11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * fs/nfs/nfs4xdr.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side XDR for NFSv4. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2002 The Regents of the University of Michigan. 71da177e4SLinus Torvalds * All rights reserved. 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Kendrick Smith <kmsmith@umich.edu> 101da177e4SLinus Torvalds * Andy Adamson <andros@umich.edu> 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4SLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4SLinus Torvalds * are met: 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * 1. Redistributions of source code must retain the above copyright 171da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer. 181da177e4SLinus Torvalds * 2. Redistributions in binary form must reproduce the above copyright 191da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer in the 201da177e4SLinus Torvalds * documentation and/or other materials provided with the distribution. 211da177e4SLinus Torvalds * 3. Neither the name of the University nor the names of its 221da177e4SLinus Torvalds * contributors may be used to endorse or promote products derived 231da177e4SLinus Torvalds * from this software without specific prior written permission. 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 261da177e4SLinus Torvalds * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 271da177e4SLinus Torvalds * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 281da177e4SLinus Torvalds * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291da177e4SLinus Torvalds * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 301da177e4SLinus Torvalds * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 311da177e4SLinus Torvalds * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 321da177e4SLinus Torvalds * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 331da177e4SLinus Torvalds * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 341da177e4SLinus Torvalds * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 351da177e4SLinus Torvalds * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361da177e4SLinus Torvalds */ 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #include <linux/param.h> 391da177e4SLinus Torvalds #include <linux/time.h> 401da177e4SLinus Torvalds #include <linux/mm.h> 411da177e4SLinus Torvalds #include <linux/slab.h> 421da177e4SLinus Torvalds #include <linux/utsname.h> 431da177e4SLinus Torvalds #include <linux/errno.h> 441da177e4SLinus Torvalds #include <linux/string.h> 451da177e4SLinus Torvalds #include <linux/in.h> 461da177e4SLinus Torvalds #include <linux/pagemap.h> 471da177e4SLinus Torvalds #include <linux/proc_fs.h> 481da177e4SLinus Torvalds #include <linux/kdev_t.h> 491da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 501da177e4SLinus Torvalds #include <linux/nfs.h> 511da177e4SLinus Torvalds #include <linux/nfs4.h> 521da177e4SLinus Torvalds #include <linux/nfs_fs.h> 531da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 544ce79717STrond Myklebust #include "nfs4_fs.h" 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 591da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 601da177e4SLinus Torvalds 610a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 641da177e4SLinus Torvalds #ifdef DEBUG 651da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 661da177e4SLinus Torvalds #else 671da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 681da177e4SLinus Torvalds #endif 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* lock,open owner id: 719f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 721da177e4SLinus Torvalds */ 739f958ab8STrond Myklebust #define open_owner_id_maxsz (1 + 4) 749f958ab8STrond Myklebust #define lock_owner_id_maxsz (1 + 4) 759104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 761da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 771da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 781da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 791da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 809104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 819104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 829104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 839104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 841da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 851da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 861da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 871da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 881da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 891da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 901da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 911da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9296928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9396928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 941da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 951da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 96bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 97bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 9896928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 9996928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 100bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10196928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10296928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10396928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1049104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1059104a55dSTrond Myklebust 1 + 2 + 1 + \ 1069104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1079104a55dSTrond Myklebust nfs4_group_maxsz + \ 1089104a55dSTrond Myklebust 4 + 4) 1091da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1101da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11156ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11256ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1132f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1141da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1151da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1161da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1171da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1181da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 119cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 120cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 121cc38bac3SChuck Lever 1 /* sc_prog */ + \ 122cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 123cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 124cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1251da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1261da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1271da177e4SLinus Torvalds 2 + \ 1281da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1291da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1301da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1311da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1321da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1331da177e4SLinus Torvalds (op_decode_hdr_maxsz) 134e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 135e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1362cebf828STrond Myklebust #define encode_share_access_maxsz \ 1372cebf828STrond Myklebust (2) 1389104a55dSTrond Myklebust #define encode_createmode_maxsz (1 + encode_attrs_maxsz) 1392cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1402cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1412cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1422cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1432cebf828STrond Myklebust open_owner_id_maxsz + \ 1442cebf828STrond Myklebust encode_opentype_maxsz + \ 1452cebf828STrond Myklebust encode_claim_null_maxsz) 1462cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1479104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1482cebf828STrond Myklebust decode_ace_maxsz) 1492cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1502cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1519104a55dSTrond Myklebust decode_stateid_maxsz + \ 1522cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1532cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1542cebf828STrond Myklebust decode_delegation_maxsz) 1559104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1569104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1579104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1589104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1599104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1609104a55dSTrond Myklebust decode_stateid_maxsz) 1619104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1629104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1639104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1649104a55dSTrond Myklebust encode_share_access_maxsz) 1659104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1669104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1679104a55dSTrond Myklebust decode_stateid_maxsz) 1689104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1699104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1709104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1719104a55dSTrond Myklebust decode_stateid_maxsz) 1729104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1739104a55dSTrond Myklebust encode_stateid_maxsz + \ 1749104a55dSTrond Myklebust encode_attrs_maxsz) 1759104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1769104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1779104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1789104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1799104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1809104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1819104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1829104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1839104a55dSTrond Myklebust decode_verifier_maxsz) 1849104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1859104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1869104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1879104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1889104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1909104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1919104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1929104a55dSTrond Myklebust decode_verifier_maxsz) 1931da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1941da177e4SLinus Torvalds nfs4_name_maxsz) 1956ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 1966ce18391SBenny Halevy decode_change_info_maxsz) 1971da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1981da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1996ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2006ce18391SBenny Halevy decode_change_info_maxsz + \ 2016ce18391SBenny Halevy decode_change_info_maxsz) 2021da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2031da177e4SLinus Torvalds nfs4_name_maxsz) 2046ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 2059104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2069104a55dSTrond Myklebust 7 + \ 2079104a55dSTrond Myklebust 1 + encode_stateid_maxsz + 8) 2089104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2099104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2109104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2119104a55dSTrond Myklebust decode_lock_denied_maxsz) 2129104a55dSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) 2139104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2149104a55dSTrond Myklebust decode_lock_denied_maxsz) 2159104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2169104a55dSTrond Myklebust encode_stateid_maxsz + \ 2179104a55dSTrond Myklebust 4) 2189104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2199104a55dSTrond Myklebust decode_stateid_maxsz) 2209104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2219104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2221da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2231da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 22494a6d753SChuck Lever 1 + \ 22596928206SJ. Bruce Fields nfs4_fattr_maxsz) 2261da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2271da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2289104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2299104a55dSTrond Myklebust encode_attrs_maxsz) 2302cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2312cebf828STrond Myklebust decode_change_info_maxsz + \ 2322cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2339104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2349104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2351da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2361da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2379104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2389104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2399104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2409104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2419104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2429104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 243e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 244e6889620STrond Myklebust (encode_getattr_maxsz) 245e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 246e6889620STrond Myklebust (0) 2479b7b9fccSAndy Adamson 2489b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 249fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 250fc931582SAndy Adamson 25199fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 25299fe60d0SBenny Halevy encode_verifier_maxsz + \ 25399fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 25499fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 25599fe60d0SBenny Halevy 1 /* flags */ + \ 25699fe60d0SBenny Halevy 1 /* spa_how */ + \ 25799fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 25899fe60d0SBenny Halevy 1 /* zero implemetation id array */) 25999fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 26099fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 26199fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 26299fe60d0SBenny Halevy 1 /* eir_flags */ + \ 26399fe60d0SBenny Halevy 1 /* spr_how */ + \ 26499fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 26599fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 26699fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 26799fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 26899fe60d0SBenny Halevy /* eir_server_scope<> */ \ 26999fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27099fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 27199fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 272fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 273fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 274fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 275fc931582SAndy Adamson 1 /* ca_rdma_ird */) 276fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 277fc931582SAndy Adamson 2 /* csa_clientid */ + \ 278fc931582SAndy Adamson 1 /* csa_sequence */ + \ 279fc931582SAndy Adamson 1 /* csa_flags */ + \ 280fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 281fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 282fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 283fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 284fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 285fc931582SAndy Adamson 1 /* stamp */ + \ 286fc931582SAndy Adamson 1 /* machinename.len */ + \ 287fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 288fc931582SAndy Adamson 1 /* uid */ + \ 289fc931582SAndy Adamson 1 /* gid */ + \ 290fc931582SAndy Adamson 1 /* gids.len (0) */) 291fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 292fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 293fc931582SAndy Adamson 1 /* csr_sequence */ + \ 294fc931582SAndy Adamson 1 /* csr_flags */ + \ 295fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 296fc931582SAndy Adamson decode_channel_attrs_maxsz) 2970f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 2980f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 299fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 300fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 301fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 302fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 3039b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3049b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3059b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3069b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3079b7b9fccSAndy Adamson 3081da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3091da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3101da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3121da177e4SLinus Torvalds encode_putfh_maxsz + \ 3139104a55dSTrond Myklebust encode_read_maxsz) 3141da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3159b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3161da177e4SLinus Torvalds decode_putfh_maxsz + \ 3179104a55dSTrond Myklebust decode_read_maxsz) 3181da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3199b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3201da177e4SLinus Torvalds encode_putfh_maxsz + \ 3219104a55dSTrond Myklebust encode_readlink_maxsz) 3221da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3241da177e4SLinus Torvalds decode_putfh_maxsz + \ 3259104a55dSTrond Myklebust decode_readlink_maxsz) 3261da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3279b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3281da177e4SLinus Torvalds encode_putfh_maxsz + \ 3299104a55dSTrond Myklebust encode_readdir_maxsz) 3301da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3319b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3321da177e4SLinus Torvalds decode_putfh_maxsz + \ 3339104a55dSTrond Myklebust decode_readdir_maxsz) 3341da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3359b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3361da177e4SLinus Torvalds encode_putfh_maxsz + \ 3379104a55dSTrond Myklebust encode_write_maxsz + \ 3384f9838c7STrond Myklebust encode_getattr_maxsz) 3391da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3409b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3411da177e4SLinus Torvalds decode_putfh_maxsz + \ 3429104a55dSTrond Myklebust decode_write_maxsz + \ 3434f9838c7STrond Myklebust decode_getattr_maxsz) 3441da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3461da177e4SLinus Torvalds encode_putfh_maxsz + \ 3479104a55dSTrond Myklebust encode_commit_maxsz + \ 3484f9838c7STrond Myklebust encode_getattr_maxsz) 3491da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3511da177e4SLinus Torvalds decode_putfh_maxsz + \ 3529104a55dSTrond Myklebust decode_commit_maxsz + \ 3534f9838c7STrond Myklebust decode_getattr_maxsz) 3541da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3561da177e4SLinus Torvalds encode_putfh_maxsz + \ 3572cebf828STrond Myklebust encode_savefh_maxsz + \ 3582cebf828STrond Myklebust encode_open_maxsz + \ 3592cebf828STrond Myklebust encode_getfh_maxsz + \ 3601da177e4SLinus Torvalds encode_getattr_maxsz + \ 3612cebf828STrond Myklebust encode_restorefh_maxsz + \ 3622cebf828STrond Myklebust encode_getattr_maxsz) 3631da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 3649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3651da177e4SLinus Torvalds decode_putfh_maxsz + \ 3662cebf828STrond Myklebust decode_savefh_maxsz + \ 3672cebf828STrond Myklebust decode_open_maxsz + \ 3682cebf828STrond Myklebust decode_getfh_maxsz + \ 3691da177e4SLinus Torvalds decode_getattr_maxsz + \ 3702cebf828STrond Myklebust decode_restorefh_maxsz + \ 3712cebf828STrond Myklebust decode_getattr_maxsz) 3721da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3731da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3741da177e4SLinus Torvalds encode_putfh_maxsz + \ 3759104a55dSTrond Myklebust encode_open_confirm_maxsz) 3769104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3779104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3781da177e4SLinus Torvalds decode_putfh_maxsz + \ 3799104a55dSTrond Myklebust decode_open_confirm_maxsz) 3801da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3819b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3821da177e4SLinus Torvalds encode_putfh_maxsz + \ 3832cebf828STrond Myklebust encode_open_maxsz + \ 3842cebf828STrond Myklebust encode_getattr_maxsz) 3851da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3869b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3871da177e4SLinus Torvalds decode_putfh_maxsz + \ 3882cebf828STrond Myklebust decode_open_maxsz + \ 3892cebf828STrond Myklebust decode_getattr_maxsz) 3901da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3911da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3931da177e4SLinus Torvalds encode_putfh_maxsz + \ 3949104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 395516a6af6STrond Myklebust encode_getattr_maxsz) 3961da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 3971da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3989b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3991da177e4SLinus Torvalds decode_putfh_maxsz + \ 4009104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 401516a6af6STrond Myklebust decode_getattr_maxsz) 4021da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4041da177e4SLinus Torvalds encode_putfh_maxsz + \ 4059104a55dSTrond Myklebust encode_close_maxsz + \ 406516a6af6STrond Myklebust encode_getattr_maxsz) 4071da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4091da177e4SLinus Torvalds decode_putfh_maxsz + \ 4109104a55dSTrond Myklebust decode_close_maxsz + \ 411516a6af6STrond Myklebust decode_getattr_maxsz) 4121da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4141da177e4SLinus Torvalds encode_putfh_maxsz + \ 4159104a55dSTrond Myklebust encode_setattr_maxsz + \ 4161da177e4SLinus Torvalds encode_getattr_maxsz) 4171da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4191da177e4SLinus Torvalds decode_putfh_maxsz + \ 4209104a55dSTrond Myklebust decode_setattr_maxsz + \ 4219104a55dSTrond Myklebust decode_getattr_maxsz) 4221da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4241da177e4SLinus Torvalds encode_putfh_maxsz + \ 4251da177e4SLinus Torvalds encode_fsinfo_maxsz) 4261da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4281da177e4SLinus Torvalds decode_putfh_maxsz + \ 4291da177e4SLinus Torvalds decode_fsinfo_maxsz) 4301da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4311da177e4SLinus Torvalds encode_renew_maxsz) 4321da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4331da177e4SLinus Torvalds decode_renew_maxsz) 4341da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4351da177e4SLinus Torvalds encode_setclientid_maxsz) 4361da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4371da177e4SLinus Torvalds decode_setclientid_maxsz) 4381da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4391da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4401da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4411da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4421da177e4SLinus Torvalds encode_fsinfo_maxsz) 4431da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4441da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4451da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4461da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4471da177e4SLinus Torvalds decode_fsinfo_maxsz) 4481da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4499b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4501da177e4SLinus Torvalds encode_putfh_maxsz + \ 4519104a55dSTrond Myklebust encode_lock_maxsz) 4521da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4541da177e4SLinus Torvalds decode_putfh_maxsz + \ 4559104a55dSTrond Myklebust decode_lock_maxsz) 4561da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4579b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4581da177e4SLinus Torvalds encode_putfh_maxsz + \ 4599104a55dSTrond Myklebust encode_lockt_maxsz) 4609104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 4619b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4629104a55dSTrond Myklebust decode_putfh_maxsz + \ 4639104a55dSTrond Myklebust decode_lockt_maxsz) 4641da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 4659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4661da177e4SLinus Torvalds encode_putfh_maxsz + \ 4679104a55dSTrond Myklebust encode_locku_maxsz) 4681da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 4699b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4701da177e4SLinus Torvalds decode_putfh_maxsz + \ 4719104a55dSTrond Myklebust decode_locku_maxsz) 4721da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 4739b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4741da177e4SLinus Torvalds encode_putfh_maxsz + \ 47576b32999STrond Myklebust encode_access_maxsz + \ 47676b32999STrond Myklebust encode_getattr_maxsz) 4771da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 4789b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4791da177e4SLinus Torvalds decode_putfh_maxsz + \ 48076b32999STrond Myklebust decode_access_maxsz + \ 48176b32999STrond Myklebust decode_getattr_maxsz) 4821da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 4839b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4841da177e4SLinus Torvalds encode_putfh_maxsz + \ 4851da177e4SLinus Torvalds encode_getattr_maxsz) 4861da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 4879b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4881da177e4SLinus Torvalds decode_putfh_maxsz + \ 4891da177e4SLinus Torvalds decode_getattr_maxsz) 4901da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 4919b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4921da177e4SLinus Torvalds encode_putfh_maxsz + \ 4931da177e4SLinus Torvalds encode_lookup_maxsz + \ 4941da177e4SLinus Torvalds encode_getattr_maxsz + \ 4951da177e4SLinus Torvalds encode_getfh_maxsz) 4961da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 4979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4981da177e4SLinus Torvalds decode_putfh_maxsz + \ 499e6889620STrond Myklebust decode_lookup_maxsz + \ 5001da177e4SLinus Torvalds decode_getattr_maxsz + \ 5011da177e4SLinus Torvalds decode_getfh_maxsz) 5021da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5039b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5041da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5051da177e4SLinus Torvalds encode_getattr_maxsz + \ 5061da177e4SLinus Torvalds encode_getfh_maxsz) 5071da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5091da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5101da177e4SLinus Torvalds decode_getattr_maxsz + \ 5111da177e4SLinus Torvalds decode_getfh_maxsz) 5121da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5141da177e4SLinus Torvalds encode_putfh_maxsz + \ 51516e42959STrond Myklebust encode_remove_maxsz + \ 51616e42959STrond Myklebust encode_getattr_maxsz) 5171da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5191da177e4SLinus Torvalds decode_putfh_maxsz + \ 5206ce18391SBenny Halevy decode_remove_maxsz + \ 52116e42959STrond Myklebust decode_getattr_maxsz) 5221da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5241da177e4SLinus Torvalds encode_putfh_maxsz + \ 5251da177e4SLinus Torvalds encode_savefh_maxsz + \ 5261da177e4SLinus Torvalds encode_putfh_maxsz + \ 5276caf2c82STrond Myklebust encode_rename_maxsz + \ 5286caf2c82STrond Myklebust encode_getattr_maxsz + \ 5296caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5306caf2c82STrond Myklebust encode_getattr_maxsz) 5311da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5331da177e4SLinus Torvalds decode_putfh_maxsz + \ 5341da177e4SLinus Torvalds decode_savefh_maxsz + \ 5351da177e4SLinus Torvalds decode_putfh_maxsz + \ 5366caf2c82STrond Myklebust decode_rename_maxsz + \ 5376caf2c82STrond Myklebust decode_getattr_maxsz + \ 5386caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5396caf2c82STrond Myklebust decode_getattr_maxsz) 5401da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5419b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5421da177e4SLinus Torvalds encode_putfh_maxsz + \ 5431da177e4SLinus Torvalds encode_savefh_maxsz + \ 5441da177e4SLinus Torvalds encode_putfh_maxsz + \ 54591ba2eeeSTrond Myklebust encode_link_maxsz + \ 54691ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 54791ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 54891ba2eeeSTrond Myklebust decode_getattr_maxsz) 5491da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5511da177e4SLinus Torvalds decode_putfh_maxsz + \ 5521da177e4SLinus Torvalds decode_savefh_maxsz + \ 5531da177e4SLinus Torvalds decode_putfh_maxsz + \ 55491ba2eeeSTrond Myklebust decode_link_maxsz + \ 55591ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 55691ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 55791ba2eeeSTrond Myklebust decode_getattr_maxsz) 5581da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 5599b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5601da177e4SLinus Torvalds encode_putfh_maxsz + \ 5611da177e4SLinus Torvalds encode_symlink_maxsz + \ 5621da177e4SLinus Torvalds encode_getattr_maxsz + \ 5631da177e4SLinus Torvalds encode_getfh_maxsz) 5641da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 5659b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5661da177e4SLinus Torvalds decode_putfh_maxsz + \ 5671da177e4SLinus Torvalds decode_symlink_maxsz + \ 5681da177e4SLinus Torvalds decode_getattr_maxsz + \ 5691da177e4SLinus Torvalds decode_getfh_maxsz) 5701da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 5719b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5721da177e4SLinus Torvalds encode_putfh_maxsz + \ 57356ae19f3STrond Myklebust encode_savefh_maxsz + \ 5741da177e4SLinus Torvalds encode_create_maxsz + \ 57556ae19f3STrond Myklebust encode_getfh_maxsz + \ 5761da177e4SLinus Torvalds encode_getattr_maxsz + \ 57756ae19f3STrond Myklebust encode_restorefh_maxsz + \ 57856ae19f3STrond Myklebust encode_getattr_maxsz) 5791da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 5809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5811da177e4SLinus Torvalds decode_putfh_maxsz + \ 58256ae19f3STrond Myklebust decode_savefh_maxsz + \ 5831da177e4SLinus Torvalds decode_create_maxsz + \ 58456ae19f3STrond Myklebust decode_getfh_maxsz + \ 5851da177e4SLinus Torvalds decode_getattr_maxsz + \ 58656ae19f3STrond Myklebust decode_restorefh_maxsz + \ 58756ae19f3STrond Myklebust decode_getattr_maxsz) 5881da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 5899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5901da177e4SLinus Torvalds encode_putfh_maxsz + \ 5911da177e4SLinus Torvalds encode_getattr_maxsz) 5921da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 