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 7051da177e4SLinus Torvalds /* 7061da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 7071da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 7081da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 7091da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 7101da177e4SLinus Torvalds * 7111da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 7121da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 7131da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 7141da177e4SLinus Torvalds */ 7151da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 7161da177e4SLinus Torvalds #define WRITE64(n) do { \ 7171da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 7181da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 7191da177e4SLinus Torvalds } while (0) 7201da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 7211da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 7221da177e4SLinus Torvalds } while (0) 7231da177e4SLinus Torvalds 7241da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 7251da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 7261da177e4SLinus Torvalds BUG_ON(!p); \ 7271da177e4SLinus Torvalds } while (0) 7281da177e4SLinus Torvalds 7291da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7301da177e4SLinus Torvalds { 7318687b63aSAl Viro __be32 *p; 7321da177e4SLinus Torvalds 7331da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7341da177e4SLinus Torvalds BUG_ON(p == NULL); 7351da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7361da177e4SLinus Torvalds } 7371da177e4SLinus Torvalds 7380c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7390c4e8c18SBenny Halevy struct rpc_rqst *req, 7400c4e8c18SBenny Halevy struct compound_hdr *hdr) 7411da177e4SLinus Torvalds { 7428687b63aSAl Viro __be32 *p; 7430c4e8c18SBenny Halevy struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 7440c4e8c18SBenny Halevy 7450c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7460c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7470c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7480c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7491da177e4SLinus Torvalds 7501da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7511da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 7521da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 7531da177e4SLinus Torvalds WRITE32(hdr->taglen); 7541da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 75566cc0429SBenny Halevy WRITE32(hdr->minorversion); 756d017931cSAndy Adamson hdr->nops_p = p; 7571da177e4SLinus Torvalds WRITE32(hdr->nops); 758d017931cSAndy Adamson } 759d017931cSAndy Adamson 760d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 761d017931cSAndy Adamson { 762fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 763d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 7641da177e4SLinus Torvalds } 7651da177e4SLinus Torvalds 7661da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 7671da177e4SLinus Torvalds { 7688687b63aSAl Viro __be32 *p; 7691da177e4SLinus Torvalds 7701da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 7711da177e4SLinus Torvalds BUG_ON(p == NULL); 7721da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 7731da177e4SLinus Torvalds } 7741da177e4SLinus Torvalds 775cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 7761da177e4SLinus Torvalds { 7771da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 7781da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 7791da177e4SLinus Torvalds int owner_namelen = 0; 7801da177e4SLinus Torvalds int owner_grouplen = 0; 7818687b63aSAl Viro __be32 *p; 7828687b63aSAl Viro __be32 *q; 7831da177e4SLinus Torvalds int len; 7841da177e4SLinus Torvalds uint32_t bmval0 = 0; 7851da177e4SLinus Torvalds uint32_t bmval1 = 0; 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds /* 7881da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 7891da177e4SLinus Torvalds * In the worst-case, this would be 7901da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 7911da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 79223ec6965SJ. Bruce Fields * such as owner/group. 7931da177e4SLinus Torvalds */ 7941da177e4SLinus Torvalds len = 16; 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds /* Sigh */ 7971da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 7981da177e4SLinus Torvalds len += 8; 7991da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 8001da177e4SLinus Torvalds len += 4; 8011da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8027539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 8031da177e4SLinus Torvalds if (owner_namelen < 0) { 804fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 8051da177e4SLinus Torvalds iap->ia_uid); 8061da177e4SLinus Torvalds /* XXX */ 8071da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 8081da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8091da177e4SLinus Torvalds /* goto out; */ 8101da177e4SLinus Torvalds } 8111da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8121da177e4SLinus Torvalds } 8131da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8147539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 8151da177e4SLinus Torvalds if (owner_grouplen < 0) { 816fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8171da177e4SLinus Torvalds iap->ia_gid); 8181da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8191da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8201da177e4SLinus Torvalds /* goto out; */ 8211da177e4SLinus Torvalds } 8221da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8231da177e4SLinus Torvalds } 8241da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8251da177e4SLinus Torvalds len += 16; 8261da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8271da177e4SLinus Torvalds len += 4; 8281da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8291da177e4SLinus Torvalds len += 16; 8301da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8311da177e4SLinus Torvalds len += 4; 8321da177e4SLinus Torvalds RESERVE_SPACE(len); 8331da177e4SLinus Torvalds 8341da177e4SLinus Torvalds /* 8351da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8361da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8371da177e4SLinus Torvalds */ 8381da177e4SLinus Torvalds WRITE32(2); 8391da177e4SLinus Torvalds q = p; 8401da177e4SLinus Torvalds p += 3; 8411da177e4SLinus Torvalds 8421da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8431da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 8441da177e4SLinus Torvalds WRITE64(iap->ia_size); 8451da177e4SLinus Torvalds } 8461da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8471da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 848cf3fff54STrond Myklebust WRITE32(iap->ia_mode & S_IALLUGO); 8491da177e4SLinus Torvalds } 8501da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8511da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 8521da177e4SLinus Torvalds WRITE32(owner_namelen); 8531da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 8541da177e4SLinus Torvalds } 8551da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8561da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 8571da177e4SLinus Torvalds WRITE32(owner_grouplen); 8581da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 8591da177e4SLinus Torvalds } 8601da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 8611da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 8621da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 8631da177e4SLinus Torvalds WRITE32(0); 8641da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 8651da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 8661da177e4SLinus Torvalds } 8671da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 8681da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 8691da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 8701da177e4SLinus Torvalds } 8711da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 8721da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 8731da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 8741da177e4SLinus Torvalds WRITE32(0); 8751da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 8761da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 8771da177e4SLinus Torvalds } 8781da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 8791da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 8801da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 8811da177e4SLinus Torvalds } 8821da177e4SLinus Torvalds 8831da177e4SLinus Torvalds /* 8841da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 8851da177e4SLinus Torvalds */ 8861da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 887fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 8881da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 8891da177e4SLinus Torvalds BUG(); 8901da177e4SLinus Torvalds } 8911da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 8921da177e4SLinus Torvalds *q++ = htonl(bmval0); 8931da177e4SLinus Torvalds *q++ = htonl(bmval1); 8941da177e4SLinus Torvalds *q++ = htonl(len); 8951da177e4SLinus Torvalds 8961da177e4SLinus Torvalds /* out: */ 8971da177e4SLinus Torvalds } 8981da177e4SLinus Torvalds 899cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 9001da177e4SLinus Torvalds { 9018687b63aSAl Viro __be32 *p; 9021da177e4SLinus Torvalds 9031da177e4SLinus Torvalds RESERVE_SPACE(8); 9041da177e4SLinus Torvalds WRITE32(OP_ACCESS); 9051da177e4SLinus Torvalds WRITE32(access); 906d017931cSAndy Adamson hdr->nops++; 907dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 9081da177e4SLinus Torvalds } 9091da177e4SLinus Torvalds 910cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9111da177e4SLinus Torvalds { 9128687b63aSAl Viro __be32 *p; 9131da177e4SLinus Torvalds 9148ae20abdSTrond Myklebust RESERVE_SPACE(8+NFS4_STATEID_SIZE); 9151da177e4SLinus Torvalds WRITE32(OP_CLOSE); 916cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 9178ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 918d017931cSAndy Adamson hdr->nops++; 919dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9201da177e4SLinus Torvalds } 9211da177e4SLinus Torvalds 922cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9231da177e4SLinus Torvalds { 9248687b63aSAl Viro __be32 *p; 9251da177e4SLinus Torvalds 9261da177e4SLinus Torvalds RESERVE_SPACE(16); 9271da177e4SLinus Torvalds WRITE32(OP_COMMIT); 9281da177e4SLinus Torvalds WRITE64(args->offset); 9291da177e4SLinus Torvalds WRITE32(args->count); 930d017931cSAndy Adamson hdr->nops++; 931dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9321da177e4SLinus Torvalds } 9331da177e4SLinus Torvalds 934cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9351da177e4SLinus Torvalds { 9368687b63aSAl Viro __be32 *p; 9371da177e4SLinus Torvalds 9381da177e4SLinus Torvalds RESERVE_SPACE(8); 9391da177e4SLinus Torvalds WRITE32(OP_CREATE); 9401da177e4SLinus Torvalds WRITE32(create->ftype); 9411da177e4SLinus Torvalds 9421da177e4SLinus Torvalds switch (create->ftype) { 9431da177e4SLinus Torvalds case NF4LNK: 94494a6d753SChuck Lever RESERVE_SPACE(4); 94594a6d753SChuck Lever WRITE32(create->u.symlink.len); 94694a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9471da177e4SLinus Torvalds break; 9481da177e4SLinus Torvalds 9491da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 9501da177e4SLinus Torvalds RESERVE_SPACE(8); 9511da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 9521da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 9531da177e4SLinus Torvalds break; 9541da177e4SLinus Torvalds 9551da177e4SLinus Torvalds default: 9561da177e4SLinus Torvalds break; 9571da177e4SLinus Torvalds } 9581da177e4SLinus Torvalds 9591da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 9601da177e4SLinus Torvalds WRITE32(create->name->len); 9611da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 962d017931cSAndy Adamson hdr->nops++; 963dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 9641da177e4SLinus Torvalds 965cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 9661da177e4SLinus Torvalds } 9671da177e4SLinus Torvalds 968cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 9691da177e4SLinus Torvalds { 9708687b63aSAl Viro __be32 *p; 9711da177e4SLinus Torvalds 9721da177e4SLinus Torvalds RESERVE_SPACE(12); 9731da177e4SLinus Torvalds WRITE32(OP_GETATTR); 9741da177e4SLinus Torvalds WRITE32(1); 9751da177e4SLinus Torvalds WRITE32(bitmap); 976d017931cSAndy Adamson hdr->nops++; 977dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9781da177e4SLinus Torvalds } 9791da177e4SLinus Torvalds 980cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 9811da177e4SLinus Torvalds { 9828687b63aSAl Viro __be32 *p; 9831da177e4SLinus Torvalds 9841da177e4SLinus Torvalds RESERVE_SPACE(16); 9851da177e4SLinus Torvalds WRITE32(OP_GETATTR); 9861da177e4SLinus Torvalds WRITE32(2); 9871da177e4SLinus Torvalds WRITE32(bm0); 9881da177e4SLinus Torvalds WRITE32(bm1); 989d017931cSAndy Adamson hdr->nops++; 990dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9911da177e4SLinus Torvalds } 9921da177e4SLinus Torvalds 993cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9941da177e4SLinus Torvalds { 995cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 996d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 9971da177e4SLinus Torvalds } 9981da177e4SLinus Torvalds 999cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10001da177e4SLinus Torvalds { 1001cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 1002d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 10031da177e4SLinus Torvalds } 10041da177e4SLinus Torvalds 1005cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1006830b8e33SManoj Naik { 1007cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1008cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1009830b8e33SManoj Naik } 1010830b8e33SManoj Naik 1011cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10121da177e4SLinus Torvalds { 10138687b63aSAl Viro __be32 *p; 10141da177e4SLinus Torvalds 10151da177e4SLinus Torvalds RESERVE_SPACE(4); 10161da177e4SLinus Torvalds WRITE32(OP_GETFH); 1017d017931cSAndy Adamson hdr->nops++; 1018dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10191da177e4SLinus Torvalds } 10201da177e4SLinus Torvalds 1021cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10221da177e4SLinus Torvalds { 10238687b63aSAl Viro __be32 *p; 10241da177e4SLinus Torvalds 10251da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 10261da177e4SLinus Torvalds WRITE32(OP_LINK); 10271da177e4SLinus Torvalds WRITE32(name->len); 10281da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 1029d017931cSAndy Adamson hdr->nops++; 1030dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10311da177e4SLinus Torvalds } 10321da177e4SLinus Torvalds 1033911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1034911d1aafSTrond Myklebust { 1035911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1036911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1037911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1038911d1aafSTrond Myklebust } 1039911d1aafSTrond Myklebust 1040911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1041911d1aafSTrond Myklebust { 1042911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1043911d1aafSTrond Myklebust return ~(uint64_t)0; 1044911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1045911d1aafSTrond Myklebust } 1046911d1aafSTrond Myklebust 10471da177e4SLinus Torvalds /* 10481da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 10491da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 10501da177e4SLinus Torvalds */ 1051cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 10521da177e4SLinus Torvalds { 10538687b63aSAl Viro __be32 *p; 10541da177e4SLinus Torvalds 10551da177e4SLinus Torvalds RESERVE_SPACE(32); 10561da177e4SLinus Torvalds WRITE32(OP_LOCK); 1057911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, args->block)); 1058911d1aafSTrond Myklebust WRITE32(args->reclaim); 1059911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 1060911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 1061911d1aafSTrond Myklebust WRITE32(args->new_lock_owner); 1062911d1aafSTrond Myklebust if (args->new_lock_owner){ 10639f958ab8STrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 1064911d1aafSTrond Myklebust WRITE32(args->open_seqid->sequence->counter); 10658ae20abdSTrond Myklebust WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 1066911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 1067911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 10689f958ab8STrond Myklebust WRITE32(16); 10699f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 10709f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 10711da177e4SLinus Torvalds } 10721da177e4SLinus Torvalds else { 10738ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE+4); 10748ae20abdSTrond Myklebust WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 1075911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 10761da177e4SLinus Torvalds } 1077d017931cSAndy Adamson hdr->nops++; 1078dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 10791da177e4SLinus Torvalds } 10801da177e4SLinus Torvalds 1081cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 10821da177e4SLinus Torvalds { 10838687b63aSAl Viro __be32 *p; 10841da177e4SLinus Torvalds 10859f958ab8STrond Myklebust RESERVE_SPACE(52); 10861da177e4SLinus Torvalds WRITE32(OP_LOCKT); 1087911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 1088911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 1089911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 1090911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 10919f958ab8STrond Myklebust WRITE32(16); 10929f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 10939f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 1094d017931cSAndy Adamson hdr->nops++; 1095dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 10961da177e4SLinus Torvalds } 10971da177e4SLinus Torvalds 1098cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 10991da177e4SLinus Torvalds { 11008687b63aSAl Viro __be32 *p; 11011da177e4SLinus Torvalds 11028ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 11031da177e4SLinus Torvalds WRITE32(OP_LOCKU); 1104911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 1105911d1aafSTrond Myklebust WRITE32(args->seqid->sequence->counter); 11068ae20abdSTrond Myklebust WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 1107911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 1108911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 1109d017931cSAndy Adamson hdr->nops++; 1110dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11111da177e4SLinus Torvalds } 11121da177e4SLinus Torvalds 1113cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11141da177e4SLinus Torvalds { 11151da177e4SLinus Torvalds int len = name->len; 11168687b63aSAl Viro __be32 *p; 11171da177e4SLinus Torvalds 11181da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 11191da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 11201da177e4SLinus Torvalds WRITE32(len); 11211da177e4SLinus Torvalds WRITEMEM(name->name, len); 1122d017931cSAndy Adamson hdr->nops++; 1123dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11241da177e4SLinus Torvalds } 11251da177e4SLinus Torvalds 1126dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11271da177e4SLinus Torvalds { 11288687b63aSAl Viro __be32 *p; 11291da177e4SLinus Torvalds 11301da177e4SLinus Torvalds RESERVE_SPACE(8); 1131dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11321da177e4SLinus Torvalds case FMODE_READ: 11331da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 11341da177e4SLinus Torvalds break; 11351da177e4SLinus Torvalds case FMODE_WRITE: 11361da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 11371da177e4SLinus Torvalds break; 11381da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 11391da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 11401da177e4SLinus Torvalds break; 11411da177e4SLinus Torvalds default: 1142dc0b027dSTrond Myklebust WRITE32(0); 11431da177e4SLinus Torvalds } 11441da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 11451da177e4SLinus Torvalds } 11461da177e4SLinus Torvalds 11471da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11481da177e4SLinus Torvalds { 11498687b63aSAl Viro __be32 *p; 11501da177e4SLinus Torvalds /* 11511da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 11521da177e4SLinus Torvalds * owner 4 = 32 11531da177e4SLinus Torvalds */ 11541da177e4SLinus Torvalds RESERVE_SPACE(8); 11551da177e4SLinus Torvalds WRITE32(OP_OPEN); 1156cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1157dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 11589f958ab8STrond Myklebust RESERVE_SPACE(28); 11591da177e4SLinus Torvalds WRITE64(arg->clientid); 11609f958ab8STrond Myklebust WRITE32(16); 11619f958ab8STrond Myklebust WRITEMEM("open id:", 8); 11629f958ab8STrond Myklebust WRITE64(arg->id); 11631da177e4SLinus Torvalds } 11641da177e4SLinus Torvalds 11651da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11661da177e4SLinus Torvalds { 11678687b63aSAl Viro __be32 *p; 11681da177e4SLinus Torvalds 11691da177e4SLinus Torvalds RESERVE_SPACE(4); 11701da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 11711da177e4SLinus Torvalds case 0: 11721da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 11731da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 11741da177e4SLinus Torvalds break; 11751da177e4SLinus Torvalds default: 11761da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 11771da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 11781da177e4SLinus Torvalds } 11791da177e4SLinus Torvalds } 11801da177e4SLinus Torvalds 11811da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11821da177e4SLinus Torvalds { 11838687b63aSAl Viro __be32 *p; 11841da177e4SLinus Torvalds 11851da177e4SLinus Torvalds RESERVE_SPACE(4); 11861da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 11871da177e4SLinus Torvalds case 0: 11881da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 11891da177e4SLinus Torvalds break; 11901da177e4SLinus Torvalds default: 11911da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 11921da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 11931da177e4SLinus Torvalds encode_createmode(xdr, arg); 11941da177e4SLinus Torvalds } 11951da177e4SLinus Torvalds } 11961da177e4SLinus Torvalds 1197bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 11981da177e4SLinus Torvalds { 11998687b63aSAl Viro __be32 *p; 12001da177e4SLinus Torvalds 12011da177e4SLinus Torvalds RESERVE_SPACE(4); 12021da177e4SLinus Torvalds switch (delegation_type) { 12031da177e4SLinus Torvalds case 0: 12041da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 12051da177e4SLinus Torvalds break; 12061da177e4SLinus Torvalds case FMODE_READ: 12071da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 12081da177e4SLinus Torvalds break; 12091da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 12101da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 12111da177e4SLinus Torvalds break; 12121da177e4SLinus Torvalds default: 12131da177e4SLinus Torvalds BUG(); 12141da177e4SLinus Torvalds } 12151da177e4SLinus Torvalds } 12161da177e4SLinus Torvalds 12171da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12181da177e4SLinus Torvalds { 12198687b63aSAl Viro __be32 *p; 12201da177e4SLinus Torvalds 12211da177e4SLinus Torvalds RESERVE_SPACE(4); 12221da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 12231da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12241da177e4SLinus Torvalds } 12251da177e4SLinus Torvalds 1226bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12271da177e4SLinus Torvalds { 12288687b63aSAl Viro __be32 *p; 12291da177e4SLinus Torvalds 12301da177e4SLinus Torvalds RESERVE_SPACE(4); 12311da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 12321da177e4SLinus Torvalds encode_delegation_type(xdr, type); 12331da177e4SLinus Torvalds } 12341da177e4SLinus Torvalds 12351da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 12361da177e4SLinus Torvalds { 12378687b63aSAl Viro __be32 *p; 12381da177e4SLinus Torvalds 12398ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 12401da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 12418ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 12421da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12431da177e4SLinus Torvalds } 12441da177e4SLinus Torvalds 1245cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 12461da177e4SLinus Torvalds { 12471da177e4SLinus Torvalds encode_openhdr(xdr, arg); 12481da177e4SLinus Torvalds encode_opentype(xdr, arg); 12491da177e4SLinus Torvalds switch (arg->claim) { 12501da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 12511da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 12521da177e4SLinus Torvalds break; 12531da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 12541da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 12551da177e4SLinus Torvalds break; 12561da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 12571da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 12581da177e4SLinus Torvalds break; 12591da177e4SLinus Torvalds default: 12601da177e4SLinus Torvalds BUG(); 12611da177e4SLinus Torvalds } 1262d017931cSAndy Adamson hdr->nops++; 1263dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 12641da177e4SLinus Torvalds } 12651da177e4SLinus Torvalds 1266cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 12671da177e4SLinus Torvalds { 12688687b63aSAl Viro __be32 *p; 12691da177e4SLinus Torvalds 12708ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 12711da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 12728ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1273cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1274d017931cSAndy Adamson hdr->nops++; 1275dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 12761da177e4SLinus Torvalds } 12771da177e4SLinus Torvalds 1278cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 12791da177e4SLinus Torvalds { 12808687b63aSAl Viro __be32 *p; 12811da177e4SLinus Torvalds 12828ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 12831da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 12848ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1285cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1286dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1287d017931cSAndy Adamson hdr->nops++; 1288dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 12891da177e4SLinus Torvalds } 12901da177e4SLinus Torvalds 1291cf8cdbe5SAndy Adamson static void 1292d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 12931da177e4SLinus Torvalds { 12941da177e4SLinus Torvalds int len = fh->size; 12958687b63aSAl Viro __be32 *p; 12961da177e4SLinus Torvalds 12971da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 12981da177e4SLinus Torvalds WRITE32(OP_PUTFH); 12991da177e4SLinus Torvalds WRITE32(len); 13001da177e4SLinus Torvalds WRITEMEM(fh->data, len); 1301d017931cSAndy Adamson hdr->nops++; 1302dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 13031da177e4SLinus Torvalds } 13041da177e4SLinus Torvalds 1305cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 13061da177e4SLinus