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) { 819955a857eSBryan Schumaker owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name, IDMAP_NAMESZ); 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) { 831955a857eSBryan Schumaker owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group, IDMAP_NAMESZ); 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 { 138882f2e547SBryan Schumaker uint32_t attrs[2] = {0, 0}; 13898687b63aSAl Viro __be32 *p; 13901da177e4SLinus Torvalds 139182f2e547SBryan Schumaker if (readdir->plus) { 139282f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 139382f2e547SBryan Schumaker FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE; 139482f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 139582f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 139682f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 139782f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 139882f2e547SBryan Schumaker } 139982f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID; 140082f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID; 140182f2e547SBryan Schumaker 140213c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 1403e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READDIR); 1404b95be5a9SBenny Halevy p = xdr_encode_hyper(p, readdir->cookie); 140593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 1406e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ 1407e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count); 1408e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 140982f2e547SBryan Schumaker 141082f2e547SBryan Schumaker if (!readdir->plus) { 141197d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 141297d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 141397d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 141497d312d0SManoj Naik else 141597d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 141682f2e547SBryan Schumaker } 141782f2e547SBryan Schumaker 1418e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 141934558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1420d017931cSAndy Adamson hdr->nops++; 1421dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 142244109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 142344109241SFred Isaman __func__, 1424eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1425eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1426eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1427eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1428eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 14291da177e4SLinus Torvalds } 14301da177e4SLinus Torvalds 1431cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 14321da177e4SLinus Torvalds { 14338687b63aSAl Viro __be32 *p; 14341da177e4SLinus Torvalds 143513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143634558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1437d017931cSAndy Adamson hdr->nops++; 1438dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 14391da177e4SLinus Torvalds } 14401da177e4SLinus Torvalds 1441cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 14421da177e4SLinus Torvalds { 14438687b63aSAl Viro __be32 *p; 14441da177e4SLinus Torvalds 144513c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1446e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1447811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1448d017931cSAndy Adamson hdr->nops++; 1449dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 14501da177e4SLinus Torvalds } 14511da177e4SLinus Torvalds 1452cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 14531da177e4SLinus Torvalds { 14548687b63aSAl Viro __be32 *p; 14551da177e4SLinus Torvalds 1456811652bdSBenny Halevy p = reserve_space(xdr, 4); 1457811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1458811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1459811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1460d017931cSAndy Adamson hdr->nops++; 1461dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14621da177e4SLinus Torvalds } 14631da177e4SLinus Torvalds 1464cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14651da177e4SLinus Torvalds { 14668687b63aSAl Viro __be32 *p; 14671da177e4SLinus Torvalds 146813c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1469e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 147034558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1471d017931cSAndy Adamson hdr->nops++; 1472dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 14731da177e4SLinus Torvalds } 14741da177e4SLinus Torvalds 1475cf8cdbe5SAndy Adamson static void 1476d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 147756ae19f3STrond Myklebust { 14788687b63aSAl Viro __be32 *p; 147956ae19f3STrond Myklebust 148013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 148134558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1482d017931cSAndy Adamson hdr->nops++; 1483dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 148456ae19f3STrond Myklebust } 148556ae19f3STrond Myklebust 148656ae19f3STrond Myklebust static int 1487d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 148823ec6965SJ. Bruce Fields { 14898687b63aSAl Viro __be32 *p; 149023ec6965SJ. Bruce Fields 149113c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1492e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 149334558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 149413c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1495e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 149634558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 149723ec6965SJ. Bruce Fields if (arg->acl_len % 4) 149823ec6965SJ. Bruce Fields return -EINVAL; 149913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 150034558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 150123ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1502d017931cSAndy Adamson hdr->nops++; 1503dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 150423ec6965SJ. Bruce Fields return 0; 150523ec6965SJ. Bruce Fields } 150623ec6965SJ. Bruce Fields 1507cf8cdbe5SAndy Adamson static void 1508d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15091da177e4SLinus Torvalds { 15108687b63aSAl Viro __be32 *p; 15111da177e4SLinus Torvalds 151213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 151334558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1514d017931cSAndy Adamson hdr->nops++; 1515dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 15161da177e4SLinus Torvalds } 15171da177e4SLinus Torvalds 1518cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 15191da177e4SLinus Torvalds { 15208687b63aSAl Viro __be32 *p; 15211da177e4SLinus Torvalds 152213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1523e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 152434558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1525d017931cSAndy Adamson hdr->nops++; 1526dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1527cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 15281da177e4SLinus Torvalds } 15291da177e4SLinus Torvalds 1530cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 15311da177e4SLinus Torvalds { 15328687b63aSAl Viro __be32 *p; 15331da177e4SLinus Torvalds 153413c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1535e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 153634558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 15371da177e4SLinus Torvalds 15381da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 153913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 154034558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 15411da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 15421da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 154313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 154434558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1545d017931cSAndy Adamson hdr->nops++; 1546dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 15471da177e4SLinus Torvalds } 15481da177e4SLinus Torvalds 1549bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 15501da177e4SLinus Torvalds { 15518687b63aSAl Viro __be32 *p; 15521da177e4SLinus Torvalds 155313c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1554e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1555bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1556bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1557d017931cSAndy Adamson hdr->nops++; 1558dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15591da177e4SLinus Torvalds } 15601da177e4SLinus Torvalds 1561cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15621da177e4SLinus Torvalds { 15638687b63aSAl Viro __be32 *p; 15641da177e4SLinus Torvalds 156513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 156634558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 15671da177e4SLinus Torvalds 1568f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 15691da177e4SLinus Torvalds 157013c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1571b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1572e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 157334558513SBenny Halevy *p = cpu_to_be32(args->count); 15741da177e4SLinus Torvalds 15751da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1576d017931cSAndy Adamson hdr->nops++; 1577dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 15781da177e4SLinus Torvalds } 15791da177e4SLinus Torvalds 1580cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15811da177e4SLinus Torvalds { 15828687b63aSAl Viro __be32 *p; 15831da177e4SLinus Torvalds 158413c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 15851da177e4SLinus Torvalds 1586e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 158734558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1588d017931cSAndy Adamson hdr->nops++; 1589dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15901da177e4SLinus Torvalds } 15919b7b9fccSAndy Adamson 159299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15939b7b9fccSAndy Adamson /* NFSv4.1 operations */ 159499fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 159599fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 159699fe60d0SBenny Halevy struct compound_hdr *hdr) 159799fe60d0SBenny Halevy { 159899fe60d0SBenny Halevy __be32 *p; 159999fe60d0SBenny Halevy 160013c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1601e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 160234558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 160399fe60d0SBenny Halevy 160499fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 160599fe60d0SBenny Halevy 160613c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1607e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1608e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 160934558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 161099fe60d0SBenny Halevy hdr->nops++; 161199fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 161299fe60d0SBenny Halevy } 1613fc931582SAndy Adamson 1614fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1615fc931582SAndy Adamson struct nfs41_create_session_args *args, 1616fc931582SAndy Adamson struct compound_hdr *hdr) 1617fc931582SAndy Adamson { 1618fc931582SAndy Adamson __be32 *p; 1619fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1620fc931582SAndy Adamson uint32_t len; 1621fc931582SAndy Adamson struct nfs_client *clp = args->client; 16228e0d46e1SMike Sager u32 max_resp_sz_cached; 16238e0d46e1SMike Sager 16248e0d46e1SMike Sager /* 16258e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 16268e0d46e1SMike Sager * 2 is the verifier. 16278e0d46e1SMike Sager */ 16288e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 16298e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1630fc931582SAndy Adamson 1631fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1632fc931582SAndy Adamson clp->cl_ipaddr); 163342edd698SBenny Halevy 163413c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1635e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1636b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1637e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1638e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1639fc931582SAndy Adamson 1640fc931582SAndy Adamson /* Fore Channel */ 1641e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1642e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1643e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 16448e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1645e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1646e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1647e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1648fc931582SAndy Adamson 1649fc931582SAndy Adamson /* Back Channel */ 1650e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1651e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1652e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1653e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1654e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1655e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1656e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1657fc931582SAndy Adamson 1658e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1659e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1660e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1661fc931582SAndy Adamson 1662fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1663e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1664811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1665e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1666e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 166734558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1668fc931582SAndy Adamson hdr->nops++; 1669fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1670fc931582SAndy Adamson } 16710f3e66c6SAndy Adamson 16720f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16730f3e66c6SAndy Adamson struct nfs4_session *session, 16740f3e66c6SAndy Adamson struct compound_hdr *hdr) 16750f3e66c6SAndy Adamson { 16760f3e66c6SAndy Adamson __be32 *p; 167713c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1678e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 167934558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 16800f3e66c6SAndy Adamson hdr->nops++; 16810f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 16820f3e66c6SAndy Adamson } 168318019753SRicardo Labiaga 168418019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 168518019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 168618019753SRicardo Labiaga struct compound_hdr *hdr) 168718019753SRicardo Labiaga { 168818019753SRicardo Labiaga __be32 *p; 168918019753SRicardo Labiaga 169018019753SRicardo Labiaga p = reserve_space(xdr, 8); 169118019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 169218019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 169318019753SRicardo Labiaga hdr->nops++; 169418019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 169518019753SRicardo Labiaga } 169699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 169799fe60d0SBenny Halevy 16989b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 16999b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 17009b7b9fccSAndy Adamson struct compound_hdr *hdr) 17019b7b9fccSAndy Adamson { 17029b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 17039b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1704fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1705fc01cea9SAndy Adamson struct nfs4_slot *slot; 1706fc01cea9SAndy Adamson __be32 *p; 17079b7b9fccSAndy Adamson 17089b7b9fccSAndy Adamson if (!session) 17099b7b9fccSAndy Adamson return; 17109b7b9fccSAndy Adamson 1711fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1712fc01cea9SAndy Adamson 1713fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1714fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1715fc01cea9SAndy Adamson 171613c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1717e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1718fc01cea9SAndy Adamson 1719fc01cea9SAndy Adamson /* 1720fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1721fc01cea9SAndy Adamson */ 1722fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1723fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1724fc01cea9SAndy Adamson __func__, 1725fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1726fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1727fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1728fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1729fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1730fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 173193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1732e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1733e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1734e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 173534558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 17369b7b9fccSAndy Adamson hdr->nops++; 17379b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 17389b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 17399b7b9fccSAndy Adamson } 17409b7b9fccSAndy Adamson 17411da177e4SLinus Torvalds /* 17421da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 17431da177e4SLinus Torvalds */ 17441da177e4SLinus Torvalds 174566cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 174666cc0429SBenny Halevy { 174766cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 174866cc0429SBenny Halevy if (args->sa_session) 1749a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 175066cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 175166cc0429SBenny Halevy return 0; 175266cc0429SBenny Halevy } 175366cc0429SBenny Halevy 17541da177e4SLinus Torvalds /* 17551da177e4SLinus Torvalds * Encode an ACCESS request 17561da177e4SLinus Torvalds */ 17578687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 17581da177e4SLinus Torvalds { 17591da177e4SLinus Torvalds struct xdr_stream xdr; 17601da177e4SLinus Torvalds struct compound_hdr hdr = { 176166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17621da177e4SLinus Torvalds }; 17631da177e4SLinus Torvalds 17641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17650c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17669b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1767cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1768cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1769cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1770d017931cSAndy Adamson encode_nops(&hdr); 1771cf8cdbe5SAndy Adamson return 0; 17721da177e4SLinus Torvalds } 17731da177e4SLinus Torvalds 17741da177e4SLinus Torvalds /* 17751da177e4SLinus Torvalds * Encode LOOKUP request 17761da177e4SLinus Torvalds */ 17778687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 17781da177e4SLinus Torvalds { 17791da177e4SLinus Torvalds struct xdr_stream xdr; 17801da177e4SLinus Torvalds struct compound_hdr hdr = { 178166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17821da177e4SLinus Torvalds }; 17831da177e4SLinus Torvalds 17841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1787cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1788cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1789cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1790cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1791d017931cSAndy Adamson encode_nops(&hdr); 1792cf8cdbe5SAndy Adamson return 0; 17931da177e4SLinus Torvalds } 17941da177e4SLinus Torvalds 17951da177e4SLinus Torvalds /* 17961da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 17971da177e4SLinus Torvalds */ 17988687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 17991da177e4SLinus Torvalds { 18001da177e4SLinus Torvalds struct xdr_stream xdr; 18011da177e4SLinus Torvalds struct compound_hdr hdr = { 180266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18031da177e4SLinus Torvalds }; 18041da177e4SLinus Torvalds 18051da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18060c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18079b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1808cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1809cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1810cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1811d017931cSAndy Adamson encode_nops(&hdr); 1812cf8cdbe5SAndy Adamson return 0; 18131da177e4SLinus Torvalds } 18141da177e4SLinus Torvalds 18151da177e4SLinus Torvalds /* 18161da177e4SLinus Torvalds * Encode REMOVE request 18171da177e4SLinus Torvalds */ 18184fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 18191da177e4SLinus Torvalds { 18201da177e4SLinus Torvalds struct xdr_stream xdr; 18211da177e4SLinus Torvalds struct compound_hdr hdr = { 182266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18231da177e4SLinus Torvalds }; 18241da177e4SLinus Torvalds 18251da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18260c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18279b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1828cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1829cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1830cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1831d017931cSAndy Adamson encode_nops(&hdr); 1832cf8cdbe5SAndy Adamson return 0; 18331da177e4SLinus Torvalds } 18341da177e4SLinus Torvalds 18351da177e4SLinus Torvalds /* 18361da177e4SLinus Torvalds * Encode RENAME request 18371da177e4SLinus Torvalds */ 1838920769f0SJeff Layton static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs_renameargs *args) 18391da177e4SLinus Torvalds { 18401da177e4SLinus Torvalds struct xdr_stream xdr; 18411da177e4SLinus Torvalds struct compound_hdr hdr = { 184266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18431da177e4SLinus Torvalds }; 18441da177e4SLinus Torvalds 18451da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18460c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18479b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1848cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1849cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1850cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1851cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1852cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1853cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1854cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1855d017931cSAndy Adamson encode_nops(&hdr); 1856cf8cdbe5SAndy Adamson return 0; 18571da177e4SLinus Torvalds } 18581da177e4SLinus Torvalds 18591da177e4SLinus Torvalds /* 18601da177e4SLinus Torvalds * Encode LINK request 18611da177e4SLinus Torvalds */ 18628687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 18631da177e4SLinus Torvalds { 18641da177e4SLinus Torvalds struct xdr_stream xdr; 18651da177e4SLinus Torvalds struct compound_hdr hdr = { 186666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18671da177e4SLinus Torvalds }; 18681da177e4SLinus Torvalds 18691da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18700c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18719b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1872cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1873cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1874cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1875cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1876cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1877cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1878cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1879d017931cSAndy Adamson encode_nops(&hdr); 1880cf8cdbe5SAndy Adamson return 0; 18811da177e4SLinus Torvalds } 18821da177e4SLinus Torvalds 18831da177e4SLinus Torvalds /* 18841da177e4SLinus Torvalds * Encode CREATE request 18851da177e4SLinus Torvalds */ 18868687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18871da177e4SLinus Torvalds { 18881da177e4SLinus Torvalds struct xdr_stream xdr; 18891da177e4SLinus Torvalds struct compound_hdr hdr = { 189066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18911da177e4SLinus Torvalds }; 18921da177e4SLinus Torvalds 18931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18940c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18959b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1896cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1897cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1898cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1899cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1900cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1901cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1902cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1903d017931cSAndy Adamson encode_nops(&hdr); 1904cf8cdbe5SAndy Adamson return 0; 19051da177e4SLinus Torvalds } 19061da177e4SLinus Torvalds 19071da177e4SLinus Torvalds /* 19081da177e4SLinus Torvalds * Encode SYMLINK request 19091da177e4SLinus Torvalds */ 19108687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 19111da177e4SLinus Torvalds { 19121da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 19131da177e4SLinus Torvalds } 19141da177e4SLinus Torvalds 19151da177e4SLinus Torvalds /* 19161da177e4SLinus Torvalds * Encode GETATTR request 19171da177e4SLinus Torvalds */ 19188687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 19191da177e4SLinus Torvalds { 19201da177e4SLinus Torvalds struct xdr_stream xdr; 19211da177e4SLinus Torvalds struct compound_hdr hdr = { 192266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19231da177e4SLinus Torvalds }; 19241da177e4SLinus Torvalds 19251da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19260c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19279b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1928cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1929cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1930d017931cSAndy Adamson encode_nops(&hdr); 1931cf8cdbe5SAndy Adamson return 0; 19321da177e4SLinus Torvalds } 19331da177e4SLinus Torvalds 19341da177e4SLinus Torvalds /* 19351da177e4SLinus Torvalds * Encode a CLOSE request 19361da177e4SLinus Torvalds */ 19378687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19381da177e4SLinus Torvalds { 19391da177e4SLinus Torvalds struct xdr_stream xdr; 19401da177e4SLinus Torvalds struct compound_hdr hdr = { 194166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19421da177e4SLinus Torvalds }; 19431da177e4SLinus