11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * fs/nfs/nfs4xdr.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side XDR for NFSv4. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2002 The Regents of the University of Michigan. 71da177e4SLinus Torvalds * All rights reserved. 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Kendrick Smith <kmsmith@umich.edu> 101da177e4SLinus Torvalds * Andy Adamson <andros@umich.edu> 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4SLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4SLinus Torvalds * are met: 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * 1. Redistributions of source code must retain the above copyright 171da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer. 181da177e4SLinus Torvalds * 2. Redistributions in binary form must reproduce the above copyright 191da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer in the 201da177e4SLinus Torvalds * documentation and/or other materials provided with the distribution. 211da177e4SLinus Torvalds * 3. Neither the name of the University nor the names of its 221da177e4SLinus Torvalds * contributors may be used to endorse or promote products derived 231da177e4SLinus Torvalds * from this software without specific prior written permission. 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 261da177e4SLinus Torvalds * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 271da177e4SLinus Torvalds * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 281da177e4SLinus Torvalds * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291da177e4SLinus Torvalds * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 301da177e4SLinus Torvalds * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 311da177e4SLinus Torvalds * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 321da177e4SLinus Torvalds * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 331da177e4SLinus Torvalds * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 341da177e4SLinus Torvalds * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 351da177e4SLinus Torvalds * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361da177e4SLinus Torvalds */ 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #include <linux/param.h> 391da177e4SLinus Torvalds #include <linux/time.h> 401da177e4SLinus Torvalds #include <linux/mm.h> 411da177e4SLinus Torvalds #include <linux/slab.h> 421da177e4SLinus Torvalds #include <linux/utsname.h> 431da177e4SLinus Torvalds #include <linux/errno.h> 441da177e4SLinus Torvalds #include <linux/string.h> 451da177e4SLinus Torvalds #include <linux/in.h> 461da177e4SLinus Torvalds #include <linux/pagemap.h> 471da177e4SLinus Torvalds #include <linux/proc_fs.h> 481da177e4SLinus Torvalds #include <linux/kdev_t.h> 491da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 501da177e4SLinus Torvalds #include <linux/nfs.h> 511da177e4SLinus Torvalds #include <linux/nfs4.h> 521da177e4SLinus Torvalds #include <linux/nfs_fs.h> 531da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 544ce79717STrond Myklebust #include "nfs4_fs.h" 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 591da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 601da177e4SLinus Torvalds 610a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 641da177e4SLinus Torvalds #ifdef DEBUG 651da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 661da177e4SLinus Torvalds #else 671da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 681da177e4SLinus Torvalds #endif 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* lock,open owner id: 719f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 721da177e4SLinus Torvalds */ 739f958ab8STrond Myklebust #define open_owner_id_maxsz (1 + 4) 749f958ab8STrond Myklebust #define lock_owner_id_maxsz (1 + 4) 759104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 761da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 771da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 781da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 791da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 809104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 819104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 829104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 839104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 841da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 851da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 861da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 871da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 881da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 891da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 901da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 911da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9296928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9396928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 941da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 951da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 96bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 97bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 9896928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 9996928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 100bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10196928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10296928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10396928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1049104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1059104a55dSTrond Myklebust 1 + 2 + 1 + \ 1069104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1079104a55dSTrond Myklebust nfs4_group_maxsz + \ 1089104a55dSTrond Myklebust 4 + 4) 1091da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1101da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11156ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11256ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1132f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1141da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1151da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1161da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1171da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1181da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 119cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 120cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 121cc38bac3SChuck Lever 1 /* sc_prog */ + \ 122cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 123cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 124cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1251da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1261da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1271da177e4SLinus Torvalds 2 + \ 1281da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1291da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1301da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1311da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1321da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1331da177e4SLinus Torvalds (op_decode_hdr_maxsz) 134e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 135e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1362cebf828STrond Myklebust #define encode_share_access_maxsz \ 1372cebf828STrond Myklebust (2) 1389104a55dSTrond Myklebust #define encode_createmode_maxsz (1 + encode_attrs_maxsz) 1392cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1402cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1412cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1422cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1432cebf828STrond Myklebust open_owner_id_maxsz + \ 1442cebf828STrond Myklebust encode_opentype_maxsz + \ 1452cebf828STrond Myklebust encode_claim_null_maxsz) 1462cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1479104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1482cebf828STrond Myklebust decode_ace_maxsz) 1492cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1502cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1519104a55dSTrond Myklebust decode_stateid_maxsz + \ 1522cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1532cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1542cebf828STrond Myklebust decode_delegation_maxsz) 1559104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1569104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1579104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1589104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1599104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1609104a55dSTrond Myklebust decode_stateid_maxsz) 1619104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1629104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1639104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1649104a55dSTrond Myklebust encode_share_access_maxsz) 1659104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1669104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1679104a55dSTrond Myklebust decode_stateid_maxsz) 1689104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1699104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1709104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1719104a55dSTrond Myklebust decode_stateid_maxsz) 1729104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1739104a55dSTrond Myklebust encode_stateid_maxsz + \ 1749104a55dSTrond Myklebust encode_attrs_maxsz) 1759104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1769104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1779104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1789104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1799104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1809104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1819104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1829104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1839104a55dSTrond Myklebust decode_verifier_maxsz) 1849104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1859104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1869104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1879104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1889104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1909104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1919104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1929104a55dSTrond Myklebust decode_verifier_maxsz) 1931da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1941da177e4SLinus Torvalds nfs4_name_maxsz) 1956ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 1966ce18391SBenny Halevy decode_change_info_maxsz) 1971da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1981da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1996ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2006ce18391SBenny Halevy decode_change_info_maxsz + \ 2016ce18391SBenny Halevy decode_change_info_maxsz) 2021da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2031da177e4SLinus Torvalds nfs4_name_maxsz) 2046ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 2059104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2069104a55dSTrond Myklebust 7 + \ 2079104a55dSTrond Myklebust 1 + encode_stateid_maxsz + 8) 2089104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2099104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2109104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2119104a55dSTrond Myklebust decode_lock_denied_maxsz) 2129104a55dSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) 2139104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2149104a55dSTrond Myklebust decode_lock_denied_maxsz) 2159104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2169104a55dSTrond Myklebust encode_stateid_maxsz + \ 2179104a55dSTrond Myklebust 4) 2189104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2199104a55dSTrond Myklebust decode_stateid_maxsz) 2209104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2219104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2221da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2231da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 22494a6d753SChuck Lever 1 + \ 22596928206SJ. Bruce Fields nfs4_fattr_maxsz) 2261da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2271da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2289104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2299104a55dSTrond Myklebust encode_attrs_maxsz) 2302cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2312cebf828STrond Myklebust decode_change_info_maxsz + \ 2322cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2339104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2349104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2351da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2361da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2379104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2389104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2399104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2409104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2419104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2429104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 243e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 244e6889620STrond Myklebust (encode_getattr_maxsz) 245e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 246e6889620STrond Myklebust (0) 2479b7b9fccSAndy Adamson 2489b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 249fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 250fc931582SAndy Adamson 25199fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 25299fe60d0SBenny Halevy encode_verifier_maxsz + \ 25399fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 25499fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 25599fe60d0SBenny Halevy 1 /* flags */ + \ 25699fe60d0SBenny Halevy 1 /* spa_how */ + \ 25799fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 25899fe60d0SBenny Halevy 1 /* zero implemetation id array */) 25999fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 26099fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 26199fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 26299fe60d0SBenny Halevy 1 /* eir_flags */ + \ 26399fe60d0SBenny Halevy 1 /* spr_how */ + \ 26499fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 26599fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 26699fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 26799fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 26899fe60d0SBenny Halevy /* eir_server_scope<> */ \ 26999fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27099fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 27199fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 272fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 273fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 274fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 275fc931582SAndy Adamson 1 /* ca_rdma_ird */) 276fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 277fc931582SAndy Adamson 2 /* csa_clientid */ + \ 278fc931582SAndy Adamson 1 /* csa_sequence */ + \ 279fc931582SAndy Adamson 1 /* csa_flags */ + \ 280fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 281fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 282fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 283fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 284fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 285fc931582SAndy Adamson 1 /* stamp */ + \ 286fc931582SAndy Adamson 1 /* machinename.len */ + \ 287fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 288fc931582SAndy Adamson 1 /* uid */ + \ 289fc931582SAndy Adamson 1 /* gid */ + \ 290fc931582SAndy Adamson 1 /* gids.len (0) */) 291fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 292fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 293fc931582SAndy Adamson 1 /* csr_sequence */ + \ 294fc931582SAndy Adamson 1 /* csr_flags */ + \ 295fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 296fc931582SAndy Adamson decode_channel_attrs_maxsz) 2970f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 2980f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 299fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 300fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 301fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 302fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 3039b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3049b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3059b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3069b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3079b7b9fccSAndy Adamson 3081da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3091da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3101da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3121da177e4SLinus Torvalds encode_putfh_maxsz + \ 3139104a55dSTrond Myklebust encode_read_maxsz) 3141da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3159b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3161da177e4SLinus Torvalds decode_putfh_maxsz + \ 3179104a55dSTrond Myklebust decode_read_maxsz) 3181da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3199b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3201da177e4SLinus Torvalds encode_putfh_maxsz + \ 3219104a55dSTrond Myklebust encode_readlink_maxsz) 3221da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3241da177e4SLinus Torvalds decode_putfh_maxsz + \ 3259104a55dSTrond Myklebust decode_readlink_maxsz) 3261da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3279b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3281da177e4SLinus Torvalds encode_putfh_maxsz + \ 3299104a55dSTrond Myklebust encode_readdir_maxsz) 3301da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3319b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3321da177e4SLinus Torvalds decode_putfh_maxsz + \ 3339104a55dSTrond Myklebust decode_readdir_maxsz) 3341da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3361da177e4SLinus Torvalds encode_putfh_maxsz + \ 3379104a55dSTrond Myklebust encode_write_maxsz + \ 3384f9838c7STrond Myklebust encode_getattr_maxsz) 3391da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3409b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3411da177e4SLinus Torvalds decode_putfh_maxsz + \ 3429104a55dSTrond Myklebust decode_write_maxsz + \ 3434f9838c7STrond Myklebust decode_getattr_maxsz) 3441da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3461da177e4SLinus Torvalds encode_putfh_maxsz + \ 3479104a55dSTrond Myklebust encode_commit_maxsz + \ 3484f9838c7STrond Myklebust encode_getattr_maxsz) 3491da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3511da177e4SLinus Torvalds decode_putfh_maxsz + \ 3529104a55dSTrond Myklebust decode_commit_maxsz + \ 3534f9838c7STrond Myklebust decode_getattr_maxsz) 3541da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3561da177e4SLinus Torvalds encode_putfh_maxsz + \ 3572cebf828STrond Myklebust encode_savefh_maxsz + \ 3582cebf828STrond Myklebust encode_open_maxsz + \ 3592cebf828STrond Myklebust encode_getfh_maxsz + \ 3601da177e4SLinus Torvalds encode_getattr_maxsz + \ 3612cebf828STrond Myklebust encode_restorefh_maxsz + \ 3622cebf828STrond Myklebust encode_getattr_maxsz) 3631da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 3649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3651da177e4SLinus Torvalds decode_putfh_maxsz + \ 3662cebf828STrond Myklebust decode_savefh_maxsz + \ 3672cebf828STrond Myklebust decode_open_maxsz + \ 3682cebf828STrond Myklebust decode_getfh_maxsz + \ 3691da177e4SLinus Torvalds decode_getattr_maxsz + \ 3702cebf828STrond Myklebust decode_restorefh_maxsz + \ 3712cebf828STrond Myklebust decode_getattr_maxsz) 3721da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3731da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3741da177e4SLinus Torvalds encode_putfh_maxsz + \ 3759104a55dSTrond Myklebust encode_open_confirm_maxsz) 3769104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3779104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3781da177e4SLinus Torvalds decode_putfh_maxsz + \ 3799104a55dSTrond Myklebust decode_open_confirm_maxsz) 3801da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3821da177e4SLinus Torvalds encode_putfh_maxsz + \ 3832cebf828STrond Myklebust encode_open_maxsz + \ 3842cebf828STrond Myklebust encode_getattr_maxsz) 3851da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3869b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3871da177e4SLinus Torvalds decode_putfh_maxsz + \ 3882cebf828STrond Myklebust decode_open_maxsz + \ 3892cebf828STrond Myklebust decode_getattr_maxsz) 3901da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3911da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3931da177e4SLinus Torvalds encode_putfh_maxsz + \ 3949104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 395516a6af6STrond Myklebust encode_getattr_maxsz) 3961da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 3971da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3989b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3991da177e4SLinus Torvalds decode_putfh_maxsz + \ 4009104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 401516a6af6STrond Myklebust decode_getattr_maxsz) 4021da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4041da177e4SLinus Torvalds encode_putfh_maxsz + \ 4059104a55dSTrond Myklebust encode_close_maxsz + \ 406516a6af6STrond Myklebust encode_getattr_maxsz) 4071da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4091da177e4SLinus Torvalds decode_putfh_maxsz + \ 4109104a55dSTrond Myklebust decode_close_maxsz + \ 411516a6af6STrond Myklebust decode_getattr_maxsz) 4121da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4141da177e4SLinus Torvalds encode_putfh_maxsz + \ 4159104a55dSTrond Myklebust encode_setattr_maxsz + \ 4161da177e4SLinus Torvalds encode_getattr_maxsz) 4171da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4191da177e4SLinus Torvalds decode_putfh_maxsz + \ 4209104a55dSTrond Myklebust decode_setattr_maxsz + \ 4219104a55dSTrond Myklebust decode_getattr_maxsz) 4221da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4241da177e4SLinus Torvalds encode_putfh_maxsz + \ 4251da177e4SLinus Torvalds encode_fsinfo_maxsz) 4261da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4281da177e4SLinus Torvalds decode_putfh_maxsz + \ 4291da177e4SLinus Torvalds decode_fsinfo_maxsz) 4301da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4311da177e4SLinus Torvalds encode_renew_maxsz) 4321da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4331da177e4SLinus Torvalds decode_renew_maxsz) 4341da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4351da177e4SLinus Torvalds encode_setclientid_maxsz) 4361da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4371da177e4SLinus Torvalds decode_setclientid_maxsz) 4381da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4391da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4401da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4411da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4421da177e4SLinus Torvalds encode_fsinfo_maxsz) 4431da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4441da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4451da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4461da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4471da177e4SLinus Torvalds decode_fsinfo_maxsz) 4481da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4499b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4501da177e4SLinus Torvalds encode_putfh_maxsz + \ 4519104a55dSTrond Myklebust encode_lock_maxsz) 4521da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4541da177e4SLinus Torvalds decode_putfh_maxsz + \ 4559104a55dSTrond Myklebust decode_lock_maxsz) 4561da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4581da177e4SLinus Torvalds encode_putfh_maxsz + \ 4599104a55dSTrond Myklebust encode_lockt_maxsz) 4609104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 4619b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4629104a55dSTrond Myklebust decode_putfh_maxsz + \ 4639104a55dSTrond Myklebust decode_lockt_maxsz) 4641da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 4659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4661da177e4SLinus Torvalds encode_putfh_maxsz + \ 4679104a55dSTrond Myklebust encode_locku_maxsz) 4681da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 4699b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4701da177e4SLinus Torvalds decode_putfh_maxsz + \ 4719104a55dSTrond Myklebust decode_locku_maxsz) 4721da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 4739b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4741da177e4SLinus Torvalds encode_putfh_maxsz + \ 47576b32999STrond Myklebust encode_access_maxsz + \ 47676b32999STrond Myklebust encode_getattr_maxsz) 4771da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 4789b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4791da177e4SLinus Torvalds decode_putfh_maxsz + \ 48076b32999STrond Myklebust decode_access_maxsz + \ 48176b32999STrond Myklebust decode_getattr_maxsz) 4821da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 4839b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4841da177e4SLinus Torvalds encode_putfh_maxsz + \ 4851da177e4SLinus Torvalds encode_getattr_maxsz) 4861da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 4879b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4881da177e4SLinus Torvalds decode_putfh_maxsz + \ 4891da177e4SLinus Torvalds decode_getattr_maxsz) 4901da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 4919b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4921da177e4SLinus Torvalds encode_putfh_maxsz + \ 4931da177e4SLinus Torvalds encode_lookup_maxsz + \ 4941da177e4SLinus Torvalds encode_getattr_maxsz + \ 4951da177e4SLinus Torvalds encode_getfh_maxsz) 4961da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 4979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4981da177e4SLinus Torvalds decode_putfh_maxsz + \ 499e6889620STrond Myklebust decode_lookup_maxsz + \ 5001da177e4SLinus Torvalds decode_getattr_maxsz + \ 5011da177e4SLinus Torvalds decode_getfh_maxsz) 5021da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5041da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5051da177e4SLinus Torvalds encode_getattr_maxsz + \ 5061da177e4SLinus Torvalds encode_getfh_maxsz) 5071da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5091da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5101da177e4SLinus Torvalds decode_getattr_maxsz + \ 5111da177e4SLinus Torvalds decode_getfh_maxsz) 5121da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5141da177e4SLinus Torvalds encode_putfh_maxsz + \ 51516e42959STrond Myklebust encode_remove_maxsz + \ 51616e42959STrond Myklebust encode_getattr_maxsz) 5171da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5191da177e4SLinus Torvalds decode_putfh_maxsz + \ 5206ce18391SBenny Halevy decode_remove_maxsz + \ 52116e42959STrond Myklebust decode_getattr_maxsz) 5221da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5241da177e4SLinus Torvalds encode_putfh_maxsz + \ 5251da177e4SLinus Torvalds encode_savefh_maxsz + \ 5261da177e4SLinus Torvalds encode_putfh_maxsz + \ 5276caf2c82STrond Myklebust encode_rename_maxsz + \ 5286caf2c82STrond Myklebust encode_getattr_maxsz + \ 5296caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5306caf2c82STrond Myklebust encode_getattr_maxsz) 5311da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5331da177e4SLinus Torvalds decode_putfh_maxsz + \ 5341da177e4SLinus Torvalds decode_savefh_maxsz + \ 5351da177e4SLinus Torvalds decode_putfh_maxsz + \ 5366caf2c82STrond Myklebust decode_rename_maxsz + \ 5376caf2c82STrond Myklebust decode_getattr_maxsz + \ 5386caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5396caf2c82STrond Myklebust decode_getattr_maxsz) 5401da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5419b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5421da177e4SLinus Torvalds encode_putfh_maxsz + \ 5431da177e4SLinus Torvalds encode_savefh_maxsz + \ 5441da177e4SLinus Torvalds encode_putfh_maxsz + \ 54591ba2eeeSTrond Myklebust encode_link_maxsz + \ 54691ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 54791ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 54891ba2eeeSTrond Myklebust decode_getattr_maxsz) 5491da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5511da177e4SLinus Torvalds decode_putfh_maxsz + \ 5521da177e4SLinus Torvalds decode_savefh_maxsz + \ 5531da177e4SLinus Torvalds decode_putfh_maxsz + \ 55491ba2eeeSTrond Myklebust decode_link_maxsz + \ 55591ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 55691ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 55791ba2eeeSTrond Myklebust decode_getattr_maxsz) 5581da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 5599b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5601da177e4SLinus Torvalds encode_putfh_maxsz + \ 5611da177e4SLinus Torvalds encode_symlink_maxsz + \ 5621da177e4SLinus Torvalds encode_getattr_maxsz + \ 5631da177e4SLinus Torvalds encode_getfh_maxsz) 5641da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 5659b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5661da177e4SLinus Torvalds decode_putfh_maxsz + \ 5671da177e4SLinus Torvalds decode_symlink_maxsz + \ 5681da177e4SLinus Torvalds decode_getattr_maxsz + \ 5691da177e4SLinus Torvalds decode_getfh_maxsz) 5701da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 5719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5721da177e4SLinus Torvalds encode_putfh_maxsz + \ 57356ae19f3STrond Myklebust encode_savefh_maxsz + \ 5741da177e4SLinus Torvalds encode_create_maxsz + \ 57556ae19f3STrond Myklebust encode_getfh_maxsz + \ 5761da177e4SLinus Torvalds encode_getattr_maxsz + \ 57756ae19f3STrond Myklebust encode_restorefh_maxsz + \ 57856ae19f3STrond Myklebust encode_getattr_maxsz) 5791da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 5809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5811da177e4SLinus Torvalds decode_putfh_maxsz + \ 58256ae19f3STrond Myklebust decode_savefh_maxsz + \ 5831da177e4SLinus Torvalds decode_create_maxsz + \ 58456ae19f3STrond Myklebust decode_getfh_maxsz + \ 5851da177e4SLinus Torvalds decode_getattr_maxsz + \ 58656ae19f3STrond Myklebust decode_restorefh_maxsz + \ 58756ae19f3STrond Myklebust decode_getattr_maxsz) 5881da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 5899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5901da177e4SLinus Torvalds encode_putfh_maxsz + \ 5911da177e4SLinus Torvalds encode_getattr_maxsz) 5921da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 5939b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5941da177e4SLinus Torvalds decode_putfh_maxsz + \ 5951da177e4SLinus Torvalds decode_getattr_maxsz) 5961da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 5979b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5981da177e4SLinus Torvalds encode_putfh_maxsz + \ 5999104a55dSTrond Myklebust encode_statfs_maxsz) 6001da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6019b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6021da177e4SLinus Torvalds decode_putfh_maxsz + \ 6039104a55dSTrond Myklebust decode_statfs_maxsz) 6041da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 606ab91f264STrond Myklebust encode_putfh_maxsz + \ 6071da177e4SLinus Torvalds encode_getattr_maxsz) 6081da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6099b7b9fccSAndy Adamson decode_sequence_maxsz + \ 610ab91f264STrond Myklebust decode_putfh_maxsz + \ 6111da177e4SLinus Torvalds decode_getattr_maxsz) 