11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * fs/nfs/nfs4xdr.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side XDR for NFSv4. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2002 The Regents of the University of Michigan. 71da177e4SLinus Torvalds * All rights reserved. 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Kendrick Smith <kmsmith@umich.edu> 101da177e4SLinus Torvalds * Andy Adamson <andros@umich.edu> 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4SLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4SLinus Torvalds * are met: 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * 1. Redistributions of source code must retain the above copyright 171da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer. 181da177e4SLinus Torvalds * 2. Redistributions in binary form must reproduce the above copyright 191da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer in the 201da177e4SLinus Torvalds * documentation and/or other materials provided with the distribution. 211da177e4SLinus Torvalds * 3. Neither the name of the University nor the names of its 221da177e4SLinus Torvalds * contributors may be used to endorse or promote products derived 231da177e4SLinus Torvalds * from this software without specific prior written permission. 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 261da177e4SLinus Torvalds * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 271da177e4SLinus Torvalds * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 281da177e4SLinus Torvalds * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291da177e4SLinus Torvalds * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 301da177e4SLinus Torvalds * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 311da177e4SLinus Torvalds * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 321da177e4SLinus Torvalds * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 331da177e4SLinus Torvalds * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 341da177e4SLinus Torvalds * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 351da177e4SLinus Torvalds * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361da177e4SLinus Torvalds */ 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #include <linux/param.h> 391da177e4SLinus Torvalds #include <linux/time.h> 401da177e4SLinus Torvalds #include <linux/mm.h> 411da177e4SLinus Torvalds #include <linux/errno.h> 421da177e4SLinus Torvalds #include <linux/string.h> 431da177e4SLinus Torvalds #include <linux/in.h> 441da177e4SLinus Torvalds #include <linux/pagemap.h> 451da177e4SLinus Torvalds #include <linux/proc_fs.h> 461da177e4SLinus Torvalds #include <linux/kdev_t.h> 471da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 482449ea2eSAlexandros Batsakis #include <linux/sunrpc/msg_prot.h> 491da177e4SLinus Torvalds #include <linux/nfs.h> 501da177e4SLinus Torvalds #include <linux/nfs4.h> 511da177e4SLinus Torvalds #include <linux/nfs_fs.h> 521da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 534ce79717STrond Myklebust #include "nfs4_fs.h" 544882ef72SAlexandros Batsakis #include "internal.h" 55b1f69b75SAndy Adamson #include "pnfs.h" 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 601da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 611da177e4SLinus Torvalds 620a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 651da177e4SLinus Torvalds #ifdef DEBUG 661da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 671da177e4SLinus Torvalds #else 681da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 691da177e4SLinus Torvalds #endif 701da177e4SLinus Torvalds 711da177e4SLinus Torvalds /* lock,open owner id: 729f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 731da177e4SLinus Torvalds */ 749f958ab8STrond Myklebust #define open_owner_id_maxsz (1 + 4) 759f958ab8STrond Myklebust #define lock_owner_id_maxsz (1 + 4) 769104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 771da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 781da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 791da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 801da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 819104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 829104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 839104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 849104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 851da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 861da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 871da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 881da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 891da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 901da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 911da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 921da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9396928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9496928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 951da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 961da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 97bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 98bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 9996928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 10096928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 101bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10296928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10396928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10496928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1059104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1069104a55dSTrond Myklebust 1 + 2 + 1 + \ 1079104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1089104a55dSTrond Myklebust nfs4_group_maxsz + \ 1099104a55dSTrond Myklebust 4 + 4) 1101da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1111da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11256ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11356ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1142f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1151da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1161da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1171da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1181da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1191da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 120cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 121cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 122cc38bac3SChuck Lever 1 /* sc_prog */ + \ 123cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 124cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 125cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1261da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1271da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1281da177e4SLinus Torvalds 2 + \ 1291da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1301da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1311da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1321da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1331da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1341da177e4SLinus Torvalds (op_decode_hdr_maxsz) 135e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 136e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1372cebf828STrond Myklebust #define encode_share_access_maxsz \ 1382cebf828STrond Myklebust (2) 1394882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1402cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1412cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1422cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1432cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1442cebf828STrond Myklebust open_owner_id_maxsz + \ 1452cebf828STrond Myklebust encode_opentype_maxsz + \ 1462cebf828STrond Myklebust encode_claim_null_maxsz) 1472cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1489104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1492cebf828STrond Myklebust decode_ace_maxsz) 1502cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1512cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1529104a55dSTrond Myklebust decode_stateid_maxsz + \ 1532cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1542cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1552cebf828STrond Myklebust decode_delegation_maxsz) 1569104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1579104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1589104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1599104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1609104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1619104a55dSTrond Myklebust decode_stateid_maxsz) 1629104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1639104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1649104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1659104a55dSTrond Myklebust encode_share_access_maxsz) 1669104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1679104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1689104a55dSTrond Myklebust decode_stateid_maxsz) 1699104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1709104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1719104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1729104a55dSTrond Myklebust decode_stateid_maxsz) 1739104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1749104a55dSTrond Myklebust encode_stateid_maxsz + \ 1759104a55dSTrond Myklebust encode_attrs_maxsz) 1769104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1779104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1789104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1799104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1809104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1819104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1829104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1839104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1849104a55dSTrond Myklebust decode_verifier_maxsz) 1859104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1869104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1879104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1889104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1899104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1909104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1919104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1929104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1939104a55dSTrond Myklebust decode_verifier_maxsz) 1941da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1951da177e4SLinus Torvalds nfs4_name_maxsz) 1966ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 1976ce18391SBenny Halevy decode_change_info_maxsz) 1981da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1991da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2006ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2016ce18391SBenny Halevy decode_change_info_maxsz + \ 2026ce18391SBenny Halevy decode_change_info_maxsz) 2031da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2041da177e4SLinus Torvalds nfs4_name_maxsz) 2056ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 206daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2079104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2089104a55dSTrond Myklebust 7 + \ 209daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 210daccbdedSTrond Myklebust encode_lockowner_maxsz) 2119104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2129104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2139104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2149104a55dSTrond Myklebust decode_lock_denied_maxsz) 215daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 216daccbdedSTrond Myklebust encode_lockowner_maxsz) 2179104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2189104a55dSTrond Myklebust decode_lock_denied_maxsz) 2199104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2209104a55dSTrond Myklebust encode_stateid_maxsz + \ 2219104a55dSTrond Myklebust 4) 2229104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2239104a55dSTrond Myklebust decode_stateid_maxsz) 224d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 225d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 226d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 227d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 228d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2299104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2309104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2311da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2321da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 23394a6d753SChuck Lever 1 + \ 23496928206SJ. Bruce Fields nfs4_fattr_maxsz) 2351da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2361da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2379104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2389104a55dSTrond Myklebust encode_attrs_maxsz) 2392cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2402cebf828STrond Myklebust decode_change_info_maxsz + \ 2412cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2429104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2439104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2441da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2451da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2469104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2479104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2489104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2499104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2509104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2519104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 252e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 253e6889620STrond Myklebust (encode_getattr_maxsz) 254e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 255e6889620STrond Myklebust (0) 2569b7b9fccSAndy Adamson 2579b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 258fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 259fc931582SAndy Adamson 26099fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 26199fe60d0SBenny Halevy encode_verifier_maxsz + \ 26299fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 26399fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 26499fe60d0SBenny Halevy 1 /* flags */ + \ 26599fe60d0SBenny Halevy 1 /* spa_how */ + \ 26699fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 26799fe60d0SBenny Halevy 1 /* zero implemetation id array */) 26899fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 26999fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 27099fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 27199fe60d0SBenny Halevy 1 /* eir_flags */ + \ 27299fe60d0SBenny Halevy 1 /* spr_how */ + \ 27399fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 27499fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 27599fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 27699fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27799fe60d0SBenny Halevy /* eir_server_scope<> */ \ 27899fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27999fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 28099fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 281fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 282fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 283fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 284fc931582SAndy Adamson 1 /* ca_rdma_ird */) 285fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 286fc931582SAndy Adamson 2 /* csa_clientid */ + \ 287fc931582SAndy Adamson 1 /* csa_sequence */ + \ 288fc931582SAndy Adamson 1 /* csa_flags */ + \ 289fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 290fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 291fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 292fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 293fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 294fc931582SAndy Adamson 1 /* stamp */ + \ 295fc931582SAndy Adamson 1 /* machinename.len */ + \ 296fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 297fc931582SAndy Adamson 1 /* uid */ + \ 298fc931582SAndy Adamson 1 /* gid */ + \ 299fc931582SAndy Adamson 1 /* gids.len (0) */) 300fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 301fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 302fc931582SAndy Adamson 1 /* csr_sequence */ + \ 303fc931582SAndy Adamson 1 /* csr_flags */ + \ 304fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 305fc931582SAndy Adamson decode_channel_attrs_maxsz) 3060f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3070f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 308fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 309fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 310fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 311fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 31218019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 31318019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 314b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 315b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 316b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 317b1f69b75SAndy Adamson 1 /* layout type */ + \ 318b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 319b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 320b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 321b1f69b75SAndy Adamson 1 /* notification bitmap */) 322b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 323b1f69b75SAndy Adamson encode_stateid_maxsz) 324b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 325b1f69b75SAndy Adamson decode_stateid_maxsz + \ 326b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 3279b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3289b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3299b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3309b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3319b7b9fccSAndy Adamson 3321da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3331da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3341da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3361da177e4SLinus Torvalds encode_putfh_maxsz + \ 3379104a55dSTrond Myklebust encode_read_maxsz) 3381da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3401da177e4SLinus Torvalds decode_putfh_maxsz + \ 3419104a55dSTrond Myklebust decode_read_maxsz) 3421da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3441da177e4SLinus Torvalds encode_putfh_maxsz + \ 3459104a55dSTrond Myklebust encode_readlink_maxsz) 3461da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3479b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3481da177e4SLinus Torvalds decode_putfh_maxsz + \ 3499104a55dSTrond Myklebust decode_readlink_maxsz) 3501da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3519b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3521da177e4SLinus Torvalds encode_putfh_maxsz + \ 3539104a55dSTrond Myklebust encode_readdir_maxsz) 3541da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3559b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3561da177e4SLinus Torvalds decode_putfh_maxsz + \ 3579104a55dSTrond Myklebust decode_readdir_maxsz) 3581da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3599b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3601da177e4SLinus Torvalds encode_putfh_maxsz + \ 3619104a55dSTrond Myklebust encode_write_maxsz + \ 3624f9838c7STrond Myklebust encode_getattr_maxsz) 3631da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3651da177e4SLinus Torvalds decode_putfh_maxsz + \ 3669104a55dSTrond Myklebust decode_write_maxsz + \ 3674f9838c7STrond Myklebust decode_getattr_maxsz) 3681da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3701da177e4SLinus Torvalds encode_putfh_maxsz + \ 3719104a55dSTrond Myklebust encode_commit_maxsz + \ 3724f9838c7STrond Myklebust encode_getattr_maxsz) 3731da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3749b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3751da177e4SLinus Torvalds decode_putfh_maxsz + \ 3769104a55dSTrond Myklebust decode_commit_maxsz + \ 3774f9838c7STrond Myklebust decode_getattr_maxsz) 3781da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3799b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3801da177e4SLinus Torvalds encode_putfh_maxsz + \ 3812cebf828STrond Myklebust encode_savefh_maxsz + \ 3822cebf828STrond Myklebust encode_open_maxsz + \ 3832cebf828STrond Myklebust encode_getfh_maxsz + \ 3841da177e4SLinus Torvalds encode_getattr_maxsz + \ 3852cebf828STrond Myklebust encode_restorefh_maxsz + \ 3862cebf828STrond Myklebust encode_getattr_maxsz) 3871da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 3889b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3891da177e4SLinus Torvalds decode_putfh_maxsz + \ 3902cebf828STrond Myklebust decode_savefh_maxsz + \ 3912cebf828STrond Myklebust decode_open_maxsz + \ 3922cebf828STrond Myklebust decode_getfh_maxsz + \ 3931da177e4SLinus Torvalds decode_getattr_maxsz + \ 3942cebf828STrond Myklebust decode_restorefh_maxsz + \ 3952cebf828STrond Myklebust decode_getattr_maxsz) 3961da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3971da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3981da177e4SLinus Torvalds encode_putfh_maxsz + \ 3999104a55dSTrond Myklebust encode_open_confirm_maxsz) 4009104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4019104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4021da177e4SLinus Torvalds decode_putfh_maxsz + \ 4039104a55dSTrond Myklebust decode_open_confirm_maxsz) 4041da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4061da177e4SLinus Torvalds encode_putfh_maxsz + \ 4072cebf828STrond Myklebust encode_open_maxsz + \ 4082cebf828STrond Myklebust encode_getattr_maxsz) 4091da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4109b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4111da177e4SLinus Torvalds decode_putfh_maxsz + \ 4122cebf828STrond Myklebust decode_open_maxsz + \ 4132cebf828STrond Myklebust decode_getattr_maxsz) 4141da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4151da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4171da177e4SLinus Torvalds encode_putfh_maxsz + \ 4189104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 419516a6af6STrond Myklebust encode_getattr_maxsz) 4201da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4211da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4229b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4231da177e4SLinus Torvalds decode_putfh_maxsz + \ 4249104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 425516a6af6STrond Myklebust decode_getattr_maxsz) 4261da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4279b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4281da177e4SLinus Torvalds encode_putfh_maxsz + \ 4299104a55dSTrond Myklebust encode_close_maxsz + \ 430516a6af6STrond Myklebust encode_getattr_maxsz) 4311da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4331da177e4SLinus Torvalds decode_putfh_maxsz + \ 4349104a55dSTrond Myklebust decode_close_maxsz + \ 435516a6af6STrond Myklebust decode_getattr_maxsz) 4361da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4379b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4381da177e4SLinus Torvalds encode_putfh_maxsz + \ 4399104a55dSTrond Myklebust encode_setattr_maxsz + \ 4401da177e4SLinus Torvalds encode_getattr_maxsz) 4411da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4429b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4431da177e4SLinus Torvalds decode_putfh_maxsz + \ 4449104a55dSTrond Myklebust decode_setattr_maxsz + \ 4459104a55dSTrond Myklebust decode_getattr_maxsz) 4461da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4479b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4481da177e4SLinus Torvalds encode_putfh_maxsz + \ 4491da177e4SLinus Torvalds encode_fsinfo_maxsz) 4501da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4519b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4521da177e4SLinus Torvalds decode_putfh_maxsz + \ 4531da177e4SLinus Torvalds decode_fsinfo_maxsz) 4541da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4551da177e4SLinus Torvalds encode_renew_maxsz) 4561da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4571da177e4SLinus Torvalds decode_renew_maxsz) 4581da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4591da177e4SLinus Torvalds encode_setclientid_maxsz) 4601da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4611da177e4SLinus Torvalds decode_setclientid_maxsz) 4621da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4631da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4641da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4651da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4661da177e4SLinus Torvalds encode_fsinfo_maxsz) 4671da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4681da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4691da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4701da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4711da177e4SLinus Torvalds decode_fsinfo_maxsz) 4721da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4739b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4741da177e4SLinus Torvalds encode_putfh_maxsz + \ 4759104a55dSTrond Myklebust encode_lock_maxsz) 4761da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4781da177e4SLinus Torvalds decode_putfh_maxsz + \ 4799104a55dSTrond Myklebust decode_lock_maxsz) 4801da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4821da177e4SLinus Torvalds encode_putfh_maxsz + \ 4839104a55dSTrond Myklebust encode_lockt_maxsz) 4849104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 4859b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4869104a55dSTrond Myklebust decode_putfh_maxsz + \ 4879104a55dSTrond Myklebust decode_lockt_maxsz) 4881da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 4899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4901da177e4SLinus Torvalds encode_putfh_maxsz + \ 4919104a55dSTrond Myklebust encode_locku_maxsz) 4921da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 4939b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4941da177e4SLinus Torvalds decode_putfh_maxsz + \ 4959104a55dSTrond Myklebust decode_locku_maxsz) 496d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 497d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 498d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 499d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 500d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 501d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5021da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5041da177e4SLinus Torvalds encode_putfh_maxsz + \ 50576b32999STrond Myklebust encode_access_maxsz + \ 50676b32999STrond Myklebust encode_getattr_maxsz) 5071da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5091da177e4SLinus Torvalds decode_putfh_maxsz + \ 51076b32999STrond Myklebust decode_access_maxsz + \ 51176b32999STrond Myklebust decode_getattr_maxsz) 5121da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5141da177e4SLinus Torvalds encode_putfh_maxsz + \ 5151da177e4SLinus Torvalds encode_getattr_maxsz) 5161da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5179b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5181da177e4SLinus Torvalds decode_putfh_maxsz + \ 5191da177e4SLinus Torvalds decode_getattr_maxsz) 5201da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5221da177e4SLinus Torvalds encode_putfh_maxsz + \ 5231da177e4SLinus Torvalds encode_lookup_maxsz + \ 5241da177e4SLinus Torvalds encode_getattr_maxsz + \ 5251da177e4SLinus Torvalds encode_getfh_maxsz) 5261da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5281da177e4SLinus Torvalds decode_putfh_maxsz + \ 529e6889620STrond Myklebust decode_lookup_maxsz + \ 5301da177e4SLinus Torvalds decode_getattr_maxsz + \ 5311da177e4SLinus Torvalds decode_getfh_maxsz) 5321da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5341da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5351da177e4SLinus Torvalds encode_getattr_maxsz + \ 5361da177e4SLinus Torvalds encode_getfh_maxsz) 5371da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5389b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5391da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5401da177e4SLinus Torvalds decode_getattr_maxsz + \ 5411da177e4SLinus Torvalds decode_getfh_maxsz) 5421da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5441da177e4SLinus Torvalds encode_putfh_maxsz + \ 54516e42959STrond Myklebust encode_remove_maxsz + \ 54616e42959STrond Myklebust encode_getattr_maxsz) 5471da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5491da177e4SLinus Torvalds decode_putfh_maxsz + \ 5506ce18391SBenny Halevy decode_remove_maxsz + \ 55116e42959STrond Myklebust decode_getattr_maxsz) 5521da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5539b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5541da177e4SLinus Torvalds encode_putfh_maxsz + \ 5551da177e4SLinus Torvalds encode_savefh_maxsz + \ 5561da177e4SLinus Torvalds encode_putfh_maxsz + \ 5576caf2c82STrond Myklebust encode_rename_maxsz + \ 5586caf2c82STrond Myklebust encode_getattr_maxsz + \ 5596caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5606caf2c82STrond Myklebust encode_getattr_maxsz) 5611da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5629b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5631da177e4SLinus Torvalds decode_putfh_maxsz + \ 5641da177e4SLinus Torvalds decode_savefh_maxsz + \ 5651da177e4SLinus Torvalds decode_putfh_maxsz + \ 5666caf2c82STrond Myklebust decode_rename_maxsz + \ 5676caf2c82STrond Myklebust decode_getattr_maxsz + \ 5686caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5696caf2c82STrond Myklebust decode_getattr_maxsz) 5701da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5721da177e4SLinus Torvalds encode_putfh_maxsz + \ 5731da177e4SLinus Torvalds encode_savefh_maxsz + \ 5741da177e4SLinus Torvalds encode_putfh_maxsz + \ 57591ba2eeeSTrond Myklebust encode_link_maxsz + \ 57691ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 57791ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 57891ba2eeeSTrond Myklebust decode_getattr_maxsz) 5791da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5811da177e4SLinus Torvalds decode_putfh_maxsz + \ 5821da177e4SLinus Torvalds decode_savefh_maxsz + \ 5831da177e4SLinus Torvalds decode_putfh_maxsz + \ 58491ba2eeeSTrond Myklebust decode_link_maxsz + \ 58591ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 58691ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 58791ba2eeeSTrond Myklebust decode_getattr_maxsz) 5881da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 5899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5901da177e4SLinus Torvalds encode_putfh_maxsz + \ 5911da177e4SLinus Torvalds encode_symlink_maxsz + \ 5921da177e4SLinus Torvalds encode_getattr_maxsz + \ 5931da177e4SLinus Torvalds encode_getfh_maxsz) 5941da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 5959b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5961da177e4SLinus Torvalds decode_putfh_maxsz + \ 5971da177e4SLinus Torvalds decode_symlink_maxsz + \ 5981da177e4SLinus Torvalds decode_getattr_maxsz + \ 5991da177e4SLinus Torvalds decode_getfh_maxsz) 6001da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6021da177e4SLinus Torvalds encode_putfh_maxsz + \ 60356ae19f3STrond Myklebust encode_savefh_maxsz + \ 6041da177e4SLinus Torvalds encode_create_maxsz + \ 60556ae19f3STrond Myklebust encode_getfh_maxsz + \ 6061da177e4SLinus Torvalds encode_getattr_maxsz + \ 60756ae19f3STrond Myklebust encode_restorefh_maxsz + \ 60856ae19f3STrond Myklebust encode_getattr_maxsz) 6091da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6109b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6111da177e4SLinus Torvalds decode_putfh_maxsz + \ 61256ae19f3STrond Myklebust decode_savefh_maxsz + \ 6131da177e4SLinus Torvalds decode_create_maxsz + \ 61456ae19f3STrond Myklebust decode_getfh_maxsz + \ 6151da177e4SLinus Torvalds decode_getattr_maxsz + \ 61656ae19f3STrond Myklebust decode_restorefh_maxsz + \ 61756ae19f3STrond Myklebust decode_getattr_maxsz) 6181da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6199b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6201da177e4SLinus Torvalds encode_putfh_maxsz + \ 6211da177e4SLinus Torvalds encode_getattr_maxsz) 6221da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6241da177e4SLinus Torvalds decode_putfh_maxsz + \ 6251da177e4SLinus Torvalds decode_getattr_maxsz) 6261da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6279b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6281da177e4SLinus Torvalds encode_putfh_maxsz + \ 6299104a55dSTrond Myklebust encode_statfs_maxsz) 6301da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6319b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6321da177e4SLinus Torvalds decode_putfh_maxsz + \ 6339104a55dSTrond Myklebust decode_statfs_maxsz) 6341da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 636ab91f264STrond Myklebust encode_putfh_maxsz + \ 6371da177e4SLinus Torvalds encode_getattr_maxsz) 6381da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6399b7b9fccSAndy Adamson decode_sequence_maxsz + \ 640ab91f264STrond Myklebust decode_putfh_maxsz + \ 6411da177e4SLinus Torvalds decode_getattr_maxsz) 6421da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6441da177e4SLinus Torvalds encode_putfh_maxsz + \ 645fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 646fa178f29STrond Myklebust encode_getattr_maxsz) 6471da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 649fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 650fa178f29STrond Myklebust decode_getattr_maxsz) 651029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6529b7b9fccSAndy Adamson encode_sequence_maxsz + \ 653029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6549104a55dSTrond Myklebust encode_getacl_maxsz) 655029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6569b7b9fccSAndy Adamson decode_sequence_maxsz + \ 657029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6589104a55dSTrond Myklebust decode_getacl_maxsz) 65923ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6609b7b9fccSAndy Adamson encode_sequence_maxsz + \ 66123ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6629104a55dSTrond Myklebust encode_setacl_maxsz) 66323ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 66523ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6669104a55dSTrond Myklebust decode_setacl_maxsz) 667683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 668683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 670683b57b4STrond Myklebust encode_putfh_maxsz + \ 671e6889620STrond Myklebust encode_lookup_maxsz + \ 672e6889620STrond Myklebust encode_fs_locations_maxsz) 673683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 674683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6759b7b9fccSAndy Adamson decode_sequence_maxsz + \ 676683b57b4STrond Myklebust decode_putfh_maxsz + \ 677e6889620STrond Myklebust decode_lookup_maxsz + \ 678e6889620STrond Myklebust decode_fs_locations_maxsz) 67999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 68099fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 68199fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 68299fe60d0SBenny Halevy encode_exchange_id_maxsz) 68399fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 68499fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 68599fe60d0SBenny Halevy decode_exchange_id_maxsz) 686fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 687fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 688fc931582SAndy Adamson encode_create_session_maxsz) 689fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 690fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 691fc931582SAndy Adamson decode_create_session_maxsz) 6920f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 6930f3e66c6SAndy Adamson encode_destroy_session_maxsz) 6940f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 6950f3e66c6SAndy Adamson decode_destroy_session_maxsz) 696fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 697fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 698fc01cea9SAndy Adamson encode_sequence_maxsz) 699fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 700fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 701fc01cea9SAndy Adamson decode_sequence_maxsz) 7022050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7032050f0ccSAndy Adamson encode_sequence_maxsz + \ 7042050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7052050f0ccSAndy Adamson encode_fsinfo_maxsz) 7062050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7072050f0ccSAndy Adamson decode_sequence_maxsz + \ 7082050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7092050f0ccSAndy Adamson decode_fsinfo_maxsz) 71018019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 71118019753SRicardo Labiaga