Torvalds 19441da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19450c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19469b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1947cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1948cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1949cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1950d017931cSAndy Adamson encode_nops(&hdr); 1951cf8cdbe5SAndy Adamson return 0; 19521da177e4SLinus Torvalds } 19531da177e4SLinus Torvalds 19541da177e4SLinus Torvalds /* 19551da177e4SLinus Torvalds * Encode an OPEN request 19561da177e4SLinus Torvalds */ 19578687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19581da177e4SLinus Torvalds { 19591da177e4SLinus Torvalds struct xdr_stream xdr; 19601da177e4SLinus Torvalds struct compound_hdr hdr = { 196166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19621da177e4SLinus Torvalds }; 19631da177e4SLinus Torvalds 19641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19650c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19669b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1967cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1968cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1969cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1970cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1971cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1972cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1973cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1974d017931cSAndy Adamson encode_nops(&hdr); 1975cf8cdbe5SAndy Adamson return 0; 19761da177e4SLinus Torvalds } 19771da177e4SLinus Torvalds 19781da177e4SLinus Torvalds /* 19791da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 19801da177e4SLinus Torvalds */ 19818687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 19821da177e4SLinus Torvalds { 19831da177e4SLinus Torvalds struct xdr_stream xdr; 19841da177e4SLinus Torvalds struct compound_hdr hdr = { 1985d017931cSAndy Adamson .nops = 0, 19861da177e4SLinus Torvalds }; 19871da177e4SLinus Torvalds 19881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19890c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1990cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1991cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1992d017931cSAndy Adamson encode_nops(&hdr); 1993cf8cdbe5SAndy Adamson return 0; 19941da177e4SLinus Torvalds } 19951da177e4SLinus Torvalds 19961da177e4SLinus Torvalds /* 19971da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 19981da177e4SLinus Torvalds */ 19998687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 20001da177e4SLinus Torvalds { 20011da177e4SLinus Torvalds struct xdr_stream xdr; 20021da177e4SLinus Torvalds struct compound_hdr hdr = { 200366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20041da177e4SLinus Torvalds }; 20051da177e4SLinus Torvalds 20061da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20070c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20089b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2009cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2010cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 2011cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2012d017931cSAndy Adamson encode_nops(&hdr); 2013cf8cdbe5SAndy Adamson return 0; 20141da177e4SLinus Torvalds } 20151da177e4SLinus Torvalds 20161da177e4SLinus Torvalds /* 20171da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 20181da177e4SLinus Torvalds */ 20198687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 20201da177e4SLinus Torvalds { 20211da177e4SLinus Torvalds struct xdr_stream xdr; 20221da177e4SLinus Torvalds struct compound_hdr hdr = { 202366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20241da177e4SLinus Torvalds }; 20251da177e4SLinus Torvalds 20261da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20270c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20289b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2029cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2030cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 2031cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2032d017931cSAndy Adamson encode_nops(&hdr); 2033cf8cdbe5SAndy Adamson return 0; 20341da177e4SLinus Torvalds } 20351da177e4SLinus Torvalds 20361da177e4SLinus Torvalds /* 20371da177e4SLinus Torvalds * Encode a LOCK request 20381da177e4SLinus Torvalds */ 20398687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 20401da177e4SLinus Torvalds { 20411da177e4SLinus Torvalds struct xdr_stream xdr; 20421da177e4SLinus Torvalds struct compound_hdr hdr = { 204366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20441da177e4SLinus Torvalds }; 20451da177e4SLinus Torvalds 20461da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20470c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20489b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2049cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2050cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 2051d017931cSAndy Adamson encode_nops(&hdr); 2052cf8cdbe5SAndy Adamson return 0; 20531da177e4SLinus Torvalds } 20541da177e4SLinus Torvalds 20551da177e4SLinus Torvalds /* 20561da177e4SLinus Torvalds * Encode a LOCKT request 20571da177e4SLinus Torvalds */ 20588687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 20591da177e4SLinus Torvalds { 20601da177e4SLinus Torvalds struct xdr_stream xdr; 20611da177e4SLinus Torvalds struct compound_hdr hdr = { 206266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20631da177e4SLinus Torvalds }; 20641da177e4SLinus Torvalds 20651da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20660c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20679b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2068cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2069cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 2070d017931cSAndy Adamson encode_nops(&hdr); 2071cf8cdbe5SAndy Adamson return 0; 20721da177e4SLinus Torvalds } 20731da177e4SLinus Torvalds 20741da177e4SLinus Torvalds /* 20751da177e4SLinus Torvalds * Encode a LOCKU request 20761da177e4SLinus Torvalds */ 20778687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 20781da177e4SLinus Torvalds { 20791da177e4SLinus Torvalds struct xdr_stream xdr; 20801da177e4SLinus Torvalds struct compound_hdr hdr = { 208166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20821da177e4SLinus Torvalds }; 20831da177e4SLinus Torvalds 20841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2087cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2088cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 2089d017931cSAndy Adamson encode_nops(&hdr); 2090cf8cdbe5SAndy Adamson return 0; 20911da177e4SLinus Torvalds } 20921da177e4SLinus Torvalds 2093d3c7b7ccSTrond Myklebust static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args) 2094d3c7b7ccSTrond Myklebust { 2095d3c7b7ccSTrond Myklebust struct xdr_stream xdr; 2096d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2097d3c7b7ccSTrond Myklebust .minorversion = 0, 2098d3c7b7ccSTrond Myklebust }; 2099d3c7b7ccSTrond Myklebust 2100d3c7b7ccSTrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2101d3c7b7ccSTrond Myklebust encode_compound_hdr(&xdr, req, &hdr); 2102d3c7b7ccSTrond Myklebust encode_release_lockowner(&xdr, &args->lock_owner, &hdr); 2103d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2104d3c7b7ccSTrond Myklebust return 0; 2105d3c7b7ccSTrond Myklebust } 2106d3c7b7ccSTrond Myklebust 21071da177e4SLinus Torvalds /* 21081da177e4SLinus Torvalds * Encode a READLINK request 21091da177e4SLinus Torvalds */ 21108687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 21111da177e4SLinus Torvalds { 21121da177e4SLinus Torvalds struct xdr_stream xdr; 21131da177e4SLinus Torvalds struct compound_hdr hdr = { 211466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21151da177e4SLinus Torvalds }; 21161da177e4SLinus Torvalds 21171da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21180c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21199b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2120cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2121cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2122e3a535e1STrond Myklebust 212328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2124e3a535e1STrond Myklebust args->pgbase, args->pglen); 2125d017931cSAndy Adamson encode_nops(&hdr); 2126cf8cdbe5SAndy Adamson return 0; 21271da177e4SLinus Torvalds } 21281da177e4SLinus Torvalds 21291da177e4SLinus Torvalds /* 21301da177e4SLinus Torvalds * Encode a READDIR request 21311da177e4SLinus Torvalds */ 21328687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 21331da177e4SLinus Torvalds { 21341da177e4SLinus Torvalds struct xdr_stream xdr; 21351da177e4SLinus Torvalds struct compound_hdr hdr = { 213666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21371da177e4SLinus Torvalds }; 21381da177e4SLinus Torvalds 21391da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21400c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21419b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2142cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2143cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2144d6ac02dfSTrond Myklebust 214528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2146d6ac02dfSTrond Myklebust args->pgbase, args->count); 2147d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 214828f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2149d6ac02dfSTrond Myklebust args->pgbase, args->count); 2150d017931cSAndy Adamson encode_nops(&hdr); 2151cf8cdbe5SAndy Adamson return 0; 21521da177e4SLinus Torvalds } 21531da177e4SLinus Torvalds 21541da177e4SLinus Torvalds /* 21551da177e4SLinus Torvalds * Encode a READ request 21561da177e4SLinus Torvalds */ 21578687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 21581da177e4SLinus Torvalds { 21591da177e4SLinus Torvalds struct xdr_stream xdr; 21601da177e4SLinus Torvalds struct compound_hdr hdr = { 216166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21621da177e4SLinus Torvalds }; 21631da177e4SLinus Torvalds 21641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21650c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21669b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2167cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2168cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 21691da177e4SLinus Torvalds 217028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 21711da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 21724f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2173d017931cSAndy Adamson encode_nops(&hdr); 2174cf8cdbe5SAndy Adamson return 0; 21751da177e4SLinus Torvalds } 21761da177e4SLinus Torvalds 21771da177e4SLinus Torvalds /* 21781da177e4SLinus Torvalds * Encode an SETATTR request 21791da177e4SLinus Torvalds */ 21808687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 21811da177e4SLinus Torvalds { 21821da177e4SLinus Torvalds struct xdr_stream xdr; 21831da177e4SLinus Torvalds struct compound_hdr hdr = { 218466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21851da177e4SLinus Torvalds }; 21861da177e4SLinus Torvalds 21871da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21880c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21899b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2190cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2191cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2192cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2193d017931cSAndy Adamson encode_nops(&hdr); 2194cf8cdbe5SAndy Adamson return 0; 21951da177e4SLinus Torvalds } 21961da177e4SLinus Torvalds 21971da177e4SLinus Torvalds /* 2198029d105eSJ. Bruce Fields * Encode a GETACL request 2199029d105eSJ. Bruce Fields */ 2200029d105eSJ. Bruce Fields static int 22018687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2202029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2203029d105eSJ. Bruce Fields { 2204029d105eSJ. Bruce Fields struct xdr_stream xdr; 2205029d105eSJ. Bruce Fields struct compound_hdr hdr = { 220666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2207029d105eSJ. Bruce Fields }; 220828f56694SBenny Halevy uint32_t replen; 2209029d105eSJ. Bruce Fields 2210029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22110c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22129b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2213cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2214d327cf74SJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; 2215cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2216cf8cdbe5SAndy Adamson 221728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2218029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2219d017931cSAndy Adamson encode_nops(&hdr); 2220cf8cdbe5SAndy Adamson return 0; 2221029d105eSJ. Bruce Fields } 2222029d105eSJ. Bruce Fields 2223029d105eSJ. Bruce Fields /* 22241da177e4SLinus Torvalds * Encode a WRITE request 22251da177e4SLinus Torvalds */ 22268687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 22271da177e4SLinus Torvalds { 22281da177e4SLinus Torvalds struct xdr_stream xdr; 22291da177e4SLinus Torvalds struct compound_hdr hdr = { 223066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22311da177e4SLinus Torvalds }; 22321da177e4SLinus Torvalds 22331da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22340c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22359b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2236cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2237cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 22384f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2239cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2240d017931cSAndy Adamson encode_nops(&hdr); 2241cf8cdbe5SAndy Adamson return 0; 22421da177e4SLinus Torvalds } 22431da177e4SLinus Torvalds 22441da177e4SLinus Torvalds /* 22451da177e4SLinus Torvalds * a COMMIT request 22461da177e4SLinus Torvalds */ 22478687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 22481da177e4SLinus Torvalds { 22491da177e4SLinus Torvalds struct xdr_stream xdr; 22501da177e4SLinus Torvalds struct compound_hdr hdr = { 225166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22521da177e4SLinus Torvalds }; 22531da177e4SLinus Torvalds 22541da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22550c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22569b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2257cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2258cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2259cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2260d017931cSAndy Adamson encode_nops(&hdr); 2261cf8cdbe5SAndy Adamson return 0; 22621da177e4SLinus Torvalds } 22631da177e4SLinus Torvalds 22641da177e4SLinus Torvalds /* 22651da177e4SLinus Torvalds * FSINFO request 22661da177e4SLinus Torvalds */ 22678687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 22681da177e4SLinus Torvalds { 22691da177e4SLinus Torvalds struct xdr_stream xdr; 22701da177e4SLinus Torvalds struct compound_hdr hdr = { 227166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22721da177e4SLinus Torvalds }; 22731da177e4SLinus Torvalds 22741da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22750c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22769b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2277cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2278cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2279d017931cSAndy Adamson encode_nops(&hdr); 2280cf8cdbe5SAndy Adamson return 0; 22811da177e4SLinus Torvalds } 22821da177e4SLinus Torvalds 22831da177e4SLinus Torvalds /* 22841da177e4SLinus Torvalds * a PATHCONF request 22851da177e4SLinus Torvalds */ 22868687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 22871da177e4SLinus Torvalds { 22881da177e4SLinus Torvalds struct xdr_stream xdr; 22891da177e4SLinus Torvalds struct compound_hdr hdr = { 229066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22911da177e4SLinus Torvalds }; 22921da177e4SLinus Torvalds 22931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22940c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22959b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2296cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2297cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2298d017931cSAndy Adamson &hdr); 2299d017931cSAndy Adamson encode_nops(&hdr); 2300cf8cdbe5SAndy Adamson return 0; 23011da177e4SLinus Torvalds } 23021da177e4SLinus Torvalds 23031da177e4SLinus Torvalds /* 23041da177e4SLinus Torvalds * a STATFS request 23051da177e4SLinus Torvalds */ 23068687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 23071da177e4SLinus Torvalds { 23081da177e4SLinus Torvalds struct xdr_stream xdr; 23091da177e4SLinus Torvalds struct compound_hdr hdr = { 231066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23111da177e4SLinus Torvalds }; 23121da177e4SLinus Torvalds 23131da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23140c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23159b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2316cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2317cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2318d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2319d017931cSAndy Adamson encode_nops(&hdr); 2320cf8cdbe5SAndy Adamson return 0; 23211da177e4SLinus Torvalds } 23221da177e4SLinus Torvalds 23231da177e4SLinus Torvalds /* 23241da177e4SLinus Torvalds * GETATTR_BITMAP request 23251da177e4SLinus Torvalds */ 232643652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 232743652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 23281da177e4SLinus Torvalds { 23291da177e4SLinus Torvalds struct xdr_stream xdr; 23301da177e4SLinus Torvalds struct compound_hdr hdr = { 233166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23321da177e4SLinus Torvalds }; 23331da177e4SLinus Torvalds 23341da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23350c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23369b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 233743652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2338cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 23391da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 23401da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2341d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2342d017931cSAndy Adamson encode_nops(&hdr); 2343cf8cdbe5SAndy Adamson return 0; 23441da177e4SLinus Torvalds } 23451da177e4SLinus Torvalds 23461da177e4SLinus Torvalds /* 23471da177e4SLinus Torvalds * a RENEW request 23481da177e4SLinus Torvalds */ 23498687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 23501da177e4SLinus Torvalds { 23511da177e4SLinus Torvalds struct xdr_stream xdr; 23521da177e4SLinus Torvalds struct compound_hdr hdr = { 2353d017931cSAndy Adamson .nops = 0, 23541da177e4SLinus Torvalds }; 23551da177e4SLinus Torvalds 23561da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23570c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2358cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2359d017931cSAndy Adamson encode_nops(&hdr); 2360cf8cdbe5SAndy Adamson return 0; 23611da177e4SLinus Torvalds } 23621da177e4SLinus Torvalds 23631da177e4SLinus Torvalds /* 23641da177e4SLinus Torvalds * a SETCLIENTID request 23651da177e4SLinus Torvalds */ 23668687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 23671da177e4SLinus Torvalds { 23681da177e4SLinus Torvalds struct xdr_stream xdr; 23691da177e4SLinus Torvalds struct compound_hdr hdr = { 2370d017931cSAndy Adamson .nops = 0, 23711da177e4SLinus Torvalds }; 23721da177e4SLinus Torvalds 23731da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23740c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2375cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2376d017931cSAndy Adamson encode_nops(&hdr); 2377cf8cdbe5SAndy Adamson return 0; 23781da177e4SLinus Torvalds } 23791da177e4SLinus Torvalds 23801da177e4SLinus Torvalds /* 23811da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 23821da177e4SLinus Torvalds */ 2383bb8b27e5STrond Myklebust static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid_res *arg) 23841da177e4SLinus Torvalds { 23851da177e4SLinus Torvalds struct xdr_stream xdr; 23861da177e4SLinus Torvalds struct compound_hdr hdr = { 2387d017931cSAndy Adamson .nops = 0, 23881da177e4SLinus Torvalds }; 23891da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 23901da177e4SLinus Torvalds 23911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23920c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2393bb8b27e5STrond Myklebust encode_setclientid_confirm(&xdr, arg, &hdr); 2394cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2395cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2396d017931cSAndy Adamson encode_nops(&hdr); 2397cf8cdbe5SAndy Adamson return 0; 23981da177e4SLinus Torvalds } 23991da177e4SLinus Torvalds 24001da177e4SLinus Torvalds /* 24011da177e4SLinus Torvalds * DELEGRETURN request 24021da177e4SLinus Torvalds */ 24038687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 24041da177e4SLinus Torvalds { 24051da177e4SLinus Torvalds struct xdr_stream xdr; 24061da177e4SLinus Torvalds struct compound_hdr hdr = { 240766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24081da177e4SLinus Torvalds }; 24091da177e4SLinus Torvalds 24101da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24110c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 24129b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2413cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2414cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2415cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2416d017931cSAndy Adamson encode_nops(&hdr); 2417cf8cdbe5SAndy Adamson return 0; 24181da177e4SLinus Torvalds } 24191da177e4SLinus Torvalds 24201da177e4SLinus Torvalds /* 2421683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2422683b57b4STrond Myklebust */ 24238687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2424683b57b4STrond Myklebust { 2425683b57b4STrond Myklebust struct xdr_stream xdr; 2426683b57b4STrond Myklebust struct compound_hdr hdr = { 242766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2428683b57b4STrond Myklebust }; 242928f56694SBenny Halevy uint32_t replen; 2430683b57b4STrond Myklebust 2431683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24320c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 24339b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2434cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2435cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 243628f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2437cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2438cf8cdbe5SAndy Adamson 243928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2440683b57b4STrond Myklebust 0, PAGE_SIZE); 2441d017931cSAndy Adamson encode_nops(&hdr); 2442cf8cdbe5SAndy Adamson return 0; 2443683b57b4STrond Myklebust } 2444683b57b4STrond Myklebust 244599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 244699fe60d0SBenny Halevy /* 244799fe60d0SBenny Halevy * EXCHANGE_ID request 244899fe60d0SBenny Halevy */ 244999fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 245099fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 245199fe60d0SBenny Halevy { 245299fe60d0SBenny Halevy struct xdr_stream xdr; 245399fe60d0SBenny Halevy struct compound_hdr hdr = { 2454a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 245599fe60d0SBenny Halevy }; 245699fe60d0SBenny Halevy 245799fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 245899fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 245999fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 246099fe60d0SBenny Halevy encode_nops(&hdr); 246199fe60d0SBenny Halevy return 0; 246299fe60d0SBenny Halevy } 24632050f0ccSAndy Adamson 24642050f0ccSAndy Adamson /* 2465fc931582SAndy Adamson * a CREATE_SESSION request 2466fc931582SAndy Adamson */ 2467fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2468fc931582SAndy Adamson struct nfs41_create_session_args *args) 2469fc931582SAndy Adamson { 2470fc931582SAndy Adamson struct xdr_stream xdr; 2471fc931582SAndy Adamson struct compound_hdr hdr = { 2472a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2473fc931582SAndy Adamson }; 2474fc931582SAndy Adamson 2475fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2476fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2477fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2478fc931582SAndy Adamson encode_nops(&hdr); 2479fc931582SAndy Adamson return 0; 2480fc931582SAndy Adamson } 2481fc931582SAndy Adamson 2482fc931582SAndy Adamson /* 24830f3e66c6SAndy Adamson * a DESTROY_SESSION request 24840f3e66c6SAndy Adamson */ 24850f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 24860f3e66c6SAndy Adamson struct nfs4_session *session) 24870f3e66c6SAndy Adamson { 24880f3e66c6SAndy Adamson struct xdr_stream xdr; 24890f3e66c6SAndy Adamson struct compound_hdr hdr = { 2490a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 24910f3e66c6SAndy Adamson }; 24920f3e66c6SAndy Adamson 24930f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24940f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24950f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 24960f3e66c6SAndy Adamson encode_nops(&hdr); 24970f3e66c6SAndy Adamson return 0; 24980f3e66c6SAndy Adamson } 24990f3e66c6SAndy Adamson 25000f3e66c6SAndy Adamson /* 2501fc01cea9SAndy Adamson * a SEQUENCE request 2502fc01cea9SAndy Adamson */ 2503fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2504fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2505fc01cea9SAndy Adamson { 2506fc01cea9SAndy Adamson struct xdr_stream xdr; 2507fc01cea9SAndy Adamson struct compound_hdr hdr = { 2508fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2509fc01cea9SAndy Adamson }; 2510fc01cea9SAndy Adamson 2511fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2512fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2513fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2514fc01cea9SAndy Adamson encode_nops(&hdr); 2515fc01cea9SAndy Adamson return 0; 2516fc01cea9SAndy Adamson } 2517fc01cea9SAndy Adamson 2518fc01cea9SAndy Adamson /* 25192050f0ccSAndy Adamson * a GET_LEASE_TIME request 25202050f0ccSAndy Adamson */ 25212050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 25222050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 