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) 1131da177e4SLinus Torvalds #define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2) 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 + \ 1191da177e4SLinus Torvalds 4 /*server->ip_addr*/ + \ 1201da177e4SLinus Torvalds 1 /*Netid*/ + \ 1211da177e4SLinus Torvalds 6 /*uaddr*/ + \ 1221da177e4SLinus Torvalds 6 + (NFS4_VERIFIER_SIZE >> 2)) 1231da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1241da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1251da177e4SLinus Torvalds 2 + \ 1261da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1271da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1281da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1291da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1301da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1311da177e4SLinus Torvalds (op_decode_hdr_maxsz) 132e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 133e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1342cebf828STrond Myklebust #define encode_share_access_maxsz \ 1352cebf828STrond Myklebust (2) 1369104a55dSTrond Myklebust #define encode_createmode_maxsz (1 + encode_attrs_maxsz) 1372cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1382cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1392cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1402cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1412cebf828STrond Myklebust open_owner_id_maxsz + \ 1422cebf828STrond Myklebust encode_opentype_maxsz + \ 1432cebf828STrond Myklebust encode_claim_null_maxsz) 1442cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1459104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1462cebf828STrond Myklebust decode_ace_maxsz) 1472cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1482cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1499104a55dSTrond Myklebust decode_stateid_maxsz + \ 1502cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1512cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1522cebf828STrond Myklebust decode_delegation_maxsz) 1539104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1549104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1559104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1569104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1579104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1589104a55dSTrond Myklebust decode_stateid_maxsz) 1599104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1609104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1619104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1629104a55dSTrond Myklebust encode_share_access_maxsz) 1639104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1649104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1659104a55dSTrond Myklebust decode_stateid_maxsz) 1669104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1679104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1689104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1699104a55dSTrond Myklebust decode_stateid_maxsz) 1709104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1719104a55dSTrond Myklebust encode_stateid_maxsz + \ 1729104a55dSTrond Myklebust encode_attrs_maxsz) 1739104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1749104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1759104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1769104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1779104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1789104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1799104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1809104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1819104a55dSTrond Myklebust decode_verifier_maxsz) 1829104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1839104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1849104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1859104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1869104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1879104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1889104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1899104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1909104a55dSTrond Myklebust decode_verifier_maxsz) 1911da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1921da177e4SLinus Torvalds nfs4_name_maxsz) 1931da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1941da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1951da177e4SLinus Torvalds #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) 1961da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 1971da177e4SLinus Torvalds nfs4_name_maxsz) 1981da177e4SLinus Torvalds #define decode_link_maxsz (op_decode_hdr_maxsz + 5) 1999104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2009104a55dSTrond Myklebust 7 + \ 2019104a55dSTrond Myklebust 1 + encode_stateid_maxsz + 8) 2029104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2039104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2049104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2059104a55dSTrond Myklebust decode_lock_denied_maxsz) 2069104a55dSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) 2079104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2089104a55dSTrond Myklebust decode_lock_denied_maxsz) 2099104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2109104a55dSTrond Myklebust encode_stateid_maxsz + \ 2119104a55dSTrond Myklebust 4) 2129104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2139104a55dSTrond Myklebust decode_stateid_maxsz) 2149104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2159104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2161da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2171da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 21894a6d753SChuck Lever 1 + \ 21996928206SJ. Bruce Fields nfs4_fattr_maxsz) 2201da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2211da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2229104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2239104a55dSTrond Myklebust encode_attrs_maxsz) 2242cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2252cebf828STrond Myklebust decode_change_info_maxsz + \ 2262cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2279104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2289104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2291da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2301da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2319104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2329104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2339104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2349104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2359104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2369104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 237e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 238e6889620STrond Myklebust (encode_getattr_maxsz) 239e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 240e6889620STrond Myklebust (0) 2411da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 2421da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 2431da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 2441da177e4SLinus Torvalds encode_putfh_maxsz + \ 2459104a55dSTrond Myklebust encode_read_maxsz) 2461da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 2471da177e4SLinus Torvalds decode_putfh_maxsz + \ 2489104a55dSTrond Myklebust decode_read_maxsz) 2491da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 2501da177e4SLinus Torvalds encode_putfh_maxsz + \ 2519104a55dSTrond Myklebust encode_readlink_maxsz) 2521da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 2531da177e4SLinus Torvalds decode_putfh_maxsz + \ 2549104a55dSTrond Myklebust decode_readlink_maxsz) 2551da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 2561da177e4SLinus Torvalds encode_putfh_maxsz + \ 2579104a55dSTrond Myklebust encode_readdir_maxsz) 2581da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 2591da177e4SLinus Torvalds decode_putfh_maxsz + \ 2609104a55dSTrond Myklebust decode_readdir_maxsz) 2611da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 2621da177e4SLinus Torvalds encode_putfh_maxsz + \ 2639104a55dSTrond Myklebust encode_write_maxsz + \ 2644f9838c7STrond Myklebust encode_getattr_maxsz) 2651da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 2661da177e4SLinus Torvalds decode_putfh_maxsz + \ 2679104a55dSTrond Myklebust decode_write_maxsz + \ 2684f9838c7STrond Myklebust decode_getattr_maxsz) 2691da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 2701da177e4SLinus Torvalds encode_putfh_maxsz + \ 2719104a55dSTrond Myklebust encode_commit_maxsz + \ 2724f9838c7STrond Myklebust encode_getattr_maxsz) 2731da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 2741da177e4SLinus Torvalds decode_putfh_maxsz + \ 2759104a55dSTrond Myklebust decode_commit_maxsz + \ 2764f9838c7STrond Myklebust decode_getattr_maxsz) 2771da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 2781da177e4SLinus Torvalds encode_putfh_maxsz + \ 2792cebf828STrond Myklebust encode_savefh_maxsz + \ 2802cebf828STrond Myklebust encode_open_maxsz + \ 2812cebf828STrond Myklebust encode_getfh_maxsz + \ 2821da177e4SLinus Torvalds encode_getattr_maxsz + \ 2832cebf828STrond Myklebust encode_restorefh_maxsz + \ 2842cebf828STrond Myklebust encode_getattr_maxsz) 2851da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 2861da177e4SLinus Torvalds decode_putfh_maxsz + \ 2872cebf828STrond Myklebust decode_savefh_maxsz + \ 2882cebf828STrond Myklebust decode_open_maxsz + \ 2892cebf828STrond Myklebust decode_getfh_maxsz + \ 2901da177e4SLinus Torvalds decode_getattr_maxsz + \ 2912cebf828STrond Myklebust decode_restorefh_maxsz + \ 2922cebf828STrond Myklebust decode_getattr_maxsz) 2931da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 2941da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 2951da177e4SLinus Torvalds encode_putfh_maxsz + \ 2969104a55dSTrond Myklebust encode_open_confirm_maxsz) 2979104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 2989104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 2991da177e4SLinus Torvalds decode_putfh_maxsz + \ 3009104a55dSTrond Myklebust decode_open_confirm_maxsz) 3011da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3021da177e4SLinus Torvalds encode_putfh_maxsz + \ 3032cebf828STrond Myklebust encode_open_maxsz + \ 3042cebf828STrond Myklebust encode_getattr_maxsz) 3051da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3061da177e4SLinus Torvalds decode_putfh_maxsz + \ 3072cebf828STrond Myklebust decode_open_maxsz + \ 3082cebf828STrond Myklebust decode_getattr_maxsz) 3091da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3101da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3111da177e4SLinus Torvalds encode_putfh_maxsz + \ 3129104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 313516a6af6STrond Myklebust encode_getattr_maxsz) 3141da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 3151da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3161da177e4SLinus Torvalds decode_putfh_maxsz + \ 3179104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 318516a6af6STrond Myklebust decode_getattr_maxsz) 3191da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 3201da177e4SLinus Torvalds encode_putfh_maxsz + \ 3219104a55dSTrond Myklebust encode_close_maxsz + \ 322516a6af6STrond Myklebust encode_getattr_maxsz) 3231da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 3241da177e4SLinus Torvalds decode_putfh_maxsz + \ 3259104a55dSTrond Myklebust decode_close_maxsz + \ 326516a6af6STrond Myklebust decode_getattr_maxsz) 3271da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 3281da177e4SLinus Torvalds encode_putfh_maxsz + \ 3299104a55dSTrond Myklebust encode_setattr_maxsz + \ 3301da177e4SLinus Torvalds encode_getattr_maxsz) 3311da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 3321da177e4SLinus Torvalds decode_putfh_maxsz + \ 3339104a55dSTrond Myklebust decode_setattr_maxsz + \ 3349104a55dSTrond Myklebust decode_getattr_maxsz) 3351da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 3361da177e4SLinus Torvalds encode_putfh_maxsz + \ 3371da177e4SLinus Torvalds encode_fsinfo_maxsz) 3381da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 3391da177e4SLinus Torvalds decode_putfh_maxsz + \ 3401da177e4SLinus Torvalds decode_fsinfo_maxsz) 3411da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 3421da177e4SLinus Torvalds encode_renew_maxsz) 3431da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 3441da177e4SLinus Torvalds decode_renew_maxsz) 3451da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 3461da177e4SLinus Torvalds encode_setclientid_maxsz) 3471da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 3481da177e4SLinus Torvalds decode_setclientid_maxsz) 3491da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 3501da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3511da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 3521da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 3531da177e4SLinus Torvalds encode_fsinfo_maxsz) 3541da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 3551da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3561da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 3571da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 3581da177e4SLinus Torvalds decode_fsinfo_maxsz) 3591da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 3601da177e4SLinus Torvalds encode_putfh_maxsz + \ 3619104a55dSTrond Myklebust encode_lock_maxsz) 3621da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 3631da177e4SLinus Torvalds decode_putfh_maxsz + \ 3649104a55dSTrond Myklebust decode_lock_maxsz) 3651da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 3661da177e4SLinus Torvalds encode_putfh_maxsz + \ 3679104a55dSTrond Myklebust encode_lockt_maxsz) 3689104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 3699104a55dSTrond Myklebust decode_putfh_maxsz + \ 3709104a55dSTrond Myklebust decode_lockt_maxsz) 3711da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 3721da177e4SLinus Torvalds encode_putfh_maxsz + \ 3739104a55dSTrond Myklebust encode_locku_maxsz) 3741da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 3751da177e4SLinus Torvalds decode_putfh_maxsz + \ 3769104a55dSTrond Myklebust decode_locku_maxsz) 3771da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 3781da177e4SLinus Torvalds encode_putfh_maxsz + \ 3799104a55dSTrond Myklebust encode_access_maxsz) 3801da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 3811da177e4SLinus Torvalds decode_putfh_maxsz + \ 3829104a55dSTrond Myklebust decode_access_maxsz) 3831da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 3841da177e4SLinus Torvalds encode_putfh_maxsz + \ 3851da177e4SLinus Torvalds encode_getattr_maxsz) 3861da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 3871da177e4SLinus Torvalds decode_putfh_maxsz + \ 3881da177e4SLinus Torvalds decode_getattr_maxsz) 3891da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 3901da177e4SLinus Torvalds encode_putfh_maxsz + \ 3911da177e4SLinus Torvalds encode_lookup_maxsz + \ 3921da177e4SLinus Torvalds encode_getattr_maxsz + \ 3931da177e4SLinus Torvalds encode_getfh_maxsz) 3941da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 3951da177e4SLinus Torvalds decode_putfh_maxsz + \ 396e6889620STrond Myklebust decode_lookup_maxsz + \ 3971da177e4SLinus Torvalds decode_getattr_maxsz + \ 3981da177e4SLinus Torvalds decode_getfh_maxsz) 3991da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 4001da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4011da177e4SLinus Torvalds encode_getattr_maxsz + \ 4021da177e4SLinus Torvalds encode_getfh_maxsz) 4031da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 4041da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4051da177e4SLinus Torvalds decode_getattr_maxsz + \ 4061da177e4SLinus Torvalds decode_getfh_maxsz) 4071da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 4081da177e4SLinus Torvalds encode_putfh_maxsz + \ 40916e42959STrond Myklebust encode_remove_maxsz + \ 41016e42959STrond Myklebust encode_getattr_maxsz) 4111da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 4121da177e4SLinus Torvalds decode_putfh_maxsz + \ 41316e42959STrond Myklebust op_decode_hdr_maxsz + 5 + \ 41416e42959STrond Myklebust decode_getattr_maxsz) 4151da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 4161da177e4SLinus Torvalds encode_putfh_maxsz + \ 4171da177e4SLinus Torvalds encode_savefh_maxsz + \ 4181da177e4SLinus Torvalds encode_putfh_maxsz + \ 4196caf2c82STrond Myklebust encode_rename_maxsz + \ 4206caf2c82STrond Myklebust encode_getattr_maxsz + \ 4216caf2c82STrond Myklebust encode_restorefh_maxsz + \ 4226caf2c82STrond Myklebust encode_getattr_maxsz) 4231da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 4241da177e4SLinus Torvalds decode_putfh_maxsz + \ 4251da177e4SLinus Torvalds decode_savefh_maxsz + \ 4261da177e4SLinus Torvalds decode_putfh_maxsz + \ 4276caf2c82STrond Myklebust decode_rename_maxsz + \ 4286caf2c82STrond Myklebust decode_getattr_maxsz + \ 4296caf2c82STrond Myklebust decode_restorefh_maxsz + \ 4306caf2c82STrond Myklebust decode_getattr_maxsz) 4311da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 4321da177e4SLinus Torvalds encode_putfh_maxsz + \ 4331da177e4SLinus Torvalds encode_savefh_maxsz + \ 4341da177e4SLinus Torvalds encode_putfh_maxsz + \ 43591ba2eeeSTrond Myklebust encode_link_maxsz + \ 43691ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 43791ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 43891ba2eeeSTrond Myklebust decode_getattr_maxsz) 4391da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 4401da177e4SLinus Torvalds decode_putfh_maxsz + \ 4411da177e4SLinus Torvalds decode_savefh_maxsz + \ 4421da177e4SLinus Torvalds decode_putfh_maxsz + \ 44391ba2eeeSTrond Myklebust decode_link_maxsz + \ 44491ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 44591ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 44691ba2eeeSTrond Myklebust decode_getattr_maxsz) 4471da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 4481da177e4SLinus Torvalds encode_putfh_maxsz + \ 4491da177e4SLinus Torvalds encode_symlink_maxsz + \ 4501da177e4SLinus Torvalds encode_getattr_maxsz + \ 4511da177e4SLinus Torvalds encode_getfh_maxsz) 4521da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 4531da177e4SLinus Torvalds decode_putfh_maxsz + \ 4541da177e4SLinus Torvalds decode_symlink_maxsz + \ 4551da177e4SLinus Torvalds decode_getattr_maxsz + \ 4561da177e4SLinus Torvalds decode_getfh_maxsz) 4571da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 4581da177e4SLinus Torvalds encode_putfh_maxsz + \ 45956ae19f3STrond Myklebust encode_savefh_maxsz + \ 4601da177e4SLinus Torvalds encode_create_maxsz + \ 46156ae19f3STrond Myklebust encode_getfh_maxsz + \ 4621da177e4SLinus Torvalds encode_getattr_maxsz + \ 46356ae19f3STrond Myklebust encode_restorefh_maxsz + \ 46456ae19f3STrond Myklebust encode_getattr_maxsz) 4651da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 4661da177e4SLinus Torvalds decode_putfh_maxsz + \ 46756ae19f3STrond Myklebust decode_savefh_maxsz + \ 4681da177e4SLinus Torvalds decode_create_maxsz + \ 46956ae19f3STrond Myklebust decode_getfh_maxsz + \ 4701da177e4SLinus Torvalds decode_getattr_maxsz + \ 47156ae19f3STrond Myklebust decode_restorefh_maxsz + \ 47256ae19f3STrond Myklebust decode_getattr_maxsz) 4731da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 4741da177e4SLinus Torvalds encode_putfh_maxsz + \ 4751da177e4SLinus Torvalds encode_getattr_maxsz) 4761da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 4771da177e4SLinus Torvalds decode_putfh_maxsz + \ 4781da177e4SLinus Torvalds decode_getattr_maxsz) 4791da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 4801da177e4SLinus Torvalds encode_putfh_maxsz + \ 4819104a55dSTrond Myklebust encode_statfs_maxsz) 4821da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 4831da177e4SLinus Torvalds decode_putfh_maxsz + \ 4849104a55dSTrond Myklebust decode_statfs_maxsz) 4851da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 486ab91f264STrond Myklebust encode_putfh_maxsz + \ 4871da177e4SLinus Torvalds encode_getattr_maxsz) 4881da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 489ab91f264STrond Myklebust decode_putfh_maxsz + \ 4901da177e4SLinus Torvalds decode_getattr_maxsz) 4911da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 4921da177e4SLinus Torvalds encode_putfh_maxsz + \ 493fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 494fa178f29STrond Myklebust encode_getattr_maxsz) 4951da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 496fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 497fa178f29STrond Myklebust decode_getattr_maxsz) 498029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 499029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 5009104a55dSTrond Myklebust encode_getacl_maxsz) 501029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 502029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 5039104a55dSTrond Myklebust decode_getacl_maxsz) 50423ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 50523ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 5069104a55dSTrond Myklebust encode_setacl_maxsz) 50723ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 50823ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 5099104a55dSTrond Myklebust decode_setacl_maxsz) 510683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 511683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 512683b57b4STrond Myklebust encode_putfh_maxsz + \ 513e6889620STrond Myklebust encode_lookup_maxsz + \ 514e6889620STrond Myklebust encode_fs_locations_maxsz) 515683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 516683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 517683b57b4STrond Myklebust decode_putfh_maxsz + \ 518e6889620STrond Myklebust decode_lookup_maxsz + \ 519e6889620STrond Myklebust decode_fs_locations_maxsz) 5201da177e4SLinus Torvalds 5211da177e4SLinus Torvalds static struct { 5221da177e4SLinus Torvalds unsigned int mode; 5231da177e4SLinus Torvalds unsigned int nfs2type; 5241da177e4SLinus Torvalds } nfs_type2fmt[] = { 5251da177e4SLinus Torvalds { 0, NFNON }, 5261da177e4SLinus Torvalds { S_IFREG, NFREG }, 5271da177e4SLinus Torvalds { S_IFDIR, NFDIR }, 5281da177e4SLinus Torvalds { S_IFBLK, NFBLK }, 5291da177e4SLinus Torvalds { S_IFCHR, NFCHR }, 5301da177e4SLinus Torvalds { S_IFLNK, NFLNK }, 5311da177e4SLinus Torvalds { S_IFSOCK, NFSOCK }, 5321da177e4SLinus Torvalds { S_IFIFO, NFFIFO }, 5331da177e4SLinus Torvalds { 0, NFNON }, 5341da177e4SLinus Torvalds { 0, NFNON }, 5351da177e4SLinus Torvalds }; 5361da177e4SLinus Torvalds 5371da177e4SLinus Torvalds struct compound_hdr { 5381da177e4SLinus Torvalds int32_t status; 5391da177e4SLinus Torvalds uint32_t nops; 5401da177e4SLinus Torvalds uint32_t taglen; 5411da177e4SLinus Torvalds char * tag; 5421da177e4SLinus Torvalds }; 5431da177e4SLinus Torvalds 5441da177e4SLinus Torvalds /* 5451da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 5461da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 5471da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 5481da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 5491da177e4SLinus Torvalds * 5501da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 5511da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 5521da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 5531da177e4SLinus Torvalds */ 5541da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 5551da177e4SLinus Torvalds #define WRITE64(n) do { \ 5561da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 5571da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 5581da177e4SLinus Torvalds } while (0) 5591da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 5601da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 5611da177e4SLinus Torvalds } while (0) 5621da177e4SLinus Torvalds 5631da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 5641da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 5651da177e4SLinus Torvalds BUG_ON(!p); \ 5661da177e4SLinus Torvalds } while (0) 5671da177e4SLinus Torvalds 5681da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 5691da177e4SLinus Torvalds { 5708687b63aSAl Viro __be32 *p; 5711da177e4SLinus Torvalds 5721da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 5731da177e4SLinus Torvalds BUG_ON(p == NULL); 5741da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 5751da177e4SLinus Torvalds } 5761da177e4SLinus Torvalds 5771da177e4SLinus Torvalds static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 5781da177e4SLinus Torvalds { 5798687b63aSAl Viro __be32 *p; 5801da177e4SLinus Torvalds 5811da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 5821da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 5831da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 5841da177e4SLinus Torvalds WRITE32(hdr->taglen); 5851da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 5861da177e4SLinus Torvalds WRITE32(NFS4_MINOR_VERSION); 5871da177e4SLinus Torvalds WRITE32(hdr->nops); 5881da177e4SLinus Torvalds return 0; 5891da177e4SLinus Torvalds } 5901da177e4SLinus Torvalds 5911da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 5921da177e4SLinus Torvalds { 5938687b63aSAl Viro __be32 *p; 5941da177e4SLinus Torvalds 5951da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 5961da177e4SLinus Torvalds BUG_ON(p == NULL); 5971da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 5981da177e4SLinus Torvalds } 5991da177e4SLinus Torvalds 6001da177e4SLinus Torvalds static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 6011da177e4SLinus Torvalds { 6021da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 6031da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 6041da177e4SLinus Torvalds int owner_namelen = 0; 6051da177e4SLinus Torvalds int owner_grouplen = 0; 6068687b63aSAl Viro __be32 *p; 6078687b63aSAl Viro __be32 *q; 6081da177e4SLinus Torvalds int len; 6091da177e4SLinus Torvalds uint32_t bmval0 = 0; 6101da177e4SLinus Torvalds uint32_t bmval1 = 0; 6111da177e4SLinus Torvalds int status; 6121da177e4SLinus Torvalds 6131da177e4SLinus Torvalds /* 6141da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 6151da177e4SLinus Torvalds * In the worst-case, this would be 6161da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 6171da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 61823ec6965SJ. Bruce Fields * such as owner/group. 