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 */ 74d035c36cSTrond Myklebust #define open_owner_id_maxsz (1 + 1 + 4) 75d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 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 1091d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1092daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1093d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1094daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1095d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1096daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1097daccbdedSTrond Myklebust } 1098daccbdedSTrond Myklebust 10991da177e4SLinus Torvalds /* 11001da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 11011da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 11021da177e4SLinus Torvalds */ 1103cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 11041da177e4SLinus Torvalds { 11058687b63aSAl Viro __be32 *p; 11061da177e4SLinus Torvalds 110713c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1108e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1109e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1110e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1111b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1112b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 111334558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1114911d1aafSTrond Myklebust if (args->new_lock_owner){ 1115daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1116e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 111793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1118e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1119daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 11201da177e4SLinus Torvalds } 11211da177e4SLinus Torvalds else { 112213c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 112393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 112434558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 11251da177e4SLinus Torvalds } 1126d017931cSAndy Adamson hdr->nops++; 1127dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 11281da177e4SLinus Torvalds } 11291da177e4SLinus Torvalds 1130cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 11311da177e4SLinus Torvalds { 11328687b63aSAl Viro __be32 *p; 11331da177e4SLinus Torvalds 1134daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1135e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1136e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1137b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1138b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1139daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1140d017931cSAndy Adamson hdr->nops++; 1141dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 11421da177e4SLinus Torvalds } 11431da177e4SLinus Torvalds 1144cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 11451da177e4SLinus Torvalds { 11468687b63aSAl Viro __be32 *p; 11471da177e4SLinus Torvalds 114813c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1149e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1150e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1151e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 115293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1153b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 115434558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1155d017931cSAndy Adamson hdr->nops++; 1156dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11571da177e4SLinus Torvalds } 11581da177e4SLinus Torvalds 1159d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1160d3c7b7ccSTrond Myklebust { 1161d3c7b7ccSTrond Myklebust __be32 *p; 1162d3c7b7ccSTrond Myklebust 1163d3c7b7ccSTrond Myklebust p = reserve_space(xdr, 4); 1164d3c7b7ccSTrond Myklebust *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); 1165d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1166d3c7b7ccSTrond Myklebust hdr->nops++; 1167d3c7b7ccSTrond Myklebust hdr->replen += decode_release_lockowner_maxsz; 1168d3c7b7ccSTrond Myklebust } 1169d3c7b7ccSTrond Myklebust 1170cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11711da177e4SLinus Torvalds { 11721da177e4SLinus Torvalds int len = name->len; 11738687b63aSAl Viro __be32 *p; 11741da177e4SLinus Torvalds 117513c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1176e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1177811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1178d017931cSAndy Adamson hdr->nops++; 1179dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11801da177e4SLinus Torvalds } 11811da177e4SLinus Torvalds 1182dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11831da177e4SLinus Torvalds { 11848687b63aSAl Viro __be32 *p; 11851da177e4SLinus Torvalds 118613c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1187dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11881da177e4SLinus Torvalds case FMODE_READ: 1189e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11901da177e4SLinus Torvalds break; 11911da177e4SLinus Torvalds case FMODE_WRITE: 1192e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11931da177e4SLinus Torvalds break; 11941da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1195e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11961da177e4SLinus Torvalds break; 11971da177e4SLinus Torvalds default: 1198e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11991da177e4SLinus Torvalds } 120034558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 12011da177e4SLinus Torvalds } 12021da177e4SLinus Torvalds 12031da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12041da177e4SLinus Torvalds { 12058687b63aSAl Viro __be32 *p; 12061da177e4SLinus Torvalds /* 12071da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 12081da177e4SLinus Torvalds * owner 4 = 32 12091da177e4SLinus Torvalds */ 121013c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1211e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 121234558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1213dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1214d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1215b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1216d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 121793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1218d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 121934558513SBenny Halevy xdr_encode_hyper(p, arg->id); 12201da177e4SLinus Torvalds } 12211da177e4SLinus Torvalds 12221da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12231da177e4SLinus Torvalds { 12248687b63aSAl Viro __be32 *p; 12254882ef72SAlexandros Batsakis struct nfs_client *clp; 12261da177e4SLinus Torvalds 122713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12281da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 12291da177e4SLinus Torvalds case 0: 123034558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 12311da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 12321da177e4SLinus Torvalds break; 12331da177e4SLinus Torvalds default: 12344882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1235a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 12364882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 12374882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 12384882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 12394882ef72SAlexandros Batsakis } else { 12404882ef72SAlexandros Batsakis struct iattr dummy; 12414882ef72SAlexandros Batsakis 12424882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 12434882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 12444882ef72SAlexandros Batsakis dummy.ia_valid = 0; 12454882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 12464882ef72SAlexandros Batsakis } 12474882ef72SAlexandros Batsakis } else { 124834558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 12491da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 12501da177e4SLinus Torvalds } 12511da177e4SLinus Torvalds } 12524882ef72SAlexandros Batsakis } 12531da177e4SLinus Torvalds 12541da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12551da177e4SLinus Torvalds { 12568687b63aSAl Viro __be32 *p; 12571da177e4SLinus Torvalds 125813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12591da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 12601da177e4SLinus Torvalds case 0: 126134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 12621da177e4SLinus Torvalds break; 12631da177e4SLinus Torvalds default: 12641da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 126534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 12661da177e4SLinus Torvalds encode_createmode(xdr, arg); 12671da177e4SLinus Torvalds } 12681da177e4SLinus Torvalds } 12691da177e4SLinus Torvalds 1270bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 12711da177e4SLinus Torvalds { 12728687b63aSAl Viro __be32 *p; 12731da177e4SLinus Torvalds 127413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12751da177e4SLinus Torvalds switch (delegation_type) { 12761da177e4SLinus Torvalds case 0: 127734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 12781da177e4SLinus Torvalds break; 12791da177e4SLinus Torvalds case FMODE_READ: 128034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 12811da177e4SLinus Torvalds break; 12821da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 128334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 12841da177e4SLinus Torvalds break; 12851da177e4SLinus Torvalds default: 12861da177e4SLinus Torvalds BUG(); 12871da177e4SLinus Torvalds } 12881da177e4SLinus Torvalds } 12891da177e4SLinus Torvalds 12901da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12911da177e4SLinus Torvalds { 12928687b63aSAl Viro __be32 *p; 12931da177e4SLinus Torvalds 129413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 129534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 12961da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12971da177e4SLinus Torvalds } 12981da177e4SLinus Torvalds 1299bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 13001da177e4SLinus Torvalds { 13018687b63aSAl Viro __be32 *p; 13021da177e4SLinus Torvalds 130313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 130434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 13051da177e4SLinus Torvalds encode_delegation_type(xdr, type); 13061da177e4SLinus Torvalds } 13071da177e4SLinus Torvalds 13081da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 13091da177e4SLinus Torvalds { 13108687b63aSAl Viro __be32 *p; 13111da177e4SLinus Torvalds 131213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1313e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 131434558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 13151da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 13161da177e4SLinus Torvalds } 13171da177e4SLinus Torvalds 1318cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 13191da177e4SLinus Torvalds { 13201da177e4SLinus Torvalds encode_openhdr(xdr, arg); 13211da177e4SLinus Torvalds encode_opentype(xdr, arg); 13221da177e4SLinus Torvalds switch (arg->claim) { 13231da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 13241da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 13251da177e4SLinus Torvalds break; 13261da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 13271da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 13281da177e4SLinus Torvalds break; 13291da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 13301da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 13311da177e4SLinus Torvalds break; 13321da177e4SLinus Torvalds default: 13331da177e4SLinus Torvalds BUG(); 13341da177e4SLinus Torvalds } 1335d017931cSAndy Adamson hdr->nops++; 1336dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 13371da177e4SLinus Torvalds } 13381da177e4SLinus Torvalds 1339cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 13401da177e4SLinus Torvalds { 13418687b63aSAl Viro __be32 *p; 13421da177e4SLinus Torvalds 134313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1344e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 134593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 134634558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1347d017931cSAndy Adamson hdr->nops++; 1348dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 13491da177e4SLinus Torvalds } 13501da177e4SLinus Torvalds 1351cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 13521da177e4SLinus Torvalds { 13538687b63aSAl Viro __be32 *p; 13541da177e4SLinus Torvalds 135513c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1356e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 135793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 135834558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1359dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1360d017931cSAndy Adamson hdr->nops++; 1361dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 13621da177e4SLinus Torvalds } 13631da177e4SLinus Torvalds 1364cf8cdbe5SAndy Adamson static void 1365d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 13661da177e4SLinus Torvalds { 13671da177e4SLinus Torvalds int len = fh->size; 13688687b63aSAl Viro __be32 *p; 13691da177e4SLinus Torvalds 137013c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1371e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1372811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1373d017931cSAndy Adamson hdr->nops++; 1374dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 13751da177e4SLinus Torvalds } 13761da177e4SLinus Torvalds 1377cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 13781da177e4SLinus Torvalds { 13798687b63aSAl Viro __be32 *p; 13801da177e4SLinus Torvalds 138113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 138234558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1383d017931cSAndy Adamson hdr->nops++; 1384dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13851da177e4SLinus Torvalds } 13861da177e4SLinus Torvalds 1387f11ac8dbSTrond Myklebust static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx) 13881da177e4SLinus Torvalds { 13891da177e4SLinus Torvalds nfs4_stateid stateid; 13908687b63aSAl Viro __be32 *p; 13911da177e4SLinus Torvalds 139213c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 13931da177e4SLinus Torvalds if (ctx->state != NULL) { 139477041ed9STrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); 139534558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 13961da177e4SLinus Torvalds } else 139734558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 13981da177e4SLinus Torvalds } 13991da177e4SLinus Torvalds 1400cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 14011da177e4SLinus Torvalds { 14028687b63aSAl Viro __be32 *p; 14031da177e4SLinus Torvalds 140413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 140534558513SBenny Halevy *p = cpu_to_be32(OP_READ); 14061da177e4SLinus Torvalds 1407f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 14081da177e4SLinus Torvalds 140913c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1410b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 141134558513SBenny Halevy *p = cpu_to_be32(args->count); 1412d017931cSAndy Adamson hdr->nops++; 1413dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 14141da177e4SLinus Torvalds } 14151da177e4SLinus Torvalds 1416cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 14171da177e4SLinus Torvalds { 141882f2e547SBryan Schumaker uint32_t attrs[2] = {0, 0}; 14196f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 14208687b63aSAl Viro __be32 *p; 14211da177e4SLinus Torvalds 142282f2e547SBryan Schumaker if (readdir->plus) { 142382f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 142482f2e547SBryan Schumaker FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE; 142582f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 142682f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 142782f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 142882f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 14296f7a35bdSTrond Myklebust dircount >>= 1; 143082f2e547SBryan Schumaker } 143182f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID; 143282f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID; 143397d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 143497d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 143597d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 143697d312d0SManoj Naik else 143797d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 14386f7a35bdSTrond Myklebust 14396f7a35bdSTrond Myklebust p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 14406f7a35bdSTrond Myklebust *p++ = cpu_to_be32(OP_READDIR); 14416f7a35bdSTrond Myklebust p = xdr_encode_hyper(p, readdir->cookie); 14426f7a35bdSTrond Myklebust p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 14436f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 14446f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 14456f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 144682f2e547SBryan Schumaker 1447e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 144834558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1449d017931cSAndy Adamson hdr->nops++; 1450dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 145144109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 145244109241SFred Isaman __func__, 1453eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1454eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1455eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1456eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1457eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 14581da177e4SLinus Torvalds } 14591da177e4SLinus Torvalds 1460cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 14611da177e4SLinus Torvalds { 14628687b63aSAl Viro __be32 *p; 14631da177e4SLinus Torvalds 146413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146534558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1466d017931cSAndy Adamson hdr->nops++; 1467dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 14681da177e4SLinus Torvalds } 14691da177e4SLinus Torvalds 1470cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 14711da177e4SLinus Torvalds { 14728687b63aSAl Viro __be32 *p; 14731da177e4SLinus Torvalds 147413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1475e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1476811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1477d017931cSAndy Adamson hdr->nops++; 1478dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 14791da177e4SLinus Torvalds } 14801da177e4SLinus Torvalds 1481cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 14821da177e4SLinus Torvalds { 14838687b63aSAl Viro __be32 *p; 14841da177e4SLinus Torvalds 1485811652bdSBenny Halevy p = reserve_space(xdr, 4); 1486811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1487811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1488811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1489d017931cSAndy Adamson hdr->nops++; 1490dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14911da177e4SLinus Torvalds } 14921da177e4SLinus Torvalds 1493cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14941da177e4SLinus Torvalds { 14958687b63aSAl Viro __be32 *p; 14961da177e4SLinus Torvalds 149713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1498e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 149934558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1500d017931cSAndy Adamson hdr->nops++; 1501dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 15021da177e4SLinus Torvalds } 15031da177e4SLinus Torvalds 1504cf8cdbe5SAndy Adamson static void 1505d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 150656ae19f3STrond Myklebust { 15078687b63aSAl Viro __be32 *p; 150856ae19f3STrond Myklebust 150913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 151034558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1511d017931cSAndy Adamson hdr->nops++; 1512dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 151356ae19f3STrond Myklebust } 151456ae19f3STrond Myklebust 15159f06c719SChuck Lever static void 1516d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 151723ec6965SJ. Bruce Fields { 15188687b63aSAl Viro __be32 *p; 151923ec6965SJ. Bruce Fields 152013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1521e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 152234558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 152313c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1524e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 152534558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 15269f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 152713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 152834558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 152923ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1530d017931cSAndy Adamson hdr->nops++; 1531dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 153223ec6965SJ. Bruce Fields } 153323ec6965SJ. Bruce Fields 1534cf8cdbe5SAndy Adamson static void 1535d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15361da177e4SLinus Torvalds { 15378687b63aSAl Viro __be32 *p; 15381da177e4SLinus Torvalds 153913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 154034558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1541d017931cSAndy Adamson hdr->nops++; 1542dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 15431da177e4SLinus Torvalds } 15441da177e4SLinus Torvalds 1545cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 15461da177e4SLinus Torvalds { 15478687b63aSAl Viro __be32 *p; 15481da177e4SLinus Torvalds 154913c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1550e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 155134558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1552d017931cSAndy Adamson hdr->nops++; 1553dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1554cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 15551da177e4SLinus Torvalds } 15561da177e4SLinus Torvalds 1557cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 15581da177e4SLinus Torvalds { 15598687b63aSAl Viro __be32 *p; 15601da177e4SLinus Torvalds 156113c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1562e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 156334558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 15641da177e4SLinus Torvalds 15651da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 156613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 156734558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 15681da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 15691da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 157013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 157134558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1572d017931cSAndy Adamson hdr->nops++; 1573dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 15741da177e4SLinus Torvalds } 15751da177e4SLinus Torvalds 1576bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 15771da177e4SLinus Torvalds { 15788687b63aSAl Viro __be32 *p; 15791da177e4SLinus Torvalds 158013c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1581e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1582bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1583bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1584d017931cSAndy Adamson hdr->nops++; 1585dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15861da177e4SLinus Torvalds } 15871da177e4SLinus Torvalds 1588cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15891da177e4SLinus Torvalds { 15908687b63aSAl Viro __be32 *p; 15911da177e4SLinus Torvalds 159213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 159334558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 15941da177e4SLinus Torvalds 1595f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 15961da177e4SLinus Torvalds 159713c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1598b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1599e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 160034558513SBenny Halevy *p = cpu_to_be32(args->count); 16011da177e4SLinus Torvalds 16021da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1603d017931cSAndy Adamson hdr->nops++; 1604dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 16051da177e4SLinus Torvalds } 16061da177e4SLinus Torvalds 1607cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16081da177e4SLinus Torvalds { 16098687b63aSAl Viro __be32 *p; 16101da177e4SLinus Torvalds 161113c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 16121da177e4SLinus Torvalds 1613e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 161434558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1615d017931cSAndy Adamson hdr->nops++; 1616dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 16171da177e4SLinus Torvalds } 16189b7b9fccSAndy Adamson 161999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16209b7b9fccSAndy Adamson /* NFSv4.1 operations */ 162199fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 162299fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 162399fe60d0SBenny Halevy struct compound_hdr *hdr) 162499fe60d0SBenny Halevy { 162599fe60d0SBenny Halevy __be32 *p; 162699fe60d0SBenny Halevy 162713c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1628e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 162934558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 163099fe60d0SBenny Halevy 163199fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 163299fe60d0SBenny Halevy 163313c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1634e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1635e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 163634558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 163799fe60d0SBenny Halevy hdr->nops++; 163899fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 163999fe60d0SBenny Halevy } 1640fc931582SAndy Adamson 1641fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1642fc931582SAndy Adamson struct nfs41_create_session_args *args, 1643fc931582SAndy Adamson struct compound_hdr *hdr) 1644fc931582SAndy Adamson { 1645fc931582SAndy Adamson __be32 *p; 1646fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1647fc931582SAndy Adamson uint32_t len; 1648fc931582SAndy Adamson struct nfs_client *clp = args->client; 16498e0d46e1SMike Sager u32 max_resp_sz_cached; 16508e0d46e1SMike Sager 16518e0d46e1SMike Sager /* 16528e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 16538e0d46e1SMike Sager * 2 is the verifier. 