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" 55b1f69b75SAndy Adamson #include "pnfs.h" 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 601da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 611da177e4SLinus Torvalds 620a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 651da177e4SLinus Torvalds #ifdef DEBUG 661da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 671da177e4SLinus Torvalds #else 681da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 691da177e4SLinus Torvalds #endif 701da177e4SLinus Torvalds 711da177e4SLinus Torvalds /* lock,open owner id: 729f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 731da177e4SLinus Torvalds */ 749f958ab8STrond Myklebust #define open_owner_id_maxsz (1 + 4) 759f958ab8STrond Myklebust #define lock_owner_id_maxsz (1 + 4) 769104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 771da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 781da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 791da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 801da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 819104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 829104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 839104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 849104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 851da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 861da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 871da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 881da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 891da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 901da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 911da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 921da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9396928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9496928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 951da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 961da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 97bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 98bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 9996928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 10096928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 101bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10296928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10396928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10496928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1059104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1069104a55dSTrond Myklebust 1 + 2 + 1 + \ 1079104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1089104a55dSTrond Myklebust nfs4_group_maxsz + \ 1099104a55dSTrond Myklebust 4 + 4) 1101da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1111da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11256ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11356ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1142f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1151da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1161da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1171da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1181da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1191da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 120cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 121cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 122cc38bac3SChuck Lever 1 /* sc_prog */ + \ 123cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 124cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 125cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1261da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1271da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1281da177e4SLinus Torvalds 2 + \ 1291da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1301da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1311da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1321da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1331da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1341da177e4SLinus Torvalds (op_decode_hdr_maxsz) 135e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 136e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1372cebf828STrond Myklebust #define encode_share_access_maxsz \ 1382cebf828STrond Myklebust (2) 1394882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1402cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1412cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1422cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1432cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1442cebf828STrond Myklebust open_owner_id_maxsz + \ 1452cebf828STrond Myklebust encode_opentype_maxsz + \ 1462cebf828STrond Myklebust encode_claim_null_maxsz) 1472cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1489104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1492cebf828STrond Myklebust decode_ace_maxsz) 1502cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1512cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1529104a55dSTrond Myklebust decode_stateid_maxsz + \ 1532cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1542cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1552cebf828STrond Myklebust decode_delegation_maxsz) 1569104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1579104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1589104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1599104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1609104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1619104a55dSTrond Myklebust decode_stateid_maxsz) 1629104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1639104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1649104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1659104a55dSTrond Myklebust encode_share_access_maxsz) 1669104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1679104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1689104a55dSTrond Myklebust decode_stateid_maxsz) 1699104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1709104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1719104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1729104a55dSTrond Myklebust decode_stateid_maxsz) 1739104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1749104a55dSTrond Myklebust encode_stateid_maxsz + \ 1759104a55dSTrond Myklebust encode_attrs_maxsz) 1769104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1779104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1789104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1799104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1809104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1819104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1829104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1839104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1849104a55dSTrond Myklebust decode_verifier_maxsz) 1859104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1869104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1879104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1889104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1899104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1909104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1919104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1929104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1939104a55dSTrond Myklebust decode_verifier_maxsz) 1941da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1951da177e4SLinus Torvalds nfs4_name_maxsz) 1966ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 1976ce18391SBenny Halevy decode_change_info_maxsz) 1981da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1991da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2006ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2016ce18391SBenny Halevy decode_change_info_maxsz + \ 2026ce18391SBenny Halevy decode_change_info_maxsz) 2031da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2041da177e4SLinus Torvalds nfs4_name_maxsz) 2056ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 206daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2079104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2089104a55dSTrond Myklebust 7 + \ 209daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 210daccbdedSTrond Myklebust encode_lockowner_maxsz) 2119104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2129104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2139104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2149104a55dSTrond Myklebust decode_lock_denied_maxsz) 215daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 216daccbdedSTrond Myklebust encode_lockowner_maxsz) 2179104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2189104a55dSTrond Myklebust decode_lock_denied_maxsz) 2199104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2209104a55dSTrond Myklebust encode_stateid_maxsz + \ 2219104a55dSTrond Myklebust 4) 2229104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2239104a55dSTrond Myklebust decode_stateid_maxsz) 224d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 225d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 226d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 227d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 228d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2299104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2309104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2311da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2321da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 23394a6d753SChuck Lever 1 + \ 23496928206SJ. Bruce Fields nfs4_fattr_maxsz) 2351da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2361da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2379104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2389104a55dSTrond Myklebust encode_attrs_maxsz) 2392cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2402cebf828STrond Myklebust decode_change_info_maxsz + \ 2412cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2429104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2439104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2441da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2451da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2469104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2479104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2489104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2499104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2509104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2519104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 252e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 253e6889620STrond Myklebust (encode_getattr_maxsz) 254e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 255e6889620STrond Myklebust (0) 2569b7b9fccSAndy Adamson 2579b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 258fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 259fc931582SAndy Adamson 26099fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 26199fe60d0SBenny Halevy encode_verifier_maxsz + \ 26299fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 26399fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 26499fe60d0SBenny Halevy 1 /* flags */ + \ 26599fe60d0SBenny Halevy 1 /* spa_how */ + \ 26699fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 26799fe60d0SBenny Halevy 1 /* zero implemetation id array */) 26899fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 26999fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 27099fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 27199fe60d0SBenny Halevy 1 /* eir_flags */ + \ 27299fe60d0SBenny Halevy 1 /* spr_how */ + \ 27399fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 27499fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 27599fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 27699fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27799fe60d0SBenny Halevy /* eir_server_scope<> */ \ 27899fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27999fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 28099fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 281fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 282fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 283fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 284fc931582SAndy Adamson 1 /* ca_rdma_ird */) 285fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 286fc931582SAndy Adamson 2 /* csa_clientid */ + \ 287fc931582SAndy Adamson 1 /* csa_sequence */ + \ 288fc931582SAndy Adamson 1 /* csa_flags */ + \ 289fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 290fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 291fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 292fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 293fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 294fc931582SAndy Adamson 1 /* stamp */ + \ 295fc931582SAndy Adamson 1 /* machinename.len */ + \ 296fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 297fc931582SAndy Adamson 1 /* uid */ + \ 298fc931582SAndy Adamson 1 /* gid */ + \ 299fc931582SAndy Adamson 1 /* gids.len (0) */) 300fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 301fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 302fc931582SAndy Adamson 1 /* csr_sequence */ + \ 303fc931582SAndy Adamson 1 /* csr_flags */ + \ 304fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 305fc931582SAndy Adamson decode_channel_attrs_maxsz) 3060f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3070f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 308fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 309fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 310fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 311fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 31218019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 31318019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 314b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 315b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 316b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 317b1f69b75SAndy Adamson 1 /* layout type */ + \ 318b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 319b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 320b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 321b1f69b75SAndy Adamson 1 /* notification bitmap */) 322b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 323b1f69b75SAndy Adamson encode_stateid_maxsz) 324b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 325b1f69b75SAndy Adamson decode_stateid_maxsz + \ 326b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 3279b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3289b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3299b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3309b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3319b7b9fccSAndy Adamson 3321da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3331da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3341da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3361da177e4SLinus Torvalds encode_putfh_maxsz + \ 3379104a55dSTrond Myklebust encode_read_maxsz) 3381da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3401da177e4SLinus Torvalds decode_putfh_maxsz + \ 3419104a55dSTrond Myklebust decode_read_maxsz) 3421da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3441da177e4SLinus Torvalds encode_putfh_maxsz + \ 3459104a55dSTrond Myklebust encode_readlink_maxsz) 3461da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3479b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3481da177e4SLinus Torvalds decode_putfh_maxsz + \ 3499104a55dSTrond Myklebust decode_readlink_maxsz) 3501da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3519b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3521da177e4SLinus Torvalds encode_putfh_maxsz + \ 3539104a55dSTrond Myklebust encode_readdir_maxsz) 3541da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3559b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3561da177e4SLinus Torvalds decode_putfh_maxsz + \ 3579104a55dSTrond Myklebust decode_readdir_maxsz) 3581da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3599b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3601da177e4SLinus Torvalds encode_putfh_maxsz + \ 3619104a55dSTrond Myklebust encode_write_maxsz + \ 3624f9838c7STrond Myklebust encode_getattr_maxsz) 3631da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3651da177e4SLinus Torvalds decode_putfh_maxsz + \ 3669104a55dSTrond Myklebust decode_write_maxsz + \ 3674f9838c7STrond Myklebust decode_getattr_maxsz) 3681da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3701da177e4SLinus Torvalds encode_putfh_maxsz + \ 3719104a55dSTrond Myklebust encode_commit_maxsz + \ 3724f9838c7STrond Myklebust encode_getattr_maxsz) 3731da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3749b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3751da177e4SLinus Torvalds decode_putfh_maxsz + \ 3769104a55dSTrond Myklebust decode_commit_maxsz + \ 3774f9838c7STrond Myklebust decode_getattr_maxsz) 3781da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3799b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3801da177e4SLinus Torvalds encode_putfh_maxsz + \ 3812cebf828STrond Myklebust encode_savefh_maxsz + \ 3822cebf828STrond Myklebust encode_open_maxsz + \ 3832cebf828STrond Myklebust encode_getfh_maxsz + \ 3841da177e4SLinus Torvalds encode_getattr_maxsz + \ 3852cebf828STrond Myklebust encode_restorefh_maxsz + \ 3862cebf828STrond Myklebust encode_getattr_maxsz) 3871da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 3889b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3891da177e4SLinus Torvalds decode_putfh_maxsz + \ 3902cebf828STrond Myklebust decode_savefh_maxsz + \ 3912cebf828STrond Myklebust decode_open_maxsz + \ 3922cebf828STrond Myklebust decode_getfh_maxsz + \ 3931da177e4SLinus Torvalds decode_getattr_maxsz + \ 3942cebf828STrond Myklebust decode_restorefh_maxsz + \ 3952cebf828STrond Myklebust decode_getattr_maxsz) 3961da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3971da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3981da177e4SLinus Torvalds encode_putfh_maxsz + \ 3999104a55dSTrond Myklebust encode_open_confirm_maxsz) 4009104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4019104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4021da177e4SLinus Torvalds decode_putfh_maxsz + \ 4039104a55dSTrond Myklebust decode_open_confirm_maxsz) 4041da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4061da177e4SLinus Torvalds encode_putfh_maxsz + \ 4072cebf828STrond Myklebust encode_open_maxsz + \ 4082cebf828STrond Myklebust encode_getattr_maxsz) 4091da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4109b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4111da177e4SLinus Torvalds decode_putfh_maxsz + \ 4122cebf828STrond Myklebust decode_open_maxsz + \ 4132cebf828STrond Myklebust decode_getattr_maxsz) 4141da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4151da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4171da177e4SLinus Torvalds encode_putfh_maxsz + \ 4189104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 419516a6af6STrond Myklebust encode_getattr_maxsz) 4201da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4211da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4229b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4231da177e4SLinus Torvalds decode_putfh_maxsz + \ 4249104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 425516a6af6STrond Myklebust decode_getattr_maxsz) 4261da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4279b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4281da177e4SLinus Torvalds encode_putfh_maxsz + \ 4299104a55dSTrond Myklebust encode_close_maxsz + \ 430516a6af6STrond Myklebust encode_getattr_maxsz) 4311da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4331da177e4SLinus Torvalds decode_putfh_maxsz + \ 4349104a55dSTrond Myklebust decode_close_maxsz + \ 435516a6af6STrond Myklebust decode_getattr_maxsz) 4361da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4379b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4381da177e4SLinus Torvalds encode_putfh_maxsz + \ 4399104a55dSTrond Myklebust encode_setattr_maxsz + \ 4401da177e4SLinus Torvalds encode_getattr_maxsz) 4411da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4429b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4431da177e4SLinus Torvalds decode_putfh_maxsz + \ 4449104a55dSTrond Myklebust decode_setattr_maxsz + \ 4459104a55dSTrond Myklebust decode_getattr_maxsz) 4461da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4479b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4481da177e4SLinus Torvalds encode_putfh_maxsz + \ 4491da177e4SLinus Torvalds encode_fsinfo_maxsz) 4501da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4519b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4521da177e4SLinus Torvalds decode_putfh_maxsz + \ 4531da177e4SLinus Torvalds decode_fsinfo_maxsz) 4541da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4551da177e4SLinus Torvalds encode_renew_maxsz) 4561da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4571da177e4SLinus Torvalds decode_renew_maxsz) 4581da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4591da177e4SLinus Torvalds encode_setclientid_maxsz) 4601da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4611da177e4SLinus Torvalds decode_setclientid_maxsz) 4621da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4631da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4641da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4651da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4661da177e4SLinus Torvalds encode_fsinfo_maxsz) 4671da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4681da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4691da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4701da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4711da177e4SLinus Torvalds decode_fsinfo_maxsz) 4721da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4739b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4741da177e4SLinus Torvalds encode_putfh_maxsz + \ 4759104a55dSTrond Myklebust encode_lock_maxsz) 4761da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4781da177e4SLinus Torvalds decode_putfh_maxsz + \ 4799104a55dSTrond Myklebust decode_lock_maxsz) 4801da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4821da177e4SLinus Torvalds encode_putfh_maxsz + \ 4839104a55dSTrond Myklebust encode_lockt_maxsz) 4849104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 4859b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4869104a55dSTrond Myklebust decode_putfh_maxsz + \ 4879104a55dSTrond Myklebust decode_lockt_maxsz) 4881da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 4899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4901da177e4SLinus Torvalds encode_putfh_maxsz + \ 4919104a55dSTrond Myklebust encode_locku_maxsz) 4921da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 4939b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4941da177e4SLinus Torvalds decode_putfh_maxsz + \ 4959104a55dSTrond Myklebust decode_locku_maxsz) 496d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 497d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 498d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 499d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 500d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 501d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5021da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5041da177e4SLinus Torvalds encode_putfh_maxsz + \ 50576b32999STrond Myklebust encode_access_maxsz + \ 50676b32999STrond Myklebust encode_getattr_maxsz) 5071da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5091da177e4SLinus Torvalds decode_putfh_maxsz + \ 51076b32999STrond Myklebust decode_access_maxsz + \ 51176b32999STrond Myklebust decode_getattr_maxsz) 5121da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5141da177e4SLinus Torvalds encode_putfh_maxsz + \ 5151da177e4SLinus Torvalds encode_getattr_maxsz) 5161da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5179b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5181da177e4SLinus Torvalds decode_putfh_maxsz + \ 5191da177e4SLinus Torvalds decode_getattr_maxsz) 5201da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5221da177e4SLinus Torvalds encode_putfh_maxsz + \ 5231da177e4SLinus Torvalds encode_lookup_maxsz + \ 5241da177e4SLinus Torvalds encode_getattr_maxsz + \ 5251da177e4SLinus Torvalds encode_getfh_maxsz) 5261da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5281da177e4SLinus Torvalds decode_putfh_maxsz + \ 529e6889620STrond Myklebust decode_lookup_maxsz + \ 5301da177e4SLinus Torvalds decode_getattr_maxsz + \ 5311da177e4SLinus Torvalds decode_getfh_maxsz) 5321da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5341da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5351da177e4SLinus Torvalds encode_getattr_maxsz + \ 5361da177e4SLinus Torvalds encode_getfh_maxsz) 5371da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5389b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5391da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5401da177e4SLinus Torvalds decode_getattr_maxsz + \ 5411da177e4SLinus Torvalds decode_getfh_maxsz) 5421da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5441da177e4SLinus Torvalds encode_putfh_maxsz + \ 54516e42959STrond Myklebust encode_remove_maxsz + \ 54616e42959STrond Myklebust encode_getattr_maxsz) 5471da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5491da177e4SLinus Torvalds decode_putfh_maxsz + \ 5506ce18391SBenny Halevy decode_remove_maxsz + \ 55116e42959STrond Myklebust decode_getattr_maxsz) 5521da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5539b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5541da177e4SLinus Torvalds encode_putfh_maxsz + \ 5551da177e4SLinus Torvalds encode_savefh_maxsz + \ 5561da177e4SLinus Torvalds encode_putfh_maxsz + \ 5576caf2c82STrond Myklebust encode_rename_maxsz + \ 5586caf2c82STrond Myklebust encode_getattr_maxsz + \ 5596caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5606caf2c82STrond Myklebust encode_getattr_maxsz) 5611da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5629b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5631da177e4SLinus Torvalds decode_putfh_maxsz + \ 5641da177e4SLinus Torvalds decode_savefh_maxsz + \ 5651da177e4SLinus Torvalds decode_putfh_maxsz + \ 5666caf2c82STrond Myklebust decode_rename_maxsz + \ 5676caf2c82STrond Myklebust decode_getattr_maxsz + \ 5686caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5696caf2c82STrond Myklebust decode_getattr_maxsz) 5701da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5721da177e4SLinus Torvalds encode_putfh_maxsz + \ 5731da177e4SLinus Torvalds encode_savefh_maxsz + \ 5741da177e4SLinus Torvalds encode_putfh_maxsz + \ 57591ba2eeeSTrond Myklebust encode_link_maxsz + \ 57691ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 57791ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 57891ba2eeeSTrond Myklebust decode_getattr_maxsz) 5791da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5811da177e4SLinus Torvalds decode_putfh_maxsz + \ 5821da177e4SLinus Torvalds decode_savefh_maxsz + \ 5831da177e4SLinus Torvalds decode_putfh_maxsz + \ 58491ba2eeeSTrond Myklebust decode_link_maxsz + \ 58591ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 58691ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 58791ba2eeeSTrond Myklebust decode_getattr_maxsz) 5881da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 5899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5901da177e4SLinus Torvalds encode_putfh_maxsz + \ 5911da177e4SLinus Torvalds encode_symlink_maxsz + \ 5921da177e4SLinus Torvalds encode_getattr_maxsz + \ 5931da177e4SLinus Torvalds encode_getfh_maxsz) 5941da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 5959b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5961da177e4SLinus Torvalds decode_putfh_maxsz + \ 5971da177e4SLinus Torvalds decode_symlink_maxsz + \ 5981da177e4SLinus Torvalds decode_getattr_maxsz + \ 5991da177e4SLinus Torvalds decode_getfh_maxsz) 6001da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6021da177e4SLinus Torvalds encode_putfh_maxsz + \ 60356ae19f3STrond Myklebust encode_savefh_maxsz + \ 6041da177e4SLinus Torvalds encode_create_maxsz + \ 60556ae19f3STrond Myklebust encode_getfh_maxsz + \ 6061da177e4SLinus Torvalds encode_getattr_maxsz + \ 60756ae19f3STrond Myklebust encode_restorefh_maxsz + \ 60856ae19f3STrond Myklebust encode_getattr_maxsz) 6091da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6109b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6111da177e4SLinus Torvalds decode_putfh_maxsz + \ 61256ae19f3STrond Myklebust decode_savefh_maxsz + \ 6131da177e4SLinus Torvalds decode_create_maxsz + \ 61456ae19f3STrond Myklebust decode_getfh_maxsz + \ 6151da177e4SLinus Torvalds decode_getattr_maxsz + \ 61656ae19f3STrond Myklebust decode_restorefh_maxsz + \ 61756ae19f3STrond Myklebust decode_getattr_maxsz) 6181da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6199b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6201da177e4SLinus Torvalds encode_putfh_maxsz + \ 6211da177e4SLinus Torvalds encode_getattr_maxsz) 6221da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6241da177e4SLinus Torvalds decode_putfh_maxsz + \ 6251da177e4SLinus Torvalds decode_getattr_maxsz) 6261da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6279b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6281da177e4SLinus Torvalds encode_putfh_maxsz + \ 6299104a55dSTrond Myklebust encode_statfs_maxsz) 6301da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6319b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6321da177e4SLinus Torvalds decode_putfh_maxsz + \ 6339104a55dSTrond Myklebust decode_statfs_maxsz) 6341da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 636ab91f264STrond Myklebust encode_putfh_maxsz + \ 6371da177e4SLinus Torvalds encode_getattr_maxsz) 6381da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 640ab91f264STrond Myklebust decode_putfh_maxsz + \ 6411da177e4SLinus Torvalds decode_getattr_maxsz) 6421da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6441da177e4SLinus Torvalds encode_putfh_maxsz + \ 645fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 646fa178f29STrond Myklebust encode_getattr_maxsz) 6471da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 649fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 650fa178f29STrond Myklebust decode_getattr_maxsz) 651029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6529b7b9fccSAndy Adamson encode_sequence_maxsz + \ 653029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6549104a55dSTrond Myklebust encode_getacl_maxsz) 655029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6569b7b9fccSAndy Adamson decode_sequence_maxsz + \ 657029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6589104a55dSTrond Myklebust decode_getacl_maxsz) 65923ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6609b7b9fccSAndy Adamson encode_sequence_maxsz + \ 66123ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6629104a55dSTrond Myklebust encode_setacl_maxsz) 66323ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 66523ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6669104a55dSTrond Myklebust decode_setacl_maxsz) 667683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 668683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 670683b57b4STrond Myklebust encode_putfh_maxsz + \ 671e6889620STrond Myklebust encode_lookup_maxsz + \ 672e6889620STrond Myklebust encode_fs_locations_maxsz) 673683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 674683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6759b7b9fccSAndy Adamson decode_sequence_maxsz + \ 676683b57b4STrond Myklebust decode_putfh_maxsz + \ 677e6889620STrond Myklebust decode_lookup_maxsz + \ 678e6889620STrond Myklebust decode_fs_locations_maxsz) 67999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 68099fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 68199fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 68299fe60d0SBenny Halevy encode_exchange_id_maxsz) 68399fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 68499fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 68599fe60d0SBenny Halevy decode_exchange_id_maxsz) 686fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 687fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 688fc931582SAndy Adamson encode_create_session_maxsz) 689fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 690fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 691fc931582SAndy Adamson decode_create_session_maxsz) 6920f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 6930f3e66c6SAndy Adamson encode_destroy_session_maxsz) 6940f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 6950f3e66c6SAndy Adamson decode_destroy_session_maxsz) 696fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 697fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 698fc01cea9SAndy Adamson encode_sequence_maxsz) 699fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 700fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 701fc01cea9SAndy Adamson decode_sequence_maxsz) 7022050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7032050f0ccSAndy Adamson encode_sequence_maxsz + \ 7042050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7052050f0ccSAndy Adamson encode_fsinfo_maxsz) 7062050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7072050f0ccSAndy Adamson decode_sequence_maxsz + \ 7082050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7092050f0ccSAndy Adamson decode_fsinfo_maxsz) 71018019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 71118019753SRicardo Labiaga encode_sequence_maxsz + \ 71218019753SRicardo Labiaga encode_reclaim_complete_maxsz) 71318019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 71418019753SRicardo Labiaga decode_sequence_maxsz + \ 71518019753SRicardo Labiaga decode_reclaim_complete_maxsz) 716b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 717b1f69b75SAndy Adamson encode_sequence_maxsz +\ 718b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 719b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 720b1f69b75SAndy Adamson decode_sequence_maxsz + \ 721b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 722b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 723b1f69b75SAndy Adamson encode_sequence_maxsz + \ 724b1f69b75SAndy Adamson encode_putfh_maxsz + \ 725b1f69b75SAndy Adamson encode_layoutget_maxsz) 726b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 727b1f69b75SAndy Adamson decode_sequence_maxsz + \ 728b1f69b75SAndy Adamson decode_putfh_maxsz + \ 729b1f69b75SAndy Adamson decode_layoutget_maxsz) 7302449ea2eSAlexandros Batsakis 7312449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 7322449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 7332449ea2eSAlexandros Batsakis encode_sequence_maxsz + 7342449ea2eSAlexandros Batsakis encode_putfh_maxsz + 7352449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 7362449ea2eSAlexandros Batsakis XDR_UNIT); 7372449ea2eSAlexandros Batsakis 7382449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 7392449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 7402449ea2eSAlexandros Batsakis decode_sequence_maxsz + 7412449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 7422449ea2eSAlexandros Batsakis XDR_UNIT); 74399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 7441da177e4SLinus Torvalds 745bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 746bca79478STrond Myklebust [NF4BAD] = 0, 747bca79478STrond Myklebust [NF4REG] = S_IFREG, 748bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 749bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 750bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 751bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 752bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 753bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 754bca79478STrond Myklebust [NF4ATTRDIR] = 0, 755bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 7561da177e4SLinus Torvalds }; 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds struct compound_hdr { 7591da177e4SLinus Torvalds int32_t status; 7601da177e4SLinus Torvalds uint32_t nops; 761d017931cSAndy Adamson __be32 * nops_p; 7621da177e4SLinus Torvalds uint32_t taglen; 7631da177e4SLinus Torvalds char * tag; 7640c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 76566cc0429SBenny Halevy u32 minorversion; 7661da177e4SLinus Torvalds }; 7671da177e4SLinus Torvalds 76813c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 76913c65ce9SBenny Halevy { 77013c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 77113c65ce9SBenny Halevy BUG_ON(!p); 77213c65ce9SBenny Halevy return p; 77313c65ce9SBenny Halevy } 7741da177e4SLinus Torvalds 7751da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7761da177e4SLinus Torvalds { 7778687b63aSAl Viro __be32 *p; 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7801da177e4SLinus Torvalds BUG_ON(p == NULL); 7811da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7821da177e4SLinus Torvalds } 7831da177e4SLinus Torvalds 7840c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7850c4e8c18SBenny Halevy struct rpc_rqst *req, 7860c4e8c18SBenny Halevy struct compound_hdr *hdr) 7871da177e4SLinus Torvalds { 7888687b63aSAl Viro __be32 *p; 789a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 7900c4e8c18SBenny Halevy 7910c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7920c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7930c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7940c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7971da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 798811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 799811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 800e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 801d017931cSAndy Adamson hdr->nops_p = p; 80234558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 803d017931cSAndy Adamson } 804d017931cSAndy Adamson 805d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 806d017931cSAndy Adamson { 807fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 808d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 8091da177e4SLinus Torvalds } 8101da177e4SLinus Torvalds 8111da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 8121da177e4SLinus Torvalds { 8138687b63aSAl Viro __be32 *p; 8141da177e4SLinus Torvalds 8151da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 8161da177e4SLinus Torvalds BUG_ON(p == NULL); 8171da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 8181da177e4SLinus Torvalds } 8191da177e4SLinus Torvalds 820cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 8211da177e4SLinus Torvalds { 8221da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 8231da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 8241da177e4SLinus Torvalds int owner_namelen = 0; 8251da177e4SLinus Torvalds int owner_grouplen = 0; 8268687b63aSAl Viro __be32 *p; 8278687b63aSAl Viro __be32 *q; 8281da177e4SLinus Torvalds int len; 8291da177e4SLinus Torvalds uint32_t bmval0 = 0; 8301da177e4SLinus Torvalds uint32_t bmval1 = 0; 8311da177e4SLinus Torvalds 8321da177e4SLinus Torvalds /* 8331da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 8341da177e4SLinus Torvalds * In the worst-case, this would be 8351da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 8361da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 83723ec6965SJ. Bruce Fields * such as owner/group. 