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) 223d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 224d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 225d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 226d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 227d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2289104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2299104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2301da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2311da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 23294a6d753SChuck Lever 1 + \ 23396928206SJ. Bruce Fields nfs4_fattr_maxsz) 2341da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2351da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2369104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2379104a55dSTrond Myklebust encode_attrs_maxsz) 2382cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2392cebf828STrond Myklebust decode_change_info_maxsz + \ 2402cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2419104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2429104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2431da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2441da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2459104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2469104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2479104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2489104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2499104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2509104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 251e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 252e6889620STrond Myklebust (encode_getattr_maxsz) 253e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 254e6889620STrond Myklebust (0) 2559b7b9fccSAndy Adamson 2569b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 257fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 258fc931582SAndy Adamson 25999fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 26099fe60d0SBenny Halevy encode_verifier_maxsz + \ 26199fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 26299fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 26399fe60d0SBenny Halevy 1 /* flags */ + \ 26499fe60d0SBenny Halevy 1 /* spa_how */ + \ 26599fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 26699fe60d0SBenny Halevy 1 /* zero implemetation id array */) 26799fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 26899fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 26999fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 27099fe60d0SBenny Halevy 1 /* eir_flags */ + \ 27199fe60d0SBenny Halevy 1 /* spr_how */ + \ 27299fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 27399fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 27499fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 27599fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27699fe60d0SBenny Halevy /* eir_server_scope<> */ \ 27799fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27899fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 27999fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 280fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 281fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 282fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 283fc931582SAndy Adamson 1 /* ca_rdma_ird */) 284fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 285fc931582SAndy Adamson 2 /* csa_clientid */ + \ 286fc931582SAndy Adamson 1 /* csa_sequence */ + \ 287fc931582SAndy Adamson 1 /* csa_flags */ + \ 288fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 289fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 290fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 291fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 292fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 293fc931582SAndy Adamson 1 /* stamp */ + \ 294fc931582SAndy Adamson 1 /* machinename.len */ + \ 295fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 296fc931582SAndy Adamson 1 /* uid */ + \ 297fc931582SAndy Adamson 1 /* gid */ + \ 298fc931582SAndy Adamson 1 /* gids.len (0) */) 299fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 300fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 301fc931582SAndy Adamson 1 /* csr_sequence */ + \ 302fc931582SAndy Adamson 1 /* csr_flags */ + \ 303fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 304fc931582SAndy Adamson decode_channel_attrs_maxsz) 3050f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3060f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 307fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 308fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 309fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 310fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 31118019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 31218019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3139b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3149b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3159b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3169b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3179b7b9fccSAndy Adamson 3181da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3191da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3201da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3221da177e4SLinus Torvalds encode_putfh_maxsz + \ 3239104a55dSTrond Myklebust encode_read_maxsz) 3241da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3261da177e4SLinus Torvalds decode_putfh_maxsz + \ 3279104a55dSTrond Myklebust decode_read_maxsz) 3281da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3299b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3301da177e4SLinus Torvalds encode_putfh_maxsz + \ 3319104a55dSTrond Myklebust encode_readlink_maxsz) 3321da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3339b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3341da177e4SLinus Torvalds decode_putfh_maxsz + \ 3359104a55dSTrond Myklebust decode_readlink_maxsz) 3361da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3379b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3381da177e4SLinus Torvalds encode_putfh_maxsz + \ 3399104a55dSTrond Myklebust encode_readdir_maxsz) 3401da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3419b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3421da177e4SLinus Torvalds decode_putfh_maxsz + \ 3439104a55dSTrond Myklebust decode_readdir_maxsz) 3441da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3461da177e4SLinus Torvalds encode_putfh_maxsz + \ 3479104a55dSTrond Myklebust encode_write_maxsz + \ 3484f9838c7STrond Myklebust encode_getattr_maxsz) 3491da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3511da177e4SLinus Torvalds decode_putfh_maxsz + \ 3529104a55dSTrond Myklebust decode_write_maxsz + \ 3534f9838c7STrond Myklebust decode_getattr_maxsz) 3541da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3561da177e4SLinus Torvalds encode_putfh_maxsz + \ 3579104a55dSTrond Myklebust encode_commit_maxsz + \ 3584f9838c7STrond Myklebust encode_getattr_maxsz) 3591da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3609b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3611da177e4SLinus Torvalds decode_putfh_maxsz + \ 3629104a55dSTrond Myklebust decode_commit_maxsz + \ 3634f9838c7STrond Myklebust decode_getattr_maxsz) 3641da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3661da177e4SLinus Torvalds encode_putfh_maxsz + \ 3672cebf828STrond Myklebust encode_savefh_maxsz + \ 3682cebf828STrond Myklebust encode_open_maxsz + \ 3692cebf828STrond Myklebust encode_getfh_maxsz + \ 3701da177e4SLinus Torvalds encode_getattr_maxsz + \ 3712cebf828STrond Myklebust encode_restorefh_maxsz + \ 3722cebf828STrond Myklebust encode_getattr_maxsz) 3731da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 3749b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3751da177e4SLinus Torvalds decode_putfh_maxsz + \ 3762cebf828STrond Myklebust decode_savefh_maxsz + \ 3772cebf828STrond Myklebust decode_open_maxsz + \ 3782cebf828STrond Myklebust decode_getfh_maxsz + \ 3791da177e4SLinus Torvalds decode_getattr_maxsz + \ 3802cebf828STrond Myklebust decode_restorefh_maxsz + \ 3812cebf828STrond Myklebust decode_getattr_maxsz) 3821da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3831da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3841da177e4SLinus Torvalds encode_putfh_maxsz + \ 3859104a55dSTrond Myklebust encode_open_confirm_maxsz) 3869104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3879104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3881da177e4SLinus Torvalds decode_putfh_maxsz + \ 3899104a55dSTrond Myklebust decode_open_confirm_maxsz) 3901da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3919b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3921da177e4SLinus Torvalds encode_putfh_maxsz + \ 3932cebf828STrond Myklebust encode_open_maxsz + \ 3942cebf828STrond Myklebust encode_getattr_maxsz) 3951da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3969b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3971da177e4SLinus Torvalds decode_putfh_maxsz + \ 3982cebf828STrond Myklebust decode_open_maxsz + \ 3992cebf828STrond Myklebust decode_getattr_maxsz) 4001da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4011da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4029b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4031da177e4SLinus Torvalds encode_putfh_maxsz + \ 4049104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 405516a6af6STrond Myklebust encode_getattr_maxsz) 4061da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4071da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4091da177e4SLinus Torvalds decode_putfh_maxsz + \ 4109104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 411516a6af6STrond Myklebust decode_getattr_maxsz) 4121da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4141da177e4SLinus Torvalds encode_putfh_maxsz + \ 4159104a55dSTrond Myklebust encode_close_maxsz + \ 416516a6af6STrond Myklebust encode_getattr_maxsz) 4171da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4191da177e4SLinus Torvalds decode_putfh_maxsz + \ 4209104a55dSTrond Myklebust decode_close_maxsz + \ 421516a6af6STrond Myklebust decode_getattr_maxsz) 4221da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4241da177e4SLinus Torvalds encode_putfh_maxsz + \ 4259104a55dSTrond Myklebust encode_setattr_maxsz + \ 4261da177e4SLinus Torvalds encode_getattr_maxsz) 4271da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4289b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4291da177e4SLinus Torvalds decode_putfh_maxsz + \ 4309104a55dSTrond Myklebust decode_setattr_maxsz + \ 4319104a55dSTrond Myklebust decode_getattr_maxsz) 4321da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4341da177e4SLinus Torvalds encode_putfh_maxsz + \ 4351da177e4SLinus Torvalds encode_fsinfo_maxsz) 4361da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4381da177e4SLinus Torvalds decode_putfh_maxsz + \ 4391da177e4SLinus Torvalds decode_fsinfo_maxsz) 4401da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4411da177e4SLinus Torvalds encode_renew_maxsz) 4421da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4431da177e4SLinus Torvalds decode_renew_maxsz) 4441da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4451da177e4SLinus Torvalds encode_setclientid_maxsz) 4461da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4471da177e4SLinus Torvalds decode_setclientid_maxsz) 4481da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4491da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4501da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4511da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4521da177e4SLinus Torvalds encode_fsinfo_maxsz) 4531da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4541da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4551da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4561da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4571da177e4SLinus Torvalds decode_fsinfo_maxsz) 4581da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4599b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4601da177e4SLinus Torvalds encode_putfh_maxsz + \ 4619104a55dSTrond Myklebust encode_lock_maxsz) 4621da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4639b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4641da177e4SLinus Torvalds decode_putfh_maxsz + \ 4659104a55dSTrond Myklebust decode_lock_maxsz) 4661da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4679b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4681da177e4SLinus Torvalds encode_putfh_maxsz + \ 4699104a55dSTrond Myklebust encode_lockt_maxsz) 4709104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 4719b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4729104a55dSTrond Myklebust decode_putfh_maxsz + \ 4739104a55dSTrond Myklebust decode_lockt_maxsz) 4741da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 4759b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4761da177e4SLinus Torvalds encode_putfh_maxsz + \ 4779104a55dSTrond Myklebust encode_locku_maxsz) 4781da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 4799b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4801da177e4SLinus Torvalds decode_putfh_maxsz + \ 4819104a55dSTrond Myklebust decode_locku_maxsz) 482d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 483d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 484d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 485d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 486d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 487d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 4881da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 4899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4901da177e4SLinus Torvalds encode_putfh_maxsz + \ 49176b32999STrond Myklebust encode_access_maxsz + \ 49276b32999STrond Myklebust encode_getattr_maxsz) 4931da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 4949b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4951da177e4SLinus Torvalds decode_putfh_maxsz + \ 49676b32999STrond Myklebust decode_access_maxsz + \ 49776b32999STrond Myklebust decode_getattr_maxsz) 4981da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 4999b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5001da177e4SLinus Torvalds encode_putfh_maxsz + \ 5011da177e4SLinus Torvalds encode_getattr_maxsz) 5021da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5039b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5041da177e4SLinus Torvalds decode_putfh_maxsz + \ 5051da177e4SLinus Torvalds decode_getattr_maxsz) 5061da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5079b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5081da177e4SLinus Torvalds encode_putfh_maxsz + \ 5091da177e4SLinus Torvalds encode_lookup_maxsz + \ 5101da177e4SLinus Torvalds encode_getattr_maxsz + \ 5111da177e4SLinus Torvalds encode_getfh_maxsz) 5121da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5141da177e4SLinus Torvalds decode_putfh_maxsz + \ 515e6889620STrond Myklebust decode_lookup_maxsz + \ 5161da177e4SLinus Torvalds decode_getattr_maxsz + \ 5171da177e4SLinus Torvalds decode_getfh_maxsz) 5181da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5199b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5201da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5211da177e4SLinus Torvalds encode_getattr_maxsz + \ 5221da177e4SLinus Torvalds encode_getfh_maxsz) 5231da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5249b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5251da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5261da177e4SLinus Torvalds decode_getattr_maxsz + \ 5271da177e4SLinus Torvalds decode_getfh_maxsz) 5281da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5299b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5301da177e4SLinus Torvalds encode_putfh_maxsz + \ 53116e42959STrond Myklebust encode_remove_maxsz + \ 53216e42959STrond Myklebust encode_getattr_maxsz) 5331da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5351da177e4SLinus Torvalds decode_putfh_maxsz + \ 5366ce18391SBenny Halevy decode_remove_maxsz + \ 53716e42959STrond Myklebust decode_getattr_maxsz) 5381da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5399b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5401da177e4SLinus Torvalds encode_putfh_maxsz + \ 5411da177e4SLinus Torvalds encode_savefh_maxsz + \ 5421da177e4SLinus Torvalds encode_putfh_maxsz + \ 5436caf2c82STrond Myklebust encode_rename_maxsz + \ 5446caf2c82STrond Myklebust encode_getattr_maxsz + \ 5456caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5466caf2c82STrond Myklebust encode_getattr_maxsz) 5471da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5491da177e4SLinus Torvalds decode_putfh_maxsz + \ 5501da177e4SLinus Torvalds decode_savefh_maxsz + \ 5511da177e4SLinus Torvalds decode_putfh_maxsz + \ 5526caf2c82STrond Myklebust decode_rename_maxsz + \ 5536caf2c82STrond Myklebust decode_getattr_maxsz + \ 5546caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5556caf2c82STrond Myklebust decode_getattr_maxsz) 5561da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5581da177e4SLinus Torvalds encode_putfh_maxsz + \ 5591da177e4SLinus Torvalds encode_savefh_maxsz + \ 5601da177e4SLinus Torvalds encode_putfh_maxsz + \ 56191ba2eeeSTrond Myklebust encode_link_maxsz + \ 56291ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 56391ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 56491ba2eeeSTrond Myklebust decode_getattr_maxsz) 5651da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5669b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5671da177e4SLinus Torvalds decode_putfh_maxsz + \ 5681da177e4SLinus Torvalds decode_savefh_maxsz + \ 5691da177e4SLinus Torvalds decode_putfh_maxsz + \ 57091ba2eeeSTrond Myklebust decode_link_maxsz + \ 57191ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 57291ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 57391ba2eeeSTrond Myklebust decode_getattr_maxsz) 5741da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 5759b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5761da177e4SLinus Torvalds encode_putfh_maxsz + \ 5771da177e4SLinus Torvalds encode_symlink_maxsz + \ 5781da177e4SLinus Torvalds encode_getattr_maxsz + \ 5791da177e4SLinus Torvalds encode_getfh_maxsz) 5801da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 5819b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5821da177e4SLinus Torvalds decode_putfh_maxsz + \ 5831da177e4SLinus Torvalds decode_symlink_maxsz + \ 5841da177e4SLinus Torvalds decode_getattr_maxsz + \ 5851da177e4SLinus Torvalds decode_getfh_maxsz) 5861da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 5879b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5881da177e4SLinus Torvalds encode_putfh_maxsz + \ 58956ae19f3STrond Myklebust encode_savefh_maxsz + \ 5901da177e4SLinus Torvalds encode_create_maxsz + \ 59156ae19f3STrond Myklebust encode_getfh_maxsz + \ 5921da177e4SLinus Torvalds encode_getattr_maxsz + \ 59356ae19f3STrond Myklebust encode_restorefh_maxsz + \ 59456ae19f3STrond Myklebust encode_getattr_maxsz) 5951da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 5969b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5971da177e4SLinus Torvalds decode_putfh_maxsz + \ 59856ae19f3STrond Myklebust decode_savefh_maxsz + \ 5991da177e4SLinus Torvalds decode_create_maxsz + \ 60056ae19f3STrond Myklebust decode_getfh_maxsz + \ 6011da177e4SLinus Torvalds decode_getattr_maxsz + \ 60256ae19f3STrond Myklebust decode_restorefh_maxsz + \ 60356ae19f3STrond Myklebust decode_getattr_maxsz) 6041da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6061da177e4SLinus Torvalds encode_putfh_maxsz + \ 6071da177e4SLinus Torvalds encode_getattr_maxsz) 6081da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6099b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6101da177e4SLinus Torvalds decode_putfh_maxsz + \ 6111da177e4SLinus Torvalds decode_getattr_maxsz) 6121da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6141da177e4SLinus Torvalds encode_putfh_maxsz + \ 6159104a55dSTrond Myklebust encode_statfs_maxsz) 6161da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6179b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6181da177e4SLinus Torvalds decode_putfh_maxsz + \ 6199104a55dSTrond Myklebust decode_statfs_maxsz) 6201da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 622ab91f264STrond Myklebust encode_putfh_maxsz + \ 6231da177e4SLinus Torvalds encode_getattr_maxsz) 6241da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 626ab91f264STrond Myklebust decode_putfh_maxsz + \ 6271da177e4SLinus Torvalds decode_getattr_maxsz) 6281da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6299b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6301da177e4SLinus Torvalds encode_putfh_maxsz + \ 631fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 632fa178f29STrond Myklebust encode_getattr_maxsz) 6331da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 635fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 636fa178f29STrond Myklebust decode_getattr_maxsz) 637029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6389b7b9fccSAndy Adamson encode_sequence_maxsz + \ 639029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6409104a55dSTrond Myklebust encode_getacl_maxsz) 641029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6429b7b9fccSAndy Adamson decode_sequence_maxsz + \ 643029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6449104a55dSTrond Myklebust decode_getacl_maxsz) 64523ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6469b7b9fccSAndy Adamson encode_sequence_maxsz + \ 64723ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6489104a55dSTrond Myklebust encode_setacl_maxsz) 64923ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 65123ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6529104a55dSTrond Myklebust decode_setacl_maxsz) 653683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 654683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 656683b57b4STrond Myklebust encode_putfh_maxsz + \ 657e6889620STrond Myklebust encode_lookup_maxsz + \ 658e6889620STrond Myklebust encode_fs_locations_maxsz) 659683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 660683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6619b7b9fccSAndy Adamson decode_sequence_maxsz + \ 662683b57b4STrond Myklebust decode_putfh_maxsz + \ 663e6889620STrond Myklebust decode_lookup_maxsz + \ 664e6889620STrond Myklebust decode_fs_locations_maxsz) 66599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 66699fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 66799fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 66899fe60d0SBenny Halevy encode_exchange_id_maxsz) 66999fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 67099fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 67199fe60d0SBenny Halevy decode_exchange_id_maxsz) 672fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 673fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 674fc931582SAndy Adamson encode_create_session_maxsz) 675fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 676fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 677fc931582SAndy Adamson decode_create_session_maxsz) 6780f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 6790f3e66c6SAndy Adamson encode_destroy_session_maxsz) 6800f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 6810f3e66c6SAndy Adamson decode_destroy_session_maxsz) 682fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 683fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 684fc01cea9SAndy Adamson encode_sequence_maxsz) 685fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 686fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 687fc01cea9SAndy Adamson decode_sequence_maxsz) 6882050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 6892050f0ccSAndy Adamson encode_sequence_maxsz + \ 6902050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 6912050f0ccSAndy Adamson encode_fsinfo_maxsz) 6922050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 6932050f0ccSAndy Adamson decode_sequence_maxsz + \ 6942050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 6952050f0ccSAndy Adamson decode_fsinfo_maxsz) 69618019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 69718019753SRicardo Labiaga encode_sequence_maxsz + \ 69818019753SRicardo Labiaga encode_reclaim_complete_maxsz) 69918019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 70018019753SRicardo Labiaga decode_sequence_maxsz + \ 70118019753SRicardo Labiaga decode_reclaim_complete_maxsz) 7022449ea2eSAlexandros Batsakis 7032449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 7042449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 7052449ea2eSAlexandros Batsakis encode_sequence_maxsz + 7062449ea2eSAlexandros Batsakis encode_putfh_maxsz + 7072449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 7082449ea2eSAlexandros Batsakis XDR_UNIT); 7092449ea2eSAlexandros Batsakis 7102449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 7112449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 7122449ea2eSAlexandros Batsakis decode_sequence_maxsz + 7132449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 7142449ea2eSAlexandros Batsakis XDR_UNIT); 71599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 7161da177e4SLinus Torvalds 717bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 718bca79478STrond Myklebust [NF4BAD] = 0, 719bca79478STrond Myklebust [NF4REG] = S_IFREG, 720bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 721bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 722bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 723bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 724bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 725bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 726bca79478STrond Myklebust [NF4ATTRDIR] = 0, 727bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 7281da177e4SLinus Torvalds }; 7291da177e4SLinus Torvalds 7301da177e4SLinus Torvalds struct compound_hdr { 7311da177e4SLinus Torvalds int32_t status; 7321da177e4SLinus Torvalds uint32_t nops; 733d017931cSAndy Adamson __be32 * nops_p; 7341da177e4SLinus Torvalds uint32_t taglen; 7351da177e4SLinus Torvalds char * tag; 7360c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 73766cc0429SBenny Halevy u32 minorversion; 7381da177e4SLinus Torvalds }; 7391da177e4SLinus Torvalds 74013c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 74113c65ce9SBenny Halevy { 74213c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 74313c65ce9SBenny Halevy BUG_ON(!p); 74413c65ce9SBenny Halevy return p; 74513c65ce9SBenny Halevy } 7461da177e4SLinus Torvalds 7471da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7481da177e4SLinus Torvalds { 7498687b63aSAl Viro __be32 *p; 7501da177e4SLinus Torvalds 7511da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7521da177e4SLinus Torvalds BUG_ON(p == NULL); 7531da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7541da177e4SLinus Torvalds } 7551da177e4SLinus Torvalds 7560c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7570c4e8c18SBenny Halevy struct rpc_rqst *req, 7580c4e8c18SBenny Halevy struct compound_hdr *hdr) 7591da177e4SLinus Torvalds { 7608687b63aSAl Viro __be32 *p; 761a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 7620c4e8c18SBenny Halevy 7630c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7640c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7650c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7660c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7671da177e4SLinus Torvalds 7681da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7691da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 770811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 771811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 772e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 773d017931cSAndy Adamson hdr->nops_p = p; 77434558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 775d017931cSAndy Adamson } 776d017931cSAndy Adamson 777d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 778d017931cSAndy Adamson { 779fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 780d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 7811da177e4SLinus Torvalds } 7821da177e4SLinus Torvalds 7831da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 7841da177e4SLinus Torvalds { 7858687b63aSAl Viro __be32 *p; 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 7881da177e4SLinus Torvalds BUG_ON(p == NULL); 7891da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 7901da177e4SLinus Torvalds } 7911da177e4SLinus Torvalds 792cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 7931da177e4SLinus Torvalds { 7941da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 7951da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 7961da177e4SLinus Torvalds int owner_namelen = 0; 7971da177e4SLinus Torvalds int owner_grouplen = 0; 7988687b63aSAl Viro __be32 *p; 7998687b63aSAl Viro __be32 *q; 8001da177e4SLinus Torvalds int len; 8011da177e4SLinus Torvalds uint32_t bmval0 = 0; 8021da177e4SLinus Torvalds uint32_t bmval1 = 0; 8031da177e4SLinus Torvalds 8041da177e4SLinus Torvalds /* 8051da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 8061da177e4SLinus Torvalds * In the worst-case, this would be 8071da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 8081da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 80923ec6965SJ. Bruce Fields * such as owner/group. 