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 611da177e4SLinus Torvalds static int nfs_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 + \ 1311da177e4SLinus Torvalds nfs4_path_maxsz + \ 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 + \ 3951da177e4SLinus Torvalds encode_delegreturn_maxsz) 3961da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 3971da177e4SLinus Torvalds decode_delegreturn_maxsz) 398029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 399029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 400029d105eSJ. Bruce Fields encode_getattr_maxsz) 401029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 402029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 403029d105eSJ. Bruce Fields op_decode_hdr_maxsz + \ 404029d105eSJ. Bruce Fields nfs4_fattr_bitmap_maxsz + 1) 40523ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 40623ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 40723ec6965SJ. Bruce Fields op_encode_hdr_maxsz + 4 + \ 40823ec6965SJ. Bruce Fields nfs4_fattr_bitmap_maxsz + 1) 40923ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 41023ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 41123ec6965SJ. Bruce Fields op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 4121da177e4SLinus Torvalds 4131da177e4SLinus Torvalds static struct { 4141da177e4SLinus Torvalds unsigned int mode; 4151da177e4SLinus Torvalds unsigned int nfs2type; 4161da177e4SLinus Torvalds } nfs_type2fmt[] = { 4171da177e4SLinus Torvalds { 0, NFNON }, 4181da177e4SLinus Torvalds { S_IFREG, NFREG }, 4191da177e4SLinus Torvalds { S_IFDIR, NFDIR }, 4201da177e4SLinus Torvalds { S_IFBLK, NFBLK }, 4211da177e4SLinus Torvalds { S_IFCHR, NFCHR }, 4221da177e4SLinus Torvalds { S_IFLNK, NFLNK }, 4231da177e4SLinus Torvalds { S_IFSOCK, NFSOCK }, 4241da177e4SLinus Torvalds { S_IFIFO, NFFIFO }, 4251da177e4SLinus Torvalds { 0, NFNON }, 4261da177e4SLinus Torvalds { 0, NFNON }, 4271da177e4SLinus Torvalds }; 4281da177e4SLinus Torvalds 4291da177e4SLinus Torvalds struct compound_hdr { 4301da177e4SLinus Torvalds int32_t status; 4311da177e4SLinus Torvalds uint32_t nops; 4321da177e4SLinus Torvalds uint32_t taglen; 4331da177e4SLinus Torvalds char * tag; 4341da177e4SLinus Torvalds }; 4351da177e4SLinus Torvalds 4361da177e4SLinus Torvalds /* 4371da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 4381da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 4391da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 4401da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 4411da177e4SLinus Torvalds * 4421da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 4431da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 4441da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 4451da177e4SLinus Torvalds */ 4461da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 4471da177e4SLinus Torvalds #define WRITE64(n) do { \ 4481da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 4491da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 4501da177e4SLinus Torvalds } while (0) 4511da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 4521da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 4531da177e4SLinus Torvalds } while (0) 4541da177e4SLinus Torvalds 4551da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 4561da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 4571da177e4SLinus Torvalds if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \ 4581da177e4SLinus Torvalds BUG_ON(!p); \ 4591da177e4SLinus Torvalds } while (0) 4601da177e4SLinus Torvalds 4611da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 4621da177e4SLinus Torvalds { 4631da177e4SLinus Torvalds uint32_t *p; 4641da177e4SLinus Torvalds 4651da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 4661da177e4SLinus Torvalds BUG_ON(p == NULL); 4671da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 4681da177e4SLinus Torvalds } 4691da177e4SLinus Torvalds 4701da177e4SLinus Torvalds static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 4711da177e4SLinus Torvalds { 4721da177e4SLinus Torvalds uint32_t *p; 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 4751da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 4761da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 4771da177e4SLinus Torvalds WRITE32(hdr->taglen); 4781da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 4791da177e4SLinus Torvalds WRITE32(NFS4_MINOR_VERSION); 4801da177e4SLinus Torvalds WRITE32(hdr->nops); 4811da177e4SLinus Torvalds return 0; 4821da177e4SLinus Torvalds } 4831da177e4SLinus Torvalds 4841da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 4851da177e4SLinus Torvalds { 4861da177e4SLinus Torvalds uint32_t *p; 4871da177e4SLinus Torvalds 4881da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 4891da177e4SLinus Torvalds BUG_ON(p == NULL); 4901da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 4911da177e4SLinus Torvalds } 4921da177e4SLinus Torvalds 4931da177e4SLinus Torvalds static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 4941da177e4SLinus Torvalds { 4951da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 4961da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 4971da177e4SLinus Torvalds int owner_namelen = 0; 4981da177e4SLinus Torvalds int owner_grouplen = 0; 4991da177e4SLinus Torvalds uint32_t *p; 5001da177e4SLinus Torvalds uint32_t *q; 5011da177e4SLinus Torvalds int len; 5021da177e4SLinus Torvalds uint32_t bmval0 = 0; 5031da177e4SLinus Torvalds uint32_t bmval1 = 0; 5041da177e4SLinus Torvalds int status; 5051da177e4SLinus Torvalds 5061da177e4SLinus Torvalds /* 5071da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 5081da177e4SLinus Torvalds * In the worst-case, this would be 5091da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 5101da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 51123ec6965SJ. Bruce Fields * such as owner/group. 5121da177e4SLinus Torvalds */ 5131da177e4SLinus Torvalds len = 16; 5141da177e4SLinus Torvalds 5151da177e4SLinus Torvalds /* Sigh */ 5161da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 5171da177e4SLinus Torvalds len += 8; 5181da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 5191da177e4SLinus Torvalds len += 4; 5201da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 5211da177e4SLinus Torvalds owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name); 5221da177e4SLinus Torvalds if (owner_namelen < 0) { 5231da177e4SLinus Torvalds printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n", 5241da177e4SLinus Torvalds iap->ia_uid); 5251da177e4SLinus Torvalds /* XXX */ 5261da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 5271da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 5281da177e4SLinus Torvalds /* goto out; */ 5291da177e4SLinus Torvalds } 5301da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 5311da177e4SLinus Torvalds } 5321da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 5331da177e4SLinus Torvalds owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group); 5341da177e4SLinus Torvalds if (owner_grouplen < 0) { 5351da177e4SLinus Torvalds printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n", 5361da177e4SLinus Torvalds iap->ia_gid); 5371da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 5381da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 5391da177e4SLinus Torvalds /* goto out; */ 5401da177e4SLinus Torvalds } 5411da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 5421da177e4SLinus Torvalds } 5431da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 5441da177e4SLinus Torvalds len += 16; 5451da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 5461da177e4SLinus Torvalds len += 4; 5471da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 5481da177e4SLinus Torvalds len += 16; 5491da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 5501da177e4SLinus Torvalds len += 4; 5511da177e4SLinus Torvalds RESERVE_SPACE(len); 5521da177e4SLinus Torvalds 5531da177e4SLinus Torvalds /* 5541da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 5551da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 5561da177e4SLinus Torvalds */ 5571da177e4SLinus Torvalds WRITE32(2); 5581da177e4SLinus Torvalds q = p; 5591da177e4SLinus Torvalds p += 3; 5601da177e4SLinus Torvalds 5611da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 5621da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 5631da177e4SLinus Torvalds WRITE64(iap->ia_size); 5641da177e4SLinus Torvalds } 5651da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 5661da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 5671da177e4SLinus Torvalds WRITE32(iap->ia_mode); 5681da177e4SLinus Torvalds } 5691da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 5701da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 5711da177e4SLinus Torvalds WRITE32(owner_namelen); 5721da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 5731da177e4SLinus Torvalds } 5741da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 5751da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 5761da177e4SLinus Torvalds WRITE32(owner_grouplen); 5771da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 5781da177e4SLinus Torvalds } 5791da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 5801da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 5811da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 5821da177e4SLinus Torvalds WRITE32(0); 5831da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 5841da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 5851da177e4SLinus Torvalds } 5861da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 5871da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 5881da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 5891da177e4SLinus Torvalds } 5901da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 5911da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_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_MTIME) { 5981da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 5991da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 6001da177e4SLinus Torvalds } 6011da177e4SLinus Torvalds 6021da177e4SLinus Torvalds /* 6031da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 6041da177e4SLinus Torvalds */ 6051da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 6061da177e4SLinus Torvalds printk ("encode_attr: Attr length calculation error! %u != %Zu\n", 6071da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 6081da177e4SLinus Torvalds BUG(); 6091da177e4SLinus Torvalds } 6101da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 6111da177e4SLinus Torvalds *q++ = htonl(bmval0); 6121da177e4SLinus Torvalds *q++ = htonl(bmval1); 6131da177e4SLinus Torvalds *q++ = htonl(len); 6141da177e4SLinus Torvalds 6151da177e4SLinus Torvalds status = 0; 6161da177e4SLinus Torvalds /* out: */ 6171da177e4SLinus Torvalds return status; 6181da177e4SLinus Torvalds } 6191da177e4SLinus Torvalds 6201da177e4SLinus Torvalds static int encode_access(struct xdr_stream *xdr, u32 access) 6211da177e4SLinus Torvalds { 6221da177e4SLinus Torvalds uint32_t *p; 6231da177e4SLinus Torvalds 6241da177e4SLinus Torvalds RESERVE_SPACE(8); 6251da177e4SLinus Torvalds WRITE32(OP_ACCESS); 6261da177e4SLinus Torvalds WRITE32(access); 6271da177e4SLinus Torvalds 6281da177e4SLinus Torvalds return 0; 6291da177e4SLinus Torvalds } 6301da177e4SLinus Torvalds 6311da177e4SLinus Torvalds static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 6321da177e4SLinus Torvalds { 6331da177e4SLinus Torvalds uint32_t *p; 6341da177e4SLinus Torvalds 6359512135dSTrond Myklebust RESERVE_SPACE(8+sizeof(arg->stateid->data)); 6361da177e4SLinus Torvalds WRITE32(OP_CLOSE); 637cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 6389512135dSTrond Myklebust WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); 6391da177e4SLinus Torvalds 6401da177e4SLinus Torvalds return 0; 6411da177e4SLinus Torvalds } 6421da177e4SLinus Torvalds 6431da177e4SLinus Torvalds static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) 6441da177e4SLinus Torvalds { 6451da177e4SLinus Torvalds uint32_t *p; 6461da177e4SLinus Torvalds 6471da177e4SLinus Torvalds RESERVE_SPACE(16); 6481da177e4SLinus Torvalds WRITE32(OP_COMMIT); 6491da177e4SLinus Torvalds WRITE64(args->offset); 6501da177e4SLinus Torvalds WRITE32(args->count); 6511da177e4SLinus Torvalds 6521da177e4SLinus Torvalds return 0; 6531da177e4SLinus Torvalds } 6541da177e4SLinus Torvalds 6551da177e4SLinus Torvalds static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) 6561da177e4SLinus Torvalds { 6571da177e4SLinus Torvalds uint32_t *p; 6581da177e4SLinus Torvalds 6591da177e4SLinus Torvalds RESERVE_SPACE(8); 6601da177e4SLinus Torvalds WRITE32(OP_CREATE); 6611da177e4SLinus Torvalds WRITE32(create->ftype); 6621da177e4SLinus Torvalds 6631da177e4SLinus Torvalds switch (create->ftype) { 6641da177e4SLinus Torvalds case NF4LNK: 6651da177e4SLinus Torvalds RESERVE_SPACE(4 + create->u.symlink->len); 6661da177e4SLinus Torvalds WRITE32(create->u.symlink->len); 6671da177e4SLinus Torvalds WRITEMEM(create->u.symlink->name, create->u.symlink->len); 6681da177e4SLinus Torvalds break; 6691da177e4SLinus Torvalds 6701da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 6711da177e4SLinus Torvalds RESERVE_SPACE(8); 6721da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 6731da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 6741da177e4SLinus Torvalds break; 6751da177e4SLinus Torvalds 6761da177e4SLinus Torvalds default: 6771da177e4SLinus Torvalds break; 6781da177e4SLinus Torvalds } 6791da177e4SLinus Torvalds 6801da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 6811da177e4SLinus Torvalds WRITE32(create->name->len); 6821da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 6831da177e4SLinus Torvalds 6841da177e4SLinus Torvalds return encode_attrs(xdr, create->attrs, create->server); 6851da177e4SLinus Torvalds } 6861da177e4SLinus Torvalds 6871da177e4SLinus Torvalds static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) 6881da177e4SLinus Torvalds { 6891da177e4SLinus Torvalds uint32_t *p; 6901da177e4SLinus Torvalds 6911da177e4SLinus Torvalds RESERVE_SPACE(12); 6921da177e4SLinus Torvalds WRITE32(OP_GETATTR); 6931da177e4SLinus Torvalds WRITE32(1); 6941da177e4SLinus Torvalds WRITE32(bitmap); 6951da177e4SLinus Torvalds return 0; 6961da177e4SLinus Torvalds } 6971da177e4SLinus Torvalds 6981da177e4SLinus Torvalds static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) 6991da177e4SLinus Torvalds { 7001da177e4SLinus Torvalds uint32_t *p; 7011da177e4SLinus Torvalds 7021da177e4SLinus Torvalds RESERVE_SPACE(16); 7031da177e4SLinus Torvalds WRITE32(OP_GETATTR); 7041da177e4SLinus Torvalds WRITE32(2); 7051da177e4SLinus Torvalds WRITE32(bm0); 7061da177e4SLinus Torvalds WRITE32(bm1); 7071da177e4SLinus Torvalds return 0; 7081da177e4SLinus Torvalds } 7091da177e4SLinus Torvalds 7101da177e4SLinus Torvalds static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) 7111da177e4SLinus Torvalds { 7121da177e4SLinus Torvalds return encode_getattr_two(xdr, 7131da177e4SLinus Torvalds bitmask[0] & nfs4_fattr_bitmap[0], 7141da177e4SLinus Torvalds bitmask[1] & nfs4_fattr_bitmap[1]); 7151da177e4SLinus Torvalds } 7161da177e4SLinus Torvalds 7171da177e4SLinus Torvalds static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) 7181da177e4SLinus Torvalds { 7191da177e4SLinus Torvalds return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 7201da177e4SLinus Torvalds bitmask[1] & nfs4_fsinfo_bitmap[1]); 7211da177e4SLinus Torvalds } 7221da177e4SLinus Torvalds 7231da177e4SLinus Torvalds static int encode_getfh(struct xdr_stream *xdr) 7241da177e4SLinus Torvalds { 7251da177e4SLinus Torvalds uint32_t *p; 7261da177e4SLinus Torvalds 7271da177e4SLinus Torvalds RESERVE_SPACE(4); 7281da177e4SLinus Torvalds WRITE32(OP_GETFH); 7291da177e4SLinus Torvalds 7301da177e4SLinus Torvalds return 0; 7311da177e4SLinus Torvalds } 7321da177e4SLinus Torvalds 7331da177e4SLinus Torvalds static int encode_link(struct xdr_stream *xdr, const struct qstr *name) 7341da177e4SLinus Torvalds { 7351da177e4SLinus Torvalds uint32_t *p; 7361da177e4SLinus Torvalds 7371da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 7381da177e4SLinus Torvalds WRITE32(OP_LINK); 7391da177e4SLinus Torvalds WRITE32(name->len); 7401da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 7411da177e4SLinus Torvalds 7421da177e4SLinus Torvalds return 0; 7431da177e4SLinus Torvalds } 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds /* 7461da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 7471da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 7481da177e4SLinus Torvalds */ 7491da177e4SLinus Torvalds static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg) 7501da177e4SLinus Torvalds { 7511da177e4SLinus Torvalds uint32_t *p; 7521da177e4SLinus Torvalds struct nfs_lock_opargs *opargs = arg->u.lock; 7531da177e4SLinus Torvalds 7541da177e4SLinus Torvalds RESERVE_SPACE(32); 7551da177e4SLinus Torvalds WRITE32(OP_LOCK); 7561da177e4SLinus Torvalds WRITE32(arg->type); 7571da177e4SLinus Torvalds WRITE32(opargs->reclaim); 7581da177e4SLinus Torvalds WRITE64(arg->offset); 7591da177e4SLinus Torvalds WRITE64(arg->length); 7601da177e4SLinus Torvalds WRITE32(opargs->new_lock_owner); 7611da177e4SLinus Torvalds if (opargs->new_lock_owner){ 7621da177e4SLinus Torvalds RESERVE_SPACE(40); 76306735b34STrond Myklebust WRITE32(opargs->open_seqid->sequence->counter); 76406735b34STrond Myklebust WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data)); 76506735b34STrond Myklebust WRITE32(opargs->lock_seqid->sequence->counter); 76606735b34STrond Myklebust WRITE64(opargs->lock_owner.clientid); 7671da177e4SLinus Torvalds WRITE32(4); 76806735b34STrond Myklebust WRITE32(opargs->lock_owner.id); 7691da177e4SLinus Torvalds } 7701da177e4SLinus Torvalds else { 7711da177e4SLinus Torvalds RESERVE_SPACE(20); 77206735b34STrond Myklebust WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data)); 77306735b34STrond Myklebust WRITE32(opargs->lock_seqid->sequence->counter); 7741da177e4SLinus Torvalds } 7751da177e4SLinus Torvalds 7761da177e4SLinus Torvalds return 0; 7771da177e4SLinus Torvalds } 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockargs *arg) 7801da177e4SLinus Torvalds { 7811da177e4SLinus Torvalds uint32_t *p; 7821da177e4SLinus Torvalds struct nfs_lowner *opargs = arg->u.lockt; 7831da177e4SLinus Torvalds 7841da177e4SLinus Torvalds RESERVE_SPACE(40); 7851da177e4SLinus Torvalds WRITE32(OP_LOCKT); 7861da177e4SLinus Torvalds WRITE32(arg->type); 7871da177e4SLinus Torvalds WRITE64(arg->offset); 7881da177e4SLinus Torvalds WRITE64(arg->length); 7891da177e4SLinus Torvalds WRITE64(opargs->clientid); 7901da177e4SLinus Torvalds WRITE32(4); 7911da177e4SLinus Torvalds WRITE32(opargs->id); 7921da177e4SLinus Torvalds 7931da177e4SLinus Torvalds return 0; 7941da177e4SLinus Torvalds } 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg) 7971da177e4SLinus Torvalds { 7981da177e4SLinus Torvalds uint32_t *p; 7991da177e4SLinus Torvalds struct nfs_locku_opargs *opargs = arg->u.locku; 8001da177e4SLinus Torvalds 8011da177e4SLinus Torvalds RESERVE_SPACE(44); 8021da177e4SLinus Torvalds WRITE32(OP_LOCKU); 8031da177e4SLinus Torvalds WRITE32(arg->type); 804cee54fc9STrond Myklebust WRITE32(opargs->seqid->sequence->counter); 805faf5f49cSTrond Myklebust WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data)); 8061da177e4SLinus Torvalds WRITE64(arg->offset); 8071da177e4SLinus Torvalds WRITE64(arg->length); 