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: 711da177e4SLinus Torvalds * we currently use size 1 (u32) out of (NFS4_OPAQUE_LIMIT >> 2) 721da177e4SLinus Torvalds */ 731da177e4SLinus Torvalds #define owner_id_maxsz (1 + 1) 741da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 751da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 761da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 771da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 781da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 791da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 801da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 811da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 821da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 831da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 841da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 851da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 8696928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 8796928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 881da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 891da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 9096928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 9196928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 9296928206SJ. Bruce Fields 3 + 3 + 3 + 2 * nfs4_name_maxsz)) 9396928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 9496928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 9596928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 961da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 971da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 9856ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 9956ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1001da177e4SLinus Torvalds #define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2) 1011da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1021da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1031da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1041da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1051da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1061da177e4SLinus Torvalds 4 /*server->ip_addr*/ + \ 1071da177e4SLinus Torvalds 1 /*Netid*/ + \ 1081da177e4SLinus Torvalds 6 /*uaddr*/ + \ 1091da177e4SLinus Torvalds 6 + (NFS4_VERIFIER_SIZE >> 2)) 1101da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1111da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1121da177e4SLinus Torvalds 2 + \ 1131da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1141da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1151da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1161da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1171da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1181da177e4SLinus Torvalds (op_decode_hdr_maxsz) 1191da177e4SLinus Torvalds #define encode_lookup_maxsz (op_encode_hdr_maxsz + \ 1201da177e4SLinus Torvalds 1 + ((3 + NFS4_FHSIZE) >> 2)) 1211da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1221da177e4SLinus Torvalds nfs4_name_maxsz) 1231da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1241da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1251da177e4SLinus Torvalds #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) 1261da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 1271da177e4SLinus Torvalds nfs4_name_maxsz) 1281da177e4SLinus Torvalds #define decode_link_maxsz (op_decode_hdr_maxsz + 5) 1291da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 1301da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 13194a6d753SChuck Lever 1 + \ 13296928206SJ. Bruce Fields nfs4_fattr_maxsz) 1331da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 1341da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 1351da177e4SLinus Torvalds 2 + nfs4_name_maxsz + \ 13696928206SJ. Bruce Fields nfs4_fattr_maxsz) 1371da177e4SLinus Torvalds #define decode_create_maxsz (op_decode_hdr_maxsz + 8) 1381da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 1391da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 1401da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 1411da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 1421da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 1431da177e4SLinus Torvalds encode_putfh_maxsz + \ 1441da177e4SLinus Torvalds op_encode_hdr_maxsz + 7) 1451da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 1461da177e4SLinus Torvalds decode_putfh_maxsz + \ 1471da177e4SLinus Torvalds op_decode_hdr_maxsz + 2) 1481da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 1491da177e4SLinus Torvalds encode_putfh_maxsz + \ 1501da177e4SLinus Torvalds op_encode_hdr_maxsz) 1511da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 1521da177e4SLinus Torvalds decode_putfh_maxsz + \ 1531da177e4SLinus Torvalds op_decode_hdr_maxsz) 1541da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 1551da177e4SLinus Torvalds encode_putfh_maxsz + \ 1561da177e4SLinus Torvalds op_encode_hdr_maxsz + 9) 1571da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 1581da177e4SLinus Torvalds decode_putfh_maxsz + \ 1591da177e4SLinus Torvalds op_decode_hdr_maxsz + 2) 1601da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 1611da177e4SLinus Torvalds encode_putfh_maxsz + \ 1624f9838c7STrond Myklebust op_encode_hdr_maxsz + 8 + \ 1634f9838c7STrond Myklebust encode_getattr_maxsz) 1641da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 1651da177e4SLinus Torvalds decode_putfh_maxsz + \ 1664f9838c7STrond Myklebust op_decode_hdr_maxsz + 4 + \ 1674f9838c7STrond Myklebust decode_getattr_maxsz) 1681da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 1691da177e4SLinus Torvalds encode_putfh_maxsz + \ 1704f9838c7STrond Myklebust op_encode_hdr_maxsz + 3 + \ 1714f9838c7STrond Myklebust encode_getattr_maxsz) 1721da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 1731da177e4SLinus Torvalds decode_putfh_maxsz + \ 1744f9838c7STrond Myklebust op_decode_hdr_maxsz + 2 + \ 1754f9838c7STrond Myklebust decode_getattr_maxsz) 1761da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 1771da177e4SLinus Torvalds encode_putfh_maxsz + \ 1781da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 1791da177e4SLinus Torvalds 13 + 3 + 2 + 64 + \ 1801da177e4SLinus Torvalds encode_getattr_maxsz + \ 1811da177e4SLinus Torvalds encode_getfh_maxsz) 1821da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 1831da177e4SLinus Torvalds decode_putfh_maxsz + \ 1841da177e4SLinus Torvalds op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \ 1851da177e4SLinus Torvalds decode_getattr_maxsz + \ 1861da177e4SLinus Torvalds decode_getfh_maxsz) 1871da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 1881da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 1891da177e4SLinus Torvalds encode_putfh_maxsz + \ 1901da177e4SLinus Torvalds op_encode_hdr_maxsz + 5) 1911da177e4SLinus Torvalds #define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \ 1921da177e4SLinus Torvalds decode_putfh_maxsz + \ 1931da177e4SLinus Torvalds op_decode_hdr_maxsz + 4) 1941da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 1951da177e4SLinus Torvalds encode_putfh_maxsz + \ 1961da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 1971da177e4SLinus Torvalds 11) 1981da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 1991da177e4SLinus Torvalds decode_putfh_maxsz + \ 2001da177e4SLinus Torvalds op_decode_hdr_maxsz + \ 2011da177e4SLinus Torvalds 4 + 5 + 2 + 3) 2021da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 2031da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 2041da177e4SLinus Torvalds encode_putfh_maxsz + \ 205516a6af6STrond Myklebust op_encode_hdr_maxsz + 7 + \ 206516a6af6STrond Myklebust encode_getattr_maxsz) 2071da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 2081da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 2091da177e4SLinus Torvalds decode_putfh_maxsz + \ 210516a6af6STrond Myklebust op_decode_hdr_maxsz + 4 + \ 211516a6af6STrond Myklebust decode_getattr_maxsz) 2121da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 2131da177e4SLinus Torvalds encode_putfh_maxsz + \ 214516a6af6STrond Myklebust op_encode_hdr_maxsz + 5 + \ 215516a6af6STrond Myklebust encode_getattr_maxsz) 2161da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 2171da177e4SLinus Torvalds decode_putfh_maxsz + \ 218516a6af6STrond Myklebust op_decode_hdr_maxsz + 4 + \ 219516a6af6STrond Myklebust decode_getattr_maxsz) 2201da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 2211da177e4SLinus Torvalds encode_putfh_maxsz + \ 2221da177e4SLinus Torvalds op_encode_hdr_maxsz + 4 + \ 22396928206SJ. Bruce Fields nfs4_fattr_maxsz + \ 2241da177e4SLinus Torvalds encode_getattr_maxsz) 2251da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 2261da177e4SLinus Torvalds decode_putfh_maxsz + \ 2271da177e4SLinus Torvalds op_decode_hdr_maxsz + 3) 2281da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 2291da177e4SLinus Torvalds encode_putfh_maxsz + \ 2301da177e4SLinus Torvalds encode_fsinfo_maxsz) 2311da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 2321da177e4SLinus Torvalds decode_putfh_maxsz + \ 2331da177e4SLinus Torvalds decode_fsinfo_maxsz) 2341da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 2351da177e4SLinus Torvalds encode_renew_maxsz) 2361da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 2371da177e4SLinus Torvalds decode_renew_maxsz) 2381da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 2391da177e4SLinus Torvalds encode_setclientid_maxsz) 2401da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 2411da177e4SLinus Torvalds decode_setclientid_maxsz) 2421da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 2431da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 2441da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 2451da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 2461da177e4SLinus Torvalds encode_fsinfo_maxsz) 2471da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 2481da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 2491da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 2501da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 2511da177e4SLinus Torvalds decode_fsinfo_maxsz) 2521da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 2531da177e4SLinus Torvalds encode_putfh_maxsz + \ 2541da177e4SLinus Torvalds encode_getattr_maxsz + \ 2551da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 2561da177e4SLinus Torvalds 1 + 1 + 2 + 2 + \ 2571da177e4SLinus Torvalds 1 + 4 + 1 + 2 + \ 2581da177e4SLinus Torvalds owner_id_maxsz) 2591da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 2601da177e4SLinus Torvalds decode_putfh_maxsz + \ 2611da177e4SLinus Torvalds decode_getattr_maxsz + \ 2621da177e4SLinus Torvalds op_decode_hdr_maxsz + \ 2631da177e4SLinus Torvalds 2 + 2 + 1 + 2 + \ 2641da177e4SLinus Torvalds owner_id_maxsz) 2651da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 2661da177e4SLinus Torvalds encode_putfh_maxsz + \ 2671da177e4SLinus Torvalds encode_getattr_maxsz + \ 2681da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 2691da177e4SLinus Torvalds 1 + 2 + 2 + 2 + \ 2701da177e4SLinus Torvalds owner_id_maxsz) 2711da177e4SLinus Torvalds #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz) 2721da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 2731da177e4SLinus Torvalds encode_putfh_maxsz + \ 2741da177e4SLinus Torvalds encode_getattr_maxsz + \ 2751da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 2761da177e4SLinus Torvalds 1 + 1 + 4 + 2 + 2) 2771da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 2781da177e4SLinus Torvalds decode_putfh_maxsz + \ 2791da177e4SLinus Torvalds decode_getattr_maxsz + \ 2801da177e4SLinus Torvalds op_decode_hdr_maxsz + 4) 2811da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 2821da177e4SLinus Torvalds encode_putfh_maxsz + \ 2831da177e4SLinus Torvalds op_encode_hdr_maxsz + 1) 2841da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 2851da177e4SLinus Torvalds decode_putfh_maxsz + \ 2861da177e4SLinus Torvalds op_decode_hdr_maxsz + 2) 2871da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 2881da177e4SLinus Torvalds encode_putfh_maxsz + \ 2891da177e4SLinus Torvalds encode_getattr_maxsz) 2901da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 2911da177e4SLinus Torvalds decode_putfh_maxsz + \ 2921da177e4SLinus Torvalds decode_getattr_maxsz) 2931da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 2941da177e4SLinus Torvalds encode_putfh_maxsz + \ 2951da177e4SLinus Torvalds encode_lookup_maxsz + \ 2961da177e4SLinus Torvalds encode_getattr_maxsz + \ 2971da177e4SLinus Torvalds encode_getfh_maxsz) 2981da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 2991da177e4SLinus Torvalds decode_putfh_maxsz + \ 3001da177e4SLinus Torvalds op_decode_hdr_maxsz + \ 3011da177e4SLinus Torvalds decode_getattr_maxsz + \ 3021da177e4SLinus Torvalds decode_getfh_maxsz) 3031da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 3041da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 3051da177e4SLinus Torvalds encode_getattr_maxsz + \ 3061da177e4SLinus Torvalds encode_getfh_maxsz) 3071da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 3081da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 3091da177e4SLinus Torvalds decode_getattr_maxsz + \ 3101da177e4SLinus Torvalds decode_getfh_maxsz) 3111da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 3121da177e4SLinus Torvalds encode_putfh_maxsz + \ 31316e42959STrond Myklebust encode_remove_maxsz + \ 31416e42959STrond Myklebust encode_getattr_maxsz) 3151da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 3161da177e4SLinus Torvalds decode_putfh_maxsz + \ 31716e42959STrond Myklebust op_decode_hdr_maxsz + 5 + \ 31816e42959STrond Myklebust decode_getattr_maxsz) 3191da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 3201da177e4SLinus Torvalds encode_putfh_maxsz + \ 3211da177e4SLinus Torvalds encode_savefh_maxsz + \ 3221da177e4SLinus Torvalds encode_putfh_maxsz + \ 3236caf2c82STrond Myklebust encode_rename_maxsz + \ 3246caf2c82STrond Myklebust encode_getattr_maxsz + \ 3256caf2c82STrond Myklebust encode_restorefh_maxsz + \ 3266caf2c82STrond Myklebust encode_getattr_maxsz) 3271da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 3281da177e4SLinus Torvalds decode_putfh_maxsz + \ 3291da177e4SLinus Torvalds decode_savefh_maxsz + \ 3301da177e4SLinus Torvalds decode_putfh_maxsz + \ 3316caf2c82STrond Myklebust decode_rename_maxsz + \ 3326caf2c82STrond Myklebust decode_getattr_maxsz + \ 3336caf2c82STrond Myklebust decode_restorefh_maxsz + \ 3346caf2c82STrond Myklebust decode_getattr_maxsz) 3351da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 3361da177e4SLinus Torvalds encode_putfh_maxsz + \ 3371da177e4SLinus Torvalds encode_savefh_maxsz + \ 3381da177e4SLinus Torvalds encode_putfh_maxsz + \ 33991ba2eeeSTrond Myklebust encode_link_maxsz + \ 34091ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 34191ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 34291ba2eeeSTrond Myklebust decode_getattr_maxsz) 3431da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 3441da177e4SLinus Torvalds decode_putfh_maxsz + \ 3451da177e4SLinus Torvalds decode_savefh_maxsz + \ 3461da177e4SLinus Torvalds decode_putfh_maxsz + \ 34791ba2eeeSTrond Myklebust decode_link_maxsz + \ 34891ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 34991ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 35091ba2eeeSTrond Myklebust decode_getattr_maxsz) 3511da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 3521da177e4SLinus Torvalds encode_putfh_maxsz + \ 3531da177e4SLinus Torvalds encode_symlink_maxsz + \ 3541da177e4SLinus Torvalds encode_getattr_maxsz + \ 3551da177e4SLinus Torvalds encode_getfh_maxsz) 3561da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 3571da177e4SLinus Torvalds decode_putfh_maxsz + \ 3581da177e4SLinus Torvalds decode_symlink_maxsz + \ 3591da177e4SLinus Torvalds decode_getattr_maxsz + \ 3601da177e4SLinus Torvalds decode_getfh_maxsz) 3611da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 3621da177e4SLinus Torvalds encode_putfh_maxsz + \ 36356ae19f3STrond Myklebust encode_savefh_maxsz + \ 3641da177e4SLinus Torvalds encode_create_maxsz + \ 36556ae19f3STrond Myklebust encode_getfh_maxsz + \ 3661da177e4SLinus Torvalds encode_getattr_maxsz + \ 36756ae19f3STrond Myklebust encode_restorefh_maxsz + \ 36856ae19f3STrond Myklebust encode_getattr_maxsz) 3691da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 3701da177e4SLinus Torvalds decode_putfh_maxsz + \ 37156ae19f3STrond Myklebust decode_savefh_maxsz + \ 3721da177e4SLinus Torvalds decode_create_maxsz + \ 37356ae19f3STrond Myklebust decode_getfh_maxsz + \ 3741da177e4SLinus Torvalds decode_getattr_maxsz + \ 37556ae19f3STrond Myklebust decode_restorefh_maxsz + \ 37656ae19f3STrond Myklebust decode_getattr_maxsz) 3771da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 3781da177e4SLinus Torvalds encode_putfh_maxsz + \ 3791da177e4SLinus Torvalds encode_getattr_maxsz) 3801da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 3811da177e4SLinus Torvalds decode_putfh_maxsz + \ 3821da177e4SLinus Torvalds decode_getattr_maxsz) 3831da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 3841da177e4SLinus Torvalds encode_putfh_maxsz + \ 3851da177e4SLinus Torvalds encode_getattr_maxsz) 3861da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 3871da177e4SLinus Torvalds decode_putfh_maxsz + \ 3881da177e4SLinus Torvalds op_decode_hdr_maxsz + 12) 3891da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 3901da177e4SLinus Torvalds encode_getattr_maxsz) 3911da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 3921da177e4SLinus Torvalds decode_getattr_maxsz) 3931da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 3941da177e4SLinus Torvalds encode_putfh_maxsz + \ 395fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 396fa178f29STrond Myklebust encode_getattr_maxsz) 3971da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 398fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 399fa178f29STrond Myklebust decode_getattr_maxsz) 400029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 401029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 402029d105eSJ. Bruce Fields encode_getattr_maxsz) 403029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 404029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 405029d105eSJ. Bruce Fields op_decode_hdr_maxsz + \ 406029d105eSJ. Bruce Fields nfs4_fattr_bitmap_maxsz + 1) 40723ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 40823ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 40923ec6965SJ. Bruce Fields op_encode_hdr_maxsz + 4 + \ 41023ec6965SJ. Bruce Fields nfs4_fattr_bitmap_maxsz + 1) 41123ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 41223ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 41323ec6965SJ. Bruce Fields op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 414683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 415683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 416683b57b4STrond Myklebust encode_putfh_maxsz + \ 417683b57b4STrond Myklebust encode_getattr_maxsz) 418683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 419683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 420683b57b4STrond Myklebust decode_putfh_maxsz + \ 421683b57b4STrond Myklebust op_decode_hdr_maxsz + \ 422683b57b4STrond Myklebust nfs4_fattr_bitmap_maxsz) 4231da177e4SLinus Torvalds 4241da177e4SLinus Torvalds static struct { 4251da177e4SLinus Torvalds unsigned int mode; 4261da177e4SLinus Torvalds unsigned int nfs2type; 4271da177e4SLinus Torvalds } nfs_type2fmt[] = { 4281da177e4SLinus Torvalds { 0, NFNON }, 4291da177e4SLinus Torvalds { S_IFREG, NFREG }, 4301da177e4SLinus Torvalds { S_IFDIR, NFDIR }, 4311da177e4SLinus Torvalds { S_IFBLK, NFBLK }, 4321da177e4SLinus Torvalds { S_IFCHR, NFCHR }, 4331da177e4SLinus Torvalds { S_IFLNK, NFLNK }, 4341da177e4SLinus Torvalds { S_IFSOCK, NFSOCK }, 4351da177e4SLinus Torvalds { S_IFIFO, NFFIFO }, 4361da177e4SLinus Torvalds { 0, NFNON }, 4371da177e4SLinus Torvalds { 0, NFNON }, 4381da177e4SLinus Torvalds }; 4391da177e4SLinus Torvalds 4401da177e4SLinus Torvalds struct compound_hdr { 4411da177e4SLinus Torvalds int32_t status; 4421da177e4SLinus Torvalds uint32_t nops; 4431da177e4SLinus Torvalds uint32_t taglen; 4441da177e4SLinus Torvalds char * tag; 4451da177e4SLinus Torvalds }; 4461da177e4SLinus Torvalds 4471da177e4SLinus Torvalds /* 4481da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 4491da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 4501da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 4511da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 4521da177e4SLinus Torvalds * 4531da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 4541da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 4551da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 4561da177e4SLinus Torvalds */ 4571da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 4581da177e4SLinus Torvalds #define WRITE64(n) do { \ 4591da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 4601da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 4611da177e4SLinus Torvalds } while (0) 4621da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 4631da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 4641da177e4SLinus Torvalds } while (0) 4651da177e4SLinus Torvalds 4661da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 4671da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 4681da177e4SLinus Torvalds if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \ 4691da177e4SLinus Torvalds BUG_ON(!p); \ 4701da177e4SLinus Torvalds } while (0) 4711da177e4SLinus Torvalds 4721da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 4731da177e4SLinus Torvalds { 4748687b63aSAl Viro __be32 *p; 4751da177e4SLinus Torvalds 4761da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 4771da177e4SLinus Torvalds BUG_ON(p == NULL); 4781da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 4791da177e4SLinus Torvalds } 4801da177e4SLinus Torvalds 4811da177e4SLinus Torvalds static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 4821da177e4SLinus Torvalds { 4838687b63aSAl Viro __be32 *p; 4841da177e4SLinus Torvalds 4851da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 4861da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 4871da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 4881da177e4SLinus Torvalds WRITE32(hdr->taglen); 4891da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 4901da177e4SLinus Torvalds WRITE32(NFS4_MINOR_VERSION); 4911da177e4SLinus Torvalds WRITE32(hdr->nops); 4921da177e4SLinus Torvalds return 0; 4931da177e4SLinus Torvalds } 4941da177e4SLinus Torvalds 4951da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 4961da177e4SLinus Torvalds { 4978687b63aSAl Viro __be32 *p; 4981da177e4SLinus Torvalds 4991da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 5001da177e4SLinus Torvalds BUG_ON(p == NULL); 5011da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 5021da177e4SLinus Torvalds } 5031da177e4SLinus Torvalds 5041da177e4SLinus Torvalds static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 5051da177e4SLinus Torvalds { 5061da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 5071da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 5081da177e4SLinus Torvalds int owner_namelen = 0; 5091da177e4SLinus Torvalds int owner_grouplen = 0; 5108687b63aSAl Viro __be32 *p; 5118687b63aSAl Viro __be32 *q; 5121da177e4SLinus Torvalds int len; 5131da177e4SLinus Torvalds uint32_t bmval0 = 0; 5141da177e4SLinus Torvalds uint32_t bmval1 = 0; 5151da177e4SLinus Torvalds int status; 5161da177e4SLinus Torvalds 5171da177e4SLinus Torvalds /* 5181da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 5191da177e4SLinus Torvalds * In the worst-case, this would be 5201da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 5211da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 52223ec6965SJ. Bruce Fields * such as owner/group. 