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) 2999b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 /* stub */ 3009b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 /* stub */ 3019b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3029b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3039b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3049b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3059b7b9fccSAndy Adamson 3061da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3071da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3081da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3099b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3101da177e4SLinus Torvalds encode_putfh_maxsz + \ 3119104a55dSTrond Myklebust encode_read_maxsz) 3121da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3141da177e4SLinus Torvalds decode_putfh_maxsz + \ 3159104a55dSTrond Myklebust decode_read_maxsz) 3161da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3179b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3181da177e4SLinus Torvalds encode_putfh_maxsz + \ 3199104a55dSTrond Myklebust encode_readlink_maxsz) 3201da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3219b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3221da177e4SLinus Torvalds decode_putfh_maxsz + \ 3239104a55dSTrond Myklebust decode_readlink_maxsz) 3241da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3259b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3261da177e4SLinus Torvalds encode_putfh_maxsz + \ 3279104a55dSTrond Myklebust encode_readdir_maxsz) 3281da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3299b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3301da177e4SLinus Torvalds decode_putfh_maxsz + \ 3319104a55dSTrond Myklebust decode_readdir_maxsz) 3321da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3341da177e4SLinus Torvalds encode_putfh_maxsz + \ 3359104a55dSTrond Myklebust encode_write_maxsz + \ 3364f9838c7STrond Myklebust encode_getattr_maxsz) 3371da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3389b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3391da177e4SLinus Torvalds decode_putfh_maxsz + \ 3409104a55dSTrond Myklebust decode_write_maxsz + \ 3414f9838c7STrond Myklebust decode_getattr_maxsz) 3421da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3441da177e4SLinus Torvalds encode_putfh_maxsz + \ 3459104a55dSTrond Myklebust encode_commit_maxsz + \ 3464f9838c7STrond Myklebust encode_getattr_maxsz) 3471da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3491da177e4SLinus Torvalds decode_putfh_maxsz + \ 3509104a55dSTrond Myklebust decode_commit_maxsz + \ 3514f9838c7STrond Myklebust decode_getattr_maxsz) 3521da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3539b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3541da177e4SLinus Torvalds encode_putfh_maxsz + \ 3552cebf828STrond Myklebust encode_savefh_maxsz + \ 3562cebf828STrond Myklebust encode_open_maxsz + \ 3572cebf828STrond Myklebust encode_getfh_maxsz + \ 3581da177e4SLinus Torvalds encode_getattr_maxsz + \ 3592cebf828STrond Myklebust encode_restorefh_maxsz + \ 3602cebf828STrond Myklebust encode_getattr_maxsz) 3611da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 3629b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3631da177e4SLinus Torvalds decode_putfh_maxsz + \ 3642cebf828STrond Myklebust decode_savefh_maxsz + \ 3652cebf828STrond Myklebust decode_open_maxsz + \ 3662cebf828STrond Myklebust decode_getfh_maxsz + \ 3671da177e4SLinus Torvalds decode_getattr_maxsz + \ 3682cebf828STrond Myklebust decode_restorefh_maxsz + \ 3692cebf828STrond Myklebust decode_getattr_maxsz) 3701da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3711da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3721da177e4SLinus Torvalds encode_putfh_maxsz + \ 3739104a55dSTrond Myklebust encode_open_confirm_maxsz) 3749104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3759104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3761da177e4SLinus Torvalds decode_putfh_maxsz + \ 3779104a55dSTrond Myklebust decode_open_confirm_maxsz) 3781da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3799b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3801da177e4SLinus Torvalds encode_putfh_maxsz + \ 3812cebf828STrond Myklebust encode_open_maxsz + \ 3822cebf828STrond Myklebust encode_getattr_maxsz) 3831da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3849b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3851da177e4SLinus Torvalds decode_putfh_maxsz + \ 3862cebf828STrond Myklebust decode_open_maxsz + \ 3872cebf828STrond Myklebust decode_getattr_maxsz) 3881da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3891da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3909b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3911da177e4SLinus Torvalds encode_putfh_maxsz + \ 3929104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 393516a6af6STrond Myklebust encode_getattr_maxsz) 3941da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 3951da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3969b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3971da177e4SLinus Torvalds decode_putfh_maxsz + \ 3989104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 399516a6af6STrond Myklebust decode_getattr_maxsz) 4001da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4021da177e4SLinus Torvalds encode_putfh_maxsz + \ 4039104a55dSTrond Myklebust encode_close_maxsz + \ 404516a6af6STrond Myklebust encode_getattr_maxsz) 4051da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4069b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4071da177e4SLinus Torvalds decode_putfh_maxsz + \ 4089104a55dSTrond Myklebust decode_close_maxsz + \ 409516a6af6STrond Myklebust decode_getattr_maxsz) 4101da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4121da177e4SLinus Torvalds encode_putfh_maxsz + \ 4139104a55dSTrond Myklebust encode_setattr_maxsz + \ 4141da177e4SLinus Torvalds encode_getattr_maxsz) 4151da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4169b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4171da177e4SLinus Torvalds decode_putfh_maxsz + \ 4189104a55dSTrond Myklebust decode_setattr_maxsz + \ 4199104a55dSTrond Myklebust decode_getattr_maxsz) 4201da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4221da177e4SLinus Torvalds encode_putfh_maxsz + \ 4231da177e4SLinus Torvalds encode_fsinfo_maxsz) 4241da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4261da177e4SLinus Torvalds decode_putfh_maxsz + \ 4271da177e4SLinus Torvalds decode_fsinfo_maxsz) 4281da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4291da177e4SLinus Torvalds encode_renew_maxsz) 4301da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4311da177e4SLinus Torvalds decode_renew_maxsz) 4321da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4331da177e4SLinus Torvalds encode_setclientid_maxsz) 4341da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4351da177e4SLinus Torvalds decode_setclientid_maxsz) 4361da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4371da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4381da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4391da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4401da177e4SLinus Torvalds encode_fsinfo_maxsz) 4411da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4421da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4431da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4441da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4451da177e4SLinus Torvalds decode_fsinfo_maxsz) 4461da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4479b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4481da177e4SLinus Torvalds encode_putfh_maxsz + \ 4499104a55dSTrond Myklebust encode_lock_maxsz) 4501da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4519b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4521da177e4SLinus Torvalds decode_putfh_maxsz + \ 4539104a55dSTrond Myklebust decode_lock_maxsz) 4541da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4561da177e4SLinus Torvalds encode_putfh_maxsz + \ 4579104a55dSTrond Myklebust encode_lockt_maxsz) 4589104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 4599b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4609104a55dSTrond Myklebust decode_putfh_maxsz + \ 4619104a55dSTrond Myklebust decode_lockt_maxsz) 4621da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 4639b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4641da177e4SLinus Torvalds encode_putfh_maxsz + \ 4659104a55dSTrond Myklebust encode_locku_maxsz) 4661da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 4679b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4681da177e4SLinus Torvalds decode_putfh_maxsz + \ 4699104a55dSTrond Myklebust decode_locku_maxsz) 4701da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 4719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4721da177e4SLinus Torvalds encode_putfh_maxsz + \ 47376b32999STrond Myklebust encode_access_maxsz + \ 47476b32999STrond Myklebust encode_getattr_maxsz) 4751da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 4769b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4771da177e4SLinus Torvalds decode_putfh_maxsz + \ 47876b32999STrond Myklebust decode_access_maxsz + \ 47976b32999STrond Myklebust decode_getattr_maxsz) 4801da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 4819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4821da177e4SLinus Torvalds encode_putfh_maxsz + \ 4831da177e4SLinus Torvalds encode_getattr_maxsz) 4841da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 4859b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4861da177e4SLinus Torvalds decode_putfh_maxsz + \ 4871da177e4SLinus Torvalds decode_getattr_maxsz) 4881da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 4899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4901da177e4SLinus Torvalds encode_putfh_maxsz + \ 4911da177e4SLinus Torvalds encode_lookup_maxsz + \ 4921da177e4SLinus Torvalds encode_getattr_maxsz + \ 4931da177e4SLinus Torvalds encode_getfh_maxsz) 4941da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 4959b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4961da177e4SLinus Torvalds decode_putfh_maxsz + \ 497e6889620STrond Myklebust decode_lookup_maxsz + \ 4981da177e4SLinus Torvalds decode_getattr_maxsz + \ 4991da177e4SLinus Torvalds decode_getfh_maxsz) 5001da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5021da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5031da177e4SLinus Torvalds encode_getattr_maxsz + \ 5041da177e4SLinus Torvalds encode_getfh_maxsz) 5051da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5069b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5071da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5081da177e4SLinus Torvalds decode_getattr_maxsz + \ 5091da177e4SLinus Torvalds decode_getfh_maxsz) 5101da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5121da177e4SLinus Torvalds encode_putfh_maxsz + \ 51316e42959STrond Myklebust encode_remove_maxsz + \ 51416e42959STrond Myklebust encode_getattr_maxsz) 5151da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5169b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5171da177e4SLinus Torvalds decode_putfh_maxsz + \ 5186ce18391SBenny Halevy decode_remove_maxsz + \ 51916e42959STrond Myklebust decode_getattr_maxsz) 5201da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5221da177e4SLinus Torvalds encode_putfh_maxsz + \ 5231da177e4SLinus Torvalds encode_savefh_maxsz + \ 5241da177e4SLinus Torvalds encode_putfh_maxsz + \ 5256caf2c82STrond Myklebust encode_rename_maxsz + \ 5266caf2c82STrond Myklebust encode_getattr_maxsz + \ 5276caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5286caf2c82STrond Myklebust encode_getattr_maxsz) 5291da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5309b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5311da177e4SLinus Torvalds decode_putfh_maxsz + \ 5321da177e4SLinus Torvalds decode_savefh_maxsz + \ 5331da177e4SLinus Torvalds decode_putfh_maxsz + \ 5346caf2c82STrond Myklebust decode_rename_maxsz + \ 5356caf2c82STrond Myklebust decode_getattr_maxsz + \ 5366caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5376caf2c82STrond Myklebust decode_getattr_maxsz) 5381da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5399b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5401da177e4SLinus Torvalds encode_putfh_maxsz + \ 5411da177e4SLinus Torvalds encode_savefh_maxsz + \ 5421da177e4SLinus Torvalds encode_putfh_maxsz + \ 54391ba2eeeSTrond Myklebust encode_link_maxsz + \ 54491ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 54591ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 54691ba2eeeSTrond Myklebust decode_getattr_maxsz) 5471da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5491da177e4SLinus Torvalds decode_putfh_maxsz + \ 5501da177e4SLinus Torvalds decode_savefh_maxsz + \ 5511da177e4SLinus Torvalds decode_putfh_maxsz + \ 55291ba2eeeSTrond Myklebust decode_link_maxsz + \ 55391ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 55491ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 55591ba2eeeSTrond Myklebust decode_getattr_maxsz) 5561da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 5579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5581da177e4SLinus Torvalds encode_putfh_maxsz + \ 5591da177e4SLinus Torvalds encode_symlink_maxsz + \ 5601da177e4SLinus Torvalds encode_getattr_maxsz + \ 5611da177e4SLinus Torvalds encode_getfh_maxsz) 5621da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 5639b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5641da177e4SLinus Torvalds decode_putfh_maxsz + \ 5651da177e4SLinus Torvalds decode_symlink_maxsz + \ 5661da177e4SLinus Torvalds decode_getattr_maxsz + \ 5671da177e4SLinus Torvalds decode_getfh_maxsz) 5681da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 5699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5701da177e4SLinus Torvalds encode_putfh_maxsz + \ 57156ae19f3STrond Myklebust encode_savefh_maxsz + \ 5721da177e4SLinus Torvalds encode_create_maxsz + \ 57356ae19f3STrond Myklebust encode_getfh_maxsz + \ 5741da177e4SLinus Torvalds encode_getattr_maxsz + \ 57556ae19f3STrond Myklebust encode_restorefh_maxsz + \ 57656ae19f3STrond Myklebust encode_getattr_maxsz) 5771da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 5789b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5791da177e4SLinus Torvalds decode_putfh_maxsz + \ 58056ae19f3STrond Myklebust decode_savefh_maxsz + \ 5811da177e4SLinus Torvalds decode_create_maxsz + \ 58256ae19f3STrond Myklebust decode_getfh_maxsz + \ 5831da177e4SLinus Torvalds decode_getattr_maxsz + \ 58456ae19f3STrond Myklebust decode_restorefh_maxsz + \ 58556ae19f3STrond Myklebust decode_getattr_maxsz) 5861da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 5879b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5881da177e4SLinus Torvalds encode_putfh_maxsz + \ 5891da177e4SLinus Torvalds encode_getattr_maxsz) 5901da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 5919b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5921da177e4SLinus Torvalds decode_putfh_maxsz + \ 5931da177e4SLinus Torvalds decode_getattr_maxsz) 5941da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 5959b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5961da177e4SLinus Torvalds encode_putfh_maxsz + \ 5979104a55dSTrond Myklebust encode_statfs_maxsz) 5981da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 5999b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6001da177e4SLinus Torvalds decode_putfh_maxsz + \ 6019104a55dSTrond Myklebust decode_statfs_maxsz) 6021da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 604ab91f264STrond Myklebust encode_putfh_maxsz + \ 6051da177e4SLinus Torvalds encode_getattr_maxsz) 6061da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6079b7b9fccSAndy Adamson decode_sequence_maxsz + \ 608ab91f264STrond Myklebust decode_putfh_maxsz + \ 6091da177e4SLinus Torvalds decode_getattr_maxsz) 6101da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6121da177e4SLinus Torvalds encode_putfh_maxsz + \ 613fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 614fa178f29STrond Myklebust encode_getattr_maxsz) 6151da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6169b7b9fccSAndy Adamson decode_sequence_maxsz + \ 617fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 618fa178f29STrond Myklebust decode_getattr_maxsz) 619029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6209b7b9fccSAndy Adamson encode_sequence_maxsz + \ 621029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6229104a55dSTrond Myklebust encode_getacl_maxsz) 623029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6249b7b9fccSAndy Adamson decode_sequence_maxsz + \ 625029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6269104a55dSTrond Myklebust decode_getacl_maxsz) 62723ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6289b7b9fccSAndy Adamson encode_sequence_maxsz + \ 62923ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6309104a55dSTrond Myklebust encode_setacl_maxsz) 63123ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 63323ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6349104a55dSTrond Myklebust decode_setacl_maxsz) 635683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 636683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6379b7b9fccSAndy Adamson encode_sequence_maxsz + \ 638683b57b4STrond Myklebust encode_putfh_maxsz + \ 639e6889620STrond Myklebust encode_lookup_maxsz + \ 640e6889620STrond Myklebust encode_fs_locations_maxsz) 641683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 642683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6439b7b9fccSAndy Adamson decode_sequence_maxsz + \ 644683b57b4STrond Myklebust decode_putfh_maxsz + \ 645e6889620STrond Myklebust decode_lookup_maxsz + \ 646e6889620STrond Myklebust decode_fs_locations_maxsz) 64799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 64899fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 64999fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 65099fe60d0SBenny Halevy encode_exchange_id_maxsz) 65199fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 65299fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 65399fe60d0SBenny Halevy decode_exchange_id_maxsz) 654fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 655fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 656fc931582SAndy Adamson encode_create_session_maxsz) 657fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 658fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 659fc931582SAndy Adamson decode_create_session_maxsz) 6600f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 6610f3e66c6SAndy Adamson encode_destroy_session_maxsz) 6620f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 6630f3e66c6SAndy Adamson decode_destroy_session_maxsz) 6642050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 6652050f0ccSAndy Adamson encode_sequence_maxsz + \ 6662050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 6672050f0ccSAndy Adamson encode_fsinfo_maxsz) 6682050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 6692050f0ccSAndy Adamson decode_sequence_maxsz + \ 6702050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 6712050f0ccSAndy Adamson decode_fsinfo_maxsz) 67299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 6731da177e4SLinus Torvalds 674bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 675bca79478STrond Myklebust [NF4BAD] = 0, 676bca79478STrond Myklebust [NF4REG] = S_IFREG, 677bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 678bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 679bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 680bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 681bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 682bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 683bca79478STrond Myklebust [NF4ATTRDIR] = 0, 684bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 6851da177e4SLinus Torvalds }; 6861da177e4SLinus Torvalds 6871da177e4SLinus Torvalds struct compound_hdr { 6881da177e4SLinus Torvalds int32_t status; 6891da177e4SLinus Torvalds uint32_t nops; 690d017931cSAndy Adamson __be32 * nops_p; 6911da177e4SLinus Torvalds uint32_t taglen; 6921da177e4SLinus Torvalds char * tag; 6930c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 69466cc0429SBenny Halevy u32 minorversion; 6951da177e4SLinus Torvalds }; 6961da177e4SLinus Torvalds 6971da177e4SLinus Torvalds /* 6981da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 6991da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 7001da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 7011da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 7021da177e4SLinus Torvalds * 7031da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 7041da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 7051da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 7061da177e4SLinus Torvalds */ 7071da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 7081da177e4SLinus Torvalds #define WRITE64(n) do { \ 7091da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 7101da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 7111da177e4SLinus Torvalds } while (0) 7121da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 7131da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 7141da177e4SLinus Torvalds } while (0) 7151da177e4SLinus Torvalds 7161da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 7171da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 7181da177e4SLinus Torvalds BUG_ON(!p); \ 7191da177e4SLinus Torvalds } while (0) 7201da177e4SLinus Torvalds 7211da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7221da177e4SLinus Torvalds { 7238687b63aSAl Viro __be32 *p; 7241da177e4SLinus Torvalds 7251da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7261da177e4SLinus Torvalds BUG_ON(p == NULL); 7271da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7281da177e4SLinus Torvalds } 7291da177e4SLinus Torvalds 7300c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7310c4e8c18SBenny Halevy struct rpc_rqst *req, 7320c4e8c18SBenny Halevy struct compound_hdr *hdr) 7331da177e4SLinus Torvalds { 7348687b63aSAl Viro __be32 *p; 7350c4e8c18SBenny Halevy struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 7360c4e8c18SBenny Halevy 7370c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7380c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7390c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7400c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7411da177e4SLinus Torvalds 7421da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7431da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 7441da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 7451da177e4SLinus Torvalds WRITE32(hdr->taglen); 7461da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 74766cc0429SBenny Halevy WRITE32(hdr->minorversion); 748d017931cSAndy Adamson hdr->nops_p = p; 7491da177e4SLinus Torvalds WRITE32(hdr->nops); 750d017931cSAndy Adamson } 751d017931cSAndy Adamson 752d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 753d017931cSAndy Adamson { 754fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 755d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 7561da177e4SLinus Torvalds } 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 7591da177e4SLinus Torvalds { 7608687b63aSAl Viro __be32 *p; 7611da177e4SLinus Torvalds 7621da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 7631da177e4SLinus Torvalds BUG_ON(p == NULL); 7641da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 7651da177e4SLinus Torvalds } 7661da177e4SLinus Torvalds 767cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 7681da177e4SLinus Torvalds { 7691da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 7701da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 7711da177e4SLinus Torvalds int owner_namelen = 0; 7721da177e4SLinus Torvalds int owner_grouplen = 0; 7738687b63aSAl Viro __be32 *p; 7748687b63aSAl Viro __be32 *q; 7751da177e4SLinus Torvalds int len; 7761da177e4SLinus Torvalds uint32_t bmval0 = 0; 7771da177e4SLinus Torvalds uint32_t bmval1 = 0; 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds /* 7801da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 7811da177e4SLinus Torvalds * In the worst-case, this would be 7821da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 7831da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 78423ec6965SJ. Bruce Fields * such as owner/group. 7851da177e4SLinus Torvalds */ 7861da177e4SLinus Torvalds len = 16; 7871da177e4SLinus Torvalds 7881da177e4SLinus Torvalds /* Sigh */ 7891da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 7901da177e4SLinus Torvalds len += 8; 7911da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 7921da177e4SLinus Torvalds len += 4; 7931da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 7947539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 7951da177e4SLinus Torvalds if (owner_namelen < 0) { 796fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 7971da177e4SLinus Torvalds iap->ia_uid); 7981da177e4SLinus Torvalds /* XXX */ 7991da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 8001da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8011da177e4SLinus Torvalds /* goto out; */ 8021da177e4SLinus Torvalds } 8031da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8041da177e4SLinus Torvalds } 8051da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8067539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 8071da177e4SLinus Torvalds if (owner_grouplen < 0) { 808fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8091da177e4SLinus Torvalds iap->ia_gid); 8101da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8111da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8121da177e4SLinus Torvalds /* goto out; */ 8131da177e4SLinus Torvalds } 8141da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8151da177e4SLinus Torvalds } 8161da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8171da177e4SLinus Torvalds len += 16; 8181da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8191da177e4SLinus Torvalds len += 4; 8201da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8211da177e4SLinus Torvalds len += 16; 8221da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8231da177e4SLinus Torvalds len += 4; 8241da177e4SLinus Torvalds RESERVE_SPACE(len); 8251da177e4SLinus Torvalds 8261da177e4SLinus Torvalds /* 8271da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8281da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8291da177e4SLinus Torvalds */ 8301da177e4SLinus Torvalds WRITE32(2); 8311da177e4SLinus Torvalds q = p; 8321da177e4SLinus Torvalds p += 3; 8331da177e4SLinus Torvalds 8341da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8351da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 8361da177e4SLinus Torvalds WRITE64(iap->ia_size); 8371da177e4SLinus Torvalds } 8381da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8391da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 840cf3fff54STrond Myklebust WRITE32(iap->ia_mode & S_IALLUGO); 8411da177e4SLinus Torvalds } 8421da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8431da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 8441da177e4SLinus Torvalds WRITE32(owner_namelen); 8451da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 8461da177e4SLinus Torvalds } 8471da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8481da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 8491da177e4SLinus Torvalds WRITE32(owner_grouplen); 8501da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 8511da177e4SLinus Torvalds } 8521da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 8531da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 8541da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 8551da177e4SLinus Torvalds WRITE32(0); 8561da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 8571da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 8581da177e4SLinus Torvalds } 8591da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 8601da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 8611da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 8621da177e4SLinus Torvalds } 8631da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 8641da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 8651da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 8661da177e4SLinus Torvalds WRITE32(0); 8671da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 8681da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 8691da177e4SLinus Torvalds } 8701da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 8711da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 8721da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 8731da177e4SLinus Torvalds } 8741da177e4SLinus Torvalds 8751da177e4SLinus Torvalds /* 8761da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 