8081da177e4SLinus Torvalds 8091da177e4SLinus Torvalds return 0; 8101da177e4SLinus Torvalds } 8111da177e4SLinus Torvalds 8121da177e4SLinus Torvalds static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) 8131da177e4SLinus Torvalds { 8141da177e4SLinus Torvalds int len = name->len; 8151da177e4SLinus Torvalds uint32_t *p; 8161da177e4SLinus Torvalds 8171da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 8181da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 8191da177e4SLinus Torvalds WRITE32(len); 8201da177e4SLinus Torvalds WRITEMEM(name->name, len); 8211da177e4SLinus Torvalds 8221da177e4SLinus Torvalds return 0; 8231da177e4SLinus Torvalds } 8241da177e4SLinus Torvalds 8251da177e4SLinus Torvalds static void encode_share_access(struct xdr_stream *xdr, int open_flags) 8261da177e4SLinus Torvalds { 8271da177e4SLinus Torvalds uint32_t *p; 8281da177e4SLinus Torvalds 8291da177e4SLinus Torvalds RESERVE_SPACE(8); 8301da177e4SLinus Torvalds switch (open_flags & (FMODE_READ|FMODE_WRITE)) { 8311da177e4SLinus Torvalds case FMODE_READ: 8321da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 8331da177e4SLinus Torvalds break; 8341da177e4SLinus Torvalds case FMODE_WRITE: 8351da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 8361da177e4SLinus Torvalds break; 8371da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 8381da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 8391da177e4SLinus Torvalds break; 8401da177e4SLinus Torvalds default: 8411da177e4SLinus Torvalds BUG(); 8421da177e4SLinus Torvalds } 8431da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 8441da177e4SLinus Torvalds } 8451da177e4SLinus Torvalds 8461da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 8471da177e4SLinus Torvalds { 8481da177e4SLinus Torvalds uint32_t *p; 8491da177e4SLinus Torvalds /* 8501da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 8511da177e4SLinus Torvalds * owner 4 = 32 8521da177e4SLinus Torvalds */ 8531da177e4SLinus Torvalds RESERVE_SPACE(8); 8541da177e4SLinus Torvalds WRITE32(OP_OPEN); 855cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 8561da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 8571da177e4SLinus Torvalds RESERVE_SPACE(16); 8581da177e4SLinus Torvalds WRITE64(arg->clientid); 8591da177e4SLinus Torvalds WRITE32(4); 8601da177e4SLinus Torvalds WRITE32(arg->id); 8611da177e4SLinus Torvalds } 8621da177e4SLinus Torvalds 8631da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 8641da177e4SLinus Torvalds { 8651da177e4SLinus Torvalds uint32_t *p; 8661da177e4SLinus Torvalds 8671da177e4SLinus Torvalds RESERVE_SPACE(4); 8681da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 8691da177e4SLinus Torvalds case 0: 8701da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 8711da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 8721da177e4SLinus Torvalds break; 8731da177e4SLinus Torvalds default: 8741da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 8751da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 8761da177e4SLinus Torvalds } 8771da177e4SLinus Torvalds } 8781da177e4SLinus Torvalds 8791da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 8801da177e4SLinus Torvalds { 8811da177e4SLinus Torvalds uint32_t *p; 8821da177e4SLinus Torvalds 8831da177e4SLinus Torvalds RESERVE_SPACE(4); 8841da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 8851da177e4SLinus Torvalds case 0: 8861da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 8871da177e4SLinus Torvalds break; 8881da177e4SLinus Torvalds default: 8891da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 8901da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 8911da177e4SLinus Torvalds encode_createmode(xdr, arg); 8921da177e4SLinus Torvalds } 8931da177e4SLinus Torvalds } 8941da177e4SLinus Torvalds 8951da177e4SLinus Torvalds static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) 8961da177e4SLinus Torvalds { 8971da177e4SLinus Torvalds uint32_t *p; 8981da177e4SLinus Torvalds 8991da177e4SLinus Torvalds RESERVE_SPACE(4); 9001da177e4SLinus Torvalds switch (delegation_type) { 9011da177e4SLinus Torvalds case 0: 9021da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 9031da177e4SLinus Torvalds break; 9041da177e4SLinus Torvalds case FMODE_READ: 9051da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 9061da177e4SLinus Torvalds break; 9071da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 9081da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 9091da177e4SLinus Torvalds break; 9101da177e4SLinus Torvalds default: 9111da177e4SLinus Torvalds BUG(); 9121da177e4SLinus Torvalds } 9131da177e4SLinus Torvalds } 9141da177e4SLinus Torvalds 9151da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 9161da177e4SLinus Torvalds { 9171da177e4SLinus Torvalds uint32_t *p; 9181da177e4SLinus Torvalds 9191da177e4SLinus Torvalds RESERVE_SPACE(4); 9201da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 9211da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 9221da177e4SLinus Torvalds } 9231da177e4SLinus Torvalds 9241da177e4SLinus Torvalds static inline void encode_claim_previous(struct xdr_stream *xdr, int type) 9251da177e4SLinus Torvalds { 9261da177e4SLinus Torvalds uint32_t *p; 9271da177e4SLinus Torvalds 9281da177e4SLinus Torvalds RESERVE_SPACE(4); 9291da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 9301da177e4SLinus Torvalds encode_delegation_type(xdr, type); 9311da177e4SLinus Torvalds } 9321da177e4SLinus Torvalds 9331da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 9341da177e4SLinus Torvalds { 9351da177e4SLinus Torvalds uint32_t *p; 9361da177e4SLinus Torvalds 9371da177e4SLinus Torvalds RESERVE_SPACE(4+sizeof(stateid->data)); 9381da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 9391da177e4SLinus Torvalds WRITEMEM(stateid->data, sizeof(stateid->data)); 9401da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 9411da177e4SLinus Torvalds } 9421da177e4SLinus Torvalds 9431da177e4SLinus Torvalds static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9441da177e4SLinus Torvalds { 9451da177e4SLinus Torvalds encode_openhdr(xdr, arg); 9461da177e4SLinus Torvalds encode_opentype(xdr, arg); 9471da177e4SLinus Torvalds switch (arg->claim) { 9481da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 9491da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 9501da177e4SLinus Torvalds break; 9511da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 9521da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 9531da177e4SLinus Torvalds break; 9541da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 9551da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 9561da177e4SLinus Torvalds break; 9571da177e4SLinus Torvalds default: 9581da177e4SLinus Torvalds BUG(); 9591da177e4SLinus Torvalds } 9601da177e4SLinus Torvalds return 0; 9611da177e4SLinus Torvalds } 9621da177e4SLinus Torvalds 9631da177e4SLinus Torvalds static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) 9641da177e4SLinus Torvalds { 9651da177e4SLinus Torvalds uint32_t *p; 9661da177e4SLinus Torvalds 967cdd4e68bSTrond Myklebust RESERVE_SPACE(8+sizeof(arg->stateid->data)); 9681da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 969cdd4e68bSTrond Myklebust WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); 970cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 9711da177e4SLinus Torvalds 9721da177e4SLinus Torvalds return 0; 9731da177e4SLinus Torvalds } 9741da177e4SLinus Torvalds 9751da177e4SLinus Torvalds static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 9761da177e4SLinus Torvalds { 9771da177e4SLinus Torvalds uint32_t *p; 9781da177e4SLinus Torvalds 9799512135dSTrond Myklebust RESERVE_SPACE(8+sizeof(arg->stateid->data)); 9801da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 9819512135dSTrond Myklebust WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data)); 982cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 9831da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 9841da177e4SLinus Torvalds return 0; 9851da177e4SLinus Torvalds } 9861da177e4SLinus Torvalds 9871da177e4SLinus Torvalds static int 9881da177e4SLinus Torvalds encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) 9891da177e4SLinus Torvalds { 9901da177e4SLinus Torvalds int len = fh->size; 9911da177e4SLinus Torvalds uint32_t *p; 9921da177e4SLinus Torvalds 9931da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 9941da177e4SLinus Torvalds WRITE32(OP_PUTFH); 9951da177e4SLinus Torvalds WRITE32(len); 9961da177e4SLinus Torvalds WRITEMEM(fh->data, len); 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds return 0; 9991da177e4SLinus Torvalds } 10001da177e4SLinus Torvalds 10011da177e4SLinus Torvalds static int encode_putrootfh(struct xdr_stream *xdr) 10021da177e4SLinus Torvalds { 10031da177e4SLinus Torvalds uint32_t *p; 10041da177e4SLinus Torvalds 10051da177e4SLinus Torvalds RESERVE_SPACE(4); 10061da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 10071da177e4SLinus Torvalds 10081da177e4SLinus Torvalds return 0; 10091da177e4SLinus Torvalds } 10101da177e4SLinus Torvalds 10111da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 10121da177e4SLinus Torvalds { 10131da177e4SLinus Torvalds nfs4_stateid stateid; 10141da177e4SLinus Torvalds uint32_t *p; 10151da177e4SLinus Torvalds 10161da177e4SLinus Torvalds RESERVE_SPACE(16); 10171da177e4SLinus Torvalds if (ctx->state != NULL) { 10181da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 10191da177e4SLinus Torvalds WRITEMEM(stateid.data, sizeof(stateid.data)); 10201da177e4SLinus Torvalds } else 10211da177e4SLinus Torvalds WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); 10221da177e4SLinus Torvalds } 10231da177e4SLinus Torvalds 10241da177e4SLinus Torvalds static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) 10251da177e4SLinus Torvalds { 10261da177e4SLinus Torvalds uint32_t *p; 10271da177e4SLinus Torvalds 10281da177e4SLinus Torvalds RESERVE_SPACE(4); 10291da177e4SLinus Torvalds WRITE32(OP_READ); 10301da177e4SLinus Torvalds 10311da177e4SLinus Torvalds encode_stateid(xdr, args->context); 10321da177e4SLinus Torvalds 10331da177e4SLinus Torvalds RESERVE_SPACE(12); 10341da177e4SLinus Torvalds WRITE64(args->offset); 10351da177e4SLinus Torvalds WRITE32(args->count); 10361da177e4SLinus Torvalds 10371da177e4SLinus Torvalds return 0; 10381da177e4SLinus Torvalds } 10391da177e4SLinus Torvalds 10401da177e4SLinus Torvalds static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) 10411da177e4SLinus Torvalds { 10421da177e4SLinus Torvalds struct rpc_auth *auth = req->rq_task->tk_auth; 104397d312d0SManoj Naik uint32_t attrs[2] = { 104497d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 104597d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 104697d312d0SManoj Naik }; 10471da177e4SLinus Torvalds int replen; 10481da177e4SLinus Torvalds uint32_t *p; 10491da177e4SLinus Torvalds 10501da177e4SLinus Torvalds RESERVE_SPACE(32+sizeof(nfs4_verifier)); 10511da177e4SLinus Torvalds WRITE32(OP_READDIR); 10521da177e4SLinus Torvalds WRITE64(readdir->cookie); 10531da177e4SLinus Torvalds WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data)); 10541da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 10551da177e4SLinus Torvalds WRITE32(readdir->count); 10561da177e4SLinus Torvalds WRITE32(2); 105797d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 105897d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 105997d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 106097d312d0SManoj Naik else 106197d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 106297d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 106397d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1064eadf4598STrond Myklebust dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", 1065eadf4598STrond Myklebust __FUNCTION__, 1066eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1067eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1068eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1069eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1070eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 10711da177e4SLinus Torvalds 10721da177e4SLinus Torvalds /* set up reply kvec 10731da177e4SLinus Torvalds * toplevel_status + taglen + rescount + OP_PUTFH + status 10741da177e4SLinus Torvalds * + OP_READDIR + status + verifer(2) = 9 10751da177e4SLinus Torvalds */ 10761da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; 10771da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, 10781da177e4SLinus Torvalds readdir->pgbase, readdir->count); 1079eadf4598STrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 1080eadf4598STrond Myklebust __FUNCTION__, replen, readdir->pages, 1081eadf4598STrond Myklebust readdir->pgbase, readdir->count); 10821da177e4SLinus Torvalds 10831da177e4SLinus Torvalds return 0; 10841da177e4SLinus Torvalds } 10851da177e4SLinus Torvalds 10861da177e4SLinus Torvalds static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) 10871da177e4SLinus Torvalds { 10881da177e4SLinus Torvalds struct rpc_auth *auth = req->rq_task->tk_auth; 10891da177e4SLinus Torvalds unsigned int replen; 10901da177e4SLinus Torvalds uint32_t *p; 10911da177e4SLinus Torvalds 10921da177e4SLinus Torvalds RESERVE_SPACE(4); 10931da177e4SLinus Torvalds WRITE32(OP_READLINK); 10941da177e4SLinus Torvalds 10951da177e4SLinus Torvalds /* set up reply kvec 10961da177e4SLinus Torvalds * toplevel_status + taglen + rescount + OP_PUTFH + status 10971da177e4SLinus Torvalds * + OP_READLINK + status + string length = 8 10981da177e4SLinus Torvalds */ 10991da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2; 11001da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, 11011da177e4SLinus Torvalds readlink->pgbase, readlink->pglen); 11021da177e4SLinus Torvalds 11031da177e4SLinus Torvalds return 0; 11041da177e4SLinus Torvalds } 11051da177e4SLinus Torvalds 11061da177e4SLinus Torvalds static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) 11071da177e4SLinus Torvalds { 11081da177e4SLinus Torvalds uint32_t *p; 11091da177e4SLinus Torvalds 11101da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 11111da177e4SLinus Torvalds WRITE32(OP_REMOVE); 11121da177e4SLinus Torvalds WRITE32(name->len); 11131da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 11141da177e4SLinus Torvalds 11151da177e4SLinus Torvalds return 0; 11161da177e4SLinus Torvalds } 11171da177e4SLinus Torvalds 11181da177e4SLinus Torvalds static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) 11191da177e4SLinus Torvalds { 11201da177e4SLinus Torvalds uint32_t *p; 11211da177e4SLinus Torvalds 11221da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 11231da177e4SLinus Torvalds WRITE32(OP_RENAME); 11241da177e4SLinus Torvalds WRITE32(oldname->len); 11251da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 11261da177e4SLinus Torvalds 11271da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 11281da177e4SLinus Torvalds WRITE32(newname->len); 11291da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 11301da177e4SLinus Torvalds 11311da177e4SLinus Torvalds return 0; 11321da177e4SLinus Torvalds } 11331da177e4SLinus Torvalds 11341da177e4SLinus Torvalds static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid) 11351da177e4SLinus Torvalds { 11361da177e4SLinus Torvalds uint32_t *p; 11371da177e4SLinus Torvalds 11381da177e4SLinus Torvalds RESERVE_SPACE(12); 11391da177e4SLinus Torvalds WRITE32(OP_RENEW); 11401da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 11411da177e4SLinus Torvalds 11421da177e4SLinus Torvalds return 0; 11431da177e4SLinus Torvalds } 11441da177e4SLinus Torvalds 11451da177e4SLinus Torvalds static int 114656ae19f3STrond Myklebust encode_restorefh(struct xdr_stream *xdr) 114756ae19f3STrond Myklebust { 114856ae19f3STrond Myklebust uint32_t *p; 114956ae19f3STrond Myklebust 115056ae19f3STrond Myklebust RESERVE_SPACE(4); 115156ae19f3STrond Myklebust WRITE32(OP_RESTOREFH); 115256ae19f3STrond Myklebust 115356ae19f3STrond Myklebust return 0; 115456ae19f3STrond Myklebust } 115556ae19f3STrond Myklebust 115656ae19f3STrond Myklebust static int 115723ec6965SJ. Bruce Fields encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) 115823ec6965SJ. Bruce Fields { 115923ec6965SJ. Bruce Fields uint32_t *p; 116023ec6965SJ. Bruce Fields 116123ec6965SJ. Bruce Fields RESERVE_SPACE(4+sizeof(zero_stateid.data)); 116223ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 116323ec6965SJ. Bruce Fields WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); 116423ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 116523ec6965SJ. Bruce Fields WRITE32(1); 116623ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 116723ec6965SJ. Bruce Fields if (arg->acl_len % 4) 116823ec6965SJ. Bruce Fields return -EINVAL; 116923ec6965SJ. Bruce Fields RESERVE_SPACE(4); 117023ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 117123ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 117223ec6965SJ. Bruce Fields return 0; 117323ec6965SJ. Bruce Fields } 117423ec6965SJ. Bruce Fields 117523ec6965SJ. Bruce Fields static int 11761da177e4SLinus Torvalds encode_savefh(struct xdr_stream *xdr) 11771da177e4SLinus Torvalds { 11781da177e4SLinus Torvalds uint32_t *p; 11791da177e4SLinus Torvalds 11801da177e4SLinus Torvalds RESERVE_SPACE(4); 11811da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 11821da177e4SLinus Torvalds 11831da177e4SLinus Torvalds return 0; 11841da177e4SLinus Torvalds } 11851da177e4SLinus Torvalds 11861da177e4SLinus Torvalds static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) 11871da177e4SLinus Torvalds { 11881da177e4SLinus Torvalds int status; 11891da177e4SLinus Torvalds uint32_t *p; 11901da177e4SLinus Torvalds 11911da177e4SLinus Torvalds RESERVE_SPACE(4+sizeof(arg->stateid.data)); 11921da177e4SLinus Torvalds WRITE32(OP_SETATTR); 11931da177e4SLinus Torvalds WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data)); 11941da177e4SLinus Torvalds 11951da177e4SLinus Torvalds if ((status = encode_attrs(xdr, arg->iap, server))) 11961da177e4SLinus Torvalds return status; 11971da177e4SLinus Torvalds 11981da177e4SLinus Torvalds return 0; 11991da177e4SLinus Torvalds } 12001da177e4SLinus Torvalds 12011da177e4SLinus Torvalds static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) 12021da177e4SLinus Torvalds { 12031da177e4SLinus Torvalds uint32_t *p; 12041da177e4SLinus Torvalds 12051da177e4SLinus Torvalds RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data)); 12061da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 12071da177e4SLinus Torvalds WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data)); 12081da177e4SLinus Torvalds 12091da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 12101da177e4SLinus Torvalds RESERVE_SPACE(4); 12111da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 12121da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 12131da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 12141da177e4SLinus Torvalds RESERVE_SPACE(4); 12151da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 12161da177e4SLinus Torvalds 12171da177e4SLinus Torvalds return 0; 12181da177e4SLinus Torvalds } 12191da177e4SLinus Torvalds 12201da177e4SLinus Torvalds static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state) 12211da177e4SLinus Torvalds { 12221da177e4SLinus Torvalds uint32_t *p; 12231da177e4SLinus Torvalds 12241da177e4SLinus Torvalds RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data)); 12251da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 