5231da177e4SLinus Torvalds */ 5241da177e4SLinus Torvalds len = 16; 5251da177e4SLinus Torvalds 5261da177e4SLinus Torvalds /* Sigh */ 5271da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 5281da177e4SLinus Torvalds len += 8; 5291da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 5301da177e4SLinus Torvalds len += 4; 5311da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 5327539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 5331da177e4SLinus Torvalds if (owner_namelen < 0) { 5341da177e4SLinus Torvalds printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n", 5351da177e4SLinus Torvalds iap->ia_uid); 5361da177e4SLinus Torvalds /* XXX */ 5371da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 5381da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 5391da177e4SLinus Torvalds /* goto out; */ 5401da177e4SLinus Torvalds } 5411da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 5421da177e4SLinus Torvalds } 5431da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 5447539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 5451da177e4SLinus Torvalds if (owner_grouplen < 0) { 5461da177e4SLinus Torvalds printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n", 5471da177e4SLinus Torvalds iap->ia_gid); 5481da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 5491da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 5501da177e4SLinus Torvalds /* goto out; */ 5511da177e4SLinus Torvalds } 5521da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 5531da177e4SLinus Torvalds } 5541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 5551da177e4SLinus Torvalds len += 16; 5561da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 5571da177e4SLinus Torvalds len += 4; 5581da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 5591da177e4SLinus Torvalds len += 16; 5601da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 5611da177e4SLinus Torvalds len += 4; 5621da177e4SLinus Torvalds RESERVE_SPACE(len); 5631da177e4SLinus Torvalds 5641da177e4SLinus Torvalds /* 5651da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 5661da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 5671da177e4SLinus Torvalds */ 5681da177e4SLinus Torvalds WRITE32(2); 5691da177e4SLinus Torvalds q = p; 5701da177e4SLinus Torvalds p += 3; 5711da177e4SLinus Torvalds 5721da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 5731da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 5741da177e4SLinus Torvalds WRITE64(iap->ia_size); 5751da177e4SLinus Torvalds } 5761da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 5771da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 578cf3fff54STrond Myklebust WRITE32(iap->ia_mode & S_IALLUGO); 5791da177e4SLinus Torvalds } 5801da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 5811da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 5821da177e4SLinus Torvalds WRITE32(owner_namelen); 5831da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 5841da177e4SLinus Torvalds } 5851da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 5861da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 5871da177e4SLinus Torvalds WRITE32(owner_grouplen); 5881da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 5891da177e4SLinus Torvalds } 5901da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 5911da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 5921da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 5931da177e4SLinus Torvalds WRITE32(0); 5941da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 5951da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 5961da177e4SLinus Torvalds } 5971da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 5981da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 5991da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 6001da177e4SLinus Torvalds } 6011da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 6021da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 6031da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 6041da177e4SLinus Torvalds WRITE32(0); 6051da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 6061da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 6071da177e4SLinus Torvalds } 6081da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 6091da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 6101da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 6111da177e4SLinus Torvalds } 6121da177e4SLinus Torvalds 6131da177e4SLinus Torvalds /* 6141da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 6151da177e4SLinus Torvalds */ 6161da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 6171da177e4SLinus Torvalds printk ("encode_attr: Attr length calculation error! %u != %Zu\n", 6181da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 6191da177e4SLinus Torvalds BUG(); 6201da177e4SLinus Torvalds } 6211da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 6221da177e4SLinus Torvalds *q++ = htonl(bmval0); 6231da177e4SLinus Torvalds *q++ = htonl(bmval1); 6241da177e4SLinus Torvalds *q++ = htonl(len); 6251da177e4SLinus Torvalds 6261da177e4SLinus Torvalds status = 0; 6271da177e4SLinus Torvalds /* out: */ 6281da177e4SLinus Torvalds return status; 6291da177e4SLinus Torvalds } 6301da177e4SLinus Torvalds 6311da177e4SLinus Torvalds static int encode_access(struct xdr_stream *xdr, u32 access) 6321da177e4SLinus Torvalds { 6338687b63aSAl Viro __be32 *p; 6341da177e4SLinus Torvalds 6351da177e4SLinus Torvalds RESERVE_SPACE(8); 6361da177e4SLinus Torvalds WRITE32(OP_ACCESS); 6371da177e4SLinus Torvalds WRITE32(access); 6381da177e4SLinus Torvalds 6391da177e4SLinus Torvalds return 0; 6401da177e4SLinus Torvalds } 6411da177e4SLinus Torvalds 6421da177e4SLinus Torvalds static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 6431da177e4SLinus Torvalds { 6448687b63aSAl Viro __be32 *p; 6451da177e4SLinus Torvalds 6469512135dSTrond Myklebust RESERVE_SPACE(8+sizeof(arg->stateid->data)); 6471da177e4SLinus Torvalds WRITE32(OP_CLOSE); 648cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 6499512135dSTrond Myklebust WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); 6501da177e4SLinus Torvalds 6511da177e4SLinus Torvalds return 0; 6521da177e4SLinus Torvalds } 6531da177e4SLinus Torvalds 6541da177e4SLinus Torvalds static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) 6551da177e4SLinus Torvalds { 6568687b63aSAl Viro __be32 *p; 6571da177e4SLinus Torvalds 6581da177e4SLinus Torvalds RESERVE_SPACE(16); 6591da177e4SLinus Torvalds WRITE32(OP_COMMIT); 6601da177e4SLinus Torvalds WRITE64(args->offset); 6611da177e4SLinus Torvalds WRITE32(args->count); 6621da177e4SLinus Torvalds 6631da177e4SLinus Torvalds return 0; 6641da177e4SLinus Torvalds } 6651da177e4SLinus Torvalds 6661da177e4SLinus Torvalds static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) 6671da177e4SLinus Torvalds { 6688687b63aSAl Viro __be32 *p; 6691da177e4SLinus Torvalds 6701da177e4SLinus Torvalds RESERVE_SPACE(8); 6711da177e4SLinus Torvalds WRITE32(OP_CREATE); 6721da177e4SLinus Torvalds WRITE32(create->ftype); 6731da177e4SLinus Torvalds 6741da177e4SLinus Torvalds switch (create->ftype) { 6751da177e4SLinus Torvalds case NF4LNK: 67694a6d753SChuck Lever RESERVE_SPACE(4); 67794a6d753SChuck Lever WRITE32(create->u.symlink.len); 67894a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 6791da177e4SLinus Torvalds break; 6801da177e4SLinus Torvalds 6811da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 6821da177e4SLinus Torvalds RESERVE_SPACE(8); 6831da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 6841da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 6851da177e4SLinus Torvalds break; 6861da177e4SLinus Torvalds 6871da177e4SLinus Torvalds default: 6881da177e4SLinus Torvalds break; 6891da177e4SLinus Torvalds } 6901da177e4SLinus Torvalds 6911da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 6921da177e4SLinus Torvalds WRITE32(create->name->len); 6931da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 6941da177e4SLinus Torvalds 6951da177e4SLinus Torvalds return encode_attrs(xdr, create->attrs, create->server); 6961da177e4SLinus Torvalds } 6971da177e4SLinus Torvalds 6981da177e4SLinus Torvalds static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) 6991da177e4SLinus Torvalds { 7008687b63aSAl Viro __be32 *p; 7011da177e4SLinus Torvalds 7021da177e4SLinus Torvalds RESERVE_SPACE(12); 7031da177e4SLinus Torvalds WRITE32(OP_GETATTR); 7041da177e4SLinus Torvalds WRITE32(1); 7051da177e4SLinus Torvalds WRITE32(bitmap); 7061da177e4SLinus Torvalds return 0; 7071da177e4SLinus Torvalds } 7081da177e4SLinus Torvalds 7091da177e4SLinus Torvalds static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) 7101da177e4SLinus Torvalds { 7118687b63aSAl Viro __be32 *p; 7121da177e4SLinus Torvalds 7131da177e4SLinus Torvalds RESERVE_SPACE(16); 7141da177e4SLinus Torvalds WRITE32(OP_GETATTR); 7151da177e4SLinus Torvalds WRITE32(2); 7161da177e4SLinus Torvalds WRITE32(bm0); 7171da177e4SLinus Torvalds WRITE32(bm1); 7181da177e4SLinus Torvalds return 0; 7191da177e4SLinus Torvalds } 7201da177e4SLinus Torvalds 7211da177e4SLinus Torvalds static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) 7221da177e4SLinus Torvalds { 7231da177e4SLinus Torvalds return encode_getattr_two(xdr, 7241da177e4SLinus Torvalds bitmask[0] & nfs4_fattr_bitmap[0], 7251da177e4SLinus Torvalds bitmask[1] & nfs4_fattr_bitmap[1]); 7261da177e4SLinus Torvalds } 7271da177e4SLinus Torvalds 7281da177e4SLinus Torvalds static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) 7291da177e4SLinus Torvalds { 7301da177e4SLinus Torvalds return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 7311da177e4SLinus Torvalds bitmask[1] & nfs4_fsinfo_bitmap[1]); 7321da177e4SLinus Torvalds } 7331da177e4SLinus Torvalds 734830b8e33SManoj Naik static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask) 735830b8e33SManoj Naik { 736830b8e33SManoj Naik return encode_getattr_two(xdr, 737830b8e33SManoj Naik bitmask[0] & nfs4_fs_locations_bitmap[0], 738830b8e33SManoj Naik bitmask[1] & nfs4_fs_locations_bitmap[1]); 739830b8e33SManoj Naik } 740830b8e33SManoj Naik 7411da177e4SLinus Torvalds static int encode_getfh(struct xdr_stream *xdr) 7421da177e4SLinus Torvalds { 7438687b63aSAl Viro __be32 *p; 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds RESERVE_SPACE(4); 7461da177e4SLinus Torvalds WRITE32(OP_GETFH); 7471da177e4SLinus Torvalds 7481da177e4SLinus Torvalds return 0; 7491da177e4SLinus Torvalds } 7501da177e4SLinus Torvalds 7511da177e4SLinus Torvalds static int encode_link(struct xdr_stream *xdr, const struct qstr *name) 7521da177e4SLinus Torvalds { 7538687b63aSAl Viro __be32 *p; 7541da177e4SLinus Torvalds 7551da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 7561da177e4SLinus Torvalds WRITE32(OP_LINK); 7571da177e4SLinus Torvalds WRITE32(name->len); 7581da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 7591da177e4SLinus Torvalds 7601da177e4SLinus Torvalds return 0; 7611da177e4SLinus Torvalds } 7621da177e4SLinus Torvalds 763911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 764911d1aafSTrond Myklebust { 765911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 766911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 767911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 768911d1aafSTrond Myklebust } 769911d1aafSTrond Myklebust 770911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 771911d1aafSTrond Myklebust { 772911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 773911d1aafSTrond Myklebust return ~(uint64_t)0; 774911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 775911d1aafSTrond Myklebust } 776911d1aafSTrond Myklebust 7771da177e4SLinus Torvalds /* 7781da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 7791da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 7801da177e4SLinus Torvalds */ 781911d1aafSTrond Myklebust static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args) 7821da177e4SLinus Torvalds { 7838687b63aSAl Viro __be32 *p; 7841da177e4SLinus Torvalds 7851da177e4SLinus Torvalds RESERVE_SPACE(32); 7861da177e4SLinus Torvalds WRITE32(OP_LOCK); 787911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, args->block)); 788911d1aafSTrond Myklebust WRITE32(args->reclaim); 789911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 790911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 791911d1aafSTrond Myklebust WRITE32(args->new_lock_owner); 792911d1aafSTrond Myklebust if (args->new_lock_owner){ 7931da177e4SLinus Torvalds RESERVE_SPACE(40); 794911d1aafSTrond Myklebust WRITE32(args->open_seqid->sequence->counter); 795911d1aafSTrond Myklebust WRITEMEM(args->open_stateid->data, sizeof(args->open_stateid->data)); 796911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 797911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 7981da177e4SLinus Torvalds WRITE32(4); 799911d1aafSTrond Myklebust WRITE32(args->lock_owner.id); 8001da177e4SLinus Torvalds } 8011da177e4SLinus Torvalds else { 8021da177e4SLinus Torvalds RESERVE_SPACE(20); 803911d1aafSTrond Myklebust WRITEMEM(args->lock_stateid->data, sizeof(args->lock_stateid->data)); 804911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 8051da177e4SLinus Torvalds } 8061da177e4SLinus Torvalds 8071da177e4SLinus Torvalds return 0; 8081da177e4SLinus Torvalds } 8091da177e4SLinus Torvalds 810911d1aafSTrond Myklebust static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args) 8111da177e4SLinus Torvalds { 8128687b63aSAl Viro __be32 *p; 8131da177e4SLinus Torvalds 8141da177e4SLinus Torvalds RESERVE_SPACE(40); 8151da177e4SLinus Torvalds WRITE32(OP_LOCKT); 816911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 817911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 818911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 819911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 8201da177e4SLinus Torvalds WRITE32(4); 821911d1aafSTrond Myklebust WRITE32(args->lock_owner.id); 8221da177e4SLinus Torvalds 8231da177e4SLinus Torvalds return 0; 8241da177e4SLinus Torvalds } 8251da177e4SLinus Torvalds 826911d1aafSTrond Myklebust static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args) 8271da177e4SLinus Torvalds { 8288687b63aSAl Viro __be32 *p; 8291da177e4SLinus Torvalds 8301da177e4SLinus Torvalds RESERVE_SPACE(44); 8311da177e4SLinus Torvalds WRITE32(OP_LOCKU); 832911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 833911d1aafSTrond Myklebust WRITE32(args->seqid->sequence->counter); 834911d1aafSTrond Myklebust WRITEMEM(args->stateid->data, sizeof(args->stateid->data)); 835911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 836911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 8371da177e4SLinus Torvalds 8381da177e4SLinus Torvalds return 0; 8391da177e4SLinus Torvalds } 8401da177e4SLinus Torvalds 8411da177e4SLinus Torvalds static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) 8421da177e4SLinus Torvalds { 8431da177e4SLinus Torvalds int len = name->len; 8448687b63aSAl Viro __be32 *p; 8451da177e4SLinus Torvalds 8461da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 8471da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 8481da177e4SLinus Torvalds WRITE32(len); 8491da177e4SLinus Torvalds WRITEMEM(name->name, len); 8501da177e4SLinus Torvalds 8511da177e4SLinus Torvalds return 0; 8521da177e4SLinus Torvalds } 8531da177e4SLinus Torvalds 8541da177e4SLinus Torvalds static void encode_share_access(struct xdr_stream *xdr, int open_flags) 8551da177e4SLinus Torvalds { 8568687b63aSAl Viro __be32 *p; 8571da177e4SLinus Torvalds 8581da177e4SLinus Torvalds RESERVE_SPACE(8); 8591da177e4SLinus Torvalds switch (open_flags & (FMODE_READ|FMODE_WRITE)) { 8601da177e4SLinus Torvalds case FMODE_READ: 8611da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 8621da177e4SLinus Torvalds break; 8631da177e4SLinus Torvalds case FMODE_WRITE: 8641da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 8651da177e4SLinus Torvalds break; 8661da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 8671da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 8681da177e4SLinus Torvalds break; 8691da177e4SLinus Torvalds default: 8701da177e4SLinus Torvalds BUG(); 8711da177e4SLinus Torvalds } 8721da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 8731da177e4SLinus Torvalds } 8741da177e4SLinus Torvalds 8751da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 8761da177e4SLinus Torvalds { 8778687b63aSAl Viro __be32 *p; 8781da177e4SLinus Torvalds /* 8791da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 8801da177e4SLinus Torvalds * owner 4 = 32 8811da177e4SLinus Torvalds */ 8821da177e4SLinus Torvalds RESERVE_SPACE(8); 8831da177e4SLinus Torvalds WRITE32(OP_OPEN); 884cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 8851da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 8861da177e4SLinus Torvalds RESERVE_SPACE(16); 8871da177e4SLinus Torvalds WRITE64(arg->clientid); 8881da177e4SLinus Torvalds WRITE32(4); 8891da177e4SLinus Torvalds WRITE32(arg->id); 8901da177e4SLinus Torvalds } 8911da177e4SLinus Torvalds 8921da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 8931da177e4SLinus Torvalds { 8948687b63aSAl Viro __be32 *p; 8951da177e4SLinus Torvalds 8961da177e4SLinus Torvalds RESERVE_SPACE(4); 8971da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 8981da177e4SLinus Torvalds case 0: 8991da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 9001da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 9011da177e4SLinus Torvalds break; 9021da177e4SLinus Torvalds default: 9031da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 9041da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 9051da177e4SLinus Torvalds } 9061da177e4SLinus Torvalds } 9071da177e4SLinus Torvalds 9081da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9091da177e4SLinus Torvalds { 9108687b63aSAl Viro __be32 *p; 9111da177e4SLinus Torvalds 9121da177e4SLinus Torvalds RESERVE_SPACE(4); 9131da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 9141da177e4SLinus Torvalds case 0: 9151da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 9161da177e4SLinus Torvalds break; 9171da177e4SLinus Torvalds default: 9181da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 9191da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 9201da177e4SLinus Torvalds encode_createmode(xdr, arg); 9211da177e4SLinus Torvalds } 9221da177e4SLinus Torvalds } 9231da177e4SLinus Torvalds 9241da177e4SLinus Torvalds static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) 9251da177e4SLinus Torvalds { 9268687b63aSAl Viro __be32 *p; 9271da177e4SLinus Torvalds 9281da177e4SLinus Torvalds RESERVE_SPACE(4); 9291da177e4SLinus Torvalds switch (delegation_type) { 9301da177e4SLinus Torvalds case 0: 9311da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 9321da177e4SLinus Torvalds break; 9331da177e4SLinus Torvalds case FMODE_READ: 9341da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 9351da177e4SLinus Torvalds break; 9361da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 9371da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 9381da177e4SLinus Torvalds break; 9391da177e4SLinus Torvalds default: 9401da177e4SLinus Torvalds BUG(); 9411da177e4SLinus Torvalds } 9421da177e4SLinus Torvalds } 9431da177e4SLinus Torvalds 9441da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 9451da177e4SLinus Torvalds { 9468687b63aSAl Viro __be32 *p; 9471da177e4SLinus Torvalds 9481da177e4SLinus Torvalds RESERVE_SPACE(4); 9491da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 9501da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 9511da177e4SLinus Torvalds } 9521da177e4SLinus Torvalds 9531da177e4SLinus Torvalds static inline void encode_claim_previous(struct xdr_stream *xdr, int type) 9541da177e4SLinus Torvalds { 9558687b63aSAl Viro __be32 *p; 9561da177e4SLinus Torvalds 9571da177e4SLinus Torvalds RESERVE_SPACE(4); 9581da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 9591da177e4SLinus Torvalds encode_delegation_type(xdr, type); 9601da177e4SLinus Torvalds } 9611da177e4SLinus Torvalds 9621da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 9631da177e4SLinus Torvalds { 9648687b63aSAl Viro __be32 *p; 9651da177e4SLinus Torvalds 9661da177e4SLinus Torvalds RESERVE_SPACE(4+sizeof(stateid->data)); 9671da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 9681da177e4SLinus Torvalds WRITEMEM(stateid->data, sizeof(stateid->data)); 9691da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 9701da177e4SLinus Torvalds } 9711da177e4SLinus Torvalds 9721da177e4SLinus Torvalds static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9731da177e4SLinus Torvalds { 9741da177e4SLinus Torvalds encode_openhdr(xdr, arg); 9751da177e4SLinus Torvalds encode_opentype(xdr, arg); 9761da177e4SLinus Torvalds switch (arg->claim) { 9771da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 9781da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 9791da177e4SLinus Torvalds break; 9801da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 9811da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 9821da177e4SLinus Torvalds break; 9831da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 9841da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 9851da177e4SLinus Torvalds break; 9861da177e4SLinus Torvalds default: 9871da177e4SLinus Torvalds BUG(); 9881da177e4SLinus Torvalds } 9891da177e4SLinus Torvalds return 0; 9901da177e4SLinus Torvalds } 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) 9931da177e4SLinus Torvalds { 9948687b63aSAl Viro __be32 *p; 9951da177e4SLinus Torvalds 996cdd4e68bSTrond Myklebust RESERVE_SPACE(8+sizeof(arg->stateid->data)); 9971da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 998cdd4e68bSTrond Myklebust WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); 999cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 10001da177e4SLinus Torvalds 10011da177e4SLinus Torvalds return 0; 10021da177e4SLinus Torvalds } 10031da177e4SLinus Torvalds 10041da177e4SLinus Torvalds static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 10051da177e4SLinus Torvalds { 10068687b63aSAl Viro __be32 *p; 10071da177e4SLinus Torvalds 10089512135dSTrond Myklebust RESERVE_SPACE(8+sizeof(arg->stateid->data)); 10091da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 10109512135dSTrond Myklebust WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); 1011cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 10121da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 10131da177e4SLinus Torvalds return 0; 10141da177e4SLinus Torvalds } 10151da177e4SLinus Torvalds 10161da177e4SLinus Torvalds static int 10171da177e4SLinus Torvalds encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) 10181da177e4SLinus Torvalds { 10191da177e4SLinus Torvalds int len = fh->size; 10208687b63aSAl Viro __be32 *p; 10211da177e4SLinus Torvalds 10221da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 10231da177e4SLinus Torvalds WRITE32(OP_PUTFH); 10241da177e4SLinus Torvalds WRITE32(len); 10251da177e4SLinus Torvalds WRITEMEM(fh->data, len); 10261da177e4SLinus Torvalds 10271da177e4SLinus Torvalds return 0; 10281da177e4SLinus Torvalds } 10291da177e4SLinus Torvalds 10301da177e4SLinus Torvalds static int encode_putrootfh(struct xdr_stream *xdr) 10311da177e4SLinus Torvalds { 10328687b63aSAl Viro __be32 *p; 10331da177e4SLinus Torvalds 10341da177e4SLinus Torvalds RESERVE_SPACE(4); 10351da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 10361da177e4SLinus Torvalds 10371da177e4SLinus Torvalds return 0; 10381da177e4SLinus Torvalds } 10391da177e4SLinus Torvalds 10401da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 10411da177e4SLinus Torvalds { 10421da177e4SLinus Torvalds nfs4_stateid stateid; 10438687b63aSAl Viro __be32 *p; 10441da177e4SLinus Torvalds 10451da177e4SLinus Torvalds RESERVE_SPACE(16); 10461da177e4SLinus Torvalds if (ctx->state != NULL) { 10471da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 10481da177e4SLinus Torvalds WRITEMEM(stateid.data, sizeof(stateid.data)); 10491da177e4SLinus Torvalds } else 10501da177e4SLinus Torvalds WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); 10511da177e4SLinus Torvalds } 10521da177e4SLinus Torvalds 10531da177e4SLinus Torvalds static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) 10541da177e4SLinus Torvalds { 10558687b63aSAl Viro __be32 *p; 10561da177e4SLinus Torvalds 10571da177e4SLinus Torvalds RESERVE_SPACE(4); 10581da177e4SLinus Torvalds WRITE32(OP_READ); 10591da177e4SLinus Torvalds 10601da177e4SLinus Torvalds encode_stateid(xdr, args->context); 10611da177e4SLinus Torvalds 10621da177e4SLinus Torvalds RESERVE_SPACE(12); 10631da177e4SLinus Torvalds WRITE64(args->offset); 10641da177e4SLinus Torvalds WRITE32(args->count); 10651da177e4SLinus Torvalds 10661da177e4SLinus Torvalds return 0; 10671da177e4SLinus Torvalds } 10681da177e4SLinus Torvalds 10691da177e4SLinus Torvalds static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) 10701da177e4SLinus Torvalds { 10711da177e4SLinus Torvalds struct rpc_auth *auth = req->rq_task->tk_auth; 107297d312d0SManoj Naik uint32_t attrs[2] = { 107397d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 107497d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 107597d312d0SManoj Naik }; 10761da177e4SLinus Torvalds int replen; 10778687b63aSAl Viro __be32 *p; 10781da177e4SLinus Torvalds 10791da177e4SLinus Torvalds RESERVE_SPACE(32+sizeof(nfs4_verifier)); 10801da177e4SLinus Torvalds WRITE32(OP_READDIR); 10811da177e4SLinus Torvalds WRITE64(readdir->cookie); 10821da177e4SLinus Torvalds WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data)); 10831da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 10841da177e4SLinus Torvalds WRITE32(readdir->count); 10851da177e4SLinus Torvalds WRITE32(2); 108697d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 108797d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 108897d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 108997d312d0SManoj Naik else 109097d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 109197d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 109297d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1093eadf4598STrond Myklebust dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", 1094eadf4598STrond Myklebust __FUNCTION__, 1095eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1096eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1097eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1098eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1099eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 11001da177e4SLinus Torvalds 11011da177e4SLinus Torvalds /* set up reply kvec 11021da177e4SLinus Torvalds * toplevel_status + taglen + rescount + OP_PUTFH + status 11031da177e4SLinus Torvalds * + OP_READDIR + status + verifer(2) = 9 11041da177e4SLinus Torvalds */ 11051da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; 11061da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, 11071da177e4SLinus Torvalds readdir->pgbase, readdir->count); 1108eadf4598STrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 1109eadf4598STrond Myklebust __FUNCTION__, replen, readdir->pages, 1110eadf4598STrond Myklebust readdir->pgbase, readdir->count); 11111da177e4SLinus Torvalds 11121da177e4SLinus Torvalds return 0; 11131da177e4SLinus Torvalds } 11141da177e4SLinus Torvalds 11151da177e4SLinus Torvalds static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) 11161da177e4SLinus Torvalds { 11171da177e4SLinus Torvalds struct rpc_auth *auth = req->rq_task->tk_auth; 11181da177e4SLinus Torvalds unsigned int replen; 11198687b63aSAl Viro __be32 *p; 11201da177e4SLinus Torvalds 11211da177e4SLinus Torvalds RESERVE_SPACE(4); 11221da177e4SLinus Torvalds WRITE32(OP_READLINK); 11231da177e4SLinus Torvalds 11241da177e4SLinus Torvalds /* set up reply kvec 11251da177e4SLinus Torvalds * toplevel_status + taglen + rescount + OP_PUTFH + status 11261da177e4SLinus Torvalds * + OP_READLINK + status + string length = 8 11271da177e4SLinus Torvalds */ 11281da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2; 11291da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, 11301da177e4SLinus Torvalds readlink->pgbase, readlink->pglen); 11311da177e4SLinus Torvalds 11321da177e4SLinus Torvalds return 0; 11331da177e4SLinus Torvalds } 11341da177e4SLinus Torvalds 11351da177e4SLinus Torvalds static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) 11361da177e4SLinus Torvalds { 11378687b63aSAl Viro __be32 *p; 11381da177e4SLinus Torvalds 11391da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 11401da177e4SLinus Torvalds WRITE32(OP_REMOVE); 11411da177e4SLinus Torvalds WRITE32(name->len); 