encode_sequence_maxsz + \ 71218019753SRicardo Labiaga encode_reclaim_complete_maxsz) 71318019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 71418019753SRicardo Labiaga decode_sequence_maxsz + \ 71518019753SRicardo Labiaga decode_reclaim_complete_maxsz) 716b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 717b1f69b75SAndy Adamson encode_sequence_maxsz +\ 718b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 719b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 720b1f69b75SAndy Adamson decode_sequence_maxsz + \ 721b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 722b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 723b1f69b75SAndy Adamson encode_sequence_maxsz + \ 724b1f69b75SAndy Adamson encode_putfh_maxsz + \ 725b1f69b75SAndy Adamson encode_layoutget_maxsz) 726b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 727b1f69b75SAndy Adamson decode_sequence_maxsz + \ 728b1f69b75SAndy Adamson decode_putfh_maxsz + \ 729b1f69b75SAndy Adamson decode_layoutget_maxsz) 7302449ea2eSAlexandros Batsakis 7312449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 7322449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 7332449ea2eSAlexandros Batsakis encode_sequence_maxsz + 7342449ea2eSAlexandros Batsakis encode_putfh_maxsz + 7352449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 7362449ea2eSAlexandros Batsakis XDR_UNIT); 7372449ea2eSAlexandros Batsakis 7382449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 7392449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 7402449ea2eSAlexandros Batsakis decode_sequence_maxsz + 7412449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 7422449ea2eSAlexandros Batsakis XDR_UNIT); 74399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 7441da177e4SLinus Torvalds 745bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 746bca79478STrond Myklebust [NF4BAD] = 0, 747bca79478STrond Myklebust [NF4REG] = S_IFREG, 748bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 749bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 750bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 751bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 752bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 753bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 754bca79478STrond Myklebust [NF4ATTRDIR] = 0, 755bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 7561da177e4SLinus Torvalds }; 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds struct compound_hdr { 7591da177e4SLinus Torvalds int32_t status; 7601da177e4SLinus Torvalds uint32_t nops; 761d017931cSAndy Adamson __be32 * nops_p; 7621da177e4SLinus Torvalds uint32_t taglen; 7631da177e4SLinus Torvalds char * tag; 7640c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 76566cc0429SBenny Halevy u32 minorversion; 7661da177e4SLinus Torvalds }; 7671da177e4SLinus Torvalds 76813c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 76913c65ce9SBenny Halevy { 77013c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 77113c65ce9SBenny Halevy BUG_ON(!p); 77213c65ce9SBenny Halevy return p; 77313c65ce9SBenny Halevy } 7741da177e4SLinus Torvalds 7751da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7761da177e4SLinus Torvalds { 7778687b63aSAl Viro __be32 *p; 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7801da177e4SLinus Torvalds BUG_ON(p == NULL); 7811da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7821da177e4SLinus Torvalds } 7831da177e4SLinus Torvalds 7840c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7850c4e8c18SBenny Halevy struct rpc_rqst *req, 7860c4e8c18SBenny Halevy struct compound_hdr *hdr) 7871da177e4SLinus Torvalds { 7888687b63aSAl Viro __be32 *p; 789a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 7900c4e8c18SBenny Halevy 7910c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7920c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7930c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7940c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7971da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 798811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 799811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 800e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 801d017931cSAndy Adamson hdr->nops_p = p; 80234558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 803d017931cSAndy Adamson } 804d017931cSAndy Adamson 805d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 806d017931cSAndy Adamson { 807fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 808d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 8091da177e4SLinus Torvalds } 8101da177e4SLinus Torvalds 8111da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 8121da177e4SLinus Torvalds { 8138687b63aSAl Viro __be32 *p; 8141da177e4SLinus Torvalds 8151da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 8161da177e4SLinus Torvalds BUG_ON(p == NULL); 8171da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 8181da177e4SLinus Torvalds } 8191da177e4SLinus Torvalds 820cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 8211da177e4SLinus Torvalds { 8221da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 8231da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 8241da177e4SLinus Torvalds int owner_namelen = 0; 8251da177e4SLinus Torvalds int owner_grouplen = 0; 8268687b63aSAl Viro __be32 *p; 8278687b63aSAl Viro __be32 *q; 8281da177e4SLinus Torvalds int len; 8291da177e4SLinus Torvalds uint32_t bmval0 = 0; 8301da177e4SLinus Torvalds uint32_t bmval1 = 0; 8311da177e4SLinus Torvalds 8321da177e4SLinus Torvalds /* 8331da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 8341da177e4SLinus Torvalds * In the worst-case, this would be 8351da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 8361da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 83723ec6965SJ. Bruce Fields * such as owner/group. 8381da177e4SLinus Torvalds */ 8391da177e4SLinus Torvalds len = 16; 8401da177e4SLinus Torvalds 8411da177e4SLinus Torvalds /* Sigh */ 8421da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 8431da177e4SLinus Torvalds len += 8; 8441da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 8451da177e4SLinus Torvalds len += 4; 8461da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 847955a857eSBryan Schumaker owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name, IDMAP_NAMESZ); 8481da177e4SLinus Torvalds if (owner_namelen < 0) { 849fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 8501da177e4SLinus Torvalds iap->ia_uid); 8511da177e4SLinus Torvalds /* XXX */ 8521da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 8531da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8541da177e4SLinus Torvalds /* goto out; */ 8551da177e4SLinus Torvalds } 8561da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8571da177e4SLinus Torvalds } 8581da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 859955a857eSBryan Schumaker owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group, IDMAP_NAMESZ); 8601da177e4SLinus Torvalds if (owner_grouplen < 0) { 861fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8621da177e4SLinus Torvalds iap->ia_gid); 8631da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8641da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8651da177e4SLinus Torvalds /* goto out; */ 8661da177e4SLinus Torvalds } 8671da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8681da177e4SLinus Torvalds } 8691da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8701da177e4SLinus Torvalds len += 16; 8711da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8721da177e4SLinus Torvalds len += 4; 8731da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8741da177e4SLinus Torvalds len += 16; 8751da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8761da177e4SLinus Torvalds len += 4; 87713c65ce9SBenny Halevy p = reserve_space(xdr, len); 8781da177e4SLinus Torvalds 8791da177e4SLinus Torvalds /* 8801da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8811da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8821da177e4SLinus Torvalds */ 883e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 8841da177e4SLinus Torvalds q = p; 8851da177e4SLinus Torvalds p += 3; 8861da177e4SLinus Torvalds 8871da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8881da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 889b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 8901da177e4SLinus Torvalds } 8911da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8921da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 893e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 8941da177e4SLinus Torvalds } 8951da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8961da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 897811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 8981da177e4SLinus Torvalds } 8991da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 9001da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 901811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 9021da177e4SLinus Torvalds } 9031da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 9041da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 905e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 906e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 907d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 908d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 9091da177e4SLinus Torvalds } 9101da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 9111da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 912e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 9131da177e4SLinus Torvalds } 9141da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 9151da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 916e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 917e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 918e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 919e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 9201da177e4SLinus Torvalds } 9211da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 9221da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 923e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds 9261da177e4SLinus Torvalds /* 9271da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 9281da177e4SLinus Torvalds */ 9291da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 930fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 9311da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 9321da177e4SLinus Torvalds BUG(); 9331da177e4SLinus Torvalds } 9341da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 9351da177e4SLinus Torvalds *q++ = htonl(bmval0); 9361da177e4SLinus Torvalds *q++ = htonl(bmval1); 93734558513SBenny Halevy *q = htonl(len); 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds /* out: */ 9401da177e4SLinus Torvalds } 9411da177e4SLinus Torvalds 942cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 9431da177e4SLinus Torvalds { 9448687b63aSAl Viro __be32 *p; 9451da177e4SLinus Torvalds 94613c65ce9SBenny Halevy p = reserve_space(xdr, 8); 947e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 94834558513SBenny Halevy *p = cpu_to_be32(access); 949d017931cSAndy Adamson hdr->nops++; 950dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 9511da177e4SLinus Torvalds } 9521da177e4SLinus Torvalds 953cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9541da177e4SLinus Torvalds { 9558687b63aSAl Viro __be32 *p; 9561da177e4SLinus Torvalds 95713c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 958e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 959e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 96034558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 961d017931cSAndy Adamson hdr->nops++; 962dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9631da177e4SLinus Torvalds } 9641da177e4SLinus Torvalds 965cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9661da177e4SLinus Torvalds { 9678687b63aSAl Viro __be32 *p; 9681da177e4SLinus Torvalds 96913c65ce9SBenny Halevy p = reserve_space(xdr, 16); 970e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 971b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 97234558513SBenny Halevy *p = cpu_to_be32(args->count); 973d017931cSAndy Adamson hdr->nops++; 974dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9751da177e4SLinus Torvalds } 9761da177e4SLinus Torvalds 977cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9781da177e4SLinus Torvalds { 9798687b63aSAl Viro __be32 *p; 9801da177e4SLinus Torvalds 98113c65ce9SBenny Halevy p = reserve_space(xdr, 8); 982e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 98334558513SBenny Halevy *p = cpu_to_be32(create->ftype); 9841da177e4SLinus Torvalds 9851da177e4SLinus Torvalds switch (create->ftype) { 9861da177e4SLinus Torvalds case NF4LNK: 98713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 98834558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 98994a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9901da177e4SLinus Torvalds break; 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 99313c65ce9SBenny Halevy p = reserve_space(xdr, 8); 994e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 99534558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 9961da177e4SLinus Torvalds break; 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds default: 9991da177e4SLinus Torvalds break; 10001da177e4SLinus Torvalds } 10011da177e4SLinus Torvalds 1002811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1003d017931cSAndy Adamson hdr->nops++; 1004dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 10051da177e4SLinus Torvalds 1006cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 10071da177e4SLinus Torvalds } 10081da177e4SLinus Torvalds 1009cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 10101da177e4SLinus Torvalds { 10118687b63aSAl Viro __be32 *p; 10121da177e4SLinus Torvalds 101313c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1014e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1015e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 101634558513SBenny Halevy *p = cpu_to_be32(bitmap); 1017d017931cSAndy Adamson hdr->nops++; 1018dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 10191da177e4SLinus Torvalds } 10201da177e4SLinus Torvalds 1021cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 10221da177e4SLinus Torvalds { 10238687b63aSAl Viro __be32 *p; 10241da177e4SLinus Torvalds 102513c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1026e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1027e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1028e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 102934558513SBenny Halevy *p = cpu_to_be32(bm1); 1030d017931cSAndy Adamson hdr->nops++; 1031dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 10321da177e4SLinus Torvalds } 10331da177e4SLinus Torvalds 1034cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10351da177e4SLinus Torvalds { 1036cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1037d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 10381da177e4SLinus Torvalds } 10391da177e4SLinus Torvalds 1040cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10411da177e4SLinus Torvalds { 1042cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 1043d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 10441da177e4SLinus Torvalds } 10451da177e4SLinus Torvalds 1046cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1047830b8e33SManoj Naik { 1048cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1049cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1050830b8e33SManoj Naik } 1051830b8e33SManoj Naik 1052cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10531da177e4SLinus Torvalds { 10548687b63aSAl Viro __be32 *p; 10551da177e4SLinus Torvalds 105613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 105734558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1058d017931cSAndy Adamson hdr->nops++; 1059dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10601da177e4SLinus Torvalds } 10611da177e4SLinus Torvalds 1062cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10631da177e4SLinus Torvalds { 10648687b63aSAl Viro __be32 *p; 10651da177e4SLinus Torvalds 106613c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1067e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1068811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1069d017931cSAndy Adamson hdr->nops++; 1070dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10711da177e4SLinus Torvalds } 10721da177e4SLinus Torvalds 1073911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1074911d1aafSTrond Myklebust { 1075911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1076911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1077911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1078911d1aafSTrond Myklebust } 1079911d1aafSTrond Myklebust 1080911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1081911d1aafSTrond Myklebust { 1082911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1083911d1aafSTrond Myklebust return ~(uint64_t)0; 1084911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1085911d1aafSTrond Myklebust } 1086911d1aafSTrond Myklebust 1087daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1088daccbdedSTrond Myklebust { 1089daccbdedSTrond Myklebust __be32 *p; 1090daccbdedSTrond Myklebust 1091daccbdedSTrond Myklebust p = reserve_space(xdr, 28); 1092daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1093daccbdedSTrond Myklebust *p++ = cpu_to_be32(16); 1094daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1095daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1096daccbdedSTrond Myklebust } 1097daccbdedSTrond Myklebust 10981da177e4SLinus Torvalds /* 10991da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 11001da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 11011da177e4SLinus Torvalds */ 1102cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 11031da177e4SLinus Torvalds { 11048687b63aSAl Viro __be32 *p; 11051da177e4SLinus Torvalds 110613c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1107e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1108e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1109e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1110b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1111b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 111234558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1113911d1aafSTrond Myklebust if (args->new_lock_owner){ 1114daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1115e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 111693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1117e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1118daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 11191da177e4SLinus Torvalds } 11201da177e4SLinus Torvalds else { 112113c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 112293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 112334558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 11241da177e4SLinus Torvalds } 1125d017931cSAndy Adamson hdr->nops++; 1126dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 11271da177e4SLinus Torvalds } 11281da177e4SLinus Torvalds 1129cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 11301da177e4SLinus Torvalds { 11318687b63aSAl Viro __be32 *p; 11321da177e4SLinus Torvalds 1133daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1134e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1135e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1136b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1137b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1138daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1139d017931cSAndy Adamson hdr->nops++; 1140dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 11411da177e4SLinus Torvalds } 11421da177e4SLinus Torvalds 1143cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 11441da177e4SLinus Torvalds { 11458687b63aSAl Viro __be32 *p; 11461da177e4SLinus Torvalds 114713c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1148e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1149e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1150e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 115193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1152b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 115334558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1154d017931cSAndy Adamson hdr->nops++; 1155dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11561da177e4SLinus Torvalds } 11571da177e4SLinus Torvalds 1158d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1159d3c7b7ccSTrond Myklebust { 1160d3c7b7ccSTrond Myklebust __be32 *p; 1161d3c7b7ccSTrond Myklebust 1162d3c7b7ccSTrond Myklebust p = reserve_space(xdr, 4); 1163d3c7b7ccSTrond Myklebust *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); 1164d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1165d3c7b7ccSTrond Myklebust hdr->nops++; 1166d3c7b7ccSTrond Myklebust hdr->replen += decode_release_lockowner_maxsz; 1167d3c7b7ccSTrond Myklebust } 1168d3c7b7ccSTrond Myklebust 1169cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11701da177e4SLinus Torvalds { 11711da177e4SLinus Torvalds int len = name->len; 11728687b63aSAl Viro __be32 *p; 11731da177e4SLinus Torvalds 117413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1175e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1176811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1177d017931cSAndy Adamson hdr->nops++; 1178dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11791da177e4SLinus Torvalds } 11801da177e4SLinus Torvalds 1181dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11821da177e4SLinus Torvalds { 11838687b63aSAl Viro __be32 *p; 11841da177e4SLinus Torvalds 118513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1186dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11871da177e4SLinus Torvalds case FMODE_READ: 1188e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11891da177e4SLinus Torvalds break; 11901da177e4SLinus Torvalds case FMODE_WRITE: 1191e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11921da177e4SLinus Torvalds break; 11931da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1194e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11951da177e4SLinus Torvalds break; 11961da177e4SLinus Torvalds default: 1197e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11981da177e4SLinus Torvalds } 119934558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 12001da177e4SLinus Torvalds } 12011da177e4SLinus Torvalds 12021da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12031da177e4SLinus Torvalds { 12048687b63aSAl Viro __be32 *p; 12051da177e4SLinus Torvalds /* 12061da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 12071da177e4SLinus Torvalds * owner 4 = 32 12081da177e4SLinus Torvalds */ 120913c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1210e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 121134558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1212dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 121313c65ce9SBenny Halevy p = reserve_space(xdr, 28); 1214b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1215e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 121693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 121734558513SBenny Halevy xdr_encode_hyper(p, arg->id); 12181da177e4SLinus Torvalds } 12191da177e4SLinus Torvalds 12201da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12211da177e4SLinus Torvalds { 12228687b63aSAl Viro __be32 *p; 12234882ef72SAlexandros Batsakis struct nfs_client *clp; 12241da177e4SLinus Torvalds 122513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12261da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 12271da177e4SLinus Torvalds case 0: 122834558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 12291da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 12301da177e4SLinus Torvalds break; 12311da177e4SLinus Torvalds default: 12324882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1233a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 12344882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 12354882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 12364882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 12374882ef72SAlexandros Batsakis } else { 12384882ef72SAlexandros Batsakis struct iattr dummy; 12394882ef72SAlexandros Batsakis 12404882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 12414882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 12424882ef72SAlexandros Batsakis dummy.ia_valid = 0; 12434882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 12444882ef72SAlexandros Batsakis } 12454882ef72SAlexandros Batsakis } else { 124634558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 12471da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 12481da177e4SLinus Torvalds } 12491da177e4SLinus Torvalds } 12504882ef72SAlexandros Batsakis } 12511da177e4SLinus Torvalds 12521da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12531da177e4SLinus Torvalds { 12548687b63aSAl Viro __be32 *p; 12551da177e4SLinus Torvalds 125613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12571da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 12581da177e4SLinus Torvalds case 0: 125934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 12601da177e4SLinus Torvalds break; 12611da177e4SLinus Torvalds default: 12621da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 126334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 12641da177e4SLinus Torvalds encode_createmode(xdr, arg); 12651da177e4SLinus Torvalds } 12661da177e4SLinus Torvalds } 12671da177e4SLinus Torvalds 1268bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 12691da177e4SLinus Torvalds { 12708687b63aSAl Viro __be32 *p; 12711da177e4SLinus Torvalds 127213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12731da177e4SLinus Torvalds switch (delegation_type) { 12741da177e4SLinus Torvalds case 0: 127534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 12761da177e4SLinus Torvalds break; 12771da177e4SLinus Torvalds case FMODE_READ: 127834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 12791da177e4SLinus Torvalds break; 12801da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 128134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 12821da177e4SLinus Torvalds break; 12831da177e4SLinus Torvalds default: 12841da177e4SLinus Torvalds BUG(); 12851da177e4SLinus Torvalds } 12861da177e4SLinus Torvalds } 12871da177e4SLinus Torvalds 12881da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12891da177e4SLinus Torvalds { 12908687b63aSAl Viro __be32 *p; 12911da177e4SLinus Torvalds 129213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 129334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 12941da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12951da177e4SLinus Torvalds } 12961da177e4SLinus Torvalds 1297bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12981da177e4SLinus Torvalds { 12998687b63aSAl Viro __be32 *p; 13001da177e4SLinus Torvalds 130113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 130234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 13031da177e4SLinus Torvalds encode_delegation_type(xdr, type); 13041da177e4SLinus Torvalds } 13051da177e4SLinus Torvalds 13061da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 13071da177e4SLinus Torvalds { 13088687b63aSAl Viro __be32 *p; 13091da177e4SLinus Torvalds 131013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1311e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 131234558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 13131da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 13141da177e4SLinus Torvalds } 13151da177e4SLinus Torvalds 1316cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 13171da177e4SLinus Torvalds { 13181da177e4SLinus Torvalds encode_openhdr(xdr, arg); 13191da177e4SLinus Torvalds encode_opentype(xdr, arg); 13201da177e4SLinus Torvalds switch (arg->claim) { 13211da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 13221da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 13231da177e4SLinus Torvalds break; 13241da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 13251da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 13261da177e4SLinus Torvalds break; 13271da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 13281da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 13291da177e4SLinus Torvalds break; 13301da177e4SLinus Torvalds default: 13311da177e4SLinus Torvalds BUG(); 13321da177e4SLinus Torvalds } 1333d017931cSAndy Adamson hdr->nops++; 1334dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 13351da177e4SLinus Torvalds } 13361da177e4SLinus Torvalds 1337cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 13381da177e4SLinus Torvalds { 13398687b63aSAl Viro __be32 *p; 13401da177e4SLinus Torvalds 134113c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1342e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 134393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 134434558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1345d017931cSAndy Adamson hdr->nops++; 1346dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 13471da177e4SLinus Torvalds } 13481da177e4SLinus Torvalds 1349cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 13501da177e4SLinus Torvalds { 13518687b63aSAl Viro __be32 *p; 13521da177e4SLinus Torvalds 135313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1354e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 135593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 135634558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1357dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1358d017931cSAndy Adamson hdr->nops++; 1359dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 13601da177e4SLinus Torvalds } 13611da177e4SLinus Torvalds 1362cf8cdbe5SAndy Adamson static void 1363d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 13641da177e4SLinus Torvalds { 13651da177e4SLinus Torvalds int len = fh->size; 13668687b63aSAl Viro __be32 *p; 13671da177e4SLinus Torvalds 136813c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1369e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1370811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1371d017931cSAndy Adamson hdr->nops++; 1372dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 13731da177e4SLinus Torvalds } 13741da177e4SLinus Torvalds 1375cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 13761da177e4SLinus Torvalds { 13778687b63aSAl Viro __be32 *p; 13781da177e4SLinus Torvalds 137913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 138034558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1381d017931cSAndy Adamson hdr->nops++; 1382dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13831da177e4SLinus Torvalds } 13841da177e4SLinus Torvalds 1385f11ac8dbSTrond Myklebust static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx) 13861da177e4SLinus Torvalds { 13871da177e4SLinus Torvalds nfs4_stateid stateid; 13888687b63aSAl Viro __be32 *p; 13891da177e4SLinus Torvalds 139013c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 13911da177e4SLinus Torvalds if (ctx->state != NULL) { 139277041ed9STrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); 139334558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 13941da177e4SLinus Torvalds } else 139534558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 13961da177e4SLinus Torvalds } 13971da177e4SLinus Torvalds 1398cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13991da177e4SLinus Torvalds { 14008687b63aSAl Viro __be32 *p; 14011da177e4SLinus Torvalds 140213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 140334558513SBenny Halevy *p = cpu_to_be32(OP_READ); 14041da177e4SLinus Torvalds 1405f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 14061da177e4SLinus Torvalds 140713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1408b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 140934558513SBenny Halevy *p = cpu_to_be32(args->count); 1410d017931cSAndy Adamson hdr->nops++; 1411dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 14121da177e4SLinus Torvalds } 14131da177e4SLinus Torvalds 1414cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 14151da177e4SLinus Torvalds { 141682f2e547SBryan Schumaker uint32_t attrs[2] = {0, 0}; 14176f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 14188687b63aSAl Viro __be32 *p; 14191da177e4SLinus Torvalds 142082f2e547SBryan Schumaker if (readdir->plus) { 142182f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 142282f2e547SBryan Schumaker FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE; 142382f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 142482f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 142582f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 142682f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 14276f7a35bdSTrond Myklebust dircount >>= 1; 142882f2e547SBryan Schumaker } 142982f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID; 143082f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MOUNTED_ON_FILEID; 143197d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 143297d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 143397d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 143497d312d0SManoj Naik else 143597d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 14366f7a35bdSTrond Myklebust 14376f7a35bdSTrond Myklebust p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 14386f7a35bdSTrond Myklebust *p++ = cpu_to_be32(OP_READDIR); 14396f7a35bdSTrond Myklebust p = xdr_encode_hyper(p, readdir->cookie); 14406f7a35bdSTrond Myklebust p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 14416f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 14426f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 14436f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 144482f2e547SBryan Schumaker 1445e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 144634558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1447d017931cSAndy Adamson hdr->nops++; 1448dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 144944109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 145044109241SFred Isaman __func__, 1451eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1452eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1453eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1454eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1455eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 14561da177e4SLinus Torvalds } 14571da177e4SLinus Torvalds 1458cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 14591da177e4SLinus Torvalds { 14608687b63aSAl Viro __be32 *p; 14611da177e4SLinus Torvalds 146213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146334558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1464d017931cSAndy Adamson hdr->nops++; 1465dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 14661da177e4SLinus Torvalds } 14671da177e4SLinus Torvalds 1468cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 14691da177e4SLinus Torvalds { 14708687b63aSAl Viro __be32 *p; 14711da177e4SLinus Torvalds 147213c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1473e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1474811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1475d017931cSAndy Adamson hdr->nops++; 1476dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 14771da177e4SLinus Torvalds } 14781da177e4SLinus Torvalds 1479cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 14801da177e4SLinus Torvalds { 14818687b63aSAl Viro __be32 *p; 14821da177e4SLinus Torvalds 1483811652bdSBenny Halevy p = reserve_space(xdr, 4); 1484811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1485811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1486811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1487d017931cSAndy Adamson hdr->nops++; 1488dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14891da177e4SLinus Torvalds } 14901da177e4SLinus Torvalds 1491cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14921da177e4SLinus Torvalds { 14938687b63aSAl Viro __be32 *p; 14941da177e4SLinus Torvalds 149513c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1496e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 149734558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1498d017931cSAndy Adamson hdr->nops++; 1499dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 15001da177e4SLinus Torvalds } 15011da177e4SLinus Torvalds 1502cf8cdbe5SAndy Adamson static void 1503d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 150456ae19f3STrond Myklebust { 15058687b63aSAl Viro __be32 *p; 150656ae19f3STrond Myklebust 150713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 150834558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1509d017931cSAndy Adamson hdr->nops++; 1510dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 151156ae19f3STrond Myklebust } 151256ae19f3STrond Myklebust 151356ae19f3STrond Myklebust static int 1514d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 151523ec6965SJ. Bruce