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); 18594f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 18601da177e4SLinus Torvalds out: 18611da177e4SLinus Torvalds return status; 18621da177e4SLinus Torvalds } 18631da177e4SLinus Torvalds 18641da177e4SLinus Torvalds /* 18651da177e4SLinus Torvalds * Encode an SETATTR request 18661da177e4SLinus Torvalds */ 18678687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 18681da177e4SLinus Torvalds 18691da177e4SLinus Torvalds { 18701da177e4SLinus Torvalds struct xdr_stream xdr; 18711da177e4SLinus Torvalds struct compound_hdr hdr = { 18721da177e4SLinus Torvalds .nops = 3, 18731da177e4SLinus Torvalds }; 18741da177e4SLinus Torvalds int status; 18751da177e4SLinus Torvalds 18761da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18771da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18781da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18791da177e4SLinus Torvalds if(status) 18801da177e4SLinus Torvalds goto out; 18811da177e4SLinus Torvalds status = encode_setattr(&xdr, args, args->server); 18821da177e4SLinus Torvalds if(status) 18831da177e4SLinus Torvalds goto out; 18841da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 18851da177e4SLinus Torvalds out: 18861da177e4SLinus Torvalds return status; 18871da177e4SLinus Torvalds } 18881da177e4SLinus Torvalds 18891da177e4SLinus Torvalds /* 1890029d105eSJ. Bruce Fields * Encode a GETACL request 1891029d105eSJ. Bruce Fields */ 1892029d105eSJ. Bruce Fields static int 18938687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 1894029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 1895029d105eSJ. Bruce Fields { 1896029d105eSJ. Bruce Fields struct xdr_stream xdr; 18971be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1898029d105eSJ. Bruce Fields struct compound_hdr hdr = { 1899029d105eSJ. Bruce Fields .nops = 2, 1900029d105eSJ. Bruce Fields }; 1901029d105eSJ. Bruce Fields int replen, status; 1902029d105eSJ. Bruce Fields 1903029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1904029d105eSJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 1905029d105eSJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 1906029d105eSJ. Bruce Fields if (status) 1907029d105eSJ. Bruce Fields goto out; 1908029d105eSJ. Bruce Fields status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); 1909029d105eSJ. Bruce Fields /* set up reply buffer: */ 1910029d105eSJ. Bruce Fields replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; 1911029d105eSJ. Bruce Fields xdr_inline_pages(&req->rq_rcv_buf, replen, 1912029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 1913029d105eSJ. Bruce Fields out: 1914029d105eSJ. Bruce Fields return status; 1915029d105eSJ. Bruce Fields } 1916029d105eSJ. Bruce Fields 1917029d105eSJ. Bruce Fields /* 19181da177e4SLinus Torvalds * Encode a WRITE request 19191da177e4SLinus Torvalds */ 19208687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 19211da177e4SLinus Torvalds { 19221da177e4SLinus Torvalds struct xdr_stream xdr; 19231da177e4SLinus Torvalds struct compound_hdr hdr = { 19244f9838c7STrond Myklebust .nops = 3, 19251da177e4SLinus Torvalds }; 19261da177e4SLinus Torvalds int status; 19271da177e4SLinus Torvalds 19281da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19291da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19301da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19311da177e4SLinus Torvalds if (status) 19321da177e4SLinus Torvalds goto out; 19331da177e4SLinus Torvalds status = encode_write(&xdr, args); 19344f9838c7STrond Myklebust if (status) 19354f9838c7STrond Myklebust goto out; 19364f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 19374f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 19381da177e4SLinus Torvalds out: 19391da177e4SLinus Torvalds return status; 19401da177e4SLinus Torvalds } 19411da177e4SLinus Torvalds 19421da177e4SLinus Torvalds /* 19431da177e4SLinus Torvalds * a COMMIT request 19441da177e4SLinus Torvalds */ 19458687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 19461da177e4SLinus Torvalds { 19471da177e4SLinus Torvalds struct xdr_stream xdr; 19481da177e4SLinus Torvalds struct compound_hdr hdr = { 19494f9838c7STrond Myklebust .nops = 3, 19501da177e4SLinus Torvalds }; 19511da177e4SLinus Torvalds int status; 19521da177e4SLinus Torvalds 19531da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19541da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19551da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19561da177e4SLinus Torvalds if (status) 19571da177e4SLinus Torvalds goto out; 19581da177e4SLinus Torvalds status = encode_commit(&xdr, args); 19594f9838c7STrond Myklebust if (status) 19604f9838c7STrond Myklebust goto out; 19614f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 19621da177e4SLinus Torvalds out: 19631da177e4SLinus Torvalds return status; 19641da177e4SLinus Torvalds } 19651da177e4SLinus Torvalds 19661da177e4SLinus Torvalds /* 19671da177e4SLinus Torvalds * FSINFO request 19681da177e4SLinus Torvalds */ 19698687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 19701da177e4SLinus Torvalds { 19711da177e4SLinus Torvalds struct xdr_stream xdr; 19721da177e4SLinus Torvalds struct compound_hdr hdr = { 19731da177e4SLinus Torvalds .nops = 2, 19741da177e4SLinus Torvalds }; 19751da177e4SLinus Torvalds int status; 19761da177e4SLinus Torvalds 19771da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19781da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19791da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19801da177e4SLinus Torvalds if (!status) 19811da177e4SLinus Torvalds status = encode_fsinfo(&xdr, args->bitmask); 19821da177e4SLinus Torvalds return status; 19831da177e4SLinus Torvalds } 19841da177e4SLinus Torvalds 19851da177e4SLinus Torvalds /* 19861da177e4SLinus Torvalds * a PATHCONF request 19871da177e4SLinus Torvalds */ 19888687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 19891da177e4SLinus Torvalds { 19901da177e4SLinus Torvalds struct xdr_stream xdr; 19911da177e4SLinus Torvalds struct compound_hdr hdr = { 19921da177e4SLinus Torvalds .nops = 2, 19931da177e4SLinus Torvalds }; 19941da177e4SLinus Torvalds int status; 19951da177e4SLinus Torvalds 19961da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19971da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19981da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19991da177e4SLinus Torvalds if (!status) 20001da177e4SLinus Torvalds status = encode_getattr_one(&xdr, 20011da177e4SLinus Torvalds args->bitmask[0] & nfs4_pathconf_bitmap[0]); 20021da177e4SLinus Torvalds return status; 20031da177e4SLinus Torvalds } 20041da177e4SLinus Torvalds 20051da177e4SLinus Torvalds /* 20061da177e4SLinus Torvalds * a STATFS request 20071da177e4SLinus Torvalds */ 20088687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 20091da177e4SLinus Torvalds { 20101da177e4SLinus Torvalds struct xdr_stream xdr; 20111da177e4SLinus Torvalds struct compound_hdr hdr = { 20121da177e4SLinus Torvalds .nops = 2, 20131da177e4SLinus Torvalds }; 20141da177e4SLinus Torvalds int status; 20151da177e4SLinus Torvalds 20161da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20171da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20181da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 20191da177e4SLinus Torvalds if (status == 0) 20201da177e4SLinus Torvalds status = encode_getattr_two(&xdr, 20211da177e4SLinus Torvalds args->bitmask[0] & nfs4_statfs_bitmap[0], 20221da177e4SLinus Torvalds args->bitmask[1] & nfs4_statfs_bitmap[1]); 20231da177e4SLinus Torvalds return status; 20241da177e4SLinus Torvalds } 20251da177e4SLinus Torvalds 20261da177e4SLinus Torvalds /* 20271da177e4SLinus Torvalds * GETATTR_BITMAP request 20281da177e4SLinus Torvalds */ 20298687b63aSAl Viro static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) 20301da177e4SLinus Torvalds { 20311da177e4SLinus Torvalds struct xdr_stream xdr; 20321da177e4SLinus Torvalds struct compound_hdr hdr = { 20331da177e4SLinus Torvalds .nops = 2, 20341da177e4SLinus Torvalds }; 20351da177e4SLinus Torvalds int status; 20361da177e4SLinus Torvalds 20371da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20381da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20391da177e4SLinus Torvalds status = encode_putfh(&xdr, fhandle); 20401da177e4SLinus Torvalds if (status == 0) 20411da177e4SLinus Torvalds status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 20421da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 20431da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 20441da177e4SLinus Torvalds FATTR4_WORD0_ACLSUPPORT); 20451da177e4SLinus Torvalds return status; 20461da177e4SLinus Torvalds } 20471da177e4SLinus Torvalds 20481da177e4SLinus Torvalds /* 20491da177e4SLinus Torvalds * a RENEW request 20501da177e4SLinus Torvalds */ 20518687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 20521da177e4SLinus Torvalds { 20531da177e4SLinus Torvalds struct xdr_stream xdr; 20541da177e4SLinus Torvalds struct compound_hdr hdr = { 20551da177e4SLinus Torvalds .nops = 1, 20561da177e4SLinus Torvalds }; 20571da177e4SLinus Torvalds 20581da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20591da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20601da177e4SLinus Torvalds return encode_renew(&xdr, clp); 20611da177e4SLinus Torvalds } 20621da177e4SLinus Torvalds 20631da177e4SLinus Torvalds /* 20641da177e4SLinus Torvalds * a SETCLIENTID request 20651da177e4SLinus Torvalds */ 20668687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 20671da177e4SLinus Torvalds { 20681da177e4SLinus Torvalds struct xdr_stream xdr; 20691da177e4SLinus Torvalds struct compound_hdr hdr = { 20701da177e4SLinus Torvalds .nops = 1, 20711da177e4SLinus Torvalds }; 20721da177e4SLinus Torvalds 20731da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20741da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20751da177e4SLinus Torvalds return encode_setclientid(&xdr, sc); 20761da177e4SLinus Torvalds } 20771da177e4SLinus Torvalds 20781da177e4SLinus Torvalds /* 20791da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 20801da177e4SLinus Torvalds */ 20818687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 20821da177e4SLinus Torvalds { 20831da177e4SLinus Torvalds struct xdr_stream xdr; 20841da177e4SLinus Torvalds struct compound_hdr hdr = { 20851da177e4SLinus Torvalds .nops = 3, 20861da177e4SLinus Torvalds }; 20871da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 20881da177e4SLinus Torvalds int status; 20891da177e4SLinus Torvalds 20901da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20911da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20921da177e4SLinus Torvalds status = encode_setclientid_confirm(&xdr, clp); 20931da177e4SLinus Torvalds if (!status) 20941da177e4SLinus Torvalds status = encode_putrootfh(&xdr); 20951da177e4SLinus Torvalds if (!status) 20961da177e4SLinus Torvalds status = encode_fsinfo(&xdr, lease_bitmap); 20971da177e4SLinus Torvalds return status; 20981da177e4SLinus Torvalds } 20991da177e4SLinus Torvalds 21001da177e4SLinus Torvalds /* 21011da177e4SLinus Torvalds * DELEGRETURN request 21021da177e4SLinus Torvalds */ 21038687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 21041da177e4SLinus Torvalds { 21051da177e4SLinus Torvalds struct xdr_stream xdr; 21061da177e4SLinus Torvalds struct compound_hdr hdr = { 2107fa178f29STrond Myklebust .nops = 3, 21081da177e4SLinus Torvalds }; 21091da177e4SLinus Torvalds int status; 21101da177e4SLinus Torvalds 21111da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21121da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 2113fa178f29STrond Myklebust status = encode_putfh(&xdr, args->fhandle); 2114fa178f29STrond Myklebust if (status != 0) 2115fa178f29STrond Myklebust goto out; 21161da177e4SLinus Torvalds status = encode_delegreturn(&xdr, args->stateid); 2117fa178f29STrond Myklebust if (status != 0) 2118fa178f29STrond Myklebust goto out; 2119fa178f29STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 2120fa178f29STrond Myklebust out: 21211da177e4SLinus Torvalds return status; 21221da177e4SLinus Torvalds } 21231da177e4SLinus Torvalds 21241da177e4SLinus Torvalds /* 2125683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2126683b57b4STrond Myklebust */ 21278687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2128683b57b4STrond Myklebust { 2129683b57b4STrond Myklebust struct xdr_stream xdr; 2130683b57b4STrond Myklebust struct compound_hdr hdr = { 2131683b57b4STrond Myklebust .nops = 3, 2132683b57b4STrond Myklebust }; 21331be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 2134683b57b4STrond Myklebust int replen; 2135683b57b4STrond Myklebust int status; 2136683b57b4STrond Myklebust 2137683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2138683b57b4STrond Myklebust encode_compound_hdr(&xdr, &hdr); 2139683b57b4STrond Myklebust if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 2140683b57b4STrond Myklebust goto out; 2141683b57b4STrond Myklebust if ((status = encode_lookup(&xdr, args->name)) != 0) 2142683b57b4STrond Myklebust goto out; 2143830b8e33SManoj Naik if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0) 2144683b57b4STrond Myklebust goto out; 2145683b57b4STrond Myklebust /* set up reply 2146830b8e33SManoj Naik * toplevel_status + OP_PUTFH + status 2147683b57b4STrond Myklebust * + OP_LOOKUP + status + OP_GETATTR + status = 7 2148683b57b4STrond Myklebust */ 2149683b57b4STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; 2150683b57b4STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, 2151683b57b4STrond Myklebust 0, PAGE_SIZE); 2152683b57b4STrond Myklebust out: 2153683b57b4STrond Myklebust return status; 2154683b57b4STrond Myklebust } 2155683b57b4STrond Myklebust 2156683b57b4STrond Myklebust /* 21571da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 21581da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 21591da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 21601da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 21611da177e4SLinus Torvalds * 21621da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 21631da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 21641da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 21651da177e4SLinus Torvalds */ 21661da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 21671da177e4SLinus Torvalds #define READ64(x) do { \ 21681da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 21691da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 21701da177e4SLinus Torvalds } while (0) 21711da177e4SLinus Torvalds #define READTIME(x) do { \ 21721da177e4SLinus Torvalds p++; \ 21731da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 21741da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 21751da177e4SLinus Torvalds } while (0) 21761da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 21771da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 21781da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 21791da177e4SLinus Torvalds } while (0) 21801da177e4SLinus Torvalds 21811da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 21821da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2183e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2184fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 2185e4cc6ee2SChuck Lever " buffer\n", __FUNCTION__); \ 2186fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 2187e4cc6ee2SChuck Lever __FUNCTION__, xdr->p, nbytes, xdr->end); \ 21881da177e4SLinus Torvalds return -EIO; \ 21891da177e4SLinus Torvalds } \ 21901da177e4SLinus Torvalds } while (0) 21911da177e4SLinus Torvalds 2192683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 21931da177e4SLinus Torvalds { 21948687b63aSAl Viro __be32 *p; 21951da177e4SLinus Torvalds 21961da177e4SLinus Torvalds READ_BUF(4); 21971da177e4SLinus Torvalds READ32(*len); 21981da177e4SLinus Torvalds READ_BUF(*len); 21991da177e4SLinus Torvalds *string = (char *)p; 22001da177e4SLinus Torvalds return 0; 22011da177e4SLinus Torvalds } 22021da177e4SLinus Torvalds 22031da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 22041da177e4SLinus Torvalds { 22058687b63aSAl Viro __be32 *p; 22061da177e4SLinus Torvalds 22071da177e4SLinus Torvalds READ_BUF(8); 22081da177e4SLinus Torvalds READ32(hdr->status); 22091da177e4SLinus Torvalds READ32(hdr->taglen); 22101da177e4SLinus