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 138789d1ea65SAndy Adamson static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid) 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); 139589d1ea65SAndy Adamson if (zero_seqid) 139689d1ea65SAndy Adamson stateid.stateid.seqid = 0; 139734558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 13981da177e4SLinus Torvalds } else 139934558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 14001da177e4SLinus Torvalds } 14011da177e4SLinus Torvalds 1402cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 14031da177e4SLinus Torvalds { 14048687b63aSAl Viro __be32 *p; 14051da177e4SLinus Torvalds 140613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 140734558513SBenny Halevy *p = cpu_to_be32(OP_READ); 14081da177e4SLinus Torvalds 140989d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 141089d1ea65SAndy Adamson hdr->minorversion); 14111da177e4SLinus Torvalds 141213c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1413b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 141434558513SBenny Halevy *p = cpu_to_be32(args->count); 1415d017931cSAndy Adamson hdr->nops++; 1416dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 14171da177e4SLinus Torvalds } 14181da177e4SLinus Torvalds 1419cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 14201da177e4SLinus Torvalds { 142182f2e547SBryan Schumaker uint32_t attrs[2] = {0, 0}; 14226f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 14238687b63aSAl Viro __be32 *p; 14241da177e4SLinus Torvalds 142582f2e547SBryan Schumaker if (readdir->plus) { 142682f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 142782f2e547SBryan Schumaker FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE; 142882f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 142982f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 143082f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 143182f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 14326f7a35bdSTrond Myklebust dircount >>= 1; 143382f2e547SBryan Schumaker } 143482f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID; 143582f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID; 143697d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 143797d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 143897d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 143997d312d0SManoj Naik else 144097d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 14416f7a35bdSTrond Myklebust 14426f7a35bdSTrond Myklebust p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 14436f7a35bdSTrond Myklebust *p++ = cpu_to_be32(OP_READDIR); 14446f7a35bdSTrond Myklebust p = xdr_encode_hyper(p, readdir->cookie); 14456f7a35bdSTrond Myklebust p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 14466f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 14476f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 14486f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 144982f2e547SBryan Schumaker 1450e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 145134558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1452d017931cSAndy Adamson hdr->nops++; 1453dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 145444109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 145544109241SFred Isaman __func__, 1456eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1457eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1458eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1459eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1460eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 14611da177e4SLinus Torvalds } 14621da177e4SLinus Torvalds 1463cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 14641da177e4SLinus Torvalds { 14658687b63aSAl Viro __be32 *p; 14661da177e4SLinus Torvalds 146713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146834558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1469d017931cSAndy Adamson hdr->nops++; 1470dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 14711da177e4SLinus Torvalds } 14721da177e4SLinus Torvalds 1473cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 14741da177e4SLinus Torvalds { 14758687b63aSAl Viro __be32 *p; 14761da177e4SLinus Torvalds 147713c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1478e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1479811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1480d017931cSAndy Adamson hdr->nops++; 1481dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 14821da177e4SLinus Torvalds } 14831da177e4SLinus Torvalds 1484cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 14851da177e4SLinus Torvalds { 14868687b63aSAl Viro __be32 *p; 14871da177e4SLinus Torvalds 1488811652bdSBenny Halevy p = reserve_space(xdr, 4); 1489811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1490811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1491811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1492d017931cSAndy Adamson hdr->nops++; 1493dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14941da177e4SLinus Torvalds } 14951da177e4SLinus Torvalds 1496cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14971da177e4SLinus Torvalds { 14988687b63aSAl Viro __be32 *p; 14991da177e4SLinus Torvalds 150013c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1501e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 150234558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1503d017931cSAndy Adamson hdr->nops++; 1504dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 15051da177e4SLinus Torvalds } 15061da177e4SLinus Torvalds 1507cf8cdbe5SAndy Adamson static void 1508d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 150956ae19f3STrond Myklebust { 15108687b63aSAl Viro __be32 *p; 151156ae19f3STrond Myklebust 151213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 151334558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1514d017931cSAndy Adamson hdr->nops++; 1515dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 151656ae19f3STrond Myklebust } 151756ae19f3STrond Myklebust 15189f06c719SChuck Lever static void 1519d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 152023ec6965SJ. Bruce Fields { 15218687b63aSAl Viro __be32 *p; 152223ec6965SJ. Bruce Fields 152313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1524e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 152534558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 152613c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1527e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 152834558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 15299f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 153013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 153134558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 153223ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1533d017931cSAndy Adamson hdr->nops++; 1534dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 153523ec6965SJ. Bruce Fields } 153623ec6965SJ. Bruce Fields 1537cf8cdbe5SAndy Adamson static void 1538d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15391da177e4SLinus Torvalds { 15408687b63aSAl Viro __be32 *p; 15411da177e4SLinus Torvalds 154213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 154334558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1544d017931cSAndy Adamson hdr->nops++; 1545dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 15461da177e4SLinus Torvalds } 15471da177e4SLinus Torvalds 1548cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 15491da177e4SLinus Torvalds { 15508687b63aSAl Viro __be32 *p; 15511da177e4SLinus Torvalds 155213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1553e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 155434558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1555d017931cSAndy Adamson hdr->nops++; 1556dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1557cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 15581da177e4SLinus Torvalds } 15591da177e4SLinus Torvalds 1560cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 15611da177e4SLinus Torvalds { 15628687b63aSAl Viro __be32 *p; 15631da177e4SLinus Torvalds 156413c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1565e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 156634558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 15671da177e4SLinus Torvalds 15681da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 156913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 157034558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 15711da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 15721da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 157313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 157434558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1575d017931cSAndy Adamson hdr->nops++; 1576dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 15771da177e4SLinus Torvalds } 15781da177e4SLinus Torvalds 1579bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 15801da177e4SLinus Torvalds { 15818687b63aSAl Viro __be32 *p; 15821da177e4SLinus Torvalds 158313c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1584e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1585bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1586bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1587d017931cSAndy Adamson hdr->nops++; 1588dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15891da177e4SLinus Torvalds } 15901da177e4SLinus Torvalds 1591cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15921da177e4SLinus Torvalds { 15938687b63aSAl Viro __be32 *p; 15941da177e4SLinus Torvalds 159513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 159634558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 15971da177e4SLinus Torvalds 159889d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 159989d1ea65SAndy Adamson hdr->minorversion); 16001da177e4SLinus Torvalds 160113c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1602b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1603e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 160434558513SBenny Halevy *p = cpu_to_be32(args->count); 16051da177e4SLinus Torvalds 16061da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1607d017931cSAndy Adamson hdr->nops++; 1608dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 16091da177e4SLinus Torvalds } 16101da177e4SLinus Torvalds 1611cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16121da177e4SLinus Torvalds { 16138687b63aSAl Viro __be32 *p; 16141da177e4SLinus Torvalds 161513c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 16161da177e4SLinus Torvalds 1617e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 161834558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1619d017931cSAndy Adamson hdr->nops++; 1620dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 16211da177e4SLinus Torvalds } 16229b7b9fccSAndy Adamson 162399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16249b7b9fccSAndy Adamson /* NFSv4.1 operations */ 162599fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 162699fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 162799fe60d0SBenny Halevy struct compound_hdr *hdr) 162899fe60d0SBenny Halevy { 162999fe60d0SBenny Halevy __be32 *p; 163099fe60d0SBenny Halevy 163113c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1632e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 163334558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 163499fe60d0SBenny Halevy 163599fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 163699fe60d0SBenny Halevy 163713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1638e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1639e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 164034558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 164199fe60d0SBenny Halevy hdr->nops++; 164299fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 164399fe60d0SBenny Halevy } 1644fc931582SAndy Adamson 1645fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1646fc931582SAndy Adamson struct nfs41_create_session_args *args, 1647fc931582SAndy Adamson struct compound_hdr *hdr) 1648fc931582SAndy Adamson { 1649fc931582SAndy Adamson __be32 *p; 1650fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1651fc931582SAndy Adamson uint32_t len; 1652fc931582SAndy Adamson struct nfs_client *clp = args->client; 16538e0d46e1SMike Sager u32 max_resp_sz_cached; 16548e0d46e1SMike Sager 16558e0d46e1SMike Sager /* 16568e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 16578e0d46e1SMike Sager * 2 is the verifier. 16588e0d46e1SMike Sager */ 16598e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 16608e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1661fc931582SAndy Adamson 1662fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1663fc931582SAndy Adamson clp->cl_ipaddr); 166442edd698SBenny Halevy 166513c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1666e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1667114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1668e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1669e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1670fc931582SAndy Adamson 1671fc931582SAndy Adamson /* Fore Channel */ 1672e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1673e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1674e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 16758e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1676e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1677e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1678e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1679fc931582SAndy Adamson 1680fc931582SAndy Adamson /* Back Channel */ 1681e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1682e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1683e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1684e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1685e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1686e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1687e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1688fc931582SAndy Adamson 1689e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1690e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1691e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1692fc931582SAndy Adamson 1693fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1694e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1695811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1696e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1697e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 169834558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1699fc931582SAndy Adamson hdr->nops++; 1700fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1701fc931582SAndy Adamson } 17020f3e66c6SAndy Adamson 17030f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 17040f3e66c6SAndy Adamson struct nfs4_session *session, 17050f3e66c6SAndy Adamson struct compound_hdr *hdr) 17060f3e66c6SAndy Adamson { 17070f3e66c6SAndy Adamson __be32 *p; 170813c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1709e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 171034558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17110f3e66c6SAndy Adamson hdr->nops++; 17120f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 17130f3e66c6SAndy Adamson } 171418019753SRicardo Labiaga 171518019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 171618019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 171718019753SRicardo Labiaga struct compound_hdr *hdr) 171818019753SRicardo Labiaga { 171918019753SRicardo Labiaga __be32 *p; 172018019753SRicardo Labiaga 172118019753SRicardo Labiaga p = reserve_space(xdr, 8); 172218019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 172318019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 172418019753SRicardo Labiaga hdr->nops++; 172518019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 172618019753SRicardo Labiaga } 172799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 172899fe60d0SBenny Halevy 17299b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 17309b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 17319b7b9fccSAndy Adamson struct compound_hdr *hdr) 17329b7b9fccSAndy Adamson { 17339b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 17349b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1735fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1736fc01cea9SAndy Adamson struct nfs4_slot *slot; 1737fc01cea9SAndy Adamson __be32 *p; 17389b7b9fccSAndy Adamson 17399b7b9fccSAndy Adamson if (!session) 17409b7b9fccSAndy Adamson return; 17419b7b9fccSAndy Adamson 1742fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1743fc01cea9SAndy Adamson 1744fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1745fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1746fc01cea9SAndy Adamson 174713c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1748e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1749fc01cea9SAndy Adamson 1750fc01cea9SAndy Adamson /* 1751fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1752fc01cea9SAndy Adamson */ 1753fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1754fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1755fc01cea9SAndy Adamson __func__, 1756fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1757fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1758fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1759fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1760fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1761fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 176293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1763e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1764e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1765e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 176634558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 17679b7b9fccSAndy Adamson hdr->nops++; 17689b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 17699b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 17709b7b9fccSAndy Adamson } 17719b7b9fccSAndy Adamson 1772b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1773b1f69b75SAndy Adamson static void 1774b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1775b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1776b1f69b75SAndy Adamson struct compound_hdr *hdr) 1777b1f69b75SAndy Adamson { 1778b1f69b75SAndy Adamson __be32 *p; 1779b1f69b75SAndy Adamson 1780b1f69b75SAndy Adamson p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); 1781b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICEINFO); 1782b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1783b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1784b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1785b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1786b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1787b1f69b75SAndy Adamson hdr->nops++; 1788b1f69b75SAndy Adamson hdr->replen += decode_getdeviceinfo_maxsz; 1789b1f69b75SAndy Adamson } 1790b1f69b75SAndy Adamson 1791b1f69b75SAndy Adamson static void 1792b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1793b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1794b1f69b75SAndy Adamson struct compound_hdr *hdr) 1795b1f69b75SAndy Adamson { 1796b1f69b75SAndy Adamson __be32 *p; 1797b1f69b75SAndy Adamson 1798b1f69b75SAndy Adamson p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 1799b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTGET); 1800b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1801b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1802b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1803b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1804b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1805b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1806cf7d63f1SFred Isaman p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 1807b1f69b75SAndy Adamson *p = cpu_to_be32(args->maxcount); 1808b1f69b75SAndy Adamson 1809b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1810b1f69b75SAndy Adamson __func__, 1811b1f69b75SAndy Adamson args->type, 1812b1f69b75SAndy Adamson args->range.iomode, 1813b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1814b1f69b75SAndy Adamson (unsigned long)args->range.length, 1815b1f69b75SAndy Adamson args->maxcount); 1816b1f69b75SAndy Adamson hdr->nops++; 1817b1f69b75SAndy Adamson hdr->replen += decode_layoutget_maxsz; 1818b1f69b75SAndy Adamson } 1819b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 1820b1f69b75SAndy Adamson 18211da177e4SLinus Torvalds /* 18221da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 18231da177e4SLinus Torvalds */ 18241da177e4SLinus Torvalds 182566cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 182666cc0429SBenny Halevy { 182766cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 182866cc0429SBenny Halevy if (args->sa_session) 1829a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 183066cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 183166cc0429SBenny Halevy return 0; 183266cc0429SBenny Halevy } 183366cc0429SBenny Halevy 18341da177e4SLinus Torvalds /* 18351da177e4SLinus Torvalds * Encode an ACCESS request 18361da177e4SLinus Torvalds */ 18379f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 18389f06c719SChuck Lever const struct nfs4_accessargs *args) 18391da177e4SLinus Torvalds { 18401da177e4SLinus Torvalds struct compound_hdr hdr = { 184166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18421da177e4SLinus Torvalds }; 18431da177e4SLinus Torvalds 18449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18459f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18469f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 18479f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 18489f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1849d017931cSAndy Adamson encode_nops(&hdr); 18501da177e4SLinus Torvalds } 18511da177e4SLinus Torvalds 18521da177e4SLinus Torvalds /* 18531da177e4SLinus Torvalds * Encode LOOKUP request 18541da177e4SLinus Torvalds */ 18559f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 18569f06c719SChuck Lever const struct nfs4_lookup_arg *args) 18571da177e4SLinus Torvalds { 18581da177e4SLinus Torvalds struct compound_hdr hdr = { 185966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18601da177e4SLinus Torvalds }; 18611da177e4SLinus Torvalds 18629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18649f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 18659f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 18669f06c719SChuck Lever encode_getfh(xdr, &hdr); 18679f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1868d017931cSAndy Adamson encode_nops(&hdr); 18691da177e4SLinus Torvalds } 18701da177e4SLinus Torvalds 18711da177e4SLinus Torvalds /* 18721da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 18731da177e4SLinus Torvalds */ 18749f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 18759f06c719SChuck Lever struct xdr_stream *xdr, 18769f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 18771da177e4SLinus Torvalds { 18781da177e4SLinus Torvalds struct compound_hdr hdr = { 187966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18801da177e4SLinus Torvalds }; 18811da177e4SLinus Torvalds 18829f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 18839f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 18849f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 18859f06c719SChuck Lever encode_getfh(xdr, &hdr); 18869f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1887d017931cSAndy Adamson encode_nops(&hdr); 18881da177e4SLinus Torvalds } 18891da177e4SLinus Torvalds 18901da177e4SLinus Torvalds /* 18911da177e4SLinus Torvalds * Encode REMOVE request 18921da177e4SLinus Torvalds */ 18939f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 18949f06c719SChuck Lever const struct nfs_removeargs *args) 18951da177e4SLinus Torvalds { 18961da177e4SLinus Torvalds struct compound_hdr hdr = { 189766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18981da177e4SLinus Torvalds }; 18991da177e4SLinus Torvalds 19009f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19019f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19029f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19039f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 19049f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1905d017931cSAndy Adamson encode_nops(&hdr); 19061da177e4SLinus Torvalds } 19071da177e4SLinus Torvalds 19081da177e4SLinus Torvalds /* 19091da177e4SLinus Torvalds * Encode RENAME request 19101da177e4SLinus Torvalds */ 19119f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 19129f06c719SChuck Lever const struct nfs_renameargs *args) 19131da177e4SLinus Torvalds { 19141da177e4SLinus Torvalds struct compound_hdr hdr = { 191566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19161da177e4SLinus Torvalds }; 19171da177e4SLinus Torvalds 19189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19199f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19209f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 19219f06c719SChuck Lever encode_savefh(xdr, &hdr); 19229f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 19239f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 19249f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19259f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19269f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1927d017931cSAndy Adamson encode_nops(&hdr); 19281da177e4SLinus Torvalds } 19291da177e4SLinus Torvalds 19301da177e4SLinus Torvalds /* 19311da177e4SLinus Torvalds * Encode LINK request 19321da177e4SLinus Torvalds */ 19339f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 19349f06c719SChuck Lever const struct nfs4_link_arg *args) 19351da177e4SLinus Torvalds { 19361da177e4SLinus Torvalds struct compound_hdr hdr = { 193766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19381da177e4SLinus Torvalds }; 19391da177e4SLinus Torvalds 19409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19429f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19439f06c719SChuck Lever encode_savefh(xdr, &hdr); 19449f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 19459f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 19469f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19479f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19489f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1949d017931cSAndy Adamson encode_nops(&hdr); 19501da177e4SLinus Torvalds } 19511da177e4SLinus Torvalds 19521da177e4SLinus Torvalds /* 19531da177e4SLinus Torvalds * Encode CREATE request 19541da177e4SLinus Torvalds */ 19559f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 19569f06c719SChuck Lever const struct nfs4_create_arg *args) 19571da177e4SLinus Torvalds { 19581da177e4SLinus Torvalds struct compound_hdr hdr = { 195966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19601da177e4SLinus Torvalds }; 19611da177e4SLinus Torvalds 19629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19649f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 19659f06c719SChuck Lever encode_savefh(xdr, &hdr); 19669f06c719SChuck Lever encode_create(xdr, args, &hdr); 19679f06c719SChuck Lever encode_getfh(xdr, &hdr); 19689f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19699f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19709f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1971d017931cSAndy Adamson encode_nops(&hdr); 19721da177e4SLinus Torvalds } 19731da177e4SLinus Torvalds 19741da177e4SLinus Torvalds /* 19751da177e4SLinus Torvalds * Encode SYMLINK request 19761da177e4SLinus Torvalds */ 19779f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 19789f06c719SChuck Lever const struct nfs4_create_arg *args) 19791da177e4SLinus Torvalds { 19809f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 19811da177e4SLinus Torvalds } 19821da177e4SLinus Torvalds 19831da177e4SLinus Torvalds /* 19841da177e4SLinus Torvalds * Encode GETATTR request 19851da177e4SLinus Torvalds */ 19869f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 19879f06c719SChuck Lever const struct nfs4_getattr_arg *args) 19881da177e4SLinus Torvalds { 19891da177e4SLinus Torvalds struct compound_hdr hdr = { 199066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19911da177e4SLinus Torvalds }; 19921da177e4SLinus Torvalds 19939f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19949f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19959f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19969f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1997d017931cSAndy Adamson encode_nops(&hdr); 19981da177e4SLinus Torvalds } 19991da177e4SLinus Torvalds 20001da177e4SLinus Torvalds /* 20011da177e4SLinus Torvalds * Encode a CLOSE request 20021da177e4SLinus Torvalds */ 20039f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 20049f06c719SChuck Lever struct nfs_closeargs *args) 20051da177e4SLinus Torvalds { 20061da177e4SLinus Torvalds struct compound_hdr hdr = { 200766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20081da177e4SLinus Torvalds }; 20091da177e4SLinus Torvalds 20109f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20119f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20129f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20139f06c719SChuck Lever encode_close(xdr, args, &hdr); 20149f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2015d017931cSAndy Adamson encode_nops(&hdr); 20161da177e4SLinus Torvalds } 20171da177e4SLinus Torvalds 20181da177e4SLinus Torvalds /* 20191da177e4SLinus Torvalds * Encode an OPEN request 20201da177e4SLinus Torvalds */ 20219f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 20229f06c719SChuck Lever struct nfs_openargs *args) 20231da177e4SLinus Torvalds { 20241da177e4SLinus Torvalds struct compound_hdr hdr = { 202566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20261da177e4SLinus Torvalds }; 20271da177e4SLinus Torvalds 20289f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20299f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20309f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20319f06c719SChuck Lever encode_savefh(xdr, &hdr); 20329f06c719SChuck Lever encode_open(xdr, args, &hdr); 20339f06c719SChuck Lever encode_getfh(xdr, &hdr); 20349f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 20359f06c719SChuck Lever encode_restorefh(xdr, &hdr); 20369f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2037d017931cSAndy Adamson encode_nops(&hdr); 20381da177e4SLinus Torvalds } 20391da177e4SLinus Torvalds 20401da177e4SLinus Torvalds /* 20411da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 20421da177e4SLinus Torvalds */ 20439f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 20449f06c719SChuck Lever struct xdr_stream *xdr, 20459f06c719SChuck Lever struct nfs_open_confirmargs *args) 20461da177e4SLinus Torvalds { 20471da177e4SLinus Torvalds struct compound_hdr hdr = { 2048d017931cSAndy Adamson .nops = 0, 20491da177e4SLinus Torvalds }; 20501da177e4SLinus Torvalds 20519f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20529f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20539f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2054d017931cSAndy Adamson encode_nops(&hdr); 20551da177e4SLinus Torvalds } 20561da177e4SLinus Torvalds 20571da177e4SLinus Torvalds /* 20581da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 20591da177e4SLinus Torvalds */ 20609f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 20619f06c719SChuck Lever struct xdr_stream *xdr, 20629f06c719SChuck Lever struct nfs_openargs *args) 20631da177e4SLinus Torvalds { 20641da177e4SLinus Torvalds struct compound_hdr hdr = { 206566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20661da177e4SLinus Torvalds }; 20671da177e4SLinus Torvalds 20689f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20699f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20709f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20719f06c719SChuck Lever encode_open(xdr, args, &hdr); 20729f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2073d017931cSAndy Adamson encode_nops(&hdr); 20741da177e4SLinus Torvalds } 20751da177e4SLinus Torvalds 20761da177e4SLinus Torvalds /* 20771da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 20781da177e4SLinus Torvalds */ 20799f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 20809f06c719SChuck Lever struct xdr_stream *xdr, 20819f06c719SChuck Lever struct nfs_closeargs *args) 20821da177e4SLinus Torvalds { 20831da177e4SLinus Torvalds struct compound_hdr hdr = { 208466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20851da177e4SLinus Torvalds }; 20861da177e4SLinus Torvalds 20879f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20889f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20899f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20909f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 20919f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2092d017931cSAndy Adamson encode_nops(&hdr); 20931da177e4SLinus Torvalds } 20941da177e4SLinus Torvalds 20951da177e4SLinus Torvalds /* 20961da177e4SLinus Torvalds * Encode a LOCK request 20971da177e4SLinus Torvalds */ 20989f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 20999f06c719SChuck Lever struct nfs_lock_args *args) 21001da177e4SLinus Torvalds { 21011da177e4SLinus Torvalds struct compound_hdr hdr = { 210266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21031da177e4SLinus Torvalds }; 21041da177e4SLinus Torvalds 21059f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21069f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21079f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21089f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2109d017931cSAndy Adamson encode_nops(&hdr); 21101da177e4SLinus Torvalds } 21111da177e4SLinus Torvalds 21121da177e4SLinus Torvalds /* 21131da177e4SLinus Torvalds * Encode a LOCKT request 21141da177e4SLinus Torvalds */ 21159f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 21169f06c719SChuck Lever struct nfs_lockt_args *args) 21171da177e4SLinus Torvalds { 21181da177e4SLinus Torvalds struct compound_hdr hdr = { 211966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21201da177e4SLinus Torvalds }; 21211da177e4SLinus Torvalds 21229f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21239f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21249f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21259f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2126d017931cSAndy Adamson encode_nops(&hdr); 21271da177e4SLinus Torvalds } 21281da177e4SLinus Torvalds 21291da177e4SLinus Torvalds /* 21301da177e4SLinus Torvalds * Encode a LOCKU request 21311da177e4SLinus Torvalds */ 21329f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 21339f06c719SChuck Lever struct nfs_locku_args *args) 21341da177e4SLinus Torvalds { 21351da177e4SLinus Torvalds struct compound_hdr hdr = { 213666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21371da177e4SLinus Torvalds }; 21381da177e4SLinus Torvalds 21399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21409f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21419f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21429f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2143d017931cSAndy Adamson encode_nops(&hdr); 21441da177e4SLinus Torvalds } 21451da177e4SLinus Torvalds 21469f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 21479f06c719SChuck Lever struct xdr_stream *xdr, 21489f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2149d3c7b7ccSTrond Myklebust { 2150d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2151d3c7b7ccSTrond Myklebust .minorversion = 0, 2152d3c7b7ccSTrond Myklebust }; 2153d3c7b7ccSTrond Myklebust 21549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21559f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2156d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2157d3c7b7ccSTrond Myklebust } 2158d3c7b7ccSTrond Myklebust 21591da177e4SLinus Torvalds /* 21601da177e4SLinus Torvalds * Encode a READLINK request 21611da177e4SLinus Torvalds */ 21629f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 21639f06c719SChuck Lever const struct nfs4_readlink *args) 21641da177e4SLinus Torvalds { 21651da177e4SLinus Torvalds struct compound_hdr hdr = { 216666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21671da177e4SLinus Torvalds }; 21681da177e4SLinus Torvalds 21699f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21709f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21719f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21729f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2173e3a535e1STrond Myklebust 217428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2175e3a535e1STrond Myklebust args->pgbase, args->pglen); 2176d017931cSAndy Adamson encode_nops(&hdr); 21771da177e4SLinus Torvalds } 21781da177e4SLinus Torvalds 21791da177e4SLinus Torvalds /* 21801da177e4SLinus Torvalds * Encode a READDIR request 21811da177e4SLinus Torvalds */ 21829f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 21839f06c719SChuck Lever const struct nfs4_readdir_arg *args) 21841da177e4SLinus Torvalds { 21851da177e4SLinus Torvalds struct compound_hdr hdr = { 218666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21871da177e4SLinus Torvalds }; 21881da177e4SLinus Torvalds 21899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21919f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21929f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2193d6ac02dfSTrond Myklebust 219428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2195d6ac02dfSTrond Myklebust args->pgbase, args->count); 2196d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 219728f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2198d6ac02dfSTrond Myklebust args->pgbase, args->count); 2199d017931cSAndy Adamson encode_nops(&hdr); 22001da177e4SLinus Torvalds } 22011da177e4SLinus Torvalds 22021da177e4SLinus Torvalds /* 22031da177e4SLinus Torvalds * Encode a READ request 22041da177e4SLinus Torvalds */ 22059f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 22069f06c719SChuck Lever struct nfs_readargs *args) 22071da177e4SLinus Torvalds { 22081da177e4SLinus Torvalds struct compound_hdr hdr = { 220966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22101da177e4SLinus Torvalds }; 22111da177e4SLinus Torvalds 22129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22139f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22149f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22159f06c719SChuck Lever encode_read(xdr, args, &hdr); 22161da177e4SLinus Torvalds 221728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 22181da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 22194f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2220d017931cSAndy Adamson encode_nops(&hdr); 22211da177e4SLinus Torvalds } 22221da177e4SLinus Torvalds 22231da177e4SLinus Torvalds /* 22241da177e4SLinus Torvalds * Encode an SETATTR request 22251da177e4SLinus Torvalds */ 22269f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22279f06c719SChuck Lever struct nfs_setattrargs *args) 22281da177e4SLinus Torvalds { 22291da177e4SLinus Torvalds struct compound_hdr hdr = { 223066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22311da177e4SLinus Torvalds }; 22321da177e4SLinus Torvalds 22339f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22349f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22359f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22369f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 22379f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2238d017931cSAndy Adamson encode_nops(&hdr); 22391da177e4SLinus Torvalds } 22401da177e4SLinus Torvalds 22411da177e4SLinus Torvalds /* 2242029d105eSJ. Bruce Fields * Encode a GETACL request 2243029d105eSJ. Bruce Fields */ 22449f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2245029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2246029d105eSJ. Bruce Fields { 2247029d105eSJ. Bruce Fields struct compound_hdr hdr = { 224866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2249029d105eSJ. Bruce Fields }; 225028f56694SBenny Halevy uint32_t replen; 2251029d105eSJ. Bruce Fields 22529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22539f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22549f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2255d327cf74SJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; 22569f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2257cf8cdbe5SAndy Adamson 225828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2259029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2260d017931cSAndy Adamson encode_nops(&hdr); 2261029d105eSJ. Bruce Fields } 2262029d105eSJ. Bruce Fields 2263029d105eSJ. Bruce Fields /* 22641da177e4SLinus Torvalds * Encode a WRITE request 22651da177e4SLinus Torvalds */ 22669f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 22679f06c719SChuck Lever struct nfs_writeargs *args) 22681da177e4SLinus Torvalds { 22691da177e4SLinus Torvalds struct compound_hdr hdr = { 227066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22711da177e4SLinus Torvalds }; 22721da177e4SLinus Torvalds 22739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22749f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22759f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22769f06c719SChuck Lever encode_write(xdr, args, &hdr); 22774f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 22787ffd1064SFred Isaman if (args->bitmask) 22799f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2280d017931cSAndy Adamson encode_nops(&hdr); 22811da177e4SLinus Torvalds } 22821da177e4SLinus Torvalds 22831da177e4SLinus Torvalds /* 22841da177e4SLinus Torvalds * a COMMIT request 22851da177e4SLinus Torvalds */ 22869f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 22879f06c719SChuck Lever struct nfs_writeargs *args) 22881da177e4SLinus Torvalds { 22891da177e4SLinus Torvalds struct compound_hdr hdr = { 229066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22911da177e4SLinus Torvalds }; 22921da177e4SLinus Torvalds 22939f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22949f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22959f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22969f06c719SChuck Lever encode_commit(xdr, args, &hdr); 22979f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2298d017931cSAndy Adamson encode_nops(&hdr); 22991da177e4SLinus Torvalds } 23001da177e4SLinus Torvalds 23011da177e4SLinus Torvalds /* 23021da177e4SLinus Torvalds * FSINFO request 23031da177e4SLinus Torvalds */ 23049f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 23059f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 23061da177e4SLinus Torvalds { 23071da177e4SLinus Torvalds struct compound_hdr hdr = { 230866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23091da177e4SLinus Torvalds }; 23101da177e4SLinus Torvalds 23119f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23129f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23139f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23149f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2315d017931cSAndy Adamson encode_nops(&hdr); 23161da177e4SLinus Torvalds } 23171da177e4SLinus Torvalds 23181da177e4SLinus Torvalds /* 23191da177e4SLinus Torvalds * a PATHCONF request 23201da177e4SLinus Torvalds */ 23219f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 23229f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 23231da177e4SLinus Torvalds { 23241da177e4SLinus Torvalds struct compound_hdr hdr = { 232566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23261da177e4SLinus Torvalds }; 23271da177e4SLinus Torvalds 23289f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23299f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23309f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23319f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2332d017931cSAndy Adamson &hdr); 2333d017931cSAndy Adamson encode_nops(&hdr); 23341da177e4SLinus Torvalds } 23351da177e4SLinus Torvalds 23361da177e4SLinus Torvalds /* 23371da177e4SLinus Torvalds * a STATFS request 23381da177e4SLinus Torvalds */ 23399f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 23409f06c719SChuck Lever const struct nfs4_statfs_arg *args) 23411da177e4SLinus Torvalds { 23421da177e4SLinus Torvalds struct compound_hdr hdr = { 234366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23441da177e4SLinus Torvalds }; 23451da177e4SLinus Torvalds 23469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23479f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23489f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23499f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2350d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2351d017931cSAndy Adamson encode_nops(&hdr); 23521da177e4SLinus Torvalds } 23531da177e4SLinus Torvalds 23541da177e4SLinus Torvalds /* 23551da177e4SLinus Torvalds * GETATTR_BITMAP request 23561da177e4SLinus Torvalds */ 23579f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 23589f06c719SChuck Lever struct xdr_stream *xdr, 235943652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 23601da177e4SLinus Torvalds { 23611da177e4SLinus Torvalds struct compound_hdr hdr = { 236266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23631da177e4SLinus Torvalds }; 23641da177e4SLinus Torvalds 23659f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23669f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23679f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 23689f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 23691da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 23701da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2371d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2372d017931cSAndy Adamson encode_nops(&hdr); 23731da177e4SLinus Torvalds } 23741da177e4SLinus Torvalds 23751da177e4SLinus Torvalds /* 23761da177e4SLinus Torvalds * a RENEW request 23771da177e4SLinus Torvalds */ 23789f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 23799f06c719SChuck Lever struct nfs_client *clp) 23801da177e4SLinus Torvalds { 23811da177e4SLinus Torvalds struct compound_hdr hdr = { 2382d017931cSAndy Adamson .nops = 0, 23831da177e4SLinus Torvalds }; 23841da177e4SLinus Torvalds 23859f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23869f06c719SChuck Lever encode_renew(xdr, clp, &hdr); 2387d017931cSAndy Adamson encode_nops(&hdr); 23881da177e4SLinus Torvalds } 23891da177e4SLinus Torvalds 23901da177e4SLinus Torvalds /* 23911da177e4SLinus Torvalds * a SETCLIENTID request 23921da177e4SLinus Torvalds */ 23939f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 23949f06c719SChuck Lever struct xdr_stream *xdr, 23959f06c719SChuck Lever struct nfs4_setclientid *sc) 23961da177e4SLinus Torvalds { 23971da177e4SLinus Torvalds struct compound_hdr hdr = { 2398d017931cSAndy Adamson .nops = 0, 23991da177e4SLinus Torvalds }; 24001da177e4SLinus Torvalds 24019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24029f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2403d017931cSAndy Adamson encode_nops(&hdr); 24041da177e4SLinus Torvalds } 24051da177e4SLinus Torvalds 24061da177e4SLinus Torvalds /* 24071da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 24081da177e4SLinus Torvalds */ 24099f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 24109f06c719SChuck Lever struct xdr_stream *xdr, 24119f06c719SChuck Lever struct nfs4_setclientid_res *arg) 24121da177e4SLinus Torvalds { 24131da177e4SLinus Torvalds struct compound_hdr hdr = { 2414d017931cSAndy Adamson .nops = 0, 24151da177e4SLinus Torvalds }; 24161da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24171da177e4SLinus Torvalds 24189f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24199f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 24209f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 24219f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2422d017931cSAndy Adamson encode_nops(&hdr); 24231da177e4SLinus Torvalds } 24241da177e4SLinus Torvalds 24251da177e4SLinus Torvalds /* 24261da177e4SLinus Torvalds * DELEGRETURN request 24271da177e4SLinus Torvalds */ 24289f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 24299f06c719SChuck Lever struct xdr_stream *xdr, 24309f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 24311da177e4SLinus Torvalds { 24321da177e4SLinus Torvalds struct compound_hdr hdr = { 243366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24341da177e4SLinus Torvalds }; 24351da177e4SLinus Torvalds 24369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24379f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24389f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 24399f06c719SChuck Lever encode_delegreturn(xdr, args->stateid, &hdr); 24409f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2441d017931cSAndy Adamson encode_nops(&hdr); 24421da177e4SLinus Torvalds } 24431da177e4SLinus Torvalds 24441da177e4SLinus Torvalds /* 2445683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2446683b57b4STrond Myklebust */ 24479f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 24489f06c719SChuck Lever struct xdr_stream *xdr, 24499f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2450683b57b4STrond Myklebust { 2451683b57b4STrond Myklebust struct compound_hdr hdr = { 245266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2453683b57b4STrond Myklebust }; 245428f56694SBenny Halevy uint32_t replen; 2455683b57b4STrond Myklebust 24569f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24579f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24589f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 24599f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 246028f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 24619f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2462cf8cdbe5SAndy Adamson 246328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2464683b57b4STrond Myklebust 0, PAGE_SIZE); 2465d017931cSAndy Adamson encode_nops(&hdr); 2466683b57b4STrond Myklebust } 2467683b57b4STrond Myklebust 246899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 246999fe60d0SBenny Halevy /* 247099fe60d0SBenny Halevy * EXCHANGE_ID request 247199fe60d0SBenny Halevy */ 24729f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 24739f06c719SChuck Lever struct xdr_stream *xdr, 247499fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 247599fe60d0SBenny Halevy { 247699fe60d0SBenny Halevy struct compound_hdr hdr = { 2477a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 247899fe60d0SBenny Halevy }; 247999fe60d0SBenny Halevy 24809f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24819f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 248299fe60d0SBenny Halevy encode_nops(&hdr); 248399fe60d0SBenny Halevy } 24842050f0ccSAndy Adamson 24852050f0ccSAndy Adamson /* 2486fc931582SAndy Adamson * a CREATE_SESSION request 2487fc931582SAndy Adamson */ 24889f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 24899f06c719SChuck Lever struct xdr_stream *xdr, 2490fc931582SAndy Adamson struct nfs41_create_session_args *args) 2491fc931582SAndy Adamson { 2492fc931582SAndy Adamson struct compound_hdr hdr = { 2493a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2494fc931582SAndy Adamson }; 2495fc931582SAndy Adamson 24969f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24979f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2498fc931582SAndy Adamson encode_nops(&hdr); 2499fc931582SAndy Adamson } 2500fc931582SAndy Adamson 2501fc931582SAndy Adamson /* 25020f3e66c6SAndy Adamson * a DESTROY_SESSION request 25030f3e66c6SAndy Adamson */ 25049f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 25059f06c719SChuck Lever struct xdr_stream *xdr, 25060f3e66c6SAndy Adamson struct nfs4_session *session) 25070f3e66c6SAndy Adamson { 25080f3e66c6SAndy Adamson struct compound_hdr hdr = { 2509a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 25100f3e66c6SAndy Adamson }; 25110f3e66c6SAndy Adamson 25129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25139f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 25140f3e66c6SAndy Adamson encode_nops(&hdr); 25150f3e66c6SAndy Adamson } 25160f3e66c6SAndy Adamson 25170f3e66c6SAndy Adamson /* 2518fc01cea9SAndy Adamson * a SEQUENCE request 2519fc01cea9SAndy Adamson */ 25209f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2521fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2522fc01cea9SAndy Adamson { 2523fc01cea9SAndy Adamson struct compound_hdr hdr = { 2524fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2525fc01cea9SAndy Adamson }; 2526fc01cea9SAndy Adamson 25279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25289f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2529fc01cea9SAndy Adamson encode_nops(&hdr); 2530fc01cea9SAndy Adamson } 2531fc01cea9SAndy Adamson 2532fc01cea9SAndy Adamson /* 25332050f0ccSAndy Adamson * a GET_LEASE_TIME request 25342050f0ccSAndy Adamson */ 25359f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 25369f06c719SChuck Lever struct xdr_stream *xdr, 25372050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 25382050f0ccSAndy Adamson { 25392050f0ccSAndy Adamson struct compound_hdr hdr = { 25402050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 25412050f0ccSAndy Adamson }; 25422050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 25432050f0ccSAndy Adamson 25449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25459f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 25469f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 25479f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 25482050f0ccSAndy Adamson encode_nops(&hdr); 25492050f0ccSAndy Adamson } 255018019753SRicardo Labiaga 255118019753SRicardo Labiaga /* 255218019753SRicardo Labiaga * a RECLAIM_COMPLETE request 255318019753SRicardo Labiaga */ 25549f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 25559f06c719SChuck Lever struct xdr_stream *xdr, 255618019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 255718019753SRicardo Labiaga { 255818019753SRicardo Labiaga struct compound_hdr hdr = { 255918019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 256018019753SRicardo Labiaga }; 256118019753SRicardo Labiaga 25629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25649f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 256518019753SRicardo Labiaga encode_nops(&hdr); 256618019753SRicardo Labiaga } 256718019753SRicardo Labiaga 2568b1f69b75SAndy Adamson /* 2569b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2570b1f69b75SAndy Adamson */ 25719f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 25729f06c719SChuck Lever struct xdr_stream *xdr, 2573b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2574b1f69b75SAndy Adamson { 2575b1f69b75SAndy Adamson struct compound_hdr hdr = { 2576b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2577b1f69b75SAndy Adamson }; 2578b1f69b75SAndy Adamson 25799f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25809f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25819f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2582b1f69b75SAndy Adamson 2583b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2584b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2585b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2586b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2587b1f69b75SAndy Adamson args->pdev->pglen); 2588b1f69b75SAndy Adamson 2589b1f69b75SAndy Adamson encode_nops(&hdr); 2590b1f69b75SAndy Adamson } 2591b1f69b75SAndy Adamson 2592b1f69b75SAndy Adamson /* 