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/slab.h> 421da177e4SLinus Torvalds #include <linux/utsname.h> 431da177e4SLinus Torvalds #include <linux/errno.h> 441da177e4SLinus Torvalds #include <linux/string.h> 451da177e4SLinus Torvalds #include <linux/in.h> 461da177e4SLinus Torvalds #include <linux/pagemap.h> 471da177e4SLinus Torvalds #include <linux/proc_fs.h> 481da177e4SLinus Torvalds #include <linux/kdev_t.h> 491da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 501da177e4SLinus Torvalds #include <linux/nfs.h> 511da177e4SLinus Torvalds #include <linux/nfs4.h> 521da177e4SLinus Torvalds #include <linux/nfs_fs.h> 531da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 544ce79717STrond Myklebust #include "nfs4_fs.h" 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 591da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 601da177e4SLinus Torvalds 610a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 641da177e4SLinus Torvalds #ifdef DEBUG 651da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 661da177e4SLinus Torvalds #else 671da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 681da177e4SLinus Torvalds #endif 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* lock,open owner id: 719f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 721da177e4SLinus Torvalds */ 739f958ab8STrond Myklebust #define open_owner_id_maxsz (1 + 4) 749f958ab8STrond Myklebust #define lock_owner_id_maxsz (1 + 4) 759104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 761da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 771da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 781da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 791da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 809104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 819104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 829104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 839104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 841da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 851da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 861da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 871da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 881da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 891da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 901da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 911da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9296928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9396928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 941da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 951da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 96bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 97bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 9896928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 9996928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 100bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10196928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10296928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10396928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1049104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1059104a55dSTrond Myklebust 1 + 2 + 1 + \ 1069104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1079104a55dSTrond Myklebust nfs4_group_maxsz + \ 1089104a55dSTrond Myklebust 4 + 4) 1091da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1101da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11156ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11256ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1132f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1141da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1151da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1161da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1171da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1181da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 119cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 120cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 121cc38bac3SChuck Lever 1 /* sc_prog */ + \ 122cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 123cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 124cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1251da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1261da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1271da177e4SLinus Torvalds 2 + \ 1281da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1291da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1301da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1311da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1321da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1331da177e4SLinus Torvalds (op_decode_hdr_maxsz) 134e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 135e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1362cebf828STrond Myklebust #define encode_share_access_maxsz \ 1372cebf828STrond Myklebust (2) 1389104a55dSTrond Myklebust #define encode_createmode_maxsz (1 + encode_attrs_maxsz) 1392cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1402cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1412cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1422cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1432cebf828STrond Myklebust open_owner_id_maxsz + \ 1442cebf828STrond Myklebust encode_opentype_maxsz + \ 1452cebf828STrond Myklebust encode_claim_null_maxsz) 1462cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1479104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1482cebf828STrond Myklebust decode_ace_maxsz) 1492cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1502cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1519104a55dSTrond Myklebust decode_stateid_maxsz + \ 1522cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1532cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1542cebf828STrond Myklebust decode_delegation_maxsz) 1559104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1569104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1579104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1589104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1599104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1609104a55dSTrond Myklebust decode_stateid_maxsz) 1619104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1629104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1639104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1649104a55dSTrond Myklebust encode_share_access_maxsz) 1659104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1669104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1679104a55dSTrond Myklebust decode_stateid_maxsz) 1689104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1699104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1709104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1719104a55dSTrond Myklebust decode_stateid_maxsz) 1729104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1739104a55dSTrond Myklebust encode_stateid_maxsz + \ 1749104a55dSTrond Myklebust encode_attrs_maxsz) 1759104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1769104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1779104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1789104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1799104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1809104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1819104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1829104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1839104a55dSTrond Myklebust decode_verifier_maxsz) 1849104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1859104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1869104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1879104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1889104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1909104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1919104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1929104a55dSTrond Myklebust decode_verifier_maxsz) 1931da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1941da177e4SLinus Torvalds nfs4_name_maxsz) 1956ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 1966ce18391SBenny Halevy decode_change_info_maxsz) 1971da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1981da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1996ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2006ce18391SBenny Halevy decode_change_info_maxsz + \ 2016ce18391SBenny Halevy decode_change_info_maxsz) 2021da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2031da177e4SLinus Torvalds nfs4_name_maxsz) 2046ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 2059104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2069104a55dSTrond Myklebust 7 + \ 2079104a55dSTrond Myklebust 1 + encode_stateid_maxsz + 8) 2089104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2099104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2109104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2119104a55dSTrond Myklebust decode_lock_denied_maxsz) 2129104a55dSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) 2139104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2149104a55dSTrond Myklebust decode_lock_denied_maxsz) 2159104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2169104a55dSTrond Myklebust encode_stateid_maxsz + \ 2179104a55dSTrond Myklebust 4) 2189104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2199104a55dSTrond Myklebust decode_stateid_maxsz) 2209104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2219104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2221da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2231da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 22494a6d753SChuck Lever 1 + \ 22596928206SJ. Bruce Fields nfs4_fattr_maxsz) 2261da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2271da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2289104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2299104a55dSTrond Myklebust encode_attrs_maxsz) 2302cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2312cebf828STrond Myklebust decode_change_info_maxsz + \ 2322cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2339104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2349104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2351da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2361da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2379104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2389104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2399104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2409104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2419104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2429104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 243e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 244e6889620STrond Myklebust (encode_getattr_maxsz) 245e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 246e6889620STrond Myklebust (0) 2479b7b9fccSAndy Adamson 2489b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 249fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 250fc931582SAndy Adamson 25199fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 25299fe60d0SBenny Halevy encode_verifier_maxsz + \ 25399fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 25499fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 25599fe60d0SBenny Halevy 1 /* flags */ + \ 25699fe60d0SBenny Halevy 1 /* spa_how */ + \ 25799fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 25899fe60d0SBenny Halevy 1 /* zero implemetation id array */) 25999fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 26099fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 26199fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 26299fe60d0SBenny Halevy 1 /* eir_flags */ + \ 26399fe60d0SBenny Halevy 1 /* spr_how */ + \ 26499fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 26599fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 26699fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 26799fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 26899fe60d0SBenny Halevy /* eir_server_scope<> */ \ 26999fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27099fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 27199fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 272fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 273fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 274fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 275fc931582SAndy Adamson 1 /* ca_rdma_ird */) 276fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 277fc931582SAndy Adamson 2 /* csa_clientid */ + \ 278fc931582SAndy Adamson 1 /* csa_sequence */ + \ 279fc931582SAndy Adamson 1 /* csa_flags */ + \ 280fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 281fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 282fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 283fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 284fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 285fc931582SAndy Adamson 1 /* stamp */ + \ 286fc931582SAndy Adamson 1 /* machinename.len */ + \ 287fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 288fc931582SAndy Adamson 1 /* uid */ + \ 289fc931582SAndy Adamson 1 /* gid */ + \ 290fc931582SAndy Adamson 1 /* gids.len (0) */) 291fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 292fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 293fc931582SAndy Adamson 1 /* csr_sequence */ + \ 294fc931582SAndy Adamson 1 /* csr_flags */ + \ 295fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 296fc931582SAndy Adamson decode_channel_attrs_maxsz) 2970f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 2980f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 299fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 300fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 301fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 302fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 3039b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3049b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3059b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3069b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3079b7b9fccSAndy Adamson 3081da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3091da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3101da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3121da177e4SLinus Torvalds encode_putfh_maxsz + \ 3139104a55dSTrond Myklebust encode_read_maxsz) 3141da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3159b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3161da177e4SLinus Torvalds decode_putfh_maxsz + \ 3179104a55dSTrond Myklebust decode_read_maxsz) 3181da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3199b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3201da177e4SLinus Torvalds encode_putfh_maxsz + \ 3219104a55dSTrond Myklebust encode_readlink_maxsz) 3221da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3241da177e4SLinus Torvalds decode_putfh_maxsz + \ 3259104a55dSTrond Myklebust decode_readlink_maxsz) 3261da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3279b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3281da177e4SLinus Torvalds encode_putfh_maxsz + \ 3299104a55dSTrond Myklebust encode_readdir_maxsz) 3301da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3319b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3321da177e4SLinus Torvalds decode_putfh_maxsz + \ 3339104a55dSTrond Myklebust decode_readdir_maxsz) 3341da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3361da177e4SLinus Torvalds encode_putfh_maxsz + \ 3379104a55dSTrond Myklebust encode_write_maxsz + \ 3384f9838c7STrond Myklebust encode_getattr_maxsz) 3391da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3409b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3411da177e4SLinus Torvalds decode_putfh_maxsz + \ 3429104a55dSTrond Myklebust decode_write_maxsz + \ 3434f9838c7STrond Myklebust decode_getattr_maxsz) 3441da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3461da177e4SLinus Torvalds encode_putfh_maxsz + \ 3479104a55dSTrond Myklebust encode_commit_maxsz + \ 3484f9838c7STrond Myklebust encode_getattr_maxsz) 3491da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3511da177e4SLinus Torvalds decode_putfh_maxsz + \ 3529104a55dSTrond Myklebust decode_commit_maxsz + \ 3534f9838c7STrond Myklebust decode_getattr_maxsz) 3541da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3561da177e4SLinus Torvalds encode_putfh_maxsz + \ 3572cebf828STrond Myklebust encode_savefh_maxsz + \ 3582cebf828STrond Myklebust encode_open_maxsz + \ 3592cebf828STrond Myklebust encode_getfh_maxsz + \ 3601da177e4SLinus Torvalds encode_getattr_maxsz + \ 3612cebf828STrond Myklebust encode_restorefh_maxsz + \ 3622cebf828STrond Myklebust encode_getattr_maxsz) 3631da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 3649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3651da177e4SLinus Torvalds decode_putfh_maxsz + \ 3662cebf828STrond Myklebust decode_savefh_maxsz + \ 3672cebf828STrond Myklebust decode_open_maxsz + \ 3682cebf828STrond Myklebust decode_getfh_maxsz + \ 3691da177e4SLinus Torvalds decode_getattr_maxsz + \ 3702cebf828STrond Myklebust decode_restorefh_maxsz + \ 3712cebf828STrond Myklebust decode_getattr_maxsz) 3721da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3731da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3741da177e4SLinus Torvalds encode_putfh_maxsz + \ 3759104a55dSTrond Myklebust encode_open_confirm_maxsz) 3769104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3779104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3781da177e4SLinus Torvalds decode_putfh_maxsz + \ 3799104a55dSTrond Myklebust decode_open_confirm_maxsz) 3801da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3821da177e4SLinus Torvalds encode_putfh_maxsz + \ 3832cebf828STrond Myklebust encode_open_maxsz + \ 3842cebf828STrond Myklebust encode_getattr_maxsz) 3851da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3869b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3871da177e4SLinus Torvalds decode_putfh_maxsz + \ 3882cebf828STrond Myklebust decode_open_maxsz + \ 3892cebf828STrond Myklebust decode_getattr_maxsz) 3901da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3911da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3931da177e4SLinus Torvalds encode_putfh_maxsz + \ 3949104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 395516a6af6STrond Myklebust encode_getattr_maxsz) 3961da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 3971da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3989b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3991da177e4SLinus Torvalds decode_putfh_maxsz + \ 4009104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 401516a6af6STrond Myklebust decode_getattr_maxsz) 4021da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4041da177e4SLinus Torvalds encode_putfh_maxsz + \ 4059104a55dSTrond Myklebust encode_close_maxsz + \ 406516a6af6STrond Myklebust encode_getattr_maxsz) 4071da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4091da177e4SLinus Torvalds decode_putfh_maxsz + \ 4109104a55dSTrond Myklebust decode_close_maxsz + \ 411516a6af6STrond Myklebust decode_getattr_maxsz) 4121da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4141da177e4SLinus Torvalds encode_putfh_maxsz + \ 4159104a55dSTrond Myklebust encode_setattr_maxsz + \ 4161da177e4SLinus Torvalds encode_getattr_maxsz) 4171da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4191da177e4SLinus Torvalds decode_putfh_maxsz + \ 4209104a55dSTrond Myklebust decode_setattr_maxsz + \ 4219104a55dSTrond Myklebust decode_getattr_maxsz) 4221da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4241da177e4SLinus Torvalds encode_putfh_maxsz + \ 4251da177e4SLinus Torvalds encode_fsinfo_maxsz) 4261da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4281da177e4SLinus Torvalds decode_putfh_maxsz + \ 4291da177e4SLinus Torvalds decode_fsinfo_maxsz) 4301da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4311da177e4SLinus Torvalds encode_renew_maxsz) 4321da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4331da177e4SLinus Torvalds decode_renew_maxsz) 4341da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4351da177e4SLinus Torvalds encode_setclientid_maxsz) 4361da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4371da177e4SLinus Torvalds decode_setclientid_maxsz) 4381da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4391da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4401da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4411da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4421da177e4SLinus Torvalds encode_fsinfo_maxsz) 4431da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4441da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4451da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4461da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4471da177e4SLinus Torvalds decode_fsinfo_maxsz) 4481da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4499b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4501da177e4SLinus Torvalds encode_putfh_maxsz + \ 4519104a55dSTrond Myklebust encode_lock_maxsz) 4521da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4541da177e4SLinus Torvalds decode_putfh_maxsz + \ 4559104a55dSTrond Myklebust decode_lock_maxsz) 4561da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4581da177e4SLinus Torvalds encode_putfh_maxsz + \ 4599104a55dSTrond Myklebust encode_lockt_maxsz) 4609104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 4619b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4629104a55dSTrond Myklebust decode_putfh_maxsz + \ 4639104a55dSTrond Myklebust decode_lockt_maxsz) 4641da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 4659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4661da177e4SLinus Torvalds encode_putfh_maxsz + \ 4679104a55dSTrond Myklebust encode_locku_maxsz) 4681da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 4699b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4701da177e4SLinus Torvalds decode_putfh_maxsz + \ 4719104a55dSTrond Myklebust decode_locku_maxsz) 4721da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 4739b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4741da177e4SLinus Torvalds encode_putfh_maxsz + \ 47576b32999STrond Myklebust encode_access_maxsz + \ 47676b32999STrond Myklebust encode_getattr_maxsz) 4771da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 4789b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4791da177e4SLinus Torvalds decode_putfh_maxsz + \ 48076b32999STrond Myklebust decode_access_maxsz + \ 48176b32999STrond Myklebust decode_getattr_maxsz) 4821da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 4839b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4841da177e4SLinus Torvalds encode_putfh_maxsz + \ 4851da177e4SLinus Torvalds encode_getattr_maxsz) 4861da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 4879b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4881da177e4SLinus Torvalds decode_putfh_maxsz + \ 4891da177e4SLinus Torvalds decode_getattr_maxsz) 4901da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 4919b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4921da177e4SLinus Torvalds encode_putfh_maxsz + \ 4931da177e4SLinus Torvalds encode_lookup_maxsz + \ 4941da177e4SLinus Torvalds encode_getattr_maxsz + \ 4951da177e4SLinus Torvalds encode_getfh_maxsz) 4961da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 4979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4981da177e4SLinus Torvalds decode_putfh_maxsz + \ 499e6889620STrond Myklebust decode_lookup_maxsz + \ 5001da177e4SLinus Torvalds decode_getattr_maxsz + \ 5011da177e4SLinus Torvalds decode_getfh_maxsz) 5021da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5041da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5051da177e4SLinus Torvalds encode_getattr_maxsz + \ 5061da177e4SLinus Torvalds encode_getfh_maxsz) 5071da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5091da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5101da177e4SLinus Torvalds decode_getattr_maxsz + \ 5111da177e4SLinus Torvalds decode_getfh_maxsz) 5121da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5141da177e4SLinus Torvalds encode_putfh_maxsz + \ 51516e42959STrond Myklebust encode_remove_maxsz + \ 51616e42959STrond Myklebust encode_getattr_maxsz) 5171da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5191da177e4SLinus Torvalds decode_putfh_maxsz + \ 5206ce18391SBenny Halevy decode_remove_maxsz + \ 52116e42959STrond Myklebust decode_getattr_maxsz) 5221da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5241da177e4SLinus Torvalds encode_putfh_maxsz + \ 5251da177e4SLinus Torvalds encode_savefh_maxsz + \ 5261da177e4SLinus Torvalds encode_putfh_maxsz + \ 5276caf2c82STrond Myklebust encode_rename_maxsz + \ 5286caf2c82STrond Myklebust encode_getattr_maxsz + \ 5296caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5306caf2c82STrond Myklebust encode_getattr_maxsz) 5311da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5331da177e4SLinus Torvalds decode_putfh_maxsz + \ 5341da177e4SLinus Torvalds decode_savefh_maxsz + \ 5351da177e4SLinus Torvalds decode_putfh_maxsz + \ 5366caf2c82STrond Myklebust decode_rename_maxsz + \ 5376caf2c82STrond Myklebust decode_getattr_maxsz + \ 5386caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5396caf2c82STrond Myklebust decode_getattr_maxsz) 5401da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5419b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5421da177e4SLinus Torvalds encode_putfh_maxsz + \ 5431da177e4SLinus Torvalds encode_savefh_maxsz + \ 5441da177e4SLinus Torvalds encode_putfh_maxsz + \ 54591ba2eeeSTrond Myklebust encode_link_maxsz + \ 54691ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 54791ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 54891ba2eeeSTrond Myklebust decode_getattr_maxsz) 5491da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5511da177e4SLinus Torvalds decode_putfh_maxsz + \ 5521da177e4SLinus Torvalds decode_savefh_maxsz + \ 5531da177e4SLinus Torvalds decode_putfh_maxsz + \ 55491ba2eeeSTrond Myklebust decode_link_maxsz + \ 55591ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 55691ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 55791ba2eeeSTrond Myklebust decode_getattr_maxsz) 5581da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 5599b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5601da177e4SLinus Torvalds encode_putfh_maxsz + \ 5611da177e4SLinus Torvalds encode_symlink_maxsz + \ 5621da177e4SLinus Torvalds encode_getattr_maxsz + \ 5631da177e4SLinus Torvalds encode_getfh_maxsz) 5641da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 5659b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5661da177e4SLinus Torvalds decode_putfh_maxsz + \ 5671da177e4SLinus Torvalds decode_symlink_maxsz + \ 5681da177e4SLinus Torvalds decode_getattr_maxsz + \ 5691da177e4SLinus Torvalds decode_getfh_maxsz) 5701da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 5719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5721da177e4SLinus Torvalds encode_putfh_maxsz + \ 57356ae19f3STrond Myklebust encode_savefh_maxsz + \ 5741da177e4SLinus Torvalds encode_create_maxsz + \ 57556ae19f3STrond Myklebust encode_getfh_maxsz + \ 5761da177e4SLinus Torvalds encode_getattr_maxsz + \ 57756ae19f3STrond Myklebust encode_restorefh_maxsz + \ 57856ae19f3STrond Myklebust encode_getattr_maxsz) 5791da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 5809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5811da177e4SLinus Torvalds decode_putfh_maxsz + \ 58256ae19f3STrond Myklebust decode_savefh_maxsz + \ 5831da177e4SLinus Torvalds decode_create_maxsz + \ 58456ae19f3STrond Myklebust decode_getfh_maxsz + \ 5851da177e4SLinus Torvalds decode_getattr_maxsz + \ 58656ae19f3STrond Myklebust decode_restorefh_maxsz + \ 58756ae19f3STrond Myklebust decode_getattr_maxsz) 5881da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 5899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5901da177e4SLinus Torvalds encode_putfh_maxsz + \ 5911da177e4SLinus Torvalds encode_getattr_maxsz) 5921da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 5939b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5941da177e4SLinus Torvalds decode_putfh_maxsz + \ 5951da177e4SLinus Torvalds decode_getattr_maxsz) 5961da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 5979b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5981da177e4SLinus Torvalds encode_putfh_maxsz + \ 5999104a55dSTrond Myklebust encode_statfs_maxsz) 6001da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6019b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6021da177e4SLinus Torvalds decode_putfh_maxsz + \ 6039104a55dSTrond Myklebust decode_statfs_maxsz) 6041da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 606ab91f264STrond Myklebust encode_putfh_maxsz + \ 6071da177e4SLinus Torvalds encode_getattr_maxsz) 6081da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6099b7b9fccSAndy Adamson decode_sequence_maxsz + \ 610ab91f264STrond Myklebust decode_putfh_maxsz + \ 6111da177e4SLinus Torvalds decode_getattr_maxsz) 6121da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6141da177e4SLinus Torvalds encode_putfh_maxsz + \ 615fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 616fa178f29STrond Myklebust encode_getattr_maxsz) 6171da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 619fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 620fa178f29STrond Myklebust decode_getattr_maxsz) 621029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 623029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6249104a55dSTrond Myklebust encode_getacl_maxsz) 625029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6269b7b9fccSAndy Adamson decode_sequence_maxsz + \ 627029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6289104a55dSTrond Myklebust decode_getacl_maxsz) 62923ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6309b7b9fccSAndy Adamson encode_sequence_maxsz + \ 63123ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6329104a55dSTrond Myklebust encode_setacl_maxsz) 63323ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 63523ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6369104a55dSTrond Myklebust decode_setacl_maxsz) 637683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 638683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6399b7b9fccSAndy Adamson encode_sequence_maxsz + \ 640683b57b4STrond Myklebust encode_putfh_maxsz + \ 641e6889620STrond Myklebust encode_lookup_maxsz + \ 642e6889620STrond Myklebust encode_fs_locations_maxsz) 643683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 644683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6459b7b9fccSAndy Adamson decode_sequence_maxsz + \ 646683b57b4STrond Myklebust decode_putfh_maxsz + \ 647e6889620STrond Myklebust decode_lookup_maxsz + \ 648e6889620STrond Myklebust decode_fs_locations_maxsz) 64999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 65099fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 65199fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 65299fe60d0SBenny Halevy encode_exchange_id_maxsz) 65399fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 65499fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 65599fe60d0SBenny Halevy decode_exchange_id_maxsz) 656fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 657fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 658fc931582SAndy Adamson encode_create_session_maxsz) 659fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 660fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 661fc931582SAndy Adamson decode_create_session_maxsz) 6620f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 6630f3e66c6SAndy Adamson encode_destroy_session_maxsz) 6640f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 6650f3e66c6SAndy Adamson decode_destroy_session_maxsz) 666fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 667fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 668fc01cea9SAndy Adamson encode_sequence_maxsz) 669fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 670fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 671fc01cea9SAndy Adamson decode_sequence_maxsz) 6722050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 6732050f0ccSAndy Adamson encode_sequence_maxsz + \ 6742050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 6752050f0ccSAndy Adamson encode_fsinfo_maxsz) 6762050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 6772050f0ccSAndy Adamson decode_sequence_maxsz + \ 6782050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 6792050f0ccSAndy Adamson decode_fsinfo_maxsz) 68099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 6811da177e4SLinus Torvalds 682bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 683bca79478STrond Myklebust [NF4BAD] = 0, 684bca79478STrond Myklebust [NF4REG] = S_IFREG, 685bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 686bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 687bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 688bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 689bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 690bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 691bca79478STrond Myklebust [NF4ATTRDIR] = 0, 692bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 6931da177e4SLinus Torvalds }; 6941da177e4SLinus Torvalds 6951da177e4SLinus Torvalds struct compound_hdr { 6961da177e4SLinus Torvalds int32_t status; 6971da177e4SLinus Torvalds uint32_t nops; 698d017931cSAndy Adamson __be32 * nops_p; 6991da177e4SLinus Torvalds uint32_t taglen; 7001da177e4SLinus Torvalds char * tag; 7010c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 70266cc0429SBenny Halevy u32 minorversion; 7031da177e4SLinus Torvalds }; 7041da177e4SLinus Torvalds 70513c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 70613c65ce9SBenny Halevy { 70713c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 70813c65ce9SBenny Halevy BUG_ON(!p); 70913c65ce9SBenny Halevy return p; 71013c65ce9SBenny Halevy } 7111da177e4SLinus Torvalds 7121da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7131da177e4SLinus Torvalds { 7148687b63aSAl Viro __be32 *p; 7151da177e4SLinus Torvalds 7161da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7171da177e4SLinus Torvalds BUG_ON(p == NULL); 7181da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7191da177e4SLinus Torvalds } 7201da177e4SLinus Torvalds 7210c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7220c4e8c18SBenny Halevy struct rpc_rqst *req, 7230c4e8c18SBenny Halevy struct compound_hdr *hdr) 7241da177e4SLinus Torvalds { 7258687b63aSAl Viro __be32 *p; 7260c4e8c18SBenny Halevy struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 7270c4e8c18SBenny Halevy 7280c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7290c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7300c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7310c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7321da177e4SLinus Torvalds 7331da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7341da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 735811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 736811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 737e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 738d017931cSAndy Adamson hdr->nops_p = p; 73934558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 740d017931cSAndy Adamson } 741d017931cSAndy Adamson 742d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 743d017931cSAndy Adamson { 744fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 745d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 7461da177e4SLinus Torvalds } 7471da177e4SLinus Torvalds 7481da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 7491da177e4SLinus Torvalds { 7508687b63aSAl Viro __be32 *p; 7511da177e4SLinus Torvalds 7521da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 7531da177e4SLinus Torvalds BUG_ON(p == NULL); 7541da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 7551da177e4SLinus Torvalds } 7561da177e4SLinus Torvalds 757cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 7581da177e4SLinus Torvalds { 7591da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 7601da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 7611da177e4SLinus Torvalds int owner_namelen = 0; 7621da177e4SLinus Torvalds int owner_grouplen = 0; 7638687b63aSAl Viro __be32 *p; 7648687b63aSAl Viro __be32 *q; 7651da177e4SLinus Torvalds int len; 7661da177e4SLinus Torvalds uint32_t bmval0 = 0; 7671da177e4SLinus Torvalds uint32_t bmval1 = 0; 7681da177e4SLinus Torvalds 7691da177e4SLinus Torvalds /* 7701da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 7711da177e4SLinus Torvalds * In the worst-case, this would be 7721da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 7731da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 77423ec6965SJ. Bruce Fields * such as owner/group. 