus Torvalds 168570019514STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID, decode_setclientid_maxsz, hdr); 1686cd93710eSChuck Lever encode_nfs4_verifier(xdr, setclientid->sc_verifier); 16871da177e4SLinus Torvalds 16881da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 168913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 169034558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16911da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16921da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 169313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 169434558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 16951da177e4SLinus Torvalds } 16961da177e4SLinus Torvalds 1697bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16981da177e4SLinus Torvalds { 1699475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM, 1700475d4ba0STrond Myklebust decode_setclientid_confirm_maxsz, hdr); 1701ff2eb681STrond Myklebust encode_uint64(xdr, arg->clientid); 1702cd93710eSChuck Lever encode_nfs4_verifier(xdr, &arg->confirm); 17031da177e4SLinus Torvalds } 17041da177e4SLinus Torvalds 17053c6b899cSAnna Schumaker static void encode_write(struct xdr_stream *xdr, const struct nfs_pgio_args *args, 17063c6b899cSAnna Schumaker struct compound_hdr *hdr) 17071da177e4SLinus Torvalds { 17088687b63aSAl Viro __be32 *p; 17091da177e4SLinus Torvalds 1710ab19b481STrond Myklebust encode_op_hdr(xdr, OP_WRITE, decode_write_maxsz, hdr); 17119b206149STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 17121da177e4SLinus Torvalds 171313c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1714b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1715e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 171634558513SBenny Halevy *p = cpu_to_be32(args->count); 17171da177e4SLinus Torvalds 17181da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 17191da177e4SLinus Torvalds } 17201da177e4SLinus Torvalds 1721cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 17221da177e4SLinus Torvalds { 1723ab19b481STrond Myklebust encode_op_hdr(xdr, OP_DELEGRETURN, decode_delegreturn_maxsz, hdr); 1724ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, stateid); 17251da177e4SLinus Torvalds } 17269b7b9fccSAndy Adamson 17275a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 17285a5ea0d4SBryan Schumaker { 1729ab19b481STrond Myklebust encode_op_hdr(xdr, OP_SECINFO, decode_secinfo_maxsz, hdr); 17306fdfb0bcSTrond Myklebust encode_string(xdr, name->len, name->name); 17315a5ea0d4SBryan Schumaker } 17325a5ea0d4SBryan Schumaker 173399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 17349b7b9fccSAndy Adamson /* NFSv4.1 operations */ 17357c44f1aeSWeston Andros Adamson static void encode_bind_conn_to_session(struct xdr_stream *xdr, 17367c44f1aeSWeston Andros Adamson struct nfs4_session *session, 17377c44f1aeSWeston Andros Adamson struct compound_hdr *hdr) 17387c44f1aeSWeston Andros Adamson { 17397c44f1aeSWeston Andros Adamson __be32 *p; 17407c44f1aeSWeston Andros Adamson 17417c44f1aeSWeston Andros Adamson encode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION, 17427c44f1aeSWeston Andros Adamson decode_bind_conn_to_session_maxsz, hdr); 17437c44f1aeSWeston Andros Adamson encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17447c44f1aeSWeston Andros Adamson p = xdr_reserve_space(xdr, 8); 17457c44f1aeSWeston Andros Adamson *p++ = cpu_to_be32(NFS4_CDFC4_BACK_OR_BOTH); 17467c44f1aeSWeston Andros Adamson *p = 0; /* use_conn_in_rdma_mode = False */ 17477c44f1aeSWeston Andros Adamson } 17487c44f1aeSWeston Andros Adamson 17492031cd1aSWeston Andros Adamson static void encode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 17502031cd1aSWeston Andros Adamson { 17512031cd1aSWeston Andros Adamson unsigned int i; 17522031cd1aSWeston Andros Adamson encode_uint32(xdr, NFS4_OP_MAP_NUM_WORDS); 17532031cd1aSWeston Andros Adamson for (i = 0; i < NFS4_OP_MAP_NUM_WORDS; i++) 17542031cd1aSWeston Andros Adamson encode_uint32(xdr, op_map->u.words[i]); 17552031cd1aSWeston Andros Adamson } 17562031cd1aSWeston Andros Adamson 175799fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 175899fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 175999fe60d0SBenny Halevy struct compound_hdr *hdr) 176099fe60d0SBenny Halevy { 176199fe60d0SBenny Halevy __be32 *p; 1762d751f748SJim Rees char impl_name[IMPL_NAME_LIMIT]; 1763db8ac8baSWeston Andros Adamson int len = 0; 176499fe60d0SBenny Halevy 176570019514STrond Myklebust encode_op_hdr(xdr, OP_EXCHANGE_ID, decode_exchange_id_maxsz, hdr); 1766cd93710eSChuck Lever encode_nfs4_verifier(xdr, args->verifier); 176799fe60d0SBenny Halevy 176899fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 176999fe60d0SBenny Halevy 17702031cd1aSWeston Andros Adamson encode_uint32(xdr, args->flags); 17712031cd1aSWeston Andros Adamson encode_uint32(xdr, args->state_protect.how); 17722031cd1aSWeston Andros Adamson 17732031cd1aSWeston Andros Adamson switch (args->state_protect.how) { 17742031cd1aSWeston Andros Adamson case SP4_NONE: 17752031cd1aSWeston Andros Adamson break; 17762031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 17772031cd1aSWeston Andros Adamson encode_op_map(xdr, &args->state_protect.enforce); 17782031cd1aSWeston Andros Adamson encode_op_map(xdr, &args->state_protect.allow); 17792031cd1aSWeston Andros Adamson break; 17802031cd1aSWeston Andros Adamson default: 17812031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 17822031cd1aSWeston Andros Adamson break; 17832031cd1aSWeston Andros Adamson } 1784db8ac8baSWeston Andros Adamson 1785db8ac8baSWeston Andros Adamson if (send_implementation_id && 1786db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1787db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1788d751f748SJim Rees <= sizeof(impl_name) + 1) 1789db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1790db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1791db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1792db8ac8baSWeston Andros Adamson 1793db8ac8baSWeston Andros Adamson if (len > 0) { 17942031cd1aSWeston Andros Adamson encode_uint32(xdr, 1); /* implementation id array length=1 */ 1795db8ac8baSWeston Andros Adamson 1796db8ac8baSWeston Andros Adamson encode_string(xdr, 1797db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1798db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1799db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1800db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1801db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1802db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1803db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1804db8ac8baSWeston Andros Adamson } else 18052031cd1aSWeston Andros Adamson encode_uint32(xdr, 0); /* implementation id array length=0 */ 180699fe60d0SBenny Halevy } 1807fc931582SAndy Adamson 1808fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1809fc931582SAndy Adamson struct nfs41_create_session_args *args, 1810fc931582SAndy Adamson struct compound_hdr *hdr) 1811fc931582SAndy Adamson { 1812fc931582SAndy Adamson __be32 *p; 1813fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1814fc931582SAndy Adamson uint32_t len; 1815fc931582SAndy Adamson struct nfs_client *clp = args->client; 1816f092075dSChuck Lever struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); 18178e0d46e1SMike Sager u32 max_resp_sz_cached; 18188e0d46e1SMike Sager 18198e0d46e1SMike Sager /* 18208e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 18218e0d46e1SMike Sager * 2 is the verifier. 18228e0d46e1SMike Sager */ 18238e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 18248e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1825fc931582SAndy Adamson 1826fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1827fc931582SAndy Adamson clp->cl_ipaddr); 182842edd698SBenny Halevy 1829475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr); 1830475d4ba0STrond Myklebust p = reserve_space(xdr, 16 + 2*28 + 20 + len + 12); 1831114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1832e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1833e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1834fc931582SAndy Adamson 1835fc931582SAndy Adamson /* Fore Channel */ 1836c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1837e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1838e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 18398e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1840e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1841e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1842e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1843fc931582SAndy Adamson 1844fc931582SAndy Adamson /* Back Channel */ 1845c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1846e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1847e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1848e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1849e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1850e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1851e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1852fc931582SAndy Adamson 1853e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1854e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1855e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1856fc931582SAndy Adamson 1857fc931582SAndy Adamson /* authsys_parms rfc1831 */ 185817f26b12STrond Myklebust *p++ = cpu_to_be32(nn->boot_time.tv_nsec); /* stamp */ 1859811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1860e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1861e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 186234558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1863fc931582SAndy Adamson } 18640f3e66c6SAndy Adamson 18650f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18660f3e66c6SAndy Adamson struct nfs4_session *session, 18670f3e66c6SAndy Adamson struct compound_hdr *hdr) 18680f3e66c6SAndy Adamson { 1869475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_SESSION, decode_destroy_session_maxsz, hdr); 1870475d4ba0STrond Myklebust encode_opaque_fixed(xdr, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18710f3e66c6SAndy Adamson } 187218019753SRicardo Labiaga 187366245539STrond Myklebust static void encode_destroy_clientid(struct xdr_stream *xdr, 187466245539STrond Myklebust uint64_t clientid, 187566245539STrond Myklebust struct compound_hdr *hdr) 187666245539STrond Myklebust { 187766245539STrond Myklebust encode_op_hdr(xdr, OP_DESTROY_CLIENTID, decode_destroy_clientid_maxsz, hdr); 187866245539STrond Myklebust encode_uint64(xdr, clientid); 187966245539STrond Myklebust } 188066245539STrond Myklebust 188118019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 188218019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 188318019753SRicardo Labiaga struct compound_hdr *hdr) 188418019753SRicardo Labiaga { 1885475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_RECLAIM_COMPLETE, decode_reclaim_complete_maxsz, hdr); 1886475d4ba0STrond Myklebust encode_uint32(xdr, args->one_fs); 188718019753SRicardo Labiaga } 188899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 188999fe60d0SBenny Halevy 18909b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18919b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18929b7b9fccSAndy Adamson struct compound_hdr *hdr) 18939b7b9fccSAndy Adamson { 18949b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18952b2fa717STrond Myklebust struct nfs4_session *session; 1896fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 18972b2fa717STrond Myklebust struct nfs4_slot *slot = args->sa_slot; 1898fc01cea9SAndy Adamson __be32 *p; 18999b7b9fccSAndy Adamson 19002b2fa717STrond Myklebust tp = slot->table; 19012b2fa717STrond Myklebust session = tp->session; 19023bd2384aSChuck Lever if (!session) 19033bd2384aSChuck Lever return; 1904fc01cea9SAndy Adamson 1905475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SEQUENCE, decode_sequence_maxsz, hdr); 1906fc01cea9SAndy Adamson 1907fc01cea9SAndy Adamson /* 1908fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1909fc01cea9SAndy Adamson */ 1910fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1911fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1912fc01cea9SAndy Adamson __func__, 1913fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1914fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1915fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1916fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 19172b2fa717STrond Myklebust slot->seq_nr, slot->slot_nr, 1918fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1919475d4ba0STrond Myklebust p = reserve_space(xdr, NFS4_MAX_SESSIONID_LEN + 16); 192093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1921e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 19222b2fa717STrond Myklebust *p++ = cpu_to_be32(slot->slot_nr); 1923e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 192434558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 19259b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 19269b7b9fccSAndy Adamson } 19279b7b9fccSAndy Adamson 1928b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1929b1f69b75SAndy Adamson static void 19307f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 19317f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 19327f11d8d3SAndy Adamson struct compound_hdr *hdr) 19337f11d8d3SAndy Adamson { 19347f11d8d3SAndy Adamson __be32 *p; 19357f11d8d3SAndy Adamson nfs4_verifier dummy = { 19367f11d8d3SAndy Adamson .data = "dummmmmy", 19377f11d8d3SAndy Adamson }; 19387f11d8d3SAndy Adamson 1939475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICELIST, decode_getdevicelist_maxsz, hdr); 1940475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 19417f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 19427f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 19437f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 19447f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 19457f11d8d3SAndy Adamson } 19467f11d8d3SAndy Adamson 19477f11d8d3SAndy Adamson static void 1948b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1949b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1950b1f69b75SAndy Adamson struct compound_hdr *hdr) 1951b1f69b75SAndy Adamson { 1952b1f69b75SAndy Adamson __be32 *p; 1953b1f69b75SAndy Adamson 1954475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_GETDEVICEINFO, decode_getdeviceinfo_maxsz, hdr); 1955475d4ba0STrond Myklebust p = reserve_space(xdr, 12 + NFS4_DEVICEID4_SIZE); 1956b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1957b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1958b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1959f1c097beSAndy Adamson *p++ = cpu_to_be32(args->pdev->maxcount); /* gdia_maxcount */ 1960b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1961b1f69b75SAndy Adamson } 1962b1f69b75SAndy Adamson 1963b1f69b75SAndy Adamson static void 1964b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1965b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1966b1f69b75SAndy Adamson struct compound_hdr *hdr) 1967b1f69b75SAndy Adamson { 1968b1f69b75SAndy Adamson __be32 *p; 1969b1f69b75SAndy Adamson 1970475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTGET, decode_layoutget_maxsz, hdr); 1971475d4ba0STrond Myklebust p = reserve_space(xdr, 36); 1972b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1973b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1974b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1975b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1976b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1977b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1978ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 1979475d4ba0STrond Myklebust encode_uint32(xdr, args->maxcount); 1980b1f69b75SAndy Adamson 1981b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1982b1f69b75SAndy Adamson __func__, 1983b1f69b75SAndy Adamson args->type, 1984b1f69b75SAndy Adamson args->range.iomode, 1985b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1986b1f69b75SAndy Adamson (unsigned long)args->range.length, 1987b1f69b75SAndy Adamson args->maxcount); 1988b1f69b75SAndy Adamson } 1989863a3c6cSAndy Adamson 1990863a3c6cSAndy Adamson static int 1991863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1992ac7db726SBenny Halevy struct inode *inode, 1993863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1994863a3c6cSAndy Adamson struct compound_hdr *hdr) 1995863a3c6cSAndy Adamson { 1996863a3c6cSAndy Adamson __be32 *p; 1997863a3c6cSAndy Adamson 1998863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1999863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 2000863a3c6cSAndy Adamson 2001475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTCOMMIT, decode_layoutcommit_maxsz, hdr); 2002475d4ba0STrond Myklebust p = reserve_space(xdr, 20); 2003863a3c6cSAndy Adamson /* Only whole file layouts */ 2004863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 20053557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 2006ea9d23f5STrond Myklebust *p = cpu_to_be32(0); /* reclaim */ 2007ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 2008ea9d23f5STrond Myklebust p = reserve_space(xdr, 20); 2009863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 2010863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 2011863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 2012863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 2013ac7db726SBenny Halevy 2014ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 2015ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 2016ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 2017475d4ba0STrond Myklebust else 2018475d4ba0STrond Myklebust encode_uint32(xdr, 0); /* no layout-type payload */ 2019863a3c6cSAndy Adamson 2020863a3c6cSAndy Adamson return 0; 2021863a3c6cSAndy Adamson } 2022cbe82603SBenny Halevy 2023cbe82603SBenny Halevy static void 2024cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2025cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2026cbe82603SBenny Halevy struct compound_hdr *hdr) 2027cbe82603SBenny Halevy { 2028cbe82603SBenny Halevy __be32 *p; 2029cbe82603SBenny Halevy 2030475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_LAYOUTRETURN, decode_layoutreturn_maxsz, hdr); 2031475d4ba0STrond Myklebust p = reserve_space(xdr, 16); 2032cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2033cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 2034cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 2035cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2036ea9d23f5STrond Myklebust p = reserve_space(xdr, 16); 2037cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 2038cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 2039cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2040ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 2041cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 204204a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 204304a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 204404a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 2045475d4ba0STrond Myklebust } else 2046475d4ba0STrond Myklebust encode_uint32(xdr, 0); 2047cbe82603SBenny Halevy } 2048fca78d6dSBryan Schumaker 2049fca78d6dSBryan Schumaker static int 2050fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2051fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2052fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2053fca78d6dSBryan Schumaker { 2054475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_SECINFO_NO_NAME, decode_secinfo_no_name_maxsz, hdr); 2055475d4ba0STrond Myklebust encode_uint32(xdr, args->style); 2056fca78d6dSBryan Schumaker return 0; 2057fca78d6dSBryan Schumaker } 20587d974794SBryan Schumaker 20597d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20607d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20617d974794SBryan Schumaker struct compound_hdr *hdr) 20627d974794SBryan Schumaker { 2063475d4ba0STrond Myklebust encode_op_hdr(xdr, OP_TEST_STATEID, decode_test_stateid_maxsz, hdr); 2064475d4ba0STrond Myklebust encode_uint32(xdr, 1); 2065ea9d23f5STrond Myklebust encode_nfs4_stateid(xdr, args->stateid); 20667d974794SBryan Schumaker } 20679aeda35fSBryan Schumaker 20689aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20699aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20709aeda35fSBryan Schumaker struct compound_hdr *hdr) 20719aeda35fSBryan Schumaker { 2072ab19b481STrond Myklebust encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr); 20737c1d5faeSTrond Myklebust encode_nfs4_stateid(xdr, &args->stateid); 20749aeda35fSBryan Schumaker } 2075b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2076b1f69b75SAndy Adamson 20771da177e4SLinus Torvalds /* 20781da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20791da177e4SLinus Torvalds */ 20801da177e4SLinus Torvalds 208166cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 208266cc0429SBenny Halevy { 208366cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 20843bd2384aSChuck Lever struct nfs4_session *session = args->sa_slot->table->session; 20853bd2384aSChuck Lever if (session) 20863bd2384aSChuck Lever return session->clp->cl_mvops->minor_version; 208766cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 208866cc0429SBenny Halevy return 0; 208966cc0429SBenny Halevy } 209066cc0429SBenny Halevy 20911da177e4SLinus Torvalds /* 20921da177e4SLinus Torvalds * Encode an ACCESS request 20931da177e4SLinus Torvalds */ 20949f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 20959f06c719SChuck Lever const struct nfs4_accessargs *args) 20961da177e4SLinus Torvalds { 20971da177e4SLinus Torvalds struct compound_hdr hdr = { 209866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20991da177e4SLinus Torvalds }; 21001da177e4SLinus Torvalds 21019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21039f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21049f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 21059f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2106d017931cSAndy Adamson encode_nops(&hdr); 21071da177e4SLinus Torvalds } 21081da177e4SLinus Torvalds 21091da177e4SLinus Torvalds /* 21101da177e4SLinus Torvalds * Encode LOOKUP request 21111da177e4SLinus Torvalds */ 21129f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 21139f06c719SChuck Lever const struct nfs4_lookup_arg *args) 21141da177e4SLinus Torvalds { 21151da177e4SLinus Torvalds struct compound_hdr hdr = { 211666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21171da177e4SLinus Torvalds }; 21181da177e4SLinus Torvalds 21199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21209f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21219f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21229f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21239f06c719SChuck Lever encode_getfh(xdr, &hdr); 21249f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2125d017931cSAndy Adamson encode_nops(&hdr); 21261da177e4SLinus Torvalds } 21271da177e4SLinus Torvalds 21281da177e4SLinus Torvalds /* 21291da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21301da177e4SLinus Torvalds */ 21319f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21329f06c719SChuck Lever struct xdr_stream *xdr, 21339f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 21341da177e4SLinus Torvalds { 21351da177e4SLinus Torvalds struct compound_hdr hdr = { 213666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21371da177e4SLinus Torvalds }; 21381da177e4SLinus Torvalds 21399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21409f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21419f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21429f06c719SChuck Lever encode_getfh(xdr, &hdr); 21439f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2144d017931cSAndy Adamson encode_nops(&hdr); 21451da177e4SLinus Torvalds } 21461da177e4SLinus Torvalds 21471da177e4SLinus Torvalds /* 21481da177e4SLinus Torvalds * Encode REMOVE request 21491da177e4SLinus Torvalds */ 21509f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 21519f06c719SChuck Lever const struct nfs_removeargs *args) 21521da177e4SLinus Torvalds { 21531da177e4SLinus Torvalds struct compound_hdr hdr = { 215466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21551da177e4SLinus Torvalds }; 21561da177e4SLinus Torvalds 21579f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21589f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21599f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21609f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 2161d017931cSAndy Adamson encode_nops(&hdr); 21621da177e4SLinus Torvalds } 21631da177e4SLinus Torvalds 21641da177e4SLinus Torvalds /* 21651da177e4SLinus Torvalds * Encode RENAME request 21661da177e4SLinus Torvalds */ 21679f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21689f06c719SChuck Lever const struct nfs_renameargs *args) 21691da177e4SLinus Torvalds { 21701da177e4SLinus Torvalds struct compound_hdr hdr = { 217166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21721da177e4SLinus Torvalds }; 21731da177e4SLinus Torvalds 21749f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21759f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21769f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21779f06c719SChuck Lever encode_savefh(xdr, &hdr); 21789f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21799f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 2180d017931cSAndy Adamson encode_nops(&hdr); 21811da177e4SLinus Torvalds } 21821da177e4SLinus Torvalds 21831da177e4SLinus Torvalds /* 21841da177e4SLinus Torvalds * Encode LINK request 21851da177e4SLinus Torvalds */ 21869f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21879f06c719SChuck Lever const struct nfs4_link_arg *args) 21881da177e4SLinus Torvalds { 21891da177e4SLinus Torvalds struct compound_hdr hdr = { 219066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21911da177e4SLinus Torvalds }; 21921da177e4SLinus Torvalds 21939f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21949f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21959f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21969f06c719SChuck Lever encode_savefh(xdr, &hdr); 21979f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21989f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 21999f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22009f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2201d017931cSAndy Adamson encode_nops(&hdr); 22021da177e4SLinus Torvalds } 22031da177e4SLinus Torvalds 22041da177e4SLinus Torvalds /* 22051da177e4SLinus Torvalds * Encode CREATE request 22061da177e4SLinus Torvalds */ 22079f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 22089f06c719SChuck Lever const struct nfs4_create_arg *args) 22091da177e4SLinus Torvalds { 22101da177e4SLinus Torvalds struct compound_hdr hdr = { 221166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22121da177e4SLinus Torvalds }; 22131da177e4SLinus Torvalds 22149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22159f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22169f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22179f06c719SChuck Lever encode_create(xdr, args, &hdr); 22189f06c719SChuck Lever encode_getfh(xdr, &hdr); 22199f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2220d017931cSAndy Adamson encode_nops(&hdr); 22211da177e4SLinus Torvalds } 22221da177e4SLinus Torvalds 22231da177e4SLinus Torvalds /* 22241da177e4SLinus Torvalds * Encode SYMLINK request 22251da177e4SLinus Torvalds */ 22269f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22279f06c719SChuck Lever const struct nfs4_create_arg *args) 22281da177e4SLinus Torvalds { 22299f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22301da177e4SLinus Torvalds } 22311da177e4SLinus Torvalds 22321da177e4SLinus Torvalds /* 22331da177e4SLinus Torvalds * Encode GETATTR request 22341da177e4SLinus Torvalds */ 22359f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22369f06c719SChuck Lever const struct nfs4_getattr_arg *args) 22371da177e4SLinus Torvalds { 22381da177e4SLinus Torvalds struct compound_hdr hdr = { 223966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22401da177e4SLinus Torvalds }; 22411da177e4SLinus Torvalds 22429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22459f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2246d017931cSAndy Adamson encode_nops(&hdr); 22471da177e4SLinus Torvalds } 22481da177e4SLinus Torvalds 22491da177e4SLinus Torvalds /* 22501da177e4SLinus Torvalds * Encode a CLOSE request 22511da177e4SLinus Torvalds */ 22529f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 22539f06c719SChuck Lever struct nfs_closeargs *args) 22541da177e4SLinus Torvalds { 22551da177e4SLinus Torvalds struct compound_hdr hdr = { 225666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22571da177e4SLinus Torvalds }; 22581da177e4SLinus Torvalds 22599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22619f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22629f06c719SChuck Lever encode_close(xdr, args, &hdr); 22639f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2264d017931cSAndy Adamson encode_nops(&hdr); 22651da177e4SLinus Torvalds } 22661da177e4SLinus Torvalds 22671da177e4SLinus Torvalds /* 22681da177e4SLinus Torvalds * Encode an OPEN request 22691da177e4SLinus Torvalds */ 22709f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22719f06c719SChuck Lever struct nfs_openargs *args) 22721da177e4SLinus Torvalds { 22731da177e4SLinus Torvalds struct compound_hdr hdr = { 227466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22751da177e4SLinus Torvalds }; 22761da177e4SLinus Torvalds 22779f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22789f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22799f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22809f06c719SChuck Lever encode_open(xdr, args, &hdr); 22819f06c719SChuck Lever encode_getfh(xdr, &hdr); 2282ae2bb032SWeston Andros Adamson if (args->access) 22836168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 22841549210fSTrond Myklebust encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2285d017931cSAndy Adamson encode_nops(&hdr); 22861da177e4SLinus Torvalds } 22871da177e4SLinus Torvalds 22881da177e4SLinus Torvalds /* 22891da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 22901da177e4SLinus Torvalds */ 22919f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 22929f06c719SChuck Lever struct xdr_stream *xdr, 22939f06c719SChuck Lever struct nfs_open_confirmargs *args) 22941da177e4SLinus Torvalds { 22951da177e4SLinus Torvalds struct compound_hdr hdr = { 2296d017931cSAndy Adamson .nops = 0, 22971da177e4SLinus Torvalds }; 22981da177e4SLinus Torvalds 22999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23009f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23019f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2302d017931cSAndy Adamson encode_nops(&hdr); 23031da177e4SLinus Torvalds } 23041da177e4SLinus Torvalds 23051da177e4SLinus Torvalds /* 23061da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 23071da177e4SLinus Torvalds */ 23089f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 23099f06c719SChuck Lever struct xdr_stream *xdr, 23109f06c719SChuck Lever struct nfs_openargs *args) 23111da177e4SLinus Torvalds { 23121da177e4SLinus Torvalds struct compound_hdr hdr = { 231366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23141da177e4SLinus Torvalds }; 23151da177e4SLinus Torvalds 23169f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23179f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23189f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23199f06c719SChuck Lever encode_open(xdr, args, &hdr); 2320ae2bb032SWeston Andros Adamson if (args->access) 23216168f62cSWeston Andros Adamson encode_access(xdr, args->access, &hdr); 2322e23008ecSAndy Adamson encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); 2323d017931cSAndy Adamson encode_nops(&hdr); 23241da177e4SLinus Torvalds } 23251da177e4SLinus Torvalds 23261da177e4SLinus Torvalds /* 23271da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23281da177e4SLinus Torvalds */ 23299f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23309f06c719SChuck Lever struct xdr_stream *xdr, 23319f06c719SChuck Lever struct nfs_closeargs *args) 23321da177e4SLinus Torvalds { 23331da177e4SLinus Torvalds struct compound_hdr hdr = { 233466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23351da177e4SLinus Torvalds }; 23361da177e4SLinus Torvalds 23379f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23389f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23399f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23409f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 23419f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2342d017931cSAndy Adamson encode_nops(&hdr); 23431da177e4SLinus Torvalds } 23441da177e4SLinus Torvalds 23451da177e4SLinus Torvalds /* 23461da177e4SLinus Torvalds * Encode a LOCK request 23471da177e4SLinus Torvalds */ 23489f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 23499f06c719SChuck Lever struct nfs_lock_args *args) 23501da177e4SLinus Torvalds { 23511da177e4SLinus Torvalds struct compound_hdr hdr = { 235266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23531da177e4SLinus Torvalds }; 23541da177e4SLinus Torvalds 