Torvalds 22111da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 22121da177e4SLinus Torvalds hdr->tag = (char *)p; 22131da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 22141da177e4SLinus Torvalds READ32(hdr->nops); 22151da177e4SLinus Torvalds return 0; 22161da177e4SLinus Torvalds } 22171da177e4SLinus Torvalds 22181da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 22191da177e4SLinus Torvalds { 22208687b63aSAl Viro __be32 *p; 22211da177e4SLinus Torvalds uint32_t opnum; 22221da177e4SLinus Torvalds int32_t nfserr; 22231da177e4SLinus Torvalds 22241da177e4SLinus Torvalds READ_BUF(8); 22251da177e4SLinus Torvalds READ32(opnum); 22261da177e4SLinus Torvalds if (opnum != expected) { 2227fe82a183SChuck Lever dprintk("nfs: Server returned operation" 22281da177e4SLinus Torvalds " %d but we issued a request for %d\n", 22291da177e4SLinus Torvalds opnum, expected); 22301da177e4SLinus Torvalds return -EIO; 22311da177e4SLinus Torvalds } 22321da177e4SLinus Torvalds READ32(nfserr); 22331da177e4SLinus Torvalds if (nfserr != NFS_OK) 22340a8ea437SDavid Howells return -nfs4_stat_to_errno(nfserr); 22351da177e4SLinus Torvalds return 0; 22361da177e4SLinus Torvalds } 22371da177e4SLinus Torvalds 22381da177e4SLinus Torvalds /* Dummy routine */ 2239adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 22401da177e4SLinus Torvalds { 22418687b63aSAl Viro __be32 *p; 2242683b57b4STrond Myklebust unsigned int strlen; 22431da177e4SLinus Torvalds char *str; 22441da177e4SLinus Torvalds 22451da177e4SLinus Torvalds READ_BUF(12); 22461da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 22471da177e4SLinus Torvalds } 22481da177e4SLinus Torvalds 22491da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 22501da177e4SLinus Torvalds { 22518687b63aSAl Viro uint32_t bmlen; 22528687b63aSAl Viro __be32 *p; 22531da177e4SLinus Torvalds 22541da177e4SLinus Torvalds READ_BUF(4); 22551da177e4SLinus Torvalds READ32(bmlen); 22561da177e4SLinus Torvalds 22571da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 22581da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 22591da177e4SLinus Torvalds if (bmlen > 0) { 22601da177e4SLinus Torvalds READ32(bitmap[0]); 22611da177e4SLinus Torvalds if (bmlen > 1) 22621da177e4SLinus Torvalds READ32(bitmap[1]); 22631da177e4SLinus Torvalds } 22641da177e4SLinus Torvalds return 0; 22651da177e4SLinus Torvalds } 22661da177e4SLinus Torvalds 22678687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 22681da177e4SLinus Torvalds { 22698687b63aSAl Viro __be32 *p; 22701da177e4SLinus Torvalds 22711da177e4SLinus Torvalds READ_BUF(4); 22721da177e4SLinus Torvalds READ32(*attrlen); 22731da177e4SLinus Torvalds *savep = xdr->p; 22741da177e4SLinus Torvalds return 0; 22751da177e4SLinus Torvalds } 22761da177e4SLinus Torvalds 22771da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 22781da177e4SLinus Torvalds { 22791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 22801da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 22811da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 22821da177e4SLinus Torvalds } else 22831da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 22841da177e4SLinus Torvalds dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); 22851da177e4SLinus Torvalds return 0; 22861da177e4SLinus Torvalds } 22871da177e4SLinus Torvalds 22881da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 22891da177e4SLinus Torvalds { 22908687b63aSAl Viro __be32 *p; 22911da177e4SLinus Torvalds 22921da177e4SLinus Torvalds *type = 0; 22931da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 22941da177e4SLinus Torvalds return -EIO; 22951da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 22961da177e4SLinus Torvalds READ_BUF(4); 22971da177e4SLinus Torvalds READ32(*type); 22981da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 22991da177e4SLinus Torvalds dprintk("%s: bad type %d\n", __FUNCTION__, *type); 23001da177e4SLinus Torvalds return -EIO; 23011da177e4SLinus Torvalds } 23021da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 23031da177e4SLinus Torvalds } 23041da177e4SLinus Torvalds dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); 23051da177e4SLinus Torvalds return 0; 23061da177e4SLinus Torvalds } 23071da177e4SLinus Torvalds 23081da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 23091da177e4SLinus Torvalds { 23108687b63aSAl Viro __be32 *p; 23111da177e4SLinus Torvalds 23121da177e4SLinus Torvalds *change = 0; 23131da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 23141da177e4SLinus Torvalds return -EIO; 23151da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 23161da177e4SLinus Torvalds READ_BUF(8); 23171da177e4SLinus Torvalds READ64(*change); 23181da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 23191da177e4SLinus Torvalds } 23201da177e4SLinus Torvalds dprintk("%s: change attribute=%Lu\n", __FUNCTION__, 23211da177e4SLinus Torvalds (unsigned long long)*change); 23221da177e4SLinus Torvalds return 0; 23231da177e4SLinus Torvalds } 23241da177e4SLinus Torvalds 23251da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 23261da177e4SLinus Torvalds { 23278687b63aSAl Viro __be32 *p; 23281da177e4SLinus Torvalds 23291da177e4SLinus Torvalds *size = 0; 23301da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 23311da177e4SLinus Torvalds return -EIO; 23321da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 23331da177e4SLinus Torvalds READ_BUF(8); 23341da177e4SLinus Torvalds READ64(*size); 23351da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 23361da177e4SLinus Torvalds } 23371da177e4SLinus Torvalds dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); 23381da177e4SLinus Torvalds return 0; 23391da177e4SLinus Torvalds } 23401da177e4SLinus Torvalds 23411da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23421da177e4SLinus Torvalds { 23438687b63aSAl Viro __be32 *p; 23441da177e4SLinus Torvalds 23451da177e4SLinus Torvalds *res = 0; 23461da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 23471da177e4SLinus Torvalds return -EIO; 23481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 23491da177e4SLinus Torvalds READ_BUF(4); 23501da177e4SLinus Torvalds READ32(*res); 23511da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 23521da177e4SLinus Torvalds } 23531da177e4SLinus Torvalds dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 23541da177e4SLinus Torvalds return 0; 23551da177e4SLinus Torvalds } 23561da177e4SLinus Torvalds 23571da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23581da177e4SLinus Torvalds { 23598687b63aSAl Viro __be32 *p; 23601da177e4SLinus Torvalds 23611da177e4SLinus Torvalds *res = 0; 23621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 23631da177e4SLinus Torvalds return -EIO; 23641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 23651da177e4SLinus Torvalds READ_BUF(4); 23661da177e4SLinus Torvalds READ32(*res); 23671da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 23681da177e4SLinus Torvalds } 23691da177e4SLinus Torvalds dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 23701da177e4SLinus Torvalds return 0; 23711da177e4SLinus Torvalds } 23721da177e4SLinus Torvalds 23738b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 23741da177e4SLinus Torvalds { 23758687b63aSAl Viro __be32 *p; 23761da177e4SLinus Torvalds 23771da177e4SLinus Torvalds fsid->major = 0; 23781da177e4SLinus Torvalds fsid->minor = 0; 23791da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 23801da177e4SLinus Torvalds return -EIO; 23811da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 23821da177e4SLinus Torvalds READ_BUF(16); 23831da177e4SLinus Torvalds READ64(fsid->major); 23841da177e4SLinus Torvalds READ64(fsid->minor); 23851da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 23861da177e4SLinus Torvalds } 23871da177e4SLinus Torvalds dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, 23881da177e4SLinus Torvalds (unsigned long long)fsid->major, 23891da177e4SLinus Torvalds (unsigned long long)fsid->minor); 23901da177e4SLinus Torvalds return 0; 23911da177e4SLinus Torvalds } 23921da177e4SLinus Torvalds 23931da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23941da177e4SLinus Torvalds { 23958687b63aSAl Viro __be32 *p; 23961da177e4SLinus Torvalds 23971da177e4SLinus Torvalds *res = 60; 23981da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 23991da177e4SLinus Torvalds return -EIO; 24001da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 24011da177e4SLinus Torvalds READ_BUF(4); 24021da177e4SLinus Torvalds READ32(*res); 24031da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 24041da177e4SLinus Torvalds } 24051da177e4SLinus Torvalds dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); 24061da177e4SLinus Torvalds return 0; 24071da177e4SLinus Torvalds } 24081da177e4SLinus Torvalds 24091da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 24101da177e4SLinus Torvalds { 24118687b63aSAl Viro __be32 *p; 24121da177e4SLinus Torvalds 24131da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 24141da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 24151da177e4SLinus Torvalds return -EIO; 24161da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 24171da177e4SLinus Torvalds READ_BUF(4); 24181da177e4SLinus Torvalds READ32(*res); 24191da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 24201da177e4SLinus Torvalds } 24211da177e4SLinus Torvalds dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); 24221da177e4SLinus Torvalds return 0; 24231da177e4SLinus Torvalds } 24241da177e4SLinus Torvalds 24251da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 24261da177e4SLinus Torvalds { 24278687b63aSAl Viro __be32 *p; 24281da177e4SLinus Torvalds 24291da177e4SLinus Torvalds *fileid = 0; 24301da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 24311da177e4SLinus Torvalds return -EIO; 24321da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 24331da177e4SLinus Torvalds READ_BUF(8); 24341da177e4SLinus Torvalds READ64(*fileid); 24351da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 24361da177e4SLinus Torvalds } 24371da177e4SLinus Torvalds dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 24381da177e4SLinus Torvalds return 0; 24391da177e4SLinus Torvalds } 24401da177e4SLinus Torvalds 244199baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 244299baf625SManoj Naik { 24438687b63aSAl Viro __be32 *p; 244499baf625SManoj Naik 244599baf625SManoj Naik *fileid = 0; 244699baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 244799baf625SManoj Naik return -EIO; 244899baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 244999baf625SManoj Naik READ_BUF(8); 245099baf625SManoj Naik READ64(*fileid); 245199baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 245299baf625SManoj Naik } 245399baf625SManoj Naik dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 245499baf625SManoj Naik return 0; 245599baf625SManoj Naik } 245699baf625SManoj Naik 24571da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24581da177e4SLinus Torvalds { 24598687b63aSAl Viro __be32 *p; 24601da177e4SLinus Torvalds int status = 0; 24611da177e4SLinus Torvalds 24621da177e4SLinus Torvalds *res = 0; 24631da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 24641da177e4SLinus Torvalds return -EIO; 24651da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 24661da177e4SLinus Torvalds READ_BUF(8); 24671da177e4SLinus Torvalds READ64(*res); 24681da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 24691da177e4SLinus Torvalds } 24701da177e4SLinus Torvalds dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24711da177e4SLinus Torvalds return status; 24721da177e4SLinus Torvalds } 24731da177e4SLinus Torvalds 24741da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24751da177e4SLinus Torvalds { 24768687b63aSAl Viro __be32 *p; 24771da177e4SLinus Torvalds int status = 0; 24781da177e4SLinus Torvalds 24791da177e4SLinus Torvalds *res = 0; 24801da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 24811da177e4SLinus Torvalds return -EIO; 24821da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 24831da177e4SLinus Torvalds READ_BUF(8); 24841da177e4SLinus Torvalds READ64(*res); 24851da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 24861da177e4SLinus Torvalds } 24871da177e4SLinus Torvalds dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24881da177e4SLinus Torvalds return status; 24891da177e4SLinus Torvalds } 24901da177e4SLinus Torvalds 24911da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24921da177e4SLinus Torvalds { 24938687b63aSAl Viro __be32 *p; 24941da177e4SLinus Torvalds int status = 0; 24951da177e4SLinus Torvalds 24961da177e4SLinus Torvalds *res = 0; 24971da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 24981da177e4SLinus Torvalds return -EIO; 24991da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 25001da177e4SLinus Torvalds READ_BUF(8); 25011da177e4SLinus Torvalds READ64(*res); 25021da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 25031da177e4SLinus Torvalds } 25041da177e4SLinus Torvalds dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 25051da177e4SLinus Torvalds return status; 25061da177e4SLinus Torvalds } 25071da177e4SLinus Torvalds 25087aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 25097aaa0b3bSManoj Naik { 25107aaa0b3bSManoj Naik int n; 25118687b63aSAl Viro __be32 *p; 25127aaa0b3bSManoj Naik int status = 0; 25137aaa0b3bSManoj Naik 25147aaa0b3bSManoj Naik READ_BUF(4); 25157aaa0b3bSManoj Naik READ32(n); 251633a43f28SAndy Adamson if (n < 0) 25177aaa0b3bSManoj Naik goto out_eio; 251833a43f28SAndy Adamson if (n == 0) 251933a43f28SAndy Adamson goto root_path; 25207aaa0b3bSManoj Naik dprintk("path "); 25217aaa0b3bSManoj Naik path->ncomponents = 0; 25227aaa0b3bSManoj Naik while (path->ncomponents < n) { 25237aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 25247aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 25257aaa0b3bSManoj Naik if (unlikely(status != 0)) 25267aaa0b3bSManoj Naik goto out_eio; 25277aaa0b3bSManoj Naik if (path->ncomponents != n) 25287aaa0b3bSManoj Naik dprintk("/"); 25297aaa0b3bSManoj Naik dprintk("%s", component->data); 25307aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 25317aaa0b3bSManoj Naik path->ncomponents++; 25327aaa0b3bSManoj Naik else { 25337aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 25347aaa0b3bSManoj Naik goto out_eio; 25357aaa0b3bSManoj Naik } 25367aaa0b3bSManoj Naik } 25377aaa0b3bSManoj Naik out: 25387aaa0b3bSManoj Naik dprintk("\n"); 25397aaa0b3bSManoj Naik return status; 254033a43f28SAndy Adamson root_path: 254133a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 254233a43f28SAndy Adamson path->ncomponents = 1; 254333a43f28SAndy Adamson path->components[0].len=0; 254433a43f28SAndy Adamson path->components[0].data=NULL; 254533a43f28SAndy Adamson dprintk("path /\n"); 254633a43f28SAndy Adamson goto out; 25477aaa0b3bSManoj Naik out_eio: 25487aaa0b3bSManoj Naik dprintk(" status %d", status); 25497aaa0b3bSManoj Naik status = -EIO; 25507aaa0b3bSManoj Naik goto out; 25517aaa0b3bSManoj Naik } 25527aaa0b3bSManoj Naik 25537aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2554683b57b4STrond Myklebust { 2555683b57b4STrond Myklebust int n; 25568687b63aSAl Viro __be32 *p; 2557683b57b4STrond Myklebust int status = -EIO; 2558683b57b4STrond Myklebust 2559683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2560683b57b4STrond Myklebust goto out; 2561683b57b4STrond Myklebust status = 0; 2562683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2563683b57b4STrond Myklebust goto out; 25647aaa0b3bSManoj Naik dprintk("%s: fsroot ", __FUNCTION__); 25657aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2566683b57b4STrond Myklebust if (unlikely(status != 0)) 2567683b57b4STrond Myklebust goto out; 2568683b57b4STrond Myklebust READ_BUF(4); 2569683b57b4STrond Myklebust READ32(n); 2570683b57b4STrond Myklebust if (n <= 0) 2571683b57b4STrond Myklebust goto out_eio; 2572683b57b4STrond Myklebust res->nlocations = 0; 2573683b57b4STrond Myklebust while (res->nlocations < n) { 25747aaa0b3bSManoj Naik int m; 25757aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2576683b57b4STrond Myklebust 25777aaa0b3bSManoj Naik READ_BUF(4); 25787aaa0b3bSManoj Naik READ32(m); 25797aaa0b3bSManoj Naik if (m <= 0) 25807aaa0b3bSManoj Naik goto out_eio; 25817aaa0b3bSManoj Naik 25827aaa0b3bSManoj Naik loc->nservers = 0; 