11421da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 11431da177e4SLinus Torvalds 11441da177e4SLinus Torvalds return 0; 11451da177e4SLinus Torvalds } 11461da177e4SLinus Torvalds 11471da177e4SLinus Torvalds static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) 11481da177e4SLinus Torvalds { 11498687b63aSAl Viro __be32 *p; 11501da177e4SLinus Torvalds 11511da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 11521da177e4SLinus Torvalds WRITE32(OP_RENAME); 11531da177e4SLinus Torvalds WRITE32(oldname->len); 11541da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 11571da177e4SLinus Torvalds WRITE32(newname->len); 11581da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 11591da177e4SLinus Torvalds 11601da177e4SLinus Torvalds return 0; 11611da177e4SLinus Torvalds } 11621da177e4SLinus Torvalds 1163adfa6f98SDavid Howells static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid) 11641da177e4SLinus Torvalds { 11658687b63aSAl Viro __be32 *p; 11661da177e4SLinus Torvalds 11671da177e4SLinus Torvalds RESERVE_SPACE(12); 11681da177e4SLinus Torvalds WRITE32(OP_RENEW); 11691da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 11701da177e4SLinus Torvalds 11711da177e4SLinus Torvalds return 0; 11721da177e4SLinus Torvalds } 11731da177e4SLinus Torvalds 11741da177e4SLinus Torvalds static int 117556ae19f3STrond Myklebust encode_restorefh(struct xdr_stream *xdr) 117656ae19f3STrond Myklebust { 11778687b63aSAl Viro __be32 *p; 117856ae19f3STrond Myklebust 117956ae19f3STrond Myklebust RESERVE_SPACE(4); 118056ae19f3STrond Myklebust WRITE32(OP_RESTOREFH); 118156ae19f3STrond Myklebust 118256ae19f3STrond Myklebust return 0; 118356ae19f3STrond Myklebust } 118456ae19f3STrond Myklebust 118556ae19f3STrond Myklebust static int 118623ec6965SJ. Bruce Fields encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) 118723ec6965SJ. Bruce Fields { 11888687b63aSAl Viro __be32 *p; 118923ec6965SJ. Bruce Fields 119023ec6965SJ. Bruce Fields RESERVE_SPACE(4+sizeof(zero_stateid.data)); 119123ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 119223ec6965SJ. Bruce Fields WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); 119323ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 119423ec6965SJ. Bruce Fields WRITE32(1); 119523ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 119623ec6965SJ. Bruce Fields if (arg->acl_len % 4) 119723ec6965SJ. Bruce Fields return -EINVAL; 119823ec6965SJ. Bruce Fields RESERVE_SPACE(4); 119923ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 120023ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 120123ec6965SJ. Bruce Fields return 0; 120223ec6965SJ. Bruce Fields } 120323ec6965SJ. Bruce Fields 120423ec6965SJ. Bruce Fields static int 12051da177e4SLinus Torvalds encode_savefh(struct xdr_stream *xdr) 12061da177e4SLinus Torvalds { 12078687b63aSAl Viro __be32 *p; 12081da177e4SLinus Torvalds 12091da177e4SLinus Torvalds RESERVE_SPACE(4); 12101da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 12111da177e4SLinus Torvalds 12121da177e4SLinus Torvalds return 0; 12131da177e4SLinus Torvalds } 12141da177e4SLinus Torvalds 12151da177e4SLinus Torvalds static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) 12161da177e4SLinus Torvalds { 12171da177e4SLinus Torvalds int status; 12188687b63aSAl Viro __be32 *p; 12191da177e4SLinus Torvalds 12201da177e4SLinus Torvalds RESERVE_SPACE(4+sizeof(arg->stateid.data)); 12211da177e4SLinus Torvalds WRITE32(OP_SETATTR); 12221da177e4SLinus Torvalds WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data)); 12231da177e4SLinus Torvalds 12241da177e4SLinus Torvalds if ((status = encode_attrs(xdr, arg->iap, server))) 12251da177e4SLinus Torvalds return status; 12261da177e4SLinus Torvalds 12271da177e4SLinus Torvalds return 0; 12281da177e4SLinus Torvalds } 12291da177e4SLinus Torvalds 12301da177e4SLinus Torvalds static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) 12311da177e4SLinus Torvalds { 12328687b63aSAl Viro __be32 *p; 12331da177e4SLinus Torvalds 12341da177e4SLinus Torvalds RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data)); 12351da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 12361da177e4SLinus Torvalds WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data)); 12371da177e4SLinus Torvalds 12381da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 12391da177e4SLinus Torvalds RESERVE_SPACE(4); 12401da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 12411da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 12421da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 12431da177e4SLinus Torvalds RESERVE_SPACE(4); 12441da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 12451da177e4SLinus Torvalds 12461da177e4SLinus Torvalds return 0; 12471da177e4SLinus Torvalds } 12481da177e4SLinus Torvalds 1249adfa6f98SDavid Howells static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state) 12501da177e4SLinus Torvalds { 12518687b63aSAl Viro __be32 *p; 12521da177e4SLinus Torvalds 12531da177e4SLinus Torvalds RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data)); 12541da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 12551da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 12561da177e4SLinus Torvalds WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data)); 12571da177e4SLinus Torvalds 12581da177e4SLinus Torvalds return 0; 12591da177e4SLinus Torvalds } 12601da177e4SLinus Torvalds 12611da177e4SLinus Torvalds static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) 12621da177e4SLinus Torvalds { 12638687b63aSAl Viro __be32 *p; 12641da177e4SLinus Torvalds 12651da177e4SLinus Torvalds RESERVE_SPACE(4); 12661da177e4SLinus Torvalds WRITE32(OP_WRITE); 12671da177e4SLinus Torvalds 12681da177e4SLinus Torvalds encode_stateid(xdr, args->context); 12691da177e4SLinus Torvalds 12701da177e4SLinus Torvalds RESERVE_SPACE(16); 12711da177e4SLinus Torvalds WRITE64(args->offset); 12721da177e4SLinus Torvalds WRITE32(args->stable); 12731da177e4SLinus Torvalds WRITE32(args->count); 12741da177e4SLinus Torvalds 12751da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 12761da177e4SLinus Torvalds 12771da177e4SLinus Torvalds return 0; 12781da177e4SLinus Torvalds } 12791da177e4SLinus Torvalds 12801da177e4SLinus Torvalds static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) 12811da177e4SLinus Torvalds { 12828687b63aSAl Viro __be32 *p; 12831da177e4SLinus Torvalds 12841da177e4SLinus Torvalds RESERVE_SPACE(20); 12851da177e4SLinus Torvalds 12861da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 12871da177e4SLinus Torvalds WRITEMEM(stateid->data, sizeof(stateid->data)); 12881da177e4SLinus Torvalds return 0; 12891da177e4SLinus Torvalds 12901da177e4SLinus Torvalds } 12911da177e4SLinus Torvalds /* 12921da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 12931da177e4SLinus Torvalds */ 12941da177e4SLinus Torvalds 12951da177e4SLinus Torvalds /* 12961da177e4SLinus Torvalds * Encode an ACCESS request 12971da177e4SLinus Torvalds */ 12988687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 12991da177e4SLinus Torvalds { 13001da177e4SLinus Torvalds struct xdr_stream xdr; 13011da177e4SLinus Torvalds struct compound_hdr hdr = { 13021da177e4SLinus Torvalds .nops = 2, 13031da177e4SLinus Torvalds }; 13041da177e4SLinus Torvalds int status; 13051da177e4SLinus Torvalds 13061da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13071da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13081da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 13091da177e4SLinus Torvalds status = encode_access(&xdr, args->access); 13101da177e4SLinus Torvalds return status; 13111da177e4SLinus Torvalds } 13121da177e4SLinus Torvalds 13131da177e4SLinus Torvalds /* 13141da177e4SLinus Torvalds * Encode LOOKUP request 13151da177e4SLinus Torvalds */ 13168687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 13171da177e4SLinus Torvalds { 13181da177e4SLinus Torvalds struct xdr_stream xdr; 13191da177e4SLinus Torvalds struct compound_hdr hdr = { 13201da177e4SLinus Torvalds .nops = 4, 13211da177e4SLinus Torvalds }; 13221da177e4SLinus Torvalds int status; 13231da177e4SLinus Torvalds 13241da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13251da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13261da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 13271da177e4SLinus Torvalds goto out; 13281da177e4SLinus Torvalds if ((status = encode_lookup(&xdr, args->name)) != 0) 13291da177e4SLinus Torvalds goto out; 13301da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 13311da177e4SLinus Torvalds goto out; 13321da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 13331da177e4SLinus Torvalds out: 13341da177e4SLinus Torvalds return status; 13351da177e4SLinus Torvalds } 13361da177e4SLinus Torvalds 13371da177e4SLinus Torvalds /* 13381da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 13391da177e4SLinus Torvalds */ 13408687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 13411da177e4SLinus Torvalds { 13421da177e4SLinus Torvalds struct xdr_stream xdr; 13431da177e4SLinus Torvalds struct compound_hdr hdr = { 13441da177e4SLinus Torvalds .nops = 3, 13451da177e4SLinus Torvalds }; 13461da177e4SLinus Torvalds int status; 13471da177e4SLinus Torvalds 13481da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13491da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13501da177e4SLinus Torvalds if ((status = encode_putrootfh(&xdr)) != 0) 13511da177e4SLinus Torvalds goto out; 13521da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) == 0) 13531da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 13541da177e4SLinus Torvalds out: 13551da177e4SLinus Torvalds return status; 13561da177e4SLinus Torvalds } 13571da177e4SLinus Torvalds 13581da177e4SLinus Torvalds /* 13591da177e4SLinus Torvalds * Encode REMOVE request 13601da177e4SLinus Torvalds */ 13618687b63aSAl Viro static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs4_remove_arg *args) 13621da177e4SLinus Torvalds { 13631da177e4SLinus Torvalds struct xdr_stream xdr; 13641da177e4SLinus Torvalds struct compound_hdr hdr = { 136516e42959STrond Myklebust .nops = 3, 13661da177e4SLinus Torvalds }; 13671da177e4SLinus Torvalds int status; 13681da177e4SLinus Torvalds 13691da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13701da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 137116e42959STrond Myklebust if ((status = encode_putfh(&xdr, args->fh)) != 0) 137216e42959STrond Myklebust goto out; 137316e42959STrond Myklebust if ((status = encode_remove(&xdr, args->name)) != 0) 137416e42959STrond Myklebust goto out; 137516e42959STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 137616e42959STrond Myklebust out: 13771da177e4SLinus Torvalds return status; 13781da177e4SLinus Torvalds } 13791da177e4SLinus Torvalds 13801da177e4SLinus Torvalds /* 13811da177e4SLinus Torvalds * Encode RENAME request 13821da177e4SLinus Torvalds */ 13838687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 13841da177e4SLinus Torvalds { 13851da177e4SLinus Torvalds struct xdr_stream xdr; 13861da177e4SLinus Torvalds struct compound_hdr hdr = { 13876caf2c82STrond Myklebust .nops = 7, 13881da177e4SLinus Torvalds }; 13891da177e4SLinus Torvalds int status; 13901da177e4SLinus Torvalds 13911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13921da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13931da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->old_dir)) != 0) 13941da177e4SLinus Torvalds goto out; 13951da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 13961da177e4SLinus Torvalds goto out; 13971da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->new_dir)) != 0) 13981da177e4SLinus Torvalds goto out; 13996caf2c82STrond Myklebust if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) 14006caf2c82STrond Myklebust goto out; 14016caf2c82STrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 14026caf2c82STrond Myklebust goto out; 14036caf2c82STrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 14046caf2c82STrond Myklebust goto out; 14056caf2c82STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 14061da177e4SLinus Torvalds out: 14071da177e4SLinus Torvalds return status; 14081da177e4SLinus Torvalds } 14091da177e4SLinus Torvalds 14101da177e4SLinus Torvalds /* 14111da177e4SLinus Torvalds * Encode LINK request 14121da177e4SLinus Torvalds */ 14138687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 14141da177e4SLinus Torvalds { 14151da177e4SLinus Torvalds struct xdr_stream xdr; 14161da177e4SLinus Torvalds struct compound_hdr hdr = { 141791ba2eeeSTrond Myklebust .nops = 7, 14181da177e4SLinus Torvalds }; 14191da177e4SLinus Torvalds int status; 14201da177e4SLinus Torvalds 14211da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14221da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14231da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) != 0) 14241da177e4SLinus Torvalds goto out; 14251da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 14261da177e4SLinus Torvalds goto out; 14271da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 14281da177e4SLinus Torvalds goto out; 142991ba2eeeSTrond Myklebust if ((status = encode_link(&xdr, args->name)) != 0) 143091ba2eeeSTrond Myklebust goto out; 143191ba2eeeSTrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 143291ba2eeeSTrond Myklebust goto out; 143391ba2eeeSTrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 143491ba2eeeSTrond Myklebust goto out; 143591ba2eeeSTrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 14361da177e4SLinus Torvalds out: 14371da177e4SLinus Torvalds return status; 14381da177e4SLinus Torvalds } 14391da177e4SLinus Torvalds 14401da177e4SLinus Torvalds /* 14411da177e4SLinus Torvalds * Encode CREATE request 14421da177e4SLinus Torvalds */ 14438687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 14441da177e4SLinus Torvalds { 14451da177e4SLinus Torvalds struct xdr_stream xdr; 14461da177e4SLinus Torvalds struct compound_hdr hdr = { 144756ae19f3STrond Myklebust .nops = 7, 14481da177e4SLinus Torvalds }; 14491da177e4SLinus Torvalds int status; 14501da177e4SLinus Torvalds 14511da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14521da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14531da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 14541da177e4SLinus Torvalds goto out; 145556ae19f3STrond Myklebust if ((status = encode_savefh(&xdr)) != 0) 145656ae19f3STrond Myklebust goto out; 14571da177e4SLinus Torvalds if ((status = encode_create(&xdr, args)) != 0) 14581da177e4SLinus Torvalds goto out; 14591da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 14601da177e4SLinus Torvalds goto out; 146156ae19f3STrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 146256ae19f3STrond Myklebust goto out; 146356ae19f3STrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 146456ae19f3STrond Myklebust goto out; 14651da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14661da177e4SLinus Torvalds out: 14671da177e4SLinus Torvalds return status; 14681da177e4SLinus Torvalds } 14691da177e4SLinus Torvalds 14701da177e4SLinus Torvalds /* 14711da177e4SLinus Torvalds * Encode SYMLINK request 14721da177e4SLinus Torvalds */ 14738687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 14741da177e4SLinus Torvalds { 14751da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 14761da177e4SLinus Torvalds } 14771da177e4SLinus Torvalds 14781da177e4SLinus Torvalds /* 14791da177e4SLinus Torvalds * Encode GETATTR request 14801da177e4SLinus Torvalds */ 14818687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 14821da177e4SLinus Torvalds { 14831da177e4SLinus Torvalds struct xdr_stream xdr; 14841da177e4SLinus Torvalds struct compound_hdr hdr = { 14851da177e4SLinus Torvalds .nops = 2, 14861da177e4SLinus Torvalds }; 14871da177e4SLinus Torvalds int status; 14881da177e4SLinus Torvalds 14891da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14901da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14911da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 14921da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14931da177e4SLinus Torvalds return status; 14941da177e4SLinus Torvalds } 14951da177e4SLinus Torvalds 14961da177e4SLinus Torvalds /* 14971da177e4SLinus Torvalds * Encode a CLOSE request 14981da177e4SLinus Torvalds */ 14998687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 15001da177e4SLinus Torvalds { 15011da177e4SLinus Torvalds struct xdr_stream xdr; 15021da177e4SLinus Torvalds struct compound_hdr hdr = { 1503516a6af6STrond Myklebust .nops = 3, 15041da177e4SLinus Torvalds }; 15051da177e4SLinus Torvalds int status; 15061da177e4SLinus Torvalds 15071da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15081da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15091da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15101da177e4SLinus Torvalds if(status) 15111da177e4SLinus Torvalds goto out; 15121da177e4SLinus Torvalds status = encode_close(&xdr, args); 1513516a6af6STrond Myklebust if (status != 0) 1514516a6af6STrond Myklebust goto out; 1515516a6af6STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 15161da177e4SLinus Torvalds out: 15171da177e4SLinus Torvalds return status; 15181da177e4SLinus Torvalds } 15191da177e4SLinus Torvalds 15201da177e4SLinus Torvalds /* 15211da177e4SLinus Torvalds * Encode an OPEN request 15221da177e4SLinus Torvalds */ 15238687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 15241da177e4SLinus Torvalds { 15251da177e4SLinus Torvalds struct xdr_stream xdr; 15261da177e4SLinus Torvalds struct compound_hdr hdr = { 152756ae19f3STrond Myklebust .nops = 7, 15281da177e4SLinus Torvalds }; 15291da177e4SLinus Torvalds int status; 15301da177e4SLinus Torvalds 15311da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15321da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15331da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15341da177e4SLinus Torvalds if (status) 15351da177e4SLinus Torvalds goto out; 153656ae19f3STrond Myklebust status = encode_savefh(&xdr); 153756ae19f3STrond Myklebust if (status) 153856ae19f3STrond Myklebust goto out; 15391da177e4SLinus Torvalds status = encode_open(&xdr, args); 15401da177e4SLinus Torvalds if (status) 15411da177e4SLinus Torvalds goto out; 15421da177e4SLinus Torvalds status = encode_getfh(&xdr); 15431da177e4SLinus Torvalds if (status) 15441da177e4SLinus Torvalds goto out; 15451da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 154656ae19f3STrond Myklebust if (status) 154756ae19f3STrond Myklebust goto out; 154856ae19f3STrond Myklebust status = encode_restorefh(&xdr); 154956ae19f3STrond Myklebust if (status) 155056ae19f3STrond Myklebust goto out; 155156ae19f3STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 15521da177e4SLinus Torvalds out: 15531da177e4SLinus Torvalds return status; 15541da177e4SLinus Torvalds } 15551da177e4SLinus Torvalds 15561da177e4SLinus Torvalds /* 15571da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 15581da177e4SLinus Torvalds */ 15598687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 15601da177e4SLinus Torvalds { 15611da177e4SLinus Torvalds struct xdr_stream xdr; 15621da177e4SLinus Torvalds struct compound_hdr hdr = { 15631da177e4SLinus Torvalds .nops = 2, 15641da177e4SLinus Torvalds }; 15651da177e4SLinus Torvalds int status; 15661da177e4SLinus Torvalds 15671da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15681da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15691da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15701da177e4SLinus Torvalds if(status) 15711da177e4SLinus Torvalds goto out; 15721da177e4SLinus Torvalds status = encode_open_confirm(&xdr, args); 15731da177e4SLinus Torvalds out: 15741da177e4SLinus Torvalds return status; 15751da177e4SLinus Torvalds } 15761da177e4SLinus Torvalds 15771da177e4SLinus Torvalds /* 15781da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 15791da177e4SLinus Torvalds */ 15808687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 15811da177e4SLinus Torvalds { 15821da177e4SLinus Torvalds struct xdr_stream xdr; 15831da177e4SLinus Torvalds struct compound_hdr hdr = { 1584864472e9STrond Myklebust .nops = 3, 15851da177e4SLinus Torvalds }; 15861da177e4SLinus Torvalds int status; 15871da177e4SLinus Torvalds 15881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15891da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15901da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15911da177e4SLinus Torvalds if (status) 15921da177e4SLinus Torvalds goto out; 15931da177e4SLinus Torvalds status = encode_open(&xdr, args); 1594864472e9STrond Myklebust if (status) 1595864472e9STrond Myklebust goto out; 1596864472e9STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 15971da177e4SLinus Torvalds out: 15981da177e4SLinus Torvalds return status; 15991da177e4SLinus Torvalds } 16001da177e4SLinus Torvalds 16011da177e4SLinus Torvalds /* 16021da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 16031da177e4SLinus Torvalds */ 16048687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 16051da177e4SLinus Torvalds { 16061da177e4SLinus Torvalds struct xdr_stream xdr; 16071da177e4SLinus Torvalds struct compound_hdr hdr = { 1608516a6af6STrond Myklebust .nops = 3, 16091da177e4SLinus Torvalds }; 16101da177e4SLinus Torvalds int status; 16111da177e4SLinus Torvalds 16121da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16131da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16141da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16151da177e4SLinus Torvalds if (status) 16161da177e4SLinus Torvalds goto out; 16171da177e4SLinus Torvalds status = encode_open_downgrade(&xdr, args); 1618516a6af6STrond Myklebust if (status != 0) 1619516a6af6STrond Myklebust goto out; 1620516a6af6STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 16211da177e4SLinus Torvalds out: 16221da177e4SLinus Torvalds return status; 16231da177e4SLinus Torvalds } 16241da177e4SLinus Torvalds 16251da177e4SLinus Torvalds /* 16261da177e4SLinus Torvalds * Encode a LOCK request 16271da177e4SLinus Torvalds */ 16288687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 16291da177e4SLinus Torvalds { 16301da177e4SLinus Torvalds struct xdr_stream xdr; 16311da177e4SLinus Torvalds struct compound_hdr hdr = { 16321da177e4SLinus Torvalds .nops = 2, 16331da177e4SLinus Torvalds }; 16341da177e4SLinus Torvalds int status; 16351da177e4SLinus Torvalds 16361da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16371da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16381da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16391da177e4SLinus Torvalds if(status) 16401da177e4SLinus Torvalds goto out; 16411da177e4SLinus Torvalds status = encode_lock(&xdr, args); 16421da177e4SLinus Torvalds out: 16431da177e4SLinus Torvalds return status; 16441da177e4SLinus Torvalds } 16451da177e4SLinus Torvalds 16461da177e4SLinus Torvalds /* 16471da177e4SLinus Torvalds * Encode a LOCKT request 16481da177e4SLinus Torvalds */ 16498687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 16501da177e4SLinus Torvalds { 16511da177e4SLinus Torvalds struct xdr_stream xdr; 16521da177e4SLinus Torvalds struct compound_hdr hdr = { 16531da177e4SLinus Torvalds .nops = 2, 16541da177e4SLinus Torvalds }; 16551da177e4SLinus Torvalds int status; 16561da177e4SLinus Torvalds 16571da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16581da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16591da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16601da177e4SLinus Torvalds if(status) 16611da177e4SLinus Torvalds goto out; 16621da177e4SLinus Torvalds status = encode_lockt(&xdr, args); 16631da177e4SLinus Torvalds out: 16641da177e4SLinus Torvalds return status; 16651da177e4SLinus Torvalds } 16661da177e4SLinus Torvalds 16671da177e4SLinus Torvalds /* 16681da177e4SLinus Torvalds * Encode a LOCKU request 16691da177e4SLinus Torvalds */ 16708687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 16711da177e4SLinus Torvalds { 16721da177e4SLinus Torvalds struct xdr_stream xdr; 16731da177e4SLinus Torvalds struct compound_hdr hdr = { 16741da177e4SLinus Torvalds .nops = 2, 16751da177e4SLinus Torvalds }; 16761da177e4SLinus Torvalds int status; 16771da177e4SLinus Torvalds 16781da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16791da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16801da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16811da177e4SLinus Torvalds if(status) 16821da177e4SLinus Torvalds goto out; 16831da177e4SLinus Torvalds status = encode_locku(&xdr, args); 16841da177e4SLinus Torvalds out: 16851da177e4SLinus Torvalds return status; 16861da177e4SLinus Torvalds } 16871da177e4SLinus Torvalds 16881da177e4SLinus Torvalds /* 16891da177e4SLinus Torvalds * Encode a READLINK request 16901da177e4SLinus Torvalds */ 16918687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 16921da177e4SLinus Torvalds { 16931da177e4SLinus Torvalds struct xdr_stream xdr; 16941da177e4SLinus Torvalds struct compound_hdr hdr = { 16951da177e4SLinus Torvalds .nops = 2, 16961da177e4SLinus Torvalds }; 16971da177e4SLinus Torvalds int status; 16981da177e4SLinus Torvalds 16991da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17001da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17011da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17021da177e4SLinus Torvalds if(status) 17031da177e4SLinus Torvalds goto out; 17041da177e4SLinus Torvalds status = encode_readlink(&xdr, args, req); 17051da177e4SLinus Torvalds out: 17061da177e4SLinus Torvalds return status; 17071da177e4SLinus Torvalds } 17081da177e4SLinus Torvalds 17091da177e4SLinus Torvalds /* 17101da177e4SLinus Torvalds * Encode a READDIR request 17111da177e4SLinus Torvalds */ 17128687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 17131da177e4SLinus Torvalds { 17141da177e4SLinus Torvalds struct xdr_stream xdr; 17151da177e4SLinus Torvalds struct compound_hdr hdr = { 17161da177e4SLinus Torvalds .nops = 2, 17171da177e4SLinus Torvalds }; 17181da177e4SLinus Torvalds int status; 17191da177e4SLinus Torvalds 17201da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17211da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17221da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17231da177e4SLinus Torvalds if(status) 17241da177e4SLinus Torvalds goto out; 17251da177e4SLinus Torvalds status = encode_readdir(&xdr, args, req); 17261da177e4SLinus Torvalds out: 