12261da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 12271da177e4SLinus Torvalds WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data)); 12281da177e4SLinus Torvalds 12291da177e4SLinus Torvalds return 0; 12301da177e4SLinus Torvalds } 12311da177e4SLinus Torvalds 12321da177e4SLinus Torvalds static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) 12331da177e4SLinus Torvalds { 12341da177e4SLinus Torvalds uint32_t *p; 12351da177e4SLinus Torvalds 12361da177e4SLinus Torvalds RESERVE_SPACE(4); 12371da177e4SLinus Torvalds WRITE32(OP_WRITE); 12381da177e4SLinus Torvalds 12391da177e4SLinus Torvalds encode_stateid(xdr, args->context); 12401da177e4SLinus Torvalds 12411da177e4SLinus Torvalds RESERVE_SPACE(16); 12421da177e4SLinus Torvalds WRITE64(args->offset); 12431da177e4SLinus Torvalds WRITE32(args->stable); 12441da177e4SLinus Torvalds WRITE32(args->count); 12451da177e4SLinus Torvalds 12461da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 12471da177e4SLinus Torvalds 12481da177e4SLinus Torvalds return 0; 12491da177e4SLinus Torvalds } 12501da177e4SLinus Torvalds 12511da177e4SLinus Torvalds static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) 12521da177e4SLinus Torvalds { 12531da177e4SLinus Torvalds uint32_t *p; 12541da177e4SLinus Torvalds 12551da177e4SLinus Torvalds RESERVE_SPACE(20); 12561da177e4SLinus Torvalds 12571da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 12581da177e4SLinus Torvalds WRITEMEM(stateid->data, sizeof(stateid->data)); 12591da177e4SLinus Torvalds return 0; 12601da177e4SLinus Torvalds 12611da177e4SLinus Torvalds } 12621da177e4SLinus Torvalds /* 12631da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 12641da177e4SLinus Torvalds */ 12651da177e4SLinus Torvalds 12661da177e4SLinus Torvalds /* 12671da177e4SLinus Torvalds * Encode an ACCESS request 12681da177e4SLinus Torvalds */ 12691da177e4SLinus Torvalds static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args) 12701da177e4SLinus Torvalds { 12711da177e4SLinus Torvalds struct xdr_stream xdr; 12721da177e4SLinus Torvalds struct compound_hdr hdr = { 12731da177e4SLinus Torvalds .nops = 2, 12741da177e4SLinus Torvalds }; 12751da177e4SLinus Torvalds int status; 12761da177e4SLinus Torvalds 12771da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 12781da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 12791da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 12801da177e4SLinus Torvalds status = encode_access(&xdr, args->access); 12811da177e4SLinus Torvalds return status; 12821da177e4SLinus Torvalds } 12831da177e4SLinus Torvalds 12841da177e4SLinus Torvalds /* 12851da177e4SLinus Torvalds * Encode LOOKUP request 12861da177e4SLinus Torvalds */ 12871da177e4SLinus Torvalds static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args) 12881da177e4SLinus Torvalds { 12891da177e4SLinus Torvalds struct xdr_stream xdr; 12901da177e4SLinus Torvalds struct compound_hdr hdr = { 12911da177e4SLinus Torvalds .nops = 4, 12921da177e4SLinus Torvalds }; 12931da177e4SLinus Torvalds int status; 12941da177e4SLinus Torvalds 12951da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 12961da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 12971da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 12981da177e4SLinus Torvalds goto out; 12991da177e4SLinus Torvalds if ((status = encode_lookup(&xdr, args->name)) != 0) 13001da177e4SLinus Torvalds goto out; 13011da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 13021da177e4SLinus Torvalds goto out; 13031da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 13041da177e4SLinus Torvalds out: 13051da177e4SLinus Torvalds return status; 13061da177e4SLinus Torvalds } 13071da177e4SLinus Torvalds 13081da177e4SLinus Torvalds /* 13091da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 13101da177e4SLinus Torvalds */ 13111da177e4SLinus Torvalds static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args) 13121da177e4SLinus Torvalds { 13131da177e4SLinus Torvalds struct xdr_stream xdr; 13141da177e4SLinus Torvalds struct compound_hdr hdr = { 13151da177e4SLinus Torvalds .nops = 3, 13161da177e4SLinus Torvalds }; 13171da177e4SLinus Torvalds int status; 13181da177e4SLinus Torvalds 13191da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13201da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13211da177e4SLinus Torvalds if ((status = encode_putrootfh(&xdr)) != 0) 13221da177e4SLinus Torvalds goto out; 13231da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) == 0) 13241da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 13251da177e4SLinus Torvalds out: 13261da177e4SLinus Torvalds return status; 13271da177e4SLinus Torvalds } 13281da177e4SLinus Torvalds 13291da177e4SLinus Torvalds /* 13301da177e4SLinus Torvalds * Encode REMOVE request 13311da177e4SLinus Torvalds */ 13321da177e4SLinus Torvalds static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args) 13331da177e4SLinus Torvalds { 13341da177e4SLinus Torvalds struct xdr_stream xdr; 13351da177e4SLinus Torvalds struct compound_hdr hdr = { 133616e42959STrond Myklebust .nops = 3, 13371da177e4SLinus Torvalds }; 13381da177e4SLinus Torvalds int status; 13391da177e4SLinus Torvalds 13401da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13411da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 134216e42959STrond Myklebust if ((status = encode_putfh(&xdr, args->fh)) != 0) 134316e42959STrond Myklebust goto out; 134416e42959STrond Myklebust if ((status = encode_remove(&xdr, args->name)) != 0) 134516e42959STrond Myklebust goto out; 134616e42959STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 134716e42959STrond Myklebust out: 13481da177e4SLinus Torvalds return status; 13491da177e4SLinus Torvalds } 13501da177e4SLinus Torvalds 13511da177e4SLinus Torvalds /* 13521da177e4SLinus Torvalds * Encode RENAME request 13531da177e4SLinus Torvalds */ 13541da177e4SLinus Torvalds static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args) 13551da177e4SLinus Torvalds { 13561da177e4SLinus Torvalds struct xdr_stream xdr; 13571da177e4SLinus Torvalds struct compound_hdr hdr = { 13586caf2c82STrond Myklebust .nops = 7, 13591da177e4SLinus Torvalds }; 13601da177e4SLinus Torvalds int status; 13611da177e4SLinus Torvalds 13621da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13631da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13641da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->old_dir)) != 0) 13651da177e4SLinus Torvalds goto out; 13661da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 13671da177e4SLinus Torvalds goto out; 13681da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->new_dir)) != 0) 13691da177e4SLinus Torvalds goto out; 13706caf2c82STrond Myklebust if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) 13716caf2c82STrond Myklebust goto out; 13726caf2c82STrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 13736caf2c82STrond Myklebust goto out; 13746caf2c82STrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 13756caf2c82STrond Myklebust goto out; 13766caf2c82STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 13771da177e4SLinus Torvalds out: 13781da177e4SLinus Torvalds return status; 13791da177e4SLinus Torvalds } 13801da177e4SLinus Torvalds 13811da177e4SLinus Torvalds /* 13821da177e4SLinus Torvalds * Encode LINK request 13831da177e4SLinus Torvalds */ 13841da177e4SLinus Torvalds static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args) 13851da177e4SLinus Torvalds { 13861da177e4SLinus Torvalds struct xdr_stream xdr; 13871da177e4SLinus Torvalds struct compound_hdr hdr = { 138891ba2eeeSTrond Myklebust .nops = 7, 13891da177e4SLinus Torvalds }; 13901da177e4SLinus Torvalds int status; 13911da177e4SLinus Torvalds 13921da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13931da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13941da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) != 0) 13951da177e4SLinus Torvalds goto out; 13961da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 13971da177e4SLinus Torvalds goto out; 13981da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 13991da177e4SLinus Torvalds goto out; 140091ba2eeeSTrond Myklebust if ((status = encode_link(&xdr, args->name)) != 0) 140191ba2eeeSTrond Myklebust goto out; 140291ba2eeeSTrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 140391ba2eeeSTrond Myklebust goto out; 140491ba2eeeSTrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 140591ba2eeeSTrond Myklebust goto out; 140691ba2eeeSTrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 14071da177e4SLinus Torvalds out: 14081da177e4SLinus Torvalds return status; 14091da177e4SLinus Torvalds } 14101da177e4SLinus Torvalds 14111da177e4SLinus Torvalds /* 14121da177e4SLinus Torvalds * Encode CREATE request 14131da177e4SLinus Torvalds */ 14141da177e4SLinus Torvalds static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args) 14151da177e4SLinus Torvalds { 14161da177e4SLinus Torvalds struct xdr_stream xdr; 14171da177e4SLinus Torvalds struct compound_hdr hdr = { 141856ae19f3STrond Myklebust .nops = 7, 14191da177e4SLinus Torvalds }; 14201da177e4SLinus Torvalds int status; 14211da177e4SLinus Torvalds 14221da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14231da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14241da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 14251da177e4SLinus Torvalds goto out; 142656ae19f3STrond Myklebust if ((status = encode_savefh(&xdr)) != 0) 142756ae19f3STrond Myklebust goto out; 14281da177e4SLinus Torvalds if ((status = encode_create(&xdr, args)) != 0) 14291da177e4SLinus Torvalds goto out; 14301da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 14311da177e4SLinus Torvalds goto out; 143256ae19f3STrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 143356ae19f3STrond Myklebust goto out; 143456ae19f3STrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 143556ae19f3STrond Myklebust goto out; 14361da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14371da177e4SLinus Torvalds out: 14381da177e4SLinus Torvalds return status; 14391da177e4SLinus Torvalds } 14401da177e4SLinus Torvalds 14411da177e4SLinus Torvalds /* 14421da177e4SLinus Torvalds * Encode SYMLINK request 14431da177e4SLinus Torvalds */ 14441da177e4SLinus Torvalds static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args) 14451da177e4SLinus Torvalds { 14461da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 14471da177e4SLinus Torvalds } 14481da177e4SLinus Torvalds 14491da177e4SLinus Torvalds /* 14501da177e4SLinus Torvalds * Encode GETATTR request 14511da177e4SLinus Torvalds */ 14521da177e4SLinus Torvalds static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args) 14531da177e4SLinus Torvalds { 14541da177e4SLinus Torvalds struct xdr_stream xdr; 14551da177e4SLinus Torvalds struct compound_hdr hdr = { 14561da177e4SLinus Torvalds .nops = 2, 14571da177e4SLinus Torvalds }; 14581da177e4SLinus Torvalds int status; 14591da177e4SLinus Torvalds 14601da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14611da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14621da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 14631da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14641da177e4SLinus Torvalds return status; 14651da177e4SLinus Torvalds } 14661da177e4SLinus Torvalds 14671da177e4SLinus Torvalds /* 14681da177e4SLinus Torvalds * Encode a CLOSE request 14691da177e4SLinus Torvalds */ 14701da177e4SLinus Torvalds static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args) 14711da177e4SLinus Torvalds { 14721da177e4SLinus Torvalds struct xdr_stream xdr; 14731da177e4SLinus Torvalds struct compound_hdr hdr = { 1474516a6af6STrond Myklebust .nops = 3, 14751da177e4SLinus Torvalds }; 14761da177e4SLinus Torvalds int status; 14771da177e4SLinus Torvalds 14781da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14791da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14801da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 14811da177e4SLinus Torvalds if(status) 14821da177e4SLinus Torvalds goto out; 14831da177e4SLinus Torvalds status = encode_close(&xdr, args); 1484516a6af6STrond Myklebust if (status != 0) 1485516a6af6STrond Myklebust goto out; 1486516a6af6STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 14871da177e4SLinus Torvalds out: 14881da177e4SLinus Torvalds return status; 14891da177e4SLinus Torvalds } 14901da177e4SLinus Torvalds 14911da177e4SLinus Torvalds /* 14921da177e4SLinus Torvalds * Encode an OPEN request 14931da177e4SLinus Torvalds */ 14941da177e4SLinus Torvalds static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args) 14951da177e4SLinus Torvalds { 14961da177e4SLinus Torvalds struct xdr_stream xdr; 14971da177e4SLinus Torvalds struct compound_hdr hdr = { 149856ae19f3STrond Myklebust .nops = 7, 14991da177e4SLinus Torvalds }; 15001da177e4SLinus Torvalds int status; 15011da177e4SLinus Torvalds 15021da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15031da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15041da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15051da177e4SLinus Torvalds if (status) 15061da177e4SLinus Torvalds goto out; 150756ae19f3STrond Myklebust status = encode_savefh(&xdr); 150856ae19f3STrond Myklebust if (status) 150956ae19f3STrond Myklebust goto out; 15101da177e4SLinus Torvalds status = encode_open(&xdr, args); 15111da177e4SLinus Torvalds if (status) 15121da177e4SLinus Torvalds goto out; 15131da177e4SLinus Torvalds status = encode_getfh(&xdr); 15141da177e4SLinus Torvalds if (status) 15151da177e4SLinus Torvalds goto out; 15161da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 151756ae19f3STrond Myklebust if (status) 151856ae19f3STrond Myklebust goto out; 151956ae19f3STrond Myklebust status = encode_restorefh(&xdr); 152056ae19f3STrond Myklebust if (status) 152156ae19f3STrond Myklebust goto out; 152256ae19f3STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 15231da177e4SLinus Torvalds out: 15241da177e4SLinus Torvalds return status; 15251da177e4SLinus Torvalds } 15261da177e4SLinus Torvalds 15271da177e4SLinus Torvalds /* 15281da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 15291da177e4SLinus Torvalds */ 15301da177e4SLinus Torvalds static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args) 15311da177e4SLinus Torvalds { 15321da177e4SLinus Torvalds struct xdr_stream xdr; 15331da177e4SLinus Torvalds struct compound_hdr hdr = { 15341da177e4SLinus Torvalds .nops = 2, 15351da177e4SLinus Torvalds }; 15361da177e4SLinus Torvalds int status; 15371da177e4SLinus Torvalds 15381da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15391da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15401da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15411da177e4SLinus Torvalds if(status) 15421da177e4SLinus Torvalds goto out; 15431da177e4SLinus Torvalds status = encode_open_confirm(&xdr, args); 15441da177e4SLinus Torvalds out: 15451da177e4SLinus Torvalds return status; 15461da177e4SLinus Torvalds } 15471da177e4SLinus Torvalds 15481da177e4SLinus Torvalds /* 15491da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 15501da177e4SLinus Torvalds */ 15511da177e4SLinus Torvalds static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args) 15521da177e4SLinus Torvalds { 15531da177e4SLinus Torvalds struct xdr_stream xdr; 15541da177e4SLinus Torvalds struct compound_hdr hdr = { 15551da177e4SLinus Torvalds .nops = 2, 15561da177e4SLinus Torvalds }; 15571da177e4SLinus Torvalds int status; 15581da177e4SLinus Torvalds 1559cee54fc9STrond Myklebust status = nfs_wait_on_sequence(args->seqid, req->rq_task); 1560cee54fc9STrond Myklebust if (status != 0) 1561cee54fc9STrond Myklebust goto out; 15621da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15631da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15641da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15651da177e4SLinus Torvalds if (status) 15661da177e4SLinus Torvalds goto out; 15671da177e4SLinus Torvalds status = encode_open(&xdr, args); 15681da177e4SLinus Torvalds out: 15691da177e4SLinus Torvalds return status; 15701da177e4SLinus Torvalds } 15711da177e4SLinus Torvalds 15721da177e4SLinus Torvalds /* 15731da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 15741da177e4SLinus Torvalds */ 15751da177e4SLinus Torvalds static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args) 15761da177e4SLinus Torvalds { 15771da177e4SLinus Torvalds struct xdr_stream xdr; 15781da177e4SLinus Torvalds struct compound_hdr hdr = { 1579516a6af6STrond Myklebust .nops = 3, 15801da177e4SLinus Torvalds }; 15811da177e4SLinus Torvalds int status; 15821da177e4SLinus Torvalds 15831da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15841da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15851da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15861da177e4SLinus Torvalds if (status) 15871da177e4SLinus Torvalds goto out; 15881da177e4SLinus Torvalds status = encode_open_downgrade(&xdr, args); 1589516a6af6STrond Myklebust if (status != 0) 1590516a6af6STrond Myklebust goto out; 1591516a6af6STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 15921da177e4SLinus Torvalds out: 15931da177e4SLinus Torvalds return status; 15941da177e4SLinus Torvalds } 15951da177e4SLinus Torvalds 15961da177e4SLinus Torvalds /* 15971da177e4SLinus Torvalds * Encode a LOCK request 15981da177e4SLinus Torvalds */ 15991da177e4SLinus Torvalds static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args) 16001da177e4SLinus Torvalds { 16011da177e4SLinus Torvalds struct xdr_stream xdr; 16021da177e4SLinus Torvalds struct compound_hdr hdr = { 16031da177e4SLinus Torvalds .nops = 2, 16041da177e4SLinus Torvalds }; 1605cee54fc9STrond Myklebust struct nfs_lock_opargs *opargs = args->u.lock; 16061da177e4SLinus Torvalds int status; 16071da177e4SLinus Torvalds 160806735b34STrond Myklebust status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task); 1609cee54fc9STrond Myklebust if (status != 0) 1610cee54fc9STrond Myklebust goto out; 161106735b34STrond Myklebust /* Do we need to do an open_to_lock_owner? */ 161206735b34STrond Myklebust if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED) 161306735b34STrond Myklebust opargs->new_lock_owner = 0; 16141da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16151da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16161da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16171da177e4SLinus Torvalds if(status) 16181da177e4SLinus Torvalds goto out; 16191da177e4SLinus Torvalds status = encode_lock(&xdr, args); 16201da177e4SLinus Torvalds out: 16211da177e4SLinus Torvalds return status; 16221da177e4SLinus Torvalds } 16231da177e4SLinus Torvalds 16241da177e4SLinus Torvalds /* 16251da177e4SLinus Torvalds * Encode a LOCKT request 16261da177e4SLinus Torvalds */ 16271da177e4SLinus Torvalds static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args) 16281da177e4SLinus Torvalds { 16291da177e4SLinus Torvalds struct xdr_stream xdr; 16301da177e4SLinus Torvalds struct compound_hdr hdr = { 16311da177e4SLinus Torvalds .nops = 2, 16321da177e4SLinus Torvalds }; 16331da177e4SLinus Torvalds int status; 16341da177e4SLinus Torvalds 16351da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16361da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16371da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16381da177e4SLinus Torvalds if(status) 16391da177e4SLinus Torvalds goto out; 16401da177e4SLinus Torvalds status = encode_lockt(&xdr, args); 16411da177e4SLinus Torvalds out: 16421da177e4SLinus Torvalds return status; 