16548e0d46e1SMike Sager */ 16558e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 16568e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1657fc931582SAndy Adamson 1658fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1659fc931582SAndy Adamson clp->cl_ipaddr); 166042edd698SBenny Halevy 166113c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1662e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1663b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1664e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1665e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1666fc931582SAndy Adamson 1667fc931582SAndy Adamson /* Fore Channel */ 1668e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1669e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1670e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 16718e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1672e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1673e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1674e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1675fc931582SAndy Adamson 1676fc931582SAndy Adamson /* Back Channel */ 1677e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1678e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1679e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1680e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1681e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1682e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1683e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1684fc931582SAndy Adamson 1685e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1686e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1687e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1688fc931582SAndy Adamson 1689fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1690e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1691811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1692e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1693e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 169434558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1695fc931582SAndy Adamson hdr->nops++; 1696fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1697fc931582SAndy Adamson } 16980f3e66c6SAndy Adamson 16990f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 17000f3e66c6SAndy Adamson struct nfs4_session *session, 17010f3e66c6SAndy Adamson struct compound_hdr *hdr) 17020f3e66c6SAndy Adamson { 17030f3e66c6SAndy Adamson __be32 *p; 170413c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1705e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 170634558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17070f3e66c6SAndy Adamson hdr->nops++; 17080f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 17090f3e66c6SAndy Adamson } 171018019753SRicardo Labiaga 171118019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 171218019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 171318019753SRicardo Labiaga struct compound_hdr *hdr) 171418019753SRicardo Labiaga { 171518019753SRicardo Labiaga __be32 *p; 171618019753SRicardo Labiaga 171718019753SRicardo Labiaga p = reserve_space(xdr, 8); 171818019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 171918019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 172018019753SRicardo Labiaga hdr->nops++; 172118019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 172218019753SRicardo Labiaga } 172399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 172499fe60d0SBenny Halevy 17259b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 17269b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 17279b7b9fccSAndy Adamson struct compound_hdr *hdr) 17289b7b9fccSAndy Adamson { 17299b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 17309b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1731fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1732fc01cea9SAndy Adamson struct nfs4_slot *slot; 1733fc01cea9SAndy Adamson __be32 *p; 17349b7b9fccSAndy Adamson 17359b7b9fccSAndy Adamson if (!session) 17369b7b9fccSAndy Adamson return; 17379b7b9fccSAndy Adamson 1738fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1739fc01cea9SAndy Adamson 1740fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1741fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1742fc01cea9SAndy Adamson 174313c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1744e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1745fc01cea9SAndy Adamson 1746fc01cea9SAndy Adamson /* 1747fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1748fc01cea9SAndy Adamson */ 1749fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1750fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1751fc01cea9SAndy Adamson __func__, 1752fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1753fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1754fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1755fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1756fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1757fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 175893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1759e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1760e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1761e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 176234558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 17639b7b9fccSAndy Adamson hdr->nops++; 17649b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 17659b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 17669b7b9fccSAndy Adamson } 17679b7b9fccSAndy Adamson 1768b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1769b1f69b75SAndy Adamson static void 1770b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1771b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1772b1f69b75SAndy Adamson struct compound_hdr *hdr) 1773b1f69b75SAndy Adamson { 1774b1f69b75SAndy Adamson __be32 *p; 1775b1f69b75SAndy Adamson 1776b1f69b75SAndy Adamson p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); 1777b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICEINFO); 1778b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1779b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1780b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1781b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1782b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1783b1f69b75SAndy Adamson hdr->nops++; 1784b1f69b75SAndy Adamson hdr->replen += decode_getdeviceinfo_maxsz; 1785b1f69b75SAndy Adamson } 1786b1f69b75SAndy Adamson 1787b1f69b75SAndy Adamson static void 1788b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1789b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1790b1f69b75SAndy Adamson struct compound_hdr *hdr) 1791b1f69b75SAndy Adamson { 1792b1f69b75SAndy Adamson __be32 *p; 1793b1f69b75SAndy Adamson 1794b1f69b75SAndy Adamson p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 1795b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTGET); 1796b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1797b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1798b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1799b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1800b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1801b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1802cf7d63f1SFred Isaman p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 1803b1f69b75SAndy Adamson *p = cpu_to_be32(args->maxcount); 1804b1f69b75SAndy Adamson 1805b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1806b1f69b75SAndy Adamson __func__, 1807b1f69b75SAndy Adamson args->type, 1808b1f69b75SAndy Adamson args->range.iomode, 1809b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1810b1f69b75SAndy Adamson (unsigned long)args->range.length, 1811b1f69b75SAndy Adamson args->maxcount); 1812b1f69b75SAndy Adamson hdr->nops++; 1813b1f69b75SAndy Adamson hdr->replen += decode_layoutget_maxsz; 1814b1f69b75SAndy Adamson } 1815b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 1816b1f69b75SAndy Adamson 18171da177e4SLinus Torvalds /* 18181da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 18191da177e4SLinus Torvalds */ 18201da177e4SLinus Torvalds 182166cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 182266cc0429SBenny Halevy { 182366cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 182466cc0429SBenny Halevy if (args->sa_session) 1825a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 182666cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 182766cc0429SBenny Halevy return 0; 182866cc0429SBenny Halevy } 182966cc0429SBenny Halevy 18301da177e4SLinus Torvalds /* 18311da177e4SLinus Torvalds * Encode an ACCESS request 18321da177e4SLinus Torvalds */ 18339f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 18349f06c719SChuck Lever const struct nfs4_accessargs *args) 18351da177e4SLinus Torvalds { 18361da177e4SLinus Torvalds struct compound_hdr hdr = { 183766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18381da177e4SLinus Torvalds }; 18391da177e4SLinus Torvalds 18409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18429f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 18439f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 18449f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1845d017931cSAndy Adamson encode_nops(&hdr); 18461da177e4SLinus Torvalds } 18471da177e4SLinus Torvalds 18481da177e4SLinus Torvalds /* 18491da177e4SLinus Torvalds * Encode LOOKUP request 18501da177e4SLinus Torvalds */ 18519f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 18529f06c719SChuck Lever const struct nfs4_lookup_arg *args) 18531da177e4SLinus Torvalds { 18541da177e4SLinus Torvalds struct compound_hdr hdr = { 185566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18561da177e4SLinus Torvalds }; 18571da177e4SLinus Torvalds 18589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18609f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 18619f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 18629f06c719SChuck Lever encode_getfh(xdr, &hdr); 18639f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1864d017931cSAndy Adamson encode_nops(&hdr); 18651da177e4SLinus Torvalds } 18661da177e4SLinus Torvalds 18671da177e4SLinus Torvalds /* 18681da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 18691da177e4SLinus Torvalds */ 18709f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 18719f06c719SChuck Lever struct xdr_stream *xdr, 18729f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 18731da177e4SLinus Torvalds { 18741da177e4SLinus Torvalds struct compound_hdr hdr = { 187566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18761da177e4SLinus Torvalds }; 18771da177e4SLinus Torvalds 18789f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18799f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18809f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 18819f06c719SChuck Lever encode_getfh(xdr, &hdr); 18829f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1883d017931cSAndy Adamson encode_nops(&hdr); 18841da177e4SLinus Torvalds } 18851da177e4SLinus Torvalds 18861da177e4SLinus Torvalds /* 18871da177e4SLinus Torvalds * Encode REMOVE request 18881da177e4SLinus Torvalds */ 18899f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 18909f06c719SChuck Lever const struct nfs_removeargs *args) 18911da177e4SLinus Torvalds { 18921da177e4SLinus Torvalds struct compound_hdr hdr = { 189366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18941da177e4SLinus Torvalds }; 18951da177e4SLinus Torvalds 18969f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18979f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18989f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 18999f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 19009f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1901d017931cSAndy Adamson encode_nops(&hdr); 19021da177e4SLinus Torvalds } 19031da177e4SLinus Torvalds 19041da177e4SLinus Torvalds /* 19051da177e4SLinus Torvalds * Encode RENAME request 19061da177e4SLinus Torvalds */ 19079f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 19089f06c719SChuck Lever const struct nfs_renameargs *args) 19091da177e4SLinus Torvalds { 19101da177e4SLinus Torvalds struct compound_hdr hdr = { 191166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19121da177e4SLinus Torvalds }; 19131da177e4SLinus Torvalds 19149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19159f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19169f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 19179f06c719SChuck Lever encode_savefh(xdr, &hdr); 19189f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 19199f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 19209f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19219f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19229f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1923d017931cSAndy Adamson encode_nops(&hdr); 19241da177e4SLinus Torvalds } 19251da177e4SLinus Torvalds 19261da177e4SLinus Torvalds /* 19271da177e4SLinus Torvalds * Encode LINK request 19281da177e4SLinus Torvalds */ 19299f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 19309f06c719SChuck Lever const struct nfs4_link_arg *args) 19311da177e4SLinus Torvalds { 19321da177e4SLinus Torvalds struct compound_hdr hdr = { 193366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19341da177e4SLinus Torvalds }; 19351da177e4SLinus Torvalds 19369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19379f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19389f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19399f06c719SChuck Lever encode_savefh(xdr, &hdr); 19409f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 19419f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 19429f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19439f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19449f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1945d017931cSAndy Adamson encode_nops(&hdr); 19461da177e4SLinus Torvalds } 19471da177e4SLinus Torvalds 19481da177e4SLinus Torvalds /* 19491da177e4SLinus Torvalds * Encode CREATE request 19501da177e4SLinus Torvalds */ 19519f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 19529f06c719SChuck Lever const struct nfs4_create_arg *args) 19531da177e4SLinus Torvalds { 19541da177e4SLinus Torvalds struct compound_hdr hdr = { 195566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19561da177e4SLinus Torvalds }; 19571da177e4SLinus Torvalds 19589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19609f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 19619f06c719SChuck Lever encode_savefh(xdr, &hdr); 19629f06c719SChuck Lever encode_create(xdr, args, &hdr); 19639f06c719SChuck Lever encode_getfh(xdr, &hdr); 19649f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19659f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19669f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1967d017931cSAndy Adamson encode_nops(&hdr); 19681da177e4SLinus Torvalds } 19691da177e4SLinus Torvalds 19701da177e4SLinus Torvalds /* 19711da177e4SLinus Torvalds * Encode SYMLINK request 19721da177e4SLinus Torvalds */ 19739f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 19749f06c719SChuck Lever const struct nfs4_create_arg *args) 19751da177e4SLinus Torvalds { 19769f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 19771da177e4SLinus Torvalds } 19781da177e4SLinus Torvalds 19791da177e4SLinus Torvalds /* 19801da177e4SLinus Torvalds * Encode GETATTR request 19811da177e4SLinus Torvalds */ 19829f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 19839f06c719SChuck Lever const struct nfs4_getattr_arg *args) 19841da177e4SLinus Torvalds { 19851da177e4SLinus Torvalds struct compound_hdr hdr = { 198666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19871da177e4SLinus Torvalds }; 19881da177e4SLinus Torvalds 19899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19919f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19929f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1993d017931cSAndy Adamson encode_nops(&hdr); 19941da177e4SLinus Torvalds } 19951da177e4SLinus Torvalds 19961da177e4SLinus Torvalds /* 19971da177e4SLinus Torvalds * Encode a CLOSE request 19981da177e4SLinus Torvalds */ 19999f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 20009f06c719SChuck Lever struct nfs_closeargs *args) 20011da177e4SLinus Torvalds { 20021da177e4SLinus Torvalds struct compound_hdr hdr = { 200366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20041da177e4SLinus Torvalds }; 20051da177e4SLinus Torvalds 20069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20079f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20089f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20099f06c719SChuck Lever encode_close(xdr, args, &hdr); 20109f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2011d017931cSAndy Adamson encode_nops(&hdr); 20121da177e4SLinus Torvalds } 20131da177e4SLinus Torvalds 20141da177e4SLinus Torvalds /* 20151da177e4SLinus Torvalds * Encode an OPEN request 20161da177e4SLinus Torvalds */ 20179f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 20189f06c719SChuck Lever struct nfs_openargs *args) 20191da177e4SLinus Torvalds { 20201da177e4SLinus Torvalds struct compound_hdr hdr = { 202166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20221da177e4SLinus Torvalds }; 20231da177e4SLinus Torvalds 20249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20269f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20279f06c719SChuck Lever encode_savefh(xdr, &hdr); 20289f06c719SChuck Lever encode_open(xdr, args, &hdr); 20299f06c719SChuck Lever encode_getfh(xdr, &hdr); 20309f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 20319f06c719SChuck Lever encode_restorefh(xdr, &hdr); 20329f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2033d017931cSAndy Adamson encode_nops(&hdr); 20341da177e4SLinus Torvalds } 20351da177e4SLinus Torvalds 20361da177e4SLinus Torvalds /* 20371da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 20381da177e4SLinus Torvalds */ 20399f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 20409f06c719SChuck Lever struct xdr_stream *xdr, 20419f06c719SChuck Lever struct nfs_open_confirmargs *args) 20421da177e4SLinus Torvalds { 20431da177e4SLinus Torvalds struct compound_hdr hdr = { 2044d017931cSAndy Adamson .nops = 0, 20451da177e4SLinus Torvalds }; 20461da177e4SLinus Torvalds 20479f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20489f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20499f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2050d017931cSAndy Adamson encode_nops(&hdr); 20511da177e4SLinus Torvalds } 20521da177e4SLinus Torvalds 20531da177e4SLinus Torvalds /* 20541da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 20551da177e4SLinus Torvalds */ 20569f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 20579f06c719SChuck Lever struct xdr_stream *xdr, 20589f06c719SChuck Lever struct nfs_openargs *args) 20591da177e4SLinus Torvalds { 20601da177e4SLinus Torvalds struct compound_hdr hdr = { 206166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20621da177e4SLinus Torvalds }; 20631da177e4SLinus Torvalds 20649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20659f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20669f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20679f06c719SChuck Lever encode_open(xdr, args, &hdr); 20689f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2069d017931cSAndy Adamson encode_nops(&hdr); 20701da177e4SLinus Torvalds } 20711da177e4SLinus Torvalds 20721da177e4SLinus Torvalds /* 20731da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 20741da177e4SLinus Torvalds */ 20759f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 20769f06c719SChuck Lever struct xdr_stream *xdr, 20779f06c719SChuck Lever struct nfs_closeargs *args) 20781da177e4SLinus Torvalds { 20791da177e4SLinus Torvalds struct compound_hdr hdr = { 208066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20811da177e4SLinus Torvalds }; 20821da177e4SLinus Torvalds 20839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20859f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20869f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 20879f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2088d017931cSAndy Adamson encode_nops(&hdr); 20891da177e4SLinus Torvalds } 20901da177e4SLinus Torvalds 20911da177e4SLinus Torvalds /* 20921da177e4SLinus Torvalds * Encode a LOCK request 20931da177e4SLinus Torvalds */ 20949f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 20959f06c719SChuck Lever struct nfs_lock_args *args) 20961da177e4SLinus Torvalds { 20971da177e4SLinus Torvalds struct compound_hdr hdr = { 209866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20991da177e4SLinus Torvalds }; 21001da177e4SLinus Torvalds 21019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21039f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21049f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2105d017931cSAndy Adamson encode_nops(&hdr); 21061da177e4SLinus Torvalds } 21071da177e4SLinus Torvalds 21081da177e4SLinus Torvalds /* 21091da177e4SLinus Torvalds * Encode a LOCKT request 21101da177e4SLinus Torvalds */ 21119f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 21129f06c719SChuck Lever struct nfs_lockt_args *args) 21131da177e4SLinus Torvalds { 21141da177e4SLinus Torvalds struct compound_hdr hdr = { 211566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21161da177e4SLinus Torvalds }; 21171da177e4SLinus Torvalds 21189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21209f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21219f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2122d017931cSAndy Adamson encode_nops(&hdr); 21231da177e4SLinus Torvalds } 21241da177e4SLinus Torvalds 21251da177e4SLinus Torvalds /* 21261da177e4SLinus Torvalds * Encode a LOCKU request 21271da177e4SLinus Torvalds */ 21289f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 21299f06c719SChuck Lever struct nfs_locku_args *args) 21301da177e4SLinus Torvalds { 21311da177e4SLinus Torvalds struct compound_hdr hdr = { 213266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21331da177e4SLinus Torvalds }; 21341da177e4SLinus Torvalds 21359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21369f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21379f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21389f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2139d017931cSAndy Adamson encode_nops(&hdr); 21401da177e4SLinus Torvalds } 21411da177e4SLinus Torvalds 21429f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 21439f06c719SChuck Lever struct xdr_stream *xdr, 21449f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2145d3c7b7ccSTrond Myklebust { 2146d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2147d3c7b7ccSTrond Myklebust .minorversion = 0, 2148d3c7b7ccSTrond Myklebust }; 2149d3c7b7ccSTrond Myklebust 21509f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21519f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2152d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2153d3c7b7ccSTrond Myklebust } 2154d3c7b7ccSTrond Myklebust 21551da177e4SLinus Torvalds /* 21561da177e4SLinus Torvalds * Encode a READLINK request 21571da177e4SLinus Torvalds */ 21589f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 21599f06c719SChuck Lever const struct nfs4_readlink *args) 21601da177e4SLinus Torvalds { 21611da177e4SLinus Torvalds struct compound_hdr hdr = { 216266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21631da177e4SLinus Torvalds }; 21641da177e4SLinus Torvalds 21659f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21669f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21679f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21689f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2169e3a535e1STrond Myklebust 217028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2171e3a535e1STrond Myklebust args->pgbase, args->pglen); 2172d017931cSAndy Adamson encode_nops(&hdr); 21731da177e4SLinus Torvalds } 21741da177e4SLinus Torvalds 21751da177e4SLinus Torvalds /* 21761da177e4SLinus Torvalds * Encode a READDIR request 21771da177e4SLinus Torvalds */ 21789f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 21799f06c719SChuck Lever const struct nfs4_readdir_arg *args) 21801da177e4SLinus Torvalds { 21811da177e4SLinus Torvalds struct compound_hdr hdr = { 218266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21831da177e4SLinus Torvalds }; 21841da177e4SLinus Torvalds 21859f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21869f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21879f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21889f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2189d6ac02dfSTrond Myklebust 219028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2191d6ac02dfSTrond Myklebust args->pgbase, args->count); 2192d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 219328f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2194d6ac02dfSTrond Myklebust args->pgbase, args->count); 2195d017931cSAndy Adamson encode_nops(&hdr); 21961da177e4SLinus Torvalds } 21971da177e4SLinus Torvalds 21981da177e4SLinus Torvalds /* 21991da177e4SLinus Torvalds * Encode a READ request 22001da177e4SLinus Torvalds */ 22019f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 22029f06c719SChuck Lever struct nfs_readargs *args) 22031da177e4SLinus Torvalds { 22041da177e4SLinus Torvalds struct compound_hdr hdr = { 220566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22061da177e4SLinus Torvalds }; 22071da177e4SLinus Torvalds 22089f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22099f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22109f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22119f06c719SChuck Lever encode_read(xdr, args, &hdr); 22121da177e4SLinus Torvalds 221328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 22141da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 22154f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2216d017931cSAndy Adamson encode_nops(&hdr); 22171da177e4SLinus Torvalds } 22181da177e4SLinus Torvalds 22191da177e4SLinus Torvalds /* 22201da177e4SLinus Torvalds * Encode an SETATTR request 22211da177e4SLinus Torvalds */ 22229f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22239f06c719SChuck Lever struct nfs_setattrargs *args) 22241da177e4SLinus Torvalds { 22251da177e4SLinus Torvalds struct compound_hdr hdr = { 222666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22271da177e4SLinus Torvalds }; 22281da177e4SLinus Torvalds 22299f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22309f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22319f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22329f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 22339f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2234d017931cSAndy Adamson encode_nops(&hdr); 22351da177e4SLinus Torvalds } 22361da177e4SLinus Torvalds 22371da177e4SLinus Torvalds /* 2238029d105eSJ. Bruce Fields * Encode a GETACL request 2239029d105eSJ. Bruce Fields */ 22409f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2241029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2242029d105eSJ. Bruce Fields { 2243029d105eSJ. Bruce Fields struct compound_hdr hdr = { 224466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2245029d105eSJ. Bruce Fields }; 224628f56694SBenny Halevy uint32_t replen; 2247029d105eSJ. Bruce Fields 22489f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22499f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22509f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2251d327cf74SJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; 22529f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2253cf8cdbe5SAndy Adamson 225428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2255029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2256d017931cSAndy Adamson encode_nops(&hdr); 2257029d105eSJ. Bruce Fields } 2258029d105eSJ. Bruce Fields 2259029d105eSJ. Bruce Fields /* 22601da177e4SLinus Torvalds * Encode a WRITE request 22611da177e4SLinus Torvalds */ 22629f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 22639f06c719SChuck Lever struct nfs_writeargs *args) 22641da177e4SLinus Torvalds { 22651da177e4SLinus Torvalds struct compound_hdr hdr = { 226666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22671da177e4SLinus Torvalds }; 22681da177e4SLinus Torvalds 22699f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22709f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22719f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22729f06c719SChuck Lever encode_write(xdr, args, &hdr); 22734f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 22749f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2275d017931cSAndy Adamson encode_nops(&hdr); 22761da177e4SLinus Torvalds } 22771da177e4SLinus Torvalds 22781da177e4SLinus Torvalds /* 22791da177e4SLinus Torvalds * a COMMIT request 22801da177e4SLinus Torvalds */ 22819f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 22829f06c719SChuck Lever struct nfs_writeargs *args) 22831da177e4SLinus Torvalds { 22841da177e4SLinus Torvalds struct compound_hdr hdr = { 228566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22861da177e4SLinus Torvalds }; 22871da177e4SLinus Torvalds 22889f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22899f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22909f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22919f06c719SChuck Lever encode_commit(xdr, args, &hdr); 22929f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2293d017931cSAndy Adamson encode_nops(&hdr); 22941da177e4SLinus Torvalds } 22951da177e4SLinus Torvalds 22961da177e4SLinus Torvalds /* 22971da177e4SLinus Torvalds * FSINFO request 22981da177e4SLinus Torvalds */ 22999f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 23009f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 23011da177e4SLinus Torvalds { 23021da177e4SLinus Torvalds struct compound_hdr hdr = { 230366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23041da177e4SLinus Torvalds }; 23051da177e4SLinus Torvalds 23069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23079f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23089f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23099f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2310d017931cSAndy Adamson encode_nops(&hdr); 23111da177e4SLinus Torvalds } 23121da177e4SLinus Torvalds 23131da177e4SLinus Torvalds /* 23141da177e4SLinus Torvalds * a PATHCONF request 23151da177e4SLinus Torvalds */ 23169f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 23179f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 23181da177e4SLinus Torvalds { 23191da177e4SLinus Torvalds struct compound_hdr hdr = { 232066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23211da177e4SLinus Torvalds }; 23221da177e4SLinus Torvalds 23239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23249f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23259f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23269f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2327d017931cSAndy Adamson &hdr); 2328d017931cSAndy Adamson encode_nops(&hdr); 23291da177e4SLinus Torvalds } 23301da177e4SLinus Torvalds 23311da177e4SLinus Torvalds /* 23321da177e4SLinus Torvalds * a STATFS request 23331da177e4SLinus Torvalds */ 23349f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 23359f06c719SChuck Lever const struct nfs4_statfs_arg *args) 23361da177e4SLinus Torvalds { 23371da177e4SLinus Torvalds struct compound_hdr hdr = { 233866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23391da177e4SLinus Torvalds }; 23401da177e4SLinus Torvalds 23419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23449f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2345d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2346d017931cSAndy Adamson encode_nops(&hdr); 23471da177e4SLinus Torvalds } 23481da177e4SLinus Torvalds 23491da177e4SLinus Torvalds /* 23501da177e4SLinus Torvalds * GETATTR_BITMAP request 23511da177e4SLinus Torvalds */ 23529f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 23539f06c719SChuck Lever struct xdr_stream *xdr, 235443652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 23551da177e4SLinus Torvalds { 23561da177e4SLinus Torvalds struct compound_hdr hdr = { 235766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23581da177e4SLinus Torvalds }; 23591da177e4SLinus Torvalds 