6191da177e4SLinus Torvalds */ 6201da177e4SLinus Torvalds len = 16; 6211da177e4SLinus Torvalds 6221da177e4SLinus Torvalds /* Sigh */ 6231da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 6241da177e4SLinus Torvalds len += 8; 6251da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 6261da177e4SLinus Torvalds len += 4; 6271da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6287539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 6291da177e4SLinus Torvalds if (owner_namelen < 0) { 630fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 6311da177e4SLinus Torvalds iap->ia_uid); 6321da177e4SLinus Torvalds /* XXX */ 6331da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 6341da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 6351da177e4SLinus Torvalds /* goto out; */ 6361da177e4SLinus Torvalds } 6371da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 6381da177e4SLinus Torvalds } 6391da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 6407539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 6411da177e4SLinus Torvalds if (owner_grouplen < 0) { 642fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 6431da177e4SLinus Torvalds iap->ia_gid); 6441da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 6451da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 6461da177e4SLinus Torvalds /* goto out; */ 6471da177e4SLinus Torvalds } 6481da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 6491da177e4SLinus Torvalds } 6501da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 6511da177e4SLinus Torvalds len += 16; 6521da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 6531da177e4SLinus Torvalds len += 4; 6541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 6551da177e4SLinus Torvalds len += 16; 6561da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 6571da177e4SLinus Torvalds len += 4; 6581da177e4SLinus Torvalds RESERVE_SPACE(len); 6591da177e4SLinus Torvalds 6601da177e4SLinus Torvalds /* 6611da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 6621da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 6631da177e4SLinus Torvalds */ 6641da177e4SLinus Torvalds WRITE32(2); 6651da177e4SLinus Torvalds q = p; 6661da177e4SLinus Torvalds p += 3; 6671da177e4SLinus Torvalds 6681da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 6691da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 6701da177e4SLinus Torvalds WRITE64(iap->ia_size); 6711da177e4SLinus Torvalds } 6721da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 6731da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 674cf3fff54STrond Myklebust WRITE32(iap->ia_mode & S_IALLUGO); 6751da177e4SLinus Torvalds } 6761da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6771da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 6781da177e4SLinus Torvalds WRITE32(owner_namelen); 6791da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 6801da177e4SLinus Torvalds } 6811da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 6821da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 6831da177e4SLinus Torvalds WRITE32(owner_grouplen); 6841da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 6851da177e4SLinus Torvalds } 6861da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 6871da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 6881da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 6891da177e4SLinus Torvalds WRITE32(0); 6901da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 6911da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 6921da177e4SLinus Torvalds } 6931da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 6941da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 6951da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 6961da177e4SLinus Torvalds } 6971da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 6981da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 6991da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 7001da177e4SLinus Torvalds WRITE32(0); 7011da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 7021da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 7031da177e4SLinus Torvalds } 7041da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 7051da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 7061da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 7071da177e4SLinus Torvalds } 7081da177e4SLinus Torvalds 7091da177e4SLinus Torvalds /* 7101da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 7111da177e4SLinus Torvalds */ 7121da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 713fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 7141da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 7151da177e4SLinus Torvalds BUG(); 7161da177e4SLinus Torvalds } 7171da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 7181da177e4SLinus Torvalds *q++ = htonl(bmval0); 7191da177e4SLinus Torvalds *q++ = htonl(bmval1); 7201da177e4SLinus Torvalds *q++ = htonl(len); 7211da177e4SLinus Torvalds 7221da177e4SLinus Torvalds status = 0; 7231da177e4SLinus Torvalds /* out: */ 7241da177e4SLinus Torvalds return status; 7251da177e4SLinus Torvalds } 7261da177e4SLinus Torvalds 7271da177e4SLinus Torvalds static int encode_access(struct xdr_stream *xdr, u32 access) 7281da177e4SLinus Torvalds { 7298687b63aSAl Viro __be32 *p; 7301da177e4SLinus Torvalds 7311da177e4SLinus Torvalds RESERVE_SPACE(8); 7321da177e4SLinus Torvalds WRITE32(OP_ACCESS); 7331da177e4SLinus Torvalds WRITE32(access); 7341da177e4SLinus Torvalds 7351da177e4SLinus Torvalds return 0; 7361da177e4SLinus Torvalds } 7371da177e4SLinus Torvalds 7381da177e4SLinus Torvalds static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 7391da177e4SLinus Torvalds { 7408687b63aSAl Viro __be32 *p; 7411da177e4SLinus Torvalds 7428ae20abdSTrond Myklebust RESERVE_SPACE(8+NFS4_STATEID_SIZE); 7431da177e4SLinus Torvalds WRITE32(OP_CLOSE); 744cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 7458ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 7461da177e4SLinus Torvalds 7471da177e4SLinus Torvalds return 0; 7481da177e4SLinus Torvalds } 7491da177e4SLinus Torvalds 7501da177e4SLinus Torvalds static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) 7511da177e4SLinus Torvalds { 7528687b63aSAl Viro __be32 *p; 7531da177e4SLinus Torvalds 7541da177e4SLinus Torvalds RESERVE_SPACE(16); 7551da177e4SLinus Torvalds WRITE32(OP_COMMIT); 7561da177e4SLinus Torvalds WRITE64(args->offset); 7571da177e4SLinus Torvalds WRITE32(args->count); 7581da177e4SLinus Torvalds 7591da177e4SLinus Torvalds return 0; 7601da177e4SLinus Torvalds } 7611da177e4SLinus Torvalds 7621da177e4SLinus Torvalds static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) 7631da177e4SLinus Torvalds { 7648687b63aSAl Viro __be32 *p; 7651da177e4SLinus Torvalds 7661da177e4SLinus Torvalds RESERVE_SPACE(8); 7671da177e4SLinus Torvalds WRITE32(OP_CREATE); 7681da177e4SLinus Torvalds WRITE32(create->ftype); 7691da177e4SLinus Torvalds 7701da177e4SLinus Torvalds switch (create->ftype) { 7711da177e4SLinus Torvalds case NF4LNK: 77294a6d753SChuck Lever RESERVE_SPACE(4); 77394a6d753SChuck Lever WRITE32(create->u.symlink.len); 77494a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 7751da177e4SLinus Torvalds break; 7761da177e4SLinus Torvalds 7771da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 7781da177e4SLinus Torvalds RESERVE_SPACE(8); 7791da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 7801da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 7811da177e4SLinus Torvalds break; 7821da177e4SLinus Torvalds 7831da177e4SLinus Torvalds default: 7841da177e4SLinus Torvalds break; 7851da177e4SLinus Torvalds } 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 7881da177e4SLinus Torvalds WRITE32(create->name->len); 7891da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 7901da177e4SLinus Torvalds 7911da177e4SLinus Torvalds return encode_attrs(xdr, create->attrs, create->server); 7921da177e4SLinus Torvalds } 7931da177e4SLinus Torvalds 7941da177e4SLinus Torvalds static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) 7951da177e4SLinus Torvalds { 7968687b63aSAl Viro __be32 *p; 7971da177e4SLinus Torvalds 7981da177e4SLinus Torvalds RESERVE_SPACE(12); 7991da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8001da177e4SLinus Torvalds WRITE32(1); 8011da177e4SLinus Torvalds WRITE32(bitmap); 8021da177e4SLinus Torvalds return 0; 8031da177e4SLinus Torvalds } 8041da177e4SLinus Torvalds 8051da177e4SLinus Torvalds static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) 8061da177e4SLinus Torvalds { 8078687b63aSAl Viro __be32 *p; 8081da177e4SLinus Torvalds 8091da177e4SLinus Torvalds RESERVE_SPACE(16); 8101da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8111da177e4SLinus Torvalds WRITE32(2); 8121da177e4SLinus Torvalds WRITE32(bm0); 8131da177e4SLinus Torvalds WRITE32(bm1); 8141da177e4SLinus Torvalds return 0; 8151da177e4SLinus Torvalds } 8161da177e4SLinus Torvalds 8171da177e4SLinus Torvalds static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) 8181da177e4SLinus Torvalds { 8191da177e4SLinus Torvalds return encode_getattr_two(xdr, 8201da177e4SLinus Torvalds bitmask[0] & nfs4_fattr_bitmap[0], 8211da177e4SLinus Torvalds bitmask[1] & nfs4_fattr_bitmap[1]); 8221da177e4SLinus Torvalds } 8231da177e4SLinus Torvalds 8241da177e4SLinus Torvalds static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) 8251da177e4SLinus Torvalds { 8261da177e4SLinus Torvalds return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 8271da177e4SLinus Torvalds bitmask[1] & nfs4_fsinfo_bitmap[1]); 8281da177e4SLinus Torvalds } 8291da177e4SLinus Torvalds 830830b8e33SManoj Naik static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask) 831830b8e33SManoj Naik { 832830b8e33SManoj Naik return encode_getattr_two(xdr, 833830b8e33SManoj Naik bitmask[0] & nfs4_fs_locations_bitmap[0], 834830b8e33SManoj Naik bitmask[1] & nfs4_fs_locations_bitmap[1]); 835830b8e33SManoj Naik } 836830b8e33SManoj Naik 8371da177e4SLinus Torvalds static int encode_getfh(struct xdr_stream *xdr) 8381da177e4SLinus Torvalds { 8398687b63aSAl Viro __be32 *p; 8401da177e4SLinus Torvalds 8411da177e4SLinus Torvalds RESERVE_SPACE(4); 8421da177e4SLinus Torvalds WRITE32(OP_GETFH); 8431da177e4SLinus Torvalds 8441da177e4SLinus Torvalds return 0; 8451da177e4SLinus Torvalds } 8461da177e4SLinus Torvalds 8471da177e4SLinus Torvalds static int encode_link(struct xdr_stream *xdr, const struct qstr *name) 8481da177e4SLinus Torvalds { 8498687b63aSAl Viro __be32 *p; 8501da177e4SLinus Torvalds 8511da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 8521da177e4SLinus Torvalds WRITE32(OP_LINK); 8531da177e4SLinus Torvalds WRITE32(name->len); 8541da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 8551da177e4SLinus Torvalds 8561da177e4SLinus Torvalds return 0; 8571da177e4SLinus Torvalds } 8581da177e4SLinus Torvalds 859911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 860911d1aafSTrond Myklebust { 861911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 862911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 863911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 864911d1aafSTrond Myklebust } 865911d1aafSTrond Myklebust 866911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 867911d1aafSTrond Myklebust { 868911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 869911d1aafSTrond Myklebust return ~(uint64_t)0; 870911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 871911d1aafSTrond Myklebust } 872911d1aafSTrond Myklebust 8731da177e4SLinus Torvalds /* 8741da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 8751da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 8761da177e4SLinus Torvalds */ 877911d1aafSTrond Myklebust static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args) 8781da177e4SLinus Torvalds { 8798687b63aSAl Viro __be32 *p; 8801da177e4SLinus Torvalds 8811da177e4SLinus Torvalds RESERVE_SPACE(32); 8821da177e4SLinus Torvalds WRITE32(OP_LOCK); 883911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, args->block)); 884911d1aafSTrond Myklebust WRITE32(args->reclaim); 885911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 886911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 887911d1aafSTrond Myklebust WRITE32(args->new_lock_owner); 888911d1aafSTrond Myklebust if (args->new_lock_owner){ 8899f958ab8STrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 890911d1aafSTrond Myklebust WRITE32(args->open_seqid->sequence->counter); 8918ae20abdSTrond Myklebust WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 892911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 893911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 8949f958ab8STrond Myklebust WRITE32(16); 8959f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 8969f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 8971da177e4SLinus Torvalds } 8981da177e4SLinus Torvalds else { 8998ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE+4); 9008ae20abdSTrond Myklebust WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 901911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 9021da177e4SLinus Torvalds } 9031da177e4SLinus Torvalds 9041da177e4SLinus Torvalds return 0; 9051da177e4SLinus Torvalds } 9061da177e4SLinus Torvalds 907911d1aafSTrond Myklebust static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args) 9081da177e4SLinus Torvalds { 9098687b63aSAl Viro __be32 *p; 9101da177e4SLinus Torvalds 9119f958ab8STrond Myklebust RESERVE_SPACE(52); 9121da177e4SLinus Torvalds WRITE32(OP_LOCKT); 913911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 914911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 915911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 916911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 9179f958ab8STrond Myklebust WRITE32(16); 9189f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 9199f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 9201da177e4SLinus Torvalds 9211da177e4SLinus Torvalds return 0; 9221da177e4SLinus Torvalds } 9231da177e4SLinus Torvalds 924911d1aafSTrond Myklebust static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args) 9251da177e4SLinus Torvalds { 9268687b63aSAl Viro __be32 *p; 9271da177e4SLinus Torvalds 9288ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 9291da177e4SLinus Torvalds WRITE32(OP_LOCKU); 930911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 931911d1aafSTrond Myklebust WRITE32(args->seqid->sequence->counter); 9328ae20abdSTrond Myklebust WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 933911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 934911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 9351da177e4SLinus Torvalds 9361da177e4SLinus Torvalds return 0; 9371da177e4SLinus Torvalds } 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) 9401da177e4SLinus Torvalds { 9411da177e4SLinus Torvalds int len = name->len; 9428687b63aSAl Viro __be32 *p; 9431da177e4SLinus Torvalds 9441da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 9451da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 9461da177e4SLinus Torvalds WRITE32(len); 9471da177e4SLinus Torvalds WRITEMEM(name->name, len); 9481da177e4SLinus Torvalds 9491da177e4SLinus Torvalds return 0; 9501da177e4SLinus Torvalds } 9511da177e4SLinus Torvalds 9521da177e4SLinus Torvalds static void encode_share_access(struct xdr_stream *xdr, int open_flags) 9531da177e4SLinus Torvalds { 9548687b63aSAl Viro __be32 *p; 9551da177e4SLinus Torvalds 9561da177e4SLinus Torvalds RESERVE_SPACE(8); 9571da177e4SLinus Torvalds switch (open_flags & (FMODE_READ|FMODE_WRITE)) { 9581da177e4SLinus Torvalds case FMODE_READ: 9591da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 9601da177e4SLinus Torvalds break; 9611da177e4SLinus Torvalds case FMODE_WRITE: 9621da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 9631da177e4SLinus Torvalds break; 9641da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 9651da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 9661da177e4SLinus Torvalds break; 9671da177e4SLinus Torvalds default: 9681da177e4SLinus Torvalds BUG(); 9691da177e4SLinus Torvalds } 9701da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 9711da177e4SLinus Torvalds } 9721da177e4SLinus Torvalds 9731da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9741da177e4SLinus Torvalds { 9758687b63aSAl Viro __be32 *p; 9761da177e4SLinus Torvalds /* 9771da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 9781da177e4SLinus Torvalds * owner 4 = 32 9791da177e4SLinus Torvalds */ 9801da177e4SLinus Torvalds RESERVE_SPACE(8); 9811da177e4SLinus Torvalds WRITE32(OP_OPEN); 982cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 9831da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 9849f958ab8STrond Myklebust RESERVE_SPACE(28); 9851da177e4SLinus Torvalds WRITE64(arg->clientid); 9869f958ab8STrond Myklebust WRITE32(16); 9879f958ab8STrond Myklebust WRITEMEM("open id:", 8); 9889f958ab8STrond Myklebust WRITE64(arg->id); 9891da177e4SLinus Torvalds } 9901da177e4SLinus Torvalds 9911da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9921da177e4SLinus Torvalds { 9938687b63aSAl Viro __be32 *p; 9941da177e4SLinus Torvalds 9951da177e4SLinus Torvalds RESERVE_SPACE(4); 9961da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 9971da177e4SLinus Torvalds case 0: 9981da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 9991da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 10001da177e4SLinus Torvalds break; 10011da177e4SLinus Torvalds default: 10021da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 10031da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 10041da177e4SLinus Torvalds } 10051da177e4SLinus Torvalds } 10061da177e4SLinus Torvalds 10071da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 10081da177e4SLinus Torvalds { 10098687b63aSAl Viro __be32 *p; 10101da177e4SLinus Torvalds 10111da177e4SLinus Torvalds RESERVE_SPACE(4); 10121da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 10131da177e4SLinus Torvalds case 0: 10141da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 10151da177e4SLinus Torvalds break; 10161da177e4SLinus Torvalds default: 10171da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 10181da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 10191da177e4SLinus Torvalds encode_createmode(xdr, arg); 10201da177e4SLinus Torvalds } 10211da177e4SLinus Torvalds } 10221da177e4SLinus Torvalds 10231da177e4SLinus Torvalds static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) 10241da177e4SLinus Torvalds { 10258687b63aSAl Viro __be32 *p; 10261da177e4SLinus Torvalds 10271da177e4SLinus Torvalds RESERVE_SPACE(4); 10281da177e4SLinus Torvalds switch (delegation_type) { 10291da177e4SLinus Torvalds case 0: 10301da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 10311da177e4SLinus Torvalds break; 10321da177e4SLinus Torvalds case FMODE_READ: 10331da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 10341da177e4SLinus Torvalds break; 10351da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 10361da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 10371da177e4SLinus Torvalds break; 10381da177e4SLinus Torvalds default: 10391da177e4SLinus Torvalds BUG(); 10401da177e4SLinus Torvalds } 10411da177e4SLinus Torvalds } 10421da177e4SLinus Torvalds 10431da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 10441da177e4SLinus Torvalds { 10458687b63aSAl Viro __be32 *p; 10461da177e4SLinus Torvalds 10471da177e4SLinus Torvalds RESERVE_SPACE(4); 10481da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 10491da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10501da177e4SLinus Torvalds } 10511da177e4SLinus Torvalds 10521da177e4SLinus Torvalds static inline void encode_claim_previous(struct xdr_stream *xdr, int type) 10531da177e4SLinus Torvalds { 10548687b63aSAl Viro __be32 *p; 10551da177e4SLinus Torvalds 10561da177e4SLinus Torvalds RESERVE_SPACE(4); 10571da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 10581da177e4SLinus Torvalds encode_delegation_type(xdr, type); 10591da177e4SLinus Torvalds } 10601da177e4SLinus Torvalds 10611da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 10621da177e4SLinus Torvalds { 10638687b63aSAl Viro __be32 *p; 10641da177e4SLinus Torvalds 10658ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 10661da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 10678ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 10681da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10691da177e4SLinus Torvalds } 10701da177e4SLinus Torvalds 10711da177e4SLinus Torvalds static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) 10721da177e4SLinus Torvalds { 10731da177e4SLinus Torvalds encode_openhdr(xdr, arg); 10741da177e4SLinus Torvalds encode_opentype(xdr, arg); 10751da177e4SLinus Torvalds switch (arg->claim) { 10761da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 10771da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 10781da177e4SLinus Torvalds break; 10791da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 10801da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 10811da177e4SLinus Torvalds break; 10821da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 10831da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 10841da177e4SLinus Torvalds break; 10851da177e4SLinus Torvalds default: 10861da177e4SLinus Torvalds BUG(); 10871da177e4SLinus Torvalds } 10881da177e4SLinus Torvalds return 0; 10891da177e4SLinus Torvalds } 10901da177e4SLinus Torvalds 10911da177e4SLinus Torvalds static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) 10921da177e4SLinus Torvalds { 10938687b63aSAl Viro __be32 *p; 10941da177e4SLinus Torvalds 10958ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 10961da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 10978ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1098cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 10991da177e4SLinus Torvalds 11001da177e4SLinus Torvalds return 0; 11011da177e4SLinus Torvalds } 11021da177e4SLinus Torvalds 11031da177e4SLinus Torvalds static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 11041da177e4SLinus Torvalds { 11058687b63aSAl Viro __be32 *p; 11061da177e4SLinus Torvalds 11078ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 11081da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 11098ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1110cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 11111da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 11121da177e4SLinus Torvalds return 0; 11131da177e4SLinus Torvalds } 11141da177e4SLinus Torvalds 11151da177e4SLinus Torvalds static int 11161da177e4SLinus Torvalds encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) 11171da177e4SLinus Torvalds { 11181da177e4SLinus Torvalds int len = fh->size; 11198687b63aSAl Viro __be32 *p; 11201da177e4SLinus Torvalds 11211da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 11221da177e4SLinus Torvalds WRITE32(OP_PUTFH); 11231da177e4SLinus Torvalds WRITE32(len); 11241da177e4SLinus Torvalds WRITEMEM(fh->data, len); 11251da177e4SLinus Torvalds 11261da177e4SLinus Torvalds return 0; 11271da177e4SLinus Torvalds } 11281da177e4SLinus Torvalds 11291da177e4SLinus Torvalds static int encode_putrootfh(struct xdr_stream *xdr) 11301da177e4SLinus Torvalds { 11318687b63aSAl Viro __be32 *p; 11321da177e4SLinus Torvalds 11331da177e4SLinus Torvalds RESERVE_SPACE(4); 11341da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 11351da177e4SLinus Torvalds 11361da177e4SLinus Torvalds return 0; 11371da177e4SLinus Torvalds } 11381da177e4SLinus Torvalds 11391da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 11401da177e4SLinus Torvalds { 11411da177e4SLinus Torvalds nfs4_stateid stateid; 11428687b63aSAl Viro __be32 *p; 11431da177e4SLinus Torvalds 11448ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE); 11451da177e4SLinus Torvalds if (ctx->state != NULL) { 11461da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 11478ae20abdSTrond Myklebust WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 11481da177e4SLinus Torvalds } else 11498ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 11501da177e4SLinus Torvalds } 11511da177e4SLinus Torvalds 11521da177e4SLinus Torvalds static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) 11531da177e4SLinus Torvalds { 11548687b63aSAl Viro __be32 *p; 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds RESERVE_SPACE(4); 11571da177e4SLinus Torvalds WRITE32(OP_READ); 11581da177e4SLinus Torvalds 11591da177e4SLinus Torvalds encode_stateid(xdr, args->context); 11601da177e4SLinus Torvalds 11611da177e4SLinus Torvalds RESERVE_SPACE(12); 11621da177e4SLinus Torvalds WRITE64(args->offset); 11631da177e4SLinus Torvalds WRITE32(args->count); 11641da177e4SLinus Torvalds 11651da177e4SLinus Torvalds return 0; 11661da177e4SLinus Torvalds } 11671da177e4SLinus Torvalds 11681da177e4SLinus Torvalds static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) 11691da177e4SLinus Torvalds { 117097d312d0SManoj Naik uint32_t attrs[2] = { 117197d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 117297d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 117397d312d0SManoj Naik }; 11748687b63aSAl Viro __be32 *p; 11751da177e4SLinus Torvalds 11768ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 11771da177e4SLinus Torvalds WRITE32(OP_READDIR); 11781da177e4SLinus Torvalds WRITE64(readdir->cookie); 11798ae20abdSTrond Myklebust WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 11801da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 11811da177e4SLinus Torvalds WRITE32(readdir->count); 11821da177e4SLinus Torvalds WRITE32(2); 118397d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 118497d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 118597d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 118697d312d0SManoj Naik else 118797d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 118897d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 118997d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1190eadf4598STrond Myklebust dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", 1191eadf4598STrond Myklebust __FUNCTION__, 1192eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1193eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1194eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1195eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1196eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 11971da177e4SLinus Torvalds 11981da177e4SLinus Torvalds return 0; 11991da177e4SLinus Torvalds } 12001da177e4SLinus Torvalds 12011da177e4SLinus Torvalds static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) 12021da177e4SLinus Torvalds { 12038687b63aSAl Viro __be32 *p; 12041da177e4SLinus Torvalds 12051da177e4SLinus Torvalds RESERVE_SPACE(4); 