17271da177e4SLinus Torvalds return status; 17281da177e4SLinus Torvalds } 17291da177e4SLinus Torvalds 17301da177e4SLinus Torvalds /* 17311da177e4SLinus Torvalds * Encode a READ request 17321da177e4SLinus Torvalds */ 17338687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 17341da177e4SLinus Torvalds { 17351da177e4SLinus Torvalds struct rpc_auth *auth = req->rq_task->tk_auth; 17361da177e4SLinus Torvalds struct xdr_stream xdr; 17371da177e4SLinus Torvalds struct compound_hdr hdr = { 17381da177e4SLinus Torvalds .nops = 2, 17391da177e4SLinus Torvalds }; 17401da177e4SLinus Torvalds int replen, status; 17411da177e4SLinus Torvalds 17421da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17431da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17441da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17451da177e4SLinus Torvalds if (status) 17461da177e4SLinus Torvalds goto out; 17471da177e4SLinus Torvalds status = encode_read(&xdr, args); 17481da177e4SLinus Torvalds if (status) 17491da177e4SLinus Torvalds goto out; 17501da177e4SLinus Torvalds 17511da177e4SLinus Torvalds /* set up reply kvec 17521da177e4SLinus Torvalds * toplevel status + taglen=0 + rescount + OP_PUTFH + status 17531da177e4SLinus Torvalds * + OP_READ + status + eof + datalen = 9 17541da177e4SLinus Torvalds */ 17551da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; 17561da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, 17571da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 17581da177e4SLinus Torvalds out: 17591da177e4SLinus Torvalds return status; 17601da177e4SLinus Torvalds } 17611da177e4SLinus Torvalds 17621da177e4SLinus Torvalds /* 17631da177e4SLinus Torvalds * Encode an SETATTR request 17641da177e4SLinus Torvalds */ 17658687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 17661da177e4SLinus Torvalds 17671da177e4SLinus Torvalds { 17681da177e4SLinus Torvalds struct xdr_stream xdr; 17691da177e4SLinus Torvalds struct compound_hdr hdr = { 17701da177e4SLinus Torvalds .nops = 3, 17711da177e4SLinus Torvalds }; 17721da177e4SLinus Torvalds int status; 17731da177e4SLinus Torvalds 17741da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17751da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17761da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17771da177e4SLinus Torvalds if(status) 17781da177e4SLinus Torvalds goto out; 17791da177e4SLinus Torvalds status = encode_setattr(&xdr, args, args->server); 17801da177e4SLinus Torvalds if(status) 17811da177e4SLinus Torvalds goto out; 17821da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 17831da177e4SLinus Torvalds out: 17841da177e4SLinus Torvalds return status; 17851da177e4SLinus Torvalds } 17861da177e4SLinus Torvalds 17871da177e4SLinus Torvalds /* 1788029d105eSJ. Bruce Fields * Encode a GETACL request 1789029d105eSJ. Bruce Fields */ 1790029d105eSJ. Bruce Fields static int 17918687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 1792029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 1793029d105eSJ. Bruce Fields { 1794029d105eSJ. Bruce Fields struct xdr_stream xdr; 1795029d105eSJ. Bruce Fields struct rpc_auth *auth = req->rq_task->tk_auth; 1796029d105eSJ. Bruce Fields struct compound_hdr hdr = { 1797029d105eSJ. Bruce Fields .nops = 2, 1798029d105eSJ. Bruce Fields }; 1799029d105eSJ. Bruce Fields int replen, status; 1800029d105eSJ. Bruce Fields 1801029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1802029d105eSJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 1803029d105eSJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 1804029d105eSJ. Bruce Fields if (status) 1805029d105eSJ. Bruce Fields goto out; 1806029d105eSJ. Bruce Fields status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); 1807029d105eSJ. Bruce Fields /* set up reply buffer: */ 1808029d105eSJ. Bruce Fields replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; 1809029d105eSJ. Bruce Fields xdr_inline_pages(&req->rq_rcv_buf, replen, 1810029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 1811029d105eSJ. Bruce Fields out: 1812029d105eSJ. Bruce Fields return status; 1813029d105eSJ. Bruce Fields } 1814029d105eSJ. Bruce Fields 1815029d105eSJ. Bruce Fields /* 18161da177e4SLinus Torvalds * Encode a WRITE request 18171da177e4SLinus Torvalds */ 18188687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 18191da177e4SLinus Torvalds { 18201da177e4SLinus Torvalds struct xdr_stream xdr; 18211da177e4SLinus Torvalds struct compound_hdr hdr = { 18224f9838c7STrond Myklebust .nops = 3, 18231da177e4SLinus Torvalds }; 18241da177e4SLinus Torvalds int status; 18251da177e4SLinus Torvalds 18261da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18271da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18281da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18291da177e4SLinus Torvalds if (status) 18301da177e4SLinus Torvalds goto out; 18311da177e4SLinus Torvalds status = encode_write(&xdr, args); 18324f9838c7STrond Myklebust if (status) 18334f9838c7STrond Myklebust goto out; 18344f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 18351da177e4SLinus Torvalds out: 18361da177e4SLinus Torvalds return status; 18371da177e4SLinus Torvalds } 18381da177e4SLinus Torvalds 18391da177e4SLinus Torvalds /* 18401da177e4SLinus Torvalds * a COMMIT request 18411da177e4SLinus Torvalds */ 18428687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 18431da177e4SLinus Torvalds { 18441da177e4SLinus Torvalds struct xdr_stream xdr; 18451da177e4SLinus Torvalds struct compound_hdr hdr = { 18464f9838c7STrond Myklebust .nops = 3, 18471da177e4SLinus Torvalds }; 18481da177e4SLinus Torvalds int status; 18491da177e4SLinus Torvalds 18501da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18511da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18521da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18531da177e4SLinus Torvalds if (status) 18541da177e4SLinus Torvalds goto out; 18551da177e4SLinus Torvalds status = encode_commit(&xdr, args); 18564f9838c7STrond Myklebust if (status) 18574f9838c7STrond Myklebust goto out; 18584f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 18591da177e4SLinus Torvalds out: 18601da177e4SLinus Torvalds return status; 18611da177e4SLinus Torvalds } 18621da177e4SLinus Torvalds 18631da177e4SLinus Torvalds /* 18641da177e4SLinus Torvalds * FSINFO request 18651da177e4SLinus Torvalds */ 18668687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 18671da177e4SLinus Torvalds { 18681da177e4SLinus Torvalds struct xdr_stream xdr; 18691da177e4SLinus Torvalds struct compound_hdr hdr = { 18701da177e4SLinus Torvalds .nops = 2, 18711da177e4SLinus Torvalds }; 18721da177e4SLinus Torvalds int status; 18731da177e4SLinus Torvalds 18741da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18751da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18761da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18771da177e4SLinus Torvalds if (!status) 18781da177e4SLinus Torvalds status = encode_fsinfo(&xdr, args->bitmask); 18791da177e4SLinus Torvalds return status; 18801da177e4SLinus Torvalds } 18811da177e4SLinus Torvalds 18821da177e4SLinus Torvalds /* 18831da177e4SLinus Torvalds * a PATHCONF request 18841da177e4SLinus Torvalds */ 18858687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 18861da177e4SLinus Torvalds { 18871da177e4SLinus Torvalds struct xdr_stream xdr; 18881da177e4SLinus Torvalds struct compound_hdr hdr = { 18891da177e4SLinus Torvalds .nops = 2, 18901da177e4SLinus Torvalds }; 18911da177e4SLinus Torvalds int status; 18921da177e4SLinus Torvalds 18931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18941da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18951da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18961da177e4SLinus Torvalds if (!status) 18971da177e4SLinus Torvalds status = encode_getattr_one(&xdr, 18981da177e4SLinus Torvalds args->bitmask[0] & nfs4_pathconf_bitmap[0]); 18991da177e4SLinus Torvalds return status; 19001da177e4SLinus Torvalds } 19011da177e4SLinus Torvalds 19021da177e4SLinus Torvalds /* 19031da177e4SLinus Torvalds * a STATFS request 19041da177e4SLinus Torvalds */ 19058687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 19061da177e4SLinus Torvalds { 19071da177e4SLinus Torvalds struct xdr_stream xdr; 19081da177e4SLinus Torvalds struct compound_hdr hdr = { 19091da177e4SLinus Torvalds .nops = 2, 19101da177e4SLinus Torvalds }; 19111da177e4SLinus Torvalds int status; 19121da177e4SLinus Torvalds 19131da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19141da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19151da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19161da177e4SLinus Torvalds if (status == 0) 19171da177e4SLinus Torvalds status = encode_getattr_two(&xdr, 19181da177e4SLinus Torvalds args->bitmask[0] & nfs4_statfs_bitmap[0], 19191da177e4SLinus Torvalds args->bitmask[1] & nfs4_statfs_bitmap[1]); 19201da177e4SLinus Torvalds return status; 19211da177e4SLinus Torvalds } 19221da177e4SLinus Torvalds 19231da177e4SLinus Torvalds /* 19241da177e4SLinus Torvalds * GETATTR_BITMAP request 19251da177e4SLinus Torvalds */ 19268687b63aSAl Viro static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) 19271da177e4SLinus Torvalds { 19281da177e4SLinus Torvalds struct xdr_stream xdr; 19291da177e4SLinus Torvalds struct compound_hdr hdr = { 19301da177e4SLinus Torvalds .nops = 2, 19311da177e4SLinus Torvalds }; 19321da177e4SLinus Torvalds int status; 19331da177e4SLinus Torvalds 19341da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19351da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19361da177e4SLinus Torvalds status = encode_putfh(&xdr, fhandle); 19371da177e4SLinus Torvalds if (status == 0) 19381da177e4SLinus Torvalds status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 19391da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 19401da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 19411da177e4SLinus Torvalds FATTR4_WORD0_ACLSUPPORT); 19421da177e4SLinus Torvalds return status; 19431da177e4SLinus Torvalds } 19441da177e4SLinus Torvalds 19451da177e4SLinus Torvalds /* 19461da177e4SLinus Torvalds * a RENEW request 19471da177e4SLinus Torvalds */ 19488687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 19491da177e4SLinus Torvalds { 19501da177e4SLinus Torvalds struct xdr_stream xdr; 19511da177e4SLinus Torvalds struct compound_hdr hdr = { 19521da177e4SLinus Torvalds .nops = 1, 19531da177e4SLinus Torvalds }; 19541da177e4SLinus Torvalds 19551da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19561da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19571da177e4SLinus Torvalds return encode_renew(&xdr, clp); 19581da177e4SLinus Torvalds } 19591da177e4SLinus Torvalds 19601da177e4SLinus Torvalds /* 19611da177e4SLinus Torvalds * a SETCLIENTID request 19621da177e4SLinus Torvalds */ 19638687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 19641da177e4SLinus Torvalds { 19651da177e4SLinus Torvalds struct xdr_stream xdr; 19661da177e4SLinus Torvalds struct compound_hdr hdr = { 19671da177e4SLinus Torvalds .nops = 1, 19681da177e4SLinus Torvalds }; 19691da177e4SLinus Torvalds 19701da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19711da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19721da177e4SLinus Torvalds return encode_setclientid(&xdr, sc); 19731da177e4SLinus Torvalds } 19741da177e4SLinus Torvalds 19751da177e4SLinus Torvalds /* 19761da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 19771da177e4SLinus Torvalds */ 19788687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 19791da177e4SLinus Torvalds { 19801da177e4SLinus Torvalds struct xdr_stream xdr; 19811da177e4SLinus Torvalds struct compound_hdr hdr = { 19821da177e4SLinus Torvalds .nops = 3, 19831da177e4SLinus Torvalds }; 19841da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 19851da177e4SLinus Torvalds int status; 19861da177e4SLinus Torvalds 19871da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19881da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19891da177e4SLinus Torvalds status = encode_setclientid_confirm(&xdr, clp); 19901da177e4SLinus Torvalds if (!status) 19911da177e4SLinus Torvalds status = encode_putrootfh(&xdr); 19921da177e4SLinus Torvalds if (!status) 19931da177e4SLinus Torvalds status = encode_fsinfo(&xdr, lease_bitmap); 19941da177e4SLinus Torvalds return status; 19951da177e4SLinus Torvalds } 19961da177e4SLinus Torvalds 19971da177e4SLinus Torvalds /* 19981da177e4SLinus Torvalds * DELEGRETURN request 19991da177e4SLinus Torvalds */ 20008687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 20011da177e4SLinus Torvalds { 20021da177e4SLinus Torvalds struct xdr_stream xdr; 20031da177e4SLinus Torvalds struct compound_hdr hdr = { 2004fa178f29STrond Myklebust .nops = 3, 20051da177e4SLinus Torvalds }; 20061da177e4SLinus Torvalds int status; 20071da177e4SLinus Torvalds 20081da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20091da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 2010fa178f29STrond Myklebust status = encode_putfh(&xdr, args->fhandle); 2011fa178f29STrond Myklebust if (status != 0) 2012fa178f29STrond Myklebust goto out; 20131da177e4SLinus Torvalds status = encode_delegreturn(&xdr, args->stateid); 2014fa178f29STrond Myklebust if (status != 0) 2015fa178f29STrond Myklebust goto out; 2016fa178f29STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 2017fa178f29STrond Myklebust out: 20181da177e4SLinus Torvalds return status; 20191da177e4SLinus Torvalds } 20201da177e4SLinus Torvalds 20211da177e4SLinus Torvalds /* 2022683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2023683b57b4STrond Myklebust */ 20248687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2025683b57b4STrond Myklebust { 2026683b57b4STrond Myklebust struct xdr_stream xdr; 2027683b57b4STrond Myklebust struct compound_hdr hdr = { 2028683b57b4STrond Myklebust .nops = 3, 2029683b57b4STrond Myklebust }; 2030683b57b4STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_auth; 2031683b57b4STrond Myklebust int replen; 2032683b57b4STrond Myklebust int status; 2033683b57b4STrond Myklebust 2034683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2035683b57b4STrond Myklebust encode_compound_hdr(&xdr, &hdr); 2036683b57b4STrond Myklebust if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 2037683b57b4STrond Myklebust goto out; 2038683b57b4STrond Myklebust if ((status = encode_lookup(&xdr, args->name)) != 0) 2039683b57b4STrond Myklebust goto out; 2040830b8e33SManoj Naik if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0) 2041683b57b4STrond Myklebust goto out; 2042683b57b4STrond Myklebust /* set up reply 2043830b8e33SManoj Naik * toplevel_status + OP_PUTFH + status 2044683b57b4STrond Myklebust * + OP_LOOKUP + status + OP_GETATTR + status = 7 2045683b57b4STrond Myklebust */ 2046683b57b4STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; 2047683b57b4STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, 2048683b57b4STrond Myklebust 0, PAGE_SIZE); 2049683b57b4STrond Myklebust out: 2050683b57b4STrond Myklebust return status; 2051683b57b4STrond Myklebust } 2052683b57b4STrond Myklebust 2053683b57b4STrond Myklebust /* 20541da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 20551da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 20561da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 20571da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 20581da177e4SLinus Torvalds * 20591da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 20601da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 20611da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 20621da177e4SLinus Torvalds */ 20631da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 20641da177e4SLinus Torvalds #define READ64(x) do { \ 20651da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 20661da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 20671da177e4SLinus Torvalds } while (0) 20681da177e4SLinus Torvalds #define READTIME(x) do { \ 20691da177e4SLinus Torvalds p++; \ 20701da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 20711da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 20721da177e4SLinus Torvalds } while (0) 20731da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 20741da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 20751da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 20761da177e4SLinus Torvalds } while (0) 20771da177e4SLinus Torvalds 20781da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 20791da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 20801da177e4SLinus Torvalds if (!p) { \ 20811da177e4SLinus Torvalds printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \ 20821da177e4SLinus Torvalds __FUNCTION__, __LINE__); \ 20831da177e4SLinus Torvalds return -EIO; \ 20841da177e4SLinus Torvalds } \ 20851da177e4SLinus Torvalds } while (0) 20861da177e4SLinus Torvalds 2087683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 20881da177e4SLinus Torvalds { 20898687b63aSAl Viro __be32 *p; 20901da177e4SLinus Torvalds 20911da177e4SLinus Torvalds READ_BUF(4); 20921da177e4SLinus Torvalds READ32(*len); 20931da177e4SLinus Torvalds READ_BUF(*len); 20941da177e4SLinus Torvalds *string = (char *)p; 20951da177e4SLinus Torvalds return 0; 20961da177e4SLinus Torvalds } 20971da177e4SLinus Torvalds 20981da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 20991da177e4SLinus Torvalds { 21008687b63aSAl Viro __be32 *p; 21011da177e4SLinus Torvalds 21021da177e4SLinus Torvalds READ_BUF(8); 21031da177e4SLinus Torvalds READ32(hdr->status); 21041da177e4SLinus Torvalds READ32(hdr->taglen); 21051da177e4SLinus Torvalds 21061da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 21071da177e4SLinus Torvalds hdr->tag = (char *)p; 21081da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 21091da177e4SLinus Torvalds READ32(hdr->nops); 21101da177e4SLinus Torvalds return 0; 21111da177e4SLinus Torvalds } 21121da177e4SLinus Torvalds 21131da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 21141da177e4SLinus Torvalds { 21158687b63aSAl Viro __be32 *p; 21161da177e4SLinus Torvalds uint32_t opnum; 21171da177e4SLinus Torvalds int32_t nfserr; 21181da177e4SLinus Torvalds 21191da177e4SLinus Torvalds READ_BUF(8); 21201da177e4SLinus Torvalds READ32(opnum); 21211da177e4SLinus Torvalds if (opnum != expected) { 21221da177e4SLinus Torvalds printk(KERN_NOTICE 21231da177e4SLinus Torvalds "nfs4_decode_op_hdr: Server returned operation" 21241da177e4SLinus Torvalds " %d but we issued a request for %d\n", 21251da177e4SLinus Torvalds opnum, expected); 21261da177e4SLinus Torvalds return -EIO; 21271da177e4SLinus Torvalds } 21281da177e4SLinus Torvalds READ32(nfserr); 21291da177e4SLinus Torvalds if (nfserr != NFS_OK) 21300a8ea437SDavid Howells return -nfs4_stat_to_errno(nfserr); 21311da177e4SLinus Torvalds return 0; 21321da177e4SLinus Torvalds } 21331da177e4SLinus Torvalds 21341da177e4SLinus Torvalds /* Dummy routine */ 2135adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 21361da177e4SLinus Torvalds { 21378687b63aSAl Viro __be32 *p; 2138683b57b4STrond Myklebust unsigned int strlen; 21391da177e4SLinus Torvalds char *str; 21401da177e4SLinus Torvalds 21411da177e4SLinus Torvalds READ_BUF(12); 21421da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 21431da177e4SLinus Torvalds } 21441da177e4SLinus Torvalds 21451da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 21461da177e4SLinus Torvalds { 21478687b63aSAl Viro uint32_t bmlen; 21488687b63aSAl Viro __be32 *p; 21491da177e4SLinus Torvalds 21501da177e4SLinus Torvalds READ_BUF(4); 21511da177e4SLinus Torvalds READ32(bmlen); 21521da177e4SLinus Torvalds 21531da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 21541da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 21551da177e4SLinus Torvalds if (bmlen > 0) { 21561da177e4SLinus Torvalds READ32(bitmap[0]); 21571da177e4SLinus Torvalds if (bmlen > 1) 21581da177e4SLinus Torvalds READ32(bitmap[1]); 21591da177e4SLinus Torvalds } 21601da177e4SLinus Torvalds return 0; 21611da177e4SLinus Torvalds } 21621da177e4SLinus Torvalds 21638687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 21641da177e4SLinus Torvalds { 21658687b63aSAl Viro __be32 *p; 21661da177e4SLinus Torvalds 21671da177e4SLinus Torvalds READ_BUF(4); 21681da177e4SLinus Torvalds READ32(*attrlen); 21691da177e4SLinus Torvalds *savep = xdr->p; 21701da177e4SLinus Torvalds return 0; 21711da177e4SLinus Torvalds } 21721da177e4SLinus Torvalds 21731da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 21741da177e4SLinus Torvalds { 21751da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 21761da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 21771da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 21781da177e4SLinus Torvalds } else 21791da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 21801da177e4SLinus Torvalds dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); 21811da177e4SLinus Torvalds return 0; 21821da177e4SLinus Torvalds } 21831da177e4SLinus Torvalds 21841da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 21851da177e4SLinus Torvalds { 21868687b63aSAl Viro __be32 *p; 21871da177e4SLinus Torvalds 21881da177e4SLinus Torvalds *type = 0; 21891da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 21901da177e4SLinus Torvalds return -EIO; 21911da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 21921da177e4SLinus Torvalds READ_BUF(4); 21931da177e4SLinus Torvalds READ32(*type); 21941da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 21951da177e4SLinus Torvalds dprintk("%s: bad type %d\n", __FUNCTION__, *type); 21961da177e4SLinus Torvalds return -EIO; 21971da177e4SLinus Torvalds } 21981da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 21991da177e4SLinus Torvalds } 22001da177e4SLinus Torvalds dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); 22011da177e4SLinus Torvalds return 0; 22021da177e4SLinus Torvalds } 22031da177e4SLinus Torvalds 22041da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 22051da177e4SLinus Torvalds { 22068687b63aSAl Viro __be32 *p; 22071da177e4SLinus Torvalds 22081da177e4SLinus Torvalds *change = 0; 22091da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 22101da177e4SLinus Torvalds return -EIO; 22111da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 22121da177e4SLinus Torvalds READ_BUF(8); 22131da177e4SLinus Torvalds READ64(*change); 22141da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 22151da177e4SLinus Torvalds } 22161da177e4SLinus Torvalds dprintk("%s: change attribute=%Lu\n", __FUNCTION__, 22171da177e4SLinus Torvalds (unsigned long long)*change); 22181da177e4SLinus Torvalds return 0; 22191da177e4SLinus Torvalds } 22201da177e4SLinus Torvalds 22211da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 22221da177e4SLinus Torvalds { 22238687b63aSAl Viro __be32 *p; 22241da177e4SLinus Torvalds 22251da177e4SLinus Torvalds *size = 0; 22261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 22271da177e4SLinus Torvalds return -EIO; 22281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 22291da177e4SLinus Torvalds READ_BUF(8); 22301da177e4SLinus Torvalds READ64(*size); 22311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 22321da177e4SLinus Torvalds } 22331da177e4SLinus Torvalds dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); 22341da177e4SLinus Torvalds return 0; 22351da177e4SLinus Torvalds } 22361da177e4SLinus Torvalds 22371da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22381da177e4SLinus Torvalds { 22398687b63aSAl Viro __be32 *p; 22401da177e4SLinus Torvalds 22411da177e4SLinus Torvalds *res = 0; 22421da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 22431da177e4SLinus Torvalds return -EIO; 22441da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 22451da177e4SLinus Torvalds READ_BUF(4); 22461da177e4SLinus Torvalds READ32(*res); 22471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 22481da177e4SLinus Torvalds } 22491da177e4SLinus Torvalds dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 22501da177e4SLinus Torvalds return 0; 22511da177e4SLinus Torvalds } 22521da177e4SLinus Torvalds 22531da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22541da177e4SLinus Torvalds { 22558687b63aSAl Viro __be32 *p; 22561da177e4SLinus Torvalds 22571da177e4SLinus Torvalds *res = 0; 22581da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 22591da177e4SLinus Torvalds return -EIO; 22601da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 22611da177e4SLinus Torvalds READ_BUF(4); 22621da177e4SLinus Torvalds READ32(*res); 22631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 22641da177e4SLinus Torvalds } 22651da177e4SLinus Torvalds dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 22661da177e4SLinus Torvalds return 0; 22671da177e4SLinus Torvalds } 22681da177e4SLinus Torvalds 22698b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 22701da177e4SLinus Torvalds { 22718687b63aSAl Viro __be32 *p; 22721da177e4SLinus Torvalds 22731da177e4SLinus Torvalds fsid->major = 0; 22741da177e4SLinus Torvalds fsid->minor = 0; 22751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 22761da177e4SLinus Torvalds return -EIO; 22771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 22781da177e4SLinus Torvalds READ_BUF(16); 22791da177e4SLinus Torvalds READ64(fsid->major); 22801da177e4SLinus Torvalds READ64(fsid->minor); 22811da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 22821da177e4SLinus Torvalds } 22831da177e4SLinus Torvalds dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, 22841da177e4SLinus Torvalds (unsigned long long)fsid->major, 22851da177e4SLinus Torvalds (unsigned long long)fsid->minor); 22861da177e4SLinus Torvalds return 0; 22871da177e4SLinus Torvalds } 22881da177e4SLinus Torvalds 22891da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22901da177e4SLinus Torvalds { 22918687b63aSAl Viro __be32 *p; 22921da177e4SLinus Torvalds 22931da177e4SLinus Torvalds *res = 60; 22941da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 22951da177e4SLinus Torvalds return -EIO; 22961da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 22971da177e4SLinus Torvalds READ_BUF(4); 22981da177e4SLinus Torvalds READ32(*res); 22991da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 23001da177e4SLinus Torvalds } 23011da177e4SLinus Torvalds dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); 23021da177e4SLinus Torvalds return 0; 