23609f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23619f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23629f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 23639f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 23641da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 23651da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2366d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2367d017931cSAndy Adamson encode_nops(&hdr); 23681da177e4SLinus Torvalds } 23691da177e4SLinus Torvalds 23701da177e4SLinus Torvalds /* 23711da177e4SLinus Torvalds * a RENEW request 23721da177e4SLinus Torvalds */ 23739f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 23749f06c719SChuck Lever struct nfs_client *clp) 23751da177e4SLinus Torvalds { 23761da177e4SLinus Torvalds struct compound_hdr hdr = { 2377d017931cSAndy Adamson .nops = 0, 23781da177e4SLinus Torvalds }; 23791da177e4SLinus Torvalds 23809f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23819f06c719SChuck Lever encode_renew(xdr, clp, &hdr); 2382d017931cSAndy Adamson encode_nops(&hdr); 23831da177e4SLinus Torvalds } 23841da177e4SLinus Torvalds 23851da177e4SLinus Torvalds /* 23861da177e4SLinus Torvalds * a SETCLIENTID request 23871da177e4SLinus Torvalds */ 23889f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 23899f06c719SChuck Lever struct xdr_stream *xdr, 23909f06c719SChuck Lever struct nfs4_setclientid *sc) 23911da177e4SLinus Torvalds { 23921da177e4SLinus Torvalds struct compound_hdr hdr = { 2393d017931cSAndy Adamson .nops = 0, 23941da177e4SLinus Torvalds }; 23951da177e4SLinus Torvalds 23969f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23979f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2398d017931cSAndy Adamson encode_nops(&hdr); 23991da177e4SLinus Torvalds } 24001da177e4SLinus Torvalds 24011da177e4SLinus Torvalds /* 24021da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 24031da177e4SLinus Torvalds */ 24049f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 24059f06c719SChuck Lever struct xdr_stream *xdr, 24069f06c719SChuck Lever struct nfs4_setclientid_res *arg) 24071da177e4SLinus Torvalds { 24081da177e4SLinus Torvalds struct compound_hdr hdr = { 2409d017931cSAndy Adamson .nops = 0, 24101da177e4SLinus Torvalds }; 24111da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24121da177e4SLinus Torvalds 24139f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24149f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 24159f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 24169f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2417d017931cSAndy Adamson encode_nops(&hdr); 24181da177e4SLinus Torvalds } 24191da177e4SLinus Torvalds 24201da177e4SLinus Torvalds /* 24211da177e4SLinus Torvalds * DELEGRETURN request 24221da177e4SLinus Torvalds */ 24239f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 24249f06c719SChuck Lever struct xdr_stream *xdr, 24259f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 24261da177e4SLinus Torvalds { 24271da177e4SLinus Torvalds struct compound_hdr hdr = { 242866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24291da177e4SLinus Torvalds }; 24301da177e4SLinus Torvalds 24319f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24329f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24339f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 24349f06c719SChuck Lever encode_delegreturn(xdr, args->stateid, &hdr); 24359f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2436d017931cSAndy Adamson encode_nops(&hdr); 24371da177e4SLinus Torvalds } 24381da177e4SLinus Torvalds 24391da177e4SLinus Torvalds /* 2440683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2441683b57b4STrond Myklebust */ 24429f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 24439f06c719SChuck Lever struct xdr_stream *xdr, 24449f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2445683b57b4STrond Myklebust { 2446683b57b4STrond Myklebust struct compound_hdr hdr = { 244766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2448683b57b4STrond Myklebust }; 244928f56694SBenny Halevy uint32_t replen; 2450683b57b4STrond Myklebust 24519f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24529f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24539f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 24549f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 245528f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 24569f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2457cf8cdbe5SAndy Adamson 245828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2459683b57b4STrond Myklebust 0, PAGE_SIZE); 2460d017931cSAndy Adamson encode_nops(&hdr); 2461683b57b4STrond Myklebust } 2462683b57b4STrond Myklebust 246399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 246499fe60d0SBenny Halevy /* 246599fe60d0SBenny Halevy * EXCHANGE_ID request 246699fe60d0SBenny Halevy */ 24679f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 24689f06c719SChuck Lever struct xdr_stream *xdr, 246999fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 247099fe60d0SBenny Halevy { 247199fe60d0SBenny Halevy struct compound_hdr hdr = { 2472a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 247399fe60d0SBenny Halevy }; 247499fe60d0SBenny Halevy 24759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24769f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 247799fe60d0SBenny Halevy encode_nops(&hdr); 247899fe60d0SBenny Halevy } 24792050f0ccSAndy Adamson 24802050f0ccSAndy Adamson /* 2481fc931582SAndy Adamson * a CREATE_SESSION request 2482fc931582SAndy Adamson */ 24839f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 24849f06c719SChuck Lever struct xdr_stream *xdr, 2485fc931582SAndy Adamson struct nfs41_create_session_args *args) 2486fc931582SAndy Adamson { 2487fc931582SAndy Adamson struct compound_hdr hdr = { 2488a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2489fc931582SAndy Adamson }; 2490fc931582SAndy Adamson 24919f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24929f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2493fc931582SAndy Adamson encode_nops(&hdr); 2494fc931582SAndy Adamson } 2495fc931582SAndy Adamson 2496fc931582SAndy Adamson /* 24970f3e66c6SAndy Adamson * a DESTROY_SESSION request 24980f3e66c6SAndy Adamson */ 24999f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 25009f06c719SChuck Lever struct xdr_stream *xdr, 25010f3e66c6SAndy Adamson struct nfs4_session *session) 25020f3e66c6SAndy Adamson { 25030f3e66c6SAndy Adamson struct compound_hdr hdr = { 2504a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 25050f3e66c6SAndy Adamson }; 25060f3e66c6SAndy Adamson 25079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25089f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 25090f3e66c6SAndy Adamson encode_nops(&hdr); 25100f3e66c6SAndy Adamson } 25110f3e66c6SAndy Adamson 25120f3e66c6SAndy Adamson /* 2513fc01cea9SAndy Adamson * a SEQUENCE request 2514fc01cea9SAndy Adamson */ 25159f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2516fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2517fc01cea9SAndy Adamson { 2518fc01cea9SAndy Adamson struct compound_hdr hdr = { 2519fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2520fc01cea9SAndy Adamson }; 2521fc01cea9SAndy Adamson 25229f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25239f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2524fc01cea9SAndy Adamson encode_nops(&hdr); 2525fc01cea9SAndy Adamson } 2526fc01cea9SAndy Adamson 2527fc01cea9SAndy Adamson /* 25282050f0ccSAndy Adamson * a GET_LEASE_TIME request 25292050f0ccSAndy Adamson */ 25309f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 25319f06c719SChuck Lever struct xdr_stream *xdr, 25322050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 25332050f0ccSAndy Adamson { 25342050f0ccSAndy Adamson struct compound_hdr hdr = { 25352050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 25362050f0ccSAndy Adamson }; 25372050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 25382050f0ccSAndy Adamson 25399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25409f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 25419f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 25429f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 25432050f0ccSAndy Adamson encode_nops(&hdr); 25442050f0ccSAndy Adamson } 254518019753SRicardo Labiaga 254618019753SRicardo Labiaga /* 254718019753SRicardo Labiaga * a RECLAIM_COMPLETE request 254818019753SRicardo Labiaga */ 25499f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 25509f06c719SChuck Lever struct xdr_stream *xdr, 255118019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 255218019753SRicardo Labiaga { 255318019753SRicardo Labiaga struct compound_hdr hdr = { 255418019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 255518019753SRicardo Labiaga }; 255618019753SRicardo Labiaga 25579f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25589f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25599f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 256018019753SRicardo Labiaga encode_nops(&hdr); 256118019753SRicardo Labiaga } 256218019753SRicardo Labiaga 2563b1f69b75SAndy Adamson /* 2564b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2565b1f69b75SAndy Adamson */ 25669f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 25679f06c719SChuck Lever struct xdr_stream *xdr, 2568b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2569b1f69b75SAndy Adamson { 2570b1f69b75SAndy Adamson struct compound_hdr hdr = { 2571b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2572b1f69b75SAndy Adamson }; 2573b1f69b75SAndy Adamson 25749f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25759f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25769f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2577b1f69b75SAndy Adamson 2578b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2579b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2580b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2581b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2582b1f69b75SAndy Adamson args->pdev->pglen); 2583b1f69b75SAndy Adamson 2584b1f69b75SAndy Adamson encode_nops(&hdr); 2585b1f69b75SAndy Adamson } 2586b1f69b75SAndy Adamson 2587b1f69b75SAndy Adamson /* 2588b1f69b75SAndy Adamson * Encode LAYOUTGET request 2589b1f69b75SAndy Adamson */ 25909f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 25919f06c719SChuck Lever struct xdr_stream *xdr, 2592b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2593b1f69b75SAndy Adamson { 2594b1f69b75SAndy Adamson struct compound_hdr hdr = { 2595b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2596b1f69b75SAndy Adamson }; 2597b1f69b75SAndy Adamson 25989f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25999f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26009f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 26019f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 2602b1f69b75SAndy Adamson encode_nops(&hdr); 2603b1f69b75SAndy Adamson } 260499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 260599fe60d0SBenny Halevy 2606686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2607686841b3SBenny Halevy { 2608686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2609686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2610686841b3SBenny Halevy func, xdr->end - xdr->p); 2611686841b3SBenny Halevy } 26121da177e4SLinus Torvalds 2613683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 26141da177e4SLinus Torvalds { 26158687b63aSAl Viro __be32 *p; 26161da177e4SLinus Torvalds 2617c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2618c0eae66eSBenny Halevy if (unlikely(!p)) 2619c0eae66eSBenny Halevy goto out_overflow; 2620cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2621c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2622c0eae66eSBenny Halevy if (unlikely(!p)) 2623c0eae66eSBenny Halevy goto out_overflow; 26241da177e4SLinus Torvalds *string = (char *)p; 26251da177e4SLinus Torvalds return 0; 2626c0eae66eSBenny Halevy out_overflow: 2627c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2628c0eae66eSBenny Halevy return -EIO; 26291da177e4SLinus Torvalds } 26301da177e4SLinus Torvalds 26311da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 26321da177e4SLinus Torvalds { 26338687b63aSAl Viro __be32 *p; 26341da177e4SLinus Torvalds 2635c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2636c0eae66eSBenny Halevy if (unlikely(!p)) 2637c0eae66eSBenny Halevy goto out_overflow; 26386f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2639cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 26401da177e4SLinus Torvalds 2641c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2642c0eae66eSBenny Halevy if (unlikely(!p)) 2643c0eae66eSBenny Halevy goto out_overflow; 26441da177e4SLinus Torvalds hdr->tag = (char *)p; 26451da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2646cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2647aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2648aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 26491da177e4SLinus Torvalds return 0; 2650c0eae66eSBenny Halevy out_overflow: 2651c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2652c0eae66eSBenny Halevy return -EIO; 26531da177e4SLinus Torvalds } 26541da177e4SLinus Torvalds 26551da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 26561da177e4SLinus Torvalds { 26578687b63aSAl Viro __be32 *p; 26581da177e4SLinus Torvalds uint32_t opnum; 26591da177e4SLinus Torvalds int32_t nfserr; 26601da177e4SLinus Torvalds 2661c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2662c0eae66eSBenny Halevy if (unlikely(!p)) 2663c0eae66eSBenny Halevy goto out_overflow; 26646f723f77SBenny Halevy opnum = be32_to_cpup(p++); 26651da177e4SLinus Torvalds if (opnum != expected) { 2666fe82a183SChuck Lever dprintk("nfs: Server returned operation" 26671da177e4SLinus Torvalds " %d but we issued a request for %d\n", 26681da177e4SLinus Torvalds opnum, expected); 26691da177e4SLinus Torvalds return -EIO; 26701da177e4SLinus Torvalds } 2671cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 26721da177e4SLinus Torvalds if (nfserr != NFS_OK) 2673856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 26741da177e4SLinus Torvalds return 0; 2675c0eae66eSBenny Halevy out_overflow: 2676c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2677c0eae66eSBenny Halevy return -EIO; 26781da177e4SLinus Torvalds } 26791da177e4SLinus Torvalds 26801da177e4SLinus Torvalds /* Dummy routine */ 2681adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 26821da177e4SLinus Torvalds { 26838687b63aSAl Viro __be32 *p; 2684683b57b4STrond Myklebust unsigned int strlen; 26851da177e4SLinus Torvalds char *str; 26861da177e4SLinus Torvalds 2687c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2688c0eae66eSBenny Halevy if (likely(p)) 26891da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2690c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2691c0eae66eSBenny Halevy return -EIO; 26921da177e4SLinus Torvalds } 26931da177e4SLinus Torvalds 26941da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 26951da177e4SLinus Torvalds { 26968687b63aSAl Viro uint32_t bmlen; 26978687b63aSAl Viro __be32 *p; 26981da177e4SLinus Torvalds 2699c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2700c0eae66eSBenny Halevy if (unlikely(!p)) 2701c0eae66eSBenny Halevy goto out_overflow; 2702cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 27031da177e4SLinus Torvalds 27041da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2705c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2706c0eae66eSBenny Halevy if (unlikely(!p)) 2707c0eae66eSBenny Halevy goto out_overflow; 27081da177e4SLinus Torvalds if (bmlen > 0) { 27096f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 27101da177e4SLinus Torvalds if (bmlen > 1) 2711cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 27121da177e4SLinus Torvalds } 27131da177e4SLinus Torvalds return 0; 2714c0eae66eSBenny Halevy out_overflow: 2715c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2716c0eae66eSBenny Halevy return -EIO; 27171da177e4SLinus Torvalds } 27181da177e4SLinus Torvalds 27198687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 27201da177e4SLinus Torvalds { 27218687b63aSAl Viro __be32 *p; 27221da177e4SLinus Torvalds 2723c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2724c0eae66eSBenny Halevy if (unlikely(!p)) 2725c0eae66eSBenny Halevy goto out_overflow; 2726cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 27271da177e4SLinus Torvalds *savep = xdr->p; 27281da177e4SLinus Torvalds return 0; 2729c0eae66eSBenny Halevy out_overflow: 2730c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2731c0eae66eSBenny Halevy return -EIO; 27321da177e4SLinus Torvalds } 27331da177e4SLinus Torvalds 27341da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 27351da177e4SLinus Torvalds { 27361da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 27373388bff5SRoman Borisov int ret; 27383388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 27393388bff5SRoman Borisov if (unlikely(ret < 0)) 27403388bff5SRoman Borisov return ret; 27411da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 27421da177e4SLinus Torvalds } else 27431da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 274444109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 27451da177e4SLinus Torvalds return 0; 27461da177e4SLinus Torvalds } 27471da177e4SLinus Torvalds 27481da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 27491da177e4SLinus Torvalds { 27508687b63aSAl Viro __be32 *p; 2751409924e4STrond Myklebust int ret = 0; 27521da177e4SLinus Torvalds 27531da177e4SLinus Torvalds *type = 0; 27541da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 27551da177e4SLinus Torvalds return -EIO; 27561da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2757c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2758c0eae66eSBenny Halevy if (unlikely(!p)) 2759c0eae66eSBenny Halevy goto out_overflow; 2760cccddf4fSBenny Halevy *type = be32_to_cpup(p); 27611da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 27623110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 27631da177e4SLinus Torvalds return -EIO; 27641da177e4SLinus Torvalds } 27651da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2766409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 27671da177e4SLinus Torvalds } 2768bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2769409924e4STrond Myklebust return ret; 2770c0eae66eSBenny Halevy out_overflow: 2771c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2772c0eae66eSBenny Halevy return -EIO; 27731da177e4SLinus Torvalds } 27741da177e4SLinus Torvalds 27751da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 27761da177e4SLinus Torvalds { 27778687b63aSAl Viro __be32 *p; 2778409924e4STrond Myklebust int ret = 0; 27791da177e4SLinus Torvalds 27801da177e4SLinus Torvalds *change = 0; 27811da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 27821da177e4SLinus Torvalds return -EIO; 27831da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2784c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2785c0eae66eSBenny Halevy if (unlikely(!p)) 2786c0eae66eSBenny Halevy goto out_overflow; 2787cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 27881da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2789409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 27901da177e4SLinus Torvalds } 27913110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 27921da177e4SLinus Torvalds (unsigned long long)*change); 2793409924e4STrond Myklebust return ret; 2794c0eae66eSBenny Halevy out_overflow: 2795c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2796c0eae66eSBenny Halevy return -EIO; 27971da177e4SLinus Torvalds } 27981da177e4SLinus Torvalds 27991da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 28001da177e4SLinus Torvalds { 28018687b63aSAl Viro __be32 *p; 2802409924e4STrond Myklebust int ret = 0; 28031da177e4SLinus Torvalds 28041da177e4SLinus Torvalds *size = 0; 28051da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 28061da177e4SLinus Torvalds return -EIO; 28071da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2808c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2809c0eae66eSBenny Halevy if (unlikely(!p)) 2810c0eae66eSBenny Halevy goto out_overflow; 2811cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 28121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2813409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 28141da177e4SLinus Torvalds } 28153110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2816409924e4STrond Myklebust return ret; 2817c0eae66eSBenny Halevy out_overflow: 2818c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2819c0eae66eSBenny Halevy return -EIO; 28201da177e4SLinus Torvalds } 28211da177e4SLinus Torvalds 28221da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28231da177e4SLinus Torvalds { 28248687b63aSAl Viro __be32 *p; 28251da177e4SLinus Torvalds 28261da177e4SLinus Torvalds *res = 0; 28271da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 28281da177e4SLinus Torvalds return -EIO; 28291da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2830c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2831c0eae66eSBenny Halevy if (unlikely(!p)) 2832c0eae66eSBenny Halevy goto out_overflow; 2833cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28341da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 28351da177e4SLinus Torvalds } 28363110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 28371da177e4SLinus Torvalds return 0; 2838c0eae66eSBenny Halevy out_overflow: 2839c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2840c0eae66eSBenny Halevy return -EIO; 28411da177e4SLinus Torvalds } 28421da177e4SLinus Torvalds 28431da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28441da177e4SLinus Torvalds { 28458687b63aSAl Viro __be32 *p; 28461da177e4SLinus Torvalds 28471da177e4SLinus Torvalds *res = 0; 28481da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 28491da177e4SLinus Torvalds return -EIO; 28501da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2851c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2852c0eae66eSBenny Halevy if (unlikely(!p)) 2853c0eae66eSBenny Halevy goto out_overflow; 2854cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28551da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 28561da177e4SLinus Torvalds } 28573110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 28581da177e4SLinus Torvalds return 0; 2859c0eae66eSBenny Halevy out_overflow: 2860c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2861c0eae66eSBenny Halevy return -EIO; 28621da177e4SLinus Torvalds } 28631da177e4SLinus Torvalds 28648b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 28651da177e4SLinus Torvalds { 28668687b63aSAl Viro __be32 *p; 2867409924e4STrond Myklebust int ret = 0; 28681da177e4SLinus Torvalds 28691da177e4SLinus Torvalds fsid->major = 0; 28701da177e4SLinus Torvalds fsid->minor = 0; 28711da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 28721da177e4SLinus Torvalds return -EIO; 28731da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2874c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2875c0eae66eSBenny Halevy if (unlikely(!p)) 2876c0eae66eSBenny Halevy goto out_overflow; 28773ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2878cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 28791da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2880409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 28811da177e4SLinus Torvalds } 28823110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 28831da177e4SLinus Torvalds (unsigned long long)fsid->major, 28841da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2885409924e4STrond Myklebust return ret; 2886c0eae66eSBenny Halevy out_overflow: 2887c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2888c0eae66eSBenny Halevy return -EIO; 28891da177e4SLinus Torvalds } 28901da177e4SLinus Torvalds 28911da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28921da177e4SLinus Torvalds { 28938687b63aSAl Viro __be32 *p; 28941da177e4SLinus Torvalds 28951da177e4SLinus Torvalds *res = 60; 28961da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 28971da177e4SLinus Torvalds return -EIO; 28981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2899c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2900c0eae66eSBenny Halevy if (unlikely(!p)) 2901c0eae66eSBenny Halevy goto out_overflow; 2902cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29031da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 29041da177e4SLinus Torvalds } 29053110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 29061da177e4SLinus Torvalds return 0; 2907c0eae66eSBenny Halevy out_overflow: 2908c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2909c0eae66eSBenny Halevy return -EIO; 29101da177e4SLinus Torvalds } 29111da177e4SLinus Torvalds 2912ae42c70aSBryan Schumaker static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap) 2913ae42c70aSBryan Schumaker { 2914ae42c70aSBryan Schumaker __be32 *p; 2915ae42c70aSBryan Schumaker 2916ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 2917ae42c70aSBryan Schumaker return -EIO; 2918ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 2919ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 2920ae42c70aSBryan Schumaker if (unlikely(!p)) 2921ae42c70aSBryan Schumaker goto out_overflow; 2922ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 2923ae42c70aSBryan Schumaker } 2924ae42c70aSBryan Schumaker return 0; 2925ae42c70aSBryan Schumaker out_overflow: 2926ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 2927ae42c70aSBryan Schumaker return -EIO; 2928ae42c70aSBryan Schumaker } 2929ae42c70aSBryan Schumaker 2930ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 2931ae42c70aSBryan Schumaker { 2932ae42c70aSBryan Schumaker __be32 *p; 2933ae42c70aSBryan Schumaker int len; 2934ae42c70aSBryan Schumaker 29357ad07353STrond Myklebust if (fh != NULL) 2936ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 2937ae42c70aSBryan Schumaker 2938ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 2939ae42c70aSBryan Schumaker return -EIO; 2940ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 2941ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 2942ae42c70aSBryan Schumaker if (unlikely(!p)) 2943ae42c70aSBryan Schumaker goto out_overflow; 2944ae42c70aSBryan Schumaker len = be32_to_cpup(p); 2945ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 2946ae42c70aSBryan Schumaker return -EIO; 2947ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 2948ae42c70aSBryan Schumaker if (unlikely(!p)) 2949ae42c70aSBryan Schumaker goto out_overflow; 29507ad07353STrond Myklebust if (fh != NULL) { 2951ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 29527ad07353STrond Myklebust fh->size = len; 29537ad07353STrond Myklebust } 2954ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 2955ae42c70aSBryan Schumaker } 2956ae42c70aSBryan Schumaker return 0; 2957ae42c70aSBryan Schumaker out_overflow: 2958ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 2959ae42c70aSBryan Schumaker return -EIO; 2960ae42c70aSBryan Schumaker } 2961ae42c70aSBryan Schumaker 29621da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29631da177e4SLinus Torvalds { 29648687b63aSAl Viro __be32 *p; 29651da177e4SLinus Torvalds 29661da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 29671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 29681da177e4SLinus Torvalds return -EIO; 29691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2970c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2971c0eae66eSBenny Halevy if (unlikely(!p)) 2972c0eae66eSBenny Halevy goto out_overflow; 2973cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29741da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 29751da177e4SLinus Torvalds } 29763110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 29771da177e4SLinus Torvalds return 0; 2978c0eae66eSBenny Halevy out_overflow: 2979c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2980c0eae66eSBenny Halevy return -EIO; 29811da177e4SLinus Torvalds } 29821da177e4SLinus Torvalds 29831da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 29841da177e4SLinus Torvalds { 29858687b63aSAl Viro __be32 *p; 2986409924e4STrond Myklebust int ret = 0; 29871da177e4SLinus Torvalds 29881da177e4SLinus Torvalds *fileid = 0; 29891da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 29901da177e4SLinus Torvalds return -EIO; 29911da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2992c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2993c0eae66eSBenny Halevy if (unlikely(!p)) 2994c0eae66eSBenny Halevy goto out_overflow; 2995cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 29961da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2997409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 29981da177e4SLinus Torvalds } 29993110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3000409924e4STrond Myklebust return ret; 3001c0eae66eSBenny Halevy out_overflow: 3002c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3003c0eae66eSBenny Halevy return -EIO; 30041da177e4SLinus Torvalds } 30051da177e4SLinus Torvalds 300699baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 300799baf625SManoj Naik { 30088687b63aSAl Viro __be32 *p; 3009409924e4STrond Myklebust int ret = 0; 301099baf625SManoj Naik 301199baf625SManoj Naik *fileid = 0; 301299baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 301399baf625SManoj Naik return -EIO; 301499baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3015c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3016c0eae66eSBenny Halevy if (unlikely(!p)) 