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> 471da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 482449ea2eSAlexandros Batsakis #include <linux/sunrpc/msg_prot.h> 491da177e4SLinus Torvalds #include <linux/nfs.h> 501da177e4SLinus Torvalds #include <linux/nfs4.h> 511da177e4SLinus Torvalds #include <linux/nfs_fs.h> 521da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 534ce79717STrond Myklebust #include "nfs4_fs.h" 544882ef72SAlexandros Batsakis #include "internal.h" 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 591da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 601da177e4SLinus Torvalds 610a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 641da177e4SLinus Torvalds #ifdef DEBUG 651da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 661da177e4SLinus Torvalds #else 671da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 681da177e4SLinus Torvalds #endif 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* lock,open owner id: 719f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 721da177e4SLinus Torvalds */ 739f958ab8STrond Myklebust #define open_owner_id_maxsz (1 + 4) 749f958ab8STrond Myklebust #define lock_owner_id_maxsz (1 + 4) 759104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 761da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 771da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 781da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 791da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 809104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 819104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 829104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 839104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 841da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 851da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 861da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 871da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 881da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 891da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 901da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 911da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9296928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9396928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 941da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 951da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 96bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 97bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 9896928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 9996928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 100bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10196928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10296928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10396928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1049104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1059104a55dSTrond Myklebust 1 + 2 + 1 + \ 1069104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1079104a55dSTrond Myklebust nfs4_group_maxsz + \ 1089104a55dSTrond Myklebust 4 + 4) 1091da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1101da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11156ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11256ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1132f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1141da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1151da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1161da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1171da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1181da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 119cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 120cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 121cc38bac3SChuck Lever 1 /* sc_prog */ + \ 122cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 123cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 124cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1251da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1261da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1271da177e4SLinus Torvalds 2 + \ 1281da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1291da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1301da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1311da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1321da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1331da177e4SLinus Torvalds (op_decode_hdr_maxsz) 134e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 135e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1362cebf828STrond Myklebust #define encode_share_access_maxsz \ 1372cebf828STrond Myklebust (2) 1384882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1392cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1402cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1412cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1422cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1432cebf828STrond Myklebust open_owner_id_maxsz + \ 1442cebf828STrond Myklebust encode_opentype_maxsz + \ 1452cebf828STrond Myklebust encode_claim_null_maxsz) 1462cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1479104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1482cebf828STrond Myklebust decode_ace_maxsz) 1492cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1502cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1519104a55dSTrond Myklebust decode_stateid_maxsz + \ 1522cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1532cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1542cebf828STrond Myklebust decode_delegation_maxsz) 1559104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1569104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1579104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1589104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1599104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1609104a55dSTrond Myklebust decode_stateid_maxsz) 1619104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1629104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1639104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1649104a55dSTrond Myklebust encode_share_access_maxsz) 1659104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1669104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1679104a55dSTrond Myklebust decode_stateid_maxsz) 1689104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1699104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1709104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1719104a55dSTrond Myklebust decode_stateid_maxsz) 1729104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1739104a55dSTrond Myklebust encode_stateid_maxsz + \ 1749104a55dSTrond Myklebust encode_attrs_maxsz) 1759104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1769104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1779104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1789104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1799104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1809104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1819104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1829104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1839104a55dSTrond Myklebust decode_verifier_maxsz) 1849104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1859104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1869104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1879104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1889104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1909104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1919104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1929104a55dSTrond Myklebust decode_verifier_maxsz) 1931da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1941da177e4SLinus Torvalds nfs4_name_maxsz) 1956ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 1966ce18391SBenny Halevy decode_change_info_maxsz) 1971da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1981da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1996ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2006ce18391SBenny Halevy decode_change_info_maxsz + \ 2016ce18391SBenny Halevy decode_change_info_maxsz) 2021da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2031da177e4SLinus Torvalds nfs4_name_maxsz) 2046ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 205daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2069104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2079104a55dSTrond Myklebust 7 + \ 208daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 209daccbdedSTrond Myklebust encode_lockowner_maxsz) 2109104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2119104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2129104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2139104a55dSTrond Myklebust decode_lock_denied_maxsz) 214daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 215daccbdedSTrond Myklebust encode_lockowner_maxsz) 2169104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2179104a55dSTrond Myklebust decode_lock_denied_maxsz) 2189104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2199104a55dSTrond Myklebust encode_stateid_maxsz + \ 2209104a55dSTrond Myklebust 4) 2219104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2229104a55dSTrond Myklebust decode_stateid_maxsz) 2239104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2249104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2251da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2261da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 22794a6d753SChuck Lever 1 + \ 22896928206SJ. Bruce Fields nfs4_fattr_maxsz) 2291da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2301da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2319104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2329104a55dSTrond Myklebust encode_attrs_maxsz) 2332cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2342cebf828STrond Myklebust decode_change_info_maxsz + \ 2352cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2369104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2379104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2381da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2391da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2409104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2419104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2429104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2439104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2449104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2459104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 246e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 247e6889620STrond Myklebust (encode_getattr_maxsz) 248e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 249e6889620STrond Myklebust (0) 2509b7b9fccSAndy Adamson 2519b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 252fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 253fc931582SAndy Adamson 25499fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 25599fe60d0SBenny Halevy encode_verifier_maxsz + \ 25699fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 25799fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 25899fe60d0SBenny Halevy 1 /* flags */ + \ 25999fe60d0SBenny Halevy 1 /* spa_how */ + \ 26099fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 26199fe60d0SBenny Halevy 1 /* zero implemetation id array */) 26299fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 26399fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 26499fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 26599fe60d0SBenny Halevy 1 /* eir_flags */ + \ 26699fe60d0SBenny Halevy 1 /* spr_how */ + \ 26799fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 26899fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 26999fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 27099fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27199fe60d0SBenny Halevy /* eir_server_scope<> */ \ 27299fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27399fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 27499fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 275fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 276fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 277fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 278fc931582SAndy Adamson 1 /* ca_rdma_ird */) 279fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 280fc931582SAndy Adamson 2 /* csa_clientid */ + \ 281fc931582SAndy Adamson 1 /* csa_sequence */ + \ 282fc931582SAndy Adamson 1 /* csa_flags */ + \ 283fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 284fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 285fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 286fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 287fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 288fc931582SAndy Adamson 1 /* stamp */ + \ 289fc931582SAndy Adamson 1 /* machinename.len */ + \ 290fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 291fc931582SAndy Adamson 1 /* uid */ + \ 292fc931582SAndy Adamson 1 /* gid */ + \ 293fc931582SAndy Adamson 1 /* gids.len (0) */) 294fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 295fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 296fc931582SAndy Adamson 1 /* csr_sequence */ + \ 297fc931582SAndy Adamson 1 /* csr_flags */ + \ 298fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 299fc931582SAndy Adamson decode_channel_attrs_maxsz) 3000f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3010f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 302fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 303fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 304fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 305fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 30618019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 30718019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3089b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3099b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3109b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3119b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3129b7b9fccSAndy Adamson 3131da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3141da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3151da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3171da177e4SLinus Torvalds encode_putfh_maxsz + \ 3189104a55dSTrond Myklebust encode_read_maxsz) 3191da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3209b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3211da177e4SLinus Torvalds decode_putfh_maxsz + \ 3229104a55dSTrond Myklebust decode_read_maxsz) 3231da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3249b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3251da177e4SLinus Torvalds encode_putfh_maxsz + \ 3269104a55dSTrond Myklebust encode_readlink_maxsz) 3271da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3289b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3291da177e4SLinus Torvalds decode_putfh_maxsz + \ 3309104a55dSTrond Myklebust decode_readlink_maxsz) 3311da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3329b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3331da177e4SLinus Torvalds encode_putfh_maxsz + \ 3349104a55dSTrond Myklebust encode_readdir_maxsz) 3351da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3369b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3371da177e4SLinus Torvalds decode_putfh_maxsz + \ 3389104a55dSTrond Myklebust decode_readdir_maxsz) 3391da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3409b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3411da177e4SLinus Torvalds encode_putfh_maxsz + \ 3429104a55dSTrond Myklebust encode_write_maxsz + \ 3434f9838c7STrond Myklebust encode_getattr_maxsz) 3441da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3459b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3461da177e4SLinus Torvalds decode_putfh_maxsz + \ 3479104a55dSTrond Myklebust decode_write_maxsz + \ 3484f9838c7STrond Myklebust decode_getattr_maxsz) 3491da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3509b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3511da177e4SLinus Torvalds encode_putfh_maxsz + \ 3529104a55dSTrond Myklebust encode_commit_maxsz + \ 3534f9838c7STrond Myklebust encode_getattr_maxsz) 3541da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3559b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3561da177e4SLinus Torvalds decode_putfh_maxsz + \ 3579104a55dSTrond Myklebust decode_commit_maxsz + \ 3584f9838c7STrond Myklebust decode_getattr_maxsz) 3591da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3609b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3611da177e4SLinus Torvalds encode_putfh_maxsz + \ 3622cebf828STrond Myklebust encode_savefh_maxsz + \ 3632cebf828STrond Myklebust encode_open_maxsz + \ 3642cebf828STrond Myklebust encode_getfh_maxsz + \ 3651da177e4SLinus Torvalds encode_getattr_maxsz + \ 3662cebf828STrond Myklebust encode_restorefh_maxsz + \ 3672cebf828STrond Myklebust encode_getattr_maxsz) 3681da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 3699b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3701da177e4SLinus Torvalds decode_putfh_maxsz + \ 3712cebf828STrond Myklebust decode_savefh_maxsz + \ 3722cebf828STrond Myklebust decode_open_maxsz + \ 3732cebf828STrond Myklebust decode_getfh_maxsz + \ 3741da177e4SLinus Torvalds decode_getattr_maxsz + \ 3752cebf828STrond Myklebust decode_restorefh_maxsz + \ 3762cebf828STrond Myklebust decode_getattr_maxsz) 3771da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3781da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3791da177e4SLinus Torvalds encode_putfh_maxsz + \ 3809104a55dSTrond Myklebust encode_open_confirm_maxsz) 3819104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3829104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3831da177e4SLinus Torvalds decode_putfh_maxsz + \ 3849104a55dSTrond Myklebust decode_open_confirm_maxsz) 3851da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3869b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3871da177e4SLinus Torvalds encode_putfh_maxsz + \ 3882cebf828STrond Myklebust encode_open_maxsz + \ 3892cebf828STrond Myklebust encode_getattr_maxsz) 3901da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3919b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3921da177e4SLinus Torvalds decode_putfh_maxsz + \ 3932cebf828STrond Myklebust decode_open_maxsz + \ 3942cebf828STrond Myklebust decode_getattr_maxsz) 3951da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3961da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3979b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3981da177e4SLinus Torvalds encode_putfh_maxsz + \ 3999104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 400516a6af6STrond Myklebust encode_getattr_maxsz) 4011da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4021da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4039b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4041da177e4SLinus Torvalds decode_putfh_maxsz + \ 4059104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 406516a6af6STrond Myklebust decode_getattr_maxsz) 4071da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4089b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4091da177e4SLinus Torvalds encode_putfh_maxsz + \ 4109104a55dSTrond Myklebust encode_close_maxsz + \ 411516a6af6STrond Myklebust encode_getattr_maxsz) 4121da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4141da177e4SLinus Torvalds decode_putfh_maxsz + \ 4159104a55dSTrond Myklebust decode_close_maxsz + \ 416516a6af6STrond Myklebust decode_getattr_maxsz) 4171da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4189b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4191da177e4SLinus Torvalds encode_putfh_maxsz + \ 4209104a55dSTrond Myklebust encode_setattr_maxsz + \ 4211da177e4SLinus Torvalds encode_getattr_maxsz) 4221da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4241da177e4SLinus Torvalds decode_putfh_maxsz + \ 4259104a55dSTrond Myklebust decode_setattr_maxsz + \ 4269104a55dSTrond Myklebust decode_getattr_maxsz) 4271da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4289b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4291da177e4SLinus Torvalds encode_putfh_maxsz + \ 4301da177e4SLinus Torvalds encode_fsinfo_maxsz) 4311da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4331da177e4SLinus Torvalds decode_putfh_maxsz + \ 4341da177e4SLinus Torvalds decode_fsinfo_maxsz) 4351da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4361da177e4SLinus Torvalds encode_renew_maxsz) 4371da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4381da177e4SLinus Torvalds decode_renew_maxsz) 4391da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4401da177e4SLinus Torvalds encode_setclientid_maxsz) 4411da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4421da177e4SLinus Torvalds decode_setclientid_maxsz) 4431da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4441da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4451da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4461da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4471da177e4SLinus Torvalds encode_fsinfo_maxsz) 4481da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4491da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4501da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4511da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4521da177e4SLinus Torvalds decode_fsinfo_maxsz) 4531da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4549b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4551da177e4SLinus Torvalds encode_putfh_maxsz + \ 4569104a55dSTrond Myklebust encode_lock_maxsz) 4571da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4589b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4591da177e4SLinus Torvalds decode_putfh_maxsz + \ 4609104a55dSTrond Myklebust decode_lock_maxsz) 4611da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4629b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4631da177e4SLinus Torvalds encode_putfh_maxsz + \ 4649104a55dSTrond Myklebust encode_lockt_maxsz) 4659104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 4669b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4679104a55dSTrond Myklebust decode_putfh_maxsz + \ 4689104a55dSTrond Myklebust decode_lockt_maxsz) 4691da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 4709b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4711da177e4SLinus Torvalds encode_putfh_maxsz + \ 4729104a55dSTrond Myklebust encode_locku_maxsz) 4731da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 4749b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4751da177e4SLinus Torvalds decode_putfh_maxsz + \ 4769104a55dSTrond Myklebust decode_locku_maxsz) 4771da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 4789b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4791da177e4SLinus Torvalds encode_putfh_maxsz + \ 48076b32999STrond Myklebust encode_access_maxsz + \ 48176b32999STrond Myklebust encode_getattr_maxsz) 4821da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 4839b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4841da177e4SLinus Torvalds decode_putfh_maxsz + \ 48576b32999STrond Myklebust decode_access_maxsz + \ 48676b32999STrond Myklebust decode_getattr_maxsz) 4871da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 4889b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4891da177e4SLinus Torvalds encode_putfh_maxsz + \ 4901da177e4SLinus Torvalds encode_getattr_maxsz) 4911da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 4929b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4931da177e4SLinus Torvalds decode_putfh_maxsz + \ 4941da177e4SLinus Torvalds decode_getattr_maxsz) 4951da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 4969b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4971da177e4SLinus Torvalds encode_putfh_maxsz + \ 4981da177e4SLinus Torvalds encode_lookup_maxsz + \ 4991da177e4SLinus Torvalds encode_getattr_maxsz + \ 5001da177e4SLinus Torvalds encode_getfh_maxsz) 5011da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5029b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5031da177e4SLinus Torvalds decode_putfh_maxsz + \ 504e6889620STrond Myklebust decode_lookup_maxsz + \ 5051da177e4SLinus Torvalds decode_getattr_maxsz + \ 5061da177e4SLinus Torvalds decode_getfh_maxsz) 5071da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5089b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5091da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5101da177e4SLinus Torvalds encode_getattr_maxsz + \ 5111da177e4SLinus Torvalds encode_getfh_maxsz) 5121da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5141da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5151da177e4SLinus Torvalds decode_getattr_maxsz + \ 5161da177e4SLinus Torvalds decode_getfh_maxsz) 5171da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5189b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5191da177e4SLinus Torvalds encode_putfh_maxsz + \ 52016e42959STrond Myklebust encode_remove_maxsz + \ 52116e42959STrond Myklebust encode_getattr_maxsz) 5221da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5241da177e4SLinus Torvalds decode_putfh_maxsz + \ 5256ce18391SBenny Halevy decode_remove_maxsz + \ 52616e42959STrond Myklebust decode_getattr_maxsz) 5271da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5289b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5291da177e4SLinus Torvalds encode_putfh_maxsz + \ 5301da177e4SLinus Torvalds encode_savefh_maxsz + \ 5311da177e4SLinus Torvalds encode_putfh_maxsz + \ 5326caf2c82STrond Myklebust encode_rename_maxsz + \ 5336caf2c82STrond Myklebust encode_getattr_maxsz + \ 5346caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5356caf2c82STrond Myklebust encode_getattr_maxsz) 5361da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5381da177e4SLinus Torvalds decode_putfh_maxsz + \ 5391da177e4SLinus Torvalds decode_savefh_maxsz + \ 5401da177e4SLinus Torvalds decode_putfh_maxsz + \ 5416caf2c82STrond Myklebust decode_rename_maxsz + \ 5426caf2c82STrond Myklebust decode_getattr_maxsz + \ 5436caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5446caf2c82STrond Myklebust decode_getattr_maxsz) 5451da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5469b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5471da177e4SLinus Torvalds encode_putfh_maxsz + \ 5481da177e4SLinus Torvalds encode_savefh_maxsz + \ 5491da177e4SLinus Torvalds encode_putfh_maxsz + \ 55091ba2eeeSTrond Myklebust encode_link_maxsz + \ 55191ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 55291ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 55391ba2eeeSTrond Myklebust decode_getattr_maxsz) 5541da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5559b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5561da177e4SLinus Torvalds decode_putfh_maxsz + \ 5571da177e4SLinus Torvalds decode_savefh_maxsz + \ 5581da177e4SLinus Torvalds decode_putfh_maxsz + \ 55991ba2eeeSTrond Myklebust decode_link_maxsz + \ 56091ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 56191ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 56291ba2eeeSTrond Myklebust decode_getattr_maxsz) 5631da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 5649b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5651da177e4SLinus Torvalds encode_putfh_maxsz + \ 5661da177e4SLinus Torvalds encode_symlink_maxsz + \ 5671da177e4SLinus Torvalds encode_getattr_maxsz + \ 5681da177e4SLinus Torvalds encode_getfh_maxsz) 5691da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 5709b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5711da177e4SLinus Torvalds decode_putfh_maxsz + \ 5721da177e4SLinus Torvalds decode_symlink_maxsz + \ 5731da177e4SLinus Torvalds decode_getattr_maxsz + \ 5741da177e4SLinus Torvalds decode_getfh_maxsz) 5751da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 5769b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5771da177e4SLinus Torvalds encode_putfh_maxsz + \ 57856ae19f3STrond Myklebust encode_savefh_maxsz + \ 5791da177e4SLinus Torvalds encode_create_maxsz + \ 58056ae19f3STrond Myklebust encode_getfh_maxsz + \ 5811da177e4SLinus Torvalds encode_getattr_maxsz + \ 58256ae19f3STrond Myklebust encode_restorefh_maxsz + \ 58356ae19f3STrond Myklebust encode_getattr_maxsz) 5841da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 5859b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5861da177e4SLinus Torvalds decode_putfh_maxsz + \ 58756ae19f3STrond Myklebust decode_savefh_maxsz + \ 5881da177e4SLinus Torvalds decode_create_maxsz + \ 58956ae19f3STrond Myklebust decode_getfh_maxsz + \ 5901da177e4SLinus Torvalds decode_getattr_maxsz + \ 59156ae19f3STrond Myklebust decode_restorefh_maxsz + \ 59256ae19f3STrond Myklebust decode_getattr_maxsz) 5931da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 5949b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5951da177e4SLinus Torvalds encode_putfh_maxsz + \ 5961da177e4SLinus Torvalds encode_getattr_maxsz) 5971da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 5989b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5991da177e4SLinus Torvalds decode_putfh_maxsz + \ 6001da177e4SLinus Torvalds decode_getattr_maxsz) 6011da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6029b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6031da177e4SLinus Torvalds encode_putfh_maxsz + \ 6049104a55dSTrond Myklebust encode_statfs_maxsz) 6051da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6069b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6071da177e4SLinus Torvalds decode_putfh_maxsz + \ 6089104a55dSTrond Myklebust decode_statfs_maxsz) 6091da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6109b7b9fccSAndy Adamson encode_sequence_maxsz + \ 611ab91f264STrond Myklebust encode_putfh_maxsz + \ 6121da177e4SLinus Torvalds encode_getattr_maxsz) 6131da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6149b7b9fccSAndy Adamson decode_sequence_maxsz + \ 615ab91f264STrond Myklebust decode_putfh_maxsz + \ 6161da177e4SLinus Torvalds decode_getattr_maxsz) 6171da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6189b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6191da177e4SLinus Torvalds encode_putfh_maxsz + \ 620fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 621fa178f29STrond Myklebust encode_getattr_maxsz) 6221da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 624fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 625fa178f29STrond Myklebust decode_getattr_maxsz) 626029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6279b7b9fccSAndy Adamson encode_sequence_maxsz + \ 628029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6299104a55dSTrond Myklebust encode_getacl_maxsz) 630029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6319b7b9fccSAndy Adamson decode_sequence_maxsz + \ 632029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6339104a55dSTrond Myklebust decode_getacl_maxsz) 63423ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 63623ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6379104a55dSTrond Myklebust encode_setacl_maxsz) 63823ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 64023ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6419104a55dSTrond Myklebust decode_setacl_maxsz) 642683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 643683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6449b7b9fccSAndy Adamson encode_sequence_maxsz + \ 645683b57b4STrond Myklebust encode_putfh_maxsz + \ 646e6889620STrond Myklebust encode_lookup_maxsz + \ 647e6889620STrond Myklebust encode_fs_locations_maxsz) 648683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 649683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 651683b57b4STrond Myklebust decode_putfh_maxsz + \ 652e6889620STrond Myklebust decode_lookup_maxsz + \ 653e6889620STrond Myklebust decode_fs_locations_maxsz) 65499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 65599fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 65699fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 65799fe60d0SBenny Halevy encode_exchange_id_maxsz) 65899fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 65999fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 66099fe60d0SBenny Halevy decode_exchange_id_maxsz) 661fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 662fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 663fc931582SAndy Adamson encode_create_session_maxsz) 664fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 665fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 666fc931582SAndy Adamson decode_create_session_maxsz) 6670f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 6680f3e66c6SAndy Adamson encode_destroy_session_maxsz) 6690f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 6700f3e66c6SAndy Adamson decode_destroy_session_maxsz) 671fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 672fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 673fc01cea9SAndy Adamson encode_sequence_maxsz) 674fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 675fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 676fc01cea9SAndy Adamson decode_sequence_maxsz) 6772050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 6782050f0ccSAndy Adamson encode_sequence_maxsz + \ 6792050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 6802050f0ccSAndy Adamson encode_fsinfo_maxsz) 6812050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 6822050f0ccSAndy Adamson decode_sequence_maxsz + \ 6832050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 6842050f0ccSAndy Adamson decode_fsinfo_maxsz) 68518019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 68618019753SRicardo Labiaga encode_sequence_maxsz + \ 68718019753SRicardo Labiaga encode_reclaim_complete_maxsz) 