12061da177e4SLinus Torvalds WRITE32(OP_READLINK); 12071da177e4SLinus Torvalds 12081da177e4SLinus Torvalds return 0; 12091da177e4SLinus Torvalds } 12101da177e4SLinus Torvalds 12111da177e4SLinus Torvalds static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) 12121da177e4SLinus Torvalds { 12138687b63aSAl Viro __be32 *p; 12141da177e4SLinus Torvalds 12151da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 12161da177e4SLinus Torvalds WRITE32(OP_REMOVE); 12171da177e4SLinus Torvalds WRITE32(name->len); 12181da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 12191da177e4SLinus Torvalds 12201da177e4SLinus Torvalds return 0; 12211da177e4SLinus Torvalds } 12221da177e4SLinus Torvalds 12231da177e4SLinus Torvalds static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) 12241da177e4SLinus Torvalds { 12258687b63aSAl Viro __be32 *p; 12261da177e4SLinus Torvalds 12271da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 12281da177e4SLinus Torvalds WRITE32(OP_RENAME); 12291da177e4SLinus Torvalds WRITE32(oldname->len); 12301da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 12311da177e4SLinus Torvalds 12321da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 12331da177e4SLinus Torvalds WRITE32(newname->len); 12341da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 12351da177e4SLinus Torvalds 12361da177e4SLinus Torvalds return 0; 12371da177e4SLinus Torvalds } 12381da177e4SLinus Torvalds 1239adfa6f98SDavid Howells static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid) 12401da177e4SLinus Torvalds { 12418687b63aSAl Viro __be32 *p; 12421da177e4SLinus Torvalds 12431da177e4SLinus Torvalds RESERVE_SPACE(12); 12441da177e4SLinus Torvalds WRITE32(OP_RENEW); 12451da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 12461da177e4SLinus Torvalds 12471da177e4SLinus Torvalds return 0; 12481da177e4SLinus Torvalds } 12491da177e4SLinus Torvalds 12501da177e4SLinus Torvalds static int 125156ae19f3STrond Myklebust encode_restorefh(struct xdr_stream *xdr) 125256ae19f3STrond Myklebust { 12538687b63aSAl Viro __be32 *p; 125456ae19f3STrond Myklebust 125556ae19f3STrond Myklebust RESERVE_SPACE(4); 125656ae19f3STrond Myklebust WRITE32(OP_RESTOREFH); 125756ae19f3STrond Myklebust 125856ae19f3STrond Myklebust return 0; 125956ae19f3STrond Myklebust } 126056ae19f3STrond Myklebust 126156ae19f3STrond Myklebust static int 126223ec6965SJ. Bruce Fields encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) 126323ec6965SJ. Bruce Fields { 12648687b63aSAl Viro __be32 *p; 126523ec6965SJ. Bruce Fields 12668ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 126723ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 12688ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 126923ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 127023ec6965SJ. Bruce Fields WRITE32(1); 127123ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 127223ec6965SJ. Bruce Fields if (arg->acl_len % 4) 127323ec6965SJ. Bruce Fields return -EINVAL; 127423ec6965SJ. Bruce Fields RESERVE_SPACE(4); 127523ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 127623ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 127723ec6965SJ. Bruce Fields return 0; 127823ec6965SJ. Bruce Fields } 127923ec6965SJ. Bruce Fields 128023ec6965SJ. Bruce Fields static int 12811da177e4SLinus Torvalds encode_savefh(struct xdr_stream *xdr) 12821da177e4SLinus Torvalds { 12838687b63aSAl Viro __be32 *p; 12841da177e4SLinus Torvalds 12851da177e4SLinus Torvalds RESERVE_SPACE(4); 12861da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 12871da177e4SLinus Torvalds 12881da177e4SLinus Torvalds return 0; 12891da177e4SLinus Torvalds } 12901da177e4SLinus Torvalds 12911da177e4SLinus Torvalds static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) 12921da177e4SLinus Torvalds { 12931da177e4SLinus Torvalds int status; 12948687b63aSAl Viro __be32 *p; 12951da177e4SLinus Torvalds 12968ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 12971da177e4SLinus Torvalds WRITE32(OP_SETATTR); 12988ae20abdSTrond Myklebust WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 12991da177e4SLinus Torvalds 13001da177e4SLinus Torvalds if ((status = encode_attrs(xdr, arg->iap, server))) 13011da177e4SLinus Torvalds return status; 13021da177e4SLinus Torvalds 13031da177e4SLinus Torvalds return 0; 13041da177e4SLinus Torvalds } 13051da177e4SLinus Torvalds 13061da177e4SLinus Torvalds static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) 13071da177e4SLinus Torvalds { 13088687b63aSAl Viro __be32 *p; 13091da177e4SLinus Torvalds 13108ae20abdSTrond Myklebust RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 13111da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 13128ae20abdSTrond Myklebust WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 13131da177e4SLinus Torvalds 13141da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 13151da177e4SLinus Torvalds RESERVE_SPACE(4); 13161da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 13171da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 13181da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 13191da177e4SLinus Torvalds RESERVE_SPACE(4); 13201da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 13211da177e4SLinus Torvalds 13221da177e4SLinus Torvalds return 0; 13231da177e4SLinus Torvalds } 13241da177e4SLinus Torvalds 1325adfa6f98SDavid Howells static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state) 13261da177e4SLinus Torvalds { 13278687b63aSAl Viro __be32 *p; 13281da177e4SLinus Torvalds 13298ae20abdSTrond Myklebust RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 13301da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 13311da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 13328ae20abdSTrond Myklebust WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 13331da177e4SLinus Torvalds 13341da177e4SLinus Torvalds return 0; 13351da177e4SLinus Torvalds } 13361da177e4SLinus Torvalds 13371da177e4SLinus Torvalds static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) 13381da177e4SLinus Torvalds { 13398687b63aSAl Viro __be32 *p; 13401da177e4SLinus Torvalds 13411da177e4SLinus Torvalds RESERVE_SPACE(4); 13421da177e4SLinus Torvalds WRITE32(OP_WRITE); 13431da177e4SLinus Torvalds 13441da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13451da177e4SLinus Torvalds 13461da177e4SLinus Torvalds RESERVE_SPACE(16); 13471da177e4SLinus Torvalds WRITE64(args->offset); 13481da177e4SLinus Torvalds WRITE32(args->stable); 13491da177e4SLinus Torvalds WRITE32(args->count); 13501da177e4SLinus Torvalds 13511da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 13521da177e4SLinus Torvalds 13531da177e4SLinus Torvalds return 0; 13541da177e4SLinus Torvalds } 13551da177e4SLinus Torvalds 13561da177e4SLinus Torvalds static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) 13571da177e4SLinus Torvalds { 13588687b63aSAl Viro __be32 *p; 13591da177e4SLinus Torvalds 13608ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 13611da177e4SLinus Torvalds 13621da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 13638ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 13641da177e4SLinus Torvalds return 0; 13651da177e4SLinus Torvalds 13661da177e4SLinus Torvalds } 13671da177e4SLinus Torvalds /* 13681da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 13691da177e4SLinus Torvalds */ 13701da177e4SLinus Torvalds 13711da177e4SLinus Torvalds /* 13721da177e4SLinus Torvalds * Encode an ACCESS request 13731da177e4SLinus Torvalds */ 13748687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 13751da177e4SLinus Torvalds { 13761da177e4SLinus Torvalds struct xdr_stream xdr; 13771da177e4SLinus Torvalds struct compound_hdr hdr = { 13781da177e4SLinus Torvalds .nops = 2, 13791da177e4SLinus Torvalds }; 13801da177e4SLinus Torvalds int status; 13811da177e4SLinus Torvalds 13821da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13831da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13841da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 13851da177e4SLinus Torvalds status = encode_access(&xdr, args->access); 13861da177e4SLinus Torvalds return status; 13871da177e4SLinus Torvalds } 13881da177e4SLinus Torvalds 13891da177e4SLinus Torvalds /* 13901da177e4SLinus Torvalds * Encode LOOKUP request 13911da177e4SLinus Torvalds */ 13928687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 13931da177e4SLinus Torvalds { 13941da177e4SLinus Torvalds struct xdr_stream xdr; 13951da177e4SLinus Torvalds struct compound_hdr hdr = { 13961da177e4SLinus Torvalds .nops = 4, 13971da177e4SLinus Torvalds }; 13981da177e4SLinus Torvalds int status; 13991da177e4SLinus Torvalds 14001da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14011da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14021da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 14031da177e4SLinus Torvalds goto out; 14041da177e4SLinus Torvalds if ((status = encode_lookup(&xdr, args->name)) != 0) 14051da177e4SLinus Torvalds goto out; 14061da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 14071da177e4SLinus Torvalds goto out; 14081da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14091da177e4SLinus Torvalds out: 14101da177e4SLinus Torvalds return status; 14111da177e4SLinus Torvalds } 14121da177e4SLinus Torvalds 14131da177e4SLinus Torvalds /* 14141da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 14151da177e4SLinus Torvalds */ 14168687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 14171da177e4SLinus Torvalds { 14181da177e4SLinus Torvalds struct xdr_stream xdr; 14191da177e4SLinus Torvalds struct compound_hdr hdr = { 14201da177e4SLinus Torvalds .nops = 3, 14211da177e4SLinus Torvalds }; 14221da177e4SLinus Torvalds int status; 14231da177e4SLinus Torvalds 14241da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14251da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14261da177e4SLinus Torvalds if ((status = encode_putrootfh(&xdr)) != 0) 14271da177e4SLinus Torvalds goto out; 14281da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) == 0) 14291da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14301da177e4SLinus Torvalds out: 14311da177e4SLinus Torvalds return status; 14321da177e4SLinus Torvalds } 14331da177e4SLinus Torvalds 14341da177e4SLinus Torvalds /* 14351da177e4SLinus Torvalds * Encode REMOVE request 14361da177e4SLinus Torvalds */ 14374fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 14381da177e4SLinus Torvalds { 14391da177e4SLinus Torvalds struct xdr_stream xdr; 14401da177e4SLinus Torvalds struct compound_hdr hdr = { 144116e42959STrond Myklebust .nops = 3, 14421da177e4SLinus Torvalds }; 14431da177e4SLinus Torvalds int status; 14441da177e4SLinus Torvalds 14451da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14461da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 144716e42959STrond Myklebust if ((status = encode_putfh(&xdr, args->fh)) != 0) 144816e42959STrond Myklebust goto out; 14494fdc17b2STrond Myklebust if ((status = encode_remove(&xdr, &args->name)) != 0) 145016e42959STrond Myklebust goto out; 145116e42959STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 145216e42959STrond Myklebust out: 14531da177e4SLinus Torvalds return status; 14541da177e4SLinus Torvalds } 14551da177e4SLinus Torvalds 14561da177e4SLinus Torvalds /* 14571da177e4SLinus Torvalds * Encode RENAME request 14581da177e4SLinus Torvalds */ 14598687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 14601da177e4SLinus Torvalds { 14611da177e4SLinus Torvalds struct xdr_stream xdr; 14621da177e4SLinus Torvalds struct compound_hdr hdr = { 14636caf2c82STrond Myklebust .nops = 7, 14641da177e4SLinus Torvalds }; 14651da177e4SLinus Torvalds int status; 14661da177e4SLinus Torvalds 14671da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14681da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14691da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->old_dir)) != 0) 14701da177e4SLinus Torvalds goto out; 14711da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 14721da177e4SLinus Torvalds goto out; 14731da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->new_dir)) != 0) 14741da177e4SLinus Torvalds goto out; 14756caf2c82STrond Myklebust if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) 14766caf2c82STrond Myklebust goto out; 14776caf2c82STrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 14786caf2c82STrond Myklebust goto out; 14796caf2c82STrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 14806caf2c82STrond Myklebust goto out; 14816caf2c82STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 14821da177e4SLinus Torvalds out: 14831da177e4SLinus Torvalds return status; 14841da177e4SLinus Torvalds } 14851da177e4SLinus Torvalds 14861da177e4SLinus Torvalds /* 14871da177e4SLinus Torvalds * Encode LINK request 14881da177e4SLinus Torvalds */ 14898687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 14901da177e4SLinus Torvalds { 14911da177e4SLinus Torvalds struct xdr_stream xdr; 14921da177e4SLinus Torvalds struct compound_hdr hdr = { 149391ba2eeeSTrond Myklebust .nops = 7, 14941da177e4SLinus Torvalds }; 14951da177e4SLinus Torvalds int status; 14961da177e4SLinus Torvalds 14971da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14981da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14991da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) != 0) 15001da177e4SLinus Torvalds goto out; 15011da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 15021da177e4SLinus Torvalds goto out; 15031da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 15041da177e4SLinus Torvalds goto out; 150591ba2eeeSTrond Myklebust if ((status = encode_link(&xdr, args->name)) != 0) 150691ba2eeeSTrond Myklebust goto out; 150791ba2eeeSTrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 150891ba2eeeSTrond Myklebust goto out; 150991ba2eeeSTrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 151091ba2eeeSTrond Myklebust goto out; 151191ba2eeeSTrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 15121da177e4SLinus Torvalds out: 15131da177e4SLinus Torvalds return status; 15141da177e4SLinus Torvalds } 15151da177e4SLinus Torvalds 15161da177e4SLinus Torvalds /* 15171da177e4SLinus Torvalds * Encode CREATE request 15181da177e4SLinus Torvalds */ 15198687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 15201da177e4SLinus Torvalds { 15211da177e4SLinus Torvalds struct xdr_stream xdr; 15221da177e4SLinus Torvalds struct compound_hdr hdr = { 152356ae19f3STrond Myklebust .nops = 7, 15241da177e4SLinus Torvalds }; 15251da177e4SLinus Torvalds int status; 15261da177e4SLinus Torvalds 15271da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15281da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15291da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 15301da177e4SLinus Torvalds goto out; 153156ae19f3STrond Myklebust if ((status = encode_savefh(&xdr)) != 0) 153256ae19f3STrond Myklebust goto out; 15331da177e4SLinus Torvalds if ((status = encode_create(&xdr, args)) != 0) 15341da177e4SLinus Torvalds goto out; 15351da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 15361da177e4SLinus Torvalds goto out; 153756ae19f3STrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 153856ae19f3STrond Myklebust goto out; 153956ae19f3STrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 154056ae19f3STrond Myklebust goto out; 15411da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 15421da177e4SLinus Torvalds out: 15431da177e4SLinus Torvalds return status; 15441da177e4SLinus Torvalds } 15451da177e4SLinus Torvalds 15461da177e4SLinus Torvalds /* 15471da177e4SLinus Torvalds * Encode SYMLINK request 15481da177e4SLinus Torvalds */ 15498687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 15501da177e4SLinus Torvalds { 15511da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 15521da177e4SLinus Torvalds } 15531da177e4SLinus Torvalds 15541da177e4SLinus Torvalds /* 15551da177e4SLinus Torvalds * Encode GETATTR request 15561da177e4SLinus Torvalds */ 15578687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 15581da177e4SLinus Torvalds { 15591da177e4SLinus Torvalds struct xdr_stream xdr; 15601da177e4SLinus Torvalds struct compound_hdr hdr = { 15611da177e4SLinus Torvalds .nops = 2, 15621da177e4SLinus Torvalds }; 15631da177e4SLinus Torvalds int status; 15641da177e4SLinus Torvalds 15651da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15661da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15671da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 15681da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 15691da177e4SLinus Torvalds return status; 15701da177e4SLinus Torvalds } 15711da177e4SLinus Torvalds 15721da177e4SLinus Torvalds /* 15731da177e4SLinus Torvalds * Encode a CLOSE request 15741da177e4SLinus Torvalds */ 15758687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 15761da177e4SLinus Torvalds { 15771da177e4SLinus Torvalds struct xdr_stream xdr; 15781da177e4SLinus Torvalds struct compound_hdr hdr = { 1579516a6af6STrond Myklebust .nops = 3, 15801da177e4SLinus Torvalds }; 15811da177e4SLinus Torvalds int status; 15821da177e4SLinus Torvalds 15831da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15841da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15851da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15861da177e4SLinus Torvalds if(status) 15871da177e4SLinus Torvalds goto out; 15881da177e4SLinus Torvalds status = encode_close(&xdr, args); 1589516a6af6STrond Myklebust if (status != 0) 1590516a6af6STrond Myklebust goto out; 1591516a6af6STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 15921da177e4SLinus Torvalds out: 15931da177e4SLinus Torvalds return status; 15941da177e4SLinus Torvalds } 15951da177e4SLinus Torvalds 15961da177e4SLinus Torvalds /* 15971da177e4SLinus Torvalds * Encode an OPEN request 15981da177e4SLinus Torvalds */ 15998687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 16001da177e4SLinus Torvalds { 16011da177e4SLinus Torvalds struct xdr_stream xdr; 16021da177e4SLinus Torvalds struct compound_hdr hdr = { 160356ae19f3STrond Myklebust .nops = 7, 16041da177e4SLinus Torvalds }; 16051da177e4SLinus Torvalds int status; 16061da177e4SLinus Torvalds 16071da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16081da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16091da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16101da177e4SLinus Torvalds if (status) 16111da177e4SLinus Torvalds goto out; 161256ae19f3STrond Myklebust status = encode_savefh(&xdr); 161356ae19f3STrond Myklebust if (status) 161456ae19f3STrond Myklebust goto out; 16151da177e4SLinus Torvalds status = encode_open(&xdr, args); 16161da177e4SLinus Torvalds if (status) 16171da177e4SLinus Torvalds goto out; 16181da177e4SLinus Torvalds status = encode_getfh(&xdr); 16191da177e4SLinus Torvalds if (status) 16201da177e4SLinus Torvalds goto out; 16211da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 162256ae19f3STrond Myklebust if (status) 162356ae19f3STrond Myklebust goto out; 162456ae19f3STrond Myklebust status = encode_restorefh(&xdr); 162556ae19f3STrond Myklebust if (status) 162656ae19f3STrond Myklebust goto out; 162756ae19f3STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 16281da177e4SLinus Torvalds out: 16291da177e4SLinus Torvalds return status; 16301da177e4SLinus Torvalds } 16311da177e4SLinus Torvalds 16321da177e4SLinus Torvalds /* 16331da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 16341da177e4SLinus Torvalds */ 16358687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 16361da177e4SLinus Torvalds { 16371da177e4SLinus Torvalds struct xdr_stream xdr; 16381da177e4SLinus Torvalds struct compound_hdr hdr = { 16391da177e4SLinus Torvalds .nops = 2, 16401da177e4SLinus Torvalds }; 16411da177e4SLinus Torvalds int status; 16421da177e4SLinus Torvalds 16431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16441da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16451da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16461da177e4SLinus Torvalds if(status) 16471da177e4SLinus Torvalds goto out; 16481da177e4SLinus Torvalds status = encode_open_confirm(&xdr, args); 16491da177e4SLinus Torvalds out: 16501da177e4SLinus Torvalds return status; 16511da177e4SLinus Torvalds } 16521da177e4SLinus Torvalds 16531da177e4SLinus Torvalds /* 16541da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 16551da177e4SLinus Torvalds */ 16568687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 16571da177e4SLinus Torvalds { 16581da177e4SLinus Torvalds struct xdr_stream xdr; 16591da177e4SLinus Torvalds struct compound_hdr hdr = { 1660864472e9STrond Myklebust .nops = 3, 16611da177e4SLinus Torvalds }; 16621da177e4SLinus Torvalds int status; 16631da177e4SLinus Torvalds 16641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16651da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16661da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16671da177e4SLinus Torvalds if (status) 16681da177e4SLinus Torvalds goto out; 16691da177e4SLinus Torvalds status = encode_open(&xdr, args); 1670864472e9STrond Myklebust if (status) 1671864472e9STrond Myklebust goto out; 1672864472e9STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 16731da177e4SLinus Torvalds out: 16741da177e4SLinus Torvalds return status; 16751da177e4SLinus Torvalds } 16761da177e4SLinus Torvalds 16771da177e4SLinus Torvalds /* 16781da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 16791da177e4SLinus Torvalds */ 16808687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 16811da177e4SLinus Torvalds { 16821da177e4SLinus Torvalds struct xdr_stream xdr; 16831da177e4SLinus Torvalds struct compound_hdr hdr = { 1684516a6af6STrond Myklebust .nops = 3, 16851da177e4SLinus Torvalds }; 16861da177e4SLinus Torvalds int status; 16871da177e4SLinus Torvalds 16881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16891da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16901da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16911da177e4SLinus Torvalds if (status) 16921da177e4SLinus Torvalds goto out; 16931da177e4SLinus Torvalds status = encode_open_downgrade(&xdr, args); 1694516a6af6STrond Myklebust if (status != 0) 1695516a6af6STrond Myklebust goto out; 1696516a6af6STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 16971da177e4SLinus Torvalds out: 16981da177e4SLinus Torvalds return status; 16991da177e4SLinus Torvalds } 17001da177e4SLinus Torvalds 17011da177e4SLinus Torvalds /* 17021da177e4SLinus Torvalds * Encode a LOCK request 17031da177e4SLinus Torvalds */ 17048687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 17051da177e4SLinus Torvalds { 17061da177e4SLinus Torvalds struct xdr_stream xdr; 17071da177e4SLinus Torvalds struct compound_hdr hdr = { 17081da177e4SLinus Torvalds .nops = 2, 17091da177e4SLinus Torvalds }; 17101da177e4SLinus Torvalds int status; 17111da177e4SLinus Torvalds 17121da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17131da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17141da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17151da177e4SLinus Torvalds if(status) 17161da177e4SLinus Torvalds goto out; 17171da177e4SLinus Torvalds status = encode_lock(&xdr, args); 17181da177e4SLinus Torvalds out: 17191da177e4SLinus Torvalds return status; 17201da177e4SLinus Torvalds } 17211da177e4SLinus Torvalds 17221da177e4SLinus Torvalds /* 17231da177e4SLinus Torvalds * Encode a LOCKT request 17241da177e4SLinus Torvalds */ 17258687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 17261da177e4SLinus Torvalds { 17271da177e4SLinus Torvalds struct xdr_stream xdr; 17281da177e4SLinus Torvalds struct compound_hdr hdr = { 17291da177e4SLinus Torvalds .nops = 2, 17301da177e4SLinus Torvalds }; 17311da177e4SLinus Torvalds int status; 17321da177e4SLinus Torvalds 17331da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17341da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17351da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17361da177e4SLinus Torvalds if(status) 17371da177e4SLinus Torvalds goto out; 17381da177e4SLinus Torvalds status = encode_lockt(&xdr, args); 17391da177e4SLinus Torvalds out: 17401da177e4SLinus Torvalds return status; 17411da177e4SLinus Torvalds } 17421da177e4SLinus Torvalds 17431da177e4SLinus Torvalds /* 17441da177e4SLinus Torvalds * Encode a LOCKU request 17451da177e4SLinus Torvalds */ 17468687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 17471da177e4SLinus Torvalds { 17481da177e4SLinus Torvalds struct xdr_stream xdr; 17491da177e4SLinus Torvalds struct compound_hdr hdr = { 17501da177e4SLinus Torvalds .nops = 2, 17511da177e4SLinus Torvalds }; 17521da177e4SLinus Torvalds int status; 17531da177e4SLinus Torvalds 17541da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17551da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17561da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17571da177e4SLinus Torvalds if(status) 17581da177e4SLinus Torvalds goto out; 17591da177e4SLinus Torvalds status = encode_locku(&xdr, args); 17601da177e4SLinus Torvalds out: 17611da177e4SLinus Torvalds return status; 17621da177e4SLinus Torvalds } 17631da177e4SLinus Torvalds 17641da177e4SLinus Torvalds /* 17651da177e4SLinus Torvalds * Encode a READLINK request 17661da177e4SLinus Torvalds */ 17678687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 17681da177e4SLinus Torvalds { 17691da177e4SLinus Torvalds struct xdr_stream xdr; 17701da177e4SLinus Torvalds struct compound_hdr hdr = { 17711da177e4SLinus Torvalds .nops = 2, 17721da177e4SLinus Torvalds }; 1773e3a535e1STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1774e3a535e1STrond Myklebust unsigned int replen; 17751da177e4SLinus Torvalds int status; 17761da177e4SLinus Torvalds 17771da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17781da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17791da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17801da177e4SLinus Torvalds if(status) 17811da177e4SLinus Torvalds goto out; 17821da177e4SLinus Torvalds status = encode_readlink(&xdr, args, req); 1783e3a535e1STrond Myklebust 1784e3a535e1STrond Myklebust /* set up reply kvec 1785e3a535e1STrond Myklebust * toplevel_status + taglen + rescount + OP_PUTFH + status 1786e3a535e1STrond Myklebust * + OP_READLINK + status + string length = 8 1787e3a535e1STrond Myklebust */ 1788e3a535e1STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2; 1789e3a535e1STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 1790e3a535e1STrond Myklebust args->pgbase, args->pglen); 1791e3a535e1STrond Myklebust 17921da177e4SLinus Torvalds out: 17931da177e4SLinus Torvalds return status; 17941da177e4SLinus Torvalds } 17951da177e4SLinus Torvalds 17961da177e4SLinus Torvalds /* 17971da177e4SLinus Torvalds * Encode a READDIR request 17981da177e4SLinus Torvalds */ 