3017c0eae66eSBenny Halevy goto out_overflow; 3018cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 301999baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 3020409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 302199baf625SManoj Naik } 30223110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3023409924e4STrond Myklebust return ret; 3024c0eae66eSBenny Halevy out_overflow: 3025c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3026c0eae66eSBenny Halevy return -EIO; 302799baf625SManoj Naik } 302899baf625SManoj Naik 30291da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30301da177e4SLinus Torvalds { 30318687b63aSAl Viro __be32 *p; 30321da177e4SLinus Torvalds int status = 0; 30331da177e4SLinus Torvalds 30341da177e4SLinus Torvalds *res = 0; 30351da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 30361da177e4SLinus Torvalds return -EIO; 30371da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3038c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3039c0eae66eSBenny Halevy if (unlikely(!p)) 3040c0eae66eSBenny Halevy goto out_overflow; 3041cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 30431da177e4SLinus Torvalds } 30443110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 30451da177e4SLinus Torvalds return status; 3046c0eae66eSBenny Halevy out_overflow: 3047c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3048c0eae66eSBenny Halevy return -EIO; 30491da177e4SLinus Torvalds } 30501da177e4SLinus Torvalds 30511da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30521da177e4SLinus Torvalds { 30538687b63aSAl Viro __be32 *p; 30541da177e4SLinus Torvalds int status = 0; 30551da177e4SLinus Torvalds 30561da177e4SLinus Torvalds *res = 0; 30571da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 30581da177e4SLinus Torvalds return -EIO; 30591da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3060c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3061c0eae66eSBenny Halevy if (unlikely(!p)) 3062c0eae66eSBenny Halevy goto out_overflow; 3063cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30641da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 30651da177e4SLinus Torvalds } 30663110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 30671da177e4SLinus Torvalds return status; 3068c0eae66eSBenny Halevy out_overflow: 3069c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3070c0eae66eSBenny Halevy return -EIO; 30711da177e4SLinus Torvalds } 30721da177e4SLinus Torvalds 30731da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30741da177e4SLinus Torvalds { 30758687b63aSAl Viro __be32 *p; 30761da177e4SLinus Torvalds int status = 0; 30771da177e4SLinus Torvalds 30781da177e4SLinus Torvalds *res = 0; 30791da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 30801da177e4SLinus Torvalds return -EIO; 30811da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3082c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3083c0eae66eSBenny Halevy if (unlikely(!p)) 3084c0eae66eSBenny Halevy goto out_overflow; 3085cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 30871da177e4SLinus Torvalds } 30883110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 30891da177e4SLinus Torvalds return status; 3090c0eae66eSBenny Halevy out_overflow: 3091c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3092c0eae66eSBenny Halevy return -EIO; 30931da177e4SLinus Torvalds } 30941da177e4SLinus Torvalds 30957aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 30967aaa0b3bSManoj Naik { 3097464ad6b1SChuck Lever u32 n; 30988687b63aSAl Viro __be32 *p; 30997aaa0b3bSManoj Naik int status = 0; 31007aaa0b3bSManoj Naik 3101c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3102c0eae66eSBenny Halevy if (unlikely(!p)) 3103c0eae66eSBenny Halevy goto out_overflow; 3104cccddf4fSBenny Halevy n = be32_to_cpup(p); 310533a43f28SAndy Adamson if (n == 0) 310633a43f28SAndy Adamson goto root_path; 31077aaa0b3bSManoj Naik dprintk("path "); 31087aaa0b3bSManoj Naik path->ncomponents = 0; 31097aaa0b3bSManoj Naik while (path->ncomponents < n) { 31107aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 31117aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 31127aaa0b3bSManoj Naik if (unlikely(status != 0)) 31137aaa0b3bSManoj Naik goto out_eio; 31147aaa0b3bSManoj Naik if (path->ncomponents != n) 31157aaa0b3bSManoj Naik dprintk("/"); 31167aaa0b3bSManoj Naik dprintk("%s", component->data); 31177aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 31187aaa0b3bSManoj Naik path->ncomponents++; 31197aaa0b3bSManoj Naik else { 31207aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 31217aaa0b3bSManoj Naik goto out_eio; 31227aaa0b3bSManoj Naik } 31237aaa0b3bSManoj Naik } 31247aaa0b3bSManoj Naik out: 31257aaa0b3bSManoj Naik dprintk("\n"); 31267aaa0b3bSManoj Naik return status; 312733a43f28SAndy Adamson root_path: 312833a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 312933a43f28SAndy Adamson path->ncomponents = 1; 313033a43f28SAndy Adamson path->components[0].len=0; 313133a43f28SAndy Adamson path->components[0].data=NULL; 313233a43f28SAndy Adamson dprintk("path /\n"); 313333a43f28SAndy Adamson goto out; 31347aaa0b3bSManoj Naik out_eio: 31357aaa0b3bSManoj Naik dprintk(" status %d", status); 31367aaa0b3bSManoj Naik status = -EIO; 31377aaa0b3bSManoj Naik goto out; 3138c0eae66eSBenny Halevy out_overflow: 3139c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3140c0eae66eSBenny Halevy return -EIO; 31417aaa0b3bSManoj Naik } 31427aaa0b3bSManoj Naik 31437aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3144683b57b4STrond Myklebust { 3145683b57b4STrond Myklebust int n; 31468687b63aSAl Viro __be32 *p; 3147683b57b4STrond Myklebust int status = -EIO; 3148683b57b4STrond Myklebust 3149683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3150683b57b4STrond Myklebust goto out; 3151683b57b4STrond Myklebust status = 0; 3152683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3153683b57b4STrond Myklebust goto out; 31543110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 31557aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3156683b57b4STrond Myklebust if (unlikely(status != 0)) 3157683b57b4STrond Myklebust goto out; 3158c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3159c0eae66eSBenny Halevy if (unlikely(!p)) 3160c0eae66eSBenny Halevy goto out_overflow; 3161cccddf4fSBenny Halevy n = be32_to_cpup(p); 3162683b57b4STrond Myklebust if (n <= 0) 3163683b57b4STrond Myklebust goto out_eio; 3164683b57b4STrond Myklebust res->nlocations = 0; 3165683b57b4STrond Myklebust while (res->nlocations < n) { 3166464ad6b1SChuck Lever u32 m; 31677aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3168683b57b4STrond Myklebust 3169c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3170c0eae66eSBenny Halevy if (unlikely(!p)) 3171c0eae66eSBenny Halevy goto out_overflow; 3172cccddf4fSBenny Halevy m = be32_to_cpup(p); 31737aaa0b3bSManoj Naik 31747aaa0b3bSManoj Naik loc->nservers = 0; 31753110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 31767aaa0b3bSManoj Naik while (loc->nservers < m) { 31777aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 31787aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3179683b57b4STrond Myklebust if (unlikely(status != 0)) 3180683b57b4STrond Myklebust goto out_eio; 31817aaa0b3bSManoj Naik dprintk("%s ", server->data); 31827aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 31837aaa0b3bSManoj Naik loc->nservers++; 31847aaa0b3bSManoj Naik else { 3185464ad6b1SChuck Lever unsigned int i; 3186464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3187464ad6b1SChuck Lever "returned for location %u\n", 31883110ff80SHarvey Harrison __func__, 3189464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3190464ad6b1SChuck Lever m, res->nlocations); 31917aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 31922e42c3e2STrond Myklebust unsigned int len; 31937aaa0b3bSManoj Naik char *data; 31947aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3195683b57b4STrond Myklebust if (unlikely(status != 0)) 3196683b57b4STrond Myklebust goto out_eio; 31977aaa0b3bSManoj Naik } 31987aaa0b3bSManoj Naik } 31997aaa0b3bSManoj Naik } 32007aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 32017aaa0b3bSManoj Naik if (unlikely(status != 0)) 32027aaa0b3bSManoj Naik goto out_eio; 32037aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3204683b57b4STrond Myklebust res->nlocations++; 3205683b57b4STrond Myklebust } 3206409924e4STrond Myklebust if (res->nlocations != 0) 3207409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3208683b57b4STrond Myklebust out: 32093110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3210683b57b4STrond Myklebust return status; 3211c0eae66eSBenny Halevy out_overflow: 3212c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3213683b57b4STrond Myklebust out_eio: 3214683b57b4STrond Myklebust status = -EIO; 3215683b57b4STrond Myklebust goto out; 3216683b57b4STrond Myklebust } 3217683b57b4STrond Myklebust 32181da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 32191da177e4SLinus Torvalds { 32208687b63aSAl Viro __be32 *p; 32211da177e4SLinus Torvalds int status = 0; 32221da177e4SLinus Torvalds 32231da177e4SLinus Torvalds *res = 0; 32241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 32251da177e4SLinus Torvalds return -EIO; 32261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3227c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3228c0eae66eSBenny Halevy if (unlikely(!p)) 3229c0eae66eSBenny Halevy goto out_overflow; 3230cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 32311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 32321da177e4SLinus Torvalds } 32333110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 32341da177e4SLinus Torvalds return status; 3235c0eae66eSBenny Halevy out_overflow: 3236c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3237c0eae66eSBenny Halevy return -EIO; 32381da177e4SLinus Torvalds } 32391da177e4SLinus Torvalds 32401da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 32411da177e4SLinus Torvalds { 32428687b63aSAl Viro __be32 *p; 32431da177e4SLinus Torvalds int status = 0; 32441da177e4SLinus Torvalds 32451da177e4SLinus Torvalds *maxlink = 1; 32461da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 32471da177e4SLinus Torvalds return -EIO; 32481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3249c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3250c0eae66eSBenny Halevy if (unlikely(!p)) 3251c0eae66eSBenny Halevy goto out_overflow; 3252cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 32531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 32541da177e4SLinus Torvalds } 32553110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 32561da177e4SLinus Torvalds return status; 3257c0eae66eSBenny Halevy out_overflow: 3258c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3259c0eae66eSBenny Halevy return -EIO; 32601da177e4SLinus Torvalds } 32611da177e4SLinus Torvalds 32621da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 32631da177e4SLinus Torvalds { 32648687b63aSAl Viro __be32 *p; 32651da177e4SLinus Torvalds int status = 0; 32661da177e4SLinus Torvalds 32671da177e4SLinus Torvalds *maxname = 1024; 32681da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 32691da177e4SLinus Torvalds return -EIO; 32701da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3271c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3272c0eae66eSBenny Halevy if (unlikely(!p)) 3273c0eae66eSBenny Halevy goto out_overflow; 3274cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 32751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 32761da177e4SLinus Torvalds } 32773110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 32781da177e4SLinus Torvalds return status; 3279c0eae66eSBenny Halevy out_overflow: 3280c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3281c0eae66eSBenny Halevy return -EIO; 32821da177e4SLinus Torvalds } 32831da177e4SLinus Torvalds 32841da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32851da177e4SLinus Torvalds { 32868687b63aSAl Viro __be32 *p; 32871da177e4SLinus Torvalds int status = 0; 32881da177e4SLinus Torvalds 32891da177e4SLinus Torvalds *res = 1024; 32901da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 32911da177e4SLinus Torvalds return -EIO; 32921da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 32931da177e4SLinus Torvalds uint64_t maxread; 3294c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3295c0eae66eSBenny Halevy if (unlikely(!p)) 3296c0eae66eSBenny Halevy goto out_overflow; 3297cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 32981da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 32991da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 33001da177e4SLinus Torvalds *res = (uint32_t)maxread; 33011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 33021da177e4SLinus Torvalds } 33033110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 33041da177e4SLinus Torvalds return status; 3305c0eae66eSBenny Halevy out_overflow: 3306c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3307c0eae66eSBenny Halevy return -EIO; 33081da177e4SLinus Torvalds } 33091da177e4SLinus Torvalds 33101da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33111da177e4SLinus Torvalds { 33128687b63aSAl Viro __be32 *p; 33131da177e4SLinus Torvalds int status = 0; 33141da177e4SLinus Torvalds 33151da177e4SLinus Torvalds *res = 1024; 33161da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 33171da177e4SLinus Torvalds return -EIO; 33181da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 33191da177e4SLinus Torvalds uint64_t maxwrite; 3320c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3321c0eae66eSBenny Halevy if (unlikely(!p)) 3322c0eae66eSBenny Halevy goto out_overflow; 3323cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 33241da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 33251da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 33261da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 33271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 33281da177e4SLinus Torvalds } 33293110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 33301da177e4SLinus Torvalds return status; 3331c0eae66eSBenny Halevy out_overflow: 3332c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3333c0eae66eSBenny Halevy return -EIO; 33341da177e4SLinus Torvalds } 33351da177e4SLinus Torvalds 3336bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 33371da177e4SLinus Torvalds { 3338bca79478STrond Myklebust uint32_t tmp; 33398687b63aSAl Viro __be32 *p; 3340409924e4STrond Myklebust int ret = 0; 33411da177e4SLinus Torvalds 33421da177e4SLinus Torvalds *mode = 0; 33431da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 33441da177e4SLinus Torvalds return -EIO; 33451da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3346c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3347c0eae66eSBenny Halevy if (unlikely(!p)) 3348c0eae66eSBenny Halevy goto out_overflow; 3349cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3350bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 33511da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3352409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 33531da177e4SLinus Torvalds } 33543110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3355409924e4STrond Myklebust return ret; 3356c0eae66eSBenny Halevy out_overflow: 3357c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3358c0eae66eSBenny Halevy return -EIO; 33591da177e4SLinus Torvalds } 33601da177e4SLinus Torvalds 33611da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 33621da177e4SLinus Torvalds { 33638687b63aSAl Viro __be32 *p; 3364409924e4STrond Myklebust int ret = 0; 33651da177e4SLinus Torvalds 33661da177e4SLinus Torvalds *nlink = 1; 33671da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 33681da177e4SLinus Torvalds return -EIO; 33691da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3370c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3371c0eae66eSBenny Halevy if (unlikely(!p)) 3372c0eae66eSBenny Halevy goto out_overflow; 3373cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 33741da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3375409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 33761da177e4SLinus Torvalds } 33773110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3378409924e4STrond Myklebust return ret; 3379c0eae66eSBenny Halevy out_overflow: 3380c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3381c0eae66eSBenny Halevy return -EIO; 33821da177e4SLinus Torvalds } 33831da177e4SLinus Torvalds 338480e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 338580e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *uid, int may_sleep) 33861da177e4SLinus Torvalds { 33878687b63aSAl Viro uint32_t len; 33888687b63aSAl Viro __be32 *p; 3389409924e4STrond Myklebust int ret = 0; 33901da177e4SLinus Torvalds 33911da177e4SLinus Torvalds *uid = -2; 33921da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 33931da177e4SLinus Torvalds return -EIO; 33941da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3395c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3396c0eae66eSBenny Halevy if (unlikely(!p)) 3397c0eae66eSBenny Halevy goto out_overflow; 3398cccddf4fSBenny Halevy len = be32_to_cpup(p); 3399c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3400c0eae66eSBenny Halevy if (unlikely(!p)) 3401c0eae66eSBenny Halevy goto out_overflow; 340280e52aceSTrond Myklebust if (!may_sleep) { 340380e52aceSTrond Myklebust /* do nothing */ 340480e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3405409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3406409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3407409924e4STrond Myklebust else 34081da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 34093110ff80SHarvey Harrison __func__); 34101da177e4SLinus Torvalds } else 3411fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 34123110ff80SHarvey Harrison __func__, len); 34131da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 34141da177e4SLinus Torvalds } 34153110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3416409924e4STrond Myklebust return ret; 3417c0eae66eSBenny Halevy out_overflow: 3418c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3419c0eae66eSBenny Halevy return -EIO; 34201da177e4SLinus Torvalds } 34211da177e4SLinus Torvalds 342280e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 342380e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *gid, int may_sleep) 34241da177e4SLinus Torvalds { 34258687b63aSAl Viro uint32_t len; 34268687b63aSAl Viro __be32 *p; 3427409924e4STrond Myklebust int ret = 0; 34281da177e4SLinus Torvalds 34291da177e4SLinus Torvalds *gid = -2; 34301da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 34311da177e4SLinus Torvalds return -EIO; 34321da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3433c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3434c0eae66eSBenny Halevy if (unlikely(!p)) 3435c0eae66eSBenny Halevy goto out_overflow; 3436cccddf4fSBenny Halevy len = be32_to_cpup(p); 3437c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3438c0eae66eSBenny Halevy if (unlikely(!p)) 3439c0eae66eSBenny Halevy goto out_overflow; 344080e52aceSTrond Myklebust if (!may_sleep) { 344180e52aceSTrond Myklebust /* do nothing */ 344280e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3443409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3444409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3445409924e4STrond Myklebust else 34461da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 34473110ff80SHarvey Harrison __func__); 34481da177e4SLinus Torvalds } else 3449fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 34503110ff80SHarvey Harrison __func__, len); 34511da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 34521da177e4SLinus Torvalds } 34533110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3454409924e4STrond Myklebust return ret; 3455c0eae66eSBenny Halevy out_overflow: 3456c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3457c0eae66eSBenny Halevy return -EIO; 34581da177e4SLinus Torvalds } 34591da177e4SLinus Torvalds 34601da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 34611da177e4SLinus Torvalds { 34628687b63aSAl Viro uint32_t major = 0, minor = 0; 34638687b63aSAl Viro __be32 *p; 3464409924e4STrond Myklebust int ret = 0; 34651da177e4SLinus Torvalds 34661da177e4SLinus Torvalds *rdev = MKDEV(0,0); 34671da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 34681da177e4SLinus Torvalds return -EIO; 34691da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 34701da177e4SLinus Torvalds dev_t tmp; 34711da177e4SLinus Torvalds 3472c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3473c0eae66eSBenny Halevy if (unlikely(!p)) 3474c0eae66eSBenny Halevy goto out_overflow; 34756f723f77SBenny Halevy major = be32_to_cpup(p++); 3476cccddf4fSBenny Halevy minor = be32_to_cpup(p); 34771da177e4SLinus Torvalds tmp = MKDEV(major, minor); 34781da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 34791da177e4SLinus Torvalds *rdev = tmp; 34801da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3481409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 34821da177e4SLinus Torvalds } 34833110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3484409924e4STrond Myklebust return ret; 3485c0eae66eSBenny Halevy out_overflow: 3486c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3487c0eae66eSBenny Halevy return -EIO; 34881da177e4SLinus Torvalds } 34891da177e4SLinus Torvalds 34901da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34911da177e4SLinus Torvalds { 34928687b63aSAl Viro __be32 *p; 34931da177e4SLinus Torvalds int status = 0; 34941da177e4SLinus Torvalds 34951da177e4SLinus Torvalds *res = 0; 34961da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 34971da177e4SLinus Torvalds return -EIO; 34981da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3499c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3500c0eae66eSBenny Halevy if (unlikely(!p)) 3501c0eae66eSBenny Halevy goto out_overflow; 3502cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35031da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 35041da177e4SLinus Torvalds } 35053110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 35061da177e4SLinus Torvalds return status; 3507c0eae66eSBenny Halevy out_overflow: 3508c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3509c0eae66eSBenny Halevy return -EIO; 35101da177e4SLinus Torvalds } 35111da177e4SLinus Torvalds 35121da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35131da177e4SLinus Torvalds { 35148687b63aSAl Viro __be32 *p; 35151da177e4SLinus Torvalds int status = 0; 35161da177e4SLinus Torvalds 35171da177e4SLinus Torvalds *res = 0; 35181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 35191da177e4SLinus Torvalds return -EIO; 35201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3521c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3522c0eae66eSBenny Halevy if (unlikely(!p)) 3523c0eae66eSBenny Halevy goto out_overflow; 3524cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 35261da177e4SLinus Torvalds } 35273110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 35281da177e4SLinus Torvalds return status; 3529c0eae66eSBenny Halevy out_overflow: 3530c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3531c0eae66eSBenny Halevy return -EIO; 35321da177e4SLinus Torvalds } 35331da177e4SLinus Torvalds 35341da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35351da177e4SLinus Torvalds { 35368687b63aSAl Viro __be32 *p; 35371da177e4SLinus Torvalds int status = 0; 35381da177e4SLinus Torvalds 35391da177e4SLinus Torvalds *res = 0; 35401da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 35411da177e4SLinus Torvalds return -EIO; 35421da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3543c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3544c0eae66eSBenny Halevy if (unlikely(!p)) 3545c0eae66eSBenny Halevy goto out_overflow; 3546cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35471da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 35481da177e4SLinus Torvalds } 35493110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 35501da177e4SLinus Torvalds return status; 3551c0eae66eSBenny Halevy out_overflow: 3552c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3553c0eae66eSBenny Halevy return -EIO; 35541da177e4SLinus Torvalds } 35551da177e4SLinus Torvalds 35561da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 35571da177e4SLinus Torvalds { 35588687b63aSAl Viro __be32 *p; 3559409924e4STrond Myklebust int ret = 0; 35601da177e4SLinus Torvalds 35611da177e4SLinus Torvalds *used = 0; 35621da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 35631da177e4SLinus Torvalds return -EIO; 35641da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3565c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3566c0eae66eSBenny Halevy if (unlikely(!p)) 3567c0eae66eSBenny Halevy goto out_overflow; 3568cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 35691da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3570409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 35711da177e4SLinus Torvalds } 35723110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 35731da177e4SLinus Torvalds (unsigned long long)*used); 3574409924e4STrond Myklebust return ret; 3575c0eae66eSBenny Halevy out_overflow: 3576c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3577c0eae66eSBenny Halevy return -EIO; 35781da177e4SLinus Torvalds } 35791da177e4SLinus Torvalds 35801da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 35811da177e4SLinus Torvalds { 35828687b63aSAl Viro __be32 *p; 35831da177e4SLinus Torvalds uint64_t sec; 35841da177e4SLinus Torvalds uint32_t nsec; 35851da177e4SLinus Torvalds 3586c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3587c0eae66eSBenny Halevy if (unlikely(!p)) 3588c0eae66eSBenny Halevy goto out_overflow; 35893ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3590cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 35911da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 35921da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 35931da177e4SLinus Torvalds return 0; 3594c0eae66eSBenny Halevy out_overflow: 3595c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3596c0eae66eSBenny Halevy return -EIO; 35971da177e4SLinus Torvalds } 35981da177e4SLinus Torvalds 35991da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36001da177e4SLinus Torvalds { 36011da177e4SLinus Torvalds int status = 0; 36021da177e4SLinus Torvalds 36031da177e4SLinus Torvalds time->tv_sec = 0; 36041da177e4SLinus Torvalds time->tv_nsec = 0; 36051da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 36061da177e4SLinus Torvalds return -EIO; 36071da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 36081da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3609409924e4STrond Myklebust if (status == 0) 3610409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 36111da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 36121da177e4SLinus Torvalds } 36133110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 36141da177e4SLinus Torvalds return status; 36151da177e4SLinus Torvalds } 36161da177e4SLinus Torvalds 36171da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36181da177e4SLinus Torvalds { 36191da177e4SLinus Torvalds int status = 0; 36201da177e4SLinus Torvalds 36211da177e4SLinus Torvalds time->tv_sec = 0; 36221da177e4SLinus Torvalds time->tv_nsec = 0; 36231da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 36241da177e4SLinus Torvalds return -EIO; 36251da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 36261da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3627409924e4STrond Myklebust if (status == 0) 3628409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 36291da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 36301da177e4SLinus Torvalds } 36313110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 36321da177e4SLinus Torvalds return status; 36331da177e4SLinus Torvalds } 36341da177e4SLinus Torvalds 363555b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 363655b6e774SRicardo Labiaga struct timespec *time) 363755b6e774SRicardo Labiaga { 363855b6e774SRicardo Labiaga int status = 0; 363955b6e774SRicardo Labiaga 364055b6e774SRicardo Labiaga time->tv_sec = 0; 364155b6e774SRicardo Labiaga time->tv_nsec = 0; 364255b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 364355b6e774SRicardo Labiaga return -EIO; 364455b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 364555b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 364655b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 364755b6e774SRicardo Labiaga } 364855b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 364955b6e774SRicardo Labiaga (long)time->tv_nsec); 365055b6e774SRicardo Labiaga return status; 365155b6e774SRicardo Labiaga } 365255b6e774SRicardo Labiaga 36531da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36541da177e4SLinus Torvalds { 36551da177e4SLinus Torvalds int status = 0; 36561da177e4SLinus Torvalds 36571da177e4SLinus Torvalds time->tv_sec = 0; 36581da177e4SLinus Torvalds time->tv_nsec = 0; 36591da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 36601da177e4SLinus Torvalds return -EIO; 36611da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 36621da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3663409924e4STrond Myklebust if (status == 0) 3664409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 36651da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 36661da177e4SLinus Torvalds } 36673110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 36681da177e4SLinus