Torvalds { 13078687b63aSAl Viro __be32 *p; 13081da177e4SLinus Torvalds 13091da177e4SLinus Torvalds RESERVE_SPACE(4); 13101da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 1311d017931cSAndy Adamson hdr->nops++; 1312dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13131da177e4SLinus Torvalds } 13141da177e4SLinus Torvalds 13151da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 13161da177e4SLinus Torvalds { 13171da177e4SLinus Torvalds nfs4_stateid stateid; 13188687b63aSAl Viro __be32 *p; 13191da177e4SLinus Torvalds 13208ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE); 13211da177e4SLinus Torvalds if (ctx->state != NULL) { 13221da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 13238ae20abdSTrond Myklebust WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 13241da177e4SLinus Torvalds } else 13258ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 13261da177e4SLinus Torvalds } 13271da177e4SLinus Torvalds 1328cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13291da177e4SLinus Torvalds { 13308687b63aSAl Viro __be32 *p; 13311da177e4SLinus Torvalds 13321da177e4SLinus Torvalds RESERVE_SPACE(4); 13331da177e4SLinus Torvalds WRITE32(OP_READ); 13341da177e4SLinus Torvalds 13351da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13361da177e4SLinus Torvalds 13371da177e4SLinus Torvalds RESERVE_SPACE(12); 13381da177e4SLinus Torvalds WRITE64(args->offset); 13391da177e4SLinus Torvalds WRITE32(args->count); 1340d017931cSAndy Adamson hdr->nops++; 1341dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 13421da177e4SLinus Torvalds } 13431da177e4SLinus Torvalds 1344cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 13451da177e4SLinus Torvalds { 134697d312d0SManoj Naik uint32_t attrs[2] = { 134797d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 134897d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 134997d312d0SManoj Naik }; 13508687b63aSAl Viro __be32 *p; 13511da177e4SLinus Torvalds 13528ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 13531da177e4SLinus Torvalds WRITE32(OP_READDIR); 13541da177e4SLinus Torvalds WRITE64(readdir->cookie); 13558ae20abdSTrond Myklebust WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 13561da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 13571da177e4SLinus Torvalds WRITE32(readdir->count); 13581da177e4SLinus Torvalds WRITE32(2); 135997d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 136097d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 136197d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 136297d312d0SManoj Naik else 136397d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 136497d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 136597d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1366d017931cSAndy Adamson hdr->nops++; 1367dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 136844109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 136944109241SFred Isaman __func__, 1370eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1371eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1372eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1373eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1374eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 13751da177e4SLinus Torvalds } 13761da177e4SLinus Torvalds 1377cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 13781da177e4SLinus Torvalds { 13798687b63aSAl Viro __be32 *p; 13801da177e4SLinus Torvalds 13811da177e4SLinus Torvalds RESERVE_SPACE(4); 13821da177e4SLinus Torvalds WRITE32(OP_READLINK); 1383d017931cSAndy Adamson hdr->nops++; 1384dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 13851da177e4SLinus Torvalds } 13861da177e4SLinus Torvalds 1387cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13881da177e4SLinus Torvalds { 13898687b63aSAl Viro __be32 *p; 13901da177e4SLinus Torvalds 13911da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 13921da177e4SLinus Torvalds WRITE32(OP_REMOVE); 13931da177e4SLinus Torvalds WRITE32(name->len); 13941da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 1395d017931cSAndy Adamson hdr->nops++; 1396dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 13971da177e4SLinus Torvalds } 13981da177e4SLinus Torvalds 1399cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 14001da177e4SLinus Torvalds { 14018687b63aSAl Viro __be32 *p; 14021da177e4SLinus Torvalds 14031da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 14041da177e4SLinus Torvalds WRITE32(OP_RENAME); 14051da177e4SLinus Torvalds WRITE32(oldname->len); 14061da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 14071da177e4SLinus Torvalds 14081da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 14091da177e4SLinus Torvalds WRITE32(newname->len); 14101da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 1411d017931cSAndy Adamson hdr->nops++; 1412dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14131da177e4SLinus Torvalds } 14141da177e4SLinus Torvalds 1415cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14161da177e4SLinus Torvalds { 14178687b63aSAl Viro __be32 *p; 14181da177e4SLinus Torvalds 14191da177e4SLinus Torvalds RESERVE_SPACE(12); 14201da177e4SLinus Torvalds WRITE32(OP_RENEW); 14211da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 1422d017931cSAndy Adamson hdr->nops++; 1423dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 14241da177e4SLinus Torvalds } 14251da177e4SLinus Torvalds 1426cf8cdbe5SAndy Adamson static void 1427d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 142856ae19f3STrond Myklebust { 14298687b63aSAl Viro __be32 *p; 143056ae19f3STrond Myklebust 143156ae19f3STrond Myklebust RESERVE_SPACE(4); 143256ae19f3STrond Myklebust WRITE32(OP_RESTOREFH); 1433d017931cSAndy Adamson hdr->nops++; 1434dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 143556ae19f3STrond Myklebust } 143656ae19f3STrond Myklebust 143756ae19f3STrond Myklebust static int 1438d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 143923ec6965SJ. Bruce Fields { 14408687b63aSAl Viro __be32 *p; 144123ec6965SJ. Bruce Fields 14428ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 144323ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 14448ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 144523ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 144623ec6965SJ. Bruce Fields WRITE32(1); 144723ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 144823ec6965SJ. Bruce Fields if (arg->acl_len % 4) 144923ec6965SJ. Bruce Fields return -EINVAL; 145023ec6965SJ. Bruce Fields RESERVE_SPACE(4); 145123ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 145223ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1453d017931cSAndy Adamson hdr->nops++; 1454dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 145523ec6965SJ. Bruce Fields return 0; 145623ec6965SJ. Bruce Fields } 145723ec6965SJ. Bruce Fields 1458cf8cdbe5SAndy Adamson static void 1459d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14601da177e4SLinus Torvalds { 14618687b63aSAl Viro __be32 *p; 14621da177e4SLinus Torvalds 14631da177e4SLinus Torvalds RESERVE_SPACE(4); 14641da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 1465d017931cSAndy Adamson hdr->nops++; 1466dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 14671da177e4SLinus Torvalds } 14681da177e4SLinus Torvalds 1469cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 14701da177e4SLinus Torvalds { 14718687b63aSAl Viro __be32 *p; 14721da177e4SLinus Torvalds 14738ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 14741da177e4SLinus Torvalds WRITE32(OP_SETATTR); 14758ae20abdSTrond Myklebust WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 1476d017931cSAndy Adamson hdr->nops++; 1477dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1478cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 14791da177e4SLinus Torvalds } 14801da177e4SLinus Torvalds 1481cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 14821da177e4SLinus Torvalds { 14838687b63aSAl Viro __be32 *p; 14841da177e4SLinus Torvalds 14858ae20abdSTrond Myklebust RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 14861da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 14878ae20abdSTrond Myklebust WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 14881da177e4SLinus Torvalds 14891da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 14901da177e4SLinus Torvalds RESERVE_SPACE(4); 14911da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 14921da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 14931da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 14941da177e4SLinus Torvalds RESERVE_SPACE(4); 14951da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 1496d017931cSAndy Adamson hdr->nops++; 1497dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 14981da177e4SLinus Torvalds } 14991da177e4SLinus Torvalds 1500cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 15011da177e4SLinus Torvalds { 15028687b63aSAl Viro __be32 *p; 15031da177e4SLinus Torvalds 15048ae20abdSTrond Myklebust RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 15051da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 15061da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 15078ae20abdSTrond Myklebust WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1508d017931cSAndy Adamson hdr->nops++; 1509dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15101da177e4SLinus Torvalds } 15111da177e4SLinus Torvalds 1512cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15131da177e4SLinus Torvalds { 15148687b63aSAl Viro __be32 *p; 15151da177e4SLinus Torvalds 15161da177e4SLinus Torvalds RESERVE_SPACE(4); 15171da177e4SLinus Torvalds WRITE32(OP_WRITE); 15181da177e4SLinus Torvalds 15191da177e4SLinus Torvalds encode_stateid(xdr, args->context); 15201da177e4SLinus Torvalds 15211da177e4SLinus Torvalds RESERVE_SPACE(16); 15221da177e4SLinus Torvalds WRITE64(args->offset); 15231da177e4SLinus Torvalds WRITE32(args->stable); 15241da177e4SLinus Torvalds WRITE32(args->count); 15251da177e4SLinus Torvalds 15261da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1527d017931cSAndy Adamson hdr->nops++; 1528dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 15291da177e4SLinus Torvalds } 15301da177e4SLinus Torvalds 1531cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15321da177e4SLinus Torvalds { 15338687b63aSAl Viro __be32 *p; 15341da177e4SLinus Torvalds 15358ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 15361da177e4SLinus Torvalds 15371da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 15388ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1539d017931cSAndy Adamson hdr->nops++; 1540dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15411da177e4SLinus Torvalds } 15429b7b9fccSAndy Adamson 154399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15449b7b9fccSAndy Adamson /* NFSv4.1 operations */ 154599fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 154699fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 154799fe60d0SBenny Halevy struct compound_hdr *hdr) 154899fe60d0SBenny Halevy { 154999fe60d0SBenny Halevy __be32 *p; 155099fe60d0SBenny Halevy 155199fe60d0SBenny Halevy RESERVE_SPACE(4 + sizeof(args->verifier->data)); 155299fe60d0SBenny Halevy WRITE32(OP_EXCHANGE_ID); 155399fe60d0SBenny Halevy WRITEMEM(args->verifier->data, sizeof(args->verifier->data)); 155499fe60d0SBenny Halevy 155599fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 155699fe60d0SBenny Halevy 155799fe60d0SBenny Halevy RESERVE_SPACE(12); 155899fe60d0SBenny Halevy WRITE32(args->flags); 155999fe60d0SBenny Halevy WRITE32(0); /* zero length state_protect4_a */ 156099fe60d0SBenny Halevy WRITE32(0); /* zero length implementation id array */ 156199fe60d0SBenny Halevy hdr->nops++; 156299fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 156399fe60d0SBenny Halevy } 1564fc931582SAndy Adamson 1565fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1566fc931582SAndy Adamson struct nfs41_create_session_args *args, 1567fc931582SAndy Adamson struct compound_hdr *hdr) 1568fc931582SAndy Adamson { 1569fc931582SAndy Adamson __be32 *p; 1570fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1571fc931582SAndy Adamson uint32_t len; 1572fc931582SAndy Adamson struct nfs_client *clp = args->client; 1573fc931582SAndy Adamson 1574fc931582SAndy Adamson RESERVE_SPACE(4); 1575fc931582SAndy Adamson WRITE32(OP_CREATE_SESSION); 1576fc931582SAndy Adamson 1577fc931582SAndy Adamson RESERVE_SPACE(8); 1578fc931582SAndy Adamson WRITE64(clp->cl_ex_clid); 1579fc931582SAndy Adamson 1580fc931582SAndy Adamson RESERVE_SPACE(8); 1581fc931582SAndy Adamson WRITE32(clp->cl_seqid); /*Sequence id */ 1582fc931582SAndy Adamson WRITE32(args->flags); /*flags */ 1583fc931582SAndy Adamson 1584fc931582SAndy Adamson RESERVE_SPACE(2*28); /* 2 channel_attrs */ 1585fc931582SAndy Adamson /* Fore Channel */ 1586fc931582SAndy Adamson WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ 1587fc931582SAndy Adamson WRITE32(args->fc_attrs.max_rqst_sz); /* max req size */ 1588fc931582SAndy Adamson WRITE32(args->fc_attrs.max_resp_sz); /* max resp size */ 1589fc931582SAndy Adamson WRITE32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1590fc931582SAndy Adamson WRITE32(args->fc_attrs.max_ops); /* max operations */ 1591fc931582SAndy Adamson WRITE32(args->fc_attrs.max_reqs); /* max requests */ 1592fc931582SAndy Adamson WRITE32(0); /* rdmachannel_attrs */ 1593fc931582SAndy Adamson 1594fc931582SAndy Adamson /* Back Channel */ 1595fc931582SAndy Adamson WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ 1596fc931582SAndy Adamson WRITE32(args->bc_attrs.max_rqst_sz); /* max req size */ 1597fc931582SAndy Adamson WRITE32(args->bc_attrs.max_resp_sz); /* max resp size */ 1598fc931582SAndy Adamson WRITE32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1599fc931582SAndy Adamson WRITE32(args->bc_attrs.max_ops); /* max operations */ 1600fc931582SAndy Adamson WRITE32(args->bc_attrs.max_reqs); /* max requests */ 1601fc931582SAndy Adamson WRITE32(0); /* rdmachannel_attrs */ 1602fc931582SAndy Adamson 1603fc931582SAndy Adamson RESERVE_SPACE(4); 1604fc931582SAndy Adamson WRITE32(args->cb_program); /* cb_program */ 1605fc931582SAndy Adamson 1606fc931582SAndy Adamson RESERVE_SPACE(4); /* # of security flavors */ 1607fc931582SAndy Adamson WRITE32(1); 1608fc931582SAndy Adamson 1609fc931582SAndy Adamson RESERVE_SPACE(4); 1610fc931582SAndy Adamson WRITE32(RPC_AUTH_UNIX); /* auth_sys */ 1611fc931582SAndy Adamson 1612fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1613fc931582SAndy Adamson RESERVE_SPACE(4); 1614fc931582SAndy Adamson WRITE32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1615fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1616fc931582SAndy Adamson clp->cl_ipaddr); 1617fc931582SAndy Adamson RESERVE_SPACE(16 + len); 1618fc931582SAndy Adamson WRITE32(len); 1619fc931582SAndy Adamson WRITEMEM(machine_name, len); 1620fc931582SAndy Adamson WRITE32(0); /* UID */ 1621fc931582SAndy Adamson WRITE32(0); /* GID */ 1622fc931582SAndy Adamson WRITE32(0); /* No more gids */ 1623fc931582SAndy Adamson hdr->nops++; 1624fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1625fc931582SAndy Adamson } 16260f3e66c6SAndy Adamson 16270f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16280f3e66c6SAndy Adamson struct nfs4_session *session, 16290f3e66c6SAndy Adamson struct compound_hdr *hdr) 16300f3e66c6SAndy Adamson { 16310f3e66c6SAndy Adamson __be32 *p; 16320f3e66c6SAndy Adamson RESERVE_SPACE(4 + NFS4_MAX_SESSIONID_LEN); 16330f3e66c6SAndy Adamson WRITE32(OP_DESTROY_SESSION); 16340f3e66c6SAndy Adamson WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 16350f3e66c6SAndy Adamson hdr->nops++; 16360f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 16370f3e66c6SAndy Adamson } 163899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 163999fe60d0SBenny Halevy 16409b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 16419b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 16429b7b9fccSAndy Adamson struct compound_hdr *hdr) 16439b7b9fccSAndy Adamson { 16449b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 16459b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1646fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1647fc01cea9SAndy Adamson struct nfs4_slot *slot; 1648fc01cea9SAndy Adamson __be32 *p; 16499b7b9fccSAndy Adamson 16509b7b9fccSAndy Adamson if (!session) 16519b7b9fccSAndy Adamson return; 16529b7b9fccSAndy Adamson 1653fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1654fc01cea9SAndy Adamson 1655fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1656fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1657fc01cea9SAndy Adamson 1658fc01cea9SAndy Adamson RESERVE_SPACE(4); 1659fc01cea9SAndy Adamson WRITE32(OP_SEQUENCE); 1660fc01cea9SAndy Adamson 1661fc01cea9SAndy Adamson /* 1662fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1663fc01cea9SAndy Adamson */ 1664fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1665fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1666fc01cea9SAndy Adamson __func__, 1667fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1668fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1669fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1670fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1671fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1672fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1673fc01cea9SAndy Adamson RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 16); 1674fc01cea9SAndy Adamson WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1675fc01cea9SAndy Adamson WRITE32(slot->seq_nr); 1676fc01cea9SAndy Adamson WRITE32(args->sa_slotid); 1677fc01cea9SAndy Adamson WRITE32(tp->highest_used_slotid); 1678fc01cea9SAndy Adamson WRITE32(args->sa_cache_this); 16799b7b9fccSAndy Adamson hdr->nops++; 16809b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 16819b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 16829b7b9fccSAndy Adamson } 16839b7b9fccSAndy Adamson 16841da177e4SLinus Torvalds /* 16851da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 16861da177e4SLinus Torvalds */ 16871da177e4SLinus Torvalds 168866cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 168966cc0429SBenny Halevy { 169066cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 169166cc0429SBenny Halevy if (args->sa_session) 169266cc0429SBenny Halevy return args->sa_session->clp->cl_minorversion; 169366cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 169466cc0429SBenny Halevy return 0; 169566cc0429SBenny Halevy } 169666cc0429SBenny Halevy 16971da177e4SLinus Torvalds /* 16981da177e4SLinus Torvalds * Encode an ACCESS request 16991da177e4SLinus Torvalds */ 17008687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 17011da177e4SLinus Torvalds { 17021da177e4SLinus Torvalds struct xdr_stream xdr; 17031da177e4SLinus Torvalds struct compound_hdr hdr = { 170466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17051da177e4SLinus Torvalds }; 17061da177e4SLinus Torvalds 17071da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17080c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17099b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1710cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1711cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1712cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1713d017931cSAndy Adamson encode_nops(&hdr); 1714cf8cdbe5SAndy Adamson return 0; 17151da177e4SLinus Torvalds } 17161da177e4SLinus Torvalds 17171da177e4SLinus Torvalds /* 17181da177e4SLinus Torvalds * Encode LOOKUP request 17191da177e4SLinus Torvalds */ 17208687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 17211da177e4SLinus Torvalds { 17221da177e4SLinus Torvalds struct xdr_stream xdr; 17231da177e4SLinus Torvalds struct compound_hdr hdr = { 172466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17251da177e4SLinus Torvalds }; 17261da177e4SLinus Torvalds 17271da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17280c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17299b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1730cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1731cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1732cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1733cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1734d017931cSAndy Adamson encode_nops(&hdr); 1735cf8cdbe5SAndy Adamson return 0; 17361da177e4SLinus Torvalds } 17371da177e4SLinus Torvalds 17381da177e4SLinus Torvalds /* 17391da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 17401da177e4SLinus Torvalds */ 17418687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 17421da177e4SLinus Torvalds { 17431da177e4SLinus Torvalds struct xdr_stream xdr; 17441da177e4SLinus Torvalds struct compound_hdr hdr = { 174566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17461da177e4SLinus Torvalds }; 17471da177e4SLinus Torvalds 17481da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17490c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17509b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1751cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1752cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1753cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1754d017931cSAndy Adamson encode_nops(&hdr); 1755cf8cdbe5SAndy Adamson return 0; 17561da177e4SLinus Torvalds } 17571da177e4SLinus Torvalds 17581da177e4SLinus Torvalds /* 17591da177e4SLinus Torvalds * Encode REMOVE request 17601da177e4SLinus Torvalds */ 17614fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 17621da177e4SLinus Torvalds { 17631da177e4SLinus Torvalds struct xdr_stream xdr; 17641da177e4SLinus Torvalds struct compound_hdr hdr = { 176566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17661da177e4SLinus Torvalds }; 17671da177e4SLinus Torvalds 17681da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17690c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17709b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1771cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1772cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1773cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1774d017931cSAndy Adamson encode_nops(&hdr); 1775cf8cdbe5SAndy Adamson return 0; 17761da177e4SLinus Torvalds } 17771da177e4SLinus Torvalds 17781da177e4SLinus Torvalds /* 17791da177e4SLinus Torvalds * Encode RENAME request 17801da177e4SLinus Torvalds */ 17818687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 17821da177e4SLinus Torvalds { 17831da177e4SLinus Torvalds struct xdr_stream xdr; 17841da177e4SLinus Torvalds struct compound_hdr hdr = { 178566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17861da177e4SLinus Torvalds }; 17871da177e4SLinus Torvalds 17881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17890c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17909b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1791cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1792cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1793cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1794cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1795cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1796cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1797cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1798d017931cSAndy Adamson encode_nops(&hdr); 1799cf8cdbe5SAndy Adamson return 0; 18001da177e4SLinus Torvalds } 18011da177e4SLinus Torvalds 18021da177e4SLinus Torvalds /* 18031da177e4SLinus Torvalds * Encode LINK request 18041da177e4SLinus Torvalds */ 18058687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 18061da177e4SLinus Torvalds { 18071da177e4SLinus Torvalds struct xdr_stream xdr; 18081da177e4SLinus Torvalds struct compound_hdr hdr = { 180966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18101da177e4SLinus Torvalds }; 18111da177e4SLinus Torvalds 18121da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18130c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18149b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1815cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1816cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1817cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1818cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1819cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1820cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1821cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1822d017931cSAndy Adamson encode_nops(&hdr); 1823cf8cdbe5SAndy Adamson return 0; 18241da177e4SLinus Torvalds } 18251da177e4SLinus Torvalds 18261da177e4SLinus Torvalds /* 18271da177e4SLinus Torvalds * Encode CREATE request 18281da177e4SLinus Torvalds */ 18298687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18301da177e4SLinus Torvalds { 18311da177e4SLinus Torvalds struct xdr_stream xdr; 18321da177e4SLinus Torvalds struct compound_hdr hdr = { 183366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18341da177e4SLinus Torvalds }; 18351da177e4SLinus Torvalds 18361da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18370c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18389b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1839cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1840cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1841cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1842cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1843cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1844cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1845cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1846d017931cSAndy Adamson encode_nops(&hdr); 1847cf8cdbe5SAndy Adamson return 0; 18481da177e4SLinus Torvalds } 18491da177e4SLinus Torvalds 18501da177e4SLinus Torvalds /* 18511da177e4SLinus Torvalds * Encode SYMLINK request 18521da177e4SLinus Torvalds */ 18538687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18541da177e4SLinus Torvalds { 18551da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 18561da177e4SLinus Torvalds } 18571da177e4SLinus Torvalds 18581da177e4SLinus Torvalds /* 18591da177e4SLinus Torvalds * Encode GETATTR request 18601da177e4SLinus Torvalds */ 18618687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 18621da177e4SLinus Torvalds { 18631da177e4SLinus Torvalds struct xdr_stream xdr; 18641da177e4SLinus Torvalds struct compound_hdr hdr = { 186566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18661da177e4SLinus Torvalds }; 18671da177e4SLinus Torvalds 18681da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18690c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18709b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1871cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1872cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1873d017931cSAndy Adamson encode_nops(&hdr); 1874cf8cdbe5SAndy Adamson return 0; 18751da177e4SLinus Torvalds } 18761da177e4SLinus Torvalds 18771da177e4SLinus Torvalds /* 18781da177e4SLinus Torvalds * Encode a CLOSE request 18791da177e4SLinus Torvalds */ 18808687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 18811da177e4SLinus Torvalds { 18821da177e4SLinus Torvalds struct xdr_stream xdr; 18831da177e4SLinus Torvalds struct