5939b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5941da177e4SLinus Torvalds decode_putfh_maxsz + \ 5951da177e4SLinus Torvalds decode_getattr_maxsz) 5961da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 5979b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5981da177e4SLinus Torvalds encode_putfh_maxsz + \ 5999104a55dSTrond Myklebust encode_statfs_maxsz) 6001da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6019b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6021da177e4SLinus Torvalds decode_putfh_maxsz + \ 6039104a55dSTrond Myklebust decode_statfs_maxsz) 6041da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6059b7b9fccSAndy Adamson encode_sequence_maxsz + \ 606ab91f264STrond Myklebust encode_putfh_maxsz + \ 6071da177e4SLinus Torvalds encode_getattr_maxsz) 6081da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6099b7b9fccSAndy Adamson decode_sequence_maxsz + \ 610ab91f264STrond Myklebust decode_putfh_maxsz + \ 6111da177e4SLinus Torvalds decode_getattr_maxsz) 6121da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6141da177e4SLinus Torvalds encode_putfh_maxsz + \ 615fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 616fa178f29STrond Myklebust encode_getattr_maxsz) 6171da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 619fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 620fa178f29STrond Myklebust decode_getattr_maxsz) 621029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 623029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6249104a55dSTrond Myklebust encode_getacl_maxsz) 625029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6269b7b9fccSAndy Adamson decode_sequence_maxsz + \ 627029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6289104a55dSTrond Myklebust decode_getacl_maxsz) 62923ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6309b7b9fccSAndy Adamson encode_sequence_maxsz + \ 63123ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6329104a55dSTrond Myklebust encode_setacl_maxsz) 63323ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 63523ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6369104a55dSTrond Myklebust decode_setacl_maxsz) 637683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 638683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6399b7b9fccSAndy Adamson encode_sequence_maxsz + \ 640683b57b4STrond Myklebust encode_putfh_maxsz + \ 641e6889620STrond Myklebust encode_lookup_maxsz + \ 642e6889620STrond Myklebust encode_fs_locations_maxsz) 643683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 644683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6459b7b9fccSAndy Adamson decode_sequence_maxsz + \ 646683b57b4STrond Myklebust decode_putfh_maxsz + \ 647e6889620STrond Myklebust decode_lookup_maxsz + \ 648e6889620STrond Myklebust decode_fs_locations_maxsz) 64999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 65099fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 65199fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 65299fe60d0SBenny Halevy encode_exchange_id_maxsz) 65399fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 65499fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 65599fe60d0SBenny Halevy decode_exchange_id_maxsz) 656fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 657fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 658fc931582SAndy Adamson encode_create_session_maxsz) 659fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 660fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 661fc931582SAndy Adamson decode_create_session_maxsz) 6620f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 6630f3e66c6SAndy Adamson encode_destroy_session_maxsz) 6640f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 6650f3e66c6SAndy Adamson decode_destroy_session_maxsz) 666fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 667fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 668fc01cea9SAndy Adamson encode_sequence_maxsz) 669fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 670fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 671fc01cea9SAndy Adamson decode_sequence_maxsz) 6722050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 6732050f0ccSAndy Adamson encode_sequence_maxsz + \ 6742050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 6752050f0ccSAndy Adamson encode_fsinfo_maxsz) 6762050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 6772050f0ccSAndy Adamson decode_sequence_maxsz + \ 6782050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 6792050f0ccSAndy Adamson decode_fsinfo_maxsz) 68099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 6811da177e4SLinus Torvalds 682bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 683bca79478STrond Myklebust [NF4BAD] = 0, 684bca79478STrond Myklebust [NF4REG] = S_IFREG, 685bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 686bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 687bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 688bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 689bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 690bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 691bca79478STrond Myklebust [NF4ATTRDIR] = 0, 692bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 6931da177e4SLinus Torvalds }; 6941da177e4SLinus Torvalds 6951da177e4SLinus Torvalds struct compound_hdr { 6961da177e4SLinus Torvalds int32_t status; 6971da177e4SLinus Torvalds uint32_t nops; 698d017931cSAndy Adamson __be32 * nops_p; 6991da177e4SLinus Torvalds uint32_t taglen; 7001da177e4SLinus Torvalds char * tag; 7010c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 70266cc0429SBenny Halevy u32 minorversion; 7031da177e4SLinus Torvalds }; 7041da177e4SLinus Torvalds 70513c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 70613c65ce9SBenny Halevy { 70713c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 70813c65ce9SBenny Halevy BUG_ON(!p); 70913c65ce9SBenny Halevy return p; 71013c65ce9SBenny Halevy } 7111da177e4SLinus Torvalds 7121da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7131da177e4SLinus Torvalds { 7148687b63aSAl Viro __be32 *p; 7151da177e4SLinus Torvalds 7161da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7171da177e4SLinus Torvalds BUG_ON(p == NULL); 7181da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7191da177e4SLinus Torvalds } 7201da177e4SLinus Torvalds 7210c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7220c4e8c18SBenny Halevy struct rpc_rqst *req, 7230c4e8c18SBenny Halevy struct compound_hdr *hdr) 7241da177e4SLinus Torvalds { 7258687b63aSAl Viro __be32 *p; 7260c4e8c18SBenny Halevy struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 7270c4e8c18SBenny Halevy 7280c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7290c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7300c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7310c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7321da177e4SLinus Torvalds 7331da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7341da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 73513c65ce9SBenny Halevy p = reserve_space(xdr, 12 + hdr->taglen); 736e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->taglen); 73793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, hdr->tag, hdr->taglen); 738e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 739d017931cSAndy Adamson hdr->nops_p = p; 74034558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 741d017931cSAndy Adamson } 742d017931cSAndy Adamson 743d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 744d017931cSAndy Adamson { 745fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 746d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 7471da177e4SLinus Torvalds } 7481da177e4SLinus Torvalds 7491da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 7501da177e4SLinus Torvalds { 7518687b63aSAl Viro __be32 *p; 7521da177e4SLinus Torvalds 7531da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 7541da177e4SLinus Torvalds BUG_ON(p == NULL); 7551da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 7561da177e4SLinus Torvalds } 7571da177e4SLinus Torvalds 758cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 7591da177e4SLinus Torvalds { 7601da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 7611da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 7621da177e4SLinus Torvalds int owner_namelen = 0; 7631da177e4SLinus Torvalds int owner_grouplen = 0; 7648687b63aSAl Viro __be32 *p; 7658687b63aSAl Viro __be32 *q; 7661da177e4SLinus Torvalds int len; 7671da177e4SLinus Torvalds uint32_t bmval0 = 0; 7681da177e4SLinus Torvalds uint32_t bmval1 = 0; 7691da177e4SLinus Torvalds 7701da177e4SLinus Torvalds /* 7711da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 7721da177e4SLinus Torvalds * In the worst-case, this would be 7731da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 7741da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 77523ec6965SJ. Bruce Fields * such as owner/group. 7761da177e4SLinus Torvalds */ 7771da177e4SLinus Torvalds len = 16; 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds /* Sigh */ 7801da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 7811da177e4SLinus Torvalds len += 8; 7821da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 7831da177e4SLinus Torvalds len += 4; 7841da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 7857539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 7861da177e4SLinus Torvalds if (owner_namelen < 0) { 787fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 7881da177e4SLinus Torvalds iap->ia_uid); 7891da177e4SLinus Torvalds /* XXX */ 7901da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 7911da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 7921da177e4SLinus Torvalds /* goto out; */ 7931da177e4SLinus Torvalds } 7941da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 7951da177e4SLinus Torvalds } 7961da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 7977539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 7981da177e4SLinus Torvalds if (owner_grouplen < 0) { 799fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8001da177e4SLinus Torvalds iap->ia_gid); 8011da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8021da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8031da177e4SLinus Torvalds /* goto out; */ 8041da177e4SLinus Torvalds } 8051da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8061da177e4SLinus Torvalds } 8071da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8081da177e4SLinus Torvalds len += 16; 8091da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8101da177e4SLinus Torvalds len += 4; 8111da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8121da177e4SLinus Torvalds len += 16; 8131da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8141da177e4SLinus Torvalds len += 4; 81513c65ce9SBenny Halevy p = reserve_space(xdr, len); 8161da177e4SLinus Torvalds 8171da177e4SLinus Torvalds /* 8181da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8191da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8201da177e4SLinus Torvalds */ 821e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 8221da177e4SLinus Torvalds q = p; 8231da177e4SLinus Torvalds p += 3; 8241da177e4SLinus Torvalds 8251da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8261da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 827b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 8281da177e4SLinus Torvalds } 8291da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8301da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 831e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 8321da177e4SLinus Torvalds } 8331da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8341da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 835e75bc1c8SBenny Halevy *p++ = cpu_to_be32(owner_namelen); 83693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, owner_name, owner_namelen); 8371da177e4SLinus Torvalds } 8381da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8391da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 840e75bc1c8SBenny Halevy *p++ = cpu_to_be32(owner_grouplen); 84193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, owner_group, owner_grouplen); 8421da177e4SLinus Torvalds } 8431da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 8441da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 845e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 846e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 847e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 848e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8491da177e4SLinus Torvalds } 8501da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 8511da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 852e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8531da177e4SLinus Torvalds } 8541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 8551da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 856e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 857e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 858e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 859e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8601da177e4SLinus Torvalds } 8611da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 8621da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 863e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8641da177e4SLinus Torvalds } 8651da177e4SLinus Torvalds 8661da177e4SLinus Torvalds /* 8671da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 8681da177e4SLinus Torvalds */ 8691da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 870fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 8711da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 8721da177e4SLinus Torvalds BUG(); 8731da177e4SLinus Torvalds } 8741da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 8751da177e4SLinus Torvalds *q++ = htonl(bmval0); 8761da177e4SLinus Torvalds *q++ = htonl(bmval1); 87734558513SBenny Halevy *q = htonl(len); 8781da177e4SLinus Torvalds 8791da177e4SLinus Torvalds /* out: */ 8801da177e4SLinus Torvalds } 8811da177e4SLinus Torvalds 882cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 8831da177e4SLinus Torvalds { 8848687b63aSAl Viro __be32 *p; 8851da177e4SLinus Torvalds 88613c65ce9SBenny Halevy p = reserve_space(xdr, 8); 887e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 88834558513SBenny Halevy *p = cpu_to_be32(access); 889d017931cSAndy Adamson hdr->nops++; 890dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 8911da177e4SLinus Torvalds } 8921da177e4SLinus Torvalds 893cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 8941da177e4SLinus Torvalds { 8958687b63aSAl Viro __be32 *p; 8961da177e4SLinus Torvalds 89713c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 898e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 899e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 90034558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 901d017931cSAndy Adamson hdr->nops++; 902dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9031da177e4SLinus Torvalds } 9041da177e4SLinus Torvalds 905cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9061da177e4SLinus Torvalds { 9078687b63aSAl Viro __be32 *p; 9081da177e4SLinus Torvalds 90913c65ce9SBenny Halevy p = reserve_space(xdr, 16); 910e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 911b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 91234558513SBenny Halevy *p = cpu_to_be32(args->count); 913d017931cSAndy Adamson hdr->nops++; 914dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9151da177e4SLinus Torvalds } 9161da177e4SLinus Torvalds 917cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9181da177e4SLinus Torvalds { 9198687b63aSAl Viro __be32 *p; 9201da177e4SLinus Torvalds 92113c65ce9SBenny Halevy p = reserve_space(xdr, 8); 922e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 92334558513SBenny Halevy *p = cpu_to_be32(create->ftype); 9241da177e4SLinus Torvalds 9251da177e4SLinus Torvalds switch (create->ftype) { 9261da177e4SLinus Torvalds case NF4LNK: 92713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 92834558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 92994a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9301da177e4SLinus Torvalds break; 9311da177e4SLinus Torvalds 9321da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 93313c65ce9SBenny Halevy p = reserve_space(xdr, 8); 934e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 93534558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 9361da177e4SLinus Torvalds break; 9371da177e4SLinus Torvalds 9381da177e4SLinus Torvalds default: 9391da177e4SLinus Torvalds break; 9401da177e4SLinus Torvalds } 9411da177e4SLinus Torvalds 94213c65ce9SBenny Halevy p = reserve_space(xdr, 4 + create->name->len); 943e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->name->len); 94434558513SBenny Halevy xdr_encode_opaque_fixed(p, create->name->name, create->name->len); 945d017931cSAndy Adamson hdr->nops++; 946dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 9471da177e4SLinus Torvalds 948cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 9491da177e4SLinus Torvalds } 9501da177e4SLinus Torvalds 951cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 9521da177e4SLinus Torvalds { 9538687b63aSAl Viro __be32 *p; 9541da177e4SLinus Torvalds 95513c65ce9SBenny Halevy p = reserve_space(xdr, 12); 956e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 957e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 95834558513SBenny Halevy *p = cpu_to_be32(bitmap); 959d017931cSAndy Adamson hdr->nops++; 960dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9611da177e4SLinus Torvalds } 9621da177e4SLinus Torvalds 963cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 9641da177e4SLinus Torvalds { 9658687b63aSAl Viro __be32 *p; 9661da177e4SLinus Torvalds 96713c65ce9SBenny Halevy p = reserve_space(xdr, 16); 968e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 969e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 970e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 97134558513SBenny Halevy *p = cpu_to_be32(bm1); 972d017931cSAndy Adamson hdr->nops++; 973dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9741da177e4SLinus Torvalds } 9751da177e4SLinus Torvalds 976cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9771da177e4SLinus Torvalds { 978cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 979d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 9801da177e4SLinus Torvalds } 9811da177e4SLinus Torvalds 982cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9831da177e4SLinus Torvalds { 984cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 985d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 9861da177e4SLinus Torvalds } 9871da177e4SLinus Torvalds 988cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 989830b8e33SManoj Naik { 990cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 991cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 992830b8e33SManoj Naik } 993830b8e33SManoj Naik 994cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 9951da177e4SLinus Torvalds { 9968687b63aSAl Viro __be32 *p; 9971da177e4SLinus Torvalds 99813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 99934558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1000d017931cSAndy Adamson hdr->nops++; 1001dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10021da177e4SLinus Torvalds } 10031da177e4SLinus Torvalds 1004cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10051da177e4SLinus Torvalds { 10068687b63aSAl Viro __be32 *p; 10071da177e4SLinus Torvalds 100813c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1009e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1010e75bc1c8SBenny Halevy *p++ = cpu_to_be32(name->len); 101134558513SBenny Halevy xdr_encode_opaque_fixed(p, name->name, name->len); 1012d017931cSAndy Adamson hdr->nops++; 1013dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10141da177e4SLinus Torvalds } 10151da177e4SLinus Torvalds 1016911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1017911d1aafSTrond Myklebust { 1018911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1019911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1020911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1021911d1aafSTrond Myklebust } 1022911d1aafSTrond Myklebust 1023911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1024911d1aafSTrond Myklebust { 1025911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1026911d1aafSTrond Myklebust return ~(uint64_t)0; 1027911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1028911d1aafSTrond Myklebust } 1029911d1aafSTrond Myklebust 10301da177e4SLinus Torvalds /* 10311da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 10321da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 10331da177e4SLinus Torvalds */ 1034cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 10351da177e4SLinus Torvalds { 10368687b63aSAl Viro __be32 *p; 10371da177e4SLinus Torvalds 103813c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1039e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1040e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1041e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1042b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1043b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 104434558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1045911d1aafSTrond Myklebust if (args->new_lock_owner){ 104613c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32); 1047e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 104893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1049e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1050b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1051e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 105293f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "lock id:", 8); 105334558513SBenny Halevy xdr_encode_hyper(p, args->lock_owner.id); 10541da177e4SLinus Torvalds } 10551da177e4SLinus Torvalds else { 105613c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 105793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 105834558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 10591da177e4SLinus Torvalds } 1060d017931cSAndy Adamson hdr->nops++; 1061dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 10621da177e4SLinus Torvalds } 10631da177e4SLinus Torvalds 1064cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 10651da177e4SLinus Torvalds { 10668687b63aSAl Viro __be32 *p; 10671da177e4SLinus Torvalds 106813c65ce9SBenny Halevy p = reserve_space(xdr, 52); 1069e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1070e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1071b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1072b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1073b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1074e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 107593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "lock id:", 8); 107634558513SBenny Halevy xdr_encode_hyper(p, args->lock_owner.id); 1077d017931cSAndy Adamson hdr->nops++; 1078dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 10791da177e4SLinus Torvalds } 10801da177e4SLinus Torvalds 1081cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 10821da177e4SLinus Torvalds { 10838687b63aSAl Viro __be32 *p; 10841da177e4SLinus Torvalds 108513c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1086e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1087e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1088e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 108993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1090b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 109134558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1092d017931cSAndy Adamson hdr->nops++; 1093dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 10941da177e4SLinus Torvalds } 10951da177e4SLinus Torvalds 1096cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10971da177e4SLinus Torvalds { 10981da177e4SLinus Torvalds int len = name->len; 10998687b63aSAl Viro __be32 *p; 11001da177e4SLinus Torvalds 110113c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1102e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1103e75bc1c8SBenny Halevy *p++ = cpu_to_be32(len); 110434558513SBenny Halevy xdr_encode_opaque_fixed(p, name->name, len); 1105d017931cSAndy Adamson hdr->nops++; 1106dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11071da177e4SLinus Torvalds } 11081da177e4SLinus Torvalds 1109dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11101da177e4SLinus Torvalds { 11118687b63aSAl Viro __be32 *p; 11121da177e4SLinus Torvalds 111313c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1114dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11151da177e4SLinus Torvalds case FMODE_READ: 1116e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11171da177e4SLinus Torvalds break; 11181da177e4SLinus Torvalds case FMODE_WRITE: 1119e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11201da177e4SLinus Torvalds break; 11211da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1122e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11231da177e4SLinus Torvalds break; 11241da177e4SLinus Torvalds default: 1125e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11261da177e4SLinus Torvalds } 112734558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 11281da177e4SLinus Torvalds } 11291da177e4SLinus Torvalds 11301da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11311da177e4SLinus Torvalds { 11328687b63aSAl Viro __be32 *p; 11331da177e4SLinus Torvalds /* 11341da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 11351da177e4SLinus Torvalds * owner 4 = 32 11361da177e4SLinus Torvalds */ 113713c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1138e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 113934558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1140dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 114113c65ce9SBenny Halevy p = reserve_space(xdr, 28); 1142b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1143e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 114493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 114534558513SBenny Halevy xdr_encode_hyper(p, arg->id); 11461da177e4SLinus Torvalds } 11471da177e4SLinus Torvalds 11481da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11491da177e4SLinus Torvalds { 11508687b63aSAl Viro __be32 *p; 11511da177e4SLinus Torvalds 115213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 11531da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 11541da177e4SLinus Torvalds case 0: 115534558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 11561da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 11571da177e4SLinus Torvalds break; 11581da177e4SLinus Torvalds default: 115934558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 11601da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 11611da177e4SLinus Torvalds } 11621da177e4SLinus Torvalds } 11631da177e4SLinus Torvalds 11641da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11651da177e4SLinus Torvalds { 11668687b63aSAl Viro __be32 *p; 11671da177e4SLinus Torvalds 116813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 11691da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 11701da177e4SLinus Torvalds case 0: 117134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 11721da177e4SLinus Torvalds break; 11731da177e4SLinus Torvalds default: 11741da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 117534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 11761da177e4SLinus Torvalds encode_createmode(xdr, arg); 11771da177e4SLinus Torvalds } 11781da177e4SLinus Torvalds } 11791da177e4SLinus Torvalds 1180bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 11811da177e4SLinus Torvalds { 11828687b63aSAl Viro __be32 *p; 11831da177e4SLinus Torvalds 118413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 11851da177e4SLinus Torvalds switch (delegation_type) { 11861da177e4SLinus Torvalds case 0: 118734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 11881da177e4SLinus Torvalds break; 11891da177e4SLinus Torvalds case FMODE_READ: 119034558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 11911da177e4SLinus Torvalds break; 11921da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 119334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 11941da177e4SLinus Torvalds break; 11951da177e4SLinus Torvalds default: 11961da177e4SLinus Torvalds BUG(); 11971da177e4SLinus Torvalds } 11981da177e4SLinus Torvalds } 11991da177e4SLinus Torvalds 12001da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12011da177e4SLinus Torvalds { 12028687b63aSAl Viro __be32 *p; 12031da177e4SLinus Torvalds 120413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 120534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 12061da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12071da177e4SLinus Torvalds } 12081da177e4SLinus Torvalds 1209bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12101da177e4SLinus Torvalds { 12118687b63aSAl Viro __be32 *p; 12121da177e4SLinus Torvalds 121313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 121434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 12151da177e4SLinus Torvalds encode_delegation_type(xdr, type); 12161da177e4SLinus Torvalds } 12171da177e4SLinus Torvalds 12181da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 12191da177e4SLinus Torvalds { 12208687b63aSAl Viro __be32 *p; 12211da177e4SLinus Torvalds 122213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1223e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 122434558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 12251da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12261da177e4SLinus Torvalds } 12271da177e4SLinus Torvalds 1228cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 12291da177e4SLinus Torvalds { 12301da177e4SLinus Torvalds encode_openhdr(xdr, arg); 12311da177e4SLinus Torvalds encode_opentype(xdr, arg); 12321da177e4SLinus Torvalds switch (arg->claim) { 12331da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 12341da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 12351da177e4SLinus Torvalds break; 12361da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 12371da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 12381da177e4SLinus Torvalds break; 12391da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 12401da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 12411da177e4SLinus Torvalds break; 12421da177e4SLinus Torvalds default: 12431da177e4SLinus Torvalds BUG(); 12441da177e4SLinus Torvalds } 1245d017931cSAndy Adamson hdr->nops++; 1246dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 12471da177e4SLinus Torvalds } 12481da177e4SLinus Torvalds 1249cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 12501da177e4SLinus Torvalds { 12518687b63aSAl Viro __be32 *p; 12521da177e4SLinus Torvalds 125313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1254e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 