Torvalds return status; 36691da177e4SLinus Torvalds } 36701da177e4SLinus Torvalds 36718687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 36721da177e4SLinus Torvalds { 36731da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 36741da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 36751da177e4SLinus Torvalds 36761da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3677fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3678fe82a183SChuck Lever "%u %c %u\n", 36793110ff80SHarvey Harrison __func__, 36801da177e4SLinus Torvalds attrwords << 2, 36811da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 36821da177e4SLinus Torvalds nwords << 2); 36831da177e4SLinus Torvalds return -EIO; 36841da177e4SLinus Torvalds } 36851da177e4SLinus Torvalds return 0; 36861da177e4SLinus Torvalds } 36871da177e4SLinus Torvalds 36881da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36891da177e4SLinus Torvalds { 36908687b63aSAl Viro __be32 *p; 36911da177e4SLinus Torvalds 3692c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3693c0eae66eSBenny Halevy if (unlikely(!p)) 3694c0eae66eSBenny Halevy goto out_overflow; 36956f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 36963ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3697cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 36981da177e4SLinus Torvalds return 0; 3699c0eae66eSBenny Halevy out_overflow: 3700c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3701c0eae66eSBenny Halevy return -EIO; 37021da177e4SLinus Torvalds } 37031da177e4SLinus Torvalds 37041da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 37051da177e4SLinus Torvalds { 37068687b63aSAl Viro __be32 *p; 37071da177e4SLinus Torvalds uint32_t supp, acc; 37081da177e4SLinus Torvalds int status; 37091da177e4SLinus Torvalds 37101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 37111da177e4SLinus Torvalds if (status) 37121da177e4SLinus Torvalds return status; 3713c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3714c0eae66eSBenny Halevy if (unlikely(!p)) 3715c0eae66eSBenny Halevy goto out_overflow; 37166f723f77SBenny Halevy supp = be32_to_cpup(p++); 3717cccddf4fSBenny Halevy acc = be32_to_cpup(p); 37181da177e4SLinus Torvalds access->supported = supp; 37191da177e4SLinus Torvalds access->access = acc; 37201da177e4SLinus Torvalds return 0; 3721c0eae66eSBenny Halevy out_overflow: 3722c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3723c0eae66eSBenny Halevy return -EIO; 37241da177e4SLinus Torvalds } 37251da177e4SLinus Torvalds 372607d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 37271da177e4SLinus Torvalds { 37288687b63aSAl Viro __be32 *p; 372907d30434SBenny Halevy 373007d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 373107d30434SBenny Halevy if (likely(p)) { 373207d30434SBenny Halevy memcpy(buf, p, len); 373307d30434SBenny Halevy return 0; 373407d30434SBenny Halevy } 373507d30434SBenny Halevy print_overflow_msg(__func__, xdr); 373607d30434SBenny Halevy return -EIO; 373707d30434SBenny Halevy } 373807d30434SBenny Halevy 373907d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 374007d30434SBenny Halevy { 374107d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 37421da177e4SLinus Torvalds } 37431da177e4SLinus Torvalds 37441da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 37451da177e4SLinus Torvalds { 37461da177e4SLinus Torvalds int status; 37471da177e4SLinus Torvalds 37481da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3749c1d51931STrond Myklebust if (status != -EIO) 3750c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 375107d30434SBenny Halevy if (!status) 375207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 37531da177e4SLinus Torvalds return status; 37541da177e4SLinus Torvalds } 37551da177e4SLinus Torvalds 3756db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3757db942bbdSBenny Halevy { 3758db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 37591da177e4SLinus Torvalds } 37601da177e4SLinus Torvalds 37611da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 37621da177e4SLinus Torvalds { 37631da177e4SLinus Torvalds int status; 37641da177e4SLinus Torvalds 37651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3766db942bbdSBenny Halevy if (!status) 3767db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 37681da177e4SLinus Torvalds return status; 37691da177e4SLinus Torvalds } 37701da177e4SLinus Torvalds 37711da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 37721da177e4SLinus Torvalds { 37738687b63aSAl Viro __be32 *p; 37741da177e4SLinus Torvalds uint32_t bmlen; 37751da177e4SLinus Torvalds int status; 37761da177e4SLinus Torvalds 37771da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 37781da177e4SLinus Torvalds if (status) 37791da177e4SLinus Torvalds return status; 37801da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 37811da177e4SLinus Torvalds return status; 3782c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3783c0eae66eSBenny Halevy if (unlikely(!p)) 3784c0eae66eSBenny Halevy goto out_overflow; 3785cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3786c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3787c0eae66eSBenny Halevy if (likely(p)) 37881da177e4SLinus Torvalds return 0; 3789c0eae66eSBenny Halevy out_overflow: 3790c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3791c0eae66eSBenny Halevy return -EIO; 37921da177e4SLinus Torvalds } 37931da177e4SLinus Torvalds 37941da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 37951da177e4SLinus Torvalds { 37968687b63aSAl Viro __be32 *savep; 37976c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 37981da177e4SLinus Torvalds int status; 37991da177e4SLinus Torvalds 38001da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38011da177e4SLinus Torvalds goto xdr_error; 38021da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38031da177e4SLinus Torvalds goto xdr_error; 38041da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38051da177e4SLinus Torvalds goto xdr_error; 38061da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 38071da177e4SLinus Torvalds goto xdr_error; 38081da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 38091da177e4SLinus Torvalds goto xdr_error; 38101da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 38111da177e4SLinus Torvalds goto xdr_error; 38121da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 38131da177e4SLinus Torvalds goto xdr_error; 38141da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38151da177e4SLinus Torvalds xdr_error: 38163110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38171da177e4SLinus Torvalds return status; 38181da177e4SLinus Torvalds } 38191da177e4SLinus Torvalds 38201da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 38211da177e4SLinus Torvalds { 38228687b63aSAl Viro __be32 *savep; 38236c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 38241da177e4SLinus Torvalds int status; 38251da177e4SLinus Torvalds 38261da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38271da177e4SLinus Torvalds goto xdr_error; 38281da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38291da177e4SLinus Torvalds goto xdr_error; 38301da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38311da177e4SLinus Torvalds goto xdr_error; 38321da177e4SLinus Torvalds 38331da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 38341da177e4SLinus Torvalds goto xdr_error; 38351da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 38361da177e4SLinus Torvalds goto xdr_error; 38371da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 38381da177e4SLinus Torvalds goto xdr_error; 38391da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 38401da177e4SLinus Torvalds goto xdr_error; 38411da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 38421da177e4SLinus Torvalds goto xdr_error; 38431da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 38441da177e4SLinus Torvalds goto xdr_error; 38451da177e4SLinus Torvalds 38461da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38471da177e4SLinus Torvalds xdr_error: 38483110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38491da177e4SLinus Torvalds return status; 38501da177e4SLinus Torvalds } 38511da177e4SLinus Torvalds 38521da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 38531da177e4SLinus Torvalds { 38548687b63aSAl Viro __be32 *savep; 38556c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 38561da177e4SLinus Torvalds int status; 38571da177e4SLinus Torvalds 38581da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38591da177e4SLinus Torvalds goto xdr_error; 38601da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38611da177e4SLinus Torvalds goto xdr_error; 38621da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38631da177e4SLinus Torvalds goto xdr_error; 38641da177e4SLinus Torvalds 38651da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 38661da177e4SLinus Torvalds goto xdr_error; 38671da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 38681da177e4SLinus Torvalds goto xdr_error; 38691da177e4SLinus Torvalds 38701da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38711da177e4SLinus Torvalds xdr_error: 38723110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38731da177e4SLinus Torvalds return status; 38741da177e4SLinus Torvalds } 38751da177e4SLinus Torvalds 3876ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 3877ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 387880e52aceSTrond Myklebust const struct nfs_server *server, int may_sleep) 38791da177e4SLinus Torvalds { 3880bca79478STrond Myklebust int status; 3881bca79478STrond Myklebust umode_t fmode = 0; 388299baf625SManoj Naik uint64_t fileid; 3883ae42c70aSBryan Schumaker uint32_t type; 38841da177e4SLinus Torvalds 3885f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3886f26c7a78STrond Myklebust if (status < 0) 38871da177e4SLinus Torvalds goto xdr_error; 3888409924e4STrond Myklebust fattr->mode = 0; 3889409924e4STrond Myklebust if (status != 0) { 3890409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3891409924e4STrond Myklebust fattr->valid |= status; 3892409924e4STrond Myklebust } 38931da177e4SLinus Torvalds 3894f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3895f26c7a78STrond Myklebust if (status < 0) 38961da177e4SLinus Torvalds goto xdr_error; 3897409924e4STrond Myklebust fattr->valid |= status; 3898f26c7a78STrond Myklebust 3899f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3900f26c7a78STrond Myklebust if (status < 0) 39011da177e4SLinus Torvalds goto xdr_error; 3902409924e4STrond Myklebust fattr->valid |= status; 3903f26c7a78STrond Myklebust 3904f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3905f26c7a78STrond Myklebust if (status < 0) 39061da177e4SLinus Torvalds goto xdr_error; 3907409924e4STrond Myklebust fattr->valid |= status; 3908f26c7a78STrond Myklebust 3909ae42c70aSBryan Schumaker status = decode_attr_error(xdr, bitmap); 3910ae42c70aSBryan Schumaker if (status < 0) 3911ae42c70aSBryan Schumaker goto xdr_error; 3912ae42c70aSBryan Schumaker 3913ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 3914ae42c70aSBryan Schumaker if (status < 0) 3915ae42c70aSBryan Schumaker goto xdr_error; 3916ae42c70aSBryan Schumaker 3917f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3918f26c7a78STrond Myklebust if (status < 0) 39191da177e4SLinus Torvalds goto xdr_error; 3920409924e4STrond Myklebust fattr->valid |= status; 3921f26c7a78STrond Myklebust 3922f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 39237aaa0b3bSManoj Naik struct nfs4_fs_locations, 3924f26c7a78STrond Myklebust fattr)); 3925f26c7a78STrond Myklebust if (status < 0) 3926683b57b4STrond Myklebust goto xdr_error; 3927409924e4STrond Myklebust fattr->valid |= status; 3928f26c7a78STrond Myklebust 3929f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3930f26c7a78STrond Myklebust if (status < 0) 39311da177e4SLinus Torvalds goto xdr_error; 3932409924e4STrond Myklebust if (status != 0) { 39331da177e4SLinus Torvalds fattr->mode |= fmode; 3934409924e4STrond Myklebust fattr->valid |= status; 3935409924e4STrond Myklebust } 3936f26c7a78STrond Myklebust 3937f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3938f26c7a78STrond Myklebust if (status < 0) 39391da177e4SLinus Torvalds goto xdr_error; 3940409924e4STrond Myklebust fattr->valid |= status; 3941f26c7a78STrond Myklebust 394280e52aceSTrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, 394380e52aceSTrond Myklebust &fattr->uid, may_sleep); 3944f26c7a78STrond Myklebust if (status < 0) 39451da177e4SLinus Torvalds goto xdr_error; 3946409924e4STrond Myklebust fattr->valid |= status; 3947f26c7a78STrond Myklebust 394880e52aceSTrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, 394980e52aceSTrond Myklebust &fattr->gid, may_sleep); 3950f26c7a78STrond Myklebust if (status < 0) 39511da177e4SLinus Torvalds goto xdr_error; 3952409924e4STrond Myklebust fattr->valid |= status; 3953f26c7a78STrond Myklebust 3954f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3955f26c7a78STrond Myklebust if (status < 0) 39561da177e4SLinus Torvalds goto xdr_error; 3957409924e4STrond Myklebust fattr->valid |= status; 3958f26c7a78STrond Myklebust 3959f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3960f26c7a78STrond Myklebust if (status < 0) 39611da177e4SLinus Torvalds goto xdr_error; 3962409924e4STrond Myklebust fattr->valid |= status; 3963f26c7a78STrond Myklebust 3964f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3965f26c7a78STrond Myklebust if (status < 0) 39661da177e4SLinus Torvalds goto xdr_error; 3967409924e4STrond Myklebust fattr->valid |= status; 3968f26c7a78STrond Myklebust 3969f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3970f26c7a78STrond Myklebust if (status < 0) 39711da177e4SLinus Torvalds goto xdr_error; 3972409924e4STrond Myklebust fattr->valid |= status; 3973f26c7a78STrond Myklebust 3974f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3975f26c7a78STrond Myklebust if (status < 0) 39761da177e4SLinus Torvalds goto xdr_error; 3977409924e4STrond Myklebust fattr->valid |= status; 3978f26c7a78STrond Myklebust 3979f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3980f26c7a78STrond Myklebust if (status < 0) 398199baf625SManoj Naik goto xdr_error; 39823201f3ddSTrond Myklebust if (status != 0 && !(fattr->valid & status)) { 398399baf625SManoj Naik fattr->fileid = fileid; 3984409924e4STrond Myklebust fattr->valid |= status; 3985409924e4STrond Myklebust } 3986f26c7a78STrond Myklebust 3987ae42c70aSBryan Schumaker xdr_error: 3988ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 3989ae42c70aSBryan Schumaker return status; 3990ae42c70aSBryan Schumaker } 3991ae42c70aSBryan Schumaker 3992ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 3993ae42c70aSBryan Schumaker struct nfs_fh *fh, const struct nfs_server *server, int may_sleep) 3994ae42c70aSBryan Schumaker { 3995ae42c70aSBryan Schumaker __be32 *savep; 3996ae42c70aSBryan Schumaker uint32_t attrlen, 3997ae42c70aSBryan Schumaker bitmap[2] = {0}; 3998ae42c70aSBryan Schumaker int status; 3999ae42c70aSBryan Schumaker 4000ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4001ae42c70aSBryan Schumaker if (status < 0) 4002ae42c70aSBryan Schumaker goto xdr_error; 4003ae42c70aSBryan Schumaker 4004ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4005ae42c70aSBryan Schumaker if (status < 0) 4006ae42c70aSBryan Schumaker goto xdr_error; 4007ae42c70aSBryan Schumaker 4008ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4009ae42c70aSBryan Schumaker if (status < 0) 4010ae42c70aSBryan Schumaker goto xdr_error; 4011ae42c70aSBryan Schumaker 4012ae42c70aSBryan Schumaker status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep); 4013ae42c70aSBryan Schumaker if (status < 0) 4014ae42c70aSBryan Schumaker goto xdr_error; 4015ae42c70aSBryan Schumaker 4016f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 40171da177e4SLinus Torvalds xdr_error: 40183110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 40191da177e4SLinus Torvalds return status; 40201da177e4SLinus Torvalds } 40211da177e4SLinus Torvalds 4022ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4023ae42c70aSBryan Schumaker const struct nfs_server *server, int may_sleep) 4024ae42c70aSBryan Schumaker { 4025ae42c70aSBryan Schumaker return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep); 4026ae42c70aSBryan Schumaker } 40271da177e4SLinus Torvalds 4028504913fbSAndy Adamson /* 4029504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4030504913fbSAndy Adamson * one layout driver per file system. 4031504913fbSAndy Adamson */ 4032504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4033504913fbSAndy Adamson uint32_t *layouttype) 4034504913fbSAndy Adamson { 4035504913fbSAndy Adamson uint32_t *p; 4036504913fbSAndy Adamson int num; 4037504913fbSAndy Adamson 4038504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4039504913fbSAndy Adamson if (unlikely(!p)) 4040504913fbSAndy Adamson goto out_overflow; 4041504913fbSAndy Adamson num = be32_to_cpup(p); 4042504913fbSAndy Adamson 4043504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4044504913fbSAndy Adamson if (num == 0) { 4045504913fbSAndy Adamson *layouttype = 0; 4046504913fbSAndy Adamson return 0; 4047504913fbSAndy Adamson } 4048504913fbSAndy Adamson if (num > 1) 4049504913fbSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers " 4050504913fbSAndy Adamson "per filesystem not supported\n", __func__); 4051504913fbSAndy Adamson 4052504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4053504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4054504913fbSAndy Adamson if (unlikely(!p)) 4055504913fbSAndy Adamson goto out_overflow; 4056504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4057504913fbSAndy Adamson return 0; 4058504913fbSAndy Adamson out_overflow: 4059504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4060504913fbSAndy Adamson return -EIO; 4061504913fbSAndy Adamson } 4062504913fbSAndy Adamson 4063504913fbSAndy Adamson /* 4064504913fbSAndy Adamson * The type of file system exported. 4065504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4066504913fbSAndy Adamson */ 4067504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4068504913fbSAndy Adamson uint32_t *layouttype) 4069504913fbSAndy Adamson { 4070504913fbSAndy Adamson int status = 0; 4071504913fbSAndy Adamson 4072504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4073504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4074504913fbSAndy Adamson return -EIO; 4075504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4076504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4077504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4078504913fbSAndy Adamson } else 4079504913fbSAndy Adamson *layouttype = 0; 4080504913fbSAndy Adamson return status; 4081504913fbSAndy Adamson } 4082504913fbSAndy Adamson 40831da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 40841da177e4SLinus Torvalds { 40858687b63aSAl Viro __be32 *savep; 40861da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 40871da177e4SLinus Torvalds int status; 40881da177e4SLinus Torvalds 40891da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 40901da177e4SLinus Torvalds goto xdr_error; 40911da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 40921da177e4SLinus Torvalds goto xdr_error; 40931da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 40941da177e4SLinus Torvalds goto xdr_error; 40951da177e4SLinus Torvalds 40961da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 40971da177e4SLinus Torvalds 40981da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 40991da177e4SLinus Torvalds goto xdr_error; 41001da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 41011da177e4SLinus Torvalds goto xdr_error; 41021da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 41031da177e4SLinus Torvalds goto xdr_error; 41041da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 41051da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 41061da177e4SLinus Torvalds goto xdr_error; 41071da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 410855b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 410955b6e774SRicardo Labiaga if (status != 0) 411055b6e774SRicardo Labiaga goto xdr_error; 4111504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4112504913fbSAndy Adamson if (status != 0) 4113504913fbSAndy Adamson goto xdr_error; 41141da177e4SLinus Torvalds 41151da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 41161da177e4SLinus Torvalds xdr_error: 41173110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 41181da177e4SLinus Torvalds return status; 41191da177e4SLinus Torvalds } 41201da177e4SLinus Torvalds 41211da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 41221da177e4SLinus Torvalds { 41238687b63aSAl Viro __be32 *p; 41241da177e4SLinus Torvalds uint32_t len; 41251da177e4SLinus Torvalds int status; 41261da177e4SLinus Torvalds 41279936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 41289936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 41299936781dSTrond Myklebust 41301da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 41311da177e4SLinus Torvalds if (status) 41321da177e4SLinus Torvalds return status; 41331da177e4SLinus Torvalds 4134c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4135c0eae66eSBenny Halevy if (unlikely(!p)) 4136c0eae66eSBenny Halevy goto out_overflow; 4137cccddf4fSBenny Halevy len = be32_to_cpup(p); 41381da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 41391da177e4SLinus Torvalds return -EIO; 41401da177e4SLinus Torvalds fh->size = len; 4141c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4142c0eae66eSBenny Halevy if (unlikely(!p)) 4143c0eae66eSBenny Halevy goto out_overflow; 414499398d06SBenny Halevy memcpy(fh->data, p, len); 41451da177e4SLinus Torvalds return 0; 4146c0eae66eSBenny Halevy out_overflow: 4147c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4148c0eae66eSBenny Halevy return -EIO; 41491da177e4SLinus Torvalds } 41501da177e4SLinus Torvalds 41511da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41521da177e4SLinus Torvalds { 41531da177e4SLinus Torvalds int status; 41541da177e4SLinus Torvalds 41551da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 41561da177e4SLinus Torvalds if (status) 41571da177e4SLinus Torvalds return status; 41581da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 41591da177e4SLinus Torvalds } 41601da177e4SLinus Torvalds 41611da177e4SLinus Torvalds /* 41621da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 41631da177e4SLinus Torvalds */ 4164911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 41651da177e4SLinus Torvalds { 4166911d1aafSTrond Myklebust uint64_t offset, length, clientid; 41678687b63aSAl Viro __be32 *p; 4168911d1aafSTrond Myklebust uint32_t namelen, type; 41691da177e4SLinus Torvalds 4170babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4171c0eae66eSBenny Halevy if (unlikely(!p)) 4172c0eae66eSBenny Halevy goto out_overflow; 4173babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 41743ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4175babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4176babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4177911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4178911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4179911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4180911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4181911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4182911d1aafSTrond Myklebust if (type & 1) 4183911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4184911d1aafSTrond Myklebust fl->fl_pid = 0; 4185911d1aafSTrond Myklebust } 4186babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4187babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4188babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4189c0eae66eSBenny Halevy if (likely(p)) 41901da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4191c0eae66eSBenny Halevy out_overflow: 4192c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4193c0eae66eSBenny Halevy return -EIO; 41941da177e4SLinus Torvalds } 41951da177e4SLinus Torvalds 4196911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 41971da177e4SLinus Torvalds { 41981da177e4SLinus Torvalds int status; 41991da177e4SLinus Torvalds 42001da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4201c1d51931STrond Myklebust if (status == -EIO) 4202c1d51931STrond Myklebust goto out; 42031da177e4SLinus Torvalds if (status == 0) { 420407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 420507d30434SBenny Halevy if (unlikely(status)) 420607d30434SBenny Halevy goto out; 42071da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4208c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4209c1d51931STrond Myklebust if (res->open_seqid != NULL) 4210c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4211c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4212c1d51931STrond Myklebust out: 42131da177e4SLinus Torvalds return status; 42141da177e4SLinus Torvalds } 42151da177e4SLinus Torvalds 4216911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 42171da177e4SLinus Torvalds { 42181da177e4SLinus Torvalds int status; 42191da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 42201da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4221911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 42221da177e4SLinus Torvalds return status; 42231da177e4SLinus Torvalds } 42241da177e4SLinus Torvalds 4225911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 42261da177e4SLinus Torvalds { 42271da177e4SLinus Torvalds int status; 42281da177e4SLinus Torvalds 42291da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4230c1d51931STrond Myklebust if (status != -EIO) 4231c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 423207d30434SBenny Halevy if (status == 0) 423307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 42341da177e4SLinus Torvalds return status; 42351da177e4SLinus Torvalds } 42361da177e4SLinus Torvalds 4237d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4238d3c7b7ccSTrond Myklebust { 4239d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4240d3c7b7ccSTrond Myklebust } 4241d3c7b7ccSTrond Myklebust 42421da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 42431da177e4SLinus Torvalds { 42441da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 42451da177e4SLinus Torvalds } 42461da177e4SLinus Torvalds 42471da177e4SLinus Torvalds /* This is too sick! */ 42481da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 42491da177e4SLinus Torvalds { 42508687b63aSAl Viro __be32 *p; 42511da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 42521da177e4SLinus Torvalds 4253c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4254c0eae66eSBenny Halevy if (unlikely(!p)) 4255c0eae66eSBenny Halevy goto out_overflow; 42566f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 42571da177e4SLinus Torvalds switch (limit_type) { 42581da177e4SLinus Torvalds case 1: 4259cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 42601da177e4SLinus Torvalds break; 42611da177e4SLinus Torvalds case 2: 42626f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4263cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 42641da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 42651da177e4SLinus Torvalds } 42661da177e4SLinus Torvalds return 0; 4267c0eae66eSBenny Halevy out_overflow: 4268c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4269c0eae66eSBenny Halevy return -EIO; 42701da177e4SLinus Torvalds } 42711da177e4SLinus Torvalds 42721da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 42731da177e4SLinus Torvalds { 42748687b63aSAl Viro __be32 *p; 42751da177e4SLinus Torvalds uint32_t delegation_type; 427607d30434SBenny Halevy int status; 42771da177e4SLinus Torvalds 4278c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4279c0eae66eSBenny Halevy if (unlikely(!p)) 4280c0eae66eSBenny Halevy goto out_overflow; 4281cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 42821da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 42831da177e4SLinus Torvalds res->delegation_type = 0; 42841da177e4SLinus Torvalds return 0; 42851da177e4SLinus Torvalds } 428607d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 428707d30434SBenny Halevy if (unlikely(status)) 428807d30434SBenny Halevy return status; 4289c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4290c0eae66eSBenny Halevy if (unlikely(!p)) 4291c0eae66eSBenny Halevy goto out_overflow; 4292cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 429305d564feSAndy Adamson 42941da177e4SLinus Torvalds switch (delegation_type) { 42951da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 42961da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 42971da177e4SLinus Torvalds break; 42981da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 42991da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 43001da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 43011da177e4SLinus Torvalds return -EIO; 43021da177e4SLinus Torvalds } 43037539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4304c0eae66eSBenny Halevy out_overflow: 4305c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4306c0eae66eSBenny Halevy return -EIO; 43071da177e4SLinus Torvalds } 43081da177e4SLinus Torvalds 43091da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 43101da177e4SLinus Torvalds { 43118687b63aSAl Viro __be32 *p; 4312aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 43131da177e4SLinus Torvalds int status; 43141da177e4SLinus Torvalds 43151da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4316c1d51931STrond Myklebust if (status != -EIO) 4317c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 431807d30434SBenny