25837aaa0b3bSManoj Naik dprintk("%s: servers ", __FUNCTION__); 25847aaa0b3bSManoj Naik while (loc->nservers < m) { 25857aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 25867aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2587683b57b4STrond Myklebust if (unlikely(status != 0)) 2588683b57b4STrond Myklebust goto out_eio; 25897aaa0b3bSManoj Naik dprintk("%s ", server->data); 25907aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 25917aaa0b3bSManoj Naik loc->nservers++; 25927aaa0b3bSManoj Naik else { 25937aaa0b3bSManoj Naik int i; 25947aaa0b3bSManoj Naik dprintk("%s: using first %d of %d servers returned for location %d\n", __FUNCTION__, NFS4_FS_LOCATION_MAXSERVERS, m, res->nlocations); 25957aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 25962e42c3e2STrond Myklebust unsigned int len; 25977aaa0b3bSManoj Naik char *data; 25987aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2599683b57b4STrond Myklebust if (unlikely(status != 0)) 2600683b57b4STrond Myklebust goto out_eio; 26017aaa0b3bSManoj Naik } 26027aaa0b3bSManoj Naik } 26037aaa0b3bSManoj Naik } 26047aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 26057aaa0b3bSManoj Naik if (unlikely(status != 0)) 26067aaa0b3bSManoj Naik goto out_eio; 26077aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2608683b57b4STrond Myklebust res->nlocations++; 2609683b57b4STrond Myklebust } 2610683b57b4STrond Myklebust out: 2611683b57b4STrond Myklebust dprintk("%s: fs_locations done, error = %d\n", __FUNCTION__, status); 2612683b57b4STrond Myklebust return status; 2613683b57b4STrond Myklebust out_eio: 2614683b57b4STrond Myklebust status = -EIO; 2615683b57b4STrond Myklebust goto out; 2616683b57b4STrond Myklebust } 2617683b57b4STrond Myklebust 26181da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 26191da177e4SLinus Torvalds { 26208687b63aSAl Viro __be32 *p; 26211da177e4SLinus Torvalds int status = 0; 26221da177e4SLinus Torvalds 26231da177e4SLinus Torvalds *res = 0; 26241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 26251da177e4SLinus Torvalds return -EIO; 26261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 26271da177e4SLinus Torvalds READ_BUF(8); 26281da177e4SLinus Torvalds READ64(*res); 26291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 26301da177e4SLinus Torvalds } 26311da177e4SLinus Torvalds dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); 26321da177e4SLinus Torvalds return status; 26331da177e4SLinus Torvalds } 26341da177e4SLinus Torvalds 26351da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 26361da177e4SLinus Torvalds { 26378687b63aSAl Viro __be32 *p; 26381da177e4SLinus Torvalds int status = 0; 26391da177e4SLinus Torvalds 26401da177e4SLinus Torvalds *maxlink = 1; 26411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 26421da177e4SLinus Torvalds return -EIO; 26431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 26441da177e4SLinus Torvalds READ_BUF(4); 26451da177e4SLinus Torvalds READ32(*maxlink); 26461da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 26471da177e4SLinus Torvalds } 26481da177e4SLinus Torvalds dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); 26491da177e4SLinus Torvalds return status; 26501da177e4SLinus Torvalds } 26511da177e4SLinus Torvalds 26521da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 26531da177e4SLinus Torvalds { 26548687b63aSAl Viro __be32 *p; 26551da177e4SLinus Torvalds int status = 0; 26561da177e4SLinus Torvalds 26571da177e4SLinus Torvalds *maxname = 1024; 26581da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 26591da177e4SLinus Torvalds return -EIO; 26601da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 26611da177e4SLinus Torvalds READ_BUF(4); 26621da177e4SLinus Torvalds READ32(*maxname); 26631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 26641da177e4SLinus Torvalds } 26651da177e4SLinus Torvalds dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); 26661da177e4SLinus Torvalds return status; 26671da177e4SLinus Torvalds } 26681da177e4SLinus Torvalds 26691da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26701da177e4SLinus Torvalds { 26718687b63aSAl Viro __be32 *p; 26721da177e4SLinus Torvalds int status = 0; 26731da177e4SLinus Torvalds 26741da177e4SLinus Torvalds *res = 1024; 26751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 26761da177e4SLinus Torvalds return -EIO; 26771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 26781da177e4SLinus Torvalds uint64_t maxread; 26791da177e4SLinus Torvalds READ_BUF(8); 26801da177e4SLinus Torvalds READ64(maxread); 26811da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 26821da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 26831da177e4SLinus Torvalds *res = (uint32_t)maxread; 26841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 26851da177e4SLinus Torvalds } 26861da177e4SLinus Torvalds dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); 26871da177e4SLinus Torvalds return status; 26881da177e4SLinus Torvalds } 26891da177e4SLinus Torvalds 26901da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26911da177e4SLinus Torvalds { 26928687b63aSAl Viro __be32 *p; 26931da177e4SLinus Torvalds int status = 0; 26941da177e4SLinus Torvalds 26951da177e4SLinus Torvalds *res = 1024; 26961da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 26971da177e4SLinus Torvalds return -EIO; 26981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 26991da177e4SLinus Torvalds uint64_t maxwrite; 27001da177e4SLinus Torvalds READ_BUF(8); 27011da177e4SLinus Torvalds READ64(maxwrite); 27021da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 27031da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 27041da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 27051da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 27061da177e4SLinus Torvalds } 27071da177e4SLinus Torvalds dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); 27081da177e4SLinus Torvalds return status; 27091da177e4SLinus Torvalds } 27101da177e4SLinus Torvalds 27111da177e4SLinus Torvalds static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) 27121da177e4SLinus Torvalds { 27138687b63aSAl Viro __be32 *p; 27141da177e4SLinus Torvalds 27151da177e4SLinus Torvalds *mode = 0; 27161da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 27171da177e4SLinus Torvalds return -EIO; 27181da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 27191da177e4SLinus Torvalds READ_BUF(4); 27201da177e4SLinus Torvalds READ32(*mode); 27211da177e4SLinus Torvalds *mode &= ~S_IFMT; 27221da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 27231da177e4SLinus Torvalds } 27241da177e4SLinus Torvalds dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); 27251da177e4SLinus Torvalds return 0; 27261da177e4SLinus Torvalds } 27271da177e4SLinus Torvalds 27281da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 27291da177e4SLinus Torvalds { 27308687b63aSAl Viro __be32 *p; 27311da177e4SLinus Torvalds 27321da177e4SLinus Torvalds *nlink = 1; 27331da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 27341da177e4SLinus Torvalds return -EIO; 27351da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 27361da177e4SLinus Torvalds READ_BUF(4); 27371da177e4SLinus Torvalds READ32(*nlink); 27381da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 27391da177e4SLinus Torvalds } 27401da177e4SLinus Torvalds dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); 27411da177e4SLinus Torvalds return 0; 27421da177e4SLinus Torvalds } 27431da177e4SLinus Torvalds 27442e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 27451da177e4SLinus Torvalds { 27468687b63aSAl Viro uint32_t len; 27478687b63aSAl Viro __be32 *p; 27481da177e4SLinus Torvalds 27491da177e4SLinus Torvalds *uid = -2; 27501da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 27511da177e4SLinus Torvalds return -EIO; 27521da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 27531da177e4SLinus Torvalds READ_BUF(4); 27541da177e4SLinus Torvalds READ32(len); 27551da177e4SLinus Torvalds READ_BUF(len); 27561da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 27571da177e4SLinus Torvalds if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) 27581da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 27591da177e4SLinus Torvalds __FUNCTION__); 27601da177e4SLinus Torvalds } else 2761fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 27621da177e4SLinus Torvalds __FUNCTION__, len); 27631da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 27641da177e4SLinus Torvalds } 27651da177e4SLinus Torvalds dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); 27661da177e4SLinus Torvalds return 0; 27671da177e4SLinus Torvalds } 27681da177e4SLinus Torvalds 27692e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 27701da177e4SLinus Torvalds { 27718687b63aSAl Viro uint32_t len; 27728687b63aSAl Viro __be32 *p; 27731da177e4SLinus Torvalds 27741da177e4SLinus Torvalds *gid = -2; 27751da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 27761da177e4SLinus Torvalds return -EIO; 27771da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 27781da177e4SLinus Torvalds READ_BUF(4); 27791da177e4SLinus Torvalds READ32(len); 27801da177e4SLinus Torvalds READ_BUF(len); 27811da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 27821da177e4SLinus Torvalds if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) 27831da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 27841da177e4SLinus Torvalds __FUNCTION__); 27851da177e4SLinus Torvalds } else 2786fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 27871da177e4SLinus Torvalds __FUNCTION__, len); 27881da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 27891da177e4SLinus Torvalds } 27901da177e4SLinus Torvalds dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); 27911da177e4SLinus Torvalds return 0; 27921da177e4SLinus Torvalds } 27931da177e4SLinus Torvalds 27941da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 27951da177e4SLinus Torvalds { 27968687b63aSAl Viro uint32_t major = 0, minor = 0; 27978687b63aSAl Viro __be32 *p; 27981da177e4SLinus Torvalds 27991da177e4SLinus Torvalds *rdev = MKDEV(0,0); 28001da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 28011da177e4SLinus Torvalds return -EIO; 28021da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 28031da177e4SLinus Torvalds dev_t tmp; 28041da177e4SLinus Torvalds 28051da177e4SLinus Torvalds READ_BUF(8); 28061da177e4SLinus Torvalds READ32(major); 28071da177e4SLinus Torvalds READ32(minor); 28081da177e4SLinus Torvalds tmp = MKDEV(major, minor); 28091da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 28101da177e4SLinus Torvalds *rdev = tmp; 28111da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 28121da177e4SLinus Torvalds } 28131da177e4SLinus Torvalds dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); 28141da177e4SLinus Torvalds return 0; 28151da177e4SLinus Torvalds } 28161da177e4SLinus Torvalds 28171da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28181da177e4SLinus Torvalds { 28198687b63aSAl Viro __be32 *p; 28201da177e4SLinus Torvalds int status = 0; 28211da177e4SLinus Torvalds 28221da177e4SLinus Torvalds *res = 0; 28231da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 28241da177e4SLinus Torvalds return -EIO; 28251da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 28261da177e4SLinus Torvalds READ_BUF(8); 28271da177e4SLinus Torvalds READ64(*res); 28281da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 28291da177e4SLinus Torvalds } 28301da177e4SLinus Torvalds dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 28311da177e4SLinus Torvalds return status; 28321da177e4SLinus Torvalds } 28331da177e4SLinus Torvalds 28341da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28351da177e4SLinus Torvalds { 28368687b63aSAl Viro __be32 *p; 28371da177e4SLinus Torvalds int status = 0; 28381da177e4SLinus Torvalds 28391da177e4SLinus Torvalds *res = 0; 28401da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 28411da177e4SLinus Torvalds return -EIO; 28421da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 28431da177e4SLinus Torvalds READ_BUF(8); 28441da177e4SLinus Torvalds READ64(*res); 28451da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 28461da177e4SLinus Torvalds } 28471da177e4SLinus Torvalds dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 28481da177e4SLinus Torvalds return status; 28491da177e4SLinus Torvalds } 28501da177e4SLinus Torvalds 28511da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28521da177e4SLinus Torvalds { 28538687b63aSAl Viro __be32 *p; 28541da177e4SLinus Torvalds int status = 0; 28551da177e4SLinus Torvalds 28561da177e4SLinus Torvalds *res = 0; 28571da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 28581da177e4SLinus Torvalds return -EIO; 28591da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 28601da177e4SLinus Torvalds READ_BUF(8); 28611da177e4SLinus Torvalds READ64(*res); 28621da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 28631da177e4SLinus Torvalds } 28641da177e4SLinus Torvalds dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 28651da177e4SLinus Torvalds return status; 28661da177e4SLinus Torvalds } 28671da177e4SLinus Torvalds 28681da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 28691da177e4SLinus Torvalds { 28708687b63aSAl Viro __be32 *p; 28711da177e4SLinus Torvalds 28721da177e4SLinus Torvalds *used = 0; 28731da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 28741da177e4SLinus Torvalds return -EIO; 28751da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 28761da177e4SLinus Torvalds READ_BUF(8); 28771da177e4SLinus Torvalds READ64(*used); 28781da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 28791da177e4SLinus Torvalds } 28801da177e4SLinus Torvalds dprintk("%s: space used=%Lu\n", __FUNCTION__, 28811da177e4SLinus Torvalds (unsigned long long)*used); 28821da177e4SLinus Torvalds return 0; 28831da177e4SLinus Torvalds } 28841da177e4SLinus Torvalds 28851da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 28861da177e4SLinus Torvalds { 28878687b63aSAl Viro __be32 *p; 28881da177e4SLinus Torvalds uint64_t sec; 28891da177e4SLinus Torvalds uint32_t nsec; 28901da177e4SLinus Torvalds 28911da177e4SLinus Torvalds READ_BUF(12); 28921da177e4SLinus Torvalds READ64(sec); 28931da177e4SLinus Torvalds READ32(nsec); 28941da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 28951da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 28961da177e4SLinus Torvalds return 0; 28971da177e4SLinus Torvalds } 28981da177e4SLinus Torvalds 28991da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 29001da177e4SLinus Torvalds { 29011da177e4SLinus Torvalds int status = 0; 29021da177e4SLinus Torvalds 29031da177e4SLinus Torvalds time->tv_sec = 0; 29041da177e4SLinus Torvalds time->tv_nsec = 0; 29051da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 29061da177e4SLinus Torvalds return -EIO; 29071da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 29081da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 29091da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 29101da177e4SLinus Torvalds } 29111da177e4SLinus Torvalds dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); 29121da177e4SLinus Torvalds return status; 29131da177e4SLinus Torvalds } 29141da177e4SLinus Torvalds 29151da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 29161da177e4SLinus Torvalds { 29171da177e4SLinus Torvalds int status = 0; 29181da177e4SLinus Torvalds 29191da177e4SLinus Torvalds time->tv_sec = 0; 29201da177e4SLinus Torvalds time->tv_nsec = 0; 29211da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 29221da177e4SLinus Torvalds return -EIO; 29231da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 29241da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 29251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 29261da177e4SLinus Torvalds } 29271da177e4SLinus Torvalds dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); 29281da177e4SLinus Torvalds return status; 29291da177e4SLinus Torvalds } 29301da177e4SLinus Torvalds 29311da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 29321da177e4SLinus Torvalds { 29331da177e4SLinus Torvalds int status = 0; 29341da177e4SLinus Torvalds 29351da177e4SLinus Torvalds time->tv_sec = 0; 29361da177e4SLinus Torvalds time->tv_nsec = 0; 29371da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 29381da177e4SLinus Torvalds return -EIO; 29391da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 29401da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 29411da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 29421da177e4SLinus Torvalds } 29431da177e4SLinus Torvalds dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); 29441da177e4SLinus Torvalds return status; 29451da177e4SLinus Torvalds } 29461da177e4SLinus Torvalds 29478687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 29481da177e4SLinus Torvalds { 29491da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 29501da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 29511da177e4SLinus Torvalds 29521da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 2953fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 2954fe82a183SChuck Lever "%u %c %u\n", 29551da177e4SLinus Torvalds __FUNCTION__, 29561da177e4SLinus Torvalds attrwords << 2, 29571da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 29581da177e4SLinus Torvalds nwords << 2); 29591da177e4SLinus Torvalds return -EIO; 29601da177e4SLinus Torvalds } 29611da177e4SLinus Torvalds return 0; 29621da177e4SLinus Torvalds } 29631da177e4SLinus Torvalds 29641da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 29651da177e4SLinus Torvalds { 29668687b63aSAl Viro __be32 *p; 29671da177e4SLinus Torvalds 29681da177e4SLinus Torvalds READ_BUF(20); 29691da177e4SLinus Torvalds READ32(cinfo->atomic); 29701da177e4SLinus Torvalds READ64(cinfo->before); 29711da177e4SLinus Torvalds READ64(cinfo->after); 29721da177e4SLinus Torvalds return 0; 29731da177e4SLinus Torvalds } 29741da177e4SLinus Torvalds 29751da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 29761da177e4SLinus Torvalds { 29778687b63aSAl Viro __be32 *p; 29781da177e4SLinus Torvalds uint32_t supp, acc; 29791da177e4SLinus Torvalds int status; 29801da177e4SLinus Torvalds 29811da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 29821da177e4SLinus Torvalds if (status) 29831da177e4SLinus Torvalds return status; 29841da177e4SLinus Torvalds READ_BUF(8); 29851da177e4SLinus Torvalds READ32(supp); 29861da177e4SLinus Torvalds READ32(acc); 29871da177e4SLinus Torvalds access->supported = supp; 29881da177e4SLinus Torvalds access->access = acc; 29891da177e4SLinus Torvalds return 0; 29901da177e4SLinus Torvalds } 29911da177e4SLinus Torvalds 29921da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 29931da177e4SLinus Torvalds { 29948687b63aSAl Viro __be32 *p; 29951da177e4SLinus Torvalds int status; 29961da177e4SLinus Torvalds 29971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 29981da177e4SLinus Torvalds if (status) 29991da177e4SLinus Torvalds return status; 30008ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 30018ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 30021da177e4SLinus Torvalds return 0; 30031da177e4SLinus Torvalds } 30041da177e4SLinus Torvalds 30051da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 30061da177e4SLinus Torvalds { 30078687b63aSAl Viro __be32 *p; 30081da177e4SLinus Torvalds int status; 30091da177e4SLinus Torvalds 30101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 30111da177e4SLinus Torvalds if (status) 30121da177e4SLinus Torvalds return status; 30131da177e4SLinus Torvalds READ_BUF(8); 30141da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 30151da177e4SLinus Torvalds return 0; 30161da177e4SLinus Torvalds } 30171da177e4SLinus Torvalds 30181da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 30191da177e4SLinus Torvalds { 30208687b63aSAl Viro __be32 *p; 30211da177e4SLinus Torvalds uint32_t bmlen; 30221da177e4SLinus Torvalds int status; 30231da177e4SLinus Torvalds 30241da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 30251da177e4SLinus Torvalds if (status) 30261da177e4SLinus Torvalds return status; 30271da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 30281da177e4SLinus Torvalds return status; 30291da177e4SLinus Torvalds READ_BUF(4); 30301da177e4SLinus Torvalds READ32(bmlen); 30311da177e4SLinus Torvalds READ_BUF(bmlen << 2); 30321da177e4SLinus Torvalds return 0; 30331da177e4SLinus Torvalds } 30341da177e4SLinus Torvalds 30351da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 30361da177e4SLinus Torvalds { 30378687b63aSAl Viro __be32 *savep; 30381da177e4SLinus Torvalds uint32_t attrlen, 30391da177e4SLinus Torvalds bitmap[2] = {0}; 30401da177e4SLinus Torvalds int status; 30411da177e4SLinus Torvalds 30421da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30431da177e4SLinus Torvalds goto xdr_error; 30441da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30451da177e4SLinus Torvalds goto xdr_error; 30461da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30471da177e4SLinus Torvalds goto xdr_error; 30481da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 30491da177e4SLinus Torvalds goto xdr_error; 30501da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 30511da177e4SLinus Torvalds goto xdr_error; 30521da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 30531da177e4SLinus Torvalds goto xdr_error; 30541da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 30551da177e4SLinus Torvalds goto xdr_error; 30561da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30571da177e4SLinus Torvalds xdr_error: 305816c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 30591da177e4SLinus Torvalds return status; 30601da177e4SLinus Torvalds } 30611da177e4SLinus Torvalds 30621da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 30631da177e4SLinus Torvalds { 30648687b63aSAl Viro __be32 *savep; 30651da177e4SLinus Torvalds uint32_t attrlen, 30661da177e4SLinus Torvalds bitmap[2] = {0}; 30671da177e4SLinus Torvalds int status; 30681da177e4SLinus Torvalds 30691da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30701da177e4SLinus Torvalds goto xdr_error; 30711da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30721da177e4SLinus Torvalds goto xdr_error; 30731da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30741da177e4SLinus Torvalds goto xdr_error; 30751da177e4SLinus Torvalds 30761da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 30771da177e4SLinus Torvalds goto xdr_error; 30781da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 30791da177e4SLinus Torvalds goto xdr_error; 30801da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 30811da177e4SLinus Torvalds goto xdr_error; 30821da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 30831da177e4SLinus Torvalds goto xdr_error; 30841da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 30851da177e4SLinus Torvalds goto xdr_error; 30861da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 30871da177e4SLinus Torvalds goto xdr_error; 30881da177e4SLinus Torvalds 30891da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30901da177e4SLinus Torvalds xdr_error: 309116c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 30921da177e4SLinus Torvalds return status; 30931da177e4SLinus Torvalds } 30941da177e4SLinus Torvalds 30951da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 30961da177e4SLinus Torvalds { 30978687b63aSAl Viro __be32 *savep; 30981da177e4SLinus Torvalds uint32_t attrlen, 30991da177e4SLinus Torvalds bitmap[2] = {0}; 31001da177e4SLinus Torvalds int status; 31011da177e4SLinus Torvalds 31021da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31031da177e4SLinus Torvalds goto xdr_error; 31041da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31051da177e4SLinus Torvalds goto xdr_error; 31061da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 31071da177e4SLinus Torvalds goto xdr_error; 31081da177e4SLinus Torvalds 31091da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 31101da177e4SLinus Torvalds goto xdr_error; 31111da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 31121da177e4SLinus Torvalds goto xdr_error; 31131da177e4SLinus Torvalds 31141da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 31151da177e4SLinus Torvalds xdr_error: 311616c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 31171da177e4SLinus Torvalds return status; 31181da177e4SLinus Torvalds } 31191da177e4SLinus Torvalds 31201da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 31211da177e4SLinus Torvalds { 31228687b63aSAl Viro __be32 *savep; 31231da177e4SLinus Torvalds uint32_t attrlen, 31241da177e4SLinus Torvalds bitmap[2] = {0}, 31251da177e4SLinus Torvalds type; 31261da177e4SLinus Torvalds int status, fmode = 0; 312799baf625SManoj Naik uint64_t fileid; 31281da177e4SLinus Torvalds 31291da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31301da177e4SLinus Torvalds goto xdr_error; 31311da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31321da177e4SLinus Torvalds goto xdr_error; 31331da177e4SLinus Torvalds 31341da177e4SLinus Torvalds fattr->bitmap[0] = bitmap[0]; 31351da177e4SLinus Torvalds fattr->bitmap[1] = bitmap[1]; 31361da177e4SLinus Torvalds 31371da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 31381da177e4SLinus Torvalds goto xdr_error; 31391da177e4SLinus Torvalds 31401da177e4SLinus Torvalds 31411da177e4SLinus Torvalds if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) 31421da177e4SLinus Torvalds goto xdr_error; 31431da177e4SLinus Torvalds fattr->type = nfs_type2fmt[type].nfs2type; 31441da177e4SLinus Torvalds fmode = nfs_type2fmt[type].mode; 31451da177e4SLinus Torvalds 31461da177e4SLinus Torvalds if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) 31471da177e4SLinus Torvalds goto xdr_error; 31481da177e4SLinus Torvalds if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) 31491da177e4SLinus Torvalds goto xdr_error; 31508b4bdcf8STrond Myklebust if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) 31511da177e4SLinus Torvalds goto xdr_error; 31521da177e4SLinus Torvalds if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) 31531da177e4SLinus Torvalds goto xdr_error; 3154683b57b4STrond Myklebust if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 31557aaa0b3bSManoj Naik struct nfs4_fs_locations, 3156683b57b4STrond Myklebust fattr))) != 0) 3157683b57b4STrond Myklebust goto xdr_error; 31581da177e4SLinus Torvalds if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) 31591da177e4SLinus Torvalds goto xdr_error; 31601da177e4SLinus Torvalds fattr->mode |= fmode; 31611da177e4SLinus Torvalds if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) 31621da177e4SLinus Torvalds goto xdr_error; 31637539bbabSDavid Howells if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) 31641da177e4SLinus Torvalds goto xdr_error; 31657539bbabSDavid Howells if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) 31661da177e4SLinus Torvalds goto xdr_error; 31671da177e4SLinus Torvalds if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) 31681da177e4SLinus Torvalds goto xdr_error; 31691da177e4SLinus Torvalds if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) 31701da177e4SLinus Torvalds goto xdr_error; 31711da177e4SLinus Torvalds if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) 31721da177e4SLinus Torvalds goto xdr_error; 31731da177e4SLinus Torvalds if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) 31741da177e4SLinus Torvalds goto xdr_error; 31751da177e4SLinus Torvalds if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) 31761da177e4SLinus Torvalds goto xdr_error; 317799baf625SManoj Naik if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) 317899baf625SManoj Naik goto xdr_error; 317999baf625SManoj Naik if (fattr->fileid == 0 && fileid != 0) 318099baf625SManoj Naik fattr->fileid = fileid; 318133801147STrond Myklebust if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) 31821da177e4SLinus Torvalds fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; 31831da177e4SLinus Torvalds xdr_error: 318416c32b71STrond Myklebust dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); 31851da177e4SLinus Torvalds return status; 31861da177e4SLinus Torvalds } 31871da177e4SLinus Torvalds 31881da177e4SLinus Torvalds 31891da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 31901da177e4SLinus Torvalds { 31918687b63aSAl Viro __be32 *savep; 31921da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 31931da177e4SLinus Torvalds int status; 31941da177e4SLinus Torvalds 31951da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31961da177e4SLinus Torvalds goto xdr_error; 31971da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31981da177e4SLinus Torvalds goto xdr_error; 31991da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 32001da177e4SLinus Torvalds goto xdr_error; 32011da177e4SLinus Torvalds 32021da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 32031da177e4SLinus Torvalds 32041da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 32051da177e4SLinus Torvalds goto xdr_error; 32061da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 32071da177e4SLinus Torvalds goto xdr_error; 32081da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 32091da177e4SLinus Torvalds goto xdr_error; 32101da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 32111da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 32121da177e4SLinus Torvalds goto xdr_error; 32131da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 32141da177e4SLinus Torvalds 32151da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 32161da177e4SLinus Torvalds xdr_error: 321716c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 32181da177e4SLinus Torvalds return status; 32191da177e4SLinus Torvalds } 32201da177e4SLinus Torvalds 32211da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 32221da177e4SLinus Torvalds { 32238687b63aSAl Viro __be32 *p; 32241da177e4SLinus Torvalds uint32_t len; 32251da177e4SLinus Torvalds int status; 32261da177e4SLinus Torvalds 32279936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 32289936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 32299936781dSTrond Myklebust 32301da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 32311da177e4SLinus Torvalds if (status) 32321da177e4SLinus Torvalds return status; 32331da177e4SLinus Torvalds 32341da177e4SLinus Torvalds READ_BUF(4); 32351da177e4SLinus Torvalds READ32(len); 32361da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 32371da177e4SLinus Torvalds return -EIO; 32381da177e4SLinus Torvalds fh->size = len; 32391da177e4SLinus Torvalds READ_BUF(len); 32401da177e4SLinus Torvalds COPYMEM(fh->data, len); 32411da177e4SLinus Torvalds return 0; 32421da177e4SLinus Torvalds } 32431da177e4SLinus Torvalds 32441da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 32451da177e4SLinus Torvalds { 32461da177e4SLinus Torvalds int status; 32471da177e4SLinus Torvalds 32481da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 32491da177e4SLinus Torvalds if (status) 32501da177e4SLinus Torvalds return status; 32511da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 32521da177e4SLinus Torvalds } 32531da177e4SLinus Torvalds 32541da177e4SLinus Torvalds /* 32551da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 32561da177e4SLinus Torvalds */ 3257911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 32581da177e4SLinus Torvalds { 3259911d1aafSTrond Myklebust uint64_t offset, length, clientid; 32608687b63aSAl Viro __be32 *p; 3261911d1aafSTrond Myklebust uint32_t namelen, type; 32621da177e4SLinus Torvalds 32631da177e4SLinus Torvalds READ_BUF(32); 3264911d1aafSTrond Myklebust READ64(offset); 3265911d1aafSTrond Myklebust READ64(length); 3266911d1aafSTrond Myklebust READ32(type); 3267911d1aafSTrond Myklebust if (fl != NULL) { 3268911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3269911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3270911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3271911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3272911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3273911d1aafSTrond Myklebust if (type & 1) 3274911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3275911d1aafSTrond Myklebust fl->fl_pid = 0; 3276911d1aafSTrond Myklebust } 3277911d1aafSTrond Myklebust READ64(clientid); 32781da177e4SLinus Torvalds READ32(namelen); 32791da177e4SLinus Torvalds READ_BUF(namelen); 32801da177e4SLinus Torvalds return -NFS4ERR_DENIED; 32811da177e4SLinus Torvalds } 32821da177e4SLinus Torvalds 3283911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 32841da177e4SLinus Torvalds { 32858687b63aSAl Viro __be32 *p; 32861da177e4SLinus Torvalds int status; 32871da177e4SLinus