8381da177e4SLinus Torvalds */ 8391da177e4SLinus Torvalds len = 16; 8401da177e4SLinus Torvalds 8411da177e4SLinus Torvalds /* Sigh */ 8421da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 8431da177e4SLinus Torvalds len += 8; 8441da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 8451da177e4SLinus Torvalds len += 4; 8461da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 847955a857eSBryan Schumaker owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name, IDMAP_NAMESZ); 8481da177e4SLinus Torvalds if (owner_namelen < 0) { 849fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 8501da177e4SLinus Torvalds iap->ia_uid); 8511da177e4SLinus Torvalds /* XXX */ 8521da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 8531da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8541da177e4SLinus Torvalds /* goto out; */ 8551da177e4SLinus Torvalds } 8561da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8571da177e4SLinus Torvalds } 8581da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 859955a857eSBryan Schumaker owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group, IDMAP_NAMESZ); 8601da177e4SLinus Torvalds if (owner_grouplen < 0) { 861fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8621da177e4SLinus Torvalds iap->ia_gid); 8631da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8641da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8651da177e4SLinus Torvalds /* goto out; */ 8661da177e4SLinus Torvalds } 8671da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8681da177e4SLinus Torvalds } 8691da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8701da177e4SLinus Torvalds len += 16; 8711da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8721da177e4SLinus Torvalds len += 4; 8731da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8741da177e4SLinus Torvalds len += 16; 8751da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8761da177e4SLinus Torvalds len += 4; 87713c65ce9SBenny Halevy p = reserve_space(xdr, len); 8781da177e4SLinus Torvalds 8791da177e4SLinus Torvalds /* 8801da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8811da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8821da177e4SLinus Torvalds */ 883e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 8841da177e4SLinus Torvalds q = p; 8851da177e4SLinus Torvalds p += 3; 8861da177e4SLinus Torvalds 8871da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8881da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 889b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 8901da177e4SLinus Torvalds } 8911da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8921da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 893e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 8941da177e4SLinus Torvalds } 8951da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8961da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 897811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 8981da177e4SLinus Torvalds } 8991da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 9001da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 901811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 9021da177e4SLinus Torvalds } 9031da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 9041da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 905e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 906e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 907d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 908d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 9091da177e4SLinus Torvalds } 9101da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 9111da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 912e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 9131da177e4SLinus Torvalds } 9141da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 9151da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 916e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 917e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 918e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 919e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 9201da177e4SLinus Torvalds } 9211da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 9221da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 923e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds 9261da177e4SLinus Torvalds /* 9271da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 9281da177e4SLinus Torvalds */ 9291da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 930fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 9311da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 9321da177e4SLinus Torvalds BUG(); 9331da177e4SLinus Torvalds } 9341da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 9351da177e4SLinus Torvalds *q++ = htonl(bmval0); 9361da177e4SLinus Torvalds *q++ = htonl(bmval1); 93734558513SBenny Halevy *q = htonl(len); 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds /* out: */ 9401da177e4SLinus Torvalds } 9411da177e4SLinus Torvalds 942cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 9431da177e4SLinus Torvalds { 9448687b63aSAl Viro __be32 *p; 9451da177e4SLinus Torvalds 94613c65ce9SBenny Halevy p = reserve_space(xdr, 8); 947e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 94834558513SBenny Halevy *p = cpu_to_be32(access); 949d017931cSAndy Adamson hdr->nops++; 950dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 9511da177e4SLinus Torvalds } 9521da177e4SLinus Torvalds 953cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9541da177e4SLinus Torvalds { 9558687b63aSAl Viro __be32 *p; 9561da177e4SLinus Torvalds 95713c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 958e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 959e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 96034558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 961d017931cSAndy Adamson hdr->nops++; 962dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9631da177e4SLinus Torvalds } 9641da177e4SLinus Torvalds 965cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9661da177e4SLinus Torvalds { 9678687b63aSAl Viro __be32 *p; 9681da177e4SLinus Torvalds 96913c65ce9SBenny Halevy p = reserve_space(xdr, 16); 970e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 971b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 97234558513SBenny Halevy *p = cpu_to_be32(args->count); 973d017931cSAndy Adamson hdr->nops++; 974dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9751da177e4SLinus Torvalds } 9761da177e4SLinus Torvalds 977cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9781da177e4SLinus Torvalds { 9798687b63aSAl Viro __be32 *p; 9801da177e4SLinus Torvalds 98113c65ce9SBenny Halevy p = reserve_space(xdr, 8); 982e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 98334558513SBenny Halevy *p = cpu_to_be32(create->ftype); 9841da177e4SLinus Torvalds 9851da177e4SLinus Torvalds switch (create->ftype) { 9861da177e4SLinus Torvalds case NF4LNK: 98713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 98834558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 98994a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9901da177e4SLinus Torvalds break; 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 99313c65ce9SBenny Halevy p = reserve_space(xdr, 8); 994e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 99534558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 9961da177e4SLinus Torvalds break; 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds default: 9991da177e4SLinus Torvalds break; 10001da177e4SLinus Torvalds } 10011da177e4SLinus Torvalds 1002811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1003d017931cSAndy Adamson hdr->nops++; 1004dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 10051da177e4SLinus Torvalds 1006cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 10071da177e4SLinus Torvalds } 10081da177e4SLinus Torvalds 1009cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 10101da177e4SLinus Torvalds { 10118687b63aSAl Viro __be32 *p; 10121da177e4SLinus Torvalds 101313c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1014e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1015e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 101634558513SBenny Halevy *p = cpu_to_be32(bitmap); 1017d017931cSAndy Adamson hdr->nops++; 1018dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 10191da177e4SLinus Torvalds } 10201da177e4SLinus Torvalds 1021cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 10221da177e4SLinus Torvalds { 10238687b63aSAl Viro __be32 *p; 10241da177e4SLinus Torvalds 102513c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1026e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1027e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1028e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 102934558513SBenny Halevy *p = cpu_to_be32(bm1); 1030d017931cSAndy Adamson hdr->nops++; 1031dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 10321da177e4SLinus Torvalds } 10331da177e4SLinus Torvalds 1034cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10351da177e4SLinus Torvalds { 1036cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1037d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 10381da177e4SLinus Torvalds } 10391da177e4SLinus Torvalds 1040cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10411da177e4SLinus Torvalds { 1042cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 1043d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 10441da177e4SLinus Torvalds } 10451da177e4SLinus Torvalds 1046cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1047830b8e33SManoj Naik { 1048cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1049cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1050830b8e33SManoj Naik } 1051830b8e33SManoj Naik 1052cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10531da177e4SLinus Torvalds { 10548687b63aSAl Viro __be32 *p; 10551da177e4SLinus Torvalds 105613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 105734558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1058d017931cSAndy Adamson hdr->nops++; 1059dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10601da177e4SLinus Torvalds } 10611da177e4SLinus Torvalds 1062cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10631da177e4SLinus Torvalds { 10648687b63aSAl Viro __be32 *p; 10651da177e4SLinus Torvalds 106613c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1067e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1068811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1069d017931cSAndy Adamson hdr->nops++; 1070dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10711da177e4SLinus Torvalds } 10721da177e4SLinus Torvalds 1073911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1074911d1aafSTrond Myklebust { 1075911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1076911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1077911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1078911d1aafSTrond Myklebust } 1079911d1aafSTrond Myklebust 1080911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1081911d1aafSTrond Myklebust { 1082911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1083911d1aafSTrond Myklebust return ~(uint64_t)0; 1084911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1085911d1aafSTrond Myklebust } 1086911d1aafSTrond Myklebust 1087daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1088daccbdedSTrond Myklebust { 1089daccbdedSTrond Myklebust __be32 *p; 1090daccbdedSTrond Myklebust 1091daccbdedSTrond Myklebust p = reserve_space(xdr, 28); 1092daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1093daccbdedSTrond Myklebust *p++ = cpu_to_be32(16); 1094daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1095daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1096daccbdedSTrond Myklebust } 1097daccbdedSTrond Myklebust 10981da177e4SLinus Torvalds /* 10991da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 11001da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 11011da177e4SLinus Torvalds */ 1102cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 11031da177e4SLinus Torvalds { 11048687b63aSAl Viro __be32 *p; 11051da177e4SLinus Torvalds 110613c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1107e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1108e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1109e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1110b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1111b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 111234558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1113911d1aafSTrond Myklebust if (args->new_lock_owner){ 1114daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1115e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 111693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1117e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1118daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 11191da177e4SLinus Torvalds } 11201da177e4SLinus Torvalds else { 112113c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 112293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 112334558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 11241da177e4SLinus Torvalds } 1125d017931cSAndy Adamson hdr->nops++; 1126dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 11271da177e4SLinus Torvalds } 11281da177e4SLinus Torvalds 1129cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 11301da177e4SLinus Torvalds { 11318687b63aSAl Viro __be32 *p; 11321da177e4SLinus Torvalds 1133daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1134e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1135e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1136b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1137b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1138daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1139d017931cSAndy Adamson hdr->nops++; 1140dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 11411da177e4SLinus Torvalds } 11421da177e4SLinus Torvalds 1143cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 11441da177e4SLinus Torvalds { 11458687b63aSAl Viro __be32 *p; 11461da177e4SLinus Torvalds 114713c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1148e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1149e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1150e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 115193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1152b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 115334558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1154d017931cSAndy Adamson hdr->nops++; 1155dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11561da177e4SLinus Torvalds } 11571da177e4SLinus Torvalds 1158d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1159d3c7b7ccSTrond Myklebust { 1160d3c7b7ccSTrond Myklebust __be32 *p; 1161d3c7b7ccSTrond Myklebust 1162d3c7b7ccSTrond Myklebust p = reserve_space(xdr, 4); 1163d3c7b7ccSTrond Myklebust *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); 1164d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1165d3c7b7ccSTrond Myklebust hdr->nops++; 1166d3c7b7ccSTrond Myklebust hdr->replen += decode_release_lockowner_maxsz; 1167d3c7b7ccSTrond Myklebust } 1168d3c7b7ccSTrond Myklebust 1169cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11701da177e4SLinus Torvalds { 11711da177e4SLinus Torvalds int len = name->len; 11728687b63aSAl Viro __be32 *p; 11731da177e4SLinus Torvalds 117413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1175e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1176811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1177d017931cSAndy Adamson hdr->nops++; 1178dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11791da177e4SLinus Torvalds } 11801da177e4SLinus Torvalds 1181dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11821da177e4SLinus Torvalds { 11838687b63aSAl Viro __be32 *p; 11841da177e4SLinus Torvalds 118513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1186dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11871da177e4SLinus Torvalds case FMODE_READ: 1188e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11891da177e4SLinus Torvalds break; 11901da177e4SLinus Torvalds case FMODE_WRITE: 1191e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11921da177e4SLinus Torvalds break; 11931da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1194e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11951da177e4SLinus Torvalds break; 11961da177e4SLinus Torvalds default: 1197e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11981da177e4SLinus Torvalds } 119934558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 12001da177e4SLinus Torvalds } 12011da177e4SLinus Torvalds 12021da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12031da177e4SLinus Torvalds { 12048687b63aSAl Viro __be32 *p; 12051da177e4SLinus Torvalds /* 12061da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 12071da177e4SLinus Torvalds * owner 4 = 32 12081da177e4SLinus Torvalds */ 120913c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1210e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 121134558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1212dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 121313c65ce9SBenny Halevy p = reserve_space(xdr, 28); 1214b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1215e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 121693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 121734558513SBenny Halevy xdr_encode_hyper(p, arg->id); 12181da177e4SLinus Torvalds } 12191da177e4SLinus Torvalds 12201da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12211da177e4SLinus Torvalds { 12228687b63aSAl Viro __be32 *p; 12234882ef72SAlexandros Batsakis struct nfs_client *clp; 12241da177e4SLinus Torvalds 122513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12261da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 12271da177e4SLinus Torvalds case 0: 122834558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 12291da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 12301da177e4SLinus Torvalds break; 12311da177e4SLinus Torvalds default: 12324882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1233a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 12344882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 12354882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 12364882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 12374882ef72SAlexandros Batsakis } else { 12384882ef72SAlexandros Batsakis struct iattr dummy; 12394882ef72SAlexandros Batsakis 12404882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 12414882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 12424882ef72SAlexandros Batsakis dummy.ia_valid = 0; 12434882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 12444882ef72SAlexandros Batsakis } 12454882ef72SAlexandros Batsakis } else { 124634558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 12471da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 12481da177e4SLinus Torvalds } 12491da177e4SLinus Torvalds } 12504882ef72SAlexandros Batsakis } 12511da177e4SLinus Torvalds 12521da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12531da177e4SLinus Torvalds { 12548687b63aSAl Viro __be32 *p; 12551da177e4SLinus Torvalds 125613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12571da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 12581da177e4SLinus Torvalds case 0: 125934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 12601da177e4SLinus Torvalds break; 12611da177e4SLinus Torvalds default: 12621da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 126334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 12641da177e4SLinus Torvalds encode_createmode(xdr, arg); 12651da177e4SLinus Torvalds } 12661da177e4SLinus Torvalds } 12671da177e4SLinus Torvalds 1268bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 12691da177e4SLinus Torvalds { 12708687b63aSAl Viro __be32 *p; 12711da177e4SLinus Torvalds 127213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12731da177e4SLinus Torvalds switch (delegation_type) { 12741da177e4SLinus Torvalds case 0: 127534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 12761da177e4SLinus Torvalds break; 12771da177e4SLinus Torvalds case FMODE_READ: 127834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 12791da177e4SLinus Torvalds break; 12801da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 128134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 12821da177e4SLinus Torvalds break; 12831da177e4SLinus Torvalds default: 12841da177e4SLinus Torvalds BUG(); 12851da177e4SLinus Torvalds } 12861da177e4SLinus Torvalds } 12871da177e4SLinus Torvalds 12881da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12891da177e4SLinus Torvalds { 12908687b63aSAl Viro __be32 *p; 12911da177e4SLinus Torvalds 129213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 129334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 12941da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12951da177e4SLinus Torvalds } 12961da177e4SLinus Torvalds 1297bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12981da177e4SLinus Torvalds { 12998687b63aSAl Viro __be32 *p; 13001da177e4SLinus Torvalds 130113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 130234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 13031da177e4SLinus Torvalds encode_delegation_type(xdr, type); 13041da177e4SLinus Torvalds } 13051da177e4SLinus Torvalds 13061da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 13071da177e4SLinus Torvalds { 13088687b63aSAl Viro __be32 *p; 13091da177e4SLinus Torvalds 131013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1311e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 131234558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 13131da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 13141da177e4SLinus Torvalds } 13151da177e4SLinus Torvalds 1316cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 13171da177e4SLinus Torvalds { 13181da177e4SLinus Torvalds encode_openhdr(xdr, arg); 13191da177e4SLinus Torvalds encode_opentype(xdr, arg); 13201da177e4SLinus Torvalds switch (arg->claim) { 13211da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 13221da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 13231da177e4SLinus Torvalds break; 13241da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 13251da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 13261da177e4SLinus Torvalds break; 13271da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 13281da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 13291da177e4SLinus Torvalds break; 13301da177e4SLinus Torvalds default: 13311da177e4SLinus Torvalds BUG(); 13321da177e4SLinus Torvalds } 1333d017931cSAndy Adamson hdr->nops++; 1334dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 13351da177e4SLinus Torvalds } 13361da177e4SLinus Torvalds 1337cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 13381da177e4SLinus Torvalds { 13398687b63aSAl Viro __be32 *p; 13401da177e4SLinus Torvalds 134113c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1342e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 134393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 134434558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1345d017931cSAndy Adamson hdr->nops++; 1346dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 13471da177e4SLinus Torvalds } 13481da177e4SLinus Torvalds 1349cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 13501da177e4SLinus Torvalds { 13518687b63aSAl Viro __be32 *p; 13521da177e4SLinus Torvalds 135313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1354e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 135593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 135634558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1357dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1358d017931cSAndy Adamson hdr->nops++; 1359dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 13601da177e4SLinus Torvalds } 13611da177e4SLinus Torvalds 1362cf8cdbe5SAndy Adamson static void 1363d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 13641da177e4SLinus Torvalds { 13651da177e4SLinus Torvalds int len = fh->size; 13668687b63aSAl Viro __be32 *p; 13671da177e4SLinus Torvalds 136813c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1369e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1370811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1371d017931cSAndy Adamson hdr->nops++; 1372dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 13731da177e4SLinus Torvalds } 13741da177e4SLinus Torvalds 1375cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 13761da177e4SLinus Torvalds { 13778687b63aSAl Viro __be32 *p; 13781da177e4SLinus Torvalds 137913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 138034558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1381d017931cSAndy Adamson hdr->nops++; 1382dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13831da177e4SLinus Torvalds } 13841da177e4SLinus Torvalds 1385f11ac8dbSTrond Myklebust static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx) 13861da177e4SLinus Torvalds { 13871da177e4SLinus Torvalds nfs4_stateid stateid; 13888687b63aSAl Viro __be32 *p; 13891da177e4SLinus Torvalds 139013c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 13911da177e4SLinus Torvalds if (ctx->state != NULL) { 139277041ed9STrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); 139334558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 13941da177e4SLinus Torvalds } else 139534558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 13961da177e4SLinus Torvalds } 13971da177e4SLinus Torvalds 1398cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13991da177e4SLinus Torvalds { 14008687b63aSAl Viro __be32 *p; 14011da177e4SLinus Torvalds 140213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 140334558513SBenny Halevy *p = cpu_to_be32(OP_READ); 14041da177e4SLinus Torvalds 1405f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 14061da177e4SLinus Torvalds 140713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1408b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 140934558513SBenny Halevy *p = cpu_to_be32(args->count); 1410d017931cSAndy Adamson hdr->nops++; 1411dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 14121da177e4SLinus Torvalds } 14131da177e4SLinus Torvalds 1414cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 14151da177e4SLinus Torvalds { 141682f2e547SBryan Schumaker uint32_t attrs[2] = {0, 0}; 14176f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 14188687b63aSAl Viro __be32 *p; 14191da177e4SLinus Torvalds 142082f2e547SBryan Schumaker if (readdir->plus) { 142182f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 142282f2e547SBryan Schumaker FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE; 142382f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 142482f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 142582f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 142682f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 14276f7a35bdSTrond Myklebust dircount >>= 1; 142882f2e547SBryan Schumaker } 142982f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID; 143082f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID; 143197d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 143297d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 143397d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 143497d312d0SManoj Naik else 143597d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 14366f7a35bdSTrond Myklebust 14376f7a35bdSTrond Myklebust p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 14386f7a35bdSTrond Myklebust *p++ = cpu_to_be32(OP_READDIR); 14396f7a35bdSTrond Myklebust p = xdr_encode_hyper(p, readdir->cookie); 14406f7a35bdSTrond Myklebust p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 14416f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 14426f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 14436f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 144482f2e547SBryan Schumaker 1445e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 144634558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1447d017931cSAndy Adamson hdr->nops++; 1448dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 144944109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 145044109241SFred Isaman __func__, 1451eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1452eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1453eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1454eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1455eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 14561da177e4SLinus Torvalds } 14571da177e4SLinus Torvalds 1458cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 14591da177e4SLinus Torvalds { 14608687b63aSAl Viro __be32 *p; 14611da177e4SLinus Torvalds 146213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146334558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1464d017931cSAndy Adamson hdr->nops++; 1465dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 14661da177e4SLinus Torvalds } 14671da177e4SLinus Torvalds 1468cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 14691da177e4SLinus Torvalds { 14708687b63aSAl Viro __be32 *p; 14711da177e4SLinus Torvalds 147213c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1473e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1474811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1475d017931cSAndy Adamson hdr->nops++; 1476dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 14771da177e4SLinus Torvalds } 14781da177e4SLinus Torvalds 1479cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 14801da177e4SLinus Torvalds { 14818687b63aSAl Viro __be32 *p; 14821da177e4SLinus Torvalds 1483811652bdSBenny Halevy p = reserve_space(xdr, 4); 1484811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1485811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1486811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1487d017931cSAndy Adamson hdr->nops++; 1488dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14891da177e4SLinus Torvalds } 14901da177e4SLinus Torvalds 1491cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14921da177e4SLinus Torvalds { 14938687b63aSAl Viro __be32 *p; 14941da177e4SLinus Torvalds 149513c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1496e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 149734558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1498d017931cSAndy Adamson hdr->nops++; 1499dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 15001da177e4SLinus Torvalds } 15011da177e4SLinus Torvalds 1502cf8cdbe5SAndy Adamson static void 1503d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 150456ae19f3STrond Myklebust { 15058687b63aSAl Viro __be32 *p; 150656ae19f3STrond Myklebust 150713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 150834558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1509d017931cSAndy Adamson hdr->nops++; 1510dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 151156ae19f3STrond Myklebust } 151256ae19f3STrond Myklebust 15139f06c719SChuck Lever static void 1514d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 151523ec6965SJ. Bruce Fields { 15168687b63aSAl Viro __be32 *p; 151723ec6965SJ. Bruce Fields 151813c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1519e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 152034558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 152113c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1522e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 152334558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 15249f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 152513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 152634558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 152723ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1528d017931cSAndy Adamson hdr->nops++; 1529dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 153023ec6965SJ. Bruce Fields } 153123ec6965SJ. Bruce Fields 1532cf8cdbe5SAndy Adamson static void 1533d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15341da177e4SLinus