8101da177e4SLinus Torvalds */ 8111da177e4SLinus Torvalds len = 16; 8121da177e4SLinus Torvalds 8131da177e4SLinus Torvalds /* Sigh */ 8141da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 8151da177e4SLinus Torvalds len += 8; 8161da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 8171da177e4SLinus Torvalds len += 4; 8181da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8197539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 8201da177e4SLinus Torvalds if (owner_namelen < 0) { 821fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 8221da177e4SLinus Torvalds iap->ia_uid); 8231da177e4SLinus Torvalds /* XXX */ 8241da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 8251da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8261da177e4SLinus Torvalds /* goto out; */ 8271da177e4SLinus Torvalds } 8281da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8291da177e4SLinus Torvalds } 8301da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8317539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 8321da177e4SLinus Torvalds if (owner_grouplen < 0) { 833fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8341da177e4SLinus Torvalds iap->ia_gid); 8351da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8361da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8371da177e4SLinus Torvalds /* goto out; */ 8381da177e4SLinus Torvalds } 8391da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8401da177e4SLinus Torvalds } 8411da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8421da177e4SLinus Torvalds len += 16; 8431da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8441da177e4SLinus Torvalds len += 4; 8451da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8461da177e4SLinus Torvalds len += 16; 8471da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8481da177e4SLinus Torvalds len += 4; 84913c65ce9SBenny Halevy p = reserve_space(xdr, len); 8501da177e4SLinus Torvalds 8511da177e4SLinus Torvalds /* 8521da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8531da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8541da177e4SLinus Torvalds */ 855e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 8561da177e4SLinus Torvalds q = p; 8571da177e4SLinus Torvalds p += 3; 8581da177e4SLinus Torvalds 8591da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8601da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 861b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 8621da177e4SLinus Torvalds } 8631da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8641da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 8661da177e4SLinus Torvalds } 8671da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8681da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 869811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 8701da177e4SLinus Torvalds } 8711da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8721da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 873811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 8741da177e4SLinus Torvalds } 8751da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 8761da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 877e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 878e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 879d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 880d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 8811da177e4SLinus Torvalds } 8821da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 8831da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 884e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8851da177e4SLinus Torvalds } 8861da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 8871da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 888e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 889e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 890e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 891e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8921da177e4SLinus Torvalds } 8931da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 8941da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 895e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8961da177e4SLinus Torvalds } 8971da177e4SLinus Torvalds 8981da177e4SLinus Torvalds /* 8991da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 9001da177e4SLinus Torvalds */ 9011da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 902fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 9031da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 9041da177e4SLinus Torvalds BUG(); 9051da177e4SLinus Torvalds } 9061da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 9071da177e4SLinus Torvalds *q++ = htonl(bmval0); 9081da177e4SLinus Torvalds *q++ = htonl(bmval1); 90934558513SBenny Halevy *q = htonl(len); 9101da177e4SLinus Torvalds 9111da177e4SLinus Torvalds /* out: */ 9121da177e4SLinus Torvalds } 9131da177e4SLinus Torvalds 914cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 9151da177e4SLinus Torvalds { 9168687b63aSAl Viro __be32 *p; 9171da177e4SLinus Torvalds 91813c65ce9SBenny Halevy p = reserve_space(xdr, 8); 919e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 92034558513SBenny Halevy *p = cpu_to_be32(access); 921d017931cSAndy Adamson hdr->nops++; 922dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 9231da177e4SLinus Torvalds } 9241da177e4SLinus Torvalds 925cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9261da177e4SLinus Torvalds { 9278687b63aSAl Viro __be32 *p; 9281da177e4SLinus Torvalds 92913c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 930e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 931e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 93234558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 933d017931cSAndy Adamson hdr->nops++; 934dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9351da177e4SLinus Torvalds } 9361da177e4SLinus Torvalds 937cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9381da177e4SLinus Torvalds { 9398687b63aSAl Viro __be32 *p; 9401da177e4SLinus Torvalds 94113c65ce9SBenny Halevy p = reserve_space(xdr, 16); 942e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 943b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 94434558513SBenny Halevy *p = cpu_to_be32(args->count); 945d017931cSAndy Adamson hdr->nops++; 946dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9471da177e4SLinus Torvalds } 9481da177e4SLinus Torvalds 949cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9501da177e4SLinus Torvalds { 9518687b63aSAl Viro __be32 *p; 9521da177e4SLinus Torvalds 95313c65ce9SBenny Halevy p = reserve_space(xdr, 8); 954e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 95534558513SBenny Halevy *p = cpu_to_be32(create->ftype); 9561da177e4SLinus Torvalds 9571da177e4SLinus Torvalds switch (create->ftype) { 9581da177e4SLinus Torvalds case NF4LNK: 95913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 96034558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 96194a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9621da177e4SLinus Torvalds break; 9631da177e4SLinus Torvalds 9641da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 96513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 966e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 96734558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 9681da177e4SLinus Torvalds break; 9691da177e4SLinus Torvalds 9701da177e4SLinus Torvalds default: 9711da177e4SLinus Torvalds break; 9721da177e4SLinus Torvalds } 9731da177e4SLinus Torvalds 974811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 975d017931cSAndy Adamson hdr->nops++; 976dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 9771da177e4SLinus Torvalds 978cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 9791da177e4SLinus Torvalds } 9801da177e4SLinus Torvalds 981cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 9821da177e4SLinus Torvalds { 9838687b63aSAl Viro __be32 *p; 9841da177e4SLinus Torvalds 98513c65ce9SBenny Halevy p = reserve_space(xdr, 12); 986e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 987e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 98834558513SBenny Halevy *p = cpu_to_be32(bitmap); 989d017931cSAndy Adamson hdr->nops++; 990dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9911da177e4SLinus Torvalds } 9921da177e4SLinus Torvalds 993cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 9941da177e4SLinus Torvalds { 9958687b63aSAl Viro __be32 *p; 9961da177e4SLinus Torvalds 99713c65ce9SBenny Halevy p = reserve_space(xdr, 16); 998e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 999e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1000e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 100134558513SBenny Halevy *p = cpu_to_be32(bm1); 1002d017931cSAndy Adamson hdr->nops++; 1003dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 10041da177e4SLinus Torvalds } 10051da177e4SLinus Torvalds 1006cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10071da177e4SLinus Torvalds { 1008cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1009d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 10101da177e4SLinus Torvalds } 10111da177e4SLinus Torvalds 1012cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10131da177e4SLinus Torvalds { 1014cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 1015d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 10161da177e4SLinus Torvalds } 10171da177e4SLinus Torvalds 1018cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1019830b8e33SManoj Naik { 1020cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1021cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1022830b8e33SManoj Naik } 1023830b8e33SManoj Naik 1024cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10251da177e4SLinus Torvalds { 10268687b63aSAl Viro __be32 *p; 10271da177e4SLinus Torvalds 102813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 102934558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1030d017931cSAndy Adamson hdr->nops++; 1031dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10321da177e4SLinus Torvalds } 10331da177e4SLinus Torvalds 1034cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10351da177e4SLinus Torvalds { 10368687b63aSAl Viro __be32 *p; 10371da177e4SLinus Torvalds 103813c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1039e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1040811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1041d017931cSAndy Adamson hdr->nops++; 1042dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10431da177e4SLinus Torvalds } 10441da177e4SLinus Torvalds 1045911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1046911d1aafSTrond Myklebust { 1047911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1048911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1049911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1050911d1aafSTrond Myklebust } 1051911d1aafSTrond Myklebust 1052911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1053911d1aafSTrond Myklebust { 1054911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1055911d1aafSTrond Myklebust return ~(uint64_t)0; 1056911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1057911d1aafSTrond Myklebust } 1058911d1aafSTrond Myklebust 1059daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1060daccbdedSTrond Myklebust { 1061daccbdedSTrond Myklebust __be32 *p; 1062daccbdedSTrond Myklebust 1063daccbdedSTrond Myklebust p = reserve_space(xdr, 28); 1064daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1065daccbdedSTrond Myklebust *p++ = cpu_to_be32(16); 1066daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1067daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1068daccbdedSTrond Myklebust } 1069daccbdedSTrond Myklebust 10701da177e4SLinus Torvalds /* 10711da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 10721da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 10731da177e4SLinus Torvalds */ 1074cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 10751da177e4SLinus Torvalds { 10768687b63aSAl Viro __be32 *p; 10771da177e4SLinus Torvalds 107813c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1079e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1080e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1081e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1082b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1083b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 108434558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1085911d1aafSTrond Myklebust if (args->new_lock_owner){ 1086daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1087e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 108893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1089e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1090daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 10911da177e4SLinus Torvalds } 10921da177e4SLinus Torvalds else { 109313c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 109493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 109534558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 10961da177e4SLinus Torvalds } 1097d017931cSAndy Adamson hdr->nops++; 1098dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 10991da177e4SLinus Torvalds } 11001da177e4SLinus Torvalds 1101cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 11021da177e4SLinus Torvalds { 11038687b63aSAl Viro __be32 *p; 11041da177e4SLinus Torvalds 1105daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1106e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1107e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1108b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1109b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1110daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1111d017931cSAndy Adamson hdr->nops++; 1112dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 11131da177e4SLinus Torvalds } 11141da177e4SLinus Torvalds 1115cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 11161da177e4SLinus Torvalds { 11178687b63aSAl Viro __be32 *p; 11181da177e4SLinus Torvalds 111913c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1120e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1121e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1122e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 112393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1124b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 112534558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1126d017931cSAndy Adamson hdr->nops++; 1127dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11281da177e4SLinus Torvalds } 11291da177e4SLinus Torvalds 1130d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1131d3c7b7ccSTrond Myklebust { 1132d3c7b7ccSTrond Myklebust __be32 *p; 1133d3c7b7ccSTrond Myklebust 1134d3c7b7ccSTrond Myklebust p = reserve_space(xdr, 4); 1135d3c7b7ccSTrond Myklebust *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); 1136d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1137d3c7b7ccSTrond Myklebust hdr->nops++; 1138d3c7b7ccSTrond Myklebust hdr->replen += decode_release_lockowner_maxsz; 1139d3c7b7ccSTrond Myklebust } 1140d3c7b7ccSTrond Myklebust 1141cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11421da177e4SLinus Torvalds { 11431da177e4SLinus Torvalds int len = name->len; 11448687b63aSAl Viro __be32 *p; 11451da177e4SLinus Torvalds 114613c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1147e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1148811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1149d017931cSAndy Adamson hdr->nops++; 1150dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11511da177e4SLinus Torvalds } 11521da177e4SLinus Torvalds 1153dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11541da177e4SLinus Torvalds { 11558687b63aSAl Viro __be32 *p; 11561da177e4SLinus Torvalds 115713c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1158dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11591da177e4SLinus Torvalds case FMODE_READ: 1160e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11611da177e4SLinus Torvalds break; 11621da177e4SLinus Torvalds case FMODE_WRITE: 1163e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11641da177e4SLinus Torvalds break; 11651da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1166e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11671da177e4SLinus Torvalds break; 11681da177e4SLinus Torvalds default: 1169e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11701da177e4SLinus Torvalds } 117134558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 11721da177e4SLinus Torvalds } 11731da177e4SLinus Torvalds 11741da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11751da177e4SLinus Torvalds { 11768687b63aSAl Viro __be32 *p; 11771da177e4SLinus Torvalds /* 11781da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 11791da177e4SLinus Torvalds * owner 4 = 32 11801da177e4SLinus Torvalds */ 118113c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1182e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 118334558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1184dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 118513c65ce9SBenny Halevy p = reserve_space(xdr, 28); 1186b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1187e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 118893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 118934558513SBenny Halevy xdr_encode_hyper(p, arg->id); 11901da177e4SLinus Torvalds } 11911da177e4SLinus Torvalds 11921da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11931da177e4SLinus Torvalds { 11948687b63aSAl Viro __be32 *p; 11954882ef72SAlexandros Batsakis struct nfs_client *clp; 11961da177e4SLinus Torvalds 119713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 11981da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 11991da177e4SLinus Torvalds case 0: 120034558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 12011da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 12021da177e4SLinus Torvalds break; 12031da177e4SLinus Torvalds default: 12044882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1205a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 12064882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 12074882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 12084882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 12094882ef72SAlexandros Batsakis } else { 12104882ef72SAlexandros Batsakis struct iattr dummy; 12114882ef72SAlexandros Batsakis 12124882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 12134882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 12144882ef72SAlexandros Batsakis dummy.ia_valid = 0; 12154882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 12164882ef72SAlexandros Batsakis } 12174882ef72SAlexandros Batsakis } else { 121834558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 12191da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 12201da177e4SLinus Torvalds } 12211da177e4SLinus Torvalds } 12224882ef72SAlexandros Batsakis } 12231da177e4SLinus Torvalds 12241da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12251da177e4SLinus Torvalds { 12268687b63aSAl Viro __be32 *p; 12271da177e4SLinus Torvalds 122813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12291da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 12301da177e4SLinus Torvalds case 0: 123134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 12321da177e4SLinus Torvalds break; 12331da177e4SLinus Torvalds default: 12341da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 123534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 12361da177e4SLinus Torvalds encode_createmode(xdr, arg); 12371da177e4SLinus Torvalds } 12381da177e4SLinus Torvalds } 12391da177e4SLinus Torvalds 1240bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 12411da177e4SLinus Torvalds { 12428687b63aSAl Viro __be32 *p; 12431da177e4SLinus Torvalds 124413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12451da177e4SLinus Torvalds switch (delegation_type) { 12461da177e4SLinus Torvalds case 0: 124734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 12481da177e4SLinus Torvalds break; 12491da177e4SLinus Torvalds case FMODE_READ: 125034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 12511da177e4SLinus Torvalds break; 12521da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 125334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 12541da177e4SLinus Torvalds break; 12551da177e4SLinus Torvalds default: 12561da177e4SLinus Torvalds BUG(); 12571da177e4SLinus Torvalds } 12581da177e4SLinus Torvalds } 12591da177e4SLinus Torvalds 12601da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12611da177e4SLinus Torvalds { 12628687b63aSAl Viro __be32 *p; 12631da177e4SLinus Torvalds 126413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 126534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 12661da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12671da177e4SLinus Torvalds } 12681da177e4SLinus Torvalds 1269bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12701da177e4SLinus Torvalds { 12718687b63aSAl Viro __be32 *p; 12721da177e4SLinus Torvalds 127313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 127434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 12751da177e4SLinus Torvalds encode_delegation_type(xdr, type); 12761da177e4SLinus Torvalds } 12771da177e4SLinus Torvalds 12781da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 12791da177e4SLinus Torvalds { 12808687b63aSAl Viro __be32 *p; 12811da177e4SLinus Torvalds 128213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1283e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 128434558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 12851da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12861da177e4SLinus Torvalds } 12871da177e4SLinus Torvalds 1288cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 12891da177e4SLinus Torvalds { 12901da177e4SLinus Torvalds encode_openhdr(xdr, arg); 12911da177e4SLinus Torvalds encode_opentype(xdr, arg); 12921da177e4SLinus Torvalds switch (arg->claim) { 12931da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 12941da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 12951da177e4SLinus Torvalds break; 12961da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 12971da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 12981da177e4SLinus Torvalds break; 12991da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 13001da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 13011da177e4SLinus Torvalds break; 13021da177e4SLinus Torvalds default: 13031da177e4SLinus Torvalds BUG(); 13041da177e4SLinus Torvalds } 1305d017931cSAndy Adamson hdr->nops++; 1306dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 13071da177e4SLinus Torvalds } 13081da177e4SLinus Torvalds 1309cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 13101da177e4SLinus Torvalds { 13118687b63aSAl Viro __be32 *p; 13121da177e4SLinus Torvalds 131313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1314e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 131593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 131634558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1317d017931cSAndy Adamson hdr->nops++; 1318dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 13191da177e4SLinus Torvalds } 13201da177e4SLinus Torvalds 1321cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 13221da177e4SLinus Torvalds { 13238687b63aSAl Viro __be32 *p; 13241da177e4SLinus Torvalds 132513c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1326e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 132793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 132834558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1329dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1330d017931cSAndy Adamson hdr->nops++; 1331dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 13321da177e4SLinus Torvalds } 13331da177e4SLinus Torvalds 1334cf8cdbe5SAndy Adamson static void 1335d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 13361da177e4SLinus Torvalds { 13371da177e4SLinus Torvalds int len = fh->size; 13388687b63aSAl Viro __be32 *p; 13391da177e4SLinus Torvalds 134013c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1341e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1342811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1343d017931cSAndy Adamson hdr->nops++; 1344dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 13451da177e4SLinus Torvalds } 13461da177e4SLinus Torvalds 1347cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 13481da177e4SLinus Torvalds { 13498687b63aSAl Viro __be32 *p; 13501da177e4SLinus Torvalds 135113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 135234558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1353d017931cSAndy Adamson hdr->nops++; 1354dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13551da177e4SLinus Torvalds } 13561da177e4SLinus Torvalds 1357f11ac8dbSTrond Myklebust static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx) 13581da177e4SLinus Torvalds { 13591da177e4SLinus Torvalds nfs4_stateid stateid; 13608687b63aSAl Viro __be32 *p; 13611da177e4SLinus Torvalds 136213c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 13631da177e4SLinus Torvalds if (ctx->state != NULL) { 136477041ed9STrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); 136534558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 13661da177e4SLinus Torvalds } else 136734558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 13681da177e4SLinus Torvalds } 13691da177e4SLinus Torvalds 1370cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13711da177e4SLinus Torvalds { 13728687b63aSAl Viro __be32 *p; 13731da177e4SLinus Torvalds 137413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 137534558513SBenny Halevy *p = cpu_to_be32(OP_READ); 13761da177e4SLinus Torvalds 1377f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 13781da177e4SLinus Torvalds 137913c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1380b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 138134558513SBenny Halevy *p = cpu_to_be32(args->count); 1382d017931cSAndy Adamson hdr->nops++; 1383dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 13841da177e4SLinus Torvalds } 13851da177e4SLinus Torvalds 1386cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 13871da177e4SLinus Torvalds { 138897d312d0SManoj Naik uint32_t attrs[2] = { 138997d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 139097d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 139197d312d0SManoj Naik }; 13928687b63aSAl Viro __be32 *p; 13931da177e4SLinus Torvalds 139413c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 1395e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READDIR); 1396b95be5a9SBenny Halevy p = xdr_encode_hyper(p, readdir->cookie); 139793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 1398e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ 1399e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count); 1400e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 140197d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 140297d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 140397d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 140497d312d0SManoj Naik else 140597d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1406e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 140734558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1408d017931cSAndy Adamson hdr->nops++; 1409dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 141044109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 141144109241SFred Isaman __func__, 1412eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1413eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1414eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1415eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1416eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 14171da177e4SLinus Torvalds } 14181da177e4SLinus Torvalds 1419cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 14201da177e4SLinus Torvalds { 14218687b63aSAl Viro __be32 *p; 14221da177e4SLinus Torvalds 142313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 142434558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1425d017931cSAndy Adamson hdr->nops++; 1426dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 14271da177e4SLinus Torvalds } 14281da177e4SLinus Torvalds 1429cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 14301da177e4SLinus Torvalds { 14318687b63aSAl Viro __be32 *p; 14321da177e4SLinus Torvalds 143313c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1434e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1435811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1436d017931cSAndy Adamson hdr->nops++; 1437dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 14381da177e4SLinus Torvalds } 14391da177e4SLinus Torvalds 1440cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 14411da177e4SLinus Torvalds { 14428687b63aSAl Viro __be32 *p; 14431da177e4SLinus Torvalds 1444811652bdSBenny Halevy p = reserve_space(xdr, 4); 1445811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1446811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1447811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1448d017931cSAndy Adamson hdr->nops++; 1449dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14501da177e4SLinus Torvalds } 14511da177e4SLinus Torvalds 1452cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14531da177e4SLinus Torvalds { 14548687b63aSAl Viro __be32 *p; 14551da177e4SLinus Torvalds 145613c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1457e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 145834558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1459d017931cSAndy Adamson hdr->nops++; 1460dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 14611da177e4SLinus Torvalds } 14621da177e4SLinus Torvalds 1463cf8cdbe5SAndy Adamson static void 1464d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 146556ae19f3STrond Myklebust { 14668687b63aSAl Viro __be32 *p; 146756ae19f3STrond Myklebust 146813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146934558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1470d017931cSAndy Adamson hdr->nops++; 1471dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 147256ae19f3STrond Myklebust } 147356ae19f3STrond Myklebust 147456ae19f3STrond Myklebust static int 1475d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 147623ec6965SJ. Bruce Fields { 14778687b63aSAl Viro __be32 *p; 147823ec6965SJ. Bruce Fields 147913c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1480e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 148134558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 148213c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1483e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 148434558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 148523ec6965SJ. Bruce Fields if (arg->acl_len % 4) 148623ec6965SJ. Bruce Fields return -EINVAL; 148713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 148834558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 148923ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1490d017931cSAndy Adamson hdr->nops++; 1491dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 149223ec6965SJ. Bruce Fields return 0; 149323ec6965SJ. Bruce Fields } 149423ec6965SJ. Bruce Fields 1495cf8cdbe5SAndy Adamson static void 1496d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14971da177e4SLinus Torvalds { 14988687b63aSAl Viro __be32 *p; 14991da177e4SLinus Torvalds 150013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 150134558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1502d017931cSAndy Adamson hdr->nops++; 1503dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 15041da177e4SLinus Torvalds } 15051da177e4SLinus Torvalds 1506cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 15071da177e4SLinus Torvalds { 15088687b63aSAl Viro __be32 *p; 15091da177e4SLinus Torvalds 151013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1511e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 151234558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1513d017931cSAndy Adamson hdr->nops++; 1514dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1515cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 15161da177e4SLinus Torvalds } 15171da177e4SLinus Torvalds 1518cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 15191da177e4SLinus Torvalds { 15208687b63aSAl Viro __be32 *p; 15211da177e4SLinus Torvalds 152213c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1523e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 152434558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 15251da177e4SLinus Torvalds 15261da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 152713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 152834558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 15291da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 15301da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 153113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 153234558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1533d017931cSAndy Adamson hdr->nops++; 1534dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 15351da177e4SLinus Torvalds } 15361da177e4SLinus Torvalds 1537bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 15381da177e4SLinus Torvalds { 15398687b63aSAl Viro __be32 *p; 15401da177e4SLinus Torvalds 154113c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1542e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1543bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1544bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1545d017931cSAndy Adamson hdr->nops++; 1546dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15471da177e4SLinus Torvalds } 15481da177e4SLinus Torvalds 1549cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15501da177e4SLinus Torvalds { 15518687b63aSAl Viro __be32 *p; 15521da177e4SLinus Torvalds 155313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 155434558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 15551da177e4SLinus Torvalds 1556f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 15571da177e4SLinus Torvalds 155813c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1559b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1560e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 156134558513SBenny Halevy *p = cpu_to_be32(args->count); 15621da177e4SLinus Torvalds 15631da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1564d017931cSAndy Adamson hdr->nops++; 1565dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 15661da177e4SLinus Torvalds } 15671da177e4SLinus Torvalds 1568cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15691da177e4SLinus Torvalds { 15708687b63aSAl Viro __be32 *p; 15711da177e4SLinus Torvalds 157213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 15731da177e4SLinus Torvalds 1574e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 157534558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1576d017931cSAndy Adamson hdr->nops++; 1577dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15781da177e4SLinus Torvalds } 15799b7b9fccSAndy Adamson 158099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15819b7b9fccSAndy Adamson /* NFSv4.1 operations */ 158299fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 158399fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 158499fe60d0SBenny Halevy struct compound_hdr *hdr) 158599fe60d0SBenny Halevy { 158699fe60d0SBenny Halevy __be32 *p; 158799fe60d0SBenny Halevy 158813c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1589e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 159034558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 159199fe60d0SBenny Halevy 159299fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 159399fe60d0SBenny Halevy 159413c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1595e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1596e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 159734558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 159899fe60d0SBenny Halevy hdr->nops++; 159999fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 160099fe60d0SBenny Halevy } 1601fc931582SAndy Adamson 1602fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1603fc931582SAndy Adamson struct nfs41_create_session_args *args, 1604fc931582SAndy Adamson struct compound_hdr *hdr) 1605fc931582SAndy Adamson { 1606fc931582SAndy Adamson __be32 *p; 1607fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1608fc931582SAndy Adamson uint32_t len; 1609fc931582SAndy Adamson struct nfs_client *clp = args->client; 16108e0d46e1SMike Sager u32 max_resp_sz_cached; 16118e0d46e1SMike Sager 16128e0d46e1SMike Sager /* 16138e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 16148e0d46e1SMike Sager * 2 is the verifier. 