Torvalds 32881da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 32891da177e4SLinus Torvalds if (status == 0) { 32908ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 32918ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 32921da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3293911d1aafSTrond Myklebust return decode_lock_denied(xdr, NULL); 32941da177e4SLinus Torvalds return status; 32951da177e4SLinus Torvalds } 32961da177e4SLinus Torvalds 3297911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 32981da177e4SLinus Torvalds { 32991da177e4SLinus Torvalds int status; 33001da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 33011da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3302911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 33031da177e4SLinus Torvalds return status; 33041da177e4SLinus Torvalds } 33051da177e4SLinus Torvalds 3306911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 33071da177e4SLinus Torvalds { 33088687b63aSAl Viro __be32 *p; 33091da177e4SLinus Torvalds int status; 33101da177e4SLinus Torvalds 33111da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 33121da177e4SLinus Torvalds if (status == 0) { 33138ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33148ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33151da177e4SLinus Torvalds } 33161da177e4SLinus Torvalds return status; 33171da177e4SLinus Torvalds } 33181da177e4SLinus Torvalds 33191da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 33201da177e4SLinus Torvalds { 33211da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 33221da177e4SLinus Torvalds } 33231da177e4SLinus Torvalds 33241da177e4SLinus Torvalds /* This is too sick! */ 33251da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 33261da177e4SLinus Torvalds { 33278687b63aSAl Viro __be32 *p; 33281da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 33291da177e4SLinus Torvalds 33301da177e4SLinus Torvalds READ_BUF(12); 33311da177e4SLinus Torvalds READ32(limit_type); 33321da177e4SLinus Torvalds switch (limit_type) { 33331da177e4SLinus Torvalds case 1: 33341da177e4SLinus Torvalds READ64(*maxsize); 33351da177e4SLinus Torvalds break; 33361da177e4SLinus Torvalds case 2: 33371da177e4SLinus Torvalds READ32(nblocks); 33381da177e4SLinus Torvalds READ32(blocksize); 33391da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 33401da177e4SLinus Torvalds } 33411da177e4SLinus Torvalds return 0; 33421da177e4SLinus Torvalds } 33431da177e4SLinus Torvalds 33441da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 33451da177e4SLinus Torvalds { 33468687b63aSAl Viro __be32 *p; 33471da177e4SLinus Torvalds uint32_t delegation_type; 33481da177e4SLinus Torvalds 33491da177e4SLinus Torvalds READ_BUF(4); 33501da177e4SLinus Torvalds READ32(delegation_type); 33511da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 33521da177e4SLinus Torvalds res->delegation_type = 0; 33531da177e4SLinus Torvalds return 0; 33541da177e4SLinus Torvalds } 33558ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 33568ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 33571da177e4SLinus Torvalds READ32(res->do_recall); 33581da177e4SLinus Torvalds switch (delegation_type) { 33591da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 33601da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 33611da177e4SLinus Torvalds break; 33621da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 33631da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 33641da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 33651da177e4SLinus Torvalds return -EIO; 33661da177e4SLinus Torvalds } 33677539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 33681da177e4SLinus Torvalds } 33691da177e4SLinus Torvalds 33701da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 33711da177e4SLinus Torvalds { 33728687b63aSAl Viro __be32 *p; 3373aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 33741da177e4SLinus Torvalds int status; 33751da177e4SLinus Torvalds 33761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 33771da177e4SLinus Torvalds if (status) 33781da177e4SLinus Torvalds return status; 33798ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33808ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33811da177e4SLinus Torvalds 33821da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 33831da177e4SLinus Torvalds 33841da177e4SLinus Torvalds READ_BUF(8); 33851da177e4SLinus Torvalds READ32(res->rflags); 33861da177e4SLinus Torvalds READ32(bmlen); 33871da177e4SLinus Torvalds if (bmlen > 10) 33881da177e4SLinus Torvalds goto xdr_error; 33891da177e4SLinus Torvalds 33901da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3391aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3392aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3393aa53ed54SJeff Layton READ32(res->attrset[i]); 3394aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3395aa53ed54SJeff Layton res->attrset[i] = 0; 3396aa53ed54SJeff Layton 33971da177e4SLinus Torvalds return decode_delegation(xdr, res); 33981da177e4SLinus Torvalds xdr_error: 339916c32b71STrond Myklebust dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); 34001da177e4SLinus Torvalds return -EIO; 34011da177e4SLinus Torvalds } 34021da177e4SLinus Torvalds 34031da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 34041da177e4SLinus Torvalds { 34058687b63aSAl Viro __be32 *p; 34061da177e4SLinus Torvalds int status; 34071da177e4SLinus Torvalds 34081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 34091da177e4SLinus Torvalds if (status) 34101da177e4SLinus Torvalds return status; 34118ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 34128ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 34131da177e4SLinus Torvalds return 0; 34141da177e4SLinus Torvalds } 34151da177e4SLinus Torvalds 34161da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 34171da177e4SLinus Torvalds { 34188687b63aSAl Viro __be32 *p; 34191da177e4SLinus Torvalds int status; 34201da177e4SLinus Torvalds 34211da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 34221da177e4SLinus Torvalds if (status) 34231da177e4SLinus Torvalds return status; 34248ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 34258ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 34261da177e4SLinus Torvalds return 0; 34271da177e4SLinus Torvalds } 34281da177e4SLinus Torvalds 34291da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 34301da177e4SLinus Torvalds { 34311da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 34321da177e4SLinus Torvalds } 34331da177e4SLinus Torvalds 34341da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 34351da177e4SLinus Torvalds { 34361da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 34371da177e4SLinus Torvalds } 34381da177e4SLinus Torvalds 34391da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 34401da177e4SLinus Torvalds { 34411da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 34428687b63aSAl Viro __be32 *p; 34431da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 34441da177e4SLinus Torvalds int status; 34451da177e4SLinus Torvalds 34461da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 34471da177e4SLinus Torvalds if (status) 34481da177e4SLinus Torvalds return status; 34491da177e4SLinus Torvalds READ_BUF(8); 34501da177e4SLinus Torvalds READ32(eof); 34511da177e4SLinus Torvalds READ32(count); 34521da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 34531da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 34541da177e4SLinus Torvalds if (count > recvd) { 3455fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 34561da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 34571da177e4SLinus Torvalds count = recvd; 34581da177e4SLinus Torvalds eof = 0; 34591da177e4SLinus Torvalds } 34601da177e4SLinus Torvalds xdr_read_pages(xdr, count); 34611da177e4SLinus Torvalds res->eof = eof; 34621da177e4SLinus Torvalds res->count = count; 34631da177e4SLinus Torvalds return 0; 34641da177e4SLinus Torvalds } 34651da177e4SLinus Torvalds 34661da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 34671da177e4SLinus Torvalds { 34681da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 34691da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 34701da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 34711da177e4SLinus Torvalds unsigned int nr, pglen = rcvbuf->page_len; 34728687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 3473e8896495SDavid Howells uint32_t len, attrlen, xlen; 34741da177e4SLinus Torvalds int hdrlen, recvd, status; 34751da177e4SLinus Torvalds 34761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 34771da177e4SLinus Torvalds if (status) 34781da177e4SLinus Torvalds return status; 34791da177e4SLinus Torvalds READ_BUF(8); 34801da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 3481eadf4598STrond Myklebust dprintk("%s: verifier = 0x%x%x\n", 3482eadf4598STrond Myklebust __FUNCTION__, 3483eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3484eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3485eadf4598STrond Myklebust 34861da177e4SLinus Torvalds 34871da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 34881da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 34891da177e4SLinus Torvalds if (pglen > recvd) 34901da177e4SLinus Torvalds pglen = recvd; 34911da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 34921da177e4SLinus Torvalds 34931da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 34948687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3495e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 34961da177e4SLinus Torvalds entry = p; 34971da177e4SLinus Torvalds for (nr = 0; *p++; nr++) { 3498e8896495SDavid Howells if (end - p < 3) 34991da177e4SLinus Torvalds goto short_pkt; 3500eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 35011da177e4SLinus Torvalds p += 2; /* cookie */ 35021da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 35031da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3504fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3505fe82a183SChuck Lever len); 35061da177e4SLinus Torvalds goto err_unmap; 35071da177e4SLinus Torvalds } 3508e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3509e8896495SDavid Howells if (end - p < xlen + 1) 3510e8896495SDavid Howells goto short_pkt; 3511eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3512e8896495SDavid Howells p += xlen; 35131da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3514e8896495SDavid Howells if (end - p < len + 1) 3515e8896495SDavid Howells goto short_pkt; 35161da177e4SLinus Torvalds p += len; 35171da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3518e8896495SDavid Howells if (end - p < attrlen + 2) 35191da177e4SLinus Torvalds goto short_pkt; 3520e8896495SDavid Howells p += attrlen; /* attributes */ 35211da177e4SLinus Torvalds entry = p; 35221da177e4SLinus Torvalds } 35231da177e4SLinus Torvalds if (!nr && (entry[0] != 0 || entry[1] == 0)) 35241da177e4SLinus Torvalds goto short_pkt; 35251da177e4SLinus Torvalds out: 35261da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35271da177e4SLinus Torvalds return 0; 35281da177e4SLinus Torvalds short_pkt: 3529eadf4598STrond Myklebust dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); 35301da177e4SLinus Torvalds entry[0] = entry[1] = 0; 35311da177e4SLinus Torvalds /* truncate listing ? */ 35321da177e4SLinus Torvalds if (!nr) { 3533fe82a183SChuck Lever dprintk("NFS: readdir reply truncated!\n"); 35341da177e4SLinus Torvalds entry[1] = 1; 35351da177e4SLinus Torvalds } 35361da177e4SLinus Torvalds goto out; 35371da177e4SLinus Torvalds err_unmap: 35381da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35391da177e4SLinus Torvalds return -errno_NFSERR_IO; 35401da177e4SLinus Torvalds } 35411da177e4SLinus Torvalds 35421da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 35431da177e4SLinus Torvalds { 35441da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 35451da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 35461da177e4SLinus Torvalds int hdrlen, len, recvd; 35478687b63aSAl Viro __be32 *p; 35481da177e4SLinus Torvalds char *kaddr; 35491da177e4SLinus Torvalds int status; 35501da177e4SLinus Torvalds 35511da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 35521da177e4SLinus Torvalds if (status) 35531da177e4SLinus Torvalds return status; 35541da177e4SLinus Torvalds 35551da177e4SLinus Torvalds /* Convert length of symlink */ 35561da177e4SLinus Torvalds READ_BUF(4); 35571da177e4SLinus Torvalds READ32(len); 35581da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3559fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 35601da177e4SLinus Torvalds return -ENAMETOOLONG; 35611da177e4SLinus Torvalds } 35621da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 35631da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 35641da177e4SLinus Torvalds if (recvd < len) { 3565fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 35661da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 35671da177e4SLinus Torvalds return -EIO; 35681da177e4SLinus Torvalds } 35691da177e4SLinus Torvalds xdr_read_pages(xdr, len); 35701da177e4SLinus Torvalds /* 35711da177e4SLinus Torvalds * The XDR encode routine has set things up so that 35721da177e4SLinus Torvalds * the link text will be copied directly into the 35731da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 35741da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 35751da177e4SLinus Torvalds * null-termination). 35761da177e4SLinus Torvalds */ 35771da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 35781da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 35791da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35801da177e4SLinus Torvalds return 0; 35811da177e4SLinus Torvalds } 35821da177e4SLinus Torvalds 35831da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35841da177e4SLinus Torvalds { 35851da177e4SLinus Torvalds int status; 35861da177e4SLinus Torvalds 35871da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 35881da177e4SLinus Torvalds if (status) 35891da177e4SLinus Torvalds goto out; 35901da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 35911da177e4SLinus Torvalds out: 35921da177e4SLinus Torvalds return status; 35931da177e4SLinus Torvalds } 35941da177e4SLinus Torvalds 35951da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 35961da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 35971da177e4SLinus Torvalds { 35981da177e4SLinus Torvalds int status; 35991da177e4SLinus Torvalds 36001da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 36011da177e4SLinus Torvalds if (status) 36021da177e4SLinus Torvalds goto out; 36031da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 36041da177e4SLinus Torvalds goto out; 36051da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 36061da177e4SLinus Torvalds out: 36071da177e4SLinus Torvalds return status; 36081da177e4SLinus Torvalds } 36091da177e4SLinus Torvalds 36101da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 36111da177e4SLinus Torvalds { 36121da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 36131da177e4SLinus Torvalds } 36141da177e4SLinus Torvalds 361556ae19f3STrond Myklebust static int 361656ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 361756ae19f3STrond Myklebust { 361856ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 361956ae19f3STrond Myklebust } 362056ae19f3STrond Myklebust 3621029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3622029d105eSJ. Bruce Fields size_t *acl_len) 3623029d105eSJ. Bruce Fields { 36248687b63aSAl Viro __be32 *savep; 3625029d105eSJ. Bruce Fields uint32_t attrlen, 3626029d105eSJ. Bruce Fields bitmap[2] = {0}; 3627029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 3628029d105eSJ. Bruce Fields int status; 3629029d105eSJ. Bruce Fields 3630029d105eSJ. Bruce Fields *acl_len = 0; 3631029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3632029d105eSJ. Bruce Fields goto out; 3633029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3634029d105eSJ. Bruce Fields goto out; 3635029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3636029d105eSJ. Bruce Fields goto out; 3637029d105eSJ. Bruce Fields 3638029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3639029d105eSJ. Bruce Fields return -EIO; 3640029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3641029d105eSJ. Bruce Fields int hdrlen, recvd; 