6121da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6141da177e4SLinus Torvalds encode_putfh_maxsz + \ 615fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 616fa178f29STrond Myklebust encode_getattr_maxsz) 6171da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 619fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 620fa178f29STrond Myklebust decode_getattr_maxsz) 621029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 623029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6249104a55dSTrond Myklebust encode_getacl_maxsz) 625029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6269b7b9fccSAndy Adamson decode_sequence_maxsz + \ 627029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6289104a55dSTrond Myklebust decode_getacl_maxsz) 62923ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6309b7b9fccSAndy Adamson encode_sequence_maxsz + \ 63123ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6329104a55dSTrond Myklebust encode_setacl_maxsz) 63323ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 63523ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6369104a55dSTrond Myklebust decode_setacl_maxsz) 637683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 638683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6399b7b9fccSAndy Adamson encode_sequence_maxsz + \ 640683b57b4STrond Myklebust encode_putfh_maxsz + \ 641e6889620STrond Myklebust encode_lookup_maxsz + \ 642e6889620STrond Myklebust encode_fs_locations_maxsz) 643683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 644683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6459b7b9fccSAndy Adamson decode_sequence_maxsz + \ 646683b57b4STrond Myklebust decode_putfh_maxsz + \ 647e6889620STrond Myklebust decode_lookup_maxsz + \ 648e6889620STrond Myklebust decode_fs_locations_maxsz) 64999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 65099fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 65199fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 65299fe60d0SBenny Halevy encode_exchange_id_maxsz) 65399fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 65499fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 65599fe60d0SBenny Halevy decode_exchange_id_maxsz) 656fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 657fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 658fc931582SAndy Adamson encode_create_session_maxsz) 659fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 660fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 661fc931582SAndy Adamson decode_create_session_maxsz) 6620f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 6630f3e66c6SAndy Adamson encode_destroy_session_maxsz) 6640f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 6650f3e66c6SAndy Adamson decode_destroy_session_maxsz) 666fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 667fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 668fc01cea9SAndy Adamson encode_sequence_maxsz) 669fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 670fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 671fc01cea9SAndy Adamson decode_sequence_maxsz) 6722050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 6732050f0ccSAndy Adamson encode_sequence_maxsz + \ 6742050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 6752050f0ccSAndy Adamson encode_fsinfo_maxsz) 6762050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 6772050f0ccSAndy Adamson decode_sequence_maxsz + \ 6782050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 6792050f0ccSAndy Adamson decode_fsinfo_maxsz) 68099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 6811da177e4SLinus Torvalds 682bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 683bca79478STrond Myklebust [NF4BAD] = 0, 684bca79478STrond Myklebust [NF4REG] = S_IFREG, 685bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 686bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 687bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 688bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 689bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 690bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 691bca79478STrond Myklebust [NF4ATTRDIR] = 0, 692bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 6931da177e4SLinus Torvalds }; 6941da177e4SLinus Torvalds 6951da177e4SLinus Torvalds struct compound_hdr { 6961da177e4SLinus Torvalds int32_t status; 6971da177e4SLinus Torvalds uint32_t nops; 698d017931cSAndy Adamson __be32 * nops_p; 6991da177e4SLinus Torvalds uint32_t taglen; 7001da177e4SLinus Torvalds char * tag; 7010c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 70266cc0429SBenny Halevy u32 minorversion; 7031da177e4SLinus Torvalds }; 7041da177e4SLinus Torvalds 7051da177e4SLinus Torvalds /* 7061da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 7071da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 7081da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 7091da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 7101da177e4SLinus Torvalds * 7111da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 7121da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 7131da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 7141da177e4SLinus Torvalds */ 7151da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 7161da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 7171da177e4SLinus Torvalds } while (0) 7181da177e4SLinus Torvalds 7191da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 7201da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 7211da177e4SLinus Torvalds BUG_ON(!p); \ 7221da177e4SLinus Torvalds } while (0) 7231da177e4SLinus Torvalds 7241da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7251da177e4SLinus Torvalds { 7268687b63aSAl Viro __be32 *p; 7271da177e4SLinus Torvalds 7281da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7291da177e4SLinus Torvalds BUG_ON(p == NULL); 7301da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7311da177e4SLinus Torvalds } 7321da177e4SLinus Torvalds 7330c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7340c4e8c18SBenny Halevy struct rpc_rqst *req, 7350c4e8c18SBenny Halevy struct compound_hdr *hdr) 7361da177e4SLinus Torvalds { 7378687b63aSAl Viro __be32 *p; 7380c4e8c18SBenny Halevy struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 7390c4e8c18SBenny Halevy 7400c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7410c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7420c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7430c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7461da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 7471da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 748e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->taglen); 7491da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 750e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 751d017931cSAndy Adamson hdr->nops_p = p; 752e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->nops); 753d017931cSAndy Adamson } 754d017931cSAndy Adamson 755d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 756d017931cSAndy Adamson { 757fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 758d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 7591da177e4SLinus Torvalds } 7601da177e4SLinus Torvalds 7611da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 7621da177e4SLinus Torvalds { 7638687b63aSAl Viro __be32 *p; 7641da177e4SLinus Torvalds 7651da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 7661da177e4SLinus Torvalds BUG_ON(p == NULL); 7671da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 7681da177e4SLinus Torvalds } 7691da177e4SLinus Torvalds 770cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 7711da177e4SLinus Torvalds { 7721da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 7731da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 7741da177e4SLinus Torvalds int owner_namelen = 0; 7751da177e4SLinus Torvalds int owner_grouplen = 0; 7768687b63aSAl Viro __be32 *p; 7778687b63aSAl Viro __be32 *q; 7781da177e4SLinus Torvalds int len; 7791da177e4SLinus Torvalds uint32_t bmval0 = 0; 7801da177e4SLinus Torvalds uint32_t bmval1 = 0; 7811da177e4SLinus Torvalds 7821da177e4SLinus Torvalds /* 7831da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 7841da177e4SLinus Torvalds * In the worst-case, this would be 7851da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 7861da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 78723ec6965SJ. Bruce Fields * such as owner/group. 7881da177e4SLinus Torvalds */ 7891da177e4SLinus Torvalds len = 16; 7901da177e4SLinus Torvalds 7911da177e4SLinus Torvalds /* Sigh */ 7921da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 7931da177e4SLinus Torvalds len += 8; 7941da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 7951da177e4SLinus Torvalds len += 4; 7961da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 7977539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 7981da177e4SLinus Torvalds if (owner_namelen < 0) { 799fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 8001da177e4SLinus Torvalds iap->ia_uid); 8011da177e4SLinus Torvalds /* XXX */ 8021da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 8031da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8041da177e4SLinus Torvalds /* goto out; */ 8051da177e4SLinus Torvalds } 8061da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8071da177e4SLinus Torvalds } 8081da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8097539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 8101da177e4SLinus Torvalds if (owner_grouplen < 0) { 811fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8121da177e4SLinus Torvalds iap->ia_gid); 8131da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8141da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8151da177e4SLinus Torvalds /* goto out; */ 8161da177e4SLinus Torvalds } 8171da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8181da177e4SLinus Torvalds } 8191da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8201da177e4SLinus Torvalds len += 16; 8211da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8221da177e4SLinus Torvalds len += 4; 8231da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8241da177e4SLinus Torvalds len += 16; 8251da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8261da177e4SLinus Torvalds len += 4; 8271da177e4SLinus Torvalds RESERVE_SPACE(len); 8281da177e4SLinus Torvalds 8291da177e4SLinus Torvalds /* 8301da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8311da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8321da177e4SLinus Torvalds */ 833e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 8341da177e4SLinus Torvalds q = p; 8351da177e4SLinus Torvalds p += 3; 8361da177e4SLinus Torvalds 8371da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8381da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 839b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 8401da177e4SLinus Torvalds } 8411da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8421da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 843e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 8441da177e4SLinus Torvalds } 8451da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8461da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 847e75bc1c8SBenny Halevy *p++ = cpu_to_be32(owner_namelen); 8481da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 8491da177e4SLinus Torvalds } 8501da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8511da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 852e75bc1c8SBenny Halevy *p++ = cpu_to_be32(owner_grouplen); 8531da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 8541da177e4SLinus Torvalds } 8551da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 8561da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 857e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 858e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 859e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 860e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8611da177e4SLinus Torvalds } 8621da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 8631da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 864e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8651da177e4SLinus Torvalds } 8661da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 8671da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 868e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 869e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 870e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 871e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8721da177e4SLinus Torvalds } 8731da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 8741da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 875e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8761da177e4SLinus Torvalds } 8771da177e4SLinus Torvalds 8781da177e4SLinus Torvalds /* 8791da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 8801da177e4SLinus Torvalds */ 8811da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 882fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 8831da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 8841da177e4SLinus Torvalds BUG(); 8851da177e4SLinus Torvalds } 8861da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 8871da177e4SLinus Torvalds *q++ = htonl(bmval0); 8881da177e4SLinus Torvalds *q++ = htonl(bmval1); 8891da177e4SLinus Torvalds *q++ = htonl(len); 8901da177e4SLinus Torvalds 8911da177e4SLinus Torvalds /* out: */ 8921da177e4SLinus Torvalds } 8931da177e4SLinus Torvalds 894cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 8951da177e4SLinus Torvalds { 8968687b63aSAl Viro __be32 *p; 8971da177e4SLinus Torvalds 8981da177e4SLinus Torvalds RESERVE_SPACE(8); 899e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 900e75bc1c8SBenny Halevy *p++ = cpu_to_be32(access); 901d017931cSAndy Adamson hdr->nops++; 902dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 9031da177e4SLinus Torvalds } 9041da177e4SLinus Torvalds 905cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9061da177e4SLinus Torvalds { 9078687b63aSAl Viro __be32 *p; 9081da177e4SLinus Torvalds 9098ae20abdSTrond Myklebust RESERVE_SPACE(8+NFS4_STATEID_SIZE); 910e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 911e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 9128ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 913d017931cSAndy Adamson hdr->nops++; 914dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9151da177e4SLinus Torvalds } 9161da177e4SLinus Torvalds 917cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9181da177e4SLinus Torvalds { 9198687b63aSAl Viro __be32 *p; 9201da177e4SLinus Torvalds 9211da177e4SLinus Torvalds RESERVE_SPACE(16); 922e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 923b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 924e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->count); 925d017931cSAndy Adamson hdr->nops++; 926dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9271da177e4SLinus Torvalds } 9281da177e4SLinus Torvalds 929cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9301da177e4SLinus Torvalds { 9318687b63aSAl Viro __be32 *p; 9321da177e4SLinus Torvalds 9331da177e4SLinus Torvalds RESERVE_SPACE(8); 934e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 935e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->ftype); 9361da177e4SLinus Torvalds 9371da177e4SLinus Torvalds switch (create->ftype) { 9381da177e4SLinus Torvalds case NF4LNK: 93994a6d753SChuck Lever RESERVE_SPACE(4); 940e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.symlink.len); 94194a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9421da177e4SLinus Torvalds break; 9431da177e4SLinus Torvalds 9441da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 9451da177e4SLinus Torvalds RESERVE_SPACE(8); 946e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 947e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata2); 9481da177e4SLinus Torvalds break; 9491da177e4SLinus Torvalds 9501da177e4SLinus Torvalds default: 9511da177e4SLinus Torvalds break; 9521da177e4SLinus Torvalds } 9531da177e4SLinus Torvalds 9541da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 955e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->name->len); 9561da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 957d017931cSAndy Adamson hdr->nops++; 958dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 9591da177e4SLinus Torvalds 960cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 9611da177e4SLinus Torvalds } 9621da177e4SLinus Torvalds 963cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 9641da177e4SLinus Torvalds { 9658687b63aSAl Viro __be32 *p; 9661da177e4SLinus Torvalds 9671da177e4SLinus Torvalds RESERVE_SPACE(12); 968e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 969e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 970e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bitmap); 971d017931cSAndy Adamson hdr->nops++; 972dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9731da177e4SLinus Torvalds } 9741da177e4SLinus Torvalds 975cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 9761da177e4SLinus Torvalds { 9778687b63aSAl Viro __be32 *p; 9781da177e4SLinus Torvalds 9791da177e4SLinus Torvalds RESERVE_SPACE(16); 980e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 981e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 982e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 983e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm1); 984d017931cSAndy Adamson hdr->nops++; 985dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9861da177e4SLinus Torvalds } 9871da177e4SLinus Torvalds 988cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9891da177e4SLinus Torvalds { 990cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 991d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 9921da177e4SLinus Torvalds } 9931da177e4SLinus Torvalds 994cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9951da177e4SLinus Torvalds { 996cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 997d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 9981da177e4SLinus Torvalds } 9991da177e4SLinus Torvalds 1000cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1001830b8e33SManoj Naik { 1002cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1003cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1004830b8e33SManoj Naik } 1005830b8e33SManoj Naik 1006cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10071da177e4SLinus Torvalds { 10088687b63aSAl Viro __be32 *p; 10091da177e4SLinus Torvalds 10101da177e4SLinus Torvalds RESERVE_SPACE(4); 1011e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETFH); 1012d017931cSAndy Adamson hdr->nops++; 1013dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10141da177e4SLinus Torvalds } 10151da177e4SLinus Torvalds 1016cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10171da177e4SLinus Torvalds { 10188687b63aSAl Viro __be32 *p; 10191da177e4SLinus Torvalds 10201da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 1021e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1022e75bc1c8SBenny Halevy *p++ = cpu_to_be32(name->len); 10231da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 1024d017931cSAndy Adamson hdr->nops++; 1025dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10261da177e4SLinus Torvalds } 10271da177e4SLinus Torvalds 1028911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1029911d1aafSTrond Myklebust { 1030911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1031911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1032911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1033911d1aafSTrond Myklebust } 1034911d1aafSTrond Myklebust 1035911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1036911d1aafSTrond Myklebust { 1037911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1038911d1aafSTrond Myklebust return ~(uint64_t)0; 1039911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1040911d1aafSTrond Myklebust } 1041911d1aafSTrond Myklebust 10421da177e4SLinus Torvalds /* 10431da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 10441da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 10451da177e4SLinus Torvalds */ 1046cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 10471da177e4SLinus Torvalds { 10488687b63aSAl Viro __be32 *p; 10491da177e4SLinus Torvalds 10501da177e4SLinus Torvalds RESERVE_SPACE(32); 1051e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1052e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1053e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1054b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1055b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1056e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->new_lock_owner); 1057911d1aafSTrond Myklebust if (args->new_lock_owner){ 10589f958ab8STrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 1059e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 10608ae20abdSTrond Myklebust WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 1061e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1062b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1063e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 10649f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 1065b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.id); 10661da177e4SLinus Torvalds } 10671da177e4SLinus Torvalds else { 10688ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE+4); 10698ae20abdSTrond Myklebust WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 1070e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 10711da177e4SLinus Torvalds } 1072d017931cSAndy Adamson hdr->nops++; 1073dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 10741da177e4SLinus Torvalds } 10751da177e4SLinus Torvalds 1076cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 10771da177e4SLinus Torvalds { 10788687b63aSAl Viro __be32 *p; 10791da177e4SLinus Torvalds 10809f958ab8STrond Myklebust RESERVE_SPACE(52); 1081e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1082e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1083b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1084b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1085b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1086e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 10879f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 1088b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.id); 1089d017931cSAndy Adamson hdr->nops++; 1090dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 10911da177e4SLinus Torvalds } 10921da177e4SLinus Torvalds 1093cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 10941da177e4SLinus Torvalds { 10958687b63aSAl Viro __be32 *p; 10961da177e4SLinus Torvalds 10978ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 1098e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1099e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1100e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 11018ae20abdSTrond Myklebust WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 1102b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1103b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1104d017931cSAndy Adamson hdr->nops++; 1105dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11061da177e4SLinus Torvalds } 11071da177e4SLinus Torvalds 1108cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11091da177e4SLinus Torvalds { 11101da177e4SLinus Torvalds int len = name->len; 11118687b63aSAl Viro __be32 *p; 11121da177e4SLinus Torvalds 11131da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 1114e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1115e75bc1c8SBenny Halevy *p++ = cpu_to_be32(len); 11161da177e4SLinus Torvalds WRITEMEM(name->name, len); 1117d017931cSAndy Adamson hdr->nops++; 1118dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11191da177e4SLinus Torvalds } 11201da177e4SLinus Torvalds 1121dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11221da177e4SLinus Torvalds { 11238687b63aSAl Viro __be32 *p; 11241da177e4SLinus Torvalds 11251da177e4SLinus Torvalds RESERVE_SPACE(8); 1126dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11271da177e4SLinus Torvalds case FMODE_READ: 1128e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11291da177e4SLinus Torvalds break; 11301da177e4SLinus Torvalds case FMODE_WRITE: 1131e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11321da177e4SLinus Torvalds break; 11331da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1134e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11351da177e4SLinus Torvalds break; 11361da177e4SLinus Torvalds default: 1137e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11381da177e4SLinus Torvalds } 1139e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 11401da177e4SLinus Torvalds } 11411da177e4SLinus Torvalds 11421da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11431da177e4SLinus Torvalds { 11448687b63aSAl Viro __be32 *p; 11451da177e4SLinus Torvalds /* 11461da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 11471da177e4SLinus Torvalds * owner 4 = 32 11481da177e4SLinus Torvalds */ 11491da177e4SLinus Torvalds RESERVE_SPACE(8); 1150e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 1151e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 1152dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 11539f958ab8STrond Myklebust RESERVE_SPACE(28); 1154b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1155e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 11569f958ab8STrond Myklebust WRITEMEM("open id:", 8); 1157b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->id); 11581da177e4SLinus Torvalds } 11591da177e4SLinus Torvalds 11601da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11611da177e4SLinus Torvalds { 11628687b63aSAl Viro __be32 *p; 11631da177e4SLinus Torvalds 11641da177e4SLinus Torvalds RESERVE_SPACE(4); 11651da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 11661da177e4SLinus Torvalds case 0: 1167e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_CREATE_UNCHECKED); 11681da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 11691da177e4SLinus Torvalds break; 11701da177e4SLinus Torvalds default: 1171e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 11721da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 11731da177e4SLinus Torvalds } 11741da177e4SLinus Torvalds } 11751da177e4SLinus Torvalds 11761da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11771da177e4SLinus Torvalds { 11788687b63aSAl Viro __be32 *p; 11791da177e4SLinus Torvalds 11801da177e4SLinus Torvalds RESERVE_SPACE(4); 11811da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 11821da177e4SLinus Torvalds case 0: 1183e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_NOCREATE); 11841da177e4SLinus Torvalds break; 11851da177e4SLinus Torvalds default: 11861da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 1187e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CREATE); 11881da177e4SLinus Torvalds encode_createmode(xdr, arg); 11891da177e4SLinus Torvalds } 11901da177e4SLinus Torvalds } 11911da177e4SLinus Torvalds 1192bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 11931da177e4SLinus Torvalds { 11948687b63aSAl Viro __be32 *p; 11951da177e4SLinus Torvalds 11961da177e4SLinus Torvalds RESERVE_SPACE(4); 11971da177e4SLinus Torvalds switch (delegation_type) { 11981da177e4SLinus Torvalds case 0: 1199e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 12001da177e4SLinus Torvalds break; 12011da177e4SLinus Torvalds case FMODE_READ: 1202e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 12031da177e4SLinus Torvalds break; 12041da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 1205e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 12061da177e4SLinus Torvalds break; 12071da177e4SLinus Torvalds default: 12081da177e4SLinus Torvalds BUG(); 12091da177e4SLinus Torvalds } 12101da177e4SLinus Torvalds } 12111da177e4SLinus Torvalds 12121da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12131da177e4SLinus Torvalds { 12148687b63aSAl Viro __be32 *p; 12151da177e4SLinus Torvalds 12161da177e4SLinus Torvalds RESERVE_SPACE(4); 1217e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 12181da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12191da177e4SLinus Torvalds } 12201da177e4SLinus Torvalds 1221bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12221da177e4SLinus Torvalds { 12238687b63aSAl Viro __be32 *p; 12241da177e4SLinus Torvalds 12251da177e4SLinus Torvalds RESERVE_SPACE(4); 1226e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 12271da177e4SLinus Torvalds encode_delegation_type(xdr, type); 12281da177e4SLinus Torvalds } 12291da177e4SLinus Torvalds 12301da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 12311da177e4SLinus Torvalds { 12328687b63aSAl Viro __be32 *p; 12331da177e4SLinus Torvalds 12348ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1235e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 12368ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 12371da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12381da177e4SLinus Torvalds } 12391da177e4SLinus Torvalds 1240cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 12411da177e4SLinus Torvalds { 12421da177e4SLinus Torvalds encode_openhdr(xdr, arg); 12431da177e4SLinus Torvalds encode_opentype(xdr, arg); 12441da177e4SLinus Torvalds switch (arg->claim) { 12451da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 12461da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 12471da177e4SLinus Torvalds break; 12481da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 12491da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 12501da177e4SLinus Torvalds break; 12511da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 12521da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 12531da177e4SLinus Torvalds break; 12541da177e4SLinus Torvalds default: 12551da177e4SLinus Torvalds BUG(); 12561da177e4SLinus Torvalds } 1257d017931cSAndy Adamson hdr->nops++; 1258dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 12591da177e4SLinus Torvalds } 12601da177e4SLinus Torvalds 1261cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 12621da177e4SLinus Torvalds { 12638687b63aSAl Viro __be32 *p; 12641da177e4SLinus Torvalds 12658ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 1266e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 12678ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1268e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 1269d017931cSAndy Adamson hdr->nops++; 1270dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 12711da177e4SLinus Torvalds } 12721da177e4SLinus Torvalds 1273cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 12741da177e4SLinus Torvalds { 12758687b63aSAl Viro __be32 *p; 12761da177e4SLinus Torvalds 12778ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 1278e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 12798ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1280e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 1281dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1282d017931cSAndy Adamson hdr->nops++; 1283dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 12841da177e4SLinus Torvalds } 12851da177e4SLinus Torvalds 1286cf8cdbe5SAndy Adamson static void 1287d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 12881da177e4SLinus Torvalds { 12891da177e4SLinus Torvalds int len = fh->size; 12908687b63aSAl Viro __be32 *p; 12911da177e4SLinus Torvalds 12921da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 1293e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1294e75bc1c8SBenny Halevy *p++ = cpu_to_be32(len); 12951da177e4SLinus Torvalds WRITEMEM(fh->data, len); 1296d017931cSAndy