23031da177e4SLinus Torvalds } 23041da177e4SLinus Torvalds 23051da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23061da177e4SLinus Torvalds { 23078687b63aSAl Viro __be32 *p; 23081da177e4SLinus Torvalds 23091da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 23101da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 23111da177e4SLinus Torvalds return -EIO; 23121da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 23131da177e4SLinus Torvalds READ_BUF(4); 23141da177e4SLinus Torvalds READ32(*res); 23151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 23161da177e4SLinus Torvalds } 23171da177e4SLinus Torvalds dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); 23181da177e4SLinus Torvalds return 0; 23191da177e4SLinus Torvalds } 23201da177e4SLinus Torvalds 23211da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 23221da177e4SLinus Torvalds { 23238687b63aSAl Viro __be32 *p; 23241da177e4SLinus Torvalds 23251da177e4SLinus Torvalds *fileid = 0; 23261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 23271da177e4SLinus Torvalds return -EIO; 23281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 23291da177e4SLinus Torvalds READ_BUF(8); 23301da177e4SLinus Torvalds READ64(*fileid); 23311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 23321da177e4SLinus Torvalds } 23331da177e4SLinus Torvalds dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 23341da177e4SLinus Torvalds return 0; 23351da177e4SLinus Torvalds } 23361da177e4SLinus Torvalds 233799baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 233899baf625SManoj Naik { 23398687b63aSAl Viro __be32 *p; 234099baf625SManoj Naik 234199baf625SManoj Naik *fileid = 0; 234299baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 234399baf625SManoj Naik return -EIO; 234499baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 234599baf625SManoj Naik READ_BUF(8); 234699baf625SManoj Naik READ64(*fileid); 234799baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 234899baf625SManoj Naik } 234999baf625SManoj Naik dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 235099baf625SManoj Naik return 0; 235199baf625SManoj Naik } 235299baf625SManoj Naik 23531da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23541da177e4SLinus Torvalds { 23558687b63aSAl Viro __be32 *p; 23561da177e4SLinus Torvalds int status = 0; 23571da177e4SLinus Torvalds 23581da177e4SLinus Torvalds *res = 0; 23591da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 23601da177e4SLinus Torvalds return -EIO; 23611da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 23621da177e4SLinus Torvalds READ_BUF(8); 23631da177e4SLinus Torvalds READ64(*res); 23641da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 23651da177e4SLinus Torvalds } 23661da177e4SLinus Torvalds dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 23671da177e4SLinus Torvalds return status; 23681da177e4SLinus Torvalds } 23691da177e4SLinus Torvalds 23701da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23711da177e4SLinus Torvalds { 23728687b63aSAl Viro __be32 *p; 23731da177e4SLinus Torvalds int status = 0; 23741da177e4SLinus Torvalds 23751da177e4SLinus Torvalds *res = 0; 23761da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 23771da177e4SLinus Torvalds return -EIO; 23781da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 23791da177e4SLinus Torvalds READ_BUF(8); 23801da177e4SLinus Torvalds READ64(*res); 23811da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 23821da177e4SLinus Torvalds } 23831da177e4SLinus Torvalds dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 23841da177e4SLinus Torvalds return status; 23851da177e4SLinus Torvalds } 23861da177e4SLinus Torvalds 23871da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23881da177e4SLinus Torvalds { 23898687b63aSAl Viro __be32 *p; 23901da177e4SLinus Torvalds int status = 0; 23911da177e4SLinus Torvalds 23921da177e4SLinus Torvalds *res = 0; 23931da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 23941da177e4SLinus Torvalds return -EIO; 23951da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 23961da177e4SLinus Torvalds READ_BUF(8); 23971da177e4SLinus Torvalds READ64(*res); 23981da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 23991da177e4SLinus Torvalds } 24001da177e4SLinus Torvalds dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24011da177e4SLinus Torvalds return status; 24021da177e4SLinus Torvalds } 24031da177e4SLinus Torvalds 24047aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 24057aaa0b3bSManoj Naik { 24067aaa0b3bSManoj Naik int n; 24078687b63aSAl Viro __be32 *p; 24087aaa0b3bSManoj Naik int status = 0; 24097aaa0b3bSManoj Naik 24107aaa0b3bSManoj Naik READ_BUF(4); 24117aaa0b3bSManoj Naik READ32(n); 241233a43f28SAndy Adamson if (n < 0) 24137aaa0b3bSManoj Naik goto out_eio; 241433a43f28SAndy Adamson if (n == 0) 241533a43f28SAndy Adamson goto root_path; 24167aaa0b3bSManoj Naik dprintk("path "); 24177aaa0b3bSManoj Naik path->ncomponents = 0; 24187aaa0b3bSManoj Naik while (path->ncomponents < n) { 24197aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 24207aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 24217aaa0b3bSManoj Naik if (unlikely(status != 0)) 24227aaa0b3bSManoj Naik goto out_eio; 24237aaa0b3bSManoj Naik if (path->ncomponents != n) 24247aaa0b3bSManoj Naik dprintk("/"); 24257aaa0b3bSManoj Naik dprintk("%s", component->data); 24267aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 24277aaa0b3bSManoj Naik path->ncomponents++; 24287aaa0b3bSManoj Naik else { 24297aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 24307aaa0b3bSManoj Naik goto out_eio; 24317aaa0b3bSManoj Naik } 24327aaa0b3bSManoj Naik } 24337aaa0b3bSManoj Naik out: 24347aaa0b3bSManoj Naik dprintk("\n"); 24357aaa0b3bSManoj Naik return status; 243633a43f28SAndy Adamson root_path: 243733a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 243833a43f28SAndy Adamson path->ncomponents = 1; 243933a43f28SAndy Adamson path->components[0].len=0; 244033a43f28SAndy Adamson path->components[0].data=NULL; 244133a43f28SAndy Adamson dprintk("path /\n"); 244233a43f28SAndy Adamson goto out; 24437aaa0b3bSManoj Naik out_eio: 24447aaa0b3bSManoj Naik dprintk(" status %d", status); 24457aaa0b3bSManoj Naik status = -EIO; 24467aaa0b3bSManoj Naik goto out; 24477aaa0b3bSManoj Naik } 24487aaa0b3bSManoj Naik 24497aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2450683b57b4STrond Myklebust { 2451683b57b4STrond Myklebust int n; 24528687b63aSAl Viro __be32 *p; 2453683b57b4STrond Myklebust int status = -EIO; 2454683b57b4STrond Myklebust 2455683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2456683b57b4STrond Myklebust goto out; 2457683b57b4STrond Myklebust status = 0; 2458683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2459683b57b4STrond Myklebust goto out; 24607aaa0b3bSManoj Naik dprintk("%s: fsroot ", __FUNCTION__); 24617aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2462683b57b4STrond Myklebust if (unlikely(status != 0)) 2463683b57b4STrond Myklebust goto out; 2464683b57b4STrond Myklebust READ_BUF(4); 2465683b57b4STrond Myklebust READ32(n); 2466683b57b4STrond Myklebust if (n <= 0) 2467683b57b4STrond Myklebust goto out_eio; 2468683b57b4STrond Myklebust res->nlocations = 0; 2469683b57b4STrond Myklebust while (res->nlocations < n) { 24707aaa0b3bSManoj Naik int m; 24717aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2472683b57b4STrond Myklebust 24737aaa0b3bSManoj Naik READ_BUF(4); 24747aaa0b3bSManoj Naik READ32(m); 24757aaa0b3bSManoj Naik if (m <= 0) 24767aaa0b3bSManoj Naik goto out_eio; 24777aaa0b3bSManoj Naik 24787aaa0b3bSManoj Naik loc->nservers = 0; 24797aaa0b3bSManoj Naik dprintk("%s: servers ", __FUNCTION__); 24807aaa0b3bSManoj Naik while (loc->nservers < m) { 24817aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 24827aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2483683b57b4STrond Myklebust if (unlikely(status != 0)) 2484683b57b4STrond Myklebust goto out_eio; 24857aaa0b3bSManoj Naik dprintk("%s ", server->data); 24867aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 24877aaa0b3bSManoj Naik loc->nservers++; 24887aaa0b3bSManoj Naik else { 24897aaa0b3bSManoj Naik int i; 24907aaa0b3bSManoj Naik dprintk("%s: using first %d of %d servers returned for location %d\n", __FUNCTION__, NFS4_FS_LOCATION_MAXSERVERS, m, res->nlocations); 24917aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 24927aaa0b3bSManoj Naik int len; 24937aaa0b3bSManoj Naik char *data; 24947aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2495683b57b4STrond Myklebust if (unlikely(status != 0)) 2496683b57b4STrond Myklebust goto out_eio; 24977aaa0b3bSManoj Naik } 24987aaa0b3bSManoj Naik } 24997aaa0b3bSManoj Naik } 25007aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 25017aaa0b3bSManoj Naik if (unlikely(status != 0)) 25027aaa0b3bSManoj Naik goto out_eio; 25037aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2504683b57b4STrond Myklebust res->nlocations++; 2505683b57b4STrond Myklebust } 2506683b57b4STrond Myklebust out: 2507683b57b4STrond Myklebust dprintk("%s: fs_locations done, error = %d\n", __FUNCTION__, status); 2508683b57b4STrond Myklebust return status; 2509683b57b4STrond Myklebust out_eio: 2510683b57b4STrond Myklebust status = -EIO; 2511683b57b4STrond Myklebust goto out; 2512683b57b4STrond Myklebust } 2513683b57b4STrond Myklebust 25141da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 25151da177e4SLinus Torvalds { 25168687b63aSAl Viro __be32 *p; 25171da177e4SLinus Torvalds int status = 0; 25181da177e4SLinus Torvalds 25191da177e4SLinus Torvalds *res = 0; 25201da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 25211da177e4SLinus Torvalds return -EIO; 25221da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 25231da177e4SLinus Torvalds READ_BUF(8); 25241da177e4SLinus Torvalds READ64(*res); 25251da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 25261da177e4SLinus Torvalds } 25271da177e4SLinus Torvalds dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); 25281da177e4SLinus Torvalds return status; 25291da177e4SLinus Torvalds } 25301da177e4SLinus Torvalds 25311da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 25321da177e4SLinus Torvalds { 25338687b63aSAl Viro __be32 *p; 25341da177e4SLinus Torvalds int status = 0; 25351da177e4SLinus Torvalds 25361da177e4SLinus Torvalds *maxlink = 1; 25371da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 25381da177e4SLinus Torvalds return -EIO; 25391da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 25401da177e4SLinus Torvalds READ_BUF(4); 25411da177e4SLinus Torvalds READ32(*maxlink); 25421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 25431da177e4SLinus Torvalds } 25441da177e4SLinus Torvalds dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); 25451da177e4SLinus Torvalds return status; 25461da177e4SLinus Torvalds } 25471da177e4SLinus Torvalds 25481da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 25491da177e4SLinus Torvalds { 25508687b63aSAl Viro __be32 *p; 25511da177e4SLinus Torvalds int status = 0; 25521da177e4SLinus Torvalds 25531da177e4SLinus Torvalds *maxname = 1024; 25541da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 25551da177e4SLinus Torvalds return -EIO; 25561da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 25571da177e4SLinus Torvalds READ_BUF(4); 25581da177e4SLinus Torvalds READ32(*maxname); 25591da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 25601da177e4SLinus Torvalds } 25611da177e4SLinus Torvalds dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); 25621da177e4SLinus Torvalds return status; 25631da177e4SLinus Torvalds } 25641da177e4SLinus Torvalds 25651da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 25661da177e4SLinus Torvalds { 25678687b63aSAl Viro __be32 *p; 25681da177e4SLinus Torvalds int status = 0; 25691da177e4SLinus Torvalds 25701da177e4SLinus Torvalds *res = 1024; 25711da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 25721da177e4SLinus Torvalds return -EIO; 25731da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 25741da177e4SLinus Torvalds uint64_t maxread; 25751da177e4SLinus Torvalds READ_BUF(8); 25761da177e4SLinus Torvalds READ64(maxread); 25771da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 25781da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 25791da177e4SLinus Torvalds *res = (uint32_t)maxread; 25801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 25811da177e4SLinus Torvalds } 25821da177e4SLinus Torvalds dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); 25831da177e4SLinus Torvalds return status; 25841da177e4SLinus Torvalds } 25851da177e4SLinus Torvalds 25861da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 25871da177e4SLinus Torvalds { 25888687b63aSAl Viro __be32 *p; 25891da177e4SLinus Torvalds int status = 0; 25901da177e4SLinus Torvalds 25911da177e4SLinus Torvalds *res = 1024; 25921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 25931da177e4SLinus Torvalds return -EIO; 25941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 25951da177e4SLinus Torvalds uint64_t maxwrite; 25961da177e4SLinus Torvalds READ_BUF(8); 25971da177e4SLinus Torvalds READ64(maxwrite); 25981da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 25991da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 26001da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 26011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 26021da177e4SLinus Torvalds } 26031da177e4SLinus Torvalds dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); 26041da177e4SLinus Torvalds return status; 26051da177e4SLinus Torvalds } 26061da177e4SLinus Torvalds 26071da177e4SLinus Torvalds static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) 26081da177e4SLinus Torvalds { 26098687b63aSAl Viro __be32 *p; 26101da177e4SLinus Torvalds 26111da177e4SLinus Torvalds *mode = 0; 26121da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 26131da177e4SLinus Torvalds return -EIO; 26141da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 26151da177e4SLinus Torvalds READ_BUF(4); 26161da177e4SLinus Torvalds READ32(*mode); 26171da177e4SLinus Torvalds *mode &= ~S_IFMT; 26181da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 26191da177e4SLinus Torvalds } 26201da177e4SLinus Torvalds dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); 26211da177e4SLinus Torvalds return 0; 26221da177e4SLinus Torvalds } 26231da177e4SLinus Torvalds 26241da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 26251da177e4SLinus Torvalds { 26268687b63aSAl Viro __be32 *p; 26271da177e4SLinus Torvalds 26281da177e4SLinus Torvalds *nlink = 1; 26291da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 26301da177e4SLinus Torvalds return -EIO; 26311da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 26321da177e4SLinus Torvalds READ_BUF(4); 26331da177e4SLinus Torvalds READ32(*nlink); 26341da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 26351da177e4SLinus Torvalds } 26361da177e4SLinus Torvalds dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); 26371da177e4SLinus Torvalds return 0; 26381da177e4SLinus Torvalds } 26391da177e4SLinus Torvalds 2640adfa6f98SDavid Howells static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, int32_t *uid) 26411da177e4SLinus Torvalds { 26428687b63aSAl Viro uint32_t len; 26438687b63aSAl Viro __be32 *p; 26441da177e4SLinus Torvalds 26451da177e4SLinus Torvalds *uid = -2; 26461da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 26471da177e4SLinus Torvalds return -EIO; 26481da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 26491da177e4SLinus Torvalds READ_BUF(4); 26501da177e4SLinus Torvalds READ32(len); 26511da177e4SLinus Torvalds READ_BUF(len); 26521da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 26531da177e4SLinus Torvalds if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) 26541da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 26551da177e4SLinus Torvalds __FUNCTION__); 26561da177e4SLinus Torvalds } else 26571da177e4SLinus Torvalds printk(KERN_WARNING "%s: name too long (%u)!\n", 26581da177e4SLinus Torvalds __FUNCTION__, len); 26591da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 26601da177e4SLinus Torvalds } 26611da177e4SLinus Torvalds dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); 26621da177e4SLinus Torvalds return 0; 26631da177e4SLinus Torvalds } 26641da177e4SLinus Torvalds 2665adfa6f98SDavid Howells static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, int32_t *gid) 26661da177e4SLinus Torvalds { 26678687b63aSAl Viro uint32_t len; 26688687b63aSAl Viro __be32 *p; 26691da177e4SLinus Torvalds 26701da177e4SLinus Torvalds *gid = -2; 26711da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 26721da177e4SLinus Torvalds return -EIO; 26731da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 26741da177e4SLinus Torvalds READ_BUF(4); 26751da177e4SLinus Torvalds READ32(len); 26761da177e4SLinus Torvalds READ_BUF(len); 26771da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 26781da177e4SLinus Torvalds if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) 26791da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 26801da177e4SLinus Torvalds __FUNCTION__); 26811da177e4SLinus Torvalds } else 26821da177e4SLinus Torvalds printk(KERN_WARNING "%s: name too long (%u)!\n", 26831da177e4SLinus Torvalds __FUNCTION__, len); 26841da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 26851da177e4SLinus Torvalds } 26861da177e4SLinus Torvalds dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); 26871da177e4SLinus Torvalds return 0; 26881da177e4SLinus Torvalds } 26891da177e4SLinus Torvalds 26901da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 26911da177e4SLinus Torvalds { 26928687b63aSAl Viro uint32_t major = 0, minor = 0; 26938687b63aSAl Viro __be32 *p; 26941da177e4SLinus Torvalds 26951da177e4SLinus Torvalds *rdev = MKDEV(0,0); 26961da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 26971da177e4SLinus Torvalds return -EIO; 26981da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 26991da177e4SLinus Torvalds dev_t tmp; 27001da177e4SLinus Torvalds 27011da177e4SLinus Torvalds READ_BUF(8); 27021da177e4SLinus Torvalds READ32(major); 27031da177e4SLinus Torvalds READ32(minor); 27041da177e4SLinus Torvalds tmp = MKDEV(major, minor); 27051da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 27061da177e4SLinus Torvalds *rdev = tmp; 27071da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 27081da177e4SLinus Torvalds } 27091da177e4SLinus Torvalds dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); 27101da177e4SLinus Torvalds return 0; 27111da177e4SLinus Torvalds } 27121da177e4SLinus Torvalds 27131da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27141da177e4SLinus Torvalds { 27158687b63aSAl Viro __be32 *p; 27161da177e4SLinus Torvalds int status = 0; 27171da177e4SLinus Torvalds 27181da177e4SLinus Torvalds *res = 0; 27191da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 27201da177e4SLinus Torvalds return -EIO; 27211da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 27221da177e4SLinus Torvalds READ_BUF(8); 27231da177e4SLinus Torvalds READ64(*res); 27241da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 27251da177e4SLinus Torvalds } 27261da177e4SLinus Torvalds dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 27271da177e4SLinus Torvalds return status; 27281da177e4SLinus Torvalds } 27291da177e4SLinus Torvalds 27301da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27311da177e4SLinus Torvalds { 27328687b63aSAl Viro __be32 *p; 27331da177e4SLinus Torvalds int status = 0; 27341da177e4SLinus Torvalds 27351da177e4SLinus Torvalds *res = 0; 27361da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 27371da177e4SLinus Torvalds return -EIO; 27381da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 27391da177e4SLinus Torvalds READ_BUF(8); 27401da177e4SLinus Torvalds READ64(*res); 27411da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 27421da177e4SLinus Torvalds } 27431da177e4SLinus Torvalds dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 27441da177e4SLinus Torvalds return status; 27451da177e4SLinus Torvalds } 27461da177e4SLinus Torvalds 27471da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27481da177e4SLinus Torvalds { 27498687b63aSAl Viro __be32 *p; 27501da177e4SLinus Torvalds int status = 0; 27511da177e4SLinus Torvalds 27521da177e4SLinus Torvalds *res = 0; 27531da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 27541da177e4SLinus Torvalds return -EIO; 27551da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 27561da177e4SLinus Torvalds READ_BUF(8); 27571da177e4SLinus Torvalds READ64(*res); 27581da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 27591da177e4SLinus Torvalds } 27601da177e4SLinus Torvalds dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 27611da177e4SLinus Torvalds return status; 27621da177e4SLinus Torvalds } 27631da177e4SLinus Torvalds 27641da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 27651da177e4SLinus Torvalds { 27668687b63aSAl Viro __be32 *p; 27671da177e4SLinus Torvalds 27681da177e4SLinus Torvalds *used = 0; 27691da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 27701da177e4SLinus Torvalds return -EIO; 27711da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 27721da177e4SLinus Torvalds READ_BUF(8); 27731da177e4SLinus Torvalds READ64(*used); 27741da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 27751da177e4SLinus Torvalds } 27761da177e4SLinus Torvalds dprintk("%s: space used=%Lu\n", __FUNCTION__, 27771da177e4SLinus Torvalds (unsigned long long)*used); 27781da177e4SLinus Torvalds return 0; 27791da177e4SLinus Torvalds } 27801da177e4SLinus Torvalds 27811da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 27821da177e4SLinus Torvalds { 27838687b63aSAl Viro __be32 *p; 27841da177e4SLinus Torvalds uint64_t sec; 27851da177e4SLinus Torvalds uint32_t nsec; 27861da177e4SLinus Torvalds 27871da177e4SLinus Torvalds READ_BUF(12); 27881da177e4SLinus Torvalds READ64(sec); 27891da177e4SLinus Torvalds READ32(nsec); 27901da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 27911da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 27921da177e4SLinus Torvalds return 0; 27931da177e4SLinus Torvalds } 27941da177e4SLinus Torvalds 27951da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 27961da177e4SLinus Torvalds { 27971da177e4SLinus Torvalds int status = 0; 27981da177e4SLinus Torvalds 27991da177e4SLinus Torvalds time->tv_sec = 0; 28001da177e4SLinus Torvalds time->tv_nsec = 0; 28011da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 28021da177e4SLinus Torvalds return -EIO; 28031da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 28041da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 28051da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 28061da177e4SLinus Torvalds } 28071da177e4SLinus Torvalds dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); 28081da177e4SLinus Torvalds return status; 28091da177e4SLinus Torvalds } 28101da177e4SLinus Torvalds 28111da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 28121da177e4SLinus Torvalds { 28131da177e4SLinus Torvalds int status = 0; 28141da177e4SLinus Torvalds 28151da177e4SLinus Torvalds time->tv_sec = 0; 28161da177e4SLinus Torvalds time->tv_nsec = 0; 28171da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 28181da177e4SLinus Torvalds return -EIO; 28191da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 28201da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 28211da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 28221da177e4SLinus Torvalds } 28231da177e4SLinus Torvalds dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); 28241da177e4SLinus Torvalds return status; 28251da177e4SLinus Torvalds } 28261da177e4SLinus Torvalds 28271da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 28281da177e4SLinus Torvalds { 28291da177e4SLinus Torvalds int status = 0; 28301da177e4SLinus Torvalds 28311da177e4SLinus Torvalds time->tv_sec = 0; 28321da177e4SLinus Torvalds time->tv_nsec = 0; 28331da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 28341da177e4SLinus Torvalds return -EIO; 28351da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 28361da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 28371da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 28381da177e4SLinus Torvalds } 28391da177e4SLinus Torvalds dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); 28401da177e4SLinus Torvalds return status; 28411da177e4SLinus Torvalds } 28421da177e4SLinus Torvalds 28438687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 28441da177e4SLinus Torvalds { 28451da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 28461da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 28471da177e4SLinus Torvalds 28481da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 28491da177e4SLinus Torvalds printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n", 28501da177e4SLinus Torvalds __FUNCTION__, 28511da177e4SLinus Torvalds attrwords << 2, 28521da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 28531da177e4SLinus Torvalds nwords << 2); 28541da177e4SLinus Torvalds return -EIO; 28551da177e4SLinus Torvalds } 28561da177e4SLinus Torvalds return 0; 28571da177e4SLinus Torvalds } 28581da177e4SLinus Torvalds 28591da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 28601da177e4SLinus Torvalds { 28618687b63aSAl Viro __be32 *p; 28621da177e4SLinus Torvalds 28631da177e4SLinus Torvalds READ_BUF(20); 28641da177e4SLinus Torvalds READ32(cinfo->atomic); 28651da177e4SLinus Torvalds READ64(cinfo->before); 28661da177e4SLinus Torvalds READ64(cinfo->after); 28671da177e4SLinus Torvalds return 0; 28681da177e4SLinus Torvalds } 28691da177e4SLinus Torvalds 28701da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 28711da177e4SLinus Torvalds { 28728687b63aSAl Viro __be32 *p; 28731da177e4SLinus Torvalds uint32_t supp, acc; 28741da177e4SLinus Torvalds int status; 28751da177e4SLinus Torvalds 28761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 28771da177e4SLinus Torvalds if (status) 28781da177e4SLinus Torvalds return status; 28791da177e4SLinus Torvalds READ_BUF(8); 28801da177e4SLinus Torvalds READ32(supp); 28811da177e4SLinus Torvalds READ32(acc); 28821da177e4SLinus Torvalds access->supported = supp; 28831da177e4SLinus Torvalds access->access = acc; 28841da177e4SLinus Torvalds return 0; 