2593b1f69b75SAndy Adamson * Encode LAYOUTGET request 2594b1f69b75SAndy Adamson */ 25959f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 25969f06c719SChuck Lever struct xdr_stream *xdr, 2597b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2598b1f69b75SAndy Adamson { 2599b1f69b75SAndy Adamson struct compound_hdr hdr = { 2600b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2601b1f69b75SAndy Adamson }; 2602b1f69b75SAndy Adamson 26039f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26049f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26059f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 26069f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 2607b1f69b75SAndy Adamson encode_nops(&hdr); 2608b1f69b75SAndy Adamson } 260999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 261099fe60d0SBenny Halevy 2611686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2612686841b3SBenny Halevy { 2613686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2614686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2615686841b3SBenny Halevy func, xdr->end - xdr->p); 2616686841b3SBenny Halevy } 26171da177e4SLinus Torvalds 2618683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 26191da177e4SLinus Torvalds { 26208687b63aSAl Viro __be32 *p; 26211da177e4SLinus Torvalds 2622c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2623c0eae66eSBenny Halevy if (unlikely(!p)) 2624c0eae66eSBenny Halevy goto out_overflow; 2625cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2626c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2627c0eae66eSBenny Halevy if (unlikely(!p)) 2628c0eae66eSBenny Halevy goto out_overflow; 26291da177e4SLinus Torvalds *string = (char *)p; 26301da177e4SLinus Torvalds return 0; 2631c0eae66eSBenny Halevy out_overflow: 2632c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2633c0eae66eSBenny Halevy return -EIO; 26341da177e4SLinus Torvalds } 26351da177e4SLinus Torvalds 26361da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 26371da177e4SLinus Torvalds { 26388687b63aSAl Viro __be32 *p; 26391da177e4SLinus Torvalds 2640c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2641c0eae66eSBenny Halevy if (unlikely(!p)) 2642c0eae66eSBenny Halevy goto out_overflow; 26436f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2644cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 26451da177e4SLinus Torvalds 2646c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2647c0eae66eSBenny Halevy if (unlikely(!p)) 2648c0eae66eSBenny Halevy goto out_overflow; 26491da177e4SLinus Torvalds hdr->tag = (char *)p; 26501da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2651cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2652aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2653aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 26541da177e4SLinus Torvalds return 0; 2655c0eae66eSBenny Halevy out_overflow: 2656c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2657c0eae66eSBenny Halevy return -EIO; 26581da177e4SLinus Torvalds } 26591da177e4SLinus Torvalds 26601da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 26611da177e4SLinus Torvalds { 26628687b63aSAl Viro __be32 *p; 26631da177e4SLinus Torvalds uint32_t opnum; 26641da177e4SLinus Torvalds int32_t nfserr; 26651da177e4SLinus Torvalds 2666c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2667c0eae66eSBenny Halevy if (unlikely(!p)) 2668c0eae66eSBenny Halevy goto out_overflow; 26696f723f77SBenny Halevy opnum = be32_to_cpup(p++); 26701da177e4SLinus Torvalds if (opnum != expected) { 2671fe82a183SChuck Lever dprintk("nfs: Server returned operation" 26721da177e4SLinus Torvalds " %d but we issued a request for %d\n", 26731da177e4SLinus Torvalds opnum, expected); 26741da177e4SLinus Torvalds return -EIO; 26751da177e4SLinus Torvalds } 2676cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 26771da177e4SLinus Torvalds if (nfserr != NFS_OK) 2678856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 26791da177e4SLinus Torvalds return 0; 2680c0eae66eSBenny Halevy out_overflow: 2681c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2682c0eae66eSBenny Halevy return -EIO; 26831da177e4SLinus Torvalds } 26841da177e4SLinus Torvalds 26851da177e4SLinus Torvalds /* Dummy routine */ 2686adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 26871da177e4SLinus Torvalds { 26888687b63aSAl Viro __be32 *p; 2689683b57b4STrond Myklebust unsigned int strlen; 26901da177e4SLinus Torvalds char *str; 26911da177e4SLinus Torvalds 2692c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2693c0eae66eSBenny Halevy if (likely(p)) 26941da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2695c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2696c0eae66eSBenny Halevy return -EIO; 26971da177e4SLinus Torvalds } 26981da177e4SLinus Torvalds 26991da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 27001da177e4SLinus Torvalds { 27018687b63aSAl Viro uint32_t bmlen; 27028687b63aSAl Viro __be32 *p; 27031da177e4SLinus Torvalds 2704c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2705c0eae66eSBenny Halevy if (unlikely(!p)) 2706c0eae66eSBenny Halevy goto out_overflow; 2707cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 27081da177e4SLinus Torvalds 27091da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2710c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2711c0eae66eSBenny Halevy if (unlikely(!p)) 2712c0eae66eSBenny Halevy goto out_overflow; 27131da177e4SLinus Torvalds if (bmlen > 0) { 27146f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 27151da177e4SLinus Torvalds if (bmlen > 1) 2716cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 27171da177e4SLinus Torvalds } 27181da177e4SLinus Torvalds return 0; 2719c0eae66eSBenny Halevy out_overflow: 2720c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2721c0eae66eSBenny Halevy return -EIO; 27221da177e4SLinus Torvalds } 27231da177e4SLinus Torvalds 27248687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 27251da177e4SLinus Torvalds { 27268687b63aSAl Viro __be32 *p; 27271da177e4SLinus Torvalds 2728c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2729c0eae66eSBenny Halevy if (unlikely(!p)) 2730c0eae66eSBenny Halevy goto out_overflow; 2731cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 27321da177e4SLinus Torvalds *savep = xdr->p; 27331da177e4SLinus Torvalds return 0; 2734c0eae66eSBenny Halevy out_overflow: 2735c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2736c0eae66eSBenny Halevy return -EIO; 27371da177e4SLinus Torvalds } 27381da177e4SLinus Torvalds 27391da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 27401da177e4SLinus Torvalds { 27411da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 27423388bff5SRoman Borisov int ret; 27433388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 27443388bff5SRoman Borisov if (unlikely(ret < 0)) 27453388bff5SRoman Borisov return ret; 27461da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 27471da177e4SLinus Torvalds } else 27481da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 274944109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 27501da177e4SLinus Torvalds return 0; 27511da177e4SLinus Torvalds } 27521da177e4SLinus Torvalds 27531da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 27541da177e4SLinus Torvalds { 27558687b63aSAl Viro __be32 *p; 2756409924e4STrond Myklebust int ret = 0; 27571da177e4SLinus Torvalds 27581da177e4SLinus Torvalds *type = 0; 27591da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 27601da177e4SLinus Torvalds return -EIO; 27611da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2762c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2763c0eae66eSBenny Halevy if (unlikely(!p)) 2764c0eae66eSBenny Halevy goto out_overflow; 2765cccddf4fSBenny Halevy *type = be32_to_cpup(p); 27661da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 27673110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 27681da177e4SLinus Torvalds return -EIO; 27691da177e4SLinus Torvalds } 27701da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2771409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 27721da177e4SLinus Torvalds } 2773bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2774409924e4STrond Myklebust return ret; 2775c0eae66eSBenny Halevy out_overflow: 2776c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2777c0eae66eSBenny Halevy return -EIO; 27781da177e4SLinus Torvalds } 27791da177e4SLinus Torvalds 27801da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 27811da177e4SLinus Torvalds { 27828687b63aSAl Viro __be32 *p; 2783409924e4STrond Myklebust int ret = 0; 27841da177e4SLinus Torvalds 27851da177e4SLinus Torvalds *change = 0; 27861da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 27871da177e4SLinus Torvalds return -EIO; 27881da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2789c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2790c0eae66eSBenny Halevy if (unlikely(!p)) 2791c0eae66eSBenny Halevy goto out_overflow; 2792cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 27931da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2794409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 27951da177e4SLinus Torvalds } 27963110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 27971da177e4SLinus Torvalds (unsigned long long)*change); 2798409924e4STrond Myklebust return ret; 2799c0eae66eSBenny Halevy out_overflow: 2800c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2801c0eae66eSBenny Halevy return -EIO; 28021da177e4SLinus Torvalds } 28031da177e4SLinus Torvalds 28041da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 28051da177e4SLinus Torvalds { 28068687b63aSAl Viro __be32 *p; 2807409924e4STrond Myklebust int ret = 0; 28081da177e4SLinus Torvalds 28091da177e4SLinus Torvalds *size = 0; 28101da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 28111da177e4SLinus Torvalds return -EIO; 28121da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2813c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2814c0eae66eSBenny Halevy if (unlikely(!p)) 2815c0eae66eSBenny Halevy goto out_overflow; 2816cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 28171da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2818409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 28191da177e4SLinus Torvalds } 28203110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2821409924e4STrond Myklebust return ret; 2822c0eae66eSBenny Halevy out_overflow: 2823c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2824c0eae66eSBenny Halevy return -EIO; 28251da177e4SLinus Torvalds } 28261da177e4SLinus Torvalds 28271da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28281da177e4SLinus Torvalds { 28298687b63aSAl Viro __be32 *p; 28301da177e4SLinus Torvalds 28311da177e4SLinus Torvalds *res = 0; 28321da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 28331da177e4SLinus Torvalds return -EIO; 28341da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2835c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2836c0eae66eSBenny Halevy if (unlikely(!p)) 2837c0eae66eSBenny Halevy goto out_overflow; 2838cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28391da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 28401da177e4SLinus Torvalds } 28413110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 28421da177e4SLinus Torvalds return 0; 2843c0eae66eSBenny Halevy out_overflow: 2844c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2845c0eae66eSBenny Halevy return -EIO; 28461da177e4SLinus Torvalds } 28471da177e4SLinus Torvalds 28481da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28491da177e4SLinus Torvalds { 28508687b63aSAl Viro __be32 *p; 28511da177e4SLinus Torvalds 28521da177e4SLinus Torvalds *res = 0; 28531da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 28541da177e4SLinus Torvalds return -EIO; 28551da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2856c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2857c0eae66eSBenny Halevy if (unlikely(!p)) 2858c0eae66eSBenny Halevy goto out_overflow; 2859cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28601da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 28611da177e4SLinus Torvalds } 28623110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 28631da177e4SLinus Torvalds return 0; 2864c0eae66eSBenny Halevy out_overflow: 2865c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2866c0eae66eSBenny Halevy return -EIO; 28671da177e4SLinus Torvalds } 28681da177e4SLinus Torvalds 28698b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 28701da177e4SLinus Torvalds { 28718687b63aSAl Viro __be32 *p; 2872409924e4STrond Myklebust int ret = 0; 28731da177e4SLinus Torvalds 28741da177e4SLinus Torvalds fsid->major = 0; 28751da177e4SLinus Torvalds fsid->minor = 0; 28761da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 28771da177e4SLinus Torvalds return -EIO; 28781da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2879c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2880c0eae66eSBenny Halevy if (unlikely(!p)) 2881c0eae66eSBenny Halevy goto out_overflow; 28823ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2883cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 28841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2885409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 28861da177e4SLinus Torvalds } 28873110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 28881da177e4SLinus Torvalds (unsigned long long)fsid->major, 28891da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2890409924e4STrond Myklebust return ret; 2891c0eae66eSBenny Halevy out_overflow: 2892c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2893c0eae66eSBenny Halevy return -EIO; 28941da177e4SLinus Torvalds } 28951da177e4SLinus Torvalds 28961da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28971da177e4SLinus Torvalds { 28988687b63aSAl Viro __be32 *p; 28991da177e4SLinus Torvalds 29001da177e4SLinus Torvalds *res = 60; 29011da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 29021da177e4SLinus Torvalds return -EIO; 29031da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2904c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2905c0eae66eSBenny Halevy if (unlikely(!p)) 2906c0eae66eSBenny Halevy goto out_overflow; 2907cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29081da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 29091da177e4SLinus Torvalds } 29103110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 29111da177e4SLinus Torvalds return 0; 2912c0eae66eSBenny Halevy out_overflow: 2913c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2914c0eae66eSBenny Halevy return -EIO; 29151da177e4SLinus Torvalds } 29161da177e4SLinus Torvalds 2917ae42c70aSBryan Schumaker static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap) 2918ae42c70aSBryan Schumaker { 2919ae42c70aSBryan Schumaker __be32 *p; 2920ae42c70aSBryan Schumaker 2921ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 2922ae42c70aSBryan Schumaker return -EIO; 2923ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 2924ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 2925ae42c70aSBryan Schumaker if (unlikely(!p)) 2926ae42c70aSBryan Schumaker goto out_overflow; 2927ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 2928ae42c70aSBryan Schumaker } 2929ae42c70aSBryan Schumaker return 0; 2930ae42c70aSBryan Schumaker out_overflow: 2931ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 2932ae42c70aSBryan Schumaker return -EIO; 2933ae42c70aSBryan Schumaker } 2934ae42c70aSBryan Schumaker 2935ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 2936ae42c70aSBryan Schumaker { 2937ae42c70aSBryan Schumaker __be32 *p; 2938ae42c70aSBryan Schumaker int len; 2939ae42c70aSBryan Schumaker 29407ad07353STrond Myklebust if (fh != NULL) 2941ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 2942ae42c70aSBryan Schumaker 2943ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 2944ae42c70aSBryan Schumaker return -EIO; 2945ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 2946ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 2947ae42c70aSBryan Schumaker if (unlikely(!p)) 2948ae42c70aSBryan Schumaker goto out_overflow; 2949ae42c70aSBryan Schumaker len = be32_to_cpup(p); 2950ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 2951ae42c70aSBryan Schumaker return -EIO; 2952ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 2953ae42c70aSBryan Schumaker if (unlikely(!p)) 2954ae42c70aSBryan Schumaker goto out_overflow; 29557ad07353STrond Myklebust if (fh != NULL) { 2956ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 29577ad07353STrond Myklebust fh->size = len; 29587ad07353STrond Myklebust } 2959ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 2960ae42c70aSBryan Schumaker } 2961ae42c70aSBryan Schumaker return 0; 2962ae42c70aSBryan Schumaker out_overflow: 2963ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 2964ae42c70aSBryan Schumaker return -EIO; 2965ae42c70aSBryan Schumaker } 2966ae42c70aSBryan Schumaker 29671da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29681da177e4SLinus Torvalds { 29698687b63aSAl Viro __be32 *p; 29701da177e4SLinus Torvalds 29711da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 29721da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 29731da177e4SLinus Torvalds return -EIO; 29741da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2975c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2976c0eae66eSBenny Halevy if (unlikely(!p)) 2977c0eae66eSBenny Halevy goto out_overflow; 2978cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29791da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 29801da177e4SLinus Torvalds } 29813110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 29821da177e4SLinus Torvalds return 0; 2983c0eae66eSBenny Halevy out_overflow: 2984c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2985c0eae66eSBenny Halevy return -EIO; 29861da177e4SLinus Torvalds } 29871da177e4SLinus Torvalds 29881da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 29891da177e4SLinus Torvalds { 29908687b63aSAl Viro __be32 *p; 2991409924e4STrond Myklebust int ret = 0; 29921da177e4SLinus Torvalds 29931da177e4SLinus Torvalds *fileid = 0; 29941da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 29951da177e4SLinus Torvalds return -EIO; 29961da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2997c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2998c0eae66eSBenny Halevy if (unlikely(!p)) 2999c0eae66eSBenny Halevy goto out_overflow; 3000cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 30011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3002409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 30031da177e4SLinus Torvalds } 30043110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3005409924e4STrond Myklebust return ret; 3006c0eae66eSBenny Halevy out_overflow: 3007c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3008c0eae66eSBenny Halevy return -EIO; 30091da177e4SLinus Torvalds } 30101da177e4SLinus Torvalds 301199baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 301299baf625SManoj Naik { 30138687b63aSAl Viro __be32 *p; 3014409924e4STrond Myklebust int ret = 0; 301599baf625SManoj Naik 301699baf625SManoj Naik *fileid = 0; 301799baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 301899baf625SManoj Naik return -EIO; 301999baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3020c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3021c0eae66eSBenny Halevy if (unlikely(!p)) 3022c0eae66eSBenny Halevy goto out_overflow; 3023cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 302499baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 3025409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 302699baf625SManoj Naik } 30273110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3028409924e4STrond Myklebust return ret; 3029c0eae66eSBenny Halevy out_overflow: 3030c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3031c0eae66eSBenny Halevy return -EIO; 303299baf625SManoj Naik } 303399baf625SManoj Naik 30341da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30351da177e4SLinus Torvalds { 30368687b63aSAl Viro __be32 *p; 30371da177e4SLinus Torvalds int status = 0; 30381da177e4SLinus Torvalds 30391da177e4SLinus Torvalds *res = 0; 30401da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 30411da177e4SLinus Torvalds return -EIO; 30421da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3043c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3044c0eae66eSBenny Halevy if (unlikely(!p)) 3045c0eae66eSBenny Halevy goto out_overflow; 3046cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 30481da177e4SLinus Torvalds } 30493110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 30501da177e4SLinus Torvalds return status; 3051c0eae66eSBenny Halevy out_overflow: 3052c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3053c0eae66eSBenny Halevy return -EIO; 30541da177e4SLinus Torvalds } 30551da177e4SLinus Torvalds 30561da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30571da177e4SLinus Torvalds { 30588687b63aSAl Viro __be32 *p; 30591da177e4SLinus Torvalds int status = 0; 30601da177e4SLinus Torvalds 30611da177e4SLinus Torvalds *res = 0; 30621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 30631da177e4SLinus Torvalds return -EIO; 30641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3065c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3066c0eae66eSBenny Halevy if (unlikely(!p)) 3067c0eae66eSBenny Halevy goto out_overflow; 3068cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30691da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 30701da177e4SLinus Torvalds } 30713110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 30721da177e4SLinus Torvalds return status; 3073c0eae66eSBenny Halevy out_overflow: 3074c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3075c0eae66eSBenny Halevy return -EIO; 30761da177e4SLinus Torvalds } 30771da177e4SLinus Torvalds 30781da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30791da177e4SLinus Torvalds { 30808687b63aSAl Viro __be32 *p; 30811da177e4SLinus Torvalds int status = 0; 30821da177e4SLinus Torvalds 30831da177e4SLinus Torvalds *res = 0; 30841da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 30851da177e4SLinus Torvalds return -EIO; 30861da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3087c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3088c0eae66eSBenny Halevy if (unlikely(!p)) 3089c0eae66eSBenny Halevy goto out_overflow; 3090cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30911da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 30921da177e4SLinus Torvalds } 30933110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 30941da177e4SLinus Torvalds return status; 3095c0eae66eSBenny Halevy out_overflow: 3096c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3097c0eae66eSBenny Halevy return -EIO; 30981da177e4SLinus Torvalds } 30991da177e4SLinus Torvalds 31007aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 31017aaa0b3bSManoj Naik { 3102464ad6b1SChuck Lever u32 n; 31038687b63aSAl Viro __be32 *p; 31047aaa0b3bSManoj Naik int status = 0; 31057aaa0b3bSManoj Naik 3106c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3107c0eae66eSBenny Halevy if (unlikely(!p)) 3108c0eae66eSBenny Halevy goto out_overflow; 3109cccddf4fSBenny Halevy n = be32_to_cpup(p); 311033a43f28SAndy Adamson if (n == 0) 311133a43f28SAndy Adamson goto root_path; 31127aaa0b3bSManoj Naik dprintk("path "); 31137aaa0b3bSManoj Naik path->ncomponents = 0; 31147aaa0b3bSManoj Naik while (path->ncomponents < n) { 31157aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 31167aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 31177aaa0b3bSManoj Naik if (unlikely(status != 0)) 31187aaa0b3bSManoj Naik goto out_eio; 31197aaa0b3bSManoj Naik if (path->ncomponents != n) 31207aaa0b3bSManoj Naik dprintk("/"); 31217aaa0b3bSManoj Naik dprintk("%s", component->data); 31227aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 31237aaa0b3bSManoj Naik path->ncomponents++; 31247aaa0b3bSManoj Naik else { 31257aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 31267aaa0b3bSManoj Naik goto out_eio; 31277aaa0b3bSManoj Naik } 31287aaa0b3bSManoj Naik } 31297aaa0b3bSManoj Naik out: 31307aaa0b3bSManoj Naik dprintk("\n"); 31317aaa0b3bSManoj Naik return status; 313233a43f28SAndy Adamson root_path: 313333a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 313433a43f28SAndy Adamson path->ncomponents = 1; 313533a43f28SAndy Adamson path->components[0].len=0; 313633a43f28SAndy Adamson path->components[0].data=NULL; 313733a43f28SAndy Adamson dprintk("path /\n"); 313833a43f28SAndy Adamson goto out; 31397aaa0b3bSManoj Naik out_eio: 31407aaa0b3bSManoj Naik dprintk(" status %d", status); 31417aaa0b3bSManoj Naik status = -EIO; 31427aaa0b3bSManoj Naik goto out; 3143c0eae66eSBenny Halevy out_overflow: 3144c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3145c0eae66eSBenny Halevy return -EIO; 31467aaa0b3bSManoj Naik } 31477aaa0b3bSManoj Naik 31487aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3149683b57b4STrond Myklebust { 3150683b57b4STrond Myklebust int n; 31518687b63aSAl Viro __be32 *p; 3152683b57b4STrond Myklebust int status = -EIO; 3153683b57b4STrond Myklebust 3154683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3155683b57b4STrond Myklebust goto out; 3156683b57b4STrond Myklebust status = 0; 3157683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3158683b57b4STrond Myklebust goto out; 31593110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 31607aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3161683b57b4STrond Myklebust if (unlikely(status != 0)) 3162683b57b4STrond Myklebust goto out; 3163c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3164c0eae66eSBenny Halevy if (unlikely(!p)) 3165c0eae66eSBenny Halevy goto out_overflow; 3166cccddf4fSBenny Halevy n = be32_to_cpup(p); 3167683b57b4STrond Myklebust if (n <= 0) 3168683b57b4STrond Myklebust goto out_eio; 3169683b57b4STrond Myklebust res->nlocations = 0; 3170683b57b4STrond Myklebust while (res->nlocations < n) { 3171464ad6b1SChuck Lever u32 m; 31727aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3173683b57b4STrond Myklebust 3174c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3175c0eae66eSBenny Halevy if (unlikely(!p)) 3176c0eae66eSBenny Halevy goto out_overflow; 3177cccddf4fSBenny Halevy m = be32_to_cpup(p); 31787aaa0b3bSManoj Naik 31797aaa0b3bSManoj Naik loc->nservers = 0; 31803110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 31817aaa0b3bSManoj Naik while (loc->nservers < m) { 31827aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 31837aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3184683b57b4STrond Myklebust if (unlikely(status != 0)) 3185683b57b4STrond Myklebust goto out_eio; 31867aaa0b3bSManoj Naik dprintk("%s ", server->data); 31877aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 31887aaa0b3bSManoj Naik loc->nservers++; 31897aaa0b3bSManoj Naik else { 3190464ad6b1SChuck Lever unsigned int i; 3191464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3192464ad6b1SChuck Lever "returned for location %u\n", 31933110ff80SHarvey Harrison __func__, 3194464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3195464ad6b1SChuck Lever m, res->nlocations); 31967aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 31972e42c3e2STrond Myklebust unsigned int len; 31987aaa0b3bSManoj Naik char *data; 31997aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3200683b57b4STrond Myklebust if (unlikely(status != 0)) 3201683b57b4STrond Myklebust goto out_eio; 32027aaa0b3bSManoj Naik } 32037aaa0b3bSManoj Naik } 32047aaa0b3bSManoj Naik } 32057aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 32067aaa0b3bSManoj Naik if (unlikely(status != 0)) 32077aaa0b3bSManoj Naik goto out_eio; 32087aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3209683b57b4STrond Myklebust res->nlocations++; 3210683b57b4STrond Myklebust } 