17998687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 18001da177e4SLinus Torvalds { 18011da177e4SLinus Torvalds struct xdr_stream xdr; 18021da177e4SLinus Torvalds struct compound_hdr hdr = { 18031da177e4SLinus Torvalds .nops = 2, 18041da177e4SLinus Torvalds }; 1805d6ac02dfSTrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1806d6ac02dfSTrond Myklebust int replen; 18071da177e4SLinus Torvalds int status; 18081da177e4SLinus Torvalds 18091da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18101da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18111da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18121da177e4SLinus Torvalds if(status) 18131da177e4SLinus Torvalds goto out; 18141da177e4SLinus Torvalds status = encode_readdir(&xdr, args, req); 1815d6ac02dfSTrond Myklebust 1816d6ac02dfSTrond Myklebust /* set up reply kvec 1817d6ac02dfSTrond Myklebust * toplevel_status + taglen + rescount + OP_PUTFH + status 1818d6ac02dfSTrond Myklebust * + OP_READDIR + status + verifer(2) = 9 1819d6ac02dfSTrond Myklebust */ 1820d6ac02dfSTrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2; 1821d6ac02dfSTrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 1822d6ac02dfSTrond Myklebust args->pgbase, args->count); 1823d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 1824d6ac02dfSTrond Myklebust __FUNCTION__, replen, args->pages, 1825d6ac02dfSTrond Myklebust args->pgbase, args->count); 1826d6ac02dfSTrond Myklebust 18271da177e4SLinus Torvalds out: 18281da177e4SLinus Torvalds return status; 18291da177e4SLinus Torvalds } 18301da177e4SLinus Torvalds 18311da177e4SLinus Torvalds /* 18321da177e4SLinus Torvalds * Encode a READ request 18331da177e4SLinus Torvalds */ 18348687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 18351da177e4SLinus Torvalds { 18361be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 18371da177e4SLinus Torvalds struct xdr_stream xdr; 18381da177e4SLinus Torvalds struct compound_hdr hdr = { 18391da177e4SLinus Torvalds .nops = 2, 18401da177e4SLinus Torvalds }; 18411da177e4SLinus Torvalds int replen, status; 18421da177e4SLinus Torvalds 18431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18441da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18451da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18461da177e4SLinus Torvalds if (status) 18471da177e4SLinus Torvalds goto out; 18481da177e4SLinus Torvalds status = encode_read(&xdr, args); 18491da177e4SLinus Torvalds if (status) 18501da177e4SLinus Torvalds goto out; 18511da177e4SLinus Torvalds 18521da177e4SLinus Torvalds /* set up reply kvec 18531da177e4SLinus Torvalds * toplevel status + taglen=0 + rescount + OP_PUTFH + status 18541da177e4SLinus Torvalds * + OP_READ + status + eof + datalen = 9 18551da177e4SLinus Torvalds */ 18561da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; 18571da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, 18581da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 18591da177e4SLinus Torvalds out: 18601da177e4SLinus Torvalds return status; 18611da177e4SLinus Torvalds } 18621da177e4SLinus Torvalds 18631da177e4SLinus Torvalds /* 18641da177e4SLinus Torvalds * Encode an SETATTR request 18651da177e4SLinus Torvalds */ 18668687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 18671da177e4SLinus Torvalds 18681da177e4SLinus Torvalds { 18691da177e4SLinus Torvalds struct xdr_stream xdr; 18701da177e4SLinus Torvalds struct compound_hdr hdr = { 18711da177e4SLinus Torvalds .nops = 3, 18721da177e4SLinus Torvalds }; 18731da177e4SLinus Torvalds int status; 18741da177e4SLinus Torvalds 18751da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18761da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18771da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18781da177e4SLinus Torvalds if(status) 18791da177e4SLinus Torvalds goto out; 18801da177e4SLinus Torvalds status = encode_setattr(&xdr, args, args->server); 18811da177e4SLinus Torvalds if(status) 18821da177e4SLinus Torvalds goto out; 18831da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 18841da177e4SLinus Torvalds out: 18851da177e4SLinus Torvalds return status; 18861da177e4SLinus Torvalds } 18871da177e4SLinus Torvalds 18881da177e4SLinus Torvalds /* 1889029d105eSJ. Bruce Fields * Encode a GETACL request 1890029d105eSJ. Bruce Fields */ 1891029d105eSJ. Bruce Fields static int 18928687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 1893029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 1894029d105eSJ. Bruce Fields { 1895029d105eSJ. Bruce Fields struct xdr_stream xdr; 18961be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1897029d105eSJ. Bruce Fields struct compound_hdr hdr = { 1898029d105eSJ. Bruce Fields .nops = 2, 1899029d105eSJ. Bruce Fields }; 1900029d105eSJ. Bruce Fields int replen, status; 1901029d105eSJ. Bruce Fields 1902029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1903029d105eSJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 1904029d105eSJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 1905029d105eSJ. Bruce Fields if (status) 1906029d105eSJ. Bruce Fields goto out; 1907029d105eSJ. Bruce Fields status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); 1908029d105eSJ. Bruce Fields /* set up reply buffer: */ 1909029d105eSJ. Bruce Fields replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; 1910029d105eSJ. Bruce Fields xdr_inline_pages(&req->rq_rcv_buf, replen, 1911029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 1912029d105eSJ. Bruce Fields out: 1913029d105eSJ. Bruce Fields return status; 1914029d105eSJ. Bruce Fields } 1915029d105eSJ. Bruce Fields 1916029d105eSJ. Bruce Fields /* 19171da177e4SLinus Torvalds * Encode a WRITE request 19181da177e4SLinus Torvalds */ 19198687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 19201da177e4SLinus Torvalds { 19211da177e4SLinus Torvalds struct xdr_stream xdr; 19221da177e4SLinus Torvalds struct compound_hdr hdr = { 19234f9838c7STrond Myklebust .nops = 3, 19241da177e4SLinus Torvalds }; 19251da177e4SLinus Torvalds int status; 19261da177e4SLinus Torvalds 19271da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19281da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19291da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19301da177e4SLinus Torvalds if (status) 19311da177e4SLinus Torvalds goto out; 19321da177e4SLinus Torvalds status = encode_write(&xdr, args); 19334f9838c7STrond Myklebust if (status) 19344f9838c7STrond Myklebust goto out; 19354f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 19361da177e4SLinus Torvalds out: 19371da177e4SLinus Torvalds return status; 19381da177e4SLinus Torvalds } 19391da177e4SLinus Torvalds 19401da177e4SLinus Torvalds /* 19411da177e4SLinus Torvalds * a COMMIT request 19421da177e4SLinus Torvalds */ 19438687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 19441da177e4SLinus Torvalds { 19451da177e4SLinus Torvalds struct xdr_stream xdr; 19461da177e4SLinus Torvalds struct compound_hdr hdr = { 19474f9838c7STrond Myklebust .nops = 3, 19481da177e4SLinus Torvalds }; 19491da177e4SLinus Torvalds int status; 19501da177e4SLinus Torvalds 19511da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19521da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19531da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19541da177e4SLinus Torvalds if (status) 19551da177e4SLinus Torvalds goto out; 19561da177e4SLinus Torvalds status = encode_commit(&xdr, args); 19574f9838c7STrond Myklebust if (status) 19584f9838c7STrond Myklebust goto out; 19594f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 19601da177e4SLinus Torvalds out: 19611da177e4SLinus Torvalds return status; 19621da177e4SLinus Torvalds } 19631da177e4SLinus Torvalds 19641da177e4SLinus Torvalds /* 19651da177e4SLinus Torvalds * FSINFO request 19661da177e4SLinus Torvalds */ 19678687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 19681da177e4SLinus Torvalds { 19691da177e4SLinus Torvalds struct xdr_stream xdr; 19701da177e4SLinus Torvalds struct compound_hdr hdr = { 19711da177e4SLinus Torvalds .nops = 2, 19721da177e4SLinus Torvalds }; 19731da177e4SLinus Torvalds int status; 19741da177e4SLinus Torvalds 19751da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19761da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19771da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19781da177e4SLinus Torvalds if (!status) 19791da177e4SLinus Torvalds status = encode_fsinfo(&xdr, args->bitmask); 19801da177e4SLinus Torvalds return status; 19811da177e4SLinus Torvalds } 19821da177e4SLinus Torvalds 19831da177e4SLinus Torvalds /* 19841da177e4SLinus Torvalds * a PATHCONF request 19851da177e4SLinus Torvalds */ 19868687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 19871da177e4SLinus Torvalds { 19881da177e4SLinus Torvalds struct xdr_stream xdr; 19891da177e4SLinus Torvalds struct compound_hdr hdr = { 19901da177e4SLinus Torvalds .nops = 2, 19911da177e4SLinus Torvalds }; 19921da177e4SLinus Torvalds int status; 19931da177e4SLinus Torvalds 19941da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19951da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19961da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19971da177e4SLinus Torvalds if (!status) 19981da177e4SLinus Torvalds status = encode_getattr_one(&xdr, 19991da177e4SLinus Torvalds args->bitmask[0] & nfs4_pathconf_bitmap[0]); 20001da177e4SLinus Torvalds return status; 20011da177e4SLinus Torvalds } 20021da177e4SLinus Torvalds 20031da177e4SLinus Torvalds /* 20041da177e4SLinus Torvalds * a STATFS request 20051da177e4SLinus Torvalds */ 20068687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 20071da177e4SLinus Torvalds { 20081da177e4SLinus Torvalds struct xdr_stream xdr; 20091da177e4SLinus Torvalds struct compound_hdr hdr = { 20101da177e4SLinus Torvalds .nops = 2, 20111da177e4SLinus Torvalds }; 20121da177e4SLinus Torvalds int status; 20131da177e4SLinus Torvalds 20141da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20151da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20161da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 20171da177e4SLinus Torvalds if (status == 0) 20181da177e4SLinus Torvalds status = encode_getattr_two(&xdr, 20191da177e4SLinus Torvalds args->bitmask[0] & nfs4_statfs_bitmap[0], 20201da177e4SLinus Torvalds args->bitmask[1] & nfs4_statfs_bitmap[1]); 20211da177e4SLinus Torvalds return status; 20221da177e4SLinus Torvalds } 20231da177e4SLinus Torvalds 20241da177e4SLinus Torvalds /* 20251da177e4SLinus Torvalds * GETATTR_BITMAP request 20261da177e4SLinus Torvalds */ 20278687b63aSAl Viro static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) 20281da177e4SLinus Torvalds { 20291da177e4SLinus Torvalds struct xdr_stream xdr; 20301da177e4SLinus Torvalds struct compound_hdr hdr = { 20311da177e4SLinus Torvalds .nops = 2, 20321da177e4SLinus Torvalds }; 20331da177e4SLinus Torvalds int status; 20341da177e4SLinus Torvalds 20351da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20361da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20371da177e4SLinus Torvalds status = encode_putfh(&xdr, fhandle); 20381da177e4SLinus Torvalds if (status == 0) 20391da177e4SLinus Torvalds status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 20401da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 20411da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 20421da177e4SLinus Torvalds FATTR4_WORD0_ACLSUPPORT); 20431da177e4SLinus Torvalds return status; 20441da177e4SLinus Torvalds } 20451da177e4SLinus Torvalds 20461da177e4SLinus Torvalds /* 20471da177e4SLinus Torvalds * a RENEW request 20481da177e4SLinus Torvalds */ 20498687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 20501da177e4SLinus Torvalds { 20511da177e4SLinus Torvalds struct xdr_stream xdr; 20521da177e4SLinus Torvalds struct compound_hdr hdr = { 20531da177e4SLinus Torvalds .nops = 1, 20541da177e4SLinus Torvalds }; 20551da177e4SLinus Torvalds 20561da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20571da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20581da177e4SLinus Torvalds return encode_renew(&xdr, clp); 20591da177e4SLinus Torvalds } 20601da177e4SLinus Torvalds 20611da177e4SLinus Torvalds /* 20621da177e4SLinus Torvalds * a SETCLIENTID request 20631da177e4SLinus Torvalds */ 20648687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 20651da177e4SLinus Torvalds { 20661da177e4SLinus Torvalds struct xdr_stream xdr; 20671da177e4SLinus Torvalds struct compound_hdr hdr = { 20681da177e4SLinus Torvalds .nops = 1, 20691da177e4SLinus Torvalds }; 20701da177e4SLinus Torvalds 20711da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20721da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20731da177e4SLinus Torvalds return encode_setclientid(&xdr, sc); 20741da177e4SLinus Torvalds } 20751da177e4SLinus Torvalds 20761da177e4SLinus Torvalds /* 20771da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 20781da177e4SLinus Torvalds */ 20798687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 20801da177e4SLinus Torvalds { 20811da177e4SLinus Torvalds struct xdr_stream xdr; 20821da177e4SLinus Torvalds struct compound_hdr hdr = { 20831da177e4SLinus Torvalds .nops = 3, 20841da177e4SLinus Torvalds }; 20851da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 20861da177e4SLinus Torvalds int status; 20871da177e4SLinus Torvalds 20881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20891da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20901da177e4SLinus Torvalds status = encode_setclientid_confirm(&xdr, clp); 20911da177e4SLinus Torvalds if (!status) 20921da177e4SLinus Torvalds status = encode_putrootfh(&xdr); 20931da177e4SLinus Torvalds if (!status) 20941da177e4SLinus Torvalds status = encode_fsinfo(&xdr, lease_bitmap); 20951da177e4SLinus Torvalds return status; 20961da177e4SLinus Torvalds } 20971da177e4SLinus Torvalds 20981da177e4SLinus Torvalds /* 20991da177e4SLinus Torvalds * DELEGRETURN request 21001da177e4SLinus Torvalds */ 21018687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 21021da177e4SLinus Torvalds { 21031da177e4SLinus Torvalds struct xdr_stream xdr; 21041da177e4SLinus Torvalds struct compound_hdr hdr = { 2105fa178f29STrond Myklebust .nops = 3, 21061da177e4SLinus Torvalds }; 21071da177e4SLinus Torvalds int status; 21081da177e4SLinus Torvalds 21091da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21101da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 2111fa178f29STrond Myklebust status = encode_putfh(&xdr, args->fhandle); 2112fa178f29STrond Myklebust if (status != 0) 2113fa178f29STrond Myklebust goto out; 21141da177e4SLinus Torvalds status = encode_delegreturn(&xdr, args->stateid); 2115fa178f29STrond Myklebust if (status != 0) 2116fa178f29STrond Myklebust goto out; 2117fa178f29STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 2118fa178f29STrond Myklebust out: 21191da177e4SLinus Torvalds return status; 21201da177e4SLinus Torvalds } 21211da177e4SLinus Torvalds 21221da177e4SLinus Torvalds /* 2123683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2124683b57b4STrond Myklebust */ 21258687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2126683b57b4STrond Myklebust { 2127683b57b4STrond Myklebust struct xdr_stream xdr; 2128683b57b4STrond Myklebust struct compound_hdr hdr = { 2129683b57b4STrond Myklebust .nops = 3, 2130683b57b4STrond Myklebust }; 21311be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 2132683b57b4STrond Myklebust int replen; 2133683b57b4STrond Myklebust int status; 2134683b57b4STrond Myklebust 2135683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2136683b57b4STrond Myklebust encode_compound_hdr(&xdr, &hdr); 2137683b57b4STrond Myklebust if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 2138683b57b4STrond Myklebust goto out; 2139683b57b4STrond Myklebust if ((status = encode_lookup(&xdr, args->name)) != 0) 2140683b57b4STrond Myklebust goto out; 2141830b8e33SManoj Naik if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0) 2142683b57b4STrond Myklebust goto out; 2143683b57b4STrond Myklebust /* set up reply 2144830b8e33SManoj Naik * toplevel_status + OP_PUTFH + status 2145683b57b4STrond Myklebust * + OP_LOOKUP + status + OP_GETATTR + status = 7 2146683b57b4STrond Myklebust */ 2147683b57b4STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; 2148683b57b4STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, 2149683b57b4STrond Myklebust 0, PAGE_SIZE); 2150683b57b4STrond Myklebust out: 2151683b57b4STrond Myklebust return status; 2152683b57b4STrond Myklebust } 2153683b57b4STrond Myklebust 2154683b57b4STrond Myklebust /* 21551da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 21561da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 21571da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 21581da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 21591da177e4SLinus Torvalds * 21601da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 21611da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 21621da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 21631da177e4SLinus Torvalds */ 21641da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 21651da177e4SLinus Torvalds #define READ64(x) do { \ 21661da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 21671da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 21681da177e4SLinus Torvalds } while (0) 21691da177e4SLinus Torvalds #define READTIME(x) do { \ 21701da177e4SLinus Torvalds p++; \ 21711da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 21721da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 21731da177e4SLinus Torvalds } while (0) 21741da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 21751da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 21761da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 21771da177e4SLinus Torvalds } while (0) 21781da177e4SLinus Torvalds 21791da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 21801da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2181e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2182fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 2183e4cc6ee2SChuck Lever " buffer\n", __FUNCTION__); \ 2184fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 2185e4cc6ee2SChuck Lever __FUNCTION__, xdr->p, nbytes, xdr->end); \ 21861da177e4SLinus Torvalds return -EIO; \ 21871da177e4SLinus Torvalds } \ 21881da177e4SLinus Torvalds } while (0) 21891da177e4SLinus Torvalds 2190683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 21911da177e4SLinus Torvalds { 21928687b63aSAl Viro __be32 *p; 21931da177e4SLinus Torvalds 21941da177e4SLinus Torvalds READ_BUF(4); 21951da177e4SLinus Torvalds READ32(*len); 21961da177e4SLinus Torvalds READ_BUF(*len); 21971da177e4SLinus Torvalds *string = (char *)p; 21981da177e4SLinus Torvalds return 0; 21991da177e4SLinus Torvalds } 22001da177e4SLinus Torvalds 22011da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 22021da177e4SLinus Torvalds { 22038687b63aSAl Viro __be32 *p; 22041da177e4SLinus Torvalds 22051da177e4SLinus Torvalds READ_BUF(8); 22061da177e4SLinus Torvalds READ32(hdr->status); 22071da177e4SLinus Torvalds READ32(hdr->taglen); 22081da177e4SLinus Torvalds 22091da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 22101da177e4SLinus Torvalds hdr->tag = (char *)p; 22111da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 22121da177e4SLinus Torvalds READ32(hdr->nops); 22131da177e4SLinus Torvalds return 0; 22141da177e4SLinus Torvalds } 22151da177e4SLinus Torvalds 22161da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 22171da177e4SLinus Torvalds { 22188687b63aSAl Viro __be32 *p; 22191da177e4SLinus Torvalds uint32_t opnum; 22201da177e4SLinus Torvalds int32_t nfserr; 22211da177e4SLinus Torvalds 22221da177e4SLinus Torvalds READ_BUF(8); 22231da177e4SLinus Torvalds READ32(opnum); 22241da177e4SLinus Torvalds if (opnum != expected) { 2225fe82a183SChuck Lever dprintk("nfs: Server returned operation" 22261da177e4SLinus Torvalds " %d but we issued a request for %d\n", 22271da177e4SLinus Torvalds opnum, expected); 22281da177e4SLinus Torvalds return -EIO; 22291da177e4SLinus Torvalds } 22301da177e4SLinus Torvalds READ32(nfserr); 22311da177e4SLinus Torvalds if (nfserr != NFS_OK) 22320a8ea437SDavid Howells return -nfs4_stat_to_errno(nfserr); 22331da177e4SLinus Torvalds return 0; 22341da177e4SLinus Torvalds } 22351da177e4SLinus Torvalds 22361da177e4SLinus Torvalds /* Dummy routine */ 2237adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 22381da177e4SLinus Torvalds { 22398687b63aSAl Viro __be32 *p; 2240683b57b4STrond Myklebust unsigned int strlen; 22411da177e4SLinus Torvalds char *str; 22421da177e4SLinus Torvalds 22431da177e4SLinus Torvalds READ_BUF(12); 22441da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 22451da177e4SLinus Torvalds } 22461da177e4SLinus Torvalds 22471da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 22481da177e4SLinus Torvalds { 22498687b63aSAl Viro uint32_t bmlen; 22508687b63aSAl Viro __be32 *p; 22511da177e4SLinus Torvalds 22521da177e4SLinus Torvalds READ_BUF(4); 22531da177e4SLinus Torvalds READ32(bmlen); 22541da177e4SLinus Torvalds 22551da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 22561da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 22571da177e4SLinus Torvalds if (bmlen > 0) { 22581da177e4SLinus Torvalds READ32(bitmap[0]); 22591da177e4SLinus Torvalds if (bmlen > 1) 22601da177e4SLinus Torvalds READ32(bitmap[1]); 22611da177e4SLinus Torvalds } 22621da177e4SLinus Torvalds return 0; 22631da177e4SLinus Torvalds } 22641da177e4SLinus Torvalds 22658687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 22661da177e4SLinus Torvalds { 22678687b63aSAl Viro __be32 *p; 22681da177e4SLinus Torvalds 22691da177e4SLinus Torvalds READ_BUF(4); 22701da177e4SLinus Torvalds READ32(*attrlen); 22711da177e4SLinus Torvalds *savep = xdr->p; 22721da177e4SLinus Torvalds return 0; 22731da177e4SLinus Torvalds } 22741da177e4SLinus Torvalds 22751da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 22761da177e4SLinus Torvalds { 22771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 22781da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 22791da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 22801da177e4SLinus Torvalds } else 22811da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 22821da177e4SLinus Torvalds dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); 22831da177e4SLinus Torvalds return 0; 22841da177e4SLinus Torvalds } 22851da177e4SLinus Torvalds 22861da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 22871da177e4SLinus Torvalds { 22888687b63aSAl Viro __be32 *p; 22891da177e4SLinus Torvalds 22901da177e4SLinus Torvalds *type = 0; 22911da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 22921da177e4SLinus Torvalds return -EIO; 22931da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 22941da177e4SLinus Torvalds READ_BUF(4); 22951da177e4SLinus Torvalds READ32(*type); 22961da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 22971da177e4SLinus Torvalds dprintk("%s: bad type %d\n", __FUNCTION__, *type); 22981da177e4SLinus Torvalds return -EIO; 22991da177e4SLinus Torvalds } 23001da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 23011da177e4SLinus Torvalds } 23021da177e4SLinus Torvalds dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); 23031da177e4SLinus Torvalds return 0; 23041da177e4SLinus Torvalds } 23051da177e4SLinus Torvalds 23061da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 23071da177e4SLinus Torvalds { 23088687b63aSAl Viro __be32 *p; 23091da177e4SLinus Torvalds 23101da177e4SLinus Torvalds *change = 0; 23111da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 23121da177e4SLinus Torvalds return -EIO; 23131da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 23141da177e4SLinus Torvalds READ_BUF(8); 23151da177e4SLinus Torvalds READ64(*change); 23161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 23171da177e4SLinus Torvalds } 23181da177e4SLinus Torvalds dprintk("%s: change attribute=%Lu\n", __FUNCTION__, 23191da177e4SLinus Torvalds (unsigned long long)*change); 23201da177e4SLinus Torvalds return 0; 23211da177e4SLinus Torvalds } 23221da177e4SLinus Torvalds 23231da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 23241da177e4SLinus Torvalds { 23258687b63aSAl Viro __be32 *p; 23261da177e4SLinus Torvalds 23271da177e4SLinus Torvalds *size = 0; 23281da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 23291da177e4SLinus Torvalds return -EIO; 23301da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 23311da177e4SLinus Torvalds READ_BUF(8); 23321da177e4SLinus Torvalds READ64(*size); 23331da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 23341da177e4SLinus Torvalds } 23351da177e4SLinus Torvalds dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); 23361da177e4SLinus Torvalds return 0; 23371da177e4SLinus Torvalds } 23381da177e4SLinus Torvalds 23391da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23401da177e4SLinus Torvalds { 23418687b63aSAl Viro __be32 *p; 23421da177e4SLinus Torvalds 23431da177e4SLinus Torvalds *res = 0; 23441da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 23451da177e4SLinus Torvalds return -EIO; 23461da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 23471da177e4SLinus Torvalds READ_BUF(4); 23481da177e4SLinus Torvalds READ32(*res); 23491da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 23501da177e4SLinus Torvalds } 23511da177e4SLinus Torvalds dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 23521da177e4SLinus Torvalds return 0; 23531da177e4SLinus Torvalds } 23541da177e4SLinus Torvalds 23551da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23561da177e4SLinus Torvalds { 23578687b63aSAl Viro __be32 *p; 23581da177e4SLinus Torvalds 23591da177e4SLinus Torvalds *res = 0; 23601da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 23611da177e4SLinus Torvalds return -EIO; 23621da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 23631da177e4SLinus Torvalds READ_BUF(4); 23641da177e4SLinus Torvalds READ32(*res); 23651da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 23661da177e4SLinus Torvalds } 23671da177e4SLinus Torvalds dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 23681da177e4SLinus Torvalds return 0; 23691da177e4SLinus Torvalds } 23701da177e4SLinus Torvalds 23718b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 23721da177e4SLinus Torvalds { 23738687b63aSAl Viro __be32 *p; 23741da177e4SLinus Torvalds 23751da177e4SLinus Torvalds fsid->major = 0; 23761da177e4SLinus Torvalds fsid->minor = 0; 23771da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 23781da177e4SLinus Torvalds return -EIO; 23791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 23801da177e4SLinus Torvalds READ_BUF(16); 23811da177e4SLinus Torvalds