Adamson hdr->nops++; 1297dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 12981da177e4SLinus Torvalds } 12991da177e4SLinus Torvalds 1300cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 13011da177e4SLinus Torvalds { 13028687b63aSAl Viro __be32 *p; 13031da177e4SLinus Torvalds 13041da177e4SLinus Torvalds RESERVE_SPACE(4); 1305e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTROOTFH); 1306d017931cSAndy Adamson hdr->nops++; 1307dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13081da177e4SLinus Torvalds } 13091da177e4SLinus Torvalds 13101da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 13111da177e4SLinus Torvalds { 13121da177e4SLinus Torvalds nfs4_stateid stateid; 13138687b63aSAl Viro __be32 *p; 13141da177e4SLinus Torvalds 13158ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE); 13161da177e4SLinus Torvalds if (ctx->state != NULL) { 13171da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 13188ae20abdSTrond Myklebust WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 13191da177e4SLinus Torvalds } else 13208ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 13211da177e4SLinus Torvalds } 13221da177e4SLinus Torvalds 1323cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13241da177e4SLinus Torvalds { 13258687b63aSAl Viro __be32 *p; 13261da177e4SLinus Torvalds 13271da177e4SLinus Torvalds RESERVE_SPACE(4); 1328e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READ); 13291da177e4SLinus Torvalds 13301da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13311da177e4SLinus Torvalds 13321da177e4SLinus Torvalds RESERVE_SPACE(12); 1333b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1334e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->count); 1335d017931cSAndy Adamson hdr->nops++; 1336dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 13371da177e4SLinus Torvalds } 13381da177e4SLinus Torvalds 1339cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 13401da177e4SLinus Torvalds { 134197d312d0SManoj Naik uint32_t attrs[2] = { 134297d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 134397d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 134497d312d0SManoj Naik }; 13458687b63aSAl Viro __be32 *p; 13461da177e4SLinus Torvalds 13478ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 1348e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READDIR); 1349b95be5a9SBenny Halevy p = xdr_encode_hyper(p, readdir->cookie); 13508ae20abdSTrond Myklebust WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 1351e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ 1352e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count); 1353e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 135497d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 135597d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 135697d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 135797d312d0SManoj Naik else 135897d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1359e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 1360e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1361d017931cSAndy Adamson hdr->nops++; 1362dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 136344109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 136444109241SFred Isaman __func__, 1365eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1366eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1367eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1368eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1369eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 13701da177e4SLinus Torvalds } 13711da177e4SLinus Torvalds 1372cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 13731da177e4SLinus Torvalds { 13748687b63aSAl Viro __be32 *p; 13751da177e4SLinus Torvalds 13761da177e4SLinus Torvalds RESERVE_SPACE(4); 1377e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READLINK); 1378d017931cSAndy Adamson hdr->nops++; 1379dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 13801da177e4SLinus Torvalds } 13811da177e4SLinus Torvalds 1382cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13831da177e4SLinus Torvalds { 13848687b63aSAl Viro __be32 *p; 13851da177e4SLinus Torvalds 13861da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 1387e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1388e75bc1c8SBenny Halevy *p++ = cpu_to_be32(name->len); 13891da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 1390d017931cSAndy Adamson hdr->nops++; 1391dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 13921da177e4SLinus Torvalds } 13931da177e4SLinus Torvalds 1394cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 13951da177e4SLinus Torvalds { 13968687b63aSAl Viro __be32 *p; 13971da177e4SLinus Torvalds 13981da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 1399e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENAME); 1400e75bc1c8SBenny Halevy *p++ = cpu_to_be32(oldname->len); 14011da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 14021da177e4SLinus Torvalds 14031da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 1404e75bc1c8SBenny Halevy *p++ = cpu_to_be32(newname->len); 14051da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 1406d017931cSAndy Adamson hdr->nops++; 1407dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14081da177e4SLinus Torvalds } 14091da177e4SLinus Torvalds 1410cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14111da177e4SLinus Torvalds { 14128687b63aSAl Viro __be32 *p; 14131da177e4SLinus Torvalds 14141da177e4SLinus Torvalds RESERVE_SPACE(12); 1415e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 1416b95be5a9SBenny Halevy p = xdr_encode_hyper(p, client_stateid->cl_clientid); 1417d017931cSAndy Adamson hdr->nops++; 1418dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 14191da177e4SLinus Torvalds } 14201da177e4SLinus Torvalds 1421cf8cdbe5SAndy Adamson static void 1422d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 142356ae19f3STrond Myklebust { 14248687b63aSAl Viro __be32 *p; 142556ae19f3STrond Myklebust 142656ae19f3STrond Myklebust RESERVE_SPACE(4); 1427e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RESTOREFH); 1428d017931cSAndy Adamson hdr->nops++; 1429dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 143056ae19f3STrond Myklebust } 143156ae19f3STrond Myklebust 143256ae19f3STrond Myklebust static int 1433d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 143423ec6965SJ. Bruce Fields { 14358687b63aSAl Viro __be32 *p; 143623ec6965SJ. Bruce Fields 14378ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1438e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 14398ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 144023ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 1441e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1442e75bc1c8SBenny Halevy *p++ = cpu_to_be32(FATTR4_WORD0_ACL); 144323ec6965SJ. Bruce Fields if (arg->acl_len % 4) 144423ec6965SJ. Bruce Fields return -EINVAL; 144523ec6965SJ. Bruce Fields RESERVE_SPACE(4); 1446e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->acl_len); 144723ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1448d017931cSAndy Adamson hdr->nops++; 1449dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 145023ec6965SJ. Bruce Fields return 0; 145123ec6965SJ. Bruce Fields } 145223ec6965SJ. Bruce Fields 1453cf8cdbe5SAndy Adamson static void 1454d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14551da177e4SLinus Torvalds { 14568687b63aSAl Viro __be32 *p; 14571da177e4SLinus Torvalds 14581da177e4SLinus Torvalds RESERVE_SPACE(4); 1459e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SAVEFH); 1460d017931cSAndy Adamson hdr->nops++; 1461dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 14621da177e4SLinus Torvalds } 14631da177e4SLinus Torvalds 1464cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 14651da177e4SLinus Torvalds { 14668687b63aSAl Viro __be32 *p; 14671da177e4SLinus Torvalds 14688ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 1469e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 14708ae20abdSTrond Myklebust WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 1471d017931cSAndy Adamson hdr->nops++; 1472dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1473cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 14741da177e4SLinus Torvalds } 14751da177e4SLinus Torvalds 1476cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 14771da177e4SLinus Torvalds { 14788687b63aSAl Viro __be32 *p; 14791da177e4SLinus Torvalds 14808ae20abdSTrond Myklebust RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 1481e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 14828ae20abdSTrond Myklebust WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 14831da177e4SLinus Torvalds 14841da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 14851da177e4SLinus Torvalds RESERVE_SPACE(4); 1486e75bc1c8SBenny Halevy *p++ = cpu_to_be32(setclientid->sc_prog); 14871da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 14881da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 14891da177e4SLinus Torvalds RESERVE_SPACE(4); 1490e75bc1c8SBenny Halevy *p++ = cpu_to_be32(setclientid->sc_cb_ident); 1491d017931cSAndy Adamson hdr->nops++; 1492dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 14931da177e4SLinus Torvalds } 14941da177e4SLinus Torvalds 1495cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 14961da177e4SLinus Torvalds { 14978687b63aSAl Viro __be32 *p; 14981da177e4SLinus Torvalds 14998ae20abdSTrond Myklebust RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 1500e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1501b95be5a9SBenny Halevy p = xdr_encode_hyper(p, client_state->cl_clientid); 15028ae20abdSTrond Myklebust WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1503d017931cSAndy Adamson hdr->nops++; 1504dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15051da177e4SLinus Torvalds } 15061da177e4SLinus Torvalds 1507cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15081da177e4SLinus Torvalds { 15098687b63aSAl Viro __be32 *p; 15101da177e4SLinus Torvalds 15111da177e4SLinus Torvalds RESERVE_SPACE(4); 1512e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_WRITE); 15131da177e4SLinus Torvalds 15141da177e4SLinus Torvalds encode_stateid(xdr, args->context); 15151da177e4SLinus Torvalds 15161da177e4SLinus Torvalds RESERVE_SPACE(16); 1517b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1518e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 1519e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->count); 15201da177e4SLinus Torvalds 15211da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1522d017931cSAndy Adamson hdr->nops++; 1523dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 15241da177e4SLinus Torvalds } 15251da177e4SLinus Torvalds 1526cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15271da177e4SLinus Torvalds { 15288687b63aSAl Viro __be32 *p; 15291da177e4SLinus Torvalds 15308ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 15311da177e4SLinus Torvalds 1532e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 15338ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1534d017931cSAndy Adamson hdr->nops++; 1535dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15361da177e4SLinus Torvalds } 15379b7b9fccSAndy Adamson 153899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15399b7b9fccSAndy Adamson /* NFSv4.1 operations */ 154099fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 154199fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 154299fe60d0SBenny Halevy struct compound_hdr *hdr) 154399fe60d0SBenny Halevy { 154499fe60d0SBenny Halevy __be32 *p; 154599fe60d0SBenny Halevy 154699fe60d0SBenny Halevy RESERVE_SPACE(4 + sizeof(args->verifier->data)); 1547e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 154899fe60d0SBenny Halevy WRITEMEM(args->verifier->data, sizeof(args->verifier->data)); 154999fe60d0SBenny Halevy 155099fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 155199fe60d0SBenny Halevy 155299fe60d0SBenny Halevy RESERVE_SPACE(12); 1553e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1554e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1555e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length implementation id array */ 155699fe60d0SBenny Halevy hdr->nops++; 155799fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 155899fe60d0SBenny Halevy } 1559fc931582SAndy Adamson 1560fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1561fc931582SAndy Adamson struct nfs41_create_session_args *args, 1562fc931582SAndy Adamson struct compound_hdr *hdr) 1563fc931582SAndy Adamson { 1564fc931582SAndy Adamson __be32 *p; 1565fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1566fc931582SAndy Adamson uint32_t len; 1567fc931582SAndy Adamson struct nfs_client *clp = args->client; 1568fc931582SAndy Adamson 1569fc931582SAndy Adamson RESERVE_SPACE(4); 1570e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1571fc931582SAndy Adamson 1572fc931582SAndy Adamson RESERVE_SPACE(8); 1573b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1574fc931582SAndy Adamson 1575fc931582SAndy Adamson RESERVE_SPACE(8); 1576e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1577e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1578fc931582SAndy Adamson 1579fc931582SAndy Adamson RESERVE_SPACE(2*28); /* 2 channel_attrs */ 1580fc931582SAndy Adamson /* Fore Channel */ 1581e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1582e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1583e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 1584e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1585e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1586e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1587e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1588fc931582SAndy Adamson 1589fc931582SAndy Adamson /* Back Channel */ 1590e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1591e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1592e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1593e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1594e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1595e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1596e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1597fc931582SAndy Adamson 1598fc931582SAndy Adamson RESERVE_SPACE(4); 1599e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1600fc931582SAndy Adamson 1601fc931582SAndy Adamson RESERVE_SPACE(4); /* # of security flavors */ 1602e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1603fc931582SAndy Adamson 1604fc931582SAndy Adamson RESERVE_SPACE(4); 1605e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1606fc931582SAndy Adamson 1607fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1608fc931582SAndy Adamson RESERVE_SPACE(4); 1609e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1610fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1611fc931582SAndy Adamson clp->cl_ipaddr); 1612fc931582SAndy Adamson RESERVE_SPACE(16 + len); 1613e75bc1c8SBenny Halevy *p++ = cpu_to_be32(len); 1614fc931582SAndy Adamson WRITEMEM(machine_name, len); 1615e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1616e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 1617e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* No more gids */ 1618fc931582SAndy Adamson hdr->nops++; 1619fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1620fc931582SAndy Adamson } 16210f3e66c6SAndy Adamson 16220f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16230f3e66c6SAndy Adamson struct nfs4_session *session, 16240f3e66c6SAndy Adamson struct compound_hdr *hdr) 16250f3e66c6SAndy Adamson { 16260f3e66c6SAndy Adamson __be32 *p; 16270f3e66c6SAndy Adamson RESERVE_SPACE(4 + NFS4_MAX_SESSIONID_LEN); 1628e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 16290f3e66c6SAndy Adamson WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 16300f3e66c6SAndy Adamson hdr->nops++; 16310f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 16320f3e66c6SAndy Adamson } 163399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 163499fe60d0SBenny Halevy 16359b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 16369b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 16379b7b9fccSAndy Adamson struct compound_hdr *hdr) 16389b7b9fccSAndy Adamson { 16399b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 16409b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1641fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1642fc01cea9SAndy Adamson struct nfs4_slot *slot; 1643fc01cea9SAndy Adamson __be32 *p; 16449b7b9fccSAndy Adamson 16459b7b9fccSAndy Adamson if (!session) 16469b7b9fccSAndy Adamson return; 16479b7b9fccSAndy Adamson 1648fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1649fc01cea9SAndy Adamson 1650fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1651fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1652fc01cea9SAndy Adamson 1653fc01cea9SAndy Adamson RESERVE_SPACE(4); 1654e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1655fc01cea9SAndy Adamson 1656fc01cea9SAndy Adamson /* 1657fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1658fc01cea9SAndy Adamson */ 1659fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1660fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1661fc01cea9SAndy Adamson __func__, 1662fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1663fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1664fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1665fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1666fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1667fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 1668fc01cea9SAndy Adamson RESERVE_SPACE(NFS4_MAX_SESSIONID_LEN + 16); 1669fc01cea9SAndy Adamson WRITEMEM(session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1670e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1671e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1672e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 1673e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_cache_this); 16749b7b9fccSAndy Adamson hdr->nops++; 16759b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 16769b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 16779b7b9fccSAndy Adamson } 16789b7b9fccSAndy Adamson 16791da177e4SLinus Torvalds /* 16801da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 16811da177e4SLinus Torvalds */ 16821da177e4SLinus Torvalds 168366cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 168466cc0429SBenny Halevy { 168566cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 168666cc0429SBenny Halevy if (args->sa_session) 168766cc0429SBenny Halevy return args->sa_session->clp->cl_minorversion; 168866cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 168966cc0429SBenny Halevy return 0; 169066cc0429SBenny Halevy } 169166cc0429SBenny Halevy 16921da177e4SLinus Torvalds /* 16931da177e4SLinus Torvalds * Encode an ACCESS request 16941da177e4SLinus Torvalds */ 16958687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 16961da177e4SLinus Torvalds { 16971da177e4SLinus Torvalds struct xdr_stream xdr; 16981da177e4SLinus Torvalds struct compound_hdr hdr = { 169966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17001da177e4SLinus Torvalds }; 17011da177e4SLinus Torvalds 17021da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17030c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17049b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1705cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1706cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1707cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1708d017931cSAndy Adamson encode_nops(&hdr); 1709cf8cdbe5SAndy Adamson return 0; 17101da177e4SLinus Torvalds } 17111da177e4SLinus Torvalds 17121da177e4SLinus Torvalds /* 17131da177e4SLinus Torvalds * Encode LOOKUP request 17141da177e4SLinus Torvalds */ 17158687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 17161da177e4SLinus Torvalds { 17171da177e4SLinus Torvalds struct xdr_stream xdr; 17181da177e4SLinus Torvalds struct compound_hdr hdr = { 171966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17201da177e4SLinus Torvalds }; 17211da177e4SLinus Torvalds 17221da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17230c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17249b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1725cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1726cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1727cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1728cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1729d017931cSAndy Adamson encode_nops(&hdr); 1730cf8cdbe5SAndy Adamson return 0; 17311da177e4SLinus Torvalds } 17321da177e4SLinus Torvalds 17331da177e4SLinus Torvalds /* 17341da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 17351da177e4SLinus Torvalds */ 17368687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 17371da177e4SLinus Torvalds { 17381da177e4SLinus Torvalds struct xdr_stream xdr; 17391da177e4SLinus Torvalds struct compound_hdr hdr = { 174066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17411da177e4SLinus Torvalds }; 17421da177e4SLinus Torvalds 17431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17440c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17459b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1746cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1747cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1748cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1749d017931cSAndy Adamson encode_nops(&hdr); 1750cf8cdbe5SAndy Adamson return 0; 17511da177e4SLinus Torvalds } 17521da177e4SLinus Torvalds 17531da177e4SLinus Torvalds /* 17541da177e4SLinus Torvalds * Encode REMOVE request 17551da177e4SLinus Torvalds */ 17564fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 17571da177e4SLinus Torvalds { 17581da177e4SLinus Torvalds struct xdr_stream xdr; 17591da177e4SLinus Torvalds struct compound_hdr hdr = { 176066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17611da177e4SLinus Torvalds }; 17621da177e4SLinus Torvalds 17631da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17640c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17659b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1766cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1767cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1768cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1769d017931cSAndy Adamson encode_nops(&hdr); 1770cf8cdbe5SAndy Adamson return 0; 17711da177e4SLinus Torvalds } 17721da177e4SLinus Torvalds 17731da177e4SLinus Torvalds /* 17741da177e4SLinus Torvalds * Encode RENAME request 17751da177e4SLinus Torvalds */ 17768687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 17771da177e4SLinus Torvalds { 17781da177e4SLinus Torvalds struct xdr_stream xdr; 17791da177e4SLinus Torvalds struct compound_hdr hdr = { 178066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17811da177e4SLinus Torvalds }; 17821da177e4SLinus Torvalds 17831da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17840c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17859b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1786cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1787cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1788cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1789cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1790cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1791cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1792cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1793d017931cSAndy Adamson encode_nops(&hdr); 1794cf8cdbe5SAndy Adamson return 0; 17951da177e4SLinus Torvalds } 17961da177e4SLinus Torvalds 17971da177e4SLinus Torvalds /* 17981da177e4SLinus Torvalds * Encode LINK request 17991da177e4SLinus Torvalds */ 18008687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 18011da177e4SLinus Torvalds { 18021da177e4SLinus Torvalds struct xdr_stream xdr; 18031da177e4SLinus Torvalds struct compound_hdr hdr = { 180466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18051da177e4SLinus Torvalds }; 18061da177e4SLinus Torvalds 18071da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18080c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18099b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1810cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1811cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1812cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1813cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1814cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1815cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1816cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1817d017931cSAndy Adamson encode_nops(&hdr); 1818cf8cdbe5SAndy Adamson return 0; 18191da177e4SLinus Torvalds } 18201da177e4SLinus Torvalds 18211da177e4SLinus Torvalds /* 18221da177e4SLinus Torvalds * Encode CREATE request 18231da177e4SLinus Torvalds */ 18248687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18251da177e4SLinus Torvalds { 18261da177e4SLinus Torvalds struct xdr_stream xdr; 18271da177e4SLinus Torvalds struct compound_hdr hdr = { 182866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18291da177e4SLinus Torvalds }; 18301da177e4SLinus Torvalds 18311da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18320c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18339b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1834cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1835cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1836cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1837cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1838cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1839cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1840cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1841d017931cSAndy Adamson encode_nops(&hdr); 1842cf8cdbe5SAndy Adamson return 0; 18431da177e4SLinus Torvalds } 18441da177e4SLinus Torvalds 18451da177e4SLinus Torvalds /* 18461da177e4SLinus Torvalds * Encode SYMLINK request 18471da177e4SLinus Torvalds */ 18488687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18491da177e4SLinus Torvalds { 18501da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 18511da177e4SLinus Torvalds } 18521da177e4SLinus Torvalds 18531da177e4SLinus Torvalds /* 18541da177e4SLinus Torvalds * Encode GETATTR request 18551da177e4SLinus Torvalds */ 18568687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 18571da177e4SLinus Torvalds { 18581da177e4SLinus Torvalds struct xdr_stream xdr; 18591da177e4SLinus Torvalds struct compound_hdr hdr = { 186066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18611da177e4SLinus Torvalds }; 18621da177e4SLinus Torvalds 18631da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18640c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18659b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1866cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1867cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1868d017931cSAndy Adamson encode_nops(&hdr); 1869cf8cdbe5SAndy Adamson return 0; 18701da177e4SLinus Torvalds } 18711da177e4SLinus Torvalds 18721da177e4SLinus Torvalds /* 18731da177e4SLinus Torvalds * Encode a CLOSE request 18741da177e4SLinus Torvalds */ 18758687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 18761da177e4SLinus Torvalds { 18771da177e4SLinus Torvalds struct xdr_stream xdr; 18781da177e4SLinus Torvalds struct compound_hdr hdr = { 187966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18801da177e4SLinus Torvalds }; 18811da177e4SLinus Torvalds 18821da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18830c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18849b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1885cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1886cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1887cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1888d017931cSAndy Adamson encode_nops(&hdr); 1889cf8cdbe5SAndy Adamson return 0; 18901da177e4SLinus Torvalds } 18911da177e4SLinus Torvalds 18921da177e4SLinus Torvalds /* 18931da177e4SLinus Torvalds * Encode an OPEN request 18941da177e4SLinus Torvalds */ 18958687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 18961da177e4SLinus Torvalds { 18971da177e4SLinus Torvalds struct xdr_stream xdr; 18981da177e4SLinus Torvalds struct compound_hdr hdr = { 189966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19001da177e4SLinus Torvalds }; 19011da177e4SLinus Torvalds 19021da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19030c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19049b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1905cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1906cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1907cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1908cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1909cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1910cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1911cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1912d017931cSAndy Adamson encode_nops(&hdr); 1913cf8cdbe5SAndy Adamson return 0; 19141da177e4SLinus Torvalds } 19151da177e4SLinus Torvalds 19161da177e4SLinus Torvalds /* 19171da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 19181da177e4SLinus Torvalds */ 19198687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 19201da177e4SLinus Torvalds { 19211da177e4SLinus Torvalds struct xdr_stream xdr; 19221da177e4SLinus Torvalds struct compound_hdr hdr = { 1923d017931cSAndy Adamson .nops = 0, 19241da177e4SLinus Torvalds }; 19251da177e4SLinus Torvalds 19261da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19270c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1928cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1929cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1930d017931cSAndy Adamson encode_nops(&hdr); 1931cf8cdbe5SAndy Adamson return 0; 19321da177e4SLinus Torvalds } 19331da177e4SLinus Torvalds 19341da177e4SLinus Torvalds /* 19351da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 19361da177e4SLinus Torvalds */ 19378687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19381da177e4SLinus Torvalds { 19391da177e4SLinus Torvalds struct xdr_stream xdr; 19401da177e4SLinus Torvalds struct compound_hdr hdr = { 194166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19421da177e4SLinus Torvalds }; 19431da177e4SLinus Torvalds 19441da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19450c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19469b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1947cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1948cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1949cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1950d017931cSAndy Adamson encode_nops(&hdr); 1951cf8cdbe5SAndy Adamson return 0; 19521da177e4SLinus Torvalds } 19531da177e4SLinus Torvalds 19541da177e4SLinus Torvalds /* 19551da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 19561da177e4SLinus Torvalds */ 19578687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19581da177e4SLinus Torvalds { 19591da177e4SLinus Torvalds struct xdr_stream xdr; 19601da177e4SLinus Torvalds struct compound_hdr hdr = { 196166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19621da177e4SLinus Torvalds }; 19631da177e4SLinus Torvalds 19641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19650c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19669b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1967cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1968cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1969cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1970d017931cSAndy