3211409924e4STrond Myklebust if (res->nlocations != 0) 3212409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3213683b57b4STrond Myklebust out: 32143110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3215683b57b4STrond Myklebust return status; 3216c0eae66eSBenny Halevy out_overflow: 3217c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3218683b57b4STrond Myklebust out_eio: 3219683b57b4STrond Myklebust status = -EIO; 3220683b57b4STrond Myklebust goto out; 3221683b57b4STrond Myklebust } 3222683b57b4STrond Myklebust 32231da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 32241da177e4SLinus Torvalds { 32258687b63aSAl Viro __be32 *p; 32261da177e4SLinus Torvalds int status = 0; 32271da177e4SLinus Torvalds 32281da177e4SLinus Torvalds *res = 0; 32291da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 32301da177e4SLinus Torvalds return -EIO; 32311da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3232c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3233c0eae66eSBenny Halevy if (unlikely(!p)) 3234c0eae66eSBenny Halevy goto out_overflow; 3235cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 32361da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 32371da177e4SLinus Torvalds } 32383110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 32391da177e4SLinus Torvalds return status; 3240c0eae66eSBenny Halevy out_overflow: 3241c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3242c0eae66eSBenny Halevy return -EIO; 32431da177e4SLinus Torvalds } 32441da177e4SLinus Torvalds 32451da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 32461da177e4SLinus Torvalds { 32478687b63aSAl Viro __be32 *p; 32481da177e4SLinus Torvalds int status = 0; 32491da177e4SLinus Torvalds 32501da177e4SLinus Torvalds *maxlink = 1; 32511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 32521da177e4SLinus Torvalds return -EIO; 32531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3254c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3255c0eae66eSBenny Halevy if (unlikely(!p)) 3256c0eae66eSBenny Halevy goto out_overflow; 3257cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 32581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 32591da177e4SLinus Torvalds } 32603110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 32611da177e4SLinus Torvalds return status; 3262c0eae66eSBenny Halevy out_overflow: 3263c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3264c0eae66eSBenny Halevy return -EIO; 32651da177e4SLinus Torvalds } 32661da177e4SLinus Torvalds 32671da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 32681da177e4SLinus Torvalds { 32698687b63aSAl Viro __be32 *p; 32701da177e4SLinus Torvalds int status = 0; 32711da177e4SLinus Torvalds 32721da177e4SLinus Torvalds *maxname = 1024; 32731da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 32741da177e4SLinus Torvalds return -EIO; 32751da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3276c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3277c0eae66eSBenny Halevy if (unlikely(!p)) 3278c0eae66eSBenny Halevy goto out_overflow; 3279cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 32801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 32811da177e4SLinus Torvalds } 32823110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 32831da177e4SLinus Torvalds return status; 3284c0eae66eSBenny Halevy out_overflow: 3285c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3286c0eae66eSBenny Halevy return -EIO; 32871da177e4SLinus Torvalds } 32881da177e4SLinus Torvalds 32891da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32901da177e4SLinus Torvalds { 32918687b63aSAl Viro __be32 *p; 32921da177e4SLinus Torvalds int status = 0; 32931da177e4SLinus Torvalds 32941da177e4SLinus Torvalds *res = 1024; 32951da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 32961da177e4SLinus Torvalds return -EIO; 32971da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 32981da177e4SLinus Torvalds uint64_t maxread; 3299c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3300c0eae66eSBenny Halevy if (unlikely(!p)) 3301c0eae66eSBenny Halevy goto out_overflow; 3302cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 33031da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 33041da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 33051da177e4SLinus Torvalds *res = (uint32_t)maxread; 33061da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 33071da177e4SLinus Torvalds } 33083110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 33091da177e4SLinus Torvalds return status; 3310c0eae66eSBenny Halevy out_overflow: 3311c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3312c0eae66eSBenny Halevy return -EIO; 33131da177e4SLinus Torvalds } 33141da177e4SLinus Torvalds 33151da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33161da177e4SLinus Torvalds { 33178687b63aSAl Viro __be32 *p; 33181da177e4SLinus Torvalds int status = 0; 33191da177e4SLinus Torvalds 33201da177e4SLinus Torvalds *res = 1024; 33211da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 33221da177e4SLinus Torvalds return -EIO; 33231da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 33241da177e4SLinus Torvalds uint64_t maxwrite; 3325c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3326c0eae66eSBenny Halevy if (unlikely(!p)) 3327c0eae66eSBenny Halevy goto out_overflow; 3328cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 33291da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 33301da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 33311da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 33321da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 33331da177e4SLinus Torvalds } 33343110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 33351da177e4SLinus Torvalds return status; 3336c0eae66eSBenny Halevy out_overflow: 3337c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3338c0eae66eSBenny Halevy return -EIO; 33391da177e4SLinus Torvalds } 33401da177e4SLinus Torvalds 3341bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 33421da177e4SLinus Torvalds { 3343bca79478STrond Myklebust uint32_t tmp; 33448687b63aSAl Viro __be32 *p; 3345409924e4STrond Myklebust int ret = 0; 33461da177e4SLinus Torvalds 33471da177e4SLinus Torvalds *mode = 0; 33481da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 33491da177e4SLinus Torvalds return -EIO; 33501da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3351c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3352c0eae66eSBenny Halevy if (unlikely(!p)) 3353c0eae66eSBenny Halevy goto out_overflow; 3354cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3355bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 33561da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3357409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 33581da177e4SLinus Torvalds } 33593110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3360409924e4STrond Myklebust return ret; 3361c0eae66eSBenny Halevy out_overflow: 3362c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3363c0eae66eSBenny Halevy return -EIO; 33641da177e4SLinus Torvalds } 33651da177e4SLinus Torvalds 33661da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 33671da177e4SLinus Torvalds { 33688687b63aSAl Viro __be32 *p; 3369409924e4STrond Myklebust int ret = 0; 33701da177e4SLinus Torvalds 33711da177e4SLinus Torvalds *nlink = 1; 33721da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 33731da177e4SLinus Torvalds return -EIO; 33741da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3375c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3376c0eae66eSBenny Halevy if (unlikely(!p)) 3377c0eae66eSBenny Halevy goto out_overflow; 3378cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 33791da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3380409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 33811da177e4SLinus Torvalds } 33823110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3383409924e4STrond Myklebust return ret; 3384c0eae66eSBenny Halevy out_overflow: 3385c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3386c0eae66eSBenny Halevy return -EIO; 33871da177e4SLinus Torvalds } 33881da177e4SLinus Torvalds 338980e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 339080e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *uid, int may_sleep) 33911da177e4SLinus Torvalds { 33928687b63aSAl Viro uint32_t len; 33938687b63aSAl Viro __be32 *p; 3394409924e4STrond Myklebust int ret = 0; 33951da177e4SLinus Torvalds 33961da177e4SLinus Torvalds *uid = -2; 33971da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 33981da177e4SLinus Torvalds return -EIO; 33991da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3400c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3401c0eae66eSBenny Halevy if (unlikely(!p)) 3402c0eae66eSBenny Halevy goto out_overflow; 3403cccddf4fSBenny Halevy len = be32_to_cpup(p); 3404c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3405c0eae66eSBenny Halevy if (unlikely(!p)) 3406c0eae66eSBenny Halevy goto out_overflow; 340780e52aceSTrond Myklebust if (!may_sleep) { 340880e52aceSTrond Myklebust /* do nothing */ 340980e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3410409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3411409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3412409924e4STrond Myklebust else 34131da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 34143110ff80SHarvey Harrison __func__); 34151da177e4SLinus Torvalds } else 3416fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 34173110ff80SHarvey Harrison __func__, len); 34181da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 34191da177e4SLinus Torvalds } 34203110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3421409924e4STrond Myklebust return ret; 3422c0eae66eSBenny Halevy out_overflow: 3423c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3424c0eae66eSBenny Halevy return -EIO; 34251da177e4SLinus Torvalds } 34261da177e4SLinus Torvalds 342780e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 342880e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *gid, int may_sleep) 34291da177e4SLinus Torvalds { 34308687b63aSAl Viro uint32_t len; 34318687b63aSAl Viro __be32 *p; 3432409924e4STrond Myklebust int ret = 0; 34331da177e4SLinus Torvalds 34341da177e4SLinus Torvalds *gid = -2; 34351da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 34361da177e4SLinus Torvalds return -EIO; 34371da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3438c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3439c0eae66eSBenny Halevy if (unlikely(!p)) 3440c0eae66eSBenny Halevy goto out_overflow; 3441cccddf4fSBenny Halevy len = be32_to_cpup(p); 3442c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3443c0eae66eSBenny Halevy if (unlikely(!p)) 3444c0eae66eSBenny Halevy goto out_overflow; 344580e52aceSTrond Myklebust if (!may_sleep) { 344680e52aceSTrond Myklebust /* do nothing */ 344780e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3448409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3449409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3450409924e4STrond Myklebust else 34511da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 34523110ff80SHarvey Harrison __func__); 34531da177e4SLinus Torvalds } else 3454fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 34553110ff80SHarvey Harrison __func__, len); 34561da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 34571da177e4SLinus Torvalds } 34583110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3459409924e4STrond Myklebust return ret; 3460c0eae66eSBenny Halevy out_overflow: 3461c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3462c0eae66eSBenny Halevy return -EIO; 34631da177e4SLinus Torvalds } 34641da177e4SLinus Torvalds 34651da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 34661da177e4SLinus Torvalds { 34678687b63aSAl Viro uint32_t major = 0, minor = 0; 34688687b63aSAl Viro __be32 *p; 3469409924e4STrond Myklebust int ret = 0; 34701da177e4SLinus Torvalds 34711da177e4SLinus Torvalds *rdev = MKDEV(0,0); 34721da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 34731da177e4SLinus Torvalds return -EIO; 34741da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 34751da177e4SLinus Torvalds dev_t tmp; 34761da177e4SLinus Torvalds 3477c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3478c0eae66eSBenny Halevy if (unlikely(!p)) 3479c0eae66eSBenny Halevy goto out_overflow; 34806f723f77SBenny Halevy major = be32_to_cpup(p++); 3481cccddf4fSBenny Halevy minor = be32_to_cpup(p); 34821da177e4SLinus Torvalds tmp = MKDEV(major, minor); 34831da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 34841da177e4SLinus Torvalds *rdev = tmp; 34851da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3486409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 34871da177e4SLinus Torvalds } 34883110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3489409924e4STrond Myklebust return ret; 3490c0eae66eSBenny Halevy out_overflow: 3491c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3492c0eae66eSBenny Halevy return -EIO; 34931da177e4SLinus Torvalds } 34941da177e4SLinus Torvalds 34951da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34961da177e4SLinus Torvalds { 34978687b63aSAl Viro __be32 *p; 34981da177e4SLinus Torvalds int status = 0; 34991da177e4SLinus Torvalds 35001da177e4SLinus Torvalds *res = 0; 35011da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 35021da177e4SLinus Torvalds return -EIO; 35031da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3504c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3505c0eae66eSBenny Halevy if (unlikely(!p)) 3506c0eae66eSBenny Halevy goto out_overflow; 3507cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35081da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 35091da177e4SLinus Torvalds } 35103110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 35111da177e4SLinus Torvalds return status; 3512c0eae66eSBenny Halevy out_overflow: 3513c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3514c0eae66eSBenny Halevy return -EIO; 35151da177e4SLinus Torvalds } 35161da177e4SLinus Torvalds 35171da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35181da177e4SLinus Torvalds { 35198687b63aSAl Viro __be32 *p; 35201da177e4SLinus Torvalds int status = 0; 35211da177e4SLinus Torvalds 35221da177e4SLinus Torvalds *res = 0; 35231da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 35241da177e4SLinus Torvalds return -EIO; 35251da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3526c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3527c0eae66eSBenny Halevy if (unlikely(!p)) 3528c0eae66eSBenny Halevy goto out_overflow; 3529cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35301da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 35311da177e4SLinus Torvalds } 35323110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 35331da177e4SLinus Torvalds return status; 3534c0eae66eSBenny Halevy out_overflow: 3535c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3536c0eae66eSBenny Halevy return -EIO; 35371da177e4SLinus Torvalds } 35381da177e4SLinus Torvalds 35391da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35401da177e4SLinus Torvalds { 35418687b63aSAl Viro __be32 *p; 35421da177e4SLinus Torvalds int status = 0; 35431da177e4SLinus Torvalds 35441da177e4SLinus Torvalds *res = 0; 35451da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 35461da177e4SLinus Torvalds return -EIO; 35471da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3548c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3549c0eae66eSBenny Halevy if (unlikely(!p)) 3550c0eae66eSBenny Halevy goto out_overflow; 3551cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35521da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 35531da177e4SLinus Torvalds } 35543110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 35551da177e4SLinus Torvalds return status; 3556c0eae66eSBenny Halevy out_overflow: 3557c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3558c0eae66eSBenny Halevy return -EIO; 35591da177e4SLinus Torvalds } 35601da177e4SLinus Torvalds 35611da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 35621da177e4SLinus Torvalds { 35638687b63aSAl Viro __be32 *p; 3564409924e4STrond Myklebust int ret = 0; 35651da177e4SLinus Torvalds 35661da177e4SLinus Torvalds *used = 0; 35671da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 35681da177e4SLinus Torvalds return -EIO; 35691da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3570c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3571c0eae66eSBenny Halevy if (unlikely(!p)) 3572c0eae66eSBenny Halevy goto out_overflow; 3573cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 35741da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3575409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 35761da177e4SLinus Torvalds } 35773110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 35781da177e4SLinus Torvalds (unsigned long long)*used); 3579409924e4STrond Myklebust return ret; 3580c0eae66eSBenny Halevy out_overflow: 3581c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3582c0eae66eSBenny Halevy return -EIO; 35831da177e4SLinus Torvalds } 35841da177e4SLinus Torvalds 35851da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 35861da177e4SLinus Torvalds { 35878687b63aSAl Viro __be32 *p; 35881da177e4SLinus Torvalds uint64_t sec; 35891da177e4SLinus Torvalds uint32_t nsec; 35901da177e4SLinus Torvalds 3591c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3592c0eae66eSBenny Halevy if (unlikely(!p)) 3593c0eae66eSBenny Halevy goto out_overflow; 35943ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3595cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 35961da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 35971da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 35981da177e4SLinus Torvalds return 0; 3599c0eae66eSBenny Halevy out_overflow: 3600c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3601c0eae66eSBenny Halevy return -EIO; 36021da177e4SLinus Torvalds } 36031da177e4SLinus Torvalds 36041da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36051da177e4SLinus Torvalds { 36061da177e4SLinus Torvalds int status = 0; 36071da177e4SLinus Torvalds 36081da177e4SLinus Torvalds time->tv_sec = 0; 36091da177e4SLinus Torvalds time->tv_nsec = 0; 36101da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 36111da177e4SLinus Torvalds return -EIO; 36121da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 36131da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3614409924e4STrond Myklebust if (status == 0) 3615409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 36161da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 36171da177e4SLinus Torvalds } 36183110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 36191da177e4SLinus Torvalds return status; 36201da177e4SLinus Torvalds } 36211da177e4SLinus Torvalds 36221da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36231da177e4SLinus Torvalds { 36241da177e4SLinus Torvalds int status = 0; 36251da177e4SLinus Torvalds 36261da177e4SLinus Torvalds time->tv_sec = 0; 36271da177e4SLinus Torvalds time->tv_nsec = 0; 36281da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 36291da177e4SLinus Torvalds return -EIO; 36301da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 36311da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3632409924e4STrond Myklebust if (status == 0) 3633409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 36341da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 36351da177e4SLinus Torvalds } 36363110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 36371da177e4SLinus Torvalds return status; 36381da177e4SLinus Torvalds } 36391da177e4SLinus Torvalds 364055b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 364155b6e774SRicardo Labiaga struct timespec *time) 364255b6e774SRicardo Labiaga { 364355b6e774SRicardo Labiaga int status = 0; 364455b6e774SRicardo Labiaga 364555b6e774SRicardo Labiaga time->tv_sec = 0; 364655b6e774SRicardo Labiaga time->tv_nsec = 0; 364755b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 364855b6e774SRicardo Labiaga return -EIO; 364955b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 365055b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 365155b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 365255b6e774SRicardo Labiaga } 365355b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 365455b6e774SRicardo Labiaga (long)time->tv_nsec); 365555b6e774SRicardo Labiaga return status; 365655b6e774SRicardo Labiaga } 365755b6e774SRicardo Labiaga 36581da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36591da177e4SLinus Torvalds { 36601da177e4SLinus Torvalds int status = 0; 36611da177e4SLinus Torvalds 36621da177e4SLinus Torvalds time->tv_sec = 0; 36631da177e4SLinus Torvalds time->tv_nsec = 0; 36641da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 36651da177e4SLinus Torvalds return -EIO; 36661da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 36671da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3668409924e4STrond Myklebust if (status == 0) 3669409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 36701da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 36711da177e4SLinus Torvalds } 36723110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 36731da177e4SLinus Torvalds return status; 36741da177e4SLinus Torvalds } 36751da177e4SLinus Torvalds 36768687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 36771da177e4SLinus Torvalds { 36781da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 36791da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 36801da177e4SLinus Torvalds 36811da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3682fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3683fe82a183SChuck Lever "%u %c %u\n", 36843110ff80SHarvey Harrison __func__, 36851da177e4SLinus Torvalds attrwords << 2, 36861da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 36871da177e4SLinus Torvalds nwords << 2); 36881da177e4SLinus Torvalds return -EIO; 36891da177e4SLinus Torvalds } 36901da177e4SLinus Torvalds return 0; 36911da177e4SLinus Torvalds } 36921da177e4SLinus Torvalds 36931da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36941da177e4SLinus Torvalds { 36958687b63aSAl Viro __be32 *p; 36961da177e4SLinus Torvalds 3697c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3698c0eae66eSBenny Halevy if (unlikely(!p)) 3699c0eae66eSBenny Halevy goto out_overflow; 37006f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 37013ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3702cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 37031da177e4SLinus Torvalds return 0; 3704c0eae66eSBenny Halevy out_overflow: 3705c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3706c0eae66eSBenny Halevy return -EIO; 37071da177e4SLinus Torvalds } 37081da177e4SLinus Torvalds 37091da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 37101da177e4SLinus Torvalds { 37118687b63aSAl Viro __be32 *p; 37121da177e4SLinus Torvalds uint32_t supp, acc; 37131da177e4SLinus Torvalds int status; 37141da177e4SLinus Torvalds 37151da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 37161da177e4SLinus Torvalds if (status) 37171da177e4SLinus Torvalds return status; 3718c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3719c0eae66eSBenny Halevy if (unlikely(!p)) 3720c0eae66eSBenny Halevy goto out_overflow; 37216f723f77SBenny Halevy supp = be32_to_cpup(p++); 3722cccddf4fSBenny Halevy acc = be32_to_cpup(p); 37231da177e4SLinus Torvalds access->supported = supp; 37241da177e4SLinus Torvalds access->access = acc; 37251da177e4SLinus Torvalds return 0; 3726c0eae66eSBenny Halevy out_overflow: 3727c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3728c0eae66eSBenny Halevy return -EIO; 37291da177e4SLinus Torvalds } 37301da177e4SLinus Torvalds 373107d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 37321da177e4SLinus Torvalds { 37338687b63aSAl Viro __be32 *p; 373407d30434SBenny Halevy 373507d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 373607d30434SBenny Halevy if (likely(p)) { 373707d30434SBenny Halevy memcpy(buf, p, len); 373807d30434SBenny Halevy return 0; 373907d30434SBenny Halevy } 374007d30434SBenny Halevy print_overflow_msg(__func__, xdr); 374107d30434SBenny Halevy return -EIO; 374207d30434SBenny Halevy } 374307d30434SBenny Halevy 374407d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 374507d30434SBenny Halevy { 374607d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 37471da177e4SLinus Torvalds } 37481da177e4SLinus Torvalds 37491da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 37501da177e4SLinus Torvalds { 37511da177e4SLinus Torvalds int status; 37521da177e4SLinus Torvalds 37531da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3754c1d51931STrond Myklebust if (status != -EIO) 3755c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 375607d30434SBenny Halevy if (!status) 375707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 37581da177e4SLinus Torvalds return status; 37591da177e4SLinus Torvalds } 37601da177e4SLinus Torvalds 3761db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3762db942bbdSBenny Halevy { 3763db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 37641da177e4SLinus Torvalds } 37651da177e4SLinus Torvalds 37661da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 37671da177e4SLinus Torvalds { 37681da177e4SLinus Torvalds int status; 37691da177e4SLinus Torvalds 37701da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3771db942bbdSBenny Halevy if (!status) 3772db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 37731da177e4SLinus Torvalds return status; 37741da177e4SLinus Torvalds } 37751da177e4SLinus Torvalds 37761da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 37771da177e4SLinus Torvalds { 37788687b63aSAl Viro __be32 *p; 37791da177e4SLinus Torvalds uint32_t bmlen; 37801da177e4SLinus Torvalds int status; 37811da177e4SLinus Torvalds 37821da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 37831da177e4SLinus Torvalds if (status) 37841da177e4SLinus Torvalds return status; 37851da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 37861da177e4SLinus Torvalds return status; 3787c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3788c0eae66eSBenny Halevy if (unlikely(!p)) 3789c0eae66eSBenny Halevy goto out_overflow; 3790cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3791c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3792c0eae66eSBenny Halevy if (likely(p)) 37931da177e4SLinus Torvalds return 0; 3794c0eae66eSBenny Halevy out_overflow: 3795c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3796c0eae66eSBenny Halevy return -EIO; 37971da177e4SLinus Torvalds } 37981da177e4SLinus Torvalds 37991da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 38001da177e4SLinus Torvalds { 38018687b63aSAl Viro __be32 *savep; 38026c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 38031da177e4SLinus Torvalds int status; 38041da177e4SLinus Torvalds 38051da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38061da177e4SLinus Torvalds goto xdr_error; 38071da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38081da177e4SLinus Torvalds goto xdr_error; 38091da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38101da177e4SLinus Torvalds goto xdr_error; 38111da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 38121da177e4SLinus Torvalds goto xdr_error; 38131da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 38141da177e4SLinus Torvalds goto xdr_error; 38151da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 38161da177e4SLinus Torvalds goto xdr_error; 38171da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 38181da177e4SLinus Torvalds goto xdr_error; 38191da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38201da177e4SLinus Torvalds xdr_error: 38213110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38221da177e4SLinus Torvalds return status; 38231da177e4SLinus