8771da177e4SLinus Torvalds */ 8781da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 879fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 8801da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 8811da177e4SLinus Torvalds BUG(); 8821da177e4SLinus Torvalds } 8831da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 8841da177e4SLinus Torvalds *q++ = htonl(bmval0); 8851da177e4SLinus Torvalds *q++ = htonl(bmval1); 8861da177e4SLinus Torvalds *q++ = htonl(len); 8871da177e4SLinus Torvalds 8881da177e4SLinus Torvalds /* out: */ 8891da177e4SLinus Torvalds } 8901da177e4SLinus Torvalds 891cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 8921da177e4SLinus Torvalds { 8938687b63aSAl Viro __be32 *p; 8941da177e4SLinus Torvalds 8951da177e4SLinus Torvalds RESERVE_SPACE(8); 8961da177e4SLinus Torvalds WRITE32(OP_ACCESS); 8971da177e4SLinus Torvalds WRITE32(access); 898d017931cSAndy Adamson hdr->nops++; 899dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 9001da177e4SLinus Torvalds } 9011da177e4SLinus Torvalds 902cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9031da177e4SLinus Torvalds { 9048687b63aSAl Viro __be32 *p; 9051da177e4SLinus Torvalds 9068ae20abdSTrond Myklebust RESERVE_SPACE(8+NFS4_STATEID_SIZE); 9071da177e4SLinus Torvalds WRITE32(OP_CLOSE); 908cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 9098ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 910d017931cSAndy Adamson hdr->nops++; 911dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9121da177e4SLinus Torvalds } 9131da177e4SLinus Torvalds 914cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9151da177e4SLinus Torvalds { 9168687b63aSAl Viro __be32 *p; 9171da177e4SLinus Torvalds 9181da177e4SLinus Torvalds RESERVE_SPACE(16); 9191da177e4SLinus Torvalds WRITE32(OP_COMMIT); 9201da177e4SLinus Torvalds WRITE64(args->offset); 9211da177e4SLinus Torvalds WRITE32(args->count); 922d017931cSAndy Adamson hdr->nops++; 923dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds 926cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9271da177e4SLinus Torvalds { 9288687b63aSAl Viro __be32 *p; 9291da177e4SLinus Torvalds 9301da177e4SLinus Torvalds RESERVE_SPACE(8); 9311da177e4SLinus Torvalds WRITE32(OP_CREATE); 9321da177e4SLinus Torvalds WRITE32(create->ftype); 9331da177e4SLinus Torvalds 9341da177e4SLinus Torvalds switch (create->ftype) { 9351da177e4SLinus Torvalds case NF4LNK: 93694a6d753SChuck Lever RESERVE_SPACE(4); 93794a6d753SChuck Lever WRITE32(create->u.symlink.len); 93894a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9391da177e4SLinus Torvalds break; 9401da177e4SLinus Torvalds 9411da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 9421da177e4SLinus Torvalds RESERVE_SPACE(8); 9431da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 9441da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 9451da177e4SLinus Torvalds break; 9461da177e4SLinus Torvalds 9471da177e4SLinus Torvalds default: 9481da177e4SLinus Torvalds break; 9491da177e4SLinus Torvalds } 9501da177e4SLinus Torvalds 9511da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 9521da177e4SLinus Torvalds WRITE32(create->name->len); 9531da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 954d017931cSAndy Adamson hdr->nops++; 955dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 9561da177e4SLinus Torvalds 957cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 9581da177e4SLinus Torvalds } 9591da177e4SLinus Torvalds 960cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 9611da177e4SLinus Torvalds { 9628687b63aSAl Viro __be32 *p; 9631da177e4SLinus Torvalds 9641da177e4SLinus Torvalds RESERVE_SPACE(12); 9651da177e4SLinus Torvalds WRITE32(OP_GETATTR); 9661da177e4SLinus Torvalds WRITE32(1); 9671da177e4SLinus Torvalds WRITE32(bitmap); 968d017931cSAndy Adamson hdr->nops++; 969dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9701da177e4SLinus Torvalds } 9711da177e4SLinus Torvalds 972cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 9731da177e4SLinus Torvalds { 9748687b63aSAl Viro __be32 *p; 9751da177e4SLinus Torvalds 9761da177e4SLinus Torvalds RESERVE_SPACE(16); 9771da177e4SLinus Torvalds WRITE32(OP_GETATTR); 9781da177e4SLinus Torvalds WRITE32(2); 9791da177e4SLinus Torvalds WRITE32(bm0); 9801da177e4SLinus Torvalds WRITE32(bm1); 981d017931cSAndy Adamson hdr->nops++; 982dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9831da177e4SLinus Torvalds } 9841da177e4SLinus Torvalds 985cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9861da177e4SLinus Torvalds { 987cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 988d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 9891da177e4SLinus Torvalds } 9901da177e4SLinus Torvalds 991cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9921da177e4SLinus Torvalds { 993cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 994d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 9951da177e4SLinus Torvalds } 9961da177e4SLinus Torvalds 997cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 998830b8e33SManoj Naik { 999cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1000cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1001830b8e33SManoj Naik } 1002830b8e33SManoj Naik 1003cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10041da177e4SLinus Torvalds { 10058687b63aSAl Viro __be32 *p; 10061da177e4SLinus Torvalds 10071da177e4SLinus Torvalds RESERVE_SPACE(4); 10081da177e4SLinus Torvalds WRITE32(OP_GETFH); 1009d017931cSAndy Adamson hdr->nops++; 1010dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10111da177e4SLinus Torvalds } 10121da177e4SLinus Torvalds 1013cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10141da177e4SLinus Torvalds { 10158687b63aSAl Viro __be32 *p; 10161da177e4SLinus Torvalds 10171da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 10181da177e4SLinus Torvalds WRITE32(OP_LINK); 10191da177e4SLinus Torvalds WRITE32(name->len); 10201da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 1021d017931cSAndy Adamson hdr->nops++; 1022dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10231da177e4SLinus Torvalds } 10241da177e4SLinus Torvalds 1025911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1026911d1aafSTrond Myklebust { 1027911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1028911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1029911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1030911d1aafSTrond Myklebust } 1031911d1aafSTrond Myklebust 1032911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1033911d1aafSTrond Myklebust { 1034911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1035911d1aafSTrond Myklebust return ~(uint64_t)0; 1036911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1037911d1aafSTrond Myklebust } 1038911d1aafSTrond Myklebust 10391da177e4SLinus Torvalds /* 10401da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 10411da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 10421da177e4SLinus Torvalds */ 1043cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 10441da177e4SLinus Torvalds { 10458687b63aSAl Viro __be32 *p; 10461da177e4SLinus Torvalds 10471da177e4SLinus Torvalds RESERVE_SPACE(32); 10481da177e4SLinus Torvalds WRITE32(OP_LOCK); 1049911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, args->block)); 1050911d1aafSTrond Myklebust WRITE32(args->reclaim); 1051911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 1052911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 1053911d1aafSTrond Myklebust WRITE32(args->new_lock_owner); 1054911d1aafSTrond Myklebust if (args->new_lock_owner){ 10559f958ab8STrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 1056911d1aafSTrond Myklebust WRITE32(args->open_seqid->sequence->counter); 10578ae20abdSTrond Myklebust WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 1058911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 1059911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 10609f958ab8STrond Myklebust WRITE32(16); 10619f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 10629f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 10631da177e4SLinus Torvalds } 10641da177e4SLinus Torvalds else { 10658ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE+4); 10668ae20abdSTrond Myklebust WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 1067911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 10681da177e4SLinus Torvalds } 1069d017931cSAndy Adamson hdr->nops++; 1070dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 10711da177e4SLinus Torvalds } 10721da177e4SLinus Torvalds 1073cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 10741da177e4SLinus Torvalds { 10758687b63aSAl Viro __be32 *p; 10761da177e4SLinus Torvalds 10779f958ab8STrond Myklebust RESERVE_SPACE(52); 10781da177e4SLinus Torvalds WRITE32(OP_LOCKT); 1079911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 1080911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 1081911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 1082911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 10839f958ab8STrond Myklebust WRITE32(16); 10849f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 10859f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 1086d017931cSAndy Adamson hdr->nops++; 1087dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 10881da177e4SLinus Torvalds } 10891da177e4SLinus Torvalds 1090cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 10911da177e4SLinus Torvalds { 10928687b63aSAl Viro __be32 *p; 10931da177e4SLinus Torvalds 10948ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 10951da177e4SLinus Torvalds WRITE32(OP_LOCKU); 1096911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 1097911d1aafSTrond Myklebust WRITE32(args->seqid->sequence->counter); 10988ae20abdSTrond Myklebust WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 1099911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 1100911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 1101d017931cSAndy Adamson hdr->nops++; 1102dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11031da177e4SLinus Torvalds } 11041da177e4SLinus Torvalds 1105cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11061da177e4SLinus Torvalds { 11071da177e4SLinus Torvalds int len = name->len; 11088687b63aSAl Viro __be32 *p; 11091da177e4SLinus Torvalds 11101da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 11111da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 11121da177e4SLinus Torvalds WRITE32(len); 11131da177e4SLinus Torvalds WRITEMEM(name->name, len); 1114d017931cSAndy Adamson hdr->nops++; 1115dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11161da177e4SLinus Torvalds } 11171da177e4SLinus Torvalds 1118dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11191da177e4SLinus Torvalds { 11208687b63aSAl Viro __be32 *p; 11211da177e4SLinus Torvalds 11221da177e4SLinus Torvalds RESERVE_SPACE(8); 1123dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11241da177e4SLinus Torvalds case FMODE_READ: 11251da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 11261da177e4SLinus Torvalds break; 11271da177e4SLinus Torvalds case FMODE_WRITE: 11281da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 11291da177e4SLinus Torvalds break; 11301da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 11311da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 11321da177e4SLinus Torvalds break; 11331da177e4SLinus Torvalds default: 1134dc0b027dSTrond Myklebust WRITE32(0); 11351da177e4SLinus Torvalds } 11361da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 11371da177e4SLinus Torvalds } 11381da177e4SLinus Torvalds 11391da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11401da177e4SLinus Torvalds { 11418687b63aSAl Viro __be32 *p; 11421da177e4SLinus Torvalds /* 11431da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 11441da177e4SLinus Torvalds * owner 4 = 32 11451da177e4SLinus Torvalds */ 11461da177e4SLinus Torvalds RESERVE_SPACE(8); 11471da177e4SLinus Torvalds WRITE32(OP_OPEN); 1148cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1149dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 11509f958ab8STrond Myklebust RESERVE_SPACE(28); 11511da177e4SLinus Torvalds WRITE64(arg->clientid); 11529f958ab8STrond Myklebust WRITE32(16); 11539f958ab8STrond Myklebust WRITEMEM("open id:", 8); 11549f958ab8STrond Myklebust WRITE64(arg->id); 11551da177e4SLinus Torvalds } 11561da177e4SLinus Torvalds 11571da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11581da177e4SLinus Torvalds { 11598687b63aSAl Viro __be32 *p; 11601da177e4SLinus Torvalds 11611da177e4SLinus Torvalds RESERVE_SPACE(4); 11621da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 11631da177e4SLinus Torvalds case 0: 11641da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 11651da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 11661da177e4SLinus Torvalds break; 11671da177e4SLinus Torvalds default: 11681da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 11691da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 11701da177e4SLinus Torvalds } 11711da177e4SLinus Torvalds } 11721da177e4SLinus Torvalds 11731da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11741da177e4SLinus Torvalds { 11758687b63aSAl Viro __be32 *p; 11761da177e4SLinus Torvalds 11771da177e4SLinus Torvalds RESERVE_SPACE(4); 11781da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 11791da177e4SLinus Torvalds case 0: 11801da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 11811da177e4SLinus Torvalds break; 11821da177e4SLinus Torvalds default: 11831da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 11841da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 11851da177e4SLinus Torvalds encode_createmode(xdr, arg); 11861da177e4SLinus Torvalds } 11871da177e4SLinus Torvalds } 11881da177e4SLinus Torvalds 1189bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 11901da177e4SLinus Torvalds { 11918687b63aSAl Viro __be32 *p; 11921da177e4SLinus Torvalds 11931da177e4SLinus Torvalds RESERVE_SPACE(4); 11941da177e4SLinus Torvalds switch (delegation_type) { 11951da177e4SLinus Torvalds case 0: 11961da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 11971da177e4SLinus Torvalds break; 11981da177e4SLinus Torvalds case FMODE_READ: 11991da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 12001da177e4SLinus Torvalds break; 12011da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 12021da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 12031da177e4SLinus Torvalds break; 12041da177e4SLinus Torvalds default: 12051da177e4SLinus Torvalds BUG(); 12061da177e4SLinus Torvalds } 12071da177e4SLinus Torvalds } 12081da177e4SLinus Torvalds 12091da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12101da177e4SLinus Torvalds { 12118687b63aSAl Viro __be32 *p; 12121da177e4SLinus Torvalds 12131da177e4SLinus Torvalds RESERVE_SPACE(4); 12141da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 12151da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12161da177e4SLinus Torvalds } 12171da177e4SLinus Torvalds 1218bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12191da177e4SLinus Torvalds { 12208687b63aSAl Viro __be32 *p; 12211da177e4SLinus Torvalds 12221da177e4SLinus Torvalds RESERVE_SPACE(4); 12231da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 12241da177e4SLinus Torvalds encode_delegation_type(xdr, type); 12251da177e4SLinus Torvalds } 12261da177e4SLinus Torvalds 12271da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 12281da177e4SLinus Torvalds { 12298687b63aSAl Viro __be32 *p; 12301da177e4SLinus Torvalds 12318ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 12321da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 12338ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 12341da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12351da177e4SLinus Torvalds } 12361da177e4SLinus Torvalds 1237cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 12381da177e4SLinus Torvalds { 12391da177e4SLinus Torvalds encode_openhdr(xdr, arg); 12401da177e4SLinus Torvalds encode_opentype(xdr, arg); 12411da177e4SLinus Torvalds switch (arg->claim) { 12421da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 12431da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 12441da177e4SLinus Torvalds break; 12451da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 12461da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 12471da177e4SLinus Torvalds break; 12481da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 12491da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 12501da177e4SLinus Torvalds break; 12511da177e4SLinus Torvalds default: 12521da177e4SLinus Torvalds BUG(); 12531da177e4SLinus Torvalds } 1254d017931cSAndy Adamson hdr->nops++; 1255dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 12561da177e4SLinus Torvalds } 12571da177e4SLinus Torvalds 1258cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 12591da177e4SLinus Torvalds { 12608687b63aSAl Viro __be32 *p; 12611da177e4SLinus Torvalds 12628ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 12631da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 12648ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1265cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1266d017931cSAndy Adamson hdr->nops++; 1267dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 12681da177e4SLinus Torvalds } 12691da177e4SLinus Torvalds 1270cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 12711da177e4SLinus Torvalds { 12728687b63aSAl Viro __be32 *p; 12731da177e4SLinus Torvalds 12748ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 12751da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 12768ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1277cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1278dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1279d017931cSAndy Adamson hdr->nops++; 1280dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 12811da177e4SLinus Torvalds } 12821da177e4SLinus Torvalds 1283cf8cdbe5SAndy Adamson static void 1284d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 12851da177e4SLinus Torvalds { 12861da177e4SLinus Torvalds int len = fh->size; 12878687b63aSAl Viro __be32 *p; 12881da177e4SLinus Torvalds 12891da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 12901da177e4SLinus Torvalds WRITE32(OP_PUTFH); 12911da177e4SLinus Torvalds WRITE32(len); 12921da177e4SLinus Torvalds WRITEMEM(fh->data, len); 1293d017931cSAndy Adamson hdr->nops++; 1294dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 12951da177e4SLinus Torvalds } 12961da177e4SLinus Torvalds 1297cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12981da177e4SLinus Torvalds { 12998687b63aSAl Viro __be32 *p; 13001da177e4SLinus Torvalds 13011da177e4SLinus Torvalds RESERVE_SPACE(4); 13021da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 1303d017931cSAndy Adamson hdr->nops++; 1304dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13051da177e4SLinus Torvalds } 13061da177e4SLinus Torvalds 13071da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 13081da177e4SLinus Torvalds { 13091da177e4SLinus Torvalds nfs4_stateid stateid; 13108687b63aSAl Viro __be32 *p; 13111da177e4SLinus Torvalds 13128ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE); 13131da177e4SLinus Torvalds if (ctx->state != NULL) { 13141da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 13158ae20abdSTrond Myklebust WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 13161da177e4SLinus Torvalds } else 13178ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 13181da177e4SLinus Torvalds } 13191da177e4SLinus Torvalds 1320cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13211da177e4SLinus Torvalds { 13228687b63aSAl Viro __be32 *p; 13231da177e4SLinus Torvalds 13241da177e4SLinus Torvalds RESERVE_SPACE(4); 13251da177e4SLinus Torvalds WRITE32(OP_READ); 13261da177e4SLinus Torvalds 13271da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13281da177e4SLinus Torvalds 13291da177e4SLinus Torvalds RESERVE_SPACE(12); 13301da177e4SLinus Torvalds WRITE64(args->offset); 13311da177e4SLinus Torvalds WRITE32(args->count); 1332d017931cSAndy Adamson hdr->nops++; 1333dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 13341da177e4SLinus Torvalds } 13351da177e4SLinus Torvalds 1336cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 13371da177e4SLinus Torvalds { 133897d312d0SManoj Naik uint32_t attrs[2] = { 133997d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 134097d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 134197d312d0SManoj Naik }; 13428687b63aSAl Viro __be32 *p; 13431da177e4SLinus Torvalds 13448ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 13451da177e4SLinus Torvalds WRITE32(OP_READDIR); 13461da177e4SLinus Torvalds WRITE64(readdir->cookie); 13478ae20abdSTrond Myklebust WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 13481da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 13491da177e4SLinus Torvalds WRITE32(readdir->count); 13501da177e4SLinus Torvalds WRITE32(2); 135197d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 135297d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 135397d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 135497d312d0SManoj Naik else 135597d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 135697d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 135797d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1358d017931cSAndy Adamson hdr->nops++; 1359dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 136044109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 136144109241SFred Isaman __func__, 1362eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1363eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1364eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1365eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1366eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 13671da177e4SLinus Torvalds } 13681da177e4SLinus Torvalds 1369cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 13701da177e4SLinus Torvalds { 13718687b63aSAl Viro __be32 *p; 13721da177e4SLinus Torvalds 13731da177e4SLinus Torvalds RESERVE_SPACE(4); 13741da177e4SLinus Torvalds WRITE32(OP_READLINK); 1375d017931cSAndy Adamson hdr->nops++; 1376dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 13771da177e4SLinus Torvalds } 13781da177e4SLinus Torvalds 1379cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13801da177e4SLinus Torvalds { 13818687b63aSAl Viro __be32 *p; 13821da177e4SLinus Torvalds 13831da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 13841da177e4SLinus Torvalds WRITE32(OP_REMOVE); 13851da177e4SLinus Torvalds WRITE32(name->len); 13861da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 1387d017931cSAndy Adamson hdr->nops++; 1388dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 13891da177e4SLinus Torvalds } 13901da177e4SLinus Torvalds 1391cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 13921da177e4SLinus Torvalds { 13938687b63aSAl Viro __be32 *p; 13941da177e4SLinus Torvalds 13951da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 13961da177e4SLinus Torvalds WRITE32(OP_RENAME); 13971da177e4SLinus Torvalds WRITE32(oldname->len); 13981da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 13991da177e4SLinus Torvalds 14001da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 14011da177e4SLinus Torvalds WRITE32(newname->len); 14021da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 1403d017931cSAndy Adamson hdr->nops++; 1404dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14051da177e4SLinus Torvalds } 14061da177e4SLinus Torvalds 1407cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14081da177e4SLinus Torvalds { 14098687b63aSAl Viro __be32 *p; 14101da177e4SLinus Torvalds 14111da177e4SLinus Torvalds RESERVE_SPACE(12); 14121da177e4SLinus Torvalds WRITE32(OP_RENEW); 14131da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 1414d017931cSAndy Adamson hdr->nops++; 1415dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 14161da177e4SLinus Torvalds } 14171da177e4SLinus Torvalds 1418cf8cdbe5SAndy Adamson static void 1419d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 142056ae19f3STrond Myklebust { 14218687b63aSAl Viro __be32 *p; 142256ae19f3STrond Myklebust 142356ae19f3STrond Myklebust RESERVE_SPACE(4); 142456ae19f3STrond Myklebust WRITE32(OP_RESTOREFH); 1425d017931cSAndy Adamson hdr->nops++; 1426dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 142756ae19f3STrond Myklebust } 142856ae19f3STrond Myklebust 142956ae19f3STrond Myklebust static int 1430d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 143123ec6965SJ. Bruce Fields { 14328687b63aSAl Viro __be32 *p; 143323ec6965SJ. Bruce Fields 14348ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 143523ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 14368ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 143723ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 143823ec6965SJ. Bruce Fields WRITE32(1); 143923ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 144023ec6965SJ. Bruce Fields if (arg->acl_len % 4) 144123ec6965SJ. Bruce Fields return -EINVAL; 144223ec6965SJ. Bruce Fields RESERVE_SPACE(4); 144323ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 144423ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1445d017931cSAndy Adamson hdr->nops++; 1446dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 144723ec6965SJ. Bruce Fields return 0; 144823ec6965SJ. Bruce Fields } 144923ec6965SJ. Bruce Fields 1450cf8cdbe5SAndy Adamson static void 1451d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14521da177e4SLinus Torvalds { 14538687b63aSAl Viro __be32 *p; 14541da177e4SLinus Torvalds 14551da177e4SLinus Torvalds RESERVE_SPACE(4); 14561da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 1457d017931cSAndy Adamson hdr->nops++; 1458dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 14591da177e4SLinus Torvalds } 14601da177e4SLinus Torvalds 1461cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 14621da177e4SLinus Torvalds { 14638687b63aSAl Viro __be32 *p; 14641da177e4SLinus Torvalds 14658ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 14661da177e4SLinus Torvalds WRITE32(OP_SETATTR); 14678ae20abdSTrond Myklebust WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 1468d017931cSAndy Adamson hdr->nops++; 1469dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1470cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 14711da177e4SLinus Torvalds } 14721da177e4SLinus Torvalds 1473cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 14741da177e4SLinus Torvalds { 14758687b63aSAl Viro __be32 *p; 14761da177e4SLinus Torvalds 14778ae20abdSTrond Myklebust RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 14781da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 14798ae20abdSTrond Myklebust WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 14801da177e4SLinus Torvalds 14811da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 14821da177e4SLinus Torvalds RESERVE_SPACE(4); 14831da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 14841da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 14851da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 14861da177e4SLinus Torvalds RESERVE_SPACE(4); 14871da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 1488d017931cSAndy Adamson hdr->nops++; 1489dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 14901da177e4SLinus Torvalds } 14911da177e4SLinus Torvalds 1492cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 14931da177e4SLinus Torvalds { 14948687b63aSAl Viro __be32 *p; 14951da177e4SLinus Torvalds 14968ae20abdSTrond Myklebust RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 14971da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 14981da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 14998ae20abdSTrond Myklebust WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1500d017931cSAndy Adamson hdr->nops++; 1501dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15021da177e4SLinus Torvalds } 15031da177e4SLinus Torvalds 1504cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15051da177e4SLinus Torvalds { 15068687b63aSAl Viro __be32 *p; 15071da177e4SLinus Torvalds 15081da177e4SLinus Torvalds RESERVE_SPACE(4); 15091da177e4SLinus Torvalds WRITE32(OP_WRITE); 15101da177e4SLinus Torvalds 15111da177e4SLinus Torvalds encode_stateid(xdr, args->context); 15121da177e4SLinus Torvalds 15131da177e4SLinus Torvalds RESERVE_SPACE(16); 15141da177e4SLinus Torvalds WRITE64(args->offset); 15151da177e4SLinus Torvalds WRITE32(args->stable); 15161da177e4SLinus Torvalds WRITE32(args->count); 15171da177e4SLinus Torvalds 15181da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1519d017931cSAndy Adamson hdr->nops++; 1520dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 15211da177e4SLinus Torvalds } 15221da177e4SLinus Torvalds 1523cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15241da177e4SLinus Torvalds { 15258687b63aSAl Viro __be32 *p; 15261da177e4SLinus Torvalds 15278ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 15281da177e4SLinus Torvalds 