25232050f0ccSAndy Adamson { 25242050f0ccSAndy Adamson struct xdr_stream xdr; 25252050f0ccSAndy Adamson struct compound_hdr hdr = { 25262050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 25272050f0ccSAndy Adamson }; 25282050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 25292050f0ccSAndy Adamson 25302050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 25312050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 25322050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 25332050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 25342050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 25352050f0ccSAndy Adamson encode_nops(&hdr); 25362050f0ccSAndy Adamson return 0; 25372050f0ccSAndy Adamson } 253818019753SRicardo Labiaga 253918019753SRicardo Labiaga /* 254018019753SRicardo Labiaga * a RECLAIM_COMPLETE request 254118019753SRicardo Labiaga */ 254218019753SRicardo Labiaga static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p, 254318019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 254418019753SRicardo Labiaga { 254518019753SRicardo Labiaga struct xdr_stream xdr; 254618019753SRicardo Labiaga struct compound_hdr hdr = { 254718019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 254818019753SRicardo Labiaga }; 254918019753SRicardo Labiaga 255018019753SRicardo Labiaga xdr_init_encode(&xdr, &req->rq_snd_buf, p); 255118019753SRicardo Labiaga encode_compound_hdr(&xdr, req, &hdr); 255218019753SRicardo Labiaga encode_sequence(&xdr, &args->seq_args, &hdr); 255318019753SRicardo Labiaga encode_reclaim_complete(&xdr, args, &hdr); 255418019753SRicardo Labiaga encode_nops(&hdr); 255518019753SRicardo Labiaga return 0; 255618019753SRicardo Labiaga } 255718019753SRicardo Labiaga 255899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 255999fe60d0SBenny Halevy 2560686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2561686841b3SBenny Halevy { 2562686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2563686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2564686841b3SBenny Halevy func, xdr->end - xdr->p); 2565686841b3SBenny Halevy } 25661da177e4SLinus Torvalds 2567683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 25681da177e4SLinus Torvalds { 25698687b63aSAl Viro __be32 *p; 25701da177e4SLinus Torvalds 2571c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2572c0eae66eSBenny Halevy if (unlikely(!p)) 2573c0eae66eSBenny Halevy goto out_overflow; 2574cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2575c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2576c0eae66eSBenny Halevy if (unlikely(!p)) 2577c0eae66eSBenny Halevy goto out_overflow; 25781da177e4SLinus Torvalds *string = (char *)p; 25791da177e4SLinus Torvalds return 0; 2580c0eae66eSBenny Halevy out_overflow: 2581c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2582c0eae66eSBenny Halevy return -EIO; 25831da177e4SLinus Torvalds } 25841da177e4SLinus Torvalds 25851da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 25861da177e4SLinus Torvalds { 25878687b63aSAl Viro __be32 *p; 25881da177e4SLinus Torvalds 2589c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2590c0eae66eSBenny Halevy if (unlikely(!p)) 2591c0eae66eSBenny Halevy goto out_overflow; 25926f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2593cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 25941da177e4SLinus Torvalds 2595c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2596c0eae66eSBenny Halevy if (unlikely(!p)) 2597c0eae66eSBenny Halevy goto out_overflow; 25981da177e4SLinus Torvalds hdr->tag = (char *)p; 25991da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2600cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2601aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2602aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 26031da177e4SLinus Torvalds return 0; 2604c0eae66eSBenny Halevy out_overflow: 2605c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2606c0eae66eSBenny Halevy return -EIO; 26071da177e4SLinus Torvalds } 26081da177e4SLinus Torvalds 26091da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 26101da177e4SLinus Torvalds { 26118687b63aSAl Viro __be32 *p; 26121da177e4SLinus Torvalds uint32_t opnum; 26131da177e4SLinus Torvalds int32_t nfserr; 26141da177e4SLinus Torvalds 2615c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2616c0eae66eSBenny Halevy if (unlikely(!p)) 2617c0eae66eSBenny Halevy goto out_overflow; 26186f723f77SBenny Halevy opnum = be32_to_cpup(p++); 26191da177e4SLinus Torvalds if (opnum != expected) { 2620fe82a183SChuck Lever dprintk("nfs: Server returned operation" 26211da177e4SLinus Torvalds " %d but we issued a request for %d\n", 26221da177e4SLinus Torvalds opnum, expected); 26231da177e4SLinus Torvalds return -EIO; 26241da177e4SLinus Torvalds } 2625cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 26261da177e4SLinus Torvalds if (nfserr != NFS_OK) 2627856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 26281da177e4SLinus Torvalds return 0; 2629c0eae66eSBenny Halevy out_overflow: 2630c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2631c0eae66eSBenny Halevy return -EIO; 26321da177e4SLinus Torvalds } 26331da177e4SLinus Torvalds 26341da177e4SLinus Torvalds /* Dummy routine */ 2635adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 26361da177e4SLinus Torvalds { 26378687b63aSAl Viro __be32 *p; 2638683b57b4STrond Myklebust unsigned int strlen; 26391da177e4SLinus Torvalds char *str; 26401da177e4SLinus Torvalds 2641c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2642c0eae66eSBenny Halevy if (likely(p)) 26431da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2644c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2645c0eae66eSBenny Halevy return -EIO; 26461da177e4SLinus Torvalds } 26471da177e4SLinus Torvalds 26481da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 26491da177e4SLinus Torvalds { 26508687b63aSAl Viro uint32_t bmlen; 26518687b63aSAl Viro __be32 *p; 26521da177e4SLinus Torvalds 2653c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2654c0eae66eSBenny Halevy if (unlikely(!p)) 2655c0eae66eSBenny Halevy goto out_overflow; 2656cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 26571da177e4SLinus Torvalds 26581da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2659c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2660c0eae66eSBenny Halevy if (unlikely(!p)) 2661c0eae66eSBenny Halevy goto out_overflow; 26621da177e4SLinus Torvalds if (bmlen > 0) { 26636f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 26641da177e4SLinus Torvalds if (bmlen > 1) 2665cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 26661da177e4SLinus Torvalds } 26671da177e4SLinus Torvalds return 0; 2668c0eae66eSBenny Halevy out_overflow: 2669c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2670c0eae66eSBenny Halevy return -EIO; 26711da177e4SLinus Torvalds } 26721da177e4SLinus Torvalds 26738687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 26741da177e4SLinus Torvalds { 26758687b63aSAl Viro __be32 *p; 26761da177e4SLinus Torvalds 2677c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2678c0eae66eSBenny Halevy if (unlikely(!p)) 2679c0eae66eSBenny Halevy goto out_overflow; 2680cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 26811da177e4SLinus Torvalds *savep = xdr->p; 26821da177e4SLinus Torvalds return 0; 2683c0eae66eSBenny Halevy out_overflow: 2684c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2685c0eae66eSBenny Halevy return -EIO; 26861da177e4SLinus Torvalds } 26871da177e4SLinus Torvalds 26881da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 26891da177e4SLinus Torvalds { 26901da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 26911da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 26921da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 26931da177e4SLinus Torvalds } else 26941da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 269544109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 26961da177e4SLinus Torvalds return 0; 26971da177e4SLinus Torvalds } 26981da177e4SLinus Torvalds 26991da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 27001da177e4SLinus Torvalds { 27018687b63aSAl Viro __be32 *p; 2702409924e4STrond Myklebust int ret = 0; 27031da177e4SLinus Torvalds 27041da177e4SLinus Torvalds *type = 0; 27051da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 27061da177e4SLinus Torvalds return -EIO; 27071da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2708c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2709c0eae66eSBenny Halevy if (unlikely(!p)) 2710c0eae66eSBenny Halevy goto out_overflow; 2711cccddf4fSBenny Halevy *type = be32_to_cpup(p); 27121da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 27133110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 27141da177e4SLinus Torvalds return -EIO; 27151da177e4SLinus Torvalds } 27161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2717409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 27181da177e4SLinus Torvalds } 2719bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2720409924e4STrond Myklebust return ret; 2721c0eae66eSBenny Halevy out_overflow: 2722c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2723c0eae66eSBenny Halevy return -EIO; 27241da177e4SLinus Torvalds } 27251da177e4SLinus Torvalds 27261da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 27271da177e4SLinus Torvalds { 27288687b63aSAl Viro __be32 *p; 2729409924e4STrond Myklebust int ret = 0; 27301da177e4SLinus Torvalds 27311da177e4SLinus Torvalds *change = 0; 27321da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 27331da177e4SLinus Torvalds return -EIO; 27341da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2735c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2736c0eae66eSBenny Halevy if (unlikely(!p)) 2737c0eae66eSBenny Halevy goto out_overflow; 2738cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 27391da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2740409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 27411da177e4SLinus Torvalds } 27423110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 27431da177e4SLinus Torvalds (unsigned long long)*change); 2744409924e4STrond Myklebust return ret; 2745c0eae66eSBenny Halevy out_overflow: 2746c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2747c0eae66eSBenny Halevy return -EIO; 27481da177e4SLinus Torvalds } 27491da177e4SLinus Torvalds 27501da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 27511da177e4SLinus Torvalds { 27528687b63aSAl Viro __be32 *p; 2753409924e4STrond Myklebust int ret = 0; 27541da177e4SLinus Torvalds 27551da177e4SLinus Torvalds *size = 0; 27561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 27571da177e4SLinus Torvalds return -EIO; 27581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2759c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2760c0eae66eSBenny Halevy if (unlikely(!p)) 2761c0eae66eSBenny Halevy goto out_overflow; 2762cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 27631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2764409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 27651da177e4SLinus Torvalds } 27663110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2767409924e4STrond Myklebust return ret; 2768c0eae66eSBenny Halevy out_overflow: 2769c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2770c0eae66eSBenny Halevy return -EIO; 27711da177e4SLinus Torvalds } 27721da177e4SLinus Torvalds 27731da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27741da177e4SLinus Torvalds { 27758687b63aSAl Viro __be32 *p; 27761da177e4SLinus Torvalds 27771da177e4SLinus Torvalds *res = 0; 27781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 27791da177e4SLinus Torvalds return -EIO; 27801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2781c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2782c0eae66eSBenny Halevy if (unlikely(!p)) 2783c0eae66eSBenny Halevy goto out_overflow; 2784cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27851da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 27861da177e4SLinus Torvalds } 27873110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 27881da177e4SLinus Torvalds return 0; 2789c0eae66eSBenny Halevy out_overflow: 2790c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2791c0eae66eSBenny Halevy return -EIO; 27921da177e4SLinus Torvalds } 27931da177e4SLinus Torvalds 27941da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27951da177e4SLinus Torvalds { 27968687b63aSAl Viro __be32 *p; 27971da177e4SLinus Torvalds 27981da177e4SLinus Torvalds *res = 0; 27991da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 28001da177e4SLinus Torvalds return -EIO; 28011da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2802c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2803c0eae66eSBenny Halevy if (unlikely(!p)) 2804c0eae66eSBenny Halevy goto out_overflow; 2805cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28061da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 28071da177e4SLinus Torvalds } 28083110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 28091da177e4SLinus Torvalds return 0; 2810c0eae66eSBenny Halevy out_overflow: 2811c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2812c0eae66eSBenny Halevy return -EIO; 28131da177e4SLinus Torvalds } 28141da177e4SLinus Torvalds 28158b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 28161da177e4SLinus Torvalds { 28178687b63aSAl Viro __be32 *p; 2818409924e4STrond Myklebust int ret = 0; 28191da177e4SLinus Torvalds 28201da177e4SLinus Torvalds fsid->major = 0; 28211da177e4SLinus Torvalds fsid->minor = 0; 28221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 28231da177e4SLinus Torvalds return -EIO; 28241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2825c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2826c0eae66eSBenny Halevy if (unlikely(!p)) 2827c0eae66eSBenny Halevy goto out_overflow; 28283ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2829cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 28301da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2831409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 28321da177e4SLinus Torvalds } 28333110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 28341da177e4SLinus Torvalds (unsigned long long)fsid->major, 28351da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2836409924e4STrond Myklebust return ret; 2837c0eae66eSBenny Halevy out_overflow: 2838c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2839c0eae66eSBenny Halevy return -EIO; 28401da177e4SLinus Torvalds } 28411da177e4SLinus Torvalds 28421da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28431da177e4SLinus Torvalds { 28448687b63aSAl Viro __be32 *p; 28451da177e4SLinus Torvalds 28461da177e4SLinus Torvalds *res = 60; 28471da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 28481da177e4SLinus Torvalds return -EIO; 28491da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2850c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2851c0eae66eSBenny Halevy if (unlikely(!p)) 2852c0eae66eSBenny Halevy goto out_overflow; 2853cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28541da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 28551da177e4SLinus Torvalds } 28563110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 28571da177e4SLinus Torvalds return 0; 2858c0eae66eSBenny Halevy out_overflow: 2859c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2860c0eae66eSBenny Halevy return -EIO; 28611da177e4SLinus Torvalds } 28621da177e4SLinus Torvalds 2863ae42c70aSBryan Schumaker static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap) 2864ae42c70aSBryan Schumaker { 2865ae42c70aSBryan Schumaker __be32 *p; 2866ae42c70aSBryan Schumaker 2867ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 2868ae42c70aSBryan Schumaker return -EIO; 2869ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 2870ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 2871ae42c70aSBryan Schumaker if (unlikely(!p)) 2872ae42c70aSBryan Schumaker goto out_overflow; 2873ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 2874ae42c70aSBryan Schumaker } 2875ae42c70aSBryan Schumaker return 0; 2876ae42c70aSBryan Schumaker out_overflow: 2877ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 2878ae42c70aSBryan Schumaker return -EIO; 2879ae42c70aSBryan Schumaker } 2880ae42c70aSBryan Schumaker 2881ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 2882ae42c70aSBryan Schumaker { 2883ae42c70aSBryan Schumaker __be32 *p; 2884ae42c70aSBryan Schumaker int len; 2885ae42c70aSBryan Schumaker 28867ad07353STrond Myklebust if (fh != NULL) 2887ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 2888ae42c70aSBryan Schumaker 2889ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 2890ae42c70aSBryan Schumaker return -EIO; 2891ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 2892ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 2893ae42c70aSBryan Schumaker if (unlikely(!p)) 2894ae42c70aSBryan Schumaker goto out_overflow; 2895ae42c70aSBryan Schumaker len = be32_to_cpup(p); 2896ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 2897ae42c70aSBryan Schumaker return -EIO; 2898ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 2899ae42c70aSBryan Schumaker if (unlikely(!p)) 2900ae42c70aSBryan Schumaker goto out_overflow; 29017ad07353STrond Myklebust if (fh != NULL) { 2902ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 29037ad07353STrond Myklebust fh->size = len; 29047ad07353STrond Myklebust } 2905ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 2906ae42c70aSBryan Schumaker } 2907ae42c70aSBryan Schumaker return 0; 2908ae42c70aSBryan Schumaker out_overflow: 2909ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 2910ae42c70aSBryan Schumaker return -EIO; 2911ae42c70aSBryan Schumaker } 2912ae42c70aSBryan Schumaker 29131da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29141da177e4SLinus Torvalds { 29158687b63aSAl Viro __be32 *p; 29161da177e4SLinus Torvalds 29171da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 29181da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 29191da177e4SLinus Torvalds return -EIO; 29201da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2921c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2922c0eae66eSBenny Halevy if (unlikely(!p)) 2923c0eae66eSBenny Halevy goto out_overflow; 2924cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29251da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 29261da177e4SLinus Torvalds } 29273110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 29281da177e4SLinus Torvalds return 0; 2929c0eae66eSBenny Halevy out_overflow: 2930c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2931c0eae66eSBenny Halevy return -EIO; 29321da177e4SLinus Torvalds } 29331da177e4SLinus Torvalds 29341da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 29351da177e4SLinus Torvalds { 29368687b63aSAl Viro __be32 *p; 2937409924e4STrond Myklebust int ret = 0; 29381da177e4SLinus Torvalds 29391da177e4SLinus Torvalds *fileid = 0; 29401da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 29411da177e4SLinus Torvalds return -EIO; 29421da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2943c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2944c0eae66eSBenny Halevy if (unlikely(!p)) 2945c0eae66eSBenny Halevy goto out_overflow; 2946cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 29471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2948409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 29491da177e4SLinus Torvalds } 29503110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2951409924e4STrond Myklebust return ret; 2952c0eae66eSBenny Halevy out_overflow: 2953c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2954c0eae66eSBenny Halevy return -EIO; 29551da177e4SLinus Torvalds } 29561da177e4SLinus Torvalds 295799baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 295899baf625SManoj Naik { 29598687b63aSAl Viro __be32 *p; 2960409924e4STrond Myklebust int ret = 0; 296199baf625SManoj Naik 296299baf625SManoj Naik *fileid = 0; 296399baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 296499baf625SManoj Naik return -EIO; 296599baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 2966c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2967c0eae66eSBenny Halevy if (unlikely(!p)) 2968c0eae66eSBenny Halevy goto out_overflow; 2969cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 297099baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2971409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 297299baf625SManoj Naik } 29733110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2974409924e4STrond Myklebust return ret; 2975c0eae66eSBenny Halevy out_overflow: 2976c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2977c0eae66eSBenny Halevy return -EIO; 297899baf625SManoj Naik } 297999baf625SManoj Naik 29801da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29811da177e4SLinus Torvalds { 29828687b63aSAl Viro __be32 *p; 29831da177e4SLinus Torvalds int status = 0; 29841da177e4SLinus Torvalds 29851da177e4SLinus Torvalds *res = 0; 29861da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 29871da177e4SLinus Torvalds return -EIO; 29881da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 2989c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2990c0eae66eSBenny Halevy if (unlikely(!p)) 2991c0eae66eSBenny Halevy goto out_overflow; 2992cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 29931da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 29941da177e4SLinus Torvalds } 29953110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 29961da177e4SLinus Torvalds return status; 2997c0eae66eSBenny Halevy out_overflow: 2998c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2999c0eae66eSBenny Halevy return -EIO; 30001da177e4SLinus Torvalds } 30011da177e4SLinus Torvalds 30021da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30031da177e4SLinus Torvalds { 30048687b63aSAl Viro __be32 *p; 30051da177e4SLinus Torvalds int status = 0; 30061da177e4SLinus Torvalds 30071da177e4SLinus Torvalds *res = 0; 30081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 30091da177e4SLinus Torvalds return -EIO; 30101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3011c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3012c0eae66eSBenny Halevy if (unlikely(!p)) 3013c0eae66eSBenny Halevy goto out_overflow; 3014cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 30161da177e4SLinus Torvalds } 30173110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 30181da177e4SLinus Torvalds return status; 3019c0eae66eSBenny Halevy out_overflow: 3020c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3021c0eae66eSBenny Halevy return -EIO; 30221da177e4SLinus Torvalds } 30231da177e4SLinus Torvalds 30241da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30251da177e4SLinus Torvalds { 30268687b63aSAl Viro __be32 *p; 30271da177e4SLinus Torvalds int status = 0; 30281da177e4SLinus Torvalds 30291da177e4SLinus Torvalds *res = 0; 30301da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 30311da177e4SLinus Torvalds return -EIO; 30321da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3033c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3034c0eae66eSBenny Halevy if (unlikely(!p)) 3035c0eae66eSBenny Halevy goto out_overflow; 3036cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30371da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 30381da177e4SLinus Torvalds } 30393110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 30401da177e4SLinus Torvalds return status; 3041c0eae66eSBenny Halevy out_overflow: 3042c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3043c0eae66eSBenny Halevy return -EIO; 30441da177e4SLinus Torvalds } 30451da177e4SLinus Torvalds 30467aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 30477aaa0b3bSManoj Naik { 3048464ad6b1SChuck Lever u32 n; 30498687b63aSAl Viro __be32 *p; 30507aaa0b3bSManoj Naik int status = 0; 30517aaa0b3bSManoj Naik 3052c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3053c0eae66eSBenny Halevy if (unlikely(!p)) 3054c0eae66eSBenny Halevy goto out_overflow; 3055cccddf4fSBenny Halevy n = be32_to_cpup(p); 305633a43f28SAndy Adamson if (n == 0) 305733a43f28SAndy Adamson goto root_path; 30587aaa0b3bSManoj Naik dprintk("path "); 30597aaa0b3bSManoj Naik path->ncomponents = 0; 30607aaa0b3bSManoj Naik while (path->ncomponents < n) { 30617aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 30627aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 30637aaa0b3bSManoj Naik if (unlikely(status != 0)) 30647aaa0b3bSManoj Naik goto out_eio; 30657aaa0b3bSManoj Naik if (path->ncomponents != n) 30667aaa0b3bSManoj Naik dprintk("/"); 30677aaa0b3bSManoj Naik dprintk("%s", component->data); 30687aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 30697aaa0b3bSManoj Naik path->ncomponents++; 30707aaa0b3bSManoj Naik else { 30717aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 30727aaa0b3bSManoj Naik goto out_eio; 30737aaa0b3bSManoj Naik } 30747aaa0b3bSManoj Naik } 30757aaa0b3bSManoj Naik out: 30767aaa0b3bSManoj Naik dprintk("\n"); 30777aaa0b3bSManoj Naik return status; 307833a43f28SAndy Adamson root_path: 307933a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 308033a43f28SAndy Adamson path->ncomponents = 1; 308133a43f28SAndy Adamson path->components[0].len=0; 308233a43f28SAndy Adamson path->components[0].data=NULL; 308333a43f28SAndy Adamson dprintk("path /\n"); 308433a43f28SAndy Adamson goto out; 30857aaa0b3bSManoj Naik out_eio: 30867aaa0b3bSManoj Naik dprintk(" status %d", status); 30877aaa0b3bSManoj Naik status = -EIO; 30887aaa0b3bSManoj Naik goto out; 3089c0eae66eSBenny Halevy out_overflow: 3090c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3091c0eae66eSBenny Halevy return -EIO; 30927aaa0b3bSManoj Naik } 30937aaa0b3bSManoj Naik 30947aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3095683b57b4STrond Myklebust { 3096683b57b4STrond Myklebust int n; 30978687b63aSAl Viro __be32 *p; 3098683b57b4STrond Myklebust int status = -EIO; 3099683b57b4STrond Myklebust 3100683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3101683b57b4STrond Myklebust goto out; 3102683b57b4STrond Myklebust status = 0; 3103683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3104683b57b4STrond Myklebust goto out; 31053110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 31067aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3107683b57b4STrond Myklebust if (unlikely(status != 0)) 3108683b57b4STrond Myklebust goto out; 