READ64(fsid->major); 23821da177e4SLinus Torvalds READ64(fsid->minor); 23831da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 23841da177e4SLinus Torvalds } 23851da177e4SLinus Torvalds dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, 23861da177e4SLinus Torvalds (unsigned long long)fsid->major, 23871da177e4SLinus Torvalds (unsigned long long)fsid->minor); 23881da177e4SLinus Torvalds return 0; 23891da177e4SLinus Torvalds } 23901da177e4SLinus Torvalds 23911da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23921da177e4SLinus Torvalds { 23938687b63aSAl Viro __be32 *p; 23941da177e4SLinus Torvalds 23951da177e4SLinus Torvalds *res = 60; 23961da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 23971da177e4SLinus Torvalds return -EIO; 23981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 23991da177e4SLinus Torvalds READ_BUF(4); 24001da177e4SLinus Torvalds READ32(*res); 24011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 24021da177e4SLinus Torvalds } 24031da177e4SLinus Torvalds dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); 24041da177e4SLinus Torvalds return 0; 24051da177e4SLinus Torvalds } 24061da177e4SLinus Torvalds 24071da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 24081da177e4SLinus Torvalds { 24098687b63aSAl Viro __be32 *p; 24101da177e4SLinus Torvalds 24111da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 24121da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 24131da177e4SLinus Torvalds return -EIO; 24141da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 24151da177e4SLinus Torvalds READ_BUF(4); 24161da177e4SLinus Torvalds READ32(*res); 24171da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 24181da177e4SLinus Torvalds } 24191da177e4SLinus Torvalds dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); 24201da177e4SLinus Torvalds return 0; 24211da177e4SLinus Torvalds } 24221da177e4SLinus Torvalds 24231da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 24241da177e4SLinus Torvalds { 24258687b63aSAl Viro __be32 *p; 24261da177e4SLinus Torvalds 24271da177e4SLinus Torvalds *fileid = 0; 24281da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 24291da177e4SLinus Torvalds return -EIO; 24301da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 24311da177e4SLinus Torvalds READ_BUF(8); 24321da177e4SLinus Torvalds READ64(*fileid); 24331da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 24341da177e4SLinus Torvalds } 24351da177e4SLinus Torvalds dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 24361da177e4SLinus Torvalds return 0; 24371da177e4SLinus Torvalds } 24381da177e4SLinus Torvalds 243999baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 244099baf625SManoj Naik { 24418687b63aSAl Viro __be32 *p; 244299baf625SManoj Naik 244399baf625SManoj Naik *fileid = 0; 244499baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 244599baf625SManoj Naik return -EIO; 244699baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 244799baf625SManoj Naik READ_BUF(8); 244899baf625SManoj Naik READ64(*fileid); 244999baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 245099baf625SManoj Naik } 245199baf625SManoj Naik dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 245299baf625SManoj Naik return 0; 245399baf625SManoj Naik } 245499baf625SManoj Naik 24551da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24561da177e4SLinus Torvalds { 24578687b63aSAl Viro __be32 *p; 24581da177e4SLinus Torvalds int status = 0; 24591da177e4SLinus Torvalds 24601da177e4SLinus Torvalds *res = 0; 24611da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 24621da177e4SLinus Torvalds return -EIO; 24631da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 24641da177e4SLinus Torvalds READ_BUF(8); 24651da177e4SLinus Torvalds READ64(*res); 24661da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 24671da177e4SLinus Torvalds } 24681da177e4SLinus Torvalds dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24691da177e4SLinus Torvalds return status; 24701da177e4SLinus Torvalds } 24711da177e4SLinus Torvalds 24721da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24731da177e4SLinus Torvalds { 24748687b63aSAl Viro __be32 *p; 24751da177e4SLinus Torvalds int status = 0; 24761da177e4SLinus Torvalds 24771da177e4SLinus Torvalds *res = 0; 24781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 24791da177e4SLinus Torvalds return -EIO; 24801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 24811da177e4SLinus Torvalds READ_BUF(8); 24821da177e4SLinus Torvalds READ64(*res); 24831da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 24841da177e4SLinus Torvalds } 24851da177e4SLinus Torvalds dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24861da177e4SLinus Torvalds return status; 24871da177e4SLinus Torvalds } 24881da177e4SLinus Torvalds 24891da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24901da177e4SLinus Torvalds { 24918687b63aSAl Viro __be32 *p; 24921da177e4SLinus Torvalds int status = 0; 24931da177e4SLinus Torvalds 24941da177e4SLinus Torvalds *res = 0; 24951da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 24961da177e4SLinus Torvalds return -EIO; 24971da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 24981da177e4SLinus Torvalds READ_BUF(8); 24991da177e4SLinus Torvalds READ64(*res); 25001da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 25011da177e4SLinus Torvalds } 25021da177e4SLinus Torvalds dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 25031da177e4SLinus Torvalds return status; 25041da177e4SLinus Torvalds } 25051da177e4SLinus Torvalds 25067aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 25077aaa0b3bSManoj Naik { 25087aaa0b3bSManoj Naik int n; 25098687b63aSAl Viro __be32 *p; 25107aaa0b3bSManoj Naik int status = 0; 25117aaa0b3bSManoj Naik 25127aaa0b3bSManoj Naik READ_BUF(4); 25137aaa0b3bSManoj Naik READ32(n); 251433a43f28SAndy Adamson if (n < 0) 25157aaa0b3bSManoj Naik goto out_eio; 251633a43f28SAndy Adamson if (n == 0) 251733a43f28SAndy Adamson goto root_path; 25187aaa0b3bSManoj Naik dprintk("path "); 25197aaa0b3bSManoj Naik path->ncomponents = 0; 25207aaa0b3bSManoj Naik while (path->ncomponents < n) { 25217aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 25227aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 25237aaa0b3bSManoj Naik if (unlikely(status != 0)) 25247aaa0b3bSManoj Naik goto out_eio; 25257aaa0b3bSManoj Naik if (path->ncomponents != n) 25267aaa0b3bSManoj Naik dprintk("/"); 25277aaa0b3bSManoj Naik dprintk("%s", component->data); 25287aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 25297aaa0b3bSManoj Naik path->ncomponents++; 25307aaa0b3bSManoj Naik else { 25317aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 25327aaa0b3bSManoj Naik goto out_eio; 25337aaa0b3bSManoj Naik } 25347aaa0b3bSManoj Naik } 25357aaa0b3bSManoj Naik out: 25367aaa0b3bSManoj Naik dprintk("\n"); 25377aaa0b3bSManoj Naik return status; 253833a43f28SAndy Adamson root_path: 253933a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 254033a43f28SAndy Adamson path->ncomponents = 1; 254133a43f28SAndy Adamson path->components[0].len=0; 254233a43f28SAndy Adamson path->components[0].data=NULL; 254333a43f28SAndy Adamson dprintk("path /\n"); 254433a43f28SAndy Adamson goto out; 25457aaa0b3bSManoj Naik out_eio: 25467aaa0b3bSManoj Naik dprintk(" status %d", status); 25477aaa0b3bSManoj Naik status = -EIO; 25487aaa0b3bSManoj Naik goto out; 25497aaa0b3bSManoj Naik } 25507aaa0b3bSManoj Naik 25517aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2552683b57b4STrond Myklebust { 2553683b57b4STrond Myklebust int n; 25548687b63aSAl Viro __be32 *p; 2555683b57b4STrond Myklebust int status = -EIO; 2556683b57b4STrond Myklebust 2557683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2558683b57b4STrond Myklebust goto out; 2559683b57b4STrond Myklebust status = 0; 2560683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2561683b57b4STrond Myklebust goto out; 25627aaa0b3bSManoj Naik dprintk("%s: fsroot ", __FUNCTION__); 25637aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2564683b57b4STrond Myklebust if (unlikely(status != 0)) 2565683b57b4STrond Myklebust goto out; 2566683b57b4STrond Myklebust READ_BUF(4); 2567683b57b4STrond Myklebust READ32(n); 2568683b57b4STrond Myklebust if (n <= 0) 2569683b57b4STrond Myklebust goto out_eio; 2570683b57b4STrond Myklebust res->nlocations = 0; 2571683b57b4STrond Myklebust while (res->nlocations < n) { 25727aaa0b3bSManoj Naik int m; 25737aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2574683b57b4STrond Myklebust 25757aaa0b3bSManoj Naik READ_BUF(4); 25767aaa0b3bSManoj Naik READ32(m); 25777aaa0b3bSManoj Naik if (m <= 0) 25787aaa0b3bSManoj Naik goto out_eio; 25797aaa0b3bSManoj Naik 25807aaa0b3bSManoj Naik loc->nservers = 0; 25817aaa0b3bSManoj Naik dprintk("%s: servers ", __FUNCTION__); 25827aaa0b3bSManoj Naik while (loc->nservers < m) { 25837aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 25847aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2585683b57b4STrond Myklebust if (unlikely(status != 0)) 2586683b57b4STrond Myklebust goto out_eio; 25877aaa0b3bSManoj Naik dprintk("%s ", server->data); 25887aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 25897aaa0b3bSManoj Naik loc->nservers++; 25907aaa0b3bSManoj Naik else { 25917aaa0b3bSManoj Naik int i; 25927aaa0b3bSManoj Naik dprintk("%s: using first %d of %d servers returned for location %d\n", __FUNCTION__, NFS4_FS_LOCATION_MAXSERVERS, m, res->nlocations); 25937aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 25942e42c3e2STrond Myklebust unsigned int len; 25957aaa0b3bSManoj Naik char *data; 25967aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2597683b57b4STrond Myklebust if (unlikely(status != 0)) 2598683b57b4STrond Myklebust goto out_eio; 25997aaa0b3bSManoj Naik } 26007aaa0b3bSManoj Naik } 26017aaa0b3bSManoj Naik } 26027aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 26037aaa0b3bSManoj Naik if (unlikely(status != 0)) 26047aaa0b3bSManoj Naik goto out_eio; 26057aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2606683b57b4STrond Myklebust res->nlocations++; 2607683b57b4STrond Myklebust } 2608683b57b4STrond Myklebust out: 2609683b57b4STrond Myklebust dprintk("%s: fs_locations done, error = %d\n", __FUNCTION__, status); 2610683b57b4STrond Myklebust return status; 2611683b57b4STrond Myklebust out_eio: 2612683b57b4STrond Myklebust status = -EIO; 2613683b57b4STrond Myklebust goto out; 2614683b57b4STrond Myklebust } 2615683b57b4STrond Myklebust 26161da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 26171da177e4SLinus Torvalds { 26188687b63aSAl Viro __be32 *p; 26191da177e4SLinus Torvalds int status = 0; 26201da177e4SLinus Torvalds 26211da177e4SLinus Torvalds *res = 0; 26221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 26231da177e4SLinus Torvalds return -EIO; 26241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 26251da177e4SLinus Torvalds READ_BUF(8); 26261da177e4SLinus Torvalds READ64(*res); 26271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 26281da177e4SLinus Torvalds } 26291da177e4SLinus Torvalds dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); 26301da177e4SLinus Torvalds return status; 26311da177e4SLinus Torvalds } 26321da177e4SLinus Torvalds 26331da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 26341da177e4SLinus Torvalds { 26358687b63aSAl Viro __be32 *p; 26361da177e4SLinus Torvalds int status = 0; 26371da177e4SLinus Torvalds 26381da177e4SLinus Torvalds *maxlink = 1; 26391da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 26401da177e4SLinus Torvalds return -EIO; 26411da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 26421da177e4SLinus Torvalds READ_BUF(4); 26431da177e4SLinus Torvalds READ32(*maxlink); 26441da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 26451da177e4SLinus Torvalds } 26461da177e4SLinus Torvalds dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); 26471da177e4SLinus Torvalds return status; 26481da177e4SLinus Torvalds } 26491da177e4SLinus Torvalds 26501da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 26511da177e4SLinus Torvalds { 26528687b63aSAl Viro __be32 *p; 26531da177e4SLinus Torvalds int status = 0; 26541da177e4SLinus Torvalds 26551da177e4SLinus Torvalds *maxname = 1024; 26561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 26571da177e4SLinus Torvalds return -EIO; 26581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 26591da177e4SLinus Torvalds READ_BUF(4); 26601da177e4SLinus Torvalds READ32(*maxname); 26611da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 26621da177e4SLinus Torvalds } 26631da177e4SLinus Torvalds dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); 26641da177e4SLinus Torvalds return status; 26651da177e4SLinus Torvalds } 26661da177e4SLinus Torvalds 26671da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26681da177e4SLinus Torvalds { 26698687b63aSAl Viro __be32 *p; 26701da177e4SLinus Torvalds int status = 0; 26711da177e4SLinus Torvalds 26721da177e4SLinus Torvalds *res = 1024; 26731da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 26741da177e4SLinus Torvalds return -EIO; 26751da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 26761da177e4SLinus Torvalds uint64_t maxread; 26771da177e4SLinus Torvalds READ_BUF(8); 26781da177e4SLinus Torvalds READ64(maxread); 26791da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 26801da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 26811da177e4SLinus Torvalds *res = (uint32_t)maxread; 26821da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 26831da177e4SLinus Torvalds } 26841da177e4SLinus Torvalds dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); 26851da177e4SLinus Torvalds return status; 26861da177e4SLinus Torvalds } 26871da177e4SLinus Torvalds 26881da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26891da177e4SLinus Torvalds { 26908687b63aSAl Viro __be32 *p; 26911da177e4SLinus Torvalds int status = 0; 26921da177e4SLinus Torvalds 26931da177e4SLinus Torvalds *res = 1024; 26941da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 26951da177e4SLinus Torvalds return -EIO; 26961da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 26971da177e4SLinus Torvalds uint64_t maxwrite; 26981da177e4SLinus Torvalds READ_BUF(8); 26991da177e4SLinus Torvalds READ64(maxwrite); 27001da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 27011da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 27021da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 27031da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 27041da177e4SLinus Torvalds } 27051da177e4SLinus Torvalds dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); 27061da177e4SLinus Torvalds return status; 27071da177e4SLinus Torvalds } 27081da177e4SLinus Torvalds 27091da177e4SLinus Torvalds static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) 27101da177e4SLinus Torvalds { 27118687b63aSAl Viro __be32 *p; 27121da177e4SLinus Torvalds 27131da177e4SLinus Torvalds *mode = 0; 27141da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 27151da177e4SLinus Torvalds return -EIO; 27161da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 27171da177e4SLinus Torvalds READ_BUF(4); 27181da177e4SLinus Torvalds READ32(*mode); 27191da177e4SLinus Torvalds *mode &= ~S_IFMT; 27201da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 27211da177e4SLinus Torvalds } 27221da177e4SLinus Torvalds dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); 27231da177e4SLinus Torvalds return 0; 27241da177e4SLinus Torvalds } 27251da177e4SLinus Torvalds 27261da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 27271da177e4SLinus Torvalds { 27288687b63aSAl Viro __be32 *p; 27291da177e4SLinus Torvalds 27301da177e4SLinus Torvalds *nlink = 1; 27311da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 27321da177e4SLinus Torvalds return -EIO; 27331da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 27341da177e4SLinus Torvalds READ_BUF(4); 27351da177e4SLinus Torvalds READ32(*nlink); 27361da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 27371da177e4SLinus Torvalds } 27381da177e4SLinus Torvalds dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); 27391da177e4SLinus Torvalds return 0; 27401da177e4SLinus Torvalds } 27411da177e4SLinus Torvalds 27422e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 27431da177e4SLinus Torvalds { 27448687b63aSAl Viro uint32_t len; 27458687b63aSAl Viro __be32 *p; 27461da177e4SLinus Torvalds 27471da177e4SLinus Torvalds *uid = -2; 27481da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 27491da177e4SLinus Torvalds return -EIO; 27501da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 27511da177e4SLinus Torvalds READ_BUF(4); 27521da177e4SLinus Torvalds READ32(len); 27531da177e4SLinus Torvalds READ_BUF(len); 27541da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 27551da177e4SLinus Torvalds if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) 27561da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 27571da177e4SLinus Torvalds __FUNCTION__); 27581da177e4SLinus Torvalds } else 2759fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 27601da177e4SLinus Torvalds __FUNCTION__, len); 27611da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 27621da177e4SLinus Torvalds } 27631da177e4SLinus Torvalds dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); 27641da177e4SLinus Torvalds return 0; 27651da177e4SLinus Torvalds } 27661da177e4SLinus Torvalds 27672e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 27681da177e4SLinus Torvalds { 27698687b63aSAl Viro uint32_t len; 27708687b63aSAl Viro __be32 *p; 27711da177e4SLinus Torvalds 27721da177e4SLinus Torvalds *gid = -2; 27731da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 27741da177e4SLinus Torvalds return -EIO; 27751da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 27761da177e4SLinus Torvalds READ_BUF(4); 27771da177e4SLinus Torvalds READ32(len); 27781da177e4SLinus Torvalds READ_BUF(len); 27791da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 27801da177e4SLinus Torvalds if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) 27811da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 27821da177e4SLinus Torvalds __FUNCTION__); 27831da177e4SLinus Torvalds } else 2784fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 27851da177e4SLinus Torvalds __FUNCTION__, len); 27861da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 27871da177e4SLinus Torvalds } 27881da177e4SLinus Torvalds dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); 27891da177e4SLinus Torvalds return 0; 27901da177e4SLinus Torvalds } 27911da177e4SLinus Torvalds 27921da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 27931da177e4SLinus Torvalds { 27948687b63aSAl Viro uint32_t major = 0, minor = 0; 27958687b63aSAl Viro __be32 *p; 27961da177e4SLinus Torvalds 27971da177e4SLinus Torvalds *rdev = MKDEV(0,0); 27981da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 27991da177e4SLinus Torvalds return -EIO; 28001da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 28011da177e4SLinus Torvalds dev_t tmp; 28021da177e4SLinus Torvalds 28031da177e4SLinus Torvalds READ_BUF(8); 28041da177e4SLinus Torvalds READ32(major); 28051da177e4SLinus Torvalds READ32(minor); 28061da177e4SLinus Torvalds tmp = MKDEV(major, minor); 28071da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 28081da177e4SLinus Torvalds *rdev = tmp; 28091da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 28101da177e4SLinus Torvalds } 28111da177e4SLinus Torvalds dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); 28121da177e4SLinus Torvalds return 0; 28131da177e4SLinus Torvalds } 28141da177e4SLinus Torvalds 28151da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28161da177e4SLinus Torvalds { 28178687b63aSAl Viro __be32 *p; 28181da177e4SLinus Torvalds int status = 0; 28191da177e4SLinus Torvalds 28201da177e4SLinus Torvalds *res = 0; 28211da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 28221da177e4SLinus Torvalds return -EIO; 28231da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 28241da177e4SLinus Torvalds READ_BUF(8); 28251da177e4SLinus Torvalds READ64(*res); 28261da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 28271da177e4SLinus Torvalds } 28281da177e4SLinus Torvalds dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 28291da177e4SLinus Torvalds return status; 28301da177e4SLinus Torvalds } 28311da177e4SLinus Torvalds 28321da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28331da177e4SLinus Torvalds { 28348687b63aSAl Viro __be32 *p; 28351da177e4SLinus Torvalds int status = 0; 28361da177e4SLinus Torvalds 28371da177e4SLinus Torvalds *res = 0; 28381da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 28391da177e4SLinus Torvalds return -EIO; 28401da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 28411da177e4SLinus Torvalds READ_BUF(8); 28421da177e4SLinus Torvalds READ64(*res); 28431da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 28441da177e4SLinus Torvalds } 28451da177e4SLinus Torvalds dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 28461da177e4SLinus Torvalds return status; 28471da177e4SLinus Torvalds } 28481da177e4SLinus Torvalds 28491da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28501da177e4SLinus Torvalds { 28518687b63aSAl Viro __be32 *p; 28521da177e4SLinus Torvalds int status = 0; 28531da177e4SLinus Torvalds 28541da177e4SLinus Torvalds *res = 0; 28551da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 28561da177e4SLinus Torvalds return -EIO; 28571da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 28581da177e4SLinus Torvalds READ_BUF(8); 28591da177e4SLinus Torvalds READ64(*res); 28601da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 28611da177e4SLinus Torvalds } 28621da177e4SLinus Torvalds dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 28631da177e4SLinus Torvalds return status; 28641da177e4SLinus Torvalds } 28651da177e4SLinus Torvalds 28661da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 28671da177e4SLinus Torvalds { 28688687b63aSAl Viro __be32 *p; 28691da177e4SLinus Torvalds 28701da177e4SLinus Torvalds *used = 0; 28711da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 28721da177e4SLinus Torvalds return -EIO; 28731da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 28741da177e4SLinus Torvalds READ_BUF(8); 28751da177e4SLinus Torvalds READ64(*used); 28761da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 28771da177e4SLinus Torvalds } 28781da177e4SLinus Torvalds dprintk("%s: space used=%Lu\n", __FUNCTION__, 28791da177e4SLinus Torvalds (unsigned long long)*used); 28801da177e4SLinus Torvalds return 0; 28811da177e4SLinus Torvalds } 28821da177e4SLinus Torvalds 28831da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 28841da177e4SLinus Torvalds { 28858687b63aSAl Viro __be32 *p; 28861da177e4SLinus Torvalds uint64_t sec; 28871da177e4SLinus Torvalds uint32_t nsec; 28881da177e4SLinus Torvalds 28891da177e4SLinus Torvalds READ_BUF(12); 28901da177e4SLinus Torvalds READ64(sec); 28911da177e4SLinus Torvalds READ32(nsec); 28921da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 28931da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 28941da177e4SLinus Torvalds return 0; 28951da177e4SLinus Torvalds } 28961da177e4SLinus Torvalds 28971da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 28981da177e4SLinus Torvalds { 28991da177e4SLinus Torvalds int status = 0; 29001da177e4SLinus Torvalds 29011da177e4SLinus Torvalds time->tv_sec = 0; 29021da177e4SLinus Torvalds time->tv_nsec = 0; 29031da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 29041da177e4SLinus Torvalds return -EIO; 29051da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 29061da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 29071da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 29081da177e4SLinus Torvalds } 29091da177e4SLinus Torvalds dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); 29101da177e4SLinus Torvalds return status; 29111da177e4SLinus Torvalds } 29121da177e4SLinus Torvalds 29131da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 29141da177e4SLinus Torvalds { 29151da177e4SLinus Torvalds int status = 0; 29161da177e4SLinus Torvalds 29171da177e4SLinus Torvalds time->tv_sec = 0; 29181da177e4SLinus Torvalds time->tv_nsec = 0; 29191da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 29201da177e4SLinus Torvalds return -EIO; 29211da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 29221da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 29231da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 29241da177e4SLinus Torvalds } 29251da177e4SLinus Torvalds dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); 29261da177e4SLinus Torvalds return status; 29271da177e4SLinus Torvalds } 29281da177e4SLinus Torvalds 29291da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 29301da177e4SLinus Torvalds { 29311da177e4SLinus Torvalds int status = 0; 29321da177e4SLinus Torvalds 29331da177e4SLinus Torvalds time->tv_sec = 0; 29341da177e4SLinus Torvalds time->tv_nsec = 0; 29351da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 29361da177e4SLinus Torvalds return -EIO; 29371da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 29381da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 29391da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 29401da177e4SLinus Torvalds } 29411da177e4SLinus Torvalds dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); 29421da177e4SLinus Torvalds return status; 29431da177e4SLinus Torvalds } 29441da177e4SLinus Torvalds 29458687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 29461da177e4SLinus Torvalds { 29471da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 29481da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 29491da177e4SLinus Torvalds 29501da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 2951fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 2952fe82a183SChuck Lever "%u %c %u\n", 29531da177e4SLinus Torvalds __FUNCTION__, 29541da177e4SLinus Torvalds attrwords << 2, 29551da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 29561da177e4SLinus Torvalds nwords << 2); 29571da177e4SLinus Torvalds return -EIO; 29581da177e4SLinus Torvalds } 29591da177e4SLinus Torvalds return 0; 29601da177e4SLinus Torvalds } 29611da177e4SLinus Torvalds 29621da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 29631da177e4SLinus Torvalds { 29648687b63aSAl Viro __be32 *p; 29651da177e4SLinus Torvalds 29661da177e4SLinus Torvalds READ_BUF(20); 29671da177e4SLinus Torvalds READ32(cinfo->atomic); 29681da177e4SLinus Torvalds READ64(cinfo->before); 29691da177e4SLinus Torvalds READ64(cinfo->after); 29701da177e4SLinus Torvalds return 0; 29711da177e4SLinus Torvalds } 29721da177e4SLinus Torvalds 