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 RESERVE_SPACE(nbytes) do { \ 7161da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 7171da177e4SLinus Torvalds BUG_ON(!p); \ 7181da177e4SLinus Torvalds } while (0) 7191da177e4SLinus Torvalds 7201da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7211da177e4SLinus Torvalds { 7228687b63aSAl Viro __be32 *p; 7231da177e4SLinus Torvalds 7241da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7251da177e4SLinus Torvalds BUG_ON(p == NULL); 7261da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7271da177e4SLinus Torvalds } 7281da177e4SLinus Torvalds 7290c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7300c4e8c18SBenny Halevy struct rpc_rqst *req, 7310c4e8c18SBenny Halevy struct compound_hdr *hdr) 7321da177e4SLinus Torvalds { 7338687b63aSAl Viro __be32 *p; 7340c4e8c18SBenny Halevy struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 7350c4e8c18SBenny Halevy 7360c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7370c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7380c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7390c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7401da177e4SLinus Torvalds 7411da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7421da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 7431da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 744e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->taglen); 74593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, hdr->tag, hdr->taglen); 746e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 747d017931cSAndy Adamson hdr->nops_p = p; 748e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->nops); 749d017931cSAndy Adamson } 750d017931cSAndy Adamson 751d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 752d017931cSAndy Adamson { 753fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 754d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 7551da177e4SLinus Torvalds } 7561da177e4SLinus Torvalds 7571da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 7581da177e4SLinus Torvalds { 7598687b63aSAl Viro __be32 *p; 7601da177e4SLinus Torvalds 7611da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 7621da177e4SLinus Torvalds BUG_ON(p == NULL); 7631da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 7641da177e4SLinus Torvalds } 7651da177e4SLinus Torvalds 766cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 7671da177e4SLinus Torvalds { 7681da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 7691da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 7701da177e4SLinus Torvalds int owner_namelen = 0; 7711da177e4SLinus Torvalds int owner_grouplen = 0; 7728687b63aSAl Viro __be32 *p; 7738687b63aSAl Viro __be32 *q; 7741da177e4SLinus Torvalds int len; 7751da177e4SLinus Torvalds uint32_t bmval0 = 0; 7761da177e4SLinus Torvalds uint32_t bmval1 = 0; 7771da177e4SLinus Torvalds 7781da177e4SLinus Torvalds /* 7791da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 7801da177e4SLinus Torvalds * In the worst-case, this would be 7811da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 7821da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 78323ec6965SJ. Bruce Fields * such as owner/group. 7841da177e4SLinus Torvalds */ 7851da177e4SLinus Torvalds len = 16; 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds /* Sigh */ 7881da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 7891da177e4SLinus Torvalds len += 8; 7901da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 7911da177e4SLinus Torvalds len += 4; 7921da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 7937539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 7941da177e4SLinus Torvalds if (owner_namelen < 0) { 795fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 7961da177e4SLinus Torvalds iap->ia_uid); 7971da177e4SLinus Torvalds /* XXX */ 7981da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 7991da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8001da177e4SLinus Torvalds /* goto out; */ 8011da177e4SLinus Torvalds } 8021da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8031da177e4SLinus Torvalds } 8041da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8057539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 8061da177e4SLinus Torvalds if (owner_grouplen < 0) { 807fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8081da177e4SLinus Torvalds iap->ia_gid); 8091da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8101da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8111da177e4SLinus Torvalds /* goto out; */ 8121da177e4SLinus Torvalds } 8131da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8141da177e4SLinus Torvalds } 8151da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8161da177e4SLinus Torvalds len += 16; 8171da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8181da177e4SLinus Torvalds len += 4; 8191da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8201da177e4SLinus Torvalds len += 16; 8211da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8221da177e4SLinus Torvalds len += 4; 8231da177e4SLinus Torvalds RESERVE_SPACE(len); 8241da177e4SLinus Torvalds 8251da177e4SLinus Torvalds /* 8261da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8271da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8281da177e4SLinus Torvalds */ 829e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 8301da177e4SLinus Torvalds q = p; 8311da177e4SLinus Torvalds p += 3; 8321da177e4SLinus Torvalds 8331da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8341da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 835b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 8361da177e4SLinus Torvalds } 8371da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8381da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 839e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 8401da177e4SLinus Torvalds } 8411da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8421da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 843e75bc1c8SBenny Halevy *p++ = cpu_to_be32(owner_namelen); 84493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, owner_name, owner_namelen); 8451da177e4SLinus Torvalds } 8461da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8471da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 848e75bc1c8SBenny Halevy *p++ = cpu_to_be32(owner_grouplen); 84993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, owner_group, owner_grouplen); 8501da177e4SLinus Torvalds } 8511da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 8521da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 853e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 854e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 855e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 856e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8571da177e4SLinus Torvalds } 8581da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 8591da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 860e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8611da177e4SLinus Torvalds } 8621da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 8631da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 864e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 866e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 867e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8681da177e4SLinus Torvalds } 8691da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 8701da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 871e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8721da177e4SLinus Torvalds } 8731da177e4SLinus Torvalds 8741da177e4SLinus Torvalds /* 8751da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 8761da177e4SLinus Torvalds */ 8771da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 878fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 8791da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 8801da177e4SLinus Torvalds BUG(); 8811da177e4SLinus Torvalds } 8821da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 8831da177e4SLinus Torvalds *q++ = htonl(bmval0); 8841da177e4SLinus Torvalds *q++ = htonl(bmval1); 8851da177e4SLinus Torvalds *q++ = htonl(len); 8861da177e4SLinus Torvalds 8871da177e4SLinus Torvalds /* out: */ 8881da177e4SLinus Torvalds } 8891da177e4SLinus Torvalds 890cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 8911da177e4SLinus Torvalds { 8928687b63aSAl Viro __be32 *p; 8931da177e4SLinus Torvalds 8941da177e4SLinus Torvalds RESERVE_SPACE(8); 895e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 896e75bc1c8SBenny Halevy *p++ = cpu_to_be32(access); 897d017931cSAndy Adamson hdr->nops++; 898dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 8991da177e4SLinus Torvalds } 9001da177e4SLinus Torvalds 901cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9021da177e4SLinus Torvalds { 9038687b63aSAl Viro __be32 *p; 9041da177e4SLinus Torvalds 9058ae20abdSTrond Myklebust RESERVE_SPACE(8+NFS4_STATEID_SIZE); 906e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 907e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 90893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 909d017931cSAndy Adamson hdr->nops++; 910dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9111da177e4SLinus Torvalds } 9121da177e4SLinus Torvalds 913cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9141da177e4SLinus Torvalds { 9158687b63aSAl Viro __be32 *p; 9161da177e4SLinus Torvalds 9171da177e4SLinus Torvalds RESERVE_SPACE(16); 918e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 919b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 920e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->count); 921d017931cSAndy Adamson hdr->nops++; 922dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9231da177e4SLinus Torvalds } 9241da177e4SLinus Torvalds 925cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9261da177e4SLinus Torvalds { 9278687b63aSAl Viro __be32 *p; 9281da177e4SLinus Torvalds 9291da177e4SLinus Torvalds RESERVE_SPACE(8); 930e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 931e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->ftype); 9321da177e4SLinus Torvalds 9331da177e4SLinus Torvalds switch (create->ftype) { 9341da177e4SLinus Torvalds case NF4LNK: 93594a6d753SChuck Lever RESERVE_SPACE(4); 936e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.symlink.len); 93794a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9381da177e4SLinus Torvalds break; 9391da177e4SLinus Torvalds 9401da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 9411da177e4SLinus Torvalds RESERVE_SPACE(8); 942e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 943e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata2); 9441da177e4SLinus Torvalds break; 9451da177e4SLinus Torvalds 9461da177e4SLinus Torvalds default: 9471da177e4SLinus Torvalds break; 9481da177e4SLinus Torvalds } 9491da177e4SLinus Torvalds 9501da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 951e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->name->len); 95293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, create->name->name, create->name->len); 953d017931cSAndy Adamson hdr->nops++; 954dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 9551da177e4SLinus Torvalds 956cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 9571da177e4SLinus Torvalds } 9581da177e4SLinus Torvalds 959cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 9601da177e4SLinus Torvalds { 9618687b63aSAl Viro __be32 *p; 9621da177e4SLinus Torvalds 9631da177e4SLinus Torvalds RESERVE_SPACE(12); 964e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 965e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 966e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bitmap); 967d017931cSAndy Adamson hdr->nops++; 968dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9691da177e4SLinus Torvalds } 9701da177e4SLinus Torvalds 971cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 9721da177e4SLinus Torvalds { 9738687b63aSAl Viro __be32 *p; 9741da177e4SLinus Torvalds 9751da177e4SLinus Torvalds RESERVE_SPACE(16); 976e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 977e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 978e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 979e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm1); 980d017931cSAndy Adamson hdr->nops++; 981dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9821da177e4SLinus Torvalds } 9831da177e4SLinus Torvalds 984cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9851da177e4SLinus Torvalds { 986cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 987d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 9881da177e4SLinus Torvalds } 9891da177e4SLinus Torvalds 990cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9911da177e4SLinus Torvalds { 992cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 993d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 9941da177e4SLinus Torvalds } 9951da177e4SLinus Torvalds 996cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 997830b8e33SManoj Naik { 998cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 999cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1000830b8e33SManoj Naik } 1001830b8e33SManoj Naik 1002cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10031da177e4SLinus Torvalds { 10048687b63aSAl Viro __be32 *p; 10051da177e4SLinus Torvalds 10061da177e4SLinus Torvalds RESERVE_SPACE(4); 1007e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETFH); 1008d017931cSAndy Adamson hdr->nops++; 1009dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10101da177e4SLinus Torvalds } 10111da177e4SLinus Torvalds 1012cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10131da177e4SLinus Torvalds { 10148687b63aSAl Viro __be32 *p; 10151da177e4SLinus Torvalds 10161da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 1017e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1018e75bc1c8SBenny Halevy *p++ = cpu_to_be32(name->len); 101993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, name->name, name->len); 1020d017931cSAndy Adamson hdr->nops++; 1021dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10221da177e4SLinus Torvalds } 10231da177e4SLinus Torvalds 1024911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1025911d1aafSTrond Myklebust { 1026911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1027911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1028911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1029911d1aafSTrond Myklebust } 1030911d1aafSTrond Myklebust 1031911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1032911d1aafSTrond Myklebust { 1033911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1034911d1aafSTrond Myklebust return ~(uint64_t)0; 1035911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1036911d1aafSTrond Myklebust } 1037911d1aafSTrond Myklebust 10381da177e4SLinus Torvalds /* 10391da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 10401da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 10411da177e4SLinus Torvalds */ 1042cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 10431da177e4SLinus Torvalds { 10448687b63aSAl Viro __be32 *p; 10451da177e4SLinus Torvalds 10461da177e4SLinus Torvalds RESERVE_SPACE(32); 1047e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1048e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1049e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1050b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1051b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1052e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->new_lock_owner); 1053911d1aafSTrond Myklebust if (args->new_lock_owner){ 10549f958ab8STrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 1055e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 105693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1057e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1058b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1059e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 106093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1061b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.id); 10621da177e4SLinus Torvalds } 10631da177e4SLinus Torvalds else { 10648ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE+4); 106593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 1066e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 10671da177e4SLinus Torvalds } 1068d017931cSAndy Adamson hdr->nops++; 1069dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 10701da177e4SLinus Torvalds } 10711da177e4SLinus Torvalds 1072cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 10731da177e4SLinus Torvalds { 10748687b63aSAl Viro __be32 *p; 10751da177e4SLinus Torvalds 10769f958ab8STrond Myklebust RESERVE_SPACE(52); 1077e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1078e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1079b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1080b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1081b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1082e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 108393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1084b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.id); 1085d017931cSAndy Adamson hdr->nops++; 1086dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 10871da177e4SLinus Torvalds } 10881da177e4SLinus Torvalds 1089cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 10901da177e4SLinus Torvalds { 10918687b63aSAl Viro __be32 *p; 10921da177e4SLinus Torvalds 10938ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 1094e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1095e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1096e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 109793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1098b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1099b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1100d017931cSAndy Adamson hdr->nops++; 1101dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11021da177e4SLinus Torvalds } 11031da177e4SLinus Torvalds 1104cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11051da177e4SLinus Torvalds { 11061da177e4SLinus Torvalds int len = name->len; 11078687b63aSAl Viro __be32 *p; 11081da177e4SLinus Torvalds 11091da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 1110e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1111e75bc1c8SBenny Halevy *p++ = cpu_to_be32(len); 111293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, name->name, len); 1113d017931cSAndy Adamson hdr->nops++; 1114dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11151da177e4SLinus Torvalds } 11161da177e4SLinus Torvalds 1117dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11181da177e4SLinus Torvalds { 11198687b63aSAl Viro __be32 *p; 11201da177e4SLinus Torvalds 11211da177e4SLinus Torvalds RESERVE_SPACE(8); 1122dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11231da177e4SLinus Torvalds case FMODE_READ: 1124e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11251da177e4SLinus Torvalds break; 11261da177e4SLinus Torvalds case FMODE_WRITE: 1127e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11281da177e4SLinus Torvalds break; 11291da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1130e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11311da177e4SLinus Torvalds break; 11321da177e4SLinus Torvalds default: 1133e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11341da177e4SLinus Torvalds } 1135e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 11361da177e4SLinus Torvalds } 11371da177e4SLinus Torvalds 11381da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11391da177e4SLinus Torvalds { 11408687b63aSAl Viro __be32 *p; 11411da177e4SLinus Torvalds /* 11421da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 11431da177e4SLinus Torvalds * owner 4 = 32 11441da177e4SLinus Torvalds */ 11451da177e4SLinus Torvalds RESERVE_SPACE(8); 1146e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 1147e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 1148dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 11499f958ab8STrond Myklebust RESERVE_SPACE(28); 1150b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1151e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 115293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1153b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->id); 11541da177e4SLinus Torvalds } 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11571da177e4SLinus Torvalds { 11588687b63aSAl Viro __be32 *p; 11591da177e4SLinus Torvalds 11601da177e4SLinus Torvalds RESERVE_SPACE(4); 11611da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 11621da177e4SLinus Torvalds case 0: 1163e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_CREATE_UNCHECKED); 11641da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 11651da177e4SLinus Torvalds break; 11661da177e4SLinus Torvalds default: 1167e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 11681da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 11691da177e4SLinus Torvalds } 11701da177e4SLinus Torvalds } 11711da177e4SLinus Torvalds 11721da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11731da177e4SLinus Torvalds { 11748687b63aSAl Viro __be32 *p; 11751da177e4SLinus Torvalds 11761da177e4SLinus Torvalds RESERVE_SPACE(4); 11771da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 11781da177e4SLinus Torvalds case 0: 1179e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_NOCREATE); 11801da177e4SLinus Torvalds break; 11811da177e4SLinus Torvalds default: 11821da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 1183e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CREATE); 11841da177e4SLinus Torvalds encode_createmode(xdr, arg); 11851da177e4SLinus Torvalds } 11861da177e4SLinus Torvalds } 11871da177e4SLinus Torvalds 1188bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 11891da177e4SLinus Torvalds { 11908687b63aSAl Viro __be32 *p; 11911da177e4SLinus Torvalds 11921da177e4SLinus Torvalds RESERVE_SPACE(4); 11931da177e4SLinus Torvalds switch (delegation_type) { 11941da177e4SLinus Torvalds case 0: 1195e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 11961da177e4SLinus Torvalds break; 11971da177e4SLinus Torvalds case FMODE_READ: 1198e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 11991da177e4SLinus Torvalds break; 12001da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 1201e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 12021da177e4SLinus Torvalds break; 12031da177e4SLinus Torvalds default: 12041da177e4SLinus Torvalds BUG(); 12051da177e4SLinus Torvalds } 12061da177e4SLinus Torvalds } 12071da177e4SLinus Torvalds 12081da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12091da177e4SLinus Torvalds { 12108687b63aSAl Viro __be32 *p; 12111da177e4SLinus Torvalds 12121da177e4SLinus Torvalds RESERVE_SPACE(4); 1213e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 12141da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12151da177e4SLinus Torvalds } 12161da177e4SLinus Torvalds 1217bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12181da177e4SLinus Torvalds { 12198687b63aSAl Viro __be32 *p; 12201da177e4SLinus Torvalds 12211da177e4SLinus Torvalds RESERVE_SPACE(4); 1222e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 12231da177e4SLinus Torvalds encode_delegation_type(xdr, type); 12241da177e4SLinus Torvalds } 12251da177e4SLinus Torvalds 12261da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 12271da177e4SLinus Torvalds { 12288687b63aSAl Viro __be32 *p; 12291da177e4SLinus Torvalds 12308ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1231e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 123293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 12331da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12341da177e4SLinus Torvalds } 12351da177e4SLinus Torvalds 1236cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 12371da177e4SLinus Torvalds { 12381da177e4SLinus Torvalds encode_openhdr(xdr, arg); 12391da177e4SLinus Torvalds encode_opentype(xdr, arg); 12401da177e4SLinus Torvalds switch (arg->claim) { 12411da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 12421da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 12431da177e4SLinus Torvalds break; 12441da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 12451da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 12461da177e4SLinus Torvalds break; 12471da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 12481da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 12491da177e4SLinus Torvalds break; 12501da177e4SLinus Torvalds default: 12511da177e4SLinus Torvalds BUG(); 12521da177e4SLinus Torvalds } 1253d017931cSAndy Adamson hdr->nops++; 1254dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 12551da177e4SLinus Torvalds } 12561da177e4SLinus Torvalds 1257cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 12581da177e4SLinus Torvalds { 12598687b63aSAl Viro __be32 *p; 12601da177e4SLinus Torvalds 12618ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 1262e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 126393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 1264e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 1265d017931cSAndy Adamson hdr->nops++; 1266dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 12671da177e4SLinus Torvalds } 12681da177e4SLinus Torvalds 1269cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 12701da177e4SLinus Torvalds { 12718687b63aSAl Viro __be32 *p; 12721da177e4SLinus Torvalds 12738ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 1274e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 127593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 1276e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 1277dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1278d017931cSAndy Adamson hdr->nops++; 1279dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 12801da177e4SLinus Torvalds } 12811da177e4SLinus Torvalds 1282cf8cdbe5SAndy Adamson static void 1283d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 12841da177e4SLinus Torvalds { 12851da177e4SLinus Torvalds int len = fh->size; 12868687b63aSAl Viro __be32 *p; 12871da177e4SLinus Torvalds 12881da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 1289e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1290e75bc1c8SBenny Halevy *p++ = cpu_to_be32(len); 129193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, fh->data, len); 1292d017931cSAndy Adamson hdr->nops++; 1293dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 12941da177e4SLinus Torvalds } 12951da177e4SLinus Torvalds 1296cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12971da177e4SLinus Torvalds { 12988687b63aSAl Viro __be32 *p; 12991da177e4SLinus Torvalds 13001da177e4SLinus Torvalds RESERVE_SPACE(4); 1301e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTROOTFH); 1302d017931cSAndy Adamson hdr->nops++; 1303dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13041da177e4SLinus Torvalds } 13051da177e4SLinus Torvalds 13061da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 13071da177e4SLinus Torvalds { 13081da177e4SLinus Torvalds nfs4_stateid stateid; 13098687b63aSAl Viro __be32 *p; 13101da177e4SLinus Torvalds 13118ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE); 13121da177e4SLinus Torvalds if (ctx->state != NULL) { 13131da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 131493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 13151da177e4SLinus Torvalds } else 131693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 13171da177e4SLinus Torvalds } 13181da177e4SLinus Torvalds 1319cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13201da177e4SLinus Torvalds { 13218687b63aSAl Viro __be32 *p; 13221da177e4SLinus Torvalds 13231da177e4SLinus Torvalds RESERVE_SPACE(4); 1324e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READ); 13251da177e4SLinus Torvalds 13261da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13271da177e4SLinus Torvalds 13281da177e4SLinus Torvalds RESERVE_SPACE(12); 1329b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1330e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->count); 1331d017931cSAndy Adamson hdr->nops++; 1332dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 13331da177e4SLinus Torvalds } 13341da177e4SLinus Torvalds 1335cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 13361da177e4SLinus Torvalds { 133797d312d0SManoj Naik uint32_t attrs[2] = { 133897d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 133997d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 134097d312d0SManoj Naik }; 13418687b63aSAl Viro __be32 *p; 13421da177e4SLinus Torvalds 13438ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 1344e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READDIR); 1345b95be5a9SBenny Halevy p = xdr_encode_hyper(p, readdir->cookie); 134693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 1347e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ 1348e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count); 1349e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 135097d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 135197d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 135297d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 135397d312d0SManoj Naik else 135497d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1355e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 1356e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1357d017931cSAndy Adamson hdr->nops++; 1358dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 135944109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 136044109241SFred Isaman __func__, 1361eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1362eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1363eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1364eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1365eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 13661da177e4SLinus Torvalds } 13671da177e4SLinus Torvalds 1368cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 13691da177e4SLinus Torvalds { 13708687b63aSAl Viro __be32 *p; 13711da177e4SLinus Torvalds 13721da177e4SLinus Torvalds RESERVE_SPACE(4); 1373e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READLINK); 1374d017931cSAndy Adamson hdr->nops++; 1375dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 13761da177e4SLinus Torvalds } 13771da177e4SLinus Torvalds 1378cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13791da177e4SLinus Torvalds { 13808687b63aSAl Viro __be32 *p; 13811da177e4SLinus Torvalds 13821da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 1383e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1384e75bc1c8SBenny Halevy *p++ = cpu_to_be32(name->len); 138593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, name->name, name->len); 1386d017931cSAndy Adamson hdr->nops++; 1387dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 13881da177e4SLinus Torvalds } 13891da177e4SLinus Torvalds 1390cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 13911da177e4SLinus Torvalds { 13928687b63aSAl Viro __be32 *p; 13931da177e4SLinus Torvalds 13941da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 1395e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENAME); 1396e75bc1c8SBenny Halevy *p++ = cpu_to_be32(oldname->len); 139793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, oldname->name, oldname->len); 13981da177e4SLinus Torvalds 13991da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 1400e75bc1c8SBenny Halevy *p++ = cpu_to_be32(newname->len); 140193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, newname->name, newname->len); 1402d017931cSAndy Adamson hdr->nops++; 1403dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14041da177e4SLinus Torvalds } 14051da177e4SLinus Torvalds 1406cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14071da177e4SLinus Torvalds { 14088687b63aSAl Viro __be32 *p; 14091da177e4SLinus Torvalds 14101da177e4SLinus Torvalds RESERVE_SPACE(12); 1411e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 1412b95be5a9SBenny Halevy p = xdr_encode_hyper(p, client_stateid->cl_clientid); 1413d017931cSAndy Adamson hdr->nops++; 1414dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 14151da177e4SLinus Torvalds } 14161da177e4SLinus Torvalds 1417cf8cdbe5SAndy Adamson static void 1418d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 141956ae19f3STrond Myklebust { 14208687b63aSAl Viro __be32 *p; 142156ae19f3STrond Myklebust 142256ae19f3STrond Myklebust RESERVE_SPACE(4); 1423e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RESTOREFH); 1424d017931cSAndy Adamson hdr->nops++; 1425dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 142656ae19f3STrond Myklebust } 142756ae19f3STrond Myklebust 142856ae19f3STrond Myklebust static int 1429d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 143023ec6965SJ. Bruce Fields { 14318687b63aSAl Viro __be32 *p; 143223ec6965SJ. Bruce Fields 14338ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1434e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 143593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 143623ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 1437e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1438e75bc1c8SBenny Halevy *p++ = cpu_to_be32(FATTR4_WORD0_ACL); 143923ec6965SJ. Bruce Fields if (arg->acl_len % 4) 144023ec6965SJ. Bruce Fields return -EINVAL; 144123ec6965SJ. Bruce Fields RESERVE_SPACE(4); 1442e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->acl_len); 144323ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1444d017931cSAndy Adamson hdr->nops++; 1445dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 144623ec6965SJ. Bruce Fields return 0; 144723ec6965SJ. Bruce Fields } 144823ec6965SJ. Bruce Fields 1449cf8cdbe5SAndy Adamson static void 1450d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14511da177e4SLinus Torvalds { 14528687b63aSAl Viro __be32 *p; 14531da177e4SLinus Torvalds 14541da177e4SLinus Torvalds RESERVE_SPACE(4); 1455e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SAVEFH); 1456d017931cSAndy Adamson hdr->nops++; 1457dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 14581da177e4SLinus Torvalds } 14591da177e4SLinus Torvalds 1460cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 14611da177e4SLinus Torvalds { 14628687b63aSAl Viro __be32 *p; 14631da177e4SLinus Torvalds 14648ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1465e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 146693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1467d017931cSAndy Adamson hdr->nops++; 1468dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1469cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 14701da177e4SLinus Torvalds } 14711da177e4SLinus Torvalds 1472cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 14731da177e4SLinus Torvalds { 14748687b63aSAl Viro __be32 *p; 14751da177e4SLinus Torvalds 14768ae20abdSTrond Myklebust RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 1477e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 147893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 14791da177e4SLinus Torvalds 14801da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 14811da177e4SLinus Torvalds RESERVE_SPACE(4); 1482e75bc1c8SBenny Halevy *p++ = cpu_to_be32(setclientid->sc_prog); 14831da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 14841da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 14851da177e4SLinus Torvalds RESERVE_SPACE(4); 1486e75bc1c8SBenny Halevy *p++ = cpu_to_be32(setclientid->sc_cb_ident); 1487d017931cSAndy Adamson hdr->nops++; 1488dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 14891da177e4SLinus Torvalds } 14901da177e4SLinus Torvalds 1491cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 14921da177e4SLinus Torvalds { 14938687b63aSAl Viro __be32 *p; 14941da177e4SLinus Torvalds 14958ae20abdSTrond Myklebust RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 1496e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1497b95be5a9SBenny Halevy p = xdr_encode_hyper(p, client_state->cl_clientid); 149893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1499d017931cSAndy Adamson hdr->nops++; 1500dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15011da177e4SLinus Torvalds } 15021da177e4SLinus Torvalds 1503cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15041da177e4SLinus Torvalds { 15058687b63aSAl Viro __be32 *p; 15061da177e4SLinus Torvalds 15071da177e4SLinus Torvalds RESERVE_SPACE(4); 1508e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_WRITE); 15091da177e4SLinus Torvalds 15101da177e4SLinus Torvalds encode_stateid(xdr, args->context); 15111da177e4SLinus Torvalds 15121da177e4SLinus Torvalds RESERVE_SPACE(16); 1513b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1514e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 1515e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->count); 15161da177e4SLinus Torvalds 15171da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1518d017931cSAndy Adamson hdr->nops++; 1519dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 15201da177e4SLinus Torvalds } 15211da177e4SLinus Torvalds 1522cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15231da177e4SLinus Torvalds { 15248687b63aSAl Viro __be32 *p; 15251da177e4SLinus Torvalds 15268ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 15271da177e4SLinus Torvalds 1528e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 152993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1530d017931cSAndy Adamson hdr->nops++; 1531dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15321da177e4SLinus Torvalds } 15339b7b9fccSAndy Adamson 153499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15359b7b9fccSAndy Adamson /* NFSv4.1 operations */ 153699fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 153799fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 153899fe60d0SBenny Halevy struct compound_hdr *hdr) 153999fe60d0SBenny Halevy { 154099fe60d0SBenny Halevy __be32 *p; 154199fe60d0SBenny Halevy 154299fe60d0SBenny Halevy RESERVE_SPACE(4 + sizeof(args->verifier->data)); 1543e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 154493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 154599fe60d0SBenny Halevy 154699fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 154799fe60d0SBenny Halevy 154899fe60d0SBenny Halevy RESERVE_SPACE(12); 1549e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1550e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1551e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length implementation id array */ 155299fe60d0SBenny Halevy hdr->nops++; 155399fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 155499fe60d0SBenny Halevy } 1555fc931582SAndy Adamson 1556fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1557fc931582SAndy Adamson struct nfs41_create_session_args *args, 1558fc931582SAndy Adamson struct compound_hdr *hdr) 1559fc931582SAndy Adamson { 1560fc931582SAndy Adamson __be32 *p; 1561fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1562fc931582SAndy Adamson uint32_t len; 1563fc931582SAndy Adamson struct nfs_client *clp = args->client; 1564fc931582SAndy Adamson 1565fc931582SAndy Adamson RESERVE_SPACE(4); 1566e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1567fc931582SAndy Adamson 1568fc931582SAndy Adamson RESERVE_SPACE(8); 1569b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1570fc931582SAndy Adamson 1571fc931582SAndy Adamson RESERVE_SPACE(8); 1572e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1573e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1574fc931582SAndy Adamson 1575fc931582SAndy Adamson RESERVE_SPACE(2*28); /* 2 channel_attrs */ 1576fc931582SAndy Adamson /* Fore Channel */ 1577e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1578e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1579e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 1580e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1581e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1582e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1583e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1584fc931582SAndy Adamson 1585fc931582SAndy Adamson /* Back Channel */ 1586e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1587e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1588e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1589e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1590e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1591e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1592e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1593fc931582SAndy Adamson 1594fc931582SAndy Adamson RESERVE_SPACE(4); 1595e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1596fc931582SAndy Adamson 1597fc931582SAndy Adamson RESERVE_SPACE(4); /* # of security flavors */ 1598e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1599fc931582SAndy Adamson 1600fc931582SAndy Adamson RESERVE_SPACE(4); 1601e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1602fc931582SAndy Adamson 1603fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1604fc931582SAndy Adamson RESERVE_SPACE(4); 1605e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1606fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1607fc931582SAndy Adamson clp->cl_ipaddr); 1608fc931582SAndy Adamson RESERVE_SPACE(16 + len); 1609e75bc1c8SBenny Halevy *p++ = cpu_to_be32(len); 161093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, machine_name, len); 1611e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1612e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 1613e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* No more gids */ 1614fc931582SAndy Adamson hdr->nops++; 1615fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1616fc931582SAndy Adamson } 16170f3e66c6SAndy Adamson 16180f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16190f3e66c6SAndy Adamson struct nfs4_session *session, 16200f3e66c6SAndy Adamson struct compound_hdr *hdr) 16210f3e66c6SAndy Adamson { 16220f3e66c6SAndy Adamson __be32 *p; 16230f3e66c6SAndy Adamson RESERVE_SPACE(4 + NFS4_MAX_SESSIONID_LEN); 1624e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 162593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 16260f3e66c6SAndy Adamson hdr->nops++; 16270f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 16280f3e66c6SAndy Adamson } 162999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 163099fe60d0SBenny Halevy 16319b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 16329b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 16339b7b9fccSAndy Adamson struct compound_hdr *hdr) 16349b7b9fccSAndy Adamson { 16359b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 16369b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1637fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1638fc01cea9SAndy Adamson struct nfs4_slot *slot; 1639fc01cea9SAndy Adamson __be32 *p; 16409b7b9fccSAndy Adamson 16419b7b9fccSAndy Adamson if (!session) 16429b7b9fccSAndy Adamson return; 16439b7b9fccSAndy Adamson 1644fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1645fc01cea9SAndy Adamson 1646fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1647fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1648fc01cea9SAndy Adamson 1649fc01cea9SAndy Adamson RESERVE_SPACE(4); 1650e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1651fc01cea9SAndy Adamson 1652fc01cea9SAndy Adamson /* 1653fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1654fc01cea9SAndy Adamson */ 1655fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1656fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1657fc01cea9SAndy Adamson __func__, 1658fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1659fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1660fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1661fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1662fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1663fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1664fc01cea9SAndy Adamson RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 16); 166593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1666e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1667e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1668e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 1669e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_cache_this); 16709b7b9fccSAndy Adamson hdr->nops++; 16719b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 16729b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 16739b7b9fccSAndy Adamson } 16749b7b9fccSAndy Adamson 16751da177e4SLinus Torvalds /* 16761da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 16771da177e4SLinus Torvalds */ 16781da177e4SLinus Torvalds 167966cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 168066cc0429SBenny Halevy { 168166cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 168266cc0429SBenny Halevy if (args->sa_session) 168366cc0429SBenny Halevy return args->sa_session->clp->cl_minorversion; 168466cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 168566cc0429SBenny Halevy return 0; 168666cc0429SBenny Halevy } 168766cc0429SBenny Halevy 16881da177e4SLinus Torvalds /* 16891da177e4SLinus Torvalds * Encode an ACCESS request 16901da177e4SLinus Torvalds */ 16918687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 16921da177e4SLinus Torvalds { 16931da177e4SLinus Torvalds struct xdr_stream xdr; 16941da177e4SLinus Torvalds struct compound_hdr hdr = { 169566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 16961da177e4SLinus Torvalds }; 16971da177e4SLinus Torvalds 16981da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16990c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17009b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1701cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1702cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1703cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1704d017931cSAndy Adamson encode_nops(&hdr); 1705cf8cdbe5SAndy Adamson return 0; 17061da177e4SLinus Torvalds } 17071da177e4SLinus Torvalds 17081da177e4SLinus Torvalds /* 17091da177e4SLinus Torvalds * Encode LOOKUP request 17101da177e4SLinus Torvalds */ 17118687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 17121da177e4SLinus Torvalds { 17131da177e4SLinus Torvalds struct xdr_stream xdr; 17141da177e4SLinus Torvalds struct compound_hdr hdr = { 171566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17161da177e4SLinus Torvalds }; 17171da177e4SLinus Torvalds 17181da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17190c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17209b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1721cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1722cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1723cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1724cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1725d017931cSAndy Adamson encode_nops(&hdr); 1726cf8cdbe5SAndy Adamson return 0; 17271da177e4SLinus Torvalds } 17281da177e4SLinus Torvalds 17291da177e4SLinus Torvalds /* 17301da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 17311da177e4SLinus Torvalds */ 17328687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 17331da177e4SLinus Torvalds { 17341da177e4SLinus Torvalds struct xdr_stream xdr; 17351da177e4SLinus Torvalds struct compound_hdr hdr = { 173666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17371da177e4SLinus Torvalds }; 17381da177e4SLinus Torvalds 17391da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17400c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17419b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1742cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1743cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1744cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1745d017931cSAndy Adamson encode_nops(&hdr); 1746cf8cdbe5SAndy Adamson return 0; 17471da177e4SLinus Torvalds } 17481da177e4SLinus Torvalds 17491da177e4SLinus Torvalds /* 17501da177e4SLinus Torvalds * Encode REMOVE request 17511da177e4SLinus Torvalds */ 17524fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 17531da177e4SLinus Torvalds { 17541da177e4SLinus Torvalds struct xdr_stream xdr; 17551da177e4SLinus Torvalds struct compound_hdr hdr = { 175666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17571da177e4SLinus Torvalds }; 17581da177e4SLinus Torvalds 17591da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17600c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17619b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1762cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1763cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1764cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1765d017931cSAndy Adamson encode_nops(&hdr); 1766cf8cdbe5SAndy Adamson return 0; 17671da177e4SLinus Torvalds } 17681da177e4SLinus Torvalds 17691da177e4SLinus Torvalds /* 17701da177e4SLinus Torvalds * Encode RENAME request 17711da177e4SLinus Torvalds */ 17728687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 17731da177e4SLinus Torvalds { 17741da177e4SLinus Torvalds struct xdr_stream xdr; 17751da177e4SLinus Torvalds struct compound_hdr hdr = { 177666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17771da177e4SLinus Torvalds }; 17781da177e4SLinus Torvalds 17791da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17800c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17819b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1782cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1783cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1784cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1785cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1786cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1787cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1788cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1789d017931cSAndy Adamson encode_nops(&hdr); 1790cf8cdbe5SAndy Adamson return 0; 17911da177e4SLinus Torvalds } 17921da177e4SLinus Torvalds 17931da177e4SLinus Torvalds /* 17941da177e4SLinus Torvalds * Encode LINK request 17951da177e4SLinus Torvalds */ 17968687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 17971da177e4SLinus Torvalds { 17981da177e4SLinus Torvalds struct xdr_stream xdr; 17991da177e4SLinus Torvalds struct compound_hdr hdr = { 180066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18011da177e4SLinus Torvalds }; 18021da177e4SLinus Torvalds 18031da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18040c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18059b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1806cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1807cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1808cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1809cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1810cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1811cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1812cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1813d017931cSAndy Adamson encode_nops(&hdr); 1814cf8cdbe5SAndy Adamson return 0; 18151da177e4SLinus Torvalds } 18161da177e4SLinus Torvalds 18171da177e4SLinus Torvalds /* 18181da177e4SLinus Torvalds * Encode CREATE request 18191da177e4SLinus Torvalds */ 18208687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18211da177e4SLinus Torvalds { 18221da177e4SLinus Torvalds struct xdr_stream xdr; 18231da177e4SLinus Torvalds struct compound_hdr hdr = { 182466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18251da177e4SLinus Torvalds }; 18261da177e4SLinus Torvalds 18271da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18280c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18299b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1830cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1831cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1832cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1833cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1834cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1835cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1836cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1837d017931cSAndy Adamson encode_nops(&hdr); 1838cf8cdbe5SAndy Adamson return 0; 18391da177e4SLinus Torvalds } 18401da177e4SLinus Torvalds 18411da177e4SLinus Torvalds /* 18421da177e4SLinus Torvalds * Encode SYMLINK request 18431da177e4SLinus Torvalds */ 18448687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18451da177e4SLinus Torvalds { 18461da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 18471da177e4SLinus Torvalds } 18481da177e4SLinus Torvalds 18491da177e4SLinus Torvalds /* 18501da177e4SLinus Torvalds * Encode GETATTR request 18511da177e4SLinus Torvalds */ 18528687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 18531da177e4SLinus Torvalds { 18541da177e4SLinus Torvalds struct xdr_stream xdr; 18551da177e4SLinus Torvalds struct compound_hdr hdr = { 185666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18571da177e4SLinus Torvalds }; 18581da177e4SLinus Torvalds 18591da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18600c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18619b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1862cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1863cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1864d017931cSAndy Adamson encode_nops(&hdr); 1865cf8cdbe5SAndy Adamson return 0; 18661da177e4SLinus Torvalds } 18671da177e4SLinus Torvalds 18681da177e4SLinus Torvalds /* 18691da177e4SLinus Torvalds * Encode a CLOSE request 18701da177e4SLinus Torvalds */ 18718687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 18721da177e4SLinus Torvalds { 18731da177e4SLinus Torvalds struct xdr_stream xdr; 18741da177e4SLinus Torvalds struct compound_hdr hdr = { 187566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18761da177e4SLinus Torvalds }; 18771da177e4SLinus Torvalds 18781da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18790c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18809b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1881cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1882cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1883cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1884d017931cSAndy