16431da177e4SLinus Torvalds } 16441da177e4SLinus Torvalds 16451da177e4SLinus Torvalds /* 16461da177e4SLinus Torvalds * Encode a LOCKU request 16471da177e4SLinus Torvalds */ 16481da177e4SLinus Torvalds static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args) 16491da177e4SLinus Torvalds { 16501da177e4SLinus Torvalds struct xdr_stream xdr; 16511da177e4SLinus Torvalds struct compound_hdr hdr = { 16521da177e4SLinus Torvalds .nops = 2, 16531da177e4SLinus Torvalds }; 16541da177e4SLinus Torvalds int status; 16551da177e4SLinus Torvalds 16561da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16571da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16581da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16591da177e4SLinus Torvalds if(status) 16601da177e4SLinus Torvalds goto out; 16611da177e4SLinus Torvalds status = encode_locku(&xdr, args); 16621da177e4SLinus Torvalds out: 16631da177e4SLinus Torvalds return status; 16641da177e4SLinus Torvalds } 16651da177e4SLinus Torvalds 16661da177e4SLinus Torvalds /* 16671da177e4SLinus Torvalds * Encode a READLINK request 16681da177e4SLinus Torvalds */ 16691da177e4SLinus Torvalds static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args) 16701da177e4SLinus Torvalds { 16711da177e4SLinus Torvalds struct xdr_stream xdr; 16721da177e4SLinus Torvalds struct compound_hdr hdr = { 16731da177e4SLinus Torvalds .nops = 2, 16741da177e4SLinus Torvalds }; 16751da177e4SLinus Torvalds int status; 16761da177e4SLinus Torvalds 16771da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16781da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16791da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16801da177e4SLinus Torvalds if(status) 16811da177e4SLinus Torvalds goto out; 16821da177e4SLinus Torvalds status = encode_readlink(&xdr, args, req); 16831da177e4SLinus Torvalds out: 16841da177e4SLinus Torvalds return status; 16851da177e4SLinus Torvalds } 16861da177e4SLinus Torvalds 16871da177e4SLinus Torvalds /* 16881da177e4SLinus Torvalds * Encode a READDIR request 16891da177e4SLinus Torvalds */ 16901da177e4SLinus Torvalds static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args) 16911da177e4SLinus Torvalds { 16921da177e4SLinus Torvalds struct xdr_stream xdr; 16931da177e4SLinus Torvalds struct compound_hdr hdr = { 16941da177e4SLinus Torvalds .nops = 2, 16951da177e4SLinus Torvalds }; 16961da177e4SLinus Torvalds int status; 16971da177e4SLinus Torvalds 16981da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16991da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17001da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17011da177e4SLinus Torvalds if(status) 17021da177e4SLinus Torvalds goto out; 17031da177e4SLinus Torvalds status = encode_readdir(&xdr, args, req); 17041da177e4SLinus Torvalds out: 17051da177e4SLinus Torvalds return status; 17061da177e4SLinus Torvalds } 17071da177e4SLinus Torvalds 17081da177e4SLinus Torvalds /* 17091da177e4SLinus Torvalds * Encode a READ request 17101da177e4SLinus Torvalds */ 17111da177e4SLinus Torvalds static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args) 17121da177e4SLinus Torvalds { 17131da177e4SLinus Torvalds struct rpc_auth *auth = req->rq_task->tk_auth; 17141da177e4SLinus Torvalds struct xdr_stream xdr; 17151da177e4SLinus Torvalds struct compound_hdr hdr = { 17161da177e4SLinus Torvalds .nops = 2, 17171da177e4SLinus Torvalds }; 17181da177e4SLinus Torvalds int replen, 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_read(&xdr, args); 17261da177e4SLinus Torvalds if (status) 17271da177e4SLinus Torvalds goto out; 17281da177e4SLinus Torvalds 17291da177e4SLinus Torvalds /* set up reply kvec 17301da177e4SLinus Torvalds * toplevel status + taglen=0 + rescount + OP_PUTFH + status 17311da177e4SLinus Torvalds * + OP_READ + status + eof + datalen = 9 17321da177e4SLinus Torvalds */ 17331da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; 17341da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, 17351da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 17361da177e4SLinus Torvalds out: 17371da177e4SLinus Torvalds return status; 17381da177e4SLinus Torvalds } 17391da177e4SLinus Torvalds 17401da177e4SLinus Torvalds /* 17411da177e4SLinus Torvalds * Encode an SETATTR request 17421da177e4SLinus Torvalds */ 17431da177e4SLinus Torvalds static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args) 17441da177e4SLinus Torvalds 17451da177e4SLinus Torvalds { 17461da177e4SLinus Torvalds struct xdr_stream xdr; 17471da177e4SLinus Torvalds struct compound_hdr hdr = { 17481da177e4SLinus Torvalds .nops = 3, 17491da177e4SLinus Torvalds }; 17501da177e4SLinus Torvalds int status; 17511da177e4SLinus Torvalds 17521da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17531da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17541da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17551da177e4SLinus Torvalds if(status) 17561da177e4SLinus Torvalds goto out; 17571da177e4SLinus Torvalds status = encode_setattr(&xdr, args, args->server); 17581da177e4SLinus Torvalds if(status) 17591da177e4SLinus Torvalds goto out; 17601da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 17611da177e4SLinus Torvalds out: 17621da177e4SLinus Torvalds return status; 17631da177e4SLinus Torvalds } 17641da177e4SLinus Torvalds 17651da177e4SLinus Torvalds /* 1766029d105eSJ. Bruce Fields * Encode a GETACL request 1767029d105eSJ. Bruce Fields */ 1768029d105eSJ. Bruce Fields static int 1769029d105eSJ. Bruce Fields nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p, 1770029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 1771029d105eSJ. Bruce Fields { 1772029d105eSJ. Bruce Fields struct xdr_stream xdr; 1773029d105eSJ. Bruce Fields struct rpc_auth *auth = req->rq_task->tk_auth; 1774029d105eSJ. Bruce Fields struct compound_hdr hdr = { 1775029d105eSJ. Bruce Fields .nops = 2, 1776029d105eSJ. Bruce Fields }; 1777029d105eSJ. Bruce Fields int replen, status; 1778029d105eSJ. Bruce Fields 1779029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1780029d105eSJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 1781029d105eSJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 1782029d105eSJ. Bruce Fields if (status) 1783029d105eSJ. Bruce Fields goto out; 1784029d105eSJ. Bruce Fields status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); 1785029d105eSJ. Bruce Fields /* set up reply buffer: */ 1786029d105eSJ. Bruce Fields replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; 1787029d105eSJ. Bruce Fields xdr_inline_pages(&req->rq_rcv_buf, replen, 1788029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 1789029d105eSJ. Bruce Fields out: 1790029d105eSJ. Bruce Fields return status; 1791029d105eSJ. Bruce Fields } 1792029d105eSJ. Bruce Fields 1793029d105eSJ. Bruce Fields /* 17941da177e4SLinus Torvalds * Encode a WRITE request 17951da177e4SLinus Torvalds */ 17961da177e4SLinus Torvalds static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args) 17971da177e4SLinus Torvalds { 17981da177e4SLinus Torvalds struct xdr_stream xdr; 17991da177e4SLinus Torvalds struct compound_hdr hdr = { 18004f9838c7STrond Myklebust .nops = 3, 18011da177e4SLinus Torvalds }; 18021da177e4SLinus Torvalds int status; 18031da177e4SLinus Torvalds 18041da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18051da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18061da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18071da177e4SLinus Torvalds if (status) 18081da177e4SLinus Torvalds goto out; 18091da177e4SLinus Torvalds status = encode_write(&xdr, args); 18104f9838c7STrond Myklebust if (status) 18114f9838c7STrond Myklebust goto out; 18124f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 18131da177e4SLinus Torvalds out: 18141da177e4SLinus Torvalds return status; 18151da177e4SLinus Torvalds } 18161da177e4SLinus Torvalds 18171da177e4SLinus Torvalds /* 18181da177e4SLinus Torvalds * a COMMIT request 18191da177e4SLinus Torvalds */ 18201da177e4SLinus Torvalds static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args) 18211da177e4SLinus Torvalds { 18221da177e4SLinus Torvalds struct xdr_stream xdr; 18231da177e4SLinus Torvalds struct compound_hdr hdr = { 18244f9838c7STrond Myklebust .nops = 3, 18251da177e4SLinus Torvalds }; 18261da177e4SLinus Torvalds int status; 18271da177e4SLinus Torvalds 18281da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18291da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18301da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18311da177e4SLinus Torvalds if (status) 18321da177e4SLinus Torvalds goto out; 18331da177e4SLinus Torvalds status = encode_commit(&xdr, args); 18344f9838c7STrond Myklebust if (status) 18354f9838c7STrond Myklebust goto out; 18364f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 18371da177e4SLinus Torvalds out: 18381da177e4SLinus Torvalds return status; 18391da177e4SLinus Torvalds } 18401da177e4SLinus Torvalds 18411da177e4SLinus Torvalds /* 18421da177e4SLinus Torvalds * FSINFO request 18431da177e4SLinus Torvalds */ 18441da177e4SLinus Torvalds static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args) 18451da177e4SLinus Torvalds { 18461da177e4SLinus Torvalds struct xdr_stream xdr; 18471da177e4SLinus Torvalds struct compound_hdr hdr = { 18481da177e4SLinus Torvalds .nops = 2, 18491da177e4SLinus Torvalds }; 18501da177e4SLinus Torvalds int status; 18511da177e4SLinus Torvalds 18521da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18531da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18541da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18551da177e4SLinus Torvalds if (!status) 18561da177e4SLinus Torvalds status = encode_fsinfo(&xdr, args->bitmask); 18571da177e4SLinus Torvalds return status; 18581da177e4SLinus Torvalds } 18591da177e4SLinus Torvalds 18601da177e4SLinus Torvalds /* 18611da177e4SLinus Torvalds * a PATHCONF request 18621da177e4SLinus Torvalds */ 18631da177e4SLinus Torvalds static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args) 18641da177e4SLinus Torvalds { 18651da177e4SLinus Torvalds struct xdr_stream xdr; 18661da177e4SLinus Torvalds struct compound_hdr hdr = { 18671da177e4SLinus Torvalds .nops = 2, 18681da177e4SLinus Torvalds }; 18691da177e4SLinus Torvalds int status; 18701da177e4SLinus Torvalds 18711da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18721da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18731da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18741da177e4SLinus Torvalds if (!status) 18751da177e4SLinus Torvalds status = encode_getattr_one(&xdr, 18761da177e4SLinus Torvalds args->bitmask[0] & nfs4_pathconf_bitmap[0]); 18771da177e4SLinus Torvalds return status; 18781da177e4SLinus Torvalds } 18791da177e4SLinus Torvalds 18801da177e4SLinus Torvalds /* 18811da177e4SLinus Torvalds * a STATFS request 18821da177e4SLinus Torvalds */ 18831da177e4SLinus Torvalds static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args) 18841da177e4SLinus Torvalds { 18851da177e4SLinus Torvalds struct xdr_stream xdr; 18861da177e4SLinus Torvalds struct compound_hdr hdr = { 18871da177e4SLinus Torvalds .nops = 2, 18881da177e4SLinus Torvalds }; 18891da177e4SLinus Torvalds int status; 18901da177e4SLinus Torvalds 18911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18921da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18931da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18941da177e4SLinus Torvalds if (status == 0) 18951da177e4SLinus Torvalds status = encode_getattr_two(&xdr, 18961da177e4SLinus Torvalds args->bitmask[0] & nfs4_statfs_bitmap[0], 18971da177e4SLinus Torvalds args->bitmask[1] & nfs4_statfs_bitmap[1]); 18981da177e4SLinus Torvalds return status; 18991da177e4SLinus Torvalds } 19001da177e4SLinus Torvalds 19011da177e4SLinus Torvalds /* 19021da177e4SLinus Torvalds * GETATTR_BITMAP request 19031da177e4SLinus Torvalds */ 19041da177e4SLinus Torvalds static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle) 19051da177e4SLinus Torvalds { 19061da177e4SLinus Torvalds struct xdr_stream xdr; 19071da177e4SLinus Torvalds struct compound_hdr hdr = { 19081da177e4SLinus Torvalds .nops = 2, 19091da177e4SLinus Torvalds }; 19101da177e4SLinus Torvalds int status; 19111da177e4SLinus Torvalds 19121da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19131da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19141da177e4SLinus Torvalds status = encode_putfh(&xdr, fhandle); 19151da177e4SLinus Torvalds if (status == 0) 19161da177e4SLinus Torvalds status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 19171da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 19181da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 19191da177e4SLinus Torvalds FATTR4_WORD0_ACLSUPPORT); 19201da177e4SLinus Torvalds return status; 19211da177e4SLinus Torvalds } 19221da177e4SLinus Torvalds 19231da177e4SLinus Torvalds /* 19241da177e4SLinus Torvalds * a RENEW request 19251da177e4SLinus Torvalds */ 19261da177e4SLinus Torvalds static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp) 19271da177e4SLinus Torvalds { 19281da177e4SLinus Torvalds struct xdr_stream xdr; 19291da177e4SLinus Torvalds struct compound_hdr hdr = { 19301da177e4SLinus Torvalds .nops = 1, 19311da177e4SLinus Torvalds }; 19321da177e4SLinus Torvalds 19331da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19341da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19351da177e4SLinus Torvalds return encode_renew(&xdr, clp); 19361da177e4SLinus Torvalds } 19371da177e4SLinus Torvalds 19381da177e4SLinus Torvalds /* 19391da177e4SLinus Torvalds * a SETCLIENTID request 19401da177e4SLinus Torvalds */ 19411da177e4SLinus Torvalds static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc) 19421da177e4SLinus Torvalds { 19431da177e4SLinus Torvalds struct xdr_stream xdr; 19441da177e4SLinus Torvalds struct compound_hdr hdr = { 19451da177e4SLinus Torvalds .nops = 1, 19461da177e4SLinus Torvalds }; 19471da177e4SLinus Torvalds 19481da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19491da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19501da177e4SLinus Torvalds return encode_setclientid(&xdr, sc); 19511da177e4SLinus Torvalds } 19521da177e4SLinus Torvalds 19531da177e4SLinus Torvalds /* 19541da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 19551da177e4SLinus Torvalds */ 19561da177e4SLinus Torvalds static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp) 19571da177e4SLinus Torvalds { 19581da177e4SLinus Torvalds struct xdr_stream xdr; 19591da177e4SLinus Torvalds struct compound_hdr hdr = { 19601da177e4SLinus Torvalds .nops = 3, 19611da177e4SLinus Torvalds }; 19621da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 19631da177e4SLinus Torvalds int status; 19641da177e4SLinus Torvalds 19651da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19661da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19671da177e4SLinus Torvalds status = encode_setclientid_confirm(&xdr, clp); 19681da177e4SLinus Torvalds if (!status) 19691da177e4SLinus Torvalds status = encode_putrootfh(&xdr); 19701da177e4SLinus Torvalds if (!status) 19711da177e4SLinus Torvalds status = encode_fsinfo(&xdr, lease_bitmap); 19721da177e4SLinus Torvalds return status; 19731da177e4SLinus Torvalds } 19741da177e4SLinus Torvalds 19751da177e4SLinus Torvalds /* 19761da177e4SLinus Torvalds * DELEGRETURN request 19771da177e4SLinus Torvalds */ 19781da177e4SLinus Torvalds static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args) 19791da177e4SLinus Torvalds { 19801da177e4SLinus Torvalds struct xdr_stream xdr; 19811da177e4SLinus Torvalds struct compound_hdr hdr = { 19821da177e4SLinus Torvalds .nops = 2, 19831da177e4SLinus Torvalds }; 19841da177e4SLinus Torvalds int status; 19851da177e4SLinus Torvalds 19861da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19871da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19881da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fhandle)) == 0) 19891da177e4SLinus Torvalds status = encode_delegreturn(&xdr, args->stateid); 19901da177e4SLinus Torvalds return status; 19911da177e4SLinus Torvalds } 19921da177e4SLinus Torvalds 19931da177e4SLinus Torvalds /* 19941da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 19951da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 19961da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 19971da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 19981da177e4SLinus Torvalds * 19991da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 20001da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 20011da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 20021da177e4SLinus Torvalds */ 20031da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 20041da177e4SLinus Torvalds #define READ64(x) do { \ 20051da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 20061da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 20071da177e4SLinus Torvalds } while (0) 20081da177e4SLinus Torvalds #define READTIME(x) do { \ 20091da177e4SLinus Torvalds p++; \ 20101da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 20111da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 20121da177e4SLinus Torvalds } while (0) 20131da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 20141da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 20151da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 20161da177e4SLinus Torvalds } while (0) 20171da177e4SLinus Torvalds 20181da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 20191da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 20201da177e4SLinus Torvalds if (!p) { \ 20211da177e4SLinus Torvalds printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \ 20221da177e4SLinus Torvalds __FUNCTION__, __LINE__); \ 20231da177e4SLinus Torvalds return -EIO; \ 20241da177e4SLinus Torvalds } \ 20251da177e4SLinus Torvalds } while (0) 20261da177e4SLinus Torvalds 20271da177e4SLinus Torvalds static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string) 20281da177e4SLinus Torvalds { 20291da177e4SLinus Torvalds uint32_t *p; 20301da177e4SLinus Torvalds 20311da177e4SLinus Torvalds READ_BUF(4); 20321da177e4SLinus Torvalds READ32(*len); 20331da177e4SLinus Torvalds READ_BUF(*len); 20341da177e4SLinus Torvalds *string = (char *)p; 20351da177e4SLinus Torvalds return 0; 20361da177e4SLinus Torvalds } 20371da177e4SLinus Torvalds 20381da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 20391da177e4SLinus Torvalds { 20401da177e4SLinus Torvalds uint32_t *p; 20411da177e4SLinus Torvalds 20421da177e4SLinus Torvalds READ_BUF(8); 20431da177e4SLinus Torvalds READ32(hdr->status); 20441da177e4SLinus Torvalds READ32(hdr->taglen); 20451da177e4SLinus Torvalds 20461da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 20471da177e4SLinus Torvalds hdr->tag = (char *)p; 20481da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 20491da177e4SLinus Torvalds READ32(hdr->nops); 20501da177e4SLinus Torvalds return 0; 20511da177e4SLinus Torvalds } 20521da177e4SLinus Torvalds 20531da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 20541da177e4SLinus Torvalds { 20551da177e4SLinus Torvalds uint32_t *p; 20561da177e4SLinus Torvalds uint32_t opnum; 20571da177e4SLinus Torvalds int32_t nfserr; 20581da177e4SLinus Torvalds 20591da177e4SLinus Torvalds READ_BUF(8); 20601da177e4SLinus Torvalds READ32(opnum); 20611da177e4SLinus Torvalds if (opnum != expected) { 20621da177e4SLinus Torvalds printk(KERN_NOTICE 20631da177e4SLinus Torvalds "nfs4_decode_op_hdr: Server returned operation" 20641da177e4SLinus Torvalds " %d but we issued a request for %d\n", 20651da177e4SLinus Torvalds opnum, expected); 20661da177e4SLinus Torvalds return -EIO; 20671da177e4SLinus Torvalds } 20681da177e4SLinus Torvalds READ32(nfserr); 20691da177e4SLinus Torvalds if (nfserr != NFS_OK) 20701da177e4SLinus Torvalds return -nfs_stat_to_errno(nfserr); 20711da177e4SLinus Torvalds return 0; 20721da177e4SLinus Torvalds } 20731da177e4SLinus Torvalds 20741da177e4SLinus Torvalds /* Dummy routine */ 20751da177e4SLinus Torvalds static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp) 20761da177e4SLinus Torvalds { 20771da177e4SLinus Torvalds uint32_t *p; 20781da177e4SLinus Torvalds uint32_t strlen; 20791da177e4SLinus Torvalds char *str; 20801da177e4SLinus Torvalds 20811da177e4SLinus Torvalds READ_BUF(12); 20821da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 20831da177e4SLinus Torvalds } 20841da177e4SLinus Torvalds 20851da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 20861da177e4SLinus Torvalds { 20871da177e4SLinus Torvalds uint32_t bmlen, *p; 20881da177e4SLinus Torvalds 20891da177e4SLinus Torvalds READ_BUF(4); 20901da177e4SLinus Torvalds READ32(bmlen); 20911da177e4SLinus Torvalds 20921da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 20931da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 20941da177e4SLinus Torvalds if (bmlen > 0) { 20951da177e4SLinus Torvalds READ32(bitmap[0]); 20961da177e4SLinus Torvalds if (bmlen > 1) 20971da177e4SLinus Torvalds READ32(bitmap[1]); 20981da177e4SLinus Torvalds } 20991da177e4SLinus Torvalds return 0; 21001da177e4SLinus Torvalds } 21011da177e4SLinus Torvalds 21021da177e4SLinus Torvalds static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep) 21031da177e4SLinus Torvalds { 21041da177e4SLinus Torvalds uint32_t *p; 21051da177e4SLinus Torvalds 21061da177e4SLinus Torvalds READ_BUF(4); 21071da177e4SLinus Torvalds READ32(*attrlen); 21081da177e4SLinus Torvalds *savep = xdr->p; 21091da177e4SLinus Torvalds return 0; 21101da177e4SLinus Torvalds } 21111da177e4SLinus Torvalds 21121da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 21131da177e4SLinus Torvalds { 21141da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 21151da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 21161da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 21171da177e4SLinus Torvalds } else 21181da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 21191da177e4SLinus Torvalds dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); 21201da177e4SLinus Torvalds return 0; 21211da177e4SLinus Torvalds } 21221da177e4SLinus Torvalds 21231da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 21241da177e4SLinus Torvalds { 21251da177e4SLinus Torvalds uint32_t *p; 21261da177e4SLinus Torvalds 21271da177e4SLinus Torvalds *type = 0; 21281da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 21291da177e4SLinus Torvalds return -EIO; 21301da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 21311da177e4SLinus Torvalds READ_BUF(4); 21321da177e4SLinus Torvalds READ32(*type); 21331da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 21341da177e4SLinus Torvalds dprintk("%s: bad type %d\n", __FUNCTION__, *type); 21351da177e4SLinus Torvalds return -EIO; 21361da177e4SLinus Torvalds } 21371da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 21381da177e4SLinus Torvalds } 21391da177e4SLinus Torvalds dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); 21401da177e4SLinus Torvalds return 0; 21411da177e4SLinus Torvalds } 21421da177e4SLinus Torvalds 21431da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 21441da177e4SLinus Torvalds { 21451da177e4SLinus Torvalds uint32_t *p; 21461da177e4SLinus Torvalds 21471da177e4SLinus Torvalds *change = 0; 21481da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 21491da177e4SLinus Torvalds return -EIO; 21501da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 21511da177e4SLinus Torvalds READ_BUF(8); 21521da177e4SLinus Torvalds READ64(*change); 21531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 21541da177e4SLinus Torvalds } 21551da177e4SLinus Torvalds dprintk("%s: change attribute=%Lu\n", __FUNCTION__, 21561da177e4SLinus Torvalds (unsigned long long)*change); 21571da177e4SLinus Torvalds return 0; 21581da177e4SLinus Torvalds } 21591da177e4SLinus Torvalds 21601da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 21611da177e4SLinus Torvalds { 21621da177e4SLinus Torvalds uint32_t *p; 21631da177e4SLinus Torvalds 21641da177e4SLinus Torvalds *size = 0; 21651da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 21661da177e4SLinus Torvalds return -EIO; 21671da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 21681da177e4SLinus Torvalds READ_BUF(8); 21691da177e4SLinus Torvalds READ64(*size); 21701da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 21711da177e4SLinus Torvalds } 21721da177e4SLinus Torvalds dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); 21731da177e4SLinus Torvalds return 0; 21741da177e4SLinus Torvalds } 21751da177e4SLinus Torvalds 21761da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 21771da177e4SLinus Torvalds { 21781da177e4SLinus Torvalds uint32_t *p; 21791da177e4SLinus Torvalds 21801da177e4SLinus Torvalds *res = 0; 21811da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 21821da177e4SLinus Torvalds return -EIO; 21831da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 21841da177e4SLinus Torvalds READ_BUF(4); 21851da177e4SLinus Torvalds READ32(*res); 21861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 21871da177e4SLinus Torvalds } 21881da177e4SLinus Torvalds dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 21891da177e4SLinus Torvalds return 0; 21901da177e4SLinus Torvalds } 21911da177e4SLinus Torvalds 21921da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 21931da177e4SLinus Torvalds { 21941da177e4SLinus Torvalds uint32_t *p; 21951da177e4SLinus Torvalds 21961da177e4SLinus Torvalds *res = 0; 21971da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 21981da177e4SLinus Torvalds return -EIO; 21991da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 22001da177e4SLinus Torvalds READ_BUF(4); 22011da177e4SLinus Torvalds READ32(*res); 22021da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 22031da177e4SLinus Torvalds } 22041da177e4SLinus Torvalds dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 22051da177e4SLinus Torvalds return 0; 22061da177e4SLinus Torvalds } 22071da177e4SLinus Torvalds 22081da177e4SLinus Torvalds static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid) 22091da177e4SLinus Torvalds { 22101da177e4SLinus Torvalds uint32_t *p; 22111da177e4SLinus Torvalds 22121da177e4SLinus Torvalds fsid->major = 0; 22131da177e4SLinus Torvalds fsid->minor = 0; 22141da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 22151da177e4SLinus Torvalds return -EIO; 22161da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 22171da177e4SLinus Torvalds READ_BUF(16); 22181da177e4SLinus Torvalds READ64(fsid->major); 22191da177e4SLinus Torvalds READ64(fsid->minor); 22201da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 22211da177e4SLinus Torvalds } 22221da177e4SLinus Torvalds dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, 22231da177e4SLinus Torvalds (unsigned long long)fsid->major, 22241da177e4SLinus Torvalds (unsigned long long)fsid->minor); 22251da177e4SLinus Torvalds return 0; 22261da177e4SLinus Torvalds } 22271da177e4SLinus Torvalds 22281da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22291da177e4SLinus Torvalds { 22301da177e4SLinus Torvalds uint32_t *p; 22311da177e4SLinus Torvalds 22321da177e4SLinus Torvalds *res = 60; 22331da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 22341da177e4SLinus Torvalds return -EIO; 22351da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 22361da177e4SLinus Torvalds READ_BUF(4); 22371da177e4SLinus Torvalds READ32(*res); 22381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 22391da177e4SLinus Torvalds } 22401da177e4SLinus Torvalds dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); 22411da177e4SLinus Torvalds return 0; 22421da177e4SLinus Torvalds } 22431da177e4SLinus Torvalds 22441da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22451da177e4SLinus Torvalds { 22461da177e4SLinus Torvalds uint32_t *p; 22471da177e4SLinus Torvalds 22481da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 22491da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 22501da177e4SLinus Torvalds return -EIO; 22511da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 22521da177e4SLinus Torvalds READ_BUF(4); 22531da177e4SLinus Torvalds READ32(*res); 22541da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 22551da177e4SLinus Torvalds } 22561da177e4SLinus Torvalds dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); 22571da177e4SLinus Torvalds return 0; 22581da177e4SLinus Torvalds } 22591da177e4SLinus Torvalds 22601da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 22611da177e4SLinus Torvalds { 22621da177e4SLinus Torvalds uint32_t *p; 22631da177e4SLinus Torvalds 22641da177e4SLinus Torvalds *fileid = 0; 22651da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 22661da177e4SLinus Torvalds return -EIO; 22671da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 22681da177e4SLinus Torvalds READ_BUF(8); 22691da177e4SLinus Torvalds READ64(*fileid); 22701da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 22711da177e4SLinus Torvalds } 22721da177e4SLinus Torvalds dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 22731da177e4SLinus Torvalds return 0; 22741da177e4SLinus Torvalds } 22751da177e4SLinus Torvalds 22761da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 22771da177e4SLinus Torvalds { 22781da177e4SLinus Torvalds uint32_t *p; 22791da177e4SLinus Torvalds int status = 0; 22801da177e4SLinus Torvalds 22811da177e4SLinus Torvalds *res = 0; 22821da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 22831da177e4SLinus Torvalds return -EIO; 22841da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 22851da177e4SLinus Torvalds READ_BUF(8); 22861da177e4SLinus Torvalds READ64(*res); 22871da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 22881da177e4SLinus Torvalds } 22891da177e4SLinus Torvalds dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 22901da177e4SLinus Torvalds return status; 22911da177e4SLinus Torvalds } 22921da177e4SLinus Torvalds 22931da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 22941da177e4SLinus Torvalds { 22951da177e4SLinus Torvalds uint32_t *p; 22961da177e4SLinus Torvalds int status = 0; 22971da177e4SLinus Torvalds 22981da177e4SLinus Torvalds *res = 0; 22991da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 23001da177e4SLinus Torvalds return -EIO; 23011da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 23021da177e4SLinus Torvalds READ_BUF(8); 23031da177e4SLinus Torvalds READ64(*res); 23041da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 23051da177e4SLinus Torvalds } 23061da177e4SLinus Torvalds dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 23071da177e4SLinus Torvalds return status; 23081da177e4SLinus Torvalds } 23091da177e4SLinus Torvalds 23101da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23111da177e4SLinus Torvalds { 23121da177e4SLinus Torvalds uint32_t *p; 23131da177e4SLinus Torvalds int status = 0; 23141da177e4SLinus Torvalds 23151da177e4SLinus Torvalds *res = 0; 23161da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 23171da177e4SLinus Torvalds return -EIO; 23181da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 23191da177e4SLinus Torvalds READ_BUF(8); 23201da177e4SLinus Torvalds READ64(*res); 23211da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 23221da177e4SLinus Torvalds } 23231da177e4SLinus Torvalds dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 23241da177e4SLinus Torvalds return status; 23251da177e4SLinus Torvalds } 23261da177e4SLinus Torvalds 23271da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23281da177e4SLinus Torvalds { 23291da177e4SLinus Torvalds uint32_t *p; 23301da177e4SLinus Torvalds int status = 0; 23311da177e4SLinus Torvalds 23321da177e4SLinus Torvalds *res = 0; 23331da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 23341da177e4SLinus Torvalds return -EIO; 23351da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 23361da177e4SLinus Torvalds READ_BUF(8); 23371da177e4SLinus Torvalds READ64(*res); 23381da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 23391da177e4SLinus Torvalds } 23401da177e4SLinus Torvalds dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); 23411da177e4SLinus Torvalds return status; 23421da177e4SLinus Torvalds } 23431da177e4SLinus Torvalds 23441da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 23451da177e4SLinus Torvalds { 23461da177e4SLinus Torvalds uint32_t *p; 23471da177e4SLinus Torvalds int status = 0; 23481da177e4SLinus Torvalds 23491da177e4SLinus Torvalds *maxlink = 1; 23501da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 23511da177e4SLinus Torvalds return -EIO; 23521da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 23531da177e4SLinus Torvalds READ_BUF(4); 23541da177e4SLinus Torvalds READ32(*maxlink); 23551da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 23561da177e4SLinus Torvalds } 23571da177e4SLinus Torvalds dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); 23581da177e4SLinus Torvalds return status; 23591da177e4SLinus Torvalds } 23601da177e4SLinus Torvalds 23611da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 23621da177e4SLinus Torvalds { 23631da177e4SLinus Torvalds uint32_t *p; 23641da177e4SLinus Torvalds int status = 0; 23651da177e4SLinus Torvalds 23661da177e4SLinus Torvalds *maxname = 1024; 23671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 23681da177e4SLinus Torvalds return -EIO; 23691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 23701da177e4SLinus Torvalds READ_BUF(4); 23711da177e4SLinus Torvalds READ32(*maxname); 23721da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 23731da177e4SLinus Torvalds } 23741da177e4SLinus Torvalds dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); 23751da177e4SLinus Torvalds return status; 23761da177e4SLinus Torvalds } 23771da177e4SLinus Torvalds 23781da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23791da177e4SLinus Torvalds { 23801da177e4SLinus Torvalds uint32_t *p; 23811da177e4SLinus Torvalds int status = 0; 23821da177e4SLinus Torvalds 23831da177e4SLinus Torvalds *res = 1024; 23841da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 23851da177e4SLinus Torvalds return -EIO; 23861da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 23871da177e4SLinus Torvalds uint64_t maxread; 23881da177e4SLinus Torvalds READ_BUF(8); 23891da177e4SLinus Torvalds READ64(maxread); 23901da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 23911da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 23921da177e4SLinus Torvalds *res = (uint32_t)maxread; 23931da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 23941da177e4SLinus Torvalds } 23951da177e4SLinus Torvalds dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); 23961da177e4SLinus Torvalds return status; 23971da177e4SLinus Torvalds } 23981da177e4SLinus Torvalds 23991da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 24001da177e4SLinus Torvalds { 24011da177e4SLinus Torvalds uint32_t *p; 24021da177e4SLinus Torvalds int status = 0; 24031da177e4SLinus Torvalds 24041da177e4SLinus Torvalds *res = 1024; 24051da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 24061da177e4SLinus Torvalds return -EIO; 24071da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 24081da177e4SLinus Torvalds uint64_t maxwrite; 24091da177e4SLinus Torvalds READ_BUF(8); 24101da177e4SLinus Torvalds READ64(maxwrite); 24111da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 24121da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 24131da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 24141da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 24151da177e4SLinus Torvalds } 24161da177e4SLinus Torvalds dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); 24171da177e4SLinus Torvalds return status; 24181da177e4SLinus Torvalds } 24191da177e4SLinus Torvalds 24201da177e4SLinus Torvalds static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) 24211da177e4SLinus Torvalds { 24221da177e4SLinus Torvalds uint32_t *p; 24231da177e4SLinus Torvalds 24241da177e4SLinus Torvalds *mode = 0; 24251da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 24261da177e4SLinus Torvalds return -EIO; 24271da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 24281da177e4SLinus Torvalds READ_BUF(4); 24291da177e4SLinus Torvalds READ32(*mode); 24301da177e4SLinus Torvalds *mode &= ~S_IFMT; 24311da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 24321da177e4SLinus Torvalds } 24331da177e4SLinus Torvalds dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); 24341da177e4SLinus Torvalds return 0; 24351da177e4SLinus Torvalds } 24361da177e4SLinus Torvalds 24371da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 24381da177e4SLinus Torvalds { 24391da177e4SLinus Torvalds uint32_t *p; 24401da177e4SLinus Torvalds 24411da177e4SLinus Torvalds *nlink = 1; 24421da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 24431da177e4SLinus Torvalds return -EIO; 24441da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 24451da177e4SLinus Torvalds READ_BUF(4); 24461da177e4SLinus Torvalds READ32(*nlink); 24471da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 24481da177e4SLinus Torvalds } 24491da177e4SLinus Torvalds dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); 24501da177e4SLinus Torvalds return 0; 24511da177e4SLinus Torvalds } 24521da177e4SLinus Torvalds 24531da177e4SLinus Torvalds static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid) 24541da177e4SLinus Torvalds { 24551da177e4SLinus Torvalds uint32_t len, *p; 24561da177e4SLinus Torvalds 24571da177e4SLinus Torvalds *uid = -2; 24581da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 24591da177e4SLinus Torvalds return -EIO; 24601da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 24611da177e4SLinus Torvalds READ_BUF(4); 24621da177e4SLinus Torvalds READ32(len); 24631da177e4SLinus Torvalds READ_BUF(len); 24641da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 24651da177e4SLinus Torvalds if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) 24661da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 24671da177e4SLinus Torvalds __FUNCTION__); 24681da177e4SLinus Torvalds } else 24691da177e4SLinus Torvalds printk(KERN_WARNING "%s: name too long (%u)!\n", 24701da177e4SLinus Torvalds __FUNCTION__, len); 24711da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 24721da177e4SLinus Torvalds } 24731da177e4SLinus Torvalds dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); 24741da177e4SLinus Torvalds return 0; 24751da177e4SLinus Torvalds } 24761da177e4SLinus Torvalds 24771da177e4SLinus Torvalds static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid) 24781da177e4SLinus Torvalds { 24791da177e4SLinus Torvalds uint32_t len, *p; 24801da177e4SLinus Torvalds 24811da177e4SLinus Torvalds *gid = -2; 24821da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 24831da177e4SLinus Torvalds return -EIO; 24841da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 24851da177e4SLinus Torvalds READ_BUF(4); 24861da177e4SLinus Torvalds READ32(len); 24871da177e4SLinus Torvalds READ_BUF(len); 24881da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 24891da177e4SLinus Torvalds if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) 24901da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 24911da177e4SLinus Torvalds __FUNCTION__); 24921da177e4SLinus Torvalds } else 24931da177e4SLinus Torvalds printk(KERN_WARNING "%s: name too long (%u)!