68818019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 68918019753SRicardo Labiaga decode_sequence_maxsz + \ 69018019753SRicardo Labiaga decode_reclaim_complete_maxsz) 6912449ea2eSAlexandros Batsakis 6922449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 6932449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 6942449ea2eSAlexandros Batsakis encode_sequence_maxsz + 6952449ea2eSAlexandros Batsakis encode_putfh_maxsz + 6962449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 6972449ea2eSAlexandros Batsakis XDR_UNIT); 6982449ea2eSAlexandros Batsakis 6992449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 7002449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 7012449ea2eSAlexandros Batsakis decode_sequence_maxsz + 7022449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 7032449ea2eSAlexandros Batsakis XDR_UNIT); 70499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 7051da177e4SLinus Torvalds 706bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 707bca79478STrond Myklebust [NF4BAD] = 0, 708bca79478STrond Myklebust [NF4REG] = S_IFREG, 709bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 710bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 711bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 712bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 713bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 714bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 715bca79478STrond Myklebust [NF4ATTRDIR] = 0, 716bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 7171da177e4SLinus Torvalds }; 7181da177e4SLinus Torvalds 7191da177e4SLinus Torvalds struct compound_hdr { 7201da177e4SLinus Torvalds int32_t status; 7211da177e4SLinus Torvalds uint32_t nops; 722d017931cSAndy Adamson __be32 * nops_p; 7231da177e4SLinus Torvalds uint32_t taglen; 7241da177e4SLinus Torvalds char * tag; 7250c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 72666cc0429SBenny Halevy u32 minorversion; 7271da177e4SLinus Torvalds }; 7281da177e4SLinus Torvalds 72913c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 73013c65ce9SBenny Halevy { 73113c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 73213c65ce9SBenny Halevy BUG_ON(!p); 73313c65ce9SBenny Halevy return p; 73413c65ce9SBenny Halevy } 7351da177e4SLinus Torvalds 7361da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7371da177e4SLinus Torvalds { 7388687b63aSAl Viro __be32 *p; 7391da177e4SLinus Torvalds 7401da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7411da177e4SLinus Torvalds BUG_ON(p == NULL); 7421da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7431da177e4SLinus Torvalds } 7441da177e4SLinus Torvalds 7450c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7460c4e8c18SBenny Halevy struct rpc_rqst *req, 7470c4e8c18SBenny Halevy struct compound_hdr *hdr) 7481da177e4SLinus Torvalds { 7498687b63aSAl Viro __be32 *p; 7500c4e8c18SBenny Halevy struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 7510c4e8c18SBenny Halevy 7520c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7530c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7540c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7550c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7561da177e4SLinus Torvalds 7571da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7581da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 759811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 760811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 761e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 762d017931cSAndy Adamson hdr->nops_p = p; 76334558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 764d017931cSAndy Adamson } 765d017931cSAndy Adamson 766d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 767d017931cSAndy Adamson { 768fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 769d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 7701da177e4SLinus Torvalds } 7711da177e4SLinus Torvalds 7721da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 7731da177e4SLinus Torvalds { 7748687b63aSAl Viro __be32 *p; 7751da177e4SLinus Torvalds 7761da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 7771da177e4SLinus Torvalds BUG_ON(p == NULL); 7781da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 7791da177e4SLinus Torvalds } 7801da177e4SLinus Torvalds 781cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 7821da177e4SLinus Torvalds { 7831da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 7841da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 7851da177e4SLinus Torvalds int owner_namelen = 0; 7861da177e4SLinus Torvalds int owner_grouplen = 0; 7878687b63aSAl Viro __be32 *p; 7888687b63aSAl Viro __be32 *q; 7891da177e4SLinus Torvalds int len; 7901da177e4SLinus Torvalds uint32_t bmval0 = 0; 7911da177e4SLinus Torvalds uint32_t bmval1 = 0; 7921da177e4SLinus Torvalds 7931da177e4SLinus Torvalds /* 7941da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 7951da177e4SLinus Torvalds * In the worst-case, this would be 7961da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 7971da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 79823ec6965SJ. Bruce Fields * such as owner/group. 7991da177e4SLinus Torvalds */ 8001da177e4SLinus Torvalds len = 16; 8011da177e4SLinus Torvalds 8021da177e4SLinus Torvalds /* Sigh */ 8031da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 8041da177e4SLinus Torvalds len += 8; 8051da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 8061da177e4SLinus Torvalds len += 4; 8071da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8087539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 8091da177e4SLinus Torvalds if (owner_namelen < 0) { 810fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 8111da177e4SLinus Torvalds iap->ia_uid); 8121da177e4SLinus Torvalds /* XXX */ 8131da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 8141da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8151da177e4SLinus Torvalds /* goto out; */ 8161da177e4SLinus Torvalds } 8171da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8181da177e4SLinus Torvalds } 8191da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8207539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 8211da177e4SLinus Torvalds if (owner_grouplen < 0) { 822fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8231da177e4SLinus Torvalds iap->ia_gid); 8241da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8251da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8261da177e4SLinus Torvalds /* goto out; */ 8271da177e4SLinus Torvalds } 8281da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8291da177e4SLinus Torvalds } 8301da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8311da177e4SLinus Torvalds len += 16; 8321da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8331da177e4SLinus Torvalds len += 4; 8341da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8351da177e4SLinus Torvalds len += 16; 8361da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8371da177e4SLinus Torvalds len += 4; 83813c65ce9SBenny Halevy p = reserve_space(xdr, len); 8391da177e4SLinus Torvalds 8401da177e4SLinus Torvalds /* 8411da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8421da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8431da177e4SLinus Torvalds */ 844e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 8451da177e4SLinus Torvalds q = p; 8461da177e4SLinus Torvalds p += 3; 8471da177e4SLinus Torvalds 8481da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8491da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 850b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 8511da177e4SLinus Torvalds } 8521da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8531da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 854e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 8551da177e4SLinus Torvalds } 8561da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8571da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 858811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 8591da177e4SLinus Torvalds } 8601da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8611da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 862811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 8631da177e4SLinus Torvalds } 8641da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 8651da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 866e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 867e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 868d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 869d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 8701da177e4SLinus Torvalds } 8711da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 8721da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 873e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8741da177e4SLinus Torvalds } 8751da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 8761da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 877e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 878e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 879e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 880e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8811da177e4SLinus Torvalds } 8821da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 8831da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 884e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8851da177e4SLinus Torvalds } 8861da177e4SLinus Torvalds 8871da177e4SLinus Torvalds /* 8881da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 8891da177e4SLinus Torvalds */ 8901da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 891fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 8921da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 8931da177e4SLinus Torvalds BUG(); 8941da177e4SLinus Torvalds } 8951da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 8961da177e4SLinus Torvalds *q++ = htonl(bmval0); 8971da177e4SLinus Torvalds *q++ = htonl(bmval1); 89834558513SBenny Halevy *q = htonl(len); 8991da177e4SLinus Torvalds 9001da177e4SLinus Torvalds /* out: */ 9011da177e4SLinus Torvalds } 9021da177e4SLinus Torvalds 903cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 9041da177e4SLinus Torvalds { 9058687b63aSAl Viro __be32 *p; 9061da177e4SLinus Torvalds 90713c65ce9SBenny Halevy p = reserve_space(xdr, 8); 908e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 90934558513SBenny Halevy *p = cpu_to_be32(access); 910d017931cSAndy Adamson hdr->nops++; 911dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 9121da177e4SLinus Torvalds } 9131da177e4SLinus Torvalds 914cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9151da177e4SLinus Torvalds { 9168687b63aSAl Viro __be32 *p; 9171da177e4SLinus Torvalds 91813c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 919e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 920e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 92134558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 922d017931cSAndy Adamson hdr->nops++; 923dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds 926cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9271da177e4SLinus Torvalds { 9288687b63aSAl Viro __be32 *p; 9291da177e4SLinus Torvalds 93013c65ce9SBenny Halevy p = reserve_space(xdr, 16); 931e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 932b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 93334558513SBenny Halevy *p = cpu_to_be32(args->count); 934d017931cSAndy Adamson hdr->nops++; 935dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9361da177e4SLinus Torvalds } 9371da177e4SLinus Torvalds 938cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9391da177e4SLinus Torvalds { 9408687b63aSAl Viro __be32 *p; 9411da177e4SLinus Torvalds 94213c65ce9SBenny Halevy p = reserve_space(xdr, 8); 943e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 94434558513SBenny Halevy *p = cpu_to_be32(create->ftype); 9451da177e4SLinus Torvalds 9461da177e4SLinus Torvalds switch (create->ftype) { 9471da177e4SLinus Torvalds case NF4LNK: 94813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 94934558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 95094a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9511da177e4SLinus Torvalds break; 9521da177e4SLinus Torvalds 9531da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 95413c65ce9SBenny Halevy p = reserve_space(xdr, 8); 955e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 95634558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 9571da177e4SLinus Torvalds break; 9581da177e4SLinus Torvalds 9591da177e4SLinus Torvalds default: 9601da177e4SLinus Torvalds break; 9611da177e4SLinus Torvalds } 9621da177e4SLinus Torvalds 963811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 964d017931cSAndy Adamson hdr->nops++; 965dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 9661da177e4SLinus Torvalds 967cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 9681da177e4SLinus Torvalds } 9691da177e4SLinus Torvalds 970cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 9711da177e4SLinus Torvalds { 9728687b63aSAl Viro __be32 *p; 9731da177e4SLinus Torvalds 97413c65ce9SBenny Halevy p = reserve_space(xdr, 12); 975e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 976e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 97734558513SBenny Halevy *p = cpu_to_be32(bitmap); 978d017931cSAndy Adamson hdr->nops++; 979dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9801da177e4SLinus Torvalds } 9811da177e4SLinus Torvalds 982cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 9831da177e4SLinus Torvalds { 9848687b63aSAl Viro __be32 *p; 9851da177e4SLinus Torvalds 98613c65ce9SBenny Halevy p = reserve_space(xdr, 16); 987e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 988e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 989e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 99034558513SBenny Halevy *p = cpu_to_be32(bm1); 991d017931cSAndy Adamson hdr->nops++; 992dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9931da177e4SLinus Torvalds } 9941da177e4SLinus Torvalds 995cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9961da177e4SLinus Torvalds { 997cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 998d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 9991da177e4SLinus Torvalds } 10001da177e4SLinus Torvalds 1001cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10021da177e4SLinus Torvalds { 1003cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 1004d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 10051da177e4SLinus Torvalds } 10061da177e4SLinus Torvalds 1007cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1008830b8e33SManoj Naik { 1009cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1010cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1011830b8e33SManoj Naik } 1012830b8e33SManoj Naik 1013cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10141da177e4SLinus Torvalds { 10158687b63aSAl Viro __be32 *p; 10161da177e4SLinus Torvalds 101713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 101834558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1019d017931cSAndy Adamson hdr->nops++; 1020dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10211da177e4SLinus Torvalds } 10221da177e4SLinus Torvalds 1023cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10241da177e4SLinus Torvalds { 10258687b63aSAl Viro __be32 *p; 10261da177e4SLinus Torvalds 102713c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1028e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1029811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1030d017931cSAndy Adamson hdr->nops++; 1031dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10321da177e4SLinus Torvalds } 10331da177e4SLinus Torvalds 1034911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1035911d1aafSTrond Myklebust { 1036911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1037911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1038911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1039911d1aafSTrond Myklebust } 1040911d1aafSTrond Myklebust 1041911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1042911d1aafSTrond Myklebust { 1043911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1044911d1aafSTrond Myklebust return ~(uint64_t)0; 1045911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1046911d1aafSTrond Myklebust } 1047911d1aafSTrond Myklebust 1048daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1049daccbdedSTrond Myklebust { 1050daccbdedSTrond Myklebust __be32 *p; 1051daccbdedSTrond Myklebust 1052daccbdedSTrond Myklebust p = reserve_space(xdr, 28); 1053daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1054daccbdedSTrond Myklebust *p++ = cpu_to_be32(16); 1055daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1056daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1057daccbdedSTrond Myklebust } 1058daccbdedSTrond Myklebust 10591da177e4SLinus Torvalds /* 10601da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 10611da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 10621da177e4SLinus Torvalds */ 1063cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 10641da177e4SLinus Torvalds { 10658687b63aSAl Viro __be32 *p; 10661da177e4SLinus Torvalds 106713c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1068e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1069e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1070e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1071b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1072b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 107334558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1074911d1aafSTrond Myklebust if (args->new_lock_owner){ 1075daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1076e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 107793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1078e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1079daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 10801da177e4SLinus Torvalds } 10811da177e4SLinus Torvalds else { 108213c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 108393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 108434558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 10851da177e4SLinus Torvalds } 1086d017931cSAndy Adamson hdr->nops++; 1087dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 10881da177e4SLinus Torvalds } 10891da177e4SLinus Torvalds 1090cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 10911da177e4SLinus Torvalds { 10928687b63aSAl Viro __be32 *p; 10931da177e4SLinus Torvalds 1094daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1095e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1096e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1097b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1098b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1099daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1100d017931cSAndy Adamson hdr->nops++; 1101dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 11021da177e4SLinus Torvalds } 11031da177e4SLinus Torvalds 1104cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 11051da177e4SLinus Torvalds { 11068687b63aSAl Viro __be32 *p; 11071da177e4SLinus Torvalds 110813c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1109e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1110e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1111e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 111293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1113b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 111434558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1115d017931cSAndy Adamson hdr->nops++; 1116dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11171da177e4SLinus Torvalds } 11181da177e4SLinus Torvalds 1119cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11201da177e4SLinus Torvalds { 11211da177e4SLinus Torvalds int len = name->len; 11228687b63aSAl Viro __be32 *p; 11231da177e4SLinus Torvalds 112413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1125e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1126811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1127d017931cSAndy Adamson hdr->nops++; 1128dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11291da177e4SLinus Torvalds } 11301da177e4SLinus Torvalds 1131dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11321da177e4SLinus Torvalds { 11338687b63aSAl Viro __be32 *p; 11341da177e4SLinus Torvalds 113513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1136dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11371da177e4SLinus Torvalds case FMODE_READ: 1138e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11391da177e4SLinus Torvalds break; 11401da177e4SLinus Torvalds case FMODE_WRITE: 1141e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11421da177e4SLinus Torvalds break; 11431da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1144e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11451da177e4SLinus Torvalds break; 11461da177e4SLinus Torvalds default: 1147e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11481da177e4SLinus Torvalds } 114934558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 11501da177e4SLinus Torvalds } 11511da177e4SLinus Torvalds 11521da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11531da177e4SLinus Torvalds { 11548687b63aSAl Viro __be32 *p; 11551da177e4SLinus Torvalds /* 11561da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 11571da177e4SLinus Torvalds * owner 4 = 32 11581da177e4SLinus Torvalds */ 115913c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1160e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 116134558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1162dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 116313c65ce9SBenny Halevy p = reserve_space(xdr, 28); 1164b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1165e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 116693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 116734558513SBenny Halevy xdr_encode_hyper(p, arg->id); 11681da177e4SLinus Torvalds } 11691da177e4SLinus Torvalds 11701da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11711da177e4SLinus Torvalds { 11728687b63aSAl Viro __be32 *p; 11734882ef72SAlexandros Batsakis struct nfs_client *clp; 11741da177e4SLinus Torvalds 117513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 11761da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 11771da177e4SLinus Torvalds case 0: 117834558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 11791da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 11801da177e4SLinus Torvalds break; 11811da177e4SLinus Torvalds default: 11824882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1183a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 11844882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 11854882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 11864882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 11874882ef72SAlexandros Batsakis } else { 11884882ef72SAlexandros Batsakis struct iattr dummy; 11894882ef72SAlexandros Batsakis 11904882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 11914882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 11924882ef72SAlexandros Batsakis dummy.ia_valid = 0; 11934882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 11944882ef72SAlexandros Batsakis } 11954882ef72SAlexandros Batsakis } else { 119634558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 11971da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 11981da177e4SLinus Torvalds } 11991da177e4SLinus Torvalds } 12004882ef72SAlexandros Batsakis } 12011da177e4SLinus Torvalds 12021da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12031da177e4SLinus Torvalds { 12048687b63aSAl Viro __be32 *p; 12051da177e4SLinus Torvalds 120613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12071da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 12081da177e4SLinus Torvalds case 0: 120934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 12101da177e4SLinus Torvalds break; 12111da177e4SLinus Torvalds default: 12121da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 121334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 12141da177e4SLinus Torvalds encode_createmode(xdr, arg); 12151da177e4SLinus Torvalds } 12161da177e4SLinus Torvalds } 12171da177e4SLinus Torvalds 1218bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 12191da177e4SLinus Torvalds { 12208687b63aSAl Viro __be32 *p; 12211da177e4SLinus Torvalds 122213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12231da177e4SLinus Torvalds switch (delegation_type) { 12241da177e4SLinus Torvalds case 0: 122534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 12261da177e4SLinus Torvalds break; 12271da177e4SLinus Torvalds case FMODE_READ: 122834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 12291da177e4SLinus Torvalds break; 12301da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 123134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 12321da177e4SLinus Torvalds break; 12331da177e4SLinus Torvalds default: 12341da177e4SLinus Torvalds BUG(); 12351da177e4SLinus Torvalds } 12361da177e4SLinus Torvalds } 12371da177e4SLinus Torvalds 12381da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12391da177e4SLinus Torvalds { 12408687b63aSAl Viro __be32 *p; 12411da177e4SLinus Torvalds 124213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 124334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 12441da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12451da177e4SLinus Torvalds } 12461da177e4SLinus Torvalds 1247bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12481da177e4SLinus Torvalds { 12498687b63aSAl Viro __be32 *p; 12501da177e4SLinus Torvalds 125113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 125234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 12531da177e4SLinus Torvalds encode_delegation_type(xdr, type); 12541da177e4SLinus Torvalds } 12551da177e4SLinus Torvalds 12561da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 12571da177e4SLinus Torvalds { 12588687b63aSAl Viro __be32 *p; 12591da177e4SLinus Torvalds 126013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1261e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 126234558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 12631da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12641da177e4SLinus Torvalds } 12651da177e4SLinus Torvalds 1266cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 12671da177e4SLinus Torvalds { 12681da177e4SLinus Torvalds encode_openhdr(xdr, arg); 12691da177e4SLinus Torvalds encode_opentype(xdr, arg); 12701da177e4SLinus Torvalds switch (arg->claim) { 12711da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 12721da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 12731da177e4SLinus Torvalds break; 12741da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 12751da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 12761da177e4SLinus Torvalds break; 12771da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 12781da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 12791da177e4SLinus Torvalds break; 12801da177e4SLinus Torvalds default: 12811da177e4SLinus Torvalds BUG(); 12821da177e4SLinus Torvalds } 1283d017931cSAndy Adamson hdr->nops++; 1284dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 12851da177e4SLinus Torvalds } 12861da177e4SLinus Torvalds 1287cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 12881da177e4SLinus Torvalds { 12898687b63aSAl Viro __be32 *p; 12901da177e4SLinus Torvalds 129113c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1292e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 129393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 129434558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1295d017931cSAndy Adamson hdr->nops++; 1296dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 12971da177e4SLinus Torvalds } 12981da177e4SLinus Torvalds 1299cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 13001da177e4SLinus Torvalds { 13018687b63aSAl Viro __be32 *p; 13021da177e4SLinus Torvalds 130313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1304e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 130593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 130634558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1307dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1308d017931cSAndy Adamson hdr->nops++; 1309dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 13101da177e4SLinus Torvalds } 13111da177e4SLinus Torvalds 1312cf8cdbe5SAndy Adamson static void 1313d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 13141da177e4SLinus Torvalds { 13151da177e4SLinus Torvalds int len = fh->size; 13168687b63aSAl Viro __be32 *p; 13171da177e4SLinus Torvalds 131813c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1319e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1320811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1321d017931cSAndy Adamson hdr->nops++; 1322dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 13231da177e4SLinus Torvalds } 13241da177e4SLinus Torvalds 1325cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 13261da177e4SLinus Torvalds { 13278687b63aSAl Viro __be32 *p; 13281da177e4SLinus Torvalds 132913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 133034558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1331d017931cSAndy Adamson hdr->nops++; 1332dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13331da177e4SLinus Torvalds } 13341da177e4SLinus Torvalds 1335f11ac8dbSTrond Myklebust static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx) 13361da177e4SLinus Torvalds { 13371da177e4SLinus Torvalds nfs4_stateid stateid; 13388687b63aSAl Viro __be32 *p; 13391da177e4SLinus Torvalds 134013c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 13411da177e4SLinus Torvalds if (ctx->state != NULL) { 1342f11ac8dbSTrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner); 134334558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 13441da177e4SLinus Torvalds } else 134534558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 13461da177e4SLinus Torvalds } 13471da177e4SLinus Torvalds 1348cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13491da177e4SLinus Torvalds { 13508687b63aSAl Viro __be32 *p; 13511da177e4SLinus Torvalds 135213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 135334558513SBenny Halevy *p = cpu_to_be32(OP_READ); 13541da177e4SLinus Torvalds 1355f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 13561da177e4SLinus Torvalds 135713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1358b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 135934558513SBenny Halevy *p = cpu_to_be32(args->count); 1360d017931cSAndy Adamson hdr->nops++; 1361dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 13621da177e4SLinus Torvalds } 13631da177e4SLinus Torvalds 1364cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 13651da177e4SLinus Torvalds { 136697d312d0SManoj Naik uint32_t attrs[2] = { 136797d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 136897d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 136997d312d0SManoj Naik }; 13708687b63aSAl Viro __be32 *p; 13711da177e4SLinus Torvalds 137213c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 1373e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READDIR); 1374b95be5a9SBenny Halevy p = xdr_encode_hyper(p, readdir->cookie); 137593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 1376e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ 1377e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count); 1378e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 137997d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 138097d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 138197d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 138297d312d0SManoj Naik else 138397d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1384e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 138534558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1386d017931cSAndy Adamson hdr->nops++; 1387dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 138844109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 138944109241SFred Isaman __func__, 1390eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1391eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1392eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1393eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1394eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 13951da177e4SLinus Torvalds } 13961da177e4SLinus Torvalds 1397cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 13981da177e4SLinus Torvalds { 13998687b63aSAl Viro __be32 *p; 14001da177e4SLinus Torvalds 140113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 140234558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1403d017931cSAndy Adamson hdr->nops++; 1404dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 14051da177e4SLinus Torvalds } 14061da177e4SLinus Torvalds 1407cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 14081da177e4SLinus Torvalds { 14098687b63aSAl Viro __be32 *p; 14101da177e4SLinus Torvalds 141113c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1412e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1413811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1414d017931cSAndy Adamson hdr->nops++; 1415dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 14161da177e4SLinus Torvalds } 14171da177e4SLinus Torvalds 1418cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 14191da177e4SLinus Torvalds { 14208687b63aSAl Viro __be32 *p; 14211da177e4SLinus Torvalds 1422811652bdSBenny Halevy p = reserve_space(xdr, 4); 1423811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1424811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1425811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1426d017931cSAndy Adamson hdr->nops++; 1427dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14281da177e4SLinus Torvalds } 14291da177e4SLinus Torvalds 