7751da177e4SLinus Torvalds */ 7761da177e4SLinus Torvalds len = 16; 7771da177e4SLinus Torvalds 7781da177e4SLinus Torvalds /* Sigh */ 7791da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 7801da177e4SLinus Torvalds len += 8; 7811da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 7821da177e4SLinus Torvalds len += 4; 7831da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 7847539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 7851da177e4SLinus Torvalds if (owner_namelen < 0) { 786fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 7871da177e4SLinus Torvalds iap->ia_uid); 7881da177e4SLinus Torvalds /* XXX */ 7891da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 7901da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 7911da177e4SLinus Torvalds /* goto out; */ 7921da177e4SLinus Torvalds } 7931da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 7941da177e4SLinus Torvalds } 7951da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 7967539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 7971da177e4SLinus Torvalds if (owner_grouplen < 0) { 798fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 7991da177e4SLinus Torvalds iap->ia_gid); 8001da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8011da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8021da177e4SLinus Torvalds /* goto out; */ 8031da177e4SLinus Torvalds } 8041da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8051da177e4SLinus Torvalds } 8061da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8071da177e4SLinus Torvalds len += 16; 8081da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8091da177e4SLinus Torvalds len += 4; 8101da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8111da177e4SLinus Torvalds len += 16; 8121da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8131da177e4SLinus Torvalds len += 4; 81413c65ce9SBenny Halevy p = reserve_space(xdr, len); 8151da177e4SLinus Torvalds 8161da177e4SLinus Torvalds /* 8171da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8181da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8191da177e4SLinus Torvalds */ 820e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 8211da177e4SLinus Torvalds q = p; 8221da177e4SLinus Torvalds p += 3; 8231da177e4SLinus Torvalds 8241da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8251da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 826b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 8271da177e4SLinus Torvalds } 8281da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8291da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 830e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 8311da177e4SLinus Torvalds } 8321da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8331da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 834811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 8351da177e4SLinus Torvalds } 8361da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8371da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 838811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 8391da177e4SLinus Torvalds } 8401da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 8411da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 842e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 843e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 844e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 845e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8461da177e4SLinus Torvalds } 8471da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 8481da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 849e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8501da177e4SLinus Torvalds } 8511da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 8521da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 853e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 854e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 855e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 856e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8571da177e4SLinus Torvalds } 8581da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 8591da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 860e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8611da177e4SLinus Torvalds } 8621da177e4SLinus Torvalds 8631da177e4SLinus Torvalds /* 8641da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 8651da177e4SLinus Torvalds */ 8661da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 867fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 8681da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 8691da177e4SLinus Torvalds BUG(); 8701da177e4SLinus Torvalds } 8711da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 8721da177e4SLinus Torvalds *q++ = htonl(bmval0); 8731da177e4SLinus Torvalds *q++ = htonl(bmval1); 87434558513SBenny Halevy *q = htonl(len); 8751da177e4SLinus Torvalds 8761da177e4SLinus Torvalds /* out: */ 8771da177e4SLinus Torvalds } 8781da177e4SLinus Torvalds 879cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 8801da177e4SLinus Torvalds { 8818687b63aSAl Viro __be32 *p; 8821da177e4SLinus Torvalds 88313c65ce9SBenny Halevy p = reserve_space(xdr, 8); 884e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 88534558513SBenny Halevy *p = cpu_to_be32(access); 886d017931cSAndy Adamson hdr->nops++; 887dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 8881da177e4SLinus Torvalds } 8891da177e4SLinus Torvalds 890cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 8911da177e4SLinus Torvalds { 8928687b63aSAl Viro __be32 *p; 8931da177e4SLinus Torvalds 89413c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 895e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 896e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 89734558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 898d017931cSAndy Adamson hdr->nops++; 899dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9001da177e4SLinus Torvalds } 9011da177e4SLinus Torvalds 902cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9031da177e4SLinus Torvalds { 9048687b63aSAl Viro __be32 *p; 9051da177e4SLinus Torvalds 90613c65ce9SBenny Halevy p = reserve_space(xdr, 16); 907e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 908b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 90934558513SBenny Halevy *p = cpu_to_be32(args->count); 910d017931cSAndy Adamson hdr->nops++; 911dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9121da177e4SLinus Torvalds } 9131da177e4SLinus Torvalds 914cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9151da177e4SLinus Torvalds { 9168687b63aSAl Viro __be32 *p; 9171da177e4SLinus Torvalds 91813c65ce9SBenny Halevy p = reserve_space(xdr, 8); 919e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 92034558513SBenny Halevy *p = cpu_to_be32(create->ftype); 9211da177e4SLinus Torvalds 9221da177e4SLinus Torvalds switch (create->ftype) { 9231da177e4SLinus Torvalds case NF4LNK: 92413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 92534558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 92694a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9271da177e4SLinus Torvalds break; 9281da177e4SLinus Torvalds 9291da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 93013c65ce9SBenny Halevy p = reserve_space(xdr, 8); 931e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 93234558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 9331da177e4SLinus Torvalds break; 9341da177e4SLinus Torvalds 9351da177e4SLinus Torvalds default: 9361da177e4SLinus Torvalds break; 9371da177e4SLinus Torvalds } 9381da177e4SLinus Torvalds 939811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 940d017931cSAndy Adamson hdr->nops++; 941dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 9421da177e4SLinus Torvalds 943cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 9441da177e4SLinus Torvalds } 9451da177e4SLinus Torvalds 946cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 9471da177e4SLinus Torvalds { 9488687b63aSAl Viro __be32 *p; 9491da177e4SLinus Torvalds 95013c65ce9SBenny Halevy p = reserve_space(xdr, 12); 951e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 952e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 95334558513SBenny Halevy *p = cpu_to_be32(bitmap); 954d017931cSAndy Adamson hdr->nops++; 955dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9561da177e4SLinus Torvalds } 9571da177e4SLinus Torvalds 958cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 9591da177e4SLinus Torvalds { 9608687b63aSAl Viro __be32 *p; 9611da177e4SLinus Torvalds 96213c65ce9SBenny Halevy p = reserve_space(xdr, 16); 963e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 964e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 965e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 96634558513SBenny Halevy *p = cpu_to_be32(bm1); 967d017931cSAndy Adamson hdr->nops++; 968dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9691da177e4SLinus Torvalds } 9701da177e4SLinus Torvalds 971cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9721da177e4SLinus Torvalds { 973cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 974d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 9751da177e4SLinus Torvalds } 9761da177e4SLinus Torvalds 977cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9781da177e4SLinus Torvalds { 979cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 980d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 9811da177e4SLinus Torvalds } 9821da177e4SLinus Torvalds 983cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 984830b8e33SManoj Naik { 985cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 986cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 987830b8e33SManoj Naik } 988830b8e33SManoj Naik 989cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 9901da177e4SLinus Torvalds { 9918687b63aSAl Viro __be32 *p; 9921da177e4SLinus Torvalds 99313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 99434558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 995d017931cSAndy Adamson hdr->nops++; 996dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 9971da177e4SLinus Torvalds } 9981da177e4SLinus Torvalds 999cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10001da177e4SLinus Torvalds { 10018687b63aSAl Viro __be32 *p; 10021da177e4SLinus Torvalds 100313c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1004e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1005811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1006d017931cSAndy Adamson hdr->nops++; 1007dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10081da177e4SLinus Torvalds } 10091da177e4SLinus Torvalds 1010911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1011911d1aafSTrond Myklebust { 1012911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1013911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1014911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1015911d1aafSTrond Myklebust } 1016911d1aafSTrond Myklebust 1017911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1018911d1aafSTrond Myklebust { 1019911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1020911d1aafSTrond Myklebust return ~(uint64_t)0; 1021911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1022911d1aafSTrond Myklebust } 1023911d1aafSTrond Myklebust 10241da177e4SLinus Torvalds /* 10251da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 10261da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 10271da177e4SLinus Torvalds */ 1028cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 10291da177e4SLinus Torvalds { 10308687b63aSAl Viro __be32 *p; 10311da177e4SLinus Torvalds 103213c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1033e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1034e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1035e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1036b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1037b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 103834558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1039911d1aafSTrond Myklebust if (args->new_lock_owner){ 104013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32); 1041e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 104293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1043e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1044b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1045e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 104693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "lock id:", 8); 104734558513SBenny Halevy xdr_encode_hyper(p, args->lock_owner.id); 10481da177e4SLinus Torvalds } 10491da177e4SLinus Torvalds else { 105013c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 105193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 105234558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 10531da177e4SLinus Torvalds } 1054d017931cSAndy Adamson hdr->nops++; 1055dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 10561da177e4SLinus Torvalds } 10571da177e4SLinus Torvalds 1058cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 10591da177e4SLinus Torvalds { 10608687b63aSAl Viro __be32 *p; 10611da177e4SLinus Torvalds 106213c65ce9SBenny Halevy p = reserve_space(xdr, 52); 1063e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1064e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1065b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1066b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1067b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1068e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 106993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "lock id:", 8); 107034558513SBenny Halevy xdr_encode_hyper(p, args->lock_owner.id); 1071d017931cSAndy Adamson hdr->nops++; 1072dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 10731da177e4SLinus Torvalds } 10741da177e4SLinus Torvalds 1075cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 10761da177e4SLinus Torvalds { 10778687b63aSAl Viro __be32 *p; 10781da177e4SLinus Torvalds 107913c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1080e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1081e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1082e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 108393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1084b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 108534558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1086d017931cSAndy Adamson hdr->nops++; 1087dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 10881da177e4SLinus Torvalds } 10891da177e4SLinus Torvalds 1090cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10911da177e4SLinus Torvalds { 10921da177e4SLinus Torvalds int len = name->len; 10938687b63aSAl Viro __be32 *p; 10941da177e4SLinus Torvalds 109513c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1096e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1097811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1098d017931cSAndy Adamson hdr->nops++; 1099dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11001da177e4SLinus Torvalds } 11011da177e4SLinus Torvalds 1102dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11031da177e4SLinus Torvalds { 11048687b63aSAl Viro __be32 *p; 11051da177e4SLinus Torvalds 110613c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1107dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11081da177e4SLinus Torvalds case FMODE_READ: 1109e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11101da177e4SLinus Torvalds break; 11111da177e4SLinus Torvalds case FMODE_WRITE: 1112e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11131da177e4SLinus Torvalds break; 11141da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1115e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11161da177e4SLinus Torvalds break; 11171da177e4SLinus Torvalds default: 1118e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11191da177e4SLinus Torvalds } 112034558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 11211da177e4SLinus Torvalds } 11221da177e4SLinus Torvalds 11231da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11241da177e4SLinus Torvalds { 11258687b63aSAl Viro __be32 *p; 11261da177e4SLinus Torvalds /* 11271da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 11281da177e4SLinus Torvalds * owner 4 = 32 11291da177e4SLinus Torvalds */ 113013c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1131e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 113234558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1133dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 113413c65ce9SBenny Halevy p = reserve_space(xdr, 28); 1135b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1136e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 113793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 113834558513SBenny Halevy xdr_encode_hyper(p, arg->id); 11391da177e4SLinus Torvalds } 11401da177e4SLinus Torvalds 11411da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11421da177e4SLinus Torvalds { 11438687b63aSAl Viro __be32 *p; 11441da177e4SLinus Torvalds 114513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 11461da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 11471da177e4SLinus Torvalds case 0: 114834558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 11491da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 11501da177e4SLinus Torvalds break; 11511da177e4SLinus Torvalds default: 115234558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 11531da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 11541da177e4SLinus Torvalds } 11551da177e4SLinus Torvalds } 11561da177e4SLinus Torvalds 11571da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11581da177e4SLinus Torvalds { 11598687b63aSAl Viro __be32 *p; 11601da177e4SLinus Torvalds 116113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 11621da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 11631da177e4SLinus Torvalds case 0: 116434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 11651da177e4SLinus Torvalds break; 11661da177e4SLinus Torvalds default: 11671da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 116834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 11691da177e4SLinus Torvalds encode_createmode(xdr, arg); 11701da177e4SLinus Torvalds } 11711da177e4SLinus Torvalds } 11721da177e4SLinus Torvalds 1173bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 11741da177e4SLinus Torvalds { 11758687b63aSAl Viro __be32 *p; 11761da177e4SLinus Torvalds 117713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 11781da177e4SLinus Torvalds switch (delegation_type) { 11791da177e4SLinus Torvalds case 0: 118034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 11811da177e4SLinus Torvalds break; 11821da177e4SLinus Torvalds case FMODE_READ: 118334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 11841da177e4SLinus Torvalds break; 11851da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 118634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 11871da177e4SLinus Torvalds break; 11881da177e4SLinus Torvalds default: 11891da177e4SLinus Torvalds BUG(); 11901da177e4SLinus Torvalds } 11911da177e4SLinus Torvalds } 11921da177e4SLinus Torvalds 11931da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 11941da177e4SLinus Torvalds { 11958687b63aSAl Viro __be32 *p; 11961da177e4SLinus Torvalds 119713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 119834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 11991da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12001da177e4SLinus Torvalds } 12011da177e4SLinus Torvalds 1202bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12031da177e4SLinus Torvalds { 12048687b63aSAl Viro __be32 *p; 12051da177e4SLinus Torvalds 120613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 120734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 12081da177e4SLinus Torvalds encode_delegation_type(xdr, type); 12091da177e4SLinus Torvalds } 12101da177e4SLinus Torvalds 12111da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 12121da177e4SLinus Torvalds { 12138687b63aSAl Viro __be32 *p; 12141da177e4SLinus Torvalds 121513c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1216e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 121734558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 12181da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12191da177e4SLinus Torvalds } 12201da177e4SLinus Torvalds 1221cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 12221da177e4SLinus Torvalds { 12231da177e4SLinus Torvalds encode_openhdr(xdr, arg); 12241da177e4SLinus Torvalds encode_opentype(xdr, arg); 12251da177e4SLinus Torvalds switch (arg->claim) { 12261da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 12271da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 12281da177e4SLinus Torvalds break; 12291da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 12301da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 12311da177e4SLinus Torvalds break; 12321da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 12331da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 12341da177e4SLinus Torvalds break; 12351da177e4SLinus Torvalds default: 12361da177e4SLinus Torvalds BUG(); 12371da177e4SLinus Torvalds } 1238d017931cSAndy Adamson hdr->nops++; 1239dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 12401da177e4SLinus Torvalds } 12411da177e4SLinus Torvalds 1242cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 12431da177e4SLinus Torvalds { 12448687b63aSAl Viro __be32 *p; 12451da177e4SLinus Torvalds 124613c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1247e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 124893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 124934558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1250d017931cSAndy Adamson hdr->nops++; 1251dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 12521da177e4SLinus Torvalds } 12531da177e4SLinus Torvalds 1254cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 12551da177e4SLinus Torvalds { 12568687b63aSAl Viro __be32 *p; 12571da177e4SLinus Torvalds 125813c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1259e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 126093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 126134558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1262dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1263d017931cSAndy Adamson hdr->nops++; 1264dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 12651da177e4SLinus Torvalds } 12661da177e4SLinus Torvalds 1267cf8cdbe5SAndy Adamson static void 1268d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 12691da177e4SLinus Torvalds { 12701da177e4SLinus Torvalds int len = fh->size; 12718687b63aSAl Viro __be32 *p; 12721da177e4SLinus Torvalds 127313c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1274e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1275811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1276d017931cSAndy Adamson hdr->nops++; 1277dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 12781da177e4SLinus Torvalds } 12791da177e4SLinus Torvalds 1280cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12811da177e4SLinus Torvalds { 12828687b63aSAl Viro __be32 *p; 12831da177e4SLinus Torvalds 128413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 128534558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1286d017931cSAndy Adamson hdr->nops++; 1287dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 12881da177e4SLinus Torvalds } 12891da177e4SLinus Torvalds 12901da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 12911da177e4SLinus Torvalds { 12921da177e4SLinus Torvalds nfs4_stateid stateid; 12938687b63aSAl Viro __be32 *p; 12941da177e4SLinus Torvalds 129513c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 12961da177e4SLinus Torvalds if (ctx->state != NULL) { 12971da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 129834558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 12991da177e4SLinus Torvalds } else 130034558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 13011da177e4SLinus Torvalds } 13021da177e4SLinus Torvalds 1303cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13041da177e4SLinus Torvalds { 13058687b63aSAl Viro __be32 *p; 13061da177e4SLinus Torvalds 130713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 130834558513SBenny Halevy *p = cpu_to_be32(OP_READ); 13091da177e4SLinus Torvalds 13101da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13111da177e4SLinus Torvalds 131213c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1313b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 131434558513SBenny Halevy *p = cpu_to_be32(args->count); 1315d017931cSAndy Adamson hdr->nops++; 1316dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 13171da177e4SLinus Torvalds } 13181da177e4SLinus Torvalds 1319cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 13201da177e4SLinus Torvalds { 132197d312d0SManoj Naik uint32_t attrs[2] = { 132297d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 132397d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 132497d312d0SManoj Naik }; 13258687b63aSAl Viro __be32 *p; 13261da177e4SLinus Torvalds 132713c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 1328e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READDIR); 1329b95be5a9SBenny Halevy p = xdr_encode_hyper(p, readdir->cookie); 133093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 1331e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ 1332e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count); 1333e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 133497d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 133597d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 133697d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 133797d312d0SManoj Naik else 133897d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1339e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 134034558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1341d017931cSAndy Adamson hdr->nops++; 1342dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 134344109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 134444109241SFred Isaman __func__, 1345eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1346eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1347eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1348eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1349eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 13501da177e4SLinus Torvalds } 13511da177e4SLinus Torvalds 1352cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 13531da177e4SLinus Torvalds { 13548687b63aSAl Viro __be32 *p; 13551da177e4SLinus Torvalds 135613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 135734558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1358d017931cSAndy Adamson hdr->nops++; 1359dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 13601da177e4SLinus Torvalds } 13611da177e4SLinus Torvalds 1362cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13631da177e4SLinus Torvalds { 13648687b63aSAl Viro __be32 *p; 13651da177e4SLinus Torvalds 136613c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1367e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1368811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1369d017931cSAndy Adamson hdr->nops++; 1370dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 13711da177e4SLinus Torvalds } 13721da177e4SLinus Torvalds 1373cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 13741da177e4SLinus Torvalds { 13758687b63aSAl Viro __be32 *p; 13761da177e4SLinus Torvalds 1377811652bdSBenny Halevy p = reserve_space(xdr, 4); 1378811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1379811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1380811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1381d017931cSAndy Adamson hdr->nops++; 1382dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 13831da177e4SLinus Torvalds } 13841da177e4SLinus Torvalds 1385cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 13861da177e4SLinus Torvalds { 13878687b63aSAl Viro __be32 *p; 13881da177e4SLinus Torvalds 138913c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1390e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 139134558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1392d017931cSAndy Adamson hdr->nops++; 1393dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 13941da177e4SLinus Torvalds } 13951da177e4SLinus Torvalds 1396cf8cdbe5SAndy Adamson static void 1397d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 139856ae19f3STrond Myklebust { 13998687b63aSAl Viro __be32 *p; 140056ae19f3STrond Myklebust 140113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 140234558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1403d017931cSAndy Adamson hdr->nops++; 1404dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 140556ae19f3STrond Myklebust } 140656ae19f3STrond Myklebust 140756ae19f3STrond Myklebust