Adamson encode_nops(&hdr); 1885cf8cdbe5SAndy Adamson return 0; 18861da177e4SLinus Torvalds } 18871da177e4SLinus Torvalds 18881da177e4SLinus Torvalds /* 18891da177e4SLinus Torvalds * Encode an OPEN request 18901da177e4SLinus Torvalds */ 18918687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 18921da177e4SLinus Torvalds { 18931da177e4SLinus Torvalds struct xdr_stream xdr; 18941da177e4SLinus Torvalds struct compound_hdr hdr = { 189566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18961da177e4SLinus Torvalds }; 18971da177e4SLinus Torvalds 18981da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18990c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19009b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1901cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1902cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1903cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1904cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1905cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1906cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1907cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1908d017931cSAndy Adamson encode_nops(&hdr); 1909cf8cdbe5SAndy Adamson return 0; 19101da177e4SLinus Torvalds } 19111da177e4SLinus Torvalds 19121da177e4SLinus Torvalds /* 19131da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 19141da177e4SLinus Torvalds */ 19158687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 19161da177e4SLinus Torvalds { 19171da177e4SLinus Torvalds struct xdr_stream xdr; 19181da177e4SLinus Torvalds struct compound_hdr hdr = { 1919d017931cSAndy Adamson .nops = 0, 19201da177e4SLinus Torvalds }; 19211da177e4SLinus Torvalds 19221da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19230c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1924cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1925cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1926d017931cSAndy Adamson encode_nops(&hdr); 1927cf8cdbe5SAndy Adamson return 0; 19281da177e4SLinus Torvalds } 19291da177e4SLinus Torvalds 19301da177e4SLinus Torvalds /* 19311da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 19321da177e4SLinus Torvalds */ 19338687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19341da177e4SLinus Torvalds { 19351da177e4SLinus Torvalds struct xdr_stream xdr; 19361da177e4SLinus Torvalds struct compound_hdr hdr = { 193766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19381da177e4SLinus Torvalds }; 19391da177e4SLinus Torvalds 19401da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19410c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19429b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1943cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1944cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1945cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1946d017931cSAndy Adamson encode_nops(&hdr); 1947cf8cdbe5SAndy Adamson return 0; 19481da177e4SLinus Torvalds } 19491da177e4SLinus Torvalds 19501da177e4SLinus Torvalds /* 19511da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 19521da177e4SLinus Torvalds */ 19538687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19541da177e4SLinus Torvalds { 19551da177e4SLinus Torvalds struct xdr_stream xdr; 19561da177e4SLinus Torvalds struct compound_hdr hdr = { 195766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19581da177e4SLinus Torvalds }; 19591da177e4SLinus Torvalds 19601da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19610c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19629b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1963cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1964cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1965cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1966d017931cSAndy Adamson encode_nops(&hdr); 1967cf8cdbe5SAndy Adamson return 0; 19681da177e4SLinus Torvalds } 19691da177e4SLinus Torvalds 19701da177e4SLinus Torvalds /* 19711da177e4SLinus Torvalds * Encode a LOCK request 19721da177e4SLinus Torvalds */ 19738687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 19741da177e4SLinus Torvalds { 19751da177e4SLinus Torvalds struct xdr_stream xdr; 19761da177e4SLinus Torvalds struct compound_hdr hdr = { 197766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19781da177e4SLinus Torvalds }; 19791da177e4SLinus Torvalds 19801da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19810c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19829b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1983cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1984cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 1985d017931cSAndy Adamson encode_nops(&hdr); 1986cf8cdbe5SAndy Adamson return 0; 19871da177e4SLinus Torvalds } 19881da177e4SLinus Torvalds 19891da177e4SLinus Torvalds /* 19901da177e4SLinus Torvalds * Encode a LOCKT request 19911da177e4SLinus Torvalds */ 19928687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 19931da177e4SLinus Torvalds { 19941da177e4SLinus Torvalds struct xdr_stream xdr; 19951da177e4SLinus Torvalds struct compound_hdr hdr = { 199666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19971da177e4SLinus Torvalds }; 19981da177e4SLinus Torvalds 19991da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20000c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20019b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2002cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2003cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 2004d017931cSAndy Adamson encode_nops(&hdr); 2005cf8cdbe5SAndy Adamson return 0; 20061da177e4SLinus Torvalds } 20071da177e4SLinus Torvalds 20081da177e4SLinus Torvalds /* 20091da177e4SLinus Torvalds * Encode a LOCKU request 20101da177e4SLinus Torvalds */ 20118687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 20121da177e4SLinus Torvalds { 20131da177e4SLinus Torvalds struct xdr_stream xdr; 20141da177e4SLinus Torvalds struct compound_hdr hdr = { 201566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20161da177e4SLinus Torvalds }; 20171da177e4SLinus Torvalds 20181da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20190c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20209b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2021cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2022cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 2023d017931cSAndy Adamson encode_nops(&hdr); 2024cf8cdbe5SAndy Adamson return 0; 20251da177e4SLinus Torvalds } 20261da177e4SLinus Torvalds 20271da177e4SLinus Torvalds /* 20281da177e4SLinus Torvalds * Encode a READLINK request 20291da177e4SLinus Torvalds */ 20308687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 20311da177e4SLinus Torvalds { 20321da177e4SLinus Torvalds struct xdr_stream xdr; 20331da177e4SLinus Torvalds struct compound_hdr hdr = { 203466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20351da177e4SLinus Torvalds }; 20361da177e4SLinus Torvalds 20371da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20380c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20399b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2040cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2041cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2042e3a535e1STrond Myklebust 204328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2044e3a535e1STrond Myklebust args->pgbase, args->pglen); 2045d017931cSAndy Adamson encode_nops(&hdr); 2046cf8cdbe5SAndy Adamson return 0; 20471da177e4SLinus Torvalds } 20481da177e4SLinus Torvalds 20491da177e4SLinus Torvalds /* 20501da177e4SLinus Torvalds * Encode a READDIR request 20511da177e4SLinus Torvalds */ 20528687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 20531da177e4SLinus Torvalds { 20541da177e4SLinus Torvalds struct xdr_stream xdr; 20551da177e4SLinus Torvalds struct compound_hdr hdr = { 205666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20571da177e4SLinus Torvalds }; 20581da177e4SLinus Torvalds 20591da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20600c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20619b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2062cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2063cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2064d6ac02dfSTrond Myklebust 206528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2066d6ac02dfSTrond Myklebust args->pgbase, args->count); 2067d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 206828f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2069d6ac02dfSTrond Myklebust args->pgbase, args->count); 2070d017931cSAndy Adamson encode_nops(&hdr); 2071cf8cdbe5SAndy Adamson return 0; 20721da177e4SLinus Torvalds } 20731da177e4SLinus Torvalds 20741da177e4SLinus Torvalds /* 20751da177e4SLinus Torvalds * Encode a READ request 20761da177e4SLinus Torvalds */ 20778687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 20781da177e4SLinus Torvalds { 20791da177e4SLinus Torvalds struct xdr_stream xdr; 20801da177e4SLinus Torvalds struct compound_hdr hdr = { 208166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20821da177e4SLinus Torvalds }; 20831da177e4SLinus Torvalds 20841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2087cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2088cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 20891da177e4SLinus Torvalds 209028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 20911da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 20924f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2093d017931cSAndy Adamson encode_nops(&hdr); 2094cf8cdbe5SAndy Adamson return 0; 20951da177e4SLinus Torvalds } 20961da177e4SLinus Torvalds 20971da177e4SLinus Torvalds /* 20981da177e4SLinus Torvalds * Encode an SETATTR request 20991da177e4SLinus Torvalds */ 21008687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 21011da177e4SLinus Torvalds { 21021da177e4SLinus Torvalds struct xdr_stream xdr; 21031da177e4SLinus Torvalds struct compound_hdr hdr = { 210466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21051da177e4SLinus Torvalds }; 21061da177e4SLinus Torvalds 21071da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21080c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21099b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2110cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2111cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2112cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2113d017931cSAndy Adamson encode_nops(&hdr); 2114cf8cdbe5SAndy Adamson return 0; 21151da177e4SLinus Torvalds } 21161da177e4SLinus Torvalds 21171da177e4SLinus Torvalds /* 2118029d105eSJ. Bruce Fields * Encode a GETACL request 2119029d105eSJ. Bruce Fields */ 2120029d105eSJ. Bruce Fields static int 21218687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2122029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2123029d105eSJ. Bruce Fields { 2124029d105eSJ. Bruce Fields struct xdr_stream xdr; 2125029d105eSJ. Bruce Fields struct compound_hdr hdr = { 212666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2127029d105eSJ. Bruce Fields }; 212828f56694SBenny Halevy uint32_t replen; 2129029d105eSJ. Bruce Fields 2130029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21310c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21329b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2133cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 213428f56694SBenny Halevy replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; 2135cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2136cf8cdbe5SAndy Adamson 213728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2138029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2139d017931cSAndy Adamson encode_nops(&hdr); 2140cf8cdbe5SAndy Adamson return 0; 2141029d105eSJ. Bruce Fields } 2142029d105eSJ. Bruce Fields 2143029d105eSJ. Bruce Fields /* 21441da177e4SLinus Torvalds * Encode a WRITE request 21451da177e4SLinus Torvalds */ 21468687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21471da177e4SLinus Torvalds { 21481da177e4SLinus Torvalds struct xdr_stream xdr; 21491da177e4SLinus Torvalds struct compound_hdr hdr = { 215066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21511da177e4SLinus Torvalds }; 21521da177e4SLinus Torvalds 21531da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21540c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21559b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2156cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2157cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 21584f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2159cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2160d017931cSAndy Adamson encode_nops(&hdr); 2161cf8cdbe5SAndy Adamson return 0; 21621da177e4SLinus Torvalds } 21631da177e4SLinus Torvalds 21641da177e4SLinus Torvalds /* 21651da177e4SLinus Torvalds * a COMMIT request 21661da177e4SLinus Torvalds */ 21678687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21681da177e4SLinus Torvalds { 21691da177e4SLinus Torvalds struct xdr_stream xdr; 21701da177e4SLinus Torvalds struct compound_hdr hdr = { 217166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21721da177e4SLinus Torvalds }; 21731da177e4SLinus Torvalds 21741da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21750c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21769b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2177cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2178cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2179cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2180d017931cSAndy Adamson encode_nops(&hdr); 2181cf8cdbe5SAndy Adamson return 0; 21821da177e4SLinus Torvalds } 21831da177e4SLinus Torvalds 21841da177e4SLinus Torvalds /* 21851da177e4SLinus Torvalds * FSINFO request 21861da177e4SLinus Torvalds */ 21878687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 21881da177e4SLinus Torvalds { 21891da177e4SLinus Torvalds struct xdr_stream xdr; 21901da177e4SLinus Torvalds struct compound_hdr hdr = { 219166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21921da177e4SLinus Torvalds }; 21931da177e4SLinus Torvalds 21941da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21950c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21969b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2197cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2198cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2199d017931cSAndy Adamson encode_nops(&hdr); 2200cf8cdbe5SAndy Adamson return 0; 22011da177e4SLinus Torvalds } 22021da177e4SLinus Torvalds 22031da177e4SLinus Torvalds /* 22041da177e4SLinus Torvalds * a PATHCONF request 22051da177e4SLinus Torvalds */ 22068687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 22071da177e4SLinus Torvalds { 22081da177e4SLinus Torvalds struct xdr_stream xdr; 22091da177e4SLinus Torvalds struct compound_hdr hdr = { 221066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22111da177e4SLinus Torvalds }; 22121da177e4SLinus Torvalds 22131da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22140c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22159b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2216cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2217cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2218d017931cSAndy Adamson &hdr); 2219d017931cSAndy Adamson encode_nops(&hdr); 2220cf8cdbe5SAndy Adamson return 0; 22211da177e4SLinus Torvalds } 22221da177e4SLinus Torvalds 22231da177e4SLinus Torvalds /* 22241da177e4SLinus Torvalds * a STATFS request 22251da177e4SLinus Torvalds */ 22268687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 22271da177e4SLinus Torvalds { 22281da177e4SLinus Torvalds struct xdr_stream xdr; 22291da177e4SLinus Torvalds struct compound_hdr hdr = { 223066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22311da177e4SLinus Torvalds }; 22321da177e4SLinus Torvalds 22331da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22340c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22359b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2236cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2237cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2238d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2239d017931cSAndy Adamson encode_nops(&hdr); 2240cf8cdbe5SAndy Adamson return 0; 22411da177e4SLinus Torvalds } 22421da177e4SLinus Torvalds 22431da177e4SLinus Torvalds /* 22441da177e4SLinus Torvalds * GETATTR_BITMAP request 22451da177e4SLinus Torvalds */ 224643652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 224743652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 22481da177e4SLinus Torvalds { 22491da177e4SLinus Torvalds struct xdr_stream xdr; 22501da177e4SLinus Torvalds struct compound_hdr hdr = { 225166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22521da177e4SLinus Torvalds }; 22531da177e4SLinus Torvalds 22541da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22550c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22569b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 225743652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2258cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 22591da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 22601da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2261d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2262d017931cSAndy Adamson encode_nops(&hdr); 2263cf8cdbe5SAndy Adamson return 0; 22641da177e4SLinus Torvalds } 22651da177e4SLinus Torvalds 22661da177e4SLinus Torvalds /* 22671da177e4SLinus Torvalds * a RENEW request 22681da177e4SLinus Torvalds */ 22698687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22701da177e4SLinus Torvalds { 22711da177e4SLinus Torvalds struct xdr_stream xdr; 22721da177e4SLinus Torvalds struct compound_hdr hdr = { 2273d017931cSAndy Adamson .nops = 0, 22741da177e4SLinus Torvalds }; 22751da177e4SLinus Torvalds 22761da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22770c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2278cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2279d017931cSAndy Adamson encode_nops(&hdr); 2280cf8cdbe5SAndy Adamson return 0; 22811da177e4SLinus Torvalds } 22821da177e4SLinus Torvalds 22831da177e4SLinus Torvalds /* 22841da177e4SLinus Torvalds * a SETCLIENTID request 22851da177e4SLinus Torvalds */ 22868687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 22871da177e4SLinus Torvalds { 22881da177e4SLinus Torvalds struct xdr_stream xdr; 22891da177e4SLinus Torvalds struct compound_hdr hdr = { 2290d017931cSAndy Adamson .nops = 0, 22911da177e4SLinus Torvalds }; 22921da177e4SLinus Torvalds 22931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22940c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2295cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2296d017931cSAndy Adamson encode_nops(&hdr); 2297cf8cdbe5SAndy Adamson return 0; 22981da177e4SLinus Torvalds } 22991da177e4SLinus Torvalds 23001da177e4SLinus Torvalds /* 23011da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 23021da177e4SLinus Torvalds */ 23038687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 23041da177e4SLinus Torvalds { 23051da177e4SLinus Torvalds struct xdr_stream xdr; 23061da177e4SLinus Torvalds struct compound_hdr hdr = { 2307d017931cSAndy Adamson .nops = 0, 23081da177e4SLinus Torvalds }; 23091da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 23101da177e4SLinus Torvalds 23111da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23120c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2313cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 2314cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2315cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2316d017931cSAndy Adamson encode_nops(&hdr); 2317cf8cdbe5SAndy Adamson return 0; 23181da177e4SLinus Torvalds } 23191da177e4SLinus Torvalds 23201da177e4SLinus Torvalds /* 23211da177e4SLinus Torvalds * DELEGRETURN request 23221da177e4SLinus Torvalds */ 23238687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 23241da177e4SLinus Torvalds { 23251da177e4SLinus Torvalds struct xdr_stream xdr; 23261da177e4SLinus Torvalds struct compound_hdr hdr = { 232766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23281da177e4SLinus Torvalds }; 23291da177e4SLinus Torvalds 23301da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23310c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23329b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2333cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2334cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2335cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2336d017931cSAndy Adamson encode_nops(&hdr); 2337cf8cdbe5SAndy Adamson return 0; 23381da177e4SLinus Torvalds } 23391da177e4SLinus Torvalds 23401da177e4SLinus Torvalds /* 2341683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2342683b57b4STrond Myklebust */ 23438687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2344683b57b4STrond Myklebust { 2345683b57b4STrond Myklebust struct xdr_stream xdr; 2346683b57b4STrond Myklebust struct compound_hdr hdr = { 234766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2348683b57b4STrond Myklebust }; 234928f56694SBenny Halevy uint32_t replen; 2350683b57b4STrond Myklebust 2351683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23520c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23539b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2354cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2355cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 235628f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2357cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2358cf8cdbe5SAndy Adamson 235928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2360683b57b4STrond Myklebust 0, PAGE_SIZE); 2361d017931cSAndy Adamson encode_nops(&hdr); 2362cf8cdbe5SAndy Adamson return 0; 2363683b57b4STrond Myklebust } 2364683b57b4STrond Myklebust 236599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 236699fe60d0SBenny Halevy /* 236799fe60d0SBenny Halevy * EXCHANGE_ID request 236899fe60d0SBenny Halevy */ 236999fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 237099fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 237199fe60d0SBenny Halevy { 237299fe60d0SBenny Halevy struct xdr_stream xdr; 237399fe60d0SBenny Halevy struct compound_hdr hdr = { 237499fe60d0SBenny Halevy .minorversion = args->client->cl_minorversion, 237599fe60d0SBenny Halevy }; 237699fe60d0SBenny Halevy 237799fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 237899fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 237999fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 238099fe60d0SBenny Halevy encode_nops(&hdr); 238199fe60d0SBenny Halevy return 0; 238299fe60d0SBenny Halevy } 23832050f0ccSAndy Adamson 23842050f0ccSAndy Adamson /* 2385fc931582SAndy Adamson * a CREATE_SESSION request 2386fc931582SAndy Adamson */ 2387fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2388fc931582SAndy Adamson struct nfs41_create_session_args *args) 2389fc931582SAndy Adamson { 2390fc931582SAndy Adamson struct xdr_stream xdr; 2391fc931582SAndy Adamson struct compound_hdr hdr = { 2392fc931582SAndy Adamson .minorversion = args->client->cl_minorversion, 2393fc931582SAndy Adamson }; 2394fc931582SAndy Adamson 2395fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2396fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2397fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2398fc931582SAndy Adamson encode_nops(&hdr); 2399fc931582SAndy Adamson return 0; 2400fc931582SAndy Adamson } 2401fc931582SAndy Adamson 2402fc931582SAndy Adamson /* 24030f3e66c6SAndy Adamson * a DESTROY_SESSION request 24040f3e66c6SAndy Adamson */ 24050f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 24060f3e66c6SAndy Adamson struct nfs4_session *session) 24070f3e66c6SAndy Adamson { 24080f3e66c6SAndy Adamson struct xdr_stream xdr; 24090f3e66c6SAndy Adamson struct compound_hdr hdr = { 24100f3e66c6SAndy Adamson .minorversion = session->clp->cl_minorversion, 24110f3e66c6SAndy Adamson }; 24120f3e66c6SAndy Adamson 24130f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24140f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24150f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 24160f3e66c6SAndy Adamson encode_nops(&hdr); 24170f3e66c6SAndy Adamson return 0; 24180f3e66c6SAndy Adamson } 24190f3e66c6SAndy Adamson 24200f3e66c6SAndy Adamson /* 2421fc01cea9SAndy Adamson * a SEQUENCE request 2422fc01cea9SAndy Adamson */ 2423fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2424fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2425fc01cea9SAndy Adamson { 2426fc01cea9SAndy Adamson struct xdr_stream xdr; 2427fc01cea9SAndy Adamson struct compound_hdr hdr = { 2428fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2429fc01cea9SAndy Adamson }; 2430fc01cea9SAndy Adamson 2431fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2432fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2433fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2434fc01cea9SAndy Adamson encode_nops(&hdr); 2435fc01cea9SAndy Adamson return 0; 2436fc01cea9SAndy Adamson } 2437fc01cea9SAndy Adamson 2438fc01cea9SAndy Adamson /* 24392050f0ccSAndy Adamson * a GET_LEASE_TIME request 24402050f0ccSAndy Adamson */ 24412050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 24422050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 24432050f0ccSAndy Adamson { 24442050f0ccSAndy Adamson struct xdr_stream xdr; 24452050f0ccSAndy Adamson struct compound_hdr hdr = { 24462050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 24472050f0ccSAndy Adamson }; 24482050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24492050f0ccSAndy Adamson 24502050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24512050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24522050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 24532050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 24542050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 24552050f0ccSAndy Adamson encode_nops(&hdr); 24562050f0ccSAndy Adamson return 0; 24572050f0ccSAndy Adamson } 245899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 245999fe60d0SBenny Halevy 2460683b57b4STrond Myklebust /* 24611da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 24621da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 24631da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 24641da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 24651da177e4SLinus Torvalds * 24661da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 24671da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 24681da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 24691da177e4SLinus Torvalds */ 24701da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 24711da177e4SLinus Torvalds #define READ64(x) do { \ 24721da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 24731da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 