23559f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23569f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23579f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23589f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2359d017931cSAndy Adamson encode_nops(&hdr); 23601da177e4SLinus Torvalds } 23611da177e4SLinus Torvalds 23621da177e4SLinus Torvalds /* 23631da177e4SLinus Torvalds * Encode a LOCKT request 23641da177e4SLinus Torvalds */ 23659f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23669f06c719SChuck Lever struct nfs_lockt_args *args) 23671da177e4SLinus Torvalds { 23681da177e4SLinus Torvalds struct compound_hdr hdr = { 236966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23701da177e4SLinus Torvalds }; 23711da177e4SLinus Torvalds 23729f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23739f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23749f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23759f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2376d017931cSAndy Adamson encode_nops(&hdr); 23771da177e4SLinus Torvalds } 23781da177e4SLinus Torvalds 23791da177e4SLinus Torvalds /* 23801da177e4SLinus Torvalds * Encode a LOCKU request 23811da177e4SLinus Torvalds */ 23829f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23839f06c719SChuck Lever struct nfs_locku_args *args) 23841da177e4SLinus Torvalds { 23851da177e4SLinus Torvalds struct compound_hdr hdr = { 238666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23871da177e4SLinus Torvalds }; 23881da177e4SLinus Torvalds 23899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23919f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23929f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2393d017931cSAndy Adamson encode_nops(&hdr); 23941da177e4SLinus Torvalds } 23951da177e4SLinus Torvalds 23969f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 23979f06c719SChuck Lever struct xdr_stream *xdr, 23989f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2399d3c7b7ccSTrond Myklebust { 2400d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2401d3c7b7ccSTrond Myklebust .minorversion = 0, 2402d3c7b7ccSTrond Myklebust }; 2403d3c7b7ccSTrond Myklebust 24049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24059f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2406d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2407d3c7b7ccSTrond Myklebust } 2408d3c7b7ccSTrond Myklebust 24091da177e4SLinus Torvalds /* 24101da177e4SLinus Torvalds * Encode a READLINK request 24111da177e4SLinus Torvalds */ 24129f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 24139f06c719SChuck Lever const struct nfs4_readlink *args) 24141da177e4SLinus Torvalds { 24151da177e4SLinus Torvalds struct compound_hdr hdr = { 241666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24171da177e4SLinus Torvalds }; 24181da177e4SLinus Torvalds 24199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24209f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24219f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24229f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2423e3a535e1STrond Myklebust 242428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2425e3a535e1STrond Myklebust args->pgbase, args->pglen); 2426d017931cSAndy Adamson encode_nops(&hdr); 24271da177e4SLinus Torvalds } 24281da177e4SLinus Torvalds 24291da177e4SLinus Torvalds /* 24301da177e4SLinus Torvalds * Encode a READDIR request 24311da177e4SLinus Torvalds */ 24329f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 24339f06c719SChuck Lever const struct nfs4_readdir_arg *args) 24341da177e4SLinus Torvalds { 24351da177e4SLinus Torvalds struct compound_hdr hdr = { 243666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24371da177e4SLinus Torvalds }; 24381da177e4SLinus Torvalds 24399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24409f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24419f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24429f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2443d6ac02dfSTrond Myklebust 244428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2445d6ac02dfSTrond Myklebust args->pgbase, args->count); 2446d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 244728f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2448d6ac02dfSTrond Myklebust args->pgbase, args->count); 2449d017931cSAndy Adamson encode_nops(&hdr); 24501da177e4SLinus Torvalds } 24511da177e4SLinus Torvalds 24521da177e4SLinus Torvalds /* 24531da177e4SLinus Torvalds * Encode a READ request 24541da177e4SLinus Torvalds */ 24559f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 24563c6b899cSAnna Schumaker struct nfs_pgio_args *args) 24571da177e4SLinus Torvalds { 24581da177e4SLinus Torvalds struct compound_hdr hdr = { 245966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24601da177e4SLinus Torvalds }; 24611da177e4SLinus Torvalds 24629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24649f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24659f06c719SChuck Lever encode_read(xdr, args, &hdr); 24661da177e4SLinus Torvalds 246728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24681da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24694f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2470d017931cSAndy Adamson encode_nops(&hdr); 24711da177e4SLinus Torvalds } 24721da177e4SLinus Torvalds 24731da177e4SLinus Torvalds /* 24741da177e4SLinus Torvalds * Encode an SETATTR request 24751da177e4SLinus Torvalds */ 24769f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24779f06c719SChuck Lever struct nfs_setattrargs *args) 24781da177e4SLinus Torvalds { 24791da177e4SLinus Torvalds struct compound_hdr hdr = { 248066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24811da177e4SLinus Torvalds }; 24821da177e4SLinus Torvalds 24839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24859f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24869f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 24879f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2488d017931cSAndy Adamson encode_nops(&hdr); 24891da177e4SLinus Torvalds } 24901da177e4SLinus Torvalds 24911da177e4SLinus Torvalds /* 2492029d105eSJ. Bruce Fields * Encode a GETACL request 2493029d105eSJ. Bruce Fields */ 24949f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2495029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2496029d105eSJ. Bruce Fields { 2497029d105eSJ. Bruce Fields struct compound_hdr hdr = { 249866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2499029d105eSJ. Bruce Fields }; 250028f56694SBenny Halevy uint32_t replen; 2501029d105eSJ. Bruce Fields 25029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25039f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25049f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2505bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 25069f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2507cf8cdbe5SAndy Adamson 250828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2509029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2510bf118a34SAndy Adamson 2511d017931cSAndy Adamson encode_nops(&hdr); 2512029d105eSJ. Bruce Fields } 2513029d105eSJ. Bruce Fields 2514029d105eSJ. Bruce Fields /* 25151da177e4SLinus Torvalds * Encode a WRITE request 25161da177e4SLinus Torvalds */ 25179f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 25183c6b899cSAnna Schumaker struct nfs_pgio_args *args) 25191da177e4SLinus Torvalds { 25201da177e4SLinus Torvalds struct compound_hdr hdr = { 252166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25221da177e4SLinus Torvalds }; 25231da177e4SLinus Torvalds 25249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25269f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25279f06c719SChuck Lever encode_write(xdr, args, &hdr); 25284f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25297ffd1064SFred Isaman if (args->bitmask) 25309f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2531d017931cSAndy Adamson encode_nops(&hdr); 25321da177e4SLinus Torvalds } 25331da177e4SLinus Torvalds 25341da177e4SLinus Torvalds /* 25351da177e4SLinus Torvalds * a COMMIT request 25361da177e4SLinus Torvalds */ 25379f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 25380b7c0153SFred Isaman struct nfs_commitargs *args) 25391da177e4SLinus Torvalds { 25401da177e4SLinus Torvalds struct compound_hdr hdr = { 254166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25421da177e4SLinus Torvalds }; 25431da177e4SLinus Torvalds 25449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25459f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25469f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25479f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2548d017931cSAndy Adamson encode_nops(&hdr); 25491da177e4SLinus Torvalds } 25501da177e4SLinus Torvalds 25511da177e4SLinus Torvalds /* 25521da177e4SLinus Torvalds * FSINFO request 25531da177e4SLinus Torvalds */ 25549f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 25559f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 25561da177e4SLinus Torvalds { 25571da177e4SLinus Torvalds struct compound_hdr hdr = { 255866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25591da177e4SLinus Torvalds }; 25601da177e4SLinus Torvalds 25619f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25629f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25639f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25649f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2565d017931cSAndy Adamson encode_nops(&hdr); 25661da177e4SLinus Torvalds } 25671da177e4SLinus Torvalds 25681da177e4SLinus Torvalds /* 25691da177e4SLinus Torvalds * a PATHCONF request 25701da177e4SLinus Torvalds */ 25719f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25729f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25731da177e4SLinus Torvalds { 25741da177e4SLinus Torvalds struct compound_hdr hdr = { 257566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25761da177e4SLinus Torvalds }; 25771da177e4SLinus Torvalds 25789f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25799f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25809f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25819f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2582d017931cSAndy Adamson &hdr); 2583d017931cSAndy Adamson encode_nops(&hdr); 25841da177e4SLinus Torvalds } 25851da177e4SLinus Torvalds 25861da177e4SLinus Torvalds /* 25871da177e4SLinus Torvalds * a STATFS request 25881da177e4SLinus Torvalds */ 25899f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 25909f06c719SChuck Lever const struct nfs4_statfs_arg *args) 25911da177e4SLinus Torvalds { 25921da177e4SLinus Torvalds struct compound_hdr hdr = { 259366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25941da177e4SLinus Torvalds }; 25951da177e4SLinus Torvalds 25969f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25979f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25989f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25999f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2600d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2601d017931cSAndy Adamson encode_nops(&hdr); 26021da177e4SLinus Torvalds } 26031da177e4SLinus Torvalds 26041da177e4SLinus Torvalds /* 26051da177e4SLinus Torvalds * GETATTR_BITMAP request 26061da177e4SLinus Torvalds */ 26079f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 26089f06c719SChuck Lever struct xdr_stream *xdr, 260943652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 26101da177e4SLinus Torvalds { 26111da177e4SLinus Torvalds struct compound_hdr hdr = { 261266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26131da177e4SLinus Torvalds }; 26141da177e4SLinus Torvalds 26159f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26169f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26179f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26189f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 2619264e6351SChuck Lever FATTR4_WORD0_FH_EXPIRE_TYPE| 26201da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 26211da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2622d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &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); 26879f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2688e144cbccSTrond Myklebust encode_delegreturn(xdr, args->stateid, &hdr); 2689d017931cSAndy Adamson encode_nops(&hdr); 26901da177e4SLinus Torvalds } 26911da177e4SLinus Torvalds 26921da177e4SLinus Torvalds /* 2693683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2694683b57b4STrond Myklebust */ 26959f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 26969f06c719SChuck Lever struct xdr_stream *xdr, 26979f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2698683b57b4STrond Myklebust { 2699683b57b4STrond Myklebust struct compound_hdr hdr = { 270066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2701683b57b4STrond Myklebust }; 270228f56694SBenny Halevy uint32_t replen; 2703683b57b4STrond Myklebust 27049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27059f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 2706b03d735bSChuck Lever if (args->migration) { 2707b03d735bSChuck Lever encode_putfh(xdr, args->fh, &hdr); 2708b03d735bSChuck Lever replen = hdr.replen; 2709b03d735bSChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2710b03d735bSChuck Lever if (args->renew) 2711b03d735bSChuck Lever encode_renew(xdr, args->clientid, &hdr); 2712b03d735bSChuck Lever } else { 27139f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 27149f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 2715b03d735bSChuck Lever replen = hdr.replen; 27169f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2717b03d735bSChuck Lever } 2718cf8cdbe5SAndy Adamson 2719b03d735bSChuck Lever /* Set up reply kvec to capture returned fs_locations array. */ 272028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2721683b57b4STrond Myklebust 0, PAGE_SIZE); 2722d017931cSAndy Adamson encode_nops(&hdr); 2723683b57b4STrond Myklebust } 2724683b57b4STrond Myklebust 27255a5ea0d4SBryan Schumaker /* 27265a5ea0d4SBryan Schumaker * Encode SECINFO request 27275a5ea0d4SBryan Schumaker */ 27285a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27295a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 27305a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 27315a5ea0d4SBryan Schumaker { 27325a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27335a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27345a5ea0d4SBryan Schumaker }; 27355a5ea0d4SBryan Schumaker 27365a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 27375a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 27385a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 27395a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 27405a5ea0d4SBryan Schumaker encode_nops(&hdr); 27415a5ea0d4SBryan Schumaker } 27425a5ea0d4SBryan Schumaker 274344c99933SChuck Lever /* 274444c99933SChuck Lever * Encode FSID_PRESENT request 274544c99933SChuck Lever */ 274644c99933SChuck Lever static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req, 274744c99933SChuck Lever struct xdr_stream *xdr, 274844c99933SChuck Lever struct nfs4_fsid_present_arg *args) 274944c99933SChuck Lever { 275044c99933SChuck Lever struct compound_hdr hdr = { 275144c99933SChuck Lever .minorversion = nfs4_xdr_minorversion(&args->seq_args), 275244c99933SChuck Lever }; 275344c99933SChuck Lever 275444c99933SChuck Lever encode_compound_hdr(xdr, req, &hdr); 275544c99933SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 275644c99933SChuck Lever encode_putfh(xdr, args->fh, &hdr); 275744c99933SChuck Lever encode_getfh(xdr, &hdr); 275844c99933SChuck Lever if (args->renew) 275944c99933SChuck Lever encode_renew(xdr, args->clientid, &hdr); 276044c99933SChuck Lever encode_nops(&hdr); 276144c99933SChuck Lever } 276244c99933SChuck Lever 276399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 276499fe60d0SBenny Halevy /* 27657c44f1aeSWeston Andros Adamson * BIND_CONN_TO_SESSION request 27667c44f1aeSWeston Andros Adamson */ 27677c44f1aeSWeston Andros Adamson static void nfs4_xdr_enc_bind_conn_to_session(struct rpc_rqst *req, 27687c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 27697c44f1aeSWeston Andros Adamson struct nfs_client *clp) 27707c44f1aeSWeston Andros Adamson { 27717c44f1aeSWeston Andros Adamson struct compound_hdr hdr = { 27727c44f1aeSWeston Andros Adamson .minorversion = clp->cl_mvops->minor_version, 27737c44f1aeSWeston Andros Adamson }; 27747c44f1aeSWeston Andros Adamson 27757c44f1aeSWeston Andros Adamson encode_compound_hdr(xdr, req, &hdr); 27767c44f1aeSWeston Andros Adamson encode_bind_conn_to_session(xdr, clp->cl_session, &hdr); 27777c44f1aeSWeston Andros Adamson encode_nops(&hdr); 27787c44f1aeSWeston Andros Adamson } 27797c44f1aeSWeston Andros Adamson 27807c44f1aeSWeston Andros Adamson /* 278199fe60d0SBenny Halevy * EXCHANGE_ID request 278299fe60d0SBenny Halevy */ 27839f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27849f06c719SChuck Lever struct xdr_stream *xdr, 278599fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 278699fe60d0SBenny Halevy { 278799fe60d0SBenny Halevy struct compound_hdr hdr = { 2788a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 278999fe60d0SBenny Halevy }; 279099fe60d0SBenny Halevy 27919f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27929f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 279399fe60d0SBenny Halevy encode_nops(&hdr); 279499fe60d0SBenny Halevy } 27952050f0ccSAndy Adamson 27962050f0ccSAndy Adamson /* 2797fc931582SAndy Adamson * a CREATE_SESSION request 2798fc931582SAndy Adamson */ 27999f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 28009f06c719SChuck Lever struct xdr_stream *xdr, 2801fc931582SAndy Adamson struct nfs41_create_session_args *args) 2802fc931582SAndy Adamson { 2803fc931582SAndy Adamson struct compound_hdr hdr = { 2804a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2805fc931582SAndy Adamson }; 2806fc931582SAndy Adamson 28079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28089f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2809fc931582SAndy Adamson encode_nops(&hdr); 2810fc931582SAndy Adamson } 2811fc931582SAndy Adamson 2812fc931582SAndy Adamson /* 28130f3e66c6SAndy Adamson * a DESTROY_SESSION request 28140f3e66c6SAndy Adamson */ 28159f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 28169f06c719SChuck Lever struct xdr_stream *xdr, 28170f3e66c6SAndy Adamson struct nfs4_session *session) 28180f3e66c6SAndy Adamson { 28190f3e66c6SAndy Adamson struct compound_hdr hdr = { 2820a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 28210f3e66c6SAndy Adamson }; 28220f3e66c6SAndy Adamson 28239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28249f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28250f3e66c6SAndy Adamson encode_nops(&hdr); 28260f3e66c6SAndy Adamson } 28270f3e66c6SAndy Adamson 28280f3e66c6SAndy Adamson /* 282966245539STrond Myklebust * a DESTROY_CLIENTID request 283066245539STrond Myklebust */ 283166245539STrond Myklebust static void nfs4_xdr_enc_destroy_clientid(struct rpc_rqst *req, 283266245539STrond Myklebust struct xdr_stream *xdr, 283366245539STrond Myklebust struct nfs_client *clp) 283466245539STrond Myklebust { 283566245539STrond Myklebust struct compound_hdr hdr = { 283666245539STrond Myklebust .minorversion = clp->cl_mvops->minor_version, 283766245539STrond Myklebust }; 283866245539STrond Myklebust 283966245539STrond Myklebust encode_compound_hdr(xdr, req, &hdr); 284066245539STrond Myklebust encode_destroy_clientid(xdr, clp->cl_clientid, &hdr); 284166245539STrond Myklebust encode_nops(&hdr); 284266245539STrond Myklebust } 284366245539STrond Myklebust 284466245539STrond Myklebust /* 2845fc01cea9SAndy Adamson * a SEQUENCE request 2846fc01cea9SAndy Adamson */ 28479f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2848fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2849fc01cea9SAndy Adamson { 2850fc01cea9SAndy Adamson struct compound_hdr hdr = { 2851fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2852fc01cea9SAndy Adamson }; 2853fc01cea9SAndy Adamson 28549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28559f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2856fc01cea9SAndy Adamson encode_nops(&hdr); 2857fc01cea9SAndy Adamson } 2858fc01cea9SAndy Adamson 2859fc01cea9SAndy Adamson /* 28602050f0ccSAndy Adamson * a GET_LEASE_TIME request 28612050f0ccSAndy Adamson */ 28629f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 28639f06c719SChuck Lever struct xdr_stream *xdr, 28642050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 28652050f0ccSAndy Adamson { 28662050f0ccSAndy Adamson struct compound_hdr hdr = { 28672050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 28682050f0ccSAndy Adamson }; 2869dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 28702050f0ccSAndy Adamson 28719f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28729f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 28739f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 28749f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 28752050f0ccSAndy Adamson encode_nops(&hdr); 28762050f0ccSAndy Adamson } 287718019753SRicardo Labiaga 287818019753SRicardo Labiaga /* 287918019753SRicardo Labiaga * a RECLAIM_COMPLETE request 288018019753SRicardo Labiaga */ 28819f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28829f06c719SChuck Lever struct xdr_stream *xdr, 288318019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 288418019753SRicardo Labiaga { 288518019753SRicardo Labiaga struct compound_hdr hdr = { 288618019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 288718019753SRicardo Labiaga }; 288818019753SRicardo Labiaga 28899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28919f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 289218019753SRicardo Labiaga encode_nops(&hdr); 289318019753SRicardo Labiaga } 289418019753SRicardo Labiaga 2895b1f69b75SAndy Adamson /* 28967f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28977f11d8d3SAndy Adamson */ 28987f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28997f11d8d3SAndy Adamson struct xdr_stream *xdr, 29007f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 29017f11d8d3SAndy Adamson { 29027f11d8d3SAndy Adamson struct compound_hdr hdr = { 29037f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29047f11d8d3SAndy Adamson }; 29057f11d8d3SAndy Adamson 29067f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 29077f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 29087f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 29097f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 29107f11d8d3SAndy Adamson encode_nops(&hdr); 29117f11d8d3SAndy Adamson } 29127f11d8d3SAndy Adamson 29137f11d8d3SAndy Adamson /* 2914b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2915b1f69b75SAndy Adamson */ 29169f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 29179f06c719SChuck Lever struct xdr_stream *xdr, 2918b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2919b1f69b75SAndy Adamson { 2920b1f69b75SAndy Adamson struct compound_hdr hdr = { 2921b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2922b1f69b75SAndy Adamson }; 2923b1f69b75SAndy Adamson 29249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29269f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2927b1f69b75SAndy Adamson 2928b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2929b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2930b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2931b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2932b1f69b75SAndy Adamson args->pdev->pglen); 2933b1f69b75SAndy Adamson 2934b1f69b75SAndy Adamson encode_nops(&hdr); 2935b1f69b75SAndy Adamson } 2936b1f69b75SAndy Adamson 2937b1f69b75SAndy Adamson /* 2938b1f69b75SAndy Adamson * Encode LAYOUTGET request 2939b1f69b75SAndy Adamson */ 29409f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29419f06c719SChuck Lever struct xdr_stream *xdr, 2942b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2943b1f69b75SAndy Adamson { 2944b1f69b75SAndy Adamson struct compound_hdr hdr = { 2945b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2946b1f69b75SAndy Adamson }; 2947b1f69b75SAndy Adamson 29489f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29499f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29509f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 29519f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 295235124a09SWeston Andros Adamson 295335124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 295435124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 295535124a09SWeston Andros Adamson 2956b1f69b75SAndy Adamson encode_nops(&hdr); 2957b1f69b75SAndy Adamson } 2958863a3c6cSAndy Adamson 2959863a3c6cSAndy Adamson /* 2960863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2961863a3c6cSAndy Adamson */ 2962cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2963863a3c6cSAndy Adamson struct xdr_stream *xdr, 2964863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2965863a3c6cSAndy Adamson { 2966ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2967ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2968863a3c6cSAndy Adamson struct compound_hdr hdr = { 2969863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2970863a3c6cSAndy Adamson }; 2971863a3c6cSAndy Adamson 2972863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2973863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2974863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2975ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2976863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2977863a3c6cSAndy Adamson encode_nops(&hdr); 2978cbe82603SBenny Halevy } 2979cbe82603SBenny Halevy 2980cbe82603SBenny Halevy /* 2981cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2982cbe82603SBenny Halevy */ 2983cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2984cbe82603SBenny Halevy struct xdr_stream *xdr, 2985cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2986cbe82603SBenny Halevy { 2987cbe82603SBenny Halevy struct compound_hdr hdr = { 2988cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2989cbe82603SBenny Halevy }; 2990cbe82603SBenny Halevy 2991cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2992cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2993cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2994cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2995cbe82603SBenny Halevy encode_nops(&hdr); 2996863a3c6cSAndy Adamson } 2997fca78d6dSBryan Schumaker 2998fca78d6dSBryan Schumaker /* 2999fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 3000fca78d6dSBryan Schumaker */ 3001fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 3002fca78d6dSBryan Schumaker struct xdr_stream *xdr, 3003fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 3004fca78d6dSBryan Schumaker { 3005fca78d6dSBryan Schumaker struct compound_hdr hdr = { 3006fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3007fca78d6dSBryan Schumaker }; 3008fca78d6dSBryan Schumaker 3009fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 3010fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 3011fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 3012fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 3013fca78d6dSBryan Schumaker encode_nops(&hdr); 3014fca78d6dSBryan Schumaker return 0; 3015fca78d6dSBryan Schumaker } 30167d974794SBryan Schumaker 30177d974794SBryan Schumaker /* 30187d974794SBryan Schumaker * Encode TEST_STATEID request 30197d974794SBryan Schumaker */ 30207d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 30217d974794SBryan Schumaker struct xdr_stream *xdr, 30227d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 30237d974794SBryan Schumaker { 30247d974794SBryan Schumaker struct compound_hdr hdr = { 30257d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30267d974794SBryan Schumaker }; 30277d974794SBryan Schumaker 30287d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30297d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30307d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 30317d974794SBryan Schumaker encode_nops(&hdr); 30327d974794SBryan Schumaker } 30339aeda35fSBryan Schumaker 30349aeda35fSBryan Schumaker /* 30359aeda35fSBryan Schumaker * Encode FREE_STATEID request 30369aeda35fSBryan Schumaker */ 30379aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 30389aeda35fSBryan Schumaker struct xdr_stream *xdr, 30399aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 30409aeda35fSBryan Schumaker { 30419aeda35fSBryan Schumaker struct compound_hdr hdr = { 30429aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30439aeda35fSBryan Schumaker }; 30449aeda35fSBryan Schumaker 30459aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30469aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30479aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 30489aeda35fSBryan Schumaker encode_nops(&hdr); 30499aeda35fSBryan Schumaker } 305099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 305199fe60d0SBenny Halevy 3052686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3053686841b3SBenny Halevy { 3054686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3055686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3056686841b3SBenny Halevy func, xdr->end - xdr->p); 3057686841b3SBenny Halevy } 30581da177e4SLinus Torvalds 3059683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 30601da177e4SLinus Torvalds { 30618687b63aSAl Viro __be32 *p; 30621da177e4SLinus Torvalds 3063c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3064c0eae66eSBenny Halevy if (unlikely(!p)) 3065c0eae66eSBenny Halevy goto out_overflow; 3066cccddf4fSBenny Halevy *len = be32_to_cpup(p); 3067c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 3068c0eae66eSBenny Halevy if (unlikely(!p)) 3069c0eae66eSBenny Halevy goto out_overflow; 30701da177e4SLinus Torvalds *string = (char *)p; 30711da177e4SLinus Torvalds return 0; 3072c0eae66eSBenny Halevy out_overflow: 3073c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3074c0eae66eSBenny Halevy return -EIO; 30751da177e4SLinus Torvalds } 30761da177e4SLinus Torvalds 30771da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 30781da177e4SLinus Torvalds { 30798687b63aSAl Viro __be32 *p; 30801da177e4SLinus Torvalds 3081c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3082c0eae66eSBenny Halevy if (unlikely(!p)) 3083c0eae66eSBenny Halevy goto out_overflow; 30846f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3085cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30861da177e4SLinus Torvalds 3087c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3088c0eae66eSBenny Halevy if (unlikely(!p)) 3089c0eae66eSBenny Halevy goto out_overflow; 30901da177e4SLinus Torvalds hdr->tag = (char *)p; 30911da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3092cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3093aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3094aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30951da177e4SLinus Torvalds return 0; 3096c0eae66eSBenny Halevy out_overflow: 3097c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3098c0eae66eSBenny Halevy return -EIO; 30991da177e4SLinus Torvalds } 31001da177e4SLinus Torvalds 3101c7848f69STrond Myklebust static bool __decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected, 3102c7848f69STrond Myklebust int *nfs_retval) 31031da177e4SLinus Torvalds { 31048687b63aSAl Viro __be32 *p; 31051da177e4SLinus Torvalds uint32_t opnum; 31061da177e4SLinus Torvalds int32_t nfserr; 31071da177e4SLinus Torvalds 3108c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3109c0eae66eSBenny Halevy if (unlikely(!p)) 3110c0eae66eSBenny Halevy goto out_overflow; 31116f723f77SBenny Halevy opnum = be32_to_cpup(p++); 3112c7848f69STrond Myklebust if (unlikely(opnum != expected)) 3113c7848f69STrond Myklebust goto out_bad_operation; 3114c7848f69STrond Myklebust nfserr = be32_to_cpup(p); 3115c7848f69STrond Myklebust if (nfserr == NFS_OK) 3116c7848f69STrond Myklebust *nfs_retval = 0; 3117c7848f69STrond Myklebust else 3118c7848f69STrond Myklebust *nfs_retval = nfs4_stat_to_errno(nfserr); 3119c7848f69STrond Myklebust return true; 3120c7848f69STrond Myklebust out_bad_operation: 3121fe82a183SChuck Lever dprintk("nfs: Server returned operation" 31221da177e4SLinus Torvalds " %d but we issued a request for %d\n", 31231da177e4SLinus Torvalds opnum, expected); 3124c7848f69STrond Myklebust *nfs_retval = -EREMOTEIO; 3125c7848f69STrond Myklebust return false; 3126c0eae66eSBenny Halevy out_overflow: 3127c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3128c7848f69STrond Myklebust *nfs_retval = -EIO; 3129c7848f69STrond Myklebust return false; 3130c7848f69STrond Myklebust } 3131c7848f69STrond Myklebust 3132c7848f69STrond Myklebust static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 3133c7848f69STrond Myklebust { 3134c7848f69STrond Myklebust int retval; 3135c7848f69STrond Myklebust 3136c7848f69STrond Myklebust __decode_op_hdr(xdr, expected, &retval); 3137c7848f69STrond Myklebust return retval; 31381da177e4SLinus Torvalds } 31391da177e4SLinus Torvalds 31401da177e4SLinus Torvalds /* Dummy routine */ 3141adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 31421da177e4SLinus Torvalds { 31438687b63aSAl Viro __be32 *p; 3144683b57b4STrond Myklebust unsigned int strlen; 31451da177e4SLinus Torvalds char *str; 31461da177e4SLinus