16158e0d46e1SMike Sager */ 16168e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 16178e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1618fc931582SAndy Adamson 1619fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1620fc931582SAndy Adamson clp->cl_ipaddr); 162142edd698SBenny Halevy 162213c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1623e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1624b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1625e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1626e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1627fc931582SAndy Adamson 1628fc931582SAndy Adamson /* Fore Channel */ 1629e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1630e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1631e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 16328e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1633e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1634e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1635e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1636fc931582SAndy Adamson 1637fc931582SAndy Adamson /* Back Channel */ 1638e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1639e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1640e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1641e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1642e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1643e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1644e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1645fc931582SAndy Adamson 1646e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1647e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1648e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1649fc931582SAndy Adamson 1650fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1651e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1652811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1653e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1654e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 165534558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1656fc931582SAndy Adamson hdr->nops++; 1657fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1658fc931582SAndy Adamson } 16590f3e66c6SAndy Adamson 16600f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16610f3e66c6SAndy Adamson struct nfs4_session *session, 16620f3e66c6SAndy Adamson struct compound_hdr *hdr) 16630f3e66c6SAndy Adamson { 16640f3e66c6SAndy Adamson __be32 *p; 166513c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1666e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 166734558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 16680f3e66c6SAndy Adamson hdr->nops++; 16690f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 16700f3e66c6SAndy Adamson } 167118019753SRicardo Labiaga 167218019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 167318019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 167418019753SRicardo Labiaga struct compound_hdr *hdr) 167518019753SRicardo Labiaga { 167618019753SRicardo Labiaga __be32 *p; 167718019753SRicardo Labiaga 167818019753SRicardo Labiaga p = reserve_space(xdr, 8); 167918019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 168018019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 168118019753SRicardo Labiaga hdr->nops++; 168218019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 168318019753SRicardo Labiaga } 168499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 168599fe60d0SBenny Halevy 16869b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 16879b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 16889b7b9fccSAndy Adamson struct compound_hdr *hdr) 16899b7b9fccSAndy Adamson { 16909b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 16919b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1692fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1693fc01cea9SAndy Adamson struct nfs4_slot *slot; 1694fc01cea9SAndy Adamson __be32 *p; 16959b7b9fccSAndy Adamson 16969b7b9fccSAndy Adamson if (!session) 16979b7b9fccSAndy Adamson return; 16989b7b9fccSAndy Adamson 1699fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1700fc01cea9SAndy Adamson 1701fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1702fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1703fc01cea9SAndy Adamson 170413c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1705e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1706fc01cea9SAndy Adamson 1707fc01cea9SAndy Adamson /* 1708fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1709fc01cea9SAndy Adamson */ 1710fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1711fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1712fc01cea9SAndy Adamson __func__, 1713fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1714fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1715fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1716fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1717fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1718fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 171993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1720e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1721e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1722e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 172334558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 17249b7b9fccSAndy Adamson hdr->nops++; 17259b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 17269b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 17279b7b9fccSAndy Adamson } 17289b7b9fccSAndy Adamson 17291da177e4SLinus Torvalds /* 17301da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 17311da177e4SLinus Torvalds */ 17321da177e4SLinus Torvalds 173366cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 173466cc0429SBenny Halevy { 173566cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 173666cc0429SBenny Halevy if (args->sa_session) 1737a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 173866cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 173966cc0429SBenny Halevy return 0; 174066cc0429SBenny Halevy } 174166cc0429SBenny Halevy 17421da177e4SLinus Torvalds /* 17431da177e4SLinus Torvalds * Encode an ACCESS request 17441da177e4SLinus Torvalds */ 17458687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 17461da177e4SLinus Torvalds { 17471da177e4SLinus Torvalds struct xdr_stream xdr; 17481da177e4SLinus Torvalds struct compound_hdr hdr = { 174966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17501da177e4SLinus Torvalds }; 17511da177e4SLinus Torvalds 17521da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17530c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17549b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1755cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1756cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1757cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1758d017931cSAndy Adamson encode_nops(&hdr); 1759cf8cdbe5SAndy Adamson return 0; 17601da177e4SLinus Torvalds } 17611da177e4SLinus Torvalds 17621da177e4SLinus Torvalds /* 17631da177e4SLinus Torvalds * Encode LOOKUP request 17641da177e4SLinus Torvalds */ 17658687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 17661da177e4SLinus Torvalds { 17671da177e4SLinus Torvalds struct xdr_stream xdr; 17681da177e4SLinus Torvalds struct compound_hdr hdr = { 176966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17701da177e4SLinus Torvalds }; 17711da177e4SLinus Torvalds 17721da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17730c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17749b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1775cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1776cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1777cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1778cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1779d017931cSAndy Adamson encode_nops(&hdr); 1780cf8cdbe5SAndy Adamson return 0; 17811da177e4SLinus Torvalds } 17821da177e4SLinus Torvalds 17831da177e4SLinus Torvalds /* 17841da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 17851da177e4SLinus Torvalds */ 17868687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 17871da177e4SLinus Torvalds { 17881da177e4SLinus Torvalds struct xdr_stream xdr; 17891da177e4SLinus Torvalds struct compound_hdr hdr = { 179066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17911da177e4SLinus Torvalds }; 17921da177e4SLinus Torvalds 17931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17940c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17959b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1796cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1797cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1798cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1799d017931cSAndy Adamson encode_nops(&hdr); 1800cf8cdbe5SAndy Adamson return 0; 18011da177e4SLinus Torvalds } 18021da177e4SLinus Torvalds 18031da177e4SLinus Torvalds /* 18041da177e4SLinus Torvalds * Encode REMOVE request 18051da177e4SLinus Torvalds */ 18064fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 18071da177e4SLinus Torvalds { 18081da177e4SLinus Torvalds struct xdr_stream xdr; 18091da177e4SLinus Torvalds struct compound_hdr hdr = { 181066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18111da177e4SLinus Torvalds }; 18121da177e4SLinus Torvalds 18131da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18140c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18159b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1816cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1817cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1818cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1819d017931cSAndy Adamson encode_nops(&hdr); 1820cf8cdbe5SAndy Adamson return 0; 18211da177e4SLinus Torvalds } 18221da177e4SLinus Torvalds 18231da177e4SLinus Torvalds /* 18241da177e4SLinus Torvalds * Encode RENAME request 18251da177e4SLinus Torvalds */ 1826920769f0SJeff Layton static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs_renameargs *args) 18271da177e4SLinus Torvalds { 18281da177e4SLinus Torvalds struct xdr_stream xdr; 18291da177e4SLinus Torvalds struct compound_hdr hdr = { 183066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18311da177e4SLinus Torvalds }; 18321da177e4SLinus Torvalds 18331da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18340c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18359b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1836cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1837cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1838cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1839cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1840cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1841cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1842cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1843d017931cSAndy Adamson encode_nops(&hdr); 1844cf8cdbe5SAndy Adamson return 0; 18451da177e4SLinus Torvalds } 18461da177e4SLinus Torvalds 18471da177e4SLinus Torvalds /* 18481da177e4SLinus Torvalds * Encode LINK request 18491da177e4SLinus Torvalds */ 18508687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 18511da177e4SLinus Torvalds { 18521da177e4SLinus Torvalds struct xdr_stream xdr; 18531da177e4SLinus Torvalds struct compound_hdr hdr = { 185466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18551da177e4SLinus Torvalds }; 18561da177e4SLinus Torvalds 18571da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18580c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18599b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1860cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1861cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1862cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1863cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1864cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1865cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1866cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1867d017931cSAndy Adamson encode_nops(&hdr); 1868cf8cdbe5SAndy Adamson return 0; 18691da177e4SLinus Torvalds } 18701da177e4SLinus Torvalds 18711da177e4SLinus Torvalds /* 18721da177e4SLinus Torvalds * Encode CREATE request 18731da177e4SLinus Torvalds */ 18748687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18751da177e4SLinus Torvalds { 18761da177e4SLinus Torvalds struct xdr_stream xdr; 18771da177e4SLinus Torvalds struct compound_hdr hdr = { 187866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18791da177e4SLinus Torvalds }; 18801da177e4SLinus Torvalds 18811da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18820c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18839b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1884cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1885cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1886cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1887cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1888cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1889cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1890cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1891d017931cSAndy Adamson encode_nops(&hdr); 1892cf8cdbe5SAndy Adamson return 0; 18931da177e4SLinus Torvalds } 18941da177e4SLinus Torvalds 18951da177e4SLinus Torvalds /* 18961da177e4SLinus Torvalds * Encode SYMLINK request 18971da177e4SLinus Torvalds */ 18988687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18991da177e4SLinus Torvalds { 19001da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 19011da177e4SLinus Torvalds } 19021da177e4SLinus Torvalds 19031da177e4SLinus Torvalds /* 19041da177e4SLinus Torvalds * Encode GETATTR request 19051da177e4SLinus Torvalds */ 19068687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 19071da177e4SLinus Torvalds { 19081da177e4SLinus Torvalds struct xdr_stream xdr; 19091da177e4SLinus Torvalds struct compound_hdr hdr = { 191066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19111da177e4SLinus Torvalds }; 19121da177e4SLinus Torvalds 19131da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19140c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19159b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1916cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1917cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1918d017931cSAndy Adamson encode_nops(&hdr); 1919cf8cdbe5SAndy Adamson return 0; 19201da177e4SLinus Torvalds } 19211da177e4SLinus Torvalds 19221da177e4SLinus Torvalds /* 19231da177e4SLinus Torvalds * Encode a CLOSE request 19241da177e4SLinus Torvalds */ 19258687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19261da177e4SLinus Torvalds { 19271da177e4SLinus Torvalds struct xdr_stream xdr; 19281da177e4SLinus Torvalds struct compound_hdr hdr = { 192966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19301da177e4SLinus Torvalds }; 19311da177e4SLinus Torvalds 19321da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19330c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19349b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1935cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1936cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1937cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1938d017931cSAndy Adamson encode_nops(&hdr); 1939cf8cdbe5SAndy Adamson return 0; 19401da177e4SLinus Torvalds } 19411da177e4SLinus Torvalds 19421da177e4SLinus Torvalds /* 19431da177e4SLinus Torvalds * Encode an OPEN request 19441da177e4SLinus Torvalds */ 19458687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19461da177e4SLinus Torvalds { 19471da177e4SLinus Torvalds struct xdr_stream xdr; 19481da177e4SLinus Torvalds struct compound_hdr hdr = { 194966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19501da177e4SLinus Torvalds }; 19511da177e4SLinus Torvalds 19521da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19530c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19549b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1955cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1956cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1957cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1958cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1959cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1960cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1961cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1962d017931cSAndy Adamson encode_nops(&hdr); 1963cf8cdbe5SAndy Adamson return 0; 19641da177e4SLinus Torvalds } 19651da177e4SLinus Torvalds 19661da177e4SLinus Torvalds /* 19671da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 19681da177e4SLinus Torvalds */ 19698687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 19701da177e4SLinus Torvalds { 19711da177e4SLinus Torvalds struct xdr_stream xdr; 19721da177e4SLinus Torvalds struct compound_hdr hdr = { 1973d017931cSAndy Adamson .nops = 0, 19741da177e4SLinus Torvalds }; 19751da177e4SLinus Torvalds 19761da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19770c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1978cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1979cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1980d017931cSAndy Adamson encode_nops(&hdr); 1981cf8cdbe5SAndy Adamson return 0; 19821da177e4SLinus Torvalds } 19831da177e4SLinus Torvalds 19841da177e4SLinus Torvalds /* 19851da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 19861da177e4SLinus Torvalds */ 19878687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19881da177e4SLinus Torvalds { 19891da177e4SLinus Torvalds struct xdr_stream xdr; 19901da177e4SLinus Torvalds struct compound_hdr hdr = { 199166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19921da177e4SLinus Torvalds }; 19931da177e4SLinus Torvalds 19941da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19950c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19969b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1997cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1998cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1999cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2000d017931cSAndy Adamson encode_nops(&hdr); 2001cf8cdbe5SAndy Adamson return 0; 20021da177e4SLinus Torvalds } 20031da177e4SLinus Torvalds 20041da177e4SLinus Torvalds /* 20051da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 20061da177e4SLinus Torvalds */ 20078687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 20081da177e4SLinus Torvalds { 20091da177e4SLinus Torvalds struct xdr_stream xdr; 20101da177e4SLinus Torvalds struct compound_hdr hdr = { 201166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20121da177e4SLinus Torvalds }; 20131da177e4SLinus Torvalds 20141da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20150c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20169b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2017cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2018cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 2019cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2020d017931cSAndy Adamson encode_nops(&hdr); 2021cf8cdbe5SAndy Adamson return 0; 20221da177e4SLinus Torvalds } 20231da177e4SLinus Torvalds 20241da177e4SLinus Torvalds /* 20251da177e4SLinus Torvalds * Encode a LOCK request 20261da177e4SLinus Torvalds */ 20278687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 20281da177e4SLinus Torvalds { 20291da177e4SLinus Torvalds struct xdr_stream xdr; 20301da177e4SLinus Torvalds struct compound_hdr hdr = { 203166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20321da177e4SLinus Torvalds }; 20331da177e4SLinus Torvalds 20341da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20350c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20369b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2037cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2038cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 2039d017931cSAndy Adamson encode_nops(&hdr); 2040cf8cdbe5SAndy Adamson return 0; 20411da177e4SLinus Torvalds } 20421da177e4SLinus Torvalds 20431da177e4SLinus Torvalds /* 20441da177e4SLinus Torvalds * Encode a LOCKT request 20451da177e4SLinus Torvalds */ 20468687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 20471da177e4SLinus Torvalds { 20481da177e4SLinus Torvalds struct xdr_stream xdr; 20491da177e4SLinus Torvalds struct compound_hdr hdr = { 205066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20511da177e4SLinus Torvalds }; 20521da177e4SLinus Torvalds 20531da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20540c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20559b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2056cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2057cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 2058d017931cSAndy Adamson encode_nops(&hdr); 2059cf8cdbe5SAndy Adamson return 0; 20601da177e4SLinus Torvalds } 20611da177e4SLinus Torvalds 20621da177e4SLinus Torvalds /* 20631da177e4SLinus Torvalds * Encode a LOCKU request 20641da177e4SLinus Torvalds */ 20658687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 20661da177e4SLinus Torvalds { 20671da177e4SLinus Torvalds struct xdr_stream xdr; 20681da177e4SLinus Torvalds struct compound_hdr hdr = { 206966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20701da177e4SLinus Torvalds }; 20711da177e4SLinus Torvalds 20721da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20730c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20749b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2075cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2076cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 2077d017931cSAndy Adamson encode_nops(&hdr); 2078cf8cdbe5SAndy Adamson return 0; 20791da177e4SLinus Torvalds } 20801da177e4SLinus Torvalds 2081d3c7b7ccSTrond Myklebust static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args) 2082d3c7b7ccSTrond Myklebust { 2083d3c7b7ccSTrond Myklebust struct xdr_stream xdr; 2084d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2085d3c7b7ccSTrond Myklebust .minorversion = 0, 2086d3c7b7ccSTrond Myklebust }; 2087d3c7b7ccSTrond Myklebust 2088d3c7b7ccSTrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2089d3c7b7ccSTrond Myklebust encode_compound_hdr(&xdr, req, &hdr); 2090d3c7b7ccSTrond Myklebust encode_release_lockowner(&xdr, &args->lock_owner, &hdr); 2091d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2092d3c7b7ccSTrond Myklebust return 0; 2093d3c7b7ccSTrond Myklebust } 2094d3c7b7ccSTrond Myklebust 20951da177e4SLinus Torvalds /* 20961da177e4SLinus Torvalds * Encode a READLINK request 20971da177e4SLinus Torvalds */ 20988687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 20991da177e4SLinus Torvalds { 21001da177e4SLinus Torvalds struct xdr_stream xdr; 21011da177e4SLinus Torvalds struct compound_hdr hdr = { 210266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21031da177e4SLinus Torvalds }; 21041da177e4SLinus Torvalds 21051da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21060c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21079b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2108cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2109cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2110e3a535e1STrond Myklebust 211128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2112e3a535e1STrond Myklebust args->pgbase, args->pglen); 2113d017931cSAndy Adamson encode_nops(&hdr); 2114cf8cdbe5SAndy Adamson return 0; 21151da177e4SLinus Torvalds } 21161da177e4SLinus Torvalds 21171da177e4SLinus Torvalds /* 21181da177e4SLinus Torvalds * Encode a READDIR request 21191da177e4SLinus Torvalds */ 21208687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 21211da177e4SLinus Torvalds { 21221da177e4SLinus Torvalds struct xdr_stream xdr; 21231da177e4SLinus Torvalds struct compound_hdr hdr = { 212466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21251da177e4SLinus Torvalds }; 21261da177e4SLinus Torvalds 21271da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21280c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21299b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2130cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2131cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2132d6ac02dfSTrond Myklebust 213328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2134d6ac02dfSTrond Myklebust args->pgbase, args->count); 2135d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 213628f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2137d6ac02dfSTrond Myklebust args->pgbase, args->count); 2138d017931cSAndy Adamson encode_nops(&hdr); 2139cf8cdbe5SAndy Adamson return 0; 21401da177e4SLinus Torvalds } 21411da177e4SLinus Torvalds 21421da177e4SLinus Torvalds /* 21431da177e4SLinus Torvalds * Encode a READ request 21441da177e4SLinus Torvalds */ 21458687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 21461da177e4SLinus Torvalds { 21471da177e4SLinus Torvalds struct xdr_stream xdr; 21481da177e4SLinus Torvalds struct compound_hdr hdr = { 214966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21501da177e4SLinus Torvalds }; 21511da177e4SLinus Torvalds 21521da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21530c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21549b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2155cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2156cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 21571da177e4SLinus Torvalds 215828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 21591da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 21604f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2161d017931cSAndy Adamson encode_nops(&hdr); 2162cf8cdbe5SAndy Adamson return 0; 21631da177e4SLinus Torvalds } 21641da177e4SLinus Torvalds 21651da177e4SLinus Torvalds /* 21661da177e4SLinus Torvalds * Encode an SETATTR request 21671da177e4SLinus Torvalds */ 21688687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 21691da177e4SLinus Torvalds { 21701da177e4SLinus Torvalds struct xdr_stream xdr; 21711da177e4SLinus Torvalds struct compound_hdr hdr = { 217266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21731da177e4SLinus Torvalds }; 21741da177e4SLinus Torvalds 21751da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21760c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21779b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2178cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2179cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2180cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2181d017931cSAndy Adamson encode_nops(&hdr); 2182cf8cdbe5SAndy Adamson return 0; 21831da177e4SLinus Torvalds } 21841da177e4SLinus Torvalds 21851da177e4SLinus Torvalds /* 2186029d105eSJ. Bruce Fields * Encode a GETACL request 2187029d105eSJ. Bruce Fields */ 2188029d105eSJ. Bruce Fields static int 21898687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2190029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2191029d105eSJ. Bruce Fields { 2192029d105eSJ. Bruce Fields struct xdr_stream xdr; 2193029d105eSJ. Bruce Fields struct compound_hdr hdr = { 219466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2195029d105eSJ. Bruce Fields }; 219628f56694SBenny Halevy uint32_t replen; 2197029d105eSJ. Bruce Fields 2198029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21990c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22009b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2201cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2202d327cf74SJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; 2203cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2204cf8cdbe5SAndy Adamson 220528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2206029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2207d017931cSAndy Adamson encode_nops(&hdr); 2208cf8cdbe5SAndy Adamson return 0; 2209029d105eSJ. Bruce Fields } 2210029d105eSJ. Bruce Fields 2211029d105eSJ. Bruce Fields /* 22121da177e4SLinus Torvalds * Encode a WRITE request 22131da177e4SLinus Torvalds */ 22148687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 22151da177e4SLinus Torvalds { 22161da177e4SLinus Torvalds struct xdr_stream xdr; 22171da177e4SLinus Torvalds struct compound_hdr hdr = { 221866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22191da177e4SLinus Torvalds }; 22201da177e4SLinus Torvalds 22211da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22220c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22239b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2224cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2225cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 22264f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2227cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2228d017931cSAndy Adamson encode_nops(&hdr); 2229cf8cdbe5SAndy Adamson return 0; 22301da177e4SLinus Torvalds } 22311da177e4SLinus Torvalds 22321da177e4SLinus Torvalds /* 22331da177e4SLinus Torvalds * a COMMIT request 22341da177e4SLinus Torvalds */ 22358687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 22361da177e4SLinus Torvalds { 22371da177e4SLinus Torvalds struct xdr_stream xdr; 22381da177e4SLinus Torvalds struct compound_hdr hdr = { 223966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22401da177e4SLinus Torvalds }; 22411da177e4SLinus Torvalds 22421da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22430c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22449b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2245cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2246cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2247cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2248d017931cSAndy Adamson encode_nops(&hdr); 2249cf8cdbe5SAndy Adamson return 0; 22501da177e4SLinus Torvalds } 22511da177e4SLinus Torvalds 22521da177e4SLinus Torvalds /* 22531da177e4SLinus Torvalds * FSINFO request 22541da177e4SLinus Torvalds */ 22558687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 22561da177e4SLinus Torvalds { 22571da177e4SLinus Torvalds struct xdr_stream xdr; 22581da177e4SLinus Torvalds struct compound_hdr hdr = { 225966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22601da177e4SLinus Torvalds }; 22611da177e4SLinus Torvalds 22621da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22630c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22649b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2265cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2266cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2267d017931cSAndy Adamson encode_nops(&hdr); 2268cf8cdbe5SAndy Adamson return 0; 22691da177e4SLinus Torvalds } 22701da177e4SLinus Torvalds 22711da177e4SLinus Torvalds /* 22721da177e4SLinus Torvalds * a PATHCONF request 22731da177e4SLinus Torvalds */ 22748687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 22751da177e4SLinus Torvalds { 22761da177e4SLinus Torvalds struct xdr_stream xdr; 22771da177e4SLinus Torvalds struct compound_hdr hdr = { 227866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22791da177e4SLinus Torvalds }; 22801da177e4SLinus Torvalds 22811da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22820c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22839b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2284cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2285cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2286d017931cSAndy Adamson &hdr); 2287d017931cSAndy Adamson encode_nops(&hdr); 2288cf8cdbe5SAndy Adamson return 0; 22891da177e4SLinus Torvalds } 22901da177e4SLinus Torvalds 22911da177e4SLinus Torvalds /* 22921da177e4SLinus Torvalds * a STATFS request 22931da177e4SLinus Torvalds */ 22948687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 22951da177e4SLinus Torvalds { 22961da177e4SLinus Torvalds struct xdr_stream xdr; 22971da177e4SLinus Torvalds struct compound_hdr hdr = { 229866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22991da177e4SLinus Torvalds }; 23001da177e4SLinus Torvalds 23011da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23020c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23039b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2304cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2305cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2306d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2307d017931cSAndy Adamson encode_nops(&hdr); 2308cf8cdbe5SAndy Adamson return 0; 23091da177e4SLinus Torvalds } 23101da177e4SLinus Torvalds 23111da177e4SLinus Torvalds /* 23121da177e4SLinus Torvalds * GETATTR_BITMAP request 23131da177e4SLinus Torvalds */ 231443652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 231543652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 23161da177e4SLinus Torvalds { 23171da177e4SLinus