Fields { 15168687b63aSAl Viro __be32 *p; 151723ec6965SJ. Bruce Fields 151813c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1519e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 152034558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 152113c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1522e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 152334558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 152423ec6965SJ. Bruce Fields if (arg->acl_len % 4) 152523ec6965SJ. Bruce Fields return -EINVAL; 152613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 152734558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 152823ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1529d017931cSAndy Adamson hdr->nops++; 1530dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 153123ec6965SJ. Bruce Fields return 0; 153223ec6965SJ. Bruce Fields } 153323ec6965SJ. Bruce Fields 1534cf8cdbe5SAndy Adamson static void 1535d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15361da177e4SLinus Torvalds { 15378687b63aSAl Viro __be32 *p; 15381da177e4SLinus Torvalds 153913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 154034558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1541d017931cSAndy Adamson hdr->nops++; 1542dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 15431da177e4SLinus Torvalds } 15441da177e4SLinus Torvalds 1545cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 15461da177e4SLinus Torvalds { 15478687b63aSAl Viro __be32 *p; 15481da177e4SLinus Torvalds 154913c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1550e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 155134558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1552d017931cSAndy Adamson hdr->nops++; 1553dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1554cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 15551da177e4SLinus Torvalds } 15561da177e4SLinus Torvalds 1557cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 15581da177e4SLinus Torvalds { 15598687b63aSAl Viro __be32 *p; 15601da177e4SLinus Torvalds 156113c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1562e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 156334558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 15641da177e4SLinus Torvalds 15651da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 156613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 156734558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 15681da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 15691da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 157013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 157134558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1572d017931cSAndy Adamson hdr->nops++; 1573dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 15741da177e4SLinus Torvalds } 15751da177e4SLinus Torvalds 1576bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 15771da177e4SLinus Torvalds { 15788687b63aSAl Viro __be32 *p; 15791da177e4SLinus Torvalds 158013c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1581e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1582bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1583bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1584d017931cSAndy Adamson hdr->nops++; 1585dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15861da177e4SLinus Torvalds } 15871da177e4SLinus Torvalds 1588cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15891da177e4SLinus Torvalds { 15908687b63aSAl Viro __be32 *p; 15911da177e4SLinus Torvalds 159213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 159334558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 15941da177e4SLinus Torvalds 1595f11ac8dbSTrond Myklebust encode_stateid(xdr, args->context, args->lock_context); 15961da177e4SLinus Torvalds 159713c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1598b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1599e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 160034558513SBenny Halevy *p = cpu_to_be32(args->count); 16011da177e4SLinus Torvalds 16021da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1603d017931cSAndy Adamson hdr->nops++; 1604dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 16051da177e4SLinus Torvalds } 16061da177e4SLinus Torvalds 1607cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16081da177e4SLinus Torvalds { 16098687b63aSAl Viro __be32 *p; 16101da177e4SLinus Torvalds 161113c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 16121da177e4SLinus Torvalds 1613e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 161434558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1615d017931cSAndy Adamson hdr->nops++; 1616dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 16171da177e4SLinus Torvalds } 16189b7b9fccSAndy Adamson 161999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16209b7b9fccSAndy Adamson /* NFSv4.1 operations */ 162199fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 162299fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 162399fe60d0SBenny Halevy struct compound_hdr *hdr) 162499fe60d0SBenny Halevy { 162599fe60d0SBenny Halevy __be32 *p; 162699fe60d0SBenny Halevy 162713c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1628e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 162934558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 163099fe60d0SBenny Halevy 163199fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 163299fe60d0SBenny Halevy 163313c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1634e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1635e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 163634558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 163799fe60d0SBenny Halevy hdr->nops++; 163899fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 163999fe60d0SBenny Halevy } 1640fc931582SAndy Adamson 1641fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1642fc931582SAndy Adamson struct nfs41_create_session_args *args, 1643fc931582SAndy Adamson struct compound_hdr *hdr) 1644fc931582SAndy Adamson { 1645fc931582SAndy Adamson __be32 *p; 1646fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1647fc931582SAndy Adamson uint32_t len; 1648fc931582SAndy Adamson struct nfs_client *clp = args->client; 16498e0d46e1SMike Sager u32 max_resp_sz_cached; 16508e0d46e1SMike Sager 16518e0d46e1SMike Sager /* 16528e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 16538e0d46e1SMike Sager * 2 is the verifier. 16548e0d46e1SMike Sager */ 16558e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 16568e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1657fc931582SAndy Adamson 1658fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1659fc931582SAndy Adamson clp->cl_ipaddr); 166042edd698SBenny Halevy 166113c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1662e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1663b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1664e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1665e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1666fc931582SAndy Adamson 1667fc931582SAndy Adamson /* Fore Channel */ 1668e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1669e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1670e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 16718e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1672e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1673e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1674e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1675fc931582SAndy Adamson 1676fc931582SAndy Adamson /* Back Channel */ 1677e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1678e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1679e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1680e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1681e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1682e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1683e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1684fc931582SAndy Adamson 1685e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1686e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1687e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1688fc931582SAndy Adamson 1689fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1690e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1691811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1692e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1693e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 169434558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1695fc931582SAndy Adamson hdr->nops++; 1696fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1697fc931582SAndy Adamson } 16980f3e66c6SAndy Adamson 16990f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 17000f3e66c6SAndy Adamson struct nfs4_session *session, 17010f3e66c6SAndy Adamson struct compound_hdr *hdr) 17020f3e66c6SAndy Adamson { 17030f3e66c6SAndy Adamson __be32 *p; 170413c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1705e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 170634558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17070f3e66c6SAndy Adamson hdr->nops++; 17080f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 17090f3e66c6SAndy Adamson } 171018019753SRicardo Labiaga 171118019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 171218019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 171318019753SRicardo Labiaga struct compound_hdr *hdr) 171418019753SRicardo Labiaga { 171518019753SRicardo Labiaga __be32 *p; 171618019753SRicardo Labiaga 171718019753SRicardo Labiaga p = reserve_space(xdr, 8); 171818019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 171918019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 172018019753SRicardo Labiaga hdr->nops++; 172118019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 172218019753SRicardo Labiaga } 172399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 172499fe60d0SBenny Halevy 17259b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 17269b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 17279b7b9fccSAndy Adamson struct compound_hdr *hdr) 17289b7b9fccSAndy Adamson { 17299b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 17309b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1731fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1732fc01cea9SAndy Adamson struct nfs4_slot *slot; 1733fc01cea9SAndy Adamson __be32 *p; 17349b7b9fccSAndy Adamson 17359b7b9fccSAndy Adamson if (!session) 17369b7b9fccSAndy Adamson return; 17379b7b9fccSAndy Adamson 1738fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1739fc01cea9SAndy Adamson 1740fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1741fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1742fc01cea9SAndy Adamson 174313c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1744e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1745fc01cea9SAndy Adamson 1746fc01cea9SAndy Adamson /* 1747fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1748fc01cea9SAndy Adamson */ 1749fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1750fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1751fc01cea9SAndy Adamson __func__, 1752fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1753fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1754fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1755fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1756fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1757fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 175893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1759e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1760e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1761e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 176234558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 17639b7b9fccSAndy Adamson hdr->nops++; 17649b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 17659b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 17669b7b9fccSAndy Adamson } 17679b7b9fccSAndy Adamson 1768b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1769b1f69b75SAndy Adamson static void 1770b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1771b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1772b1f69b75SAndy Adamson struct compound_hdr *hdr) 1773b1f69b75SAndy Adamson { 1774b1f69b75SAndy Adamson __be32 *p; 1775b1f69b75SAndy Adamson 1776b1f69b75SAndy Adamson p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); 1777b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICEINFO); 1778b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1779b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1780b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1781b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1782b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1783b1f69b75SAndy Adamson hdr->nops++; 1784b1f69b75SAndy Adamson hdr->replen += decode_getdeviceinfo_maxsz; 1785b1f69b75SAndy Adamson } 1786b1f69b75SAndy Adamson 1787b1f69b75SAndy Adamson static void 1788b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1789b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1790b1f69b75SAndy Adamson struct compound_hdr *hdr) 1791b1f69b75SAndy Adamson { 1792b1f69b75SAndy Adamson nfs4_stateid stateid; 1793b1f69b75SAndy Adamson __be32 *p; 1794b1f69b75SAndy Adamson 1795b1f69b75SAndy Adamson p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 1796b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTGET); 1797b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1798b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1799b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1800b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1801b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1802b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1803b1f69b75SAndy Adamson pnfs_get_layout_stateid(&stateid, NFS_I(args->inode)->layout, 1804b1f69b75SAndy Adamson args->ctx->state); 1805b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, &stateid.data, NFS4_STATEID_SIZE); 1806b1f69b75SAndy Adamson *p = cpu_to_be32(args->maxcount); 1807b1f69b75SAndy Adamson 1808b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1809b1f69b75SAndy Adamson __func__, 1810b1f69b75SAndy Adamson args->type, 1811b1f69b75SAndy Adamson args->range.iomode, 1812b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1813b1f69b75SAndy Adamson (unsigned long)args->range.length, 1814b1f69b75SAndy Adamson args->maxcount); 1815b1f69b75SAndy Adamson hdr->nops++; 1816b1f69b75SAndy Adamson hdr->replen += decode_layoutget_maxsz; 1817b1f69b75SAndy Adamson } 1818b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 1819b1f69b75SAndy Adamson 18201da177e4SLinus Torvalds /* 18211da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 18221da177e4SLinus Torvalds */ 18231da177e4SLinus Torvalds 182466cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 182566cc0429SBenny Halevy { 182666cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 182766cc0429SBenny Halevy if (args->sa_session) 1828a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 182966cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 183066cc0429SBenny Halevy return 0; 183166cc0429SBenny Halevy } 183266cc0429SBenny Halevy 18331da177e4SLinus Torvalds /* 18341da177e4SLinus Torvalds * Encode an ACCESS request 18351da177e4SLinus Torvalds */ 18368687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 18371da177e4SLinus Torvalds { 18381da177e4SLinus Torvalds struct xdr_stream xdr; 18391da177e4SLinus Torvalds struct compound_hdr hdr = { 184066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18411da177e4SLinus Torvalds }; 18421da177e4SLinus Torvalds 18431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18440c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18459b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1846cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1847cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1848cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1849d017931cSAndy Adamson encode_nops(&hdr); 1850cf8cdbe5SAndy Adamson return 0; 18511da177e4SLinus Torvalds } 18521da177e4SLinus Torvalds 18531da177e4SLinus Torvalds /* 18541da177e4SLinus Torvalds * Encode LOOKUP request 18551da177e4SLinus Torvalds */ 18568687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 18571da177e4SLinus Torvalds { 18581da177e4SLinus Torvalds struct xdr_stream xdr; 18591da177e4SLinus Torvalds struct compound_hdr hdr = { 186066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18611da177e4SLinus Torvalds }; 18621da177e4SLinus Torvalds 18631da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18640c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18659b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1866cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1867cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1868cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1869cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1870d017931cSAndy Adamson encode_nops(&hdr); 1871cf8cdbe5SAndy Adamson return 0; 18721da177e4SLinus Torvalds } 18731da177e4SLinus Torvalds 18741da177e4SLinus Torvalds /* 18751da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 18761da177e4SLinus Torvalds */ 18778687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 18781da177e4SLinus Torvalds { 18791da177e4SLinus Torvalds struct xdr_stream xdr; 18801da177e4SLinus Torvalds struct compound_hdr hdr = { 188166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18821da177e4SLinus Torvalds }; 18831da177e4SLinus Torvalds 18841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1887cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1888cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1889cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1890d017931cSAndy Adamson encode_nops(&hdr); 1891cf8cdbe5SAndy Adamson return 0; 18921da177e4SLinus Torvalds } 18931da177e4SLinus Torvalds 18941da177e4SLinus Torvalds /* 18951da177e4SLinus Torvalds * Encode REMOVE request 18961da177e4SLinus Torvalds */ 18974fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 18981da177e4SLinus Torvalds { 18991da177e4SLinus Torvalds struct xdr_stream xdr; 19001da177e4SLinus Torvalds struct compound_hdr hdr = { 190166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19021da177e4SLinus Torvalds }; 19031da177e4SLinus Torvalds 19041da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19050c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19069b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1907cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1908cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1909cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1910d017931cSAndy Adamson encode_nops(&hdr); 1911cf8cdbe5SAndy Adamson return 0; 19121da177e4SLinus Torvalds } 19131da177e4SLinus Torvalds 19141da177e4SLinus Torvalds /* 19151da177e4SLinus Torvalds * Encode RENAME request 19161da177e4SLinus Torvalds */ 1917920769f0SJeff Layton static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs_renameargs *args) 19181da177e4SLinus Torvalds { 19191da177e4SLinus Torvalds struct xdr_stream xdr; 19201da177e4SLinus Torvalds struct compound_hdr hdr = { 192166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19221da177e4SLinus Torvalds }; 19231da177e4SLinus Torvalds 19241da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19250c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19269b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1927cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1928cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1929cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1930cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1931cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1932cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1933cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1934d017931cSAndy Adamson encode_nops(&hdr); 1935cf8cdbe5SAndy Adamson return 0; 19361da177e4SLinus Torvalds } 19371da177e4SLinus Torvalds 19381da177e4SLinus Torvalds /* 19391da177e4SLinus Torvalds * Encode LINK request 19401da177e4SLinus Torvalds */ 19418687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 19421da177e4SLinus Torvalds { 19431da177e4SLinus Torvalds struct xdr_stream xdr; 19441da177e4SLinus Torvalds struct compound_hdr hdr = { 194566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19461da177e4SLinus Torvalds }; 19471da177e4SLinus Torvalds 19481da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19490c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19509b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1951cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1952cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1953cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1954cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1955cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1956cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1957cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1958d017931cSAndy Adamson encode_nops(&hdr); 1959cf8cdbe5SAndy Adamson return 0; 19601da177e4SLinus Torvalds } 19611da177e4SLinus Torvalds 19621da177e4SLinus Torvalds /* 19631da177e4SLinus Torvalds * Encode CREATE request 19641da177e4SLinus Torvalds */ 19658687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 19661da177e4SLinus Torvalds { 19671da177e4SLinus Torvalds struct xdr_stream xdr; 19681da177e4SLinus Torvalds struct compound_hdr hdr = { 196966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19701da177e4SLinus Torvalds }; 19711da177e4SLinus Torvalds 19721da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19730c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19749b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1975cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1976cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1977cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1978cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1979cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1980cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1981cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1982d017931cSAndy Adamson encode_nops(&hdr); 1983cf8cdbe5SAndy Adamson return 0; 19841da177e4SLinus Torvalds } 19851da177e4SLinus Torvalds 19861da177e4SLinus Torvalds /* 19871da177e4SLinus Torvalds * Encode SYMLINK request 19881da177e4SLinus Torvalds */ 19898687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 19901da177e4SLinus Torvalds { 19911da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 19921da177e4SLinus Torvalds } 19931da177e4SLinus Torvalds 19941da177e4SLinus Torvalds /* 19951da177e4SLinus Torvalds * Encode GETATTR request 19961da177e4SLinus Torvalds */ 19978687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 19981da177e4SLinus Torvalds { 19991da177e4SLinus Torvalds struct xdr_stream xdr; 20001da177e4SLinus Torvalds struct compound_hdr hdr = { 200166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20021da177e4SLinus Torvalds }; 20031da177e4SLinus Torvalds 20041da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20050c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20069b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2007cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2008cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2009d017931cSAndy Adamson encode_nops(&hdr); 2010cf8cdbe5SAndy Adamson return 0; 20111da177e4SLinus Torvalds } 20121da177e4SLinus Torvalds 20131da177e4SLinus Torvalds /* 20141da177e4SLinus Torvalds * Encode a CLOSE request 20151da177e4SLinus Torvalds */ 20168687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 20171da177e4SLinus Torvalds { 20181da177e4SLinus Torvalds struct xdr_stream xdr; 20191da177e4SLinus Torvalds struct compound_hdr hdr = { 202066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20211da177e4SLinus Torvalds }; 20221da177e4SLinus Torvalds 20231da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20240c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20259b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2026cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2027cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 2028cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2029d017931cSAndy Adamson encode_nops(&hdr); 2030cf8cdbe5SAndy Adamson return 0; 20311da177e4SLinus Torvalds } 20321da177e4SLinus Torvalds 20331da177e4SLinus Torvalds /* 20341da177e4SLinus Torvalds * Encode an OPEN request 20351da177e4SLinus Torvalds */ 20368687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 20371da177e4SLinus Torvalds { 20381da177e4SLinus Torvalds struct xdr_stream xdr; 20391da177e4SLinus Torvalds struct compound_hdr hdr = { 204066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20411da177e4SLinus Torvalds }; 20421da177e4SLinus Torvalds 20431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20440c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20459b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2046cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2047cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 2048cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 2049cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 2050cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2051cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 2052cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2053d017931cSAndy Adamson encode_nops(&hdr); 2054cf8cdbe5SAndy Adamson return 0; 20551da177e4SLinus Torvalds } 20561da177e4SLinus Torvalds 20571da177e4SLinus Torvalds /* 20581da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 20591da177e4SLinus Torvalds */ 20608687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 20611da177e4SLinus Torvalds { 20621da177e4SLinus Torvalds struct xdr_stream xdr; 20631da177e4SLinus Torvalds struct compound_hdr hdr = { 2064d017931cSAndy Adamson .nops = 0, 20651da177e4SLinus Torvalds }; 20661da177e4SLinus Torvalds 20671da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20680c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2069cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2070cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 2071d017931cSAndy Adamson encode_nops(&hdr); 2072cf8cdbe5SAndy Adamson return 0; 20731da177e4SLinus Torvalds } 20741da177e4SLinus Torvalds 20751da177e4SLinus Torvalds /* 20761da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 20771da177e4SLinus Torvalds */ 20788687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 20791da177e4SLinus Torvalds { 20801da177e4SLinus Torvalds struct xdr_stream xdr; 20811da177e4SLinus Torvalds struct compound_hdr hdr = { 208266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20831da177e4SLinus Torvalds }; 20841da177e4SLinus Torvalds 20851da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20860c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20879b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2088cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2089cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 2090cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2091d017931cSAndy Adamson encode_nops(&hdr); 2092cf8cdbe5SAndy Adamson return 0; 20931da177e4SLinus Torvalds } 20941da177e4SLinus Torvalds 20951da177e4SLinus Torvalds /* 20961da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 20971da177e4SLinus Torvalds */ 20988687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 20991da177e4SLinus Torvalds { 21001da177e4SLinus Torvalds struct xdr_stream xdr; 21011da177e4SLinus Torvalds struct compound_hdr hdr = { 210266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21031da177e4SLinus Torvalds }; 21041da177e4SLinus Torvalds 21051da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21060c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21079b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2108cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2109cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 2110cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2111d017931cSAndy Adamson encode_nops(&hdr); 2112cf8cdbe5SAndy Adamson return 0; 21131da177e4SLinus Torvalds } 21141da177e4SLinus Torvalds 21151da177e4SLinus Torvalds /* 21161da177e4SLinus Torvalds * Encode a LOCK request 21171da177e4SLinus Torvalds */ 21188687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 21191da177e4SLinus Torvalds { 21201da177e4SLinus Torvalds struct xdr_stream xdr; 21211da177e4SLinus Torvalds struct compound_hdr hdr = { 212266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21231da177e4SLinus Torvalds }; 21241da177e4SLinus Torvalds 21251da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21260c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21279b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2128cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2129cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 2130d017931cSAndy Adamson encode_nops(&hdr); 2131cf8cdbe5SAndy Adamson return 0; 21321da177e4SLinus Torvalds } 21331da177e4SLinus Torvalds 21341da177e4SLinus Torvalds /* 21351da177e4SLinus Torvalds * Encode a LOCKT request 21361da177e4SLinus Torvalds */ 21378687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 21381da177e4SLinus Torvalds { 21391da177e4SLinus Torvalds struct xdr_stream xdr; 21401da177e4SLinus Torvalds struct compound_hdr hdr = { 214166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21421da177e4SLinus Torvalds }; 21431da177e4SLinus Torvalds 21441da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21450c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21469b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2147cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2148cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 2149d017931cSAndy Adamson encode_nops(&hdr); 2150cf8cdbe5SAndy Adamson return 0; 21511da177e4SLinus Torvalds } 21521da177e4SLinus Torvalds 21531da177e4SLinus Torvalds /* 21541da177e4SLinus Torvalds * Encode a LOCKU request 21551da177e4SLinus Torvalds */ 21568687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 21571da177e4SLinus Torvalds { 21581da177e4SLinus Torvalds struct xdr_stream xdr; 21591da177e4SLinus Torvalds struct compound_hdr hdr = { 216066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21611da177e4SLinus Torvalds }; 21621da177e4SLinus Torvalds 21631da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21640c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21659b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2166cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2167cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 2168d017931cSAndy Adamson encode_nops(&hdr); 2169cf8cdbe5SAndy Adamson return 0; 21701da177e4SLinus Torvalds } 21711da177e4SLinus Torvalds 2172d3c7b7ccSTrond Myklebust static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args) 2173d3c7b7ccSTrond Myklebust { 2174d3c7b7ccSTrond Myklebust struct xdr_stream xdr; 2175d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2176d3c7b7ccSTrond Myklebust .minorversion = 0, 2177d3c7b7ccSTrond Myklebust }; 2178d3c7b7ccSTrond Myklebust 2179d3c7b7ccSTrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2180d3c7b7ccSTrond Myklebust encode_compound_hdr(&xdr, req, &hdr); 2181d3c7b7ccSTrond Myklebust encode_release_lockowner(&xdr, &args->lock_owner, &hdr); 2182d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2183d3c7b7ccSTrond Myklebust return 0; 2184d3c7b7ccSTrond Myklebust } 2185d3c7b7ccSTrond Myklebust 21861da177e4SLinus Torvalds /* 21871da177e4SLinus Torvalds * Encode a READLINK request 21881da177e4SLinus Torvalds */ 21898687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 21901da177e4SLinus Torvalds { 21911da177e4SLinus Torvalds struct xdr_stream xdr; 21921da177e4SLinus Torvalds struct compound_hdr hdr = { 219366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21941da177e4SLinus Torvalds }; 21951da177e4SLinus Torvalds 21961da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21970c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21989b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2199cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2200cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2201e3a535e1STrond Myklebust 220228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2203e3a535e1STrond Myklebust args->pgbase, args->pglen); 2204d017931cSAndy Adamson encode_nops(&hdr); 2205cf8cdbe5SAndy Adamson return 0; 22061da177e4SLinus Torvalds } 22071da177e4SLinus Torvalds 22081da177e4SLinus Torvalds /* 22091da177e4SLinus Torvalds * Encode a READDIR request 22101da177e4SLinus Torvalds */ 22118687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 22121da177e4SLinus Torvalds { 22131da177e4SLinus Torvalds struct xdr_stream xdr; 22141da177e4SLinus Torvalds struct compound_hdr hdr = { 221566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22161da177e4SLinus Torvalds }; 22171da177e4SLinus Torvalds 22181da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22190c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22209b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2221cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2222cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2223d6ac02dfSTrond Myklebust 222428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2225d6ac02dfSTrond Myklebust args->pgbase, args->count); 2226d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 222728f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2228d6ac02dfSTrond Myklebust args->pgbase, args->count); 2229d017931cSAndy Adamson encode_nops(&hdr); 2230cf8cdbe5SAndy Adamson return 0; 22311da177e4SLinus Torvalds } 22321da177e4SLinus Torvalds 22331da177e4SLinus Torvalds /* 22341da177e4SLinus Torvalds * Encode a READ request 22351da177e4SLinus Torvalds */ 22368687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 22371da177e4SLinus Torvalds { 22381da177e4SLinus Torvalds struct xdr_stream xdr; 22391da177e4SLinus Torvalds struct compound_hdr hdr = { 224066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22411da177e4SLinus Torvalds }; 22421da177e4SLinus Torvalds 22431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22440c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22459b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2246cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2247cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 22481da177e4SLinus Torvalds 224928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 22501da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 22514f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2252d017931cSAndy Adamson encode_nops(&hdr); 2253cf8cdbe5SAndy Adamson return 0; 22541da177e4SLinus Torvalds } 22551da177e4SLinus Torvalds 22561da177e4SLinus Torvalds /* 22571da177e4SLinus Torvalds * Encode an SETATTR request 22581da177e4SLinus Torvalds */ 22598687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 22601da177e4SLinus Torvalds { 22611da177e4SLinus Torvalds struct xdr_stream xdr; 22621da177e4SLinus Torvalds struct compound_hdr hdr = { 226366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22641da177e4SLinus Torvalds }; 22651da177e4SLinus Torvalds 22661da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22670c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22689b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2269cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2270cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2271cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2272d017931cSAndy Adamson encode_nops(&hdr); 2273cf8cdbe5SAndy Adamson return 0; 22741da177e4SLinus Torvalds } 22751da177e4SLinus Torvalds 22761da177e4SLinus Torvalds /* 2277029d105eSJ. Bruce Fields * Encode a GETACL request 2278029d105eSJ. Bruce Fields */ 2279029d105eSJ. Bruce Fields static int 22808687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2281029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2282029d105eSJ. Bruce Fields { 2283029d105eSJ. Bruce Fields struct xdr_stream xdr; 2284029d105eSJ. Bruce Fields struct compound_hdr hdr = { 228566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2286029d105eSJ. Bruce Fields }; 228728f56694SBenny Halevy uint32_t replen; 2288029d105eSJ. Bruce Fields 2289029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22900c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22919b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2292cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2293d327cf74SJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; 2294cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2295cf8cdbe5SAndy Adamson 229628f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2297029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2298d017931cSAndy Adamson encode_nops(&hdr); 2299cf8cdbe5SAndy Adamson return 0; 2300029d105eSJ. Bruce Fields } 2301029d105eSJ. Bruce Fields 2302029d105eSJ. Bruce Fields /* 23031da177e4SLinus Torvalds * Encode a WRITE request 