compound_hdr hdr = { 188466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18851da177e4SLinus Torvalds }; 18861da177e4SLinus Torvalds 18871da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18880c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18899b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1890cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1891cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1892cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1893d017931cSAndy Adamson encode_nops(&hdr); 1894cf8cdbe5SAndy Adamson return 0; 18951da177e4SLinus Torvalds } 18961da177e4SLinus Torvalds 18971da177e4SLinus Torvalds /* 18981da177e4SLinus Torvalds * Encode an OPEN request 18991da177e4SLinus Torvalds */ 19008687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19011da177e4SLinus Torvalds { 19021da177e4SLinus Torvalds struct xdr_stream xdr; 19031da177e4SLinus Torvalds struct compound_hdr hdr = { 190466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19051da177e4SLinus Torvalds }; 19061da177e4SLinus Torvalds 19071da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19080c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19099b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1910cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1911cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1912cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1913cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1914cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1915cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1916cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1917d017931cSAndy Adamson encode_nops(&hdr); 1918cf8cdbe5SAndy Adamson return 0; 19191da177e4SLinus Torvalds } 19201da177e4SLinus Torvalds 19211da177e4SLinus Torvalds /* 19221da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 19231da177e4SLinus Torvalds */ 19248687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 19251da177e4SLinus Torvalds { 19261da177e4SLinus Torvalds struct xdr_stream xdr; 19271da177e4SLinus Torvalds struct compound_hdr hdr = { 1928d017931cSAndy Adamson .nops = 0, 19291da177e4SLinus Torvalds }; 19301da177e4SLinus Torvalds 19311da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19320c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1933cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1934cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1935d017931cSAndy Adamson encode_nops(&hdr); 1936cf8cdbe5SAndy Adamson return 0; 19371da177e4SLinus Torvalds } 19381da177e4SLinus Torvalds 19391da177e4SLinus Torvalds /* 19401da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 19411da177e4SLinus Torvalds */ 19428687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19431da177e4SLinus Torvalds { 19441da177e4SLinus Torvalds struct xdr_stream xdr; 19451da177e4SLinus Torvalds struct compound_hdr hdr = { 194666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19471da177e4SLinus Torvalds }; 19481da177e4SLinus Torvalds 19491da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19500c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19519b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1952cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1953cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1954cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1955d017931cSAndy Adamson encode_nops(&hdr); 1956cf8cdbe5SAndy Adamson return 0; 19571da177e4SLinus Torvalds } 19581da177e4SLinus Torvalds 19591da177e4SLinus Torvalds /* 19601da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 19611da177e4SLinus Torvalds */ 19628687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19631da177e4SLinus Torvalds { 19641da177e4SLinus Torvalds struct xdr_stream xdr; 19651da177e4SLinus Torvalds struct compound_hdr hdr = { 196666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19671da177e4SLinus Torvalds }; 19681da177e4SLinus Torvalds 19691da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19700c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19719b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1972cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1973cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1974cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1975d017931cSAndy Adamson encode_nops(&hdr); 1976cf8cdbe5SAndy Adamson return 0; 19771da177e4SLinus Torvalds } 19781da177e4SLinus Torvalds 19791da177e4SLinus Torvalds /* 19801da177e4SLinus Torvalds * Encode a LOCK request 19811da177e4SLinus Torvalds */ 19828687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 19831da177e4SLinus Torvalds { 19841da177e4SLinus Torvalds struct xdr_stream xdr; 19851da177e4SLinus Torvalds struct compound_hdr hdr = { 198666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19871da177e4SLinus Torvalds }; 19881da177e4SLinus Torvalds 19891da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19900c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19919b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1992cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1993cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 1994d017931cSAndy Adamson encode_nops(&hdr); 1995cf8cdbe5SAndy Adamson return 0; 19961da177e4SLinus Torvalds } 19971da177e4SLinus Torvalds 19981da177e4SLinus Torvalds /* 19991da177e4SLinus Torvalds * Encode a LOCKT request 20001da177e4SLinus Torvalds */ 20018687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 20021da177e4SLinus Torvalds { 20031da177e4SLinus Torvalds struct xdr_stream xdr; 20041da177e4SLinus Torvalds struct compound_hdr hdr = { 200566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20061da177e4SLinus Torvalds }; 20071da177e4SLinus Torvalds 20081da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20090c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20109b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2011cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2012cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 2013d017931cSAndy Adamson encode_nops(&hdr); 2014cf8cdbe5SAndy Adamson return 0; 20151da177e4SLinus Torvalds } 20161da177e4SLinus Torvalds 20171da177e4SLinus Torvalds /* 20181da177e4SLinus Torvalds * Encode a LOCKU request 20191da177e4SLinus Torvalds */ 20208687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 20211da177e4SLinus Torvalds { 20221da177e4SLinus Torvalds struct xdr_stream xdr; 20231da177e4SLinus Torvalds struct compound_hdr hdr = { 202466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20251da177e4SLinus Torvalds }; 20261da177e4SLinus Torvalds 20271da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20280c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20299b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2030cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2031cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 2032d017931cSAndy Adamson encode_nops(&hdr); 2033cf8cdbe5SAndy Adamson return 0; 20341da177e4SLinus Torvalds } 20351da177e4SLinus Torvalds 20361da177e4SLinus Torvalds /* 20371da177e4SLinus Torvalds * Encode a READLINK request 20381da177e4SLinus Torvalds */ 20398687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 20401da177e4SLinus Torvalds { 20411da177e4SLinus Torvalds struct xdr_stream xdr; 20421da177e4SLinus Torvalds struct compound_hdr hdr = { 204366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20441da177e4SLinus Torvalds }; 20451da177e4SLinus Torvalds 20461da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20470c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20489b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2049cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2050cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2051e3a535e1STrond Myklebust 205228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2053e3a535e1STrond Myklebust args->pgbase, args->pglen); 2054d017931cSAndy Adamson encode_nops(&hdr); 2055cf8cdbe5SAndy Adamson return 0; 20561da177e4SLinus Torvalds } 20571da177e4SLinus Torvalds 20581da177e4SLinus Torvalds /* 20591da177e4SLinus Torvalds * Encode a READDIR request 20601da177e4SLinus Torvalds */ 20618687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 20621da177e4SLinus Torvalds { 20631da177e4SLinus Torvalds struct xdr_stream xdr; 20641da177e4SLinus Torvalds struct compound_hdr hdr = { 206566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20661da177e4SLinus Torvalds }; 20671da177e4SLinus Torvalds 20681da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20690c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20709b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2071cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2072cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2073d6ac02dfSTrond Myklebust 207428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2075d6ac02dfSTrond Myklebust args->pgbase, args->count); 2076d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 207728f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2078d6ac02dfSTrond Myklebust args->pgbase, args->count); 2079d017931cSAndy Adamson encode_nops(&hdr); 2080cf8cdbe5SAndy Adamson return 0; 20811da177e4SLinus Torvalds } 20821da177e4SLinus Torvalds 20831da177e4SLinus Torvalds /* 20841da177e4SLinus Torvalds * Encode a READ request 20851da177e4SLinus Torvalds */ 20868687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 20871da177e4SLinus Torvalds { 20881da177e4SLinus Torvalds struct xdr_stream xdr; 20891da177e4SLinus Torvalds struct compound_hdr hdr = { 209066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20911da177e4SLinus Torvalds }; 20921da177e4SLinus Torvalds 20931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20940c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20959b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2096cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2097cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 20981da177e4SLinus Torvalds 209928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 21001da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 21014f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2102d017931cSAndy Adamson encode_nops(&hdr); 2103cf8cdbe5SAndy Adamson return 0; 21041da177e4SLinus Torvalds } 21051da177e4SLinus Torvalds 21061da177e4SLinus Torvalds /* 21071da177e4SLinus Torvalds * Encode an SETATTR request 21081da177e4SLinus Torvalds */ 21098687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 21101da177e4SLinus Torvalds { 21111da177e4SLinus Torvalds struct xdr_stream xdr; 21121da177e4SLinus Torvalds struct compound_hdr hdr = { 211366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21141da177e4SLinus Torvalds }; 21151da177e4SLinus Torvalds 21161da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21170c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21189b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2119cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2120cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2121cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2122d017931cSAndy Adamson encode_nops(&hdr); 2123cf8cdbe5SAndy Adamson return 0; 21241da177e4SLinus Torvalds } 21251da177e4SLinus Torvalds 21261da177e4SLinus Torvalds /* 2127029d105eSJ. Bruce Fields * Encode a GETACL request 2128029d105eSJ. Bruce Fields */ 2129029d105eSJ. Bruce Fields static int 21308687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2131029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2132029d105eSJ. Bruce Fields { 2133029d105eSJ. Bruce Fields struct xdr_stream xdr; 2134029d105eSJ. Bruce Fields struct compound_hdr hdr = { 213566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2136029d105eSJ. Bruce Fields }; 213728f56694SBenny Halevy uint32_t replen; 2138029d105eSJ. Bruce Fields 2139029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21400c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21419b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2142cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 214328f56694SBenny Halevy replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; 2144cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2145cf8cdbe5SAndy Adamson 214628f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2147029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2148d017931cSAndy Adamson encode_nops(&hdr); 2149cf8cdbe5SAndy Adamson return 0; 2150029d105eSJ. Bruce Fields } 2151029d105eSJ. Bruce Fields 2152029d105eSJ. Bruce Fields /* 21531da177e4SLinus Torvalds * Encode a WRITE request 21541da177e4SLinus Torvalds */ 21558687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21561da177e4SLinus Torvalds { 21571da177e4SLinus Torvalds struct xdr_stream xdr; 21581da177e4SLinus Torvalds struct compound_hdr hdr = { 215966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21601da177e4SLinus Torvalds }; 21611da177e4SLinus Torvalds 21621da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21630c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21649b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2165cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2166cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 21674f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2168cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2169d017931cSAndy Adamson encode_nops(&hdr); 2170cf8cdbe5SAndy Adamson return 0; 21711da177e4SLinus Torvalds } 21721da177e4SLinus Torvalds 21731da177e4SLinus Torvalds /* 21741da177e4SLinus Torvalds * a COMMIT request 21751da177e4SLinus Torvalds */ 21768687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21771da177e4SLinus Torvalds { 21781da177e4SLinus Torvalds struct xdr_stream xdr; 21791da177e4SLinus Torvalds struct compound_hdr hdr = { 218066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21811da177e4SLinus Torvalds }; 21821da177e4SLinus Torvalds 21831da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21840c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21859b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2186cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2187cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2188cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2189d017931cSAndy Adamson encode_nops(&hdr); 2190cf8cdbe5SAndy Adamson return 0; 21911da177e4SLinus Torvalds } 21921da177e4SLinus Torvalds 21931da177e4SLinus Torvalds /* 21941da177e4SLinus Torvalds * FSINFO request 21951da177e4SLinus Torvalds */ 21968687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 21971da177e4SLinus Torvalds { 21981da177e4SLinus Torvalds struct xdr_stream xdr; 21991da177e4SLinus Torvalds struct compound_hdr hdr = { 220066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22011da177e4SLinus Torvalds }; 22021da177e4SLinus Torvalds 22031da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22040c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22059b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2206cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2207cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2208d017931cSAndy Adamson encode_nops(&hdr); 2209cf8cdbe5SAndy Adamson return 0; 22101da177e4SLinus Torvalds } 22111da177e4SLinus Torvalds 22121da177e4SLinus Torvalds /* 22131da177e4SLinus Torvalds * a PATHCONF request 22141da177e4SLinus Torvalds */ 22158687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 22161da177e4SLinus Torvalds { 22171da177e4SLinus Torvalds struct xdr_stream xdr; 22181da177e4SLinus Torvalds struct compound_hdr hdr = { 221966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22201da177e4SLinus Torvalds }; 22211da177e4SLinus Torvalds 22221da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22230c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22249b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2225cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2226cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2227d017931cSAndy Adamson &hdr); 2228d017931cSAndy Adamson encode_nops(&hdr); 2229cf8cdbe5SAndy Adamson return 0; 22301da177e4SLinus Torvalds } 22311da177e4SLinus Torvalds 22321da177e4SLinus Torvalds /* 22331da177e4SLinus Torvalds * a STATFS request 22341da177e4SLinus Torvalds */ 22358687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 22361da177e4SLinus Torvalds { 22371da177e4SLinus Torvalds struct xdr_stream xdr; 22381da177e4SLinus Torvalds struct compound_hdr hdr = { 223966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22401da177e4SLinus Torvalds }; 22411da177e4SLinus Torvalds 22421da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22430c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22449b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2245cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2246cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2247d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2248d017931cSAndy Adamson encode_nops(&hdr); 2249cf8cdbe5SAndy Adamson return 0; 22501da177e4SLinus Torvalds } 22511da177e4SLinus Torvalds 22521da177e4SLinus Torvalds /* 22531da177e4SLinus Torvalds * GETATTR_BITMAP request 22541da177e4SLinus Torvalds */ 225543652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 225643652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 22571da177e4SLinus Torvalds { 22581da177e4SLinus Torvalds struct xdr_stream xdr; 22591da177e4SLinus Torvalds struct compound_hdr hdr = { 226066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22611da177e4SLinus Torvalds }; 22621da177e4SLinus Torvalds 22631da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22640c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22659b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 226643652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2267cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 22681da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 22691da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2270d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2271d017931cSAndy Adamson encode_nops(&hdr); 2272cf8cdbe5SAndy Adamson return 0; 22731da177e4SLinus Torvalds } 22741da177e4SLinus Torvalds 22751da177e4SLinus Torvalds /* 22761da177e4SLinus Torvalds * a RENEW request 22771da177e4SLinus Torvalds */ 22788687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22791da177e4SLinus Torvalds { 22801da177e4SLinus Torvalds struct xdr_stream xdr; 22811da177e4SLinus Torvalds struct compound_hdr hdr = { 2282d017931cSAndy Adamson .nops = 0, 22831da177e4SLinus Torvalds }; 22841da177e4SLinus Torvalds 22851da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22860c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2287cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2288d017931cSAndy Adamson encode_nops(&hdr); 2289cf8cdbe5SAndy Adamson return 0; 22901da177e4SLinus Torvalds } 22911da177e4SLinus Torvalds 22921da177e4SLinus Torvalds /* 22931da177e4SLinus Torvalds * a SETCLIENTID request 22941da177e4SLinus Torvalds */ 22958687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 22961da177e4SLinus Torvalds { 22971da177e4SLinus Torvalds struct xdr_stream xdr; 22981da177e4SLinus Torvalds struct compound_hdr hdr = { 2299d017931cSAndy Adamson .nops = 0, 23001da177e4SLinus Torvalds }; 23011da177e4SLinus Torvalds 23021da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23030c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2304cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2305d017931cSAndy Adamson encode_nops(&hdr); 2306cf8cdbe5SAndy Adamson return 0; 23071da177e4SLinus Torvalds } 23081da177e4SLinus Torvalds 23091da177e4SLinus Torvalds /* 23101da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 23111da177e4SLinus Torvalds */ 23128687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 23131da177e4SLinus Torvalds { 23141da177e4SLinus Torvalds struct xdr_stream xdr; 23151da177e4SLinus Torvalds struct compound_hdr hdr = { 2316d017931cSAndy Adamson .nops = 0, 23171da177e4SLinus Torvalds }; 23181da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 23191da177e4SLinus Torvalds 23201da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23210c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2322cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 2323cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2324cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2325d017931cSAndy Adamson encode_nops(&hdr); 2326cf8cdbe5SAndy Adamson return 0; 23271da177e4SLinus Torvalds } 23281da177e4SLinus Torvalds 23291da177e4SLinus Torvalds /* 23301da177e4SLinus Torvalds * DELEGRETURN request 23311da177e4SLinus Torvalds */ 23328687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 23331da177e4SLinus Torvalds { 23341da177e4SLinus Torvalds struct xdr_stream xdr; 23351da177e4SLinus Torvalds struct compound_hdr hdr = { 233666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23371da177e4SLinus Torvalds }; 23381da177e4SLinus Torvalds 23391da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23400c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23419b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2342cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2343cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2344cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2345d017931cSAndy Adamson encode_nops(&hdr); 2346cf8cdbe5SAndy Adamson return 0; 23471da177e4SLinus Torvalds } 23481da177e4SLinus Torvalds 23491da177e4SLinus Torvalds /* 2350683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2351683b57b4STrond Myklebust */ 23528687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2353683b57b4STrond Myklebust { 2354683b57b4STrond Myklebust struct xdr_stream xdr; 2355683b57b4STrond Myklebust struct compound_hdr hdr = { 235666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2357683b57b4STrond Myklebust }; 235828f56694SBenny Halevy uint32_t replen; 2359683b57b4STrond Myklebust 2360683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23610c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23629b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2363cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2364cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 236528f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2366cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2367cf8cdbe5SAndy Adamson 236828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2369683b57b4STrond Myklebust 0, PAGE_SIZE); 2370d017931cSAndy Adamson encode_nops(&hdr); 2371cf8cdbe5SAndy Adamson return 0; 2372683b57b4STrond Myklebust } 2373683b57b4STrond Myklebust 237499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 237599fe60d0SBenny Halevy /* 237699fe60d0SBenny Halevy * EXCHANGE_ID request 237799fe60d0SBenny Halevy */ 237899fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 237999fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 238099fe60d0SBenny Halevy { 238199fe60d0SBenny Halevy struct xdr_stream xdr; 238299fe60d0SBenny Halevy struct compound_hdr hdr = { 238399fe60d0SBenny Halevy .minorversion = args->client->cl_minorversion, 238499fe60d0SBenny Halevy }; 238599fe60d0SBenny Halevy 238699fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 238799fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 238899fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 238999fe60d0SBenny Halevy encode_nops(&hdr); 239099fe60d0SBenny Halevy return 0; 239199fe60d0SBenny Halevy } 23922050f0ccSAndy Adamson 23932050f0ccSAndy Adamson /* 2394fc931582SAndy Adamson * a CREATE_SESSION request 2395fc931582SAndy Adamson */ 2396fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2397fc931582SAndy Adamson struct nfs41_create_session_args *args) 2398fc931582SAndy Adamson { 2399fc931582SAndy Adamson struct xdr_stream xdr; 2400fc931582SAndy Adamson struct compound_hdr hdr = { 2401fc931582SAndy Adamson .minorversion = args->client->cl_minorversion, 2402fc931582SAndy Adamson }; 2403fc931582SAndy Adamson 2404fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2405fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2406fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2407fc931582SAndy Adamson encode_nops(&hdr); 2408fc931582SAndy Adamson return 0; 2409fc931582SAndy Adamson } 2410fc931582SAndy Adamson 2411fc931582SAndy Adamson /* 24120f3e66c6SAndy Adamson * a DESTROY_SESSION request 24130f3e66c6SAndy Adamson */ 24140f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 24150f3e66c6SAndy Adamson struct nfs4_session *session) 24160f3e66c6SAndy Adamson { 24170f3e66c6SAndy Adamson struct xdr_stream xdr; 24180f3e66c6SAndy Adamson struct compound_hdr hdr = { 24190f3e66c6SAndy Adamson .minorversion = session->clp->cl_minorversion, 24200f3e66c6SAndy Adamson }; 24210f3e66c6SAndy Adamson 24220f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24230f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24240f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 24250f3e66c6SAndy Adamson encode_nops(&hdr); 24260f3e66c6SAndy Adamson return 0; 24270f3e66c6SAndy Adamson } 24280f3e66c6SAndy Adamson 24290f3e66c6SAndy Adamson /* 2430fc01cea9SAndy Adamson * a SEQUENCE request 2431fc01cea9SAndy Adamson */ 2432fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2433fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2434fc01cea9SAndy Adamson { 2435fc01cea9SAndy Adamson struct xdr_stream xdr; 2436fc01cea9SAndy Adamson struct compound_hdr hdr = { 2437fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2438fc01cea9SAndy Adamson }; 2439fc01cea9SAndy Adamson 2440fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2441fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2442fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2443fc01cea9SAndy Adamson encode_nops(&hdr); 2444fc01cea9SAndy Adamson return 0; 2445fc01cea9SAndy Adamson } 2446fc01cea9SAndy Adamson 2447fc01cea9SAndy Adamson /* 24482050f0ccSAndy Adamson * a GET_LEASE_TIME request 24492050f0ccSAndy Adamson */ 24502050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 24512050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 24522050f0ccSAndy Adamson { 24532050f0ccSAndy Adamson struct xdr_stream xdr; 24542050f0ccSAndy Adamson struct compound_hdr hdr = { 24552050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 24562050f0ccSAndy Adamson }; 24572050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24582050f0ccSAndy Adamson 24592050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24602050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24612050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 24622050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 24632050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 24642050f0ccSAndy Adamson encode_nops(&hdr); 24652050f0ccSAndy Adamson return 0; 24662050f0ccSAndy Adamson } 246799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 246899fe60d0SBenny Halevy 2469683b57b4STrond Myklebust /* 24701da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 24711da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 24721da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 24731da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 24741da177e4SLinus Torvalds * 