Torvalds { 15358687b63aSAl Viro __be32 *p; 15361da177e4SLinus Torvalds 153713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 153834558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1539d017931cSAndy Adamson hdr->nops++; 1540dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 15411da177e4SLinus Torvalds } 15421da177e4SLinus Torvalds 1543cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 15441da177e4SLinus Torvalds { 15458687b63aSAl Viro __be32 *p; 15461da177e4SLinus Torvalds 154713c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1548e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 154934558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1550d017931cSAndy Adamson hdr->nops++; 1551dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1552cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 15531da177e4SLinus Torvalds } 15541da177e4SLinus Torvalds 1555cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 15561da177e4SLinus Torvalds { 15578687b63aSAl Viro __be32 *p; 15581da177e4SLinus Torvalds 155913c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1560e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 156134558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 15621da177e4SLinus Torvalds 15631da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 156413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 156534558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 15661da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 15671da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 156813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 156934558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1570d017931cSAndy Adamson hdr->nops++; 1571dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 15721da177e4SLinus Torvalds } 15731da177e4SLinus Torvalds 1574bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 15751da177e4SLinus Torvalds { 15768687b63aSAl Viro __be32 *p; 15771da177e4SLinus Torvalds 157813c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1579e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1580bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1581bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1582d017931cSAndy Adamson hdr->nops++; 1583dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15841da177e4SLinus Torvalds } 15851da177e4SLinus Torvalds 1586cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15871da177e4SLinus Torvalds { 15888687b63aSAl Viro __be32 *p; 15891da177e4SLinus Torvalds 159013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 159134558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 15921da177e4SLinus Torvalds 1593f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 15941da177e4SLinus Torvalds 159513c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1596b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1597e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 159834558513SBenny Halevy *p = cpu_to_be32(args->count); 15991da177e4SLinus Torvalds 16001da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1601d017931cSAndy Adamson hdr->nops++; 1602dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 16031da177e4SLinus Torvalds } 16041da177e4SLinus Torvalds 1605cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16061da177e4SLinus Torvalds { 16078687b63aSAl Viro __be32 *p; 16081da177e4SLinus Torvalds 160913c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 16101da177e4SLinus Torvalds 1611e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 161234558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1613d017931cSAndy Adamson hdr->nops++; 1614dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 16151da177e4SLinus Torvalds } 16169b7b9fccSAndy Adamson 161799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16189b7b9fccSAndy Adamson /* NFSv4.1 operations */ 161999fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 162099fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 162199fe60d0SBenny Halevy struct compound_hdr *hdr) 162299fe60d0SBenny Halevy { 162399fe60d0SBenny Halevy __be32 *p; 162499fe60d0SBenny Halevy 162513c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1626e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 162734558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 162899fe60d0SBenny Halevy 162999fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 163099fe60d0SBenny Halevy 163113c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1632e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1633e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 163434558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 163599fe60d0SBenny Halevy hdr->nops++; 163699fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 163799fe60d0SBenny Halevy } 1638fc931582SAndy Adamson 1639fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1640fc931582SAndy Adamson struct nfs41_create_session_args *args, 1641fc931582SAndy Adamson struct compound_hdr *hdr) 1642fc931582SAndy Adamson { 1643fc931582SAndy Adamson __be32 *p; 1644fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1645fc931582SAndy Adamson uint32_t len; 1646fc931582SAndy Adamson struct nfs_client *clp = args->client; 16478e0d46e1SMike Sager u32 max_resp_sz_cached; 16488e0d46e1SMike Sager 16498e0d46e1SMike Sager /* 16508e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 16518e0d46e1SMike Sager * 2 is the verifier. 16528e0d46e1SMike Sager */ 16538e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 16548e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1655fc931582SAndy Adamson 1656fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1657fc931582SAndy Adamson clp->cl_ipaddr); 165842edd698SBenny Halevy 165913c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1660e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1661b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1662e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1663e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1664fc931582SAndy Adamson 1665fc931582SAndy Adamson /* Fore Channel */ 1666e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1667e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1668e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 16698e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1670e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1671e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1672e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1673fc931582SAndy Adamson 1674fc931582SAndy Adamson /* Back Channel */ 1675e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1676e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1677e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1678e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1679e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1680e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1681e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1682fc931582SAndy Adamson 1683e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1684e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1685e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1686fc931582SAndy Adamson 1687fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1688e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1689811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1690e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1691e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 169234558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1693fc931582SAndy Adamson hdr->nops++; 1694fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1695fc931582SAndy Adamson } 16960f3e66c6SAndy Adamson 16970f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16980f3e66c6SAndy Adamson struct nfs4_session *session, 16990f3e66c6SAndy Adamson struct compound_hdr *hdr) 17000f3e66c6SAndy Adamson { 17010f3e66c6SAndy Adamson __be32 *p; 170213c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1703e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 170434558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17050f3e66c6SAndy Adamson hdr->nops++; 17060f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 17070f3e66c6SAndy Adamson } 170818019753SRicardo Labiaga 170918019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 171018019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 171118019753SRicardo Labiaga struct compound_hdr *hdr) 171218019753SRicardo Labiaga { 171318019753SRicardo Labiaga __be32 *p; 171418019753SRicardo Labiaga 171518019753SRicardo Labiaga p = reserve_space(xdr, 8); 171618019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 171718019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 171818019753SRicardo Labiaga hdr->nops++; 171918019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 172018019753SRicardo Labiaga } 172199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 172299fe60d0SBenny Halevy 17239b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 17249b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 17259b7b9fccSAndy Adamson struct compound_hdr *hdr) 17269b7b9fccSAndy Adamson { 17279b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 17289b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1729fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1730fc01cea9SAndy Adamson struct nfs4_slot *slot; 1731fc01cea9SAndy Adamson __be32 *p; 17329b7b9fccSAndy Adamson 17339b7b9fccSAndy Adamson if (!session) 17349b7b9fccSAndy Adamson return; 17359b7b9fccSAndy Adamson 1736fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1737fc01cea9SAndy Adamson 1738fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1739fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1740fc01cea9SAndy Adamson 174113c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1742e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1743fc01cea9SAndy Adamson 1744fc01cea9SAndy Adamson /* 1745fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1746fc01cea9SAndy Adamson */ 1747fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1748fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1749fc01cea9SAndy Adamson __func__, 1750fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1751fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1752fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1753fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1754fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1755fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 175693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1757e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1758e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1759e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 176034558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 17619b7b9fccSAndy Adamson hdr->nops++; 17629b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 17639b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 17649b7b9fccSAndy Adamson } 17659b7b9fccSAndy Adamson 1766b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1767b1f69b75SAndy Adamson static void 1768b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1769b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1770b1f69b75SAndy Adamson struct compound_hdr *hdr) 1771b1f69b75SAndy Adamson { 1772b1f69b75SAndy Adamson __be32 *p; 1773b1f69b75SAndy Adamson 1774b1f69b75SAndy Adamson p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); 1775b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICEINFO); 1776b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1777b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1778b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1779b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1780b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1781b1f69b75SAndy Adamson hdr->nops++; 1782b1f69b75SAndy Adamson hdr->replen += decode_getdeviceinfo_maxsz; 1783b1f69b75SAndy Adamson } 1784b1f69b75SAndy Adamson 1785b1f69b75SAndy Adamson static void 1786b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1787b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1788b1f69b75SAndy Adamson struct compound_hdr *hdr) 1789b1f69b75SAndy Adamson { 1790b1f69b75SAndy Adamson nfs4_stateid stateid; 1791b1f69b75SAndy Adamson __be32 *p; 1792b1f69b75SAndy Adamson 1793b1f69b75SAndy Adamson p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 1794b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTGET); 1795b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1796b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1797b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1798b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1799b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1800b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1801b1f69b75SAndy Adamson pnfs_get_layout_stateid(&stateid, NFS_I(args->inode)->layout, 1802b1f69b75SAndy Adamson args->ctx->state); 1803b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, &stateid.data, NFS4_STATEID_SIZE); 1804b1f69b75SAndy Adamson *p = cpu_to_be32(args->maxcount); 1805b1f69b75SAndy Adamson 1806b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1807b1f69b75SAndy Adamson __func__, 1808b1f69b75SAndy Adamson args->type, 1809b1f69b75SAndy Adamson args->range.iomode, 1810b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1811b1f69b75SAndy Adamson (unsigned long)args->range.length, 1812b1f69b75SAndy Adamson args->maxcount); 1813b1f69b75SAndy Adamson hdr->nops++; 1814b1f69b75SAndy Adamson hdr->replen += decode_layoutget_maxsz; 1815b1f69b75SAndy Adamson } 1816b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 1817b1f69b75SAndy Adamson 18181da177e4SLinus Torvalds /* 18191da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 18201da177e4SLinus Torvalds */ 18211da177e4SLinus Torvalds 182266cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 182366cc0429SBenny Halevy { 182466cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 182566cc0429SBenny Halevy if (args->sa_session) 1826a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 182766cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 182866cc0429SBenny Halevy return 0; 182966cc0429SBenny Halevy } 183066cc0429SBenny Halevy 18311da177e4SLinus Torvalds /* 18321da177e4SLinus Torvalds * Encode an ACCESS request 18331da177e4SLinus Torvalds */ 18349f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 18359f06c719SChuck Lever const struct nfs4_accessargs *args) 18361da177e4SLinus Torvalds { 18371da177e4SLinus Torvalds struct compound_hdr hdr = { 183866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18391da177e4SLinus Torvalds }; 18401da177e4SLinus Torvalds 18419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 18449f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 18459f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1846d017931cSAndy Adamson encode_nops(&hdr); 18471da177e4SLinus Torvalds } 18481da177e4SLinus Torvalds 18491da177e4SLinus Torvalds /* 18501da177e4SLinus Torvalds * Encode LOOKUP request 18511da177e4SLinus Torvalds */ 18529f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 18539f06c719SChuck Lever const struct nfs4_lookup_arg *args) 18541da177e4SLinus Torvalds { 18551da177e4SLinus Torvalds struct compound_hdr hdr = { 185666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18571da177e4SLinus Torvalds }; 18581da177e4SLinus Torvalds 18599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18619f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 18629f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 18639f06c719SChuck Lever encode_getfh(xdr, &hdr); 18649f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1865d017931cSAndy Adamson encode_nops(&hdr); 18661da177e4SLinus Torvalds } 18671da177e4SLinus Torvalds 18681da177e4SLinus Torvalds /* 18691da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 18701da177e4SLinus Torvalds */ 18719f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 18729f06c719SChuck Lever struct xdr_stream *xdr, 18739f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 18741da177e4SLinus Torvalds { 18751da177e4SLinus Torvalds struct compound_hdr hdr = { 187666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18771da177e4SLinus Torvalds }; 18781da177e4SLinus Torvalds 18799f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18809f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18819f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 18829f06c719SChuck Lever encode_getfh(xdr, &hdr); 18839f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1884d017931cSAndy Adamson encode_nops(&hdr); 18851da177e4SLinus Torvalds } 18861da177e4SLinus Torvalds 18871da177e4SLinus Torvalds /* 18881da177e4SLinus Torvalds * Encode REMOVE request 18891da177e4SLinus Torvalds */ 18909f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 18919f06c719SChuck Lever const struct nfs_removeargs *args) 18921da177e4SLinus Torvalds { 18931da177e4SLinus Torvalds struct compound_hdr hdr = { 189466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18951da177e4SLinus Torvalds }; 18961da177e4SLinus Torvalds 18979f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18989f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18999f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19009f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 19019f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1902d017931cSAndy Adamson encode_nops(&hdr); 19031da177e4SLinus Torvalds } 19041da177e4SLinus Torvalds 19051da177e4SLinus Torvalds /* 19061da177e4SLinus Torvalds * Encode RENAME request 19071da177e4SLinus Torvalds */ 19089f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 19099f06c719SChuck Lever const struct nfs_renameargs *args) 19101da177e4SLinus Torvalds { 19111da177e4SLinus Torvalds struct compound_hdr hdr = { 191266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19131da177e4SLinus Torvalds }; 19141da177e4SLinus Torvalds 19159f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19169f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19179f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 19189f06c719SChuck Lever encode_savefh(xdr, &hdr); 19199f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 19209f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 19219f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19229f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19239f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1924d017931cSAndy Adamson encode_nops(&hdr); 19251da177e4SLinus Torvalds } 19261da177e4SLinus Torvalds 19271da177e4SLinus Torvalds /* 19281da177e4SLinus Torvalds * Encode LINK request 19291da177e4SLinus Torvalds */ 19309f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 19319f06c719SChuck Lever const struct nfs4_link_arg *args) 19321da177e4SLinus Torvalds { 19331da177e4SLinus Torvalds struct compound_hdr hdr = { 193466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19351da177e4SLinus Torvalds }; 19361da177e4SLinus Torvalds 19379f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19389f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19399f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19409f06c719SChuck Lever encode_savefh(xdr, &hdr); 19419f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 19429f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 19439f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19449f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19459f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1946d017931cSAndy Adamson encode_nops(&hdr); 19471da177e4SLinus Torvalds } 19481da177e4SLinus Torvalds 19491da177e4SLinus Torvalds /* 19501da177e4SLinus Torvalds * Encode CREATE request 19511da177e4SLinus Torvalds */ 19529f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 19539f06c719SChuck Lever const struct nfs4_create_arg *args) 19541da177e4SLinus Torvalds { 19551da177e4SLinus Torvalds struct compound_hdr hdr = { 195666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19571da177e4SLinus Torvalds }; 19581da177e4SLinus Torvalds 19599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19609f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19619f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 19629f06c719SChuck Lever encode_savefh(xdr, &hdr); 19639f06c719SChuck Lever encode_create(xdr, args, &hdr); 19649f06c719SChuck Lever encode_getfh(xdr, &hdr); 19659f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19669f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19679f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1968d017931cSAndy Adamson encode_nops(&hdr); 19691da177e4SLinus Torvalds } 19701da177e4SLinus Torvalds 19711da177e4SLinus Torvalds /* 19721da177e4SLinus Torvalds * Encode SYMLINK request 19731da177e4SLinus Torvalds */ 19749f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 19759f06c719SChuck Lever const struct nfs4_create_arg *args) 19761da177e4SLinus Torvalds { 19779f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 19781da177e4SLinus Torvalds } 19791da177e4SLinus Torvalds 19801da177e4SLinus Torvalds /* 19811da177e4SLinus Torvalds * Encode GETATTR request 19821da177e4SLinus Torvalds */ 19839f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 19849f06c719SChuck Lever const struct nfs4_getattr_arg *args) 19851da177e4SLinus Torvalds { 19861da177e4SLinus Torvalds struct compound_hdr hdr = { 198766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19881da177e4SLinus Torvalds }; 19891da177e4SLinus Torvalds 19909f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19919f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19929f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19939f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1994d017931cSAndy Adamson encode_nops(&hdr); 19951da177e4SLinus Torvalds } 19961da177e4SLinus Torvalds 19971da177e4SLinus Torvalds /* 19981da177e4SLinus Torvalds * Encode a CLOSE request 19991da177e4SLinus Torvalds */ 20009f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 20019f06c719SChuck Lever struct nfs_closeargs *args) 20021da177e4SLinus Torvalds { 20031da177e4SLinus Torvalds struct compound_hdr hdr = { 200466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20051da177e4SLinus Torvalds }; 20061da177e4SLinus Torvalds 20079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20089f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20099f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20109f06c719SChuck Lever encode_close(xdr, args, &hdr); 20119f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2012d017931cSAndy Adamson encode_nops(&hdr); 20131da177e4SLinus Torvalds } 20141da177e4SLinus Torvalds 20151da177e4SLinus Torvalds /* 20161da177e4SLinus Torvalds * Encode an OPEN request 20171da177e4SLinus Torvalds */ 20189f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 20199f06c719SChuck Lever struct nfs_openargs *args) 20201da177e4SLinus Torvalds { 20211da177e4SLinus Torvalds struct compound_hdr hdr = { 202266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20231da177e4SLinus Torvalds }; 20241da177e4SLinus Torvalds 20259f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20269f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20279f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20289f06c719SChuck Lever encode_savefh(xdr, &hdr); 20299f06c719SChuck Lever encode_open(xdr, args, &hdr); 20309f06c719SChuck Lever encode_getfh(xdr, &hdr); 20319f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 20329f06c719SChuck Lever encode_restorefh(xdr, &hdr); 20339f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2034d017931cSAndy Adamson encode_nops(&hdr); 20351da177e4SLinus Torvalds } 20361da177e4SLinus Torvalds 20371da177e4SLinus Torvalds /* 20381da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 20391da177e4SLinus Torvalds */ 20409f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 20419f06c719SChuck Lever struct xdr_stream *xdr, 20429f06c719SChuck Lever struct nfs_open_confirmargs *args) 20431da177e4SLinus Torvalds { 20441da177e4SLinus Torvalds struct compound_hdr hdr = { 2045d017931cSAndy Adamson .nops = 0, 20461da177e4SLinus Torvalds }; 20471da177e4SLinus Torvalds 20489f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20499f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20509f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2051d017931cSAndy Adamson encode_nops(&hdr); 20521da177e4SLinus Torvalds } 20531da177e4SLinus Torvalds 20541da177e4SLinus Torvalds /* 20551da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 20561da177e4SLinus Torvalds */ 20579f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 20589f06c719SChuck Lever struct xdr_stream *xdr, 20599f06c719SChuck Lever struct nfs_openargs *args) 20601da177e4SLinus Torvalds { 20611da177e4SLinus Torvalds struct compound_hdr hdr = { 206266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20631da177e4SLinus Torvalds }; 20641da177e4SLinus Torvalds 20659f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20669f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20679f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20689f06c719SChuck Lever encode_open(xdr, args, &hdr); 20699f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2070d017931cSAndy Adamson encode_nops(&hdr); 20711da177e4SLinus Torvalds } 20721da177e4SLinus Torvalds 20731da177e4SLinus Torvalds /* 20741da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 20751da177e4SLinus Torvalds */ 20769f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 20779f06c719SChuck Lever struct xdr_stream *xdr, 20789f06c719SChuck Lever struct nfs_closeargs *args) 20791da177e4SLinus Torvalds { 20801da177e4SLinus Torvalds struct compound_hdr hdr = { 208166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20821da177e4SLinus Torvalds }; 20831da177e4SLinus Torvalds 20849f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20859f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20869f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20879f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 20889f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2089d017931cSAndy Adamson encode_nops(&hdr); 20901da177e4SLinus Torvalds } 20911da177e4SLinus Torvalds 20921da177e4SLinus Torvalds /* 20931da177e4SLinus Torvalds * Encode a LOCK request 20941da177e4SLinus Torvalds */ 20959f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 20969f06c719SChuck Lever struct nfs_lock_args *args) 20971da177e4SLinus Torvalds { 20981da177e4SLinus Torvalds struct compound_hdr hdr = { 209966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21001da177e4SLinus Torvalds }; 21011da177e4SLinus Torvalds 21029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21039f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21049f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21059f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2106d017931cSAndy Adamson encode_nops(&hdr); 21071da177e4SLinus Torvalds } 21081da177e4SLinus Torvalds 21091da177e4SLinus Torvalds /* 21101da177e4SLinus Torvalds * Encode a LOCKT request 21111da177e4SLinus Torvalds */ 21129f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 21139f06c719SChuck Lever struct nfs_lockt_args *args) 21141da177e4SLinus Torvalds { 21151da177e4SLinus Torvalds struct compound_hdr hdr = { 211666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21171da177e4SLinus Torvalds }; 21181da177e4SLinus Torvalds 21199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21209f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21219f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21229f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2123d017931cSAndy Adamson encode_nops(&hdr); 21241da177e4SLinus Torvalds } 21251da177e4SLinus Torvalds 21261da177e4SLinus Torvalds /* 21271da177e4SLinus Torvalds * Encode a LOCKU request 21281da177e4SLinus Torvalds */ 21299f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 21309f06c719SChuck Lever struct nfs_locku_args *args) 21311da177e4SLinus Torvalds { 21321da177e4SLinus Torvalds struct compound_hdr hdr = { 213366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21341da177e4SLinus Torvalds }; 21351da177e4SLinus Torvalds 21369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21379f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21389f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21399f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2140d017931cSAndy Adamson encode_nops(&hdr); 21411da177e4SLinus Torvalds } 21421da177e4SLinus Torvalds 21439f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 21449f06c719SChuck Lever struct xdr_stream *xdr, 21459f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2146d3c7b7ccSTrond Myklebust { 2147d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2148d3c7b7ccSTrond Myklebust .minorversion = 0, 2149d3c7b7ccSTrond Myklebust }; 2150d3c7b7ccSTrond Myklebust 21519f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21529f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2153d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2154d3c7b7ccSTrond Myklebust } 2155d3c7b7ccSTrond Myklebust 21561da177e4SLinus Torvalds /* 21571da177e4SLinus Torvalds * Encode a READLINK request 21581da177e4SLinus Torvalds */ 21599f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 21609f06c719SChuck Lever const struct nfs4_readlink *args) 21611da177e4SLinus Torvalds { 21621da177e4SLinus Torvalds struct compound_hdr hdr = { 216366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21641da177e4SLinus Torvalds }; 21651da177e4SLinus Torvalds 21669f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21679f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21689f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21699f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2170e3a535e1STrond Myklebust 217128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2172e3a535e1STrond Myklebust args->pgbase, args->pglen); 2173d017931cSAndy Adamson encode_nops(&hdr); 21741da177e4SLinus Torvalds } 21751da177e4SLinus Torvalds 21761da177e4SLinus Torvalds /* 21771da177e4SLinus Torvalds * Encode a READDIR request 21781da177e4SLinus Torvalds */ 21799f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 21809f06c719SChuck Lever const struct nfs4_readdir_arg *args) 21811da177e4SLinus Torvalds { 21821da177e4SLinus Torvalds struct compound_hdr hdr = { 218366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21841da177e4SLinus Torvalds }; 21851da177e4SLinus Torvalds 21869f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21879f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21889f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21899f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2190d6ac02dfSTrond Myklebust 219128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2192d6ac02dfSTrond Myklebust args->pgbase, args->count); 2193d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 219428f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2195d6ac02dfSTrond Myklebust args->pgbase, args->count); 2196d017931cSAndy Adamson encode_nops(&hdr); 21971da177e4SLinus Torvalds } 21981da177e4SLinus Torvalds 21991da177e4SLinus Torvalds /* 22001da177e4SLinus Torvalds * Encode a READ request 22011da177e4SLinus Torvalds */ 22029f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 22039f06c719SChuck Lever struct nfs_readargs *args) 22041da177e4SLinus Torvalds { 22051da177e4SLinus Torvalds struct compound_hdr hdr = { 220666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22071da177e4SLinus Torvalds }; 22081da177e4SLinus Torvalds 22099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22109f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22119f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22129f06c719SChuck Lever encode_read(xdr, args, &hdr); 22131da177e4SLinus Torvalds 221428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 22151da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 22164f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2217d017931cSAndy Adamson encode_nops(&hdr); 22181da177e4SLinus Torvalds } 22191da177e4SLinus Torvalds 22201da177e4SLinus Torvalds /* 22211da177e4SLinus Torvalds * Encode an SETATTR request 22221da177e4SLinus Torvalds */ 22239f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22249f06c719SChuck Lever struct nfs_setattrargs *args) 22251da177e4SLinus Torvalds { 22261da177e4SLinus Torvalds struct compound_hdr hdr = { 222766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22281da177e4SLinus Torvalds }; 22291da177e4SLinus Torvalds 22309f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22319f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22329f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22339f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 22349f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2235d017931cSAndy Adamson encode_nops(&hdr); 22361da177e4SLinus Torvalds } 22371da177e4SLinus Torvalds 22381da177e4SLinus Torvalds /* 2239029d105eSJ. Bruce Fields * Encode a GETACL request 2240029d105eSJ. Bruce Fields */ 22419f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2242029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2243029d105eSJ. Bruce Fields { 2244029d105eSJ. Bruce Fields struct compound_hdr hdr = { 224566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2246029d105eSJ. Bruce Fields }; 224728f56694SBenny Halevy uint32_t replen; 2248029d105eSJ. Bruce Fields 22499f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22509f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22519f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2252d327cf74SJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; 22539f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2254cf8cdbe5SAndy Adamson 225528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2256029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2257d017931cSAndy Adamson encode_nops(&hdr); 2258029d105eSJ. Bruce Fields } 2259029d105eSJ. Bruce Fields 2260029d105eSJ. Bruce Fields /* 22611da177e4SLinus Torvalds * Encode a WRITE request 22621da177e4SLinus Torvalds */ 22639f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 22649f06c719SChuck Lever struct nfs_writeargs *args) 22651da177e4SLinus Torvalds { 22661da177e4SLinus Torvalds struct compound_hdr hdr = { 226766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22681da177e4SLinus Torvalds }; 22691da177e4SLinus Torvalds 22709f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22719f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22729f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22739f06c719SChuck Lever encode_write(xdr, args, &hdr); 22744f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 22759f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2276d017931cSAndy Adamson encode_nops(&hdr); 22771da177e4SLinus Torvalds } 22781da177e4SLinus Torvalds 22791da177e4SLinus Torvalds /* 22801da177e4SLinus Torvalds * a COMMIT request 22811da177e4SLinus Torvalds */ 22829f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 22839f06c719SChuck Lever struct nfs_writeargs *args) 22841da177e4SLinus Torvalds { 22851da177e4SLinus Torvalds struct compound_hdr hdr = { 228666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22871da177e4SLinus Torvalds }; 22881da177e4SLinus Torvalds 22899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22919f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22929f06c719SChuck Lever encode_commit(xdr, args, &hdr); 22939f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2294d017931cSAndy Adamson encode_nops(&hdr); 22951da177e4SLinus Torvalds } 22961da177e4SLinus Torvalds 22971da177e4SLinus Torvalds /* 22981da177e4SLinus Torvalds * FSINFO request 22991da177e4SLinus Torvalds */ 23009f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 23019f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 23021da177e4SLinus Torvalds { 23031da177e4SLinus Torvalds struct compound_hdr hdr = { 230466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23051da177e4SLinus