Torvalds struct xdr_stream xdr; 23181da177e4SLinus Torvalds struct compound_hdr hdr = { 231966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23201da177e4SLinus Torvalds }; 23211da177e4SLinus Torvalds 23221da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23230c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23249b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 232543652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2326cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 23271da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 23281da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2329d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2330d017931cSAndy Adamson encode_nops(&hdr); 2331cf8cdbe5SAndy Adamson return 0; 23321da177e4SLinus Torvalds } 23331da177e4SLinus Torvalds 23341da177e4SLinus Torvalds /* 23351da177e4SLinus Torvalds * a RENEW request 23361da177e4SLinus Torvalds */ 23378687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 23381da177e4SLinus Torvalds { 23391da177e4SLinus Torvalds struct xdr_stream xdr; 23401da177e4SLinus Torvalds struct compound_hdr hdr = { 2341d017931cSAndy Adamson .nops = 0, 23421da177e4SLinus Torvalds }; 23431da177e4SLinus Torvalds 23441da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23450c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2346cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2347d017931cSAndy Adamson encode_nops(&hdr); 2348cf8cdbe5SAndy Adamson return 0; 23491da177e4SLinus Torvalds } 23501da177e4SLinus Torvalds 23511da177e4SLinus Torvalds /* 23521da177e4SLinus Torvalds * a SETCLIENTID request 23531da177e4SLinus Torvalds */ 23548687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 23551da177e4SLinus Torvalds { 23561da177e4SLinus Torvalds struct xdr_stream xdr; 23571da177e4SLinus Torvalds struct compound_hdr hdr = { 2358d017931cSAndy Adamson .nops = 0, 23591da177e4SLinus Torvalds }; 23601da177e4SLinus Torvalds 23611da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23620c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2363cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2364d017931cSAndy Adamson encode_nops(&hdr); 2365cf8cdbe5SAndy Adamson return 0; 23661da177e4SLinus Torvalds } 23671da177e4SLinus Torvalds 23681da177e4SLinus Torvalds /* 23691da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 23701da177e4SLinus Torvalds */ 2371bb8b27e5STrond Myklebust static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid_res *arg) 23721da177e4SLinus Torvalds { 23731da177e4SLinus Torvalds struct xdr_stream xdr; 23741da177e4SLinus Torvalds struct compound_hdr hdr = { 2375d017931cSAndy Adamson .nops = 0, 23761da177e4SLinus Torvalds }; 23771da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 23781da177e4SLinus Torvalds 23791da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23800c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2381bb8b27e5STrond Myklebust encode_setclientid_confirm(&xdr, arg, &hdr); 2382cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2383cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2384d017931cSAndy Adamson encode_nops(&hdr); 2385cf8cdbe5SAndy Adamson return 0; 23861da177e4SLinus Torvalds } 23871da177e4SLinus Torvalds 23881da177e4SLinus Torvalds /* 23891da177e4SLinus Torvalds * DELEGRETURN request 23901da177e4SLinus Torvalds */ 23918687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 23921da177e4SLinus Torvalds { 23931da177e4SLinus Torvalds struct xdr_stream xdr; 23941da177e4SLinus Torvalds struct compound_hdr hdr = { 239566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23961da177e4SLinus Torvalds }; 23971da177e4SLinus Torvalds 23981da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23990c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 24009b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2401cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2402cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2403cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2404d017931cSAndy Adamson encode_nops(&hdr); 2405cf8cdbe5SAndy Adamson return 0; 24061da177e4SLinus Torvalds } 24071da177e4SLinus Torvalds 24081da177e4SLinus Torvalds /* 2409683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2410683b57b4STrond Myklebust */ 24118687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2412683b57b4STrond Myklebust { 2413683b57b4STrond Myklebust struct xdr_stream xdr; 2414683b57b4STrond Myklebust struct compound_hdr hdr = { 241566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2416683b57b4STrond Myklebust }; 241728f56694SBenny Halevy uint32_t replen; 2418683b57b4STrond Myklebust 2419683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24200c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 24219b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2422cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2423cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 242428f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2425cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2426cf8cdbe5SAndy Adamson 242728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2428683b57b4STrond Myklebust 0, PAGE_SIZE); 2429d017931cSAndy Adamson encode_nops(&hdr); 2430cf8cdbe5SAndy Adamson return 0; 2431683b57b4STrond Myklebust } 2432683b57b4STrond Myklebust 243399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 243499fe60d0SBenny Halevy /* 243599fe60d0SBenny Halevy * EXCHANGE_ID request 243699fe60d0SBenny Halevy */ 243799fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 243899fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 243999fe60d0SBenny Halevy { 244099fe60d0SBenny Halevy struct xdr_stream xdr; 244199fe60d0SBenny Halevy struct compound_hdr hdr = { 2442a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 244399fe60d0SBenny Halevy }; 244499fe60d0SBenny Halevy 244599fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 244699fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 244799fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 244899fe60d0SBenny Halevy encode_nops(&hdr); 244999fe60d0SBenny Halevy return 0; 245099fe60d0SBenny Halevy } 24512050f0ccSAndy Adamson 24522050f0ccSAndy Adamson /* 2453fc931582SAndy Adamson * a CREATE_SESSION request 2454fc931582SAndy Adamson */ 2455fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2456fc931582SAndy Adamson struct nfs41_create_session_args *args) 2457fc931582SAndy Adamson { 2458fc931582SAndy Adamson struct xdr_stream xdr; 2459fc931582SAndy Adamson struct compound_hdr hdr = { 2460a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2461fc931582SAndy Adamson }; 2462fc931582SAndy Adamson 2463fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2464fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2465fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2466fc931582SAndy Adamson encode_nops(&hdr); 2467fc931582SAndy Adamson return 0; 2468fc931582SAndy Adamson } 2469fc931582SAndy Adamson 2470fc931582SAndy Adamson /* 24710f3e66c6SAndy Adamson * a DESTROY_SESSION request 24720f3e66c6SAndy Adamson */ 24730f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 24740f3e66c6SAndy Adamson struct nfs4_session *session) 24750f3e66c6SAndy Adamson { 24760f3e66c6SAndy Adamson struct xdr_stream xdr; 24770f3e66c6SAndy Adamson struct compound_hdr hdr = { 2478a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 24790f3e66c6SAndy Adamson }; 24800f3e66c6SAndy Adamson 24810f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24820f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24830f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 24840f3e66c6SAndy Adamson encode_nops(&hdr); 24850f3e66c6SAndy Adamson return 0; 24860f3e66c6SAndy Adamson } 24870f3e66c6SAndy Adamson 24880f3e66c6SAndy Adamson /* 2489fc01cea9SAndy Adamson * a SEQUENCE request 2490fc01cea9SAndy Adamson */ 2491fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2492fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2493fc01cea9SAndy Adamson { 2494fc01cea9SAndy Adamson struct xdr_stream xdr; 2495fc01cea9SAndy Adamson struct compound_hdr hdr = { 2496fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2497fc01cea9SAndy Adamson }; 2498fc01cea9SAndy Adamson 2499fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2500fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2501fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2502fc01cea9SAndy Adamson encode_nops(&hdr); 2503fc01cea9SAndy Adamson return 0; 2504fc01cea9SAndy Adamson } 2505fc01cea9SAndy Adamson 2506fc01cea9SAndy Adamson /* 25072050f0ccSAndy Adamson * a GET_LEASE_TIME request 25082050f0ccSAndy Adamson */ 25092050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 25102050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 25112050f0ccSAndy Adamson { 25122050f0ccSAndy Adamson struct xdr_stream xdr; 25132050f0ccSAndy Adamson struct compound_hdr hdr = { 25142050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 25152050f0ccSAndy Adamson }; 25162050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 25172050f0ccSAndy Adamson 25182050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 25192050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 25202050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 25212050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 25222050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 25232050f0ccSAndy Adamson encode_nops(&hdr); 25242050f0ccSAndy Adamson return 0; 25252050f0ccSAndy Adamson } 252618019753SRicardo Labiaga 252718019753SRicardo Labiaga /* 252818019753SRicardo Labiaga * a RECLAIM_COMPLETE request 252918019753SRicardo Labiaga */ 253018019753SRicardo Labiaga static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p, 253118019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 253218019753SRicardo Labiaga { 253318019753SRicardo Labiaga struct xdr_stream xdr; 253418019753SRicardo Labiaga struct compound_hdr hdr = { 253518019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 253618019753SRicardo Labiaga }; 253718019753SRicardo Labiaga 253818019753SRicardo Labiaga xdr_init_encode(&xdr, &req->rq_snd_buf, p); 253918019753SRicardo Labiaga encode_compound_hdr(&xdr, req, &hdr); 254018019753SRicardo Labiaga encode_sequence(&xdr, &args->seq_args, &hdr); 254118019753SRicardo Labiaga encode_reclaim_complete(&xdr, args, &hdr); 254218019753SRicardo Labiaga encode_nops(&hdr); 254318019753SRicardo Labiaga return 0; 254418019753SRicardo Labiaga } 254518019753SRicardo Labiaga 254699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 254799fe60d0SBenny Halevy 2548686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2549686841b3SBenny Halevy { 2550686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2551686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2552686841b3SBenny Halevy func, xdr->end - xdr->p); 2553686841b3SBenny Halevy } 25541da177e4SLinus Torvalds 2555683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 25561da177e4SLinus Torvalds { 25578687b63aSAl Viro __be32 *p; 25581da177e4SLinus Torvalds 2559c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2560c0eae66eSBenny Halevy if (unlikely(!p)) 2561c0eae66eSBenny Halevy goto out_overflow; 2562cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2563c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2564c0eae66eSBenny Halevy if (unlikely(!p)) 2565c0eae66eSBenny Halevy goto out_overflow; 25661da177e4SLinus Torvalds *string = (char *)p; 25671da177e4SLinus Torvalds return 0; 2568c0eae66eSBenny Halevy out_overflow: 2569c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2570c0eae66eSBenny Halevy return -EIO; 25711da177e4SLinus Torvalds } 25721da177e4SLinus Torvalds 25731da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 25741da177e4SLinus Torvalds { 25758687b63aSAl Viro __be32 *p; 25761da177e4SLinus Torvalds 2577c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2578c0eae66eSBenny Halevy if (unlikely(!p)) 2579c0eae66eSBenny Halevy goto out_overflow; 25806f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2581cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 25821da177e4SLinus Torvalds 2583c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2584c0eae66eSBenny Halevy if (unlikely(!p)) 2585c0eae66eSBenny Halevy goto out_overflow; 25861da177e4SLinus Torvalds hdr->tag = (char *)p; 25871da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2588cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2589aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2590aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 25911da177e4SLinus Torvalds return 0; 2592c0eae66eSBenny Halevy out_overflow: 2593c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2594c0eae66eSBenny Halevy return -EIO; 25951da177e4SLinus Torvalds } 25961da177e4SLinus Torvalds 25971da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 25981da177e4SLinus Torvalds { 25998687b63aSAl Viro __be32 *p; 26001da177e4SLinus Torvalds uint32_t opnum; 26011da177e4SLinus Torvalds int32_t nfserr; 26021da177e4SLinus Torvalds 2603c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2604c0eae66eSBenny Halevy if (unlikely(!p)) 2605c0eae66eSBenny Halevy goto out_overflow; 26066f723f77SBenny Halevy opnum = be32_to_cpup(p++); 26071da177e4SLinus Torvalds if (opnum != expected) { 2608fe82a183SChuck Lever dprintk("nfs: Server returned operation" 26091da177e4SLinus Torvalds " %d but we issued a request for %d\n", 26101da177e4SLinus Torvalds opnum, expected); 26111da177e4SLinus Torvalds return -EIO; 26121da177e4SLinus Torvalds } 2613cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 26141da177e4SLinus Torvalds if (nfserr != NFS_OK) 2615856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 26161da177e4SLinus Torvalds return 0; 2617c0eae66eSBenny Halevy out_overflow: 2618c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2619c0eae66eSBenny Halevy return -EIO; 26201da177e4SLinus Torvalds } 26211da177e4SLinus Torvalds 26221da177e4SLinus Torvalds /* Dummy routine */ 2623adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 26241da177e4SLinus Torvalds { 26258687b63aSAl Viro __be32 *p; 2626683b57b4STrond Myklebust unsigned int strlen; 26271da177e4SLinus Torvalds char *str; 26281da177e4SLinus Torvalds 2629c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2630c0eae66eSBenny Halevy if (likely(p)) 26311da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2632c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2633c0eae66eSBenny Halevy return -EIO; 26341da177e4SLinus Torvalds } 26351da177e4SLinus Torvalds 26361da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 26371da177e4SLinus Torvalds { 26388687b63aSAl Viro uint32_t bmlen; 26398687b63aSAl Viro __be32 *p; 26401da177e4SLinus Torvalds 2641c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2642c0eae66eSBenny Halevy if (unlikely(!p)) 2643c0eae66eSBenny Halevy goto out_overflow; 2644cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 26451da177e4SLinus Torvalds 26461da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2647c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2648c0eae66eSBenny Halevy if (unlikely(!p)) 2649c0eae66eSBenny Halevy goto out_overflow; 26501da177e4SLinus Torvalds if (bmlen > 0) { 26516f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 26521da177e4SLinus Torvalds if (bmlen > 1) 2653cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 26541da177e4SLinus Torvalds } 26551da177e4SLinus Torvalds return 0; 2656c0eae66eSBenny Halevy out_overflow: 2657c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2658c0eae66eSBenny Halevy return -EIO; 26591da177e4SLinus Torvalds } 26601da177e4SLinus Torvalds 26618687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 26621da177e4SLinus Torvalds { 26638687b63aSAl Viro __be32 *p; 26641da177e4SLinus Torvalds 2665c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2666c0eae66eSBenny Halevy if (unlikely(!p)) 2667c0eae66eSBenny Halevy goto out_overflow; 2668cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 26691da177e4SLinus Torvalds *savep = xdr->p; 26701da177e4SLinus Torvalds return 0; 2671c0eae66eSBenny Halevy out_overflow: 2672c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2673c0eae66eSBenny Halevy return -EIO; 26741da177e4SLinus Torvalds } 26751da177e4SLinus Torvalds 26761da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 26771da177e4SLinus Torvalds { 26781da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 26791da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 26801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 26811da177e4SLinus Torvalds } else 26821da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 268344109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 26841da177e4SLinus Torvalds return 0; 26851da177e4SLinus Torvalds } 26861da177e4SLinus Torvalds 26871da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 26881da177e4SLinus Torvalds { 26898687b63aSAl Viro __be32 *p; 2690409924e4STrond Myklebust int ret = 0; 26911da177e4SLinus Torvalds 26921da177e4SLinus Torvalds *type = 0; 26931da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 26941da177e4SLinus Torvalds return -EIO; 26951da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2696c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2697c0eae66eSBenny Halevy if (unlikely(!p)) 2698c0eae66eSBenny Halevy goto out_overflow; 2699cccddf4fSBenny Halevy *type = be32_to_cpup(p); 27001da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 27013110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 27021da177e4SLinus Torvalds return -EIO; 27031da177e4SLinus Torvalds } 27041da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2705409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 27061da177e4SLinus Torvalds } 2707bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2708409924e4STrond Myklebust return ret; 2709c0eae66eSBenny Halevy out_overflow: 2710c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2711c0eae66eSBenny Halevy return -EIO; 27121da177e4SLinus Torvalds } 27131da177e4SLinus Torvalds 27141da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 27151da177e4SLinus Torvalds { 27168687b63aSAl Viro __be32 *p; 2717409924e4STrond Myklebust int ret = 0; 27181da177e4SLinus Torvalds 27191da177e4SLinus Torvalds *change = 0; 27201da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 27211da177e4SLinus Torvalds return -EIO; 27221da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2723c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2724c0eae66eSBenny Halevy if (unlikely(!p)) 2725c0eae66eSBenny Halevy goto out_overflow; 2726cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 27271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2728409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 27291da177e4SLinus Torvalds } 27303110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 27311da177e4SLinus Torvalds (unsigned long long)*change); 2732409924e4STrond Myklebust return ret; 2733c0eae66eSBenny Halevy out_overflow: 2734c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2735c0eae66eSBenny Halevy return -EIO; 27361da177e4SLinus Torvalds } 27371da177e4SLinus Torvalds 27381da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 27391da177e4SLinus Torvalds { 27408687b63aSAl Viro __be32 *p; 2741409924e4STrond Myklebust int ret = 0; 27421da177e4SLinus Torvalds 27431da177e4SLinus Torvalds *size = 0; 27441da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 27451da177e4SLinus Torvalds return -EIO; 27461da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2747c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2748c0eae66eSBenny Halevy if (unlikely(!p)) 2749c0eae66eSBenny Halevy goto out_overflow; 2750cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 27511da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2752409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 27531da177e4SLinus Torvalds } 27543110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2755409924e4STrond Myklebust return ret; 2756c0eae66eSBenny Halevy out_overflow: 2757c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2758c0eae66eSBenny Halevy return -EIO; 27591da177e4SLinus Torvalds } 27601da177e4SLinus Torvalds 27611da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27621da177e4SLinus Torvalds { 27638687b63aSAl Viro __be32 *p; 27641da177e4SLinus Torvalds 27651da177e4SLinus Torvalds *res = 0; 27661da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 27671da177e4SLinus Torvalds return -EIO; 27681da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2769c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2770c0eae66eSBenny Halevy if (unlikely(!p)) 2771c0eae66eSBenny Halevy goto out_overflow; 2772cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27731da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 27741da177e4SLinus Torvalds } 27753110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 27761da177e4SLinus Torvalds return 0; 2777c0eae66eSBenny Halevy out_overflow: 2778c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2779c0eae66eSBenny Halevy return -EIO; 27801da177e4SLinus Torvalds } 27811da177e4SLinus Torvalds 27821da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27831da177e4SLinus Torvalds { 27848687b63aSAl Viro __be32 *p; 27851da177e4SLinus Torvalds 27861da177e4SLinus Torvalds *res = 0; 27871da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 27881da177e4SLinus Torvalds return -EIO; 27891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2790c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2791c0eae66eSBenny Halevy if (unlikely(!p)) 2792c0eae66eSBenny Halevy goto out_overflow; 2793cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27941da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 27951da177e4SLinus Torvalds } 27963110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 27971da177e4SLinus Torvalds return 0; 2798c0eae66eSBenny Halevy out_overflow: 2799c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2800c0eae66eSBenny Halevy return -EIO; 28011da177e4SLinus Torvalds } 28021da177e4SLinus Torvalds 28038b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 28041da177e4SLinus Torvalds { 28058687b63aSAl Viro __be32 *p; 2806409924e4STrond Myklebust int ret = 0; 28071da177e4SLinus Torvalds 28081da177e4SLinus Torvalds fsid->major = 0; 28091da177e4SLinus Torvalds fsid->minor = 0; 28101da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 28111da177e4SLinus Torvalds return -EIO; 28121da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2813c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2814c0eae66eSBenny Halevy if (unlikely(!p)) 2815c0eae66eSBenny Halevy goto out_overflow; 28163ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2817cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 28181da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2819409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 28201da177e4SLinus Torvalds } 28213110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 28221da177e4SLinus Torvalds (unsigned long long)fsid->major, 28231da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2824409924e4STrond Myklebust return ret; 2825c0eae66eSBenny Halevy out_overflow: 2826c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2827c0eae66eSBenny Halevy return -EIO; 28281da177e4SLinus Torvalds } 28291da177e4SLinus Torvalds 28301da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28311da177e4SLinus Torvalds { 28328687b63aSAl Viro __be32 *p; 28331da177e4SLinus Torvalds 28341da177e4SLinus Torvalds *res = 60; 28351da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 28361da177e4SLinus Torvalds return -EIO; 28371da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2838c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2839c0eae66eSBenny Halevy if (unlikely(!p)) 2840c0eae66eSBenny Halevy goto out_overflow; 2841cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 28431da177e4SLinus Torvalds } 28443110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 28451da177e4SLinus Torvalds return 0; 2846c0eae66eSBenny Halevy out_overflow: 2847c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2848c0eae66eSBenny Halevy return -EIO; 28491da177e4SLinus Torvalds } 28501da177e4SLinus Torvalds 28511da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28521da177e4SLinus Torvalds { 28538687b63aSAl Viro __be32 *p; 28541da177e4SLinus Torvalds 28551da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 28561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 28571da177e4SLinus Torvalds return -EIO; 28581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2859c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2860c0eae66eSBenny Halevy if (unlikely(!p)) 2861c0eae66eSBenny Halevy goto out_overflow; 2862cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 28641da177e4SLinus Torvalds } 28653110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 28661da177e4SLinus Torvalds return 0; 2867c0eae66eSBenny Halevy out_overflow: 2868c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2869c0eae66eSBenny Halevy return -EIO; 28701da177e4SLinus Torvalds } 28711da177e4SLinus Torvalds 28721da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 28731da177e4SLinus Torvalds { 28748687b63aSAl Viro __be32 *p; 2875409924e4STrond Myklebust int ret = 0; 28761da177e4SLinus Torvalds 28771da177e4SLinus Torvalds *fileid = 0; 28781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 28791da177e4SLinus Torvalds return -EIO; 28801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2881c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2882c0eae66eSBenny Halevy if (unlikely(!p)) 2883c0eae66eSBenny Halevy goto out_overflow; 2884cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 28851da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2886409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 28871da177e4SLinus Torvalds } 28883110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2889409924e4STrond Myklebust return ret; 2890c0eae66eSBenny Halevy out_overflow: 2891c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2892c0eae66eSBenny Halevy return -EIO; 28931da177e4SLinus Torvalds } 28941da177e4SLinus Torvalds 289599baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 289699baf625SManoj Naik { 28978687b63aSAl Viro __be32 *p; 2898409924e4STrond Myklebust int ret = 0; 289999baf625SManoj Naik 290099baf625SManoj Naik *fileid = 0; 290199baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 290299baf625SManoj Naik return -EIO; 290399baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 2904c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2905c0eae66eSBenny Halevy if (unlikely(!p)) 2906c0eae66eSBenny Halevy goto out_overflow; 2907cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 290899baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2909409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 291099baf625SManoj Naik } 29113110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2912409924e4STrond Myklebust return ret; 2913c0eae66eSBenny Halevy out_overflow: 2914c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2915c0eae66eSBenny Halevy return -EIO; 291699baf625SManoj Naik } 291799baf625SManoj Naik 29181da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29191da177e4SLinus Torvalds { 29208687b63aSAl Viro __be32 *p; 29211da177e4SLinus Torvalds int status = 0; 29221da177e4SLinus Torvalds 29231da177e4SLinus Torvalds *res = 0; 29241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 29251da177e4SLinus Torvalds return -EIO; 29261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 2927c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2928c0eae66eSBenny Halevy if (unlikely(!p)) 2929c0eae66eSBenny Halevy goto out_overflow; 2930cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 29311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 29321da177e4SLinus Torvalds } 29333110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 29341da177e4SLinus Torvalds return status; 2935c0eae66eSBenny Halevy out_overflow: 2936c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2937c0eae66eSBenny Halevy return -EIO; 29381da177e4SLinus Torvalds } 29391da177e4SLinus Torvalds 29401da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29411da177e4SLinus Torvalds { 29428687b63aSAl Viro __be32 *p; 29431da177e4SLinus Torvalds int status = 0; 29441da177e4SLinus Torvalds 29451da177e4SLinus Torvalds *res = 0; 29461da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 29471da177e4SLinus Torvalds return -EIO; 29481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 2949c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2950c0eae66eSBenny Halevy if (unlikely(!p)) 2951c0eae66eSBenny Halevy goto out_overflow; 2952cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 29531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 29541da177e4SLinus Torvalds } 29553110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 29561da177e4SLinus Torvalds return status; 2957c0eae66eSBenny Halevy out_overflow: 2958c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2959c0eae66eSBenny Halevy return -EIO; 29601da177e4SLinus Torvalds } 29611da177e4SLinus Torvalds 29621da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29631da177e4SLinus Torvalds { 29648687b63aSAl Viro __be32 *p; 29651da177e4SLinus Torvalds int status = 0; 29661da177e4SLinus Torvalds 29671da177e4SLinus Torvalds *res = 0; 29681da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 29691da177e4SLinus Torvalds return -EIO; 29701da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 2971c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2972c0eae66eSBenny Halevy if (unlikely(!p)) 2973c0eae66eSBenny Halevy goto out_overflow; 2974cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 29751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 29761da177e4SLinus Torvalds } 29773110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 29781da177e4SLinus Torvalds return status; 2979c0eae66eSBenny Halevy out_overflow: 2980c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2981c0eae66eSBenny Halevy return -EIO; 29821da177e4SLinus Torvalds } 29831da177e4SLinus Torvalds 29847aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 29857aaa0b3bSManoj Naik { 2986464ad6b1SChuck Lever u32 n; 29878687b63aSAl Viro __be32 *p; 29887aaa0b3bSManoj Naik int status = 0; 29897aaa0b3bSManoj Naik 2990c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2991c0eae66eSBenny Halevy if (unlikely(!p)) 2992c0eae66eSBenny Halevy goto out_overflow; 2993cccddf4fSBenny Halevy n = be32_to_cpup(p); 299433a43f28SAndy Adamson if (n == 0) 299533a43f28SAndy Adamson goto root_path; 29967aaa0b3bSManoj Naik dprintk("path "); 29977aaa0b3bSManoj Naik path->ncomponents = 0; 29987aaa0b3bSManoj Naik while (path->ncomponents < n) { 29997aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 30007aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 30017aaa0b3bSManoj Naik if (unlikely(status != 0)) 30027aaa0b3bSManoj Naik goto out_eio; 30037aaa0b3bSManoj Naik if (path->ncomponents != n) 30047aaa0b3bSManoj Naik dprintk("/"); 30057aaa0b3bSManoj Naik dprintk("%s", component->data); 30067aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 30077aaa0b3bSManoj Naik path->ncomponents++; 30087aaa0b3bSManoj Naik else { 30097aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 30107aaa0b3bSManoj Naik goto out_eio; 30117aaa0b3bSManoj Naik } 30127aaa0b3bSManoj Naik } 30137aaa0b3bSManoj Naik out: 30147aaa0b3bSManoj Naik dprintk("\n"); 30157aaa0b3bSManoj Naik return status; 301633a43f28SAndy Adamson root_path: 301733a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 301833a43f28SAndy Adamson path->ncomponents = 1; 301933a43f28SAndy Adamson path->components[0].len=0; 302033a43f28SAndy Adamson path->components[0].data=NULL; 302133a43f28SAndy Adamson dprintk("path /\n"); 302233a43f28SAndy Adamson goto out; 30237aaa0b3bSManoj Naik out_eio: 30247aaa0b3bSManoj Naik dprintk(" status %d", status); 30257aaa0b3bSManoj Naik status = -EIO; 30267aaa0b3bSManoj Naik goto out; 3027c0eae66eSBenny Halevy out_overflow: 3028c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3029c0eae66eSBenny Halevy return -EIO; 30307aaa0b3bSManoj Naik } 30317aaa0b3bSManoj Naik 30327aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3033683b57b4STrond Myklebust { 3034683b57b4STrond Myklebust int n; 30358687b63aSAl Viro __be32 *p; 3036683b57b4STrond Myklebust int status = -EIO; 3037683b57b4STrond Myklebust 3038683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3039683b57b4STrond Myklebust goto out; 3040683b57b4STrond Myklebust status = 0; 3041683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3042683b57b4STrond Myklebust goto out; 30433110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 30447aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3045683b57b4STrond Myklebust if (unlikely(status != 0)) 3046683b57b4STrond Myklebust goto out; 3047c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3048c0eae66eSBenny Halevy if (unlikely(!p)) 3049c0eae66eSBenny Halevy goto out_overflow; 3050cccddf4fSBenny Halevy n = be32_to_cpup(p); 3051683b57b4STrond Myklebust if (n <= 0) 3052683b57b4STrond Myklebust goto out_eio; 3053683b57b4STrond Myklebust res->nlocations = 0; 