static int 1408d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 140923ec6965SJ. Bruce Fields { 14108687b63aSAl Viro __be32 *p; 141123ec6965SJ. Bruce Fields 141213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1413e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 141434558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 141513c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1416e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 141734558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 141823ec6965SJ. Bruce Fields if (arg->acl_len % 4) 141923ec6965SJ. Bruce Fields return -EINVAL; 142013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 142134558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 142223ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1423d017931cSAndy Adamson hdr->nops++; 1424dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 142523ec6965SJ. Bruce Fields return 0; 142623ec6965SJ. Bruce Fields } 142723ec6965SJ. Bruce Fields 1428cf8cdbe5SAndy Adamson static void 1429d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14301da177e4SLinus Torvalds { 14318687b63aSAl Viro __be32 *p; 14321da177e4SLinus Torvalds 143313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143434558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1435d017931cSAndy Adamson hdr->nops++; 1436dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 14371da177e4SLinus Torvalds } 14381da177e4SLinus Torvalds 1439cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 14401da177e4SLinus Torvalds { 14418687b63aSAl Viro __be32 *p; 14421da177e4SLinus Torvalds 144313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1444e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 144534558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1446d017931cSAndy Adamson hdr->nops++; 1447dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1448cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 14491da177e4SLinus Torvalds } 14501da177e4SLinus Torvalds 1451cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 14521da177e4SLinus Torvalds { 14538687b63aSAl Viro __be32 *p; 14541da177e4SLinus Torvalds 145513c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1456e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 145734558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 14581da177e4SLinus Torvalds 14591da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 146013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146134558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 14621da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 14631da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 146413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 146534558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1466d017931cSAndy Adamson hdr->nops++; 1467dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 14681da177e4SLinus Torvalds } 14691da177e4SLinus Torvalds 1470cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 14711da177e4SLinus Torvalds { 14728687b63aSAl Viro __be32 *p; 14731da177e4SLinus Torvalds 147413c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1475e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1476b95be5a9SBenny Halevy p = xdr_encode_hyper(p, client_state->cl_clientid); 147734558513SBenny Halevy xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1478d017931cSAndy Adamson hdr->nops++; 1479dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 14801da177e4SLinus Torvalds } 14811da177e4SLinus Torvalds 1482cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 14831da177e4SLinus Torvalds { 14848687b63aSAl Viro __be32 *p; 14851da177e4SLinus Torvalds 148613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 148734558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 14881da177e4SLinus Torvalds 14891da177e4SLinus Torvalds encode_stateid(xdr, args->context); 14901da177e4SLinus Torvalds 149113c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1492b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1493e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 149434558513SBenny Halevy *p = cpu_to_be32(args->count); 14951da177e4SLinus Torvalds 14961da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1497d017931cSAndy Adamson hdr->nops++; 1498dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 14991da177e4SLinus Torvalds } 15001da177e4SLinus Torvalds 1501cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15021da177e4SLinus Torvalds { 15038687b63aSAl Viro __be32 *p; 15041da177e4SLinus Torvalds 150513c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 15061da177e4SLinus Torvalds 1507e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 150834558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1509d017931cSAndy Adamson hdr->nops++; 1510dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15111da177e4SLinus Torvalds } 15129b7b9fccSAndy Adamson 151399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15149b7b9fccSAndy Adamson /* NFSv4.1 operations */ 151599fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 151699fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 151799fe60d0SBenny Halevy struct compound_hdr *hdr) 151899fe60d0SBenny Halevy { 151999fe60d0SBenny Halevy __be32 *p; 152099fe60d0SBenny Halevy 152113c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1522e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 152334558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 152499fe60d0SBenny Halevy 152599fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 152699fe60d0SBenny Halevy 152713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1528e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1529e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 153034558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 153199fe60d0SBenny Halevy hdr->nops++; 153299fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 153399fe60d0SBenny Halevy } 1534fc931582SAndy Adamson 1535fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1536fc931582SAndy Adamson struct nfs41_create_session_args *args, 1537fc931582SAndy Adamson struct compound_hdr *hdr) 1538fc931582SAndy Adamson { 1539fc931582SAndy Adamson __be32 *p; 1540fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1541fc931582SAndy Adamson uint32_t len; 1542fc931582SAndy Adamson struct nfs_client *clp = args->client; 1543fc931582SAndy Adamson 154442edd698SBenny Halevy len = scnprintf(machine_name, sizeof(machine_name), "%s", 154542edd698SBenny Halevy clp->cl_ipaddr); 154642edd698SBenny Halevy 154713c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1548e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1549b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1550e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1551e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1552fc931582SAndy Adamson 1553fc931582SAndy Adamson /* Fore Channel */ 1554e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1555e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1556e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 1557e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1558e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1559e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1560e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1561fc931582SAndy Adamson 1562fc931582SAndy Adamson /* Back Channel */ 1563e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1564e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1565e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1566e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1567e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1568e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1569e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1570fc931582SAndy Adamson 1571e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1572e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1573e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1574fc931582SAndy Adamson 1575fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1576e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1577811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1578e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1579e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 158034558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1581fc931582SAndy Adamson hdr->nops++; 1582fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1583fc931582SAndy Adamson } 15840f3e66c6SAndy Adamson 15850f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 15860f3e66c6SAndy Adamson struct nfs4_session *session, 15870f3e66c6SAndy Adamson struct compound_hdr *hdr) 15880f3e66c6SAndy Adamson { 15890f3e66c6SAndy Adamson __be32 *p; 159013c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1591e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 159234558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 15930f3e66c6SAndy Adamson hdr->nops++; 15940f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 15950f3e66c6SAndy Adamson } 159699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 159799fe60d0SBenny Halevy 15989b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 15999b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 16009b7b9fccSAndy Adamson struct compound_hdr *hdr) 16019b7b9fccSAndy Adamson { 16029b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 16039b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1604fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1605fc01cea9SAndy Adamson struct nfs4_slot *slot; 1606fc01cea9SAndy Adamson __be32 *p; 16079b7b9fccSAndy Adamson 16089b7b9fccSAndy Adamson if (!session) 16099b7b9fccSAndy Adamson return; 16109b7b9fccSAndy Adamson 1611fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1612fc01cea9SAndy Adamson 1613fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1614fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1615fc01cea9SAndy Adamson 161613c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1617e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1618fc01cea9SAndy Adamson 1619fc01cea9SAndy Adamson /* 1620fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1621fc01cea9SAndy Adamson */ 1622fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1623fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1624fc01cea9SAndy Adamson __func__, 1625fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1626fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1627fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1628fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1629fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1630fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 163193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1632e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1633e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1634e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 163534558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 16369b7b9fccSAndy Adamson hdr->nops++; 16379b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 16389b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 16399b7b9fccSAndy Adamson } 16409b7b9fccSAndy Adamson 16411da177e4SLinus Torvalds /* 16421da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 16431da177e4SLinus Torvalds */ 16441da177e4SLinus Torvalds 164566cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 164666cc0429SBenny Halevy { 164766cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 164866cc0429SBenny Halevy if (args->sa_session) 164966cc0429SBenny Halevy return args->sa_session->clp->cl_minorversion; 165066cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 165166cc0429SBenny Halevy return 0; 165266cc0429SBenny Halevy } 165366cc0429SBenny Halevy 16541da177e4SLinus Torvalds /* 16551da177e4SLinus Torvalds * Encode an ACCESS request 16561da177e4SLinus Torvalds */ 16578687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 16581da177e4SLinus Torvalds { 16591da177e4SLinus Torvalds struct xdr_stream xdr; 16601da177e4SLinus Torvalds struct compound_hdr hdr = { 166166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 16621da177e4SLinus Torvalds }; 16631da177e4SLinus Torvalds 16641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16650c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 16669b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1667cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1668cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1669cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1670d017931cSAndy Adamson encode_nops(&hdr); 1671cf8cdbe5SAndy Adamson return 0; 16721da177e4SLinus Torvalds } 16731da177e4SLinus Torvalds 16741da177e4SLinus Torvalds /* 16751da177e4SLinus Torvalds * Encode LOOKUP request 16761da177e4SLinus Torvalds */ 16778687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 16781da177e4SLinus Torvalds { 16791da177e4SLinus Torvalds struct xdr_stream xdr; 16801da177e4SLinus Torvalds struct compound_hdr hdr = { 168166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 16821da177e4SLinus Torvalds }; 16831da177e4SLinus Torvalds 16841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 16869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1687cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1688cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1689cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1690cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1691d017931cSAndy Adamson encode_nops(&hdr); 1692cf8cdbe5SAndy Adamson return 0; 16931da177e4SLinus Torvalds } 16941da177e4SLinus Torvalds 16951da177e4SLinus Torvalds /* 16961da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 16971da177e4SLinus Torvalds */ 16988687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 16991da177e4SLinus Torvalds { 17001da177e4SLinus Torvalds struct xdr_stream xdr; 17011da177e4SLinus Torvalds struct compound_hdr hdr = { 170266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17031da177e4SLinus Torvalds }; 17041da177e4SLinus Torvalds 17051da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17060c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17079b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1708cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1709cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1710cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1711d017931cSAndy Adamson encode_nops(&hdr); 1712cf8cdbe5SAndy Adamson return 0; 17131da177e4SLinus Torvalds } 17141da177e4SLinus Torvalds 17151da177e4SLinus Torvalds /* 17161da177e4SLinus Torvalds * Encode REMOVE request 17171da177e4SLinus Torvalds */ 17184fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 17191da177e4SLinus Torvalds { 17201da177e4SLinus Torvalds struct xdr_stream xdr; 17211da177e4SLinus Torvalds struct compound_hdr hdr = { 172266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17231da177e4SLinus Torvalds }; 17241da177e4SLinus Torvalds 17251da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17260c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17279b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1728cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1729cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1730cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1731d017931cSAndy Adamson encode_nops(&hdr); 1732cf8cdbe5SAndy Adamson return 0; 17331da177e4SLinus Torvalds } 17341da177e4SLinus Torvalds 17351da177e4SLinus Torvalds /* 17361da177e4SLinus Torvalds * Encode RENAME request 17371da177e4SLinus Torvalds */ 17388687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 17391da177e4SLinus Torvalds { 17401da177e4SLinus Torvalds struct xdr_stream xdr; 17411da177e4SLinus Torvalds struct compound_hdr hdr = { 174266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17431da177e4SLinus Torvalds }; 17441da177e4SLinus Torvalds 17451da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17460c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17479b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1748cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1749cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1750cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1751cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1752cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1753cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1754cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1755d017931cSAndy Adamson encode_nops(&hdr); 1756cf8cdbe5SAndy Adamson return 0; 17571da177e4SLinus Torvalds } 17581da177e4SLinus Torvalds 17591da177e4SLinus Torvalds /* 17601da177e4SLinus Torvalds * Encode LINK request 17611da177e4SLinus Torvalds */ 17628687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 17631da177e4SLinus Torvalds { 17641da177e4SLinus Torvalds struct xdr_stream xdr; 17651da177e4SLinus Torvalds struct compound_hdr hdr = { 176666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17671da177e4SLinus Torvalds }; 17681da177e4SLinus Torvalds 17691da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17700c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17719b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1772cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1773cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1774cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1775cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1776cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1777cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1778cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1779d017931cSAndy Adamson encode_nops(&hdr); 1780cf8cdbe5SAndy Adamson return 0; 17811da177e4SLinus Torvalds } 17821da177e4SLinus Torvalds 17831da177e4SLinus Torvalds /* 17841da177e4SLinus Torvalds * Encode CREATE request 17851da177e4SLinus Torvalds */ 17868687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 17871da177e4SLinus Torvalds { 17881da177e4SLinus Torvalds struct xdr_stream xdr; 17891da177e4SLinus Torvalds struct compound_hdr hdr = { 179066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17911da177e4SLinus Torvalds }; 17921da177e4SLinus Torvalds 17931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17940c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17959b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1796cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1797cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1798cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1799cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1800cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1801cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1802cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1803d017931cSAndy Adamson encode_nops(&hdr); 1804cf8cdbe5SAndy Adamson return 0; 18051da177e4SLinus Torvalds } 18061da177e4SLinus Torvalds 18071da177e4SLinus Torvalds /* 18081da177e4SLinus Torvalds * Encode SYMLINK request 18091da177e4SLinus Torvalds */ 18108687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18111da177e4SLinus Torvalds { 18121da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 18131da177e4SLinus Torvalds } 18141da177e4SLinus Torvalds 18151da177e4SLinus Torvalds /* 18161da177e4SLinus Torvalds * Encode GETATTR request 18171da177e4SLinus Torvalds */ 18188687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 18191da177e4SLinus Torvalds { 18201da177e4SLinus Torvalds struct xdr_stream xdr; 18211da177e4SLinus Torvalds struct compound_hdr hdr = { 182266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18231da177e4SLinus Torvalds }; 18241da177e4SLinus Torvalds 18251da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18260c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18279b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1828cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1829cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1830d017931cSAndy Adamson encode_nops(&hdr); 1831cf8cdbe5SAndy Adamson return 0; 18321da177e4SLinus Torvalds } 18331da177e4SLinus Torvalds 18341da177e4SLinus Torvalds /* 18351da177e4SLinus Torvalds * Encode a CLOSE request 18361da177e4SLinus Torvalds */ 18378687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 18381da177e4SLinus Torvalds { 18391da177e4SLinus Torvalds struct xdr_stream xdr; 18401da177e4SLinus Torvalds struct compound_hdr hdr = { 184166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18421da177e4SLinus Torvalds }; 18431da177e4SLinus Torvalds 18441da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18450c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18469b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1847cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1848cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1849cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1850d017931cSAndy Adamson encode_nops(&hdr); 1851cf8cdbe5SAndy Adamson return 0; 18521da177e4SLinus Torvalds } 18531da177e4SLinus Torvalds 18541da177e4SLinus Torvalds /* 18551da177e4SLinus Torvalds * Encode an OPEN request 18561da177e4SLinus Torvalds */ 18578687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 18581da177e4SLinus Torvalds { 18591da177e4SLinus Torvalds struct xdr_stream xdr; 18601da177e4SLinus Torvalds struct compound_hdr hdr = { 186166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18621da177e4SLinus Torvalds }; 18631da177e4SLinus Torvalds 18641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18650c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18669b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1867cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1868cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1869cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1870cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1871cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1872cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1873cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1874d017931cSAndy Adamson encode_nops(&hdr); 1875cf8cdbe5SAndy Adamson return 0; 18761da177e4SLinus Torvalds } 18771da177e4SLinus Torvalds 18781da177e4SLinus Torvalds /* 18791da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 18801da177e4SLinus Torvalds */ 18818687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 18821da177e4SLinus Torvalds { 18831da177e4SLinus Torvalds struct xdr_stream xdr; 18841da177e4SLinus Torvalds struct compound_hdr hdr = { 1885d017931cSAndy Adamson .nops = 0, 18861da177e4SLinus Torvalds }; 18871da177e4SLinus Torvalds 18881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18890c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1890cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1891cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1892d017931cSAndy Adamson encode_nops(&hdr); 1893cf8cdbe5SAndy Adamson return 0; 18941da177e4SLinus Torvalds } 18951da177e4SLinus Torvalds 18961da177e4SLinus Torvalds /* 18971da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 18981da177e4SLinus Torvalds */ 18998687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19001da177e4SLinus Torvalds { 19011da177e4SLinus Torvalds struct xdr_stream xdr; 19021da177e4SLinus Torvalds struct compound_hdr hdr = { 190366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19041da177e4SLinus Torvalds }; 19051da177e4SLinus Torvalds 19061da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19070c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19089b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1909cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1910cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1911cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1912d017931cSAndy Adamson encode_nops(&hdr); 1913cf8cdbe5SAndy Adamson return 0; 19141da177e4SLinus Torvalds } 19151da177e4SLinus Torvalds 19161da177e4SLinus Torvalds /* 19171da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 19181da177e4SLinus Torvalds */ 19198687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19201da177e4SLinus Torvalds { 19211da177e4SLinus Torvalds struct xdr_stream xdr; 19221da177e4SLinus Torvalds struct compound_hdr hdr = { 192366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19241da177e4SLinus Torvalds }; 19251da177e4SLinus Torvalds 19261da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19270c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19289b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1929cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1930cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1931cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1932d017931cSAndy Adamson encode_nops(&hdr); 1933cf8cdbe5SAndy Adamson return 0; 19341da177e4SLinus Torvalds } 19351da177e4SLinus Torvalds 19361da177e4SLinus Torvalds /* 19371da177e4SLinus Torvalds * Encode a LOCK request 19381da177e4SLinus Torvalds */ 19398687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 19401da177e4SLinus Torvalds { 19411da177e4SLinus Torvalds struct xdr_stream xdr; 19421da177e4SLinus Torvalds struct compound_hdr hdr = { 194366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19441da177e4SLinus Torvalds }; 19451da177e4SLinus Torvalds 19461da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19470c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19489b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1949cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1950cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 1951d017931cSAndy Adamson encode_nops(&hdr); 1952cf8cdbe5SAndy Adamson return 0; 19531da177e4SLinus Torvalds } 19541da177e4SLinus Torvalds 19551da177e4SLinus Torvalds /* 19561da177e4SLinus Torvalds * Encode a LOCKT request 19571da177e4SLinus Torvalds */ 19588687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 19591da177e4SLinus Torvalds { 19601da177e4SLinus Torvalds struct xdr_stream xdr; 19611da177e4SLinus Torvalds struct compound_hdr hdr = { 196266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19631da177e4SLinus Torvalds }; 19641da177e4SLinus Torvalds 19651da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19660c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19679b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1968cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1969cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 1970d017931cSAndy Adamson encode_nops(&hdr); 1971cf8cdbe5SAndy Adamson return 0; 19721da177e4SLinus Torvalds } 19731da177e4SLinus Torvalds 19741da177e4SLinus Torvalds /* 19751da177e4SLinus Torvalds * Encode a LOCKU request 19761da177e4SLinus Torvalds */ 19778687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 19781da177e4SLinus Torvalds { 19791da177e4SLinus Torvalds struct xdr_stream xdr; 19801da177e4SLinus Torvalds struct compound_hdr hdr = { 198166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19821da177e4SLinus Torvalds }; 19831da177e4SLinus Torvalds 19841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1987cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1988cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 1989d017931cSAndy Adamson encode_nops(&hdr); 1990cf8cdbe5SAndy Adamson return 0; 19911da177e4SLinus Torvalds } 19921da177e4SLinus Torvalds 19931da177e4SLinus Torvalds /* 19941da177e4SLinus Torvalds * Encode a READLINK request 19951da177e4SLinus Torvalds */ 19968687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 19971da177e4SLinus Torvalds { 19981da177e4SLinus Torvalds struct xdr_stream xdr; 19991da177e4SLinus Torvalds struct compound_hdr hdr = { 200066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20011da177e4SLinus Torvalds }; 20021da177e4SLinus Torvalds 20031da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20040c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20059b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2006cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2007cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2008e3a535e1STrond Myklebust 200928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2010e3a535e1STrond Myklebust args->pgbase, args->pglen); 2011d017931cSAndy Adamson encode_nops(&hdr); 2012cf8cdbe5SAndy Adamson return 0; 20131da177e4SLinus Torvalds } 20141da177e4SLinus Torvalds 20151da177e4SLinus Torvalds /* 20161da177e4SLinus Torvalds * Encode a READDIR request 20171da177e4SLinus Torvalds */ 20188687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 20191da177e4SLinus Torvalds { 20201da177e4SLinus Torvalds struct xdr_stream xdr; 20211da177e4SLinus Torvalds struct compound_hdr hdr = { 202266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20231da177e4SLinus Torvalds }; 20241da177e4SLinus Torvalds 20251da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20260c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20279b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2028cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2029cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2030d6ac02dfSTrond Myklebust 203128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2032d6ac02dfSTrond Myklebust args->pgbase, args->count); 2033d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 203428f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2035d6ac02dfSTrond Myklebust args->pgbase, args->count); 2036d017931cSAndy Adamson encode_nops(&hdr); 2037cf8cdbe5SAndy Adamson return 0; 20381da177e4SLinus Torvalds } 20391da177e4SLinus Torvalds 20401da177e4SLinus Torvalds /* 20411da177e4SLinus Torvalds * Encode a READ request 20421da177e4SLinus Torvalds */ 20438687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 20441da177e4SLinus Torvalds { 20451da177e4SLinus Torvalds struct xdr_stream xdr; 20461da177e4SLinus Torvalds struct compound_hdr hdr = { 204766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20481da177e4SLinus Torvalds }; 20491da177e4SLinus Torvalds 20501da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20510c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20529b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2053cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2054cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 20551da177e4SLinus Torvalds 205628f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 20571da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 20584f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2059d017931cSAndy Adamson encode_nops(&hdr); 2060cf8cdbe5SAndy Adamson return 0; 20611da177e4SLinus Torvalds } 20621da177e4SLinus Torvalds 20631da177e4SLinus Torvalds /* 20641da177e4SLinus Torvalds * Encode an SETATTR request 20651da177e4SLinus Torvalds */ 20668687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 20671da177e4SLinus Torvalds { 20681da177e4SLinus Torvalds struct xdr_stream xdr; 20691da177e4SLinus Torvalds struct compound_hdr hdr = { 207066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20711da177e4SLinus Torvalds }; 20721da177e4SLinus Torvalds 20731da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20740c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20759b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2076cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2077cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2078cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2079d017931cSAndy Adamson encode_nops(&hdr); 2080cf8cdbe5SAndy Adamson return 0; 20811da177e4SLinus Torvalds } 20821da177e4SLinus Torvalds 20831da177e4SLinus Torvalds /* 2084029d105eSJ. Bruce Fields * Encode a GETACL request 2085029d105eSJ. Bruce Fields */ 2086029d105eSJ. Bruce Fields static int 20878687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2088029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2089029d105eSJ. Bruce Fields { 2090029d105eSJ. Bruce Fields struct xdr_stream xdr; 2091029d105eSJ. Bruce Fields struct compound_hdr hdr = { 209266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2093029d105eSJ. Bruce Fields }; 209428f56694SBenny Halevy uint32_t replen; 2095029d105eSJ. Bruce Fields 2096029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20970c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20989b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2099cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 210028f56694SBenny Halevy replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; 2101cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2102cf8cdbe5SAndy Adamson 210328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2104029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2105d017931cSAndy Adamson encode_nops(&hdr); 2106cf8cdbe5SAndy Adamson return 0; 2107029d105eSJ. Bruce Fields } 2108029d105eSJ. Bruce Fields 2109029d105eSJ. Bruce Fields /* 21101da177e4SLinus Torvalds * Encode a WRITE request 21111da177e4SLinus Torvalds */ 21128687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21131da177e4SLinus Torvalds { 21141da177e4SLinus Torvalds struct xdr_stream xdr; 21151da177e4SLinus Torvalds struct compound_hdr hdr = { 