Torvalds } 38241da177e4SLinus Torvalds 38251da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 38261da177e4SLinus Torvalds { 38278687b63aSAl Viro __be32 *savep; 38286c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 38291da177e4SLinus Torvalds int status; 38301da177e4SLinus Torvalds 38311da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38321da177e4SLinus Torvalds goto xdr_error; 38331da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38341da177e4SLinus Torvalds goto xdr_error; 38351da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38361da177e4SLinus Torvalds goto xdr_error; 38371da177e4SLinus Torvalds 38381da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 38391da177e4SLinus Torvalds goto xdr_error; 38401da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 38411da177e4SLinus Torvalds goto xdr_error; 38421da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 38431da177e4SLinus Torvalds goto xdr_error; 38441da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 38451da177e4SLinus Torvalds goto xdr_error; 38461da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 38471da177e4SLinus Torvalds goto xdr_error; 38481da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 38491da177e4SLinus Torvalds goto xdr_error; 38501da177e4SLinus Torvalds 38511da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38521da177e4SLinus Torvalds xdr_error: 38533110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38541da177e4SLinus Torvalds return status; 38551da177e4SLinus Torvalds } 38561da177e4SLinus Torvalds 38571da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 38581da177e4SLinus Torvalds { 38598687b63aSAl Viro __be32 *savep; 38606c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 38611da177e4SLinus Torvalds int status; 38621da177e4SLinus Torvalds 38631da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38641da177e4SLinus Torvalds goto xdr_error; 38651da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38661da177e4SLinus Torvalds goto xdr_error; 38671da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38681da177e4SLinus Torvalds goto xdr_error; 38691da177e4SLinus Torvalds 38701da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 38711da177e4SLinus Torvalds goto xdr_error; 38721da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 38731da177e4SLinus Torvalds goto xdr_error; 38741da177e4SLinus Torvalds 38751da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38761da177e4SLinus Torvalds xdr_error: 38773110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38781da177e4SLinus Torvalds return status; 38791da177e4SLinus Torvalds } 38801da177e4SLinus Torvalds 3881ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 3882ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 388380e52aceSTrond Myklebust const struct nfs_server *server, int may_sleep) 38841da177e4SLinus Torvalds { 3885bca79478STrond Myklebust int status; 3886bca79478STrond Myklebust umode_t fmode = 0; 388799baf625SManoj Naik uint64_t fileid; 3888ae42c70aSBryan Schumaker uint32_t type; 38891da177e4SLinus Torvalds 3890f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3891f26c7a78STrond Myklebust if (status < 0) 38921da177e4SLinus Torvalds goto xdr_error; 3893409924e4STrond Myklebust fattr->mode = 0; 3894409924e4STrond Myklebust if (status != 0) { 3895409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3896409924e4STrond Myklebust fattr->valid |= status; 3897409924e4STrond Myklebust } 38981da177e4SLinus Torvalds 3899f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3900f26c7a78STrond Myklebust if (status < 0) 39011da177e4SLinus Torvalds goto xdr_error; 3902409924e4STrond Myklebust fattr->valid |= status; 3903f26c7a78STrond Myklebust 3904f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3905f26c7a78STrond Myklebust if (status < 0) 39061da177e4SLinus Torvalds goto xdr_error; 3907409924e4STrond Myklebust fattr->valid |= status; 3908f26c7a78STrond Myklebust 3909f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3910f26c7a78STrond Myklebust if (status < 0) 39111da177e4SLinus Torvalds goto xdr_error; 3912409924e4STrond Myklebust fattr->valid |= status; 3913f26c7a78STrond Myklebust 3914ae42c70aSBryan Schumaker status = decode_attr_error(xdr, bitmap); 3915ae42c70aSBryan Schumaker if (status < 0) 3916ae42c70aSBryan Schumaker goto xdr_error; 3917ae42c70aSBryan Schumaker 3918ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 3919ae42c70aSBryan Schumaker if (status < 0) 3920ae42c70aSBryan Schumaker goto xdr_error; 3921ae42c70aSBryan Schumaker 3922f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3923f26c7a78STrond Myklebust if (status < 0) 39241da177e4SLinus Torvalds goto xdr_error; 3925409924e4STrond Myklebust fattr->valid |= status; 3926f26c7a78STrond Myklebust 3927f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 39287aaa0b3bSManoj Naik struct nfs4_fs_locations, 3929f26c7a78STrond Myklebust fattr)); 3930f26c7a78STrond Myklebust if (status < 0) 3931683b57b4STrond Myklebust goto xdr_error; 3932409924e4STrond Myklebust fattr->valid |= status; 3933f26c7a78STrond Myklebust 3934f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3935f26c7a78STrond Myklebust if (status < 0) 39361da177e4SLinus Torvalds goto xdr_error; 3937409924e4STrond Myklebust if (status != 0) { 39381da177e4SLinus Torvalds fattr->mode |= fmode; 3939409924e4STrond Myklebust fattr->valid |= status; 3940409924e4STrond Myklebust } 3941f26c7a78STrond Myklebust 3942f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3943f26c7a78STrond Myklebust if (status < 0) 39441da177e4SLinus Torvalds goto xdr_error; 3945409924e4STrond Myklebust fattr->valid |= status; 3946f26c7a78STrond Myklebust 394780e52aceSTrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, 394880e52aceSTrond Myklebust &fattr->uid, may_sleep); 3949f26c7a78STrond Myklebust if (status < 0) 39501da177e4SLinus Torvalds goto xdr_error; 3951409924e4STrond Myklebust fattr->valid |= status; 3952f26c7a78STrond Myklebust 395380e52aceSTrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, 395480e52aceSTrond Myklebust &fattr->gid, may_sleep); 3955f26c7a78STrond Myklebust if (status < 0) 39561da177e4SLinus Torvalds goto xdr_error; 3957409924e4STrond Myklebust fattr->valid |= status; 3958f26c7a78STrond Myklebust 3959f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3960f26c7a78STrond Myklebust if (status < 0) 39611da177e4SLinus Torvalds goto xdr_error; 3962409924e4STrond Myklebust fattr->valid |= status; 3963f26c7a78STrond Myklebust 3964f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3965f26c7a78STrond Myklebust if (status < 0) 39661da177e4SLinus Torvalds goto xdr_error; 3967409924e4STrond Myklebust fattr->valid |= status; 3968f26c7a78STrond Myklebust 3969f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3970f26c7a78STrond Myklebust if (status < 0) 39711da177e4SLinus Torvalds goto xdr_error; 3972409924e4STrond Myklebust fattr->valid |= status; 3973f26c7a78STrond Myklebust 3974f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3975f26c7a78STrond Myklebust if (status < 0) 39761da177e4SLinus Torvalds goto xdr_error; 3977409924e4STrond Myklebust fattr->valid |= status; 3978f26c7a78STrond Myklebust 3979f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3980f26c7a78STrond Myklebust if (status < 0) 39811da177e4SLinus Torvalds goto xdr_error; 3982409924e4STrond Myklebust fattr->valid |= status; 3983f26c7a78STrond Myklebust 3984f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3985f26c7a78STrond Myklebust if (status < 0) 398699baf625SManoj Naik goto xdr_error; 39873201f3ddSTrond Myklebust if (status != 0 && !(fattr->valid & status)) { 398899baf625SManoj Naik fattr->fileid = fileid; 3989409924e4STrond Myklebust fattr->valid |= status; 3990409924e4STrond Myklebust } 3991f26c7a78STrond Myklebust 3992ae42c70aSBryan Schumaker xdr_error: 3993ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 3994ae42c70aSBryan Schumaker return status; 3995ae42c70aSBryan Schumaker } 3996ae42c70aSBryan Schumaker 3997ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 3998ae42c70aSBryan Schumaker struct nfs_fh *fh, const struct nfs_server *server, int may_sleep) 3999ae42c70aSBryan Schumaker { 4000ae42c70aSBryan Schumaker __be32 *savep; 4001ae42c70aSBryan Schumaker uint32_t attrlen, 4002ae42c70aSBryan Schumaker bitmap[2] = {0}; 4003ae42c70aSBryan Schumaker int status; 4004ae42c70aSBryan Schumaker 4005ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4006ae42c70aSBryan Schumaker if (status < 0) 4007ae42c70aSBryan Schumaker goto xdr_error; 4008ae42c70aSBryan Schumaker 4009ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4010ae42c70aSBryan Schumaker if (status < 0) 4011ae42c70aSBryan Schumaker goto xdr_error; 4012ae42c70aSBryan Schumaker 4013ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4014ae42c70aSBryan Schumaker if (status < 0) 4015ae42c70aSBryan Schumaker goto xdr_error; 4016ae42c70aSBryan Schumaker 4017ae42c70aSBryan Schumaker status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep); 4018ae42c70aSBryan Schumaker if (status < 0) 4019ae42c70aSBryan Schumaker goto xdr_error; 4020ae42c70aSBryan Schumaker 4021f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 40221da177e4SLinus Torvalds xdr_error: 40233110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 40241da177e4SLinus Torvalds return status; 40251da177e4SLinus Torvalds } 40261da177e4SLinus Torvalds 4027ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4028ae42c70aSBryan Schumaker const struct nfs_server *server, int may_sleep) 4029ae42c70aSBryan Schumaker { 4030ae42c70aSBryan Schumaker return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep); 4031ae42c70aSBryan Schumaker } 40321da177e4SLinus Torvalds 4033504913fbSAndy Adamson /* 4034504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4035504913fbSAndy Adamson * one layout driver per file system. 4036504913fbSAndy Adamson */ 4037504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4038504913fbSAndy Adamson uint32_t *layouttype) 4039504913fbSAndy Adamson { 4040504913fbSAndy Adamson uint32_t *p; 4041504913fbSAndy Adamson int num; 4042504913fbSAndy Adamson 4043504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4044504913fbSAndy Adamson if (unlikely(!p)) 4045504913fbSAndy Adamson goto out_overflow; 4046504913fbSAndy Adamson num = be32_to_cpup(p); 4047504913fbSAndy Adamson 4048504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4049504913fbSAndy Adamson if (num == 0) { 4050504913fbSAndy Adamson *layouttype = 0; 4051504913fbSAndy Adamson return 0; 4052504913fbSAndy Adamson } 4053504913fbSAndy Adamson if (num > 1) 4054504913fbSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers " 4055504913fbSAndy Adamson "per filesystem not supported\n", __func__); 4056504913fbSAndy Adamson 4057504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4058504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4059504913fbSAndy Adamson if (unlikely(!p)) 4060504913fbSAndy Adamson goto out_overflow; 4061504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4062504913fbSAndy Adamson return 0; 4063504913fbSAndy Adamson out_overflow: 4064504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4065504913fbSAndy Adamson return -EIO; 4066504913fbSAndy Adamson } 4067504913fbSAndy Adamson 4068504913fbSAndy Adamson /* 4069504913fbSAndy Adamson * The type of file system exported. 4070504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4071504913fbSAndy Adamson */ 4072504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4073504913fbSAndy Adamson uint32_t *layouttype) 4074504913fbSAndy Adamson { 4075504913fbSAndy Adamson int status = 0; 4076504913fbSAndy Adamson 4077504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4078504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4079504913fbSAndy Adamson return -EIO; 4080504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4081504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4082504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4083504913fbSAndy Adamson } else 4084504913fbSAndy Adamson *layouttype = 0; 4085504913fbSAndy Adamson return status; 4086504913fbSAndy Adamson } 4087504913fbSAndy Adamson 40881da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 40891da177e4SLinus Torvalds { 40908687b63aSAl Viro __be32 *savep; 40911da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 40921da177e4SLinus Torvalds int status; 40931da177e4SLinus Torvalds 40941da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 40951da177e4SLinus Torvalds goto xdr_error; 40961da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 40971da177e4SLinus Torvalds goto xdr_error; 40981da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 40991da177e4SLinus Torvalds goto xdr_error; 41001da177e4SLinus Torvalds 41011da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 41021da177e4SLinus Torvalds 41031da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 41041da177e4SLinus Torvalds goto xdr_error; 41051da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 41061da177e4SLinus Torvalds goto xdr_error; 41071da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 41081da177e4SLinus Torvalds goto xdr_error; 41091da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 41101da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 41111da177e4SLinus Torvalds goto xdr_error; 41121da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 411355b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 411455b6e774SRicardo Labiaga if (status != 0) 411555b6e774SRicardo Labiaga goto xdr_error; 4116504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4117504913fbSAndy Adamson if (status != 0) 4118504913fbSAndy Adamson goto xdr_error; 41191da177e4SLinus Torvalds 41201da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 41211da177e4SLinus Torvalds xdr_error: 41223110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 41231da177e4SLinus Torvalds return status; 41241da177e4SLinus Torvalds } 41251da177e4SLinus Torvalds 41261da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 41271da177e4SLinus Torvalds { 41288687b63aSAl Viro __be32 *p; 41291da177e4SLinus Torvalds uint32_t len; 41301da177e4SLinus Torvalds int status; 41311da177e4SLinus Torvalds 41329936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 41339936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 41349936781dSTrond Myklebust 41351da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 41361da177e4SLinus Torvalds if (status) 41371da177e4SLinus Torvalds return status; 41381da177e4SLinus Torvalds 4139c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4140c0eae66eSBenny Halevy if (unlikely(!p)) 4141c0eae66eSBenny Halevy goto out_overflow; 4142cccddf4fSBenny Halevy len = be32_to_cpup(p); 41431da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 41441da177e4SLinus Torvalds return -EIO; 41451da177e4SLinus Torvalds fh->size = len; 4146c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4147c0eae66eSBenny Halevy if (unlikely(!p)) 4148c0eae66eSBenny Halevy goto out_overflow; 414999398d06SBenny Halevy memcpy(fh->data, p, len); 41501da177e4SLinus Torvalds return 0; 4151c0eae66eSBenny Halevy out_overflow: 4152c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4153c0eae66eSBenny Halevy return -EIO; 41541da177e4SLinus Torvalds } 41551da177e4SLinus Torvalds 41561da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41571da177e4SLinus Torvalds { 41581da177e4SLinus Torvalds int status; 41591da177e4SLinus Torvalds 41601da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 41611da177e4SLinus Torvalds if (status) 41621da177e4SLinus Torvalds return status; 41631da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 41641da177e4SLinus Torvalds } 41651da177e4SLinus Torvalds 41661da177e4SLinus Torvalds /* 41671da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 41681da177e4SLinus Torvalds */ 4169911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 41701da177e4SLinus Torvalds { 4171911d1aafSTrond Myklebust uint64_t offset, length, clientid; 41728687b63aSAl Viro __be32 *p; 4173911d1aafSTrond Myklebust uint32_t namelen, type; 41741da177e4SLinus Torvalds 4175babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4176c0eae66eSBenny Halevy if (unlikely(!p)) 4177c0eae66eSBenny Halevy goto out_overflow; 4178babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 41793ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4180babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4181babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4182911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4183911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4184911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4185911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4186911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4187911d1aafSTrond Myklebust if (type & 1) 4188911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4189911d1aafSTrond Myklebust fl->fl_pid = 0; 4190911d1aafSTrond Myklebust } 4191babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4192babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4193babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4194c0eae66eSBenny Halevy if (likely(p)) 41951da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4196c0eae66eSBenny Halevy out_overflow: 4197c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4198c0eae66eSBenny Halevy return -EIO; 41991da177e4SLinus Torvalds } 42001da177e4SLinus Torvalds 4201911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 42021da177e4SLinus Torvalds { 42031da177e4SLinus Torvalds int status; 42041da177e4SLinus Torvalds 42051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4206c1d51931STrond Myklebust if (status == -EIO) 4207c1d51931STrond Myklebust goto out; 42081da177e4SLinus Torvalds if (status == 0) { 420907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 421007d30434SBenny Halevy if (unlikely(status)) 421107d30434SBenny Halevy goto out; 42121da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4213c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4214c1d51931STrond Myklebust if (res->open_seqid != NULL) 4215c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4216c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4217c1d51931STrond Myklebust out: 42181da177e4SLinus Torvalds return status; 42191da177e4SLinus Torvalds } 42201da177e4SLinus Torvalds 4221911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 42221da177e4SLinus Torvalds { 42231da177e4SLinus Torvalds int status; 42241da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 42251da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4226911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 42271da177e4SLinus Torvalds return status; 42281da177e4SLinus Torvalds } 42291da177e4SLinus Torvalds 4230911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 42311da177e4SLinus Torvalds { 42321da177e4SLinus Torvalds int status; 42331da177e4SLinus Torvalds 42341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4235c1d51931STrond Myklebust if (status != -EIO) 4236c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 423707d30434SBenny Halevy if (status == 0) 423807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 42391da177e4SLinus Torvalds return status; 42401da177e4SLinus Torvalds } 42411da177e4SLinus Torvalds 4242d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4243d3c7b7ccSTrond Myklebust { 4244d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4245d3c7b7ccSTrond Myklebust } 4246d3c7b7ccSTrond Myklebust 42471da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 42481da177e4SLinus Torvalds { 42491da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 42501da177e4SLinus Torvalds } 42511da177e4SLinus Torvalds 42521da177e4SLinus Torvalds /* This is too sick! */ 42531da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 42541da177e4SLinus Torvalds { 42558687b63aSAl Viro __be32 *p; 42561da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 42571da177e4SLinus Torvalds 4258c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4259c0eae66eSBenny Halevy if (unlikely(!p)) 4260c0eae66eSBenny Halevy goto out_overflow; 42616f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 42621da177e4SLinus Torvalds switch (limit_type) { 42631da177e4SLinus Torvalds case 1: 4264cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 42651da177e4SLinus Torvalds break; 42661da177e4SLinus Torvalds case 2: 42676f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4268cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 42691da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 42701da177e4SLinus Torvalds } 42711da177e4SLinus Torvalds return 0; 4272c0eae66eSBenny Halevy out_overflow: 4273c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4274c0eae66eSBenny Halevy return -EIO; 42751da177e4SLinus Torvalds } 42761da177e4SLinus Torvalds 42771da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 42781da177e4SLinus Torvalds { 42798687b63aSAl Viro __be32 *p; 42801da177e4SLinus Torvalds uint32_t delegation_type; 428107d30434SBenny Halevy int status; 42821da177e4SLinus Torvalds 4283c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4284c0eae66eSBenny Halevy if (unlikely(!p)) 4285c0eae66eSBenny Halevy goto out_overflow; 4286cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 42871da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 42881da177e4SLinus Torvalds res->delegation_type = 0; 42891da177e4SLinus Torvalds return 0; 42901da177e4SLinus Torvalds } 429107d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 429207d30434SBenny Halevy if (unlikely(status)) 429307d30434SBenny Halevy return status; 4294c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4295c0eae66eSBenny Halevy if (unlikely(!p)) 4296c0eae66eSBenny Halevy goto out_overflow; 4297cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 429805d564feSAndy Adamson 42991da177e4SLinus Torvalds switch (delegation_type) { 43001da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 43011da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 43021da177e4SLinus Torvalds break; 43031da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 43041da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 43051da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 43061da177e4SLinus Torvalds return -EIO; 43071da177e4SLinus Torvalds } 43087539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4309c0eae66eSBenny Halevy out_overflow: 4310c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4311c0eae66eSBenny Halevy return -EIO; 43121da177e4SLinus Torvalds } 43131da177e4SLinus Torvalds 43141da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 43151da177e4SLinus Torvalds { 43168687b63aSAl Viro __be32 *p; 4317aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 43181da177e4SLinus Torvalds int status; 43191da177e4SLinus Torvalds 43201da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4321c1d51931STrond Myklebust if (status != -EIO) 4322c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 432307d30434SBenny Halevy if (!status) 432407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 432507d30434SBenny Halevy if (unlikely(status)) 43261da177e4SLinus Torvalds return status; 43271da177e4SLinus Torvalds 43281da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 43291da177e4SLinus Torvalds 4330c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4331c0eae66eSBenny Halevy if (unlikely(!p)) 4332c0eae66eSBenny Halevy goto out_overflow; 43336f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4334cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 43351da177e4SLinus Torvalds if (bmlen > 10) 43361da177e4SLinus Torvalds goto xdr_error; 43371da177e4SLinus Torvalds 4338c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4339c0eae66eSBenny Halevy if (unlikely(!p)) 4340c0eae66eSBenny Halevy goto out_overflow; 4341aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4342aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 43436f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4344aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4345aa53ed54SJeff Layton res->attrset[i] = 0; 4346aa53ed54SJeff Layton 43471da177e4SLinus Torvalds return decode_delegation(xdr, res); 43481da177e4SLinus Torvalds xdr_error: 43493110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 43501da177e4SLinus Torvalds return -EIO; 4351c0eae66eSBenny Halevy out_overflow: 4352c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4353c0eae66eSBenny Halevy return -EIO; 43541da177e4SLinus Torvalds } 43551da177e4SLinus Torvalds 43561da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 43571da177e4SLinus Torvalds { 43581da177e4SLinus Torvalds int status; 43591da177e4SLinus Torvalds 43601da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4361c1d51931STrond Myklebust if (status != -EIO) 4362c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 436307d30434SBenny Halevy if (!status) 436407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43651da177e4SLinus Torvalds return status; 43661da177e4SLinus Torvalds } 43671da177e4SLinus Torvalds 43681da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 43691da177e4SLinus Torvalds { 43701da177e4SLinus Torvalds int status; 43711da177e4SLinus Torvalds 43721da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4373c1d51931STrond Myklebust if (status != -EIO) 4374c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 437507d30434SBenny Halevy if (!status) 437607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43771da177e4SLinus Torvalds return status; 43781da177e4SLinus Torvalds } 43791da177e4SLinus Torvalds 43801da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 43811da177e4SLinus Torvalds { 43821da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 43831da177e4SLinus Torvalds } 43841da177e4SLinus Torvalds 43851da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 43861da177e4SLinus Torvalds { 43871da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 43881da177e4SLinus Torvalds } 43891da177e4SLinus Torvalds 43901da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 43911da177e4SLinus Torvalds { 43921da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 43938687b63aSAl Viro __be32 *p; 43941da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 43951da177e4SLinus Torvalds int status; 43961da177e4SLinus Torvalds 43971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 43981da177e4SLinus Torvalds if (status) 43991da177e4SLinus Torvalds return status; 4400c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4401c0eae66eSBenny Halevy if (unlikely(!p)) 4402c0eae66eSBenny Halevy goto out_overflow; 44036f723f77SBenny Halevy eof = be32_to_cpup(p++); 4404cccddf4fSBenny Halevy count = be32_to_cpup(p); 44058111f373SChuck Lever hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 44061da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 44071da177e4SLinus Torvalds if (count > recvd) { 4408fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 44091da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 44101da177e4SLinus Torvalds count = recvd; 44111da177e4SLinus Torvalds eof = 0; 44121da177e4SLinus Torvalds } 44131da177e4SLinus Torvalds xdr_read_pages(xdr, count); 44141da177e4SLinus Torvalds res->eof = eof; 44151da177e4SLinus Torvalds res->count = count; 44161da177e4SLinus Torvalds return 0; 4417c0eae66eSBenny Halevy out_overflow: 4418c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4419c0eae66eSBenny Halevy return -EIO; 44201da177e4SLinus Torvalds } 44211da177e4SLinus Torvalds 44221da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 44231da177e4SLinus Torvalds { 44241da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 44251da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4426bcecff77SChuck Lever size_t hdrlen; 4427bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 4428bcecff77SChuck Lever int status; 44291da177e4SLinus Torvalds 44301da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4431db942bbdSBenny Halevy if (!status) 4432db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4433db942bbdSBenny Halevy if (unlikely(status)) 44341da177e4SLinus Torvalds return status; 443544109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 443644109241SFred Isaman __func__, 4437eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4438eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4439eadf4598STrond Myklebust 44401da177e4SLinus Torvalds 4441db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 44421da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 44431da177e4SLinus Torvalds if (pglen > recvd) 44441da177e4SLinus Torvalds pglen = recvd; 44451da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 44461da177e4SLinus Torvalds 44477bda2cdfSJeff Layton 4448ac396128STrond Myklebust return pglen; 44491da177e4SLinus Torvalds } 44501da177e4SLinus Torvalds 44511da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 44521da177e4SLinus Torvalds { 44531da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 44541da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4455bcecff77SChuck Lever size_t hdrlen; 4456bcecff77SChuck Lever u32 len, recvd; 44578687b63aSAl Viro __be32 *p; 44581da177e4SLinus Torvalds int status; 44591da177e4SLinus Torvalds 44601da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 44611da177e4SLinus Torvalds if (status) 44621da177e4SLinus Torvalds return status; 44631da177e4SLinus Torvalds 44641da177e4SLinus Torvalds /* Convert length of symlink */ 4465c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4466c0eae66eSBenny Halevy if (unlikely(!p)) 4467c0eae66eSBenny Halevy goto out_overflow; 4468cccddf4fSBenny Halevy len = be32_to_cpup(p); 44691da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4470fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 44711da177e4SLinus Torvalds return -ENAMETOOLONG; 44721da177e4SLinus Torvalds } 44731da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 44741da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 44751da177e4SLinus Torvalds if (recvd < len) { 4476fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 44771da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 44781da177e4SLinus Torvalds return -EIO; 44791da177e4SLinus Torvalds } 44801da177e4SLinus Torvalds xdr_read_pages(xdr, len); 44811da177e4SLinus Torvalds /* 44821da177e4SLinus Torvalds * The XDR encode routine has set things up so that 44831da177e4SLinus Torvalds * the link text will be copied directly into the 44841da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 44851da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 44861da177e4SLinus Torvalds * null-termination). 