23041da177e4SLinus Torvalds */ 23058687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 23061da177e4SLinus Torvalds { 23071da177e4SLinus Torvalds struct xdr_stream xdr; 23081da177e4SLinus Torvalds struct compound_hdr hdr = { 230966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23101da177e4SLinus Torvalds }; 23111da177e4SLinus Torvalds 23121da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23130c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23149b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2315cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2316cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 23174f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2318cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2319d017931cSAndy Adamson encode_nops(&hdr); 2320cf8cdbe5SAndy Adamson return 0; 23211da177e4SLinus Torvalds } 23221da177e4SLinus Torvalds 23231da177e4SLinus Torvalds /* 23241da177e4SLinus Torvalds * a COMMIT request 23251da177e4SLinus Torvalds */ 23268687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 23271da177e4SLinus Torvalds { 23281da177e4SLinus Torvalds struct xdr_stream xdr; 23291da177e4SLinus Torvalds struct compound_hdr hdr = { 233066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23311da177e4SLinus Torvalds }; 23321da177e4SLinus Torvalds 23331da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23340c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23359b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2336cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2337cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2338cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2339d017931cSAndy Adamson encode_nops(&hdr); 2340cf8cdbe5SAndy Adamson return 0; 23411da177e4SLinus Torvalds } 23421da177e4SLinus Torvalds 23431da177e4SLinus Torvalds /* 23441da177e4SLinus Torvalds * FSINFO request 23451da177e4SLinus Torvalds */ 23468687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 23471da177e4SLinus Torvalds { 23481da177e4SLinus Torvalds struct xdr_stream xdr; 23491da177e4SLinus Torvalds struct compound_hdr hdr = { 235066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23511da177e4SLinus Torvalds }; 23521da177e4SLinus Torvalds 23531da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23540c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23559b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2356cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2357cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2358d017931cSAndy Adamson encode_nops(&hdr); 2359cf8cdbe5SAndy Adamson return 0; 23601da177e4SLinus Torvalds } 23611da177e4SLinus Torvalds 23621da177e4SLinus Torvalds /* 23631da177e4SLinus Torvalds * a PATHCONF request 23641da177e4SLinus Torvalds */ 23658687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 23661da177e4SLinus Torvalds { 23671da177e4SLinus Torvalds struct xdr_stream xdr; 23681da177e4SLinus Torvalds struct compound_hdr hdr = { 236966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23701da177e4SLinus Torvalds }; 23711da177e4SLinus Torvalds 23721da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23730c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23749b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2375cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2376cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2377d017931cSAndy Adamson &hdr); 2378d017931cSAndy Adamson encode_nops(&hdr); 2379cf8cdbe5SAndy Adamson return 0; 23801da177e4SLinus Torvalds } 23811da177e4SLinus Torvalds 23821da177e4SLinus Torvalds /* 23831da177e4SLinus Torvalds * a STATFS request 23841da177e4SLinus Torvalds */ 23858687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 23861da177e4SLinus Torvalds { 23871da177e4SLinus Torvalds struct xdr_stream xdr; 23881da177e4SLinus Torvalds struct compound_hdr hdr = { 238966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23901da177e4SLinus Torvalds }; 23911da177e4SLinus Torvalds 23921da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23930c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23949b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2395cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2396cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2397d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2398d017931cSAndy Adamson encode_nops(&hdr); 2399cf8cdbe5SAndy Adamson return 0; 24001da177e4SLinus Torvalds } 24011da177e4SLinus Torvalds 24021da177e4SLinus Torvalds /* 24031da177e4SLinus Torvalds * GETATTR_BITMAP request 24041da177e4SLinus Torvalds */ 240543652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 240643652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 24071da177e4SLinus Torvalds { 24081da177e4SLinus Torvalds struct xdr_stream xdr; 24091da177e4SLinus Torvalds struct compound_hdr hdr = { 241066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24111da177e4SLinus Torvalds }; 24121da177e4SLinus Torvalds 24131da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24140c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 24159b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 241643652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2417cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 24181da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 24191da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2420d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2421d017931cSAndy Adamson encode_nops(&hdr); 2422cf8cdbe5SAndy Adamson return 0; 24231da177e4SLinus Torvalds } 24241da177e4SLinus Torvalds 24251da177e4SLinus Torvalds /* 24261da177e4SLinus Torvalds * a RENEW request 24271da177e4SLinus Torvalds */ 24288687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 24291da177e4SLinus Torvalds { 24301da177e4SLinus Torvalds struct xdr_stream xdr; 24311da177e4SLinus Torvalds struct compound_hdr hdr = { 2432d017931cSAndy Adamson .nops = 0, 24331da177e4SLinus Torvalds }; 24341da177e4SLinus Torvalds 24351da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24360c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2437cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2438d017931cSAndy Adamson encode_nops(&hdr); 2439cf8cdbe5SAndy Adamson return 0; 24401da177e4SLinus Torvalds } 24411da177e4SLinus Torvalds 24421da177e4SLinus Torvalds /* 24431da177e4SLinus Torvalds * a SETCLIENTID request 24441da177e4SLinus Torvalds */ 24458687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 24461da177e4SLinus Torvalds { 24471da177e4SLinus Torvalds struct xdr_stream xdr; 24481da177e4SLinus Torvalds struct compound_hdr hdr = { 2449d017931cSAndy Adamson .nops = 0, 24501da177e4SLinus Torvalds }; 24511da177e4SLinus Torvalds 24521da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24530c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2454cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2455d017931cSAndy Adamson encode_nops(&hdr); 2456cf8cdbe5SAndy Adamson return 0; 24571da177e4SLinus Torvalds } 24581da177e4SLinus Torvalds 24591da177e4SLinus Torvalds /* 24601da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 24611da177e4SLinus Torvalds */ 2462bb8b27e5STrond Myklebust static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid_res *arg) 24631da177e4SLinus Torvalds { 24641da177e4SLinus Torvalds struct xdr_stream xdr; 24651da177e4SLinus Torvalds struct compound_hdr hdr = { 2466d017931cSAndy Adamson .nops = 0, 24671da177e4SLinus Torvalds }; 24681da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24691da177e4SLinus Torvalds 24701da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24710c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2472bb8b27e5STrond Myklebust encode_setclientid_confirm(&xdr, arg, &hdr); 2473cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2474cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2475d017931cSAndy Adamson encode_nops(&hdr); 2476cf8cdbe5SAndy Adamson return 0; 24771da177e4SLinus Torvalds } 24781da177e4SLinus Torvalds 24791da177e4SLinus Torvalds /* 24801da177e4SLinus Torvalds * DELEGRETURN request 24811da177e4SLinus Torvalds */ 24828687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 24831da177e4SLinus Torvalds { 24841da177e4SLinus Torvalds struct xdr_stream xdr; 24851da177e4SLinus Torvalds struct compound_hdr hdr = { 248666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24871da177e4SLinus Torvalds }; 24881da177e4SLinus Torvalds 24891da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24900c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 24919b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2492cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2493cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2494cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2495d017931cSAndy Adamson encode_nops(&hdr); 2496cf8cdbe5SAndy Adamson return 0; 24971da177e4SLinus Torvalds } 24981da177e4SLinus Torvalds 24991da177e4SLinus Torvalds /* 2500683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2501683b57b4STrond Myklebust */ 25028687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2503683b57b4STrond Myklebust { 2504683b57b4STrond Myklebust struct xdr_stream xdr; 2505683b57b4STrond Myklebust struct compound_hdr hdr = { 250666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2507683b57b4STrond Myklebust }; 250828f56694SBenny Halevy uint32_t replen; 2509683b57b4STrond Myklebust 2510683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 25110c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 25129b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2513cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2514cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 251528f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2516cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2517cf8cdbe5SAndy Adamson 251828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2519683b57b4STrond Myklebust 0, PAGE_SIZE); 2520d017931cSAndy Adamson encode_nops(&hdr); 2521cf8cdbe5SAndy Adamson return 0; 2522683b57b4STrond Myklebust } 2523683b57b4STrond Myklebust 252499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 252599fe60d0SBenny Halevy /* 252699fe60d0SBenny Halevy * EXCHANGE_ID request 252799fe60d0SBenny Halevy */ 252899fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 252999fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 253099fe60d0SBenny Halevy { 253199fe60d0SBenny Halevy struct xdr_stream xdr; 253299fe60d0SBenny Halevy struct compound_hdr hdr = { 2533a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 253499fe60d0SBenny Halevy }; 253599fe60d0SBenny Halevy 253699fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 253799fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 253899fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 253999fe60d0SBenny Halevy encode_nops(&hdr); 254099fe60d0SBenny Halevy return 0; 254199fe60d0SBenny Halevy } 25422050f0ccSAndy Adamson 25432050f0ccSAndy Adamson /* 2544fc931582SAndy Adamson * a CREATE_SESSION request 2545fc931582SAndy Adamson */ 2546fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2547fc931582SAndy Adamson struct nfs41_create_session_args *args) 2548fc931582SAndy Adamson { 2549fc931582SAndy Adamson struct xdr_stream xdr; 2550fc931582SAndy Adamson struct compound_hdr hdr = { 2551a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2552fc931582SAndy Adamson }; 2553fc931582SAndy Adamson 2554fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2555fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2556fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2557fc931582SAndy Adamson encode_nops(&hdr); 2558fc931582SAndy Adamson return 0; 2559fc931582SAndy Adamson } 2560fc931582SAndy Adamson 2561fc931582SAndy Adamson /* 25620f3e66c6SAndy Adamson * a DESTROY_SESSION request 25630f3e66c6SAndy Adamson */ 25640f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 25650f3e66c6SAndy Adamson struct nfs4_session *session) 25660f3e66c6SAndy Adamson { 25670f3e66c6SAndy Adamson struct xdr_stream xdr; 25680f3e66c6SAndy Adamson struct compound_hdr hdr = { 2569a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 25700f3e66c6SAndy Adamson }; 25710f3e66c6SAndy Adamson 25720f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 25730f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 25740f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 25750f3e66c6SAndy Adamson encode_nops(&hdr); 25760f3e66c6SAndy Adamson return 0; 25770f3e66c6SAndy Adamson } 25780f3e66c6SAndy Adamson 25790f3e66c6SAndy Adamson /* 2580fc01cea9SAndy Adamson * a SEQUENCE request 2581fc01cea9SAndy Adamson */ 2582fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2583fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2584fc01cea9SAndy Adamson { 2585fc01cea9SAndy Adamson struct xdr_stream xdr; 2586fc01cea9SAndy Adamson struct compound_hdr hdr = { 2587fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2588fc01cea9SAndy Adamson }; 2589fc01cea9SAndy Adamson 2590fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2591fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2592fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2593fc01cea9SAndy Adamson encode_nops(&hdr); 2594fc01cea9SAndy Adamson return 0; 2595fc01cea9SAndy Adamson } 2596fc01cea9SAndy Adamson 2597fc01cea9SAndy Adamson /* 25982050f0ccSAndy Adamson * a GET_LEASE_TIME request 25992050f0ccSAndy Adamson */ 26002050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 26012050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 26022050f0ccSAndy Adamson { 26032050f0ccSAndy Adamson struct xdr_stream xdr; 26042050f0ccSAndy Adamson struct compound_hdr hdr = { 26052050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 26062050f0ccSAndy Adamson }; 26072050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 26082050f0ccSAndy Adamson 26092050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 26102050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 26112050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 26122050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 26132050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 26142050f0ccSAndy Adamson encode_nops(&hdr); 26152050f0ccSAndy Adamson return 0; 26162050f0ccSAndy Adamson } 261718019753SRicardo Labiaga 261818019753SRicardo Labiaga /* 261918019753SRicardo Labiaga * a RECLAIM_COMPLETE request 262018019753SRicardo Labiaga */ 262118019753SRicardo Labiaga static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p, 262218019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 262318019753SRicardo Labiaga { 262418019753SRicardo Labiaga struct xdr_stream xdr; 262518019753SRicardo Labiaga struct compound_hdr hdr = { 262618019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 262718019753SRicardo Labiaga }; 262818019753SRicardo Labiaga 262918019753SRicardo Labiaga xdr_init_encode(&xdr, &req->rq_snd_buf, p); 263018019753SRicardo Labiaga encode_compound_hdr(&xdr, req, &hdr); 263118019753SRicardo Labiaga encode_sequence(&xdr, &args->seq_args, &hdr); 263218019753SRicardo Labiaga encode_reclaim_complete(&xdr, args, &hdr); 263318019753SRicardo Labiaga encode_nops(&hdr); 263418019753SRicardo Labiaga return 0; 263518019753SRicardo Labiaga } 263618019753SRicardo Labiaga 2637b1f69b75SAndy Adamson /* 2638b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2639b1f69b75SAndy Adamson */ 2640b1f69b75SAndy Adamson static int nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, uint32_t *p, 2641b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2642b1f69b75SAndy Adamson { 2643b1f69b75SAndy Adamson struct xdr_stream xdr; 2644b1f69b75SAndy Adamson struct compound_hdr hdr = { 2645b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2646b1f69b75SAndy Adamson }; 2647b1f69b75SAndy Adamson 2648b1f69b75SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2649b1f69b75SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2650b1f69b75SAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2651b1f69b75SAndy Adamson encode_getdeviceinfo(&xdr, args, &hdr); 2652b1f69b75SAndy Adamson 2653b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2654b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2655b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2656b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2657b1f69b75SAndy Adamson args->pdev->pglen); 2658b1f69b75SAndy Adamson 2659b1f69b75SAndy Adamson encode_nops(&hdr); 2660b1f69b75SAndy Adamson return 0; 2661b1f69b75SAndy Adamson } 2662b1f69b75SAndy Adamson 2663b1f69b75SAndy Adamson /* 2664b1f69b75SAndy Adamson * Encode LAYOUTGET request 2665b1f69b75SAndy Adamson */ 2666b1f69b75SAndy Adamson static int nfs4_xdr_enc_layoutget(struct rpc_rqst *req, uint32_t *p, 2667b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2668b1f69b75SAndy Adamson { 2669b1f69b75SAndy Adamson struct xdr_stream xdr; 2670b1f69b75SAndy Adamson struct compound_hdr hdr = { 2671b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2672b1f69b75SAndy Adamson }; 2673b1f69b75SAndy Adamson 2674b1f69b75SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2675b1f69b75SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2676b1f69b75SAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2677b1f69b75SAndy Adamson encode_putfh(&xdr, NFS_FH(args->inode), &hdr); 2678b1f69b75SAndy Adamson encode_layoutget(&xdr, args, &hdr); 2679b1f69b75SAndy Adamson encode_nops(&hdr); 2680b1f69b75SAndy Adamson return 0; 2681b1f69b75SAndy Adamson } 268299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 268399fe60d0SBenny Halevy 2684686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2685686841b3SBenny Halevy { 2686686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2687686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2688686841b3SBenny Halevy func, xdr->end - xdr->p); 2689686841b3SBenny Halevy } 26901da177e4SLinus Torvalds 2691683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 26921da177e4SLinus Torvalds { 26938687b63aSAl Viro __be32 *p; 26941da177e4SLinus Torvalds 2695c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2696c0eae66eSBenny Halevy if (unlikely(!p)) 2697c0eae66eSBenny Halevy goto out_overflow; 2698cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2699c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2700c0eae66eSBenny Halevy if (unlikely(!p)) 2701c0eae66eSBenny Halevy goto out_overflow; 27021da177e4SLinus Torvalds *string = (char *)p; 27031da177e4SLinus Torvalds return 0; 2704c0eae66eSBenny Halevy out_overflow: 2705c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2706c0eae66eSBenny Halevy return -EIO; 27071da177e4SLinus Torvalds } 27081da177e4SLinus Torvalds 27091da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 27101da177e4SLinus Torvalds { 27118687b63aSAl Viro __be32 *p; 27121da177e4SLinus Torvalds 2713c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2714c0eae66eSBenny Halevy if (unlikely(!p)) 2715c0eae66eSBenny Halevy goto out_overflow; 27166f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2717cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 27181da177e4SLinus Torvalds 2719c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2720c0eae66eSBenny Halevy if (unlikely(!p)) 2721c0eae66eSBenny Halevy goto out_overflow; 27221da177e4SLinus Torvalds hdr->tag = (char *)p; 27231da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2724cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2725aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2726aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 27271da177e4SLinus Torvalds return 0; 2728c0eae66eSBenny Halevy out_overflow: 2729c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2730c0eae66eSBenny Halevy return -EIO; 27311da177e4SLinus Torvalds } 27321da177e4SLinus Torvalds 27331da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 27341da177e4SLinus Torvalds { 27358687b63aSAl Viro __be32 *p; 27361da177e4SLinus Torvalds uint32_t opnum; 27371da177e4SLinus Torvalds int32_t nfserr; 27381da177e4SLinus Torvalds 2739c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2740c0eae66eSBenny Halevy if (unlikely(!p)) 2741c0eae66eSBenny Halevy goto out_overflow; 27426f723f77SBenny Halevy opnum = be32_to_cpup(p++); 27431da177e4SLinus Torvalds if (opnum != expected) { 2744fe82a183SChuck Lever dprintk("nfs: Server returned operation" 27451da177e4SLinus Torvalds " %d but we issued a request for %d\n", 27461da177e4SLinus Torvalds opnum, expected); 27471da177e4SLinus Torvalds return -EIO; 27481da177e4SLinus Torvalds } 2749cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 27501da177e4SLinus Torvalds if (nfserr != NFS_OK) 2751856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 27521da177e4SLinus Torvalds return 0; 2753c0eae66eSBenny Halevy out_overflow: 2754c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2755c0eae66eSBenny Halevy return -EIO; 27561da177e4SLinus Torvalds } 27571da177e4SLinus Torvalds 27581da177e4SLinus Torvalds /* Dummy routine */ 2759adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 27601da177e4SLinus Torvalds { 27618687b63aSAl Viro __be32 *p; 2762683b57b4STrond Myklebust unsigned int strlen; 27631da177e4SLinus Torvalds char *str; 27641da177e4SLinus Torvalds 2765c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2766c0eae66eSBenny Halevy if (likely(p)) 27671da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2768c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2769c0eae66eSBenny Halevy return -EIO; 27701da177e4SLinus Torvalds } 27711da177e4SLinus Torvalds 27721da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 27731da177e4SLinus Torvalds { 27748687b63aSAl Viro uint32_t bmlen; 27758687b63aSAl Viro __be32 *p; 27761da177e4SLinus Torvalds 2777c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2778c0eae66eSBenny Halevy if (unlikely(!p)) 2779c0eae66eSBenny Halevy goto out_overflow; 2780cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 27811da177e4SLinus Torvalds 27821da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2783c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2784c0eae66eSBenny Halevy if (unlikely(!p)) 2785c0eae66eSBenny Halevy goto out_overflow; 27861da177e4SLinus Torvalds if (bmlen > 0) { 27876f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 27881da177e4SLinus Torvalds if (bmlen > 1) 2789cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 27901da177e4SLinus Torvalds } 27911da177e4SLinus Torvalds return 0; 2792c0eae66eSBenny Halevy out_overflow: 2793c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2794c0eae66eSBenny Halevy return -EIO; 27951da177e4SLinus Torvalds } 27961da177e4SLinus Torvalds 27978687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 27981da177e4SLinus Torvalds { 27998687b63aSAl Viro __be32 *p; 28001da177e4SLinus Torvalds 2801c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2802c0eae66eSBenny Halevy if (unlikely(!p)) 2803c0eae66eSBenny Halevy goto out_overflow; 2804cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 28051da177e4SLinus Torvalds *savep = xdr->p; 28061da177e4SLinus Torvalds return 0; 2807c0eae66eSBenny Halevy out_overflow: 2808c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2809c0eae66eSBenny Halevy return -EIO; 28101da177e4SLinus Torvalds } 28111da177e4SLinus Torvalds 28121da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 28131da177e4SLinus Torvalds { 28141da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 28153388bff5SRoman Borisov int ret; 28163388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 28173388bff5SRoman Borisov if (unlikely(ret < 0)) 28183388bff5SRoman Borisov return ret; 28191da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 28201da177e4SLinus Torvalds } else 28211da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 282244109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 28231da177e4SLinus Torvalds return 0; 28241da177e4SLinus Torvalds } 28251da177e4SLinus Torvalds 28261da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 28271da177e4SLinus Torvalds { 28288687b63aSAl Viro __be32 *p; 2829409924e4STrond Myklebust int ret = 0; 28301da177e4SLinus Torvalds 28311da177e4SLinus Torvalds *type = 0; 28321da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 28331da177e4SLinus Torvalds return -EIO; 28341da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2835c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2836c0eae66eSBenny Halevy if (unlikely(!p)) 2837c0eae66eSBenny Halevy goto out_overflow; 2838cccddf4fSBenny Halevy *type = be32_to_cpup(p); 28391da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 28403110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 28411da177e4SLinus Torvalds return -EIO; 28421da177e4SLinus Torvalds } 28431da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2844409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 28451da177e4SLinus Torvalds } 2846bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2847409924e4STrond Myklebust return ret; 2848c0eae66eSBenny Halevy out_overflow: 2849c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2850c0eae66eSBenny Halevy return -EIO; 28511da177e4SLinus Torvalds } 28521da177e4SLinus Torvalds 28531da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 28541da177e4SLinus Torvalds { 28558687b63aSAl Viro __be32 *p; 2856409924e4STrond Myklebust int ret = 0; 28571da177e4SLinus Torvalds 28581da177e4SLinus Torvalds *change = 0; 28591da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 28601da177e4SLinus Torvalds return -EIO; 28611da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2862c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2863c0eae66eSBenny Halevy if (unlikely(!p)) 2864c0eae66eSBenny Halevy goto out_overflow; 2865cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 28661da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2867409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 28681da177e4SLinus Torvalds } 28693110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 28701da177e4SLinus Torvalds (unsigned long long)*change); 2871409924e4STrond Myklebust return ret; 2872c0eae66eSBenny Halevy out_overflow: 2873c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2874c0eae66eSBenny Halevy return -EIO; 28751da177e4SLinus Torvalds } 28761da177e4SLinus Torvalds 28771da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 28781da177e4SLinus Torvalds { 28798687b63aSAl Viro __be32 *p; 2880409924e4STrond Myklebust int ret = 0; 28811da177e4SLinus Torvalds 28821da177e4SLinus Torvalds *size = 0; 28831da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 28841da177e4SLinus Torvalds return -EIO; 28851da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2886c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2887c0eae66eSBenny Halevy if (unlikely(!p)) 2888c0eae66eSBenny Halevy goto out_overflow; 2889cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 28901da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2891409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 28921da177e4SLinus Torvalds } 28933110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2894409924e4STrond Myklebust return ret; 2895c0eae66eSBenny Halevy out_overflow: 2896c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2897c0eae66eSBenny Halevy return -EIO; 28981da177e4SLinus Torvalds } 28991da177e4SLinus Torvalds 29001da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29011da177e4SLinus Torvalds { 29028687b63aSAl Viro __be32 *p; 29031da177e4SLinus Torvalds 29041da177e4SLinus Torvalds *res = 0; 29051da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 29061da177e4SLinus Torvalds return -EIO; 29071da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2908c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2909c0eae66eSBenny Halevy if (unlikely(!p)) 2910c0eae66eSBenny Halevy goto out_overflow; 2911cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 29131da177e4SLinus Torvalds } 29143110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 29151da177e4SLinus Torvalds return 0; 2916c0eae66eSBenny Halevy out_overflow: 2917c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2918c0eae66eSBenny Halevy return -EIO; 29191da177e4SLinus Torvalds } 29201da177e4SLinus Torvalds 29211da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29221da177e4SLinus Torvalds { 29238687b63aSAl Viro __be32 *p; 29241da177e4SLinus Torvalds 29251da177e4SLinus Torvalds *res = 0; 29261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 29271da177e4SLinus Torvalds return -EIO; 29281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2929c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2930c0eae66eSBenny Halevy if (unlikely(!p)) 2931c0eae66eSBenny Halevy goto out_overflow; 2932cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29331da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 29341da177e4SLinus Torvalds } 29353110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 29361da177e4SLinus Torvalds return 0; 2937c0eae66eSBenny Halevy out_overflow: 2938c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2939c0eae66eSBenny Halevy return -EIO; 29401da177e4SLinus Torvalds } 29411da177e4SLinus Torvalds 29428b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 29431da177e4SLinus Torvalds { 29448687b63aSAl Viro __be32 *p; 2945409924e4STrond Myklebust int ret = 0; 29461da177e4SLinus Torvalds 29471da177e4SLinus Torvalds fsid->major = 0; 29481da177e4SLinus Torvalds fsid->minor = 0; 29491da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 29501da177e4SLinus Torvalds return -EIO; 29511da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2952c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2953c0eae66eSBenny Halevy if (unlikely(!p)) 2954c0eae66eSBenny Halevy goto out_overflow; 29553ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2956cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 29571da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2958409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 29591da177e4SLinus Torvalds } 29603110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 29611da177e4SLinus Torvalds (unsigned long long)fsid->major, 29621da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2963409924e4STrond Myklebust return ret; 2964c0eae66eSBenny Halevy out_overflow: 2965c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2966c0eae66eSBenny Halevy return -EIO; 29671da177e4SLinus Torvalds } 29681da177e4SLinus Torvalds 29691da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29701da177e4SLinus Torvalds { 29718687b63aSAl Viro __be32 *p; 29721da177e4SLinus Torvalds 29731da177e4SLinus Torvalds *res = 60; 29741da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 29751da177e4SLinus Torvalds return -EIO; 29761da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2977c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2978c0eae66eSBenny Halevy if (unlikely(!p)) 2979c0eae66eSBenny Halevy goto out_overflow; 2980cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29811da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 29821da177e4SLinus Torvalds } 29833110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 29841da177e4SLinus Torvalds return 0; 2985c0eae66eSBenny Halevy out_overflow: 2986c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2987c0eae66eSBenny Halevy return -EIO; 29881da177e4SLinus Torvalds } 29891da177e4SLinus Torvalds 2990ae42c70aSBryan Schumaker static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap) 2991ae42c70aSBryan Schumaker { 2992ae42c70aSBryan Schumaker __be32 *p; 2993ae42c70aSBryan Schumaker 2994ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 2995ae42c70aSBryan Schumaker return -EIO; 2996ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 2997ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 2998ae42c70aSBryan Schumaker if (unlikely(!p)) 2999ae42c70aSBryan Schumaker goto out_overflow; 3000ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3001ae42c70aSBryan Schumaker } 3002ae42c70aSBryan Schumaker return 0; 3003ae42c70aSBryan Schumaker out_overflow: 3004ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3005ae42c70aSBryan Schumaker return -EIO; 3006ae42c70aSBryan Schumaker } 3007ae42c70aSBryan Schumaker 3008ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3009ae42c70aSBryan Schumaker { 3010ae42c70aSBryan Schumaker __be32 *p; 3011ae42c70aSBryan Schumaker int len; 3012ae42c70aSBryan Schumaker 30137ad07353STrond Myklebust if (fh != NULL) 3014ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3015ae42c70aSBryan Schumaker 3016ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3017ae42c70aSBryan Schumaker return -EIO; 3018ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3019ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3020ae42c70aSBryan Schumaker if (unlikely(!p)) 3021ae42c70aSBryan Schumaker goto out_overflow; 3022ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3023ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3024ae42c70aSBryan Schumaker return -EIO; 3025ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3026ae42c70aSBryan Schumaker if (unlikely(!p)) 3027ae42c70aSBryan Schumaker goto out_overflow; 30287ad07353STrond Myklebust if (fh != NULL) { 3029ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 30307ad07353STrond Myklebust fh->size = len; 30317ad07353STrond Myklebust } 3032ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3033ae42c70aSBryan Schumaker } 3034ae42c70aSBryan Schumaker return 0; 3035ae42c70aSBryan Schumaker out_overflow: 3036ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3037ae42c70aSBryan Schumaker return -EIO; 3038ae42c70aSBryan Schumaker } 3039ae42c70aSBryan Schumaker 30401da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 30411da177e4SLinus Torvalds { 30428687b63aSAl Viro __be32 *p; 30431da177e4SLinus Torvalds 30441da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 30451da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 30461da177e4SLinus Torvalds return -EIO; 30471da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3048c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3049c0eae66eSBenny Halevy if (unlikely(!p)) 3050c0eae66eSBenny Halevy goto out_overflow; 3051cccddf4fSBenny Halevy *res = be32_to_cpup(p); 30521da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 30531da177e4SLinus Torvalds } 30543110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 30551da177e4SLinus Torvalds return 0; 3056c0eae66eSBenny Halevy out_overflow: 3057c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3058c0eae66eSBenny Halevy return -EIO; 30591da177e4SLinus Torvalds } 30601da177e4SLinus Torvalds 30611da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 30621da177e4SLinus Torvalds { 30638687b63aSAl Viro __be32 *p; 3064409924e4STrond Myklebust int ret = 0; 30651da177e4SLinus Torvalds 30661da177e4SLinus Torvalds *fileid = 0; 30671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 30681da177e4SLinus Torvalds return -EIO; 30691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3070c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3071c0eae66eSBenny Halevy if (unlikely(!p)) 3072c0eae66eSBenny Halevy goto out_overflow; 3073cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 30741da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3075409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 30761da177e4SLinus Torvalds } 30773110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3078409924e4STrond Myklebust return ret; 3079c0eae66eSBenny Halevy out_overflow: 3080c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3081c0eae66eSBenny Halevy return -EIO; 30821da177e4SLinus Torvalds } 30831da177e4SLinus Torvalds 308499baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 308599baf625SManoj Naik { 30868687b63aSAl Viro __be32 *p; 3087409924e4STrond Myklebust int ret = 0; 308899baf625SManoj Naik 308999baf625SManoj Naik *fileid = 0; 309099baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 309199baf625SManoj Naik return -EIO; 309299baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3093c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3094c0eae66eSBenny Halevy if (unlikely(!p)) 3095c0eae66eSBenny Halevy goto out_overflow; 3096cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 309799baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 3098409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 309999baf625SManoj Naik } 31003110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3101409924e4STrond Myklebust return ret; 3102c0eae66eSBenny Halevy out_overflow: 3103c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3104c0eae66eSBenny Halevy return -EIO; 310599baf625SManoj Naik } 310699baf625SManoj Naik 31071da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31081da177e4SLinus Torvalds { 31098687b63aSAl Viro __be32 *p; 31101da177e4SLinus Torvalds int status = 0; 31111da177e4SLinus Torvalds 31121da177e4SLinus Torvalds *res = 0; 31131da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 31141da177e4SLinus Torvalds return -EIO; 31151da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3116c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3117c0eae66eSBenny Halevy if (unlikely(!p)) 3118c0eae66eSBenny Halevy goto out_overflow; 3119cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 