24741da177e4SLinus Torvalds } while (0) 24751da177e4SLinus Torvalds #define READTIME(x) do { \ 24761da177e4SLinus Torvalds p++; \ 24771da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 24781da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 24791da177e4SLinus Torvalds } while (0) 24801da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 24811da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 24821da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 24831da177e4SLinus Torvalds } while (0) 24841da177e4SLinus Torvalds 24851da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 24861da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2487e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2488fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 24893110ff80SHarvey Harrison " buffer\n", __func__); \ 2490fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 24913110ff80SHarvey Harrison __func__, xdr->p, nbytes, xdr->end); \ 24921da177e4SLinus Torvalds return -EIO; \ 24931da177e4SLinus Torvalds } \ 24941da177e4SLinus Torvalds } while (0) 24951da177e4SLinus Torvalds 2496683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 24971da177e4SLinus Torvalds { 24988687b63aSAl Viro __be32 *p; 24991da177e4SLinus Torvalds 25001da177e4SLinus Torvalds READ_BUF(4); 25011da177e4SLinus Torvalds READ32(*len); 25021da177e4SLinus Torvalds READ_BUF(*len); 25031da177e4SLinus Torvalds *string = (char *)p; 25041da177e4SLinus Torvalds return 0; 25051da177e4SLinus Torvalds } 25061da177e4SLinus Torvalds 25071da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 25081da177e4SLinus Torvalds { 25098687b63aSAl Viro __be32 *p; 25101da177e4SLinus Torvalds 25111da177e4SLinus Torvalds READ_BUF(8); 25121da177e4SLinus Torvalds READ32(hdr->status); 25131da177e4SLinus Torvalds READ32(hdr->taglen); 25141da177e4SLinus Torvalds 25151da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 25161da177e4SLinus Torvalds hdr->tag = (char *)p; 25171da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 25181da177e4SLinus Torvalds READ32(hdr->nops); 2519aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2520aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 25211da177e4SLinus Torvalds return 0; 25221da177e4SLinus Torvalds } 25231da177e4SLinus Torvalds 25241da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 25251da177e4SLinus Torvalds { 25268687b63aSAl Viro __be32 *p; 25271da177e4SLinus Torvalds uint32_t opnum; 25281da177e4SLinus Torvalds int32_t nfserr; 25291da177e4SLinus Torvalds 25301da177e4SLinus Torvalds READ_BUF(8); 25311da177e4SLinus Torvalds READ32(opnum); 25321da177e4SLinus Torvalds if (opnum != expected) { 2533fe82a183SChuck Lever dprintk("nfs: Server returned operation" 25341da177e4SLinus Torvalds " %d but we issued a request for %d\n", 25351da177e4SLinus Torvalds opnum, expected); 25361da177e4SLinus Torvalds return -EIO; 25371da177e4SLinus Torvalds } 25381da177e4SLinus Torvalds READ32(nfserr); 25391da177e4SLinus Torvalds if (nfserr != NFS_OK) 2540856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 25411da177e4SLinus Torvalds return 0; 25421da177e4SLinus Torvalds } 25431da177e4SLinus Torvalds 25441da177e4SLinus Torvalds /* Dummy routine */ 2545adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 25461da177e4SLinus Torvalds { 25478687b63aSAl Viro __be32 *p; 2548683b57b4STrond Myklebust unsigned int strlen; 25491da177e4SLinus Torvalds char *str; 25501da177e4SLinus Torvalds 25511da177e4SLinus Torvalds READ_BUF(12); 25521da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 25531da177e4SLinus Torvalds } 25541da177e4SLinus Torvalds 25551da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 25561da177e4SLinus Torvalds { 25578687b63aSAl Viro uint32_t bmlen; 25588687b63aSAl Viro __be32 *p; 25591da177e4SLinus Torvalds 25601da177e4SLinus Torvalds READ_BUF(4); 25611da177e4SLinus Torvalds READ32(bmlen); 25621da177e4SLinus Torvalds 25631da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 25641da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 25651da177e4SLinus Torvalds if (bmlen > 0) { 25661da177e4SLinus Torvalds READ32(bitmap[0]); 25671da177e4SLinus Torvalds if (bmlen > 1) 25681da177e4SLinus Torvalds READ32(bitmap[1]); 25691da177e4SLinus Torvalds } 25701da177e4SLinus Torvalds return 0; 25711da177e4SLinus Torvalds } 25721da177e4SLinus Torvalds 25738687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 25741da177e4SLinus Torvalds { 25758687b63aSAl Viro __be32 *p; 25761da177e4SLinus Torvalds 25771da177e4SLinus Torvalds READ_BUF(4); 25781da177e4SLinus Torvalds READ32(*attrlen); 25791da177e4SLinus Torvalds *savep = xdr->p; 25801da177e4SLinus Torvalds return 0; 25811da177e4SLinus Torvalds } 25821da177e4SLinus Torvalds 25831da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 25841da177e4SLinus Torvalds { 25851da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 25861da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 25871da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 25881da177e4SLinus Torvalds } else 25891da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 259044109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 25911da177e4SLinus Torvalds return 0; 25921da177e4SLinus Torvalds } 25931da177e4SLinus Torvalds 25941da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 25951da177e4SLinus Torvalds { 25968687b63aSAl Viro __be32 *p; 2597409924e4STrond Myklebust int ret = 0; 25981da177e4SLinus Torvalds 25991da177e4SLinus Torvalds *type = 0; 26001da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 26011da177e4SLinus Torvalds return -EIO; 26021da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 26031da177e4SLinus Torvalds READ_BUF(4); 26041da177e4SLinus Torvalds READ32(*type); 26051da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 26063110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 26071da177e4SLinus Torvalds return -EIO; 26081da177e4SLinus Torvalds } 26091da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2610409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 26111da177e4SLinus Torvalds } 2612bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2613409924e4STrond Myklebust return ret; 26141da177e4SLinus Torvalds } 26151da177e4SLinus Torvalds 26161da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 26171da177e4SLinus Torvalds { 26188687b63aSAl Viro __be32 *p; 2619409924e4STrond Myklebust int ret = 0; 26201da177e4SLinus Torvalds 26211da177e4SLinus Torvalds *change = 0; 26221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 26231da177e4SLinus Torvalds return -EIO; 26241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 26251da177e4SLinus Torvalds READ_BUF(8); 26261da177e4SLinus Torvalds READ64(*change); 26271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2628409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 26291da177e4SLinus Torvalds } 26303110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 26311da177e4SLinus Torvalds (unsigned long long)*change); 2632409924e4STrond Myklebust return ret; 26331da177e4SLinus Torvalds } 26341da177e4SLinus Torvalds 26351da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 26361da177e4SLinus Torvalds { 26378687b63aSAl Viro __be32 *p; 2638409924e4STrond Myklebust int ret = 0; 26391da177e4SLinus Torvalds 26401da177e4SLinus Torvalds *size = 0; 26411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 26421da177e4SLinus Torvalds return -EIO; 26431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 26441da177e4SLinus Torvalds READ_BUF(8); 26451da177e4SLinus Torvalds READ64(*size); 26461da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2647409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 26481da177e4SLinus Torvalds } 26493110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2650409924e4STrond Myklebust return ret; 26511da177e4SLinus Torvalds } 26521da177e4SLinus Torvalds 26531da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26541da177e4SLinus Torvalds { 26558687b63aSAl Viro __be32 *p; 26561da177e4SLinus Torvalds 26571da177e4SLinus Torvalds *res = 0; 26581da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 26591da177e4SLinus Torvalds return -EIO; 26601da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 26611da177e4SLinus Torvalds READ_BUF(4); 26621da177e4SLinus Torvalds READ32(*res); 26631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 26641da177e4SLinus Torvalds } 26653110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 26661da177e4SLinus Torvalds return 0; 26671da177e4SLinus Torvalds } 26681da177e4SLinus Torvalds 26691da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26701da177e4SLinus Torvalds { 26718687b63aSAl Viro __be32 *p; 26721da177e4SLinus Torvalds 26731da177e4SLinus Torvalds *res = 0; 26741da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 26751da177e4SLinus Torvalds return -EIO; 26761da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 26771da177e4SLinus Torvalds READ_BUF(4); 26781da177e4SLinus Torvalds READ32(*res); 26791da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 26801da177e4SLinus Torvalds } 26813110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 26821da177e4SLinus Torvalds return 0; 26831da177e4SLinus Torvalds } 26841da177e4SLinus Torvalds 26858b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 26861da177e4SLinus Torvalds { 26878687b63aSAl Viro __be32 *p; 2688409924e4STrond Myklebust int ret = 0; 26891da177e4SLinus Torvalds 26901da177e4SLinus Torvalds fsid->major = 0; 26911da177e4SLinus Torvalds fsid->minor = 0; 26921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 26931da177e4SLinus Torvalds return -EIO; 26941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 26951da177e4SLinus Torvalds READ_BUF(16); 26961da177e4SLinus Torvalds READ64(fsid->major); 26971da177e4SLinus Torvalds READ64(fsid->minor); 26981da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2699409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 27001da177e4SLinus Torvalds } 27013110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 27021da177e4SLinus Torvalds (unsigned long long)fsid->major, 27031da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2704409924e4STrond Myklebust return ret; 27051da177e4SLinus Torvalds } 27061da177e4SLinus Torvalds 27071da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27081da177e4SLinus Torvalds { 27098687b63aSAl Viro __be32 *p; 27101da177e4SLinus Torvalds 27111da177e4SLinus Torvalds *res = 60; 27121da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 27131da177e4SLinus Torvalds return -EIO; 27141da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 27151da177e4SLinus Torvalds READ_BUF(4); 27161da177e4SLinus Torvalds READ32(*res); 27171da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 27181da177e4SLinus Torvalds } 27193110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 27201da177e4SLinus Torvalds return 0; 27211da177e4SLinus Torvalds } 27221da177e4SLinus Torvalds 27231da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27241da177e4SLinus Torvalds { 27258687b63aSAl Viro __be32 *p; 27261da177e4SLinus Torvalds 27271da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 27281da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 27291da177e4SLinus Torvalds return -EIO; 27301da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 27311da177e4SLinus Torvalds READ_BUF(4); 27321da177e4SLinus Torvalds READ32(*res); 27331da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 27341da177e4SLinus Torvalds } 27353110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 27361da177e4SLinus Torvalds return 0; 27371da177e4SLinus Torvalds } 27381da177e4SLinus Torvalds 27391da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 27401da177e4SLinus Torvalds { 27418687b63aSAl Viro __be32 *p; 2742409924e4STrond Myklebust int ret = 0; 27431da177e4SLinus Torvalds 27441da177e4SLinus Torvalds *fileid = 0; 27451da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 27461da177e4SLinus Torvalds return -EIO; 27471da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 27481da177e4SLinus Torvalds READ_BUF(8); 27491da177e4SLinus Torvalds READ64(*fileid); 27501da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2751409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 27521da177e4SLinus Torvalds } 27533110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2754409924e4STrond Myklebust return ret; 27551da177e4SLinus Torvalds } 27561da177e4SLinus Torvalds 275799baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 275899baf625SManoj Naik { 27598687b63aSAl Viro __be32 *p; 2760409924e4STrond Myklebust int ret = 0; 276199baf625SManoj Naik 276299baf625SManoj Naik *fileid = 0; 276399baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 276499baf625SManoj Naik return -EIO; 276599baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 276699baf625SManoj Naik READ_BUF(8); 276799baf625SManoj Naik READ64(*fileid); 276899baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2769409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 277099baf625SManoj Naik } 27713110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2772409924e4STrond Myklebust return ret; 277399baf625SManoj Naik } 277499baf625SManoj Naik 27751da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27761da177e4SLinus Torvalds { 27778687b63aSAl Viro __be32 *p; 27781da177e4SLinus Torvalds int status = 0; 27791da177e4SLinus Torvalds 27801da177e4SLinus Torvalds *res = 0; 27811da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 27821da177e4SLinus Torvalds return -EIO; 27831da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 27841da177e4SLinus Torvalds READ_BUF(8); 27851da177e4SLinus Torvalds READ64(*res); 27861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 27871da177e4SLinus Torvalds } 27883110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 27891da177e4SLinus Torvalds return status; 27901da177e4SLinus Torvalds } 27911da177e4SLinus Torvalds 27921da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27931da177e4SLinus Torvalds { 27948687b63aSAl Viro __be32 *p; 27951da177e4SLinus Torvalds int status = 0; 27961da177e4SLinus Torvalds 27971da177e4SLinus Torvalds *res = 0; 27981da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 27991da177e4SLinus Torvalds return -EIO; 28001da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 28011da177e4SLinus Torvalds READ_BUF(8); 28021da177e4SLinus Torvalds READ64(*res); 28031da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 28041da177e4SLinus Torvalds } 28053110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 28061da177e4SLinus Torvalds return status; 28071da177e4SLinus Torvalds } 28081da177e4SLinus Torvalds 28091da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28101da177e4SLinus Torvalds { 28118687b63aSAl Viro __be32 *p; 28121da177e4SLinus Torvalds int status = 0; 28131da177e4SLinus Torvalds 28141da177e4SLinus Torvalds *res = 0; 28151da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 28161da177e4SLinus Torvalds return -EIO; 28171da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 28181da177e4SLinus Torvalds READ_BUF(8); 28191da177e4SLinus Torvalds READ64(*res); 28201da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 28211da177e4SLinus Torvalds } 28223110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 28231da177e4SLinus Torvalds return status; 28241da177e4SLinus Torvalds } 28251da177e4SLinus Torvalds 28267aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 28277aaa0b3bSManoj Naik { 2828464ad6b1SChuck Lever u32 n; 28298687b63aSAl Viro __be32 *p; 28307aaa0b3bSManoj Naik int status = 0; 28317aaa0b3bSManoj Naik 28327aaa0b3bSManoj Naik READ_BUF(4); 28337aaa0b3bSManoj Naik READ32(n); 283433a43f28SAndy Adamson if (n == 0) 283533a43f28SAndy Adamson goto root_path; 28367aaa0b3bSManoj Naik dprintk("path "); 28377aaa0b3bSManoj Naik path->ncomponents = 0; 28387aaa0b3bSManoj Naik while (path->ncomponents < n) { 28397aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 28407aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 28417aaa0b3bSManoj Naik if (unlikely(status != 0)) 28427aaa0b3bSManoj Naik goto out_eio; 28437aaa0b3bSManoj Naik if (path->ncomponents != n) 28447aaa0b3bSManoj Naik dprintk("/"); 28457aaa0b3bSManoj Naik dprintk("%s", component->data); 28467aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 28477aaa0b3bSManoj Naik path->ncomponents++; 28487aaa0b3bSManoj Naik else { 28497aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 28507aaa0b3bSManoj Naik goto out_eio; 28517aaa0b3bSManoj Naik } 28527aaa0b3bSManoj Naik } 28537aaa0b3bSManoj Naik out: 28547aaa0b3bSManoj Naik dprintk("\n"); 28557aaa0b3bSManoj Naik return status; 285633a43f28SAndy Adamson root_path: 285733a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 285833a43f28SAndy Adamson path->ncomponents = 1; 285933a43f28SAndy Adamson path->components[0].len=0; 286033a43f28SAndy Adamson path->components[0].data=NULL; 286133a43f28SAndy Adamson dprintk("path /\n"); 286233a43f28SAndy Adamson goto out; 28637aaa0b3bSManoj Naik out_eio: 28647aaa0b3bSManoj Naik dprintk(" status %d", status); 28657aaa0b3bSManoj Naik status = -EIO; 28667aaa0b3bSManoj Naik goto out; 28677aaa0b3bSManoj Naik } 28687aaa0b3bSManoj Naik 28697aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2870683b57b4STrond Myklebust { 2871683b57b4STrond Myklebust int n; 28728687b63aSAl Viro __be32 *p; 2873683b57b4STrond Myklebust int status = -EIO; 2874683b57b4STrond Myklebust 2875683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2876683b57b4STrond Myklebust goto out; 2877683b57b4STrond Myklebust status = 0; 2878683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2879683b57b4STrond Myklebust goto out; 28803110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 28817aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2882683b57b4STrond Myklebust if (unlikely(status != 0)) 2883683b57b4STrond Myklebust goto out; 2884683b57b4STrond Myklebust READ_BUF(4); 2885683b57b4STrond Myklebust READ32(n); 2886683b57b4STrond Myklebust if (n <= 0) 2887683b57b4STrond Myklebust goto out_eio; 2888683b57b4STrond Myklebust res->nlocations = 0; 2889683b57b4STrond Myklebust while (res->nlocations < n) { 2890464ad6b1SChuck Lever u32 m; 28917aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2892683b57b4STrond Myklebust 28937aaa0b3bSManoj Naik READ_BUF(4); 28947aaa0b3bSManoj Naik READ32(m); 28957aaa0b3bSManoj Naik 28967aaa0b3bSManoj Naik loc->nservers = 0; 28973110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 28987aaa0b3bSManoj Naik while (loc->nservers < m) { 28997aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 29007aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2901683b57b4STrond Myklebust if (unlikely(status != 0)) 2902683b57b4STrond Myklebust goto out_eio; 29037aaa0b3bSManoj Naik dprintk("%s ", server->data); 29047aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 29057aaa0b3bSManoj Naik loc->nservers++; 29067aaa0b3bSManoj Naik else { 2907464ad6b1SChuck Lever unsigned int i; 2908464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2909464ad6b1SChuck Lever "returned for location %u\n", 29103110ff80SHarvey Harrison __func__, 2911464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2912464ad6b1SChuck Lever m, res->nlocations); 29137aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 29142e42c3e2STrond Myklebust unsigned int len; 29157aaa0b3bSManoj Naik char *data; 29167aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2917683b57b4STrond Myklebust if (unlikely(status != 0)) 2918683b57b4STrond Myklebust goto out_eio; 29197aaa0b3bSManoj Naik } 29207aaa0b3bSManoj Naik } 29217aaa0b3bSManoj Naik } 29227aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 29237aaa0b3bSManoj Naik if (unlikely(status != 0)) 29247aaa0b3bSManoj Naik goto out_eio; 29257aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2926683b57b4STrond Myklebust res->nlocations++; 2927683b57b4STrond Myklebust } 2928409924e4STrond Myklebust if (res->nlocations != 0) 2929409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 2930683b57b4STrond Myklebust out: 29313110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2932683b57b4STrond Myklebust return status; 2933683b57b4STrond Myklebust out_eio: 2934683b57b4STrond Myklebust status = -EIO; 2935683b57b4STrond Myklebust goto out; 2936683b57b4STrond Myklebust } 2937683b57b4STrond Myklebust 29381da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29391da177e4SLinus Torvalds { 29408687b63aSAl Viro __be32 *p; 29411da177e4SLinus Torvalds int status = 0; 29421da177e4SLinus Torvalds 29431da177e4SLinus Torvalds *res = 0; 29441da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 29451da177e4SLinus Torvalds return -EIO; 29461da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 29471da177e4SLinus Torvalds READ_BUF(8); 29481da177e4SLinus Torvalds READ64(*res); 29491da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 29501da177e4SLinus Torvalds } 29513110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 29521da177e4SLinus Torvalds return status; 29531da177e4SLinus Torvalds } 29541da177e4SLinus Torvalds 29551da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 29561da177e4SLinus Torvalds { 29578687b63aSAl Viro __be32 *p; 29581da177e4SLinus Torvalds int status = 0; 29591da177e4SLinus Torvalds 29601da177e4SLinus Torvalds *maxlink = 1; 29611da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 29621da177e4SLinus Torvalds return -EIO; 29631da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 29641da177e4SLinus Torvalds READ_BUF(4); 29651da177e4SLinus Torvalds READ32(*maxlink); 29661da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 29671da177e4SLinus Torvalds } 29683110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 29691da177e4SLinus Torvalds return status; 29701da177e4SLinus Torvalds } 29711da177e4SLinus Torvalds 29721da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 29731da177e4SLinus Torvalds { 29748687b63aSAl Viro __be32 *p; 29751da177e4SLinus Torvalds int status = 0; 29761da177e4SLinus Torvalds 29771da177e4SLinus Torvalds *maxname = 1024; 29781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 29791da177e4SLinus Torvalds return -EIO; 29801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 29811da177e4SLinus Torvalds READ_BUF(4); 29821da177e4SLinus Torvalds READ32(*maxname); 29831da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 29841da177e4SLinus Torvalds } 29853110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 29861da177e4SLinus Torvalds return status; 29871da177e4SLinus Torvalds } 29881da177e4SLinus Torvalds 29891da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29901da177e4SLinus Torvalds { 29918687b63aSAl Viro __be32 *p; 29921da177e4SLinus Torvalds int status = 0; 29931da177e4SLinus Torvalds 29941da177e4SLinus Torvalds *res = 1024; 29951da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 29961da177e4SLinus Torvalds return -EIO; 29971da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 29981da177e4SLinus Torvalds uint64_t maxread; 29991da177e4SLinus Torvalds READ_BUF(8); 30001da177e4SLinus Torvalds READ64(maxread); 30011da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 30021da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 30031da177e4SLinus Torvalds *res = (uint32_t)maxread; 30041da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 30051da177e4SLinus Torvalds } 30063110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 30071da177e4SLinus Torvalds return status; 30081da177e4SLinus Torvalds } 30091da177e4SLinus Torvalds 30101da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 30111da177e4SLinus Torvalds { 30128687b63aSAl Viro __be32 *p; 30131da177e4SLinus Torvalds int status = 0; 30141da177e4SLinus Torvalds 30151da177e4SLinus Torvalds *res = 1024; 30161da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 30171da177e4SLinus Torvalds return -EIO; 30181da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 30191da177e4SLinus Torvalds uint64_t maxwrite; 30201da177e4SLinus Torvalds READ_BUF(8); 30211da177e4SLinus Torvalds READ64(maxwrite); 30221da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 30231da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 30241da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 30251da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 30261da177e4SLinus Torvalds } 30273110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 30281da177e4SLinus Torvalds return status; 30291da177e4SLinus Torvalds } 30301da177e4SLinus Torvalds 3031bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 30321da177e4SLinus Torvalds { 3033bca79478STrond Myklebust uint32_t tmp; 30348687b63aSAl Viro __be32 *p; 3035409924e4STrond Myklebust int ret = 0; 30361da177e4SLinus Torvalds 30371da177e4SLinus Torvalds *mode = 0; 30381da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 30391da177e4SLinus Torvalds return -EIO; 30401da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 30411da177e4SLinus Torvalds READ_BUF(4); 3042bca79478STrond Myklebust READ32(tmp); 3043bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 30441da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3045409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 30461da177e4SLinus Torvalds } 30473110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3048409924e4STrond Myklebust return ret; 30491da177e4SLinus Torvalds } 30501da177e4SLinus Torvalds 30511da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 30521da177e4SLinus Torvalds { 30538687b63aSAl Viro __be32 *p; 3054409924e4STrond Myklebust int ret = 0; 30551da177e4SLinus Torvalds 30561da177e4SLinus Torvalds *nlink = 1; 30571da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 30581da177e4SLinus Torvalds return -EIO; 30591da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 30601da177e4SLinus Torvalds READ_BUF(4); 30611da177e4SLinus Torvalds READ32(*nlink); 30621da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3063409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 30641da177e4SLinus Torvalds } 30653110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3066409924e4STrond Myklebust return ret; 30671da177e4SLinus Torvalds } 30681da177e4SLinus Torvalds 30692e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 30701da177e4SLinus Torvalds { 30718687b63aSAl Viro uint32_t len; 30728687b63aSAl Viro __be32 *p; 3073409924e4STrond Myklebust int ret = 0; 30741da177e4SLinus Torvalds 30751da177e4SLinus Torvalds *uid = -2; 30761da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 30771da177e4SLinus Torvalds return -EIO; 30781da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 30791da177e4SLinus Torvalds READ_BUF(4); 30801da177e4SLinus Torvalds READ32(len); 30811da177e4SLinus Torvalds READ_BUF(len); 30821da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3083409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3084409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3085409924e4STrond Myklebust else 30861da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 30873110ff80SHarvey Harrison __func__); 30881da177e4SLinus Torvalds } else 3089fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 30903110ff80SHarvey Harrison __func__, len); 