125593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 125634558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1257d017931cSAndy Adamson hdr->nops++; 1258dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 12591da177e4SLinus Torvalds } 12601da177e4SLinus Torvalds 1261cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 12621da177e4SLinus Torvalds { 12638687b63aSAl Viro __be32 *p; 12641da177e4SLinus Torvalds 126513c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1266e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 126793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 126834558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1269dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1270d017931cSAndy Adamson hdr->nops++; 1271dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 12721da177e4SLinus Torvalds } 12731da177e4SLinus Torvalds 1274cf8cdbe5SAndy Adamson static void 1275d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 12761da177e4SLinus Torvalds { 12771da177e4SLinus Torvalds int len = fh->size; 12788687b63aSAl Viro __be32 *p; 12791da177e4SLinus Torvalds 128013c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1281e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1282e75bc1c8SBenny Halevy *p++ = cpu_to_be32(len); 128334558513SBenny Halevy xdr_encode_opaque_fixed(p, fh->data, len); 1284d017931cSAndy Adamson hdr->nops++; 1285dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 12861da177e4SLinus Torvalds } 12871da177e4SLinus Torvalds 1288cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12891da177e4SLinus Torvalds { 12908687b63aSAl Viro __be32 *p; 12911da177e4SLinus Torvalds 129213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 129334558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1294d017931cSAndy Adamson hdr->nops++; 1295dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 12961da177e4SLinus Torvalds } 12971da177e4SLinus Torvalds 12981da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 12991da177e4SLinus Torvalds { 13001da177e4SLinus Torvalds nfs4_stateid stateid; 13018687b63aSAl Viro __be32 *p; 13021da177e4SLinus Torvalds 130313c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 13041da177e4SLinus Torvalds if (ctx->state != NULL) { 13051da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 130634558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 13071da177e4SLinus Torvalds } else 130834558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 13091da177e4SLinus Torvalds } 13101da177e4SLinus Torvalds 1311cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13121da177e4SLinus Torvalds { 13138687b63aSAl Viro __be32 *p; 13141da177e4SLinus Torvalds 131513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 131634558513SBenny Halevy *p = cpu_to_be32(OP_READ); 13171da177e4SLinus Torvalds 13181da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13191da177e4SLinus Torvalds 132013c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1321b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 132234558513SBenny Halevy *p = cpu_to_be32(args->count); 1323d017931cSAndy Adamson hdr->nops++; 1324dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 13251da177e4SLinus Torvalds } 13261da177e4SLinus Torvalds 1327cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 13281da177e4SLinus Torvalds { 132997d312d0SManoj Naik uint32_t attrs[2] = { 133097d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 133197d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 133297d312d0SManoj Naik }; 13338687b63aSAl Viro __be32 *p; 13341da177e4SLinus Torvalds 133513c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 1336e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READDIR); 1337b95be5a9SBenny Halevy p = xdr_encode_hyper(p, readdir->cookie); 133893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 1339e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ 1340e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count); 1341e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 134297d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 134397d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 134497d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 134597d312d0SManoj Naik else 134697d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1347e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 134834558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1349d017931cSAndy Adamson hdr->nops++; 1350dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 135144109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 135244109241SFred Isaman __func__, 1353eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1354eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1355eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1356eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1357eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 13581da177e4SLinus Torvalds } 13591da177e4SLinus Torvalds 1360cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 13611da177e4SLinus Torvalds { 13628687b63aSAl Viro __be32 *p; 13631da177e4SLinus Torvalds 136413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 136534558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1366d017931cSAndy Adamson hdr->nops++; 1367dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 13681da177e4SLinus Torvalds } 13691da177e4SLinus Torvalds 1370cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13711da177e4SLinus Torvalds { 13728687b63aSAl Viro __be32 *p; 13731da177e4SLinus Torvalds 137413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1375e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1376e75bc1c8SBenny Halevy *p++ = cpu_to_be32(name->len); 137734558513SBenny Halevy xdr_encode_opaque_fixed(p, name->name, name->len); 1378d017931cSAndy Adamson hdr->nops++; 1379dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 13801da177e4SLinus Torvalds } 13811da177e4SLinus Torvalds 1382cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 13831da177e4SLinus Torvalds { 13848687b63aSAl Viro __be32 *p; 13851da177e4SLinus Torvalds 138613c65ce9SBenny Halevy p = reserve_space(xdr, 8 + oldname->len); 1387e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENAME); 1388e75bc1c8SBenny Halevy *p++ = cpu_to_be32(oldname->len); 138934558513SBenny Halevy xdr_encode_opaque_fixed(p, oldname->name, oldname->len); 13901da177e4SLinus Torvalds 139113c65ce9SBenny Halevy p = reserve_space(xdr, 4 + newname->len); 1392e75bc1c8SBenny Halevy *p++ = cpu_to_be32(newname->len); 139334558513SBenny Halevy xdr_encode_opaque_fixed(p, newname->name, newname->len); 1394d017931cSAndy Adamson hdr->nops++; 1395dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 13961da177e4SLinus Torvalds } 13971da177e4SLinus Torvalds 1398cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 13991da177e4SLinus Torvalds { 14008687b63aSAl Viro __be32 *p; 14011da177e4SLinus Torvalds 140213c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1403e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 140434558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1405d017931cSAndy Adamson hdr->nops++; 1406dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 14071da177e4SLinus Torvalds } 14081da177e4SLinus Torvalds 1409cf8cdbe5SAndy Adamson static void 1410d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 141156ae19f3STrond Myklebust { 14128687b63aSAl Viro __be32 *p; 141356ae19f3STrond Myklebust 141413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 141534558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1416d017931cSAndy Adamson hdr->nops++; 1417dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 141856ae19f3STrond Myklebust } 141956ae19f3STrond Myklebust 142056ae19f3STrond Myklebust static int 1421d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 142223ec6965SJ. Bruce Fields { 14238687b63aSAl Viro __be32 *p; 142423ec6965SJ. Bruce Fields 142513c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1426e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 142734558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 142813c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1429e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 143034558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 143123ec6965SJ. Bruce Fields if (arg->acl_len % 4) 143223ec6965SJ. Bruce Fields return -EINVAL; 143313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143434558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 143523ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1436d017931cSAndy Adamson hdr->nops++; 1437dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 143823ec6965SJ. Bruce Fields return 0; 143923ec6965SJ. Bruce Fields } 144023ec6965SJ. Bruce Fields 1441cf8cdbe5SAndy Adamson static void 1442d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14431da177e4SLinus Torvalds { 14448687b63aSAl Viro __be32 *p; 14451da177e4SLinus Torvalds 144613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144734558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1448d017931cSAndy Adamson hdr->nops++; 1449dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 14501da177e4SLinus Torvalds } 14511da177e4SLinus Torvalds 1452cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 14531da177e4SLinus Torvalds { 14548687b63aSAl Viro __be32 *p; 14551da177e4SLinus Torvalds 145613c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1457e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 145834558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1459d017931cSAndy Adamson hdr->nops++; 1460dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1461cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 14621da177e4SLinus Torvalds } 14631da177e4SLinus Torvalds 1464cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 14651da177e4SLinus Torvalds { 14668687b63aSAl Viro __be32 *p; 14671da177e4SLinus Torvalds 146813c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1469e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 147034558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 14711da177e4SLinus Torvalds 14721da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 147313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147434558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 14751da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 14761da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 147713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147834558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1479d017931cSAndy Adamson hdr->nops++; 1480dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 14811da177e4SLinus Torvalds } 14821da177e4SLinus Torvalds 1483cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 14841da177e4SLinus Torvalds { 14858687b63aSAl Viro __be32 *p; 14861da177e4SLinus Torvalds 148713c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1488e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1489b95be5a9SBenny Halevy p = xdr_encode_hyper(p, client_state->cl_clientid); 149034558513SBenny Halevy xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1491d017931cSAndy Adamson hdr->nops++; 1492dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 14931da177e4SLinus Torvalds } 14941da177e4SLinus Torvalds 1495cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 14961da177e4SLinus Torvalds { 14978687b63aSAl Viro __be32 *p; 14981da177e4SLinus Torvalds 149913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 150034558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 15011da177e4SLinus Torvalds 15021da177e4SLinus Torvalds encode_stateid(xdr, args->context); 15031da177e4SLinus Torvalds 150413c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1505b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1506e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 150734558513SBenny Halevy *p = cpu_to_be32(args->count); 15081da177e4SLinus Torvalds 15091da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1510d017931cSAndy Adamson hdr->nops++; 1511dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 15121da177e4SLinus Torvalds } 15131da177e4SLinus Torvalds 1514cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15151da177e4SLinus Torvalds { 15168687b63aSAl Viro __be32 *p; 15171da177e4SLinus Torvalds 151813c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 15191da177e4SLinus Torvalds 1520e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 152134558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1522d017931cSAndy Adamson hdr->nops++; 1523dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15241da177e4SLinus Torvalds } 15259b7b9fccSAndy Adamson 152699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15279b7b9fccSAndy Adamson /* NFSv4.1 operations */ 152899fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 152999fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 153099fe60d0SBenny Halevy struct compound_hdr *hdr) 153199fe60d0SBenny Halevy { 153299fe60d0SBenny Halevy __be32 *p; 153399fe60d0SBenny Halevy 153413c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1535e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 153634558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 153799fe60d0SBenny Halevy 153899fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 153999fe60d0SBenny Halevy 154013c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1541e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1542e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 154334558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 154499fe60d0SBenny Halevy hdr->nops++; 154599fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 154699fe60d0SBenny Halevy } 1547fc931582SAndy Adamson 1548fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1549fc931582SAndy Adamson struct nfs41_create_session_args *args, 1550fc931582SAndy Adamson struct compound_hdr *hdr) 1551fc931582SAndy Adamson { 1552fc931582SAndy Adamson __be32 *p; 1553fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1554fc931582SAndy Adamson uint32_t len; 1555fc931582SAndy Adamson struct nfs_client *clp = args->client; 1556fc931582SAndy Adamson 155742edd698SBenny Halevy len = scnprintf(machine_name, sizeof(machine_name), "%s", 155842edd698SBenny Halevy clp->cl_ipaddr); 155942edd698SBenny Halevy 156013c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1561e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1562b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1563e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1564e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1565fc931582SAndy Adamson 1566fc931582SAndy Adamson /* Fore Channel */ 1567e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1568e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1569e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 1570e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1571e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1572e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1573e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1574fc931582SAndy Adamson 1575fc931582SAndy Adamson /* Back Channel */ 1576e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1577e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1578e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1579e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1580e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1581e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1582e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1583fc931582SAndy Adamson 1584e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1585e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1586e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1587fc931582SAndy Adamson 1588fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1589e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1590e75bc1c8SBenny Halevy *p++ = cpu_to_be32(len); 159193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, machine_name, len); 1592e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1593e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 159434558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1595fc931582SAndy Adamson hdr->nops++; 1596fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1597fc931582SAndy Adamson } 15980f3e66c6SAndy Adamson 15990f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16000f3e66c6SAndy Adamson struct nfs4_session *session, 16010f3e66c6SAndy Adamson struct compound_hdr *hdr) 16020f3e66c6SAndy Adamson { 16030f3e66c6SAndy Adamson __be32 *p; 160413c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1605e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 160634558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 16070f3e66c6SAndy Adamson hdr->nops++; 16080f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 16090f3e66c6SAndy Adamson } 161099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 161199fe60d0SBenny Halevy 16129b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 16139b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 16149b7b9fccSAndy Adamson struct compound_hdr *hdr) 16159b7b9fccSAndy Adamson { 16169b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 16179b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1618fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1619fc01cea9SAndy Adamson struct nfs4_slot *slot; 1620fc01cea9SAndy Adamson __be32 *p; 16219b7b9fccSAndy Adamson 16229b7b9fccSAndy Adamson if (!session) 16239b7b9fccSAndy Adamson return; 16249b7b9fccSAndy Adamson 1625fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1626fc01cea9SAndy Adamson 1627fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1628fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1629fc01cea9SAndy Adamson 163013c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1631e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1632fc01cea9SAndy Adamson 1633fc01cea9SAndy Adamson /* 1634fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1635fc01cea9SAndy Adamson */ 1636fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1637fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1638fc01cea9SAndy Adamson __func__, 1639fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1640fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1641fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1642fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1643fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1644fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 164593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1646e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1647e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1648e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 164934558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 16509b7b9fccSAndy Adamson hdr->nops++; 16519b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 16529b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 16539b7b9fccSAndy Adamson } 16549b7b9fccSAndy Adamson 16551da177e4SLinus Torvalds /* 16561da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 16571da177e4SLinus Torvalds */ 16581da177e4SLinus Torvalds 165966cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 166066cc0429SBenny Halevy { 166166cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 166266cc0429SBenny Halevy if (args->sa_session) 166366cc0429SBenny Halevy return args->sa_session->clp->cl_minorversion; 166466cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 166566cc0429SBenny Halevy return 0; 166666cc0429SBenny Halevy } 166766cc0429SBenny Halevy 16681da177e4SLinus Torvalds /* 16691da177e4SLinus Torvalds * Encode an ACCESS request 16701da177e4SLinus Torvalds */ 16718687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 16721da177e4SLinus Torvalds { 16731da177e4SLinus Torvalds struct xdr_stream xdr; 16741da177e4SLinus Torvalds struct compound_hdr hdr = { 167566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 16761da177e4SLinus Torvalds }; 16771da177e4SLinus Torvalds 16781da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16790c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 16809b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1681cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1682cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1683cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1684d017931cSAndy Adamson encode_nops(&hdr); 1685cf8cdbe5SAndy Adamson return 0; 16861da177e4SLinus Torvalds } 16871da177e4SLinus Torvalds 16881da177e4SLinus Torvalds /* 16891da177e4SLinus Torvalds * Encode LOOKUP request 16901da177e4SLinus Torvalds */ 16918687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 16921da177e4SLinus Torvalds { 16931da177e4SLinus Torvalds struct xdr_stream xdr; 16941da177e4SLinus Torvalds struct compound_hdr hdr = { 169566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 16961da177e4SLinus Torvalds }; 16971da177e4SLinus Torvalds 16981da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16990c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17009b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1701cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1702cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1703cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1704cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1705d017931cSAndy Adamson encode_nops(&hdr); 1706cf8cdbe5SAndy Adamson return 0; 17071da177e4SLinus Torvalds } 17081da177e4SLinus Torvalds 17091da177e4SLinus Torvalds /* 17101da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 17111da177e4SLinus Torvalds */ 17128687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 17131da177e4SLinus Torvalds { 17141da177e4SLinus Torvalds struct xdr_stream xdr; 17151da177e4SLinus Torvalds struct compound_hdr hdr = { 171666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17171da177e4SLinus Torvalds }; 17181da177e4SLinus Torvalds 17191da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17200c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17219b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1722cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1723cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1724cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1725d017931cSAndy Adamson encode_nops(&hdr); 1726cf8cdbe5SAndy Adamson return 0; 17271da177e4SLinus Torvalds } 17281da177e4SLinus Torvalds 17291da177e4SLinus Torvalds /* 17301da177e4SLinus Torvalds * Encode REMOVE request 17311da177e4SLinus Torvalds */ 17324fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 17331da177e4SLinus Torvalds { 17341da177e4SLinus Torvalds struct xdr_stream xdr; 17351da177e4SLinus Torvalds struct compound_hdr hdr = { 173666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17371da177e4SLinus Torvalds }; 17381da177e4SLinus Torvalds 17391da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17400c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17419b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1742cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1743cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1744cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1745d017931cSAndy Adamson encode_nops(&hdr); 1746cf8cdbe5SAndy Adamson return 0; 17471da177e4SLinus Torvalds } 17481da177e4SLinus Torvalds 17491da177e4SLinus Torvalds /* 17501da177e4SLinus Torvalds * Encode RENAME request 17511da177e4SLinus Torvalds */ 17528687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 17531da177e4SLinus Torvalds { 17541da177e4SLinus Torvalds struct xdr_stream xdr; 17551da177e4SLinus Torvalds struct compound_hdr hdr = { 175666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17571da177e4SLinus Torvalds }; 17581da177e4SLinus Torvalds 17591da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17600c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17619b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1762cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1763cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1764cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1765cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1766cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1767cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &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 LINK request 17751da177e4SLinus Torvalds */ 17768687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_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->fh, &hdr); 1787cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1788cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1789cf8cdbe5SAndy Adamson encode_link(&xdr, args->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 CREATE request 17991da177e4SLinus Torvalds */ 18008687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_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->dir_fh, &hdr); 1811cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1812cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1813cf8cdbe5SAndy Adamson encode_getfh(&xdr, &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 SYMLINK request 18231da177e4SLinus Torvalds */ 18248687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18251da177e4SLinus Torvalds { 18261da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 18271da177e4SLinus Torvalds } 18281da177e4SLinus Torvalds 18291da177e4SLinus Torvalds /* 18301da177e4SLinus Torvalds * Encode GETATTR request 18311da177e4SLinus Torvalds */ 18328687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 18331da177e4SLinus Torvalds { 18341da177e4SLinus Torvalds struct xdr_stream xdr; 18351da177e4SLinus Torvalds struct compound_hdr hdr = { 183666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18371da177e4SLinus Torvalds }; 18381da177e4SLinus Torvalds 18391da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18400c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18419b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1842cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1843cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1844d017931cSAndy Adamson encode_nops(&hdr); 1845cf8cdbe5SAndy Adamson return 0; 18461da177e4SLinus Torvalds } 18471da177e4SLinus Torvalds 18481da177e4SLinus Torvalds /* 18491da177e4SLinus Torvalds * Encode a CLOSE request 18501da177e4SLinus Torvalds */ 18518687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 18521da177e4SLinus Torvalds { 18531da177e4SLinus Torvalds struct xdr_stream xdr; 18541da177e4SLinus Torvalds struct compound_hdr hdr = { 185566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18561da177e4SLinus Torvalds }; 18571da177e4SLinus Torvalds 18581da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18590c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18609b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1861cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1862cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1863cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1864d017931cSAndy Adamson encode_nops(&hdr); 1865cf8cdbe5SAndy Adamson return 0; 18661da177e4SLinus Torvalds } 18671da177e4SLinus Torvalds 18681da177e4SLinus Torvalds /* 18691da177e4SLinus Torvalds * Encode an OPEN request 18701da177e4SLinus Torvalds */ 18718687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 18721da177e4SLinus Torvalds { 18731da177e4SLinus Torvalds struct xdr_stream xdr; 18741da177e4SLinus Torvalds struct compound_hdr hdr = { 187566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18761da177e4SLinus Torvalds }; 18771da177e4SLinus Torvalds 18781da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18790c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18809b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1881cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1882cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1883cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1884cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1885cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1886cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &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_CONFIRM request 18941da177e4SLinus Torvalds */ 18958687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 18961da177e4SLinus Torvalds { 18971da177e4SLinus Torvalds struct xdr_stream xdr; 18981da177e4SLinus Torvalds struct compound_hdr hdr = { 1899d017931cSAndy Adamson .nops = 0, 19001da177e4SLinus Torvalds }; 19011da177e4SLinus Torvalds 19021da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19030c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1904cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1905cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1906d017931cSAndy Adamson encode_nops(&hdr); 1907cf8cdbe5SAndy Adamson return 0; 19081da177e4SLinus Torvalds } 19091da177e4SLinus Torvalds 19101da177e4SLinus Torvalds /* 19111da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 19121da177e4SLinus Torvalds */ 19138687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19141da177e4SLinus Torvalds { 19151da177e4SLinus Torvalds struct xdr_stream xdr; 19161da177e4SLinus Torvalds struct compound_hdr hdr = { 191766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19181da177e4SLinus Torvalds }; 19191da177e4SLinus Torvalds 19201da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19210c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19229b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1923cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1924cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1925cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1926d017931cSAndy Adamson encode_nops(&hdr); 1927cf8cdbe5SAndy Adamson return 0; 19281da177e4SLinus Torvalds } 19291da177e4SLinus Torvalds 19301da177e4SLinus Torvalds /* 19311da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 19321da177e4SLinus Torvalds */ 19338687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19341da177e4SLinus Torvalds { 19351da177e4SLinus Torvalds struct xdr_stream xdr; 19361da177e4SLinus Torvalds struct compound_hdr hdr = { 193766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19381da177e4SLinus Torvalds }; 19391da177e4SLinus Torvalds 19401da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19410c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19429b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1943cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1944cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1945cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1946d017931cSAndy Adamson encode_nops(&hdr); 1947cf8cdbe5SAndy Adamson return 0; 19481da177e4SLinus Torvalds } 19491da177e4SLinus Torvalds 19501da177e4SLinus Torvalds /* 19511da177e4SLinus Torvalds * Encode a LOCK request 19521da177e4SLinus Torvalds */ 19538687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 19541da177e4SLinus