1430cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14311da177e4SLinus Torvalds { 14328687b63aSAl Viro __be32 *p; 14331da177e4SLinus Torvalds 143413c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1435e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 143634558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1437d017931cSAndy Adamson hdr->nops++; 1438dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 14391da177e4SLinus Torvalds } 14401da177e4SLinus Torvalds 1441cf8cdbe5SAndy Adamson static void 1442d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 144356ae19f3STrond Myklebust { 14448687b63aSAl Viro __be32 *p; 144556ae19f3STrond Myklebust 144613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144734558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1448d017931cSAndy Adamson hdr->nops++; 1449dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 145056ae19f3STrond Myklebust } 145156ae19f3STrond Myklebust 145256ae19f3STrond Myklebust static int 1453d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 145423ec6965SJ. Bruce Fields { 14558687b63aSAl Viro __be32 *p; 145623ec6965SJ. Bruce Fields 145713c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1458e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 145934558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 146013c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1461e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 146234558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 146323ec6965SJ. Bruce Fields if (arg->acl_len % 4) 146423ec6965SJ. Bruce Fields return -EINVAL; 146513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146634558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 146723ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1468d017931cSAndy Adamson hdr->nops++; 1469dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 147023ec6965SJ. Bruce Fields return 0; 147123ec6965SJ. Bruce Fields } 147223ec6965SJ. Bruce Fields 1473cf8cdbe5SAndy Adamson static void 1474d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14751da177e4SLinus Torvalds { 14768687b63aSAl Viro __be32 *p; 14771da177e4SLinus Torvalds 147813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147934558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1480d017931cSAndy Adamson hdr->nops++; 1481dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 14821da177e4SLinus Torvalds } 14831da177e4SLinus Torvalds 1484cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 14851da177e4SLinus Torvalds { 14868687b63aSAl Viro __be32 *p; 14871da177e4SLinus Torvalds 148813c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1489e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 149034558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1491d017931cSAndy Adamson hdr->nops++; 1492dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1493cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 14941da177e4SLinus Torvalds } 14951da177e4SLinus Torvalds 1496cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 14971da177e4SLinus Torvalds { 14988687b63aSAl Viro __be32 *p; 14991da177e4SLinus Torvalds 150013c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1501e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 150234558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 15031da177e4SLinus Torvalds 15041da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 150513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 150634558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 15071da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 15081da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 150913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 151034558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1511d017931cSAndy Adamson hdr->nops++; 1512dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 15131da177e4SLinus Torvalds } 15141da177e4SLinus Torvalds 1515bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 15161da177e4SLinus Torvalds { 15178687b63aSAl Viro __be32 *p; 15181da177e4SLinus Torvalds 151913c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1520e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1521bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1522bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1523d017931cSAndy Adamson hdr->nops++; 1524dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15251da177e4SLinus Torvalds } 15261da177e4SLinus Torvalds 1527cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15281da177e4SLinus Torvalds { 15298687b63aSAl Viro __be32 *p; 15301da177e4SLinus Torvalds 153113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 153234558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 15331da177e4SLinus Torvalds 1534f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 15351da177e4SLinus Torvalds 153613c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1537b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1538e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 153934558513SBenny Halevy *p = cpu_to_be32(args->count); 15401da177e4SLinus Torvalds 15411da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1542d017931cSAndy Adamson hdr->nops++; 1543dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 15441da177e4SLinus Torvalds } 15451da177e4SLinus Torvalds 1546cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15471da177e4SLinus Torvalds { 15488687b63aSAl Viro __be32 *p; 15491da177e4SLinus Torvalds 155013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 15511da177e4SLinus Torvalds 1552e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 155334558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1554d017931cSAndy Adamson hdr->nops++; 1555dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15561da177e4SLinus Torvalds } 15579b7b9fccSAndy Adamson 155899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15599b7b9fccSAndy Adamson /* NFSv4.1 operations */ 156099fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 156199fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 156299fe60d0SBenny Halevy struct compound_hdr *hdr) 156399fe60d0SBenny Halevy { 156499fe60d0SBenny Halevy __be32 *p; 156599fe60d0SBenny Halevy 156613c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1567e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 156834558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 156999fe60d0SBenny Halevy 157099fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 157199fe60d0SBenny Halevy 157213c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1573e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1574e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 157534558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 157699fe60d0SBenny Halevy hdr->nops++; 157799fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 157899fe60d0SBenny Halevy } 1579fc931582SAndy Adamson 1580fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1581fc931582SAndy Adamson struct nfs41_create_session_args *args, 1582fc931582SAndy Adamson struct compound_hdr *hdr) 1583fc931582SAndy Adamson { 1584fc931582SAndy Adamson __be32 *p; 1585fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1586fc931582SAndy Adamson uint32_t len; 1587fc931582SAndy Adamson struct nfs_client *clp = args->client; 15888e0d46e1SMike Sager u32 max_resp_sz_cached; 15898e0d46e1SMike Sager 15908e0d46e1SMike Sager /* 15918e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 15928e0d46e1SMike Sager * 2 is the verifier. 15938e0d46e1SMike Sager */ 15948e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 15958e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1596fc931582SAndy Adamson 1597fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1598fc931582SAndy Adamson clp->cl_ipaddr); 159942edd698SBenny Halevy 160013c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1601e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1602b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1603e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1604e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1605fc931582SAndy Adamson 1606fc931582SAndy Adamson /* Fore Channel */ 1607e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1608e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1609e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 16108e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1611e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1612e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1613e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1614fc931582SAndy Adamson 1615fc931582SAndy Adamson /* Back Channel */ 1616e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1617e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1618e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1619e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1620e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1621e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1622e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1623fc931582SAndy Adamson 1624e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1625e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1626e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1627fc931582SAndy Adamson 1628fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1629e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1630811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1631e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1632e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 163334558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1634fc931582SAndy Adamson hdr->nops++; 1635fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1636fc931582SAndy Adamson } 16370f3e66c6SAndy Adamson 16380f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16390f3e66c6SAndy Adamson struct nfs4_session *session, 16400f3e66c6SAndy Adamson struct compound_hdr *hdr) 16410f3e66c6SAndy Adamson { 16420f3e66c6SAndy Adamson __be32 *p; 164313c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1644e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 164534558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 16460f3e66c6SAndy Adamson hdr->nops++; 16470f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 16480f3e66c6SAndy Adamson } 164918019753SRicardo Labiaga 165018019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 165118019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 165218019753SRicardo Labiaga struct compound_hdr *hdr) 165318019753SRicardo Labiaga { 165418019753SRicardo Labiaga __be32 *p; 165518019753SRicardo Labiaga 165618019753SRicardo Labiaga p = reserve_space(xdr, 8); 165718019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 165818019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 165918019753SRicardo Labiaga hdr->nops++; 166018019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 166118019753SRicardo Labiaga } 166299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 166399fe60d0SBenny Halevy 16649b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 16659b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 16669b7b9fccSAndy Adamson struct compound_hdr *hdr) 16679b7b9fccSAndy Adamson { 16689b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 16699b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1670fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1671fc01cea9SAndy Adamson struct nfs4_slot *slot; 1672fc01cea9SAndy Adamson __be32 *p; 16739b7b9fccSAndy Adamson 16749b7b9fccSAndy Adamson if (!session) 16759b7b9fccSAndy Adamson return; 16769b7b9fccSAndy Adamson 1677fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1678fc01cea9SAndy Adamson 1679fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1680fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1681fc01cea9SAndy Adamson 168213c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1683e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1684fc01cea9SAndy Adamson 1685fc01cea9SAndy Adamson /* 1686fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1687fc01cea9SAndy Adamson */ 1688fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1689fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1690fc01cea9SAndy Adamson __func__, 1691fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1692fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1693fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1694fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1695fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1696fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 169793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1698e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1699e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1700e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 170134558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 17029b7b9fccSAndy Adamson hdr->nops++; 17039b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 17049b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 17059b7b9fccSAndy Adamson } 17069b7b9fccSAndy Adamson 17071da177e4SLinus Torvalds /* 17081da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 17091da177e4SLinus Torvalds */ 17101da177e4SLinus Torvalds 171166cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 171266cc0429SBenny Halevy { 171366cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 171466cc0429SBenny Halevy if (args->sa_session) 1715a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 171666cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 171766cc0429SBenny Halevy return 0; 171866cc0429SBenny Halevy } 171966cc0429SBenny Halevy 17201da177e4SLinus Torvalds /* 17211da177e4SLinus Torvalds * Encode an ACCESS request 17221da177e4SLinus Torvalds */ 17238687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 17241da177e4SLinus Torvalds { 17251da177e4SLinus Torvalds struct xdr_stream xdr; 17261da177e4SLinus Torvalds struct compound_hdr hdr = { 172766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17281da177e4SLinus Torvalds }; 17291da177e4SLinus Torvalds 17301da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17310c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17329b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1733cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1734cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1735cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1736d017931cSAndy Adamson encode_nops(&hdr); 1737cf8cdbe5SAndy Adamson return 0; 17381da177e4SLinus Torvalds } 17391da177e4SLinus Torvalds 17401da177e4SLinus Torvalds /* 17411da177e4SLinus Torvalds * Encode LOOKUP request 17421da177e4SLinus Torvalds */ 17438687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 17441da177e4SLinus Torvalds { 17451da177e4SLinus Torvalds struct xdr_stream xdr; 17461da177e4SLinus Torvalds struct compound_hdr hdr = { 174766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17481da177e4SLinus Torvalds }; 17491da177e4SLinus Torvalds 17501da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17510c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17529b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1753cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1754cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1755cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1756cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1757d017931cSAndy Adamson encode_nops(&hdr); 1758cf8cdbe5SAndy Adamson return 0; 17591da177e4SLinus Torvalds } 17601da177e4SLinus Torvalds 17611da177e4SLinus Torvalds /* 17621da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 17631da177e4SLinus Torvalds */ 17648687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 17651da177e4SLinus Torvalds { 17661da177e4SLinus Torvalds struct xdr_stream xdr; 17671da177e4SLinus Torvalds struct compound_hdr hdr = { 176866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17691da177e4SLinus Torvalds }; 17701da177e4SLinus Torvalds 17711da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17720c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17739b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1774cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1775cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1776cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1777d017931cSAndy Adamson encode_nops(&hdr); 1778cf8cdbe5SAndy Adamson return 0; 17791da177e4SLinus Torvalds } 17801da177e4SLinus Torvalds 17811da177e4SLinus Torvalds /* 17821da177e4SLinus Torvalds * Encode REMOVE request 17831da177e4SLinus Torvalds */ 17844fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 17851da177e4SLinus Torvalds { 17861da177e4SLinus Torvalds struct xdr_stream xdr; 17871da177e4SLinus Torvalds struct compound_hdr hdr = { 178866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17891da177e4SLinus Torvalds }; 17901da177e4SLinus Torvalds 17911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17920c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17939b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1794cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1795cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1796cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1797d017931cSAndy Adamson encode_nops(&hdr); 1798cf8cdbe5SAndy Adamson return 0; 17991da177e4SLinus Torvalds } 18001da177e4SLinus Torvalds 18011da177e4SLinus Torvalds /* 18021da177e4SLinus Torvalds * Encode RENAME request 18031da177e4SLinus Torvalds */ 18048687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 18051da177e4SLinus Torvalds { 18061da177e4SLinus Torvalds struct xdr_stream xdr; 18071da177e4SLinus Torvalds struct compound_hdr hdr = { 180866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18091da177e4SLinus Torvalds }; 18101da177e4SLinus Torvalds 18111da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18120c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18139b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1814cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1815cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1816cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1817cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1818cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1819cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1820cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1821d017931cSAndy Adamson encode_nops(&hdr); 1822cf8cdbe5SAndy Adamson return 0; 18231da177e4SLinus Torvalds } 18241da177e4SLinus Torvalds 18251da177e4SLinus Torvalds /* 18261da177e4SLinus Torvalds * Encode LINK request 18271da177e4SLinus Torvalds */ 18288687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 18291da177e4SLinus Torvalds { 18301da177e4SLinus Torvalds struct xdr_stream xdr; 18311da177e4SLinus Torvalds struct compound_hdr hdr = { 183266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18331da177e4SLinus Torvalds }; 18341da177e4SLinus Torvalds 18351da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18360c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18379b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1838cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1839cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1840cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1841cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1842cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1843cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1844cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1845d017931cSAndy Adamson encode_nops(&hdr); 1846cf8cdbe5SAndy Adamson return 0; 18471da177e4SLinus Torvalds } 18481da177e4SLinus Torvalds 18491da177e4SLinus Torvalds /* 18501da177e4SLinus Torvalds * Encode CREATE request 18511da177e4SLinus Torvalds */ 18528687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18531da177e4SLinus Torvalds { 18541da177e4SLinus Torvalds struct xdr_stream xdr; 18551da177e4SLinus Torvalds struct compound_hdr hdr = { 185666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18571da177e4SLinus Torvalds }; 18581da177e4SLinus Torvalds 18591da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18600c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18619b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1862cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1863cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1864cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1865cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1866cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1867cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1868cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1869d017931cSAndy Adamson encode_nops(&hdr); 1870cf8cdbe5SAndy Adamson return 0; 18711da177e4SLinus Torvalds } 18721da177e4SLinus Torvalds 18731da177e4SLinus Torvalds /* 18741da177e4SLinus Torvalds * Encode SYMLINK request 18751da177e4SLinus Torvalds */ 18768687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18771da177e4SLinus Torvalds { 18781da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 18791da177e4SLinus Torvalds } 18801da177e4SLinus Torvalds 18811da177e4SLinus Torvalds /* 18821da177e4SLinus Torvalds * Encode GETATTR request 18831da177e4SLinus Torvalds */ 18848687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 18851da177e4SLinus Torvalds { 18861da177e4SLinus Torvalds struct xdr_stream xdr; 18871da177e4SLinus Torvalds struct compound_hdr hdr = { 188866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18891da177e4SLinus Torvalds }; 18901da177e4SLinus Torvalds 18911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18920c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18939b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1894cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1895cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1896d017931cSAndy Adamson encode_nops(&hdr); 1897cf8cdbe5SAndy Adamson return 0; 18981da177e4SLinus Torvalds } 18991da177e4SLinus Torvalds 19001da177e4SLinus Torvalds /* 19011da177e4SLinus Torvalds * Encode a CLOSE request 19021da177e4SLinus Torvalds */ 19038687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19041da177e4SLinus Torvalds { 19051da177e4SLinus Torvalds struct xdr_stream xdr; 19061da177e4SLinus Torvalds struct compound_hdr hdr = { 190766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19081da177e4SLinus Torvalds }; 19091da177e4SLinus Torvalds 19101da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19110c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19129b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1913cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1914cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1915cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1916d017931cSAndy Adamson encode_nops(&hdr); 1917cf8cdbe5SAndy Adamson return 0; 19181da177e4SLinus Torvalds } 19191da177e4SLinus Torvalds 19201da177e4SLinus Torvalds /* 19211da177e4SLinus Torvalds * Encode an OPEN request 19221da177e4SLinus Torvalds */ 19238687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19241da177e4SLinus Torvalds { 19251da177e4SLinus Torvalds struct xdr_stream xdr; 19261da177e4SLinus Torvalds struct compound_hdr hdr = { 192766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19281da177e4SLinus Torvalds }; 19291da177e4SLinus Torvalds 19301da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19310c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19329b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1933cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1934cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1935cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1936cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1937cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1938cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1939cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1940d017931cSAndy Adamson encode_nops(&hdr); 1941cf8cdbe5SAndy Adamson return 0; 19421da177e4SLinus Torvalds } 19431da177e4SLinus Torvalds 19441da177e4SLinus Torvalds /* 19451da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 19461da177e4SLinus Torvalds */ 19478687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 19481da177e4SLinus Torvalds { 19491da177e4SLinus Torvalds struct xdr_stream xdr; 19501da177e4SLinus Torvalds struct compound_hdr hdr = { 1951d017931cSAndy Adamson .nops = 0, 19521da177e4SLinus Torvalds }; 19531da177e4SLinus Torvalds 19541da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19550c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1956cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1957cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1958d017931cSAndy Adamson encode_nops(&hdr); 1959cf8cdbe5SAndy Adamson return 0; 19601da177e4SLinus Torvalds } 19611da177e4SLinus Torvalds 19621da177e4SLinus Torvalds /* 19631da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 19641da177e4SLinus Torvalds */ 19658687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19661da177e4SLinus Torvalds { 19671da177e4SLinus Torvalds struct xdr_stream xdr; 19681da177e4SLinus Torvalds struct compound_hdr hdr = { 196966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19701da177e4SLinus Torvalds }; 19711da177e4SLinus Torvalds 19721da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19730c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19749b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1975cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1976cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1977cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1978d017931cSAndy Adamson encode_nops(&hdr); 1979cf8cdbe5SAndy Adamson return 0; 19801da177e4SLinus Torvalds } 19811da177e4SLinus Torvalds 19821da177e4SLinus Torvalds /* 19831da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 19841da177e4SLinus Torvalds */ 19858687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19861da177e4SLinus Torvalds { 19871da177e4SLinus Torvalds struct xdr_stream xdr; 19881da177e4SLinus Torvalds struct compound_hdr hdr = { 198966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19901da177e4SLinus Torvalds }; 19911da177e4SLinus Torvalds 19921da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19930c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19949b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1995cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1996cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1997cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1998d017931cSAndy Adamson encode_nops(&hdr); 1999cf8cdbe5SAndy Adamson return 0; 20001da177e4SLinus Torvalds } 20011da177e4SLinus Torvalds 20021da177e4SLinus Torvalds /* 20031da177e4SLinus Torvalds * Encode a LOCK request 20041da177e4SLinus Torvalds */ 20058687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 20061da177e4SLinus Torvalds { 20071da177e4SLinus Torvalds struct xdr_stream xdr; 20081da177e4SLinus Torvalds struct compound_hdr hdr = { 200966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20101da177e4SLinus Torvalds }; 20111da177e4SLinus Torvalds 20121da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20130c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20149b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2015cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2016cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 2017d017931cSAndy Adamson encode_nops(&hdr); 2018cf8cdbe5SAndy Adamson return 0; 20191da177e4SLinus Torvalds } 20201da177e4SLinus Torvalds 20211da177e4SLinus Torvalds /* 20221da177e4SLinus Torvalds * Encode a LOCKT request 20231da177e4SLinus Torvalds */ 20248687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 20251da177e4SLinus Torvalds { 20261da177e4SLinus Torvalds struct xdr_stream xdr; 20271da177e4SLinus Torvalds struct compound_hdr hdr = { 202866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20291da177e4SLinus Torvalds }; 20301da177e4SLinus Torvalds 20311da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20320c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20339b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2034cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2035cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 2036d017931cSAndy Adamson encode_nops(&hdr); 2037cf8cdbe5SAndy Adamson return 0; 20381da177e4SLinus Torvalds } 20391da177e4SLinus Torvalds 20401da177e4SLinus Torvalds /* 20411da177e4SLinus Torvalds * Encode a LOCKU request 20421da177e4SLinus Torvalds */ 20438687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 20441da177e4SLinus Torvalds { 20451da177e4SLinus Torvalds struct xdr_stream xdr; 20461da177e4SLinus Torvalds struct compound_hdr hdr = { 204766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20481da177e4SLinus Torvalds }; 20491da177e4SLinus Torvalds 20501da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20510c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20529b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2053cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2054cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 2055d017931cSAndy Adamson encode_nops(&hdr); 2056cf8cdbe5SAndy Adamson return 0; 20571da177e4SLinus Torvalds } 20581da177e4SLinus Torvalds 20591da177e4SLinus Torvalds /* 20601da177e4SLinus Torvalds * Encode a READLINK request 20611da177e4SLinus Torvalds */ 20628687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 20631da177e4SLinus Torvalds { 20641da177e4SLinus Torvalds struct xdr_stream xdr; 20651da177e4SLinus Torvalds struct compound_hdr hdr = { 206666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20671da177e4SLinus Torvalds }; 20681da177e4SLinus Torvalds 20691da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20700c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20719b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2072cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2073cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2074e3a535e1STrond Myklebust 207528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2076e3a535e1STrond Myklebust args->pgbase, args->pglen); 2077d017931cSAndy Adamson encode_nops(&hdr); 2078cf8cdbe5SAndy Adamson return 0; 20791da177e4SLinus Torvalds } 20801da177e4SLinus Torvalds 20811da177e4SLinus Torvalds /* 20821da177e4SLinus Torvalds * Encode a READDIR request 20831da177e4SLinus Torvalds */ 20848687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 20851da177e4SLinus Torvalds { 20861da177e4SLinus Torvalds struct xdr_stream xdr; 20871da177e4SLinus Torvalds struct compound_hdr hdr = { 208866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20891da177e4SLinus Torvalds }; 20901da177e4SLinus Torvalds 20911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20920c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20939b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2094cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2095cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2096d6ac02dfSTrond Myklebust 209728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2098d6ac02dfSTrond Myklebust args->pgbase, args->count); 2099d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 210028f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2101d6ac02dfSTrond Myklebust args->pgbase, args->count); 2102d017931cSAndy Adamson encode_nops(&hdr); 2103cf8cdbe5SAndy Adamson return 0; 21041da177e4SLinus Torvalds } 21051da177e4SLinus Torvalds 21061da177e4SLinus Torvalds /* 21071da177e4SLinus Torvalds * Encode a READ request 21081da177e4SLinus Torvalds */ 21098687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 21101da177e4SLinus Torvalds { 21111da177e4SLinus Torvalds struct xdr_stream xdr; 21121da177e4SLinus Torvalds struct compound_hdr hdr = { 211366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21141da177e4SLinus Torvalds }; 21151da177e4SLinus Torvalds 21161da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21170c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21189b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2119cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2120cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 21211da177e4SLinus Torvalds 212228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 21231da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 21244f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2125d017931cSAndy Adamson encode_nops(&hdr); 2126cf8cdbe5SAndy Adamson return 0; 21271da177e4SLinus Torvalds } 21281da177e4SLinus Torvalds 21291da177e4SLinus Torvalds /* 21301da177e4SLinus Torvalds * Encode an SETATTR request 21311da177e4SLinus Torvalds */ 21328687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 21331da177e4SLinus Torvalds { 21341da177e4SLinus Torvalds struct xdr_stream xdr; 21351da177e4SLinus Torvalds struct compound_hdr hdr = { 213666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21371da177e4SLinus Torvalds }; 21381da177e4SLinus Torvalds 21391da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21400c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21419b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2142cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2143cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2144cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2145d017931cSAndy Adamson encode_nops(&hdr); 2146cf8cdbe5SAndy Adamson return 0; 21471da177e4SLinus Torvalds } 21481da177e4SLinus Torvalds 21491da177e4SLinus Torvalds /* 2150029d105eSJ. Bruce Fields * Encode a GETACL request 2151029d105eSJ. Bruce Fields */ 2152029d105eSJ. Bruce Fields static int 21538687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2154029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2155029d105eSJ. Bruce Fields { 2156029d105eSJ. Bruce Fields struct xdr_stream xdr; 2157029d105eSJ. Bruce Fields struct compound_hdr hdr = { 215866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2159029d105eSJ. Bruce Fields }; 216028f56694SBenny Halevy uint32_t replen; 2161029d105eSJ. Bruce Fields 