30911da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 30921da177e4SLinus Torvalds } 30933110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3094409924e4STrond Myklebust return ret; 30951da177e4SLinus Torvalds } 30961da177e4SLinus Torvalds 30972e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 30981da177e4SLinus Torvalds { 30998687b63aSAl Viro uint32_t len; 31008687b63aSAl Viro __be32 *p; 3101409924e4STrond Myklebust int ret = 0; 31021da177e4SLinus Torvalds 31031da177e4SLinus Torvalds *gid = -2; 31041da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 31051da177e4SLinus Torvalds return -EIO; 31061da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 31071da177e4SLinus Torvalds READ_BUF(4); 31081da177e4SLinus Torvalds READ32(len); 31091da177e4SLinus Torvalds READ_BUF(len); 31101da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3111409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3112409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3113409924e4STrond Myklebust else 31141da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 31153110ff80SHarvey Harrison __func__); 31161da177e4SLinus Torvalds } else 3117fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 31183110ff80SHarvey Harrison __func__, len); 31191da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 31201da177e4SLinus Torvalds } 31213110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3122409924e4STrond Myklebust return ret; 31231da177e4SLinus Torvalds } 31241da177e4SLinus Torvalds 31251da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 31261da177e4SLinus Torvalds { 31278687b63aSAl Viro uint32_t major = 0, minor = 0; 31288687b63aSAl Viro __be32 *p; 3129409924e4STrond Myklebust int ret = 0; 31301da177e4SLinus Torvalds 31311da177e4SLinus Torvalds *rdev = MKDEV(0,0); 31321da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 31331da177e4SLinus Torvalds return -EIO; 31341da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 31351da177e4SLinus Torvalds dev_t tmp; 31361da177e4SLinus Torvalds 31371da177e4SLinus Torvalds READ_BUF(8); 31381da177e4SLinus Torvalds READ32(major); 31391da177e4SLinus Torvalds READ32(minor); 31401da177e4SLinus Torvalds tmp = MKDEV(major, minor); 31411da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 31421da177e4SLinus Torvalds *rdev = tmp; 31431da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3144409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 31451da177e4SLinus Torvalds } 31463110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3147409924e4STrond Myklebust return ret; 31481da177e4SLinus Torvalds } 31491da177e4SLinus Torvalds 31501da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31511da177e4SLinus Torvalds { 31528687b63aSAl Viro __be32 *p; 31531da177e4SLinus Torvalds int status = 0; 31541da177e4SLinus Torvalds 31551da177e4SLinus Torvalds *res = 0; 31561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 31571da177e4SLinus Torvalds return -EIO; 31581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 31591da177e4SLinus Torvalds READ_BUF(8); 31601da177e4SLinus Torvalds READ64(*res); 31611da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 31621da177e4SLinus Torvalds } 31633110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 31641da177e4SLinus Torvalds return status; 31651da177e4SLinus Torvalds } 31661da177e4SLinus Torvalds 31671da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31681da177e4SLinus Torvalds { 31698687b63aSAl Viro __be32 *p; 31701da177e4SLinus Torvalds int status = 0; 31711da177e4SLinus Torvalds 31721da177e4SLinus Torvalds *res = 0; 31731da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 31741da177e4SLinus Torvalds return -EIO; 31751da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 31761da177e4SLinus Torvalds READ_BUF(8); 31771da177e4SLinus Torvalds READ64(*res); 31781da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 31791da177e4SLinus Torvalds } 31803110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 31811da177e4SLinus Torvalds return status; 31821da177e4SLinus Torvalds } 31831da177e4SLinus Torvalds 31841da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31851da177e4SLinus Torvalds { 31868687b63aSAl Viro __be32 *p; 31871da177e4SLinus Torvalds int status = 0; 31881da177e4SLinus Torvalds 31891da177e4SLinus Torvalds *res = 0; 31901da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 31911da177e4SLinus Torvalds return -EIO; 31921da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 31931da177e4SLinus Torvalds READ_BUF(8); 31941da177e4SLinus Torvalds READ64(*res); 31951da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 31961da177e4SLinus Torvalds } 31973110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 31981da177e4SLinus Torvalds return status; 31991da177e4SLinus Torvalds } 32001da177e4SLinus Torvalds 32011da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 32021da177e4SLinus Torvalds { 32038687b63aSAl Viro __be32 *p; 3204409924e4STrond Myklebust int ret = 0; 32051da177e4SLinus Torvalds 32061da177e4SLinus Torvalds *used = 0; 32071da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 32081da177e4SLinus Torvalds return -EIO; 32091da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 32101da177e4SLinus Torvalds READ_BUF(8); 32111da177e4SLinus Torvalds READ64(*used); 32121da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3213409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 32141da177e4SLinus Torvalds } 32153110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 32161da177e4SLinus Torvalds (unsigned long long)*used); 3217409924e4STrond Myklebust return ret; 32181da177e4SLinus Torvalds } 32191da177e4SLinus Torvalds 32201da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 32211da177e4SLinus Torvalds { 32228687b63aSAl Viro __be32 *p; 32231da177e4SLinus Torvalds uint64_t sec; 32241da177e4SLinus Torvalds uint32_t nsec; 32251da177e4SLinus Torvalds 32261da177e4SLinus Torvalds READ_BUF(12); 32271da177e4SLinus Torvalds READ64(sec); 32281da177e4SLinus Torvalds READ32(nsec); 32291da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 32301da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 32311da177e4SLinus Torvalds return 0; 32321da177e4SLinus Torvalds } 32331da177e4SLinus Torvalds 32341da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32351da177e4SLinus Torvalds { 32361da177e4SLinus Torvalds int status = 0; 32371da177e4SLinus Torvalds 32381da177e4SLinus Torvalds time->tv_sec = 0; 32391da177e4SLinus Torvalds time->tv_nsec = 0; 32401da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 32411da177e4SLinus Torvalds return -EIO; 32421da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 32431da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3244409924e4STrond Myklebust if (status == 0) 3245409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 32461da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 32471da177e4SLinus Torvalds } 32483110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 32491da177e4SLinus Torvalds return status; 32501da177e4SLinus Torvalds } 32511da177e4SLinus Torvalds 32521da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32531da177e4SLinus Torvalds { 32541da177e4SLinus Torvalds int status = 0; 32551da177e4SLinus Torvalds 32561da177e4SLinus Torvalds time->tv_sec = 0; 32571da177e4SLinus Torvalds time->tv_nsec = 0; 32581da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 32591da177e4SLinus Torvalds return -EIO; 32601da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 32611da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3262409924e4STrond Myklebust if (status == 0) 3263409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 32641da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 32651da177e4SLinus Torvalds } 32663110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 32671da177e4SLinus Torvalds return status; 32681da177e4SLinus Torvalds } 32691da177e4SLinus Torvalds 32701da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32711da177e4SLinus Torvalds { 32721da177e4SLinus Torvalds int status = 0; 32731da177e4SLinus Torvalds 32741da177e4SLinus Torvalds time->tv_sec = 0; 32751da177e4SLinus Torvalds time->tv_nsec = 0; 32761da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 32771da177e4SLinus Torvalds return -EIO; 32781da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 32791da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3280409924e4STrond Myklebust if (status == 0) 3281409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 32821da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 32831da177e4SLinus Torvalds } 32843110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 32851da177e4SLinus Torvalds return status; 32861da177e4SLinus Torvalds } 32871da177e4SLinus Torvalds 32888687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 32891da177e4SLinus Torvalds { 32901da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 32911da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 32921da177e4SLinus Torvalds 32931da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3294fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3295fe82a183SChuck Lever "%u %c %u\n", 32963110ff80SHarvey Harrison __func__, 32971da177e4SLinus Torvalds attrwords << 2, 32981da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 32991da177e4SLinus Torvalds nwords << 2); 33001da177e4SLinus Torvalds return -EIO; 33011da177e4SLinus Torvalds } 33021da177e4SLinus Torvalds return 0; 33031da177e4SLinus Torvalds } 33041da177e4SLinus Torvalds 33051da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 33061da177e4SLinus Torvalds { 33078687b63aSAl Viro __be32 *p; 33081da177e4SLinus Torvalds 33091da177e4SLinus Torvalds READ_BUF(20); 33101da177e4SLinus Torvalds READ32(cinfo->atomic); 33111da177e4SLinus Torvalds READ64(cinfo->before); 33121da177e4SLinus Torvalds READ64(cinfo->after); 33131da177e4SLinus Torvalds return 0; 33141da177e4SLinus Torvalds } 33151da177e4SLinus Torvalds 33161da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 33171da177e4SLinus Torvalds { 33188687b63aSAl Viro __be32 *p; 33191da177e4SLinus Torvalds uint32_t supp, acc; 33201da177e4SLinus Torvalds int status; 33211da177e4SLinus Torvalds 33221da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 33231da177e4SLinus Torvalds if (status) 33241da177e4SLinus Torvalds return status; 33251da177e4SLinus Torvalds READ_BUF(8); 33261da177e4SLinus Torvalds READ32(supp); 33271da177e4SLinus Torvalds READ32(acc); 33281da177e4SLinus Torvalds access->supported = supp; 33291da177e4SLinus Torvalds access->access = acc; 33301da177e4SLinus Torvalds return 0; 33311da177e4SLinus Torvalds } 33321da177e4SLinus Torvalds 33331da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 33341da177e4SLinus Torvalds { 33358687b63aSAl Viro __be32 *p; 33361da177e4SLinus Torvalds int status; 33371da177e4SLinus Torvalds 33381da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3339c1d51931STrond Myklebust if (status != -EIO) 3340c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33411da177e4SLinus Torvalds if (status) 33421da177e4SLinus Torvalds return status; 33438ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33448ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33451da177e4SLinus Torvalds return 0; 33461da177e4SLinus Torvalds } 33471da177e4SLinus Torvalds 33481da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 33491da177e4SLinus Torvalds { 33508687b63aSAl Viro __be32 *p; 33511da177e4SLinus Torvalds int status; 33521da177e4SLinus Torvalds 33531da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 33541da177e4SLinus Torvalds if (status) 33551da177e4SLinus Torvalds return status; 33561da177e4SLinus Torvalds READ_BUF(8); 33571da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 33581da177e4SLinus Torvalds return 0; 33591da177e4SLinus Torvalds } 33601da177e4SLinus Torvalds 33611da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 33621da177e4SLinus Torvalds { 33638687b63aSAl Viro __be32 *p; 33641da177e4SLinus Torvalds uint32_t bmlen; 33651da177e4SLinus Torvalds int status; 33661da177e4SLinus Torvalds 33671da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 33681da177e4SLinus Torvalds if (status) 33691da177e4SLinus Torvalds return status; 33701da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 33711da177e4SLinus Torvalds return status; 33721da177e4SLinus Torvalds READ_BUF(4); 33731da177e4SLinus Torvalds READ32(bmlen); 33741da177e4SLinus Torvalds READ_BUF(bmlen << 2); 33751da177e4SLinus Torvalds return 0; 33761da177e4SLinus Torvalds } 33771da177e4SLinus Torvalds 33781da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 33791da177e4SLinus Torvalds { 33808687b63aSAl Viro __be32 *savep; 33816c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 33821da177e4SLinus Torvalds int status; 33831da177e4SLinus Torvalds 33841da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 33851da177e4SLinus Torvalds goto xdr_error; 33861da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 33871da177e4SLinus Torvalds goto xdr_error; 33881da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 33891da177e4SLinus Torvalds goto xdr_error; 33901da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 33911da177e4SLinus Torvalds goto xdr_error; 33921da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 33931da177e4SLinus Torvalds goto xdr_error; 33941da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 33951da177e4SLinus Torvalds goto xdr_error; 33961da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 33971da177e4SLinus Torvalds goto xdr_error; 33981da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 33991da177e4SLinus Torvalds xdr_error: 34003110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34011da177e4SLinus Torvalds return status; 34021da177e4SLinus Torvalds } 34031da177e4SLinus Torvalds 34041da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 34051da177e4SLinus Torvalds { 34068687b63aSAl Viro __be32 *savep; 34076c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 34081da177e4SLinus Torvalds int status; 34091da177e4SLinus Torvalds 34101da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 34111da177e4SLinus Torvalds goto xdr_error; 34121da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 34131da177e4SLinus Torvalds goto xdr_error; 34141da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 34151da177e4SLinus Torvalds goto xdr_error; 34161da177e4SLinus Torvalds 34171da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 34181da177e4SLinus Torvalds goto xdr_error; 34191da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 34201da177e4SLinus Torvalds goto xdr_error; 34211da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 34221da177e4SLinus Torvalds goto xdr_error; 34231da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 34241da177e4SLinus Torvalds goto xdr_error; 34251da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 34261da177e4SLinus Torvalds goto xdr_error; 34271da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 34281da177e4SLinus Torvalds goto xdr_error; 34291da177e4SLinus Torvalds 34301da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34311da177e4SLinus Torvalds xdr_error: 34323110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34331da177e4SLinus Torvalds return status; 34341da177e4SLinus Torvalds } 34351da177e4SLinus Torvalds 34361da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 34371da177e4SLinus Torvalds { 34388687b63aSAl Viro __be32 *savep; 34396c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 34401da177e4SLinus Torvalds int status; 34411da177e4SLinus Torvalds 34421da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 34431da177e4SLinus Torvalds goto xdr_error; 34441da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 34451da177e4SLinus Torvalds goto xdr_error; 34461da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 34471da177e4SLinus Torvalds goto xdr_error; 34481da177e4SLinus Torvalds 34491da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 34501da177e4SLinus Torvalds goto xdr_error; 34511da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 34521da177e4SLinus Torvalds goto xdr_error; 34531da177e4SLinus Torvalds 34541da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34551da177e4SLinus Torvalds xdr_error: 34563110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34571da177e4SLinus Torvalds return status; 34581da177e4SLinus Torvalds } 34591da177e4SLinus Torvalds 34601da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 34611da177e4SLinus Torvalds { 34628687b63aSAl Viro __be32 *savep; 34631da177e4SLinus Torvalds uint32_t attrlen, 34641da177e4SLinus Torvalds bitmap[2] = {0}, 34651da177e4SLinus Torvalds type; 3466bca79478STrond Myklebust int status; 3467bca79478STrond Myklebust umode_t fmode = 0; 346899baf625SManoj Naik uint64_t fileid; 34691da177e4SLinus Torvalds 3470f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3471f26c7a78STrond Myklebust if (status < 0) 34721da177e4SLinus Torvalds goto xdr_error; 34731da177e4SLinus Torvalds 3474f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3475f26c7a78STrond Myklebust if (status < 0) 3476f26c7a78STrond Myklebust goto xdr_error; 3477f26c7a78STrond Myklebust 3478f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3479f26c7a78STrond Myklebust if (status < 0) 34801da177e4SLinus Torvalds goto xdr_error; 34811da177e4SLinus Torvalds 34821da177e4SLinus Torvalds 3483f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3484f26c7a78STrond Myklebust if (status < 0) 34851da177e4SLinus Torvalds goto xdr_error; 3486409924e4STrond Myklebust fattr->mode = 0; 3487409924e4STrond Myklebust if (status != 0) { 3488409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3489409924e4STrond Myklebust fattr->valid |= status; 3490409924e4STrond Myklebust } 34911da177e4SLinus Torvalds 3492f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3493f26c7a78STrond Myklebust if (status < 0) 34941da177e4SLinus Torvalds goto xdr_error; 3495409924e4STrond Myklebust fattr->valid |= status; 3496f26c7a78STrond Myklebust 3497f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3498f26c7a78STrond Myklebust if (status < 0) 34991da177e4SLinus Torvalds goto xdr_error; 3500409924e4STrond Myklebust fattr->valid |= status; 3501f26c7a78STrond Myklebust 3502f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3503f26c7a78STrond Myklebust if (status < 0) 35041da177e4SLinus Torvalds goto xdr_error; 3505409924e4STrond Myklebust fattr->valid |= status; 3506f26c7a78STrond Myklebust 3507f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3508f26c7a78STrond Myklebust if (status < 0) 35091da177e4SLinus Torvalds goto xdr_error; 3510409924e4STrond Myklebust fattr->valid |= status; 3511f26c7a78STrond Myklebust 3512f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 35137aaa0b3bSManoj Naik struct nfs4_fs_locations, 3514f26c7a78STrond Myklebust fattr)); 3515f26c7a78STrond Myklebust if (status < 0) 3516683b57b4STrond Myklebust goto xdr_error; 3517409924e4STrond Myklebust fattr->valid |= status; 3518f26c7a78STrond Myklebust 3519f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3520f26c7a78STrond Myklebust if (status < 0) 35211da177e4SLinus Torvalds goto xdr_error; 3522409924e4STrond Myklebust if (status != 0) { 35231da177e4SLinus Torvalds fattr->mode |= fmode; 3524409924e4STrond Myklebust fattr->valid |= status; 3525409924e4STrond Myklebust } 3526f26c7a78STrond Myklebust 3527f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3528f26c7a78STrond Myklebust if (status < 0) 35291da177e4SLinus Torvalds goto xdr_error; 3530409924e4STrond Myklebust fattr->valid |= status; 3531f26c7a78STrond Myklebust 3532f26c7a78STrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); 3533f26c7a78STrond Myklebust if (status < 0) 35341da177e4SLinus Torvalds goto xdr_error; 3535409924e4STrond Myklebust fattr->valid |= status; 3536f26c7a78STrond Myklebust 3537f26c7a78STrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); 3538f26c7a78STrond Myklebust if (status < 0) 35391da177e4SLinus Torvalds goto xdr_error; 3540409924e4STrond Myklebust fattr->valid |= status; 3541f26c7a78STrond Myklebust 3542f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3543f26c7a78STrond Myklebust if (status < 0) 35441da177e4SLinus Torvalds goto xdr_error; 3545409924e4STrond Myklebust fattr->valid |= status; 3546f26c7a78STrond Myklebust 3547f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3548f26c7a78STrond Myklebust if (status < 0) 35491da177e4SLinus Torvalds goto xdr_error; 3550409924e4STrond Myklebust fattr->valid |= status; 3551f26c7a78STrond Myklebust 3552f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3553f26c7a78STrond Myklebust if (status < 0) 35541da177e4SLinus Torvalds goto xdr_error; 3555409924e4STrond Myklebust fattr->valid |= status; 3556f26c7a78STrond Myklebust 3557f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3558f26c7a78STrond Myklebust if (status < 0) 35591da177e4SLinus Torvalds goto xdr_error; 3560409924e4STrond Myklebust fattr->valid |= status; 3561f26c7a78STrond Myklebust 3562f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3563f26c7a78STrond Myklebust if (status < 0) 35641da177e4SLinus Torvalds goto xdr_error; 3565409924e4STrond Myklebust fattr->valid |= status; 3566f26c7a78STrond Myklebust 3567f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3568f26c7a78STrond Myklebust if (status < 0) 356999baf625SManoj Naik goto xdr_error; 3570409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 357199baf625SManoj Naik fattr->fileid = fileid; 3572409924e4STrond Myklebust fattr->valid |= status; 3573409924e4STrond Myklebust } 3574f26c7a78STrond Myklebust 3575f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 35761da177e4SLinus Torvalds xdr_error: 35773110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 35781da177e4SLinus Torvalds return status; 35791da177e4SLinus Torvalds } 35801da177e4SLinus Torvalds 35811da177e4SLinus Torvalds 35821da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 35831da177e4SLinus Torvalds { 35848687b63aSAl Viro __be32 *savep; 35851da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 35861da177e4SLinus Torvalds int status; 35871da177e4SLinus Torvalds 35881da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 35891da177e4SLinus Torvalds goto xdr_error; 35901da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 35911da177e4SLinus Torvalds goto xdr_error; 35921da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 35931da177e4SLinus Torvalds goto xdr_error; 35941da177e4SLinus Torvalds 35951da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 35961da177e4SLinus Torvalds 35971da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 35981da177e4SLinus Torvalds goto xdr_error; 35991da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 36001da177e4SLinus Torvalds goto xdr_error; 36011da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 36021da177e4SLinus Torvalds goto xdr_error; 36031da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 36041da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 36051da177e4SLinus Torvalds goto xdr_error; 36061da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 36071da177e4SLinus Torvalds 36081da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36091da177e4SLinus Torvalds xdr_error: 36103110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 36111da177e4SLinus Torvalds return status; 36121da177e4SLinus Torvalds } 36131da177e4SLinus Torvalds 36141da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 36151da177e4SLinus Torvalds { 36168687b63aSAl Viro __be32 *p; 36171da177e4SLinus Torvalds uint32_t len; 36181da177e4SLinus Torvalds int status; 36191da177e4SLinus Torvalds 36209936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 36219936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 36229936781dSTrond Myklebust 36231da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 36241da177e4SLinus Torvalds if (status) 36251da177e4SLinus Torvalds return status; 36261da177e4SLinus Torvalds 36271da177e4SLinus Torvalds READ_BUF(4); 36281da177e4SLinus Torvalds READ32(len); 36291da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 36301da177e4SLinus Torvalds return -EIO; 36311da177e4SLinus Torvalds fh->size = len; 36321da177e4SLinus Torvalds READ_BUF(len); 36331da177e4SLinus Torvalds COPYMEM(fh->data, len); 36341da177e4SLinus Torvalds return 0; 36351da177e4SLinus Torvalds } 36361da177e4SLinus Torvalds 36371da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36381da177e4SLinus Torvalds { 36391da177e4SLinus Torvalds int status; 36401da177e4SLinus Torvalds 36411da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 36421da177e4SLinus Torvalds if (status) 36431da177e4SLinus Torvalds return status; 36441da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 36451da177e4SLinus Torvalds } 36461da177e4SLinus Torvalds 36471da177e4SLinus Torvalds /* 36481da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 36491da177e4SLinus Torvalds */ 3650911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 36511da177e4SLinus Torvalds { 3652911d1aafSTrond Myklebust uint64_t offset, length, clientid; 36538687b63aSAl Viro __be32 *p; 3654911d1aafSTrond Myklebust uint32_t namelen, type; 36551da177e4SLinus Torvalds 36561da177e4SLinus Torvalds READ_BUF(32); 3657911d1aafSTrond Myklebust READ64(offset); 3658911d1aafSTrond Myklebust READ64(length); 3659911d1aafSTrond Myklebust READ32(type); 3660911d1aafSTrond Myklebust if (fl != NULL) { 3661911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3662911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3663911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3664911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3665911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3666911d1aafSTrond Myklebust if (type & 1) 3667911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3668911d1aafSTrond Myklebust fl->fl_pid = 0; 3669911d1aafSTrond Myklebust } 3670911d1aafSTrond Myklebust READ64(clientid); 36711da177e4SLinus Torvalds READ32(namelen); 36721da177e4SLinus Torvalds READ_BUF(namelen); 36731da177e4SLinus Torvalds return -NFS4ERR_DENIED; 36741da177e4SLinus Torvalds } 36751da177e4SLinus Torvalds 3676911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 36771da177e4SLinus Torvalds { 36788687b63aSAl Viro __be32 *p; 36791da177e4SLinus Torvalds int status; 36801da177e4SLinus Torvalds 36811da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3682c1d51931STrond Myklebust if (status == -EIO) 3683c1d51931STrond Myklebust goto out; 36841da177e4SLinus Torvalds if (status == 0) { 36858ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 36868ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 36871da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3688c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3689c1d51931STrond Myklebust if (res->open_seqid != NULL) 3690c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3691c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3692c1d51931STrond Myklebust out: 36931da177e4SLinus Torvalds return status; 36941da177e4SLinus Torvalds } 36951da177e4SLinus Torvalds 3696911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 36971da177e4SLinus Torvalds { 36981da177e4SLinus Torvalds