Torvalds { 19551da177e4SLinus Torvalds struct xdr_stream xdr; 19561da177e4SLinus Torvalds struct compound_hdr hdr = { 195766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19581da177e4SLinus Torvalds }; 19591da177e4SLinus Torvalds 19601da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19610c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19629b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1963cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1964cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 1965d017931cSAndy Adamson encode_nops(&hdr); 1966cf8cdbe5SAndy Adamson return 0; 19671da177e4SLinus Torvalds } 19681da177e4SLinus Torvalds 19691da177e4SLinus Torvalds /* 19701da177e4SLinus Torvalds * Encode a LOCKT request 19711da177e4SLinus Torvalds */ 19728687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 19731da177e4SLinus Torvalds { 19741da177e4SLinus Torvalds struct xdr_stream xdr; 19751da177e4SLinus Torvalds struct compound_hdr hdr = { 197666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19771da177e4SLinus Torvalds }; 19781da177e4SLinus Torvalds 19791da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19800c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19819b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1982cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1983cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 1984d017931cSAndy Adamson encode_nops(&hdr); 1985cf8cdbe5SAndy Adamson return 0; 19861da177e4SLinus Torvalds } 19871da177e4SLinus Torvalds 19881da177e4SLinus Torvalds /* 19891da177e4SLinus Torvalds * Encode a LOCKU request 19901da177e4SLinus Torvalds */ 19918687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 19921da177e4SLinus Torvalds { 19931da177e4SLinus Torvalds struct xdr_stream xdr; 19941da177e4SLinus Torvalds struct compound_hdr hdr = { 199566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19961da177e4SLinus Torvalds }; 19971da177e4SLinus Torvalds 19981da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19990c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20009b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2001cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2002cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 2003d017931cSAndy Adamson encode_nops(&hdr); 2004cf8cdbe5SAndy Adamson return 0; 20051da177e4SLinus Torvalds } 20061da177e4SLinus Torvalds 20071da177e4SLinus Torvalds /* 20081da177e4SLinus Torvalds * Encode a READLINK request 20091da177e4SLinus Torvalds */ 20108687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 20111da177e4SLinus Torvalds { 20121da177e4SLinus Torvalds struct xdr_stream xdr; 20131da177e4SLinus Torvalds struct compound_hdr hdr = { 201466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20151da177e4SLinus Torvalds }; 20161da177e4SLinus Torvalds 20171da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20180c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20199b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2020cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2021cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2022e3a535e1STrond Myklebust 202328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2024e3a535e1STrond Myklebust args->pgbase, args->pglen); 2025d017931cSAndy Adamson encode_nops(&hdr); 2026cf8cdbe5SAndy Adamson return 0; 20271da177e4SLinus Torvalds } 20281da177e4SLinus Torvalds 20291da177e4SLinus Torvalds /* 20301da177e4SLinus Torvalds * Encode a READDIR request 20311da177e4SLinus Torvalds */ 20328687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 20331da177e4SLinus Torvalds { 20341da177e4SLinus Torvalds struct xdr_stream xdr; 20351da177e4SLinus Torvalds struct compound_hdr hdr = { 203666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20371da177e4SLinus Torvalds }; 20381da177e4SLinus Torvalds 20391da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20400c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20419b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2042cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2043cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2044d6ac02dfSTrond Myklebust 204528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2046d6ac02dfSTrond Myklebust args->pgbase, args->count); 2047d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 204828f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2049d6ac02dfSTrond Myklebust args->pgbase, args->count); 2050d017931cSAndy Adamson encode_nops(&hdr); 2051cf8cdbe5SAndy Adamson return 0; 20521da177e4SLinus Torvalds } 20531da177e4SLinus Torvalds 20541da177e4SLinus Torvalds /* 20551da177e4SLinus Torvalds * Encode a READ request 20561da177e4SLinus Torvalds */ 20578687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 20581da177e4SLinus Torvalds { 20591da177e4SLinus Torvalds struct xdr_stream xdr; 20601da177e4SLinus Torvalds struct compound_hdr hdr = { 206166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20621da177e4SLinus Torvalds }; 20631da177e4SLinus Torvalds 20641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20650c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20669b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2067cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2068cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 20691da177e4SLinus Torvalds 207028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 20711da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 20724f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2073d017931cSAndy Adamson encode_nops(&hdr); 2074cf8cdbe5SAndy Adamson return 0; 20751da177e4SLinus Torvalds } 20761da177e4SLinus Torvalds 20771da177e4SLinus Torvalds /* 20781da177e4SLinus Torvalds * Encode an SETATTR request 20791da177e4SLinus Torvalds */ 20808687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 20811da177e4SLinus Torvalds { 20821da177e4SLinus Torvalds struct xdr_stream xdr; 20831da177e4SLinus Torvalds struct compound_hdr hdr = { 208466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20851da177e4SLinus Torvalds }; 20861da177e4SLinus Torvalds 20871da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20880c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20899b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2090cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2091cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2092cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2093d017931cSAndy Adamson encode_nops(&hdr); 2094cf8cdbe5SAndy Adamson return 0; 20951da177e4SLinus Torvalds } 20961da177e4SLinus Torvalds 20971da177e4SLinus Torvalds /* 2098029d105eSJ. Bruce Fields * Encode a GETACL request 2099029d105eSJ. Bruce Fields */ 2100029d105eSJ. Bruce Fields static int 21018687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2102029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2103029d105eSJ. Bruce Fields { 2104029d105eSJ. Bruce Fields struct xdr_stream xdr; 2105029d105eSJ. Bruce Fields struct compound_hdr hdr = { 210666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2107029d105eSJ. Bruce Fields }; 210828f56694SBenny Halevy uint32_t replen; 2109029d105eSJ. Bruce Fields 2110029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21110c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21129b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2113cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 211428f56694SBenny Halevy replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; 2115cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2116cf8cdbe5SAndy Adamson 211728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2118029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2119d017931cSAndy Adamson encode_nops(&hdr); 2120cf8cdbe5SAndy Adamson return 0; 2121029d105eSJ. Bruce Fields } 2122029d105eSJ. Bruce Fields 2123029d105eSJ. Bruce Fields /* 21241da177e4SLinus Torvalds * Encode a WRITE request 21251da177e4SLinus Torvalds */ 21268687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21271da177e4SLinus Torvalds { 21281da177e4SLinus Torvalds struct xdr_stream xdr; 21291da177e4SLinus Torvalds struct compound_hdr hdr = { 213066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21311da177e4SLinus Torvalds }; 21321da177e4SLinus Torvalds 21331da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21340c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21359b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2136cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2137cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 21384f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2139cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2140d017931cSAndy Adamson encode_nops(&hdr); 2141cf8cdbe5SAndy Adamson return 0; 21421da177e4SLinus Torvalds } 21431da177e4SLinus Torvalds 21441da177e4SLinus Torvalds /* 21451da177e4SLinus Torvalds * a COMMIT request 21461da177e4SLinus Torvalds */ 21478687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21481da177e4SLinus Torvalds { 21491da177e4SLinus Torvalds struct xdr_stream xdr; 21501da177e4SLinus Torvalds struct compound_hdr hdr = { 215166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21521da177e4SLinus Torvalds }; 21531da177e4SLinus Torvalds 21541da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21550c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21569b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2157cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2158cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2159cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2160d017931cSAndy Adamson encode_nops(&hdr); 2161cf8cdbe5SAndy Adamson return 0; 21621da177e4SLinus Torvalds } 21631da177e4SLinus Torvalds 21641da177e4SLinus Torvalds /* 21651da177e4SLinus Torvalds * FSINFO request 21661da177e4SLinus Torvalds */ 21678687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 21681da177e4SLinus Torvalds { 21691da177e4SLinus Torvalds struct xdr_stream xdr; 21701da177e4SLinus Torvalds struct compound_hdr hdr = { 217166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21721da177e4SLinus Torvalds }; 21731da177e4SLinus Torvalds 21741da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21750c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21769b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2177cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2178cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2179d017931cSAndy Adamson encode_nops(&hdr); 2180cf8cdbe5SAndy Adamson return 0; 21811da177e4SLinus Torvalds } 21821da177e4SLinus Torvalds 21831da177e4SLinus Torvalds /* 21841da177e4SLinus Torvalds * a PATHCONF request 21851da177e4SLinus Torvalds */ 21868687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 21871da177e4SLinus Torvalds { 21881da177e4SLinus Torvalds struct xdr_stream xdr; 21891da177e4SLinus Torvalds struct compound_hdr hdr = { 219066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21911da177e4SLinus Torvalds }; 21921da177e4SLinus Torvalds 21931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21940c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21959b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2196cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2197cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2198d017931cSAndy Adamson &hdr); 2199d017931cSAndy Adamson encode_nops(&hdr); 2200cf8cdbe5SAndy Adamson return 0; 22011da177e4SLinus Torvalds } 22021da177e4SLinus Torvalds 22031da177e4SLinus Torvalds /* 22041da177e4SLinus Torvalds * a STATFS request 22051da177e4SLinus Torvalds */ 22068687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 22071da177e4SLinus Torvalds { 22081da177e4SLinus Torvalds struct xdr_stream xdr; 22091da177e4SLinus Torvalds struct compound_hdr hdr = { 221066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22111da177e4SLinus Torvalds }; 22121da177e4SLinus Torvalds 22131da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22140c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22159b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2216cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2217cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2218d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2219d017931cSAndy Adamson encode_nops(&hdr); 2220cf8cdbe5SAndy Adamson return 0; 22211da177e4SLinus Torvalds } 22221da177e4SLinus Torvalds 22231da177e4SLinus Torvalds /* 22241da177e4SLinus Torvalds * GETATTR_BITMAP request 22251da177e4SLinus Torvalds */ 222643652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 222743652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 22281da177e4SLinus Torvalds { 22291da177e4SLinus Torvalds struct xdr_stream xdr; 22301da177e4SLinus Torvalds struct compound_hdr hdr = { 223166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22321da177e4SLinus Torvalds }; 22331da177e4SLinus Torvalds 22341da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22350c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22369b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 223743652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2238cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 22391da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 22401da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2241d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2242d017931cSAndy Adamson encode_nops(&hdr); 2243cf8cdbe5SAndy Adamson return 0; 22441da177e4SLinus Torvalds } 22451da177e4SLinus Torvalds 22461da177e4SLinus Torvalds /* 22471da177e4SLinus Torvalds * a RENEW request 22481da177e4SLinus Torvalds */ 22498687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22501da177e4SLinus Torvalds { 22511da177e4SLinus Torvalds struct xdr_stream xdr; 22521da177e4SLinus Torvalds struct compound_hdr hdr = { 2253d017931cSAndy Adamson .nops = 0, 22541da177e4SLinus Torvalds }; 22551da177e4SLinus Torvalds 22561da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22570c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2258cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2259d017931cSAndy Adamson encode_nops(&hdr); 2260cf8cdbe5SAndy Adamson return 0; 22611da177e4SLinus Torvalds } 22621da177e4SLinus Torvalds 22631da177e4SLinus Torvalds /* 22641da177e4SLinus Torvalds * a SETCLIENTID request 22651da177e4SLinus Torvalds */ 22668687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 22671da177e4SLinus Torvalds { 22681da177e4SLinus Torvalds struct xdr_stream xdr; 22691da177e4SLinus Torvalds struct compound_hdr hdr = { 2270d017931cSAndy Adamson .nops = 0, 22711da177e4SLinus Torvalds }; 22721da177e4SLinus Torvalds 22731da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22740c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2275cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2276d017931cSAndy Adamson encode_nops(&hdr); 2277cf8cdbe5SAndy Adamson return 0; 22781da177e4SLinus Torvalds } 22791da177e4SLinus Torvalds 22801da177e4SLinus Torvalds /* 22811da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 22821da177e4SLinus Torvalds */ 22838687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22841da177e4SLinus Torvalds { 22851da177e4SLinus Torvalds struct xdr_stream xdr; 22861da177e4SLinus Torvalds struct compound_hdr hdr = { 2287d017931cSAndy Adamson .nops = 0, 22881da177e4SLinus Torvalds }; 22891da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 22901da177e4SLinus Torvalds 22911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22920c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2293cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 2294cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2295cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2296d017931cSAndy Adamson encode_nops(&hdr); 2297cf8cdbe5SAndy Adamson return 0; 22981da177e4SLinus Torvalds } 22991da177e4SLinus Torvalds 23001da177e4SLinus Torvalds /* 23011da177e4SLinus Torvalds * DELEGRETURN request 23021da177e4SLinus Torvalds */ 23038687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 23041da177e4SLinus Torvalds { 23051da177e4SLinus Torvalds struct xdr_stream xdr; 23061da177e4SLinus Torvalds struct compound_hdr hdr = { 230766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23081da177e4SLinus Torvalds }; 23091da177e4SLinus Torvalds 23101da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23110c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23129b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2313cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2314cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2315cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2316d017931cSAndy Adamson encode_nops(&hdr); 2317cf8cdbe5SAndy Adamson return 0; 23181da177e4SLinus Torvalds } 23191da177e4SLinus Torvalds 23201da177e4SLinus Torvalds /* 2321683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2322683b57b4STrond Myklebust */ 23238687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2324683b57b4STrond Myklebust { 2325683b57b4STrond Myklebust struct xdr_stream xdr; 2326683b57b4STrond Myklebust struct compound_hdr hdr = { 232766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2328683b57b4STrond Myklebust }; 232928f56694SBenny Halevy uint32_t replen; 2330683b57b4STrond Myklebust 2331683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23320c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23339b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2334cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2335cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 233628f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2337cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2338cf8cdbe5SAndy Adamson 233928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2340683b57b4STrond Myklebust 0, PAGE_SIZE); 2341d017931cSAndy Adamson encode_nops(&hdr); 2342cf8cdbe5SAndy Adamson return 0; 2343683b57b4STrond Myklebust } 2344683b57b4STrond Myklebust 234599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 234699fe60d0SBenny Halevy /* 234799fe60d0SBenny Halevy * EXCHANGE_ID request 234899fe60d0SBenny Halevy */ 234999fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 235099fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 235199fe60d0SBenny Halevy { 235299fe60d0SBenny Halevy struct xdr_stream xdr; 235399fe60d0SBenny Halevy struct compound_hdr hdr = { 235499fe60d0SBenny Halevy .minorversion = args->client->cl_minorversion, 235599fe60d0SBenny Halevy }; 235699fe60d0SBenny Halevy 235799fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 235899fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 235999fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 236099fe60d0SBenny Halevy encode_nops(&hdr); 236199fe60d0SBenny Halevy return 0; 236299fe60d0SBenny Halevy } 23632050f0ccSAndy Adamson 23642050f0ccSAndy Adamson /* 2365fc931582SAndy Adamson * a CREATE_SESSION request 2366fc931582SAndy Adamson */ 2367fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2368fc931582SAndy Adamson struct nfs41_create_session_args *args) 2369fc931582SAndy Adamson { 2370fc931582SAndy Adamson struct xdr_stream xdr; 2371fc931582SAndy Adamson struct compound_hdr hdr = { 2372fc931582SAndy Adamson .minorversion = args->client->cl_minorversion, 2373fc931582SAndy Adamson }; 2374fc931582SAndy Adamson 2375fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2376fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2377fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2378fc931582SAndy Adamson encode_nops(&hdr); 2379fc931582SAndy Adamson return 0; 2380fc931582SAndy Adamson } 2381fc931582SAndy Adamson 2382fc931582SAndy Adamson /* 23830f3e66c6SAndy Adamson * a DESTROY_SESSION request 23840f3e66c6SAndy Adamson */ 23850f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 23860f3e66c6SAndy Adamson struct nfs4_session *session) 23870f3e66c6SAndy Adamson { 23880f3e66c6SAndy Adamson struct xdr_stream xdr; 23890f3e66c6SAndy Adamson struct compound_hdr hdr = { 23900f3e66c6SAndy Adamson .minorversion = session->clp->cl_minorversion, 23910f3e66c6SAndy Adamson }; 23920f3e66c6SAndy Adamson 23930f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23940f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 23950f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 23960f3e66c6SAndy Adamson encode_nops(&hdr); 23970f3e66c6SAndy Adamson return 0; 23980f3e66c6SAndy Adamson } 23990f3e66c6SAndy Adamson 24000f3e66c6SAndy Adamson /* 2401fc01cea9SAndy Adamson * a SEQUENCE request 2402fc01cea9SAndy Adamson */ 2403fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2404fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2405fc01cea9SAndy Adamson { 2406fc01cea9SAndy Adamson struct xdr_stream xdr; 2407fc01cea9SAndy Adamson struct compound_hdr hdr = { 2408fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2409fc01cea9SAndy Adamson }; 2410fc01cea9SAndy Adamson 2411fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2412fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2413fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2414fc01cea9SAndy Adamson encode_nops(&hdr); 2415fc01cea9SAndy Adamson return 0; 2416fc01cea9SAndy Adamson } 2417fc01cea9SAndy Adamson 2418fc01cea9SAndy Adamson /* 24192050f0ccSAndy Adamson * a GET_LEASE_TIME request 24202050f0ccSAndy Adamson */ 24212050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 24222050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 24232050f0ccSAndy Adamson { 24242050f0ccSAndy Adamson struct xdr_stream xdr; 24252050f0ccSAndy Adamson struct compound_hdr hdr = { 24262050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 24272050f0ccSAndy Adamson }; 24282050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24292050f0ccSAndy Adamson 24302050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24312050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24322050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 24332050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 24342050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 24352050f0ccSAndy Adamson encode_nops(&hdr); 24362050f0ccSAndy Adamson return 0; 24372050f0ccSAndy Adamson } 243899fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 243999fe60d0SBenny Halevy 2440683b57b4STrond Myklebust /* 24411da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 24421da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 24431da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 24441da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 24451da177e4SLinus Torvalds * 24461da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 24471da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 24481da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 24491da177e4SLinus Torvalds */ 24501da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 24511da177e4SLinus Torvalds #define READ64(x) do { \ 24521da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 24531da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 24541da177e4SLinus Torvalds } while (0) 24551da177e4SLinus Torvalds #define READTIME(x) do { \ 24561da177e4SLinus Torvalds p++; \ 24571da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 24581da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 24591da177e4SLinus Torvalds } while (0) 24601da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 24611da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 24621da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 24631da177e4SLinus Torvalds } while (0) 24641da177e4SLinus Torvalds 24651da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 24661da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2467e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2468fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 24693110ff80SHarvey Harrison " buffer\n", __func__); \ 2470fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 24713110ff80SHarvey Harrison __func__, xdr->p, nbytes, xdr->end); \ 24721da177e4SLinus Torvalds return -EIO; \ 24731da177e4SLinus Torvalds } \ 24741da177e4SLinus Torvalds } while (0) 24751da177e4SLinus Torvalds 2476683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 24771da177e4SLinus Torvalds { 24788687b63aSAl Viro __be32 *p; 24791da177e4SLinus Torvalds 24801da177e4SLinus Torvalds READ_BUF(4); 24811da177e4SLinus Torvalds READ32(*len); 24821da177e4SLinus Torvalds READ_BUF(*len); 24831da177e4SLinus Torvalds *string = (char *)p; 24841da177e4SLinus Torvalds return 0; 24851da177e4SLinus Torvalds } 24861da177e4SLinus Torvalds 24871da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 24881da177e4SLinus Torvalds { 24898687b63aSAl Viro __be32 *p; 24901da177e4SLinus Torvalds 24911da177e4SLinus Torvalds READ_BUF(8); 24921da177e4SLinus Torvalds READ32(hdr->status); 24931da177e4SLinus Torvalds READ32(hdr->taglen); 24941da177e4SLinus Torvalds 24951da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 24961da177e4SLinus Torvalds hdr->tag = (char *)p; 24971da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 24981da177e4SLinus Torvalds READ32(hdr->nops); 2499aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2500aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 25011da177e4SLinus Torvalds return 0; 25021da177e4SLinus Torvalds } 25031da177e4SLinus Torvalds 25041da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 25051da177e4SLinus Torvalds { 25068687b63aSAl Viro __be32 *p; 25071da177e4SLinus Torvalds uint32_t opnum; 25081da177e4SLinus Torvalds int32_t nfserr; 25091da177e4SLinus Torvalds 25101da177e4SLinus Torvalds READ_BUF(8); 25111da177e4SLinus Torvalds READ32(opnum); 25121da177e4SLinus Torvalds if (opnum != expected) { 2513fe82a183SChuck Lever dprintk("nfs: Server returned operation" 25141da177e4SLinus Torvalds " %d but we issued a request for %d\n", 25151da177e4SLinus Torvalds opnum, expected); 25161da177e4SLinus Torvalds return -EIO; 25171da177e4SLinus Torvalds } 25181da177e4SLinus Torvalds READ32(nfserr); 25191da177e4SLinus Torvalds if (nfserr != NFS_OK) 2520856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 25211da177e4SLinus Torvalds return 0; 25221da177e4SLinus Torvalds } 25231da177e4SLinus Torvalds 25241da177e4SLinus Torvalds /* Dummy routine */ 2525adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 25261da177e4SLinus Torvalds { 25278687b63aSAl Viro __be32 *p; 2528683b57b4STrond Myklebust unsigned int strlen; 25291da177e4SLinus Torvalds char *str; 25301da177e4SLinus Torvalds 25311da177e4SLinus Torvalds READ_BUF(12); 25321da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 25331da177e4SLinus Torvalds } 25341da177e4SLinus Torvalds 25351da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 25361da177e4SLinus Torvalds { 25378687b63aSAl Viro uint32_t bmlen; 25388687b63aSAl Viro __be32 *p; 25391da177e4SLinus Torvalds 25401da177e4SLinus Torvalds READ_BUF(4); 25411da177e4SLinus Torvalds READ32(bmlen); 25421da177e4SLinus Torvalds 25431da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 25441da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 25451da177e4SLinus Torvalds if (bmlen > 0) { 25461da177e4SLinus Torvalds READ32(bitmap[0]); 25471da177e4SLinus Torvalds if (bmlen > 1) 25481da177e4SLinus Torvalds READ32(bitmap[1]); 25491da177e4SLinus Torvalds } 25501da177e4SLinus Torvalds return 0; 25511da177e4SLinus Torvalds } 25521da177e4SLinus Torvalds 25538687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 25541da177e4SLinus Torvalds { 25558687b63aSAl Viro __be32 *p; 25561da177e4SLinus Torvalds 25571da177e4SLinus Torvalds READ_BUF(4); 25581da177e4SLinus Torvalds READ32(*attrlen); 25591da177e4SLinus Torvalds *savep = xdr->p; 25601da177e4SLinus Torvalds return 0; 25611da177e4SLinus Torvalds } 25621da177e4SLinus Torvalds 25631da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 25641da177e4SLinus Torvalds { 25651da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 25661da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 25671da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 25681da177e4SLinus Torvalds } else 25691da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 257044109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 25711da177e4SLinus Torvalds return 0; 25721da177e4SLinus Torvalds } 25731da177e4SLinus Torvalds 25741da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 25751da177e4SLinus Torvalds { 25768687b63aSAl Viro __be32 *p; 2577409924e4STrond Myklebust int ret = 0; 25781da177e4SLinus Torvalds 25791da177e4SLinus Torvalds *type = 0; 25801da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 25811da177e4SLinus Torvalds return -EIO; 25821da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 25831da177e4SLinus Torvalds READ_BUF(4); 25841da177e4SLinus Torvalds READ32(*type); 25851da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 25863110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 25871da177e4SLinus Torvalds return -EIO; 25881da177e4SLinus Torvalds } 25891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2590409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 25911da177e4SLinus Torvalds } 2592bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2593409924e4STrond Myklebust return ret; 25941da177e4SLinus Torvalds } 25951da177e4SLinus Torvalds 25961da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 25971da177e4SLinus Torvalds { 25988687b63aSAl Viro __be32 *p; 2599409924e4STrond Myklebust int ret = 0; 26001da177e4SLinus Torvalds 26011da177e4SLinus Torvalds *change = 0; 26021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 26031da177e4SLinus Torvalds return -EIO; 26041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 26051da177e4SLinus Torvalds READ_BUF(8); 26061da177e4SLinus Torvalds READ64(*change); 26071da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2608409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 26091da177e4SLinus Torvalds } 26103110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 26111da177e4SLinus Torvalds (unsigned long long)*change); 2612409924e4STrond Myklebust return ret; 26131da177e4SLinus Torvalds } 26141da177e4SLinus Torvalds 26151da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 26161da177e4SLinus Torvalds { 26178687b63aSAl Viro __be32 *p; 2618409924e4STrond Myklebust int ret = 0; 26191da177e4SLinus Torvalds 26201da177e4SLinus Torvalds *size = 0; 26211da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 26221da177e4SLinus Torvalds return -EIO; 26231da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 26241da177e4SLinus Torvalds READ_BUF(8); 26251da177e4SLinus Torvalds READ64(*size); 26261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2627409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 26281da177e4SLinus Torvalds } 26293110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2630409924e4STrond Myklebust return ret; 26311da177e4SLinus Torvalds } 26321da177e4SLinus Torvalds 26331da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26341da177e4SLinus Torvalds { 26358687b63aSAl Viro __be32 *p; 26361da177e4SLinus Torvalds 26371da177e4SLinus Torvalds *res = 0; 