15291da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 15308ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1531d017931cSAndy Adamson hdr->nops++; 1532dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15331da177e4SLinus Torvalds } 15349b7b9fccSAndy Adamson 153599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15369b7b9fccSAndy Adamson /* NFSv4.1 operations */ 153799fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 153899fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 153999fe60d0SBenny Halevy struct compound_hdr *hdr) 154099fe60d0SBenny Halevy { 154199fe60d0SBenny Halevy __be32 *p; 154299fe60d0SBenny Halevy 154399fe60d0SBenny Halevy RESERVE_SPACE(4 + sizeof(args->verifier->data)); 154499fe60d0SBenny Halevy WRITE32(OP_EXCHANGE_ID); 154599fe60d0SBenny Halevy WRITEMEM(args->verifier->data, sizeof(args->verifier->data)); 154699fe60d0SBenny Halevy 154799fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 154899fe60d0SBenny Halevy 154999fe60d0SBenny Halevy RESERVE_SPACE(12); 155099fe60d0SBenny Halevy WRITE32(args->flags); 155199fe60d0SBenny Halevy WRITE32(0); /* zero length state_protect4_a */ 155299fe60d0SBenny Halevy WRITE32(0); /* zero length implementation id array */ 155399fe60d0SBenny Halevy hdr->nops++; 155499fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 155599fe60d0SBenny Halevy } 1556fc931582SAndy Adamson 1557fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1558fc931582SAndy Adamson struct nfs41_create_session_args *args, 1559fc931582SAndy Adamson struct compound_hdr *hdr) 1560fc931582SAndy Adamson { 1561fc931582SAndy Adamson __be32 *p; 1562fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1563fc931582SAndy Adamson uint32_t len; 1564fc931582SAndy Adamson struct nfs_client *clp = args->client; 1565fc931582SAndy Adamson 1566fc931582SAndy Adamson RESERVE_SPACE(4); 1567fc931582SAndy Adamson WRITE32(OP_CREATE_SESSION); 1568fc931582SAndy Adamson 1569fc931582SAndy Adamson RESERVE_SPACE(8); 1570fc931582SAndy Adamson WRITE64(clp->cl_ex_clid); 1571fc931582SAndy Adamson 1572fc931582SAndy Adamson RESERVE_SPACE(8); 1573fc931582SAndy Adamson WRITE32(clp->cl_seqid); /*Sequence id */ 1574fc931582SAndy Adamson WRITE32(args->flags); /*flags */ 1575fc931582SAndy Adamson 1576fc931582SAndy Adamson RESERVE_SPACE(2*28); /* 2 channel_attrs */ 1577fc931582SAndy Adamson /* Fore Channel */ 1578fc931582SAndy Adamson WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ 1579fc931582SAndy Adamson WRITE32(args->fc_attrs.max_rqst_sz); /* max req size */ 1580fc931582SAndy Adamson WRITE32(args->fc_attrs.max_resp_sz); /* max resp size */ 1581fc931582SAndy Adamson WRITE32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1582fc931582SAndy Adamson WRITE32(args->fc_attrs.max_ops); /* max operations */ 1583fc931582SAndy Adamson WRITE32(args->fc_attrs.max_reqs); /* max requests */ 1584fc931582SAndy Adamson WRITE32(0); /* rdmachannel_attrs */ 1585fc931582SAndy Adamson 1586fc931582SAndy Adamson /* Back Channel */ 1587fc931582SAndy Adamson WRITE32(args->fc_attrs.headerpadsz); /* header padding size */ 1588fc931582SAndy Adamson WRITE32(args->bc_attrs.max_rqst_sz); /* max req size */ 1589fc931582SAndy Adamson WRITE32(args->bc_attrs.max_resp_sz); /* max resp size */ 1590fc931582SAndy Adamson WRITE32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1591fc931582SAndy Adamson WRITE32(args->bc_attrs.max_ops); /* max operations */ 1592fc931582SAndy Adamson WRITE32(args->bc_attrs.max_reqs); /* max requests */ 1593fc931582SAndy Adamson WRITE32(0); /* rdmachannel_attrs */ 1594fc931582SAndy Adamson 1595fc931582SAndy Adamson RESERVE_SPACE(4); 1596fc931582SAndy Adamson WRITE32(args->cb_program); /* cb_program */ 1597fc931582SAndy Adamson 1598fc931582SAndy Adamson RESERVE_SPACE(4); /* # of security flavors */ 1599fc931582SAndy Adamson WRITE32(1); 1600fc931582SAndy Adamson 1601fc931582SAndy Adamson RESERVE_SPACE(4); 1602fc931582SAndy Adamson WRITE32(RPC_AUTH_UNIX); /* auth_sys */ 1603fc931582SAndy Adamson 1604fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1605fc931582SAndy Adamson RESERVE_SPACE(4); 1606fc931582SAndy Adamson WRITE32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1607fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1608fc931582SAndy Adamson clp->cl_ipaddr); 1609fc931582SAndy Adamson RESERVE_SPACE(16 + len); 1610fc931582SAndy Adamson WRITE32(len); 1611fc931582SAndy Adamson WRITEMEM(machine_name, len); 1612fc931582SAndy Adamson WRITE32(0); /* UID */ 1613fc931582SAndy Adamson WRITE32(0); /* GID */ 1614fc931582SAndy Adamson WRITE32(0); /* No more gids */ 1615fc931582SAndy Adamson hdr->nops++; 1616fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1617fc931582SAndy Adamson } 16180f3e66c6SAndy Adamson 16190f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16200f3e66c6SAndy Adamson struct nfs4_session *session, 16210f3e66c6SAndy Adamson struct compound_hdr *hdr) 16220f3e66c6SAndy Adamson { 16230f3e66c6SAndy Adamson __be32 *p; 16240f3e66c6SAndy Adamson RESERVE_SPACE(4 + NFS4_MAX_SESSIONID_LEN); 16250f3e66c6SAndy Adamson WRITE32(OP_DESTROY_SESSION); 16260f3e66c6SAndy Adamson WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 16270f3e66c6SAndy Adamson hdr->nops++; 16280f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 16290f3e66c6SAndy Adamson } 163099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 163199fe60d0SBenny Halevy 16329b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 16339b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 16349b7b9fccSAndy Adamson struct compound_hdr *hdr) 16359b7b9fccSAndy Adamson { 16369b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 16379b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 16389b7b9fccSAndy Adamson 16399b7b9fccSAndy Adamson if (!session) 16409b7b9fccSAndy Adamson return; 16419b7b9fccSAndy Adamson 16429b7b9fccSAndy Adamson /* stub */ 16439b7b9fccSAndy Adamson hdr->nops++; 16449b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 16459b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 16469b7b9fccSAndy Adamson } 16479b7b9fccSAndy Adamson 16481da177e4SLinus Torvalds /* 16491da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 16501da177e4SLinus Torvalds */ 16511da177e4SLinus Torvalds 165266cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 165366cc0429SBenny Halevy { 165466cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 165566cc0429SBenny Halevy if (args->sa_session) 165666cc0429SBenny Halevy return args->sa_session->clp->cl_minorversion; 165766cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 165866cc0429SBenny Halevy return 0; 165966cc0429SBenny Halevy } 166066cc0429SBenny Halevy 16611da177e4SLinus Torvalds /* 16621da177e4SLinus Torvalds * Encode an ACCESS request 16631da177e4SLinus Torvalds */ 16648687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 16651da177e4SLinus Torvalds { 16661da177e4SLinus Torvalds struct xdr_stream xdr; 16671da177e4SLinus Torvalds struct compound_hdr hdr = { 166866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 16691da177e4SLinus Torvalds }; 16701da177e4SLinus Torvalds 16711da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16720c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 16739b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1674cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1675cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1676cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1677d017931cSAndy Adamson encode_nops(&hdr); 1678cf8cdbe5SAndy Adamson return 0; 16791da177e4SLinus Torvalds } 16801da177e4SLinus Torvalds 16811da177e4SLinus Torvalds /* 16821da177e4SLinus Torvalds * Encode LOOKUP request 16831da177e4SLinus Torvalds */ 16848687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 16851da177e4SLinus Torvalds { 16861da177e4SLinus Torvalds struct xdr_stream xdr; 16871da177e4SLinus Torvalds struct compound_hdr hdr = { 168866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 16891da177e4SLinus Torvalds }; 16901da177e4SLinus Torvalds 16911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16920c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 16939b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1694cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1695cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1696cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1697cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1698d017931cSAndy Adamson encode_nops(&hdr); 1699cf8cdbe5SAndy Adamson return 0; 17001da177e4SLinus Torvalds } 17011da177e4SLinus Torvalds 17021da177e4SLinus Torvalds /* 17031da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 17041da177e4SLinus Torvalds */ 17058687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 17061da177e4SLinus Torvalds { 17071da177e4SLinus Torvalds struct xdr_stream xdr; 17081da177e4SLinus Torvalds struct compound_hdr hdr = { 170966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17101da177e4SLinus Torvalds }; 17111da177e4SLinus Torvalds 17121da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17130c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17149b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1715cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1716cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1717cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1718d017931cSAndy Adamson encode_nops(&hdr); 1719cf8cdbe5SAndy Adamson return 0; 17201da177e4SLinus Torvalds } 17211da177e4SLinus Torvalds 17221da177e4SLinus Torvalds /* 17231da177e4SLinus Torvalds * Encode REMOVE request 17241da177e4SLinus Torvalds */ 17254fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 17261da177e4SLinus Torvalds { 17271da177e4SLinus Torvalds struct xdr_stream xdr; 17281da177e4SLinus Torvalds struct compound_hdr hdr = { 172966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17301da177e4SLinus Torvalds }; 17311da177e4SLinus Torvalds 17321da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17330c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17349b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1735cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1736cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1737cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1738d017931cSAndy Adamson encode_nops(&hdr); 1739cf8cdbe5SAndy Adamson return 0; 17401da177e4SLinus Torvalds } 17411da177e4SLinus Torvalds 17421da177e4SLinus Torvalds /* 17431da177e4SLinus Torvalds * Encode RENAME request 17441da177e4SLinus Torvalds */ 17458687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 17461da177e4SLinus Torvalds { 17471da177e4SLinus Torvalds struct xdr_stream xdr; 17481da177e4SLinus Torvalds struct compound_hdr hdr = { 174966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17501da177e4SLinus Torvalds }; 17511da177e4SLinus Torvalds 17521da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17530c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17549b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1755cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1756cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1757cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1758cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1759cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1760cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1761cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1762d017931cSAndy Adamson encode_nops(&hdr); 1763cf8cdbe5SAndy Adamson return 0; 17641da177e4SLinus Torvalds } 17651da177e4SLinus Torvalds 17661da177e4SLinus Torvalds /* 17671da177e4SLinus Torvalds * Encode LINK request 17681da177e4SLinus Torvalds */ 17698687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 17701da177e4SLinus Torvalds { 17711da177e4SLinus Torvalds struct xdr_stream xdr; 17721da177e4SLinus Torvalds struct compound_hdr hdr = { 177366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17741da177e4SLinus Torvalds }; 17751da177e4SLinus Torvalds 17761da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17770c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17789b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1779cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1780cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1781cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1782cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1783cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1784cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1785cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1786d017931cSAndy Adamson encode_nops(&hdr); 1787cf8cdbe5SAndy Adamson return 0; 17881da177e4SLinus Torvalds } 17891da177e4SLinus Torvalds 17901da177e4SLinus Torvalds /* 17911da177e4SLinus Torvalds * Encode CREATE request 17921da177e4SLinus Torvalds */ 17938687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 17941da177e4SLinus Torvalds { 17951da177e4SLinus Torvalds struct xdr_stream xdr; 17961da177e4SLinus Torvalds struct compound_hdr hdr = { 179766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17981da177e4SLinus Torvalds }; 17991da177e4SLinus Torvalds 18001da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18010c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18029b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1803cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1804cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1805cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1806cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1807cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1808cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1809cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1810d017931cSAndy Adamson encode_nops(&hdr); 1811cf8cdbe5SAndy Adamson return 0; 18121da177e4SLinus Torvalds } 18131da177e4SLinus Torvalds 18141da177e4SLinus Torvalds /* 18151da177e4SLinus Torvalds * Encode SYMLINK request 18161da177e4SLinus Torvalds */ 18178687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18181da177e4SLinus Torvalds { 18191da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 18201da177e4SLinus Torvalds } 18211da177e4SLinus Torvalds 18221da177e4SLinus Torvalds /* 18231da177e4SLinus Torvalds * Encode GETATTR request 18241da177e4SLinus Torvalds */ 18258687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 18261da177e4SLinus Torvalds { 18271da177e4SLinus Torvalds struct xdr_stream xdr; 18281da177e4SLinus Torvalds struct compound_hdr hdr = { 182966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18301da177e4SLinus Torvalds }; 18311da177e4SLinus Torvalds 18321da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18330c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18349b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1835cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &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 a CLOSE request 18431da177e4SLinus Torvalds */ 18448687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 18451da177e4SLinus Torvalds { 18461da177e4SLinus Torvalds struct xdr_stream xdr; 18471da177e4SLinus Torvalds struct compound_hdr hdr = { 184866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18491da177e4SLinus Torvalds }; 18501da177e4SLinus Torvalds 18511da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18520c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18539b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1854cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1855cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1856cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1857d017931cSAndy Adamson encode_nops(&hdr); 1858cf8cdbe5SAndy Adamson return 0; 18591da177e4SLinus Torvalds } 18601da177e4SLinus Torvalds 18611da177e4SLinus Torvalds /* 18621da177e4SLinus Torvalds * Encode an OPEN request 18631da177e4SLinus Torvalds */ 18648687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 18651da177e4SLinus Torvalds { 18661da177e4SLinus Torvalds struct xdr_stream xdr; 18671da177e4SLinus Torvalds struct compound_hdr hdr = { 186866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18691da177e4SLinus Torvalds }; 18701da177e4SLinus Torvalds 18711da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18720c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18739b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1874cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1875cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1876cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1877cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1878cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1879cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1880cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1881d017931cSAndy Adamson encode_nops(&hdr); 1882cf8cdbe5SAndy Adamson return 0; 18831da177e4SLinus Torvalds } 18841da177e4SLinus Torvalds 18851da177e4SLinus Torvalds /* 18861da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 18871da177e4SLinus Torvalds */ 18888687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 18891da177e4SLinus Torvalds { 18901da177e4SLinus Torvalds struct xdr_stream xdr; 18911da177e4SLinus Torvalds struct compound_hdr hdr = { 1892d017931cSAndy Adamson .nops = 0, 18931da177e4SLinus Torvalds }; 18941da177e4SLinus Torvalds 18951da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18960c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1897cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1898cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1899d017931cSAndy Adamson encode_nops(&hdr); 1900cf8cdbe5SAndy Adamson return 0; 19011da177e4SLinus Torvalds } 19021da177e4SLinus Torvalds 19031da177e4SLinus Torvalds /* 19041da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 19051da177e4SLinus Torvalds */ 19068687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19071da177e4SLinus Torvalds { 19081da177e4SLinus Torvalds struct xdr_stream xdr; 19091da177e4SLinus Torvalds struct compound_hdr hdr = { 191066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19111da177e4SLinus Torvalds }; 19121da177e4SLinus Torvalds 19131da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19140c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19159b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1916cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1917cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1918cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1919d017931cSAndy Adamson encode_nops(&hdr); 1920cf8cdbe5SAndy Adamson return 0; 19211da177e4SLinus Torvalds } 19221da177e4SLinus Torvalds 19231da177e4SLinus Torvalds /* 19241da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 19251da177e4SLinus Torvalds */ 19268687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19271da177e4SLinus Torvalds { 19281da177e4SLinus Torvalds struct xdr_stream xdr; 19291da177e4SLinus Torvalds struct compound_hdr hdr = { 193066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19311da177e4SLinus Torvalds }; 19321da177e4SLinus Torvalds 19331da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19340c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19359b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1936cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1937cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1938cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1939d017931cSAndy Adamson encode_nops(&hdr); 1940cf8cdbe5SAndy Adamson return 0; 19411da177e4SLinus Torvalds } 19421da177e4SLinus Torvalds 19431da177e4SLinus Torvalds /* 19441da177e4SLinus Torvalds * Encode a LOCK request 19451da177e4SLinus Torvalds */ 19468687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 19471da177e4SLinus Torvalds { 19481da177e4SLinus Torvalds struct xdr_stream xdr; 19491da177e4SLinus Torvalds struct compound_hdr hdr = { 195066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19511da177e4SLinus Torvalds }; 19521da177e4SLinus Torvalds 19531da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19540c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19559b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1956cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1957cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 1958d017931cSAndy Adamson encode_nops(&hdr); 1959cf8cdbe5SAndy Adamson return 0; 19601da177e4SLinus Torvalds } 19611da177e4SLinus Torvalds 19621da177e4SLinus Torvalds /* 19631da177e4SLinus Torvalds * Encode a LOCKT request 19641da177e4SLinus Torvalds */ 19658687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 19661da177e4SLinus Torvalds { 19671da177e4SLinus Torvalds struct xdr_stream xdr; 19681da177e4SLinus Torvalds struct compound_hdr hdr = { 196966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19701da177e4SLinus Torvalds }; 19711da177e4SLinus Torvalds 19721da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19730c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19749b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1975cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1976cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 1977d017931cSAndy Adamson encode_nops(&hdr); 1978cf8cdbe5SAndy Adamson return 0; 19791da177e4SLinus Torvalds } 19801da177e4SLinus Torvalds 19811da177e4SLinus Torvalds /* 19821da177e4SLinus Torvalds * Encode a LOCKU request 19831da177e4SLinus Torvalds */ 19848687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 19851da177e4SLinus Torvalds { 19861da177e4SLinus Torvalds struct xdr_stream xdr; 19871da177e4SLinus Torvalds struct compound_hdr hdr = { 198866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19891da177e4SLinus Torvalds }; 19901da177e4SLinus Torvalds 19911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19920c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19939b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1994cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1995cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 1996d017931cSAndy Adamson encode_nops(&hdr); 1997cf8cdbe5SAndy Adamson return 0; 19981da177e4SLinus Torvalds } 19991da177e4SLinus Torvalds 20001da177e4SLinus Torvalds /* 20011da177e4SLinus Torvalds * Encode a READLINK request 20021da177e4SLinus Torvalds */ 20038687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 20041da177e4SLinus Torvalds { 20051da177e4SLinus Torvalds struct xdr_stream xdr; 20061da177e4SLinus Torvalds struct compound_hdr hdr = { 200766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20081da177e4SLinus Torvalds }; 20091da177e4SLinus Torvalds 20101da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20110c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20129b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2013cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2014cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2015e3a535e1STrond Myklebust 201628f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2017e3a535e1STrond Myklebust args->pgbase, args->pglen); 2018d017931cSAndy Adamson encode_nops(&hdr); 2019cf8cdbe5SAndy Adamson return 0; 20201da177e4SLinus Torvalds } 20211da177e4SLinus Torvalds 20221da177e4SLinus Torvalds /* 20231da177e4SLinus Torvalds * Encode a READDIR request 20241da177e4SLinus Torvalds */ 20258687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 20261da177e4SLinus Torvalds { 20271da177e4SLinus Torvalds struct xdr_stream xdr; 20281da177e4SLinus Torvalds struct compound_hdr hdr = { 202966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20301da177e4SLinus Torvalds }; 20311da177e4SLinus Torvalds 20321da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20330c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20349b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2035cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2036cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2037d6ac02dfSTrond Myklebust 203828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2039d6ac02dfSTrond Myklebust args->pgbase, args->count); 2040d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 204128f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2042d6ac02dfSTrond Myklebust args->pgbase, args->count); 2043d017931cSAndy Adamson encode_nops(&hdr); 2044cf8cdbe5SAndy Adamson return 0; 20451da177e4SLinus Torvalds } 20461da177e4SLinus Torvalds 20471da177e4SLinus Torvalds /* 20481da177e4SLinus Torvalds * Encode a READ request 20491da177e4SLinus Torvalds */ 20508687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 20511da177e4SLinus Torvalds { 20521da177e4SLinus Torvalds struct xdr_stream xdr; 20531da177e4SLinus Torvalds struct compound_hdr hdr = { 205466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20551da177e4SLinus Torvalds }; 20561da177e4SLinus Torvalds 20571da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20580c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20599b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2060cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2061cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 20621da177e4SLinus Torvalds 206328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 20641da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 20654f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2066d017931cSAndy Adamson encode_nops(&hdr); 2067cf8cdbe5SAndy Adamson return 0; 20681da177e4SLinus Torvalds } 20691da177e4SLinus Torvalds 20701da177e4SLinus Torvalds /* 20711da177e4SLinus Torvalds * Encode an SETATTR request 20721da177e4SLinus Torvalds */ 20738687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 20741da177e4SLinus Torvalds { 20751da177e4SLinus Torvalds struct xdr_stream xdr; 20761da177e4SLinus Torvalds struct compound_hdr hdr = { 207766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20781da177e4SLinus Torvalds }; 20791da177e4SLinus Torvalds 20801da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20810c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20829b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2083cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2084cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2085cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2086d017931cSAndy Adamson encode_nops(&hdr); 2087cf8cdbe5SAndy Adamson return 0; 20881da177e4SLinus Torvalds } 20891da177e4SLinus Torvalds 20901da177e4SLinus Torvalds /* 2091029d105eSJ. Bruce Fields * Encode a GETACL request 2092029d105eSJ. Bruce Fields */ 2093029d105eSJ. Bruce Fields static int 20948687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2095029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2096029d105eSJ. Bruce Fields { 2097029d105eSJ. Bruce Fields struct xdr_stream xdr; 2098029d105eSJ. Bruce Fields struct compound_hdr hdr = { 209966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2100029d105eSJ. Bruce Fields }; 210128f56694SBenny Halevy uint32_t replen; 2102029d105eSJ. Bruce Fields 2103029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21040c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21059b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2106cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 210728f56694SBenny Halevy replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; 2108cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2109cf8cdbe5SAndy Adamson 211028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2111029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2112d017931cSAndy Adamson encode_nops(&hdr); 2113cf8cdbe5SAndy Adamson return 0; 2114029d105eSJ. Bruce Fields } 2115029d105eSJ. Bruce Fields 2116029d105eSJ. Bruce Fields /* 21171da177e4SLinus Torvalds * Encode a WRITE request 21181da177e4SLinus Torvalds */ 21198687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21201da177e4SLinus Torvalds { 21211da177e4SLinus Torvalds struct xdr_stream xdr; 21221da177e4SLinus Torvalds struct compound_hdr hdr = { 212366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21241da177e4SLinus Torvalds }; 21251da177e4SLinus Torvalds 21261da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21270c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21289b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2129cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2130cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 21314f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2132cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2133d017931cSAndy Adamson encode_nops(&hdr); 2134cf8cdbe5SAndy Adamson return 0; 21351da177e4SLinus Torvalds } 21361da177e4SLinus Torvalds 21371da177e4SLinus Torvalds /* 21381da177e4SLinus Torvalds * a COMMIT request 21391da177e4SLinus Torvalds */ 21408687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21411da177e4SLinus Torvalds { 21421da177e4SLinus Torvalds struct xdr_stream xdr; 21431da177e4SLinus Torvalds struct compound_hdr hdr = { 214466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21451da177e4SLinus Torvalds }; 21461da177e4SLinus Torvalds 