Adamson encode_nops(&hdr); 1971cf8cdbe5SAndy Adamson return 0; 19721da177e4SLinus Torvalds } 19731da177e4SLinus Torvalds 19741da177e4SLinus Torvalds /* 19751da177e4SLinus Torvalds * Encode a LOCK request 19761da177e4SLinus Torvalds */ 19778687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 19781da177e4SLinus Torvalds { 19791da177e4SLinus Torvalds struct xdr_stream xdr; 19801da177e4SLinus Torvalds struct compound_hdr hdr = { 198166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19821da177e4SLinus Torvalds }; 19831da177e4SLinus Torvalds 19841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1987cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1988cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 1989d017931cSAndy Adamson encode_nops(&hdr); 1990cf8cdbe5SAndy Adamson return 0; 19911da177e4SLinus Torvalds } 19921da177e4SLinus Torvalds 19931da177e4SLinus Torvalds /* 19941da177e4SLinus Torvalds * Encode a LOCKT request 19951da177e4SLinus Torvalds */ 19968687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 19971da177e4SLinus Torvalds { 19981da177e4SLinus Torvalds struct xdr_stream xdr; 19991da177e4SLinus Torvalds struct compound_hdr hdr = { 200066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20011da177e4SLinus Torvalds }; 20021da177e4SLinus Torvalds 20031da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20040c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20059b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2006cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2007cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 2008d017931cSAndy Adamson encode_nops(&hdr); 2009cf8cdbe5SAndy Adamson return 0; 20101da177e4SLinus Torvalds } 20111da177e4SLinus Torvalds 20121da177e4SLinus Torvalds /* 20131da177e4SLinus Torvalds * Encode a LOCKU request 20141da177e4SLinus Torvalds */ 20158687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 20161da177e4SLinus Torvalds { 20171da177e4SLinus Torvalds struct xdr_stream xdr; 20181da177e4SLinus Torvalds struct compound_hdr hdr = { 201966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20201da177e4SLinus Torvalds }; 20211da177e4SLinus Torvalds 20221da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20230c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20249b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2025cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2026cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 2027d017931cSAndy Adamson encode_nops(&hdr); 2028cf8cdbe5SAndy Adamson return 0; 20291da177e4SLinus Torvalds } 20301da177e4SLinus Torvalds 20311da177e4SLinus Torvalds /* 20321da177e4SLinus Torvalds * Encode a READLINK request 20331da177e4SLinus Torvalds */ 20348687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 20351da177e4SLinus Torvalds { 20361da177e4SLinus Torvalds struct xdr_stream xdr; 20371da177e4SLinus Torvalds struct compound_hdr hdr = { 203866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20391da177e4SLinus Torvalds }; 20401da177e4SLinus Torvalds 20411da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20420c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20439b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2044cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2045cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2046e3a535e1STrond Myklebust 204728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2048e3a535e1STrond Myklebust args->pgbase, args->pglen); 2049d017931cSAndy Adamson encode_nops(&hdr); 2050cf8cdbe5SAndy Adamson return 0; 20511da177e4SLinus Torvalds } 20521da177e4SLinus Torvalds 20531da177e4SLinus Torvalds /* 20541da177e4SLinus Torvalds * Encode a READDIR request 20551da177e4SLinus Torvalds */ 20568687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 20571da177e4SLinus Torvalds { 20581da177e4SLinus Torvalds struct xdr_stream xdr; 20591da177e4SLinus Torvalds struct compound_hdr hdr = { 206066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20611da177e4SLinus Torvalds }; 20621da177e4SLinus Torvalds 20631da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20640c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20659b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2066cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2067cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2068d6ac02dfSTrond Myklebust 206928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2070d6ac02dfSTrond Myklebust args->pgbase, args->count); 2071d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 207228f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2073d6ac02dfSTrond Myklebust args->pgbase, args->count); 2074d017931cSAndy Adamson encode_nops(&hdr); 2075cf8cdbe5SAndy Adamson return 0; 20761da177e4SLinus Torvalds } 20771da177e4SLinus Torvalds 20781da177e4SLinus Torvalds /* 20791da177e4SLinus Torvalds * Encode a READ request 20801da177e4SLinus Torvalds */ 20818687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 20821da177e4SLinus Torvalds { 20831da177e4SLinus Torvalds struct xdr_stream xdr; 20841da177e4SLinus Torvalds struct compound_hdr hdr = { 208566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20861da177e4SLinus Torvalds }; 20871da177e4SLinus Torvalds 20881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20890c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20909b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2091cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2092cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 20931da177e4SLinus Torvalds 209428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 20951da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 20964f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2097d017931cSAndy Adamson encode_nops(&hdr); 2098cf8cdbe5SAndy Adamson return 0; 20991da177e4SLinus Torvalds } 21001da177e4SLinus Torvalds 21011da177e4SLinus Torvalds /* 21021da177e4SLinus Torvalds * Encode an SETATTR request 21031da177e4SLinus Torvalds */ 21048687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 21051da177e4SLinus Torvalds { 21061da177e4SLinus Torvalds struct xdr_stream xdr; 21071da177e4SLinus Torvalds struct compound_hdr hdr = { 210866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21091da177e4SLinus Torvalds }; 21101da177e4SLinus Torvalds 21111da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21120c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21139b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2114cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2115cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2116cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2117d017931cSAndy Adamson encode_nops(&hdr); 2118cf8cdbe5SAndy Adamson return 0; 21191da177e4SLinus Torvalds } 21201da177e4SLinus Torvalds 21211da177e4SLinus Torvalds /* 2122029d105eSJ. Bruce Fields * Encode a GETACL request 2123029d105eSJ. Bruce Fields */ 2124029d105eSJ. Bruce Fields static int 21258687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2126029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2127029d105eSJ. Bruce Fields { 2128029d105eSJ. Bruce Fields struct xdr_stream xdr; 2129029d105eSJ. Bruce Fields struct compound_hdr hdr = { 213066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2131029d105eSJ. Bruce Fields }; 213228f56694SBenny Halevy uint32_t replen; 2133029d105eSJ. Bruce Fields 2134029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21350c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21369b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2137cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 213828f56694SBenny Halevy replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; 2139cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2140cf8cdbe5SAndy Adamson 214128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2142029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2143d017931cSAndy Adamson encode_nops(&hdr); 2144cf8cdbe5SAndy Adamson return 0; 2145029d105eSJ. Bruce Fields } 2146029d105eSJ. Bruce Fields 2147029d105eSJ. Bruce Fields /* 21481da177e4SLinus Torvalds * Encode a WRITE request 21491da177e4SLinus Torvalds */ 21508687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21511da177e4SLinus Torvalds { 21521da177e4SLinus Torvalds struct xdr_stream xdr; 21531da177e4SLinus Torvalds struct compound_hdr hdr = { 215466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21551da177e4SLinus Torvalds }; 21561da177e4SLinus Torvalds 21571da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21580c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21599b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2160cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2161cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 21624f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2163cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2164d017931cSAndy Adamson encode_nops(&hdr); 2165cf8cdbe5SAndy Adamson return 0; 21661da177e4SLinus Torvalds } 21671da177e4SLinus Torvalds 21681da177e4SLinus Torvalds /* 21691da177e4SLinus Torvalds * a COMMIT request 21701da177e4SLinus Torvalds */ 21718687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21721da177e4SLinus Torvalds { 21731da177e4SLinus Torvalds struct xdr_stream xdr; 21741da177e4SLinus Torvalds struct compound_hdr hdr = { 217566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21761da177e4SLinus Torvalds }; 21771da177e4SLinus Torvalds 21781da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21790c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21809b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2181cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2182cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2183cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2184d017931cSAndy Adamson encode_nops(&hdr); 2185cf8cdbe5SAndy Adamson return 0; 21861da177e4SLinus Torvalds } 21871da177e4SLinus Torvalds 21881da177e4SLinus Torvalds /* 21891da177e4SLinus Torvalds * FSINFO request 21901da177e4SLinus Torvalds */ 21918687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 21921da177e4SLinus Torvalds { 21931da177e4SLinus Torvalds struct xdr_stream xdr; 21941da177e4SLinus Torvalds struct compound_hdr hdr = { 219566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21961da177e4SLinus Torvalds }; 21971da177e4SLinus Torvalds 21981da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21990c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22009b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2201cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2202cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2203d017931cSAndy Adamson encode_nops(&hdr); 2204cf8cdbe5SAndy Adamson return 0; 22051da177e4SLinus Torvalds } 22061da177e4SLinus Torvalds 22071da177e4SLinus Torvalds /* 22081da177e4SLinus Torvalds * a PATHCONF request 22091da177e4SLinus Torvalds */ 22108687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 22111da177e4SLinus Torvalds { 22121da177e4SLinus Torvalds struct xdr_stream xdr; 22131da177e4SLinus Torvalds struct compound_hdr hdr = { 221466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22151da177e4SLinus Torvalds }; 22161da177e4SLinus Torvalds 22171da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22180c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22199b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2220cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2221cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2222d017931cSAndy Adamson &hdr); 2223d017931cSAndy Adamson encode_nops(&hdr); 2224cf8cdbe5SAndy Adamson return 0; 22251da177e4SLinus Torvalds } 22261da177e4SLinus Torvalds 22271da177e4SLinus Torvalds /* 22281da177e4SLinus Torvalds * a STATFS request 22291da177e4SLinus Torvalds */ 22308687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 22311da177e4SLinus Torvalds { 22321da177e4SLinus Torvalds struct xdr_stream xdr; 22331da177e4SLinus Torvalds struct compound_hdr hdr = { 223466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22351da177e4SLinus Torvalds }; 22361da177e4SLinus Torvalds 22371da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22380c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22399b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2240cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2241cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2242d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2243d017931cSAndy Adamson encode_nops(&hdr); 2244cf8cdbe5SAndy Adamson return 0; 22451da177e4SLinus Torvalds } 22461da177e4SLinus Torvalds 22471da177e4SLinus Torvalds /* 22481da177e4SLinus Torvalds * GETATTR_BITMAP request 22491da177e4SLinus Torvalds */ 225043652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 225143652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 22521da177e4SLinus Torvalds { 22531da177e4SLinus Torvalds struct xdr_stream xdr; 22541da177e4SLinus Torvalds struct compound_hdr hdr = { 225566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22561da177e4SLinus Torvalds }; 22571da177e4SLinus Torvalds 22581da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22590c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22609b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 226143652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2262cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 22631da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 22641da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2265d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2266d017931cSAndy Adamson encode_nops(&hdr); 2267cf8cdbe5SAndy Adamson return 0; 22681da177e4SLinus Torvalds } 22691da177e4SLinus Torvalds 22701da177e4SLinus Torvalds /* 22711da177e4SLinus Torvalds * a RENEW request 22721da177e4SLinus Torvalds */ 22738687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22741da177e4SLinus Torvalds { 22751da177e4SLinus Torvalds struct xdr_stream xdr; 22761da177e4SLinus Torvalds struct compound_hdr hdr = { 2277d017931cSAndy Adamson .nops = 0, 22781da177e4SLinus Torvalds }; 22791da177e4SLinus Torvalds 22801da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22810c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2282cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2283d017931cSAndy Adamson encode_nops(&hdr); 2284cf8cdbe5SAndy Adamson return 0; 22851da177e4SLinus Torvalds } 22861da177e4SLinus Torvalds 22871da177e4SLinus Torvalds /* 22881da177e4SLinus Torvalds * a SETCLIENTID request 22891da177e4SLinus Torvalds */ 22908687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 22911da177e4SLinus Torvalds { 22921da177e4SLinus Torvalds struct xdr_stream xdr; 22931da177e4SLinus Torvalds struct compound_hdr hdr = { 2294d017931cSAndy Adamson .nops = 0, 22951da177e4SLinus Torvalds }; 22961da177e4SLinus Torvalds 22971da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22980c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2299cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2300d017931cSAndy Adamson encode_nops(&hdr); 2301cf8cdbe5SAndy Adamson return 0; 23021da177e4SLinus Torvalds } 23031da177e4SLinus Torvalds 23041da177e4SLinus Torvalds /* 23051da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 23061da177e4SLinus Torvalds */ 23078687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 23081da177e4SLinus Torvalds { 23091da177e4SLinus Torvalds struct xdr_stream xdr; 23101da177e4SLinus Torvalds struct compound_hdr hdr = { 2311d017931cSAndy Adamson .nops = 0, 23121da177e4SLinus Torvalds }; 23131da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 23141da177e4SLinus Torvalds 23151da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23160c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2317cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 2318cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2319cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2320d017931cSAndy Adamson encode_nops(&hdr); 2321cf8cdbe5SAndy Adamson return 0; 23221da177e4SLinus Torvalds } 23231da177e4SLinus Torvalds 23241da177e4SLinus Torvalds /* 23251da177e4SLinus Torvalds * DELEGRETURN request 23261da177e4SLinus Torvalds */ 23278687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 23281da177e4SLinus Torvalds { 23291da177e4SLinus Torvalds struct xdr_stream xdr; 23301da177e4SLinus Torvalds struct compound_hdr hdr = { 233166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23321da177e4SLinus Torvalds }; 23331da177e4SLinus Torvalds 23341da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23350c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23369b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2337cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2338cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2339cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2340d017931cSAndy Adamson encode_nops(&hdr); 2341cf8cdbe5SAndy Adamson return 0; 23421da177e4SLinus Torvalds } 23431da177e4SLinus Torvalds 23441da177e4SLinus Torvalds /* 2345683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2346683b57b4STrond Myklebust */ 23478687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2348683b57b4STrond Myklebust { 2349683b57b4STrond Myklebust struct xdr_stream xdr; 2350683b57b4STrond Myklebust struct compound_hdr hdr = { 235166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2352683b57b4STrond Myklebust }; 235328f56694SBenny Halevy uint32_t replen; 2354683b57b4STrond Myklebust 2355683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23560c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23579b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2358cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2359cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 236028f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2361cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2362cf8cdbe5SAndy Adamson 236328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2364683b57b4STrond Myklebust 0, PAGE_SIZE); 2365d017931cSAndy Adamson encode_nops(&hdr); 2366cf8cdbe5SAndy Adamson return 0; 2367683b57b4STrond Myklebust } 2368683b57b4STrond Myklebust 236999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 237099fe60d0SBenny Halevy /* 237199fe60d0SBenny Halevy * EXCHANGE_ID request 237299fe60d0SBenny Halevy */ 237399fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 237499fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 237599fe60d0SBenny Halevy { 237699fe60d0SBenny Halevy struct xdr_stream xdr; 237799fe60d0SBenny Halevy struct compound_hdr hdr = { 237899fe60d0SBenny Halevy .minorversion = args->client->cl_minorversion, 237999fe60d0SBenny Halevy }; 238099fe60d0SBenny Halevy 238199fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 238299fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 238399fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 238499fe60d0SBenny Halevy encode_nops(&hdr); 238599fe60d0SBenny Halevy return 0; 238699fe60d0SBenny Halevy } 23872050f0ccSAndy Adamson 23882050f0ccSAndy Adamson /* 2389fc931582SAndy Adamson * a CREATE_SESSION request 2390fc931582SAndy Adamson */ 2391fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2392fc931582SAndy Adamson struct nfs41_create_session_args *args) 2393fc931582SAndy Adamson { 2394fc931582SAndy Adamson struct xdr_stream xdr; 2395fc931582SAndy Adamson struct compound_hdr hdr = { 2396fc931582SAndy Adamson .minorversion = args->client->cl_minorversion, 2397fc931582SAndy Adamson }; 2398fc931582SAndy Adamson 2399fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2400fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2401fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2402fc931582SAndy Adamson encode_nops(&hdr); 2403fc931582SAndy Adamson return 0; 2404fc931582SAndy Adamson } 2405fc931582SAndy Adamson 2406fc931582SAndy Adamson /* 24070f3e66c6SAndy Adamson * a DESTROY_SESSION request 24080f3e66c6SAndy Adamson */ 24090f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 24100f3e66c6SAndy Adamson struct nfs4_session *session) 24110f3e66c6SAndy Adamson { 24120f3e66c6SAndy Adamson struct xdr_stream xdr; 24130f3e66c6SAndy Adamson struct compound_hdr hdr = { 24140f3e66c6SAndy Adamson .minorversion = session->clp->cl_minorversion, 24150f3e66c6SAndy Adamson }; 24160f3e66c6SAndy Adamson 24170f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24180f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24190f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 24200f3e66c6SAndy Adamson encode_nops(&hdr); 24210f3e66c6SAndy Adamson return 0; 24220f3e66c6SAndy Adamson } 24230f3e66c6SAndy Adamson 24240f3e66c6SAndy Adamson /* 2425fc01cea9SAndy Adamson * a SEQUENCE request 2426fc01cea9SAndy Adamson */ 2427fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2428fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2429fc01cea9SAndy Adamson { 2430fc01cea9SAndy Adamson struct xdr_stream xdr; 2431fc01cea9SAndy Adamson struct compound_hdr hdr = { 2432fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2433fc01cea9SAndy Adamson }; 2434fc01cea9SAndy Adamson 2435fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2436fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2437fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2438fc01cea9SAndy Adamson encode_nops(&hdr); 2439fc01cea9SAndy Adamson return 0; 2440fc01cea9SAndy Adamson } 2441fc01cea9SAndy Adamson 2442fc01cea9SAndy Adamson /* 24432050f0ccSAndy Adamson * a GET_LEASE_TIME request 24442050f0ccSAndy Adamson */ 24452050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 24462050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 24472050f0ccSAndy Adamson { 24482050f0ccSAndy Adamson struct xdr_stream xdr; 24492050f0ccSAndy Adamson struct compound_hdr hdr = { 24502050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 24512050f0ccSAndy Adamson }; 24522050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24532050f0ccSAndy Adamson 24542050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24552050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24562050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 24572050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 24582050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 24592050f0ccSAndy Adamson encode_nops(&hdr); 24602050f0ccSAndy Adamson return 0; 24612050f0ccSAndy Adamson } 246299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 246399fe60d0SBenny Halevy 2464683b57b4STrond Myklebust /* 24651da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 24661da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 24671da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 24681da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 24691da177e4SLinus Torvalds * 24701da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 24711da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 24721da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 24731da177e4SLinus Torvalds */ 24741da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 24751da177e4SLinus Torvalds #define READ64(x) do { \ 24761da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 24771da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 24781da177e4SLinus Torvalds } while (0) 24791da177e4SLinus Torvalds #define READTIME(x) do { \ 24801da177e4SLinus Torvalds p++; \ 24811da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 24821da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 24831da177e4SLinus Torvalds } while (0) 24841da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 24851da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 24861da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 24871da177e4SLinus Torvalds } while (0) 24881da177e4SLinus Torvalds 24891da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 24901da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2491e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2492fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 24933110ff80SHarvey Harrison " buffer\n", __func__); \ 2494fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 24953110ff80SHarvey Harrison __func__, xdr->p, nbytes, xdr->end); \ 24961da177e4SLinus Torvalds return -EIO; \ 24971da177e4SLinus Torvalds } \ 24981da177e4SLinus Torvalds } while (0) 24991da177e4SLinus Torvalds 2500683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 25011da177e4SLinus Torvalds { 25028687b63aSAl Viro __be32 *p; 25031da177e4SLinus Torvalds 25041da177e4SLinus Torvalds READ_BUF(4); 25051da177e4SLinus Torvalds READ32(*len); 25061da177e4SLinus Torvalds READ_BUF(*len); 25071da177e4SLinus Torvalds *string = (char *)p; 25081da177e4SLinus Torvalds return 0; 25091da177e4SLinus Torvalds } 25101da177e4SLinus Torvalds 25111da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 25121da177e4SLinus Torvalds { 25138687b63aSAl Viro __be32 *p; 25141da177e4SLinus Torvalds 25151da177e4SLinus Torvalds READ_BUF(8); 25161da177e4SLinus Torvalds READ32(hdr->status); 25171da177e4SLinus Torvalds READ32(hdr->taglen); 25181da177e4SLinus Torvalds 25191da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 25201da177e4SLinus Torvalds hdr->tag = (char *)p; 25211da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 25221da177e4SLinus Torvalds READ32(hdr->nops); 2523aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2524aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 25251da177e4SLinus Torvalds return 0; 25261da177e4SLinus Torvalds } 25271da177e4SLinus Torvalds 25281da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 25291da177e4SLinus Torvalds { 25308687b63aSAl Viro __be32 *p; 25311da177e4SLinus Torvalds uint32_t opnum; 25321da177e4SLinus Torvalds int32_t nfserr; 25331da177e4SLinus Torvalds 25341da177e4SLinus Torvalds READ_BUF(8); 25351da177e4SLinus Torvalds READ32(opnum); 25361da177e4SLinus Torvalds if (opnum != expected) { 2537fe82a183SChuck Lever dprintk("nfs: Server returned operation" 25381da177e4SLinus Torvalds " %d but we issued a request for %d\n", 25391da177e4SLinus Torvalds opnum, expected); 25401da177e4SLinus Torvalds return -EIO; 25411da177e4SLinus Torvalds } 25421da177e4SLinus Torvalds READ32(nfserr); 25431da177e4SLinus Torvalds if (nfserr != NFS_OK) 2544856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 25451da177e4SLinus Torvalds return 0; 25461da177e4SLinus Torvalds } 25471da177e4SLinus Torvalds 25481da177e4SLinus Torvalds /* Dummy routine */ 2549adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 25501da177e4SLinus Torvalds { 25518687b63aSAl Viro __be32 *p; 2552683b57b4STrond Myklebust unsigned int strlen; 25531da177e4SLinus Torvalds char *str; 25541da177e4SLinus Torvalds 25551da177e4SLinus Torvalds READ_BUF(12); 25561da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 25571da177e4SLinus Torvalds } 25581da177e4SLinus Torvalds 25591da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 25601da177e4SLinus Torvalds { 25618687b63aSAl Viro uint32_t bmlen; 25628687b63aSAl Viro __be32 *p; 25631da177e4SLinus Torvalds 25641da177e4SLinus Torvalds READ_BUF(4); 25651da177e4SLinus Torvalds READ32(bmlen); 25661da177e4SLinus Torvalds 25671da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 25681da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 25691da177e4SLinus Torvalds if (bmlen > 0) { 25701da177e4SLinus Torvalds READ32(bitmap[0]); 25711da177e4SLinus Torvalds if (bmlen > 1) 25721da177e4SLinus Torvalds READ32(bitmap[1]); 25731da177e4SLinus Torvalds } 25741da177e4SLinus Torvalds return 0; 25751da177e4SLinus Torvalds } 25761da177e4SLinus Torvalds 25778687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 25781da177e4SLinus Torvalds { 25798687b63aSAl Viro __be32 *p; 25801da177e4SLinus Torvalds 25811da177e4SLinus Torvalds READ_BUF(4); 25821da177e4SLinus Torvalds READ32(*attrlen); 25831da177e4SLinus Torvalds *savep = xdr->p; 25841da177e4SLinus Torvalds return 0; 25851da177e4SLinus Torvalds } 25861da177e4SLinus Torvalds 25871da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 25881da177e4SLinus Torvalds { 25891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 25901da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 25911da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 25921da177e4SLinus Torvalds } else 25931da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 259444109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 25951da177e4SLinus Torvalds return 0; 25961da177e4SLinus Torvalds } 25971da177e4SLinus Torvalds 25981da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 25991da177e4SLinus Torvalds { 26008687b63aSAl Viro __be32 *p; 2601409924e4STrond Myklebust int ret = 0; 26021da177e4SLinus Torvalds 26031da177e4SLinus Torvalds *type = 0; 26041da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 26051da177e4SLinus Torvalds return -EIO; 26061da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 26071da177e4SLinus Torvalds READ_BUF(4); 26081da177e4SLinus Torvalds READ32(*type); 26091da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 26103110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 26111da177e4SLinus Torvalds return -EIO; 26121da177e4SLinus Torvalds } 26131da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2614409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 26151da177e4SLinus Torvalds } 2616bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2617409924e4STrond Myklebust return ret; 26181da177e4SLinus Torvalds } 26191da177e4SLinus Torvalds 26201da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 26211da177e4SLinus Torvalds { 26228687b63aSAl Viro __be32 *p; 2623409924e4STrond Myklebust int ret = 0; 26241da177e4SLinus Torvalds 26251da177e4SLinus Torvalds *change = 0; 26261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 26271da177e4SLinus Torvalds return -EIO; 26281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 26291da177e4SLinus Torvalds READ_BUF(8); 26301da177e4SLinus Torvalds READ64(*change); 26311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2632409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 26331da177e4SLinus Torvalds } 26343110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 26351da177e4SLinus Torvalds (unsigned long long)*change); 2636409924e4STrond Myklebust return ret; 26371da177e4SLinus Torvalds } 26381da177e4SLinus Torvalds 26391da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 26401da177e4SLinus Torvalds { 26418687b63aSAl Viro __be32 *p; 2642409924e4STrond Myklebust int ret = 0; 26431da177e4SLinus Torvalds 26441da177e4SLinus Torvalds *size = 0; 26451da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 26461da177e4SLinus Torvalds return -EIO; 26471da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 26481da177e4SLinus Torvalds READ_BUF(8); 26491da177e4SLinus Torvalds READ64(*size); 26501da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2651409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 26521da177e4SLinus Torvalds } 26533110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2654409924e4STrond Myklebust return ret; 26551da177e4SLinus Torvalds } 26561da177e4SLinus Torvalds 26571da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26581da177e4SLinus Torvalds { 26598687b63aSAl Viro __be32 *p; 26601da177e4SLinus Torvalds 26611da177e4SLinus Torvalds *res = 0; 26621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 26631da177e4SLinus Torvalds return -EIO; 26641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 26651da177e4SLinus Torvalds READ_BUF(4); 26661da177e4SLinus Torvalds READ32(*res); 26671da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 26681da177e4SLinus Torvalds } 26693110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 26701da177e4SLinus Torvalds return 0; 26711da177e4SLinus Torvalds } 