31201da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 31211da177e4SLinus Torvalds } 31223110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 31231da177e4SLinus Torvalds return status; 3124c0eae66eSBenny Halevy out_overflow: 3125c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3126c0eae66eSBenny Halevy return -EIO; 31271da177e4SLinus Torvalds } 31281da177e4SLinus Torvalds 31291da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31301da177e4SLinus Torvalds { 31318687b63aSAl Viro __be32 *p; 31321da177e4SLinus Torvalds int status = 0; 31331da177e4SLinus Torvalds 31341da177e4SLinus Torvalds *res = 0; 31351da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 31361da177e4SLinus Torvalds return -EIO; 31371da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3138c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3139c0eae66eSBenny Halevy if (unlikely(!p)) 3140c0eae66eSBenny Halevy goto out_overflow; 3141cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 31421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 31431da177e4SLinus Torvalds } 31443110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 31451da177e4SLinus Torvalds return status; 3146c0eae66eSBenny Halevy out_overflow: 3147c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3148c0eae66eSBenny Halevy return -EIO; 31491da177e4SLinus Torvalds } 31501da177e4SLinus Torvalds 31511da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31521da177e4SLinus Torvalds { 31538687b63aSAl Viro __be32 *p; 31541da177e4SLinus Torvalds int status = 0; 31551da177e4SLinus Torvalds 31561da177e4SLinus Torvalds *res = 0; 31571da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 31581da177e4SLinus Torvalds return -EIO; 31591da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3160c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3161c0eae66eSBenny Halevy if (unlikely(!p)) 3162c0eae66eSBenny Halevy goto out_overflow; 3163cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 31641da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 31651da177e4SLinus Torvalds } 31663110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 31671da177e4SLinus Torvalds return status; 3168c0eae66eSBenny Halevy out_overflow: 3169c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3170c0eae66eSBenny Halevy return -EIO; 31711da177e4SLinus Torvalds } 31721da177e4SLinus Torvalds 31737aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 31747aaa0b3bSManoj Naik { 3175464ad6b1SChuck Lever u32 n; 31768687b63aSAl Viro __be32 *p; 31777aaa0b3bSManoj Naik int status = 0; 31787aaa0b3bSManoj Naik 3179c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3180c0eae66eSBenny Halevy if (unlikely(!p)) 3181c0eae66eSBenny Halevy goto out_overflow; 3182cccddf4fSBenny Halevy n = be32_to_cpup(p); 318333a43f28SAndy Adamson if (n == 0) 318433a43f28SAndy Adamson goto root_path; 31857aaa0b3bSManoj Naik dprintk("path "); 31867aaa0b3bSManoj Naik path->ncomponents = 0; 31877aaa0b3bSManoj Naik while (path->ncomponents < n) { 31887aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 31897aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 31907aaa0b3bSManoj Naik if (unlikely(status != 0)) 31917aaa0b3bSManoj Naik goto out_eio; 31927aaa0b3bSManoj Naik if (path->ncomponents != n) 31937aaa0b3bSManoj Naik dprintk("/"); 31947aaa0b3bSManoj Naik dprintk("%s", component->data); 31957aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 31967aaa0b3bSManoj Naik path->ncomponents++; 31977aaa0b3bSManoj Naik else { 31987aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 31997aaa0b3bSManoj Naik goto out_eio; 32007aaa0b3bSManoj Naik } 32017aaa0b3bSManoj Naik } 32027aaa0b3bSManoj Naik out: 32037aaa0b3bSManoj Naik dprintk("\n"); 32047aaa0b3bSManoj Naik return status; 320533a43f28SAndy Adamson root_path: 320633a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 320733a43f28SAndy Adamson path->ncomponents = 1; 320833a43f28SAndy Adamson path->components[0].len=0; 320933a43f28SAndy Adamson path->components[0].data=NULL; 321033a43f28SAndy Adamson dprintk("path /\n"); 321133a43f28SAndy Adamson goto out; 32127aaa0b3bSManoj Naik out_eio: 32137aaa0b3bSManoj Naik dprintk(" status %d", status); 32147aaa0b3bSManoj Naik status = -EIO; 32157aaa0b3bSManoj Naik goto out; 3216c0eae66eSBenny Halevy out_overflow: 3217c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3218c0eae66eSBenny Halevy return -EIO; 32197aaa0b3bSManoj Naik } 32207aaa0b3bSManoj Naik 32217aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3222683b57b4STrond Myklebust { 3223683b57b4STrond Myklebust int n; 32248687b63aSAl Viro __be32 *p; 3225683b57b4STrond Myklebust int status = -EIO; 3226683b57b4STrond Myklebust 3227683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3228683b57b4STrond Myklebust goto out; 3229683b57b4STrond Myklebust status = 0; 3230683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3231683b57b4STrond Myklebust goto out; 32323110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 32337aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3234683b57b4STrond Myklebust if (unlikely(status != 0)) 3235683b57b4STrond Myklebust goto out; 3236c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3237c0eae66eSBenny Halevy if (unlikely(!p)) 3238c0eae66eSBenny Halevy goto out_overflow; 3239cccddf4fSBenny Halevy n = be32_to_cpup(p); 3240683b57b4STrond Myklebust if (n <= 0) 3241683b57b4STrond Myklebust goto out_eio; 3242683b57b4STrond Myklebust res->nlocations = 0; 3243683b57b4STrond Myklebust while (res->nlocations < n) { 3244464ad6b1SChuck Lever u32 m; 32457aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3246683b57b4STrond Myklebust 3247c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3248c0eae66eSBenny Halevy if (unlikely(!p)) 3249c0eae66eSBenny Halevy goto out_overflow; 3250cccddf4fSBenny Halevy m = be32_to_cpup(p); 32517aaa0b3bSManoj Naik 32527aaa0b3bSManoj Naik loc->nservers = 0; 32533110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 32547aaa0b3bSManoj Naik while (loc->nservers < m) { 32557aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 32567aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3257683b57b4STrond Myklebust if (unlikely(status != 0)) 3258683b57b4STrond Myklebust goto out_eio; 32597aaa0b3bSManoj Naik dprintk("%s ", server->data); 32607aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 32617aaa0b3bSManoj Naik loc->nservers++; 32627aaa0b3bSManoj Naik else { 3263464ad6b1SChuck Lever unsigned int i; 3264464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3265464ad6b1SChuck Lever "returned for location %u\n", 32663110ff80SHarvey Harrison __func__, 3267464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3268464ad6b1SChuck Lever m, res->nlocations); 32697aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 32702e42c3e2STrond Myklebust unsigned int len; 32717aaa0b3bSManoj Naik char *data; 32727aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3273683b57b4STrond Myklebust if (unlikely(status != 0)) 3274683b57b4STrond Myklebust goto out_eio; 32757aaa0b3bSManoj Naik } 32767aaa0b3bSManoj Naik } 32777aaa0b3bSManoj Naik } 32787aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 32797aaa0b3bSManoj Naik if (unlikely(status != 0)) 32807aaa0b3bSManoj Naik goto out_eio; 32817aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3282683b57b4STrond Myklebust res->nlocations++; 3283683b57b4STrond Myklebust } 3284409924e4STrond Myklebust if (res->nlocations != 0) 3285409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3286683b57b4STrond Myklebust out: 32873110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3288683b57b4STrond Myklebust return status; 3289c0eae66eSBenny Halevy out_overflow: 3290c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3291683b57b4STrond Myklebust out_eio: 3292683b57b4STrond Myklebust status = -EIO; 3293683b57b4STrond Myklebust goto out; 3294683b57b4STrond Myklebust } 3295683b57b4STrond Myklebust 32961da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 32971da177e4SLinus Torvalds { 32988687b63aSAl Viro __be32 *p; 32991da177e4SLinus Torvalds int status = 0; 33001da177e4SLinus Torvalds 33011da177e4SLinus Torvalds *res = 0; 33021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 33031da177e4SLinus Torvalds return -EIO; 33041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3305c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3306c0eae66eSBenny Halevy if (unlikely(!p)) 3307c0eae66eSBenny Halevy goto out_overflow; 3308cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 33091da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 33101da177e4SLinus Torvalds } 33113110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 33121da177e4SLinus Torvalds return status; 3313c0eae66eSBenny Halevy out_overflow: 3314c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3315c0eae66eSBenny Halevy return -EIO; 33161da177e4SLinus Torvalds } 33171da177e4SLinus Torvalds 33181da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 33191da177e4SLinus Torvalds { 33208687b63aSAl Viro __be32 *p; 33211da177e4SLinus Torvalds int status = 0; 33221da177e4SLinus Torvalds 33231da177e4SLinus Torvalds *maxlink = 1; 33241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 33251da177e4SLinus Torvalds return -EIO; 33261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3327c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3328c0eae66eSBenny Halevy if (unlikely(!p)) 3329c0eae66eSBenny Halevy goto out_overflow; 3330cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 33311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 33321da177e4SLinus Torvalds } 33333110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 33341da177e4SLinus Torvalds return status; 3335c0eae66eSBenny Halevy out_overflow: 3336c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3337c0eae66eSBenny Halevy return -EIO; 33381da177e4SLinus Torvalds } 33391da177e4SLinus Torvalds 33401da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 33411da177e4SLinus Torvalds { 33428687b63aSAl Viro __be32 *p; 33431da177e4SLinus Torvalds int status = 0; 33441da177e4SLinus Torvalds 33451da177e4SLinus Torvalds *maxname = 1024; 33461da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 33471da177e4SLinus Torvalds return -EIO; 33481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3349c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3350c0eae66eSBenny Halevy if (unlikely(!p)) 3351c0eae66eSBenny Halevy goto out_overflow; 3352cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 33531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 33541da177e4SLinus Torvalds } 33553110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 33561da177e4SLinus Torvalds return status; 3357c0eae66eSBenny Halevy out_overflow: 3358c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3359c0eae66eSBenny Halevy return -EIO; 33601da177e4SLinus Torvalds } 33611da177e4SLinus Torvalds 33621da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33631da177e4SLinus Torvalds { 33648687b63aSAl Viro __be32 *p; 33651da177e4SLinus Torvalds int status = 0; 33661da177e4SLinus Torvalds 33671da177e4SLinus Torvalds *res = 1024; 33681da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 33691da177e4SLinus Torvalds return -EIO; 33701da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 33711da177e4SLinus Torvalds uint64_t maxread; 3372c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3373c0eae66eSBenny Halevy if (unlikely(!p)) 3374c0eae66eSBenny Halevy goto out_overflow; 3375cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 33761da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 33771da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 33781da177e4SLinus Torvalds *res = (uint32_t)maxread; 33791da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 33801da177e4SLinus Torvalds } 33813110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 33821da177e4SLinus Torvalds return status; 3383c0eae66eSBenny Halevy out_overflow: 3384c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3385c0eae66eSBenny Halevy return -EIO; 33861da177e4SLinus Torvalds } 33871da177e4SLinus Torvalds 33881da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33891da177e4SLinus Torvalds { 33908687b63aSAl Viro __be32 *p; 33911da177e4SLinus Torvalds int status = 0; 33921da177e4SLinus Torvalds 33931da177e4SLinus Torvalds *res = 1024; 33941da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 33951da177e4SLinus Torvalds return -EIO; 33961da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 33971da177e4SLinus Torvalds uint64_t maxwrite; 3398c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3399c0eae66eSBenny Halevy if (unlikely(!p)) 3400c0eae66eSBenny Halevy goto out_overflow; 3401cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 34021da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 34031da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 34041da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 34051da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 34061da177e4SLinus Torvalds } 34073110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 34081da177e4SLinus Torvalds return status; 3409c0eae66eSBenny Halevy out_overflow: 3410c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3411c0eae66eSBenny Halevy return -EIO; 34121da177e4SLinus Torvalds } 34131da177e4SLinus Torvalds 3414bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 34151da177e4SLinus Torvalds { 3416bca79478STrond Myklebust uint32_t tmp; 34178687b63aSAl Viro __be32 *p; 3418409924e4STrond Myklebust int ret = 0; 34191da177e4SLinus Torvalds 34201da177e4SLinus Torvalds *mode = 0; 34211da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 34221da177e4SLinus Torvalds return -EIO; 34231da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3424c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3425c0eae66eSBenny Halevy if (unlikely(!p)) 3426c0eae66eSBenny Halevy goto out_overflow; 3427cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3428bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 34291da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3430409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 34311da177e4SLinus Torvalds } 34323110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3433409924e4STrond Myklebust return ret; 3434c0eae66eSBenny Halevy out_overflow: 3435c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3436c0eae66eSBenny Halevy return -EIO; 34371da177e4SLinus Torvalds } 34381da177e4SLinus Torvalds 34391da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 34401da177e4SLinus Torvalds { 34418687b63aSAl Viro __be32 *p; 3442409924e4STrond Myklebust int ret = 0; 34431da177e4SLinus Torvalds 34441da177e4SLinus Torvalds *nlink = 1; 34451da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 34461da177e4SLinus Torvalds return -EIO; 34471da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3448c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3449c0eae66eSBenny Halevy if (unlikely(!p)) 3450c0eae66eSBenny Halevy goto out_overflow; 3451cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 34521da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3453409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 34541da177e4SLinus Torvalds } 34553110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3456409924e4STrond Myklebust return ret; 3457c0eae66eSBenny Halevy out_overflow: 3458c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3459c0eae66eSBenny Halevy return -EIO; 34601da177e4SLinus Torvalds } 34611da177e4SLinus Torvalds 346280e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 346380e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *uid, int may_sleep) 34641da177e4SLinus Torvalds { 34658687b63aSAl Viro uint32_t len; 34668687b63aSAl Viro __be32 *p; 3467409924e4STrond Myklebust int ret = 0; 34681da177e4SLinus Torvalds 34691da177e4SLinus Torvalds *uid = -2; 34701da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 34711da177e4SLinus Torvalds return -EIO; 34721da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3473c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3474c0eae66eSBenny Halevy if (unlikely(!p)) 3475c0eae66eSBenny Halevy goto out_overflow; 3476cccddf4fSBenny Halevy len = be32_to_cpup(p); 3477c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3478c0eae66eSBenny Halevy if (unlikely(!p)) 3479c0eae66eSBenny Halevy goto out_overflow; 348080e52aceSTrond Myklebust if (!may_sleep) { 348180e52aceSTrond Myklebust /* do nothing */ 348280e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3483409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3484409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3485409924e4STrond Myklebust else 34861da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 34873110ff80SHarvey Harrison __func__); 34881da177e4SLinus Torvalds } else 3489fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 34903110ff80SHarvey Harrison __func__, len); 34911da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 34921da177e4SLinus Torvalds } 34933110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3494409924e4STrond Myklebust return ret; 3495c0eae66eSBenny Halevy out_overflow: 3496c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3497c0eae66eSBenny Halevy return -EIO; 34981da177e4SLinus Torvalds } 34991da177e4SLinus Torvalds 350080e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 350180e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *gid, int may_sleep) 35021da177e4SLinus Torvalds { 35038687b63aSAl Viro uint32_t len; 35048687b63aSAl Viro __be32 *p; 3505409924e4STrond Myklebust int ret = 0; 35061da177e4SLinus Torvalds 35071da177e4SLinus Torvalds *gid = -2; 35081da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 35091da177e4SLinus Torvalds return -EIO; 35101da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3511c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3512c0eae66eSBenny Halevy if (unlikely(!p)) 3513c0eae66eSBenny Halevy goto out_overflow; 3514cccddf4fSBenny Halevy len = be32_to_cpup(p); 3515c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3516c0eae66eSBenny Halevy if (unlikely(!p)) 3517c0eae66eSBenny Halevy goto out_overflow; 351880e52aceSTrond Myklebust if (!may_sleep) { 351980e52aceSTrond Myklebust /* do nothing */ 352080e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3521409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3522409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3523409924e4STrond Myklebust else 35241da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 35253110ff80SHarvey Harrison __func__); 35261da177e4SLinus Torvalds } else 3527fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 35283110ff80SHarvey Harrison __func__, len); 35291da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 35301da177e4SLinus Torvalds } 35313110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3532409924e4STrond Myklebust return ret; 3533c0eae66eSBenny Halevy out_overflow: 3534c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3535c0eae66eSBenny Halevy return -EIO; 35361da177e4SLinus Torvalds } 35371da177e4SLinus Torvalds 35381da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 35391da177e4SLinus Torvalds { 35408687b63aSAl Viro uint32_t major = 0, minor = 0; 35418687b63aSAl Viro __be32 *p; 3542409924e4STrond Myklebust int ret = 0; 35431da177e4SLinus Torvalds 35441da177e4SLinus Torvalds *rdev = MKDEV(0,0); 35451da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 35461da177e4SLinus Torvalds return -EIO; 35471da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 35481da177e4SLinus Torvalds dev_t tmp; 35491da177e4SLinus Torvalds 3550c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3551c0eae66eSBenny Halevy if (unlikely(!p)) 3552c0eae66eSBenny Halevy goto out_overflow; 35536f723f77SBenny Halevy major = be32_to_cpup(p++); 3554cccddf4fSBenny Halevy minor = be32_to_cpup(p); 35551da177e4SLinus Torvalds tmp = MKDEV(major, minor); 35561da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 35571da177e4SLinus Torvalds *rdev = tmp; 35581da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3559409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 35601da177e4SLinus Torvalds } 35613110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3562409924e4STrond Myklebust return ret; 3563c0eae66eSBenny Halevy out_overflow: 3564c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3565c0eae66eSBenny Halevy return -EIO; 35661da177e4SLinus Torvalds } 35671da177e4SLinus Torvalds 35681da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35691da177e4SLinus Torvalds { 35708687b63aSAl Viro __be32 *p; 35711da177e4SLinus Torvalds int status = 0; 35721da177e4SLinus Torvalds 35731da177e4SLinus Torvalds *res = 0; 35741da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 35751da177e4SLinus Torvalds return -EIO; 35761da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3577c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3578c0eae66eSBenny Halevy if (unlikely(!p)) 3579c0eae66eSBenny Halevy goto out_overflow; 3580cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35811da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 35821da177e4SLinus Torvalds } 35833110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 35841da177e4SLinus Torvalds return status; 3585c0eae66eSBenny Halevy out_overflow: 3586c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3587c0eae66eSBenny Halevy return -EIO; 35881da177e4SLinus Torvalds } 35891da177e4SLinus Torvalds 35901da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35911da177e4SLinus Torvalds { 35928687b63aSAl Viro __be32 *p; 35931da177e4SLinus Torvalds int status = 0; 35941da177e4SLinus Torvalds 35951da177e4SLinus Torvalds *res = 0; 35961da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 35971da177e4SLinus Torvalds return -EIO; 35981da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3599c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3600c0eae66eSBenny Halevy if (unlikely(!p)) 3601c0eae66eSBenny Halevy goto out_overflow; 3602cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36031da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 36041da177e4SLinus Torvalds } 36053110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 36061da177e4SLinus Torvalds return status; 3607c0eae66eSBenny Halevy out_overflow: 3608c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3609c0eae66eSBenny Halevy return -EIO; 36101da177e4SLinus Torvalds } 36111da177e4SLinus Torvalds 36121da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36131da177e4SLinus Torvalds { 36148687b63aSAl Viro __be32 *p; 36151da177e4SLinus Torvalds int status = 0; 36161da177e4SLinus Torvalds 36171da177e4SLinus Torvalds *res = 0; 36181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 36191da177e4SLinus Torvalds return -EIO; 36201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3621c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3622c0eae66eSBenny Halevy if (unlikely(!p)) 3623c0eae66eSBenny Halevy goto out_overflow; 3624cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 36261da177e4SLinus Torvalds } 36273110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 36281da177e4SLinus Torvalds return status; 3629c0eae66eSBenny Halevy out_overflow: 3630c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3631c0eae66eSBenny Halevy return -EIO; 36321da177e4SLinus Torvalds } 36331da177e4SLinus Torvalds 36341da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 36351da177e4SLinus Torvalds { 36368687b63aSAl Viro __be32 *p; 3637409924e4STrond Myklebust int ret = 0; 36381da177e4SLinus Torvalds 36391da177e4SLinus Torvalds *used = 0; 36401da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 36411da177e4SLinus Torvalds return -EIO; 36421da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3643c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3644c0eae66eSBenny Halevy if (unlikely(!p)) 3645c0eae66eSBenny Halevy goto out_overflow; 3646cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 36471da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3648409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 36491da177e4SLinus Torvalds } 36503110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 36511da177e4SLinus Torvalds (unsigned long long)*used); 3652409924e4STrond Myklebust return ret; 3653c0eae66eSBenny Halevy out_overflow: 3654c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3655c0eae66eSBenny Halevy return -EIO; 36561da177e4SLinus Torvalds } 36571da177e4SLinus Torvalds 36581da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 36591da177e4SLinus Torvalds { 36608687b63aSAl Viro __be32 *p; 36611da177e4SLinus Torvalds uint64_t sec; 36621da177e4SLinus Torvalds uint32_t nsec; 36631da177e4SLinus Torvalds 3664c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3665c0eae66eSBenny Halevy if (unlikely(!p)) 3666c0eae66eSBenny Halevy goto out_overflow; 36673ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3668cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 36691da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 36701da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 36711da177e4SLinus Torvalds return 0; 3672c0eae66eSBenny Halevy out_overflow: 3673c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3674c0eae66eSBenny Halevy return -EIO; 36751da177e4SLinus Torvalds } 36761da177e4SLinus Torvalds 36771da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36781da177e4SLinus Torvalds { 36791da177e4SLinus Torvalds int status = 0; 36801da177e4SLinus Torvalds 36811da177e4SLinus Torvalds time->tv_sec = 0; 36821da177e4SLinus Torvalds time->tv_nsec = 0; 36831da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 36841da177e4SLinus Torvalds return -EIO; 36851da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 36861da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3687409924e4STrond Myklebust if (status == 0) 3688409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 36891da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 36901da177e4SLinus Torvalds } 36913110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 36921da177e4SLinus Torvalds return status; 36931da177e4SLinus Torvalds } 36941da177e4SLinus Torvalds 36951da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 36961da177e4SLinus Torvalds { 36971da177e4SLinus Torvalds int status = 0; 36981da177e4SLinus Torvalds 36991da177e4SLinus Torvalds time->tv_sec = 0; 37001da177e4SLinus Torvalds time->tv_nsec = 0; 37011da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 37021da177e4SLinus Torvalds return -EIO; 37031da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 37041da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3705409924e4STrond Myklebust if (status == 0) 3706409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 37071da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 37081da177e4SLinus Torvalds } 37093110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 37101da177e4SLinus Torvalds return status; 37111da177e4SLinus Torvalds } 37121da177e4SLinus Torvalds 371355b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 371455b6e774SRicardo Labiaga struct timespec *time) 371555b6e774SRicardo Labiaga { 371655b6e774SRicardo Labiaga int status = 0; 371755b6e774SRicardo Labiaga 371855b6e774SRicardo Labiaga time->tv_sec = 0; 371955b6e774SRicardo Labiaga time->tv_nsec = 0; 372055b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 372155b6e774SRicardo Labiaga return -EIO; 372255b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 372355b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 372455b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 372555b6e774SRicardo Labiaga } 372655b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 372755b6e774SRicardo Labiaga (long)time->tv_nsec); 372855b6e774SRicardo Labiaga return status; 372955b6e774SRicardo Labiaga } 373055b6e774SRicardo Labiaga 37311da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 37321da177e4SLinus Torvalds { 37331da177e4SLinus Torvalds int status = 0; 37341da177e4SLinus Torvalds 37351da177e4SLinus Torvalds time->tv_sec = 0; 37361da177e4SLinus Torvalds time->tv_nsec = 0; 37371da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 37381da177e4SLinus Torvalds return -EIO; 37391da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 37401da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3741409924e4STrond Myklebust if (status == 0) 3742409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 37431da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 37441da177e4SLinus Torvalds } 37453110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 37461da177e4SLinus Torvalds return status; 37471da177e4SLinus Torvalds } 37481da177e4SLinus Torvalds 37498687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 37501da177e4SLinus Torvalds { 37511da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 37521da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 37531da177e4SLinus Torvalds 37541da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3755fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3756fe82a183SChuck Lever "%u %c %u\n", 37573110ff80SHarvey Harrison __func__, 37581da177e4SLinus Torvalds attrwords << 2, 37591da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 37601da177e4SLinus Torvalds nwords << 2); 37611da177e4SLinus Torvalds return -EIO; 37621da177e4SLinus Torvalds } 37631da177e4SLinus Torvalds return 0; 37641da177e4SLinus Torvalds } 37651da177e4SLinus Torvalds 37661da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 37671da177e4SLinus Torvalds { 37688687b63aSAl Viro __be32 *p; 37691da177e4SLinus Torvalds 3770c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3771c0eae66eSBenny Halevy if (unlikely(!p)) 3772c0eae66eSBenny Halevy goto out_overflow; 37736f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 37743ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3775cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 37761da177e4SLinus Torvalds return 0; 3777c0eae66eSBenny Halevy out_overflow: 3778c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3779c0eae66eSBenny Halevy return -EIO; 37801da177e4SLinus Torvalds } 37811da177e4SLinus Torvalds 37821da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 37831da177e4SLinus Torvalds { 37848687b63aSAl Viro __be32 *p; 37851da177e4SLinus Torvalds uint32_t supp, acc; 37861da177e4SLinus Torvalds int status; 37871da177e4SLinus Torvalds 37881da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 37891da177e4SLinus Torvalds if (status) 37901da177e4SLinus Torvalds return status; 3791c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3792c0eae66eSBenny Halevy if (unlikely(!p)) 3793c0eae66eSBenny Halevy goto out_overflow; 37946f723f77SBenny Halevy supp = be32_to_cpup(p++); 3795cccddf4fSBenny Halevy acc = be32_to_cpup(p); 37961da177e4SLinus Torvalds access->supported = supp; 37971da177e4SLinus Torvalds access->access = acc; 37981da177e4SLinus Torvalds return 0; 3799c0eae66eSBenny Halevy out_overflow: 3800c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3801c0eae66eSBenny Halevy return -EIO; 38021da177e4SLinus Torvalds } 38031da177e4SLinus Torvalds 380407d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 38051da177e4SLinus Torvalds { 38068687b63aSAl Viro __be32 *p; 380707d30434SBenny Halevy 380807d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 380907d30434SBenny Halevy if (likely(p)) { 381007d30434SBenny Halevy memcpy(buf, p, len); 381107d30434SBenny Halevy return 0; 381207d30434SBenny Halevy } 381307d30434SBenny Halevy print_overflow_msg(__func__, xdr); 381407d30434SBenny Halevy return -EIO; 381507d30434SBenny Halevy } 381607d30434SBenny Halevy 381707d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 381807d30434SBenny Halevy { 381907d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 38201da177e4SLinus Torvalds } 38211da177e4SLinus Torvalds 38221da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 38231da177e4SLinus Torvalds { 38241da177e4SLinus Torvalds int status; 38251da177e4SLinus Torvalds 38261da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3827c1d51931STrond Myklebust if (status != -EIO) 3828c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 382907d30434SBenny Halevy if (!status) 383007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 38311da177e4SLinus Torvalds return status; 38321da177e4SLinus Torvalds } 38331da177e4SLinus Torvalds 3834db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3835db942bbdSBenny Halevy { 3836db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 38371da177e4SLinus Torvalds } 38381da177e4SLinus Torvalds 38391da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 38401da177e4SLinus Torvalds { 38411da177e4SLinus Torvalds int status; 38421da177e4SLinus Torvalds 38431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3844db942bbdSBenny Halevy if (!status) 3845db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 38461da177e4SLinus Torvalds return status; 38471da177e4SLinus Torvalds } 38481da177e4SLinus Torvalds 38491da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 38501da177e4SLinus Torvalds { 38518687b63aSAl Viro __be32 *p; 38521da177e4SLinus Torvalds uint32_t bmlen; 38531da177e4SLinus Torvalds int status; 38541da177e4SLinus Torvalds 38551da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 38561da177e4SLinus Torvalds if (status) 38571da177e4SLinus Torvalds return status; 38581da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 38591da177e4SLinus Torvalds return status; 3860c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3861c0eae66eSBenny Halevy if (unlikely(!p)) 3862c0eae66eSBenny Halevy goto out_overflow; 3863cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3864c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3865c0eae66eSBenny Halevy if (likely(p)) 38661da177e4SLinus Torvalds return 0; 3867c0eae66eSBenny Halevy out_overflow: 3868c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3869c0eae66eSBenny Halevy return -EIO; 38701da177e4SLinus Torvalds } 38711da177e4SLinus Torvalds 38721da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 38731da177e4SLinus Torvalds { 38748687b63aSAl Viro __be32 *savep; 38756c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 38761da177e4SLinus Torvalds int status; 38771da177e4SLinus Torvalds 38781da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38791da177e4SLinus Torvalds goto xdr_error; 38801da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38811da177e4SLinus Torvalds goto xdr_error; 38821da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38831da177e4SLinus Torvalds goto xdr_error; 38841da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 38851da177e4SLinus Torvalds goto xdr_error; 38861da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 38871da177e4SLinus Torvalds goto xdr_error; 38881da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 38891da177e4SLinus Torvalds goto xdr_error; 38901da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 38911da177e4SLinus Torvalds goto xdr_error; 38921da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38931da177e4SLinus Torvalds xdr_error: 38943110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38951da177e4SLinus Torvalds return status; 38961da177e4SLinus Torvalds } 38971da177e4SLinus Torvalds 38981da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 38991da177e4SLinus Torvalds { 39008687b63aSAl Viro __be32 *savep; 39016c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 39021da177e4SLinus Torvalds int status; 39031da177e4SLinus Torvalds 39041da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 39051da177e4SLinus Torvalds goto xdr_error; 39061da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 39071da177e4SLinus Torvalds goto xdr_error; 39081da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 39091da177e4SLinus Torvalds goto xdr_error; 39101da177e4SLinus Torvalds 39111da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 39121da177e4SLinus Torvalds goto xdr_error; 39131da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 39141da177e4SLinus Torvalds goto xdr_error; 39151da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 39161da177e4SLinus Torvalds goto xdr_error; 39171da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 39181da177e4SLinus Torvalds goto xdr_error; 39191da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 39201da177e4SLinus Torvalds goto xdr_error; 39211da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 39221da177e4SLinus Torvalds goto xdr_error; 39231da177e4SLinus Torvalds 39241da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 39251da177e4SLinus Torvalds xdr_error: 39263110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 39271da177e4SLinus Torvalds return status; 39281da177e4SLinus Torvalds } 39291da177e4SLinus Torvalds 39301da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 39311da177e4SLinus Torvalds { 39328687b63aSAl Viro __be32 *savep; 39336c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 39341da177e4SLinus Torvalds int status; 39351da177e4SLinus Torvalds 39361da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 39371da177e4SLinus Torvalds goto xdr_error; 