26381da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 26391da177e4SLinus Torvalds return -EIO; 26401da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 26411da177e4SLinus Torvalds READ_BUF(4); 26421da177e4SLinus Torvalds READ32(*res); 26431da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 26441da177e4SLinus Torvalds } 26453110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 26461da177e4SLinus Torvalds return 0; 26471da177e4SLinus Torvalds } 26481da177e4SLinus Torvalds 26491da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26501da177e4SLinus Torvalds { 26518687b63aSAl Viro __be32 *p; 26521da177e4SLinus Torvalds 26531da177e4SLinus Torvalds *res = 0; 26541da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 26551da177e4SLinus Torvalds return -EIO; 26561da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 26571da177e4SLinus Torvalds READ_BUF(4); 26581da177e4SLinus Torvalds READ32(*res); 26591da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 26601da177e4SLinus Torvalds } 26613110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 26621da177e4SLinus Torvalds return 0; 26631da177e4SLinus Torvalds } 26641da177e4SLinus Torvalds 26658b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 26661da177e4SLinus Torvalds { 26678687b63aSAl Viro __be32 *p; 2668409924e4STrond Myklebust int ret = 0; 26691da177e4SLinus Torvalds 26701da177e4SLinus Torvalds fsid->major = 0; 26711da177e4SLinus Torvalds fsid->minor = 0; 26721da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 26731da177e4SLinus Torvalds return -EIO; 26741da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 26751da177e4SLinus Torvalds READ_BUF(16); 26761da177e4SLinus Torvalds READ64(fsid->major); 26771da177e4SLinus Torvalds READ64(fsid->minor); 26781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2679409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 26801da177e4SLinus Torvalds } 26813110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 26821da177e4SLinus Torvalds (unsigned long long)fsid->major, 26831da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2684409924e4STrond Myklebust return ret; 26851da177e4SLinus Torvalds } 26861da177e4SLinus Torvalds 26871da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26881da177e4SLinus Torvalds { 26898687b63aSAl Viro __be32 *p; 26901da177e4SLinus Torvalds 26911da177e4SLinus Torvalds *res = 60; 26921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 26931da177e4SLinus Torvalds return -EIO; 26941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 26951da177e4SLinus Torvalds READ_BUF(4); 26961da177e4SLinus Torvalds READ32(*res); 26971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 26981da177e4SLinus Torvalds } 26993110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 27001da177e4SLinus Torvalds return 0; 27011da177e4SLinus Torvalds } 27021da177e4SLinus Torvalds 27031da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27041da177e4SLinus Torvalds { 27058687b63aSAl Viro __be32 *p; 27061da177e4SLinus Torvalds 27071da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 27081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 27091da177e4SLinus Torvalds return -EIO; 27101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 27111da177e4SLinus Torvalds READ_BUF(4); 27121da177e4SLinus Torvalds READ32(*res); 27131da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 27141da177e4SLinus Torvalds } 27153110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 27161da177e4SLinus Torvalds return 0; 27171da177e4SLinus Torvalds } 27181da177e4SLinus Torvalds 27191da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 27201da177e4SLinus Torvalds { 27218687b63aSAl Viro __be32 *p; 2722409924e4STrond Myklebust int ret = 0; 27231da177e4SLinus Torvalds 27241da177e4SLinus Torvalds *fileid = 0; 27251da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 27261da177e4SLinus Torvalds return -EIO; 27271da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 27281da177e4SLinus Torvalds READ_BUF(8); 27291da177e4SLinus Torvalds READ64(*fileid); 27301da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2731409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 27321da177e4SLinus Torvalds } 27333110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2734409924e4STrond Myklebust return ret; 27351da177e4SLinus Torvalds } 27361da177e4SLinus Torvalds 273799baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 273899baf625SManoj Naik { 27398687b63aSAl Viro __be32 *p; 2740409924e4STrond Myklebust int ret = 0; 274199baf625SManoj Naik 274299baf625SManoj Naik *fileid = 0; 274399baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 274499baf625SManoj Naik return -EIO; 274599baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 274699baf625SManoj Naik READ_BUF(8); 274799baf625SManoj Naik READ64(*fileid); 274899baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2749409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 275099baf625SManoj Naik } 27513110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2752409924e4STrond Myklebust return ret; 275399baf625SManoj Naik } 275499baf625SManoj Naik 27551da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27561da177e4SLinus Torvalds { 27578687b63aSAl Viro __be32 *p; 27581da177e4SLinus Torvalds int status = 0; 27591da177e4SLinus Torvalds 27601da177e4SLinus Torvalds *res = 0; 27611da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 27621da177e4SLinus Torvalds return -EIO; 27631da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 27641da177e4SLinus Torvalds READ_BUF(8); 27651da177e4SLinus Torvalds READ64(*res); 27661da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 27671da177e4SLinus Torvalds } 27683110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 27691da177e4SLinus Torvalds return status; 27701da177e4SLinus Torvalds } 27711da177e4SLinus Torvalds 27721da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27731da177e4SLinus Torvalds { 27748687b63aSAl Viro __be32 *p; 27751da177e4SLinus Torvalds int status = 0; 27761da177e4SLinus Torvalds 27771da177e4SLinus Torvalds *res = 0; 27781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 27791da177e4SLinus Torvalds return -EIO; 27801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 27811da177e4SLinus Torvalds READ_BUF(8); 27821da177e4SLinus Torvalds READ64(*res); 27831da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 27841da177e4SLinus Torvalds } 27853110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 27861da177e4SLinus Torvalds return status; 27871da177e4SLinus Torvalds } 27881da177e4SLinus Torvalds 27891da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27901da177e4SLinus Torvalds { 27918687b63aSAl Viro __be32 *p; 27921da177e4SLinus Torvalds int status = 0; 27931da177e4SLinus Torvalds 27941da177e4SLinus Torvalds *res = 0; 27951da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 27961da177e4SLinus Torvalds return -EIO; 27971da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 27981da177e4SLinus Torvalds READ_BUF(8); 27991da177e4SLinus Torvalds READ64(*res); 28001da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 28011da177e4SLinus Torvalds } 28023110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 28031da177e4SLinus Torvalds return status; 28041da177e4SLinus Torvalds } 28051da177e4SLinus Torvalds 28067aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 28077aaa0b3bSManoj Naik { 2808464ad6b1SChuck Lever u32 n; 28098687b63aSAl Viro __be32 *p; 28107aaa0b3bSManoj Naik int status = 0; 28117aaa0b3bSManoj Naik 28127aaa0b3bSManoj Naik READ_BUF(4); 28137aaa0b3bSManoj Naik READ32(n); 281433a43f28SAndy Adamson if (n == 0) 281533a43f28SAndy Adamson goto root_path; 28167aaa0b3bSManoj Naik dprintk("path "); 28177aaa0b3bSManoj Naik path->ncomponents = 0; 28187aaa0b3bSManoj Naik while (path->ncomponents < n) { 28197aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 28207aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 28217aaa0b3bSManoj Naik if (unlikely(status != 0)) 28227aaa0b3bSManoj Naik goto out_eio; 28237aaa0b3bSManoj Naik if (path->ncomponents != n) 28247aaa0b3bSManoj Naik dprintk("/"); 28257aaa0b3bSManoj Naik dprintk("%s", component->data); 28267aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 28277aaa0b3bSManoj Naik path->ncomponents++; 28287aaa0b3bSManoj Naik else { 28297aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 28307aaa0b3bSManoj Naik goto out_eio; 28317aaa0b3bSManoj Naik } 28327aaa0b3bSManoj Naik } 28337aaa0b3bSManoj Naik out: 28347aaa0b3bSManoj Naik dprintk("\n"); 28357aaa0b3bSManoj Naik return status; 283633a43f28SAndy Adamson root_path: 283733a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 283833a43f28SAndy Adamson path->ncomponents = 1; 283933a43f28SAndy Adamson path->components[0].len=0; 284033a43f28SAndy Adamson path->components[0].data=NULL; 284133a43f28SAndy Adamson dprintk("path /\n"); 284233a43f28SAndy Adamson goto out; 28437aaa0b3bSManoj Naik out_eio: 28447aaa0b3bSManoj Naik dprintk(" status %d", status); 28457aaa0b3bSManoj Naik status = -EIO; 28467aaa0b3bSManoj Naik goto out; 28477aaa0b3bSManoj Naik } 28487aaa0b3bSManoj Naik 28497aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2850683b57b4STrond Myklebust { 2851683b57b4STrond Myklebust int n; 28528687b63aSAl Viro __be32 *p; 2853683b57b4STrond Myklebust int status = -EIO; 2854683b57b4STrond Myklebust 2855683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2856683b57b4STrond Myklebust goto out; 2857683b57b4STrond Myklebust status = 0; 2858683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2859683b57b4STrond Myklebust goto out; 28603110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 28617aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2862683b57b4STrond Myklebust if (unlikely(status != 0)) 2863683b57b4STrond Myklebust goto out; 2864683b57b4STrond Myklebust READ_BUF(4); 2865683b57b4STrond Myklebust READ32(n); 2866683b57b4STrond Myklebust if (n <= 0) 2867683b57b4STrond Myklebust goto out_eio; 2868683b57b4STrond Myklebust res->nlocations = 0; 2869683b57b4STrond Myklebust while (res->nlocations < n) { 2870464ad6b1SChuck Lever u32 m; 28717aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2872683b57b4STrond Myklebust 28737aaa0b3bSManoj Naik READ_BUF(4); 28747aaa0b3bSManoj Naik READ32(m); 28757aaa0b3bSManoj Naik 28767aaa0b3bSManoj Naik loc->nservers = 0; 28773110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 28787aaa0b3bSManoj Naik while (loc->nservers < m) { 28797aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 28807aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2881683b57b4STrond Myklebust if (unlikely(status != 0)) 2882683b57b4STrond Myklebust goto out_eio; 28837aaa0b3bSManoj Naik dprintk("%s ", server->data); 28847aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 28857aaa0b3bSManoj Naik loc->nservers++; 28867aaa0b3bSManoj Naik else { 2887464ad6b1SChuck Lever unsigned int i; 2888464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2889464ad6b1SChuck Lever "returned for location %u\n", 28903110ff80SHarvey Harrison __func__, 2891464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2892464ad6b1SChuck Lever m, res->nlocations); 28937aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 28942e42c3e2STrond Myklebust unsigned int len; 28957aaa0b3bSManoj Naik char *data; 28967aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2897683b57b4STrond Myklebust if (unlikely(status != 0)) 2898683b57b4STrond Myklebust goto out_eio; 28997aaa0b3bSManoj Naik } 29007aaa0b3bSManoj Naik } 29017aaa0b3bSManoj Naik } 29027aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 29037aaa0b3bSManoj Naik if (unlikely(status != 0)) 29047aaa0b3bSManoj Naik goto out_eio; 29057aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2906683b57b4STrond Myklebust res->nlocations++; 2907683b57b4STrond Myklebust } 2908409924e4STrond Myklebust if (res->nlocations != 0) 2909409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 2910683b57b4STrond Myklebust out: 29113110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2912683b57b4STrond Myklebust return status; 2913683b57b4STrond Myklebust out_eio: 2914683b57b4STrond Myklebust status = -EIO; 2915683b57b4STrond Myklebust goto out; 2916683b57b4STrond Myklebust } 2917683b57b4STrond Myklebust 29181da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29191da177e4SLinus Torvalds { 29208687b63aSAl Viro __be32 *p; 29211da177e4SLinus Torvalds int status = 0; 29221da177e4SLinus Torvalds 29231da177e4SLinus Torvalds *res = 0; 29241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 29251da177e4SLinus Torvalds return -EIO; 29261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 29271da177e4SLinus Torvalds READ_BUF(8); 29281da177e4SLinus Torvalds READ64(*res); 29291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 29301da177e4SLinus Torvalds } 29313110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 29321da177e4SLinus Torvalds return status; 29331da177e4SLinus Torvalds } 29341da177e4SLinus Torvalds 29351da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 29361da177e4SLinus Torvalds { 29378687b63aSAl Viro __be32 *p; 29381da177e4SLinus Torvalds int status = 0; 29391da177e4SLinus Torvalds 29401da177e4SLinus Torvalds *maxlink = 1; 29411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 29421da177e4SLinus Torvalds return -EIO; 29431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 29441da177e4SLinus Torvalds READ_BUF(4); 29451da177e4SLinus Torvalds READ32(*maxlink); 29461da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 29471da177e4SLinus Torvalds } 29483110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 29491da177e4SLinus Torvalds return status; 29501da177e4SLinus Torvalds } 29511da177e4SLinus Torvalds 29521da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 29531da177e4SLinus Torvalds { 29548687b63aSAl Viro __be32 *p; 29551da177e4SLinus Torvalds int status = 0; 29561da177e4SLinus Torvalds 29571da177e4SLinus Torvalds *maxname = 1024; 29581da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 29591da177e4SLinus Torvalds return -EIO; 29601da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 29611da177e4SLinus Torvalds READ_BUF(4); 29621da177e4SLinus Torvalds READ32(*maxname); 29631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 29641da177e4SLinus Torvalds } 29653110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 29661da177e4SLinus Torvalds return status; 29671da177e4SLinus Torvalds } 29681da177e4SLinus Torvalds 29691da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29701da177e4SLinus Torvalds { 29718687b63aSAl Viro __be32 *p; 29721da177e4SLinus Torvalds int status = 0; 29731da177e4SLinus Torvalds 29741da177e4SLinus Torvalds *res = 1024; 29751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 29761da177e4SLinus Torvalds return -EIO; 29771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 29781da177e4SLinus Torvalds uint64_t maxread; 29791da177e4SLinus Torvalds READ_BUF(8); 29801da177e4SLinus Torvalds READ64(maxread); 29811da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 29821da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 29831da177e4SLinus Torvalds *res = (uint32_t)maxread; 29841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 29851da177e4SLinus Torvalds } 29863110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 29871da177e4SLinus Torvalds return status; 29881da177e4SLinus Torvalds } 29891da177e4SLinus Torvalds 29901da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29911da177e4SLinus Torvalds { 29928687b63aSAl Viro __be32 *p; 29931da177e4SLinus Torvalds int status = 0; 29941da177e4SLinus Torvalds 29951da177e4SLinus Torvalds *res = 1024; 29961da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 29971da177e4SLinus Torvalds return -EIO; 29981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 29991da177e4SLinus Torvalds uint64_t maxwrite; 30001da177e4SLinus Torvalds READ_BUF(8); 30011da177e4SLinus Torvalds READ64(maxwrite); 30021da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 30031da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 30041da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 30051da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 30061da177e4SLinus Torvalds } 30073110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 30081da177e4SLinus Torvalds return status; 30091da177e4SLinus Torvalds } 30101da177e4SLinus Torvalds 3011bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 30121da177e4SLinus Torvalds { 3013bca79478STrond Myklebust uint32_t tmp; 30148687b63aSAl Viro __be32 *p; 3015409924e4STrond Myklebust int ret = 0; 30161da177e4SLinus Torvalds 30171da177e4SLinus Torvalds *mode = 0; 30181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 30191da177e4SLinus Torvalds return -EIO; 30201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 30211da177e4SLinus Torvalds READ_BUF(4); 3022bca79478STrond Myklebust READ32(tmp); 3023bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 30241da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3025409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 30261da177e4SLinus Torvalds } 30273110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3028409924e4STrond Myklebust return ret; 30291da177e4SLinus Torvalds } 30301da177e4SLinus Torvalds 30311da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 30321da177e4SLinus Torvalds { 30338687b63aSAl Viro __be32 *p; 3034409924e4STrond Myklebust int ret = 0; 30351da177e4SLinus Torvalds 30361da177e4SLinus Torvalds *nlink = 1; 30371da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 30381da177e4SLinus Torvalds return -EIO; 30391da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 30401da177e4SLinus Torvalds READ_BUF(4); 30411da177e4SLinus Torvalds READ32(*nlink); 30421da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3043409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 30441da177e4SLinus Torvalds } 30453110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3046409924e4STrond Myklebust return ret; 30471da177e4SLinus Torvalds } 30481da177e4SLinus Torvalds 30492e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 30501da177e4SLinus Torvalds { 30518687b63aSAl Viro uint32_t len; 30528687b63aSAl Viro __be32 *p; 3053409924e4STrond Myklebust int ret = 0; 30541da177e4SLinus Torvalds 30551da177e4SLinus Torvalds *uid = -2; 30561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 30571da177e4SLinus Torvalds return -EIO; 30581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 30591da177e4SLinus Torvalds READ_BUF(4); 30601da177e4SLinus Torvalds READ32(len); 30611da177e4SLinus Torvalds READ_BUF(len); 30621da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3063409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3064409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3065409924e4STrond Myklebust else 30661da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 30673110ff80SHarvey Harrison __func__); 30681da177e4SLinus Torvalds } else 3069fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 30703110ff80SHarvey Harrison __func__, len); 30711da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 30721da177e4SLinus Torvalds } 30733110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3074409924e4STrond Myklebust return ret; 30751da177e4SLinus Torvalds } 30761da177e4SLinus Torvalds 30772e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 30781da177e4SLinus Torvalds { 30798687b63aSAl Viro uint32_t len; 30808687b63aSAl Viro __be32 *p; 3081409924e4STrond Myklebust int ret = 0; 30821da177e4SLinus Torvalds 30831da177e4SLinus Torvalds *gid = -2; 30841da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 30851da177e4SLinus Torvalds return -EIO; 30861da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 30871da177e4SLinus Torvalds READ_BUF(4); 30881da177e4SLinus Torvalds READ32(len); 30891da177e4SLinus Torvalds READ_BUF(len); 30901da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 3091409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3092409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3093409924e4STrond Myklebust else 30941da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 30953110ff80SHarvey Harrison __func__); 30961da177e4SLinus Torvalds } else 3097fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 30983110ff80SHarvey Harrison __func__, len); 30991da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 31001da177e4SLinus Torvalds } 31013110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3102409924e4STrond Myklebust return ret; 31031da177e4SLinus Torvalds } 31041da177e4SLinus Torvalds 31051da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 31061da177e4SLinus Torvalds { 31078687b63aSAl Viro uint32_t major = 0, minor = 0; 31088687b63aSAl Viro __be32 *p; 3109409924e4STrond Myklebust int ret = 0; 31101da177e4SLinus Torvalds 31111da177e4SLinus Torvalds *rdev = MKDEV(0,0); 31121da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 31131da177e4SLinus Torvalds return -EIO; 31141da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 31151da177e4SLinus Torvalds dev_t tmp; 31161da177e4SLinus Torvalds 31171da177e4SLinus Torvalds READ_BUF(8); 31181da177e4SLinus Torvalds READ32(major); 31191da177e4SLinus Torvalds READ32(minor); 31201da177e4SLinus Torvalds tmp = MKDEV(major, minor); 31211da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 31221da177e4SLinus Torvalds *rdev = tmp; 31231da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3124409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 31251da177e4SLinus Torvalds } 31263110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3127409924e4STrond Myklebust return ret; 31281da177e4SLinus Torvalds } 31291da177e4SLinus Torvalds 31301da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31311da177e4SLinus Torvalds { 31328687b63aSAl Viro __be32 *p; 31331da177e4SLinus Torvalds int status = 0; 31341da177e4SLinus Torvalds 31351da177e4SLinus Torvalds *res = 0; 31361da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 31371da177e4SLinus Torvalds return -EIO; 31381da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 31391da177e4SLinus Torvalds READ_BUF(8); 31401da177e4SLinus Torvalds READ64(*res); 31411da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 31421da177e4SLinus Torvalds } 31433110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 31441da177e4SLinus Torvalds return status; 31451da177e4SLinus Torvalds } 31461da177e4SLinus Torvalds 31471da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31481da177e4SLinus Torvalds { 31498687b63aSAl Viro __be32 *p; 31501da177e4SLinus Torvalds int status = 0; 31511da177e4SLinus Torvalds 31521da177e4SLinus Torvalds *res = 0; 31531da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 31541da177e4SLinus Torvalds return -EIO; 31551da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 31561da177e4SLinus Torvalds READ_BUF(8); 31571da177e4SLinus Torvalds READ64(*res); 31581da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 31591da177e4SLinus Torvalds } 31603110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 31611da177e4SLinus Torvalds return status; 31621da177e4SLinus Torvalds } 31631da177e4SLinus Torvalds 31641da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31651da177e4SLinus Torvalds { 31668687b63aSAl Viro __be32 *p; 31671da177e4SLinus Torvalds int status = 0; 31681da177e4SLinus Torvalds 31691da177e4SLinus Torvalds *res = 0; 31701da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 31711da177e4SLinus Torvalds return -EIO; 31721da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 31731da177e4SLinus Torvalds READ_BUF(8); 31741da177e4SLinus Torvalds READ64(*res); 31751da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 31761da177e4SLinus Torvalds } 31773110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 31781da177e4SLinus Torvalds return status; 31791da177e4SLinus Torvalds } 31801da177e4SLinus Torvalds 31811da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 31821da177e4SLinus Torvalds { 31838687b63aSAl Viro __be32 *p; 3184409924e4STrond Myklebust int ret = 0; 31851da177e4SLinus Torvalds 31861da177e4SLinus Torvalds *used = 0; 31871da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 31881da177e4SLinus Torvalds return -EIO; 31891da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 31901da177e4SLinus Torvalds READ_BUF(8); 31911da177e4SLinus Torvalds READ64(*used); 31921da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3193409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 31941da177e4SLinus Torvalds } 31953110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 31961da177e4SLinus Torvalds (unsigned long long)*used); 3197409924e4STrond Myklebust return ret; 31981da177e4SLinus Torvalds } 31991da177e4SLinus Torvalds 32001da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 32011da177e4SLinus Torvalds { 32028687b63aSAl Viro __be32 *p; 32031da177e4SLinus Torvalds uint64_t sec; 32041da177e4SLinus Torvalds uint32_t nsec; 32051da177e4SLinus Torvalds 32061da177e4SLinus Torvalds READ_BUF(12); 32071da177e4SLinus Torvalds READ64(sec); 32081da177e4SLinus Torvalds READ32(nsec); 32091da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 32101da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 32111da177e4SLinus Torvalds return 0; 32121da177e4SLinus Torvalds } 32131da177e4SLinus Torvalds 32141da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32151da177e4SLinus Torvalds { 32161da177e4SLinus Torvalds int status = 0; 32171da177e4SLinus Torvalds 32181da177e4SLinus Torvalds time->tv_sec = 0; 32191da177e4SLinus Torvalds time->tv_nsec = 0; 32201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 32211da177e4SLinus Torvalds return -EIO; 32221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 32231da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3224409924e4STrond Myklebust if (status == 0) 3225409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 32261da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 32271da177e4SLinus Torvalds } 32283110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 32291da177e4SLinus Torvalds return status; 32301da177e4SLinus Torvalds } 32311da177e4SLinus Torvalds 32321da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32331da177e4SLinus Torvalds { 32341da177e4SLinus Torvalds int status = 0; 32351da177e4SLinus Torvalds 32361da177e4SLinus Torvalds time->tv_sec = 0; 32371da177e4SLinus Torvalds time->tv_nsec = 0; 32381da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 32391da177e4SLinus Torvalds return -EIO; 32401da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 32411da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3242409924e4STrond Myklebust if (status == 0) 3243409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 32441da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 32451da177e4SLinus Torvalds } 32463110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 32471da177e4SLinus Torvalds return status; 32481da177e4SLinus Torvalds } 32491da177e4SLinus Torvalds 32501da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 32511da177e4SLinus Torvalds { 32521da177e4SLinus Torvalds int status = 0; 32531da177e4SLinus Torvalds 32541da177e4SLinus Torvalds time->tv_sec = 0; 32551da177e4SLinus Torvalds time->tv_nsec = 0; 32561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 32571da177e4SLinus Torvalds return -EIO; 32581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 32591da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3260409924e4STrond Myklebust if (status == 0) 3261409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 32621da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 32631da177e4SLinus Torvalds } 32643110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 32651da177e4SLinus Torvalds return status; 32661da177e4SLinus Torvalds } 32671da177e4SLinus Torvalds 32688687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 32691da177e4SLinus Torvalds { 32701da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 32711da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 32721da177e4SLinus Torvalds 32731da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3274fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3275fe82a183SChuck Lever "%u %c %u\n", 32763110ff80SHarvey Harrison __func__, 32771da177e4SLinus Torvalds attrwords << 2, 32781da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 32791da177e4SLinus Torvalds nwords << 2); 32801da177e4SLinus Torvalds return -EIO; 32811da177e4SLinus Torvalds } 32821da177e4SLinus Torvalds return 0; 32831da177e4SLinus Torvalds } 32841da177e4SLinus Torvalds 32851da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 32861da177e4SLinus Torvalds { 32878687b63aSAl Viro __be32 *p; 32881da177e4SLinus Torvalds 32891da177e4SLinus Torvalds READ_BUF(20); 32901da177e4SLinus Torvalds READ32(cinfo->atomic); 32911da177e4SLinus Torvalds READ64(cinfo->before); 32921da177e4SLinus Torvalds READ64(cinfo->after); 32931da177e4SLinus Torvalds return 0; 32941da177e4SLinus Torvalds } 32951da177e4SLinus Torvalds 32961da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 32971da177e4SLinus Torvalds { 32988687b63aSAl Viro __be32 *p; 32991da177e4SLinus Torvalds uint32_t supp, acc; 33001da177e4SLinus Torvalds int status; 33011da177e4SLinus Torvalds 33021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 33031da177e4SLinus Torvalds if (status) 33041da177e4SLinus Torvalds return status; 33051da177e4SLinus Torvalds READ_BUF(8); 33061da177e4SLinus Torvalds READ32(supp); 33071da177e4SLinus Torvalds READ32(acc); 33081da177e4SLinus Torvalds access->supported = supp; 33091da177e4SLinus Torvalds access->access = acc; 33101da177e4SLinus Torvalds return 0; 33111da177e4SLinus Torvalds } 33121da177e4SLinus Torvalds 33131da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 33141da177e4SLinus Torvalds { 33158687b63aSAl Viro __be32 *p; 33161da177e4SLinus Torvalds int status; 33171da177e4SLinus Torvalds 33181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3319c1d51931STrond Myklebust if (status != -EIO) 3320c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33211da177e4SLinus Torvalds if (status) 33221da177e4SLinus Torvalds return status; 33238ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33248ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33251da177e4SLinus Torvalds return 0; 33261da177e4SLinus Torvalds } 33271da177e4SLinus Torvalds 33281da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 33291da177e4SLinus Torvalds { 33308687b63aSAl Viro __be32 *p; 33311da177e4SLinus Torvalds int status; 33321da177e4SLinus Torvalds 33331da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 33341da177e4SLinus Torvalds if (status) 33351da177e4SLinus Torvalds return status; 33361da177e4SLinus Torvalds READ_BUF(8); 33371da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 33381da177e4SLinus Torvalds return 0; 33391da177e4SLinus Torvalds } 33401da177e4SLinus Torvalds 33411da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 33421da177e4SLinus Torvalds { 33438687b63aSAl Viro __be32 *p; 33441da177e4SLinus Torvalds uint32_t bmlen; 33451da177e4SLinus