\n", 24941da177e4SLinus Torvalds __FUNCTION__, len); 24951da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 24961da177e4SLinus Torvalds } 24971da177e4SLinus Torvalds dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); 24981da177e4SLinus Torvalds return 0; 24991da177e4SLinus Torvalds } 25001da177e4SLinus Torvalds 25011da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 25021da177e4SLinus Torvalds { 25031da177e4SLinus Torvalds uint32_t major = 0, minor = 0, *p; 25041da177e4SLinus Torvalds 25051da177e4SLinus Torvalds *rdev = MKDEV(0,0); 25061da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 25071da177e4SLinus Torvalds return -EIO; 25081da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 25091da177e4SLinus Torvalds dev_t tmp; 25101da177e4SLinus Torvalds 25111da177e4SLinus Torvalds READ_BUF(8); 25121da177e4SLinus Torvalds READ32(major); 25131da177e4SLinus Torvalds READ32(minor); 25141da177e4SLinus Torvalds tmp = MKDEV(major, minor); 25151da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 25161da177e4SLinus Torvalds *rdev = tmp; 25171da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 25181da177e4SLinus Torvalds } 25191da177e4SLinus Torvalds dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); 25201da177e4SLinus Torvalds return 0; 25211da177e4SLinus Torvalds } 25221da177e4SLinus Torvalds 25231da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 25241da177e4SLinus Torvalds { 25251da177e4SLinus Torvalds uint32_t *p; 25261da177e4SLinus Torvalds int status = 0; 25271da177e4SLinus Torvalds 25281da177e4SLinus Torvalds *res = 0; 25291da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 25301da177e4SLinus Torvalds return -EIO; 25311da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 25321da177e4SLinus Torvalds READ_BUF(8); 25331da177e4SLinus Torvalds READ64(*res); 25341da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 25351da177e4SLinus Torvalds } 25361da177e4SLinus Torvalds dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 25371da177e4SLinus Torvalds return status; 25381da177e4SLinus Torvalds } 25391da177e4SLinus Torvalds 25401da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 25411da177e4SLinus Torvalds { 25421da177e4SLinus Torvalds uint32_t *p; 25431da177e4SLinus Torvalds int status = 0; 25441da177e4SLinus Torvalds 25451da177e4SLinus Torvalds *res = 0; 25461da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 25471da177e4SLinus Torvalds return -EIO; 25481da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 25491da177e4SLinus Torvalds READ_BUF(8); 25501da177e4SLinus Torvalds READ64(*res); 25511da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 25521da177e4SLinus Torvalds } 25531da177e4SLinus Torvalds dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 25541da177e4SLinus Torvalds return status; 25551da177e4SLinus Torvalds } 25561da177e4SLinus Torvalds 25571da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 25581da177e4SLinus Torvalds { 25591da177e4SLinus Torvalds uint32_t *p; 25601da177e4SLinus Torvalds int status = 0; 25611da177e4SLinus Torvalds 25621da177e4SLinus Torvalds *res = 0; 25631da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 25641da177e4SLinus Torvalds return -EIO; 25651da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 25661da177e4SLinus Torvalds READ_BUF(8); 25671da177e4SLinus Torvalds READ64(*res); 25681da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 25691da177e4SLinus Torvalds } 25701da177e4SLinus Torvalds dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 25711da177e4SLinus Torvalds return status; 25721da177e4SLinus Torvalds } 25731da177e4SLinus Torvalds 25741da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 25751da177e4SLinus Torvalds { 25761da177e4SLinus Torvalds uint32_t *p; 25771da177e4SLinus Torvalds 25781da177e4SLinus Torvalds *used = 0; 25791da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 25801da177e4SLinus Torvalds return -EIO; 25811da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 25821da177e4SLinus Torvalds READ_BUF(8); 25831da177e4SLinus Torvalds READ64(*used); 25841da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 25851da177e4SLinus Torvalds } 25861da177e4SLinus Torvalds dprintk("%s: space used=%Lu\n", __FUNCTION__, 25871da177e4SLinus Torvalds (unsigned long long)*used); 25881da177e4SLinus Torvalds return 0; 25891da177e4SLinus Torvalds } 25901da177e4SLinus Torvalds 25911da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 25921da177e4SLinus Torvalds { 25931da177e4SLinus Torvalds uint32_t *p; 25941da177e4SLinus Torvalds uint64_t sec; 25951da177e4SLinus Torvalds uint32_t nsec; 25961da177e4SLinus Torvalds 25971da177e4SLinus Torvalds READ_BUF(12); 25981da177e4SLinus Torvalds READ64(sec); 25991da177e4SLinus Torvalds READ32(nsec); 26001da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 26011da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 26021da177e4SLinus Torvalds return 0; 26031da177e4SLinus Torvalds } 26041da177e4SLinus Torvalds 26051da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 26061da177e4SLinus Torvalds { 26071da177e4SLinus Torvalds int status = 0; 26081da177e4SLinus Torvalds 26091da177e4SLinus Torvalds time->tv_sec = 0; 26101da177e4SLinus Torvalds time->tv_nsec = 0; 26111da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 26121da177e4SLinus Torvalds return -EIO; 26131da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 26141da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 26151da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 26161da177e4SLinus Torvalds } 26171da177e4SLinus Torvalds dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); 26181da177e4SLinus Torvalds return status; 26191da177e4SLinus Torvalds } 26201da177e4SLinus Torvalds 26211da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 26221da177e4SLinus Torvalds { 26231da177e4SLinus Torvalds int status = 0; 26241da177e4SLinus Torvalds 26251da177e4SLinus Torvalds time->tv_sec = 0; 26261da177e4SLinus Torvalds time->tv_nsec = 0; 26271da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 26281da177e4SLinus Torvalds return -EIO; 26291da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 26301da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 26311da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 26321da177e4SLinus Torvalds } 26331da177e4SLinus Torvalds dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); 26341da177e4SLinus Torvalds return status; 26351da177e4SLinus Torvalds } 26361da177e4SLinus Torvalds 26371da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 26381da177e4SLinus Torvalds { 26391da177e4SLinus Torvalds int status = 0; 26401da177e4SLinus Torvalds 26411da177e4SLinus Torvalds time->tv_sec = 0; 26421da177e4SLinus Torvalds time->tv_nsec = 0; 26431da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 26441da177e4SLinus Torvalds return -EIO; 26451da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 26461da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 26471da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 26481da177e4SLinus Torvalds } 26491da177e4SLinus Torvalds dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); 26501da177e4SLinus Torvalds return status; 26511da177e4SLinus Torvalds } 26521da177e4SLinus Torvalds 26531da177e4SLinus Torvalds static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen) 26541da177e4SLinus Torvalds { 26551da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 26561da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 26571da177e4SLinus Torvalds 26581da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 26591da177e4SLinus Torvalds printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n", 26601da177e4SLinus Torvalds __FUNCTION__, 26611da177e4SLinus Torvalds attrwords << 2, 26621da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 26631da177e4SLinus Torvalds nwords << 2); 26641da177e4SLinus Torvalds return -EIO; 26651da177e4SLinus Torvalds } 26661da177e4SLinus Torvalds return 0; 26671da177e4SLinus Torvalds } 26681da177e4SLinus Torvalds 26691da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 26701da177e4SLinus Torvalds { 26711da177e4SLinus Torvalds uint32_t *p; 26721da177e4SLinus Torvalds 26731da177e4SLinus Torvalds READ_BUF(20); 26741da177e4SLinus Torvalds READ32(cinfo->atomic); 26751da177e4SLinus Torvalds READ64(cinfo->before); 26761da177e4SLinus Torvalds READ64(cinfo->after); 26771da177e4SLinus Torvalds return 0; 26781da177e4SLinus Torvalds } 26791da177e4SLinus Torvalds 26801da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 26811da177e4SLinus Torvalds { 26821da177e4SLinus Torvalds uint32_t *p; 26831da177e4SLinus Torvalds uint32_t supp, acc; 26841da177e4SLinus Torvalds int status; 26851da177e4SLinus Torvalds 26861da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 26871da177e4SLinus Torvalds if (status) 26881da177e4SLinus Torvalds return status; 26891da177e4SLinus Torvalds READ_BUF(8); 26901da177e4SLinus Torvalds READ32(supp); 26911da177e4SLinus Torvalds READ32(acc); 26921da177e4SLinus Torvalds access->supported = supp; 26931da177e4SLinus Torvalds access->access = acc; 26941da177e4SLinus Torvalds return 0; 26951da177e4SLinus Torvalds } 26961da177e4SLinus Torvalds 26971da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 26981da177e4SLinus Torvalds { 26991da177e4SLinus Torvalds uint32_t *p; 27001da177e4SLinus Torvalds int status; 27011da177e4SLinus Torvalds 27021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 27031da177e4SLinus Torvalds if (status) 27041da177e4SLinus Torvalds return status; 27051da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 27061da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 27071da177e4SLinus Torvalds return 0; 27081da177e4SLinus Torvalds } 27091da177e4SLinus Torvalds 27101da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 27111da177e4SLinus Torvalds { 27121da177e4SLinus Torvalds uint32_t *p; 27131da177e4SLinus Torvalds int status; 27141da177e4SLinus Torvalds 27151da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 27161da177e4SLinus Torvalds if (status) 27171da177e4SLinus Torvalds return status; 27181da177e4SLinus Torvalds READ_BUF(8); 27191da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 27201da177e4SLinus Torvalds return 0; 27211da177e4SLinus Torvalds } 27221da177e4SLinus Torvalds 27231da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 27241da177e4SLinus Torvalds { 27251da177e4SLinus Torvalds uint32_t *p; 27261da177e4SLinus Torvalds uint32_t bmlen; 27271da177e4SLinus Torvalds int status; 27281da177e4SLinus Torvalds 27291da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 27301da177e4SLinus Torvalds if (status) 27311da177e4SLinus Torvalds return status; 27321da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 27331da177e4SLinus Torvalds return status; 27341da177e4SLinus Torvalds READ_BUF(4); 27351da177e4SLinus Torvalds READ32(bmlen); 27361da177e4SLinus Torvalds READ_BUF(bmlen << 2); 27371da177e4SLinus Torvalds return 0; 27381da177e4SLinus Torvalds } 27391da177e4SLinus Torvalds 27401da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 27411da177e4SLinus Torvalds { 27421da177e4SLinus Torvalds uint32_t *savep; 27431da177e4SLinus Torvalds uint32_t attrlen, 27441da177e4SLinus Torvalds bitmap[2] = {0}; 27451da177e4SLinus Torvalds int status; 27461da177e4SLinus Torvalds 27471da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 27481da177e4SLinus Torvalds goto xdr_error; 27491da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 27501da177e4SLinus Torvalds goto xdr_error; 27511da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 27521da177e4SLinus Torvalds goto xdr_error; 27531da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 27541da177e4SLinus Torvalds goto xdr_error; 27551da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 27561da177e4SLinus Torvalds goto xdr_error; 27571da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 27581da177e4SLinus Torvalds goto xdr_error; 27591da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 27601da177e4SLinus Torvalds goto xdr_error; 27611da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 27621da177e4SLinus Torvalds xdr_error: 276316c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 27641da177e4SLinus Torvalds return status; 27651da177e4SLinus Torvalds } 27661da177e4SLinus Torvalds 27671da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 27681da177e4SLinus Torvalds { 27691da177e4SLinus Torvalds uint32_t *savep; 27701da177e4SLinus Torvalds uint32_t attrlen, 27711da177e4SLinus Torvalds bitmap[2] = {0}; 27721da177e4SLinus Torvalds int status; 27731da177e4SLinus Torvalds 27741da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 27751da177e4SLinus Torvalds goto xdr_error; 27761da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 27771da177e4SLinus Torvalds goto xdr_error; 27781da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 27791da177e4SLinus Torvalds goto xdr_error; 27801da177e4SLinus Torvalds 27811da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 27821da177e4SLinus Torvalds goto xdr_error; 27831da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 27841da177e4SLinus Torvalds goto xdr_error; 27851da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 27861da177e4SLinus Torvalds goto xdr_error; 27871da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 27881da177e4SLinus Torvalds goto xdr_error; 27891da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 27901da177e4SLinus Torvalds goto xdr_error; 27911da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 27921da177e4SLinus Torvalds goto xdr_error; 27931da177e4SLinus Torvalds 27941da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 27951da177e4SLinus Torvalds xdr_error: 279616c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 27971da177e4SLinus Torvalds return status; 27981da177e4SLinus Torvalds } 27991da177e4SLinus Torvalds 28001da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 28011da177e4SLinus Torvalds { 28021da177e4SLinus Torvalds uint32_t *savep; 28031da177e4SLinus Torvalds uint32_t attrlen, 28041da177e4SLinus Torvalds bitmap[2] = {0}; 28051da177e4SLinus Torvalds int status; 28061da177e4SLinus Torvalds 28071da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 28081da177e4SLinus Torvalds goto xdr_error; 28091da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 28101da177e4SLinus Torvalds goto xdr_error; 28111da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 28121da177e4SLinus Torvalds goto xdr_error; 28131da177e4SLinus Torvalds 28141da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 28151da177e4SLinus Torvalds goto xdr_error; 28161da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 28171da177e4SLinus Torvalds goto xdr_error; 28181da177e4SLinus Torvalds 28191da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 28201da177e4SLinus Torvalds xdr_error: 282116c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 28221da177e4SLinus Torvalds return status; 28231da177e4SLinus Torvalds } 28241da177e4SLinus Torvalds 28251da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 28261da177e4SLinus Torvalds { 28271da177e4SLinus Torvalds uint32_t *savep; 28281da177e4SLinus Torvalds uint32_t attrlen, 28291da177e4SLinus Torvalds bitmap[2] = {0}, 28301da177e4SLinus Torvalds type; 28311da177e4SLinus Torvalds int status, fmode = 0; 28321da177e4SLinus Torvalds 28331da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 28341da177e4SLinus Torvalds goto xdr_error; 28351da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 28361da177e4SLinus Torvalds goto xdr_error; 28371da177e4SLinus Torvalds 28381da177e4SLinus Torvalds fattr->bitmap[0] = bitmap[0]; 28391da177e4SLinus Torvalds fattr->bitmap[1] = bitmap[1]; 28401da177e4SLinus Torvalds 28411da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 28421da177e4SLinus Torvalds goto xdr_error; 28431da177e4SLinus Torvalds 28441da177e4SLinus Torvalds 28451da177e4SLinus Torvalds if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) 28461da177e4SLinus Torvalds goto xdr_error; 28471da177e4SLinus Torvalds fattr->type = nfs_type2fmt[type].nfs2type; 28481da177e4SLinus Torvalds fmode = nfs_type2fmt[type].mode; 28491da177e4SLinus Torvalds 28501da177e4SLinus Torvalds if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) 28511da177e4SLinus Torvalds goto xdr_error; 28521da177e4SLinus Torvalds if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) 28531da177e4SLinus Torvalds goto xdr_error; 28541da177e4SLinus Torvalds if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0) 28551da177e4SLinus Torvalds goto xdr_error; 28561da177e4SLinus Torvalds if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) 28571da177e4SLinus Torvalds goto xdr_error; 28581da177e4SLinus Torvalds if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) 28591da177e4SLinus Torvalds goto xdr_error; 28601da177e4SLinus Torvalds fattr->mode |= fmode; 28611da177e4SLinus Torvalds if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) 28621da177e4SLinus Torvalds goto xdr_error; 28631da177e4SLinus Torvalds if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0) 28641da177e4SLinus Torvalds goto xdr_error; 28651da177e4SLinus Torvalds if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0) 28661da177e4SLinus Torvalds goto xdr_error; 28671da177e4SLinus Torvalds if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) 28681da177e4SLinus Torvalds goto xdr_error; 28691da177e4SLinus Torvalds if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) 28701da177e4SLinus Torvalds goto xdr_error; 28711da177e4SLinus Torvalds if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) 28721da177e4SLinus Torvalds goto xdr_error; 28731da177e4SLinus Torvalds if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) 28741da177e4SLinus Torvalds goto xdr_error; 28751da177e4SLinus Torvalds if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) 28761da177e4SLinus Torvalds goto xdr_error; 287733801147STrond Myklebust if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) 28781da177e4SLinus Torvalds fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; 28791da177e4SLinus Torvalds xdr_error: 288016c32b71STrond Myklebust dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); 28811da177e4SLinus Torvalds return status; 28821da177e4SLinus Torvalds } 28831da177e4SLinus Torvalds 28841da177e4SLinus Torvalds 28851da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 28861da177e4SLinus Torvalds { 28871da177e4SLinus Torvalds uint32_t *savep; 28881da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 28891da177e4SLinus Torvalds int status; 28901da177e4SLinus Torvalds 28911da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 28921da177e4SLinus Torvalds goto xdr_error; 28931da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 28941da177e4SLinus Torvalds goto xdr_error; 28951da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 28961da177e4SLinus Torvalds goto xdr_error; 28971da177e4SLinus Torvalds 28981da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 28991da177e4SLinus Torvalds 29001da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 29011da177e4SLinus