2162029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21630c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21649b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2165cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2166d327cf74SJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; 2167cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2168cf8cdbe5SAndy Adamson 216928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2170029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2171d017931cSAndy Adamson encode_nops(&hdr); 2172cf8cdbe5SAndy Adamson return 0; 2173029d105eSJ. Bruce Fields } 2174029d105eSJ. Bruce Fields 2175029d105eSJ. Bruce Fields /* 21761da177e4SLinus Torvalds * Encode a WRITE request 21771da177e4SLinus Torvalds */ 21788687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21791da177e4SLinus Torvalds { 21801da177e4SLinus Torvalds struct xdr_stream xdr; 21811da177e4SLinus Torvalds struct compound_hdr hdr = { 218266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21831da177e4SLinus Torvalds }; 21841da177e4SLinus Torvalds 21851da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21860c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21879b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2188cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2189cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 21904f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2191cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2192d017931cSAndy Adamson encode_nops(&hdr); 2193cf8cdbe5SAndy Adamson return 0; 21941da177e4SLinus Torvalds } 21951da177e4SLinus Torvalds 21961da177e4SLinus Torvalds /* 21971da177e4SLinus Torvalds * a COMMIT request 21981da177e4SLinus Torvalds */ 21998687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 22001da177e4SLinus Torvalds { 22011da177e4SLinus Torvalds struct xdr_stream xdr; 22021da177e4SLinus Torvalds struct compound_hdr hdr = { 220366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22041da177e4SLinus Torvalds }; 22051da177e4SLinus Torvalds 22061da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22070c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22089b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2209cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2210cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2211cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2212d017931cSAndy Adamson encode_nops(&hdr); 2213cf8cdbe5SAndy Adamson return 0; 22141da177e4SLinus Torvalds } 22151da177e4SLinus Torvalds 22161da177e4SLinus Torvalds /* 22171da177e4SLinus Torvalds * FSINFO request 22181da177e4SLinus Torvalds */ 22198687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 22201da177e4SLinus Torvalds { 22211da177e4SLinus Torvalds struct xdr_stream xdr; 22221da177e4SLinus Torvalds struct compound_hdr hdr = { 222366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22241da177e4SLinus Torvalds }; 22251da177e4SLinus Torvalds 22261da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22270c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22289b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2229cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2230cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2231d017931cSAndy Adamson encode_nops(&hdr); 2232cf8cdbe5SAndy Adamson return 0; 22331da177e4SLinus Torvalds } 22341da177e4SLinus Torvalds 22351da177e4SLinus Torvalds /* 22361da177e4SLinus Torvalds * a PATHCONF request 22371da177e4SLinus Torvalds */ 22388687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 22391da177e4SLinus Torvalds { 22401da177e4SLinus Torvalds struct xdr_stream xdr; 22411da177e4SLinus Torvalds struct compound_hdr hdr = { 224266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22431da177e4SLinus Torvalds }; 22441da177e4SLinus Torvalds 22451da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22460c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22479b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2248cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2249cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2250d017931cSAndy Adamson &hdr); 2251d017931cSAndy Adamson encode_nops(&hdr); 2252cf8cdbe5SAndy Adamson return 0; 22531da177e4SLinus Torvalds } 22541da177e4SLinus Torvalds 22551da177e4SLinus Torvalds /* 22561da177e4SLinus Torvalds * a STATFS request 22571da177e4SLinus Torvalds */ 22588687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 22591da177e4SLinus Torvalds { 22601da177e4SLinus Torvalds struct xdr_stream xdr; 22611da177e4SLinus Torvalds struct compound_hdr hdr = { 226266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22631da177e4SLinus Torvalds }; 22641da177e4SLinus Torvalds 22651da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22660c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22679b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2268cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2269cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2270d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2271d017931cSAndy Adamson encode_nops(&hdr); 2272cf8cdbe5SAndy Adamson return 0; 22731da177e4SLinus Torvalds } 22741da177e4SLinus Torvalds 22751da177e4SLinus Torvalds /* 22761da177e4SLinus Torvalds * GETATTR_BITMAP request 22771da177e4SLinus Torvalds */ 227843652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 227943652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 22801da177e4SLinus Torvalds { 22811da177e4SLinus Torvalds struct xdr_stream xdr; 22821da177e4SLinus Torvalds struct compound_hdr hdr = { 228366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22841da177e4SLinus Torvalds }; 22851da177e4SLinus Torvalds 22861da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22870c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22889b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 228943652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2290cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 22911da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 22921da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2293d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2294d017931cSAndy Adamson encode_nops(&hdr); 2295cf8cdbe5SAndy Adamson return 0; 22961da177e4SLinus Torvalds } 22971da177e4SLinus Torvalds 22981da177e4SLinus Torvalds /* 22991da177e4SLinus Torvalds * a RENEW request 23001da177e4SLinus Torvalds */ 23018687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 23021da177e4SLinus Torvalds { 23031da177e4SLinus Torvalds struct xdr_stream xdr; 23041da177e4SLinus Torvalds struct compound_hdr hdr = { 2305d017931cSAndy Adamson .nops = 0, 23061da177e4SLinus Torvalds }; 23071da177e4SLinus Torvalds 23081da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23090c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2310cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2311d017931cSAndy Adamson encode_nops(&hdr); 2312cf8cdbe5SAndy Adamson return 0; 23131da177e4SLinus Torvalds } 23141da177e4SLinus Torvalds 23151da177e4SLinus Torvalds /* 23161da177e4SLinus Torvalds * a SETCLIENTID request 23171da177e4SLinus Torvalds */ 23188687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 23191da177e4SLinus Torvalds { 23201da177e4SLinus Torvalds struct xdr_stream xdr; 23211da177e4SLinus Torvalds struct compound_hdr hdr = { 2322d017931cSAndy Adamson .nops = 0, 23231da177e4SLinus Torvalds }; 23241da177e4SLinus Torvalds 23251da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23260c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2327cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2328d017931cSAndy Adamson encode_nops(&hdr); 2329cf8cdbe5SAndy Adamson return 0; 23301da177e4SLinus Torvalds } 23311da177e4SLinus Torvalds 23321da177e4SLinus Torvalds /* 23331da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 23341da177e4SLinus Torvalds */ 2335bb8b27e5STrond Myklebust static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid_res *arg) 23361da177e4SLinus Torvalds { 23371da177e4SLinus Torvalds struct xdr_stream xdr; 23381da177e4SLinus Torvalds struct compound_hdr hdr = { 2339d017931cSAndy Adamson .nops = 0, 23401da177e4SLinus Torvalds }; 23411da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 23421da177e4SLinus Torvalds 23431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23440c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2345bb8b27e5STrond Myklebust encode_setclientid_confirm(&xdr, arg, &hdr); 2346cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2347cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2348d017931cSAndy Adamson encode_nops(&hdr); 2349cf8cdbe5SAndy Adamson return 0; 23501da177e4SLinus Torvalds } 23511da177e4SLinus Torvalds 23521da177e4SLinus Torvalds /* 23531da177e4SLinus Torvalds * DELEGRETURN request 23541da177e4SLinus Torvalds */ 23558687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 23561da177e4SLinus Torvalds { 23571da177e4SLinus Torvalds struct xdr_stream xdr; 23581da177e4SLinus Torvalds struct compound_hdr hdr = { 235966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23601da177e4SLinus Torvalds }; 23611da177e4SLinus Torvalds 23621da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23630c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23649b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2365cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2366cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2367cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2368d017931cSAndy Adamson encode_nops(&hdr); 2369cf8cdbe5SAndy Adamson return 0; 23701da177e4SLinus Torvalds } 23711da177e4SLinus Torvalds 23721da177e4SLinus Torvalds /* 2373683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2374683b57b4STrond Myklebust */ 23758687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2376683b57b4STrond Myklebust { 2377683b57b4STrond Myklebust struct xdr_stream xdr; 2378683b57b4STrond Myklebust struct compound_hdr hdr = { 237966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2380683b57b4STrond Myklebust }; 238128f56694SBenny Halevy uint32_t replen; 2382683b57b4STrond Myklebust 2383683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23840c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23859b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2386cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2387cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 238828f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2389cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2390cf8cdbe5SAndy Adamson 239128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2392683b57b4STrond Myklebust 0, PAGE_SIZE); 2393d017931cSAndy Adamson encode_nops(&hdr); 2394cf8cdbe5SAndy Adamson return 0; 2395683b57b4STrond Myklebust } 2396683b57b4STrond Myklebust 239799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 239899fe60d0SBenny Halevy /* 239999fe60d0SBenny Halevy * EXCHANGE_ID request 240099fe60d0SBenny Halevy */ 240199fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 240299fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 240399fe60d0SBenny Halevy { 240499fe60d0SBenny Halevy struct xdr_stream xdr; 240599fe60d0SBenny Halevy struct compound_hdr hdr = { 2406a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 240799fe60d0SBenny Halevy }; 240899fe60d0SBenny Halevy 240999fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 241099fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 241199fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 241299fe60d0SBenny Halevy encode_nops(&hdr); 241399fe60d0SBenny Halevy return 0; 241499fe60d0SBenny Halevy } 24152050f0ccSAndy Adamson 24162050f0ccSAndy Adamson /* 2417fc931582SAndy Adamson * a CREATE_SESSION request 2418fc931582SAndy Adamson */ 2419fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2420fc931582SAndy Adamson struct nfs41_create_session_args *args) 2421fc931582SAndy Adamson { 2422fc931582SAndy Adamson struct xdr_stream xdr; 2423fc931582SAndy Adamson struct compound_hdr hdr = { 2424a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2425fc931582SAndy Adamson }; 2426fc931582SAndy Adamson 2427fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2428fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2429fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2430fc931582SAndy Adamson encode_nops(&hdr); 2431fc931582SAndy Adamson return 0; 2432fc931582SAndy Adamson } 2433fc931582SAndy Adamson 2434fc931582SAndy Adamson /* 24350f3e66c6SAndy Adamson * a DESTROY_SESSION request 24360f3e66c6SAndy Adamson */ 24370f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 24380f3e66c6SAndy Adamson struct nfs4_session *session) 24390f3e66c6SAndy Adamson { 24400f3e66c6SAndy Adamson struct xdr_stream xdr; 24410f3e66c6SAndy Adamson struct compound_hdr hdr = { 2442a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 24430f3e66c6SAndy Adamson }; 24440f3e66c6SAndy Adamson 24450f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24460f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24470f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 24480f3e66c6SAndy Adamson encode_nops(&hdr); 24490f3e66c6SAndy Adamson return 0; 24500f3e66c6SAndy Adamson } 24510f3e66c6SAndy Adamson 24520f3e66c6SAndy Adamson /* 2453fc01cea9SAndy Adamson * a SEQUENCE request 2454fc01cea9SAndy Adamson */ 2455fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2456fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2457fc01cea9SAndy Adamson { 2458fc01cea9SAndy Adamson struct xdr_stream xdr; 2459fc01cea9SAndy Adamson struct compound_hdr hdr = { 2460fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2461fc01cea9SAndy Adamson }; 2462fc01cea9SAndy Adamson 2463fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2464fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2465fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2466fc01cea9SAndy Adamson encode_nops(&hdr); 2467fc01cea9SAndy Adamson return 0; 2468fc01cea9SAndy Adamson } 2469fc01cea9SAndy Adamson 2470fc01cea9SAndy Adamson /* 24712050f0ccSAndy Adamson * a GET_LEASE_TIME request 24722050f0ccSAndy Adamson */ 24732050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 24742050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 24752050f0ccSAndy Adamson { 24762050f0ccSAndy Adamson struct xdr_stream xdr; 24772050f0ccSAndy Adamson struct compound_hdr hdr = { 24782050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 24792050f0ccSAndy Adamson }; 24802050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24812050f0ccSAndy Adamson 24822050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24832050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24842050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 24852050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 24862050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 24872050f0ccSAndy Adamson encode_nops(&hdr); 24882050f0ccSAndy Adamson return 0; 24892050f0ccSAndy Adamson } 249018019753SRicardo Labiaga 249118019753SRicardo Labiaga /* 249218019753SRicardo Labiaga * a RECLAIM_COMPLETE request 249318019753SRicardo Labiaga */ 249418019753SRicardo Labiaga static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p, 249518019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 249618019753SRicardo Labiaga { 249718019753SRicardo Labiaga struct xdr_stream xdr; 249818019753SRicardo Labiaga struct compound_hdr hdr = { 249918019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 250018019753SRicardo Labiaga }; 250118019753SRicardo Labiaga 250218019753SRicardo Labiaga xdr_init_encode(&xdr, &req->rq_snd_buf, p); 250318019753SRicardo Labiaga encode_compound_hdr(&xdr, req, &hdr); 250418019753SRicardo Labiaga encode_sequence(&xdr, &args->seq_args, &hdr); 250518019753SRicardo Labiaga encode_reclaim_complete(&xdr, args, &hdr); 250618019753SRicardo Labiaga encode_nops(&hdr); 250718019753SRicardo Labiaga return 0; 250818019753SRicardo Labiaga } 250918019753SRicardo Labiaga 251099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 251199fe60d0SBenny Halevy 2512686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2513686841b3SBenny Halevy { 2514686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2515686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2516686841b3SBenny Halevy func, xdr->end - xdr->p); 2517686841b3SBenny Halevy } 25181da177e4SLinus Torvalds 2519683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 25201da177e4SLinus Torvalds { 25218687b63aSAl Viro __be32 *p; 25221da177e4SLinus Torvalds 2523c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2524c0eae66eSBenny Halevy if (unlikely(!p)) 2525c0eae66eSBenny Halevy goto out_overflow; 2526cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2527c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2528c0eae66eSBenny Halevy if (unlikely(!p)) 2529c0eae66eSBenny Halevy goto out_overflow; 25301da177e4SLinus Torvalds *string = (char *)p; 25311da177e4SLinus Torvalds return 0; 2532c0eae66eSBenny Halevy out_overflow: 2533c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2534c0eae66eSBenny Halevy return -EIO; 25351da177e4SLinus Torvalds } 25361da177e4SLinus Torvalds 25371da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 25381da177e4SLinus Torvalds { 25398687b63aSAl Viro __be32 *p; 25401da177e4SLinus Torvalds 2541c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2542c0eae66eSBenny Halevy if (unlikely(!p)) 2543c0eae66eSBenny Halevy goto out_overflow; 25446f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2545cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 25461da177e4SLinus Torvalds 2547c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2548c0eae66eSBenny Halevy if (unlikely(!p)) 2549c0eae66eSBenny Halevy goto out_overflow; 25501da177e4SLinus Torvalds hdr->tag = (char *)p; 25511da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2552cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2553aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2554aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 25551da177e4SLinus Torvalds return 0; 2556c0eae66eSBenny Halevy out_overflow: 2557c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2558c0eae66eSBenny Halevy return -EIO; 25591da177e4SLinus Torvalds } 25601da177e4SLinus Torvalds 25611da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 25621da177e4SLinus Torvalds { 25638687b63aSAl Viro __be32 *p; 25641da177e4SLinus Torvalds uint32_t opnum; 25651da177e4SLinus Torvalds int32_t nfserr; 25661da177e4SLinus Torvalds 2567c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2568c0eae66eSBenny Halevy if (unlikely(!p)) 2569c0eae66eSBenny Halevy goto out_overflow; 25706f723f77SBenny Halevy opnum = be32_to_cpup(p++); 25711da177e4SLinus Torvalds if (opnum != expected) { 2572fe82a183SChuck Lever dprintk("nfs: Server returned operation" 25731da177e4SLinus Torvalds " %d but we issued a request for %d\n", 25741da177e4SLinus Torvalds opnum, expected); 25751da177e4SLinus Torvalds return -EIO; 25761da177e4SLinus Torvalds } 2577cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 25781da177e4SLinus Torvalds if (nfserr != NFS_OK) 2579856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 25801da177e4SLinus Torvalds return 0; 2581c0eae66eSBenny Halevy out_overflow: 2582c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2583c0eae66eSBenny Halevy return -EIO; 25841da177e4SLinus Torvalds } 25851da177e4SLinus Torvalds 25861da177e4SLinus Torvalds /* Dummy routine */ 2587adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 25881da177e4SLinus Torvalds { 25898687b63aSAl Viro __be32 *p; 2590683b57b4STrond Myklebust unsigned int strlen; 25911da177e4SLinus Torvalds char *str; 25921da177e4SLinus Torvalds 2593c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2594c0eae66eSBenny Halevy if (likely(p)) 25951da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2596c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2597c0eae66eSBenny Halevy return -EIO; 25981da177e4SLinus Torvalds } 25991da177e4SLinus Torvalds 26001da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 26011da177e4SLinus Torvalds { 26028687b63aSAl Viro uint32_t bmlen; 26038687b63aSAl Viro __be32 *p; 26041da177e4SLinus Torvalds 2605c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2606c0eae66eSBenny Halevy if (unlikely(!p)) 2607c0eae66eSBenny Halevy goto out_overflow; 2608cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 26091da177e4SLinus Torvalds 26101da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2611c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2612c0eae66eSBenny Halevy if (unlikely(!p)) 2613c0eae66eSBenny Halevy goto out_overflow; 26141da177e4SLinus Torvalds if (bmlen > 0) { 26156f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 26161da177e4SLinus Torvalds if (bmlen > 1) 2617cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 26181da177e4SLinus Torvalds } 26191da177e4SLinus Torvalds return 0; 2620c0eae66eSBenny Halevy out_overflow: 2621c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2622c0eae66eSBenny Halevy return -EIO; 26231da177e4SLinus Torvalds } 26241da177e4SLinus Torvalds 26258687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 26261da177e4SLinus Torvalds { 26278687b63aSAl Viro __be32 *p; 26281da177e4SLinus Torvalds 2629c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2630c0eae66eSBenny Halevy if (unlikely(!p)) 2631c0eae66eSBenny Halevy goto out_overflow; 2632cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 26331da177e4SLinus Torvalds *savep = xdr->p; 26341da177e4SLinus Torvalds return 0; 2635c0eae66eSBenny Halevy out_overflow: 2636c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2637c0eae66eSBenny Halevy return -EIO; 26381da177e4SLinus Torvalds } 26391da177e4SLinus Torvalds 26401da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 26411da177e4SLinus Torvalds { 26421da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 26431da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 26441da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 26451da177e4SLinus Torvalds } else 26461da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 264744109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 26481da177e4SLinus Torvalds return 0; 26491da177e4SLinus Torvalds } 26501da177e4SLinus Torvalds 26511da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 26521da177e4SLinus Torvalds { 26538687b63aSAl Viro __be32 *p; 2654409924e4STrond Myklebust int ret = 0; 26551da177e4SLinus Torvalds 26561da177e4SLinus Torvalds *type = 0; 26571da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 26581da177e4SLinus Torvalds return -EIO; 26591da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2660c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2661c0eae66eSBenny Halevy if (unlikely(!p)) 2662c0eae66eSBenny Halevy goto out_overflow; 2663cccddf4fSBenny Halevy *type = be32_to_cpup(p); 26641da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 26653110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 26661da177e4SLinus Torvalds return -EIO; 26671da177e4SLinus Torvalds } 26681da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2669409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 26701da177e4SLinus Torvalds } 2671bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2672409924e4STrond Myklebust return ret; 2673c0eae66eSBenny Halevy out_overflow: 2674c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2675c0eae66eSBenny Halevy return -EIO; 26761da177e4SLinus Torvalds } 26771da177e4SLinus Torvalds 26781da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 26791da177e4SLinus Torvalds { 26808687b63aSAl Viro __be32 *p; 2681409924e4STrond Myklebust int ret = 0; 26821da177e4SLinus Torvalds 26831da177e4SLinus Torvalds *change = 0; 26841da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 26851da177e4SLinus Torvalds return -EIO; 26861da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2687c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2688c0eae66eSBenny Halevy if (unlikely(!p)) 2689c0eae66eSBenny Halevy goto out_overflow; 2690cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 26911da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2692409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 26931da177e4SLinus Torvalds } 26943110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 26951da177e4SLinus Torvalds (unsigned long long)*change); 2696409924e4STrond Myklebust return ret; 2697c0eae66eSBenny Halevy out_overflow: 2698c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2699c0eae66eSBenny Halevy return -EIO; 27001da177e4SLinus Torvalds } 27011da177e4SLinus Torvalds 27021da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 27031da177e4SLinus Torvalds { 27048687b63aSAl Viro __be32 *p; 2705409924e4STrond Myklebust int ret = 0; 27061da177e4SLinus Torvalds 27071da177e4SLinus Torvalds *size = 0; 27081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 27091da177e4SLinus Torvalds return -EIO; 27101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2711c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2712c0eae66eSBenny Halevy if (unlikely(!p)) 2713c0eae66eSBenny Halevy goto out_overflow; 2714cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 27151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2716409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 27171da177e4SLinus Torvalds } 27183110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2719409924e4STrond Myklebust return ret; 2720c0eae66eSBenny Halevy out_overflow: 2721c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2722c0eae66eSBenny Halevy return -EIO; 27231da177e4SLinus Torvalds } 27241da177e4SLinus Torvalds 27251da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27261da177e4SLinus Torvalds { 27278687b63aSAl Viro __be32 *p; 27281da177e4SLinus Torvalds 27291da177e4SLinus Torvalds *res = 0; 27301da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 27311da177e4SLinus Torvalds return -EIO; 27321da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2733c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2734c0eae66eSBenny Halevy if (unlikely(!p)) 2735c0eae66eSBenny Halevy goto out_overflow; 2736cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27371da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 27381da177e4SLinus Torvalds } 27393110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 27401da177e4SLinus Torvalds return 0; 2741c0eae66eSBenny Halevy out_overflow: 2742c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2743c0eae66eSBenny Halevy return -EIO; 27441da177e4SLinus Torvalds } 27451da177e4SLinus Torvalds 27461da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27471da177e4SLinus Torvalds { 27488687b63aSAl Viro __be32 *p; 27491da177e4SLinus Torvalds 27501da177e4SLinus Torvalds *res = 0; 27511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 27521da177e4SLinus Torvalds return -EIO; 27531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2754c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2755c0eae66eSBenny Halevy if (unlikely(!p)) 2756c0eae66eSBenny Halevy goto out_overflow; 2757cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 27591da177e4SLinus Torvalds } 27603110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 27611da177e4SLinus Torvalds return 0; 2762c0eae66eSBenny Halevy out_overflow: 2763c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2764c0eae66eSBenny Halevy return -EIO; 27651da177e4SLinus Torvalds } 27661da177e4SLinus Torvalds 27678b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 27681da177e4SLinus Torvalds { 27698687b63aSAl Viro __be32 *p; 2770409924e4STrond Myklebust int ret = 0; 27711da177e4SLinus Torvalds 27721da177e4SLinus Torvalds fsid->major = 0; 27731da177e4SLinus Torvalds fsid->minor = 0; 27741da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 27751da177e4SLinus Torvalds return -EIO; 27761da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2777c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2778c0eae66eSBenny Halevy if (unlikely(!p)) 2779c0eae66eSBenny Halevy goto out_overflow; 27803ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2781cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 27821da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2783409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 27841da177e4SLinus Torvalds } 27853110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 27861da177e4SLinus Torvalds (unsigned long long)fsid->major, 27871da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2788409924e4STrond Myklebust return ret; 2789c0eae66eSBenny Halevy out_overflow: 2790c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2791c0eae66eSBenny Halevy return -EIO; 27921da177e4SLinus Torvalds } 27931da177e4SLinus Torvalds 27941da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27951da177e4SLinus Torvalds { 27968687b63aSAl Viro __be32 *p; 27971da177e4SLinus Torvalds 27981da177e4SLinus Torvalds *res = 60; 27991da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 28001da177e4SLinus Torvalds return -EIO; 28011da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2802c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2803c0eae66eSBenny Halevy if (unlikely(!p)) 2804c0eae66eSBenny Halevy goto out_overflow; 2805cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28061da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 28071da177e4SLinus Torvalds } 28083110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 28091da177e4SLinus Torvalds return 0; 2810c0eae66eSBenny Halevy out_overflow: 2811c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2812c0eae66eSBenny Halevy return -EIO; 28131da177e4SLinus Torvalds } 28141da177e4SLinus Torvalds 28151da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28161da177e4SLinus Torvalds { 28178687b63aSAl Viro __be32 *p; 28181da177e4SLinus Torvalds 28191da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 28201da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 28211da177e4SLinus Torvalds return -EIO; 28221da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2823c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2824c0eae66eSBenny Halevy if (unlikely(!p)) 2825c0eae66eSBenny Halevy goto out_overflow; 2826cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 28281da177e4SLinus Torvalds } 28293110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 28301da177e4SLinus Torvalds return 0; 2831c0eae66eSBenny Halevy out_overflow: 2832c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2833c0eae66eSBenny Halevy return -EIO; 28341da177e4SLinus Torvalds } 28351da177e4SLinus Torvalds 28361da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 28371da177e4SLinus Torvalds { 28388687b63aSAl Viro __be32 *p; 2839409924e4STrond Myklebust int ret = 0; 28401da177e4SLinus Torvalds 28411da177e4SLinus Torvalds *fileid = 0; 28421da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 28431da177e4SLinus Torvalds return -EIO; 28441da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2845c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2846c0eae66eSBenny Halevy if (unlikely(!p)) 2847c0eae66eSBenny Halevy goto out_overflow; 2848cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 28491da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2850409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 28511da177e4SLinus Torvalds } 28523110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2853409924e4STrond Myklebust return ret; 2854c0eae66eSBenny Halevy out_overflow: 2855c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2856c0eae66eSBenny Halevy return -EIO; 28571da177e4SLinus Torvalds } 28581da177e4SLinus Torvalds 285999baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 286099baf625SManoj Naik { 28618687b63aSAl Viro __be32 *p; 2862409924e4STrond Myklebust int ret = 0; 286399baf625SManoj Naik 286499baf625SManoj Naik *fileid = 0; 286599baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 286699baf625SManoj Naik return -EIO; 286799baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 2868c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2869c0eae66eSBenny Halevy if (unlikely(!p)) 2870c0eae66eSBenny Halevy goto out_overflow; 2871cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 287299baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2873409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 287499baf625SManoj Naik } 28753110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2876409924e4STrond Myklebust return ret; 2877c0eae66eSBenny Halevy out_overflow: 2878c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2879c0eae66eSBenny Halevy return -EIO; 288099baf625SManoj Naik } 288199baf625SManoj Naik 28821da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28831da177e4SLinus Torvalds { 28848687b63aSAl Viro __be32 *p; 28851da177e4SLinus Torvalds int status = 0; 28861da177e4SLinus Torvalds 28871da177e4SLinus Torvalds *res = 0; 28881da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 28891da177e4SLinus Torvalds return -EIO; 28901da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 2891c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2892c0eae66eSBenny Halevy if (unlikely(!p)) 2893c0eae66eSBenny Halevy goto out_overflow; 2894cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 28951da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 28961da177e4SLinus Torvalds } 28973110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 28981da177e4SLinus Torvalds return status; 2899c0eae66eSBenny Halevy out_overflow: 2900c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2901c0eae66eSBenny Halevy return -EIO; 29021da177e4SLinus Torvalds } 29031da177e4SLinus Torvalds 29041da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29051da177e4SLinus Torvalds { 29068687b63aSAl Viro __be32 *p; 29071da177e4SLinus Torvalds int status = 0; 29081da177e4SLinus Torvalds 29091da177e4SLinus Torvalds *res = 0; 29101da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 29111da177e4SLinus Torvalds return -EIO; 29121da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 2913c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2914c0eae66eSBenny