29731da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 29741da177e4SLinus Torvalds { 29758687b63aSAl Viro __be32 *p; 29761da177e4SLinus Torvalds uint32_t supp, acc; 29771da177e4SLinus Torvalds int status; 29781da177e4SLinus Torvalds 29791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 29801da177e4SLinus Torvalds if (status) 29811da177e4SLinus Torvalds return status; 29821da177e4SLinus Torvalds READ_BUF(8); 29831da177e4SLinus Torvalds READ32(supp); 29841da177e4SLinus Torvalds READ32(acc); 29851da177e4SLinus Torvalds access->supported = supp; 29861da177e4SLinus Torvalds access->access = acc; 29871da177e4SLinus Torvalds return 0; 29881da177e4SLinus Torvalds } 29891da177e4SLinus Torvalds 29901da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 29911da177e4SLinus Torvalds { 29928687b63aSAl Viro __be32 *p; 29931da177e4SLinus Torvalds int status; 29941da177e4SLinus Torvalds 29951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 29961da177e4SLinus Torvalds if (status) 29971da177e4SLinus Torvalds return status; 29988ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 29998ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 30001da177e4SLinus Torvalds return 0; 30011da177e4SLinus Torvalds } 30021da177e4SLinus Torvalds 30031da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 30041da177e4SLinus Torvalds { 30058687b63aSAl Viro __be32 *p; 30061da177e4SLinus Torvalds int status; 30071da177e4SLinus Torvalds 30081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 30091da177e4SLinus Torvalds if (status) 30101da177e4SLinus Torvalds return status; 30111da177e4SLinus Torvalds READ_BUF(8); 30121da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 30131da177e4SLinus Torvalds return 0; 30141da177e4SLinus Torvalds } 30151da177e4SLinus Torvalds 30161da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 30171da177e4SLinus Torvalds { 30188687b63aSAl Viro __be32 *p; 30191da177e4SLinus Torvalds uint32_t bmlen; 30201da177e4SLinus Torvalds int status; 30211da177e4SLinus Torvalds 30221da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 30231da177e4SLinus Torvalds if (status) 30241da177e4SLinus Torvalds return status; 30251da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 30261da177e4SLinus Torvalds return status; 30271da177e4SLinus Torvalds READ_BUF(4); 30281da177e4SLinus Torvalds READ32(bmlen); 30291da177e4SLinus Torvalds READ_BUF(bmlen << 2); 30301da177e4SLinus Torvalds return 0; 30311da177e4SLinus Torvalds } 30321da177e4SLinus Torvalds 30331da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 30341da177e4SLinus Torvalds { 30358687b63aSAl Viro __be32 *savep; 30361da177e4SLinus Torvalds uint32_t attrlen, 30371da177e4SLinus Torvalds bitmap[2] = {0}; 30381da177e4SLinus Torvalds int status; 30391da177e4SLinus Torvalds 30401da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30411da177e4SLinus Torvalds goto xdr_error; 30421da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30431da177e4SLinus Torvalds goto xdr_error; 30441da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30451da177e4SLinus Torvalds goto xdr_error; 30461da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 30471da177e4SLinus Torvalds goto xdr_error; 30481da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 30491da177e4SLinus Torvalds goto xdr_error; 30501da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 30511da177e4SLinus Torvalds goto xdr_error; 30521da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 30531da177e4SLinus Torvalds goto xdr_error; 30541da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30551da177e4SLinus Torvalds xdr_error: 305616c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 30571da177e4SLinus Torvalds return status; 30581da177e4SLinus Torvalds } 30591da177e4SLinus Torvalds 30601da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 30611da177e4SLinus Torvalds { 30628687b63aSAl Viro __be32 *savep; 30631da177e4SLinus Torvalds uint32_t attrlen, 30641da177e4SLinus Torvalds bitmap[2] = {0}; 30651da177e4SLinus Torvalds int status; 30661da177e4SLinus Torvalds 30671da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30681da177e4SLinus Torvalds goto xdr_error; 30691da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30701da177e4SLinus Torvalds goto xdr_error; 30711da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30721da177e4SLinus Torvalds goto xdr_error; 30731da177e4SLinus Torvalds 30741da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 30751da177e4SLinus Torvalds goto xdr_error; 30761da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 30771da177e4SLinus Torvalds goto xdr_error; 30781da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 30791da177e4SLinus Torvalds goto xdr_error; 30801da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 30811da177e4SLinus Torvalds goto xdr_error; 30821da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 30831da177e4SLinus Torvalds goto xdr_error; 30841da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 30851da177e4SLinus Torvalds goto xdr_error; 30861da177e4SLinus Torvalds 30871da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30881da177e4SLinus Torvalds xdr_error: 308916c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 30901da177e4SLinus Torvalds return status; 30911da177e4SLinus Torvalds } 30921da177e4SLinus Torvalds 30931da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 30941da177e4SLinus Torvalds { 30958687b63aSAl Viro __be32 *savep; 30961da177e4SLinus Torvalds uint32_t attrlen, 30971da177e4SLinus Torvalds bitmap[2] = {0}; 30981da177e4SLinus Torvalds int status; 30991da177e4SLinus Torvalds 31001da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31011da177e4SLinus Torvalds goto xdr_error; 31021da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31031da177e4SLinus Torvalds goto xdr_error; 31041da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 31051da177e4SLinus Torvalds goto xdr_error; 31061da177e4SLinus Torvalds 31071da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 31081da177e4SLinus Torvalds goto xdr_error; 31091da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 31101da177e4SLinus Torvalds goto xdr_error; 31111da177e4SLinus Torvalds 31121da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 31131da177e4SLinus Torvalds xdr_error: 311416c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 31151da177e4SLinus Torvalds return status; 31161da177e4SLinus Torvalds } 31171da177e4SLinus Torvalds 31181da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 31191da177e4SLinus Torvalds { 31208687b63aSAl Viro __be32 *savep; 31211da177e4SLinus Torvalds uint32_t attrlen, 31221da177e4SLinus Torvalds bitmap[2] = {0}, 31231da177e4SLinus Torvalds type; 31241da177e4SLinus Torvalds int status, fmode = 0; 312599baf625SManoj Naik uint64_t fileid; 31261da177e4SLinus Torvalds 31271da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31281da177e4SLinus Torvalds goto xdr_error; 31291da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31301da177e4SLinus Torvalds goto xdr_error; 31311da177e4SLinus Torvalds 31321da177e4SLinus Torvalds fattr->bitmap[0] = bitmap[0]; 31331da177e4SLinus Torvalds fattr->bitmap[1] = bitmap[1]; 31341da177e4SLinus Torvalds 31351da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 31361da177e4SLinus Torvalds goto xdr_error; 31371da177e4SLinus Torvalds 31381da177e4SLinus Torvalds 31391da177e4SLinus Torvalds if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) 31401da177e4SLinus Torvalds goto xdr_error; 31411da177e4SLinus Torvalds fattr->type = nfs_type2fmt[type].nfs2type; 31421da177e4SLinus Torvalds fmode = nfs_type2fmt[type].mode; 31431da177e4SLinus Torvalds 31441da177e4SLinus Torvalds if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) 31451da177e4SLinus Torvalds goto xdr_error; 31461da177e4SLinus Torvalds if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) 31471da177e4SLinus Torvalds goto xdr_error; 31488b4bdcf8STrond Myklebust if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) 31491da177e4SLinus Torvalds goto xdr_error; 31501da177e4SLinus Torvalds if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) 31511da177e4SLinus Torvalds goto xdr_error; 3152683b57b4STrond Myklebust if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 31537aaa0b3bSManoj Naik struct nfs4_fs_locations, 3154683b57b4STrond Myklebust fattr))) != 0) 3155683b57b4STrond Myklebust goto xdr_error; 31561da177e4SLinus Torvalds if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) 31571da177e4SLinus Torvalds goto xdr_error; 31581da177e4SLinus Torvalds fattr->mode |= fmode; 31591da177e4SLinus Torvalds if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) 31601da177e4SLinus Torvalds goto xdr_error; 31617539bbabSDavid Howells if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) 31621da177e4SLinus Torvalds goto xdr_error; 31637539bbabSDavid Howells if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) 31641da177e4SLinus Torvalds goto xdr_error; 31651da177e4SLinus Torvalds if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) 31661da177e4SLinus Torvalds goto xdr_error; 31671da177e4SLinus Torvalds if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) 31681da177e4SLinus Torvalds goto xdr_error; 31691da177e4SLinus Torvalds if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) 31701da177e4SLinus Torvalds goto xdr_error; 31711da177e4SLinus Torvalds if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) 31721da177e4SLinus Torvalds goto xdr_error; 31731da177e4SLinus Torvalds if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) 31741da177e4SLinus Torvalds goto xdr_error; 317599baf625SManoj Naik if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) 317699baf625SManoj Naik goto xdr_error; 317799baf625SManoj Naik if (fattr->fileid == 0 && fileid != 0) 317899baf625SManoj Naik fattr->fileid = fileid; 317933801147STrond Myklebust if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) 31801da177e4SLinus Torvalds fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; 31811da177e4SLinus Torvalds xdr_error: 318216c32b71STrond Myklebust dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); 31831da177e4SLinus Torvalds return status; 31841da177e4SLinus Torvalds } 31851da177e4SLinus Torvalds 31861da177e4SLinus Torvalds 31871da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 31881da177e4SLinus Torvalds { 31898687b63aSAl Viro __be32 *savep; 31901da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 31911da177e4SLinus Torvalds int status; 31921da177e4SLinus Torvalds 31931da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31941da177e4SLinus Torvalds goto xdr_error; 31951da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31961da177e4SLinus Torvalds goto xdr_error; 31971da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 31981da177e4SLinus Torvalds goto xdr_error; 31991da177e4SLinus Torvalds 32001da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 32011da177e4SLinus Torvalds 32021da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 32031da177e4SLinus Torvalds goto xdr_error; 32041da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 32051da177e4SLinus Torvalds goto xdr_error; 32061da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 32071da177e4SLinus Torvalds goto xdr_error; 32081da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 32091da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 32101da177e4SLinus Torvalds goto xdr_error; 32111da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 32121da177e4SLinus Torvalds 32131da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 32141da177e4SLinus Torvalds xdr_error: 321516c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 32161da177e4SLinus Torvalds return status; 32171da177e4SLinus Torvalds } 32181da177e4SLinus Torvalds 32191da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 32201da177e4SLinus Torvalds { 32218687b63aSAl Viro __be32 *p; 32221da177e4SLinus Torvalds uint32_t len; 32231da177e4SLinus Torvalds int status; 32241da177e4SLinus Torvalds 32259936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 32269936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 32279936781dSTrond Myklebust 32281da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 32291da177e4SLinus Torvalds if (status) 32301da177e4SLinus Torvalds return status; 32311da177e4SLinus Torvalds 32321da177e4SLinus Torvalds READ_BUF(4); 32331da177e4SLinus Torvalds READ32(len); 32341da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 32351da177e4SLinus Torvalds return -EIO; 32361da177e4SLinus Torvalds fh->size = len; 32371da177e4SLinus Torvalds READ_BUF(len); 32381da177e4SLinus Torvalds COPYMEM(fh->data, len); 32391da177e4SLinus Torvalds return 0; 32401da177e4SLinus Torvalds } 32411da177e4SLinus Torvalds 32421da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 32431da177e4SLinus Torvalds { 32441da177e4SLinus Torvalds int status; 32451da177e4SLinus Torvalds 32461da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 32471da177e4SLinus Torvalds if (status) 32481da177e4SLinus Torvalds return status; 32491da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 32501da177e4SLinus Torvalds } 32511da177e4SLinus Torvalds 32521da177e4SLinus Torvalds /* 32531da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 32541da177e4SLinus Torvalds */ 3255911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 32561da177e4SLinus Torvalds { 3257911d1aafSTrond Myklebust uint64_t offset, length, clientid; 32588687b63aSAl Viro __be32 *p; 3259911d1aafSTrond Myklebust uint32_t namelen, type; 32601da177e4SLinus Torvalds 32611da177e4SLinus Torvalds READ_BUF(32); 3262911d1aafSTrond Myklebust READ64(offset); 3263911d1aafSTrond Myklebust READ64(length); 3264911d1aafSTrond Myklebust READ32(type); 3265911d1aafSTrond Myklebust if (fl != NULL) { 3266911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3267911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3268911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3269911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3270911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3271911d1aafSTrond Myklebust if (type & 1) 3272911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3273911d1aafSTrond Myklebust fl->fl_pid = 0; 3274911d1aafSTrond Myklebust } 3275911d1aafSTrond Myklebust READ64(clientid); 32761da177e4SLinus Torvalds READ32(namelen); 32771da177e4SLinus Torvalds READ_BUF(namelen); 32781da177e4SLinus Torvalds return -NFS4ERR_DENIED; 32791da177e4SLinus Torvalds } 32801da177e4SLinus Torvalds 3281911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 32821da177e4SLinus Torvalds { 32838687b63aSAl Viro __be32 *p; 32841da177e4SLinus Torvalds int status; 32851da177e4SLinus Torvalds 32861da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 32871da177e4SLinus Torvalds if (status == 0) { 32888ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 32898ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 32901da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3291911d1aafSTrond Myklebust return decode_lock_denied(xdr, NULL); 32921da177e4SLinus Torvalds return status; 32931da177e4SLinus Torvalds } 32941da177e4SLinus Torvalds 3295911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 32961da177e4SLinus Torvalds { 32971da177e4SLinus Torvalds int status; 32981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 32991da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3300911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 33011da177e4SLinus Torvalds return status; 33021da177e4SLinus Torvalds } 33031da177e4SLinus Torvalds 3304911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 33051da177e4SLinus Torvalds { 33068687b63aSAl Viro __be32 *p; 33071da177e4SLinus Torvalds int status; 33081da177e4SLinus Torvalds 33091da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 33101da177e4SLinus Torvalds if (status == 0) { 33118ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33128ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33131da177e4SLinus Torvalds } 33141da177e4SLinus Torvalds return status; 33151da177e4SLinus Torvalds } 33161da177e4SLinus Torvalds 33171da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 33181da177e4SLinus Torvalds { 33191da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 33201da177e4SLinus Torvalds } 33211da177e4SLinus Torvalds 33221da177e4SLinus Torvalds /* This is too sick! */ 33231da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 33241da177e4SLinus Torvalds { 33258687b63aSAl Viro __be32 *p; 33261da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 33271da177e4SLinus Torvalds 33281da177e4SLinus Torvalds READ_BUF(12); 33291da177e4SLinus Torvalds READ32(limit_type); 33301da177e4SLinus Torvalds switch (limit_type) { 33311da177e4SLinus Torvalds case 1: 33321da177e4SLinus Torvalds READ64(*maxsize); 33331da177e4SLinus Torvalds break; 33341da177e4SLinus Torvalds case 2: 33351da177e4SLinus Torvalds READ32(nblocks); 33361da177e4SLinus Torvalds READ32(blocksize); 33371da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 33381da177e4SLinus Torvalds } 33391da177e4SLinus Torvalds return 0; 33401da177e4SLinus Torvalds } 33411da177e4SLinus Torvalds 33421da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 33431da177e4SLinus Torvalds { 33448687b63aSAl Viro __be32 *p; 33451da177e4SLinus Torvalds uint32_t delegation_type; 33461da177e4SLinus Torvalds 33471da177e4SLinus Torvalds READ_BUF(4); 33481da177e4SLinus Torvalds READ32(delegation_type); 33491da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 33501da177e4SLinus Torvalds res->delegation_type = 0; 33511da177e4SLinus Torvalds return 0; 33521da177e4SLinus Torvalds } 33538ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 33548ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 33551da177e4SLinus Torvalds READ32(res->do_recall); 33561da177e4SLinus Torvalds switch (delegation_type) { 33571da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 33581da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 33591da177e4SLinus Torvalds break; 33601da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 33611da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 33621da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 33631da177e4SLinus Torvalds return -EIO; 33641da177e4SLinus Torvalds } 33657539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 33661da177e4SLinus Torvalds } 33671da177e4SLinus Torvalds 33681da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 33691da177e4SLinus Torvalds { 33708687b63aSAl Viro __be32 *p; 3371aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 33721da177e4SLinus Torvalds int status; 33731da177e4SLinus Torvalds 33741da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 33751da177e4SLinus Torvalds if (status) 33761da177e4SLinus Torvalds return status; 33778ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33788ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33791da177e4SLinus Torvalds 33801da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 33811da177e4SLinus Torvalds 33821da177e4SLinus Torvalds READ_BUF(8); 33831da177e4SLinus Torvalds READ32(res->rflags); 33841da177e4SLinus Torvalds READ32(bmlen); 33851da177e4SLinus Torvalds if (bmlen > 10) 33861da177e4SLinus Torvalds goto xdr_error; 33871da177e4SLinus Torvalds 33881da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3389aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3390aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3391aa53ed54SJeff Layton READ32(res->attrset[i]); 3392aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3393aa53ed54SJeff Layton res->attrset[i] = 0; 3394aa53ed54SJeff Layton 33951da177e4SLinus Torvalds return decode_delegation(xdr, res); 33961da177e4SLinus Torvalds xdr_error: 339716c32b71STrond Myklebust dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); 33981da177e4SLinus Torvalds return -EIO; 33991da177e4SLinus Torvalds } 34001da177e4SLinus Torvalds 34011da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 34021da177e4SLinus Torvalds { 34038687b63aSAl Viro __be32 *p; 34041da177e4SLinus Torvalds int status; 34051da177e4SLinus Torvalds 34061da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 34071da177e4SLinus Torvalds if (status) 34081da177e4SLinus Torvalds return status; 34098ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 34108ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 34111da177e4SLinus Torvalds return 0; 34121da177e4SLinus Torvalds } 34131da177e4SLinus Torvalds 34141da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 34151da177e4SLinus Torvalds { 34168687b63aSAl Viro __be32 *p; 34171da177e4SLinus Torvalds int status; 34181da177e4SLinus Torvalds 34191da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 34201da177e4SLinus Torvalds if (status) 34211da177e4SLinus Torvalds return status; 34228ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 34238ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 34241da177e4SLinus Torvalds return 0; 34251da177e4SLinus Torvalds } 34261da177e4SLinus Torvalds 34271da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 34281da177e4SLinus Torvalds { 34291da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 34301da177e4SLinus Torvalds } 34311da177e4SLinus Torvalds 34321da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 34331da177e4SLinus Torvalds { 34341da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 34351da177e4SLinus Torvalds } 34361da177e4SLinus Torvalds 34371da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 34381da177e4SLinus Torvalds { 34391da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 34408687b63aSAl Viro __be32 *p; 34411da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 34421da177e4SLinus Torvalds int status; 34431da177e4SLinus Torvalds 34441da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 34451da177e4SLinus Torvalds if (status) 34461da177e4SLinus Torvalds return status; 34471da177e4SLinus Torvalds READ_BUF(8); 34481da177e4SLinus Torvalds READ32(eof); 34491da177e4SLinus Torvalds READ32(count); 34501da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 34511da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 34521da177e4SLinus Torvalds if (count > recvd) { 3453fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 34541da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 34551da177e4SLinus Torvalds count = recvd; 34561da177e4SLinus Torvalds eof = 0; 34571da177e4SLinus Torvalds } 34581da177e4SLinus Torvalds xdr_read_pages(xdr, count); 34591da177e4SLinus Torvalds res->eof = eof; 34601da177e4SLinus Torvalds res->count = count; 34611da177e4SLinus Torvalds return 0; 34621da177e4SLinus Torvalds } 34631da177e4SLinus Torvalds 34641da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 34651da177e4SLinus Torvalds { 34661da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 34671da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 34681da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 34691da177e4SLinus Torvalds unsigned int nr, pglen = rcvbuf->page_len; 34708687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 3471e8896495SDavid Howells uint32_t len, attrlen, xlen; 34721da177e4SLinus Torvalds int hdrlen, recvd, status; 34731da177e4SLinus Torvalds 34741da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 34751da177e4SLinus Torvalds if (status) 34761da177e4SLinus Torvalds return status; 34771da177e4SLinus Torvalds READ_BUF(8); 34781da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 3479eadf4598STrond Myklebust dprintk("%s: verifier = 0x%x%x\n", 3480eadf4598STrond Myklebust __FUNCTION__, 3481eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3482eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3483eadf4598STrond Myklebust 34841da177e4SLinus Torvalds 34851da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 34861da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 34871da177e4SLinus Torvalds if (pglen > recvd) 34881da177e4SLinus Torvalds pglen = recvd; 34891da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 34901da177e4SLinus Torvalds 34911da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 34928687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3493e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 34941da177e4SLinus Torvalds entry = p; 34951da177e4SLinus Torvalds for (nr = 0; *p++; nr++) { 3496e8896495SDavid Howells if (end - p < 3) 34971da177e4SLinus Torvalds goto short_pkt; 3498eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 34991da177e4SLinus Torvalds p += 2; /* cookie */ 35001da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 35011da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3502fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3503fe82a183SChuck Lever len); 35041da177e4SLinus Torvalds goto err_unmap; 35051da177e4SLinus Torvalds } 3506e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3507e8896495SDavid Howells if (end - p < xlen + 1) 3508e8896495SDavid Howells goto short_pkt; 3509eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3510e8896495SDavid Howells p += xlen; 35111da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3512e8896495SDavid Howells if (end - p < len + 1) 3513e8896495SDavid Howells goto short_pkt; 35141da177e4SLinus Torvalds p += len; 35151da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3516e8896495SDavid Howells if (end - p < attrlen + 2) 35171da177e4SLinus Torvalds goto short_pkt; 3518e8896495SDavid Howells p += attrlen; /* attributes */ 35191da177e4SLinus Torvalds entry = p; 35201da177e4SLinus Torvalds } 35211da177e4SLinus Torvalds if (!nr && (entry[0] != 0 || entry[1] == 0)) 35221da177e4SLinus Torvalds goto short_pkt; 35231da177e4SLinus Torvalds out: 35241da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35251da177e4SLinus Torvalds return 0; 35261da177e4SLinus Torvalds short_pkt: 3527eadf4598STrond Myklebust dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); 35281da177e4SLinus Torvalds entry[0] = entry[1] = 0; 35291da177e4SLinus Torvalds /* truncate listing ? */ 35301da177e4SLinus Torvalds if (!nr) { 3531fe82a183SChuck Lever dprintk("NFS: readdir reply truncated!