Torvalds int status; 33461da177e4SLinus Torvalds 33471da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 33481da177e4SLinus Torvalds if (status) 33491da177e4SLinus Torvalds return status; 33501da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 33511da177e4SLinus Torvalds return status; 33521da177e4SLinus Torvalds READ_BUF(4); 33531da177e4SLinus Torvalds READ32(bmlen); 33541da177e4SLinus Torvalds READ_BUF(bmlen << 2); 33551da177e4SLinus Torvalds return 0; 33561da177e4SLinus Torvalds } 33571da177e4SLinus Torvalds 33581da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 33591da177e4SLinus Torvalds { 33608687b63aSAl Viro __be32 *savep; 33616c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 33621da177e4SLinus Torvalds int status; 33631da177e4SLinus Torvalds 33641da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 33651da177e4SLinus Torvalds goto xdr_error; 33661da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 33671da177e4SLinus Torvalds goto xdr_error; 33681da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 33691da177e4SLinus Torvalds goto xdr_error; 33701da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 33711da177e4SLinus Torvalds goto xdr_error; 33721da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 33731da177e4SLinus Torvalds goto xdr_error; 33741da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 33751da177e4SLinus Torvalds goto xdr_error; 33761da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 33771da177e4SLinus Torvalds goto xdr_error; 33781da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 33791da177e4SLinus Torvalds xdr_error: 33803110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 33811da177e4SLinus Torvalds return status; 33821da177e4SLinus Torvalds } 33831da177e4SLinus Torvalds 33841da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 33851da177e4SLinus Torvalds { 33868687b63aSAl Viro __be32 *savep; 33876c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 33881da177e4SLinus Torvalds int status; 33891da177e4SLinus Torvalds 33901da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 33911da177e4SLinus Torvalds goto xdr_error; 33921da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 33931da177e4SLinus Torvalds goto xdr_error; 33941da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 33951da177e4SLinus Torvalds goto xdr_error; 33961da177e4SLinus Torvalds 33971da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 33981da177e4SLinus Torvalds goto xdr_error; 33991da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 34001da177e4SLinus Torvalds goto xdr_error; 34011da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 34021da177e4SLinus Torvalds goto xdr_error; 34031da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 34041da177e4SLinus Torvalds goto xdr_error; 34051da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 34061da177e4SLinus Torvalds goto xdr_error; 34071da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 34081da177e4SLinus Torvalds goto xdr_error; 34091da177e4SLinus Torvalds 34101da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 34111da177e4SLinus Torvalds xdr_error: 34123110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 34131da177e4SLinus Torvalds return status; 34141da177e4SLinus Torvalds } 34151da177e4SLinus Torvalds 34161da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 34171da177e4SLinus Torvalds { 34188687b63aSAl Viro __be32 *savep; 34196c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 34201da177e4SLinus Torvalds int status; 34211da177e4SLinus Torvalds 34221da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 34231da177e4SLinus Torvalds goto xdr_error; 34241da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 34251da177e4SLinus Torvalds goto xdr_error; 34261da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 34271da177e4SLinus Torvalds goto xdr_error; 34281da177e4SLinus Torvalds 34291da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 34301da177e4SLinus Torvalds goto xdr_error; 34311da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 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_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 34411da177e4SLinus Torvalds { 34428687b63aSAl Viro __be32 *savep; 34431da177e4SLinus Torvalds uint32_t attrlen, 34441da177e4SLinus Torvalds bitmap[2] = {0}, 34451da177e4SLinus Torvalds type; 3446bca79478STrond Myklebust int status; 3447bca79478STrond Myklebust umode_t fmode = 0; 344899baf625SManoj Naik uint64_t fileid; 34491da177e4SLinus Torvalds 3450f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3451f26c7a78STrond Myklebust if (status < 0) 34521da177e4SLinus Torvalds goto xdr_error; 34531da177e4SLinus Torvalds 3454f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3455f26c7a78STrond Myklebust if (status < 0) 3456f26c7a78STrond Myklebust goto xdr_error; 3457f26c7a78STrond Myklebust 3458f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3459f26c7a78STrond Myklebust if (status < 0) 34601da177e4SLinus Torvalds goto xdr_error; 34611da177e4SLinus Torvalds 34621da177e4SLinus Torvalds 3463f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3464f26c7a78STrond Myklebust if (status < 0) 34651da177e4SLinus Torvalds goto xdr_error; 3466409924e4STrond Myklebust fattr->mode = 0; 3467409924e4STrond Myklebust if (status != 0) { 3468409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3469409924e4STrond Myklebust fattr->valid |= status; 3470409924e4STrond Myklebust } 34711da177e4SLinus Torvalds 3472f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3473f26c7a78STrond Myklebust if (status < 0) 34741da177e4SLinus Torvalds goto xdr_error; 3475409924e4STrond Myklebust fattr->valid |= status; 3476f26c7a78STrond Myklebust 3477f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3478f26c7a78STrond Myklebust if (status < 0) 34791da177e4SLinus Torvalds goto xdr_error; 3480409924e4STrond Myklebust fattr->valid |= status; 3481f26c7a78STrond Myklebust 3482f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3483f26c7a78STrond Myklebust if (status < 0) 34841da177e4SLinus Torvalds goto xdr_error; 3485409924e4STrond Myklebust fattr->valid |= status; 3486f26c7a78STrond Myklebust 3487f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3488f26c7a78STrond Myklebust if (status < 0) 34891da177e4SLinus Torvalds goto xdr_error; 3490409924e4STrond Myklebust fattr->valid |= status; 3491f26c7a78STrond Myklebust 3492f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 34937aaa0b3bSManoj Naik struct nfs4_fs_locations, 3494f26c7a78STrond Myklebust fattr)); 3495f26c7a78STrond Myklebust if (status < 0) 3496683b57b4STrond Myklebust goto xdr_error; 3497409924e4STrond Myklebust fattr->valid |= status; 3498f26c7a78STrond Myklebust 3499f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3500f26c7a78STrond Myklebust if (status < 0) 35011da177e4SLinus Torvalds goto xdr_error; 3502409924e4STrond Myklebust if (status != 0) { 35031da177e4SLinus Torvalds fattr->mode |= fmode; 3504409924e4STrond Myklebust fattr->valid |= status; 3505409924e4STrond Myklebust } 3506f26c7a78STrond Myklebust 3507f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3508f26c7a78STrond Myklebust if (status < 0) 35091da177e4SLinus Torvalds goto xdr_error; 3510409924e4STrond Myklebust fattr->valid |= status; 3511f26c7a78STrond Myklebust 3512f26c7a78STrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); 3513f26c7a78STrond Myklebust if (status < 0) 35141da177e4SLinus Torvalds goto xdr_error; 3515409924e4STrond Myklebust fattr->valid |= status; 3516f26c7a78STrond Myklebust 3517f26c7a78STrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); 3518f26c7a78STrond Myklebust if (status < 0) 35191da177e4SLinus Torvalds goto xdr_error; 3520409924e4STrond Myklebust fattr->valid |= status; 3521f26c7a78STrond Myklebust 3522f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3523f26c7a78STrond Myklebust if (status < 0) 35241da177e4SLinus Torvalds goto xdr_error; 3525409924e4STrond Myklebust fattr->valid |= status; 3526f26c7a78STrond Myklebust 3527f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3528f26c7a78STrond Myklebust if (status < 0) 35291da177e4SLinus Torvalds goto xdr_error; 3530409924e4STrond Myklebust fattr->valid |= status; 3531f26c7a78STrond Myklebust 3532f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3533f26c7a78STrond Myklebust if (status < 0) 35341da177e4SLinus Torvalds goto xdr_error; 3535409924e4STrond Myklebust fattr->valid |= status; 3536f26c7a78STrond Myklebust 3537f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3538f26c7a78STrond Myklebust if (status < 0) 35391da177e4SLinus Torvalds goto xdr_error; 3540409924e4STrond Myklebust fattr->valid |= status; 3541f26c7a78STrond Myklebust 3542f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3543f26c7a78STrond Myklebust if (status < 0) 35441da177e4SLinus Torvalds goto xdr_error; 3545409924e4STrond Myklebust fattr->valid |= status; 3546f26c7a78STrond Myklebust 3547f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3548f26c7a78STrond Myklebust if (status < 0) 354999baf625SManoj Naik goto xdr_error; 3550409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 355199baf625SManoj Naik fattr->fileid = fileid; 3552409924e4STrond Myklebust fattr->valid |= status; 3553409924e4STrond Myklebust } 3554f26c7a78STrond Myklebust 3555f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 35561da177e4SLinus Torvalds xdr_error: 35573110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 35581da177e4SLinus Torvalds return status; 35591da177e4SLinus Torvalds } 35601da177e4SLinus Torvalds 35611da177e4SLinus Torvalds 35621da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 35631da177e4SLinus Torvalds { 35648687b63aSAl Viro __be32 *savep; 35651da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 35661da177e4SLinus Torvalds int status; 35671da177e4SLinus Torvalds 35681da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 35691da177e4SLinus Torvalds goto xdr_error; 35701da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 35711da177e4SLinus Torvalds goto xdr_error; 35721da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 35731da177e4SLinus Torvalds goto xdr_error; 35741da177e4SLinus Torvalds 35751da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 35761da177e4SLinus Torvalds 35771da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 35781da177e4SLinus Torvalds goto xdr_error; 35791da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 35801da177e4SLinus Torvalds goto xdr_error; 35811da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 35821da177e4SLinus Torvalds goto xdr_error; 35831da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 35841da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 35851da177e4SLinus Torvalds goto xdr_error; 35861da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 35871da177e4SLinus Torvalds 35881da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 35891da177e4SLinus Torvalds xdr_error: 35903110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 35911da177e4SLinus Torvalds return status; 35921da177e4SLinus Torvalds } 35931da177e4SLinus Torvalds 35941da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 35951da177e4SLinus Torvalds { 35968687b63aSAl Viro __be32 *p; 35971da177e4SLinus Torvalds uint32_t len; 35981da177e4SLinus Torvalds int status; 35991da177e4SLinus Torvalds 36009936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 36019936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 36029936781dSTrond Myklebust 36031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 36041da177e4SLinus Torvalds if (status) 36051da177e4SLinus Torvalds return status; 36061da177e4SLinus Torvalds 36071da177e4SLinus Torvalds READ_BUF(4); 36081da177e4SLinus Torvalds READ32(len); 36091da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 36101da177e4SLinus Torvalds return -EIO; 36111da177e4SLinus Torvalds fh->size = len; 36121da177e4SLinus Torvalds READ_BUF(len); 36131da177e4SLinus Torvalds COPYMEM(fh->data, len); 36141da177e4SLinus Torvalds return 0; 36151da177e4SLinus Torvalds } 36161da177e4SLinus Torvalds 36171da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36181da177e4SLinus Torvalds { 36191da177e4SLinus Torvalds int status; 36201da177e4SLinus Torvalds 36211da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 36221da177e4SLinus Torvalds if (status) 36231da177e4SLinus Torvalds return status; 36241da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 36251da177e4SLinus Torvalds } 36261da177e4SLinus Torvalds 36271da177e4SLinus Torvalds /* 36281da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 36291da177e4SLinus Torvalds */ 3630911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 36311da177e4SLinus Torvalds { 3632911d1aafSTrond Myklebust uint64_t offset, length, clientid; 36338687b63aSAl Viro __be32 *p; 3634911d1aafSTrond Myklebust uint32_t namelen, type; 36351da177e4SLinus Torvalds 36361da177e4SLinus Torvalds READ_BUF(32); 3637911d1aafSTrond Myklebust READ64(offset); 3638911d1aafSTrond Myklebust READ64(length); 3639911d1aafSTrond Myklebust READ32(type); 3640911d1aafSTrond Myklebust if (fl != NULL) { 3641911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3642911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3643911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3644911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3645911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3646911d1aafSTrond Myklebust if (type & 1) 3647911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3648911d1aafSTrond Myklebust fl->fl_pid = 0; 3649911d1aafSTrond Myklebust } 3650911d1aafSTrond Myklebust READ64(clientid); 36511da177e4SLinus Torvalds READ32(namelen); 36521da177e4SLinus Torvalds READ_BUF(namelen); 36531da177e4SLinus Torvalds return -NFS4ERR_DENIED; 36541da177e4SLinus Torvalds } 36551da177e4SLinus Torvalds 3656911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 36571da177e4SLinus Torvalds { 36588687b63aSAl Viro __be32 *p; 36591da177e4SLinus Torvalds int status; 36601da177e4SLinus Torvalds 36611da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3662c1d51931STrond Myklebust if (status == -EIO) 3663c1d51931STrond Myklebust goto out; 36641da177e4SLinus Torvalds if (status == 0) { 36658ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 36668ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 36671da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3668c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3669c1d51931STrond Myklebust if (res->open_seqid != NULL) 3670c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3671c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3672c1d51931STrond Myklebust out: 36731da177e4SLinus Torvalds return status; 36741da177e4SLinus Torvalds } 36751da177e4SLinus Torvalds 3676911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 36771da177e4SLinus Torvalds { 36781da177e4SLinus Torvalds int status; 36791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 36801da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3681911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 36821da177e4SLinus Torvalds return status; 36831da177e4SLinus Torvalds } 36841da177e4SLinus Torvalds 3685911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 36861da177e4SLinus Torvalds { 36878687b63aSAl Viro __be32 *p; 36881da177e4SLinus Torvalds int status; 36891da177e4SLinus Torvalds 36901da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3691c1d51931STrond Myklebust if (status != -EIO) 3692c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 36931da177e4SLinus Torvalds if (status == 0) { 36948ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 36958ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 36961da177e4SLinus Torvalds } 36971da177e4SLinus Torvalds return status; 36981da177e4SLinus Torvalds } 36991da177e4SLinus Torvalds 37001da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 37011da177e4SLinus Torvalds { 37021da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 37031da177e4SLinus Torvalds } 37041da177e4SLinus Torvalds 37051da177e4SLinus Torvalds /* This is too sick! */ 37061da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 37071da177e4SLinus Torvalds { 37088687b63aSAl Viro __be32 *p; 37091da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 37101da177e4SLinus Torvalds 37111da177e4SLinus Torvalds READ_BUF(12); 37121da177e4SLinus Torvalds READ32(limit_type); 37131da177e4SLinus Torvalds switch (limit_type) { 37141da177e4SLinus Torvalds case 1: 37151da177e4SLinus Torvalds READ64(*maxsize); 37161da177e4SLinus Torvalds break; 37171da177e4SLinus Torvalds case 2: 37181da177e4SLinus Torvalds READ32(nblocks); 37191da177e4SLinus Torvalds READ32(blocksize); 37201da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 37211da177e4SLinus Torvalds } 37221da177e4SLinus Torvalds return 0; 37231da177e4SLinus Torvalds } 37241da177e4SLinus Torvalds 37251da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 37261da177e4SLinus Torvalds { 37278687b63aSAl Viro __be32 *p; 37281da177e4SLinus Torvalds uint32_t delegation_type; 37291da177e4SLinus Torvalds 37301da177e4SLinus Torvalds READ_BUF(4); 37311da177e4SLinus Torvalds READ32(delegation_type); 37321da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 37331da177e4SLinus Torvalds res->delegation_type = 0; 37341da177e4SLinus Torvalds return 0; 37351da177e4SLinus Torvalds } 37368ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 37378ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 37381da177e4SLinus Torvalds READ32(res->do_recall); 373905d564feSAndy Adamson 37401da177e4SLinus Torvalds switch (delegation_type) { 37411da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 37421da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 37431da177e4SLinus Torvalds break; 37441da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 37451da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 37461da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 37471da177e4SLinus Torvalds return -EIO; 37481da177e4SLinus Torvalds } 37497539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 37501da177e4SLinus Torvalds } 37511da177e4SLinus Torvalds 37521da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 37531da177e4SLinus Torvalds { 37548687b63aSAl Viro __be32 *p; 3755aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 37561da177e4SLinus Torvalds int status; 37571da177e4SLinus Torvalds 37581da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 3759c1d51931STrond Myklebust if (status != -EIO) 3760c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 37611da177e4SLinus Torvalds if (status) 37621da177e4SLinus Torvalds return status; 37638ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37648ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37651da177e4SLinus Torvalds 37661da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 37671da177e4SLinus Torvalds 37681da177e4SLinus Torvalds READ_BUF(8); 37691da177e4SLinus Torvalds READ32(res->rflags); 37701da177e4SLinus Torvalds READ32(bmlen); 37711da177e4SLinus Torvalds if (bmlen > 10) 37721da177e4SLinus Torvalds goto xdr_error; 37731da177e4SLinus Torvalds 37741da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3775aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3776aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3777aa53ed54SJeff Layton READ32(res->attrset[i]); 3778aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3779aa53ed54SJeff Layton res->attrset[i] = 0; 3780aa53ed54SJeff Layton 37811da177e4SLinus Torvalds return decode_delegation(xdr, res); 37821da177e4SLinus Torvalds xdr_error: 37833110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 37841da177e4SLinus Torvalds return -EIO; 37851da177e4SLinus Torvalds } 37861da177e4SLinus Torvalds 37871da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 37881da177e4SLinus Torvalds { 37898687b63aSAl Viro __be32 *p; 37901da177e4SLinus Torvalds int status; 37911da177e4SLinus Torvalds 37921da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 3793c1d51931STrond Myklebust if (status != -EIO) 3794c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 37951da177e4SLinus Torvalds if (status) 37961da177e4SLinus Torvalds return status; 37978ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 37988ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 37991da177e4SLinus Torvalds return 0; 38001da177e4SLinus Torvalds } 38011da177e4SLinus Torvalds 38021da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 38031da177e4SLinus Torvalds { 38048687b63aSAl Viro __be32 *p; 38051da177e4SLinus Torvalds int status; 38061da177e4SLinus Torvalds 38071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 3808c1d51931STrond Myklebust if (status != -EIO) 3809c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 38101da177e4SLinus Torvalds if (status) 38111da177e4SLinus Torvalds return status; 38128ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 38138ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 38141da177e4SLinus Torvalds return 0; 38151da177e4SLinus Torvalds } 38161da177e4SLinus Torvalds 38171da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 38181da177e4SLinus Torvalds { 38191da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 38201da177e4SLinus Torvalds } 38211da177e4SLinus Torvalds 38221da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 38231da177e4SLinus Torvalds { 38241da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 38251da177e4SLinus Torvalds } 38261da177e4SLinus Torvalds 38271da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 38281da177e4SLinus Torvalds { 38291da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 38308687b63aSAl Viro __be32 *p; 38311da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 38321da177e4SLinus Torvalds int status; 38331da177e4SLinus Torvalds 38341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 38351da177e4SLinus Torvalds if (status) 38361da177e4SLinus Torvalds return status; 38371da177e4SLinus Torvalds READ_BUF(8); 38381da177e4SLinus Torvalds READ32(eof); 38391da177e4SLinus Torvalds READ32(count); 38401da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 38411da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 38421da177e4SLinus Torvalds if (count > recvd) { 3843fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 38441da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 38451da177e4SLinus Torvalds count = recvd; 38461da177e4SLinus Torvalds eof = 0; 38471da177e4SLinus Torvalds } 38481da177e4SLinus Torvalds xdr_read_pages(xdr, count); 38491da177e4SLinus Torvalds res->eof = eof; 38501da177e4SLinus Torvalds res->count = count; 38511da177e4SLinus Torvalds return 0; 38521da177e4SLinus Torvalds } 38531da177e4SLinus Torvalds 38541da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 38551da177e4SLinus Torvalds { 38561da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 38571da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 38581da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3859bcecff77SChuck Lever size_t hdrlen; 3860bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 38618687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 38627bda2cdfSJeff Layton unsigned int nr = 0; 3863bcecff77SChuck Lever int status; 38641da177e4SLinus Torvalds 38651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 38661da177e4SLinus Torvalds if (status) 38671da177e4SLinus Torvalds return status; 38681da177e4SLinus Torvalds READ_BUF(8); 38691da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 387044109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 387144109241SFred Isaman __func__, 3872eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3873eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3874eadf4598STrond Myklebust 38751da177e4SLinus Torvalds 38761da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 38771da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 38781da177e4SLinus Torvalds if (pglen > recvd) 38791da177e4SLinus Torvalds pglen = recvd; 38801da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 38811da177e4SLinus Torvalds 38821da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 38838687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3884e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 38851da177e4SLinus Torvalds entry = p; 38867bda2cdfSJeff Layton 38877bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 38887bda2cdfSJeff Layton if ((entry + 1) > end) 38897bda2cdfSJeff Layton goto short_pkt; 38907bda2cdfSJeff Layton 38917bda2cdfSJeff Layton for (; *p++; nr++) { 3892bcecff77SChuck Lever u32 len, attrlen, xlen; 3893e8896495SDavid Howells if (end - p < 3) 38941da177e4SLinus Torvalds goto short_pkt; 3895eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 38961da177e4SLinus Torvalds p += 2; /* cookie */ 38971da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 38981da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3899fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3900fe82a183SChuck Lever len); 39011da177e4SLinus Torvalds goto err_unmap; 39021da177e4SLinus Torvalds } 3903e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3904e8896495SDavid Howells if (end - p < xlen + 1) 3905e8896495SDavid Howells goto short_pkt; 3906eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3907e8896495SDavid Howells p += xlen; 39081da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3909e8896495SDavid Howells if (end - p < len + 1) 3910e8896495SDavid Howells goto short_pkt; 39111da177e4SLinus Torvalds p += len; 39121da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3913e8896495SDavid Howells if (end - p < attrlen + 2) 39141da177e4SLinus Torvalds goto short_pkt; 3915e8896495SDavid Howells p += attrlen; /* attributes */ 39161da177e4SLinus Torvalds entry = p; 39171da177e4SLinus Torvalds } 39187bda2cdfSJeff Layton /* 39197bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 39207bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 39217bda2cdfSJeff Layton * those, just set the EOF marker. 39227bda2cdfSJeff Layton */ 39237bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 39247bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 39257bda2cdfSJeff Layton entry[1] = 1; 39267bda2cdfSJeff Layton } 39271da177e4SLinus Torvalds out: 39281da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39291da177e4SLinus Torvalds return 0; 39301da177e4SLinus Torvalds short_pkt: 39317bda2cdfSJeff Layton /* 39327bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 39337bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 39347bda2cdfSJeff Layton * response and return what we have so far. If there are no 39357bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 39367bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 39377bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 39387bda2cdfSJeff Layton * readdir starting at the last cookie. 39397bda2cdfSJeff Layton */ 39403110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 39411da177e4SLinus Torvalds entry[0] = entry[1] = 0; 39427bda2cdfSJeff Layton if (nr) 39431da177e4SLinus Torvalds goto out; 39441da177e4SLinus Torvalds err_unmap: 39451da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39461da177e4SLinus Torvalds return -errno_NFSERR_IO; 39471da177e4SLinus Torvalds } 39481da177e4SLinus Torvalds 39491da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 39501da177e4SLinus Torvalds { 39511da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 39521da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3953bcecff77SChuck Lever size_t hdrlen; 3954bcecff77SChuck Lever u32 len, recvd; 39558687b63aSAl Viro __be32 *p; 39561da177e4SLinus Torvalds char *kaddr; 39571da177e4SLinus Torvalds int status; 39581da177e4SLinus Torvalds 39591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 39601da177e4SLinus Torvalds if (status) 39611da177e4SLinus Torvalds return status; 39621da177e4SLinus Torvalds 39631da177e4SLinus Torvalds /* Convert length of symlink */ 39641da177e4SLinus Torvalds READ_BUF(4); 39651da177e4SLinus Torvalds READ32(len); 39661da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3967fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 39681da177e4SLinus Torvalds return -ENAMETOOLONG; 39691da177e4SLinus Torvalds } 39701da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 39711da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 39721da177e4SLinus Torvalds if (recvd < len) { 3973fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 39741da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 39751da177e4SLinus Torvalds return -EIO; 39761da177e4SLinus Torvalds } 39771da177e4SLinus Torvalds xdr_read_pages(xdr, len); 39781da177e4SLinus Torvalds /* 39791da177e4SLinus Torvalds * The XDR encode routine has set things up so that 39801da177e4SLinus Torvalds * the link text will be copied directly into the 39811da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 39821da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 39831da177e4SLinus Torvalds * null-termination). 