Torvalds }; 23061da177e4SLinus Torvalds 23079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23089f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23099f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23109f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2311d017931cSAndy Adamson encode_nops(&hdr); 23121da177e4SLinus Torvalds } 23131da177e4SLinus Torvalds 23141da177e4SLinus Torvalds /* 23151da177e4SLinus Torvalds * a PATHCONF request 23161da177e4SLinus Torvalds */ 23179f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 23189f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 23191da177e4SLinus Torvalds { 23201da177e4SLinus Torvalds struct compound_hdr hdr = { 232166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23221da177e4SLinus Torvalds }; 23231da177e4SLinus Torvalds 23249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23269f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23279f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2328d017931cSAndy Adamson &hdr); 2329d017931cSAndy Adamson encode_nops(&hdr); 23301da177e4SLinus Torvalds } 23311da177e4SLinus Torvalds 23321da177e4SLinus Torvalds /* 23331da177e4SLinus Torvalds * a STATFS request 23341da177e4SLinus Torvalds */ 23359f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 23369f06c719SChuck Lever const struct nfs4_statfs_arg *args) 23371da177e4SLinus Torvalds { 23381da177e4SLinus Torvalds struct compound_hdr hdr = { 233966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23401da177e4SLinus Torvalds }; 23411da177e4SLinus Torvalds 23429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23459f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2346d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2347d017931cSAndy Adamson encode_nops(&hdr); 23481da177e4SLinus Torvalds } 23491da177e4SLinus Torvalds 23501da177e4SLinus Torvalds /* 23511da177e4SLinus Torvalds * GETATTR_BITMAP request 23521da177e4SLinus Torvalds */ 23539f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 23549f06c719SChuck Lever struct xdr_stream *xdr, 235543652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 23561da177e4SLinus Torvalds { 23571da177e4SLinus Torvalds struct compound_hdr hdr = { 235866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23591da177e4SLinus Torvalds }; 23601da177e4SLinus Torvalds 23619f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23629f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23639f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 23649f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 23651da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 23661da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2367d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2368d017931cSAndy Adamson encode_nops(&hdr); 23691da177e4SLinus Torvalds } 23701da177e4SLinus Torvalds 23711da177e4SLinus Torvalds /* 23721da177e4SLinus Torvalds * a RENEW request 23731da177e4SLinus Torvalds */ 23749f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 23759f06c719SChuck Lever struct nfs_client *clp) 23761da177e4SLinus Torvalds { 23771da177e4SLinus Torvalds struct compound_hdr hdr = { 2378d017931cSAndy Adamson .nops = 0, 23791da177e4SLinus Torvalds }; 23801da177e4SLinus Torvalds 23819f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23829f06c719SChuck Lever encode_renew(xdr, clp, &hdr); 2383d017931cSAndy Adamson encode_nops(&hdr); 23841da177e4SLinus Torvalds } 23851da177e4SLinus Torvalds 23861da177e4SLinus Torvalds /* 23871da177e4SLinus Torvalds * a SETCLIENTID request 23881da177e4SLinus Torvalds */ 23899f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 23909f06c719SChuck Lever struct xdr_stream *xdr, 23919f06c719SChuck Lever struct nfs4_setclientid *sc) 23921da177e4SLinus Torvalds { 23931da177e4SLinus Torvalds struct compound_hdr hdr = { 2394d017931cSAndy Adamson .nops = 0, 23951da177e4SLinus Torvalds }; 23961da177e4SLinus Torvalds 23979f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23989f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2399d017931cSAndy Adamson encode_nops(&hdr); 24001da177e4SLinus Torvalds } 24011da177e4SLinus Torvalds 24021da177e4SLinus Torvalds /* 24031da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 24041da177e4SLinus Torvalds */ 24059f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 24069f06c719SChuck Lever struct xdr_stream *xdr, 24079f06c719SChuck Lever struct nfs4_setclientid_res *arg) 24081da177e4SLinus Torvalds { 24091da177e4SLinus Torvalds struct compound_hdr hdr = { 2410d017931cSAndy Adamson .nops = 0, 24111da177e4SLinus Torvalds }; 24121da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24131da177e4SLinus Torvalds 24149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24159f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 24169f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 24179f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2418d017931cSAndy Adamson encode_nops(&hdr); 24191da177e4SLinus Torvalds } 24201da177e4SLinus Torvalds 24211da177e4SLinus Torvalds /* 24221da177e4SLinus Torvalds * DELEGRETURN request 24231da177e4SLinus Torvalds */ 24249f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 24259f06c719SChuck Lever struct xdr_stream *xdr, 24269f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 24271da177e4SLinus Torvalds { 24281da177e4SLinus Torvalds struct compound_hdr hdr = { 242966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24301da177e4SLinus Torvalds }; 24311da177e4SLinus Torvalds 24329f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24339f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24349f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 24359f06c719SChuck Lever encode_delegreturn(xdr, args->stateid, &hdr); 24369f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2437d017931cSAndy Adamson encode_nops(&hdr); 24381da177e4SLinus Torvalds } 24391da177e4SLinus Torvalds 24401da177e4SLinus Torvalds /* 2441683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2442683b57b4STrond Myklebust */ 24439f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 24449f06c719SChuck Lever struct xdr_stream *xdr, 24459f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2446683b57b4STrond Myklebust { 2447683b57b4STrond Myklebust struct compound_hdr hdr = { 244866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2449683b57b4STrond Myklebust }; 245028f56694SBenny Halevy uint32_t replen; 2451683b57b4STrond Myklebust 24529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24539f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24549f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 24559f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 245628f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 24579f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2458cf8cdbe5SAndy Adamson 245928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2460683b57b4STrond Myklebust 0, PAGE_SIZE); 2461d017931cSAndy Adamson encode_nops(&hdr); 2462683b57b4STrond Myklebust } 2463683b57b4STrond Myklebust 246499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 246599fe60d0SBenny Halevy /* 246699fe60d0SBenny Halevy * EXCHANGE_ID request 246799fe60d0SBenny Halevy */ 24689f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 24699f06c719SChuck Lever struct xdr_stream *xdr, 247099fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 247199fe60d0SBenny Halevy { 247299fe60d0SBenny Halevy struct compound_hdr hdr = { 2473a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 247499fe60d0SBenny Halevy }; 247599fe60d0SBenny Halevy 24769f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24779f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 247899fe60d0SBenny Halevy encode_nops(&hdr); 247999fe60d0SBenny Halevy } 24802050f0ccSAndy Adamson 24812050f0ccSAndy Adamson /* 2482fc931582SAndy Adamson * a CREATE_SESSION request 2483fc931582SAndy Adamson */ 24849f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 24859f06c719SChuck Lever struct xdr_stream *xdr, 2486fc931582SAndy Adamson struct nfs41_create_session_args *args) 2487fc931582SAndy Adamson { 2488fc931582SAndy Adamson struct compound_hdr hdr = { 2489a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2490fc931582SAndy Adamson }; 2491fc931582SAndy Adamson 24929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24939f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2494fc931582SAndy Adamson encode_nops(&hdr); 2495fc931582SAndy Adamson } 2496fc931582SAndy Adamson 2497fc931582SAndy Adamson /* 24980f3e66c6SAndy Adamson * a DESTROY_SESSION request 24990f3e66c6SAndy Adamson */ 25009f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 25019f06c719SChuck Lever struct xdr_stream *xdr, 25020f3e66c6SAndy Adamson struct nfs4_session *session) 25030f3e66c6SAndy Adamson { 25040f3e66c6SAndy Adamson struct compound_hdr hdr = { 2505a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 25060f3e66c6SAndy Adamson }; 25070f3e66c6SAndy Adamson 25089f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25099f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 25100f3e66c6SAndy Adamson encode_nops(&hdr); 25110f3e66c6SAndy Adamson } 25120f3e66c6SAndy Adamson 25130f3e66c6SAndy Adamson /* 2514fc01cea9SAndy Adamson * a SEQUENCE request 2515fc01cea9SAndy Adamson */ 25169f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2517fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2518fc01cea9SAndy Adamson { 2519fc01cea9SAndy Adamson struct compound_hdr hdr = { 2520fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2521fc01cea9SAndy Adamson }; 2522fc01cea9SAndy Adamson 25239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25249f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2525fc01cea9SAndy Adamson encode_nops(&hdr); 2526fc01cea9SAndy Adamson } 2527fc01cea9SAndy Adamson 2528fc01cea9SAndy Adamson /* 25292050f0ccSAndy Adamson * a GET_LEASE_TIME request 25302050f0ccSAndy Adamson */ 25319f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 25329f06c719SChuck Lever struct xdr_stream *xdr, 25332050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 25342050f0ccSAndy Adamson { 25352050f0ccSAndy Adamson struct compound_hdr hdr = { 25362050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 25372050f0ccSAndy Adamson }; 25382050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 25392050f0ccSAndy Adamson 25409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25419f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 25429f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 25439f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 25442050f0ccSAndy Adamson encode_nops(&hdr); 25452050f0ccSAndy Adamson } 254618019753SRicardo Labiaga 254718019753SRicardo Labiaga /* 254818019753SRicardo Labiaga * a RECLAIM_COMPLETE request 254918019753SRicardo Labiaga */ 25509f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 25519f06c719SChuck Lever struct xdr_stream *xdr, 255218019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 255318019753SRicardo Labiaga { 255418019753SRicardo Labiaga struct compound_hdr hdr = { 255518019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 255618019753SRicardo Labiaga }; 255718019753SRicardo Labiaga 25589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25609f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 256118019753SRicardo Labiaga encode_nops(&hdr); 256218019753SRicardo Labiaga } 256318019753SRicardo Labiaga 2564b1f69b75SAndy Adamson /* 2565b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2566b1f69b75SAndy Adamson */ 25679f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 25689f06c719SChuck Lever struct xdr_stream *xdr, 2569b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2570b1f69b75SAndy Adamson { 2571b1f69b75SAndy Adamson struct compound_hdr hdr = { 2572b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2573b1f69b75SAndy Adamson }; 2574b1f69b75SAndy Adamson 25759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25769f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25779f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2578b1f69b75SAndy Adamson 2579b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2580b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2581b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2582b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2583b1f69b75SAndy Adamson args->pdev->pglen); 2584b1f69b75SAndy Adamson 2585b1f69b75SAndy Adamson encode_nops(&hdr); 2586b1f69b75SAndy Adamson } 2587b1f69b75SAndy Adamson 2588b1f69b75SAndy Adamson /* 2589b1f69b75SAndy Adamson * Encode LAYOUTGET request 2590b1f69b75SAndy Adamson */ 25919f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 25929f06c719SChuck Lever struct xdr_stream *xdr, 2593b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2594b1f69b75SAndy Adamson { 2595b1f69b75SAndy Adamson struct compound_hdr hdr = { 2596b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2597b1f69b75SAndy Adamson }; 2598b1f69b75SAndy Adamson 25999f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26009f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26019f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 26029f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 2603b1f69b75SAndy Adamson encode_nops(&hdr); 2604b1f69b75SAndy Adamson } 260599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 260699fe60d0SBenny Halevy 2607686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2608686841b3SBenny Halevy { 2609686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2610686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2611686841b3SBenny Halevy func, xdr->end - xdr->p); 2612686841b3SBenny Halevy } 26131da177e4SLinus Torvalds 2614683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 26151da177e4SLinus Torvalds { 26168687b63aSAl Viro __be32 *p; 26171da177e4SLinus Torvalds 2618c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2619c0eae66eSBenny Halevy if (unlikely(!p)) 2620c0eae66eSBenny Halevy goto out_overflow; 2621cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2622c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2623c0eae66eSBenny Halevy if (unlikely(!p)) 2624c0eae66eSBenny Halevy goto out_overflow; 26251da177e4SLinus Torvalds *string = (char *)p; 26261da177e4SLinus Torvalds return 0; 2627c0eae66eSBenny Halevy out_overflow: 2628c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2629c0eae66eSBenny Halevy return -EIO; 26301da177e4SLinus Torvalds } 26311da177e4SLinus Torvalds 26321da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 26331da177e4SLinus Torvalds { 26348687b63aSAl Viro __be32 *p; 26351da177e4SLinus Torvalds 2636c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2637c0eae66eSBenny Halevy if (unlikely(!p)) 2638c0eae66eSBenny Halevy goto out_overflow; 26396f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2640cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 26411da177e4SLinus Torvalds 2642c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2643c0eae66eSBenny Halevy if (unlikely(!p)) 2644c0eae66eSBenny Halevy goto out_overflow; 26451da177e4SLinus Torvalds hdr->tag = (char *)p; 26461da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2647cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2648aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2649aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 26501da177e4SLinus Torvalds return 0; 2651c0eae66eSBenny Halevy out_overflow: 2652c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2653c0eae66eSBenny Halevy return -EIO; 26541da177e4SLinus Torvalds } 26551da177e4SLinus Torvalds 26561da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 26571da177e4SLinus Torvalds { 26588687b63aSAl Viro __be32 *p; 26591da177e4SLinus Torvalds uint32_t opnum; 26601da177e4SLinus Torvalds int32_t nfserr; 26611da177e4SLinus Torvalds 2662c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2663c0eae66eSBenny Halevy if (unlikely(!p)) 2664c0eae66eSBenny Halevy goto out_overflow; 26656f723f77SBenny Halevy opnum = be32_to_cpup(p++); 26661da177e4SLinus Torvalds if (opnum != expected) { 2667fe82a183SChuck Lever dprintk("nfs: Server returned operation" 26681da177e4SLinus Torvalds " %d but we issued a request for %d\n", 26691da177e4SLinus Torvalds opnum, expected); 26701da177e4SLinus Torvalds return -EIO; 26711da177e4SLinus Torvalds } 2672cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 26731da177e4SLinus Torvalds if (nfserr != NFS_OK) 2674856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 26751da177e4SLinus Torvalds return 0; 2676c0eae66eSBenny Halevy out_overflow: 2677c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2678c0eae66eSBenny Halevy return -EIO; 26791da177e4SLinus Torvalds } 26801da177e4SLinus Torvalds 26811da177e4SLinus Torvalds /* Dummy routine */ 2682adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 26831da177e4SLinus Torvalds { 26848687b63aSAl Viro __be32 *p; 2685683b57b4STrond Myklebust unsigned int strlen; 26861da177e4SLinus Torvalds char *str; 26871da177e4SLinus Torvalds 2688c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2689c0eae66eSBenny Halevy if (likely(p)) 26901da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2691c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2692c0eae66eSBenny Halevy return -EIO; 26931da177e4SLinus Torvalds } 26941da177e4SLinus Torvalds 26951da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 26961da177e4SLinus Torvalds { 26978687b63aSAl Viro uint32_t bmlen; 26988687b63aSAl Viro __be32 *p; 26991da177e4SLinus Torvalds 2700c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2701c0eae66eSBenny Halevy if (unlikely(!p)) 2702c0eae66eSBenny Halevy goto out_overflow; 2703cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 27041da177e4SLinus Torvalds 27051da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2706c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2707c0eae66eSBenny Halevy if (unlikely(!p)) 2708c0eae66eSBenny Halevy goto out_overflow; 27091da177e4SLinus Torvalds if (bmlen > 0) { 27106f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 27111da177e4SLinus Torvalds if (bmlen > 1) 2712cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 27131da177e4SLinus Torvalds } 27141da177e4SLinus Torvalds return 0; 2715c0eae66eSBenny Halevy out_overflow: 2716c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2717c0eae66eSBenny Halevy return -EIO; 27181da177e4SLinus Torvalds } 27191da177e4SLinus Torvalds 27208687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 27211da177e4SLinus Torvalds { 27228687b63aSAl Viro __be32 *p; 27231da177e4SLinus Torvalds 2724c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2725c0eae66eSBenny Halevy if (unlikely(!p)) 2726c0eae66eSBenny Halevy goto out_overflow; 2727cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 27281da177e4SLinus Torvalds *savep = xdr->p; 27291da177e4SLinus Torvalds return 0; 2730c0eae66eSBenny Halevy out_overflow: 2731c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2732c0eae66eSBenny Halevy return -EIO; 27331da177e4SLinus Torvalds } 27341da177e4SLinus Torvalds 27351da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 27361da177e4SLinus Torvalds { 27371da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 27383388bff5SRoman Borisov int ret; 27393388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 27403388bff5SRoman Borisov if (unlikely(ret < 0)) 27413388bff5SRoman Borisov return ret; 27421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 27431da177e4SLinus Torvalds } else 27441da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 274544109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 27461da177e4SLinus Torvalds return 0; 27471da177e4SLinus Torvalds } 27481da177e4SLinus Torvalds 27491da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 27501da177e4SLinus Torvalds { 27518687b63aSAl Viro __be32 *p; 2752409924e4STrond Myklebust int ret = 0; 27531da177e4SLinus Torvalds 27541da177e4SLinus Torvalds *type = 0; 27551da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 27561da177e4SLinus Torvalds return -EIO; 27571da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2758c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2759c0eae66eSBenny Halevy if (unlikely(!p)) 2760c0eae66eSBenny Halevy goto out_overflow; 2761cccddf4fSBenny Halevy *type = be32_to_cpup(p); 27621da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 27633110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 27641da177e4SLinus Torvalds return -EIO; 27651da177e4SLinus Torvalds } 27661da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2767409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 27681da177e4SLinus Torvalds } 2769bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2770409924e4STrond Myklebust return ret; 2771c0eae66eSBenny Halevy out_overflow: 2772c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2773c0eae66eSBenny Halevy return -EIO; 27741da177e4SLinus Torvalds } 27751da177e4SLinus Torvalds 27761da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 27771da177e4SLinus Torvalds { 27788687b63aSAl Viro __be32 *p; 2779409924e4STrond Myklebust int ret = 0; 27801da177e4SLinus Torvalds 27811da177e4SLinus Torvalds *change = 0; 27821da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 27831da177e4SLinus Torvalds return -EIO; 27841da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2785c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2786c0eae66eSBenny Halevy if (unlikely(!p)) 2787c0eae66eSBenny Halevy goto out_overflow; 2788cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 27891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2790409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 27911da177e4SLinus Torvalds } 27923110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 27931da177e4SLinus Torvalds (unsigned long long)*change); 2794409924e4STrond Myklebust return ret; 2795c0eae66eSBenny Halevy out_overflow: 2796c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2797c0eae66eSBenny Halevy return -EIO; 27981da177e4SLinus Torvalds } 27991da177e4SLinus Torvalds 28001da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 28011da177e4SLinus Torvalds { 28028687b63aSAl Viro __be32 *p; 2803409924e4STrond Myklebust int ret = 0; 28041da177e4SLinus Torvalds 28051da177e4SLinus Torvalds *size = 0; 28061da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 28071da177e4SLinus Torvalds return -EIO; 28081da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2809c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2810c0eae66eSBenny Halevy if (unlikely(!p)) 2811c0eae66eSBenny Halevy goto out_overflow; 2812cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 28131da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2814409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 28151da177e4SLinus Torvalds } 28163110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2817409924e4STrond Myklebust return ret; 2818c0eae66eSBenny Halevy out_overflow: 2819c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2820c0eae66eSBenny Halevy return -EIO; 28211da177e4SLinus Torvalds } 28221da177e4SLinus Torvalds 28231da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28241da177e4SLinus Torvalds { 28258687b63aSAl Viro __be32 *p; 28261da177e4SLinus Torvalds 28271da177e4SLinus Torvalds *res = 0; 28281da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 28291da177e4SLinus Torvalds return -EIO; 28301da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2831c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2832c0eae66eSBenny Halevy if (unlikely(!p)) 2833c0eae66eSBenny Halevy goto out_overflow; 2834cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28351da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 28361da177e4SLinus Torvalds } 28373110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 28381da177e4SLinus Torvalds return 0; 2839c0eae66eSBenny Halevy out_overflow: 2840c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2841c0eae66eSBenny Halevy return -EIO; 28421da177e4SLinus Torvalds } 28431da177e4SLinus Torvalds 28441da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28451da177e4SLinus Torvalds { 28468687b63aSAl Viro __be32 *p; 28471da177e4SLinus Torvalds 28481da177e4SLinus Torvalds *res = 0; 28491da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 28501da177e4SLinus Torvalds return -EIO; 28511da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2852c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2853c0eae66eSBenny Halevy if (unlikely(!p)) 2854c0eae66eSBenny Halevy goto out_overflow; 2855cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28561da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 28571da177e4SLinus Torvalds } 28583110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 28591da177e4SLinus Torvalds return 0; 2860c0eae66eSBenny Halevy out_overflow: 2861c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2862c0eae66eSBenny Halevy return -EIO; 28631da177e4SLinus Torvalds } 28641da177e4SLinus Torvalds 28658b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 28661da177e4SLinus Torvalds { 28678687b63aSAl Viro __be32 *p; 2868409924e4STrond Myklebust int ret = 0; 28691da177e4SLinus Torvalds 28701da177e4SLinus Torvalds fsid->major = 0; 28711da177e4SLinus Torvalds fsid->minor = 0; 28721da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 28731da177e4SLinus Torvalds return -EIO; 28741da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2875c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2876c0eae66eSBenny Halevy if (unlikely(!p)) 2877c0eae66eSBenny Halevy goto out_overflow; 28783ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2879cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 28801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2881409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 28821da177e4SLinus Torvalds } 28833110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 28841da177e4SLinus Torvalds (unsigned long long)fsid->major, 28851da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2886409924e4STrond Myklebust return ret; 2887c0eae66eSBenny Halevy out_overflow: 2888c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2889c0eae66eSBenny Halevy return -EIO; 28901da177e4SLinus Torvalds } 28911da177e4SLinus Torvalds 28921da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28931da177e4SLinus Torvalds { 28948687b63aSAl Viro __be32 *p; 28951da177e4SLinus Torvalds 28961da177e4SLinus Torvalds *res = 60; 28971da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 28981da177e4SLinus Torvalds return -EIO; 28991da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2900c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2901c0eae66eSBenny Halevy if (unlikely(!p)) 2902c0eae66eSBenny Halevy goto out_overflow; 2903cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29041da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 29051da177e4SLinus Torvalds } 29063110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 29071da177e4SLinus Torvalds return 0; 2908c0eae66eSBenny Halevy out_overflow: 2909c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2910c0eae66eSBenny Halevy return -EIO; 29111da177e4SLinus Torvalds } 29121da177e4SLinus Torvalds 2913ae42c70aSBryan Schumaker static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap) 2914ae42c70aSBryan Schumaker { 2915ae42c70aSBryan Schumaker __be32 *p; 2916ae42c70aSBryan Schumaker 2917ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 2918ae42c70aSBryan Schumaker return -EIO; 2919ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 2920ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 2921ae42c70aSBryan Schumaker if (unlikely(!p)) 2922ae42c70aSBryan Schumaker goto out_overflow; 2923ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 2924ae42c70aSBryan Schumaker } 2925ae42c70aSBryan Schumaker return 0; 2926ae42c70aSBryan Schumaker out_overflow: 2927ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 2928ae42c70aSBryan Schumaker return -EIO; 2929ae42c70aSBryan Schumaker } 2930ae42c70aSBryan Schumaker 2931ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 2932ae42c70aSBryan Schumaker { 2933ae42c70aSBryan Schumaker __be32 *p; 2934ae42c70aSBryan Schumaker int len; 2935ae42c70aSBryan Schumaker 29367ad07353STrond Myklebust if (fh != NULL) 2937ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 2938ae42c70aSBryan Schumaker 2939ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 2940ae42c70aSBryan Schumaker return -EIO; 2941ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 2942ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 2943ae42c70aSBryan Schumaker if (unlikely(!p)) 2944ae42c70aSBryan Schumaker goto out_overflow; 2945ae42c70aSBryan Schumaker len = be32_to_cpup(p); 2946ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 2947ae42c70aSBryan Schumaker return -EIO; 2948ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 2949ae42c70aSBryan Schumaker if (unlikely(!p)) 2950ae42c70aSBryan Schumaker goto out_overflow; 29517ad07353STrond Myklebust if (fh != NULL) { 2952ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 29537ad07353STrond Myklebust fh->size = len; 29547ad07353STrond Myklebust } 2955ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 2956ae42c70aSBryan Schumaker } 2957ae42c70aSBryan Schumaker return 0; 2958ae42c70aSBryan Schumaker out_overflow: 2959ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 2960ae42c70aSBryan Schumaker return -EIO; 2961ae42c70aSBryan Schumaker } 2962ae42c70aSBryan Schumaker 29631da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29641da177e4SLinus Torvalds { 29658687b63aSAl Viro __be32 *p; 29661da177e4SLinus Torvalds 29671da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 29681da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 29691da177e4SLinus Torvalds return -EIO; 29701da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2971c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2972c0eae66eSBenny Halevy if (unlikely(!p)) 2973c0eae66eSBenny Halevy goto out_overflow; 2974cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 29761da177e4SLinus Torvalds } 29773110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 29781da177e4SLinus Torvalds return 0; 2979c0eae66eSBenny Halevy out_overflow: 2980c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2981c0eae66eSBenny Halevy return -EIO; 29821da177e4SLinus Torvalds } 29831da177e4SLinus Torvalds 29841da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 29851da177e4SLinus Torvalds { 29868687b63aSAl Viro __be32 *p; 2987409924e4STrond Myklebust int ret = 0; 29881da177e4SLinus Torvalds 29891da177e4SLinus Torvalds *fileid = 0; 29901da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 29911da177e4SLinus Torvalds return -EIO; 29921da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2993c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2994c0eae66eSBenny Halevy if (unlikely(!p)) 2995c0eae66eSBenny Halevy goto out_overflow; 2996cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 29971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2998409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 29991da177e4SLinus Torvalds } 30003110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3001409924e4STrond Myklebust return ret; 3002c0eae66eSBenny Halevy out_overflow: 3003c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3004c0eae66eSBenny Halevy return -EIO; 30051da177e4SLinus Torvalds } 30061da177e4SLinus Torvalds 300799baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 300899baf625SManoj Naik { 30098687b63aSAl Viro __be32 *p; 3010409924e4STrond Myklebust int ret = 0; 301199baf625SManoj Naik 301299baf625SManoj Naik *fileid = 0; 301399baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 301499baf625SManoj Naik return -EIO; 301599baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3016c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3017c0eae66eSBenny Halevy if (unlikely(!p)) 3018c0eae66eSBenny Halevy goto out_overflow; 3019cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 302099baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 3021409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 302299baf625SManoj Naik } 30233110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3024409924e4STrond Myklebust return ret; 3025c0eae66eSBenny Halevy out_overflow: 3026c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3027c0eae66eSBenny Halevy return -EIO; 302899baf625SManoj Naik } 302999baf625SManoj Naik 30301da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30311da177e4SLinus Torvalds { 30328687b63aSAl Viro __be32 *p; 30331da177e4SLinus Torvalds int status = 0; 30341da177e4SLinus Torvalds 30351da177e4SLinus Torvalds *res = 0; 30361da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 30371da177e4SLinus Torvalds return -EIO; 30381da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3039c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3040c0eae66eSBenny Halevy if (unlikely(!p)) 3041c0eae66eSBenny Halevy goto out_overflow; 3042cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30431da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 30441da177e4SLinus Torvalds } 30453110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 30461da177e4SLinus Torvalds return status; 3047c0eae66eSBenny Halevy out_overflow: 3048c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3049c0eae66eSBenny Halevy return -EIO; 30501da177e4SLinus Torvalds } 30511da177e4SLinus Torvalds 30521da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30531da177e4SLinus Torvalds { 30548687b63aSAl Viro __be32 *p; 30551da177e4SLinus Torvalds int status = 0; 30561da177e4SLinus Torvalds 30571da177e4SLinus Torvalds *res = 0; 30581da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 30591da177e4SLinus Torvalds return -EIO; 30601da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3061c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3062c0eae66eSBenny Halevy if (unlikely(!p)) 3063c0eae66eSBenny Halevy goto out_overflow; 3064cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30651da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 30661da177e4SLinus Torvalds } 30673110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 30681da177e4SLinus Torvalds return status; 3069c0eae66eSBenny Halevy out_overflow: 3070c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3071c0eae66eSBenny Halevy return -EIO; 30721da177e4SLinus Torvalds } 30731da177e4SLinus Torvalds 30741da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30751da177e4SLinus Torvalds { 30768687b63aSAl Viro __be32 *p; 30771da177e4SLinus Torvalds int status = 0; 30781da177e4SLinus Torvalds 30791da177e4SLinus Torvalds *res = 0; 30801da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 30811da177e4SLinus Torvalds return -EIO; 30821da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3083c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3084c0eae66eSBenny Halevy if (unlikely(!p)) 3085c0eae66eSBenny Halevy goto out_overflow; 3086cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30871da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 30881da177e4SLinus Torvalds } 30893110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 30901da177e4SLinus Torvalds return status; 3091c0eae66eSBenny Halevy out_overflow: 3092c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3093c0eae66eSBenny Halevy return -EIO; 30941da177e4SLinus Torvalds } 30951da177e4SLinus Torvalds 30967aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 30977aaa0b3bSManoj Naik { 3098464ad6b1SChuck Lever u32 n; 30998687b63aSAl Viro __be32 *p; 31007aaa0b3bSManoj Naik int status = 0; 31017aaa0b3bSManoj Naik 3102c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3103c0eae66eSBenny Halevy if (unlikely(!p)) 3104c0eae66eSBenny Halevy goto out_overflow; 3105cccddf4fSBenny Halevy n = be32_to_cpup(p); 310633a43f28SAndy Adamson if (n == 0) 310733a43f28SAndy Adamson goto root_path; 31087aaa0b3bSManoj Naik dprintk("path "); 31097aaa0b3bSManoj Naik path->ncomponents = 0; 31107aaa0b3bSManoj Naik while (path->ncomponents < n) { 31117aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 