\n"); 35321da177e4SLinus Torvalds entry[1] = 1; 35331da177e4SLinus Torvalds } 35341da177e4SLinus Torvalds goto out; 35351da177e4SLinus Torvalds err_unmap: 35361da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35371da177e4SLinus Torvalds return -errno_NFSERR_IO; 35381da177e4SLinus Torvalds } 35391da177e4SLinus Torvalds 35401da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 35411da177e4SLinus Torvalds { 35421da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 35431da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 35441da177e4SLinus Torvalds int hdrlen, len, recvd; 35458687b63aSAl Viro __be32 *p; 35461da177e4SLinus Torvalds char *kaddr; 35471da177e4SLinus Torvalds int status; 35481da177e4SLinus Torvalds 35491da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 35501da177e4SLinus Torvalds if (status) 35511da177e4SLinus Torvalds return status; 35521da177e4SLinus Torvalds 35531da177e4SLinus Torvalds /* Convert length of symlink */ 35541da177e4SLinus Torvalds READ_BUF(4); 35551da177e4SLinus Torvalds READ32(len); 35561da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3557fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 35581da177e4SLinus Torvalds return -ENAMETOOLONG; 35591da177e4SLinus Torvalds } 35601da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 35611da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 35621da177e4SLinus Torvalds if (recvd < len) { 3563fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 35641da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 35651da177e4SLinus Torvalds return -EIO; 35661da177e4SLinus Torvalds } 35671da177e4SLinus Torvalds xdr_read_pages(xdr, len); 35681da177e4SLinus Torvalds /* 35691da177e4SLinus Torvalds * The XDR encode routine has set things up so that 35701da177e4SLinus Torvalds * the link text will be copied directly into the 35711da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 35721da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 35731da177e4SLinus Torvalds * null-termination). 35741da177e4SLinus Torvalds */ 35751da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 35761da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 35771da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35781da177e4SLinus Torvalds return 0; 35791da177e4SLinus Torvalds } 35801da177e4SLinus Torvalds 35811da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35821da177e4SLinus Torvalds { 35831da177e4SLinus Torvalds int status; 35841da177e4SLinus Torvalds 35851da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 35861da177e4SLinus Torvalds if (status) 35871da177e4SLinus Torvalds goto out; 35881da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 35891da177e4SLinus Torvalds out: 35901da177e4SLinus Torvalds return status; 35911da177e4SLinus Torvalds } 35921da177e4SLinus Torvalds 35931da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 35941da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 35951da177e4SLinus Torvalds { 35961da177e4SLinus Torvalds int status; 35971da177e4SLinus Torvalds 35981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 35991da177e4SLinus Torvalds if (status) 36001da177e4SLinus Torvalds goto out; 36011da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 36021da177e4SLinus Torvalds goto out; 36031da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 36041da177e4SLinus Torvalds out: 36051da177e4SLinus Torvalds return status; 36061da177e4SLinus Torvalds } 36071da177e4SLinus Torvalds 36081da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 36091da177e4SLinus Torvalds { 36101da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 36111da177e4SLinus Torvalds } 36121da177e4SLinus Torvalds 361356ae19f3STrond Myklebust static int 361456ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 361556ae19f3STrond Myklebust { 361656ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 361756ae19f3STrond Myklebust } 361856ae19f3STrond Myklebust 3619029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3620029d105eSJ. Bruce Fields size_t *acl_len) 3621029d105eSJ. Bruce Fields { 36228687b63aSAl Viro __be32 *savep; 3623029d105eSJ. Bruce Fields uint32_t attrlen, 3624029d105eSJ. Bruce Fields bitmap[2] = {0}; 3625029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 3626029d105eSJ. Bruce Fields int status; 3627029d105eSJ. Bruce Fields 3628029d105eSJ. Bruce Fields *acl_len = 0; 3629029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3630029d105eSJ. Bruce Fields goto out; 3631029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3632029d105eSJ. Bruce Fields goto out; 3633029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3634029d105eSJ. Bruce Fields goto out; 3635029d105eSJ. Bruce Fields 3636029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3637029d105eSJ. Bruce Fields return -EIO; 3638029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3639029d105eSJ. Bruce Fields int hdrlen, recvd; 3640029d105eSJ. Bruce Fields 3641029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 3642029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 3643029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3644029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 3645029d105eSJ. Bruce Fields if (attrlen > recvd) { 3646fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 3647029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 3648029d105eSJ. Bruce Fields attrlen, recvd); 3649029d105eSJ. Bruce Fields return -EINVAL; 3650029d105eSJ. Bruce Fields } 3651029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 3652029d105eSJ. Bruce Fields *acl_len = attrlen; 36538c233cf9SJ. Bruce Fields } else 36548c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 3655029d105eSJ. Bruce Fields 3656029d105eSJ. Bruce Fields out: 3657029d105eSJ. Bruce Fields return status; 3658029d105eSJ. Bruce Fields } 3659029d105eSJ. Bruce Fields 36601da177e4SLinus Torvalds static int 36611da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 36621da177e4SLinus Torvalds { 36631da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 36641da177e4SLinus Torvalds } 36651da177e4SLinus Torvalds 36661da177e4SLinus Torvalds static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) 36671da177e4SLinus Torvalds { 36688687b63aSAl Viro __be32 *p; 36691da177e4SLinus Torvalds uint32_t bmlen; 36701da177e4SLinus Torvalds int status; 36711da177e4SLinus Torvalds 36721da177e4SLinus Torvalds 36731da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 36741da177e4SLinus Torvalds if (status) 36751da177e4SLinus Torvalds return status; 36761da177e4SLinus Torvalds READ_BUF(4); 36771da177e4SLinus Torvalds READ32(bmlen); 36781da177e4SLinus Torvalds READ_BUF(bmlen << 2); 36791da177e4SLinus Torvalds return 0; 36801da177e4SLinus Torvalds } 36811da177e4SLinus Torvalds 3682adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 36831da177e4SLinus Torvalds { 36848687b63aSAl Viro __be32 *p; 36851da177e4SLinus Torvalds uint32_t opnum; 36861da177e4SLinus Torvalds int32_t nfserr; 36871da177e4SLinus Torvalds 36881da177e4SLinus Torvalds READ_BUF(8); 36891da177e4SLinus Torvalds READ32(opnum); 36901da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 3691fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 36921da177e4SLinus Torvalds " %d\n", opnum); 36931da177e4SLinus Torvalds return -EIO; 36941da177e4SLinus Torvalds } 36951da177e4SLinus Torvalds READ32(nfserr); 36961da177e4SLinus Torvalds if (nfserr == NFS_OK) { 36978ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 36981da177e4SLinus Torvalds READ64(clp->cl_clientid); 36998ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 37001da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 37011da177e4SLinus Torvalds uint32_t len; 37021da177e4SLinus Torvalds 37031da177e4SLinus Torvalds /* skip netid string */ 37041da177e4SLinus Torvalds READ_BUF(4); 37051da177e4SLinus Torvalds READ32(len); 37061da177e4SLinus Torvalds READ_BUF(len); 37071da177e4SLinus Torvalds 37081da177e4SLinus Torvalds /* skip uaddr string */ 37091da177e4SLinus Torvalds READ_BUF(4); 37101da177e4SLinus Torvalds READ32(len); 37111da177e4SLinus Torvalds READ_BUF(len); 37121da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 37131da177e4SLinus Torvalds } else 37140a8ea437SDavid Howells return -nfs4_stat_to_errno(nfserr); 37151da177e4SLinus Torvalds 37161da177e4SLinus Torvalds return 0; 37171da177e4SLinus Torvalds } 37181da177e4SLinus Torvalds 37191da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 37201da177e4SLinus Torvalds { 37211da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 37221da177e4SLinus Torvalds } 37231da177e4SLinus Torvalds 37241da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 37251da177e4SLinus Torvalds { 37268687b63aSAl Viro __be32 *p; 37271da177e4SLinus Torvalds int status; 37281da177e4SLinus Torvalds 37291da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 37301da177e4SLinus Torvalds if (status) 37311da177e4SLinus Torvalds return status; 37321da177e4SLinus Torvalds 37331da177e4SLinus Torvalds READ_BUF(16); 37341da177e4SLinus Torvalds READ32(res->count); 37351da177e4SLinus Torvalds READ32(res->verf->committed); 37361da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 37371da177e4SLinus Torvalds return 0; 37381da177e4SLinus Torvalds } 37391da177e4SLinus Torvalds 37401da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 37411da177e4SLinus Torvalds { 37421da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 37431da177e4SLinus Torvalds } 37441da177e4SLinus Torvalds 37451da177e4SLinus Torvalds /* 37461da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 37471da177e4SLinus Torvalds */ 37488687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 37491da177e4SLinus Torvalds { 37501da177e4SLinus Torvalds struct xdr_stream xdr; 37511da177e4SLinus Torvalds struct compound_hdr hdr; 37521da177e4SLinus Torvalds int status; 37531da177e4SLinus Torvalds 37541da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37551da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37561da177e4SLinus Torvalds if (status) 37571da177e4SLinus Torvalds goto out; 37581da177e4SLinus Torvalds status = decode_putfh(&xdr); 37591da177e4SLinus Torvalds if (status) 37601da177e4SLinus Torvalds goto out; 37611da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 3762516a6af6STrond Myklebust if (status != 0) 3763516a6af6STrond Myklebust goto out; 3764516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 37651da177e4SLinus Torvalds out: 37661da177e4SLinus Torvalds return status; 37671da177e4SLinus Torvalds } 37681da177e4SLinus Torvalds 37691da177e4SLinus Torvalds /* 37701da177e4SLinus Torvalds * END OF "GENERIC" DECODE ROUTINES. 37711da177e4SLinus Torvalds */ 37721da177e4SLinus Torvalds 37731da177e4SLinus Torvalds /* 37741da177e4SLinus Torvalds * Decode ACCESS response 37751da177e4SLinus Torvalds */ 37768687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 37771da177e4SLinus Torvalds { 37781da177e4SLinus Torvalds struct xdr_stream xdr; 37791da177e4SLinus Torvalds struct compound_hdr hdr; 37801da177e4SLinus Torvalds int status; 37811da177e4SLinus Torvalds 37821da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37831da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37841da177e4SLinus Torvalds goto out; 37851da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) == 0) 37861da177e4SLinus Torvalds status = decode_access(&xdr, res); 37871da177e4SLinus Torvalds out: 37881da177e4SLinus Torvalds return status; 37891da177e4SLinus Torvalds } 37901da177e4SLinus Torvalds 37911da177e4SLinus Torvalds /* 37921da177e4SLinus Torvalds * Decode LOOKUP response 37931da177e4SLinus Torvalds */ 37948687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 37951da177e4SLinus Torvalds { 37961da177e4SLinus Torvalds struct xdr_stream xdr; 37971da177e4SLinus Torvalds struct compound_hdr hdr; 37981da177e4SLinus Torvalds int status; 37991da177e4SLinus Torvalds 38001da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38011da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38021da177e4SLinus Torvalds goto out; 38031da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38041da177e4SLinus Torvalds goto out; 38051da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 38061da177e4SLinus Torvalds goto out; 38071da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 38081da177e4SLinus Torvalds goto out; 38091da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38101da177e4SLinus Torvalds out: 38111da177e4SLinus Torvalds return status; 38121da177e4SLinus Torvalds } 38131da177e4SLinus Torvalds 38141da177e4SLinus Torvalds /* 38151da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 38161da177e4SLinus Torvalds */ 38178687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 38181da177e4SLinus Torvalds { 38191da177e4SLinus Torvalds struct xdr_stream xdr; 38201da177e4SLinus Torvalds struct compound_hdr hdr; 38211da177e4SLinus Torvalds int status; 38221da177e4SLinus Torvalds 38231da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38241da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38251da177e4SLinus Torvalds goto out; 38261da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 38271da177e4SLinus Torvalds goto out; 38281da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 38291da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38301da177e4SLinus Torvalds out: 38311da177e4SLinus Torvalds return status; 38321da177e4SLinus Torvalds } 38331da177e4SLinus Torvalds 38341da177e4SLinus Torvalds /* 38351da177e4SLinus Torvalds * Decode REMOVE response 38361da177e4SLinus Torvalds */ 38374fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 38381da177e4SLinus Torvalds { 38391da177e4SLinus Torvalds struct xdr_stream xdr; 38401da177e4SLinus Torvalds struct compound_hdr hdr; 38411da177e4SLinus Torvalds int status; 38421da177e4SLinus Torvalds 38431da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38441da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38451da177e4SLinus Torvalds goto out; 384616e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 384716e42959STrond Myklebust goto out; 384816e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 384916e42959STrond Myklebust goto out; 38504fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 38511da177e4SLinus Torvalds out: 38521da177e4SLinus Torvalds return status; 38531da177e4SLinus Torvalds } 38541da177e4SLinus Torvalds 38551da177e4SLinus Torvalds /* 38561da177e4SLinus Torvalds * Decode RENAME response 38571da177e4SLinus Torvalds */ 38588687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 38591da177e4SLinus Torvalds { 38601da177e4SLinus Torvalds struct xdr_stream xdr; 38611da177e4SLinus Torvalds struct compound_hdr hdr; 38621da177e4SLinus Torvalds int status; 38631da177e4SLinus Torvalds 38641da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38651da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38661da177e4SLinus Torvalds goto out; 38671da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38681da177e4SLinus Torvalds goto out; 38691da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 38701da177e4SLinus Torvalds goto out; 38711da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38721da177e4SLinus Torvalds goto out; 38736caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 38746caf2c82STrond Myklebust goto out; 38756caf2c82STrond Myklebust /* Current FH is target directory */ 38766caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 38776caf2c82STrond Myklebust goto out; 38786caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 38796caf2c82STrond Myklebust goto out; 38806caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 38811da177e4SLinus Torvalds out: 38821da177e4SLinus Torvalds return status; 38831da177e4SLinus Torvalds } 38841da177e4SLinus Torvalds 38851da177e4SLinus Torvalds /* 38861da177e4SLinus Torvalds * Decode LINK response 38871da177e4SLinus Torvalds */ 38888687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 38891da177e4SLinus Torvalds { 38901da177e4SLinus Torvalds struct xdr_stream xdr; 38911da177e4SLinus Torvalds struct compound_hdr hdr; 38921da177e4SLinus Torvalds int status; 38931da177e4SLinus Torvalds 38941da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38951da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38961da177e4SLinus Torvalds goto out; 38971da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38981da177e4SLinus Torvalds goto out; 38991da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 39001da177e4SLinus Torvalds goto out; 39011da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39021da177e4SLinus Torvalds goto out; 390391ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 390491ba2eeeSTrond Myklebust goto out; 390591ba2eeeSTrond Myklebust /* 390691ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 390791ba2eeeSTrond Myklebust * filehandle. 390891ba2eeeSTrond Myklebust */ 390991ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 391091ba2eeeSTrond Myklebust goto out; 391191ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 391291ba2eeeSTrond Myklebust goto out; 391391ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 39141da177e4SLinus Torvalds out: 39151da177e4SLinus Torvalds return status; 39161da177e4SLinus Torvalds } 39171da177e4SLinus Torvalds 39181da177e4SLinus Torvalds /* 39191da177e4SLinus Torvalds * Decode CREATE response 39201da177e4SLinus Torvalds */ 39218687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39221da177e4SLinus Torvalds { 39231da177e4SLinus Torvalds struct xdr_stream xdr; 39241da177e4SLinus Torvalds struct compound_hdr hdr; 39251da177e4SLinus Torvalds int status; 39261da177e4SLinus Torvalds 39271da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39281da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 39291da177e4SLinus Torvalds goto out; 39301da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39311da177e4SLinus Torvalds goto out; 393256ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 393356ae19f3STrond Myklebust goto out; 39341da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 39351da177e4SLinus Torvalds goto out; 39361da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 39371da177e4SLinus Torvalds goto out; 393856ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 393956ae19f3STrond Myklebust goto out; 394056ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 394156ae19f3STrond Myklebust goto out; 394256ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 39431da177e4SLinus Torvalds out: 39441da177e4SLinus Torvalds return status; 39451da177e4SLinus Torvalds } 39461da177e4SLinus Torvalds 39471da177e4SLinus Torvalds /* 39481da177e4SLinus Torvalds * Decode SYMLINK response 39491da177e4SLinus Torvalds */ 39508687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39511da177e4SLinus Torvalds { 39521da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 39531da177e4SLinus Torvalds } 39541da177e4SLinus Torvalds 39551da177e4SLinus Torvalds /* 39561da177e4SLinus Torvalds * Decode GETATTR response 39571da177e4SLinus Torvalds */ 39588687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 39591da177e4SLinus Torvalds { 39601da177e4SLinus Torvalds struct xdr_stream xdr; 39611da177e4SLinus Torvalds struct compound_hdr hdr; 39621da177e4SLinus Torvalds int status; 39631da177e4SLinus Torvalds 39641da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39651da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39661da177e4SLinus Torvalds if (status) 39671da177e4SLinus Torvalds goto out; 39681da177e4SLinus Torvalds status = decode_putfh(&xdr); 39691da177e4SLinus Torvalds if (status) 39701da177e4SLinus Torvalds goto out; 39711da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 39721da177e4SLinus Torvalds out: 39731da177e4SLinus Torvalds return status; 39741da177e4SLinus Torvalds 39751da177e4SLinus Torvalds } 39761da177e4SLinus Torvalds 397723ec6965SJ. Bruce Fields /* 397823ec6965SJ. Bruce Fields * Encode an SETACL request 397923ec6965SJ. Bruce Fields */ 398023ec6965SJ. Bruce Fields static int 39818687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 398223ec6965SJ. Bruce Fields { 398323ec6965SJ. Bruce Fields struct xdr_stream xdr; 398423ec6965SJ. Bruce Fields struct compound_hdr hdr = { 398523ec6965SJ. Bruce Fields .nops = 2, 398623ec6965SJ. Bruce Fields }; 398723ec6965SJ. Bruce Fields int status; 398823ec6965SJ. Bruce Fields 398923ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 399023ec6965SJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 399123ec6965SJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 399223ec6965SJ. Bruce Fields if (status) 399323ec6965SJ. Bruce Fields goto out; 399423ec6965SJ. Bruce Fields status = encode_setacl(&xdr, args); 399523ec6965SJ. Bruce Fields out: 399623ec6965SJ. Bruce Fields return status; 399723ec6965SJ. Bruce Fields } 399823ec6965SJ. Bruce Fields /* 399923ec6965SJ. Bruce Fields * Decode SETACL response 400023ec6965SJ. Bruce Fields */ 400123ec6965SJ. Bruce Fields static int 40028687b63aSAl Viro nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) 400323ec6965SJ. Bruce Fields { 400423ec6965SJ. Bruce Fields struct xdr_stream xdr; 400523ec6965SJ. Bruce Fields struct compound_hdr hdr; 400623ec6965SJ. Bruce Fields int status; 400723ec6965SJ. Bruce Fields 400823ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 400923ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 401023ec6965SJ. Bruce Fields if (status) 401123ec6965SJ. Bruce Fields goto out; 401223ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 401323ec6965SJ. Bruce Fields if (status) 401423ec6965SJ. Bruce Fields goto out; 401523ec6965SJ. Bruce Fields status = decode_setattr(&xdr, res); 401623ec6965SJ. Bruce Fields out: 401723ec6965SJ. Bruce Fields return status; 401823ec6965SJ. Bruce Fields } 40191da177e4SLinus Torvalds 40201da177e4SLinus Torvalds /* 4021029d105eSJ. Bruce Fields * Decode GETACL response 4022029d105eSJ. Bruce Fields */ 4023029d105eSJ. Bruce Fields static int 40248687b63aSAl Viro nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) 4025029d105eSJ. Bruce Fields { 4026029d105eSJ. Bruce Fields struct xdr_stream xdr; 4027029d105eSJ. Bruce Fields struct compound_hdr hdr; 4028029d105eSJ. Bruce Fields int status; 4029029d105eSJ. Bruce Fields 4030029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4031029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4032029d105eSJ. Bruce Fields if (status) 4033029d105eSJ. Bruce Fields goto out; 4034029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4035029d105eSJ. Bruce Fields if (status) 4036029d105eSJ. Bruce Fields goto out; 4037029d105eSJ. Bruce Fields status = decode_getacl(&xdr, rqstp, acl_len); 4038029d105eSJ. Bruce Fields 4039029d105eSJ. Bruce Fields out: 4040029d105eSJ. Bruce Fields return status; 4041029d105eSJ. Bruce Fields } 4042029d105eSJ. Bruce Fields 4043029d105eSJ. Bruce Fields /* 40441da177e4SLinus Torvalds * Decode CLOSE response 40451da177e4SLinus Torvalds */ 40468687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 40471da177e4SLinus Torvalds { 40481da177e4SLinus Torvalds struct xdr_stream xdr; 40491da177e4SLinus Torvalds struct compound_hdr hdr; 40501da177e4SLinus Torvalds int status; 40511da177e4SLinus Torvalds 40521da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40531da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40541da177e4SLinus Torvalds if (status) 40551da177e4SLinus Torvalds goto out; 40561da177e4SLinus Torvalds status = decode_putfh(&xdr); 40571da177e4SLinus Torvalds if (status) 40581da177e4SLinus Torvalds goto out; 40591da177e4SLinus Torvalds status = decode_close(&xdr, res); 4060516a6af6STrond Myklebust if (status != 0) 4061516a6af6STrond Myklebust goto out; 4062516a6af6STrond Myklebust /* 4063516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4064516a6af6STrond Myklebust * in which case the getattr call will fail with 4065516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4066516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4067516a6af6STrond Myklebust */ 4068516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 40691da177e4SLinus Torvalds out: 40701da177e4SLinus Torvalds return status; 40711da177e4SLinus Torvalds } 40721da177e4SLinus Torvalds 40731da177e4SLinus Torvalds /* 40741da177e4SLinus Torvalds * Decode OPEN response 40751da177e4SLinus Torvalds */ 40768687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 40771da177e4SLinus Torvalds { 40781da177e4SLinus Torvalds struct xdr_stream xdr; 40791da177e4SLinus Torvalds struct compound_hdr hdr; 40801da177e4SLinus Torvalds int status; 40811da177e4SLinus Torvalds 40821da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40831da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40841da177e4SLinus Torvalds if (status) 40851da177e4SLinus Torvalds goto out; 40861da177e4SLinus Torvalds status = decode_putfh(&xdr); 40871da177e4SLinus Torvalds if (status) 40881da177e4SLinus Torvalds goto out; 408956ae19f3STrond Myklebust status = decode_savefh(&xdr); 409056ae19f3STrond Myklebust if (status) 409156ae19f3STrond Myklebust goto out; 40921da177e4SLinus Torvalds status = decode_open(&xdr, res); 40931da177e4SLinus Torvalds if (status) 40941da177e4SLinus Torvalds goto out; 40959936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 40961da177e4SLinus Torvalds goto out; 409756ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 409856ae19f3STrond Myklebust goto out; 4099365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 410056ae19f3STrond Myklebust goto out; 410156ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 41021da177e4SLinus Torvalds out: 41031da177e4SLinus Torvalds return status; 41041da177e4SLinus Torvalds } 41051da177e4SLinus Torvalds 41061da177e4SLinus Torvalds /* 41071da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 41081da177e4SLinus Torvalds */ 41098687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 41101da177e4SLinus Torvalds { 41111da177e4SLinus Torvalds struct xdr_stream xdr; 41121da177e4SLinus Torvalds struct compound_hdr hdr; 41131da177e4SLinus Torvalds int status; 41141da177e4SLinus Torvalds 41151da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41161da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41171da177e4SLinus Torvalds if (status) 41181da177e4SLinus Torvalds goto out; 41191da177e4SLinus Torvalds status = decode_putfh(&xdr); 41201da177e4SLinus Torvalds if (status) 41211da177e4SLinus Torvalds goto out; 41221da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 41231da177e4SLinus Torvalds out: 41241da177e4SLinus Torvalds return status; 41251da177e4SLinus Torvalds } 41261da177e4SLinus Torvalds 41271da177e4SLinus Torvalds /* 41281da177e4SLinus Torvalds * Decode OPEN response 41291da177e4SLinus Torvalds */ 41308687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 41311da177e4SLinus Torvalds { 41321da177e4SLinus Torvalds struct xdr_stream xdr; 41331da177e4SLinus Torvalds struct compound_hdr hdr; 41341da177e4SLinus Torvalds int status; 41351da177e4SLinus Torvalds 41361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41371da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41381da177e4SLinus Torvalds if (status) 41391da177e4SLinus Torvalds goto out; 41401da177e4SLinus Torvalds status = decode_putfh(&xdr); 41411da177e4SLinus Torvalds if (status) 41421da177e4SLinus Torvalds