3109c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3110c0eae66eSBenny Halevy if (unlikely(!p)) 3111c0eae66eSBenny Halevy goto out_overflow; 3112cccddf4fSBenny Halevy n = be32_to_cpup(p); 3113683b57b4STrond Myklebust if (n <= 0) 3114683b57b4STrond Myklebust goto out_eio; 3115683b57b4STrond Myklebust res->nlocations = 0; 3116683b57b4STrond Myklebust while (res->nlocations < n) { 3117464ad6b1SChuck Lever u32 m; 31187aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3119683b57b4STrond Myklebust 3120c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3121c0eae66eSBenny Halevy if (unlikely(!p)) 3122c0eae66eSBenny Halevy goto out_overflow; 3123cccddf4fSBenny Halevy m = be32_to_cpup(p); 31247aaa0b3bSManoj Naik 31257aaa0b3bSManoj Naik loc->nservers = 0; 31263110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 31277aaa0b3bSManoj Naik while (loc->nservers < m) { 31287aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 31297aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3130683b57b4STrond Myklebust if (unlikely(status != 0)) 3131683b57b4STrond Myklebust goto out_eio; 31327aaa0b3bSManoj Naik dprintk("%s ", server->data); 31337aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 31347aaa0b3bSManoj Naik loc->nservers++; 31357aaa0b3bSManoj Naik else { 3136464ad6b1SChuck Lever unsigned int i; 3137464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3138464ad6b1SChuck Lever "returned for location %u\n", 31393110ff80SHarvey Harrison __func__, 3140464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3141464ad6b1SChuck Lever m, res->nlocations); 31427aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 31432e42c3e2STrond Myklebust unsigned int len; 31447aaa0b3bSManoj Naik char *data; 31457aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3146683b57b4STrond Myklebust if (unlikely(status != 0)) 3147683b57b4STrond Myklebust goto out_eio; 31487aaa0b3bSManoj Naik } 31497aaa0b3bSManoj Naik } 31507aaa0b3bSManoj Naik } 31517aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 31527aaa0b3bSManoj Naik if (unlikely(status != 0)) 31537aaa0b3bSManoj Naik goto out_eio; 31547aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3155683b57b4STrond Myklebust res->nlocations++; 3156683b57b4STrond Myklebust } 3157409924e4STrond Myklebust if (res->nlocations != 0) 3158409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3159683b57b4STrond Myklebust out: 31603110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3161683b57b4STrond Myklebust return status; 3162c0eae66eSBenny Halevy out_overflow: 3163c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3164683b57b4STrond Myklebust out_eio: 3165683b57b4STrond Myklebust status = -EIO; 3166683b57b4STrond Myklebust goto out; 3167683b57b4STrond Myklebust } 3168683b57b4STrond Myklebust 31691da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31701da177e4SLinus Torvalds { 31718687b63aSAl Viro __be32 *p; 31721da177e4SLinus Torvalds int status = 0; 31731da177e4SLinus Torvalds 31741da177e4SLinus Torvalds *res = 0; 31751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 31761da177e4SLinus Torvalds return -EIO; 31771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3178c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3179c0eae66eSBenny Halevy if (unlikely(!p)) 3180c0eae66eSBenny Halevy goto out_overflow; 3181cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 31821da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 31831da177e4SLinus Torvalds } 31843110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 31851da177e4SLinus Torvalds return status; 3186c0eae66eSBenny Halevy out_overflow: 3187c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3188c0eae66eSBenny Halevy return -EIO; 31891da177e4SLinus Torvalds } 31901da177e4SLinus Torvalds 31911da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 31921da177e4SLinus Torvalds { 31938687b63aSAl Viro __be32 *p; 31941da177e4SLinus Torvalds int status = 0; 31951da177e4SLinus Torvalds 31961da177e4SLinus Torvalds *maxlink = 1; 31971da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 31981da177e4SLinus Torvalds return -EIO; 31991da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3200c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3201c0eae66eSBenny Halevy if (unlikely(!p)) 3202c0eae66eSBenny Halevy goto out_overflow; 3203cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 32041da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 32051da177e4SLinus Torvalds } 32063110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 32071da177e4SLinus Torvalds return status; 3208c0eae66eSBenny Halevy out_overflow: 3209c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3210c0eae66eSBenny Halevy return -EIO; 32111da177e4SLinus Torvalds } 32121da177e4SLinus Torvalds 32131da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 32141da177e4SLinus Torvalds { 32158687b63aSAl Viro __be32 *p; 32161da177e4SLinus Torvalds int status = 0; 32171da177e4SLinus Torvalds 32181da177e4SLinus Torvalds *maxname = 1024; 32191da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 32201da177e4SLinus Torvalds return -EIO; 32211da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3222c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3223c0eae66eSBenny Halevy if (unlikely(!p)) 3224c0eae66eSBenny Halevy goto out_overflow; 3225cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 32261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 32271da177e4SLinus Torvalds } 32283110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 32291da177e4SLinus Torvalds return status; 3230c0eae66eSBenny Halevy out_overflow: 3231c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3232c0eae66eSBenny Halevy return -EIO; 32331da177e4SLinus Torvalds } 32341da177e4SLinus Torvalds 32351da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32361da177e4SLinus Torvalds { 32378687b63aSAl Viro __be32 *p; 32381da177e4SLinus Torvalds int status = 0; 32391da177e4SLinus Torvalds 32401da177e4SLinus Torvalds *res = 1024; 32411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 32421da177e4SLinus Torvalds return -EIO; 32431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 32441da177e4SLinus Torvalds uint64_t maxread; 3245c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3246c0eae66eSBenny Halevy if (unlikely(!p)) 3247c0eae66eSBenny Halevy goto out_overflow; 3248cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 32491da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 32501da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 32511da177e4SLinus Torvalds *res = (uint32_t)maxread; 32521da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 32531da177e4SLinus Torvalds } 32543110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 32551da177e4SLinus Torvalds return status; 3256c0eae66eSBenny Halevy out_overflow: 3257c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3258c0eae66eSBenny Halevy return -EIO; 32591da177e4SLinus Torvalds } 32601da177e4SLinus Torvalds 32611da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32621da177e4SLinus Torvalds { 32638687b63aSAl Viro __be32 *p; 32641da177e4SLinus Torvalds int status = 0; 32651da177e4SLinus Torvalds 32661da177e4SLinus Torvalds *res = 1024; 32671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 32681da177e4SLinus Torvalds return -EIO; 32691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 32701da177e4SLinus Torvalds uint64_t maxwrite; 3271c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3272c0eae66eSBenny Halevy if (unlikely(!p)) 3273c0eae66eSBenny Halevy goto out_overflow; 3274cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 32751da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 32761da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 32771da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 32781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 32791da177e4SLinus Torvalds } 32803110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 32811da177e4SLinus Torvalds return status; 3282c0eae66eSBenny Halevy out_overflow: 3283c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3284c0eae66eSBenny Halevy return -EIO; 32851da177e4SLinus Torvalds } 32861da177e4SLinus Torvalds 3287bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 32881da177e4SLinus Torvalds { 3289bca79478STrond Myklebust uint32_t tmp; 32908687b63aSAl Viro __be32 *p; 3291409924e4STrond Myklebust int ret = 0; 32921da177e4SLinus Torvalds 32931da177e4SLinus Torvalds *mode = 0; 32941da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 32951da177e4SLinus Torvalds return -EIO; 32961da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3297c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3298c0eae66eSBenny Halevy if (unlikely(!p)) 3299c0eae66eSBenny Halevy goto out_overflow; 3300cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3301bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 33021da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3303409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 33041da177e4SLinus Torvalds } 33053110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3306409924e4STrond Myklebust return ret; 3307c0eae66eSBenny Halevy out_overflow: 3308c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3309c0eae66eSBenny Halevy return -EIO; 33101da177e4SLinus Torvalds } 33111da177e4SLinus Torvalds 33121da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 33131da177e4SLinus Torvalds { 33148687b63aSAl Viro __be32 *p; 3315409924e4STrond Myklebust int ret = 0; 33161da177e4SLinus Torvalds 33171da177e4SLinus Torvalds *nlink = 1; 33181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 33191da177e4SLinus Torvalds return -EIO; 33201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3321c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3322c0eae66eSBenny Halevy if (unlikely(!p)) 3323c0eae66eSBenny Halevy goto out_overflow; 3324cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 33251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3326409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 33271da177e4SLinus Torvalds } 33283110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3329409924e4STrond Myklebust return ret; 3330c0eae66eSBenny Halevy out_overflow: 3331c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3332c0eae66eSBenny Halevy return -EIO; 33331da177e4SLinus Torvalds } 33341da177e4SLinus Torvalds 333580e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 333680e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *uid, int may_sleep) 33371da177e4SLinus Torvalds { 33388687b63aSAl Viro uint32_t len; 33398687b63aSAl Viro __be32 *p; 3340409924e4STrond Myklebust int ret = 0; 33411da177e4SLinus Torvalds 33421da177e4SLinus Torvalds *uid = -2; 33431da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 33441da177e4SLinus Torvalds return -EIO; 33451da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3346c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3347c0eae66eSBenny Halevy if (unlikely(!p)) 3348c0eae66eSBenny Halevy goto out_overflow; 3349cccddf4fSBenny Halevy len = be32_to_cpup(p); 3350c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3351c0eae66eSBenny Halevy if (unlikely(!p)) 3352c0eae66eSBenny Halevy goto out_overflow; 335380e52aceSTrond Myklebust if (!may_sleep) { 335480e52aceSTrond Myklebust /* do nothing */ 335580e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3356409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3357409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3358409924e4STrond Myklebust else 33591da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 33603110ff80SHarvey Harrison __func__); 33611da177e4SLinus Torvalds } else 3362fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 33633110ff80SHarvey Harrison __func__, len); 33641da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 33651da177e4SLinus Torvalds } 33663110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3367409924e4STrond Myklebust return ret; 3368c0eae66eSBenny Halevy out_overflow: 3369c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3370c0eae66eSBenny Halevy return -EIO; 33711da177e4SLinus Torvalds } 33721da177e4SLinus Torvalds 337380e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 337480e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *gid, int may_sleep) 33751da177e4SLinus Torvalds { 33768687b63aSAl Viro uint32_t len; 33778687b63aSAl Viro __be32 *p; 3378409924e4STrond Myklebust int ret = 0; 33791da177e4SLinus Torvalds 33801da177e4SLinus Torvalds *gid = -2; 33811da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 33821da177e4SLinus Torvalds return -EIO; 33831da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3384c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3385c0eae66eSBenny Halevy if (unlikely(!p)) 3386c0eae66eSBenny Halevy goto out_overflow; 3387cccddf4fSBenny Halevy len = be32_to_cpup(p); 3388c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3389c0eae66eSBenny Halevy if (unlikely(!p)) 3390c0eae66eSBenny Halevy goto out_overflow; 339180e52aceSTrond Myklebust if (!may_sleep) { 339280e52aceSTrond Myklebust /* do nothing */ 339380e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3394409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3395409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3396409924e4STrond Myklebust else 33971da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 33983110ff80SHarvey Harrison __func__); 33991da177e4SLinus Torvalds } else 3400fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 34013110ff80SHarvey Harrison __func__, len); 34021da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 34031da177e4SLinus Torvalds } 34043110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3405409924e4STrond Myklebust return ret; 3406c0eae66eSBenny Halevy out_overflow: 3407c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3408c0eae66eSBenny Halevy return -EIO; 34091da177e4SLinus Torvalds } 34101da177e4SLinus Torvalds 34111da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 34121da177e4SLinus Torvalds { 34138687b63aSAl Viro uint32_t major = 0, minor = 0; 34148687b63aSAl Viro __be32 *p; 3415409924e4STrond Myklebust int ret = 0; 34161da177e4SLinus Torvalds 34171da177e4SLinus Torvalds *rdev = MKDEV(0,0); 34181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 34191da177e4SLinus Torvalds return -EIO; 34201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 34211da177e4SLinus Torvalds dev_t tmp; 34221da177e4SLinus Torvalds 3423c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3424c0eae66eSBenny Halevy if (unlikely(!p)) 3425c0eae66eSBenny Halevy goto out_overflow; 34266f723f77SBenny Halevy major = be32_to_cpup(p++); 3427cccddf4fSBenny Halevy minor = be32_to_cpup(p); 34281da177e4SLinus Torvalds tmp = MKDEV(major, minor); 34291da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 34301da177e4SLinus Torvalds *rdev = tmp; 34311da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3432409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 34331da177e4SLinus Torvalds } 34343110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3435409924e4STrond Myklebust return ret; 3436c0eae66eSBenny Halevy out_overflow: 3437c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3438c0eae66eSBenny Halevy return -EIO; 34391da177e4SLinus Torvalds } 34401da177e4SLinus Torvalds 34411da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34421da177e4SLinus Torvalds { 34438687b63aSAl Viro __be32 *p; 34441da177e4SLinus Torvalds int status = 0; 34451da177e4SLinus Torvalds 34461da177e4SLinus Torvalds *res = 0; 34471da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 34481da177e4SLinus Torvalds return -EIO; 34491da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3450c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3451c0eae66eSBenny Halevy if (unlikely(!p)) 3452c0eae66eSBenny Halevy goto out_overflow; 3453cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34541da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 34551da177e4SLinus Torvalds } 34563110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 34571da177e4SLinus Torvalds return status; 3458c0eae66eSBenny Halevy out_overflow: 3459c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3460c0eae66eSBenny Halevy return -EIO; 34611da177e4SLinus Torvalds } 34621da177e4SLinus Torvalds 34631da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34641da177e4SLinus Torvalds { 34658687b63aSAl Viro __be32 *p; 34661da177e4SLinus Torvalds int status = 0; 34671da177e4SLinus Torvalds 34681da177e4SLinus Torvalds *res = 0; 34691da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 34701da177e4SLinus Torvalds return -EIO; 34711da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3472c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3473c0eae66eSBenny Halevy if (unlikely(!p)) 3474c0eae66eSBenny Halevy goto out_overflow; 3475cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34761da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 34771da177e4SLinus Torvalds } 34783110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 34791da177e4SLinus Torvalds return status; 3480c0eae66eSBenny Halevy out_overflow: 3481c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3482c0eae66eSBenny Halevy return -EIO; 34831da177e4SLinus Torvalds } 34841da177e4SLinus Torvalds 34851da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34861da177e4SLinus Torvalds { 34878687b63aSAl Viro __be32 *p; 34881da177e4SLinus Torvalds int status = 0; 34891da177e4SLinus Torvalds 34901da177e4SLinus Torvalds *res = 0; 34911da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 34921da177e4SLinus Torvalds return -EIO; 34931da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3494c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3495c0eae66eSBenny Halevy if (unlikely(!p)) 3496c0eae66eSBenny Halevy goto out_overflow; 3497cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34981da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 34991da177e4SLinus Torvalds } 35003110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 35011da177e4SLinus Torvalds return status; 3502c0eae66eSBenny Halevy out_overflow: 3503c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3504c0eae66eSBenny Halevy return -EIO; 35051da177e4SLinus Torvalds } 35061da177e4SLinus Torvalds 35071da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 35081da177e4SLinus Torvalds { 35098687b63aSAl Viro __be32 *p; 3510409924e4STrond Myklebust int ret = 0; 35111da177e4SLinus Torvalds 35121da177e4SLinus Torvalds *used = 0; 35131da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 35141da177e4SLinus Torvalds return -EIO; 35151da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3516c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3517c0eae66eSBenny Halevy if (unlikely(!p)) 3518c0eae66eSBenny Halevy goto out_overflow; 3519cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 35201da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3521409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 35221da177e4SLinus Torvalds } 35233110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 35241da177e4SLinus Torvalds (unsigned long long)*used); 3525409924e4STrond Myklebust return ret; 3526c0eae66eSBenny Halevy out_overflow: 3527c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3528c0eae66eSBenny Halevy return -EIO; 35291da177e4SLinus Torvalds } 35301da177e4SLinus Torvalds 35311da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 35321da177e4SLinus Torvalds { 35338687b63aSAl Viro __be32 *p; 35341da177e4SLinus Torvalds uint64_t sec; 35351da177e4SLinus Torvalds uint32_t nsec; 35361da177e4SLinus Torvalds 3537c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3538c0eae66eSBenny Halevy if (unlikely(!p)) 3539c0eae66eSBenny Halevy goto out_overflow; 35403ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3541cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 35421da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 35431da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 35441da177e4SLinus Torvalds return 0; 3545c0eae66eSBenny Halevy out_overflow: 3546c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3547c0eae66eSBenny Halevy return -EIO; 35481da177e4SLinus Torvalds } 35491da177e4SLinus Torvalds 35501da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 35511da177e4SLinus Torvalds { 35521da177e4SLinus Torvalds int status = 0; 35531da177e4SLinus Torvalds 35541da177e4SLinus Torvalds time->tv_sec = 0; 35551da177e4SLinus Torvalds time->tv_nsec = 0; 35561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 35571da177e4SLinus Torvalds return -EIO; 35581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 35591da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3560409924e4STrond Myklebust if (status == 0) 3561409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 35621da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 35631da177e4SLinus Torvalds } 35643110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 35651da177e4SLinus Torvalds return status; 35661da177e4SLinus Torvalds } 35671da177e4SLinus Torvalds 35681da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 35691da177e4SLinus Torvalds { 35701da177e4SLinus Torvalds int status = 0; 35711da177e4SLinus Torvalds 35721da177e4SLinus Torvalds time->tv_sec = 0; 35731da177e4SLinus Torvalds time->tv_nsec = 0; 35741da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 35751da177e4SLinus Torvalds return -EIO; 35761da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 35771da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3578409924e4STrond Myklebust if (status == 0) 3579409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 35801da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 35811da177e4SLinus Torvalds } 35823110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 35831da177e4SLinus Torvalds return status; 35841da177e4SLinus Torvalds } 35851da177e4SLinus Torvalds 35861da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 35871da177e4SLinus Torvalds { 35881da177e4SLinus Torvalds int status = 0; 35891da177e4SLinus Torvalds 35901da177e4SLinus Torvalds time->tv_sec = 0; 35911da177e4SLinus Torvalds time->tv_nsec = 0; 35921da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 35931da177e4SLinus Torvalds return -EIO; 35941da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 35951da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3596409924e4STrond Myklebust if (status == 0) 3597409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 35981da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 35991da177e4SLinus Torvalds } 36003110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 36011da177e4SLinus Torvalds return status; 36021da177e4SLinus Torvalds } 36031da177e4SLinus Torvalds 36048687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 36051da177e4SLinus Torvalds { 36061da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 36071da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 36081da177e4SLinus Torvalds 36091da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3610fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3611fe82a183SChuck Lever "%u %c %u\n", 36123110ff80SHarvey Harrison __func__, 36131da177e4SLinus Torvalds attrwords << 2, 36141da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 36151da177e4SLinus Torvalds nwords << 2); 36161da177e4SLinus Torvalds return -EIO; 36171da177e4SLinus Torvalds } 36181da177e4SLinus Torvalds return 0; 36191da177e4SLinus Torvalds } 36201da177e4SLinus Torvalds 36211da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36221da177e4SLinus Torvalds { 36238687b63aSAl Viro __be32 *p; 36241da177e4SLinus Torvalds 3625c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3626c0eae66eSBenny Halevy if (unlikely(!p)) 3627c0eae66eSBenny Halevy goto out_overflow; 36286f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 36293ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3630cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 36311da177e4SLinus Torvalds return 0; 3632c0eae66eSBenny Halevy out_overflow: 3633c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3634c0eae66eSBenny Halevy return -EIO; 36351da177e4SLinus Torvalds } 36361da177e4SLinus Torvalds 36371da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 36381da177e4SLinus Torvalds { 36398687b63aSAl Viro __be32 *p; 36401da177e4SLinus Torvalds uint32_t supp, acc; 36411da177e4SLinus Torvalds int status; 36421da177e4SLinus Torvalds 36431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 36441da177e4SLinus Torvalds if (status) 36451da177e4SLinus Torvalds return status; 3646c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3647c0eae66eSBenny Halevy if (unlikely(!p)) 3648c0eae66eSBenny Halevy goto out_overflow; 36496f723f77SBenny Halevy supp = be32_to_cpup(p++); 3650cccddf4fSBenny Halevy acc = be32_to_cpup(p); 36511da177e4SLinus Torvalds access->supported = supp; 36521da177e4SLinus Torvalds access->access = acc; 36531da177e4SLinus Torvalds return 0; 3654c0eae66eSBenny Halevy out_overflow: 3655c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3656c0eae66eSBenny Halevy return -EIO; 36571da177e4SLinus Torvalds } 36581da177e4SLinus Torvalds 365907d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 36601da177e4SLinus Torvalds { 36618687b63aSAl Viro __be32 *p; 366207d30434SBenny Halevy 366307d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 366407d30434SBenny Halevy if (likely(p)) { 366507d30434SBenny Halevy memcpy(buf, p, len); 366607d30434SBenny Halevy return 0; 366707d30434SBenny Halevy } 366807d30434SBenny Halevy print_overflow_msg(__func__, xdr); 366907d30434SBenny Halevy return -EIO; 367007d30434SBenny Halevy } 367107d30434SBenny Halevy 367207d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 367307d30434SBenny Halevy { 367407d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 36751da177e4SLinus Torvalds } 36761da177e4SLinus Torvalds 36771da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 36781da177e4SLinus Torvalds { 36791da177e4SLinus Torvalds int status; 36801da177e4SLinus Torvalds 36811da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3682c1d51931STrond Myklebust if (status != -EIO) 3683c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 368407d30434SBenny Halevy if (!status) 368507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 36861da177e4SLinus Torvalds return status; 36871da177e4SLinus Torvalds } 36881da177e4SLinus Torvalds 3689db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3690db942bbdSBenny