31127aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 31137aaa0b3bSManoj Naik if (unlikely(status != 0)) 31147aaa0b3bSManoj Naik goto out_eio; 31157aaa0b3bSManoj Naik if (path->ncomponents != n) 31167aaa0b3bSManoj Naik dprintk("/"); 31177aaa0b3bSManoj Naik dprintk("%s", component->data); 31187aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 31197aaa0b3bSManoj Naik path->ncomponents++; 31207aaa0b3bSManoj Naik else { 31217aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 31227aaa0b3bSManoj Naik goto out_eio; 31237aaa0b3bSManoj Naik } 31247aaa0b3bSManoj Naik } 31257aaa0b3bSManoj Naik out: 31267aaa0b3bSManoj Naik dprintk("\n"); 31277aaa0b3bSManoj Naik return status; 312833a43f28SAndy Adamson root_path: 312933a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 313033a43f28SAndy Adamson path->ncomponents = 1; 313133a43f28SAndy Adamson path->components[0].len=0; 313233a43f28SAndy Adamson path->components[0].data=NULL; 313333a43f28SAndy Adamson dprintk("path /\n"); 313433a43f28SAndy Adamson goto out; 31357aaa0b3bSManoj Naik out_eio: 31367aaa0b3bSManoj Naik dprintk(" status %d", status); 31377aaa0b3bSManoj Naik status = -EIO; 31387aaa0b3bSManoj Naik goto out; 3139c0eae66eSBenny Halevy out_overflow: 3140c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3141c0eae66eSBenny Halevy return -EIO; 31427aaa0b3bSManoj Naik } 31437aaa0b3bSManoj Naik 31447aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3145683b57b4STrond Myklebust { 3146683b57b4STrond Myklebust int n; 31478687b63aSAl Viro __be32 *p; 3148683b57b4STrond Myklebust int status = -EIO; 3149683b57b4STrond Myklebust 3150683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3151683b57b4STrond Myklebust goto out; 3152683b57b4STrond Myklebust status = 0; 3153683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3154683b57b4STrond Myklebust goto out; 31553110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 31567aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3157683b57b4STrond Myklebust if (unlikely(status != 0)) 3158683b57b4STrond Myklebust goto out; 3159c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3160c0eae66eSBenny Halevy if (unlikely(!p)) 3161c0eae66eSBenny Halevy goto out_overflow; 3162cccddf4fSBenny Halevy n = be32_to_cpup(p); 3163683b57b4STrond Myklebust if (n <= 0) 3164683b57b4STrond Myklebust goto out_eio; 3165683b57b4STrond Myklebust res->nlocations = 0; 3166683b57b4STrond Myklebust while (res->nlocations < n) { 3167464ad6b1SChuck Lever u32 m; 31687aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3169683b57b4STrond Myklebust 3170c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3171c0eae66eSBenny Halevy if (unlikely(!p)) 3172c0eae66eSBenny Halevy goto out_overflow; 3173cccddf4fSBenny Halevy m = be32_to_cpup(p); 31747aaa0b3bSManoj Naik 31757aaa0b3bSManoj Naik loc->nservers = 0; 31763110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 31777aaa0b3bSManoj Naik while (loc->nservers < m) { 31787aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 31797aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3180683b57b4STrond Myklebust if (unlikely(status != 0)) 3181683b57b4STrond Myklebust goto out_eio; 31827aaa0b3bSManoj Naik dprintk("%s ", server->data); 31837aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 31847aaa0b3bSManoj Naik loc->nservers++; 31857aaa0b3bSManoj Naik else { 3186464ad6b1SChuck Lever unsigned int i; 3187464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3188464ad6b1SChuck Lever "returned for location %u\n", 31893110ff80SHarvey Harrison __func__, 3190464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3191464ad6b1SChuck Lever m, res->nlocations); 31927aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 31932e42c3e2STrond Myklebust unsigned int len; 31947aaa0b3bSManoj Naik char *data; 31957aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3196683b57b4STrond Myklebust if (unlikely(status != 0)) 3197683b57b4STrond Myklebust goto out_eio; 31987aaa0b3bSManoj Naik } 31997aaa0b3bSManoj Naik } 32007aaa0b3bSManoj Naik } 32017aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 32027aaa0b3bSManoj Naik if (unlikely(status != 0)) 32037aaa0b3bSManoj Naik goto out_eio; 32047aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3205683b57b4STrond Myklebust res->nlocations++; 3206683b57b4STrond Myklebust } 3207409924e4STrond Myklebust if (res->nlocations != 0) 3208409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3209683b57b4STrond Myklebust out: 32103110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3211683b57b4STrond Myklebust return status; 3212c0eae66eSBenny Halevy out_overflow: 3213c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3214683b57b4STrond Myklebust out_eio: 3215683b57b4STrond Myklebust status = -EIO; 3216683b57b4STrond Myklebust goto out; 3217683b57b4STrond Myklebust } 3218683b57b4STrond Myklebust 32191da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 32201da177e4SLinus Torvalds { 32218687b63aSAl Viro __be32 *p; 32221da177e4SLinus Torvalds int status = 0; 32231da177e4SLinus Torvalds 32241da177e4SLinus Torvalds *res = 0; 32251da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 32261da177e4SLinus Torvalds return -EIO; 32271da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3228c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3229c0eae66eSBenny Halevy if (unlikely(!p)) 3230c0eae66eSBenny Halevy goto out_overflow; 3231cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 32321da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 32331da177e4SLinus Torvalds } 32343110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 32351da177e4SLinus Torvalds return status; 3236c0eae66eSBenny Halevy out_overflow: 3237c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3238c0eae66eSBenny Halevy return -EIO; 32391da177e4SLinus Torvalds } 32401da177e4SLinus Torvalds 32411da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 32421da177e4SLinus Torvalds { 32438687b63aSAl Viro __be32 *p; 32441da177e4SLinus Torvalds int status = 0; 32451da177e4SLinus Torvalds 32461da177e4SLinus Torvalds *maxlink = 1; 32471da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 32481da177e4SLinus Torvalds return -EIO; 32491da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3250c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3251c0eae66eSBenny Halevy if (unlikely(!p)) 3252c0eae66eSBenny Halevy goto out_overflow; 3253cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 32541da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 32551da177e4SLinus Torvalds } 32563110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 32571da177e4SLinus Torvalds return status; 3258c0eae66eSBenny Halevy out_overflow: 3259c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3260c0eae66eSBenny Halevy return -EIO; 32611da177e4SLinus Torvalds } 32621da177e4SLinus Torvalds 32631da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 32641da177e4SLinus Torvalds { 32658687b63aSAl Viro __be32 *p; 32661da177e4SLinus Torvalds int status = 0; 32671da177e4SLinus Torvalds 32681da177e4SLinus Torvalds *maxname = 1024; 32691da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 32701da177e4SLinus Torvalds return -EIO; 32711da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3272c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3273c0eae66eSBenny Halevy if (unlikely(!p)) 3274c0eae66eSBenny Halevy goto out_overflow; 3275cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 32761da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 32771da177e4SLinus Torvalds } 32783110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 32791da177e4SLinus Torvalds return status; 3280c0eae66eSBenny Halevy out_overflow: 3281c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3282c0eae66eSBenny Halevy return -EIO; 32831da177e4SLinus Torvalds } 32841da177e4SLinus Torvalds 32851da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32861da177e4SLinus Torvalds { 32878687b63aSAl Viro __be32 *p; 32881da177e4SLinus Torvalds int status = 0; 32891da177e4SLinus Torvalds 32901da177e4SLinus Torvalds *res = 1024; 32911da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 32921da177e4SLinus Torvalds return -EIO; 32931da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 32941da177e4SLinus Torvalds uint64_t maxread; 3295c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3296c0eae66eSBenny Halevy if (unlikely(!p)) 3297c0eae66eSBenny Halevy goto out_overflow; 3298cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 32991da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 33001da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 33011da177e4SLinus Torvalds *res = (uint32_t)maxread; 33021da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 33031da177e4SLinus Torvalds } 33043110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 33051da177e4SLinus Torvalds return status; 3306c0eae66eSBenny Halevy out_overflow: 3307c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3308c0eae66eSBenny Halevy return -EIO; 33091da177e4SLinus Torvalds } 33101da177e4SLinus Torvalds 33111da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33121da177e4SLinus Torvalds { 33138687b63aSAl Viro __be32 *p; 33141da177e4SLinus Torvalds int status = 0; 33151da177e4SLinus Torvalds 33161da177e4SLinus Torvalds *res = 1024; 33171da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 33181da177e4SLinus Torvalds return -EIO; 33191da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 33201da177e4SLinus Torvalds uint64_t maxwrite; 3321c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3322c0eae66eSBenny Halevy if (unlikely(!p)) 3323c0eae66eSBenny Halevy goto out_overflow; 3324cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 33251da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 33261da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 33271da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 33281da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 33291da177e4SLinus Torvalds } 33303110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 33311da177e4SLinus Torvalds return status; 3332c0eae66eSBenny Halevy out_overflow: 3333c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3334c0eae66eSBenny Halevy return -EIO; 33351da177e4SLinus Torvalds } 33361da177e4SLinus Torvalds 3337bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 33381da177e4SLinus Torvalds { 3339bca79478STrond Myklebust uint32_t tmp; 33408687b63aSAl Viro __be32 *p; 3341409924e4STrond Myklebust int ret = 0; 33421da177e4SLinus Torvalds 33431da177e4SLinus Torvalds *mode = 0; 33441da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 33451da177e4SLinus Torvalds return -EIO; 33461da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3347c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3348c0eae66eSBenny Halevy if (unlikely(!p)) 3349c0eae66eSBenny Halevy goto out_overflow; 3350cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3351bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 33521da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3353409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 33541da177e4SLinus Torvalds } 33553110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3356409924e4STrond Myklebust return ret; 3357c0eae66eSBenny Halevy out_overflow: 3358c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3359c0eae66eSBenny Halevy return -EIO; 33601da177e4SLinus Torvalds } 33611da177e4SLinus Torvalds 33621da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 33631da177e4SLinus Torvalds { 33648687b63aSAl Viro __be32 *p; 3365409924e4STrond Myklebust int ret = 0; 33661da177e4SLinus Torvalds 33671da177e4SLinus Torvalds *nlink = 1; 33681da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 33691da177e4SLinus Torvalds return -EIO; 33701da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3371c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3372c0eae66eSBenny Halevy if (unlikely(!p)) 3373c0eae66eSBenny Halevy goto out_overflow; 3374cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 33751da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3376409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 33771da177e4SLinus Torvalds } 33783110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3379409924e4STrond Myklebust return ret; 3380c0eae66eSBenny Halevy out_overflow: 3381c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3382c0eae66eSBenny Halevy return -EIO; 33831da177e4SLinus Torvalds } 33841da177e4SLinus Torvalds 338580e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 338680e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *uid, int may_sleep) 33871da177e4SLinus Torvalds { 33888687b63aSAl Viro uint32_t len; 33898687b63aSAl Viro __be32 *p; 3390409924e4STrond Myklebust int ret = 0; 33911da177e4SLinus Torvalds 33921da177e4SLinus Torvalds *uid = -2; 33931da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 33941da177e4SLinus Torvalds return -EIO; 33951da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3396c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3397c0eae66eSBenny Halevy if (unlikely(!p)) 3398c0eae66eSBenny Halevy goto out_overflow; 3399cccddf4fSBenny Halevy len = be32_to_cpup(p); 3400c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3401c0eae66eSBenny Halevy if (unlikely(!p)) 3402c0eae66eSBenny Halevy goto out_overflow; 340380e52aceSTrond Myklebust if (!may_sleep) { 340480e52aceSTrond Myklebust /* do nothing */ 340580e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3406409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3407409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3408409924e4STrond Myklebust else 34091da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 34103110ff80SHarvey Harrison __func__); 34111da177e4SLinus Torvalds } else 3412fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 34133110ff80SHarvey Harrison __func__, len); 34141da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 34151da177e4SLinus Torvalds } 34163110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3417409924e4STrond Myklebust return ret; 3418c0eae66eSBenny Halevy out_overflow: 3419c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3420c0eae66eSBenny Halevy return -EIO; 34211da177e4SLinus Torvalds } 34221da177e4SLinus Torvalds 342380e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 342480e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *gid, int may_sleep) 34251da177e4SLinus Torvalds { 34268687b63aSAl Viro uint32_t len; 34278687b63aSAl Viro __be32 *p; 3428409924e4STrond Myklebust int ret = 0; 34291da177e4SLinus Torvalds 34301da177e4SLinus Torvalds *gid = -2; 34311da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 34321da177e4SLinus Torvalds return -EIO; 34331da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3434c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3435c0eae66eSBenny Halevy if (unlikely(!p)) 3436c0eae66eSBenny Halevy goto out_overflow; 3437cccddf4fSBenny Halevy len = be32_to_cpup(p); 3438c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3439c0eae66eSBenny Halevy if (unlikely(!p)) 3440c0eae66eSBenny Halevy goto out_overflow; 344180e52aceSTrond Myklebust if (!may_sleep) { 344280e52aceSTrond Myklebust /* do nothing */ 344380e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3444409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3445409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3446409924e4STrond Myklebust else 34471da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 34483110ff80SHarvey Harrison __func__); 34491da177e4SLinus Torvalds } else 3450fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 34513110ff80SHarvey Harrison __func__, len); 34521da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 34531da177e4SLinus Torvalds } 34543110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3455409924e4STrond Myklebust return ret; 3456c0eae66eSBenny Halevy out_overflow: 3457c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3458c0eae66eSBenny Halevy return -EIO; 34591da177e4SLinus Torvalds } 34601da177e4SLinus Torvalds 34611da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 34621da177e4SLinus Torvalds { 34638687b63aSAl Viro uint32_t major = 0, minor = 0; 34648687b63aSAl Viro __be32 *p; 3465409924e4STrond Myklebust int ret = 0; 34661da177e4SLinus Torvalds 34671da177e4SLinus Torvalds *rdev = MKDEV(0,0); 34681da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 34691da177e4SLinus Torvalds return -EIO; 34701da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 34711da177e4SLinus Torvalds dev_t tmp; 34721da177e4SLinus Torvalds 3473c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3474c0eae66eSBenny Halevy if (unlikely(!p)) 3475c0eae66eSBenny Halevy goto out_overflow; 34766f723f77SBenny Halevy major = be32_to_cpup(p++); 3477cccddf4fSBenny Halevy minor = be32_to_cpup(p); 34781da177e4SLinus Torvalds tmp = MKDEV(major, minor); 34791da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 34801da177e4SLinus Torvalds *rdev = tmp; 34811da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3482409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 34831da177e4SLinus Torvalds } 34843110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3485409924e4STrond Myklebust return ret; 3486c0eae66eSBenny Halevy out_overflow: 3487c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3488c0eae66eSBenny Halevy return -EIO; 34891da177e4SLinus Torvalds } 34901da177e4SLinus Torvalds 34911da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34921da177e4SLinus Torvalds { 34938687b63aSAl Viro __be32 *p; 34941da177e4SLinus Torvalds int status = 0; 34951da177e4SLinus Torvalds 34961da177e4SLinus Torvalds *res = 0; 34971da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 34981da177e4SLinus Torvalds return -EIO; 34991da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3500c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3501c0eae66eSBenny Halevy if (unlikely(!p)) 3502c0eae66eSBenny Halevy goto out_overflow; 3503cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35041da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 35051da177e4SLinus Torvalds } 35063110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 35071da177e4SLinus Torvalds return status; 3508c0eae66eSBenny Halevy out_overflow: 3509c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3510c0eae66eSBenny Halevy return -EIO; 35111da177e4SLinus Torvalds } 35121da177e4SLinus Torvalds 35131da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35141da177e4SLinus Torvalds { 35158687b63aSAl Viro __be32 *p; 35161da177e4SLinus Torvalds int status = 0; 35171da177e4SLinus Torvalds 35181da177e4SLinus Torvalds *res = 0; 35191da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 35201da177e4SLinus Torvalds return -EIO; 35211da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3522c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3523c0eae66eSBenny Halevy if (unlikely(!p)) 3524c0eae66eSBenny Halevy goto out_overflow; 3525cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35261da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 35271da177e4SLinus Torvalds } 35283110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 35291da177e4SLinus Torvalds return status; 3530c0eae66eSBenny Halevy out_overflow: 3531c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3532c0eae66eSBenny Halevy return -EIO; 35331da177e4SLinus Torvalds } 35341da177e4SLinus Torvalds 35351da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35361da177e4SLinus Torvalds { 35378687b63aSAl Viro __be32 *p; 35381da177e4SLinus Torvalds int status = 0; 35391da177e4SLinus Torvalds 35401da177e4SLinus Torvalds *res = 0; 35411da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 35421da177e4SLinus Torvalds return -EIO; 35431da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3544c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3545c0eae66eSBenny Halevy if (unlikely(!p)) 3546c0eae66eSBenny Halevy goto out_overflow; 3547cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35481da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 35491da177e4SLinus Torvalds } 35503110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 35511da177e4SLinus Torvalds return status; 3552c0eae66eSBenny Halevy out_overflow: 3553c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3554c0eae66eSBenny Halevy return -EIO; 35551da177e4SLinus Torvalds } 35561da177e4SLinus Torvalds 35571da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 35581da177e4SLinus Torvalds { 35598687b63aSAl Viro __be32 *p; 3560409924e4STrond Myklebust int ret = 0; 35611da177e4SLinus Torvalds 35621da177e4SLinus Torvalds *used = 0; 35631da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 35641da177e4SLinus Torvalds return -EIO; 35651da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3566c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3567c0eae66eSBenny Halevy if (unlikely(!p)) 3568c0eae66eSBenny Halevy goto out_overflow; 3569cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 35701da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3571409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 35721da177e4SLinus Torvalds } 35733110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 35741da177e4SLinus Torvalds (unsigned long long)*used); 3575409924e4STrond Myklebust return ret; 3576c0eae66eSBenny Halevy out_overflow: 3577c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3578c0eae66eSBenny Halevy return -EIO; 35791da177e4SLinus Torvalds } 35801da177e4SLinus Torvalds 35811da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 35821da177e4SLinus Torvalds { 35838687b63aSAl Viro __be32 *p; 35841da177e4SLinus Torvalds uint64_t sec; 35851da177e4SLinus Torvalds uint32_t nsec; 35861da177e4SLinus Torvalds 3587c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3588c0eae66eSBenny Halevy if (unlikely(!p)) 3589c0eae66eSBenny Halevy goto out_overflow; 35903ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3591cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 35921da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 35931da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 35941da177e4SLinus Torvalds return 0; 3595c0eae66eSBenny Halevy out_overflow: 3596c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3597c0eae66eSBenny Halevy return -EIO; 35981da177e4SLinus Torvalds } 35991da177e4SLinus Torvalds 36001da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36011da177e4SLinus Torvalds { 36021da177e4SLinus Torvalds int status = 0; 36031da177e4SLinus Torvalds 36041da177e4SLinus Torvalds time->tv_sec = 0; 36051da177e4SLinus Torvalds time->tv_nsec = 0; 36061da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 36071da177e4SLinus Torvalds return -EIO; 36081da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 36091da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3610409924e4STrond Myklebust if (status == 0) 3611409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 36121da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 36131da177e4SLinus Torvalds } 36143110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 36151da177e4SLinus Torvalds return status; 36161da177e4SLinus Torvalds } 36171da177e4SLinus Torvalds 36181da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36191da177e4SLinus Torvalds { 36201da177e4SLinus Torvalds int status = 0; 36211da177e4SLinus Torvalds 36221da177e4SLinus Torvalds time->tv_sec = 0; 36231da177e4SLinus Torvalds time->tv_nsec = 0; 36241da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 36251da177e4SLinus Torvalds return -EIO; 36261da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 36271da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3628409924e4STrond Myklebust if (status == 0) 3629409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 36301da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 36311da177e4SLinus Torvalds } 36323110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 36331da177e4SLinus Torvalds return status; 36341da177e4SLinus Torvalds } 36351da177e4SLinus Torvalds 363655b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 363755b6e774SRicardo Labiaga struct timespec *time) 363855b6e774SRicardo Labiaga { 363955b6e774SRicardo Labiaga int status = 0; 364055b6e774SRicardo Labiaga 364155b6e774SRicardo Labiaga time->tv_sec = 0; 364255b6e774SRicardo Labiaga time->tv_nsec = 0; 364355b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 364455b6e774SRicardo Labiaga return -EIO; 364555b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 364655b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 364755b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 364855b6e774SRicardo Labiaga } 364955b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 365055b6e774SRicardo Labiaga (long)time->tv_nsec); 365155b6e774SRicardo Labiaga return status; 365255b6e774SRicardo Labiaga } 365355b6e774SRicardo Labiaga 36541da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36551da177e4SLinus Torvalds { 36561da177e4SLinus Torvalds int status = 0; 36571da177e4SLinus Torvalds 36581da177e4SLinus Torvalds time->tv_sec = 0; 36591da177e4SLinus Torvalds time->tv_nsec = 0; 36601da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 36611da177e4SLinus Torvalds return -EIO; 36621da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 36631da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3664409924e4STrond Myklebust if (status == 0) 3665409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 36661da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 36671da177e4SLinus Torvalds } 36683110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 36691da177e4SLinus Torvalds return status; 36701da177e4SLinus Torvalds } 36711da177e4SLinus Torvalds 36728687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 36731da177e4SLinus Torvalds { 36741da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 36751da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 36761da177e4SLinus Torvalds 36771da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3678fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3679fe82a183SChuck Lever "%u %c %u\n", 36803110ff80SHarvey Harrison __func__, 36811da177e4SLinus Torvalds attrwords << 2, 36821da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 36831da177e4SLinus Torvalds nwords << 2); 36841da177e4SLinus Torvalds return -EIO; 36851da177e4SLinus Torvalds } 36861da177e4SLinus Torvalds return 0; 36871da177e4SLinus Torvalds } 36881da177e4SLinus Torvalds 36891da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36901da177e4SLinus Torvalds { 36918687b63aSAl Viro __be32 *p; 36921da177e4SLinus Torvalds 3693c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3694c0eae66eSBenny Halevy if (unlikely(!p)) 3695c0eae66eSBenny Halevy goto out_overflow; 36966f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 36973ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3698cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 36991da177e4SLinus Torvalds return 0; 3700c0eae66eSBenny Halevy out_overflow: 3701c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3702c0eae66eSBenny Halevy return -EIO; 37031da177e4SLinus Torvalds } 37041da177e4SLinus Torvalds 37051da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 37061da177e4SLinus Torvalds { 37078687b63aSAl Viro __be32 *p; 37081da177e4SLinus Torvalds uint32_t supp, acc; 37091da177e4SLinus Torvalds int status; 37101da177e4SLinus Torvalds 37111da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 37121da177e4SLinus Torvalds if (status) 37131da177e4SLinus Torvalds return status; 3714c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3715c0eae66eSBenny Halevy if (unlikely(!p)) 3716c0eae66eSBenny Halevy goto out_overflow; 37176f723f77SBenny Halevy supp = be32_to_cpup(p++); 3718cccddf4fSBenny Halevy acc = be32_to_cpup(p); 37191da177e4SLinus Torvalds access->supported = supp; 37201da177e4SLinus Torvalds access->access = acc; 37211da177e4SLinus Torvalds return 0; 3722c0eae66eSBenny Halevy out_overflow: 3723c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3724c0eae66eSBenny Halevy return -EIO; 37251da177e4SLinus Torvalds } 37261da177e4SLinus Torvalds 372707d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 37281da177e4SLinus Torvalds { 37298687b63aSAl Viro __be32 *p; 373007d30434SBenny Halevy 373107d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 373207d30434SBenny Halevy if (likely(p)) { 373307d30434SBenny Halevy memcpy(buf, p, len); 373407d30434SBenny Halevy return 0; 373507d30434SBenny Halevy } 373607d30434SBenny Halevy print_overflow_msg(__func__, xdr); 373707d30434SBenny Halevy return -EIO; 373807d30434SBenny Halevy } 373907d30434SBenny Halevy 374007d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 374107d30434SBenny Halevy { 374207d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 37431da177e4SLinus Torvalds } 37441da177e4SLinus Torvalds 37451da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 37461da177e4SLinus Torvalds { 37471da177e4SLinus Torvalds int status; 37481da177e4SLinus Torvalds 37491da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3750c1d51931STrond Myklebust if (status != -EIO) 3751c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 375207d30434SBenny Halevy if (!status) 375307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 37541da177e4SLinus Torvalds return status; 37551da177e4SLinus Torvalds } 37561da177e4SLinus Torvalds 3757db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3758db942bbdSBenny Halevy { 3759db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 37601da177e4SLinus Torvalds } 37611da177e4SLinus Torvalds 37621da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 37631da177e4SLinus Torvalds { 37641da177e4SLinus Torvalds int status; 37651da177e4SLinus Torvalds 37661da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3767db942bbdSBenny Halevy if (!status) 3768db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 37691da177e4SLinus Torvalds return status; 37701da177e4SLinus Torvalds } 37711da177e4SLinus Torvalds 37721da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 37731da177e4SLinus Torvalds { 37748687b63aSAl Viro __be32 *p; 37751da177e4SLinus Torvalds uint32_t bmlen; 37761da177e4SLinus Torvalds int status; 37771da177e4SLinus Torvalds 37781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 37791da177e4SLinus Torvalds if (status) 37801da177e4SLinus Torvalds return status; 37811da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 37821da177e4SLinus Torvalds return status; 3783c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3784c0eae66eSBenny Halevy if (unlikely(!p)) 3785c0eae66eSBenny Halevy goto out_overflow; 3786cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3787c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3788c0eae66eSBenny Halevy if (likely(p)) 37891da177e4SLinus Torvalds return 0; 3790c0eae66eSBenny Halevy out_overflow: 3791c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3792c0eae66eSBenny Halevy return -EIO; 37931da177e4SLinus Torvalds } 37941da177e4SLinus Torvalds 37951da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 37961da177e4SLinus Torvalds { 37978687b63aSAl Viro __be32 *savep; 37986c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 37991da177e4SLinus Torvalds int status; 38001da177e4SLinus Torvalds 38011da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38021da177e4SLinus Torvalds goto xdr_error; 38031da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38041da177e4SLinus Torvalds goto xdr_error; 38051da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38061da177e4SLinus Torvalds goto xdr_error; 38071da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 38081da177e4SLinus Torvalds goto xdr_error; 38091da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 38101da177e4SLinus Torvalds goto xdr_error; 38111da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 38121da177e4SLinus Torvalds goto xdr_error; 38131da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 38141da177e4SLinus Torvalds goto xdr_error; 38151da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38161da177e4SLinus Torvalds xdr_error: 38173110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38181da177e4SLinus Torvalds return status; 38191da177e4SLinus Torvalds } 38201da177e4SLinus Torvalds 38211da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 38221da177e4SLinus Torvalds { 38238687b63aSAl Viro __be32 *savep; 38246c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 38251da177e4SLinus Torvalds int status; 38261da177e4SLinus Torvalds 38271da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38281da177e4SLinus Torvalds goto xdr_error; 38291da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38301da177e4SLinus Torvalds goto xdr_error; 38311da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38321da177e4SLinus Torvalds goto xdr_error; 38331da177e4SLinus Torvalds 38341da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 38351da177e4SLinus Torvalds goto xdr_error; 38361da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 38371da177e4SLinus Torvalds goto xdr_error; 38381da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 38391da177e4SLinus Torvalds goto xdr_error; 38401da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 38411da177e4SLinus Torvalds goto xdr_error; 38421da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 38431da177e4SLinus Torvalds goto xdr_error; 38441da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 38451da177e4SLinus Torvalds goto xdr_error; 38461da177e4SLinus Torvalds 38471da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38481da177e4SLinus Torvalds xdr_error: 38493110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38501da177e4SLinus Torvalds return status; 38511da177e4SLinus Torvalds } 38521da177e4SLinus Torvalds 38531da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 38541da177e4SLinus Torvalds { 38558687b63aSAl Viro __be32 *savep; 38566c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 38571da177e4SLinus Torvalds int status; 38581da177e4SLinus Torvalds 38591da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38601da177e4SLinus Torvalds goto xdr_error; 38611da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38621da177e4SLinus Torvalds goto xdr_error; 38631da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38641da177e4SLinus Torvalds goto xdr_error; 38651da177e4SLinus Torvalds 38661da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 38671da177e4SLinus Torvalds goto xdr_error; 38681da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 38691da177e4SLinus Torvalds goto xdr_error; 38701da177e4SLinus Torvalds 38711da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38721da177e4SLinus Torvalds xdr_error: 38733110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38741da177e4SLinus Torvalds return status; 38751da177e4SLinus Torvalds } 38761da177e4SLinus Torvalds 3877ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 3878ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 387980e52aceSTrond Myklebust const struct nfs_server *server, int may_sleep) 38801da177e4SLinus Torvalds { 3881bca79478STrond Myklebust int status; 3882bca79478STrond Myklebust umode_t fmode = 0; 388399baf625SManoj Naik uint64_t fileid; 3884ae42c70aSBryan Schumaker uint32_t type; 38851da177e4SLinus Torvalds 3886f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3887f26c7a78STrond Myklebust if (status < 0) 38881da177e4SLinus Torvalds goto xdr_error; 3889409924e4STrond Myklebust fattr->mode = 0; 3890409924e4STrond Myklebust if (status != 0) { 3891409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3892409924e4STrond Myklebust fattr->valid |= status; 3893409924e4STrond Myklebust } 38941da177e4SLinus Torvalds 3895f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3896f26c7a78STrond Myklebust if (status < 0) 38971da177e4SLinus Torvalds goto xdr_error; 3898409924e4STrond Myklebust fattr->valid |= status; 3899f26c7a78STrond Myklebust 3900f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3901f26c7a78STrond Myklebust if (status < 0) 39021da177e4SLinus Torvalds goto xdr_error; 3903409924e4STrond Myklebust fattr->valid |= status; 3904f26c7a78STrond Myklebust 3905f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3906f26c7a78STrond Myklebust if (status < 0) 39071da177e4SLinus Torvalds goto xdr_error; 3908409924e4STrond Myklebust fattr->valid |= status; 3909f26c7a78STrond Myklebust 3910ae42c70aSBryan Schumaker status = decode_attr_error(xdr, bitmap); 3911ae42c70aSBryan Schumaker if (status < 0) 3912ae42c70aSBryan Schumaker goto xdr_error; 3913ae42c70aSBryan Schumaker 3914ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 3915ae42c70aSBryan Schumaker if (status < 0) 3916ae42c70aSBryan Schumaker goto xdr_error; 3917ae42c70aSBryan Schumaker 3918f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3919f26c7a78STrond Myklebust if (status < 0) 39201da177e4SLinus Torvalds goto xdr_error; 3921409924e4STrond Myklebust fattr->valid |= status; 3922f26c7a78STrond Myklebust 3923f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 39247aaa0b3bSManoj Naik struct nfs4_fs_locations, 3925f26c7a78STrond Myklebust fattr)); 3926f26c7a78STrond Myklebust if (status < 0) 3927683b57b4STrond Myklebust goto xdr_error; 3928409924e4STrond Myklebust fattr->valid |= status; 3929f26c7a78STrond Myklebust 3930f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3931f26c7a78STrond Myklebust if (status < 0) 39321da177e4SLinus Torvalds goto xdr_error; 3933409924e4STrond Myklebust if (status != 0) { 39341da177e4SLinus Torvalds fattr->mode |= fmode; 3935409924e4STrond Myklebust fattr->valid |= status; 3936409924e4STrond Myklebust } 3937f26c7a78STrond Myklebust 3938f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3939f26c7a78STrond Myklebust if (status < 0) 39401da177e4SLinus Torvalds goto xdr_error; 3941409924e4STrond Myklebust fattr->valid |= status; 3942f26c7a78STrond Myklebust 394380e52aceSTrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, 394480e52aceSTrond Myklebust &fattr->uid, may_sleep); 3945f26c7a78STrond Myklebust if (status < 0) 39461da177e4SLinus Torvalds goto xdr_error; 3947409924e4STrond Myklebust fattr->valid |= status; 3948f26c7a78STrond Myklebust 394980e52aceSTrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, 395080e52aceSTrond Myklebust &fattr->gid, may_sleep); 3951f26c7a78STrond Myklebust if (status < 0) 39521da177e4SLinus Torvalds goto xdr_error; 3953409924e4STrond Myklebust fattr->valid |= status; 3954f26c7a78STrond Myklebust 3955f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3956f26c7a78STrond Myklebust if (status < 0) 39571da177e4SLinus Torvalds goto xdr_error; 3958409924e4STrond Myklebust fattr->valid |= status; 3959f26c7a78STrond Myklebust 3960f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3961f26c7a78STrond Myklebust if (status < 0) 39621da177e4SLinus Torvalds goto xdr_error; 3963409924e4STrond Myklebust fattr->valid |= status; 3964f26c7a78STrond Myklebust 3965f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3966f26c7a78STrond Myklebust if (status < 0) 39671da177e4SLinus Torvalds goto xdr_error; 3968409924e4STrond Myklebust fattr->valid |= status; 3969f26c7a78STrond Myklebust 3970f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3971f26c7a78STrond Myklebust if (status < 0) 39721da177e4SLinus Torvalds goto xdr_error; 3973409924e4STrond Myklebust fattr->valid |= status; 3974f26c7a78STrond Myklebust 3975f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3976f26c7a78STrond Myklebust if (status < 0) 39771da177e4SLinus Torvalds goto xdr_error; 3978409924e4STrond Myklebust fattr->valid |= status; 3979f26c7a78STrond Myklebust 3980f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3981f26c7a78STrond Myklebust if (status < 0) 398299baf625SManoj Naik goto xdr_error; 39833201f3ddSTrond Myklebust if (status != 0 && !