211666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21171da177e4SLinus Torvalds }; 21181da177e4SLinus Torvalds 21191da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21200c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21219b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2122cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2123cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 21244f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2125cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2126d017931cSAndy Adamson encode_nops(&hdr); 2127cf8cdbe5SAndy Adamson return 0; 21281da177e4SLinus Torvalds } 21291da177e4SLinus Torvalds 21301da177e4SLinus Torvalds /* 21311da177e4SLinus Torvalds * a COMMIT request 21321da177e4SLinus Torvalds */ 21338687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21341da177e4SLinus Torvalds { 21351da177e4SLinus Torvalds struct xdr_stream xdr; 21361da177e4SLinus Torvalds struct compound_hdr hdr = { 213766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21381da177e4SLinus Torvalds }; 21391da177e4SLinus Torvalds 21401da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21410c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21429b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2143cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2144cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2145cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2146d017931cSAndy Adamson encode_nops(&hdr); 2147cf8cdbe5SAndy Adamson return 0; 21481da177e4SLinus Torvalds } 21491da177e4SLinus Torvalds 21501da177e4SLinus Torvalds /* 21511da177e4SLinus Torvalds * FSINFO request 21521da177e4SLinus Torvalds */ 21538687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 21541da177e4SLinus Torvalds { 21551da177e4SLinus Torvalds struct xdr_stream xdr; 21561da177e4SLinus Torvalds struct compound_hdr hdr = { 215766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21581da177e4SLinus Torvalds }; 21591da177e4SLinus Torvalds 21601da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21610c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21629b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2163cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2164cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2165d017931cSAndy Adamson encode_nops(&hdr); 2166cf8cdbe5SAndy Adamson return 0; 21671da177e4SLinus Torvalds } 21681da177e4SLinus Torvalds 21691da177e4SLinus Torvalds /* 21701da177e4SLinus Torvalds * a PATHCONF request 21711da177e4SLinus Torvalds */ 21728687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 21731da177e4SLinus Torvalds { 21741da177e4SLinus Torvalds struct xdr_stream xdr; 21751da177e4SLinus Torvalds struct compound_hdr hdr = { 217666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21771da177e4SLinus Torvalds }; 21781da177e4SLinus Torvalds 21791da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21800c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21819b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2182cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2183cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2184d017931cSAndy Adamson &hdr); 2185d017931cSAndy Adamson encode_nops(&hdr); 2186cf8cdbe5SAndy Adamson return 0; 21871da177e4SLinus Torvalds } 21881da177e4SLinus Torvalds 21891da177e4SLinus Torvalds /* 21901da177e4SLinus Torvalds * a STATFS request 21911da177e4SLinus Torvalds */ 21928687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 21931da177e4SLinus Torvalds { 21941da177e4SLinus Torvalds struct xdr_stream xdr; 21951da177e4SLinus Torvalds struct compound_hdr hdr = { 219666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21971da177e4SLinus Torvalds }; 21981da177e4SLinus Torvalds 21991da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22000c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22019b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2202cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2203cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2204d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2205d017931cSAndy Adamson encode_nops(&hdr); 2206cf8cdbe5SAndy Adamson return 0; 22071da177e4SLinus Torvalds } 22081da177e4SLinus Torvalds 22091da177e4SLinus Torvalds /* 22101da177e4SLinus Torvalds * GETATTR_BITMAP request 22111da177e4SLinus Torvalds */ 221243652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 221343652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 22141da177e4SLinus Torvalds { 22151da177e4SLinus Torvalds struct xdr_stream xdr; 22161da177e4SLinus Torvalds struct compound_hdr hdr = { 221766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22181da177e4SLinus Torvalds }; 22191da177e4SLinus Torvalds 22201da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22210c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22229b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 222343652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2224cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 22251da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 22261da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2227d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2228d017931cSAndy Adamson encode_nops(&hdr); 2229cf8cdbe5SAndy Adamson return 0; 22301da177e4SLinus Torvalds } 22311da177e4SLinus Torvalds 22321da177e4SLinus Torvalds /* 22331da177e4SLinus Torvalds * a RENEW request 22341da177e4SLinus Torvalds */ 22358687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22361da177e4SLinus Torvalds { 22371da177e4SLinus Torvalds struct xdr_stream xdr; 22381da177e4SLinus Torvalds struct compound_hdr hdr = { 2239d017931cSAndy Adamson .nops = 0, 22401da177e4SLinus Torvalds }; 22411da177e4SLinus Torvalds 22421da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22430c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2244cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2245d017931cSAndy Adamson encode_nops(&hdr); 2246cf8cdbe5SAndy Adamson return 0; 22471da177e4SLinus Torvalds } 22481da177e4SLinus Torvalds 22491da177e4SLinus Torvalds /* 22501da177e4SLinus Torvalds * a SETCLIENTID request 22511da177e4SLinus Torvalds */ 22528687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 22531da177e4SLinus Torvalds { 22541da177e4SLinus Torvalds struct xdr_stream xdr; 22551da177e4SLinus Torvalds struct compound_hdr hdr = { 2256d017931cSAndy Adamson .nops = 0, 22571da177e4SLinus Torvalds }; 22581da177e4SLinus Torvalds 22591da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22600c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2261cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2262d017931cSAndy Adamson encode_nops(&hdr); 2263cf8cdbe5SAndy Adamson return 0; 22641da177e4SLinus Torvalds } 22651da177e4SLinus Torvalds 22661da177e4SLinus Torvalds /* 22671da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 22681da177e4SLinus Torvalds */ 22698687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22701da177e4SLinus Torvalds { 22711da177e4SLinus Torvalds struct xdr_stream xdr; 22721da177e4SLinus Torvalds struct compound_hdr hdr = { 2273d017931cSAndy Adamson .nops = 0, 22741da177e4SLinus Torvalds }; 22751da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 22761da177e4SLinus Torvalds 22771da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22780c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2279cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 2280cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2281cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2282d017931cSAndy Adamson encode_nops(&hdr); 2283cf8cdbe5SAndy Adamson return 0; 22841da177e4SLinus Torvalds } 22851da177e4SLinus Torvalds 22861da177e4SLinus Torvalds /* 22871da177e4SLinus Torvalds * DELEGRETURN request 22881da177e4SLinus Torvalds */ 22898687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 22901da177e4SLinus Torvalds { 22911da177e4SLinus Torvalds struct xdr_stream xdr; 22921da177e4SLinus Torvalds struct compound_hdr hdr = { 229366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22941da177e4SLinus Torvalds }; 22951da177e4SLinus Torvalds 22961da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22970c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22989b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2299cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2300cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2301cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2302d017931cSAndy Adamson encode_nops(&hdr); 2303cf8cdbe5SAndy Adamson return 0; 23041da177e4SLinus Torvalds } 23051da177e4SLinus Torvalds 23061da177e4SLinus Torvalds /* 2307683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2308683b57b4STrond Myklebust */ 23098687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2310683b57b4STrond Myklebust { 2311683b57b4STrond Myklebust struct xdr_stream xdr; 2312683b57b4STrond Myklebust struct compound_hdr hdr = { 231366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2314683b57b4STrond Myklebust }; 231528f56694SBenny Halevy uint32_t replen; 2316683b57b4STrond Myklebust 2317683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23180c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23199b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2320cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2321cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 232228f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2323cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2324cf8cdbe5SAndy Adamson 232528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2326683b57b4STrond Myklebust 0, PAGE_SIZE); 2327d017931cSAndy Adamson encode_nops(&hdr); 2328cf8cdbe5SAndy Adamson return 0; 2329683b57b4STrond Myklebust } 2330683b57b4STrond Myklebust 233199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 233299fe60d0SBenny Halevy /* 233399fe60d0SBenny Halevy * EXCHANGE_ID request 233499fe60d0SBenny Halevy */ 233599fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 233699fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 233799fe60d0SBenny Halevy { 233899fe60d0SBenny Halevy struct xdr_stream xdr; 233999fe60d0SBenny Halevy struct compound_hdr hdr = { 234099fe60d0SBenny Halevy .minorversion = args->client->cl_minorversion, 234199fe60d0SBenny Halevy }; 234299fe60d0SBenny Halevy 234399fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 234499fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 234599fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 234699fe60d0SBenny Halevy encode_nops(&hdr); 234799fe60d0SBenny Halevy return 0; 234899fe60d0SBenny Halevy } 23492050f0ccSAndy Adamson 23502050f0ccSAndy Adamson /* 2351fc931582SAndy Adamson * a CREATE_SESSION request 2352fc931582SAndy Adamson */ 2353fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2354fc931582SAndy Adamson struct nfs41_create_session_args *args) 2355fc931582SAndy Adamson { 2356fc931582SAndy Adamson struct xdr_stream xdr; 2357fc931582SAndy Adamson struct compound_hdr hdr = { 2358fc931582SAndy Adamson .minorversion = args->client->cl_minorversion, 2359fc931582SAndy Adamson }; 2360fc931582SAndy Adamson 2361fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2362fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2363fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2364fc931582SAndy Adamson encode_nops(&hdr); 2365fc931582SAndy Adamson return 0; 2366fc931582SAndy Adamson } 2367fc931582SAndy Adamson 2368fc931582SAndy Adamson /* 23690f3e66c6SAndy Adamson * a DESTROY_SESSION request 23700f3e66c6SAndy Adamson */ 23710f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 23720f3e66c6SAndy Adamson struct nfs4_session *session) 23730f3e66c6SAndy Adamson { 23740f3e66c6SAndy Adamson struct xdr_stream xdr; 23750f3e66c6SAndy Adamson struct compound_hdr hdr = { 23760f3e66c6SAndy Adamson .minorversion = session->clp->cl_minorversion, 23770f3e66c6SAndy Adamson }; 23780f3e66c6SAndy Adamson 23790f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23800f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 23810f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 23820f3e66c6SAndy Adamson encode_nops(&hdr); 23830f3e66c6SAndy Adamson return 0; 23840f3e66c6SAndy Adamson } 23850f3e66c6SAndy Adamson 23860f3e66c6SAndy Adamson /* 2387fc01cea9SAndy Adamson * a SEQUENCE request 2388fc01cea9SAndy Adamson */ 2389fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2390fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2391fc01cea9SAndy Adamson { 2392fc01cea9SAndy Adamson struct xdr_stream xdr; 2393fc01cea9SAndy Adamson struct compound_hdr hdr = { 2394fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2395fc01cea9SAndy Adamson }; 2396fc01cea9SAndy Adamson 2397fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2398fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2399fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2400fc01cea9SAndy Adamson encode_nops(&hdr); 2401fc01cea9SAndy Adamson return 0; 2402fc01cea9SAndy Adamson } 2403fc01cea9SAndy Adamson 2404fc01cea9SAndy Adamson /* 24052050f0ccSAndy Adamson * a GET_LEASE_TIME request 24062050f0ccSAndy Adamson */ 24072050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 24082050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 24092050f0ccSAndy Adamson { 24102050f0ccSAndy Adamson struct xdr_stream xdr; 24112050f0ccSAndy Adamson struct compound_hdr hdr = { 24122050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 24132050f0ccSAndy Adamson }; 24142050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24152050f0ccSAndy Adamson 24162050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24172050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24182050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 24192050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 24202050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 24212050f0ccSAndy Adamson encode_nops(&hdr); 24222050f0ccSAndy Adamson return 0; 24232050f0ccSAndy Adamson } 242499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 242599fe60d0SBenny Halevy 2426686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2427686841b3SBenny Halevy { 2428686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2429686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2430686841b3SBenny Halevy func, xdr->end - xdr->p); 2431686841b3SBenny Halevy } 2432686841b3SBenny Halevy 2433683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 24341da177e4SLinus Torvalds { 24358687b63aSAl Viro __be32 *p; 24361da177e4SLinus Torvalds 2437c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2438c0eae66eSBenny Halevy if (unlikely(!p)) 2439c0eae66eSBenny Halevy goto out_overflow; 2440cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2441c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2442c0eae66eSBenny Halevy if (unlikely(!p)) 2443c0eae66eSBenny Halevy goto out_overflow; 24441da177e4SLinus Torvalds *string = (char *)p; 24451da177e4SLinus Torvalds return 0; 2446c0eae66eSBenny Halevy out_overflow: 2447c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2448c0eae66eSBenny Halevy return -EIO; 24491da177e4SLinus Torvalds } 24501da177e4SLinus Torvalds 24511da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 24521da177e4SLinus Torvalds { 24538687b63aSAl Viro __be32 *p; 24541da177e4SLinus Torvalds 2455c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2456c0eae66eSBenny Halevy if (unlikely(!p)) 2457c0eae66eSBenny Halevy goto out_overflow; 24586f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2459cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 24601da177e4SLinus Torvalds 2461c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2462c0eae66eSBenny Halevy if (unlikely(!p)) 2463c0eae66eSBenny Halevy goto out_overflow; 24641da177e4SLinus Torvalds hdr->tag = (char *)p; 24651da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2466cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2467aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2468aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 24691da177e4SLinus Torvalds return 0; 2470c0eae66eSBenny Halevy out_overflow: 2471c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2472c0eae66eSBenny Halevy return -EIO; 24731da177e4SLinus Torvalds } 24741da177e4SLinus Torvalds 24751da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 24761da177e4SLinus Torvalds { 24778687b63aSAl Viro __be32 *p; 24781da177e4SLinus Torvalds uint32_t opnum; 24791da177e4SLinus Torvalds int32_t nfserr; 24801da177e4SLinus Torvalds 2481c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2482c0eae66eSBenny Halevy if (unlikely(!p)) 2483c0eae66eSBenny Halevy goto out_overflow; 24846f723f77SBenny Halevy opnum = be32_to_cpup(p++); 24851da177e4SLinus Torvalds if (opnum != expected) { 2486fe82a183SChuck Lever dprintk("nfs: Server returned operation" 24871da177e4SLinus Torvalds " %d but we issued a request for %d\n", 24881da177e4SLinus Torvalds opnum, expected); 24891da177e4SLinus Torvalds return -EIO; 24901da177e4SLinus Torvalds } 2491cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 24921da177e4SLinus Torvalds if (nfserr != NFS_OK) 2493856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 24941da177e4SLinus Torvalds return 0; 2495c0eae66eSBenny Halevy out_overflow: 2496c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2497c0eae66eSBenny Halevy return -EIO; 24981da177e4SLinus Torvalds } 24991da177e4SLinus Torvalds 25001da177e4SLinus Torvalds /* Dummy routine */ 2501adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 25021da177e4SLinus Torvalds { 25038687b63aSAl Viro __be32 *p; 2504683b57b4STrond Myklebust unsigned int strlen; 25051da177e4SLinus Torvalds char *str; 25061da177e4SLinus Torvalds 2507c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2508c0eae66eSBenny Halevy if (likely(p)) 25091da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2510c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2511c0eae66eSBenny Halevy return -EIO; 25121da177e4SLinus Torvalds } 25131da177e4SLinus Torvalds 25141da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 25151da177e4SLinus Torvalds { 25168687b63aSAl Viro uint32_t bmlen; 25178687b63aSAl Viro __be32 *p; 25181da177e4SLinus Torvalds 2519c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2520c0eae66eSBenny Halevy if (unlikely(!p)) 2521c0eae66eSBenny Halevy goto out_overflow; 2522cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 25231da177e4SLinus Torvalds 25241da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2525c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2526c0eae66eSBenny Halevy if (unlikely(!p)) 2527c0eae66eSBenny Halevy goto out_overflow; 25281da177e4SLinus Torvalds if (bmlen > 0) { 25296f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 25301da177e4SLinus Torvalds if (bmlen > 1) 2531cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 25321da177e4SLinus Torvalds } 25331da177e4SLinus Torvalds return 0; 2534c0eae66eSBenny Halevy out_overflow: 2535c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2536c0eae66eSBenny Halevy return -EIO; 25371da177e4SLinus Torvalds } 25381da177e4SLinus Torvalds 25398687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 25401da177e4SLinus Torvalds { 25418687b63aSAl Viro __be32 *p; 25421da177e4SLinus Torvalds 2543c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2544c0eae66eSBenny Halevy if (unlikely(!p)) 2545c0eae66eSBenny Halevy goto out_overflow; 2546cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 25471da177e4SLinus Torvalds *savep = xdr->p; 25481da177e4SLinus Torvalds return 0; 2549c0eae66eSBenny Halevy out_overflow: 2550c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2551c0eae66eSBenny Halevy return -EIO; 25521da177e4SLinus Torvalds } 25531da177e4SLinus Torvalds 25541da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 25551da177e4SLinus Torvalds { 25561da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 25571da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 25581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 25591da177e4SLinus Torvalds } else 25601da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 256144109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 25621da177e4SLinus Torvalds return 0; 25631da177e4SLinus Torvalds } 25641da177e4SLinus Torvalds 25651da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 25661da177e4SLinus Torvalds { 25678687b63aSAl Viro __be32 *p; 2568409924e4STrond Myklebust int ret = 0; 25691da177e4SLinus Torvalds 25701da177e4SLinus Torvalds *type = 0; 25711da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 25721da177e4SLinus Torvalds return -EIO; 25731da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2574c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2575c0eae66eSBenny Halevy if (unlikely(!p)) 2576c0eae66eSBenny Halevy goto out_overflow; 2577cccddf4fSBenny Halevy *type = be32_to_cpup(p); 25781da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 25793110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 25801da177e4SLinus Torvalds return -EIO; 25811da177e4SLinus Torvalds } 25821da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2583409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 25841da177e4SLinus Torvalds } 2585bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2586409924e4STrond Myklebust return ret; 2587c0eae66eSBenny Halevy out_overflow: 2588c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2589c0eae66eSBenny Halevy return -EIO; 25901da177e4SLinus Torvalds } 25911da177e4SLinus Torvalds 25921da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 25931da177e4SLinus Torvalds { 25948687b63aSAl Viro __be32 *p; 2595409924e4STrond Myklebust int ret = 0; 25961da177e4SLinus Torvalds 25971da177e4SLinus Torvalds *change = 0; 25981da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 25991da177e4SLinus Torvalds return -EIO; 26001da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2601c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2602c0eae66eSBenny Halevy if (unlikely(!p)) 2603c0eae66eSBenny Halevy goto out_overflow; 2604cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 26051da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2606409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 26071da177e4SLinus Torvalds } 26083110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 26091da177e4SLinus Torvalds (unsigned long long)*change); 2610409924e4STrond Myklebust return ret; 2611c0eae66eSBenny Halevy out_overflow: 2612c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2613c0eae66eSBenny Halevy return -EIO; 26141da177e4SLinus Torvalds } 26151da177e4SLinus Torvalds 26161da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 26171da177e4SLinus Torvalds { 26188687b63aSAl Viro __be32 *p; 2619409924e4STrond Myklebust int ret = 0; 26201da177e4SLinus Torvalds 26211da177e4SLinus Torvalds *size = 0; 26221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 26231da177e4SLinus Torvalds return -EIO; 26241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2625c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2626c0eae66eSBenny Halevy if (unlikely(!p)) 2627c0eae66eSBenny Halevy goto out_overflow; 2628cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 26291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2630409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 26311da177e4SLinus Torvalds } 26323110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2633409924e4STrond Myklebust return ret; 2634c0eae66eSBenny Halevy out_overflow: 2635c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2636c0eae66eSBenny Halevy return -EIO; 26371da177e4SLinus Torvalds } 26381da177e4SLinus Torvalds 26391da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26401da177e4SLinus Torvalds { 26418687b63aSAl Viro __be32 *p; 26421da177e4SLinus Torvalds 26431da177e4SLinus Torvalds *res = 0; 26441da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 26451da177e4SLinus Torvalds return -EIO; 26461da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2647c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2648c0eae66eSBenny Halevy if (unlikely(!p)) 2649c0eae66eSBenny Halevy goto out_overflow; 2650cccddf4fSBenny Halevy *res = be32_to_cpup(p); 26511da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 26521da177e4SLinus Torvalds } 26533110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 26541da177e4SLinus Torvalds return 0; 2655c0eae66eSBenny Halevy out_overflow: 2656c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2657c0eae66eSBenny Halevy return -EIO; 26581da177e4SLinus Torvalds } 26591da177e4SLinus Torvalds 26601da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26611da177e4SLinus Torvalds { 26628687b63aSAl Viro __be32 *p; 26631da177e4SLinus Torvalds 26641da177e4SLinus Torvalds *res = 0; 26651da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 26661da177e4SLinus Torvalds return -EIO; 26671da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2668c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2669c0eae66eSBenny Halevy if (unlikely(!p)) 2670c0eae66eSBenny Halevy goto out_overflow; 2671cccddf4fSBenny Halevy *res = be32_to_cpup(p); 26721da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 26731da177e4SLinus Torvalds } 26743110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 26751da177e4SLinus Torvalds return 0; 2676c0eae66eSBenny Halevy out_overflow: 2677c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2678c0eae66eSBenny Halevy return -EIO; 26791da177e4SLinus Torvalds } 26801da177e4SLinus Torvalds 26818b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 26821da177e4SLinus Torvalds { 26838687b63aSAl Viro __be32 *p; 2684409924e4STrond Myklebust int ret = 0; 26851da177e4SLinus Torvalds 26861da177e4SLinus Torvalds fsid->major = 0; 26871da177e4SLinus Torvalds fsid->minor = 0; 26881da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 26891da177e4SLinus Torvalds return -EIO; 26901da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2691c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2692c0eae66eSBenny Halevy if (unlikely(!p)) 2693c0eae66eSBenny Halevy goto out_overflow; 26943ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2695cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 26961da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2697409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 26981da177e4SLinus Torvalds } 26993110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 27001da177e4SLinus Torvalds (unsigned long long)fsid->major, 27011da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2702409924e4STrond Myklebust return ret; 2703c0eae66eSBenny Halevy out_overflow: 2704c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2705c0eae66eSBenny Halevy return -EIO; 27061da177e4SLinus Torvalds } 27071da177e4SLinus Torvalds 27081da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27091da177e4SLinus Torvalds { 27108687b63aSAl Viro __be32 *p; 27111da177e4SLinus Torvalds 27121da177e4SLinus Torvalds *res = 60; 27131da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 27141da177e4SLinus Torvalds return -EIO; 27151da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2716c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2717c0eae66eSBenny Halevy if (unlikely(!p)) 2718c0eae66eSBenny Halevy goto out_overflow; 2719cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27201da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 27211da177e4SLinus Torvalds } 27223110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 27231da177e4SLinus Torvalds return 0; 2724c0eae66eSBenny Halevy out_overflow: 2725c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2726c0eae66eSBenny Halevy return -EIO; 27271da177e4SLinus Torvalds } 27281da177e4SLinus Torvalds 27291da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27301da177e4SLinus Torvalds { 27318687b63aSAl Viro __be32 *p; 27321da177e4SLinus Torvalds 27331da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 27341da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 27351da177e4SLinus Torvalds return -EIO; 27361da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2737c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2738c0eae66eSBenny Halevy if (unlikely(!p)) 2739c0eae66eSBenny Halevy goto out_overflow; 2740cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27411da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 27421da177e4SLinus Torvalds } 27433110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 27441da177e4SLinus Torvalds return 0; 2745c0eae66eSBenny Halevy out_overflow: 2746c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2747c0eae66eSBenny Halevy return -EIO; 27481da177e4SLinus Torvalds } 27491da177e4SLinus Torvalds 27501da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 27511da177e4SLinus Torvalds { 27528687b63aSAl Viro __be32 *p; 2753409924e4STrond Myklebust int ret = 0; 27541da177e4SLinus Torvalds 27551da177e4SLinus Torvalds *fileid = 0; 27561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 27571da177e4SLinus Torvalds return -EIO; 27581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2759c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2760c0eae66eSBenny Halevy if (unlikely(!p)) 2761c0eae66eSBenny Halevy goto out_overflow; 2762cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 27631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2764409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 27651da177e4SLinus Torvalds } 27663110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2767409924e4STrond Myklebust return ret; 2768c0eae66eSBenny Halevy out_overflow: 2769c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2770c0eae66eSBenny Halevy return -EIO; 27711da177e4SLinus Torvalds } 27721da177e4SLinus Torvalds 277399baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 277499baf625SManoj Naik { 27758687b63aSAl Viro __be32 *p; 2776409924e4STrond Myklebust int ret = 0; 277799baf625SManoj Naik 277899baf625SManoj Naik *fileid = 0; 277999baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 278099baf625SManoj Naik return -EIO; 278199baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 2782c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2783c0eae66eSBenny Halevy if (unlikely(!p)) 2784c0eae66eSBenny Halevy goto out_overflow; 2785cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 278699baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2787409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 278899baf625SManoj Naik } 27893110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2790409924e4STrond Myklebust return ret; 2791c0eae66eSBenny Halevy out_overflow: 2792c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2793c0eae66eSBenny Halevy return -EIO; 279499baf625SManoj Naik } 279599baf625SManoj Naik 27961da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27971da177e4SLinus Torvalds { 27988687b63aSAl Viro __be32 *p; 27991da177e4SLinus Torvalds int status = 0; 28001da177e4SLinus Torvalds 28011da177e4SLinus Torvalds *res = 0; 28021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 28031da177e4SLinus Torvalds return -EIO; 28041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 2805c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2806c0eae66eSBenny Halevy if (unlikely(!p)) 2807c0eae66eSBenny Halevy goto out_overflow; 2808cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 28091da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 28101da177e4SLinus Torvalds } 28113110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 28121da177e4SLinus Torvalds return status; 2813c0eae66eSBenny Halevy out_overflow: 2814c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2815c0eae66eSBenny Halevy return -EIO; 28161da177e4SLinus Torvalds } 28171da177e4SLinus Torvalds 28181da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28191da177e4SLinus Torvalds { 28208687b63aSAl Viro __be32 *p; 28211da177e4SLinus Torvalds int status = 0; 28221da177e4SLinus Torvalds 28231da177e4SLinus Torvalds *res = 0; 28241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 28251da177e4SLinus Torvalds return -EIO; 28261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 2827c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2828c0eae66eSBenny Halevy if (unlikely(!p)) 2829c0eae66eSBenny Halevy goto out_overflow; 2830cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 28311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 28321da177e4SLinus Torvalds } 28333110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 28341da177e4SLinus Torvalds return status; 2835c0eae66eSBenny Halevy out_overflow: 2836c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2837c0eae66eSBenny Halevy return -EIO; 28381da177e4SLinus Torvalds } 28391da177e4SLinus Torvalds 28401da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28411da177e4SLinus Torvalds { 28428687b63aSAl Viro __be32 *p; 28431da177e4SLinus Torvalds int status = 0; 28441da177e4SLinus Torvalds 28451da177e4SLinus Torvalds *res = 0; 28461da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 28471da177e4SLinus Torvalds return -EIO; 28481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 