24751da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 24761da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 24771da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 24781da177e4SLinus Torvalds */ 24791da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 24801da177e4SLinus Torvalds #define READ64(x) do { \ 24811da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 24821da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 24831da177e4SLinus Torvalds } while (0) 24841da177e4SLinus Torvalds #define READTIME(x) do { \ 24851da177e4SLinus Torvalds p++; \ 24861da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 24871da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 24881da177e4SLinus Torvalds } while (0) 24891da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 24901da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 24911da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 24921da177e4SLinus Torvalds } while (0) 24931da177e4SLinus Torvalds 24941da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 24951da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2496e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2497fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 24983110ff80SHarvey Harrison " buffer\n", __func__); \ 2499fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 25003110ff80SHarvey Harrison __func__, xdr->p, nbytes, xdr->end); \ 25011da177e4SLinus Torvalds return -EIO; \ 25021da177e4SLinus Torvalds } \ 25031da177e4SLinus Torvalds } while (0) 25041da177e4SLinus Torvalds 2505683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 25061da177e4SLinus Torvalds { 25078687b63aSAl Viro __be32 *p; 25081da177e4SLinus Torvalds 25091da177e4SLinus Torvalds READ_BUF(4); 25101da177e4SLinus Torvalds READ32(*len); 25111da177e4SLinus Torvalds READ_BUF(*len); 25121da177e4SLinus Torvalds *string = (char *)p; 25131da177e4SLinus Torvalds return 0; 25141da177e4SLinus Torvalds } 25151da177e4SLinus Torvalds 25161da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 25171da177e4SLinus Torvalds { 25188687b63aSAl Viro __be32 *p; 25191da177e4SLinus Torvalds 25201da177e4SLinus Torvalds READ_BUF(8); 25211da177e4SLinus Torvalds READ32(hdr->status); 25221da177e4SLinus Torvalds READ32(hdr->taglen); 25231da177e4SLinus Torvalds 25241da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 25251da177e4SLinus Torvalds hdr->tag = (char *)p; 25261da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 25271da177e4SLinus Torvalds READ32(hdr->nops); 2528aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2529aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 25301da177e4SLinus Torvalds return 0; 25311da177e4SLinus Torvalds } 25321da177e4SLinus Torvalds 25331da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 25341da177e4SLinus Torvalds { 25358687b63aSAl Viro __be32 *p; 25361da177e4SLinus Torvalds uint32_t opnum; 25371da177e4SLinus Torvalds int32_t nfserr; 25381da177e4SLinus Torvalds 25391da177e4SLinus Torvalds READ_BUF(8); 25401da177e4SLinus Torvalds READ32(opnum); 25411da177e4SLinus Torvalds if (opnum != expected) { 2542fe82a183SChuck Lever dprintk("nfs: Server returned operation" 25431da177e4SLinus Torvalds " %d but we issued a request for %d\n", 25441da177e4SLinus Torvalds opnum, expected); 25451da177e4SLinus Torvalds return -EIO; 25461da177e4SLinus Torvalds } 25471da177e4SLinus Torvalds READ32(nfserr); 25481da177e4SLinus Torvalds if (nfserr != NFS_OK) 2549856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 25501da177e4SLinus Torvalds return 0; 25511da177e4SLinus Torvalds } 25521da177e4SLinus Torvalds 25531da177e4SLinus Torvalds /* Dummy routine */ 2554adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 25551da177e4SLinus Torvalds { 25568687b63aSAl Viro __be32 *p; 2557683b57b4STrond Myklebust unsigned int strlen; 25581da177e4SLinus Torvalds char *str; 25591da177e4SLinus Torvalds 25601da177e4SLinus Torvalds READ_BUF(12); 25611da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 25621da177e4SLinus Torvalds } 25631da177e4SLinus Torvalds 25641da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 25651da177e4SLinus Torvalds { 25668687b63aSAl Viro uint32_t bmlen; 25678687b63aSAl Viro __be32 *p; 25681da177e4SLinus Torvalds 25691da177e4SLinus Torvalds READ_BUF(4); 25701da177e4SLinus Torvalds READ32(bmlen); 25711da177e4SLinus Torvalds 25721da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 25731da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 25741da177e4SLinus Torvalds if (bmlen > 0) { 25751da177e4SLinus Torvalds READ32(bitmap[0]); 25761da177e4SLinus Torvalds if (bmlen > 1) 25771da177e4SLinus Torvalds READ32(bitmap[1]); 25781da177e4SLinus Torvalds } 25791da177e4SLinus Torvalds return 0; 25801da177e4SLinus Torvalds } 25811da177e4SLinus Torvalds 25828687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 25831da177e4SLinus Torvalds { 25848687b63aSAl Viro __be32 *p; 25851da177e4SLinus Torvalds 25861da177e4SLinus Torvalds READ_BUF(4); 25871da177e4SLinus Torvalds READ32(*attrlen); 25881da177e4SLinus Torvalds *savep = xdr->p; 25891da177e4SLinus Torvalds return 0; 25901da177e4SLinus Torvalds } 25911da177e4SLinus Torvalds 25921da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 25931da177e4SLinus Torvalds { 25941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 25951da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 25961da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 25971da177e4SLinus Torvalds } else 25981da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 259944109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 26001da177e4SLinus Torvalds return 0; 26011da177e4SLinus Torvalds } 26021da177e4SLinus Torvalds 26031da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 26041da177e4SLinus Torvalds { 26058687b63aSAl Viro __be32 *p; 2606409924e4STrond Myklebust int ret = 0; 26071da177e4SLinus Torvalds 26081da177e4SLinus Torvalds *type = 0; 26091da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 26101da177e4SLinus Torvalds return -EIO; 26111da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 26121da177e4SLinus Torvalds READ_BUF(4); 26131da177e4SLinus Torvalds READ32(*type); 26141da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 26153110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 26161da177e4SLinus Torvalds return -EIO; 26171da177e4SLinus Torvalds } 26181da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2619409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 26201da177e4SLinus Torvalds } 2621bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2622409924e4STrond Myklebust return ret; 26231da177e4SLinus Torvalds } 26241da177e4SLinus Torvalds 26251da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 26261da177e4SLinus Torvalds { 26278687b63aSAl Viro __be32 *p; 2628409924e4STrond Myklebust int ret = 0; 26291da177e4SLinus Torvalds 26301da177e4SLinus Torvalds *change = 0; 26311da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 26321da177e4SLinus Torvalds return -EIO; 26331da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 26341da177e4SLinus Torvalds READ_BUF(8); 26351da177e4SLinus Torvalds READ64(*change); 26361da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2637409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 26381da177e4SLinus Torvalds } 26393110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 26401da177e4SLinus Torvalds (unsigned long long)*change); 2641409924e4STrond Myklebust return ret; 26421da177e4SLinus Torvalds } 26431da177e4SLinus Torvalds 26441da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 26451da177e4SLinus Torvalds { 26468687b63aSAl Viro __be32 *p; 2647409924e4STrond Myklebust int ret = 0; 26481da177e4SLinus Torvalds 26491da177e4SLinus Torvalds *size = 0; 26501da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 26511da177e4SLinus Torvalds return -EIO; 26521da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 26531da177e4SLinus Torvalds READ_BUF(8); 26541da177e4SLinus Torvalds READ64(*size); 26551da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2656409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 26571da177e4SLinus Torvalds } 26583110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2659409924e4STrond Myklebust return ret; 26601da177e4SLinus Torvalds } 26611da177e4SLinus Torvalds 26621da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26631da177e4SLinus Torvalds { 26648687b63aSAl Viro __be32 *p; 26651da177e4SLinus Torvalds 26661da177e4SLinus Torvalds *res = 0; 26671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 26681da177e4SLinus Torvalds return -EIO; 26691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 26701da177e4SLinus Torvalds READ_BUF(4); 26711da177e4SLinus Torvalds READ32(*res); 26721da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 26731da177e4SLinus Torvalds } 26743110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 26751da177e4SLinus Torvalds return 0; 26761da177e4SLinus Torvalds } 26771da177e4SLinus Torvalds 26781da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26791da177e4SLinus Torvalds { 26808687b63aSAl Viro __be32 *p; 26811da177e4SLinus Torvalds 26821da177e4SLinus Torvalds *res = 0; 26831da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 26841da177e4SLinus Torvalds return -EIO; 26851da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 26861da177e4SLinus Torvalds READ_BUF(4); 26871da177e4SLinus Torvalds READ32(*res); 26881da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 26891da177e4SLinus Torvalds } 26903110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 26911da177e4SLinus Torvalds return 0; 26921da177e4SLinus Torvalds } 26931da177e4SLinus Torvalds 26948b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 26951da177e4SLinus Torvalds { 26968687b63aSAl Viro __be32 *p; 2697409924e4STrond Myklebust int ret = 0; 26981da177e4SLinus Torvalds 26991da177e4SLinus Torvalds fsid->major = 0; 27001da177e4SLinus Torvalds fsid->minor = 0; 27011da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 27021da177e4SLinus Torvalds return -EIO; 27031da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 27041da177e4SLinus Torvalds READ_BUF(16); 27051da177e4SLinus Torvalds READ64(fsid->major); 27061da177e4SLinus Torvalds READ64(fsid->minor); 27071da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2708409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 27091da177e4SLinus Torvalds } 27103110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 27111da177e4SLinus Torvalds (unsigned long long)fsid->major, 27121da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2713409924e4STrond Myklebust return ret; 27141da177e4SLinus Torvalds } 27151da177e4SLinus Torvalds 27161da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27171da177e4SLinus Torvalds { 27188687b63aSAl Viro __be32 *p; 27191da177e4SLinus Torvalds 27201da177e4SLinus Torvalds *res = 60; 27211da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 27221da177e4SLinus Torvalds return -EIO; 27231da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 27241da177e4SLinus Torvalds READ_BUF(4); 27251da177e4SLinus Torvalds READ32(*res); 27261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 27271da177e4SLinus Torvalds } 27283110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 27291da177e4SLinus Torvalds return 0; 27301da177e4SLinus Torvalds } 27311da177e4SLinus Torvalds 27321da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27331da177e4SLinus Torvalds { 27348687b63aSAl Viro __be32 *p; 27351da177e4SLinus Torvalds 27361da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 27371da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 27381da177e4SLinus Torvalds return -EIO; 27391da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 27401da177e4SLinus Torvalds READ_BUF(4); 27411da177e4SLinus Torvalds READ32(*res); 27421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 27431da177e4SLinus Torvalds } 27443110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 27451da177e4SLinus Torvalds return 0; 27461da177e4SLinus Torvalds } 27471da177e4SLinus Torvalds 27481da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 27491da177e4SLinus Torvalds { 27508687b63aSAl Viro __be32 *p; 2751409924e4STrond Myklebust int ret = 0; 27521da177e4SLinus Torvalds 27531da177e4SLinus Torvalds *fileid = 0; 27541da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 27551da177e4SLinus Torvalds return -EIO; 27561da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 27571da177e4SLinus Torvalds READ_BUF(8); 27581da177e4SLinus Torvalds READ64(*fileid); 27591da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2760409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 27611da177e4SLinus Torvalds } 27623110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2763409924e4STrond Myklebust return ret; 27641da177e4SLinus Torvalds } 27651da177e4SLinus Torvalds 276699baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 276799baf625SManoj Naik { 27688687b63aSAl Viro __be32 *p; 2769409924e4STrond Myklebust int ret = 0; 277099baf625SManoj Naik 277199baf625SManoj Naik *fileid = 0; 277299baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 277399baf625SManoj Naik return -EIO; 277499baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 277599baf625SManoj Naik READ_BUF(8); 277699baf625SManoj Naik READ64(*fileid); 277799baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2778409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 277999baf625SManoj Naik } 27803110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2781409924e4STrond Myklebust return ret; 278299baf625SManoj Naik } 278399baf625SManoj Naik 27841da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27851da177e4SLinus Torvalds { 27868687b63aSAl Viro __be32 *p; 27871da177e4SLinus Torvalds int status = 0; 27881da177e4SLinus Torvalds 27891da177e4SLinus Torvalds *res = 0; 27901da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 27911da177e4SLinus Torvalds return -EIO; 27921da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 27931da177e4SLinus Torvalds READ_BUF(8); 27941da177e4SLinus Torvalds READ64(*res); 27951da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 27961da177e4SLinus Torvalds } 27973110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 27981da177e4SLinus Torvalds return status; 27991da177e4SLinus Torvalds } 28001da177e4SLinus Torvalds 28011da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28021da177e4SLinus Torvalds { 28038687b63aSAl Viro __be32 *p; 28041da177e4SLinus Torvalds int status = 0; 28051da177e4SLinus Torvalds 28061da177e4SLinus Torvalds *res = 0; 28071da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 28081da177e4SLinus Torvalds return -EIO; 28091da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 28101da177e4SLinus Torvalds READ_BUF(8); 28111da177e4SLinus Torvalds READ64(*res); 28121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 28131da177e4SLinus Torvalds } 28143110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 28151da177e4SLinus Torvalds return status; 28161da177e4SLinus Torvalds } 28171da177e4SLinus Torvalds 28181da177e4SLinus Torvalds static int decode_attr_files_total(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_TOTAL - 1U))) 28251da177e4SLinus Torvalds return -EIO; 28261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 28271da177e4SLinus Torvalds READ_BUF(8); 28281da177e4SLinus Torvalds READ64(*res); 28291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 28301da177e4SLinus Torvalds } 28313110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 28321da177e4SLinus Torvalds return status; 28331da177e4SLinus Torvalds } 28341da177e4SLinus Torvalds 28357aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 28367aaa0b3bSManoj Naik { 2837464ad6b1SChuck Lever u32 n; 28388687b63aSAl Viro __be32 *p; 28397aaa0b3bSManoj Naik int status = 0; 28407aaa0b3bSManoj Naik 28417aaa0b3bSManoj Naik READ_BUF(4); 28427aaa0b3bSManoj Naik READ32(n); 284333a43f28SAndy Adamson if (n == 0) 284433a43f28SAndy Adamson goto root_path; 28457aaa0b3bSManoj Naik dprintk("path "); 28467aaa0b3bSManoj Naik path->ncomponents = 0; 28477aaa0b3bSManoj Naik while (path->ncomponents < n) { 28487aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 28497aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 28507aaa0b3bSManoj Naik if (unlikely(status != 0)) 28517aaa0b3bSManoj Naik goto out_eio; 28527aaa0b3bSManoj Naik if (path->ncomponents != n) 28537aaa0b3bSManoj Naik dprintk("/"); 28547aaa0b3bSManoj Naik dprintk("%s", component->data); 28557aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 28567aaa0b3bSManoj Naik path->ncomponents++; 28577aaa0b3bSManoj Naik else { 28587aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 28597aaa0b3bSManoj Naik goto out_eio; 28607aaa0b3bSManoj Naik } 28617aaa0b3bSManoj Naik } 28627aaa0b3bSManoj Naik out: 28637aaa0b3bSManoj Naik dprintk("\n"); 28647aaa0b3bSManoj Naik return status; 286533a43f28SAndy Adamson root_path: 286633a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 286733a43f28SAndy Adamson path->ncomponents = 1; 286833a43f28SAndy Adamson path->components[0].len=0; 286933a43f28SAndy Adamson path->components[0].data=NULL; 287033a43f28SAndy Adamson dprintk("path /\n"); 287133a43f28SAndy Adamson goto out; 28727aaa0b3bSManoj Naik out_eio: 28737aaa0b3bSManoj Naik dprintk(" status %d", status); 28747aaa0b3bSManoj Naik status = -EIO; 28757aaa0b3bSManoj Naik goto out; 28767aaa0b3bSManoj Naik } 28777aaa0b3bSManoj Naik 28787aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2879683b57b4STrond Myklebust { 2880683b57b4STrond Myklebust int n; 28818687b63aSAl Viro __be32 *p; 2882683b57b4STrond Myklebust int status = -EIO; 2883683b57b4STrond Myklebust 2884683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2885683b57b4STrond Myklebust goto out; 2886683b57b4STrond Myklebust status = 0; 2887683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2888683b57b4STrond Myklebust goto out; 28893110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 28907aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2891683b57b4STrond Myklebust if (unlikely(status != 0)) 2892683b57b4STrond Myklebust goto out; 2893683b57b4STrond Myklebust READ_BUF(4); 2894683b57b4STrond Myklebust READ32(n); 2895683b57b4STrond Myklebust if (n <= 0) 2896683b57b4STrond Myklebust goto out_eio; 2897683b57b4STrond Myklebust res->nlocations = 0; 2898683b57b4STrond Myklebust while (res->nlocations < n) { 2899464ad6b1SChuck Lever u32 m; 29007aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2901683b57b4STrond Myklebust 29027aaa0b3bSManoj Naik READ_BUF(4); 29037aaa0b3bSManoj Naik READ32(m); 29047aaa0b3bSManoj Naik 29057aaa0b3bSManoj Naik loc->nservers = 0; 29063110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 29077aaa0b3bSManoj Naik while (loc->nservers < m) { 29087aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 29097aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2910683b57b4STrond Myklebust if (unlikely(status != 0)) 2911683b57b4STrond Myklebust goto out_eio; 29127aaa0b3bSManoj Naik dprintk("%s ", server->data); 29137aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 29147aaa0b3bSManoj Naik loc->nservers++; 29157aaa0b3bSManoj Naik else { 2916464ad6b1SChuck Lever unsigned int i; 2917464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2918464ad6b1SChuck Lever "returned for location %u\n", 29193110ff80SHarvey Harrison __func__, 2920464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2921464ad6b1SChuck Lever m, res->nlocations); 29227aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 29232e42c3e2STrond Myklebust unsigned int len; 29247aaa0b3bSManoj Naik char *data; 29257aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2926683b57b4STrond Myklebust if (unlikely(status != 0)) 2927683b57b4STrond Myklebust goto out_eio; 29287aaa0b3bSManoj Naik } 29297aaa0b3bSManoj Naik } 29307aaa0b3bSManoj Naik } 29317aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 29327aaa0b3bSManoj Naik if (unlikely(status != 0)) 29337aaa0b3bSManoj Naik goto out_eio; 29347aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2935683b57b4STrond Myklebust res->nlocations++; 2936683b57b4STrond Myklebust } 2937409924e4STrond Myklebust if (res->nlocations != 0) 2938409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 2939683b57b4STrond Myklebust out: 29403110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2941683b57b4STrond Myklebust return status; 2942683b57b4STrond Myklebust out_eio: 2943683b57b4STrond Myklebust status = -EIO; 2944683b57b4STrond Myklebust goto out; 2945683b57b4STrond Myklebust } 2946683b57b4STrond Myklebust 29471da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29481da177e4SLinus Torvalds { 29498687b63aSAl Viro __be32 *p; 29501da177e4SLinus Torvalds int status = 0; 29511da177e4SLinus Torvalds 29521da177e4SLinus Torvalds *res = 0; 29531da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 29541da177e4SLinus Torvalds return -EIO; 29551da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 29561da177e4SLinus Torvalds READ_BUF(8); 29571da177e4SLinus Torvalds READ64(*res); 29581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 29591da177e4SLinus Torvalds } 29603110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 29611da177e4SLinus Torvalds return status; 29621da177e4SLinus Torvalds } 29631da177e4SLinus Torvalds 29641da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 29651da177e4SLinus Torvalds { 29668687b63aSAl Viro __be32 *p; 29671da177e4SLinus Torvalds int status = 0; 29681da177e4SLinus Torvalds 29691da177e4SLinus Torvalds *maxlink = 1; 29701da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 29711da177e4SLinus Torvalds return -EIO; 29721da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 29731da177e4SLinus Torvalds READ_BUF(4); 29741da177e4SLinus Torvalds READ32(*maxlink); 29751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 29761da177e4SLinus Torvalds } 29773110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 29781da177e4SLinus Torvalds return status; 29791da177e4SLinus Torvalds } 29801da177e4SLinus Torvalds 29811da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 29821da177e4SLinus Torvalds { 29838687b63aSAl Viro __be32 *p; 29841da177e4SLinus Torvalds int status = 0; 29851da177e4SLinus Torvalds 29861da177e4SLinus Torvalds *maxname = 1024; 29871da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 29881da177e4SLinus Torvalds return -EIO; 29891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 29901da177e4SLinus Torvalds READ_BUF(4); 29911da177e4SLinus Torvalds READ32(*maxname); 29921da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 29931da177e4SLinus Torvalds } 29943110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 29951da177e4SLinus Torvalds return status; 29961da177e4SLinus Torvalds } 29971da177e4SLinus Torvalds 29981da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29991da177e4SLinus Torvalds { 30008687b63aSAl Viro __be32 *p; 30011da177e4SLinus Torvalds int status = 0; 30021da177e4SLinus Torvalds 30031da177e4SLinus Torvalds *res = 1024; 30041da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 30051da177e4SLinus Torvalds return -EIO; 30061da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 30071da177e4SLinus Torvalds uint64_t maxread; 30081da177e4SLinus Torvalds READ_BUF(8); 30091da177e4SLinus Torvalds READ64(maxread); 30101da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 30111da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 30121da177e4SLinus Torvalds *res = (uint32_t)maxread; 30131da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 30141da177e4SLinus Torvalds } 30153110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 30161da177e4SLinus Torvalds return status; 30171da177e4SLinus Torvalds } 30181da177e4SLinus Torvalds 30191da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 30201da177e4SLinus Torvalds { 30218687b63aSAl Viro __be32 *p; 30221da177e4SLinus Torvalds int status = 0; 30231da177e4SLinus Torvalds 30241da177e4SLinus Torvalds *res = 1024; 30251da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 30261da177e4SLinus Torvalds return -EIO; 30271da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 30281da177e4SLinus Torvalds uint64_t maxwrite; 30291da177e4SLinus Torvalds READ_BUF(8); 30301da177e4SLinus Torvalds READ64(maxwrite); 30311da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 30321da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 30331da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 30341da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 30351da177e4SLinus Torvalds } 30363110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 30371da177e4SLinus Torvalds return status; 30381da177e4SLinus Torvalds } 30391da177e4SLinus Torvalds 3040bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 30411da177e4SLinus Torvalds { 3042bca79478STrond Myklebust uint32_t tmp; 30438687b63aSAl Viro __be32 *p; 3044409924e4STrond Myklebust int ret = 0; 30451da177e4SLinus Torvalds 30461da177e4SLinus Torvalds *mode = 0; 30471da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 30481da177e4SLinus Torvalds return -EIO; 30491da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 30501da177e4SLinus Torvalds READ_BUF(4); 3051bca79478STrond Myklebust READ32(tmp); 3052bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 30531da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3054409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 30551da177e4SLinus Torvalds } 30563110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3057409924e4STrond Myklebust return ret; 30581da177e4SLinus Torvalds } 30591da177e4SLinus Torvalds 30601da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 30611da177e4SLinus Torvalds { 30628687b63aSAl Viro __be32 *p; 3063409924e4STrond Myklebust int ret = 0; 30641da177e4SLinus Torvalds 30651da177e4SLinus Torvalds *nlink = 1; 30661da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 30671da177e4SLinus Torvalds return -EIO; 30681da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 30691da177e4SLinus Torvalds READ_BUF(4); 30701da177e4SLinus Torvalds READ32(*nlink); 30711da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3072409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 30731da177e4SLinus Torvalds } 30743110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3075409924e4STrond Myklebust return ret; 30761da177e4SLinus Torvalds } 30771da177e4SLinus Torvalds 30782e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 30791da177e4SLinus Torvalds { 30808687b63aSAl Viro uint32_t len; 30818687b63aSAl Viro __be32 *p; 3082409924e4STrond Myklebust int ret = 0; 30831da177e4SLinus Torvalds 30841da177e4SLinus Torvalds *uid = -2; 30851da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 30861da177e4SLinus Torvalds return -EIO; 30871da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 30881da177e4SLinus Torvalds READ_BUF(4); 30891da177e4SLinus Torvalds READ32(len); 30901da177e4SLinus Torvalds READ_BUF(len); 30911da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3092409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3093409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3094409924e4STrond Myklebust else 