3054683b57b4STrond Myklebust while (res->nlocations < n) { 3055464ad6b1SChuck Lever u32 m; 30567aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3057683b57b4STrond Myklebust 3058c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3059c0eae66eSBenny Halevy if (unlikely(!p)) 3060c0eae66eSBenny Halevy goto out_overflow; 3061cccddf4fSBenny Halevy m = be32_to_cpup(p); 30627aaa0b3bSManoj Naik 30637aaa0b3bSManoj Naik loc->nservers = 0; 30643110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 30657aaa0b3bSManoj Naik while (loc->nservers < m) { 30667aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 30677aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3068683b57b4STrond Myklebust if (unlikely(status != 0)) 3069683b57b4STrond Myklebust goto out_eio; 30707aaa0b3bSManoj Naik dprintk("%s ", server->data); 30717aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 30727aaa0b3bSManoj Naik loc->nservers++; 30737aaa0b3bSManoj Naik else { 3074464ad6b1SChuck Lever unsigned int i; 3075464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3076464ad6b1SChuck Lever "returned for location %u\n", 30773110ff80SHarvey Harrison __func__, 3078464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3079464ad6b1SChuck Lever m, res->nlocations); 30807aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 30812e42c3e2STrond Myklebust unsigned int len; 30827aaa0b3bSManoj Naik char *data; 30837aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3084683b57b4STrond Myklebust if (unlikely(status != 0)) 3085683b57b4STrond Myklebust goto out_eio; 30867aaa0b3bSManoj Naik } 30877aaa0b3bSManoj Naik } 30887aaa0b3bSManoj Naik } 30897aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 30907aaa0b3bSManoj Naik if (unlikely(status != 0)) 30917aaa0b3bSManoj Naik goto out_eio; 30927aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3093683b57b4STrond Myklebust res->nlocations++; 3094683b57b4STrond Myklebust } 3095409924e4STrond Myklebust if (res->nlocations != 0) 3096409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3097683b57b4STrond Myklebust out: 30983110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3099683b57b4STrond Myklebust return status; 3100c0eae66eSBenny Halevy out_overflow: 3101c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3102683b57b4STrond Myklebust out_eio: 3103683b57b4STrond Myklebust status = -EIO; 3104683b57b4STrond Myklebust goto out; 3105683b57b4STrond Myklebust } 3106683b57b4STrond Myklebust 31071da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31081da177e4SLinus Torvalds { 31098687b63aSAl Viro __be32 *p; 31101da177e4SLinus Torvalds int status = 0; 31111da177e4SLinus Torvalds 31121da177e4SLinus Torvalds *res = 0; 31131da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 31141da177e4SLinus Torvalds return -EIO; 31151da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3116c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3117c0eae66eSBenny Halevy if (unlikely(!p)) 3118c0eae66eSBenny Halevy goto out_overflow; 3119cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 31201da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 31211da177e4SLinus Torvalds } 31223110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 31231da177e4SLinus Torvalds return status; 3124c0eae66eSBenny Halevy out_overflow: 3125c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3126c0eae66eSBenny Halevy return -EIO; 31271da177e4SLinus Torvalds } 31281da177e4SLinus Torvalds 31291da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 31301da177e4SLinus Torvalds { 31318687b63aSAl Viro __be32 *p; 31321da177e4SLinus Torvalds int status = 0; 31331da177e4SLinus Torvalds 31341da177e4SLinus Torvalds *maxlink = 1; 31351da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 31361da177e4SLinus Torvalds return -EIO; 31371da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3138c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3139c0eae66eSBenny Halevy if (unlikely(!p)) 3140c0eae66eSBenny Halevy goto out_overflow; 3141cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 31421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 31431da177e4SLinus Torvalds } 31443110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 31451da177e4SLinus Torvalds return status; 3146c0eae66eSBenny Halevy out_overflow: 3147c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3148c0eae66eSBenny Halevy return -EIO; 31491da177e4SLinus Torvalds } 31501da177e4SLinus Torvalds 31511da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 31521da177e4SLinus Torvalds { 31538687b63aSAl Viro __be32 *p; 31541da177e4SLinus Torvalds int status = 0; 31551da177e4SLinus Torvalds 31561da177e4SLinus Torvalds *maxname = 1024; 31571da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 31581da177e4SLinus Torvalds return -EIO; 31591da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3160c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3161c0eae66eSBenny Halevy if (unlikely(!p)) 3162c0eae66eSBenny Halevy goto out_overflow; 3163cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 31641da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 31651da177e4SLinus Torvalds } 31663110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 31671da177e4SLinus Torvalds return status; 3168c0eae66eSBenny Halevy out_overflow: 3169c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3170c0eae66eSBenny Halevy return -EIO; 31711da177e4SLinus Torvalds } 31721da177e4SLinus Torvalds 31731da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 31741da177e4SLinus Torvalds { 31758687b63aSAl Viro __be32 *p; 31761da177e4SLinus Torvalds int status = 0; 31771da177e4SLinus Torvalds 31781da177e4SLinus Torvalds *res = 1024; 31791da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 31801da177e4SLinus Torvalds return -EIO; 31811da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 31821da177e4SLinus Torvalds uint64_t maxread; 3183c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3184c0eae66eSBenny Halevy if (unlikely(!p)) 3185c0eae66eSBenny Halevy goto out_overflow; 3186cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 31871da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 31881da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 31891da177e4SLinus Torvalds *res = (uint32_t)maxread; 31901da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 31911da177e4SLinus Torvalds } 31923110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 31931da177e4SLinus Torvalds return status; 3194c0eae66eSBenny Halevy out_overflow: 3195c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3196c0eae66eSBenny Halevy return -EIO; 31971da177e4SLinus Torvalds } 31981da177e4SLinus Torvalds 31991da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32001da177e4SLinus Torvalds { 32018687b63aSAl Viro __be32 *p; 32021da177e4SLinus Torvalds int status = 0; 32031da177e4SLinus Torvalds 32041da177e4SLinus Torvalds *res = 1024; 32051da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 32061da177e4SLinus Torvalds return -EIO; 32071da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 32081da177e4SLinus Torvalds uint64_t maxwrite; 3209c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3210c0eae66eSBenny Halevy if (unlikely(!p)) 3211c0eae66eSBenny Halevy goto out_overflow; 3212cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 32131da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 32141da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 32151da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 32161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 32171da177e4SLinus Torvalds } 32183110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 32191da177e4SLinus Torvalds return status; 3220c0eae66eSBenny Halevy out_overflow: 3221c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3222c0eae66eSBenny Halevy return -EIO; 32231da177e4SLinus Torvalds } 32241da177e4SLinus Torvalds 3225bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 32261da177e4SLinus Torvalds { 3227bca79478STrond Myklebust uint32_t tmp; 32288687b63aSAl Viro __be32 *p; 3229409924e4STrond Myklebust int ret = 0; 32301da177e4SLinus Torvalds 32311da177e4SLinus Torvalds *mode = 0; 32321da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 32331da177e4SLinus Torvalds return -EIO; 32341da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3235c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3236c0eae66eSBenny Halevy if (unlikely(!p)) 3237c0eae66eSBenny Halevy goto out_overflow; 3238cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3239bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 32401da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3241409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 32421da177e4SLinus Torvalds } 32433110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3244409924e4STrond Myklebust return ret; 3245c0eae66eSBenny Halevy out_overflow: 3246c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3247c0eae66eSBenny Halevy return -EIO; 32481da177e4SLinus Torvalds } 32491da177e4SLinus Torvalds 32501da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 32511da177e4SLinus Torvalds { 32528687b63aSAl Viro __be32 *p; 3253409924e4STrond Myklebust int ret = 0; 32541da177e4SLinus Torvalds 32551da177e4SLinus Torvalds *nlink = 1; 32561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 32571da177e4SLinus Torvalds return -EIO; 32581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3259c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3260c0eae66eSBenny Halevy if (unlikely(!p)) 3261c0eae66eSBenny Halevy goto out_overflow; 3262cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 32631da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3264409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 32651da177e4SLinus Torvalds } 32663110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3267409924e4STrond Myklebust return ret; 3268c0eae66eSBenny Halevy out_overflow: 3269c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3270c0eae66eSBenny Halevy return -EIO; 32711da177e4SLinus Torvalds } 32721da177e4SLinus Torvalds 327380e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 327480e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *uid, int may_sleep) 32751da177e4SLinus Torvalds { 32768687b63aSAl Viro uint32_t len; 32778687b63aSAl Viro __be32 *p; 3278409924e4STrond Myklebust int ret = 0; 32791da177e4SLinus Torvalds 32801da177e4SLinus Torvalds *uid = -2; 32811da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 32821da177e4SLinus Torvalds return -EIO; 32831da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3284c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3285c0eae66eSBenny Halevy if (unlikely(!p)) 3286c0eae66eSBenny Halevy goto out_overflow; 3287cccddf4fSBenny Halevy len = be32_to_cpup(p); 3288c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3289c0eae66eSBenny Halevy if (unlikely(!p)) 3290c0eae66eSBenny Halevy goto out_overflow; 329180e52aceSTrond Myklebust if (!may_sleep) { 329280e52aceSTrond Myklebust /* do nothing */ 329380e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3294409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3295409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3296409924e4STrond Myklebust else 32971da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 32983110ff80SHarvey Harrison __func__); 32991da177e4SLinus Torvalds } else 3300fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 33013110ff80SHarvey Harrison __func__, len); 33021da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 33031da177e4SLinus Torvalds } 33043110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3305409924e4STrond Myklebust return ret; 3306c0eae66eSBenny Halevy out_overflow: 3307c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3308c0eae66eSBenny Halevy return -EIO; 33091da177e4SLinus Torvalds } 33101da177e4SLinus Torvalds 331180e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 331280e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *gid, int may_sleep) 33131da177e4SLinus Torvalds { 33148687b63aSAl Viro uint32_t len; 33158687b63aSAl Viro __be32 *p; 3316409924e4STrond Myklebust int ret = 0; 33171da177e4SLinus Torvalds 33181da177e4SLinus Torvalds *gid = -2; 33191da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 33201da177e4SLinus Torvalds return -EIO; 33211da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3322c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3323c0eae66eSBenny Halevy if (unlikely(!p)) 3324c0eae66eSBenny Halevy goto out_overflow; 3325cccddf4fSBenny Halevy len = be32_to_cpup(p); 3326c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3327c0eae66eSBenny Halevy if (unlikely(!p)) 3328c0eae66eSBenny Halevy goto out_overflow; 332980e52aceSTrond Myklebust if (!may_sleep) { 333080e52aceSTrond Myklebust /* do nothing */ 333180e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3332409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3333409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3334409924e4STrond Myklebust else 33351da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 33363110ff80SHarvey Harrison __func__); 33371da177e4SLinus Torvalds } else 3338fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 33393110ff80SHarvey Harrison __func__, len); 33401da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 33411da177e4SLinus Torvalds } 33423110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3343409924e4STrond Myklebust return ret; 3344c0eae66eSBenny Halevy out_overflow: 3345c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3346c0eae66eSBenny Halevy return -EIO; 33471da177e4SLinus Torvalds } 33481da177e4SLinus Torvalds 33491da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 33501da177e4SLinus Torvalds { 33518687b63aSAl Viro uint32_t major = 0, minor = 0; 33528687b63aSAl Viro __be32 *p; 3353409924e4STrond Myklebust int ret = 0; 33541da177e4SLinus Torvalds 33551da177e4SLinus Torvalds *rdev = MKDEV(0,0); 33561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 33571da177e4SLinus Torvalds return -EIO; 33581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 33591da177e4SLinus Torvalds dev_t tmp; 33601da177e4SLinus Torvalds 3361c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3362c0eae66eSBenny Halevy if (unlikely(!p)) 3363c0eae66eSBenny Halevy goto out_overflow; 33646f723f77SBenny Halevy major = be32_to_cpup(p++); 3365cccddf4fSBenny Halevy minor = be32_to_cpup(p); 33661da177e4SLinus Torvalds tmp = MKDEV(major, minor); 33671da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 33681da177e4SLinus Torvalds *rdev = tmp; 33691da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3370409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 33711da177e4SLinus Torvalds } 33723110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3373409924e4STrond Myklebust return ret; 3374c0eae66eSBenny Halevy out_overflow: 3375c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3376c0eae66eSBenny Halevy return -EIO; 33771da177e4SLinus Torvalds } 33781da177e4SLinus Torvalds 33791da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 33801da177e4SLinus Torvalds { 33818687b63aSAl Viro __be32 *p; 33821da177e4SLinus Torvalds int status = 0; 33831da177e4SLinus Torvalds 33841da177e4SLinus Torvalds *res = 0; 33851da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 33861da177e4SLinus Torvalds return -EIO; 33871da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3388c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3389c0eae66eSBenny Halevy if (unlikely(!p)) 3390c0eae66eSBenny Halevy goto out_overflow; 3391cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 33921da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 33931da177e4SLinus Torvalds } 33943110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 33951da177e4SLinus Torvalds return status; 3396c0eae66eSBenny Halevy out_overflow: 3397c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3398c0eae66eSBenny Halevy return -EIO; 33991da177e4SLinus Torvalds } 34001da177e4SLinus Torvalds 34011da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34021da177e4SLinus Torvalds { 34038687b63aSAl Viro __be32 *p; 34041da177e4SLinus Torvalds int status = 0; 34051da177e4SLinus Torvalds 34061da177e4SLinus Torvalds *res = 0; 34071da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 34081da177e4SLinus Torvalds return -EIO; 34091da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3410c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3411c0eae66eSBenny Halevy if (unlikely(!p)) 3412c0eae66eSBenny Halevy goto out_overflow; 3413cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34141da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 34151da177e4SLinus Torvalds } 34163110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 34171da177e4SLinus Torvalds return status; 3418c0eae66eSBenny Halevy out_overflow: 3419c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3420c0eae66eSBenny Halevy return -EIO; 34211da177e4SLinus Torvalds } 34221da177e4SLinus Torvalds 34231da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34241da177e4SLinus Torvalds { 34258687b63aSAl Viro __be32 *p; 34261da177e4SLinus Torvalds int status = 0; 34271da177e4SLinus Torvalds 34281da177e4SLinus Torvalds *res = 0; 34291da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 34301da177e4SLinus Torvalds return -EIO; 34311da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3432c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3433c0eae66eSBenny Halevy if (unlikely(!p)) 3434c0eae66eSBenny Halevy goto out_overflow; 3435cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34361da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 34371da177e4SLinus Torvalds } 34383110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 34391da177e4SLinus Torvalds return status; 3440c0eae66eSBenny Halevy out_overflow: 3441c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3442c0eae66eSBenny Halevy return -EIO; 34431da177e4SLinus Torvalds } 34441da177e4SLinus Torvalds 34451da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 34461da177e4SLinus Torvalds { 34478687b63aSAl Viro __be32 *p; 3448409924e4STrond Myklebust int ret = 0; 34491da177e4SLinus Torvalds 34501da177e4SLinus Torvalds *used = 0; 34511da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 34521da177e4SLinus Torvalds return -EIO; 34531da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3454c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3455c0eae66eSBenny Halevy if (unlikely(!p)) 3456c0eae66eSBenny Halevy goto out_overflow; 3457cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 34581da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3459409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 34601da177e4SLinus Torvalds } 34613110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 34621da177e4SLinus Torvalds (unsigned long long)*used); 3463409924e4STrond Myklebust return ret; 3464c0eae66eSBenny Halevy out_overflow: 3465c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3466c0eae66eSBenny Halevy return -EIO; 34671da177e4SLinus Torvalds } 34681da177e4SLinus Torvalds 34691da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 34701da177e4SLinus Torvalds { 34718687b63aSAl Viro __be32 *p; 34721da177e4SLinus Torvalds uint64_t sec; 34731da177e4SLinus Torvalds uint32_t nsec; 34741da177e4SLinus Torvalds 3475c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3476c0eae66eSBenny Halevy if (unlikely(!p)) 3477c0eae66eSBenny Halevy goto out_overflow; 34783ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3479cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 34801da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 34811da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 34821da177e4SLinus Torvalds return 0; 3483c0eae66eSBenny Halevy out_overflow: 3484c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3485c0eae66eSBenny Halevy return -EIO; 34861da177e4SLinus Torvalds } 34871da177e4SLinus Torvalds 34881da177e4SLinus Torvalds static int decode_attr_time_access(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_ACCESS - 1U))) 34951da177e4SLinus Torvalds return -EIO; 34961da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 34971da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3498409924e4STrond Myklebust if (status == 0) 3499409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 35001da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 35011da177e4SLinus Torvalds } 35023110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 35031da177e4SLinus Torvalds return status; 35041da177e4SLinus Torvalds } 35051da177e4SLinus Torvalds 35061da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 35071da177e4SLinus Torvalds { 35081da177e4SLinus Torvalds int status = 0; 35091da177e4SLinus Torvalds 35101da177e4SLinus Torvalds time->tv_sec = 0; 35111da177e4SLinus Torvalds time->tv_nsec = 0; 35121da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 35131da177e4SLinus Torvalds return -EIO; 35141da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 35151da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3516409924e4STrond Myklebust if (status == 0) 3517409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 35181da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 35191da177e4SLinus Torvalds } 35203110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 35211da177e4SLinus Torvalds return status; 35221da177e4SLinus Torvalds } 35231da177e4SLinus Torvalds 35241da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 35251da177e4SLinus Torvalds { 35261da177e4SLinus Torvalds int status = 0; 35271da177e4SLinus Torvalds 35281da177e4SLinus Torvalds time->tv_sec = 0; 35291da177e4SLinus Torvalds time->tv_nsec = 0; 35301da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 35311da177e4SLinus Torvalds return -EIO; 35321da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 35331da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3534409924e4STrond Myklebust if (status == 0) 3535409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 35361da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 35371da177e4SLinus Torvalds } 35383110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 35391da177e4SLinus Torvalds return status; 35401da177e4SLinus Torvalds } 35411da177e4SLinus Torvalds 35428687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 35431da177e4SLinus Torvalds { 35441da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 35451da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 35461da177e4SLinus Torvalds 35471da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3548fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3549fe82a183SChuck Lever "%u %c %u\n", 35503110ff80SHarvey Harrison __func__, 35511da177e4SLinus Torvalds attrwords << 2, 35521da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 35531da177e4SLinus Torvalds nwords << 2); 35541da177e4SLinus Torvalds return -EIO; 35551da177e4SLinus Torvalds } 35561da177e4SLinus Torvalds return 0; 35571da177e4SLinus Torvalds } 35581da177e4SLinus Torvalds 35591da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35601da177e4SLinus Torvalds { 35618687b63aSAl Viro __be32 *p; 35621da177e4SLinus Torvalds 3563c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3564c0eae66eSBenny Halevy if (unlikely(!p)) 3565c0eae66eSBenny Halevy goto out_overflow; 35666f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 35673ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3568cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 35691da177e4SLinus Torvalds return 0; 3570c0eae66eSBenny Halevy out_overflow: 3571c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3572c0eae66eSBenny Halevy return -EIO; 35731da177e4SLinus Torvalds } 35741da177e4SLinus Torvalds 35751da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 35761da177e4SLinus Torvalds { 35778687b63aSAl Viro __be32 *p; 35781da177e4SLinus Torvalds uint32_t supp, acc; 35791da177e4SLinus Torvalds int status; 35801da177e4SLinus Torvalds 35811da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 35821da177e4SLinus Torvalds if (status) 35831da177e4SLinus Torvalds return status; 3584c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3585c0eae66eSBenny Halevy if (unlikely(!p)) 3586c0eae66eSBenny Halevy goto out_overflow; 35876f723f77SBenny Halevy supp = be32_to_cpup(p++); 3588cccddf4fSBenny Halevy acc = be32_to_cpup(p); 35891da177e4SLinus Torvalds access->supported = supp; 35901da177e4SLinus Torvalds access->access = acc; 35911da177e4SLinus Torvalds return 0; 3592c0eae66eSBenny Halevy out_overflow: 3593c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3594c0eae66eSBenny Halevy return -EIO; 35951da177e4SLinus Torvalds } 35961da177e4SLinus Torvalds 359707d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 35981da177e4SLinus Torvalds { 35998687b63aSAl Viro __be32 *p; 360007d30434SBenny Halevy 360107d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 360207d30434SBenny Halevy if (likely(p)) { 360307d30434SBenny Halevy memcpy(buf, p, len); 360407d30434SBenny Halevy return 0; 360507d30434SBenny Halevy } 360607d30434SBenny Halevy print_overflow_msg(__func__, xdr); 360707d30434SBenny Halevy return -EIO; 360807d30434SBenny Halevy } 360907d30434SBenny Halevy 361007d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 361107d30434SBenny Halevy { 361207d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 36131da177e4SLinus Torvalds } 36141da177e4SLinus Torvalds 36151da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 36161da177e4SLinus Torvalds { 36171da177e4SLinus Torvalds int status; 36181da177e4SLinus Torvalds 36191da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3620c1d51931STrond Myklebust if (status != -EIO) 3621c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 362207d30434SBenny Halevy if (!status) 362307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 36241da177e4SLinus Torvalds return status; 36251da177e4SLinus Torvalds } 36261da177e4SLinus Torvalds 3627db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3628db942bbdSBenny Halevy { 3629db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 36301da177e4SLinus Torvalds } 36311da177e4SLinus Torvalds 36321da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 36331da177e4SLinus Torvalds { 36341da177e4SLinus Torvalds int status; 36351da177e4SLinus Torvalds 36361da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3637db942bbdSBenny Halevy if (!status) 3638db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 36391da177e4SLinus Torvalds return status; 36401da177e4SLinus Torvalds } 36411da177e4SLinus Torvalds 36421da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36431da177e4SLinus Torvalds { 36448687b63aSAl Viro __be32 *p; 36451da177e4SLinus Torvalds uint32_t bmlen; 36461da177e4SLinus Torvalds int status; 36471da177e4SLinus Torvalds 36481da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 36491da177e4SLinus Torvalds if (status) 36501da177e4SLinus Torvalds return status; 36511da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 36521da177e4SLinus Torvalds return status; 3653c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3654c0eae66eSBenny Halevy if (unlikely(!p)) 3655c0eae66eSBenny Halevy goto out_overflow; 3656cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3657c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3658c0eae66eSBenny Halevy if (likely(p)) 36591da177e4SLinus Torvalds return 0; 3660c0eae66eSBenny Halevy out_overflow: 3661c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3662c0eae66eSBenny Halevy return -EIO; 36631da177e4SLinus Torvalds } 36641da177e4SLinus Torvalds 36651da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 36661da177e4SLinus Torvalds { 36678687b63aSAl Viro __be32 *savep; 36686c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 36691da177e4SLinus Torvalds int status; 36701da177e4SLinus Torvalds 36711da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 36721da177e4SLinus Torvalds goto xdr_error; 36731da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 36741da177e4SLinus Torvalds goto xdr_error; 36751da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 36761da177e4SLinus Torvalds goto xdr_error; 36771da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 36781da177e4SLinus Torvalds goto xdr_error; 36791da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 36801da177e4SLinus Torvalds goto xdr_error; 36811da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 36821da177e4SLinus Torvalds goto xdr_error; 36831da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 36841da177e4SLinus Torvalds goto xdr_error; 36851da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36861da177e4SLinus Torvalds xdr_error: 36873110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 36881da177e4SLinus Torvalds return status; 36891da177e4SLinus Torvalds } 36901da177e4SLinus Torvalds 36911da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 36921da177e4SLinus Torvalds { 36938687b63aSAl Viro __be32 *savep; 36946c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 36951da177e4SLinus Torvalds int status; 36961da177e4SLinus Torvalds 36971da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 36981da177e4SLinus Torvalds goto xdr_error; 36991da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 37001da177e4SLinus Torvalds goto xdr_error; 37011da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 37021da177e4SLinus Torvalds goto xdr_error; 37031da177e4SLinus Torvalds 37041da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 37051da177e4SLinus Torvalds goto xdr_error; 37061da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 37071da177e4SLinus Torvalds goto xdr_error; 37081da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 37091da177e4SLinus Torvalds goto xdr_error; 37101da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 37111da177e4SLinus Torvalds goto xdr_error; 37121da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 37131da177e4SLinus Torvalds goto xdr_error; 37141da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 37151da177e4SLinus Torvalds goto xdr_error; 37161da177e4SLinus Torvalds 37171da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 37181da177e4SLinus Torvalds xdr_error: 37193110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 37201da177e4SLinus Torvalds return status; 37211da177e4SLinus Torvalds } 37221da177e4SLinus Torvalds 37231da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 37241da177e4SLinus Torvalds { 37258687b63aSAl Viro __be32 *savep; 37266c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 37271da177e4SLinus Torvalds int status; 37281da177e4SLinus Torvalds 37291da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 37301da177e4SLinus Torvalds goto xdr_error; 37311da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 37321da177e4SLinus Torvalds goto xdr_error; 37331da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 37341da177e4SLinus Torvalds goto xdr_error; 37351da177e4SLinus Torvalds 37361da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 37371da177e4SLinus Torvalds goto xdr_error; 37381da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 37391da177e4SLinus Torvalds goto xdr_error; 37401da177e4SLinus Torvalds 37411da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 37421da177e4SLinus Torvalds xdr_error: 37433110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 37441da177e4SLinus Torvalds return status; 37451da177e4SLinus Torvalds } 37461da177e4SLinus Torvalds 374780e52aceSTrond Myklebust static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 374880e52aceSTrond Myklebust const struct nfs_server *server, int may_sleep) 37491da177e4SLinus Torvalds { 37508687b63aSAl Viro __be32 *savep; 37511da177e4SLinus Torvalds uint32_t attrlen, 37521da177e4SLinus Torvalds bitmap[2] = {0}, 37531da177e4SLinus Torvalds type; 3754bca79478STrond Myklebust int status; 3755bca79478STrond Myklebust umode_t fmode = 0; 375699baf625SManoj Naik uint64_t fileid; 37571da177e4SLinus Torvalds 3758f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3759f26c7a78STrond Myklebust if (status < 0) 37601da177e4SLinus Torvalds goto xdr_error; 37611da177e4SLinus Torvalds 3762f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3763f26c7a78STrond Myklebust if (status < 0) 3764f26c7a78STrond Myklebust goto xdr_error; 3765f26c7a78STrond Myklebust 3766f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3767f26c7a78STrond Myklebust if (status < 0) 37681da177e4SLinus Torvalds goto xdr_error; 37691da177e4SLinus Torvalds 37701da177e4SLinus Torvalds 3771f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3772f26c7a78STrond Myklebust if (status < 0) 37731da177e4SLinus Torvalds goto xdr_error; 3774409924e4STrond Myklebust fattr->mode = 0; 3775409924e4STrond Myklebust if (status != 0) { 3776409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3777409924e4STrond Myklebust fattr->valid |= status; 3778409924e4STrond Myklebust } 37791da177e4SLinus Torvalds 3780f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3781f26c7a78STrond Myklebust if (status < 0) 37821da177e4SLinus Torvalds goto xdr_error; 3783409924e4STrond Myklebust fattr->valid |= status; 3784f26c7a78STrond Myklebust 3785f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3786f26c7a78STrond