Halevy if (unlikely(!p)) 2915c0eae66eSBenny Halevy goto out_overflow; 2916cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 29171da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 29181da177e4SLinus Torvalds } 29193110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 29201da177e4SLinus Torvalds return status; 2921c0eae66eSBenny Halevy out_overflow: 2922c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2923c0eae66eSBenny Halevy return -EIO; 29241da177e4SLinus Torvalds } 29251da177e4SLinus Torvalds 29261da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29271da177e4SLinus Torvalds { 29288687b63aSAl Viro __be32 *p; 29291da177e4SLinus Torvalds int status = 0; 29301da177e4SLinus Torvalds 29311da177e4SLinus Torvalds *res = 0; 29321da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 29331da177e4SLinus Torvalds return -EIO; 29341da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 2935c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2936c0eae66eSBenny Halevy if (unlikely(!p)) 2937c0eae66eSBenny Halevy goto out_overflow; 2938cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 29391da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 29401da177e4SLinus Torvalds } 29413110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 29421da177e4SLinus Torvalds return status; 2943c0eae66eSBenny Halevy out_overflow: 2944c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2945c0eae66eSBenny Halevy return -EIO; 29461da177e4SLinus Torvalds } 29471da177e4SLinus Torvalds 29487aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 29497aaa0b3bSManoj Naik { 2950464ad6b1SChuck Lever u32 n; 29518687b63aSAl Viro __be32 *p; 29527aaa0b3bSManoj Naik int status = 0; 29537aaa0b3bSManoj Naik 2954c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2955c0eae66eSBenny Halevy if (unlikely(!p)) 2956c0eae66eSBenny Halevy goto out_overflow; 2957cccddf4fSBenny Halevy n = be32_to_cpup(p); 295833a43f28SAndy Adamson if (n == 0) 295933a43f28SAndy Adamson goto root_path; 29607aaa0b3bSManoj Naik dprintk("path "); 29617aaa0b3bSManoj Naik path->ncomponents = 0; 29627aaa0b3bSManoj Naik while (path->ncomponents < n) { 29637aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 29647aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 29657aaa0b3bSManoj Naik if (unlikely(status != 0)) 29667aaa0b3bSManoj Naik goto out_eio; 29677aaa0b3bSManoj Naik if (path->ncomponents != n) 29687aaa0b3bSManoj Naik dprintk("/"); 29697aaa0b3bSManoj Naik dprintk("%s", component->data); 29707aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 29717aaa0b3bSManoj Naik path->ncomponents++; 29727aaa0b3bSManoj Naik else { 29737aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 29747aaa0b3bSManoj Naik goto out_eio; 29757aaa0b3bSManoj Naik } 29767aaa0b3bSManoj Naik } 29777aaa0b3bSManoj Naik out: 29787aaa0b3bSManoj Naik dprintk("\n"); 29797aaa0b3bSManoj Naik return status; 298033a43f28SAndy Adamson root_path: 298133a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 298233a43f28SAndy Adamson path->ncomponents = 1; 298333a43f28SAndy Adamson path->components[0].len=0; 298433a43f28SAndy Adamson path->components[0].data=NULL; 298533a43f28SAndy Adamson dprintk("path /\n"); 298633a43f28SAndy Adamson goto out; 29877aaa0b3bSManoj Naik out_eio: 29887aaa0b3bSManoj Naik dprintk(" status %d", status); 29897aaa0b3bSManoj Naik status = -EIO; 29907aaa0b3bSManoj Naik goto out; 2991c0eae66eSBenny Halevy out_overflow: 2992c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2993c0eae66eSBenny Halevy return -EIO; 29947aaa0b3bSManoj Naik } 29957aaa0b3bSManoj Naik 29967aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2997683b57b4STrond Myklebust { 2998683b57b4STrond Myklebust int n; 29998687b63aSAl Viro __be32 *p; 3000683b57b4STrond Myklebust int status = -EIO; 3001683b57b4STrond Myklebust 3002683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3003683b57b4STrond Myklebust goto out; 3004683b57b4STrond Myklebust status = 0; 3005683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3006683b57b4STrond Myklebust goto out; 30073110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 30087aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3009683b57b4STrond Myklebust if (unlikely(status != 0)) 3010683b57b4STrond Myklebust goto out; 3011c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3012c0eae66eSBenny Halevy if (unlikely(!p)) 3013c0eae66eSBenny Halevy goto out_overflow; 3014cccddf4fSBenny Halevy n = be32_to_cpup(p); 3015683b57b4STrond Myklebust if (n <= 0) 3016683b57b4STrond Myklebust goto out_eio; 3017683b57b4STrond Myklebust res->nlocations = 0; 3018683b57b4STrond Myklebust while (res->nlocations < n) { 3019464ad6b1SChuck Lever u32 m; 30207aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3021683b57b4STrond Myklebust 3022c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3023c0eae66eSBenny Halevy if (unlikely(!p)) 3024c0eae66eSBenny Halevy goto out_overflow; 3025cccddf4fSBenny Halevy m = be32_to_cpup(p); 30267aaa0b3bSManoj Naik 30277aaa0b3bSManoj Naik loc->nservers = 0; 30283110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 30297aaa0b3bSManoj Naik while (loc->nservers < m) { 30307aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 30317aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3032683b57b4STrond Myklebust if (unlikely(status != 0)) 3033683b57b4STrond Myklebust goto out_eio; 30347aaa0b3bSManoj Naik dprintk("%s ", server->data); 30357aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 30367aaa0b3bSManoj Naik loc->nservers++; 30377aaa0b3bSManoj Naik else { 3038464ad6b1SChuck Lever unsigned int i; 3039464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3040464ad6b1SChuck Lever "returned for location %u\n", 30413110ff80SHarvey Harrison __func__, 3042464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3043464ad6b1SChuck Lever m, res->nlocations); 30447aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 30452e42c3e2STrond Myklebust unsigned int len; 30467aaa0b3bSManoj Naik char *data; 30477aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3048683b57b4STrond Myklebust if (unlikely(status != 0)) 3049683b57b4STrond Myklebust goto out_eio; 30507aaa0b3bSManoj Naik } 30517aaa0b3bSManoj Naik } 30527aaa0b3bSManoj Naik } 30537aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 30547aaa0b3bSManoj Naik if (unlikely(status != 0)) 30557aaa0b3bSManoj Naik goto out_eio; 30567aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3057683b57b4STrond Myklebust res->nlocations++; 3058683b57b4STrond Myklebust } 3059409924e4STrond Myklebust if (res->nlocations != 0) 3060409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3061683b57b4STrond Myklebust out: 30623110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3063683b57b4STrond Myklebust return status; 3064c0eae66eSBenny Halevy out_overflow: 3065c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3066683b57b4STrond Myklebust out_eio: 3067683b57b4STrond Myklebust status = -EIO; 3068683b57b4STrond Myklebust goto out; 3069683b57b4STrond Myklebust } 3070683b57b4STrond Myklebust 30711da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30721da177e4SLinus Torvalds { 30738687b63aSAl Viro __be32 *p; 30741da177e4SLinus Torvalds int status = 0; 30751da177e4SLinus Torvalds 30761da177e4SLinus Torvalds *res = 0; 30771da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 30781da177e4SLinus Torvalds return -EIO; 30791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3080c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3081c0eae66eSBenny Halevy if (unlikely(!p)) 3082c0eae66eSBenny Halevy goto out_overflow; 3083cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 30851da177e4SLinus Torvalds } 30863110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 30871da177e4SLinus Torvalds return status; 3088c0eae66eSBenny Halevy out_overflow: 3089c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3090c0eae66eSBenny Halevy return -EIO; 30911da177e4SLinus Torvalds } 30921da177e4SLinus Torvalds 30931da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 30941da177e4SLinus Torvalds { 30958687b63aSAl Viro __be32 *p; 30961da177e4SLinus Torvalds int status = 0; 30971da177e4SLinus Torvalds 30981da177e4SLinus Torvalds *maxlink = 1; 30991da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 31001da177e4SLinus Torvalds return -EIO; 31011da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3102c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3103c0eae66eSBenny Halevy if (unlikely(!p)) 3104c0eae66eSBenny Halevy goto out_overflow; 3105cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 31061da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 31071da177e4SLinus Torvalds } 31083110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 31091da177e4SLinus Torvalds return status; 3110c0eae66eSBenny Halevy out_overflow: 3111c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3112c0eae66eSBenny Halevy return -EIO; 31131da177e4SLinus Torvalds } 31141da177e4SLinus Torvalds 31151da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 31161da177e4SLinus Torvalds { 31178687b63aSAl Viro __be32 *p; 31181da177e4SLinus Torvalds int status = 0; 31191da177e4SLinus Torvalds 31201da177e4SLinus Torvalds *maxname = 1024; 31211da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 31221da177e4SLinus Torvalds return -EIO; 31231da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3124c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3125c0eae66eSBenny Halevy if (unlikely(!p)) 3126c0eae66eSBenny Halevy goto out_overflow; 3127cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 31281da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 31291da177e4SLinus Torvalds } 31303110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 31311da177e4SLinus Torvalds return status; 3132c0eae66eSBenny Halevy out_overflow: 3133c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3134c0eae66eSBenny Halevy return -EIO; 31351da177e4SLinus Torvalds } 31361da177e4SLinus Torvalds 31371da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 31381da177e4SLinus Torvalds { 31398687b63aSAl Viro __be32 *p; 31401da177e4SLinus Torvalds int status = 0; 31411da177e4SLinus Torvalds 31421da177e4SLinus Torvalds *res = 1024; 31431da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 31441da177e4SLinus Torvalds return -EIO; 31451da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 31461da177e4SLinus Torvalds uint64_t maxread; 3147c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3148c0eae66eSBenny Halevy if (unlikely(!p)) 3149c0eae66eSBenny Halevy goto out_overflow; 3150cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 31511da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 31521da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 31531da177e4SLinus Torvalds *res = (uint32_t)maxread; 31541da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 31551da177e4SLinus Torvalds } 31563110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 31571da177e4SLinus Torvalds return status; 3158c0eae66eSBenny Halevy out_overflow: 3159c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3160c0eae66eSBenny Halevy return -EIO; 31611da177e4SLinus Torvalds } 31621da177e4SLinus Torvalds 31631da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 31641da177e4SLinus Torvalds { 31658687b63aSAl Viro __be32 *p; 31661da177e4SLinus Torvalds int status = 0; 31671da177e4SLinus Torvalds 31681da177e4SLinus Torvalds *res = 1024; 31691da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 31701da177e4SLinus Torvalds return -EIO; 31711da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 31721da177e4SLinus Torvalds uint64_t maxwrite; 3173c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3174c0eae66eSBenny Halevy if (unlikely(!p)) 3175c0eae66eSBenny Halevy goto out_overflow; 3176cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 31771da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 31781da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 31791da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 31801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 31811da177e4SLinus Torvalds } 31823110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 31831da177e4SLinus Torvalds return status; 3184c0eae66eSBenny Halevy out_overflow: 3185c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3186c0eae66eSBenny Halevy return -EIO; 31871da177e4SLinus Torvalds } 31881da177e4SLinus Torvalds 3189bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 31901da177e4SLinus Torvalds { 3191bca79478STrond Myklebust uint32_t tmp; 31928687b63aSAl Viro __be32 *p; 3193409924e4STrond Myklebust int ret = 0; 31941da177e4SLinus Torvalds 31951da177e4SLinus Torvalds *mode = 0; 31961da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 31971da177e4SLinus Torvalds return -EIO; 31981da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3199c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3200c0eae66eSBenny Halevy if (unlikely(!p)) 3201c0eae66eSBenny Halevy goto out_overflow; 3202cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3203bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 32041da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3205409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 32061da177e4SLinus Torvalds } 32073110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3208409924e4STrond Myklebust return ret; 3209c0eae66eSBenny Halevy out_overflow: 3210c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3211c0eae66eSBenny Halevy return -EIO; 32121da177e4SLinus Torvalds } 32131da177e4SLinus Torvalds 32141da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 32151da177e4SLinus Torvalds { 32168687b63aSAl Viro __be32 *p; 3217409924e4STrond Myklebust int ret = 0; 32181da177e4SLinus Torvalds 32191da177e4SLinus Torvalds *nlink = 1; 32201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 32211da177e4SLinus Torvalds return -EIO; 32221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3223c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3224c0eae66eSBenny Halevy if (unlikely(!p)) 3225c0eae66eSBenny Halevy goto out_overflow; 3226cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 32271da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3228409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 32291da177e4SLinus Torvalds } 32303110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3231409924e4STrond Myklebust return ret; 3232c0eae66eSBenny Halevy out_overflow: 3233c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3234c0eae66eSBenny Halevy return -EIO; 32351da177e4SLinus Torvalds } 32361da177e4SLinus Torvalds 323780e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 323880e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *uid, int may_sleep) 32391da177e4SLinus Torvalds { 32408687b63aSAl Viro uint32_t len; 32418687b63aSAl Viro __be32 *p; 3242409924e4STrond Myklebust int ret = 0; 32431da177e4SLinus Torvalds 32441da177e4SLinus Torvalds *uid = -2; 32451da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 32461da177e4SLinus Torvalds return -EIO; 32471da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3248c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3249c0eae66eSBenny Halevy if (unlikely(!p)) 3250c0eae66eSBenny Halevy goto out_overflow; 3251cccddf4fSBenny Halevy len = be32_to_cpup(p); 3252c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3253c0eae66eSBenny Halevy if (unlikely(!p)) 3254c0eae66eSBenny Halevy goto out_overflow; 325580e52aceSTrond Myklebust if (!may_sleep) { 325680e52aceSTrond Myklebust /* do nothing */ 325780e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3258409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3259409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3260409924e4STrond Myklebust else 32611da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 32623110ff80SHarvey Harrison __func__); 32631da177e4SLinus Torvalds } else 3264fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 32653110ff80SHarvey Harrison __func__, len); 32661da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 32671da177e4SLinus Torvalds } 32683110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3269409924e4STrond Myklebust return ret; 3270c0eae66eSBenny Halevy out_overflow: 3271c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3272c0eae66eSBenny Halevy return -EIO; 32731da177e4SLinus Torvalds } 32741da177e4SLinus Torvalds 327580e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 327680e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *gid, int may_sleep) 32771da177e4SLinus Torvalds { 32788687b63aSAl Viro uint32_t len; 32798687b63aSAl Viro __be32 *p; 3280409924e4STrond Myklebust int ret = 0; 32811da177e4SLinus Torvalds 32821da177e4SLinus Torvalds *gid = -2; 32831da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 32841da177e4SLinus Torvalds return -EIO; 32851da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3286c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3287c0eae66eSBenny Halevy if (unlikely(!p)) 3288c0eae66eSBenny Halevy goto out_overflow; 3289cccddf4fSBenny Halevy len = be32_to_cpup(p); 3290c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3291c0eae66eSBenny Halevy if (unlikely(!p)) 3292c0eae66eSBenny Halevy goto out_overflow; 329380e52aceSTrond Myklebust if (!may_sleep) { 329480e52aceSTrond Myklebust /* do nothing */ 329580e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3296409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3297409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3298409924e4STrond Myklebust else 32991da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 33003110ff80SHarvey Harrison __func__); 33011da177e4SLinus Torvalds } else 3302fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 33033110ff80SHarvey Harrison __func__, len); 33041da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 33051da177e4SLinus Torvalds } 33063110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3307409924e4STrond Myklebust return ret; 3308c0eae66eSBenny Halevy out_overflow: 3309c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3310c0eae66eSBenny Halevy return -EIO; 33111da177e4SLinus Torvalds } 33121da177e4SLinus Torvalds 33131da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 33141da177e4SLinus Torvalds { 33158687b63aSAl Viro uint32_t major = 0, minor = 0; 33168687b63aSAl Viro __be32 *p; 3317409924e4STrond Myklebust int ret = 0; 33181da177e4SLinus Torvalds 33191da177e4SLinus Torvalds *rdev = MKDEV(0,0); 33201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 33211da177e4SLinus Torvalds return -EIO; 33221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 33231da177e4SLinus Torvalds dev_t tmp; 33241da177e4SLinus Torvalds 3325c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3326c0eae66eSBenny Halevy if (unlikely(!p)) 3327c0eae66eSBenny Halevy goto out_overflow; 33286f723f77SBenny Halevy major = be32_to_cpup(p++); 3329cccddf4fSBenny Halevy minor = be32_to_cpup(p); 33301da177e4SLinus Torvalds tmp = MKDEV(major, minor); 33311da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 33321da177e4SLinus Torvalds *rdev = tmp; 33331da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3334409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 33351da177e4SLinus Torvalds } 33363110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3337409924e4STrond Myklebust return ret; 3338c0eae66eSBenny Halevy out_overflow: 3339c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3340c0eae66eSBenny Halevy return -EIO; 33411da177e4SLinus Torvalds } 33421da177e4SLinus Torvalds 33431da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 33441da177e4SLinus Torvalds { 33458687b63aSAl Viro __be32 *p; 33461da177e4SLinus Torvalds int status = 0; 33471da177e4SLinus Torvalds 33481da177e4SLinus Torvalds *res = 0; 33491da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 33501da177e4SLinus Torvalds return -EIO; 33511da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3352c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3353c0eae66eSBenny Halevy if (unlikely(!p)) 3354c0eae66eSBenny Halevy goto out_overflow; 3355cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 33561da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 33571da177e4SLinus Torvalds } 33583110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 33591da177e4SLinus Torvalds return status; 3360c0eae66eSBenny Halevy out_overflow: 3361c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3362c0eae66eSBenny Halevy return -EIO; 33631da177e4SLinus Torvalds } 33641da177e4SLinus Torvalds 33651da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 33661da177e4SLinus Torvalds { 33678687b63aSAl Viro __be32 *p; 33681da177e4SLinus Torvalds int status = 0; 33691da177e4SLinus Torvalds 33701da177e4SLinus Torvalds *res = 0; 33711da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 33721da177e4SLinus Torvalds return -EIO; 33731da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3374c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3375c0eae66eSBenny Halevy if (unlikely(!p)) 3376c0eae66eSBenny Halevy goto out_overflow; 3377cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 33781da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 33791da177e4SLinus Torvalds } 33803110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 33811da177e4SLinus Torvalds return status; 3382c0eae66eSBenny Halevy out_overflow: 3383c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3384c0eae66eSBenny Halevy return -EIO; 33851da177e4SLinus Torvalds } 33861da177e4SLinus Torvalds 33871da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 33881da177e4SLinus Torvalds { 33898687b63aSAl Viro __be32 *p; 33901da177e4SLinus Torvalds int status = 0; 33911da177e4SLinus Torvalds 33921da177e4SLinus Torvalds *res = 0; 33931da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 33941da177e4SLinus Torvalds return -EIO; 33951da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3396c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3397c0eae66eSBenny Halevy if (unlikely(!p)) 3398c0eae66eSBenny Halevy goto out_overflow; 3399cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34001da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 34011da177e4SLinus Torvalds } 34023110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 34031da177e4SLinus Torvalds return status; 3404c0eae66eSBenny Halevy out_overflow: 3405c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3406c0eae66eSBenny Halevy return -EIO; 34071da177e4SLinus Torvalds } 34081da177e4SLinus Torvalds 34091da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 34101da177e4SLinus Torvalds { 34118687b63aSAl Viro __be32 *p; 3412409924e4STrond Myklebust int ret = 0; 34131da177e4SLinus Torvalds 34141da177e4SLinus Torvalds *used = 0; 34151da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 34161da177e4SLinus Torvalds return -EIO; 34171da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3418c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3419c0eae66eSBenny Halevy if (unlikely(!p)) 3420c0eae66eSBenny Halevy goto out_overflow; 3421cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 34221da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3423409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 34241da177e4SLinus Torvalds } 34253110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 34261da177e4SLinus Torvalds (unsigned long long)*used); 3427409924e4STrond Myklebust return ret; 3428c0eae66eSBenny Halevy out_overflow: 3429c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3430c0eae66eSBenny Halevy return -EIO; 34311da177e4SLinus Torvalds } 34321da177e4SLinus Torvalds 34331da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 34341da177e4SLinus Torvalds { 34358687b63aSAl Viro __be32 *p; 34361da177e4SLinus Torvalds uint64_t sec; 34371da177e4SLinus Torvalds uint32_t nsec; 34381da177e4SLinus Torvalds 3439c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3440c0eae66eSBenny Halevy if (unlikely(!p)) 3441c0eae66eSBenny Halevy goto out_overflow; 34423ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3443cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 34441da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 34451da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 34461da177e4SLinus Torvalds return 0; 3447c0eae66eSBenny Halevy out_overflow: 3448c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3449c0eae66eSBenny Halevy return -EIO; 34501da177e4SLinus Torvalds } 34511da177e4SLinus Torvalds 34521da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 34531da177e4SLinus Torvalds { 34541da177e4SLinus Torvalds int status = 0; 34551da177e4SLinus Torvalds 34561da177e4SLinus Torvalds time->tv_sec = 0; 34571da177e4SLinus Torvalds time->tv_nsec = 0; 34581da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 34591da177e4SLinus Torvalds return -EIO; 34601da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 34611da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3462409924e4STrond Myklebust if (status == 0) 3463409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 34641da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 34651da177e4SLinus Torvalds } 34663110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 34671da177e4SLinus Torvalds return status; 34681da177e4SLinus Torvalds } 34691da177e4SLinus Torvalds 34701da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 34711da177e4SLinus Torvalds { 34721da177e4SLinus Torvalds int status = 0; 34731da177e4SLinus Torvalds 34741da177e4SLinus Torvalds time->tv_sec = 0; 34751da177e4SLinus Torvalds time->tv_nsec = 0; 34761da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 34771da177e4SLinus Torvalds return -EIO; 34781da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 34791da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3480409924e4STrond Myklebust if (status == 0) 3481409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 34821da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 34831da177e4SLinus Torvalds } 34843110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 34851da177e4SLinus Torvalds return status; 34861da177e4SLinus Torvalds } 34871da177e4SLinus Torvalds 34881da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 34891da177e4SLinus Torvalds { 34901da177e4SLinus Torvalds int status = 0; 34911da177e4SLinus Torvalds 34921da177e4SLinus Torvalds time->tv_sec = 0; 34931da177e4SLinus Torvalds time->tv_nsec = 0; 34941da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 34951da177e4SLinus Torvalds return -EIO; 34961da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 34971da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3498409924e4STrond Myklebust if (status == 0) 3499409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 35001da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 35011da177e4SLinus Torvalds } 35023110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 35031da177e4SLinus Torvalds return status; 35041da177e4SLinus Torvalds } 35051da177e4SLinus Torvalds 35068687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 35071da177e4SLinus Torvalds { 35081da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 35091da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 35101da177e4SLinus Torvalds 35111da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3512fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3513fe82a183SChuck Lever "%u %c %u\n", 35143110ff80SHarvey Harrison __func__, 35151da177e4SLinus Torvalds attrwords << 2, 35161da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 35171da177e4SLinus Torvalds nwords << 2); 35181da177e4SLinus Torvalds return -EIO; 35191da177e4SLinus Torvalds } 35201da177e4SLinus Torvalds return 0; 35211da177e4SLinus Torvalds } 35221da177e4SLinus Torvalds 35231da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35241da177e4SLinus Torvalds { 35258687b63aSAl Viro __be32 *p; 35261da177e4SLinus Torvalds 3527c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3528c0eae66eSBenny Halevy if (unlikely(!p)) 3529c0eae66eSBenny Halevy goto out_overflow; 35306f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 35313ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3532cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 35331da177e4SLinus Torvalds return 0; 3534c0eae66eSBenny Halevy out_overflow: 3535c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3536c0eae66eSBenny Halevy return -EIO; 35371da177e4SLinus Torvalds } 35381da177e4SLinus Torvalds 35391da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 35401da177e4SLinus Torvalds { 35418687b63aSAl Viro __be32 *p; 35421da177e4SLinus Torvalds uint32_t supp, acc; 35431da177e4SLinus Torvalds int status; 35441da177e4SLinus Torvalds 35451da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 35461da177e4SLinus Torvalds if (status) 35471da177e4SLinus Torvalds return status; 3548c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3549c0eae66eSBenny Halevy if (unlikely(!p)) 3550c0eae66eSBenny Halevy goto out_overflow; 35516f723f77SBenny Halevy supp = be32_to_cpup(p++); 3552cccddf4fSBenny Halevy acc = be32_to_cpup(p); 35531da177e4SLinus Torvalds access->supported = supp; 35541da177e4SLinus Torvalds access->access = acc; 35551da177e4SLinus Torvalds return 0; 3556c0eae66eSBenny Halevy out_overflow: 3557c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3558c0eae66eSBenny Halevy return -EIO; 35591da177e4SLinus Torvalds } 35601da177e4SLinus Torvalds 356107d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 35621da177e4SLinus Torvalds { 35638687b63aSAl Viro __be32 *p; 356407d30434SBenny Halevy 356507d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 356607d30434SBenny Halevy if (likely(p)) { 356707d30434SBenny Halevy memcpy(buf, p, len); 356807d30434SBenny Halevy return 0; 356907d30434SBenny Halevy } 357007d30434SBenny Halevy print_overflow_msg(__func__, xdr); 357107d30434SBenny Halevy return -EIO; 357207d30434SBenny Halevy } 357307d30434SBenny Halevy 357407d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 357507d30434SBenny Halevy { 357607d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 35771da177e4SLinus Torvalds } 35781da177e4SLinus Torvalds 35791da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 35801da177e4SLinus Torvalds { 35811da177e4SLinus Torvalds int status; 35821da177e4SLinus Torvalds 35831da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3584c1d51931STrond Myklebust if (status != -EIO) 3585c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 358607d30434SBenny Halevy if (!status) 358707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 35881da177e4SLinus Torvalds return status; 35891da177e4SLinus Torvalds } 35901da177e4SLinus Torvalds 3591db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3592db942bbdSBenny Halevy { 3593db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 35941da177e4SLinus Torvalds } 35951da177e4SLinus Torvalds 35961da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 35971da177e4SLinus Torvalds { 35981da177e4SLinus Torvalds int status; 35991da177e4SLinus Torvalds 36001da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3601db942bbdSBenny Halevy if (!status) 3602db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 36031da177e4SLinus Torvalds return status; 36041da177e4SLinus Torvalds } 36051da177e4SLinus Torvalds 36061da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36071da177e4SLinus Torvalds { 36088687b63aSAl Viro __be32 *p; 36091da177e4SLinus Torvalds uint32_t bmlen; 36101da177e4SLinus Torvalds int status; 36111da177e4SLinus Torvalds 36121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 36131da177e4SLinus Torvalds if (status) 36141da177e4SLinus Torvalds return status; 36151da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 36161da177e4SLinus Torvalds return status; 3617c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3618c0eae66eSBenny Halevy if (unlikely(!p)) 3619c0eae66eSBenny Halevy goto out_overflow; 3620cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3621c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3622c0eae66eSBenny Halevy if (likely(p)) 36231da177e4SLinus Torvalds return 0; 3624c0eae66eSBenny Halevy out_overflow: 3625c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3626c0eae66eSBenny Halevy return -EIO; 36271da177e4SLinus Torvalds } 36281da177e4SLinus Torvalds 36291da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 36301da177e4SLinus Torvalds { 36318687b63aSAl Viro __be32 *savep; 36326c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 36331da177e4SLinus Torvalds int status; 36341da177e4SLinus Torvalds 36351da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 36361da177e4SLinus Torvalds goto xdr_error; 36371da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 36381da177e4SLinus Torvalds goto xdr_error; 36391da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 36401da177e4SLinus Torvalds goto xdr_error; 36411da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 36421da177e4SLinus Torvalds goto xdr_error; 36431da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 36441da177e4SLinus Torvalds goto xdr_error; 36451da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 36461da177e4SLinus Torvalds goto xdr_error; 36471da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 36481da177e4SLinus Torvalds goto xdr_error; 36491da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36501da177e4SLinus Torvalds xdr_error: 36513110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 36521da177e4SLinus Torvalds return status; 36531da177e4SLinus Torvalds } 36541da177e4SLinus Torvalds 36551da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 36561da177e4SLinus Torvalds { 36578687b63aSAl Viro __be32 *savep; 36586c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 36591da177e4SLinus Torvalds int status; 36601da177e4SLinus Torvalds 36611da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 36621da177e4SLinus Torvalds goto xdr_error; 36631da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 36641da177e4SLinus Torvalds goto xdr_error; 36651da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 36661da177e4SLinus Torvalds goto xdr_error; 