44871da177e4SLinus Torvalds */ 4488b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 44891da177e4SLinus Torvalds return 0; 4490c0eae66eSBenny Halevy out_overflow: 4491c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4492c0eae66eSBenny Halevy return -EIO; 44931da177e4SLinus Torvalds } 44941da177e4SLinus Torvalds 44951da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 44961da177e4SLinus Torvalds { 44971da177e4SLinus Torvalds int status; 44981da177e4SLinus Torvalds 44991da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 45001da177e4SLinus Torvalds if (status) 45011da177e4SLinus Torvalds goto out; 45021da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 45031da177e4SLinus Torvalds out: 45041da177e4SLinus Torvalds return status; 45051da177e4SLinus Torvalds } 45061da177e4SLinus Torvalds 45071da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 45081da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 45091da177e4SLinus Torvalds { 45101da177e4SLinus Torvalds int status; 45111da177e4SLinus Torvalds 45121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 45131da177e4SLinus Torvalds if (status) 45141da177e4SLinus Torvalds goto out; 45151da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 45161da177e4SLinus Torvalds goto out; 45171da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 45181da177e4SLinus Torvalds out: 45191da177e4SLinus Torvalds return status; 45201da177e4SLinus Torvalds } 45211da177e4SLinus Torvalds 45221da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 45231da177e4SLinus Torvalds { 45241da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 45251da177e4SLinus Torvalds } 45261da177e4SLinus Torvalds 452756ae19f3STrond Myklebust static int 452856ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 452956ae19f3STrond Myklebust { 453056ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 453156ae19f3STrond Myklebust } 453256ae19f3STrond Myklebust 4533029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4534029d105eSJ. Bruce Fields size_t *acl_len) 4535029d105eSJ. Bruce Fields { 45368687b63aSAl Viro __be32 *savep; 4537029d105eSJ. Bruce Fields uint32_t attrlen, 4538029d105eSJ. Bruce Fields bitmap[2] = {0}; 4539029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4540029d105eSJ. Bruce Fields int status; 4541029d105eSJ. Bruce Fields 4542029d105eSJ. Bruce Fields *acl_len = 0; 4543029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4544029d105eSJ. Bruce Fields goto out; 4545029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4546029d105eSJ. Bruce Fields goto out; 4547029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4548029d105eSJ. Bruce Fields goto out; 4549029d105eSJ. Bruce Fields 4550029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4551029d105eSJ. Bruce Fields return -EIO; 4552029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4553bcecff77SChuck Lever size_t hdrlen; 4554bcecff77SChuck Lever u32 recvd; 4555029d105eSJ. Bruce Fields 4556029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4557029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4558029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4559029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4560029d105eSJ. Bruce Fields if (attrlen > recvd) { 4561fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4562029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4563029d105eSJ. Bruce Fields attrlen, recvd); 4564029d105eSJ. Bruce Fields return -EINVAL; 4565029d105eSJ. Bruce Fields } 4566029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4567029d105eSJ. Bruce Fields *acl_len = attrlen; 45688c233cf9SJ. Bruce Fields } else 45698c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4570029d105eSJ. Bruce Fields 4571029d105eSJ. Bruce Fields out: 4572029d105eSJ. Bruce Fields return status; 4573029d105eSJ. Bruce Fields } 4574029d105eSJ. Bruce Fields 45751da177e4SLinus Torvalds static int 45761da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 45771da177e4SLinus Torvalds { 45781da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 45791da177e4SLinus Torvalds } 45801da177e4SLinus Torvalds 45819e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 45821da177e4SLinus Torvalds { 45838687b63aSAl Viro __be32 *p; 45841da177e4SLinus Torvalds uint32_t bmlen; 45851da177e4SLinus Torvalds int status; 45861da177e4SLinus Torvalds 45871da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 45881da177e4SLinus Torvalds if (status) 45891da177e4SLinus Torvalds return status; 4590c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4591c0eae66eSBenny Halevy if (unlikely(!p)) 4592c0eae66eSBenny Halevy goto out_overflow; 4593cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4594c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4595c0eae66eSBenny Halevy if (likely(p)) 45961da177e4SLinus Torvalds return 0; 4597c0eae66eSBenny Halevy out_overflow: 4598c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4599c0eae66eSBenny Halevy return -EIO; 46001da177e4SLinus Torvalds } 46011da177e4SLinus Torvalds 4602bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 46031da177e4SLinus Torvalds { 46048687b63aSAl Viro __be32 *p; 46051da177e4SLinus Torvalds uint32_t opnum; 46061da177e4SLinus Torvalds int32_t nfserr; 46071da177e4SLinus Torvalds 4608c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4609c0eae66eSBenny Halevy if (unlikely(!p)) 4610c0eae66eSBenny Halevy goto out_overflow; 46116f723f77SBenny Halevy opnum = be32_to_cpup(p++); 46121da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4613fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 46141da177e4SLinus Torvalds " %d\n", opnum); 46151da177e4SLinus Torvalds return -EIO; 46161da177e4SLinus Torvalds } 4617cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 46181da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4619c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4620c0eae66eSBenny Halevy if (unlikely(!p)) 4621c0eae66eSBenny Halevy goto out_overflow; 4622bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 4623bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 46241da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 46251da177e4SLinus Torvalds uint32_t len; 46261da177e4SLinus Torvalds 46271da177e4SLinus Torvalds /* skip netid string */ 4628c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4629c0eae66eSBenny Halevy if (unlikely(!p)) 4630c0eae66eSBenny Halevy goto out_overflow; 4631cccddf4fSBenny Halevy len = be32_to_cpup(p); 4632c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4633c0eae66eSBenny Halevy if (unlikely(!p)) 4634c0eae66eSBenny Halevy goto out_overflow; 46351da177e4SLinus Torvalds 46361da177e4SLinus Torvalds /* skip uaddr string */ 4637c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4638c0eae66eSBenny Halevy if (unlikely(!p)) 4639c0eae66eSBenny Halevy goto out_overflow; 4640cccddf4fSBenny Halevy len = be32_to_cpup(p); 4641c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4642c0eae66eSBenny Halevy if (unlikely(!p)) 4643c0eae66eSBenny Halevy goto out_overflow; 46441da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 46451da177e4SLinus Torvalds } else 4646856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 46471da177e4SLinus Torvalds 46481da177e4SLinus Torvalds return 0; 4649c0eae66eSBenny Halevy out_overflow: 4650c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4651c0eae66eSBenny Halevy return -EIO; 46521da177e4SLinus Torvalds } 46531da177e4SLinus Torvalds 46541da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 46551da177e4SLinus Torvalds { 46561da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 46571da177e4SLinus Torvalds } 46581da177e4SLinus Torvalds 46591da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 46601da177e4SLinus Torvalds { 46618687b63aSAl Viro __be32 *p; 46621da177e4SLinus Torvalds int status; 46631da177e4SLinus Torvalds 46641da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 46651da177e4SLinus Torvalds if (status) 46661da177e4SLinus Torvalds return status; 46671da177e4SLinus Torvalds 4668c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4669c0eae66eSBenny Halevy if (unlikely(!p)) 4670c0eae66eSBenny Halevy goto out_overflow; 46716f723f77SBenny Halevy res->count = be32_to_cpup(p++); 46726f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 467399398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 46741da177e4SLinus Torvalds return 0; 4675c0eae66eSBenny Halevy out_overflow: 4676c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4677c0eae66eSBenny Halevy return -EIO; 46781da177e4SLinus Torvalds } 46791da177e4SLinus Torvalds 46801da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 46811da177e4SLinus Torvalds { 46821da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 46831da177e4SLinus Torvalds } 46841da177e4SLinus Torvalds 468599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 468699fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 468799fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 468899fe60d0SBenny Halevy { 468999fe60d0SBenny Halevy __be32 *p; 469099fe60d0SBenny Halevy uint32_t dummy; 46912460ba57SBenny Halevy char *dummy_str; 469299fe60d0SBenny Halevy int status; 469399fe60d0SBenny Halevy struct nfs_client *clp = res->client; 469499fe60d0SBenny Halevy 469599fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 469699fe60d0SBenny Halevy if (status) 469799fe60d0SBenny Halevy return status; 469899fe60d0SBenny Halevy 4699c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4700c0eae66eSBenny Halevy if (unlikely(!p)) 4701c0eae66eSBenny Halevy goto out_overflow; 4702114f64b5SAndy Adamson xdr_decode_hyper(p, &clp->cl_clientid); 4703c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4704c0eae66eSBenny Halevy if (unlikely(!p)) 4705c0eae66eSBenny Halevy goto out_overflow; 47066f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 47076f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 470899fe60d0SBenny Halevy 470999fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4710cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 471199fe60d0SBenny Halevy if (dummy != SP4_NONE) 471299fe60d0SBenny Halevy return -EIO; 471399fe60d0SBenny Halevy 471499fe60d0SBenny Halevy /* Throw away minor_id */ 4715c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4716c0eae66eSBenny Halevy if (unlikely(!p)) 4717c0eae66eSBenny Halevy goto out_overflow; 471899fe60d0SBenny Halevy 471999fe60d0SBenny Halevy /* Throw away Major id */ 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 server_scope */ 47252460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47262460ba57SBenny Halevy if (unlikely(status)) 47272460ba57SBenny Halevy return status; 472899fe60d0SBenny Halevy 472999fe60d0SBenny Halevy /* Throw away Implementation id array */ 47302460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47312460ba57SBenny Halevy if (unlikely(status)) 47322460ba57SBenny Halevy return status; 473399fe60d0SBenny Halevy 473499fe60d0SBenny Halevy return 0; 4735c0eae66eSBenny Halevy out_overflow: 4736c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4737c0eae66eSBenny Halevy return -EIO; 473899fe60d0SBenny Halevy } 4739fc931582SAndy Adamson 4740fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4741fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4742fc931582SAndy Adamson { 4743fc931582SAndy Adamson __be32 *p; 4744fc931582SAndy Adamson u32 nr_attrs; 4745fc931582SAndy Adamson 4746c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4747c0eae66eSBenny Halevy if (unlikely(!p)) 4748c0eae66eSBenny Halevy goto out_overflow; 47496f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 47506f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 47516f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 47526f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 47536f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 47546f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4755cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4756fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4757fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4758fc931582SAndy Adamson __func__, nr_attrs); 4759fc931582SAndy Adamson return -EINVAL; 4760fc931582SAndy Adamson } 4761c0eae66eSBenny Halevy if (nr_attrs == 1) { 4762c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4763c0eae66eSBenny Halevy if (unlikely(!p)) 4764c0eae66eSBenny Halevy goto out_overflow; 4765c0eae66eSBenny Halevy } 4766fc931582SAndy Adamson return 0; 4767c0eae66eSBenny Halevy out_overflow: 4768c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4769c0eae66eSBenny Halevy return -EIO; 4770fc931582SAndy Adamson } 4771fc931582SAndy Adamson 4772e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4773e78291e4SBenny Halevy { 4774e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4775fc931582SAndy Adamson } 4776fc931582SAndy Adamson 4777fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4778fc931582SAndy Adamson struct nfs41_create_session_res *res) 4779fc931582SAndy Adamson { 4780fc931582SAndy Adamson __be32 *p; 4781fc931582SAndy Adamson int status; 4782fc931582SAndy Adamson struct nfs_client *clp = res->client; 4783fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4784fc931582SAndy Adamson 4785fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4786e78291e4SBenny Halevy if (!status) 4787e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4788e78291e4SBenny Halevy if (unlikely(status)) 4789fc931582SAndy Adamson return status; 4790fc931582SAndy Adamson 4791fc931582SAndy Adamson /* seqid, flags */ 4792c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4793c0eae66eSBenny Halevy if (unlikely(!p)) 4794c0eae66eSBenny Halevy goto out_overflow; 47956f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4796cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4797fc931582SAndy Adamson 4798fc931582SAndy Adamson /* Channel attributes */ 4799fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4800fc931582SAndy Adamson if (!status) 4801fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4802fc931582SAndy Adamson return status; 4803c0eae66eSBenny Halevy out_overflow: 4804c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4805c0eae66eSBenny Halevy return -EIO; 4806fc931582SAndy Adamson } 48070f3e66c6SAndy Adamson 48080f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 48090f3e66c6SAndy Adamson { 48100f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 48110f3e66c6SAndy Adamson } 481218019753SRicardo Labiaga 481318019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 481418019753SRicardo Labiaga { 481518019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 481618019753SRicardo Labiaga } 481799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 481899fe60d0SBenny Halevy 48199b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 48209b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 48219b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 48229b7b9fccSAndy Adamson { 48239b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4824fc01cea9SAndy Adamson struct nfs4_sessionid id; 4825fc01cea9SAndy Adamson u32 dummy; 4826fc01cea9SAndy Adamson int status; 4827fc01cea9SAndy Adamson __be32 *p; 4828fc01cea9SAndy Adamson 48299b7b9fccSAndy Adamson if (!res->sr_session) 48309b7b9fccSAndy Adamson return 0; 48319b7b9fccSAndy Adamson 4832fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4833e78291e4SBenny Halevy if (!status) 4834e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 4835e78291e4SBenny Halevy if (unlikely(status)) 4836fc01cea9SAndy Adamson goto out_err; 48379b7b9fccSAndy Adamson 4838fc01cea9SAndy Adamson /* 4839fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4840fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4841fc01cea9SAndy Adamson */ 4842fdcb4577STrond Myklebust status = -EREMOTEIO; 4843fc01cea9SAndy Adamson 4844fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4845fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4846fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4847fc01cea9SAndy Adamson goto out_err; 4848fc01cea9SAndy Adamson } 4849e78291e4SBenny Halevy 4850c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4851c0eae66eSBenny Halevy if (unlikely(!p)) 4852c0eae66eSBenny Halevy goto out_overflow; 4853e78291e4SBenny Halevy 4854fc01cea9SAndy Adamson /* seqid */ 48556f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4856dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 4857fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4858fc01cea9SAndy Adamson goto out_err; 4859fc01cea9SAndy Adamson } 4860fc01cea9SAndy Adamson /* slot id */ 48616f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4862dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 4863fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4864fc01cea9SAndy Adamson goto out_err; 4865fc01cea9SAndy Adamson } 4866fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 48676f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4868fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 48696f723f77SBenny Halevy dummy = be32_to_cpup(p++); 48700629e370SAlexandros Batsakis /* result flags */ 48710629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 4872fc01cea9SAndy Adamson status = 0; 4873fc01cea9SAndy Adamson out_err: 4874fc01cea9SAndy Adamson res->sr_status = status; 4875fc01cea9SAndy Adamson return status; 4876c0eae66eSBenny Halevy out_overflow: 4877c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4878c0eae66eSBenny Halevy status = -EIO; 4879c0eae66eSBenny Halevy goto out_err; 4880fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 48819b7b9fccSAndy Adamson return 0; 4882fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 48839b7b9fccSAndy Adamson } 48849b7b9fccSAndy Adamson 4885b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 4886b1f69b75SAndy Adamson 4887b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 4888b1f69b75SAndy Adamson struct pnfs_device *pdev) 4889b1f69b75SAndy Adamson { 4890b1f69b75SAndy Adamson __be32 *p; 4891b1f69b75SAndy Adamson uint32_t len, type; 4892b1f69b75SAndy Adamson int status; 4893b1f69b75SAndy Adamson 4894b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 4895b1f69b75SAndy Adamson if (status) { 4896b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 4897b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 4898b1f69b75SAndy Adamson if (unlikely(!p)) 4899b1f69b75SAndy Adamson goto out_overflow; 4900b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 4901b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 4902b1f69b75SAndy Adamson __func__, pdev->mincount); 4903b1f69b75SAndy Adamson } 4904b1f69b75SAndy Adamson return status; 4905b1f69b75SAndy Adamson } 4906b1f69b75SAndy Adamson 4907b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 4908b1f69b75SAndy Adamson if (unlikely(!p)) 4909b1f69b75SAndy Adamson goto out_overflow; 4910b1f69b75SAndy Adamson type = be32_to_cpup(p++); 4911b1f69b75SAndy Adamson if (type != pdev->layout_type) { 4912b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 4913b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 4914b1f69b75SAndy Adamson return -EINVAL; 4915b1f69b75SAndy Adamson } 4916b1f69b75SAndy Adamson /* 4917b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 4918b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 4919b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 4920b1f69b75SAndy Adamson */ 4921b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 4922b1f69b75SAndy Adamson xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ 4923b1f69b75SAndy Adamson 4924b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 4925b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 4926b1f69b75SAndy Adamson if (unlikely(!p)) 4927b1f69b75SAndy Adamson goto out_overflow; 4928b1f69b75SAndy Adamson len = be32_to_cpup(p); 4929b1f69b75SAndy Adamson if (len) { 4930ead00597SChuck Lever uint32_t i; 4931b1f69b75SAndy Adamson 4932b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 4933b1f69b75SAndy Adamson if (unlikely(!p)) 4934b1f69b75SAndy Adamson goto out_overflow; 4935b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 4936b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 4937b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 4938b1f69b75SAndy Adamson __func__); 4939b1f69b75SAndy Adamson return -EIO; 4940b1f69b75SAndy Adamson } 4941b1f69b75SAndy Adamson } 4942b1f69b75SAndy Adamson } 4943b1f69b75SAndy Adamson return 0; 4944b1f69b75SAndy Adamson out_overflow: 4945b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 4946b1f69b75SAndy Adamson return -EIO; 4947b1f69b75SAndy Adamson } 4948b1f69b75SAndy Adamson 4949b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 4950b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 4951b1f69b75SAndy Adamson { 4952b1f69b75SAndy Adamson __be32 *p; 4953b1f69b75SAndy Adamson int status; 4954b1f69b75SAndy Adamson u32 layout_count; 4955b1f69b75SAndy Adamson 4956b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 4957b1f69b75SAndy Adamson if (status) 4958b1f69b75SAndy Adamson return status; 4959b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); 4960b1f69b75SAndy Adamson if (unlikely(!p)) 4961b1f69b75SAndy Adamson goto out_overflow; 4962b1f69b75SAndy Adamson res->return_on_close = be32_to_cpup(p++); 4963b1f69b75SAndy Adamson p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); 4964b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 4965b1f69b75SAndy Adamson if (!layout_count) { 4966b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 4967b1f69b75SAndy Adamson __func__); 4968b1f69b75SAndy Adamson return -EINVAL; 4969b1f69b75SAndy Adamson } 4970b1f69b75SAndy Adamson 4971b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 24); 4972b1f69b75SAndy Adamson if (unlikely(!p)) 4973b1f69b75SAndy Adamson goto out_overflow; 4974b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 4975b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 4976b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 4977b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 4978b1f69b75SAndy Adamson 4979b1f69b75SAndy Adamson status = decode_opaque_inline(xdr, &res->layout.len, (char **)&p); 4980b1f69b75SAndy Adamson if (unlikely(status)) 4981b1f69b75SAndy Adamson return status; 4982b1f69b75SAndy Adamson 4983b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 4984b1f69b75SAndy Adamson __func__, 4985b1f69b75SAndy Adamson (unsigned long)res->range.offset, 4986b1f69b75SAndy Adamson (unsigned long)res->range.length, 4987b1f69b75SAndy Adamson res->range.iomode, 4988b1f69b75SAndy Adamson res->type, 4989b1f69b75SAndy Adamson res->layout.len); 4990b1f69b75SAndy Adamson 4991b1f69b75SAndy Adamson /* nfs4_proc_layoutget allocated a single page */ 4992b1f69b75SAndy Adamson if (res->layout.len > PAGE_SIZE) 4993b1f69b75SAndy Adamson return -ENOMEM; 4994b1f69b75SAndy Adamson memcpy(res->layout.buf, p, res->layout.len); 4995b1f69b75SAndy Adamson 4996b1f69b75SAndy Adamson if (layout_count > 1) { 4997b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 4998b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 4999b1f69b75SAndy Adamson * the client may see a response that is less than the 5000b1f69b75SAndy Adamson * minimum it requested. 