39841da177e4SLinus Torvalds */ 39851da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 39861da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 39871da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 39881da177e4SLinus Torvalds return 0; 39891da177e4SLinus Torvalds } 39901da177e4SLinus Torvalds 39911da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 39921da177e4SLinus Torvalds { 39931da177e4SLinus Torvalds int status; 39941da177e4SLinus Torvalds 39951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 39961da177e4SLinus Torvalds if (status) 39971da177e4SLinus Torvalds goto out; 39981da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 39991da177e4SLinus Torvalds out: 40001da177e4SLinus Torvalds return status; 40011da177e4SLinus Torvalds } 40021da177e4SLinus Torvalds 40031da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 40041da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 40051da177e4SLinus Torvalds { 40061da177e4SLinus Torvalds int status; 40071da177e4SLinus Torvalds 40081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 40091da177e4SLinus Torvalds if (status) 40101da177e4SLinus Torvalds goto out; 40111da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 40121da177e4SLinus Torvalds goto out; 40131da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 40141da177e4SLinus Torvalds out: 40151da177e4SLinus Torvalds return status; 40161da177e4SLinus Torvalds } 40171da177e4SLinus Torvalds 40181da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 40191da177e4SLinus Torvalds { 40201da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 40211da177e4SLinus Torvalds } 40221da177e4SLinus Torvalds 402356ae19f3STrond Myklebust static int 402456ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 402556ae19f3STrond Myklebust { 402656ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 402756ae19f3STrond Myklebust } 402856ae19f3STrond Myklebust 4029029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4030029d105eSJ. Bruce Fields size_t *acl_len) 4031029d105eSJ. Bruce Fields { 40328687b63aSAl Viro __be32 *savep; 4033029d105eSJ. Bruce Fields uint32_t attrlen, 4034029d105eSJ. Bruce Fields bitmap[2] = {0}; 4035029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4036029d105eSJ. Bruce Fields int status; 4037029d105eSJ. Bruce Fields 4038029d105eSJ. Bruce Fields *acl_len = 0; 4039029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4040029d105eSJ. Bruce Fields goto out; 4041029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4042029d105eSJ. Bruce Fields goto out; 4043029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4044029d105eSJ. Bruce Fields goto out; 4045029d105eSJ. Bruce Fields 4046029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4047029d105eSJ. Bruce Fields return -EIO; 4048029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4049bcecff77SChuck Lever size_t hdrlen; 4050bcecff77SChuck Lever u32 recvd; 4051029d105eSJ. Bruce Fields 4052029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4053029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4054029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4055029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4056029d105eSJ. Bruce Fields if (attrlen > recvd) { 4057fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4058029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4059029d105eSJ. Bruce Fields attrlen, recvd); 4060029d105eSJ. Bruce Fields return -EINVAL; 4061029d105eSJ. Bruce Fields } 4062029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4063029d105eSJ. Bruce Fields *acl_len = attrlen; 40648c233cf9SJ. Bruce Fields } else 40658c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4066029d105eSJ. Bruce Fields 4067029d105eSJ. Bruce Fields out: 4068029d105eSJ. Bruce Fields return status; 4069029d105eSJ. Bruce Fields } 4070029d105eSJ. Bruce Fields 40711da177e4SLinus Torvalds static int 40721da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 40731da177e4SLinus Torvalds { 40741da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 40751da177e4SLinus Torvalds } 40761da177e4SLinus Torvalds 40779e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 40781da177e4SLinus Torvalds { 40798687b63aSAl Viro __be32 *p; 40801da177e4SLinus Torvalds uint32_t bmlen; 40811da177e4SLinus Torvalds int status; 40821da177e4SLinus Torvalds 40831da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 40841da177e4SLinus Torvalds if (status) 40851da177e4SLinus Torvalds return status; 40861da177e4SLinus Torvalds READ_BUF(4); 40871da177e4SLinus Torvalds READ32(bmlen); 40881da177e4SLinus Torvalds READ_BUF(bmlen << 2); 40891da177e4SLinus Torvalds return 0; 40901da177e4SLinus Torvalds } 40911da177e4SLinus Torvalds 4092adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 40931da177e4SLinus Torvalds { 40948687b63aSAl Viro __be32 *p; 40951da177e4SLinus Torvalds uint32_t opnum; 40961da177e4SLinus Torvalds int32_t nfserr; 40971da177e4SLinus Torvalds 40981da177e4SLinus Torvalds READ_BUF(8); 40991da177e4SLinus Torvalds READ32(opnum); 41001da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4101fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 41021da177e4SLinus Torvalds " %d\n", opnum); 41031da177e4SLinus Torvalds return -EIO; 41041da177e4SLinus Torvalds } 41051da177e4SLinus Torvalds READ32(nfserr); 41061da177e4SLinus Torvalds if (nfserr == NFS_OK) { 41078ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 41081da177e4SLinus Torvalds READ64(clp->cl_clientid); 41098ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 41101da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 41111da177e4SLinus Torvalds uint32_t len; 41121da177e4SLinus Torvalds 41131da177e4SLinus Torvalds /* skip netid string */ 41141da177e4SLinus Torvalds READ_BUF(4); 41151da177e4SLinus Torvalds READ32(len); 41161da177e4SLinus Torvalds READ_BUF(len); 41171da177e4SLinus Torvalds 41181da177e4SLinus Torvalds /* skip uaddr string */ 41191da177e4SLinus Torvalds READ_BUF(4); 41201da177e4SLinus Torvalds READ32(len); 41211da177e4SLinus Torvalds READ_BUF(len); 41221da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 41231da177e4SLinus Torvalds } else 4124856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 41251da177e4SLinus Torvalds 41261da177e4SLinus Torvalds return 0; 41271da177e4SLinus Torvalds } 41281da177e4SLinus Torvalds 41291da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 41301da177e4SLinus Torvalds { 41311da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 41321da177e4SLinus Torvalds } 41331da177e4SLinus Torvalds 41341da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 41351da177e4SLinus Torvalds { 41368687b63aSAl Viro __be32 *p; 41371da177e4SLinus Torvalds int status; 41381da177e4SLinus Torvalds 41391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 41401da177e4SLinus Torvalds if (status) 41411da177e4SLinus Torvalds return status; 41421da177e4SLinus Torvalds 41431da177e4SLinus Torvalds READ_BUF(16); 41441da177e4SLinus Torvalds READ32(res->count); 41451da177e4SLinus Torvalds READ32(res->verf->committed); 41461da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 41471da177e4SLinus Torvalds return 0; 41481da177e4SLinus Torvalds } 41491da177e4SLinus Torvalds 41501da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 41511da177e4SLinus Torvalds { 41521da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 41531da177e4SLinus Torvalds } 41541da177e4SLinus Torvalds 415599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 415699fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 415799fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 415899fe60d0SBenny Halevy { 415999fe60d0SBenny Halevy __be32 *p; 416099fe60d0SBenny Halevy uint32_t dummy; 416199fe60d0SBenny Halevy int status; 416299fe60d0SBenny Halevy struct nfs_client *clp = res->client; 416399fe60d0SBenny Halevy 416499fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 416599fe60d0SBenny Halevy if (status) 416699fe60d0SBenny Halevy return status; 416799fe60d0SBenny Halevy 416899fe60d0SBenny Halevy READ_BUF(8); 416999fe60d0SBenny Halevy READ64(clp->cl_ex_clid); 417099fe60d0SBenny Halevy READ_BUF(12); 417199fe60d0SBenny Halevy READ32(clp->cl_seqid); 417299fe60d0SBenny Halevy READ32(clp->cl_exchange_flags); 417399fe60d0SBenny Halevy 417499fe60d0SBenny Halevy /* We ask for SP4_NONE */ 417599fe60d0SBenny Halevy READ32(dummy); 417699fe60d0SBenny Halevy if (dummy != SP4_NONE) 417799fe60d0SBenny Halevy return -EIO; 417899fe60d0SBenny Halevy 417999fe60d0SBenny Halevy /* Throw away minor_id */ 418099fe60d0SBenny Halevy READ_BUF(8); 418199fe60d0SBenny Halevy 418299fe60d0SBenny Halevy /* Throw away Major id */ 418399fe60d0SBenny Halevy READ_BUF(4); 418499fe60d0SBenny Halevy READ32(dummy); 418599fe60d0SBenny Halevy READ_BUF(dummy); 418699fe60d0SBenny Halevy 418799fe60d0SBenny Halevy /* Throw away server_scope */ 418899fe60d0SBenny Halevy READ_BUF(4); 418999fe60d0SBenny Halevy READ32(dummy); 419099fe60d0SBenny Halevy READ_BUF(dummy); 419199fe60d0SBenny Halevy 419299fe60d0SBenny Halevy /* Throw away Implementation id array */ 419399fe60d0SBenny Halevy READ_BUF(4); 419499fe60d0SBenny Halevy READ32(dummy); 419599fe60d0SBenny Halevy READ_BUF(dummy); 419699fe60d0SBenny Halevy 419799fe60d0SBenny Halevy return 0; 419899fe60d0SBenny Halevy } 4199fc931582SAndy Adamson 4200fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4201fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4202fc931582SAndy Adamson { 4203fc931582SAndy Adamson __be32 *p; 4204fc931582SAndy Adamson u32 nr_attrs; 4205fc931582SAndy Adamson 4206fc931582SAndy Adamson READ_BUF(28); 4207fc931582SAndy Adamson READ32(attrs->headerpadsz); 4208fc931582SAndy Adamson READ32(attrs->max_rqst_sz); 4209fc931582SAndy Adamson READ32(attrs->max_resp_sz); 4210fc931582SAndy Adamson READ32(attrs->max_resp_sz_cached); 4211fc931582SAndy Adamson READ32(attrs->max_ops); 4212fc931582SAndy Adamson READ32(attrs->max_reqs); 4213fc931582SAndy Adamson READ32(nr_attrs); 4214fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4215fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4216fc931582SAndy Adamson __func__, nr_attrs); 4217fc931582SAndy Adamson return -EINVAL; 4218fc931582SAndy Adamson } 4219fc931582SAndy Adamson if (nr_attrs == 1) 4220fc931582SAndy Adamson READ_BUF(4); /* skip rdma_attrs */ 4221fc931582SAndy Adamson return 0; 4222fc931582SAndy Adamson } 4223fc931582SAndy Adamson 4224fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4225fc931582SAndy Adamson struct nfs41_create_session_res *res) 4226fc931582SAndy Adamson { 4227fc931582SAndy Adamson __be32 *p; 4228fc931582SAndy Adamson int status; 4229fc931582SAndy Adamson struct nfs_client *clp = res->client; 4230fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4231fc931582SAndy Adamson 4232fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4233fc931582SAndy Adamson 4234fc931582SAndy Adamson if (status) 4235fc931582SAndy Adamson return status; 4236fc931582SAndy Adamson 4237fc931582SAndy Adamson /* sessionid */ 4238fc931582SAndy Adamson READ_BUF(NFS4_MAX_SESSIONID_LEN); 4239fc931582SAndy Adamson COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); 4240fc931582SAndy Adamson 4241fc931582SAndy Adamson /* seqid, flags */ 4242fc931582SAndy Adamson READ_BUF(8); 4243fc931582SAndy Adamson READ32(clp->cl_seqid); 4244fc931582SAndy Adamson READ32(session->flags); 4245fc931582SAndy Adamson 4246fc931582SAndy Adamson /* Channel attributes */ 4247fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4248fc931582SAndy Adamson if (!status) 4249fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4250fc931582SAndy Adamson return status; 4251fc931582SAndy Adamson } 42520f3e66c6SAndy Adamson 42530f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 42540f3e66c6SAndy Adamson { 42550f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 42560f3e66c6SAndy Adamson } 425799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 425899fe60d0SBenny Halevy 42599b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 42609b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 42619b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 42629b7b9fccSAndy Adamson { 42639b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4264fc01cea9SAndy Adamson struct nfs4_slot *slot; 4265fc01cea9SAndy Adamson struct nfs4_sessionid id; 4266fc01cea9SAndy Adamson u32 dummy; 4267fc01cea9SAndy Adamson int status; 4268fc01cea9SAndy Adamson __be32 *p; 4269fc01cea9SAndy Adamson 42709b7b9fccSAndy Adamson if (!res->sr_session) 42719b7b9fccSAndy Adamson return 0; 42729b7b9fccSAndy Adamson 4273fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4274fc01cea9SAndy Adamson if (status) 4275fc01cea9SAndy Adamson goto out_err; 42769b7b9fccSAndy Adamson 4277fc01cea9SAndy Adamson /* 4278fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4279fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4280fc01cea9SAndy Adamson */ 4281fc01cea9SAndy Adamson status = -ESERVERFAULT; 4282fc01cea9SAndy Adamson 4283fc01cea9SAndy Adamson slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; 4284fc01cea9SAndy Adamson READ_BUF(NFS4_MAX_SESSIONID_LEN + 20); 4285fc01cea9SAndy Adamson COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN); 4286fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4287fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4288fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4289fc01cea9SAndy Adamson goto out_err; 4290fc01cea9SAndy Adamson } 4291fc01cea9SAndy Adamson /* seqid */ 4292fc01cea9SAndy Adamson READ32(dummy); 4293fc01cea9SAndy Adamson if (dummy != slot->seq_nr) { 4294fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4295fc01cea9SAndy Adamson goto out_err; 4296fc01cea9SAndy Adamson } 4297fc01cea9SAndy Adamson /* slot id */ 4298fc01cea9SAndy Adamson READ32(dummy); 4299fc01cea9SAndy Adamson if (dummy != res->sr_slotid) { 4300fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4301fc01cea9SAndy Adamson goto out_err; 4302fc01cea9SAndy Adamson } 4303fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 4304fc01cea9SAndy Adamson READ32(dummy); 4305fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 4306fc01cea9SAndy Adamson READ32(dummy); 4307fc01cea9SAndy Adamson /* result flags - currently not processed */ 4308fc01cea9SAndy Adamson READ32(dummy); 4309fc01cea9SAndy Adamson status = 0; 4310fc01cea9SAndy Adamson out_err: 4311fc01cea9SAndy Adamson res->sr_status = status; 4312fc01cea9SAndy Adamson return status; 4313fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 43149b7b9fccSAndy Adamson return 0; 4315fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 43169b7b9fccSAndy Adamson } 43179b7b9fccSAndy Adamson 43181da177e4SLinus Torvalds /* 431949c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 432049c2559eSBenny Halevy */ 432149c2559eSBenny Halevy 432249c2559eSBenny Halevy /* 43231da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 43241da177e4SLinus Torvalds */ 43258687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 43261da177e4SLinus Torvalds { 43271da177e4SLinus Torvalds struct xdr_stream xdr; 43281da177e4SLinus Torvalds struct compound_hdr hdr; 43291da177e4SLinus Torvalds int status; 43301da177e4SLinus Torvalds 43311da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43321da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43331da177e4SLinus Torvalds if (status) 43341da177e4SLinus Torvalds goto out; 43359b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43369b7b9fccSAndy Adamson if (status) 43379b7b9fccSAndy Adamson goto out; 43381da177e4SLinus Torvalds status = decode_putfh(&xdr); 43391da177e4SLinus Torvalds if (status) 43401da177e4SLinus Torvalds goto out; 43411da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4342516a6af6STrond Myklebust if (status != 0) 4343516a6af6STrond Myklebust goto out; 4344516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43451da177e4SLinus Torvalds out: 43461da177e4SLinus Torvalds return status; 43471da177e4SLinus Torvalds } 43481da177e4SLinus Torvalds 43491da177e4SLinus Torvalds /* 43501da177e4SLinus Torvalds * Decode ACCESS response 43511da177e4SLinus Torvalds */ 43528687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 43531da177e4SLinus Torvalds { 43541da177e4SLinus Torvalds struct xdr_stream xdr; 43551da177e4SLinus Torvalds struct compound_hdr hdr; 43561da177e4SLinus Torvalds int status; 43571da177e4SLinus Torvalds 43581da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43599b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 43609b7b9fccSAndy Adamson if (status) 43619b7b9fccSAndy Adamson goto out; 43629b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43639b7b9fccSAndy Adamson if (status) 43641da177e4SLinus Torvalds goto out; 436576b32999STrond Myklebust status = decode_putfh(&xdr); 436676b32999STrond Myklebust if (status != 0) 436776b32999STrond Myklebust goto out; 43681da177e4SLinus Torvalds status = decode_access(&xdr, res); 436976b32999STrond Myklebust if (status != 0) 437076b32999STrond Myklebust goto out; 437176b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43721da177e4SLinus Torvalds out: 43731da177e4SLinus Torvalds return status; 43741da177e4SLinus Torvalds } 43751da177e4SLinus Torvalds 43761da177e4SLinus Torvalds /* 43771da177e4SLinus Torvalds * Decode LOOKUP response 43781da177e4SLinus Torvalds */ 43798687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 43801da177e4SLinus Torvalds { 43811da177e4SLinus Torvalds struct xdr_stream xdr; 43821da177e4SLinus Torvalds struct compound_hdr hdr; 43831da177e4SLinus Torvalds int status; 43841da177e4SLinus Torvalds 43851da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43869b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 43879b7b9fccSAndy Adamson if (status) 43889b7b9fccSAndy Adamson goto out; 43899b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 43909b7b9fccSAndy Adamson if (status) 43911da177e4SLinus Torvalds goto out; 43921da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 43931da177e4SLinus Torvalds goto out; 43941da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 43951da177e4SLinus Torvalds goto out; 43961da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 43971da177e4SLinus Torvalds goto out; 43981da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 43991da177e4SLinus Torvalds out: 44001da177e4SLinus Torvalds return status; 44011da177e4SLinus Torvalds } 44021da177e4SLinus Torvalds 44031da177e4SLinus Torvalds /* 44041da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 44051da177e4SLinus Torvalds */ 44068687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 44071da177e4SLinus Torvalds { 44081da177e4SLinus Torvalds struct xdr_stream xdr; 44091da177e4SLinus Torvalds struct compound_hdr hdr; 44101da177e4SLinus Torvalds int status; 44111da177e4SLinus Torvalds 44121da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44139b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44149b7b9fccSAndy Adamson if (status) 44159b7b9fccSAndy Adamson goto out; 44169b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44179b7b9fccSAndy Adamson if (status) 44181da177e4SLinus Torvalds goto out; 44191da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 44201da177e4SLinus Torvalds goto out; 44211da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 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 REMOVE response 44291da177e4SLinus Torvalds */ 44304fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *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; 444316e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 444416e42959STrond Myklebust goto out; 444516e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 444616e42959STrond Myklebust goto out; 44474fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 44481da177e4SLinus Torvalds out: 44491da177e4SLinus Torvalds return status; 44501da177e4SLinus Torvalds } 44511da177e4SLinus Torvalds 44521da177e4SLinus Torvalds /* 44531da177e4SLinus Torvalds * Decode RENAME response 44541da177e4SLinus Torvalds */ 44558687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 44561da177e4SLinus Torvalds { 44571da177e4SLinus Torvalds struct xdr_stream xdr; 44581da177e4SLinus Torvalds struct compound_hdr hdr; 44591da177e4SLinus Torvalds int status; 44601da177e4SLinus Torvalds 44611da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44629b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44639b7b9fccSAndy Adamson if (status) 44649b7b9fccSAndy Adamson goto out; 44659b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 44669b7b9fccSAndy Adamson if (status) 44671da177e4SLinus Torvalds goto out; 44681da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44691da177e4SLinus Torvalds goto out; 44701da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 44711da177e4SLinus Torvalds goto out; 44721da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44731da177e4SLinus Torvalds goto out; 44746caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 44756caf2c82STrond Myklebust goto out; 44766caf2c82STrond Myklebust /* Current FH is target directory */ 44776caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 44786caf2c82STrond Myklebust goto out; 44796caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 44806caf2c82STrond Myklebust goto out; 44816caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 44821da177e4SLinus Torvalds out: 44831da177e4SLinus Torvalds return status; 44841da177e4SLinus Torvalds } 44851da177e4SLinus Torvalds 44861da177e4SLinus Torvalds /* 44871da177e4SLinus Torvalds * Decode LINK response 44881da177e4SLinus Torvalds */ 44898687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 44901da177e4SLinus Torvalds { 44911da177e4SLinus Torvalds struct xdr_stream xdr; 44921da177e4SLinus Torvalds struct compound_hdr hdr; 44931da177e4SLinus Torvalds int status; 44941da177e4SLinus Torvalds 44951da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44969b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 44979b7b9fccSAndy Adamson if (status) 44989b7b9fccSAndy Adamson goto out; 44999b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45009b7b9fccSAndy Adamson if (status) 45011da177e4SLinus Torvalds goto out; 45021da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45031da177e4SLinus Torvalds goto out; 45041da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 45051da177e4SLinus Torvalds goto out; 45061da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45071da177e4SLinus Torvalds goto out; 450891ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 450991ba2eeeSTrond Myklebust goto out; 451091ba2eeeSTrond Myklebust /* 451191ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 451291ba2eeeSTrond Myklebust * filehandle. 451391ba2eeeSTrond Myklebust */ 451491ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 451591ba2eeeSTrond Myklebust goto out; 451691ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 451791ba2eeeSTrond Myklebust goto out; 451891ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 45191da177e4SLinus Torvalds out: 45201da177e4SLinus Torvalds return status; 45211da177e4SLinus Torvalds } 45221da177e4SLinus Torvalds 45231da177e4SLinus Torvalds /* 45241da177e4SLinus Torvalds * Decode CREATE response 45251da177e4SLinus Torvalds */ 45268687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 45271da177e4SLinus Torvalds { 45281da177e4SLinus Torvalds struct xdr_stream xdr; 45291da177e4SLinus Torvalds struct compound_hdr hdr; 45301da177e4SLinus Torvalds int status; 45311da177e4SLinus Torvalds 45321da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45339b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 45349b7b9fccSAndy Adamson if (status) 45359b7b9fccSAndy Adamson goto out; 45369b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45379b7b9fccSAndy Adamson if (status) 45381da177e4SLinus Torvalds goto out; 45391da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 45401da177e4SLinus Torvalds goto out; 454156ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 454256ae19f3STrond Myklebust goto out; 45431da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 45441da177e4SLinus Torvalds goto out; 45451da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 45461da177e4SLinus Torvalds goto out; 454756ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 454856ae19f3STrond Myklebust goto out; 454956ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 455056ae19f3STrond Myklebust goto out; 455156ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 45521da177e4SLinus Torvalds out: 45531da177e4SLinus Torvalds return status; 45541da177e4SLinus Torvalds } 45551da177e4SLinus Torvalds 45561da177e4SLinus Torvalds /* 45571da177e4SLinus Torvalds * Decode SYMLINK response 45581da177e4SLinus Torvalds */ 45598687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 45601da177e4SLinus Torvalds { 45611da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 45621da177e4SLinus Torvalds } 45631da177e4SLinus Torvalds 45641da177e4SLinus Torvalds /* 45651da177e4SLinus Torvalds * Decode GETATTR response 45661da177e4SLinus Torvalds */ 45678687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 45681da177e4SLinus Torvalds { 45691da177e4SLinus Torvalds struct xdr_stream xdr; 45701da177e4SLinus Torvalds struct compound_hdr hdr; 45711da177e4SLinus Torvalds int status; 45721da177e4SLinus Torvalds 45731da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45741da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 45751da177e4SLinus Torvalds if (status) 45761da177e4SLinus Torvalds goto out; 45779b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 45789b7b9fccSAndy Adamson if (status) 45799b7b9fccSAndy Adamson goto out; 45801da177e4SLinus Torvalds status = decode_putfh(&xdr); 45811da177e4SLinus Torvalds if (status) 45821da177e4SLinus Torvalds goto out; 45831da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 45841da177e4SLinus Torvalds out: 45851da177e4SLinus Torvalds return status; 45861da177e4SLinus Torvalds } 45871da177e4SLinus Torvalds 458823ec6965SJ. Bruce Fields /* 458923ec6965SJ. Bruce Fields * Encode an SETACL request 459023ec6965SJ. Bruce Fields */ 459123ec6965SJ. Bruce Fields static int 45928687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 459323ec6965SJ. Bruce Fields { 459423ec6965SJ. Bruce Fields struct xdr_stream xdr; 459523ec6965SJ. Bruce Fields struct compound_hdr hdr = { 459666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 459723ec6965SJ. Bruce Fields }; 459823ec6965SJ. Bruce Fields int status; 459923ec6965SJ. Bruce Fields 460023ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 46010c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 46029b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 4603cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 4604d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 4605d017931cSAndy Adamson encode_nops(&hdr); 460623ec6965SJ. Bruce Fields return status; 460723ec6965SJ. Bruce Fields } 460805d564feSAndy Adamson 460923ec6965SJ. Bruce Fields /* 461023ec6965SJ. Bruce Fields * Decode SETACL response 461123ec6965SJ. Bruce Fields */ 461223ec6965SJ. Bruce Fields static int 461373c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 461473c403a9SBenny Halevy struct nfs_setaclres *res) 461523ec6965SJ. Bruce Fields { 461623ec6965SJ. Bruce Fields struct xdr_stream xdr; 461723ec6965SJ. Bruce Fields struct compound_hdr hdr; 461823ec6965SJ. Bruce Fields int status; 461923ec6965SJ. Bruce Fields 462023ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 462123ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 462223ec6965SJ. Bruce Fields if (status) 462323ec6965SJ. Bruce Fields goto out; 46249b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46259b7b9fccSAndy Adamson if (status) 46269b7b9fccSAndy Adamson goto out; 462723ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 462823ec6965SJ. Bruce Fields if (status) 462923ec6965SJ. Bruce Fields goto out; 46309e9ecc03SBenny Halevy status = decode_setattr(&xdr); 463123ec6965SJ. Bruce Fields out: 463223ec6965SJ. Bruce Fields return status; 463323ec6965SJ. Bruce Fields } 46341da177e4SLinus Torvalds 46351da177e4SLinus Torvalds /* 4636029d105eSJ. Bruce Fields * Decode GETACL response 4637029d105eSJ. Bruce Fields */ 4638029d105eSJ. Bruce Fields static int 4639663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 4640663c79b3SBenny Halevy struct nfs_getaclres *res) 4641029d105eSJ. Bruce Fields { 4642029d105eSJ. Bruce Fields struct xdr_stream xdr; 4643029d105eSJ. Bruce Fields struct compound_hdr hdr; 4644029d105eSJ. Bruce Fields int status; 4645029d105eSJ. Bruce Fields 4646029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4647029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4648029d105eSJ. Bruce Fields if (status) 4649029d105eSJ. Bruce Fields goto out; 46509b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46519b7b9fccSAndy Adamson if (status) 46529b7b9fccSAndy Adamson goto out; 4653029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4654029d105eSJ. Bruce Fields if (status) 4655029d105eSJ. Bruce Fields goto out; 4656663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 4657029d105eSJ. Bruce Fields 4658029d105eSJ. Bruce Fields out: 4659029d105eSJ. Bruce Fields return status; 4660029d105eSJ. Bruce Fields } 4661029d105eSJ. Bruce Fields 4662029d105eSJ. Bruce Fields /* 46631da177e4SLinus Torvalds * Decode CLOSE response 46641da177e4SLinus Torvalds */ 46658687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 46661da177e4SLinus Torvalds { 46671da177e4SLinus Torvalds struct xdr_stream xdr; 46681da177e4SLinus Torvalds struct compound_hdr hdr; 46691da177e4SLinus Torvalds int status; 46701da177e4SLinus Torvalds 46711da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 46721da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 46731da177e4SLinus Torvalds if (status) 46741da177e4SLinus Torvalds goto out; 46759b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 46769b7b9fccSAndy Adamson if (status) 46779b7b9fccSAndy Adamson goto out; 46781da177e4SLinus Torvalds status = decode_putfh(&xdr); 46791da177e4SLinus Torvalds if (status) 46801da177e4SLinus Torvalds goto out; 46811da177e4SLinus Torvalds status = decode_close(&xdr, res); 4682516a6af6STrond Myklebust if (status != 0) 4683516a6af6STrond Myklebust goto out; 4684516a6af6STrond Myklebust /* 4685516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4686516a6af6STrond Myklebust * in which case the getattr call will fail with 4687516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4688516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4689516a6af6STrond Myklebust */ 4690516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 46911da177e4SLinus Torvalds out: 46921da177e4SLinus Torvalds return status; 46931da177e4SLinus Torvalds } 46941da177e4SLinus Torvalds 46951da177e4SLinus Torvalds /* 46961da177e4SLinus Torvalds * Decode OPEN response 46971da177e4SLinus Torvalds */ 46988687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 46991da177e4SLinus Torvalds { 47001da177e4SLinus Torvalds struct xdr_stream xdr; 47011da177e4SLinus Torvalds struct compound_hdr hdr; 47021da177e4SLinus Torvalds int status; 47031da177e4SLinus Torvalds 47041da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47051da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47061da177e4SLinus Torvalds if (status) 47071da177e4SLinus Torvalds goto out; 47089b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47099b7b9fccSAndy Adamson if (status) 47109b7b9fccSAndy Adamson goto out; 47111da177e4SLinus Torvalds status = decode_putfh(&xdr); 47121da177e4SLinus Torvalds if (status) 47131da177e4SLinus Torvalds goto out; 471456ae19f3STrond Myklebust status = decode_savefh(&xdr); 471556ae19f3STrond Myklebust if (status) 471656ae19f3STrond Myklebust goto out; 47171da177e4SLinus Torvalds status = decode_open(&xdr, res); 47181da177e4SLinus Torvalds if (status) 47191da177e4SLinus Torvalds goto out; 47209936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 47211da177e4SLinus Torvalds goto out; 472256ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 472356ae19f3STrond Myklebust goto out; 4724365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 472556ae19f3STrond Myklebust goto out; 472656ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 47271da177e4SLinus Torvalds out: 47281da177e4SLinus Torvalds return status; 47291da177e4SLinus Torvalds } 47301da177e4SLinus Torvalds 47311da177e4SLinus Torvalds /* 47321da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 47331da177e4SLinus Torvalds */ 47348687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 47351da177e4SLinus Torvalds { 47361da177e4SLinus Torvalds struct xdr_stream xdr; 47371da177e4SLinus Torvalds struct compound_hdr hdr; 47381da177e4SLinus Torvalds int status; 47391da177e4SLinus Torvalds 47401da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47411da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47421da177e4SLinus Torvalds if (status) 47431da177e4SLinus Torvalds goto out; 47441da177e4SLinus Torvalds status = decode_putfh(&xdr); 47451da177e4SLinus Torvalds if (status) 47461da177e4SLinus Torvalds goto out; 47471da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 47481da177e4SLinus