36671da177e4SLinus Torvalds 36681da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 36691da177e4SLinus Torvalds goto xdr_error; 36701da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 36711da177e4SLinus Torvalds goto xdr_error; 36721da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 36731da177e4SLinus Torvalds goto xdr_error; 36741da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 36751da177e4SLinus Torvalds goto xdr_error; 36761da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 36771da177e4SLinus Torvalds goto xdr_error; 36781da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 36791da177e4SLinus Torvalds goto xdr_error; 36801da177e4SLinus Torvalds 36811da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36821da177e4SLinus Torvalds xdr_error: 36833110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 36841da177e4SLinus Torvalds return status; 36851da177e4SLinus Torvalds } 36861da177e4SLinus Torvalds 36871da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 36881da177e4SLinus Torvalds { 36898687b63aSAl Viro __be32 *savep; 36906c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 36911da177e4SLinus Torvalds int status; 36921da177e4SLinus Torvalds 36931da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 36941da177e4SLinus Torvalds goto xdr_error; 36951da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 36961da177e4SLinus Torvalds goto xdr_error; 36971da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 36981da177e4SLinus Torvalds goto xdr_error; 36991da177e4SLinus Torvalds 37001da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 37011da177e4SLinus Torvalds goto xdr_error; 37021da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 37031da177e4SLinus Torvalds goto xdr_error; 37041da177e4SLinus Torvalds 37051da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 37061da177e4SLinus Torvalds xdr_error: 37073110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 37081da177e4SLinus Torvalds return status; 37091da177e4SLinus Torvalds } 37101da177e4SLinus Torvalds 371180e52aceSTrond Myklebust static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 371280e52aceSTrond Myklebust const struct nfs_server *server, int may_sleep) 37131da177e4SLinus Torvalds { 37148687b63aSAl Viro __be32 *savep; 37151da177e4SLinus Torvalds uint32_t attrlen, 37161da177e4SLinus Torvalds bitmap[2] = {0}, 37171da177e4SLinus Torvalds type; 3718bca79478STrond Myklebust int status; 3719bca79478STrond Myklebust umode_t fmode = 0; 372099baf625SManoj Naik uint64_t fileid; 37211da177e4SLinus Torvalds 3722f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3723f26c7a78STrond Myklebust if (status < 0) 37241da177e4SLinus Torvalds goto xdr_error; 37251da177e4SLinus Torvalds 3726f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3727f26c7a78STrond Myklebust if (status < 0) 3728f26c7a78STrond Myklebust goto xdr_error; 3729f26c7a78STrond Myklebust 3730f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3731f26c7a78STrond Myklebust if (status < 0) 37321da177e4SLinus Torvalds goto xdr_error; 37331da177e4SLinus Torvalds 37341da177e4SLinus Torvalds 3735f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3736f26c7a78STrond Myklebust if (status < 0) 37371da177e4SLinus Torvalds goto xdr_error; 3738409924e4STrond Myklebust fattr->mode = 0; 3739409924e4STrond Myklebust if (status != 0) { 3740409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3741409924e4STrond Myklebust fattr->valid |= status; 3742409924e4STrond Myklebust } 37431da177e4SLinus Torvalds 3744f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3745f26c7a78STrond Myklebust if (status < 0) 37461da177e4SLinus Torvalds goto xdr_error; 3747409924e4STrond Myklebust fattr->valid |= status; 3748f26c7a78STrond Myklebust 3749f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3750f26c7a78STrond Myklebust if (status < 0) 37511da177e4SLinus Torvalds goto xdr_error; 3752409924e4STrond Myklebust fattr->valid |= status; 3753f26c7a78STrond Myklebust 3754f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3755f26c7a78STrond Myklebust if (status < 0) 37561da177e4SLinus Torvalds goto xdr_error; 3757409924e4STrond Myklebust fattr->valid |= status; 3758f26c7a78STrond Myklebust 3759f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3760f26c7a78STrond Myklebust if (status < 0) 37611da177e4SLinus Torvalds goto xdr_error; 3762409924e4STrond Myklebust fattr->valid |= status; 3763f26c7a78STrond Myklebust 3764f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 37657aaa0b3bSManoj Naik struct nfs4_fs_locations, 3766f26c7a78STrond Myklebust fattr)); 3767f26c7a78STrond Myklebust if (status < 0) 3768683b57b4STrond Myklebust goto xdr_error; 3769409924e4STrond Myklebust fattr->valid |= status; 3770f26c7a78STrond Myklebust 3771f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3772f26c7a78STrond Myklebust if (status < 0) 37731da177e4SLinus Torvalds goto xdr_error; 3774409924e4STrond Myklebust if (status != 0) { 37751da177e4SLinus Torvalds fattr->mode |= fmode; 3776409924e4STrond Myklebust fattr->valid |= status; 3777409924e4STrond Myklebust } 3778f26c7a78STrond Myklebust 3779f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3780f26c7a78STrond Myklebust if (status < 0) 37811da177e4SLinus Torvalds goto xdr_error; 3782409924e4STrond Myklebust fattr->valid |= status; 3783f26c7a78STrond Myklebust 378480e52aceSTrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, 378580e52aceSTrond Myklebust &fattr->uid, may_sleep); 3786f26c7a78STrond Myklebust if (status < 0) 37871da177e4SLinus Torvalds goto xdr_error; 3788409924e4STrond Myklebust fattr->valid |= status; 3789f26c7a78STrond Myklebust 379080e52aceSTrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, 379180e52aceSTrond Myklebust &fattr->gid, may_sleep); 3792f26c7a78STrond Myklebust if (status < 0) 37931da177e4SLinus Torvalds goto xdr_error; 3794409924e4STrond Myklebust fattr->valid |= status; 3795f26c7a78STrond Myklebust 3796f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3797f26c7a78STrond Myklebust if (status < 0) 37981da177e4SLinus Torvalds goto xdr_error; 3799409924e4STrond Myklebust fattr->valid |= status; 3800f26c7a78STrond Myklebust 3801f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3802f26c7a78STrond Myklebust if (status < 0) 38031da177e4SLinus Torvalds goto xdr_error; 3804409924e4STrond Myklebust fattr->valid |= status; 3805f26c7a78STrond Myklebust 3806f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3807f26c7a78STrond Myklebust if (status < 0) 38081da177e4SLinus Torvalds goto xdr_error; 3809409924e4STrond Myklebust fattr->valid |= status; 3810f26c7a78STrond Myklebust 3811f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3812f26c7a78STrond Myklebust if (status < 0) 38131da177e4SLinus Torvalds goto xdr_error; 3814409924e4STrond Myklebust fattr->valid |= status; 3815f26c7a78STrond Myklebust 3816f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3817f26c7a78STrond Myklebust if (status < 0) 38181da177e4SLinus Torvalds goto xdr_error; 3819409924e4STrond Myklebust fattr->valid |= status; 3820f26c7a78STrond Myklebust 3821f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3822f26c7a78STrond Myklebust if (status < 0) 382399baf625SManoj Naik goto xdr_error; 3824409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 382599baf625SManoj Naik fattr->fileid = fileid; 3826409924e4STrond Myklebust fattr->valid |= status; 3827409924e4STrond Myklebust } 3828f26c7a78STrond Myklebust 3829f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 38301da177e4SLinus Torvalds xdr_error: 38313110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 38321da177e4SLinus Torvalds return status; 38331da177e4SLinus Torvalds } 38341da177e4SLinus Torvalds 38351da177e4SLinus Torvalds 38361da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 38371da177e4SLinus Torvalds { 38388687b63aSAl Viro __be32 *savep; 38391da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 38401da177e4SLinus Torvalds int status; 38411da177e4SLinus Torvalds 38421da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38431da177e4SLinus Torvalds goto xdr_error; 38441da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38451da177e4SLinus Torvalds goto xdr_error; 38461da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38471da177e4SLinus Torvalds goto xdr_error; 38481da177e4SLinus Torvalds 38491da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 38501da177e4SLinus Torvalds 38511da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 38521da177e4SLinus Torvalds goto xdr_error; 38531da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 38541da177e4SLinus Torvalds goto xdr_error; 38551da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 38561da177e4SLinus Torvalds goto xdr_error; 38571da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 38581da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 38591da177e4SLinus Torvalds goto xdr_error; 38601da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 38611da177e4SLinus Torvalds 38621da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38631da177e4SLinus Torvalds xdr_error: 38643110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38651da177e4SLinus Torvalds return status; 38661da177e4SLinus Torvalds } 38671da177e4SLinus Torvalds 38681da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 38691da177e4SLinus Torvalds { 38708687b63aSAl Viro __be32 *p; 38711da177e4SLinus Torvalds uint32_t len; 38721da177e4SLinus Torvalds int status; 38731da177e4SLinus Torvalds 38749936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 38759936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 38769936781dSTrond Myklebust 38771da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 38781da177e4SLinus Torvalds if (status) 38791da177e4SLinus Torvalds return status; 38801da177e4SLinus Torvalds 3881c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3882c0eae66eSBenny Halevy if (unlikely(!p)) 3883c0eae66eSBenny Halevy goto out_overflow; 3884cccddf4fSBenny Halevy len = be32_to_cpup(p); 38851da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 38861da177e4SLinus Torvalds return -EIO; 38871da177e4SLinus Torvalds fh->size = len; 3888c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3889c0eae66eSBenny Halevy if (unlikely(!p)) 3890c0eae66eSBenny Halevy goto out_overflow; 389199398d06SBenny Halevy memcpy(fh->data, p, len); 38921da177e4SLinus Torvalds return 0; 3893c0eae66eSBenny Halevy out_overflow: 3894c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3895c0eae66eSBenny Halevy return -EIO; 38961da177e4SLinus Torvalds } 38971da177e4SLinus Torvalds 38981da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 38991da177e4SLinus Torvalds { 39001da177e4SLinus Torvalds int status; 39011da177e4SLinus Torvalds 39021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 39031da177e4SLinus Torvalds if (status) 39041da177e4SLinus Torvalds return status; 39051da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 39061da177e4SLinus Torvalds } 39071da177e4SLinus Torvalds 39081da177e4SLinus Torvalds /* 39091da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 39101da177e4SLinus Torvalds */ 3911911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 39121da177e4SLinus Torvalds { 3913911d1aafSTrond Myklebust uint64_t offset, length, clientid; 39148687b63aSAl Viro __be32 *p; 3915911d1aafSTrond Myklebust uint32_t namelen, type; 39161da177e4SLinus Torvalds 3917c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 32); 3918c0eae66eSBenny Halevy if (unlikely(!p)) 3919c0eae66eSBenny Halevy goto out_overflow; 39203ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &offset); 39213ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 39226f723f77SBenny Halevy type = be32_to_cpup(p++); 3923911d1aafSTrond Myklebust if (fl != NULL) { 3924911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3925911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3926911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3927911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3928911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3929911d1aafSTrond Myklebust if (type & 1) 3930911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3931911d1aafSTrond Myklebust fl->fl_pid = 0; 3932911d1aafSTrond Myklebust } 39333ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &clientid); 3934cccddf4fSBenny Halevy namelen = be32_to_cpup(p); 3935c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, namelen); 3936c0eae66eSBenny Halevy if (likely(p)) 39371da177e4SLinus Torvalds return -NFS4ERR_DENIED; 3938c0eae66eSBenny Halevy out_overflow: 3939c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3940c0eae66eSBenny Halevy return -EIO; 39411da177e4SLinus Torvalds } 39421da177e4SLinus Torvalds 3943911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 39441da177e4SLinus Torvalds { 39451da177e4SLinus Torvalds int status; 39461da177e4SLinus Torvalds 39471da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3948c1d51931STrond Myklebust if (status == -EIO) 3949c1d51931STrond Myklebust goto out; 39501da177e4SLinus Torvalds if (status == 0) { 395107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 395207d30434SBenny Halevy if (unlikely(status)) 395307d30434SBenny Halevy goto out; 39541da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3955c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3956c1d51931STrond Myklebust if (res->open_seqid != NULL) 3957c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3958c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3959c1d51931STrond Myklebust out: 39601da177e4SLinus Torvalds return status; 39611da177e4SLinus Torvalds } 39621da177e4SLinus Torvalds 3963911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 39641da177e4SLinus Torvalds { 39651da177e4SLinus Torvalds int status; 39661da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 39671da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3968911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 39691da177e4SLinus Torvalds return status; 39701da177e4SLinus Torvalds } 39711da177e4SLinus Torvalds 3972911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 39731da177e4SLinus Torvalds { 39741da177e4SLinus Torvalds int status; 39751da177e4SLinus Torvalds 39761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3977c1d51931STrond Myklebust if (status != -EIO) 3978c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 397907d30434SBenny Halevy if (status == 0) 398007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 39811da177e4SLinus Torvalds return status; 39821da177e4SLinus Torvalds } 39831da177e4SLinus Torvalds 39841da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 39851da177e4SLinus Torvalds { 39861da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 39871da177e4SLinus Torvalds } 39881da177e4SLinus Torvalds 39891da177e4SLinus Torvalds /* This is too sick! */ 39901da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 39911da177e4SLinus Torvalds { 39928687b63aSAl Viro __be32 *p; 39931da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 39941da177e4SLinus Torvalds 3995c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3996c0eae66eSBenny Halevy if (unlikely(!p)) 3997c0eae66eSBenny Halevy goto out_overflow; 39986f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 39991da177e4SLinus Torvalds switch (limit_type) { 40001da177e4SLinus Torvalds case 1: 4001cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 40021da177e4SLinus Torvalds break; 40031da177e4SLinus Torvalds case 2: 40046f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4005cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 40061da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 40071da177e4SLinus Torvalds } 40081da177e4SLinus Torvalds return 0; 4009c0eae66eSBenny Halevy out_overflow: 4010c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4011c0eae66eSBenny Halevy return -EIO; 40121da177e4SLinus Torvalds } 40131da177e4SLinus Torvalds 40141da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 40151da177e4SLinus Torvalds { 40168687b63aSAl Viro __be32 *p; 40171da177e4SLinus Torvalds uint32_t delegation_type; 401807d30434SBenny Halevy int status; 40191da177e4SLinus Torvalds 4020c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4021c0eae66eSBenny Halevy if (unlikely(!p)) 4022c0eae66eSBenny Halevy goto out_overflow; 4023cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 40241da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 40251da177e4SLinus Torvalds res->delegation_type = 0; 40261da177e4SLinus Torvalds return 0; 40271da177e4SLinus Torvalds } 402807d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 402907d30434SBenny Halevy if (unlikely(status)) 403007d30434SBenny Halevy return status; 4031c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4032c0eae66eSBenny Halevy if (unlikely(!p)) 4033c0eae66eSBenny Halevy goto out_overflow; 4034cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 403505d564feSAndy Adamson 40361da177e4SLinus Torvalds switch (delegation_type) { 40371da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 40381da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 40391da177e4SLinus Torvalds break; 40401da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 40411da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 40421da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 40431da177e4SLinus Torvalds return -EIO; 40441da177e4SLinus Torvalds } 40457539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4046c0eae66eSBenny Halevy out_overflow: 4047c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4048c0eae66eSBenny Halevy return -EIO; 40491da177e4SLinus Torvalds } 40501da177e4SLinus Torvalds 40511da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 40521da177e4SLinus Torvalds { 40538687b63aSAl Viro __be32 *p; 4054aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 40551da177e4SLinus Torvalds int status; 40561da177e4SLinus Torvalds 40571da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4058c1d51931STrond Myklebust if (status != -EIO) 4059c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 406007d30434SBenny Halevy if (!status) 406107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 406207d30434SBenny Halevy if (unlikely(status)) 40631da177e4SLinus Torvalds return status; 40641da177e4SLinus Torvalds 40651da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 40661da177e4SLinus Torvalds 4067c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4068c0eae66eSBenny Halevy if (unlikely(!p)) 4069c0eae66eSBenny Halevy goto out_overflow; 40706f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4071cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 40721da177e4SLinus Torvalds if (bmlen > 10) 40731da177e4SLinus Torvalds goto xdr_error; 40741da177e4SLinus Torvalds 4075c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4076c0eae66eSBenny Halevy if (unlikely(!p)) 4077c0eae66eSBenny Halevy goto out_overflow; 4078aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4079aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 40806f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4081aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4082aa53ed54SJeff Layton res->attrset[i] = 0; 4083aa53ed54SJeff Layton 40841da177e4SLinus Torvalds return decode_delegation(xdr, res); 40851da177e4SLinus Torvalds xdr_error: 40863110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 40871da177e4SLinus Torvalds return -EIO; 4088c0eae66eSBenny Halevy out_overflow: 4089c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4090c0eae66eSBenny Halevy return -EIO; 40911da177e4SLinus Torvalds } 40921da177e4SLinus Torvalds 40931da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 40941da177e4SLinus Torvalds { 40951da177e4SLinus Torvalds int status; 40961da177e4SLinus Torvalds 40971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4098c1d51931STrond Myklebust if (status != -EIO) 4099c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 410007d30434SBenny Halevy if (!status) 410107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41021da177e4SLinus Torvalds return status; 41031da177e4SLinus Torvalds } 41041da177e4SLinus Torvalds 41051da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 41061da177e4SLinus Torvalds { 41071da177e4SLinus Torvalds int status; 41081da177e4SLinus Torvalds 41091da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4110c1d51931STrond Myklebust if (status != -EIO) 4111c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 411207d30434SBenny Halevy if (!status) 411307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41141da177e4SLinus Torvalds return status; 41151da177e4SLinus Torvalds } 41161da177e4SLinus Torvalds 41171da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 41181da177e4SLinus Torvalds { 41191da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 41201da177e4SLinus Torvalds } 41211da177e4SLinus Torvalds 41221da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 41231da177e4SLinus Torvalds { 41241da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 41251da177e4SLinus Torvalds } 41261da177e4SLinus Torvalds 41271da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 41281da177e4SLinus Torvalds { 41291da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 41308687b63aSAl Viro __be32 *p; 41311da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 41321da177e4SLinus Torvalds int status; 41331da177e4SLinus Torvalds 41341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 41351da177e4SLinus Torvalds if (status) 41361da177e4SLinus Torvalds return status; 4137c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4138c0eae66eSBenny Halevy if (unlikely(!p)) 4139c0eae66eSBenny Halevy goto out_overflow; 41406f723f77SBenny Halevy eof = be32_to_cpup(p++); 4141cccddf4fSBenny Halevy count = be32_to_cpup(p); 41421da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 41431da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 41441da177e4SLinus Torvalds if (count > recvd) { 4145fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 41461da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 41471da177e4SLinus Torvalds count = recvd; 41481da177e4SLinus Torvalds eof = 0; 41491da177e4SLinus Torvalds } 41501da177e4SLinus Torvalds xdr_read_pages(xdr, count); 41511da177e4SLinus Torvalds res->eof = eof; 41521da177e4SLinus Torvalds res->count = count; 41531da177e4SLinus Torvalds return 0; 4154c0eae66eSBenny Halevy out_overflow: 4155c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4156c0eae66eSBenny Halevy return -EIO; 41571da177e4SLinus Torvalds } 41581da177e4SLinus Torvalds 41591da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 41601da177e4SLinus Torvalds { 41611da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 41621da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 41631da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4164bcecff77SChuck Lever size_t hdrlen; 4165bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 41668687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 41677bda2cdfSJeff Layton unsigned int nr = 0; 4168bcecff77SChuck Lever int status; 41691da177e4SLinus Torvalds 41701da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4171db942bbdSBenny Halevy if (!status) 4172db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4173db942bbdSBenny Halevy if (unlikely(status)) 41741da177e4SLinus Torvalds return status; 417544109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 417644109241SFred Isaman __func__, 4177eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4178eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4179eadf4598STrond Myklebust 41801da177e4SLinus Torvalds 4181db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 41821da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 41831da177e4SLinus Torvalds if (pglen > recvd) 41841da177e4SLinus Torvalds pglen = recvd; 41851da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 41861da177e4SLinus Torvalds 41871da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 41888687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 4189e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 41901da177e4SLinus Torvalds entry = p; 41917bda2cdfSJeff Layton 41927bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 41937bda2cdfSJeff Layton if ((entry + 1) > end) 41947bda2cdfSJeff Layton goto short_pkt; 41957bda2cdfSJeff Layton 41967bda2cdfSJeff Layton for (; *p++; nr++) { 4197bcecff77SChuck Lever u32 len, attrlen, xlen; 4198e8896495SDavid Howells if (end - p < 3) 41991da177e4SLinus Torvalds goto short_pkt; 4200eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 42011da177e4SLinus Torvalds p += 2; /* cookie */ 42021da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 42031da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 4204fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 4205fe82a183SChuck Lever len); 42061da177e4SLinus Torvalds goto err_unmap; 42071da177e4SLinus Torvalds } 4208e8896495SDavid Howells xlen = XDR_QUADLEN(len); 4209e8896495SDavid Howells if (end - p < xlen + 1) 4210e8896495SDavid Howells goto short_pkt; 4211eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 4212e8896495SDavid Howells p += xlen; 42131da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 4214e8896495SDavid Howells if (end - p < len + 1) 4215e8896495SDavid Howells goto short_pkt; 42161da177e4SLinus Torvalds p += len; 42171da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 4218e8896495SDavid Howells if (end - p < attrlen + 2) 42191da177e4SLinus Torvalds goto short_pkt; 4220e8896495SDavid Howells p += attrlen; /* attributes */ 42211da177e4SLinus Torvalds entry = p; 42221da177e4SLinus Torvalds } 42237bda2cdfSJeff Layton /* 42247bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 42257bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 42267bda2cdfSJeff Layton * those, just set the EOF marker. 42277bda2cdfSJeff Layton */ 42287bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 42297bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 42307bda2cdfSJeff Layton entry[1] = 1; 42317bda2cdfSJeff Layton } 42321da177e4SLinus Torvalds out: 42331da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 42341da177e4SLinus Torvalds return 0; 42351da177e4SLinus Torvalds short_pkt: 42367bda2cdfSJeff Layton /* 42377bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 42387bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 42397bda2cdfSJeff Layton * response and return what we have so far. If there are no 42407bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 42417bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 42427bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 42437bda2cdfSJeff Layton * readdir starting at the last cookie. 42447bda2cdfSJeff Layton */ 42453110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 42461da177e4SLinus Torvalds entry[0] = entry[1] = 0; 42477bda2cdfSJeff Layton if (nr) 42481da177e4SLinus Torvalds goto out; 42491da177e4SLinus Torvalds err_unmap: 42501da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 42511da177e4SLinus Torvalds return -errno_NFSERR_IO; 42521da177e4SLinus Torvalds } 42531da177e4SLinus Torvalds 42541da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 42551da177e4SLinus Torvalds { 42561da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 42571da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4258bcecff77SChuck Lever size_t hdrlen; 4259bcecff77SChuck Lever u32 len, recvd; 42608687b63aSAl Viro __be32 *p; 42611da177e4SLinus Torvalds char *kaddr; 42621da177e4SLinus Torvalds int status; 42631da177e4SLinus Torvalds 42641da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 42651da177e4SLinus Torvalds if (status) 42661da177e4SLinus Torvalds return status; 42671da177e4SLinus Torvalds 42681da177e4SLinus Torvalds /* Convert length of symlink */ 4269c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4270c0eae66eSBenny Halevy if (unlikely(!p)) 4271c0eae66eSBenny Halevy goto out_overflow; 4272cccddf4fSBenny Halevy len = be32_to_cpup(p); 42731da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4274fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 42751da177e4SLinus Torvalds return -ENAMETOOLONG; 42761da177e4SLinus Torvalds } 42771da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 42781da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 42791da177e4SLinus Torvalds if (recvd < len) { 4280fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 42811da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 42821da177e4SLinus Torvalds return -EIO; 42831da177e4SLinus Torvalds } 42841da177e4SLinus Torvalds xdr_read_pages(xdr, len); 42851da177e4SLinus Torvalds /* 42861da177e4SLinus Torvalds * The XDR encode routine has set things up so that 42871da177e4SLinus Torvalds * the link text will be copied directly into the 42881da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 42891da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 42901da177e4SLinus Torvalds * null-termination). 42911da177e4SLinus Torvalds */ 42921da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 42931da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 42941da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 42951da177e4SLinus Torvalds return 0; 4296c0eae66eSBenny Halevy out_overflow: 4297c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4298c0eae66eSBenny Halevy return -EIO; 42991da177e4SLinus Torvalds } 43001da177e4SLinus Torvalds 43011da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43021da177e4SLinus Torvalds { 43031da177e4SLinus Torvalds int status; 43041da177e4SLinus Torvalds 43051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 43061da177e4SLinus Torvalds if (status) 43071da177e4SLinus Torvalds goto out; 43081da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 43091da177e4SLinus Torvalds out: 43101da177e4SLinus Torvalds return status; 43111da177e4SLinus Torvalds } 43121da177e4SLinus Torvalds 43131da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 43141da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 43151da177e4SLinus Torvalds { 43161da177e4SLinus Torvalds int status; 43171da177e4SLinus Torvalds 43181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 43191da177e4SLinus Torvalds if (status) 43201da177e4SLinus Torvalds goto out; 43211da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 43221da177e4SLinus Torvalds goto out; 43231da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 43241da177e4SLinus Torvalds out: 43251da177e4SLinus Torvalds return status; 43261da177e4SLinus Torvalds } 43271da177e4SLinus Torvalds 43281da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 43291da177e4SLinus Torvalds { 43301da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 43311da177e4SLinus Torvalds } 43321da177e4SLinus Torvalds 433356ae19f3STrond Myklebust static int 433456ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 433556ae19f3STrond Myklebust { 433656ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 433756ae19f3STrond Myklebust } 433856ae19f3STrond Myklebust 4339029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4340029d105eSJ. Bruce Fields size_t *acl_len) 4341029d105eSJ. Bruce Fields { 43428687b63aSAl Viro __be32 *savep; 4343029d105eSJ. Bruce Fields uint32_t attrlen, 4344029d105eSJ. Bruce Fields bitmap[2] = {0}; 4345029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4346029d105eSJ. Bruce Fields int status; 4347029d105eSJ. Bruce Fields 4348029d105eSJ. Bruce Fields *acl_len = 0; 4349029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4350029d105eSJ. Bruce Fields goto out; 4351029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4352029d105eSJ. Bruce Fields goto out; 4353029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4354029d105eSJ. Bruce Fields goto out; 4355029d105eSJ. Bruce Fields 4356029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4357029d105eSJ. Bruce Fields return -EIO; 4358029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4359bcecff77SChuck Lever size_t hdrlen; 4360bcecff77SChuck Lever u32 recvd; 4361029d105eSJ. Bruce Fields 4362029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4363029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4364029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4365029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4366029d105eSJ. Bruce Fields if (attrlen > recvd) { 4367fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4368029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4369029d105eSJ. Bruce Fields attrlen, recvd); 4370029d105eSJ. Bruce Fields return -EINVAL; 4371029d105eSJ. Bruce Fields } 4372029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4373029d105eSJ. Bruce Fields *acl_len = attrlen; 43748c233cf9SJ. Bruce Fields } else 43758c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4376029d105eSJ. Bruce Fields 4377029d105eSJ. Bruce Fields out: 4378029d105eSJ. Bruce Fields return status; 4379029d105eSJ. Bruce Fields } 4380029d105eSJ. Bruce Fields 43811da177e4SLinus Torvalds static int 43821da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 43831da177e4SLinus Torvalds { 43841da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 43851da177e4SLinus Torvalds } 43861da177e4SLinus Torvalds 43879e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 43881da177e4SLinus Torvalds { 43898687b63aSAl Viro __be32 *p; 43901da177e4SLinus Torvalds uint32_t bmlen; 43911da177e4SLinus Torvalds int status; 43921da177e4SLinus Torvalds 43931da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 43941da177e4SLinus Torvalds if (status) 43951da177e4SLinus Torvalds return status; 4396c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4397c0eae66eSBenny Halevy if (unlikely(!p)) 4398c0eae66eSBenny Halevy goto out_overflow; 4399cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4400c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4401c0eae66eSBenny Halevy if (likely(p)) 44021da177e4SLinus Torvalds return 0; 4403c0eae66eSBenny Halevy out_overflow: 4404c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4405c0eae66eSBenny Halevy return -EIO; 44061da177e4SLinus Torvalds } 44071da177e4SLinus Torvalds 