int status; 36991da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 37001da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3701911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 37021da177e4SLinus Torvalds return status; 37031da177e4SLinus Torvalds } 37041da177e4SLinus Torvalds 3705911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 37061da177e4SLinus Torvalds { 37078687b63aSAl Viro __be32 *p; 37081da177e4SLinus Torvalds int status; 37091da177e4SLinus Torvalds 37101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3711c1d51931STrond Myklebust if (status != -EIO) 3712c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 37131da177e4SLinus Torvalds if (status == 0) { 37148ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37158ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37161da177e4SLinus Torvalds } 37171da177e4SLinus Torvalds return status; 37181da177e4SLinus Torvalds } 37191da177e4SLinus Torvalds 37201da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 37211da177e4SLinus Torvalds { 37221da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 37231da177e4SLinus Torvalds } 37241da177e4SLinus Torvalds 37251da177e4SLinus Torvalds /* This is too sick! */ 37261da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 37271da177e4SLinus Torvalds { 37288687b63aSAl Viro __be32 *p; 37291da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 37301da177e4SLinus Torvalds 37311da177e4SLinus Torvalds READ_BUF(12); 37321da177e4SLinus Torvalds READ32(limit_type); 37331da177e4SLinus Torvalds switch (limit_type) { 37341da177e4SLinus Torvalds case 1: 37351da177e4SLinus Torvalds READ64(*maxsize); 37361da177e4SLinus Torvalds break; 37371da177e4SLinus Torvalds case 2: 37381da177e4SLinus Torvalds READ32(nblocks); 37391da177e4SLinus Torvalds READ32(blocksize); 37401da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 37411da177e4SLinus Torvalds } 37421da177e4SLinus Torvalds return 0; 37431da177e4SLinus Torvalds } 37441da177e4SLinus Torvalds 37451da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 37461da177e4SLinus Torvalds { 37478687b63aSAl Viro __be32 *p; 37481da177e4SLinus Torvalds uint32_t delegation_type; 37491da177e4SLinus Torvalds 37501da177e4SLinus Torvalds READ_BUF(4); 37511da177e4SLinus Torvalds READ32(delegation_type); 37521da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 37531da177e4SLinus Torvalds res->delegation_type = 0; 37541da177e4SLinus Torvalds return 0; 37551da177e4SLinus Torvalds } 37568ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 37578ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 37581da177e4SLinus Torvalds READ32(res->do_recall); 375905d564feSAndy Adamson 37601da177e4SLinus Torvalds switch (delegation_type) { 37611da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 37621da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 37631da177e4SLinus Torvalds break; 37641da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 37651da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 37661da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 37671da177e4SLinus Torvalds return -EIO; 37681da177e4SLinus Torvalds } 37697539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 37701da177e4SLinus Torvalds } 37711da177e4SLinus Torvalds 37721da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 37731da177e4SLinus Torvalds { 37748687b63aSAl Viro __be32 *p; 3775aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 37761da177e4SLinus Torvalds int status; 37771da177e4SLinus Torvalds 37781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 3779c1d51931STrond Myklebust if (status != -EIO) 3780c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 37811da177e4SLinus Torvalds if (status) 37821da177e4SLinus Torvalds return status; 37838ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37848ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37851da177e4SLinus Torvalds 37861da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 37871da177e4SLinus Torvalds 37881da177e4SLinus Torvalds READ_BUF(8); 37891da177e4SLinus Torvalds READ32(res->rflags); 37901da177e4SLinus Torvalds READ32(bmlen); 37911da177e4SLinus Torvalds if (bmlen > 10) 37921da177e4SLinus Torvalds goto xdr_error; 37931da177e4SLinus Torvalds 37941da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3795aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3796aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3797aa53ed54SJeff Layton READ32(res->attrset[i]); 3798aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3799aa53ed54SJeff Layton res->attrset[i] = 0; 3800aa53ed54SJeff Layton 38011da177e4SLinus Torvalds return decode_delegation(xdr, res); 38021da177e4SLinus Torvalds xdr_error: 38033110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 38041da177e4SLinus Torvalds return -EIO; 38051da177e4SLinus Torvalds } 38061da177e4SLinus Torvalds 38071da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 38081da177e4SLinus Torvalds { 38098687b63aSAl Viro __be32 *p; 38101da177e4SLinus Torvalds int status; 38111da177e4SLinus Torvalds 38121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 3813c1d51931STrond Myklebust if (status != -EIO) 3814c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 38151da177e4SLinus Torvalds if (status) 38161da177e4SLinus Torvalds return status; 38178ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 38188ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 38191da177e4SLinus Torvalds return 0; 38201da177e4SLinus Torvalds } 38211da177e4SLinus Torvalds 38221da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 38231da177e4SLinus Torvalds { 38248687b63aSAl Viro __be32 *p; 38251da177e4SLinus Torvalds int status; 38261da177e4SLinus Torvalds 38271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 3828c1d51931STrond Myklebust if (status != -EIO) 3829c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 38301da177e4SLinus Torvalds if (status) 38311da177e4SLinus Torvalds return status; 38328ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 38338ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 38341da177e4SLinus Torvalds return 0; 38351da177e4SLinus Torvalds } 38361da177e4SLinus Torvalds 38371da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 38381da177e4SLinus Torvalds { 38391da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 38401da177e4SLinus Torvalds } 38411da177e4SLinus Torvalds 38421da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 38431da177e4SLinus Torvalds { 38441da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 38451da177e4SLinus Torvalds } 38461da177e4SLinus Torvalds 38471da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 38481da177e4SLinus Torvalds { 38491da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 38508687b63aSAl Viro __be32 *p; 38511da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 38521da177e4SLinus Torvalds int status; 38531da177e4SLinus Torvalds 38541da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 38551da177e4SLinus Torvalds if (status) 38561da177e4SLinus Torvalds return status; 38571da177e4SLinus Torvalds READ_BUF(8); 38581da177e4SLinus Torvalds READ32(eof); 38591da177e4SLinus Torvalds READ32(count); 38601da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 38611da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 38621da177e4SLinus Torvalds if (count > recvd) { 3863fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 38641da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 38651da177e4SLinus Torvalds count = recvd; 38661da177e4SLinus Torvalds eof = 0; 38671da177e4SLinus Torvalds } 38681da177e4SLinus Torvalds xdr_read_pages(xdr, count); 38691da177e4SLinus Torvalds res->eof = eof; 38701da177e4SLinus Torvalds res->count = count; 38711da177e4SLinus Torvalds return 0; 38721da177e4SLinus Torvalds } 38731da177e4SLinus Torvalds 38741da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 38751da177e4SLinus Torvalds { 38761da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 38771da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 38781da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3879bcecff77SChuck Lever size_t hdrlen; 3880bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 38818687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 38827bda2cdfSJeff Layton unsigned int nr = 0; 3883bcecff77SChuck Lever int status; 38841da177e4SLinus Torvalds 38851da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 38861da177e4SLinus Torvalds if (status) 38871da177e4SLinus Torvalds return status; 38881da177e4SLinus Torvalds READ_BUF(8); 38891da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 389044109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 389144109241SFred Isaman __func__, 3892eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3893eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3894eadf4598STrond Myklebust 38951da177e4SLinus Torvalds 38961da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 38971da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 38981da177e4SLinus Torvalds if (pglen > recvd) 38991da177e4SLinus Torvalds pglen = recvd; 39001da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 39011da177e4SLinus Torvalds 39021da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 39038687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3904e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 39051da177e4SLinus Torvalds entry = p; 39067bda2cdfSJeff Layton 39077bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 39087bda2cdfSJeff Layton if ((entry + 1) > end) 39097bda2cdfSJeff Layton goto short_pkt; 39107bda2cdfSJeff Layton 39117bda2cdfSJeff Layton for (; *p++; nr++) { 3912bcecff77SChuck Lever u32 len, attrlen, xlen; 3913e8896495SDavid Howells if (end - p < 3) 39141da177e4SLinus Torvalds goto short_pkt; 3915eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 39161da177e4SLinus Torvalds p += 2; /* cookie */ 39171da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 39181da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3919fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3920fe82a183SChuck Lever len); 39211da177e4SLinus Torvalds goto err_unmap; 39221da177e4SLinus Torvalds } 3923e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3924e8896495SDavid Howells if (end - p < xlen + 1) 3925e8896495SDavid Howells goto short_pkt; 3926eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3927e8896495SDavid Howells p += xlen; 39281da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3929e8896495SDavid Howells if (end - p < len + 1) 3930e8896495SDavid Howells goto short_pkt; 39311da177e4SLinus Torvalds p += len; 39321da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3933e8896495SDavid Howells if (end - p < attrlen + 2) 39341da177e4SLinus Torvalds goto short_pkt; 3935e8896495SDavid Howells p += attrlen; /* attributes */ 39361da177e4SLinus Torvalds entry = p; 39371da177e4SLinus Torvalds } 39387bda2cdfSJeff Layton /* 39397bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 39407bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 39417bda2cdfSJeff Layton * those, just set the EOF marker. 39427bda2cdfSJeff Layton */ 39437bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 39447bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 39457bda2cdfSJeff Layton entry[1] = 1; 39467bda2cdfSJeff Layton } 39471da177e4SLinus Torvalds out: 39481da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39491da177e4SLinus Torvalds return 0; 39501da177e4SLinus Torvalds short_pkt: 39517bda2cdfSJeff Layton /* 39527bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 39537bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 39547bda2cdfSJeff Layton * response and return what we have so far. If there are no 39557bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 39567bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 39577bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 39587bda2cdfSJeff Layton * readdir starting at the last cookie. 39597bda2cdfSJeff Layton */ 39603110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 39611da177e4SLinus Torvalds entry[0] = entry[1] = 0; 39627bda2cdfSJeff Layton if (nr) 39631da177e4SLinus Torvalds goto out; 39641da177e4SLinus Torvalds err_unmap: 39651da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39661da177e4SLinus Torvalds return -errno_NFSERR_IO; 39671da177e4SLinus Torvalds } 39681da177e4SLinus Torvalds 39691da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 39701da177e4SLinus Torvalds { 39711da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 39721da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3973bcecff77SChuck Lever size_t hdrlen; 3974bcecff77SChuck Lever u32 len, recvd; 39758687b63aSAl Viro __be32 *p; 39761da177e4SLinus Torvalds char *kaddr; 39771da177e4SLinus Torvalds int status; 39781da177e4SLinus Torvalds 39791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 39801da177e4SLinus Torvalds if (status) 39811da177e4SLinus Torvalds return status; 39821da177e4SLinus Torvalds 39831da177e4SLinus Torvalds /* Convert length of symlink */ 39841da177e4SLinus Torvalds READ_BUF(4); 39851da177e4SLinus Torvalds READ32(len); 39861da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3987fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 39881da177e4SLinus Torvalds return -ENAMETOOLONG; 39891da177e4SLinus Torvalds } 39901da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 39911da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 39921da177e4SLinus Torvalds if (recvd < len) { 3993fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 39941da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 39951da177e4SLinus Torvalds return -EIO; 39961da177e4SLinus Torvalds } 39971da177e4SLinus Torvalds xdr_read_pages(xdr, len); 39981da177e4SLinus Torvalds /* 39991da177e4SLinus Torvalds * The XDR encode routine has set things up so that 40001da177e4SLinus Torvalds * the link text will be copied directly into the 40011da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 40021da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 40031da177e4SLinus Torvalds * null-termination). 40041da177e4SLinus Torvalds */ 40051da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 40061da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 40071da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 40081da177e4SLinus Torvalds return 0; 40091da177e4SLinus Torvalds } 40101da177e4SLinus Torvalds 40111da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40121da177e4SLinus Torvalds { 40131da177e4SLinus Torvalds int status; 40141da177e4SLinus Torvalds 40151da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 40161da177e4SLinus Torvalds if (status) 40171da177e4SLinus Torvalds goto out; 40181da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 40191da177e4SLinus Torvalds out: 40201da177e4SLinus Torvalds return status; 40211da177e4SLinus Torvalds } 40221da177e4SLinus Torvalds 40231da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 40241da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 40251da177e4SLinus Torvalds { 40261da177e4SLinus Torvalds int status; 40271da177e4SLinus Torvalds 40281da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 40291da177e4SLinus Torvalds if (status) 40301da177e4SLinus Torvalds goto out; 40311da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 40321da177e4SLinus Torvalds goto out; 40331da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 40341da177e4SLinus Torvalds out: 40351da177e4SLinus Torvalds return status; 40361da177e4SLinus Torvalds } 40371da177e4SLinus Torvalds 40381da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 40391da177e4SLinus Torvalds { 40401da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 40411da177e4SLinus Torvalds } 40421da177e4SLinus Torvalds 404356ae19f3STrond Myklebust static int 404456ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 404556ae19f3STrond Myklebust { 404656ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 404756ae19f3STrond Myklebust } 404856ae19f3STrond Myklebust 4049029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4050029d105eSJ. Bruce Fields size_t *acl_len) 4051029d105eSJ. Bruce Fields { 40528687b63aSAl Viro __be32 *savep; 4053029d105eSJ. Bruce Fields uint32_t attrlen, 4054029d105eSJ. Bruce Fields bitmap[2] = {0}; 4055029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4056029d105eSJ. Bruce Fields int status; 4057029d105eSJ. Bruce Fields 4058029d105eSJ. Bruce Fields *acl_len = 0; 4059029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4060029d105eSJ. Bruce Fields goto out; 4061029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4062029d105eSJ. Bruce Fields goto out; 4063029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4064029d105eSJ. Bruce Fields goto out; 4065029d105eSJ. Bruce Fields 4066029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4067029d105eSJ. Bruce Fields return -EIO; 4068029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4069bcecff77SChuck Lever size_t hdrlen; 4070bcecff77SChuck Lever u32 recvd; 4071029d105eSJ. Bruce Fields 4072029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4073029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4074029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4075029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4076029d105eSJ. Bruce Fields if (attrlen > recvd) { 4077fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4078029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4079029d105eSJ. Bruce Fields attrlen, recvd); 4080029d105eSJ. Bruce Fields return -EINVAL; 4081029d105eSJ. Bruce Fields } 4082029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4083029d105eSJ. Bruce Fields *acl_len = attrlen; 40848c233cf9SJ. Bruce Fields } else 40858c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4086029d105eSJ. Bruce Fields 4087029d105eSJ. Bruce Fields out: 4088029d105eSJ. Bruce Fields return status; 4089029d105eSJ. Bruce Fields } 4090029d105eSJ. Bruce Fields 40911da177e4SLinus Torvalds static int 40921da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 40931da177e4SLinus Torvalds { 40941da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 40951da177e4SLinus Torvalds } 40961da177e4SLinus Torvalds 40979e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 40981da177e4SLinus Torvalds { 40998687b63aSAl Viro __be32 *p; 41001da177e4SLinus Torvalds uint32_t bmlen; 41011da177e4SLinus Torvalds int status; 41021da177e4SLinus Torvalds 41031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 41041da177e4SLinus Torvalds if (status) 41051da177e4SLinus Torvalds return status; 41061da177e4SLinus Torvalds READ_BUF(4); 41071da177e4SLinus Torvalds READ32(bmlen); 41081da177e4SLinus Torvalds READ_BUF(bmlen << 2); 41091da177e4SLinus Torvalds return 0; 41101da177e4SLinus Torvalds } 41111da177e4SLinus Torvalds 4112adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 41131da177e4SLinus Torvalds { 41148687b63aSAl Viro __be32 *p; 41151da177e4SLinus Torvalds uint32_t opnum; 41161da177e4SLinus Torvalds int32_t nfserr; 41171da177e4SLinus Torvalds 41181da177e4SLinus Torvalds READ_BUF(8); 41191da177e4SLinus Torvalds READ32(opnum); 41201da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4121fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 41221da177e4SLinus Torvalds " %d\n", opnum); 41231da177e4SLinus Torvalds return -EIO; 41241da177e4SLinus Torvalds } 41251da177e4SLinus Torvalds READ32(nfserr); 41261da177e4SLinus Torvalds if (nfserr == NFS_OK) { 41278ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 41281da177e4SLinus Torvalds READ64(clp->cl_clientid); 41298ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 41301da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 41311da177e4SLinus Torvalds uint32_t len; 41321da177e4SLinus Torvalds 41331da177e4SLinus Torvalds /* skip netid string */ 41341da177e4SLinus Torvalds READ_BUF(4); 41351da177e4SLinus Torvalds READ32(len); 41361da177e4SLinus Torvalds READ_BUF(len); 41371da177e4SLinus Torvalds 41381da177e4SLinus Torvalds /* skip uaddr string */ 41391da177e4SLinus Torvalds READ_BUF(4); 41401da177e4SLinus Torvalds READ32(len); 41411da177e4SLinus Torvalds READ_BUF(len); 41421da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 41431da177e4SLinus Torvalds } else 4144856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 41451da177e4SLinus Torvalds 41461da177e4SLinus Torvalds return 0; 41471da177e4SLinus Torvalds } 41481da177e4SLinus Torvalds 41491da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 41501da177e4SLinus Torvalds { 41511da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 41521da177e4SLinus Torvalds } 41531da177e4SLinus Torvalds 41541da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 41551da177e4SLinus Torvalds { 41568687b63aSAl Viro __be32 *p; 41571da177e4SLinus Torvalds int status; 41581da177e4SLinus Torvalds 41591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 41601da177e4SLinus Torvalds if (status) 41611da177e4SLinus Torvalds return status; 41621da177e4SLinus Torvalds 41631da177e4SLinus Torvalds READ_BUF(16); 41641da177e4SLinus Torvalds READ32(res->count); 41651da177e4SLinus Torvalds READ32(res->verf->committed); 41661da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 41671da177e4SLinus Torvalds return 0; 41681da177e4SLinus Torvalds } 41691da177e4SLinus Torvalds 41701da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 41711da177e4SLinus Torvalds { 41721da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 41731da177e4SLinus Torvalds } 41741da177e4SLinus Torvalds 417599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 417699fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 417799fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 417899fe60d0SBenny Halevy { 417999fe60d0SBenny Halevy __be32 *p; 418099fe60d0SBenny Halevy uint32_t dummy; 418199fe60d0SBenny Halevy int status; 418299fe60d0SBenny Halevy struct nfs_client *clp = res->client; 418399fe60d0SBenny Halevy 418499fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 418599fe60d0SBenny Halevy if (status) 418699fe60d0SBenny Halevy return status; 418799fe60d0SBenny Halevy 418899fe60d0SBenny Halevy READ_BUF(8); 418999fe60d0SBenny Halevy READ64(clp->cl_ex_clid); 419099fe60d0SBenny Halevy READ_BUF(12); 419199fe60d0SBenny Halevy READ32(clp->cl_seqid); 419299fe60d0SBenny Halevy READ32(clp->cl_exchange_flags); 419399fe60d0SBenny Halevy 419499fe60d0SBenny Halevy /* We ask for SP4_NONE */ 419599fe60d0SBenny Halevy READ32(dummy); 419699fe60d0SBenny Halevy if (dummy != SP4_NONE) 419799fe60d0SBenny Halevy return -EIO; 419899fe60d0SBenny Halevy 419999fe60d0SBenny Halevy /* Throw away minor_id */ 420099fe60d0SBenny Halevy READ_BUF(8); 420199fe60d0SBenny Halevy 420299fe60d0SBenny Halevy /* Throw away Major id */ 420399fe60d0SBenny Halevy READ_BUF(4); 420499fe60d0SBenny Halevy READ32(dummy); 420599fe60d0SBenny Halevy READ_BUF(dummy); 420699fe60d0SBenny Halevy 420799fe60d0SBenny Halevy /* Throw away server_scope */ 420899fe60d0SBenny Halevy READ_BUF(4); 420999fe60d0SBenny Halevy READ32(dummy); 421099fe60d0SBenny Halevy READ_BUF(dummy); 421199fe60d0SBenny Halevy 421299fe60d0SBenny Halevy /* Throw away Implementation id array */ 421399fe60d0SBenny Halevy READ_BUF(4); 421499fe60d0SBenny Halevy READ32(dummy); 421599fe60d0SBenny Halevy READ_BUF(dummy); 421699fe60d0SBenny Halevy 421799fe60d0SBenny Halevy return 0; 421899fe60d0SBenny Halevy } 4219fc931582SAndy Adamson 4220fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4221fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4222fc931582SAndy Adamson { 4223fc931582SAndy Adamson __be32 *p; 4224fc931582SAndy Adamson u32 nr_attrs; 4225fc931582SAndy Adamson 4226fc931582SAndy Adamson READ_BUF(28); 4227fc931582SAndy Adamson READ32(attrs->headerpadsz); 4228fc931582SAndy Adamson READ32(attrs->max_rqst_sz); 4229fc931582SAndy Adamson READ32(attrs->max_resp_sz); 4230fc931582SAndy Adamson READ32(attrs->max_resp_sz_cached); 4231fc931582SAndy Adamson READ32(attrs->max_ops); 4232fc931582SAndy Adamson READ32(attrs->max_reqs); 4233fc931582SAndy Adamson READ32(nr_attrs); 4234fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4235fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4236fc931582SAndy Adamson __func__, nr_attrs); 4237fc931582SAndy Adamson return -EINVAL; 4238fc931582SAndy Adamson } 4239fc931582SAndy Adamson if (nr_attrs == 1) 4240fc931582SAndy Adamson READ_BUF(4); /* skip rdma_attrs */ 4241fc931582SAndy Adamson return 0; 4242fc931582SAndy Adamson } 4243fc931582SAndy Adamson 4244fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4245fc931582SAndy Adamson struct nfs41_create_session_res *res) 4246fc931582SAndy Adamson { 4247fc931582SAndy Adamson __be32 *p; 4248fc931582SAndy Adamson int status; 4249fc931582SAndy Adamson struct nfs_client *clp = res->client; 4250fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4251fc931582SAndy Adamson 4252fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4253fc931582SAndy Adamson 4254fc931582SAndy Adamson if (status) 4255fc931582SAndy Adamson return status; 4256fc931582SAndy Adamson 4257fc931582SAndy Adamson /* sessionid */ 4258fc931582SAndy Adamson READ_BUF(NFS4_MAX_SESSIONID_LEN); 4259fc931582SAndy Adamson COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); 4260fc931582SAndy Adamson 4261fc931582SAndy Adamson /* seqid, flags */ 4262fc931582SAndy Adamson READ_BUF(8); 4263fc931582SAndy Adamson READ32(clp->cl_seqid); 4264fc931582SAndy Adamson READ32(session->flags); 4265fc931582SAndy Adamson 4266fc931582SAndy Adamson /* Channel attributes */ 4267fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4268fc931582SAndy Adamson if (!status) 4269fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4270fc931582SAndy Adamson return status; 4271fc931582SAndy Adamson } 42720f3e66c6SAndy Adamson 42730f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 42740f3e66c6SAndy Adamson { 42750f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 42760f3e66c6SAndy Adamson } 427799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 427899fe60d0SBenny Halevy 42799b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 42809b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 42819b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 42829b7b9fccSAndy Adamson { 42839b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4284fc01cea9SAndy Adamson struct nfs4_slot *slot; 4285fc01cea9SAndy Adamson struct nfs4_sessionid id; 4286fc01cea9SAndy Adamson u32 dummy; 4287fc01cea9SAndy Adamson int status; 4288fc01cea9SAndy Adamson __be32 *p; 4289fc01cea9SAndy Adamson 42909b7b9fccSAndy Adamson if (!res->sr_session) 42919b7b9fccSAndy Adamson return 0; 42929b7b9fccSAndy Adamson 4293fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4294fc01cea9SAndy Adamson if (status) 4295fc01cea9SAndy Adamson goto out_err; 42969b7b9fccSAndy Adamson 4297fc01cea9SAndy Adamson /* 4298fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4299fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4300fc01cea9SAndy Adamson */ 4301fc01cea9SAndy Adamson status = -ESERVERFAULT; 4302fc01cea9SAndy Adamson 4303fc01cea9SAndy Adamson slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; 4304fc01cea9SAndy Adamson READ_BUF(NFS4_MAX_SESSIONID_LEN + 20); 4305fc01cea9SAndy Adamson COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN); 4306fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4307fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4308fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4309fc01cea9SAndy Adamson goto out_err; 4310fc01cea9SAndy Adamson } 4311fc01cea9SAndy Adamson /* seqid */ 4312fc01cea9SAndy Adamson READ32(dummy); 4313fc01cea9SAndy Adamson if (dummy != slot->seq_nr) { 4314fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4315fc01cea9SAndy Adamson goto out_err; 4316fc01cea9SAndy Adamson } 4317fc01cea9SAndy Adamson /* slot id */ 4318fc01cea9SAndy Adamson READ32(dummy); 4319fc01cea9SAndy Adamson if (dummy != res->sr_slotid) { 4320fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4321fc01cea9SAndy Adamson goto out_err; 4322fc01cea9SAndy Adamson } 4323fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 4324fc01cea9SAndy Adamson READ32(dummy); 4325fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 4326fc01cea9SAndy Adamson READ32(dummy); 4327fc01cea9SAndy Adamson /* result flags - currently not processed */ 4328fc01cea9SAndy Adamson READ32(dummy); 4329fc01cea9SAndy Adamson status = 0; 4330fc01cea9SAndy Adamson out_err: 4331fc01cea9SAndy Adamson res->sr_status = status; 4332fc01cea9SAndy Adamson return status; 4333fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 43349b7b9fccSAndy Adamson return 0; 4335fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 43369b7b9fccSAndy Adamson } 43379b7b9fccSAndy Adamson 43381da177e4SLinus Torvalds /* 433949c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 434049c2559eSBenny Halevy */ 434149c2559eSBenny Halevy 434249c2559eSBenny Halevy /* 43431da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 43441da177e4SLinus Torvalds */ 43458687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 43461da177e4SLinus Torvalds { 43471da177e4SLinus Torvalds struct xdr_stream xdr; 43481da177e4SLinus Torvalds struct compound_hdr hdr; 43491da177e4SLinus Torvalds int status; 43501da177e4SLinus Torvalds 43511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43531da177e4SLinus Torvalds if (status) 43541da177e4SLinus Torvalds goto out; 43559b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43569b7b9fccSAndy Adamson if (status) 43579b7b9fccSAndy Adamson goto out; 43581da177e4SLinus Torvalds status = decode_putfh(&xdr); 43591da177e4SLinus Torvalds if (status) 43601da177e4SLinus Torvalds goto out; 43611da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4362516a6af6STrond Myklebust if (status != 0) 4363516a6af6STrond Myklebust goto out; 4364516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43651da177e4SLinus Torvalds out: 43661da177e4SLinus Torvalds return status; 43671da177e4SLinus Torvalds } 43681da177e4SLinus Torvalds 43691da177e4SLinus Torvalds /* 43701da177e4SLinus Torvalds * Decode ACCESS response 43711da177e4SLinus Torvalds */ 43728687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 43731da177e4SLinus Torvalds { 43741da177e4SLinus Torvalds struct xdr_stream xdr; 43751da177e4SLinus Torvalds struct compound_hdr hdr; 43761da177e4SLinus Torvalds int status; 43771da177e4SLinus Torvalds 43781da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43799b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 43809b7b9fccSAndy Adamson if (status) 43819b7b9fccSAndy Adamson goto out; 43829b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43839b7b9fccSAndy Adamson if (status) 43841da177e4SLinus Torvalds goto out; 438576b32999STrond Myklebust status = decode_putfh(&xdr); 438676b32999STrond Myklebust if (status != 0) 438776b32999STrond Myklebust goto out; 43881da177e4SLinus Torvalds status = decode_access(&xdr, res); 438976b32999STrond Myklebust if (status != 0) 439076b32999STrond Myklebust goto out; 439176b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43921da177e4SLinus Torvalds out: 43931da177e4SLinus Torvalds return status; 43941da177e4SLinus Torvalds } 43951da177e4SLinus Torvalds 43961da177e4SLinus Torvalds /* 43971da177e4SLinus Torvalds * Decode LOOKUP response 43981da177e4SLinus Torvalds */ 43998687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 44001da177e4SLinus Torvalds { 44011da177e4SLinus Torvalds struct xdr_stream xdr; 44021da177e4SLinus Torvalds struct compound_hdr hdr; 44031da177e4SLinus Torvalds int status; 44041da177e4SLinus Torvalds 44051da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44069b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44079b7b9fccSAndy Adamson if (status) 44089b7b9fccSAndy Adamson goto out; 44099b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44109b7b9fccSAndy Adamson if (status) 44111da177e4SLinus Torvalds goto out; 44121da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44131da177e4SLinus Torvalds goto out; 44141da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 44151da177e4SLinus Torvalds goto out; 44161da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 44171da177e4SLinus Torvalds goto out; 44181da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 44191da177e4SLinus Torvalds out: 44201da177e4SLinus Torvalds return status; 44211da177e4SLinus Torvalds } 44221da177e4SLinus Torvalds 44231da177e4SLinus Torvalds /* 44241da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 44251da177e4SLinus Torvalds */ 44268687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 44271da177e4SLinus Torvalds { 44281da177e4SLinus Torvalds struct xdr_stream xdr; 44291da177e4SLinus Torvalds struct compound_hdr hdr; 44301da177e4SLinus Torvalds int status; 44311da177e4SLinus Torvalds 44321da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44339b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44349b7b9fccSAndy Adamson if (status) 44359b7b9fccSAndy Adamson goto out; 44369b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44379b7b9fccSAndy Adamson if (status) 44381da177e4SLinus Torvalds goto out; 44391da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 44401da177e4SLinus Torvalds goto out; 44411da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 44421da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 44431da177e4SLinus Torvalds out: 44441da177e4SLinus Torvalds return status; 44451da177e4SLinus Torvalds } 44461da177e4SLinus Torvalds 44471da177e4SLinus Torvalds /* 44481da177e4SLinus Torvalds * Decode REMOVE response 44491da177e4SLinus Torvalds */ 44504fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 44511da177e4SLinus Torvalds { 44521da177e4SLinus Torvalds struct xdr_stream xdr; 44531da177e4SLinus Torvalds struct compound_hdr hdr; 44541da177e4SLinus Torvalds int status; 44551da177e4SLinus Torvalds 44561da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44579b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44589b7b9fccSAndy Adamson if (status) 44599b7b9fccSAndy Adamson goto out; 44609b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44619b7b9fccSAndy Adamson if (status) 44621da177e4SLinus Torvalds goto out; 446316e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 446416e42959STrond Myklebust goto out; 446516e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 446616e42959STrond Myklebust goto out; 44674fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 44681da177e4SLinus Torvalds out: 44691da177e4SLinus Torvalds return status; 44701da177e4SLinus Torvalds } 44711da177e4SLinus Torvalds 44721da177e4SLinus Torvalds /* 44731da177e4SLinus Torvalds * Decode RENAME response 44741da177e4SLinus Torvalds */ 44758687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 44761da177e4SLinus Torvalds { 44771da177e4SLinus Torvalds struct xdr_stream xdr; 44781da177e4SLinus Torvalds struct compound_hdr hdr; 44791da177e4SLinus Torvalds int status; 44801da177e4SLinus Torvalds 44811da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44829b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44839b7b9fccSAndy Adamson if (status) 44849b7b9fccSAndy Adamson goto out; 44859b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44869b7b9fccSAndy Adamson if (status) 44871da177e4SLinus Torvalds goto out; 44881da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44891da177e4SLinus Torvalds goto out; 44901da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 44911da177e4SLinus Torvalds goto out; 44921da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44931da177e4SLinus Torvalds goto out; 44946caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 44956caf2c82STrond Myklebust goto out; 44966caf2c82STrond Myklebust /* Current FH is target directory */ 44976caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 44986caf2c82STrond Myklebust goto out; 44996caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 45006caf2c82STrond Myklebust goto out; 45016caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 45021da177e4SLinus Torvalds out: 45031da177e4SLinus Torvalds return status; 45041da177e4SLinus Torvalds } 45051da177e4SLinus Torvalds 45061da177e4SLinus Torvalds /* 45071da177e4SLinus Torvalds * Decode LINK response 45081da177e4SLinus Torvalds */ 45098687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 45101da177e4SLinus Torvalds { 45111da177e4SLinus Torvalds struct xdr_stream xdr; 45121da177e4SLinus Torvalds struct compound_hdr hdr; 45131da177e4SLinus Torvalds int status; 45141da177e4SLinus Torvalds 45151da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45169b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 45179b7b9fccSAndy Adamson if (status) 45189b7b9fccSAndy Adamson goto out; 45199b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45209b7b9fccSAndy Adamson if (status) 45211da177e4SLinus Torvalds goto out; 45221da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45231da177e4SLinus Torvalds goto out; 45241da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 45251da177e4SLinus Torvalds goto out; 45261da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45271da177e4SLinus Torvalds goto out; 452891ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 452991ba2eeeSTrond Myklebust goto out; 453091ba2eeeSTrond Myklebust /* 453191ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 453291ba2eeeSTrond Myklebust * filehandle. 453391ba2eeeSTrond Myklebust */ 453491ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 453591ba2eeeSTrond Myklebust goto out; 453691ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 453791ba2eeeSTrond Myklebust goto out; 453891ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 45391da177e4SLinus Torvalds out: 45401da177e4SLinus Torvalds return status; 45411da177e4SLinus Torvalds } 45421da177e4SLinus Torvalds 45431da177e4SLinus Torvalds /* 45441da177e4SLinus Torvalds * Decode CREATE response 45451da177e4SLinus Torvalds */ 45468687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 45471da177e4SLinus Torvalds { 45481da177e4SLinus Torvalds struct xdr_stream xdr; 45491da177e4SLinus Torvalds struct compound_hdr hdr; 45501da177e4SLinus Torvalds int status; 45511da177e4SLinus Torvalds 45521da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45539b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 45549b7b9fccSAndy Adamson if (status) 45559b7b9fccSAndy Adamson goto out; 45569b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45579b7b9fccSAndy Adamson if (status) 45581da177e4SLinus Torvalds goto out; 45591da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45601da177e4SLinus Torvalds goto out; 456156ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 456256ae19f3STrond Myklebust goto out; 45631da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 45641da177e4SLinus Torvalds goto out; 45651da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 45661da177e4SLinus Torvalds goto out; 456756ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 456856ae19f3STrond Myklebust goto out; 456956ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 457056ae19f3STrond Myklebust goto out; 457156ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 45721da177e4SLinus Torvalds out: 45731da177e4SLinus Torvalds return status; 45741da177e4SLinus Torvalds } 45751da177e4SLinus Torvalds 45761da177e4SLinus Torvalds /* 45771da177e4SLinus Torvalds * Decode SYMLINK response 45781da177e4SLinus Torvalds */ 45798687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 45801da177e4SLinus Torvalds { 45811da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 45821da177e4SLinus Torvalds } 45831da177e4SLinus Torvalds 45841da177e4SLinus Torvalds /* 45851da177e4SLinus Torvalds * Decode GETATTR response 45861da177e4SLinus Torvalds */ 45878687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 45881da177e4SLinus Torvalds { 45891da177e4SLinus Torvalds struct xdr_stream xdr; 45901da177e4SLinus Torvalds struct compound_hdr hdr; 45911da177e4SLinus Torvalds int status; 45921da177e4SLinus Torvalds 45931da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45941da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 45951da177e4SLinus Torvalds if (status) 45961da177e4SLinus Torvalds goto out; 45979b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45989b7b9fccSAndy Adamson if (status) 45999b7b9fccSAndy Adamson goto out; 46001da177e4SLinus Torvalds status = decode_putfh(&xdr); 46011da177e4SLinus Torvalds if (status) 46021da177e4SLinus Torvalds goto out; 46031da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 46041da177e4SLinus Torvalds out: 46051da177e4SLinus Torvalds return status; 46061da177e4SLinus Torvalds } 46071da177e4SLinus Torvalds 460823ec6965SJ. Bruce Fields /* 460923ec6965SJ. Bruce Fields * Encode an SETACL request 461023ec6965SJ. Bruce Fields */ 461123ec6965SJ. Bruce Fields static int 46128687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 461323ec6965SJ. Bruce Fields { 461423ec6965SJ. Bruce Fields struct xdr_stream xdr; 461523ec6965SJ. Bruce Fields struct compound_hdr hdr = { 461666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 461723ec6965SJ. Bruce Fields }; 461823ec6965SJ. Bruce Fields int status; 461923ec6965SJ. Bruce Fields 462023ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 46210c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 46229b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 4623cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 4624d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 4625d017931cSAndy Adamson encode_nops(&hdr); 462623ec6965SJ. Bruce Fields return status; 462723ec6965SJ. Bruce Fields } 462805d564feSAndy Adamson 462923ec6965SJ. Bruce Fields /* 463023ec6965SJ. Bruce Fields * Decode SETACL response 463123ec6965SJ. Bruce Fields */ 463223ec6965SJ. Bruce Fields static int 463373c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 463473c403a9SBenny Halevy struct nfs_setaclres *res) 463523ec6965SJ. Bruce Fields { 463623ec6965SJ. Bruce Fields struct xdr_stream xdr; 463723ec6965SJ. Bruce Fields struct compound_hdr hdr; 463823ec6965SJ. Bruce Fields int status; 463923ec6965SJ. Bruce Fields 464023ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 464123ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 464223ec6965SJ. Bruce Fields if (status) 464323ec6965SJ. Bruce Fields goto out; 46449b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46459b7b9fccSAndy Adamson if (status) 46469b7b9fccSAndy Adamson goto out; 464723ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 464823ec6965SJ. Bruce Fields if (status) 464923ec6965SJ. Bruce Fields goto out; 46509e9ecc03SBenny Halevy status = decode_setattr(&xdr); 465123ec6965SJ. Bruce Fields out: 465223ec6965SJ. Bruce Fields return status; 465323ec6965SJ. Bruce Fields } 46541da177e4SLinus Torvalds 46551da177e4SLinus Torvalds /* 4656029d105eSJ. Bruce Fields * Decode GETACL response 4657029d105eSJ. Bruce Fields */ 4658029d105eSJ. Bruce Fields static int 4659663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 4660663c79b3SBenny Halevy struct nfs_getaclres *res) 4661029d105eSJ. Bruce Fields { 4662029d105eSJ. Bruce Fields struct xdr_stream xdr; 4663029d105eSJ. Bruce Fields struct compound_hdr hdr; 4664029d105eSJ. Bruce Fields int status; 4665029d105eSJ. Bruce Fields 4666029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4667029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4668029d105eSJ. Bruce Fields if (status) 4669029d105eSJ. Bruce Fields goto out; 46709b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46719b7b9fccSAndy Adamson if (status) 46729b7b9fccSAndy Adamson goto out; 4673029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4674029d105eSJ. Bruce Fields if (status) 4675029d105eSJ. Bruce Fields goto out; 4676663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 4677029d105eSJ. Bruce Fields 4678029d105eSJ. Bruce Fields out: 4679029d105eSJ. Bruce Fields return status; 4680029d105eSJ. Bruce Fields } 4681029d105eSJ. Bruce Fields 4682029d105eSJ. Bruce Fields /* 46831da177e4SLinus Torvalds * Decode CLOSE response 46841da177e4SLinus Torvalds */ 46858687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 46861da177e4SLinus Torvalds { 46871da177e4SLinus Torvalds struct xdr_stream xdr; 46881da177e4SLinus Torvalds struct compound_hdr hdr; 46891da177e4SLinus Torvalds int status; 46901da177e4SLinus Torvalds 46911da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46921da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 46931da177e4SLinus Torvalds if (status) 46941da177e4SLinus Torvalds goto out; 46959b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46969b7b9fccSAndy Adamson if (status) 46979b7b9fccSAndy Adamson goto out; 46981da177e4SLinus Torvalds status = decode_putfh(&xdr); 46991da177e4SLinus Torvalds if (status) 47001da177e4SLinus Torvalds goto out; 47011da177e4SLinus Torvalds status = decode_close(&xdr, res); 4702516a6af6STrond Myklebust if (status != 0) 4703516a6af6STrond Myklebust goto out; 4704516a6af6STrond Myklebust /* 4705516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4706516a6af6STrond Myklebust * in which case the getattr call will fail with 4707516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4708516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4709516a6af6STrond Myklebust */ 4710516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 47111da177e4SLinus Torvalds out: 47121da177e4SLinus Torvalds return status; 47131da177e4SLinus Torvalds } 47141da177e4SLinus Torvalds 47151da177e4SLinus Torvalds /* 47161da177e4SLinus Torvalds * Decode OPEN response 47171da177e4SLinus Torvalds */ 47188687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 47191da177e4SLinus Torvalds { 47201da177e4SLinus Torvalds struct xdr_stream xdr; 47211da177e4SLinus Torvalds struct compound_hdr hdr; 47221da177e4SLinus Torvalds int status; 47231da177e4SLinus Torvalds 47241da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47251da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47261da177e4SLinus Torvalds if (status) 47271da177e4SLinus Torvalds goto out; 47289b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47299b7b9fccSAndy Adamson if (status) 47309b7b9fccSAndy Adamson goto out; 47311da177e4SLinus Torvalds status = decode_putfh(&xdr); 47321da177e4SLinus Torvalds if (status) 47331da177e4SLinus Torvalds goto out; 473456ae19f3STrond Myklebust status = decode_savefh(&xdr); 473556ae19f3STrond Myklebust if (status) 473656ae19f3STrond Myklebust goto out; 47371da177e4SLinus Torvalds status = decode_open(&xdr, res); 47381da177e4SLinus Torvalds if (status) 47391da177e4SLinus Torvalds goto out; 47409936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 47411da177e4SLinus Torvalds goto out; 474256ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 474356ae19f3STrond Myklebust goto out; 4744365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 474556ae19f3STrond Myklebust goto out; 474656ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 47471da177e4SLinus Torvalds out: 47481da177e4SLinus Torvalds return status; 47491da177e4SLinus Torvalds } 47501da177e4SLinus Torvalds 47511da177e4SLinus Torvalds /* 47521da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 47531da177e4SLinus Torvalds */ 47548687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 47551da177e4SLinus Torvalds { 47561da177e4SLinus Torvalds struct xdr_stream xdr; 47571da177e4SLinus Torvalds struct compound_hdr hdr; 47581da177e4SLinus Torvalds int status; 47591da177e4SLinus Torvalds 47601da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47611da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47621da177e4SLinus Torvalds if (status) 47631da177e4SLinus Torvalds goto out; 47641da177e4SLinus Torvalds status = decode_putfh(&xdr); 47651da177e4SLinus Torvalds if (status) 47661da177e4SLinus Torvalds goto out; 47671da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 47681da177e4SLinus Torvalds out: 47691da177e4SLinus Torvalds return status; 47701da177e4SLinus Torvalds } 47711da177e4SLinus Torvalds 47721da177e4SLinus Torvalds /* 47731da177e4SLinus Torvalds * Decode OPEN response 47741da177e4SLinus Torvalds */ 47758687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 47761da177e4SLinus Torvalds { 47771da177e4SLinus Torvalds struct xdr_stream xdr; 47781da177e4SLinus Torvalds struct compound_hdr hdr; 47791da177e4SLinus Torvalds int status; 47801da177e4SLinus Torvalds 47811da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47821da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47831da177e4SLinus Torvalds if (status) 47841da177e4SLinus Torvalds goto out; 47859b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47869b7b9fccSAndy Adamson if (status) 47879b7b9fccSAndy Adamson goto out; 47881da177e4SLinus Torvalds status = decode_putfh(&xdr); 47891da177e4SLinus Torvalds if (status) 47901da177e4SLinus Torvalds goto out; 47911da177e4SLinus Torvalds status = decode_open(&xdr, res); 4792864472e9STrond Myklebust if (status) 4793864472e9STrond Myklebust goto out; 4794864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 47951da177e4SLinus Torvalds out: 47961da177e4SLinus Torvalds return status; 47971da177e4SLinus Torvalds } 47981da177e4SLinus Torvalds 47991da177e4SLinus Torvalds /* 48001da177e4SLinus Torvalds * Decode SETATTR response 48011da177e4SLinus Torvalds */ 48028687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 48031da177e4SLinus Torvalds { 48041da177e4SLinus Torvalds struct xdr_stream xdr; 48051da177e4SLinus Torvalds struct compound_hdr hdr; 48061da177e4SLinus Torvalds int status; 48071da177e4SLinus Torvalds 48081da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48091da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48101da177e4SLinus Torvalds if (status) 48111da177e4SLinus Torvalds goto out; 48129b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48139b7b9fccSAndy Adamson if (status) 48149b7b9fccSAndy Adamson goto out; 48151da177e4SLinus Torvalds status = decode_putfh(&xdr); 48161da177e4SLinus Torvalds if (status) 48171da177e4SLinus Torvalds goto out; 48189e9ecc03SBenny Halevy status = decode_setattr(&xdr); 48191da177e4SLinus Torvalds if (status) 48201da177e4SLinus Torvalds goto out; 482178f945f8STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 48221da177e4SLinus Torvalds out: 48231da177e4SLinus Torvalds return status; 48241da177e4SLinus Torvalds } 48251da177e4SLinus Torvalds 48261da177e4SLinus Torvalds /* 48271da177e4SLinus Torvalds * Decode LOCK response 48281da177e4SLinus Torvalds */ 48298687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 48301da177e4SLinus Torvalds { 48311da177e4SLinus Torvalds struct xdr_stream xdr; 48321da177e4SLinus Torvalds struct compound_hdr hdr; 48331da177e4SLinus Torvalds int status; 48341da177e4SLinus Torvalds 48351da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48361da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48371da177e4SLinus Torvalds if (status) 48381da177e4SLinus Torvalds goto out; 48399b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48409b7b9fccSAndy Adamson if (status) 48419b7b9fccSAndy Adamson goto out; 48421da177e4SLinus Torvalds status = decode_putfh(&xdr); 48431da177e4SLinus Torvalds if (status) 48441da177e4SLinus Torvalds goto out; 48451da177e4SLinus Torvalds status = decode_lock(&xdr, res); 48461da177e4SLinus Torvalds out: 48471da177e4SLinus Torvalds return status; 48481da177e4SLinus Torvalds } 48491da177e4SLinus Torvalds 48501da177e4SLinus Torvalds /* 48511da177e4SLinus Torvalds * Decode LOCKT response 48521da177e4SLinus Torvalds */ 48538687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 48541da177e4SLinus Torvalds { 48551da177e4SLinus Torvalds struct xdr_stream xdr; 48561da177e4SLinus Torvalds struct compound_hdr hdr; 48571da177e4SLinus Torvalds int status; 48581da177e4SLinus Torvalds 48591da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48601da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48611da177e4SLinus Torvalds if (status) 48621da177e4SLinus Torvalds goto out; 48639b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48649b7b9fccSAndy Adamson if (status) 48659b7b9fccSAndy Adamson goto out; 48661da177e4SLinus Torvalds status = decode_putfh(&xdr); 48671da177e4SLinus Torvalds if (status) 48681da177e4SLinus Torvalds goto out; 48691da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 48701da177e4SLinus Torvalds out: 48711da177e4SLinus Torvalds return status; 48721da177e4SLinus Torvalds } 48731da177e4SLinus Torvalds 48741da177e4SLinus Torvalds /* 48751da177e4SLinus Torvalds * Decode LOCKU response 48761da177e4SLinus Torvalds */ 48778687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 48781da177e4SLinus Torvalds { 48791da177e4SLinus Torvalds struct xdr_stream xdr; 48801da177e4SLinus Torvalds struct compound_hdr hdr; 48811da177e4SLinus Torvalds int status; 48821da177e4SLinus Torvalds 48831da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48841da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48851da177e4SLinus Torvalds if (status) 48861da177e4SLinus Torvalds goto out; 48879b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48889b7b9fccSAndy Adamson if (status) 48899b7b9fccSAndy Adamson goto out; 48901da177e4SLinus Torvalds status = decode_putfh(&xdr); 48911da177e4SLinus Torvalds if (status) 48921da177e4SLinus Torvalds goto out; 48931da177e4SLinus Torvalds status = decode_locku(&xdr, res); 48941da177e4SLinus Torvalds out: 48951da177e4SLinus Torvalds return status; 48961da177e4SLinus Torvalds } 48971da177e4SLinus Torvalds 48981da177e4SLinus Torvalds /* 48991da177e4SLinus Torvalds * Decode READLINK response 49001da177e4SLinus Torvalds */ 4901f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 4902f50c7000SBenny Halevy struct nfs4_readlink_res *res) 49031da177e4SLinus Torvalds { 49041da177e4SLinus Torvalds struct xdr_stream xdr; 49051da177e4SLinus Torvalds struct compound_hdr hdr; 49061da177e4SLinus Torvalds int status; 49071da177e4SLinus Torvalds 49081da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49091da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49101da177e4SLinus Torvalds if (status) 49111da177e4SLinus Torvalds goto out; 49129b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49139b7b9fccSAndy Adamson if (status) 49149b7b9fccSAndy Adamson goto out; 49151da177e4SLinus Torvalds status = decode_putfh(&xdr); 49161da177e4SLinus Torvalds if (status) 49171da177e4SLinus Torvalds goto out; 