26721da177e4SLinus Torvalds 26731da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26741da177e4SLinus Torvalds { 26758687b63aSAl Viro __be32 *p; 26761da177e4SLinus Torvalds 26771da177e4SLinus Torvalds *res = 0; 26781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 26791da177e4SLinus Torvalds return -EIO; 26801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 26811da177e4SLinus Torvalds READ_BUF(4); 26821da177e4SLinus Torvalds READ32(*res); 26831da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 26841da177e4SLinus Torvalds } 26853110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 26861da177e4SLinus Torvalds return 0; 26871da177e4SLinus Torvalds } 26881da177e4SLinus Torvalds 26898b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 26901da177e4SLinus Torvalds { 26918687b63aSAl Viro __be32 *p; 2692409924e4STrond Myklebust int ret = 0; 26931da177e4SLinus Torvalds 26941da177e4SLinus Torvalds fsid->major = 0; 26951da177e4SLinus Torvalds fsid->minor = 0; 26961da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 26971da177e4SLinus Torvalds return -EIO; 26981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 26991da177e4SLinus Torvalds READ_BUF(16); 27001da177e4SLinus Torvalds READ64(fsid->major); 27011da177e4SLinus Torvalds READ64(fsid->minor); 27021da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2703409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 27041da177e4SLinus Torvalds } 27053110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 27061da177e4SLinus Torvalds (unsigned long long)fsid->major, 27071da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2708409924e4STrond Myklebust return ret; 27091da177e4SLinus Torvalds } 27101da177e4SLinus Torvalds 27111da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27121da177e4SLinus Torvalds { 27138687b63aSAl Viro __be32 *p; 27141da177e4SLinus Torvalds 27151da177e4SLinus Torvalds *res = 60; 27161da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 27171da177e4SLinus Torvalds return -EIO; 27181da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 27191da177e4SLinus Torvalds READ_BUF(4); 27201da177e4SLinus Torvalds READ32(*res); 27211da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 27221da177e4SLinus Torvalds } 27233110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 27241da177e4SLinus Torvalds return 0; 27251da177e4SLinus Torvalds } 27261da177e4SLinus Torvalds 27271da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27281da177e4SLinus Torvalds { 27298687b63aSAl Viro __be32 *p; 27301da177e4SLinus Torvalds 27311da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 27321da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 27331da177e4SLinus Torvalds return -EIO; 27341da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 27351da177e4SLinus Torvalds READ_BUF(4); 27361da177e4SLinus Torvalds READ32(*res); 27371da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 27381da177e4SLinus Torvalds } 27393110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 27401da177e4SLinus Torvalds return 0; 27411da177e4SLinus Torvalds } 27421da177e4SLinus Torvalds 27431da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 27441da177e4SLinus Torvalds { 27458687b63aSAl Viro __be32 *p; 2746409924e4STrond Myklebust int ret = 0; 27471da177e4SLinus Torvalds 27481da177e4SLinus Torvalds *fileid = 0; 27491da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 27501da177e4SLinus Torvalds return -EIO; 27511da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 27521da177e4SLinus Torvalds READ_BUF(8); 27531da177e4SLinus Torvalds READ64(*fileid); 27541da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2755409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 27561da177e4SLinus Torvalds } 27573110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2758409924e4STrond Myklebust return ret; 27591da177e4SLinus Torvalds } 27601da177e4SLinus Torvalds 276199baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 276299baf625SManoj Naik { 27638687b63aSAl Viro __be32 *p; 2764409924e4STrond Myklebust int ret = 0; 276599baf625SManoj Naik 276699baf625SManoj Naik *fileid = 0; 276799baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 276899baf625SManoj Naik return -EIO; 276999baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 277099baf625SManoj Naik READ_BUF(8); 277199baf625SManoj Naik READ64(*fileid); 277299baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2773409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 277499baf625SManoj Naik } 27753110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2776409924e4STrond Myklebust return ret; 277799baf625SManoj Naik } 277899baf625SManoj Naik 27791da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27801da177e4SLinus Torvalds { 27818687b63aSAl Viro __be32 *p; 27821da177e4SLinus Torvalds int status = 0; 27831da177e4SLinus Torvalds 27841da177e4SLinus Torvalds *res = 0; 27851da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 27861da177e4SLinus Torvalds return -EIO; 27871da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 27881da177e4SLinus Torvalds READ_BUF(8); 27891da177e4SLinus Torvalds READ64(*res); 27901da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 27911da177e4SLinus Torvalds } 27923110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 27931da177e4SLinus Torvalds return status; 27941da177e4SLinus Torvalds } 27951da177e4SLinus Torvalds 27961da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27971da177e4SLinus Torvalds { 27988687b63aSAl Viro __be32 *p; 27991da177e4SLinus Torvalds int status = 0; 28001da177e4SLinus Torvalds 28011da177e4SLinus Torvalds *res = 0; 28021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 28031da177e4SLinus Torvalds return -EIO; 28041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 28051da177e4SLinus Torvalds READ_BUF(8); 28061da177e4SLinus Torvalds READ64(*res); 28071da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 28081da177e4SLinus Torvalds } 28093110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 28101da177e4SLinus Torvalds return status; 28111da177e4SLinus Torvalds } 28121da177e4SLinus Torvalds 28131da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28141da177e4SLinus Torvalds { 28158687b63aSAl Viro __be32 *p; 28161da177e4SLinus Torvalds int status = 0; 28171da177e4SLinus Torvalds 28181da177e4SLinus Torvalds *res = 0; 28191da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 28201da177e4SLinus Torvalds return -EIO; 28211da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 28221da177e4SLinus Torvalds READ_BUF(8); 28231da177e4SLinus Torvalds READ64(*res); 28241da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 28251da177e4SLinus Torvalds } 28263110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 28271da177e4SLinus Torvalds return status; 28281da177e4SLinus Torvalds } 28291da177e4SLinus Torvalds 28307aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 28317aaa0b3bSManoj Naik { 2832464ad6b1SChuck Lever u32 n; 28338687b63aSAl Viro __be32 *p; 28347aaa0b3bSManoj Naik int status = 0; 28357aaa0b3bSManoj Naik 28367aaa0b3bSManoj Naik READ_BUF(4); 28377aaa0b3bSManoj Naik READ32(n); 283833a43f28SAndy Adamson if (n == 0) 283933a43f28SAndy Adamson goto root_path; 28407aaa0b3bSManoj Naik dprintk("path "); 28417aaa0b3bSManoj Naik path->ncomponents = 0; 28427aaa0b3bSManoj Naik while (path->ncomponents < n) { 28437aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 28447aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 28457aaa0b3bSManoj Naik if (unlikely(status != 0)) 28467aaa0b3bSManoj Naik goto out_eio; 28477aaa0b3bSManoj Naik if (path->ncomponents != n) 28487aaa0b3bSManoj Naik dprintk("/"); 28497aaa0b3bSManoj Naik dprintk("%s", component->data); 28507aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 28517aaa0b3bSManoj Naik path->ncomponents++; 28527aaa0b3bSManoj Naik else { 28537aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 28547aaa0b3bSManoj Naik goto out_eio; 28557aaa0b3bSManoj Naik } 28567aaa0b3bSManoj Naik } 28577aaa0b3bSManoj Naik out: 28587aaa0b3bSManoj Naik dprintk("\n"); 28597aaa0b3bSManoj Naik return status; 286033a43f28SAndy Adamson root_path: 286133a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 286233a43f28SAndy Adamson path->ncomponents = 1; 286333a43f28SAndy Adamson path->components[0].len=0; 286433a43f28SAndy Adamson path->components[0].data=NULL; 286533a43f28SAndy Adamson dprintk("path /\n"); 286633a43f28SAndy Adamson goto out; 28677aaa0b3bSManoj Naik out_eio: 28687aaa0b3bSManoj Naik dprintk(" status %d", status); 28697aaa0b3bSManoj Naik status = -EIO; 28707aaa0b3bSManoj Naik goto out; 28717aaa0b3bSManoj Naik } 28727aaa0b3bSManoj Naik 28737aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2874683b57b4STrond Myklebust { 2875683b57b4STrond Myklebust int n; 28768687b63aSAl Viro __be32 *p; 2877683b57b4STrond Myklebust int status = -EIO; 2878683b57b4STrond Myklebust 2879683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2880683b57b4STrond Myklebust goto out; 2881683b57b4STrond Myklebust status = 0; 2882683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2883683b57b4STrond Myklebust goto out; 28843110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 28857aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2886683b57b4STrond Myklebust if (unlikely(status != 0)) 2887683b57b4STrond Myklebust goto out; 2888683b57b4STrond Myklebust READ_BUF(4); 2889683b57b4STrond Myklebust READ32(n); 2890683b57b4STrond Myklebust if (n <= 0) 2891683b57b4STrond Myklebust goto out_eio; 2892683b57b4STrond Myklebust res->nlocations = 0; 2893683b57b4STrond Myklebust while (res->nlocations < n) { 2894464ad6b1SChuck Lever u32 m; 28957aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2896683b57b4STrond Myklebust 28977aaa0b3bSManoj Naik READ_BUF(4); 28987aaa0b3bSManoj Naik READ32(m); 28997aaa0b3bSManoj Naik 29007aaa0b3bSManoj Naik loc->nservers = 0; 29013110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 29027aaa0b3bSManoj Naik while (loc->nservers < m) { 29037aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 29047aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2905683b57b4STrond Myklebust if (unlikely(status != 0)) 2906683b57b4STrond Myklebust goto out_eio; 29077aaa0b3bSManoj Naik dprintk("%s ", server->data); 29087aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 29097aaa0b3bSManoj Naik loc->nservers++; 29107aaa0b3bSManoj Naik else { 2911464ad6b1SChuck Lever unsigned int i; 2912464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2913464ad6b1SChuck Lever "returned for location %u\n", 29143110ff80SHarvey Harrison __func__, 2915464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2916464ad6b1SChuck Lever m, res->nlocations); 29177aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 29182e42c3e2STrond Myklebust unsigned int len; 29197aaa0b3bSManoj Naik char *data; 29207aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2921683b57b4STrond Myklebust if (unlikely(status != 0)) 2922683b57b4STrond Myklebust goto out_eio; 29237aaa0b3bSManoj Naik } 29247aaa0b3bSManoj Naik } 29257aaa0b3bSManoj Naik } 29267aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 29277aaa0b3bSManoj Naik if (unlikely(status != 0)) 29287aaa0b3bSManoj Naik goto out_eio; 29297aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2930683b57b4STrond Myklebust res->nlocations++; 2931683b57b4STrond Myklebust } 2932409924e4STrond Myklebust if (res->nlocations != 0) 2933409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 2934683b57b4STrond Myklebust out: 29353110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2936683b57b4STrond Myklebust return status; 2937683b57b4STrond Myklebust out_eio: 2938683b57b4STrond Myklebust status = -EIO; 2939683b57b4STrond Myklebust goto out; 2940683b57b4STrond Myklebust } 2941683b57b4STrond Myklebust 29421da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29431da177e4SLinus Torvalds { 29448687b63aSAl Viro __be32 *p; 29451da177e4SLinus Torvalds int status = 0; 29461da177e4SLinus Torvalds 29471da177e4SLinus Torvalds *res = 0; 29481da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 29491da177e4SLinus Torvalds return -EIO; 29501da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 29511da177e4SLinus Torvalds READ_BUF(8); 29521da177e4SLinus Torvalds READ64(*res); 29531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 29541da177e4SLinus Torvalds } 29553110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 29561da177e4SLinus Torvalds return status; 29571da177e4SLinus Torvalds } 29581da177e4SLinus Torvalds 29591da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 29601da177e4SLinus Torvalds { 29618687b63aSAl Viro __be32 *p; 29621da177e4SLinus Torvalds int status = 0; 29631da177e4SLinus Torvalds 29641da177e4SLinus Torvalds *maxlink = 1; 29651da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 29661da177e4SLinus Torvalds return -EIO; 29671da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 29681da177e4SLinus Torvalds READ_BUF(4); 29691da177e4SLinus Torvalds READ32(*maxlink); 29701da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 29711da177e4SLinus Torvalds } 29723110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 29731da177e4SLinus Torvalds return status; 29741da177e4SLinus Torvalds } 29751da177e4SLinus Torvalds 29761da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 29771da177e4SLinus Torvalds { 29788687b63aSAl Viro __be32 *p; 29791da177e4SLinus Torvalds int status = 0; 29801da177e4SLinus Torvalds 29811da177e4SLinus Torvalds *maxname = 1024; 29821da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 29831da177e4SLinus Torvalds return -EIO; 29841da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 29851da177e4SLinus Torvalds READ_BUF(4); 29861da177e4SLinus Torvalds READ32(*maxname); 29871da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 29881da177e4SLinus Torvalds } 29893110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 29901da177e4SLinus Torvalds return status; 29911da177e4SLinus Torvalds } 29921da177e4SLinus Torvalds 29931da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29941da177e4SLinus Torvalds { 29958687b63aSAl Viro __be32 *p; 29961da177e4SLinus Torvalds int status = 0; 29971da177e4SLinus Torvalds 29981da177e4SLinus Torvalds *res = 1024; 29991da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 30001da177e4SLinus Torvalds return -EIO; 30011da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 30021da177e4SLinus Torvalds uint64_t maxread; 30031da177e4SLinus Torvalds READ_BUF(8); 30041da177e4SLinus Torvalds READ64(maxread); 30051da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 30061da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 30071da177e4SLinus Torvalds *res = (uint32_t)maxread; 30081da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 30091da177e4SLinus Torvalds } 30103110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 30111da177e4SLinus Torvalds return status; 30121da177e4SLinus Torvalds } 30131da177e4SLinus Torvalds 30141da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 30151da177e4SLinus Torvalds { 30168687b63aSAl Viro __be32 *p; 30171da177e4SLinus Torvalds int status = 0; 30181da177e4SLinus Torvalds 30191da177e4SLinus Torvalds *res = 1024; 30201da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 30211da177e4SLinus Torvalds return -EIO; 30221da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 30231da177e4SLinus Torvalds uint64_t maxwrite; 30241da177e4SLinus Torvalds READ_BUF(8); 30251da177e4SLinus Torvalds READ64(maxwrite); 30261da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 30271da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 30281da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 30291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 30301da177e4SLinus Torvalds } 30313110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 30321da177e4SLinus Torvalds return status; 30331da177e4SLinus Torvalds } 30341da177e4SLinus Torvalds 3035bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 30361da177e4SLinus Torvalds { 3037bca79478STrond Myklebust uint32_t tmp; 30388687b63aSAl Viro __be32 *p; 3039409924e4STrond Myklebust int ret = 0; 30401da177e4SLinus Torvalds 30411da177e4SLinus Torvalds *mode = 0; 30421da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 30431da177e4SLinus Torvalds return -EIO; 30441da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 30451da177e4SLinus Torvalds READ_BUF(4); 3046bca79478STrond Myklebust READ32(tmp); 3047bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 30481da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3049409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 30501da177e4SLinus Torvalds } 30513110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3052409924e4STrond Myklebust return ret; 30531da177e4SLinus Torvalds } 30541da177e4SLinus Torvalds 30551da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 30561da177e4SLinus Torvalds { 30578687b63aSAl Viro __be32 *p; 3058409924e4STrond Myklebust int ret = 0; 30591da177e4SLinus Torvalds 30601da177e4SLinus Torvalds *nlink = 1; 30611da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 30621da177e4SLinus Torvalds return -EIO; 30631da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 30641da177e4SLinus Torvalds READ_BUF(4); 30651da177e4SLinus Torvalds READ32(*nlink); 30661da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3067409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 30681da177e4SLinus Torvalds } 30693110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3070409924e4STrond Myklebust return ret; 30711da177e4SLinus Torvalds } 30721da177e4SLinus Torvalds 30732e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 30741da177e4SLinus Torvalds { 30758687b63aSAl Viro uint32_t len; 30768687b63aSAl Viro __be32 *p; 3077409924e4STrond Myklebust int ret = 0; 30781da177e4SLinus Torvalds 30791da177e4SLinus Torvalds *uid = -2; 30801da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 30811da177e4SLinus Torvalds return -EIO; 30821da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 30831da177e4SLinus Torvalds READ_BUF(4); 30841da177e4SLinus Torvalds READ32(len); 30851da177e4SLinus Torvalds READ_BUF(len); 30861da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3087409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3088409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3089409924e4STrond Myklebust else 30901da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 30913110ff80SHarvey Harrison __func__); 30921da177e4SLinus Torvalds } else 3093fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 30943110ff80SHarvey Harrison __func__, len); 30951da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 30961da177e4SLinus Torvalds } 30973110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3098409924e4STrond Myklebust return ret; 30991da177e4SLinus Torvalds } 31001da177e4SLinus Torvalds 31012e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 31021da177e4SLinus Torvalds { 31038687b63aSAl Viro uint32_t len; 31048687b63aSAl Viro __be32 *p; 3105409924e4STrond Myklebust int ret = 0; 31061da177e4SLinus Torvalds 31071da177e4SLinus Torvalds *gid = -2; 31081da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 31091da177e4SLinus Torvalds return -EIO; 31101da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 31111da177e4SLinus Torvalds READ_BUF(4); 31121da177e4SLinus Torvalds READ32(len); 31131da177e4SLinus Torvalds READ_BUF(len); 31141da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3115409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3116409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3117409924e4STrond Myklebust else 31181da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 31193110ff80SHarvey Harrison __func__); 31201da177e4SLinus Torvalds } else 3121fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 31223110ff80SHarvey Harrison __func__, len); 31231da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 31241da177e4SLinus Torvalds } 31253110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3126409924e4STrond Myklebust return ret; 31271da177e4SLinus Torvalds } 31281da177e4SLinus Torvalds 31291da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 31301da177e4SLinus Torvalds { 31318687b63aSAl Viro uint32_t major = 0, minor = 0; 31328687b63aSAl Viro __be32 *p; 3133409924e4STrond Myklebust int ret = 0; 31341da177e4SLinus Torvalds 31351da177e4SLinus Torvalds *rdev = MKDEV(0,0); 31361da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 31371da177e4SLinus Torvalds return -EIO; 31381da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 31391da177e4SLinus Torvalds dev_t tmp; 31401da177e4SLinus Torvalds 31411da177e4SLinus Torvalds READ_BUF(8); 31421da177e4SLinus Torvalds READ32(major); 31431da177e4SLinus Torvalds READ32(minor); 31441da177e4SLinus Torvalds tmp = MKDEV(major, minor); 31451da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 31461da177e4SLinus Torvalds *rdev = tmp; 31471da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3148409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 31491da177e4SLinus Torvalds } 31503110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3151409924e4STrond Myklebust return ret; 31521da177e4SLinus Torvalds } 31531da177e4SLinus Torvalds 31541da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31551da177e4SLinus Torvalds { 31568687b63aSAl Viro __be32 *p; 31571da177e4SLinus Torvalds int status = 0; 31581da177e4SLinus Torvalds 31591da177e4SLinus Torvalds *res = 0; 31601da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 31611da177e4SLinus Torvalds return -EIO; 31621da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 31631da177e4SLinus Torvalds READ_BUF(8); 31641da177e4SLinus Torvalds READ64(*res); 31651da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 31661da177e4SLinus Torvalds } 31673110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 31681da177e4SLinus Torvalds return status; 31691da177e4SLinus Torvalds } 31701da177e4SLinus Torvalds 31711da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31721da177e4SLinus Torvalds { 31738687b63aSAl Viro __be32 *p; 31741da177e4SLinus Torvalds int status = 0; 31751da177e4SLinus Torvalds 31761da177e4SLinus Torvalds *res = 0; 31771da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 31781da177e4SLinus Torvalds return -EIO; 31791da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 31801da177e4SLinus Torvalds READ_BUF(8); 31811da177e4SLinus Torvalds READ64(*res); 31821da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 31831da177e4SLinus Torvalds } 31843110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 31851da177e4SLinus Torvalds return status; 31861da177e4SLinus Torvalds } 31871da177e4SLinus Torvalds 31881da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31891da177e4SLinus Torvalds { 31908687b63aSAl Viro __be32 *p; 31911da177e4SLinus Torvalds int status = 0; 31921da177e4SLinus Torvalds 31931da177e4SLinus Torvalds *res = 0; 31941da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 31951da177e4SLinus Torvalds return -EIO; 31961da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 31971da177e4SLinus Torvalds READ_BUF(8); 31981da177e4SLinus Torvalds READ64(*res); 31991da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 32001da177e4SLinus Torvalds } 32013110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 32021da177e4SLinus Torvalds return status; 32031da177e4SLinus Torvalds } 32041da177e4SLinus Torvalds 32051da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 32061da177e4SLinus Torvalds { 32078687b63aSAl Viro __be32 *p; 3208409924e4STrond Myklebust int ret = 0; 32091da177e4SLinus Torvalds 32101da177e4SLinus Torvalds *used = 0; 32111da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 32121da177e4SLinus Torvalds return -EIO; 32131da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 32141da177e4SLinus Torvalds READ_BUF(8); 32151da177e4SLinus Torvalds READ64(*used); 32161da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3217409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 32181da177e4SLinus Torvalds } 32193110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 32201da177e4SLinus Torvalds (unsigned long long)*used); 3221409924e4STrond Myklebust return ret; 32221da177e4SLinus Torvalds } 32231da177e4SLinus Torvalds 32241da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 32251da177e4SLinus Torvalds { 32268687b63aSAl Viro __be32 *p; 32271da177e4SLinus Torvalds uint64_t sec; 32281da177e4SLinus Torvalds uint32_t nsec; 32291da177e4SLinus Torvalds 32301da177e4SLinus Torvalds READ_BUF(12); 32311da177e4SLinus Torvalds READ64(sec); 32321da177e4SLinus Torvalds READ32(nsec); 32331da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 32341da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 32351da177e4SLinus Torvalds return 0; 32361da177e4SLinus Torvalds } 32371da177e4SLinus Torvalds 32381da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32391da177e4SLinus Torvalds { 32401da177e4SLinus Torvalds int status = 0; 32411da177e4SLinus Torvalds 32421da177e4SLinus Torvalds time->tv_sec = 0; 32431da177e4SLinus Torvalds time->tv_nsec = 0; 32441da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 32451da177e4SLinus Torvalds return -EIO; 32461da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 32471da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3248409924e4STrond Myklebust if (status == 0) 3249409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 32501da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 32511da177e4SLinus Torvalds } 32523110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 32531da177e4SLinus Torvalds return status; 32541da177e4SLinus Torvalds } 32551da177e4SLinus Torvalds 32561da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32571da177e4SLinus Torvalds { 32581da177e4SLinus Torvalds int status = 0; 32591da177e4SLinus Torvalds 32601da177e4SLinus Torvalds time->tv_sec = 0; 32611da177e4SLinus Torvalds time->tv_nsec = 0; 32621da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 32631da177e4SLinus Torvalds return -EIO; 32641da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 32651da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3266409924e4STrond Myklebust if (status == 0) 3267409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 32681da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 32691da177e4SLinus Torvalds } 32703110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 32711da177e4SLinus Torvalds return status; 32721da177e4SLinus Torvalds } 32731da177e4SLinus Torvalds 32741da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32751da177e4SLinus Torvalds { 32761da177e4SLinus Torvalds int status = 0; 32771da177e4SLinus Torvalds 32781da177e4SLinus Torvalds time->tv_sec = 0; 32791da177e4SLinus Torvalds time->tv_nsec = 0; 32801da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 32811da177e4SLinus Torvalds return -EIO; 32821da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 32831da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3284409924e4STrond Myklebust if (status == 0) 3285409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 32861da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 32871da177e4SLinus Torvalds } 32883110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 32891da177e4SLinus Torvalds return status; 32901da177e4SLinus Torvalds } 32911da177e4SLinus Torvalds 32928687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 32931da177e4SLinus Torvalds { 32941da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 32951da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 32961da177e4SLinus Torvalds 32971da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3298fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3299fe82a183SChuck Lever "%u %c %u\n", 33003110ff80SHarvey Harrison __func__, 33011da177e4SLinus Torvalds attrwords << 2, 33021da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 33031da177e4SLinus Torvalds nwords << 2); 33041da177e4SLinus Torvalds return -EIO; 33051da177e4SLinus Torvalds } 33061da177e4SLinus Torvalds return 0; 33071da177e4SLinus Torvalds } 33081da177e4SLinus Torvalds 33091da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 33101da177e4SLinus Torvalds { 33118687b63aSAl Viro __be32 *p; 33121da177e4SLinus Torvalds 33131da177e4SLinus Torvalds READ_BUF(20); 33141da177e4SLinus Torvalds READ32(cinfo->atomic); 33151da177e4SLinus Torvalds READ64(cinfo->before); 33161da177e4SLinus Torvalds READ64(cinfo->after); 33171da177e4SLinus Torvalds return 0; 33181da177e4SLinus Torvalds } 33191da177e4SLinus Torvalds 33201da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 33211da177e4SLinus Torvalds { 33228687b63aSAl Viro __be32 *p; 33231da177e4SLinus Torvalds uint32_t supp, acc; 33241da177e4SLinus Torvalds int status; 33251da177e4SLinus Torvalds 33261da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 33271da177e4SLinus Torvalds if (status) 33281da177e4SLinus Torvalds return status; 33291da177e4SLinus Torvalds READ_BUF(8); 33301da177e4SLinus Torvalds READ32(supp); 33311da177e4SLinus Torvalds READ32(acc); 33321da177e4SLinus Torvalds access->supported = supp; 33331da177e4SLinus Torvalds access->access = acc; 33341da177e4SLinus Torvalds return 0; 33351da177e4SLinus Torvalds } 33361da177e4SLinus Torvalds 33371da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 33381da177e4SLinus Torvalds { 33398687b63aSAl Viro __be32 *p; 33401da177e4SLinus Torvalds int status; 33411da177e4SLinus Torvalds 33421da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3343c1d51931STrond Myklebust if (status != -EIO) 3344c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33451da177e4SLinus Torvalds if (status) 33461da177e4SLinus Torvalds return status; 33478ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33488ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33491da177e4SLinus Torvalds return 0; 33501da177e4SLinus Torvalds } 33511da177e4SLinus Torvalds 33521da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 33531da177e4SLinus Torvalds { 33548687b63aSAl Viro __be32 *p; 33551da177e4SLinus Torvalds int status; 33561da177e4SLinus Torvalds 33571da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 33581da177e4SLinus Torvalds if (status) 33591da177e4SLinus Torvalds return status; 33601da177e4SLinus Torvalds READ_BUF(8); 33611da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 33621da177e4SLinus Torvalds return 0; 33631da177e4SLinus Torvalds } 33641da177e4SLinus Torvalds 33651da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 33661da177e4SLinus Torvalds { 33678687b63aSAl Viro __be32 *p; 33681da177e4SLinus Torvalds uint32_t bmlen; 33691da177e4SLinus Torvalds int status; 33701da177e4SLinus Torvalds 33711da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 33721da177e4SLinus Torvalds if (status) 33731da177e4SLinus Torvalds return status; 33741da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 33751da177e4SLinus Torvalds return status; 33761da177e4SLinus Torvalds READ_BUF(4); 33771da177e4SLinus Torvalds READ32(bmlen); 33781da177e4SLinus Torvalds READ_BUF(bmlen << 2); 33791da177e4SLinus Torvalds return 0; 33801da177e4SLinus Torvalds } 33811da177e4SLinus Torvalds 33821da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 33831da177e4SLinus Torvalds { 33848687b63aSAl Viro __be32 *savep; 33856c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 33861da177e4SLinus Torvalds int status; 33871da177e4SLinus Torvalds 33881da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 33891da177e4SLinus Torvalds goto xdr_error; 33901da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 33911da177e4SLinus Torvalds goto xdr_error; 33921da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 33931da177e4SLinus Torvalds goto xdr_error; 