21471da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21480c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21499b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2150cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2151cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2152cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2153d017931cSAndy Adamson encode_nops(&hdr); 2154cf8cdbe5SAndy Adamson return 0; 21551da177e4SLinus Torvalds } 21561da177e4SLinus Torvalds 21571da177e4SLinus Torvalds /* 21581da177e4SLinus Torvalds * FSINFO request 21591da177e4SLinus Torvalds */ 21608687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 21611da177e4SLinus Torvalds { 21621da177e4SLinus Torvalds struct xdr_stream xdr; 21631da177e4SLinus Torvalds struct compound_hdr hdr = { 216466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21651da177e4SLinus Torvalds }; 21661da177e4SLinus Torvalds 21671da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21680c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21699b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2170cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2171cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2172d017931cSAndy Adamson encode_nops(&hdr); 2173cf8cdbe5SAndy Adamson return 0; 21741da177e4SLinus Torvalds } 21751da177e4SLinus Torvalds 21761da177e4SLinus Torvalds /* 21771da177e4SLinus Torvalds * a PATHCONF request 21781da177e4SLinus Torvalds */ 21798687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 21801da177e4SLinus Torvalds { 21811da177e4SLinus Torvalds struct xdr_stream xdr; 21821da177e4SLinus Torvalds struct compound_hdr hdr = { 218366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21841da177e4SLinus Torvalds }; 21851da177e4SLinus Torvalds 21861da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21870c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21889b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2189cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2190cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2191d017931cSAndy Adamson &hdr); 2192d017931cSAndy Adamson encode_nops(&hdr); 2193cf8cdbe5SAndy Adamson return 0; 21941da177e4SLinus Torvalds } 21951da177e4SLinus Torvalds 21961da177e4SLinus Torvalds /* 21971da177e4SLinus Torvalds * a STATFS request 21981da177e4SLinus Torvalds */ 21998687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 22001da177e4SLinus Torvalds { 22011da177e4SLinus Torvalds struct xdr_stream xdr; 22021da177e4SLinus Torvalds struct compound_hdr hdr = { 220366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22041da177e4SLinus Torvalds }; 22051da177e4SLinus Torvalds 22061da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22070c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22089b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2209cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2210cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2211d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2212d017931cSAndy Adamson encode_nops(&hdr); 2213cf8cdbe5SAndy Adamson return 0; 22141da177e4SLinus Torvalds } 22151da177e4SLinus Torvalds 22161da177e4SLinus Torvalds /* 22171da177e4SLinus Torvalds * GETATTR_BITMAP request 22181da177e4SLinus Torvalds */ 221943652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 222043652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 22211da177e4SLinus Torvalds { 22221da177e4SLinus Torvalds struct xdr_stream xdr; 22231da177e4SLinus Torvalds struct compound_hdr hdr = { 222466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22251da177e4SLinus Torvalds }; 22261da177e4SLinus Torvalds 22271da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22280c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22299b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 223043652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2231cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 22321da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 22331da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2234d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2235d017931cSAndy Adamson encode_nops(&hdr); 2236cf8cdbe5SAndy Adamson return 0; 22371da177e4SLinus Torvalds } 22381da177e4SLinus Torvalds 22391da177e4SLinus Torvalds /* 22401da177e4SLinus Torvalds * a RENEW request 22411da177e4SLinus Torvalds */ 22428687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22431da177e4SLinus Torvalds { 22441da177e4SLinus Torvalds struct xdr_stream xdr; 22451da177e4SLinus Torvalds struct compound_hdr hdr = { 2246d017931cSAndy Adamson .nops = 0, 22471da177e4SLinus Torvalds }; 22481da177e4SLinus Torvalds 22491da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22500c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2251cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2252d017931cSAndy Adamson encode_nops(&hdr); 2253cf8cdbe5SAndy Adamson return 0; 22541da177e4SLinus Torvalds } 22551da177e4SLinus Torvalds 22561da177e4SLinus Torvalds /* 22571da177e4SLinus Torvalds * a SETCLIENTID request 22581da177e4SLinus Torvalds */ 22598687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 22601da177e4SLinus Torvalds { 22611da177e4SLinus Torvalds struct xdr_stream xdr; 22621da177e4SLinus Torvalds struct compound_hdr hdr = { 2263d017931cSAndy Adamson .nops = 0, 22641da177e4SLinus Torvalds }; 22651da177e4SLinus Torvalds 22661da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22670c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2268cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2269d017931cSAndy Adamson encode_nops(&hdr); 2270cf8cdbe5SAndy Adamson return 0; 22711da177e4SLinus Torvalds } 22721da177e4SLinus Torvalds 22731da177e4SLinus Torvalds /* 22741da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 22751da177e4SLinus Torvalds */ 22768687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22771da177e4SLinus Torvalds { 22781da177e4SLinus Torvalds struct xdr_stream xdr; 22791da177e4SLinus Torvalds struct compound_hdr hdr = { 2280d017931cSAndy Adamson .nops = 0, 22811da177e4SLinus Torvalds }; 22821da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 22831da177e4SLinus Torvalds 22841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2286cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 2287cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2288cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2289d017931cSAndy Adamson encode_nops(&hdr); 2290cf8cdbe5SAndy Adamson return 0; 22911da177e4SLinus Torvalds } 22921da177e4SLinus Torvalds 22931da177e4SLinus Torvalds /* 22941da177e4SLinus Torvalds * DELEGRETURN request 22951da177e4SLinus Torvalds */ 22968687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 22971da177e4SLinus Torvalds { 22981da177e4SLinus Torvalds struct xdr_stream xdr; 22991da177e4SLinus Torvalds struct compound_hdr hdr = { 230066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23011da177e4SLinus Torvalds }; 23021da177e4SLinus Torvalds 23031da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23040c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23059b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2306cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2307cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2308cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2309d017931cSAndy Adamson encode_nops(&hdr); 2310cf8cdbe5SAndy Adamson return 0; 23111da177e4SLinus Torvalds } 23121da177e4SLinus Torvalds 23131da177e4SLinus Torvalds /* 2314683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2315683b57b4STrond Myklebust */ 23168687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2317683b57b4STrond Myklebust { 2318683b57b4STrond Myklebust struct xdr_stream xdr; 2319683b57b4STrond Myklebust struct compound_hdr hdr = { 232066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2321683b57b4STrond Myklebust }; 232228f56694SBenny Halevy uint32_t replen; 2323683b57b4STrond Myklebust 2324683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23250c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23269b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2327cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2328cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 232928f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2330cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2331cf8cdbe5SAndy Adamson 233228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2333683b57b4STrond Myklebust 0, PAGE_SIZE); 2334d017931cSAndy Adamson encode_nops(&hdr); 2335cf8cdbe5SAndy Adamson return 0; 2336683b57b4STrond Myklebust } 2337683b57b4STrond Myklebust 233899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 233999fe60d0SBenny Halevy /* 234099fe60d0SBenny Halevy * EXCHANGE_ID request 234199fe60d0SBenny Halevy */ 234299fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 234399fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 234499fe60d0SBenny Halevy { 234599fe60d0SBenny Halevy struct xdr_stream xdr; 234699fe60d0SBenny Halevy struct compound_hdr hdr = { 234799fe60d0SBenny Halevy .minorversion = args->client->cl_minorversion, 234899fe60d0SBenny Halevy }; 234999fe60d0SBenny Halevy 235099fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 235199fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 235299fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 235399fe60d0SBenny Halevy encode_nops(&hdr); 235499fe60d0SBenny Halevy return 0; 235599fe60d0SBenny Halevy } 23562050f0ccSAndy Adamson 23572050f0ccSAndy Adamson /* 2358fc931582SAndy Adamson * a CREATE_SESSION request 2359fc931582SAndy Adamson */ 2360fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2361fc931582SAndy Adamson struct nfs41_create_session_args *args) 2362fc931582SAndy Adamson { 2363fc931582SAndy Adamson struct xdr_stream xdr; 2364fc931582SAndy Adamson struct compound_hdr hdr = { 2365fc931582SAndy Adamson .minorversion = args->client->cl_minorversion, 2366fc931582SAndy Adamson }; 2367fc931582SAndy Adamson 2368fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2369fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2370fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2371fc931582SAndy Adamson encode_nops(&hdr); 2372fc931582SAndy Adamson return 0; 2373fc931582SAndy Adamson } 2374fc931582SAndy Adamson 2375fc931582SAndy Adamson /* 23760f3e66c6SAndy Adamson * a DESTROY_SESSION request 23770f3e66c6SAndy Adamson */ 23780f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 23790f3e66c6SAndy Adamson struct nfs4_session *session) 23800f3e66c6SAndy Adamson { 23810f3e66c6SAndy Adamson struct xdr_stream xdr; 23820f3e66c6SAndy Adamson struct compound_hdr hdr = { 23830f3e66c6SAndy Adamson .minorversion = session->clp->cl_minorversion, 23840f3e66c6SAndy Adamson }; 23850f3e66c6SAndy Adamson 23860f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23870f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 23880f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 23890f3e66c6SAndy Adamson encode_nops(&hdr); 23900f3e66c6SAndy Adamson return 0; 23910f3e66c6SAndy Adamson } 23920f3e66c6SAndy Adamson 23930f3e66c6SAndy Adamson /* 23942050f0ccSAndy Adamson * a GET_LEASE_TIME request 23952050f0ccSAndy Adamson */ 23962050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 23972050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 23982050f0ccSAndy Adamson { 23992050f0ccSAndy Adamson struct xdr_stream xdr; 24002050f0ccSAndy Adamson struct compound_hdr hdr = { 24012050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 24022050f0ccSAndy Adamson }; 24032050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24042050f0ccSAndy Adamson 24052050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24062050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24072050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 24082050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 24092050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 24102050f0ccSAndy Adamson encode_nops(&hdr); 24112050f0ccSAndy Adamson return 0; 24122050f0ccSAndy Adamson } 241399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 241499fe60d0SBenny Halevy 2415683b57b4STrond Myklebust /* 24161da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 24171da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 24181da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 24191da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 24201da177e4SLinus Torvalds * 24211da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 24221da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 24231da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 24241da177e4SLinus Torvalds */ 24251da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 24261da177e4SLinus Torvalds #define READ64(x) do { \ 24271da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 24281da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 24291da177e4SLinus Torvalds } while (0) 24301da177e4SLinus Torvalds #define READTIME(x) do { \ 24311da177e4SLinus Torvalds p++; \ 24321da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 24331da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 24341da177e4SLinus Torvalds } while (0) 24351da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 24361da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 24371da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 24381da177e4SLinus Torvalds } while (0) 24391da177e4SLinus Torvalds 24401da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 24411da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2442e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2443fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 24443110ff80SHarvey Harrison " buffer\n", __func__); \ 2445fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 24463110ff80SHarvey Harrison __func__, xdr->p, nbytes, xdr->end); \ 24471da177e4SLinus Torvalds return -EIO; \ 24481da177e4SLinus Torvalds } \ 24491da177e4SLinus Torvalds } while (0) 24501da177e4SLinus Torvalds 2451683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 24521da177e4SLinus Torvalds { 24538687b63aSAl Viro __be32 *p; 24541da177e4SLinus Torvalds 24551da177e4SLinus Torvalds READ_BUF(4); 24561da177e4SLinus Torvalds READ32(*len); 24571da177e4SLinus Torvalds READ_BUF(*len); 24581da177e4SLinus Torvalds *string = (char *)p; 24591da177e4SLinus Torvalds return 0; 24601da177e4SLinus Torvalds } 24611da177e4SLinus Torvalds 24621da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 24631da177e4SLinus Torvalds { 24648687b63aSAl Viro __be32 *p; 24651da177e4SLinus Torvalds 24661da177e4SLinus Torvalds READ_BUF(8); 24671da177e4SLinus Torvalds READ32(hdr->status); 24681da177e4SLinus Torvalds READ32(hdr->taglen); 24691da177e4SLinus Torvalds 24701da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 24711da177e4SLinus Torvalds hdr->tag = (char *)p; 24721da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 24731da177e4SLinus Torvalds READ32(hdr->nops); 2474aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2475aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 24761da177e4SLinus Torvalds return 0; 24771da177e4SLinus Torvalds } 24781da177e4SLinus Torvalds 24791da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 24801da177e4SLinus Torvalds { 24818687b63aSAl Viro __be32 *p; 24821da177e4SLinus Torvalds uint32_t opnum; 24831da177e4SLinus Torvalds int32_t nfserr; 24841da177e4SLinus Torvalds 24851da177e4SLinus Torvalds READ_BUF(8); 24861da177e4SLinus Torvalds READ32(opnum); 24871da177e4SLinus Torvalds if (opnum != expected) { 2488fe82a183SChuck Lever dprintk("nfs: Server returned operation" 24891da177e4SLinus Torvalds " %d but we issued a request for %d\n", 24901da177e4SLinus Torvalds opnum, expected); 24911da177e4SLinus Torvalds return -EIO; 24921da177e4SLinus Torvalds } 24931da177e4SLinus Torvalds READ32(nfserr); 24941da177e4SLinus Torvalds if (nfserr != NFS_OK) 2495856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 24961da177e4SLinus Torvalds return 0; 24971da177e4SLinus Torvalds } 24981da177e4SLinus Torvalds 24991da177e4SLinus Torvalds /* Dummy routine */ 2500adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 25011da177e4SLinus Torvalds { 25028687b63aSAl Viro __be32 *p; 2503683b57b4STrond Myklebust unsigned int strlen; 25041da177e4SLinus Torvalds char *str; 25051da177e4SLinus Torvalds 25061da177e4SLinus Torvalds READ_BUF(12); 25071da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 25081da177e4SLinus Torvalds } 25091da177e4SLinus Torvalds 25101da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 25111da177e4SLinus Torvalds { 25128687b63aSAl Viro uint32_t bmlen; 25138687b63aSAl Viro __be32 *p; 25141da177e4SLinus Torvalds 25151da177e4SLinus Torvalds READ_BUF(4); 25161da177e4SLinus Torvalds READ32(bmlen); 25171da177e4SLinus Torvalds 25181da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 25191da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 25201da177e4SLinus Torvalds if (bmlen > 0) { 25211da177e4SLinus Torvalds READ32(bitmap[0]); 25221da177e4SLinus Torvalds if (bmlen > 1) 25231da177e4SLinus Torvalds READ32(bitmap[1]); 25241da177e4SLinus Torvalds } 25251da177e4SLinus Torvalds return 0; 25261da177e4SLinus Torvalds } 25271da177e4SLinus Torvalds 25288687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 25291da177e4SLinus Torvalds { 25308687b63aSAl Viro __be32 *p; 25311da177e4SLinus Torvalds 25321da177e4SLinus Torvalds READ_BUF(4); 25331da177e4SLinus Torvalds READ32(*attrlen); 25341da177e4SLinus Torvalds *savep = xdr->p; 25351da177e4SLinus Torvalds return 0; 25361da177e4SLinus Torvalds } 25371da177e4SLinus Torvalds 25381da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 25391da177e4SLinus Torvalds { 25401da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 25411da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 25421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 25431da177e4SLinus Torvalds } else 25441da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 254544109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 25461da177e4SLinus Torvalds return 0; 25471da177e4SLinus Torvalds } 25481da177e4SLinus Torvalds 25491da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 25501da177e4SLinus Torvalds { 25518687b63aSAl Viro __be32 *p; 2552409924e4STrond Myklebust int ret = 0; 25531da177e4SLinus Torvalds 25541da177e4SLinus Torvalds *type = 0; 25551da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 25561da177e4SLinus Torvalds return -EIO; 25571da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 25581da177e4SLinus Torvalds READ_BUF(4); 25591da177e4SLinus Torvalds READ32(*type); 25601da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 25613110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 25621da177e4SLinus Torvalds return -EIO; 25631da177e4SLinus Torvalds } 25641da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2565409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 25661da177e4SLinus Torvalds } 2567bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2568409924e4STrond Myklebust return ret; 25691da177e4SLinus Torvalds } 25701da177e4SLinus Torvalds 25711da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 25721da177e4SLinus Torvalds { 25738687b63aSAl Viro __be32 *p; 2574409924e4STrond Myklebust int ret = 0; 25751da177e4SLinus Torvalds 25761da177e4SLinus Torvalds *change = 0; 25771da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 25781da177e4SLinus Torvalds return -EIO; 25791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 25801da177e4SLinus Torvalds READ_BUF(8); 25811da177e4SLinus Torvalds READ64(*change); 25821da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2583409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 25841da177e4SLinus Torvalds } 25853110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 25861da177e4SLinus Torvalds (unsigned long long)*change); 2587409924e4STrond Myklebust return ret; 25881da177e4SLinus Torvalds } 25891da177e4SLinus Torvalds 25901da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 25911da177e4SLinus Torvalds { 25928687b63aSAl Viro __be32 *p; 2593409924e4STrond Myklebust int ret = 0; 25941da177e4SLinus Torvalds 25951da177e4SLinus Torvalds *size = 0; 25961da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 25971da177e4SLinus Torvalds return -EIO; 25981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 25991da177e4SLinus Torvalds READ_BUF(8); 26001da177e4SLinus Torvalds READ64(*size); 26011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2602409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 26031da177e4SLinus Torvalds } 26043110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2605409924e4STrond Myklebust return ret; 26061da177e4SLinus Torvalds } 26071da177e4SLinus Torvalds 26081da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26091da177e4SLinus Torvalds { 26108687b63aSAl Viro __be32 *p; 26111da177e4SLinus Torvalds 26121da177e4SLinus Torvalds *res = 0; 26131da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 26141da177e4SLinus Torvalds return -EIO; 26151da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 26161da177e4SLinus Torvalds READ_BUF(4); 26171da177e4SLinus Torvalds READ32(*res); 26181da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 26191da177e4SLinus Torvalds } 26203110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 26211da177e4SLinus Torvalds return 0; 26221da177e4SLinus Torvalds } 26231da177e4SLinus Torvalds 26241da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26251da177e4SLinus Torvalds { 26268687b63aSAl Viro __be32 *p; 26271da177e4SLinus Torvalds 26281da177e4SLinus Torvalds *res = 0; 26291da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 26301da177e4SLinus Torvalds return -EIO; 26311da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 26321da177e4SLinus Torvalds READ_BUF(4); 26331da177e4SLinus Torvalds READ32(*res); 26341da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 26351da177e4SLinus Torvalds } 26363110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 26371da177e4SLinus Torvalds return 0; 26381da177e4SLinus Torvalds } 26391da177e4SLinus Torvalds 26408b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 26411da177e4SLinus Torvalds { 26428687b63aSAl Viro __be32 *p; 2643409924e4STrond Myklebust int ret = 0; 26441da177e4SLinus Torvalds 26451da177e4SLinus Torvalds fsid->major = 0; 26461da177e4SLinus Torvalds fsid->minor = 0; 26471da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 26481da177e4SLinus Torvalds return -EIO; 26491da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 26501da177e4SLinus Torvalds READ_BUF(16); 26511da177e4SLinus Torvalds READ64(fsid->major); 26521da177e4SLinus Torvalds READ64(fsid->minor); 26531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2654409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 26551da177e4SLinus Torvalds } 26563110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 26571da177e4SLinus Torvalds (unsigned long long)fsid->major, 26581da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2659409924e4STrond Myklebust return ret; 26601da177e4SLinus Torvalds } 26611da177e4SLinus Torvalds 26621da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26631da177e4SLinus Torvalds { 26648687b63aSAl Viro __be32 *p; 26651da177e4SLinus Torvalds 26661da177e4SLinus Torvalds *res = 60; 26671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 26681da177e4SLinus Torvalds return -EIO; 26691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 26701da177e4SLinus Torvalds READ_BUF(4); 26711da177e4SLinus Torvalds READ32(*res); 26721da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 26731da177e4SLinus Torvalds } 26743110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 26751da177e4SLinus Torvalds return 0; 26761da177e4SLinus Torvalds } 26771da177e4SLinus Torvalds 26781da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26791da177e4SLinus Torvalds { 26808687b63aSAl Viro __be32 *p; 26811da177e4SLinus Torvalds 26821da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 26831da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 26841da177e4SLinus Torvalds return -EIO; 26851da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 26861da177e4SLinus Torvalds READ_BUF(4); 26871da177e4SLinus Torvalds READ32(*res); 26881da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 26891da177e4SLinus Torvalds } 26903110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 26911da177e4SLinus Torvalds return 0; 26921da177e4SLinus Torvalds } 26931da177e4SLinus Torvalds 26941da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 26951da177e4SLinus Torvalds { 26968687b63aSAl Viro __be32 *p; 2697409924e4STrond Myklebust int ret = 0; 26981da177e4SLinus Torvalds 26991da177e4SLinus Torvalds *fileid = 0; 27001da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 27011da177e4SLinus Torvalds return -EIO; 27021da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 27031da177e4SLinus Torvalds READ_BUF(8); 27041da177e4SLinus Torvalds READ64(*fileid); 27051da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2706409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 27071da177e4SLinus Torvalds } 27083110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2709409924e4STrond Myklebust return ret; 27101da177e4SLinus Torvalds } 27111da177e4SLinus Torvalds 271299baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 271399baf625SManoj Naik { 27148687b63aSAl Viro __be32 *p; 2715409924e4STrond Myklebust int ret = 0; 271699baf625SManoj Naik 271799baf625SManoj Naik *fileid = 0; 271899baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 271999baf625SManoj Naik return -EIO; 272099baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 272199baf625SManoj Naik READ_BUF(8); 272299baf625SManoj Naik READ64(*fileid); 272399baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2724409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 272599baf625SManoj Naik } 27263110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2727409924e4STrond Myklebust return ret; 272899baf625SManoj Naik } 272999baf625SManoj Naik 27301da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27311da177e4SLinus Torvalds { 27328687b63aSAl Viro __be32 *p; 27331da177e4SLinus Torvalds int status = 0; 27341da177e4SLinus Torvalds 27351da177e4SLinus Torvalds *res = 0; 27361da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 27371da177e4SLinus Torvalds return -EIO; 27381da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 27391da177e4SLinus Torvalds READ_BUF(8); 27401da177e4SLinus Torvalds READ64(*res); 27411da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 27421da177e4SLinus Torvalds } 27433110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 27441da177e4SLinus Torvalds return status; 27451da177e4SLinus Torvalds } 27461da177e4SLinus Torvalds 27471da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27481da177e4SLinus Torvalds { 27498687b63aSAl Viro __be32 *p; 27501da177e4SLinus Torvalds int status = 0; 27511da177e4SLinus Torvalds 27521da177e4SLinus Torvalds *res = 0; 27531da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 27541da177e4SLinus Torvalds return -EIO; 27551da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 27561da177e4SLinus Torvalds READ_BUF(8); 27571da177e4SLinus Torvalds READ64(*res); 27581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 27591da177e4SLinus Torvalds } 27603110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 27611da177e4SLinus Torvalds return status; 27621da177e4SLinus Torvalds } 27631da177e4SLinus Torvalds 27641da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27651da177e4SLinus Torvalds { 27668687b63aSAl Viro __be32 *p; 27671da177e4SLinus Torvalds int status = 0; 27681da177e4SLinus Torvalds 27691da177e4SLinus Torvalds *res = 0; 27701da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 27711da177e4SLinus Torvalds return -EIO; 27721da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 27731da177e4SLinus Torvalds READ_BUF(8); 27741da177e4SLinus Torvalds READ64(*res); 27751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 27761da177e4SLinus Torvalds } 27773110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 27781da177e4SLinus Torvalds return status; 27791da177e4SLinus Torvalds } 27801da177e4SLinus Torvalds 27817aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 27827aaa0b3bSManoj Naik { 2783464ad6b1SChuck Lever u32 n; 27848687b63aSAl Viro __be32 *p; 27857aaa0b3bSManoj Naik int status = 0; 27867aaa0b3bSManoj Naik 27877aaa0b3bSManoj Naik READ_BUF(4); 27887aaa0b3bSManoj Naik READ32(n); 278933a43f28SAndy Adamson if (n == 0) 279033a43f28SAndy Adamson goto root_path; 27917aaa0b3bSManoj Naik dprintk("path "); 27927aaa0b3bSManoj Naik path->ncomponents = 0; 27937aaa0b3bSManoj Naik while (path->ncomponents < n) { 27947aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 27957aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 27967aaa0b3bSManoj Naik if (unlikely(status != 0)) 27977aaa0b3bSManoj Naik goto out_eio; 27987aaa0b3bSManoj Naik if (path->ncomponents != n) 27997aaa0b3bSManoj Naik dprintk("/"); 28007aaa0b3bSManoj Naik dprintk("%s", component->data); 28017aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 28027aaa0b3bSManoj Naik path->ncomponents++; 28037aaa0b3bSManoj Naik else { 28047aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 28057aaa0b3bSManoj Naik goto out_eio; 28067aaa0b3bSManoj Naik } 28077aaa0b3bSManoj Naik } 28087aaa0b3bSManoj Naik out: 28097aaa0b3bSManoj Naik dprintk("\n"); 28107aaa0b3bSManoj Naik return status; 281133a43f28SAndy Adamson root_path: 281233a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 281333a43f28SAndy Adamson path->ncomponents = 1; 281433a43f28SAndy Adamson path->components[0].len=0; 281533a43f28SAndy Adamson path->components[0].data=NULL; 281633a43f28SAndy Adamson dprintk("path /\n"); 281733a43f28SAndy Adamson goto out; 28187aaa0b3bSManoj Naik out_eio: 28197aaa0b3bSManoj Naik dprintk(" status %d", status); 28207aaa0b3bSManoj Naik status = -EIO; 28217aaa0b3bSManoj Naik goto out; 28227aaa0b3bSManoj Naik } 28237aaa0b3bSManoj Naik 28247aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2825683b57b4STrond Myklebust { 2826683b57b4STrond Myklebust int n; 28278687b63aSAl Viro __be32 *p; 2828683b57b4STrond Myklebust int status = -EIO; 2829683b57b4STrond Myklebust 2830683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2831683b57b4STrond Myklebust goto out; 2832683b57b4STrond Myklebust status = 0; 2833683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2834683b57b4STrond Myklebust goto out; 28353110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 28367aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2837683b57b4STrond Myklebust if (unlikely(status != 0)) 2838683b57b4STrond Myklebust goto out; 2839683b57b4STrond Myklebust READ_BUF(4); 2840683b57b4STrond Myklebust READ32(n); 2841683b57b4STrond Myklebust if (n <= 0) 2842683b57b4STrond Myklebust goto out_eio; 2843683b57b4STrond Myklebust res->nlocations = 0; 2844683b57b4STrond Myklebust while (res->nlocations < n) { 2845464ad6b1SChuck Lever u32 m; 28467aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2847683b57b4STrond Myklebust 28487aaa0b3bSManoj Naik READ_BUF(4); 28497aaa0b3bSManoj Naik READ32(m); 28507aaa0b3bSManoj Naik 28517aaa0b3bSManoj Naik loc->nservers = 0; 28523110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 28537aaa0b3bSManoj Naik while (loc->nservers < m) { 28547aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 28557aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2856683b57b4STrond Myklebust if (unlikely(status != 0)) 2857683b57b4STrond Myklebust goto out_eio; 28587aaa0b3bSManoj Naik dprintk("%s ", server->data); 28597aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 28607aaa0b3bSManoj Naik loc->nservers++; 28617aaa0b3bSManoj Naik else { 2862464ad6b1SChuck Lever unsigned int i; 2863464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2864464ad6b1SChuck Lever "returned for location %u\n", 28653110ff80SHarvey Harrison __func__, 2866464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2867464ad6b1SChuck Lever m, res->nlocations); 28687aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 28692e42c3e2STrond Myklebust unsigned int len; 28707aaa0b3bSManoj Naik char *data; 28717aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2872683b57b4STrond Myklebust if (unlikely(status != 0)) 2873683b57b4STrond Myklebust goto out_eio; 28747aaa0b3bSManoj Naik } 28757aaa0b3bSManoj Naik } 28767aaa0b3bSManoj Naik } 28777aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 28787aaa0b3bSManoj Naik if (unlikely(status != 0)) 28797aaa0b3bSManoj Naik goto out_eio; 28807aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2881683b57b4STrond Myklebust res->nlocations++; 2882683b57b4STrond Myklebust } 2883409924e4STrond Myklebust if (res->nlocations != 0) 2884409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 2885683b57b4STrond Myklebust out: 28863110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2887683b57b4STrond Myklebust return status; 2888683b57b4STrond Myklebust out_eio: 2889683b57b4STrond Myklebust status = -EIO; 2890683b57b4STrond Myklebust goto out; 2891683b57b4STrond Myklebust } 2892683b57b4STrond Myklebust 28931da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28941da177e4SLinus Torvalds { 28958687b63aSAl Viro __be32 *p; 28961da177e4SLinus Torvalds int status = 0; 28971da177e4SLinus Torvalds 28981da177e4SLinus Torvalds *res = 0; 28991da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 29001da177e4SLinus Torvalds return -EIO; 29011da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 29021da177e4SLinus Torvalds READ_BUF(8); 29031da177e4SLinus Torvalds READ64(*res); 29041da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 29051da177e4SLinus Torvalds } 29063110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 29071da177e4SLinus Torvalds return status; 29081da177e4SLinus Torvalds } 29091da177e4SLinus Torvalds 29101da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 29111da177e4SLinus Torvalds { 29128687b63aSAl Viro __be32 *p; 29131da177e4SLinus Torvalds int status = 0; 29141da177e4SLinus Torvalds 29151da177e4SLinus Torvalds *maxlink = 1; 29161da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 29171da177e4SLinus Torvalds return -EIO; 29181da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 29191da177e4SLinus Torvalds READ_BUF(4); 29201da177e4SLinus Torvalds READ32(*maxlink); 29211da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 29221da177e4SLinus Torvalds } 29233110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 29241da177e4SLinus Torvalds return status; 29251da177e4SLinus Torvalds } 29261da177e4SLinus Torvalds 29271da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 29281da177e4SLinus Torvalds { 29298687b63aSAl Viro __be32 *p; 29301da177e4SLinus Torvalds int status = 0; 29311da177e4SLinus Torvalds 29321da177e4SLinus Torvalds *maxname = 1024; 29331da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 29341da177e4SLinus Torvalds return -EIO; 29351da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 29361da177e4SLinus Torvalds READ_BUF(4); 29371da177e4SLinus Torvalds READ32(*maxname); 29381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 29391da177e4SLinus Torvalds } 29403110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 29411da177e4SLinus Torvalds return status; 29421da177e4SLinus Torvalds } 29431da177e4SLinus Torvalds 29441da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29451da177e4SLinus Torvalds { 29468687b63aSAl Viro __be32 *p; 29471da177e4SLinus Torvalds int status = 0; 29481da177e4SLinus Torvalds 29491da177e4SLinus Torvalds *res = 1024; 29501da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 29511da177e4SLinus Torvalds return -EIO; 29521da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 29531da177e4SLinus Torvalds uint64_t maxread; 29541da177e4SLinus Torvalds READ_BUF(8); 29551da177e4SLinus Torvalds READ64(maxread); 29561da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 29571da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 29581da177e4SLinus Torvalds *res = (uint32_t)maxread; 29591da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 29601da177e4SLinus Torvalds } 29613110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 29621da177e4SLinus Torvalds return status; 29631da177e4SLinus Torvalds } 29641da177e4SLinus Torvalds 29651da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29661da177e4SLinus Torvalds { 29678687b63aSAl Viro __be32 *p; 29681da177e4SLinus Torvalds int status = 0; 29691da177e4SLinus Torvalds 29701da177e4SLinus Torvalds *res = 1024; 29711da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 29721da177e4SLinus Torvalds return -EIO; 29731da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 29741da177e4SLinus Torvalds uint64_t maxwrite; 29751da177e4SLinus Torvalds READ_BUF(8); 29761da177e4SLinus Torvalds READ64(maxwrite); 29771da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 29781da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 29791da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 29801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 29811da177e4SLinus Torvalds } 29823110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 29831da177e4SLinus Torvalds return status; 29841da177e4SLinus Torvalds } 29851da177e4SLinus Torvalds 2986bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 29871da177e4SLinus Torvalds { 2988bca79478STrond Myklebust uint32_t tmp; 29898687b63aSAl Viro __be32 *p; 2990409924e4STrond Myklebust int ret = 0; 29911da177e4SLinus Torvalds 29921da177e4SLinus Torvalds *mode = 0; 29931da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 29941da177e4SLinus Torvalds return -EIO; 29951da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 29961da177e4SLinus Torvalds READ_BUF(4); 2997bca79478STrond Myklebust READ32(tmp); 2998bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 29991da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3000409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 30011da177e4SLinus Torvalds } 30023110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3003409924e4STrond Myklebust return ret; 30041da177e4SLinus Torvalds } 30051da177e4SLinus Torvalds 30061da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 30071da177e4SLinus Torvalds { 30088687b63aSAl Viro __be32 *p; 3009409924e4STrond Myklebust int ret = 0; 30101da177e4SLinus Torvalds 30111da177e4SLinus Torvalds *nlink = 1; 30121da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 30131da177e4SLinus Torvalds return -EIO; 30141da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 30151da177e4SLinus Torvalds READ_BUF(4); 30161da177e4SLinus Torvalds READ32(*nlink); 30171da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3018409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 30191da177e4SLinus Torvalds } 30203110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3021409924e4STrond Myklebust return ret; 30221da177e4SLinus Torvalds } 30231da177e4SLinus Torvalds 30242e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 30251da177e4SLinus Torvalds { 30268687b63aSAl Viro uint32_t len; 30278687b63aSAl Viro __be32 *p; 3028409924e4STrond Myklebust int ret = 0; 30291da177e4SLinus Torvalds 30301da177e4SLinus Torvalds *uid = -2; 30311da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 30321da177e4SLinus Torvalds return -EIO; 30331da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 30341da177e4SLinus Torvalds READ_BUF(4); 30351da177e4SLinus Torvalds READ32(len); 30361da177e4SLinus Torvalds READ_BUF(len); 30371da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3038409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3039409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3040409924e4STrond Myklebust else 30411da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 30423110ff80SHarvey Harrison __func__); 30431da177e4SLinus Torvalds } else 3044fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 30453110ff80SHarvey Harrison __func__, len); 30461da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 30471da177e4SLinus Torvalds } 30483110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3049409924e4STrond Myklebust return ret; 30501da177e4SLinus Torvalds } 30511da177e4SLinus Torvalds 30522e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 30531da177e4SLinus Torvalds { 30548687b63aSAl Viro uint32_t len; 30558687b63aSAl Viro __be32 *p; 3056409924e4STrond Myklebust int ret = 0; 30571da177e4SLinus Torvalds 30581da177e4SLinus Torvalds *gid = -2; 30591da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 30601da177e4SLinus Torvalds return -EIO; 30611da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 30621da177e4SLinus Torvalds READ_BUF(4); 30631da177e4SLinus Torvalds READ32(len); 30641da177e4SLinus Torvalds READ_BUF(len); 30651da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3066409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3067409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3068409924e4STrond Myklebust else 30691da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 30703110ff80SHarvey Harrison __func__); 30711da177e4SLinus Torvalds } else 3072fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 30733110ff80SHarvey Harrison __func__, len); 30741da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 30751da177e4SLinus Torvalds } 30763110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3077409924e4STrond Myklebust return ret; 30781da177e4SLinus Torvalds } 30791da177e4SLinus Torvalds 30801da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 30811da177e4SLinus Torvalds { 30828687b63aSAl Viro uint32_t major = 0, minor = 0; 30838687b63aSAl Viro __be32 *p; 3084409924e4STrond Myklebust int ret = 0; 30851da177e4SLinus Torvalds 30861da177e4SLinus Torvalds *rdev = MKDEV(0,0); 30871da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 30881da177e4SLinus Torvalds return -EIO; 30891da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 30901da177e4SLinus Torvalds dev_t tmp; 30911da177e4SLinus Torvalds 30921da177e4SLinus Torvalds READ_BUF(8); 30931da177e4SLinus Torvalds READ32(major); 30941da177e4SLinus Torvalds READ32(minor); 30951da177e4SLinus Torvalds tmp = MKDEV(major, minor); 30961da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 30971da177e4SLinus Torvalds *rdev = tmp; 30981da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3099409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 31001da177e4SLinus Torvalds } 31013110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3102409924e4STrond Myklebust return ret; 31031da177e4SLinus Torvalds } 31041da177e4SLinus Torvalds 31051da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31061da177e4SLinus Torvalds { 31078687b63aSAl Viro __be32 *p; 31081da177e4SLinus Torvalds int status = 0; 31091da177e4SLinus Torvalds 31101da177e4SLinus Torvalds *res = 0; 31111da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 31121da177e4SLinus Torvalds return -EIO; 31131da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 31141da177e4SLinus Torvalds READ_BUF(8); 31151da177e4SLinus Torvalds READ64(*res); 31161da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 31171da177e4SLinus Torvalds } 31183110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 31191da177e4SLinus Torvalds return status; 31201da177e4SLinus Torvalds } 31211da177e4SLinus Torvalds 31221da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31231da177e4SLinus Torvalds { 31248687b63aSAl Viro __be32 *p; 31251da177e4SLinus Torvalds int status = 0; 31261da177e4SLinus Torvalds 31271da177e4SLinus Torvalds *res = 0; 31281da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 31291da177e4SLinus Torvalds return -EIO; 31301da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 31311da177e4SLinus Torvalds READ_BUF(8); 31321da177e4SLinus Torvalds READ64(*res); 31331da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 31341da177e4SLinus Torvalds } 31353110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 31361da177e4SLinus Torvalds return status; 31371da177e4SLinus Torvalds } 31381da177e4SLinus Torvalds 31391da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31401da177e4SLinus Torvalds { 31418687b63aSAl Viro __be32 *p; 31421da177e4SLinus Torvalds int status = 0; 31431da177e4SLinus Torvalds 31441da177e4SLinus Torvalds *res = 0; 31451da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 31461da177e4SLinus Torvalds return -EIO; 31471da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 31481da177e4SLinus Torvalds READ_BUF(8); 31491da177e4SLinus Torvalds READ64(*res); 31501da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 31511da177e4SLinus Torvalds } 31523110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 31531da177e4SLinus Torvalds return status; 31541da177e4SLinus Torvalds } 31551da177e4SLinus Torvalds 31561da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 31571da177e4SLinus Torvalds { 31588687b63aSAl Viro __be32 *p; 3159409924e4STrond Myklebust int ret = 0; 31601da177e4SLinus Torvalds 31611da177e4SLinus Torvalds *used = 0; 31621da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 31631da177e4SLinus Torvalds return -EIO; 31641da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 31651da177e4SLinus Torvalds READ_BUF(8); 31661da177e4SLinus Torvalds READ64(*used); 31671da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3168409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 31691da177e4SLinus Torvalds } 31703110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 31711da177e4SLinus Torvalds (unsigned long long)*used); 3172409924e4STrond Myklebust return ret; 31731da177e4SLinus Torvalds } 31741da177e4SLinus Torvalds 31751da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 31761da177e4SLinus Torvalds { 31778687b63aSAl Viro __be32 *p; 31781da177e4SLinus Torvalds uint64_t sec; 31791da177e4SLinus Torvalds uint32_t nsec; 31801da177e4SLinus Torvalds 31811da177e4SLinus Torvalds READ_BUF(12); 31821da177e4SLinus Torvalds READ64(sec); 31831da177e4SLinus Torvalds READ32(nsec); 31841da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 31851da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 31861da177e4SLinus Torvalds return 0; 31871da177e4SLinus Torvalds } 31881da177e4SLinus Torvalds 31891da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 31901da177e4SLinus Torvalds { 31911da177e4SLinus Torvalds int status = 0; 31921da177e4SLinus Torvalds 31931da177e4SLinus Torvalds time->tv_sec = 0; 31941da177e4SLinus Torvalds time->tv_nsec = 0; 31951da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 31961da177e4SLinus Torvalds return -EIO; 31971da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 31981da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3199409924e4STrond Myklebust if (status == 0) 3200409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 32011da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 32021da177e4SLinus Torvalds } 32033110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 32041da177e4SLinus Torvalds return status; 32051da177e4SLinus Torvalds } 32061da177e4SLinus Torvalds 32071da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32081da177e4SLinus Torvalds { 32091da177e4SLinus Torvalds int status = 0; 32101da177e4SLinus Torvalds 32111da177e4SLinus Torvalds time->tv_sec = 0; 32121da177e4SLinus Torvalds time->tv_nsec = 0; 32131da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 32141da177e4SLinus Torvalds return -EIO; 32151da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 32161da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3217409924e4STrond Myklebust if (status == 0) 3218409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 32191da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 32201da177e4SLinus Torvalds } 32213110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 32221da177e4SLinus Torvalds return status; 32231da177e4SLinus Torvalds } 32241da177e4SLinus Torvalds 32251da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32261da177e4SLinus Torvalds { 32271da177e4SLinus Torvalds int status = 0; 32281da177e4SLinus Torvalds 32291da177e4SLinus Torvalds time->tv_sec = 0; 32301da177e4SLinus Torvalds time->tv_nsec = 0; 32311da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 32321da177e4SLinus Torvalds return -EIO; 32331da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 32341da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3235409924e4STrond Myklebust if (status == 0) 3236409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 32371da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 32381da177e4SLinus Torvalds } 32393110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 32401da177e4SLinus Torvalds return status; 32411da177e4SLinus Torvalds } 32421da177e4SLinus Torvalds 32438687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 32441da177e4SLinus Torvalds { 32451da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 32461da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 32471da177e4SLinus Torvalds 32481da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3249fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3250fe82a183SChuck Lever "%u %c %u\n", 32513110ff80SHarvey Harrison __func__, 32521da177e4SLinus Torvalds attrwords << 2, 32531da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 32541da177e4SLinus Torvalds nwords << 2); 32551da177e4SLinus Torvalds return -EIO; 32561da177e4SLinus Torvalds } 32571da177e4SLinus Torvalds return 0; 32581da177e4SLinus Torvalds } 32591da177e4SLinus Torvalds 32601da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 32611da177e4SLinus Torvalds { 32628687b63aSAl Viro __be32 *p; 32631da177e4SLinus Torvalds 32641da177e4SLinus Torvalds READ_BUF(20); 32651da177e4SLinus Torvalds READ32(cinfo->atomic); 32661da177e4SLinus Torvalds READ64(cinfo->before); 32671da177e4SLinus Torvalds READ64(cinfo->after); 32681da177e4SLinus Torvalds return 0; 32691da177e4SLinus Torvalds } 32701da177e4SLinus Torvalds 32711da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 32721da177e4SLinus Torvalds { 32738687b63aSAl Viro __be32 *p; 32741da177e4SLinus Torvalds uint32_t supp, acc; 32751da177e4SLinus Torvalds int status; 32761da177e4SLinus Torvalds 32771da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 32781da177e4SLinus Torvalds if (status) 32791da177e4SLinus Torvalds return status; 32801da177e4SLinus Torvalds READ_BUF(8); 32811da177e4SLinus Torvalds READ32(supp); 32821da177e4SLinus Torvalds READ32(acc); 32831da177e4SLinus Torvalds access->supported = supp; 32841da177e4SLinus Torvalds access->access = acc; 32851da177e4SLinus Torvalds return 0; 32861da177e4SLinus Torvalds } 32871da177e4SLinus Torvalds 32881da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 32891da177e4SLinus Torvalds { 32908687b63aSAl Viro __be32 *p; 32911da177e4SLinus Torvalds int status; 32921da177e4SLinus Torvalds 32931da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3294c1d51931STrond Myklebust if (status != -EIO) 3295c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 32961da177e4SLinus Torvalds if (status) 32971da177e4SLinus Torvalds return status; 32988ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 32998ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33001da177e4SLinus Torvalds return 0; 33011da177e4SLinus Torvalds } 33021da177e4SLinus Torvalds 33031da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 33041da177e4SLinus Torvalds { 33058687b63aSAl Viro __be32 *p; 33061da177e4SLinus Torvalds int status; 33071da177e4SLinus Torvalds 33081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 33091da177e4SLinus Torvalds if (status) 33101da177e4SLinus Torvalds return status; 33111da177e4SLinus Torvalds READ_BUF(8); 33121da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 33131da177e4SLinus Torvalds return 0; 33141da177e4SLinus Torvalds } 33151da177e4SLinus Torvalds 33161da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 33171da177e4SLinus Torvalds { 33188687b63aSAl Viro __be32 *p; 33191da177e4SLinus Torvalds uint32_t bmlen; 33201da177e4SLinus Torvalds int status; 33211da177e4SLinus Torvalds 33221da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 33231da177e4SLinus Torvalds if (status) 33241da177e4SLinus Torvalds return status; 33251da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 33261da177e4SLinus Torvalds return status; 33271da177e4SLinus Torvalds READ_BUF(4); 33281da177e4SLinus Torvalds READ32(bmlen); 33291da177e4SLinus Torvalds READ_BUF(bmlen << 2); 33301da177e4SLinus Torvalds return 0; 33311da177e4SLinus Torvalds } 33321da177e4SLinus Torvalds 33331da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 33341da177e4SLinus Torvalds { 33358687b63aSAl Viro __be32 *savep; 33366c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 33371da177e4SLinus Torvalds int status; 33381da177e4SLinus Torvalds 33391da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 33401da177e4SLinus Torvalds goto xdr_error; 33411da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 33421da177e4SLinus Torvalds goto xdr_error; 33431da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 33441da177e4SLinus Torvalds goto xdr_error; 33451da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 33461da177e4SLinus Torvalds goto xdr_error; 33471da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 33481da177e4SLinus Torvalds goto xdr_error; 33491da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 33501da177e4SLinus Torvalds goto xdr_error; 33511da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 33521da177e4SLinus Torvalds goto xdr_error; 33531da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 33541da177e4SLinus Torvalds xdr_error: 33553110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 33561da177e4SLinus Torvalds return status; 33571da177e4SLinus Torvalds } 33581da177e4SLinus Torvalds 33591da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 33601da177e4SLinus Torvalds { 33618687b63aSAl Viro __be32 *savep; 33626c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 33631da177e4SLinus Torvalds int status; 33641da177e4SLinus Torvalds 33651da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 33661da177e4SLinus Torvalds goto xdr_error; 33671da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 33681da177e4SLinus Torvalds goto xdr_error; 33691da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 33701da177e4SLinus Torvalds goto xdr_error; 33711da177e4SLinus Torvalds 33721da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 33731da177e4SLinus Torvalds goto xdr_error; 33741da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 33751da177e4SLinus Torvalds goto xdr_error; 33761da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 33771da177e4SLinus Torvalds goto xdr_error; 33781da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 33791da177e4SLinus Torvalds goto xdr_error; 33801da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 33811da177e4SLinus Torvalds goto xdr_error; 33821da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 33831da177e4SLinus Torvalds goto xdr_error; 33841da177e4SLinus Torvalds 33851da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 33861da177e4SLinus Torvalds xdr_error: 33873110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 33881da177e4SLinus Torvalds return status; 33891da177e4SLinus Torvalds } 33901da177e4SLinus Torvalds 33911da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 33921da177e4SLinus Torvalds { 33938687b63aSAl Viro __be32 *savep; 33946c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 33951da177e4SLinus Torvalds int status; 33961da177e4SLinus Torvalds 33971da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 33981da177e4SLinus Torvalds goto xdr_error; 33991da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 34001da177e4SLinus Torvalds goto xdr_error; 34011da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 34021da177e4SLinus Torvalds goto xdr_error; 34031da177e4SLinus Torvalds 34041da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 34051da177e4SLinus Torvalds goto xdr_error; 34061da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 34071da177e4SLinus Torvalds goto xdr_error; 34081da177e4SLinus Torvalds 34091da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34101da177e4SLinus Torvalds xdr_error: 34113110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34121da177e4SLinus Torvalds return status; 34131da177e4SLinus Torvalds } 34141da177e4SLinus Torvalds 34151da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 34161da177e4SLinus Torvalds { 34178687b63aSAl Viro __be32 *savep; 34181da177e4SLinus Torvalds uint32_t attrlen, 34191da177e4SLinus Torvalds bitmap[2] = {0}, 34201da177e4SLinus Torvalds type; 3421bca79478STrond Myklebust int status; 3422bca79478STrond Myklebust umode_t fmode = 0; 342399baf625SManoj Naik uint64_t fileid; 34241da177e4SLinus Torvalds 3425f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3426f26c7a78STrond Myklebust if (status < 0) 34271da177e4SLinus Torvalds goto xdr_error; 34281da177e4SLinus Torvalds 3429f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3430f26c7a78STrond Myklebust if (status < 0) 3431f26c7a78STrond Myklebust goto xdr_error; 3432f26c7a78STrond Myklebust 3433f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3434f26c7a78STrond Myklebust if (status < 0) 34351da177e4SLinus Torvalds goto xdr_error; 34361da177e4SLinus Torvalds 34371da177e4SLinus Torvalds 3438f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3439f26c7a78STrond Myklebust if (status < 0) 34401da177e4SLinus Torvalds goto xdr_error; 3441409924e4STrond Myklebust fattr->mode = 0; 3442409924e4STrond Myklebust if (status != 0) { 3443409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3444409924e4STrond Myklebust fattr->valid |= status; 3445409924e4STrond Myklebust } 34461da177e4SLinus Torvalds 3447f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3448f26c7a78STrond Myklebust if (status < 0) 34491da177e4SLinus Torvalds goto xdr_error; 3450409924e4STrond Myklebust