30951da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 30963110ff80SHarvey Harrison __func__); 30971da177e4SLinus Torvalds } else 3098fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 30993110ff80SHarvey Harrison __func__, len); 31001da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 31011da177e4SLinus Torvalds } 31023110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3103409924e4STrond Myklebust return ret; 31041da177e4SLinus Torvalds } 31051da177e4SLinus Torvalds 31062e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 31071da177e4SLinus Torvalds { 31088687b63aSAl Viro uint32_t len; 31098687b63aSAl Viro __be32 *p; 3110409924e4STrond Myklebust int ret = 0; 31111da177e4SLinus Torvalds 31121da177e4SLinus Torvalds *gid = -2; 31131da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 31141da177e4SLinus Torvalds return -EIO; 31151da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 31161da177e4SLinus Torvalds READ_BUF(4); 31171da177e4SLinus Torvalds READ32(len); 31181da177e4SLinus Torvalds READ_BUF(len); 31191da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3120409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3121409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3122409924e4STrond Myklebust else 31231da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 31243110ff80SHarvey Harrison __func__); 31251da177e4SLinus Torvalds } else 3126fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 31273110ff80SHarvey Harrison __func__, len); 31281da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 31291da177e4SLinus Torvalds } 31303110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3131409924e4STrond Myklebust return ret; 31321da177e4SLinus Torvalds } 31331da177e4SLinus Torvalds 31341da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 31351da177e4SLinus Torvalds { 31368687b63aSAl Viro uint32_t major = 0, minor = 0; 31378687b63aSAl Viro __be32 *p; 3138409924e4STrond Myklebust int ret = 0; 31391da177e4SLinus Torvalds 31401da177e4SLinus Torvalds *rdev = MKDEV(0,0); 31411da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 31421da177e4SLinus Torvalds return -EIO; 31431da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 31441da177e4SLinus Torvalds dev_t tmp; 31451da177e4SLinus Torvalds 31461da177e4SLinus Torvalds READ_BUF(8); 31471da177e4SLinus Torvalds READ32(major); 31481da177e4SLinus Torvalds READ32(minor); 31491da177e4SLinus Torvalds tmp = MKDEV(major, minor); 31501da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 31511da177e4SLinus Torvalds *rdev = tmp; 31521da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3153409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 31541da177e4SLinus Torvalds } 31553110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3156409924e4STrond Myklebust return ret; 31571da177e4SLinus Torvalds } 31581da177e4SLinus Torvalds 31591da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31601da177e4SLinus Torvalds { 31618687b63aSAl Viro __be32 *p; 31621da177e4SLinus Torvalds int status = 0; 31631da177e4SLinus Torvalds 31641da177e4SLinus Torvalds *res = 0; 31651da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 31661da177e4SLinus Torvalds return -EIO; 31671da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 31681da177e4SLinus Torvalds READ_BUF(8); 31691da177e4SLinus Torvalds READ64(*res); 31701da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 31711da177e4SLinus Torvalds } 31723110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 31731da177e4SLinus Torvalds return status; 31741da177e4SLinus Torvalds } 31751da177e4SLinus Torvalds 31761da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31771da177e4SLinus Torvalds { 31788687b63aSAl Viro __be32 *p; 31791da177e4SLinus Torvalds int status = 0; 31801da177e4SLinus Torvalds 31811da177e4SLinus Torvalds *res = 0; 31821da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 31831da177e4SLinus Torvalds return -EIO; 31841da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 31851da177e4SLinus Torvalds READ_BUF(8); 31861da177e4SLinus Torvalds READ64(*res); 31871da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 31881da177e4SLinus Torvalds } 31893110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 31901da177e4SLinus Torvalds return status; 31911da177e4SLinus Torvalds } 31921da177e4SLinus Torvalds 31931da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31941da177e4SLinus Torvalds { 31958687b63aSAl Viro __be32 *p; 31961da177e4SLinus Torvalds int status = 0; 31971da177e4SLinus Torvalds 31981da177e4SLinus Torvalds *res = 0; 31991da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 32001da177e4SLinus Torvalds return -EIO; 32011da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 32021da177e4SLinus Torvalds READ_BUF(8); 32031da177e4SLinus Torvalds READ64(*res); 32041da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 32051da177e4SLinus Torvalds } 32063110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 32071da177e4SLinus Torvalds return status; 32081da177e4SLinus Torvalds } 32091da177e4SLinus Torvalds 32101da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 32111da177e4SLinus Torvalds { 32128687b63aSAl Viro __be32 *p; 3213409924e4STrond Myklebust int ret = 0; 32141da177e4SLinus Torvalds 32151da177e4SLinus Torvalds *used = 0; 32161da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 32171da177e4SLinus Torvalds return -EIO; 32181da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 32191da177e4SLinus Torvalds READ_BUF(8); 32201da177e4SLinus Torvalds READ64(*used); 32211da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3222409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 32231da177e4SLinus Torvalds } 32243110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 32251da177e4SLinus Torvalds (unsigned long long)*used); 3226409924e4STrond Myklebust return ret; 32271da177e4SLinus Torvalds } 32281da177e4SLinus Torvalds 32291da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 32301da177e4SLinus Torvalds { 32318687b63aSAl Viro __be32 *p; 32321da177e4SLinus Torvalds uint64_t sec; 32331da177e4SLinus Torvalds uint32_t nsec; 32341da177e4SLinus Torvalds 32351da177e4SLinus Torvalds READ_BUF(12); 32361da177e4SLinus Torvalds READ64(sec); 32371da177e4SLinus Torvalds READ32(nsec); 32381da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 32391da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 32401da177e4SLinus Torvalds return 0; 32411da177e4SLinus Torvalds } 32421da177e4SLinus Torvalds 32431da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32441da177e4SLinus Torvalds { 32451da177e4SLinus Torvalds int status = 0; 32461da177e4SLinus Torvalds 32471da177e4SLinus Torvalds time->tv_sec = 0; 32481da177e4SLinus Torvalds time->tv_nsec = 0; 32491da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 32501da177e4SLinus Torvalds return -EIO; 32511da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 32521da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3253409924e4STrond Myklebust if (status == 0) 3254409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 32551da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 32561da177e4SLinus Torvalds } 32573110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 32581da177e4SLinus Torvalds return status; 32591da177e4SLinus Torvalds } 32601da177e4SLinus Torvalds 32611da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32621da177e4SLinus Torvalds { 32631da177e4SLinus Torvalds int status = 0; 32641da177e4SLinus Torvalds 32651da177e4SLinus Torvalds time->tv_sec = 0; 32661da177e4SLinus Torvalds time->tv_nsec = 0; 32671da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 32681da177e4SLinus Torvalds return -EIO; 32691da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 32701da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3271409924e4STrond Myklebust if (status == 0) 3272409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 32731da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 32741da177e4SLinus Torvalds } 32753110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 32761da177e4SLinus Torvalds return status; 32771da177e4SLinus Torvalds } 32781da177e4SLinus Torvalds 32791da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32801da177e4SLinus Torvalds { 32811da177e4SLinus Torvalds int status = 0; 32821da177e4SLinus Torvalds 32831da177e4SLinus Torvalds time->tv_sec = 0; 32841da177e4SLinus Torvalds time->tv_nsec = 0; 32851da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 32861da177e4SLinus Torvalds return -EIO; 32871da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 32881da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3289409924e4STrond Myklebust if (status == 0) 3290409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 32911da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 32921da177e4SLinus Torvalds } 32933110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 32941da177e4SLinus Torvalds return status; 32951da177e4SLinus Torvalds } 32961da177e4SLinus Torvalds 32978687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 32981da177e4SLinus Torvalds { 32991da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 33001da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 33011da177e4SLinus Torvalds 33021da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3303fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3304fe82a183SChuck Lever "%u %c %u\n", 33053110ff80SHarvey Harrison __func__, 33061da177e4SLinus Torvalds attrwords << 2, 33071da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 33081da177e4SLinus Torvalds nwords << 2); 33091da177e4SLinus Torvalds return -EIO; 33101da177e4SLinus Torvalds } 33111da177e4SLinus Torvalds return 0; 33121da177e4SLinus Torvalds } 33131da177e4SLinus Torvalds 33141da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 33151da177e4SLinus Torvalds { 33168687b63aSAl Viro __be32 *p; 33171da177e4SLinus Torvalds 33181da177e4SLinus Torvalds READ_BUF(20); 33191da177e4SLinus Torvalds READ32(cinfo->atomic); 33201da177e4SLinus Torvalds READ64(cinfo->before); 33211da177e4SLinus Torvalds READ64(cinfo->after); 33221da177e4SLinus Torvalds return 0; 33231da177e4SLinus Torvalds } 33241da177e4SLinus Torvalds 33251da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 33261da177e4SLinus Torvalds { 33278687b63aSAl Viro __be32 *p; 33281da177e4SLinus Torvalds uint32_t supp, acc; 33291da177e4SLinus Torvalds int status; 33301da177e4SLinus Torvalds 33311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 33321da177e4SLinus Torvalds if (status) 33331da177e4SLinus Torvalds return status; 33341da177e4SLinus Torvalds READ_BUF(8); 33351da177e4SLinus Torvalds READ32(supp); 33361da177e4SLinus Torvalds READ32(acc); 33371da177e4SLinus Torvalds access->supported = supp; 33381da177e4SLinus Torvalds access->access = acc; 33391da177e4SLinus Torvalds return 0; 33401da177e4SLinus Torvalds } 33411da177e4SLinus Torvalds 33421da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 33431da177e4SLinus Torvalds { 33448687b63aSAl Viro __be32 *p; 33451da177e4SLinus Torvalds int status; 33461da177e4SLinus Torvalds 33471da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3348c1d51931STrond Myklebust if (status != -EIO) 3349c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33501da177e4SLinus Torvalds if (status) 33511da177e4SLinus Torvalds return status; 33528ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33538ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33541da177e4SLinus Torvalds return 0; 33551da177e4SLinus Torvalds } 33561da177e4SLinus Torvalds 33571da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 33581da177e4SLinus Torvalds { 33598687b63aSAl Viro __be32 *p; 33601da177e4SLinus Torvalds int status; 33611da177e4SLinus Torvalds 33621da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 33631da177e4SLinus Torvalds if (status) 33641da177e4SLinus Torvalds return status; 33651da177e4SLinus Torvalds READ_BUF(8); 33661da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 33671da177e4SLinus Torvalds return 0; 33681da177e4SLinus Torvalds } 33691da177e4SLinus Torvalds 33701da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 33711da177e4SLinus Torvalds { 33728687b63aSAl Viro __be32 *p; 33731da177e4SLinus Torvalds uint32_t bmlen; 33741da177e4SLinus Torvalds int status; 33751da177e4SLinus Torvalds 33761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 33771da177e4SLinus Torvalds if (status) 33781da177e4SLinus Torvalds return status; 33791da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 33801da177e4SLinus Torvalds return status; 33811da177e4SLinus Torvalds READ_BUF(4); 33821da177e4SLinus Torvalds READ32(bmlen); 33831da177e4SLinus Torvalds READ_BUF(bmlen << 2); 33841da177e4SLinus Torvalds return 0; 33851da177e4SLinus Torvalds } 33861da177e4SLinus Torvalds 33871da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 33881da177e4SLinus Torvalds { 33898687b63aSAl Viro __be32 *savep; 33906c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 33911da177e4SLinus Torvalds int status; 33921da177e4SLinus Torvalds 33931da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 33941da177e4SLinus Torvalds goto xdr_error; 33951da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 33961da177e4SLinus Torvalds goto xdr_error; 33971da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 33981da177e4SLinus Torvalds goto xdr_error; 33991da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 34001da177e4SLinus Torvalds goto xdr_error; 34011da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 34021da177e4SLinus Torvalds goto xdr_error; 34031da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 34041da177e4SLinus Torvalds goto xdr_error; 34051da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 34061da177e4SLinus Torvalds goto xdr_error; 34071da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34081da177e4SLinus Torvalds xdr_error: 34093110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34101da177e4SLinus Torvalds return status; 34111da177e4SLinus Torvalds } 34121da177e4SLinus Torvalds 34131da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 34141da177e4SLinus Torvalds { 34158687b63aSAl Viro __be32 *savep; 34166c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 34171da177e4SLinus Torvalds int status; 34181da177e4SLinus Torvalds 34191da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 34201da177e4SLinus Torvalds goto xdr_error; 34211da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 34221da177e4SLinus Torvalds goto xdr_error; 34231da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 34241da177e4SLinus Torvalds goto xdr_error; 34251da177e4SLinus Torvalds 34261da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 34271da177e4SLinus Torvalds goto xdr_error; 34281da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 34291da177e4SLinus Torvalds goto xdr_error; 34301da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 34311da177e4SLinus Torvalds goto xdr_error; 34321da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 34331da177e4SLinus Torvalds goto xdr_error; 34341da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 34351da177e4SLinus Torvalds goto xdr_error; 34361da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 34371da177e4SLinus Torvalds goto xdr_error; 34381da177e4SLinus Torvalds 34391da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34401da177e4SLinus Torvalds xdr_error: 34413110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34421da177e4SLinus Torvalds return status; 34431da177e4SLinus Torvalds } 34441da177e4SLinus Torvalds 34451da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 34461da177e4SLinus Torvalds { 34478687b63aSAl Viro __be32 *savep; 34486c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 34491da177e4SLinus Torvalds int status; 34501da177e4SLinus Torvalds 34511da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 34521da177e4SLinus Torvalds goto xdr_error; 34531da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 34541da177e4SLinus Torvalds goto xdr_error; 34551da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 34561da177e4SLinus Torvalds goto xdr_error; 34571da177e4SLinus Torvalds 34581da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 34591da177e4SLinus Torvalds goto xdr_error; 34601da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 34611da177e4SLinus Torvalds goto xdr_error; 34621da177e4SLinus Torvalds 34631da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34641da177e4SLinus Torvalds xdr_error: 34653110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34661da177e4SLinus Torvalds return status; 34671da177e4SLinus Torvalds } 34681da177e4SLinus Torvalds 34691da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 34701da177e4SLinus Torvalds { 34718687b63aSAl Viro __be32 *savep; 34721da177e4SLinus Torvalds uint32_t attrlen, 34731da177e4SLinus Torvalds bitmap[2] = {0}, 34741da177e4SLinus Torvalds type; 3475bca79478STrond Myklebust int status; 3476bca79478STrond Myklebust umode_t fmode = 0; 347799baf625SManoj Naik uint64_t fileid; 34781da177e4SLinus Torvalds 3479f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3480f26c7a78STrond Myklebust if (status < 0) 34811da177e4SLinus Torvalds goto xdr_error; 34821da177e4SLinus Torvalds 3483f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3484f26c7a78STrond Myklebust if (status < 0) 3485f26c7a78STrond Myklebust goto xdr_error; 3486f26c7a78STrond Myklebust 3487f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3488f26c7a78STrond Myklebust if (status < 0) 34891da177e4SLinus Torvalds goto xdr_error; 34901da177e4SLinus Torvalds 34911da177e4SLinus Torvalds 3492f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3493f26c7a78STrond Myklebust if (status < 0) 34941da177e4SLinus Torvalds goto xdr_error; 3495409924e4STrond Myklebust fattr->mode = 0; 3496409924e4STrond Myklebust if (status != 0) { 3497409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3498409924e4STrond Myklebust fattr->valid |= status; 3499409924e4STrond Myklebust } 35001da177e4SLinus Torvalds 3501f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3502f26c7a78STrond Myklebust if (status < 0) 35031da177e4SLinus Torvalds goto xdr_error; 3504409924e4STrond Myklebust fattr->valid |= status; 3505f26c7a78STrond Myklebust 3506f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3507f26c7a78STrond Myklebust if (status < 0) 35081da177e4SLinus Torvalds goto xdr_error; 3509409924e4STrond Myklebust fattr->valid |= status; 3510f26c7a78STrond Myklebust 3511f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3512f26c7a78STrond Myklebust if (status < 0) 35131da177e4SLinus Torvalds goto xdr_error; 3514409924e4STrond Myklebust fattr->valid |= status; 3515f26c7a78STrond Myklebust 3516f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3517f26c7a78STrond Myklebust if (status < 0) 35181da177e4SLinus Torvalds goto xdr_error; 3519409924e4STrond Myklebust fattr->valid |= status; 3520f26c7a78STrond Myklebust 3521f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 35227aaa0b3bSManoj Naik struct nfs4_fs_locations, 3523f26c7a78STrond Myklebust fattr)); 3524f26c7a78STrond Myklebust if (status < 0) 3525683b57b4STrond Myklebust goto xdr_error; 3526409924e4STrond Myklebust fattr->valid |= status; 3527f26c7a78STrond Myklebust 3528f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3529f26c7a78STrond Myklebust if (status < 0) 35301da177e4SLinus Torvalds goto xdr_error; 3531409924e4STrond Myklebust if (status != 0) { 35321da177e4SLinus Torvalds fattr->mode |= fmode; 3533409924e4STrond Myklebust fattr->valid |= status; 3534409924e4STrond Myklebust } 3535f26c7a78STrond Myklebust 3536f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3537f26c7a78STrond Myklebust if (status < 0) 35381da177e4SLinus Torvalds goto xdr_error; 3539409924e4STrond Myklebust fattr->valid |= status; 3540f26c7a78STrond Myklebust 3541f26c7a78STrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); 3542f26c7a78STrond Myklebust if (status < 0) 35431da177e4SLinus Torvalds goto xdr_error; 3544409924e4STrond Myklebust fattr->valid |= status; 3545f26c7a78STrond Myklebust 3546f26c7a78STrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); 3547f26c7a78STrond Myklebust if (status < 0) 35481da177e4SLinus Torvalds goto xdr_error; 3549409924e4STrond Myklebust fattr->valid |= status; 3550f26c7a78STrond Myklebust 3551f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3552f26c7a78STrond Myklebust if (status < 0) 35531da177e4SLinus Torvalds goto xdr_error; 3554409924e4STrond Myklebust fattr->valid |= status; 3555f26c7a78STrond Myklebust 3556f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3557f26c7a78STrond Myklebust if (status < 0) 35581da177e4SLinus Torvalds goto xdr_error; 3559409924e4STrond Myklebust fattr->valid |= status; 3560f26c7a78STrond Myklebust 3561f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3562f26c7a78STrond Myklebust if (status < 0) 35631da177e4SLinus Torvalds goto xdr_error; 3564409924e4STrond Myklebust fattr->valid |= status; 3565f26c7a78STrond Myklebust 3566f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3567f26c7a78STrond Myklebust if (status < 0) 35681da177e4SLinus Torvalds goto xdr_error; 3569409924e4STrond Myklebust fattr->valid |= status; 3570f26c7a78STrond Myklebust 3571f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3572f26c7a78STrond Myklebust if (status < 0) 35731da177e4SLinus Torvalds goto xdr_error; 3574409924e4STrond Myklebust fattr->valid |= status; 3575f26c7a78STrond Myklebust 3576f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3577f26c7a78STrond Myklebust if (status < 0) 357899baf625SManoj Naik goto xdr_error; 3579409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 358099baf625SManoj Naik fattr->fileid = fileid; 3581409924e4STrond Myklebust fattr->valid |= status; 3582409924e4STrond Myklebust } 3583f26c7a78STrond Myklebust 3584f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 35851da177e4SLinus Torvalds xdr_error: 35863110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 35871da177e4SLinus Torvalds return status; 35881da177e4SLinus Torvalds } 35891da177e4SLinus Torvalds 35901da177e4SLinus Torvalds 35911da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 35921da177e4SLinus Torvalds { 35938687b63aSAl Viro __be32 *savep; 35941da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 35951da177e4SLinus Torvalds int status; 35961da177e4SLinus Torvalds 35971da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 35981da177e4SLinus Torvalds goto xdr_error; 35991da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 36001da177e4SLinus Torvalds goto xdr_error; 36011da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 36021da177e4SLinus Torvalds goto xdr_error; 36031da177e4SLinus Torvalds 36041da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 36051da177e4SLinus Torvalds 36061da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 36071da177e4SLinus Torvalds goto xdr_error; 36081da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 36091da177e4SLinus Torvalds goto xdr_error; 36101da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 36111da177e4SLinus Torvalds goto xdr_error; 36121da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 36131da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 36141da177e4SLinus Torvalds goto xdr_error; 36151da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 36161da177e4SLinus Torvalds 36171da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36181da177e4SLinus Torvalds xdr_error: 36193110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 36201da177e4SLinus Torvalds return status; 36211da177e4SLinus Torvalds } 36221da177e4SLinus Torvalds 36231da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 36241da177e4SLinus Torvalds { 36258687b63aSAl Viro __be32 *p; 36261da177e4SLinus Torvalds uint32_t len; 36271da177e4SLinus Torvalds int status; 36281da177e4SLinus Torvalds 36299936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 36309936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 36319936781dSTrond Myklebust 36321da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 36331da177e4SLinus Torvalds if (status) 36341da177e4SLinus Torvalds return status; 36351da177e4SLinus Torvalds 36361da177e4SLinus Torvalds READ_BUF(4); 36371da177e4SLinus Torvalds READ32(len); 36381da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 36391da177e4SLinus Torvalds return -EIO; 36401da177e4SLinus Torvalds fh->size = len; 36411da177e4SLinus Torvalds READ_BUF(len); 36421da177e4SLinus Torvalds COPYMEM(fh->data, len); 36431da177e4SLinus Torvalds return 0; 36441da177e4SLinus Torvalds } 36451da177e4SLinus Torvalds 36461da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36471da177e4SLinus Torvalds { 36481da177e4SLinus Torvalds int status; 36491da177e4SLinus Torvalds 36501da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 36511da177e4SLinus Torvalds if (status) 36521da177e4SLinus Torvalds return status; 36531da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 36541da177e4SLinus Torvalds } 36551da177e4SLinus Torvalds 36561da177e4SLinus Torvalds /* 36571da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 36581da177e4SLinus Torvalds */ 3659911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 36601da177e4SLinus Torvalds { 3661911d1aafSTrond Myklebust uint64_t offset, length, clientid; 36628687b63aSAl Viro __be32 *p; 3663911d1aafSTrond Myklebust uint32_t namelen, type; 36641da177e4SLinus Torvalds 36651da177e4SLinus Torvalds READ_BUF(32); 3666911d1aafSTrond Myklebust READ64(offset); 3667911d1aafSTrond Myklebust READ64(length); 3668911d1aafSTrond Myklebust READ32(type); 3669911d1aafSTrond Myklebust if (fl != NULL) { 3670911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3671911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3672911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3673911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3674911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3675911d1aafSTrond Myklebust if (type & 1) 3676911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3677911d1aafSTrond Myklebust fl->fl_pid = 0; 3678911d1aafSTrond Myklebust } 3679911d1aafSTrond Myklebust READ64(clientid); 36801da177e4SLinus Torvalds READ32(namelen); 36811da177e4SLinus Torvalds READ_BUF(namelen); 36821da177e4SLinus Torvalds return -NFS4ERR_DENIED; 36831da177e4SLinus Torvalds } 36841da177e4SLinus Torvalds 3685911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 36861da177e4SLinus Torvalds { 36878687b63aSAl Viro __be32 *p; 36881da177e4SLinus Torvalds int status; 36891da177e4SLinus Torvalds 36901da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3691c1d51931STrond Myklebust if (status == -EIO) 3692c1d51931STrond Myklebust goto out; 36931da177e4SLinus Torvalds if (status == 0) { 36948ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 36958ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 36961da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3697c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3698c1d51931STrond Myklebust if (res->open_seqid != NULL) 3699c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3700c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3701c1d51931STrond Myklebust out: 37021da177e4SLinus