28851da177e4SLinus Torvalds } 28861da177e4SLinus Torvalds 28871da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 28881da177e4SLinus Torvalds { 28898687b63aSAl Viro __be32 *p; 28901da177e4SLinus Torvalds int status; 28911da177e4SLinus Torvalds 28921da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 28931da177e4SLinus Torvalds if (status) 28941da177e4SLinus Torvalds return status; 28951da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 28961da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 28971da177e4SLinus Torvalds return 0; 28981da177e4SLinus Torvalds } 28991da177e4SLinus Torvalds 29001da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 29011da177e4SLinus Torvalds { 29028687b63aSAl Viro __be32 *p; 29031da177e4SLinus Torvalds int status; 29041da177e4SLinus Torvalds 29051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 29061da177e4SLinus Torvalds if (status) 29071da177e4SLinus Torvalds return status; 29081da177e4SLinus Torvalds READ_BUF(8); 29091da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 29101da177e4SLinus Torvalds return 0; 29111da177e4SLinus Torvalds } 29121da177e4SLinus Torvalds 29131da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 29141da177e4SLinus Torvalds { 29158687b63aSAl Viro __be32 *p; 29161da177e4SLinus Torvalds uint32_t bmlen; 29171da177e4SLinus Torvalds int status; 29181da177e4SLinus Torvalds 29191da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 29201da177e4SLinus Torvalds if (status) 29211da177e4SLinus Torvalds return status; 29221da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 29231da177e4SLinus Torvalds return status; 29241da177e4SLinus Torvalds READ_BUF(4); 29251da177e4SLinus Torvalds READ32(bmlen); 29261da177e4SLinus Torvalds READ_BUF(bmlen << 2); 29271da177e4SLinus Torvalds return 0; 29281da177e4SLinus Torvalds } 29291da177e4SLinus Torvalds 29301da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 29311da177e4SLinus Torvalds { 29328687b63aSAl Viro __be32 *savep; 29331da177e4SLinus Torvalds uint32_t attrlen, 29341da177e4SLinus Torvalds bitmap[2] = {0}; 29351da177e4SLinus Torvalds int status; 29361da177e4SLinus Torvalds 29371da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29381da177e4SLinus Torvalds goto xdr_error; 29391da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 29401da177e4SLinus Torvalds goto xdr_error; 29411da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 29421da177e4SLinus Torvalds goto xdr_error; 29431da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 29441da177e4SLinus Torvalds goto xdr_error; 29451da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 29461da177e4SLinus Torvalds goto xdr_error; 29471da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 29481da177e4SLinus Torvalds goto xdr_error; 29491da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 29501da177e4SLinus Torvalds goto xdr_error; 29511da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 29521da177e4SLinus Torvalds xdr_error: 295316c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 29541da177e4SLinus Torvalds return status; 29551da177e4SLinus Torvalds } 29561da177e4SLinus Torvalds 29571da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 29581da177e4SLinus Torvalds { 29598687b63aSAl Viro __be32 *savep; 29601da177e4SLinus Torvalds uint32_t attrlen, 29611da177e4SLinus Torvalds bitmap[2] = {0}; 29621da177e4SLinus Torvalds int status; 29631da177e4SLinus Torvalds 29641da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29651da177e4SLinus Torvalds goto xdr_error; 29661da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 29671da177e4SLinus Torvalds goto xdr_error; 29681da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 29691da177e4SLinus Torvalds goto xdr_error; 29701da177e4SLinus Torvalds 29711da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 29721da177e4SLinus Torvalds goto xdr_error; 29731da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 29741da177e4SLinus Torvalds goto xdr_error; 29751da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 29761da177e4SLinus Torvalds goto xdr_error; 29771da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 29781da177e4SLinus Torvalds goto xdr_error; 29791da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 29801da177e4SLinus Torvalds goto xdr_error; 29811da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 29821da177e4SLinus Torvalds goto xdr_error; 29831da177e4SLinus Torvalds 29841da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 29851da177e4SLinus Torvalds xdr_error: 298616c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 29871da177e4SLinus Torvalds return status; 29881da177e4SLinus Torvalds } 29891da177e4SLinus Torvalds 29901da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 29911da177e4SLinus Torvalds { 29928687b63aSAl Viro __be32 *savep; 29931da177e4SLinus Torvalds uint32_t attrlen, 29941da177e4SLinus Torvalds bitmap[2] = {0}; 29951da177e4SLinus Torvalds int status; 29961da177e4SLinus Torvalds 29971da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29981da177e4SLinus Torvalds goto xdr_error; 29991da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30001da177e4SLinus Torvalds goto xdr_error; 30011da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30021da177e4SLinus Torvalds goto xdr_error; 30031da177e4SLinus Torvalds 30041da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 30051da177e4SLinus Torvalds goto xdr_error; 30061da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 30071da177e4SLinus Torvalds goto xdr_error; 30081da177e4SLinus Torvalds 30091da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30101da177e4SLinus Torvalds xdr_error: 301116c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 30121da177e4SLinus Torvalds return status; 30131da177e4SLinus Torvalds } 30141da177e4SLinus Torvalds 30151da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 30161da177e4SLinus Torvalds { 30178687b63aSAl Viro __be32 *savep; 30181da177e4SLinus Torvalds uint32_t attrlen, 30191da177e4SLinus Torvalds bitmap[2] = {0}, 30201da177e4SLinus Torvalds type; 30211da177e4SLinus Torvalds int status, fmode = 0; 302299baf625SManoj Naik uint64_t fileid; 30231da177e4SLinus Torvalds 30241da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30251da177e4SLinus Torvalds goto xdr_error; 30261da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30271da177e4SLinus Torvalds goto xdr_error; 30281da177e4SLinus Torvalds 30291da177e4SLinus Torvalds fattr->bitmap[0] = bitmap[0]; 30301da177e4SLinus Torvalds fattr->bitmap[1] = bitmap[1]; 30311da177e4SLinus Torvalds 30321da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30331da177e4SLinus Torvalds goto xdr_error; 30341da177e4SLinus Torvalds 30351da177e4SLinus Torvalds 30361da177e4SLinus Torvalds if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) 30371da177e4SLinus Torvalds goto xdr_error; 30381da177e4SLinus Torvalds fattr->type = nfs_type2fmt[type].nfs2type; 30391da177e4SLinus Torvalds fmode = nfs_type2fmt[type].mode; 30401da177e4SLinus Torvalds 30411da177e4SLinus Torvalds if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) 30421da177e4SLinus Torvalds goto xdr_error; 30431da177e4SLinus Torvalds if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) 30441da177e4SLinus Torvalds goto xdr_error; 30458b4bdcf8STrond Myklebust if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) 30461da177e4SLinus Torvalds goto xdr_error; 30471da177e4SLinus Torvalds if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) 30481da177e4SLinus Torvalds goto xdr_error; 3049683b57b4STrond Myklebust if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 30507aaa0b3bSManoj Naik struct nfs4_fs_locations, 3051683b57b4STrond Myklebust fattr))) != 0) 3052683b57b4STrond Myklebust goto xdr_error; 30531da177e4SLinus Torvalds if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) 30541da177e4SLinus Torvalds goto xdr_error; 30551da177e4SLinus Torvalds fattr->mode |= fmode; 30561da177e4SLinus Torvalds if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) 30571da177e4SLinus Torvalds goto xdr_error; 30587539bbabSDavid Howells if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) 30591da177e4SLinus Torvalds goto xdr_error; 30607539bbabSDavid Howells if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) 30611da177e4SLinus Torvalds goto xdr_error; 30621da177e4SLinus Torvalds if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) 30631da177e4SLinus Torvalds goto xdr_error; 30641da177e4SLinus Torvalds if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) 30651da177e4SLinus Torvalds goto xdr_error; 30661da177e4SLinus Torvalds if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) 30671da177e4SLinus Torvalds goto xdr_error; 30681da177e4SLinus Torvalds if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) 30691da177e4SLinus Torvalds goto xdr_error; 30701da177e4SLinus Torvalds if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) 30711da177e4SLinus Torvalds goto xdr_error; 307299baf625SManoj Naik if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) 307399baf625SManoj Naik goto xdr_error; 307499baf625SManoj Naik if (fattr->fileid == 0 && fileid != 0) 307599baf625SManoj Naik fattr->fileid = fileid; 307633801147STrond Myklebust if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) 30771da177e4SLinus Torvalds fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; 30781da177e4SLinus Torvalds xdr_error: 307916c32b71STrond Myklebust dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); 30801da177e4SLinus Torvalds return status; 30811da177e4SLinus Torvalds } 30821da177e4SLinus Torvalds 30831da177e4SLinus Torvalds 30841da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 30851da177e4SLinus Torvalds { 30868687b63aSAl Viro __be32 *savep; 30871da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 30881da177e4SLinus Torvalds int status; 30891da177e4SLinus Torvalds 30901da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30911da177e4SLinus Torvalds goto xdr_error; 30921da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30931da177e4SLinus Torvalds goto xdr_error; 30941da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30951da177e4SLinus Torvalds goto xdr_error; 30961da177e4SLinus Torvalds 30971da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 30981da177e4SLinus Torvalds 30991da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 31001da177e4SLinus Torvalds goto xdr_error; 31011da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 31021da177e4SLinus Torvalds goto xdr_error; 31031da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 31041da177e4SLinus Torvalds goto xdr_error; 31051da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 31061da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 31071da177e4SLinus Torvalds goto xdr_error; 31081da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 31091da177e4SLinus Torvalds 31101da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 31111da177e4SLinus Torvalds xdr_error: 311216c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 31131da177e4SLinus Torvalds return status; 31141da177e4SLinus Torvalds } 31151da177e4SLinus Torvalds 31161da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 31171da177e4SLinus Torvalds { 31188687b63aSAl Viro __be32 *p; 31191da177e4SLinus Torvalds uint32_t len; 31201da177e4SLinus Torvalds int status; 31211da177e4SLinus Torvalds 31221da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 31231da177e4SLinus Torvalds if (status) 31241da177e4SLinus Torvalds return status; 31251da177e4SLinus Torvalds /* Zero handle first to allow comparisons */ 31261da177e4SLinus Torvalds memset(fh, 0, sizeof(*fh)); 31271da177e4SLinus Torvalds 31281da177e4SLinus Torvalds READ_BUF(4); 31291da177e4SLinus Torvalds READ32(len); 31301da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 31311da177e4SLinus Torvalds return -EIO; 31321da177e4SLinus Torvalds fh->size = len; 31331da177e4SLinus Torvalds READ_BUF(len); 31341da177e4SLinus Torvalds COPYMEM(fh->data, len); 31351da177e4SLinus Torvalds return 0; 31361da177e4SLinus Torvalds } 31371da177e4SLinus Torvalds 31381da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 31391da177e4SLinus Torvalds { 31401da177e4SLinus Torvalds int status; 31411da177e4SLinus Torvalds 31421da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 31431da177e4SLinus Torvalds if (status) 31441da177e4SLinus Torvalds return status; 31451da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 31461da177e4SLinus Torvalds } 31471da177e4SLinus Torvalds 31481da177e4SLinus Torvalds /* 31491da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 31501da177e4SLinus Torvalds */ 3151911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 31521da177e4SLinus Torvalds { 3153911d1aafSTrond Myklebust uint64_t offset, length, clientid; 31548687b63aSAl Viro __be32 *p; 3155911d1aafSTrond Myklebust uint32_t namelen, type; 31561da177e4SLinus Torvalds 31571da177e4SLinus Torvalds READ_BUF(32); 3158911d1aafSTrond Myklebust READ64(offset); 3159911d1aafSTrond Myklebust READ64(length); 3160911d1aafSTrond Myklebust READ32(type); 3161911d1aafSTrond Myklebust if (fl != NULL) { 3162911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3163911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3164911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3165911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3166911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3167911d1aafSTrond Myklebust if (type & 1) 3168911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3169911d1aafSTrond Myklebust fl->fl_pid = 0; 3170911d1aafSTrond Myklebust } 3171911d1aafSTrond Myklebust READ64(clientid); 31721da177e4SLinus Torvalds READ32(namelen); 31731da177e4SLinus Torvalds READ_BUF(namelen); 31741da177e4SLinus Torvalds return -NFS4ERR_DENIED; 31751da177e4SLinus Torvalds } 31761da177e4SLinus Torvalds 3177911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 31781da177e4SLinus Torvalds { 31798687b63aSAl Viro __be32 *p; 31801da177e4SLinus Torvalds int status; 31811da177e4SLinus Torvalds 31821da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 31831da177e4SLinus Torvalds if (status == 0) { 3184911d1aafSTrond Myklebust READ_BUF(sizeof(res->stateid.data)); 3185911d1aafSTrond Myklebust COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 31861da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3187911d1aafSTrond Myklebust return decode_lock_denied(xdr, NULL); 31881da177e4SLinus Torvalds return status; 31891da177e4SLinus Torvalds } 31901da177e4SLinus Torvalds 3191911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 31921da177e4SLinus Torvalds { 31931da177e4SLinus Torvalds int status; 31941da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 31951da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3196911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 31971da177e4SLinus Torvalds return status; 31981da177e4SLinus Torvalds } 31991da177e4SLinus Torvalds 3200911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 32011da177e4SLinus Torvalds { 32028687b63aSAl Viro __be32 *p; 32031da177e4SLinus Torvalds int status; 32041da177e4SLinus Torvalds 32051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 32061da177e4SLinus Torvalds if (status == 0) { 3207911d1aafSTrond Myklebust READ_BUF(sizeof(res->stateid.data)); 3208911d1aafSTrond Myklebust COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 32091da177e4SLinus Torvalds } 32101da177e4SLinus Torvalds return status; 32111da177e4SLinus Torvalds } 32121da177e4SLinus Torvalds 32131da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 32141da177e4SLinus Torvalds { 32151da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 32161da177e4SLinus Torvalds } 32171da177e4SLinus Torvalds 32181da177e4SLinus Torvalds /* This is too sick! */ 32191da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 32201da177e4SLinus Torvalds { 32218687b63aSAl Viro __be32 *p; 32221da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 32231da177e4SLinus Torvalds 32241da177e4SLinus Torvalds READ_BUF(12); 32251da177e4SLinus Torvalds READ32(limit_type); 32261da177e4SLinus Torvalds switch (limit_type) { 32271da177e4SLinus Torvalds case 1: 32281da177e4SLinus Torvalds READ64(*maxsize); 32291da177e4SLinus Torvalds break; 32301da177e4SLinus Torvalds case 2: 32311da177e4SLinus Torvalds READ32(nblocks); 32321da177e4SLinus Torvalds READ32(blocksize); 32331da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 32341da177e4SLinus Torvalds } 32351da177e4SLinus Torvalds return 0; 32361da177e4SLinus Torvalds } 32371da177e4SLinus Torvalds 32381da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 32391da177e4SLinus Torvalds { 32408687b63aSAl Viro __be32 *p; 32411da177e4SLinus Torvalds uint32_t delegation_type; 32421da177e4SLinus Torvalds 32431da177e4SLinus Torvalds READ_BUF(4); 32441da177e4SLinus Torvalds READ32(delegation_type); 32451da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 32461da177e4SLinus Torvalds res->delegation_type = 0; 32471da177e4SLinus Torvalds return 0; 32481da177e4SLinus Torvalds } 32491da177e4SLinus Torvalds READ_BUF(20); 32501da177e4SLinus Torvalds COPYMEM(res->delegation.data, sizeof(res->delegation.data)); 32511da177e4SLinus Torvalds READ32(res->do_recall); 32521da177e4SLinus Torvalds switch (delegation_type) { 32531da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 32541da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 32551da177e4SLinus Torvalds break; 32561da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 32571da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 32581da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 32591da177e4SLinus Torvalds return -EIO; 32601da177e4SLinus Torvalds } 32617539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 32621da177e4SLinus Torvalds } 32631da177e4SLinus Torvalds 32641da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 32651da177e4SLinus Torvalds { 32668687b63aSAl Viro __be32 *p; 32671da177e4SLinus Torvalds uint32_t bmlen; 32681da177e4SLinus Torvalds int status; 32691da177e4SLinus Torvalds 32701da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 32711da177e4SLinus Torvalds if (status) 32721da177e4SLinus Torvalds return status; 32731da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 32741da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 32751da177e4SLinus Torvalds 32761da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 32771da177e4SLinus Torvalds 32781da177e4SLinus Torvalds READ_BUF(8); 32791da177e4SLinus Torvalds READ32(res->rflags); 32801da177e4SLinus Torvalds READ32(bmlen); 32811da177e4SLinus Torvalds if (bmlen > 10) 32821da177e4SLinus Torvalds goto xdr_error; 32831da177e4SLinus Torvalds 32841da177e4SLinus Torvalds READ_BUF(bmlen << 2); 32851da177e4SLinus Torvalds p += bmlen; 32861da177e4SLinus Torvalds return decode_delegation(xdr, res); 32871da177e4SLinus Torvalds xdr_error: 328816c32b71STrond Myklebust dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); 32891da177e4SLinus Torvalds return -EIO; 32901da177e4SLinus Torvalds } 32911da177e4SLinus Torvalds 32921da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 32931da177e4SLinus Torvalds { 32948687b63aSAl Viro __be32 *p; 32951da177e4SLinus Torvalds int status; 32961da177e4SLinus Torvalds 32971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 32981da177e4SLinus Torvalds if (status) 32991da177e4SLinus Torvalds return status; 33001da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 33011da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 33021da177e4SLinus Torvalds return 0; 33031da177e4SLinus Torvalds } 33041da177e4SLinus Torvalds 33051da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 33061da177e4SLinus Torvalds { 33078687b63aSAl Viro __be32 *p; 33081da177e4SLinus Torvalds int status; 33091da177e4SLinus Torvalds 33101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 33111da177e4SLinus Torvalds if (status) 33121da177e4SLinus Torvalds return status; 33131da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 33141da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 33151da177e4SLinus Torvalds return 0; 33161da177e4SLinus Torvalds } 33171da177e4SLinus Torvalds 33181da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 33191da177e4SLinus Torvalds { 33201da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 33211da177e4SLinus Torvalds } 33221da177e4SLinus Torvalds 33231da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 33241da177e4SLinus Torvalds { 33251da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 33261da177e4SLinus Torvalds } 33271da177e4SLinus Torvalds 33281da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 33291da177e4SLinus Torvalds { 33301da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 33318687b63aSAl Viro __be32 *p; 33321da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 33331da177e4SLinus Torvalds int status; 33341da177e4SLinus Torvalds 33351da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 33361da177e4SLinus Torvalds if (status) 33371da177e4SLinus Torvalds return status; 33381da177e4SLinus Torvalds READ_BUF(8); 33391da177e4SLinus Torvalds READ32(eof); 33401da177e4SLinus Torvalds READ32(count); 33411da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 33421da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 33431da177e4SLinus Torvalds if (count > recvd) { 33441da177e4SLinus Torvalds printk(KERN_WARNING "NFS: server cheating in read reply: " 33451da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 33461da177e4SLinus Torvalds count = recvd; 33471da177e4SLinus Torvalds eof = 0; 33481da177e4SLinus Torvalds } 33491da177e4SLinus Torvalds xdr_read_pages(xdr, count); 33501da177e4SLinus Torvalds res->eof = eof; 33511da177e4SLinus Torvalds res->count = count; 33521da177e4SLinus Torvalds return 0; 33531da177e4SLinus Torvalds } 33541da177e4SLinus Torvalds 33551da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 33561da177e4SLinus Torvalds { 33571da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 33581da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 33591da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 33601da177e4SLinus Torvalds unsigned int nr, pglen = rcvbuf->page_len; 33618687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 3362e8896495SDavid Howells uint32_t len, attrlen, xlen; 33631da177e4SLinus Torvalds int hdrlen, recvd, status; 33641da177e4SLinus Torvalds 33651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 33661da177e4SLinus Torvalds if (status) 33671da177e4SLinus Torvalds return status; 33681da177e4SLinus Torvalds READ_BUF(8); 33691da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 3370eadf4598STrond Myklebust dprintk("%s: verifier = 0x%x%x\n", 3371eadf4598STrond Myklebust __FUNCTION__, 3372eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3373eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3374eadf4598STrond Myklebust 33751da177e4SLinus Torvalds 33761da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 33771da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 33781da177e4SLinus Torvalds if (pglen > recvd) 33791da177e4SLinus Torvalds pglen = recvd; 33801da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 33811da177e4SLinus Torvalds 33821da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 33838687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3384e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 33851da177e4SLinus Torvalds entry = p; 33861da177e4SLinus Torvalds for (nr = 0; *p++; nr++) { 3387e8896495SDavid Howells if (end - p < 3) 33881da177e4SLinus Torvalds goto short_pkt; 3389eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 33901da177e4SLinus Torvalds p += 2; /* cookie */ 33911da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 33921da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 33931da177e4SLinus Torvalds printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); 33941da177e4SLinus Torvalds goto err_unmap; 33951da177e4SLinus Torvalds } 3396e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3397e8896495SDavid Howells if (end - p < xlen + 1) 3398e8896495SDavid Howells goto short_pkt; 3399eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3400e8896495SDavid Howells p += xlen; 34011da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3402e8896495SDavid Howells if (end - p < len + 1) 3403e8896495SDavid Howells goto short_pkt; 34041da177e4SLinus Torvalds p += len; 34051da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3406e8896495SDavid Howells if (end - p < attrlen + 2) 34071da177e4SLinus Torvalds goto short_pkt; 3408e8896495SDavid Howells p += attrlen; /* attributes */ 34091da177e4SLinus Torvalds entry = p; 34101da177e4SLinus Torvalds } 34111da177e4SLinus Torvalds if (!nr && (entry[0] != 0 || entry[1] == 0)) 34121da177e4SLinus Torvalds goto short_pkt; 34131da177e4SLinus Torvalds out: 34141da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 34151da177e4SLinus Torvalds return 0; 34161da177e4SLinus Torvalds short_pkt: 3417eadf4598STrond Myklebust dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); 34181da177e4SLinus Torvalds entry[0] = entry[1] = 0; 34191da177e4SLinus Torvalds /* truncate listing ? */ 34201da177e4SLinus Torvalds if (!nr) { 34211da177e4SLinus Torvalds printk(KERN_NOTICE "NFS: readdir reply truncated!\n"); 34221da177e4SLinus Torvalds entry[1] = 1; 34231da177e4SLinus Torvalds } 34241da177e4SLinus Torvalds goto out; 34251da177e4SLinus Torvalds err_unmap: 34261da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 34271da177e4SLinus Torvalds return -errno_NFSERR_IO; 34281da177e4SLinus Torvalds } 34291da177e4SLinus Torvalds 34301da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 34311da177e4SLinus Torvalds { 34321da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 34331da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 34341da177e4SLinus Torvalds int hdrlen, len, recvd; 34358687b63aSAl Viro __be32 *p; 34361da177e4SLinus Torvalds char *kaddr; 34371da177e4SLinus Torvalds int status; 34381da177e4SLinus Torvalds 34391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 34401da177e4SLinus Torvalds if (status) 34411da177e4SLinus Torvalds return status; 34421da177e4SLinus Torvalds 34431da177e4SLinus Torvalds /* Convert length of symlink */ 34441da177e4SLinus Torvalds READ_BUF(4); 34451da177e4SLinus Torvalds READ32(len); 34461da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 34471da177e4SLinus Torvalds dprintk(KERN_WARNING "nfs: server returned giant symlink!