(fattr->valid & status)) { 398499baf625SManoj Naik fattr->fileid = fileid; 3985409924e4STrond Myklebust fattr->valid |= status; 3986409924e4STrond Myklebust } 3987f26c7a78STrond Myklebust 3988ae42c70aSBryan Schumaker xdr_error: 3989ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 3990ae42c70aSBryan Schumaker return status; 3991ae42c70aSBryan Schumaker } 3992ae42c70aSBryan Schumaker 3993ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 3994ae42c70aSBryan Schumaker struct nfs_fh *fh, const struct nfs_server *server, int may_sleep) 3995ae42c70aSBryan Schumaker { 3996ae42c70aSBryan Schumaker __be32 *savep; 3997ae42c70aSBryan Schumaker uint32_t attrlen, 3998ae42c70aSBryan Schumaker bitmap[2] = {0}; 3999ae42c70aSBryan Schumaker int status; 4000ae42c70aSBryan Schumaker 4001ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4002ae42c70aSBryan Schumaker if (status < 0) 4003ae42c70aSBryan Schumaker goto xdr_error; 4004ae42c70aSBryan Schumaker 4005ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4006ae42c70aSBryan Schumaker if (status < 0) 4007ae42c70aSBryan Schumaker goto xdr_error; 4008ae42c70aSBryan Schumaker 4009ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4010ae42c70aSBryan Schumaker if (status < 0) 4011ae42c70aSBryan Schumaker goto xdr_error; 4012ae42c70aSBryan Schumaker 4013ae42c70aSBryan Schumaker status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep); 4014ae42c70aSBryan Schumaker if (status < 0) 4015ae42c70aSBryan Schumaker goto xdr_error; 4016ae42c70aSBryan Schumaker 4017f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 40181da177e4SLinus Torvalds xdr_error: 40193110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 40201da177e4SLinus Torvalds return status; 40211da177e4SLinus Torvalds } 40221da177e4SLinus Torvalds 4023ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4024ae42c70aSBryan Schumaker const struct nfs_server *server, int may_sleep) 4025ae42c70aSBryan Schumaker { 4026ae42c70aSBryan Schumaker return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep); 4027ae42c70aSBryan Schumaker } 40281da177e4SLinus Torvalds 4029504913fbSAndy Adamson /* 4030504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4031504913fbSAndy Adamson * one layout driver per file system. 4032504913fbSAndy Adamson */ 4033504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4034504913fbSAndy Adamson uint32_t *layouttype) 4035504913fbSAndy Adamson { 4036504913fbSAndy Adamson uint32_t *p; 4037504913fbSAndy Adamson int num; 4038504913fbSAndy Adamson 4039504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4040504913fbSAndy Adamson if (unlikely(!p)) 4041504913fbSAndy Adamson goto out_overflow; 4042504913fbSAndy Adamson num = be32_to_cpup(p); 4043504913fbSAndy Adamson 4044504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4045504913fbSAndy Adamson if (num == 0) { 4046504913fbSAndy Adamson *layouttype = 0; 4047504913fbSAndy Adamson return 0; 4048504913fbSAndy Adamson } 4049504913fbSAndy Adamson if (num > 1) 4050504913fbSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers " 4051504913fbSAndy Adamson "per filesystem not supported\n", __func__); 4052504913fbSAndy Adamson 4053504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4054504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4055504913fbSAndy Adamson if (unlikely(!p)) 4056504913fbSAndy Adamson goto out_overflow; 4057504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4058504913fbSAndy Adamson return 0; 4059504913fbSAndy Adamson out_overflow: 4060504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4061504913fbSAndy Adamson return -EIO; 4062504913fbSAndy Adamson } 4063504913fbSAndy Adamson 4064504913fbSAndy Adamson /* 4065504913fbSAndy Adamson * The type of file system exported. 4066504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4067504913fbSAndy Adamson */ 4068504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4069504913fbSAndy Adamson uint32_t *layouttype) 4070504913fbSAndy Adamson { 4071504913fbSAndy Adamson int status = 0; 4072504913fbSAndy Adamson 4073504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4074504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4075504913fbSAndy Adamson return -EIO; 4076504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4077504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4078504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4079504913fbSAndy Adamson } else 4080504913fbSAndy Adamson *layouttype = 0; 4081504913fbSAndy Adamson return status; 4082504913fbSAndy Adamson } 4083504913fbSAndy Adamson 40841da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 40851da177e4SLinus Torvalds { 40868687b63aSAl Viro __be32 *savep; 40871da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 40881da177e4SLinus Torvalds int status; 40891da177e4SLinus Torvalds 40901da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 40911da177e4SLinus Torvalds goto xdr_error; 40921da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 40931da177e4SLinus Torvalds goto xdr_error; 40941da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 40951da177e4SLinus Torvalds goto xdr_error; 40961da177e4SLinus Torvalds 40971da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 40981da177e4SLinus Torvalds 40991da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 41001da177e4SLinus Torvalds goto xdr_error; 41011da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 41021da177e4SLinus Torvalds goto xdr_error; 41031da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 41041da177e4SLinus Torvalds goto xdr_error; 41051da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 41061da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 41071da177e4SLinus Torvalds goto xdr_error; 41081da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 410955b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 411055b6e774SRicardo Labiaga if (status != 0) 411155b6e774SRicardo Labiaga goto xdr_error; 4112504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4113504913fbSAndy Adamson if (status != 0) 4114504913fbSAndy Adamson goto xdr_error; 41151da177e4SLinus Torvalds 41161da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 41171da177e4SLinus Torvalds xdr_error: 41183110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 41191da177e4SLinus Torvalds return status; 41201da177e4SLinus Torvalds } 41211da177e4SLinus Torvalds 41221da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 41231da177e4SLinus Torvalds { 41248687b63aSAl Viro __be32 *p; 41251da177e4SLinus Torvalds uint32_t len; 41261da177e4SLinus Torvalds int status; 41271da177e4SLinus Torvalds 41289936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 41299936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 41309936781dSTrond Myklebust 41311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 41321da177e4SLinus Torvalds if (status) 41331da177e4SLinus Torvalds return status; 41341da177e4SLinus Torvalds 4135c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4136c0eae66eSBenny Halevy if (unlikely(!p)) 4137c0eae66eSBenny Halevy goto out_overflow; 4138cccddf4fSBenny Halevy len = be32_to_cpup(p); 41391da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 41401da177e4SLinus Torvalds return -EIO; 41411da177e4SLinus Torvalds fh->size = len; 4142c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4143c0eae66eSBenny Halevy if (unlikely(!p)) 4144c0eae66eSBenny Halevy goto out_overflow; 414599398d06SBenny Halevy memcpy(fh->data, p, len); 41461da177e4SLinus Torvalds return 0; 4147c0eae66eSBenny Halevy out_overflow: 4148c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4149c0eae66eSBenny Halevy return -EIO; 41501da177e4SLinus Torvalds } 41511da177e4SLinus Torvalds 41521da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41531da177e4SLinus Torvalds { 41541da177e4SLinus Torvalds int status; 41551da177e4SLinus Torvalds 41561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 41571da177e4SLinus Torvalds if (status) 41581da177e4SLinus Torvalds return status; 41591da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 41601da177e4SLinus Torvalds } 41611da177e4SLinus Torvalds 41621da177e4SLinus Torvalds /* 41631da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 41641da177e4SLinus Torvalds */ 4165911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 41661da177e4SLinus Torvalds { 4167911d1aafSTrond Myklebust uint64_t offset, length, clientid; 41688687b63aSAl Viro __be32 *p; 4169911d1aafSTrond Myklebust uint32_t namelen, type; 41701da177e4SLinus Torvalds 4171babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4172c0eae66eSBenny Halevy if (unlikely(!p)) 4173c0eae66eSBenny Halevy goto out_overflow; 4174babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 41753ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4176babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4177babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4178911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4179911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4180911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4181911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4182911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4183911d1aafSTrond Myklebust if (type & 1) 4184911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4185911d1aafSTrond Myklebust fl->fl_pid = 0; 4186911d1aafSTrond Myklebust } 4187babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4188babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4189babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4190c0eae66eSBenny Halevy if (likely(p)) 41911da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4192c0eae66eSBenny Halevy out_overflow: 4193c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4194c0eae66eSBenny Halevy return -EIO; 41951da177e4SLinus Torvalds } 41961da177e4SLinus Torvalds 4197911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 41981da177e4SLinus Torvalds { 41991da177e4SLinus Torvalds int status; 42001da177e4SLinus Torvalds 42011da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4202c1d51931STrond Myklebust if (status == -EIO) 4203c1d51931STrond Myklebust goto out; 42041da177e4SLinus Torvalds if (status == 0) { 420507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 420607d30434SBenny Halevy if (unlikely(status)) 420707d30434SBenny Halevy goto out; 42081da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4209c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4210c1d51931STrond Myklebust if (res->open_seqid != NULL) 4211c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4212c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4213c1d51931STrond Myklebust out: 42141da177e4SLinus Torvalds return status; 42151da177e4SLinus Torvalds } 42161da177e4SLinus Torvalds 4217911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 42181da177e4SLinus Torvalds { 42191da177e4SLinus Torvalds int status; 42201da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 42211da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4222911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 42231da177e4SLinus Torvalds return status; 42241da177e4SLinus Torvalds } 42251da177e4SLinus Torvalds 4226911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 42271da177e4SLinus Torvalds { 42281da177e4SLinus Torvalds int status; 42291da177e4SLinus Torvalds 42301da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4231c1d51931STrond Myklebust if (status != -EIO) 4232c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 423307d30434SBenny Halevy if (status == 0) 423407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 42351da177e4SLinus Torvalds return status; 42361da177e4SLinus Torvalds } 42371da177e4SLinus Torvalds 4238d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4239d3c7b7ccSTrond Myklebust { 4240d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4241d3c7b7ccSTrond Myklebust } 4242d3c7b7ccSTrond Myklebust 42431da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 42441da177e4SLinus Torvalds { 42451da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 42461da177e4SLinus Torvalds } 42471da177e4SLinus Torvalds 42481da177e4SLinus Torvalds /* This is too sick! */ 42491da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 42501da177e4SLinus Torvalds { 42518687b63aSAl Viro __be32 *p; 42521da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 42531da177e4SLinus Torvalds 4254c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4255c0eae66eSBenny Halevy if (unlikely(!p)) 4256c0eae66eSBenny Halevy goto out_overflow; 42576f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 42581da177e4SLinus Torvalds switch (limit_type) { 42591da177e4SLinus Torvalds case 1: 4260cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 42611da177e4SLinus Torvalds break; 42621da177e4SLinus Torvalds case 2: 42636f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4264cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 42651da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 42661da177e4SLinus Torvalds } 42671da177e4SLinus Torvalds return 0; 4268c0eae66eSBenny Halevy out_overflow: 4269c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4270c0eae66eSBenny Halevy return -EIO; 42711da177e4SLinus Torvalds } 42721da177e4SLinus Torvalds 42731da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 42741da177e4SLinus Torvalds { 42758687b63aSAl Viro __be32 *p; 42761da177e4SLinus Torvalds uint32_t delegation_type; 427707d30434SBenny Halevy int status; 42781da177e4SLinus Torvalds 4279c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4280c0eae66eSBenny Halevy if (unlikely(!p)) 4281c0eae66eSBenny Halevy goto out_overflow; 4282cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 42831da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 42841da177e4SLinus Torvalds res->delegation_type = 0; 42851da177e4SLinus Torvalds return 0; 42861da177e4SLinus Torvalds } 428707d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 428807d30434SBenny Halevy if (unlikely(status)) 428907d30434SBenny Halevy return status; 4290c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4291c0eae66eSBenny Halevy if (unlikely(!p)) 4292c0eae66eSBenny Halevy goto out_overflow; 4293cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 429405d564feSAndy Adamson 42951da177e4SLinus Torvalds switch (delegation_type) { 42961da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 42971da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 42981da177e4SLinus Torvalds break; 42991da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 43001da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 43011da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 43021da177e4SLinus Torvalds return -EIO; 43031da177e4SLinus Torvalds } 43047539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4305c0eae66eSBenny Halevy out_overflow: 4306c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4307c0eae66eSBenny Halevy return -EIO; 43081da177e4SLinus Torvalds } 43091da177e4SLinus Torvalds 43101da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 43111da177e4SLinus Torvalds { 43128687b63aSAl Viro __be32 *p; 4313aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 43141da177e4SLinus Torvalds int status; 43151da177e4SLinus Torvalds 43161da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4317c1d51931STrond Myklebust if (status != -EIO) 4318c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 431907d30434SBenny Halevy if (!status) 432007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 432107d30434SBenny Halevy if (unlikely(status)) 43221da177e4SLinus Torvalds return status; 43231da177e4SLinus Torvalds 43241da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 43251da177e4SLinus Torvalds 4326c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4327c0eae66eSBenny Halevy if (unlikely(!p)) 4328c0eae66eSBenny Halevy goto out_overflow; 43296f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4330cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 43311da177e4SLinus Torvalds if (bmlen > 10) 43321da177e4SLinus Torvalds goto xdr_error; 43331da177e4SLinus Torvalds 4334c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4335c0eae66eSBenny Halevy if (unlikely(!p)) 4336c0eae66eSBenny Halevy goto out_overflow; 4337aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4338aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 43396f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4340aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4341aa53ed54SJeff Layton res->attrset[i] = 0; 4342aa53ed54SJeff Layton 43431da177e4SLinus Torvalds return decode_delegation(xdr, res); 43441da177e4SLinus Torvalds xdr_error: 43453110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 43461da177e4SLinus Torvalds return -EIO; 4347c0eae66eSBenny Halevy out_overflow: 4348c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4349c0eae66eSBenny Halevy return -EIO; 43501da177e4SLinus Torvalds } 43511da177e4SLinus Torvalds 43521da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 43531da177e4SLinus Torvalds { 43541da177e4SLinus Torvalds int status; 43551da177e4SLinus Torvalds 43561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4357c1d51931STrond Myklebust if (status != -EIO) 4358c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 435907d30434SBenny Halevy if (!status) 436007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43611da177e4SLinus Torvalds return status; 43621da177e4SLinus Torvalds } 43631da177e4SLinus Torvalds 43641da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 43651da177e4SLinus Torvalds { 43661da177e4SLinus Torvalds int status; 43671da177e4SLinus Torvalds 43681da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4369c1d51931STrond Myklebust if (status != -EIO) 4370c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 437107d30434SBenny Halevy if (!status) 437207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43731da177e4SLinus Torvalds return status; 43741da177e4SLinus Torvalds } 43751da177e4SLinus Torvalds 43761da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 43771da177e4SLinus Torvalds { 43781da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 43791da177e4SLinus Torvalds } 43801da177e4SLinus Torvalds 43811da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 43821da177e4SLinus Torvalds { 43831da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 43841da177e4SLinus Torvalds } 43851da177e4SLinus Torvalds 43861da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 43871da177e4SLinus Torvalds { 43881da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 43898687b63aSAl Viro __be32 *p; 43901da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 43911da177e4SLinus Torvalds int status; 43921da177e4SLinus Torvalds 43931da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 43941da177e4SLinus Torvalds if (status) 43951da177e4SLinus Torvalds return status; 4396c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4397c0eae66eSBenny Halevy if (unlikely(!p)) 4398c0eae66eSBenny Halevy goto out_overflow; 43996f723f77SBenny Halevy eof = be32_to_cpup(p++); 4400cccddf4fSBenny Halevy count = be32_to_cpup(p); 44018111f373SChuck Lever hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 44021da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 44031da177e4SLinus Torvalds if (count > recvd) { 4404fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 44051da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 44061da177e4SLinus Torvalds count = recvd; 44071da177e4SLinus Torvalds eof = 0; 44081da177e4SLinus Torvalds } 44091da177e4SLinus Torvalds xdr_read_pages(xdr, count); 44101da177e4SLinus Torvalds res->eof = eof; 44111da177e4SLinus Torvalds res->count = count; 44121da177e4SLinus Torvalds return 0; 4413c0eae66eSBenny Halevy out_overflow: 4414c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4415c0eae66eSBenny Halevy return -EIO; 44161da177e4SLinus Torvalds } 44171da177e4SLinus Torvalds 44181da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 44191da177e4SLinus Torvalds { 44201da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 44211da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4422bcecff77SChuck Lever size_t hdrlen; 4423bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 4424bcecff77SChuck Lever int status; 44251da177e4SLinus Torvalds 44261da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4427db942bbdSBenny Halevy if (!status) 4428db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4429db942bbdSBenny Halevy if (unlikely(status)) 44301da177e4SLinus Torvalds return status; 443144109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 443244109241SFred Isaman __func__, 4433eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4434eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4435eadf4598STrond Myklebust 44361da177e4SLinus Torvalds 4437db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 44381da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 44391da177e4SLinus Torvalds if (pglen > recvd) 44401da177e4SLinus Torvalds pglen = recvd; 44411da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 44421da177e4SLinus Torvalds 44437bda2cdfSJeff Layton 4444ac396128STrond Myklebust return pglen; 44451da177e4SLinus Torvalds } 44461da177e4SLinus Torvalds 44471da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 44481da177e4SLinus Torvalds { 44491da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 44501da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4451bcecff77SChuck Lever size_t hdrlen; 4452bcecff77SChuck Lever u32 len, recvd; 44538687b63aSAl Viro __be32 *p; 44541da177e4SLinus Torvalds int status; 44551da177e4SLinus Torvalds 44561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 44571da177e4SLinus Torvalds if (status) 44581da177e4SLinus Torvalds return status; 44591da177e4SLinus Torvalds 44601da177e4SLinus Torvalds /* Convert length of symlink */ 4461c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4462c0eae66eSBenny Halevy if (unlikely(!p)) 4463c0eae66eSBenny Halevy goto out_overflow; 4464cccddf4fSBenny Halevy len = be32_to_cpup(p); 44651da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4466fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 44671da177e4SLinus Torvalds return -ENAMETOOLONG; 44681da177e4SLinus Torvalds } 44691da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 44701da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 44711da177e4SLinus Torvalds if (recvd < len) { 4472fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 44731da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 44741da177e4SLinus Torvalds return -EIO; 44751da177e4SLinus Torvalds } 44761da177e4SLinus Torvalds xdr_read_pages(xdr, len); 44771da177e4SLinus Torvalds /* 44781da177e4SLinus Torvalds * The XDR encode routine has set things up so that 44791da177e4SLinus Torvalds * the link text will be copied directly into the 44801da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 44811da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 44821da177e4SLinus Torvalds * null-termination). 44831da177e4SLinus Torvalds */ 4484b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 44851da177e4SLinus Torvalds return 0; 4486c0eae66eSBenny Halevy out_overflow: 4487c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4488c0eae66eSBenny Halevy return -EIO; 44891da177e4SLinus Torvalds } 44901da177e4SLinus Torvalds 44911da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 44921da177e4SLinus Torvalds { 44931da177e4SLinus Torvalds int status; 44941da177e4SLinus Torvalds 44951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 44961da177e4SLinus Torvalds if (status) 44971da177e4SLinus Torvalds goto out; 44981da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 44991da177e4SLinus Torvalds out: 45001da177e4SLinus Torvalds return status; 45011da177e4SLinus Torvalds } 45021da177e4SLinus Torvalds 45031da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 45041da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 45051da177e4SLinus Torvalds { 45061da177e4SLinus Torvalds int status; 45071da177e4SLinus Torvalds 45081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 45091da177e4SLinus Torvalds if (status) 45101da177e4SLinus Torvalds goto out; 45111da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 45121da177e4SLinus Torvalds goto out; 45131da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 45141da177e4SLinus Torvalds out: 45151da177e4SLinus Torvalds return status; 45161da177e4SLinus Torvalds } 45171da177e4SLinus Torvalds 45181da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 45191da177e4SLinus Torvalds { 45201da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 45211da177e4SLinus Torvalds } 45221da177e4SLinus Torvalds 452356ae19f3STrond Myklebust static int 452456ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 452556ae19f3STrond Myklebust { 452656ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 452756ae19f3STrond Myklebust } 452856ae19f3STrond Myklebust 4529029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4530029d105eSJ. Bruce Fields size_t *acl_len) 4531029d105eSJ. Bruce Fields { 45328687b63aSAl Viro __be32 *savep; 4533029d105eSJ. Bruce Fields uint32_t attrlen, 4534029d105eSJ. Bruce Fields bitmap[2] = {0}; 4535029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4536029d105eSJ. Bruce Fields int status; 4537029d105eSJ. Bruce Fields 4538029d105eSJ. Bruce Fields *acl_len = 0; 4539029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4540029d105eSJ. Bruce Fields goto out; 4541029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4542029d105eSJ. Bruce Fields goto out; 4543029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4544029d105eSJ. Bruce Fields goto out; 4545029d105eSJ. Bruce Fields 4546029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4547029d105eSJ. Bruce Fields return -EIO; 4548029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4549bcecff77SChuck Lever size_t hdrlen; 4550bcecff77SChuck Lever u32 recvd; 4551029d105eSJ. Bruce Fields 4552029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4553029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4554029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4555029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4556029d105eSJ. Bruce Fields if (attrlen > recvd) { 4557fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4558029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4559029d105eSJ. Bruce Fields attrlen, recvd); 4560029d105eSJ. Bruce Fields return -EINVAL; 4561029d105eSJ. Bruce Fields } 4562029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4563029d105eSJ. Bruce Fields *acl_len = attrlen; 45648c233cf9SJ. Bruce Fields } else 45658c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4566029d105eSJ. Bruce Fields 4567029d105eSJ. Bruce Fields out: 4568029d105eSJ. Bruce Fields return status; 4569029d105eSJ. Bruce Fields } 4570029d105eSJ. Bruce Fields 45711da177e4SLinus Torvalds static int 45721da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 45731da177e4SLinus Torvalds { 45741da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 45751da177e4SLinus Torvalds } 45761da177e4SLinus Torvalds 45779e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 45781da177e4SLinus Torvalds { 45798687b63aSAl Viro __be32 *p; 45801da177e4SLinus Torvalds uint32_t bmlen; 45811da177e4SLinus Torvalds int status; 45821da177e4SLinus Torvalds 45831da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 45841da177e4SLinus Torvalds if (status) 45851da177e4SLinus Torvalds return status; 4586c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4587c0eae66eSBenny Halevy if (unlikely(!p)) 4588c0eae66eSBenny Halevy goto out_overflow; 4589cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4590c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4591c0eae66eSBenny Halevy if (likely(p)) 45921da177e4SLinus Torvalds return 0; 4593c0eae66eSBenny Halevy out_overflow: 4594c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4595c0eae66eSBenny Halevy return -EIO; 45961da177e4SLinus Torvalds } 45971da177e4SLinus Torvalds 4598bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 45991da177e4SLinus Torvalds { 46008687b63aSAl Viro __be32 *p; 46011da177e4SLinus Torvalds uint32_t opnum; 46021da177e4SLinus Torvalds int32_t nfserr; 46031da177e4SLinus Torvalds 4604c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4605c0eae66eSBenny Halevy if (unlikely(!p)) 4606c0eae66eSBenny Halevy goto out_overflow; 46076f723f77SBenny Halevy opnum = be32_to_cpup(p++); 46081da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4609fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 46101da177e4SLinus Torvalds " %d\n", opnum); 46111da177e4SLinus Torvalds return -EIO; 46121da177e4SLinus Torvalds } 4613cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 46141da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4615c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4616c0eae66eSBenny Halevy if (unlikely(!p)) 4617c0eae66eSBenny Halevy goto out_overflow; 4618bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 4619bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 46201da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 46211da177e4SLinus Torvalds uint32_t len; 46221da177e4SLinus Torvalds 46231da177e4SLinus Torvalds /* skip netid string */ 4624c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4625c0eae66eSBenny Halevy if (unlikely(!p)) 4626c0eae66eSBenny Halevy goto out_overflow; 4627cccddf4fSBenny Halevy len = be32_to_cpup(p); 4628c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4629c0eae66eSBenny Halevy if (unlikely(!p)) 4630c0eae66eSBenny Halevy goto out_overflow; 46311da177e4SLinus Torvalds 46321da177e4SLinus Torvalds /* skip uaddr string */ 4633c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4634c0eae66eSBenny Halevy if (unlikely(!p)) 4635c0eae66eSBenny Halevy goto out_overflow; 4636cccddf4fSBenny Halevy len = be32_to_cpup(p); 4637c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4638c0eae66eSBenny Halevy if (unlikely(!p)) 4639c0eae66eSBenny Halevy goto out_overflow; 46401da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 46411da177e4SLinus Torvalds } else 4642856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 46431da177e4SLinus Torvalds 46441da177e4SLinus Torvalds return 0; 4645c0eae66eSBenny Halevy out_overflow: 4646c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4647c0eae66eSBenny Halevy return -EIO; 46481da177e4SLinus Torvalds } 46491da177e4SLinus Torvalds 46501da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 46511da177e4SLinus Torvalds { 46521da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 46531da177e4SLinus Torvalds } 46541da177e4SLinus Torvalds 46551da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 46561da177e4SLinus Torvalds { 46578687b63aSAl Viro __be32 *p; 46581da177e4SLinus Torvalds int status; 46591da177e4SLinus Torvalds 46601da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 46611da177e4SLinus Torvalds if (status) 46621da177e4SLinus Torvalds return status; 46631da177e4SLinus Torvalds 4664c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4665c0eae66eSBenny Halevy if (unlikely(!p)) 4666c0eae66eSBenny Halevy goto out_overflow; 46676f723f77SBenny Halevy res->count = be32_to_cpup(p++); 46686f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 466999398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 46701da177e4SLinus Torvalds return 0; 4671c0eae66eSBenny Halevy out_overflow: 4672c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4673c0eae66eSBenny Halevy return -EIO; 46741da177e4SLinus Torvalds } 46751da177e4SLinus Torvalds 46761da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 46771da177e4SLinus Torvalds { 46781da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 46791da177e4SLinus Torvalds } 46801da177e4SLinus Torvalds 468199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 468299fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 468399fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 468499fe60d0SBenny Halevy { 468599fe60d0SBenny Halevy __be32 *p; 468699fe60d0SBenny Halevy uint32_t dummy; 46872460ba57SBenny Halevy char *dummy_str; 468899fe60d0SBenny Halevy int status; 468999fe60d0SBenny Halevy struct nfs_client *clp = res->client; 469099fe60d0SBenny Halevy 469199fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 469299fe60d0SBenny Halevy