Torvalds 3147c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3148c0eae66eSBenny Halevy if (likely(p)) 31491da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3150c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3151c0eae66eSBenny Halevy return -EIO; 31521da177e4SLinus Torvalds } 31531da177e4SLinus Torvalds 31541da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 31551da177e4SLinus Torvalds { 31568687b63aSAl Viro uint32_t bmlen; 31578687b63aSAl Viro __be32 *p; 31581da177e4SLinus Torvalds 3159c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3160c0eae66eSBenny Halevy if (unlikely(!p)) 3161c0eae66eSBenny Halevy goto out_overflow; 3162cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 31631da177e4SLinus Torvalds 3164dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3165c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3166c0eae66eSBenny Halevy if (unlikely(!p)) 3167c0eae66eSBenny Halevy goto out_overflow; 31681da177e4SLinus Torvalds if (bmlen > 0) { 31696f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3170dae100c2SFred Isaman if (bmlen > 1) { 3171dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3172dae100c2SFred Isaman if (bmlen > 2) 3173dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3174dae100c2SFred Isaman } 31751da177e4SLinus Torvalds } 31761da177e4SLinus Torvalds return 0; 3177c0eae66eSBenny Halevy out_overflow: 3178c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3179c0eae66eSBenny Halevy return -EIO; 31801da177e4SLinus Torvalds } 31811da177e4SLinus Torvalds 3182256e48bbSTrond Myklebust static int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, unsigned int *savep) 31831da177e4SLinus Torvalds { 31848687b63aSAl Viro __be32 *p; 31851da177e4SLinus Torvalds 3186c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3187c0eae66eSBenny Halevy if (unlikely(!p)) 3188c0eae66eSBenny Halevy goto out_overflow; 3189cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 3190256e48bbSTrond Myklebust *savep = xdr_stream_pos(xdr); 31911da177e4SLinus Torvalds return 0; 3192c0eae66eSBenny Halevy out_overflow: 3193c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3194c0eae66eSBenny Halevy return -EIO; 31951da177e4SLinus Torvalds } 31961da177e4SLinus Torvalds 31971da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31981da177e4SLinus Torvalds { 31991da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 32003388bff5SRoman Borisov int ret; 32013388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 32023388bff5SRoman Borisov if (unlikely(ret < 0)) 32033388bff5SRoman Borisov return ret; 32041da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 32051da177e4SLinus Torvalds } else 3206dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3207dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3208dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 32091da177e4SLinus Torvalds return 0; 32101da177e4SLinus Torvalds } 32111da177e4SLinus Torvalds 32121da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 32131da177e4SLinus Torvalds { 32148687b63aSAl Viro __be32 *p; 3215409924e4STrond Myklebust int ret = 0; 32161da177e4SLinus Torvalds 32171da177e4SLinus Torvalds *type = 0; 32181da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 32191da177e4SLinus Torvalds return -EIO; 32201da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3221c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3222c0eae66eSBenny Halevy if (unlikely(!p)) 3223c0eae66eSBenny Halevy goto out_overflow; 3224cccddf4fSBenny Halevy *type = be32_to_cpup(p); 32251da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 32263110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 32271da177e4SLinus Torvalds return -EIO; 32281da177e4SLinus Torvalds } 32291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3230409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 32311da177e4SLinus Torvalds } 3232bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3233409924e4STrond Myklebust return ret; 3234c0eae66eSBenny Halevy out_overflow: 3235c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3236c0eae66eSBenny Halevy return -EIO; 32371da177e4SLinus Torvalds } 32381da177e4SLinus Torvalds 3239264e6351SChuck Lever static int decode_attr_fh_expire_type(struct xdr_stream *xdr, 3240264e6351SChuck Lever uint32_t *bitmap, uint32_t *type) 3241264e6351SChuck Lever { 3242264e6351SChuck Lever __be32 *p; 3243264e6351SChuck Lever 3244264e6351SChuck Lever *type = 0; 3245264e6351SChuck Lever if (unlikely(bitmap[0] & (FATTR4_WORD0_FH_EXPIRE_TYPE - 1U))) 3246264e6351SChuck Lever return -EIO; 3247264e6351SChuck Lever if (likely(bitmap[0] & FATTR4_WORD0_FH_EXPIRE_TYPE)) { 3248264e6351SChuck Lever p = xdr_inline_decode(xdr, 4); 3249264e6351SChuck Lever if (unlikely(!p)) 3250264e6351SChuck Lever goto out_overflow; 3251264e6351SChuck Lever *type = be32_to_cpup(p); 3252264e6351SChuck Lever bitmap[0] &= ~FATTR4_WORD0_FH_EXPIRE_TYPE; 3253264e6351SChuck Lever } 3254264e6351SChuck Lever dprintk("%s: expire type=0x%x\n", __func__, *type); 3255264e6351SChuck Lever return 0; 3256264e6351SChuck Lever out_overflow: 3257264e6351SChuck Lever print_overflow_msg(__func__, xdr); 3258264e6351SChuck Lever return -EIO; 3259264e6351SChuck Lever } 3260264e6351SChuck Lever 32611da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 32621da177e4SLinus Torvalds { 32638687b63aSAl Viro __be32 *p; 3264409924e4STrond Myklebust int ret = 0; 32651da177e4SLinus Torvalds 32661da177e4SLinus Torvalds *change = 0; 32671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 32681da177e4SLinus Torvalds return -EIO; 32691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3270c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3271c0eae66eSBenny Halevy if (unlikely(!p)) 3272c0eae66eSBenny Halevy goto out_overflow; 3273cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 32741da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3275409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 32761da177e4SLinus Torvalds } 32773110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 32781da177e4SLinus Torvalds (unsigned long long)*change); 3279409924e4STrond Myklebust return ret; 3280c0eae66eSBenny Halevy out_overflow: 3281c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3282c0eae66eSBenny Halevy return -EIO; 32831da177e4SLinus Torvalds } 32841da177e4SLinus Torvalds 32851da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 32861da177e4SLinus Torvalds { 32878687b63aSAl Viro __be32 *p; 3288409924e4STrond Myklebust int ret = 0; 32891da177e4SLinus Torvalds 32901da177e4SLinus Torvalds *size = 0; 32911da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 32921da177e4SLinus Torvalds return -EIO; 32931da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3294c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3295c0eae66eSBenny Halevy if (unlikely(!p)) 3296c0eae66eSBenny Halevy goto out_overflow; 3297cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32981da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3299409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 33001da177e4SLinus Torvalds } 33013110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3302409924e4STrond Myklebust return ret; 3303c0eae66eSBenny Halevy out_overflow: 3304c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3305c0eae66eSBenny Halevy return -EIO; 33061da177e4SLinus Torvalds } 33071da177e4SLinus Torvalds 33081da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33091da177e4SLinus Torvalds { 33108687b63aSAl Viro __be32 *p; 33111da177e4SLinus Torvalds 33121da177e4SLinus Torvalds *res = 0; 33131da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 33141da177e4SLinus Torvalds return -EIO; 33151da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3316c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3317c0eae66eSBenny Halevy if (unlikely(!p)) 3318c0eae66eSBenny Halevy goto out_overflow; 3319cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33201da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 33211da177e4SLinus Torvalds } 33223110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 33231da177e4SLinus Torvalds return 0; 3324c0eae66eSBenny Halevy out_overflow: 3325c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3326c0eae66eSBenny Halevy return -EIO; 33271da177e4SLinus Torvalds } 33281da177e4SLinus Torvalds 33291da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33301da177e4SLinus Torvalds { 33318687b63aSAl Viro __be32 *p; 33321da177e4SLinus Torvalds 33331da177e4SLinus Torvalds *res = 0; 33341da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 33351da177e4SLinus Torvalds return -EIO; 33361da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3337c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3338c0eae66eSBenny Halevy if (unlikely(!p)) 3339c0eae66eSBenny Halevy goto out_overflow; 3340cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33411da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 33421da177e4SLinus Torvalds } 33433110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 33441da177e4SLinus Torvalds return 0; 3345c0eae66eSBenny Halevy out_overflow: 3346c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3347c0eae66eSBenny Halevy return -EIO; 33481da177e4SLinus Torvalds } 33491da177e4SLinus Torvalds 33508b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 33511da177e4SLinus Torvalds { 33528687b63aSAl Viro __be32 *p; 3353409924e4STrond Myklebust int ret = 0; 33541da177e4SLinus Torvalds 33551da177e4SLinus Torvalds fsid->major = 0; 33561da177e4SLinus Torvalds fsid->minor = 0; 33571da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 33581da177e4SLinus Torvalds return -EIO; 33591da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3360c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3361c0eae66eSBenny Halevy if (unlikely(!p)) 3362c0eae66eSBenny Halevy goto out_overflow; 33633ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3364cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 33651da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3366409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 33671da177e4SLinus Torvalds } 33683110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 33691da177e4SLinus Torvalds (unsigned long long)fsid->major, 33701da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3371409924e4STrond Myklebust return ret; 3372c0eae66eSBenny Halevy out_overflow: 3373c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3374c0eae66eSBenny Halevy return -EIO; 33751da177e4SLinus Torvalds } 33761da177e4SLinus Torvalds 33771da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33781da177e4SLinus Torvalds { 33798687b63aSAl Viro __be32 *p; 33801da177e4SLinus Torvalds 33811da177e4SLinus Torvalds *res = 60; 33821da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 33831da177e4SLinus Torvalds return -EIO; 33841da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3385c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3386c0eae66eSBenny Halevy if (unlikely(!p)) 3387c0eae66eSBenny Halevy goto out_overflow; 3388cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 33901da177e4SLinus Torvalds } 33913110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 33921da177e4SLinus Torvalds return 0; 3393c0eae66eSBenny Halevy out_overflow: 3394c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3395c0eae66eSBenny Halevy return -EIO; 33961da177e4SLinus Torvalds } 33971da177e4SLinus Torvalds 3398ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3399ae42c70aSBryan Schumaker { 3400ae42c70aSBryan Schumaker __be32 *p; 3401ae42c70aSBryan Schumaker 3402ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3403ae42c70aSBryan Schumaker return -EIO; 3404ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3405ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3406ae42c70aSBryan Schumaker if (unlikely(!p)) 3407ae42c70aSBryan Schumaker goto out_overflow; 3408ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3409ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3410ae42c70aSBryan Schumaker } 3411ae42c70aSBryan Schumaker return 0; 3412ae42c70aSBryan Schumaker out_overflow: 3413ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3414ae42c70aSBryan Schumaker return -EIO; 3415ae42c70aSBryan Schumaker } 3416ae42c70aSBryan Schumaker 3417ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3418ae42c70aSBryan Schumaker { 3419ae42c70aSBryan Schumaker __be32 *p; 3420ae42c70aSBryan Schumaker int len; 3421ae42c70aSBryan Schumaker 34227ad07353STrond Myklebust if (fh != NULL) 3423ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3424ae42c70aSBryan Schumaker 3425ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3426ae42c70aSBryan Schumaker return -EIO; 3427ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3428ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3429ae42c70aSBryan Schumaker if (unlikely(!p)) 3430ae42c70aSBryan Schumaker goto out_overflow; 3431ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3432ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3433ae42c70aSBryan Schumaker return -EIO; 3434ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3435ae42c70aSBryan Schumaker if (unlikely(!p)) 3436ae42c70aSBryan Schumaker goto out_overflow; 34377ad07353STrond Myklebust if (fh != NULL) { 3438ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 34397ad07353STrond Myklebust fh->size = len; 34407ad07353STrond Myklebust } 3441ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3442ae42c70aSBryan Schumaker } 3443ae42c70aSBryan Schumaker return 0; 3444ae42c70aSBryan Schumaker out_overflow: 3445ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3446ae42c70aSBryan Schumaker return -EIO; 3447ae42c70aSBryan Schumaker } 3448ae42c70aSBryan Schumaker 34491da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34501da177e4SLinus Torvalds { 34518687b63aSAl Viro __be32 *p; 34521da177e4SLinus Torvalds 3453a1800acaSMalahal Naineni *res = 0; 34541da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 34551da177e4SLinus Torvalds return -EIO; 34561da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3457c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3458c0eae66eSBenny Halevy if (unlikely(!p)) 3459c0eae66eSBenny Halevy goto out_overflow; 3460cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34611da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 34621da177e4SLinus Torvalds } 34633110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 34641da177e4SLinus Torvalds return 0; 3465c0eae66eSBenny Halevy out_overflow: 3466c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3467c0eae66eSBenny Halevy return -EIO; 34681da177e4SLinus Torvalds } 34691da177e4SLinus Torvalds 34701da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 34711da177e4SLinus Torvalds { 34728687b63aSAl Viro __be32 *p; 3473409924e4STrond Myklebust int ret = 0; 34741da177e4SLinus Torvalds 34751da177e4SLinus Torvalds *fileid = 0; 34761da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 34771da177e4SLinus Torvalds return -EIO; 34781da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3479c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3480c0eae66eSBenny Halevy if (unlikely(!p)) 3481c0eae66eSBenny Halevy goto out_overflow; 3482cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 34831da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3484409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 34851da177e4SLinus Torvalds } 34863110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3487409924e4STrond Myklebust return ret; 3488c0eae66eSBenny Halevy out_overflow: 3489c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3490c0eae66eSBenny Halevy return -EIO; 34911da177e4SLinus Torvalds } 34921da177e4SLinus Torvalds 349399baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 349499baf625SManoj Naik { 34958687b63aSAl Viro __be32 *p; 3496409924e4STrond Myklebust int ret = 0; 349799baf625SManoj Naik 349899baf625SManoj Naik *fileid = 0; 349999baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 350099baf625SManoj Naik return -EIO; 350199baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3502c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3503c0eae66eSBenny Halevy if (unlikely(!p)) 3504c0eae66eSBenny Halevy goto out_overflow; 3505cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 350699baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 350728331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 350899baf625SManoj Naik } 35093110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3510409924e4STrond Myklebust return ret; 3511c0eae66eSBenny Halevy out_overflow: 3512c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3513c0eae66eSBenny Halevy return -EIO; 351499baf625SManoj Naik } 351599baf625SManoj Naik 35161da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35171da177e4SLinus Torvalds { 35188687b63aSAl Viro __be32 *p; 35191da177e4SLinus Torvalds int status = 0; 35201da177e4SLinus Torvalds 35211da177e4SLinus Torvalds *res = 0; 35221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 35231da177e4SLinus Torvalds return -EIO; 35241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3525c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3526c0eae66eSBenny Halevy if (unlikely(!p)) 3527c0eae66eSBenny Halevy goto out_overflow; 3528cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 35301da177e4SLinus Torvalds } 35313110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 35321da177e4SLinus Torvalds return status; 3533c0eae66eSBenny Halevy out_overflow: 3534c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3535c0eae66eSBenny Halevy return -EIO; 35361da177e4SLinus Torvalds } 35371da177e4SLinus Torvalds 35381da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35391da177e4SLinus Torvalds { 35408687b63aSAl Viro __be32 *p; 35411da177e4SLinus Torvalds int status = 0; 35421da177e4SLinus Torvalds 35431da177e4SLinus Torvalds *res = 0; 35441da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 35451da177e4SLinus Torvalds return -EIO; 35461da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3547c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3548c0eae66eSBenny Halevy if (unlikely(!p)) 3549c0eae66eSBenny Halevy goto out_overflow; 3550cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35511da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 35521da177e4SLinus Torvalds } 35533110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 35541da177e4SLinus Torvalds return status; 3555c0eae66eSBenny Halevy out_overflow: 3556c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3557c0eae66eSBenny Halevy return -EIO; 35581da177e4SLinus Torvalds } 35591da177e4SLinus Torvalds 35601da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35611da177e4SLinus Torvalds { 35628687b63aSAl Viro __be32 *p; 35631da177e4SLinus Torvalds int status = 0; 35641da177e4SLinus Torvalds 35651da177e4SLinus Torvalds *res = 0; 35661da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 35671da177e4SLinus Torvalds return -EIO; 35681da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3569c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3570c0eae66eSBenny Halevy if (unlikely(!p)) 3571c0eae66eSBenny Halevy goto out_overflow; 3572cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35731da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 35741da177e4SLinus Torvalds } 35753110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 35761da177e4SLinus Torvalds return status; 3577c0eae66eSBenny Halevy out_overflow: 3578c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3579c0eae66eSBenny Halevy return -EIO; 35801da177e4SLinus Torvalds } 35811da177e4SLinus Torvalds 35827aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 35837aaa0b3bSManoj Naik { 3584464ad6b1SChuck Lever u32 n; 35858687b63aSAl Viro __be32 *p; 35867aaa0b3bSManoj Naik int status = 0; 35877aaa0b3bSManoj Naik 3588c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3589c0eae66eSBenny Halevy if (unlikely(!p)) 3590c0eae66eSBenny Halevy goto out_overflow; 3591cccddf4fSBenny Halevy n = be32_to_cpup(p); 359233a43f28SAndy Adamson if (n == 0) 359333a43f28SAndy Adamson goto root_path; 359402a2976cSChuck Lever dprintk("pathname4: "); 3595809b426cSTrond Myklebust if (n > NFS4_PATHNAME_MAXCOMPONENTS) { 3596809b426cSTrond Myklebust dprintk("cannot parse %d components in path\n", n); 3597809b426cSTrond Myklebust goto out_eio; 3598809b426cSTrond Myklebust } 3599809b426cSTrond Myklebust for (path->ncomponents = 0; path->ncomponents < n; path->ncomponents++) { 36007aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 36017aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 36027aaa0b3bSManoj Naik if (unlikely(status != 0)) 36037aaa0b3bSManoj Naik goto out_eio; 360495a13f7bSTrond Myklebust ifdebug (XDR) 360502a2976cSChuck Lever pr_cont("%s%.*s ", 360602a2976cSChuck Lever (path->ncomponents != n ? "/ " : ""), 360702a2976cSChuck Lever component->len, component->data); 36087aaa0b3bSManoj Naik } 36097aaa0b3bSManoj Naik out: 36107aaa0b3bSManoj Naik return status; 361133a43f28SAndy Adamson root_path: 361233a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 361333a43f28SAndy Adamson path->ncomponents = 1; 361433a43f28SAndy Adamson path->components[0].len=0; 361533a43f28SAndy Adamson path->components[0].data=NULL; 361602a2976cSChuck Lever dprintk("pathname4: /\n"); 361733a43f28SAndy Adamson goto out; 36187aaa0b3bSManoj Naik out_eio: 36197aaa0b3bSManoj Naik dprintk(" status %d", status); 36207aaa0b3bSManoj Naik status = -EIO; 36217aaa0b3bSManoj Naik goto out; 3622c0eae66eSBenny Halevy out_overflow: 3623c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3624c0eae66eSBenny Halevy return -EIO; 36257aaa0b3bSManoj Naik } 36267aaa0b3bSManoj Naik 36277aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3628683b57b4STrond Myklebust { 3629683b57b4STrond Myklebust int n; 36308687b63aSAl Viro __be32 *p; 3631683b57b4STrond Myklebust int status = -EIO; 3632683b57b4STrond Myklebust 3633683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3634683b57b4STrond Myklebust goto out; 3635683b57b4STrond Myklebust status = 0; 3636683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3637683b57b4STrond Myklebust goto out; 36388b7e3f49STrond Myklebust status = -EIO; 36398b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 36408b7e3f49STrond Myklebust if (unlikely(res == NULL)) 36418b7e3f49STrond Myklebust goto out; 364202a2976cSChuck Lever dprintk("%s: fsroot:\n", __func__); 36437aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3644683b57b4STrond Myklebust if (unlikely(status != 0)) 3645683b57b4STrond Myklebust goto out; 3646c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3647c0eae66eSBenny Halevy if (unlikely(!p)) 3648c0eae66eSBenny Halevy goto out_overflow; 3649cccddf4fSBenny Halevy n = be32_to_cpup(p); 3650683b57b4STrond Myklebust if (n <= 0) 3651683b57b4STrond Myklebust goto out_eio; 3652809b426cSTrond Myklebust for (res->nlocations = 0; res->nlocations < n; res->nlocations++) { 3653464ad6b1SChuck Lever u32 m; 3654809b426cSTrond Myklebust struct nfs4_fs_location *loc; 3655683b57b4STrond Myklebust 3656809b426cSTrond Myklebust if (res->nlocations == NFS4_FS_LOCATIONS_MAXENTRIES) 3657809b426cSTrond Myklebust break; 3658809b426cSTrond Myklebust loc = &res->locations[res->nlocations]; 3659c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3660c0eae66eSBenny Halevy if (unlikely(!p)) 3661c0eae66eSBenny Halevy goto out_overflow; 3662cccddf4fSBenny Halevy m = be32_to_cpup(p); 36637aaa0b3bSManoj Naik 366402a2976cSChuck Lever dprintk("%s: servers:\n", __func__); 3665809b426cSTrond Myklebust for (loc->nservers = 0; loc->nservers < m; loc->nservers++) { 3666809b426cSTrond Myklebust struct nfs4_string *server; 3667809b426cSTrond Myklebust 3668809b426cSTrond Myklebust if (loc->nservers == NFS4_FS_LOCATION_MAXSERVERS) { 3669464ad6b1SChuck Lever unsigned int i; 3670464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3671464ad6b1SChuck Lever "returned for location %u\n", 36723110ff80SHarvey Harrison __func__, 3673464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3674464ad6b1SChuck Lever m, res->nlocations); 36757aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 36762e42c3e2STrond Myklebust unsigned int len; 36777aaa0b3bSManoj Naik char *data; 36787aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3679683b57b4STrond Myklebust if (unlikely(status != 0)) 3680683b57b4STrond Myklebust goto out_eio; 36817aaa0b3bSManoj Naik } 3682809b426cSTrond Myklebust break; 36837aaa0b3bSManoj Naik } 3684809b426cSTrond Myklebust server = &loc->servers[loc->nservers]; 3685809b426cSTrond Myklebust status = decode_opaque_inline(xdr, &server->len, &server->data); 3686809b426cSTrond Myklebust if (unlikely(status != 0)) 3687809b426cSTrond Myklebust goto out_eio; 3688809b426cSTrond Myklebust dprintk("%s ", server->data); 36897aaa0b3bSManoj Naik } 36907aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 36917aaa0b3bSManoj Naik if (unlikely(status != 0)) 36927aaa0b3bSManoj Naik goto out_eio; 3693683b57b4STrond Myklebust } 3694409924e4STrond Myklebust if (res->nlocations != 0) 369581934ddbSChuck Lever status = NFS_ATTR_FATTR_V4_LOCATIONS; 3696683b57b4STrond Myklebust out: 36973110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3698683b57b4STrond Myklebust return status; 3699c0eae66eSBenny Halevy out_overflow: 3700c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3701683b57b4STrond Myklebust out_eio: 3702683b57b4STrond Myklebust status = -EIO; 3703683b57b4STrond Myklebust goto out; 3704683b57b4STrond Myklebust } 3705683b57b4STrond Myklebust 37061da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 37071da177e4SLinus Torvalds { 37088687b63aSAl Viro __be32 *p; 37091da177e4SLinus Torvalds int status = 0; 37101da177e4SLinus Torvalds 37111da177e4SLinus Torvalds *res = 0; 37121da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 37131da177e4SLinus Torvalds return -EIO; 37141da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3715c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3716c0eae66eSBenny Halevy if (unlikely(!p)) 3717c0eae66eSBenny Halevy goto out_overflow; 3718cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 37191da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 37201da177e4SLinus Torvalds } 37213110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 37221da177e4SLinus Torvalds return status; 3723c0eae66eSBenny Halevy out_overflow: 3724c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3725c0eae66eSBenny Halevy return -EIO; 37261da177e4SLinus Torvalds } 37271da177e4SLinus Torvalds 37281da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 37291da177e4SLinus Torvalds { 37308687b63aSAl Viro __be32 *p; 37311da177e4SLinus Torvalds int status = 0; 37321da177e4SLinus Torvalds 37331da177e4SLinus Torvalds *maxlink = 1; 37341da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 37351da177e4SLinus Torvalds return -EIO; 37361da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3737c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3738c0eae66eSBenny Halevy if (unlikely(!p)) 3739c0eae66eSBenny Halevy goto out_overflow; 3740cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 37411da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 37421da177e4SLinus Torvalds } 37433110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 37441da177e4SLinus Torvalds return status; 3745c0eae66eSBenny Halevy out_overflow: 3746c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3747c0eae66eSBenny Halevy return -EIO; 37481da177e4SLinus Torvalds } 37491da177e4SLinus Torvalds 37501da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 37511da177e4SLinus Torvalds { 37528687b63aSAl Viro __be32 *p; 37531da177e4SLinus Torvalds int status = 0; 37541da177e4SLinus Torvalds 37551da177e4SLinus Torvalds *maxname = 1024; 37561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 37571da177e4SLinus Torvalds return -EIO; 37581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3759c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3760c0eae66eSBenny Halevy if (unlikely(!p)) 3761c0eae66eSBenny Halevy goto out_overflow; 3762cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 37631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 37641da177e4SLinus Torvalds } 37653110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 37661da177e4SLinus Torvalds return status; 3767c0eae66eSBenny Halevy out_overflow: 3768c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3769c0eae66eSBenny Halevy return -EIO; 37701da177e4SLinus Torvalds } 37711da177e4SLinus Torvalds 37721da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37731da177e4SLinus Torvalds { 37748687b63aSAl Viro __be32 *p; 37751da177e4SLinus Torvalds int status = 0; 37761da177e4SLinus Torvalds 37771da177e4SLinus Torvalds *res = 1024; 37781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 37791da177e4SLinus Torvalds return -EIO; 37801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 37811da177e4SLinus Torvalds uint64_t maxread; 3782c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3783c0eae66eSBenny Halevy if (unlikely(!p)) 3784c0eae66eSBenny Halevy goto out_overflow; 3785cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 37861da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 37871da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 37881da177e4SLinus Torvalds *res = (uint32_t)maxread; 37891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37901da177e4SLinus Torvalds } 37913110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37921da177e4SLinus Torvalds return status; 3793c0eae66eSBenny Halevy out_overflow: 3794c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3795c0eae66eSBenny Halevy return -EIO; 37961da177e4SLinus Torvalds } 37971da177e4SLinus Torvalds 37981da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37991da177e4SLinus Torvalds { 38008687b63aSAl Viro __be32 *p; 38011da177e4SLinus Torvalds int status = 0; 38021da177e4SLinus Torvalds 38031da177e4SLinus Torvalds *res = 1024; 38041da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 38051da177e4SLinus Torvalds return -EIO; 38061da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 38071da177e4SLinus Torvalds uint64_t maxwrite; 3808c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3809c0eae66eSBenny Halevy if (unlikely(!p)) 3810c0eae66eSBenny Halevy goto out_overflow; 3811cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 38121da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 38131da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 38141da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 38151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 38161da177e4SLinus Torvalds } 38173110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 38181da177e4SLinus Torvalds return status; 3819c0eae66eSBenny Halevy out_overflow: 3820c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3821c0eae66eSBenny Halevy return -EIO; 38221da177e4SLinus Torvalds } 38231da177e4SLinus Torvalds 3824bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 38251da177e4SLinus Torvalds { 3826bca79478STrond Myklebust uint32_t tmp; 38278687b63aSAl Viro __be32 *p; 3828409924e4STrond Myklebust int ret = 0; 38291da177e4SLinus Torvalds 38301da177e4SLinus Torvalds *mode = 0; 38311da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 38321da177e4SLinus Torvalds return -EIO; 38331da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3834c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3835c0eae66eSBenny Halevy if (unlikely(!p)) 3836c0eae66eSBenny Halevy goto out_overflow; 3837cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3838bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 38391da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3840409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 38411da177e4SLinus Torvalds } 38423110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3843409924e4STrond Myklebust return ret; 3844c0eae66eSBenny Halevy out_overflow: 3845c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3846c0eae66eSBenny Halevy return -EIO; 38471da177e4SLinus Torvalds } 38481da177e4SLinus Torvalds 38491da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 38501da177e4SLinus Torvalds { 38518687b63aSAl Viro __be32 *p; 3852409924e4STrond Myklebust int ret = 0; 38531da177e4SLinus Torvalds 38541da177e4SLinus Torvalds *nlink = 1; 38551da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 38561da177e4SLinus Torvalds return -EIO; 38571da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3858c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3859c0eae66eSBenny Halevy if (unlikely(!p)) 3860c0eae66eSBenny Halevy goto out_overflow; 3861cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 38621da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3863409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 38641da177e4SLinus Torvalds } 38653110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3866409924e4STrond Myklebust return ret; 3867c0eae66eSBenny Halevy out_overflow: 3868c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3869c0eae66eSBenny Halevy return -EIO; 38701da177e4SLinus Torvalds } 38711da177e4SLinus Torvalds 387280e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3873e5782076SEric W. Biederman const struct nfs_server *server, kuid_t *uid, 38746926afd1STrond Myklebust struct nfs4_string *owner_name) 38751da177e4SLinus Torvalds { 38768687b63aSAl Viro uint32_t len; 38778687b63aSAl Viro __be32 *p; 3878409924e4STrond