Halevy { 3691db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 36921da177e4SLinus Torvalds } 36931da177e4SLinus Torvalds 36941da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 36951da177e4SLinus Torvalds { 36961da177e4SLinus Torvalds int status; 36971da177e4SLinus Torvalds 36981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3699db942bbdSBenny Halevy if (!status) 3700db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 37011da177e4SLinus Torvalds return status; 37021da177e4SLinus Torvalds } 37031da177e4SLinus Torvalds 37041da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 37051da177e4SLinus Torvalds { 37068687b63aSAl Viro __be32 *p; 37071da177e4SLinus Torvalds uint32_t bmlen; 37081da177e4SLinus Torvalds int status; 37091da177e4SLinus Torvalds 37101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 37111da177e4SLinus Torvalds if (status) 37121da177e4SLinus Torvalds return status; 37131da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 37141da177e4SLinus Torvalds return status; 3715c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3716c0eae66eSBenny Halevy if (unlikely(!p)) 3717c0eae66eSBenny Halevy goto out_overflow; 3718cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3719c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3720c0eae66eSBenny Halevy if (likely(p)) 37211da177e4SLinus Torvalds return 0; 3722c0eae66eSBenny Halevy out_overflow: 3723c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3724c0eae66eSBenny Halevy return -EIO; 37251da177e4SLinus Torvalds } 37261da177e4SLinus Torvalds 37271da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 37281da177e4SLinus Torvalds { 37298687b63aSAl Viro __be32 *savep; 37306c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 37311da177e4SLinus Torvalds int status; 37321da177e4SLinus Torvalds 37331da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 37341da177e4SLinus Torvalds goto xdr_error; 37351da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 37361da177e4SLinus Torvalds goto xdr_error; 37371da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 37381da177e4SLinus Torvalds goto xdr_error; 37391da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 37401da177e4SLinus Torvalds goto xdr_error; 37411da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 37421da177e4SLinus Torvalds goto xdr_error; 37431da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 37441da177e4SLinus Torvalds goto xdr_error; 37451da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 37461da177e4SLinus Torvalds goto xdr_error; 37471da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 37481da177e4SLinus Torvalds xdr_error: 37493110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 37501da177e4SLinus Torvalds return status; 37511da177e4SLinus Torvalds } 37521da177e4SLinus Torvalds 37531da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 37541da177e4SLinus Torvalds { 37558687b63aSAl Viro __be32 *savep; 37566c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 37571da177e4SLinus Torvalds int status; 37581da177e4SLinus Torvalds 37591da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 37601da177e4SLinus Torvalds goto xdr_error; 37611da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 37621da177e4SLinus Torvalds goto xdr_error; 37631da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 37641da177e4SLinus Torvalds goto xdr_error; 37651da177e4SLinus Torvalds 37661da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 37671da177e4SLinus Torvalds goto xdr_error; 37681da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 37691da177e4SLinus Torvalds goto xdr_error; 37701da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 37711da177e4SLinus Torvalds goto xdr_error; 37721da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 37731da177e4SLinus Torvalds goto xdr_error; 37741da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 37751da177e4SLinus Torvalds goto xdr_error; 37761da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 37771da177e4SLinus Torvalds goto xdr_error; 37781da177e4SLinus Torvalds 37791da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 37801da177e4SLinus Torvalds xdr_error: 37813110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 37821da177e4SLinus Torvalds return status; 37831da177e4SLinus Torvalds } 37841da177e4SLinus Torvalds 37851da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 37861da177e4SLinus Torvalds { 37878687b63aSAl Viro __be32 *savep; 37886c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 37891da177e4SLinus Torvalds int status; 37901da177e4SLinus Torvalds 37911da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 37921da177e4SLinus Torvalds goto xdr_error; 37931da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 37941da177e4SLinus Torvalds goto xdr_error; 37951da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 37961da177e4SLinus Torvalds goto xdr_error; 37971da177e4SLinus Torvalds 37981da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 37991da177e4SLinus Torvalds goto xdr_error; 38001da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 38011da177e4SLinus Torvalds goto xdr_error; 38021da177e4SLinus Torvalds 38031da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38041da177e4SLinus Torvalds xdr_error: 38053110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38061da177e4SLinus Torvalds return status; 38071da177e4SLinus Torvalds } 38081da177e4SLinus Torvalds 3809ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 3810ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 381180e52aceSTrond Myklebust const struct nfs_server *server, int may_sleep) 38121da177e4SLinus Torvalds { 3813bca79478STrond Myklebust int status; 3814bca79478STrond Myklebust umode_t fmode = 0; 381599baf625SManoj Naik uint64_t fileid; 3816ae42c70aSBryan Schumaker uint32_t type; 38171da177e4SLinus Torvalds 3818f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3819f26c7a78STrond Myklebust if (status < 0) 38201da177e4SLinus Torvalds goto xdr_error; 3821409924e4STrond Myklebust fattr->mode = 0; 3822409924e4STrond Myklebust if (status != 0) { 3823409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3824409924e4STrond Myklebust fattr->valid |= status; 3825409924e4STrond Myklebust } 38261da177e4SLinus Torvalds 3827f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3828f26c7a78STrond Myklebust if (status < 0) 38291da177e4SLinus Torvalds goto xdr_error; 3830409924e4STrond Myklebust fattr->valid |= status; 3831f26c7a78STrond Myklebust 3832f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3833f26c7a78STrond Myklebust if (status < 0) 38341da177e4SLinus Torvalds goto xdr_error; 3835409924e4STrond Myklebust fattr->valid |= status; 3836f26c7a78STrond Myklebust 3837f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3838f26c7a78STrond Myklebust if (status < 0) 38391da177e4SLinus Torvalds goto xdr_error; 3840409924e4STrond Myklebust fattr->valid |= status; 3841f26c7a78STrond Myklebust 3842ae42c70aSBryan Schumaker status = decode_attr_error(xdr, bitmap); 3843ae42c70aSBryan Schumaker if (status < 0) 3844ae42c70aSBryan Schumaker goto xdr_error; 3845ae42c70aSBryan Schumaker 3846ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 3847ae42c70aSBryan Schumaker if (status < 0) 3848ae42c70aSBryan Schumaker goto xdr_error; 3849ae42c70aSBryan Schumaker 3850f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3851f26c7a78STrond Myklebust if (status < 0) 38521da177e4SLinus Torvalds goto xdr_error; 3853409924e4STrond Myklebust fattr->valid |= status; 3854f26c7a78STrond Myklebust 3855f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 38567aaa0b3bSManoj Naik struct nfs4_fs_locations, 3857f26c7a78STrond Myklebust fattr)); 3858f26c7a78STrond Myklebust if (status < 0) 3859683b57b4STrond Myklebust goto xdr_error; 3860409924e4STrond Myklebust fattr->valid |= status; 3861f26c7a78STrond Myklebust 3862f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3863f26c7a78STrond Myklebust if (status < 0) 38641da177e4SLinus Torvalds goto xdr_error; 3865409924e4STrond Myklebust if (status != 0) { 38661da177e4SLinus Torvalds fattr->mode |= fmode; 3867409924e4STrond Myklebust fattr->valid |= status; 3868409924e4STrond Myklebust } 3869f26c7a78STrond Myklebust 3870f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3871f26c7a78STrond Myklebust if (status < 0) 38721da177e4SLinus Torvalds goto xdr_error; 3873409924e4STrond Myklebust fattr->valid |= status; 3874f26c7a78STrond Myklebust 387580e52aceSTrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, 387680e52aceSTrond Myklebust &fattr->uid, may_sleep); 3877f26c7a78STrond Myklebust if (status < 0) 38781da177e4SLinus Torvalds goto xdr_error; 3879409924e4STrond Myklebust fattr->valid |= status; 3880f26c7a78STrond Myklebust 388180e52aceSTrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, 388280e52aceSTrond Myklebust &fattr->gid, may_sleep); 3883f26c7a78STrond Myklebust if (status < 0) 38841da177e4SLinus Torvalds goto xdr_error; 3885409924e4STrond Myklebust fattr->valid |= status; 3886f26c7a78STrond Myklebust 3887f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3888f26c7a78STrond Myklebust if (status < 0) 38891da177e4SLinus Torvalds goto xdr_error; 3890409924e4STrond Myklebust fattr->valid |= status; 3891f26c7a78STrond Myklebust 3892f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3893f26c7a78STrond Myklebust if (status < 0) 38941da177e4SLinus Torvalds goto xdr_error; 3895409924e4STrond Myklebust fattr->valid |= status; 3896f26c7a78STrond Myklebust 3897f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3898f26c7a78STrond Myklebust if (status < 0) 38991da177e4SLinus Torvalds goto xdr_error; 3900409924e4STrond Myklebust fattr->valid |= status; 3901f26c7a78STrond Myklebust 3902f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3903f26c7a78STrond Myklebust if (status < 0) 39041da177e4SLinus Torvalds goto xdr_error; 3905409924e4STrond Myklebust fattr->valid |= status; 3906f26c7a78STrond Myklebust 3907f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3908f26c7a78STrond Myklebust if (status < 0) 39091da177e4SLinus Torvalds goto xdr_error; 3910409924e4STrond Myklebust fattr->valid |= status; 3911f26c7a78STrond Myklebust 3912f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3913f26c7a78STrond Myklebust if (status < 0) 391499baf625SManoj Naik goto xdr_error; 39153201f3ddSTrond Myklebust if (status != 0 && !(fattr->valid & status)) { 391699baf625SManoj Naik fattr->fileid = fileid; 3917409924e4STrond Myklebust fattr->valid |= status; 3918409924e4STrond Myklebust } 3919f26c7a78STrond Myklebust 3920ae42c70aSBryan Schumaker xdr_error: 3921ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 3922ae42c70aSBryan Schumaker return status; 3923ae42c70aSBryan Schumaker } 3924ae42c70aSBryan Schumaker 3925ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 3926ae42c70aSBryan Schumaker struct nfs_fh *fh, const struct nfs_server *server, int may_sleep) 3927ae42c70aSBryan Schumaker { 3928ae42c70aSBryan Schumaker __be32 *savep; 3929ae42c70aSBryan Schumaker uint32_t attrlen, 3930ae42c70aSBryan Schumaker bitmap[2] = {0}; 3931ae42c70aSBryan Schumaker int status; 3932ae42c70aSBryan Schumaker 3933ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 3934ae42c70aSBryan Schumaker if (status < 0) 3935ae42c70aSBryan Schumaker goto xdr_error; 3936ae42c70aSBryan Schumaker 3937ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 3938ae42c70aSBryan Schumaker if (status < 0) 3939ae42c70aSBryan Schumaker goto xdr_error; 3940ae42c70aSBryan Schumaker 3941ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 3942ae42c70aSBryan Schumaker if (status < 0) 3943ae42c70aSBryan Schumaker goto xdr_error; 3944ae42c70aSBryan Schumaker 3945ae42c70aSBryan Schumaker status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep); 3946ae42c70aSBryan Schumaker if (status < 0) 3947ae42c70aSBryan Schumaker goto xdr_error; 3948ae42c70aSBryan Schumaker 3949f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 39501da177e4SLinus Torvalds xdr_error: 39513110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 39521da177e4SLinus Torvalds return status; 39531da177e4SLinus Torvalds } 39541da177e4SLinus Torvalds 3955ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 3956ae42c70aSBryan Schumaker const struct nfs_server *server, int may_sleep) 3957ae42c70aSBryan Schumaker { 3958ae42c70aSBryan Schumaker return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep); 3959ae42c70aSBryan Schumaker } 39601da177e4SLinus Torvalds 39611da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 39621da177e4SLinus Torvalds { 39638687b63aSAl Viro __be32 *savep; 39641da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 39651da177e4SLinus Torvalds int status; 39661da177e4SLinus Torvalds 39671da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 39681da177e4SLinus Torvalds goto xdr_error; 39691da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 39701da177e4SLinus Torvalds goto xdr_error; 39711da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 39721da177e4SLinus Torvalds goto xdr_error; 39731da177e4SLinus Torvalds 39741da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 39751da177e4SLinus Torvalds 39761da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 39771da177e4SLinus Torvalds goto xdr_error; 39781da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 39791da177e4SLinus Torvalds goto xdr_error; 39801da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 39811da177e4SLinus Torvalds goto xdr_error; 39821da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 39831da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 39841da177e4SLinus Torvalds goto xdr_error; 39851da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 39861da177e4SLinus Torvalds 39871da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 39881da177e4SLinus Torvalds xdr_error: 39893110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 39901da177e4SLinus Torvalds return status; 39911da177e4SLinus Torvalds } 39921da177e4SLinus Torvalds 39931da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 39941da177e4SLinus Torvalds { 39958687b63aSAl Viro __be32 *p; 39961da177e4SLinus Torvalds uint32_t len; 39971da177e4SLinus Torvalds int status; 39981da177e4SLinus Torvalds 39999936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 40009936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 40019936781dSTrond Myklebust 40021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 40031da177e4SLinus Torvalds if (status) 40041da177e4SLinus Torvalds return status; 40051da177e4SLinus Torvalds 4006c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4007c0eae66eSBenny Halevy if (unlikely(!p)) 4008c0eae66eSBenny Halevy goto out_overflow; 4009cccddf4fSBenny Halevy len = be32_to_cpup(p); 40101da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 40111da177e4SLinus Torvalds return -EIO; 40121da177e4SLinus Torvalds fh->size = len; 4013c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4014c0eae66eSBenny Halevy if (unlikely(!p)) 4015c0eae66eSBenny Halevy goto out_overflow; 401699398d06SBenny Halevy memcpy(fh->data, p, len); 40171da177e4SLinus Torvalds return 0; 4018c0eae66eSBenny Halevy out_overflow: 4019c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4020c0eae66eSBenny Halevy return -EIO; 40211da177e4SLinus Torvalds } 40221da177e4SLinus Torvalds 40231da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40241da177e4SLinus Torvalds { 40251da177e4SLinus Torvalds int status; 40261da177e4SLinus Torvalds 40271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 40281da177e4SLinus Torvalds if (status) 40291da177e4SLinus Torvalds return status; 40301da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 40311da177e4SLinus Torvalds } 40321da177e4SLinus Torvalds 40331da177e4SLinus Torvalds /* 40341da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 40351da177e4SLinus Torvalds */ 4036911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 40371da177e4SLinus Torvalds { 4038911d1aafSTrond Myklebust uint64_t offset, length, clientid; 40398687b63aSAl Viro __be32 *p; 4040911d1aafSTrond Myklebust uint32_t namelen, type; 40411da177e4SLinus Torvalds 4042babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4043c0eae66eSBenny Halevy if (unlikely(!p)) 4044c0eae66eSBenny Halevy goto out_overflow; 4045babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 40463ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4047babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4048babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4049911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4050911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4051911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4052911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4053911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4054911d1aafSTrond Myklebust if (type & 1) 4055911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4056911d1aafSTrond Myklebust fl->fl_pid = 0; 4057911d1aafSTrond Myklebust } 4058babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4059babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4060babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4061c0eae66eSBenny Halevy if (likely(p)) 40621da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4063c0eae66eSBenny Halevy out_overflow: 4064c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4065c0eae66eSBenny Halevy return -EIO; 40661da177e4SLinus Torvalds } 40671da177e4SLinus Torvalds 4068911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 40691da177e4SLinus Torvalds { 40701da177e4SLinus Torvalds int status; 40711da177e4SLinus Torvalds 40721da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4073c1d51931STrond Myklebust if (status == -EIO) 4074c1d51931STrond Myklebust goto out; 40751da177e4SLinus Torvalds if (status == 0) { 407607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 407707d30434SBenny Halevy if (unlikely(status)) 407807d30434SBenny Halevy goto out; 40791da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4080c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4081c1d51931STrond Myklebust if (res->open_seqid != NULL) 4082c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4083c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4084c1d51931STrond Myklebust out: 40851da177e4SLinus Torvalds return status; 40861da177e4SLinus Torvalds } 40871da177e4SLinus Torvalds 4088911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 40891da177e4SLinus Torvalds { 40901da177e4SLinus Torvalds int status; 40911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 40921da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4093911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 40941da177e4SLinus Torvalds return status; 40951da177e4SLinus Torvalds } 40961da177e4SLinus Torvalds 4097911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 40981da177e4SLinus Torvalds { 40991da177e4SLinus Torvalds int status; 41001da177e4SLinus Torvalds 41011da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4102c1d51931STrond Myklebust if (status != -EIO) 4103c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 410407d30434SBenny Halevy if (status == 0) 410507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41061da177e4SLinus Torvalds return status; 41071da177e4SLinus Torvalds } 41081da177e4SLinus Torvalds 4109d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4110d3c7b7ccSTrond Myklebust { 4111d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4112d3c7b7ccSTrond Myklebust } 4113d3c7b7ccSTrond Myklebust 41141da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 41151da177e4SLinus Torvalds { 41161da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 41171da177e4SLinus Torvalds } 41181da177e4SLinus Torvalds 41191da177e4SLinus Torvalds /* This is too sick! */ 41201da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 41211da177e4SLinus Torvalds { 41228687b63aSAl Viro __be32 *p; 41231da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 41241da177e4SLinus Torvalds 4125c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4126c0eae66eSBenny Halevy if (unlikely(!p)) 4127c0eae66eSBenny Halevy goto out_overflow; 41286f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 41291da177e4SLinus Torvalds switch (limit_type) { 41301da177e4SLinus Torvalds case 1: 4131cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 41321da177e4SLinus Torvalds break; 41331da177e4SLinus Torvalds case 2: 41346f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4135cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 41361da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 41371da177e4SLinus Torvalds } 41381da177e4SLinus Torvalds return 0; 4139c0eae66eSBenny Halevy out_overflow: 4140c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4141c0eae66eSBenny Halevy return -EIO; 41421da177e4SLinus Torvalds } 41431da177e4SLinus Torvalds 41441da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 41451da177e4SLinus Torvalds { 41468687b63aSAl Viro __be32 *p; 41471da177e4SLinus Torvalds uint32_t delegation_type; 414807d30434SBenny Halevy int status; 41491da177e4SLinus Torvalds 4150c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4151c0eae66eSBenny Halevy if (unlikely(!p)) 4152c0eae66eSBenny Halevy goto out_overflow; 4153cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 41541da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 41551da177e4SLinus Torvalds res->delegation_type = 0; 41561da177e4SLinus Torvalds return 0; 41571da177e4SLinus Torvalds } 415807d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 415907d30434SBenny Halevy if (unlikely(status)) 416007d30434SBenny Halevy return status; 4161c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4162c0eae66eSBenny Halevy if (unlikely(!p)) 4163c0eae66eSBenny Halevy goto out_overflow; 4164cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 416505d564feSAndy Adamson 41661da177e4SLinus Torvalds switch (delegation_type) { 41671da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 41681da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 41691da177e4SLinus Torvalds break; 41701da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 41711da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 41721da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 41731da177e4SLinus Torvalds return -EIO; 41741da177e4SLinus Torvalds } 41757539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4176c0eae66eSBenny Halevy out_overflow: 4177c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4178c0eae66eSBenny Halevy return -EIO; 41791da177e4SLinus Torvalds } 41801da177e4SLinus Torvalds 41811da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 41821da177e4SLinus Torvalds { 41838687b63aSAl Viro __be32 *p; 4184aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 41851da177e4SLinus Torvalds int status; 41861da177e4SLinus Torvalds 41871da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4188c1d51931STrond Myklebust if (status != -EIO) 4189c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 419007d30434SBenny Halevy if (!status) 419107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 419207d30434SBenny Halevy if (unlikely(status)) 41931da177e4SLinus Torvalds return status; 41941da177e4SLinus Torvalds 41951da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 41961da177e4SLinus Torvalds 4197c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4198c0eae66eSBenny Halevy if (unlikely(!p)) 4199c0eae66eSBenny Halevy goto out_overflow; 42006f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4201cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 42021da177e4SLinus Torvalds if (bmlen > 10) 42031da177e4SLinus Torvalds goto xdr_error; 42041da177e4SLinus Torvalds 4205c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4206c0eae66eSBenny Halevy if (unlikely(!p)) 4207c0eae66eSBenny Halevy goto out_overflow; 4208aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4209aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 42106f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4211aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4212aa53ed54SJeff Layton res->attrset[i] = 0; 4213aa53ed54SJeff Layton 42141da177e4SLinus Torvalds return decode_delegation(xdr, res); 42151da177e4SLinus Torvalds xdr_error: 42163110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 42171da177e4SLinus Torvalds return -EIO; 4218c0eae66eSBenny Halevy out_overflow: 4219c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4220c0eae66eSBenny Halevy return -EIO; 42211da177e4SLinus Torvalds } 42221da177e4SLinus Torvalds 42231da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 42241da177e4SLinus Torvalds { 42251da177e4SLinus Torvalds int status; 42261da177e4SLinus Torvalds 42271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4228c1d51931STrond Myklebust if (status != -EIO) 4229c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 423007d30434SBenny Halevy if (!status) 423107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 42321da177e4SLinus Torvalds return status; 42331da177e4SLinus Torvalds } 42341da177e4SLinus Torvalds 42351da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 42361da177e4SLinus Torvalds { 42371da177e4SLinus Torvalds int status; 42381da177e4SLinus Torvalds 42391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4240c1d51931STrond Myklebust if (status != -EIO) 4241c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 424207d30434SBenny Halevy if (!status) 424307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 42441da177e4SLinus Torvalds return status; 42451da177e4SLinus Torvalds } 42461da177e4SLinus Torvalds 42471da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 42481da177e4SLinus Torvalds { 42491da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 42501da177e4SLinus Torvalds } 42511da177e4SLinus Torvalds 42521da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 42531da177e4SLinus Torvalds { 42541da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 42551da177e4SLinus Torvalds } 42561da177e4SLinus Torvalds 42571da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 42581da177e4SLinus Torvalds { 42591da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 42608687b63aSAl Viro __be32 *p; 42611da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 42621da177e4SLinus Torvalds int status; 42631da177e4SLinus Torvalds 42641da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 42651da177e4SLinus Torvalds if (status) 42661da177e4SLinus Torvalds return