if (status) 469399fe60d0SBenny Halevy return status; 469499fe60d0SBenny Halevy 4695c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4696c0eae66eSBenny Halevy if (unlikely(!p)) 4697c0eae66eSBenny Halevy goto out_overflow; 4698cccddf4fSBenny Halevy xdr_decode_hyper(p, &clp->cl_ex_clid); 4699c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4700c0eae66eSBenny Halevy if (unlikely(!p)) 4701c0eae66eSBenny Halevy goto out_overflow; 47026f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 47036f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 470499fe60d0SBenny Halevy 470599fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4706cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 470799fe60d0SBenny Halevy if (dummy != SP4_NONE) 470899fe60d0SBenny Halevy return -EIO; 470999fe60d0SBenny Halevy 471099fe60d0SBenny Halevy /* Throw away minor_id */ 4711c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4712c0eae66eSBenny Halevy if (unlikely(!p)) 4713c0eae66eSBenny Halevy goto out_overflow; 471499fe60d0SBenny Halevy 471599fe60d0SBenny Halevy /* Throw away Major id */ 47162460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47172460ba57SBenny Halevy if (unlikely(status)) 47182460ba57SBenny Halevy return status; 471999fe60d0SBenny Halevy 472099fe60d0SBenny Halevy /* Throw away server_scope */ 47212460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47222460ba57SBenny Halevy if (unlikely(status)) 47232460ba57SBenny Halevy return status; 472499fe60d0SBenny Halevy 472599fe60d0SBenny Halevy /* Throw away Implementation id array */ 47262460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47272460ba57SBenny Halevy if (unlikely(status)) 47282460ba57SBenny Halevy return status; 472999fe60d0SBenny Halevy 473099fe60d0SBenny Halevy return 0; 4731c0eae66eSBenny Halevy out_overflow: 4732c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4733c0eae66eSBenny Halevy return -EIO; 473499fe60d0SBenny Halevy } 4735fc931582SAndy Adamson 4736fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4737fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4738fc931582SAndy Adamson { 4739fc931582SAndy Adamson __be32 *p; 4740fc931582SAndy Adamson u32 nr_attrs; 4741fc931582SAndy Adamson 4742c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4743c0eae66eSBenny Halevy if (unlikely(!p)) 4744c0eae66eSBenny Halevy goto out_overflow; 47456f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 47466f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 47476f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 47486f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 47496f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 47506f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4751cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4752fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4753fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4754fc931582SAndy Adamson __func__, nr_attrs); 4755fc931582SAndy Adamson return -EINVAL; 4756fc931582SAndy Adamson } 4757c0eae66eSBenny Halevy if (nr_attrs == 1) { 4758c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4759c0eae66eSBenny Halevy if (unlikely(!p)) 4760c0eae66eSBenny Halevy goto out_overflow; 4761c0eae66eSBenny Halevy } 4762fc931582SAndy Adamson return 0; 4763c0eae66eSBenny Halevy out_overflow: 4764c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4765c0eae66eSBenny Halevy return -EIO; 4766fc931582SAndy Adamson } 4767fc931582SAndy Adamson 4768e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4769e78291e4SBenny Halevy { 4770e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4771fc931582SAndy Adamson } 4772fc931582SAndy Adamson 4773fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4774fc931582SAndy Adamson struct nfs41_create_session_res *res) 4775fc931582SAndy Adamson { 4776fc931582SAndy Adamson __be32 *p; 4777fc931582SAndy Adamson int status; 4778fc931582SAndy Adamson struct nfs_client *clp = res->client; 4779fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4780fc931582SAndy Adamson 4781fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4782e78291e4SBenny Halevy if (!status) 4783e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4784e78291e4SBenny Halevy if (unlikely(status)) 4785fc931582SAndy Adamson return status; 4786fc931582SAndy Adamson 4787fc931582SAndy Adamson /* seqid, flags */ 4788c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4789c0eae66eSBenny Halevy if (unlikely(!p)) 4790c0eae66eSBenny Halevy goto out_overflow; 47916f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4792cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4793fc931582SAndy Adamson 4794fc931582SAndy Adamson /* Channel attributes */ 4795fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4796fc931582SAndy Adamson if (!status) 4797fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4798fc931582SAndy Adamson return status; 4799c0eae66eSBenny Halevy out_overflow: 4800c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4801c0eae66eSBenny Halevy return -EIO; 4802fc931582SAndy Adamson } 48030f3e66c6SAndy Adamson 48040f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 48050f3e66c6SAndy Adamson { 48060f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 48070f3e66c6SAndy Adamson } 480818019753SRicardo Labiaga 480918019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 481018019753SRicardo Labiaga { 481118019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 481218019753SRicardo Labiaga } 481399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 481499fe60d0SBenny Halevy 48159b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 48169b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 48179b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 48189b7b9fccSAndy Adamson { 48199b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4820fc01cea9SAndy Adamson struct nfs4_sessionid id; 4821fc01cea9SAndy Adamson u32 dummy; 4822fc01cea9SAndy Adamson int status; 4823fc01cea9SAndy Adamson __be32 *p; 4824fc01cea9SAndy Adamson 48259b7b9fccSAndy Adamson if (!res->sr_session) 48269b7b9fccSAndy Adamson return 0; 48279b7b9fccSAndy Adamson 4828fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4829e78291e4SBenny Halevy if (!status) 4830e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 4831e78291e4SBenny Halevy if (unlikely(status)) 4832fc01cea9SAndy Adamson goto out_err; 48339b7b9fccSAndy Adamson 4834fc01cea9SAndy Adamson /* 4835fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4836fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4837fc01cea9SAndy Adamson */ 4838fdcb4577STrond Myklebust status = -EREMOTEIO; 4839fc01cea9SAndy Adamson 4840fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4841fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4842fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4843fc01cea9SAndy Adamson goto out_err; 4844fc01cea9SAndy Adamson } 4845e78291e4SBenny Halevy 4846c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4847c0eae66eSBenny Halevy if (unlikely(!p)) 4848c0eae66eSBenny Halevy goto out_overflow; 4849e78291e4SBenny Halevy 4850fc01cea9SAndy Adamson /* seqid */ 48516f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4852dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 4853fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4854fc01cea9SAndy Adamson goto out_err; 4855fc01cea9SAndy Adamson } 4856fc01cea9SAndy Adamson /* slot id */ 48576f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4858dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 4859fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4860fc01cea9SAndy Adamson goto out_err; 4861fc01cea9SAndy Adamson } 4862fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 48636f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4864fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 48656f723f77SBenny Halevy dummy = be32_to_cpup(p++); 48660629e370SAlexandros Batsakis /* result flags */ 48670629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 4868fc01cea9SAndy Adamson status = 0; 4869fc01cea9SAndy Adamson out_err: 4870fc01cea9SAndy Adamson res->sr_status = status; 4871fc01cea9SAndy Adamson return status; 4872c0eae66eSBenny Halevy out_overflow: 4873c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4874c0eae66eSBenny Halevy status = -EIO; 4875c0eae66eSBenny Halevy goto out_err; 4876fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 48779b7b9fccSAndy Adamson return 0; 4878fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 48799b7b9fccSAndy Adamson } 48809b7b9fccSAndy Adamson 4881b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 4882b1f69b75SAndy Adamson 4883b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 4884b1f69b75SAndy Adamson struct pnfs_device *pdev) 4885b1f69b75SAndy Adamson { 4886b1f69b75SAndy Adamson __be32 *p; 4887b1f69b75SAndy Adamson uint32_t len, type; 4888b1f69b75SAndy Adamson int status; 4889b1f69b75SAndy Adamson 4890b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 4891b1f69b75SAndy Adamson if (status) { 4892b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 4893b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 4894b1f69b75SAndy Adamson if (unlikely(!p)) 4895b1f69b75SAndy Adamson goto out_overflow; 4896b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 4897b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 4898b1f69b75SAndy Adamson __func__, pdev->mincount); 4899b1f69b75SAndy Adamson } 4900b1f69b75SAndy Adamson return status; 4901b1f69b75SAndy Adamson } 4902b1f69b75SAndy Adamson 4903b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 4904b1f69b75SAndy Adamson if (unlikely(!p)) 4905b1f69b75SAndy Adamson goto out_overflow; 4906b1f69b75SAndy Adamson type = be32_to_cpup(p++); 4907b1f69b75SAndy Adamson if (type != pdev->layout_type) { 4908b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 4909b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 4910b1f69b75SAndy Adamson return -EINVAL; 4911b1f69b75SAndy Adamson } 4912b1f69b75SAndy Adamson /* 4913b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 4914b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 4915b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 4916b1f69b75SAndy Adamson */ 4917b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 4918b1f69b75SAndy Adamson xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ 4919b1f69b75SAndy Adamson 4920b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 4921b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 4922b1f69b75SAndy Adamson if (unlikely(!p)) 4923b1f69b75SAndy Adamson goto out_overflow; 4924b1f69b75SAndy Adamson len = be32_to_cpup(p); 4925b1f69b75SAndy Adamson if (len) { 4926ead00597SChuck Lever uint32_t i; 4927b1f69b75SAndy Adamson 4928b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 4929b1f69b75SAndy Adamson if (unlikely(!p)) 4930b1f69b75SAndy Adamson goto out_overflow; 4931b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 4932b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 4933b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 4934b1f69b75SAndy Adamson __func__); 4935b1f69b75SAndy Adamson return -EIO; 4936b1f69b75SAndy Adamson } 4937b1f69b75SAndy Adamson } 4938b1f69b75SAndy Adamson } 4939b1f69b75SAndy Adamson return 0; 4940b1f69b75SAndy Adamson out_overflow: 4941b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 4942b1f69b75SAndy Adamson return -EIO; 4943b1f69b75SAndy Adamson } 4944b1f69b75SAndy Adamson 4945b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 4946b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 4947b1f69b75SAndy Adamson { 4948b1f69b75SAndy Adamson __be32 *p; 4949b1f69b75SAndy Adamson int status; 4950b1f69b75SAndy Adamson u32 layout_count; 4951b1f69b75SAndy Adamson 4952b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 4953b1f69b75SAndy Adamson if (status) 4954b1f69b75SAndy Adamson return status; 4955b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); 4956b1f69b75SAndy Adamson if (unlikely(!p)) 4957b1f69b75SAndy Adamson goto out_overflow; 4958b1f69b75SAndy Adamson res->return_on_close = be32_to_cpup(p++); 4959b1f69b75SAndy Adamson p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); 4960b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 4961b1f69b75SAndy Adamson if (!layout_count) { 4962b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 4963b1f69b75SAndy Adamson __func__); 4964b1f69b75SAndy Adamson return -EINVAL; 4965b1f69b75SAndy Adamson } 4966b1f69b75SAndy Adamson 4967b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 24); 4968b1f69b75SAndy Adamson if (unlikely(!p)) 4969b1f69b75SAndy Adamson goto out_overflow; 4970b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 4971b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 4972b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 4973b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 4974b1f69b75SAndy Adamson 4975b1f69b75SAndy Adamson status = decode_opaque_inline(xdr, &res->layout.len, (char **)&p); 4976b1f69b75SAndy Adamson if (unlikely(status)) 4977b1f69b75SAndy Adamson return status; 4978b1f69b75SAndy Adamson 4979b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 4980b1f69b75SAndy Adamson __func__, 4981b1f69b75SAndy Adamson (unsigned long)res->range.offset, 4982b1f69b75SAndy Adamson (unsigned long)res->range.length, 4983b1f69b75SAndy Adamson res->range.iomode, 4984b1f69b75SAndy Adamson res->type, 4985b1f69b75SAndy Adamson res->layout.len); 4986b1f69b75SAndy Adamson 4987b1f69b75SAndy Adamson /* nfs4_proc_layoutget allocated a single page */ 4988b1f69b75SAndy Adamson if (res->layout.len > PAGE_SIZE) 4989b1f69b75SAndy Adamson return -ENOMEM; 4990b1f69b75SAndy Adamson memcpy(res->layout.buf, p, res->layout.len); 4991b1f69b75SAndy Adamson 4992b1f69b75SAndy Adamson if (layout_count > 1) { 4993b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 4994b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 4995b1f69b75SAndy Adamson * the client may see a response that is less than the 4996b1f69b75SAndy Adamson * minimum it requested. 4997b1f69b75SAndy Adamson */ 4998b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 4999b1f69b75SAndy Adamson __func__, layout_count); 5000b1f69b75SAndy Adamson } 5001b1f69b75SAndy Adamson 5002b1f69b75SAndy Adamson return 0; 5003b1f69b75SAndy Adamson out_overflow: 5004b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5005b1f69b75SAndy Adamson return -EIO; 5006b1f69b75SAndy Adamson } 5007b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5008b1f69b75SAndy Adamson 50091da177e4SLinus Torvalds /* 501049c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 501149c2559eSBenny Halevy */ 501249c2559eSBenny Halevy 501349c2559eSBenny Halevy /* 50141da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 50151da177e4SLinus Torvalds */ 5016bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5017bf269551SChuck Lever struct xdr_stream *xdr, 5018bf269551SChuck Lever struct nfs_closeres *res) 50191da177e4SLinus Torvalds { 50201da177e4SLinus Torvalds struct compound_hdr hdr; 50211da177e4SLinus Torvalds int status; 50221da177e4SLinus Torvalds 5023bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 50241da177e4SLinus Torvalds if (status) 50251da177e4SLinus Torvalds goto out; 5026bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 50279b7b9fccSAndy Adamson if (status) 50289b7b9fccSAndy Adamson goto out; 5029bf269551SChuck Lever status = decode_putfh(xdr); 50301da177e4SLinus Torvalds if (status) 50311da177e4SLinus Torvalds goto out; 5032bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5033516a6af6STrond Myklebust if (status != 0) 5034516a6af6STrond Myklebust goto out; 5035bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 503680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50371da177e4SLinus Torvalds out: 50381da177e4SLinus Torvalds return status; 50391da177e4SLinus Torvalds } 50401da177e4SLinus Torvalds 50411da177e4SLinus Torvalds /* 50421da177e4SLinus Torvalds * Decode ACCESS response 50431da177e4SLinus Torvalds */ 5044bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5045bf269551SChuck Lever struct nfs4_accessres *res) 50461da177e4SLinus Torvalds { 50471da177e4SLinus Torvalds struct compound_hdr hdr; 50481da177e4SLinus Torvalds int status; 50491da177e4SLinus Torvalds 5050bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 50519b7b9fccSAndy Adamson if (status) 50529b7b9fccSAndy Adamson goto out; 5053bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 50549b7b9fccSAndy Adamson if (status) 50551da177e4SLinus Torvalds goto out; 5056bf269551SChuck Lever status = decode_putfh(xdr); 505776b32999STrond Myklebust if (status != 0) 505876b32999STrond Myklebust goto out; 5059bf269551SChuck Lever status = decode_access(xdr, res); 506076b32999STrond Myklebust if (status != 0) 506176b32999STrond Myklebust goto out; 5062bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 506380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50641da177e4SLinus Torvalds out: 50651da177e4SLinus Torvalds return status; 50661da177e4SLinus Torvalds } 50671da177e4SLinus Torvalds 50681da177e4SLinus Torvalds /* 50691da177e4SLinus Torvalds * Decode LOOKUP response 50701da177e4SLinus Torvalds */ 5071bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5072bf269551SChuck Lever struct nfs4_lookup_res *res) 50731da177e4SLinus Torvalds { 50741da177e4SLinus Torvalds struct compound_hdr hdr; 50751da177e4SLinus Torvalds int status; 50761da177e4SLinus Torvalds 5077bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 50789b7b9fccSAndy Adamson if (status) 50799b7b9fccSAndy Adamson goto out; 5080bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 50819b7b9fccSAndy Adamson if (status) 50821da177e4SLinus Torvalds goto out; 5083bf269551SChuck Lever status = decode_putfh(xdr); 5084bf269551SChuck Lever if (status) 50851da177e4SLinus Torvalds goto out; 5086bf269551SChuck Lever status = decode_lookup(xdr); 5087bf269551SChuck Lever if (status) 50881da177e4SLinus Torvalds goto out; 5089bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5090bf269551SChuck Lever if (status) 50911da177e4SLinus Torvalds goto out; 5092bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server 509380e52aceSTrond Myklebust ,!RPC_IS_ASYNC(rqstp->rq_task)); 50941da177e4SLinus Torvalds out: 50951da177e4SLinus Torvalds return status; 50961da177e4SLinus Torvalds } 50971da177e4SLinus Torvalds 50981da177e4SLinus Torvalds /* 50991da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 51001da177e4SLinus Torvalds */ 5101bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5102bf269551SChuck Lever struct xdr_stream *xdr, 5103bf269551SChuck Lever struct nfs4_lookup_res *res) 51041da177e4SLinus Torvalds { 51051da177e4SLinus Torvalds struct compound_hdr hdr; 51061da177e4SLinus Torvalds int status; 51071da177e4SLinus Torvalds 5108bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 51099b7b9fccSAndy Adamson if (status) 51109b7b9fccSAndy Adamson goto out; 5111bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 51129b7b9fccSAndy Adamson if (status) 51131da177e4SLinus Torvalds goto out; 5114bf269551SChuck Lever status = decode_putrootfh(xdr); 5115bf269551SChuck Lever if (status) 51161da177e4SLinus Torvalds goto out; 5117bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5118bf269551SChuck Lever if (status == 0) 5119bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server, 512080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51211da177e4SLinus Torvalds out: 51221da177e4SLinus Torvalds return status; 51231da177e4SLinus Torvalds } 51241da177e4SLinus Torvalds 51251da177e4SLinus Torvalds /* 51261da177e4SLinus Torvalds * Decode REMOVE response 51271da177e4SLinus Torvalds */ 5128bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5129bf269551SChuck Lever struct nfs_removeres *res) 51301da177e4SLinus Torvalds { 51311da177e4SLinus Torvalds struct compound_hdr hdr; 51321da177e4SLinus Torvalds int status; 51331da177e4SLinus Torvalds 5134bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 51359b7b9fccSAndy Adamson if (status) 51369b7b9fccSAndy Adamson goto out; 5137bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 51389b7b9fccSAndy Adamson if (status) 51391da177e4SLinus Torvalds goto out; 5140bf269551SChuck Lever status = decode_putfh(xdr); 5141bf269551SChuck Lever if (status) 514216e42959STrond Myklebust goto out; 5143bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 5144bf269551SChuck Lever if (status) 514516e42959STrond Myklebust goto out; 5146bf269551SChuck Lever decode_getfattr(xdr, res->dir_attr, res->server, 514780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51481da177e4SLinus Torvalds out: 51491da177e4SLinus Torvalds return status; 51501da177e4SLinus Torvalds } 51511da177e4SLinus Torvalds 51521da177e4SLinus Torvalds /* 51531da177e4SLinus Torvalds * Decode RENAME response 51541da177e4SLinus Torvalds */ 5155bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5156bf269551SChuck Lever struct nfs_renameres *res) 51571da177e4SLinus Torvalds { 51581da177e4SLinus Torvalds struct compound_hdr hdr; 51591da177e4SLinus Torvalds int status; 51601da177e4SLinus Torvalds 5161bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 51629b7b9fccSAndy Adamson if (status) 51639b7b9fccSAndy Adamson goto out; 5164bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 51659b7b9fccSAndy Adamson if (status) 51661da177e4SLinus Torvalds goto out; 5167bf269551SChuck Lever status = decode_putfh(xdr); 5168bf269551SChuck Lever if (status) 51691da177e4SLinus Torvalds goto out; 5170bf269551SChuck Lever status = decode_savefh(xdr); 5171bf269551SChuck Lever if (status) 51721da177e4SLinus Torvalds goto out; 5173bf269551SChuck Lever status = decode_putfh(xdr); 5174bf269551SChuck Lever if (status) 51751da177e4SLinus Torvalds goto out; 5176bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 5177bf269551SChuck Lever if (status) 51786caf2c82STrond Myklebust goto out; 51796caf2c82STrond Myklebust /* Current FH is target directory */ 5180bf269551SChuck Lever if (decode_getfattr(xdr, res->new_fattr, res->server, 518180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 51826caf2c82STrond Myklebust goto out; 5183bf269551SChuck Lever status = decode_restorefh(xdr); 5184bf269551SChuck Lever if (status) 51856caf2c82STrond Myklebust goto out; 5186bf269551SChuck Lever decode_getfattr(xdr, res->old_fattr, res->server, 518780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51881da177e4SLinus Torvalds out: 51891da177e4SLinus Torvalds return status; 51901da177e4SLinus Torvalds } 51911da177e4SLinus Torvalds 51921da177e4SLinus Torvalds /* 51931da177e4SLinus Torvalds * Decode LINK response 51941da177e4SLinus Torvalds */ 5195bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5196bf269551SChuck Lever struct nfs4_link_res *res) 51971da177e4SLinus Torvalds { 51981da177e4SLinus Torvalds struct compound_hdr hdr; 51991da177e4SLinus Torvalds int status; 52001da177e4SLinus Torvalds 5201bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52029b7b9fccSAndy Adamson if (status) 52039b7b9fccSAndy Adamson goto out; 5204bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52059b7b9fccSAndy Adamson if (status) 52061da177e4SLinus Torvalds goto out; 5207bf269551SChuck Lever status = decode_putfh(xdr); 5208bf269551SChuck Lever if (status) 52091da177e4SLinus Torvalds goto out; 5210bf269551SChuck Lever status = decode_savefh(xdr); 5211bf269551SChuck Lever if (status) 52121da177e4SLinus Torvalds goto out; 5213bf269551SChuck Lever status = decode_putfh(xdr); 5214bf269551SChuck Lever if (status) 52151da177e4SLinus Torvalds goto out; 5216bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 5217bf269551SChuck Lever if (status) 521891ba2eeeSTrond Myklebust goto out; 521991ba2eeeSTrond Myklebust /* 522091ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 522191ba2eeeSTrond Myklebust * filehandle. 522291ba2eeeSTrond Myklebust */ 5223bf269551SChuck Lever if (decode_getfattr(xdr, res->dir_attr, res->server, 522480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 522591ba2eeeSTrond Myklebust goto out; 5226bf269551SChuck Lever status = decode_restorefh(xdr); 5227bf269551SChuck Lever if (status) 522891ba2eeeSTrond Myklebust goto out; 5229bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 523080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52311da177e4SLinus Torvalds out: 52321da177e4SLinus Torvalds return status; 52331da177e4SLinus Torvalds } 52341da177e4SLinus Torvalds 52351da177e4SLinus Torvalds /* 52361da177e4SLinus Torvalds * Decode CREATE response 52371da177e4SLinus Torvalds */ 5238bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5239bf269551SChuck Lever struct nfs4_create_res *res) 52401da177e4SLinus Torvalds { 52411da177e4SLinus Torvalds struct compound_hdr hdr; 52421da177e4SLinus Torvalds int status; 52431da177e4SLinus Torvalds 5244bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52459b7b9fccSAndy Adamson if (status) 52469b7b9fccSAndy Adamson goto out; 5247bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52489b7b9fccSAndy Adamson if (status) 52491da177e4SLinus Torvalds goto out; 5250bf269551SChuck Lever status = decode_putfh(xdr); 5251bf269551SChuck Lever if (status) 52521da177e4SLinus Torvalds goto out; 5253bf269551SChuck Lever status = decode_savefh(xdr); 5254bf269551SChuck Lever if (status) 525556ae19f3STrond Myklebust goto out; 5256bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 5257bf269551SChuck Lever if (status) 52581da177e4SLinus Torvalds goto out; 5259bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5260bf269551SChuck Lever if (status) 52611da177e4SLinus Torvalds goto out; 5262bf269551SChuck Lever if (decode_getfattr(xdr, res->fattr, res->server, 526380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 526456ae19f3STrond Myklebust goto out; 5265bf269551SChuck Lever status = decode_restorefh(xdr); 5266bf269551SChuck Lever if (status) 526756ae19f3STrond Myklebust goto out; 5268bf269551SChuck Lever decode_getfattr(xdr, res->dir_fattr, res->server, 526980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52701da177e4SLinus Torvalds out: 52711da177e4SLinus Torvalds return status; 52721da177e4SLinus Torvalds } 52731da177e4SLinus Torvalds 52741da177e4SLinus Torvalds /* 52751da177e4SLinus Torvalds * Decode SYMLINK response 52761da177e4SLinus Torvalds */ 5277bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5278bf269551SChuck Lever struct nfs4_create_res *res) 52791da177e4SLinus Torvalds { 5280bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 52811da177e4SLinus Torvalds } 52821da177e4SLinus Torvalds 52831da177e4SLinus Torvalds /* 52841da177e4SLinus Torvalds * Decode GETATTR response 52851da177e4SLinus Torvalds */ 5286bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5287bf269551SChuck Lever struct nfs4_getattr_res *res) 52881da177e4SLinus Torvalds { 52891da177e4SLinus Torvalds struct compound_hdr hdr; 52901da177e4SLinus Torvalds int status; 52911da177e4SLinus Torvalds 5292bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52931da177e4SLinus Torvalds if (status) 52941da177e4SLinus Torvalds goto out; 5295bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52969b7b9fccSAndy Adamson if (status) 52979b7b9fccSAndy Adamson goto out; 5298bf269551SChuck Lever status = decode_putfh(xdr); 52991da177e4SLinus Torvalds if (status) 53001da177e4SLinus Torvalds goto out; 5301bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server, 530280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53031da177e4SLinus Torvalds out: 53041da177e4SLinus Torvalds return status; 53051da177e4SLinus Torvalds } 53061da177e4SLinus Torvalds 530723ec6965SJ. Bruce Fields /* 530823ec6965SJ. Bruce Fields * Encode an SETACL request 530923ec6965SJ. Bruce Fields */ 53109f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 53119f06c719SChuck Lever struct nfs_setaclargs *args) 531223ec6965SJ. Bruce Fields { 531323ec6965SJ. Bruce Fields struct compound_hdr hdr = { 531466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 531523ec6965SJ. Bruce Fields }; 531623ec6965SJ. Bruce Fields 53179f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 53189f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 53199f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 53209f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 5321d017931cSAndy Adamson encode_nops(&hdr); 532223ec6965SJ. Bruce Fields } 532305d564feSAndy Adamson 532423ec6965SJ. Bruce Fields /* 532523ec6965SJ. Bruce Fields * Decode SETACL response 532623ec6965SJ. Bruce Fields */ 532723ec6965SJ. Bruce Fields static int 5328bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 532973c403a9SBenny Halevy struct nfs_setaclres *res) 533023ec6965SJ. Bruce Fields { 533123ec6965SJ. Bruce Fields struct compound_hdr hdr; 533223ec6965SJ. Bruce Fields int status; 533323ec6965SJ. Bruce Fields 5334bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 533523ec6965SJ. Bruce Fields if (status) 533623ec6965SJ. Bruce Fields goto out; 5337bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53389b7b9fccSAndy Adamson if (status) 53399b7b9fccSAndy Adamson goto out; 5340bf269551SChuck Lever status = decode_putfh(xdr); 534123ec6965SJ. Bruce Fields if (status) 534223ec6965SJ. Bruce Fields goto out; 5343bf269551SChuck Lever status = decode_setattr(xdr); 534423ec6965SJ. Bruce Fields out: 534523ec6965SJ. Bruce Fields return status; 534623ec6965SJ. Bruce Fields } 53471da177e4SLinus Torvalds 53481da177e4SLinus Torvalds /* 5349029d105eSJ. Bruce Fields * Decode GETACL response 5350029d105eSJ. Bruce Fields */ 5351029d105eSJ. Bruce Fields static int 5352bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5353663c79b3SBenny Halevy struct nfs_getaclres *res) 5354029d105eSJ. Bruce Fields { 5355029d105eSJ. Bruce Fields struct compound_hdr hdr; 5356029d105eSJ. Bruce Fields int status; 5357029d105eSJ. Bruce Fields 5358bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5359029d105eSJ. Bruce Fields if (status) 5360029d105eSJ. Bruce Fields goto out; 5361bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53629b7b9fccSAndy Adamson if (status) 53639b7b9fccSAndy Adamson goto out; 5364bf269551SChuck Lever status = decode_putfh(xdr); 5365029d105eSJ. Bruce Fields if (status) 5366029d105eSJ. Bruce Fields goto out; 5367bf269551SChuck Lever status = decode_getacl(xdr, rqstp, &res->acl_len); 5368029d105eSJ. Bruce Fields 5369029d105eSJ. Bruce Fields out: 5370029d105eSJ. Bruce Fields return status; 5371029d105eSJ. Bruce Fields } 5372029d105eSJ. Bruce Fields 5373029d105eSJ. Bruce Fields /* 53741da177e4SLinus Torvalds * Decode CLOSE response 53751da177e4SLinus Torvalds */ 5376bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5377bf269551SChuck Lever struct nfs_closeres *res) 53781da177e4SLinus Torvalds { 53791da177e4SLinus Torvalds struct compound_hdr hdr; 53801da177e4SLinus Torvalds int status; 53811da177e4SLinus Torvalds 5382bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 53831da177e4SLinus Torvalds if (status) 53841da177e4SLinus Torvalds goto out; 5385bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53869b7b9fccSAndy Adamson if (status) 53879b7b9fccSAndy Adamson goto out; 5388bf269551SChuck Lever status = decode_putfh(xdr); 53891da177e4SLinus Torvalds if (status) 53901da177e4SLinus Torvalds goto out; 5391bf269551SChuck Lever status = decode_close(xdr, res); 5392516a6af6STrond Myklebust if (status != 0) 5393516a6af6STrond Myklebust goto out; 5394516a6af6STrond Myklebust /* 5395516a6af6STrond Myklebust * Note: Server may do delete on close for this file 5396516a6af6STrond Myklebust * in which case the getattr call will fail with 5397516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 5398516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 5399516a6af6STrond Myklebust */ 5400bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 540180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54021da177e4SLinus Torvalds out: 54031da177e4SLinus Torvalds return status; 54041da177e4SLinus Torvalds } 54051da177e4SLinus Torvalds 54061da177e4SLinus Torvalds /* 54071da177e4SLinus Torvalds * Decode OPEN response 54081da177e4SLinus Torvalds */ 5409bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5410bf269551SChuck Lever struct nfs_openres *res) 54111da177e4SLinus Torvalds { 54121da177e4SLinus Torvalds struct compound_hdr hdr; 54131da177e4SLinus Torvalds int status; 54141da177e4SLinus Torvalds 5415bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54161da177e4SLinus Torvalds if (status) 54171da177e4SLinus Torvalds goto out; 5418bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 54199b7b9fccSAndy Adamson if (status) 54209b7b9fccSAndy Adamson goto out; 5421bf269551SChuck Lever status = decode_putfh(xdr); 54221da177e4SLinus Torvalds if (status) 54231da177e4SLinus Torvalds goto out; 5424bf269551SChuck Lever status = decode_savefh(xdr); 542556ae19f3STrond Myklebust if (status) 542656ae19f3STrond Myklebust goto out; 5427bf269551SChuck Lever status = decode_open(xdr, res); 54281da177e4SLinus Torvalds if (status) 54291da177e4SLinus Torvalds goto out; 5430bf269551SChuck Lever if (decode_getfh(xdr, &res->fh) != 0) 54311da177e4SLinus Torvalds goto out; 5432bf269551SChuck Lever if (decode_getfattr(xdr, res->f_attr, res->server, 543380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 543456ae19f3STrond Myklebust goto out; 5435bf269551SChuck Lever if (decode_restorefh(xdr) != 0) 543656ae19f3STrond Myklebust goto out; 5437bf269551SChuck Lever decode_getfattr(xdr, res->dir_attr, res->server, 543880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54391da177e4SLinus Torvalds out: 54401da177e4SLinus Torvalds return status; 54411da177e4SLinus Torvalds } 54421da177e4SLinus Torvalds 54431da177e4SLinus Torvalds /* 54441da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 54451da177e4SLinus Torvalds */ 5446bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 5447bf269551SChuck Lever struct xdr_stream *xdr, 5448bf269551SChuck Lever struct nfs_open_confirmres *res) 54491da177e4SLinus Torvalds { 54501da177e4SLinus Torvalds struct compound_hdr hdr; 54511da177e4SLinus Torvalds int status; 54521da177e4SLinus Torvalds 5453bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54541da177e4SLinus Torvalds if (status) 54551da177e4SLinus Torvalds goto out; 5456bf269551SChuck Lever status = decode_putfh(xdr); 54571da177e4SLinus Torvalds if (status) 54581da177e4SLinus Torvalds goto out; 5459bf269551SChuck Lever status = decode_open_confirm(xdr, res); 54601da177e4SLinus Torvalds out: 54611da177e4SLinus Torvalds return status; 54621da177e4SLinus Torvalds } 54631da177e4SLinus Torvalds 54641da177e4SLinus Torvalds /* 54651da177e4SLinus Torvalds * Decode OPEN response 54661da177e4SLinus Torvalds */ 5467bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 5468bf269551SChuck Lever struct xdr_stream *xdr, 5469bf269551SChuck Lever struct nfs_openres *res) 54701da177e4SLinus Torvalds { 54711da177e4SLinus Torvalds struct compound_hdr hdr; 54721da177e4SLinus Torvalds int status; 54731da177e4SLinus Torvalds 5474bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54751da177e4SLinus Torvalds if (status) 54761da177e4SLinus Torvalds goto out; 5477bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 54789b7b9fccSAndy Adamson if (status) 54799b7b9fccSAndy Adamson goto out; 5480bf269551SChuck Lever status = decode_putfh(xdr); 54811da177e4SLinus Torvalds if (status) 54821da177e4SLinus Torvalds goto out; 5483bf269551SChuck Lever status = decode_open(xdr, res); 5484864472e9STrond Myklebust if (status) 5485864472e9STrond Myklebust goto out; 5486bf269551SChuck Lever decode_getfattr(xdr, res->f_attr, res->server, 548780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54881da177e4SLinus Torvalds out: 54891da177e4SLinus Torvalds return status; 54901da177e4SLinus Torvalds } 54911da177e4SLinus Torvalds 54921da177e4SLinus Torvalds /* 54931da177e4SLinus Torvalds * Decode SETATTR response 54941da177e4SLinus Torvalds */ 5495bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 5496bf269551SChuck Lever struct xdr_stream *xdr, 5497bf269551SChuck Lever struct nfs_setattrres *res) 54981da177e4SLinus Torvalds { 54991da177e4SLinus Torvalds struct compound_hdr