Myklebust int ret = 0; 38791da177e4SLinus Torvalds 3880e5782076SEric W. Biederman *uid = make_kuid(&init_user_ns, -2); 38811da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 38821da177e4SLinus Torvalds return -EIO; 38831da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3884c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3885c0eae66eSBenny Halevy if (unlikely(!p)) 3886c0eae66eSBenny Halevy goto out_overflow; 3887cccddf4fSBenny Halevy len = be32_to_cpup(p); 3888c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3889c0eae66eSBenny Halevy if (unlikely(!p)) 3890c0eae66eSBenny Halevy goto out_overflow; 38916926afd1STrond Myklebust if (owner_name != NULL) { 38926926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38936926afd1STrond Myklebust if (owner_name->data != NULL) { 38946926afd1STrond Myklebust owner_name->len = len; 38956926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38966926afd1STrond Myklebust } 389780e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3898e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3899409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3900409924e4STrond Myklebust else 39011da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 39023110ff80SHarvey Harrison __func__); 39031da177e4SLinus Torvalds } else 3904fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 39053110ff80SHarvey Harrison __func__, len); 39061da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 39071da177e4SLinus Torvalds } 3908e5782076SEric W. Biederman dprintk("%s: uid=%d\n", __func__, (int)from_kuid(&init_user_ns, *uid)); 3909409924e4STrond Myklebust return ret; 3910c0eae66eSBenny Halevy out_overflow: 3911c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3912c0eae66eSBenny Halevy return -EIO; 39131da177e4SLinus Torvalds } 39141da177e4SLinus Torvalds 391580e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3916e5782076SEric W. Biederman const struct nfs_server *server, kgid_t *gid, 39176926afd1STrond Myklebust struct nfs4_string *group_name) 39181da177e4SLinus Torvalds { 39198687b63aSAl Viro uint32_t len; 39208687b63aSAl Viro __be32 *p; 3921409924e4STrond Myklebust int ret = 0; 39221da177e4SLinus Torvalds 3923e5782076SEric W. Biederman *gid = make_kgid(&init_user_ns, -2); 39241da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 39251da177e4SLinus Torvalds return -EIO; 39261da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3927c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3928c0eae66eSBenny Halevy if (unlikely(!p)) 3929c0eae66eSBenny Halevy goto out_overflow; 3930cccddf4fSBenny Halevy len = be32_to_cpup(p); 3931c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3932c0eae66eSBenny Halevy if (unlikely(!p)) 3933c0eae66eSBenny Halevy goto out_overflow; 39346926afd1STrond Myklebust if (group_name != NULL) { 39356926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 39366926afd1STrond Myklebust if (group_name->data != NULL) { 39376926afd1STrond Myklebust group_name->len = len; 39386926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 39396926afd1STrond Myklebust } 394080e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3941e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3942409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3943409924e4STrond Myklebust else 39441da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 39453110ff80SHarvey Harrison __func__); 39461da177e4SLinus Torvalds } else 3947fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 39483110ff80SHarvey Harrison __func__, len); 39491da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 39501da177e4SLinus Torvalds } 3951e5782076SEric W. Biederman dprintk("%s: gid=%d\n", __func__, (int)from_kgid(&init_user_ns, *gid)); 3952409924e4STrond Myklebust return ret; 3953c0eae66eSBenny Halevy out_overflow: 3954c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3955c0eae66eSBenny Halevy return -EIO; 39561da177e4SLinus Torvalds } 39571da177e4SLinus Torvalds 39581da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 39591da177e4SLinus Torvalds { 39608687b63aSAl Viro uint32_t major = 0, minor = 0; 39618687b63aSAl Viro __be32 *p; 3962409924e4STrond Myklebust int ret = 0; 39631da177e4SLinus Torvalds 39641da177e4SLinus Torvalds *rdev = MKDEV(0,0); 39651da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 39661da177e4SLinus Torvalds return -EIO; 39671da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 39681da177e4SLinus Torvalds dev_t tmp; 39691da177e4SLinus Torvalds 3970c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3971c0eae66eSBenny Halevy if (unlikely(!p)) 3972c0eae66eSBenny Halevy goto out_overflow; 39736f723f77SBenny Halevy major = be32_to_cpup(p++); 3974cccddf4fSBenny Halevy minor = be32_to_cpup(p); 39751da177e4SLinus Torvalds tmp = MKDEV(major, minor); 39761da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 39771da177e4SLinus Torvalds *rdev = tmp; 39781da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3979409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39801da177e4SLinus Torvalds } 39813110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3982409924e4STrond Myklebust return ret; 3983c0eae66eSBenny Halevy out_overflow: 3984c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3985c0eae66eSBenny Halevy return -EIO; 39861da177e4SLinus Torvalds } 39871da177e4SLinus Torvalds 39881da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39891da177e4SLinus Torvalds { 39908687b63aSAl Viro __be32 *p; 39911da177e4SLinus Torvalds int status = 0; 39921da177e4SLinus Torvalds 39931da177e4SLinus Torvalds *res = 0; 39941da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39951da177e4SLinus Torvalds return -EIO; 39961da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3997c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3998c0eae66eSBenny Halevy if (unlikely(!p)) 3999c0eae66eSBenny Halevy goto out_overflow; 4000cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40011da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 40021da177e4SLinus Torvalds } 40033110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 40041da177e4SLinus Torvalds return status; 4005c0eae66eSBenny Halevy out_overflow: 4006c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4007c0eae66eSBenny Halevy return -EIO; 40081da177e4SLinus Torvalds } 40091da177e4SLinus Torvalds 40101da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40111da177e4SLinus Torvalds { 40128687b63aSAl Viro __be32 *p; 40131da177e4SLinus Torvalds int status = 0; 40141da177e4SLinus Torvalds 40151da177e4SLinus Torvalds *res = 0; 40161da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 40171da177e4SLinus Torvalds return -EIO; 40181da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 4019c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4020c0eae66eSBenny Halevy if (unlikely(!p)) 4021c0eae66eSBenny Halevy goto out_overflow; 4022cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40231da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 40241da177e4SLinus Torvalds } 40253110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 40261da177e4SLinus Torvalds return status; 4027c0eae66eSBenny Halevy out_overflow: 4028c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4029c0eae66eSBenny Halevy return -EIO; 40301da177e4SLinus Torvalds } 40311da177e4SLinus Torvalds 40321da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 40331da177e4SLinus Torvalds { 40348687b63aSAl Viro __be32 *p; 40351da177e4SLinus Torvalds int status = 0; 40361da177e4SLinus Torvalds 40371da177e4SLinus Torvalds *res = 0; 40381da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 40391da177e4SLinus Torvalds return -EIO; 40401da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4041c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4042c0eae66eSBenny Halevy if (unlikely(!p)) 4043c0eae66eSBenny Halevy goto out_overflow; 4044cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40451da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 40461da177e4SLinus Torvalds } 40473110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 40481da177e4SLinus Torvalds return status; 4049c0eae66eSBenny Halevy out_overflow: 4050c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4051c0eae66eSBenny Halevy return -EIO; 40521da177e4SLinus Torvalds } 40531da177e4SLinus Torvalds 40541da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 40551da177e4SLinus Torvalds { 40568687b63aSAl Viro __be32 *p; 4057409924e4STrond Myklebust int ret = 0; 40581da177e4SLinus Torvalds 40591da177e4SLinus Torvalds *used = 0; 40601da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 40611da177e4SLinus Torvalds return -EIO; 40621da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4063c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4064c0eae66eSBenny Halevy if (unlikely(!p)) 4065c0eae66eSBenny Halevy goto out_overflow; 4066cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 40671da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4068409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 40691da177e4SLinus Torvalds } 40703110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 40711da177e4SLinus Torvalds (unsigned long long)*used); 4072409924e4STrond Myklebust return ret; 4073c0eae66eSBenny Halevy out_overflow: 4074c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4075c0eae66eSBenny Halevy return -EIO; 40761da177e4SLinus Torvalds } 40771da177e4SLinus Torvalds 40781da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40791da177e4SLinus Torvalds { 40808687b63aSAl Viro __be32 *p; 40811da177e4SLinus Torvalds uint64_t sec; 40821da177e4SLinus Torvalds uint32_t nsec; 40831da177e4SLinus Torvalds 4084c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4085c0eae66eSBenny Halevy if (unlikely(!p)) 4086c0eae66eSBenny Halevy goto out_overflow; 40873ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 4088cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 40891da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40901da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40911da177e4SLinus Torvalds return 0; 4092c0eae66eSBenny Halevy out_overflow: 4093c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4094c0eae66eSBenny Halevy return -EIO; 40951da177e4SLinus Torvalds } 40961da177e4SLinus Torvalds 40971da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40981da177e4SLinus Torvalds { 40991da177e4SLinus Torvalds int status = 0; 41001da177e4SLinus Torvalds 41011da177e4SLinus Torvalds time->tv_sec = 0; 41021da177e4SLinus Torvalds time->tv_nsec = 0; 41031da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 41041da177e4SLinus Torvalds return -EIO; 41051da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 41061da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4107409924e4STrond Myklebust if (status == 0) 4108409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 41091da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 41101da177e4SLinus Torvalds } 41113110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 41121da177e4SLinus Torvalds return status; 41131da177e4SLinus Torvalds } 41141da177e4SLinus Torvalds 41151da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41161da177e4SLinus Torvalds { 41171da177e4SLinus Torvalds int status = 0; 41181da177e4SLinus Torvalds 41191da177e4SLinus Torvalds time->tv_sec = 0; 41201da177e4SLinus Torvalds time->tv_nsec = 0; 41211da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 41221da177e4SLinus Torvalds return -EIO; 41231da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 41241da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4125409924e4STrond Myklebust if (status == 0) 4126409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 41271da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 41281da177e4SLinus Torvalds } 41293110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 41301da177e4SLinus Torvalds return status; 41311da177e4SLinus Torvalds } 41321da177e4SLinus Torvalds 413355b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 413455b6e774SRicardo Labiaga struct timespec *time) 413555b6e774SRicardo Labiaga { 413655b6e774SRicardo Labiaga int status = 0; 413755b6e774SRicardo Labiaga 413855b6e774SRicardo Labiaga time->tv_sec = 0; 413955b6e774SRicardo Labiaga time->tv_nsec = 0; 414055b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 414155b6e774SRicardo Labiaga return -EIO; 414255b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 414355b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 414455b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 414555b6e774SRicardo Labiaga } 414655b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 414755b6e774SRicardo Labiaga (long)time->tv_nsec); 414855b6e774SRicardo Labiaga return status; 414955b6e774SRicardo Labiaga } 415055b6e774SRicardo Labiaga 4151aa9c2669SDavid Quigley static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap, 4152aa9c2669SDavid Quigley struct nfs4_label *label) 4153aa9c2669SDavid Quigley { 4154aa9c2669SDavid Quigley uint32_t pi = 0; 4155aa9c2669SDavid Quigley uint32_t lfs = 0; 4156aa9c2669SDavid Quigley __u32 len; 4157aa9c2669SDavid Quigley __be32 *p; 4158aa9c2669SDavid Quigley int status = 0; 4159aa9c2669SDavid Quigley 4160aa9c2669SDavid Quigley if (unlikely(bitmap[2] & (FATTR4_WORD2_SECURITY_LABEL - 1U))) 4161aa9c2669SDavid Quigley return -EIO; 4162aa9c2669SDavid Quigley if (likely(bitmap[2] & FATTR4_WORD2_SECURITY_LABEL)) { 4163aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4164aa9c2669SDavid Quigley if (unlikely(!p)) 4165aa9c2669SDavid Quigley goto out_overflow; 4166aa9c2669SDavid Quigley lfs = be32_to_cpup(p++); 4167aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4168aa9c2669SDavid Quigley if (unlikely(!p)) 4169aa9c2669SDavid Quigley goto out_overflow; 4170aa9c2669SDavid Quigley pi = be32_to_cpup(p++); 4171aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, 4); 4172aa9c2669SDavid Quigley if (unlikely(!p)) 4173aa9c2669SDavid Quigley goto out_overflow; 4174aa9c2669SDavid Quigley len = be32_to_cpup(p++); 4175aa9c2669SDavid Quigley p = xdr_inline_decode(xdr, len); 4176aa9c2669SDavid Quigley if (unlikely(!p)) 4177aa9c2669SDavid Quigley goto out_overflow; 4178aa9c2669SDavid Quigley if (len < NFS4_MAXLABELLEN) { 4179aa9c2669SDavid Quigley if (label) { 4180aa9c2669SDavid Quigley memcpy(label->label, p, len); 4181aa9c2669SDavid Quigley label->len = len; 4182aa9c2669SDavid Quigley label->pi = pi; 4183aa9c2669SDavid Quigley label->lfs = lfs; 4184aa9c2669SDavid Quigley status = NFS_ATTR_FATTR_V4_SECURITY_LABEL; 4185aa9c2669SDavid Quigley } 4186aa9c2669SDavid Quigley bitmap[2] &= ~FATTR4_WORD2_SECURITY_LABEL; 4187aa9c2669SDavid Quigley } else 4188aa9c2669SDavid Quigley printk(KERN_WARNING "%s: label too long (%u)!\n", 4189aa9c2669SDavid Quigley __func__, len); 4190aa9c2669SDavid Quigley } 4191aa9c2669SDavid Quigley if (label && label->label) 4192aa9c2669SDavid Quigley dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__, 4193aa9c2669SDavid Quigley (char *)label->label, label->len, label->pi, label->lfs); 4194aa9c2669SDavid Quigley return status; 4195aa9c2669SDavid Quigley 4196aa9c2669SDavid Quigley out_overflow: 4197aa9c2669SDavid Quigley print_overflow_msg(__func__, xdr); 4198aa9c2669SDavid Quigley return -EIO; 4199aa9c2669SDavid Quigley } 4200aa9c2669SDavid Quigley 42011da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 42021da177e4SLinus Torvalds { 42031da177e4SLinus Torvalds int status = 0; 42041da177e4SLinus Torvalds 42051da177e4SLinus Torvalds time->tv_sec = 0; 42061da177e4SLinus Torvalds time->tv_nsec = 0; 42071da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 42081da177e4SLinus Torvalds return -EIO; 42091da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 42101da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4211409924e4STrond Myklebust if (status == 0) 4212409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 42131da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 42141da177e4SLinus Torvalds } 42153110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 42161da177e4SLinus Torvalds return status; 42171da177e4SLinus Torvalds } 42181da177e4SLinus Torvalds 4219256e48bbSTrond Myklebust static int verify_attr_len(struct xdr_stream *xdr, unsigned int savep, uint32_t attrlen) 42201da177e4SLinus Torvalds { 42211da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 4222256e48bbSTrond Myklebust unsigned int nwords = (xdr_stream_pos(xdr) - savep) >> 2; 42231da177e4SLinus Torvalds 42241da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4225fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4226fe82a183SChuck Lever "%u %c %u\n", 42273110ff80SHarvey Harrison __func__, 42281da177e4SLinus Torvalds attrwords << 2, 42291da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 42301da177e4SLinus Torvalds nwords << 2); 42311da177e4SLinus Torvalds return -EIO; 42321da177e4SLinus Torvalds } 42331da177e4SLinus Torvalds return 0; 42341da177e4SLinus Torvalds } 42351da177e4SLinus Torvalds 42361da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42371da177e4SLinus Torvalds { 42388687b63aSAl Viro __be32 *p; 42391da177e4SLinus Torvalds 4240c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4241c0eae66eSBenny Halevy if (unlikely(!p)) 4242c0eae66eSBenny Halevy goto out_overflow; 42436f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 42443ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4245cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 42461da177e4SLinus Torvalds return 0; 4247c0eae66eSBenny Halevy out_overflow: 4248c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4249c0eae66eSBenny Halevy return -EIO; 42501da177e4SLinus Torvalds } 42511da177e4SLinus Torvalds 42526168f62cSWeston Andros Adamson static int decode_access(struct xdr_stream *xdr, u32 *supported, u32 *access) 42531da177e4SLinus Torvalds { 42548687b63aSAl Viro __be32 *p; 42551da177e4SLinus Torvalds uint32_t supp, acc; 42561da177e4SLinus Torvalds int status; 42571da177e4SLinus Torvalds 42581da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 42591da177e4SLinus Torvalds if (status) 42601da177e4SLinus Torvalds return status; 4261c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4262c0eae66eSBenny Halevy if (unlikely(!p)) 4263c0eae66eSBenny Halevy goto out_overflow; 42646f723f77SBenny Halevy supp = be32_to_cpup(p++); 4265cccddf4fSBenny Halevy acc = be32_to_cpup(p); 42666168f62cSWeston Andros Adamson *supported = supp; 42676168f62cSWeston Andros Adamson *access = acc; 42681da177e4SLinus Torvalds return 0; 4269c0eae66eSBenny Halevy out_overflow: 4270c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4271c0eae66eSBenny Halevy return -EIO; 42721da177e4SLinus Torvalds } 42731da177e4SLinus Torvalds 427407d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 42751da177e4SLinus Torvalds { 42768687b63aSAl Viro __be32 *p; 427707d30434SBenny Halevy 427807d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 427907d30434SBenny Halevy if (likely(p)) { 428007d30434SBenny Halevy memcpy(buf, p, len); 428107d30434SBenny Halevy return 0; 428207d30434SBenny Halevy } 428307d30434SBenny Halevy print_overflow_msg(__func__, xdr); 428407d30434SBenny Halevy return -EIO; 428507d30434SBenny Halevy } 428607d30434SBenny Halevy 428707d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 428807d30434SBenny Halevy { 42892d2f24adSTrond Myklebust return decode_opaque_fixed(xdr, stateid, NFS4_STATEID_SIZE); 42901da177e4SLinus Torvalds } 42911da177e4SLinus Torvalds 42921da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 42931da177e4SLinus Torvalds { 42941da177e4SLinus Torvalds int status; 42951da177e4SLinus Torvalds 42961da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4297c1d51931STrond Myklebust if (status != -EIO) 4298c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 429907d30434SBenny Halevy if (!status) 430007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43011da177e4SLinus Torvalds return status; 43021da177e4SLinus Torvalds } 43031da177e4SLinus Torvalds 4304db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4305db942bbdSBenny Halevy { 4306cd93710eSChuck Lever return decode_opaque_fixed(xdr, verifier, NFS4_VERIFIER_SIZE); 43071da177e4SLinus Torvalds } 43081da177e4SLinus Torvalds 43092f2c63bcSTrond Myklebust static int decode_write_verifier(struct xdr_stream *xdr, struct nfs_write_verifier *verifier) 43102f2c63bcSTrond Myklebust { 43112f2c63bcSTrond Myklebust return decode_opaque_fixed(xdr, verifier->data, NFS4_VERIFIER_SIZE); 43122f2c63bcSTrond Myklebust } 43132f2c63bcSTrond Myklebust 43140b7c0153SFred Isaman static int decode_commit(struct xdr_stream *xdr, struct nfs_commitres *res) 43151da177e4SLinus Torvalds { 43161da177e4SLinus Torvalds int status; 43171da177e4SLinus Torvalds 43181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4319db942bbdSBenny Halevy if (!status) 43202f2c63bcSTrond Myklebust status = decode_write_verifier(xdr, &res->verf->verifier); 43211da177e4SLinus Torvalds return status; 43221da177e4SLinus Torvalds } 43231da177e4SLinus Torvalds 43241da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43251da177e4SLinus Torvalds { 43268687b63aSAl Viro __be32 *p; 43271da177e4SLinus Torvalds uint32_t bmlen; 43281da177e4SLinus Torvalds int status; 43291da177e4SLinus Torvalds 43301da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 43311da177e4SLinus Torvalds if (status) 43321da177e4SLinus Torvalds return status; 43331da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 43341da177e4SLinus Torvalds return status; 4335c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4336c0eae66eSBenny Halevy if (unlikely(!p)) 4337c0eae66eSBenny Halevy goto out_overflow; 4338cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4339c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4340c0eae66eSBenny Halevy if (likely(p)) 43411da177e4SLinus Torvalds return 0; 4342c0eae66eSBenny Halevy out_overflow: 4343c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4344c0eae66eSBenny Halevy return -EIO; 43451da177e4SLinus Torvalds } 43461da177e4SLinus Torvalds 43471da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 43481da177e4SLinus Torvalds { 4349256e48bbSTrond Myklebust unsigned int savep; 4350dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43511da177e4SLinus Torvalds int status; 43521da177e4SLinus Torvalds 43531da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43541da177e4SLinus Torvalds goto xdr_error; 43551da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43561da177e4SLinus Torvalds goto xdr_error; 43571da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43581da177e4SLinus Torvalds goto xdr_error; 43591da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 43601da177e4SLinus Torvalds goto xdr_error; 4361264e6351SChuck Lever if ((status = decode_attr_fh_expire_type(xdr, bitmap, 4362264e6351SChuck Lever &res->fh_expire_type)) != 0) 4363264e6351SChuck Lever goto xdr_error; 43641da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 43651da177e4SLinus Torvalds goto xdr_error; 43661da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 43671da177e4SLinus Torvalds goto xdr_error; 43681da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 43691da177e4SLinus Torvalds goto xdr_error; 43701da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43711da177e4SLinus Torvalds xdr_error: 43723110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43731da177e4SLinus Torvalds return status; 43741da177e4SLinus Torvalds } 43751da177e4SLinus Torvalds 43761da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 43771da177e4SLinus Torvalds { 4378256e48bbSTrond Myklebust unsigned int savep; 4379dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43801da177e4SLinus Torvalds int status; 43811da177e4SLinus Torvalds 43821da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43831da177e4SLinus Torvalds goto xdr_error; 43841da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43851da177e4SLinus Torvalds goto xdr_error; 43861da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43871da177e4SLinus Torvalds goto xdr_error; 43881da177e4SLinus Torvalds 43891da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 43901da177e4SLinus Torvalds goto xdr_error; 43911da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 43921da177e4SLinus Torvalds goto xdr_error; 43931da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 43941da177e4SLinus Torvalds goto xdr_error; 43951da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 43961da177e4SLinus Torvalds goto xdr_error; 43971da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 43981da177e4SLinus Torvalds goto xdr_error; 43991da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 44001da177e4SLinus Torvalds goto xdr_error; 44011da177e4SLinus Torvalds 44021da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44031da177e4SLinus Torvalds xdr_error: 44043110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44051da177e4SLinus Torvalds return status; 44061da177e4SLinus Torvalds } 44071da177e4SLinus Torvalds 44081da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 44091da177e4SLinus Torvalds { 4410256e48bbSTrond Myklebust unsigned int savep; 4411dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 44121da177e4SLinus Torvalds int status; 44131da177e4SLinus Torvalds 44141da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 44151da177e4SLinus Torvalds goto xdr_error; 44161da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 44171da177e4SLinus Torvalds goto xdr_error; 44181da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 44191da177e4SLinus Torvalds goto xdr_error; 44201da177e4SLinus Torvalds 44211da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 44221da177e4SLinus Torvalds goto xdr_error; 44231da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 44241da177e4SLinus Torvalds goto xdr_error; 44251da177e4SLinus Torvalds 44261da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 44271da177e4SLinus Torvalds xdr_error: 44283110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 44291da177e4SLinus Torvalds return status; 44301da177e4SLinus Torvalds } 44311da177e4SLinus Torvalds 443288034c3dSAndy Adamson static int decode_threshold_hint(struct xdr_stream *xdr, 443388034c3dSAndy Adamson uint32_t *bitmap, 443488034c3dSAndy Adamson uint64_t *res, 443588034c3dSAndy Adamson uint32_t hint_bit) 443688034c3dSAndy Adamson { 443788034c3dSAndy Adamson __be32 *p; 443888034c3dSAndy Adamson 443988034c3dSAndy Adamson *res = 0; 444088034c3dSAndy Adamson if (likely(bitmap[0] & hint_bit)) { 444188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 8); 444288034c3dSAndy Adamson if (unlikely(!p)) 444388034c3dSAndy Adamson goto out_overflow; 444488034c3dSAndy Adamson xdr_decode_hyper(p, res); 444588034c3dSAndy Adamson } 444688034c3dSAndy Adamson return 0; 444788034c3dSAndy Adamson out_overflow: 444888034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 444988034c3dSAndy Adamson return -EIO; 445088034c3dSAndy Adamson } 445188034c3dSAndy Adamson 445288034c3dSAndy Adamson static int decode_first_threshold_item4(struct xdr_stream *xdr, 445388034c3dSAndy Adamson struct nfs4_threshold *res) 445488034c3dSAndy Adamson { 4455256e48bbSTrond Myklebust __be32 *p; 4456256e48bbSTrond Myklebust unsigned int savep; 445788034c3dSAndy Adamson uint32_t bitmap[3] = {0,}, attrlen; 445888034c3dSAndy Adamson int status; 445988034c3dSAndy Adamson 446088034c3dSAndy Adamson /* layout type */ 446188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 446288034c3dSAndy Adamson if (unlikely(!p)) { 446388034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 446488034c3dSAndy Adamson return -EIO; 446588034c3dSAndy Adamson } 446688034c3dSAndy Adamson res->l_type = be32_to_cpup(p); 446788034c3dSAndy Adamson 446888034c3dSAndy Adamson /* thi_hintset bitmap */ 446988034c3dSAndy Adamson status = decode_attr_bitmap(xdr, bitmap); 447088034c3dSAndy Adamson if (status < 0) 447188034c3dSAndy Adamson goto xdr_error; 447288034c3dSAndy Adamson 447388034c3dSAndy Adamson /* thi_hintlist length */ 447488034c3dSAndy Adamson status = decode_attr_length(xdr, &attrlen, &savep); 447588034c3dSAndy Adamson if (status < 0) 447688034c3dSAndy Adamson goto xdr_error; 447788034c3dSAndy Adamson /* thi_hintlist */ 447888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_sz, THRESHOLD_RD); 447988034c3dSAndy Adamson if (status < 0) 448088034c3dSAndy Adamson goto xdr_error; 448188034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_sz, THRESHOLD_WR); 448288034c3dSAndy Adamson if (status < 0) 448388034c3dSAndy Adamson goto xdr_error; 448488034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->rd_io_sz, 448588034c3dSAndy Adamson THRESHOLD_RD_IO); 448688034c3dSAndy Adamson if (status < 0) 448788034c3dSAndy Adamson goto xdr_error; 448888034c3dSAndy Adamson status = decode_threshold_hint(xdr, bitmap, &res->wr_io_sz, 448988034c3dSAndy Adamson THRESHOLD_WR_IO); 449088034c3dSAndy Adamson if (status < 0) 449188034c3dSAndy Adamson goto xdr_error; 449288034c3dSAndy Adamson 449388034c3dSAndy Adamson status = verify_attr_len(xdr, savep, attrlen); 449488034c3dSAndy Adamson res->bm = bitmap[0]; 449588034c3dSAndy Adamson 449688034c3dSAndy Adamson dprintk("%s bm=0x%x rd_sz=%llu wr_sz=%llu rd_io=%llu wr_io=%llu\n", 449788034c3dSAndy Adamson __func__, res->bm, res->rd_sz, res->wr_sz, res->rd_io_sz, 449888034c3dSAndy Adamson res->wr_io_sz); 449988034c3dSAndy Adamson xdr_error: 450088034c3dSAndy Adamson dprintk("%s ret=%d!