\n"); 34481da177e4SLinus Torvalds return -ENAMETOOLONG; 34491da177e4SLinus Torvalds } 34501da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 34511da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 34521da177e4SLinus Torvalds if (recvd < len) { 34531da177e4SLinus Torvalds printk(KERN_WARNING "NFS: server cheating in readlink reply: " 34541da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 34551da177e4SLinus Torvalds return -EIO; 34561da177e4SLinus Torvalds } 34571da177e4SLinus Torvalds xdr_read_pages(xdr, len); 34581da177e4SLinus Torvalds /* 34591da177e4SLinus Torvalds * The XDR encode routine has set things up so that 34601da177e4SLinus Torvalds * the link text will be copied directly into the 34611da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 34621da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 34631da177e4SLinus Torvalds * null-termination). 34641da177e4SLinus Torvalds */ 34651da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 34661da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 34671da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 34681da177e4SLinus Torvalds return 0; 34691da177e4SLinus Torvalds } 34701da177e4SLinus Torvalds 34711da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 34721da177e4SLinus Torvalds { 34731da177e4SLinus Torvalds int status; 34741da177e4SLinus Torvalds 34751da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 34761da177e4SLinus Torvalds if (status) 34771da177e4SLinus Torvalds goto out; 34781da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 34791da177e4SLinus Torvalds out: 34801da177e4SLinus Torvalds return status; 34811da177e4SLinus Torvalds } 34821da177e4SLinus Torvalds 34831da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 34841da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 34851da177e4SLinus Torvalds { 34861da177e4SLinus Torvalds int status; 34871da177e4SLinus Torvalds 34881da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 34891da177e4SLinus Torvalds if (status) 34901da177e4SLinus Torvalds goto out; 34911da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 34921da177e4SLinus Torvalds goto out; 34931da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 34941da177e4SLinus Torvalds out: 34951da177e4SLinus Torvalds return status; 34961da177e4SLinus Torvalds } 34971da177e4SLinus Torvalds 34981da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 34991da177e4SLinus Torvalds { 35001da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 35011da177e4SLinus Torvalds } 35021da177e4SLinus Torvalds 350356ae19f3STrond Myklebust static int 350456ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 350556ae19f3STrond Myklebust { 350656ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 350756ae19f3STrond Myklebust } 350856ae19f3STrond Myklebust 3509029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3510029d105eSJ. Bruce Fields size_t *acl_len) 3511029d105eSJ. Bruce Fields { 35128687b63aSAl Viro __be32 *savep; 3513029d105eSJ. Bruce Fields uint32_t attrlen, 3514029d105eSJ. Bruce Fields bitmap[2] = {0}; 3515029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 3516029d105eSJ. Bruce Fields int status; 3517029d105eSJ. Bruce Fields 3518029d105eSJ. Bruce Fields *acl_len = 0; 3519029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3520029d105eSJ. Bruce Fields goto out; 3521029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3522029d105eSJ. Bruce Fields goto out; 3523029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3524029d105eSJ. Bruce Fields goto out; 3525029d105eSJ. Bruce Fields 3526029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3527029d105eSJ. Bruce Fields return -EIO; 3528029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3529029d105eSJ. Bruce Fields int hdrlen, recvd; 3530029d105eSJ. Bruce Fields 3531029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 3532029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 3533029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3534029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 3535029d105eSJ. Bruce Fields if (attrlen > recvd) { 3536029d105eSJ. Bruce Fields printk(KERN_WARNING "NFS: server cheating in getattr" 3537029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 3538029d105eSJ. Bruce Fields attrlen, recvd); 3539029d105eSJ. Bruce Fields return -EINVAL; 3540029d105eSJ. Bruce Fields } 3541029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 3542029d105eSJ. Bruce Fields *acl_len = attrlen; 35438c233cf9SJ. Bruce Fields } else 35448c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 3545029d105eSJ. Bruce Fields 3546029d105eSJ. Bruce Fields out: 3547029d105eSJ. Bruce Fields return status; 3548029d105eSJ. Bruce Fields } 3549029d105eSJ. Bruce Fields 35501da177e4SLinus Torvalds static int 35511da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 35521da177e4SLinus Torvalds { 35531da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 35541da177e4SLinus Torvalds } 35551da177e4SLinus Torvalds 35561da177e4SLinus Torvalds static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) 35571da177e4SLinus Torvalds { 35588687b63aSAl Viro __be32 *p; 35591da177e4SLinus Torvalds uint32_t bmlen; 35601da177e4SLinus Torvalds int status; 35611da177e4SLinus Torvalds 35621da177e4SLinus Torvalds 35631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 35641da177e4SLinus Torvalds if (status) 35651da177e4SLinus Torvalds return status; 35661da177e4SLinus Torvalds READ_BUF(4); 35671da177e4SLinus Torvalds READ32(bmlen); 35681da177e4SLinus Torvalds READ_BUF(bmlen << 2); 35691da177e4SLinus Torvalds return 0; 35701da177e4SLinus Torvalds } 35711da177e4SLinus Torvalds 3572adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 35731da177e4SLinus Torvalds { 35748687b63aSAl Viro __be32 *p; 35751da177e4SLinus Torvalds uint32_t opnum; 35761da177e4SLinus Torvalds int32_t nfserr; 35771da177e4SLinus Torvalds 35781da177e4SLinus Torvalds READ_BUF(8); 35791da177e4SLinus Torvalds READ32(opnum); 35801da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 35811da177e4SLinus Torvalds printk(KERN_NOTICE 35821da177e4SLinus Torvalds "nfs4_decode_setclientid: Server returned operation" 35831da177e4SLinus Torvalds " %d\n", opnum); 35841da177e4SLinus Torvalds return -EIO; 35851da177e4SLinus Torvalds } 35861da177e4SLinus Torvalds READ32(nfserr); 35871da177e4SLinus Torvalds if (nfserr == NFS_OK) { 35881da177e4SLinus Torvalds READ_BUF(8 + sizeof(clp->cl_confirm.data)); 35891da177e4SLinus Torvalds READ64(clp->cl_clientid); 35901da177e4SLinus Torvalds COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data)); 35911da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 35921da177e4SLinus Torvalds uint32_t len; 35931da177e4SLinus Torvalds 35941da177e4SLinus Torvalds /* skip netid string */ 35951da177e4SLinus Torvalds READ_BUF(4); 35961da177e4SLinus Torvalds READ32(len); 35971da177e4SLinus Torvalds READ_BUF(len); 35981da177e4SLinus Torvalds 35991da177e4SLinus Torvalds /* skip uaddr string */ 36001da177e4SLinus Torvalds READ_BUF(4); 36011da177e4SLinus Torvalds READ32(len); 36021da177e4SLinus Torvalds READ_BUF(len); 36031da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 36041da177e4SLinus Torvalds } else 36050a8ea437SDavid Howells return -nfs4_stat_to_errno(nfserr); 36061da177e4SLinus Torvalds 36071da177e4SLinus Torvalds return 0; 36081da177e4SLinus Torvalds } 36091da177e4SLinus Torvalds 36101da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 36111da177e4SLinus Torvalds { 36121da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 36131da177e4SLinus Torvalds } 36141da177e4SLinus Torvalds 36151da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 36161da177e4SLinus Torvalds { 36178687b63aSAl Viro __be32 *p; 36181da177e4SLinus Torvalds int status; 36191da177e4SLinus Torvalds 36201da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 36211da177e4SLinus Torvalds if (status) 36221da177e4SLinus Torvalds return status; 36231da177e4SLinus Torvalds 36241da177e4SLinus Torvalds READ_BUF(16); 36251da177e4SLinus Torvalds READ32(res->count); 36261da177e4SLinus Torvalds READ32(res->verf->committed); 36271da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 36281da177e4SLinus Torvalds return 0; 36291da177e4SLinus Torvalds } 36301da177e4SLinus Torvalds 36311da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 36321da177e4SLinus Torvalds { 36331da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 36341da177e4SLinus Torvalds } 36351da177e4SLinus Torvalds 36361da177e4SLinus Torvalds /* 36371da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 36381da177e4SLinus Torvalds */ 36398687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 36401da177e4SLinus Torvalds { 36411da177e4SLinus Torvalds struct xdr_stream xdr; 36421da177e4SLinus Torvalds struct compound_hdr hdr; 36431da177e4SLinus Torvalds int status; 36441da177e4SLinus Torvalds 36451da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36461da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 36471da177e4SLinus Torvalds if (status) 36481da177e4SLinus Torvalds goto out; 36491da177e4SLinus Torvalds status = decode_putfh(&xdr); 36501da177e4SLinus Torvalds if (status) 36511da177e4SLinus Torvalds goto out; 36521da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 3653516a6af6STrond Myklebust if (status != 0) 3654516a6af6STrond Myklebust goto out; 3655516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 36561da177e4SLinus Torvalds out: 36571da177e4SLinus Torvalds return status; 36581da177e4SLinus Torvalds } 36591da177e4SLinus Torvalds 36601da177e4SLinus Torvalds /* 36611da177e4SLinus Torvalds * END OF "GENERIC" DECODE ROUTINES. 36621da177e4SLinus Torvalds */ 36631da177e4SLinus Torvalds 36641da177e4SLinus Torvalds /* 36651da177e4SLinus Torvalds * Decode ACCESS response 36661da177e4SLinus Torvalds */ 36678687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 36681da177e4SLinus Torvalds { 36691da177e4SLinus Torvalds struct xdr_stream xdr; 36701da177e4SLinus Torvalds struct compound_hdr hdr; 36711da177e4SLinus Torvalds int status; 36721da177e4SLinus Torvalds 36731da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36741da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 36751da177e4SLinus Torvalds goto out; 36761da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) == 0) 36771da177e4SLinus Torvalds status = decode_access(&xdr, res); 36781da177e4SLinus Torvalds out: 36791da177e4SLinus Torvalds return status; 36801da177e4SLinus Torvalds } 36811da177e4SLinus Torvalds 36821da177e4SLinus Torvalds /* 36831da177e4SLinus Torvalds * Decode LOOKUP response 36841da177e4SLinus Torvalds */ 36858687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 36861da177e4SLinus Torvalds { 36871da177e4SLinus Torvalds struct xdr_stream xdr; 36881da177e4SLinus Torvalds struct compound_hdr hdr; 36891da177e4SLinus Torvalds int status; 36901da177e4SLinus Torvalds 36911da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36921da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 36931da177e4SLinus Torvalds goto out; 36941da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 36951da177e4SLinus Torvalds goto out; 36961da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 36971da177e4SLinus Torvalds goto out; 36981da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 36991da177e4SLinus Torvalds goto out; 37001da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 37011da177e4SLinus Torvalds out: 37021da177e4SLinus Torvalds return status; 37031da177e4SLinus Torvalds } 37041da177e4SLinus Torvalds 37051da177e4SLinus Torvalds /* 37061da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 37071da177e4SLinus Torvalds */ 37088687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 37091da177e4SLinus Torvalds { 37101da177e4SLinus Torvalds struct xdr_stream xdr; 37111da177e4SLinus Torvalds struct compound_hdr hdr; 37121da177e4SLinus Torvalds int status; 37131da177e4SLinus Torvalds 37141da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37151da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37161da177e4SLinus Torvalds goto out; 37171da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 37181da177e4SLinus Torvalds goto out; 37191da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 37201da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 37211da177e4SLinus Torvalds out: 37221da177e4SLinus Torvalds return status; 37231da177e4SLinus Torvalds } 37241da177e4SLinus Torvalds 37251da177e4SLinus Torvalds /* 37261da177e4SLinus Torvalds * Decode REMOVE response 37271da177e4SLinus Torvalds */ 37288687b63aSAl Viro static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_remove_res *res) 37291da177e4SLinus Torvalds { 37301da177e4SLinus Torvalds struct xdr_stream xdr; 37311da177e4SLinus Torvalds struct compound_hdr hdr; 37321da177e4SLinus Torvalds int status; 37331da177e4SLinus Torvalds 37341da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37351da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37361da177e4SLinus Torvalds goto out; 373716e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 373816e42959STrond Myklebust goto out; 373916e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 374016e42959STrond Myklebust goto out; 374116e42959STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 37421da177e4SLinus Torvalds out: 37431da177e4SLinus Torvalds return status; 37441da177e4SLinus Torvalds } 37451da177e4SLinus Torvalds 37461da177e4SLinus Torvalds /* 37471da177e4SLinus Torvalds * Decode RENAME response 37481da177e4SLinus Torvalds */ 37498687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 37501da177e4SLinus Torvalds { 37511da177e4SLinus Torvalds struct xdr_stream xdr; 37521da177e4SLinus Torvalds struct compound_hdr hdr; 37531da177e4SLinus Torvalds int status; 37541da177e4SLinus Torvalds 37551da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37561da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37571da177e4SLinus Torvalds goto out; 37581da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 37591da177e4SLinus Torvalds goto out; 37601da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 37611da177e4SLinus Torvalds goto out; 37621da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 37631da177e4SLinus Torvalds goto out; 37646caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 37656caf2c82STrond Myklebust goto out; 37666caf2c82STrond Myklebust /* Current FH is target directory */ 37676caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 37686caf2c82STrond Myklebust goto out; 37696caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 37706caf2c82STrond Myklebust goto out; 37716caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 37721da177e4SLinus Torvalds out: 37731da177e4SLinus Torvalds return status; 37741da177e4SLinus Torvalds } 37751da177e4SLinus Torvalds 37761da177e4SLinus Torvalds /* 37771da177e4SLinus Torvalds * Decode LINK response 37781da177e4SLinus Torvalds */ 37798687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 37801da177e4SLinus Torvalds { 37811da177e4SLinus Torvalds struct xdr_stream xdr; 37821da177e4SLinus Torvalds struct compound_hdr hdr; 37831da177e4SLinus Torvalds int status; 37841da177e4SLinus Torvalds 37851da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37861da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37871da177e4SLinus Torvalds goto out; 37881da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 37891da177e4SLinus Torvalds goto out; 37901da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 37911da177e4SLinus Torvalds goto out; 37921da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 37931da177e4SLinus Torvalds goto out; 379491ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 379591ba2eeeSTrond Myklebust goto out; 379691ba2eeeSTrond Myklebust /* 379791ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 379891ba2eeeSTrond Myklebust * filehandle. 379991ba2eeeSTrond Myklebust */ 380091ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 380191ba2eeeSTrond Myklebust goto out; 380291ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 380391ba2eeeSTrond Myklebust goto out; 380491ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 38051da177e4SLinus Torvalds out: 38061da177e4SLinus Torvalds return status; 38071da177e4SLinus Torvalds } 38081da177e4SLinus Torvalds 38091da177e4SLinus Torvalds /* 38101da177e4SLinus Torvalds * Decode CREATE response 38111da177e4SLinus Torvalds */ 38128687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 38131da177e4SLinus Torvalds { 38141da177e4SLinus Torvalds struct xdr_stream xdr; 38151da177e4SLinus Torvalds struct compound_hdr hdr; 38161da177e4SLinus Torvalds int status; 38171da177e4SLinus Torvalds 38181da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38191da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38201da177e4SLinus Torvalds goto out; 38211da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38221da177e4SLinus Torvalds goto out; 382356ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 382456ae19f3STrond Myklebust goto out; 38251da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 38261da177e4SLinus Torvalds goto out; 38271da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 38281da177e4SLinus Torvalds goto out; 382956ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 383056ae19f3STrond Myklebust goto out; 383156ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 383256ae19f3STrond Myklebust goto out; 383356ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 38341da177e4SLinus Torvalds out: 38351da177e4SLinus Torvalds return status; 38361da177e4SLinus Torvalds } 38371da177e4SLinus Torvalds 38381da177e4SLinus Torvalds /* 38391da177e4SLinus Torvalds * Decode SYMLINK response 38401da177e4SLinus Torvalds */ 38418687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 38421da177e4SLinus Torvalds { 38431da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 38441da177e4SLinus Torvalds } 38451da177e4SLinus Torvalds 38461da177e4SLinus Torvalds /* 38471da177e4SLinus Torvalds * Decode GETATTR response 38481da177e4SLinus Torvalds */ 38498687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 38501da177e4SLinus Torvalds { 38511da177e4SLinus Torvalds struct xdr_stream xdr; 38521da177e4SLinus Torvalds struct compound_hdr hdr; 38531da177e4SLinus Torvalds int status; 38541da177e4SLinus Torvalds 38551da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38561da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 38571da177e4SLinus Torvalds if (status) 38581da177e4SLinus Torvalds goto out; 38591da177e4SLinus Torvalds status = decode_putfh(&xdr); 38601da177e4SLinus Torvalds if (status) 38611da177e4SLinus Torvalds goto out; 38621da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38631da177e4SLinus Torvalds out: 38641da177e4SLinus Torvalds return status; 38651da177e4SLinus Torvalds 38661da177e4SLinus Torvalds } 38671da177e4SLinus Torvalds 386823ec6965SJ. Bruce Fields /* 386923ec6965SJ. Bruce Fields * Encode an SETACL request 387023ec6965SJ. Bruce Fields */ 387123ec6965SJ. Bruce Fields static int 38728687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 387323ec6965SJ. Bruce Fields { 387423ec6965SJ. Bruce Fields struct xdr_stream xdr; 387523ec6965SJ. Bruce Fields struct compound_hdr hdr = { 387623ec6965SJ. Bruce Fields .nops = 2, 387723ec6965SJ. Bruce Fields }; 387823ec6965SJ. Bruce Fields int status; 387923ec6965SJ. Bruce Fields 388023ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 388123ec6965SJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 388223ec6965SJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 388323ec6965SJ. Bruce Fields if (status) 388423ec6965SJ. Bruce Fields goto out; 388523ec6965SJ. Bruce Fields status = encode_setacl(&xdr, args); 388623ec6965SJ. Bruce Fields out: 388723ec6965SJ. Bruce Fields return status; 388823ec6965SJ. Bruce Fields } 388923ec6965SJ. Bruce Fields /* 389023ec6965SJ. Bruce Fields * Decode SETACL response 389123ec6965SJ. Bruce Fields */ 389223ec6965SJ. Bruce Fields static int 38938687b63aSAl Viro nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) 389423ec6965SJ. Bruce Fields { 389523ec6965SJ. Bruce Fields struct xdr_stream xdr; 389623ec6965SJ. Bruce Fields struct compound_hdr hdr; 389723ec6965SJ. Bruce Fields int status; 389823ec6965SJ. Bruce Fields 389923ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 390023ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 390123ec6965SJ. Bruce Fields if (status) 390223ec6965SJ. Bruce Fields goto out; 390323ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 390423ec6965SJ. Bruce Fields if (status) 390523ec6965SJ. Bruce Fields goto out; 390623ec6965SJ. Bruce Fields status = decode_setattr(&xdr, res); 390723ec6965SJ. Bruce Fields out: 390823ec6965SJ. Bruce Fields return status; 390923ec6965SJ. Bruce Fields } 39101da177e4SLinus Torvalds 39111da177e4SLinus Torvalds /* 3912029d105eSJ. Bruce Fields * Decode GETACL response 3913029d105eSJ. Bruce Fields */ 3914029d105eSJ. Bruce Fields static int 39158687b63aSAl Viro nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) 3916029d105eSJ. Bruce Fields { 3917029d105eSJ. Bruce Fields struct xdr_stream xdr; 3918029d105eSJ. Bruce Fields struct compound_hdr hdr; 3919029d105eSJ. Bruce Fields int status; 3920029d105eSJ. Bruce Fields 3921029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3922029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 3923029d105eSJ. Bruce Fields if (status) 3924029d105eSJ. Bruce Fields goto out; 3925029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 3926029d105eSJ. Bruce Fields if (status) 3927029d105eSJ. Bruce Fields goto out; 3928029d105eSJ. Bruce Fields status = decode_getacl(&xdr, rqstp, acl_len); 3929029d105eSJ. Bruce Fields 3930029d105eSJ. Bruce Fields out: 3931029d105eSJ. Bruce Fields return status; 3932029d105eSJ. Bruce Fields } 3933029d105eSJ. Bruce Fields 3934029d105eSJ. Bruce Fields /* 39351da177e4SLinus Torvalds * Decode CLOSE response 39361da177e4SLinus Torvalds */ 39378687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 39381da177e4SLinus Torvalds { 39391da177e4SLinus Torvalds struct xdr_stream xdr; 39401da177e4SLinus Torvalds struct compound_hdr hdr; 39411da177e4SLinus Torvalds int status; 39421da177e4SLinus Torvalds 39431da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39441da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39451da177e4SLinus Torvalds if (status) 39461da177e4SLinus Torvalds goto out; 39471da177e4SLinus Torvalds status = decode_putfh(&xdr); 39481da177e4SLinus Torvalds if (status) 39491da177e4SLinus Torvalds goto out; 39501da177e4SLinus Torvalds status = decode_close(&xdr, res); 3951516a6af6STrond Myklebust if (status != 0) 3952516a6af6STrond Myklebust goto out; 3953516a6af6STrond Myklebust /* 3954516a6af6STrond Myklebust * Note: Server may do delete on close for this file 3955516a6af6STrond Myklebust * in which case the getattr call will fail with 3956516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 3957516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 3958516a6af6STrond Myklebust */ 3959516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 39601da177e4SLinus Torvalds out: 39611da177e4SLinus Torvalds return status; 39621da177e4SLinus Torvalds } 39631da177e4SLinus Torvalds 39641da177e4SLinus Torvalds /* 39651da177e4SLinus Torvalds * Decode OPEN response 39661da177e4SLinus Torvalds */ 39678687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 39681da177e4SLinus Torvalds { 39691da177e4SLinus Torvalds struct xdr_stream xdr; 39701da177e4SLinus Torvalds struct compound_hdr hdr; 39711da177e4SLinus Torvalds int status; 39721da177e4SLinus Torvalds 39731da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39741da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39751da177e4SLinus Torvalds if (status) 39761da177e4SLinus Torvalds goto out; 39771da177e4SLinus Torvalds status = decode_putfh(&xdr); 39781da177e4SLinus Torvalds if (status) 39791da177e4SLinus Torvalds goto out; 398056ae19f3STrond Myklebust status = decode_savefh(&xdr); 398156ae19f3STrond Myklebust if (status) 398256ae19f3STrond Myklebust goto out; 39831da177e4SLinus Torvalds status = decode_open(&xdr, res); 39841da177e4SLinus Torvalds if (status) 39851da177e4SLinus Torvalds goto out; 39861da177e4SLinus Torvalds status = decode_getfh(&xdr, &res->fh); 39871da177e4SLinus Torvalds if (status) 39881da177e4SLinus Torvalds goto out; 398956ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 399056ae19f3STrond Myklebust goto out; 399156ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 399256ae19f3STrond Myklebust goto out; 399356ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 39941da177e4SLinus Torvalds out: 39951da177e4SLinus Torvalds return status; 39961da177e4SLinus Torvalds } 39971da177e4SLinus Torvalds 39981da177e4SLinus Torvalds /* 39991da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 40001da177e4SLinus Torvalds */ 40018687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 40021da177e4SLinus Torvalds { 40031da177e4SLinus Torvalds struct xdr_stream xdr; 40041da177e4SLinus Torvalds struct compound_hdr hdr; 40051da177e4SLinus Torvalds int status; 40061da177e4SLinus Torvalds 40071da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40081da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40091da177e4SLinus Torvalds if (status) 40101da177e4SLinus Torvalds goto out; 40111da177e4SLinus Torvalds status = decode_putfh(&xdr); 40121da177e4SLinus Torvalds if (status) 40131da177e4SLinus Torvalds goto out; 40141da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 40151da177e4SLinus Torvalds out: 40161da177e4SLinus Torvalds return status; 40171da177e4SLinus Torvalds } 40181da177e4SLinus Torvalds 40191da177e4SLinus Torvalds /* 40201da177e4SLinus Torvalds * Decode OPEN response 40211da177e4SLinus Torvalds */ 40228687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 40231da177e4SLinus Torvalds { 40241da177e4SLinus Torvalds struct xdr_stream xdr; 40251da177e4SLinus Torvalds struct compound_hdr hdr; 40261da177e4SLinus Torvalds int status; 40271da177e4SLinus Torvalds 