5001b1f69b75SAndy Adamson */ 5002b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5003b1f69b75SAndy Adamson __func__, layout_count); 5004b1f69b75SAndy Adamson } 5005b1f69b75SAndy Adamson 5006b1f69b75SAndy Adamson return 0; 5007b1f69b75SAndy Adamson out_overflow: 5008b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5009b1f69b75SAndy Adamson return -EIO; 5010b1f69b75SAndy Adamson } 5011b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5012b1f69b75SAndy Adamson 50131da177e4SLinus Torvalds /* 501449c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 501549c2559eSBenny Halevy */ 501649c2559eSBenny Halevy 501749c2559eSBenny Halevy /* 50181da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 50191da177e4SLinus Torvalds */ 5020bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5021bf269551SChuck Lever struct xdr_stream *xdr, 5022bf269551SChuck Lever struct nfs_closeres *res) 50231da177e4SLinus Torvalds { 50241da177e4SLinus Torvalds struct compound_hdr hdr; 50251da177e4SLinus Torvalds int status; 50261da177e4SLinus Torvalds 5027bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 50281da177e4SLinus Torvalds if (status) 50291da177e4SLinus Torvalds goto out; 5030bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 50319b7b9fccSAndy Adamson if (status) 50329b7b9fccSAndy Adamson goto out; 5033bf269551SChuck Lever status = decode_putfh(xdr); 50341da177e4SLinus Torvalds if (status) 50351da177e4SLinus Torvalds goto out; 5036bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5037516a6af6STrond Myklebust if (status != 0) 5038516a6af6STrond Myklebust goto out; 5039bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 504080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50411da177e4SLinus Torvalds out: 50421da177e4SLinus Torvalds return status; 50431da177e4SLinus Torvalds } 50441da177e4SLinus Torvalds 50451da177e4SLinus Torvalds /* 50461da177e4SLinus Torvalds * Decode ACCESS response 50471da177e4SLinus Torvalds */ 5048bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5049bf269551SChuck Lever struct nfs4_accessres *res) 50501da177e4SLinus Torvalds { 50511da177e4SLinus Torvalds struct compound_hdr hdr; 50521da177e4SLinus Torvalds int status; 50531da177e4SLinus Torvalds 5054bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 50559b7b9fccSAndy Adamson if (status) 50569b7b9fccSAndy Adamson goto out; 5057bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 50589b7b9fccSAndy Adamson if (status) 50591da177e4SLinus Torvalds goto out; 5060bf269551SChuck Lever status = decode_putfh(xdr); 506176b32999STrond Myklebust if (status != 0) 506276b32999STrond Myklebust goto out; 5063bf269551SChuck Lever status = decode_access(xdr, res); 506476b32999STrond Myklebust if (status != 0) 506576b32999STrond Myklebust goto out; 5066bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 506780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50681da177e4SLinus Torvalds out: 50691da177e4SLinus Torvalds return status; 50701da177e4SLinus Torvalds } 50711da177e4SLinus Torvalds 50721da177e4SLinus Torvalds /* 50731da177e4SLinus Torvalds * Decode LOOKUP response 50741da177e4SLinus Torvalds */ 5075bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5076bf269551SChuck Lever struct nfs4_lookup_res *res) 50771da177e4SLinus Torvalds { 50781da177e4SLinus Torvalds struct compound_hdr hdr; 50791da177e4SLinus Torvalds int status; 50801da177e4SLinus Torvalds 5081bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 50829b7b9fccSAndy Adamson if (status) 50839b7b9fccSAndy Adamson goto out; 5084bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 50859b7b9fccSAndy Adamson if (status) 50861da177e4SLinus Torvalds goto out; 5087bf269551SChuck Lever status = decode_putfh(xdr); 5088bf269551SChuck Lever if (status) 50891da177e4SLinus Torvalds goto out; 5090bf269551SChuck Lever status = decode_lookup(xdr); 5091bf269551SChuck Lever if (status) 50921da177e4SLinus Torvalds goto out; 5093bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5094bf269551SChuck Lever if (status) 50951da177e4SLinus Torvalds goto out; 5096bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server 509780e52aceSTrond Myklebust ,!RPC_IS_ASYNC(rqstp->rq_task)); 50981da177e4SLinus Torvalds out: 50991da177e4SLinus Torvalds return status; 51001da177e4SLinus Torvalds } 51011da177e4SLinus Torvalds 51021da177e4SLinus Torvalds /* 51031da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 51041da177e4SLinus Torvalds */ 5105bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5106bf269551SChuck Lever struct xdr_stream *xdr, 5107bf269551SChuck Lever struct nfs4_lookup_res *res) 51081da177e4SLinus Torvalds { 51091da177e4SLinus Torvalds struct compound_hdr hdr; 51101da177e4SLinus Torvalds int status; 51111da177e4SLinus Torvalds 5112bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 51139b7b9fccSAndy Adamson if (status) 51149b7b9fccSAndy Adamson goto out; 5115bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 51169b7b9fccSAndy Adamson if (status) 51171da177e4SLinus Torvalds goto out; 5118bf269551SChuck Lever status = decode_putrootfh(xdr); 5119bf269551SChuck Lever if (status) 51201da177e4SLinus Torvalds goto out; 5121bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5122bf269551SChuck Lever if (status == 0) 5123bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server, 512480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51251da177e4SLinus Torvalds out: 51261da177e4SLinus Torvalds return status; 51271da177e4SLinus Torvalds } 51281da177e4SLinus Torvalds 51291da177e4SLinus Torvalds /* 51301da177e4SLinus Torvalds * Decode REMOVE response 51311da177e4SLinus Torvalds */ 5132bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5133bf269551SChuck Lever struct nfs_removeres *res) 51341da177e4SLinus Torvalds { 51351da177e4SLinus Torvalds struct compound_hdr hdr; 51361da177e4SLinus Torvalds int status; 51371da177e4SLinus Torvalds 5138bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 51399b7b9fccSAndy Adamson if (status) 51409b7b9fccSAndy Adamson goto out; 5141bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 51429b7b9fccSAndy Adamson if (status) 51431da177e4SLinus Torvalds goto out; 5144bf269551SChuck Lever status = decode_putfh(xdr); 5145bf269551SChuck Lever if (status) 514616e42959STrond Myklebust goto out; 5147bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 5148bf269551SChuck Lever if (status) 514916e42959STrond Myklebust goto out; 5150bf269551SChuck Lever decode_getfattr(xdr, res->dir_attr, res->server, 515180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51521da177e4SLinus Torvalds out: 51531da177e4SLinus Torvalds return status; 51541da177e4SLinus Torvalds } 51551da177e4SLinus Torvalds 51561da177e4SLinus Torvalds /* 51571da177e4SLinus Torvalds * Decode RENAME response 51581da177e4SLinus Torvalds */ 5159bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5160bf269551SChuck Lever struct nfs_renameres *res) 51611da177e4SLinus Torvalds { 51621da177e4SLinus Torvalds struct compound_hdr hdr; 51631da177e4SLinus Torvalds int status; 51641da177e4SLinus Torvalds 5165bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 51669b7b9fccSAndy Adamson if (status) 51679b7b9fccSAndy Adamson goto out; 5168bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 51699b7b9fccSAndy Adamson if (status) 51701da177e4SLinus Torvalds goto out; 5171bf269551SChuck Lever status = decode_putfh(xdr); 5172bf269551SChuck Lever if (status) 51731da177e4SLinus Torvalds goto out; 5174bf269551SChuck Lever status = decode_savefh(xdr); 5175bf269551SChuck Lever if (status) 51761da177e4SLinus Torvalds goto out; 5177bf269551SChuck Lever status = decode_putfh(xdr); 5178bf269551SChuck Lever if (status) 51791da177e4SLinus Torvalds goto out; 5180bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 5181bf269551SChuck Lever if (status) 51826caf2c82STrond Myklebust goto out; 51836caf2c82STrond Myklebust /* Current FH is target directory */ 5184bf269551SChuck Lever if (decode_getfattr(xdr, res->new_fattr, res->server, 518580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 51866caf2c82STrond Myklebust goto out; 5187bf269551SChuck Lever status = decode_restorefh(xdr); 5188bf269551SChuck Lever if (status) 51896caf2c82STrond Myklebust goto out; 5190bf269551SChuck Lever decode_getfattr(xdr, res->old_fattr, res->server, 519180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51921da177e4SLinus Torvalds out: 51931da177e4SLinus Torvalds return status; 51941da177e4SLinus Torvalds } 51951da177e4SLinus Torvalds 51961da177e4SLinus Torvalds /* 51971da177e4SLinus Torvalds * Decode LINK response 51981da177e4SLinus Torvalds */ 5199bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5200bf269551SChuck Lever struct nfs4_link_res *res) 52011da177e4SLinus Torvalds { 52021da177e4SLinus Torvalds struct compound_hdr hdr; 52031da177e4SLinus Torvalds int status; 52041da177e4SLinus Torvalds 5205bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52069b7b9fccSAndy Adamson if (status) 52079b7b9fccSAndy Adamson goto out; 5208bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52099b7b9fccSAndy Adamson if (status) 52101da177e4SLinus Torvalds goto out; 5211bf269551SChuck Lever status = decode_putfh(xdr); 5212bf269551SChuck Lever if (status) 52131da177e4SLinus Torvalds goto out; 5214bf269551SChuck Lever status = decode_savefh(xdr); 5215bf269551SChuck Lever if (status) 52161da177e4SLinus Torvalds goto out; 5217bf269551SChuck Lever status = decode_putfh(xdr); 5218bf269551SChuck Lever if (status) 52191da177e4SLinus Torvalds goto out; 5220bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 5221bf269551SChuck Lever if (status) 522291ba2eeeSTrond Myklebust goto out; 522391ba2eeeSTrond Myklebust /* 522491ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 522591ba2eeeSTrond Myklebust * filehandle. 522691ba2eeeSTrond Myklebust */ 5227bf269551SChuck Lever if (decode_getfattr(xdr, res->dir_attr, res->server, 522880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 522991ba2eeeSTrond Myklebust goto out; 5230bf269551SChuck Lever status = decode_restorefh(xdr); 5231bf269551SChuck Lever if (status) 523291ba2eeeSTrond Myklebust goto out; 5233bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 523480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52351da177e4SLinus Torvalds out: 52361da177e4SLinus Torvalds return status; 52371da177e4SLinus Torvalds } 52381da177e4SLinus Torvalds 52391da177e4SLinus Torvalds /* 52401da177e4SLinus Torvalds * Decode CREATE response 52411da177e4SLinus Torvalds */ 5242bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5243bf269551SChuck Lever struct nfs4_create_res *res) 52441da177e4SLinus Torvalds { 52451da177e4SLinus Torvalds struct compound_hdr hdr; 52461da177e4SLinus Torvalds int status; 52471da177e4SLinus Torvalds 5248bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52499b7b9fccSAndy Adamson if (status) 52509b7b9fccSAndy Adamson goto out; 5251bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52529b7b9fccSAndy Adamson if (status) 52531da177e4SLinus Torvalds goto out; 5254bf269551SChuck Lever status = decode_putfh(xdr); 5255bf269551SChuck Lever if (status) 52561da177e4SLinus Torvalds goto out; 5257bf269551SChuck Lever status = decode_savefh(xdr); 5258bf269551SChuck Lever if (status) 525956ae19f3STrond Myklebust goto out; 5260bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 5261bf269551SChuck Lever if (status) 52621da177e4SLinus Torvalds goto out; 5263bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5264bf269551SChuck Lever if (status) 52651da177e4SLinus Torvalds goto out; 5266bf269551SChuck Lever if (decode_getfattr(xdr, res->fattr, res->server, 526780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 526856ae19f3STrond Myklebust goto out; 5269bf269551SChuck Lever status = decode_restorefh(xdr); 5270bf269551SChuck Lever if (status) 527156ae19f3STrond Myklebust goto out; 5272bf269551SChuck Lever decode_getfattr(xdr, res->dir_fattr, res->server, 527380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52741da177e4SLinus Torvalds out: 52751da177e4SLinus Torvalds return status; 52761da177e4SLinus Torvalds } 52771da177e4SLinus Torvalds 52781da177e4SLinus Torvalds /* 52791da177e4SLinus Torvalds * Decode SYMLINK response 52801da177e4SLinus Torvalds */ 5281bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5282bf269551SChuck Lever struct nfs4_create_res *res) 52831da177e4SLinus Torvalds { 5284bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 52851da177e4SLinus Torvalds } 52861da177e4SLinus Torvalds 52871da177e4SLinus Torvalds /* 52881da177e4SLinus Torvalds * Decode GETATTR response 52891da177e4SLinus Torvalds */ 5290bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5291bf269551SChuck Lever struct nfs4_getattr_res *res) 52921da177e4SLinus Torvalds { 52931da177e4SLinus Torvalds struct compound_hdr hdr; 52941da177e4SLinus Torvalds int status; 52951da177e4SLinus Torvalds 5296bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52971da177e4SLinus Torvalds if (status) 52981da177e4SLinus Torvalds goto out; 5299bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53009b7b9fccSAndy Adamson if (status) 53019b7b9fccSAndy Adamson goto out; 5302bf269551SChuck Lever status = decode_putfh(xdr); 53031da177e4SLinus Torvalds if (status) 53041da177e4SLinus Torvalds goto out; 5305bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server, 530680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53071da177e4SLinus Torvalds out: 53081da177e4SLinus Torvalds return status; 53091da177e4SLinus Torvalds } 53101da177e4SLinus Torvalds 531123ec6965SJ. Bruce Fields /* 531223ec6965SJ. Bruce Fields * Encode an SETACL request 531323ec6965SJ. Bruce Fields */ 53149f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 53159f06c719SChuck Lever struct nfs_setaclargs *args) 531623ec6965SJ. Bruce Fields { 531723ec6965SJ. Bruce Fields struct compound_hdr hdr = { 531866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 531923ec6965SJ. Bruce Fields }; 532023ec6965SJ. Bruce Fields 53219f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 53229f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 53239f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 53249f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 5325d017931cSAndy Adamson encode_nops(&hdr); 532623ec6965SJ. Bruce Fields } 532705d564feSAndy Adamson 532823ec6965SJ. Bruce Fields /* 532923ec6965SJ. Bruce Fields * Decode SETACL response 533023ec6965SJ. Bruce Fields */ 533123ec6965SJ. Bruce Fields static int 5332bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 533373c403a9SBenny Halevy struct nfs_setaclres *res) 533423ec6965SJ. Bruce Fields { 533523ec6965SJ. Bruce Fields struct compound_hdr hdr; 533623ec6965SJ. Bruce Fields int status; 533723ec6965SJ. Bruce Fields 5338bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 533923ec6965SJ. Bruce Fields if (status) 534023ec6965SJ. Bruce Fields goto out; 5341bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53429b7b9fccSAndy Adamson if (status) 53439b7b9fccSAndy Adamson goto out; 5344bf269551SChuck Lever status = decode_putfh(xdr); 534523ec6965SJ. Bruce Fields if (status) 534623ec6965SJ. Bruce Fields goto out; 5347bf269551SChuck Lever status = decode_setattr(xdr); 534823ec6965SJ. Bruce Fields out: 534923ec6965SJ. Bruce Fields return status; 535023ec6965SJ. Bruce Fields } 53511da177e4SLinus Torvalds 53521da177e4SLinus Torvalds /* 5353029d105eSJ. Bruce Fields * Decode GETACL response 5354029d105eSJ. Bruce Fields */ 5355029d105eSJ. Bruce Fields static int 5356bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5357663c79b3SBenny Halevy struct nfs_getaclres *res) 5358029d105eSJ. Bruce Fields { 5359029d105eSJ. Bruce Fields struct compound_hdr hdr; 5360029d105eSJ. Bruce Fields int status; 5361029d105eSJ. Bruce Fields 5362bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5363029d105eSJ. Bruce Fields if (status) 5364029d105eSJ. Bruce Fields goto out; 5365bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53669b7b9fccSAndy Adamson if (status) 53679b7b9fccSAndy Adamson goto out; 5368bf269551SChuck Lever status = decode_putfh(xdr); 5369029d105eSJ. Bruce Fields if (status) 5370029d105eSJ. Bruce Fields goto out; 5371bf269551SChuck Lever status = decode_getacl(xdr, rqstp, &res->acl_len); 5372029d105eSJ. Bruce Fields 5373029d105eSJ. Bruce Fields out: 5374029d105eSJ. Bruce Fields return status; 5375029d105eSJ. Bruce Fields } 5376029d105eSJ. Bruce Fields 5377029d105eSJ. Bruce Fields /* 53781da177e4SLinus Torvalds * Decode CLOSE response 53791da177e4SLinus Torvalds */ 5380bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5381bf269551SChuck Lever struct nfs_closeres *res) 53821da177e4SLinus Torvalds { 53831da177e4SLinus Torvalds struct compound_hdr hdr; 53841da177e4SLinus Torvalds int status; 53851da177e4SLinus Torvalds 5386bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 53871da177e4SLinus Torvalds if (status) 53881da177e4SLinus Torvalds goto out; 5389bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53909b7b9fccSAndy Adamson if (status) 53919b7b9fccSAndy Adamson goto out; 5392bf269551SChuck Lever status = decode_putfh(xdr); 53931da177e4SLinus Torvalds if (status) 53941da177e4SLinus Torvalds goto out; 5395bf269551SChuck Lever status = decode_close(xdr, res); 5396516a6af6STrond Myklebust if (status != 0) 5397516a6af6STrond Myklebust goto out; 5398516a6af6STrond Myklebust /* 5399516a6af6STrond Myklebust * Note: Server may do delete on close for this file 5400516a6af6STrond Myklebust * in which case the getattr call will fail with 5401516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 5402516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 5403516a6af6STrond Myklebust */ 5404bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 540580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54061da177e4SLinus Torvalds out: 54071da177e4SLinus Torvalds return status; 54081da177e4SLinus Torvalds } 54091da177e4SLinus Torvalds 54101da177e4SLinus Torvalds /* 54111da177e4SLinus Torvalds * Decode OPEN response 54121da177e4SLinus Torvalds */ 5413bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5414bf269551SChuck Lever struct nfs_openres *res) 54151da177e4SLinus Torvalds { 54161da177e4SLinus Torvalds struct compound_hdr hdr; 54171da177e4SLinus Torvalds int status; 54181da177e4SLinus Torvalds 5419bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54201da177e4SLinus Torvalds if (status) 54211da177e4SLinus Torvalds goto out; 5422bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 54239b7b9fccSAndy Adamson if (status) 54249b7b9fccSAndy Adamson goto out; 5425bf269551SChuck Lever status = decode_putfh(xdr); 54261da177e4SLinus Torvalds if (status) 54271da177e4SLinus Torvalds goto out; 5428bf269551SChuck Lever status = decode_savefh(xdr); 542956ae19f3STrond Myklebust if (status) 543056ae19f3STrond Myklebust goto out; 5431bf269551SChuck Lever status = decode_open(xdr, res); 54321da177e4SLinus Torvalds if (status) 54331da177e4SLinus Torvalds goto out; 5434bf269551SChuck Lever if (decode_getfh(xdr, &res->fh) != 0) 54351da177e4SLinus Torvalds goto out; 5436bf269551SChuck Lever if (decode_getfattr(xdr, res->f_attr, res->server, 543780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 543856ae19f3STrond Myklebust goto out; 5439bf269551SChuck Lever if (decode_restorefh(xdr) != 0) 544056ae19f3STrond Myklebust goto out; 5441bf269551SChuck Lever decode_getfattr(xdr, res->dir_attr, res->server, 544280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54431da177e4SLinus Torvalds out: 54441da177e4SLinus Torvalds return status; 54451da177e4SLinus Torvalds } 54461da177e4SLinus Torvalds 54471da177e4SLinus Torvalds /* 54481da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 54491da177e4SLinus Torvalds */ 5450bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 5451bf269551SChuck Lever struct xdr_stream *xdr, 5452bf269551SChuck Lever struct nfs_open_confirmres *res) 54531da177e4SLinus Torvalds { 54541da177e4SLinus Torvalds struct compound_hdr hdr; 54551da177e4SLinus Torvalds int status; 54561da177e4SLinus Torvalds 5457bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54581da177e4SLinus Torvalds if (status) 54591da177e4SLinus Torvalds goto out; 5460bf269551SChuck Lever status = decode_putfh(xdr); 54611da177e4SLinus Torvalds if (status) 54621da177e4SLinus Torvalds goto out; 5463bf269551SChuck Lever status = decode_open_confirm(xdr, res); 54641da177e4SLinus Torvalds out: 54651da177e4SLinus Torvalds return status; 54661da177e4SLinus Torvalds } 54671da177e4SLinus Torvalds 54681da177e4SLinus Torvalds /* 54691da177e4SLinus Torvalds * Decode OPEN response 54701da177e4SLinus Torvalds */ 5471bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 5472bf269551SChuck Lever struct xdr_stream *xdr, 5473bf269551SChuck Lever struct nfs_openres *res) 54741da177e4SLinus Torvalds { 54751da177e4SLinus Torvalds struct compound_hdr hdr; 54761da177e4SLinus Torvalds int status; 54771da177e4SLinus Torvalds 5478bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54791da177e4SLinus Torvalds if (status) 54801da177e4SLinus Torvalds goto out; 5481bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 54829b7b9fccSAndy Adamson if (status) 54839b7b9fccSAndy Adamson goto out; 5484bf269551SChuck Lever status = decode_putfh(xdr); 54851da177e4SLinus Torvalds if (status) 54861da177e4SLinus Torvalds goto out; 5487bf269551SChuck Lever status = decode_open(xdr, res); 5488864472e9STrond Myklebust if (status) 5489864472e9STrond Myklebust goto out; 5490bf269551SChuck Lever decode_getfattr(xdr, res->f_attr, res->server, 549180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54921da177e4SLinus Torvalds out: 54931da177e4SLinus Torvalds return status; 54941da177e4SLinus Torvalds } 54951da177e4SLinus Torvalds 54961da177e4SLinus Torvalds /* 54971da177e4SLinus Torvalds * Decode SETATTR response 54981da177e4SLinus Torvalds */ 5499bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 5500bf269551SChuck Lever struct xdr_stream *xdr, 5501bf269551SChuck Lever struct nfs_setattrres *res) 55021da177e4SLinus Torvalds { 55031da177e4SLinus Torvalds struct compound_hdr hdr; 55041da177e4SLinus Torvalds int status; 55051da177e4SLinus Torvalds 5506bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55071da177e4SLinus Torvalds if (status) 55081da177e4SLinus Torvalds goto out; 5509bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55109b7b9fccSAndy Adamson if (status) 55119b7b9fccSAndy Adamson goto out; 5512bf269551SChuck Lever status = decode_putfh(xdr); 55131da177e4SLinus Torvalds if (status) 55141da177e4SLinus Torvalds goto out; 5515bf269551SChuck Lever status = decode_setattr(xdr); 55161da177e4SLinus Torvalds if (status) 55171da177e4SLinus Torvalds goto out; 5518bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 551980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 55201da177e4SLinus Torvalds out: 55211da177e4SLinus Torvalds return status; 55221da177e4SLinus Torvalds } 55231da177e4SLinus Torvalds 55241da177e4SLinus Torvalds /* 55251da177e4SLinus Torvalds * Decode LOCK response 55261da177e4SLinus Torvalds */ 5527bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5528bf269551SChuck Lever struct nfs_lock_res *res) 55291da177e4SLinus Torvalds { 55301da177e4SLinus Torvalds struct compound_hdr hdr; 55311da177e4SLinus Torvalds int status; 55321da177e4SLinus Torvalds 5533bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55341da177e4SLinus Torvalds if (status) 55351da177e4SLinus Torvalds goto out; 5536bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55379b7b9fccSAndy Adamson if (status) 55389b7b9fccSAndy Adamson goto out; 5539bf269551SChuck Lever status = decode_putfh(xdr); 55401da177e4SLinus Torvalds if (status) 55411da177e4SLinus Torvalds goto out; 5542bf269551SChuck Lever status = decode_lock(xdr, res); 55431da177e4SLinus Torvalds out: 55441da177e4SLinus Torvalds return status; 55451da177e4SLinus Torvalds } 55461da177e4SLinus Torvalds 55471da177e4SLinus Torvalds /* 55481da177e4SLinus Torvalds * Decode LOCKT response 55491da177e4SLinus Torvalds */ 5550bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5551bf269551SChuck Lever struct nfs_lockt_res *res) 55521da177e4SLinus Torvalds { 55531da177e4SLinus Torvalds struct compound_hdr hdr; 55541da177e4SLinus Torvalds int status; 55551da177e4SLinus Torvalds 5556bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55571da177e4SLinus Torvalds if (status) 55581da177e4SLinus Torvalds goto out; 5559bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55609b7b9fccSAndy Adamson if (status) 55619b7b9fccSAndy Adamson goto out; 5562bf269551SChuck Lever status = decode_putfh(xdr); 55631da177e4SLinus Torvalds if (status) 55641da177e4SLinus Torvalds goto out; 5565bf269551SChuck Lever status = decode_lockt(xdr, res); 55661da177e4SLinus Torvalds out: 55671da177e4SLinus Torvalds return status; 55681da177e4SLinus Torvalds } 55691da177e4SLinus Torvalds 55701da177e4SLinus Torvalds /* 55711da177e4SLinus Torvalds * Decode LOCKU response 55721da177e4SLinus Torvalds */ 5573bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5574bf269551SChuck Lever struct nfs_locku_res *res) 55751da177e4SLinus Torvalds { 55761da177e4SLinus Torvalds struct compound_hdr hdr; 55771da177e4SLinus Torvalds int status; 55781da177e4SLinus Torvalds 5579bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55801da177e4SLinus Torvalds if (status) 55811da177e4SLinus Torvalds goto out; 5582bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55839b7b9fccSAndy Adamson if (status) 55849b7b9fccSAndy Adamson goto out; 5585bf269551SChuck Lever status = decode_putfh(xdr); 55861da177e4SLinus Torvalds if (status) 55871da177e4SLinus Torvalds goto out; 5588bf269551SChuck Lever status = decode_locku(xdr, res); 55891da177e4SLinus Torvalds out: 55901da177e4SLinus Torvalds return status; 55911da177e4SLinus Torvalds } 55921da177e4SLinus Torvalds 5593bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 5594bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 5595d3c7b7ccSTrond Myklebust { 5596d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 5597d3c7b7ccSTrond Myklebust int status; 5598d3c7b7ccSTrond Myklebust 5599bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5600d3c7b7ccSTrond Myklebust if (!status) 5601bf269551SChuck Lever status = decode_release_lockowner(xdr); 5602d3c7b7ccSTrond Myklebust return status; 5603d3c7b7ccSTrond Myklebust } 5604d3c7b7ccSTrond Myklebust 56051da177e4SLinus Torvalds /* 56061da177e4SLinus Torvalds * Decode READLINK response 56071da177e4SLinus Torvalds */ 5608bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 5609bf269551SChuck Lever struct xdr_stream *xdr, 5610f50c7000SBenny Halevy struct nfs4_readlink_res *res) 56111da177e4SLinus Torvalds { 56121da177e4SLinus Torvalds struct compound_hdr hdr; 56131da177e4SLinus Torvalds int status; 56141da177e4SLinus Torvalds 5615bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56161da177e4SLinus Torvalds if (status) 56171da177e4SLinus Torvalds goto out; 5618bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56199b7b9fccSAndy Adamson if (status) 56209b7b9fccSAndy Adamson goto out; 5621bf269551SChuck Lever status = decode_putfh(xdr); 56221da177e4SLinus Torvalds if (status) 56231da177e4SLinus Torvalds goto out; 5624bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 56251da177e4SLinus Torvalds out: 56261da177e4SLinus Torvalds return status; 56271da177e4SLinus Torvalds } 56281da177e4SLinus Torvalds 56291da177e4SLinus Torvalds /* 56301da177e4SLinus Torvalds * Decode READDIR response 56311da177e4SLinus Torvalds */ 5632bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5633bf269551SChuck Lever struct nfs4_readdir_res *res) 56341da177e4SLinus Torvalds { 56351da177e4SLinus Torvalds struct compound_hdr hdr; 56361da177e4SLinus Torvalds int status; 56371da177e4SLinus Torvalds 5638bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56391da177e4SLinus Torvalds if (status) 56401da177e4SLinus Torvalds goto out; 5641bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56429b7b9fccSAndy Adamson if (status) 56439b7b9fccSAndy Adamson goto out; 5644bf269551SChuck Lever status = decode_putfh(xdr); 56451da177e4SLinus Torvalds if (status) 56461da177e4SLinus Torvalds goto out; 5647bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 56481da177e4SLinus Torvalds out: 56491da177e4SLinus Torvalds return status; 56501da177e4SLinus Torvalds } 56511da177e4SLinus Torvalds 56521da177e4SLinus Torvalds /* 56531da177e4SLinus Torvalds * Decode Read response 56541da177e4SLinus Torvalds */ 5655bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5656bf269551SChuck Lever struct nfs_readres *res) 56571da177e4SLinus Torvalds { 56581da177e4SLinus Torvalds struct compound_hdr hdr; 56591da177e4SLinus Torvalds int status; 56601da177e4SLinus Torvalds 5661bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56621da177e4SLinus Torvalds if (status) 56631da177e4SLinus Torvalds goto out; 5664bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56659b7b9fccSAndy Adamson if (status) 56669b7b9fccSAndy Adamson goto out; 5667bf269551SChuck Lever status = decode_putfh(xdr); 56681da177e4SLinus Torvalds if (status) 56691da177e4SLinus Torvalds goto out; 5670bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 56711da177e4SLinus Torvalds if (!status) 56721da177e4SLinus Torvalds status = res->count; 56731da177e4SLinus Torvalds out: 56741da177e4SLinus Torvalds return status; 56751da177e4SLinus Torvalds } 56761da177e4SLinus Torvalds 56771da177e4SLinus Torvalds /* 56781da177e4SLinus Torvalds * Decode WRITE response 56791da177e4SLinus Torvalds */ 5680bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5681bf269551SChuck Lever struct nfs_writeres *res) 56821da177e4SLinus Torvalds { 56831da177e4SLinus Torvalds struct compound_hdr hdr; 56841da177e4SLinus Torvalds int status; 56851da177e4SLinus Torvalds 5686bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56871da177e4SLinus Torvalds if (status) 