33941da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 33951da177e4SLinus Torvalds goto xdr_error; 33961da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 33971da177e4SLinus Torvalds goto xdr_error; 33981da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 33991da177e4SLinus Torvalds goto xdr_error; 34001da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 34011da177e4SLinus Torvalds goto xdr_error; 34021da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34031da177e4SLinus Torvalds xdr_error: 34043110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34051da177e4SLinus Torvalds return status; 34061da177e4SLinus Torvalds } 34071da177e4SLinus Torvalds 34081da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 34091da177e4SLinus Torvalds { 34108687b63aSAl Viro __be32 *savep; 34116c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 34121da177e4SLinus Torvalds int status; 34131da177e4SLinus Torvalds 34141da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 34151da177e4SLinus Torvalds goto xdr_error; 34161da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 34171da177e4SLinus Torvalds goto xdr_error; 34181da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 34191da177e4SLinus Torvalds goto xdr_error; 34201da177e4SLinus Torvalds 34211da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 34221da177e4SLinus Torvalds goto xdr_error; 34231da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 34241da177e4SLinus Torvalds goto xdr_error; 34251da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 34261da177e4SLinus Torvalds goto xdr_error; 34271da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 34281da177e4SLinus Torvalds goto xdr_error; 34291da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 34301da177e4SLinus Torvalds goto xdr_error; 34311da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 34321da177e4SLinus Torvalds goto xdr_error; 34331da177e4SLinus Torvalds 34341da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34351da177e4SLinus Torvalds xdr_error: 34363110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34371da177e4SLinus Torvalds return status; 34381da177e4SLinus Torvalds } 34391da177e4SLinus Torvalds 34401da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 34411da177e4SLinus Torvalds { 34428687b63aSAl Viro __be32 *savep; 34436c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 34441da177e4SLinus Torvalds int status; 34451da177e4SLinus Torvalds 34461da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 34471da177e4SLinus Torvalds goto xdr_error; 34481da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 34491da177e4SLinus Torvalds goto xdr_error; 34501da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 34511da177e4SLinus Torvalds goto xdr_error; 34521da177e4SLinus Torvalds 34531da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 34541da177e4SLinus Torvalds goto xdr_error; 34551da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 34561da177e4SLinus Torvalds goto xdr_error; 34571da177e4SLinus Torvalds 34581da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34591da177e4SLinus Torvalds xdr_error: 34603110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34611da177e4SLinus Torvalds return status; 34621da177e4SLinus Torvalds } 34631da177e4SLinus Torvalds 34641da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 34651da177e4SLinus Torvalds { 34668687b63aSAl Viro __be32 *savep; 34671da177e4SLinus Torvalds uint32_t attrlen, 34681da177e4SLinus Torvalds bitmap[2] = {0}, 34691da177e4SLinus Torvalds type; 3470bca79478STrond Myklebust int status; 3471bca79478STrond Myklebust umode_t fmode = 0; 347299baf625SManoj Naik uint64_t fileid; 34731da177e4SLinus Torvalds 3474f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3475f26c7a78STrond Myklebust if (status < 0) 34761da177e4SLinus Torvalds goto xdr_error; 34771da177e4SLinus Torvalds 3478f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3479f26c7a78STrond Myklebust if (status < 0) 3480f26c7a78STrond Myklebust goto xdr_error; 3481f26c7a78STrond Myklebust 3482f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3483f26c7a78STrond Myklebust if (status < 0) 34841da177e4SLinus Torvalds goto xdr_error; 34851da177e4SLinus Torvalds 34861da177e4SLinus Torvalds 3487f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3488f26c7a78STrond Myklebust if (status < 0) 34891da177e4SLinus Torvalds goto xdr_error; 3490409924e4STrond Myklebust fattr->mode = 0; 3491409924e4STrond Myklebust if (status != 0) { 3492409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3493409924e4STrond Myklebust fattr->valid |= status; 3494409924e4STrond Myklebust } 34951da177e4SLinus Torvalds 3496f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3497f26c7a78STrond Myklebust if (status < 0) 34981da177e4SLinus Torvalds goto xdr_error; 3499409924e4STrond Myklebust fattr->valid |= status; 3500f26c7a78STrond Myklebust 3501f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3502f26c7a78STrond Myklebust if (status < 0) 35031da177e4SLinus Torvalds goto xdr_error; 3504409924e4STrond Myklebust fattr->valid |= status; 3505f26c7a78STrond Myklebust 3506f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3507f26c7a78STrond Myklebust if (status < 0) 35081da177e4SLinus Torvalds goto xdr_error; 3509409924e4STrond Myklebust fattr->valid |= status; 3510f26c7a78STrond Myklebust 3511f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3512f26c7a78STrond Myklebust if (status < 0) 35131da177e4SLinus Torvalds goto xdr_error; 3514409924e4STrond Myklebust fattr->valid |= status; 3515f26c7a78STrond Myklebust 3516f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 35177aaa0b3bSManoj Naik struct nfs4_fs_locations, 3518f26c7a78STrond Myklebust fattr)); 3519f26c7a78STrond Myklebust if (status < 0) 3520683b57b4STrond Myklebust goto xdr_error; 3521409924e4STrond Myklebust fattr->valid |= status; 3522f26c7a78STrond Myklebust 3523f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3524f26c7a78STrond Myklebust if (status < 0) 35251da177e4SLinus Torvalds goto xdr_error; 3526409924e4STrond Myklebust if (status != 0) { 35271da177e4SLinus Torvalds fattr->mode |= fmode; 3528409924e4STrond Myklebust fattr->valid |= status; 3529409924e4STrond Myklebust } 3530f26c7a78STrond Myklebust 3531f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3532f26c7a78STrond Myklebust if (status < 0) 35331da177e4SLinus Torvalds goto xdr_error; 3534409924e4STrond Myklebust fattr->valid |= status; 3535f26c7a78STrond Myklebust 3536f26c7a78STrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); 3537f26c7a78STrond Myklebust if (status < 0) 35381da177e4SLinus Torvalds goto xdr_error; 3539409924e4STrond Myklebust fattr->valid |= status; 3540f26c7a78STrond Myklebust 3541f26c7a78STrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); 3542f26c7a78STrond Myklebust if (status < 0) 35431da177e4SLinus Torvalds goto xdr_error; 3544409924e4STrond Myklebust fattr->valid |= status; 3545f26c7a78STrond Myklebust 3546f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3547f26c7a78STrond Myklebust if (status < 0) 35481da177e4SLinus Torvalds goto xdr_error; 3549409924e4STrond Myklebust fattr->valid |= status; 3550f26c7a78STrond Myklebust 3551f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3552f26c7a78STrond Myklebust if (status < 0) 35531da177e4SLinus Torvalds goto xdr_error; 3554409924e4STrond Myklebust fattr->valid |= status; 3555f26c7a78STrond Myklebust 3556f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3557f26c7a78STrond Myklebust if (status < 0) 35581da177e4SLinus Torvalds goto xdr_error; 3559409924e4STrond Myklebust fattr->valid |= status; 3560f26c7a78STrond Myklebust 3561f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3562f26c7a78STrond Myklebust if (status < 0) 35631da177e4SLinus Torvalds goto xdr_error; 3564409924e4STrond Myklebust fattr->valid |= status; 3565f26c7a78STrond Myklebust 3566f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3567f26c7a78STrond Myklebust if (status < 0) 35681da177e4SLinus Torvalds goto xdr_error; 3569409924e4STrond Myklebust fattr->valid |= status; 3570f26c7a78STrond Myklebust 3571f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3572f26c7a78STrond Myklebust if (status < 0) 357399baf625SManoj Naik goto xdr_error; 3574409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 357599baf625SManoj Naik fattr->fileid = fileid; 3576409924e4STrond Myklebust fattr->valid |= status; 3577409924e4STrond Myklebust } 3578f26c7a78STrond Myklebust 3579f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 35801da177e4SLinus Torvalds xdr_error: 35813110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 35821da177e4SLinus Torvalds return status; 35831da177e4SLinus Torvalds } 35841da177e4SLinus Torvalds 35851da177e4SLinus Torvalds 35861da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 35871da177e4SLinus Torvalds { 35888687b63aSAl Viro __be32 *savep; 35891da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 35901da177e4SLinus Torvalds int status; 35911da177e4SLinus Torvalds 35921da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 35931da177e4SLinus Torvalds goto xdr_error; 35941da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 35951da177e4SLinus Torvalds goto xdr_error; 35961da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 35971da177e4SLinus Torvalds goto xdr_error; 35981da177e4SLinus Torvalds 35991da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 36001da177e4SLinus Torvalds 36011da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 36021da177e4SLinus Torvalds goto xdr_error; 36031da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 36041da177e4SLinus Torvalds goto xdr_error; 36051da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 36061da177e4SLinus Torvalds goto xdr_error; 36071da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 36081da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 36091da177e4SLinus Torvalds goto xdr_error; 36101da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 36111da177e4SLinus Torvalds 36121da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36131da177e4SLinus Torvalds xdr_error: 36143110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 36151da177e4SLinus Torvalds return status; 36161da177e4SLinus Torvalds } 36171da177e4SLinus Torvalds 36181da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 36191da177e4SLinus Torvalds { 36208687b63aSAl Viro __be32 *p; 36211da177e4SLinus Torvalds uint32_t len; 36221da177e4SLinus Torvalds int status; 36231da177e4SLinus Torvalds 36249936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 36259936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 36269936781dSTrond Myklebust 36271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 36281da177e4SLinus Torvalds if (status) 36291da177e4SLinus Torvalds return status; 36301da177e4SLinus Torvalds 36311da177e4SLinus Torvalds READ_BUF(4); 36321da177e4SLinus Torvalds READ32(len); 36331da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 36341da177e4SLinus Torvalds return -EIO; 36351da177e4SLinus Torvalds fh->size = len; 36361da177e4SLinus Torvalds READ_BUF(len); 36371da177e4SLinus Torvalds COPYMEM(fh->data, len); 36381da177e4SLinus Torvalds return 0; 36391da177e4SLinus Torvalds } 36401da177e4SLinus Torvalds 36411da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36421da177e4SLinus Torvalds { 36431da177e4SLinus Torvalds int status; 36441da177e4SLinus Torvalds 36451da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 36461da177e4SLinus Torvalds if (status) 36471da177e4SLinus Torvalds return status; 36481da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 36491da177e4SLinus Torvalds } 36501da177e4SLinus Torvalds 36511da177e4SLinus Torvalds /* 36521da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 36531da177e4SLinus Torvalds */ 3654911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 36551da177e4SLinus Torvalds { 3656911d1aafSTrond Myklebust uint64_t offset, length, clientid; 36578687b63aSAl Viro __be32 *p; 3658911d1aafSTrond Myklebust uint32_t namelen, type; 36591da177e4SLinus Torvalds 36601da177e4SLinus Torvalds READ_BUF(32); 3661911d1aafSTrond Myklebust READ64(offset); 3662911d1aafSTrond Myklebust READ64(length); 3663911d1aafSTrond Myklebust READ32(type); 3664911d1aafSTrond Myklebust if (fl != NULL) { 3665911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3666911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3667911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3668911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3669911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3670911d1aafSTrond Myklebust if (type & 1) 3671911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3672911d1aafSTrond Myklebust fl->fl_pid = 0; 3673911d1aafSTrond Myklebust } 3674911d1aafSTrond Myklebust READ64(clientid); 36751da177e4SLinus Torvalds READ32(namelen); 36761da177e4SLinus Torvalds READ_BUF(namelen); 36771da177e4SLinus Torvalds return -NFS4ERR_DENIED; 36781da177e4SLinus Torvalds } 36791da177e4SLinus Torvalds 3680911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 36811da177e4SLinus Torvalds { 36828687b63aSAl Viro __be32 *p; 36831da177e4SLinus Torvalds int status; 36841da177e4SLinus Torvalds 36851da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3686c1d51931STrond Myklebust if (status == -EIO) 3687c1d51931STrond Myklebust goto out; 36881da177e4SLinus Torvalds if (status == 0) { 36898ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 36908ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 36911da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3692c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3693c1d51931STrond Myklebust if (res->open_seqid != NULL) 3694c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3695c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3696c1d51931STrond Myklebust out: 36971da177e4SLinus Torvalds return status; 36981da177e4SLinus Torvalds } 36991da177e4SLinus Torvalds 3700911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 37011da177e4SLinus Torvalds { 37021da177e4SLinus Torvalds int status; 37031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 37041da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3705911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 37061da177e4SLinus Torvalds return status; 37071da177e4SLinus Torvalds } 37081da177e4SLinus Torvalds 3709911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 37101da177e4SLinus Torvalds { 37118687b63aSAl Viro __be32 *p; 37121da177e4SLinus Torvalds int status; 37131da177e4SLinus Torvalds 37141da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3715c1d51931STrond Myklebust if (status != -EIO) 3716c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 37171da177e4SLinus Torvalds if (status == 0) { 37188ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37198ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37201da177e4SLinus Torvalds } 37211da177e4SLinus Torvalds return status; 37221da177e4SLinus Torvalds } 37231da177e4SLinus Torvalds 37241da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 37251da177e4SLinus Torvalds { 37261da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 37271da177e4SLinus Torvalds } 37281da177e4SLinus Torvalds 37291da177e4SLinus Torvalds /* This is too sick! */ 37301da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 37311da177e4SLinus Torvalds { 37328687b63aSAl Viro __be32 *p; 37331da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 37341da177e4SLinus Torvalds 37351da177e4SLinus Torvalds READ_BUF(12); 37361da177e4SLinus Torvalds READ32(limit_type); 37371da177e4SLinus Torvalds switch (limit_type) { 37381da177e4SLinus Torvalds case 1: 37391da177e4SLinus Torvalds READ64(*maxsize); 37401da177e4SLinus Torvalds break; 37411da177e4SLinus Torvalds case 2: 37421da177e4SLinus Torvalds READ32(nblocks); 37431da177e4SLinus Torvalds READ32(blocksize); 37441da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 37451da177e4SLinus Torvalds } 37461da177e4SLinus Torvalds return 0; 37471da177e4SLinus Torvalds } 37481da177e4SLinus Torvalds 37491da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 37501da177e4SLinus Torvalds { 37518687b63aSAl Viro __be32 *p; 37521da177e4SLinus Torvalds uint32_t delegation_type; 37531da177e4SLinus Torvalds 37541da177e4SLinus Torvalds READ_BUF(4); 37551da177e4SLinus Torvalds READ32(delegation_type); 37561da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 37571da177e4SLinus Torvalds res->delegation_type = 0; 37581da177e4SLinus Torvalds return 0; 37591da177e4SLinus Torvalds } 37608ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 37618ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 37621da177e4SLinus Torvalds READ32(res->do_recall); 376305d564feSAndy Adamson 37641da177e4SLinus Torvalds switch (delegation_type) { 37651da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 37661da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 37671da177e4SLinus Torvalds break; 37681da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 37691da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 37701da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 37711da177e4SLinus Torvalds return -EIO; 37721da177e4SLinus Torvalds } 37737539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 37741da177e4SLinus Torvalds } 37751da177e4SLinus Torvalds 37761da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 37771da177e4SLinus Torvalds { 37788687b63aSAl Viro __be32 *p; 3779aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 37801da177e4SLinus Torvalds int status; 37811da177e4SLinus Torvalds 37821da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 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 37901da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 37911da177e4SLinus Torvalds 37921da177e4SLinus Torvalds READ_BUF(8); 37931da177e4SLinus Torvalds READ32(res->rflags); 37941da177e4SLinus Torvalds READ32(bmlen); 37951da177e4SLinus Torvalds if (bmlen > 10) 37961da177e4SLinus Torvalds goto xdr_error; 37971da177e4SLinus Torvalds 37981da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3799aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3800aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3801aa53ed54SJeff Layton READ32(res->attrset[i]); 3802aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3803aa53ed54SJeff Layton res->attrset[i] = 0; 3804aa53ed54SJeff Layton 38051da177e4SLinus Torvalds return decode_delegation(xdr, res); 38061da177e4SLinus Torvalds xdr_error: 38073110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 38081da177e4SLinus Torvalds return -EIO; 38091da177e4SLinus Torvalds } 38101da177e4SLinus Torvalds 38111da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 38121da177e4SLinus Torvalds { 38138687b63aSAl Viro __be32 *p; 38141da177e4SLinus Torvalds int status; 38151da177e4SLinus Torvalds 38161da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 3817c1d51931STrond Myklebust if (status != -EIO) 3818c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 38191da177e4SLinus Torvalds if (status) 38201da177e4SLinus Torvalds return status; 38218ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 38228ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 38231da177e4SLinus Torvalds return 0; 38241da177e4SLinus Torvalds } 38251da177e4SLinus Torvalds 38261da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 38271da177e4SLinus Torvalds { 38288687b63aSAl Viro __be32 *p; 38291da177e4SLinus Torvalds int status; 38301da177e4SLinus Torvalds 38311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 3832c1d51931STrond Myklebust if (status != -EIO) 3833c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 38341da177e4SLinus Torvalds if (status) 38351da177e4SLinus Torvalds return status; 38368ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 38378ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 38381da177e4SLinus Torvalds return 0; 38391da177e4SLinus Torvalds } 38401da177e4SLinus Torvalds 38411da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 38421da177e4SLinus Torvalds { 38431da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 38441da177e4SLinus Torvalds } 38451da177e4SLinus Torvalds 38461da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 38471da177e4SLinus Torvalds { 38481da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 38491da177e4SLinus Torvalds } 38501da177e4SLinus Torvalds 38511da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 38521da177e4SLinus Torvalds { 38531da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 38548687b63aSAl Viro __be32 *p; 38551da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 38561da177e4SLinus Torvalds int status; 38571da177e4SLinus Torvalds 38581da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 38591da177e4SLinus Torvalds if (status) 38601da177e4SLinus Torvalds return status; 38611da177e4SLinus Torvalds READ_BUF(8); 38621da177e4SLinus Torvalds READ32(eof); 38631da177e4SLinus Torvalds READ32(count); 38641da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 38651da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 38661da177e4SLinus Torvalds if (count > recvd) { 3867fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 38681da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 38691da177e4SLinus Torvalds count = recvd; 38701da177e4SLinus Torvalds eof = 0; 38711da177e4SLinus Torvalds } 38721da177e4SLinus Torvalds xdr_read_pages(xdr, count); 38731da177e4SLinus Torvalds res->eof = eof; 38741da177e4SLinus Torvalds res->count = count; 38751da177e4SLinus Torvalds return 0; 38761da177e4SLinus Torvalds } 38771da177e4SLinus Torvalds 38781da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 38791da177e4SLinus Torvalds { 38801da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 38811da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 38821da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3883bcecff77SChuck Lever size_t hdrlen; 3884bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 38858687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 38867bda2cdfSJeff Layton unsigned int nr = 0; 3887bcecff77SChuck Lever int status; 38881da177e4SLinus Torvalds 38891da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 38901da177e4SLinus Torvalds if (status) 38911da177e4SLinus Torvalds return status; 38921da177e4SLinus Torvalds READ_BUF(8); 38931da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 389444109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 389544109241SFred Isaman __func__, 3896eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3897eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3898eadf4598STrond Myklebust 38991da177e4SLinus Torvalds 39001da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 39011da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 39021da177e4SLinus Torvalds if (pglen > recvd) 39031da177e4SLinus Torvalds pglen = recvd; 39041da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 39051da177e4SLinus Torvalds 39061da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 39078687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3908e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 39091da177e4SLinus Torvalds entry = p; 39107bda2cdfSJeff Layton 39117bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 39127bda2cdfSJeff Layton if ((entry + 1) > end) 39137bda2cdfSJeff Layton goto short_pkt; 39147bda2cdfSJeff Layton 39157bda2cdfSJeff Layton for (; *p++; nr++) { 3916bcecff77SChuck Lever u32 len, attrlen, xlen; 3917e8896495SDavid Howells if (end - p < 3) 39181da177e4SLinus Torvalds goto short_pkt; 3919eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 39201da177e4SLinus Torvalds p += 2; /* cookie */ 39211da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 39221da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3923fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3924fe82a183SChuck Lever len); 39251da177e4SLinus Torvalds goto err_unmap; 39261da177e4SLinus Torvalds } 3927e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3928e8896495SDavid Howells if (end - p < xlen + 1) 3929e8896495SDavid Howells goto short_pkt; 3930eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3931e8896495SDavid Howells p += xlen; 39321da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3933e8896495SDavid Howells if (end - p < len + 1) 3934e8896495SDavid Howells goto short_pkt; 39351da177e4SLinus Torvalds p += len; 39361da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3937e8896495SDavid Howells if (end - p < attrlen + 2) 39381da177e4SLinus Torvalds goto short_pkt; 3939e8896495SDavid Howells p += attrlen; /* attributes */ 39401da177e4SLinus Torvalds entry = p; 39411da177e4SLinus Torvalds } 39427bda2cdfSJeff Layton /* 39437bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 39447bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 39457bda2cdfSJeff Layton * those, just set the EOF marker. 39467bda2cdfSJeff Layton */ 39477bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 39487bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 39497bda2cdfSJeff Layton entry[1] = 1; 39507bda2cdfSJeff Layton } 39511da177e4SLinus Torvalds out: 39521da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39531da177e4SLinus Torvalds return 0; 39541da177e4SLinus Torvalds short_pkt: 39557bda2cdfSJeff Layton /* 39567bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 39577bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 39587bda2cdfSJeff Layton * response and return what we have so far. If there are no 39597bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 39607bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 39617bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 39627bda2cdfSJeff Layton * readdir starting at the last cookie. 39637bda2cdfSJeff Layton */ 39643110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 39651da177e4SLinus Torvalds entry[0] = entry[1] = 0; 39667bda2cdfSJeff Layton if (nr) 39671da177e4SLinus Torvalds goto out; 39681da177e4SLinus Torvalds err_unmap: 39691da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39701da177e4SLinus Torvalds return -errno_NFSERR_IO; 39711da177e4SLinus Torvalds } 39721da177e4SLinus Torvalds 39731da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 39741da177e4SLinus Torvalds { 39751da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 39761da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3977bcecff77SChuck Lever size_t hdrlen; 3978bcecff77SChuck Lever u32 len, recvd; 39798687b63aSAl Viro __be32 *p; 39801da177e4SLinus Torvalds char *kaddr; 39811da177e4SLinus Torvalds int status; 39821da177e4SLinus Torvalds 39831da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 39841da177e4SLinus Torvalds if (status) 39851da177e4SLinus Torvalds return status; 39861da177e4SLinus Torvalds 39871da177e4SLinus Torvalds /* Convert length of symlink */ 39881da177e4SLinus Torvalds READ_BUF(4); 39891da177e4SLinus Torvalds READ32(len); 39901da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3991fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 39921da177e4SLinus Torvalds return -ENAMETOOLONG; 39931da177e4SLinus Torvalds } 39941da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 39951da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 39961da177e4SLinus Torvalds if (recvd < len) { 3997fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 39981da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 39991da177e4SLinus Torvalds return -EIO; 40001da177e4SLinus Torvalds } 40011da177e4SLinus Torvalds xdr_read_pages(xdr, len); 40021da177e4SLinus Torvalds /* 40031da177e4SLinus Torvalds * The XDR encode routine has set things up so that 40041da177e4SLinus Torvalds * the link text will be copied directly into the 40051da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 40061da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 40071da177e4SLinus Torvalds * null-termination). 