3642029d105eSJ. Bruce Fields 3643029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 3644029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 3645029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3646029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 3647029d105eSJ. Bruce Fields if (attrlen > recvd) { 3648fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 3649029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 3650029d105eSJ. Bruce Fields attrlen, recvd); 3651029d105eSJ. Bruce Fields return -EINVAL; 3652029d105eSJ. Bruce Fields } 3653029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 3654029d105eSJ. Bruce Fields *acl_len = attrlen; 36558c233cf9SJ. Bruce Fields } else 36568c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 3657029d105eSJ. Bruce Fields 3658029d105eSJ. Bruce Fields out: 3659029d105eSJ. Bruce Fields return status; 3660029d105eSJ. Bruce Fields } 3661029d105eSJ. Bruce Fields 36621da177e4SLinus Torvalds static int 36631da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 36641da177e4SLinus Torvalds { 36651da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 36661da177e4SLinus Torvalds } 36671da177e4SLinus Torvalds 36681da177e4SLinus Torvalds static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) 36691da177e4SLinus Torvalds { 36708687b63aSAl Viro __be32 *p; 36711da177e4SLinus Torvalds uint32_t bmlen; 36721da177e4SLinus Torvalds int status; 36731da177e4SLinus Torvalds 36741da177e4SLinus Torvalds 36751da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 36761da177e4SLinus Torvalds if (status) 36771da177e4SLinus Torvalds return status; 36781da177e4SLinus Torvalds READ_BUF(4); 36791da177e4SLinus Torvalds READ32(bmlen); 36801da177e4SLinus Torvalds READ_BUF(bmlen << 2); 36811da177e4SLinus Torvalds return 0; 36821da177e4SLinus Torvalds } 36831da177e4SLinus Torvalds 3684adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 36851da177e4SLinus Torvalds { 36868687b63aSAl Viro __be32 *p; 36871da177e4SLinus Torvalds uint32_t opnum; 36881da177e4SLinus Torvalds int32_t nfserr; 36891da177e4SLinus Torvalds 36901da177e4SLinus Torvalds READ_BUF(8); 36911da177e4SLinus Torvalds READ32(opnum); 36921da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 3693fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 36941da177e4SLinus Torvalds " %d\n", opnum); 36951da177e4SLinus Torvalds return -EIO; 36961da177e4SLinus Torvalds } 36971da177e4SLinus Torvalds READ32(nfserr); 36981da177e4SLinus Torvalds if (nfserr == NFS_OK) { 36998ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 37001da177e4SLinus Torvalds READ64(clp->cl_clientid); 37018ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 37021da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 37031da177e4SLinus Torvalds uint32_t len; 37041da177e4SLinus Torvalds 37051da177e4SLinus Torvalds /* skip netid string */ 37061da177e4SLinus Torvalds READ_BUF(4); 37071da177e4SLinus Torvalds READ32(len); 37081da177e4SLinus Torvalds READ_BUF(len); 37091da177e4SLinus Torvalds 37101da177e4SLinus Torvalds /* skip uaddr string */ 37111da177e4SLinus Torvalds READ_BUF(4); 37121da177e4SLinus Torvalds READ32(len); 37131da177e4SLinus Torvalds READ_BUF(len); 37141da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 37151da177e4SLinus Torvalds } else 37160a8ea437SDavid Howells return -nfs4_stat_to_errno(nfserr); 37171da177e4SLinus Torvalds 37181da177e4SLinus Torvalds return 0; 37191da177e4SLinus Torvalds } 37201da177e4SLinus Torvalds 37211da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 37221da177e4SLinus Torvalds { 37231da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 37241da177e4SLinus Torvalds } 37251da177e4SLinus Torvalds 37261da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 37271da177e4SLinus Torvalds { 37288687b63aSAl Viro __be32 *p; 37291da177e4SLinus Torvalds int status; 37301da177e4SLinus Torvalds 37311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 37321da177e4SLinus Torvalds if (status) 37331da177e4SLinus Torvalds return status; 37341da177e4SLinus Torvalds 37351da177e4SLinus Torvalds READ_BUF(16); 37361da177e4SLinus Torvalds READ32(res->count); 37371da177e4SLinus Torvalds READ32(res->verf->committed); 37381da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 37391da177e4SLinus Torvalds return 0; 37401da177e4SLinus Torvalds } 37411da177e4SLinus Torvalds 37421da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 37431da177e4SLinus Torvalds { 37441da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 37451da177e4SLinus Torvalds } 37461da177e4SLinus Torvalds 37471da177e4SLinus Torvalds /* 37481da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 37491da177e4SLinus Torvalds */ 37508687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 37511da177e4SLinus Torvalds { 37521da177e4SLinus Torvalds struct xdr_stream xdr; 37531da177e4SLinus Torvalds struct compound_hdr hdr; 37541da177e4SLinus Torvalds int status; 37551da177e4SLinus Torvalds 37561da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37571da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37581da177e4SLinus Torvalds if (status) 37591da177e4SLinus Torvalds goto out; 37601da177e4SLinus Torvalds status = decode_putfh(&xdr); 37611da177e4SLinus Torvalds if (status) 37621da177e4SLinus Torvalds goto out; 37631da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 3764516a6af6STrond Myklebust if (status != 0) 3765516a6af6STrond Myklebust goto out; 3766516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 37671da177e4SLinus Torvalds out: 37681da177e4SLinus Torvalds return status; 37691da177e4SLinus Torvalds } 37701da177e4SLinus Torvalds 37711da177e4SLinus Torvalds /* 37721da177e4SLinus Torvalds * END OF "GENERIC" DECODE ROUTINES. 37731da177e4SLinus Torvalds */ 37741da177e4SLinus Torvalds 37751da177e4SLinus Torvalds /* 37761da177e4SLinus Torvalds * Decode ACCESS response 37771da177e4SLinus Torvalds */ 37788687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 37791da177e4SLinus Torvalds { 37801da177e4SLinus Torvalds struct xdr_stream xdr; 37811da177e4SLinus Torvalds struct compound_hdr hdr; 37821da177e4SLinus Torvalds int status; 37831da177e4SLinus Torvalds 37841da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37851da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37861da177e4SLinus Torvalds goto out; 37871da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) == 0) 37881da177e4SLinus Torvalds status = decode_access(&xdr, res); 37891da177e4SLinus Torvalds out: 37901da177e4SLinus Torvalds return status; 37911da177e4SLinus Torvalds } 37921da177e4SLinus Torvalds 37931da177e4SLinus Torvalds /* 37941da177e4SLinus Torvalds * Decode LOOKUP response 37951da177e4SLinus Torvalds */ 37968687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 37971da177e4SLinus Torvalds { 37981da177e4SLinus Torvalds struct xdr_stream xdr; 37991da177e4SLinus Torvalds struct compound_hdr hdr; 38001da177e4SLinus Torvalds int status; 38011da177e4SLinus Torvalds 38021da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38031da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38041da177e4SLinus Torvalds goto out; 38051da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38061da177e4SLinus Torvalds goto out; 38071da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 38081da177e4SLinus Torvalds goto out; 38091da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 38101da177e4SLinus Torvalds goto out; 38111da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38121da177e4SLinus Torvalds out: 38131da177e4SLinus Torvalds return status; 38141da177e4SLinus Torvalds } 38151da177e4SLinus Torvalds 38161da177e4SLinus Torvalds /* 38171da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 38181da177e4SLinus Torvalds */ 38198687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 38201da177e4SLinus Torvalds { 38211da177e4SLinus Torvalds struct xdr_stream xdr; 38221da177e4SLinus Torvalds struct compound_hdr hdr; 38231da177e4SLinus Torvalds int status; 38241da177e4SLinus Torvalds 38251da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38261da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38271da177e4SLinus Torvalds goto out; 38281da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 38291da177e4SLinus Torvalds goto out; 38301da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 38311da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38321da177e4SLinus Torvalds out: 38331da177e4SLinus Torvalds return status; 38341da177e4SLinus Torvalds } 38351da177e4SLinus Torvalds 38361da177e4SLinus Torvalds /* 38371da177e4SLinus Torvalds * Decode REMOVE response 38381da177e4SLinus Torvalds */ 38394fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 38401da177e4SLinus Torvalds { 38411da177e4SLinus Torvalds struct xdr_stream xdr; 38421da177e4SLinus Torvalds struct compound_hdr hdr; 38431da177e4SLinus Torvalds int status; 38441da177e4SLinus Torvalds 38451da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38461da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38471da177e4SLinus Torvalds goto out; 384816e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 384916e42959STrond Myklebust goto out; 385016e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 385116e42959STrond Myklebust goto out; 38524fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 38531da177e4SLinus Torvalds out: 38541da177e4SLinus Torvalds return status; 38551da177e4SLinus Torvalds } 38561da177e4SLinus Torvalds 38571da177e4SLinus Torvalds /* 38581da177e4SLinus Torvalds * Decode RENAME response 38591da177e4SLinus Torvalds */ 38608687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 38611da177e4SLinus Torvalds { 38621da177e4SLinus Torvalds struct xdr_stream xdr; 38631da177e4SLinus Torvalds struct compound_hdr hdr; 38641da177e4SLinus Torvalds int status; 38651da177e4SLinus Torvalds 38661da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38671da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38681da177e4SLinus Torvalds goto out; 38691da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38701da177e4SLinus Torvalds goto out; 38711da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 38721da177e4SLinus Torvalds goto out; 38731da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38741da177e4SLinus Torvalds goto out; 38756caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 38766caf2c82STrond Myklebust goto out; 38776caf2c82STrond Myklebust /* Current FH is target directory */ 38786caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 38796caf2c82STrond Myklebust goto out; 38806caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 38816caf2c82STrond Myklebust goto out; 38826caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 38831da177e4SLinus Torvalds out: 38841da177e4SLinus Torvalds return status; 38851da177e4SLinus Torvalds } 38861da177e4SLinus Torvalds 38871da177e4SLinus Torvalds /* 38881da177e4SLinus Torvalds * Decode LINK response 38891da177e4SLinus Torvalds */ 38908687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 38911da177e4SLinus Torvalds { 38921da177e4SLinus Torvalds struct xdr_stream xdr; 38931da177e4SLinus Torvalds struct compound_hdr hdr; 38941da177e4SLinus Torvalds int status; 38951da177e4SLinus Torvalds 38961da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38971da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38981da177e4SLinus Torvalds goto out; 38991da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39001da177e4SLinus Torvalds goto out; 39011da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 39021da177e4SLinus Torvalds goto out; 39031da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39041da177e4SLinus Torvalds goto out; 390591ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 390691ba2eeeSTrond Myklebust goto out; 390791ba2eeeSTrond Myklebust /* 390891ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 390991ba2eeeSTrond Myklebust * filehandle. 391091ba2eeeSTrond Myklebust */ 391191ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 391291ba2eeeSTrond Myklebust goto out; 391391ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 391491ba2eeeSTrond Myklebust goto out; 391591ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 39161da177e4SLinus Torvalds out: 39171da177e4SLinus Torvalds return status; 39181da177e4SLinus Torvalds } 39191da177e4SLinus Torvalds 39201da177e4SLinus Torvalds /* 39211da177e4SLinus Torvalds * Decode CREATE response 39221da177e4SLinus Torvalds */ 39238687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39241da177e4SLinus Torvalds { 39251da177e4SLinus Torvalds struct xdr_stream xdr; 39261da177e4SLinus Torvalds struct compound_hdr hdr; 39271da177e4SLinus Torvalds int status; 39281da177e4SLinus Torvalds 39291da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39301da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 39311da177e4SLinus Torvalds goto out; 39321da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39331da177e4SLinus Torvalds goto out; 393456ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 393556ae19f3STrond Myklebust goto out; 39361da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 39371da177e4SLinus Torvalds goto out; 39381da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 39391da177e4SLinus Torvalds goto out; 394056ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 394156ae19f3STrond Myklebust goto out; 394256ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 394356ae19f3STrond Myklebust goto out; 394456ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 39451da177e4SLinus Torvalds out: 39461da177e4SLinus Torvalds return status; 39471da177e4SLinus Torvalds } 39481da177e4SLinus Torvalds 39491da177e4SLinus Torvalds /* 39501da177e4SLinus Torvalds * Decode SYMLINK response 39511da177e4SLinus Torvalds */ 39528687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39531da177e4SLinus Torvalds { 39541da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 39551da177e4SLinus Torvalds } 39561da177e4SLinus Torvalds 39571da177e4SLinus Torvalds /* 39581da177e4SLinus Torvalds * Decode GETATTR response 39591da177e4SLinus Torvalds */ 39608687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 39611da177e4SLinus Torvalds { 39621da177e4SLinus Torvalds struct xdr_stream xdr; 39631da177e4SLinus Torvalds struct compound_hdr hdr; 39641da177e4SLinus Torvalds int status; 39651da177e4SLinus Torvalds 39661da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39671da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39681da177e4SLinus Torvalds if (status) 39691da177e4SLinus Torvalds goto out; 39701da177e4SLinus Torvalds status = decode_putfh(&xdr); 39711da177e4SLinus Torvalds if (status) 39721da177e4SLinus Torvalds goto out; 39731da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 39741da177e4SLinus Torvalds out: 39751da177e4SLinus Torvalds return status; 39761da177e4SLinus Torvalds 39771da177e4SLinus Torvalds } 39781da177e4SLinus Torvalds 397923ec6965SJ. Bruce Fields /* 398023ec6965SJ. Bruce Fields * Encode an SETACL request 398123ec6965SJ. Bruce Fields */ 398223ec6965SJ. Bruce Fields static int 39838687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 398423ec6965SJ. Bruce Fields { 398523ec6965SJ. Bruce Fields struct xdr_stream xdr; 398623ec6965SJ. Bruce Fields struct compound_hdr hdr = { 398723ec6965SJ. Bruce Fields .nops = 2, 398823ec6965SJ. Bruce Fields }; 398923ec6965SJ. Bruce Fields int status; 399023ec6965SJ. Bruce Fields 399123ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 399223ec6965SJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 399323ec6965SJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 399423ec6965SJ. Bruce Fields if (status) 399523ec6965SJ. Bruce Fields goto out; 399623ec6965SJ. Bruce Fields status = encode_setacl(&xdr, args); 399723ec6965SJ. Bruce Fields out: 399823ec6965SJ. Bruce Fields return status; 399923ec6965SJ. Bruce Fields } 400023ec6965SJ. Bruce Fields /* 400123ec6965SJ. Bruce Fields * Decode SETACL response 400223ec6965SJ. Bruce Fields */ 400323ec6965SJ. Bruce Fields static int 40048687b63aSAl Viro nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) 400523ec6965SJ. Bruce Fields { 400623ec6965SJ. Bruce Fields struct xdr_stream xdr; 400723ec6965SJ. Bruce Fields struct compound_hdr hdr; 400823ec6965SJ. Bruce Fields int status; 400923ec6965SJ. Bruce Fields 