Torvalds return status; 37031da177e4SLinus Torvalds } 37041da177e4SLinus Torvalds 3705911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 37061da177e4SLinus Torvalds { 37071da177e4SLinus Torvalds int status; 37081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 37091da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3710911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 37111da177e4SLinus Torvalds return status; 37121da177e4SLinus Torvalds } 37131da177e4SLinus Torvalds 3714911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 37151da177e4SLinus Torvalds { 37168687b63aSAl Viro __be32 *p; 37171da177e4SLinus Torvalds int status; 37181da177e4SLinus Torvalds 37191da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3720c1d51931STrond Myklebust if (status != -EIO) 3721c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 37221da177e4SLinus Torvalds if (status == 0) { 37238ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37248ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37251da177e4SLinus Torvalds } 37261da177e4SLinus Torvalds return status; 37271da177e4SLinus Torvalds } 37281da177e4SLinus Torvalds 37291da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 37301da177e4SLinus Torvalds { 37311da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 37321da177e4SLinus Torvalds } 37331da177e4SLinus Torvalds 37341da177e4SLinus Torvalds /* This is too sick! */ 37351da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 37361da177e4SLinus Torvalds { 37378687b63aSAl Viro __be32 *p; 37381da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 37391da177e4SLinus Torvalds 37401da177e4SLinus Torvalds READ_BUF(12); 37411da177e4SLinus Torvalds READ32(limit_type); 37421da177e4SLinus Torvalds switch (limit_type) { 37431da177e4SLinus Torvalds case 1: 37441da177e4SLinus Torvalds READ64(*maxsize); 37451da177e4SLinus Torvalds break; 37461da177e4SLinus Torvalds case 2: 37471da177e4SLinus Torvalds READ32(nblocks); 37481da177e4SLinus Torvalds READ32(blocksize); 37491da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 37501da177e4SLinus Torvalds } 37511da177e4SLinus Torvalds return 0; 37521da177e4SLinus Torvalds } 37531da177e4SLinus Torvalds 37541da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 37551da177e4SLinus Torvalds { 37568687b63aSAl Viro __be32 *p; 37571da177e4SLinus Torvalds uint32_t delegation_type; 37581da177e4SLinus Torvalds 37591da177e4SLinus Torvalds READ_BUF(4); 37601da177e4SLinus Torvalds READ32(delegation_type); 37611da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 37621da177e4SLinus Torvalds res->delegation_type = 0; 37631da177e4SLinus Torvalds return 0; 37641da177e4SLinus Torvalds } 37658ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 37668ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 37671da177e4SLinus Torvalds READ32(res->do_recall); 376805d564feSAndy Adamson 37691da177e4SLinus Torvalds switch (delegation_type) { 37701da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 37711da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 37721da177e4SLinus Torvalds break; 37731da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 37741da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 37751da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 37761da177e4SLinus Torvalds return -EIO; 37771da177e4SLinus Torvalds } 37787539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 37791da177e4SLinus Torvalds } 37801da177e4SLinus Torvalds 37811da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 37821da177e4SLinus Torvalds { 37838687b63aSAl Viro __be32 *p; 3784aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 37851da177e4SLinus Torvalds int status; 37861da177e4SLinus Torvalds 37871da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 3788c1d51931STrond Myklebust if (status != -EIO) 3789c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 37901da177e4SLinus Torvalds if (status) 37911da177e4SLinus Torvalds return status; 37928ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37938ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37941da177e4SLinus Torvalds 37951da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 37961da177e4SLinus Torvalds 37971da177e4SLinus Torvalds READ_BUF(8); 37981da177e4SLinus Torvalds READ32(res->rflags); 37991da177e4SLinus Torvalds READ32(bmlen); 38001da177e4SLinus Torvalds if (bmlen > 10) 38011da177e4SLinus Torvalds goto xdr_error; 38021da177e4SLinus Torvalds 38031da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3804aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3805aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3806aa53ed54SJeff Layton READ32(res->attrset[i]); 3807aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3808aa53ed54SJeff Layton res->attrset[i] = 0; 3809aa53ed54SJeff Layton 38101da177e4SLinus Torvalds return decode_delegation(xdr, res); 38111da177e4SLinus Torvalds xdr_error: 38123110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 38131da177e4SLinus Torvalds return -EIO; 38141da177e4SLinus Torvalds } 38151da177e4SLinus Torvalds 38161da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 38171da177e4SLinus Torvalds { 38188687b63aSAl Viro __be32 *p; 38191da177e4SLinus Torvalds int status; 38201da177e4SLinus Torvalds 38211da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 3822c1d51931STrond Myklebust if (status != -EIO) 3823c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 38241da177e4SLinus Torvalds if (status) 38251da177e4SLinus Torvalds return status; 38268ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 38278ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 38281da177e4SLinus Torvalds return 0; 38291da177e4SLinus Torvalds } 38301da177e4SLinus Torvalds 38311da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 38321da177e4SLinus Torvalds { 38338687b63aSAl Viro __be32 *p; 38341da177e4SLinus Torvalds int status; 38351da177e4SLinus Torvalds 38361da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 3837c1d51931STrond Myklebust if (status != -EIO) 3838c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 38391da177e4SLinus Torvalds if (status) 38401da177e4SLinus Torvalds return status; 38418ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 38428ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 38431da177e4SLinus Torvalds return 0; 38441da177e4SLinus Torvalds } 38451da177e4SLinus Torvalds 38461da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 38471da177e4SLinus Torvalds { 38481da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 38491da177e4SLinus Torvalds } 38501da177e4SLinus Torvalds 38511da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 38521da177e4SLinus Torvalds { 38531da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 38541da177e4SLinus Torvalds } 38551da177e4SLinus Torvalds 38561da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 38571da177e4SLinus Torvalds { 38581da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 38598687b63aSAl Viro __be32 *p; 38601da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 38611da177e4SLinus Torvalds int status; 38621da177e4SLinus Torvalds 38631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 38641da177e4SLinus Torvalds if (status) 38651da177e4SLinus Torvalds return status; 38661da177e4SLinus Torvalds READ_BUF(8); 38671da177e4SLinus Torvalds READ32(eof); 38681da177e4SLinus Torvalds READ32(count); 38691da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 38701da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 38711da177e4SLinus Torvalds if (count > recvd) { 3872fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 38731da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 38741da177e4SLinus Torvalds count = recvd; 38751da177e4SLinus Torvalds eof = 0; 38761da177e4SLinus Torvalds } 38771da177e4SLinus Torvalds xdr_read_pages(xdr, count); 38781da177e4SLinus Torvalds res->eof = eof; 38791da177e4SLinus Torvalds res->count = count; 38801da177e4SLinus Torvalds return 0; 38811da177e4SLinus Torvalds } 38821da177e4SLinus Torvalds 38831da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 38841da177e4SLinus Torvalds { 38851da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 38861da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 38871da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3888bcecff77SChuck Lever size_t hdrlen; 3889bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 38908687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 38917bda2cdfSJeff Layton unsigned int nr = 0; 3892bcecff77SChuck Lever int status; 38931da177e4SLinus Torvalds 38941da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 38951da177e4SLinus Torvalds if (status) 38961da177e4SLinus Torvalds return status; 38971da177e4SLinus Torvalds READ_BUF(8); 38981da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 389944109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 390044109241SFred Isaman __func__, 3901eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3902eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3903eadf4598STrond Myklebust 39041da177e4SLinus Torvalds 39051da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 39061da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 39071da177e4SLinus Torvalds if (pglen > recvd) 39081da177e4SLinus Torvalds pglen = recvd; 39091da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 39101da177e4SLinus Torvalds 39111da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 39128687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3913e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 39141da177e4SLinus Torvalds entry = p; 39157bda2cdfSJeff Layton 39167bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 39177bda2cdfSJeff Layton if ((entry + 1) > end) 39187bda2cdfSJeff Layton goto short_pkt; 39197bda2cdfSJeff Layton 39207bda2cdfSJeff Layton for (; *p++; nr++) { 3921bcecff77SChuck Lever u32 len, attrlen, xlen; 3922e8896495SDavid Howells if (end - p < 3) 39231da177e4SLinus Torvalds goto short_pkt; 3924eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 39251da177e4SLinus Torvalds p += 2; /* cookie */ 39261da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 39271da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3928fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3929fe82a183SChuck Lever len); 39301da177e4SLinus Torvalds goto err_unmap; 39311da177e4SLinus Torvalds } 3932e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3933e8896495SDavid Howells if (end - p < xlen + 1) 3934e8896495SDavid Howells goto short_pkt; 3935eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3936e8896495SDavid Howells p += xlen; 39371da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3938e8896495SDavid Howells if (end - p < len + 1) 3939e8896495SDavid Howells goto short_pkt; 39401da177e4SLinus Torvalds p += len; 39411da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3942e8896495SDavid Howells if (end - p < attrlen + 2) 39431da177e4SLinus Torvalds goto short_pkt; 3944e8896495SDavid Howells p += attrlen; /* attributes */ 39451da177e4SLinus Torvalds entry = p; 39461da177e4SLinus Torvalds } 39477bda2cdfSJeff Layton /* 39487bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 39497bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 39507bda2cdfSJeff Layton * those, just set the EOF marker. 39517bda2cdfSJeff Layton */ 39527bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 39537bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 39547bda2cdfSJeff Layton entry[1] = 1; 39557bda2cdfSJeff Layton } 39561da177e4SLinus Torvalds out: 39571da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39581da177e4SLinus Torvalds return 0; 39591da177e4SLinus Torvalds short_pkt: 39607bda2cdfSJeff Layton /* 39617bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 39627bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 39637bda2cdfSJeff Layton * response and return what we have so far. If there are no 39647bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 39657bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 39667bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 39677bda2cdfSJeff Layton * readdir starting at the last cookie. 39687bda2cdfSJeff Layton */ 39693110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 39701da177e4SLinus Torvalds entry[0] = entry[1] = 0; 39717bda2cdfSJeff Layton if (nr) 39721da177e4SLinus Torvalds goto out; 39731da177e4SLinus Torvalds err_unmap: 39741da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39751da177e4SLinus Torvalds return -errno_NFSERR_IO; 39761da177e4SLinus Torvalds } 39771da177e4SLinus Torvalds 39781da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 39791da177e4SLinus Torvalds { 39801da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 39811da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3982bcecff77SChuck Lever size_t hdrlen; 3983bcecff77SChuck Lever u32 len, recvd; 39848687b63aSAl Viro __be32 *p; 39851da177e4SLinus Torvalds char *kaddr; 39861da177e4SLinus Torvalds int status; 39871da177e4SLinus Torvalds 39881da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 39891da177e4SLinus Torvalds if (status) 39901da177e4SLinus Torvalds return status; 39911da177e4SLinus Torvalds 39921da177e4SLinus Torvalds /* Convert length of symlink */ 39931da177e4SLinus Torvalds READ_BUF(4); 39941da177e4SLinus Torvalds READ32(len); 39951da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3996fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 39971da177e4SLinus Torvalds return -ENAMETOOLONG; 39981da177e4SLinus Torvalds } 39991da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 40001da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 40011da177e4SLinus Torvalds if (recvd < len) { 4002fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 40031da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 40041da177e4SLinus Torvalds return -EIO; 40051da177e4SLinus Torvalds } 40061da177e4SLinus Torvalds xdr_read_pages(xdr, len); 40071da177e4SLinus Torvalds /* 40081da177e4SLinus Torvalds * The XDR encode routine has set things up so that 40091da177e4SLinus Torvalds * the link text will be copied directly into the 40101da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 40111da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 40121da177e4SLinus Torvalds * null-termination). 40131da177e4SLinus Torvalds */ 40141da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 40151da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 40161da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 40171da177e4SLinus Torvalds return 0; 40181da177e4SLinus Torvalds } 40191da177e4SLinus Torvalds 40201da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40211da177e4SLinus Torvalds { 40221da177e4SLinus Torvalds int status; 40231da177e4SLinus Torvalds 40241da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 40251da177e4SLinus Torvalds if (status) 40261da177e4SLinus Torvalds goto out; 40271da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 40281da177e4SLinus Torvalds out: 40291da177e4SLinus Torvalds return status; 40301da177e4SLinus Torvalds } 40311da177e4SLinus Torvalds 40321da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 40331da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 40341da177e4SLinus Torvalds { 40351da177e4SLinus Torvalds int status; 40361da177e4SLinus Torvalds 40371da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 40381da177e4SLinus Torvalds if (status) 40391da177e4SLinus Torvalds goto out; 40401da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 40411da177e4SLinus Torvalds goto out; 40421da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 40431da177e4SLinus Torvalds out: 40441da177e4SLinus Torvalds return status; 40451da177e4SLinus Torvalds } 40461da177e4SLinus Torvalds 40471da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 40481da177e4SLinus Torvalds { 40491da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 40501da177e4SLinus Torvalds } 40511da177e4SLinus Torvalds 405256ae19f3STrond Myklebust static int 405356ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 405456ae19f3STrond Myklebust { 405556ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 405656ae19f3STrond Myklebust } 405756ae19f3STrond Myklebust 4058029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4059029d105eSJ. Bruce Fields size_t *acl_len) 4060029d105eSJ. Bruce Fields { 40618687b63aSAl Viro __be32 *savep; 4062029d105eSJ. Bruce Fields uint32_t attrlen, 4063029d105eSJ. Bruce Fields bitmap[2] = {0}; 4064029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4065029d105eSJ. Bruce Fields int status; 4066029d105eSJ. Bruce Fields 4067029d105eSJ. Bruce Fields *acl_len = 0; 4068029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4069029d105eSJ. Bruce Fields goto out; 4070029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4071029d105eSJ. Bruce Fields goto out; 4072029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4073029d105eSJ. Bruce Fields goto out; 4074029d105eSJ. Bruce Fields 4075029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4076029d105eSJ. Bruce Fields return -EIO; 4077029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4078bcecff77SChuck Lever size_t hdrlen; 4079bcecff77SChuck Lever u32 recvd; 4080029d105eSJ. Bruce Fields 4081029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4082029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4083029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4084029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4085029d105eSJ. Bruce Fields if (attrlen > recvd) { 4086fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4087029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4088029d105eSJ. Bruce Fields attrlen, recvd); 4089029d105eSJ. Bruce Fields return -EINVAL; 4090029d105eSJ. Bruce Fields } 4091029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4092029d105eSJ. Bruce Fields *acl_len = attrlen; 40938c233cf9SJ. Bruce Fields } else 40948c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4095029d105eSJ. Bruce Fields 4096029d105eSJ. Bruce Fields out: 4097029d105eSJ. Bruce Fields return status; 4098029d105eSJ. Bruce Fields } 4099029d105eSJ. Bruce Fields 41001da177e4SLinus Torvalds static int 41011da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 41021da177e4SLinus Torvalds { 41031da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 41041da177e4SLinus Torvalds } 41051da177e4SLinus Torvalds 41069e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 41071da177e4SLinus Torvalds { 41088687b63aSAl Viro __be32 *p; 41091da177e4SLinus Torvalds uint32_t bmlen; 41101da177e4SLinus Torvalds int status; 41111da177e4SLinus Torvalds 41121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 41131da177e4SLinus Torvalds if (status) 41141da177e4SLinus Torvalds return status; 41151da177e4SLinus Torvalds READ_BUF(4); 41161da177e4SLinus Torvalds READ32(bmlen); 41171da177e4SLinus Torvalds READ_BUF(bmlen << 2); 41181da177e4SLinus Torvalds return 0; 41191da177e4SLinus Torvalds } 41201da177e4SLinus Torvalds 4121adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 41221da177e4SLinus Torvalds { 41238687b63aSAl Viro __be32 *p; 41241da177e4SLinus Torvalds uint32_t opnum; 41251da177e4SLinus Torvalds int32_t nfserr; 41261da177e4SLinus Torvalds 41271da177e4SLinus Torvalds READ_BUF(8); 41281da177e4SLinus Torvalds READ32(opnum); 41291da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4130fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 41311da177e4SLinus Torvalds " %d\n", opnum); 41321da177e4SLinus Torvalds return -EIO; 41331da177e4SLinus Torvalds } 41341da177e4SLinus Torvalds READ32(nfserr); 41351da177e4SLinus Torvalds if (nfserr == NFS_OK) { 41368ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 41371da177e4SLinus Torvalds READ64(clp->cl_clientid); 41388ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 41391da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 41401da177e4SLinus Torvalds uint32_t len; 41411da177e4SLinus Torvalds 41421da177e4SLinus Torvalds /* skip netid string */ 41431da177e4SLinus Torvalds READ_BUF(4); 41441da177e4SLinus Torvalds READ32(len); 41451da177e4SLinus Torvalds READ_BUF(len); 41461da177e4SLinus Torvalds 41471da177e4SLinus Torvalds /* skip uaddr string */ 41481da177e4SLinus Torvalds READ_BUF(4); 41491da177e4SLinus Torvalds READ32(len); 41501da177e4SLinus Torvalds READ_BUF(len); 41511da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 41521da177e4SLinus Torvalds } else 4153856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 41541da177e4SLinus Torvalds 41551da177e4SLinus Torvalds return 0; 41561da177e4SLinus Torvalds } 41571da177e4SLinus Torvalds 41581da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 41591da177e4SLinus Torvalds { 41601da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 41611da177e4SLinus Torvalds } 41621da177e4SLinus Torvalds 41631da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 41641da177e4SLinus Torvalds { 41658687b63aSAl Viro __be32 *p; 41661da177e4SLinus Torvalds int status; 41671da177e4SLinus Torvalds 41681da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 41691da177e4SLinus Torvalds if (status) 41701da177e4SLinus Torvalds return status; 41711da177e4SLinus Torvalds 41721da177e4SLinus Torvalds READ_BUF(16); 41731da177e4SLinus Torvalds READ32(res->count); 41741da177e4SLinus Torvalds READ32(res->verf->committed); 41751da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 41761da177e4SLinus Torvalds return 0; 41771da177e4SLinus Torvalds } 41781da177e4SLinus Torvalds 41791da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 41801da177e4SLinus Torvalds { 41811da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 41821da177e4SLinus Torvalds } 41831da177e4SLinus Torvalds 418499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 418599fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 418699fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 418799fe60d0SBenny Halevy { 418899fe60d0SBenny Halevy __be32 *p; 418999fe60d0SBenny Halevy uint32_t dummy; 419099fe60d0SBenny Halevy int status; 419199fe60d0SBenny Halevy struct nfs_client *clp = res->client; 419299fe60d0SBenny Halevy 419399fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 419499fe60d0SBenny Halevy if (status) 419599fe60d0SBenny Halevy return status; 419699fe60d0SBenny Halevy 419799fe60d0SBenny Halevy READ_BUF(8); 419899fe60d0SBenny Halevy READ64(clp->cl_ex_clid); 419999fe60d0SBenny Halevy READ_BUF(12); 420099fe60d0SBenny Halevy READ32(clp->cl_seqid); 420199fe60d0SBenny Halevy READ32(clp->cl_exchange_flags); 420299fe60d0SBenny Halevy 420399fe60d0SBenny Halevy /* We ask for SP4_NONE */ 420499fe60d0SBenny Halevy READ32(dummy); 420599fe60d0SBenny Halevy if (dummy != SP4_NONE) 420699fe60d0SBenny Halevy return -EIO; 420799fe60d0SBenny Halevy 420899fe60d0SBenny Halevy /* Throw away minor_id */ 420999fe60d0SBenny Halevy READ_BUF(8); 421099fe60d0SBenny Halevy 421199fe60d0SBenny Halevy /* Throw away Major id */ 421299fe60d0SBenny Halevy READ_BUF(4); 421399fe60d0SBenny Halevy READ32(dummy); 421499fe60d0SBenny Halevy READ_BUF(dummy); 421599fe60d0SBenny Halevy 421699fe60d0SBenny Halevy /* Throw away server_scope */ 421799fe60d0SBenny Halevy READ_BUF(4); 421899fe60d0SBenny Halevy READ32(dummy); 421999fe60d0SBenny Halevy READ_BUF(dummy); 422099fe60d0SBenny Halevy 422199fe60d0SBenny Halevy /* Throw away Implementation id array */ 422299fe60d0SBenny Halevy READ_BUF(4); 422399fe60d0SBenny Halevy READ32(dummy); 422499fe60d0SBenny Halevy READ_BUF(dummy); 422599fe60d0SBenny Halevy 422699fe60d0SBenny Halevy return 0; 422799fe60d0SBenny Halevy } 4228fc931582SAndy Adamson 4229fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4230fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4231fc931582SAndy Adamson { 4232fc931582SAndy Adamson __be32 *p; 4233fc931582SAndy Adamson u32 nr_attrs; 4234fc931582SAndy Adamson 4235fc931582SAndy Adamson READ_BUF(28); 4236fc931582SAndy Adamson READ32(attrs->headerpadsz); 4237fc931582SAndy Adamson READ32(attrs->max_rqst_sz); 4238fc931582SAndy Adamson READ32(attrs->max_resp_sz); 4239fc931582SAndy Adamson READ32(attrs->max_resp_sz_cached); 4240fc931582SAndy Adamson READ32(attrs->max_ops); 4241fc931582SAndy Adamson READ32(attrs->max_reqs); 4242fc931582SAndy Adamson READ32(nr_attrs); 4243fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4244fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4245fc931582SAndy Adamson __func__, nr_attrs); 4246fc931582SAndy Adamson return -EINVAL; 4247fc931582SAndy Adamson } 4248fc931582SAndy Adamson if (nr_attrs == 1) 4249fc931582SAndy Adamson READ_BUF(4); /* skip rdma_attrs */ 4250fc931582SAndy Adamson return 0; 4251fc931582SAndy Adamson } 4252fc931582SAndy Adamson 4253fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4254fc931582SAndy Adamson struct nfs41_create_session_res *res) 4255fc931582SAndy Adamson { 4256fc931582SAndy Adamson __be32 *p; 4257fc931582SAndy Adamson int status; 4258fc931582SAndy Adamson struct nfs_client *clp = res->client; 4259fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4260fc931582SAndy Adamson 4261fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4262fc931582SAndy Adamson 4263fc931582SAndy Adamson if (status) 4264fc931582SAndy Adamson return status; 4265fc931582SAndy Adamson 4266fc931582SAndy Adamson /* sessionid */ 4267fc931582SAndy Adamson READ_BUF(NFS4_MAX_SESSIONID_LEN); 4268fc931582SAndy Adamson COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); 4269fc931582SAndy Adamson 4270fc931582SAndy Adamson /* seqid, flags */ 4271fc931582SAndy Adamson READ_BUF(8); 4272fc931582SAndy Adamson READ32(clp->cl_seqid); 4273fc931582SAndy Adamson READ32(session->flags); 4274fc931582SAndy Adamson 4275fc931582SAndy Adamson /* Channel attributes */ 4276fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4277fc931582SAndy Adamson if (!status) 4278fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4279fc931582SAndy Adamson return status; 4280fc931582SAndy Adamson } 42810f3e66c6SAndy Adamson 42820f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 42830f3e66c6SAndy Adamson { 42840f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 42850f3e66c6SAndy Adamson } 428699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 428799fe60d0SBenny Halevy 42889b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 42899b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 42909b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 42919b7b9fccSAndy Adamson { 42929b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4293fc01cea9SAndy Adamson struct nfs4_slot *slot; 4294fc01cea9SAndy Adamson struct nfs4_sessionid id; 4295fc01cea9SAndy Adamson u32 dummy; 4296fc01cea9SAndy Adamson int status; 4297fc01cea9SAndy Adamson __be32 *p; 4298fc01cea9SAndy Adamson 42999b7b9fccSAndy Adamson if (!res->sr_session) 43009b7b9fccSAndy Adamson return 0; 43019b7b9fccSAndy Adamson 4302fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4303fc01cea9SAndy Adamson if (status) 4304fc01cea9SAndy Adamson goto out_err; 43059b7b9fccSAndy Adamson 4306fc01cea9SAndy Adamson /* 4307fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4308fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4309fc01cea9SAndy Adamson */ 4310fc01cea9SAndy