39381da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 39391da177e4SLinus Torvalds goto xdr_error; 39401da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 39411da177e4SLinus Torvalds goto xdr_error; 39421da177e4SLinus Torvalds 39431da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 39441da177e4SLinus Torvalds goto xdr_error; 39451da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 39461da177e4SLinus Torvalds goto xdr_error; 39471da177e4SLinus Torvalds 39481da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 39491da177e4SLinus Torvalds xdr_error: 39503110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 39511da177e4SLinus Torvalds return status; 39521da177e4SLinus Torvalds } 39531da177e4SLinus Torvalds 3954ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 3955ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 395680e52aceSTrond Myklebust const struct nfs_server *server, int may_sleep) 39571da177e4SLinus Torvalds { 3958bca79478STrond Myklebust int status; 3959bca79478STrond Myklebust umode_t fmode = 0; 396099baf625SManoj Naik uint64_t fileid; 3961ae42c70aSBryan Schumaker uint32_t type; 39621da177e4SLinus Torvalds 3963f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3964f26c7a78STrond Myklebust if (status < 0) 39651da177e4SLinus Torvalds goto xdr_error; 3966409924e4STrond Myklebust fattr->mode = 0; 3967409924e4STrond Myklebust if (status != 0) { 3968409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3969409924e4STrond Myklebust fattr->valid |= status; 3970409924e4STrond Myklebust } 39711da177e4SLinus Torvalds 3972f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3973f26c7a78STrond Myklebust if (status < 0) 39741da177e4SLinus Torvalds goto xdr_error; 3975409924e4STrond Myklebust fattr->valid |= status; 3976f26c7a78STrond Myklebust 3977f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3978f26c7a78STrond Myklebust if (status < 0) 39791da177e4SLinus Torvalds goto xdr_error; 3980409924e4STrond Myklebust fattr->valid |= status; 3981f26c7a78STrond Myklebust 3982f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3983f26c7a78STrond Myklebust if (status < 0) 39841da177e4SLinus Torvalds goto xdr_error; 3985409924e4STrond Myklebust fattr->valid |= status; 3986f26c7a78STrond Myklebust 3987ae42c70aSBryan Schumaker status = decode_attr_error(xdr, bitmap); 3988ae42c70aSBryan Schumaker if (status < 0) 3989ae42c70aSBryan Schumaker goto xdr_error; 3990ae42c70aSBryan Schumaker 3991ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 3992ae42c70aSBryan Schumaker if (status < 0) 3993ae42c70aSBryan Schumaker goto xdr_error; 3994ae42c70aSBryan Schumaker 3995f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3996f26c7a78STrond Myklebust if (status < 0) 39971da177e4SLinus Torvalds goto xdr_error; 3998409924e4STrond Myklebust fattr->valid |= status; 3999f26c7a78STrond Myklebust 4000f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 40017aaa0b3bSManoj Naik struct nfs4_fs_locations, 4002f26c7a78STrond Myklebust fattr)); 4003f26c7a78STrond Myklebust if (status < 0) 4004683b57b4STrond Myklebust goto xdr_error; 4005409924e4STrond Myklebust fattr->valid |= status; 4006f26c7a78STrond Myklebust 4007f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4008f26c7a78STrond Myklebust if (status < 0) 40091da177e4SLinus Torvalds goto xdr_error; 4010409924e4STrond Myklebust if (status != 0) { 40111da177e4SLinus Torvalds fattr->mode |= fmode; 4012409924e4STrond Myklebust fattr->valid |= status; 4013409924e4STrond Myklebust } 4014f26c7a78STrond Myklebust 4015f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4016f26c7a78STrond Myklebust if (status < 0) 40171da177e4SLinus Torvalds goto xdr_error; 4018409924e4STrond Myklebust fattr->valid |= status; 4019f26c7a78STrond Myklebust 402080e52aceSTrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, 402180e52aceSTrond Myklebust &fattr->uid, may_sleep); 4022f26c7a78STrond Myklebust if (status < 0) 40231da177e4SLinus Torvalds goto xdr_error; 4024409924e4STrond Myklebust fattr->valid |= status; 4025f26c7a78STrond Myklebust 402680e52aceSTrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, 402780e52aceSTrond Myklebust &fattr->gid, may_sleep); 4028f26c7a78STrond Myklebust if (status < 0) 40291da177e4SLinus Torvalds goto xdr_error; 4030409924e4STrond Myklebust fattr->valid |= status; 4031f26c7a78STrond Myklebust 4032f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4033f26c7a78STrond Myklebust if (status < 0) 40341da177e4SLinus Torvalds goto xdr_error; 4035409924e4STrond Myklebust fattr->valid |= status; 4036f26c7a78STrond Myklebust 4037f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4038f26c7a78STrond Myklebust if (status < 0) 40391da177e4SLinus Torvalds goto xdr_error; 4040409924e4STrond Myklebust fattr->valid |= status; 4041f26c7a78STrond Myklebust 4042f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4043f26c7a78STrond Myklebust if (status < 0) 40441da177e4SLinus Torvalds goto xdr_error; 4045409924e4STrond Myklebust fattr->valid |= status; 4046f26c7a78STrond Myklebust 4047f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4048f26c7a78STrond Myklebust if (status < 0) 40491da177e4SLinus Torvalds goto xdr_error; 4050409924e4STrond Myklebust fattr->valid |= status; 4051f26c7a78STrond Myklebust 4052f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4053f26c7a78STrond Myklebust if (status < 0) 40541da177e4SLinus Torvalds goto xdr_error; 4055409924e4STrond Myklebust fattr->valid |= status; 4056f26c7a78STrond Myklebust 4057f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 4058f26c7a78STrond Myklebust if (status < 0) 405999baf625SManoj Naik goto xdr_error; 40603201f3ddSTrond Myklebust if (status != 0 && !(fattr->valid & status)) { 406199baf625SManoj Naik fattr->fileid = fileid; 4062409924e4STrond Myklebust fattr->valid |= status; 4063409924e4STrond Myklebust } 4064f26c7a78STrond Myklebust 4065ae42c70aSBryan Schumaker xdr_error: 4066ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4067ae42c70aSBryan Schumaker return status; 4068ae42c70aSBryan Schumaker } 4069ae42c70aSBryan Schumaker 4070ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4071ae42c70aSBryan Schumaker struct nfs_fh *fh, const struct nfs_server *server, int may_sleep) 4072ae42c70aSBryan Schumaker { 4073ae42c70aSBryan Schumaker __be32 *savep; 4074ae42c70aSBryan Schumaker uint32_t attrlen, 4075ae42c70aSBryan Schumaker bitmap[2] = {0}; 4076ae42c70aSBryan Schumaker int status; 4077ae42c70aSBryan Schumaker 4078ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4079ae42c70aSBryan Schumaker if (status < 0) 4080ae42c70aSBryan Schumaker goto xdr_error; 4081ae42c70aSBryan Schumaker 4082ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4083ae42c70aSBryan Schumaker if (status < 0) 4084ae42c70aSBryan Schumaker goto xdr_error; 4085ae42c70aSBryan Schumaker 4086ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4087ae42c70aSBryan Schumaker if (status < 0) 4088ae42c70aSBryan Schumaker goto xdr_error; 4089ae42c70aSBryan Schumaker 4090ae42c70aSBryan Schumaker status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep); 4091ae42c70aSBryan Schumaker if (status < 0) 4092ae42c70aSBryan Schumaker goto xdr_error; 4093ae42c70aSBryan Schumaker 4094f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 40951da177e4SLinus Torvalds xdr_error: 40963110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 40971da177e4SLinus Torvalds return status; 40981da177e4SLinus Torvalds } 40991da177e4SLinus Torvalds 4100ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4101ae42c70aSBryan Schumaker const struct nfs_server *server, int may_sleep) 4102ae42c70aSBryan Schumaker { 4103ae42c70aSBryan Schumaker return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep); 4104ae42c70aSBryan Schumaker } 41051da177e4SLinus Torvalds 4106504913fbSAndy Adamson /* 4107504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4108504913fbSAndy Adamson * one layout driver per file system. 4109504913fbSAndy Adamson */ 4110504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4111504913fbSAndy Adamson uint32_t *layouttype) 4112504913fbSAndy Adamson { 4113504913fbSAndy Adamson uint32_t *p; 4114504913fbSAndy Adamson int num; 4115504913fbSAndy Adamson 4116504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4117504913fbSAndy Adamson if (unlikely(!p)) 4118504913fbSAndy Adamson goto out_overflow; 4119504913fbSAndy Adamson num = be32_to_cpup(p); 4120504913fbSAndy Adamson 4121504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4122504913fbSAndy Adamson if (num == 0) { 4123504913fbSAndy Adamson *layouttype = 0; 4124504913fbSAndy Adamson return 0; 4125504913fbSAndy Adamson } 4126504913fbSAndy Adamson if (num > 1) 4127504913fbSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers " 4128504913fbSAndy Adamson "per filesystem not supported\n", __func__); 4129504913fbSAndy Adamson 4130504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4131504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4132504913fbSAndy Adamson if (unlikely(!p)) 4133504913fbSAndy Adamson goto out_overflow; 4134504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4135504913fbSAndy Adamson return 0; 4136504913fbSAndy Adamson out_overflow: 4137504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4138504913fbSAndy Adamson return -EIO; 4139504913fbSAndy Adamson } 4140504913fbSAndy Adamson 4141504913fbSAndy Adamson /* 4142504913fbSAndy Adamson * The type of file system exported. 4143504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4144504913fbSAndy Adamson */ 4145504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4146504913fbSAndy Adamson uint32_t *layouttype) 4147504913fbSAndy Adamson { 4148504913fbSAndy Adamson int status = 0; 4149504913fbSAndy Adamson 4150504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4151504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4152504913fbSAndy Adamson return -EIO; 4153504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4154504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4155504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4156504913fbSAndy Adamson } else 4157504913fbSAndy Adamson *layouttype = 0; 4158504913fbSAndy Adamson return status; 4159504913fbSAndy Adamson } 4160504913fbSAndy Adamson 41611da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 41621da177e4SLinus Torvalds { 41638687b63aSAl Viro __be32 *savep; 41641da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 41651da177e4SLinus Torvalds int status; 41661da177e4SLinus Torvalds 41671da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 41681da177e4SLinus Torvalds goto xdr_error; 41691da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 41701da177e4SLinus Torvalds goto xdr_error; 41711da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 41721da177e4SLinus Torvalds goto xdr_error; 41731da177e4SLinus Torvalds 41741da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 41751da177e4SLinus Torvalds 41761da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 41771da177e4SLinus Torvalds goto xdr_error; 41781da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 41791da177e4SLinus Torvalds goto xdr_error; 41801da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 41811da177e4SLinus Torvalds goto xdr_error; 41821da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 41831da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 41841da177e4SLinus Torvalds goto xdr_error; 41851da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 418655b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 418755b6e774SRicardo Labiaga if (status != 0) 418855b6e774SRicardo Labiaga goto xdr_error; 4189504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4190504913fbSAndy Adamson if (status != 0) 4191504913fbSAndy Adamson goto xdr_error; 41921da177e4SLinus Torvalds 41931da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 41941da177e4SLinus Torvalds xdr_error: 41953110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 41961da177e4SLinus Torvalds return status; 41971da177e4SLinus Torvalds } 41981da177e4SLinus Torvalds 41991da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 42001da177e4SLinus Torvalds { 42018687b63aSAl Viro __be32 *p; 42021da177e4SLinus Torvalds uint32_t len; 42031da177e4SLinus Torvalds int status; 42041da177e4SLinus Torvalds 42059936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 42069936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 42079936781dSTrond Myklebust 42081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 42091da177e4SLinus Torvalds if (status) 42101da177e4SLinus Torvalds return status; 42111da177e4SLinus Torvalds 4212c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4213c0eae66eSBenny Halevy if (unlikely(!p)) 4214c0eae66eSBenny Halevy goto out_overflow; 4215cccddf4fSBenny Halevy len = be32_to_cpup(p); 42161da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 42171da177e4SLinus Torvalds return -EIO; 42181da177e4SLinus Torvalds fh->size = len; 4219c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4220c0eae66eSBenny Halevy if (unlikely(!p)) 4221c0eae66eSBenny Halevy goto out_overflow; 422299398d06SBenny Halevy memcpy(fh->data, p, len); 42231da177e4SLinus Torvalds return 0; 4224c0eae66eSBenny Halevy out_overflow: 4225c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4226c0eae66eSBenny Halevy return -EIO; 42271da177e4SLinus Torvalds } 42281da177e4SLinus Torvalds 42291da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42301da177e4SLinus Torvalds { 42311da177e4SLinus Torvalds int status; 42321da177e4SLinus Torvalds 42331da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 42341da177e4SLinus Torvalds if (status) 42351da177e4SLinus Torvalds return status; 42361da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 42371da177e4SLinus Torvalds } 42381da177e4SLinus Torvalds 42391da177e4SLinus Torvalds /* 42401da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 42411da177e4SLinus Torvalds */ 4242911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 42431da177e4SLinus Torvalds { 4244911d1aafSTrond Myklebust uint64_t offset, length, clientid; 42458687b63aSAl Viro __be32 *p; 4246911d1aafSTrond Myklebust uint32_t namelen, type; 42471da177e4SLinus Torvalds 4248babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4249c0eae66eSBenny Halevy if (unlikely(!p)) 4250c0eae66eSBenny Halevy goto out_overflow; 4251babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 42523ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4253babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4254babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4255911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4256911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4257911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4258911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4259911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4260911d1aafSTrond Myklebust if (type & 1) 4261911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4262911d1aafSTrond Myklebust fl->fl_pid = 0; 4263911d1aafSTrond Myklebust } 4264babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4265babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4266babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4267c0eae66eSBenny Halevy if (likely(p)) 42681da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4269c0eae66eSBenny Halevy out_overflow: 4270c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4271c0eae66eSBenny Halevy return -EIO; 42721da177e4SLinus Torvalds } 42731da177e4SLinus Torvalds 4274911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 42751da177e4SLinus Torvalds { 42761da177e4SLinus Torvalds int status; 42771da177e4SLinus Torvalds 42781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4279c1d51931STrond Myklebust if (status == -EIO) 4280c1d51931STrond Myklebust goto out; 42811da177e4SLinus Torvalds if (status == 0) { 428207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 428307d30434SBenny Halevy if (unlikely(status)) 428407d30434SBenny Halevy goto out; 42851da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4286c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4287c1d51931STrond Myklebust if (res->open_seqid != NULL) 4288c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4289c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4290c1d51931STrond Myklebust out: 42911da177e4SLinus Torvalds return status; 42921da177e4SLinus Torvalds } 42931da177e4SLinus Torvalds 4294911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 42951da177e4SLinus Torvalds { 42961da177e4SLinus Torvalds int status; 42971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 42981da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4299911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 43001da177e4SLinus Torvalds return status; 43011da177e4SLinus Torvalds } 43021da177e4SLinus Torvalds 4303911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 43041da177e4SLinus Torvalds { 43051da177e4SLinus Torvalds int status; 43061da177e4SLinus Torvalds 43071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4308c1d51931STrond Myklebust if (status != -EIO) 4309c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 431007d30434SBenny Halevy if (status == 0) 431107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43121da177e4SLinus Torvalds return status; 43131da177e4SLinus Torvalds } 43141da177e4SLinus Torvalds 4315d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4316d3c7b7ccSTrond Myklebust { 4317d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4318d3c7b7ccSTrond Myklebust } 4319d3c7b7ccSTrond Myklebust 43201da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 43211da177e4SLinus Torvalds { 43221da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 43231da177e4SLinus Torvalds } 43241da177e4SLinus Torvalds 43251da177e4SLinus Torvalds /* This is too sick! */ 43261da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 43271da177e4SLinus Torvalds { 43288687b63aSAl Viro __be32 *p; 43291da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 43301da177e4SLinus Torvalds 4331c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4332c0eae66eSBenny Halevy if (unlikely(!p)) 4333c0eae66eSBenny Halevy goto out_overflow; 43346f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 43351da177e4SLinus Torvalds switch (limit_type) { 43361da177e4SLinus Torvalds case 1: 4337cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 43381da177e4SLinus Torvalds break; 43391da177e4SLinus Torvalds case 2: 43406f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4341cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 43421da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 43431da177e4SLinus Torvalds } 43441da177e4SLinus Torvalds return 0; 4345c0eae66eSBenny Halevy out_overflow: 4346c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4347c0eae66eSBenny Halevy return -EIO; 43481da177e4SLinus Torvalds } 43491da177e4SLinus Torvalds 43501da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 43511da177e4SLinus Torvalds { 43528687b63aSAl Viro __be32 *p; 43531da177e4SLinus Torvalds uint32_t delegation_type; 435407d30434SBenny Halevy int status; 43551da177e4SLinus Torvalds 4356c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4357c0eae66eSBenny Halevy if (unlikely(!p)) 4358c0eae66eSBenny Halevy goto out_overflow; 4359cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 43601da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 43611da177e4SLinus Torvalds res->delegation_type = 0; 43621da177e4SLinus Torvalds return 0; 43631da177e4SLinus Torvalds } 436407d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 436507d30434SBenny Halevy if (unlikely(status)) 436607d30434SBenny Halevy return status; 4367c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4368c0eae66eSBenny Halevy if (unlikely(!p)) 4369c0eae66eSBenny Halevy goto out_overflow; 4370cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 437105d564feSAndy Adamson 43721da177e4SLinus Torvalds switch (delegation_type) { 43731da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 43741da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 43751da177e4SLinus Torvalds break; 43761da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 43771da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 43781da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 43791da177e4SLinus Torvalds return -EIO; 43801da177e4SLinus Torvalds } 43817539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4382c0eae66eSBenny Halevy out_overflow: 4383c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4384c0eae66eSBenny Halevy return -EIO; 43851da177e4SLinus Torvalds } 43861da177e4SLinus Torvalds 43871da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 43881da177e4SLinus Torvalds { 43898687b63aSAl Viro __be32 *p; 4390aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 43911da177e4SLinus Torvalds int status; 43921da177e4SLinus Torvalds 43931da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4394c1d51931STrond Myklebust if (status != -EIO) 4395c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 439607d30434SBenny Halevy if (!status) 439707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 439807d30434SBenny Halevy if (unlikely(status)) 43991da177e4SLinus Torvalds return status; 44001da177e4SLinus Torvalds 44011da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 44021da177e4SLinus Torvalds 4403c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4404c0eae66eSBenny Halevy if (unlikely(!p)) 4405c0eae66eSBenny Halevy goto out_overflow; 44066f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4407cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 44081da177e4SLinus Torvalds if (bmlen > 10) 44091da177e4SLinus Torvalds goto xdr_error; 44101da177e4SLinus Torvalds 4411c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4412c0eae66eSBenny Halevy if (unlikely(!p)) 4413c0eae66eSBenny Halevy goto out_overflow; 4414aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4415aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 44166f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4417aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4418aa53ed54SJeff Layton res->attrset[i] = 0; 4419aa53ed54SJeff Layton 44201da177e4SLinus Torvalds return decode_delegation(xdr, res); 44211da177e4SLinus Torvalds xdr_error: 44223110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 44231da177e4SLinus Torvalds return -EIO; 4424c0eae66eSBenny Halevy out_overflow: 4425c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4426c0eae66eSBenny Halevy return -EIO; 44271da177e4SLinus Torvalds } 44281da177e4SLinus Torvalds 44291da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 44301da177e4SLinus Torvalds { 44311da177e4SLinus Torvalds int status; 44321da177e4SLinus Torvalds 44331da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4434c1d51931STrond Myklebust if (status != -EIO) 4435c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 443607d30434SBenny Halevy if (!status) 443707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 44381da177e4SLinus Torvalds return status; 44391da177e4SLinus Torvalds } 44401da177e4SLinus Torvalds 44411da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 44421da177e4SLinus Torvalds { 44431da177e4SLinus Torvalds int status; 44441da177e4SLinus Torvalds 44451da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4446c1d51931STrond Myklebust if (status != -EIO) 4447c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 444807d30434SBenny Halevy if (!status) 444907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 44501da177e4SLinus Torvalds return status; 44511da177e4SLinus Torvalds } 44521da177e4SLinus Torvalds 44531da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 44541da177e4SLinus Torvalds { 44551da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 44561da177e4SLinus Torvalds } 44571da177e4SLinus Torvalds 44581da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 44591da177e4SLinus Torvalds { 44601da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 44611da177e4SLinus Torvalds } 44621da177e4SLinus Torvalds 44631da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 44641da177e4SLinus Torvalds { 44651da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 44668687b63aSAl Viro __be32 *p; 44671da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 44681da177e4SLinus Torvalds int status; 44691da177e4SLinus Torvalds 44701da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 44711da177e4SLinus Torvalds if (status) 44721da177e4SLinus Torvalds return status; 4473c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4474c0eae66eSBenny Halevy if (unlikely(!p)) 4475c0eae66eSBenny Halevy goto out_overflow; 44766f723f77SBenny Halevy eof = be32_to_cpup(p++); 4477cccddf4fSBenny Halevy count = be32_to_cpup(p); 44781da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 44791da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 44801da177e4SLinus Torvalds if (count > recvd) { 4481fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 44821da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 44831da177e4SLinus Torvalds count = recvd; 44841da177e4SLinus Torvalds eof = 0; 44851da177e4SLinus Torvalds } 44861da177e4SLinus Torvalds xdr_read_pages(xdr, count); 44871da177e4SLinus Torvalds res->eof = eof; 44881da177e4SLinus Torvalds res->count = count; 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_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 44961da177e4SLinus Torvalds { 44971da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 44981da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4499bcecff77SChuck Lever size_t hdrlen; 4500bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 4501bcecff77SChuck Lever int status; 45021da177e4SLinus Torvalds 45031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4504db942bbdSBenny Halevy if (!status) 4505db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4506db942bbdSBenny Halevy if (unlikely(status)) 45071da177e4SLinus Torvalds return status; 450844109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 450944109241SFred Isaman __func__, 4510eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4511eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4512eadf4598STrond Myklebust 45131da177e4SLinus Torvalds 4514db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 45151da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 45161da177e4SLinus Torvalds if (pglen > recvd) 45171da177e4SLinus Torvalds pglen = recvd; 45181da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 45191da177e4SLinus Torvalds 45207bda2cdfSJeff Layton 45211da177e4SLinus Torvalds return 0; 45221da177e4SLinus Torvalds } 45231da177e4SLinus Torvalds 45241da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 45251da177e4SLinus Torvalds { 45261da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 45271da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4528bcecff77SChuck Lever size_t hdrlen; 4529bcecff77SChuck Lever u32 len, recvd; 45308687b63aSAl Viro __be32 *p; 45311da177e4SLinus Torvalds int status; 45321da177e4SLinus Torvalds 45331da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 45341da177e4SLinus Torvalds if (status) 45351da177e4SLinus Torvalds return status; 45361da177e4SLinus Torvalds 45371da177e4SLinus Torvalds /* Convert length of symlink */ 4538c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4539c0eae66eSBenny Halevy if (unlikely(!p)) 4540c0eae66eSBenny Halevy goto out_overflow; 4541cccddf4fSBenny Halevy len = be32_to_cpup(p); 45421da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4543fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 45441da177e4SLinus Torvalds return -ENAMETOOLONG; 45451da177e4SLinus Torvalds } 45461da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 45471da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 45481da177e4SLinus Torvalds if (recvd < len) { 4549fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 45501da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 45511da177e4SLinus Torvalds return -EIO; 45521da177e4SLinus Torvalds } 45531da177e4SLinus Torvalds xdr_read_pages(xdr, len); 45541da177e4SLinus Torvalds /* 45551da177e4SLinus Torvalds * The XDR encode routine has set things up so that 45561da177e4SLinus Torvalds * the link text will be copied directly into the 45571da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 45581da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 45591da177e4SLinus Torvalds * null-termination). 45601da177e4SLinus Torvalds */ 4561b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 45621da177e4SLinus Torvalds return 0; 4563c0eae66eSBenny Halevy out_overflow: 4564c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4565c0eae66eSBenny Halevy return -EIO; 45661da177e4SLinus Torvalds } 45671da177e4SLinus Torvalds 45681da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 45691da177e4SLinus Torvalds { 45701da177e4SLinus Torvalds int status; 45711da177e4SLinus Torvalds 45721da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 45731da177e4SLinus Torvalds if (status) 45741da177e4SLinus Torvalds goto out; 45751da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 45761da177e4SLinus Torvalds out: 45771da177e4SLinus Torvalds return status; 45781da177e4SLinus Torvalds } 45791da177e4SLinus Torvalds 45801da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 45811da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 45821da177e4SLinus Torvalds { 45831da177e4SLinus Torvalds int status; 45841da177e4SLinus Torvalds 45851da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 45861da177e4SLinus Torvalds if (status) 45871da177e4SLinus Torvalds goto out; 45881da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 45891da177e4SLinus Torvalds goto out; 45901da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 45911da177e4SLinus Torvalds out: 45921da177e4SLinus Torvalds return status; 45931da177e4SLinus Torvalds } 45941da177e4SLinus Torvalds 45951da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 45961da177e4SLinus Torvalds { 45971da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 45981da177e4SLinus Torvalds } 45991da177e4SLinus Torvalds 460056ae19f3STrond Myklebust static int 460156ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 460256ae19f3STrond Myklebust { 460356ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 460456ae19f3STrond Myklebust } 460556ae19f3STrond Myklebust 4606029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4607029d105eSJ. Bruce Fields size_t *acl_len) 4608029d105eSJ. Bruce Fields { 46098687b63aSAl Viro __be32 *savep; 4610029d105eSJ. Bruce Fields uint32_t attrlen, 4611029d105eSJ. Bruce Fields bitmap[2] = {0}; 4612029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4613029d105eSJ. Bruce Fields int status; 4614029d105eSJ. Bruce Fields 4615029d105eSJ. Bruce Fields *acl_len = 0; 4616029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4617029d105eSJ. Bruce Fields goto out; 4618029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4619029d105eSJ. Bruce Fields goto out; 4620029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4621029d105eSJ. Bruce Fields goto out; 4622029d105eSJ. Bruce Fields 4623029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4624029d105eSJ. Bruce Fields return -EIO; 4625029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4626bcecff77SChuck Lever size_t hdrlen; 4627bcecff77SChuck Lever u32 recvd; 4628029d105eSJ. Bruce Fields 4629029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4630029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4631029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4632029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4633029d105eSJ. Bruce Fields if (attrlen > recvd) { 4634fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4635029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4636029d105eSJ. Bruce Fields attrlen, recvd); 4637029d105eSJ. Bruce Fields return -EINVAL; 4638029d105eSJ. Bruce Fields } 4639029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4640029d105eSJ. Bruce Fields *acl_len = attrlen; 46418c233cf9SJ. Bruce Fields } else 46428c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4643029d105eSJ. Bruce Fields 4644029d105eSJ. Bruce Fields out: 4645029d105eSJ. Bruce Fields return status; 4646029d105eSJ. Bruce Fields } 4647029d105eSJ. Bruce Fields 46481da177e4SLinus Torvalds static int 46491da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 46501da177e4SLinus Torvalds { 46511da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 46521da177e4SLinus Torvalds } 46531da177e4SLinus Torvalds 46549e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 46551da177e4SLinus Torvalds { 46568687b63aSAl Viro __be32 *p; 46571da177e4SLinus Torvalds uint32_t bmlen; 46581da177e4SLinus Torvalds int status; 46591da177e4SLinus Torvalds 46601da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 46611da177e4SLinus Torvalds if (status) 46621da177e4SLinus Torvalds return status; 4663c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4664c0eae66eSBenny Halevy if (unlikely(!p)) 4665c0eae66eSBenny Halevy goto out_overflow; 4666cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4667c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4668c0eae66eSBenny Halevy if (likely(p)) 46691da177e4SLinus Torvalds return 0; 4670c0eae66eSBenny Halevy out_overflow: 4671c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4672c0eae66eSBenny Halevy return -EIO; 46731da177e4SLinus Torvalds } 46741da177e4SLinus Torvalds 4675bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 46761da177e4SLinus Torvalds { 46778687b63aSAl Viro __be32 *p; 46781da177e4SLinus Torvalds uint32_t opnum; 46791da177e4SLinus Torvalds int32_t nfserr; 46801da177e4SLinus Torvalds 4681c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4682c0eae66eSBenny Halevy if (unlikely(!p)) 4683c0eae66eSBenny Halevy goto out_overflow; 46846f723f77SBenny Halevy opnum = be32_to_cpup(p++); 46851da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4686fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 46871da177e4SLinus Torvalds " %d\n", opnum); 46881da177e4SLinus Torvalds return -EIO; 46891da177e4SLinus Torvalds } 4690cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 46911da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4692c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4693c0eae66eSBenny Halevy if (unlikely(!p)) 4694c0eae66eSBenny Halevy goto out_overflow; 4695bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 4696bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 46971da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 46981da177e4SLinus Torvalds uint32_t len; 46991da177e4SLinus Torvalds 47001da177e4SLinus Torvalds /* skip netid string */ 4701c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4702c0eae66eSBenny Halevy if (unlikely(!p)) 4703c0eae66eSBenny Halevy goto out_overflow; 4704cccddf4fSBenny Halevy len = be32_to_cpup(p); 4705c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4706c0eae66eSBenny Halevy if (unlikely(!p)) 4707c0eae66eSBenny Halevy goto out_overflow; 47081da177e4SLinus Torvalds 47091da177e4SLinus Torvalds /* skip uaddr string */ 4710c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4711c0eae66eSBenny Halevy if (unlikely(!p)) 4712c0eae66eSBenny Halevy goto out_overflow; 4713cccddf4fSBenny Halevy len = be32_to_cpup(p); 4714c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4715c0eae66eSBenny Halevy if (unlikely(!p)) 4716c0eae66eSBenny Halevy goto out_overflow; 47171da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 47181da177e4SLinus Torvalds } else 4719856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 47201da177e4SLinus Torvalds 47211da177e4SLinus Torvalds return 0; 4722c0eae66eSBenny Halevy out_overflow: 4723c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4724c0eae66eSBenny Halevy return -EIO; 47251da177e4SLinus Torvalds } 47261da177e4SLinus Torvalds 47271da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 47281da177e4SLinus Torvalds { 47291da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 47301da177e4SLinus Torvalds } 47311da177e4SLinus Torvalds 47321da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 47331da177e4SLinus Torvalds { 47348687b63aSAl Viro __be32 *p; 47351da177e4SLinus Torvalds int status; 47361da177e4SLinus Torvalds 47371da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 47381da177e4SLinus Torvalds if (status) 47391da177e4SLinus Torvalds return status; 47401da177e4SLinus Torvalds 4741c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4742c0eae66eSBenny Halevy if (unlikely(!p)) 4743c0eae66eSBenny Halevy goto out_overflow; 47446f723f77SBenny Halevy res->count = be32_to_cpup(p++); 47456f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 474699398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 47471da177e4SLinus Torvalds return 0; 4748c0eae66eSBenny Halevy out_overflow: 4749c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4750c0eae66eSBenny Halevy return -EIO; 47511da177e4SLinus Torvalds } 47521da177e4SLinus Torvalds 47531da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 47541da177e4SLinus Torvalds { 47551da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 