56881da177e4SLinus Torvalds goto out; 5689bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56909b7b9fccSAndy Adamson if (status) 56919b7b9fccSAndy Adamson goto out; 5692bf269551SChuck Lever status = decode_putfh(xdr); 56931da177e4SLinus Torvalds if (status) 56941da177e4SLinus Torvalds goto out; 5695bf269551SChuck Lever status = decode_write(xdr, res); 56964f9838c7STrond Myklebust if (status) 56974f9838c7STrond Myklebust goto out; 56987ffd1064SFred Isaman if (res->fattr) 5699bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 570080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 57011da177e4SLinus Torvalds if (!status) 57021da177e4SLinus Torvalds status = res->count; 57031da177e4SLinus Torvalds out: 57041da177e4SLinus Torvalds return status; 57051da177e4SLinus Torvalds } 57061da177e4SLinus Torvalds 57071da177e4SLinus Torvalds /* 57081da177e4SLinus Torvalds * Decode COMMIT response 57091da177e4SLinus Torvalds */ 5710bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5711bf269551SChuck Lever struct nfs_writeres *res) 57121da177e4SLinus Torvalds { 57131da177e4SLinus Torvalds struct compound_hdr hdr; 57141da177e4SLinus Torvalds int status; 57151da177e4SLinus Torvalds 5716bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57171da177e4SLinus Torvalds if (status) 57181da177e4SLinus Torvalds goto out; 5719bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57209b7b9fccSAndy Adamson if (status) 57219b7b9fccSAndy Adamson goto out; 5722bf269551SChuck Lever status = decode_putfh(xdr); 57231da177e4SLinus Torvalds if (status) 57241da177e4SLinus Torvalds goto out; 5725bf269551SChuck Lever status = decode_commit(xdr, res); 57264f9838c7STrond Myklebust if (status) 57274f9838c7STrond Myklebust goto out; 5728bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 572980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 57301da177e4SLinus Torvalds out: 57311da177e4SLinus Torvalds return status; 57321da177e4SLinus Torvalds } 57331da177e4SLinus Torvalds 57341da177e4SLinus Torvalds /* 57358b173218SRicardo Labiaga * Decode FSINFO response 57361da177e4SLinus Torvalds */ 5737bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 57383dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 57391da177e4SLinus Torvalds { 57401da177e4SLinus Torvalds struct compound_hdr hdr; 57411da177e4SLinus Torvalds int status; 57421da177e4SLinus Torvalds 5743bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57441da177e4SLinus Torvalds if (!status) 5745bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57469b7b9fccSAndy Adamson if (!status) 5747bf269551SChuck Lever status = decode_putfh(xdr); 57481da177e4SLinus Torvalds if (!status) 5749bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 57501da177e4SLinus Torvalds return status; 57511da177e4SLinus Torvalds } 57521da177e4SLinus Torvalds 57531da177e4SLinus Torvalds /* 57548b173218SRicardo Labiaga * Decode PATHCONF response 57551da177e4SLinus Torvalds */ 5756bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 5757d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 57581da177e4SLinus Torvalds { 57591da177e4SLinus Torvalds struct compound_hdr hdr; 57601da177e4SLinus Torvalds int status; 57611da177e4SLinus Torvalds 5762bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57631da177e4SLinus Torvalds if (!status) 5764bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57659b7b9fccSAndy Adamson if (!status) 5766bf269551SChuck Lever status = decode_putfh(xdr); 57671da177e4SLinus Torvalds if (!status) 5768bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 57691da177e4SLinus Torvalds return status; 57701da177e4SLinus Torvalds } 57711da177e4SLinus Torvalds 57721da177e4SLinus Torvalds /* 57738b173218SRicardo Labiaga * Decode STATFS response 57741da177e4SLinus Torvalds */ 5775bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 577624ad148aSBenny Halevy struct nfs4_statfs_res *res) 57771da177e4SLinus Torvalds { 57781da177e4SLinus Torvalds struct compound_hdr hdr; 57791da177e4SLinus Torvalds int status; 57801da177e4SLinus Torvalds 5781bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57821da177e4SLinus Torvalds if (!status) 5783bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 57849b7b9fccSAndy Adamson if (!status) 5785bf269551SChuck Lever status = decode_putfh(xdr); 57861da177e4SLinus Torvalds if (!status) 5787bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 57881da177e4SLinus Torvalds return status; 57891da177e4SLinus Torvalds } 57901da177e4SLinus Torvalds 57911da177e4SLinus Torvalds /* 57928b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 57931da177e4SLinus Torvalds */ 5794bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 5795bf269551SChuck Lever struct xdr_stream *xdr, 5796bf269551SChuck Lever struct nfs4_server_caps_res *res) 57971da177e4SLinus Torvalds { 57981da177e4SLinus Torvalds struct compound_hdr hdr; 57991da177e4SLinus Torvalds int status; 58001da177e4SLinus Torvalds 5801bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58029b7b9fccSAndy Adamson if (status) 58039b7b9fccSAndy Adamson goto out; 5804bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 58059b7b9fccSAndy Adamson if (status) 58061da177e4SLinus Torvalds goto out; 5807bf269551SChuck Lever status = decode_putfh(xdr); 5808bf269551SChuck Lever if (status) 58091da177e4SLinus Torvalds goto out; 5810bf269551SChuck Lever status = decode_server_caps(xdr, res); 58111da177e4SLinus Torvalds out: 58121da177e4SLinus Torvalds return status; 58131da177e4SLinus Torvalds } 58141da177e4SLinus Torvalds 58151da177e4SLinus Torvalds /* 58161da177e4SLinus Torvalds * Decode RENEW response 58171da177e4SLinus Torvalds */ 5818bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5819bf269551SChuck Lever void *__unused) 58201da177e4SLinus Torvalds { 58211da177e4SLinus Torvalds struct compound_hdr hdr; 58221da177e4SLinus Torvalds int status; 58231da177e4SLinus Torvalds 5824bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58251da177e4SLinus Torvalds if (!status) 5826bf269551SChuck Lever status = decode_renew(xdr); 58271da177e4SLinus Torvalds return status; 58281da177e4SLinus Torvalds } 58291da177e4SLinus Torvalds 58301da177e4SLinus Torvalds /* 58318b173218SRicardo Labiaga * Decode SETCLIENTID response 58321da177e4SLinus Torvalds */ 5833bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 5834bf269551SChuck Lever struct xdr_stream *xdr, 5835bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 58361da177e4SLinus Torvalds { 58371da177e4SLinus Torvalds struct compound_hdr hdr; 58381da177e4SLinus Torvalds int status; 58391da177e4SLinus Torvalds 5840bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58411da177e4SLinus Torvalds if (!status) 5842bf269551SChuck Lever status = decode_setclientid(xdr, res); 58431da177e4SLinus Torvalds return status; 58441da177e4SLinus Torvalds } 58451da177e4SLinus Torvalds 58461da177e4SLinus Torvalds /* 58478b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 58481da177e4SLinus Torvalds */ 5849bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 5850bf269551SChuck Lever struct xdr_stream *xdr, 5851bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 58521da177e4SLinus Torvalds { 58531da177e4SLinus Torvalds struct compound_hdr hdr; 58541da177e4SLinus Torvalds int status; 58551da177e4SLinus Torvalds 5856bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58571da177e4SLinus Torvalds if (!status) 5858bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 58591da177e4SLinus Torvalds if (!status) 5860bf269551SChuck Lever status = decode_putrootfh(xdr); 58611da177e4SLinus Torvalds if (!status) 5862bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 58631da177e4SLinus Torvalds return status; 58641da177e4SLinus Torvalds } 58651da177e4SLinus Torvalds 58661da177e4SLinus Torvalds /* 58678b173218SRicardo Labiaga * Decode DELEGRETURN response 58681da177e4SLinus Torvalds */ 5869bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 5870bf269551SChuck Lever struct xdr_stream *xdr, 5871bf269551SChuck Lever struct nfs4_delegreturnres *res) 58721da177e4SLinus Torvalds { 58731da177e4SLinus Torvalds struct compound_hdr hdr; 58741da177e4SLinus Torvalds int status; 58751da177e4SLinus Torvalds 5876bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58779b7b9fccSAndy Adamson if (status) 58789b7b9fccSAndy Adamson goto out; 5879bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58809b7b9fccSAndy Adamson if (status) 5881fa178f29STrond Myklebust goto out; 5882bf269551SChuck Lever status = decode_putfh(xdr); 5883fa178f29STrond Myklebust if (status != 0) 5884fa178f29STrond Myklebust goto out; 5885bf269551SChuck Lever status = decode_delegreturn(xdr); 5886556ae3bbSJeff Layton if (status != 0) 5887556ae3bbSJeff Layton goto out; 5888bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 588980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 5890fa178f29STrond Myklebust out: 58911da177e4SLinus Torvalds return status; 58921da177e4SLinus Torvalds } 58931da177e4SLinus Torvalds 5894683b57b4STrond Myklebust /* 58958b173218SRicardo Labiaga * Decode FS_LOCATIONS response 5896683b57b4STrond Myklebust */ 5897bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 5898bf269551SChuck Lever struct xdr_stream *xdr, 589922958463SBenny Halevy struct nfs4_fs_locations_res *res) 5900683b57b4STrond Myklebust { 5901683b57b4STrond Myklebust struct compound_hdr hdr; 5902683b57b4STrond Myklebust int status; 5903683b57b4STrond Myklebust 5904bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59059b7b9fccSAndy Adamson if (status) 59069b7b9fccSAndy Adamson goto out; 5907bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 59089b7b9fccSAndy Adamson if (status) 5909683b57b4STrond Myklebust goto out; 5910bf269551SChuck Lever status = decode_putfh(xdr); 5911bf269551SChuck Lever if (status) 5912683b57b4STrond Myklebust goto out; 5913bf269551SChuck Lever status = decode_lookup(xdr); 5914bf269551SChuck Lever if (status) 5915683b57b4STrond Myklebust goto out; 5916bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 5917bf269551SChuck Lever status = decode_getfattr(xdr, &res->fs_locations->fattr, 591880e52aceSTrond Myklebust res->fs_locations->server, 591980e52aceSTrond Myklebust !RPC_IS_ASYNC(req->rq_task)); 5920683b57b4STrond Myklebust out: 5921683b57b4STrond Myklebust return status; 5922683b57b4STrond Myklebust } 5923683b57b4STrond Myklebust 592499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 592599fe60d0SBenny Halevy /* 59268b173218SRicardo Labiaga * Decode EXCHANGE_ID response 592799fe60d0SBenny Halevy */ 5928bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 5929bf269551SChuck Lever struct xdr_stream *xdr, 593099fe60d0SBenny Halevy void *res) 593199fe60d0SBenny Halevy { 593299fe60d0SBenny Halevy struct compound_hdr hdr; 593399fe60d0SBenny Halevy int status; 593499fe60d0SBenny Halevy 5935bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 593699fe60d0SBenny Halevy if (!status) 5937bf269551SChuck Lever status = decode_exchange_id(xdr, res); 593899fe60d0SBenny Halevy return status; 593999fe60d0SBenny Halevy } 59402050f0ccSAndy Adamson 59412050f0ccSAndy Adamson /* 59428b173218SRicardo Labiaga * Decode CREATE_SESSION response 5943fc931582SAndy Adamson */ 5944bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 5945bf269551SChuck Lever struct xdr_stream *xdr, 5946fc931582SAndy Adamson struct nfs41_create_session_res *res) 5947fc931582SAndy Adamson { 5948fc931582SAndy Adamson struct compound_hdr hdr; 5949fc931582SAndy Adamson int status; 5950fc931582SAndy Adamson 5951bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5952fc931582SAndy Adamson if (!status) 5953bf269551SChuck Lever status = decode_create_session(xdr, res); 5954fc931582SAndy Adamson return status; 5955fc931582SAndy Adamson } 5956fc931582SAndy Adamson 5957fc931582SAndy Adamson /* 59588b173218SRicardo Labiaga * Decode DESTROY_SESSION response 59590f3e66c6SAndy Adamson */ 5960bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 5961bf269551SChuck Lever struct xdr_stream *xdr, 5962bf269551SChuck Lever void *res) 59630f3e66c6SAndy Adamson { 59640f3e66c6SAndy Adamson struct compound_hdr hdr; 59650f3e66c6SAndy Adamson int status; 59660f3e66c6SAndy Adamson 5967bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59680f3e66c6SAndy Adamson if (!status) 5969bf269551SChuck Lever status = decode_destroy_session(xdr, res); 59700f3e66c6SAndy Adamson return status; 59710f3e66c6SAndy Adamson } 59720f3e66c6SAndy Adamson 59730f3e66c6SAndy Adamson /* 59748b173218SRicardo Labiaga * Decode SEQUENCE response 5975fc01cea9SAndy Adamson */ 5976bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 5977bf269551SChuck Lever struct xdr_stream *xdr, 5978fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5979fc01cea9SAndy Adamson { 5980fc01cea9SAndy Adamson struct compound_hdr hdr; 5981fc01cea9SAndy Adamson int status; 5982fc01cea9SAndy Adamson 5983bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5984fc01cea9SAndy Adamson if (!status) 5985bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 5986fc01cea9SAndy Adamson return status; 5987fc01cea9SAndy Adamson } 5988fc01cea9SAndy Adamson 5989fc01cea9SAndy Adamson /* 59908b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 59912050f0ccSAndy Adamson */ 5992bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 5993bf269551SChuck Lever struct xdr_stream *xdr, 59942050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 59952050f0ccSAndy Adamson { 59962050f0ccSAndy Adamson struct compound_hdr hdr; 59972050f0ccSAndy Adamson int status; 59982050f0ccSAndy Adamson 5999bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60002050f0ccSAndy Adamson if (!status) 6001bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 60022050f0ccSAndy Adamson if (!status) 6003bf269551SChuck Lever status = decode_putrootfh(xdr); 60042050f0ccSAndy Adamson if (!status) 6005bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 60062050f0ccSAndy Adamson return status; 60072050f0ccSAndy Adamson } 600818019753SRicardo Labiaga 600918019753SRicardo Labiaga /* 601018019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 601118019753SRicardo Labiaga */ 6012bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6013bf269551SChuck Lever struct xdr_stream *xdr, 601418019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 601518019753SRicardo Labiaga { 601618019753SRicardo Labiaga struct compound_hdr hdr; 601718019753SRicardo Labiaga int status; 601818019753SRicardo Labiaga 6019bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 602018019753SRicardo Labiaga if (!status) 6021bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 602218019753SRicardo Labiaga if (!status) 6023bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 602418019753SRicardo Labiaga return status; 602518019753SRicardo Labiaga } 6026b1f69b75SAndy Adamson 6027b1f69b75SAndy Adamson /* 6028b1f69b75SAndy Adamson * Decode GETDEVINFO response 6029b1f69b75SAndy Adamson */ 6030bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6031bf269551SChuck Lever struct xdr_stream *xdr, 6032b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6033b1f69b75SAndy Adamson { 6034b1f69b75SAndy Adamson struct compound_hdr hdr; 6035b1f69b75SAndy Adamson int status; 6036b1f69b75SAndy Adamson 6037bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6038b1f69b75SAndy Adamson if (status != 0) 6039b1f69b75SAndy Adamson goto out; 6040bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6041b1f69b75SAndy Adamson if (status != 0) 6042b1f69b75SAndy Adamson goto out; 6043bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6044b1f69b75SAndy Adamson out: 6045b1f69b75SAndy Adamson return status; 6046b1f69b75SAndy Adamson } 6047b1f69b75SAndy Adamson 6048b1f69b75SAndy Adamson /* 6049b1f69b75SAndy Adamson * Decode LAYOUTGET response 6050b1f69b75SAndy Adamson */ 6051bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6052bf269551SChuck Lever struct xdr_stream *xdr, 6053b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6054b1f69b75SAndy Adamson { 6055b1f69b75SAndy Adamson struct compound_hdr hdr; 6056b1f69b75SAndy Adamson int status; 6057b1f69b75SAndy Adamson 6058bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6059b1f69b75SAndy Adamson if (status) 6060b1f69b75SAndy Adamson goto out; 6061bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6062b1f69b75SAndy Adamson if (status) 6063b1f69b75SAndy Adamson goto out; 6064bf269551SChuck Lever status = decode_putfh(xdr); 6065b1f69b75SAndy Adamson if (status) 6066b1f69b75SAndy Adamson goto out; 6067bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6068b1f69b75SAndy Adamson out: 6069b1f69b75SAndy Adamson return status; 6070b1f69b75SAndy Adamson } 607199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 607299fe60d0SBenny Halevy 6073573c4e1eSChuck Lever /** 6074573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 6075573c4e1eSChuck Lever * the local page cache. 6076573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 6077573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 6078573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 6079573c4e1eSChuck Lever * 6080573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 6081573c4e1eSChuck Lever * returned. 6082573c4e1eSChuck Lever * 6083573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 6084573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 6085573c4e1eSChuck Lever * on a directory already in our cache. 6086573c4e1eSChuck Lever */ 6087573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 6088573c4e1eSChuck Lever int plus) 60891da177e4SLinus Torvalds { 60901da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 60911da177e4SLinus Torvalds uint32_t len; 6092babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 6093babddc72SBryan Schumaker if (unlikely(!p)) 6094babddc72SBryan Schumaker goto out_overflow; 6095c08e76d0SChuck Lever if (*p == xdr_zero) { 6096babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 6097babddc72SBryan Schumaker if (unlikely(!p)) 6098babddc72SBryan Schumaker goto out_overflow; 6099c08e76d0SChuck Lever if (*p == xdr_zero) 6100573c4e1eSChuck Lever return -EAGAIN; 61011da177e4SLinus Torvalds entry->eof = 1; 6102573c4e1eSChuck Lever return -EBADCOOKIE; 61031da177e4SLinus Torvalds } 61041da177e4SLinus Torvalds 6105babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 6106babddc72SBryan Schumaker if (unlikely(!p)) 6107babddc72SBryan Schumaker goto out_overflow; 61081da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 61091da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 6110c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 6111babddc72SBryan Schumaker 61129af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 6113babddc72SBryan Schumaker if (unlikely(!p)) 6114babddc72SBryan Schumaker goto out_overflow; 61151da177e4SLinus Torvalds entry->name = (const char *) p; 61161da177e4SLinus Torvalds 61171da177e4SLinus Torvalds /* 61181da177e4SLinus Torvalds * In case the server doesn't return an inode number, 61191da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 61201da177e4SLinus Torvalds * since glibc seems to choke on it...) 61211da177e4SLinus Torvalds */ 61221da177e4SLinus Torvalds entry->ino = 1; 61234f082222STrond Myklebust entry->fattr->valid = 0; 61241da177e4SLinus Torvalds 61259af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 6126babddc72SBryan Schumaker goto out_overflow; 61279af8c222STrond Myklebust 61289af8c222STrond Myklebust if (decode_attr_length(xdr, &len, &p) < 0) 6129babddc72SBryan Schumaker goto out_overflow; 61309af8c222STrond Myklebust 6131573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 6132573c4e1eSChuck Lever entry->server, 1) < 0) 6133babddc72SBryan Schumaker goto out_overflow; 613482f2e547SBryan Schumaker if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 613582f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 61369af8c222STrond Myklebust 61370b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 61380b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 61390b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 61400b26a0bfSTrond Myklebust 6141573c4e1eSChuck Lever return 0; 6142babddc72SBryan Schumaker 6143babddc72SBryan Schumaker out_overflow: 6144babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 6145573c4e1eSChuck Lever return -EAGAIN; 61461da177e4SLinus Torvalds } 61471da177e4SLinus Torvalds 61481da177e4SLinus Torvalds /* 61491da177e4SLinus Torvalds * We need to translate between nfs status return values and 61501da177e4SLinus Torvalds * the local errno values which may not be the same. 61511da177e4SLinus Torvalds */ 61521da177e4SLinus Torvalds static struct { 61531da177e4SLinus Torvalds int stat; 61541da177e4SLinus Torvalds int errno; 61551da177e4SLinus Torvalds } nfs_errtbl[] = { 61561da177e4SLinus Torvalds { NFS4_OK, 0 }, 6157856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 6158856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 6159856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 6160856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 6161856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 6162856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 6163856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 6164856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 6165856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 6166856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 6167856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 6168856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 6169856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 6170856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 6171856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 6172856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 6173856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 6174856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 6175856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 6176856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 6177856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 6178856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 6179856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 6180856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 6181fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 6182856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 6183856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 6184856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 6185856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 6186856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 6187856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 61881da177e4SLinus Torvalds * to be handled by a 61891da177e4SLinus Torvalds * middle-layer. 61901da177e4SLinus Torvalds */ 6191856dff3dSBenny Halevy { -1, -EIO } 61921da177e4SLinus Torvalds }; 61931da177e4SLinus Torvalds 61941da177e4SLinus Torvalds /* 61951da177e4SLinus Torvalds * Convert an NFS error code to a local one. 61961da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 61971da177e4SLinus Torvalds */ 61981da177e4SLinus Torvalds static int 61990a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 62001da177e4SLinus Torvalds { 62011da177e4SLinus Torvalds int i; 62021da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 62031da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 62041da177e4SLinus Torvalds return nfs_errtbl[i].errno; 62051da177e4SLinus Torvalds } 62061da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 62071da177e4SLinus Torvalds /* The server is looney tunes. */ 6208fdcb4577STrond Myklebust return -EREMOTEIO; 62091da177e4SLinus Torvalds } 62101da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 62111da177e4SLinus Torvalds * handle it. 62121da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 62131da177e4SLinus Torvalds * not conflict with native Linux error codes. 62141da177e4SLinus Torvalds */ 6215856dff3dSBenny Halevy return -stat; 62161da177e4SLinus Torvalds } 62171da177e4SLinus Torvalds 62181da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 62191da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 62201da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 62219f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 6222bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 62232bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 62242bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 6225cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 6226cc0175c1SChuck Lever .p_name = #proc, \ 62271da177e4SLinus Torvalds } 62281da177e4SLinus Torvalds 62291da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 62301da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 62311da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 62321da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 62331da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 62341da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 62351da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 62361da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 62371da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 62381da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 62391da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 62401da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 62411da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 62421da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 62431da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 62441da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 62451da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 62461da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 62471da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 62481da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 62491da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 62501da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 62511da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 62521da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 62531da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 62541da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 62551da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 62561da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 62571da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 62581da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 62591da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 62601da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 6261029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 626223ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 6263683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 6264d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 626599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 626699fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 6267fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 62680f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 6269fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 62702050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 627118019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 6272b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 6273b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 627499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 62751da177e4SLinus Torvalds }; 62761da177e4SLinus Torvalds 62771da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 62781da177e4SLinus Torvalds .number = 4, 6279e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 62801da177e4SLinus Torvalds .procs = nfs4_procedures 62811da177e4SLinus Torvalds }; 62821da177e4SLinus Torvalds 62831da177e4SLinus Torvalds /* 62841da177e4SLinus Torvalds * Local variables: 62851da177e4SLinus Torvalds * c-basic-offset: 8 62861da177e4SLinus Torvalds * End: 62871da177e4SLinus Torvalds */ 6288