49181da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 49191da177e4SLinus Torvalds out: 49201da177e4SLinus Torvalds return status; 49211da177e4SLinus Torvalds } 49221da177e4SLinus Torvalds 49231da177e4SLinus Torvalds /* 49241da177e4SLinus Torvalds * Decode READDIR response 49251da177e4SLinus Torvalds */ 49268687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 49271da177e4SLinus Torvalds { 49281da177e4SLinus Torvalds struct xdr_stream xdr; 49291da177e4SLinus Torvalds struct compound_hdr hdr; 49301da177e4SLinus Torvalds int status; 49311da177e4SLinus Torvalds 49321da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49331da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49341da177e4SLinus Torvalds if (status) 49351da177e4SLinus Torvalds goto out; 49369b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49379b7b9fccSAndy Adamson if (status) 49389b7b9fccSAndy Adamson goto out; 49391da177e4SLinus Torvalds status = decode_putfh(&xdr); 49401da177e4SLinus Torvalds if (status) 49411da177e4SLinus Torvalds goto out; 49421da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 49431da177e4SLinus Torvalds out: 49441da177e4SLinus Torvalds return status; 49451da177e4SLinus Torvalds } 49461da177e4SLinus Torvalds 49471da177e4SLinus Torvalds /* 49481da177e4SLinus Torvalds * Decode Read response 49491da177e4SLinus Torvalds */ 49508687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 49511da177e4SLinus Torvalds { 49521da177e4SLinus Torvalds struct xdr_stream xdr; 49531da177e4SLinus Torvalds struct compound_hdr hdr; 49541da177e4SLinus Torvalds int status; 49551da177e4SLinus Torvalds 49561da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49571da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49581da177e4SLinus Torvalds if (status) 49591da177e4SLinus Torvalds goto out; 49609b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49619b7b9fccSAndy Adamson if (status) 49629b7b9fccSAndy Adamson goto out; 49631da177e4SLinus Torvalds status = decode_putfh(&xdr); 49641da177e4SLinus Torvalds if (status) 49651da177e4SLinus Torvalds goto out; 49661da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 49671da177e4SLinus Torvalds if (!status) 49681da177e4SLinus Torvalds status = res->count; 49691da177e4SLinus Torvalds out: 49701da177e4SLinus Torvalds return status; 49711da177e4SLinus Torvalds } 49721da177e4SLinus Torvalds 49731da177e4SLinus Torvalds /* 49741da177e4SLinus Torvalds * Decode WRITE response 49751da177e4SLinus Torvalds */ 49768687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 49771da177e4SLinus Torvalds { 49781da177e4SLinus Torvalds struct xdr_stream xdr; 49791da177e4SLinus Torvalds struct compound_hdr hdr; 49801da177e4SLinus Torvalds int status; 49811da177e4SLinus Torvalds 49821da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49831da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49841da177e4SLinus Torvalds if (status) 49851da177e4SLinus Torvalds goto out; 49869b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49879b7b9fccSAndy Adamson if (status) 49889b7b9fccSAndy Adamson goto out; 49891da177e4SLinus Torvalds status = decode_putfh(&xdr); 49901da177e4SLinus Torvalds if (status) 49911da177e4SLinus Torvalds goto out; 49921da177e4SLinus Torvalds status = decode_write(&xdr, res); 49934f9838c7STrond Myklebust if (status) 49944f9838c7STrond Myklebust goto out; 49954f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 49961da177e4SLinus Torvalds if (!status) 49971da177e4SLinus Torvalds status = res->count; 49981da177e4SLinus Torvalds out: 49991da177e4SLinus Torvalds return status; 50001da177e4SLinus Torvalds } 50011da177e4SLinus Torvalds 50021da177e4SLinus Torvalds /* 50031da177e4SLinus Torvalds * Decode COMMIT response 50041da177e4SLinus Torvalds */ 50058687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 50061da177e4SLinus Torvalds { 50071da177e4SLinus Torvalds struct xdr_stream xdr; 50081da177e4SLinus Torvalds struct compound_hdr hdr; 50091da177e4SLinus Torvalds int status; 50101da177e4SLinus Torvalds 50111da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50121da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50131da177e4SLinus Torvalds if (status) 50141da177e4SLinus Torvalds goto out; 50159b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50169b7b9fccSAndy Adamson if (status) 50179b7b9fccSAndy Adamson goto out; 50181da177e4SLinus Torvalds status = decode_putfh(&xdr); 50191da177e4SLinus Torvalds if (status) 50201da177e4SLinus Torvalds goto out; 50211da177e4SLinus Torvalds status = decode_commit(&xdr, res); 50224f9838c7STrond Myklebust if (status) 50234f9838c7STrond Myklebust goto out; 50244f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 50251da177e4SLinus Torvalds out: 50261da177e4SLinus Torvalds return status; 50271da177e4SLinus Torvalds } 50281da177e4SLinus Torvalds 50291da177e4SLinus Torvalds /* 50301da177e4SLinus Torvalds * FSINFO request 50311da177e4SLinus Torvalds */ 50323dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 50333dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 50341da177e4SLinus Torvalds { 50351da177e4SLinus Torvalds struct xdr_stream xdr; 50361da177e4SLinus Torvalds struct compound_hdr hdr; 50371da177e4SLinus Torvalds int status; 50381da177e4SLinus Torvalds 50391da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50401da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50411da177e4SLinus Torvalds if (!status) 50429b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50439b7b9fccSAndy Adamson if (!status) 50441da177e4SLinus Torvalds status = decode_putfh(&xdr); 50451da177e4SLinus Torvalds if (!status) 50463dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 50471da177e4SLinus Torvalds return status; 50481da177e4SLinus Torvalds } 50491da177e4SLinus Torvalds 50501da177e4SLinus Torvalds /* 50511da177e4SLinus Torvalds * PATHCONF request 50521da177e4SLinus Torvalds */ 5053d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5054d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 50551da177e4SLinus Torvalds { 50561da177e4SLinus Torvalds struct xdr_stream xdr; 50571da177e4SLinus Torvalds struct compound_hdr hdr; 50581da177e4SLinus Torvalds int status; 50591da177e4SLinus Torvalds 50601da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50611da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50621da177e4SLinus Torvalds if (!status) 50639b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50649b7b9fccSAndy Adamson if (!status) 50651da177e4SLinus Torvalds status = decode_putfh(&xdr); 50661da177e4SLinus Torvalds if (!status) 5067d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 50681da177e4SLinus Torvalds return status; 50691da177e4SLinus Torvalds } 50701da177e4SLinus Torvalds 50711da177e4SLinus Torvalds /* 50721da177e4SLinus Torvalds * STATFS request 50731da177e4SLinus Torvalds */ 507424ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 507524ad148aSBenny Halevy struct nfs4_statfs_res *res) 50761da177e4SLinus Torvalds { 50771da177e4SLinus Torvalds struct xdr_stream xdr; 50781da177e4SLinus Torvalds struct compound_hdr hdr; 50791da177e4SLinus Torvalds int status; 50801da177e4SLinus Torvalds 50811da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50821da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50831da177e4SLinus Torvalds if (!status) 50849b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50859b7b9fccSAndy Adamson if (!status) 50861da177e4SLinus Torvalds status = decode_putfh(&xdr); 50871da177e4SLinus Torvalds if (!status) 508824ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 50891da177e4SLinus Torvalds return status; 50901da177e4SLinus Torvalds } 50911da177e4SLinus Torvalds 50921da177e4SLinus Torvalds /* 50931da177e4SLinus Torvalds * GETATTR_BITMAP request 50941da177e4SLinus Torvalds */ 50958687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 50961da177e4SLinus Torvalds { 50971da177e4SLinus Torvalds struct xdr_stream xdr; 50981da177e4SLinus Torvalds struct compound_hdr hdr; 50991da177e4SLinus Torvalds int status; 51001da177e4SLinus Torvalds 51011da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51029b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 51039b7b9fccSAndy Adamson if (status) 51049b7b9fccSAndy Adamson goto out; 51059b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 51069b7b9fccSAndy Adamson if (status) 51071da177e4SLinus Torvalds goto out; 51081da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 51091da177e4SLinus Torvalds goto out; 51101da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 51111da177e4SLinus Torvalds out: 51121da177e4SLinus Torvalds return status; 51131da177e4SLinus Torvalds } 51141da177e4SLinus Torvalds 51151da177e4SLinus Torvalds /* 51161da177e4SLinus Torvalds * Decode RENEW response 51171da177e4SLinus Torvalds */ 51188687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 51191da177e4SLinus Torvalds { 51201da177e4SLinus Torvalds struct xdr_stream xdr; 51211da177e4SLinus Torvalds struct compound_hdr hdr; 51221da177e4SLinus Torvalds int status; 51231da177e4SLinus Torvalds 51241da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51251da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51261da177e4SLinus Torvalds if (!status) 51271da177e4SLinus Torvalds status = decode_renew(&xdr); 51281da177e4SLinus Torvalds return status; 51291da177e4SLinus Torvalds } 51301da177e4SLinus Torvalds 51311da177e4SLinus Torvalds /* 51321da177e4SLinus Torvalds * a SETCLIENTID request 51331da177e4SLinus Torvalds */ 51348687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5135adfa6f98SDavid Howells struct nfs_client *clp) 51361da177e4SLinus Torvalds { 51371da177e4SLinus Torvalds struct xdr_stream xdr; 51381da177e4SLinus Torvalds struct compound_hdr hdr; 51391da177e4SLinus Torvalds int status; 51401da177e4SLinus Torvalds 51411da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51421da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51431da177e4SLinus Torvalds if (!status) 51441da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 51451da177e4SLinus Torvalds return status; 51461da177e4SLinus Torvalds } 51471da177e4SLinus Torvalds 51481da177e4SLinus Torvalds /* 51491da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 51501da177e4SLinus Torvalds */ 51518687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 51521da177e4SLinus Torvalds { 51531da177e4SLinus Torvalds struct xdr_stream xdr; 51541da177e4SLinus Torvalds struct compound_hdr hdr; 51551da177e4SLinus Torvalds int status; 51561da177e4SLinus Torvalds 51571da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51581da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51591da177e4SLinus Torvalds if (!status) 51601da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 51611da177e4SLinus Torvalds if (!status) 51621da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 51631da177e4SLinus Torvalds if (!status) 51641da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 51651da177e4SLinus Torvalds return status; 51661da177e4SLinus Torvalds } 51671da177e4SLinus Torvalds 51681da177e4SLinus Torvalds /* 51691da177e4SLinus Torvalds * DELEGRETURN request 51701da177e4SLinus Torvalds */ 51718687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 51721da177e4SLinus Torvalds { 51731da177e4SLinus Torvalds struct xdr_stream xdr; 51741da177e4SLinus Torvalds struct compound_hdr hdr; 51751da177e4SLinus Torvalds int status; 51761da177e4SLinus Torvalds 51771da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51781da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51799b7b9fccSAndy Adamson if (status) 51809b7b9fccSAndy Adamson goto out; 51819b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51829b7b9fccSAndy Adamson if (status) 5183fa178f29STrond Myklebust goto out; 51841da177e4SLinus Torvalds status = decode_putfh(&xdr); 5185fa178f29STrond Myklebust if (status != 0) 5186fa178f29STrond Myklebust goto out; 51871da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5188fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 5189fa178f29STrond Myklebust out: 51901da177e4SLinus Torvalds return status; 51911da177e4SLinus Torvalds } 51921da177e4SLinus Torvalds 5193683b57b4STrond Myklebust /* 5194683b57b4STrond Myklebust * FS_LOCATIONS request 5195683b57b4STrond Myklebust */ 519622958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 519722958463SBenny Halevy struct nfs4_fs_locations_res *res) 5198683b57b4STrond Myklebust { 5199683b57b4STrond Myklebust struct xdr_stream xdr; 5200683b57b4STrond Myklebust struct compound_hdr hdr; 5201683b57b4STrond Myklebust int status; 5202683b57b4STrond Myklebust 5203683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5204683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 52059b7b9fccSAndy Adamson if (status) 52069b7b9fccSAndy Adamson goto out; 52079b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 52089b7b9fccSAndy Adamson if (status) 5209683b57b4STrond Myklebust goto out; 5210683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5211683b57b4STrond Myklebust goto out; 5212683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5213683b57b4STrond Myklebust goto out; 5214683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 521522958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 521622958463SBenny Halevy res->fs_locations->server); 5217683b57b4STrond Myklebust out: 5218683b57b4STrond Myklebust return status; 5219683b57b4STrond Myklebust } 5220683b57b4STrond Myklebust 522199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 522299fe60d0SBenny Halevy /* 522399fe60d0SBenny Halevy * EXCHANGE_ID request 522499fe60d0SBenny Halevy */ 522599fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 522699fe60d0SBenny Halevy void *res) 522799fe60d0SBenny Halevy { 522899fe60d0SBenny Halevy struct xdr_stream xdr; 522999fe60d0SBenny Halevy struct compound_hdr hdr; 523099fe60d0SBenny Halevy int status; 523199fe60d0SBenny Halevy 523299fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 523399fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 523499fe60d0SBenny Halevy if (!status) 523599fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 523699fe60d0SBenny Halevy return status; 523799fe60d0SBenny Halevy } 52382050f0ccSAndy Adamson 52392050f0ccSAndy Adamson /* 5240fc931582SAndy Adamson * a CREATE_SESSION request 5241fc931582SAndy Adamson */ 5242fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5243fc931582SAndy Adamson struct nfs41_create_session_res *res) 5244fc931582SAndy Adamson { 5245fc931582SAndy Adamson struct xdr_stream xdr; 5246fc931582SAndy Adamson struct compound_hdr hdr; 5247fc931582SAndy Adamson int status; 5248fc931582SAndy Adamson 5249fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5250fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5251fc931582SAndy Adamson if (!status) 5252fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5253fc931582SAndy Adamson return status; 5254fc931582SAndy Adamson } 5255fc931582SAndy Adamson 5256fc931582SAndy Adamson /* 52570f3e66c6SAndy Adamson * a DESTROY_SESSION request 52580f3e66c6SAndy Adamson */ 52590f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 52600f3e66c6SAndy Adamson void *dummy) 52610f3e66c6SAndy Adamson { 52620f3e66c6SAndy Adamson struct xdr_stream xdr; 52630f3e66c6SAndy Adamson struct compound_hdr hdr; 52640f3e66c6SAndy Adamson int status; 52650f3e66c6SAndy Adamson 52660f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52670f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 52680f3e66c6SAndy Adamson if (!status) 52690f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 52700f3e66c6SAndy Adamson return status; 52710f3e66c6SAndy Adamson } 52720f3e66c6SAndy Adamson 52730f3e66c6SAndy Adamson /* 5274fc01cea9SAndy Adamson * a SEQUENCE request 5275fc01cea9SAndy Adamson */ 5276fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 5277fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5278fc01cea9SAndy Adamson { 5279fc01cea9SAndy Adamson struct xdr_stream xdr; 5280fc01cea9SAndy Adamson struct compound_hdr hdr; 5281fc01cea9SAndy Adamson int status; 5282fc01cea9SAndy Adamson 5283fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5284fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5285fc01cea9SAndy Adamson if (!status) 5286fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 5287fc01cea9SAndy Adamson return status; 5288fc01cea9SAndy Adamson } 5289fc01cea9SAndy Adamson 5290fc01cea9SAndy Adamson /* 52912050f0ccSAndy Adamson * a GET_LEASE_TIME request 52922050f0ccSAndy Adamson */ 52932050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 52942050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 52952050f0ccSAndy Adamson { 52962050f0ccSAndy Adamson struct xdr_stream xdr; 52972050f0ccSAndy Adamson struct compound_hdr hdr; 52982050f0ccSAndy Adamson int status; 52992050f0ccSAndy Adamson 53002050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53012050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 53022050f0ccSAndy Adamson if (!status) 53032050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 53042050f0ccSAndy Adamson if (!status) 53052050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 53062050f0ccSAndy Adamson if (!status) 53072050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 53082050f0ccSAndy Adamson return status; 53092050f0ccSAndy Adamson } 531099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 531199fe60d0SBenny Halevy 53120dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 53131da177e4SLinus Torvalds { 53141da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 53151da177e4SLinus Torvalds uint32_t len; 53161da177e4SLinus Torvalds 53171da177e4SLinus Torvalds if (!*p++) { 53181da177e4SLinus Torvalds if (!*p) 53191da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 53201da177e4SLinus Torvalds entry->eof = 1; 53211da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 53221da177e4SLinus Torvalds } 53231da177e4SLinus Torvalds 53241da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 53251da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 53261da177e4SLinus Torvalds entry->len = ntohl(*p++); 53271da177e4SLinus Torvalds entry->name = (const char *) p; 53281da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 53291da177e4SLinus Torvalds 53301da177e4SLinus Torvalds /* 53311da177e4SLinus Torvalds * In case the server doesn't return an inode number, 53321da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 53331da177e4SLinus Torvalds * since glibc seems to choke on it...) 53341da177e4SLinus Torvalds */ 53351da177e4SLinus Torvalds entry->ino = 1; 53361da177e4SLinus Torvalds 53371da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 53381da177e4SLinus Torvalds if (len-- > 0) { 53391da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 53401da177e4SLinus Torvalds if (len-- > 0) { 53411da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 53421da177e4SLinus Torvalds p += len; 53431da177e4SLinus Torvalds } 53441da177e4SLinus Torvalds } 53451da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 53461da177e4SLinus Torvalds if (len > 0) { 534797d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 534897d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 534997d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 535097d312d0SManoj Naik p++; 535197d312d0SManoj Naik len--; 535297d312d0SManoj Naik } 53531da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 53541da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 53551da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 53561da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 53571da177e4SLinus Torvalds p += len; 53581da177e4SLinus Torvalds } 53591da177e4SLinus Torvalds 53601da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 53611da177e4SLinus Torvalds return p; 53621da177e4SLinus Torvalds } 53631da177e4SLinus Torvalds 53641da177e4SLinus Torvalds /* 53651da177e4SLinus Torvalds * We need to translate between nfs status return values and 53661da177e4SLinus Torvalds * the local errno values which may not be the same. 53671da177e4SLinus Torvalds */ 53681da177e4SLinus Torvalds static struct { 53691da177e4SLinus Torvalds int stat; 53701da177e4SLinus Torvalds int errno; 53711da177e4SLinus Torvalds } nfs_errtbl[] = { 53721da177e4SLinus Torvalds { NFS4_OK, 0 }, 5373856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5374856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5375856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5376856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5377856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5378856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5379856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5380856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5381856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5382856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5383856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5384856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5385856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5386856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5387856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5388856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5389856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5390856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5391856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5392856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5393856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5394856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5395856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5396856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5397856dff3dSBenny Halevy { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, 5398856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5399856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5400856dff3dSBenny Halevy { NFS4ERR_RESOURCE, -EREMOTEIO }, 5401856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5402856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5403856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5404856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 54051da177e4SLinus Torvalds * to be handled by a 54061da177e4SLinus Torvalds * middle-layer. 54071da177e4SLinus Torvalds */ 5408856dff3dSBenny Halevy { -1, -EIO } 54091da177e4SLinus Torvalds }; 54101da177e4SLinus Torvalds 54111da177e4SLinus Torvalds /* 54121da177e4SLinus Torvalds * Convert an NFS error code to a local one. 54131da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 54141da177e4SLinus Torvalds */ 54151da177e4SLinus Torvalds static int 54160a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 54171da177e4SLinus Torvalds { 54181da177e4SLinus Torvalds int i; 54191da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 54201da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 54211da177e4SLinus Torvalds return nfs_errtbl[i].errno; 54221da177e4SLinus Torvalds } 54231da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 54241da177e4SLinus Torvalds /* The server is looney tunes. */ 5425856dff3dSBenny Halevy return -ESERVERFAULT; 54261da177e4SLinus Torvalds } 54271da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 54281da177e4SLinus Torvalds * handle it. 54291da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 54301da177e4SLinus Torvalds * not conflict with native Linux error codes. 54311da177e4SLinus Torvalds */ 5432856dff3dSBenny Halevy return -stat; 54331da177e4SLinus Torvalds } 54341da177e4SLinus Torvalds 54351da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 54361da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 54371da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 54381da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 54391da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 54402bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 54412bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5442cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5443cc0175c1SChuck Lever .p_name = #proc, \ 54441da177e4SLinus Torvalds } 54451da177e4SLinus Torvalds 54461da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 54471da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 54481da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 54491da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 54501da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 54511da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 54521da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 54531da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 54541da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 54551da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 54561da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 54571da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 54581da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 54591da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 54601da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 54611da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 54621da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 54631da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 54641da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 54651da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 54661da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 54671da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 54681da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 54691da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 54701da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 54711da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 54721da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 54731da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 54741da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 54751da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 54761da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 54771da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5478029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 547923ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5480683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 548199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 548299fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5483fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 54840f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 5485fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 54862050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 548799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 54881da177e4SLinus Torvalds }; 54891da177e4SLinus Torvalds 54901da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 54911da177e4SLinus Torvalds .number = 4, 5492e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 54931da177e4SLinus Torvalds .procs = nfs4_procedures 54941da177e4SLinus Torvalds }; 54951da177e4SLinus Torvalds 54961da177e4SLinus Torvalds /* 54971da177e4SLinus Torvalds * Local variables: 54981da177e4SLinus Torvalds * c-basic-offset: 8 54991da177e4SLinus Torvalds * End: 55001da177e4SLinus Torvalds */ 5501