47561da177e4SLinus Torvalds } 47571da177e4SLinus Torvalds 475899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 475999fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 476099fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 476199fe60d0SBenny Halevy { 476299fe60d0SBenny Halevy __be32 *p; 476399fe60d0SBenny Halevy uint32_t dummy; 47642460ba57SBenny Halevy char *dummy_str; 476599fe60d0SBenny Halevy int status; 476699fe60d0SBenny Halevy struct nfs_client *clp = res->client; 476799fe60d0SBenny Halevy 476899fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 476999fe60d0SBenny Halevy if (status) 477099fe60d0SBenny Halevy return status; 477199fe60d0SBenny Halevy 4772c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4773c0eae66eSBenny Halevy if (unlikely(!p)) 4774c0eae66eSBenny Halevy goto out_overflow; 4775cccddf4fSBenny Halevy xdr_decode_hyper(p, &clp->cl_ex_clid); 4776c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4777c0eae66eSBenny Halevy if (unlikely(!p)) 4778c0eae66eSBenny Halevy goto out_overflow; 47796f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 47806f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 478199fe60d0SBenny Halevy 478299fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4783cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 478499fe60d0SBenny Halevy if (dummy != SP4_NONE) 478599fe60d0SBenny Halevy return -EIO; 478699fe60d0SBenny Halevy 478799fe60d0SBenny Halevy /* Throw away minor_id */ 4788c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4789c0eae66eSBenny Halevy if (unlikely(!p)) 4790c0eae66eSBenny Halevy goto out_overflow; 479199fe60d0SBenny Halevy 479299fe60d0SBenny Halevy /* Throw away Major id */ 47932460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47942460ba57SBenny Halevy if (unlikely(status)) 47952460ba57SBenny Halevy return status; 479699fe60d0SBenny Halevy 479799fe60d0SBenny Halevy /* Throw away server_scope */ 47982460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 47992460ba57SBenny Halevy if (unlikely(status)) 48002460ba57SBenny Halevy return status; 480199fe60d0SBenny Halevy 480299fe60d0SBenny Halevy /* Throw away Implementation id array */ 48032460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 48042460ba57SBenny Halevy if (unlikely(status)) 48052460ba57SBenny Halevy return status; 480699fe60d0SBenny Halevy 480799fe60d0SBenny Halevy return 0; 4808c0eae66eSBenny Halevy out_overflow: 4809c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4810c0eae66eSBenny Halevy return -EIO; 481199fe60d0SBenny Halevy } 4812fc931582SAndy Adamson 4813fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4814fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4815fc931582SAndy Adamson { 4816fc931582SAndy Adamson __be32 *p; 4817fc931582SAndy Adamson u32 nr_attrs; 4818fc931582SAndy Adamson 4819c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4820c0eae66eSBenny Halevy if (unlikely(!p)) 4821c0eae66eSBenny Halevy goto out_overflow; 48226f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 48236f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 48246f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 48256f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 48266f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 48276f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4828cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4829fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4830fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4831fc931582SAndy Adamson __func__, nr_attrs); 4832fc931582SAndy Adamson return -EINVAL; 4833fc931582SAndy Adamson } 4834c0eae66eSBenny Halevy if (nr_attrs == 1) { 4835c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4836c0eae66eSBenny Halevy if (unlikely(!p)) 4837c0eae66eSBenny Halevy goto out_overflow; 4838c0eae66eSBenny Halevy } 4839fc931582SAndy Adamson return 0; 4840c0eae66eSBenny Halevy out_overflow: 4841c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4842c0eae66eSBenny Halevy return -EIO; 4843fc931582SAndy Adamson } 4844fc931582SAndy Adamson 4845e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4846e78291e4SBenny Halevy { 4847e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4848fc931582SAndy Adamson } 4849fc931582SAndy Adamson 4850fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4851fc931582SAndy Adamson struct nfs41_create_session_res *res) 4852fc931582SAndy Adamson { 4853fc931582SAndy Adamson __be32 *p; 4854fc931582SAndy Adamson int status; 4855fc931582SAndy Adamson struct nfs_client *clp = res->client; 4856fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4857fc931582SAndy Adamson 4858fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4859e78291e4SBenny Halevy if (!status) 4860e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4861e78291e4SBenny Halevy if (unlikely(status)) 4862fc931582SAndy Adamson return status; 4863fc931582SAndy Adamson 4864fc931582SAndy Adamson /* seqid, flags */ 4865c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4866c0eae66eSBenny Halevy if (unlikely(!p)) 4867c0eae66eSBenny Halevy goto out_overflow; 48686f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4869cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4870fc931582SAndy Adamson 4871fc931582SAndy Adamson /* Channel attributes */ 4872fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4873fc931582SAndy Adamson if (!status) 4874fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4875fc931582SAndy Adamson return status; 4876c0eae66eSBenny Halevy out_overflow: 4877c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4878c0eae66eSBenny Halevy return -EIO; 4879fc931582SAndy Adamson } 48800f3e66c6SAndy Adamson 48810f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 48820f3e66c6SAndy Adamson { 48830f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 48840f3e66c6SAndy Adamson } 488518019753SRicardo Labiaga 488618019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 488718019753SRicardo Labiaga { 488818019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 488918019753SRicardo Labiaga } 489099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 489199fe60d0SBenny Halevy 48929b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 48939b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 48949b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 48959b7b9fccSAndy Adamson { 48969b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4897fc01cea9SAndy Adamson struct nfs4_sessionid id; 4898fc01cea9SAndy Adamson u32 dummy; 4899fc01cea9SAndy Adamson int status; 4900fc01cea9SAndy Adamson __be32 *p; 4901fc01cea9SAndy Adamson 49029b7b9fccSAndy Adamson if (!res->sr_session) 49039b7b9fccSAndy Adamson return 0; 49049b7b9fccSAndy Adamson 4905fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4906e78291e4SBenny Halevy if (!status) 4907e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 4908e78291e4SBenny Halevy if (unlikely(status)) 4909fc01cea9SAndy Adamson goto out_err; 49109b7b9fccSAndy Adamson 4911fc01cea9SAndy Adamson /* 4912fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4913fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4914fc01cea9SAndy Adamson */ 4915fdcb4577STrond Myklebust status = -EREMOTEIO; 4916fc01cea9SAndy Adamson 4917fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4918fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4919fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4920fc01cea9SAndy Adamson goto out_err; 4921fc01cea9SAndy Adamson } 4922e78291e4SBenny Halevy 4923c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4924c0eae66eSBenny Halevy if (unlikely(!p)) 4925c0eae66eSBenny Halevy goto out_overflow; 4926e78291e4SBenny Halevy 4927fc01cea9SAndy Adamson /* seqid */ 49286f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4929dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 4930fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4931fc01cea9SAndy Adamson goto out_err; 4932fc01cea9SAndy Adamson } 4933fc01cea9SAndy Adamson /* slot id */ 49346f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4935dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 4936fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4937fc01cea9SAndy Adamson goto out_err; 4938fc01cea9SAndy Adamson } 4939fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 49406f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4941fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 49426f723f77SBenny Halevy dummy = be32_to_cpup(p++); 49430629e370SAlexandros Batsakis /* result flags */ 49440629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 4945fc01cea9SAndy Adamson status = 0; 4946fc01cea9SAndy Adamson out_err: 4947fc01cea9SAndy Adamson res->sr_status = status; 4948fc01cea9SAndy Adamson return status; 4949c0eae66eSBenny Halevy out_overflow: 4950c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4951c0eae66eSBenny Halevy status = -EIO; 4952c0eae66eSBenny Halevy goto out_err; 4953fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 49549b7b9fccSAndy Adamson return 0; 4955fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 49569b7b9fccSAndy Adamson } 49579b7b9fccSAndy Adamson 4958b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 4959b1f69b75SAndy Adamson 4960b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 4961b1f69b75SAndy Adamson struct pnfs_device *pdev) 4962b1f69b75SAndy Adamson { 4963b1f69b75SAndy Adamson __be32 *p; 4964b1f69b75SAndy Adamson uint32_t len, type; 4965b1f69b75SAndy Adamson int status; 4966b1f69b75SAndy Adamson 4967b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 4968b1f69b75SAndy Adamson if (status) { 4969b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 4970b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 4971b1f69b75SAndy Adamson if (unlikely(!p)) 4972b1f69b75SAndy Adamson goto out_overflow; 4973b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 4974b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 4975b1f69b75SAndy Adamson __func__, pdev->mincount); 4976b1f69b75SAndy Adamson } 4977b1f69b75SAndy Adamson return status; 4978b1f69b75SAndy Adamson } 4979b1f69b75SAndy Adamson 4980b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 4981b1f69b75SAndy Adamson if (unlikely(!p)) 4982b1f69b75SAndy Adamson goto out_overflow; 4983b1f69b75SAndy Adamson type = be32_to_cpup(p++); 4984b1f69b75SAndy Adamson if (type != pdev->layout_type) { 4985b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 4986b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 4987b1f69b75SAndy Adamson return -EINVAL; 4988b1f69b75SAndy Adamson } 4989b1f69b75SAndy Adamson /* 4990b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 4991b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 4992b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 4993b1f69b75SAndy Adamson */ 4994b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 4995b1f69b75SAndy Adamson xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ 4996b1f69b75SAndy Adamson 4997b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 4998b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 4999b1f69b75SAndy Adamson if (unlikely(!p)) 5000b1f69b75SAndy Adamson goto out_overflow; 5001b1f69b75SAndy Adamson len = be32_to_cpup(p); 5002b1f69b75SAndy Adamson if (len) { 5003b1f69b75SAndy Adamson int i; 5004b1f69b75SAndy Adamson 5005b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5006b1f69b75SAndy Adamson if (unlikely(!p)) 5007b1f69b75SAndy Adamson goto out_overflow; 5008b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5009b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5010b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5011b1f69b75SAndy Adamson __func__); 5012b1f69b75SAndy Adamson return -EIO; 5013b1f69b75SAndy Adamson } 5014b1f69b75SAndy Adamson } 5015b1f69b75SAndy Adamson } 5016b1f69b75SAndy Adamson return 0; 5017b1f69b75SAndy Adamson out_overflow: 5018b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5019b1f69b75SAndy Adamson return -EIO; 5020b1f69b75SAndy Adamson } 5021b1f69b75SAndy Adamson 5022b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5023b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5024b1f69b75SAndy Adamson { 5025b1f69b75SAndy Adamson __be32 *p; 5026b1f69b75SAndy Adamson int status; 5027b1f69b75SAndy Adamson u32 layout_count; 5028b1f69b75SAndy Adamson 5029b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5030b1f69b75SAndy Adamson if (status) 5031b1f69b75SAndy Adamson return status; 5032b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); 5033b1f69b75SAndy Adamson if (unlikely(!p)) 5034b1f69b75SAndy Adamson goto out_overflow; 5035b1f69b75SAndy Adamson res->return_on_close = be32_to_cpup(p++); 5036b1f69b75SAndy Adamson p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); 5037b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5038b1f69b75SAndy Adamson if (!layout_count) { 5039b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5040b1f69b75SAndy Adamson __func__); 5041b1f69b75SAndy Adamson return -EINVAL; 5042b1f69b75SAndy Adamson } 5043b1f69b75SAndy Adamson 5044b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 24); 5045b1f69b75SAndy Adamson if (unlikely(!p)) 5046b1f69b75SAndy Adamson goto out_overflow; 5047b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5048b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5049b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5050b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 5051b1f69b75SAndy Adamson 5052b1f69b75SAndy Adamson status = decode_opaque_inline(xdr, &res->layout.len, (char **)&p); 5053b1f69b75SAndy Adamson if (unlikely(status)) 5054b1f69b75SAndy Adamson return status; 5055b1f69b75SAndy Adamson 5056b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5057b1f69b75SAndy Adamson __func__, 5058b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5059b1f69b75SAndy Adamson (unsigned long)res->range.length, 5060b1f69b75SAndy Adamson res->range.iomode, 5061b1f69b75SAndy Adamson res->type, 5062b1f69b75SAndy Adamson res->layout.len); 5063b1f69b75SAndy Adamson 5064b1f69b75SAndy Adamson /* nfs4_proc_layoutget allocated a single page */ 5065b1f69b75SAndy Adamson if (res->layout.len > PAGE_SIZE) 5066b1f69b75SAndy Adamson return -ENOMEM; 5067b1f69b75SAndy Adamson memcpy(res->layout.buf, p, res->layout.len); 5068b1f69b75SAndy Adamson 5069b1f69b75SAndy Adamson if (layout_count > 1) { 5070b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5071b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5072b1f69b75SAndy Adamson * the client may see a response that is less than the 5073b1f69b75SAndy Adamson * minimum it requested. 5074b1f69b75SAndy Adamson */ 5075b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5076b1f69b75SAndy Adamson __func__, layout_count); 5077b1f69b75SAndy Adamson } 5078b1f69b75SAndy Adamson 5079b1f69b75SAndy Adamson return 0; 5080b1f69b75SAndy Adamson out_overflow: 5081b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5082b1f69b75SAndy Adamson return -EIO; 5083b1f69b75SAndy Adamson } 5084b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5085b1f69b75SAndy Adamson 50861da177e4SLinus Torvalds /* 508749c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 508849c2559eSBenny Halevy */ 508949c2559eSBenny Halevy 509049c2559eSBenny Halevy /* 50911da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 50921da177e4SLinus Torvalds */ 50938687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 50941da177e4SLinus Torvalds { 50951da177e4SLinus Torvalds struct xdr_stream xdr; 50961da177e4SLinus Torvalds struct compound_hdr hdr; 50971da177e4SLinus Torvalds int status; 50981da177e4SLinus Torvalds 50991da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51001da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51011da177e4SLinus Torvalds if (status) 51021da177e4SLinus Torvalds goto out; 51039b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51049b7b9fccSAndy Adamson if (status) 51059b7b9fccSAndy Adamson goto out; 51061da177e4SLinus Torvalds status = decode_putfh(&xdr); 51071da177e4SLinus Torvalds if (status) 51081da177e4SLinus Torvalds goto out; 51091da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 5110516a6af6STrond Myklebust if (status != 0) 5111516a6af6STrond Myklebust goto out; 511280e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 511380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51141da177e4SLinus Torvalds out: 51151da177e4SLinus Torvalds return status; 51161da177e4SLinus Torvalds } 51171da177e4SLinus Torvalds 51181da177e4SLinus Torvalds /* 51191da177e4SLinus Torvalds * Decode ACCESS response 51201da177e4SLinus Torvalds */ 51218687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 51221da177e4SLinus Torvalds { 51231da177e4SLinus Torvalds struct xdr_stream xdr; 51241da177e4SLinus Torvalds struct compound_hdr hdr; 51251da177e4SLinus Torvalds int status; 51261da177e4SLinus Torvalds 51271da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51289b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 51299b7b9fccSAndy Adamson if (status) 51309b7b9fccSAndy Adamson goto out; 51319b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51329b7b9fccSAndy Adamson if (status) 51331da177e4SLinus Torvalds goto out; 513476b32999STrond Myklebust status = decode_putfh(&xdr); 513576b32999STrond Myklebust if (status != 0) 513676b32999STrond Myklebust goto out; 51371da177e4SLinus Torvalds status = decode_access(&xdr, res); 513876b32999STrond Myklebust if (status != 0) 513976b32999STrond Myklebust goto out; 514080e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 514180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51421da177e4SLinus Torvalds out: 51431da177e4SLinus Torvalds return status; 51441da177e4SLinus Torvalds } 51451da177e4SLinus Torvalds 51461da177e4SLinus Torvalds /* 51471da177e4SLinus Torvalds * Decode LOOKUP response 51481da177e4SLinus Torvalds */ 51498687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 51501da177e4SLinus Torvalds { 51511da177e4SLinus Torvalds struct xdr_stream xdr; 51521da177e4SLinus Torvalds struct compound_hdr hdr; 51531da177e4SLinus Torvalds int status; 51541da177e4SLinus Torvalds 51551da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51569b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 51579b7b9fccSAndy Adamson if (status) 51589b7b9fccSAndy Adamson goto out; 51599b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51609b7b9fccSAndy Adamson if (status) 51611da177e4SLinus Torvalds goto out; 51621da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 51631da177e4SLinus Torvalds goto out; 51641da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 51651da177e4SLinus Torvalds goto out; 51661da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 51671da177e4SLinus Torvalds goto out; 516880e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server 516980e52aceSTrond Myklebust ,!RPC_IS_ASYNC(rqstp->rq_task)); 51701da177e4SLinus Torvalds out: 51711da177e4SLinus Torvalds return status; 51721da177e4SLinus Torvalds } 51731da177e4SLinus Torvalds 51741da177e4SLinus Torvalds /* 51751da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 51761da177e4SLinus Torvalds */ 51778687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 51781da177e4SLinus Torvalds { 51791da177e4SLinus Torvalds struct xdr_stream xdr; 51801da177e4SLinus Torvalds struct compound_hdr hdr; 51811da177e4SLinus Torvalds int status; 51821da177e4SLinus Torvalds 51831da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51849b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 51859b7b9fccSAndy Adamson if (status) 51869b7b9fccSAndy Adamson goto out; 51879b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51889b7b9fccSAndy Adamson if (status) 51891da177e4SLinus Torvalds goto out; 51901da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 51911da177e4SLinus Torvalds goto out; 51921da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 519380e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 519480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51951da177e4SLinus Torvalds out: 51961da177e4SLinus Torvalds return status; 51971da177e4SLinus Torvalds } 51981da177e4SLinus Torvalds 51991da177e4SLinus Torvalds /* 52001da177e4SLinus Torvalds * Decode REMOVE response 52011da177e4SLinus Torvalds */ 52024fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 52031da177e4SLinus Torvalds { 52041da177e4SLinus Torvalds struct xdr_stream xdr; 52051da177e4SLinus Torvalds struct compound_hdr hdr; 52061da177e4SLinus Torvalds int status; 52071da177e4SLinus Torvalds 52081da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52099b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 52109b7b9fccSAndy Adamson if (status) 52119b7b9fccSAndy Adamson goto out; 52129b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52139b7b9fccSAndy Adamson if (status) 52141da177e4SLinus Torvalds goto out; 521516e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 521616e42959STrond Myklebust goto out; 521716e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 521816e42959STrond Myklebust goto out; 5219d346890bSTrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server, 522080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52211da177e4SLinus Torvalds out: 52221da177e4SLinus Torvalds return status; 52231da177e4SLinus Torvalds } 52241da177e4SLinus Torvalds 52251da177e4SLinus Torvalds /* 52261da177e4SLinus Torvalds * Decode RENAME response 52271da177e4SLinus Torvalds */ 5228e8582a8bSJeff Layton static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs_renameres *res) 52291da177e4SLinus Torvalds { 52301da177e4SLinus Torvalds struct xdr_stream xdr; 52311da177e4SLinus Torvalds struct compound_hdr hdr; 52321da177e4SLinus Torvalds int status; 52331da177e4SLinus Torvalds 52341da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52359b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 52369b7b9fccSAndy Adamson if (status) 52379b7b9fccSAndy Adamson goto out; 52389b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52399b7b9fccSAndy Adamson if (status) 52401da177e4SLinus Torvalds goto out; 52411da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 52421da177e4SLinus Torvalds goto out; 52431da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 52441da177e4SLinus Torvalds goto out; 52451da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 52461da177e4SLinus Torvalds goto out; 52476caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 52486caf2c82STrond Myklebust goto out; 52496caf2c82STrond Myklebust /* Current FH is target directory */ 525080e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server, 525180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 52526caf2c82STrond Myklebust goto out; 52536caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 52546caf2c82STrond Myklebust goto out; 525580e52aceSTrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server, 525680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52571da177e4SLinus Torvalds out: 52581da177e4SLinus Torvalds return status; 52591da177e4SLinus Torvalds } 52601da177e4SLinus Torvalds 52611da177e4SLinus Torvalds /* 52621da177e4SLinus Torvalds * Decode LINK response 52631da177e4SLinus Torvalds */ 52648687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 52651da177e4SLinus Torvalds { 52661da177e4SLinus Torvalds struct xdr_stream xdr; 52671da177e4SLinus Torvalds struct compound_hdr hdr; 52681da177e4SLinus Torvalds int status; 52691da177e4SLinus Torvalds 52701da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52719b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 52729b7b9fccSAndy Adamson if (status) 52739b7b9fccSAndy Adamson goto out; 52749b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52759b7b9fccSAndy Adamson if (status) 52761da177e4SLinus Torvalds goto out; 52771da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 52781da177e4SLinus Torvalds goto out; 52791da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 52801da177e4SLinus Torvalds goto out; 52811da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 52821da177e4SLinus Torvalds goto out; 528391ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 528491ba2eeeSTrond Myklebust goto out; 528591ba2eeeSTrond Myklebust /* 528691ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 528791ba2eeeSTrond Myklebust * filehandle. 528891ba2eeeSTrond Myklebust */ 528980e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server, 529080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 529191ba2eeeSTrond Myklebust goto out; 529291ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 529391ba2eeeSTrond Myklebust goto out; 529480e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 529580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52961da177e4SLinus Torvalds out: 52971da177e4SLinus Torvalds return status; 52981da177e4SLinus Torvalds } 52991da177e4SLinus Torvalds 53001da177e4SLinus Torvalds /* 53011da177e4SLinus Torvalds * Decode CREATE response 53021da177e4SLinus Torvalds */ 53038687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 53041da177e4SLinus Torvalds { 53051da177e4SLinus Torvalds struct xdr_stream xdr; 53061da177e4SLinus Torvalds struct compound_hdr hdr; 53071da177e4SLinus Torvalds int status; 53081da177e4SLinus Torvalds 53091da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53109b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 53119b7b9fccSAndy Adamson if (status) 53129b7b9fccSAndy Adamson goto out; 53139b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53149b7b9fccSAndy Adamson if (status) 53151da177e4SLinus Torvalds goto out; 53161da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 53171da177e4SLinus Torvalds goto out; 531856ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 531956ae19f3STrond Myklebust goto out; 53201da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 53211da177e4SLinus Torvalds goto out; 53221da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 53231da177e4SLinus Torvalds goto out; 532480e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server, 532580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 532656ae19f3STrond Myklebust goto out; 532756ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 532856ae19f3STrond Myklebust goto out; 532980e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server, 533080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53311da177e4SLinus Torvalds out: 53321da177e4SLinus Torvalds return status; 53331da177e4SLinus Torvalds } 53341da177e4SLinus Torvalds 53351da177e4SLinus Torvalds /* 53361da177e4SLinus Torvalds * Decode SYMLINK response 53371da177e4SLinus Torvalds */ 53388687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 53391da177e4SLinus Torvalds { 53401da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 53411da177e4SLinus Torvalds } 53421da177e4SLinus Torvalds 53431da177e4SLinus Torvalds /* 53441da177e4SLinus Torvalds * Decode GETATTR response 53451da177e4SLinus Torvalds */ 53468687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 53471da177e4SLinus Torvalds { 53481da177e4SLinus Torvalds struct xdr_stream xdr; 53491da177e4SLinus Torvalds struct compound_hdr hdr; 53501da177e4SLinus Torvalds int status; 53511da177e4SLinus Torvalds 53521da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53531da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53541da177e4SLinus Torvalds if (status) 53551da177e4SLinus Torvalds goto out; 53569b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53579b7b9fccSAndy Adamson if (status) 53589b7b9fccSAndy Adamson goto out; 53591da177e4SLinus Torvalds status = decode_putfh(&xdr); 53601da177e4SLinus Torvalds if (status) 53611da177e4SLinus Torvalds goto out; 536280e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 536380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53641da177e4SLinus Torvalds out: 53651da177e4SLinus Torvalds return status; 53661da177e4SLinus Torvalds } 53671da177e4SLinus Torvalds 536823ec6965SJ. Bruce Fields /* 536923ec6965SJ. Bruce Fields * Encode an SETACL request 537023ec6965SJ. Bruce Fields */ 537123ec6965SJ. Bruce Fields static int 53728687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 537323ec6965SJ. Bruce Fields { 537423ec6965SJ. Bruce Fields struct xdr_stream xdr; 537523ec6965SJ. Bruce Fields struct compound_hdr hdr = { 537666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 537723ec6965SJ. Bruce Fields }; 537823ec6965SJ. Bruce Fields int status; 537923ec6965SJ. Bruce Fields 538023ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 53810c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 53829b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 5383cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 5384d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 5385d017931cSAndy Adamson encode_nops(&hdr); 538623ec6965SJ. Bruce Fields return status; 538723ec6965SJ. Bruce Fields } 538805d564feSAndy Adamson 538923ec6965SJ. Bruce Fields /* 539023ec6965SJ. Bruce Fields * Decode SETACL response 539123ec6965SJ. Bruce Fields */ 539223ec6965SJ. Bruce Fields static int 539373c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 539473c403a9SBenny Halevy struct nfs_setaclres *res) 539523ec6965SJ. Bruce Fields { 539623ec6965SJ. Bruce Fields struct xdr_stream xdr; 539723ec6965SJ. Bruce Fields struct compound_hdr hdr; 539823ec6965SJ. Bruce Fields int status; 539923ec6965SJ. Bruce Fields 540023ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 540123ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 540223ec6965SJ. Bruce Fields if (status) 540323ec6965SJ. Bruce Fields goto out; 54049b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54059b7b9fccSAndy Adamson if (status) 54069b7b9fccSAndy Adamson goto out; 540723ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 540823ec6965SJ. Bruce Fields if (status) 540923ec6965SJ. Bruce Fields goto out; 54109e9ecc03SBenny Halevy status = decode_setattr(&xdr); 541123ec6965SJ. Bruce Fields out: 541223ec6965SJ. Bruce Fields return status; 541323ec6965SJ. Bruce Fields } 54141da177e4SLinus Torvalds 54151da177e4SLinus Torvalds /* 5416029d105eSJ. Bruce Fields * Decode GETACL response 5417029d105eSJ. Bruce Fields */ 5418029d105eSJ. Bruce Fields static int 5419663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 5420663c79b3SBenny Halevy struct nfs_getaclres *res) 5421029d105eSJ. Bruce Fields { 5422029d105eSJ. Bruce Fields struct xdr_stream xdr; 5423029d105eSJ. Bruce Fields struct compound_hdr hdr; 5424029d105eSJ. Bruce Fields int status; 5425029d105eSJ. Bruce Fields 5426029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5427029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 5428029d105eSJ. Bruce Fields if (status) 5429029d105eSJ. Bruce Fields goto out; 54309b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54319b7b9fccSAndy Adamson if (status) 54329b7b9fccSAndy Adamson goto out; 5433029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 5434029d105eSJ. Bruce Fields if (status) 5435029d105eSJ. Bruce Fields goto out; 5436663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 5437029d105eSJ. Bruce Fields 5438029d105eSJ. Bruce Fields out: 5439029d105eSJ. Bruce Fields return status; 5440029d105eSJ. Bruce Fields } 5441029d105eSJ. Bruce Fields 5442029d105eSJ. Bruce Fields /* 54431da177e4SLinus Torvalds * Decode CLOSE response 54441da177e4SLinus Torvalds */ 54458687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 54461da177e4SLinus Torvalds { 54471da177e4SLinus Torvalds struct xdr_stream xdr; 54481da177e4SLinus Torvalds struct compound_hdr hdr; 54491da177e4SLinus Torvalds int status; 54501da177e4SLinus Torvalds 54511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54531da177e4SLinus Torvalds if (status) 54541da177e4SLinus Torvalds goto out; 54559b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54569b7b9fccSAndy Adamson if (status) 54579b7b9fccSAndy Adamson goto out; 54581da177e4SLinus Torvalds status = decode_putfh(&xdr); 54591da177e4SLinus Torvalds if (status) 54601da177e4SLinus Torvalds goto out; 54611da177e4SLinus Torvalds status = decode_close(&xdr, res); 5462516a6af6STrond Myklebust if (status != 0) 5463516a6af6STrond Myklebust goto out; 5464516a6af6STrond Myklebust /* 5465516a6af6STrond Myklebust * Note: Server may do delete on close for this file 5466516a6af6STrond Myklebust * in which case the getattr call will fail with 5467516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 5468516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 5469516a6af6STrond Myklebust */ 547080e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 547180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54721da177e4SLinus Torvalds out: 54731da177e4SLinus Torvalds return status; 54741da177e4SLinus Torvalds } 54751da177e4SLinus Torvalds 54761da177e4SLinus Torvalds /* 54771da177e4SLinus Torvalds * Decode OPEN response 54781da177e4SLinus Torvalds */ 54798687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 54801da177e4SLinus Torvalds { 54811da177e4SLinus Torvalds struct xdr_stream xdr; 54821da177e4SLinus Torvalds struct compound_hdr hdr; 54831da177e4SLinus Torvalds int status; 54841da177e4SLinus Torvalds 54851da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54861da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54871da177e4SLinus Torvalds if (status) 54881da177e4SLinus Torvalds goto out; 54899b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54909b7b9fccSAndy Adamson if (status) 54919b7b9fccSAndy Adamson goto out; 54921da177e4SLinus Torvalds status = decode_putfh(&xdr); 54931da177e4SLinus Torvalds if (status) 54941da177e4SLinus Torvalds goto out; 549556ae19f3STrond Myklebust status = decode_savefh(&xdr); 549656ae19f3STrond Myklebust if (status) 549756ae19f3STrond Myklebust goto out; 54981da177e4SLinus Torvalds status = decode_open(&xdr, res); 54991da177e4SLinus Torvalds if (status) 55001da177e4SLinus Torvalds goto out; 55019936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 55021da177e4SLinus Torvalds goto out; 550380e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server, 550480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 550556ae19f3STrond Myklebust goto out; 5506365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 550756ae19f3STrond Myklebust goto out; 550880e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server, 550980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 55101da177e4SLinus Torvalds out: 55111da177e4SLinus Torvalds return status; 55121da177e4SLinus Torvalds } 55131da177e4SLinus Torvalds 55141da177e4SLinus Torvalds /* 55151da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 55161da177e4SLinus Torvalds */ 55178687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 55181da177e4SLinus Torvalds { 55191da177e4SLinus Torvalds struct xdr_stream xdr; 55201da177e4SLinus Torvalds struct compound_hdr hdr; 55211da177e4SLinus Torvalds int status; 55221da177e4SLinus Torvalds 55231da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 55241da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55251da177e4SLinus Torvalds if (status) 55261da177e4SLinus Torvalds goto out; 55271da177e4SLinus Torvalds status = decode_putfh(&xdr); 55281da177e4SLinus Torvalds if (status) 55291da177e4SLinus Torvalds goto out; 55301da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 55311da177e4SLinus Torvalds out: 55321da177e4SLinus Torvalds return status; 55331da177e4SLinus Torvalds } 55341da177e4SLinus Torvalds 55351da177e4SLinus Torvalds /* 55361da177e4SLinus Torvalds * Decode OPEN response 55371da177e4SLinus Torvalds */ 55388687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 55391da177e4SLinus Torvalds { 55401da177e4SLinus Torvalds struct xdr_stream xdr; 55411da177e4SLinus Torvalds struct compound_hdr hdr; 55421da177e4SLinus Torvalds int status; 55431da177e4SLinus Torvalds 55441da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 55451da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55461da177e4SLinus Torvalds if (status) 55471da177e4SLinus Torvalds goto out; 55489b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 55499b7b9fccSAndy Adamson if (status) 55509b7b9fccSAndy Adamson goto out; 55511da177e4SLinus Torvalds status = decode_putfh(&xdr); 55521da177e4SLinus Torvalds if (status) 55531da177e4SLinus Torvalds goto out; 55541da177e4SLinus Torvalds status = decode_open(&xdr, res); 5555864472e9STrond Myklebust if (status) 5556864472e9STrond Myklebust goto out; 555780e52aceSTrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server, 555880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 55591da177e4SLinus Torvalds out: 55601da177e4SLinus Torvalds return status; 55611da177e4SLinus Torvalds } 55621da177e4SLinus Torvalds 55631da177e4SLinus Torvalds /* 55641da177e4SLinus Torvalds * Decode SETATTR response 55651da177e4SLinus Torvalds */ 55668687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 55671da177e4SLinus Torvalds { 55681da177e4SLinus Torvalds struct xdr_stream xdr; 55691da177e4SLinus Torvalds struct compound_hdr hdr; 55701da177e4SLinus Torvalds int status; 55711da177e4SLinus Torvalds 55721da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 55731da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55741da177e4SLinus Torvalds if (status) 