Halevy if (!status) 431907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 432007d30434SBenny Halevy if (unlikely(status)) 43211da177e4SLinus Torvalds return status; 43221da177e4SLinus Torvalds 43231da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 43241da177e4SLinus Torvalds 4325c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4326c0eae66eSBenny Halevy if (unlikely(!p)) 4327c0eae66eSBenny Halevy goto out_overflow; 43286f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4329cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 43301da177e4SLinus Torvalds if (bmlen > 10) 43311da177e4SLinus Torvalds goto xdr_error; 43321da177e4SLinus Torvalds 4333c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4334c0eae66eSBenny Halevy if (unlikely(!p)) 4335c0eae66eSBenny Halevy goto out_overflow; 4336aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4337aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 43386f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4339aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4340aa53ed54SJeff Layton res->attrset[i] = 0; 4341aa53ed54SJeff Layton 43421da177e4SLinus Torvalds return decode_delegation(xdr, res); 43431da177e4SLinus Torvalds xdr_error: 43443110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 43451da177e4SLinus Torvalds return -EIO; 4346c0eae66eSBenny Halevy out_overflow: 4347c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4348c0eae66eSBenny Halevy return -EIO; 43491da177e4SLinus Torvalds } 43501da177e4SLinus Torvalds 43511da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 43521da177e4SLinus Torvalds { 43531da177e4SLinus Torvalds int status; 43541da177e4SLinus Torvalds 43551da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4356c1d51931STrond Myklebust if (status != -EIO) 4357c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 435807d30434SBenny Halevy if (!status) 435907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43601da177e4SLinus Torvalds return status; 43611da177e4SLinus Torvalds } 43621da177e4SLinus Torvalds 43631da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 43641da177e4SLinus Torvalds { 43651da177e4SLinus Torvalds int status; 43661da177e4SLinus Torvalds 43671da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4368c1d51931STrond Myklebust if (status != -EIO) 4369c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 437007d30434SBenny Halevy if (!status) 437107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43721da177e4SLinus Torvalds return status; 43731da177e4SLinus Torvalds } 43741da177e4SLinus Torvalds 43751da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 43761da177e4SLinus Torvalds { 43771da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 43781da177e4SLinus Torvalds } 43791da177e4SLinus Torvalds 43801da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 43811da177e4SLinus Torvalds { 43821da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 43831da177e4SLinus Torvalds } 43841da177e4SLinus Torvalds 43851da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 43861da177e4SLinus Torvalds { 43871da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 43888687b63aSAl Viro __be32 *p; 43891da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 43901da177e4SLinus Torvalds int status; 43911da177e4SLinus Torvalds 43921da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 43931da177e4SLinus Torvalds if (status) 43941da177e4SLinus Torvalds return status; 4395c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4396c0eae66eSBenny Halevy if (unlikely(!p)) 4397c0eae66eSBenny Halevy goto out_overflow; 43986f723f77SBenny Halevy eof = be32_to_cpup(p++); 4399cccddf4fSBenny Halevy count = be32_to_cpup(p); 44008111f373SChuck Lever hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 44011da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 44021da177e4SLinus Torvalds if (count > recvd) { 4403fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 44041da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 44051da177e4SLinus Torvalds count = recvd; 44061da177e4SLinus Torvalds eof = 0; 44071da177e4SLinus Torvalds } 44081da177e4SLinus Torvalds xdr_read_pages(xdr, count); 44091da177e4SLinus Torvalds res->eof = eof; 44101da177e4SLinus Torvalds res->count = count; 44111da177e4SLinus Torvalds return 0; 4412c0eae66eSBenny Halevy out_overflow: 4413c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4414c0eae66eSBenny Halevy return -EIO; 44151da177e4SLinus Torvalds } 44161da177e4SLinus Torvalds 44171da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 44181da177e4SLinus Torvalds { 44191da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 44201da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4421bcecff77SChuck Lever size_t hdrlen; 4422bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 4423bcecff77SChuck Lever int status; 44241da177e4SLinus Torvalds 44251da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4426db942bbdSBenny Halevy if (!status) 4427db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4428db942bbdSBenny Halevy if (unlikely(status)) 44291da177e4SLinus Torvalds return status; 443044109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 443144109241SFred Isaman __func__, 4432eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4433eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4434eadf4598STrond Myklebust 44351da177e4SLinus Torvalds 4436db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 44371da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 44381da177e4SLinus Torvalds if (pglen > recvd) 44391da177e4SLinus Torvalds pglen = recvd; 44401da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 44411da177e4SLinus Torvalds 44427bda2cdfSJeff Layton 4443ac396128STrond Myklebust return pglen; 44441da177e4SLinus Torvalds } 44451da177e4SLinus Torvalds 44461da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 44471da177e4SLinus Torvalds { 44481da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 44491da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4450bcecff77SChuck Lever size_t hdrlen; 4451bcecff77SChuck Lever u32 len, recvd; 44528687b63aSAl Viro __be32 *p; 44531da177e4SLinus Torvalds int status; 44541da177e4SLinus Torvalds 44551da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 44561da177e4SLinus Torvalds if (status) 44571da177e4SLinus Torvalds return status; 44581da177e4SLinus Torvalds 44591da177e4SLinus Torvalds /* Convert length of symlink */ 4460c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4461c0eae66eSBenny Halevy if (unlikely(!p)) 4462c0eae66eSBenny Halevy goto out_overflow; 4463cccddf4fSBenny Halevy len = be32_to_cpup(p); 44641da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4465fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 44661da177e4SLinus Torvalds return -ENAMETOOLONG; 44671da177e4SLinus Torvalds } 44681da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 44691da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 44701da177e4SLinus Torvalds if (recvd < len) { 4471fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 44721da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 44731da177e4SLinus Torvalds return -EIO; 44741da177e4SLinus Torvalds } 44751da177e4SLinus Torvalds xdr_read_pages(xdr, len); 44761da177e4SLinus Torvalds /* 44771da177e4SLinus Torvalds * The XDR encode routine has set things up so that 44781da177e4SLinus Torvalds * the link text will be copied directly into the 44791da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 44801da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 44811da177e4SLinus Torvalds * null-termination). 44821da177e4SLinus Torvalds */ 4483b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 44841da177e4SLinus Torvalds return 0; 4485c0eae66eSBenny Halevy out_overflow: 4486c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4487c0eae66eSBenny Halevy return -EIO; 44881da177e4SLinus Torvalds } 44891da177e4SLinus Torvalds 44901da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 44911da177e4SLinus Torvalds { 44921da177e4SLinus Torvalds int status; 44931da177e4SLinus Torvalds 44941da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 44951da177e4SLinus Torvalds if (status) 44961da177e4SLinus Torvalds goto out; 44971da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 44981da177e4SLinus Torvalds out: 44991da177e4SLinus Torvalds return status; 45001da177e4SLinus Torvalds } 45011da177e4SLinus Torvalds 45021da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 45031da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 45041da177e4SLinus Torvalds { 45051da177e4SLinus Torvalds int status; 45061da177e4SLinus Torvalds 45071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 45081da177e4SLinus Torvalds if (status) 45091da177e4SLinus Torvalds goto out; 45101da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 45111da177e4SLinus Torvalds goto out; 45121da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 45131da177e4SLinus Torvalds out: 45141da177e4SLinus Torvalds return status; 45151da177e4SLinus Torvalds } 45161da177e4SLinus Torvalds 45171da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 45181da177e4SLinus Torvalds { 45191da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 45201da177e4SLinus Torvalds } 45211da177e4SLinus Torvalds 452256ae19f3STrond Myklebust static int 452356ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 452456ae19f3STrond Myklebust { 452556ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 452656ae19f3STrond Myklebust } 452756ae19f3STrond Myklebust 4528029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4529029d105eSJ. Bruce Fields size_t *acl_len) 4530029d105eSJ. Bruce Fields { 45318687b63aSAl Viro __be32 *savep; 4532029d105eSJ. Bruce Fields uint32_t attrlen, 4533029d105eSJ. Bruce Fields bitmap[2] = {0}; 4534029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4535029d105eSJ. Bruce Fields int status; 4536029d105eSJ. Bruce Fields 4537029d105eSJ. Bruce Fields *acl_len = 0; 4538029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4539029d105eSJ. Bruce Fields goto out; 4540029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4541029d105eSJ. Bruce Fields goto out; 4542029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4543029d105eSJ. Bruce Fields goto out; 4544029d105eSJ. Bruce Fields 4545029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4546029d105eSJ. Bruce Fields return -EIO; 4547029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4548bcecff77SChuck Lever size_t hdrlen; 4549bcecff77SChuck Lever u32 recvd; 4550029d105eSJ. Bruce Fields 4551029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4552029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4553029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4554029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4555029d105eSJ. Bruce Fields if (attrlen > recvd) { 4556fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4557029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4558029d105eSJ. Bruce Fields attrlen, recvd); 4559029d105eSJ. Bruce Fields return -EINVAL; 4560029d105eSJ. Bruce Fields } 4561029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4562029d105eSJ. Bruce Fields *acl_len = attrlen; 45638c233cf9SJ. Bruce Fields } else 45648c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4565029d105eSJ. Bruce Fields 4566029d105eSJ. Bruce Fields out: 4567029d105eSJ. Bruce Fields return status; 4568029d105eSJ. Bruce Fields } 4569029d105eSJ. Bruce Fields 45701da177e4SLinus Torvalds static int 45711da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 45721da177e4SLinus Torvalds { 45731da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 45741da177e4SLinus Torvalds } 45751da177e4SLinus Torvalds 45769e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 45771da177e4SLinus Torvalds { 45788687b63aSAl Viro __be32 *p; 45791da177e4SLinus Torvalds uint32_t bmlen; 45801da177e4SLinus Torvalds int status; 45811da177e4SLinus Torvalds 45821da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 45831da177e4SLinus Torvalds if (status) 45841da177e4SLinus Torvalds return status; 4585c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4586c0eae66eSBenny Halevy if (unlikely(!p)) 4587c0eae66eSBenny Halevy goto out_overflow; 4588cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4589c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4590c0eae66eSBenny Halevy if (likely(p)) 45911da177e4SLinus Torvalds return 0; 4592c0eae66eSBenny Halevy out_overflow: 4593c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4594c0eae66eSBenny Halevy return -EIO; 45951da177e4SLinus Torvalds } 45961da177e4SLinus Torvalds 4597bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 45981da177e4SLinus Torvalds { 45998687b63aSAl Viro __be32 *p; 46001da177e4SLinus Torvalds uint32_t opnum; 46011da177e4SLinus Torvalds int32_t nfserr; 46021da177e4SLinus Torvalds 4603c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4604c0eae66eSBenny Halevy if (unlikely(!p)) 4605c0eae66eSBenny Halevy goto out_overflow; 46066f723f77SBenny Halevy opnum = be32_to_cpup(p++); 46071da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4608fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 46091da177e4SLinus Torvalds " %d\n", opnum); 46101da177e4SLinus Torvalds return -EIO; 46111da177e4SLinus Torvalds } 4612cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 46131da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4614c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4615c0eae66eSBenny Halevy if (unlikely(!p)) 4616c0eae66eSBenny Halevy goto out_overflow; 4617bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 4618bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 46191da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 46201da177e4SLinus Torvalds uint32_t len; 46211da177e4SLinus Torvalds 46221da177e4SLinus Torvalds /* skip netid string */ 4623c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4624c0eae66eSBenny Halevy if (unlikely(!p)) 4625c0eae66eSBenny Halevy goto out_overflow; 4626cccddf4fSBenny Halevy len = be32_to_cpup(p); 4627c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4628c0eae66eSBenny Halevy if (unlikely(!p)) 4629c0eae66eSBenny Halevy goto out_overflow; 46301da177e4SLinus Torvalds 46311da177e4SLinus Torvalds /* skip uaddr string */ 4632c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4633c0eae66eSBenny Halevy if (unlikely(!p)) 4634c0eae66eSBenny Halevy goto out_overflow; 4635cccddf4fSBenny Halevy len = be32_to_cpup(p); 4636c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4637c0eae66eSBenny Halevy if (unlikely(!p)) 4638c0eae66eSBenny Halevy goto out_overflow; 46391da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 46401da177e4SLinus Torvalds } else 4641856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 46421da177e4SLinus Torvalds 46431da177e4SLinus Torvalds return 0; 4644c0eae66eSBenny Halevy out_overflow: 4645c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4646c0eae66eSBenny Halevy return -EIO; 46471da177e4SLinus Torvalds } 46481da177e4SLinus Torvalds 46491da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 46501da177e4SLinus Torvalds { 46511da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 46521da177e4SLinus Torvalds } 46531da177e4SLinus Torvalds 46541da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 46551da177e4SLinus Torvalds { 46568687b63aSAl Viro __be32 *p; 46571da177e4SLinus Torvalds int status; 46581da177e4SLinus Torvalds 46591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 46601da177e4SLinus Torvalds if (status) 46611da177e4SLinus Torvalds return status; 46621da177e4SLinus Torvalds 4663c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4664c0eae66eSBenny Halevy if (unlikely(!p)) 4665c0eae66eSBenny Halevy goto out_overflow; 46666f723f77SBenny Halevy res->count = be32_to_cpup(p++); 46676f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 466899398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 46691da177e4SLinus Torvalds return 0; 4670c0eae66eSBenny Halevy out_overflow: 4671c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4672c0eae66eSBenny Halevy return -EIO; 46731da177e4SLinus Torvalds } 46741da177e4SLinus Torvalds 46751da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 46761da177e4SLinus Torvalds { 46771da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 46781da177e4SLinus Torvalds } 46791da177e4SLinus Torvalds 468099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 468199fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 468299fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 468399fe60d0SBenny Halevy { 468499fe60d0SBenny Halevy __be32 *p; 468599fe60d0SBenny Halevy uint32_t dummy; 46862460ba57SBenny Halevy char *dummy_str; 468799fe60d0SBenny Halevy int status; 468899fe60d0SBenny Halevy struct nfs_client *clp = res->client; 468999fe60d0SBenny Halevy 469099fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 469199fe60d0SBenny Halevy if (status) 469299fe60d0SBenny Halevy return status; 469399fe60d0SBenny Halevy 4694c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4695c0eae66eSBenny Halevy if (unlikely(!p)) 4696c0eae66eSBenny Halevy goto out_overflow; 4697cccddf4fSBenny Halevy xdr_decode_hyper(p, &clp->cl_ex_clid); 4698c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4699c0eae66eSBenny Halevy if (unlikely(!p)) 4700c0eae66eSBenny Halevy goto out_overflow; 47016f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 47026f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 470399fe60d0SBenny Halevy 470499fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4705cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 470699fe60d0SBenny Halevy if (dummy != SP4_NONE) 470799fe60d0SBenny Halevy return -EIO; 470899fe60d0SBenny Halevy 470999fe60d0SBenny Halevy /* Throw away minor_id */ 4710c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4711c0eae66eSBenny Halevy if (unlikely(!p)) 4712c0eae66eSBenny Halevy goto out_overflow; 471399fe60d0SBenny Halevy 471499fe60d0SBenny Halevy /* Throw away Major id */ 47152460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47162460ba57SBenny Halevy if (unlikely(status)) 47172460ba57SBenny Halevy return status; 471899fe60d0SBenny Halevy 471999fe60d0SBenny Halevy /* Throw away server_scope */ 47202460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47212460ba57SBenny Halevy if (unlikely(status)) 47222460ba57SBenny Halevy return status; 472399fe60d0SBenny Halevy 472499fe60d0SBenny Halevy /* Throw away Implementation id array */ 47252460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47262460ba57SBenny Halevy if (unlikely(status)) 47272460ba57SBenny Halevy return status; 472899fe60d0SBenny Halevy 472999fe60d0SBenny Halevy return 0; 4730c0eae66eSBenny Halevy out_overflow: 4731c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4732c0eae66eSBenny Halevy return -EIO; 473399fe60d0SBenny Halevy } 4734fc931582SAndy Adamson 4735fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4736fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4737fc931582SAndy Adamson { 4738fc931582SAndy Adamson __be32 *p; 4739fc931582SAndy Adamson u32 nr_attrs; 4740fc931582SAndy Adamson 4741c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4742c0eae66eSBenny Halevy if (unlikely(!p)) 4743c0eae66eSBenny Halevy goto out_overflow; 47446f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 47456f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 47466f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 47476f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 47486f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 47496f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4750cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4751fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4752fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4753fc931582SAndy Adamson __func__, nr_attrs); 4754fc931582SAndy Adamson return -EINVAL; 4755fc931582SAndy Adamson } 4756c0eae66eSBenny Halevy if (nr_attrs == 1) { 4757c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4758c0eae66eSBenny Halevy if (unlikely(!p)) 4759c0eae66eSBenny Halevy goto out_overflow; 4760c0eae66eSBenny Halevy } 4761fc931582SAndy Adamson return 0; 4762c0eae66eSBenny Halevy out_overflow: 4763c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4764c0eae66eSBenny Halevy return -EIO; 4765fc931582SAndy Adamson } 4766fc931582SAndy Adamson 4767e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4768e78291e4SBenny Halevy { 4769e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4770fc931582SAndy Adamson } 4771fc931582SAndy Adamson 4772fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4773fc931582SAndy Adamson struct nfs41_create_session_res *res) 4774fc931582SAndy Adamson { 4775fc931582SAndy Adamson __be32 *p; 4776fc931582SAndy Adamson int status; 4777fc931582SAndy Adamson struct nfs_client *clp = res->client; 4778fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4779fc931582SAndy Adamson 4780fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4781e78291e4SBenny Halevy if (!status) 4782e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4783e78291e4SBenny Halevy if (unlikely(status)) 4784fc931582SAndy Adamson return status; 4785fc931582SAndy Adamson 4786fc931582SAndy Adamson /* seqid, flags */ 4787c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4788c0eae66eSBenny Halevy if (unlikely(!p)) 4789c0eae66eSBenny Halevy goto out_overflow; 47906f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4791cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4792fc931582SAndy Adamson 4793fc931582SAndy Adamson /* Channel attributes */ 4794fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4795fc931582SAndy Adamson if (!status) 4796fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4797fc931582SAndy Adamson return status; 4798c0eae66eSBenny Halevy out_overflow: 4799c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4800c0eae66eSBenny Halevy return -EIO; 4801fc931582SAndy Adamson } 48020f3e66c6SAndy Adamson 48030f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 48040f3e66c6SAndy Adamson { 48050f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 48060f3e66c6SAndy Adamson } 480718019753SRicardo Labiaga 480818019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 480918019753SRicardo Labiaga { 481018019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 481118019753SRicardo Labiaga } 481299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 481399fe60d0SBenny Halevy 48149b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 48159b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 48169b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 48179b7b9fccSAndy Adamson { 48189b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4819fc01cea9SAndy Adamson struct nfs4_sessionid id; 4820fc01cea9SAndy Adamson u32 dummy; 4821fc01cea9SAndy Adamson int status; 4822fc01cea9SAndy Adamson __be32 *p; 4823fc01cea9SAndy Adamson 48249b7b9fccSAndy Adamson if (!res->sr_session) 48259b7b9fccSAndy Adamson return 0; 48269b7b9fccSAndy Adamson 4827fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4828e78291e4SBenny Halevy if (!status) 4829e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 4830e78291e4SBenny Halevy if (unlikely(status)) 4831fc01cea9SAndy Adamson goto out_err; 48329b7b9fccSAndy Adamson 4833fc01cea9SAndy Adamson /* 4834fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4835fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4836fc01cea9SAndy Adamson */ 4837fdcb4577STrond Myklebust status = -EREMOTEIO; 4838fc01cea9SAndy Adamson 4839fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4840fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4841fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4842fc01cea9SAndy Adamson goto out_err; 4843fc01cea9SAndy Adamson } 4844e78291e4SBenny Halevy 4845c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4846c0eae66eSBenny Halevy if (unlikely(!p)) 4847c0eae66eSBenny Halevy goto out_overflow; 4848e78291e4SBenny Halevy 4849fc01cea9SAndy Adamson /* seqid */ 48506f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4851dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 4852fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4853fc01cea9SAndy Adamson goto out_err; 4854fc01cea9SAndy Adamson } 4855fc01cea9SAndy Adamson /* slot id */ 48566f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4857dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 4858fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4859fc01cea9SAndy Adamson goto out_err; 4860fc01cea9SAndy Adamson } 4861fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 48626f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4863fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 48646f723f77SBenny Halevy dummy = be32_to_cpup(p++); 48650629e370SAlexandros Batsakis /* result flags */ 48660629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 4867fc01cea9SAndy Adamson status = 0; 4868fc01cea9SAndy Adamson out_err: 4869fc01cea9SAndy Adamson res->sr_status = status; 4870fc01cea9SAndy Adamson return status; 4871c0eae66eSBenny Halevy out_overflow: 4872c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4873c0eae66eSBenny Halevy status = -EIO; 4874c0eae66eSBenny Halevy goto out_err; 4875fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 48769b7b9fccSAndy Adamson return 0; 4877fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 48789b7b9fccSAndy Adamson } 48799b7b9fccSAndy Adamson 4880b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 4881b1f69b75SAndy Adamson 4882b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 4883b1f69b75SAndy Adamson struct pnfs_device *pdev) 4884b1f69b75SAndy Adamson { 4885b1f69b75SAndy Adamson __be32 *p; 4886b1f69b75SAndy Adamson uint32_t len, type; 4887b1f69b75SAndy Adamson int status; 4888b1f69b75SAndy Adamson 4889b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 4890b1f69b75SAndy Adamson if (status) { 4891b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 4892b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 4893b1f69b75SAndy Adamson if (unlikely(!p)) 4894b1f69b75SAndy Adamson goto out_overflow; 4895b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 4896b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 4897b1f69b75SAndy Adamson __func__, pdev->mincount); 4898b1f69b75SAndy Adamson } 4899b1f69b75SAndy Adamson return status; 4900b1f69b75SAndy Adamson } 4901b1f69b75SAndy Adamson 4902b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 4903b1f69b75SAndy Adamson if (unlikely(!p)) 4904b1f69b75SAndy Adamson goto out_overflow; 4905b1f69b75SAndy Adamson type = be32_to_cpup(p++); 4906b1f69b75SAndy Adamson if (type != pdev->layout_type) { 4907b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 4908b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 4909b1f69b75SAndy Adamson return -EINVAL; 4910b1f69b75SAndy Adamson } 4911b1f69b75SAndy Adamson /* 4912b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 4913b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 4914b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 4915b1f69b75SAndy Adamson */ 4916b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 4917b1f69b75SAndy Adamson xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ 4918b1f69b75SAndy Adamson 4919b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 4920b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 4921b1f69b75SAndy Adamson if (unlikely(!p)) 4922b1f69b75SAndy Adamson goto out_overflow; 4923b1f69b75SAndy Adamson len = be32_to_cpup(p); 4924b1f69b75SAndy Adamson if (len) { 4925ead00597SChuck Lever uint32_t i; 4926b1f69b75SAndy Adamson 4927b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 4928b1f69b75SAndy Adamson if (unlikely(!p)) 4929b1f69b75SAndy Adamson goto out_overflow; 4930b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 4931b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 4932b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 4933b1f69b75SAndy Adamson __func__); 4934b1f69b75SAndy Adamson return -EIO; 4935b1f69b75SAndy Adamson } 4936b1f69b75SAndy Adamson } 4937b1f69b75SAndy Adamson } 4938b1f69b75SAndy Adamson return 0; 4939b1f69b75SAndy Adamson out_overflow: 4940b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 4941b1f69b75SAndy Adamson return -EIO; 4942b1f69b75SAndy Adamson } 4943b1f69b75SAndy Adamson 4944b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 4945b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 4946b1f69b75SAndy Adamson { 4947b1f69b75SAndy Adamson __be32 *p; 4948b1f69b75SAndy Adamson int status; 4949b1f69b75SAndy Adamson u32 layout_count; 4950b1f69b75SAndy Adamson 4951b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 4952b1f69b75SAndy Adamson if (status) 4953b1f69b75SAndy Adamson return status; 4954b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); 4955b1f69b75SAndy Adamson if (unlikely(!p)) 4956b1f69b75SAndy Adamson goto out_overflow; 4957b1f69b75SAndy Adamson res->return_on_close = be32_to_cpup(p++); 4958b1f69b75SAndy Adamson p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); 4959b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 4960b1f69b75SAndy Adamson if (!layout_count) { 4961b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 4962b1f69b75SAndy Adamson __func__); 4963b1f69b75SAndy Adamson return -EINVAL; 4964b1f69b75SAndy Adamson } 4965b1f69b75SAndy Adamson 4966b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 24); 4967b1f69b75SAndy Adamson if (unlikely(!p)) 4968b1f69b75SAndy Adamson goto out_overflow; 4969b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 4970b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 4971b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 4972b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 4973b1f69b75SAndy Adamson 4974b1f69b75SAndy Adamson status = decode_opaque_inline(xdr, &res->layout.len, (char **)&p); 4975b1f69b75SAndy Adamson if (unlikely(status)) 4976b1f69b75SAndy Adamson return status; 4977b1f69b75SAndy Adamson 4978b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 4979b1f69b75SAndy Adamson __func__, 4980b1f69b75SAndy Adamson (unsigned long)res->range.offset, 4981b1f69b75SAndy Adamson (unsigned long)res->range.length, 4982b1f69b75SAndy Adamson res->range.iomode, 4983b1f69b75SAndy Adamson res->type, 4984b1f69b75SAndy Adamson res->layout.len); 4985b1f69b75SAndy Adamson 4986b1f69b75SAndy Adamson /* nfs4_proc_layoutget allocated a single page */ 4987b1f69b75SAndy Adamson if (res->layout.len > PAGE_SIZE) 4988b1f69b75SAndy Adamson return -ENOMEM; 4989b1f69b75SAndy Adamson memcpy(res->layout.buf, p, res->layout.len); 4990b1f69b75SAndy Adamson 4991b1f69b75SAndy Adamson if (layout_count > 1) { 4992b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 4993b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 4994b1f69b75SAndy Adamson * the client may see a response that is less than the 4995b1f69b75SAndy Adamson * minimum it requested. 