fattr->valid |= status; 3451f26c7a78STrond Myklebust 3452f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3453f26c7a78STrond Myklebust if (status < 0) 34541da177e4SLinus Torvalds goto xdr_error; 3455409924e4STrond Myklebust fattr->valid |= status; 3456f26c7a78STrond Myklebust 3457f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3458f26c7a78STrond Myklebust if (status < 0) 34591da177e4SLinus Torvalds goto xdr_error; 3460409924e4STrond Myklebust fattr->valid |= status; 3461f26c7a78STrond Myklebust 3462f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3463f26c7a78STrond Myklebust if (status < 0) 34641da177e4SLinus Torvalds goto xdr_error; 3465409924e4STrond Myklebust fattr->valid |= status; 3466f26c7a78STrond Myklebust 3467f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 34687aaa0b3bSManoj Naik struct nfs4_fs_locations, 3469f26c7a78STrond Myklebust fattr)); 3470f26c7a78STrond Myklebust if (status < 0) 3471683b57b4STrond Myklebust goto xdr_error; 3472409924e4STrond Myklebust fattr->valid |= status; 3473f26c7a78STrond Myklebust 3474f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3475f26c7a78STrond Myklebust if (status < 0) 34761da177e4SLinus Torvalds goto xdr_error; 3477409924e4STrond Myklebust if (status != 0) { 34781da177e4SLinus Torvalds fattr->mode |= fmode; 3479409924e4STrond Myklebust fattr->valid |= status; 3480409924e4STrond Myklebust } 3481f26c7a78STrond Myklebust 3482f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3483f26c7a78STrond Myklebust if (status < 0) 34841da177e4SLinus Torvalds goto xdr_error; 3485409924e4STrond Myklebust fattr->valid |= status; 3486f26c7a78STrond Myklebust 3487f26c7a78STrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); 3488f26c7a78STrond Myklebust if (status < 0) 34891da177e4SLinus Torvalds goto xdr_error; 3490409924e4STrond Myklebust fattr->valid |= status; 3491f26c7a78STrond Myklebust 3492f26c7a78STrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); 3493f26c7a78STrond Myklebust if (status < 0) 34941da177e4SLinus Torvalds goto xdr_error; 3495409924e4STrond Myklebust fattr->valid |= status; 3496f26c7a78STrond Myklebust 3497f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3498f26c7a78STrond Myklebust if (status < 0) 34991da177e4SLinus Torvalds goto xdr_error; 3500409924e4STrond Myklebust fattr->valid |= status; 3501f26c7a78STrond Myklebust 3502f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3503f26c7a78STrond Myklebust if (status < 0) 35041da177e4SLinus Torvalds goto xdr_error; 3505409924e4STrond Myklebust fattr->valid |= status; 3506f26c7a78STrond Myklebust 3507f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3508f26c7a78STrond Myklebust if (status < 0) 35091da177e4SLinus Torvalds goto xdr_error; 3510409924e4STrond Myklebust fattr->valid |= status; 3511f26c7a78STrond Myklebust 3512f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3513f26c7a78STrond Myklebust if (status < 0) 35141da177e4SLinus Torvalds goto xdr_error; 3515409924e4STrond Myklebust fattr->valid |= status; 3516f26c7a78STrond Myklebust 3517f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3518f26c7a78STrond Myklebust if (status < 0) 35191da177e4SLinus Torvalds goto xdr_error; 3520409924e4STrond Myklebust fattr->valid |= status; 3521f26c7a78STrond Myklebust 3522f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3523f26c7a78STrond Myklebust if (status < 0) 352499baf625SManoj Naik goto xdr_error; 3525409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 352699baf625SManoj Naik fattr->fileid = fileid; 3527409924e4STrond Myklebust fattr->valid |= status; 3528409924e4STrond Myklebust } 3529f26c7a78STrond Myklebust 3530f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 35311da177e4SLinus Torvalds xdr_error: 35323110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 35331da177e4SLinus Torvalds return status; 35341da177e4SLinus Torvalds } 35351da177e4SLinus Torvalds 35361da177e4SLinus Torvalds 35371da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 35381da177e4SLinus Torvalds { 35398687b63aSAl Viro __be32 *savep; 35401da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 35411da177e4SLinus Torvalds int status; 35421da177e4SLinus Torvalds 35431da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 35441da177e4SLinus Torvalds goto xdr_error; 35451da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 35461da177e4SLinus Torvalds goto xdr_error; 35471da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 35481da177e4SLinus Torvalds goto xdr_error; 35491da177e4SLinus Torvalds 35501da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 35511da177e4SLinus Torvalds 35521da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 35531da177e4SLinus Torvalds goto xdr_error; 35541da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 35551da177e4SLinus Torvalds goto xdr_error; 35561da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 35571da177e4SLinus Torvalds goto xdr_error; 35581da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 35591da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 35601da177e4SLinus Torvalds goto xdr_error; 35611da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 35621da177e4SLinus Torvalds 35631da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 35641da177e4SLinus Torvalds xdr_error: 35653110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 35661da177e4SLinus Torvalds return status; 35671da177e4SLinus Torvalds } 35681da177e4SLinus Torvalds 35691da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 35701da177e4SLinus Torvalds { 35718687b63aSAl Viro __be32 *p; 35721da177e4SLinus Torvalds uint32_t len; 35731da177e4SLinus Torvalds int status; 35741da177e4SLinus Torvalds 35759936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 35769936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 35779936781dSTrond Myklebust 35781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 35791da177e4SLinus Torvalds if (status) 35801da177e4SLinus Torvalds return status; 35811da177e4SLinus Torvalds 35821da177e4SLinus Torvalds READ_BUF(4); 35831da177e4SLinus Torvalds READ32(len); 35841da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 35851da177e4SLinus Torvalds return -EIO; 35861da177e4SLinus Torvalds fh->size = len; 35871da177e4SLinus Torvalds READ_BUF(len); 35881da177e4SLinus Torvalds COPYMEM(fh->data, len); 35891da177e4SLinus Torvalds return 0; 35901da177e4SLinus Torvalds } 35911da177e4SLinus Torvalds 35921da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35931da177e4SLinus Torvalds { 35941da177e4SLinus Torvalds int status; 35951da177e4SLinus Torvalds 35961da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 35971da177e4SLinus Torvalds if (status) 35981da177e4SLinus Torvalds return status; 35991da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 36001da177e4SLinus Torvalds } 36011da177e4SLinus Torvalds 36021da177e4SLinus Torvalds /* 36031da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 36041da177e4SLinus Torvalds */ 3605911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 36061da177e4SLinus Torvalds { 3607911d1aafSTrond Myklebust uint64_t offset, length, clientid; 36088687b63aSAl Viro __be32 *p; 3609911d1aafSTrond Myklebust uint32_t namelen, type; 36101da177e4SLinus Torvalds 36111da177e4SLinus Torvalds READ_BUF(32); 3612911d1aafSTrond Myklebust READ64(offset); 3613911d1aafSTrond Myklebust READ64(length); 3614911d1aafSTrond Myklebust READ32(type); 3615911d1aafSTrond Myklebust if (fl != NULL) { 3616911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3617911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3618911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3619911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3620911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3621911d1aafSTrond Myklebust if (type & 1) 3622911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3623911d1aafSTrond Myklebust fl->fl_pid = 0; 3624911d1aafSTrond Myklebust } 3625911d1aafSTrond Myklebust READ64(clientid); 36261da177e4SLinus Torvalds READ32(namelen); 36271da177e4SLinus Torvalds READ_BUF(namelen); 36281da177e4SLinus Torvalds return -NFS4ERR_DENIED; 36291da177e4SLinus Torvalds } 36301da177e4SLinus Torvalds 3631911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 36321da177e4SLinus Torvalds { 36338687b63aSAl Viro __be32 *p; 36341da177e4SLinus Torvalds int status; 36351da177e4SLinus Torvalds 36361da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3637c1d51931STrond Myklebust if (status == -EIO) 3638c1d51931STrond Myklebust goto out; 36391da177e4SLinus Torvalds if (status == 0) { 36408ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 36418ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 36421da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3643c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3644c1d51931STrond Myklebust if (res->open_seqid != NULL) 3645c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3646c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3647c1d51931STrond Myklebust out: 36481da177e4SLinus Torvalds return status; 36491da177e4SLinus Torvalds } 36501da177e4SLinus Torvalds 3651911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 36521da177e4SLinus Torvalds { 36531da177e4SLinus Torvalds int status; 36541da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 36551da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3656911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 36571da177e4SLinus Torvalds return status; 36581da177e4SLinus Torvalds } 36591da177e4SLinus Torvalds 3660911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 36611da177e4SLinus Torvalds { 36628687b63aSAl Viro __be32 *p; 36631da177e4SLinus Torvalds int status; 36641da177e4SLinus Torvalds 36651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3666c1d51931STrond Myklebust if (status != -EIO) 3667c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 36681da177e4SLinus Torvalds if (status == 0) { 36698ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 36708ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 36711da177e4SLinus Torvalds } 36721da177e4SLinus Torvalds return status; 36731da177e4SLinus Torvalds } 36741da177e4SLinus Torvalds 36751da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 36761da177e4SLinus Torvalds { 36771da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 36781da177e4SLinus Torvalds } 36791da177e4SLinus Torvalds 36801da177e4SLinus Torvalds /* This is too sick! */ 36811da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 36821da177e4SLinus Torvalds { 36838687b63aSAl Viro __be32 *p; 36841da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 36851da177e4SLinus Torvalds 36861da177e4SLinus Torvalds READ_BUF(12); 36871da177e4SLinus Torvalds READ32(limit_type); 36881da177e4SLinus Torvalds switch (limit_type) { 36891da177e4SLinus Torvalds case 1: 36901da177e4SLinus Torvalds READ64(*maxsize); 36911da177e4SLinus Torvalds break; 36921da177e4SLinus Torvalds case 2: 36931da177e4SLinus Torvalds READ32(nblocks); 36941da177e4SLinus Torvalds READ32(blocksize); 36951da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 36961da177e4SLinus Torvalds } 36971da177e4SLinus Torvalds return 0; 36981da177e4SLinus Torvalds } 36991da177e4SLinus Torvalds 37001da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 37011da177e4SLinus Torvalds { 37028687b63aSAl Viro __be32 *p; 37031da177e4SLinus Torvalds uint32_t delegation_type; 37041da177e4SLinus Torvalds 37051da177e4SLinus Torvalds READ_BUF(4); 37061da177e4SLinus Torvalds READ32(delegation_type); 37071da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 37081da177e4SLinus Torvalds res->delegation_type = 0; 37091da177e4SLinus Torvalds return 0; 37101da177e4SLinus Torvalds } 37118ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 37128ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 37131da177e4SLinus Torvalds READ32(res->do_recall); 371405d564feSAndy Adamson 37151da177e4SLinus Torvalds switch (delegation_type) { 37161da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 37171da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 37181da177e4SLinus Torvalds break; 37191da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 37201da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 37211da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 37221da177e4SLinus Torvalds return -EIO; 37231da177e4SLinus Torvalds } 37247539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 37251da177e4SLinus Torvalds } 37261da177e4SLinus Torvalds 37271da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 37281da177e4SLinus Torvalds { 37298687b63aSAl Viro __be32 *p; 3730aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 37311da177e4SLinus Torvalds int status; 37321da177e4SLinus Torvalds 37331da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 3734c1d51931STrond Myklebust if (status != -EIO) 3735c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 37361da177e4SLinus Torvalds if (status) 37371da177e4SLinus Torvalds return status; 37388ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37398ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37401da177e4SLinus Torvalds 37411da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 37421da177e4SLinus Torvalds 37431da177e4SLinus Torvalds READ_BUF(8); 37441da177e4SLinus Torvalds READ32(res->rflags); 37451da177e4SLinus Torvalds READ32(bmlen); 37461da177e4SLinus Torvalds if (bmlen > 10) 37471da177e4SLinus Torvalds goto xdr_error; 37481da177e4SLinus Torvalds 37491da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3750aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3751aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3752aa53ed54SJeff Layton READ32(res->attrset[i]); 3753aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3754aa53ed54SJeff Layton res->attrset[i] = 0; 3755aa53ed54SJeff Layton 37561da177e4SLinus Torvalds return decode_delegation(xdr, res); 37571da177e4SLinus Torvalds xdr_error: 37583110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 37591da177e4SLinus Torvalds return -EIO; 37601da177e4SLinus Torvalds } 37611da177e4SLinus Torvalds 37621da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 37631da177e4SLinus Torvalds { 37648687b63aSAl Viro __be32 *p; 37651da177e4SLinus Torvalds int status; 37661da177e4SLinus Torvalds 37671da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 3768c1d51931STrond Myklebust if (status != -EIO) 3769c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 37701da177e4SLinus Torvalds if (status) 37711da177e4SLinus Torvalds return status; 37728ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37738ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37741da177e4SLinus Torvalds return 0; 37751da177e4SLinus Torvalds } 37761da177e4SLinus Torvalds 37771da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 37781da177e4SLinus Torvalds { 37798687b63aSAl Viro __be32 *p; 37801da177e4SLinus Torvalds int status; 37811da177e4SLinus Torvalds 37821da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 3783c1d51931STrond Myklebust if (status != -EIO) 3784c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 37851da177e4SLinus Torvalds if (status) 37861da177e4SLinus Torvalds return status; 37878ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37888ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37891da177e4SLinus Torvalds return 0; 37901da177e4SLinus Torvalds } 37911da177e4SLinus Torvalds 37921da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 37931da177e4SLinus Torvalds { 37941da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 37951da177e4SLinus Torvalds } 37961da177e4SLinus Torvalds 37971da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 37981da177e4SLinus Torvalds { 37991da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 38001da177e4SLinus Torvalds } 38011da177e4SLinus Torvalds 38021da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 38031da177e4SLinus Torvalds { 38041da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 38058687b63aSAl Viro __be32 *p; 38061da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 38071da177e4SLinus Torvalds int status; 38081da177e4SLinus Torvalds 38091da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 38101da177e4SLinus Torvalds if (status) 38111da177e4SLinus Torvalds return status; 38121da177e4SLinus Torvalds READ_BUF(8); 38131da177e4SLinus Torvalds READ32(eof); 38141da177e4SLinus Torvalds READ32(count); 38151da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 38161da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 38171da177e4SLinus Torvalds if (count > recvd) { 3818fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 38191da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 38201da177e4SLinus Torvalds count = recvd; 38211da177e4SLinus Torvalds eof = 0; 38221da177e4SLinus Torvalds } 38231da177e4SLinus Torvalds xdr_read_pages(xdr, count); 38241da177e4SLinus Torvalds res->eof = eof; 38251da177e4SLinus Torvalds res->count = count; 38261da177e4SLinus Torvalds return 0; 38271da177e4SLinus Torvalds } 38281da177e4SLinus Torvalds 38291da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 38301da177e4SLinus Torvalds { 38311da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 38321da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 38331da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3834bcecff77SChuck Lever size_t hdrlen; 3835bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 38368687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 38377bda2cdfSJeff Layton unsigned int nr = 0; 3838bcecff77SChuck Lever int status; 38391da177e4SLinus Torvalds 38401da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 38411da177e4SLinus Torvalds if (status) 38421da177e4SLinus Torvalds return status; 38431da177e4SLinus Torvalds READ_BUF(8); 38441da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 384544109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 384644109241SFred Isaman __func__, 3847eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3848eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3849eadf4598STrond Myklebust 38501da177e4SLinus Torvalds 38511da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 38521da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 38531da177e4SLinus Torvalds if (pglen > recvd) 38541da177e4SLinus Torvalds pglen = recvd; 38551da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 38561da177e4SLinus Torvalds 38571da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 38588687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3859e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 38601da177e4SLinus Torvalds entry = p; 38617bda2cdfSJeff Layton 38627bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 38637bda2cdfSJeff Layton if ((entry + 1) > end) 38647bda2cdfSJeff Layton goto short_pkt; 38657bda2cdfSJeff Layton 38667bda2cdfSJeff Layton for (; *p++; nr++) { 3867bcecff77SChuck Lever u32 len, attrlen, xlen; 3868e8896495SDavid Howells if (end - p < 3) 38691da177e4SLinus Torvalds goto short_pkt; 3870eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 38711da177e4SLinus Torvalds p += 2; /* cookie */ 38721da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 38731da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3874fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3875fe82a183SChuck Lever len); 38761da177e4SLinus Torvalds goto err_unmap; 38771da177e4SLinus Torvalds } 3878e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3879e8896495SDavid Howells if (end - p < xlen + 1) 3880e8896495SDavid Howells goto short_pkt; 3881eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3882e8896495SDavid Howells p += xlen; 38831da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3884e8896495SDavid Howells if (end - p < len + 1) 3885e8896495SDavid Howells goto short_pkt; 38861da177e4SLinus Torvalds p += len; 38871da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3888e8896495SDavid Howells if (end - p < attrlen + 2) 38891da177e4SLinus Torvalds goto short_pkt; 3890e8896495SDavid Howells p += attrlen; /* attributes */ 38911da177e4SLinus Torvalds entry = p; 38921da177e4SLinus Torvalds } 38937bda2cdfSJeff Layton /* 38947bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 38957bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 38967bda2cdfSJeff Layton * those, just set the EOF marker. 38977bda2cdfSJeff Layton */ 38987bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 38997bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 39007bda2cdfSJeff Layton entry[1] = 1; 39017bda2cdfSJeff Layton } 39021da177e4SLinus Torvalds out: 39031da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39041da177e4SLinus Torvalds return 0; 39051da177e4SLinus Torvalds short_pkt: 39067bda2cdfSJeff Layton /* 39077bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 39087bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 39097bda2cdfSJeff Layton * response and return what we have so far. If there are no 39107bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 39117bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 39127bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 39137bda2cdfSJeff Layton * readdir starting at the last cookie. 39147bda2cdfSJeff Layton */ 39153110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 39161da177e4SLinus Torvalds entry[0] = entry[1] = 0; 39177bda2cdfSJeff Layton if (nr) 39181da177e4SLinus Torvalds goto out; 39191da177e4SLinus Torvalds err_unmap: 39201da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39211da177e4SLinus Torvalds return -errno_NFSERR_IO; 39221da177e4SLinus Torvalds } 39231da177e4SLinus Torvalds 39241da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 39251da177e4SLinus Torvalds { 39261da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 39271da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3928bcecff77SChuck Lever size_t hdrlen; 3929bcecff77SChuck Lever u32 len, recvd; 39308687b63aSAl Viro __be32 *p; 39311da177e4SLinus Torvalds char *kaddr; 39321da177e4SLinus Torvalds int status; 39331da177e4SLinus Torvalds 39341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 39351da177e4SLinus Torvalds if (status) 39361da177e4SLinus Torvalds return status; 39371da177e4SLinus Torvalds 39381da177e4SLinus Torvalds /* Convert length of symlink */ 39391da177e4SLinus Torvalds READ_BUF(4); 39401da177e4SLinus Torvalds READ32(len); 39411da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3942fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 39431da177e4SLinus Torvalds return -ENAMETOOLONG; 39441da177e4SLinus Torvalds } 39451da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 39461da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 39471da177e4SLinus Torvalds if (recvd < len) { 3948fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 39491da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 39501da177e4SLinus Torvalds return -EIO; 39511da177e4SLinus Torvalds } 39521da177e4SLinus Torvalds xdr_read_pages(xdr, len); 39531da177e4SLinus Torvalds /* 39541da177e4SLinus Torvalds * The XDR encode routine has set things up so that 39551da177e4SLinus Torvalds * the link text will be copied directly into the 39561da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 39571da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 39581da177e4SLinus Torvalds * null-termination). 39591da177e4SLinus Torvalds */ 39601da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 39611da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 39621da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39631da177e4SLinus Torvalds return 0; 39641da177e4SLinus Torvalds } 39651da177e4SLinus Torvalds 39661da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 39671da177e4SLinus Torvalds { 39681da177e4SLinus Torvalds int status; 39691da177e4SLinus Torvalds 39701da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 39711da177e4SLinus Torvalds if (status) 39721da177e4SLinus Torvalds goto out; 39731da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 39741da177e4SLinus Torvalds out: 39751da177e4SLinus Torvalds return status; 39761da177e4SLinus Torvalds } 39771da177e4SLinus Torvalds 39781da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 39791da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 39801da177e4SLinus Torvalds { 39811da177e4SLinus Torvalds int status; 39821da177e4SLinus Torvalds 39831da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 39841da177e4SLinus Torvalds if (status) 39851da177e4SLinus Torvalds goto out; 39861da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 39871da177e4SLinus Torvalds goto out; 39881da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 39891da177e4SLinus Torvalds out: 39901da177e4SLinus Torvalds return status; 39911da177e4SLinus Torvalds } 39921da177e4SLinus Torvalds 39931da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 39941da177e4SLinus Torvalds { 39951da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 39961da177e4SLinus Torvalds } 39971da177e4SLinus Torvalds 399856ae19f3STrond Myklebust static int 399956ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 400056ae19f3STrond Myklebust { 400156ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 400256ae19f3STrond Myklebust } 400356ae19f3STrond Myklebust 4004029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4005029d105eSJ. Bruce Fields size_t *acl_len) 4006029d105eSJ. Bruce Fields { 40078687b63aSAl Viro __be32 *savep; 4008029d105eSJ. Bruce Fields uint32_t attrlen, 4009029d105eSJ. Bruce Fields bitmap[2] = {0}; 4010029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4011029d105eSJ. Bruce Fields int status; 4012029d105eSJ. Bruce Fields 4013029d105eSJ. Bruce Fields *acl_len = 0; 4014029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4015029d105eSJ. Bruce Fields goto out; 4016029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4017029d105eSJ. Bruce Fields goto out; 4018029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4019029d105eSJ. Bruce Fields goto out; 4020029d105eSJ. Bruce Fields 4021029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4022029d105eSJ. Bruce Fields return -EIO; 4023029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4024bcecff77SChuck Lever size_t hdrlen; 4025bcecff77SChuck Lever u32 recvd; 4026029d105eSJ. Bruce Fields 4027029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4028029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4029029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4030029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4031029d105eSJ. Bruce Fields if (attrlen > recvd) { 4032fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4033029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4034029d105eSJ. Bruce Fields attrlen, recvd); 4035029d105eSJ. Bruce Fields return -EINVAL; 4036029d105eSJ. Bruce Fields } 4037029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4038029d105eSJ. Bruce Fields *acl_len = attrlen; 40398c233cf9SJ. Bruce Fields } else 40408c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4041029d105eSJ. Bruce Fields 4042029d105eSJ. Bruce Fields out: 4043029d105eSJ. Bruce Fields return status; 4044029d105eSJ. Bruce Fields } 4045029d105eSJ. Bruce Fields 40461da177e4SLinus Torvalds static int 40471da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 40481da177e4SLinus Torvalds { 40491da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 40501da177e4SLinus Torvalds } 40511da177e4SLinus Torvalds 40529e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 40531da177e4SLinus Torvalds { 40548687b63aSAl Viro __be32 *p; 40551da177e4SLinus Torvalds uint32_t bmlen; 40561da177e4SLinus Torvalds int status; 40571da177e4SLinus Torvalds 40581da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 40591da177e4SLinus Torvalds if (status) 40601da177e4SLinus Torvalds return status; 40611da177e4SLinus Torvalds READ_BUF(4); 40621da177e4SLinus Torvalds READ32(bmlen); 40631da177e4SLinus Torvalds READ_BUF(bmlen << 2); 40641da177e4SLinus Torvalds return 0; 40651da177e4SLinus Torvalds } 40661da177e4SLinus Torvalds 4067adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 40681da177e4SLinus Torvalds { 40698687b63aSAl Viro __be32 *p; 40701da177e4SLinus Torvalds uint32_t opnum; 40711da177e4SLinus Torvalds int32_t nfserr; 40721da177e4SLinus Torvalds 40731da177e4SLinus Torvalds READ_BUF(8); 40741da177e4SLinus Torvalds READ32(opnum); 40751da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4076fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 40771da177e4SLinus Torvalds " %d\n", opnum); 40781da177e4SLinus Torvalds return -EIO; 40791da177e4SLinus Torvalds } 40801da177e4SLinus Torvalds READ32(nfserr); 40811da177e4SLinus Torvalds if (nfserr == NFS_OK) { 40828ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 40831da177e4SLinus Torvalds READ64(clp->cl_clientid); 40848ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 40851da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 40861da177e4SLinus Torvalds uint32_t len; 40871da177e4SLinus Torvalds 40881da177e4SLinus