Adamson status = -ESERVERFAULT; 4311fc01cea9SAndy Adamson 4312fc01cea9SAndy Adamson slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; 4313fc01cea9SAndy Adamson READ_BUF(NFS4_MAX_SESSIONID_LEN + 20); 4314fc01cea9SAndy Adamson COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN); 4315fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4316fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4317fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4318fc01cea9SAndy Adamson goto out_err; 4319fc01cea9SAndy Adamson } 4320fc01cea9SAndy Adamson /* seqid */ 4321fc01cea9SAndy Adamson READ32(dummy); 4322fc01cea9SAndy Adamson if (dummy != slot->seq_nr) { 4323fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4324fc01cea9SAndy Adamson goto out_err; 4325fc01cea9SAndy Adamson } 4326fc01cea9SAndy Adamson /* slot id */ 4327fc01cea9SAndy Adamson READ32(dummy); 4328fc01cea9SAndy Adamson if (dummy != res->sr_slotid) { 4329fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4330fc01cea9SAndy Adamson goto out_err; 4331fc01cea9SAndy Adamson } 4332fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 4333fc01cea9SAndy Adamson READ32(dummy); 4334fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 4335fc01cea9SAndy Adamson READ32(dummy); 4336fc01cea9SAndy Adamson /* result flags - currently not processed */ 4337fc01cea9SAndy Adamson READ32(dummy); 4338fc01cea9SAndy Adamson status = 0; 4339fc01cea9SAndy Adamson out_err: 4340fc01cea9SAndy Adamson res->sr_status = status; 4341fc01cea9SAndy Adamson return status; 4342fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 43439b7b9fccSAndy Adamson return 0; 4344fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 43459b7b9fccSAndy Adamson } 43469b7b9fccSAndy Adamson 43471da177e4SLinus Torvalds /* 434849c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 434949c2559eSBenny Halevy */ 435049c2559eSBenny Halevy 435149c2559eSBenny Halevy /* 43521da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 43531da177e4SLinus Torvalds */ 43548687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 43551da177e4SLinus Torvalds { 43561da177e4SLinus Torvalds struct xdr_stream xdr; 43571da177e4SLinus Torvalds struct compound_hdr hdr; 43581da177e4SLinus Torvalds int status; 43591da177e4SLinus Torvalds 43601da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43611da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43621da177e4SLinus Torvalds if (status) 43631da177e4SLinus Torvalds goto out; 43649b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43659b7b9fccSAndy Adamson if (status) 43669b7b9fccSAndy Adamson goto out; 43671da177e4SLinus Torvalds status = decode_putfh(&xdr); 43681da177e4SLinus Torvalds if (status) 43691da177e4SLinus Torvalds goto out; 43701da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4371516a6af6STrond Myklebust if (status != 0) 4372516a6af6STrond Myklebust goto out; 4373516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43741da177e4SLinus Torvalds out: 43751da177e4SLinus Torvalds return status; 43761da177e4SLinus Torvalds } 43771da177e4SLinus Torvalds 43781da177e4SLinus Torvalds /* 43791da177e4SLinus Torvalds * Decode ACCESS response 43801da177e4SLinus Torvalds */ 43818687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 43821da177e4SLinus Torvalds { 43831da177e4SLinus Torvalds struct xdr_stream xdr; 43841da177e4SLinus Torvalds struct compound_hdr hdr; 43851da177e4SLinus Torvalds int status; 43861da177e4SLinus Torvalds 43871da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43889b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 43899b7b9fccSAndy Adamson if (status) 43909b7b9fccSAndy Adamson goto out; 43919b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43929b7b9fccSAndy Adamson if (status) 43931da177e4SLinus Torvalds goto out; 439476b32999STrond Myklebust status = decode_putfh(&xdr); 439576b32999STrond Myklebust if (status != 0) 439676b32999STrond Myklebust goto out; 43971da177e4SLinus Torvalds status = decode_access(&xdr, res); 439876b32999STrond Myklebust if (status != 0) 439976b32999STrond Myklebust goto out; 440076b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 44011da177e4SLinus Torvalds out: 44021da177e4SLinus Torvalds return status; 44031da177e4SLinus Torvalds } 44041da177e4SLinus Torvalds 44051da177e4SLinus Torvalds /* 44061da177e4SLinus Torvalds * Decode LOOKUP response 44071da177e4SLinus Torvalds */ 44088687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 44091da177e4SLinus Torvalds { 44101da177e4SLinus Torvalds struct xdr_stream xdr; 44111da177e4SLinus Torvalds struct compound_hdr hdr; 44121da177e4SLinus Torvalds int status; 44131da177e4SLinus Torvalds 44141da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44159b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44169b7b9fccSAndy Adamson if (status) 44179b7b9fccSAndy Adamson goto out; 44189b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44199b7b9fccSAndy Adamson if (status) 44201da177e4SLinus Torvalds goto out; 44211da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44221da177e4SLinus Torvalds goto out; 44231da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 44241da177e4SLinus Torvalds goto out; 44251da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 44261da177e4SLinus Torvalds goto out; 44271da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 44281da177e4SLinus Torvalds out: 44291da177e4SLinus Torvalds return status; 44301da177e4SLinus Torvalds } 44311da177e4SLinus Torvalds 44321da177e4SLinus Torvalds /* 44331da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 44341da177e4SLinus Torvalds */ 44358687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 44361da177e4SLinus Torvalds { 44371da177e4SLinus Torvalds struct xdr_stream xdr; 44381da177e4SLinus Torvalds struct compound_hdr hdr; 44391da177e4SLinus Torvalds int status; 44401da177e4SLinus Torvalds 44411da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44429b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44439b7b9fccSAndy Adamson if (status) 44449b7b9fccSAndy Adamson goto out; 44459b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44469b7b9fccSAndy Adamson if (status) 44471da177e4SLinus Torvalds goto out; 44481da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 44491da177e4SLinus Torvalds goto out; 44501da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 44511da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 44521da177e4SLinus Torvalds out: 44531da177e4SLinus Torvalds return status; 44541da177e4SLinus Torvalds } 44551da177e4SLinus Torvalds 44561da177e4SLinus Torvalds /* 44571da177e4SLinus Torvalds * Decode REMOVE response 44581da177e4SLinus Torvalds */ 44594fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 44601da177e4SLinus Torvalds { 44611da177e4SLinus Torvalds struct xdr_stream xdr; 44621da177e4SLinus Torvalds struct compound_hdr hdr; 44631da177e4SLinus Torvalds int status; 44641da177e4SLinus Torvalds 44651da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44669b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44679b7b9fccSAndy Adamson if (status) 44689b7b9fccSAndy Adamson goto out; 44699b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44709b7b9fccSAndy Adamson if (status) 44711da177e4SLinus Torvalds goto out; 447216e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 447316e42959STrond Myklebust goto out; 447416e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 447516e42959STrond Myklebust goto out; 44764fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 44771da177e4SLinus Torvalds out: 44781da177e4SLinus Torvalds return status; 44791da177e4SLinus Torvalds } 44801da177e4SLinus Torvalds 44811da177e4SLinus Torvalds /* 44821da177e4SLinus Torvalds * Decode RENAME response 44831da177e4SLinus Torvalds */ 44848687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 44851da177e4SLinus Torvalds { 44861da177e4SLinus Torvalds struct xdr_stream xdr; 44871da177e4SLinus Torvalds struct compound_hdr hdr; 44881da177e4SLinus Torvalds int status; 44891da177e4SLinus Torvalds 44901da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44919b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44929b7b9fccSAndy Adamson if (status) 44939b7b9fccSAndy Adamson goto out; 44949b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44959b7b9fccSAndy Adamson if (status) 44961da177e4SLinus Torvalds goto out; 44971da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44981da177e4SLinus Torvalds goto out; 44991da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 45001da177e4SLinus Torvalds goto out; 45011da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45021da177e4SLinus Torvalds goto out; 45036caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 45046caf2c82STrond Myklebust goto out; 45056caf2c82STrond Myklebust /* Current FH is target directory */ 45066caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 45076caf2c82STrond Myklebust goto out; 45086caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 45096caf2c82STrond Myklebust goto out; 45106caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 45111da177e4SLinus Torvalds out: 45121da177e4SLinus Torvalds return status; 45131da177e4SLinus Torvalds } 45141da177e4SLinus Torvalds 45151da177e4SLinus Torvalds /* 45161da177e4SLinus Torvalds * Decode LINK response 45171da177e4SLinus Torvalds */ 45188687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 45191da177e4SLinus Torvalds { 45201da177e4SLinus Torvalds struct xdr_stream xdr; 45211da177e4SLinus Torvalds struct compound_hdr hdr; 45221da177e4SLinus Torvalds int status; 45231da177e4SLinus Torvalds 45241da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45259b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 45269b7b9fccSAndy Adamson if (status) 45279b7b9fccSAndy Adamson goto out; 45289b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45299b7b9fccSAndy Adamson if (status) 45301da177e4SLinus Torvalds goto out; 45311da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45321da177e4SLinus Torvalds goto out; 45331da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 45341da177e4SLinus Torvalds goto out; 45351da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45361da177e4SLinus Torvalds goto out; 453791ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 453891ba2eeeSTrond Myklebust goto out; 453991ba2eeeSTrond Myklebust /* 454091ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 454191ba2eeeSTrond Myklebust * filehandle. 454291ba2eeeSTrond Myklebust */ 454391ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 454491ba2eeeSTrond Myklebust goto out; 454591ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 454691ba2eeeSTrond Myklebust goto out; 454791ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 45481da177e4SLinus Torvalds out: 45491da177e4SLinus Torvalds return status; 45501da177e4SLinus Torvalds } 45511da177e4SLinus Torvalds 45521da177e4SLinus Torvalds /* 45531da177e4SLinus Torvalds * Decode CREATE response 45541da177e4SLinus Torvalds */ 45558687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 45561da177e4SLinus Torvalds { 45571da177e4SLinus Torvalds struct xdr_stream xdr; 45581da177e4SLinus Torvalds struct compound_hdr hdr; 45591da177e4SLinus Torvalds int status; 45601da177e4SLinus Torvalds 45611da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45629b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 45639b7b9fccSAndy Adamson if (status) 45649b7b9fccSAndy Adamson goto out; 45659b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45669b7b9fccSAndy Adamson if (status) 45671da177e4SLinus Torvalds goto out; 45681da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45691da177e4SLinus Torvalds goto out; 457056ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 457156ae19f3STrond Myklebust goto out; 45721da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 45731da177e4SLinus Torvalds goto out; 45741da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 45751da177e4SLinus Torvalds goto out; 457656ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 457756ae19f3STrond Myklebust goto out; 457856ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 457956ae19f3STrond Myklebust goto out; 458056ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 45811da177e4SLinus Torvalds out: 45821da177e4SLinus Torvalds return status; 45831da177e4SLinus Torvalds } 45841da177e4SLinus Torvalds 45851da177e4SLinus Torvalds /* 45861da177e4SLinus Torvalds * Decode SYMLINK response 45871da177e4SLinus Torvalds */ 45888687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 45891da177e4SLinus Torvalds { 45901da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 45911da177e4SLinus Torvalds } 45921da177e4SLinus Torvalds 45931da177e4SLinus Torvalds /* 45941da177e4SLinus Torvalds * Decode GETATTR response 45951da177e4SLinus Torvalds */ 45968687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 45971da177e4SLinus Torvalds { 45981da177e4SLinus Torvalds struct xdr_stream xdr; 45991da177e4SLinus Torvalds struct compound_hdr hdr; 46001da177e4SLinus Torvalds int status; 46011da177e4SLinus Torvalds 46021da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46031da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 46041da177e4SLinus Torvalds if (status) 46051da177e4SLinus Torvalds goto out; 46069b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46079b7b9fccSAndy Adamson if (status) 46089b7b9fccSAndy Adamson goto out; 46091da177e4SLinus Torvalds status = decode_putfh(&xdr); 46101da177e4SLinus Torvalds if (status) 46111da177e4SLinus Torvalds goto out; 46121da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 46131da177e4SLinus Torvalds out: 46141da177e4SLinus Torvalds return status; 46151da177e4SLinus Torvalds } 46161da177e4SLinus Torvalds 461723ec6965SJ. Bruce Fields /* 461823ec6965SJ. Bruce Fields * Encode an SETACL request 461923ec6965SJ. Bruce Fields */ 462023ec6965SJ. Bruce Fields static int 46218687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 462223ec6965SJ. Bruce Fields { 462323ec6965SJ. Bruce Fields struct xdr_stream xdr; 462423ec6965SJ. Bruce Fields struct compound_hdr hdr = { 462566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 462623ec6965SJ. Bruce Fields }; 462723ec6965SJ. Bruce Fields int status; 462823ec6965SJ. Bruce Fields 462923ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 46300c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 46319b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 4632cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 4633d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 4634d017931cSAndy Adamson encode_nops(&hdr); 463523ec6965SJ. Bruce Fields return status; 463623ec6965SJ. Bruce Fields } 463705d564feSAndy Adamson 463823ec6965SJ. Bruce Fields /* 463923ec6965SJ. Bruce Fields * Decode SETACL response 464023ec6965SJ. Bruce Fields */ 464123ec6965SJ. Bruce Fields static int 464273c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 464373c403a9SBenny Halevy struct nfs_setaclres *res) 464423ec6965SJ. Bruce Fields { 464523ec6965SJ. Bruce Fields struct xdr_stream xdr; 464623ec6965SJ. Bruce Fields struct compound_hdr hdr; 464723ec6965SJ. Bruce Fields int status; 464823ec6965SJ. Bruce Fields 464923ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 465023ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 465123ec6965SJ. Bruce Fields if (status) 465223ec6965SJ. Bruce Fields goto out; 46539b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46549b7b9fccSAndy Adamson if (status) 46559b7b9fccSAndy Adamson goto out; 465623ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 465723ec6965SJ. Bruce Fields if (status) 465823ec6965SJ. Bruce Fields goto out; 46599e9ecc03SBenny Halevy status = decode_setattr(&xdr); 466023ec6965SJ. Bruce Fields out: 466123ec6965SJ. Bruce Fields return status; 466223ec6965SJ. Bruce Fields } 46631da177e4SLinus Torvalds 46641da177e4SLinus Torvalds /* 4665029d105eSJ. Bruce Fields * Decode GETACL response 4666029d105eSJ. Bruce Fields */ 4667029d105eSJ. Bruce Fields static int 4668663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 4669663c79b3SBenny Halevy struct nfs_getaclres *res) 4670029d105eSJ. Bruce Fields { 4671029d105eSJ. Bruce Fields struct xdr_stream xdr; 4672029d105eSJ. Bruce Fields struct compound_hdr hdr; 4673029d105eSJ. Bruce Fields int status; 4674029d105eSJ. Bruce Fields 4675029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4676029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4677029d105eSJ. Bruce Fields if (status) 4678029d105eSJ. Bruce Fields goto out; 46799b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46809b7b9fccSAndy Adamson if (status) 46819b7b9fccSAndy Adamson goto out; 4682029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4683029d105eSJ. Bruce Fields if (status) 4684029d105eSJ. Bruce Fields goto out; 4685663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 4686029d105eSJ. Bruce Fields 4687029d105eSJ. Bruce Fields out: 4688029d105eSJ. Bruce Fields return status; 4689029d105eSJ. Bruce Fields } 4690029d105eSJ. Bruce Fields 4691029d105eSJ. Bruce Fields /* 46921da177e4SLinus Torvalds * Decode CLOSE response 46931da177e4SLinus Torvalds */ 46948687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 46951da177e4SLinus Torvalds { 46961da177e4SLinus Torvalds struct xdr_stream xdr; 46971da177e4SLinus Torvalds struct compound_hdr hdr; 46981da177e4SLinus Torvalds int status; 46991da177e4SLinus Torvalds 47001da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47011da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47021da177e4SLinus Torvalds if (status) 47031da177e4SLinus Torvalds goto out; 47049b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47059b7b9fccSAndy Adamson if (status) 47069b7b9fccSAndy Adamson goto out; 47071da177e4SLinus Torvalds status = decode_putfh(&xdr); 47081da177e4SLinus Torvalds if (status) 47091da177e4SLinus Torvalds goto out; 47101da177e4SLinus Torvalds status = decode_close(&xdr, res); 4711516a6af6STrond Myklebust if (status != 0) 4712516a6af6STrond Myklebust goto out; 4713516a6af6STrond Myklebust /* 4714516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4715516a6af6STrond Myklebust * in which case the getattr call will fail with 4716516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4717516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4718516a6af6STrond Myklebust */ 4719516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 47201da177e4SLinus Torvalds out: 47211da177e4SLinus Torvalds return status; 47221da177e4SLinus Torvalds } 47231da177e4SLinus Torvalds 47241da177e4SLinus Torvalds /* 47251da177e4SLinus Torvalds * Decode OPEN response 47261da177e4SLinus Torvalds */ 47278687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 47281da177e4SLinus Torvalds { 47291da177e4SLinus Torvalds struct xdr_stream xdr; 47301da177e4SLinus Torvalds struct compound_hdr hdr; 47311da177e4SLinus Torvalds int status; 47321da177e4SLinus Torvalds 47331da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47341da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47351da177e4SLinus Torvalds if (status) 47361da177e4SLinus Torvalds goto out; 47379b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47389b7b9fccSAndy Adamson if (status) 47399b7b9fccSAndy Adamson goto out; 47401da177e4SLinus Torvalds status = decode_putfh(&xdr); 47411da177e4SLinus Torvalds if (status) 47421da177e4SLinus Torvalds goto out; 474356ae19f3STrond Myklebust status = decode_savefh(&xdr); 474456ae19f3STrond Myklebust if (status) 474556ae19f3STrond Myklebust goto out; 47461da177e4SLinus Torvalds status = decode_open(&xdr, res); 47471da177e4SLinus Torvalds if (status) 47481da177e4SLinus Torvalds goto out; 47499936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 47501da177e4SLinus Torvalds goto out; 475156ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 475256ae19f3STrond Myklebust goto out; 4753365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 475456ae19f3STrond Myklebust goto out; 475556ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 47561da177e4SLinus Torvalds out: 47571da177e4SLinus Torvalds return status; 47581da177e4SLinus Torvalds } 47591da177e4SLinus Torvalds 47601da177e4SLinus Torvalds /* 47611da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 47621da177e4SLinus Torvalds */ 47638687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 47641da177e4SLinus Torvalds { 47651da177e4SLinus Torvalds struct xdr_stream xdr; 47661da177e4SLinus Torvalds struct compound_hdr hdr; 47671da177e4SLinus Torvalds int status; 47681da177e4SLinus Torvalds 47691da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47701da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47711da177e4SLinus Torvalds if (status) 47721da177e4SLinus Torvalds goto out; 47731da177e4SLinus Torvalds status = decode_putfh(&xdr); 47741da177e4SLinus Torvalds if (status) 47751da177e4SLinus Torvalds goto out; 47761da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 47771da177e4SLinus Torvalds out: 47781da177e4SLinus Torvalds return status; 47791da177e4SLinus Torvalds } 47801da177e4SLinus Torvalds 47811da177e4SLinus Torvalds /* 47821da177e4SLinus Torvalds * Decode OPEN response 47831da177e4SLinus Torvalds */ 47848687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 47851da177e4SLinus Torvalds { 47861da177e4SLinus Torvalds struct xdr_stream xdr; 47871da177e4SLinus Torvalds struct compound_hdr hdr; 47881da177e4SLinus Torvalds int status; 47891da177e4SLinus Torvalds 47901da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47911da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47921da177e4SLinus Torvalds if (status) 47931da177e4SLinus Torvalds goto out; 47949b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47959b7b9fccSAndy Adamson if (status) 47969b7b9fccSAndy Adamson goto out; 47971da177e4SLinus Torvalds status = decode_putfh(&xdr); 47981da177e4SLinus Torvalds if (status) 47991da177e4SLinus Torvalds goto out; 48001da177e4SLinus Torvalds status = decode_open(&xdr, res); 4801864472e9STrond Myklebust if (status) 4802864472e9STrond Myklebust goto out; 4803864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 48041da177e4SLinus Torvalds out: 48051da177e4SLinus Torvalds return status; 48061da177e4SLinus Torvalds } 48071da177e4SLinus Torvalds 48081da177e4SLinus Torvalds /* 48091da177e4SLinus Torvalds * Decode SETATTR response 48101da177e4SLinus Torvalds */ 48118687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 48121da177e4SLinus Torvalds { 48131da177e4SLinus Torvalds struct xdr_stream xdr; 48141da177e4SLinus Torvalds struct compound_hdr hdr; 48151da177e4SLinus Torvalds int status; 48161da177e4SLinus Torvalds 48171da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48181da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48191da177e4SLinus Torvalds if (status) 48201da177e4SLinus Torvalds goto out; 48219b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48229b7b9fccSAndy Adamson if (status) 48239b7b9fccSAndy Adamson goto out; 48241da177e4SLinus Torvalds status = decode_putfh(&xdr); 48251da177e4SLinus Torvalds if (status) 48261da177e4SLinus Torvalds goto out; 48279e9ecc03SBenny Halevy status = decode_setattr(&xdr); 48281da177e4SLinus Torvalds if (status) 48291da177e4SLinus Torvalds goto out; 483078f945f8STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 48311da177e4SLinus Torvalds out: 48321da177e4SLinus Torvalds return status; 48331da177e4SLinus Torvalds } 48341da177e4SLinus Torvalds 48351da177e4SLinus Torvalds /* 48361da177e4SLinus Torvalds * Decode LOCK response 48371da177e4SLinus Torvalds */ 48388687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 48391da177e4SLinus Torvalds { 48401da177e4SLinus Torvalds struct xdr_stream xdr; 48411da177e4SLinus Torvalds struct compound_hdr hdr; 48421da177e4SLinus Torvalds int status; 48431da177e4SLinus Torvalds 48441da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48451da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48461da177e4SLinus Torvalds if (status) 48471da177e4SLinus Torvalds goto out; 48489b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48499b7b9fccSAndy Adamson if (status) 48509b7b9fccSAndy Adamson goto out; 48511da177e4SLinus Torvalds status = decode_putfh(&xdr); 48521da177e4SLinus Torvalds if (status) 48531da177e4SLinus Torvalds goto out; 48541da177e4SLinus Torvalds status = decode_lock(&xdr, res); 48551da177e4SLinus Torvalds out: 48561da177e4SLinus Torvalds return status; 48571da177e4SLinus Torvalds } 48581da177e4SLinus Torvalds 48591da177e4SLinus Torvalds /* 48601da177e4SLinus Torvalds * Decode LOCKT response 48611da177e4SLinus Torvalds */ 48628687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 48631da177e4SLinus Torvalds { 48641da177e4SLinus Torvalds struct xdr_stream xdr; 48651da177e4SLinus Torvalds struct compound_hdr hdr; 48661da177e4SLinus Torvalds int status; 48671da177e4SLinus Torvalds 48681da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48691da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48701da177e4SLinus Torvalds if (status) 48711da177e4SLinus Torvalds goto out; 48729b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48739b7b9fccSAndy Adamson if (status) 48749b7b9fccSAndy Adamson goto out; 48751da177e4SLinus Torvalds status = decode_putfh(&xdr); 48761da177e4SLinus Torvalds if (status) 48771da177e4SLinus Torvalds goto out; 48781da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 48791da177e4SLinus Torvalds out: 48801da177e4SLinus Torvalds return status; 48811da177e4SLinus Torvalds } 48821da177e4SLinus Torvalds 48831da177e4SLinus Torvalds /* 48841da177e4SLinus Torvalds * Decode LOCKU response 48851da177e4SLinus Torvalds */ 48868687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 48871da177e4SLinus Torvalds { 48881da177e4SLinus Torvalds struct xdr_stream xdr; 48891da177e4SLinus Torvalds struct compound_hdr hdr; 48901da177e4SLinus Torvalds int status; 48911da177e4SLinus Torvalds 48921da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48931da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48941da177e4SLinus Torvalds if (status) 48951da177e4SLinus Torvalds goto out; 48969b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48979b7b9fccSAndy Adamson if (status) 48989b7b9fccSAndy Adamson goto out; 48991da177e4SLinus Torvalds status = decode_putfh(&xdr); 49001da177e4SLinus Torvalds if (status) 49011da177e4SLinus Torvalds goto out; 49021da177e4SLinus Torvalds status = decode_locku(&xdr, res); 49031da177e4SLinus Torvalds out: 49041da177e4SLinus Torvalds return status; 49051da177e4SLinus Torvalds } 49061da177e4SLinus Torvalds 49071da177e4SLinus Torvalds /* 49081da177e4SLinus Torvalds * Decode READLINK response 49091da177e4SLinus Torvalds */ 4910f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 4911f50c7000SBenny Halevy struct nfs4_readlink_res *res) 49121da177e4SLinus Torvalds { 49131da177e4SLinus Torvalds struct xdr_stream xdr; 49141da177e4SLinus Torvalds struct compound_hdr hdr; 49151da177e4SLinus Torvalds int status; 49161da177e4SLinus Torvalds 49171da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49181da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49191da177e4SLinus Torvalds if (status) 49201da177e4SLinus Torvalds goto out; 49219b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49229b7b9fccSAndy