Torvalds out: 47491da177e4SLinus Torvalds return status; 47501da177e4SLinus Torvalds } 47511da177e4SLinus Torvalds 47521da177e4SLinus Torvalds /* 47531da177e4SLinus Torvalds * Decode OPEN response 47541da177e4SLinus Torvalds */ 47558687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 47561da177e4SLinus Torvalds { 47571da177e4SLinus Torvalds struct xdr_stream xdr; 47581da177e4SLinus Torvalds struct compound_hdr hdr; 47591da177e4SLinus Torvalds int status; 47601da177e4SLinus Torvalds 47611da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47621da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47631da177e4SLinus Torvalds if (status) 47641da177e4SLinus Torvalds goto out; 47659b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47669b7b9fccSAndy Adamson if (status) 47679b7b9fccSAndy Adamson goto out; 47681da177e4SLinus Torvalds status = decode_putfh(&xdr); 47691da177e4SLinus Torvalds if (status) 47701da177e4SLinus Torvalds goto out; 47711da177e4SLinus Torvalds status = decode_open(&xdr, res); 4772864472e9STrond Myklebust if (status) 4773864472e9STrond Myklebust goto out; 4774864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 47751da177e4SLinus Torvalds out: 47761da177e4SLinus Torvalds return status; 47771da177e4SLinus Torvalds } 47781da177e4SLinus Torvalds 47791da177e4SLinus Torvalds /* 47801da177e4SLinus Torvalds * Decode SETATTR response 47811da177e4SLinus Torvalds */ 47828687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 47831da177e4SLinus Torvalds { 47841da177e4SLinus Torvalds struct xdr_stream xdr; 47851da177e4SLinus Torvalds struct compound_hdr hdr; 47861da177e4SLinus Torvalds int status; 47871da177e4SLinus Torvalds 47881da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47891da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47901da177e4SLinus Torvalds if (status) 47911da177e4SLinus Torvalds goto out; 47929b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47939b7b9fccSAndy Adamson if (status) 47949b7b9fccSAndy Adamson goto out; 47951da177e4SLinus Torvalds status = decode_putfh(&xdr); 47961da177e4SLinus Torvalds if (status) 47971da177e4SLinus Torvalds goto out; 47989e9ecc03SBenny Halevy status = decode_setattr(&xdr); 47991da177e4SLinus Torvalds if (status) 48001da177e4SLinus Torvalds goto out; 480178f945f8STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 48021da177e4SLinus Torvalds out: 48031da177e4SLinus Torvalds return status; 48041da177e4SLinus Torvalds } 48051da177e4SLinus Torvalds 48061da177e4SLinus Torvalds /* 48071da177e4SLinus Torvalds * Decode LOCK response 48081da177e4SLinus Torvalds */ 48098687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 48101da177e4SLinus Torvalds { 48111da177e4SLinus Torvalds struct xdr_stream xdr; 48121da177e4SLinus Torvalds struct compound_hdr hdr; 48131da177e4SLinus Torvalds int status; 48141da177e4SLinus Torvalds 48151da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48161da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48171da177e4SLinus Torvalds if (status) 48181da177e4SLinus Torvalds goto out; 48199b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48209b7b9fccSAndy Adamson if (status) 48219b7b9fccSAndy Adamson goto out; 48221da177e4SLinus Torvalds status = decode_putfh(&xdr); 48231da177e4SLinus Torvalds if (status) 48241da177e4SLinus Torvalds goto out; 48251da177e4SLinus Torvalds status = decode_lock(&xdr, res); 48261da177e4SLinus Torvalds out: 48271da177e4SLinus Torvalds return status; 48281da177e4SLinus Torvalds } 48291da177e4SLinus Torvalds 48301da177e4SLinus Torvalds /* 48311da177e4SLinus Torvalds * Decode LOCKT response 48321da177e4SLinus Torvalds */ 48338687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_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_lockt(&xdr, res); 48501da177e4SLinus Torvalds out: 48511da177e4SLinus Torvalds return status; 48521da177e4SLinus Torvalds } 48531da177e4SLinus Torvalds 48541da177e4SLinus Torvalds /* 48551da177e4SLinus Torvalds * Decode LOCKU response 48561da177e4SLinus Torvalds */ 48578687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_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_locku(&xdr, res); 48741da177e4SLinus Torvalds out: 48751da177e4SLinus Torvalds return status; 48761da177e4SLinus Torvalds } 48771da177e4SLinus Torvalds 48781da177e4SLinus Torvalds /* 48791da177e4SLinus Torvalds * Decode READLINK response 48801da177e4SLinus Torvalds */ 4881f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 4882f50c7000SBenny Halevy struct nfs4_readlink_res *res) 48831da177e4SLinus Torvalds { 48841da177e4SLinus Torvalds struct xdr_stream xdr; 48851da177e4SLinus Torvalds struct compound_hdr hdr; 48861da177e4SLinus Torvalds int status; 48871da177e4SLinus Torvalds 48881da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48891da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 48901da177e4SLinus Torvalds if (status) 48911da177e4SLinus Torvalds goto out; 48929b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48939b7b9fccSAndy Adamson if (status) 48949b7b9fccSAndy Adamson goto out; 48951da177e4SLinus Torvalds status = decode_putfh(&xdr); 48961da177e4SLinus Torvalds if (status) 48971da177e4SLinus Torvalds goto out; 48981da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 48991da177e4SLinus Torvalds out: 49001da177e4SLinus Torvalds return status; 49011da177e4SLinus Torvalds } 49021da177e4SLinus Torvalds 49031da177e4SLinus Torvalds /* 49041da177e4SLinus Torvalds * Decode READDIR response 49051da177e4SLinus Torvalds */ 49068687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_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_readdir(&xdr, rqstp, res); 49231da177e4SLinus Torvalds out: 49241da177e4SLinus Torvalds return status; 49251da177e4SLinus Torvalds } 49261da177e4SLinus Torvalds 49271da177e4SLinus Torvalds /* 49281da177e4SLinus Torvalds * Decode Read response 49291da177e4SLinus Torvalds */ 49308687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *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_read(&xdr, rqstp, res); 49471da177e4SLinus Torvalds if (!status) 49481da177e4SLinus Torvalds status = res->count; 49491da177e4SLinus Torvalds out: 49501da177e4SLinus Torvalds return status; 49511da177e4SLinus Torvalds } 49521da177e4SLinus Torvalds 49531da177e4SLinus Torvalds /* 49541da177e4SLinus Torvalds * Decode WRITE response 49551da177e4SLinus Torvalds */ 49568687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 49571da177e4SLinus Torvalds { 49581da177e4SLinus Torvalds struct xdr_stream xdr; 49591da177e4SLinus Torvalds struct compound_hdr hdr; 49601da177e4SLinus Torvalds int status; 49611da177e4SLinus Torvalds 49621da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49631da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49641da177e4SLinus Torvalds if (status) 49651da177e4SLinus Torvalds goto out; 49669b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49679b7b9fccSAndy Adamson if (status) 49689b7b9fccSAndy Adamson goto out; 49691da177e4SLinus Torvalds status = decode_putfh(&xdr); 49701da177e4SLinus Torvalds if (status) 49711da177e4SLinus Torvalds goto out; 49721da177e4SLinus Torvalds status = decode_write(&xdr, res); 49734f9838c7STrond Myklebust if (status) 49744f9838c7STrond Myklebust goto out; 49754f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 49761da177e4SLinus Torvalds if (!status) 49771da177e4SLinus Torvalds status = res->count; 49781da177e4SLinus Torvalds out: 49791da177e4SLinus Torvalds return status; 49801da177e4SLinus Torvalds } 49811da177e4SLinus Torvalds 49821da177e4SLinus Torvalds /* 49831da177e4SLinus Torvalds * Decode COMMIT response 49841da177e4SLinus Torvalds */ 49858687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 49861da177e4SLinus Torvalds { 49871da177e4SLinus Torvalds struct xdr_stream xdr; 49881da177e4SLinus Torvalds struct compound_hdr hdr; 49891da177e4SLinus Torvalds int status; 49901da177e4SLinus Torvalds 49911da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49921da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49931da177e4SLinus Torvalds if (status) 49941da177e4SLinus Torvalds goto out; 49959b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49969b7b9fccSAndy Adamson if (status) 49979b7b9fccSAndy Adamson goto out; 49981da177e4SLinus Torvalds status = decode_putfh(&xdr); 49991da177e4SLinus Torvalds if (status) 50001da177e4SLinus Torvalds goto out; 50011da177e4SLinus Torvalds status = decode_commit(&xdr, res); 50024f9838c7STrond Myklebust if (status) 50034f9838c7STrond Myklebust goto out; 50044f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 50051da177e4SLinus Torvalds out: 50061da177e4SLinus Torvalds return status; 50071da177e4SLinus Torvalds } 50081da177e4SLinus Torvalds 50091da177e4SLinus Torvalds /* 50101da177e4SLinus Torvalds * FSINFO request 50111da177e4SLinus Torvalds */ 50123dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 50133dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 50141da177e4SLinus Torvalds { 50151da177e4SLinus Torvalds struct xdr_stream xdr; 50161da177e4SLinus Torvalds struct compound_hdr hdr; 50171da177e4SLinus Torvalds int status; 50181da177e4SLinus Torvalds 50191da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50201da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50211da177e4SLinus Torvalds if (!status) 50229b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50239b7b9fccSAndy Adamson if (!status) 50241da177e4SLinus Torvalds status = decode_putfh(&xdr); 50251da177e4SLinus Torvalds if (!status) 50263dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 50271da177e4SLinus Torvalds return status; 50281da177e4SLinus Torvalds } 50291da177e4SLinus Torvalds 50301da177e4SLinus Torvalds /* 50311da177e4SLinus Torvalds * PATHCONF request 50321da177e4SLinus Torvalds */ 5033d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5034d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 50351da177e4SLinus Torvalds { 50361da177e4SLinus Torvalds struct xdr_stream xdr; 50371da177e4SLinus Torvalds struct compound_hdr hdr; 50381da177e4SLinus Torvalds int status; 50391da177e4SLinus Torvalds 50401da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50411da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50421da177e4SLinus Torvalds if (!status) 50439b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50449b7b9fccSAndy Adamson if (!status) 50451da177e4SLinus Torvalds status = decode_putfh(&xdr); 50461da177e4SLinus Torvalds if (!status) 5047d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 50481da177e4SLinus Torvalds return status; 50491da177e4SLinus Torvalds } 50501da177e4SLinus Torvalds 50511da177e4SLinus Torvalds /* 50521da177e4SLinus Torvalds * STATFS request 50531da177e4SLinus Torvalds */ 505424ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 505524ad148aSBenny Halevy struct nfs4_statfs_res *res) 50561da177e4SLinus Torvalds { 50571da177e4SLinus Torvalds struct xdr_stream xdr; 50581da177e4SLinus Torvalds struct compound_hdr hdr; 50591da177e4SLinus Torvalds int status; 50601da177e4SLinus Torvalds 50611da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50621da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50631da177e4SLinus Torvalds if (!status) 50649b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50659b7b9fccSAndy Adamson if (!status) 50661da177e4SLinus Torvalds status = decode_putfh(&xdr); 50671da177e4SLinus Torvalds if (!status) 506824ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 50691da177e4SLinus Torvalds return status; 50701da177e4SLinus Torvalds } 50711da177e4SLinus Torvalds 50721da177e4SLinus Torvalds /* 50731da177e4SLinus Torvalds * GETATTR_BITMAP request 50741da177e4SLinus Torvalds */ 50758687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 50761da177e4SLinus Torvalds { 50771da177e4SLinus Torvalds struct xdr_stream xdr; 50781da177e4SLinus Torvalds struct compound_hdr hdr; 50791da177e4SLinus Torvalds int status; 50801da177e4SLinus Torvalds 50811da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 50829b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 50839b7b9fccSAndy Adamson if (status) 50849b7b9fccSAndy Adamson goto out; 50859b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 50869b7b9fccSAndy Adamson if (status) 50871da177e4SLinus Torvalds goto out; 50881da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 50891da177e4SLinus Torvalds goto out; 50901da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 50911da177e4SLinus Torvalds out: 50921da177e4SLinus Torvalds return status; 50931da177e4SLinus Torvalds } 50941da177e4SLinus Torvalds 50951da177e4SLinus Torvalds /* 50961da177e4SLinus Torvalds * Decode RENEW response 50971da177e4SLinus Torvalds */ 50988687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 50991da177e4SLinus Torvalds { 51001da177e4SLinus Torvalds struct xdr_stream xdr; 51011da177e4SLinus Torvalds struct compound_hdr hdr; 51021da177e4SLinus Torvalds int status; 51031da177e4SLinus Torvalds 51041da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51051da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51061da177e4SLinus Torvalds if (!status) 51071da177e4SLinus Torvalds status = decode_renew(&xdr); 51081da177e4SLinus Torvalds return status; 51091da177e4SLinus Torvalds } 51101da177e4SLinus Torvalds 51111da177e4SLinus Torvalds /* 51121da177e4SLinus Torvalds * a SETCLIENTID request 51131da177e4SLinus Torvalds */ 51148687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5115adfa6f98SDavid Howells struct nfs_client *clp) 51161da177e4SLinus Torvalds { 51171da177e4SLinus Torvalds struct xdr_stream xdr; 51181da177e4SLinus Torvalds struct compound_hdr hdr; 51191da177e4SLinus Torvalds int status; 51201da177e4SLinus Torvalds 51211da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51221da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51231da177e4SLinus Torvalds if (!status) 51241da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 51251da177e4SLinus Torvalds return status; 51261da177e4SLinus Torvalds } 51271da177e4SLinus Torvalds 51281da177e4SLinus Torvalds /* 51291da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 51301da177e4SLinus Torvalds */ 51318687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 51321da177e4SLinus Torvalds { 51331da177e4SLinus Torvalds struct xdr_stream xdr; 51341da177e4SLinus Torvalds struct compound_hdr hdr; 51351da177e4SLinus Torvalds int status; 51361da177e4SLinus Torvalds 51371da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 51381da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51391da177e4SLinus Torvalds if (!status) 51401da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 51411da177e4SLinus Torvalds if (!status) 51421da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 51431da177e4SLinus Torvalds if (!status) 51441da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 51451da177e4SLinus Torvalds return status; 51461da177e4SLinus Torvalds } 51471da177e4SLinus Torvalds 51481da177e4SLinus Torvalds /* 51491da177e4SLinus Torvalds * DELEGRETURN request 51501da177e4SLinus Torvalds */ 51518687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 51521da177e4SLinus Torvalds { 51531da177e4SLinus Torvalds struct xdr_stream xdr; 51541da177e4SLinus Torvalds struct compound_hdr hdr; 51551da177e4SLinus Torvalds int status; 51561da177e4SLinus Torvalds 51571da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51581da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51599b7b9fccSAndy Adamson if (status) 51609b7b9fccSAndy Adamson goto out; 51619b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51629b7b9fccSAndy Adamson if (status) 5163fa178f29STrond Myklebust goto out; 51641da177e4SLinus Torvalds status = decode_putfh(&xdr); 5165fa178f29STrond Myklebust if (status != 0) 5166fa178f29STrond Myklebust goto out; 51671da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5168fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 5169fa178f29STrond Myklebust out: 51701da177e4SLinus Torvalds return status; 51711da177e4SLinus Torvalds } 51721da177e4SLinus Torvalds 5173683b57b4STrond Myklebust /* 5174683b57b4STrond Myklebust * FS_LOCATIONS request 5175683b57b4STrond Myklebust */ 517622958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 517722958463SBenny Halevy struct nfs4_fs_locations_res *res) 5178683b57b4STrond Myklebust { 5179683b57b4STrond Myklebust struct xdr_stream xdr; 5180683b57b4STrond Myklebust struct compound_hdr hdr; 5181683b57b4STrond Myklebust int status; 5182683b57b4STrond Myklebust 5183683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5184683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 51859b7b9fccSAndy Adamson if (status) 51869b7b9fccSAndy Adamson goto out; 51879b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 51889b7b9fccSAndy Adamson if (status) 5189683b57b4STrond Myklebust goto out; 5190683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5191683b57b4STrond Myklebust goto out; 5192683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5193683b57b4STrond Myklebust goto out; 5194683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 519522958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 519622958463SBenny Halevy res->fs_locations->server); 5197683b57b4STrond Myklebust out: 5198683b57b4STrond Myklebust return status; 5199683b57b4STrond Myklebust } 5200683b57b4STrond Myklebust 520199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 520299fe60d0SBenny Halevy /* 520399fe60d0SBenny Halevy * EXCHANGE_ID request 520499fe60d0SBenny Halevy */ 520599fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 520699fe60d0SBenny Halevy void *res) 520799fe60d0SBenny Halevy { 520899fe60d0SBenny Halevy struct xdr_stream xdr; 520999fe60d0SBenny Halevy struct compound_hdr hdr; 521099fe60d0SBenny Halevy int status; 521199fe60d0SBenny Halevy 521299fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 521399fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 521499fe60d0SBenny Halevy if (!status) 521599fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 521699fe60d0SBenny Halevy return status; 521799fe60d0SBenny Halevy } 52182050f0ccSAndy Adamson 52192050f0ccSAndy Adamson /* 5220fc931582SAndy Adamson * a CREATE_SESSION request 5221fc931582SAndy Adamson */ 5222fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5223fc931582SAndy Adamson struct nfs41_create_session_res *res) 5224fc931582SAndy Adamson { 5225fc931582SAndy Adamson struct xdr_stream xdr; 5226fc931582SAndy Adamson struct compound_hdr hdr; 5227fc931582SAndy Adamson int status; 5228fc931582SAndy Adamson 5229fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5230fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5231fc931582SAndy Adamson if (!status) 5232fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5233fc931582SAndy Adamson return status; 5234fc931582SAndy Adamson } 5235fc931582SAndy Adamson 5236fc931582SAndy Adamson /* 52370f3e66c6SAndy Adamson * a DESTROY_SESSION request 52380f3e66c6SAndy Adamson */ 52390f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 52400f3e66c6SAndy Adamson void *dummy) 52410f3e66c6SAndy Adamson { 52420f3e66c6SAndy Adamson struct xdr_stream xdr; 52430f3e66c6SAndy Adamson struct compound_hdr hdr; 52440f3e66c6SAndy Adamson int status; 52450f3e66c6SAndy Adamson 52460f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52470f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 52480f3e66c6SAndy Adamson if (!status) 52490f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 52500f3e66c6SAndy Adamson return status; 52510f3e66c6SAndy Adamson } 52520f3e66c6SAndy Adamson 52530f3e66c6SAndy Adamson /* 5254fc01cea9SAndy Adamson * a SEQUENCE request 5255fc01cea9SAndy Adamson */ 5256fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 5257fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5258fc01cea9SAndy Adamson { 5259fc01cea9SAndy Adamson struct xdr_stream xdr; 5260fc01cea9SAndy Adamson struct compound_hdr hdr; 5261fc01cea9SAndy Adamson int status; 5262fc01cea9SAndy Adamson 5263fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5264fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5265fc01cea9SAndy Adamson if (!status) 5266fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 5267fc01cea9SAndy Adamson return status; 5268fc01cea9SAndy Adamson } 5269fc01cea9SAndy Adamson 5270fc01cea9SAndy Adamson /* 52712050f0ccSAndy Adamson * a GET_LEASE_TIME request 52722050f0ccSAndy Adamson */ 52732050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 52742050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 52752050f0ccSAndy Adamson { 52762050f0ccSAndy Adamson struct xdr_stream xdr; 52772050f0ccSAndy Adamson struct compound_hdr hdr; 52782050f0ccSAndy Adamson int status; 52792050f0ccSAndy Adamson 52802050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52812050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 52822050f0ccSAndy Adamson if (!status) 52832050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 52842050f0ccSAndy Adamson if (!status) 52852050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 52862050f0ccSAndy Adamson if (!status) 52872050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 52882050f0ccSAndy Adamson return status; 52892050f0ccSAndy Adamson } 529099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 529199fe60d0SBenny Halevy 52920dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 52931da177e4SLinus Torvalds { 52941da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 52951da177e4SLinus Torvalds uint32_t len; 52961da177e4SLinus Torvalds 52971da177e4SLinus Torvalds if (!*p++) { 52981da177e4SLinus Torvalds if (!*p) 52991da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 53001da177e4SLinus Torvalds entry->eof = 1; 53011da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 53021da177e4SLinus Torvalds } 53031da177e4SLinus Torvalds 53041da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 53051da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 53061da177e4SLinus Torvalds entry->len = ntohl(*p++); 53071da177e4SLinus Torvalds entry->name = (const char *) p; 53081da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 53091da177e4SLinus Torvalds 53101da177e4SLinus Torvalds /* 53111da177e4SLinus Torvalds * In case the server doesn't return an inode number, 53121da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 53131da177e4SLinus Torvalds * since glibc seems to choke on it...) 53141da177e4SLinus Torvalds */ 53151da177e4SLinus Torvalds entry->ino = 1; 53161da177e4SLinus Torvalds 53171da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 53181da177e4SLinus Torvalds if (len-- > 0) { 53191da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 53201da177e4SLinus Torvalds if (len-- > 0) { 53211da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 53221da177e4SLinus Torvalds p += len; 53231da177e4SLinus Torvalds } 53241da177e4SLinus Torvalds } 53251da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 53261da177e4SLinus Torvalds if (len > 0) { 532797d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 532897d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 532997d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 533097d312d0SManoj Naik p++; 533197d312d0SManoj Naik len--; 533297d312d0SManoj Naik } 53331da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 53341da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 53351da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 53361da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 53371da177e4SLinus Torvalds p += len; 53381da177e4SLinus Torvalds } 53391da177e4SLinus Torvalds 53401da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 53411da177e4SLinus Torvalds return p; 53421da177e4SLinus Torvalds } 53431da177e4SLinus Torvalds 53441da177e4SLinus Torvalds /* 53451da177e4SLinus Torvalds * We need to translate between nfs status return values and 53461da177e4SLinus Torvalds * the local errno values which may not be the same. 53471da177e4SLinus Torvalds */ 53481da177e4SLinus Torvalds static struct { 53491da177e4SLinus Torvalds int stat; 53501da177e4SLinus Torvalds int errno; 53511da177e4SLinus Torvalds } nfs_errtbl[] = { 53521da177e4SLinus Torvalds { NFS4_OK, 0 }, 5353856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5354856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5355856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5356856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5357856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5358856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5359856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5360856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5361856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5362856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5363856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5364856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5365856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5366856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5367856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5368856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5369856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5370856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5371856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5372856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5373856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5374856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5375856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5376856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5377856dff3dSBenny Halevy { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, 5378856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5379856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5380856dff3dSBenny Halevy { NFS4ERR_RESOURCE, -EREMOTEIO }, 5381856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5382856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5383856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5384856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 53851da177e4SLinus Torvalds * to be handled by a 53861da177e4SLinus Torvalds * middle-layer. 53871da177e4SLinus Torvalds */ 5388856dff3dSBenny Halevy { -1, -EIO } 53891da177e4SLinus Torvalds }; 53901da177e4SLinus Torvalds 53911da177e4SLinus Torvalds /* 53921da177e4SLinus Torvalds * Convert an NFS error code to a local one. 53931da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 53941da177e4SLinus Torvalds */ 53951da177e4SLinus Torvalds static int 53960a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 53971da177e4SLinus Torvalds { 53981da177e4SLinus Torvalds int i; 53991da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 54001da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 54011da177e4SLinus Torvalds return nfs_errtbl[i].errno; 54021da177e4SLinus Torvalds } 54031da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 54041da177e4SLinus Torvalds /* The server is looney tunes. */ 5405856dff3dSBenny Halevy return -ESERVERFAULT; 54061da177e4SLinus Torvalds } 54071da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 54081da177e4SLinus Torvalds * handle it. 54091da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 54101da177e4SLinus Torvalds * not conflict with native Linux error codes. 54111da177e4SLinus Torvalds */ 5412856dff3dSBenny Halevy return -stat; 54131da177e4SLinus Torvalds } 54141da177e4SLinus Torvalds 54151da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 54161da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 54171da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 54181da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 54191da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 54202bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 54212bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5422cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5423cc0175c1SChuck Lever .p_name = #proc, \ 54241da177e4SLinus Torvalds } 54251da177e4SLinus Torvalds 54261da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 54271da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 54281da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 54291da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 54301da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 54311da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 54321da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 54331da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 54341da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 54351da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 54361da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 54371da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 54381da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 54391da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 54401da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 54411da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 54421da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 54431da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 54441da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 54451da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 54461da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 54471da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 54481da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 54491da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 54501da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 54511da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 54521da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 54531da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 54541da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 54551da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 54561da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 54571da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5458029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 545923ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5460683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 546199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 546299fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5463fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 54640f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 5465fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 54662050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 546799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 54681da177e4SLinus Torvalds }; 54691da177e4SLinus Torvalds 54701da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 54711da177e4SLinus Torvalds .number = 4, 5472e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 54731da177e4SLinus Torvalds .procs = nfs4_procedures 54741da177e4SLinus Torvalds }; 54751da177e4SLinus Torvalds 54761da177e4SLinus Torvalds /* 54771da177e4SLinus Torvalds * Local variables: 54781da177e4SLinus Torvalds * c-basic-offset: 8 54791da177e4SLinus Torvalds * End: 54801da177e4SLinus Torvalds */ 5481