Torvalds /* skip netid string */ 40891da177e4SLinus Torvalds READ_BUF(4); 40901da177e4SLinus Torvalds READ32(len); 40911da177e4SLinus Torvalds READ_BUF(len); 40921da177e4SLinus Torvalds 40931da177e4SLinus Torvalds /* skip uaddr string */ 40941da177e4SLinus Torvalds READ_BUF(4); 40951da177e4SLinus Torvalds READ32(len); 40961da177e4SLinus Torvalds READ_BUF(len); 40971da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 40981da177e4SLinus Torvalds } else 4099856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 41001da177e4SLinus Torvalds 41011da177e4SLinus Torvalds return 0; 41021da177e4SLinus Torvalds } 41031da177e4SLinus Torvalds 41041da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 41051da177e4SLinus Torvalds { 41061da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 41071da177e4SLinus Torvalds } 41081da177e4SLinus Torvalds 41091da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 41101da177e4SLinus Torvalds { 41118687b63aSAl Viro __be32 *p; 41121da177e4SLinus Torvalds int status; 41131da177e4SLinus Torvalds 41141da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 41151da177e4SLinus Torvalds if (status) 41161da177e4SLinus Torvalds return status; 41171da177e4SLinus Torvalds 41181da177e4SLinus Torvalds READ_BUF(16); 41191da177e4SLinus Torvalds READ32(res->count); 41201da177e4SLinus Torvalds READ32(res->verf->committed); 41211da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 41221da177e4SLinus Torvalds return 0; 41231da177e4SLinus Torvalds } 41241da177e4SLinus Torvalds 41251da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 41261da177e4SLinus Torvalds { 41271da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 41281da177e4SLinus Torvalds } 41291da177e4SLinus Torvalds 413099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 413199fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 413299fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 413399fe60d0SBenny Halevy { 413499fe60d0SBenny Halevy __be32 *p; 413599fe60d0SBenny Halevy uint32_t dummy; 413699fe60d0SBenny Halevy int status; 413799fe60d0SBenny Halevy struct nfs_client *clp = res->client; 413899fe60d0SBenny Halevy 413999fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 414099fe60d0SBenny Halevy if (status) 414199fe60d0SBenny Halevy return status; 414299fe60d0SBenny Halevy 414399fe60d0SBenny Halevy READ_BUF(8); 414499fe60d0SBenny Halevy READ64(clp->cl_ex_clid); 414599fe60d0SBenny Halevy READ_BUF(12); 414699fe60d0SBenny Halevy READ32(clp->cl_seqid); 414799fe60d0SBenny Halevy READ32(clp->cl_exchange_flags); 414899fe60d0SBenny Halevy 414999fe60d0SBenny Halevy /* We ask for SP4_NONE */ 415099fe60d0SBenny Halevy READ32(dummy); 415199fe60d0SBenny Halevy if (dummy != SP4_NONE) 415299fe60d0SBenny Halevy return -EIO; 415399fe60d0SBenny Halevy 415499fe60d0SBenny Halevy /* Throw away minor_id */ 415599fe60d0SBenny Halevy READ_BUF(8); 415699fe60d0SBenny Halevy 415799fe60d0SBenny Halevy /* Throw away Major id */ 415899fe60d0SBenny Halevy READ_BUF(4); 415999fe60d0SBenny Halevy READ32(dummy); 416099fe60d0SBenny Halevy READ_BUF(dummy); 416199fe60d0SBenny Halevy 416299fe60d0SBenny Halevy /* Throw away server_scope */ 416399fe60d0SBenny Halevy READ_BUF(4); 416499fe60d0SBenny Halevy READ32(dummy); 416599fe60d0SBenny Halevy READ_BUF(dummy); 416699fe60d0SBenny Halevy 416799fe60d0SBenny Halevy /* Throw away Implementation id array */ 416899fe60d0SBenny Halevy READ_BUF(4); 416999fe60d0SBenny Halevy READ32(dummy); 417099fe60d0SBenny Halevy READ_BUF(dummy); 417199fe60d0SBenny Halevy 417299fe60d0SBenny Halevy return 0; 417399fe60d0SBenny Halevy } 4174fc931582SAndy Adamson 4175fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4176fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4177fc931582SAndy Adamson { 4178fc931582SAndy Adamson __be32 *p; 4179fc931582SAndy Adamson u32 nr_attrs; 4180fc931582SAndy Adamson 4181fc931582SAndy Adamson READ_BUF(28); 4182fc931582SAndy Adamson READ32(attrs->headerpadsz); 4183fc931582SAndy Adamson READ32(attrs->max_rqst_sz); 4184fc931582SAndy Adamson READ32(attrs->max_resp_sz); 4185fc931582SAndy Adamson READ32(attrs->max_resp_sz_cached); 4186fc931582SAndy Adamson READ32(attrs->max_ops); 4187fc931582SAndy Adamson READ32(attrs->max_reqs); 4188fc931582SAndy Adamson READ32(nr_attrs); 4189fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4190fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4191fc931582SAndy Adamson __func__, nr_attrs); 4192fc931582SAndy Adamson return -EINVAL; 4193fc931582SAndy Adamson } 4194fc931582SAndy Adamson if (nr_attrs == 1) 4195fc931582SAndy Adamson READ_BUF(4); /* skip rdma_attrs */ 4196fc931582SAndy Adamson return 0; 4197fc931582SAndy Adamson } 4198fc931582SAndy Adamson 4199fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4200fc931582SAndy Adamson struct nfs41_create_session_res *res) 4201fc931582SAndy Adamson { 4202fc931582SAndy Adamson __be32 *p; 4203fc931582SAndy Adamson int status; 4204fc931582SAndy Adamson struct nfs_client *clp = res->client; 4205fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4206fc931582SAndy Adamson 4207fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4208fc931582SAndy Adamson 4209fc931582SAndy Adamson if (status) 4210fc931582SAndy Adamson return status; 4211fc931582SAndy Adamson 4212fc931582SAndy Adamson /* sessionid */ 4213fc931582SAndy Adamson READ_BUF(NFS4_MAX_SESSIONID_LEN); 4214fc931582SAndy Adamson COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); 4215fc931582SAndy Adamson 4216fc931582SAndy Adamson /* seqid, flags */ 4217fc931582SAndy Adamson READ_BUF(8); 4218fc931582SAndy Adamson READ32(clp->cl_seqid); 4219fc931582SAndy Adamson READ32(session->flags); 4220fc931582SAndy Adamson 4221fc931582SAndy Adamson /* Channel attributes */ 4222fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4223fc931582SAndy Adamson if (!status) 4224fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4225fc931582SAndy Adamson return status; 4226fc931582SAndy Adamson } 42270f3e66c6SAndy Adamson 42280f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 42290f3e66c6SAndy Adamson { 42300f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 42310f3e66c6SAndy Adamson } 423299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 423399fe60d0SBenny Halevy 42349b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 42359b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 42369b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 42379b7b9fccSAndy Adamson { 42389b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 42399b7b9fccSAndy Adamson if (!res->sr_session) 42409b7b9fccSAndy Adamson return 0; 42419b7b9fccSAndy Adamson 42429b7b9fccSAndy Adamson /* stub */ 42439b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 42449b7b9fccSAndy Adamson 42459b7b9fccSAndy Adamson return 0; 42469b7b9fccSAndy Adamson } 42479b7b9fccSAndy Adamson 42481da177e4SLinus Torvalds /* 424949c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 425049c2559eSBenny Halevy */ 425149c2559eSBenny Halevy 425249c2559eSBenny Halevy /* 42531da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 42541da177e4SLinus Torvalds */ 42558687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 42561da177e4SLinus Torvalds { 42571da177e4SLinus Torvalds struct xdr_stream xdr; 42581da177e4SLinus Torvalds struct compound_hdr hdr; 42591da177e4SLinus Torvalds int status; 42601da177e4SLinus Torvalds 42611da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42621da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42631da177e4SLinus Torvalds if (status) 42641da177e4SLinus Torvalds goto out; 42659b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 42669b7b9fccSAndy Adamson if (status) 42679b7b9fccSAndy Adamson goto out; 42681da177e4SLinus Torvalds status = decode_putfh(&xdr); 42691da177e4SLinus Torvalds if (status) 42701da177e4SLinus Torvalds goto out; 42711da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4272516a6af6STrond Myklebust if (status != 0) 4273516a6af6STrond Myklebust goto out; 4274516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 42751da177e4SLinus Torvalds out: 42761da177e4SLinus Torvalds return status; 42771da177e4SLinus Torvalds } 42781da177e4SLinus Torvalds 42791da177e4SLinus Torvalds /* 42801da177e4SLinus Torvalds * Decode ACCESS response 42811da177e4SLinus Torvalds */ 42828687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 42831da177e4SLinus Torvalds { 42841da177e4SLinus Torvalds struct xdr_stream xdr; 42851da177e4SLinus Torvalds struct compound_hdr hdr; 42861da177e4SLinus Torvalds int status; 42871da177e4SLinus Torvalds 42881da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42899b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 42909b7b9fccSAndy Adamson if (status) 42919b7b9fccSAndy Adamson goto out; 42929b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 42939b7b9fccSAndy Adamson if (status) 42941da177e4SLinus Torvalds goto out; 429576b32999STrond Myklebust status = decode_putfh(&xdr); 429676b32999STrond Myklebust if (status != 0) 429776b32999STrond Myklebust goto out; 42981da177e4SLinus Torvalds status = decode_access(&xdr, res); 429976b32999STrond Myklebust if (status != 0) 430076b32999STrond Myklebust goto out; 430176b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43021da177e4SLinus Torvalds out: 43031da177e4SLinus Torvalds return status; 43041da177e4SLinus Torvalds } 43051da177e4SLinus Torvalds 43061da177e4SLinus Torvalds /* 43071da177e4SLinus Torvalds * Decode LOOKUP response 43081da177e4SLinus Torvalds */ 43098687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 43101da177e4SLinus Torvalds { 43111da177e4SLinus Torvalds struct xdr_stream xdr; 43121da177e4SLinus Torvalds struct compound_hdr hdr; 43131da177e4SLinus Torvalds int status; 43141da177e4SLinus Torvalds 43151da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43169b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 43179b7b9fccSAndy Adamson if (status) 43189b7b9fccSAndy Adamson goto out; 43199b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43209b7b9fccSAndy Adamson if (status) 43211da177e4SLinus Torvalds goto out; 43221da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 43231da177e4SLinus Torvalds goto out; 43241da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 43251da177e4SLinus Torvalds goto out; 43261da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 43271da177e4SLinus Torvalds goto out; 43281da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 43291da177e4SLinus Torvalds out: 43301da177e4SLinus Torvalds return status; 43311da177e4SLinus Torvalds } 43321da177e4SLinus Torvalds 43331da177e4SLinus Torvalds /* 43341da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 43351da177e4SLinus Torvalds */ 43368687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 43371da177e4SLinus Torvalds { 43381da177e4SLinus Torvalds struct xdr_stream xdr; 43391da177e4SLinus Torvalds struct compound_hdr hdr; 43401da177e4SLinus Torvalds int status; 43411da177e4SLinus Torvalds 43421da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43439b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 43449b7b9fccSAndy Adamson if (status) 43459b7b9fccSAndy Adamson goto out; 43469b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43479b7b9fccSAndy Adamson if (status) 43481da177e4SLinus Torvalds goto out; 43491da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 43501da177e4SLinus Torvalds goto out; 43511da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 43521da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 43531da177e4SLinus Torvalds out: 43541da177e4SLinus Torvalds return status; 43551da177e4SLinus Torvalds } 43561da177e4SLinus Torvalds 43571da177e4SLinus Torvalds /* 43581da177e4SLinus Torvalds * Decode REMOVE response 43591da177e4SLinus Torvalds */ 43604fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 43611da177e4SLinus Torvalds { 43621da177e4SLinus Torvalds struct xdr_stream xdr; 43631da177e4SLinus Torvalds struct compound_hdr hdr; 43641da177e4SLinus Torvalds int status; 43651da177e4SLinus Torvalds 43661da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43679b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 43689b7b9fccSAndy Adamson if (status) 43699b7b9fccSAndy Adamson goto out; 43709b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43719b7b9fccSAndy Adamson if (status) 43721da177e4SLinus Torvalds goto out; 437316e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 437416e42959STrond Myklebust goto out; 437516e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 437616e42959STrond Myklebust goto out; 43774fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 43781da177e4SLinus Torvalds out: 43791da177e4SLinus Torvalds return status; 43801da177e4SLinus Torvalds } 43811da177e4SLinus Torvalds 43821da177e4SLinus Torvalds /* 43831da177e4SLinus Torvalds * Decode RENAME response 43841da177e4SLinus Torvalds */ 43858687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 43861da177e4SLinus Torvalds { 43871da177e4SLinus Torvalds struct xdr_stream xdr; 43881da177e4SLinus Torvalds struct compound_hdr hdr; 43891da177e4SLinus Torvalds int status; 43901da177e4SLinus Torvalds 43911da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43929b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 43939b7b9fccSAndy Adamson if (status) 43949b7b9fccSAndy Adamson goto out; 43959b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43969b7b9fccSAndy Adamson if (status) 43971da177e4SLinus Torvalds goto out; 43981da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 43991da177e4SLinus Torvalds goto out; 44001da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 44011da177e4SLinus Torvalds goto out; 44021da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44031da177e4SLinus Torvalds goto out; 44046caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 44056caf2c82STrond Myklebust goto out; 44066caf2c82STrond Myklebust /* Current FH is target directory */ 44076caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 44086caf2c82STrond Myklebust goto out; 44096caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 44106caf2c82STrond Myklebust goto out; 44116caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 44121da177e4SLinus Torvalds out: 44131da177e4SLinus Torvalds return status; 44141da177e4SLinus Torvalds } 44151da177e4SLinus Torvalds 44161da177e4SLinus Torvalds /* 44171da177e4SLinus Torvalds * Decode LINK response 44181da177e4SLinus Torvalds */ 44198687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 44201da177e4SLinus Torvalds { 44211da177e4SLinus Torvalds struct xdr_stream xdr; 44221da177e4SLinus Torvalds struct compound_hdr hdr; 44231da177e4SLinus Torvalds int status; 44241da177e4SLinus Torvalds 44251da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44269b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44279b7b9fccSAndy Adamson if (status) 44289b7b9fccSAndy Adamson goto out; 44299b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44309b7b9fccSAndy Adamson if (status) 44311da177e4SLinus Torvalds goto out; 44321da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44331da177e4SLinus Torvalds goto out; 44341da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 44351da177e4SLinus Torvalds goto out; 44361da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44371da177e4SLinus Torvalds goto out; 443891ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 443991ba2eeeSTrond Myklebust goto out; 444091ba2eeeSTrond Myklebust /* 444191ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 444291ba2eeeSTrond Myklebust * filehandle. 444391ba2eeeSTrond Myklebust */ 444491ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 444591ba2eeeSTrond Myklebust goto out; 444691ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 444791ba2eeeSTrond Myklebust goto out; 444891ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 44491da177e4SLinus Torvalds out: 44501da177e4SLinus Torvalds return status; 44511da177e4SLinus Torvalds } 44521da177e4SLinus Torvalds 44531da177e4SLinus Torvalds /* 44541da177e4SLinus Torvalds * Decode CREATE response 44551da177e4SLinus Torvalds */ 44568687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 44571da177e4SLinus Torvalds { 44581da177e4SLinus Torvalds struct xdr_stream xdr; 44591da177e4SLinus Torvalds struct compound_hdr hdr; 44601da177e4SLinus Torvalds int status; 44611da177e4SLinus Torvalds 44621da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44639b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44649b7b9fccSAndy Adamson if (status) 44659b7b9fccSAndy Adamson goto out; 44669b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44679b7b9fccSAndy Adamson if (status) 44681da177e4SLinus Torvalds goto out; 44691da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44701da177e4SLinus Torvalds goto out; 447156ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 447256ae19f3STrond Myklebust goto out; 44731da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 44741da177e4SLinus Torvalds goto out; 44751da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 44761da177e4SLinus Torvalds goto out; 447756ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 447856ae19f3STrond Myklebust goto out; 447956ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 448056ae19f3STrond Myklebust goto out; 448156ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 44821da177e4SLinus Torvalds out: 44831da177e4SLinus Torvalds return status; 44841da177e4SLinus Torvalds } 44851da177e4SLinus Torvalds 44861da177e4SLinus Torvalds /* 44871da177e4SLinus Torvalds * Decode SYMLINK response 44881da177e4SLinus Torvalds */ 44898687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 44901da177e4SLinus Torvalds { 44911da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 44921da177e4SLinus Torvalds } 44931da177e4SLinus Torvalds 44941da177e4SLinus Torvalds /* 44951da177e4SLinus Torvalds * Decode GETATTR response 44961da177e4SLinus Torvalds */ 44978687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 44981da177e4SLinus Torvalds { 44991da177e4SLinus Torvalds struct xdr_stream xdr; 45001da177e4SLinus Torvalds struct compound_hdr hdr; 45011da177e4SLinus Torvalds int status; 45021da177e4SLinus Torvalds 45031da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45041da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 45051da177e4SLinus Torvalds if (status) 45061da177e4SLinus Torvalds goto out; 45079b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45089b7b9fccSAndy Adamson if (status) 45099b7b9fccSAndy Adamson goto out; 45101da177e4SLinus Torvalds status = decode_putfh(&xdr); 45111da177e4SLinus Torvalds if (status) 45121da177e4SLinus Torvalds goto out; 45131da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 45141da177e4SLinus Torvalds out: 45151da177e4SLinus Torvalds return status; 45161da177e4SLinus Torvalds } 45171da177e4SLinus Torvalds 451823ec6965SJ. Bruce Fields /* 451923ec6965SJ. Bruce Fields * Encode an SETACL request 452023ec6965SJ. Bruce Fields */ 452123ec6965SJ. Bruce Fields static int 45228687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 452323ec6965SJ. Bruce Fields { 452423ec6965SJ. Bruce Fields struct xdr_stream xdr; 452523ec6965SJ. Bruce Fields struct compound_hdr hdr = { 452666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 452723ec6965SJ. Bruce Fields }; 452823ec6965SJ. Bruce Fields int status; 452923ec6965SJ. Bruce Fields 453023ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 45310c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 45329b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 4533cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 4534d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 4535d017931cSAndy Adamson encode_nops(&hdr); 453623ec6965SJ. Bruce Fields return status; 453723ec6965SJ. Bruce Fields } 453805d564feSAndy Adamson 453923ec6965SJ. Bruce Fields /* 454023ec6965SJ. Bruce Fields * Decode SETACL response 454123ec6965SJ. Bruce Fields */ 454223ec6965SJ. Bruce Fields static int 454373c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 454473c403a9SBenny Halevy struct nfs_setaclres *res) 454523ec6965SJ. Bruce Fields { 454623ec6965SJ. Bruce Fields struct xdr_stream xdr; 454723ec6965SJ. Bruce Fields struct compound_hdr hdr; 454823ec6965SJ. Bruce Fields int status; 454923ec6965SJ. Bruce Fields 455023ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 455123ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 455223ec6965SJ. Bruce Fields if (status) 455323ec6965SJ. Bruce Fields goto out; 45549b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45559b7b9fccSAndy Adamson if (status) 45569b7b9fccSAndy Adamson goto out; 455723ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 455823ec6965SJ. Bruce Fields if (status) 455923ec6965SJ. Bruce Fields goto out; 45609e9ecc03SBenny Halevy status = decode_setattr(&xdr); 456123ec6965SJ. Bruce Fields out: 456223ec6965SJ. Bruce Fields return status; 456323ec6965SJ. Bruce Fields } 45641da177e4SLinus Torvalds 45651da177e4SLinus Torvalds /* 4566029d105eSJ. Bruce Fields * Decode GETACL response 4567029d105eSJ. Bruce Fields */ 4568029d105eSJ. Bruce Fields static int 4569663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 4570663c79b3SBenny Halevy struct nfs_getaclres *res) 4571029d105eSJ. Bruce Fields { 4572029d105eSJ. Bruce Fields struct xdr_stream xdr; 4573029d105eSJ. Bruce Fields struct compound_hdr hdr; 4574029d105eSJ. Bruce Fields int status; 4575029d105eSJ. Bruce Fields 4576029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4577029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4578029d105eSJ. Bruce Fields if (status) 4579029d105eSJ. Bruce Fields goto out; 45809b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45819b7b9fccSAndy Adamson if (status) 45829b7b9fccSAndy Adamson goto out; 4583029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4584029d105eSJ. Bruce Fields if (status) 4585029d105eSJ. Bruce Fields goto out; 4586663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 4587029d105eSJ. Bruce Fields 4588029d105eSJ. Bruce Fields out: 4589029d105eSJ. Bruce Fields return status; 4590029d105eSJ. Bruce Fields } 4591029d105eSJ. Bruce Fields 4592029d105eSJ. Bruce Fields /* 45931da177e4SLinus Torvalds * Decode CLOSE response 45941da177e4SLinus Torvalds */ 45958687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 45961da177e4SLinus Torvalds { 45971da177e4SLinus Torvalds struct xdr_stream xdr; 45981da177e4SLinus Torvalds struct compound_hdr hdr; 45991da177e4SLinus Torvalds int status; 46001da177e4SLinus Torvalds 46011da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46021da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 46031da177e4SLinus Torvalds if (status) 46041da177e4SLinus Torvalds goto out; 46059b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46069b7b9fccSAndy Adamson if (status) 46079b7b9fccSAndy Adamson goto out; 46081da177e4SLinus Torvalds status = decode_putfh(&xdr); 46091da177e4SLinus Torvalds if (status) 46101da177e4SLinus Torvalds goto out; 46111da177e4SLinus Torvalds status = decode_close(&xdr, res); 4612516a6af6STrond Myklebust if (status != 0) 4613516a6af6STrond Myklebust goto out; 4614516a6af6STrond Myklebust /* 4615516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4616516a6af6STrond Myklebust * in which case the getattr call will fail with 4617516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4618516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4619516a6af6STrond Myklebust */ 4620516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 46211da177e4SLinus Torvalds out: 46221da177e4SLinus Torvalds return status; 46231da177e4SLinus Torvalds } 46241da177e4SLinus Torvalds 46251da177e4SLinus Torvalds /* 46261da177e4SLinus Torvalds * Decode OPEN response 46271da177e4SLinus Torvalds */ 46288687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 46291da177e4SLinus Torvalds { 46301da177e4SLinus Torvalds struct xdr_stream xdr; 46311da177e4SLinus Torvalds struct compound_hdr hdr; 46321da177e4SLinus Torvalds int status; 46331da177e4SLinus Torvalds 46341da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46351da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 46361da177e4SLinus Torvalds if (status) 46371da177e4SLinus Torvalds goto out; 46389b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46399b7b9fccSAndy Adamson if (status) 46409b7b9fccSAndy Adamson goto out; 46411da177e4SLinus Torvalds status = decode_putfh(&xdr); 46421da177e4SLinus Torvalds if (status) 46431da177e4SLinus Torvalds goto out; 464456ae19f3STrond Myklebust status = decode_savefh(&xdr); 464556ae19f3STrond Myklebust if (status) 464656ae19f3STrond Myklebust goto out; 46471da177e4SLinus Torvalds status = decode_open(&xdr, res); 46481da177e4SLinus Torvalds if (status) 46491da177e4SLinus Torvalds goto out; 46509936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 46511da177e4SLinus Torvalds goto out; 465256ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 465356ae19f3STrond Myklebust goto out; 4654365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 465556ae19f3STrond Myklebust goto out; 465656ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 46571da177e4SLinus Torvalds out: 46581da177e4SLinus Torvalds return status; 46591da177e4SLinus Torvalds } 46601da177e4SLinus Torvalds 46611da177e4SLinus Torvalds /* 46621da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 46631da177e4SLinus Torvalds */ 46648687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 46651da177e4SLinus Torvalds { 46661da177e4SLinus Torvalds struct xdr_stream xdr; 46671da177e4SLinus Torvalds struct compound_hdr hdr; 46681da177e4SLinus Torvalds int status; 46691da177e4SLinus Torvalds 46701da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46711da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 46721da177e4SLinus Torvalds if (status) 46731da177e4SLinus Torvalds goto out; 46741da177e4SLinus Torvalds status = decode_putfh(&xdr); 46751da177e4SLinus Torvalds if (status) 46761da177e4SLinus Torvalds goto out; 46771da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 46781da177e4SLinus Torvalds out: 46791da177e4SLinus Torvalds return status; 46801da177e4SLinus Torvalds } 46811da177e4SLinus Torvalds 46821da177e4SLinus Torvalds /* 46831da177e4SLinus Torvalds * Decode OPEN response 46841da177e4SLinus Torvalds */ 46858687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *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_open(&xdr, res); 4702864472e9STrond Myklebust if (status) 4703864472e9STrond Myklebust goto out; 4704864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 47051da177e4SLinus Torvalds out: 47061da177e4SLinus Torvalds return status; 47071da177e4SLinus Torvalds } 47081da177e4SLinus Torvalds 47091da177e4SLinus Torvalds /* 47101da177e4SLinus Torvalds * Decode SETATTR response 47111da177e4SLinus Torvalds */ 47128687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 47131da177e4SLinus Torvalds { 47141da177e4SLinus Torvalds struct xdr_stream xdr; 47151da177e4SLinus Torvalds struct compound_hdr hdr; 47161da177e4SLinus Torvalds int status; 47171da177e4SLinus Torvalds 47181da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47191da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47201da177e4SLinus Torvalds if (status) 47211da177e4SLinus Torvalds goto out; 47229b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47239b7b9fccSAndy Adamson if (status) 47249b7b9fccSAndy Adamson goto out; 47251da177e4SLinus Torvalds status = decode_putfh(&xdr); 47261da177e4SLinus Torvalds if (status) 47271da177e4SLinus Torvalds goto out; 47289e9ecc03SBenny Halevy status = decode_setattr(&xdr); 47291da177e4SLinus Torvalds if (status) 47301da177e4SLinus Torvalds goto out; 473178f945f8STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 47321da177e4SLinus Torvalds out: 47331da177e4SLinus Torvalds return status; 47341da177e4SLinus Torvalds } 47351da177e4SLinus Torvalds 47361da177e4SLinus Torvalds /* 47371da177e4SLinus Torvalds * Decode LOCK response 47381da177e4SLinus Torvalds */ 47398687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 47401da177e4SLinus Torvalds { 47411da177e4SLinus Torvalds struct xdr_stream xdr; 47421da177e4SLinus Torvalds struct compound_hdr hdr; 47431da177e4SLinus Torvalds int status; 47441da177e4SLinus Torvalds 47451da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47461da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47471da177e4SLinus Torvalds if (status) 47481da177e4SLinus Torvalds goto out; 47499b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47509b7b9fccSAndy Adamson if (status) 47519b7b9fccSAndy Adamson goto out; 47521da177e4SLinus Torvalds status = decode_putfh(&xdr); 47531da177e4SLinus Torvalds if (status) 47541da177e4SLinus Torvalds goto out; 47551da177e4SLinus Torvalds status = decode_lock(&xdr, res); 47561da177e4SLinus Torvalds out: 47571da177e4SLinus Torvalds return status; 47581da177e4SLinus Torvalds } 47591da177e4SLinus Torvalds 47601da177e4SLinus Torvalds /* 47611da177e4SLinus Torvalds * Decode LOCKT response 47621da177e4SLinus Torvalds */ 