2849c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2850c0eae66eSBenny Halevy if (unlikely(!p)) 2851c0eae66eSBenny Halevy goto out_overflow; 2852cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 28531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 28541da177e4SLinus Torvalds } 28553110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 28561da177e4SLinus Torvalds return status; 2857c0eae66eSBenny Halevy out_overflow: 2858c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2859c0eae66eSBenny Halevy return -EIO; 28601da177e4SLinus Torvalds } 28611da177e4SLinus Torvalds 28627aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 28637aaa0b3bSManoj Naik { 2864464ad6b1SChuck Lever u32 n; 28658687b63aSAl Viro __be32 *p; 28667aaa0b3bSManoj Naik int status = 0; 28677aaa0b3bSManoj Naik 2868c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2869c0eae66eSBenny Halevy if (unlikely(!p)) 2870c0eae66eSBenny Halevy goto out_overflow; 2871cccddf4fSBenny Halevy n = be32_to_cpup(p); 287233a43f28SAndy Adamson if (n == 0) 287333a43f28SAndy Adamson goto root_path; 28747aaa0b3bSManoj Naik dprintk("path "); 28757aaa0b3bSManoj Naik path->ncomponents = 0; 28767aaa0b3bSManoj Naik while (path->ncomponents < n) { 28777aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 28787aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 28797aaa0b3bSManoj Naik if (unlikely(status != 0)) 28807aaa0b3bSManoj Naik goto out_eio; 28817aaa0b3bSManoj Naik if (path->ncomponents != n) 28827aaa0b3bSManoj Naik dprintk("/"); 28837aaa0b3bSManoj Naik dprintk("%s", component->data); 28847aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 28857aaa0b3bSManoj Naik path->ncomponents++; 28867aaa0b3bSManoj Naik else { 28877aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 28887aaa0b3bSManoj Naik goto out_eio; 28897aaa0b3bSManoj Naik } 28907aaa0b3bSManoj Naik } 28917aaa0b3bSManoj Naik out: 28927aaa0b3bSManoj Naik dprintk("\n"); 28937aaa0b3bSManoj Naik return status; 289433a43f28SAndy Adamson root_path: 289533a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 289633a43f28SAndy Adamson path->ncomponents = 1; 289733a43f28SAndy Adamson path->components[0].len=0; 289833a43f28SAndy Adamson path->components[0].data=NULL; 289933a43f28SAndy Adamson dprintk("path /\n"); 290033a43f28SAndy Adamson goto out; 29017aaa0b3bSManoj Naik out_eio: 29027aaa0b3bSManoj Naik dprintk(" status %d", status); 29037aaa0b3bSManoj Naik status = -EIO; 29047aaa0b3bSManoj Naik goto out; 2905c0eae66eSBenny Halevy out_overflow: 2906c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2907c0eae66eSBenny Halevy return -EIO; 29087aaa0b3bSManoj Naik } 29097aaa0b3bSManoj Naik 29107aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2911683b57b4STrond Myklebust { 2912683b57b4STrond Myklebust int n; 29138687b63aSAl Viro __be32 *p; 2914683b57b4STrond Myklebust int status = -EIO; 2915683b57b4STrond Myklebust 2916683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2917683b57b4STrond Myklebust goto out; 2918683b57b4STrond Myklebust status = 0; 2919683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2920683b57b4STrond Myklebust goto out; 29213110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 29227aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2923683b57b4STrond Myklebust if (unlikely(status != 0)) 2924683b57b4STrond Myklebust goto out; 2925c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2926c0eae66eSBenny Halevy if (unlikely(!p)) 2927c0eae66eSBenny Halevy goto out_overflow; 2928cccddf4fSBenny Halevy n = be32_to_cpup(p); 2929683b57b4STrond Myklebust if (n <= 0) 2930683b57b4STrond Myklebust goto out_eio; 2931683b57b4STrond Myklebust res->nlocations = 0; 2932683b57b4STrond Myklebust while (res->nlocations < n) { 2933464ad6b1SChuck Lever u32 m; 29347aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2935683b57b4STrond Myklebust 2936c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2937c0eae66eSBenny Halevy if (unlikely(!p)) 2938c0eae66eSBenny Halevy goto out_overflow; 2939cccddf4fSBenny Halevy m = be32_to_cpup(p); 29407aaa0b3bSManoj Naik 29417aaa0b3bSManoj Naik loc->nservers = 0; 29423110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 29437aaa0b3bSManoj Naik while (loc->nservers < m) { 29447aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 29457aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2946683b57b4STrond Myklebust if (unlikely(status != 0)) 2947683b57b4STrond Myklebust goto out_eio; 29487aaa0b3bSManoj Naik dprintk("%s ", server->data); 29497aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 29507aaa0b3bSManoj Naik loc->nservers++; 29517aaa0b3bSManoj Naik else { 2952464ad6b1SChuck Lever unsigned int i; 2953464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2954464ad6b1SChuck Lever "returned for location %u\n", 29553110ff80SHarvey Harrison __func__, 2956464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2957464ad6b1SChuck Lever m, res->nlocations); 29587aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 29592e42c3e2STrond Myklebust unsigned int len; 29607aaa0b3bSManoj Naik char *data; 29617aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2962683b57b4STrond Myklebust if (unlikely(status != 0)) 2963683b57b4STrond Myklebust goto out_eio; 29647aaa0b3bSManoj Naik } 29657aaa0b3bSManoj Naik } 29667aaa0b3bSManoj Naik } 29677aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 29687aaa0b3bSManoj Naik if (unlikely(status != 0)) 29697aaa0b3bSManoj Naik goto out_eio; 29707aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2971683b57b4STrond Myklebust res->nlocations++; 2972683b57b4STrond Myklebust } 2973409924e4STrond Myklebust if (res->nlocations != 0) 2974409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 2975683b57b4STrond Myklebust out: 29763110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2977683b57b4STrond Myklebust return status; 2978c0eae66eSBenny Halevy out_overflow: 2979c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2980683b57b4STrond Myklebust out_eio: 2981683b57b4STrond Myklebust status = -EIO; 2982683b57b4STrond Myklebust goto out; 2983683b57b4STrond Myklebust } 2984683b57b4STrond Myklebust 29851da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29861da177e4SLinus Torvalds { 29878687b63aSAl Viro __be32 *p; 29881da177e4SLinus Torvalds int status = 0; 29891da177e4SLinus Torvalds 29901da177e4SLinus Torvalds *res = 0; 29911da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 29921da177e4SLinus Torvalds return -EIO; 29931da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 2994c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2995c0eae66eSBenny Halevy if (unlikely(!p)) 2996c0eae66eSBenny Halevy goto out_overflow; 2997cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 29981da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 29991da177e4SLinus Torvalds } 30003110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 30011da177e4SLinus Torvalds return status; 3002c0eae66eSBenny Halevy out_overflow: 3003c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3004c0eae66eSBenny Halevy return -EIO; 30051da177e4SLinus Torvalds } 30061da177e4SLinus Torvalds 30071da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 30081da177e4SLinus Torvalds { 30098687b63aSAl Viro __be32 *p; 30101da177e4SLinus Torvalds int status = 0; 30111da177e4SLinus Torvalds 30121da177e4SLinus Torvalds *maxlink = 1; 30131da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 30141da177e4SLinus Torvalds return -EIO; 30151da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3016c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3017c0eae66eSBenny Halevy if (unlikely(!p)) 3018c0eae66eSBenny Halevy goto out_overflow; 3019cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 30201da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 30211da177e4SLinus Torvalds } 30223110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 30231da177e4SLinus Torvalds return status; 3024c0eae66eSBenny Halevy out_overflow: 3025c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3026c0eae66eSBenny Halevy return -EIO; 30271da177e4SLinus Torvalds } 30281da177e4SLinus Torvalds 30291da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 30301da177e4SLinus Torvalds { 30318687b63aSAl Viro __be32 *p; 30321da177e4SLinus Torvalds int status = 0; 30331da177e4SLinus Torvalds 30341da177e4SLinus Torvalds *maxname = 1024; 30351da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 30361da177e4SLinus Torvalds return -EIO; 30371da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3038c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3039c0eae66eSBenny Halevy if (unlikely(!p)) 3040c0eae66eSBenny Halevy goto out_overflow; 3041cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 30421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 30431da177e4SLinus Torvalds } 30443110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 30451da177e4SLinus Torvalds return status; 3046c0eae66eSBenny Halevy out_overflow: 3047c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3048c0eae66eSBenny Halevy return -EIO; 30491da177e4SLinus Torvalds } 30501da177e4SLinus Torvalds 30511da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 30521da177e4SLinus Torvalds { 30538687b63aSAl Viro __be32 *p; 30541da177e4SLinus Torvalds int status = 0; 30551da177e4SLinus Torvalds 30561da177e4SLinus Torvalds *res = 1024; 30571da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 30581da177e4SLinus Torvalds return -EIO; 30591da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 30601da177e4SLinus Torvalds uint64_t maxread; 3061c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3062c0eae66eSBenny Halevy if (unlikely(!p)) 3063c0eae66eSBenny Halevy goto out_overflow; 3064cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 30651da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 30661da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 30671da177e4SLinus Torvalds *res = (uint32_t)maxread; 30681da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 30691da177e4SLinus Torvalds } 30703110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 30711da177e4SLinus Torvalds return status; 3072c0eae66eSBenny Halevy out_overflow: 3073c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3074c0eae66eSBenny Halevy return -EIO; 30751da177e4SLinus Torvalds } 30761da177e4SLinus Torvalds 30771da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 30781da177e4SLinus Torvalds { 30798687b63aSAl Viro __be32 *p; 30801da177e4SLinus Torvalds int status = 0; 30811da177e4SLinus Torvalds 30821da177e4SLinus Torvalds *res = 1024; 30831da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 30841da177e4SLinus Torvalds return -EIO; 30851da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 30861da177e4SLinus Torvalds uint64_t maxwrite; 3087c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3088c0eae66eSBenny Halevy if (unlikely(!p)) 3089c0eae66eSBenny Halevy goto out_overflow; 3090cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 30911da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 30921da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 30931da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 30941da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 30951da177e4SLinus Torvalds } 30963110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 30971da177e4SLinus Torvalds return status; 3098c0eae66eSBenny Halevy out_overflow: 3099c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3100c0eae66eSBenny Halevy return -EIO; 31011da177e4SLinus Torvalds } 31021da177e4SLinus Torvalds 3103bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 31041da177e4SLinus Torvalds { 3105bca79478STrond Myklebust uint32_t tmp; 31068687b63aSAl Viro __be32 *p; 3107409924e4STrond Myklebust int ret = 0; 31081da177e4SLinus Torvalds 31091da177e4SLinus Torvalds *mode = 0; 31101da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 31111da177e4SLinus Torvalds return -EIO; 31121da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3113c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3114c0eae66eSBenny Halevy if (unlikely(!p)) 3115c0eae66eSBenny Halevy goto out_overflow; 3116cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3117bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 31181da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3119409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 31201da177e4SLinus Torvalds } 31213110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3122409924e4STrond Myklebust return ret; 3123c0eae66eSBenny Halevy out_overflow: 3124c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3125c0eae66eSBenny Halevy return -EIO; 31261da177e4SLinus Torvalds } 31271da177e4SLinus Torvalds 31281da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 31291da177e4SLinus Torvalds { 31308687b63aSAl Viro __be32 *p; 3131409924e4STrond Myklebust int ret = 0; 31321da177e4SLinus Torvalds 31331da177e4SLinus Torvalds *nlink = 1; 31341da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 31351da177e4SLinus Torvalds return -EIO; 31361da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3137c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3138c0eae66eSBenny Halevy if (unlikely(!p)) 3139c0eae66eSBenny Halevy goto out_overflow; 3140cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 31411da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3142409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 31431da177e4SLinus Torvalds } 31443110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3145409924e4STrond Myklebust return ret; 3146c0eae66eSBenny Halevy out_overflow: 3147c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3148c0eae66eSBenny Halevy return -EIO; 31491da177e4SLinus Torvalds } 31501da177e4SLinus Torvalds 31512e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 31521da177e4SLinus Torvalds { 31538687b63aSAl Viro uint32_t len; 31548687b63aSAl Viro __be32 *p; 3155409924e4STrond Myklebust int ret = 0; 31561da177e4SLinus Torvalds 31571da177e4SLinus Torvalds *uid = -2; 31581da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 31591da177e4SLinus Torvalds return -EIO; 31601da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3161c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3162c0eae66eSBenny Halevy if (unlikely(!p)) 3163c0eae66eSBenny Halevy goto out_overflow; 3164cccddf4fSBenny Halevy len = be32_to_cpup(p); 3165c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3166c0eae66eSBenny Halevy if (unlikely(!p)) 3167c0eae66eSBenny Halevy goto out_overflow; 31681da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3169409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3170409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3171409924e4STrond Myklebust else 31721da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 31733110ff80SHarvey Harrison __func__); 31741da177e4SLinus Torvalds } else 3175fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 31763110ff80SHarvey Harrison __func__, len); 31771da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 31781da177e4SLinus Torvalds } 31793110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3180409924e4STrond Myklebust return ret; 3181c0eae66eSBenny Halevy out_overflow: 3182c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3183c0eae66eSBenny Halevy return -EIO; 31841da177e4SLinus Torvalds } 31851da177e4SLinus Torvalds 31862e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 31871da177e4SLinus Torvalds { 31888687b63aSAl Viro uint32_t len; 31898687b63aSAl Viro __be32 *p; 3190409924e4STrond Myklebust int ret = 0; 31911da177e4SLinus Torvalds 31921da177e4SLinus Torvalds *gid = -2; 31931da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 31941da177e4SLinus Torvalds return -EIO; 31951da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3196c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3197c0eae66eSBenny Halevy if (unlikely(!p)) 3198c0eae66eSBenny Halevy goto out_overflow; 3199cccddf4fSBenny Halevy len = be32_to_cpup(p); 3200c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3201c0eae66eSBenny Halevy if (unlikely(!p)) 3202c0eae66eSBenny Halevy goto out_overflow; 32031da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3204409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3205409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3206409924e4STrond Myklebust else 32071da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 32083110ff80SHarvey Harrison __func__); 32091da177e4SLinus Torvalds } else 3210fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 32113110ff80SHarvey Harrison __func__, len); 32121da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 32131da177e4SLinus Torvalds } 32143110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3215409924e4STrond Myklebust return ret; 3216c0eae66eSBenny Halevy out_overflow: 3217c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3218c0eae66eSBenny Halevy return -EIO; 32191da177e4SLinus Torvalds } 32201da177e4SLinus Torvalds 32211da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 32221da177e4SLinus Torvalds { 32238687b63aSAl Viro uint32_t major = 0, minor = 0; 32248687b63aSAl Viro __be32 *p; 3225409924e4STrond Myklebust int ret = 0; 32261da177e4SLinus Torvalds 32271da177e4SLinus Torvalds *rdev = MKDEV(0,0); 32281da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 32291da177e4SLinus Torvalds return -EIO; 32301da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 32311da177e4SLinus Torvalds dev_t tmp; 32321da177e4SLinus Torvalds 3233c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3234c0eae66eSBenny Halevy if (unlikely(!p)) 3235c0eae66eSBenny Halevy goto out_overflow; 32366f723f77SBenny Halevy major = be32_to_cpup(p++); 3237cccddf4fSBenny Halevy minor = be32_to_cpup(p); 32381da177e4SLinus Torvalds tmp = MKDEV(major, minor); 32391da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 32401da177e4SLinus Torvalds *rdev = tmp; 32411da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3242409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 32431da177e4SLinus Torvalds } 32443110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3245409924e4STrond Myklebust return ret; 3246c0eae66eSBenny Halevy out_overflow: 3247c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3248c0eae66eSBenny Halevy return -EIO; 32491da177e4SLinus Torvalds } 32501da177e4SLinus Torvalds 32511da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 32521da177e4SLinus Torvalds { 32538687b63aSAl Viro __be32 *p; 32541da177e4SLinus Torvalds int status = 0; 32551da177e4SLinus Torvalds 32561da177e4SLinus Torvalds *res = 0; 32571da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 32581da177e4SLinus Torvalds return -EIO; 32591da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3260c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3261c0eae66eSBenny Halevy if (unlikely(!p)) 3262c0eae66eSBenny Halevy goto out_overflow; 3263cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 32641da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 32651da177e4SLinus Torvalds } 32663110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 32671da177e4SLinus Torvalds return status; 3268c0eae66eSBenny Halevy out_overflow: 3269c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3270c0eae66eSBenny Halevy return -EIO; 32711da177e4SLinus Torvalds } 32721da177e4SLinus Torvalds 32731da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 32741da177e4SLinus Torvalds { 32758687b63aSAl Viro __be32 *p; 32761da177e4SLinus Torvalds int status = 0; 32771da177e4SLinus Torvalds 32781da177e4SLinus Torvalds *res = 0; 32791da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 32801da177e4SLinus Torvalds return -EIO; 32811da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3282c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3283c0eae66eSBenny Halevy if (unlikely(!p)) 3284c0eae66eSBenny Halevy goto out_overflow; 3285cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 32861da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 32871da177e4SLinus Torvalds } 32883110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 32891da177e4SLinus Torvalds return status; 3290c0eae66eSBenny Halevy out_overflow: 3291c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3292c0eae66eSBenny Halevy return -EIO; 32931da177e4SLinus Torvalds } 32941da177e4SLinus Torvalds 32951da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 32961da177e4SLinus Torvalds { 32978687b63aSAl Viro __be32 *p; 32981da177e4SLinus Torvalds int status = 0; 32991da177e4SLinus Torvalds 33001da177e4SLinus Torvalds *res = 0; 33011da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 33021da177e4SLinus Torvalds return -EIO; 33031da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3304c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3305c0eae66eSBenny Halevy if (unlikely(!p)) 3306c0eae66eSBenny Halevy goto out_overflow; 3307cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 33081da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 33091da177e4SLinus Torvalds } 33103110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 33111da177e4SLinus Torvalds return status; 3312c0eae66eSBenny Halevy out_overflow: 3313c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3314c0eae66eSBenny Halevy return -EIO; 33151da177e4SLinus Torvalds } 33161da177e4SLinus Torvalds 33171da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 33181da177e4SLinus Torvalds { 33198687b63aSAl Viro __be32 *p; 3320409924e4STrond Myklebust int ret = 0; 33211da177e4SLinus Torvalds 33221da177e4SLinus Torvalds *used = 0; 33231da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 33241da177e4SLinus Torvalds return -EIO; 33251da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3326c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3327c0eae66eSBenny Halevy if (unlikely(!p)) 3328c0eae66eSBenny Halevy goto out_overflow; 3329cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 33301da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3331409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 33321da177e4SLinus Torvalds } 33333110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 33341da177e4SLinus Torvalds (unsigned long long)*used); 3335409924e4STrond Myklebust return ret; 3336c0eae66eSBenny Halevy out_overflow: 3337c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3338c0eae66eSBenny Halevy return -EIO; 33391da177e4SLinus Torvalds } 33401da177e4SLinus Torvalds 33411da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 33421da177e4SLinus Torvalds { 33438687b63aSAl Viro __be32 *p; 33441da177e4SLinus Torvalds uint64_t sec; 33451da177e4SLinus Torvalds uint32_t nsec; 33461da177e4SLinus Torvalds 3347c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3348c0eae66eSBenny Halevy if (unlikely(!p)) 3349c0eae66eSBenny Halevy goto out_overflow; 33503ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3351cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 33521da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 33531da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 33541da177e4SLinus Torvalds return 0; 3355c0eae66eSBenny Halevy out_overflow: 3356c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3357c0eae66eSBenny Halevy return -EIO; 33581da177e4SLinus Torvalds } 33591da177e4SLinus Torvalds 33601da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 33611da177e4SLinus Torvalds { 33621da177e4SLinus Torvalds int status = 0; 33631da177e4SLinus Torvalds 33641da177e4SLinus Torvalds time->tv_sec = 0; 33651da177e4SLinus Torvalds time->tv_nsec = 0; 33661da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 33671da177e4SLinus Torvalds return -EIO; 33681da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 33691da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3370409924e4STrond Myklebust if (status == 0) 3371409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 33721da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 33731da177e4SLinus Torvalds } 33743110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 33751da177e4SLinus Torvalds return status; 33761da177e4SLinus Torvalds } 33771da177e4SLinus Torvalds 33781da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 33791da177e4SLinus Torvalds { 33801da177e4SLinus Torvalds int status = 0; 33811da177e4SLinus Torvalds 33821da177e4SLinus Torvalds time->tv_sec = 0; 33831da177e4SLinus Torvalds time->tv_nsec = 0; 33841da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 33851da177e4SLinus Torvalds return -EIO; 33861da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 33871da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3388409924e4STrond Myklebust if (status == 0) 3389409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 33901da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 33911da177e4SLinus Torvalds } 33923110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 33931da177e4SLinus Torvalds return status; 33941da177e4SLinus Torvalds } 33951da177e4SLinus Torvalds 33961da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 33971da177e4SLinus Torvalds { 33981da177e4SLinus Torvalds int status = 0; 33991da177e4SLinus Torvalds 34001da177e4SLinus Torvalds time->tv_sec = 0; 34011da177e4SLinus Torvalds time->tv_nsec = 0; 34021da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 34031da177e4SLinus Torvalds return -EIO; 34041da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 34051da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3406409924e4STrond Myklebust if (status == 0) 3407409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 34081da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 34091da177e4SLinus Torvalds } 34103110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 34111da177e4SLinus Torvalds return status; 34121da177e4SLinus Torvalds } 34131da177e4SLinus Torvalds 34148687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 34151da177e4SLinus Torvalds { 34161da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 34171da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 34181da177e4SLinus Torvalds 34191da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3420fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3421fe82a183SChuck Lever "%u %c %u\n", 34223110ff80SHarvey Harrison __func__, 34231da177e4SLinus Torvalds attrwords << 2, 34241da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 34251da177e4SLinus Torvalds nwords << 2); 34261da177e4SLinus Torvalds return -EIO; 34271da177e4SLinus Torvalds } 34281da177e4SLinus Torvalds return 0; 34291da177e4SLinus Torvalds } 34301da177e4SLinus Torvalds 34311da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 34321da177e4SLinus Torvalds { 34338687b63aSAl Viro __be32 *p; 34341da177e4SLinus Torvalds 3435c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3436c0eae66eSBenny Halevy if (unlikely(!p)) 3437c0eae66eSBenny Halevy goto out_overflow; 34386f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 34393ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3440cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 34411da177e4SLinus Torvalds return 0; 3442c0eae66eSBenny Halevy out_overflow: 3443c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3444c0eae66eSBenny Halevy return -EIO; 34451da177e4SLinus Torvalds } 34461da177e4SLinus Torvalds 34471da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 34481da177e4SLinus Torvalds { 34498687b63aSAl Viro __be32 *p; 34501da177e4SLinus Torvalds uint32_t supp, acc; 34511da177e4SLinus Torvalds int status; 34521da177e4SLinus Torvalds 34531da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 34541da177e4SLinus Torvalds if (status) 34551da177e4SLinus Torvalds return status; 3456c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3457c0eae66eSBenny Halevy if (unlikely(!p)) 3458c0eae66eSBenny Halevy goto out_overflow; 34596f723f77SBenny Halevy supp = be32_to_cpup(p++); 3460cccddf4fSBenny Halevy acc = be32_to_cpup(p); 34611da177e4SLinus Torvalds access->supported = supp; 34621da177e4SLinus Torvalds access->access = acc; 34631da177e4SLinus Torvalds return 0; 3464c0eae66eSBenny Halevy out_overflow: 3465c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3466c0eae66eSBenny Halevy return -EIO; 34671da177e4SLinus Torvalds } 34681da177e4SLinus Torvalds 346907d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 34701da177e4SLinus Torvalds { 34718687b63aSAl Viro __be32 *p; 347207d30434SBenny Halevy 347307d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 347407d30434SBenny Halevy if (likely(p)) { 347507d30434SBenny Halevy memcpy(buf, p, len); 347607d30434SBenny Halevy return 0; 347707d30434SBenny Halevy } 347807d30434SBenny Halevy print_overflow_msg(__func__, xdr); 347907d30434SBenny Halevy return -EIO; 348007d30434SBenny Halevy } 348107d30434SBenny Halevy 348207d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 348307d30434SBenny Halevy { 348407d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 348507d30434SBenny Halevy } 348607d30434SBenny Halevy 348707d30434SBenny Halevy static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 348807d30434SBenny Halevy { 34891da177e4SLinus Torvalds int status; 34901da177e4SLinus Torvalds 34911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3492c1d51931STrond Myklebust if (status != -EIO) 3493c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 349407d30434SBenny Halevy if (!status) 349507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 34961da177e4SLinus Torvalds return status; 34971da177e4SLinus Torvalds } 34981da177e4SLinus Torvalds 3499db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3500db942bbdSBenny Halevy { 3501db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 3502db942bbdSBenny Halevy } 3503db942bbdSBenny Halevy 35041da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 35051da177e4SLinus Torvalds { 35061da177e4SLinus Torvalds int status; 35071da177e4SLinus Torvalds 35081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3509db942bbdSBenny Halevy if (!status) 3510db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 35111da177e4SLinus Torvalds return status; 35121da177e4SLinus Torvalds } 35131da177e4SLinus Torvalds 35141da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35151da177e4SLinus Torvalds { 35168687b63aSAl Viro __be32 *p; 35171da177e4SLinus Torvalds uint32_t bmlen; 35181da177e4SLinus Torvalds int status; 35191da177e4SLinus Torvalds 35201da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 35211da177e4SLinus Torvalds if (status) 35221da177e4SLinus Torvalds return status; 35231da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 35241da177e4SLinus Torvalds return status; 3525c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3526c0eae66eSBenny Halevy if (unlikely(!p)) 3527c0eae66eSBenny Halevy goto out_overflow; 3528cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3529c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3530c0eae66eSBenny Halevy if (likely(p)) 35311da177e4SLinus Torvalds return 0; 3532c0eae66eSBenny Halevy out_overflow: 3533c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3534c0eae66eSBenny Halevy return -EIO; 35351da177e4SLinus Torvalds } 35361da177e4SLinus Torvalds 35371da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 35381da177e4SLinus Torvalds { 35398687b63aSAl Viro __be32 *savep; 35406c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 35411da177e4SLinus Torvalds int status; 35421da177e4SLinus Torvalds 35431da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 35441da177e4SLinus Torvalds goto xdr_error; 35451da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 35461da177e4SLinus Torvalds goto xdr_error; 35471da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 35481da177e4SLinus Torvalds goto xdr_error; 35491da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 35501da177e4SLinus Torvalds goto xdr_error; 35511da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 35521da177e4SLinus Torvalds goto xdr_error; 35531da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 35541da177e4SLinus Torvalds goto xdr_error; 35551da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 35561da177e4SLinus Torvalds goto xdr_error; 35571da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 35581da177e4SLinus Torvalds xdr_error: 35593110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 35601da177e4SLinus Torvalds return status; 35611da177e4SLinus Torvalds } 35621da177e4SLinus Torvalds 35631da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 35641da177e4SLinus Torvalds { 35658687b63aSAl Viro __be32 *savep; 35666c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 35671da177e4SLinus Torvalds int status; 35681da177e4SLinus Torvalds 35691da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 35701da177e4SLinus Torvalds goto xdr_error; 35711da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 35721da177e4SLinus Torvalds goto xdr_error; 35731da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 35741da177e4SLinus Torvalds goto xdr_error; 35751da177e4SLinus Torvalds 35761da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 35771da177e4SLinus Torvalds goto xdr_error; 35781da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 