goto out; 41431da177e4SLinus Torvalds status = decode_open(&xdr, res); 4144864472e9STrond Myklebust if (status) 4145864472e9STrond Myklebust goto out; 4146864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 41471da177e4SLinus Torvalds out: 41481da177e4SLinus Torvalds return status; 41491da177e4SLinus Torvalds } 41501da177e4SLinus Torvalds 41511da177e4SLinus Torvalds /* 41521da177e4SLinus Torvalds * Decode SETATTR response 41531da177e4SLinus Torvalds */ 41548687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 41551da177e4SLinus Torvalds { 41561da177e4SLinus Torvalds struct xdr_stream xdr; 41571da177e4SLinus Torvalds struct compound_hdr hdr; 41581da177e4SLinus Torvalds int status; 41591da177e4SLinus Torvalds 41601da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41611da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41621da177e4SLinus Torvalds if (status) 41631da177e4SLinus Torvalds goto out; 41641da177e4SLinus Torvalds status = decode_putfh(&xdr); 41651da177e4SLinus Torvalds if (status) 41661da177e4SLinus Torvalds goto out; 41671da177e4SLinus Torvalds status = decode_setattr(&xdr, res); 41681da177e4SLinus Torvalds if (status) 41691da177e4SLinus Torvalds goto out; 41701da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 41711da177e4SLinus Torvalds if (status == NFS4ERR_DELAY) 41721da177e4SLinus Torvalds status = 0; 41731da177e4SLinus Torvalds out: 41741da177e4SLinus Torvalds return status; 41751da177e4SLinus Torvalds } 41761da177e4SLinus Torvalds 41771da177e4SLinus Torvalds /* 41781da177e4SLinus Torvalds * Decode LOCK response 41791da177e4SLinus Torvalds */ 41808687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 41811da177e4SLinus Torvalds { 41821da177e4SLinus Torvalds struct xdr_stream xdr; 41831da177e4SLinus Torvalds struct compound_hdr hdr; 41841da177e4SLinus Torvalds int status; 41851da177e4SLinus Torvalds 41861da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41871da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41881da177e4SLinus Torvalds if (status) 41891da177e4SLinus Torvalds goto out; 41901da177e4SLinus Torvalds status = decode_putfh(&xdr); 41911da177e4SLinus Torvalds if (status) 41921da177e4SLinus Torvalds goto out; 41931da177e4SLinus Torvalds status = decode_lock(&xdr, res); 41941da177e4SLinus Torvalds out: 41951da177e4SLinus Torvalds return status; 41961da177e4SLinus Torvalds } 41971da177e4SLinus Torvalds 41981da177e4SLinus Torvalds /* 41991da177e4SLinus Torvalds * Decode LOCKT response 42001da177e4SLinus Torvalds */ 42018687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 42021da177e4SLinus Torvalds { 42031da177e4SLinus Torvalds struct xdr_stream xdr; 42041da177e4SLinus Torvalds struct compound_hdr hdr; 42051da177e4SLinus Torvalds int status; 42061da177e4SLinus Torvalds 42071da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42081da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42091da177e4SLinus Torvalds if (status) 42101da177e4SLinus Torvalds goto out; 42111da177e4SLinus Torvalds status = decode_putfh(&xdr); 42121da177e4SLinus Torvalds if (status) 42131da177e4SLinus Torvalds goto out; 42141da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 42151da177e4SLinus Torvalds out: 42161da177e4SLinus Torvalds return status; 42171da177e4SLinus Torvalds } 42181da177e4SLinus Torvalds 42191da177e4SLinus Torvalds /* 42201da177e4SLinus Torvalds * Decode LOCKU response 42211da177e4SLinus Torvalds */ 42228687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 42231da177e4SLinus Torvalds { 42241da177e4SLinus Torvalds struct xdr_stream xdr; 42251da177e4SLinus Torvalds struct compound_hdr hdr; 42261da177e4SLinus Torvalds int status; 42271da177e4SLinus Torvalds 42281da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42291da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42301da177e4SLinus Torvalds if (status) 42311da177e4SLinus Torvalds goto out; 42321da177e4SLinus Torvalds status = decode_putfh(&xdr); 42331da177e4SLinus Torvalds if (status) 42341da177e4SLinus Torvalds goto out; 42351da177e4SLinus Torvalds status = decode_locku(&xdr, res); 42361da177e4SLinus Torvalds out: 42371da177e4SLinus Torvalds return status; 42381da177e4SLinus Torvalds } 42391da177e4SLinus Torvalds 42401da177e4SLinus Torvalds /* 42411da177e4SLinus Torvalds * Decode READLINK response 42421da177e4SLinus Torvalds */ 42438687b63aSAl Viro static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) 42441da177e4SLinus Torvalds { 42451da177e4SLinus Torvalds struct xdr_stream xdr; 42461da177e4SLinus Torvalds struct compound_hdr hdr; 42471da177e4SLinus Torvalds int status; 42481da177e4SLinus Torvalds 42491da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42501da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42511da177e4SLinus Torvalds if (status) 42521da177e4SLinus Torvalds goto out; 42531da177e4SLinus Torvalds status = decode_putfh(&xdr); 42541da177e4SLinus Torvalds if (status) 42551da177e4SLinus Torvalds goto out; 42561da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 42571da177e4SLinus Torvalds out: 42581da177e4SLinus Torvalds return status; 42591da177e4SLinus Torvalds } 42601da177e4SLinus Torvalds 42611da177e4SLinus Torvalds /* 42621da177e4SLinus Torvalds * Decode READDIR response 42631da177e4SLinus Torvalds */ 42648687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 42651da177e4SLinus Torvalds { 42661da177e4SLinus Torvalds struct xdr_stream xdr; 42671da177e4SLinus Torvalds struct compound_hdr hdr; 42681da177e4SLinus Torvalds int status; 42691da177e4SLinus Torvalds 42701da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42711da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42721da177e4SLinus Torvalds if (status) 42731da177e4SLinus Torvalds goto out; 42741da177e4SLinus Torvalds status = decode_putfh(&xdr); 42751da177e4SLinus Torvalds if (status) 42761da177e4SLinus Torvalds goto out; 42771da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 42781da177e4SLinus Torvalds out: 42791da177e4SLinus Torvalds return status; 42801da177e4SLinus Torvalds } 42811da177e4SLinus Torvalds 42821da177e4SLinus Torvalds /* 42831da177e4SLinus Torvalds * Decode Read response 42841da177e4SLinus Torvalds */ 42858687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 42861da177e4SLinus Torvalds { 42871da177e4SLinus Torvalds struct xdr_stream xdr; 42881da177e4SLinus Torvalds struct compound_hdr hdr; 42891da177e4SLinus Torvalds int status; 42901da177e4SLinus Torvalds 42911da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42921da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42931da177e4SLinus Torvalds if (status) 42941da177e4SLinus Torvalds goto out; 42951da177e4SLinus Torvalds status = decode_putfh(&xdr); 42961da177e4SLinus Torvalds if (status) 42971da177e4SLinus Torvalds goto out; 42981da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 42991da177e4SLinus Torvalds if (!status) 43001da177e4SLinus Torvalds status = res->count; 43011da177e4SLinus Torvalds out: 43021da177e4SLinus Torvalds return status; 43031da177e4SLinus Torvalds } 43041da177e4SLinus Torvalds 43051da177e4SLinus Torvalds /* 43061da177e4SLinus Torvalds * Decode WRITE response 43071da177e4SLinus Torvalds */ 43088687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 43091da177e4SLinus Torvalds { 43101da177e4SLinus Torvalds struct xdr_stream xdr; 43111da177e4SLinus Torvalds struct compound_hdr hdr; 43121da177e4SLinus Torvalds int status; 43131da177e4SLinus Torvalds 43141da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43151da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43161da177e4SLinus Torvalds if (status) 43171da177e4SLinus Torvalds goto out; 43181da177e4SLinus Torvalds status = decode_putfh(&xdr); 43191da177e4SLinus Torvalds if (status) 43201da177e4SLinus Torvalds goto out; 43211da177e4SLinus Torvalds status = decode_write(&xdr, res); 43224f9838c7STrond Myklebust if (status) 43234f9838c7STrond Myklebust goto out; 43244f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43251da177e4SLinus Torvalds if (!status) 43261da177e4SLinus Torvalds status = res->count; 43271da177e4SLinus Torvalds out: 43281da177e4SLinus Torvalds return status; 43291da177e4SLinus Torvalds } 43301da177e4SLinus Torvalds 43311da177e4SLinus Torvalds /* 43321da177e4SLinus Torvalds * Decode COMMIT response 43331da177e4SLinus Torvalds */ 43348687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 43351da177e4SLinus Torvalds { 43361da177e4SLinus Torvalds struct xdr_stream xdr; 43371da177e4SLinus Torvalds struct compound_hdr hdr; 43381da177e4SLinus Torvalds int status; 43391da177e4SLinus Torvalds 43401da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43411da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43421da177e4SLinus Torvalds if (status) 43431da177e4SLinus Torvalds goto out; 43441da177e4SLinus Torvalds status = decode_putfh(&xdr); 43451da177e4SLinus Torvalds if (status) 43461da177e4SLinus Torvalds goto out; 43471da177e4SLinus Torvalds status = decode_commit(&xdr, res); 43484f9838c7STrond Myklebust if (status) 43494f9838c7STrond Myklebust goto out; 43504f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43511da177e4SLinus Torvalds out: 43521da177e4SLinus Torvalds return status; 43531da177e4SLinus Torvalds } 43541da177e4SLinus Torvalds 43551da177e4SLinus Torvalds /* 43561da177e4SLinus Torvalds * FSINFO request 43571da177e4SLinus Torvalds */ 43588687b63aSAl Viro static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 43591da177e4SLinus Torvalds { 43601da177e4SLinus Torvalds struct xdr_stream xdr; 43611da177e4SLinus Torvalds struct compound_hdr hdr; 43621da177e4SLinus Torvalds int status; 43631da177e4SLinus Torvalds 43641da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43651da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43661da177e4SLinus Torvalds if (!status) 43671da177e4SLinus Torvalds status = decode_putfh(&xdr); 43681da177e4SLinus Torvalds if (!status) 43691da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 43701da177e4SLinus Torvalds if (!status) 43710a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 43721da177e4SLinus Torvalds return status; 43731da177e4SLinus Torvalds } 43741da177e4SLinus Torvalds 43751da177e4SLinus Torvalds /* 43761da177e4SLinus Torvalds * PATHCONF request 43771da177e4SLinus Torvalds */ 43788687b63aSAl Viro static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) 43791da177e4SLinus Torvalds { 43801da177e4SLinus Torvalds struct xdr_stream xdr; 43811da177e4SLinus Torvalds struct compound_hdr hdr; 43821da177e4SLinus Torvalds int status; 43831da177e4SLinus Torvalds 43841da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43851da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43861da177e4SLinus Torvalds if (!status) 43871da177e4SLinus Torvalds status = decode_putfh(&xdr); 43881da177e4SLinus Torvalds if (!status) 43891da177e4SLinus Torvalds status = decode_pathconf(&xdr, pathconf); 43901da177e4SLinus Torvalds return status; 43911da177e4SLinus Torvalds } 43921da177e4SLinus Torvalds 43931da177e4SLinus Torvalds /* 43941da177e4SLinus Torvalds * STATFS request 43951da177e4SLinus Torvalds */ 43968687b63aSAl Viro static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) 43971da177e4SLinus Torvalds { 43981da177e4SLinus Torvalds struct xdr_stream xdr; 43991da177e4SLinus Torvalds struct compound_hdr hdr; 44001da177e4SLinus Torvalds int status; 44011da177e4SLinus Torvalds 44021da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44031da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44041da177e4SLinus Torvalds if (!status) 44051da177e4SLinus Torvalds status = decode_putfh(&xdr); 44061da177e4SLinus Torvalds if (!status) 44071da177e4SLinus Torvalds status = decode_statfs(&xdr, fsstat); 44081da177e4SLinus Torvalds return status; 44091da177e4SLinus Torvalds } 44101da177e4SLinus Torvalds 44111da177e4SLinus Torvalds /* 44121da177e4SLinus Torvalds * GETATTR_BITMAP request 44131da177e4SLinus Torvalds */ 44148687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 44151da177e4SLinus Torvalds { 44161da177e4SLinus Torvalds struct xdr_stream xdr; 44171da177e4SLinus Torvalds struct compound_hdr hdr; 44181da177e4SLinus Torvalds int status; 44191da177e4SLinus Torvalds 44201da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44211da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 44221da177e4SLinus Torvalds goto out; 44231da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44241da177e4SLinus Torvalds goto out; 44251da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 44261da177e4SLinus Torvalds out: 44271da177e4SLinus Torvalds return status; 44281da177e4SLinus Torvalds } 44291da177e4SLinus Torvalds 44301da177e4SLinus Torvalds /* 44311da177e4SLinus Torvalds * Decode RENEW response 44321da177e4SLinus Torvalds */ 44338687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 44341da177e4SLinus Torvalds { 44351da177e4SLinus Torvalds struct xdr_stream xdr; 44361da177e4SLinus Torvalds struct compound_hdr hdr; 44371da177e4SLinus Torvalds int status; 44381da177e4SLinus Torvalds 44391da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44401da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44411da177e4SLinus Torvalds if (!status) 44421da177e4SLinus Torvalds status = decode_renew(&xdr); 44431da177e4SLinus Torvalds return status; 44441da177e4SLinus Torvalds } 44451da177e4SLinus Torvalds 44461da177e4SLinus Torvalds /* 44471da177e4SLinus Torvalds * a SETCLIENTID request 44481da177e4SLinus Torvalds */ 44498687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 4450adfa6f98SDavid Howells struct nfs_client *clp) 44511da177e4SLinus Torvalds { 44521da177e4SLinus Torvalds struct xdr_stream xdr; 44531da177e4SLinus Torvalds struct compound_hdr hdr; 44541da177e4SLinus Torvalds int status; 44551da177e4SLinus Torvalds 44561da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44571da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44581da177e4SLinus Torvalds if (!status) 44591da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 44601da177e4SLinus Torvalds if (!status) 44610a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 44621da177e4SLinus Torvalds return status; 44631da177e4SLinus Torvalds } 44641da177e4SLinus Torvalds 44651da177e4SLinus Torvalds /* 44661da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 44671da177e4SLinus Torvalds */ 44688687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 44691da177e4SLinus Torvalds { 44701da177e4SLinus Torvalds struct xdr_stream xdr; 44711da177e4SLinus Torvalds struct compound_hdr hdr; 44721da177e4SLinus Torvalds int status; 44731da177e4SLinus Torvalds 44741da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44751da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44761da177e4SLinus Torvalds if (!status) 44771da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 44781da177e4SLinus Torvalds if (!status) 44791da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 44801da177e4SLinus Torvalds if (!status) 44811da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 44821da177e4SLinus Torvalds if (!status) 44830a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 44841da177e4SLinus Torvalds return status; 44851da177e4SLinus Torvalds } 44861da177e4SLinus Torvalds 44871da177e4SLinus Torvalds /* 44881da177e4SLinus Torvalds * DELEGRETURN request 44891da177e4SLinus Torvalds */ 44908687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 44911da177e4SLinus Torvalds { 44921da177e4SLinus Torvalds struct xdr_stream xdr; 44931da177e4SLinus Torvalds struct compound_hdr hdr; 44941da177e4SLinus Torvalds int status; 44951da177e4SLinus Torvalds 44961da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44971da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 4498fa178f29STrond Myklebust if (status != 0) 4499fa178f29STrond Myklebust goto out; 45001da177e4SLinus Torvalds status = decode_putfh(&xdr); 4501fa178f29STrond Myklebust if (status != 0) 4502fa178f29STrond Myklebust goto out; 45031da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 4504fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 4505fa178f29STrond Myklebust out: 45061da177e4SLinus Torvalds return status; 45071da177e4SLinus Torvalds } 45081da177e4SLinus Torvalds 4509683b57b4STrond Myklebust /* 4510683b57b4STrond Myklebust * FS_LOCATIONS request 4511683b57b4STrond Myklebust */ 45128687b63aSAl Viro static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) 4513683b57b4STrond Myklebust { 4514683b57b4STrond Myklebust struct xdr_stream xdr; 4515683b57b4STrond Myklebust struct compound_hdr hdr; 4516683b57b4STrond Myklebust int status; 4517683b57b4STrond Myklebust 4518683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4519683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 4520683b57b4STrond Myklebust if (status != 0) 4521683b57b4STrond Myklebust goto out; 4522683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 4523683b57b4STrond Myklebust goto out; 4524683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 4525683b57b4STrond Myklebust goto out; 4526683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 4527683b57b4STrond Myklebust status = decode_getfattr(&xdr, &res->fattr, res->server); 4528683b57b4STrond Myklebust out: 4529683b57b4STrond Myklebust return status; 4530683b57b4STrond Myklebust } 4531683b57b4STrond Myklebust 45320dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 45331da177e4SLinus Torvalds { 45341da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 45351da177e4SLinus Torvalds uint32_t len; 45361da177e4SLinus Torvalds 45371da177e4SLinus Torvalds if (!*p++) { 45381da177e4SLinus Torvalds if (!*p) 45391da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 45401da177e4SLinus Torvalds entry->eof = 1; 45411da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 45421da177e4SLinus Torvalds } 45431da177e4SLinus Torvalds 45441da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 45451da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 45461da177e4SLinus Torvalds entry->len = ntohl(*p++); 45471da177e4SLinus Torvalds entry->name = (const char *) p; 45481da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 45491da177e4SLinus Torvalds 45501da177e4SLinus Torvalds /* 45511da177e4SLinus Torvalds * In case the server doesn't return an inode number, 45521da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 45531da177e4SLinus Torvalds * since glibc seems to choke on it...) 45541da177e4SLinus Torvalds */ 45551da177e4SLinus Torvalds entry->ino = 1; 45561da177e4SLinus Torvalds 45571da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 45581da177e4SLinus Torvalds if (len-- > 0) { 45591da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 45601da177e4SLinus Torvalds if (len-- > 0) { 45611da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 45621da177e4SLinus Torvalds p += len; 45631da177e4SLinus Torvalds } 45641da177e4SLinus Torvalds } 45651da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 45661da177e4SLinus Torvalds if (len > 0) { 456797d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 456897d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 456997d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 457097d312d0SManoj Naik p++; 457197d312d0SManoj Naik len--; 457297d312d0SManoj Naik } 45731da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 45741da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45751da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 45761da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45771da177e4SLinus Torvalds p += len; 45781da177e4SLinus Torvalds } 45791da177e4SLinus Torvalds 45801da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 45811da177e4SLinus Torvalds return p; 45821da177e4SLinus Torvalds } 45831da177e4SLinus Torvalds 45841da177e4SLinus Torvalds /* 45851da177e4SLinus Torvalds * We need to translate between nfs status return values and 45861da177e4SLinus Torvalds * the local errno values which may not be the same. 45871da177e4SLinus Torvalds */ 45881da177e4SLinus Torvalds static struct { 45891da177e4SLinus Torvalds int stat; 45901da177e4SLinus Torvalds int errno; 45911da177e4SLinus Torvalds } nfs_errtbl[] = { 45921da177e4SLinus Torvalds { NFS4_OK, 0 }, 45931da177e4SLinus Torvalds { NFS4ERR_PERM, EPERM }, 45941da177e4SLinus Torvalds { NFS4ERR_NOENT, ENOENT }, 45951da177e4SLinus Torvalds { NFS4ERR_IO, errno_NFSERR_IO }, 45961da177e4SLinus Torvalds { NFS4ERR_NXIO, ENXIO }, 45971da177e4SLinus Torvalds { NFS4ERR_ACCESS, EACCES }, 45981da177e4SLinus Torvalds { NFS4ERR_EXIST, EEXIST }, 45991da177e4SLinus Torvalds { NFS4ERR_XDEV, EXDEV }, 46001da177e4SLinus Torvalds { NFS4ERR_NOTDIR, ENOTDIR }, 46011da177e4SLinus Torvalds { NFS4ERR_ISDIR, EISDIR }, 46021da177e4SLinus Torvalds { NFS4ERR_INVAL, EINVAL }, 46031da177e4SLinus Torvalds { NFS4ERR_FBIG, EFBIG }, 46041da177e4SLinus Torvalds { NFS4ERR_NOSPC, ENOSPC }, 46051da177e4SLinus Torvalds { NFS4ERR_ROFS, EROFS }, 46061da177e4SLinus Torvalds { NFS4ERR_MLINK, EMLINK }, 46071da177e4SLinus Torvalds { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, 46081da177e4SLinus Torvalds { NFS4ERR_NOTEMPTY, ENOTEMPTY }, 46091da177e4SLinus Torvalds { NFS4ERR_DQUOT, EDQUOT }, 46101da177e4SLinus Torvalds { NFS4ERR_STALE, ESTALE }, 46111da177e4SLinus Torvalds { NFS4ERR_BADHANDLE, EBADHANDLE }, 46126ebf3656SManoj Naik { NFS4ERR_BADOWNER, EINVAL }, 46136ebf3656SManoj Naik { NFS4ERR_BADNAME, EINVAL }, 46141da177e4SLinus Torvalds { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, 46151da177e4SLinus Torvalds { NFS4ERR_NOTSUPP, ENOTSUPP }, 46161da177e4SLinus Torvalds { NFS4ERR_TOOSMALL, ETOOSMALL }, 46171da177e4SLinus Torvalds { NFS4ERR_SERVERFAULT, ESERVERFAULT }, 46181da177e4SLinus Torvalds { NFS4ERR_BADTYPE, EBADTYPE }, 46191da177e4SLinus Torvalds { NFS4ERR_LOCKED, EAGAIN }, 46201da177e4SLinus Torvalds { NFS4ERR_RESOURCE, EREMOTEIO }, 46211da177e4SLinus Torvalds { NFS4ERR_SYMLINK, ELOOP }, 46221da177e4SLinus Torvalds { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, 46231da177e4SLinus Torvalds { NFS4ERR_DEADLOCK, EDEADLK }, 46241da177e4SLinus Torvalds { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs 46251da177e4SLinus Torvalds * to be handled by a 46261da177e4SLinus Torvalds * middle-layer. 46271da177e4SLinus Torvalds */ 46281da177e4SLinus Torvalds { -1, EIO } 46291da177e4SLinus Torvalds }; 46301da177e4SLinus Torvalds 46311da177e4SLinus Torvalds /* 46321da177e4SLinus Torvalds * Convert an NFS error code to a local one. 46331da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 46341da177e4SLinus Torvalds */ 46351da177e4SLinus Torvalds static int 46360a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 46371da177e4SLinus Torvalds { 46381da177e4SLinus Torvalds int i; 46391da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 46401da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 46411da177e4SLinus Torvalds return nfs_errtbl[i].errno; 46421da177e4SLinus Torvalds } 46431da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 46441da177e4SLinus Torvalds /* The server is looney tunes. */ 46451da177e4SLinus Torvalds return ESERVERFAULT; 46461da177e4SLinus Torvalds } 46471da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 46481da177e4SLinus Torvalds * handle it. 46491da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 46501da177e4SLinus Torvalds * not conflict with native Linux error codes. 46511da177e4SLinus Torvalds */ 46521da177e4SLinus Torvalds return stat; 46531da177e4SLinus Torvalds } 46541da177e4SLinus Torvalds 46551da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 46561da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 46571da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 46581da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 46591da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 46602bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 46612bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 4662cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 4663cc0175c1SChuck Lever .p_name = #proc, \ 46641da177e4SLinus Torvalds } 46651da177e4SLinus Torvalds 46661da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 46671da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 46681da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 46691da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 46701da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 46711da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 46721da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 46731da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 46741da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 46751da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 46761da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 46771da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 46781da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 46791da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 46801da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 46811da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 46821da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 46831da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 46841da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 46851da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 46861da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 46871da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 46881da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 46891da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 46901da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 46911da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 46921da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 46931da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 46941da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 46951da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 46961da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 46971da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4698029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 469923ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 4700683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 47011da177e4SLinus Torvalds }; 47021da177e4SLinus Torvalds 47031da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 47041da177e4SLinus Torvalds .number = 4, 4705e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 47061da177e4SLinus Torvalds .procs = nfs4_procedures 47071da177e4SLinus Torvalds }; 47081da177e4SLinus Torvalds 47091da177e4SLinus Torvalds /* 47101da177e4SLinus Torvalds * Local variables: 47111da177e4SLinus Torvalds * c-basic-offset: 8 47121da177e4SLinus Torvalds * End: 47131da177e4SLinus Torvalds */ 4714