47638687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 47641da177e4SLinus Torvalds { 47651da177e4SLinus Torvalds struct xdr_stream xdr; 47661da177e4SLinus Torvalds struct compound_hdr hdr; 47671da177e4SLinus Torvalds int status; 47681da177e4SLinus Torvalds 47691da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47701da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47711da177e4SLinus Torvalds if (status) 47721da177e4SLinus Torvalds goto out; 47739b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47749b7b9fccSAndy Adamson if (status) 47759b7b9fccSAndy Adamson goto out; 47761da177e4SLinus Torvalds status = decode_putfh(&xdr); 47771da177e4SLinus Torvalds if (status) 47781da177e4SLinus Torvalds goto out; 47791da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 47801da177e4SLinus Torvalds out: 47811da177e4SLinus Torvalds return status; 47821da177e4SLinus Torvalds } 47831da177e4SLinus Torvalds 47841da177e4SLinus Torvalds /* 47851da177e4SLinus Torvalds * Decode LOCKU response 47861da177e4SLinus Torvalds */ 47878687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 47881da177e4SLinus Torvalds { 47891da177e4SLinus Torvalds struct xdr_stream xdr; 47901da177e4SLinus Torvalds struct compound_hdr hdr; 47911da177e4SLinus Torvalds int status; 47921da177e4SLinus Torvalds 47931da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47941da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47951da177e4SLinus Torvalds if (status) 47961da177e4SLinus Torvalds goto out; 47979b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47989b7b9fccSAndy Adamson if (status) 47999b7b9fccSAndy Adamson goto out; 48001da177e4SLinus Torvalds status = decode_putfh(&xdr); 48011da177e4SLinus Torvalds if (status) 48021da177e4SLinus Torvalds goto out; 48031da177e4SLinus Torvalds status = decode_locku(&xdr, res); 48041da177e4SLinus Torvalds out: 48051da177e4SLinus Torvalds return status; 48061da177e4SLinus Torvalds } 48071da177e4SLinus Torvalds 48081da177e4SLinus Torvalds /* 48091da177e4SLinus Torvalds * Decode READLINK response 48101da177e4SLinus Torvalds */ 4811f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 4812f50c7000SBenny Halevy struct nfs4_readlink_res *res) 48131da177e4SLinus Torvalds { 48141da177e4SLinus Torvalds struct xdr_stream xdr; 48151da177e4SLinus Torvalds struct compound_hdr hdr; 48161da177e4SLinus Torvalds int status; 48171da177e4SLinus Torvalds 48181da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48191da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48201da177e4SLinus Torvalds if (status) 48211da177e4SLinus Torvalds goto out; 48229b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48239b7b9fccSAndy Adamson if (status) 48249b7b9fccSAndy Adamson goto out; 48251da177e4SLinus Torvalds status = decode_putfh(&xdr); 48261da177e4SLinus Torvalds if (status) 48271da177e4SLinus Torvalds goto out; 48281da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 48291da177e4SLinus Torvalds out: 48301da177e4SLinus Torvalds return status; 48311da177e4SLinus Torvalds } 48321da177e4SLinus Torvalds 48331da177e4SLinus Torvalds /* 48341da177e4SLinus Torvalds * Decode READDIR response 48351da177e4SLinus Torvalds */ 48368687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 48371da177e4SLinus Torvalds { 48381da177e4SLinus Torvalds struct xdr_stream xdr; 48391da177e4SLinus Torvalds struct compound_hdr hdr; 48401da177e4SLinus Torvalds int status; 48411da177e4SLinus Torvalds 48421da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48431da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48441da177e4SLinus Torvalds if (status) 48451da177e4SLinus Torvalds goto out; 48469b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48479b7b9fccSAndy Adamson if (status) 48489b7b9fccSAndy Adamson goto out; 48491da177e4SLinus Torvalds status = decode_putfh(&xdr); 48501da177e4SLinus Torvalds if (status) 48511da177e4SLinus Torvalds goto out; 48521da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 48531da177e4SLinus Torvalds out: 48541da177e4SLinus Torvalds return status; 48551da177e4SLinus Torvalds } 48561da177e4SLinus Torvalds 48571da177e4SLinus Torvalds /* 48581da177e4SLinus Torvalds * Decode Read response 48591da177e4SLinus Torvalds */ 48608687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 48611da177e4SLinus Torvalds { 48621da177e4SLinus Torvalds struct xdr_stream xdr; 48631da177e4SLinus Torvalds struct compound_hdr hdr; 48641da177e4SLinus Torvalds int status; 48651da177e4SLinus Torvalds 48661da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48671da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48681da177e4SLinus Torvalds if (status) 48691da177e4SLinus Torvalds goto out; 48709b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48719b7b9fccSAndy Adamson if (status) 48729b7b9fccSAndy Adamson goto out; 48731da177e4SLinus Torvalds status = decode_putfh(&xdr); 48741da177e4SLinus Torvalds if (status) 48751da177e4SLinus Torvalds goto out; 48761da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 48771da177e4SLinus Torvalds if (!status) 48781da177e4SLinus Torvalds status = res->count; 48791da177e4SLinus Torvalds out: 48801da177e4SLinus Torvalds return status; 48811da177e4SLinus Torvalds } 48821da177e4SLinus Torvalds 48831da177e4SLinus Torvalds /* 48841da177e4SLinus Torvalds * Decode WRITE response 48851da177e4SLinus Torvalds */ 48868687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 48871da177e4SLinus Torvalds { 48881da177e4SLinus Torvalds struct xdr_stream xdr; 48891da177e4SLinus Torvalds struct compound_hdr hdr; 48901da177e4SLinus Torvalds int status; 48911da177e4SLinus Torvalds 48921da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48931da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48941da177e4SLinus Torvalds if (status) 48951da177e4SLinus Torvalds goto out; 48969b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48979b7b9fccSAndy Adamson if (status) 48989b7b9fccSAndy Adamson goto out; 48991da177e4SLinus Torvalds status = decode_putfh(&xdr); 49001da177e4SLinus Torvalds if (status) 49011da177e4SLinus Torvalds goto out; 49021da177e4SLinus Torvalds status = decode_write(&xdr, res); 49034f9838c7STrond Myklebust if (status) 49044f9838c7STrond Myklebust goto out; 49054f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 49061da177e4SLinus Torvalds if (!status) 49071da177e4SLinus Torvalds status = res->count; 49081da177e4SLinus Torvalds out: 49091da177e4SLinus Torvalds return status; 49101da177e4SLinus Torvalds } 49111da177e4SLinus Torvalds 49121da177e4SLinus Torvalds /* 49131da177e4SLinus Torvalds * Decode COMMIT response 49141da177e4SLinus Torvalds */ 49158687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 49161da177e4SLinus Torvalds { 49171da177e4SLinus Torvalds struct xdr_stream xdr; 49181da177e4SLinus Torvalds struct compound_hdr hdr; 49191da177e4SLinus Torvalds int status; 49201da177e4SLinus Torvalds 49211da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49221da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49231da177e4SLinus Torvalds if (status) 49241da177e4SLinus Torvalds goto out; 49259b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49269b7b9fccSAndy Adamson if (status) 49279b7b9fccSAndy Adamson goto out; 49281da177e4SLinus Torvalds status = decode_putfh(&xdr); 49291da177e4SLinus Torvalds if (status) 49301da177e4SLinus Torvalds goto out; 49311da177e4SLinus Torvalds status = decode_commit(&xdr, res); 49324f9838c7STrond Myklebust if (status) 49334f9838c7STrond Myklebust goto out; 49344f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 49351da177e4SLinus Torvalds out: 49361da177e4SLinus Torvalds return status; 49371da177e4SLinus Torvalds } 49381da177e4SLinus Torvalds 49391da177e4SLinus Torvalds /* 49401da177e4SLinus Torvalds * FSINFO request 49411da177e4SLinus Torvalds */ 49423dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 49433dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 49441da177e4SLinus Torvalds { 49451da177e4SLinus Torvalds struct xdr_stream xdr; 49461da177e4SLinus Torvalds struct compound_hdr hdr; 49471da177e4SLinus Torvalds int status; 49481da177e4SLinus Torvalds 49491da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 49501da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49511da177e4SLinus Torvalds if (!status) 49529b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 49539b7b9fccSAndy Adamson if (!status) 49541da177e4SLinus Torvalds status = decode_putfh(&xdr); 49551da177e4SLinus Torvalds if (!status) 49563dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 49571da177e4SLinus Torvalds return status; 49581da177e4SLinus Torvalds } 49591da177e4SLinus Torvalds 49601da177e4SLinus Torvalds /* 49611da177e4SLinus Torvalds * PATHCONF request 49621da177e4SLinus Torvalds */ 4963d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 4964d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 49651da177e4SLinus Torvalds { 49661da177e4SLinus Torvalds struct xdr_stream xdr; 49671da177e4SLinus Torvalds struct compound_hdr hdr; 49681da177e4SLinus Torvalds int status; 49691da177e4SLinus Torvalds 49701da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 49711da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49721da177e4SLinus Torvalds if (!status) 49739b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 49749b7b9fccSAndy Adamson if (!status) 49751da177e4SLinus Torvalds status = decode_putfh(&xdr); 49761da177e4SLinus Torvalds if (!status) 4977d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 49781da177e4SLinus Torvalds return status; 49791da177e4SLinus Torvalds } 49801da177e4SLinus Torvalds 49811da177e4SLinus Torvalds /* 49821da177e4SLinus Torvalds * STATFS request 49831da177e4SLinus Torvalds */ 498424ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 498524ad148aSBenny Halevy struct nfs4_statfs_res *res) 49861da177e4SLinus Torvalds { 49871da177e4SLinus Torvalds struct xdr_stream xdr; 49881da177e4SLinus Torvalds struct compound_hdr hdr; 49891da177e4SLinus Torvalds int status; 49901da177e4SLinus Torvalds 49911da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 49921da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49931da177e4SLinus Torvalds if (!status) 49949b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 49959b7b9fccSAndy Adamson if (!status) 49961da177e4SLinus Torvalds status = decode_putfh(&xdr); 49971da177e4SLinus Torvalds if (!status) 499824ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 49991da177e4SLinus Torvalds return status; 50001da177e4SLinus Torvalds } 50011da177e4SLinus Torvalds 50021da177e4SLinus Torvalds /* 50031da177e4SLinus Torvalds * GETATTR_BITMAP request 50041da177e4SLinus Torvalds */ 50058687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *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, &req->rq_rcv_buf, p); 50129b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 50139b7b9fccSAndy Adamson if (status) 50149b7b9fccSAndy Adamson goto out; 50159b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50169b7b9fccSAndy Adamson if (status) 50171da177e4SLinus Torvalds goto out; 50181da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 50191da177e4SLinus Torvalds goto out; 50201da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 50211da177e4SLinus Torvalds out: 50221da177e4SLinus Torvalds return status; 50231da177e4SLinus Torvalds } 50241da177e4SLinus Torvalds 50251da177e4SLinus Torvalds /* 50261da177e4SLinus Torvalds * Decode RENEW response 50271da177e4SLinus Torvalds */ 50288687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 50291da177e4SLinus Torvalds { 50301da177e4SLinus Torvalds struct xdr_stream xdr; 50311da177e4SLinus Torvalds struct compound_hdr hdr; 50321da177e4SLinus Torvalds int status; 50331da177e4SLinus Torvalds 50341da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50351da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50361da177e4SLinus Torvalds if (!status) 50371da177e4SLinus Torvalds status = decode_renew(&xdr); 50381da177e4SLinus Torvalds return status; 50391da177e4SLinus Torvalds } 50401da177e4SLinus Torvalds 50411da177e4SLinus Torvalds /* 50421da177e4SLinus Torvalds * a SETCLIENTID request 50431da177e4SLinus Torvalds */ 50448687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5045adfa6f98SDavid Howells struct nfs_client *clp) 50461da177e4SLinus Torvalds { 50471da177e4SLinus Torvalds struct xdr_stream xdr; 50481da177e4SLinus Torvalds struct compound_hdr hdr; 50491da177e4SLinus Torvalds int status; 50501da177e4SLinus Torvalds 50511da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50531da177e4SLinus Torvalds if (!status) 50541da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 50551da177e4SLinus Torvalds return status; 50561da177e4SLinus Torvalds } 50571da177e4SLinus Torvalds 50581da177e4SLinus Torvalds /* 50591da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 50601da177e4SLinus Torvalds */ 50618687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 50621da177e4SLinus Torvalds { 50631da177e4SLinus Torvalds struct xdr_stream xdr; 50641da177e4SLinus Torvalds struct compound_hdr hdr; 50651da177e4SLinus Torvalds int status; 50661da177e4SLinus Torvalds 50671da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50681da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50691da177e4SLinus Torvalds if (!status) 50701da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 50711da177e4SLinus Torvalds if (!status) 50721da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 50731da177e4SLinus Torvalds if (!status) 50741da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 50751da177e4SLinus Torvalds return status; 50761da177e4SLinus Torvalds } 50771da177e4SLinus Torvalds 50781da177e4SLinus Torvalds /* 50791da177e4SLinus Torvalds * DELEGRETURN request 50801da177e4SLinus Torvalds */ 50818687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 50821da177e4SLinus Torvalds { 50831da177e4SLinus Torvalds struct xdr_stream xdr; 50841da177e4SLinus Torvalds struct compound_hdr hdr; 50851da177e4SLinus Torvalds int status; 50861da177e4SLinus Torvalds 50871da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50881da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50899b7b9fccSAndy Adamson if (status) 50909b7b9fccSAndy Adamson goto out; 50919b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50929b7b9fccSAndy Adamson if (status) 5093fa178f29STrond Myklebust goto out; 50941da177e4SLinus Torvalds status = decode_putfh(&xdr); 5095fa178f29STrond Myklebust if (status != 0) 5096fa178f29STrond Myklebust goto out; 50971da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5098fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 5099fa178f29STrond Myklebust out: 51001da177e4SLinus Torvalds return status; 51011da177e4SLinus Torvalds } 51021da177e4SLinus Torvalds 5103683b57b4STrond Myklebust /* 5104683b57b4STrond Myklebust * FS_LOCATIONS request 5105683b57b4STrond Myklebust */ 510622958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 510722958463SBenny Halevy struct nfs4_fs_locations_res *res) 5108683b57b4STrond Myklebust { 5109683b57b4STrond Myklebust struct xdr_stream xdr; 5110683b57b4STrond Myklebust struct compound_hdr hdr; 5111683b57b4STrond Myklebust int status; 5112683b57b4STrond Myklebust 5113683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5114683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 51159b7b9fccSAndy Adamson if (status) 51169b7b9fccSAndy Adamson goto out; 51179b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 51189b7b9fccSAndy Adamson if (status) 5119683b57b4STrond Myklebust goto out; 5120683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5121683b57b4STrond Myklebust goto out; 5122683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5123683b57b4STrond Myklebust goto out; 5124683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 512522958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 512622958463SBenny Halevy res->fs_locations->server); 5127683b57b4STrond Myklebust out: 5128683b57b4STrond Myklebust return status; 5129683b57b4STrond Myklebust } 5130683b57b4STrond Myklebust 513199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 513299fe60d0SBenny Halevy /* 513399fe60d0SBenny Halevy * EXCHANGE_ID request 513499fe60d0SBenny Halevy */ 513599fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 513699fe60d0SBenny Halevy void *res) 513799fe60d0SBenny Halevy { 513899fe60d0SBenny Halevy struct xdr_stream xdr; 513999fe60d0SBenny Halevy struct compound_hdr hdr; 514099fe60d0SBenny Halevy int status; 514199fe60d0SBenny Halevy 514299fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 514399fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 514499fe60d0SBenny Halevy if (!status) 514599fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 514699fe60d0SBenny Halevy return status; 514799fe60d0SBenny Halevy } 51482050f0ccSAndy Adamson 51492050f0ccSAndy Adamson /* 5150fc931582SAndy Adamson * a CREATE_SESSION request 5151fc931582SAndy Adamson */ 5152fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5153fc931582SAndy Adamson struct nfs41_create_session_res *res) 5154fc931582SAndy Adamson { 5155fc931582SAndy Adamson struct xdr_stream xdr; 5156fc931582SAndy Adamson struct compound_hdr hdr; 5157fc931582SAndy Adamson int status; 5158fc931582SAndy Adamson 5159fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5160fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5161fc931582SAndy Adamson if (!status) 5162fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5163fc931582SAndy Adamson return status; 5164fc931582SAndy Adamson } 5165fc931582SAndy Adamson 5166fc931582SAndy Adamson /* 51670f3e66c6SAndy Adamson * a DESTROY_SESSION request 51680f3e66c6SAndy Adamson */ 51690f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 51700f3e66c6SAndy Adamson void *dummy) 51710f3e66c6SAndy Adamson { 51720f3e66c6SAndy Adamson struct xdr_stream xdr; 51730f3e66c6SAndy Adamson struct compound_hdr hdr; 51740f3e66c6SAndy Adamson int status; 51750f3e66c6SAndy Adamson 51760f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51770f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 51780f3e66c6SAndy Adamson if (!status) 51790f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 51800f3e66c6SAndy Adamson return status; 51810f3e66c6SAndy Adamson } 51820f3e66c6SAndy Adamson 51830f3e66c6SAndy Adamson /* 51842050f0ccSAndy Adamson * a GET_LEASE_TIME request 51852050f0ccSAndy Adamson */ 51862050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 51872050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 51882050f0ccSAndy Adamson { 51892050f0ccSAndy Adamson struct xdr_stream xdr; 51902050f0ccSAndy Adamson struct compound_hdr hdr; 51912050f0ccSAndy Adamson int status; 51922050f0ccSAndy Adamson 51932050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51942050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 51952050f0ccSAndy Adamson if (!status) 51962050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 51972050f0ccSAndy Adamson if (!status) 51982050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 51992050f0ccSAndy Adamson if (!status) 52002050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 52012050f0ccSAndy Adamson return status; 52022050f0ccSAndy Adamson } 520399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 520499fe60d0SBenny Halevy 52050dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 52061da177e4SLinus Torvalds { 52071da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 52081da177e4SLinus Torvalds uint32_t len; 52091da177e4SLinus Torvalds 52101da177e4SLinus Torvalds if (!*p++) { 52111da177e4SLinus Torvalds if (!*p) 52121da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 52131da177e4SLinus Torvalds entry->eof = 1; 52141da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 52151da177e4SLinus Torvalds } 52161da177e4SLinus Torvalds 52171da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 52181da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 52191da177e4SLinus Torvalds entry->len = ntohl(*p++); 52201da177e4SLinus Torvalds entry->name = (const char *) p; 52211da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 52221da177e4SLinus Torvalds 52231da177e4SLinus Torvalds /* 52241da177e4SLinus Torvalds * In case the server doesn't return an inode number, 52251da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 52261da177e4SLinus Torvalds * since glibc seems to choke on it...) 52271da177e4SLinus Torvalds */ 52281da177e4SLinus Torvalds entry->ino = 1; 52291da177e4SLinus Torvalds 52301da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 52311da177e4SLinus Torvalds if (len-- > 0) { 52321da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 52331da177e4SLinus Torvalds if (len-- > 0) { 52341da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 52351da177e4SLinus Torvalds p += len; 52361da177e4SLinus Torvalds } 52371da177e4SLinus Torvalds } 52381da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 52391da177e4SLinus Torvalds if (len > 0) { 524097d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 524197d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 524297d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 524397d312d0SManoj Naik p++; 524497d312d0SManoj Naik len--; 524597d312d0SManoj Naik } 52461da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 52471da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 52481da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 52491da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 52501da177e4SLinus Torvalds p += len; 52511da177e4SLinus Torvalds } 52521da177e4SLinus Torvalds 52531da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 52541da177e4SLinus Torvalds return p; 52551da177e4SLinus Torvalds } 52561da177e4SLinus Torvalds 52571da177e4SLinus Torvalds /* 52581da177e4SLinus Torvalds * We need to translate between nfs status return values and 52591da177e4SLinus Torvalds * the local errno values which may not be the same. 52601da177e4SLinus Torvalds */ 52611da177e4SLinus Torvalds static struct { 52621da177e4SLinus Torvalds int stat; 52631da177e4SLinus Torvalds int errno; 52641da177e4SLinus Torvalds } nfs_errtbl[] = { 52651da177e4SLinus Torvalds { NFS4_OK, 0 }, 5266856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5267856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5268856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5269856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5270856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5271856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5272856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5273856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5274856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5275856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5276856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5277856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5278856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5279856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5280856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5281856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5282856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5283856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5284856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5285856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5286856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5287856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5288856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5289856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5290856dff3dSBenny Halevy { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, 5291856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5292856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5293856dff3dSBenny Halevy { NFS4ERR_RESOURCE, -EREMOTEIO }, 5294856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5295856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5296856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5297856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 52981da177e4SLinus Torvalds * to be handled by a 52991da177e4SLinus Torvalds * middle-layer. 53001da177e4SLinus Torvalds */ 5301856dff3dSBenny Halevy { -1, -EIO } 53021da177e4SLinus Torvalds }; 53031da177e4SLinus Torvalds 53041da177e4SLinus Torvalds /* 53051da177e4SLinus Torvalds * Convert an NFS error code to a local one. 53061da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 53071da177e4SLinus Torvalds */ 53081da177e4SLinus Torvalds static int 53090a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 53101da177e4SLinus Torvalds { 53111da177e4SLinus Torvalds int i; 53121da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 53131da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 53141da177e4SLinus Torvalds return nfs_errtbl[i].errno; 53151da177e4SLinus Torvalds } 53161da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 53171da177e4SLinus Torvalds /* The server is looney tunes. */ 5318856dff3dSBenny Halevy return -ESERVERFAULT; 53191da177e4SLinus Torvalds } 53201da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 53211da177e4SLinus Torvalds * handle it. 53221da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 53231da177e4SLinus Torvalds * not conflict with native Linux error codes. 53241da177e4SLinus Torvalds */ 5325856dff3dSBenny Halevy return -stat; 53261da177e4SLinus Torvalds } 53271da177e4SLinus Torvalds 53281da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 53291da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 53301da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 53311da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 53321da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 53332bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 53342bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5335cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5336cc0175c1SChuck Lever .p_name = #proc, \ 53371da177e4SLinus Torvalds } 53381da177e4SLinus Torvalds 53391da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 53401da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 53411da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 53421da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 53431da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 53441da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 53451da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 53461da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 53471da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 53481da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 53491da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 53501da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 53511da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 53521da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 53531da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 53541da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 53551da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 53561da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 53571da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 53581da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 53591da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 53601da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 53611da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 53621da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 53631da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 53641da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 53651da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 53661da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 53671da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 53681da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 53691da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 53701da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5371029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 537223ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5373683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 537499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 537599fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5376fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 53770f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 53782050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 537999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 53801da177e4SLinus Torvalds }; 53811da177e4SLinus Torvalds 53821da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 53831da177e4SLinus Torvalds .number = 4, 5384e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 53851da177e4SLinus Torvalds .procs = nfs4_procedures 53861da177e4SLinus Torvalds }; 53871da177e4SLinus Torvalds 53881da177e4SLinus Torvalds /* 53891da177e4SLinus Torvalds * Local variables: 53901da177e4SLinus Torvalds * c-basic-offset: 8 53911da177e4SLinus Torvalds * End: 53921da177e4SLinus Torvalds */ 5393