4408bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 44091da177e4SLinus Torvalds { 44108687b63aSAl Viro __be32 *p; 44111da177e4SLinus Torvalds uint32_t opnum; 44121da177e4SLinus Torvalds int32_t nfserr; 44131da177e4SLinus Torvalds 4414c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4415c0eae66eSBenny Halevy if (unlikely(!p)) 4416c0eae66eSBenny Halevy goto out_overflow; 44176f723f77SBenny Halevy opnum = be32_to_cpup(p++); 44181da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4419fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 44201da177e4SLinus Torvalds " %d\n", opnum); 44211da177e4SLinus Torvalds return -EIO; 44221da177e4SLinus Torvalds } 4423cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 44241da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4425c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4426c0eae66eSBenny Halevy if (unlikely(!p)) 4427c0eae66eSBenny Halevy goto out_overflow; 4428bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 4429bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 44301da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 44311da177e4SLinus Torvalds uint32_t len; 44321da177e4SLinus Torvalds 44331da177e4SLinus Torvalds /* skip netid string */ 4434c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4435c0eae66eSBenny Halevy if (unlikely(!p)) 4436c0eae66eSBenny Halevy goto out_overflow; 4437cccddf4fSBenny Halevy len = be32_to_cpup(p); 4438c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4439c0eae66eSBenny Halevy if (unlikely(!p)) 4440c0eae66eSBenny Halevy goto out_overflow; 44411da177e4SLinus Torvalds 44421da177e4SLinus Torvalds /* skip uaddr string */ 4443c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4444c0eae66eSBenny Halevy if (unlikely(!p)) 4445c0eae66eSBenny Halevy goto out_overflow; 4446cccddf4fSBenny Halevy len = be32_to_cpup(p); 4447c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4448c0eae66eSBenny Halevy if (unlikely(!p)) 4449c0eae66eSBenny Halevy goto out_overflow; 44501da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 44511da177e4SLinus Torvalds } else 4452856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 44531da177e4SLinus Torvalds 44541da177e4SLinus Torvalds return 0; 4455c0eae66eSBenny Halevy out_overflow: 4456c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4457c0eae66eSBenny Halevy return -EIO; 44581da177e4SLinus Torvalds } 44591da177e4SLinus Torvalds 44601da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 44611da177e4SLinus Torvalds { 44621da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 44631da177e4SLinus Torvalds } 44641da177e4SLinus Torvalds 44651da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 44661da177e4SLinus Torvalds { 44678687b63aSAl Viro __be32 *p; 44681da177e4SLinus Torvalds int status; 44691da177e4SLinus Torvalds 44701da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 44711da177e4SLinus Torvalds if (status) 44721da177e4SLinus Torvalds return status; 44731da177e4SLinus Torvalds 4474c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4475c0eae66eSBenny Halevy if (unlikely(!p)) 4476c0eae66eSBenny Halevy goto out_overflow; 44776f723f77SBenny Halevy res->count = be32_to_cpup(p++); 44786f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 447999398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 44801da177e4SLinus Torvalds return 0; 4481c0eae66eSBenny Halevy out_overflow: 4482c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4483c0eae66eSBenny Halevy return -EIO; 44841da177e4SLinus Torvalds } 44851da177e4SLinus Torvalds 44861da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 44871da177e4SLinus Torvalds { 44881da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 44891da177e4SLinus Torvalds } 44901da177e4SLinus Torvalds 449199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 449299fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 449399fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 449499fe60d0SBenny Halevy { 449599fe60d0SBenny Halevy __be32 *p; 449699fe60d0SBenny Halevy uint32_t dummy; 44972460ba57SBenny Halevy char *dummy_str; 449899fe60d0SBenny Halevy int status; 449999fe60d0SBenny Halevy struct nfs_client *clp = res->client; 450099fe60d0SBenny Halevy 450199fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 450299fe60d0SBenny Halevy if (status) 450399fe60d0SBenny Halevy return status; 450499fe60d0SBenny Halevy 4505c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4506c0eae66eSBenny Halevy if (unlikely(!p)) 4507c0eae66eSBenny Halevy goto out_overflow; 4508cccddf4fSBenny Halevy xdr_decode_hyper(p, &clp->cl_ex_clid); 4509c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4510c0eae66eSBenny Halevy if (unlikely(!p)) 4511c0eae66eSBenny Halevy goto out_overflow; 45126f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 45136f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 451499fe60d0SBenny Halevy 451599fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4516cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 451799fe60d0SBenny Halevy if (dummy != SP4_NONE) 451899fe60d0SBenny Halevy return -EIO; 451999fe60d0SBenny Halevy 452099fe60d0SBenny Halevy /* Throw away minor_id */ 4521c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4522c0eae66eSBenny Halevy if (unlikely(!p)) 4523c0eae66eSBenny Halevy goto out_overflow; 452499fe60d0SBenny Halevy 452599fe60d0SBenny Halevy /* Throw away Major id */ 45262460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45272460ba57SBenny Halevy if (unlikely(status)) 45282460ba57SBenny Halevy return status; 452999fe60d0SBenny Halevy 453099fe60d0SBenny Halevy /* Throw away server_scope */ 45312460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45322460ba57SBenny Halevy if (unlikely(status)) 45332460ba57SBenny Halevy return status; 453499fe60d0SBenny Halevy 453599fe60d0SBenny Halevy /* Throw away Implementation id array */ 45362460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45372460ba57SBenny Halevy if (unlikely(status)) 45382460ba57SBenny Halevy return status; 453999fe60d0SBenny Halevy 454099fe60d0SBenny Halevy return 0; 4541c0eae66eSBenny Halevy out_overflow: 4542c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4543c0eae66eSBenny Halevy return -EIO; 454499fe60d0SBenny Halevy } 4545fc931582SAndy Adamson 4546fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4547fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4548fc931582SAndy Adamson { 4549fc931582SAndy Adamson __be32 *p; 4550fc931582SAndy Adamson u32 nr_attrs; 4551fc931582SAndy Adamson 4552c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4553c0eae66eSBenny Halevy if (unlikely(!p)) 4554c0eae66eSBenny Halevy goto out_overflow; 45556f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 45566f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 45576f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 45586f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 45596f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 45606f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4561cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4562fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4563fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4564fc931582SAndy Adamson __func__, nr_attrs); 4565fc931582SAndy Adamson return -EINVAL; 4566fc931582SAndy Adamson } 4567c0eae66eSBenny Halevy if (nr_attrs == 1) { 4568c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4569c0eae66eSBenny Halevy if (unlikely(!p)) 4570c0eae66eSBenny Halevy goto out_overflow; 4571c0eae66eSBenny Halevy } 4572fc931582SAndy Adamson return 0; 4573c0eae66eSBenny Halevy out_overflow: 4574c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4575c0eae66eSBenny Halevy return -EIO; 4576fc931582SAndy Adamson } 4577fc931582SAndy Adamson 4578e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4579e78291e4SBenny Halevy { 4580e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4581fc931582SAndy Adamson } 4582fc931582SAndy Adamson 4583fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4584fc931582SAndy Adamson struct nfs41_create_session_res *res) 4585fc931582SAndy Adamson { 4586fc931582SAndy Adamson __be32 *p; 4587fc931582SAndy Adamson int status; 4588fc931582SAndy Adamson struct nfs_client *clp = res->client; 4589fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4590fc931582SAndy Adamson 4591fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4592e78291e4SBenny Halevy if (!status) 4593e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4594e78291e4SBenny Halevy if (unlikely(status)) 4595fc931582SAndy Adamson return status; 4596fc931582SAndy Adamson 4597fc931582SAndy Adamson /* seqid, flags */ 4598c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4599c0eae66eSBenny Halevy if (unlikely(!p)) 4600c0eae66eSBenny Halevy goto out_overflow; 46016f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4602cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4603fc931582SAndy Adamson 4604fc931582SAndy Adamson /* Channel attributes */ 4605fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4606fc931582SAndy Adamson if (!status) 4607fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4608fc931582SAndy Adamson return status; 4609c0eae66eSBenny Halevy out_overflow: 4610c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4611c0eae66eSBenny Halevy return -EIO; 4612fc931582SAndy Adamson } 46130f3e66c6SAndy Adamson 46140f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 46150f3e66c6SAndy Adamson { 46160f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 46170f3e66c6SAndy Adamson } 461818019753SRicardo Labiaga 461918019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 462018019753SRicardo Labiaga { 462118019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 462218019753SRicardo Labiaga } 462399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 462499fe60d0SBenny Halevy 46259b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 46269b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 46279b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 46289b7b9fccSAndy Adamson { 46299b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4630fc01cea9SAndy Adamson struct nfs4_slot *slot; 4631fc01cea9SAndy Adamson struct nfs4_sessionid id; 4632fc01cea9SAndy Adamson u32 dummy; 4633fc01cea9SAndy Adamson int status; 4634fc01cea9SAndy Adamson __be32 *p; 4635fc01cea9SAndy Adamson 46369b7b9fccSAndy Adamson if (!res->sr_session) 46379b7b9fccSAndy Adamson return 0; 46389b7b9fccSAndy Adamson 4639fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4640e78291e4SBenny Halevy if (!status) 4641e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 4642e78291e4SBenny Halevy if (unlikely(status)) 4643fc01cea9SAndy Adamson goto out_err; 46449b7b9fccSAndy Adamson 4645fc01cea9SAndy Adamson /* 4646fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4647fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4648fc01cea9SAndy Adamson */ 4649fdcb4577STrond Myklebust status = -EREMOTEIO; 4650fc01cea9SAndy Adamson 4651fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4652fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4653fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4654fc01cea9SAndy Adamson goto out_err; 4655fc01cea9SAndy Adamson } 4656e78291e4SBenny Halevy 4657c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4658c0eae66eSBenny Halevy if (unlikely(!p)) 4659c0eae66eSBenny Halevy goto out_overflow; 4660e78291e4SBenny Halevy 4661fc01cea9SAndy Adamson /* seqid */ 4662e78291e4SBenny Halevy slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; 46636f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4664fc01cea9SAndy Adamson if (dummy != slot->seq_nr) { 4665fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4666fc01cea9SAndy Adamson goto out_err; 4667fc01cea9SAndy Adamson } 4668fc01cea9SAndy Adamson /* slot id */ 46696f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4670fc01cea9SAndy Adamson if (dummy != res->sr_slotid) { 4671fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4672fc01cea9SAndy Adamson goto out_err; 4673fc01cea9SAndy Adamson } 4674fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 46756f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4676fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 46776f723f77SBenny Halevy dummy = be32_to_cpup(p++); 46780629e370SAlexandros Batsakis /* result flags */ 46790629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 4680fc01cea9SAndy Adamson status = 0; 4681fc01cea9SAndy Adamson out_err: 4682fc01cea9SAndy Adamson res->sr_status = status; 4683fc01cea9SAndy Adamson return status; 4684c0eae66eSBenny Halevy out_overflow: 4685c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4686c0eae66eSBenny Halevy status = -EIO; 4687c0eae66eSBenny Halevy goto out_err; 4688fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 46899b7b9fccSAndy Adamson return 0; 4690fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 46919b7b9fccSAndy Adamson } 46929b7b9fccSAndy Adamson 46931da177e4SLinus Torvalds /* 469449c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 469549c2559eSBenny Halevy */ 469649c2559eSBenny Halevy 469749c2559eSBenny Halevy /* 46981da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 46991da177e4SLinus Torvalds */ 47008687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 47011da177e4SLinus Torvalds { 47021da177e4SLinus Torvalds struct xdr_stream xdr; 47031da177e4SLinus Torvalds struct compound_hdr hdr; 47041da177e4SLinus Torvalds int status; 47051da177e4SLinus Torvalds 47061da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47071da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47081da177e4SLinus Torvalds if (status) 47091da177e4SLinus Torvalds goto out; 47109b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47119b7b9fccSAndy Adamson if (status) 47129b7b9fccSAndy Adamson goto out; 47131da177e4SLinus Torvalds status = decode_putfh(&xdr); 47141da177e4SLinus Torvalds if (status) 47151da177e4SLinus Torvalds goto out; 47161da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4717516a6af6STrond Myklebust if (status != 0) 4718516a6af6STrond Myklebust goto out; 471980e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 472080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 47211da177e4SLinus Torvalds out: 47221da177e4SLinus Torvalds return status; 47231da177e4SLinus Torvalds } 47241da177e4SLinus Torvalds 47251da177e4SLinus Torvalds /* 47261da177e4SLinus Torvalds * Decode ACCESS response 47271da177e4SLinus Torvalds */ 47288687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 47291da177e4SLinus Torvalds { 47301da177e4SLinus Torvalds struct xdr_stream xdr; 47311da177e4SLinus Torvalds struct compound_hdr hdr; 47321da177e4SLinus Torvalds int status; 47331da177e4SLinus Torvalds 47341da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47359b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47369b7b9fccSAndy Adamson if (status) 47379b7b9fccSAndy Adamson goto out; 47389b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47399b7b9fccSAndy Adamson if (status) 47401da177e4SLinus Torvalds goto out; 474176b32999STrond Myklebust status = decode_putfh(&xdr); 474276b32999STrond Myklebust if (status != 0) 474376b32999STrond Myklebust goto out; 47441da177e4SLinus Torvalds status = decode_access(&xdr, res); 474576b32999STrond Myklebust if (status != 0) 474676b32999STrond Myklebust goto out; 474780e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 474880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 47491da177e4SLinus Torvalds out: 47501da177e4SLinus Torvalds return status; 47511da177e4SLinus Torvalds } 47521da177e4SLinus Torvalds 47531da177e4SLinus Torvalds /* 47541da177e4SLinus Torvalds * Decode LOOKUP response 47551da177e4SLinus Torvalds */ 47568687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 47571da177e4SLinus Torvalds { 47581da177e4SLinus Torvalds struct xdr_stream xdr; 47591da177e4SLinus Torvalds struct compound_hdr hdr; 47601da177e4SLinus Torvalds int status; 47611da177e4SLinus Torvalds 47621da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47639b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47649b7b9fccSAndy Adamson if (status) 47659b7b9fccSAndy Adamson goto out; 47669b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47679b7b9fccSAndy Adamson if (status) 47681da177e4SLinus Torvalds goto out; 47691da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 47701da177e4SLinus Torvalds goto out; 47711da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 47721da177e4SLinus Torvalds goto out; 47731da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 47741da177e4SLinus Torvalds goto out; 477580e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server 477680e52aceSTrond Myklebust ,!RPC_IS_ASYNC(rqstp->rq_task)); 47771da177e4SLinus Torvalds out: 47781da177e4SLinus Torvalds return status; 47791da177e4SLinus Torvalds } 47801da177e4SLinus Torvalds 47811da177e4SLinus Torvalds /* 47821da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 47831da177e4SLinus Torvalds */ 47848687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 47851da177e4SLinus Torvalds { 47861da177e4SLinus Torvalds struct xdr_stream xdr; 47871da177e4SLinus Torvalds struct compound_hdr hdr; 47881da177e4SLinus Torvalds int status; 47891da177e4SLinus Torvalds 47901da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47919b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47929b7b9fccSAndy Adamson if (status) 47939b7b9fccSAndy Adamson goto out; 47949b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47959b7b9fccSAndy Adamson if (status) 47961da177e4SLinus Torvalds goto out; 47971da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 47981da177e4SLinus Torvalds goto out; 47991da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 480080e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 480180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48021da177e4SLinus Torvalds out: 48031da177e4SLinus Torvalds return status; 48041da177e4SLinus Torvalds } 48051da177e4SLinus Torvalds 48061da177e4SLinus Torvalds /* 48071da177e4SLinus Torvalds * Decode REMOVE response 48081da177e4SLinus Torvalds */ 48094fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 48101da177e4SLinus Torvalds { 48111da177e4SLinus Torvalds struct xdr_stream xdr; 48121da177e4SLinus Torvalds struct compound_hdr hdr; 48131da177e4SLinus Torvalds int status; 48141da177e4SLinus Torvalds 48151da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48169b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48179b7b9fccSAndy Adamson if (status) 48189b7b9fccSAndy Adamson goto out; 48199b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48209b7b9fccSAndy Adamson if (status) 48211da177e4SLinus Torvalds goto out; 482216e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 482316e42959STrond Myklebust goto out; 482416e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 482516e42959STrond Myklebust goto out; 4826d346890bSTrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server, 482780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48281da177e4SLinus Torvalds out: 48291da177e4SLinus Torvalds return status; 48301da177e4SLinus Torvalds } 48311da177e4SLinus Torvalds 48321da177e4SLinus Torvalds /* 48331da177e4SLinus Torvalds * Decode RENAME response 48341da177e4SLinus Torvalds */ 48358687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 48361da177e4SLinus Torvalds { 48371da177e4SLinus Torvalds struct xdr_stream xdr; 48381da177e4SLinus Torvalds struct compound_hdr hdr; 48391da177e4SLinus Torvalds int status; 48401da177e4SLinus Torvalds 48411da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48429b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48439b7b9fccSAndy Adamson if (status) 48449b7b9fccSAndy Adamson goto out; 48459b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48469b7b9fccSAndy Adamson if (status) 48471da177e4SLinus Torvalds goto out; 48481da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48491da177e4SLinus Torvalds goto out; 48501da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 48511da177e4SLinus Torvalds goto out; 48521da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48531da177e4SLinus Torvalds goto out; 48546caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 48556caf2c82STrond Myklebust goto out; 48566caf2c82STrond Myklebust /* Current FH is target directory */ 485780e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server, 485880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 48596caf2c82STrond Myklebust goto out; 48606caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 48616caf2c82STrond Myklebust goto out; 486280e52aceSTrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server, 486380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48641da177e4SLinus Torvalds out: 48651da177e4SLinus Torvalds return status; 48661da177e4SLinus Torvalds } 48671da177e4SLinus Torvalds 48681da177e4SLinus Torvalds /* 48691da177e4SLinus Torvalds * Decode LINK response 48701da177e4SLinus Torvalds */ 48718687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 48721da177e4SLinus Torvalds { 48731da177e4SLinus Torvalds struct xdr_stream xdr; 48741da177e4SLinus Torvalds struct compound_hdr hdr; 48751da177e4SLinus Torvalds int status; 48761da177e4SLinus Torvalds 48771da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48789b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48799b7b9fccSAndy Adamson if (status) 48809b7b9fccSAndy Adamson goto out; 48819b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48829b7b9fccSAndy Adamson if (status) 48831da177e4SLinus Torvalds goto out; 48841da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48851da177e4SLinus Torvalds goto out; 48861da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 48871da177e4SLinus Torvalds goto out; 48881da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48891da177e4SLinus Torvalds goto out; 489091ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 489191ba2eeeSTrond Myklebust goto out; 489291ba2eeeSTrond Myklebust /* 489391ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 489491ba2eeeSTrond Myklebust * filehandle. 489591ba2eeeSTrond Myklebust */ 489680e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server, 489780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 489891ba2eeeSTrond Myklebust goto out; 489991ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 490091ba2eeeSTrond Myklebust goto out; 490180e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 490280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49031da177e4SLinus Torvalds out: 49041da177e4SLinus Torvalds return status; 49051da177e4SLinus Torvalds } 49061da177e4SLinus Torvalds 49071da177e4SLinus Torvalds /* 49081da177e4SLinus Torvalds * Decode CREATE response 49091da177e4SLinus Torvalds */ 49108687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 49111da177e4SLinus Torvalds { 49121da177e4SLinus Torvalds struct xdr_stream xdr; 49131da177e4SLinus Torvalds struct compound_hdr hdr; 49141da177e4SLinus Torvalds int status; 49151da177e4SLinus Torvalds 49161da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49179b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 49189b7b9fccSAndy Adamson if (status) 49199b7b9fccSAndy Adamson goto out; 49209b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49219b7b9fccSAndy Adamson if (status) 49221da177e4SLinus Torvalds goto out; 49231da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49241da177e4SLinus Torvalds goto out; 492556ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 492656ae19f3STrond Myklebust goto out; 49271da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 49281da177e4SLinus Torvalds goto out; 49291da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 49301da177e4SLinus Torvalds goto out; 493180e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server, 493280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 493356ae19f3STrond Myklebust goto out; 493456ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 493556ae19f3STrond Myklebust goto out; 493680e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server, 493780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49381da177e4SLinus Torvalds out: 49391da177e4SLinus Torvalds return status; 49401da177e4SLinus Torvalds } 49411da177e4SLinus Torvalds 49421da177e4SLinus Torvalds /* 49431da177e4SLinus Torvalds * Decode SYMLINK response 49441da177e4SLinus Torvalds */ 49458687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 49461da177e4SLinus Torvalds { 49471da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 49481da177e4SLinus Torvalds } 49491da177e4SLinus Torvalds 49501da177e4SLinus Torvalds /* 49511da177e4SLinus Torvalds * Decode GETATTR response 49521da177e4SLinus Torvalds */ 49538687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 49541da177e4SLinus Torvalds { 49551da177e4SLinus Torvalds struct xdr_stream xdr; 49561da177e4SLinus Torvalds struct compound_hdr hdr; 49571da177e4SLinus Torvalds int status; 49581da177e4SLinus Torvalds 49591da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49601da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49611da177e4SLinus Torvalds if (status) 49621da177e4SLinus Torvalds goto out; 49639b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49649b7b9fccSAndy Adamson if (status) 49659b7b9fccSAndy Adamson goto out; 49661da177e4SLinus Torvalds status = decode_putfh(&xdr); 49671da177e4SLinus Torvalds if (status) 49681da177e4SLinus Torvalds goto out; 496980e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 497080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49711da177e4SLinus Torvalds out: 49721da177e4SLinus Torvalds return status; 49731da177e4SLinus Torvalds } 49741da177e4SLinus Torvalds 497523ec6965SJ. Bruce Fields /* 497623ec6965SJ. Bruce Fields * Encode an SETACL request 497723ec6965SJ. Bruce Fields */ 497823ec6965SJ. Bruce Fields static int 49798687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 498023ec6965SJ. Bruce Fields { 498123ec6965SJ. Bruce Fields struct xdr_stream xdr; 498223ec6965SJ. Bruce Fields struct compound_hdr hdr = { 498366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 498423ec6965SJ. Bruce Fields }; 498523ec6965SJ. Bruce Fields int status; 498623ec6965SJ. Bruce Fields 498723ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 49880c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 49899b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 4990cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 4991d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 4992d017931cSAndy Adamson encode_nops(&hdr); 499323ec6965SJ. Bruce Fields return status; 499423ec6965SJ. Bruce Fields } 499505d564feSAndy Adamson 499623ec6965SJ. Bruce Fields /* 499723ec6965SJ. Bruce Fields * Decode SETACL response 499823ec6965SJ. Bruce Fields */ 499923ec6965SJ. Bruce Fields static int 500073c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 500173c403a9SBenny Halevy struct nfs_setaclres *res) 500223ec6965SJ. Bruce Fields { 500323ec6965SJ. Bruce Fields struct xdr_stream xdr; 500423ec6965SJ. Bruce Fields struct compound_hdr hdr; 500523ec6965SJ. Bruce Fields int status; 500623ec6965SJ. Bruce Fields 500723ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 500823ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 500923ec6965SJ. Bruce Fields if (status) 501023ec6965SJ. Bruce Fields goto out; 50119b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50129b7b9fccSAndy Adamson if (status) 50139b7b9fccSAndy Adamson goto out; 501423ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 501523ec6965SJ. Bruce Fields if (status) 501623ec6965SJ. Bruce Fields goto out; 50179e9ecc03SBenny Halevy status = decode_setattr(&xdr); 501823ec6965SJ. Bruce Fields out: 501923ec6965SJ. Bruce Fields return status; 502023ec6965SJ. Bruce Fields } 50211da177e4SLinus Torvalds 50221da177e4SLinus Torvalds /* 5023029d105eSJ. Bruce Fields * Decode GETACL response 5024029d105eSJ. Bruce Fields */ 5025029d105eSJ. Bruce Fields static int 5026663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 5027663c79b3SBenny Halevy struct nfs_getaclres *res) 5028029d105eSJ. Bruce Fields { 5029029d105eSJ. Bruce Fields struct xdr_stream xdr; 5030029d105eSJ. Bruce Fields struct compound_hdr hdr; 5031029d105eSJ. Bruce Fields int status; 5032029d105eSJ. Bruce Fields 5033029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5034029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 5035029d105eSJ. Bruce Fields if (status) 5036029d105eSJ. Bruce Fields goto out; 50379b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50389b7b9fccSAndy Adamson if (status) 50399b7b9fccSAndy Adamson goto out; 5040029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 5041029d105eSJ. Bruce Fields if (status) 5042029d105eSJ. Bruce Fields goto out; 5043663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 5044029d105eSJ. Bruce Fields 5045029d105eSJ. Bruce Fields out: 5046029d105eSJ. Bruce Fields return status; 5047029d105eSJ. Bruce Fields } 5048029d105eSJ. Bruce Fields 5049029d105eSJ. Bruce Fields /* 50501da177e4SLinus Torvalds * Decode CLOSE response 50511da177e4SLinus Torvalds */ 50528687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 50531da177e4SLinus Torvalds { 50541da177e4SLinus Torvalds struct xdr_stream xdr; 50551da177e4SLinus Torvalds struct compound_hdr hdr; 50561da177e4SLinus Torvalds int status; 50571da177e4SLinus Torvalds 50581da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50591da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50601da177e4SLinus Torvalds if (status) 50611da177e4SLinus Torvalds goto out; 50629b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50639b7b9fccSAndy Adamson if (status) 50649b7b9fccSAndy Adamson goto out; 50651da177e4SLinus Torvalds status = decode_putfh(&xdr); 50661da177e4SLinus Torvalds if (status) 50671da177e4SLinus Torvalds goto out; 50681da177e4SLinus Torvalds status = decode_close(&xdr, res); 5069516a6af6STrond Myklebust if (status != 0) 5070516a6af6STrond Myklebust goto out; 5071516a6af6STrond Myklebust /* 5072516a6af6STrond Myklebust * Note: Server may do delete on close for this file 5073516a6af6STrond Myklebust * in which case the getattr call will fail with 5074516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 5075516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 5076516a6af6STrond Myklebust */ 507780e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 507880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50791da177e4SLinus Torvalds out: 50801da177e4SLinus Torvalds return status; 50811da177e4SLinus Torvalds } 50821da177e4SLinus Torvalds 50831da177e4SLinus Torvalds /* 50841da177e4SLinus Torvalds * Decode OPEN response 50851da177e4SLinus Torvalds */ 50868687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 50871da177e4SLinus Torvalds { 50881da177e4SLinus Torvalds struct xdr_stream xdr; 50891da177e4SLinus Torvalds struct compound_hdr hdr; 50901da177e4SLinus Torvalds int status; 50911da177e4SLinus Torvalds 50921da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50931da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50941da177e4SLinus Torvalds if (status) 50951da177e4SLinus Torvalds goto out; 50969b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50979b7b9fccSAndy Adamson if (status) 50989b7b9fccSAndy Adamson goto out; 50991da177e4SLinus Torvalds status = decode_putfh(&xdr); 51001da177e4SLinus Torvalds if (status) 51011da177e4SLinus Torvalds goto out; 510256ae19f3STrond Myklebust status = decode_savefh(&xdr); 510356ae19f3STrond Myklebust if (status) 510456ae19f3STrond Myklebust goto out; 51051da177e4SLinus Torvalds status = decode_open(&xdr, res); 51061da177e4SLinus Torvalds if (status) 51071da177e4SLinus Torvalds goto out; 51089936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 51091da177e4SLinus Torvalds goto out; 511080e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server, 511180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 511256ae19f3STrond Myklebust goto out; 5113365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 511456ae19f3STrond Myklebust goto out; 511580e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server, 511680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51171da177e4SLinus Torvalds out: 51181da177e4SLinus Torvalds return status; 51191da177e4SLinus Torvalds } 51201da177e4SLinus Torvalds 51211da177e4SLinus Torvalds /* 51221da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 51231da177e4SLinus Torvalds */ 51248687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 51251da177e4SLinus Torvalds { 51261da177e4SLinus Torvalds struct xdr_stream xdr; 51271da177e4SLinus Torvalds struct compound_hdr hdr; 51281da177e4SLinus Torvalds int status; 51291da177e4SLinus Torvalds 51301da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51311da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51321da177e4SLinus Torvalds if (status) 51331da177e4SLinus Torvalds goto out; 51341da177e4SLinus Torvalds status = decode_putfh(&xdr); 51351da177e4SLinus Torvalds if (status) 51361da177e4SLinus Torvalds goto out; 51371da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 51381da177e4SLinus Torvalds out: 51391da177e4SLinus Torvalds return status; 51401da177e4SLinus Torvalds } 51411da177e4SLinus Torvalds 51421da177e4SLinus Torvalds /* 51431da177e4SLinus Torvalds * Decode OPEN response 51441da177e4SLinus Torvalds */ 51458687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 51461da177e4SLinus Torvalds { 51471da177e4SLinus Torvalds struct xdr_stream xdr; 51481da177e4SLinus Torvalds struct compound_hdr hdr; 51491da177e4SLinus Torvalds int status; 51501da177e4SLinus Torvalds 51511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51531da177e4SLinus Torvalds if (status) 51541da177e4SLinus Torvalds goto out; 51559b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51569b7b9fccSAndy Adamson if (status) 51579b7b9fccSAndy Adamson goto out; 51581da177e4SLinus Torvalds status = decode_putfh(&xdr); 51591da177e4SLinus Torvalds if (status) 51601da177e4SLinus Torvalds goto out; 51611da177e4SLinus Torvalds status = decode_open(&xdr, res); 5162864472e9STrond Myklebust if (status) 