40281da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40291da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40301da177e4SLinus Torvalds if (status) 40311da177e4SLinus Torvalds goto out; 40321da177e4SLinus Torvalds status = decode_putfh(&xdr); 40331da177e4SLinus Torvalds if (status) 40341da177e4SLinus Torvalds goto out; 40351da177e4SLinus Torvalds status = decode_open(&xdr, res); 4036864472e9STrond Myklebust if (status) 4037864472e9STrond Myklebust goto out; 4038864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 40391da177e4SLinus Torvalds out: 40401da177e4SLinus Torvalds return status; 40411da177e4SLinus Torvalds } 40421da177e4SLinus Torvalds 40431da177e4SLinus Torvalds /* 40441da177e4SLinus Torvalds * Decode SETATTR response 40451da177e4SLinus Torvalds */ 40468687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 40471da177e4SLinus Torvalds { 40481da177e4SLinus Torvalds struct xdr_stream xdr; 40491da177e4SLinus Torvalds struct compound_hdr hdr; 40501da177e4SLinus Torvalds int status; 40511da177e4SLinus Torvalds 40521da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40531da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40541da177e4SLinus Torvalds if (status) 40551da177e4SLinus Torvalds goto out; 40561da177e4SLinus Torvalds status = decode_putfh(&xdr); 40571da177e4SLinus Torvalds if (status) 40581da177e4SLinus Torvalds goto out; 40591da177e4SLinus Torvalds status = decode_setattr(&xdr, res); 40601da177e4SLinus Torvalds if (status) 40611da177e4SLinus Torvalds goto out; 40621da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 40631da177e4SLinus Torvalds if (status == NFS4ERR_DELAY) 40641da177e4SLinus Torvalds status = 0; 40651da177e4SLinus Torvalds out: 40661da177e4SLinus Torvalds return status; 40671da177e4SLinus Torvalds } 40681da177e4SLinus Torvalds 40691da177e4SLinus Torvalds /* 40701da177e4SLinus Torvalds * Decode LOCK response 40711da177e4SLinus Torvalds */ 40728687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 40731da177e4SLinus Torvalds { 40741da177e4SLinus Torvalds struct xdr_stream xdr; 40751da177e4SLinus Torvalds struct compound_hdr hdr; 40761da177e4SLinus Torvalds int status; 40771da177e4SLinus Torvalds 40781da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40791da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40801da177e4SLinus Torvalds if (status) 40811da177e4SLinus Torvalds goto out; 40821da177e4SLinus Torvalds status = decode_putfh(&xdr); 40831da177e4SLinus Torvalds if (status) 40841da177e4SLinus Torvalds goto out; 40851da177e4SLinus Torvalds status = decode_lock(&xdr, res); 40861da177e4SLinus Torvalds out: 40871da177e4SLinus Torvalds return status; 40881da177e4SLinus Torvalds } 40891da177e4SLinus Torvalds 40901da177e4SLinus Torvalds /* 40911da177e4SLinus Torvalds * Decode LOCKT response 40921da177e4SLinus Torvalds */ 40938687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 40941da177e4SLinus Torvalds { 40951da177e4SLinus Torvalds struct xdr_stream xdr; 40961da177e4SLinus Torvalds struct compound_hdr hdr; 40971da177e4SLinus Torvalds int status; 40981da177e4SLinus Torvalds 40991da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41001da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41011da177e4SLinus Torvalds if (status) 41021da177e4SLinus Torvalds goto out; 41031da177e4SLinus Torvalds status = decode_putfh(&xdr); 41041da177e4SLinus Torvalds if (status) 41051da177e4SLinus Torvalds goto out; 41061da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 41071da177e4SLinus Torvalds out: 41081da177e4SLinus Torvalds return status; 41091da177e4SLinus Torvalds } 41101da177e4SLinus Torvalds 41111da177e4SLinus Torvalds /* 41121da177e4SLinus Torvalds * Decode LOCKU response 41131da177e4SLinus Torvalds */ 41148687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 41151da177e4SLinus Torvalds { 41161da177e4SLinus Torvalds struct xdr_stream xdr; 41171da177e4SLinus Torvalds struct compound_hdr hdr; 41181da177e4SLinus Torvalds int status; 41191da177e4SLinus Torvalds 41201da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41211da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41221da177e4SLinus Torvalds if (status) 41231da177e4SLinus Torvalds goto out; 41241da177e4SLinus Torvalds status = decode_putfh(&xdr); 41251da177e4SLinus Torvalds if (status) 41261da177e4SLinus Torvalds goto out; 41271da177e4SLinus Torvalds status = decode_locku(&xdr, res); 41281da177e4SLinus Torvalds out: 41291da177e4SLinus Torvalds return status; 41301da177e4SLinus Torvalds } 41311da177e4SLinus Torvalds 41321da177e4SLinus Torvalds /* 41331da177e4SLinus Torvalds * Decode READLINK response 41341da177e4SLinus Torvalds */ 41358687b63aSAl Viro static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) 41361da177e4SLinus Torvalds { 41371da177e4SLinus Torvalds struct xdr_stream xdr; 41381da177e4SLinus Torvalds struct compound_hdr hdr; 41391da177e4SLinus Torvalds int status; 41401da177e4SLinus Torvalds 41411da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41421da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41431da177e4SLinus Torvalds if (status) 41441da177e4SLinus Torvalds goto out; 41451da177e4SLinus Torvalds status = decode_putfh(&xdr); 41461da177e4SLinus Torvalds if (status) 41471da177e4SLinus Torvalds goto out; 41481da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 41491da177e4SLinus Torvalds out: 41501da177e4SLinus Torvalds return status; 41511da177e4SLinus Torvalds } 41521da177e4SLinus Torvalds 41531da177e4SLinus Torvalds /* 41541da177e4SLinus Torvalds * Decode READDIR response 41551da177e4SLinus Torvalds */ 41568687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *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_readdir(&xdr, rqstp, res); 41701da177e4SLinus Torvalds out: 41711da177e4SLinus Torvalds return status; 41721da177e4SLinus Torvalds } 41731da177e4SLinus Torvalds 41741da177e4SLinus Torvalds /* 41751da177e4SLinus Torvalds * Decode Read response 41761da177e4SLinus Torvalds */ 41778687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 41781da177e4SLinus Torvalds { 41791da177e4SLinus Torvalds struct xdr_stream xdr; 41801da177e4SLinus Torvalds struct compound_hdr hdr; 41811da177e4SLinus Torvalds int status; 41821da177e4SLinus Torvalds 41831da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41841da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41851da177e4SLinus Torvalds if (status) 41861da177e4SLinus Torvalds goto out; 41871da177e4SLinus Torvalds status = decode_putfh(&xdr); 41881da177e4SLinus Torvalds if (status) 41891da177e4SLinus Torvalds goto out; 41901da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 41911da177e4SLinus Torvalds if (!status) 41921da177e4SLinus Torvalds status = res->count; 41931da177e4SLinus Torvalds out: 41941da177e4SLinus Torvalds return status; 41951da177e4SLinus Torvalds } 41961da177e4SLinus Torvalds 41971da177e4SLinus Torvalds /* 41981da177e4SLinus Torvalds * Decode WRITE response 41991da177e4SLinus Torvalds */ 42008687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 42011da177e4SLinus Torvalds { 42021da177e4SLinus Torvalds struct xdr_stream xdr; 42031da177e4SLinus Torvalds struct compound_hdr hdr; 42041da177e4SLinus Torvalds int status; 42051da177e4SLinus Torvalds 42061da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42071da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42081da177e4SLinus Torvalds if (status) 42091da177e4SLinus Torvalds goto out; 42101da177e4SLinus Torvalds status = decode_putfh(&xdr); 42111da177e4SLinus Torvalds if (status) 42121da177e4SLinus Torvalds goto out; 42131da177e4SLinus Torvalds status = decode_write(&xdr, res); 42144f9838c7STrond Myklebust if (status) 42154f9838c7STrond Myklebust goto out; 42164f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 42171da177e4SLinus Torvalds if (!status) 42181da177e4SLinus Torvalds status = res->count; 42191da177e4SLinus Torvalds out: 42201da177e4SLinus Torvalds return status; 42211da177e4SLinus Torvalds } 42221da177e4SLinus Torvalds 42231da177e4SLinus Torvalds /* 42241da177e4SLinus Torvalds * Decode COMMIT response 42251da177e4SLinus Torvalds */ 42268687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 42271da177e4SLinus Torvalds { 42281da177e4SLinus Torvalds struct xdr_stream xdr; 42291da177e4SLinus Torvalds struct compound_hdr hdr; 42301da177e4SLinus Torvalds int status; 42311da177e4SLinus Torvalds 42321da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42331da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42341da177e4SLinus Torvalds if (status) 42351da177e4SLinus Torvalds goto out; 42361da177e4SLinus Torvalds status = decode_putfh(&xdr); 42371da177e4SLinus Torvalds if (status) 42381da177e4SLinus Torvalds goto out; 42391da177e4SLinus Torvalds status = decode_commit(&xdr, res); 42404f9838c7STrond Myklebust if (status) 42414f9838c7STrond Myklebust goto out; 42424f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 42431da177e4SLinus Torvalds out: 42441da177e4SLinus Torvalds return status; 42451da177e4SLinus Torvalds } 42461da177e4SLinus Torvalds 42471da177e4SLinus Torvalds /* 42481da177e4SLinus Torvalds * FSINFO request 42491da177e4SLinus Torvalds */ 42508687b63aSAl Viro static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 42511da177e4SLinus Torvalds { 42521da177e4SLinus Torvalds struct xdr_stream xdr; 42531da177e4SLinus Torvalds struct compound_hdr hdr; 42541da177e4SLinus Torvalds int status; 42551da177e4SLinus Torvalds 42561da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 42571da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42581da177e4SLinus Torvalds if (!status) 42591da177e4SLinus Torvalds status = decode_putfh(&xdr); 42601da177e4SLinus Torvalds if (!status) 42611da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 42621da177e4SLinus Torvalds if (!status) 42630a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 42641da177e4SLinus Torvalds return status; 42651da177e4SLinus Torvalds } 42661da177e4SLinus Torvalds 42671da177e4SLinus Torvalds /* 42681da177e4SLinus Torvalds * PATHCONF request 42691da177e4SLinus Torvalds */ 42708687b63aSAl Viro static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) 42711da177e4SLinus Torvalds { 42721da177e4SLinus Torvalds struct xdr_stream xdr; 42731da177e4SLinus Torvalds struct compound_hdr hdr; 42741da177e4SLinus Torvalds int status; 42751da177e4SLinus Torvalds 42761da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 42771da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42781da177e4SLinus Torvalds if (!status) 42791da177e4SLinus Torvalds status = decode_putfh(&xdr); 42801da177e4SLinus Torvalds if (!status) 42811da177e4SLinus Torvalds status = decode_pathconf(&xdr, pathconf); 42821da177e4SLinus Torvalds return status; 42831da177e4SLinus Torvalds } 42841da177e4SLinus Torvalds 42851da177e4SLinus Torvalds /* 42861da177e4SLinus Torvalds * STATFS request 42871da177e4SLinus Torvalds */ 42888687b63aSAl Viro static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) 42891da177e4SLinus Torvalds { 42901da177e4SLinus Torvalds struct xdr_stream xdr; 42911da177e4SLinus Torvalds struct compound_hdr hdr; 42921da177e4SLinus Torvalds int status; 42931da177e4SLinus Torvalds 42941da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 42951da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42961da177e4SLinus Torvalds if (!status) 42971da177e4SLinus Torvalds status = decode_putfh(&xdr); 42981da177e4SLinus Torvalds if (!status) 42991da177e4SLinus Torvalds status = decode_statfs(&xdr, fsstat); 43001da177e4SLinus Torvalds return status; 43011da177e4SLinus Torvalds } 43021da177e4SLinus Torvalds 43031da177e4SLinus Torvalds /* 43041da177e4SLinus Torvalds * GETATTR_BITMAP request 43051da177e4SLinus Torvalds */ 43068687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 43071da177e4SLinus Torvalds { 43081da177e4SLinus Torvalds struct xdr_stream xdr; 43091da177e4SLinus Torvalds struct compound_hdr hdr; 43101da177e4SLinus Torvalds int status; 43111da177e4SLinus Torvalds 43121da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43131da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 43141da177e4SLinus Torvalds goto out; 43151da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 43161da177e4SLinus Torvalds goto out; 43171da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 43181da177e4SLinus Torvalds out: 43191da177e4SLinus Torvalds return status; 43201da177e4SLinus Torvalds } 43211da177e4SLinus Torvalds 43221da177e4SLinus Torvalds /* 43231da177e4SLinus Torvalds * Decode RENEW response 43241da177e4SLinus Torvalds */ 43258687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 43261da177e4SLinus Torvalds { 43271da177e4SLinus Torvalds struct xdr_stream xdr; 43281da177e4SLinus Torvalds struct compound_hdr hdr; 43291da177e4SLinus Torvalds int status; 43301da177e4SLinus Torvalds 43311da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43321da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43331da177e4SLinus Torvalds if (!status) 43341da177e4SLinus Torvalds status = decode_renew(&xdr); 43351da177e4SLinus Torvalds return status; 43361da177e4SLinus Torvalds } 43371da177e4SLinus Torvalds 43381da177e4SLinus Torvalds /* 43391da177e4SLinus Torvalds * a SETCLIENTID request 43401da177e4SLinus Torvalds */ 43418687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 4342adfa6f98SDavid Howells struct nfs_client *clp) 43431da177e4SLinus Torvalds { 43441da177e4SLinus Torvalds struct xdr_stream xdr; 43451da177e4SLinus Torvalds struct compound_hdr hdr; 43461da177e4SLinus Torvalds int status; 43471da177e4SLinus Torvalds 43481da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43491da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43501da177e4SLinus Torvalds if (!status) 43511da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 43521da177e4SLinus Torvalds if (!status) 43530a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 43541da177e4SLinus Torvalds return status; 43551da177e4SLinus Torvalds } 43561da177e4SLinus Torvalds 43571da177e4SLinus Torvalds /* 43581da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 43591da177e4SLinus Torvalds */ 43608687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(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_setclientid_confirm(&xdr); 43701da177e4SLinus Torvalds if (!status) 43711da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 43721da177e4SLinus Torvalds if (!status) 43731da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 43741da177e4SLinus Torvalds if (!status) 43750a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 43761da177e4SLinus Torvalds return status; 43771da177e4SLinus Torvalds } 43781da177e4SLinus Torvalds 43791da177e4SLinus Torvalds /* 43801da177e4SLinus Torvalds * DELEGRETURN request 43811da177e4SLinus Torvalds */ 43828687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 43831da177e4SLinus Torvalds { 43841da177e4SLinus Torvalds struct xdr_stream xdr; 43851da177e4SLinus Torvalds struct compound_hdr hdr; 43861da177e4SLinus Torvalds int status; 43871da177e4SLinus Torvalds 43881da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43891da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 4390fa178f29STrond Myklebust if (status != 0) 4391fa178f29STrond Myklebust goto out; 43921da177e4SLinus Torvalds status = decode_putfh(&xdr); 4393fa178f29STrond Myklebust if (status != 0) 4394fa178f29STrond Myklebust goto out; 43951da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 4396fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 4397fa178f29STrond Myklebust out: 43981da177e4SLinus Torvalds return status; 43991da177e4SLinus Torvalds } 44001da177e4SLinus Torvalds 4401683b57b4STrond Myklebust /* 4402683b57b4STrond Myklebust * FS_LOCATIONS request 4403683b57b4STrond Myklebust */ 44048687b63aSAl Viro static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) 4405683b57b4STrond Myklebust { 4406683b57b4STrond Myklebust struct xdr_stream xdr; 4407683b57b4STrond Myklebust struct compound_hdr hdr; 4408683b57b4STrond Myklebust int status; 4409683b57b4STrond Myklebust 4410683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4411683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 4412683b57b4STrond Myklebust if (status != 0) 4413683b57b4STrond Myklebust goto out; 4414683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 4415683b57b4STrond Myklebust goto out; 4416683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 4417683b57b4STrond Myklebust goto out; 4418683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 4419683b57b4STrond Myklebust status = decode_getfattr(&xdr, &res->fattr, res->server); 4420683b57b4STrond Myklebust out: 4421683b57b4STrond Myklebust return status; 4422683b57b4STrond Myklebust } 4423683b57b4STrond Myklebust 44241da177e4SLinus Torvalds uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus) 44251da177e4SLinus Torvalds { 44261da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 44271da177e4SLinus Torvalds uint32_t len; 44281da177e4SLinus Torvalds 44291da177e4SLinus Torvalds if (!*p++) { 44301da177e4SLinus Torvalds if (!*p) 44311da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 44321da177e4SLinus Torvalds entry->eof = 1; 44331da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 44341da177e4SLinus Torvalds } 44351da177e4SLinus Torvalds 44361da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 44371da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 44381da177e4SLinus Torvalds entry->len = ntohl(*p++); 44391da177e4SLinus Torvalds entry->name = (const char *) p; 44401da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 44411da177e4SLinus Torvalds 44421da177e4SLinus Torvalds /* 44431da177e4SLinus Torvalds * In case the server doesn't return an inode number, 44441da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 44451da177e4SLinus Torvalds * since glibc seems to choke on it...) 44461da177e4SLinus Torvalds */ 44471da177e4SLinus Torvalds entry->ino = 1; 44481da177e4SLinus Torvalds 44491da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 44501da177e4SLinus Torvalds if (len-- > 0) { 44511da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 44521da177e4SLinus Torvalds if (len-- > 0) { 44531da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 44541da177e4SLinus Torvalds p += len; 44551da177e4SLinus Torvalds } 44561da177e4SLinus Torvalds } 44571da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 44581da177e4SLinus Torvalds if (len > 0) { 445997d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 446097d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 446197d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 446297d312d0SManoj Naik p++; 446397d312d0SManoj Naik len--; 446497d312d0SManoj Naik } 44651da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 44661da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 44671da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 44681da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 44691da177e4SLinus Torvalds p += len; 44701da177e4SLinus Torvalds } 44711da177e4SLinus Torvalds 44721da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 44731da177e4SLinus Torvalds return p; 44741da177e4SLinus Torvalds } 44751da177e4SLinus Torvalds 44761da177e4SLinus Torvalds /* 44771da177e4SLinus Torvalds * We need to translate between nfs status return values and 44781da177e4SLinus Torvalds * the local errno values which may not be the same. 44791da177e4SLinus Torvalds */ 44801da177e4SLinus Torvalds static struct { 44811da177e4SLinus Torvalds int stat; 44821da177e4SLinus Torvalds int errno; 44831da177e4SLinus Torvalds } nfs_errtbl[] = { 44841da177e4SLinus Torvalds { NFS4_OK, 0 }, 44851da177e4SLinus Torvalds { NFS4ERR_PERM, EPERM }, 44861da177e4SLinus Torvalds { NFS4ERR_NOENT, ENOENT }, 44871da177e4SLinus Torvalds { NFS4ERR_IO, errno_NFSERR_IO }, 44881da177e4SLinus Torvalds { NFS4ERR_NXIO, ENXIO }, 44891da177e4SLinus Torvalds { NFS4ERR_ACCESS, EACCES }, 44901da177e4SLinus Torvalds { NFS4ERR_EXIST, EEXIST }, 44911da177e4SLinus Torvalds { NFS4ERR_XDEV, EXDEV }, 44921da177e4SLinus Torvalds { NFS4ERR_NOTDIR, ENOTDIR }, 44931da177e4SLinus Torvalds { NFS4ERR_ISDIR, EISDIR }, 44941da177e4SLinus Torvalds { NFS4ERR_INVAL, EINVAL }, 44951da177e4SLinus Torvalds { NFS4ERR_FBIG, EFBIG }, 44961da177e4SLinus Torvalds { NFS4ERR_NOSPC, ENOSPC }, 44971da177e4SLinus Torvalds { NFS4ERR_ROFS, EROFS }, 44981da177e4SLinus Torvalds { NFS4ERR_MLINK, EMLINK }, 44991da177e4SLinus Torvalds { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, 45001da177e4SLinus Torvalds { NFS4ERR_NOTEMPTY, ENOTEMPTY }, 45011da177e4SLinus Torvalds { NFS4ERR_DQUOT, EDQUOT }, 45021da177e4SLinus Torvalds { NFS4ERR_STALE, ESTALE }, 45031da177e4SLinus Torvalds { NFS4ERR_BADHANDLE, EBADHANDLE }, 45046ebf3656SManoj Naik { NFS4ERR_BADOWNER, EINVAL }, 45056ebf3656SManoj Naik { NFS4ERR_BADNAME, EINVAL }, 45061da177e4SLinus Torvalds { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, 45071da177e4SLinus Torvalds { NFS4ERR_NOTSUPP, ENOTSUPP }, 45081da177e4SLinus Torvalds { NFS4ERR_TOOSMALL, ETOOSMALL }, 45091da177e4SLinus Torvalds { NFS4ERR_SERVERFAULT, ESERVERFAULT }, 45101da177e4SLinus Torvalds { NFS4ERR_BADTYPE, EBADTYPE }, 45111da177e4SLinus Torvalds { NFS4ERR_LOCKED, EAGAIN }, 45121da177e4SLinus Torvalds { NFS4ERR_RESOURCE, EREMOTEIO }, 45131da177e4SLinus Torvalds { NFS4ERR_SYMLINK, ELOOP }, 45141da177e4SLinus Torvalds { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, 45151da177e4SLinus Torvalds { NFS4ERR_DEADLOCK, EDEADLK }, 45161da177e4SLinus Torvalds { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs 45171da177e4SLinus Torvalds * to be handled by a 45181da177e4SLinus Torvalds * middle-layer. 45191da177e4SLinus Torvalds */ 45201da177e4SLinus Torvalds { -1, EIO } 45211da177e4SLinus Torvalds }; 45221da177e4SLinus Torvalds 45231da177e4SLinus Torvalds /* 45241da177e4SLinus Torvalds * Convert an NFS error code to a local one. 45251da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 45261da177e4SLinus Torvalds */ 45271da177e4SLinus Torvalds static int 45280a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 45291da177e4SLinus Torvalds { 45301da177e4SLinus Torvalds int i; 45311da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 45321da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 45331da177e4SLinus Torvalds return nfs_errtbl[i].errno; 45341da177e4SLinus Torvalds } 45351da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 45361da177e4SLinus Torvalds /* The server is looney tunes. */ 45371da177e4SLinus Torvalds return ESERVERFAULT; 45381da177e4SLinus Torvalds } 45391da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 45401da177e4SLinus Torvalds * handle it. 45411da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 45421da177e4SLinus Torvalds * not conflict with native Linux error codes. 45431da177e4SLinus Torvalds */ 45441da177e4SLinus Torvalds return stat; 45451da177e4SLinus Torvalds } 45461da177e4SLinus Torvalds 45471da177e4SLinus Torvalds #ifndef MAX 45481da177e4SLinus Torvalds # define MAX(a, b) (((a) > (b))? (a) : (b)) 45491da177e4SLinus Torvalds #endif 45501da177e4SLinus Torvalds 45511da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 45521da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 45531da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 45541da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 45551da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 45561da177e4SLinus Torvalds .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \ 4557cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 4558cc0175c1SChuck Lever .p_name = #proc, \ 45591da177e4SLinus Torvalds } 45601da177e4SLinus Torvalds 45611da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 45621da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 45631da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 45641da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 45651da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 45661da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 45671da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 45681da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 45691da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 45701da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 45711da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 45721da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 45731da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 45741da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 45751da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 45761da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 45771da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 45781da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 45791da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 45801da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 45811da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 45821da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 45831da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 45841da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 45851da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 45861da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 45871da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 45881da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 45891da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 45901da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 45911da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 45921da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4593029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 459423ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 4595683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 45961da177e4SLinus Torvalds }; 45971da177e4SLinus Torvalds 45981da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 45991da177e4SLinus Torvalds .number = 4, 4600e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 46011da177e4SLinus Torvalds .procs = nfs4_procedures 46021da177e4SLinus Torvalds }; 46031da177e4SLinus Torvalds 46041da177e4SLinus Torvalds /* 46051da177e4SLinus Torvalds * Local variables: 46061da177e4SLinus Torvalds * c-basic-offset: 8 46071da177e4SLinus Torvalds * End: 46081da177e4SLinus Torvalds */ 4609