Torvalds goto xdr_error; 29021da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 29031da177e4SLinus Torvalds goto xdr_error; 29041da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 29051da177e4SLinus Torvalds goto xdr_error; 29061da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 29071da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 29081da177e4SLinus Torvalds goto xdr_error; 29091da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 29101da177e4SLinus Torvalds 29111da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 29121da177e4SLinus Torvalds xdr_error: 291316c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 29141da177e4SLinus Torvalds return status; 29151da177e4SLinus Torvalds } 29161da177e4SLinus Torvalds 29171da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 29181da177e4SLinus Torvalds { 29191da177e4SLinus Torvalds uint32_t *p; 29201da177e4SLinus Torvalds uint32_t len; 29211da177e4SLinus Torvalds int status; 29221da177e4SLinus Torvalds 29231da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 29241da177e4SLinus Torvalds if (status) 29251da177e4SLinus Torvalds return status; 29261da177e4SLinus Torvalds /* Zero handle first to allow comparisons */ 29271da177e4SLinus Torvalds memset(fh, 0, sizeof(*fh)); 29281da177e4SLinus Torvalds 29291da177e4SLinus Torvalds READ_BUF(4); 29301da177e4SLinus Torvalds READ32(len); 29311da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 29321da177e4SLinus Torvalds return -EIO; 29331da177e4SLinus Torvalds fh->size = len; 29341da177e4SLinus Torvalds READ_BUF(len); 29351da177e4SLinus Torvalds COPYMEM(fh->data, len); 29361da177e4SLinus Torvalds return 0; 29371da177e4SLinus Torvalds } 29381da177e4SLinus Torvalds 29391da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 29401da177e4SLinus Torvalds { 29411da177e4SLinus Torvalds int status; 29421da177e4SLinus Torvalds 29431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 29441da177e4SLinus Torvalds if (status) 29451da177e4SLinus Torvalds return status; 29461da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 29471da177e4SLinus Torvalds } 29481da177e4SLinus Torvalds 29491da177e4SLinus Torvalds /* 29501da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 29511da177e4SLinus Torvalds */ 29521da177e4SLinus Torvalds static int decode_lock_denied (struct xdr_stream *xdr, struct nfs_lock_denied *denied) 29531da177e4SLinus Torvalds { 29541da177e4SLinus Torvalds uint32_t *p; 29551da177e4SLinus Torvalds uint32_t namelen; 29561da177e4SLinus Torvalds 29571da177e4SLinus Torvalds READ_BUF(32); 29581da177e4SLinus Torvalds READ64(denied->offset); 29591da177e4SLinus Torvalds READ64(denied->length); 29601da177e4SLinus Torvalds READ32(denied->type); 29611da177e4SLinus Torvalds READ64(denied->owner.clientid); 29621da177e4SLinus Torvalds READ32(namelen); 29631da177e4SLinus Torvalds READ_BUF(namelen); 29641da177e4SLinus Torvalds if (namelen == 4) 29651da177e4SLinus Torvalds READ32(denied->owner.id); 29661da177e4SLinus Torvalds return -NFS4ERR_DENIED; 29671da177e4SLinus Torvalds } 29681da177e4SLinus Torvalds 29691da177e4SLinus Torvalds static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res) 29701da177e4SLinus Torvalds { 29711da177e4SLinus Torvalds uint32_t *p; 29721da177e4SLinus Torvalds int status; 29731da177e4SLinus Torvalds 29741da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 29751da177e4SLinus Torvalds if (status == 0) { 297606735b34STrond Myklebust READ_BUF(sizeof(res->u.stateid.data)); 297706735b34STrond Myklebust COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data)); 29781da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 29791da177e4SLinus Torvalds return decode_lock_denied(xdr, &res->u.denied); 29801da177e4SLinus Torvalds return status; 29811da177e4SLinus Torvalds } 29821da177e4SLinus Torvalds 29831da177e4SLinus Torvalds static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockres *res) 29841da177e4SLinus Torvalds { 29851da177e4SLinus Torvalds int status; 29861da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 29871da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 29881da177e4SLinus Torvalds return decode_lock_denied(xdr, &res->u.denied); 29891da177e4SLinus Torvalds return status; 29901da177e4SLinus Torvalds } 29911da177e4SLinus Torvalds 29921da177e4SLinus Torvalds static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res) 29931da177e4SLinus Torvalds { 29941da177e4SLinus Torvalds uint32_t *p; 29951da177e4SLinus Torvalds int status; 29961da177e4SLinus Torvalds 29971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 29981da177e4SLinus Torvalds if (status == 0) { 2999faf5f49cSTrond Myklebust READ_BUF(sizeof(res->u.stateid.data)); 3000faf5f49cSTrond Myklebust COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data)); 30011da177e4SLinus Torvalds } 30021da177e4SLinus Torvalds return status; 30031da177e4SLinus Torvalds } 30041da177e4SLinus Torvalds 30051da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 30061da177e4SLinus Torvalds { 30071da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 30081da177e4SLinus Torvalds } 30091da177e4SLinus Torvalds 30101da177e4SLinus Torvalds /* This is too sick! */ 30111da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 30121da177e4SLinus Torvalds { 30131da177e4SLinus Torvalds uint32_t *p; 30141da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 30151da177e4SLinus Torvalds 30161da177e4SLinus Torvalds READ_BUF(12); 30171da177e4SLinus Torvalds READ32(limit_type); 30181da177e4SLinus Torvalds switch (limit_type) { 30191da177e4SLinus Torvalds case 1: 30201da177e4SLinus Torvalds READ64(*maxsize); 30211da177e4SLinus Torvalds break; 30221da177e4SLinus Torvalds case 2: 30231da177e4SLinus Torvalds READ32(nblocks); 30241da177e4SLinus Torvalds READ32(blocksize); 30251da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 30261da177e4SLinus Torvalds } 30271da177e4SLinus Torvalds return 0; 30281da177e4SLinus Torvalds } 30291da177e4SLinus Torvalds 30301da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 30311da177e4SLinus Torvalds { 30321da177e4SLinus Torvalds uint32_t *p; 30331da177e4SLinus Torvalds uint32_t delegation_type; 30341da177e4SLinus Torvalds 30351da177e4SLinus Torvalds READ_BUF(4); 30361da177e4SLinus Torvalds READ32(delegation_type); 30371da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 30381da177e4SLinus Torvalds res->delegation_type = 0; 30391da177e4SLinus Torvalds return 0; 30401da177e4SLinus Torvalds } 30411da177e4SLinus Torvalds READ_BUF(20); 30421da177e4SLinus Torvalds COPYMEM(res->delegation.data, sizeof(res->delegation.data)); 30431da177e4SLinus Torvalds READ32(res->do_recall); 30441da177e4SLinus Torvalds switch (delegation_type) { 30451da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 30461da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 30471da177e4SLinus Torvalds break; 30481da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 30491da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 30501da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 30511da177e4SLinus Torvalds return -EIO; 30521da177e4SLinus Torvalds } 30531da177e4SLinus Torvalds return decode_ace(xdr, NULL, res->server->nfs4_state); 30541da177e4SLinus Torvalds } 30551da177e4SLinus Torvalds 30561da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 30571da177e4SLinus Torvalds { 30581da177e4SLinus Torvalds uint32_t *p; 30591da177e4SLinus Torvalds uint32_t bmlen; 30601da177e4SLinus Torvalds int status; 30611da177e4SLinus Torvalds 30621da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 30631da177e4SLinus Torvalds if (status) 30641da177e4SLinus Torvalds return status; 30651da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 30661da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 30671da177e4SLinus Torvalds 30681da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 30691da177e4SLinus Torvalds 30701da177e4SLinus Torvalds READ_BUF(8); 30711da177e4SLinus Torvalds READ32(res->rflags); 30721da177e4SLinus Torvalds READ32(bmlen); 30731da177e4SLinus Torvalds if (bmlen > 10) 30741da177e4SLinus Torvalds goto xdr_error; 30751da177e4SLinus Torvalds 30761da177e4SLinus Torvalds READ_BUF(bmlen << 2); 30771da177e4SLinus Torvalds p += bmlen; 30781da177e4SLinus Torvalds return decode_delegation(xdr, res); 30791da177e4SLinus Torvalds xdr_error: 308016c32b71STrond Myklebust dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); 30811da177e4SLinus Torvalds return -EIO; 30821da177e4SLinus Torvalds } 30831da177e4SLinus Torvalds 30841da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 30851da177e4SLinus Torvalds { 30861da177e4SLinus Torvalds uint32_t *p; 30871da177e4SLinus Torvalds int status; 30881da177e4SLinus Torvalds 30891da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 30901da177e4SLinus Torvalds if (status) 30911da177e4SLinus Torvalds return status; 30921da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 30931da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 30941da177e4SLinus Torvalds return 0; 30951da177e4SLinus Torvalds } 30961da177e4SLinus Torvalds 30971da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 30981da177e4SLinus Torvalds { 30991da177e4SLinus Torvalds uint32_t *p; 31001da177e4SLinus Torvalds int status; 31011da177e4SLinus Torvalds 31021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 31031da177e4SLinus Torvalds if (status) 31041da177e4SLinus Torvalds return status; 31051da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 31061da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 31071da177e4SLinus Torvalds return 0; 31081da177e4SLinus Torvalds } 31091da177e4SLinus Torvalds 31101da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 31111da177e4SLinus Torvalds { 31121da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 31131da177e4SLinus Torvalds } 31141da177e4SLinus Torvalds 31151da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 31161da177e4SLinus Torvalds { 31171da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 31181da177e4SLinus Torvalds } 31191da177e4SLinus Torvalds 31201da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 31211da177e4SLinus Torvalds { 31221da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 31231da177e4SLinus Torvalds uint32_t *p; 31241da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 31251da177e4SLinus Torvalds int status; 31261da177e4SLinus Torvalds 31271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 31281da177e4SLinus Torvalds if (status) 31291da177e4SLinus Torvalds return status; 31301da177e4SLinus Torvalds READ_BUF(8); 31311da177e4SLinus Torvalds READ32(eof); 31321da177e4SLinus Torvalds READ32(count); 31331da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 31341da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 31351da177e4SLinus Torvalds if (count > recvd) { 31361da177e4SLinus Torvalds printk(KERN_WARNING "NFS: server cheating in read reply: " 31371da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 31381da177e4SLinus Torvalds count = recvd; 31391da177e4SLinus Torvalds eof = 0; 31401da177e4SLinus Torvalds } 31411da177e4SLinus Torvalds xdr_read_pages(xdr, count); 31421da177e4SLinus Torvalds res->eof = eof; 31431da177e4SLinus Torvalds res->count = count; 31441da177e4SLinus Torvalds return 0; 31451da177e4SLinus Torvalds } 31461da177e4SLinus Torvalds 31471da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 31481da177e4SLinus Torvalds { 31491da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 31501da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 31511da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 31521da177e4SLinus Torvalds unsigned int nr, pglen = rcvbuf->page_len; 31531da177e4SLinus Torvalds uint32_t *end, *entry, *p, *kaddr; 31541da177e4SLinus Torvalds uint32_t len, attrlen; 31551da177e4SLinus Torvalds int hdrlen, recvd, status; 31561da177e4SLinus Torvalds 31571da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 31581da177e4SLinus Torvalds if (status) 31591da177e4SLinus Torvalds return status; 31601da177e4SLinus Torvalds READ_BUF(8); 31611da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 3162eadf4598STrond Myklebust dprintk("%s: verifier = 0x%x%x\n", 3163eadf4598STrond Myklebust __FUNCTION__, 3164eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3165eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3166eadf4598STrond Myklebust 31671da177e4SLinus Torvalds 31681da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 31691da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 31701da177e4SLinus Torvalds if (pglen > recvd) 31711da177e4SLinus Torvalds pglen = recvd; 31721da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 31731da177e4SLinus Torvalds 31741da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 31751da177e4SLinus Torvalds kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0); 31761da177e4SLinus Torvalds end = (uint32_t *) ((char *)p + pglen + readdir->pgbase); 31771da177e4SLinus Torvalds entry = p; 31781da177e4SLinus Torvalds for (nr = 0; *p++; nr++) { 31791da177e4SLinus Torvalds if (p + 3 > end) 31801da177e4SLinus Torvalds goto short_pkt; 3181eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 31821da177e4SLinus Torvalds p += 2; /* cookie */ 31831da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 31841da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 31851da177e4SLinus Torvalds printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); 31861da177e4SLinus Torvalds goto err_unmap; 31871da177e4SLinus Torvalds } 3188eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 31891da177e4SLinus Torvalds p += XDR_QUADLEN(len); 31901da177e4SLinus Torvalds if (p + 1 > end) 31911da177e4SLinus Torvalds goto short_pkt; 31921da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 31931da177e4SLinus Torvalds p += len; 31941da177e4SLinus Torvalds if (p + 1 > end) 31951da177e4SLinus Torvalds goto short_pkt; 31961da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 31971da177e4SLinus Torvalds p += attrlen; /* attributes */ 31981da177e4SLinus Torvalds if (p + 2 > end) 31991da177e4SLinus Torvalds goto short_pkt; 32001da177e4SLinus Torvalds entry = p; 32011da177e4SLinus Torvalds } 32021da177e4SLinus Torvalds if (!nr && (entry[0] != 0 || entry[1] == 0)) 32031da177e4SLinus Torvalds goto short_pkt; 32041da177e4SLinus Torvalds out: 32051da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 32061da177e4SLinus Torvalds return 0; 32071da177e4SLinus Torvalds short_pkt: 3208eadf4598STrond Myklebust dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); 32091da177e4SLinus Torvalds entry[0] = entry[1] = 0; 32101da177e4SLinus Torvalds /* truncate listing ? */ 32111da177e4SLinus Torvalds if (!nr) { 32121da177e4SLinus Torvalds printk(KERN_NOTICE "NFS: readdir reply truncated!\n"); 32131da177e4SLinus Torvalds entry[1] = 1; 32141da177e4SLinus Torvalds } 32151da177e4SLinus Torvalds goto out; 32161da177e4SLinus Torvalds err_unmap: 32171da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 32181da177e4SLinus Torvalds return -errno_NFSERR_IO; 32191da177e4SLinus Torvalds } 32201da177e4SLinus Torvalds 32211da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 32221da177e4SLinus Torvalds { 32231da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 32241da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 32251da177e4SLinus Torvalds int hdrlen, len, recvd; 32261da177e4SLinus Torvalds uint32_t *p; 32271da177e4SLinus Torvalds char *kaddr; 32281da177e4SLinus Torvalds int status; 32291da177e4SLinus Torvalds 32301da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 32311da177e4SLinus Torvalds if (status) 32321da177e4SLinus Torvalds return status; 32331da177e4SLinus Torvalds 32341da177e4SLinus Torvalds /* Convert length of symlink */ 32351da177e4SLinus Torvalds READ_BUF(4); 32361da177e4SLinus Torvalds READ32(len); 32371da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 32381da177e4SLinus Torvalds dprintk(KERN_WARNING "nfs: server returned giant symlink!\n"); 32391da177e4SLinus Torvalds return -ENAMETOOLONG; 32401da177e4SLinus Torvalds } 32411da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 32421da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 32431da177e4SLinus Torvalds if (recvd < len) { 32441da177e4SLinus Torvalds printk(KERN_WARNING "NFS: server cheating in readlink reply: " 32451da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 32461da177e4SLinus Torvalds return -EIO; 32471da177e4SLinus Torvalds } 32481da177e4SLinus Torvalds xdr_read_pages(xdr, len); 32491da177e4SLinus Torvalds /* 32501da177e4SLinus Torvalds * The XDR encode routine has set things up so that 32511da177e4SLinus Torvalds * the link text will be copied directly into the 32521da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 32531da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 32541da177e4SLinus Torvalds * null-termination). 