40081da177e4SLinus Torvalds */ 40091da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 40101da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 40111da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 40121da177e4SLinus Torvalds return 0; 40131da177e4SLinus Torvalds } 40141da177e4SLinus Torvalds 40151da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 40161da177e4SLinus Torvalds { 40171da177e4SLinus Torvalds int status; 40181da177e4SLinus Torvalds 40191da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 40201da177e4SLinus Torvalds if (status) 40211da177e4SLinus Torvalds goto out; 40221da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 40231da177e4SLinus Torvalds out: 40241da177e4SLinus Torvalds return status; 40251da177e4SLinus Torvalds } 40261da177e4SLinus Torvalds 40271da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 40281da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 40291da177e4SLinus Torvalds { 40301da177e4SLinus Torvalds int status; 40311da177e4SLinus Torvalds 40321da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 40331da177e4SLinus Torvalds if (status) 40341da177e4SLinus Torvalds goto out; 40351da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 40361da177e4SLinus Torvalds goto out; 40371da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 40381da177e4SLinus Torvalds out: 40391da177e4SLinus Torvalds return status; 40401da177e4SLinus Torvalds } 40411da177e4SLinus Torvalds 40421da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 40431da177e4SLinus Torvalds { 40441da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 40451da177e4SLinus Torvalds } 40461da177e4SLinus Torvalds 404756ae19f3STrond Myklebust static int 404856ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 404956ae19f3STrond Myklebust { 405056ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 405156ae19f3STrond Myklebust } 405256ae19f3STrond Myklebust 4053029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4054029d105eSJ. Bruce Fields size_t *acl_len) 4055029d105eSJ. Bruce Fields { 40568687b63aSAl Viro __be32 *savep; 4057029d105eSJ. Bruce Fields uint32_t attrlen, 4058029d105eSJ. Bruce Fields bitmap[2] = {0}; 4059029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4060029d105eSJ. Bruce Fields int status; 4061029d105eSJ. Bruce Fields 4062029d105eSJ. Bruce Fields *acl_len = 0; 4063029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4064029d105eSJ. Bruce Fields goto out; 4065029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4066029d105eSJ. Bruce Fields goto out; 4067029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4068029d105eSJ. Bruce Fields goto out; 4069029d105eSJ. Bruce Fields 4070029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4071029d105eSJ. Bruce Fields return -EIO; 4072029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4073bcecff77SChuck Lever size_t hdrlen; 4074bcecff77SChuck Lever u32 recvd; 4075029d105eSJ. Bruce Fields 4076029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4077029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4078029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4079029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4080029d105eSJ. Bruce Fields if (attrlen > recvd) { 4081fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4082029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4083029d105eSJ. Bruce Fields attrlen, recvd); 4084029d105eSJ. Bruce Fields return -EINVAL; 4085029d105eSJ. Bruce Fields } 4086029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4087029d105eSJ. Bruce Fields *acl_len = attrlen; 40888c233cf9SJ. Bruce Fields } else 40898c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4090029d105eSJ. Bruce Fields 4091029d105eSJ. Bruce Fields out: 4092029d105eSJ. Bruce Fields return status; 4093029d105eSJ. Bruce Fields } 4094029d105eSJ. Bruce Fields 40951da177e4SLinus Torvalds static int 40961da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 40971da177e4SLinus Torvalds { 40981da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 40991da177e4SLinus Torvalds } 41001da177e4SLinus Torvalds 41019e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 41021da177e4SLinus Torvalds { 41038687b63aSAl Viro __be32 *p; 41041da177e4SLinus Torvalds uint32_t bmlen; 41051da177e4SLinus Torvalds int status; 41061da177e4SLinus Torvalds 41071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 41081da177e4SLinus Torvalds if (status) 41091da177e4SLinus Torvalds return status; 41101da177e4SLinus Torvalds READ_BUF(4); 41111da177e4SLinus Torvalds READ32(bmlen); 41121da177e4SLinus Torvalds READ_BUF(bmlen << 2); 41131da177e4SLinus Torvalds return 0; 41141da177e4SLinus Torvalds } 41151da177e4SLinus Torvalds 4116adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 41171da177e4SLinus Torvalds { 41188687b63aSAl Viro __be32 *p; 41191da177e4SLinus Torvalds uint32_t opnum; 41201da177e4SLinus Torvalds int32_t nfserr; 41211da177e4SLinus Torvalds 41221da177e4SLinus Torvalds READ_BUF(8); 41231da177e4SLinus Torvalds READ32(opnum); 41241da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4125fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 41261da177e4SLinus Torvalds " %d\n", opnum); 41271da177e4SLinus Torvalds return -EIO; 41281da177e4SLinus Torvalds } 41291da177e4SLinus Torvalds READ32(nfserr); 41301da177e4SLinus Torvalds if (nfserr == NFS_OK) { 41318ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 41321da177e4SLinus Torvalds READ64(clp->cl_clientid); 41338ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 41341da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 41351da177e4SLinus Torvalds uint32_t len; 41361da177e4SLinus Torvalds 41371da177e4SLinus Torvalds /* skip netid string */ 41381da177e4SLinus Torvalds READ_BUF(4); 41391da177e4SLinus Torvalds READ32(len); 41401da177e4SLinus Torvalds READ_BUF(len); 41411da177e4SLinus Torvalds 41421da177e4SLinus Torvalds /* skip uaddr string */ 41431da177e4SLinus Torvalds READ_BUF(4); 41441da177e4SLinus Torvalds READ32(len); 41451da177e4SLinus Torvalds READ_BUF(len); 41461da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 41471da177e4SLinus Torvalds } else 4148856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 41491da177e4SLinus Torvalds 41501da177e4SLinus Torvalds return 0; 41511da177e4SLinus Torvalds } 41521da177e4SLinus Torvalds 41531da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 41541da177e4SLinus Torvalds { 41551da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 41561da177e4SLinus Torvalds } 41571da177e4SLinus Torvalds 41581da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 41591da177e4SLinus Torvalds { 41608687b63aSAl Viro __be32 *p; 41611da177e4SLinus Torvalds int status; 41621da177e4SLinus Torvalds 41631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 41641da177e4SLinus Torvalds if (status) 41651da177e4SLinus Torvalds return status; 41661da177e4SLinus Torvalds 41671da177e4SLinus Torvalds READ_BUF(16); 41681da177e4SLinus Torvalds READ32(res->count); 41691da177e4SLinus Torvalds READ32(res->verf->committed); 41701da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 41711da177e4SLinus Torvalds return 0; 41721da177e4SLinus Torvalds } 41731da177e4SLinus Torvalds 41741da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 41751da177e4SLinus Torvalds { 41761da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 41771da177e4SLinus Torvalds } 41781da177e4SLinus Torvalds 417999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 418099fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 418199fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 418299fe60d0SBenny Halevy { 418399fe60d0SBenny Halevy __be32 *p; 418499fe60d0SBenny Halevy uint32_t dummy; 418599fe60d0SBenny Halevy int status; 418699fe60d0SBenny Halevy struct nfs_client *clp = res->client; 418799fe60d0SBenny Halevy 418899fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 418999fe60d0SBenny Halevy if (status) 419099fe60d0SBenny Halevy return status; 419199fe60d0SBenny Halevy 419299fe60d0SBenny Halevy READ_BUF(8); 419399fe60d0SBenny Halevy READ64(clp->cl_ex_clid); 419499fe60d0SBenny Halevy READ_BUF(12); 419599fe60d0SBenny Halevy READ32(clp->cl_seqid); 419699fe60d0SBenny Halevy READ32(clp->cl_exchange_flags); 419799fe60d0SBenny Halevy 419899fe60d0SBenny Halevy /* We ask for SP4_NONE */ 419999fe60d0SBenny Halevy READ32(dummy); 420099fe60d0SBenny Halevy if (dummy != SP4_NONE) 420199fe60d0SBenny Halevy return -EIO; 420299fe60d0SBenny Halevy 420399fe60d0SBenny Halevy /* Throw away minor_id */ 420499fe60d0SBenny Halevy READ_BUF(8); 420599fe60d0SBenny Halevy 420699fe60d0SBenny Halevy /* Throw away Major id */ 420799fe60d0SBenny Halevy READ_BUF(4); 420899fe60d0SBenny Halevy READ32(dummy); 420999fe60d0SBenny Halevy READ_BUF(dummy); 421099fe60d0SBenny Halevy 421199fe60d0SBenny Halevy /* Throw away server_scope */ 421299fe60d0SBenny Halevy READ_BUF(4); 421399fe60d0SBenny Halevy READ32(dummy); 421499fe60d0SBenny Halevy READ_BUF(dummy); 421599fe60d0SBenny Halevy 421699fe60d0SBenny Halevy /* Throw away Implementation id array */ 421799fe60d0SBenny Halevy READ_BUF(4); 421899fe60d0SBenny Halevy READ32(dummy); 421999fe60d0SBenny Halevy READ_BUF(dummy); 422099fe60d0SBenny Halevy 422199fe60d0SBenny Halevy return 0; 422299fe60d0SBenny Halevy } 4223fc931582SAndy Adamson 4224fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4225fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4226fc931582SAndy Adamson { 4227fc931582SAndy Adamson __be32 *p; 4228fc931582SAndy Adamson u32 nr_attrs; 4229fc931582SAndy Adamson 4230fc931582SAndy Adamson READ_BUF(28); 4231fc931582SAndy Adamson READ32(attrs->headerpadsz); 4232fc931582SAndy Adamson READ32(attrs->max_rqst_sz); 4233fc931582SAndy Adamson READ32(attrs->max_resp_sz); 4234fc931582SAndy Adamson READ32(attrs->max_resp_sz_cached); 4235fc931582SAndy Adamson READ32(attrs->max_ops); 4236fc931582SAndy Adamson READ32(attrs->max_reqs); 4237fc931582SAndy Adamson READ32(nr_attrs); 4238fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4239fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4240fc931582SAndy Adamson __func__, nr_attrs); 4241fc931582SAndy Adamson return -EINVAL; 4242fc931582SAndy Adamson } 4243fc931582SAndy Adamson if (nr_attrs == 1) 4244fc931582SAndy Adamson READ_BUF(4); /* skip rdma_attrs */ 4245fc931582SAndy Adamson return 0; 4246fc931582SAndy Adamson } 4247fc931582SAndy Adamson 4248fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4249fc931582SAndy Adamson struct nfs41_create_session_res *res) 4250fc931582SAndy Adamson { 4251fc931582SAndy Adamson __be32 *p; 4252fc931582SAndy Adamson int status; 4253fc931582SAndy Adamson struct nfs_client *clp = res->client; 4254fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4255fc931582SAndy Adamson 4256fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4257fc931582SAndy Adamson 4258fc931582SAndy Adamson if (status) 4259fc931582SAndy Adamson return status; 4260fc931582SAndy Adamson 4261fc931582SAndy Adamson /* sessionid */ 4262fc931582SAndy Adamson READ_BUF(NFS4_MAX_SESSIONID_LEN); 4263fc931582SAndy Adamson COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); 4264fc931582SAndy Adamson 4265fc931582SAndy Adamson /* seqid, flags */ 4266fc931582SAndy Adamson READ_BUF(8); 4267fc931582SAndy Adamson READ32(clp->cl_seqid); 4268fc931582SAndy Adamson READ32(session->flags); 4269fc931582SAndy Adamson 4270fc931582SAndy Adamson /* Channel attributes */ 4271fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4272fc931582SAndy Adamson if (!status) 4273fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4274fc931582SAndy Adamson return status; 4275fc931582SAndy Adamson } 42760f3e66c6SAndy Adamson 42770f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 42780f3e66c6SAndy Adamson { 42790f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 42800f3e66c6SAndy Adamson } 428199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 428299fe60d0SBenny Halevy 42839b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 42849b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 42859b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 42869b7b9fccSAndy Adamson { 42879b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4288fc01cea9SAndy Adamson struct nfs4_slot *slot; 4289fc01cea9SAndy Adamson struct nfs4_sessionid id; 4290fc01cea9SAndy Adamson u32 dummy; 4291fc01cea9SAndy Adamson int status; 4292fc01cea9SAndy Adamson __be32 *p; 4293fc01cea9SAndy Adamson 42949b7b9fccSAndy Adamson if (!res->sr_session) 42959b7b9fccSAndy Adamson return 0; 42969b7b9fccSAndy Adamson 4297fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4298fc01cea9SAndy Adamson if (status) 4299fc01cea9SAndy Adamson goto out_err; 43009b7b9fccSAndy Adamson 4301fc01cea9SAndy Adamson /* 4302fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4303fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4304fc01cea9SAndy Adamson */ 4305fc01cea9SAndy Adamson status = -ESERVERFAULT; 4306fc01cea9SAndy Adamson 4307fc01cea9SAndy Adamson slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; 4308fc01cea9SAndy Adamson READ_BUF(NFS4_MAX_SESSIONID_LEN + 20); 4309fc01cea9SAndy Adamson COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN); 4310fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4311fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4312fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4313fc01cea9SAndy Adamson goto out_err; 4314fc01cea9SAndy Adamson } 4315fc01cea9SAndy Adamson /* seqid */ 4316fc01cea9SAndy Adamson READ32(dummy); 4317fc01cea9SAndy Adamson if (dummy != slot->seq_nr) { 4318fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4319fc01cea9SAndy Adamson goto out_err; 4320fc01cea9SAndy Adamson } 4321fc01cea9SAndy Adamson /* slot id */ 4322fc01cea9SAndy Adamson READ32(dummy); 4323fc01cea9SAndy Adamson if (dummy != res->sr_slotid) { 4324fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4325fc01cea9SAndy Adamson goto out_err; 4326fc01cea9SAndy Adamson } 4327fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 4328fc01cea9SAndy Adamson READ32(dummy); 4329fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 4330fc01cea9SAndy Adamson READ32(dummy); 4331fc01cea9SAndy Adamson /* result flags - currently not processed */ 4332fc01cea9SAndy Adamson READ32(dummy); 4333fc01cea9SAndy Adamson status = 0; 4334fc01cea9SAndy Adamson out_err: 4335fc01cea9SAndy Adamson res->sr_status = status; 4336fc01cea9SAndy Adamson return status; 4337fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 43389b7b9fccSAndy Adamson return 0; 4339fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 43409b7b9fccSAndy Adamson } 43419b7b9fccSAndy Adamson 43421da177e4SLinus Torvalds /* 434349c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 434449c2559eSBenny Halevy */ 434549c2559eSBenny Halevy 434649c2559eSBenny Halevy /* 43471da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 43481da177e4SLinus Torvalds */ 43498687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 43501da177e4SLinus Torvalds { 43511da177e4SLinus Torvalds struct xdr_stream xdr; 43521da177e4SLinus Torvalds struct compound_hdr hdr; 43531da177e4SLinus Torvalds int status; 43541da177e4SLinus Torvalds 43551da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43561da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43571da177e4SLinus Torvalds if (status) 43581da177e4SLinus Torvalds goto out; 43599b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43609b7b9fccSAndy Adamson if (status) 43619b7b9fccSAndy Adamson goto out; 43621da177e4SLinus Torvalds status = decode_putfh(&xdr); 43631da177e4SLinus Torvalds if (status) 43641da177e4SLinus Torvalds goto out; 43651da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4366516a6af6STrond Myklebust if (status != 0) 4367516a6af6STrond Myklebust goto out; 4368516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43691da177e4SLinus Torvalds out: 43701da177e4SLinus Torvalds return status; 43711da177e4SLinus Torvalds } 43721da177e4SLinus Torvalds 43731da177e4SLinus Torvalds /* 43741da177e4SLinus Torvalds * Decode ACCESS response 43751da177e4SLinus Torvalds */ 43768687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 43771da177e4SLinus Torvalds { 43781da177e4SLinus Torvalds struct xdr_stream xdr; 43791da177e4SLinus Torvalds struct compound_hdr hdr; 43801da177e4SLinus Torvalds int status; 43811da177e4SLinus Torvalds 43821da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43839b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 43849b7b9fccSAndy Adamson if (status) 43859b7b9fccSAndy Adamson goto out; 43869b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43879b7b9fccSAndy Adamson if (status) 43881da177e4SLinus Torvalds goto out; 438976b32999STrond Myklebust status = decode_putfh(&xdr); 439076b32999STrond Myklebust if (status != 0) 439176b32999STrond Myklebust goto out; 43921da177e4SLinus Torvalds status = decode_access(&xdr, res); 439376b32999STrond Myklebust if (status != 0) 439476b32999STrond Myklebust goto out; 439576b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43961da177e4SLinus Torvalds out: 43971da177e4SLinus Torvalds return status; 43981da177e4SLinus Torvalds } 43991da177e4SLinus Torvalds 44001da177e4SLinus Torvalds /* 44011da177e4SLinus Torvalds * Decode LOOKUP response 44021da177e4SLinus Torvalds */ 44038687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 44041da177e4SLinus Torvalds { 44051da177e4SLinus Torvalds struct xdr_stream xdr; 44061da177e4SLinus Torvalds struct compound_hdr hdr; 44071da177e4SLinus Torvalds int status; 44081da177e4SLinus Torvalds 44091da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44109b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44119b7b9fccSAndy Adamson if (status) 44129b7b9fccSAndy Adamson goto out; 44139b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44149b7b9fccSAndy Adamson if (status) 44151da177e4SLinus Torvalds goto out; 44161da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44171da177e4SLinus Torvalds goto out; 44181da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 44191da177e4SLinus Torvalds goto out; 44201da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 44211da177e4SLinus Torvalds goto out; 44221da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 44231da177e4SLinus Torvalds out: 44241da177e4SLinus Torvalds return status; 44251da177e4SLinus Torvalds } 44261da177e4SLinus Torvalds 44271da177e4SLinus Torvalds /* 44281da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 44291da177e4SLinus Torvalds */ 44308687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 44311da177e4SLinus Torvalds { 44321da177e4SLinus Torvalds struct xdr_stream xdr; 44331da177e4SLinus Torvalds struct compound_hdr hdr; 44341da177e4SLinus Torvalds int status; 44351da177e4SLinus Torvalds 44361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44379b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44389b7b9fccSAndy Adamson if (status) 44399b7b9fccSAndy Adamson goto out; 44409b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44419b7b9fccSAndy Adamson if (status) 44421da177e4SLinus Torvalds goto out; 44431da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 44441da177e4SLinus Torvalds goto out; 44451da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 44461da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 44471da177e4SLinus Torvalds out: 44481da177e4SLinus Torvalds return status; 44491da177e4SLinus Torvalds } 44501da177e4SLinus Torvalds 44511da177e4SLinus Torvalds /* 44521da177e4SLinus Torvalds * Decode REMOVE response 44531da177e4SLinus Torvalds */ 44544fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 44551da177e4SLinus Torvalds { 44561da177e4SLinus Torvalds struct xdr_stream xdr; 44571da177e4SLinus Torvalds struct compound_hdr hdr; 44581da177e4SLinus Torvalds int status; 44591da177e4SLinus Torvalds 44601da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44619b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44629b7b9fccSAndy Adamson if (status) 44639b7b9fccSAndy Adamson goto out; 44649b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44659b7b9fccSAndy Adamson if (status) 44661da177e4SLinus Torvalds goto out; 446716e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 446816e42959STrond Myklebust goto out; 446916e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 447016e42959STrond Myklebust goto out; 44714fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 44721da177e4SLinus Torvalds out: 44731da177e4SLinus Torvalds return status; 44741da177e4SLinus Torvalds } 44751da177e4SLinus Torvalds 44761da177e4SLinus Torvalds /* 44771da177e4SLinus Torvalds * Decode RENAME response 44781da177e4SLinus Torvalds */ 44798687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 44801da177e4SLinus Torvalds { 44811da177e4SLinus Torvalds struct xdr_stream xdr; 44821da177e4SLinus Torvalds struct compound_hdr hdr; 44831da177e4SLinus Torvalds int status; 44841da177e4SLinus Torvalds 44851da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44869b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44879b7b9fccSAndy Adamson if (status) 44889b7b9fccSAndy Adamson goto out; 44899b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44909b7b9fccSAndy Adamson if (status) 44911da177e4SLinus Torvalds goto out; 44921da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44931da177e4SLinus Torvalds goto out; 44941da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 44951da177e4SLinus Torvalds goto out; 44961da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44971da177e4SLinus Torvalds goto out; 44986caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 44996caf2c82STrond Myklebust goto out; 45006caf2c82STrond Myklebust /* Current FH is target directory */ 45016caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 45026caf2c82STrond Myklebust goto out; 45036caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 45046caf2c82STrond Myklebust goto out; 45056caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 45061da177e4SLinus Torvalds out: 45071da177e4SLinus Torvalds return status; 45081da177e4SLinus Torvalds } 45091da177e4SLinus Torvalds 45101da177e4SLinus Torvalds /* 45111da177e4SLinus Torvalds * Decode LINK response 45121da177e4SLinus Torvalds */ 45138687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 45141da177e4SLinus Torvalds { 45151da177e4SLinus Torvalds struct xdr_stream xdr; 45161da177e4SLinus Torvalds struct compound_hdr hdr; 45171da177e4SLinus Torvalds int status; 45181da177e4SLinus Torvalds 45191da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45209b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 45219b7b9fccSAndy Adamson if (status) 45229b7b9fccSAndy Adamson goto out; 45239b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45249b7b9fccSAndy Adamson if (status) 45251da177e4SLinus Torvalds goto out; 45261da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45271da177e4SLinus Torvalds goto out; 45281da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 45291da177e4SLinus Torvalds goto out; 45301da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45311da177e4SLinus Torvalds goto out; 453291ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 453391ba2eeeSTrond Myklebust goto out; 453491ba2eeeSTrond Myklebust /* 453591ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 453691ba2eeeSTrond Myklebust * filehandle. 453791ba2eeeSTrond Myklebust */ 453891ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 453991ba2eeeSTrond Myklebust goto out; 454091ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 454191ba2eeeSTrond Myklebust goto out; 454291ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 45431da177e4SLinus Torvalds out: 45441da177e4SLinus Torvalds return status; 45451da177e4SLinus Torvalds } 45461da177e4SLinus Torvalds 45471da177e4SLinus Torvalds /* 45481da177e4SLinus Torvalds * Decode CREATE response 45491da177e4SLinus Torvalds */ 45508687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 45511da177e4SLinus Torvalds { 45521da177e4SLinus Torvalds struct xdr_stream xdr; 45531da177e4SLinus Torvalds struct compound_hdr hdr; 45541da177e4SLinus Torvalds int status; 45551da177e4SLinus Torvalds 45561da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45579b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 45589b7b9fccSAndy Adamson if (status) 45599b7b9fccSAndy Adamson goto out; 45609b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45619b7b9fccSAndy Adamson if (status) 45621da177e4SLinus Torvalds goto out; 45631da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45641da177e4SLinus Torvalds goto out; 456556ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 456656ae19f3STrond Myklebust goto out; 45671da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 45681da177e4SLinus Torvalds goto out; 45691da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 45701da177e4SLinus Torvalds goto out; 457156ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 457256ae19f3STrond Myklebust goto out; 457356ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 457456ae19f3STrond Myklebust goto out; 457556ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 45761da177e4SLinus Torvalds out: 45771da177e4SLinus Torvalds return status; 45781da177e4SLinus Torvalds } 45791da177e4SLinus Torvalds 45801da177e4SLinus Torvalds /* 45811da177e4SLinus Torvalds * Decode SYMLINK response 45821da177e4SLinus Torvalds */ 45838687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 45841da177e4SLinus Torvalds { 45851da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 45861da177e4SLinus Torvalds } 45871da177e4SLinus Torvalds 45881da177e4SLinus Torvalds /* 45891da177e4SLinus Torvalds * Decode GETATTR response 45901da177e4SLinus Torvalds */ 45918687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 45921da177e4SLinus Torvalds { 45931da177e4SLinus Torvalds struct xdr_stream xdr; 45941da177e4SLinus Torvalds struct compound_hdr hdr; 45951da177e4SLinus Torvalds int status; 45961da177e4SLinus Torvalds 45971da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45981da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 45991da177e4SLinus Torvalds if (status) 46001da177e4SLinus Torvalds goto out; 46019b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46029b7b9fccSAndy Adamson if (status) 46039b7b9fccSAndy Adamson goto out; 46041da177e4SLinus Torvalds status = decode_putfh(&xdr); 46051da177e4SLinus Torvalds if (status) 46061da177e4SLinus Torvalds goto out; 46071da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 46081da177e4SLinus Torvalds out: 46091da177e4SLinus Torvalds return status; 46101da177e4SLinus Torvalds } 46111da177e4SLinus Torvalds 461223ec6965SJ. Bruce Fields /* 461323ec6965SJ. Bruce Fields * Encode an SETACL request 461423ec6965SJ. Bruce Fields */ 461523ec6965SJ. Bruce Fields static int 46168687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 461723ec6965SJ. Bruce Fields { 461823ec6965SJ. Bruce Fields struct xdr_stream xdr; 461923ec6965SJ. Bruce Fields struct compound_hdr hdr = { 462066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 462123ec6965SJ. Bruce Fields }; 462223ec6965SJ. Bruce Fields int status; 462323ec6965SJ. Bruce Fields 462423ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 46250c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 46269b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 4627cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 4628d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 4629d017931cSAndy Adamson encode_nops(&hdr); 463023ec6965SJ. Bruce Fields return status; 463123ec6965SJ. Bruce Fields } 463205d564feSAndy Adamson 463323ec6965SJ. Bruce Fields /* 463423ec6965SJ. Bruce Fields * Decode SETACL response 463523ec6965SJ. Bruce Fields */ 463623ec6965SJ. Bruce Fields static int 463773c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 463873c403a9SBenny Halevy struct nfs_setaclres *res) 463923ec6965SJ. Bruce Fields { 464023ec6965SJ. Bruce Fields struct xdr_stream xdr; 464123ec6965SJ. Bruce Fields struct compound_hdr hdr; 464223ec6965SJ. Bruce Fields int status; 464323ec6965SJ. Bruce Fields 464423ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 464523ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 464623ec6965SJ. Bruce Fields if (status) 464723ec6965SJ. Bruce Fields goto out; 46489b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46499b7b9fccSAndy Adamson if (status) 46509b7b9fccSAndy Adamson goto out; 465123ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 465223ec6965SJ. Bruce Fields if (status) 465323ec6965SJ. Bruce Fields goto out; 46549e9ecc03SBenny Halevy status = decode_setattr(&xdr); 465523ec6965SJ. Bruce Fields out: 465623ec6965SJ. Bruce Fields return status; 465723ec6965SJ. Bruce Fields } 46581da177e4SLinus Torvalds 46591da177e4SLinus Torvalds /* 4660029d105eSJ. Bruce Fields * Decode GETACL response 4661029d105eSJ. Bruce Fields */ 4662029d105eSJ. Bruce Fields static int 4663663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 4664663c79b3SBenny Halevy struct nfs_getaclres *res) 4665029d105eSJ. Bruce Fields { 4666029d105eSJ. Bruce Fields struct xdr_stream xdr; 4667029d105eSJ. Bruce Fields struct compound_hdr hdr; 4668029d105eSJ. Bruce Fields int status; 4669029d105eSJ. Bruce Fields 4670029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4671029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4672029d105eSJ. Bruce Fields if (status) 4673029d105eSJ. Bruce Fields goto out; 46749b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46759b7b9fccSAndy Adamson if (status) 46769b7b9fccSAndy Adamson goto out; 4677029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4678029d105eSJ. Bruce Fields if (status) 4679029d105eSJ. Bruce Fields goto out; 4680663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 4681029d105eSJ. Bruce Fields 4682029d105eSJ. Bruce Fields out: 4683029d105eSJ. Bruce Fields return status; 4684029d105eSJ. Bruce Fields } 4685029d105eSJ. Bruce Fields 4686029d105eSJ. Bruce Fields /* 46871da177e4SLinus Torvalds * Decode CLOSE response 46881da177e4SLinus Torvalds */ 46898687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 46901da177e4SLinus Torvalds { 46911da177e4SLinus Torvalds struct xdr_stream xdr; 46921da177e4SLinus Torvalds struct compound_hdr hdr; 46931da177e4SLinus Torvalds int status; 46941da177e4SLinus Torvalds 46951da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46961da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 46971da177e4SLinus Torvalds if (status) 46981da177e4SLinus Torvalds goto out; 46999b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47009b7b9fccSAndy Adamson if (status) 47019b7b9fccSAndy Adamson goto out; 47021da177e4SLinus Torvalds status = decode_putfh(&xdr); 47031da177e4SLinus Torvalds if (status) 47041da177e4SLinus Torvalds goto out; 47051da177e4SLinus Torvalds status = decode_close(&xdr, res); 4706516a6af6STrond Myklebust if (status != 0) 4707516a6af6STrond Myklebust goto out; 4708516a6af6STrond Myklebust /* 4709516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4710516a6af6STrond Myklebust * in which case the getattr call will fail with 4711516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4712516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4713516a6af6STrond Myklebust */ 4714516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 47151da177e4SLinus Torvalds out: 47161da177e4SLinus Torvalds return status; 47171da177e4SLinus Torvalds } 47181da177e4SLinus Torvalds 47191da177e4SLinus Torvalds /* 47201da177e4SLinus Torvalds * Decode OPEN response 47211da177e4SLinus Torvalds */ 47228687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 47231da177e4SLinus Torvalds { 47241da177e4SLinus Torvalds struct xdr_stream xdr; 47251da177e4SLinus Torvalds struct compound_hdr hdr; 47261da177e4SLinus Torvalds int status; 47271da177e4SLinus Torvalds 47281da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47291da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47301da177e4SLinus Torvalds if (status) 47311da177e4SLinus Torvalds goto out; 47329b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47339b7b9fccSAndy Adamson if (status) 47349b7b9fccSAndy Adamson goto out; 47351da177e4SLinus Torvalds status = decode_putfh(&xdr); 47361da177e4SLinus Torvalds if (status) 47371da177e4SLinus Torvalds goto out; 473856ae19f3STrond Myklebust status = decode_savefh(&xdr); 473956ae19f3STrond Myklebust if (status) 474056ae19f3STrond Myklebust goto out; 47411da177e4SLinus Torvalds status = decode_open(&xdr, res); 47421da177e4SLinus Torvalds if (status) 47431da177e4SLinus Torvalds goto out; 47449936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 47451da177e4SLinus Torvalds goto out; 474656ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 474756ae19f3STrond Myklebust goto out; 4748365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 474956ae19f3STrond Myklebust goto out; 475056ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 47511da177e4SLinus Torvalds out: 47521da177e4SLinus Torvalds return status; 47531da177e4SLinus Torvalds } 47541da177e4SLinus Torvalds 47551da177e4SLinus Torvalds /* 47561da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 47571da177e4SLinus Torvalds */ 47588687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 47591da177e4SLinus Torvalds { 47601da177e4SLinus Torvalds struct xdr_stream xdr; 47611da177e4SLinus Torvalds struct compound_hdr hdr; 47621da177e4SLinus Torvalds int status; 47631da177e4SLinus Torvalds 47641da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47651da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47661da177e4SLinus Torvalds if (status) 47671da177e4SLinus Torvalds goto out; 47681da177e4SLinus Torvalds status = decode_putfh(&xdr); 47691da177e4SLinus Torvalds if (status) 47701da177e4SLinus Torvalds goto out; 47711da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 47721da177e4SLinus Torvalds out: 47731da177e4SLinus Torvalds return status; 47741da177e4SLinus Torvalds } 47751da177e4SLinus Torvalds 47761da177e4SLinus Torvalds /* 47771da177e4SLinus Torvalds * Decode OPEN response 47781da177e4SLinus Torvalds */ 47798687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 47801da177e4SLinus Torvalds { 47811da177e4SLinus Torvalds struct xdr_stream xdr; 47821da177e4SLinus Torvalds struct compound_hdr hdr; 47831da177e4SLinus Torvalds int status; 47841da177e4SLinus Torvalds 47851da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47861da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47871da177e4SLinus Torvalds if (status) 47881da177e4SLinus Torvalds goto out; 47899b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47909b7b9fccSAndy Adamson if (status) 47919b7b9fccSAndy Adamson goto out; 47921da177e4SLinus Torvalds status = decode_putfh(&xdr); 47931da177e4SLinus Torvalds if (status) 47941da177e4SLinus Torvalds goto out; 47951da177e4SLinus Torvalds status = decode_open(&xdr, res); 4796864472e9STrond Myklebust if (status) 4797864472e9STrond Myklebust goto out; 4798864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 47991da177e4SLinus Torvalds out: 48001da177e4SLinus Torvalds return status; 48011da177e4SLinus Torvalds } 48021da177e4SLinus Torvalds 48031da177e4SLinus Torvalds /* 48041da177e4SLinus Torvalds * Decode SETATTR response 48051da177e4SLinus Torvalds */ 48068687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 48071da177e4SLinus Torvalds { 48081da177e4SLinus Torvalds struct xdr_stream xdr; 48091da177e4SLinus Torvalds struct compound_hdr hdr; 48101da177e4SLinus Torvalds int status; 48111da177e4SLinus Torvalds 48121da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48131da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48141da177e4SLinus Torvalds if (status) 48151da177e4SLinus Torvalds goto out; 