Myklebust if (status < 0) 37871da177e4SLinus Torvalds goto xdr_error; 3788409924e4STrond Myklebust fattr->valid |= status; 3789f26c7a78STrond Myklebust 3790f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3791f26c7a78STrond Myklebust if (status < 0) 37921da177e4SLinus Torvalds goto xdr_error; 3793409924e4STrond Myklebust fattr->valid |= status; 3794f26c7a78STrond Myklebust 3795f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3796f26c7a78STrond Myklebust if (status < 0) 37971da177e4SLinus Torvalds goto xdr_error; 3798409924e4STrond Myklebust fattr->valid |= status; 3799f26c7a78STrond Myklebust 3800f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 38017aaa0b3bSManoj Naik struct nfs4_fs_locations, 3802f26c7a78STrond Myklebust fattr)); 3803f26c7a78STrond Myklebust if (status < 0) 3804683b57b4STrond Myklebust goto xdr_error; 3805409924e4STrond Myklebust fattr->valid |= status; 3806f26c7a78STrond Myklebust 3807f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3808f26c7a78STrond Myklebust if (status < 0) 38091da177e4SLinus Torvalds goto xdr_error; 3810409924e4STrond Myklebust if (status != 0) { 38111da177e4SLinus Torvalds fattr->mode |= fmode; 3812409924e4STrond Myklebust fattr->valid |= status; 3813409924e4STrond Myklebust } 3814f26c7a78STrond Myklebust 3815f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3816f26c7a78STrond Myklebust if (status < 0) 38171da177e4SLinus Torvalds goto xdr_error; 3818409924e4STrond Myklebust fattr->valid |= status; 3819f26c7a78STrond Myklebust 382080e52aceSTrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, 382180e52aceSTrond Myklebust &fattr->uid, may_sleep); 3822f26c7a78STrond Myklebust if (status < 0) 38231da177e4SLinus Torvalds goto xdr_error; 3824409924e4STrond Myklebust fattr->valid |= status; 3825f26c7a78STrond Myklebust 382680e52aceSTrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, 382780e52aceSTrond Myklebust &fattr->gid, may_sleep); 3828f26c7a78STrond Myklebust if (status < 0) 38291da177e4SLinus Torvalds goto xdr_error; 3830409924e4STrond Myklebust fattr->valid |= status; 3831f26c7a78STrond Myklebust 3832f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3833f26c7a78STrond Myklebust if (status < 0) 38341da177e4SLinus Torvalds goto xdr_error; 3835409924e4STrond Myklebust fattr->valid |= status; 3836f26c7a78STrond Myklebust 3837f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3838f26c7a78STrond Myklebust if (status < 0) 38391da177e4SLinus Torvalds goto xdr_error; 3840409924e4STrond Myklebust fattr->valid |= status; 3841f26c7a78STrond Myklebust 3842f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3843f26c7a78STrond Myklebust if (status < 0) 38441da177e4SLinus Torvalds goto xdr_error; 3845409924e4STrond Myklebust fattr->valid |= status; 3846f26c7a78STrond Myklebust 3847f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3848f26c7a78STrond Myklebust if (status < 0) 38491da177e4SLinus Torvalds goto xdr_error; 3850409924e4STrond Myklebust fattr->valid |= status; 3851f26c7a78STrond Myklebust 3852f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3853f26c7a78STrond Myklebust if (status < 0) 38541da177e4SLinus Torvalds goto xdr_error; 3855409924e4STrond Myklebust fattr->valid |= status; 3856f26c7a78STrond Myklebust 3857f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3858f26c7a78STrond Myklebust if (status < 0) 385999baf625SManoj Naik goto xdr_error; 3860409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 386199baf625SManoj Naik fattr->fileid = fileid; 3862409924e4STrond Myklebust fattr->valid |= status; 3863409924e4STrond Myklebust } 3864f26c7a78STrond Myklebust 3865f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 38661da177e4SLinus Torvalds xdr_error: 38673110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 38681da177e4SLinus Torvalds return status; 38691da177e4SLinus Torvalds } 38701da177e4SLinus Torvalds 38711da177e4SLinus Torvalds 38721da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 38731da177e4SLinus Torvalds { 38748687b63aSAl Viro __be32 *savep; 38751da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 38761da177e4SLinus Torvalds int status; 38771da177e4SLinus Torvalds 38781da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38791da177e4SLinus Torvalds goto xdr_error; 38801da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38811da177e4SLinus Torvalds goto xdr_error; 38821da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38831da177e4SLinus Torvalds goto xdr_error; 38841da177e4SLinus Torvalds 38851da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 38861da177e4SLinus Torvalds 38871da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 38881da177e4SLinus Torvalds goto xdr_error; 38891da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 38901da177e4SLinus Torvalds goto xdr_error; 38911da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 38921da177e4SLinus Torvalds goto xdr_error; 38931da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 38941da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 38951da177e4SLinus Torvalds goto xdr_error; 38961da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 38971da177e4SLinus Torvalds 38981da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38991da177e4SLinus Torvalds xdr_error: 39003110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 39011da177e4SLinus Torvalds return status; 39021da177e4SLinus Torvalds } 39031da177e4SLinus Torvalds 39041da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 39051da177e4SLinus Torvalds { 39068687b63aSAl Viro __be32 *p; 39071da177e4SLinus Torvalds uint32_t len; 39081da177e4SLinus Torvalds int status; 39091da177e4SLinus Torvalds 39109936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 39119936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 39129936781dSTrond Myklebust 39131da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 39141da177e4SLinus Torvalds if (status) 39151da177e4SLinus Torvalds return status; 39161da177e4SLinus Torvalds 3917c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3918c0eae66eSBenny Halevy if (unlikely(!p)) 3919c0eae66eSBenny Halevy goto out_overflow; 3920cccddf4fSBenny Halevy len = be32_to_cpup(p); 39211da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 39221da177e4SLinus Torvalds return -EIO; 39231da177e4SLinus Torvalds fh->size = len; 3924c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3925c0eae66eSBenny Halevy if (unlikely(!p)) 3926c0eae66eSBenny Halevy goto out_overflow; 392799398d06SBenny Halevy memcpy(fh->data, p, len); 39281da177e4SLinus Torvalds return 0; 3929c0eae66eSBenny Halevy out_overflow: 3930c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3931c0eae66eSBenny Halevy return -EIO; 39321da177e4SLinus Torvalds } 39331da177e4SLinus Torvalds 39341da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 39351da177e4SLinus Torvalds { 39361da177e4SLinus Torvalds int status; 39371da177e4SLinus Torvalds 39381da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 39391da177e4SLinus Torvalds if (status) 39401da177e4SLinus Torvalds return status; 39411da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 39421da177e4SLinus Torvalds } 39431da177e4SLinus Torvalds 39441da177e4SLinus Torvalds /* 39451da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 39461da177e4SLinus Torvalds */ 3947911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 39481da177e4SLinus Torvalds { 3949911d1aafSTrond Myklebust uint64_t offset, length, clientid; 39508687b63aSAl Viro __be32 *p; 3951911d1aafSTrond Myklebust uint32_t namelen, type; 39521da177e4SLinus Torvalds 3953c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 32); 3954c0eae66eSBenny Halevy if (unlikely(!p)) 3955c0eae66eSBenny Halevy goto out_overflow; 39563ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &offset); 39573ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 39586f723f77SBenny Halevy type = be32_to_cpup(p++); 3959911d1aafSTrond Myklebust if (fl != NULL) { 3960911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3961911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3962911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3963911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3964911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3965911d1aafSTrond Myklebust if (type & 1) 3966911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3967911d1aafSTrond Myklebust fl->fl_pid = 0; 3968911d1aafSTrond Myklebust } 39693ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &clientid); 3970cccddf4fSBenny Halevy namelen = be32_to_cpup(p); 3971c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, namelen); 3972c0eae66eSBenny Halevy if (likely(p)) 39731da177e4SLinus Torvalds return -NFS4ERR_DENIED; 3974c0eae66eSBenny Halevy out_overflow: 3975c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3976c0eae66eSBenny Halevy return -EIO; 39771da177e4SLinus Torvalds } 39781da177e4SLinus Torvalds 3979911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 39801da177e4SLinus Torvalds { 39811da177e4SLinus Torvalds int status; 39821da177e4SLinus Torvalds 39831da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3984c1d51931STrond Myklebust if (status == -EIO) 3985c1d51931STrond Myklebust goto out; 39861da177e4SLinus Torvalds if (status == 0) { 398707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 398807d30434SBenny Halevy if (unlikely(status)) 398907d30434SBenny Halevy goto out; 39901da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3991c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3992c1d51931STrond Myklebust if (res->open_seqid != NULL) 3993c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3994c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3995c1d51931STrond Myklebust out: 39961da177e4SLinus Torvalds return status; 39971da177e4SLinus Torvalds } 39981da177e4SLinus Torvalds 3999911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 40001da177e4SLinus Torvalds { 40011da177e4SLinus Torvalds int status; 40021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 40031da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4004911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 40051da177e4SLinus Torvalds return status; 40061da177e4SLinus Torvalds } 40071da177e4SLinus Torvalds 4008911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 40091da177e4SLinus Torvalds { 40101da177e4SLinus Torvalds int status; 40111da177e4SLinus Torvalds 40121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4013c1d51931STrond Myklebust if (status != -EIO) 4014c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 401507d30434SBenny Halevy if (status == 0) 401607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 40171da177e4SLinus Torvalds return status; 40181da177e4SLinus Torvalds } 40191da177e4SLinus Torvalds 4020d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4021d3c7b7ccSTrond Myklebust { 4022d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4023d3c7b7ccSTrond Myklebust } 4024d3c7b7ccSTrond Myklebust 40251da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 40261da177e4SLinus Torvalds { 40271da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 40281da177e4SLinus Torvalds } 40291da177e4SLinus Torvalds 40301da177e4SLinus Torvalds /* This is too sick! */ 40311da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 40321da177e4SLinus Torvalds { 40338687b63aSAl Viro __be32 *p; 40341da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 40351da177e4SLinus Torvalds 4036c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4037c0eae66eSBenny Halevy if (unlikely(!p)) 4038c0eae66eSBenny Halevy goto out_overflow; 40396f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 40401da177e4SLinus Torvalds switch (limit_type) { 40411da177e4SLinus Torvalds case 1: 4042cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 40431da177e4SLinus Torvalds break; 40441da177e4SLinus Torvalds case 2: 40456f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4046cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 40471da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 40481da177e4SLinus Torvalds } 40491da177e4SLinus Torvalds return 0; 4050c0eae66eSBenny Halevy out_overflow: 4051c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4052c0eae66eSBenny Halevy return -EIO; 40531da177e4SLinus Torvalds } 40541da177e4SLinus Torvalds 40551da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 40561da177e4SLinus Torvalds { 40578687b63aSAl Viro __be32 *p; 40581da177e4SLinus Torvalds uint32_t delegation_type; 405907d30434SBenny Halevy int status; 40601da177e4SLinus Torvalds 4061c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4062c0eae66eSBenny Halevy if (unlikely(!p)) 4063c0eae66eSBenny Halevy goto out_overflow; 4064cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 40651da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 40661da177e4SLinus Torvalds res->delegation_type = 0; 40671da177e4SLinus Torvalds return 0; 40681da177e4SLinus Torvalds } 406907d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 407007d30434SBenny Halevy if (unlikely(status)) 407107d30434SBenny Halevy return status; 4072c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4073c0eae66eSBenny Halevy if (unlikely(!p)) 4074c0eae66eSBenny Halevy goto out_overflow; 4075cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 407605d564feSAndy Adamson 40771da177e4SLinus Torvalds switch (delegation_type) { 40781da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 40791da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 40801da177e4SLinus Torvalds break; 40811da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 40821da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 40831da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 40841da177e4SLinus Torvalds return -EIO; 40851da177e4SLinus Torvalds } 40867539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4087c0eae66eSBenny Halevy out_overflow: 4088c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4089c0eae66eSBenny Halevy return -EIO; 40901da177e4SLinus Torvalds } 40911da177e4SLinus Torvalds 40921da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 40931da177e4SLinus Torvalds { 40948687b63aSAl Viro __be32 *p; 4095aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 40961da177e4SLinus Torvalds int status; 40971da177e4SLinus Torvalds 40981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4099c1d51931STrond Myklebust if (status != -EIO) 4100c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 410107d30434SBenny Halevy if (!status) 410207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 410307d30434SBenny Halevy if (unlikely(status)) 41041da177e4SLinus Torvalds return status; 41051da177e4SLinus Torvalds 41061da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 41071da177e4SLinus Torvalds 4108c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4109c0eae66eSBenny Halevy if (unlikely(!p)) 4110c0eae66eSBenny Halevy goto out_overflow; 41116f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4112cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 41131da177e4SLinus Torvalds if (bmlen > 10) 41141da177e4SLinus Torvalds goto xdr_error; 41151da177e4SLinus Torvalds 4116c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4117c0eae66eSBenny Halevy if (unlikely(!p)) 4118c0eae66eSBenny Halevy goto out_overflow; 4119aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4120aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 41216f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4122aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4123aa53ed54SJeff Layton res->attrset[i] = 0; 4124aa53ed54SJeff Layton 41251da177e4SLinus Torvalds return decode_delegation(xdr, res); 41261da177e4SLinus Torvalds xdr_error: 41273110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 41281da177e4SLinus Torvalds return -EIO; 4129c0eae66eSBenny Halevy out_overflow: 4130c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4131c0eae66eSBenny Halevy return -EIO; 41321da177e4SLinus Torvalds } 41331da177e4SLinus Torvalds 41341da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 41351da177e4SLinus Torvalds { 41361da177e4SLinus Torvalds int status; 41371da177e4SLinus Torvalds 41381da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4139c1d51931STrond Myklebust if (status != -EIO) 4140c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 414107d30434SBenny Halevy if (!status) 414207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41431da177e4SLinus Torvalds return status; 41441da177e4SLinus Torvalds } 41451da177e4SLinus Torvalds 41461da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 41471da177e4SLinus Torvalds { 41481da177e4SLinus Torvalds int status; 41491da177e4SLinus Torvalds 41501da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4151c1d51931STrond Myklebust if (status != -EIO) 4152c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 415307d30434SBenny Halevy if (!status) 415407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41551da177e4SLinus Torvalds return status; 41561da177e4SLinus Torvalds } 41571da177e4SLinus Torvalds 41581da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 41591da177e4SLinus Torvalds { 41601da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 41611da177e4SLinus Torvalds } 41621da177e4SLinus Torvalds 41631da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 41641da177e4SLinus Torvalds { 41651da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 41661da177e4SLinus Torvalds } 41671da177e4SLinus Torvalds 41681da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 41691da177e4SLinus Torvalds { 41701da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 41718687b63aSAl Viro __be32 *p; 41721da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 41731da177e4SLinus Torvalds int status; 41741da177e4SLinus Torvalds 41751da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 41761da177e4SLinus Torvalds if (status) 41771da177e4SLinus Torvalds return status; 4178c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4179c0eae66eSBenny Halevy if (unlikely(!p)) 4180c0eae66eSBenny Halevy goto out_overflow; 41816f723f77SBenny Halevy eof = be32_to_cpup(p++); 4182cccddf4fSBenny Halevy count = be32_to_cpup(p); 41831da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 41841da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 41851da177e4SLinus Torvalds if (count > recvd) { 4186fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 41871da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 41881da177e4SLinus Torvalds count = recvd; 41891da177e4SLinus Torvalds eof = 0; 41901da177e4SLinus Torvalds } 41911da177e4SLinus Torvalds xdr_read_pages(xdr, count); 41921da177e4SLinus Torvalds res->eof = eof; 41931da177e4SLinus Torvalds res->count = count; 41941da177e4SLinus Torvalds return 0; 4195c0eae66eSBenny Halevy out_overflow: 4196c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4197c0eae66eSBenny Halevy return -EIO; 41981da177e4SLinus Torvalds } 41991da177e4SLinus Torvalds 42001da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 42011da177e4SLinus Torvalds { 42021da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 42031da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 42041da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4205bcecff77SChuck Lever size_t hdrlen; 4206bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 42078687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 42087bda2cdfSJeff Layton unsigned int nr = 0; 4209bcecff77SChuck Lever int status; 42101da177e4SLinus Torvalds 42111da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4212db942bbdSBenny Halevy if (!status) 4213db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4214db942bbdSBenny Halevy if (unlikely(status)) 42151da177e4SLinus Torvalds return status; 421644109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 421744109241SFred Isaman __func__, 4218eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4219eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4220eadf4598STrond Myklebust 42211da177e4SLinus Torvalds 4222db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 42231da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 42241da177e4SLinus Torvalds if (pglen > recvd) 42251da177e4SLinus Torvalds pglen = recvd; 42261da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 42271da177e4SLinus Torvalds 42281da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 42298687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 4230e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 42311da177e4SLinus Torvalds entry = p; 42327bda2cdfSJeff Layton 42337bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 42347bda2cdfSJeff Layton if ((entry + 1) > end) 42357bda2cdfSJeff Layton goto short_pkt; 42367bda2cdfSJeff Layton 42377bda2cdfSJeff Layton for (; *p++; nr++) { 4238bcecff77SChuck Lever u32 len, attrlen, xlen; 4239e8896495SDavid Howells if (end - p < 3) 42401da177e4SLinus Torvalds goto short_pkt; 4241eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 42421da177e4SLinus Torvalds p += 2; /* cookie */ 42431da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 42441da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 4245fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 4246fe82a183SChuck Lever len); 42471da177e4SLinus Torvalds goto err_unmap; 42481da177e4SLinus Torvalds } 4249e8896495SDavid Howells xlen = XDR_QUADLEN(len); 4250e8896495SDavid Howells if (end - p < xlen + 1) 4251e8896495SDavid Howells goto short_pkt; 4252eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 4253e8896495SDavid Howells p += xlen; 42541da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 4255e8896495SDavid Howells if (end - p < len + 1) 4256e8896495SDavid Howells goto short_pkt; 42571da177e4SLinus Torvalds p += len; 42581da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 4259e8896495SDavid Howells if (end - p < attrlen + 2) 42601da177e4SLinus Torvalds goto short_pkt; 4261e8896495SDavid Howells p += attrlen; /* attributes */ 42621da177e4SLinus Torvalds entry = p; 42631da177e4SLinus Torvalds } 42647bda2cdfSJeff Layton /* 42657bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 42667bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 42677bda2cdfSJeff Layton * those, just set the EOF marker. 42687bda2cdfSJeff Layton */ 42697bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 42707bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 42717bda2cdfSJeff Layton entry[1] = 1; 42727bda2cdfSJeff Layton } 42731da177e4SLinus Torvalds out: 42741da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 42751da177e4SLinus Torvalds return 0; 42761da177e4SLinus Torvalds short_pkt: 42777bda2cdfSJeff Layton /* 42787bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 42797bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 42807bda2cdfSJeff Layton * response and return what we have so far. If there are no 42817bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 42827bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 42837bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 42847bda2cdfSJeff Layton * readdir starting at the last cookie. 42857bda2cdfSJeff Layton */ 42863110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 42871da177e4SLinus Torvalds entry[0] = entry[1] = 0; 42887bda2cdfSJeff Layton if (nr) 42891da177e4SLinus Torvalds goto out; 42901da177e4SLinus Torvalds err_unmap: 42911da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 42921da177e4SLinus Torvalds return -errno_NFSERR_IO; 42931da177e4SLinus Torvalds } 42941da177e4SLinus Torvalds 42951da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 42961da177e4SLinus Torvalds { 42971da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 42981da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4299bcecff77SChuck Lever size_t hdrlen; 4300bcecff77SChuck Lever u32 len, recvd; 43018687b63aSAl Viro __be32 *p; 43021da177e4SLinus Torvalds char *kaddr; 43031da177e4SLinus Torvalds int status; 43041da177e4SLinus Torvalds 43051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 43061da177e4SLinus Torvalds if (status) 43071da177e4SLinus Torvalds return status; 43081da177e4SLinus Torvalds 43091da177e4SLinus Torvalds /* Convert length of symlink */ 4310c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4311c0eae66eSBenny Halevy if (unlikely(!p)) 4312c0eae66eSBenny Halevy goto out_overflow; 4313cccddf4fSBenny Halevy len = be32_to_cpup(p); 43141da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4315fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 43161da177e4SLinus Torvalds return -ENAMETOOLONG; 43171da177e4SLinus Torvalds } 43181da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 43191da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 43201da177e4SLinus Torvalds if (recvd < len) { 4321fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 43221da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 43231da177e4SLinus Torvalds return -EIO; 43241da177e4SLinus Torvalds } 43251da177e4SLinus Torvalds xdr_read_pages(xdr, len); 43261da177e4SLinus Torvalds /* 43271da177e4SLinus Torvalds * The XDR encode routine has set things up so that 43281da177e4SLinus Torvalds * the link text will be copied directly into the 43291da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 43301da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 43311da177e4SLinus Torvalds * null-termination). 43321da177e4SLinus Torvalds */ 43331da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 43341da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 43351da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 43361da177e4SLinus Torvalds return 0; 4337c0eae66eSBenny Halevy out_overflow: 4338c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4339c0eae66eSBenny Halevy return -EIO; 43401da177e4SLinus Torvalds } 43411da177e4SLinus Torvalds 43421da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43431da177e4SLinus Torvalds { 43441da177e4SLinus Torvalds int status; 43451da177e4SLinus Torvalds 43461da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 43471da177e4SLinus Torvalds if (status) 43481da177e4SLinus Torvalds goto out; 43491da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 43501da177e4SLinus Torvalds out: 43511da177e4SLinus Torvalds return status; 43521da177e4SLinus Torvalds } 43531da177e4SLinus Torvalds 43541da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 43551da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 43561da177e4SLinus Torvalds { 43571da177e4SLinus Torvalds int status; 43581da177e4SLinus Torvalds 43591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 43601da177e4SLinus Torvalds if (status) 43611da177e4SLinus Torvalds goto out; 43621da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 43631da177e4SLinus Torvalds goto out; 43641da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 43651da177e4SLinus Torvalds out: 43661da177e4SLinus Torvalds return status; 43671da177e4SLinus Torvalds } 43681da177e4SLinus Torvalds 43691da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 43701da177e4SLinus Torvalds { 43711da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 43721da177e4SLinus Torvalds } 43731da177e4SLinus Torvalds 437456ae19f3STrond Myklebust static int 437556ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 437656ae19f3STrond Myklebust { 437756ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 437856ae19f3STrond Myklebust } 437956ae19f3STrond Myklebust 4380029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4381029d105eSJ. Bruce Fields size_t *acl_len) 4382029d105eSJ. Bruce Fields { 43838687b63aSAl Viro __be32 *savep; 4384029d105eSJ. Bruce Fields uint32_t attrlen, 4385029d105eSJ. Bruce Fields bitmap[2] = {0}; 4386029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4387029d105eSJ. Bruce Fields int status; 4388029d105eSJ. Bruce Fields 4389029d105eSJ. Bruce Fields *acl_len = 0; 4390029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4391029d105eSJ. Bruce Fields goto out; 4392029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4393029d105eSJ. Bruce Fields goto out; 4394029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4395029d105eSJ. Bruce Fields goto out; 4396029d105eSJ. Bruce Fields 4397029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4398029d105eSJ. Bruce Fields return -EIO; 4399029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4400bcecff77SChuck Lever size_t hdrlen; 4401bcecff77SChuck Lever u32 recvd; 4402029d105eSJ. Bruce Fields 4403029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4404029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4405029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4406029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4407029d105eSJ. Bruce Fields if (attrlen > recvd) { 4408fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4409029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4410029d105eSJ. Bruce Fields attrlen, recvd); 4411029d105eSJ. Bruce Fields return -EINVAL; 4412029d105eSJ. Bruce Fields } 4413029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4414029d105eSJ. Bruce Fields *acl_len = attrlen; 44158c233cf9SJ. Bruce Fields } else 44168c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4417029d105eSJ. Bruce Fields 4418029d105eSJ. Bruce Fields out: 4419029d105eSJ. Bruce Fields return status; 4420029d105eSJ. Bruce Fields } 4421029d105eSJ. Bruce Fields 44221da177e4SLinus Torvalds static int 44231da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 44241da177e4SLinus Torvalds { 44251da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 44261da177e4SLinus Torvalds } 44271da177e4SLinus Torvalds 44289e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 44291da177e4SLinus Torvalds { 44308687b63aSAl Viro __be32 *p; 44311da177e4SLinus Torvalds uint32_t bmlen; 44321da177e4SLinus Torvalds int status; 44331da177e4SLinus Torvalds 44341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 44351da177e4SLinus Torvalds if (status) 44361da177e4SLinus Torvalds return status; 4437c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4438c0eae66eSBenny Halevy if (unlikely(!p)) 4439c0eae66eSBenny Halevy goto out_overflow; 4440cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4441c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4442c0eae66eSBenny Halevy if (likely(p)) 44431da177e4SLinus Torvalds return 0; 4444c0eae66eSBenny Halevy out_overflow: 4445c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4446c0eae66eSBenny Halevy return -EIO; 44471da177e4SLinus Torvalds } 44481da177e4SLinus Torvalds 4449bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 44501da177e4SLinus Torvalds { 44518687b63aSAl Viro __be32 *p; 44521da177e4SLinus Torvalds uint32_t opnum; 44531da177e4SLinus Torvalds int32_t nfserr; 44541da177e4SLinus Torvalds 4455c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4456c0eae66eSBenny Halevy if (unlikely(!p)) 4457c0eae66eSBenny Halevy goto out_overflow; 44586f723f77SBenny Halevy opnum = be32_to_cpup(p++); 44591da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4460fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 44611da177e4SLinus Torvalds " %d\n", opnum); 44621da177e4SLinus Torvalds return -EIO; 44631da177e4SLinus Torvalds } 4464cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 44651da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4466c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4467c0eae66eSBenny Halevy if (unlikely(!p)) 4468c0eae66eSBenny Halevy goto out_overflow; 4469bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 4470bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 44711da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 44721da177e4SLinus Torvalds uint32_t len; 44731da177e4SLinus Torvalds 44741da177e4SLinus Torvalds /* skip netid string */ 4475c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4476c0eae66eSBenny Halevy if (unlikely(!p)) 4477c0eae66eSBenny Halevy goto out_overflow; 4478cccddf4fSBenny Halevy len = be32_to_cpup(p); 4479c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4480c0eae66eSBenny Halevy if (unlikely(!p)) 4481c0eae66eSBenny Halevy goto out_overflow; 44821da177e4SLinus Torvalds 44831da177e4SLinus Torvalds /* skip uaddr string */ 4484c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4485c0eae66eSBenny Halevy if (unlikely(!p)) 4486c0eae66eSBenny Halevy goto out_overflow; 4487cccddf4fSBenny Halevy len = be32_to_cpup(p); 4488c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4489c0eae66eSBenny Halevy if (unlikely(!p)) 4490c0eae66eSBenny Halevy goto out_overflow; 44911da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 44921da177e4SLinus Torvalds } else 4493856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 44941da177e4SLinus Torvalds 44951da177e4SLinus Torvalds return 0; 4496c0eae66eSBenny Halevy out_overflow: 4497c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4498c0eae66eSBenny Halevy return -EIO; 44991da177e4SLinus Torvalds } 45001da177e4SLinus Torvalds 45011da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 45021da177e4SLinus Torvalds { 45031da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 45041da177e4SLinus Torvalds } 45051da177e4SLinus Torvalds 45061da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 