hdr; 55001da177e4SLinus Torvalds int status; 55011da177e4SLinus Torvalds 5502bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55031da177e4SLinus Torvalds if (status) 55041da177e4SLinus Torvalds goto out; 5505bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55069b7b9fccSAndy Adamson if (status) 55079b7b9fccSAndy Adamson goto out; 5508bf269551SChuck Lever status = decode_putfh(xdr); 55091da177e4SLinus Torvalds if (status) 55101da177e4SLinus Torvalds goto out; 5511bf269551SChuck Lever status = decode_setattr(xdr); 55121da177e4SLinus Torvalds if (status) 55131da177e4SLinus Torvalds goto out; 5514bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 551580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 55161da177e4SLinus Torvalds out: 55171da177e4SLinus Torvalds return status; 55181da177e4SLinus Torvalds } 55191da177e4SLinus Torvalds 55201da177e4SLinus Torvalds /* 55211da177e4SLinus Torvalds * Decode LOCK response 55221da177e4SLinus Torvalds */ 5523bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5524bf269551SChuck Lever struct nfs_lock_res *res) 55251da177e4SLinus Torvalds { 55261da177e4SLinus Torvalds struct compound_hdr hdr; 55271da177e4SLinus Torvalds int status; 55281da177e4SLinus Torvalds 5529bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55301da177e4SLinus Torvalds if (status) 55311da177e4SLinus Torvalds goto out; 5532bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55339b7b9fccSAndy Adamson if (status) 55349b7b9fccSAndy Adamson goto out; 5535bf269551SChuck Lever status = decode_putfh(xdr); 55361da177e4SLinus Torvalds if (status) 55371da177e4SLinus Torvalds goto out; 5538bf269551SChuck Lever status = decode_lock(xdr, res); 55391da177e4SLinus Torvalds out: 55401da177e4SLinus Torvalds return status; 55411da177e4SLinus Torvalds } 55421da177e4SLinus Torvalds 55431da177e4SLinus Torvalds /* 55441da177e4SLinus Torvalds * Decode LOCKT response 55451da177e4SLinus Torvalds */ 5546bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5547bf269551SChuck Lever struct nfs_lockt_res *res) 55481da177e4SLinus Torvalds { 55491da177e4SLinus Torvalds struct compound_hdr hdr; 55501da177e4SLinus Torvalds int status; 55511da177e4SLinus Torvalds 5552bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55531da177e4SLinus Torvalds if (status) 55541da177e4SLinus Torvalds goto out; 5555bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55569b7b9fccSAndy Adamson if (status) 55579b7b9fccSAndy Adamson goto out; 5558bf269551SChuck Lever status = decode_putfh(xdr); 55591da177e4SLinus Torvalds if (status) 55601da177e4SLinus Torvalds goto out; 5561bf269551SChuck Lever status = decode_lockt(xdr, res); 55621da177e4SLinus Torvalds out: 55631da177e4SLinus Torvalds return status; 55641da177e4SLinus Torvalds } 55651da177e4SLinus Torvalds 55661da177e4SLinus Torvalds /* 55671da177e4SLinus Torvalds * Decode LOCKU response 55681da177e4SLinus Torvalds */ 5569bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5570bf269551SChuck Lever struct nfs_locku_res *res) 55711da177e4SLinus Torvalds { 55721da177e4SLinus Torvalds struct compound_hdr hdr; 55731da177e4SLinus Torvalds int status; 55741da177e4SLinus Torvalds 5575bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55761da177e4SLinus Torvalds if (status) 55771da177e4SLinus Torvalds goto out; 5578bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55799b7b9fccSAndy Adamson if (status) 55809b7b9fccSAndy Adamson goto out; 5581bf269551SChuck Lever status = decode_putfh(xdr); 55821da177e4SLinus Torvalds if (status) 55831da177e4SLinus Torvalds goto out; 5584bf269551SChuck Lever status = decode_locku(xdr, res); 55851da177e4SLinus Torvalds out: 55861da177e4SLinus Torvalds return status; 55871da177e4SLinus Torvalds } 55881da177e4SLinus Torvalds 5589bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 5590bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 5591d3c7b7ccSTrond Myklebust { 5592d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 5593d3c7b7ccSTrond Myklebust int status; 5594d3c7b7ccSTrond Myklebust 5595bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5596d3c7b7ccSTrond Myklebust if (!status) 5597bf269551SChuck Lever status = decode_release_lockowner(xdr); 5598d3c7b7ccSTrond Myklebust return status; 5599d3c7b7ccSTrond Myklebust } 5600d3c7b7ccSTrond Myklebust 56011da177e4SLinus Torvalds /* 56021da177e4SLinus Torvalds * Decode READLINK response 56031da177e4SLinus Torvalds */ 5604bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 5605bf269551SChuck Lever struct xdr_stream *xdr, 5606f50c7000SBenny Halevy struct nfs4_readlink_res *res) 56071da177e4SLinus Torvalds { 56081da177e4SLinus Torvalds struct compound_hdr hdr; 56091da177e4SLinus Torvalds int status; 56101da177e4SLinus Torvalds 5611bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56121da177e4SLinus Torvalds if (status) 56131da177e4SLinus Torvalds goto out; 5614bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56159b7b9fccSAndy Adamson if (status) 56169b7b9fccSAndy Adamson goto out; 5617bf269551SChuck Lever status = decode_putfh(xdr); 56181da177e4SLinus Torvalds if (status) 56191da177e4SLinus Torvalds goto out; 5620bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 56211da177e4SLinus Torvalds out: 56221da177e4SLinus Torvalds return status; 56231da177e4SLinus Torvalds } 56241da177e4SLinus Torvalds 56251da177e4SLinus Torvalds /* 56261da177e4SLinus Torvalds * Decode READDIR response 56271da177e4SLinus Torvalds */ 5628bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5629bf269551SChuck Lever struct nfs4_readdir_res *res) 56301da177e4SLinus Torvalds { 56311da177e4SLinus Torvalds struct compound_hdr hdr; 56321da177e4SLinus Torvalds int status; 56331da177e4SLinus Torvalds 5634bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56351da177e4SLinus Torvalds if (status) 56361da177e4SLinus Torvalds goto out; 5637bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56389b7b9fccSAndy Adamson if (status) 56399b7b9fccSAndy Adamson goto out; 5640bf269551SChuck Lever status = decode_putfh(xdr); 56411da177e4SLinus Torvalds if (status) 56421da177e4SLinus Torvalds goto out; 5643bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 56441da177e4SLinus Torvalds out: 56451da177e4SLinus Torvalds return status; 56461da177e4SLinus Torvalds } 56471da177e4SLinus Torvalds 56481da177e4SLinus Torvalds /* 56491da177e4SLinus Torvalds * Decode Read response 56501da177e4SLinus Torvalds */ 5651bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5652bf269551SChuck Lever struct nfs_readres *res) 56531da177e4SLinus Torvalds { 56541da177e4SLinus Torvalds struct compound_hdr hdr; 56551da177e4SLinus Torvalds int status; 56561da177e4SLinus Torvalds 5657bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56581da177e4SLinus Torvalds if (status) 56591da177e4SLinus Torvalds goto out; 5660bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56619b7b9fccSAndy Adamson if (status) 56629b7b9fccSAndy Adamson goto out; 5663bf269551SChuck Lever status = decode_putfh(xdr); 56641da177e4SLinus Torvalds if (status) 56651da177e4SLinus Torvalds goto out; 5666bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 56671da177e4SLinus Torvalds if (!status) 56681da177e4SLinus Torvalds status = res->count; 56691da177e4SLinus Torvalds out: 56701da177e4SLinus Torvalds return status; 56711da177e4SLinus Torvalds } 56721da177e4SLinus Torvalds 56731da177e4SLinus Torvalds /* 56741da177e4SLinus Torvalds * Decode WRITE response 56751da177e4SLinus Torvalds */ 5676bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5677bf269551SChuck Lever struct nfs_writeres *res) 56781da177e4SLinus Torvalds { 56791da177e4SLinus Torvalds struct compound_hdr hdr; 56801da177e4SLinus Torvalds int status; 56811da177e4SLinus Torvalds 5682bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56831da177e4SLinus Torvalds if (status) 56841da177e4SLinus Torvalds goto out; 5685bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56869b7b9fccSAndy Adamson if (status) 56879b7b9fccSAndy Adamson goto out; 5688bf269551SChuck Lever status = decode_putfh(xdr); 56891da177e4SLinus Torvalds if (status) 56901da177e4SLinus Torvalds goto out; 5691bf269551SChuck Lever status = decode_write(xdr, res); 56924f9838c7STrond Myklebust if (status) 56934f9838c7STrond Myklebust goto out; 5694bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 569580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 56961da177e4SLinus Torvalds if (!status) 56971da177e4SLinus Torvalds status = res->count; 56981da177e4SLinus Torvalds out: 56991da177e4SLinus Torvalds return status; 57001da177e4SLinus Torvalds } 57011da177e4SLinus Torvalds 57021da177e4SLinus Torvalds /* 57031da177e4SLinus Torvalds * Decode COMMIT response 57041da177e4SLinus Torvalds */ 5705bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5706bf269551SChuck Lever struct nfs_writeres *res) 57071da177e4SLinus Torvalds { 57081da177e4SLinus Torvalds struct compound_hdr hdr; 57091da177e4SLinus Torvalds int status; 57101da177e4SLinus Torvalds 5711bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57121da177e4SLinus Torvalds if (status) 57131da177e4SLinus Torvalds goto out; 5714bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57159b7b9fccSAndy Adamson if (status) 57169b7b9fccSAndy Adamson goto out; 5717bf269551SChuck Lever status = decode_putfh(xdr); 57181da177e4SLinus Torvalds if (status) 57191da177e4SLinus Torvalds goto out; 5720bf269551SChuck Lever status = decode_commit(xdr, res); 57214f9838c7STrond Myklebust if (status) 57224f9838c7STrond Myklebust goto out; 5723bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 572480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 57251da177e4SLinus Torvalds out: 57261da177e4SLinus Torvalds return status; 57271da177e4SLinus Torvalds } 57281da177e4SLinus Torvalds 57291da177e4SLinus Torvalds /* 57308b173218SRicardo Labiaga * Decode FSINFO response 57311da177e4SLinus Torvalds */ 5732bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 57333dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 57341da177e4SLinus Torvalds { 57351da177e4SLinus Torvalds struct compound_hdr hdr; 57361da177e4SLinus Torvalds int status; 57371da177e4SLinus Torvalds 5738bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57391da177e4SLinus Torvalds if (!status) 5740bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57419b7b9fccSAndy Adamson if (!status) 5742bf269551SChuck Lever status = decode_putfh(xdr); 57431da177e4SLinus Torvalds if (!status) 5744bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 57451da177e4SLinus Torvalds return status; 57461da177e4SLinus Torvalds } 57471da177e4SLinus Torvalds 57481da177e4SLinus Torvalds /* 57498b173218SRicardo Labiaga * Decode PATHCONF response 57501da177e4SLinus Torvalds */ 5751bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 5752d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 57531da177e4SLinus Torvalds { 57541da177e4SLinus Torvalds struct compound_hdr hdr; 57551da177e4SLinus Torvalds int status; 57561da177e4SLinus Torvalds 5757bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57581da177e4SLinus Torvalds if (!status) 5759bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57609b7b9fccSAndy Adamson if (!status) 5761bf269551SChuck Lever status = decode_putfh(xdr); 57621da177e4SLinus Torvalds if (!status) 5763bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 57641da177e4SLinus Torvalds return status; 57651da177e4SLinus Torvalds } 57661da177e4SLinus Torvalds 57671da177e4SLinus Torvalds /* 57688b173218SRicardo Labiaga * Decode STATFS response 57691da177e4SLinus Torvalds */ 5770bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 577124ad148aSBenny Halevy struct nfs4_statfs_res *res) 57721da177e4SLinus Torvalds { 57731da177e4SLinus Torvalds struct compound_hdr hdr; 57741da177e4SLinus Torvalds int status; 57751da177e4SLinus Torvalds 5776bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57771da177e4SLinus Torvalds if (!status) 5778bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57799b7b9fccSAndy Adamson if (!status) 5780bf269551SChuck Lever status = decode_putfh(xdr); 57811da177e4SLinus Torvalds if (!status) 5782bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 57831da177e4SLinus Torvalds return status; 57841da177e4SLinus Torvalds } 57851da177e4SLinus Torvalds 57861da177e4SLinus Torvalds /* 57878b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 57881da177e4SLinus Torvalds */ 5789bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 5790bf269551SChuck Lever struct xdr_stream *xdr, 5791bf269551SChuck Lever struct nfs4_server_caps_res *res) 57921da177e4SLinus Torvalds { 57931da177e4SLinus Torvalds struct compound_hdr hdr; 57941da177e4SLinus Torvalds int status; 57951da177e4SLinus Torvalds 5796bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57979b7b9fccSAndy Adamson if (status) 57989b7b9fccSAndy Adamson goto out; 5799bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 58009b7b9fccSAndy Adamson if (status) 58011da177e4SLinus Torvalds goto out; 5802bf269551SChuck Lever status = decode_putfh(xdr); 5803bf269551SChuck Lever if (status) 58041da177e4SLinus Torvalds goto out; 5805bf269551SChuck Lever status = decode_server_caps(xdr, res); 58061da177e4SLinus Torvalds out: 58071da177e4SLinus Torvalds return status; 58081da177e4SLinus Torvalds } 58091da177e4SLinus Torvalds 58101da177e4SLinus Torvalds /* 58111da177e4SLinus Torvalds * Decode RENEW response 58121da177e4SLinus Torvalds */ 5813bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5814bf269551SChuck Lever void *__unused) 58151da177e4SLinus Torvalds { 58161da177e4SLinus Torvalds struct compound_hdr hdr; 58171da177e4SLinus Torvalds int status; 58181da177e4SLinus Torvalds 5819bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58201da177e4SLinus Torvalds if (!status) 5821bf269551SChuck Lever status = decode_renew(xdr); 58221da177e4SLinus Torvalds return status; 58231da177e4SLinus Torvalds } 58241da177e4SLinus Torvalds 58251da177e4SLinus Torvalds /* 58268b173218SRicardo Labiaga * Decode SETCLIENTID response 58271da177e4SLinus Torvalds */ 5828bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 5829bf269551SChuck Lever struct xdr_stream *xdr, 5830bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 58311da177e4SLinus Torvalds { 58321da177e4SLinus Torvalds struct compound_hdr hdr; 58331da177e4SLinus Torvalds int status; 58341da177e4SLinus Torvalds 5835bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58361da177e4SLinus Torvalds if (!status) 5837bf269551SChuck Lever status = decode_setclientid(xdr, res); 58381da177e4SLinus Torvalds return status; 58391da177e4SLinus Torvalds } 58401da177e4SLinus Torvalds 58411da177e4SLinus Torvalds /* 58428b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 58431da177e4SLinus Torvalds */ 5844bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 5845bf269551SChuck Lever struct xdr_stream *xdr, 5846bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 58471da177e4SLinus Torvalds { 58481da177e4SLinus Torvalds struct compound_hdr hdr; 58491da177e4SLinus Torvalds int status; 58501da177e4SLinus Torvalds 5851bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58521da177e4SLinus Torvalds if (!status) 5853bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 58541da177e4SLinus Torvalds if (!status) 5855bf269551SChuck Lever status = decode_putrootfh(xdr); 58561da177e4SLinus Torvalds if (!status) 5857bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 58581da177e4SLinus Torvalds return status; 58591da177e4SLinus Torvalds } 58601da177e4SLinus Torvalds 58611da177e4SLinus Torvalds /* 58628b173218SRicardo Labiaga * Decode DELEGRETURN response 58631da177e4SLinus Torvalds */ 5864bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 5865bf269551SChuck Lever struct xdr_stream *xdr, 5866bf269551SChuck Lever struct nfs4_delegreturnres *res) 58671da177e4SLinus Torvalds { 58681da177e4SLinus Torvalds struct compound_hdr hdr; 58691da177e4SLinus Torvalds int status; 58701da177e4SLinus Torvalds 5871bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58729b7b9fccSAndy Adamson if (status) 58739b7b9fccSAndy Adamson goto out; 5874bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58759b7b9fccSAndy Adamson if (status) 5876fa178f29STrond Myklebust goto out; 5877bf269551SChuck Lever status = decode_putfh(xdr); 5878fa178f29STrond Myklebust if (status != 0) 5879fa178f29STrond Myklebust goto out; 5880bf269551SChuck Lever status = decode_delegreturn(xdr); 5881556ae3bbSJeff Layton if (status != 0) 5882556ae3bbSJeff Layton goto out; 5883bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 588480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 5885fa178f29STrond Myklebust out: 58861da177e4SLinus Torvalds return status; 58871da177e4SLinus Torvalds } 58881da177e4SLinus Torvalds 5889683b57b4STrond Myklebust /* 58908b173218SRicardo Labiaga * Decode FS_LOCATIONS response 5891683b57b4STrond Myklebust */ 5892bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 5893bf269551SChuck Lever struct xdr_stream *xdr, 589422958463SBenny Halevy struct nfs4_fs_locations_res *res) 5895683b57b4STrond Myklebust { 5896683b57b4STrond Myklebust struct compound_hdr hdr; 5897683b57b4STrond Myklebust int status; 5898683b57b4STrond Myklebust 5899bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59009b7b9fccSAndy Adamson if (status) 59019b7b9fccSAndy Adamson goto out; 5902bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 59039b7b9fccSAndy Adamson if (status) 5904683b57b4STrond Myklebust goto out; 5905bf269551SChuck Lever status = decode_putfh(xdr); 5906bf269551SChuck Lever if (status) 5907683b57b4STrond Myklebust goto out; 5908bf269551SChuck Lever status = decode_lookup(xdr); 5909bf269551SChuck Lever if (status) 5910683b57b4STrond Myklebust goto out; 5911bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 5912bf269551SChuck Lever status = decode_getfattr(xdr, &res->fs_locations->fattr, 591380e52aceSTrond Myklebust res->fs_locations->server, 591480e52aceSTrond Myklebust !RPC_IS_ASYNC(req->rq_task)); 5915683b57b4STrond Myklebust out: 5916683b57b4STrond Myklebust return status; 5917683b57b4STrond Myklebust } 5918683b57b4STrond Myklebust 591999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 592099fe60d0SBenny Halevy /* 59218b173218SRicardo Labiaga * Decode EXCHANGE_ID response 592299fe60d0SBenny Halevy */ 5923bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 5924bf269551SChuck Lever struct xdr_stream *xdr, 592599fe60d0SBenny Halevy void *res) 592699fe60d0SBenny Halevy { 592799fe60d0SBenny Halevy struct compound_hdr hdr; 592899fe60d0SBenny Halevy int status; 592999fe60d0SBenny Halevy 5930bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 593199fe60d0SBenny Halevy if (!status) 5932bf269551SChuck Lever status = decode_exchange_id(xdr, res); 593399fe60d0SBenny Halevy return status; 593499fe60d0SBenny Halevy } 59352050f0ccSAndy Adamson 59362050f0ccSAndy Adamson /* 59378b173218SRicardo Labiaga * Decode CREATE_SESSION response 5938fc931582SAndy Adamson */ 5939bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 5940bf269551SChuck Lever struct xdr_stream *xdr, 5941fc931582SAndy Adamson struct nfs41_create_session_res *res) 5942fc931582SAndy Adamson { 5943fc931582SAndy Adamson struct compound_hdr hdr; 5944fc931582SAndy Adamson int status; 5945fc931582SAndy Adamson 5946bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5947fc931582SAndy Adamson if (!status) 5948bf269551SChuck Lever status = decode_create_session(xdr, res); 5949fc931582SAndy Adamson return status; 5950fc931582SAndy Adamson } 5951fc931582SAndy Adamson 5952fc931582SAndy Adamson /* 59538b173218SRicardo Labiaga * Decode DESTROY_SESSION response 59540f3e66c6SAndy Adamson */ 5955bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 5956bf269551SChuck Lever struct xdr_stream *xdr, 5957bf269551SChuck Lever void *res) 59580f3e66c6SAndy Adamson { 59590f3e66c6SAndy Adamson struct compound_hdr hdr; 59600f3e66c6SAndy Adamson int status; 59610f3e66c6SAndy Adamson 5962bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59630f3e66c6SAndy Adamson if (!status) 5964bf269551SChuck Lever status = decode_destroy_session(xdr, res); 59650f3e66c6SAndy Adamson return status; 59660f3e66c6SAndy Adamson } 59670f3e66c6SAndy Adamson 59680f3e66c6SAndy Adamson /* 59698b173218SRicardo Labiaga * Decode SEQUENCE response 5970fc01cea9SAndy Adamson */ 5971bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 5972bf269551SChuck Lever struct xdr_stream *xdr, 5973fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5974fc01cea9SAndy Adamson { 5975fc01cea9SAndy Adamson struct compound_hdr hdr; 5976fc01cea9SAndy Adamson int status; 5977fc01cea9SAndy Adamson 5978bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5979fc01cea9SAndy Adamson if (!status) 5980bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 5981fc01cea9SAndy Adamson return status; 5982fc01cea9SAndy Adamson } 5983fc01cea9SAndy Adamson 5984fc01cea9SAndy Adamson /* 59858b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 59862050f0ccSAndy Adamson */ 5987bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 5988bf269551SChuck Lever struct xdr_stream *xdr, 59892050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 59902050f0ccSAndy Adamson { 59912050f0ccSAndy Adamson struct compound_hdr hdr; 59922050f0ccSAndy Adamson int status; 59932050f0ccSAndy Adamson 5994bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59952050f0ccSAndy Adamson if (!status) 5996bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 59972050f0ccSAndy Adamson if (!status) 5998bf269551SChuck Lever status = decode_putrootfh(xdr); 59992050f0ccSAndy Adamson if (!status) 6000bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 60012050f0ccSAndy Adamson return status; 60022050f0ccSAndy Adamson } 600318019753SRicardo Labiaga 600418019753SRicardo Labiaga /* 600518019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 600618019753SRicardo Labiaga */ 6007bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6008bf269551SChuck Lever struct xdr_stream *xdr, 600918019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 601018019753SRicardo Labiaga { 601118019753SRicardo Labiaga struct compound_hdr hdr; 601218019753SRicardo Labiaga int status; 601318019753SRicardo Labiaga 6014bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 601518019753SRicardo Labiaga if (!status) 6016bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 601718019753SRicardo Labiaga if (!status) 6018bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 601918019753SRicardo Labiaga return status; 602018019753SRicardo Labiaga } 6021b1f69b75SAndy Adamson 6022b1f69b75SAndy Adamson /* 6023b1f69b75SAndy Adamson * Decode GETDEVINFO response 6024b1f69b75SAndy Adamson */ 6025bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6026bf269551SChuck Lever struct xdr_stream *xdr, 6027b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6028b1f69b75SAndy Adamson { 6029b1f69b75SAndy Adamson struct compound_hdr hdr; 6030b1f69b75SAndy Adamson int status; 6031b1f69b75SAndy Adamson 6032bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6033b1f69b75SAndy Adamson if (status != 0) 6034b1f69b75SAndy Adamson goto out; 6035bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6036b1f69b75SAndy Adamson if (status != 0) 6037b1f69b75SAndy Adamson goto out; 6038bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6039b1f69b75SAndy Adamson out: 6040b1f69b75SAndy Adamson return status; 6041b1f69b75SAndy Adamson } 6042b1f69b75SAndy Adamson 6043b1f69b75SAndy Adamson /* 6044b1f69b75SAndy Adamson * Decode LAYOUTGET response 6045b1f69b75SAndy Adamson */ 6046bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6047bf269551SChuck Lever struct xdr_stream *xdr, 6048b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6049b1f69b75SAndy Adamson { 6050b1f69b75SAndy Adamson struct compound_hdr hdr; 6051b1f69b75SAndy Adamson int status; 6052b1f69b75SAndy Adamson 6053bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6054b1f69b75SAndy Adamson if (status) 6055b1f69b75SAndy Adamson goto out; 6056bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6057b1f69b75SAndy Adamson if (status) 6058b1f69b75SAndy Adamson goto out; 6059bf269551SChuck Lever status = decode_putfh(xdr); 6060b1f69b75SAndy Adamson if (status) 6061b1f69b75SAndy Adamson goto out; 6062bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6063b1f69b75SAndy Adamson out: 6064b1f69b75SAndy Adamson return status; 6065b1f69b75SAndy Adamson } 606699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 606799fe60d0SBenny Halevy 6068573c4e1eSChuck Lever /** 6069573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 6070573c4e1eSChuck Lever * the local page cache. 6071573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 6072573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 6073573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 6074573c4e1eSChuck Lever * 6075573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 6076573c4e1eSChuck Lever * returned. 6077573c4e1eSChuck Lever * 6078573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 6079573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 6080573c4e1eSChuck Lever * on a directory already in our cache. 6081573c4e1eSChuck Lever */ 6082573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 6083573c4e1eSChuck Lever int plus) 60841da177e4SLinus Torvalds { 60851da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 60861da177e4SLinus Torvalds uint32_t len; 6087babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 6088babddc72SBryan Schumaker if (unlikely(!p)) 6089babddc72SBryan Schumaker goto out_overflow; 6090babddc72SBryan Schumaker if (!ntohl(*p++)) { 6091babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 6092babddc72SBryan Schumaker if (unlikely(!p)) 6093babddc72SBryan Schumaker goto out_overflow; 6094babddc72SBryan Schumaker if (!ntohl(*p++)) 6095573c4e1eSChuck Lever return -EAGAIN; 60961da177e4SLinus Torvalds entry->eof = 1; 6097573c4e1eSChuck Lever return -EBADCOOKIE; 60981da177e4SLinus Torvalds } 60991da177e4SLinus Torvalds 6100babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 6101babddc72SBryan Schumaker if (unlikely(!p)) 6102babddc72SBryan Schumaker goto out_overflow; 61031da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 61041da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 61051da177e4SLinus Torvalds entry->len = ntohl(*p++); 6106babddc72SBryan Schumaker 61079af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 6108babddc72SBryan Schumaker if (unlikely(!p)) 6109babddc72SBryan Schumaker goto out_overflow; 61101da177e4SLinus Torvalds entry->name = (const char *) p; 61111da177e4SLinus Torvalds 61121da177e4SLinus Torvalds /* 61131da177e4SLinus Torvalds * In case the server doesn't return an inode number, 61141da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 61151da177e4SLinus Torvalds * since glibc seems to choke on it...) 61161da177e4SLinus Torvalds */ 61171da177e4SLinus Torvalds entry->ino = 1; 61184f082222STrond Myklebust entry->fattr->valid = 0; 61191da177e4SLinus Torvalds 61209af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 6121babddc72SBryan Schumaker goto out_overflow; 61229af8c222STrond Myklebust 61239af8c222STrond Myklebust if (decode_attr_length(xdr, &len, &p) < 0) 6124babddc72SBryan Schumaker goto out_overflow; 61259af8c222STrond Myklebust 6126573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 6127573c4e1eSChuck Lever entry->server, 1) < 0) 6128babddc72SBryan Schumaker goto out_overflow; 612982f2e547SBryan Schumaker if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 613082f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 61319af8c222STrond Myklebust 61320b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 61330b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 61340b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 61350b26a0bfSTrond Myklebust 61369af8c222STrond Myklebust if (verify_attr_len(xdr, p, len) < 0) 61379af8c222STrond Myklebust goto out_overflow; 61381da177e4SLinus Torvalds 6139babddc72SBryan Schumaker p = xdr_inline_peek(xdr, 8); 6140babddc72SBryan Schumaker if (p != NULL) 61411da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 6142babddc72SBryan Schumaker else 6143babddc72SBryan Schumaker entry->eof = 0; 6144babddc72SBryan Schumaker 6145573c4e1eSChuck Lever return 0; 6146babddc72SBryan Schumaker 6147babddc72SBryan Schumaker out_overflow: 6148babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 6149573c4e1eSChuck Lever return -EAGAIN; 61501da177e4SLinus Torvalds } 61511da177e4SLinus Torvalds 61521da177e4SLinus Torvalds /* 61531da177e4SLinus Torvalds * We need to translate between nfs status return values and 61541da177e4SLinus Torvalds * the local errno values which may not be the same. 61551da177e4SLinus Torvalds */ 61561da177e4SLinus Torvalds static struct { 61571da177e4SLinus Torvalds int stat; 61581da177e4SLinus Torvalds int errno; 61591da177e4SLinus Torvalds } nfs_errtbl[] = { 61601da177e4SLinus Torvalds { NFS4_OK, 0 }, 6161856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 6162856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 6163856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 6164856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 6165856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 6166856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 6167856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 6168856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 6169856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 6170856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 6171856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 6172856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 6173856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 6174856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 6175856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 6176856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 6177856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 6178856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 6179856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 6180856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 6181856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 6182856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 6183856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 6184856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 6185fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 6186856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 6187856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 6188856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 6189856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 6190856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 6191856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 61921da177e4SLinus Torvalds * to be handled by a 61931da177e4SLinus Torvalds * middle-layer. 61941da177e4SLinus Torvalds */ 6195856dff3dSBenny Halevy { -1, -EIO } 61961da177e4SLinus Torvalds }; 61971da177e4SLinus Torvalds 61981da177e4SLinus Torvalds /* 61991da177e4SLinus Torvalds * Convert an NFS error code to a local one. 62001da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 62011da177e4SLinus Torvalds */ 62021da177e4SLinus Torvalds static int 62030a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 62041da177e4SLinus Torvalds { 62051da177e4SLinus Torvalds int i; 62061da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 62071da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 62081da177e4SLinus Torvalds return nfs_errtbl[i].errno; 62091da177e4SLinus Torvalds } 62101da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 62111da177e4SLinus Torvalds /* The server is looney tunes. */ 6212fdcb4577STrond Myklebust return -EREMOTEIO; 62131da177e4SLinus Torvalds } 62141da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 62151da177e4SLinus Torvalds * handle it. 62161da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 62171da177e4SLinus Torvalds * not conflict with native Linux error codes. 62181da177e4SLinus Torvalds */ 6219856dff3dSBenny Halevy return -stat; 62201da177e4SLinus Torvalds } 62211da177e4SLinus Torvalds 62221da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 62231da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 62241da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 62259f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 6226bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 62272bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 62282bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 6229cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 6230cc0175c1SChuck Lever .p_name = #proc, \ 62311da177e4SLinus Torvalds } 62321da177e4SLinus Torvalds 62331da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 62341da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 62351da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 62361da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 62371da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 62381da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 62391da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 62401da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 62411da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 62421da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 62431da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 62441da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 62451da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 62461da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 62471da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 62481da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 62491da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 62501da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 62511da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 62521da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 62531da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 62541da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 62551da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 62561da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 62571da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 62581da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 62591da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 62601da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 62611da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 62621da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 62631da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 62641da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 6265029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 626623ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 6267683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 6268d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 626999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 627099fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 6271fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 62720f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 6273fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 62742050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 627518019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 6276b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 6277b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 627899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 62791da177e4SLinus Torvalds }; 62801da177e4SLinus Torvalds 62811da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 62821da177e4SLinus Torvalds .number = 4, 6283e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 62841da177e4SLinus Torvalds .procs = nfs4_procedures 62851da177e4SLinus Torvalds }; 62861da177e4SLinus Torvalds 62871da177e4SLinus Torvalds /* 62881da177e4SLinus Torvalds * Local variables: 62891da177e4SLinus Torvalds * c-basic-offset: 8 62901da177e4SLinus Torvalds * End: 62911da177e4SLinus Torvalds */ 6292