Adamson if (status) 49239b7b9fccSAndy Adamson goto out; 49241da177e4SLinus Torvalds status = decode_putfh(&xdr); 49251da177e4SLinus Torvalds if (status) 49261da177e4SLinus Torvalds goto out; 49271da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 49281da177e4SLinus Torvalds out: 49291da177e4SLinus Torvalds return status; 49301da177e4SLinus Torvalds } 49311da177e4SLinus Torvalds 49321da177e4SLinus Torvalds /* 49331da177e4SLinus Torvalds * Decode READDIR response 49341da177e4SLinus Torvalds */ 49358687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 49361da177e4SLinus Torvalds { 49371da177e4SLinus Torvalds struct xdr_stream xdr; 49381da177e4SLinus Torvalds struct compound_hdr hdr; 49391da177e4SLinus Torvalds int status; 49401da177e4SLinus Torvalds 49411da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49421da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49431da177e4SLinus Torvalds if (status) 49441da177e4SLinus Torvalds goto out; 49459b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49469b7b9fccSAndy Adamson if (status) 49479b7b9fccSAndy Adamson goto out; 49481da177e4SLinus Torvalds status = decode_putfh(&xdr); 49491da177e4SLinus Torvalds if (status) 49501da177e4SLinus Torvalds goto out; 49511da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 49521da177e4SLinus Torvalds out: 49531da177e4SLinus Torvalds return status; 49541da177e4SLinus Torvalds } 49551da177e4SLinus Torvalds 49561da177e4SLinus Torvalds /* 49571da177e4SLinus Torvalds * Decode Read response 49581da177e4SLinus Torvalds */ 49598687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 49601da177e4SLinus Torvalds { 49611da177e4SLinus Torvalds struct xdr_stream xdr; 49621da177e4SLinus Torvalds struct compound_hdr hdr; 49631da177e4SLinus Torvalds int status; 49641da177e4SLinus Torvalds 49651da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49661da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49671da177e4SLinus Torvalds if (status) 49681da177e4SLinus Torvalds goto out; 49699b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49709b7b9fccSAndy Adamson if (status) 49719b7b9fccSAndy Adamson goto out; 49721da177e4SLinus Torvalds status = decode_putfh(&xdr); 49731da177e4SLinus Torvalds if (status) 49741da177e4SLinus Torvalds goto out; 49751da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 49761da177e4SLinus Torvalds if (!status) 49771da177e4SLinus Torvalds status = res->count; 49781da177e4SLinus Torvalds out: 49791da177e4SLinus Torvalds return status; 49801da177e4SLinus Torvalds } 49811da177e4SLinus Torvalds 49821da177e4SLinus Torvalds /* 49831da177e4SLinus Torvalds * Decode WRITE response 49841da177e4SLinus Torvalds */ 49858687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 49861da177e4SLinus Torvalds { 49871da177e4SLinus Torvalds struct xdr_stream xdr; 49881da177e4SLinus Torvalds struct compound_hdr hdr; 49891da177e4SLinus Torvalds int status; 49901da177e4SLinus Torvalds 49911da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49921da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49931da177e4SLinus Torvalds if (status) 49941da177e4SLinus Torvalds goto out; 49959b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49969b7b9fccSAndy Adamson if (status) 49979b7b9fccSAndy Adamson goto out; 49981da177e4SLinus Torvalds status = decode_putfh(&xdr); 49991da177e4SLinus Torvalds if (status) 50001da177e4SLinus Torvalds goto out; 50011da177e4SLinus Torvalds status = decode_write(&xdr, res); 50024f9838c7STrond Myklebust if (status) 50034f9838c7STrond Myklebust goto out; 50044f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 50051da177e4SLinus Torvalds if (!status) 50061da177e4SLinus Torvalds status = res->count; 50071da177e4SLinus Torvalds out: 50081da177e4SLinus Torvalds return status; 50091da177e4SLinus Torvalds } 50101da177e4SLinus Torvalds 50111da177e4SLinus Torvalds /* 50121da177e4SLinus Torvalds * Decode COMMIT response 50131da177e4SLinus Torvalds */ 50148687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 50151da177e4SLinus Torvalds { 50161da177e4SLinus Torvalds struct xdr_stream xdr; 50171da177e4SLinus Torvalds struct compound_hdr hdr; 50181da177e4SLinus Torvalds int status; 50191da177e4SLinus Torvalds 50201da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50211da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50221da177e4SLinus Torvalds if (status) 50231da177e4SLinus Torvalds goto out; 50249b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50259b7b9fccSAndy Adamson if (status) 50269b7b9fccSAndy Adamson goto out; 50271da177e4SLinus Torvalds status = decode_putfh(&xdr); 50281da177e4SLinus Torvalds if (status) 50291da177e4SLinus Torvalds goto out; 50301da177e4SLinus Torvalds status = decode_commit(&xdr, res); 50314f9838c7STrond Myklebust if (status) 50324f9838c7STrond Myklebust goto out; 50334f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 50341da177e4SLinus Torvalds out: 50351da177e4SLinus Torvalds return status; 50361da177e4SLinus Torvalds } 50371da177e4SLinus Torvalds 50381da177e4SLinus Torvalds /* 50391da177e4SLinus Torvalds * FSINFO request 50401da177e4SLinus Torvalds */ 50413dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 50423dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 50431da177e4SLinus Torvalds { 50441da177e4SLinus Torvalds struct xdr_stream xdr; 50451da177e4SLinus Torvalds struct compound_hdr hdr; 50461da177e4SLinus Torvalds int status; 50471da177e4SLinus Torvalds 50481da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50491da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50501da177e4SLinus Torvalds if (!status) 50519b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50529b7b9fccSAndy Adamson if (!status) 50531da177e4SLinus Torvalds status = decode_putfh(&xdr); 50541da177e4SLinus Torvalds if (!status) 50553dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 50561da177e4SLinus Torvalds return status; 50571da177e4SLinus Torvalds } 50581da177e4SLinus Torvalds 50591da177e4SLinus Torvalds /* 50601da177e4SLinus Torvalds * PATHCONF request 50611da177e4SLinus Torvalds */ 5062d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5063d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 50641da177e4SLinus Torvalds { 50651da177e4SLinus Torvalds struct xdr_stream xdr; 50661da177e4SLinus Torvalds struct compound_hdr hdr; 50671da177e4SLinus Torvalds int status; 50681da177e4SLinus Torvalds 50691da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50701da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50711da177e4SLinus Torvalds if (!status) 50729b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50739b7b9fccSAndy Adamson if (!status) 50741da177e4SLinus Torvalds status = decode_putfh(&xdr); 50751da177e4SLinus Torvalds if (!status) 5076d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 50771da177e4SLinus Torvalds return status; 50781da177e4SLinus Torvalds } 50791da177e4SLinus Torvalds 50801da177e4SLinus Torvalds /* 50811da177e4SLinus Torvalds * STATFS request 50821da177e4SLinus Torvalds */ 508324ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 508424ad148aSBenny Halevy struct nfs4_statfs_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, &req->rq_rcv_buf, p); 50911da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50921da177e4SLinus Torvalds if (!status) 50939b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50949b7b9fccSAndy Adamson if (!status) 50951da177e4SLinus Torvalds status = decode_putfh(&xdr); 50961da177e4SLinus Torvalds if (!status) 509724ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 50981da177e4SLinus Torvalds return status; 50991da177e4SLinus Torvalds } 51001da177e4SLinus Torvalds 51011da177e4SLinus Torvalds /* 51021da177e4SLinus Torvalds * GETATTR_BITMAP request 51031da177e4SLinus Torvalds */ 51048687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 51051da177e4SLinus Torvalds { 51061da177e4SLinus Torvalds struct xdr_stream xdr; 51071da177e4SLinus Torvalds struct compound_hdr hdr; 51081da177e4SLinus Torvalds int status; 51091da177e4SLinus Torvalds 51101da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51119b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 51129b7b9fccSAndy Adamson if (status) 51139b7b9fccSAndy Adamson goto out; 51149b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 51159b7b9fccSAndy Adamson if (status) 51161da177e4SLinus Torvalds goto out; 51171da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 51181da177e4SLinus Torvalds goto out; 51191da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 51201da177e4SLinus Torvalds out: 51211da177e4SLinus Torvalds return status; 51221da177e4SLinus Torvalds } 51231da177e4SLinus Torvalds 51241da177e4SLinus Torvalds /* 51251da177e4SLinus Torvalds * Decode RENEW response 51261da177e4SLinus Torvalds */ 51278687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 51281da177e4SLinus Torvalds { 51291da177e4SLinus Torvalds struct xdr_stream xdr; 51301da177e4SLinus Torvalds struct compound_hdr hdr; 51311da177e4SLinus Torvalds int status; 51321da177e4SLinus Torvalds 51331da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51341da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51351da177e4SLinus Torvalds if (!status) 51361da177e4SLinus Torvalds status = decode_renew(&xdr); 51371da177e4SLinus Torvalds return status; 51381da177e4SLinus Torvalds } 51391da177e4SLinus Torvalds 51401da177e4SLinus Torvalds /* 51411da177e4SLinus Torvalds * a SETCLIENTID request 51421da177e4SLinus Torvalds */ 51438687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5144adfa6f98SDavid Howells struct nfs_client *clp) 51451da177e4SLinus Torvalds { 51461da177e4SLinus Torvalds struct xdr_stream xdr; 51471da177e4SLinus Torvalds struct compound_hdr hdr; 51481da177e4SLinus Torvalds int status; 51491da177e4SLinus Torvalds 51501da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51511da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51521da177e4SLinus Torvalds if (!status) 51531da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 51541da177e4SLinus Torvalds return status; 51551da177e4SLinus Torvalds } 51561da177e4SLinus Torvalds 51571da177e4SLinus Torvalds /* 51581da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 51591da177e4SLinus Torvalds */ 51608687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 51611da177e4SLinus Torvalds { 51621da177e4SLinus Torvalds struct xdr_stream xdr; 51631da177e4SLinus Torvalds struct compound_hdr hdr; 51641da177e4SLinus Torvalds int status; 51651da177e4SLinus Torvalds 51661da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51671da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51681da177e4SLinus Torvalds if (!status) 51691da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 51701da177e4SLinus Torvalds if (!status) 51711da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 51721da177e4SLinus Torvalds if (!status) 51731da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 51741da177e4SLinus Torvalds return status; 51751da177e4SLinus Torvalds } 51761da177e4SLinus Torvalds 51771da177e4SLinus Torvalds /* 51781da177e4SLinus Torvalds * DELEGRETURN request 51791da177e4SLinus Torvalds */ 51808687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 51811da177e4SLinus Torvalds { 51821da177e4SLinus Torvalds struct xdr_stream xdr; 51831da177e4SLinus Torvalds struct compound_hdr hdr; 51841da177e4SLinus Torvalds int status; 51851da177e4SLinus Torvalds 51861da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51871da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51889b7b9fccSAndy Adamson if (status) 51899b7b9fccSAndy Adamson goto out; 51909b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51919b7b9fccSAndy Adamson if (status) 5192fa178f29STrond Myklebust goto out; 51931da177e4SLinus Torvalds status = decode_putfh(&xdr); 5194fa178f29STrond Myklebust if (status != 0) 5195fa178f29STrond Myklebust goto out; 51961da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5197fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 5198fa178f29STrond Myklebust out: 51991da177e4SLinus Torvalds return status; 52001da177e4SLinus Torvalds } 52011da177e4SLinus Torvalds 5202683b57b4STrond Myklebust /* 5203683b57b4STrond Myklebust * FS_LOCATIONS request 5204683b57b4STrond Myklebust */ 520522958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 520622958463SBenny Halevy struct nfs4_fs_locations_res *res) 5207683b57b4STrond Myklebust { 5208683b57b4STrond Myklebust struct xdr_stream xdr; 5209683b57b4STrond Myklebust struct compound_hdr hdr; 5210683b57b4STrond Myklebust int status; 5211683b57b4STrond Myklebust 5212683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5213683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 52149b7b9fccSAndy Adamson if (status) 52159b7b9fccSAndy Adamson goto out; 52169b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 52179b7b9fccSAndy Adamson if (status) 5218683b57b4STrond Myklebust goto out; 5219683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5220683b57b4STrond Myklebust goto out; 5221683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5222683b57b4STrond Myklebust goto out; 5223683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 522422958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 522522958463SBenny Halevy res->fs_locations->server); 5226683b57b4STrond Myklebust out: 5227683b57b4STrond Myklebust return status; 5228683b57b4STrond Myklebust } 5229683b57b4STrond Myklebust 523099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 523199fe60d0SBenny Halevy /* 523299fe60d0SBenny Halevy * EXCHANGE_ID request 523399fe60d0SBenny Halevy */ 523499fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 523599fe60d0SBenny Halevy void *res) 523699fe60d0SBenny Halevy { 523799fe60d0SBenny Halevy struct xdr_stream xdr; 523899fe60d0SBenny Halevy struct compound_hdr hdr; 523999fe60d0SBenny Halevy int status; 524099fe60d0SBenny Halevy 524199fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 524299fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 524399fe60d0SBenny Halevy if (!status) 524499fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 524599fe60d0SBenny Halevy return status; 524699fe60d0SBenny Halevy } 52472050f0ccSAndy Adamson 52482050f0ccSAndy Adamson /* 5249fc931582SAndy Adamson * a CREATE_SESSION request 5250fc931582SAndy Adamson */ 5251fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5252fc931582SAndy Adamson struct nfs41_create_session_res *res) 5253fc931582SAndy Adamson { 5254fc931582SAndy Adamson struct xdr_stream xdr; 5255fc931582SAndy Adamson struct compound_hdr hdr; 5256fc931582SAndy Adamson int status; 5257fc931582SAndy Adamson 5258fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5259fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5260fc931582SAndy Adamson if (!status) 5261fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5262fc931582SAndy Adamson return status; 5263fc931582SAndy Adamson } 5264fc931582SAndy Adamson 5265fc931582SAndy Adamson /* 52660f3e66c6SAndy Adamson * a DESTROY_SESSION request 52670f3e66c6SAndy Adamson */ 52680f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 52690f3e66c6SAndy Adamson void *dummy) 52700f3e66c6SAndy Adamson { 52710f3e66c6SAndy Adamson struct xdr_stream xdr; 52720f3e66c6SAndy Adamson struct compound_hdr hdr; 52730f3e66c6SAndy Adamson int status; 52740f3e66c6SAndy Adamson 52750f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52760f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 52770f3e66c6SAndy Adamson if (!status) 52780f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 52790f3e66c6SAndy Adamson return status; 52800f3e66c6SAndy Adamson } 52810f3e66c6SAndy Adamson 52820f3e66c6SAndy Adamson /* 5283fc01cea9SAndy Adamson * a SEQUENCE request 5284fc01cea9SAndy Adamson */ 5285fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 5286fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5287fc01cea9SAndy Adamson { 5288fc01cea9SAndy Adamson struct xdr_stream xdr; 5289fc01cea9SAndy Adamson struct compound_hdr hdr; 5290fc01cea9SAndy Adamson int status; 5291fc01cea9SAndy Adamson 5292fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5293fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5294fc01cea9SAndy Adamson if (!status) 5295fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 5296fc01cea9SAndy Adamson return status; 5297fc01cea9SAndy Adamson } 5298fc01cea9SAndy Adamson 5299fc01cea9SAndy Adamson /* 53002050f0ccSAndy Adamson * a GET_LEASE_TIME request 53012050f0ccSAndy Adamson */ 53022050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 53032050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 53042050f0ccSAndy Adamson { 53052050f0ccSAndy Adamson struct xdr_stream xdr; 53062050f0ccSAndy Adamson struct compound_hdr hdr; 53072050f0ccSAndy Adamson int status; 53082050f0ccSAndy Adamson 53092050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53102050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 53112050f0ccSAndy Adamson if (!status) 53122050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 53132050f0ccSAndy Adamson if (!status) 53142050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 53152050f0ccSAndy Adamson if (!status) 53162050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 53172050f0ccSAndy Adamson return status; 53182050f0ccSAndy Adamson } 531999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 532099fe60d0SBenny Halevy 53210dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 53221da177e4SLinus Torvalds { 53231da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 53241da177e4SLinus Torvalds uint32_t len; 53251da177e4SLinus Torvalds 53261da177e4SLinus Torvalds if (!*p++) { 53271da177e4SLinus Torvalds if (!*p) 53281da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 53291da177e4SLinus Torvalds entry->eof = 1; 53301da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 53311da177e4SLinus Torvalds } 53321da177e4SLinus Torvalds 53331da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 53341da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 53351da177e4SLinus Torvalds entry->len = ntohl(*p++); 53361da177e4SLinus Torvalds entry->name = (const char *) p; 53371da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 53381da177e4SLinus Torvalds 53391da177e4SLinus Torvalds /* 53401da177e4SLinus Torvalds * In case the server doesn't return an inode number, 53411da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 53421da177e4SLinus Torvalds * since glibc seems to choke on it...) 53431da177e4SLinus Torvalds */ 53441da177e4SLinus Torvalds entry->ino = 1; 53451da177e4SLinus Torvalds 53461da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 53471da177e4SLinus Torvalds if (len-- > 0) { 53481da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 53491da177e4SLinus Torvalds if (len-- > 0) { 53501da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 53511da177e4SLinus Torvalds p += len; 53521da177e4SLinus Torvalds } 53531da177e4SLinus Torvalds } 53541da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 53551da177e4SLinus Torvalds if (len > 0) { 535697d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 535797d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 535897d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 535997d312d0SManoj Naik p++; 536097d312d0SManoj Naik len--; 536197d312d0SManoj Naik } 53621da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 53631da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 53641da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 53651da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 53661da177e4SLinus Torvalds p += len; 53671da177e4SLinus Torvalds } 53681da177e4SLinus Torvalds 53691da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 53701da177e4SLinus Torvalds return p; 53711da177e4SLinus Torvalds } 53721da177e4SLinus Torvalds 53731da177e4SLinus Torvalds /* 53741da177e4SLinus Torvalds * We need to translate between nfs status return values and 53751da177e4SLinus Torvalds * the local errno values which may not be the same. 53761da177e4SLinus Torvalds */ 53771da177e4SLinus Torvalds static struct { 53781da177e4SLinus Torvalds int stat; 53791da177e4SLinus Torvalds int errno; 53801da177e4SLinus Torvalds } nfs_errtbl[] = { 53811da177e4SLinus Torvalds { NFS4_OK, 0 }, 5382856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5383856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5384856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5385856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5386856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5387856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5388856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5389856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5390856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5391856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5392856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5393856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5394856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5395856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5396856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5397856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5398856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5399856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5400856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5401856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5402856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5403856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5404856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5405856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5406856dff3dSBenny Halevy { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, 5407856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5408856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5409856dff3dSBenny Halevy { NFS4ERR_RESOURCE, -EREMOTEIO }, 5410856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5411856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5412856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5413856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 54141da177e4SLinus Torvalds * to be handled by a 54151da177e4SLinus Torvalds * middle-layer. 54161da177e4SLinus Torvalds */ 5417856dff3dSBenny Halevy { -1, -EIO } 54181da177e4SLinus Torvalds }; 54191da177e4SLinus Torvalds 54201da177e4SLinus Torvalds /* 54211da177e4SLinus Torvalds * Convert an NFS error code to a local one. 54221da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 54231da177e4SLinus Torvalds */ 54241da177e4SLinus Torvalds static int 54250a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 54261da177e4SLinus Torvalds { 54271da177e4SLinus Torvalds int i; 54281da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 54291da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 54301da177e4SLinus Torvalds return nfs_errtbl[i].errno; 54311da177e4SLinus Torvalds } 54321da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 54331da177e4SLinus Torvalds /* The server is looney tunes. */ 5434856dff3dSBenny Halevy return -ESERVERFAULT; 54351da177e4SLinus Torvalds } 54361da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 54371da177e4SLinus Torvalds * handle it. 54381da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 54391da177e4SLinus Torvalds * not conflict with native Linux error codes. 54401da177e4SLinus Torvalds */ 5441856dff3dSBenny Halevy return -stat; 54421da177e4SLinus Torvalds } 54431da177e4SLinus Torvalds 54441da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 54451da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 54461da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 54471da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 54481da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 54492bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 54502bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5451cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5452cc0175c1SChuck Lever .p_name = #proc, \ 54531da177e4SLinus Torvalds } 54541da177e4SLinus Torvalds 54551da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 54561da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 54571da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 54581da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 54591da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 54601da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 54611da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 54621da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 54631da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 54641da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 54651da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 54661da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 54671da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 54681da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 54691da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 54701da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 54711da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 54721da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 54731da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 54741da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 54751da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 54761da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 54771da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 54781da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 54791da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 54801da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 54811da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 54821da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 54831da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 54841da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 54851da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 54861da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5487029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 548823ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5489683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 549099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 549199fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5492fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 54930f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 5494fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 54952050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 549699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 54971da177e4SLinus Torvalds }; 54981da177e4SLinus Torvalds 54991da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 55001da177e4SLinus Torvalds .number = 4, 5501e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 55021da177e4SLinus Torvalds .procs = nfs4_procedures 55031da177e4SLinus Torvalds }; 55041da177e4SLinus Torvalds 55051da177e4SLinus Torvalds /* 55061da177e4SLinus Torvalds * Local variables: 55071da177e4SLinus Torvalds * c-basic-offset: 8 55081da177e4SLinus Torvalds * End: 55091da177e4SLinus Torvalds */ 5510