45071da177e4SLinus Torvalds { 45088687b63aSAl Viro __be32 *p; 45091da177e4SLinus Torvalds int status; 45101da177e4SLinus Torvalds 45111da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 45121da177e4SLinus Torvalds if (status) 45131da177e4SLinus Torvalds return status; 45141da177e4SLinus Torvalds 4515c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4516c0eae66eSBenny Halevy if (unlikely(!p)) 4517c0eae66eSBenny Halevy goto out_overflow; 45186f723f77SBenny Halevy res->count = be32_to_cpup(p++); 45196f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 452099398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 45211da177e4SLinus Torvalds return 0; 4522c0eae66eSBenny Halevy out_overflow: 4523c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4524c0eae66eSBenny Halevy return -EIO; 45251da177e4SLinus Torvalds } 45261da177e4SLinus Torvalds 45271da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 45281da177e4SLinus Torvalds { 45291da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 45301da177e4SLinus Torvalds } 45311da177e4SLinus Torvalds 453299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 453399fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 453499fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 453599fe60d0SBenny Halevy { 453699fe60d0SBenny Halevy __be32 *p; 453799fe60d0SBenny Halevy uint32_t dummy; 45382460ba57SBenny Halevy char *dummy_str; 453999fe60d0SBenny Halevy int status; 454099fe60d0SBenny Halevy struct nfs_client *clp = res->client; 454199fe60d0SBenny Halevy 454299fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 454399fe60d0SBenny Halevy if (status) 454499fe60d0SBenny Halevy return status; 454599fe60d0SBenny Halevy 4546c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4547c0eae66eSBenny Halevy if (unlikely(!p)) 4548c0eae66eSBenny Halevy goto out_overflow; 4549cccddf4fSBenny Halevy xdr_decode_hyper(p, &clp->cl_ex_clid); 4550c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4551c0eae66eSBenny Halevy if (unlikely(!p)) 4552c0eae66eSBenny Halevy goto out_overflow; 45536f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 45546f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 455599fe60d0SBenny Halevy 455699fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4557cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 455899fe60d0SBenny Halevy if (dummy != SP4_NONE) 455999fe60d0SBenny Halevy return -EIO; 456099fe60d0SBenny Halevy 456199fe60d0SBenny Halevy /* Throw away minor_id */ 4562c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4563c0eae66eSBenny Halevy if (unlikely(!p)) 4564c0eae66eSBenny Halevy goto out_overflow; 456599fe60d0SBenny Halevy 456699fe60d0SBenny Halevy /* Throw away Major id */ 45672460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45682460ba57SBenny Halevy if (unlikely(status)) 45692460ba57SBenny Halevy return status; 457099fe60d0SBenny Halevy 457199fe60d0SBenny Halevy /* Throw away server_scope */ 45722460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45732460ba57SBenny Halevy if (unlikely(status)) 45742460ba57SBenny Halevy return status; 457599fe60d0SBenny Halevy 457699fe60d0SBenny Halevy /* Throw away Implementation id array */ 45772460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45782460ba57SBenny Halevy if (unlikely(status)) 45792460ba57SBenny Halevy return status; 458099fe60d0SBenny Halevy 458199fe60d0SBenny Halevy return 0; 4582c0eae66eSBenny Halevy out_overflow: 4583c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4584c0eae66eSBenny Halevy return -EIO; 458599fe60d0SBenny Halevy } 4586fc931582SAndy Adamson 4587fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4588fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4589fc931582SAndy Adamson { 4590fc931582SAndy Adamson __be32 *p; 4591fc931582SAndy Adamson u32 nr_attrs; 4592fc931582SAndy Adamson 4593c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4594c0eae66eSBenny Halevy if (unlikely(!p)) 4595c0eae66eSBenny Halevy goto out_overflow; 45966f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 45976f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 45986f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 45996f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 46006f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 46016f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4602cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4603fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4604fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4605fc931582SAndy Adamson __func__, nr_attrs); 4606fc931582SAndy Adamson return -EINVAL; 4607fc931582SAndy Adamson } 4608c0eae66eSBenny Halevy if (nr_attrs == 1) { 4609c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4610c0eae66eSBenny Halevy if (unlikely(!p)) 4611c0eae66eSBenny Halevy goto out_overflow; 4612c0eae66eSBenny Halevy } 4613fc931582SAndy Adamson return 0; 4614c0eae66eSBenny Halevy out_overflow: 4615c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4616c0eae66eSBenny Halevy return -EIO; 4617fc931582SAndy Adamson } 4618fc931582SAndy Adamson 4619e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4620e78291e4SBenny Halevy { 4621e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4622fc931582SAndy Adamson } 4623fc931582SAndy Adamson 4624fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4625fc931582SAndy Adamson struct nfs41_create_session_res *res) 4626fc931582SAndy Adamson { 4627fc931582SAndy Adamson __be32 *p; 4628fc931582SAndy Adamson int status; 4629fc931582SAndy Adamson struct nfs_client *clp = res->client; 4630fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4631fc931582SAndy Adamson 4632fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4633e78291e4SBenny Halevy if (!status) 4634e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4635e78291e4SBenny Halevy if (unlikely(status)) 4636fc931582SAndy Adamson return status; 4637fc931582SAndy Adamson 4638fc931582SAndy Adamson /* seqid, flags */ 4639c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4640c0eae66eSBenny Halevy if (unlikely(!p)) 4641c0eae66eSBenny Halevy goto out_overflow; 46426f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4643cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4644fc931582SAndy Adamson 4645fc931582SAndy Adamson /* Channel attributes */ 4646fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4647fc931582SAndy Adamson if (!status) 4648fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4649fc931582SAndy Adamson return status; 4650c0eae66eSBenny Halevy out_overflow: 4651c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4652c0eae66eSBenny Halevy return -EIO; 4653fc931582SAndy Adamson } 46540f3e66c6SAndy Adamson 46550f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 46560f3e66c6SAndy Adamson { 46570f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 46580f3e66c6SAndy Adamson } 465918019753SRicardo Labiaga 466018019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 466118019753SRicardo Labiaga { 466218019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 466318019753SRicardo Labiaga } 466499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 466599fe60d0SBenny Halevy 46669b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 46679b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 46689b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 46699b7b9fccSAndy Adamson { 46709b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4671fc01cea9SAndy Adamson struct nfs4_slot *slot; 4672fc01cea9SAndy Adamson struct nfs4_sessionid id; 4673fc01cea9SAndy Adamson u32 dummy; 4674fc01cea9SAndy Adamson int status; 4675fc01cea9SAndy Adamson __be32 *p; 4676fc01cea9SAndy Adamson 46779b7b9fccSAndy Adamson if (!res->sr_session) 46789b7b9fccSAndy Adamson return 0; 46799b7b9fccSAndy Adamson 4680fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4681e78291e4SBenny Halevy if (!status) 4682e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 4683e78291e4SBenny Halevy if (unlikely(status)) 4684fc01cea9SAndy Adamson goto out_err; 46859b7b9fccSAndy Adamson 4686fc01cea9SAndy Adamson /* 4687fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4688fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4689fc01cea9SAndy Adamson */ 4690fdcb4577STrond Myklebust status = -EREMOTEIO; 4691fc01cea9SAndy Adamson 4692fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4693fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4694fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4695fc01cea9SAndy Adamson goto out_err; 4696fc01cea9SAndy Adamson } 4697e78291e4SBenny Halevy 4698c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4699c0eae66eSBenny Halevy if (unlikely(!p)) 4700c0eae66eSBenny Halevy goto out_overflow; 4701e78291e4SBenny Halevy 4702fc01cea9SAndy Adamson /* seqid */ 4703e78291e4SBenny Halevy slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; 47046f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4705fc01cea9SAndy Adamson if (dummy != slot->seq_nr) { 4706fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4707fc01cea9SAndy Adamson goto out_err; 4708fc01cea9SAndy Adamson } 4709fc01cea9SAndy Adamson /* slot id */ 47106f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4711fc01cea9SAndy Adamson if (dummy != res->sr_slotid) { 4712fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4713fc01cea9SAndy Adamson goto out_err; 4714fc01cea9SAndy Adamson } 4715fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 47166f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4717fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 47186f723f77SBenny Halevy dummy = be32_to_cpup(p++); 47190629e370SAlexandros Batsakis /* result flags */ 47200629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 4721fc01cea9SAndy Adamson status = 0; 4722fc01cea9SAndy Adamson out_err: 4723fc01cea9SAndy Adamson res->sr_status = status; 4724fc01cea9SAndy Adamson return status; 4725c0eae66eSBenny Halevy out_overflow: 4726c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4727c0eae66eSBenny Halevy status = -EIO; 4728c0eae66eSBenny Halevy goto out_err; 4729fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 47309b7b9fccSAndy Adamson return 0; 4731fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 47329b7b9fccSAndy Adamson } 47339b7b9fccSAndy Adamson 47341da177e4SLinus Torvalds /* 473549c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 473649c2559eSBenny Halevy */ 473749c2559eSBenny Halevy 473849c2559eSBenny Halevy /* 47391da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 47401da177e4SLinus Torvalds */ 47418687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 47421da177e4SLinus Torvalds { 47431da177e4SLinus Torvalds struct xdr_stream xdr; 47441da177e4SLinus Torvalds struct compound_hdr hdr; 47451da177e4SLinus Torvalds int status; 47461da177e4SLinus Torvalds 47471da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47481da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47491da177e4SLinus Torvalds if (status) 47501da177e4SLinus Torvalds goto out; 47519b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47529b7b9fccSAndy Adamson if (status) 47539b7b9fccSAndy Adamson goto out; 47541da177e4SLinus Torvalds status = decode_putfh(&xdr); 47551da177e4SLinus Torvalds if (status) 47561da177e4SLinus Torvalds goto out; 47571da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4758516a6af6STrond Myklebust if (status != 0) 4759516a6af6STrond Myklebust goto out; 476080e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 476180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 47621da177e4SLinus Torvalds out: 47631da177e4SLinus Torvalds return status; 47641da177e4SLinus Torvalds } 47651da177e4SLinus Torvalds 47661da177e4SLinus Torvalds /* 47671da177e4SLinus Torvalds * Decode ACCESS response 47681da177e4SLinus Torvalds */ 47698687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 47701da177e4SLinus Torvalds { 47711da177e4SLinus Torvalds struct xdr_stream xdr; 47721da177e4SLinus Torvalds struct compound_hdr hdr; 47731da177e4SLinus Torvalds int status; 47741da177e4SLinus Torvalds 47751da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47769b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47779b7b9fccSAndy Adamson if (status) 47789b7b9fccSAndy Adamson goto out; 47799b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47809b7b9fccSAndy Adamson if (status) 47811da177e4SLinus Torvalds goto out; 478276b32999STrond Myklebust status = decode_putfh(&xdr); 478376b32999STrond Myklebust if (status != 0) 478476b32999STrond Myklebust goto out; 47851da177e4SLinus Torvalds status = decode_access(&xdr, res); 478676b32999STrond Myklebust if (status != 0) 478776b32999STrond Myklebust goto out; 478880e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 478980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 47901da177e4SLinus Torvalds out: 47911da177e4SLinus Torvalds return status; 47921da177e4SLinus Torvalds } 47931da177e4SLinus Torvalds 47941da177e4SLinus Torvalds /* 47951da177e4SLinus Torvalds * Decode LOOKUP response 47961da177e4SLinus Torvalds */ 47978687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 47981da177e4SLinus Torvalds { 47991da177e4SLinus Torvalds struct xdr_stream xdr; 48001da177e4SLinus Torvalds struct compound_hdr hdr; 48011da177e4SLinus Torvalds int status; 48021da177e4SLinus Torvalds 48031da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48049b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48059b7b9fccSAndy Adamson if (status) 48069b7b9fccSAndy Adamson goto out; 48079b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48089b7b9fccSAndy Adamson if (status) 48091da177e4SLinus Torvalds goto out; 48101da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48111da177e4SLinus Torvalds goto out; 48121da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 48131da177e4SLinus Torvalds goto out; 48141da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 48151da177e4SLinus Torvalds goto out; 481680e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server 481780e52aceSTrond Myklebust ,!RPC_IS_ASYNC(rqstp->rq_task)); 48181da177e4SLinus Torvalds out: 48191da177e4SLinus Torvalds return status; 48201da177e4SLinus Torvalds } 48211da177e4SLinus Torvalds 48221da177e4SLinus Torvalds /* 48231da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 48241da177e4SLinus Torvalds */ 48258687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 48261da177e4SLinus Torvalds { 48271da177e4SLinus Torvalds struct xdr_stream xdr; 48281da177e4SLinus Torvalds struct compound_hdr hdr; 48291da177e4SLinus Torvalds int status; 48301da177e4SLinus Torvalds 48311da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48329b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48339b7b9fccSAndy Adamson if (status) 48349b7b9fccSAndy Adamson goto out; 48359b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48369b7b9fccSAndy Adamson if (status) 48371da177e4SLinus Torvalds goto out; 48381da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 48391da177e4SLinus Torvalds goto out; 48401da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 484180e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 484280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48431da177e4SLinus Torvalds out: 48441da177e4SLinus Torvalds return status; 48451da177e4SLinus Torvalds } 48461da177e4SLinus Torvalds 48471da177e4SLinus Torvalds /* 48481da177e4SLinus Torvalds * Decode REMOVE response 48491da177e4SLinus Torvalds */ 48504fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 48511da177e4SLinus Torvalds { 48521da177e4SLinus Torvalds struct xdr_stream xdr; 48531da177e4SLinus Torvalds struct compound_hdr hdr; 48541da177e4SLinus Torvalds int status; 48551da177e4SLinus Torvalds 48561da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48579b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48589b7b9fccSAndy Adamson if (status) 48599b7b9fccSAndy Adamson goto out; 48609b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48619b7b9fccSAndy Adamson if (status) 48621da177e4SLinus Torvalds goto out; 486316e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 486416e42959STrond Myklebust goto out; 486516e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 486616e42959STrond Myklebust goto out; 4867d346890bSTrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server, 486880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48691da177e4SLinus Torvalds out: 48701da177e4SLinus Torvalds return status; 48711da177e4SLinus Torvalds } 48721da177e4SLinus Torvalds 48731da177e4SLinus Torvalds /* 48741da177e4SLinus Torvalds * Decode RENAME response 48751da177e4SLinus Torvalds */ 4876e8582a8bSJeff Layton static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs_renameres *res) 48771da177e4SLinus Torvalds { 48781da177e4SLinus Torvalds struct xdr_stream xdr; 48791da177e4SLinus Torvalds struct compound_hdr hdr; 48801da177e4SLinus Torvalds int status; 48811da177e4SLinus Torvalds 48821da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48839b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48849b7b9fccSAndy Adamson if (status) 48859b7b9fccSAndy Adamson goto out; 48869b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48879b7b9fccSAndy Adamson if (status) 48881da177e4SLinus Torvalds goto out; 48891da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48901da177e4SLinus Torvalds goto out; 48911da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 48921da177e4SLinus Torvalds goto out; 48931da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48941da177e4SLinus Torvalds goto out; 48956caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 48966caf2c82STrond Myklebust goto out; 48976caf2c82STrond Myklebust /* Current FH is target directory */ 489880e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server, 489980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 49006caf2c82STrond Myklebust goto out; 49016caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 49026caf2c82STrond Myklebust goto out; 490380e52aceSTrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server, 490480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49051da177e4SLinus Torvalds out: 49061da177e4SLinus Torvalds return status; 49071da177e4SLinus Torvalds } 49081da177e4SLinus Torvalds 49091da177e4SLinus Torvalds /* 49101da177e4SLinus Torvalds * Decode LINK response 49111da177e4SLinus Torvalds */ 49128687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 49131da177e4SLinus Torvalds { 49141da177e4SLinus Torvalds struct xdr_stream xdr; 49151da177e4SLinus Torvalds struct compound_hdr hdr; 49161da177e4SLinus Torvalds int status; 49171da177e4SLinus Torvalds 49181da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49199b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 49209b7b9fccSAndy Adamson if (status) 49219b7b9fccSAndy Adamson goto out; 49229b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49239b7b9fccSAndy Adamson if (status) 49241da177e4SLinus Torvalds goto out; 49251da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49261da177e4SLinus Torvalds goto out; 49271da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 49281da177e4SLinus Torvalds goto out; 49291da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49301da177e4SLinus Torvalds goto out; 493191ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 493291ba2eeeSTrond Myklebust goto out; 493391ba2eeeSTrond Myklebust /* 493491ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 493591ba2eeeSTrond Myklebust * filehandle. 493691ba2eeeSTrond Myklebust */ 493780e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server, 493880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 493991ba2eeeSTrond Myklebust goto out; 494091ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 494191ba2eeeSTrond Myklebust goto out; 494280e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 494380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49441da177e4SLinus Torvalds out: 49451da177e4SLinus Torvalds return status; 49461da177e4SLinus Torvalds } 49471da177e4SLinus Torvalds 49481da177e4SLinus Torvalds /* 49491da177e4SLinus Torvalds * Decode CREATE response 49501da177e4SLinus Torvalds */ 49518687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 49521da177e4SLinus Torvalds { 49531da177e4SLinus Torvalds struct xdr_stream xdr; 49541da177e4SLinus Torvalds struct compound_hdr hdr; 49551da177e4SLinus Torvalds int status; 49561da177e4SLinus Torvalds 49571da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49589b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 49599b7b9fccSAndy Adamson if (status) 49609b7b9fccSAndy Adamson goto out; 49619b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49629b7b9fccSAndy Adamson if (status) 49631da177e4SLinus Torvalds goto out; 49641da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49651da177e4SLinus Torvalds goto out; 496656ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 496756ae19f3STrond Myklebust goto out; 49681da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 49691da177e4SLinus Torvalds goto out; 49701da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 49711da177e4SLinus Torvalds goto out; 497280e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server, 497380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 497456ae19f3STrond Myklebust goto out; 497556ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 497656ae19f3STrond Myklebust goto out; 497780e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server, 497880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49791da177e4SLinus Torvalds out: 49801da177e4SLinus Torvalds return status; 49811da177e4SLinus Torvalds } 49821da177e4SLinus Torvalds 49831da177e4SLinus Torvalds /* 49841da177e4SLinus Torvalds * Decode SYMLINK response 49851da177e4SLinus Torvalds */ 49868687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 49871da177e4SLinus Torvalds { 49881da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 49891da177e4SLinus Torvalds } 49901da177e4SLinus Torvalds 49911da177e4SLinus Torvalds /* 49921da177e4SLinus Torvalds * Decode GETATTR response 49931da177e4SLinus Torvalds */ 49948687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 49951da177e4SLinus Torvalds { 49961da177e4SLinus Torvalds struct xdr_stream xdr; 49971da177e4SLinus Torvalds struct compound_hdr hdr; 49981da177e4SLinus Torvalds int status; 49991da177e4SLinus Torvalds 50001da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50011da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50021da177e4SLinus Torvalds if (status) 50031da177e4SLinus Torvalds goto out; 50049b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50059b7b9fccSAndy Adamson if (status) 50069b7b9fccSAndy Adamson goto out; 50071da177e4SLinus Torvalds status = decode_putfh(&xdr); 50081da177e4SLinus Torvalds if (status) 50091da177e4SLinus Torvalds goto out; 501080e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 501180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50121da177e4SLinus Torvalds out: 50131da177e4SLinus Torvalds return status; 50141da177e4SLinus Torvalds } 50151da177e4SLinus Torvalds 501623ec6965SJ. Bruce Fields /* 501723ec6965SJ. Bruce Fields * Encode an SETACL request 501823ec6965SJ. Bruce Fields */ 501923ec6965SJ. Bruce Fields static int 50208687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 502123ec6965SJ. Bruce Fields { 502223ec6965SJ. Bruce Fields struct xdr_stream xdr; 502323ec6965SJ. Bruce Fields struct compound_hdr hdr = { 502466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 502523ec6965SJ. Bruce Fields }; 502623ec6965SJ. Bruce Fields int status; 502723ec6965SJ. Bruce Fields 502823ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 50290c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 50309b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 5031cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 5032d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 5033d017931cSAndy Adamson encode_nops(&hdr); 503423ec6965SJ. Bruce Fields return status; 503523ec6965SJ. Bruce Fields } 503605d564feSAndy Adamson 503723ec6965SJ. Bruce Fields /* 503823ec6965SJ. Bruce Fields * Decode SETACL response 503923ec6965SJ. Bruce Fields */ 504023ec6965SJ. Bruce Fields static int 504173c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 504273c403a9SBenny Halevy struct nfs_setaclres *res) 504323ec6965SJ. Bruce Fields { 504423ec6965SJ. Bruce Fields struct xdr_stream xdr; 504523ec6965SJ. Bruce Fields struct compound_hdr hdr; 504623ec6965SJ. Bruce Fields int status; 504723ec6965SJ. Bruce Fields 504823ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 504923ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 505023ec6965SJ. Bruce Fields if (status) 505123ec6965SJ. Bruce Fields goto out; 50529b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50539b7b9fccSAndy Adamson if (status) 50549b7b9fccSAndy Adamson goto out; 505523ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 505623ec6965SJ. Bruce Fields if (status) 505723ec6965SJ. Bruce Fields goto out; 50589e9ecc03SBenny Halevy status = decode_setattr(&xdr); 505923ec6965SJ. Bruce Fields out: 506023ec6965SJ. Bruce Fields return status; 506123ec6965SJ. Bruce Fields } 50621da177e4SLinus Torvalds 50631da177e4SLinus Torvalds /* 5064029d105eSJ. Bruce Fields * Decode GETACL response 5065029d105eSJ. Bruce Fields */ 5066029d105eSJ. Bruce Fields static int 5067663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 5068663c79b3SBenny Halevy struct nfs_getaclres *res) 5069029d105eSJ. Bruce Fields { 5070029d105eSJ. Bruce Fields struct xdr_stream xdr; 5071029d105eSJ. Bruce Fields struct compound_hdr hdr; 5072029d105eSJ. Bruce Fields int status; 5073029d105eSJ. Bruce Fields 5074029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5075029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 5076029d105eSJ. Bruce Fields if (status) 5077029d105eSJ. Bruce Fields goto out; 50789b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50799b7b9fccSAndy Adamson if (status) 50809b7b9fccSAndy Adamson goto out; 5081029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 5082029d105eSJ. Bruce Fields if (status) 5083029d105eSJ. Bruce Fields goto out; 5084663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 5085029d105eSJ. Bruce Fields 5086029d105eSJ. Bruce Fields out: 5087029d105eSJ. Bruce Fields return status; 5088029d105eSJ. Bruce Fields } 5089029d105eSJ. Bruce Fields 5090029d105eSJ. Bruce Fields /* 50911da177e4SLinus Torvalds * Decode CLOSE response 50921da177e4SLinus Torvalds */ 50938687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 50941da177e4SLinus Torvalds { 50951da177e4SLinus Torvalds struct xdr_stream xdr; 50961da177e4SLinus Torvalds struct compound_hdr hdr; 50971da177e4SLinus Torvalds int status; 50981da177e4SLinus Torvalds 50991da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51001da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51011da177e4SLinus Torvalds if (status) 51021da177e4SLinus Torvalds goto out; 51039b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51049b7b9fccSAndy Adamson if (status) 51059b7b9fccSAndy Adamson goto out; 51061da177e4SLinus Torvalds status = decode_putfh(&xdr); 51071da177e4SLinus Torvalds if (status) 51081da177e4SLinus Torvalds goto out; 51091da177e4SLinus Torvalds status = decode_close(&xdr, res); 5110516a6af6STrond Myklebust if (status != 0) 5111516a6af6STrond Myklebust goto out; 5112516a6af6STrond Myklebust /* 5113516a6af6STrond Myklebust * Note: Server may do delete on close for this file 5114516a6af6STrond Myklebust * in which case the getattr call will fail with 5115516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 5116516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 5117516a6af6STrond Myklebust */ 511880e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 511980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51201da177e4SLinus Torvalds out: 51211da177e4SLinus Torvalds return status; 51221da177e4SLinus Torvalds } 51231da177e4SLinus Torvalds 51241da177e4SLinus Torvalds /* 51251da177e4SLinus Torvalds * Decode OPEN response 51261da177e4SLinus Torvalds */ 51278687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 51281da177e4SLinus Torvalds { 51291da177e4SLinus Torvalds struct xdr_stream xdr; 51301da177e4SLinus Torvalds struct compound_hdr hdr; 51311da177e4SLinus Torvalds int status; 51321da177e4SLinus Torvalds 51331da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51341da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51351da177e4SLinus Torvalds if (status) 51361da177e4SLinus Torvalds goto out; 51379b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51389b7b9fccSAndy Adamson if (status) 51399b7b9fccSAndy Adamson goto out; 51401da177e4SLinus Torvalds status = decode_putfh(&xdr); 51411da177e4SLinus Torvalds if (status) 51421da177e4SLinus Torvalds goto out; 514356ae19f3STrond Myklebust status = decode_savefh(&xdr); 514456ae19f3STrond Myklebust if (status) 514556ae19f3STrond Myklebust goto out; 51461da177e4SLinus Torvalds status = decode_open(&xdr, res); 51471da177e4SLinus Torvalds if (status) 51481da177e4SLinus Torvalds goto out; 51499936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 51501da177e4SLinus Torvalds goto out; 515180e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server, 515280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 515356ae19f3STrond Myklebust goto out; 5154365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 515556ae19f3STrond Myklebust goto out; 515680e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server, 515780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51581da177e4SLinus Torvalds out: 51591da177e4SLinus Torvalds return status; 51601da177e4SLinus Torvalds } 51611da177e4SLinus Torvalds 51621da177e4SLinus Torvalds /* 51631da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 51641da177e4SLinus Torvalds */ 51658687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 51661da177e4SLinus Torvalds { 51671da177e4SLinus Torvalds struct xdr_stream xdr; 51681da177e4SLinus Torvalds struct compound_hdr hdr; 51691da177e4SLinus Torvalds int status; 51701da177e4SLinus Torvalds 51711da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51721da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51731da177e4SLinus Torvalds if (status) 51741da177e4SLinus Torvalds goto out; 51751da177e4SLinus Torvalds status = decode_putfh(&xdr); 51761da177e4SLinus Torvalds if (status) 51771da177e4SLinus Torvalds goto out; 51781da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 51791da177e4SLinus Torvalds out: 51801da177e4SLinus Torvalds return status; 51811da177e4SLinus Torvalds } 51821da177e4SLinus Torvalds 51831da177e4SLinus Torvalds /* 51841da177e4SLinus Torvalds * Decode OPEN response 51851da177e4SLinus Torvalds */ 51868687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 51871da177e4SLinus Torvalds { 51881da177e4SLinus Torvalds struct xdr_stream xdr; 51891da177e4SLinus Torvalds struct compound_hdr hdr; 51901da177e4SLinus Torvalds int status; 51911da177e4SLinus Torvalds 51921da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51931da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51941da177e4SLinus Torvalds if (status) 51951da177e4SLinus Torvalds goto out; 51969b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51979b7b9fccSAndy Adamson if (status) 51989b7b9fccSAndy Adamson goto out; 51991da177e4SLinus Torvalds status = decode_putfh(&xdr); 52001da177e4SLinus Torvalds if (status) 52011da177e4SLinus Torvalds goto out; 52021da177e4SLinus Torvalds status = decode_open(&xdr, res); 5203864472e9STrond Myklebust if (status) 5204864472e9STrond Myklebust goto out; 520580e52aceSTrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server, 520680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52071da177e4SLinus Torvalds out: 52081da177e4SLinus Torvalds return status; 52091da177e4SLinus Torvalds } 52101da177e4SLinus Torvalds 52111da177e4SLinus Torvalds /* 52121da177e4SLinus Torvalds * Decode SETATTR response 52131da177e4SLinus Torvalds */ 52148687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 52151da177e4SLinus Torvalds { 52161da177e4SLinus Torvalds struct xdr_stream xdr; 52171da177e4SLinus Torvalds struct compound_hdr hdr; 52181da177e4SLinus Torvalds int status; 52191da177e4SLinus Torvalds 52201da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52211da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52221da177e4SLinus Torvalds if (status) 52231da177e4SLinus Torvalds goto out; 52249b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52259b7b9fccSAndy Adamson if (status) 52269b7b9fccSAndy Adamson goto out; 52271da177e4SLinus Torvalds status = decode_putfh(&xdr); 52281da177e4SLinus Torvalds if (status) 52291da177e4SLinus Torvalds goto out; 52309e9ecc03SBenny Halevy status = decode_setattr(&xdr); 52311da177e4SLinus Torvalds if (status) 52321da177e4SLinus Torvalds goto out; 523380e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 523480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52351da177e4SLinus Torvalds out: 52361da177e4SLinus Torvalds return status; 52371da177e4SLinus Torvalds } 52381da177e4SLinus Torvalds 52391da177e4SLinus Torvalds /* 52401da177e4SLinus Torvalds * Decode LOCK response 52411da177e4SLinus Torvalds */ 