status; 4267c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4268c0eae66eSBenny Halevy if (unlikely(!p)) 4269c0eae66eSBenny Halevy goto out_overflow; 42706f723f77SBenny Halevy eof = be32_to_cpup(p++); 4271cccddf4fSBenny Halevy count = be32_to_cpup(p); 42721da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 42731da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 42741da177e4SLinus Torvalds if (count > recvd) { 4275fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 42761da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 42771da177e4SLinus Torvalds count = recvd; 42781da177e4SLinus Torvalds eof = 0; 42791da177e4SLinus Torvalds } 42801da177e4SLinus Torvalds xdr_read_pages(xdr, count); 42811da177e4SLinus Torvalds res->eof = eof; 42821da177e4SLinus Torvalds res->count = count; 42831da177e4SLinus Torvalds return 0; 4284c0eae66eSBenny Halevy out_overflow: 4285c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4286c0eae66eSBenny Halevy return -EIO; 42871da177e4SLinus Torvalds } 42881da177e4SLinus Torvalds 42891da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 42901da177e4SLinus Torvalds { 42911da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 42921da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4293bcecff77SChuck Lever size_t hdrlen; 4294bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 4295bcecff77SChuck Lever int status; 42961da177e4SLinus Torvalds 42971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4298db942bbdSBenny Halevy if (!status) 4299db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4300db942bbdSBenny Halevy if (unlikely(status)) 43011da177e4SLinus Torvalds return status; 430244109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 430344109241SFred Isaman __func__, 4304eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4305eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4306eadf4598STrond Myklebust 43071da177e4SLinus Torvalds 4308db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 43091da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 43101da177e4SLinus Torvalds if (pglen > recvd) 43111da177e4SLinus Torvalds pglen = recvd; 43121da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 43131da177e4SLinus Torvalds 43147bda2cdfSJeff Layton 43151da177e4SLinus Torvalds return 0; 43161da177e4SLinus Torvalds } 43171da177e4SLinus Torvalds 43181da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 43191da177e4SLinus Torvalds { 43201da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 43211da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4322bcecff77SChuck Lever size_t hdrlen; 4323bcecff77SChuck Lever u32 len, recvd; 43248687b63aSAl Viro __be32 *p; 43251da177e4SLinus Torvalds int status; 43261da177e4SLinus Torvalds 43271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 43281da177e4SLinus Torvalds if (status) 43291da177e4SLinus Torvalds return status; 43301da177e4SLinus Torvalds 43311da177e4SLinus Torvalds /* Convert length of symlink */ 4332c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4333c0eae66eSBenny Halevy if (unlikely(!p)) 4334c0eae66eSBenny Halevy goto out_overflow; 4335cccddf4fSBenny Halevy len = be32_to_cpup(p); 43361da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4337fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 43381da177e4SLinus Torvalds return -ENAMETOOLONG; 43391da177e4SLinus Torvalds } 43401da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 43411da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 43421da177e4SLinus Torvalds if (recvd < len) { 4343fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 43441da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 43451da177e4SLinus Torvalds return -EIO; 43461da177e4SLinus Torvalds } 43471da177e4SLinus Torvalds xdr_read_pages(xdr, len); 43481da177e4SLinus Torvalds /* 43491da177e4SLinus Torvalds * The XDR encode routine has set things up so that 43501da177e4SLinus Torvalds * the link text will be copied directly into the 43511da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 43521da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 43531da177e4SLinus Torvalds * null-termination). 43541da177e4SLinus Torvalds */ 4355b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 43561da177e4SLinus Torvalds return 0; 4357c0eae66eSBenny Halevy out_overflow: 4358c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4359c0eae66eSBenny Halevy return -EIO; 43601da177e4SLinus Torvalds } 43611da177e4SLinus Torvalds 43621da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 43631da177e4SLinus Torvalds { 43641da177e4SLinus Torvalds int status; 43651da177e4SLinus Torvalds 43661da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 43671da177e4SLinus Torvalds if (status) 43681da177e4SLinus Torvalds goto out; 43691da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 43701da177e4SLinus Torvalds out: 43711da177e4SLinus Torvalds return status; 43721da177e4SLinus Torvalds } 43731da177e4SLinus Torvalds 43741da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 43751da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 43761da177e4SLinus Torvalds { 43771da177e4SLinus Torvalds int status; 43781da177e4SLinus Torvalds 43791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 43801da177e4SLinus Torvalds if (status) 43811da177e4SLinus Torvalds goto out; 43821da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 43831da177e4SLinus Torvalds goto out; 43841da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 43851da177e4SLinus Torvalds out: 43861da177e4SLinus Torvalds return status; 43871da177e4SLinus Torvalds } 43881da177e4SLinus Torvalds 43891da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 43901da177e4SLinus Torvalds { 43911da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 43921da177e4SLinus Torvalds } 43931da177e4SLinus Torvalds 439456ae19f3STrond Myklebust static int 439556ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 439656ae19f3STrond Myklebust { 439756ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 439856ae19f3STrond Myklebust } 439956ae19f3STrond Myklebust 4400029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4401029d105eSJ. Bruce Fields size_t *acl_len) 4402029d105eSJ. Bruce Fields { 44038687b63aSAl Viro __be32 *savep; 4404029d105eSJ. Bruce Fields uint32_t attrlen, 4405029d105eSJ. Bruce Fields bitmap[2] = {0}; 4406029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4407029d105eSJ. Bruce Fields int status; 4408029d105eSJ. Bruce Fields 4409029d105eSJ. Bruce Fields *acl_len = 0; 4410029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4411029d105eSJ. Bruce Fields goto out; 4412029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4413029d105eSJ. Bruce Fields goto out; 4414029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4415029d105eSJ. Bruce Fields goto out; 4416029d105eSJ. Bruce Fields 4417029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4418029d105eSJ. Bruce Fields return -EIO; 4419029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4420bcecff77SChuck Lever size_t hdrlen; 4421bcecff77SChuck Lever u32 recvd; 4422029d105eSJ. Bruce Fields 4423029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4424029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4425029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4426029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4427029d105eSJ. Bruce Fields if (attrlen > recvd) { 4428fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4429029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4430029d105eSJ. Bruce Fields attrlen, recvd); 4431029d105eSJ. Bruce Fields return -EINVAL; 4432029d105eSJ. Bruce Fields } 4433029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4434029d105eSJ. Bruce Fields *acl_len = attrlen; 44358c233cf9SJ. Bruce Fields } else 44368c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4437029d105eSJ. Bruce Fields 4438029d105eSJ. Bruce Fields out: 4439029d105eSJ. Bruce Fields return status; 4440029d105eSJ. Bruce Fields } 4441029d105eSJ. Bruce Fields 44421da177e4SLinus Torvalds static int 44431da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 44441da177e4SLinus Torvalds { 44451da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 44461da177e4SLinus Torvalds } 44471da177e4SLinus Torvalds 44489e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 44491da177e4SLinus Torvalds { 44508687b63aSAl Viro __be32 *p; 44511da177e4SLinus Torvalds uint32_t bmlen; 44521da177e4SLinus Torvalds int status; 44531da177e4SLinus Torvalds 44541da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 44551da177e4SLinus Torvalds if (status) 44561da177e4SLinus Torvalds return status; 4457c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4458c0eae66eSBenny Halevy if (unlikely(!p)) 4459c0eae66eSBenny Halevy goto out_overflow; 4460cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4461c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4462c0eae66eSBenny Halevy if (likely(p)) 44631da177e4SLinus Torvalds return 0; 4464c0eae66eSBenny Halevy out_overflow: 4465c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4466c0eae66eSBenny Halevy return -EIO; 44671da177e4SLinus Torvalds } 44681da177e4SLinus Torvalds 4469bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 44701da177e4SLinus Torvalds { 44718687b63aSAl Viro __be32 *p; 44721da177e4SLinus Torvalds uint32_t opnum; 44731da177e4SLinus Torvalds int32_t nfserr; 44741da177e4SLinus Torvalds 4475c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4476c0eae66eSBenny Halevy if (unlikely(!p)) 4477c0eae66eSBenny Halevy goto out_overflow; 44786f723f77SBenny Halevy opnum = be32_to_cpup(p++); 44791da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4480fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 44811da177e4SLinus Torvalds " %d\n", opnum); 44821da177e4SLinus Torvalds return -EIO; 44831da177e4SLinus Torvalds } 4484cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 44851da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4486c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4487c0eae66eSBenny Halevy if (unlikely(!p)) 4488c0eae66eSBenny Halevy goto out_overflow; 4489bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 4490bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 44911da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 44921da177e4SLinus Torvalds uint32_t len; 44931da177e4SLinus Torvalds 44941da177e4SLinus Torvalds /* skip netid string */ 4495c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4496c0eae66eSBenny Halevy if (unlikely(!p)) 4497c0eae66eSBenny Halevy goto out_overflow; 4498cccddf4fSBenny Halevy len = be32_to_cpup(p); 4499c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4500c0eae66eSBenny Halevy if (unlikely(!p)) 4501c0eae66eSBenny Halevy goto out_overflow; 45021da177e4SLinus Torvalds 45031da177e4SLinus Torvalds /* skip uaddr string */ 4504c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4505c0eae66eSBenny Halevy if (unlikely(!p)) 4506c0eae66eSBenny Halevy goto out_overflow; 4507cccddf4fSBenny Halevy len = be32_to_cpup(p); 4508c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4509c0eae66eSBenny Halevy if (unlikely(!p)) 4510c0eae66eSBenny Halevy goto out_overflow; 45111da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 45121da177e4SLinus Torvalds } else 4513856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 45141da177e4SLinus Torvalds 45151da177e4SLinus Torvalds return 0; 4516c0eae66eSBenny Halevy out_overflow: 4517c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4518c0eae66eSBenny Halevy return -EIO; 45191da177e4SLinus Torvalds } 45201da177e4SLinus Torvalds 45211da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 45221da177e4SLinus Torvalds { 45231da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 45241da177e4SLinus Torvalds } 45251da177e4SLinus Torvalds 45261da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 45271da177e4SLinus Torvalds { 45288687b63aSAl Viro __be32 *p; 45291da177e4SLinus Torvalds int status; 45301da177e4SLinus Torvalds 45311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 45321da177e4SLinus Torvalds if (status) 45331da177e4SLinus Torvalds return status; 45341da177e4SLinus Torvalds 4535c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4536c0eae66eSBenny Halevy if (unlikely(!p)) 4537c0eae66eSBenny Halevy goto out_overflow; 45386f723f77SBenny Halevy res->count = be32_to_cpup(p++); 45396f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 454099398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 45411da177e4SLinus Torvalds return 0; 4542c0eae66eSBenny Halevy out_overflow: 4543c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4544c0eae66eSBenny Halevy return -EIO; 45451da177e4SLinus Torvalds } 45461da177e4SLinus Torvalds 45471da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 45481da177e4SLinus Torvalds { 45491da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 45501da177e4SLinus Torvalds } 45511da177e4SLinus Torvalds 455299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 455399fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 455499fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 455599fe60d0SBenny Halevy { 455699fe60d0SBenny Halevy __be32 *p; 455799fe60d0SBenny Halevy uint32_t dummy; 45582460ba57SBenny Halevy char *dummy_str; 455999fe60d0SBenny Halevy int status; 456099fe60d0SBenny Halevy struct nfs_client *clp = res->client; 456199fe60d0SBenny Halevy 456299fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 456399fe60d0SBenny Halevy if (status) 456499fe60d0SBenny Halevy return status; 456599fe60d0SBenny Halevy 4566c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4567c0eae66eSBenny Halevy if (unlikely(!p)) 4568c0eae66eSBenny Halevy goto out_overflow; 4569cccddf4fSBenny Halevy xdr_decode_hyper(p, &clp->cl_ex_clid); 4570c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4571c0eae66eSBenny Halevy if (unlikely(!p)) 4572c0eae66eSBenny Halevy goto out_overflow; 45736f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 45746f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 457599fe60d0SBenny Halevy 457699fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4577cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 457899fe60d0SBenny Halevy if (dummy != SP4_NONE) 457999fe60d0SBenny Halevy return -EIO; 458099fe60d0SBenny Halevy 458199fe60d0SBenny Halevy /* Throw away minor_id */ 4582c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4583c0eae66eSBenny Halevy if (unlikely(!p)) 4584c0eae66eSBenny Halevy goto out_overflow; 458599fe60d0SBenny Halevy 458699fe60d0SBenny Halevy /* Throw away Major id */ 45872460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45882460ba57SBenny Halevy if (unlikely(status)) 45892460ba57SBenny Halevy return status; 459099fe60d0SBenny Halevy 459199fe60d0SBenny Halevy /* Throw away server_scope */ 45922460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45932460ba57SBenny Halevy if (unlikely(status)) 45942460ba57SBenny Halevy return status; 459599fe60d0SBenny Halevy 459699fe60d0SBenny Halevy /* Throw away Implementation id array */ 45972460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45982460ba57SBenny Halevy if (unlikely(status)) 45992460ba57SBenny Halevy return status; 460099fe60d0SBenny Halevy 460199fe60d0SBenny Halevy return 0; 4602c0eae66eSBenny Halevy out_overflow: 4603c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4604c0eae66eSBenny Halevy return -EIO; 460599fe60d0SBenny Halevy } 4606fc931582SAndy Adamson 4607fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4608fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4609fc931582SAndy Adamson { 4610fc931582SAndy Adamson __be32 *p; 4611fc931582SAndy Adamson u32 nr_attrs; 4612fc931582SAndy Adamson 4613c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4614c0eae66eSBenny Halevy if (unlikely(!p)) 4615c0eae66eSBenny Halevy goto out_overflow; 46166f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 46176f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 46186f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 46196f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 46206f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 46216f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4622cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4623fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4624fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4625fc931582SAndy Adamson __func__, nr_attrs); 4626fc931582SAndy Adamson return -EINVAL; 4627fc931582SAndy Adamson } 4628c0eae66eSBenny Halevy if (nr_attrs == 1) { 4629c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4630c0eae66eSBenny Halevy if (unlikely(!p)) 4631c0eae66eSBenny Halevy goto out_overflow; 4632c0eae66eSBenny Halevy } 4633fc931582SAndy Adamson return 0; 4634c0eae66eSBenny Halevy out_overflow: 4635c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4636c0eae66eSBenny Halevy return -EIO; 4637fc931582SAndy Adamson } 4638fc931582SAndy Adamson 4639e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4640e78291e4SBenny Halevy { 4641e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4642fc931582SAndy Adamson } 4643fc931582SAndy Adamson 4644fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4645fc931582SAndy Adamson struct nfs41_create_session_res *res) 4646fc931582SAndy Adamson { 4647fc931582SAndy Adamson __be32 *p; 4648fc931582SAndy Adamson int status; 4649fc931582SAndy Adamson struct nfs_client *clp = res->client; 4650fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4651fc931582SAndy Adamson 4652fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4653e78291e4SBenny Halevy if (!status) 4654e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4655e78291e4SBenny Halevy if (unlikely(status)) 4656fc931582SAndy Adamson return status; 4657fc931582SAndy Adamson 4658fc931582SAndy Adamson /* seqid, flags */ 4659c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4660c0eae66eSBenny Halevy if (unlikely(!p)) 4661c0eae66eSBenny Halevy goto out_overflow; 46626f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4663cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4664fc931582SAndy Adamson 4665fc931582SAndy Adamson /* Channel attributes */ 4666fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4667fc931582SAndy Adamson if (!status) 4668fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4669fc931582SAndy Adamson return status; 4670c0eae66eSBenny Halevy out_overflow: 4671c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4672c0eae66eSBenny Halevy return -EIO; 4673fc931582SAndy Adamson } 46740f3e66c6SAndy Adamson 46750f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 46760f3e66c6SAndy Adamson { 46770f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 46780f3e66c6SAndy Adamson } 467918019753SRicardo Labiaga 468018019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 468118019753SRicardo Labiaga { 468218019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 468318019753SRicardo Labiaga } 468499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 468599fe60d0SBenny Halevy 46869b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 46879b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 46889b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 46899b7b9fccSAndy Adamson { 46909b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4691fc01cea9SAndy Adamson struct nfs4_sessionid id; 4692fc01cea9SAndy Adamson u32 dummy; 4693fc01cea9SAndy Adamson int status; 4694fc01cea9SAndy Adamson __be32 *p; 4695fc01cea9SAndy Adamson 46969b7b9fccSAndy Adamson if (!res->sr_session) 46979b7b9fccSAndy Adamson return 0; 46989b7b9fccSAndy Adamson 4699fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4700e78291e4SBenny Halevy if (!status) 4701e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 4702e78291e4SBenny Halevy if (unlikely(status)) 4703fc01cea9SAndy Adamson goto out_err; 47049b7b9fccSAndy Adamson 4705fc01cea9SAndy Adamson /* 4706fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4707fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4708fc01cea9SAndy Adamson */ 4709fdcb4577STrond Myklebust status = -EREMOTEIO; 4710fc01cea9SAndy Adamson 4711fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4712fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4713fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4714fc01cea9SAndy Adamson goto out_err; 4715fc01cea9SAndy Adamson } 4716e78291e4SBenny Halevy 4717c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4718c0eae66eSBenny Halevy if (unlikely(!p)) 4719c0eae66eSBenny Halevy goto out_overflow; 4720e78291e4SBenny Halevy 4721fc01cea9SAndy Adamson /* seqid */ 47226f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4723dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 4724fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4725fc01cea9SAndy Adamson goto out_err; 4726fc01cea9SAndy Adamson } 4727fc01cea9SAndy Adamson /* slot id */ 47286f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4729dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 4730fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4731fc01cea9SAndy Adamson goto out_err; 4732fc01cea9SAndy Adamson } 4733fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 47346f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4735fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 47366f723f77SBenny Halevy dummy = be32_to_cpup(p++); 47370629e370SAlexandros Batsakis /* result flags */ 47380629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 4739fc01cea9SAndy Adamson status = 0; 4740fc01cea9SAndy Adamson out_err: 4741fc01cea9SAndy Adamson res->sr_status = status; 4742fc01cea9SAndy Adamson return status; 4743c0eae66eSBenny Halevy out_overflow: 4744c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4745c0eae66eSBenny Halevy status = -EIO; 4746c0eae66eSBenny Halevy goto out_err; 4747fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 47489b7b9fccSAndy Adamson return 0; 4749fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 47509b7b9fccSAndy Adamson } 47519b7b9fccSAndy Adamson 47521da177e4SLinus Torvalds /* 475349c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 475449c2559eSBenny Halevy */ 475549c2559eSBenny Halevy 475649c2559eSBenny Halevy /* 47571da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 47581da177e4SLinus Torvalds */ 47598687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 47601da177e4SLinus Torvalds { 47611da177e4SLinus Torvalds struct xdr_stream xdr; 47621da177e4SLinus Torvalds struct compound_hdr hdr; 47631da177e4SLinus Torvalds int status; 47641da177e4SLinus Torvalds 47651da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47661da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47671da177e4SLinus Torvalds if (status) 47681da177e4SLinus Torvalds goto out; 47699b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47709b7b9fccSAndy Adamson if (status) 47719b7b9fccSAndy Adamson goto out; 47721da177e4SLinus Torvalds status = decode_putfh(&xdr); 47731da177e4SLinus Torvalds if (status) 47741da177e4SLinus Torvalds goto out; 47751da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4776516a6af6STrond Myklebust if (status != 0) 4777516a6af6STrond Myklebust goto out; 477880e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 477980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 47801da177e4SLinus Torvalds out: 47811da177e4SLinus Torvalds return status; 47821da177e4SLinus Torvalds } 47831da177e4SLinus Torvalds 47841da177e4SLinus Torvalds /* 47851da177e4SLinus Torvalds * Decode ACCESS response 47861da177e4SLinus Torvalds */ 47878687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 47881da177e4SLinus Torvalds { 47891da177e4SLinus Torvalds struct xdr_stream xdr; 47901da177e4SLinus Torvalds struct compound_hdr hdr; 47911da177e4SLinus Torvalds int status; 47921da177e4SLinus Torvalds 47931da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47949b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47959b7b9fccSAndy Adamson if (status) 47969b7b9fccSAndy Adamson goto out; 47979b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47989b7b9fccSAndy Adamson if (status) 47991da177e4SLinus Torvalds goto out; 480076b32999STrond Myklebust status = decode_putfh(&xdr); 480176b32999STrond Myklebust if (status != 0) 480276b32999STrond Myklebust goto out; 48031da177e4SLinus Torvalds status = decode_access(&xdr, res); 480476b32999STrond Myklebust if (status != 0) 480576b32999STrond Myklebust goto out; 480680e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 480780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48081da177e4SLinus Torvalds out: 48091da177e4SLinus Torvalds return status; 48101da177e4SLinus Torvalds } 48111da177e4SLinus Torvalds 48121da177e4SLinus Torvalds /* 48131da177e4SLinus Torvalds * Decode LOOKUP response 48141da177e4SLinus Torvalds */ 48158687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 48161da177e4SLinus Torvalds { 48171da177e4SLinus Torvalds struct xdr_stream xdr; 48181da177e4SLinus Torvalds struct compound_hdr hdr; 48191da177e4SLinus Torvalds int status; 48201da177e4SLinus Torvalds 48211da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48229b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48239b7b9fccSAndy Adamson if (status) 48249b7b9fccSAndy Adamson goto out; 48259b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48269b7b9fccSAndy Adamson if (status) 48271da177e4SLinus Torvalds goto out; 48281da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48291da177e4SLinus Torvalds goto out; 48301da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 48311da177e4SLinus Torvalds goto out; 48321da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 48331da177e4SLinus Torvalds goto out; 483480e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server 483580e52aceSTrond Myklebust ,!RPC_IS_ASYNC(rqstp->rq_task)); 48361da177e4SLinus Torvalds out: 48371da177e4SLinus Torvalds return status; 48381da177e4SLinus Torvalds } 48391da177e4SLinus Torvalds 48401da177e4SLinus Torvalds /* 48411da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 48421da177e4SLinus Torvalds */ 48438687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 48441da177e4SLinus Torvalds { 48451da177e4SLinus Torvalds struct xdr_stream xdr; 48461da177e4SLinus Torvalds struct compound_hdr hdr; 48471da177e4SLinus Torvalds int status; 48481da177e4SLinus Torvalds 48491da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48509b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48519b7b9fccSAndy Adamson if (status) 48529b7b9fccSAndy Adamson goto out; 