\n", __func__, status); 450188034c3dSAndy Adamson return status; 450288034c3dSAndy Adamson } 450388034c3dSAndy Adamson 450488034c3dSAndy Adamson /* 450588034c3dSAndy Adamson * Thresholds on pNFS direct I/O vrs MDS I/O 450688034c3dSAndy Adamson */ 450788034c3dSAndy Adamson static int decode_attr_mdsthreshold(struct xdr_stream *xdr, 450888034c3dSAndy Adamson uint32_t *bitmap, 450988034c3dSAndy Adamson struct nfs4_threshold *res) 451088034c3dSAndy Adamson { 451188034c3dSAndy Adamson __be32 *p; 451288034c3dSAndy Adamson int status = 0; 451388034c3dSAndy Adamson uint32_t num; 451488034c3dSAndy Adamson 451588034c3dSAndy Adamson if (unlikely(bitmap[2] & (FATTR4_WORD2_MDSTHRESHOLD - 1U))) 451688034c3dSAndy Adamson return -EIO; 4517029c5347STrond Myklebust if (bitmap[2] & FATTR4_WORD2_MDSTHRESHOLD) { 45181549210fSTrond Myklebust /* Did the server return an unrequested attribute? */ 45191549210fSTrond Myklebust if (unlikely(res == NULL)) 45201549210fSTrond Myklebust return -EREMOTEIO; 452188034c3dSAndy Adamson p = xdr_inline_decode(xdr, 4); 452288034c3dSAndy Adamson if (unlikely(!p)) 452388034c3dSAndy Adamson goto out_overflow; 452488034c3dSAndy Adamson num = be32_to_cpup(p); 452588034c3dSAndy Adamson if (num == 0) 452688034c3dSAndy Adamson return 0; 452788034c3dSAndy Adamson if (num > 1) 452888034c3dSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout " 452988034c3dSAndy Adamson "drivers per filesystem not supported\n", 453088034c3dSAndy Adamson __func__); 453188034c3dSAndy Adamson 453288034c3dSAndy Adamson status = decode_first_threshold_item4(xdr, res); 4533029c5347STrond Myklebust bitmap[2] &= ~FATTR4_WORD2_MDSTHRESHOLD; 453488034c3dSAndy Adamson } 453588034c3dSAndy Adamson return status; 453688034c3dSAndy Adamson out_overflow: 453788034c3dSAndy Adamson print_overflow_msg(__func__, xdr); 453888034c3dSAndy Adamson return -EIO; 453988034c3dSAndy Adamson } 454088034c3dSAndy Adamson 4541ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4542ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 4543aa9c2669SDavid Quigley struct nfs4_fs_locations *fs_loc, struct nfs4_label *label, 45446926afd1STrond Myklebust const struct nfs_server *server) 45451da177e4SLinus Torvalds { 4546bca79478STrond Myklebust int status; 4547bca79478STrond Myklebust umode_t fmode = 0; 4548ae42c70aSBryan Schumaker uint32_t type; 4549ee7b75fcSTrond Myklebust int32_t err; 45501da177e4SLinus Torvalds 4551f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4552f26c7a78STrond Myklebust if (status < 0) 45531da177e4SLinus Torvalds goto xdr_error; 4554409924e4STrond Myklebust fattr->mode = 0; 4555409924e4STrond Myklebust if (status != 0) { 4556409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4557409924e4STrond Myklebust fattr->valid |= status; 4558409924e4STrond Myklebust } 45591da177e4SLinus Torvalds 4560f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4561f26c7a78STrond Myklebust if (status < 0) 45621da177e4SLinus Torvalds goto xdr_error; 4563409924e4STrond Myklebust fattr->valid |= status; 4564f26c7a78STrond Myklebust 4565f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4566f26c7a78STrond Myklebust if (status < 0) 45671da177e4SLinus Torvalds goto xdr_error; 4568409924e4STrond Myklebust fattr->valid |= status; 4569f26c7a78STrond Myklebust 4570f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4571f26c7a78STrond Myklebust if (status < 0) 45721da177e4SLinus Torvalds goto xdr_error; 4573409924e4STrond Myklebust fattr->valid |= status; 4574f26c7a78STrond Myklebust 4575ee7b75fcSTrond Myklebust err = 0; 4576ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4577ae42c70aSBryan Schumaker if (status < 0) 4578ae42c70aSBryan Schumaker goto xdr_error; 4579ae42c70aSBryan Schumaker 4580ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4581ae42c70aSBryan Schumaker if (status < 0) 4582ae42c70aSBryan Schumaker goto xdr_error; 4583ae42c70aSBryan Schumaker 4584f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4585f26c7a78STrond Myklebust if (status < 0) 45861da177e4SLinus Torvalds goto xdr_error; 4587409924e4STrond Myklebust fattr->valid |= status; 4588f26c7a78STrond Myklebust 45898b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4590f26c7a78STrond Myklebust if (status < 0) 4591683b57b4STrond Myklebust goto xdr_error; 4592409924e4STrond Myklebust fattr->valid |= status; 4593f26c7a78STrond Myklebust 4594f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4595f26c7a78STrond Myklebust if (status < 0) 45961da177e4SLinus Torvalds goto xdr_error; 4597409924e4STrond Myklebust if (status != 0) { 45981da177e4SLinus Torvalds fattr->mode |= fmode; 4599409924e4STrond Myklebust fattr->valid |= status; 4600409924e4STrond Myklebust } 4601f26c7a78STrond Myklebust 4602f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4603f26c7a78STrond Myklebust if (status < 0) 46041da177e4SLinus Torvalds goto xdr_error; 4605409924e4STrond Myklebust fattr->valid |= status; 4606f26c7a78STrond Myklebust 46076926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4608f26c7a78STrond Myklebust if (status < 0) 46091da177e4SLinus Torvalds goto xdr_error; 4610409924e4STrond Myklebust fattr->valid |= status; 4611f26c7a78STrond Myklebust 46126926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4613f26c7a78STrond Myklebust if (status < 0) 46141da177e4SLinus Torvalds goto xdr_error; 4615409924e4STrond Myklebust fattr->valid |= status; 4616f26c7a78STrond Myklebust 4617f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4618f26c7a78STrond Myklebust if (status < 0) 46191da177e4SLinus Torvalds goto xdr_error; 4620409924e4STrond Myklebust fattr->valid |= status; 4621f26c7a78STrond Myklebust 4622f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4623f26c7a78STrond Myklebust if (status < 0) 46241da177e4SLinus Torvalds goto xdr_error; 4625409924e4STrond Myklebust fattr->valid |= status; 4626f26c7a78STrond Myklebust 4627f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4628f26c7a78STrond Myklebust if (status < 0) 46291da177e4SLinus Torvalds goto xdr_error; 4630409924e4STrond Myklebust fattr->valid |= status; 4631f26c7a78STrond Myklebust 4632f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4633f26c7a78STrond Myklebust if (status < 0) 46341da177e4SLinus Torvalds goto xdr_error; 4635409924e4STrond Myklebust fattr->valid |= status; 4636f26c7a78STrond Myklebust 4637f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4638f26c7a78STrond Myklebust if (status < 0) 46391da177e4SLinus Torvalds goto xdr_error; 4640409924e4STrond Myklebust fattr->valid |= status; 4641f26c7a78STrond Myklebust 464228331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4643f26c7a78STrond Myklebust if (status < 0) 464499baf625SManoj Naik goto xdr_error; 4645409924e4STrond Myklebust fattr->valid |= status; 4646f26c7a78STrond Myklebust 464788034c3dSAndy Adamson status = decode_attr_mdsthreshold(xdr, bitmap, fattr->mdsthreshold); 464888034c3dSAndy Adamson if (status < 0) 464988034c3dSAndy Adamson goto xdr_error; 465088034c3dSAndy Adamson 4651aa9c2669SDavid Quigley if (label) { 4652aa9c2669SDavid Quigley status = decode_attr_security_label(xdr, bitmap, label); 4653aa9c2669SDavid Quigley if (status < 0) 4654aa9c2669SDavid Quigley goto xdr_error; 4655aa9c2669SDavid Quigley fattr->valid |= status; 4656aa9c2669SDavid Quigley } 4657aa9c2669SDavid Quigley 4658ae42c70aSBryan Schumaker xdr_error: 4659ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4660ae42c70aSBryan Schumaker return status; 4661ae42c70aSBryan Schumaker } 4662ae42c70aSBryan Schumaker 4663ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 46648b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 4665aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4666ae42c70aSBryan Schumaker { 4667256e48bbSTrond Myklebust unsigned int savep; 4668ae42c70aSBryan Schumaker uint32_t attrlen, 4669dae100c2SFred Isaman bitmap[3] = {0}; 4670ae42c70aSBryan Schumaker int status; 4671ae42c70aSBryan Schumaker 4672ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4673ae42c70aSBryan Schumaker if (status < 0) 4674ae42c70aSBryan Schumaker goto xdr_error; 4675ae42c70aSBryan Schumaker 4676ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4677ae42c70aSBryan Schumaker if (status < 0) 4678ae42c70aSBryan Schumaker goto xdr_error; 4679ae42c70aSBryan Schumaker 4680ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4681ae42c70aSBryan Schumaker if (status < 0) 4682ae42c70aSBryan Schumaker goto xdr_error; 4683ae42c70aSBryan Schumaker 4684aa9c2669SDavid Quigley status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, 4685aa9c2669SDavid Quigley label, server); 4686ae42c70aSBryan Schumaker if (status < 0) 4687ae42c70aSBryan Schumaker goto xdr_error; 4688ae42c70aSBryan Schumaker 4689f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 46901da177e4SLinus Torvalds xdr_error: 46913110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 46921da177e4SLinus Torvalds return status; 46931da177e4SLinus Torvalds } 46941da177e4SLinus Torvalds 4695aa9c2669SDavid Quigley static int decode_getfattr_label(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4696aa9c2669SDavid Quigley struct nfs4_label *label, const struct nfs_server *server) 4697aa9c2669SDavid Quigley { 4698aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, label, server); 4699aa9c2669SDavid Quigley } 4700aa9c2669SDavid Quigley 4701ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 47026926afd1STrond Myklebust const struct nfs_server *server) 4703ae42c70aSBryan Schumaker { 4704aa9c2669SDavid Quigley return decode_getfattr_generic(xdr, fattr, NULL, NULL, NULL, server); 4705ae42c70aSBryan Schumaker } 47061da177e4SLinus Torvalds 4707504913fbSAndy Adamson /* 4708504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4709504913fbSAndy Adamson * one layout driver per file system. 4710504913fbSAndy Adamson */ 4711504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4712504913fbSAndy Adamson uint32_t *layouttype) 4713504913fbSAndy Adamson { 4714b8a8a0ddSTrond Myklebust __be32 *p; 4715504913fbSAndy Adamson int num; 4716504913fbSAndy Adamson 4717504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4718504913fbSAndy Adamson if (unlikely(!p)) 4719504913fbSAndy Adamson goto out_overflow; 4720504913fbSAndy Adamson num = be32_to_cpup(p); 4721504913fbSAndy Adamson 4722504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4723504913fbSAndy Adamson if (num == 0) { 4724504913fbSAndy Adamson *layouttype = 0; 4725504913fbSAndy Adamson return 0; 4726504913fbSAndy Adamson } 4727504913fbSAndy Adamson if (num > 1) 4728a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4729a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4730504913fbSAndy Adamson 4731504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4732504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4733504913fbSAndy Adamson if (unlikely(!p)) 4734504913fbSAndy Adamson goto out_overflow; 4735504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4736504913fbSAndy Adamson return 0; 4737504913fbSAndy Adamson out_overflow: 4738504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4739504913fbSAndy Adamson return -EIO; 4740504913fbSAndy Adamson } 4741504913fbSAndy Adamson 4742504913fbSAndy Adamson /* 4743504913fbSAndy Adamson * The type of file system exported. 4744504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4745504913fbSAndy Adamson */ 4746504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4747504913fbSAndy Adamson uint32_t *layouttype) 4748504913fbSAndy Adamson { 4749504913fbSAndy Adamson int status = 0; 4750504913fbSAndy Adamson 4751504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4752504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4753504913fbSAndy Adamson return -EIO; 4754504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4755504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4756504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4757504913fbSAndy Adamson } else 4758504913fbSAndy Adamson *layouttype = 0; 4759504913fbSAndy Adamson return status; 4760504913fbSAndy Adamson } 4761504913fbSAndy Adamson 4762dae100c2SFred Isaman /* 4763dae100c2SFred Isaman * The prefered block size for layout directed io 4764dae100c2SFred Isaman */ 4765dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4766dae100c2SFred Isaman uint32_t *res) 4767dae100c2SFred Isaman { 4768dae100c2SFred Isaman __be32 *p; 4769dae100c2SFred Isaman 4770dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4771dae100c2SFred Isaman *res = 0; 4772dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4773dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4774dae100c2SFred Isaman if (unlikely(!p)) { 4775dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4776dae100c2SFred Isaman return -EIO; 4777dae100c2SFred Isaman } 4778dae100c2SFred Isaman *res = be32_to_cpup(p); 4779dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4780dae100c2SFred Isaman } 4781dae100c2SFred Isaman return 0; 4782dae100c2SFred Isaman } 4783dae100c2SFred Isaman 47841da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 47851da177e4SLinus Torvalds { 4786256e48bbSTrond Myklebust unsigned int savep; 4787dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 47881da177e4SLinus Torvalds int status; 47891da177e4SLinus Torvalds 47901da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 47911da177e4SLinus Torvalds goto xdr_error; 47921da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 47931da177e4SLinus Torvalds goto xdr_error; 47941da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 47951da177e4SLinus Torvalds goto xdr_error; 47961da177e4SLinus Torvalds 47971da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 47981da177e4SLinus Torvalds 47991da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 48001da177e4SLinus Torvalds goto xdr_error; 48011da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 48021da177e4SLinus Torvalds goto xdr_error; 48031da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 48041da177e4SLinus Torvalds goto xdr_error; 48051da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 48061da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 48071da177e4SLinus Torvalds goto xdr_error; 48081da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 480955b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 481055b6e774SRicardo Labiaga if (status != 0) 481155b6e774SRicardo Labiaga goto xdr_error; 4812504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4813504913fbSAndy Adamson if (status != 0) 4814504913fbSAndy Adamson goto xdr_error; 4815dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4816dae100c2SFred Isaman if (status) 4817dae100c2SFred Isaman goto xdr_error; 48181da177e4SLinus Torvalds 48191da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 48201da177e4SLinus Torvalds xdr_error: 48213110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 48221da177e4SLinus Torvalds return status; 48231da177e4SLinus Torvalds } 48241da177e4SLinus Torvalds 48251da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 48261da177e4SLinus Torvalds { 48278687b63aSAl Viro __be32 *p; 48281da177e4SLinus Torvalds uint32_t len; 48291da177e4SLinus Torvalds int status; 48301da177e4SLinus Torvalds 48319936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 48329936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 48339936781dSTrond Myklebust 48341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 48351da177e4SLinus Torvalds if (status) 48361da177e4SLinus Torvalds return status; 48371da177e4SLinus Torvalds 4838c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4839c0eae66eSBenny Halevy if (unlikely(!p)) 4840c0eae66eSBenny Halevy goto out_overflow; 4841cccddf4fSBenny Halevy len = be32_to_cpup(p); 48421da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 48431da177e4SLinus Torvalds return -EIO; 48441da177e4SLinus Torvalds fh->size = len; 4845c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4846c0eae66eSBenny Halevy if (unlikely(!p)) 4847c0eae66eSBenny Halevy goto out_overflow; 484899398d06SBenny Halevy memcpy(fh->data, p, len); 48491da177e4SLinus Torvalds return 0; 4850c0eae66eSBenny Halevy out_overflow: 4851c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4852c0eae66eSBenny Halevy return -EIO; 48531da177e4SLinus Torvalds } 48541da177e4SLinus Torvalds 48551da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 48561da177e4SLinus Torvalds { 48571da177e4SLinus Torvalds int status; 48581da177e4SLinus Torvalds 48591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 48601da177e4SLinus Torvalds if (status) 48611da177e4SLinus Torvalds return status; 48621da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 48631da177e4SLinus Torvalds } 48641da177e4SLinus Torvalds 48651da177e4SLinus Torvalds /* 48661da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 48671da177e4SLinus Torvalds */ 4868911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 48691da177e4SLinus Torvalds { 4870911d1aafSTrond Myklebust uint64_t offset, length, clientid; 48718687b63aSAl Viro __be32 *p; 4872911d1aafSTrond Myklebust uint32_t namelen, type; 48731da177e4SLinus Torvalds 4874babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4875c0eae66eSBenny Halevy if (unlikely(!p)) 4876c0eae66eSBenny Halevy goto out_overflow; 4877babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 48783ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4879babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4880babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4881911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4882911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4883911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4884911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4885911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4886911d1aafSTrond Myklebust if (type & 1) 4887911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4888911d1aafSTrond Myklebust fl->fl_pid = 0; 4889911d1aafSTrond Myklebust } 4890babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4891babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4892babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4893c0eae66eSBenny Halevy if (likely(p)) 48941da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4895c0eae66eSBenny Halevy out_overflow: 4896c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4897c0eae66eSBenny Halevy return -EIO; 48981da177e4SLinus Torvalds } 48991da177e4SLinus Torvalds 4900911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 49011da177e4SLinus Torvalds { 49021da177e4SLinus Torvalds int status; 49031da177e4SLinus Torvalds 49041da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4905c1d51931STrond Myklebust if (status == -EIO) 4906c1d51931STrond Myklebust goto out; 49071da177e4SLinus Torvalds if (status == 0) { 490807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 490907d30434SBenny Halevy if (unlikely(status)) 491007d30434SBenny Halevy goto out; 49111da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4912c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4913c1d51931STrond Myklebust if (res->open_seqid != NULL) 4914c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4915c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4916c1d51931STrond Myklebust out: 49171da177e4SLinus Torvalds return status; 49181da177e4SLinus Torvalds } 49191da177e4SLinus Torvalds 4920911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 49211da177e4SLinus Torvalds { 49221da177e4SLinus Torvalds int status; 49231da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 49241da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4925911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 49261da177e4SLinus Torvalds return status; 49271da177e4SLinus Torvalds } 49281da177e4SLinus Torvalds 4929911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 49301da177e4SLinus Torvalds { 49311da177e4SLinus Torvalds int status; 49321da177e4SLinus Torvalds 49331da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4934c1d51931STrond Myklebust if (status != -EIO) 4935c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 493607d30434SBenny Halevy if (status == 0) 493707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 49381da177e4SLinus Torvalds return status; 49391da177e4SLinus Torvalds } 49401da177e4SLinus Torvalds 4941d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4942d3c7b7ccSTrond Myklebust { 4943d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4944d3c7b7ccSTrond Myklebust } 4945d3c7b7ccSTrond Myklebust 49461da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 49471da177e4SLinus Torvalds { 49481da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 49491da177e4SLinus Torvalds } 49501da177e4SLinus Torvalds 49511da177e4SLinus Torvalds /* This is too sick! */ 49521da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 49531da177e4SLinus Torvalds { 49548687b63aSAl Viro __be32 *p; 49551da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 49561da177e4SLinus Torvalds 4957c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4958c0eae66eSBenny Halevy if (unlikely(!p)) 4959c0eae66eSBenny Halevy goto out_overflow; 49606f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 49611da177e4SLinus Torvalds switch (limit_type) { 49621da177e4SLinus Torvalds case 1: 4963cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 49641da177e4SLinus Torvalds break; 49651da177e4SLinus Torvalds case 2: 49666f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4967cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 49681da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 49691da177e4SLinus Torvalds } 49701da177e4SLinus Torvalds return 0; 4971c0eae66eSBenny Halevy out_overflow: 4972c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4973c0eae66eSBenny Halevy return -EIO; 49741da177e4SLinus Torvalds } 49751da177e4SLinus Torvalds 49761da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 49771da177e4SLinus Torvalds { 49788687b63aSAl Viro __be32 *p; 49791da177e4SLinus Torvalds uint32_t delegation_type; 498007d30434SBenny Halevy int status; 49811da177e4SLinus Torvalds 4982c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4983c0eae66eSBenny Halevy if (unlikely(!p)) 4984c0eae66eSBenny Halevy goto out_overflow; 4985cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 49861da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 49871da177e4SLinus Torvalds res->delegation_type = 0; 49881da177e4SLinus Torvalds return 0; 49891da177e4SLinus Torvalds } 499007d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 499107d30434SBenny Halevy if (unlikely(status)) 499207d30434SBenny Halevy return status; 4993c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4994c0eae66eSBenny Halevy if (unlikely(!p)) 4995c0eae66eSBenny Halevy goto out_overflow; 4996cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 499705d564feSAndy Adamson 49981da177e4SLinus Torvalds switch (delegation_type) { 49991da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 50001da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 50011da177e4SLinus Torvalds break; 50021da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 50031da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 50041da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 50051da177e4SLinus Torvalds return -EIO; 50061da177e4SLinus Torvalds } 50077539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 5008c0eae66eSBenny Halevy out_overflow: 5009c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5010c0eae66eSBenny Halevy return -EIO; 50111da177e4SLinus Torvalds } 50121da177e4SLinus Torvalds 50131da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 50141da177e4SLinus Torvalds { 50158687b63aSAl Viro __be32 *p; 5016aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 50171da177e4SLinus Torvalds int status; 50181da177e4SLinus Torvalds 5019c7848f69STrond Myklebust if (!__decode_op_hdr(xdr, OP_OPEN, &status)) 5020c7848f69STrond Myklebust return status; 5021c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 5022c7848f69STrond Myklebust if (status) 5023c7848f69STrond Myklebust return status; 502407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 502507d30434SBenny Halevy if (unlikely(status)) 50261da177e4SLinus Torvalds return status; 50271da177e4SLinus Torvalds 50281da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 50291da177e4SLinus Torvalds 5030c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5031c0eae66eSBenny Halevy if (unlikely(!p)) 5032c0eae66eSBenny Halevy goto out_overflow; 50336f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 5034cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 50351da177e4SLinus Torvalds if (bmlen > 10) 50361da177e4SLinus Torvalds goto xdr_error; 50371da177e4SLinus Torvalds 5038c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5039c0eae66eSBenny Halevy if (unlikely(!p)) 5040c0eae66eSBenny Halevy goto out_overflow; 5041aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 5042aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 50436f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 5044aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 5045aa53ed54SJeff Layton res->attrset[i] = 0; 5046aa53ed54SJeff Layton 50471da177e4SLinus Torvalds return decode_delegation(xdr, res); 50481da177e4SLinus Torvalds xdr_error: 50493110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 50501da177e4SLinus Torvalds return -EIO; 5051c0eae66eSBenny Halevy out_overflow: 5052c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5053c0eae66eSBenny Halevy return -EIO; 50541da177e4SLinus Torvalds } 50551da177e4SLinus Torvalds 50561da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 50571da177e4SLinus Torvalds { 50581da177e4SLinus Torvalds int status; 50591da177e4SLinus Torvalds 50601da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 5061c1d51931STrond Myklebust if (status != -EIO) 5062c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 506307d30434SBenny Halevy if (!status) 506407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 50651da177e4SLinus Torvalds return status; 50661da177e4SLinus Torvalds } 50671da177e4SLinus Torvalds 50681da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 50691da177e4SLinus Torvalds { 50701da177e4SLinus Torvalds int status; 50711da177e4SLinus Torvalds 50721da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 5073c1d51931STrond Myklebust if (status != -EIO) 5074c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 507507d30434SBenny Halevy if (!status) 507607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 50771da177e4SLinus Torvalds return status; 50781da177e4SLinus Torvalds } 50791da177e4SLinus Torvalds 50801da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 50811da177e4SLinus Torvalds { 50821da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 50831da177e4SLinus Torvalds } 50841da177e4SLinus Torvalds 50851da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 50861da177e4SLinus Torvalds { 50871da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 50881da177e4SLinus Torvalds } 50891da177e4SLinus Torvalds 50909137bdf3SAnna Schumaker static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, 50919137bdf3SAnna Schumaker struct nfs_pgio_res *res) 50921da177e4SLinus Torvalds { 50938687b63aSAl Viro __be32 *p; 509464bd577eSTrond Myklebust uint32_t count, eof, recvd; 50951da177e4SLinus Torvalds int status; 50961da177e4SLinus Torvalds 50971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 50981da177e4SLinus Torvalds if (status) 50991da177e4SLinus Torvalds return status; 5100c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5101c0eae66eSBenny Halevy if (unlikely(!p)) 5102c0eae66eSBenny Halevy goto out_overflow; 51036f723f77SBenny Halevy eof = be32_to_cpup(p++); 5104cccddf4fSBenny Halevy count = be32_to_cpup(p); 510564bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, count); 51061da177e4SLinus Torvalds if (count > recvd) { 5107fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 51081da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 51091da177e4SLinus Torvalds count = recvd; 51101da177e4SLinus Torvalds eof = 0; 51111da177e4SLinus Torvalds } 51121da177e4SLinus Torvalds res->eof = eof; 51131da177e4SLinus Torvalds res->count = count; 51141da177e4SLinus Torvalds return 0; 5115c0eae66eSBenny Halevy out_overflow: 5116c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5117c0eae66eSBenny Halevy return -EIO; 51181da177e4SLinus Torvalds } 51191da177e4SLinus Torvalds 51201da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 51211da177e4SLinus Torvalds { 5122bcecff77SChuck Lever int status; 5123cd93710eSChuck Lever __be32 verf[2]; 51241da177e4SLinus Torvalds 51251da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 5126db942bbdSBenny Halevy if (!status) 5127db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 5128db942bbdSBenny Halevy if (unlikely(status)) 51291da177e4SLinus Torvalds return status; 5130cd93710eSChuck Lever memcpy(verf, readdir->verifier.data, sizeof(verf)); 513144109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 5132cd93710eSChuck Lever __func__, verf[0], verf[1]); 513364bd577eSTrond Myklebust return xdr_read_pages(xdr, xdr->buf->page_len); 51341da177e4SLinus Torvalds } 51351da177e4SLinus Torvalds 51361da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 51371da177e4SLinus Torvalds { 51381da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 5139bcecff77SChuck Lever u32 len, recvd; 51408687b63aSAl Viro __be32 *p; 51411da177e4SLinus Torvalds int status; 51421da177e4SLinus Torvalds 51431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 51441da177e4SLinus Torvalds if (status) 51451da177e4SLinus Torvalds return status; 51461da177e4SLinus Torvalds 51471da177e4SLinus Torvalds /* Convert length of symlink */ 5148c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5149c0eae66eSBenny Halevy if (unlikely(!p)) 5150c0eae66eSBenny Halevy goto out_overflow; 5151cccddf4fSBenny Halevy len = be32_to_cpup(p); 51521da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 5153fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 51541da177e4SLinus Torvalds return -ENAMETOOLONG; 51551da177e4SLinus Torvalds } 515664bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, len); 51571da177e4SLinus Torvalds if (recvd < len) { 5158fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 51591da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 51601da177e4SLinus Torvalds return -EIO; 51611da177e4SLinus Torvalds } 51621da177e4SLinus Torvalds /* 51631da177e4SLinus Torvalds * The XDR encode routine has set things up so that 51641da177e4SLinus Torvalds * the link text will be copied directly into the 51651da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 51661da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 51671da177e4SLinus Torvalds * null-termination). 51681da177e4SLinus Torvalds */ 5169b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 51701da177e4SLinus Torvalds return 0; 5171c0eae66eSBenny Halevy out_overflow: 5172c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5173c0eae66eSBenny Halevy return -EIO; 51741da177e4SLinus Torvalds } 51751da177e4SLinus Torvalds 51761da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 51771da177e4SLinus Torvalds { 51781da177e4SLinus Torvalds int status; 51791da177e4SLinus Torvalds 51801da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 51811da177e4SLinus Torvalds if (status) 51821da177e4SLinus Torvalds goto out; 51831da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 51841da177e4SLinus Torvalds out: 51851da177e4SLinus Torvalds return status; 51861da177e4SLinus Torvalds } 51871da177e4SLinus Torvalds 51881da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 51891da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 51901da177e4SLinus Torvalds { 51911da177e4SLinus Torvalds int status; 51921da177e4SLinus Torvalds 51931da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 51941da177e4SLinus Torvalds if (status) 51951da177e4SLinus Torvalds goto out; 51961da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 51971da177e4SLinus Torvalds goto out; 51981da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 51991da177e4SLinus Torvalds out: 52001da177e4SLinus Torvalds return status; 52011da177e4SLinus Torvalds } 52021da177e4SLinus Torvalds 52031da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 52041da177e4SLinus Torvalds { 52051da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 52061da177e4SLinus Torvalds } 52071da177e4SLinus Torvalds 520856ae19f3STrond Myklebust static int 520956ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 521056ae19f3STrond Myklebust { 521156ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 521256ae19f3STrond Myklebust } 521356ae19f3STrond Myklebust 5214029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5215bf118a34SAndy Adamson struct nfs_getaclres *res) 5216029d105eSJ. Bruce Fields { 5217256e48bbSTrond Myklebust unsigned int savep; 5218029d105eSJ. Bruce Fields uint32_t attrlen, 5219dae100c2SFred Isaman bitmap[3] = {0}; 5220029d105eSJ. Bruce Fields int status; 5221cff298c7STrond Myklebust unsigned int pg_offset; 5222029d105eSJ. Bruce Fields 5223bf118a34SAndy Adamson res->acl_len = 0; 5224029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5225029d105eSJ. Bruce Fields goto out; 52265a006899SSachin Prabhu 5227519d3959STrond Myklebust xdr_enter_page(xdr, xdr->buf->page_len); 5228519d3959STrond Myklebust 5229cff298c7STrond Myklebust /* Calculate the offset of the page data */ 5230cff298c7STrond Myklebust pg_offset = xdr->buf->head[0].iov_len; 52315a006899SSachin Prabhu 5232029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5233029d105eSJ. Bruce Fields goto out; 5234029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5235029d105eSJ. Bruce Fields goto out; 5236029d105eSJ. Bruce Fields 5237029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5238029d105eSJ. Bruce Fields return -EIO; 5239029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5240029d105eSJ. Bruce Fields 5241bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5242bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5243bf118a34SAndy Adamson * variable length bitmaps.