52428687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 52431da177e4SLinus Torvalds { 52441da177e4SLinus Torvalds struct xdr_stream xdr; 52451da177e4SLinus Torvalds struct compound_hdr hdr; 52461da177e4SLinus Torvalds int status; 52471da177e4SLinus Torvalds 52481da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52491da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52501da177e4SLinus Torvalds if (status) 52511da177e4SLinus Torvalds goto out; 52529b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52539b7b9fccSAndy Adamson if (status) 52549b7b9fccSAndy Adamson goto out; 52551da177e4SLinus Torvalds status = decode_putfh(&xdr); 52561da177e4SLinus Torvalds if (status) 52571da177e4SLinus Torvalds goto out; 52581da177e4SLinus Torvalds status = decode_lock(&xdr, res); 52591da177e4SLinus Torvalds out: 52601da177e4SLinus Torvalds return status; 52611da177e4SLinus Torvalds } 52621da177e4SLinus Torvalds 52631da177e4SLinus Torvalds /* 52641da177e4SLinus Torvalds * Decode LOCKT response 52651da177e4SLinus Torvalds */ 52668687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 52671da177e4SLinus Torvalds { 52681da177e4SLinus Torvalds struct xdr_stream xdr; 52691da177e4SLinus Torvalds struct compound_hdr hdr; 52701da177e4SLinus Torvalds int status; 52711da177e4SLinus Torvalds 52721da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52731da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52741da177e4SLinus Torvalds if (status) 52751da177e4SLinus Torvalds goto out; 52769b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52779b7b9fccSAndy Adamson if (status) 52789b7b9fccSAndy Adamson goto out; 52791da177e4SLinus Torvalds status = decode_putfh(&xdr); 52801da177e4SLinus Torvalds if (status) 52811da177e4SLinus Torvalds goto out; 52821da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 52831da177e4SLinus Torvalds out: 52841da177e4SLinus Torvalds return status; 52851da177e4SLinus Torvalds } 52861da177e4SLinus Torvalds 52871da177e4SLinus Torvalds /* 52881da177e4SLinus Torvalds * Decode LOCKU response 52891da177e4SLinus Torvalds */ 52908687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 52911da177e4SLinus Torvalds { 52921da177e4SLinus Torvalds struct xdr_stream xdr; 52931da177e4SLinus Torvalds struct compound_hdr hdr; 52941da177e4SLinus Torvalds int status; 52951da177e4SLinus Torvalds 52961da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52971da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52981da177e4SLinus Torvalds if (status) 52991da177e4SLinus Torvalds goto out; 53009b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53019b7b9fccSAndy Adamson if (status) 53029b7b9fccSAndy Adamson goto out; 53031da177e4SLinus Torvalds status = decode_putfh(&xdr); 53041da177e4SLinus Torvalds if (status) 53051da177e4SLinus Torvalds goto out; 53061da177e4SLinus Torvalds status = decode_locku(&xdr, res); 53071da177e4SLinus Torvalds out: 53081da177e4SLinus Torvalds return status; 53091da177e4SLinus Torvalds } 53101da177e4SLinus Torvalds 5311d3c7b7ccSTrond Myklebust static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 5312d3c7b7ccSTrond Myklebust { 5313d3c7b7ccSTrond Myklebust struct xdr_stream xdr; 5314d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 5315d3c7b7ccSTrond Myklebust int status; 5316d3c7b7ccSTrond Myklebust 5317d3c7b7ccSTrond Myklebust xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5318d3c7b7ccSTrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 5319d3c7b7ccSTrond Myklebust if (!status) 5320d3c7b7ccSTrond Myklebust status = decode_release_lockowner(&xdr); 5321d3c7b7ccSTrond Myklebust return status; 5322d3c7b7ccSTrond Myklebust } 5323d3c7b7ccSTrond Myklebust 53241da177e4SLinus Torvalds /* 53251da177e4SLinus Torvalds * Decode READLINK response 53261da177e4SLinus Torvalds */ 5327f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 5328f50c7000SBenny Halevy struct nfs4_readlink_res *res) 53291da177e4SLinus Torvalds { 53301da177e4SLinus Torvalds struct xdr_stream xdr; 53311da177e4SLinus Torvalds struct compound_hdr hdr; 53321da177e4SLinus Torvalds int status; 53331da177e4SLinus Torvalds 53341da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53351da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53361da177e4SLinus Torvalds if (status) 53371da177e4SLinus Torvalds goto out; 53389b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53399b7b9fccSAndy Adamson if (status) 53409b7b9fccSAndy Adamson goto out; 53411da177e4SLinus Torvalds status = decode_putfh(&xdr); 53421da177e4SLinus Torvalds if (status) 53431da177e4SLinus Torvalds goto out; 53441da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 53451da177e4SLinus Torvalds out: 53461da177e4SLinus Torvalds return status; 53471da177e4SLinus Torvalds } 53481da177e4SLinus Torvalds 53491da177e4SLinus Torvalds /* 53501da177e4SLinus Torvalds * Decode READDIR response 53511da177e4SLinus Torvalds */ 53528687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 53531da177e4SLinus Torvalds { 53541da177e4SLinus Torvalds struct xdr_stream xdr; 53551da177e4SLinus Torvalds struct compound_hdr hdr; 53561da177e4SLinus Torvalds int status; 53571da177e4SLinus Torvalds 53581da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53591da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53601da177e4SLinus Torvalds if (status) 53611da177e4SLinus Torvalds goto out; 53629b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53639b7b9fccSAndy Adamson if (status) 53649b7b9fccSAndy Adamson goto out; 53651da177e4SLinus Torvalds status = decode_putfh(&xdr); 53661da177e4SLinus Torvalds if (status) 53671da177e4SLinus Torvalds goto out; 53681da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 53691da177e4SLinus Torvalds out: 53701da177e4SLinus Torvalds return status; 53711da177e4SLinus Torvalds } 53721da177e4SLinus Torvalds 53731da177e4SLinus Torvalds /* 53741da177e4SLinus Torvalds * Decode Read response 53751da177e4SLinus Torvalds */ 53768687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 53771da177e4SLinus Torvalds { 53781da177e4SLinus Torvalds struct xdr_stream xdr; 53791da177e4SLinus Torvalds struct compound_hdr hdr; 53801da177e4SLinus Torvalds int status; 53811da177e4SLinus Torvalds 53821da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53831da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53841da177e4SLinus Torvalds if (status) 53851da177e4SLinus Torvalds goto out; 53869b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53879b7b9fccSAndy Adamson if (status) 53889b7b9fccSAndy Adamson goto out; 53891da177e4SLinus Torvalds status = decode_putfh(&xdr); 53901da177e4SLinus Torvalds if (status) 53911da177e4SLinus Torvalds goto out; 53921da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 53931da177e4SLinus Torvalds if (!status) 53941da177e4SLinus Torvalds status = res->count; 53951da177e4SLinus Torvalds out: 53961da177e4SLinus Torvalds return status; 53971da177e4SLinus Torvalds } 53981da177e4SLinus Torvalds 53991da177e4SLinus Torvalds /* 54001da177e4SLinus Torvalds * Decode WRITE response 54011da177e4SLinus Torvalds */ 54028687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 54031da177e4SLinus Torvalds { 54041da177e4SLinus Torvalds struct xdr_stream xdr; 54051da177e4SLinus Torvalds struct compound_hdr hdr; 54061da177e4SLinus Torvalds int status; 54071da177e4SLinus Torvalds 54081da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54091da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54101da177e4SLinus Torvalds if (status) 54111da177e4SLinus Torvalds goto out; 54129b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54139b7b9fccSAndy Adamson if (status) 54149b7b9fccSAndy Adamson goto out; 54151da177e4SLinus Torvalds status = decode_putfh(&xdr); 54161da177e4SLinus Torvalds if (status) 54171da177e4SLinus Torvalds goto out; 54181da177e4SLinus Torvalds status = decode_write(&xdr, res); 54194f9838c7STrond Myklebust if (status) 54204f9838c7STrond Myklebust goto out; 542180e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 542280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54231da177e4SLinus Torvalds if (!status) 54241da177e4SLinus Torvalds status = res->count; 54251da177e4SLinus Torvalds out: 54261da177e4SLinus Torvalds return status; 54271da177e4SLinus Torvalds } 54281da177e4SLinus Torvalds 54291da177e4SLinus Torvalds /* 54301da177e4SLinus Torvalds * Decode COMMIT response 54311da177e4SLinus Torvalds */ 54328687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 54331da177e4SLinus Torvalds { 54341da177e4SLinus Torvalds struct xdr_stream xdr; 54351da177e4SLinus Torvalds struct compound_hdr hdr; 54361da177e4SLinus Torvalds int status; 54371da177e4SLinus Torvalds 54381da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54391da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54401da177e4SLinus Torvalds if (status) 54411da177e4SLinus Torvalds goto out; 54429b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54439b7b9fccSAndy Adamson if (status) 54449b7b9fccSAndy Adamson goto out; 54451da177e4SLinus Torvalds status = decode_putfh(&xdr); 54461da177e4SLinus Torvalds if (status) 54471da177e4SLinus Torvalds goto out; 54481da177e4SLinus Torvalds status = decode_commit(&xdr, res); 54494f9838c7STrond Myklebust if (status) 54504f9838c7STrond Myklebust goto out; 545180e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 545280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54531da177e4SLinus Torvalds out: 54541da177e4SLinus Torvalds return status; 54551da177e4SLinus Torvalds } 54561da177e4SLinus Torvalds 54571da177e4SLinus Torvalds /* 54588b173218SRicardo Labiaga * Decode FSINFO response 54591da177e4SLinus Torvalds */ 54603dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 54613dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 54621da177e4SLinus Torvalds { 54631da177e4SLinus Torvalds struct xdr_stream xdr; 54641da177e4SLinus Torvalds struct compound_hdr hdr; 54651da177e4SLinus Torvalds int status; 54661da177e4SLinus Torvalds 54671da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54681da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54691da177e4SLinus Torvalds if (!status) 54709b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54719b7b9fccSAndy Adamson if (!status) 54721da177e4SLinus Torvalds status = decode_putfh(&xdr); 54731da177e4SLinus Torvalds if (!status) 54743dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 54751da177e4SLinus Torvalds return status; 54761da177e4SLinus Torvalds } 54771da177e4SLinus Torvalds 54781da177e4SLinus Torvalds /* 54798b173218SRicardo Labiaga * Decode PATHCONF response 54801da177e4SLinus Torvalds */ 5481d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5482d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 54831da177e4SLinus Torvalds { 54841da177e4SLinus Torvalds struct xdr_stream xdr; 54851da177e4SLinus Torvalds struct compound_hdr hdr; 54861da177e4SLinus Torvalds int status; 54871da177e4SLinus Torvalds 54881da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54891da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54901da177e4SLinus Torvalds if (!status) 54919b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54929b7b9fccSAndy Adamson if (!status) 54931da177e4SLinus Torvalds status = decode_putfh(&xdr); 54941da177e4SLinus Torvalds if (!status) 5495d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 54961da177e4SLinus Torvalds return status; 54971da177e4SLinus Torvalds } 54981da177e4SLinus Torvalds 54991da177e4SLinus Torvalds /* 55008b173218SRicardo Labiaga * Decode STATFS response 55011da177e4SLinus Torvalds */ 550224ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 550324ad148aSBenny Halevy struct nfs4_statfs_res *res) 55041da177e4SLinus Torvalds { 55051da177e4SLinus Torvalds struct xdr_stream xdr; 55061da177e4SLinus Torvalds struct compound_hdr hdr; 55071da177e4SLinus Torvalds int status; 55081da177e4SLinus Torvalds 55091da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55101da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55111da177e4SLinus Torvalds if (!status) 55129b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 55139b7b9fccSAndy Adamson if (!status) 55141da177e4SLinus Torvalds status = decode_putfh(&xdr); 55151da177e4SLinus Torvalds if (!status) 551624ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 55171da177e4SLinus Torvalds return status; 55181da177e4SLinus Torvalds } 55191da177e4SLinus Torvalds 55201da177e4SLinus Torvalds /* 55218b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 55221da177e4SLinus Torvalds */ 55238687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 55241da177e4SLinus Torvalds { 55251da177e4SLinus Torvalds struct xdr_stream xdr; 55261da177e4SLinus Torvalds struct compound_hdr hdr; 55271da177e4SLinus Torvalds int status; 55281da177e4SLinus Torvalds 55291da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55309b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 55319b7b9fccSAndy Adamson if (status) 55329b7b9fccSAndy Adamson goto out; 55339b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 55349b7b9fccSAndy Adamson if (status) 55351da177e4SLinus Torvalds goto out; 55361da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 55371da177e4SLinus Torvalds goto out; 55381da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 55391da177e4SLinus Torvalds out: 55401da177e4SLinus Torvalds return status; 55411da177e4SLinus Torvalds } 55421da177e4SLinus Torvalds 55431da177e4SLinus Torvalds /* 55441da177e4SLinus Torvalds * Decode RENEW response 55451da177e4SLinus Torvalds */ 55468687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 55471da177e4SLinus Torvalds { 55481da177e4SLinus Torvalds struct xdr_stream xdr; 55491da177e4SLinus Torvalds struct compound_hdr hdr; 55501da177e4SLinus Torvalds int status; 55511da177e4SLinus Torvalds 55521da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 55531da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55541da177e4SLinus Torvalds if (!status) 55551da177e4SLinus Torvalds status = decode_renew(&xdr); 55561da177e4SLinus Torvalds return status; 55571da177e4SLinus Torvalds } 55581da177e4SLinus Torvalds 55591da177e4SLinus Torvalds /* 55608b173218SRicardo Labiaga * Decode SETCLIENTID response 55611da177e4SLinus Torvalds */ 55628687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5563bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 55641da177e4SLinus Torvalds { 55651da177e4SLinus Torvalds struct xdr_stream xdr; 55661da177e4SLinus Torvalds struct compound_hdr hdr; 55671da177e4SLinus Torvalds int status; 55681da177e4SLinus Torvalds 55691da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55701da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55711da177e4SLinus Torvalds if (!status) 5572bb8b27e5STrond Myklebust status = decode_setclientid(&xdr, res); 55731da177e4SLinus Torvalds return status; 55741da177e4SLinus Torvalds } 55751da177e4SLinus Torvalds 55761da177e4SLinus Torvalds /* 55778b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 55781da177e4SLinus Torvalds */ 55798687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 55801da177e4SLinus Torvalds { 55811da177e4SLinus Torvalds struct xdr_stream xdr; 55821da177e4SLinus Torvalds struct compound_hdr hdr; 55831da177e4SLinus Torvalds int status; 55841da177e4SLinus Torvalds 55851da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55861da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55871da177e4SLinus Torvalds if (!status) 55881da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 55891da177e4SLinus Torvalds if (!status) 55901da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 55911da177e4SLinus Torvalds if (!status) 55921da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 55931da177e4SLinus Torvalds return status; 55941da177e4SLinus Torvalds } 55951da177e4SLinus Torvalds 55961da177e4SLinus Torvalds /* 55978b173218SRicardo Labiaga * Decode DELEGRETURN response 55981da177e4SLinus Torvalds */ 55998687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 56001da177e4SLinus Torvalds { 56011da177e4SLinus Torvalds struct xdr_stream xdr; 56021da177e4SLinus Torvalds struct compound_hdr hdr; 56031da177e4SLinus Torvalds int status; 56041da177e4SLinus Torvalds 56051da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56061da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 56079b7b9fccSAndy Adamson if (status) 56089b7b9fccSAndy Adamson goto out; 56099b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 56109b7b9fccSAndy Adamson if (status) 5611fa178f29STrond Myklebust goto out; 56121da177e4SLinus Torvalds status = decode_putfh(&xdr); 5613fa178f29STrond Myklebust if (status != 0) 5614fa178f29STrond Myklebust goto out; 56151da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5616556ae3bbSJeff Layton if (status != 0) 5617556ae3bbSJeff Layton goto out; 561880e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 561980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 5620fa178f29STrond Myklebust out: 56211da177e4SLinus Torvalds return status; 56221da177e4SLinus Torvalds } 56231da177e4SLinus Torvalds 5624683b57b4STrond Myklebust /* 56258b173218SRicardo Labiaga * Decode FS_LOCATIONS response 5626683b57b4STrond Myklebust */ 562722958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 562822958463SBenny Halevy struct nfs4_fs_locations_res *res) 5629683b57b4STrond Myklebust { 5630683b57b4STrond Myklebust struct xdr_stream xdr; 5631683b57b4STrond Myklebust struct compound_hdr hdr; 5632683b57b4STrond Myklebust int status; 5633683b57b4STrond Myklebust 5634683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5635683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 56369b7b9fccSAndy Adamson if (status) 56379b7b9fccSAndy Adamson goto out; 56389b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 56399b7b9fccSAndy Adamson if (status) 5640683b57b4STrond Myklebust goto out; 5641683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5642683b57b4STrond Myklebust goto out; 5643683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5644683b57b4STrond Myklebust goto out; 5645683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 564622958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 564780e52aceSTrond Myklebust res->fs_locations->server, 564880e52aceSTrond Myklebust !RPC_IS_ASYNC(req->rq_task)); 5649683b57b4STrond Myklebust out: 5650683b57b4STrond Myklebust return status; 5651683b57b4STrond Myklebust } 5652683b57b4STrond Myklebust 565399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 565499fe60d0SBenny Halevy /* 56558b173218SRicardo Labiaga * Decode EXCHANGE_ID response 565699fe60d0SBenny Halevy */ 565799fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 565899fe60d0SBenny Halevy void *res) 565999fe60d0SBenny Halevy { 566099fe60d0SBenny Halevy struct xdr_stream xdr; 566199fe60d0SBenny Halevy struct compound_hdr hdr; 566299fe60d0SBenny Halevy int status; 566399fe60d0SBenny Halevy 566499fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 566599fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 566699fe60d0SBenny Halevy if (!status) 566799fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 566899fe60d0SBenny Halevy return status; 566999fe60d0SBenny Halevy } 56702050f0ccSAndy Adamson 56712050f0ccSAndy Adamson /* 56728b173218SRicardo Labiaga * Decode CREATE_SESSION response 5673fc931582SAndy Adamson */ 5674fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5675fc931582SAndy Adamson struct nfs41_create_session_res *res) 5676fc931582SAndy Adamson { 5677fc931582SAndy Adamson struct xdr_stream xdr; 5678fc931582SAndy Adamson struct compound_hdr hdr; 5679fc931582SAndy Adamson int status; 5680fc931582SAndy Adamson 5681fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5682fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5683fc931582SAndy Adamson if (!status) 5684fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5685fc931582SAndy Adamson return status; 5686fc931582SAndy Adamson } 5687fc931582SAndy Adamson 5688fc931582SAndy Adamson /* 56898b173218SRicardo Labiaga * Decode DESTROY_SESSION response 56900f3e66c6SAndy Adamson */ 56910f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 56920f3e66c6SAndy Adamson void *dummy) 56930f3e66c6SAndy Adamson { 56940f3e66c6SAndy Adamson struct xdr_stream xdr; 56950f3e66c6SAndy Adamson struct compound_hdr hdr; 56960f3e66c6SAndy Adamson int status; 56970f3e66c6SAndy Adamson 56980f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56990f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 57000f3e66c6SAndy Adamson if (!status) 57010f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 57020f3e66c6SAndy Adamson return status; 57030f3e66c6SAndy Adamson } 57040f3e66c6SAndy Adamson 57050f3e66c6SAndy Adamson /* 57068b173218SRicardo Labiaga * Decode SEQUENCE response 5707fc01cea9SAndy Adamson */ 5708fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 5709fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5710fc01cea9SAndy Adamson { 5711fc01cea9SAndy Adamson struct xdr_stream xdr; 5712fc01cea9SAndy Adamson struct compound_hdr hdr; 5713fc01cea9SAndy Adamson int status; 5714fc01cea9SAndy Adamson 5715fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5716fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5717fc01cea9SAndy Adamson if (!status) 5718fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 5719fc01cea9SAndy Adamson return status; 5720fc01cea9SAndy Adamson } 5721fc01cea9SAndy Adamson 5722fc01cea9SAndy Adamson /* 57238b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 57242050f0ccSAndy Adamson */ 57252050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 57262050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 57272050f0ccSAndy Adamson { 57282050f0ccSAndy Adamson struct xdr_stream xdr; 57292050f0ccSAndy Adamson struct compound_hdr hdr; 57302050f0ccSAndy Adamson int status; 57312050f0ccSAndy Adamson 57322050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 57332050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 57342050f0ccSAndy Adamson if (!status) 57352050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 57362050f0ccSAndy Adamson if (!status) 57372050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 57382050f0ccSAndy Adamson if (!status) 57392050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 57402050f0ccSAndy Adamson return status; 57412050f0ccSAndy Adamson } 574218019753SRicardo Labiaga 574318019753SRicardo Labiaga /* 574418019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 574518019753SRicardo Labiaga */ 574618019753SRicardo Labiaga static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p, 574718019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 574818019753SRicardo Labiaga { 574918019753SRicardo Labiaga struct xdr_stream xdr; 575018019753SRicardo Labiaga struct compound_hdr hdr; 575118019753SRicardo Labiaga int status; 575218019753SRicardo Labiaga 575318019753SRicardo Labiaga xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 575418019753SRicardo Labiaga status = decode_compound_hdr(&xdr, &hdr); 575518019753SRicardo Labiaga if (!status) 575618019753SRicardo Labiaga status = decode_sequence(&xdr, &res->seq_res, rqstp); 575718019753SRicardo Labiaga if (!status) 575818019753SRicardo Labiaga status = decode_reclaim_complete(&xdr, (void *)NULL); 575918019753SRicardo Labiaga return status; 576018019753SRicardo Labiaga } 576199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 576299fe60d0SBenny Halevy 57630dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 57641da177e4SLinus Torvalds { 57651da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 57661da177e4SLinus Torvalds uint32_t len; 57671da177e4SLinus Torvalds 57681da177e4SLinus Torvalds if (!*p++) { 57691da177e4SLinus Torvalds if (!*p) 57701da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 57711da177e4SLinus Torvalds entry->eof = 1; 57721da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 57731da177e4SLinus Torvalds } 57741da177e4SLinus Torvalds 57751da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 57761da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 57771da177e4SLinus Torvalds entry->len = ntohl(*p++); 57781da177e4SLinus Torvalds entry->name = (const char *) p; 57791da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 57801da177e4SLinus Torvalds 57811da177e4SLinus Torvalds /* 57821da177e4SLinus Torvalds * In case the server doesn't return an inode number, 57831da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 57841da177e4SLinus Torvalds * since glibc seems to choke on it...) 57851da177e4SLinus Torvalds */ 57861da177e4SLinus Torvalds entry->ino = 1; 57871da177e4SLinus Torvalds 57881da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 57891da177e4SLinus Torvalds if (len-- > 0) { 57901da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 57911da177e4SLinus Torvalds if (len-- > 0) { 57921da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 57931da177e4SLinus Torvalds p += len; 57941da177e4SLinus Torvalds } 57951da177e4SLinus Torvalds } 57961da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 57971da177e4SLinus Torvalds if (len > 0) { 579897d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 579997d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 580097d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 580197d312d0SManoj Naik p++; 580297d312d0SManoj Naik len--; 580397d312d0SManoj Naik } 58041da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 58051da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 58061da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 58071da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 58081da177e4SLinus Torvalds p += len; 58091da177e4SLinus Torvalds } 58101da177e4SLinus Torvalds 58111da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 58121da177e4SLinus Torvalds return p; 58131da177e4SLinus Torvalds } 58141da177e4SLinus Torvalds 58151da177e4SLinus Torvalds /* 58161da177e4SLinus Torvalds * We need to translate between nfs status return values and 58171da177e4SLinus Torvalds * the local errno values which may not be the same. 58181da177e4SLinus Torvalds */ 58191da177e4SLinus Torvalds static struct { 58201da177e4SLinus Torvalds int stat; 58211da177e4SLinus Torvalds int errno; 58221da177e4SLinus Torvalds } nfs_errtbl[] = { 58231da177e4SLinus Torvalds { NFS4_OK, 0 }, 5824856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5825856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5826856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5827856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5828856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5829856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5830856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5831856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5832856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5833856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5834856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5835856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5836856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5837856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5838856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5839856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5840856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5841856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5842856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5843856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5844856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5845856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5846856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5847856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5848fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 5849856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5850856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5851856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5852856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5853856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5854856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 58551da177e4SLinus Torvalds * to be handled by a 58561da177e4SLinus Torvalds * middle-layer. 58571da177e4SLinus Torvalds */ 5858856dff3dSBenny Halevy { -1, -EIO } 58591da177e4SLinus Torvalds }; 58601da177e4SLinus Torvalds 58611da177e4SLinus Torvalds /* 58621da177e4SLinus Torvalds * Convert an NFS error code to a local one. 58631da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 58641da177e4SLinus Torvalds */ 58651da177e4SLinus Torvalds static int 58660a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 58671da177e4SLinus Torvalds { 58681da177e4SLinus Torvalds int i; 58691da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 58701da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 58711da177e4SLinus Torvalds return nfs_errtbl[i].errno; 58721da177e4SLinus Torvalds } 58731da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 58741da177e4SLinus Torvalds /* The server is looney tunes. */ 5875fdcb4577STrond Myklebust return -EREMOTEIO; 58761da177e4SLinus Torvalds } 58771da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 58781da177e4SLinus Torvalds * handle it. 58791da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 58801da177e4SLinus Torvalds * not conflict with native Linux error codes. 58811da177e4SLinus Torvalds */ 5882856dff3dSBenny Halevy return -stat; 58831da177e4SLinus Torvalds } 58841da177e4SLinus Torvalds 58851da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 58861da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 58871da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 58881da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 58891da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 58902bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 58912bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5892cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5893cc0175c1SChuck Lever .p_name = #proc, \ 58941da177e4SLinus Torvalds } 58951da177e4SLinus Torvalds 58961da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 58971da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 58981da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 58991da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 59001da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 59011da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 59021da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 59031da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 59041da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 59051da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 59061da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 59071da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 59081da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 59091da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 59101da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 59111da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 59121da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 59131da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 59141da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 59151da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 59161da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 59171da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 59181da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 59191da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 59201da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 59211da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 59221da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 59231da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 59241da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 59251da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 59261da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 59271da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5928029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 592923ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5930683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 5931d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 593299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 593399fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5934fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 59350f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 5936fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 59372050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 593818019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 593999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 59401da177e4SLinus Torvalds }; 59411da177e4SLinus Torvalds 59421da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 59431da177e4SLinus Torvalds .number = 4, 5944e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 59451da177e4SLinus Torvalds .procs = nfs4_procedures 59461da177e4SLinus Torvalds }; 59471da177e4SLinus Torvalds 59481da177e4SLinus Torvalds /* 59491da177e4SLinus Torvalds * Local variables: 59501da177e4SLinus Torvalds * c-basic-offset: 8 59511da177e4SLinus Torvalds * End: 59521da177e4SLinus Torvalds */ 5953