35791da177e4SLinus Torvalds goto xdr_error; 35801da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 35811da177e4SLinus Torvalds goto xdr_error; 35821da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 35831da177e4SLinus Torvalds goto xdr_error; 35841da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 35851da177e4SLinus Torvalds goto xdr_error; 35861da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 35871da177e4SLinus Torvalds goto xdr_error; 35881da177e4SLinus Torvalds 35891da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 35901da177e4SLinus Torvalds xdr_error: 35913110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 35921da177e4SLinus Torvalds return status; 35931da177e4SLinus Torvalds } 35941da177e4SLinus Torvalds 35951da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 35961da177e4SLinus Torvalds { 35978687b63aSAl Viro __be32 *savep; 35986c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 35991da177e4SLinus Torvalds int status; 36001da177e4SLinus Torvalds 36011da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 36021da177e4SLinus Torvalds goto xdr_error; 36031da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 36041da177e4SLinus Torvalds goto xdr_error; 36051da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 36061da177e4SLinus Torvalds goto xdr_error; 36071da177e4SLinus Torvalds 36081da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 36091da177e4SLinus Torvalds goto xdr_error; 36101da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 36111da177e4SLinus Torvalds goto xdr_error; 36121da177e4SLinus Torvalds 36131da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36141da177e4SLinus Torvalds xdr_error: 36153110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 36161da177e4SLinus Torvalds return status; 36171da177e4SLinus Torvalds } 36181da177e4SLinus Torvalds 36191da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 36201da177e4SLinus Torvalds { 36218687b63aSAl Viro __be32 *savep; 36221da177e4SLinus Torvalds uint32_t attrlen, 36231da177e4SLinus Torvalds bitmap[2] = {0}, 36241da177e4SLinus Torvalds type; 3625bca79478STrond Myklebust int status; 3626bca79478STrond Myklebust umode_t fmode = 0; 362799baf625SManoj Naik uint64_t fileid; 36281da177e4SLinus Torvalds 3629f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3630f26c7a78STrond Myklebust if (status < 0) 36311da177e4SLinus Torvalds goto xdr_error; 36321da177e4SLinus Torvalds 3633f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3634f26c7a78STrond Myklebust if (status < 0) 3635f26c7a78STrond Myklebust goto xdr_error; 3636f26c7a78STrond Myklebust 3637f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3638f26c7a78STrond Myklebust if (status < 0) 36391da177e4SLinus Torvalds goto xdr_error; 36401da177e4SLinus Torvalds 36411da177e4SLinus Torvalds 3642f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3643f26c7a78STrond Myklebust if (status < 0) 36441da177e4SLinus Torvalds goto xdr_error; 3645409924e4STrond Myklebust fattr->mode = 0; 3646409924e4STrond Myklebust if (status != 0) { 3647409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3648409924e4STrond Myklebust fattr->valid |= status; 3649409924e4STrond Myklebust } 36501da177e4SLinus Torvalds 3651f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3652f26c7a78STrond Myklebust if (status < 0) 36531da177e4SLinus Torvalds goto xdr_error; 3654409924e4STrond Myklebust fattr->valid |= status; 3655f26c7a78STrond Myklebust 3656f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3657f26c7a78STrond Myklebust if (status < 0) 36581da177e4SLinus Torvalds goto xdr_error; 3659409924e4STrond Myklebust fattr->valid |= status; 3660f26c7a78STrond Myklebust 3661f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3662f26c7a78STrond Myklebust if (status < 0) 36631da177e4SLinus Torvalds goto xdr_error; 3664409924e4STrond Myklebust fattr->valid |= status; 3665f26c7a78STrond Myklebust 3666f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3667f26c7a78STrond Myklebust if (status < 0) 36681da177e4SLinus Torvalds goto xdr_error; 3669409924e4STrond Myklebust fattr->valid |= status; 3670f26c7a78STrond Myklebust 3671f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 36727aaa0b3bSManoj Naik struct nfs4_fs_locations, 3673f26c7a78STrond Myklebust fattr)); 3674f26c7a78STrond Myklebust if (status < 0) 3675683b57b4STrond Myklebust goto xdr_error; 3676409924e4STrond Myklebust fattr->valid |= status; 3677f26c7a78STrond Myklebust 3678f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3679f26c7a78STrond Myklebust if (status < 0) 36801da177e4SLinus Torvalds goto xdr_error; 3681409924e4STrond Myklebust if (status != 0) { 36821da177e4SLinus Torvalds fattr->mode |= fmode; 3683409924e4STrond Myklebust fattr->valid |= status; 3684409924e4STrond Myklebust } 3685f26c7a78STrond Myklebust 3686f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3687f26c7a78STrond Myklebust if (status < 0) 36881da177e4SLinus Torvalds goto xdr_error; 3689409924e4STrond Myklebust fattr->valid |= status; 3690f26c7a78STrond Myklebust 3691f26c7a78STrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); 3692f26c7a78STrond Myklebust if (status < 0) 36931da177e4SLinus Torvalds goto xdr_error; 3694409924e4STrond Myklebust fattr->valid |= status; 3695f26c7a78STrond Myklebust 3696f26c7a78STrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); 3697f26c7a78STrond Myklebust if (status < 0) 36981da177e4SLinus Torvalds goto xdr_error; 3699409924e4STrond Myklebust fattr->valid |= status; 3700f26c7a78STrond Myklebust 3701f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3702f26c7a78STrond Myklebust if (status < 0) 37031da177e4SLinus Torvalds goto xdr_error; 3704409924e4STrond Myklebust fattr->valid |= status; 3705f26c7a78STrond Myklebust 3706f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3707f26c7a78STrond Myklebust if (status < 0) 37081da177e4SLinus Torvalds goto xdr_error; 3709409924e4STrond Myklebust fattr->valid |= status; 3710f26c7a78STrond Myklebust 3711f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3712f26c7a78STrond Myklebust if (status < 0) 37131da177e4SLinus Torvalds goto xdr_error; 3714409924e4STrond Myklebust fattr->valid |= status; 3715f26c7a78STrond Myklebust 3716f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3717f26c7a78STrond Myklebust if (status < 0) 37181da177e4SLinus Torvalds goto xdr_error; 3719409924e4STrond Myklebust fattr->valid |= status; 3720f26c7a78STrond Myklebust 3721f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3722f26c7a78STrond Myklebust if (status < 0) 37231da177e4SLinus Torvalds goto xdr_error; 3724409924e4STrond Myklebust fattr->valid |= status; 3725f26c7a78STrond Myklebust 3726f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3727f26c7a78STrond Myklebust if (status < 0) 372899baf625SManoj Naik goto xdr_error; 3729409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 373099baf625SManoj Naik fattr->fileid = fileid; 3731409924e4STrond Myklebust fattr->valid |= status; 3732409924e4STrond Myklebust } 3733f26c7a78STrond Myklebust 3734f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 37351da177e4SLinus Torvalds xdr_error: 37363110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 37371da177e4SLinus Torvalds return status; 37381da177e4SLinus Torvalds } 37391da177e4SLinus Torvalds 37401da177e4SLinus Torvalds 37411da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 37421da177e4SLinus Torvalds { 37438687b63aSAl Viro __be32 *savep; 37441da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 37451da177e4SLinus Torvalds int status; 37461da177e4SLinus Torvalds 37471da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 37481da177e4SLinus Torvalds goto xdr_error; 37491da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 37501da177e4SLinus Torvalds goto xdr_error; 37511da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 37521da177e4SLinus Torvalds goto xdr_error; 37531da177e4SLinus Torvalds 37541da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 37551da177e4SLinus Torvalds 37561da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 37571da177e4SLinus Torvalds goto xdr_error; 37581da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 37591da177e4SLinus Torvalds goto xdr_error; 37601da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 37611da177e4SLinus Torvalds goto xdr_error; 37621da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 37631da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 37641da177e4SLinus Torvalds goto xdr_error; 37651da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 37661da177e4SLinus Torvalds 37671da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 37681da177e4SLinus Torvalds xdr_error: 37693110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 37701da177e4SLinus Torvalds return status; 37711da177e4SLinus Torvalds } 37721da177e4SLinus Torvalds 37731da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 37741da177e4SLinus Torvalds { 37758687b63aSAl Viro __be32 *p; 37761da177e4SLinus Torvalds uint32_t len; 37771da177e4SLinus Torvalds int status; 37781da177e4SLinus Torvalds 37799936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 37809936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 37819936781dSTrond Myklebust 37821da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 37831da177e4SLinus Torvalds if (status) 37841da177e4SLinus Torvalds return status; 37851da177e4SLinus Torvalds 3786c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3787c0eae66eSBenny Halevy if (unlikely(!p)) 3788c0eae66eSBenny Halevy goto out_overflow; 3789cccddf4fSBenny Halevy len = be32_to_cpup(p); 37901da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 37911da177e4SLinus Torvalds return -EIO; 37921da177e4SLinus Torvalds fh->size = len; 3793c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3794c0eae66eSBenny Halevy if (unlikely(!p)) 3795c0eae66eSBenny Halevy goto out_overflow; 379699398d06SBenny Halevy memcpy(fh->data, p, len); 37971da177e4SLinus Torvalds return 0; 3798c0eae66eSBenny Halevy out_overflow: 3799c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3800c0eae66eSBenny Halevy return -EIO; 38011da177e4SLinus Torvalds } 38021da177e4SLinus Torvalds 38031da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 38041da177e4SLinus Torvalds { 38051da177e4SLinus Torvalds int status; 38061da177e4SLinus Torvalds 38071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 38081da177e4SLinus Torvalds if (status) 38091da177e4SLinus Torvalds return status; 38101da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 38111da177e4SLinus Torvalds } 38121da177e4SLinus Torvalds 38131da177e4SLinus Torvalds /* 38141da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 38151da177e4SLinus Torvalds */ 3816911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 38171da177e4SLinus Torvalds { 3818911d1aafSTrond Myklebust uint64_t offset, length, clientid; 38198687b63aSAl Viro __be32 *p; 3820911d1aafSTrond Myklebust uint32_t namelen, type; 38211da177e4SLinus Torvalds 3822c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 32); 3823c0eae66eSBenny Halevy if (unlikely(!p)) 3824c0eae66eSBenny Halevy goto out_overflow; 38253ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &offset); 38263ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 38276f723f77SBenny Halevy type = be32_to_cpup(p++); 3828911d1aafSTrond Myklebust if (fl != NULL) { 3829911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3830911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3831911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3832911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3833911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3834911d1aafSTrond Myklebust if (type & 1) 3835911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3836911d1aafSTrond Myklebust fl->fl_pid = 0; 3837911d1aafSTrond Myklebust } 38383ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &clientid); 3839cccddf4fSBenny Halevy namelen = be32_to_cpup(p); 3840c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, namelen); 3841c0eae66eSBenny Halevy if (likely(p)) 38421da177e4SLinus Torvalds return -NFS4ERR_DENIED; 3843c0eae66eSBenny Halevy out_overflow: 3844c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3845c0eae66eSBenny Halevy return -EIO; 38461da177e4SLinus Torvalds } 38471da177e4SLinus Torvalds 3848911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 38491da177e4SLinus Torvalds { 38501da177e4SLinus Torvalds int status; 38511da177e4SLinus Torvalds 38521da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3853c1d51931STrond Myklebust if (status == -EIO) 3854c1d51931STrond Myklebust goto out; 38551da177e4SLinus Torvalds if (status == 0) { 385607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 385707d30434SBenny Halevy if (unlikely(status)) 385807d30434SBenny Halevy goto out; 38591da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3860c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3861c1d51931STrond Myklebust if (res->open_seqid != NULL) 3862c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3863c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3864c1d51931STrond Myklebust out: 38651da177e4SLinus Torvalds return status; 38661da177e4SLinus Torvalds } 38671da177e4SLinus Torvalds 3868911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 38691da177e4SLinus Torvalds { 38701da177e4SLinus Torvalds int status; 38711da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 38721da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3873911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 38741da177e4SLinus Torvalds return status; 38751da177e4SLinus Torvalds } 38761da177e4SLinus Torvalds 3877911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 38781da177e4SLinus Torvalds { 38791da177e4SLinus Torvalds int status; 38801da177e4SLinus Torvalds 38811da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3882c1d51931STrond Myklebust if (status != -EIO) 3883c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 388407d30434SBenny Halevy if (status == 0) 388507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 38861da177e4SLinus Torvalds return status; 38871da177e4SLinus Torvalds } 38881da177e4SLinus Torvalds 38891da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 38901da177e4SLinus Torvalds { 38911da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 38921da177e4SLinus Torvalds } 38931da177e4SLinus Torvalds 38941da177e4SLinus Torvalds /* This is too sick! */ 38951da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 38961da177e4SLinus Torvalds { 38978687b63aSAl Viro __be32 *p; 38981da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 38991da177e4SLinus Torvalds 3900c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3901c0eae66eSBenny Halevy if (unlikely(!p)) 3902c0eae66eSBenny Halevy goto out_overflow; 39036f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 39041da177e4SLinus Torvalds switch (limit_type) { 39051da177e4SLinus Torvalds case 1: 3906cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 39071da177e4SLinus Torvalds break; 39081da177e4SLinus Torvalds case 2: 39096f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 3910cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 39111da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 39121da177e4SLinus Torvalds } 39131da177e4SLinus Torvalds return 0; 3914c0eae66eSBenny Halevy out_overflow: 3915c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3916c0eae66eSBenny Halevy return -EIO; 39171da177e4SLinus Torvalds } 39181da177e4SLinus Torvalds 39191da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 39201da177e4SLinus Torvalds { 39218687b63aSAl Viro __be32 *p; 39221da177e4SLinus Torvalds uint32_t delegation_type; 392307d30434SBenny Halevy int status; 39241da177e4SLinus Torvalds 3925c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3926c0eae66eSBenny Halevy if (unlikely(!p)) 3927c0eae66eSBenny Halevy goto out_overflow; 3928cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 39291da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 39301da177e4SLinus Torvalds res->delegation_type = 0; 39311da177e4SLinus Torvalds return 0; 39321da177e4SLinus Torvalds } 393307d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 393407d30434SBenny Halevy if (unlikely(status)) 393507d30434SBenny Halevy return status; 3936c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3937c0eae66eSBenny Halevy if (unlikely(!p)) 3938c0eae66eSBenny Halevy goto out_overflow; 3939cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 394005d564feSAndy Adamson 39411da177e4SLinus Torvalds switch (delegation_type) { 39421da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 39431da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 39441da177e4SLinus Torvalds break; 39451da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 39461da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 39471da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 39481da177e4SLinus Torvalds return -EIO; 39491da177e4SLinus Torvalds } 39507539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 3951c0eae66eSBenny Halevy out_overflow: 3952c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3953c0eae66eSBenny Halevy return -EIO; 39541da177e4SLinus Torvalds } 39551da177e4SLinus Torvalds 39561da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 39571da177e4SLinus Torvalds { 39588687b63aSAl Viro __be32 *p; 3959aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 39601da177e4SLinus Torvalds int status; 39611da177e4SLinus Torvalds 39621da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 3963c1d51931STrond Myklebust if (status != -EIO) 3964c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 396507d30434SBenny Halevy if (!status) 396607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 396707d30434SBenny Halevy if (unlikely(status)) 39681da177e4SLinus Torvalds return status; 39691da177e4SLinus Torvalds 39701da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 39711da177e4SLinus Torvalds 3972c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3973c0eae66eSBenny Halevy if (unlikely(!p)) 3974c0eae66eSBenny Halevy goto out_overflow; 39756f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 3976cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 39771da177e4SLinus Torvalds if (bmlen > 10) 39781da177e4SLinus Torvalds goto xdr_error; 39791da177e4SLinus Torvalds 3980c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3981c0eae66eSBenny Halevy if (unlikely(!p)) 3982c0eae66eSBenny Halevy goto out_overflow; 3983aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3984aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 39856f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 3986aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3987aa53ed54SJeff Layton res->attrset[i] = 0; 3988aa53ed54SJeff Layton 39891da177e4SLinus Torvalds return decode_delegation(xdr, res); 39901da177e4SLinus Torvalds xdr_error: 39913110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 39921da177e4SLinus Torvalds return -EIO; 3993c0eae66eSBenny Halevy out_overflow: 3994c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3995c0eae66eSBenny Halevy return -EIO; 39961da177e4SLinus Torvalds } 39971da177e4SLinus Torvalds 39981da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 39991da177e4SLinus Torvalds { 40001da177e4SLinus Torvalds int status; 40011da177e4SLinus Torvalds 40021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4003c1d51931STrond Myklebust if (status != -EIO) 4004c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 400507d30434SBenny Halevy if (!status) 400607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 40071da177e4SLinus Torvalds return status; 40081da177e4SLinus Torvalds } 40091da177e4SLinus Torvalds 40101da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 40111da177e4SLinus Torvalds { 40121da177e4SLinus Torvalds int status; 40131da177e4SLinus Torvalds 40141da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4015c1d51931STrond Myklebust if (status != -EIO) 4016c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 401707d30434SBenny Halevy if (!status) 401807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 40191da177e4SLinus Torvalds return status; 40201da177e4SLinus Torvalds } 40211da177e4SLinus Torvalds 40221da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 40231da177e4SLinus Torvalds { 40241da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 40251da177e4SLinus Torvalds } 40261da177e4SLinus Torvalds 40271da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 40281da177e4SLinus Torvalds { 40291da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 40301da177e4SLinus Torvalds } 40311da177e4SLinus Torvalds 40321da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 40331da177e4SLinus Torvalds { 40341da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 40358687b63aSAl Viro __be32 *p; 40361da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 40371da177e4SLinus Torvalds int status; 40381da177e4SLinus Torvalds 40391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 40401da177e4SLinus Torvalds if (status) 40411da177e4SLinus Torvalds return status; 4042c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4043c0eae66eSBenny Halevy if (unlikely(!p)) 4044c0eae66eSBenny Halevy goto out_overflow; 40456f723f77SBenny Halevy eof = be32_to_cpup(p++); 4046cccddf4fSBenny Halevy count = be32_to_cpup(p); 40471da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 40481da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 40491da177e4SLinus Torvalds if (count > recvd) { 4050fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 40511da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 40521da177e4SLinus Torvalds count = recvd; 40531da177e4SLinus Torvalds eof = 0; 40541da177e4SLinus Torvalds } 40551da177e4SLinus Torvalds xdr_read_pages(xdr, count); 40561da177e4SLinus Torvalds res->eof = eof; 40571da177e4SLinus Torvalds res->count = count; 40581da177e4SLinus Torvalds return 0; 4059c0eae66eSBenny Halevy out_overflow: 4060c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4061c0eae66eSBenny Halevy return -EIO; 40621da177e4SLinus Torvalds } 40631da177e4SLinus Torvalds 40641da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 40651da177e4SLinus Torvalds { 40661da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 40671da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 40681da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4069bcecff77SChuck Lever size_t hdrlen; 4070bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 40718687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 40727bda2cdfSJeff Layton unsigned int nr = 0; 4073bcecff77SChuck Lever int status; 40741da177e4SLinus Torvalds 40751da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4076db942bbdSBenny Halevy if (!status) 4077db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4078db942bbdSBenny Halevy if (unlikely(status)) 40791da177e4SLinus Torvalds return status; 408044109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 408144109241SFred Isaman __func__, 4082eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4083eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4084eadf4598STrond Myklebust 40851da177e4SLinus Torvalds 4086db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 40871da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 40881da177e4SLinus Torvalds if (pglen > recvd) 40891da177e4SLinus Torvalds pglen = recvd; 40901da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 40911da177e4SLinus Torvalds 40921da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 40938687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 4094e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 40951da177e4SLinus Torvalds entry = p; 40967bda2cdfSJeff Layton 40977bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 40987bda2cdfSJeff Layton if ((entry + 1) > end) 40997bda2cdfSJeff Layton goto short_pkt; 41007bda2cdfSJeff Layton 41017bda2cdfSJeff Layton for (; *p++; nr++) { 4102bcecff77SChuck Lever u32 len, attrlen, xlen; 4103e8896495SDavid Howells if (end - p < 3) 41041da177e4SLinus Torvalds goto short_pkt; 4105eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 41061da177e4SLinus Torvalds p += 2; /* cookie */ 41071da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 41081da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 4109fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 4110fe82a183SChuck Lever len); 41111da177e4SLinus Torvalds goto err_unmap; 41121da177e4SLinus Torvalds } 4113e8896495SDavid Howells xlen = XDR_QUADLEN(len); 4114e8896495SDavid Howells if (end - p < xlen + 1) 4115e8896495SDavid Howells goto short_pkt; 4116eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 4117e8896495SDavid Howells p += xlen; 41181da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 4119e8896495SDavid Howells if (end - p < len + 1) 4120e8896495SDavid Howells goto short_pkt; 41211da177e4SLinus Torvalds p += len; 41221da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 4123e8896495SDavid Howells if (end - p < attrlen + 2) 41241da177e4SLinus Torvalds goto short_pkt; 4125e8896495SDavid Howells p += attrlen; /* attributes */ 41261da177e4SLinus Torvalds entry = p; 41271da177e4SLinus Torvalds } 41287bda2cdfSJeff Layton /* 41297bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 41307bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 41317bda2cdfSJeff Layton * those, just set the EOF marker. 41327bda2cdfSJeff Layton */ 41337bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 41347bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 41357bda2cdfSJeff Layton entry[1] = 1; 41367bda2cdfSJeff Layton } 41371da177e4SLinus Torvalds out: 41381da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 41391da177e4SLinus Torvalds return 0; 41401da177e4SLinus Torvalds short_pkt: 41417bda2cdfSJeff Layton /* 41427bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 41437bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 41447bda2cdfSJeff Layton * response and return what we have so far. If there are no 41457bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 41467bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 41477bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 41487bda2cdfSJeff Layton * readdir starting at the last cookie. 41497bda2cdfSJeff Layton */ 41503110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 41511da177e4SLinus Torvalds entry[0] = entry[1] = 0; 41527bda2cdfSJeff Layton if (nr) 41531da177e4SLinus Torvalds goto out; 41541da177e4SLinus Torvalds err_unmap: 41551da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 41561da177e4SLinus Torvalds return -errno_NFSERR_IO; 41571da177e4SLinus Torvalds } 41581da177e4SLinus Torvalds 41591da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 41601da177e4SLinus Torvalds { 41611da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 41621da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4163bcecff77SChuck Lever size_t hdrlen; 4164bcecff77SChuck Lever u32 len, recvd; 41658687b63aSAl Viro __be32 *p; 41661da177e4SLinus Torvalds char *kaddr; 41671da177e4SLinus Torvalds int status; 41681da177e4SLinus Torvalds 41691da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 41701da177e4SLinus Torvalds if (status) 41711da177e4SLinus Torvalds return status; 41721da177e4SLinus Torvalds 41731da177e4SLinus Torvalds /* Convert length of symlink */ 4174c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4175c0eae66eSBenny Halevy if (unlikely(!p)) 4176c0eae66eSBenny Halevy goto out_overflow; 4177cccddf4fSBenny Halevy len = be32_to_cpup(p); 41781da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4179fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 41801da177e4SLinus Torvalds return -ENAMETOOLONG; 41811da177e4SLinus Torvalds } 41821da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 41831da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 41841da177e4SLinus Torvalds if (recvd < len) { 4185fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 41861da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 41871da177e4SLinus Torvalds return -EIO; 41881da177e4SLinus Torvalds } 41891da177e4SLinus Torvalds xdr_read_pages(xdr, len); 41901da177e4SLinus Torvalds /* 41911da177e4SLinus Torvalds * The XDR encode routine has set things up so that 41921da177e4SLinus Torvalds * the link text will be copied directly into the 41931da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 41941da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 41951da177e4SLinus Torvalds * null-termination). 