48539b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48549b7b9fccSAndy Adamson if (status) 48551da177e4SLinus Torvalds goto out; 48561da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 48571da177e4SLinus Torvalds goto out; 48581da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 485980e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 486080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48611da177e4SLinus Torvalds out: 48621da177e4SLinus Torvalds return status; 48631da177e4SLinus Torvalds } 48641da177e4SLinus Torvalds 48651da177e4SLinus Torvalds /* 48661da177e4SLinus Torvalds * Decode REMOVE response 48671da177e4SLinus Torvalds */ 48684fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 48691da177e4SLinus Torvalds { 48701da177e4SLinus Torvalds struct xdr_stream xdr; 48711da177e4SLinus Torvalds struct compound_hdr hdr; 48721da177e4SLinus Torvalds int status; 48731da177e4SLinus Torvalds 48741da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48759b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48769b7b9fccSAndy Adamson if (status) 48779b7b9fccSAndy Adamson goto out; 48789b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48799b7b9fccSAndy Adamson if (status) 48801da177e4SLinus Torvalds goto out; 488116e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 488216e42959STrond Myklebust goto out; 488316e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 488416e42959STrond Myklebust goto out; 4885d346890bSTrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server, 488680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48871da177e4SLinus Torvalds out: 48881da177e4SLinus Torvalds return status; 48891da177e4SLinus Torvalds } 48901da177e4SLinus Torvalds 48911da177e4SLinus Torvalds /* 48921da177e4SLinus Torvalds * Decode RENAME response 48931da177e4SLinus Torvalds */ 4894e8582a8bSJeff Layton static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs_renameres *res) 48951da177e4SLinus Torvalds { 48961da177e4SLinus Torvalds struct xdr_stream xdr; 48971da177e4SLinus Torvalds struct compound_hdr hdr; 48981da177e4SLinus Torvalds int status; 48991da177e4SLinus Torvalds 49001da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49019b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 49029b7b9fccSAndy Adamson if (status) 49039b7b9fccSAndy Adamson goto out; 49049b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49059b7b9fccSAndy Adamson if (status) 49061da177e4SLinus Torvalds goto out; 49071da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49081da177e4SLinus Torvalds goto out; 49091da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 49101da177e4SLinus Torvalds goto out; 49111da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49121da177e4SLinus Torvalds goto out; 49136caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 49146caf2c82STrond Myklebust goto out; 49156caf2c82STrond Myklebust /* Current FH is target directory */ 491680e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server, 491780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 49186caf2c82STrond Myklebust goto out; 49196caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 49206caf2c82STrond Myklebust goto out; 492180e52aceSTrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server, 492280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49231da177e4SLinus Torvalds out: 49241da177e4SLinus Torvalds return status; 49251da177e4SLinus Torvalds } 49261da177e4SLinus Torvalds 49271da177e4SLinus Torvalds /* 49281da177e4SLinus Torvalds * Decode LINK response 49291da177e4SLinus Torvalds */ 49308687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 49311da177e4SLinus Torvalds { 49321da177e4SLinus Torvalds struct xdr_stream xdr; 49331da177e4SLinus Torvalds struct compound_hdr hdr; 49341da177e4SLinus Torvalds int status; 49351da177e4SLinus Torvalds 49361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49379b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 49389b7b9fccSAndy Adamson if (status) 49399b7b9fccSAndy Adamson goto out; 49409b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49419b7b9fccSAndy Adamson if (status) 49421da177e4SLinus Torvalds goto out; 49431da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49441da177e4SLinus Torvalds goto out; 49451da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 49461da177e4SLinus Torvalds goto out; 49471da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49481da177e4SLinus Torvalds goto out; 494991ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 495091ba2eeeSTrond Myklebust goto out; 495191ba2eeeSTrond Myklebust /* 495291ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 495391ba2eeeSTrond Myklebust * filehandle. 495491ba2eeeSTrond Myklebust */ 495580e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server, 495680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 495791ba2eeeSTrond Myklebust goto out; 495891ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 495991ba2eeeSTrond Myklebust goto out; 496080e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 496180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49621da177e4SLinus Torvalds out: 49631da177e4SLinus Torvalds return status; 49641da177e4SLinus Torvalds } 49651da177e4SLinus Torvalds 49661da177e4SLinus Torvalds /* 49671da177e4SLinus Torvalds * Decode CREATE response 49681da177e4SLinus Torvalds */ 49698687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 49701da177e4SLinus Torvalds { 49711da177e4SLinus Torvalds struct xdr_stream xdr; 49721da177e4SLinus Torvalds struct compound_hdr hdr; 49731da177e4SLinus Torvalds int status; 49741da177e4SLinus Torvalds 49751da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49769b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 49779b7b9fccSAndy Adamson if (status) 49789b7b9fccSAndy Adamson goto out; 49799b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49809b7b9fccSAndy Adamson if (status) 49811da177e4SLinus Torvalds goto out; 49821da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49831da177e4SLinus Torvalds goto out; 498456ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 498556ae19f3STrond Myklebust goto out; 49861da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 49871da177e4SLinus Torvalds goto out; 49881da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 49891da177e4SLinus Torvalds goto out; 499080e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server, 499180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 499256ae19f3STrond Myklebust goto out; 499356ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 499456ae19f3STrond Myklebust goto out; 499580e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server, 499680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49971da177e4SLinus Torvalds out: 49981da177e4SLinus Torvalds return status; 49991da177e4SLinus Torvalds } 50001da177e4SLinus Torvalds 50011da177e4SLinus Torvalds /* 50021da177e4SLinus Torvalds * Decode SYMLINK response 50031da177e4SLinus Torvalds */ 50048687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 50051da177e4SLinus Torvalds { 50061da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 50071da177e4SLinus Torvalds } 50081da177e4SLinus Torvalds 50091da177e4SLinus Torvalds /* 50101da177e4SLinus Torvalds * Decode GETATTR response 50111da177e4SLinus Torvalds */ 50128687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 50131da177e4SLinus Torvalds { 50141da177e4SLinus Torvalds struct xdr_stream xdr; 50151da177e4SLinus Torvalds struct compound_hdr hdr; 50161da177e4SLinus Torvalds int status; 50171da177e4SLinus Torvalds 50181da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50191da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50201da177e4SLinus Torvalds if (status) 50211da177e4SLinus Torvalds goto out; 50229b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50239b7b9fccSAndy Adamson if (status) 50249b7b9fccSAndy Adamson goto out; 50251da177e4SLinus Torvalds status = decode_putfh(&xdr); 50261da177e4SLinus Torvalds if (status) 50271da177e4SLinus Torvalds goto out; 502880e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 502980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50301da177e4SLinus Torvalds out: 50311da177e4SLinus Torvalds return status; 50321da177e4SLinus Torvalds } 50331da177e4SLinus Torvalds 503423ec6965SJ. Bruce Fields /* 503523ec6965SJ. Bruce Fields * Encode an SETACL request 503623ec6965SJ. Bruce Fields */ 503723ec6965SJ. Bruce Fields static int 50388687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 503923ec6965SJ. Bruce Fields { 504023ec6965SJ. Bruce Fields struct xdr_stream xdr; 504123ec6965SJ. Bruce Fields struct compound_hdr hdr = { 504266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 504323ec6965SJ. Bruce Fields }; 504423ec6965SJ. Bruce Fields int status; 504523ec6965SJ. Bruce Fields 504623ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 50470c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 50489b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 5049cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 5050d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 5051d017931cSAndy Adamson encode_nops(&hdr); 505223ec6965SJ. Bruce Fields return status; 505323ec6965SJ. Bruce Fields } 505405d564feSAndy Adamson 505523ec6965SJ. Bruce Fields /* 505623ec6965SJ. Bruce Fields * Decode SETACL response 505723ec6965SJ. Bruce Fields */ 505823ec6965SJ. Bruce Fields static int 505973c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 506073c403a9SBenny Halevy struct nfs_setaclres *res) 506123ec6965SJ. Bruce Fields { 506223ec6965SJ. Bruce Fields struct xdr_stream xdr; 506323ec6965SJ. Bruce Fields struct compound_hdr hdr; 506423ec6965SJ. Bruce Fields int status; 506523ec6965SJ. Bruce Fields 506623ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 506723ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 506823ec6965SJ. Bruce Fields if (status) 506923ec6965SJ. Bruce Fields goto out; 50709b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50719b7b9fccSAndy Adamson if (status) 50729b7b9fccSAndy Adamson goto out; 507323ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 507423ec6965SJ. Bruce Fields if (status) 507523ec6965SJ. Bruce Fields goto out; 50769e9ecc03SBenny Halevy status = decode_setattr(&xdr); 507723ec6965SJ. Bruce Fields out: 507823ec6965SJ. Bruce Fields return status; 507923ec6965SJ. Bruce Fields } 50801da177e4SLinus Torvalds 50811da177e4SLinus Torvalds /* 5082029d105eSJ. Bruce Fields * Decode GETACL response 5083029d105eSJ. Bruce Fields */ 5084029d105eSJ. Bruce Fields static int 5085663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 5086663c79b3SBenny Halevy struct nfs_getaclres *res) 5087029d105eSJ. Bruce Fields { 5088029d105eSJ. Bruce Fields struct xdr_stream xdr; 5089029d105eSJ. Bruce Fields struct compound_hdr hdr; 5090029d105eSJ. Bruce Fields int status; 5091029d105eSJ. Bruce Fields 5092029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5093029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 5094029d105eSJ. Bruce Fields if (status) 5095029d105eSJ. Bruce Fields goto out; 50969b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50979b7b9fccSAndy Adamson if (status) 50989b7b9fccSAndy Adamson goto out; 5099029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 5100029d105eSJ. Bruce Fields if (status) 5101029d105eSJ. Bruce Fields goto out; 5102663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 5103029d105eSJ. Bruce Fields 5104029d105eSJ. Bruce Fields out: 5105029d105eSJ. Bruce Fields return status; 5106029d105eSJ. Bruce Fields } 5107029d105eSJ. Bruce Fields 5108029d105eSJ. Bruce Fields /* 51091da177e4SLinus Torvalds * Decode CLOSE response 51101da177e4SLinus Torvalds */ 51118687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 51121da177e4SLinus Torvalds { 51131da177e4SLinus Torvalds struct xdr_stream xdr; 51141da177e4SLinus Torvalds struct compound_hdr hdr; 51151da177e4SLinus Torvalds int status; 51161da177e4SLinus Torvalds 51171da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51181da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51191da177e4SLinus Torvalds if (status) 51201da177e4SLinus Torvalds goto out; 51219b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51229b7b9fccSAndy Adamson if (status) 51239b7b9fccSAndy Adamson goto out; 51241da177e4SLinus Torvalds status = decode_putfh(&xdr); 51251da177e4SLinus Torvalds if (status) 51261da177e4SLinus Torvalds goto out; 51271da177e4SLinus Torvalds status = decode_close(&xdr, res); 5128516a6af6STrond Myklebust if (status != 0) 5129516a6af6STrond Myklebust goto out; 5130516a6af6STrond Myklebust /* 5131516a6af6STrond Myklebust * Note: Server may do delete on close for this file 5132516a6af6STrond Myklebust * in which case the getattr call will fail with 5133516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 5134516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 5135516a6af6STrond Myklebust */ 513680e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 513780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51381da177e4SLinus Torvalds out: 51391da177e4SLinus Torvalds return status; 51401da177e4SLinus Torvalds } 51411da177e4SLinus Torvalds 51421da177e4SLinus Torvalds /* 51431da177e4SLinus Torvalds * Decode OPEN response 51441da177e4SLinus Torvalds */ 51458687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 51461da177e4SLinus Torvalds { 51471da177e4SLinus Torvalds struct xdr_stream xdr; 51481da177e4SLinus Torvalds struct compound_hdr hdr; 51491da177e4SLinus Torvalds int status; 51501da177e4SLinus Torvalds 51511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51531da177e4SLinus Torvalds if (status) 51541da177e4SLinus Torvalds goto out; 51559b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51569b7b9fccSAndy Adamson if (status) 51579b7b9fccSAndy Adamson goto out; 51581da177e4SLinus Torvalds status = decode_putfh(&xdr); 51591da177e4SLinus Torvalds if (status) 51601da177e4SLinus Torvalds goto out; 516156ae19f3STrond Myklebust status = decode_savefh(&xdr); 516256ae19f3STrond Myklebust if (status) 516356ae19f3STrond Myklebust goto out; 51641da177e4SLinus Torvalds status = decode_open(&xdr, res); 51651da177e4SLinus Torvalds if (status) 51661da177e4SLinus Torvalds goto out; 51679936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 51681da177e4SLinus Torvalds goto out; 516980e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server, 517080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 517156ae19f3STrond Myklebust goto out; 5172365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 517356ae19f3STrond Myklebust goto out; 517480e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server, 517580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51761da177e4SLinus Torvalds out: 51771da177e4SLinus Torvalds return status; 51781da177e4SLinus Torvalds } 51791da177e4SLinus Torvalds 51801da177e4SLinus Torvalds /* 51811da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 51821da177e4SLinus Torvalds */ 51838687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 51841da177e4SLinus Torvalds { 51851da177e4SLinus Torvalds struct xdr_stream xdr; 51861da177e4SLinus Torvalds struct compound_hdr hdr; 51871da177e4SLinus Torvalds int status; 51881da177e4SLinus Torvalds 51891da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51901da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51911da177e4SLinus Torvalds if (status) 51921da177e4SLinus Torvalds goto out; 51931da177e4SLinus Torvalds status = decode_putfh(&xdr); 51941da177e4SLinus Torvalds if (status) 51951da177e4SLinus Torvalds goto out; 51961da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 51971da177e4SLinus Torvalds out: 51981da177e4SLinus Torvalds return status; 51991da177e4SLinus Torvalds } 52001da177e4SLinus Torvalds 52011da177e4SLinus Torvalds /* 52021da177e4SLinus Torvalds * Decode OPEN response 52031da177e4SLinus Torvalds */ 52048687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 52051da177e4SLinus Torvalds { 52061da177e4SLinus Torvalds struct xdr_stream xdr; 52071da177e4SLinus Torvalds struct compound_hdr hdr; 52081da177e4SLinus Torvalds int status; 52091da177e4SLinus Torvalds 52101da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52111da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52121da177e4SLinus Torvalds if (status) 52131da177e4SLinus Torvalds goto out; 52149b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52159b7b9fccSAndy Adamson if (status) 52169b7b9fccSAndy Adamson goto out; 52171da177e4SLinus Torvalds status = decode_putfh(&xdr); 52181da177e4SLinus Torvalds if (status) 52191da177e4SLinus Torvalds goto out; 52201da177e4SLinus Torvalds status = decode_open(&xdr, res); 5221864472e9STrond Myklebust if (status) 5222864472e9STrond Myklebust goto out; 522380e52aceSTrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server, 522480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52251da177e4SLinus Torvalds out: 52261da177e4SLinus Torvalds return status; 52271da177e4SLinus Torvalds } 52281da177e4SLinus Torvalds 52291da177e4SLinus Torvalds /* 52301da177e4SLinus Torvalds * Decode SETATTR response 52311da177e4SLinus Torvalds */ 52328687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 52331da177e4SLinus Torvalds { 52341da177e4SLinus Torvalds struct xdr_stream xdr; 52351da177e4SLinus Torvalds struct compound_hdr hdr; 52361da177e4SLinus Torvalds int status; 52371da177e4SLinus Torvalds 52381da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52391da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52401da177e4SLinus Torvalds if (status) 52411da177e4SLinus Torvalds goto out; 52429b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52439b7b9fccSAndy Adamson if (status) 52449b7b9fccSAndy Adamson goto out; 52451da177e4SLinus Torvalds status = decode_putfh(&xdr); 52461da177e4SLinus Torvalds if (status) 52471da177e4SLinus Torvalds goto out; 52489e9ecc03SBenny Halevy status = decode_setattr(&xdr); 52491da177e4SLinus Torvalds if (status) 52501da177e4SLinus Torvalds goto out; 525180e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 525280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52531da177e4SLinus Torvalds out: 52541da177e4SLinus Torvalds return status; 52551da177e4SLinus Torvalds } 52561da177e4SLinus Torvalds 52571da177e4SLinus Torvalds /* 52581da177e4SLinus Torvalds * Decode LOCK response 52591da177e4SLinus Torvalds */ 52608687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 52611da177e4SLinus Torvalds { 52621da177e4SLinus Torvalds struct xdr_stream xdr; 52631da177e4SLinus Torvalds struct compound_hdr hdr; 52641da177e4SLinus Torvalds int status; 52651da177e4SLinus Torvalds 52661da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52671da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52681da177e4SLinus Torvalds if (status) 52691da177e4SLinus Torvalds goto out; 52709b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52719b7b9fccSAndy Adamson if (status) 52729b7b9fccSAndy Adamson goto out; 52731da177e4SLinus Torvalds status = decode_putfh(&xdr); 52741da177e4SLinus Torvalds if (status) 52751da177e4SLinus Torvalds goto out; 52761da177e4SLinus Torvalds status = decode_lock(&xdr, res); 52771da177e4SLinus Torvalds out: 52781da177e4SLinus Torvalds return status; 52791da177e4SLinus Torvalds } 52801da177e4SLinus Torvalds 52811da177e4SLinus Torvalds /* 52821da177e4SLinus Torvalds * Decode LOCKT response 52831da177e4SLinus Torvalds */ 52848687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 52851da177e4SLinus Torvalds { 52861da177e4SLinus Torvalds struct xdr_stream xdr; 52871da177e4SLinus Torvalds struct compound_hdr hdr; 52881da177e4SLinus Torvalds int status; 52891da177e4SLinus Torvalds 52901da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52911da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52921da177e4SLinus Torvalds if (status) 52931da177e4SLinus Torvalds goto out; 52949b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52959b7b9fccSAndy Adamson if (status) 52969b7b9fccSAndy Adamson goto out; 52971da177e4SLinus Torvalds status = decode_putfh(&xdr); 52981da177e4SLinus Torvalds if (status) 52991da177e4SLinus Torvalds goto out; 53001da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 53011da177e4SLinus Torvalds out: 53021da177e4SLinus Torvalds return status; 53031da177e4SLinus Torvalds } 53041da177e4SLinus Torvalds 53051da177e4SLinus Torvalds /* 53061da177e4SLinus Torvalds * Decode LOCKU response 53071da177e4SLinus Torvalds */ 53088687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 53091da177e4SLinus Torvalds { 53101da177e4SLinus Torvalds struct xdr_stream xdr; 53111da177e4SLinus Torvalds struct compound_hdr hdr; 53121da177e4SLinus Torvalds int status; 53131da177e4SLinus Torvalds 53141da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53151da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53161da177e4SLinus Torvalds if (status) 53171da177e4SLinus Torvalds goto out; 53189b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53199b7b9fccSAndy Adamson if (status) 53209b7b9fccSAndy Adamson goto out; 53211da177e4SLinus Torvalds status = decode_putfh(&xdr); 53221da177e4SLinus Torvalds if (status) 53231da177e4SLinus Torvalds goto out; 53241da177e4SLinus Torvalds status = decode_locku(&xdr, res); 53251da177e4SLinus Torvalds out: 53261da177e4SLinus Torvalds return status; 53271da177e4SLinus Torvalds } 53281da177e4SLinus Torvalds 5329d3c7b7ccSTrond Myklebust static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 5330d3c7b7ccSTrond Myklebust { 5331d3c7b7ccSTrond Myklebust struct xdr_stream xdr; 5332d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 5333d3c7b7ccSTrond Myklebust int status; 5334d3c7b7ccSTrond Myklebust 5335d3c7b7ccSTrond Myklebust xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5336d3c7b7ccSTrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 5337d3c7b7ccSTrond Myklebust if (!status) 5338d3c7b7ccSTrond Myklebust status = decode_release_lockowner(&xdr); 5339d3c7b7ccSTrond Myklebust return status; 5340d3c7b7ccSTrond Myklebust } 5341d3c7b7ccSTrond Myklebust 53421da177e4SLinus Torvalds /* 53431da177e4SLinus Torvalds * Decode READLINK response 53441da177e4SLinus Torvalds */ 5345f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 5346f50c7000SBenny Halevy struct nfs4_readlink_res *res) 53471da177e4SLinus Torvalds { 53481da177e4SLinus Torvalds struct xdr_stream xdr; 53491da177e4SLinus Torvalds struct compound_hdr hdr; 53501da177e4SLinus Torvalds int status; 53511da177e4SLinus Torvalds 53521da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53531da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53541da177e4SLinus Torvalds if (status) 53551da177e4SLinus Torvalds goto out; 53569b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53579b7b9fccSAndy Adamson if (status) 53589b7b9fccSAndy Adamson goto out; 53591da177e4SLinus Torvalds status = decode_putfh(&xdr); 53601da177e4SLinus Torvalds if (status) 53611da177e4SLinus Torvalds goto out; 53621da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 53631da177e4SLinus Torvalds out: 53641da177e4SLinus Torvalds return status; 53651da177e4SLinus Torvalds } 53661da177e4SLinus Torvalds 53671da177e4SLinus Torvalds /* 53681da177e4SLinus Torvalds * Decode READDIR response 53691da177e4SLinus Torvalds */ 53708687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 53711da177e4SLinus Torvalds { 53721da177e4SLinus Torvalds struct xdr_stream xdr; 53731da177e4SLinus Torvalds struct compound_hdr hdr; 53741da177e4SLinus Torvalds int status; 53751da177e4SLinus Torvalds 53761da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53771da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53781da177e4SLinus Torvalds if (status) 53791da177e4SLinus Torvalds goto out; 53809b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53819b7b9fccSAndy Adamson if (status) 53829b7b9fccSAndy Adamson goto out; 53831da177e4SLinus Torvalds status = decode_putfh(&xdr); 53841da177e4SLinus Torvalds if (status) 53851da177e4SLinus Torvalds goto out; 53861da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 53871da177e4SLinus Torvalds out: 53881da177e4SLinus Torvalds return status; 53891da177e4SLinus Torvalds } 53901da177e4SLinus Torvalds 53911da177e4SLinus Torvalds /* 53921da177e4SLinus Torvalds * Decode Read response 53931da177e4SLinus Torvalds */ 53948687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 53951da177e4SLinus Torvalds { 53961da177e4SLinus Torvalds struct xdr_stream xdr; 53971da177e4SLinus Torvalds struct compound_hdr hdr; 53981da177e4SLinus Torvalds int status; 53991da177e4SLinus Torvalds 54001da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54011da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54021da177e4SLinus Torvalds if (status) 54031da177e4SLinus Torvalds goto out; 54049b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54059b7b9fccSAndy Adamson if (status) 54069b7b9fccSAndy Adamson goto out; 54071da177e4SLinus Torvalds status = decode_putfh(&xdr); 54081da177e4SLinus Torvalds if (status) 54091da177e4SLinus Torvalds goto out; 54101da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 54111da177e4SLinus Torvalds if (!status) 54121da177e4SLinus Torvalds status = res->count; 54131da177e4SLinus Torvalds out: 54141da177e4SLinus Torvalds return status; 54151da177e4SLinus Torvalds } 54161da177e4SLinus Torvalds 54171da177e4SLinus Torvalds /* 54181da177e4SLinus Torvalds * Decode WRITE response 54191da177e4SLinus Torvalds */ 54208687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 54211da177e4SLinus Torvalds { 54221da177e4SLinus Torvalds struct xdr_stream xdr; 54231da177e4SLinus Torvalds struct compound_hdr hdr; 54241da177e4SLinus Torvalds int status; 54251da177e4SLinus Torvalds 54261da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54271da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54281da177e4SLinus Torvalds if (status) 54291da177e4SLinus Torvalds goto out; 54309b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54319b7b9fccSAndy Adamson if (status) 54329b7b9fccSAndy Adamson goto out; 54331da177e4SLinus Torvalds status = decode_putfh(&xdr); 54341da177e4SLinus Torvalds if (status) 54351da177e4SLinus Torvalds goto out; 54361da177e4SLinus Torvalds status = decode_write(&xdr, res); 54374f9838c7STrond Myklebust if (status) 54384f9838c7STrond Myklebust goto out; 543980e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 544080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54411da177e4SLinus Torvalds if (!status) 54421da177e4SLinus Torvalds status = res->count; 