401023ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 401123ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 401223ec6965SJ. Bruce Fields if (status) 401323ec6965SJ. Bruce Fields goto out; 401423ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 401523ec6965SJ. Bruce Fields if (status) 401623ec6965SJ. Bruce Fields goto out; 401723ec6965SJ. Bruce Fields status = decode_setattr(&xdr, res); 401823ec6965SJ. Bruce Fields out: 401923ec6965SJ. Bruce Fields return status; 402023ec6965SJ. Bruce Fields } 40211da177e4SLinus Torvalds 40221da177e4SLinus Torvalds /* 4023029d105eSJ. Bruce Fields * Decode GETACL response 4024029d105eSJ. Bruce Fields */ 4025029d105eSJ. Bruce Fields static int 40268687b63aSAl Viro nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) 4027029d105eSJ. Bruce Fields { 4028029d105eSJ. Bruce Fields struct xdr_stream xdr; 4029029d105eSJ. Bruce Fields struct compound_hdr hdr; 4030029d105eSJ. Bruce Fields int status; 4031029d105eSJ. Bruce Fields 4032029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4033029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4034029d105eSJ. Bruce Fields if (status) 4035029d105eSJ. Bruce Fields goto out; 4036029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4037029d105eSJ. Bruce Fields if (status) 4038029d105eSJ. Bruce Fields goto out; 4039029d105eSJ. Bruce Fields status = decode_getacl(&xdr, rqstp, acl_len); 4040029d105eSJ. Bruce Fields 4041029d105eSJ. Bruce Fields out: 4042029d105eSJ. Bruce Fields return status; 4043029d105eSJ. Bruce Fields } 4044029d105eSJ. Bruce Fields 4045029d105eSJ. Bruce Fields /* 40461da177e4SLinus Torvalds * Decode CLOSE response 40471da177e4SLinus Torvalds */ 40488687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 40491da177e4SLinus Torvalds { 40501da177e4SLinus Torvalds struct xdr_stream xdr; 40511da177e4SLinus Torvalds struct compound_hdr hdr; 40521da177e4SLinus Torvalds int status; 40531da177e4SLinus Torvalds 40541da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40551da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40561da177e4SLinus Torvalds if (status) 40571da177e4SLinus Torvalds goto out; 40581da177e4SLinus Torvalds status = decode_putfh(&xdr); 40591da177e4SLinus Torvalds if (status) 40601da177e4SLinus Torvalds goto out; 40611da177e4SLinus Torvalds status = decode_close(&xdr, res); 4062516a6af6STrond Myklebust if (status != 0) 4063516a6af6STrond Myklebust goto out; 4064516a6af6STrond Myklebust /* 4065516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4066516a6af6STrond Myklebust * in which case the getattr call will fail with 4067516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4068516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4069516a6af6STrond Myklebust */ 4070516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 40711da177e4SLinus Torvalds out: 40721da177e4SLinus Torvalds return status; 40731da177e4SLinus Torvalds } 40741da177e4SLinus Torvalds 40751da177e4SLinus Torvalds /* 40761da177e4SLinus Torvalds * Decode OPEN response 40771da177e4SLinus Torvalds */ 40788687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 40791da177e4SLinus Torvalds { 40801da177e4SLinus Torvalds struct xdr_stream xdr; 40811da177e4SLinus Torvalds struct compound_hdr hdr; 40821da177e4SLinus Torvalds int status; 40831da177e4SLinus Torvalds 40841da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40851da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40861da177e4SLinus Torvalds if (status) 40871da177e4SLinus Torvalds goto out; 40881da177e4SLinus Torvalds status = decode_putfh(&xdr); 40891da177e4SLinus Torvalds if (status) 40901da177e4SLinus Torvalds goto out; 409156ae19f3STrond Myklebust status = decode_savefh(&xdr); 409256ae19f3STrond Myklebust if (status) 409356ae19f3STrond Myklebust goto out; 40941da177e4SLinus Torvalds status = decode_open(&xdr, res); 40951da177e4SLinus Torvalds if (status) 40961da177e4SLinus Torvalds goto out; 40979936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 40981da177e4SLinus Torvalds goto out; 409956ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 410056ae19f3STrond Myklebust goto out; 4101365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 410256ae19f3STrond Myklebust goto out; 410356ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 41041da177e4SLinus Torvalds out: 41051da177e4SLinus Torvalds return status; 41061da177e4SLinus Torvalds } 41071da177e4SLinus Torvalds 41081da177e4SLinus Torvalds /* 41091da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 41101da177e4SLinus Torvalds */ 41118687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 41121da177e4SLinus Torvalds { 41131da177e4SLinus Torvalds struct xdr_stream xdr; 41141da177e4SLinus Torvalds struct compound_hdr hdr; 41151da177e4SLinus Torvalds int status; 41161da177e4SLinus Torvalds 41171da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41181da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41191da177e4SLinus Torvalds if (status) 41201da177e4SLinus Torvalds goto out; 41211da177e4SLinus Torvalds status = decode_putfh(&xdr); 41221da177e4SLinus Torvalds if (status) 41231da177e4SLinus Torvalds goto out; 41241da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 41251da177e4SLinus Torvalds out: 41261da177e4SLinus Torvalds return status; 41271da177e4SLinus Torvalds } 41281da177e4SLinus Torvalds 41291da177e4SLinus Torvalds /* 41301da177e4SLinus Torvalds * Decode OPEN response 41311da177e4SLinus Torvalds */ 41328687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 41331da177e4SLinus Torvalds { 41341da177e4SLinus Torvalds struct xdr_stream xdr; 41351da177e4SLinus Torvalds struct compound_hdr hdr; 41361da177e4SLinus Torvalds int status; 41371da177e4SLinus Torvalds 41381da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41391da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41401da177e4SLinus Torvalds if (status) 41411da177e4SLinus Torvalds goto out; 41421da177e4SLinus Torvalds status = decode_putfh(&xdr); 41431da177e4SLinus Torvalds if (status) 41441da177e4SLinus Torvalds goto out; 41451da177e4SLinus Torvalds status = decode_open(&xdr, res); 4146864472e9STrond Myklebust if (status) 4147864472e9STrond Myklebust goto out; 4148864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 41491da177e4SLinus Torvalds out: 41501da177e4SLinus Torvalds return status; 41511da177e4SLinus Torvalds } 41521da177e4SLinus Torvalds 41531da177e4SLinus Torvalds /* 41541da177e4SLinus Torvalds * Decode SETATTR response 41551da177e4SLinus Torvalds */ 41568687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 41571da177e4SLinus Torvalds { 41581da177e4SLinus Torvalds struct xdr_stream xdr; 41591da177e4SLinus Torvalds struct compound_hdr hdr; 41601da177e4SLinus Torvalds int status; 41611da177e4SLinus Torvalds 41621da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41631da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41641da177e4SLinus Torvalds if (status) 41651da177e4SLinus Torvalds goto out; 41661da177e4SLinus Torvalds status = decode_putfh(&xdr); 41671da177e4SLinus Torvalds if (status) 41681da177e4SLinus Torvalds goto out; 41691da177e4SLinus Torvalds status = decode_setattr(&xdr, res); 41701da177e4SLinus Torvalds if (status) 41711da177e4SLinus Torvalds goto out; 41721da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 41731da177e4SLinus Torvalds if (status == NFS4ERR_DELAY) 41741da177e4SLinus Torvalds status = 0; 41751da177e4SLinus Torvalds out: 41761da177e4SLinus Torvalds return status; 41771da177e4SLinus Torvalds } 41781da177e4SLinus Torvalds 41791da177e4SLinus Torvalds /* 41801da177e4SLinus Torvalds * Decode LOCK response 41811da177e4SLinus Torvalds */ 41828687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 41831da177e4SLinus Torvalds { 41841da177e4SLinus Torvalds struct xdr_stream xdr; 41851da177e4SLinus Torvalds struct compound_hdr hdr; 41861da177e4SLinus Torvalds int status; 41871da177e4SLinus Torvalds 41881da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41891da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41901da177e4SLinus Torvalds if (status) 41911da177e4SLinus Torvalds goto out; 41921da177e4SLinus Torvalds status = decode_putfh(&xdr); 41931da177e4SLinus Torvalds if (status) 41941da177e4SLinus Torvalds goto out; 41951da177e4SLinus Torvalds status = decode_lock(&xdr, res); 41961da177e4SLinus Torvalds out: 41971da177e4SLinus Torvalds return status; 41981da177e4SLinus Torvalds } 41991da177e4SLinus Torvalds 42001da177e4SLinus Torvalds /* 42011da177e4SLinus Torvalds * Decode LOCKT response 42021da177e4SLinus Torvalds */ 42038687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 42041da177e4SLinus Torvalds { 42051da177e4SLinus Torvalds struct xdr_stream xdr; 42061da177e4SLinus Torvalds struct compound_hdr hdr; 42071da177e4SLinus Torvalds int status; 42081da177e4SLinus Torvalds 42091da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42101da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42111da177e4SLinus Torvalds if (status) 42121da177e4SLinus Torvalds goto out; 42131da177e4SLinus Torvalds status = decode_putfh(&xdr); 42141da177e4SLinus Torvalds if (status) 42151da177e4SLinus Torvalds goto out; 42161da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 42171da177e4SLinus Torvalds out: 42181da177e4SLinus Torvalds return status; 42191da177e4SLinus Torvalds } 42201da177e4SLinus Torvalds 42211da177e4SLinus Torvalds /* 42221da177e4SLinus Torvalds * Decode LOCKU response 42231da177e4SLinus Torvalds */ 42248687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 42251da177e4SLinus Torvalds { 42261da177e4SLinus Torvalds struct xdr_stream xdr; 42271da177e4SLinus Torvalds struct compound_hdr hdr; 42281da177e4SLinus Torvalds int status; 42291da177e4SLinus Torvalds 42301da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42311da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42321da177e4SLinus Torvalds if (status) 42331da177e4SLinus Torvalds goto out; 42341da177e4SLinus Torvalds status = decode_putfh(&xdr); 42351da177e4SLinus Torvalds if (status) 42361da177e4SLinus Torvalds goto out; 42371da177e4SLinus Torvalds status = decode_locku(&xdr, res); 42381da177e4SLinus Torvalds out: 42391da177e4SLinus Torvalds return status; 42401da177e4SLinus Torvalds } 42411da177e4SLinus Torvalds 42421da177e4SLinus Torvalds /* 42431da177e4SLinus Torvalds * Decode READLINK response 42441da177e4SLinus Torvalds */ 42458687b63aSAl Viro static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) 42461da177e4SLinus Torvalds { 42471da177e4SLinus Torvalds struct xdr_stream xdr; 42481da177e4SLinus Torvalds struct compound_hdr hdr; 42491da177e4SLinus Torvalds int status; 42501da177e4SLinus Torvalds 42511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42531da177e4SLinus Torvalds if (status) 42541da177e4SLinus Torvalds goto out; 42551da177e4SLinus Torvalds status = decode_putfh(&xdr); 42561da177e4SLinus Torvalds if (status) 42571da177e4SLinus Torvalds goto out; 42581da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 42591da177e4SLinus Torvalds out: 42601da177e4SLinus Torvalds return status; 42611da177e4SLinus Torvalds } 42621da177e4SLinus Torvalds 42631da177e4SLinus Torvalds /* 42641da177e4SLinus Torvalds * Decode READDIR response 42651da177e4SLinus Torvalds */ 42668687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 42671da177e4SLinus Torvalds { 42681da177e4SLinus Torvalds struct xdr_stream xdr; 42691da177e4SLinus Torvalds struct compound_hdr hdr; 42701da177e4SLinus Torvalds int status; 42711da177e4SLinus Torvalds 42721da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42731da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42741da177e4SLinus Torvalds if (status) 42751da177e4SLinus Torvalds goto out; 42761da177e4SLinus Torvalds status = decode_putfh(&xdr); 42771da177e4SLinus Torvalds if (status) 42781da177e4SLinus Torvalds goto out; 42791da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 42801da177e4SLinus Torvalds out: 42811da177e4SLinus Torvalds return status; 42821da177e4SLinus Torvalds } 42831da177e4SLinus Torvalds 42841da177e4SLinus Torvalds /* 42851da177e4SLinus Torvalds * Decode Read response 42861da177e4SLinus Torvalds */ 42878687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 42881da177e4SLinus Torvalds { 42891da177e4SLinus Torvalds struct xdr_stream xdr; 42901da177e4SLinus Torvalds struct compound_hdr hdr; 42911da177e4SLinus Torvalds int status; 42921da177e4SLinus Torvalds 42931da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42941da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42951da177e4SLinus Torvalds if (status) 42961da177e4SLinus Torvalds goto out; 42971da177e4SLinus Torvalds status = decode_putfh(&xdr); 42981da177e4SLinus Torvalds if (status) 42991da177e4SLinus Torvalds goto out; 43001da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 43011da177e4SLinus Torvalds if (!status) 43021da177e4SLinus Torvalds status = res->count; 43031da177e4SLinus Torvalds out: 43041da177e4SLinus Torvalds return status; 43051da177e4SLinus Torvalds } 43061da177e4SLinus Torvalds 43071da177e4SLinus Torvalds /* 43081da177e4SLinus Torvalds * Decode WRITE response 43091da177e4SLinus Torvalds */ 43108687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 43111da177e4SLinus Torvalds { 43121da177e4SLinus Torvalds struct xdr_stream xdr; 43131da177e4SLinus Torvalds struct compound_hdr hdr; 43141da177e4SLinus Torvalds int status; 43151da177e4SLinus Torvalds 43161da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43171da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43181da177e4SLinus Torvalds if (status) 43191da177e4SLinus Torvalds goto out; 43201da177e4SLinus Torvalds status = decode_putfh(&xdr); 43211da177e4SLinus Torvalds if (status) 43221da177e4SLinus Torvalds goto out; 43231da177e4SLinus Torvalds status = decode_write(&xdr, res); 43244f9838c7STrond Myklebust if (status) 43254f9838c7STrond Myklebust goto out; 43264f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43271da177e4SLinus Torvalds if (!status) 43281da177e4SLinus Torvalds status = res->count; 43291da177e4SLinus Torvalds out: 43301da177e4SLinus Torvalds return status; 43311da177e4SLinus Torvalds } 43321da177e4SLinus Torvalds 43331da177e4SLinus Torvalds /* 43341da177e4SLinus Torvalds * Decode COMMIT response 43351da177e4SLinus Torvalds */ 43368687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 43371da177e4SLinus Torvalds { 43381da177e4SLinus Torvalds struct xdr_stream xdr; 43391da177e4SLinus Torvalds struct compound_hdr hdr; 43401da177e4SLinus Torvalds int status; 43411da177e4SLinus Torvalds 43421da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43431da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43441da177e4SLinus Torvalds if (status) 43451da177e4SLinus Torvalds goto out; 43461da177e4SLinus Torvalds status = decode_putfh(&xdr); 43471da177e4SLinus Torvalds if (status) 43481da177e4SLinus Torvalds goto out; 43491da177e4SLinus Torvalds status = decode_commit(&xdr, res); 43504f9838c7STrond Myklebust if (status) 43514f9838c7STrond Myklebust goto out; 43524f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43531da177e4SLinus Torvalds out: 43541da177e4SLinus Torvalds return status; 43551da177e4SLinus Torvalds } 43561da177e4SLinus Torvalds 43571da177e4SLinus Torvalds /* 43581da177e4SLinus Torvalds * FSINFO request 43591da177e4SLinus Torvalds */ 43608687b63aSAl Viro static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 43611da177e4SLinus Torvalds { 43621da177e4SLinus Torvalds struct xdr_stream xdr; 43631da177e4SLinus Torvalds struct compound_hdr hdr; 43641da177e4SLinus Torvalds int status; 43651da177e4SLinus Torvalds 43661da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43671da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43681da177e4SLinus Torvalds if (!status) 43691da177e4SLinus Torvalds status = decode_putfh(&xdr); 43701da177e4SLinus Torvalds if (!status) 43711da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 43721da177e4SLinus Torvalds if (!status) 43730a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 43741da177e4SLinus Torvalds return status; 43751da177e4SLinus Torvalds } 43761da177e4SLinus Torvalds 43771da177e4SLinus Torvalds /* 43781da177e4SLinus Torvalds * PATHCONF request 43791da177e4SLinus Torvalds */ 43808687b63aSAl Viro static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) 43811da177e4SLinus