41961da177e4SLinus Torvalds */ 41971da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 41981da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 41991da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 42001da177e4SLinus Torvalds return 0; 4201c0eae66eSBenny Halevy out_overflow: 4202c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4203c0eae66eSBenny Halevy return -EIO; 42041da177e4SLinus Torvalds } 42051da177e4SLinus Torvalds 42061da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42071da177e4SLinus Torvalds { 42081da177e4SLinus Torvalds int status; 42091da177e4SLinus Torvalds 42101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 42111da177e4SLinus Torvalds if (status) 42121da177e4SLinus Torvalds goto out; 42131da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 42141da177e4SLinus Torvalds out: 42151da177e4SLinus Torvalds return status; 42161da177e4SLinus Torvalds } 42171da177e4SLinus Torvalds 42181da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 42191da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 42201da177e4SLinus Torvalds { 42211da177e4SLinus Torvalds int status; 42221da177e4SLinus Torvalds 42231da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 42241da177e4SLinus Torvalds if (status) 42251da177e4SLinus Torvalds goto out; 42261da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 42271da177e4SLinus Torvalds goto out; 42281da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 42291da177e4SLinus Torvalds out: 42301da177e4SLinus Torvalds return status; 42311da177e4SLinus Torvalds } 42321da177e4SLinus Torvalds 42331da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 42341da177e4SLinus Torvalds { 42351da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 42361da177e4SLinus Torvalds } 42371da177e4SLinus Torvalds 423856ae19f3STrond Myklebust static int 423956ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 424056ae19f3STrond Myklebust { 424156ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 424256ae19f3STrond Myklebust } 424356ae19f3STrond Myklebust 4244029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4245029d105eSJ. Bruce Fields size_t *acl_len) 4246029d105eSJ. Bruce Fields { 42478687b63aSAl Viro __be32 *savep; 4248029d105eSJ. Bruce Fields uint32_t attrlen, 4249029d105eSJ. Bruce Fields bitmap[2] = {0}; 4250029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4251029d105eSJ. Bruce Fields int status; 4252029d105eSJ. Bruce Fields 4253029d105eSJ. Bruce Fields *acl_len = 0; 4254029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4255029d105eSJ. Bruce Fields goto out; 4256029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4257029d105eSJ. Bruce Fields goto out; 4258029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4259029d105eSJ. Bruce Fields goto out; 4260029d105eSJ. Bruce Fields 4261029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4262029d105eSJ. Bruce Fields return -EIO; 4263029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4264bcecff77SChuck Lever size_t hdrlen; 4265bcecff77SChuck Lever u32 recvd; 4266029d105eSJ. Bruce Fields 4267029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4268029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4269029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4270029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4271029d105eSJ. Bruce Fields if (attrlen > recvd) { 4272fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4273029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4274029d105eSJ. Bruce Fields attrlen, recvd); 4275029d105eSJ. Bruce Fields return -EINVAL; 4276029d105eSJ. Bruce Fields } 4277029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4278029d105eSJ. Bruce Fields *acl_len = attrlen; 42798c233cf9SJ. Bruce Fields } else 42808c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4281029d105eSJ. Bruce Fields 4282029d105eSJ. Bruce Fields out: 4283029d105eSJ. Bruce Fields return status; 4284029d105eSJ. Bruce Fields } 4285029d105eSJ. Bruce Fields 42861da177e4SLinus Torvalds static int 42871da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 42881da177e4SLinus Torvalds { 42891da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 42901da177e4SLinus Torvalds } 42911da177e4SLinus Torvalds 42929e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 42931da177e4SLinus Torvalds { 42948687b63aSAl Viro __be32 *p; 42951da177e4SLinus Torvalds uint32_t bmlen; 42961da177e4SLinus Torvalds int status; 42971da177e4SLinus Torvalds 42981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 42991da177e4SLinus Torvalds if (status) 43001da177e4SLinus Torvalds return status; 4301c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4302c0eae66eSBenny Halevy if (unlikely(!p)) 4303c0eae66eSBenny Halevy goto out_overflow; 4304cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4305c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4306c0eae66eSBenny Halevy if (likely(p)) 43071da177e4SLinus Torvalds return 0; 4308c0eae66eSBenny Halevy out_overflow: 4309c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4310c0eae66eSBenny Halevy return -EIO; 43111da177e4SLinus Torvalds } 43121da177e4SLinus Torvalds 4313adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 43141da177e4SLinus Torvalds { 43158687b63aSAl Viro __be32 *p; 43161da177e4SLinus Torvalds uint32_t opnum; 43171da177e4SLinus Torvalds int32_t nfserr; 43181da177e4SLinus Torvalds 4319c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4320c0eae66eSBenny Halevy if (unlikely(!p)) 4321c0eae66eSBenny Halevy goto out_overflow; 43226f723f77SBenny Halevy opnum = be32_to_cpup(p++); 43231da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4324fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 43251da177e4SLinus Torvalds " %d\n", opnum); 43261da177e4SLinus Torvalds return -EIO; 43271da177e4SLinus Torvalds } 4328cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 43291da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4330c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4331c0eae66eSBenny Halevy if (unlikely(!p)) 4332c0eae66eSBenny Halevy goto out_overflow; 43333ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &clp->cl_clientid); 433499398d06SBenny Halevy memcpy(clp->cl_confirm.data, p, NFS4_VERIFIER_SIZE); 43351da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 43361da177e4SLinus Torvalds uint32_t len; 43371da177e4SLinus Torvalds 43381da177e4SLinus Torvalds /* skip netid string */ 4339c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4340c0eae66eSBenny Halevy if (unlikely(!p)) 4341c0eae66eSBenny Halevy goto out_overflow; 4342cccddf4fSBenny Halevy len = be32_to_cpup(p); 4343c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4344c0eae66eSBenny Halevy if (unlikely(!p)) 4345c0eae66eSBenny Halevy goto out_overflow; 43461da177e4SLinus Torvalds 43471da177e4SLinus Torvalds /* skip uaddr string */ 4348c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4349c0eae66eSBenny Halevy if (unlikely(!p)) 4350c0eae66eSBenny Halevy goto out_overflow; 4351cccddf4fSBenny Halevy len = be32_to_cpup(p); 4352c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4353c0eae66eSBenny Halevy if (unlikely(!p)) 4354c0eae66eSBenny Halevy goto out_overflow; 43551da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 43561da177e4SLinus Torvalds } else 4357856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 43581da177e4SLinus Torvalds 43591da177e4SLinus Torvalds return 0; 4360c0eae66eSBenny Halevy out_overflow: 4361c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4362c0eae66eSBenny Halevy return -EIO; 43631da177e4SLinus Torvalds } 43641da177e4SLinus Torvalds 43651da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 43661da177e4SLinus Torvalds { 43671da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 43681da177e4SLinus Torvalds } 43691da177e4SLinus Torvalds 43701da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 43711da177e4SLinus Torvalds { 43728687b63aSAl Viro __be32 *p; 43731da177e4SLinus Torvalds int status; 43741da177e4SLinus Torvalds 43751da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 43761da177e4SLinus Torvalds if (status) 43771da177e4SLinus Torvalds return status; 43781da177e4SLinus Torvalds 4379c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4380c0eae66eSBenny Halevy if (unlikely(!p)) 4381c0eae66eSBenny Halevy goto out_overflow; 43826f723f77SBenny Halevy res->count = be32_to_cpup(p++); 43836f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 438499398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 43851da177e4SLinus Torvalds return 0; 4386c0eae66eSBenny Halevy out_overflow: 4387c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4388c0eae66eSBenny Halevy return -EIO; 43891da177e4SLinus Torvalds } 43901da177e4SLinus Torvalds 43911da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 43921da177e4SLinus Torvalds { 43931da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 43941da177e4SLinus Torvalds } 43951da177e4SLinus Torvalds 439699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 439799fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 439899fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 439999fe60d0SBenny Halevy { 440099fe60d0SBenny Halevy __be32 *p; 440199fe60d0SBenny Halevy uint32_t dummy; 44022460ba57SBenny Halevy char *dummy_str; 440399fe60d0SBenny Halevy int status; 440499fe60d0SBenny Halevy struct nfs_client *clp = res->client; 440599fe60d0SBenny Halevy 440699fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 440799fe60d0SBenny Halevy if (status) 440899fe60d0SBenny Halevy return status; 440999fe60d0SBenny Halevy 4410c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4411c0eae66eSBenny Halevy if (unlikely(!p)) 4412c0eae66eSBenny Halevy goto out_overflow; 4413cccddf4fSBenny Halevy xdr_decode_hyper(p, &clp->cl_ex_clid); 4414c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4415c0eae66eSBenny Halevy if (unlikely(!p)) 4416c0eae66eSBenny Halevy goto out_overflow; 44176f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 44186f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 441999fe60d0SBenny Halevy 442099fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4421cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 442299fe60d0SBenny Halevy if (dummy != SP4_NONE) 442399fe60d0SBenny Halevy return -EIO; 442499fe60d0SBenny Halevy 442599fe60d0SBenny Halevy /* Throw away minor_id */ 4426c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4427c0eae66eSBenny Halevy if (unlikely(!p)) 4428c0eae66eSBenny Halevy goto out_overflow; 442999fe60d0SBenny Halevy 443099fe60d0SBenny Halevy /* Throw away Major id */ 44312460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 44322460ba57SBenny Halevy if (unlikely(status)) 44332460ba57SBenny Halevy return status; 443499fe60d0SBenny Halevy 443599fe60d0SBenny Halevy /* Throw away server_scope */ 44362460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 44372460ba57SBenny Halevy if (unlikely(status)) 44382460ba57SBenny Halevy return status; 443999fe60d0SBenny Halevy 444099fe60d0SBenny Halevy /* Throw away Implementation id array */ 44412460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 44422460ba57SBenny Halevy if (unlikely(status)) 44432460ba57SBenny Halevy return status; 444499fe60d0SBenny Halevy 444599fe60d0SBenny Halevy return 0; 4446c0eae66eSBenny Halevy out_overflow: 4447c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4448c0eae66eSBenny Halevy return -EIO; 444999fe60d0SBenny Halevy } 4450fc931582SAndy Adamson 4451fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4452fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4453fc931582SAndy Adamson { 4454fc931582SAndy Adamson __be32 *p; 4455fc931582SAndy Adamson u32 nr_attrs; 4456fc931582SAndy Adamson 4457c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4458c0eae66eSBenny Halevy if (unlikely(!p)) 4459c0eae66eSBenny Halevy goto out_overflow; 44606f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 44616f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 44626f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 44636f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 44646f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 44656f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4466cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4467fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4468fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4469fc931582SAndy Adamson __func__, nr_attrs); 4470fc931582SAndy Adamson return -EINVAL; 4471fc931582SAndy Adamson } 4472c0eae66eSBenny Halevy if (nr_attrs == 1) { 4473c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4474c0eae66eSBenny Halevy if (unlikely(!p)) 4475c0eae66eSBenny Halevy goto out_overflow; 4476c0eae66eSBenny Halevy } 4477fc931582SAndy Adamson return 0; 4478c0eae66eSBenny Halevy out_overflow: 4479c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4480c0eae66eSBenny Halevy return -EIO; 4481fc931582SAndy Adamson } 4482fc931582SAndy Adamson 4483e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4484e78291e4SBenny Halevy { 4485e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4486e78291e4SBenny Halevy } 4487e78291e4SBenny Halevy 4488fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4489fc931582SAndy Adamson struct nfs41_create_session_res *res) 4490fc931582SAndy Adamson { 4491fc931582SAndy Adamson __be32 *p; 4492fc931582SAndy Adamson int status; 4493fc931582SAndy Adamson struct nfs_client *clp = res->client; 4494fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4495fc931582SAndy Adamson 4496fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4497e78291e4SBenny Halevy if (!status) 4498e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4499e78291e4SBenny Halevy if (unlikely(status)) 4500fc931582SAndy Adamson return status; 4501fc931582SAndy Adamson 4502fc931582SAndy Adamson /* seqid, flags */ 4503c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4504c0eae66eSBenny Halevy if (unlikely(!p)) 4505c0eae66eSBenny Halevy goto out_overflow; 45066f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4507cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4508fc931582SAndy Adamson 4509fc931582SAndy Adamson /* Channel attributes */ 4510fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4511fc931582SAndy Adamson if (!status) 4512fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4513fc931582SAndy Adamson return status; 4514c0eae66eSBenny Halevy out_overflow: 4515c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4516c0eae66eSBenny Halevy return -EIO; 4517fc931582SAndy Adamson } 45180f3e66c6SAndy Adamson 45190f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 45200f3e66c6SAndy Adamson { 45210f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 45220f3e66c6SAndy Adamson } 452399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 452499fe60d0SBenny Halevy 45259b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 45269b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 45279b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 45289b7b9fccSAndy Adamson { 45299b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4530fc01cea9SAndy Adamson struct nfs4_slot *slot; 4531fc01cea9SAndy Adamson struct nfs4_sessionid id; 4532fc01cea9SAndy Adamson u32 dummy; 4533fc01cea9SAndy Adamson int status; 4534fc01cea9SAndy Adamson __be32 *p; 4535fc01cea9SAndy Adamson 45369b7b9fccSAndy Adamson if (!res->sr_session) 45379b7b9fccSAndy Adamson return 0; 45389b7b9fccSAndy Adamson 4539fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4540e78291e4SBenny Halevy if (!status) 4541e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 4542e78291e4SBenny Halevy if (unlikely(status)) 4543fc01cea9SAndy Adamson goto out_err; 45449b7b9fccSAndy Adamson 4545fc01cea9SAndy Adamson /* 4546fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4547fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4548fc01cea9SAndy Adamson */ 4549fc01cea9SAndy Adamson status = -ESERVERFAULT; 4550fc01cea9SAndy Adamson 4551fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4552fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4553fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4554fc01cea9SAndy Adamson goto out_err; 4555fc01cea9SAndy Adamson } 4556e78291e4SBenny Halevy 4557c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4558c0eae66eSBenny Halevy if (unlikely(!p)) 4559c0eae66eSBenny Halevy goto out_overflow; 4560e78291e4SBenny Halevy 4561fc01cea9SAndy Adamson /* seqid */ 4562e78291e4SBenny Halevy slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; 45636f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4564fc01cea9SAndy Adamson if (dummy != slot->seq_nr) { 4565fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4566fc01cea9SAndy Adamson goto out_err; 4567fc01cea9SAndy Adamson } 4568fc01cea9SAndy Adamson /* slot id */ 45696f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4570fc01cea9SAndy Adamson if (dummy != res->sr_slotid) { 4571fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4572fc01cea9SAndy Adamson goto out_err; 4573fc01cea9SAndy Adamson } 4574fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 45756f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4576fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 45776f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4578fc01cea9SAndy Adamson /* result flags - currently not processed */ 4579cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 4580fc01cea9SAndy Adamson status = 0; 4581fc01cea9SAndy Adamson out_err: 4582fc01cea9SAndy Adamson res->sr_status = status; 4583fc01cea9SAndy Adamson return status; 4584c0eae66eSBenny Halevy out_overflow: 4585c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4586c0eae66eSBenny Halevy status = -EIO; 4587c0eae66eSBenny Halevy goto out_err; 4588fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 45899b7b9fccSAndy Adamson return 0; 4590fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 45919b7b9fccSAndy Adamson } 45929b7b9fccSAndy Adamson 45931da177e4SLinus Torvalds /* 459449c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 459549c2559eSBenny Halevy */ 459649c2559eSBenny Halevy 459749c2559eSBenny Halevy /* 45981da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 45991da177e4SLinus Torvalds */ 46008687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 46011da177e4SLinus Torvalds { 46021da177e4SLinus Torvalds struct xdr_stream xdr; 46031da177e4SLinus Torvalds struct compound_hdr hdr; 46041da177e4SLinus Torvalds int status; 46051da177e4SLinus Torvalds 46061da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46071da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 46081da177e4SLinus Torvalds if (status) 46091da177e4SLinus Torvalds goto out; 46109b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46119b7b9fccSAndy Adamson if (status) 46129b7b9fccSAndy Adamson goto out; 46131da177e4SLinus Torvalds status = decode_putfh(&xdr); 46141da177e4SLinus Torvalds if (status) 46151da177e4SLinus Torvalds goto out; 46161da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4617516a6af6STrond Myklebust if (status != 0) 4618516a6af6STrond Myklebust goto out; 4619516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 46201da177e4SLinus Torvalds out: 46211da177e4SLinus Torvalds return status; 46221da177e4SLinus Torvalds } 46231da177e4SLinus Torvalds 46241da177e4SLinus Torvalds /* 46251da177e4SLinus Torvalds * Decode ACCESS response 46261da177e4SLinus Torvalds */ 46278687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 46281da177e4SLinus Torvalds { 46291da177e4SLinus Torvalds struct xdr_stream xdr; 46301da177e4SLinus Torvalds struct compound_hdr hdr; 46311da177e4SLinus Torvalds int status; 46321da177e4SLinus Torvalds 46331da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46349b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 46359b7b9fccSAndy Adamson if (status) 46369b7b9fccSAndy Adamson goto out; 46379b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46389b7b9fccSAndy Adamson if (status) 46391da177e4SLinus Torvalds goto out; 464076b32999STrond Myklebust status = decode_putfh(&xdr); 464176b32999STrond Myklebust if (status != 0) 464276b32999STrond Myklebust goto out; 46431da177e4SLinus Torvalds status = decode_access(&xdr, res); 464476b32999STrond Myklebust if (status != 0) 464576b32999STrond Myklebust goto out; 464676b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 46471da177e4SLinus Torvalds out: 46481da177e4SLinus Torvalds return status; 46491da177e4SLinus Torvalds } 46501da177e4SLinus Torvalds 46511da177e4SLinus Torvalds /* 46521da177e4SLinus Torvalds * Decode LOOKUP response 46531da177e4SLinus Torvalds */ 46548687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 46551da177e4SLinus Torvalds { 46561da177e4SLinus Torvalds struct xdr_stream xdr; 46571da177e4SLinus Torvalds struct compound_hdr hdr; 46581da177e4SLinus Torvalds int status; 46591da177e4SLinus Torvalds 46601da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46619b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 46629b7b9fccSAndy Adamson if (status) 46639b7b9fccSAndy Adamson goto out; 46649b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46659b7b9fccSAndy Adamson if (status) 46661da177e4SLinus Torvalds goto out; 46671da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 46681da177e4SLinus Torvalds goto out; 46691da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 46701da177e4SLinus Torvalds goto out; 46711da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 46721da177e4SLinus Torvalds goto out; 46731da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 46741da177e4SLinus Torvalds out: 46751da177e4SLinus Torvalds return status; 46761da177e4SLinus Torvalds } 46771da177e4SLinus Torvalds 46781da177e4SLinus Torvalds /* 46791da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 46801da177e4SLinus Torvalds */ 46818687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 46821da177e4SLinus Torvalds { 46831da177e4SLinus Torvalds struct xdr_stream xdr; 46841da177e4SLinus Torvalds struct compound_hdr hdr; 46851da177e4SLinus Torvalds int status; 46861da177e4SLinus Torvalds 46871da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46889b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 46899b7b9fccSAndy Adamson if (status) 46909b7b9fccSAndy Adamson goto out; 46919b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46929b7b9fccSAndy Adamson if (status) 46931da177e4SLinus Torvalds goto out; 46941da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 46951da177e4SLinus Torvalds goto out; 46961da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 46971da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 46981da177e4SLinus Torvalds out: 46991da177e4SLinus Torvalds return status; 47001da177e4SLinus Torvalds } 47011da177e4SLinus Torvalds 47021da177e4SLinus Torvalds /* 47031da177e4SLinus Torvalds * Decode REMOVE response 47041da177e4SLinus Torvalds */ 47054fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 47061da177e4SLinus Torvalds { 47071da177e4SLinus Torvalds struct xdr_stream xdr; 47081da177e4SLinus Torvalds struct compound_hdr hdr; 47091da177e4SLinus Torvalds int status; 47101da177e4SLinus Torvalds 47111da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47129b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47139b7b9fccSAndy Adamson if (status) 47149b7b9fccSAndy Adamson goto out; 47159b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47169b7b9fccSAndy Adamson if (status) 47171da177e4SLinus Torvalds goto out; 471816e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 471916e42959STrond Myklebust goto out; 472016e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 472116e42959STrond Myklebust goto out; 47224fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 47231da177e4SLinus Torvalds out: 47241da177e4SLinus Torvalds return status; 47251da177e4SLinus Torvalds } 47261da177e4SLinus Torvalds 47271da177e4SLinus Torvalds /* 47281da177e4SLinus Torvalds * Decode RENAME response 47291da177e4SLinus Torvalds */ 47308687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 47311da177e4SLinus Torvalds { 47321da177e4SLinus Torvalds struct xdr_stream xdr; 47331da177e4SLinus Torvalds struct compound_hdr hdr; 47341da177e4SLinus Torvalds int status; 47351da177e4SLinus Torvalds 47361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47379b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47389b7b9fccSAndy Adamson if (status) 47399b7b9fccSAndy Adamson goto out; 47409b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47419b7b9fccSAndy Adamson if (status) 47421da177e4SLinus Torvalds goto out; 47431da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 47441da177e4SLinus Torvalds goto out; 47451da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 47461da177e4SLinus Torvalds goto out; 47471da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 47481da177e4SLinus Torvalds goto out; 47496caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 47506caf2c82STrond Myklebust goto out; 47516caf2c82STrond Myklebust /* Current FH is target directory */ 47526caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 47536caf2c82STrond Myklebust goto out; 47546caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 47556caf2c82STrond Myklebust goto out; 47566caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 47571da177e4SLinus Torvalds out: 47581da177e4SLinus Torvalds return status; 47591da177e4SLinus Torvalds } 47601da177e4SLinus Torvalds 47611da177e4SLinus Torvalds /* 47621da177e4SLinus Torvalds * Decode LINK response 47631da177e4SLinus Torvalds */ 47648687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 47651da177e4SLinus Torvalds { 47661da177e4SLinus Torvalds struct xdr_stream xdr; 47671da177e4SLinus Torvalds struct compound_hdr hdr; 47681da177e4SLinus Torvalds int status; 47691da177e4SLinus Torvalds 47701da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47719b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47729b7b9fccSAndy Adamson if (status) 47739b7b9fccSAndy Adamson goto out; 47749b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47759b7b9fccSAndy Adamson if (status) 47761da177e4SLinus Torvalds goto out; 47771da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 47781da177e4SLinus Torvalds goto out; 47791da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 47801da177e4SLinus Torvalds goto out; 47811da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 47821da177e4SLinus Torvalds goto out; 478391ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 478491ba2eeeSTrond Myklebust goto out; 478591ba2eeeSTrond Myklebust /* 478691ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 478791ba2eeeSTrond Myklebust * filehandle. 478891ba2eeeSTrond Myklebust */ 478991ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 479091ba2eeeSTrond Myklebust goto out; 479191ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 479291ba2eeeSTrond Myklebust goto out; 479391ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 47941da177e4SLinus Torvalds out: 47951da177e4SLinus Torvalds return status; 47961da177e4SLinus Torvalds } 47971da177e4SLinus Torvalds 47981da177e4SLinus Torvalds /* 47991da177e4SLinus Torvalds * Decode CREATE response 48001da177e4SLinus Torvalds */ 48018687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 48021da177e4SLinus Torvalds { 48031da177e4SLinus Torvalds struct xdr_stream xdr; 48041da177e4SLinus Torvalds struct compound_hdr hdr; 48051da177e4SLinus Torvalds int status; 48061da177e4SLinus Torvalds 48071da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48089b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48099b7b9fccSAndy Adamson if (status) 48109b7b9fccSAndy Adamson goto out; 48119b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48129b7b9fccSAndy Adamson if (status) 48131da177e4SLinus Torvalds goto out; 48141da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48151da177e4SLinus Torvalds goto out; 481656ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 481756ae19f3STrond Myklebust goto out; 48181da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 48191da177e4SLinus Torvalds goto out; 48201da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 48211da177e4SLinus Torvalds goto out; 482256ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 482356ae19f3STrond Myklebust goto out; 482456ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 482556ae19f3STrond Myklebust goto out; 482656ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 48271da177e4SLinus Torvalds out: 48281da177e4SLinus Torvalds return status; 48291da177e4SLinus Torvalds } 48301da177e4SLinus Torvalds 48311da177e4SLinus Torvalds /* 48321da177e4SLinus Torvalds * Decode SYMLINK response 48331da177e4SLinus Torvalds */ 48348687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 48351da177e4SLinus Torvalds { 48361da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 48371da177e4SLinus Torvalds } 48381da177e4SLinus Torvalds 48391da177e4SLinus Torvalds /* 48401da177e4SLinus Torvalds * Decode GETATTR response 48411da177e4SLinus Torvalds */ 48428687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 48431da177e4SLinus Torvalds { 48441da177e4SLinus Torvalds struct xdr_stream xdr; 48451da177e4SLinus Torvalds struct compound_hdr hdr; 48461da177e4SLinus Torvalds int status; 48471da177e4SLinus Torvalds 48481da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48491da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48501da177e4SLinus Torvalds if (status) 48511da177e4SLinus Torvalds goto out; 48529b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48539b7b9fccSAndy Adamson if (status) 48549b7b9fccSAndy Adamson goto out; 48551da177e4SLinus Torvalds status = decode_putfh(&xdr); 48561da177e4SLinus Torvalds if (status) 48571da177e4SLinus Torvalds goto out; 48581da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 48591da177e4SLinus Torvalds out: 48601da177e4SLinus Torvalds return status; 48611da177e4SLinus Torvalds } 48621da177e4SLinus Torvalds 486323ec6965SJ. Bruce Fields /* 486423ec6965SJ. Bruce Fields * Encode an SETACL request 486523ec6965SJ. Bruce Fields */ 486623ec6965SJ. Bruce Fields static int 48678687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 486823ec6965SJ. Bruce Fields { 486923ec6965SJ. Bruce Fields struct xdr_stream xdr; 487023ec6965SJ. Bruce Fields struct compound_hdr hdr = { 487166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 487223ec6965SJ. Bruce Fields }; 487323ec6965SJ. Bruce Fields int status; 487423ec6965SJ. Bruce Fields 487523ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 48760c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 48779b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 4878cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 4879d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 4880d017931cSAndy Adamson encode_nops(&hdr); 488123ec6965SJ. Bruce Fields return status; 488223ec6965SJ. Bruce Fields } 488305d564feSAndy Adamson 488423ec6965SJ. Bruce Fields /* 488523ec6965SJ. Bruce Fields * Decode SETACL response 488623ec6965SJ. Bruce Fields */ 488723ec6965SJ. Bruce Fields static int 488873c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 488973c403a9SBenny Halevy struct nfs_setaclres *res) 489023ec6965SJ. Bruce Fields { 489123ec6965SJ. Bruce Fields struct xdr_stream xdr; 489223ec6965SJ. Bruce Fields struct compound_hdr hdr; 489323ec6965SJ. Bruce Fields int status; 489423ec6965SJ. Bruce Fields 489523ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 489623ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 489723ec6965SJ. Bruce Fields if (status) 489823ec6965SJ. Bruce Fields goto out; 48999b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49009b7b9fccSAndy Adamson if (status) 49019b7b9fccSAndy Adamson goto out; 490223ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 490323ec6965SJ. Bruce Fields if (status) 490423ec6965SJ. Bruce Fields goto out; 49059e9ecc03SBenny Halevy status = decode_setattr(&xdr); 490623ec6965SJ. Bruce Fields out: 490723ec6965SJ. Bruce Fields return status; 490823ec6965SJ. Bruce Fields } 49091da177e4SLinus Torvalds 49101da177e4SLinus Torvalds /* 4911029d105eSJ. Bruce Fields * Decode GETACL response 4912029d105eSJ. Bruce Fields */ 4913029d105eSJ. Bruce Fields static int 4914663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 4915663c79b3SBenny Halevy struct nfs_getaclres *res) 4916029d105eSJ. Bruce Fields { 4917029d105eSJ. Bruce Fields struct xdr_stream xdr; 4918029d105eSJ. Bruce Fields struct compound_hdr hdr; 4919029d105eSJ. Bruce Fields int status; 4920029d105eSJ. Bruce Fields 4921029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4922029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4923029d105eSJ. Bruce Fields if (status) 4924029d105eSJ. Bruce Fields goto out; 49259b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49269b7b9fccSAndy Adamson if (status) 49279b7b9fccSAndy Adamson goto out; 4928029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4929029d105eSJ. Bruce Fields if (status) 4930029d105eSJ. Bruce Fields goto out; 4931663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 4932029d105eSJ. Bruce Fields 4933029d105eSJ. Bruce Fields out: 4934029d105eSJ. Bruce Fields return status; 4935029d105eSJ. Bruce Fields } 4936029d105eSJ. Bruce Fields 4937029d105eSJ. Bruce Fields /* 49381da177e4SLinus Torvalds * Decode CLOSE response 49391da177e4SLinus Torvalds */ 49408687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 49411da177e4SLinus Torvalds { 49421da177e4SLinus Torvalds struct xdr_stream xdr; 49431da177e4SLinus Torvalds struct compound_hdr hdr; 49441da177e4SLinus Torvalds int status; 49451da177e4SLinus Torvalds 49461da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49471da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49481da177e4SLinus Torvalds if (status) 49491da177e4SLinus Torvalds goto out; 49509b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49519b7b9fccSAndy Adamson if (status) 49529b7b9fccSAndy Adamson goto out; 49531da177e4SLinus Torvalds status = decode_putfh(&xdr); 49541da177e4SLinus Torvalds if (status) 49551da177e4SLinus Torvalds goto out; 49561da177e4SLinus Torvalds status = decode_close(&xdr, res); 4957516a6af6STrond Myklebust if (status != 0) 4958516a6af6STrond Myklebust goto out; 4959516a6af6STrond Myklebust /* 4960516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4961516a6af6STrond Myklebust * in which case the getattr call will fail with 4962516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4963516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4964516a6af6STrond Myklebust */ 4965516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 49661da177e4SLinus Torvalds out: 49671da177e4SLinus Torvalds return status; 49681da177e4SLinus Torvalds } 49691da177e4SLinus Torvalds 49701da177e4SLinus Torvalds /* 49711da177e4SLinus Torvalds * Decode OPEN response 49721da177e4SLinus Torvalds */ 49738687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 49741da177e4SLinus Torvalds { 49751da177e4SLinus Torvalds struct xdr_stream xdr; 49761da177e4SLinus Torvalds struct compound_hdr hdr; 49771da177e4SLinus Torvalds int status; 49781da177e4SLinus Torvalds 49791da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49801da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49811da177e4SLinus Torvalds if (status) 49821da177e4SLinus Torvalds goto out; 49839b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49849b7b9fccSAndy Adamson if (status) 49859b7b9fccSAndy Adamson goto out; 49861da177e4SLinus Torvalds status = decode_putfh(&xdr); 49871da177e4SLinus Torvalds if (status) 49881da177e4SLinus Torvalds goto out; 498956ae19f3STrond Myklebust status = decode_savefh(&xdr); 499056ae19f3STrond Myklebust if (status) 499156ae19f3STrond Myklebust goto out; 49921da177e4SLinus Torvalds status = decode_open(&xdr, res); 49931da177e4SLinus Torvalds if (status) 49941da177e4SLinus Torvalds goto out; 49959936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 49961da177e4SLinus Torvalds goto out; 499756ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 499856ae19f3STrond Myklebust goto out; 4999365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 500056ae19f3STrond Myklebust goto out; 500156ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 50021da177e4SLinus Torvalds out: 50031da177e4SLinus Torvalds return status; 50041da177e4SLinus Torvalds } 50051da177e4SLinus Torvalds 50061da177e4SLinus Torvalds /* 50071da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 50081da177e4SLinus Torvalds */ 50098687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 50101da177e4SLinus Torvalds { 50111da177e4SLinus Torvalds struct xdr_stream xdr; 50121da177e4SLinus Torvalds struct compound_hdr hdr; 50131da177e4SLinus Torvalds int status; 50141da177e4SLinus Torvalds 50151da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50161da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50171da177e4SLinus Torvalds if (status) 50181da177e4SLinus Torvalds goto out; 50191da177e4SLinus Torvalds status = decode_putfh(&xdr); 50201da177e4SLinus Torvalds if (status) 50211da177e4SLinus Torvalds goto out; 50221da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 50231da177e4SLinus Torvalds out: 50241da177e4SLinus Torvalds return status; 50251da177e4SLinus Torvalds } 50261da177e4SLinus Torvalds 50271da177e4SLinus Torvalds /* 50281da177e4SLinus Torvalds * Decode OPEN response 50291da177e4SLinus Torvalds */ 50308687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 50311da177e4SLinus Torvalds { 50321da177e4SLinus Torvalds struct xdr_stream xdr; 50331da177e4SLinus Torvalds struct compound_hdr hdr; 50341da177e4SLinus Torvalds int status; 50351da177e4SLinus Torvalds 