55751da177e4SLinus Torvalds goto out; 55769b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 55779b7b9fccSAndy Adamson if (status) 55789b7b9fccSAndy Adamson goto out; 55791da177e4SLinus Torvalds status = decode_putfh(&xdr); 55801da177e4SLinus Torvalds if (status) 55811da177e4SLinus Torvalds goto out; 55829e9ecc03SBenny Halevy status = decode_setattr(&xdr); 55831da177e4SLinus Torvalds if (status) 55841da177e4SLinus Torvalds goto out; 558580e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 558680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 55871da177e4SLinus Torvalds out: 55881da177e4SLinus Torvalds return status; 55891da177e4SLinus Torvalds } 55901da177e4SLinus Torvalds 55911da177e4SLinus Torvalds /* 55921da177e4SLinus Torvalds * Decode LOCK response 55931da177e4SLinus Torvalds */ 55948687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 55951da177e4SLinus Torvalds { 55961da177e4SLinus Torvalds struct xdr_stream xdr; 55971da177e4SLinus Torvalds struct compound_hdr hdr; 55981da177e4SLinus Torvalds int status; 55991da177e4SLinus Torvalds 56001da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56011da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 56021da177e4SLinus Torvalds if (status) 56031da177e4SLinus Torvalds goto out; 56049b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 56059b7b9fccSAndy Adamson if (status) 56069b7b9fccSAndy Adamson goto out; 56071da177e4SLinus Torvalds status = decode_putfh(&xdr); 56081da177e4SLinus Torvalds if (status) 56091da177e4SLinus Torvalds goto out; 56101da177e4SLinus Torvalds status = decode_lock(&xdr, res); 56111da177e4SLinus Torvalds out: 56121da177e4SLinus Torvalds return status; 56131da177e4SLinus Torvalds } 56141da177e4SLinus Torvalds 56151da177e4SLinus Torvalds /* 56161da177e4SLinus Torvalds * Decode LOCKT response 56171da177e4SLinus Torvalds */ 56188687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 56191da177e4SLinus Torvalds { 56201da177e4SLinus Torvalds struct xdr_stream xdr; 56211da177e4SLinus Torvalds struct compound_hdr hdr; 56221da177e4SLinus Torvalds int status; 56231da177e4SLinus Torvalds 56241da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56251da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 56261da177e4SLinus Torvalds if (status) 56271da177e4SLinus Torvalds goto out; 56289b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 56299b7b9fccSAndy Adamson if (status) 56309b7b9fccSAndy Adamson goto out; 56311da177e4SLinus Torvalds status = decode_putfh(&xdr); 56321da177e4SLinus Torvalds if (status) 56331da177e4SLinus Torvalds goto out; 56341da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 56351da177e4SLinus Torvalds out: 56361da177e4SLinus Torvalds return status; 56371da177e4SLinus Torvalds } 56381da177e4SLinus Torvalds 56391da177e4SLinus Torvalds /* 56401da177e4SLinus Torvalds * Decode LOCKU response 56411da177e4SLinus Torvalds */ 56428687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 56431da177e4SLinus Torvalds { 56441da177e4SLinus Torvalds struct xdr_stream xdr; 56451da177e4SLinus Torvalds struct compound_hdr hdr; 56461da177e4SLinus Torvalds int status; 56471da177e4SLinus Torvalds 56481da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56491da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 56501da177e4SLinus Torvalds if (status) 56511da177e4SLinus Torvalds goto out; 56529b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 56539b7b9fccSAndy Adamson if (status) 56549b7b9fccSAndy Adamson goto out; 56551da177e4SLinus Torvalds status = decode_putfh(&xdr); 56561da177e4SLinus Torvalds if (status) 56571da177e4SLinus Torvalds goto out; 56581da177e4SLinus Torvalds status = decode_locku(&xdr, res); 56591da177e4SLinus Torvalds out: 56601da177e4SLinus Torvalds return status; 56611da177e4SLinus Torvalds } 56621da177e4SLinus Torvalds 5663d3c7b7ccSTrond Myklebust static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 5664d3c7b7ccSTrond Myklebust { 5665d3c7b7ccSTrond Myklebust struct xdr_stream xdr; 5666d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 5667d3c7b7ccSTrond Myklebust int status; 5668d3c7b7ccSTrond Myklebust 5669d3c7b7ccSTrond Myklebust xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5670d3c7b7ccSTrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 5671d3c7b7ccSTrond Myklebust if (!status) 5672d3c7b7ccSTrond Myklebust status = decode_release_lockowner(&xdr); 5673d3c7b7ccSTrond Myklebust return status; 5674d3c7b7ccSTrond Myklebust } 5675d3c7b7ccSTrond Myklebust 56761da177e4SLinus Torvalds /* 56771da177e4SLinus Torvalds * Decode READLINK response 56781da177e4SLinus Torvalds */ 5679f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 5680f50c7000SBenny Halevy struct nfs4_readlink_res *res) 56811da177e4SLinus Torvalds { 56821da177e4SLinus Torvalds struct xdr_stream xdr; 56831da177e4SLinus Torvalds struct compound_hdr hdr; 56841da177e4SLinus Torvalds int status; 56851da177e4SLinus Torvalds 56861da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56871da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 56881da177e4SLinus Torvalds if (status) 56891da177e4SLinus Torvalds goto out; 56909b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 56919b7b9fccSAndy Adamson if (status) 56929b7b9fccSAndy Adamson goto out; 56931da177e4SLinus Torvalds status = decode_putfh(&xdr); 56941da177e4SLinus Torvalds if (status) 56951da177e4SLinus Torvalds goto out; 56961da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 56971da177e4SLinus Torvalds out: 56981da177e4SLinus Torvalds return status; 56991da177e4SLinus Torvalds } 57001da177e4SLinus Torvalds 57011da177e4SLinus Torvalds /* 57021da177e4SLinus Torvalds * Decode READDIR response 57031da177e4SLinus Torvalds */ 57048687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 57051da177e4SLinus Torvalds { 57061da177e4SLinus Torvalds struct xdr_stream xdr; 57071da177e4SLinus Torvalds struct compound_hdr hdr; 57081da177e4SLinus Torvalds int status; 57091da177e4SLinus Torvalds 57101da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 57111da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 57121da177e4SLinus Torvalds if (status) 57131da177e4SLinus Torvalds goto out; 57149b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 57159b7b9fccSAndy Adamson if (status) 57169b7b9fccSAndy Adamson goto out; 57171da177e4SLinus Torvalds status = decode_putfh(&xdr); 57181da177e4SLinus Torvalds if (status) 57191da177e4SLinus Torvalds goto out; 57201da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 57211da177e4SLinus Torvalds out: 57221da177e4SLinus Torvalds return status; 57231da177e4SLinus Torvalds } 57241da177e4SLinus Torvalds 57251da177e4SLinus Torvalds /* 57261da177e4SLinus Torvalds * Decode Read response 57271da177e4SLinus Torvalds */ 57288687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 57291da177e4SLinus Torvalds { 57301da177e4SLinus Torvalds struct xdr_stream xdr; 57311da177e4SLinus Torvalds struct compound_hdr hdr; 57321da177e4SLinus Torvalds int status; 57331da177e4SLinus Torvalds 57341da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 57351da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 57361da177e4SLinus Torvalds if (status) 57371da177e4SLinus Torvalds goto out; 57389b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 57399b7b9fccSAndy Adamson if (status) 57409b7b9fccSAndy Adamson goto out; 57411da177e4SLinus Torvalds status = decode_putfh(&xdr); 57421da177e4SLinus Torvalds if (status) 57431da177e4SLinus Torvalds goto out; 57441da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 57451da177e4SLinus Torvalds if (!status) 57461da177e4SLinus Torvalds status = res->count; 57471da177e4SLinus Torvalds out: 57481da177e4SLinus Torvalds return status; 57491da177e4SLinus Torvalds } 57501da177e4SLinus Torvalds 57511da177e4SLinus Torvalds /* 57521da177e4SLinus Torvalds * Decode WRITE response 57531da177e4SLinus Torvalds */ 57548687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 57551da177e4SLinus Torvalds { 57561da177e4SLinus Torvalds struct xdr_stream xdr; 57571da177e4SLinus Torvalds struct compound_hdr hdr; 57581da177e4SLinus Torvalds int status; 57591da177e4SLinus Torvalds 57601da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 57611da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 57621da177e4SLinus Torvalds if (status) 57631da177e4SLinus Torvalds goto out; 57649b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 57659b7b9fccSAndy Adamson if (status) 57669b7b9fccSAndy Adamson goto out; 57671da177e4SLinus Torvalds status = decode_putfh(&xdr); 57681da177e4SLinus Torvalds if (status) 57691da177e4SLinus Torvalds goto out; 57701da177e4SLinus Torvalds status = decode_write(&xdr, res); 57714f9838c7STrond Myklebust if (status) 57724f9838c7STrond Myklebust goto out; 577380e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 577480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 57751da177e4SLinus Torvalds if (!status) 57761da177e4SLinus Torvalds status = res->count; 57771da177e4SLinus Torvalds out: 57781da177e4SLinus Torvalds return status; 57791da177e4SLinus Torvalds } 57801da177e4SLinus Torvalds 57811da177e4SLinus Torvalds /* 57821da177e4SLinus Torvalds * Decode COMMIT response 57831da177e4SLinus Torvalds */ 57848687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 57851da177e4SLinus Torvalds { 57861da177e4SLinus Torvalds struct xdr_stream xdr; 57871da177e4SLinus Torvalds struct compound_hdr hdr; 57881da177e4SLinus Torvalds int status; 57891da177e4SLinus Torvalds 57901da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 57911da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 57921da177e4SLinus Torvalds if (status) 57931da177e4SLinus Torvalds goto out; 57949b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 57959b7b9fccSAndy Adamson if (status) 57969b7b9fccSAndy Adamson goto out; 57971da177e4SLinus Torvalds status = decode_putfh(&xdr); 57981da177e4SLinus Torvalds if (status) 57991da177e4SLinus Torvalds goto out; 58001da177e4SLinus Torvalds status = decode_commit(&xdr, res); 58014f9838c7STrond Myklebust if (status) 58024f9838c7STrond Myklebust goto out; 580380e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 580480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 58051da177e4SLinus Torvalds out: 58061da177e4SLinus Torvalds return status; 58071da177e4SLinus Torvalds } 58081da177e4SLinus Torvalds 58091da177e4SLinus Torvalds /* 58108b173218SRicardo Labiaga * Decode FSINFO response 58111da177e4SLinus Torvalds */ 58123dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 58133dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 58141da177e4SLinus Torvalds { 58151da177e4SLinus Torvalds struct xdr_stream xdr; 58161da177e4SLinus Torvalds struct compound_hdr hdr; 58171da177e4SLinus Torvalds int status; 58181da177e4SLinus Torvalds 58191da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 58201da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 58211da177e4SLinus Torvalds if (!status) 58229b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 58239b7b9fccSAndy Adamson if (!status) 58241da177e4SLinus Torvalds status = decode_putfh(&xdr); 58251da177e4SLinus Torvalds if (!status) 58263dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 58271da177e4SLinus Torvalds return status; 58281da177e4SLinus Torvalds } 58291da177e4SLinus Torvalds 58301da177e4SLinus Torvalds /* 58318b173218SRicardo Labiaga * Decode PATHCONF response 58321da177e4SLinus Torvalds */ 5833d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5834d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 58351da177e4SLinus Torvalds { 58361da177e4SLinus Torvalds struct xdr_stream xdr; 58371da177e4SLinus Torvalds struct compound_hdr hdr; 58381da177e4SLinus Torvalds int status; 58391da177e4SLinus Torvalds 58401da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 58411da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 58421da177e4SLinus Torvalds if (!status) 58439b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 58449b7b9fccSAndy Adamson if (!status) 58451da177e4SLinus Torvalds status = decode_putfh(&xdr); 58461da177e4SLinus Torvalds if (!status) 5847d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 58481da177e4SLinus Torvalds return status; 58491da177e4SLinus Torvalds } 58501da177e4SLinus Torvalds 58511da177e4SLinus Torvalds /* 58528b173218SRicardo Labiaga * Decode STATFS response 58531da177e4SLinus Torvalds */ 585424ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 585524ad148aSBenny Halevy struct nfs4_statfs_res *res) 58561da177e4SLinus Torvalds { 58571da177e4SLinus Torvalds struct xdr_stream xdr; 58581da177e4SLinus Torvalds struct compound_hdr hdr; 58591da177e4SLinus Torvalds int status; 58601da177e4SLinus Torvalds 58611da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 58621da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 58631da177e4SLinus Torvalds if (!status) 58649b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 58659b7b9fccSAndy Adamson if (!status) 58661da177e4SLinus Torvalds status = decode_putfh(&xdr); 58671da177e4SLinus Torvalds if (!status) 586824ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 58691da177e4SLinus Torvalds return status; 58701da177e4SLinus Torvalds } 58711da177e4SLinus Torvalds 58721da177e4SLinus Torvalds /* 58738b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 58741da177e4SLinus Torvalds */ 58758687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 58761da177e4SLinus Torvalds { 58771da177e4SLinus Torvalds struct xdr_stream xdr; 58781da177e4SLinus Torvalds struct compound_hdr hdr; 58791da177e4SLinus Torvalds int status; 58801da177e4SLinus Torvalds 58811da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 58829b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 58839b7b9fccSAndy Adamson if (status) 58849b7b9fccSAndy Adamson goto out; 58859b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 58869b7b9fccSAndy Adamson if (status) 58871da177e4SLinus Torvalds goto out; 58881da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 58891da177e4SLinus Torvalds goto out; 58901da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 58911da177e4SLinus Torvalds out: 58921da177e4SLinus Torvalds return status; 58931da177e4SLinus Torvalds } 58941da177e4SLinus Torvalds 58951da177e4SLinus Torvalds /* 58961da177e4SLinus Torvalds * Decode RENEW response 58971da177e4SLinus Torvalds */ 58988687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 58991da177e4SLinus Torvalds { 59001da177e4SLinus Torvalds struct xdr_stream xdr; 59011da177e4SLinus Torvalds struct compound_hdr hdr; 59021da177e4SLinus Torvalds int status; 59031da177e4SLinus Torvalds 59041da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 59051da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 59061da177e4SLinus Torvalds if (!status) 59071da177e4SLinus Torvalds status = decode_renew(&xdr); 59081da177e4SLinus Torvalds return status; 59091da177e4SLinus Torvalds } 59101da177e4SLinus Torvalds 59111da177e4SLinus Torvalds /* 59128b173218SRicardo Labiaga * Decode SETCLIENTID response 59131da177e4SLinus Torvalds */ 59148687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5915bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 59161da177e4SLinus Torvalds { 59171da177e4SLinus Torvalds struct xdr_stream xdr; 59181da177e4SLinus Torvalds struct compound_hdr hdr; 59191da177e4SLinus Torvalds int status; 59201da177e4SLinus Torvalds 59211da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 59221da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 59231da177e4SLinus Torvalds if (!status) 5924bb8b27e5STrond Myklebust status = decode_setclientid(&xdr, res); 59251da177e4SLinus Torvalds return status; 59261da177e4SLinus Torvalds } 59271da177e4SLinus Torvalds 59281da177e4SLinus Torvalds /* 59298b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 59301da177e4SLinus Torvalds */ 59318687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 59321da177e4SLinus Torvalds { 59331da177e4SLinus Torvalds struct xdr_stream xdr; 59341da177e4SLinus Torvalds struct compound_hdr hdr; 59351da177e4SLinus Torvalds int status; 59361da177e4SLinus Torvalds 59371da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 59381da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 59391da177e4SLinus Torvalds if (!status) 59401da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 59411da177e4SLinus Torvalds if (!status) 59421da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 59431da177e4SLinus Torvalds if (!status) 59441da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 59451da177e4SLinus Torvalds return status; 59461da177e4SLinus Torvalds } 59471da177e4SLinus Torvalds 59481da177e4SLinus Torvalds /* 59498b173218SRicardo Labiaga * Decode DELEGRETURN response 59501da177e4SLinus Torvalds */ 59518687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 59521da177e4SLinus Torvalds { 59531da177e4SLinus Torvalds struct xdr_stream xdr; 59541da177e4SLinus Torvalds struct compound_hdr hdr; 59551da177e4SLinus Torvalds int status; 59561da177e4SLinus Torvalds 59571da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 59581da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 59599b7b9fccSAndy Adamson if (status) 59609b7b9fccSAndy Adamson goto out; 59619b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 59629b7b9fccSAndy Adamson if (status) 5963fa178f29STrond Myklebust goto out; 59641da177e4SLinus Torvalds status = decode_putfh(&xdr); 5965fa178f29STrond Myklebust if (status != 0) 5966fa178f29STrond Myklebust goto out; 59671da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5968556ae3bbSJeff Layton if (status != 0) 5969556ae3bbSJeff Layton goto out; 597080e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 597180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 5972fa178f29STrond Myklebust out: 59731da177e4SLinus Torvalds return status; 59741da177e4SLinus Torvalds } 59751da177e4SLinus Torvalds 5976683b57b4STrond Myklebust /* 59778b173218SRicardo Labiaga * Decode FS_LOCATIONS response 5978683b57b4STrond Myklebust */ 597922958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 598022958463SBenny Halevy struct nfs4_fs_locations_res *res) 5981683b57b4STrond Myklebust { 5982683b57b4STrond Myklebust struct xdr_stream xdr; 5983683b57b4STrond Myklebust struct compound_hdr hdr; 5984683b57b4STrond Myklebust int status; 5985683b57b4STrond Myklebust 5986683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5987683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 59889b7b9fccSAndy Adamson if (status) 59899b7b9fccSAndy Adamson goto out; 59909b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 59919b7b9fccSAndy Adamson if (status) 5992683b57b4STrond Myklebust goto out; 5993683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5994683b57b4STrond Myklebust goto out; 5995683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5996683b57b4STrond Myklebust goto out; 5997683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 599822958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 599980e52aceSTrond Myklebust res->fs_locations->server, 600080e52aceSTrond Myklebust !RPC_IS_ASYNC(req->rq_task)); 6001683b57b4STrond Myklebust out: 6002683b57b4STrond Myklebust return status; 6003683b57b4STrond Myklebust } 6004683b57b4STrond Myklebust 600599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 600699fe60d0SBenny Halevy /* 60078b173218SRicardo Labiaga * Decode EXCHANGE_ID response 600899fe60d0SBenny Halevy */ 600999fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 601099fe60d0SBenny Halevy void *res) 601199fe60d0SBenny Halevy { 601299fe60d0SBenny Halevy struct xdr_stream xdr; 601399fe60d0SBenny Halevy struct compound_hdr hdr; 601499fe60d0SBenny Halevy int status; 601599fe60d0SBenny Halevy 601699fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 601799fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 601899fe60d0SBenny Halevy if (!status) 601999fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 602099fe60d0SBenny Halevy return status; 602199fe60d0SBenny Halevy } 60222050f0ccSAndy Adamson 60232050f0ccSAndy Adamson /* 60248b173218SRicardo Labiaga * Decode CREATE_SESSION response 6025fc931582SAndy Adamson */ 6026fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 6027fc931582SAndy Adamson struct nfs41_create_session_res *res) 6028fc931582SAndy Adamson { 6029fc931582SAndy Adamson struct xdr_stream xdr; 6030fc931582SAndy Adamson struct compound_hdr hdr; 6031fc931582SAndy Adamson int status; 6032fc931582SAndy Adamson 6033fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 6034fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 6035fc931582SAndy Adamson if (!status) 6036fc931582SAndy Adamson status = decode_create_session(&xdr, res); 6037fc931582SAndy Adamson return status; 6038fc931582SAndy Adamson } 6039fc931582SAndy Adamson 6040fc931582SAndy Adamson /* 60418b173218SRicardo Labiaga * Decode DESTROY_SESSION response 60420f3e66c6SAndy Adamson */ 60430f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 60440f3e66c6SAndy Adamson void *dummy) 60450f3e66c6SAndy Adamson { 60460f3e66c6SAndy Adamson struct xdr_stream xdr; 60470f3e66c6SAndy Adamson struct compound_hdr hdr; 60480f3e66c6SAndy Adamson int status; 60490f3e66c6SAndy Adamson 60500f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 60510f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 60520f3e66c6SAndy Adamson if (!status) 60530f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 60540f3e66c6SAndy Adamson return status; 60550f3e66c6SAndy Adamson } 60560f3e66c6SAndy Adamson 60570f3e66c6SAndy Adamson /* 60588b173218SRicardo Labiaga * Decode SEQUENCE response 6059fc01cea9SAndy Adamson */ 6060fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 6061fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6062fc01cea9SAndy Adamson { 6063fc01cea9SAndy Adamson struct xdr_stream xdr; 6064fc01cea9SAndy Adamson struct compound_hdr hdr; 6065fc01cea9SAndy Adamson int status; 6066fc01cea9SAndy Adamson 6067fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 6068fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 6069fc01cea9SAndy Adamson if (!status) 6070fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 6071fc01cea9SAndy Adamson return status; 6072fc01cea9SAndy Adamson } 6073fc01cea9SAndy Adamson 6074fc01cea9SAndy Adamson /* 60758b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 60762050f0ccSAndy Adamson */ 60772050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 60782050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 60792050f0ccSAndy Adamson { 60802050f0ccSAndy Adamson struct xdr_stream xdr; 60812050f0ccSAndy Adamson struct compound_hdr hdr; 60822050f0ccSAndy Adamson int status; 60832050f0ccSAndy Adamson 60842050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 60852050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 60862050f0ccSAndy Adamson if (!status) 60872050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 60882050f0ccSAndy Adamson if (!status) 60892050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 60902050f0ccSAndy Adamson if (!status) 60912050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 60922050f0ccSAndy Adamson return status; 60932050f0ccSAndy Adamson } 609418019753SRicardo Labiaga 609518019753SRicardo Labiaga /* 609618019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 609718019753SRicardo Labiaga */ 609818019753SRicardo Labiaga static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p, 609918019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 610018019753SRicardo Labiaga { 610118019753SRicardo Labiaga struct xdr_stream xdr; 610218019753SRicardo Labiaga struct compound_hdr hdr; 610318019753SRicardo Labiaga int status; 610418019753SRicardo Labiaga 610518019753SRicardo Labiaga xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 610618019753SRicardo Labiaga status = decode_compound_hdr(&xdr, &hdr); 610718019753SRicardo Labiaga if (!status) 610818019753SRicardo Labiaga status = decode_sequence(&xdr, &res->seq_res, rqstp); 610918019753SRicardo Labiaga if (!status) 611018019753SRicardo Labiaga status = decode_reclaim_complete(&xdr, (void *)NULL); 611118019753SRicardo Labiaga return status; 611218019753SRicardo Labiaga } 6113b1f69b75SAndy Adamson 6114b1f69b75SAndy Adamson /* 6115b1f69b75SAndy Adamson * Decode GETDEVINFO response 6116b1f69b75SAndy Adamson */ 6117b1f69b75SAndy Adamson static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, uint32_t *p, 6118b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6119b1f69b75SAndy Adamson { 6120b1f69b75SAndy Adamson struct xdr_stream xdr; 6121b1f69b75SAndy Adamson struct compound_hdr hdr; 6122b1f69b75SAndy Adamson int status; 6123b1f69b75SAndy Adamson 6124b1f69b75SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 6125b1f69b75SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 6126b1f69b75SAndy Adamson if (status != 0) 6127b1f69b75SAndy Adamson goto out; 6128b1f69b75SAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 6129b1f69b75SAndy Adamson if (status != 0) 6130b1f69b75SAndy Adamson goto out; 6131b1f69b75SAndy Adamson status = decode_getdeviceinfo(&xdr, res->pdev); 6132b1f69b75SAndy Adamson out: 6133b1f69b75SAndy Adamson return status; 6134b1f69b75SAndy Adamson } 6135b1f69b75SAndy Adamson 6136b1f69b75SAndy Adamson /* 6137b1f69b75SAndy Adamson * Decode LAYOUTGET response 6138b1f69b75SAndy Adamson */ 6139b1f69b75SAndy Adamson static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, uint32_t *p, 6140b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6141b1f69b75SAndy Adamson { 6142b1f69b75SAndy Adamson struct xdr_stream xdr; 6143b1f69b75SAndy Adamson struct compound_hdr hdr; 6144b1f69b75SAndy Adamson int status; 6145b1f69b75SAndy Adamson 6146b1f69b75SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 6147b1f69b75SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 6148b1f69b75SAndy Adamson if (status) 6149b1f69b75SAndy Adamson goto out; 6150b1f69b75SAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 6151b1f69b75SAndy Adamson if (status) 6152b1f69b75SAndy Adamson goto out; 6153b1f69b75SAndy Adamson status = decode_putfh(&xdr); 6154b1f69b75SAndy Adamson if (status) 6155b1f69b75SAndy Adamson goto out; 6156b1f69b75SAndy Adamson status = decode_layoutget(&xdr, rqstp, res); 6157b1f69b75SAndy Adamson out: 6158b1f69b75SAndy Adamson return status; 6159b1f69b75SAndy Adamson } 616099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 616199fe60d0SBenny Halevy 616282f2e547SBryan Schumaker __be32 *nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 616382f2e547SBryan Schumaker struct nfs_server *server, int plus) 61641da177e4SLinus Torvalds { 61651da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 61661da177e4SLinus Torvalds uint32_t len; 6167babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 6168babddc72SBryan Schumaker if (unlikely(!p)) 6169babddc72SBryan Schumaker goto out_overflow; 6170babddc72SBryan Schumaker if (!ntohl(*p++)) { 6171babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 6172babddc72SBryan Schumaker if (unlikely(!p)) 6173babddc72SBryan Schumaker goto out_overflow; 6174babddc72SBryan Schumaker if (!ntohl(*p++)) 61751da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 61761da177e4SLinus Torvalds entry->eof = 1; 61771da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 61781da177e4SLinus Torvalds } 61791da177e4SLinus Torvalds 6180babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 6181babddc72SBryan Schumaker if (unlikely(!p)) 6182babddc72SBryan Schumaker goto out_overflow; 61831da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 61841da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 61851da177e4SLinus Torvalds entry->len = ntohl(*p++); 6186babddc72SBryan Schumaker 61879af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 6188babddc72SBryan Schumaker if (unlikely(!p)) 6189babddc72SBryan Schumaker goto out_overflow; 61901da177e4SLinus Torvalds entry->name = (const char *) p; 61911da177e4SLinus Torvalds 61921da177e4SLinus Torvalds /* 61931da177e4SLinus Torvalds * In case the server doesn't return an inode number, 61941da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 61951da177e4SLinus Torvalds * since glibc seems to choke on it...) 61961da177e4SLinus Torvalds */ 61971da177e4SLinus Torvalds entry->ino = 1; 61984f082222STrond Myklebust entry->fattr->valid = 0; 61991da177e4SLinus Torvalds 62009af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 6201babddc72SBryan Schumaker goto out_overflow; 62029af8c222STrond Myklebust 62039af8c222STrond Myklebust if (decode_attr_length(xdr, &len, &p) < 0) 6204babddc72SBryan Schumaker goto out_overflow; 62059af8c222STrond Myklebust 620682f2e547SBryan Schumaker if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, server, 1) < 0) 6207babddc72SBryan Schumaker goto out_overflow; 620882f2e547SBryan Schumaker if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 620982f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 62109af8c222STrond Myklebust 62119af8c222STrond Myklebust if (verify_attr_len(xdr, p, len) < 0) 62129af8c222STrond Myklebust goto out_overflow; 62131da177e4SLinus Torvalds 6214babddc72SBryan Schumaker p = xdr_inline_peek(xdr, 8); 6215babddc72SBryan Schumaker if (p != NULL) 62161da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 6217babddc72SBryan Schumaker else 6218babddc72SBryan Schumaker entry->eof = 0; 6219babddc72SBryan Schumaker 62201da177e4SLinus Torvalds return p; 6221babddc72SBryan Schumaker 6222babddc72SBryan Schumaker out_overflow: 6223babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 6224babddc72SBryan Schumaker return ERR_PTR(-EIO); 62251da177e4SLinus Torvalds } 62261da177e4SLinus Torvalds 62271da177e4SLinus Torvalds /* 62281da177e4SLinus Torvalds * We need to translate between nfs status return values and 62291da177e4SLinus Torvalds * the local errno values which may not be the same. 62301da177e4SLinus Torvalds */ 62311da177e4SLinus Torvalds static struct { 62321da177e4SLinus Torvalds int stat; 62331da177e4SLinus Torvalds int errno; 62341da177e4SLinus Torvalds } nfs_errtbl[] = { 62351da177e4SLinus Torvalds { NFS4_OK, 0 }, 6236856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 6237856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 6238856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 6239856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 6240856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 6241856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 6242856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 6243856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 6244856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 6245856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 6246856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 6247856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 6248856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 6249856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 6250856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 6251856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 6252856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 6253856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 6254856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 6255856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 6256856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 6257856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 6258856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 6259856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 6260fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 6261856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 6262856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 6263856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 6264856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 6265856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 6266856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 62671da177e4SLinus Torvalds * to be handled by a 62681da177e4SLinus Torvalds * middle-layer. 62691da177e4SLinus Torvalds */ 6270856dff3dSBenny Halevy { -1, -EIO } 62711da177e4SLinus Torvalds }; 62721da177e4SLinus Torvalds 62731da177e4SLinus Torvalds /* 62741da177e4SLinus Torvalds * Convert an NFS error code to a local one. 62751da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 62761da177e4SLinus Torvalds */ 62771da177e4SLinus Torvalds static int 62780a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 62791da177e4SLinus Torvalds { 62801da177e4SLinus Torvalds int i; 62811da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 62821da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 62831da177e4SLinus Torvalds return nfs_errtbl[i].errno; 62841da177e4SLinus Torvalds } 62851da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 62861da177e4SLinus Torvalds /* The server is looney tunes. */ 6287fdcb4577STrond Myklebust return -EREMOTEIO; 62881da177e4SLinus Torvalds } 62891da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 62901da177e4SLinus Torvalds * handle it. 62911da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 62921da177e4SLinus Torvalds * not conflict with native Linux error codes. 62931da177e4SLinus Torvalds */ 6294856dff3dSBenny Halevy return -stat; 62951da177e4SLinus Torvalds } 62961da177e4SLinus Torvalds 62971da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 62981da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 62991da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 63001da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 63011da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 63022bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 63032bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 6304cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 6305cc0175c1SChuck Lever .p_name = #proc, \ 63061da177e4SLinus Torvalds } 63071da177e4SLinus Torvalds 63081da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 63091da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 63101da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 63111da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 63121da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 63131da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 63141da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 63151da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 63161da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 63171da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 63181da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 63191da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 63201da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 63211da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 63221da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 63231da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 63241da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 63251da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 63261da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 63271da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 63281da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 63291da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 63301da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 63311da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 63321da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 63331da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 63341da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 63351da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 63361da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 63371da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 63381da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 63391da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 6340029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 634123ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 6342683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 6343d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 634499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 634599fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 6346fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 63470f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 6348fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 63492050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 635018019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 6351b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 6352b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 635399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 63541da177e4SLinus Torvalds }; 63551da177e4SLinus Torvalds 63561da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 63571da177e4SLinus Torvalds .number = 4, 6358e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 63591da177e4SLinus Torvalds .procs = nfs4_procedures 63601da177e4SLinus Torvalds }; 63611da177e4SLinus Torvalds 63621da177e4SLinus Torvalds /* 63631da177e4SLinus Torvalds * Local variables: 63641da177e4SLinus Torvalds * c-basic-offset: 8 63651da177e4SLinus Torvalds * End: 63661da177e4SLinus Torvalds */ 6367