48169b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48179b7b9fccSAndy Adamson if (status) 48189b7b9fccSAndy Adamson goto out; 48191da177e4SLinus Torvalds status = decode_putfh(&xdr); 48201da177e4SLinus Torvalds if (status) 48211da177e4SLinus Torvalds goto out; 48229e9ecc03SBenny Halevy status = decode_setattr(&xdr); 48231da177e4SLinus Torvalds if (status) 48241da177e4SLinus Torvalds goto out; 482578f945f8STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 48261da177e4SLinus Torvalds out: 48271da177e4SLinus Torvalds return status; 48281da177e4SLinus Torvalds } 48291da177e4SLinus Torvalds 48301da177e4SLinus Torvalds /* 48311da177e4SLinus Torvalds * Decode LOCK response 48321da177e4SLinus Torvalds */ 48338687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 48341da177e4SLinus Torvalds { 48351da177e4SLinus Torvalds struct xdr_stream xdr; 48361da177e4SLinus Torvalds struct compound_hdr hdr; 48371da177e4SLinus Torvalds int status; 48381da177e4SLinus Torvalds 48391da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48401da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48411da177e4SLinus Torvalds if (status) 48421da177e4SLinus Torvalds goto out; 48439b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48449b7b9fccSAndy Adamson if (status) 48459b7b9fccSAndy Adamson goto out; 48461da177e4SLinus Torvalds status = decode_putfh(&xdr); 48471da177e4SLinus Torvalds if (status) 48481da177e4SLinus Torvalds goto out; 48491da177e4SLinus Torvalds status = decode_lock(&xdr, res); 48501da177e4SLinus Torvalds out: 48511da177e4SLinus Torvalds return status; 48521da177e4SLinus Torvalds } 48531da177e4SLinus Torvalds 48541da177e4SLinus Torvalds /* 48551da177e4SLinus Torvalds * Decode LOCKT response 48561da177e4SLinus Torvalds */ 48578687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 48581da177e4SLinus Torvalds { 48591da177e4SLinus Torvalds struct xdr_stream xdr; 48601da177e4SLinus Torvalds struct compound_hdr hdr; 48611da177e4SLinus Torvalds int status; 48621da177e4SLinus Torvalds 48631da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48641da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48651da177e4SLinus Torvalds if (status) 48661da177e4SLinus Torvalds goto out; 48679b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48689b7b9fccSAndy Adamson if (status) 48699b7b9fccSAndy Adamson goto out; 48701da177e4SLinus Torvalds status = decode_putfh(&xdr); 48711da177e4SLinus Torvalds if (status) 48721da177e4SLinus Torvalds goto out; 48731da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 48741da177e4SLinus Torvalds out: 48751da177e4SLinus Torvalds return status; 48761da177e4SLinus Torvalds } 48771da177e4SLinus Torvalds 48781da177e4SLinus Torvalds /* 48791da177e4SLinus Torvalds * Decode LOCKU response 48801da177e4SLinus Torvalds */ 48818687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 48821da177e4SLinus Torvalds { 48831da177e4SLinus Torvalds struct xdr_stream xdr; 48841da177e4SLinus Torvalds struct compound_hdr hdr; 48851da177e4SLinus Torvalds int status; 48861da177e4SLinus Torvalds 48871da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48881da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48891da177e4SLinus Torvalds if (status) 48901da177e4SLinus Torvalds goto out; 48919b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48929b7b9fccSAndy Adamson if (status) 48939b7b9fccSAndy Adamson goto out; 48941da177e4SLinus Torvalds status = decode_putfh(&xdr); 48951da177e4SLinus Torvalds if (status) 48961da177e4SLinus Torvalds goto out; 48971da177e4SLinus Torvalds status = decode_locku(&xdr, res); 48981da177e4SLinus Torvalds out: 48991da177e4SLinus Torvalds return status; 49001da177e4SLinus Torvalds } 49011da177e4SLinus Torvalds 49021da177e4SLinus Torvalds /* 49031da177e4SLinus Torvalds * Decode READLINK response 49041da177e4SLinus Torvalds */ 4905f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 4906f50c7000SBenny Halevy struct nfs4_readlink_res *res) 49071da177e4SLinus Torvalds { 49081da177e4SLinus Torvalds struct xdr_stream xdr; 49091da177e4SLinus Torvalds struct compound_hdr hdr; 49101da177e4SLinus Torvalds int status; 49111da177e4SLinus Torvalds 49121da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49131da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49141da177e4SLinus Torvalds if (status) 49151da177e4SLinus Torvalds goto out; 49169b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49179b7b9fccSAndy Adamson if (status) 49189b7b9fccSAndy Adamson goto out; 49191da177e4SLinus Torvalds status = decode_putfh(&xdr); 49201da177e4SLinus Torvalds if (status) 49211da177e4SLinus Torvalds goto out; 49221da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 49231da177e4SLinus Torvalds out: 49241da177e4SLinus Torvalds return status; 49251da177e4SLinus Torvalds } 49261da177e4SLinus Torvalds 49271da177e4SLinus Torvalds /* 49281da177e4SLinus Torvalds * Decode READDIR response 49291da177e4SLinus Torvalds */ 49308687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 49311da177e4SLinus Torvalds { 49321da177e4SLinus Torvalds struct xdr_stream xdr; 49331da177e4SLinus Torvalds struct compound_hdr hdr; 49341da177e4SLinus Torvalds int status; 49351da177e4SLinus Torvalds 49361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49371da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49381da177e4SLinus Torvalds if (status) 49391da177e4SLinus Torvalds goto out; 49409b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49419b7b9fccSAndy Adamson if (status) 49429b7b9fccSAndy Adamson goto out; 49431da177e4SLinus Torvalds status = decode_putfh(&xdr); 49441da177e4SLinus Torvalds if (status) 49451da177e4SLinus Torvalds goto out; 49461da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 49471da177e4SLinus Torvalds out: 49481da177e4SLinus Torvalds return status; 49491da177e4SLinus Torvalds } 49501da177e4SLinus Torvalds 49511da177e4SLinus Torvalds /* 49521da177e4SLinus Torvalds * Decode Read response 49531da177e4SLinus Torvalds */ 49548687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 49551da177e4SLinus Torvalds { 49561da177e4SLinus Torvalds struct xdr_stream xdr; 49571da177e4SLinus Torvalds struct compound_hdr hdr; 49581da177e4SLinus Torvalds int status; 49591da177e4SLinus Torvalds 49601da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49611da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49621da177e4SLinus Torvalds if (status) 49631da177e4SLinus Torvalds goto out; 49649b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49659b7b9fccSAndy Adamson if (status) 49669b7b9fccSAndy Adamson goto out; 49671da177e4SLinus Torvalds status = decode_putfh(&xdr); 49681da177e4SLinus Torvalds if (status) 49691da177e4SLinus Torvalds goto out; 49701da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 49711da177e4SLinus Torvalds if (!status) 49721da177e4SLinus Torvalds status = res->count; 49731da177e4SLinus Torvalds out: 49741da177e4SLinus Torvalds return status; 49751da177e4SLinus Torvalds } 49761da177e4SLinus Torvalds 49771da177e4SLinus Torvalds /* 49781da177e4SLinus Torvalds * Decode WRITE response 49791da177e4SLinus Torvalds */ 49808687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 49811da177e4SLinus Torvalds { 49821da177e4SLinus Torvalds struct xdr_stream xdr; 49831da177e4SLinus Torvalds struct compound_hdr hdr; 49841da177e4SLinus Torvalds int status; 49851da177e4SLinus Torvalds 49861da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49871da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49881da177e4SLinus Torvalds if (status) 49891da177e4SLinus Torvalds goto out; 49909b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49919b7b9fccSAndy Adamson if (status) 49929b7b9fccSAndy Adamson goto out; 49931da177e4SLinus Torvalds status = decode_putfh(&xdr); 49941da177e4SLinus Torvalds if (status) 49951da177e4SLinus Torvalds goto out; 49961da177e4SLinus Torvalds status = decode_write(&xdr, res); 49974f9838c7STrond Myklebust if (status) 49984f9838c7STrond Myklebust goto out; 49994f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 50001da177e4SLinus Torvalds if (!status) 50011da177e4SLinus Torvalds status = res->count; 50021da177e4SLinus Torvalds out: 50031da177e4SLinus Torvalds return status; 50041da177e4SLinus Torvalds } 50051da177e4SLinus Torvalds 50061da177e4SLinus Torvalds /* 50071da177e4SLinus Torvalds * Decode COMMIT response 50081da177e4SLinus Torvalds */ 50098687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 50101da177e4SLinus Torvalds { 50111da177e4SLinus Torvalds struct xdr_stream xdr; 50121da177e4SLinus Torvalds struct compound_hdr hdr; 50131da177e4SLinus Torvalds int status; 50141da177e4SLinus Torvalds 50151da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50161da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50171da177e4SLinus Torvalds if (status) 50181da177e4SLinus Torvalds goto out; 50199b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50209b7b9fccSAndy Adamson if (status) 50219b7b9fccSAndy Adamson goto out; 50221da177e4SLinus Torvalds status = decode_putfh(&xdr); 50231da177e4SLinus Torvalds if (status) 50241da177e4SLinus Torvalds goto out; 50251da177e4SLinus Torvalds status = decode_commit(&xdr, res); 50264f9838c7STrond Myklebust if (status) 50274f9838c7STrond Myklebust goto out; 50284f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 50291da177e4SLinus Torvalds out: 50301da177e4SLinus Torvalds return status; 50311da177e4SLinus Torvalds } 50321da177e4SLinus Torvalds 50331da177e4SLinus Torvalds /* 50341da177e4SLinus Torvalds * FSINFO request 50351da177e4SLinus Torvalds */ 50363dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 50373dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 50381da177e4SLinus Torvalds { 50391da177e4SLinus Torvalds struct xdr_stream xdr; 50401da177e4SLinus Torvalds struct compound_hdr hdr; 50411da177e4SLinus Torvalds int status; 50421da177e4SLinus Torvalds 50431da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50441da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50451da177e4SLinus Torvalds if (!status) 50469b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50479b7b9fccSAndy Adamson if (!status) 50481da177e4SLinus Torvalds status = decode_putfh(&xdr); 50491da177e4SLinus Torvalds if (!status) 50503dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 50511da177e4SLinus Torvalds return status; 50521da177e4SLinus Torvalds } 50531da177e4SLinus Torvalds 50541da177e4SLinus Torvalds /* 50551da177e4SLinus Torvalds * PATHCONF request 50561da177e4SLinus Torvalds */ 5057d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5058d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 50591da177e4SLinus Torvalds { 50601da177e4SLinus Torvalds struct xdr_stream xdr; 50611da177e4SLinus Torvalds struct compound_hdr hdr; 50621da177e4SLinus Torvalds int status; 50631da177e4SLinus Torvalds 50641da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50651da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50661da177e4SLinus Torvalds if (!status) 50679b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50689b7b9fccSAndy Adamson if (!status) 50691da177e4SLinus Torvalds status = decode_putfh(&xdr); 50701da177e4SLinus Torvalds if (!status) 5071d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 50721da177e4SLinus Torvalds return status; 50731da177e4SLinus Torvalds } 50741da177e4SLinus Torvalds 50751da177e4SLinus Torvalds /* 50761da177e4SLinus Torvalds * STATFS request 50771da177e4SLinus Torvalds */ 507824ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 507924ad148aSBenny Halevy struct nfs4_statfs_res *res) 50801da177e4SLinus Torvalds { 50811da177e4SLinus Torvalds struct xdr_stream xdr; 50821da177e4SLinus Torvalds struct compound_hdr hdr; 50831da177e4SLinus Torvalds int status; 50841da177e4SLinus Torvalds 50851da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50861da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50871da177e4SLinus Torvalds if (!status) 50889b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50899b7b9fccSAndy Adamson if (!status) 50901da177e4SLinus Torvalds status = decode_putfh(&xdr); 50911da177e4SLinus Torvalds if (!status) 509224ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 50931da177e4SLinus Torvalds return status; 50941da177e4SLinus Torvalds } 50951da177e4SLinus Torvalds 50961da177e4SLinus Torvalds /* 50971da177e4SLinus Torvalds * GETATTR_BITMAP request 50981da177e4SLinus Torvalds */ 50998687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 51001da177e4SLinus Torvalds { 51011da177e4SLinus Torvalds struct xdr_stream xdr; 51021da177e4SLinus Torvalds struct compound_hdr hdr; 51031da177e4SLinus Torvalds int status; 51041da177e4SLinus Torvalds 51051da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51069b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 51079b7b9fccSAndy Adamson if (status) 51089b7b9fccSAndy Adamson goto out; 51099b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 51109b7b9fccSAndy Adamson if (status) 51111da177e4SLinus Torvalds goto out; 51121da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 51131da177e4SLinus Torvalds goto out; 51141da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 51151da177e4SLinus Torvalds out: 51161da177e4SLinus Torvalds return status; 51171da177e4SLinus Torvalds } 51181da177e4SLinus Torvalds 51191da177e4SLinus Torvalds /* 51201da177e4SLinus Torvalds * Decode RENEW response 51211da177e4SLinus Torvalds */ 51228687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 51231da177e4SLinus Torvalds { 51241da177e4SLinus Torvalds struct xdr_stream xdr; 51251da177e4SLinus Torvalds struct compound_hdr hdr; 51261da177e4SLinus Torvalds int status; 51271da177e4SLinus Torvalds 51281da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51291da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51301da177e4SLinus Torvalds if (!status) 51311da177e4SLinus Torvalds status = decode_renew(&xdr); 51321da177e4SLinus Torvalds return status; 51331da177e4SLinus Torvalds } 51341da177e4SLinus Torvalds 51351da177e4SLinus Torvalds /* 51361da177e4SLinus Torvalds * a SETCLIENTID request 51371da177e4SLinus Torvalds */ 51388687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5139adfa6f98SDavid Howells struct nfs_client *clp) 51401da177e4SLinus Torvalds { 51411da177e4SLinus Torvalds struct xdr_stream xdr; 51421da177e4SLinus Torvalds struct compound_hdr hdr; 51431da177e4SLinus Torvalds int status; 51441da177e4SLinus Torvalds 51451da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51461da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51471da177e4SLinus Torvalds if (!status) 51481da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 51491da177e4SLinus Torvalds return status; 51501da177e4SLinus Torvalds } 51511da177e4SLinus Torvalds 51521da177e4SLinus Torvalds /* 51531da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 51541da177e4SLinus Torvalds */ 51558687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 51561da177e4SLinus Torvalds { 51571da177e4SLinus Torvalds struct xdr_stream xdr; 51581da177e4SLinus Torvalds struct compound_hdr hdr; 51591da177e4SLinus Torvalds int status; 51601da177e4SLinus Torvalds 51611da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51621da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51631da177e4SLinus Torvalds if (!status) 51641da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 51651da177e4SLinus Torvalds if (!status) 51661da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 51671da177e4SLinus Torvalds if (!status) 51681da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 51691da177e4SLinus Torvalds return status; 51701da177e4SLinus Torvalds } 51711da177e4SLinus Torvalds 51721da177e4SLinus Torvalds /* 51731da177e4SLinus Torvalds * DELEGRETURN request 51741da177e4SLinus Torvalds */ 51758687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 51761da177e4SLinus Torvalds { 51771da177e4SLinus Torvalds struct xdr_stream xdr; 51781da177e4SLinus Torvalds struct compound_hdr hdr; 51791da177e4SLinus Torvalds int status; 51801da177e4SLinus Torvalds 51811da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51821da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51839b7b9fccSAndy Adamson if (status) 51849b7b9fccSAndy Adamson goto out; 51859b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51869b7b9fccSAndy Adamson if (status) 5187fa178f29STrond Myklebust goto out; 51881da177e4SLinus Torvalds status = decode_putfh(&xdr); 5189fa178f29STrond Myklebust if (status != 0) 5190fa178f29STrond Myklebust goto out; 51911da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5192fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 5193fa178f29STrond Myklebust out: 51941da177e4SLinus Torvalds return status; 51951da177e4SLinus Torvalds } 51961da177e4SLinus Torvalds 5197683b57b4STrond Myklebust /* 5198683b57b4STrond Myklebust * FS_LOCATIONS request 5199683b57b4STrond Myklebust */ 520022958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 520122958463SBenny Halevy struct nfs4_fs_locations_res *res) 5202683b57b4STrond Myklebust { 5203683b57b4STrond Myklebust struct xdr_stream xdr; 5204683b57b4STrond Myklebust struct compound_hdr hdr; 5205683b57b4STrond Myklebust int status; 5206683b57b4STrond Myklebust 5207683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5208683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 52099b7b9fccSAndy Adamson if (status) 52109b7b9fccSAndy Adamson goto out; 52119b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 52129b7b9fccSAndy Adamson if (status) 5213683b57b4STrond Myklebust goto out; 5214683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5215683b57b4STrond Myklebust goto out; 5216683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5217683b57b4STrond Myklebust goto out; 5218683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 521922958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 522022958463SBenny Halevy res->fs_locations->server); 5221683b57b4STrond Myklebust out: 5222683b57b4STrond Myklebust return status; 5223683b57b4STrond Myklebust } 5224683b57b4STrond Myklebust 522599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 522699fe60d0SBenny Halevy /* 522799fe60d0SBenny Halevy * EXCHANGE_ID request 522899fe60d0SBenny Halevy */ 522999fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 523099fe60d0SBenny Halevy void *res) 523199fe60d0SBenny Halevy { 523299fe60d0SBenny Halevy struct xdr_stream xdr; 523399fe60d0SBenny Halevy struct compound_hdr hdr; 523499fe60d0SBenny Halevy int status; 523599fe60d0SBenny Halevy 523699fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 523799fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 523899fe60d0SBenny Halevy if (!status) 523999fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 524099fe60d0SBenny Halevy return status; 524199fe60d0SBenny Halevy } 52422050f0ccSAndy Adamson 52432050f0ccSAndy Adamson /* 5244fc931582SAndy Adamson * a CREATE_SESSION request 5245fc931582SAndy Adamson */ 5246fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5247fc931582SAndy Adamson struct nfs41_create_session_res *res) 5248fc931582SAndy Adamson { 5249fc931582SAndy Adamson struct xdr_stream xdr; 5250fc931582SAndy Adamson struct compound_hdr hdr; 5251fc931582SAndy Adamson int status; 5252fc931582SAndy Adamson 5253fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5254fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5255fc931582SAndy Adamson if (!status) 5256fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5257fc931582SAndy Adamson return status; 5258fc931582SAndy Adamson } 5259fc931582SAndy Adamson 5260fc931582SAndy Adamson /* 52610f3e66c6SAndy Adamson * a DESTROY_SESSION request 52620f3e66c6SAndy Adamson */ 52630f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 52640f3e66c6SAndy Adamson void *dummy) 52650f3e66c6SAndy Adamson { 52660f3e66c6SAndy Adamson struct xdr_stream xdr; 52670f3e66c6SAndy Adamson struct compound_hdr hdr; 52680f3e66c6SAndy Adamson int status; 52690f3e66c6SAndy Adamson 52700f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52710f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 52720f3e66c6SAndy Adamson if (!status) 52730f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 52740f3e66c6SAndy Adamson return status; 52750f3e66c6SAndy Adamson } 52760f3e66c6SAndy Adamson 52770f3e66c6SAndy Adamson /* 5278fc01cea9SAndy Adamson * a SEQUENCE request 5279fc01cea9SAndy Adamson */ 5280fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 5281fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5282fc01cea9SAndy Adamson { 5283fc01cea9SAndy Adamson struct xdr_stream xdr; 5284fc01cea9SAndy Adamson struct compound_hdr hdr; 5285fc01cea9SAndy Adamson int status; 5286fc01cea9SAndy Adamson 5287fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5288fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5289fc01cea9SAndy Adamson if (!status) 5290fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 5291fc01cea9SAndy Adamson return status; 5292fc01cea9SAndy Adamson } 5293fc01cea9SAndy Adamson 5294fc01cea9SAndy Adamson /* 52952050f0ccSAndy Adamson * a GET_LEASE_TIME request 52962050f0ccSAndy Adamson */ 52972050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 52982050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 52992050f0ccSAndy Adamson { 53002050f0ccSAndy Adamson struct xdr_stream xdr; 53012050f0ccSAndy Adamson struct compound_hdr hdr; 53022050f0ccSAndy Adamson int status; 53032050f0ccSAndy Adamson 53042050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53052050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 53062050f0ccSAndy Adamson if (!status) 53072050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 53082050f0ccSAndy Adamson if (!status) 53092050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 53102050f0ccSAndy Adamson if (!status) 53112050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 53122050f0ccSAndy Adamson return status; 53132050f0ccSAndy Adamson } 531499fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 531599fe60d0SBenny Halevy 53160dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 53171da177e4SLinus Torvalds { 53181da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 53191da177e4SLinus Torvalds uint32_t len; 53201da177e4SLinus Torvalds 53211da177e4SLinus Torvalds if (!*p++) { 53221da177e4SLinus Torvalds if (!*p) 53231da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 53241da177e4SLinus Torvalds entry->eof = 1; 53251da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 53261da177e4SLinus Torvalds } 53271da177e4SLinus Torvalds 53281da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 53291da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 53301da177e4SLinus Torvalds entry->len = ntohl(*p++); 53311da177e4SLinus Torvalds entry->name = (const char *) p; 53321da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 53331da177e4SLinus Torvalds 53341da177e4SLinus Torvalds /* 53351da177e4SLinus Torvalds * In case the server doesn't return an inode number, 53361da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 53371da177e4SLinus Torvalds * since glibc seems to choke on it...) 53381da177e4SLinus Torvalds */ 53391da177e4SLinus Torvalds entry->ino = 1; 53401da177e4SLinus Torvalds 53411da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 53421da177e4SLinus Torvalds if (len-- > 0) { 53431da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 53441da177e4SLinus Torvalds if (len-- > 0) { 53451da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 53461da177e4SLinus Torvalds p += len; 53471da177e4SLinus Torvalds } 53481da177e4SLinus Torvalds } 53491da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 53501da177e4SLinus Torvalds if (len > 0) { 535197d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 535297d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 535397d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 535497d312d0SManoj Naik p++; 535597d312d0SManoj Naik len--; 535697d312d0SManoj Naik } 53571da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 53581da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 53591da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 53601da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 53611da177e4SLinus Torvalds p += len; 53621da177e4SLinus Torvalds } 53631da177e4SLinus Torvalds 53641da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 53651da177e4SLinus Torvalds return p; 53661da177e4SLinus Torvalds } 53671da177e4SLinus Torvalds 53681da177e4SLinus Torvalds /* 53691da177e4SLinus Torvalds * We need to translate between nfs status return values and 53701da177e4SLinus Torvalds * the local errno values which may not be the same. 53711da177e4SLinus Torvalds */ 53721da177e4SLinus Torvalds static struct { 53731da177e4SLinus Torvalds int stat; 53741da177e4SLinus Torvalds int errno; 53751da177e4SLinus Torvalds } nfs_errtbl[] = { 53761da177e4SLinus Torvalds { NFS4_OK, 0 }, 5377856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5378856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5379856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5380856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5381856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5382856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5383856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5384856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5385856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5386856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5387856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5388856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5389856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5390856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5391856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5392856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5393856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5394856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5395856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5396856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5397856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5398856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5399856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5400856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5401856dff3dSBenny Halevy { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, 5402856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5403856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5404856dff3dSBenny Halevy { NFS4ERR_RESOURCE, -EREMOTEIO }, 5405856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5406856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5407856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5408856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 54091da177e4SLinus Torvalds * to be handled by a 54101da177e4SLinus Torvalds * middle-layer. 54111da177e4SLinus Torvalds */ 5412856dff3dSBenny Halevy { -1, -EIO } 54131da177e4SLinus Torvalds }; 54141da177e4SLinus Torvalds 54151da177e4SLinus Torvalds /* 54161da177e4SLinus Torvalds * Convert an NFS error code to a local one. 54171da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 54181da177e4SLinus Torvalds */ 54191da177e4SLinus Torvalds static int 54200a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 54211da177e4SLinus Torvalds { 54221da177e4SLinus Torvalds int i; 54231da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 54241da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 54251da177e4SLinus Torvalds return nfs_errtbl[i].errno; 54261da177e4SLinus Torvalds } 54271da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 54281da177e4SLinus Torvalds /* The server is looney tunes. */ 5429856dff3dSBenny Halevy return -ESERVERFAULT; 54301da177e4SLinus Torvalds } 54311da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 54321da177e4SLinus Torvalds * handle it. 54331da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 54341da177e4SLinus Torvalds * not conflict with native Linux error codes. 54351da177e4SLinus Torvalds */ 5436856dff3dSBenny Halevy return -stat; 54371da177e4SLinus Torvalds } 54381da177e4SLinus Torvalds 54391da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 54401da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 54411da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 54421da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 54431da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 54442bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 54452bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5446cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5447cc0175c1SChuck Lever .p_name = #proc, \ 54481da177e4SLinus Torvalds } 54491da177e4SLinus Torvalds 54501da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 54511da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 54521da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 54531da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 54541da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 54551da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 54561da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 54571da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 54581da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 54591da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 54601da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 54611da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 54621da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 54631da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 54641da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 54651da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 54661da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 54671da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 54681da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 54691da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 54701da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 54711da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 54721da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 54731da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 54741da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 54751da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 54761da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 54771da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 54781da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 54791da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 54801da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 54811da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5482029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 548323ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5484683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 548599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 548699fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5487fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 54880f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 5489fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 54902050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 549199fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 54921da177e4SLinus Torvalds }; 54931da177e4SLinus Torvalds 54941da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 54951da177e4SLinus Torvalds .number = 4, 5496e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 54971da177e4SLinus Torvalds .procs = nfs4_procedures 54981da177e4SLinus Torvalds }; 54991da177e4SLinus Torvalds 55001da177e4SLinus Torvalds /* 55011da177e4SLinus Torvalds * Local variables: 55021da177e4SLinus Torvalds * c-basic-offset: 8 55031da177e4SLinus Torvalds * End: 55041da177e4SLinus Torvalds */ 5505