4996b1f69b75SAndy Adamson */ 4997b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 4998b1f69b75SAndy Adamson __func__, layout_count); 4999b1f69b75SAndy Adamson } 5000b1f69b75SAndy Adamson 5001b1f69b75SAndy Adamson return 0; 5002b1f69b75SAndy Adamson out_overflow: 5003b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5004b1f69b75SAndy Adamson return -EIO; 5005b1f69b75SAndy Adamson } 5006b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5007b1f69b75SAndy Adamson 50081da177e4SLinus Torvalds /* 500949c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 501049c2559eSBenny Halevy */ 501149c2559eSBenny Halevy 501249c2559eSBenny Halevy /* 50131da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 50141da177e4SLinus Torvalds */ 5015bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5016bf269551SChuck Lever struct xdr_stream *xdr, 5017bf269551SChuck Lever struct nfs_closeres *res) 50181da177e4SLinus Torvalds { 50191da177e4SLinus Torvalds struct compound_hdr hdr; 50201da177e4SLinus Torvalds int status; 50211da177e4SLinus Torvalds 5022bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 50231da177e4SLinus Torvalds if (status) 50241da177e4SLinus Torvalds goto out; 5025bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 50269b7b9fccSAndy Adamson if (status) 50279b7b9fccSAndy Adamson goto out; 5028bf269551SChuck Lever status = decode_putfh(xdr); 50291da177e4SLinus Torvalds if (status) 50301da177e4SLinus Torvalds goto out; 5031bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5032516a6af6STrond Myklebust if (status != 0) 5033516a6af6STrond Myklebust goto out; 5034bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 503580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50361da177e4SLinus Torvalds out: 50371da177e4SLinus Torvalds return status; 50381da177e4SLinus Torvalds } 50391da177e4SLinus Torvalds 50401da177e4SLinus Torvalds /* 50411da177e4SLinus Torvalds * Decode ACCESS response 50421da177e4SLinus Torvalds */ 5043bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5044bf269551SChuck Lever struct nfs4_accessres *res) 50451da177e4SLinus Torvalds { 50461da177e4SLinus Torvalds struct compound_hdr hdr; 50471da177e4SLinus Torvalds int status; 50481da177e4SLinus Torvalds 5049bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 50509b7b9fccSAndy Adamson if (status) 50519b7b9fccSAndy Adamson goto out; 5052bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 50539b7b9fccSAndy Adamson if (status) 50541da177e4SLinus Torvalds goto out; 5055bf269551SChuck Lever status = decode_putfh(xdr); 505676b32999STrond Myklebust if (status != 0) 505776b32999STrond Myklebust goto out; 5058bf269551SChuck Lever status = decode_access(xdr, res); 505976b32999STrond Myklebust if (status != 0) 506076b32999STrond Myklebust goto out; 5061bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 506280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50631da177e4SLinus Torvalds out: 50641da177e4SLinus Torvalds return status; 50651da177e4SLinus Torvalds } 50661da177e4SLinus Torvalds 50671da177e4SLinus Torvalds /* 50681da177e4SLinus Torvalds * Decode LOOKUP response 50691da177e4SLinus Torvalds */ 5070bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5071bf269551SChuck Lever struct nfs4_lookup_res *res) 50721da177e4SLinus Torvalds { 50731da177e4SLinus Torvalds struct compound_hdr hdr; 50741da177e4SLinus Torvalds int status; 50751da177e4SLinus Torvalds 5076bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 50779b7b9fccSAndy Adamson if (status) 50789b7b9fccSAndy Adamson goto out; 5079bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 50809b7b9fccSAndy Adamson if (status) 50811da177e4SLinus Torvalds goto out; 5082bf269551SChuck Lever status = decode_putfh(xdr); 5083bf269551SChuck Lever if (status) 50841da177e4SLinus Torvalds goto out; 5085bf269551SChuck Lever status = decode_lookup(xdr); 5086bf269551SChuck Lever if (status) 50871da177e4SLinus Torvalds goto out; 5088bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5089bf269551SChuck Lever if (status) 50901da177e4SLinus Torvalds goto out; 5091bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server 509280e52aceSTrond Myklebust ,!RPC_IS_ASYNC(rqstp->rq_task)); 50931da177e4SLinus Torvalds out: 50941da177e4SLinus Torvalds return status; 50951da177e4SLinus Torvalds } 50961da177e4SLinus Torvalds 50971da177e4SLinus Torvalds /* 50981da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 50991da177e4SLinus Torvalds */ 5100bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5101bf269551SChuck Lever struct xdr_stream *xdr, 5102bf269551SChuck Lever struct nfs4_lookup_res *res) 51031da177e4SLinus Torvalds { 51041da177e4SLinus Torvalds struct compound_hdr hdr; 51051da177e4SLinus Torvalds int status; 51061da177e4SLinus Torvalds 5107bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 51089b7b9fccSAndy Adamson if (status) 51099b7b9fccSAndy Adamson goto out; 5110bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 51119b7b9fccSAndy Adamson if (status) 51121da177e4SLinus Torvalds goto out; 5113bf269551SChuck Lever status = decode_putrootfh(xdr); 5114bf269551SChuck Lever if (status) 51151da177e4SLinus Torvalds goto out; 5116bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5117bf269551SChuck Lever if (status == 0) 5118bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server, 511980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51201da177e4SLinus Torvalds out: 51211da177e4SLinus Torvalds return status; 51221da177e4SLinus Torvalds } 51231da177e4SLinus Torvalds 51241da177e4SLinus Torvalds /* 51251da177e4SLinus Torvalds * Decode REMOVE response 51261da177e4SLinus Torvalds */ 5127bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5128bf269551SChuck Lever struct nfs_removeres *res) 51291da177e4SLinus Torvalds { 51301da177e4SLinus Torvalds struct compound_hdr hdr; 51311da177e4SLinus Torvalds int status; 51321da177e4SLinus Torvalds 5133bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 51349b7b9fccSAndy Adamson if (status) 51359b7b9fccSAndy Adamson goto out; 5136bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 51379b7b9fccSAndy Adamson if (status) 51381da177e4SLinus Torvalds goto out; 5139bf269551SChuck Lever status = decode_putfh(xdr); 5140bf269551SChuck Lever if (status) 514116e42959STrond Myklebust goto out; 5142bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 5143bf269551SChuck Lever if (status) 514416e42959STrond Myklebust goto out; 5145bf269551SChuck Lever decode_getfattr(xdr, res->dir_attr, res->server, 514680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51471da177e4SLinus Torvalds out: 51481da177e4SLinus Torvalds return status; 51491da177e4SLinus Torvalds } 51501da177e4SLinus Torvalds 51511da177e4SLinus Torvalds /* 51521da177e4SLinus Torvalds * Decode RENAME response 51531da177e4SLinus Torvalds */ 5154bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5155bf269551SChuck Lever struct nfs_renameres *res) 51561da177e4SLinus Torvalds { 51571da177e4SLinus Torvalds struct compound_hdr hdr; 51581da177e4SLinus Torvalds int status; 51591da177e4SLinus Torvalds 5160bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 51619b7b9fccSAndy Adamson if (status) 51629b7b9fccSAndy Adamson goto out; 5163bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 51649b7b9fccSAndy Adamson if (status) 51651da177e4SLinus Torvalds goto out; 5166bf269551SChuck Lever status = decode_putfh(xdr); 5167bf269551SChuck Lever if (status) 51681da177e4SLinus Torvalds goto out; 5169bf269551SChuck Lever status = decode_savefh(xdr); 5170bf269551SChuck Lever if (status) 51711da177e4SLinus Torvalds goto out; 5172bf269551SChuck Lever status = decode_putfh(xdr); 5173bf269551SChuck Lever if (status) 51741da177e4SLinus Torvalds goto out; 5175bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 5176bf269551SChuck Lever if (status) 51776caf2c82STrond Myklebust goto out; 51786caf2c82STrond Myklebust /* Current FH is target directory */ 5179bf269551SChuck Lever if (decode_getfattr(xdr, res->new_fattr, res->server, 518080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 51816caf2c82STrond Myklebust goto out; 5182bf269551SChuck Lever status = decode_restorefh(xdr); 5183bf269551SChuck Lever if (status) 51846caf2c82STrond Myklebust goto out; 5185bf269551SChuck Lever decode_getfattr(xdr, res->old_fattr, res->server, 518680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51871da177e4SLinus Torvalds out: 51881da177e4SLinus Torvalds return status; 51891da177e4SLinus Torvalds } 51901da177e4SLinus Torvalds 51911da177e4SLinus Torvalds /* 51921da177e4SLinus Torvalds * Decode LINK response 51931da177e4SLinus Torvalds */ 5194bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5195bf269551SChuck Lever struct nfs4_link_res *res) 51961da177e4SLinus Torvalds { 51971da177e4SLinus Torvalds struct compound_hdr hdr; 51981da177e4SLinus Torvalds int status; 51991da177e4SLinus Torvalds 5200bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52019b7b9fccSAndy Adamson if (status) 52029b7b9fccSAndy Adamson goto out; 5203bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52049b7b9fccSAndy Adamson if (status) 52051da177e4SLinus Torvalds goto out; 5206bf269551SChuck Lever status = decode_putfh(xdr); 5207bf269551SChuck Lever if (status) 52081da177e4SLinus Torvalds goto out; 5209bf269551SChuck Lever status = decode_savefh(xdr); 5210bf269551SChuck Lever if (status) 52111da177e4SLinus Torvalds goto out; 5212bf269551SChuck Lever status = decode_putfh(xdr); 5213bf269551SChuck Lever if (status) 52141da177e4SLinus Torvalds goto out; 5215bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 5216bf269551SChuck Lever if (status) 521791ba2eeeSTrond Myklebust goto out; 521891ba2eeeSTrond Myklebust /* 521991ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 522091ba2eeeSTrond Myklebust * filehandle. 522191ba2eeeSTrond Myklebust */ 5222bf269551SChuck Lever if (decode_getfattr(xdr, res->dir_attr, res->server, 522380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 522491ba2eeeSTrond Myklebust goto out; 5225bf269551SChuck Lever status = decode_restorefh(xdr); 5226bf269551SChuck Lever if (status) 522791ba2eeeSTrond Myklebust goto out; 5228bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 522980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52301da177e4SLinus Torvalds out: 52311da177e4SLinus Torvalds return status; 52321da177e4SLinus Torvalds } 52331da177e4SLinus Torvalds 52341da177e4SLinus Torvalds /* 52351da177e4SLinus Torvalds * Decode CREATE response 52361da177e4SLinus Torvalds */ 5237bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5238bf269551SChuck Lever struct nfs4_create_res *res) 52391da177e4SLinus Torvalds { 52401da177e4SLinus Torvalds struct compound_hdr hdr; 52411da177e4SLinus Torvalds int status; 52421da177e4SLinus Torvalds 5243bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52449b7b9fccSAndy Adamson if (status) 52459b7b9fccSAndy Adamson goto out; 5246bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52479b7b9fccSAndy Adamson if (status) 52481da177e4SLinus Torvalds goto out; 5249bf269551SChuck Lever status = decode_putfh(xdr); 5250bf269551SChuck Lever if (status) 52511da177e4SLinus Torvalds goto out; 5252bf269551SChuck Lever status = decode_savefh(xdr); 5253bf269551SChuck Lever if (status) 525456ae19f3STrond Myklebust goto out; 5255bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 5256bf269551SChuck Lever if (status) 52571da177e4SLinus Torvalds goto out; 5258bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5259bf269551SChuck Lever if (status) 52601da177e4SLinus Torvalds goto out; 5261bf269551SChuck Lever if (decode_getfattr(xdr, res->fattr, res->server, 526280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 526356ae19f3STrond Myklebust goto out; 5264bf269551SChuck Lever status = decode_restorefh(xdr); 5265bf269551SChuck Lever if (status) 526656ae19f3STrond Myklebust goto out; 5267bf269551SChuck Lever decode_getfattr(xdr, res->dir_fattr, res->server, 526880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52691da177e4SLinus Torvalds out: 52701da177e4SLinus Torvalds return status; 52711da177e4SLinus Torvalds } 52721da177e4SLinus Torvalds 52731da177e4SLinus Torvalds /* 52741da177e4SLinus Torvalds * Decode SYMLINK response 52751da177e4SLinus Torvalds */ 5276bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5277bf269551SChuck Lever struct nfs4_create_res *res) 52781da177e4SLinus Torvalds { 5279bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 52801da177e4SLinus Torvalds } 52811da177e4SLinus Torvalds 52821da177e4SLinus Torvalds /* 52831da177e4SLinus Torvalds * Decode GETATTR response 52841da177e4SLinus Torvalds */ 5285bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5286bf269551SChuck Lever struct nfs4_getattr_res *res) 52871da177e4SLinus Torvalds { 52881da177e4SLinus Torvalds struct compound_hdr hdr; 52891da177e4SLinus Torvalds int status; 52901da177e4SLinus Torvalds 5291bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52921da177e4SLinus Torvalds if (status) 52931da177e4SLinus Torvalds goto out; 5294bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52959b7b9fccSAndy Adamson if (status) 52969b7b9fccSAndy Adamson goto out; 5297bf269551SChuck Lever status = decode_putfh(xdr); 52981da177e4SLinus Torvalds if (status) 52991da177e4SLinus Torvalds goto out; 5300bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server, 530180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53021da177e4SLinus Torvalds out: 53031da177e4SLinus Torvalds return status; 53041da177e4SLinus Torvalds } 53051da177e4SLinus Torvalds 530623ec6965SJ. Bruce Fields /* 530723ec6965SJ. Bruce Fields * Encode an SETACL request 530823ec6965SJ. Bruce Fields */ 53099f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 53109f06c719SChuck Lever struct nfs_setaclargs *args) 531123ec6965SJ. Bruce Fields { 531223ec6965SJ. Bruce Fields struct compound_hdr hdr = { 531366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 531423ec6965SJ. Bruce Fields }; 531523ec6965SJ. Bruce Fields 53169f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 53179f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 53189f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 53199f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 5320d017931cSAndy Adamson encode_nops(&hdr); 532123ec6965SJ. Bruce Fields } 532205d564feSAndy Adamson 532323ec6965SJ. Bruce Fields /* 532423ec6965SJ. Bruce Fields * Decode SETACL response 532523ec6965SJ. Bruce Fields */ 532623ec6965SJ. Bruce Fields static int 5327bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 532873c403a9SBenny Halevy struct nfs_setaclres *res) 532923ec6965SJ. Bruce Fields { 533023ec6965SJ. Bruce Fields struct compound_hdr hdr; 533123ec6965SJ. Bruce Fields int status; 533223ec6965SJ. Bruce Fields 5333bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 533423ec6965SJ. Bruce Fields if (status) 533523ec6965SJ. Bruce Fields goto out; 5336bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53379b7b9fccSAndy Adamson if (status) 53389b7b9fccSAndy Adamson goto out; 5339bf269551SChuck Lever status = decode_putfh(xdr); 534023ec6965SJ. Bruce Fields if (status) 534123ec6965SJ. Bruce Fields goto out; 5342bf269551SChuck Lever status = decode_setattr(xdr); 534323ec6965SJ. Bruce Fields out: 534423ec6965SJ. Bruce Fields return status; 534523ec6965SJ. Bruce Fields } 53461da177e4SLinus Torvalds 53471da177e4SLinus Torvalds /* 5348029d105eSJ. Bruce Fields * Decode GETACL response 5349029d105eSJ. Bruce Fields */ 5350029d105eSJ. Bruce Fields static int 5351bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5352663c79b3SBenny Halevy struct nfs_getaclres *res) 5353029d105eSJ. Bruce Fields { 5354029d105eSJ. Bruce Fields struct compound_hdr hdr; 5355029d105eSJ. Bruce Fields int status; 5356029d105eSJ. Bruce Fields 5357bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5358029d105eSJ. Bruce Fields if (status) 5359029d105eSJ. Bruce Fields goto out; 5360bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53619b7b9fccSAndy Adamson if (status) 53629b7b9fccSAndy Adamson goto out; 5363bf269551SChuck Lever status = decode_putfh(xdr); 5364029d105eSJ. Bruce Fields if (status) 5365029d105eSJ. Bruce Fields goto out; 5366bf269551SChuck Lever status = decode_getacl(xdr, rqstp, &res->acl_len); 5367029d105eSJ. Bruce Fields 5368029d105eSJ. Bruce Fields out: 5369029d105eSJ. Bruce Fields return status; 5370029d105eSJ. Bruce Fields } 5371029d105eSJ. Bruce Fields 5372029d105eSJ. Bruce Fields /* 53731da177e4SLinus Torvalds * Decode CLOSE response 53741da177e4SLinus Torvalds */ 5375bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5376bf269551SChuck Lever struct nfs_closeres *res) 53771da177e4SLinus Torvalds { 53781da177e4SLinus Torvalds struct compound_hdr hdr; 53791da177e4SLinus Torvalds int status; 53801da177e4SLinus Torvalds 5381bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 53821da177e4SLinus Torvalds if (status) 53831da177e4SLinus Torvalds goto out; 5384bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53859b7b9fccSAndy Adamson if (status) 53869b7b9fccSAndy Adamson goto out; 5387bf269551SChuck Lever status = decode_putfh(xdr); 53881da177e4SLinus Torvalds if (status) 53891da177e4SLinus Torvalds goto out; 5390bf269551SChuck Lever status = decode_close(xdr, res); 5391516a6af6STrond Myklebust if (status != 0) 5392516a6af6STrond Myklebust goto out; 5393516a6af6STrond Myklebust /* 5394516a6af6STrond Myklebust * Note: Server may do delete on close for this file 5395516a6af6STrond Myklebust * in which case the getattr call will fail with 5396516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 5397516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 5398516a6af6STrond Myklebust */ 5399bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 540080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54011da177e4SLinus Torvalds out: 54021da177e4SLinus Torvalds return status; 54031da177e4SLinus Torvalds } 54041da177e4SLinus Torvalds 54051da177e4SLinus Torvalds /* 54061da177e4SLinus Torvalds * Decode OPEN response 54071da177e4SLinus Torvalds */ 5408bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5409bf269551SChuck Lever struct nfs_openres *res) 54101da177e4SLinus Torvalds { 54111da177e4SLinus Torvalds struct compound_hdr hdr; 54121da177e4SLinus Torvalds int status; 54131da177e4SLinus Torvalds 5414bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54151da177e4SLinus Torvalds if (status) 54161da177e4SLinus Torvalds goto out; 5417bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 54189b7b9fccSAndy Adamson if (status) 54199b7b9fccSAndy Adamson goto out; 5420bf269551SChuck Lever status = decode_putfh(xdr); 54211da177e4SLinus Torvalds if (status) 54221da177e4SLinus Torvalds goto out; 5423bf269551SChuck Lever status = decode_savefh(xdr); 542456ae19f3STrond Myklebust if (status) 542556ae19f3STrond Myklebust goto out; 5426bf269551SChuck Lever status = decode_open(xdr, res); 54271da177e4SLinus Torvalds if (status) 54281da177e4SLinus Torvalds goto out; 5429bf269551SChuck Lever if (decode_getfh(xdr, &res->fh) != 0) 54301da177e4SLinus Torvalds goto out; 5431bf269551SChuck Lever if (decode_getfattr(xdr, res->f_attr, res->server, 543280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 543356ae19f3STrond Myklebust goto out; 5434bf269551SChuck Lever if (decode_restorefh(xdr) != 0) 543556ae19f3STrond Myklebust goto out; 5436bf269551SChuck Lever decode_getfattr(xdr, res->dir_attr, res->server, 543780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54381da177e4SLinus Torvalds out: 54391da177e4SLinus Torvalds return status; 54401da177e4SLinus Torvalds } 54411da177e4SLinus Torvalds 54421da177e4SLinus Torvalds /* 54431da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 54441da177e4SLinus Torvalds */ 5445bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 5446bf269551SChuck Lever struct xdr_stream *xdr, 5447bf269551SChuck Lever struct nfs_open_confirmres *res) 54481da177e4SLinus Torvalds { 54491da177e4SLinus Torvalds struct compound_hdr hdr; 54501da177e4SLinus Torvalds int status; 54511da177e4SLinus Torvalds 5452bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54531da177e4SLinus Torvalds if (status) 54541da177e4SLinus Torvalds goto out; 5455bf269551SChuck Lever status = decode_putfh(xdr); 54561da177e4SLinus Torvalds if (status) 54571da177e4SLinus Torvalds goto out; 5458bf269551SChuck Lever status = decode_open_confirm(xdr, res); 54591da177e4SLinus Torvalds out: 54601da177e4SLinus Torvalds return status; 54611da177e4SLinus Torvalds } 54621da177e4SLinus Torvalds 54631da177e4SLinus Torvalds /* 54641da177e4SLinus Torvalds * Decode OPEN response 54651da177e4SLinus Torvalds */ 5466bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 5467bf269551SChuck Lever struct xdr_stream *xdr, 5468bf269551SChuck Lever struct nfs_openres *res) 54691da177e4SLinus Torvalds { 54701da177e4SLinus Torvalds struct compound_hdr hdr; 54711da177e4SLinus Torvalds int status; 54721da177e4SLinus Torvalds 5473bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54741da177e4SLinus Torvalds if (status) 54751da177e4SLinus Torvalds goto out; 5476bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 54779b7b9fccSAndy Adamson if (status) 54789b7b9fccSAndy Adamson goto out; 5479bf269551SChuck Lever status = decode_putfh(xdr); 54801da177e4SLinus Torvalds if (status) 54811da177e4SLinus Torvalds goto out; 5482bf269551SChuck Lever status = decode_open(xdr, res); 5483864472e9STrond Myklebust if (status) 5484864472e9STrond Myklebust goto out; 5485bf269551SChuck Lever decode_getfattr(xdr, res->f_attr, res->server, 548680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54871da177e4SLinus Torvalds out: 54881da177e4SLinus Torvalds return status; 54891da177e4SLinus Torvalds } 54901da177e4SLinus Torvalds 54911da177e4SLinus Torvalds /* 54921da177e4SLinus Torvalds * Decode SETATTR response 54931da177e4SLinus Torvalds */ 5494bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 5495bf269551SChuck Lever struct xdr_stream *xdr, 5496bf269551SChuck Lever struct nfs_setattrres *res) 54971da177e4SLinus Torvalds { 54981da177e4SLinus Torvalds struct compound_hdr hdr; 54991da177e4SLinus Torvalds int status; 55001da177e4SLinus Torvalds 5501bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55021da177e4SLinus Torvalds if (status) 55031da177e4SLinus Torvalds goto out; 5504bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55059b7b9fccSAndy Adamson if (status) 55069b7b9fccSAndy Adamson goto out; 5507bf269551SChuck Lever status = decode_putfh(xdr); 55081da177e4SLinus Torvalds if (status) 55091da177e4SLinus Torvalds goto out; 5510bf269551SChuck Lever status = decode_setattr(xdr); 55111da177e4SLinus Torvalds if (status) 55121da177e4SLinus Torvalds goto out; 5513bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 551480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 55151da177e4SLinus Torvalds out: 55161da177e4SLinus Torvalds return status; 55171da177e4SLinus Torvalds } 55181da177e4SLinus Torvalds 55191da177e4SLinus Torvalds /* 55201da177e4SLinus Torvalds * Decode LOCK response 55211da177e4SLinus Torvalds */ 5522bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5523bf269551SChuck Lever struct nfs_lock_res *res) 55241da177e4SLinus Torvalds { 55251da177e4SLinus Torvalds struct compound_hdr hdr; 55261da177e4SLinus Torvalds int status; 55271da177e4SLinus Torvalds 5528bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55291da177e4SLinus Torvalds if (status) 55301da177e4SLinus Torvalds goto out; 5531bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55329b7b9fccSAndy Adamson if (status) 55339b7b9fccSAndy Adamson goto out; 5534bf269551SChuck Lever status = decode_putfh(xdr); 55351da177e4SLinus Torvalds if (status) 55361da177e4SLinus Torvalds goto out; 5537bf269551SChuck Lever status = decode_lock(xdr, res); 55381da177e4SLinus Torvalds out: 55391da177e4SLinus Torvalds return status; 55401da177e4SLinus Torvalds } 55411da177e4SLinus Torvalds 55421da177e4SLinus Torvalds /* 55431da177e4SLinus Torvalds * Decode LOCKT response 55441da177e4SLinus Torvalds */ 5545bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5546bf269551SChuck Lever struct nfs_lockt_res *res) 55471da177e4SLinus Torvalds { 55481da177e4SLinus Torvalds struct compound_hdr hdr; 55491da177e4SLinus Torvalds int status; 55501da177e4SLinus Torvalds 5551bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55521da177e4SLinus Torvalds if (status) 55531da177e4SLinus Torvalds goto out; 5554bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55559b7b9fccSAndy Adamson if (status) 55569b7b9fccSAndy Adamson goto out; 5557bf269551SChuck Lever status = decode_putfh(xdr); 55581da177e4SLinus Torvalds if (status) 55591da177e4SLinus Torvalds goto out; 5560bf269551SChuck Lever status = decode_lockt(xdr, res); 55611da177e4SLinus Torvalds out: 55621da177e4SLinus Torvalds return status; 55631da177e4SLinus Torvalds } 55641da177e4SLinus Torvalds 55651da177e4SLinus Torvalds /* 55661da177e4SLinus Torvalds * Decode LOCKU response 55671da177e4SLinus Torvalds */ 5568bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5569bf269551SChuck Lever struct nfs_locku_res *res) 55701da177e4SLinus Torvalds { 55711da177e4SLinus Torvalds struct compound_hdr hdr; 55721da177e4SLinus Torvalds int status; 55731da177e4SLinus Torvalds 5574bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55751da177e4SLinus Torvalds if (status) 55761da177e4SLinus Torvalds goto out; 5577bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55789b7b9fccSAndy Adamson if (status) 55799b7b9fccSAndy Adamson goto out; 5580bf269551SChuck Lever status = decode_putfh(xdr); 55811da177e4SLinus Torvalds if (status) 55821da177e4SLinus Torvalds goto out; 5583bf269551SChuck Lever status = decode_locku(xdr, res); 55841da177e4SLinus Torvalds out: 55851da177e4SLinus Torvalds return status; 55861da177e4SLinus Torvalds } 55871da177e4SLinus Torvalds 5588bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 5589bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 5590d3c7b7ccSTrond Myklebust { 5591d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 5592d3c7b7ccSTrond Myklebust int status; 5593d3c7b7ccSTrond Myklebust 5594bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5595d3c7b7ccSTrond Myklebust if (!status) 5596bf269551SChuck Lever status = decode_release_lockowner(xdr); 5597d3c7b7ccSTrond Myklebust return status; 5598d3c7b7ccSTrond Myklebust } 5599d3c7b7ccSTrond Myklebust 56001da177e4SLinus Torvalds /* 56011da177e4SLinus Torvalds * Decode READLINK response 56021da177e4SLinus Torvalds */ 5603bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 5604bf269551SChuck Lever struct xdr_stream *xdr, 5605f50c7000SBenny Halevy struct nfs4_readlink_res *res) 56061da177e4SLinus Torvalds { 56071da177e4SLinus Torvalds struct compound_hdr hdr; 56081da177e4SLinus Torvalds int status; 56091da177e4SLinus Torvalds 5610bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56111da177e4SLinus Torvalds if (status) 56121da177e4SLinus Torvalds goto out; 5613bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56149b7b9fccSAndy Adamson if (status) 56159b7b9fccSAndy Adamson goto out; 5616bf269551SChuck Lever status = decode_putfh(xdr); 56171da177e4SLinus Torvalds if (status) 56181da177e4SLinus Torvalds goto out; 5619bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 56201da177e4SLinus Torvalds out: 56211da177e4SLinus Torvalds return status; 56221da177e4SLinus Torvalds } 56231da177e4SLinus Torvalds 56241da177e4SLinus Torvalds /* 56251da177e4SLinus Torvalds * Decode READDIR response 56261da177e4SLinus Torvalds */ 5627bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5628bf269551SChuck Lever struct nfs4_readdir_res *res) 56291da177e4SLinus Torvalds { 56301da177e4SLinus Torvalds struct compound_hdr hdr; 56311da177e4SLinus Torvalds int status; 56321da177e4SLinus Torvalds 5633bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56341da177e4SLinus Torvalds if (status) 56351da177e4SLinus Torvalds goto out; 5636bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56379b7b9fccSAndy Adamson if (status) 56389b7b9fccSAndy Adamson goto out; 5639bf269551SChuck Lever status = decode_putfh(xdr); 56401da177e4SLinus Torvalds if (status) 56411da177e4SLinus Torvalds goto out; 5642bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 56431da177e4SLinus Torvalds out: 56441da177e4SLinus