50361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50371da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50381da177e4SLinus Torvalds if (status) 50391da177e4SLinus Torvalds goto out; 50409b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50419b7b9fccSAndy Adamson if (status) 50429b7b9fccSAndy Adamson goto out; 50431da177e4SLinus Torvalds status = decode_putfh(&xdr); 50441da177e4SLinus Torvalds if (status) 50451da177e4SLinus Torvalds goto out; 50461da177e4SLinus Torvalds status = decode_open(&xdr, res); 5047864472e9STrond Myklebust if (status) 5048864472e9STrond Myklebust goto out; 5049864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 50501da177e4SLinus Torvalds out: 50511da177e4SLinus Torvalds return status; 50521da177e4SLinus Torvalds } 50531da177e4SLinus Torvalds 50541da177e4SLinus Torvalds /* 50551da177e4SLinus Torvalds * Decode SETATTR response 50561da177e4SLinus Torvalds */ 50578687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 50581da177e4SLinus Torvalds { 50591da177e4SLinus Torvalds struct xdr_stream xdr; 50601da177e4SLinus Torvalds struct compound_hdr hdr; 50611da177e4SLinus Torvalds int status; 50621da177e4SLinus Torvalds 50631da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50641da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50651da177e4SLinus Torvalds if (status) 50661da177e4SLinus Torvalds goto out; 50679b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50689b7b9fccSAndy Adamson if (status) 50699b7b9fccSAndy Adamson goto out; 50701da177e4SLinus Torvalds status = decode_putfh(&xdr); 50711da177e4SLinus Torvalds if (status) 50721da177e4SLinus Torvalds goto out; 50739e9ecc03SBenny Halevy status = decode_setattr(&xdr); 50741da177e4SLinus Torvalds if (status) 50751da177e4SLinus Torvalds goto out; 507678f945f8STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 50771da177e4SLinus Torvalds out: 50781da177e4SLinus Torvalds return status; 50791da177e4SLinus Torvalds } 50801da177e4SLinus Torvalds 50811da177e4SLinus Torvalds /* 50821da177e4SLinus Torvalds * Decode LOCK response 50831da177e4SLinus Torvalds */ 50848687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 50851da177e4SLinus Torvalds { 50861da177e4SLinus Torvalds struct xdr_stream xdr; 50871da177e4SLinus Torvalds struct compound_hdr hdr; 50881da177e4SLinus Torvalds int status; 50891da177e4SLinus Torvalds 50901da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50911da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50921da177e4SLinus Torvalds if (status) 50931da177e4SLinus Torvalds goto out; 50949b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50959b7b9fccSAndy Adamson if (status) 50969b7b9fccSAndy Adamson goto out; 50971da177e4SLinus Torvalds status = decode_putfh(&xdr); 50981da177e4SLinus Torvalds if (status) 50991da177e4SLinus Torvalds goto out; 51001da177e4SLinus Torvalds status = decode_lock(&xdr, res); 51011da177e4SLinus Torvalds out: 51021da177e4SLinus Torvalds return status; 51031da177e4SLinus Torvalds } 51041da177e4SLinus Torvalds 51051da177e4SLinus Torvalds /* 51061da177e4SLinus Torvalds * Decode LOCKT response 51071da177e4SLinus Torvalds */ 51088687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 51091da177e4SLinus Torvalds { 51101da177e4SLinus Torvalds struct xdr_stream xdr; 51111da177e4SLinus Torvalds struct compound_hdr hdr; 51121da177e4SLinus Torvalds int status; 51131da177e4SLinus Torvalds 51141da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51151da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51161da177e4SLinus Torvalds if (status) 51171da177e4SLinus Torvalds goto out; 51189b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51199b7b9fccSAndy Adamson if (status) 51209b7b9fccSAndy Adamson goto out; 51211da177e4SLinus Torvalds status = decode_putfh(&xdr); 51221da177e4SLinus Torvalds if (status) 51231da177e4SLinus Torvalds goto out; 51241da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 51251da177e4SLinus Torvalds out: 51261da177e4SLinus Torvalds return status; 51271da177e4SLinus Torvalds } 51281da177e4SLinus Torvalds 51291da177e4SLinus Torvalds /* 51301da177e4SLinus Torvalds * Decode LOCKU response 51311da177e4SLinus Torvalds */ 51328687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 51331da177e4SLinus Torvalds { 51341da177e4SLinus Torvalds struct xdr_stream xdr; 51351da177e4SLinus Torvalds struct compound_hdr hdr; 51361da177e4SLinus Torvalds int status; 51371da177e4SLinus Torvalds 51381da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51391da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51401da177e4SLinus Torvalds if (status) 51411da177e4SLinus Torvalds goto out; 51429b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51439b7b9fccSAndy Adamson if (status) 51449b7b9fccSAndy Adamson goto out; 51451da177e4SLinus Torvalds status = decode_putfh(&xdr); 51461da177e4SLinus Torvalds if (status) 51471da177e4SLinus Torvalds goto out; 51481da177e4SLinus Torvalds status = decode_locku(&xdr, res); 51491da177e4SLinus Torvalds out: 51501da177e4SLinus Torvalds return status; 51511da177e4SLinus Torvalds } 51521da177e4SLinus Torvalds 51531da177e4SLinus Torvalds /* 51541da177e4SLinus Torvalds * Decode READLINK response 51551da177e4SLinus Torvalds */ 5156f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 5157f50c7000SBenny Halevy struct nfs4_readlink_res *res) 51581da177e4SLinus Torvalds { 51591da177e4SLinus Torvalds struct xdr_stream xdr; 51601da177e4SLinus Torvalds struct compound_hdr hdr; 51611da177e4SLinus Torvalds int status; 51621da177e4SLinus Torvalds 51631da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51641da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51651da177e4SLinus Torvalds if (status) 51661da177e4SLinus Torvalds goto out; 51679b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51689b7b9fccSAndy Adamson if (status) 51699b7b9fccSAndy Adamson goto out; 51701da177e4SLinus Torvalds status = decode_putfh(&xdr); 51711da177e4SLinus Torvalds if (status) 51721da177e4SLinus Torvalds goto out; 51731da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 51741da177e4SLinus Torvalds out: 51751da177e4SLinus Torvalds return status; 51761da177e4SLinus Torvalds } 51771da177e4SLinus Torvalds 51781da177e4SLinus Torvalds /* 51791da177e4SLinus Torvalds * Decode READDIR response 51801da177e4SLinus Torvalds */ 51818687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 51821da177e4SLinus Torvalds { 51831da177e4SLinus Torvalds struct xdr_stream xdr; 51841da177e4SLinus Torvalds struct compound_hdr hdr; 51851da177e4SLinus Torvalds int status; 51861da177e4SLinus Torvalds 51871da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51881da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51891da177e4SLinus Torvalds if (status) 51901da177e4SLinus Torvalds goto out; 51919b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51929b7b9fccSAndy Adamson if (status) 51939b7b9fccSAndy Adamson goto out; 51941da177e4SLinus Torvalds status = decode_putfh(&xdr); 51951da177e4SLinus Torvalds if (status) 51961da177e4SLinus Torvalds goto out; 51971da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 51981da177e4SLinus Torvalds out: 51991da177e4SLinus Torvalds return status; 52001da177e4SLinus Torvalds } 52011da177e4SLinus Torvalds 52021da177e4SLinus Torvalds /* 52031da177e4SLinus Torvalds * Decode Read response 52041da177e4SLinus Torvalds */ 52058687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 52061da177e4SLinus Torvalds { 52071da177e4SLinus Torvalds struct xdr_stream xdr; 52081da177e4SLinus Torvalds struct compound_hdr hdr; 52091da177e4SLinus Torvalds int status; 52101da177e4SLinus Torvalds 52111da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52121da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52131da177e4SLinus Torvalds if (status) 52141da177e4SLinus Torvalds goto out; 52159b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52169b7b9fccSAndy Adamson if (status) 52179b7b9fccSAndy Adamson goto out; 52181da177e4SLinus Torvalds status = decode_putfh(&xdr); 52191da177e4SLinus Torvalds if (status) 52201da177e4SLinus Torvalds goto out; 52211da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 52221da177e4SLinus Torvalds if (!status) 52231da177e4SLinus Torvalds status = res->count; 52241da177e4SLinus Torvalds out: 52251da177e4SLinus Torvalds return status; 52261da177e4SLinus Torvalds } 52271da177e4SLinus Torvalds 52281da177e4SLinus Torvalds /* 52291da177e4SLinus Torvalds * Decode WRITE response 52301da177e4SLinus Torvalds */ 52318687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 52321da177e4SLinus Torvalds { 52331da177e4SLinus Torvalds struct xdr_stream xdr; 52341da177e4SLinus Torvalds struct compound_hdr hdr; 52351da177e4SLinus Torvalds int status; 52361da177e4SLinus Torvalds 52371da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52381da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52391da177e4SLinus Torvalds if (status) 52401da177e4SLinus Torvalds goto out; 52419b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52429b7b9fccSAndy Adamson if (status) 52439b7b9fccSAndy Adamson goto out; 52441da177e4SLinus Torvalds status = decode_putfh(&xdr); 52451da177e4SLinus Torvalds if (status) 52461da177e4SLinus Torvalds goto out; 52471da177e4SLinus Torvalds status = decode_write(&xdr, res); 52484f9838c7STrond Myklebust if (status) 52494f9838c7STrond Myklebust goto out; 52504f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 52511da177e4SLinus Torvalds if (!status) 52521da177e4SLinus Torvalds status = res->count; 52531da177e4SLinus Torvalds out: 52541da177e4SLinus Torvalds return status; 52551da177e4SLinus Torvalds } 52561da177e4SLinus Torvalds 52571da177e4SLinus Torvalds /* 52581da177e4SLinus Torvalds * Decode COMMIT response 52591da177e4SLinus Torvalds */ 52608687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 52611da177e4SLinus Torvalds { 52621da177e4SLinus Torvalds struct xdr_stream xdr; 52631da177e4SLinus Torvalds struct compound_hdr hdr; 52641da177e4SLinus Torvalds int status; 52651da177e4SLinus Torvalds 52661da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52671da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52681da177e4SLinus Torvalds if (status) 52691da177e4SLinus Torvalds goto out; 52709b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52719b7b9fccSAndy Adamson if (status) 52729b7b9fccSAndy Adamson goto out; 52731da177e4SLinus Torvalds status = decode_putfh(&xdr); 52741da177e4SLinus Torvalds if (status) 52751da177e4SLinus Torvalds goto out; 52761da177e4SLinus Torvalds status = decode_commit(&xdr, res); 52774f9838c7STrond Myklebust if (status) 52784f9838c7STrond Myklebust goto out; 52794f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 52801da177e4SLinus Torvalds out: 52811da177e4SLinus Torvalds return status; 52821da177e4SLinus Torvalds } 52831da177e4SLinus Torvalds 52841da177e4SLinus Torvalds /* 52851da177e4SLinus Torvalds * FSINFO request 52861da177e4SLinus Torvalds */ 52873dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 52883dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 52891da177e4SLinus Torvalds { 52901da177e4SLinus Torvalds struct xdr_stream xdr; 52911da177e4SLinus Torvalds struct compound_hdr hdr; 52921da177e4SLinus Torvalds int status; 52931da177e4SLinus Torvalds 52941da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 52951da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52961da177e4SLinus Torvalds if (!status) 52979b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 52989b7b9fccSAndy Adamson if (!status) 52991da177e4SLinus Torvalds status = decode_putfh(&xdr); 53001da177e4SLinus Torvalds if (!status) 53013dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 53021da177e4SLinus Torvalds return status; 53031da177e4SLinus Torvalds } 53041da177e4SLinus Torvalds 53051da177e4SLinus Torvalds /* 53061da177e4SLinus Torvalds * PATHCONF request 53071da177e4SLinus Torvalds */ 5308d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5309d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 53101da177e4SLinus Torvalds { 53111da177e4SLinus Torvalds struct xdr_stream xdr; 53121da177e4SLinus Torvalds struct compound_hdr hdr; 53131da177e4SLinus Torvalds int status; 53141da177e4SLinus Torvalds 53151da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 53161da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53171da177e4SLinus Torvalds if (!status) 53189b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 53199b7b9fccSAndy Adamson if (!status) 53201da177e4SLinus Torvalds status = decode_putfh(&xdr); 53211da177e4SLinus Torvalds if (!status) 5322d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 53231da177e4SLinus Torvalds return status; 53241da177e4SLinus Torvalds } 53251da177e4SLinus Torvalds 53261da177e4SLinus Torvalds /* 53271da177e4SLinus Torvalds * STATFS request 53281da177e4SLinus Torvalds */ 532924ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 533024ad148aSBenny Halevy struct nfs4_statfs_res *res) 53311da177e4SLinus Torvalds { 53321da177e4SLinus Torvalds struct xdr_stream xdr; 53331da177e4SLinus Torvalds struct compound_hdr hdr; 53341da177e4SLinus Torvalds int status; 53351da177e4SLinus Torvalds 53361da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 53371da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53381da177e4SLinus Torvalds if (!status) 53399b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 53409b7b9fccSAndy Adamson if (!status) 53411da177e4SLinus Torvalds status = decode_putfh(&xdr); 53421da177e4SLinus Torvalds if (!status) 534324ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 53441da177e4SLinus Torvalds return status; 53451da177e4SLinus Torvalds } 53461da177e4SLinus Torvalds 53471da177e4SLinus Torvalds /* 53481da177e4SLinus Torvalds * GETATTR_BITMAP request 53491da177e4SLinus Torvalds */ 53508687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 53511da177e4SLinus Torvalds { 53521da177e4SLinus Torvalds struct xdr_stream xdr; 53531da177e4SLinus Torvalds struct compound_hdr hdr; 53541da177e4SLinus Torvalds int status; 53551da177e4SLinus Torvalds 53561da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 53579b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 53589b7b9fccSAndy Adamson if (status) 53599b7b9fccSAndy Adamson goto out; 53609b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 53619b7b9fccSAndy Adamson if (status) 53621da177e4SLinus Torvalds goto out; 53631da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 53641da177e4SLinus Torvalds goto out; 53651da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 53661da177e4SLinus Torvalds out: 53671da177e4SLinus Torvalds return status; 53681da177e4SLinus Torvalds } 53691da177e4SLinus Torvalds 53701da177e4SLinus Torvalds /* 53711da177e4SLinus Torvalds * Decode RENEW response 53721da177e4SLinus Torvalds */ 53738687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 53741da177e4SLinus Torvalds { 53751da177e4SLinus Torvalds struct xdr_stream xdr; 53761da177e4SLinus Torvalds struct compound_hdr hdr; 53771da177e4SLinus Torvalds int status; 53781da177e4SLinus Torvalds 53791da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53801da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53811da177e4SLinus Torvalds if (!status) 53821da177e4SLinus Torvalds status = decode_renew(&xdr); 53831da177e4SLinus Torvalds return status; 53841da177e4SLinus Torvalds } 53851da177e4SLinus Torvalds 53861da177e4SLinus Torvalds /* 53871da177e4SLinus Torvalds * a SETCLIENTID request 53881da177e4SLinus Torvalds */ 53898687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5390adfa6f98SDavid Howells struct nfs_client *clp) 53911da177e4SLinus Torvalds { 53921da177e4SLinus Torvalds struct xdr_stream xdr; 53931da177e4SLinus Torvalds struct compound_hdr hdr; 53941da177e4SLinus Torvalds int status; 53951da177e4SLinus Torvalds 53961da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 53971da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53981da177e4SLinus Torvalds if (!status) 53991da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 54001da177e4SLinus Torvalds return status; 54011da177e4SLinus Torvalds } 54021da177e4SLinus Torvalds 54031da177e4SLinus Torvalds /* 54041da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 54051da177e4SLinus Torvalds */ 54068687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 54071da177e4SLinus Torvalds { 54081da177e4SLinus Torvalds struct xdr_stream xdr; 54091da177e4SLinus Torvalds struct compound_hdr hdr; 54101da177e4SLinus Torvalds int status; 54111da177e4SLinus Torvalds 54121da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54131da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54141da177e4SLinus Torvalds if (!status) 54151da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 54161da177e4SLinus Torvalds if (!status) 54171da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 54181da177e4SLinus Torvalds if (!status) 54191da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 54201da177e4SLinus Torvalds return status; 54211da177e4SLinus Torvalds } 54221da177e4SLinus Torvalds 54231da177e4SLinus Torvalds /* 54241da177e4SLinus Torvalds * DELEGRETURN request 54251da177e4SLinus Torvalds */ 54268687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 54271da177e4SLinus Torvalds { 54281da177e4SLinus Torvalds struct xdr_stream xdr; 54291da177e4SLinus Torvalds struct compound_hdr hdr; 54301da177e4SLinus Torvalds int status; 54311da177e4SLinus Torvalds 54321da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54331da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54349b7b9fccSAndy Adamson if (status) 54359b7b9fccSAndy Adamson goto out; 54369b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 54379b7b9fccSAndy Adamson if (status) 5438fa178f29STrond Myklebust goto out; 54391da177e4SLinus Torvalds status = decode_putfh(&xdr); 5440fa178f29STrond Myklebust if (status != 0) 5441fa178f29STrond Myklebust goto out; 54421da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5443fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 5444fa178f29STrond Myklebust out: 54451da177e4SLinus Torvalds return status; 54461da177e4SLinus Torvalds } 54471da177e4SLinus Torvalds 5448683b57b4STrond Myklebust /* 5449683b57b4STrond Myklebust * FS_LOCATIONS request 5450683b57b4STrond Myklebust */ 545122958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 545222958463SBenny Halevy struct nfs4_fs_locations_res *res) 5453683b57b4STrond Myklebust { 5454683b57b4STrond Myklebust struct xdr_stream xdr; 5455683b57b4STrond Myklebust struct compound_hdr hdr; 5456683b57b4STrond Myklebust int status; 5457683b57b4STrond Myklebust 5458683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5459683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 54609b7b9fccSAndy Adamson if (status) 54619b7b9fccSAndy Adamson goto out; 54629b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54639b7b9fccSAndy Adamson if (status) 5464683b57b4STrond Myklebust goto out; 5465683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5466683b57b4STrond Myklebust goto out; 5467683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5468683b57b4STrond Myklebust goto out; 5469683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 547022958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 547122958463SBenny Halevy res->fs_locations->server); 5472683b57b4STrond Myklebust out: 5473683b57b4STrond Myklebust return status; 5474683b57b4STrond Myklebust } 5475683b57b4STrond Myklebust 547699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 547799fe60d0SBenny Halevy /* 547899fe60d0SBenny Halevy * EXCHANGE_ID request 547999fe60d0SBenny Halevy */ 548099fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 548199fe60d0SBenny Halevy void *res) 548299fe60d0SBenny Halevy { 548399fe60d0SBenny Halevy struct xdr_stream xdr; 548499fe60d0SBenny Halevy struct compound_hdr hdr; 548599fe60d0SBenny Halevy int status; 548699fe60d0SBenny Halevy 548799fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 548899fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 548999fe60d0SBenny Halevy if (!status) 549099fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 549199fe60d0SBenny Halevy return status; 549299fe60d0SBenny Halevy } 54932050f0ccSAndy Adamson 54942050f0ccSAndy Adamson /* 5495fc931582SAndy Adamson * a CREATE_SESSION request 5496fc931582SAndy Adamson */ 5497fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5498fc931582SAndy Adamson struct nfs41_create_session_res *res) 5499fc931582SAndy Adamson { 5500fc931582SAndy Adamson struct xdr_stream xdr; 5501fc931582SAndy Adamson struct compound_hdr hdr; 5502fc931582SAndy Adamson int status; 5503fc931582SAndy Adamson 5504fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5505fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5506fc931582SAndy Adamson if (!status) 5507fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5508fc931582SAndy Adamson return status; 5509fc931582SAndy Adamson } 5510fc931582SAndy Adamson 5511fc931582SAndy Adamson /* 55120f3e66c6SAndy Adamson * a DESTROY_SESSION request 55130f3e66c6SAndy Adamson */ 55140f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 55150f3e66c6SAndy Adamson void *dummy) 55160f3e66c6SAndy Adamson { 55170f3e66c6SAndy Adamson struct xdr_stream xdr; 55180f3e66c6SAndy Adamson struct compound_hdr hdr; 55190f3e66c6SAndy Adamson int status; 55200f3e66c6SAndy Adamson 55210f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 55220f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 55230f3e66c6SAndy Adamson if (!status) 55240f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 55250f3e66c6SAndy Adamson return status; 55260f3e66c6SAndy Adamson } 55270f3e66c6SAndy Adamson 55280f3e66c6SAndy Adamson /* 5529fc01cea9SAndy Adamson * a SEQUENCE request 5530fc01cea9SAndy Adamson */ 5531fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 5532fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5533fc01cea9SAndy Adamson { 5534fc01cea9SAndy Adamson struct xdr_stream xdr; 5535fc01cea9SAndy Adamson struct compound_hdr hdr; 5536fc01cea9SAndy Adamson int status; 5537fc01cea9SAndy Adamson 5538fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5539fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5540fc01cea9SAndy Adamson if (!status) 5541fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 5542fc01cea9SAndy Adamson return status; 5543fc01cea9SAndy Adamson } 5544fc01cea9SAndy Adamson 5545fc01cea9SAndy Adamson /* 55462050f0ccSAndy Adamson * a GET_LEASE_TIME request 55472050f0ccSAndy Adamson */ 55482050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 55492050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 55502050f0ccSAndy Adamson { 55512050f0ccSAndy Adamson struct xdr_stream xdr; 55522050f0ccSAndy Adamson struct compound_hdr hdr; 55532050f0ccSAndy Adamson int status; 55542050f0ccSAndy Adamson 55552050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 55562050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 55572050f0ccSAndy Adamson if (!status) 55582050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 55592050f0ccSAndy Adamson if (!status) 55602050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 55612050f0ccSAndy Adamson if (!status) 55622050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 55632050f0ccSAndy Adamson return status; 55642050f0ccSAndy Adamson } 556599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 556699fe60d0SBenny Halevy 55670dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 55681da177e4SLinus Torvalds { 55691da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 55701da177e4SLinus Torvalds uint32_t len; 55711da177e4SLinus Torvalds 55721da177e4SLinus Torvalds if (!*p++) { 55731da177e4SLinus Torvalds if (!*p) 55741da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 55751da177e4SLinus Torvalds entry->eof = 1; 55761da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 55771da177e4SLinus Torvalds } 55781da177e4SLinus Torvalds 55791da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 55801da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 55811da177e4SLinus Torvalds entry->len = ntohl(*p++); 55821da177e4SLinus Torvalds entry->name = (const char *) p; 55831da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 55841da177e4SLinus Torvalds 55851da177e4SLinus Torvalds /* 55861da177e4SLinus Torvalds * In case the server doesn't return an inode number, 55871da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 55881da177e4SLinus Torvalds * since glibc seems to choke on it...) 55891da177e4SLinus Torvalds */ 55901da177e4SLinus Torvalds entry->ino = 1; 55911da177e4SLinus Torvalds 55921da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 55931da177e4SLinus Torvalds if (len-- > 0) { 55941da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 55951da177e4SLinus Torvalds if (len-- > 0) { 55961da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 55971da177e4SLinus Torvalds p += len; 55981da177e4SLinus Torvalds } 55991da177e4SLinus Torvalds } 56001da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 56011da177e4SLinus Torvalds if (len > 0) { 560297d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 560397d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 560497d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 560597d312d0SManoj Naik p++; 560697d312d0SManoj Naik len--; 560797d312d0SManoj Naik } 56081da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 56091da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 56101da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 56111da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 56121da177e4SLinus Torvalds p += len; 56131da177e4SLinus Torvalds } 56141da177e4SLinus Torvalds 56151da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 56161da177e4SLinus Torvalds return p; 56171da177e4SLinus Torvalds } 56181da177e4SLinus Torvalds 56191da177e4SLinus Torvalds /* 56201da177e4SLinus Torvalds * We need to translate between nfs status return values and 56211da177e4SLinus Torvalds * the local errno values which may not be the same. 56221da177e4SLinus Torvalds */ 56231da177e4SLinus Torvalds static struct { 56241da177e4SLinus Torvalds int stat; 56251da177e4SLinus Torvalds int errno; 56261da177e4SLinus Torvalds } nfs_errtbl[] = { 56271da177e4SLinus Torvalds { NFS4_OK, 0 }, 5628856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5629856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5630856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5631856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5632856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5633856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5634856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5635856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5636856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5637856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5638856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5639856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5640856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5641856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5642856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5643856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5644856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5645856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5646856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5647856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5648856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5649856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5650856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5651856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5652856dff3dSBenny Halevy { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, 5653856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5654856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5655856dff3dSBenny Halevy { NFS4ERR_RESOURCE, -EREMOTEIO }, 5656856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5657856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5658856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5659856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 56601da177e4SLinus Torvalds * to be handled by a 56611da177e4SLinus Torvalds * middle-layer. 56621da177e4SLinus Torvalds */ 5663856dff3dSBenny Halevy { -1, -EIO } 56641da177e4SLinus Torvalds }; 56651da177e4SLinus Torvalds 56661da177e4SLinus Torvalds /* 56671da177e4SLinus Torvalds * Convert an NFS error code to a local one. 56681da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 56691da177e4SLinus Torvalds */ 56701da177e4SLinus Torvalds static int 56710a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 56721da177e4SLinus Torvalds { 56731da177e4SLinus Torvalds int i; 56741da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 56751da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 56761da177e4SLinus Torvalds return nfs_errtbl[i].errno; 56771da177e4SLinus Torvalds } 56781da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 56791da177e4SLinus Torvalds /* The server is looney tunes. */ 5680856dff3dSBenny Halevy return -ESERVERFAULT; 56811da177e4SLinus Torvalds } 56821da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 56831da177e4SLinus Torvalds * handle it. 56841da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 56851da177e4SLinus Torvalds * not conflict with native Linux error codes. 56861da177e4SLinus Torvalds */ 5687856dff3dSBenny Halevy return -stat; 56881da177e4SLinus Torvalds } 56891da177e4SLinus Torvalds 56901da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 56911da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 56921da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 56931da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 56941da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 56952bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 56962bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5697cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5698cc0175c1SChuck Lever .p_name = #proc, \ 56991da177e4SLinus Torvalds } 57001da177e4SLinus Torvalds 57011da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 57021da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 57031da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 57041da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 57051da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 57061da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 57071da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 57081da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 57091da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 57101da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 57111da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 57121da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 57131da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 57141da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 57151da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 57161da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 57171da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 57181da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 57191da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 57201da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 57211da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 57221da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 57231da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 57241da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 57251da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 57261da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 57271da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 57281da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 57291da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 57301da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 57311da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 57321da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5733029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 573423ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5735683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 573699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 573799fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5738fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 57390f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 5740fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 57412050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 574299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 57431da177e4SLinus Torvalds }; 57441da177e4SLinus Torvalds 57451da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 57461da177e4SLinus Torvalds .number = 4, 5747e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 57481da177e4SLinus Torvalds .procs = nfs4_procedures 57491da177e4SLinus Torvalds }; 57501da177e4SLinus Torvalds 57511da177e4SLinus Torvalds /* 57521da177e4SLinus Torvalds * Local variables: 57531da177e4SLinus Torvalds * c-basic-offset: 8 57541da177e4SLinus Torvalds * End: 57551da177e4SLinus Torvalds */ 5756