5163864472e9STrond Myklebust goto out; 516480e52aceSTrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server, 516580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51661da177e4SLinus Torvalds out: 51671da177e4SLinus Torvalds return status; 51681da177e4SLinus Torvalds } 51691da177e4SLinus Torvalds 51701da177e4SLinus Torvalds /* 51711da177e4SLinus Torvalds * Decode SETATTR response 51721da177e4SLinus Torvalds */ 51738687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 51741da177e4SLinus Torvalds { 51751da177e4SLinus Torvalds struct xdr_stream xdr; 51761da177e4SLinus Torvalds struct compound_hdr hdr; 51771da177e4SLinus Torvalds int status; 51781da177e4SLinus Torvalds 51791da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51801da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51811da177e4SLinus Torvalds if (status) 51821da177e4SLinus Torvalds goto out; 51839b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51849b7b9fccSAndy Adamson if (status) 51859b7b9fccSAndy Adamson goto out; 51861da177e4SLinus Torvalds status = decode_putfh(&xdr); 51871da177e4SLinus Torvalds if (status) 51881da177e4SLinus Torvalds goto out; 51899e9ecc03SBenny Halevy status = decode_setattr(&xdr); 51901da177e4SLinus Torvalds if (status) 51911da177e4SLinus Torvalds goto out; 519280e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 519380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51941da177e4SLinus Torvalds out: 51951da177e4SLinus Torvalds return status; 51961da177e4SLinus Torvalds } 51971da177e4SLinus Torvalds 51981da177e4SLinus Torvalds /* 51991da177e4SLinus Torvalds * Decode LOCK response 52001da177e4SLinus Torvalds */ 52018687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 52021da177e4SLinus Torvalds { 52031da177e4SLinus Torvalds struct xdr_stream xdr; 52041da177e4SLinus Torvalds struct compound_hdr hdr; 52051da177e4SLinus Torvalds int status; 52061da177e4SLinus Torvalds 52071da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52081da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52091da177e4SLinus Torvalds if (status) 52101da177e4SLinus Torvalds goto out; 52119b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52129b7b9fccSAndy Adamson if (status) 52139b7b9fccSAndy Adamson goto out; 52141da177e4SLinus Torvalds status = decode_putfh(&xdr); 52151da177e4SLinus Torvalds if (status) 52161da177e4SLinus Torvalds goto out; 52171da177e4SLinus Torvalds status = decode_lock(&xdr, res); 52181da177e4SLinus Torvalds out: 52191da177e4SLinus Torvalds return status; 52201da177e4SLinus Torvalds } 52211da177e4SLinus Torvalds 52221da177e4SLinus Torvalds /* 52231da177e4SLinus Torvalds * Decode LOCKT response 52241da177e4SLinus Torvalds */ 52258687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 52261da177e4SLinus Torvalds { 52271da177e4SLinus Torvalds struct xdr_stream xdr; 52281da177e4SLinus Torvalds struct compound_hdr hdr; 52291da177e4SLinus Torvalds int status; 52301da177e4SLinus Torvalds 52311da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52321da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52331da177e4SLinus Torvalds if (status) 52341da177e4SLinus Torvalds goto out; 52359b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52369b7b9fccSAndy Adamson if (status) 52379b7b9fccSAndy Adamson goto out; 52381da177e4SLinus Torvalds status = decode_putfh(&xdr); 52391da177e4SLinus Torvalds if (status) 52401da177e4SLinus Torvalds goto out; 52411da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 52421da177e4SLinus Torvalds out: 52431da177e4SLinus Torvalds return status; 52441da177e4SLinus Torvalds } 52451da177e4SLinus Torvalds 52461da177e4SLinus Torvalds /* 52471da177e4SLinus Torvalds * Decode LOCKU response 52481da177e4SLinus Torvalds */ 52498687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 52501da177e4SLinus Torvalds { 52511da177e4SLinus Torvalds struct xdr_stream xdr; 52521da177e4SLinus Torvalds struct compound_hdr hdr; 52531da177e4SLinus Torvalds int status; 52541da177e4SLinus Torvalds 52551da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52561da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52571da177e4SLinus Torvalds if (status) 52581da177e4SLinus Torvalds goto out; 52599b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52609b7b9fccSAndy Adamson if (status) 52619b7b9fccSAndy Adamson goto out; 52621da177e4SLinus Torvalds status = decode_putfh(&xdr); 52631da177e4SLinus Torvalds if (status) 52641da177e4SLinus Torvalds goto out; 52651da177e4SLinus Torvalds status = decode_locku(&xdr, res); 52661da177e4SLinus Torvalds out: 52671da177e4SLinus Torvalds return status; 52681da177e4SLinus Torvalds } 52691da177e4SLinus Torvalds 52701da177e4SLinus Torvalds /* 52711da177e4SLinus Torvalds * Decode READLINK response 52721da177e4SLinus Torvalds */ 5273f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 5274f50c7000SBenny Halevy struct nfs4_readlink_res *res) 52751da177e4SLinus Torvalds { 52761da177e4SLinus Torvalds struct xdr_stream xdr; 52771da177e4SLinus Torvalds struct compound_hdr hdr; 52781da177e4SLinus Torvalds int status; 52791da177e4SLinus Torvalds 52801da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52811da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52821da177e4SLinus Torvalds if (status) 52831da177e4SLinus Torvalds goto out; 52849b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52859b7b9fccSAndy Adamson if (status) 52869b7b9fccSAndy Adamson goto out; 52871da177e4SLinus Torvalds status = decode_putfh(&xdr); 52881da177e4SLinus Torvalds if (status) 52891da177e4SLinus Torvalds goto out; 52901da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 52911da177e4SLinus Torvalds out: 52921da177e4SLinus Torvalds return status; 52931da177e4SLinus Torvalds } 52941da177e4SLinus Torvalds 52951da177e4SLinus Torvalds /* 52961da177e4SLinus Torvalds * Decode READDIR response 52971da177e4SLinus Torvalds */ 52988687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 52991da177e4SLinus Torvalds { 53001da177e4SLinus Torvalds struct xdr_stream xdr; 53011da177e4SLinus Torvalds struct compound_hdr hdr; 53021da177e4SLinus Torvalds int status; 53031da177e4SLinus Torvalds 53041da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53051da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53061da177e4SLinus Torvalds if (status) 53071da177e4SLinus Torvalds goto out; 53089b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53099b7b9fccSAndy Adamson if (status) 53109b7b9fccSAndy Adamson goto out; 53111da177e4SLinus Torvalds status = decode_putfh(&xdr); 53121da177e4SLinus Torvalds if (status) 53131da177e4SLinus Torvalds goto out; 53141da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 53151da177e4SLinus Torvalds out: 53161da177e4SLinus Torvalds return status; 53171da177e4SLinus Torvalds } 53181da177e4SLinus Torvalds 53191da177e4SLinus Torvalds /* 53201da177e4SLinus Torvalds * Decode Read response 53211da177e4SLinus Torvalds */ 53228687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 53231da177e4SLinus Torvalds { 53241da177e4SLinus Torvalds struct xdr_stream xdr; 53251da177e4SLinus Torvalds struct compound_hdr hdr; 53261da177e4SLinus Torvalds int status; 53271da177e4SLinus Torvalds 53281da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53291da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53301da177e4SLinus Torvalds if (status) 53311da177e4SLinus Torvalds goto out; 53329b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53339b7b9fccSAndy Adamson if (status) 53349b7b9fccSAndy Adamson goto out; 53351da177e4SLinus Torvalds status = decode_putfh(&xdr); 53361da177e4SLinus Torvalds if (status) 53371da177e4SLinus Torvalds goto out; 53381da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 53391da177e4SLinus Torvalds if (!status) 53401da177e4SLinus Torvalds status = res->count; 53411da177e4SLinus Torvalds out: 53421da177e4SLinus Torvalds return status; 53431da177e4SLinus Torvalds } 53441da177e4SLinus Torvalds 53451da177e4SLinus Torvalds /* 53461da177e4SLinus Torvalds * Decode WRITE response 53471da177e4SLinus Torvalds */ 53488687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 53491da177e4SLinus Torvalds { 53501da177e4SLinus Torvalds struct xdr_stream xdr; 53511da177e4SLinus Torvalds struct compound_hdr hdr; 53521da177e4SLinus Torvalds int status; 53531da177e4SLinus Torvalds 53541da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53551da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53561da177e4SLinus Torvalds if (status) 53571da177e4SLinus Torvalds goto out; 53589b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53599b7b9fccSAndy Adamson if (status) 53609b7b9fccSAndy Adamson goto out; 53611da177e4SLinus Torvalds status = decode_putfh(&xdr); 53621da177e4SLinus Torvalds if (status) 53631da177e4SLinus Torvalds goto out; 53641da177e4SLinus Torvalds status = decode_write(&xdr, res); 53654f9838c7STrond Myklebust if (status) 53664f9838c7STrond Myklebust goto out; 536780e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 536880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53691da177e4SLinus Torvalds if (!status) 53701da177e4SLinus Torvalds status = res->count; 53711da177e4SLinus Torvalds out: 53721da177e4SLinus Torvalds return status; 53731da177e4SLinus Torvalds } 53741da177e4SLinus Torvalds 53751da177e4SLinus Torvalds /* 53761da177e4SLinus Torvalds * Decode COMMIT response 53771da177e4SLinus Torvalds */ 53788687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 53791da177e4SLinus Torvalds { 53801da177e4SLinus Torvalds struct xdr_stream xdr; 53811da177e4SLinus Torvalds struct compound_hdr hdr; 53821da177e4SLinus Torvalds int status; 53831da177e4SLinus Torvalds 53841da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53851da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53861da177e4SLinus Torvalds if (status) 53871da177e4SLinus Torvalds goto out; 53889b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53899b7b9fccSAndy Adamson if (status) 53909b7b9fccSAndy Adamson goto out; 53911da177e4SLinus Torvalds status = decode_putfh(&xdr); 53921da177e4SLinus Torvalds if (status) 53931da177e4SLinus Torvalds goto out; 53941da177e4SLinus Torvalds status = decode_commit(&xdr, res); 53954f9838c7STrond Myklebust if (status) 53964f9838c7STrond Myklebust goto out; 539780e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 539880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53991da177e4SLinus Torvalds out: 54001da177e4SLinus Torvalds return status; 54011da177e4SLinus Torvalds } 54021da177e4SLinus Torvalds 54031da177e4SLinus Torvalds /* 54048b173218SRicardo Labiaga * Decode FSINFO response 54051da177e4SLinus Torvalds */ 54063dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 54073dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 54081da177e4SLinus Torvalds { 54091da177e4SLinus Torvalds struct xdr_stream xdr; 54101da177e4SLinus Torvalds struct compound_hdr hdr; 54111da177e4SLinus Torvalds int status; 54121da177e4SLinus Torvalds 54131da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54141da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54151da177e4SLinus Torvalds if (!status) 54169b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54179b7b9fccSAndy Adamson if (!status) 54181da177e4SLinus Torvalds status = decode_putfh(&xdr); 54191da177e4SLinus Torvalds if (!status) 54203dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 54211da177e4SLinus Torvalds return status; 54221da177e4SLinus Torvalds } 54231da177e4SLinus Torvalds 54241da177e4SLinus Torvalds /* 54258b173218SRicardo Labiaga * Decode PATHCONF response 54261da177e4SLinus Torvalds */ 5427d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5428d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 54291da177e4SLinus Torvalds { 54301da177e4SLinus Torvalds struct xdr_stream xdr; 54311da177e4SLinus Torvalds struct compound_hdr hdr; 54321da177e4SLinus Torvalds int status; 54331da177e4SLinus Torvalds 54341da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54351da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54361da177e4SLinus Torvalds if (!status) 54379b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54389b7b9fccSAndy Adamson if (!status) 54391da177e4SLinus Torvalds status = decode_putfh(&xdr); 54401da177e4SLinus Torvalds if (!status) 5441d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 54421da177e4SLinus Torvalds return status; 54431da177e4SLinus Torvalds } 54441da177e4SLinus Torvalds 54451da177e4SLinus Torvalds /* 54468b173218SRicardo Labiaga * Decode STATFS response 54471da177e4SLinus Torvalds */ 544824ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 544924ad148aSBenny Halevy struct nfs4_statfs_res *res) 54501da177e4SLinus Torvalds { 54511da177e4SLinus Torvalds struct xdr_stream xdr; 54521da177e4SLinus Torvalds struct compound_hdr hdr; 54531da177e4SLinus Torvalds int status; 54541da177e4SLinus Torvalds 54551da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54561da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54571da177e4SLinus Torvalds if (!status) 54589b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54599b7b9fccSAndy Adamson if (!status) 54601da177e4SLinus Torvalds status = decode_putfh(&xdr); 54611da177e4SLinus Torvalds if (!status) 546224ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 54631da177e4SLinus Torvalds return status; 54641da177e4SLinus Torvalds } 54651da177e4SLinus Torvalds 54661da177e4SLinus Torvalds /* 54678b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 54681da177e4SLinus Torvalds */ 54698687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 54701da177e4SLinus Torvalds { 54711da177e4SLinus Torvalds struct xdr_stream xdr; 54721da177e4SLinus Torvalds struct compound_hdr hdr; 54731da177e4SLinus Torvalds int status; 54741da177e4SLinus Torvalds 54751da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54769b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 54779b7b9fccSAndy Adamson if (status) 54789b7b9fccSAndy Adamson goto out; 54799b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54809b7b9fccSAndy Adamson if (status) 54811da177e4SLinus Torvalds goto out; 54821da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 54831da177e4SLinus Torvalds goto out; 54841da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 54851da177e4SLinus Torvalds out: 54861da177e4SLinus Torvalds return status; 54871da177e4SLinus Torvalds } 54881da177e4SLinus Torvalds 54891da177e4SLinus Torvalds /* 54901da177e4SLinus Torvalds * Decode RENEW response 54911da177e4SLinus Torvalds */ 54928687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 54931da177e4SLinus Torvalds { 54941da177e4SLinus Torvalds struct xdr_stream xdr; 54951da177e4SLinus Torvalds struct compound_hdr hdr; 54961da177e4SLinus Torvalds int status; 54971da177e4SLinus Torvalds 54981da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54991da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55001da177e4SLinus Torvalds if (!status) 55011da177e4SLinus Torvalds status = decode_renew(&xdr); 55021da177e4SLinus Torvalds return status; 55031da177e4SLinus Torvalds } 55041da177e4SLinus Torvalds 55051da177e4SLinus Torvalds /* 55068b173218SRicardo Labiaga * Decode SETCLIENTID response 55071da177e4SLinus Torvalds */ 55088687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5509bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 55101da177e4SLinus Torvalds { 55111da177e4SLinus Torvalds struct xdr_stream xdr; 55121da177e4SLinus Torvalds struct compound_hdr hdr; 55131da177e4SLinus Torvalds int status; 55141da177e4SLinus Torvalds 55151da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55161da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55171da177e4SLinus Torvalds if (!status) 5518bb8b27e5STrond Myklebust status = decode_setclientid(&xdr, res); 55191da177e4SLinus Torvalds return status; 55201da177e4SLinus Torvalds } 55211da177e4SLinus Torvalds 55221da177e4SLinus Torvalds /* 55238b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 55241da177e4SLinus Torvalds */ 55258687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 55261da177e4SLinus Torvalds { 55271da177e4SLinus Torvalds struct xdr_stream xdr; 55281da177e4SLinus Torvalds struct compound_hdr hdr; 55291da177e4SLinus Torvalds int status; 55301da177e4SLinus Torvalds 55311da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55321da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55331da177e4SLinus Torvalds if (!status) 55341da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 55351da177e4SLinus Torvalds if (!status) 55361da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 55371da177e4SLinus Torvalds if (!status) 55381da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 55391da177e4SLinus Torvalds return status; 55401da177e4SLinus Torvalds } 55411da177e4SLinus Torvalds 55421da177e4SLinus Torvalds /* 55438b173218SRicardo Labiaga * Decode DELEGRETURN response 55441da177e4SLinus Torvalds */ 55458687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 55461da177e4SLinus Torvalds { 55471da177e4SLinus Torvalds struct xdr_stream xdr; 55481da177e4SLinus Torvalds struct compound_hdr hdr; 55491da177e4SLinus Torvalds int status; 55501da177e4SLinus Torvalds 55511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 55521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55539b7b9fccSAndy Adamson if (status) 55549b7b9fccSAndy Adamson goto out; 55559b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 55569b7b9fccSAndy Adamson if (status) 5557fa178f29STrond Myklebust goto out; 55581da177e4SLinus Torvalds status = decode_putfh(&xdr); 5559fa178f29STrond Myklebust if (status != 0) 5560fa178f29STrond Myklebust goto out; 55611da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5562556ae3bbSJeff Layton if (status != 0) 5563556ae3bbSJeff Layton goto out; 556480e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 556580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 5566fa178f29STrond Myklebust out: 55671da177e4SLinus Torvalds return status; 55681da177e4SLinus Torvalds } 55691da177e4SLinus Torvalds 5570683b57b4STrond Myklebust /* 55718b173218SRicardo Labiaga * Decode FS_LOCATIONS response 5572683b57b4STrond Myklebust */ 557322958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 557422958463SBenny Halevy struct nfs4_fs_locations_res *res) 5575683b57b4STrond Myklebust { 5576683b57b4STrond Myklebust struct xdr_stream xdr; 5577683b57b4STrond Myklebust struct compound_hdr hdr; 5578683b57b4STrond Myklebust int status; 5579683b57b4STrond Myklebust 5580683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5581683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 55829b7b9fccSAndy Adamson if (status) 55839b7b9fccSAndy Adamson goto out; 55849b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 55859b7b9fccSAndy Adamson if (status) 5586683b57b4STrond Myklebust goto out; 5587683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5588683b57b4STrond Myklebust goto out; 5589683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5590683b57b4STrond Myklebust goto out; 5591683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 559222958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 559380e52aceSTrond Myklebust res->fs_locations->server, 559480e52aceSTrond Myklebust !RPC_IS_ASYNC(req->rq_task)); 5595683b57b4STrond Myklebust out: 5596683b57b4STrond Myklebust return status; 5597683b57b4STrond Myklebust } 5598683b57b4STrond Myklebust 559999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 560099fe60d0SBenny Halevy /* 56018b173218SRicardo Labiaga * Decode EXCHANGE_ID response 560299fe60d0SBenny Halevy */ 560399fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 560499fe60d0SBenny Halevy void *res) 560599fe60d0SBenny Halevy { 560699fe60d0SBenny Halevy struct xdr_stream xdr; 560799fe60d0SBenny Halevy struct compound_hdr hdr; 560899fe60d0SBenny Halevy int status; 560999fe60d0SBenny Halevy 561099fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 561199fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 561299fe60d0SBenny Halevy if (!status) 561399fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 561499fe60d0SBenny Halevy return status; 561599fe60d0SBenny Halevy } 56162050f0ccSAndy Adamson 56172050f0ccSAndy Adamson /* 56188b173218SRicardo Labiaga * Decode CREATE_SESSION response 5619fc931582SAndy Adamson */ 5620fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5621fc931582SAndy Adamson struct nfs41_create_session_res *res) 5622fc931582SAndy Adamson { 5623fc931582SAndy Adamson struct xdr_stream xdr; 5624fc931582SAndy Adamson struct compound_hdr hdr; 5625fc931582SAndy Adamson int status; 5626fc931582SAndy Adamson 5627fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5628fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5629fc931582SAndy Adamson if (!status) 5630fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5631fc931582SAndy Adamson return status; 5632fc931582SAndy Adamson } 5633fc931582SAndy Adamson 5634fc931582SAndy Adamson /* 56358b173218SRicardo Labiaga * Decode DESTROY_SESSION response 56360f3e66c6SAndy Adamson */ 56370f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 56380f3e66c6SAndy Adamson void *dummy) 56390f3e66c6SAndy Adamson { 56400f3e66c6SAndy Adamson struct xdr_stream xdr; 56410f3e66c6SAndy Adamson struct compound_hdr hdr; 56420f3e66c6SAndy Adamson int status; 56430f3e66c6SAndy Adamson 56440f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56450f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 56460f3e66c6SAndy Adamson if (!status) 56470f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 56480f3e66c6SAndy Adamson return status; 56490f3e66c6SAndy Adamson } 56500f3e66c6SAndy Adamson 56510f3e66c6SAndy Adamson /* 56528b173218SRicardo Labiaga * Decode SEQUENCE response 5653fc01cea9SAndy Adamson */ 5654fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 5655fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5656fc01cea9SAndy Adamson { 5657fc01cea9SAndy Adamson struct xdr_stream xdr; 5658fc01cea9SAndy Adamson struct compound_hdr hdr; 5659fc01cea9SAndy Adamson int status; 5660fc01cea9SAndy Adamson 5661fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5662fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5663fc01cea9SAndy Adamson if (!status) 5664fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 5665fc01cea9SAndy Adamson return status; 5666fc01cea9SAndy Adamson } 5667fc01cea9SAndy Adamson 5668fc01cea9SAndy Adamson /* 56698b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 56702050f0ccSAndy Adamson */ 56712050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 56722050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 56732050f0ccSAndy Adamson { 56742050f0ccSAndy Adamson struct xdr_stream xdr; 56752050f0ccSAndy Adamson struct compound_hdr hdr; 56762050f0ccSAndy Adamson int status; 56772050f0ccSAndy Adamson 56782050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56792050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 56802050f0ccSAndy Adamson if (!status) 56812050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 56822050f0ccSAndy Adamson if (!status) 56832050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 56842050f0ccSAndy Adamson if (!status) 56852050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 56862050f0ccSAndy Adamson return status; 56872050f0ccSAndy Adamson } 568818019753SRicardo Labiaga 568918019753SRicardo Labiaga /* 569018019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 569118019753SRicardo Labiaga */ 569218019753SRicardo Labiaga static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p, 569318019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 569418019753SRicardo Labiaga { 569518019753SRicardo Labiaga struct xdr_stream xdr; 569618019753SRicardo Labiaga struct compound_hdr hdr; 569718019753SRicardo Labiaga int status; 569818019753SRicardo Labiaga 569918019753SRicardo Labiaga xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 570018019753SRicardo Labiaga status = decode_compound_hdr(&xdr, &hdr); 570118019753SRicardo Labiaga if (!status) 570218019753SRicardo Labiaga status = decode_sequence(&xdr, &res->seq_res, rqstp); 570318019753SRicardo Labiaga if (!status) 570418019753SRicardo Labiaga status = decode_reclaim_complete(&xdr, (void *)NULL); 570518019753SRicardo Labiaga return status; 570618019753SRicardo Labiaga } 570799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 570899fe60d0SBenny Halevy 57090dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 57101da177e4SLinus Torvalds { 57111da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 57121da177e4SLinus Torvalds uint32_t len; 57131da177e4SLinus Torvalds 57141da177e4SLinus Torvalds if (!*p++) { 57151da177e4SLinus Torvalds if (!*p) 57161da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 57171da177e4SLinus Torvalds entry->eof = 1; 57181da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 57191da177e4SLinus Torvalds } 57201da177e4SLinus Torvalds 57211da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 57221da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 57231da177e4SLinus Torvalds entry->len = ntohl(*p++); 57241da177e4SLinus Torvalds entry->name = (const char *) p; 57251da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 57261da177e4SLinus Torvalds 57271da177e4SLinus Torvalds /* 57281da177e4SLinus Torvalds * In case the server doesn't return an inode number, 57291da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 57301da177e4SLinus Torvalds * since glibc seems to choke on it...) 57311da177e4SLinus Torvalds */ 57321da177e4SLinus Torvalds entry->ino = 1; 57331da177e4SLinus Torvalds 57341da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 57351da177e4SLinus Torvalds if (len-- > 0) { 57361da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 57371da177e4SLinus Torvalds if (len-- > 0) { 57381da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 57391da177e4SLinus Torvalds p += len; 57401da177e4SLinus Torvalds } 57411da177e4SLinus Torvalds } 57421da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 57431da177e4SLinus Torvalds if (len > 0) { 574497d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 574597d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 574697d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 574797d312d0SManoj Naik p++; 574897d312d0SManoj Naik len--; 574997d312d0SManoj Naik } 57501da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 57511da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 57521da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 57531da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 57541da177e4SLinus Torvalds p += len; 57551da177e4SLinus Torvalds } 57561da177e4SLinus Torvalds 57571da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 57581da177e4SLinus Torvalds return p; 57591da177e4SLinus Torvalds } 57601da177e4SLinus Torvalds 57611da177e4SLinus Torvalds /* 57621da177e4SLinus Torvalds * We need to translate between nfs status return values and 57631da177e4SLinus Torvalds * the local errno values which may not be the same. 57641da177e4SLinus Torvalds */ 57651da177e4SLinus Torvalds static struct { 57661da177e4SLinus Torvalds int stat; 57671da177e4SLinus Torvalds int errno; 57681da177e4SLinus Torvalds } nfs_errtbl[] = { 57691da177e4SLinus Torvalds { NFS4_OK, 0 }, 5770856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5771856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5772856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5773856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5774856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5775856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5776856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5777856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5778856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5779856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5780856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5781856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5782856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5783856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5784856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5785856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5786856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5787856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5788856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5789856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5790856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5791856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5792856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5793856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5794fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 5795856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5796856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5797856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5798856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5799856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5800856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 58011da177e4SLinus Torvalds * to be handled by a 58021da177e4SLinus Torvalds * middle-layer. 58031da177e4SLinus Torvalds */ 5804856dff3dSBenny Halevy { -1, -EIO } 58051da177e4SLinus Torvalds }; 58061da177e4SLinus Torvalds 58071da177e4SLinus Torvalds /* 58081da177e4SLinus Torvalds * Convert an NFS error code to a local one. 58091da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 58101da177e4SLinus Torvalds */ 58111da177e4SLinus Torvalds static int 58120a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 58131da177e4SLinus Torvalds { 58141da177e4SLinus Torvalds int i; 58151da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 58161da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 58171da177e4SLinus Torvalds return nfs_errtbl[i].errno; 58181da177e4SLinus Torvalds } 58191da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 58201da177e4SLinus Torvalds /* The server is looney tunes. */ 5821fdcb4577STrond Myklebust return -EREMOTEIO; 58221da177e4SLinus Torvalds } 58231da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 58241da177e4SLinus Torvalds * handle it. 58251da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 58261da177e4SLinus Torvalds * not conflict with native Linux error codes. 58271da177e4SLinus Torvalds */ 5828856dff3dSBenny Halevy return -stat; 58291da177e4SLinus Torvalds } 58301da177e4SLinus Torvalds 58311da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 58321da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 58331da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 58341da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 58351da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 58362bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 58372bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5838cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5839cc0175c1SChuck Lever .p_name = #proc, \ 58401da177e4SLinus Torvalds } 58411da177e4SLinus Torvalds 58421da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 58431da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 58441da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 58451da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 58461da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 58471da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 58481da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 58491da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 58501da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 58511da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 58521da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 58531da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 58541da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 58551da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 58561da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 58571da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 58581da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 58591da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 58601da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 58611da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 58621da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 58631da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 58641da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 58651da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 58661da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 58671da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 58681da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 58691da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 58701da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 58711da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 58721da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 58731da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5874029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 587523ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5876683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 587799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 587899fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5879fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 58800f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 5881fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 58822050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 588318019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 588499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 58851da177e4SLinus Torvalds }; 58861da177e4SLinus Torvalds 58871da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 58881da177e4SLinus Torvalds .number = 4, 5889e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 58901da177e4SLinus Torvalds .procs = nfs4_procedures 58911da177e4SLinus Torvalds }; 58921da177e4SLinus Torvalds 58931da177e4SLinus Torvalds /* 58941da177e4SLinus Torvalds * Local variables: 58951da177e4SLinus Torvalds * c-basic-offset: 8 58961da177e4SLinus Torvalds * End: 58971da177e4SLinus Torvalds */ 5898