Torvalds { 43821da177e4SLinus Torvalds struct xdr_stream xdr; 43831da177e4SLinus Torvalds struct compound_hdr hdr; 43841da177e4SLinus Torvalds int status; 43851da177e4SLinus Torvalds 43861da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43871da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43881da177e4SLinus Torvalds if (!status) 43891da177e4SLinus Torvalds status = decode_putfh(&xdr); 43901da177e4SLinus Torvalds if (!status) 43911da177e4SLinus Torvalds status = decode_pathconf(&xdr, pathconf); 43921da177e4SLinus Torvalds return status; 43931da177e4SLinus Torvalds } 43941da177e4SLinus Torvalds 43951da177e4SLinus Torvalds /* 43961da177e4SLinus Torvalds * STATFS request 43971da177e4SLinus Torvalds */ 43988687b63aSAl Viro static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) 43991da177e4SLinus Torvalds { 44001da177e4SLinus Torvalds struct xdr_stream xdr; 44011da177e4SLinus Torvalds struct compound_hdr hdr; 44021da177e4SLinus Torvalds int status; 44031da177e4SLinus Torvalds 44041da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44051da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44061da177e4SLinus Torvalds if (!status) 44071da177e4SLinus Torvalds status = decode_putfh(&xdr); 44081da177e4SLinus Torvalds if (!status) 44091da177e4SLinus Torvalds status = decode_statfs(&xdr, fsstat); 44101da177e4SLinus Torvalds return status; 44111da177e4SLinus Torvalds } 44121da177e4SLinus Torvalds 44131da177e4SLinus Torvalds /* 44141da177e4SLinus Torvalds * GETATTR_BITMAP request 44151da177e4SLinus Torvalds */ 44168687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 44171da177e4SLinus Torvalds { 44181da177e4SLinus Torvalds struct xdr_stream xdr; 44191da177e4SLinus Torvalds struct compound_hdr hdr; 44201da177e4SLinus Torvalds int status; 44211da177e4SLinus Torvalds 44221da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44231da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 44241da177e4SLinus Torvalds goto out; 44251da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44261da177e4SLinus Torvalds goto out; 44271da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 44281da177e4SLinus Torvalds out: 44291da177e4SLinus Torvalds return status; 44301da177e4SLinus Torvalds } 44311da177e4SLinus Torvalds 44321da177e4SLinus Torvalds /* 44331da177e4SLinus Torvalds * Decode RENEW response 44341da177e4SLinus Torvalds */ 44358687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 44361da177e4SLinus Torvalds { 44371da177e4SLinus Torvalds struct xdr_stream xdr; 44381da177e4SLinus Torvalds struct compound_hdr hdr; 44391da177e4SLinus Torvalds int status; 44401da177e4SLinus Torvalds 44411da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44421da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44431da177e4SLinus Torvalds if (!status) 44441da177e4SLinus Torvalds status = decode_renew(&xdr); 44451da177e4SLinus Torvalds return status; 44461da177e4SLinus Torvalds } 44471da177e4SLinus Torvalds 44481da177e4SLinus Torvalds /* 44491da177e4SLinus Torvalds * a SETCLIENTID request 44501da177e4SLinus Torvalds */ 44518687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 4452adfa6f98SDavid Howells struct nfs_client *clp) 44531da177e4SLinus Torvalds { 44541da177e4SLinus Torvalds struct xdr_stream xdr; 44551da177e4SLinus Torvalds struct compound_hdr hdr; 44561da177e4SLinus Torvalds int status; 44571da177e4SLinus Torvalds 44581da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44591da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44601da177e4SLinus Torvalds if (!status) 44611da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 44621da177e4SLinus Torvalds if (!status) 44630a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 44641da177e4SLinus Torvalds return status; 44651da177e4SLinus Torvalds } 44661da177e4SLinus Torvalds 44671da177e4SLinus Torvalds /* 44681da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 44691da177e4SLinus Torvalds */ 44708687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 44711da177e4SLinus Torvalds { 44721da177e4SLinus Torvalds struct xdr_stream xdr; 44731da177e4SLinus Torvalds struct compound_hdr hdr; 44741da177e4SLinus Torvalds int status; 44751da177e4SLinus Torvalds 44761da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44771da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44781da177e4SLinus Torvalds if (!status) 44791da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 44801da177e4SLinus Torvalds if (!status) 44811da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 44821da177e4SLinus Torvalds if (!status) 44831da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 44841da177e4SLinus Torvalds if (!status) 44850a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 44861da177e4SLinus Torvalds return status; 44871da177e4SLinus Torvalds } 44881da177e4SLinus Torvalds 44891da177e4SLinus Torvalds /* 44901da177e4SLinus Torvalds * DELEGRETURN request 44911da177e4SLinus Torvalds */ 44928687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 44931da177e4SLinus Torvalds { 44941da177e4SLinus Torvalds struct xdr_stream xdr; 44951da177e4SLinus Torvalds struct compound_hdr hdr; 44961da177e4SLinus Torvalds int status; 44971da177e4SLinus Torvalds 44981da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44991da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 4500fa178f29STrond Myklebust if (status != 0) 4501fa178f29STrond Myklebust goto out; 45021da177e4SLinus Torvalds status = decode_putfh(&xdr); 4503fa178f29STrond Myklebust if (status != 0) 4504fa178f29STrond Myklebust goto out; 45051da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 4506fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 4507fa178f29STrond Myklebust out: 45081da177e4SLinus Torvalds return status; 45091da177e4SLinus Torvalds } 45101da177e4SLinus Torvalds 4511683b57b4STrond Myklebust /* 4512683b57b4STrond Myklebust * FS_LOCATIONS request 4513683b57b4STrond Myklebust */ 45148687b63aSAl Viro static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) 4515683b57b4STrond Myklebust { 4516683b57b4STrond Myklebust struct xdr_stream xdr; 4517683b57b4STrond Myklebust struct compound_hdr hdr; 4518683b57b4STrond Myklebust int status; 4519683b57b4STrond Myklebust 4520683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4521683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 4522683b57b4STrond Myklebust if (status != 0) 4523683b57b4STrond Myklebust goto out; 4524683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 4525683b57b4STrond Myklebust goto out; 4526683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 4527683b57b4STrond Myklebust goto out; 4528683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 4529683b57b4STrond Myklebust status = decode_getfattr(&xdr, &res->fattr, res->server); 4530683b57b4STrond Myklebust out: 4531683b57b4STrond Myklebust return status; 4532683b57b4STrond Myklebust } 4533683b57b4STrond Myklebust 45340dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 45351da177e4SLinus Torvalds { 45361da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 45371da177e4SLinus Torvalds uint32_t len; 45381da177e4SLinus Torvalds 45391da177e4SLinus Torvalds if (!*p++) { 45401da177e4SLinus Torvalds if (!*p) 45411da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 45421da177e4SLinus Torvalds entry->eof = 1; 45431da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 45441da177e4SLinus Torvalds } 45451da177e4SLinus Torvalds 45461da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 45471da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 45481da177e4SLinus Torvalds entry->len = ntohl(*p++); 45491da177e4SLinus Torvalds entry->name = (const char *) p; 45501da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 45511da177e4SLinus Torvalds 45521da177e4SLinus Torvalds /* 45531da177e4SLinus Torvalds * In case the server doesn't return an inode number, 45541da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 45551da177e4SLinus Torvalds * since glibc seems to choke on it...) 45561da177e4SLinus Torvalds */ 45571da177e4SLinus Torvalds entry->ino = 1; 45581da177e4SLinus Torvalds 45591da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 45601da177e4SLinus Torvalds if (len-- > 0) { 45611da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 45621da177e4SLinus Torvalds if (len-- > 0) { 45631da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 45641da177e4SLinus Torvalds p += len; 45651da177e4SLinus Torvalds } 45661da177e4SLinus Torvalds } 45671da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 45681da177e4SLinus Torvalds if (len > 0) { 456997d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 457097d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 457197d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 457297d312d0SManoj Naik p++; 457397d312d0SManoj Naik len--; 457497d312d0SManoj Naik } 45751da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 45761da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45771da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 45781da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45791da177e4SLinus Torvalds p += len; 45801da177e4SLinus Torvalds } 45811da177e4SLinus Torvalds 45821da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 45831da177e4SLinus Torvalds return p; 45841da177e4SLinus Torvalds } 45851da177e4SLinus Torvalds 45861da177e4SLinus Torvalds /* 45871da177e4SLinus Torvalds * We need to translate between nfs status return values and 45881da177e4SLinus Torvalds * the local errno values which may not be the same. 45891da177e4SLinus Torvalds */ 45901da177e4SLinus Torvalds static struct { 45911da177e4SLinus Torvalds int stat; 45921da177e4SLinus Torvalds int errno; 45931da177e4SLinus Torvalds } nfs_errtbl[] = { 45941da177e4SLinus Torvalds { NFS4_OK, 0 }, 45951da177e4SLinus Torvalds { NFS4ERR_PERM, EPERM }, 45961da177e4SLinus Torvalds { NFS4ERR_NOENT, ENOENT }, 45971da177e4SLinus Torvalds { NFS4ERR_IO, errno_NFSERR_IO }, 45981da177e4SLinus Torvalds { NFS4ERR_NXIO, ENXIO }, 45991da177e4SLinus Torvalds { NFS4ERR_ACCESS, EACCES }, 46001da177e4SLinus Torvalds { NFS4ERR_EXIST, EEXIST }, 46011da177e4SLinus Torvalds { NFS4ERR_XDEV, EXDEV }, 46021da177e4SLinus Torvalds { NFS4ERR_NOTDIR, ENOTDIR }, 46031da177e4SLinus Torvalds { NFS4ERR_ISDIR, EISDIR }, 46041da177e4SLinus Torvalds { NFS4ERR_INVAL, EINVAL }, 46051da177e4SLinus Torvalds { NFS4ERR_FBIG, EFBIG }, 46061da177e4SLinus Torvalds { NFS4ERR_NOSPC, ENOSPC }, 46071da177e4SLinus Torvalds { NFS4ERR_ROFS, EROFS }, 46081da177e4SLinus Torvalds { NFS4ERR_MLINK, EMLINK }, 46091da177e4SLinus Torvalds { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, 46101da177e4SLinus Torvalds { NFS4ERR_NOTEMPTY, ENOTEMPTY }, 46111da177e4SLinus Torvalds { NFS4ERR_DQUOT, EDQUOT }, 46121da177e4SLinus Torvalds { NFS4ERR_STALE, ESTALE }, 46131da177e4SLinus Torvalds { NFS4ERR_BADHANDLE, EBADHANDLE }, 46146ebf3656SManoj Naik { NFS4ERR_BADOWNER, EINVAL }, 46156ebf3656SManoj Naik { NFS4ERR_BADNAME, EINVAL }, 46161da177e4SLinus Torvalds { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, 46171da177e4SLinus Torvalds { NFS4ERR_NOTSUPP, ENOTSUPP }, 46181da177e4SLinus Torvalds { NFS4ERR_TOOSMALL, ETOOSMALL }, 46191da177e4SLinus Torvalds { NFS4ERR_SERVERFAULT, ESERVERFAULT }, 46201da177e4SLinus Torvalds { NFS4ERR_BADTYPE, EBADTYPE }, 46211da177e4SLinus Torvalds { NFS4ERR_LOCKED, EAGAIN }, 46221da177e4SLinus Torvalds { NFS4ERR_RESOURCE, EREMOTEIO }, 46231da177e4SLinus Torvalds { NFS4ERR_SYMLINK, ELOOP }, 46241da177e4SLinus Torvalds { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, 46251da177e4SLinus Torvalds { NFS4ERR_DEADLOCK, EDEADLK }, 46261da177e4SLinus Torvalds { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs 46271da177e4SLinus Torvalds * to be handled by a 46281da177e4SLinus Torvalds * middle-layer. 46291da177e4SLinus Torvalds */ 46301da177e4SLinus Torvalds { -1, EIO } 46311da177e4SLinus Torvalds }; 46321da177e4SLinus Torvalds 46331da177e4SLinus Torvalds /* 46341da177e4SLinus Torvalds * Convert an NFS error code to a local one. 46351da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 46361da177e4SLinus Torvalds */ 46371da177e4SLinus Torvalds static int 46380a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 46391da177e4SLinus Torvalds { 46401da177e4SLinus Torvalds int i; 46411da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 46421da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 46431da177e4SLinus Torvalds return nfs_errtbl[i].errno; 46441da177e4SLinus Torvalds } 46451da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 46461da177e4SLinus Torvalds /* The server is looney tunes. */ 46471da177e4SLinus Torvalds return ESERVERFAULT; 46481da177e4SLinus Torvalds } 46491da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 46501da177e4SLinus Torvalds * handle it. 46511da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 46521da177e4SLinus Torvalds * not conflict with native Linux error codes. 46531da177e4SLinus Torvalds */ 46541da177e4SLinus Torvalds return stat; 46551da177e4SLinus Torvalds } 46561da177e4SLinus Torvalds 46571da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 46581da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 46591da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 46601da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 46611da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 46622bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 46632bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 4664cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 4665cc0175c1SChuck Lever .p_name = #proc, \ 46661da177e4SLinus Torvalds } 46671da177e4SLinus Torvalds 46681da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 46691da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 46701da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 46711da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 46721da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 46731da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 46741da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 46751da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 46761da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 46771da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 46781da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 46791da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 46801da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 46811da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 46821da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 46831da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 46841da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 46851da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 46861da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 46871da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 46881da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 46891da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 46901da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 46911da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 46921da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 46931da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 46941da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 46951da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 46961da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 46971da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 46981da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 46991da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4700029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 470123ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 4702683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 47031da177e4SLinus Torvalds }; 47041da177e4SLinus Torvalds 47051da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 47061da177e4SLinus Torvalds .number = 4, 4707e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 47081da177e4SLinus Torvalds .procs = nfs4_procedures 47091da177e4SLinus Torvalds }; 47101da177e4SLinus Torvalds 47111da177e4SLinus Torvalds /* 47121da177e4SLinus Torvalds * Local variables: 47131da177e4SLinus Torvalds * c-basic-offset: 8 47141da177e4SLinus Torvalds * End: 47151da177e4SLinus Torvalds */ 4716