*/ 5244cff298c7STrond Myklebust res->acl_data_offset = xdr_stream_pos(xdr) - pg_offset; 5245519d3959STrond Myklebust res->acl_len = attrlen; 52461f1ea6c2STrond Myklebust 52471f1ea6c2STrond Myklebust /* Check for receive buffer overflow */ 52481f1ea6c2STrond Myklebust if (res->acl_len > (xdr->nwords << 2) || 52491f1ea6c2STrond Myklebust res->acl_len + res->acl_data_offset > xdr->buf->page_len) { 52501f1ea6c2STrond Myklebust res->acl_flags |= NFS4_ACL_TRUNC; 5251519d3959STrond Myklebust dprintk("NFS: acl reply: attrlen %u > page_len %u\n", 5252cff298c7STrond Myklebust attrlen, xdr->nwords << 2); 5253029d105eSJ. Bruce Fields } 52548c233cf9SJ. Bruce Fields } else 52558c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5256029d105eSJ. Bruce Fields 5257029d105eSJ. Bruce Fields out: 5258029d105eSJ. Bruce Fields return status; 5259029d105eSJ. Bruce Fields } 5260029d105eSJ. Bruce Fields 52611da177e4SLinus Torvalds static int 52621da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 52631da177e4SLinus Torvalds { 52641da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 52651da177e4SLinus Torvalds } 52661da177e4SLinus Torvalds 52679e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 52681da177e4SLinus Torvalds { 52698687b63aSAl Viro __be32 *p; 52701da177e4SLinus Torvalds uint32_t bmlen; 52711da177e4SLinus Torvalds int status; 52721da177e4SLinus Torvalds 52731da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 52741da177e4SLinus Torvalds if (status) 52751da177e4SLinus Torvalds return status; 5276c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5277c0eae66eSBenny Halevy if (unlikely(!p)) 5278c0eae66eSBenny Halevy goto out_overflow; 5279cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5280c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5281c0eae66eSBenny Halevy if (likely(p)) 52821da177e4SLinus Torvalds return 0; 5283c0eae66eSBenny Halevy out_overflow: 5284c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5285c0eae66eSBenny Halevy return -EIO; 52861da177e4SLinus Torvalds } 52871da177e4SLinus Torvalds 5288bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 52891da177e4SLinus Torvalds { 52908687b63aSAl Viro __be32 *p; 52911da177e4SLinus Torvalds uint32_t opnum; 52921da177e4SLinus Torvalds int32_t nfserr; 52931da177e4SLinus Torvalds 5294c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5295c0eae66eSBenny Halevy if (unlikely(!p)) 5296c0eae66eSBenny Halevy goto out_overflow; 52976f723f77SBenny Halevy opnum = be32_to_cpup(p++); 52981da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5299fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 53001da177e4SLinus Torvalds " %d\n", opnum); 53011da177e4SLinus Torvalds return -EIO; 53021da177e4SLinus Torvalds } 5303cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 53041da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5305c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5306c0eae66eSBenny Halevy if (unlikely(!p)) 5307c0eae66eSBenny Halevy goto out_overflow; 5308bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5309bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 53101da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 53111da177e4SLinus Torvalds uint32_t len; 53121da177e4SLinus Torvalds 53131da177e4SLinus Torvalds /* skip netid string */ 5314c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5315c0eae66eSBenny Halevy if (unlikely(!p)) 5316c0eae66eSBenny Halevy goto out_overflow; 5317cccddf4fSBenny Halevy len = be32_to_cpup(p); 5318c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5319c0eae66eSBenny Halevy if (unlikely(!p)) 5320c0eae66eSBenny Halevy goto out_overflow; 53211da177e4SLinus Torvalds 53221da177e4SLinus Torvalds /* skip uaddr string */ 5323c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5324c0eae66eSBenny Halevy if (unlikely(!p)) 5325c0eae66eSBenny Halevy goto out_overflow; 5326cccddf4fSBenny Halevy len = be32_to_cpup(p); 5327c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5328c0eae66eSBenny Halevy if (unlikely(!p)) 5329c0eae66eSBenny Halevy goto out_overflow; 53301da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 53311da177e4SLinus Torvalds } else 5332856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 53331da177e4SLinus Torvalds 53341da177e4SLinus Torvalds return 0; 5335c0eae66eSBenny Halevy out_overflow: 5336c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5337c0eae66eSBenny Halevy return -EIO; 53381da177e4SLinus Torvalds } 53391da177e4SLinus Torvalds 53401da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 53411da177e4SLinus Torvalds { 53421da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 53431da177e4SLinus Torvalds } 53441da177e4SLinus Torvalds 53459137bdf3SAnna Schumaker static int decode_write(struct xdr_stream *xdr, struct nfs_pgio_res *res) 53461da177e4SLinus Torvalds { 53478687b63aSAl Viro __be32 *p; 53481da177e4SLinus Torvalds int status; 53491da177e4SLinus Torvalds 53501da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 53511da177e4SLinus Torvalds if (status) 53521da177e4SLinus Torvalds return status; 53531da177e4SLinus Torvalds 53542f2c63bcSTrond Myklebust p = xdr_inline_decode(xdr, 8); 5355c0eae66eSBenny Halevy if (unlikely(!p)) 5356c0eae66eSBenny Halevy goto out_overflow; 53576f723f77SBenny Halevy res->count = be32_to_cpup(p++); 53586f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 53592f2c63bcSTrond Myklebust return decode_write_verifier(xdr, &res->verf->verifier); 5360c0eae66eSBenny Halevy out_overflow: 5361c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5362c0eae66eSBenny Halevy return -EIO; 53631da177e4SLinus Torvalds } 53641da177e4SLinus Torvalds 53651da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 53661da177e4SLinus Torvalds { 53671da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 53681da177e4SLinus Torvalds } 53691da177e4SLinus Torvalds 5370fb15b26fSChuck Lever static int decode_secinfo_gss(struct xdr_stream *xdr, 5371fb15b26fSChuck Lever struct nfs4_secinfo4 *flavor) 53725a5ea0d4SBryan Schumaker { 5373fb15b26fSChuck Lever u32 oid_len; 53745a5ea0d4SBryan Schumaker __be32 *p; 53755a5ea0d4SBryan Schumaker 53765a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 53775a5ea0d4SBryan Schumaker if (unlikely(!p)) 53785a5ea0d4SBryan Schumaker goto out_overflow; 5379fb15b26fSChuck Lever oid_len = be32_to_cpup(p); 5380fb15b26fSChuck Lever if (oid_len > GSS_OID_MAX_LEN) 53815a5ea0d4SBryan Schumaker goto out_err; 53825a5ea0d4SBryan Schumaker 5383fb15b26fSChuck Lever p = xdr_inline_decode(xdr, oid_len); 53845a5ea0d4SBryan Schumaker if (unlikely(!p)) 53855a5ea0d4SBryan Schumaker goto out_overflow; 5386fb15b26fSChuck Lever memcpy(flavor->flavor_info.oid.data, p, oid_len); 5387fb15b26fSChuck Lever flavor->flavor_info.oid.len = oid_len; 53885a5ea0d4SBryan Schumaker 53895a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 53905a5ea0d4SBryan Schumaker if (unlikely(!p)) 53915a5ea0d4SBryan Schumaker goto out_overflow; 5392fb15b26fSChuck Lever flavor->flavor_info.qop = be32_to_cpup(p++); 5393fb15b26fSChuck Lever flavor->flavor_info.service = be32_to_cpup(p); 53945a5ea0d4SBryan Schumaker 53955a5ea0d4SBryan Schumaker return 0; 53965a5ea0d4SBryan Schumaker 53975a5ea0d4SBryan Schumaker out_overflow: 53985a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 53995a5ea0d4SBryan Schumaker return -EIO; 54005a5ea0d4SBryan Schumaker out_err: 54015a5ea0d4SBryan Schumaker return -EINVAL; 54025a5ea0d4SBryan Schumaker } 54035a5ea0d4SBryan Schumaker 540431e4dda4SBryan Schumaker static int decode_secinfo_common(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 54055a5ea0d4SBryan Schumaker { 5406fb15b26fSChuck Lever struct nfs4_secinfo4 *sec_flavor; 5407fb15b26fSChuck Lever unsigned int i, num_flavors; 54085a5ea0d4SBryan Schumaker int status; 54095a5ea0d4SBryan Schumaker __be32 *p; 54105a5ea0d4SBryan Schumaker 54115a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54125a5ea0d4SBryan Schumaker if (unlikely(!p)) 54135a5ea0d4SBryan Schumaker goto out_overflow; 54145a5ea0d4SBryan Schumaker 5415c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5416c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5417c3dfc280SBryan Schumaker 5418c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 54195a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5420c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 54215a5ea0d4SBryan Schumaker break; 54225a5ea0d4SBryan Schumaker 54235a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 54245a5ea0d4SBryan Schumaker if (unlikely(!p)) 54255a5ea0d4SBryan Schumaker goto out_overflow; 54265a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 54275a5ea0d4SBryan Schumaker 54285a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5429613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5430613e901eSBryan Schumaker if (status) 5431613e901eSBryan Schumaker goto out; 54325a5ea0d4SBryan Schumaker } 5433c3dfc280SBryan Schumaker res->flavors->num_flavors++; 54345a5ea0d4SBryan Schumaker } 54355a5ea0d4SBryan Schumaker 543631e4dda4SBryan Schumaker status = 0; 5437613e901eSBryan Schumaker out: 5438613e901eSBryan Schumaker return status; 54395a5ea0d4SBryan Schumaker out_overflow: 54405a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 54415a5ea0d4SBryan Schumaker return -EIO; 54425a5ea0d4SBryan Schumaker } 54435a5ea0d4SBryan Schumaker 544431e4dda4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 544531e4dda4SBryan Schumaker { 544631e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO); 544731e4dda4SBryan Schumaker if (status) 544831e4dda4SBryan Schumaker return status; 544931e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 545031e4dda4SBryan Schumaker } 545131e4dda4SBryan Schumaker 545299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 545331e4dda4SBryan Schumaker static int decode_secinfo_no_name(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 545431e4dda4SBryan Schumaker { 545531e4dda4SBryan Schumaker int status = decode_op_hdr(xdr, OP_SECINFO_NO_NAME); 545631e4dda4SBryan Schumaker if (status) 545731e4dda4SBryan Schumaker return status; 545831e4dda4SBryan Schumaker return decode_secinfo_common(xdr, res); 545931e4dda4SBryan Schumaker } 546031e4dda4SBryan Schumaker 54612031cd1aSWeston Andros Adamson static int decode_op_map(struct xdr_stream *xdr, struct nfs4_op_map *op_map) 54622031cd1aSWeston Andros Adamson { 54632031cd1aSWeston Andros Adamson __be32 *p; 54642031cd1aSWeston Andros Adamson uint32_t bitmap_words; 54652031cd1aSWeston Andros Adamson unsigned int i; 54662031cd1aSWeston Andros Adamson 54672031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 54682031cd1aSWeston Andros Adamson bitmap_words = be32_to_cpup(p++); 54692031cd1aSWeston Andros Adamson if (bitmap_words > NFS4_OP_MAP_NUM_WORDS) 54702031cd1aSWeston Andros Adamson return -EIO; 54712031cd1aSWeston Andros Adamson p = xdr_inline_decode(xdr, 4 * bitmap_words); 54722031cd1aSWeston Andros Adamson for (i = 0; i < bitmap_words; i++) 54732031cd1aSWeston Andros Adamson op_map->u.words[i] = be32_to_cpup(p++); 54742031cd1aSWeston Andros Adamson 54752031cd1aSWeston Andros Adamson return 0; 54762031cd1aSWeston Andros Adamson } 54772031cd1aSWeston Andros Adamson 547899fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 547999fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 548099fe60d0SBenny Halevy { 548199fe60d0SBenny Halevy __be32 *p; 548299fe60d0SBenny Halevy uint32_t dummy; 54832460ba57SBenny Halevy char *dummy_str; 548499fe60d0SBenny Halevy int status; 54857d2ed9acSWeston Andros Adamson uint32_t impl_id_count; 548699fe60d0SBenny Halevy 548799fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 548899fe60d0SBenny Halevy if (status) 548999fe60d0SBenny Halevy return status; 549099fe60d0SBenny Halevy 5491c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5492c0eae66eSBenny Halevy if (unlikely(!p)) 5493c0eae66eSBenny Halevy goto out_overflow; 549432b01310STrond Myklebust xdr_decode_hyper(p, &res->clientid); 5495c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5496c0eae66eSBenny Halevy if (unlikely(!p)) 5497c0eae66eSBenny Halevy goto out_overflow; 549832b01310STrond Myklebust res->seqid = be32_to_cpup(p++); 549932b01310STrond Myklebust res->flags = be32_to_cpup(p++); 550099fe60d0SBenny Halevy 55012031cd1aSWeston Andros Adamson res->state_protect.how = be32_to_cpup(p); 55022031cd1aSWeston Andros Adamson switch (res->state_protect.how) { 55032031cd1aSWeston Andros Adamson case SP4_NONE: 55042031cd1aSWeston Andros Adamson break; 55052031cd1aSWeston Andros Adamson case SP4_MACH_CRED: 55062031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.enforce); 55072031cd1aSWeston Andros Adamson if (status) 55082031cd1aSWeston Andros Adamson return status; 55092031cd1aSWeston Andros Adamson status = decode_op_map(xdr, &res->state_protect.allow); 55102031cd1aSWeston Andros Adamson if (status) 55112031cd1aSWeston Andros Adamson return status; 55122031cd1aSWeston Andros Adamson break; 55132031cd1aSWeston Andros Adamson default: 55142031cd1aSWeston Andros Adamson WARN_ON_ONCE(1); 551599fe60d0SBenny Halevy return -EIO; 55162031cd1aSWeston Andros Adamson } 551799fe60d0SBenny Halevy 5518acdeb69dSChuck Lever /* server_owner4.so_minor_id */ 5519c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5520c0eae66eSBenny Halevy if (unlikely(!p)) 5521c0eae66eSBenny Halevy goto out_overflow; 5522acdeb69dSChuck Lever p = xdr_decode_hyper(p, &res->server_owner->minor_id); 552399fe60d0SBenny Halevy 5524acdeb69dSChuck Lever /* server_owner4.so_major_id */ 55252460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55262460ba57SBenny Halevy if (unlikely(status)) 55272460ba57SBenny Halevy return status; 552878fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 552978fe0f41SWeston Andros Adamson return -EIO; 5530acdeb69dSChuck Lever memcpy(res->server_owner->major_id, dummy_str, dummy); 5531acdeb69dSChuck Lever res->server_owner->major_id_sz = dummy; 553278fe0f41SWeston Andros Adamson 5533acdeb69dSChuck Lever /* server_scope4 */ 5534acdeb69dSChuck Lever status = decode_opaque_inline(xdr, &dummy, &dummy_str); 5535acdeb69dSChuck Lever if (unlikely(status)) 5536acdeb69dSChuck Lever return status; 5537acdeb69dSChuck Lever if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 5538acdeb69dSChuck Lever return -EIO; 553978fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 554078fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 554178fe0f41SWeston Andros Adamson 55427d2ed9acSWeston Andros Adamson /* Implementation Id */ 55437d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 4); 55447d2ed9acSWeston Andros Adamson if (unlikely(!p)) 55457d2ed9acSWeston Andros Adamson goto out_overflow; 55467d2ed9acSWeston Andros Adamson impl_id_count = be32_to_cpup(p++); 55477d2ed9acSWeston Andros Adamson 55487d2ed9acSWeston Andros Adamson if (impl_id_count) { 55497d2ed9acSWeston Andros Adamson /* nii_domain */ 55502460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55512460ba57SBenny Halevy if (unlikely(status)) 55522460ba57SBenny Halevy return status; 55537d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 55547d2ed9acSWeston Andros Adamson return -EIO; 55557d2ed9acSWeston Andros Adamson memcpy(res->impl_id->domain, dummy_str, dummy); 555699fe60d0SBenny Halevy 55577d2ed9acSWeston Andros Adamson /* nii_name */ 55587d2ed9acSWeston Andros Adamson status = decode_opaque_inline(xdr, &dummy, &dummy_str); 55597d2ed9acSWeston Andros Adamson if (unlikely(status)) 55607d2ed9acSWeston Andros Adamson return status; 55617d2ed9acSWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 55627d2ed9acSWeston Andros Adamson return -EIO; 55637d2ed9acSWeston Andros Adamson memcpy(res->impl_id->name, dummy_str, dummy); 55647d2ed9acSWeston Andros Adamson 55657d2ed9acSWeston Andros Adamson /* nii_date */ 55667d2ed9acSWeston Andros Adamson p = xdr_inline_decode(xdr, 12); 55677d2ed9acSWeston Andros Adamson if (unlikely(!p)) 55687d2ed9acSWeston Andros Adamson goto out_overflow; 55697d2ed9acSWeston Andros Adamson p = xdr_decode_hyper(p, &res->impl_id->date.seconds); 55707d2ed9acSWeston Andros Adamson res->impl_id->date.nseconds = be32_to_cpup(p); 55717d2ed9acSWeston Andros Adamson 55727d2ed9acSWeston Andros Adamson /* if there's more than one entry, ignore the rest */ 55737d2ed9acSWeston Andros Adamson } 557499fe60d0SBenny Halevy return 0; 5575c0eae66eSBenny Halevy out_overflow: 5576c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5577c0eae66eSBenny Halevy return -EIO; 557899fe60d0SBenny Halevy } 5579fc931582SAndy Adamson 5580fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5581fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5582fc931582SAndy Adamson { 5583fc931582SAndy Adamson __be32 *p; 5584c9c30dd5SBenny Halevy u32 nr_attrs, val; 5585fc931582SAndy Adamson 5586c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5587c0eae66eSBenny Halevy if (unlikely(!p)) 5588c0eae66eSBenny Halevy goto out_overflow; 5589c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5590c9c30dd5SBenny Halevy if (val) 5591c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 55926f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 55936f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 55946f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 55956f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 55966f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5597cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5598fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5599a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5600a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5601fc931582SAndy Adamson return -EINVAL; 5602fc931582SAndy Adamson } 5603c0eae66eSBenny Halevy if (nr_attrs == 1) { 5604c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5605c0eae66eSBenny Halevy if (unlikely(!p)) 5606c0eae66eSBenny Halevy goto out_overflow; 5607c0eae66eSBenny Halevy } 5608fc931582SAndy Adamson return 0; 5609c0eae66eSBenny Halevy out_overflow: 5610c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5611c0eae66eSBenny Halevy return -EIO; 5612fc931582SAndy Adamson } 5613fc931582SAndy Adamson 5614e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5615e78291e4SBenny Halevy { 5616e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5617fc931582SAndy Adamson } 5618fc931582SAndy Adamson 56197c44f1aeSWeston Andros Adamson static int decode_bind_conn_to_session(struct xdr_stream *xdr, 56207c44f1aeSWeston Andros Adamson struct nfs41_bind_conn_to_session_res *res) 56217c44f1aeSWeston Andros Adamson { 56227c44f1aeSWeston Andros Adamson __be32 *p; 56237c44f1aeSWeston Andros Adamson int status; 56247c44f1aeSWeston Andros Adamson 56257c44f1aeSWeston Andros Adamson status = decode_op_hdr(xdr, OP_BIND_CONN_TO_SESSION); 56267c44f1aeSWeston Andros Adamson if (!status) 56277c44f1aeSWeston Andros Adamson status = decode_sessionid(xdr, &res->session->sess_id); 56287c44f1aeSWeston Andros Adamson if (unlikely(status)) 56297c44f1aeSWeston Andros Adamson return status; 56307c44f1aeSWeston Andros Adamson 56317c44f1aeSWeston Andros Adamson /* dir flags, rdma mode bool */ 56327c44f1aeSWeston Andros Adamson p = xdr_inline_decode(xdr, 8); 56337c44f1aeSWeston Andros Adamson if (unlikely(!p)) 56347c44f1aeSWeston Andros Adamson goto out_overflow; 56357c44f1aeSWeston Andros Adamson 56367c44f1aeSWeston Andros Adamson res->dir = be32_to_cpup(p++); 56377c44f1aeSWeston Andros Adamson if (res->dir == 0 || res->dir > NFS4_CDFS4_BOTH) 56387c44f1aeSWeston Andros Adamson return -EIO; 56397c44f1aeSWeston Andros Adamson if (be32_to_cpup(p) == 0) 56407c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = false; 56417c44f1aeSWeston Andros Adamson else 56427c44f1aeSWeston Andros Adamson res->use_conn_in_rdma_mode = true; 56437c44f1aeSWeston Andros Adamson 56447c44f1aeSWeston Andros Adamson return 0; 56457c44f1aeSWeston Andros Adamson out_overflow: 56467c44f1aeSWeston Andros Adamson print_overflow_msg(__func__, xdr); 56477c44f1aeSWeston Andros Adamson return -EIO; 56487c44f1aeSWeston Andros Adamson } 56497c44f1aeSWeston Andros Adamson 5650fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5651fc931582SAndy Adamson struct nfs41_create_session_res *res) 5652fc931582SAndy Adamson { 5653fc931582SAndy Adamson __be32 *p; 5654fc931582SAndy Adamson int status; 5655fc931582SAndy Adamson struct nfs_client *clp = res->client; 5656fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5657fc931582SAndy Adamson 5658fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5659e78291e4SBenny Halevy if (!status) 5660e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5661e78291e4SBenny Halevy if (unlikely(status)) 5662fc931582SAndy Adamson return status; 5663fc931582SAndy Adamson 5664fc931582SAndy Adamson /* seqid, flags */ 5665c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5666c0eae66eSBenny Halevy if (unlikely(!p)) 5667c0eae66eSBenny Halevy goto out_overflow; 56686f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5669cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5670fc931582SAndy Adamson 5671fc931582SAndy Adamson /* Channel attributes */ 5672fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5673fc931582SAndy Adamson if (!status) 5674fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5675fc931582SAndy Adamson return status; 5676c0eae66eSBenny Halevy out_overflow: 5677c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5678c0eae66eSBenny Halevy return -EIO; 5679fc931582SAndy Adamson } 56800f3e66c6SAndy Adamson 56810f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 56820f3e66c6SAndy Adamson { 56830f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 56840f3e66c6SAndy Adamson } 568518019753SRicardo Labiaga 568666245539STrond Myklebust static int decode_destroy_clientid(struct xdr_stream *xdr, void *dummy) 568766245539STrond Myklebust { 568866245539STrond Myklebust return decode_op_hdr(xdr, OP_DESTROY_CLIENTID); 568966245539STrond Myklebust } 569066245539STrond Myklebust 569118019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 569218019753SRicardo Labiaga { 569318019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 569418019753SRicardo Labiaga } 569599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 569699fe60d0SBenny Halevy 56979b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 56989b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 56999b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 57009b7b9fccSAndy Adamson { 57019b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5702e3725ec0STrond Myklebust struct nfs4_session *session; 5703fc01cea9SAndy Adamson struct nfs4_sessionid id; 5704fc01cea9SAndy Adamson u32 dummy; 5705fc01cea9SAndy Adamson int status; 5706fc01cea9SAndy Adamson __be32 *p; 5707fc01cea9SAndy Adamson 5708e3725ec0STrond Myklebust if (res->sr_slot == NULL) 57099b7b9fccSAndy Adamson return 0; 57103bd2384aSChuck Lever if (!res->sr_slot->table->session) 57113bd2384aSChuck Lever return 0; 57129b7b9fccSAndy Adamson 5713fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5714e78291e4SBenny Halevy if (!status) 5715e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5716e78291e4SBenny Halevy if (unlikely(status)) 5717fc01cea9SAndy Adamson goto out_err; 57189b7b9fccSAndy Adamson 5719fc01cea9SAndy Adamson /* 5720fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5721fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5722fc01cea9SAndy Adamson */ 5723fdcb4577STrond Myklebust status = -EREMOTEIO; 5724e3725ec0STrond Myklebust session = res->sr_slot->table->session; 5725fc01cea9SAndy Adamson 5726e3725ec0STrond Myklebust if (memcmp(id.data, session->sess_id.data, 5727fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5728fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5729fc01cea9SAndy Adamson goto out_err; 5730fc01cea9SAndy Adamson } 5731e78291e4SBenny Halevy 5732c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5733c0eae66eSBenny Halevy if (unlikely(!p)) 5734c0eae66eSBenny Halevy goto out_overflow; 5735e78291e4SBenny Halevy 5736fc01cea9SAndy Adamson /* seqid */ 57376f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5738dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5739fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5740fc01cea9SAndy Adamson goto out_err; 5741fc01cea9SAndy Adamson } 5742fc01cea9SAndy Adamson /* slot id */ 57436f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5744df2fabffSTrond Myklebust if (dummy != res->sr_slot->slot_nr) { 5745fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5746fc01cea9SAndy Adamson goto out_err; 5747fc01cea9SAndy Adamson } 5748da0507b7STrond Myklebust /* highest slot id */ 5749da0507b7STrond Myklebust res->sr_highest_slotid = be32_to_cpup(p++); 5750464ee9f9STrond Myklebust /* target highest slot id */ 5751464ee9f9STrond Myklebust res->sr_target_highest_slotid = be32_to_cpup(p++); 57520629e370SAlexandros Batsakis /* result flags */ 57530629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5754fc01cea9SAndy Adamson status = 0; 5755fc01cea9SAndy Adamson out_err: 5756fc01cea9SAndy Adamson res->sr_status = status; 5757fc01cea9SAndy Adamson return status; 5758c0eae66eSBenny Halevy out_overflow: 5759c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5760c0eae66eSBenny Halevy status = -EIO; 5761c0eae66eSBenny Halevy goto out_err; 5762fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 57639b7b9fccSAndy Adamson return 0; 5764fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 57659b7b9fccSAndy Adamson } 57669b7b9fccSAndy Adamson 5767b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 57687f11d8d3SAndy Adamson /* 57697f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 57707f11d8d3SAndy Adamson */ 57717f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 57727f11d8d3SAndy Adamson struct pnfs_devicelist *res) 57737f11d8d3SAndy Adamson { 57747f11d8d3SAndy Adamson __be32 *p; 57757f11d8d3SAndy Adamson int status, i; 577698d94524STrond Myklebust nfs4_verifier verftemp; 57777f11d8d3SAndy Adamson 57787f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 57797f11d8d3SAndy Adamson if (status) 57807f11d8d3SAndy Adamson return status; 57817f11d8d3SAndy Adamson 57827f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 57837f11d8d3SAndy Adamson if (unlikely(!p)) 57847f11d8d3SAndy Adamson goto out_overflow; 57857f11d8d3SAndy Adamson 57867f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 57877f11d8d3SAndy Adamson p += 2; 57887f11d8d3SAndy Adamson 57897f11d8d3SAndy Adamson /* Read verifier */ 579098d94524STrond Myklebust p = xdr_decode_opaque_fixed(p, verftemp.data, NFS4_VERIFIER_SIZE); 57917f11d8d3SAndy Adamson 57927f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 57937f11d8d3SAndy Adamson 57947f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 57957f11d8d3SAndy Adamson 57967f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5797a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 57987f11d8d3SAndy Adamson __func__, res->num_devs); 57997f11d8d3SAndy Adamson return -EIO; 58007f11d8d3SAndy Adamson } 58017f11d8d3SAndy Adamson 58027f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 58037f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 58047f11d8d3SAndy Adamson if (unlikely(!p)) 58057f11d8d3SAndy Adamson goto out_overflow; 58067f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 58077f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 58087f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 58097f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 58107f11d8d3SAndy Adamson return 0; 58117f11d8d3SAndy Adamson out_overflow: 58127f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 58137f11d8d3SAndy Adamson return -EIO; 58147f11d8d3SAndy Adamson } 5815b1f69b75SAndy Adamson 5816b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5817b1f69b75SAndy Adamson struct pnfs_device *pdev) 5818b1f69b75SAndy Adamson { 5819b1f69b75SAndy Adamson __be32 *p; 5820b1f69b75SAndy Adamson uint32_t len, type; 5821b1f69b75SAndy Adamson int status; 5822b1f69b75SAndy Adamson 5823b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5824b1f69b75SAndy Adamson if (status) { 5825b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5826b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5827b1f69b75SAndy Adamson if (unlikely(!p)) 5828b1f69b75SAndy Adamson goto out_overflow; 5829b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5830b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5831b1f69b75SAndy Adamson __func__, pdev->mincount); 5832b1f69b75SAndy Adamson } 5833b1f69b75SAndy Adamson return status; 5834b1f69b75SAndy Adamson } 5835b1f69b75SAndy Adamson 5836b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5837b1f69b75SAndy Adamson if (unlikely(!p)) 5838b1f69b75SAndy Adamson goto out_overflow; 5839b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5840b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5841b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5842b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5843b1f69b75SAndy Adamson return -EINVAL; 5844b1f69b75SAndy Adamson } 5845b1f69b75SAndy Adamson /* 5846b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5847b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5848b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5849b1f69b75SAndy Adamson */ 5850b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 585113fe4ba1STrond Myklebust if (xdr_read_pages(xdr, pdev->mincount) != pdev->mincount) 585213fe4ba1STrond Myklebust goto out_overflow; 5853b1f69b75SAndy Adamson 5854b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5855b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5856b1f69b75SAndy Adamson if (unlikely(!p)) 5857b1f69b75SAndy Adamson goto out_overflow; 5858b1f69b75SAndy Adamson len = be32_to_cpup(p); 5859b1f69b75SAndy Adamson if (len) { 5860ead00597SChuck Lever uint32_t i; 5861b1f69b75SAndy Adamson 5862b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5863b1f69b75SAndy Adamson if (unlikely(!p)) 5864b1f69b75SAndy Adamson goto out_overflow; 5865b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5866b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5867b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5868b1f69b75SAndy Adamson __func__); 5869b1f69b75SAndy Adamson return -EIO; 5870b1f69b75SAndy Adamson } 5871b1f69b75SAndy Adamson } 5872b1f69b75SAndy Adamson } 5873b1f69b75SAndy Adamson return 0; 5874b1f69b75SAndy Adamson out_overflow: 5875b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5876b1f69b75SAndy Adamson return -EIO; 5877b1f69b75SAndy Adamson } 5878b1f69b75SAndy Adamson 5879b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5880b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5881b1f69b75SAndy Adamson { 5882b1f69b75SAndy Adamson __be32 *p; 5883b1f69b75SAndy Adamson int status; 5884b1f69b75SAndy Adamson u32 layout_count; 588564bd577eSTrond Myklebust u32 recvd; 5886b1f69b75SAndy Adamson 5887b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5888b1f69b75SAndy Adamson if (status) 5889b1f69b75SAndy Adamson return status; 5890ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5891b1f69b75SAndy Adamson if (unlikely(!p)) 5892b1f69b75SAndy Adamson goto out_overflow; 5893ea9d23f5STrond Myklebust res->return_on_close = be32_to_cpup(p); 5894ea9d23f5STrond Myklebust decode_stateid(xdr, &res->stateid); 5895ea9d23f5STrond Myklebust p = xdr_inline_decode(xdr, 4); 5896ea9d23f5STrond Myklebust if (unlikely(!p)) 5897ea9d23f5STrond Myklebust goto out_overflow; 5898b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5899b1f69b75SAndy Adamson if (!layout_count) { 5900b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5901b1f69b75SAndy Adamson __func__); 5902b1f69b75SAndy Adamson return -EINVAL; 5903b1f69b75SAndy Adamson } 5904b1f69b75SAndy Adamson 590535124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5906b1f69b75SAndy Adamson if (unlikely(!p)) 5907b1f69b75SAndy Adamson goto out_overflow; 5908b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5909b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5910b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5911b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 591235124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5913b1f69b75SAndy Adamson 5914b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5915b1f69b75SAndy Adamson __func__, 5916b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5917b1f69b75SAndy Adamson (unsigned long)res->range.length, 5918b1f69b75SAndy Adamson res->range.iomode, 5919b1f69b75SAndy Adamson res->type, 592035124a09SWeston Andros Adamson res->layoutp->len); 5921b1f69b75SAndy Adamson 592264bd577eSTrond Myklebust recvd = xdr_read_pages(xdr, res->layoutp->len); 592335124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 592435124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 592535124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 592635124a09SWeston Andros Adamson res->layoutp->len, recvd); 592735124a09SWeston Andros Adamson return -EINVAL; 592835124a09SWeston Andros Adamson } 592935124a09SWeston Andros Adamson 5930b1f69b75SAndy Adamson if (layout_count > 1) { 5931b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5932b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5933b1f69b75SAndy Adamson * the client may see a response that is less than the 5934b1f69b75SAndy Adamson * minimum it requested. 