54431da177e4SLinus Torvalds out: 54441da177e4SLinus Torvalds return status; 54451da177e4SLinus Torvalds } 54461da177e4SLinus Torvalds 54471da177e4SLinus Torvalds /* 54481da177e4SLinus Torvalds * Decode COMMIT response 54491da177e4SLinus Torvalds */ 54508687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 54511da177e4SLinus Torvalds { 54521da177e4SLinus Torvalds struct xdr_stream xdr; 54531da177e4SLinus Torvalds struct compound_hdr hdr; 54541da177e4SLinus Torvalds int status; 54551da177e4SLinus Torvalds 54561da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54571da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54581da177e4SLinus Torvalds if (status) 54591da177e4SLinus Torvalds goto out; 54609b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54619b7b9fccSAndy Adamson if (status) 54629b7b9fccSAndy Adamson goto out; 54631da177e4SLinus Torvalds status = decode_putfh(&xdr); 54641da177e4SLinus Torvalds if (status) 54651da177e4SLinus Torvalds goto out; 54661da177e4SLinus Torvalds status = decode_commit(&xdr, res); 54674f9838c7STrond Myklebust if (status) 54684f9838c7STrond Myklebust goto out; 546980e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 547080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54711da177e4SLinus Torvalds out: 54721da177e4SLinus Torvalds return status; 54731da177e4SLinus Torvalds } 54741da177e4SLinus Torvalds 54751da177e4SLinus Torvalds /* 54768b173218SRicardo Labiaga * Decode FSINFO response 54771da177e4SLinus Torvalds */ 54783dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 54793dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 54801da177e4SLinus Torvalds { 54811da177e4SLinus Torvalds struct xdr_stream xdr; 54821da177e4SLinus Torvalds struct compound_hdr hdr; 54831da177e4SLinus Torvalds int status; 54841da177e4SLinus Torvalds 54851da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54861da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54871da177e4SLinus Torvalds if (!status) 54889b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54899b7b9fccSAndy Adamson if (!status) 54901da177e4SLinus Torvalds status = decode_putfh(&xdr); 54911da177e4SLinus Torvalds if (!status) 54923dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 54931da177e4SLinus Torvalds return status; 54941da177e4SLinus Torvalds } 54951da177e4SLinus Torvalds 54961da177e4SLinus Torvalds /* 54978b173218SRicardo Labiaga * Decode PATHCONF response 54981da177e4SLinus Torvalds */ 5499d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5500d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 55011da177e4SLinus Torvalds { 55021da177e4SLinus Torvalds struct xdr_stream xdr; 55031da177e4SLinus Torvalds struct compound_hdr hdr; 55041da177e4SLinus Torvalds int status; 55051da177e4SLinus Torvalds 55061da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55071da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55081da177e4SLinus Torvalds if (!status) 55099b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 55109b7b9fccSAndy Adamson if (!status) 55111da177e4SLinus Torvalds status = decode_putfh(&xdr); 55121da177e4SLinus Torvalds if (!status) 5513d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 55141da177e4SLinus Torvalds return status; 55151da177e4SLinus Torvalds } 55161da177e4SLinus Torvalds 55171da177e4SLinus Torvalds /* 55188b173218SRicardo Labiaga * Decode STATFS response 55191da177e4SLinus Torvalds */ 552024ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 552124ad148aSBenny Halevy struct nfs4_statfs_res *res) 55221da177e4SLinus Torvalds { 55231da177e4SLinus Torvalds struct xdr_stream xdr; 55241da177e4SLinus Torvalds struct compound_hdr hdr; 55251da177e4SLinus Torvalds int status; 55261da177e4SLinus Torvalds 55271da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55281da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55291da177e4SLinus Torvalds if (!status) 55309b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 55319b7b9fccSAndy Adamson if (!status) 55321da177e4SLinus Torvalds status = decode_putfh(&xdr); 55331da177e4SLinus Torvalds if (!status) 553424ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 55351da177e4SLinus Torvalds return status; 55361da177e4SLinus Torvalds } 55371da177e4SLinus Torvalds 55381da177e4SLinus Torvalds /* 55398b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 55401da177e4SLinus Torvalds */ 55418687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 55421da177e4SLinus Torvalds { 55431da177e4SLinus Torvalds struct xdr_stream xdr; 55441da177e4SLinus Torvalds struct compound_hdr hdr; 55451da177e4SLinus Torvalds int status; 55461da177e4SLinus Torvalds 55471da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55489b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 55499b7b9fccSAndy Adamson if (status) 55509b7b9fccSAndy Adamson goto out; 55519b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 55529b7b9fccSAndy Adamson if (status) 55531da177e4SLinus Torvalds goto out; 55541da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 55551da177e4SLinus Torvalds goto out; 55561da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 55571da177e4SLinus Torvalds out: 55581da177e4SLinus Torvalds return status; 55591da177e4SLinus Torvalds } 55601da177e4SLinus Torvalds 55611da177e4SLinus Torvalds /* 55621da177e4SLinus Torvalds * Decode RENEW response 55631da177e4SLinus Torvalds */ 55648687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 55651da177e4SLinus Torvalds { 55661da177e4SLinus Torvalds struct xdr_stream xdr; 55671da177e4SLinus Torvalds struct compound_hdr hdr; 55681da177e4SLinus Torvalds int status; 55691da177e4SLinus Torvalds 55701da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 55711da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55721da177e4SLinus Torvalds if (!status) 55731da177e4SLinus Torvalds status = decode_renew(&xdr); 55741da177e4SLinus Torvalds return status; 55751da177e4SLinus Torvalds } 55761da177e4SLinus Torvalds 55771da177e4SLinus Torvalds /* 55788b173218SRicardo Labiaga * Decode SETCLIENTID response 55791da177e4SLinus Torvalds */ 55808687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5581bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 55821da177e4SLinus Torvalds { 55831da177e4SLinus Torvalds struct xdr_stream xdr; 55841da177e4SLinus Torvalds struct compound_hdr hdr; 55851da177e4SLinus Torvalds int status; 55861da177e4SLinus Torvalds 55871da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55881da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55891da177e4SLinus Torvalds if (!status) 5590bb8b27e5STrond Myklebust status = decode_setclientid(&xdr, res); 55911da177e4SLinus Torvalds return status; 55921da177e4SLinus Torvalds } 55931da177e4SLinus Torvalds 55941da177e4SLinus Torvalds /* 55958b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 55961da177e4SLinus Torvalds */ 55978687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 55981da177e4SLinus Torvalds { 55991da177e4SLinus Torvalds struct xdr_stream xdr; 56001da177e4SLinus Torvalds struct compound_hdr hdr; 56011da177e4SLinus Torvalds int status; 56021da177e4SLinus Torvalds 56031da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 56041da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 56051da177e4SLinus Torvalds if (!status) 56061da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 56071da177e4SLinus Torvalds if (!status) 56081da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 56091da177e4SLinus Torvalds if (!status) 56101da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 56111da177e4SLinus Torvalds return status; 56121da177e4SLinus Torvalds } 56131da177e4SLinus Torvalds 56141da177e4SLinus Torvalds /* 56158b173218SRicardo Labiaga * Decode DELEGRETURN response 56161da177e4SLinus Torvalds */ 56178687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 56181da177e4SLinus Torvalds { 56191da177e4SLinus Torvalds struct xdr_stream xdr; 56201da177e4SLinus Torvalds struct compound_hdr hdr; 56211da177e4SLinus Torvalds int status; 56221da177e4SLinus Torvalds 56231da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56241da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 56259b7b9fccSAndy Adamson if (status) 56269b7b9fccSAndy Adamson goto out; 56279b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 56289b7b9fccSAndy Adamson if (status) 5629fa178f29STrond Myklebust goto out; 56301da177e4SLinus Torvalds status = decode_putfh(&xdr); 5631fa178f29STrond Myklebust if (status != 0) 5632fa178f29STrond Myklebust goto out; 56331da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5634556ae3bbSJeff Layton if (status != 0) 5635556ae3bbSJeff Layton goto out; 563680e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 563780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 5638fa178f29STrond Myklebust out: 56391da177e4SLinus Torvalds return status; 56401da177e4SLinus Torvalds } 56411da177e4SLinus Torvalds 5642683b57b4STrond Myklebust /* 56438b173218SRicardo Labiaga * Decode FS_LOCATIONS response 5644683b57b4STrond Myklebust */ 564522958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 564622958463SBenny Halevy struct nfs4_fs_locations_res *res) 5647683b57b4STrond Myklebust { 5648683b57b4STrond Myklebust struct xdr_stream xdr; 5649683b57b4STrond Myklebust struct compound_hdr hdr; 5650683b57b4STrond Myklebust int status; 5651683b57b4STrond Myklebust 5652683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5653683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 56549b7b9fccSAndy Adamson if (status) 56559b7b9fccSAndy Adamson goto out; 56569b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 56579b7b9fccSAndy Adamson if (status) 5658683b57b4STrond Myklebust goto out; 5659683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5660683b57b4STrond Myklebust goto out; 5661683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5662683b57b4STrond Myklebust goto out; 5663683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 566422958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 566580e52aceSTrond Myklebust res->fs_locations->server, 566680e52aceSTrond Myklebust !RPC_IS_ASYNC(req->rq_task)); 5667683b57b4STrond Myklebust out: 5668683b57b4STrond Myklebust return status; 5669683b57b4STrond Myklebust } 5670683b57b4STrond Myklebust 567199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 567299fe60d0SBenny Halevy /* 56738b173218SRicardo Labiaga * Decode EXCHANGE_ID response 567499fe60d0SBenny Halevy */ 567599fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 567699fe60d0SBenny Halevy void *res) 567799fe60d0SBenny Halevy { 567899fe60d0SBenny Halevy struct xdr_stream xdr; 567999fe60d0SBenny Halevy struct compound_hdr hdr; 568099fe60d0SBenny Halevy int status; 568199fe60d0SBenny Halevy 568299fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 568399fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 568499fe60d0SBenny Halevy if (!status) 568599fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 568699fe60d0SBenny Halevy return status; 568799fe60d0SBenny Halevy } 56882050f0ccSAndy Adamson 56892050f0ccSAndy Adamson /* 56908b173218SRicardo Labiaga * Decode CREATE_SESSION response 5691fc931582SAndy Adamson */ 5692fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5693fc931582SAndy Adamson struct nfs41_create_session_res *res) 5694fc931582SAndy Adamson { 5695fc931582SAndy Adamson struct xdr_stream xdr; 5696fc931582SAndy Adamson struct compound_hdr hdr; 5697fc931582SAndy Adamson int status; 5698fc931582SAndy Adamson 5699fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5700fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5701fc931582SAndy Adamson if (!status) 5702fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5703fc931582SAndy Adamson return status; 5704fc931582SAndy Adamson } 5705fc931582SAndy Adamson 5706fc931582SAndy Adamson /* 57078b173218SRicardo Labiaga * Decode DESTROY_SESSION response 57080f3e66c6SAndy Adamson */ 57090f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 57100f3e66c6SAndy Adamson void *dummy) 57110f3e66c6SAndy Adamson { 57120f3e66c6SAndy Adamson struct xdr_stream xdr; 57130f3e66c6SAndy Adamson struct compound_hdr hdr; 57140f3e66c6SAndy Adamson int status; 57150f3e66c6SAndy Adamson 57160f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 57170f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 57180f3e66c6SAndy Adamson if (!status) 57190f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 57200f3e66c6SAndy Adamson return status; 57210f3e66c6SAndy Adamson } 57220f3e66c6SAndy Adamson 57230f3e66c6SAndy Adamson /* 57248b173218SRicardo Labiaga * Decode SEQUENCE response 5725fc01cea9SAndy Adamson */ 5726fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 5727fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5728fc01cea9SAndy Adamson { 5729fc01cea9SAndy Adamson struct xdr_stream xdr; 5730fc01cea9SAndy Adamson struct compound_hdr hdr; 5731fc01cea9SAndy Adamson int status; 5732fc01cea9SAndy Adamson 5733fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5734fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5735fc01cea9SAndy Adamson if (!status) 5736fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 5737fc01cea9SAndy Adamson return status; 5738fc01cea9SAndy Adamson } 5739fc01cea9SAndy Adamson 5740fc01cea9SAndy Adamson /* 57418b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 57422050f0ccSAndy Adamson */ 57432050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 57442050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 57452050f0ccSAndy Adamson { 57462050f0ccSAndy Adamson struct xdr_stream xdr; 57472050f0ccSAndy Adamson struct compound_hdr hdr; 57482050f0ccSAndy Adamson int status; 57492050f0ccSAndy Adamson 57502050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 57512050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 57522050f0ccSAndy Adamson if (!status) 57532050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 57542050f0ccSAndy Adamson if (!status) 57552050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 57562050f0ccSAndy Adamson if (!status) 57572050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 57582050f0ccSAndy Adamson return status; 57592050f0ccSAndy Adamson } 576018019753SRicardo Labiaga 576118019753SRicardo Labiaga /* 576218019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 576318019753SRicardo Labiaga */ 576418019753SRicardo Labiaga static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p, 576518019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 576618019753SRicardo Labiaga { 576718019753SRicardo Labiaga struct xdr_stream xdr; 576818019753SRicardo Labiaga struct compound_hdr hdr; 576918019753SRicardo Labiaga int status; 577018019753SRicardo Labiaga 577118019753SRicardo Labiaga xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 577218019753SRicardo Labiaga status = decode_compound_hdr(&xdr, &hdr); 577318019753SRicardo Labiaga if (!status) 577418019753SRicardo Labiaga status = decode_sequence(&xdr, &res->seq_res, rqstp); 577518019753SRicardo Labiaga if (!status) 577618019753SRicardo Labiaga status = decode_reclaim_complete(&xdr, (void *)NULL); 577718019753SRicardo Labiaga return status; 577818019753SRicardo Labiaga } 577999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 578099fe60d0SBenny Halevy 578182f2e547SBryan Schumaker __be32 *nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 578282f2e547SBryan Schumaker struct nfs_server *server, int plus) 57831da177e4SLinus Torvalds { 57841da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 57851da177e4SLinus Torvalds uint32_t len; 5786babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 5787babddc72SBryan Schumaker if (unlikely(!p)) 5788babddc72SBryan Schumaker goto out_overflow; 5789babddc72SBryan Schumaker if (!ntohl(*p++)) { 5790babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 5791babddc72SBryan Schumaker if (unlikely(!p)) 5792babddc72SBryan Schumaker goto out_overflow; 5793babddc72SBryan Schumaker if (!ntohl(*p++)) 57941da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 57951da177e4SLinus Torvalds entry->eof = 1; 57961da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 57971da177e4SLinus Torvalds } 57981da177e4SLinus Torvalds 5799babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 5800babddc72SBryan Schumaker if (unlikely(!p)) 5801babddc72SBryan Schumaker goto out_overflow; 58021da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 58031da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 58041da177e4SLinus Torvalds entry->len = ntohl(*p++); 5805babddc72SBryan Schumaker 5806babddc72SBryan Schumaker p = xdr_inline_decode(xdr, entry->len + 4); 5807babddc72SBryan Schumaker if (unlikely(!p)) 5808babddc72SBryan Schumaker goto out_overflow; 58091da177e4SLinus Torvalds entry->name = (const char *) p; 58101da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 58111da177e4SLinus Torvalds 58121da177e4SLinus Torvalds /* 58131da177e4SLinus Torvalds * In case the server doesn't return an inode number, 58141da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 58151da177e4SLinus Torvalds * since glibc seems to choke on it...) 58161da177e4SLinus Torvalds */ 58171da177e4SLinus Torvalds entry->ino = 1; 58184f082222STrond Myklebust entry->fattr->valid = 0; 58191da177e4SLinus Torvalds 58201da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 58211da177e4SLinus Torvalds if (len-- > 0) { 5822babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 5823babddc72SBryan Schumaker if (unlikely(!p)) 5824babddc72SBryan Schumaker goto out_overflow; 58251da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 58261da177e4SLinus Torvalds if (len-- > 0) { 5827babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 5828babddc72SBryan Schumaker if (unlikely(!p)) 5829babddc72SBryan Schumaker goto out_overflow; 58301da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 58311da177e4SLinus Torvalds p += len; 58321da177e4SLinus Torvalds } 58331da177e4SLinus Torvalds } 5834babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 5835babddc72SBryan Schumaker if (unlikely(!p)) 5836babddc72SBryan Schumaker goto out_overflow; 58371da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 58381da177e4SLinus Torvalds if (len > 0) { 583982f2e547SBryan Schumaker if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, server, 1) < 0) 5840babddc72SBryan Schumaker goto out_overflow; 584182f2e547SBryan Schumaker if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 584282f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 58431da177e4SLinus Torvalds } 58441da177e4SLinus Torvalds 5845babddc72SBryan Schumaker p = xdr_inline_peek(xdr, 8); 5846babddc72SBryan Schumaker if (p != NULL) 58471da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 5848babddc72SBryan Schumaker else 5849babddc72SBryan Schumaker entry->eof = 0; 5850babddc72SBryan Schumaker 58511da177e4SLinus Torvalds return p; 5852babddc72SBryan Schumaker 5853babddc72SBryan Schumaker out_overflow: 5854babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 5855babddc72SBryan Schumaker return ERR_PTR(-EIO); 58561da177e4SLinus Torvalds } 58571da177e4SLinus Torvalds 58581da177e4SLinus Torvalds /* 58591da177e4SLinus Torvalds * We need to translate between nfs status return values and 58601da177e4SLinus Torvalds * the local errno values which may not be the same. 58611da177e4SLinus Torvalds */ 58621da177e4SLinus Torvalds static struct { 58631da177e4SLinus Torvalds int stat; 58641da177e4SLinus Torvalds int errno; 58651da177e4SLinus Torvalds } nfs_errtbl[] = { 58661da177e4SLinus Torvalds { NFS4_OK, 0 }, 5867856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5868856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5869856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5870856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5871856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5872856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5873856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5874856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5875856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5876856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5877856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5878856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5879856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5880856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5881856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5882856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5883856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5884856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5885856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5886856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5887856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5888856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5889856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5890856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5891fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 5892856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5893856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5894856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5895856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5896856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5897856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 58981da177e4SLinus Torvalds * to be handled by a 58991da177e4SLinus Torvalds * middle-layer. 59001da177e4SLinus Torvalds */ 5901856dff3dSBenny Halevy { -1, -EIO } 59021da177e4SLinus Torvalds }; 59031da177e4SLinus Torvalds 59041da177e4SLinus Torvalds /* 59051da177e4SLinus Torvalds * Convert an NFS error code to a local one. 59061da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 59071da177e4SLinus Torvalds */ 59081da177e4SLinus Torvalds static int 59090a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 59101da177e4SLinus Torvalds { 59111da177e4SLinus Torvalds int i; 59121da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 59131da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 59141da177e4SLinus Torvalds return nfs_errtbl[i].errno; 59151da177e4SLinus Torvalds } 59161da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 59171da177e4SLinus Torvalds /* The server is looney tunes. */ 5918fdcb4577STrond Myklebust return -EREMOTEIO; 59191da177e4SLinus Torvalds } 59201da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 59211da177e4SLinus Torvalds * handle it. 59221da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 59231da177e4SLinus Torvalds * not conflict with native Linux error codes. 59241da177e4SLinus Torvalds */ 5925856dff3dSBenny Halevy return -stat; 59261da177e4SLinus Torvalds } 59271da177e4SLinus Torvalds 59281da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 59291da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 59301da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 59311da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 59321da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 59332bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 59342bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5935cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5936cc0175c1SChuck Lever .p_name = #proc, \ 59371da177e4SLinus Torvalds } 59381da177e4SLinus Torvalds 59391da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 59401da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 59411da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 59421da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 59431da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 59441da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 59451da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 59461da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 59471da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 59481da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 59491da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 59501da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 59511da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 59521da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 59531da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 59541da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 59551da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 59561da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 59571da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 59581da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 59591da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 59601da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 59611da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 59621da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 59631da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 59641da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 59651da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 59661da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 59671da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 59681da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 59691da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 59701da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5971029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 597223ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5973683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 5974d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 597599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 597699fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5977fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 59780f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 5979fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 59802050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 598118019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 598299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 59831da177e4SLinus Torvalds }; 59841da177e4SLinus Torvalds 59851da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 59861da177e4SLinus Torvalds .number = 4, 5987e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 59881da177e4SLinus Torvalds .procs = nfs4_procedures 59891da177e4SLinus Torvalds }; 59901da177e4SLinus Torvalds 59911da177e4SLinus Torvalds /* 59921da177e4SLinus Torvalds * Local variables: 59931da177e4SLinus Torvalds * c-basic-offset: 8 59941da177e4SLinus Torvalds * End: 59951da177e4SLinus Torvalds */ 5996