Torvalds return status; 56451da177e4SLinus Torvalds } 56461da177e4SLinus Torvalds 56471da177e4SLinus Torvalds /* 56481da177e4SLinus Torvalds * Decode Read response 56491da177e4SLinus Torvalds */ 5650bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5651bf269551SChuck Lever struct nfs_readres *res) 56521da177e4SLinus Torvalds { 56531da177e4SLinus Torvalds struct compound_hdr hdr; 56541da177e4SLinus Torvalds int status; 56551da177e4SLinus Torvalds 5656bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56571da177e4SLinus Torvalds if (status) 56581da177e4SLinus Torvalds goto out; 5659bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56609b7b9fccSAndy Adamson if (status) 56619b7b9fccSAndy Adamson goto out; 5662bf269551SChuck Lever status = decode_putfh(xdr); 56631da177e4SLinus Torvalds if (status) 56641da177e4SLinus Torvalds goto out; 5665bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 56661da177e4SLinus Torvalds if (!status) 56671da177e4SLinus Torvalds status = res->count; 56681da177e4SLinus Torvalds out: 56691da177e4SLinus Torvalds return status; 56701da177e4SLinus Torvalds } 56711da177e4SLinus Torvalds 56721da177e4SLinus Torvalds /* 56731da177e4SLinus Torvalds * Decode WRITE response 56741da177e4SLinus Torvalds */ 5675bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5676bf269551SChuck Lever struct nfs_writeres *res) 56771da177e4SLinus Torvalds { 56781da177e4SLinus Torvalds struct compound_hdr hdr; 56791da177e4SLinus Torvalds int status; 56801da177e4SLinus Torvalds 5681bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56821da177e4SLinus Torvalds if (status) 56831da177e4SLinus Torvalds goto out; 5684bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56859b7b9fccSAndy Adamson if (status) 56869b7b9fccSAndy Adamson goto out; 5687bf269551SChuck Lever status = decode_putfh(xdr); 56881da177e4SLinus Torvalds if (status) 56891da177e4SLinus Torvalds goto out; 5690bf269551SChuck Lever status = decode_write(xdr, res); 56914f9838c7STrond Myklebust if (status) 56924f9838c7STrond Myklebust goto out; 5693bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 569480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 56951da177e4SLinus Torvalds if (!status) 56961da177e4SLinus Torvalds status = res->count; 56971da177e4SLinus Torvalds out: 56981da177e4SLinus Torvalds return status; 56991da177e4SLinus Torvalds } 57001da177e4SLinus Torvalds 57011da177e4SLinus Torvalds /* 57021da177e4SLinus Torvalds * Decode COMMIT response 57031da177e4SLinus Torvalds */ 5704bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5705bf269551SChuck Lever struct nfs_writeres *res) 57061da177e4SLinus Torvalds { 57071da177e4SLinus Torvalds struct compound_hdr hdr; 57081da177e4SLinus Torvalds int status; 57091da177e4SLinus Torvalds 5710bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57111da177e4SLinus Torvalds if (status) 57121da177e4SLinus Torvalds goto out; 5713bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57149b7b9fccSAndy Adamson if (status) 57159b7b9fccSAndy Adamson goto out; 5716bf269551SChuck Lever status = decode_putfh(xdr); 57171da177e4SLinus Torvalds if (status) 57181da177e4SLinus Torvalds goto out; 5719bf269551SChuck Lever status = decode_commit(xdr, res); 57204f9838c7STrond Myklebust if (status) 57214f9838c7STrond Myklebust goto out; 5722bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 572380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 57241da177e4SLinus Torvalds out: 57251da177e4SLinus Torvalds return status; 57261da177e4SLinus Torvalds } 57271da177e4SLinus Torvalds 57281da177e4SLinus Torvalds /* 57298b173218SRicardo Labiaga * Decode FSINFO response 57301da177e4SLinus Torvalds */ 5731bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 57323dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 57331da177e4SLinus Torvalds { 57341da177e4SLinus Torvalds struct compound_hdr hdr; 57351da177e4SLinus Torvalds int status; 57361da177e4SLinus Torvalds 5737bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57381da177e4SLinus Torvalds if (!status) 5739bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57409b7b9fccSAndy Adamson if (!status) 5741bf269551SChuck Lever status = decode_putfh(xdr); 57421da177e4SLinus Torvalds if (!status) 5743bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 57441da177e4SLinus Torvalds return status; 57451da177e4SLinus Torvalds } 57461da177e4SLinus Torvalds 57471da177e4SLinus Torvalds /* 57488b173218SRicardo Labiaga * Decode PATHCONF response 57491da177e4SLinus Torvalds */ 5750bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 5751d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 57521da177e4SLinus Torvalds { 57531da177e4SLinus Torvalds struct compound_hdr hdr; 57541da177e4SLinus Torvalds int status; 57551da177e4SLinus Torvalds 5756bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57571da177e4SLinus Torvalds if (!status) 5758bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57599b7b9fccSAndy Adamson if (!status) 5760bf269551SChuck Lever status = decode_putfh(xdr); 57611da177e4SLinus Torvalds if (!status) 5762bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 57631da177e4SLinus Torvalds return status; 57641da177e4SLinus Torvalds } 57651da177e4SLinus Torvalds 57661da177e4SLinus Torvalds /* 57678b173218SRicardo Labiaga * Decode STATFS response 57681da177e4SLinus Torvalds */ 5769bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 577024ad148aSBenny Halevy struct nfs4_statfs_res *res) 57711da177e4SLinus Torvalds { 57721da177e4SLinus Torvalds struct compound_hdr hdr; 57731da177e4SLinus Torvalds int status; 57741da177e4SLinus Torvalds 5775bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57761da177e4SLinus Torvalds if (!status) 5777bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57789b7b9fccSAndy Adamson if (!status) 5779bf269551SChuck Lever status = decode_putfh(xdr); 57801da177e4SLinus Torvalds if (!status) 5781bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 57821da177e4SLinus Torvalds return status; 57831da177e4SLinus Torvalds } 57841da177e4SLinus Torvalds 57851da177e4SLinus Torvalds /* 57868b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 57871da177e4SLinus Torvalds */ 5788bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 5789bf269551SChuck Lever struct xdr_stream *xdr, 5790bf269551SChuck Lever struct nfs4_server_caps_res *res) 57911da177e4SLinus Torvalds { 57921da177e4SLinus Torvalds struct compound_hdr hdr; 57931da177e4SLinus Torvalds int status; 57941da177e4SLinus Torvalds 5795bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57969b7b9fccSAndy Adamson if (status) 57979b7b9fccSAndy Adamson goto out; 5798bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57999b7b9fccSAndy Adamson if (status) 58001da177e4SLinus Torvalds goto out; 5801bf269551SChuck Lever status = decode_putfh(xdr); 5802bf269551SChuck Lever if (status) 58031da177e4SLinus Torvalds goto out; 5804bf269551SChuck Lever status = decode_server_caps(xdr, res); 58051da177e4SLinus Torvalds out: 58061da177e4SLinus Torvalds return status; 58071da177e4SLinus Torvalds } 58081da177e4SLinus Torvalds 58091da177e4SLinus Torvalds /* 58101da177e4SLinus Torvalds * Decode RENEW response 58111da177e4SLinus Torvalds */ 5812bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5813bf269551SChuck Lever void *__unused) 58141da177e4SLinus Torvalds { 58151da177e4SLinus Torvalds struct compound_hdr hdr; 58161da177e4SLinus Torvalds int status; 58171da177e4SLinus Torvalds 5818bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58191da177e4SLinus Torvalds if (!status) 5820bf269551SChuck Lever status = decode_renew(xdr); 58211da177e4SLinus Torvalds return status; 58221da177e4SLinus Torvalds } 58231da177e4SLinus Torvalds 58241da177e4SLinus Torvalds /* 58258b173218SRicardo Labiaga * Decode SETCLIENTID response 58261da177e4SLinus Torvalds */ 5827bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 5828bf269551SChuck Lever struct xdr_stream *xdr, 5829bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 58301da177e4SLinus Torvalds { 58311da177e4SLinus Torvalds struct compound_hdr hdr; 58321da177e4SLinus Torvalds int status; 58331da177e4SLinus Torvalds 5834bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58351da177e4SLinus Torvalds if (!status) 5836bf269551SChuck Lever status = decode_setclientid(xdr, res); 58371da177e4SLinus Torvalds return status; 58381da177e4SLinus Torvalds } 58391da177e4SLinus Torvalds 58401da177e4SLinus Torvalds /* 58418b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 58421da177e4SLinus Torvalds */ 5843bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 5844bf269551SChuck Lever struct xdr_stream *xdr, 5845bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 58461da177e4SLinus Torvalds { 58471da177e4SLinus Torvalds struct compound_hdr hdr; 58481da177e4SLinus Torvalds int status; 58491da177e4SLinus Torvalds 5850bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58511da177e4SLinus Torvalds if (!status) 5852bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 58531da177e4SLinus Torvalds if (!status) 5854bf269551SChuck Lever status = decode_putrootfh(xdr); 58551da177e4SLinus Torvalds if (!status) 5856bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 58571da177e4SLinus Torvalds return status; 58581da177e4SLinus Torvalds } 58591da177e4SLinus Torvalds 58601da177e4SLinus Torvalds /* 58618b173218SRicardo Labiaga * Decode DELEGRETURN response 58621da177e4SLinus Torvalds */ 5863bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 5864bf269551SChuck Lever struct xdr_stream *xdr, 5865bf269551SChuck Lever struct nfs4_delegreturnres *res) 58661da177e4SLinus Torvalds { 58671da177e4SLinus Torvalds struct compound_hdr hdr; 58681da177e4SLinus Torvalds int status; 58691da177e4SLinus Torvalds 5870bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58719b7b9fccSAndy Adamson if (status) 58729b7b9fccSAndy Adamson goto out; 5873bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58749b7b9fccSAndy Adamson if (status) 5875fa178f29STrond Myklebust goto out; 5876bf269551SChuck Lever status = decode_putfh(xdr); 5877fa178f29STrond Myklebust if (status != 0) 5878fa178f29STrond Myklebust goto out; 5879bf269551SChuck Lever status = decode_delegreturn(xdr); 5880556ae3bbSJeff Layton if (status != 0) 5881556ae3bbSJeff Layton goto out; 5882bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 588380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 5884fa178f29STrond Myklebust out: 58851da177e4SLinus Torvalds return status; 58861da177e4SLinus Torvalds } 58871da177e4SLinus Torvalds 5888683b57b4STrond Myklebust /* 58898b173218SRicardo Labiaga * Decode FS_LOCATIONS response 5890683b57b4STrond Myklebust */ 5891bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 5892bf269551SChuck Lever struct xdr_stream *xdr, 589322958463SBenny Halevy struct nfs4_fs_locations_res *res) 5894683b57b4STrond Myklebust { 5895683b57b4STrond Myklebust struct compound_hdr hdr; 5896683b57b4STrond Myklebust int status; 5897683b57b4STrond Myklebust 5898bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58999b7b9fccSAndy Adamson if (status) 59009b7b9fccSAndy Adamson goto out; 5901bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 59029b7b9fccSAndy Adamson if (status) 5903683b57b4STrond Myklebust goto out; 5904bf269551SChuck Lever status = decode_putfh(xdr); 5905bf269551SChuck Lever if (status) 5906683b57b4STrond Myklebust goto out; 5907bf269551SChuck Lever status = decode_lookup(xdr); 5908bf269551SChuck Lever if (status) 5909683b57b4STrond Myklebust goto out; 5910bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 5911bf269551SChuck Lever status = decode_getfattr(xdr, &res->fs_locations->fattr, 591280e52aceSTrond Myklebust res->fs_locations->server, 591380e52aceSTrond Myklebust !RPC_IS_ASYNC(req->rq_task)); 5914683b57b4STrond Myklebust out: 5915683b57b4STrond Myklebust return status; 5916683b57b4STrond Myklebust } 5917683b57b4STrond Myklebust 591899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 591999fe60d0SBenny Halevy /* 59208b173218SRicardo Labiaga * Decode EXCHANGE_ID response 592199fe60d0SBenny Halevy */ 5922bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 5923bf269551SChuck Lever struct xdr_stream *xdr, 592499fe60d0SBenny Halevy void *res) 592599fe60d0SBenny Halevy { 592699fe60d0SBenny Halevy struct compound_hdr hdr; 592799fe60d0SBenny Halevy int status; 592899fe60d0SBenny Halevy 5929bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 593099fe60d0SBenny Halevy if (!status) 5931bf269551SChuck Lever status = decode_exchange_id(xdr, res); 593299fe60d0SBenny Halevy return status; 593399fe60d0SBenny Halevy } 59342050f0ccSAndy Adamson 59352050f0ccSAndy Adamson /* 59368b173218SRicardo Labiaga * Decode CREATE_SESSION response 5937fc931582SAndy Adamson */ 5938bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 5939bf269551SChuck Lever struct xdr_stream *xdr, 5940fc931582SAndy Adamson struct nfs41_create_session_res *res) 5941fc931582SAndy Adamson { 5942fc931582SAndy Adamson struct compound_hdr hdr; 5943fc931582SAndy Adamson int status; 5944fc931582SAndy Adamson 5945bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5946fc931582SAndy Adamson if (!status) 5947bf269551SChuck Lever status = decode_create_session(xdr, res); 5948fc931582SAndy Adamson return status; 5949fc931582SAndy Adamson } 5950fc931582SAndy Adamson 5951fc931582SAndy Adamson /* 59528b173218SRicardo Labiaga * Decode DESTROY_SESSION response 59530f3e66c6SAndy Adamson */ 5954bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 5955bf269551SChuck Lever struct xdr_stream *xdr, 5956bf269551SChuck Lever void *res) 59570f3e66c6SAndy Adamson { 59580f3e66c6SAndy Adamson struct compound_hdr hdr; 59590f3e66c6SAndy Adamson int status; 59600f3e66c6SAndy Adamson 5961bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59620f3e66c6SAndy Adamson if (!status) 5963bf269551SChuck Lever status = decode_destroy_session(xdr, res); 59640f3e66c6SAndy Adamson return status; 59650f3e66c6SAndy Adamson } 59660f3e66c6SAndy Adamson 59670f3e66c6SAndy Adamson /* 59688b173218SRicardo Labiaga * Decode SEQUENCE response 5969fc01cea9SAndy Adamson */ 5970bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 5971bf269551SChuck Lever struct xdr_stream *xdr, 5972fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5973fc01cea9SAndy Adamson { 5974fc01cea9SAndy Adamson struct compound_hdr hdr; 5975fc01cea9SAndy Adamson int status; 5976fc01cea9SAndy Adamson 5977bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5978fc01cea9SAndy Adamson if (!status) 5979bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 5980fc01cea9SAndy Adamson return status; 5981fc01cea9SAndy Adamson } 5982fc01cea9SAndy Adamson 5983fc01cea9SAndy Adamson /* 59848b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 59852050f0ccSAndy Adamson */ 5986bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 5987bf269551SChuck Lever struct xdr_stream *xdr, 59882050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 59892050f0ccSAndy Adamson { 59902050f0ccSAndy Adamson struct compound_hdr hdr; 59912050f0ccSAndy Adamson int status; 59922050f0ccSAndy Adamson 5993bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59942050f0ccSAndy Adamson if (!status) 5995bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 59962050f0ccSAndy Adamson if (!status) 5997bf269551SChuck Lever status = decode_putrootfh(xdr); 59982050f0ccSAndy Adamson if (!status) 5999bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 60002050f0ccSAndy Adamson return status; 60012050f0ccSAndy Adamson } 600218019753SRicardo Labiaga 600318019753SRicardo Labiaga /* 600418019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 600518019753SRicardo Labiaga */ 6006bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6007bf269551SChuck Lever struct xdr_stream *xdr, 600818019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 600918019753SRicardo Labiaga { 601018019753SRicardo Labiaga struct compound_hdr hdr; 601118019753SRicardo Labiaga int status; 601218019753SRicardo Labiaga 6013bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 601418019753SRicardo Labiaga if (!status) 6015bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 601618019753SRicardo Labiaga if (!status) 6017bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 601818019753SRicardo Labiaga return status; 601918019753SRicardo Labiaga } 6020b1f69b75SAndy Adamson 6021b1f69b75SAndy Adamson /* 6022b1f69b75SAndy Adamson * Decode GETDEVINFO response 6023b1f69b75SAndy Adamson */ 6024bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6025bf269551SChuck Lever struct xdr_stream *xdr, 6026b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6027b1f69b75SAndy Adamson { 6028b1f69b75SAndy Adamson struct compound_hdr hdr; 6029b1f69b75SAndy Adamson int status; 6030b1f69b75SAndy Adamson 6031bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6032b1f69b75SAndy Adamson if (status != 0) 6033b1f69b75SAndy Adamson goto out; 6034bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6035b1f69b75SAndy Adamson if (status != 0) 6036b1f69b75SAndy Adamson goto out; 6037bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6038b1f69b75SAndy Adamson out: 6039b1f69b75SAndy Adamson return status; 6040b1f69b75SAndy Adamson } 6041b1f69b75SAndy Adamson 6042b1f69b75SAndy Adamson /* 6043b1f69b75SAndy Adamson * Decode LAYOUTGET response 6044b1f69b75SAndy Adamson */ 6045bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6046bf269551SChuck Lever struct xdr_stream *xdr, 6047b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6048b1f69b75SAndy Adamson { 6049b1f69b75SAndy Adamson struct compound_hdr hdr; 6050b1f69b75SAndy Adamson int status; 6051b1f69b75SAndy Adamson 6052bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6053b1f69b75SAndy Adamson if (status) 6054b1f69b75SAndy Adamson goto out; 6055bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6056b1f69b75SAndy Adamson if (status) 6057b1f69b75SAndy Adamson goto out; 6058bf269551SChuck Lever status = decode_putfh(xdr); 6059b1f69b75SAndy Adamson if (status) 6060b1f69b75SAndy Adamson goto out; 6061bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6062b1f69b75SAndy Adamson out: 6063b1f69b75SAndy Adamson return status; 6064b1f69b75SAndy Adamson } 606599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 606699fe60d0SBenny Halevy 6067573c4e1eSChuck Lever /** 6068573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 6069573c4e1eSChuck Lever * the local page cache. 6070573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 6071573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 6072573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 6073573c4e1eSChuck Lever * 6074573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 6075573c4e1eSChuck Lever * returned. 6076573c4e1eSChuck Lever * 6077573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 6078573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 6079573c4e1eSChuck Lever * on a directory already in our cache. 6080573c4e1eSChuck Lever */ 6081573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 6082573c4e1eSChuck Lever int plus) 60831da177e4SLinus Torvalds { 60841da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 60851da177e4SLinus Torvalds uint32_t len; 6086babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 6087babddc72SBryan Schumaker if (unlikely(!p)) 6088babddc72SBryan Schumaker goto out_overflow; 6089c08e76d0SChuck Lever if (*p == xdr_zero) { 6090babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 6091babddc72SBryan Schumaker if (unlikely(!p)) 6092babddc72SBryan Schumaker goto out_overflow; 6093c08e76d0SChuck Lever if (*p == xdr_zero) 6094573c4e1eSChuck Lever return -EAGAIN; 60951da177e4SLinus Torvalds entry->eof = 1; 6096573c4e1eSChuck Lever return -EBADCOOKIE; 60971da177e4SLinus Torvalds } 60981da177e4SLinus Torvalds 6099babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 6100babddc72SBryan Schumaker if (unlikely(!p)) 6101babddc72SBryan Schumaker goto out_overflow; 61021da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 61031da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 6104c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 6105babddc72SBryan Schumaker 61069af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 6107babddc72SBryan Schumaker if (unlikely(!p)) 6108babddc72SBryan Schumaker goto out_overflow; 61091da177e4SLinus Torvalds entry->name = (const char *) p; 61101da177e4SLinus Torvalds 61111da177e4SLinus Torvalds /* 61121da177e4SLinus Torvalds * In case the server doesn't return an inode number, 61131da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 61141da177e4SLinus Torvalds * since glibc seems to choke on it...) 61151da177e4SLinus Torvalds */ 61161da177e4SLinus Torvalds entry->ino = 1; 61174f082222STrond Myklebust entry->fattr->valid = 0; 61181da177e4SLinus Torvalds 61199af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 6120babddc72SBryan Schumaker goto out_overflow; 61219af8c222STrond Myklebust 61229af8c222STrond Myklebust if (decode_attr_length(xdr, &len, &p) < 0) 6123babddc72SBryan Schumaker goto out_overflow; 61249af8c222STrond Myklebust 6125573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 6126573c4e1eSChuck Lever entry->server, 1) < 0) 6127babddc72SBryan Schumaker goto out_overflow; 612882f2e547SBryan Schumaker if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 612982f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 61309af8c222STrond Myklebust 61310b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 61320b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 61330b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 61340b26a0bfSTrond Myklebust 61359af8c222STrond Myklebust if (verify_attr_len(xdr, p, len) < 0) 61369af8c222STrond Myklebust goto out_overflow; 61371da177e4SLinus Torvalds 6138573c4e1eSChuck Lever return 0; 6139babddc72SBryan Schumaker 6140babddc72SBryan Schumaker out_overflow: 6141babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 6142573c4e1eSChuck Lever return -EAGAIN; 61431da177e4SLinus Torvalds } 61441da177e4SLinus Torvalds 61451da177e4SLinus Torvalds /* 61461da177e4SLinus Torvalds * We need to translate between nfs status return values and 61471da177e4SLinus Torvalds * the local errno values which may not be the same. 61481da177e4SLinus Torvalds */ 61491da177e4SLinus Torvalds static struct { 61501da177e4SLinus Torvalds int stat; 61511da177e4SLinus Torvalds int errno; 61521da177e4SLinus Torvalds } nfs_errtbl[] = { 61531da177e4SLinus Torvalds { NFS4_OK, 0 }, 6154856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 6155856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 6156856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 6157856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 6158856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 6159856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 6160856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 6161856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 6162856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 6163856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 6164856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 6165856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 6166856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 6167856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 6168856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 6169856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 6170856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 6171856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 6172856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 6173856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 6174856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 6175856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 6176856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 6177856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 6178fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 6179856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 6180856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 6181856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 6182856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 6183856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 6184856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 61851da177e4SLinus Torvalds * to be handled by a 61861da177e4SLinus Torvalds * middle-layer. 61871da177e4SLinus Torvalds */ 6188856dff3dSBenny Halevy { -1, -EIO } 61891da177e4SLinus Torvalds }; 61901da177e4SLinus Torvalds 61911da177e4SLinus Torvalds /* 61921da177e4SLinus Torvalds * Convert an NFS error code to a local one. 61931da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 61941da177e4SLinus Torvalds */ 61951da177e4SLinus Torvalds static int 61960a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 61971da177e4SLinus Torvalds { 61981da177e4SLinus Torvalds int i; 61991da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 62001da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 62011da177e4SLinus Torvalds return nfs_errtbl[i].errno; 62021da177e4SLinus Torvalds } 62031da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 62041da177e4SLinus Torvalds /* The server is looney tunes. */ 6205fdcb4577STrond Myklebust return -EREMOTEIO; 62061da177e4SLinus Torvalds } 62071da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 62081da177e4SLinus Torvalds * handle it. 62091da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 62101da177e4SLinus Torvalds * not conflict with native Linux error codes. 62111da177e4SLinus Torvalds */ 6212856dff3dSBenny Halevy return -stat; 62131da177e4SLinus Torvalds } 62141da177e4SLinus Torvalds 62151da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 62161da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 62171da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 62189f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 6219bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 62202bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 62212bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 6222cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 6223cc0175c1SChuck Lever .p_name = #proc, \ 62241da177e4SLinus Torvalds } 62251da177e4SLinus Torvalds 62261da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 62271da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 62281da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 62291da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 62301da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 62311da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 62321da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 62331da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 62341da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 62351da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 62361da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 62371da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 62381da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 62391da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 62401da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 62411da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 62421da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 62431da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 62441da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 62451da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 62461da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 62471da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 62481da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 62491da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 62501da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 62511da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 62521da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 62531da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 62541da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 62551da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 62561da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 62571da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 6258029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 625923ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 6260683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 6261d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 626299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 626399fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 6264fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 62650f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 6266fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 62672050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 626818019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 6269b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 6270b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 627199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 62721da177e4SLinus Torvalds }; 62731da177e4SLinus Torvalds 62741da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 62751da177e4SLinus Torvalds .number = 4, 6276e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 62771da177e4SLinus Torvalds .procs = nfs4_procedures 62781da177e4SLinus Torvalds }; 62791da177e4SLinus Torvalds 62801da177e4SLinus Torvalds /* 62811da177e4SLinus Torvalds * Local variables: 62821da177e4SLinus Torvalds * c-basic-offset: 8 62831da177e4SLinus Torvalds * End: 62841da177e4SLinus Torvalds */ 6285