5935b1f69b75SAndy Adamson */ 5936b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5937b1f69b75SAndy Adamson __func__, layout_count); 5938b1f69b75SAndy Adamson } 5939b1f69b75SAndy Adamson 5940b1f69b75SAndy Adamson return 0; 5941b1f69b75SAndy Adamson out_overflow: 5942b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5943b1f69b75SAndy Adamson return -EIO; 5944b1f69b75SAndy Adamson } 5945863a3c6cSAndy Adamson 5946cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5947cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5948cbe82603SBenny Halevy { 5949cbe82603SBenny Halevy __be32 *p; 5950cbe82603SBenny Halevy int status; 5951cbe82603SBenny Halevy 5952cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5953cbe82603SBenny Halevy if (status) 5954cbe82603SBenny Halevy return status; 5955cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5956cbe82603SBenny Halevy if (unlikely(!p)) 5957cbe82603SBenny Halevy goto out_overflow; 5958cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5959cbe82603SBenny Halevy if (res->lrs_present) 5960cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5961cbe82603SBenny Halevy return status; 5962cbe82603SBenny Halevy out_overflow: 5963cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5964cbe82603SBenny Halevy return -EIO; 5965cbe82603SBenny Halevy } 5966cbe82603SBenny Halevy 5967863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5968863a3c6cSAndy Adamson struct rpc_rqst *req, 5969863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5970863a3c6cSAndy Adamson { 5971863a3c6cSAndy Adamson __be32 *p; 5972863a3c6cSAndy Adamson __u32 sizechanged; 5973863a3c6cSAndy Adamson int status; 5974863a3c6cSAndy Adamson 5975863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5976db29c089SAndy Adamson res->status = status; 5977863a3c6cSAndy Adamson if (status) 5978863a3c6cSAndy Adamson return status; 5979863a3c6cSAndy Adamson 5980863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5981863a3c6cSAndy Adamson if (unlikely(!p)) 5982863a3c6cSAndy Adamson goto out_overflow; 5983863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5984863a3c6cSAndy Adamson 5985863a3c6cSAndy Adamson if (sizechanged) { 5986863a3c6cSAndy Adamson /* throw away new size */ 5987863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5988863a3c6cSAndy Adamson if (unlikely(!p)) 5989863a3c6cSAndy Adamson goto out_overflow; 5990863a3c6cSAndy Adamson } 5991863a3c6cSAndy Adamson return 0; 5992863a3c6cSAndy Adamson out_overflow: 5993863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5994863a3c6cSAndy Adamson return -EIO; 5995863a3c6cSAndy Adamson } 59967d974794SBryan Schumaker 59977d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 59987d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 59997d974794SBryan Schumaker { 60007d974794SBryan Schumaker __be32 *p; 60017d974794SBryan Schumaker int status; 60027d974794SBryan Schumaker int num_res; 60037d974794SBryan Schumaker 60047d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 60057d974794SBryan Schumaker if (status) 60067d974794SBryan Schumaker return status; 60077d974794SBryan Schumaker 60087d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60097d974794SBryan Schumaker if (unlikely(!p)) 60107d974794SBryan Schumaker goto out_overflow; 60117d974794SBryan Schumaker num_res = be32_to_cpup(p++); 60127d974794SBryan Schumaker if (num_res != 1) 60137d974794SBryan Schumaker goto out; 60147d974794SBryan Schumaker 60157d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 60167d974794SBryan Schumaker if (unlikely(!p)) 60177d974794SBryan Schumaker goto out_overflow; 60187d974794SBryan Schumaker res->status = be32_to_cpup(p++); 60191cab0652SBryan Schumaker 60201cab0652SBryan Schumaker return status; 60217d974794SBryan Schumaker out_overflow: 60227d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 60237d974794SBryan Schumaker out: 60247d974794SBryan Schumaker return -EIO; 60257d974794SBryan Schumaker } 60269aeda35fSBryan Schumaker 60279aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 60289aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 60299aeda35fSBryan Schumaker { 60309f79fb48SAndy Adamson res->status = decode_op_hdr(xdr, OP_FREE_STATEID); 60319aeda35fSBryan Schumaker return res->status; 60329aeda35fSBryan Schumaker } 6033b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 6034b1f69b75SAndy Adamson 60351da177e4SLinus Torvalds /* 603649c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 603749c2559eSBenny Halevy */ 603849c2559eSBenny Halevy 603949c2559eSBenny Halevy /* 60401da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 60411da177e4SLinus Torvalds */ 6042bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 6043bf269551SChuck Lever struct xdr_stream *xdr, 6044bf269551SChuck Lever struct nfs_closeres *res) 60451da177e4SLinus Torvalds { 60461da177e4SLinus Torvalds struct compound_hdr hdr; 60471da177e4SLinus Torvalds int status; 60481da177e4SLinus Torvalds 6049bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60501da177e4SLinus Torvalds if (status) 60511da177e4SLinus Torvalds goto out; 6052bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60539b7b9fccSAndy Adamson if (status) 60549b7b9fccSAndy Adamson goto out; 6055bf269551SChuck Lever status = decode_putfh(xdr); 60561da177e4SLinus Torvalds if (status) 60571da177e4SLinus Torvalds goto out; 6058bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 6059516a6af6STrond Myklebust if (status != 0) 6060516a6af6STrond Myklebust goto out; 60616926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60621da177e4SLinus Torvalds out: 60631da177e4SLinus Torvalds return status; 60641da177e4SLinus Torvalds } 60651da177e4SLinus Torvalds 60661da177e4SLinus Torvalds /* 60671da177e4SLinus Torvalds * Decode ACCESS response 60681da177e4SLinus Torvalds */ 6069bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6070bf269551SChuck Lever struct nfs4_accessres *res) 60711da177e4SLinus Torvalds { 60721da177e4SLinus Torvalds struct compound_hdr hdr; 60731da177e4SLinus Torvalds int status; 60741da177e4SLinus Torvalds 6075bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60769b7b9fccSAndy Adamson if (status) 60779b7b9fccSAndy Adamson goto out; 6078bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60799b7b9fccSAndy Adamson if (status) 60801da177e4SLinus Torvalds goto out; 6081bf269551SChuck Lever status = decode_putfh(xdr); 608276b32999STrond Myklebust if (status != 0) 608376b32999STrond Myklebust goto out; 60846168f62cSWeston Andros Adamson status = decode_access(xdr, &res->supported, &res->access); 608576b32999STrond Myklebust if (status != 0) 608676b32999STrond Myklebust goto out; 60876926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60881da177e4SLinus Torvalds out: 60891da177e4SLinus Torvalds return status; 60901da177e4SLinus Torvalds } 60911da177e4SLinus Torvalds 60921da177e4SLinus Torvalds /* 60931da177e4SLinus Torvalds * Decode LOOKUP response 60941da177e4SLinus Torvalds */ 6095bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6096bf269551SChuck Lever struct nfs4_lookup_res *res) 60971da177e4SLinus Torvalds { 60981da177e4SLinus Torvalds struct compound_hdr hdr; 60991da177e4SLinus Torvalds int status; 61001da177e4SLinus Torvalds 6101bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61029b7b9fccSAndy Adamson if (status) 61039b7b9fccSAndy Adamson goto out; 6104bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61059b7b9fccSAndy Adamson if (status) 61061da177e4SLinus Torvalds goto out; 6107bf269551SChuck Lever status = decode_putfh(xdr); 6108bf269551SChuck Lever if (status) 61091da177e4SLinus Torvalds goto out; 6110bf269551SChuck Lever status = decode_lookup(xdr); 6111bf269551SChuck Lever if (status) 61121da177e4SLinus Torvalds goto out; 6113bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6114bf269551SChuck Lever if (status) 61151da177e4SLinus Torvalds goto out; 6116aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 61171da177e4SLinus Torvalds out: 61181da177e4SLinus Torvalds return status; 61191da177e4SLinus Torvalds } 61201da177e4SLinus Torvalds 61211da177e4SLinus Torvalds /* 61221da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 61231da177e4SLinus Torvalds */ 6124bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 6125bf269551SChuck Lever struct xdr_stream *xdr, 6126bf269551SChuck Lever struct nfs4_lookup_res *res) 61271da177e4SLinus Torvalds { 61281da177e4SLinus Torvalds struct compound_hdr hdr; 61291da177e4SLinus Torvalds int status; 61301da177e4SLinus Torvalds 6131bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61329b7b9fccSAndy Adamson if (status) 61339b7b9fccSAndy Adamson goto out; 6134bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61359b7b9fccSAndy Adamson if (status) 61361da177e4SLinus Torvalds goto out; 6137bf269551SChuck Lever status = decode_putrootfh(xdr); 6138bf269551SChuck Lever if (status) 61391da177e4SLinus Torvalds goto out; 6140bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6141bf269551SChuck Lever if (status == 0) 6142aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, 6143aa9c2669SDavid Quigley res->label, res->server); 61441da177e4SLinus Torvalds out: 61451da177e4SLinus Torvalds return status; 61461da177e4SLinus Torvalds } 61471da177e4SLinus Torvalds 61481da177e4SLinus Torvalds /* 61491da177e4SLinus Torvalds * Decode REMOVE response 61501da177e4SLinus Torvalds */ 6151bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6152bf269551SChuck Lever struct nfs_removeres *res) 61531da177e4SLinus Torvalds { 61541da177e4SLinus Torvalds struct compound_hdr hdr; 61551da177e4SLinus Torvalds int status; 61561da177e4SLinus Torvalds 6157bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61589b7b9fccSAndy Adamson if (status) 61599b7b9fccSAndy Adamson goto out; 6160bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61619b7b9fccSAndy Adamson if (status) 61621da177e4SLinus Torvalds goto out; 6163bf269551SChuck Lever status = decode_putfh(xdr); 6164bf269551SChuck Lever if (status) 616516e42959STrond Myklebust goto out; 6166bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 61671da177e4SLinus Torvalds out: 61681da177e4SLinus Torvalds return status; 61691da177e4SLinus Torvalds } 61701da177e4SLinus Torvalds 61711da177e4SLinus Torvalds /* 61721da177e4SLinus Torvalds * Decode RENAME response 61731da177e4SLinus Torvalds */ 6174bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6175bf269551SChuck Lever struct nfs_renameres *res) 61761da177e4SLinus Torvalds { 61771da177e4SLinus Torvalds struct compound_hdr hdr; 61781da177e4SLinus Torvalds int status; 61791da177e4SLinus Torvalds 6180bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61819b7b9fccSAndy Adamson if (status) 61829b7b9fccSAndy Adamson goto out; 6183bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61849b7b9fccSAndy Adamson if (status) 61851da177e4SLinus Torvalds goto out; 6186bf269551SChuck Lever status = decode_putfh(xdr); 6187bf269551SChuck Lever if (status) 61881da177e4SLinus Torvalds goto out; 6189bf269551SChuck Lever status = decode_savefh(xdr); 6190bf269551SChuck Lever if (status) 61911da177e4SLinus Torvalds goto out; 6192bf269551SChuck Lever status = decode_putfh(xdr); 6193bf269551SChuck Lever if (status) 61941da177e4SLinus Torvalds goto out; 6195bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 61961da177e4SLinus Torvalds out: 61971da177e4SLinus Torvalds return status; 61981da177e4SLinus Torvalds } 61991da177e4SLinus Torvalds 62001da177e4SLinus Torvalds /* 62011da177e4SLinus Torvalds * Decode LINK response 62021da177e4SLinus Torvalds */ 6203bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6204bf269551SChuck Lever struct nfs4_link_res *res) 62051da177e4SLinus Torvalds { 62061da177e4SLinus Torvalds struct compound_hdr hdr; 62071da177e4SLinus Torvalds int status; 62081da177e4SLinus Torvalds 6209bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62109b7b9fccSAndy Adamson if (status) 62119b7b9fccSAndy Adamson goto out; 6212bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62139b7b9fccSAndy Adamson if (status) 62141da177e4SLinus Torvalds goto out; 6215bf269551SChuck Lever status = decode_putfh(xdr); 6216bf269551SChuck Lever if (status) 62171da177e4SLinus Torvalds goto out; 6218bf269551SChuck Lever status = decode_savefh(xdr); 6219bf269551SChuck Lever if (status) 62201da177e4SLinus Torvalds goto out; 6221bf269551SChuck Lever status = decode_putfh(xdr); 6222bf269551SChuck Lever if (status) 62231da177e4SLinus Torvalds goto out; 6224bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 6225bf269551SChuck Lever if (status) 622691ba2eeeSTrond Myklebust goto out; 622791ba2eeeSTrond Myklebust /* 622891ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 622991ba2eeeSTrond Myklebust * filehandle. 623091ba2eeeSTrond Myklebust */ 6231bf269551SChuck Lever status = decode_restorefh(xdr); 6232bf269551SChuck Lever if (status) 623391ba2eeeSTrond Myklebust goto out; 6234aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62351da177e4SLinus Torvalds out: 62361da177e4SLinus Torvalds return status; 62371da177e4SLinus Torvalds } 62381da177e4SLinus Torvalds 62391da177e4SLinus Torvalds /* 62401da177e4SLinus Torvalds * Decode CREATE response 62411da177e4SLinus Torvalds */ 6242bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6243bf269551SChuck Lever struct nfs4_create_res *res) 62441da177e4SLinus Torvalds { 62451da177e4SLinus Torvalds struct compound_hdr hdr; 62461da177e4SLinus Torvalds int status; 62471da177e4SLinus Torvalds 6248bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62499b7b9fccSAndy Adamson if (status) 62509b7b9fccSAndy Adamson goto out; 6251bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62529b7b9fccSAndy Adamson if (status) 62531da177e4SLinus Torvalds goto out; 6254bf269551SChuck Lever status = decode_putfh(xdr); 6255bf269551SChuck Lever if (status) 62561da177e4SLinus Torvalds goto out; 6257bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 6258bf269551SChuck Lever if (status) 62591da177e4SLinus Torvalds goto out; 6260bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 6261bf269551SChuck Lever if (status) 62621da177e4SLinus Torvalds goto out; 6263aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62641da177e4SLinus Torvalds out: 62651da177e4SLinus Torvalds return status; 62661da177e4SLinus Torvalds } 62671da177e4SLinus Torvalds 62681da177e4SLinus Torvalds /* 62691da177e4SLinus Torvalds * Decode SYMLINK response 62701da177e4SLinus Torvalds */ 6271bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6272bf269551SChuck Lever struct nfs4_create_res *res) 62731da177e4SLinus Torvalds { 6274bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 62751da177e4SLinus Torvalds } 62761da177e4SLinus Torvalds 62771da177e4SLinus Torvalds /* 62781da177e4SLinus Torvalds * Decode GETATTR response 62791da177e4SLinus Torvalds */ 6280bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6281bf269551SChuck Lever struct nfs4_getattr_res *res) 62821da177e4SLinus Torvalds { 62831da177e4SLinus Torvalds struct compound_hdr hdr; 62841da177e4SLinus Torvalds int status; 62851da177e4SLinus Torvalds 6286bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62871da177e4SLinus Torvalds if (status) 62881da177e4SLinus Torvalds goto out; 6289bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62909b7b9fccSAndy Adamson if (status) 62919b7b9fccSAndy Adamson goto out; 6292bf269551SChuck Lever status = decode_putfh(xdr); 62931da177e4SLinus Torvalds if (status) 62941da177e4SLinus Torvalds goto out; 6295aa9c2669SDavid Quigley status = decode_getfattr_label(xdr, res->fattr, res->label, res->server); 62961da177e4SLinus Torvalds out: 62971da177e4SLinus Torvalds return status; 62981da177e4SLinus Torvalds } 62991da177e4SLinus Torvalds 630023ec6965SJ. Bruce Fields /* 630123ec6965SJ. Bruce Fields * Encode an SETACL request 630223ec6965SJ. Bruce Fields */ 63039f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 63049f06c719SChuck Lever struct nfs_setaclargs *args) 630523ec6965SJ. Bruce Fields { 630623ec6965SJ. Bruce Fields struct compound_hdr hdr = { 630766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 630823ec6965SJ. Bruce Fields }; 630923ec6965SJ. Bruce Fields 63109f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 63119f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 63129f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 63139f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6314d017931cSAndy Adamson encode_nops(&hdr); 631523ec6965SJ. Bruce Fields } 631605d564feSAndy Adamson 631723ec6965SJ. Bruce Fields /* 631823ec6965SJ. Bruce Fields * Decode SETACL response 631923ec6965SJ. Bruce Fields */ 632023ec6965SJ. Bruce Fields static int 6321bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 632273c403a9SBenny Halevy struct nfs_setaclres *res) 632323ec6965SJ. Bruce Fields { 632423ec6965SJ. Bruce Fields struct compound_hdr hdr; 632523ec6965SJ. Bruce Fields int status; 632623ec6965SJ. Bruce Fields 6327bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 632823ec6965SJ. Bruce Fields if (status) 632923ec6965SJ. Bruce Fields goto out; 6330bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63319b7b9fccSAndy Adamson if (status) 63329b7b9fccSAndy Adamson goto out; 6333bf269551SChuck Lever status = decode_putfh(xdr); 633423ec6965SJ. Bruce Fields if (status) 633523ec6965SJ. Bruce Fields goto out; 6336bf269551SChuck Lever status = decode_setattr(xdr); 633723ec6965SJ. Bruce Fields out: 633823ec6965SJ. Bruce Fields return status; 633923ec6965SJ. Bruce Fields } 63401da177e4SLinus Torvalds 63411da177e4SLinus Torvalds /* 6342029d105eSJ. Bruce Fields * Decode GETACL response 6343029d105eSJ. Bruce Fields */ 6344029d105eSJ. Bruce Fields static int 6345bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6346663c79b3SBenny Halevy struct nfs_getaclres *res) 6347029d105eSJ. Bruce Fields { 6348029d105eSJ. Bruce Fields struct compound_hdr hdr; 6349029d105eSJ. Bruce Fields int status; 6350029d105eSJ. Bruce Fields 6351331818f1STrond Myklebust if (res->acl_scratch != NULL) { 6352331818f1STrond Myklebust void *p = page_address(res->acl_scratch); 6353331818f1STrond Myklebust xdr_set_scratch_buffer(xdr, p, PAGE_SIZE); 6354331818f1STrond Myklebust } 6355bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6356029d105eSJ. Bruce Fields if (status) 6357029d105eSJ. Bruce Fields goto out; 6358bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63599b7b9fccSAndy Adamson if (status) 63609b7b9fccSAndy Adamson goto out; 6361bf269551SChuck Lever status = decode_putfh(xdr); 6362029d105eSJ. Bruce Fields if (status) 6363029d105eSJ. Bruce Fields goto out; 6364bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6365029d105eSJ. Bruce Fields 6366029d105eSJ. Bruce Fields out: 6367029d105eSJ. Bruce Fields return status; 6368029d105eSJ. Bruce Fields } 6369029d105eSJ. Bruce Fields 6370029d105eSJ. Bruce Fields /* 63711da177e4SLinus Torvalds * Decode CLOSE response 63721da177e4SLinus Torvalds */ 6373bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6374bf269551SChuck Lever struct nfs_closeres *res) 63751da177e4SLinus Torvalds { 63761da177e4SLinus Torvalds struct compound_hdr hdr; 63771da177e4SLinus Torvalds int status; 63781da177e4SLinus Torvalds 6379bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63801da177e4SLinus Torvalds if (status) 63811da177e4SLinus Torvalds goto out; 6382bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63839b7b9fccSAndy Adamson if (status) 63849b7b9fccSAndy Adamson goto out; 6385bf269551SChuck Lever status = decode_putfh(xdr); 63861da177e4SLinus Torvalds if (status) 63871da177e4SLinus Torvalds goto out; 6388bf269551SChuck Lever status = decode_close(xdr, res); 6389516a6af6STrond Myklebust if (status != 0) 6390516a6af6STrond Myklebust goto out; 6391516a6af6STrond Myklebust /* 6392516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6393516a6af6STrond Myklebust * in which case the getattr call will fail with 6394516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6395516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6396516a6af6STrond Myklebust */ 63976926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63981da177e4SLinus Torvalds out: 63991da177e4SLinus Torvalds return status; 64001da177e4SLinus Torvalds } 64011da177e4SLinus Torvalds 64021da177e4SLinus Torvalds /* 64031da177e4SLinus Torvalds * Decode OPEN response 64041da177e4SLinus Torvalds */ 6405bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6406bf269551SChuck Lever struct nfs_openres *res) 64071da177e4SLinus Torvalds { 64081da177e4SLinus Torvalds struct compound_hdr hdr; 64091da177e4SLinus Torvalds int status; 64101da177e4SLinus Torvalds 6411bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64121da177e4SLinus Torvalds if (status) 64131da177e4SLinus Torvalds goto out; 6414bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64159b7b9fccSAndy Adamson if (status) 64169b7b9fccSAndy Adamson goto out; 6417bf269551SChuck Lever status = decode_putfh(xdr); 64181da177e4SLinus Torvalds if (status) 64191da177e4SLinus Torvalds goto out; 6420bf269551SChuck Lever status = decode_open(xdr, res); 64211da177e4SLinus Torvalds if (status) 64221da177e4SLinus Torvalds goto out; 642301913b49SWeston Andros Adamson status = decode_getfh(xdr, &res->fh); 642401913b49SWeston Andros Adamson if (status) 64251da177e4SLinus Torvalds goto out; 6426ae2bb032SWeston Andros Adamson if (res->access_request) 64276168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 6428aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->f_attr, res->f_label, res->server); 64291da177e4SLinus Torvalds out: 64301da177e4SLinus Torvalds return status; 64311da177e4SLinus Torvalds } 64321da177e4SLinus Torvalds 64331da177e4SLinus Torvalds /* 64341da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 64351da177e4SLinus Torvalds */ 6436bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6437bf269551SChuck Lever struct xdr_stream *xdr, 6438bf269551SChuck Lever struct nfs_open_confirmres *res) 64391da177e4SLinus Torvalds { 64401da177e4SLinus Torvalds struct compound_hdr hdr; 64411da177e4SLinus Torvalds int status; 64421da177e4SLinus Torvalds 6443bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64441da177e4SLinus Torvalds if (status) 64451da177e4SLinus Torvalds goto out; 6446bf269551SChuck Lever status = decode_putfh(xdr); 64471da177e4SLinus Torvalds if (status) 64481da177e4SLinus Torvalds goto out; 6449bf269551SChuck Lever status = decode_open_confirm(xdr, res); 64501da177e4SLinus Torvalds out: 64511da177e4SLinus Torvalds return status; 64521da177e4SLinus Torvalds } 64531da177e4SLinus Torvalds 64541da177e4SLinus Torvalds /* 64551da177e4SLinus Torvalds * Decode OPEN response 64561da177e4SLinus Torvalds */ 6457bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6458bf269551SChuck Lever struct xdr_stream *xdr, 6459bf269551SChuck Lever struct nfs_openres *res) 64601da177e4SLinus Torvalds { 64611da177e4SLinus Torvalds struct compound_hdr hdr; 64621da177e4SLinus Torvalds int status; 64631da177e4SLinus Torvalds 6464bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64651da177e4SLinus Torvalds if (status) 64661da177e4SLinus Torvalds goto out; 6467bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64689b7b9fccSAndy Adamson if (status) 64699b7b9fccSAndy Adamson goto out; 6470bf269551SChuck Lever status = decode_putfh(xdr); 64711da177e4SLinus Torvalds if (status) 64721da177e4SLinus Torvalds goto out; 6473bf269551SChuck Lever status = decode_open(xdr, res); 6474864472e9STrond Myklebust if (status) 6475864472e9STrond Myklebust goto out; 6476ae2bb032SWeston Andros Adamson if (res->access_request) 64776168f62cSWeston Andros Adamson decode_access(xdr, &res->access_supported, &res->access_result); 64786926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 64791da177e4SLinus Torvalds out: 64801da177e4SLinus Torvalds return status; 64811da177e4SLinus Torvalds } 64821da177e4SLinus Torvalds 64831da177e4SLinus Torvalds /* 64841da177e4SLinus Torvalds * Decode SETATTR response 64851da177e4SLinus Torvalds */ 6486bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6487bf269551SChuck Lever struct xdr_stream *xdr, 6488bf269551SChuck Lever struct nfs_setattrres *res) 64891da177e4SLinus Torvalds { 64901da177e4SLinus Torvalds struct compound_hdr hdr; 64911da177e4SLinus Torvalds int status; 64921da177e4SLinus Torvalds 6493bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64941da177e4SLinus Torvalds if (status) 64951da177e4SLinus Torvalds goto out; 6496bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64979b7b9fccSAndy Adamson if (status) 64989b7b9fccSAndy Adamson goto out; 6499bf269551SChuck Lever status = decode_putfh(xdr); 65001da177e4SLinus Torvalds if (status) 65011da177e4SLinus Torvalds goto out; 6502bf269551SChuck Lever status = decode_setattr(xdr); 65031da177e4SLinus Torvalds if (status) 65041da177e4SLinus Torvalds goto out; 6505aa9c2669SDavid Quigley decode_getfattr_label(xdr, res->fattr, res->label, res->server); 65061da177e4SLinus Torvalds out: 65071da177e4SLinus Torvalds return status; 65081da177e4SLinus Torvalds } 65091da177e4SLinus Torvalds 65101da177e4SLinus Torvalds /* 65111da177e4SLinus Torvalds * Decode LOCK response 65121da177e4SLinus Torvalds */ 6513bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6514bf269551SChuck Lever struct nfs_lock_res *res) 65151da177e4SLinus Torvalds { 65161da177e4SLinus Torvalds struct compound_hdr hdr; 65171da177e4SLinus Torvalds int status; 65181da177e4SLinus Torvalds 6519bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65201da177e4SLinus Torvalds if (status) 65211da177e4SLinus Torvalds goto out; 6522bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65239b7b9fccSAndy Adamson if (status) 65249b7b9fccSAndy Adamson goto out; 6525bf269551SChuck Lever status = decode_putfh(xdr); 65261da177e4SLinus Torvalds if (status) 65271da177e4SLinus Torvalds goto out; 6528bf269551SChuck Lever status = decode_lock(xdr, res); 65291da177e4SLinus Torvalds out: 65301da177e4SLinus Torvalds return status; 65311da177e4SLinus Torvalds } 65321da177e4SLinus Torvalds 65331da177e4SLinus Torvalds /* 65341da177e4SLinus Torvalds * Decode LOCKT response 65351da177e4SLinus Torvalds */ 6536bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6537bf269551SChuck Lever struct nfs_lockt_res *res) 65381da177e4SLinus Torvalds { 65391da177e4SLinus Torvalds struct compound_hdr hdr; 65401da177e4SLinus Torvalds int status; 65411da177e4SLinus Torvalds 6542bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65431da177e4SLinus Torvalds if (status) 65441da177e4SLinus Torvalds goto out; 6545bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65469b7b9fccSAndy Adamson if (status) 65479b7b9fccSAndy Adamson goto out; 6548bf269551SChuck Lever status = decode_putfh(xdr); 65491da177e4SLinus Torvalds if (status) 65501da177e4SLinus Torvalds goto out; 6551bf269551SChuck Lever status = decode_lockt(xdr, res); 65521da177e4SLinus Torvalds out: 65531da177e4SLinus Torvalds return status; 65541da177e4SLinus Torvalds } 65551da177e4SLinus Torvalds 65561da177e4SLinus Torvalds /* 65571da177e4SLinus Torvalds * Decode LOCKU response 65581da177e4SLinus Torvalds */ 6559bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6560bf269551SChuck Lever struct nfs_locku_res *res) 65611da177e4SLinus Torvalds { 65621da177e4SLinus Torvalds struct compound_hdr hdr; 65631da177e4SLinus Torvalds int status; 65641da177e4SLinus Torvalds 6565bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65661da177e4SLinus Torvalds if (status) 65671da177e4SLinus Torvalds goto out; 6568bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65699b7b9fccSAndy Adamson if (status) 65709b7b9fccSAndy Adamson goto out; 6571bf269551SChuck Lever status = decode_putfh(xdr); 65721da177e4SLinus Torvalds if (status) 65731da177e4SLinus Torvalds goto out; 6574bf269551SChuck Lever status = decode_locku(xdr, res); 65751da177e4SLinus Torvalds out: 65761da177e4SLinus Torvalds return status; 65771da177e4SLinus Torvalds } 65781da177e4SLinus Torvalds 6579bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6580bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6581d3c7b7ccSTrond Myklebust { 6582d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6583d3c7b7ccSTrond Myklebust int status; 6584d3c7b7ccSTrond Myklebust 6585bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6586d3c7b7ccSTrond Myklebust if (!status) 6587bf269551SChuck Lever status = decode_release_lockowner(xdr); 6588d3c7b7ccSTrond Myklebust return status; 6589d3c7b7ccSTrond Myklebust } 6590d3c7b7ccSTrond Myklebust 65911da177e4SLinus Torvalds /* 65921da177e4SLinus Torvalds * Decode READLINK response 65931da177e4SLinus Torvalds */ 6594bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6595bf269551SChuck Lever struct xdr_stream *xdr, 6596f50c7000SBenny Halevy struct nfs4_readlink_res *res) 65971da177e4SLinus Torvalds { 65981da177e4SLinus Torvalds struct compound_hdr hdr; 65991da177e4SLinus Torvalds int status; 66001da177e4SLinus Torvalds 6601bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66021da177e4SLinus Torvalds if (status) 66031da177e4SLinus Torvalds goto out; 6604bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66059b7b9fccSAndy Adamson if (status) 66069b7b9fccSAndy Adamson goto out; 6607bf269551SChuck Lever status = decode_putfh(xdr); 66081da177e4SLinus Torvalds if (status) 66091da177e4SLinus Torvalds goto out; 6610bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 66111da177e4SLinus Torvalds out: 66121da177e4SLinus Torvalds return status; 66131da177e4SLinus Torvalds } 66141da177e4SLinus Torvalds 66151da177e4SLinus Torvalds /* 66161da177e4SLinus Torvalds * Decode READDIR response 66171da177e4SLinus Torvalds */ 6618bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6619bf269551SChuck Lever struct nfs4_readdir_res *res) 66201da177e4SLinus Torvalds { 66211da177e4SLinus Torvalds struct compound_hdr hdr; 66221da177e4SLinus Torvalds int status; 66231da177e4SLinus Torvalds 6624bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66251da177e4SLinus Torvalds if (status) 66261da177e4SLinus Torvalds goto out; 6627bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66289b7b9fccSAndy Adamson if (status) 66299b7b9fccSAndy Adamson goto out; 6630bf269551SChuck Lever status = decode_putfh(xdr); 66311da177e4SLinus Torvalds if (status) 66321da177e4SLinus Torvalds goto out; 6633bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 66341da177e4SLinus Torvalds out: 66351da177e4SLinus Torvalds return status; 66361da177e4SLinus Torvalds } 66371da177e4SLinus Torvalds 66381da177e4SLinus Torvalds /* 66391da177e4SLinus Torvalds * Decode Read response 66401da177e4SLinus Torvalds */ 6641bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 66429137bdf3SAnna Schumaker struct nfs_pgio_res *res) 66431da177e4SLinus Torvalds { 66441da177e4SLinus Torvalds struct compound_hdr hdr; 66451da177e4SLinus Torvalds int status; 66461da177e4SLinus Torvalds 6647bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66481da177e4SLinus Torvalds if (status) 66491da177e4SLinus Torvalds goto out; 6650bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66519b7b9fccSAndy Adamson if (status) 66529b7b9fccSAndy Adamson goto out; 6653bf269551SChuck Lever status = decode_putfh(xdr); 66541da177e4SLinus Torvalds if (status) 66551da177e4SLinus Torvalds goto out; 6656bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 66571da177e4SLinus Torvalds if (!status) 66581da177e4SLinus Torvalds status = res->count; 66591da177e4SLinus Torvalds out: 66601da177e4SLinus Torvalds return status; 66611da177e4SLinus Torvalds } 66621da177e4SLinus Torvalds 66631da177e4SLinus Torvalds /* 66641da177e4SLinus Torvalds * Decode WRITE response 66651da177e4SLinus Torvalds */ 6666bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 66679137bdf3SAnna Schumaker struct nfs_pgio_res *res) 66681da177e4SLinus Torvalds { 66691da177e4SLinus Torvalds struct compound_hdr hdr; 66701da177e4SLinus Torvalds int status; 66711da177e4SLinus Torvalds 6672bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66731da177e4SLinus Torvalds if (status) 66741da177e4SLinus Torvalds goto out; 6675bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 66769b7b9fccSAndy Adamson if (status) 66779b7b9fccSAndy Adamson goto out; 6678bf269551SChuck Lever status = decode_putfh(xdr); 66791da177e4SLinus Torvalds if (status) 66801da177e4SLinus Torvalds goto out; 6681bf269551SChuck Lever status = decode_write(xdr, res); 66824f9838c7STrond Myklebust if (status) 66834f9838c7STrond Myklebust goto out; 66847ffd1064SFred Isaman if (res->fattr) 66856926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 66861da177e4SLinus Torvalds if (!status) 66871da177e4SLinus Torvalds status = res->count; 66881da177e4SLinus Torvalds out: 66891da177e4SLinus Torvalds return status; 66901da177e4SLinus Torvalds } 66911da177e4SLinus Torvalds 66921da177e4SLinus Torvalds /* 66931da177e4SLinus Torvalds * Decode COMMIT response 66941da177e4SLinus Torvalds */ 6695bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 66960b7c0153SFred Isaman struct nfs_commitres *res) 66971da177e4SLinus Torvalds { 66981da177e4SLinus Torvalds struct compound_hdr hdr; 66991da177e4SLinus Torvalds int status; 67001da177e4SLinus Torvalds 6701bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67021da177e4SLinus Torvalds if (status) 67031da177e4SLinus Torvalds goto out; 6704bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 67059b7b9fccSAndy Adamson if (status) 67069b7b9fccSAndy Adamson goto out; 6707bf269551SChuck Lever status = decode_putfh(xdr); 67081da177e4SLinus Torvalds if (status) 67091da177e4SLinus Torvalds goto out; 6710bf269551SChuck Lever status = decode_commit(xdr, res); 67111da177e4SLinus Torvalds out: 67121da177e4SLinus Torvalds return status; 67131da177e4SLinus Torvalds } 67141da177e4SLinus Torvalds 67151da177e4SLinus Torvalds /* 67168b173218SRicardo Labiaga * Decode FSINFO response 67171da177e4SLinus Torvalds */ 6718bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 67193dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 67201da177e4SLinus Torvalds { 67211da177e4SLinus Torvalds struct compound_hdr hdr; 67221da177e4SLinus Torvalds int status; 67231da177e4SLinus Torvalds 6724bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67251da177e4SLinus Torvalds if (!status) 6726bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67279b7b9fccSAndy Adamson if (!status) 6728bf269551SChuck Lever status = decode_putfh(xdr); 67291da177e4SLinus Torvalds if (!status) 6730bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 67311da177e4SLinus Torvalds return status; 67321da177e4SLinus Torvalds } 67331da177e4SLinus Torvalds 67341da177e4SLinus Torvalds /* 67358b173218SRicardo Labiaga * Decode PATHCONF response 67361da177e4SLinus Torvalds */ 6737bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6738d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 67391da177e4SLinus Torvalds { 67401da177e4SLinus Torvalds struct compound_hdr hdr; 67411da177e4SLinus Torvalds int status; 67421da177e4SLinus Torvalds 6743bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67441da177e4SLinus Torvalds if (!status) 6745bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67469b7b9fccSAndy Adamson if (!status) 6747bf269551SChuck Lever status = decode_putfh(xdr); 67481da177e4SLinus Torvalds if (!status) 6749bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 67501da177e4SLinus Torvalds return status; 67511da177e4SLinus Torvalds } 67521da177e4SLinus Torvalds 67531da177e4SLinus Torvalds /* 67548b173218SRicardo Labiaga * Decode STATFS response 67551da177e4SLinus Torvalds */ 6756bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 675724ad148aSBenny Halevy struct nfs4_statfs_res *res) 67581da177e4SLinus Torvalds { 67591da177e4SLinus Torvalds struct compound_hdr hdr; 67601da177e4SLinus Torvalds int status; 67611da177e4SLinus Torvalds 6762bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67631da177e4SLinus Torvalds if (!status) 6764bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67659b7b9fccSAndy Adamson if (!status) 6766bf269551SChuck Lever status = decode_putfh(xdr); 67671da177e4SLinus Torvalds if (!status) 6768bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 67691da177e4SLinus Torvalds return status; 67701da177e4SLinus Torvalds } 67711da177e4SLinus Torvalds 67721da177e4SLinus Torvalds /* 67738b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 67741da177e4SLinus Torvalds */ 6775bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6776bf269551SChuck Lever struct xdr_stream *xdr, 6777bf269551SChuck Lever struct nfs4_server_caps_res *res) 67781da177e4SLinus Torvalds { 67791da177e4SLinus Torvalds struct compound_hdr hdr; 67801da177e4SLinus Torvalds int status; 67811da177e4SLinus Torvalds 6782bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67839b7b9fccSAndy Adamson if (status) 67849b7b9fccSAndy Adamson goto out; 6785bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 67869b7b9fccSAndy Adamson if (status) 67871da177e4SLinus Torvalds goto out; 6788bf269551SChuck Lever status = decode_putfh(xdr); 6789bf269551SChuck Lever if (status) 67901da177e4SLinus Torvalds goto out; 6791bf269551SChuck Lever status = decode_server_caps(xdr, res); 67921da177e4SLinus Torvalds out: 67931da177e4SLinus Torvalds return status; 67941da177e4SLinus Torvalds } 67951da177e4SLinus Torvalds 67961da177e4SLinus Torvalds /* 67971da177e4SLinus Torvalds * Decode RENEW response 67981da177e4SLinus Torvalds */ 6799bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6800bf269551SChuck Lever void *__unused) 68011da177e4SLinus Torvalds { 68021da177e4SLinus Torvalds struct compound_hdr hdr; 68031da177e4SLinus Torvalds int status; 68041da177e4SLinus Torvalds 6805bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68061da177e4SLinus Torvalds if (!status) 6807bf269551SChuck Lever status = decode_renew(xdr); 68081da177e4SLinus Torvalds return status; 68091da177e4SLinus Torvalds } 68101da177e4SLinus Torvalds 68111da177e4SLinus Torvalds /* 68128b173218SRicardo Labiaga * Decode SETCLIENTID response 68131da177e4SLinus Torvalds */ 6814bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6815bf269551SChuck Lever struct xdr_stream *xdr, 6816bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 68171da177e4SLinus Torvalds { 68181da177e4SLinus Torvalds struct compound_hdr hdr; 68191da177e4SLinus Torvalds int status; 68201da177e4SLinus Torvalds 6821bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68221da177e4SLinus Torvalds if (!status) 6823bf269551SChuck Lever status = decode_setclientid(xdr, res); 68241da177e4SLinus Torvalds return status; 68251da177e4SLinus Torvalds } 68261da177e4SLinus Torvalds 68271da177e4SLinus Torvalds /* 68288b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 68291da177e4SLinus Torvalds */ 6830bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 683183ca7f5aSChuck Lever struct xdr_stream *xdr) 68321da177e4SLinus Torvalds { 68331da177e4SLinus Torvalds struct compound_hdr hdr; 68341da177e4SLinus Torvalds int status; 68351da177e4SLinus Torvalds 6836bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68371da177e4SLinus Torvalds if (!status) 6838bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 68391da177e4SLinus Torvalds return status; 68401da177e4SLinus Torvalds } 68411da177e4SLinus Torvalds 68421da177e4SLinus Torvalds /* 68438b173218SRicardo Labiaga * Decode DELEGRETURN response 68441da177e4SLinus Torvalds */ 6845bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6846bf269551SChuck Lever struct xdr_stream *xdr, 6847bf269551SChuck Lever struct nfs4_delegreturnres *res) 68481da177e4SLinus Torvalds { 68491da177e4SLinus Torvalds struct compound_hdr hdr; 68501da177e4SLinus Torvalds int status; 68511da177e4SLinus Torvalds 6852bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68539b7b9fccSAndy Adamson if (status) 68549b7b9fccSAndy Adamson goto out; 6855bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 68569b7b9fccSAndy Adamson if (status) 6857fa178f29STrond Myklebust goto out; 6858bf269551SChuck Lever status = decode_putfh(xdr); 6859fa178f29STrond Myklebust if (status != 0) 6860fa178f29STrond Myklebust goto out; 6861e144cbccSTrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 6862556ae3bbSJeff Layton if (status != 0) 6863556ae3bbSJeff Layton goto out; 6864e144cbccSTrond Myklebust status = decode_delegreturn(xdr); 6865fa178f29STrond Myklebust out: 68661da177e4SLinus Torvalds return status; 68671da177e4SLinus Torvalds } 68681da177e4SLinus Torvalds 6869683b57b4STrond Myklebust /* 68708b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6871683b57b4STrond Myklebust */ 6872bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6873bf269551SChuck Lever struct xdr_stream *xdr, 687422958463SBenny Halevy struct nfs4_fs_locations_res *res) 6875683b57b4STrond Myklebust { 6876683b57b4STrond Myklebust struct compound_hdr hdr; 6877683b57b4STrond Myklebust int status; 6878683b57b4STrond Myklebust 6879bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 68809b7b9fccSAndy Adamson if (status) 68819b7b9fccSAndy Adamson goto out; 6882bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 68839b7b9fccSAndy Adamson if (status) 6884683b57b4STrond Myklebust goto out; 6885bf269551SChuck Lever status = decode_putfh(xdr); 6886bf269551SChuck Lever if (status) 6887683b57b4STrond Myklebust goto out; 6888b03d735bSChuck Lever if (res->migration) { 6889b03d735bSChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6890b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6891b03d735bSChuck Lever &res->fs_locations->fattr, 6892b03d735bSChuck Lever NULL, res->fs_locations, 6893b03d735bSChuck Lever NULL, res->fs_locations->server); 6894b03d735bSChuck Lever if (status) 6895b03d735bSChuck Lever goto out; 6896b03d735bSChuck Lever if (res->renew) 6897b03d735bSChuck Lever status = decode_renew(xdr); 6898b03d735bSChuck Lever } else { 6899bf269551SChuck Lever status = decode_lookup(xdr); 6900bf269551SChuck Lever if (status) 6901683b57b4STrond Myklebust goto out; 6902bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6903b03d735bSChuck Lever status = decode_getfattr_generic(xdr, 6904b03d735bSChuck Lever &res->fs_locations->fattr, 69058b7e3f49STrond Myklebust NULL, res->fs_locations, 6906aa9c2669SDavid Quigley NULL, res->fs_locations->server); 6907b03d735bSChuck Lever } 6908683b57b4STrond Myklebust out: 6909683b57b4STrond Myklebust return status; 6910683b57b4STrond Myklebust } 6911683b57b4STrond Myklebust 69125a5ea0d4SBryan Schumaker /* 69135a5ea0d4SBryan Schumaker * Decode SECINFO response 69145a5ea0d4SBryan Schumaker */ 69155a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 69165a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 69175a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 69185a5ea0d4SBryan Schumaker { 69195a5ea0d4SBryan Schumaker struct compound_hdr hdr; 69205a5ea0d4SBryan Schumaker int status; 69215a5ea0d4SBryan Schumaker 69225a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69235a5ea0d4SBryan Schumaker if (status) 69245a5ea0d4SBryan Schumaker goto out; 69255a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69265a5ea0d4SBryan Schumaker if (status) 69275a5ea0d4SBryan Schumaker goto out; 69285a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 69295a5ea0d4SBryan Schumaker if (status) 69305a5ea0d4SBryan Schumaker goto out; 69315a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 69325a5ea0d4SBryan Schumaker out: 69335a5ea0d4SBryan Schumaker return status; 69345a5ea0d4SBryan Schumaker } 69355a5ea0d4SBryan Schumaker 693644c99933SChuck Lever /* 693744c99933SChuck Lever * Decode FSID_PRESENT response 693844c99933SChuck Lever */ 693944c99933SChuck Lever static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp, 694044c99933SChuck Lever struct xdr_stream *xdr, 694144c99933SChuck Lever struct nfs4_fsid_present_res *res) 694244c99933SChuck Lever { 694344c99933SChuck Lever struct compound_hdr hdr; 694444c99933SChuck Lever int status; 694544c99933SChuck Lever 694644c99933SChuck Lever status = decode_compound_hdr(xdr, &hdr); 694744c99933SChuck Lever if (status) 694844c99933SChuck Lever goto out; 694944c99933SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 695044c99933SChuck Lever if (status) 695144c99933SChuck Lever goto out; 695244c99933SChuck Lever status = decode_putfh(xdr); 695344c99933SChuck Lever if (status) 695444c99933SChuck Lever goto out; 695544c99933SChuck Lever status = decode_getfh(xdr, res->fh); 695644c99933SChuck Lever if (status) 695744c99933SChuck Lever goto out; 695844c99933SChuck Lever if (res->renew) 695944c99933SChuck Lever status = decode_renew(xdr); 696044c99933SChuck Lever out: 696144c99933SChuck Lever return status; 696244c99933SChuck Lever } 696344c99933SChuck Lever 696499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 696599fe60d0SBenny Halevy /* 69667c44f1aeSWeston Andros Adamson * Decode BIND_CONN_TO_SESSION response 69677c44f1aeSWeston Andros Adamson */ 69687c44f1aeSWeston Andros Adamson static int nfs4_xdr_dec_bind_conn_to_session(struct rpc_rqst *rqstp, 69697c44f1aeSWeston Andros Adamson struct xdr_stream *xdr, 69707c44f1aeSWeston Andros Adamson void *res) 69717c44f1aeSWeston Andros Adamson { 69727c44f1aeSWeston Andros Adamson struct compound_hdr hdr; 69737c44f1aeSWeston Andros Adamson int status; 69747c44f1aeSWeston Andros Adamson 69757c44f1aeSWeston Andros Adamson status = decode_compound_hdr(xdr, &hdr); 69767c44f1aeSWeston Andros Adamson if (!status) 69777c44f1aeSWeston Andros Adamson status = decode_bind_conn_to_session(xdr, res); 69787c44f1aeSWeston Andros Adamson return status; 69797c44f1aeSWeston Andros Adamson } 69807c44f1aeSWeston Andros Adamson 69817c44f1aeSWeston Andros Adamson /* 69828b173218SRicardo Labiaga * Decode EXCHANGE_ID response 698399fe60d0SBenny Halevy */ 6984bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6985bf269551SChuck Lever struct xdr_stream *xdr, 698699fe60d0SBenny Halevy void *res) 698799fe60d0SBenny Halevy { 698899fe60d0SBenny Halevy struct compound_hdr hdr; 698999fe60d0SBenny Halevy int status; 699099fe60d0SBenny Halevy 6991bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 699299fe60d0SBenny Halevy if (!status) 6993bf269551SChuck Lever status = decode_exchange_id(xdr, res); 699499fe60d0SBenny Halevy return status; 699599fe60d0SBenny Halevy } 69962050f0ccSAndy Adamson 69972050f0ccSAndy Adamson /* 69988b173218SRicardo Labiaga * Decode CREATE_SESSION response 6999fc931582SAndy Adamson */ 7000bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 7001bf269551SChuck Lever struct xdr_stream *xdr, 7002fc931582SAndy Adamson struct nfs41_create_session_res *res) 7003fc931582SAndy Adamson { 7004fc931582SAndy Adamson struct compound_hdr hdr; 7005fc931582SAndy Adamson int status; 7006fc931582SAndy Adamson 7007bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7008fc931582SAndy Adamson if (!status) 7009bf269551SChuck Lever status = decode_create_session(xdr, res); 7010fc931582SAndy Adamson return status; 7011fc931582SAndy Adamson } 7012fc931582SAndy Adamson 7013fc931582SAndy Adamson /* 70148b173218SRicardo Labiaga * Decode DESTROY_SESSION response 70150f3e66c6SAndy Adamson */ 7016bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 7017bf269551SChuck Lever struct xdr_stream *xdr, 7018bf269551SChuck Lever void *res) 70190f3e66c6SAndy Adamson { 70200f3e66c6SAndy Adamson struct compound_hdr hdr; 70210f3e66c6SAndy Adamson int status; 70220f3e66c6SAndy Adamson 7023bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70240f3e66c6SAndy Adamson if (!status) 7025bf269551SChuck Lever status = decode_destroy_session(xdr, res); 70260f3e66c6SAndy Adamson return status; 70270f3e66c6SAndy Adamson } 70280f3e66c6SAndy Adamson 70290f3e66c6SAndy Adamson /* 703066245539STrond Myklebust * Decode DESTROY_CLIENTID response 703166245539STrond Myklebust */ 703266245539STrond Myklebust static int nfs4_xdr_dec_destroy_clientid(struct rpc_rqst *rqstp, 703366245539STrond Myklebust struct xdr_stream *xdr, 703466245539STrond Myklebust void *res) 703566245539STrond Myklebust { 703666245539STrond Myklebust struct compound_hdr hdr; 703766245539STrond Myklebust int status; 703866245539STrond Myklebust 703966245539STrond Myklebust status = decode_compound_hdr(xdr, &hdr); 704066245539STrond Myklebust if (!status) 704166245539STrond Myklebust status = decode_destroy_clientid(xdr, res); 704266245539STrond Myklebust return status; 704366245539STrond Myklebust } 704466245539STrond Myklebust 704566245539STrond Myklebust /* 70468b173218SRicardo Labiaga * Decode SEQUENCE response 7047fc01cea9SAndy Adamson */ 7048bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 7049bf269551SChuck Lever struct xdr_stream *xdr, 7050fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 7051fc01cea9SAndy Adamson { 7052fc01cea9SAndy Adamson struct compound_hdr hdr; 7053fc01cea9SAndy Adamson int status; 7054fc01cea9SAndy Adamson 7055bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7056fc01cea9SAndy Adamson if (!status) 7057bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 7058fc01cea9SAndy Adamson return status; 7059fc01cea9SAndy Adamson } 7060fc01cea9SAndy Adamson 7061fc01cea9SAndy Adamson /* 70628b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 70632050f0ccSAndy Adamson */ 7064bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 7065bf269551SChuck Lever struct xdr_stream *xdr, 70662050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 70672050f0ccSAndy Adamson { 70682050f0ccSAndy Adamson struct compound_hdr hdr; 70692050f0ccSAndy Adamson int status; 70702050f0ccSAndy Adamson 7071bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 70722050f0ccSAndy Adamson if (!status) 7073bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 70742050f0ccSAndy Adamson if (!status) 7075bf269551SChuck Lever status = decode_putrootfh(xdr); 70762050f0ccSAndy Adamson if (!status) 7077bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 70782050f0ccSAndy Adamson return status; 70792050f0ccSAndy Adamson } 708018019753SRicardo Labiaga 708118019753SRicardo Labiaga /* 708218019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 708318019753SRicardo Labiaga */ 7084bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 7085bf269551SChuck Lever struct xdr_stream *xdr, 708618019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 708718019753SRicardo Labiaga { 708818019753SRicardo Labiaga struct compound_hdr hdr; 708918019753SRicardo Labiaga int status; 709018019753SRicardo Labiaga 7091bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 709218019753SRicardo Labiaga if (!status) 7093bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 709418019753SRicardo Labiaga if (!status) 7095bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 709618019753SRicardo Labiaga return status; 709718019753SRicardo Labiaga } 7098b1f69b75SAndy Adamson 7099b1f69b75SAndy Adamson /* 71007f11d8d3SAndy Adamson * Decode GETDEVICELIST response 71017f11d8d3SAndy Adamson */ 71027f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 71037f11d8d3SAndy Adamson struct xdr_stream *xdr, 71047f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 71057f11d8d3SAndy Adamson { 71067f11d8d3SAndy Adamson struct compound_hdr hdr; 71077f11d8d3SAndy Adamson int status; 71087f11d8d3SAndy Adamson 71097f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 71107f11d8d3SAndy Adamson 71117f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 71127f11d8d3SAndy Adamson if (status != 0) 71137f11d8d3SAndy Adamson goto out; 71147f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 71157f11d8d3SAndy Adamson if (status != 0) 71167f11d8d3SAndy Adamson goto out; 71177f11d8d3SAndy Adamson status = decode_putfh(xdr); 71187f11d8d3SAndy Adamson if (status != 0) 71197f11d8d3SAndy Adamson goto out; 71207f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 71217f11d8d3SAndy Adamson out: 71227f11d8d3SAndy Adamson return status; 71237f11d8d3SAndy Adamson } 71247f11d8d3SAndy Adamson 71257f11d8d3SAndy Adamson /* 7126b1f69b75SAndy Adamson * Decode GETDEVINFO response 7127b1f69b75SAndy Adamson */ 7128bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 7129bf269551SChuck Lever struct xdr_stream *xdr, 7130b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 7131b1f69b75SAndy Adamson { 7132b1f69b75SAndy Adamson struct compound_hdr hdr; 7133b1f69b75SAndy Adamson int status; 7134b1f69b75SAndy Adamson 7135bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7136b1f69b75SAndy Adamson if (status != 0) 7137b1f69b75SAndy Adamson goto out; 7138bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7139b1f69b75SAndy Adamson if (status != 0) 7140b1f69b75SAndy Adamson goto out; 7141bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 7142b1f69b75SAndy Adamson out: 7143b1f69b75SAndy Adamson return status; 7144b1f69b75SAndy Adamson } 7145b1f69b75SAndy Adamson 7146b1f69b75SAndy Adamson /* 7147b1f69b75SAndy Adamson * Decode LAYOUTGET response 7148b1f69b75SAndy Adamson */ 7149bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 7150bf269551SChuck Lever struct xdr_stream *xdr, 7151b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 7152b1f69b75SAndy Adamson { 7153b1f69b75SAndy Adamson struct compound_hdr hdr; 7154b1f69b75SAndy Adamson int status; 7155b1f69b75SAndy Adamson 7156bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 7157b1f69b75SAndy Adamson if (status) 7158b1f69b75SAndy Adamson goto out; 7159bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 7160b1f69b75SAndy Adamson if (status) 7161b1f69b75SAndy Adamson goto out; 7162bf269551SChuck Lever status = decode_putfh(xdr); 7163b1f69b75SAndy Adamson if (status) 7164b1f69b75SAndy Adamson goto out; 7165bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 7166b1f69b75SAndy Adamson out: 7167b1f69b75SAndy Adamson return status; 7168b1f69b75SAndy Adamson } 7169863a3c6cSAndy Adamson 7170863a3c6cSAndy Adamson /* 7171cbe82603SBenny Halevy * Decode LAYOUTRETURN response 7172cbe82603SBenny Halevy */ 7173cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 7174cbe82603SBenny Halevy struct xdr_stream *xdr, 7175cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 7176cbe82603SBenny Halevy { 7177cbe82603SBenny Halevy struct compound_hdr hdr; 7178cbe82603SBenny Halevy int status; 7179cbe82603SBenny Halevy 7180cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 7181cbe82603SBenny Halevy if (status) 7182cbe82603SBenny Halevy goto out; 7183cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 7184cbe82603SBenny Halevy if (status) 7185cbe82603SBenny Halevy goto out; 7186cbe82603SBenny Halevy status = decode_putfh(xdr); 7187cbe82603SBenny Halevy if (status) 7188cbe82603SBenny Halevy goto out; 7189cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 7190cbe82603SBenny Halevy out: 7191cbe82603SBenny Halevy return status; 7192cbe82603SBenny Halevy } 7193cbe82603SBenny Halevy 7194cbe82603SBenny Halevy /* 7195863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 7196863a3c6cSAndy Adamson */ 7197863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 7198863a3c6cSAndy Adamson struct xdr_stream *xdr, 7199863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 7200863a3c6cSAndy Adamson { 7201863a3c6cSAndy Adamson struct compound_hdr hdr; 7202863a3c6cSAndy Adamson int status; 7203863a3c6cSAndy Adamson 7204863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 7205863a3c6cSAndy Adamson if (status) 7206863a3c6cSAndy Adamson goto out; 7207863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 7208863a3c6cSAndy Adamson if (status) 7209863a3c6cSAndy Adamson goto out; 7210863a3c6cSAndy Adamson status = decode_putfh(xdr); 7211863a3c6cSAndy Adamson if (status) 7212863a3c6cSAndy Adamson goto out; 7213863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 7214863a3c6cSAndy Adamson if (status) 7215863a3c6cSAndy Adamson goto out; 72166926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 7217863a3c6cSAndy Adamson out: 7218863a3c6cSAndy Adamson return status; 7219863a3c6cSAndy Adamson } 7220fca78d6dSBryan Schumaker 7221fca78d6dSBryan Schumaker /* 7222fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 7223fca78d6dSBryan Schumaker */ 7224fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 7225fca78d6dSBryan Schumaker struct xdr_stream *xdr, 7226fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 7227fca78d6dSBryan Schumaker { 7228fca78d6dSBryan Schumaker struct compound_hdr hdr; 7229fca78d6dSBryan Schumaker int status; 7230fca78d6dSBryan Schumaker 7231fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 7232fca78d6dSBryan Schumaker if (status) 7233fca78d6dSBryan Schumaker goto out; 7234fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 7235fca78d6dSBryan Schumaker if (status) 7236fca78d6dSBryan Schumaker goto out; 7237fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 7238fca78d6dSBryan Schumaker if (status) 7239fca78d6dSBryan Schumaker goto out; 724031e4dda4SBryan Schumaker status = decode_secinfo_no_name(xdr, res); 7241fca78d6dSBryan Schumaker out: 7242fca78d6dSBryan Schumaker return status; 7243fca78d6dSBryan Schumaker } 72447d974794SBryan Schumaker 72457d974794SBryan Schumaker /* 72467d974794SBryan Schumaker * Decode TEST_STATEID response 72477d974794SBryan Schumaker */ 72487d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 72497d974794SBryan Schumaker struct xdr_stream *xdr, 72507d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 72517d974794SBryan Schumaker { 72527d974794SBryan Schumaker struct compound_hdr hdr; 72537d974794SBryan Schumaker int status; 72547d974794SBryan Schumaker 72557d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 72567d974794SBryan Schumaker if (status) 72577d974794SBryan Schumaker goto out; 72587d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 72597d974794SBryan Schumaker if (status) 72607d974794SBryan Schumaker goto out; 72617d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 72627d974794SBryan Schumaker out: 72637d974794SBryan Schumaker return status; 72647d974794SBryan Schumaker } 72659aeda35fSBryan Schumaker 72669aeda35fSBryan Schumaker /* 72679aeda35fSBryan Schumaker * Decode FREE_STATEID response 72689aeda35fSBryan Schumaker */ 72699aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 72709aeda35fSBryan Schumaker struct xdr_stream *xdr, 72719aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 72729aeda35fSBryan Schumaker { 72739aeda35fSBryan Schumaker struct compound_hdr hdr; 72749aeda35fSBryan Schumaker int status; 72759aeda35fSBryan Schumaker 72769aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 72779aeda35fSBryan Schumaker if (status) 72789aeda35fSBryan Schumaker goto out; 72799aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 72809aeda35fSBryan Schumaker if (status) 72819aeda35fSBryan Schumaker goto out; 72829aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 72839aeda35fSBryan Schumaker out: 72849aeda35fSBryan Schumaker return status; 72859aeda35fSBryan Schumaker } 728699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 728799fe60d0SBenny Halevy 7288573c4e1eSChuck Lever /** 7289573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 7290573c4e1eSChuck Lever * the local page cache. 7291573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 7292573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 7293573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 7294573c4e1eSChuck Lever * 7295573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 7296573c4e1eSChuck Lever * returned. 7297573c4e1eSChuck Lever * 7298573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 7299573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 7300573c4e1eSChuck Lever * on a directory already in our cache. 7301573c4e1eSChuck Lever */ 7302573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 7303573c4e1eSChuck Lever int plus) 73041da177e4SLinus Torvalds { 7305256e48bbSTrond Myklebust unsigned int savep; 7306dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 73071da177e4SLinus Torvalds uint32_t len; 7308babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 7309babddc72SBryan Schumaker if (unlikely(!p)) 7310babddc72SBryan Schumaker goto out_overflow; 7311c08e76d0SChuck Lever if (*p == xdr_zero) { 7312babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 7313babddc72SBryan Schumaker if (unlikely(!p)) 7314babddc72SBryan Schumaker goto out_overflow; 7315c08e76d0SChuck Lever if (*p == xdr_zero) 7316573c4e1eSChuck Lever return -EAGAIN; 73171da177e4SLinus Torvalds entry->eof = 1; 7318573c4e1eSChuck Lever return -EBADCOOKIE; 73191da177e4SLinus Torvalds } 73201da177e4SLinus Torvalds 7321babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 7322babddc72SBryan Schumaker if (unlikely(!p)) 7323babddc72SBryan Schumaker goto out_overflow; 73241da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 73251da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 7326c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 7327babddc72SBryan Schumaker 73289af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 7329babddc72SBryan Schumaker if (unlikely(!p)) 7330babddc72SBryan Schumaker goto out_overflow; 73311da177e4SLinus Torvalds entry->name = (const char *) p; 73321da177e4SLinus Torvalds 73331da177e4SLinus Torvalds /* 73341da177e4SLinus Torvalds * In case the server doesn't return an inode number, 73351da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 73361da177e4SLinus Torvalds * since glibc seems to choke on it...) 73371da177e4SLinus Torvalds */ 73381da177e4SLinus Torvalds entry->ino = 1; 73394f082222STrond Myklebust entry->fattr->valid = 0; 73401da177e4SLinus Torvalds 73419af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7342babddc72SBryan Schumaker goto out_overflow; 73439af8c222STrond Myklebust 7344256e48bbSTrond Myklebust if (decode_attr_length(xdr, &len, &savep) < 0) 7345babddc72SBryan Schumaker goto out_overflow; 73469af8c222STrond Myklebust 7347573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 7348aa9c2669SDavid Quigley NULL, entry->label, entry->server) < 0) 7349babddc72SBryan Schumaker goto out_overflow; 735028331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 735128331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 735228331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 735382f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 73549af8c222STrond Myklebust 73550b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 73560b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 73570b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 73580b26a0bfSTrond Myklebust 7359573c4e1eSChuck Lever return 0; 7360babddc72SBryan Schumaker 7361babddc72SBryan Schumaker out_overflow: 7362babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7363573c4e1eSChuck Lever return -EAGAIN; 73641da177e4SLinus Torvalds } 73651da177e4SLinus Torvalds 73661da177e4SLinus Torvalds /* 73671da177e4SLinus Torvalds * We need to translate between nfs status return values and 73681da177e4SLinus Torvalds * the local errno values which may not be the same. 73691da177e4SLinus Torvalds */ 73701da177e4SLinus Torvalds static struct { 73711da177e4SLinus Torvalds int stat; 73721da177e4SLinus Torvalds int errno; 73731da177e4SLinus Torvalds } nfs_errtbl[] = { 73741da177e4SLinus Torvalds { NFS4_OK, 0 }, 7375856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7376856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7377856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7378856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7379856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7380856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7381856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7382856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7383856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7384856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7385856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7386856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7387856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7388856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7389856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7390856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7391856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7392856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7393856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7394856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7395856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7396856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7397fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7398856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7399856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7400856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7401856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7402856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7403856dff3dSBenny Halevy { -1, -EIO } 74041da177e4SLinus Torvalds }; 74051da177e4SLinus Torvalds 74061da177e4SLinus Torvalds /* 74071da177e4SLinus Torvalds * Convert an NFS error code to a local one. 74081da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 74091da177e4SLinus Torvalds */ 74101da177e4SLinus Torvalds static int 74110a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 74121da177e4SLinus Torvalds { 74131da177e4SLinus Torvalds int i; 74141da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 74151da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 74161da177e4SLinus Torvalds return nfs_errtbl[i].errno; 74171da177e4SLinus Torvalds } 74181da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 74191da177e4SLinus Torvalds /* The server is looney tunes. */ 7420fdcb4577STrond Myklebust return -EREMOTEIO; 74211da177e4SLinus Torvalds } 74221da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 74231da177e4SLinus Torvalds * handle it. 74241da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 74251da177e4SLinus Torvalds * not conflict with native Linux error codes. 74261da177e4SLinus Torvalds */ 7427856dff3dSBenny Halevy return -stat; 74281da177e4SLinus Torvalds } 74291da177e4SLinus Torvalds 74301da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 74311da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 74321da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 74339f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7434bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 74352bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 74362bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7437cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7438cc0175c1SChuck Lever .p_name = #proc, \ 74391da177e4SLinus Torvalds } 74401da177e4SLinus Torvalds 74411da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 74421da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 74431da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 74441da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 74451da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 74461da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 74471da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 74481da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 74491da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 74501da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 74511da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 74521da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 74531da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 74541da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 74551da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 74561da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 74571da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 74581da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 74591da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 74601da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 74611da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 74621da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 74631da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 74641da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 74651da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 74661da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 74671da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 74681da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 74691da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 74701da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 74711da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 74721da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7473029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 747423ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7475683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7476d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 74775a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 747844c99933SChuck Lever PROC(FSID_PRESENT, enc_fsid_present, dec_fsid_present), 747999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 748099fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7481fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 74820f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7483fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 74842050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 748518019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7486b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7487b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7488863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7489cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7490fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 74917d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 74929aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 74937f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 7494ad24ecfbSTrond Myklebust PROC(BIND_CONN_TO_SESSION, 7495ad24ecfbSTrond Myklebust enc_bind_conn_to_session, dec_bind_conn_to_session), 749666245539STrond Myklebust PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), 749799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 74981da177e4SLinus Torvalds }; 74991da177e4SLinus Torvalds 7500a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 75011da177e4SLinus Torvalds .number = 4, 7502e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 75031da177e4SLinus Torvalds .procs = nfs4_procedures 75041da177e4SLinus Torvalds }; 75051da177e4SLinus Torvalds 75061da177e4SLinus Torvalds /* 75071da177e4SLinus Torvalds * Local variables: 75081da177e4SLinus Torvalds * c-basic-offset: 8 75091da177e4SLinus Torvalds * End: 75101da177e4SLinus Torvalds */ 7511