32551da177e4SLinus Torvalds */ 32561da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 32571da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 32581da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 32591da177e4SLinus Torvalds return 0; 32601da177e4SLinus Torvalds } 32611da177e4SLinus Torvalds 32621da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 32631da177e4SLinus Torvalds { 32641da177e4SLinus Torvalds int status; 32651da177e4SLinus Torvalds 32661da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 32671da177e4SLinus Torvalds if (status) 32681da177e4SLinus Torvalds goto out; 32691da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 32701da177e4SLinus Torvalds out: 32711da177e4SLinus Torvalds return status; 32721da177e4SLinus Torvalds } 32731da177e4SLinus Torvalds 32741da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 32751da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 32761da177e4SLinus Torvalds { 32771da177e4SLinus Torvalds int status; 32781da177e4SLinus Torvalds 32791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 32801da177e4SLinus Torvalds if (status) 32811da177e4SLinus Torvalds goto out; 32821da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 32831da177e4SLinus Torvalds goto out; 32841da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 32851da177e4SLinus Torvalds out: 32861da177e4SLinus Torvalds return status; 32871da177e4SLinus Torvalds } 32881da177e4SLinus Torvalds 32891da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 32901da177e4SLinus Torvalds { 32911da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 32921da177e4SLinus Torvalds } 32931da177e4SLinus Torvalds 329456ae19f3STrond Myklebust static int 329556ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 329656ae19f3STrond Myklebust { 329756ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 329856ae19f3STrond Myklebust } 329956ae19f3STrond Myklebust 3300029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3301029d105eSJ. Bruce Fields size_t *acl_len) 3302029d105eSJ. Bruce Fields { 3303029d105eSJ. Bruce Fields uint32_t *savep; 3304029d105eSJ. Bruce Fields uint32_t attrlen, 3305029d105eSJ. Bruce Fields bitmap[2] = {0}; 3306029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 3307029d105eSJ. Bruce Fields int status; 3308029d105eSJ. Bruce Fields 3309029d105eSJ. Bruce Fields *acl_len = 0; 3310029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3311029d105eSJ. Bruce Fields goto out; 3312029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3313029d105eSJ. Bruce Fields goto out; 3314029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3315029d105eSJ. Bruce Fields goto out; 3316029d105eSJ. Bruce Fields 3317029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3318029d105eSJ. Bruce Fields return -EIO; 3319029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3320029d105eSJ. Bruce Fields int hdrlen, recvd; 3321029d105eSJ. Bruce Fields 3322029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 3323029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 3324029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3325029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 3326029d105eSJ. Bruce Fields if (attrlen > recvd) { 3327029d105eSJ. Bruce Fields printk(KERN_WARNING "NFS: server cheating in getattr" 3328029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 3329029d105eSJ. Bruce Fields attrlen, recvd); 3330029d105eSJ. Bruce Fields return -EINVAL; 3331029d105eSJ. Bruce Fields } 3332029d105eSJ. Bruce Fields if (attrlen <= *acl_len) 3333029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 3334029d105eSJ. Bruce Fields *acl_len = attrlen; 33358c233cf9SJ. Bruce Fields } else 33368c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 3337029d105eSJ. Bruce Fields 3338029d105eSJ. Bruce Fields out: 3339029d105eSJ. Bruce Fields return status; 3340029d105eSJ. Bruce Fields } 3341029d105eSJ. Bruce Fields 33421da177e4SLinus Torvalds static int 33431da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 33441da177e4SLinus Torvalds { 33451da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 33461da177e4SLinus Torvalds } 33471da177e4SLinus Torvalds 33481da177e4SLinus Torvalds static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) 33491da177e4SLinus Torvalds { 33501da177e4SLinus Torvalds uint32_t *p; 33511da177e4SLinus Torvalds uint32_t bmlen; 33521da177e4SLinus Torvalds int status; 33531da177e4SLinus Torvalds 33541da177e4SLinus Torvalds 33551da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 33561da177e4SLinus Torvalds if (status) 33571da177e4SLinus Torvalds return status; 33581da177e4SLinus Torvalds READ_BUF(4); 33591da177e4SLinus Torvalds READ32(bmlen); 33601da177e4SLinus Torvalds READ_BUF(bmlen << 2); 33611da177e4SLinus Torvalds return 0; 33621da177e4SLinus Torvalds } 33631da177e4SLinus Torvalds 33641da177e4SLinus Torvalds static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp) 33651da177e4SLinus Torvalds { 33661da177e4SLinus Torvalds uint32_t *p; 33671da177e4SLinus Torvalds uint32_t opnum; 33681da177e4SLinus Torvalds int32_t nfserr; 33691da177e4SLinus Torvalds 33701da177e4SLinus Torvalds READ_BUF(8); 33711da177e4SLinus Torvalds READ32(opnum); 33721da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 33731da177e4SLinus Torvalds printk(KERN_NOTICE 33741da177e4SLinus Torvalds "nfs4_decode_setclientid: Server returned operation" 33751da177e4SLinus Torvalds " %d\n", opnum); 33761da177e4SLinus Torvalds return -EIO; 33771da177e4SLinus Torvalds } 33781da177e4SLinus Torvalds READ32(nfserr); 33791da177e4SLinus Torvalds if (nfserr == NFS_OK) { 33801da177e4SLinus Torvalds READ_BUF(8 + sizeof(clp->cl_confirm.data)); 33811da177e4SLinus Torvalds READ64(clp->cl_clientid); 33821da177e4SLinus Torvalds COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data)); 33831da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 33841da177e4SLinus Torvalds uint32_t len; 33851da177e4SLinus Torvalds 33861da177e4SLinus Torvalds /* skip netid string */ 33871da177e4SLinus Torvalds READ_BUF(4); 33881da177e4SLinus Torvalds READ32(len); 33891da177e4SLinus Torvalds READ_BUF(len); 33901da177e4SLinus Torvalds 33911da177e4SLinus Torvalds /* skip uaddr string */ 33921da177e4SLinus Torvalds READ_BUF(4); 33931da177e4SLinus Torvalds READ32(len); 33941da177e4SLinus Torvalds READ_BUF(len); 33951da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 33961da177e4SLinus Torvalds } else 33971da177e4SLinus Torvalds return -nfs_stat_to_errno(nfserr); 33981da177e4SLinus Torvalds 33991da177e4SLinus Torvalds return 0; 34001da177e4SLinus Torvalds } 34011da177e4SLinus Torvalds 34021da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 34031da177e4SLinus Torvalds { 34041da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 34051da177e4SLinus Torvalds } 34061da177e4SLinus Torvalds 34071da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 34081da177e4SLinus Torvalds { 34091da177e4SLinus Torvalds uint32_t *p; 34101da177e4SLinus Torvalds int status; 34111da177e4SLinus Torvalds 34121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 34131da177e4SLinus Torvalds if (status) 34141da177e4SLinus Torvalds return status; 34151da177e4SLinus Torvalds 34161da177e4SLinus Torvalds READ_BUF(16); 34171da177e4SLinus Torvalds READ32(res->count); 34181da177e4SLinus Torvalds READ32(res->verf->committed); 34191da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 34201da177e4SLinus Torvalds return 0; 34211da177e4SLinus Torvalds } 34221da177e4SLinus Torvalds 34231da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 34241da177e4SLinus Torvalds { 34251da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 34261da177e4SLinus Torvalds } 34271da177e4SLinus Torvalds 34281da177e4SLinus Torvalds /* 34291da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 34301da177e4SLinus Torvalds */ 34311da177e4SLinus Torvalds static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res) 34321da177e4SLinus Torvalds { 34331da177e4SLinus Torvalds struct xdr_stream xdr; 34341da177e4SLinus Torvalds struct compound_hdr hdr; 34351da177e4SLinus Torvalds int status; 34361da177e4SLinus Torvalds 34371da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 34381da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 34391da177e4SLinus Torvalds if (status) 34401da177e4SLinus Torvalds goto out; 34411da177e4SLinus Torvalds status = decode_putfh(&xdr); 34421da177e4SLinus Torvalds if (status) 34431da177e4SLinus Torvalds goto out; 34441da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 3445516a6af6STrond Myklebust if (status != 0) 3446516a6af6STrond Myklebust goto out; 3447516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 34481da177e4SLinus Torvalds out: 34491da177e4SLinus Torvalds return status; 34501da177e4SLinus Torvalds } 34511da177e4SLinus Torvalds 34521da177e4SLinus Torvalds /* 34531da177e4SLinus Torvalds * END OF "GENERIC" DECODE ROUTINES. 34541da177e4SLinus Torvalds */ 34551da177e4SLinus Torvalds 34561da177e4SLinus Torvalds /* 34571da177e4SLinus Torvalds * Decode ACCESS response 34581da177e4SLinus Torvalds */ 34591da177e4SLinus Torvalds static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res) 34601da177e4SLinus Torvalds { 34611da177e4SLinus Torvalds struct xdr_stream xdr; 34621da177e4SLinus Torvalds struct compound_hdr hdr; 34631da177e4SLinus Torvalds int status; 34641da177e4SLinus Torvalds 34651da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 34661da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 34671da177e4SLinus Torvalds goto out; 34681da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) == 0) 34691da177e4SLinus Torvalds status = decode_access(&xdr, res); 34701da177e4SLinus Torvalds out: 34711da177e4SLinus Torvalds return status; 34721da177e4SLinus Torvalds } 34731da177e4SLinus Torvalds 34741da177e4SLinus Torvalds /* 34751da177e4SLinus Torvalds * Decode LOOKUP response 34761da177e4SLinus Torvalds */ 34771da177e4SLinus Torvalds static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res) 34781da177e4SLinus Torvalds { 34791da177e4SLinus Torvalds struct xdr_stream xdr; 34801da177e4SLinus Torvalds struct compound_hdr hdr; 34811da177e4SLinus Torvalds int status; 34821da177e4SLinus Torvalds 34831da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 34841da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 34851da177e4SLinus Torvalds goto out; 34861da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 34871da177e4SLinus Torvalds goto out; 34881da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 34891da177e4SLinus Torvalds goto out; 34901da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 34911da177e4SLinus Torvalds goto out; 34921da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 34931da177e4SLinus Torvalds out: 34941da177e4SLinus Torvalds return status; 34951da177e4SLinus Torvalds } 34961da177e4SLinus Torvalds 34971da177e4SLinus Torvalds /* 34981da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 34991da177e4SLinus Torvalds */ 35001da177e4SLinus Torvalds static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res) 35011da177e4SLinus Torvalds { 35021da177e4SLinus Torvalds struct xdr_stream xdr; 35031da177e4SLinus Torvalds struct compound_hdr hdr; 35041da177e4SLinus Torvalds int status; 35051da177e4SLinus Torvalds 35061da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 35071da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 35081da177e4SLinus Torvalds goto out; 35091da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 35101da177e4SLinus Torvalds goto out; 35111da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 35121da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 35131da177e4SLinus Torvalds out: 35141da177e4SLinus Torvalds return status; 35151da177e4SLinus Torvalds } 35161da177e4SLinus Torvalds 35171da177e4SLinus Torvalds /* 35181da177e4SLinus Torvalds * Decode REMOVE response 35191da177e4SLinus Torvalds */ 352016e42959STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_remove_res *res) 35211da177e4SLinus Torvalds { 35221da177e4SLinus Torvalds struct xdr_stream xdr; 35231da177e4SLinus Torvalds struct compound_hdr hdr; 35241da177e4SLinus Torvalds int status; 35251da177e4SLinus Torvalds 35261da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 35271da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 35281da177e4SLinus Torvalds goto out; 352916e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 353016e42959STrond Myklebust goto out; 353116e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 353216e42959STrond Myklebust goto out; 353316e42959STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 35341da177e4SLinus Torvalds out: 35351da177e4SLinus Torvalds return status; 35361da177e4SLinus Torvalds } 35371da177e4SLinus Torvalds 35381da177e4SLinus Torvalds /* 35391da177e4SLinus Torvalds * Decode RENAME response 35401da177e4SLinus Torvalds */ 35411da177e4SLinus Torvalds static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res) 35421da177e4SLinus Torvalds { 35431da177e4SLinus Torvalds struct xdr_stream xdr; 35441da177e4SLinus Torvalds struct compound_hdr hdr; 35451da177e4SLinus Torvalds int status; 35461da177e4SLinus Torvalds 35471da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 35481da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 35491da177e4SLinus Torvalds goto out; 35501da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 35511da177e4SLinus Torvalds goto out; 35521da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 35531da177e4SLinus Torvalds goto out; 35541da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 35551da177e4SLinus Torvalds goto out; 35566caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 35576caf2c82STrond Myklebust goto out; 35586caf2c82STrond Myklebust /* Current FH is target directory */ 35596caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 35606caf2c82STrond Myklebust goto out; 35616caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 35626caf2c82STrond Myklebust goto out; 35636caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 35641da177e4SLinus Torvalds out: 35651da177e4SLinus Torvalds return status; 35661da177e4SLinus Torvalds } 35671da177e4SLinus Torvalds 35681da177e4SLinus Torvalds /* 35691da177e4SLinus Torvalds * Decode LINK response 35701da177e4SLinus Torvalds */ 357191ba2eeeSTrond Myklebust static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res) 35721da177e4SLinus Torvalds { 35731da177e4SLinus Torvalds struct xdr_stream xdr; 35741da177e4SLinus Torvalds struct compound_hdr hdr; 35751da177e4SLinus Torvalds int status; 35761da177e4SLinus Torvalds 35771da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 35781da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 35791da177e4SLinus Torvalds goto out; 35801da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 35811da177e4SLinus Torvalds goto out; 35821da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 35831da177e4SLinus Torvalds goto out; 35841da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 35851da177e4SLinus Torvalds goto out; 358691ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 358791ba2eeeSTrond Myklebust goto out; 358891ba2eeeSTrond Myklebust /* 358991ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 359091ba2eeeSTrond Myklebust * filehandle. 359191ba2eeeSTrond Myklebust */ 359291ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 359391ba2eeeSTrond Myklebust goto out; 359491ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 359591ba2eeeSTrond Myklebust goto out; 359691ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 35971da177e4SLinus Torvalds out: 35981da177e4SLinus Torvalds return status; 35991da177e4SLinus Torvalds } 36001da177e4SLinus Torvalds 36011da177e4SLinus Torvalds /* 36021da177e4SLinus Torvalds * Decode CREATE response 36031da177e4SLinus Torvalds */ 36041da177e4SLinus Torvalds static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res) 36051da177e4SLinus Torvalds { 36061da177e4SLinus Torvalds struct xdr_stream xdr; 36071da177e4SLinus Torvalds struct compound_hdr hdr; 36081da177e4SLinus Torvalds int status; 36091da177e4SLinus Torvalds 36101da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36111da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 36121da177e4SLinus Torvalds goto out; 36131da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 36141da177e4SLinus Torvalds goto out; 361556ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 361656ae19f3STrond Myklebust goto out; 36171da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 36181da177e4SLinus Torvalds goto out; 36191da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 36201da177e4SLinus Torvalds goto out; 362156ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 362256ae19f3STrond Myklebust goto out; 362356ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 362456ae19f3STrond Myklebust goto out; 362556ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 36261da177e4SLinus Torvalds out: 36271da177e4SLinus Torvalds return status; 36281da177e4SLinus Torvalds } 36291da177e4SLinus Torvalds 36301da177e4SLinus Torvalds /* 36311da177e4SLinus Torvalds * Decode SYMLINK response 36321da177e4SLinus Torvalds */ 36331da177e4SLinus Torvalds static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res) 36341da177e4SLinus Torvalds { 36351da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 36361da177e4SLinus Torvalds } 36371da177e4SLinus Torvalds 36381da177e4SLinus Torvalds /* 36391da177e4SLinus Torvalds * Decode GETATTR response 36401da177e4SLinus Torvalds */ 36411da177e4SLinus Torvalds static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res) 36421da177e4SLinus Torvalds { 36431da177e4SLinus Torvalds struct xdr_stream xdr; 36441da177e4SLinus Torvalds struct compound_hdr hdr; 36451da177e4SLinus Torvalds int status; 36461da177e4SLinus Torvalds 36471da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36481da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 36491da177e4SLinus Torvalds if (status) 36501da177e4SLinus Torvalds goto out; 36511da177e4SLinus Torvalds status = decode_putfh(&xdr); 36521da177e4SLinus Torvalds if (status) 36531da177e4SLinus Torvalds goto out; 36541da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 36551da177e4SLinus Torvalds out: 36561da177e4SLinus Torvalds return status; 36571da177e4SLinus Torvalds 36581da177e4SLinus Torvalds } 36591da177e4SLinus Torvalds 366023ec6965SJ. Bruce Fields /* 366123ec6965SJ. Bruce Fields * Encode an SETACL request 366223ec6965SJ. Bruce Fields */ 366323ec6965SJ. Bruce Fields static int 366423ec6965SJ. Bruce Fields nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args) 366523ec6965SJ. Bruce Fields { 366623ec6965SJ. Bruce Fields struct xdr_stream xdr; 366723ec6965SJ. Bruce Fields struct compound_hdr hdr = { 366823ec6965SJ. Bruce Fields .nops = 2, 366923ec6965SJ. Bruce Fields }; 367023ec6965SJ. Bruce Fields int status; 367123ec6965SJ. Bruce Fields 367223ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 367323ec6965SJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 367423ec6965SJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 367523ec6965SJ. Bruce Fields if (status) 367623ec6965SJ. Bruce Fields goto out; 367723ec6965SJ. Bruce Fields status = encode_setacl(&xdr, args); 367823ec6965SJ. Bruce Fields out: 367923ec6965SJ. Bruce Fields return status; 368023ec6965SJ. Bruce Fields } 368123ec6965SJ. Bruce Fields /* 368223ec6965SJ. Bruce Fields * Decode SETACL response 368323ec6965SJ. Bruce Fields */ 368423ec6965SJ. Bruce Fields static int 368523ec6965SJ. Bruce Fields nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res) 368623ec6965SJ. Bruce Fields { 368723ec6965SJ. Bruce Fields struct xdr_stream xdr; 368823ec6965SJ. Bruce Fields struct compound_hdr hdr; 368923ec6965SJ. Bruce Fields int status; 369023ec6965SJ. Bruce Fields 369123ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 369223ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 369323ec6965SJ. Bruce Fields if (status) 369423ec6965SJ. Bruce Fields goto out; 369523ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 369623ec6965SJ. Bruce Fields if (status) 369723ec6965SJ. Bruce Fields goto out; 369823ec6965SJ. Bruce Fields status = decode_setattr(&xdr, res); 369923ec6965SJ. Bruce Fields out: 370023ec6965SJ. Bruce Fields return status; 370123ec6965SJ. Bruce Fields } 37021da177e4SLinus Torvalds 37031da177e4SLinus Torvalds /* 3704029d105eSJ. Bruce Fields * Decode GETACL response 3705029d105eSJ. Bruce Fields */ 3706029d105eSJ. Bruce Fields static int 3707029d105eSJ. Bruce Fields nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len) 3708029d105eSJ. Bruce Fields { 3709029d105eSJ. Bruce Fields struct xdr_stream xdr; 3710029d105eSJ. Bruce Fields struct compound_hdr hdr; 3711029d105eSJ. Bruce Fields int status; 3712029d105eSJ. Bruce Fields 3713029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3714029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 3715029d105eSJ. Bruce Fields if (status) 3716029d105eSJ. Bruce Fields goto out; 3717029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 3718029d105eSJ. Bruce Fields if (status) 3719029d105eSJ. Bruce Fields goto out; 3720029d105eSJ. Bruce Fields status = decode_getacl(&xdr, rqstp, acl_len); 3721029d105eSJ. Bruce Fields 3722029d105eSJ. Bruce Fields out: 3723029d105eSJ. Bruce Fields return status; 3724029d105eSJ. Bruce Fields } 3725029d105eSJ. Bruce Fields 3726029d105eSJ. Bruce Fields /* 37271da177e4SLinus Torvalds * Decode CLOSE response 37281da177e4SLinus Torvalds */ 37291da177e4SLinus Torvalds static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res) 37301da177e4SLinus Torvalds { 37311da177e4SLinus Torvalds struct xdr_stream xdr; 37321da177e4SLinus Torvalds struct compound_hdr hdr; 37331da177e4SLinus Torvalds int status; 37341da177e4SLinus Torvalds 37351da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37361da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37371da177e4SLinus Torvalds if (status) 37381da177e4SLinus Torvalds goto out; 37391da177e4SLinus Torvalds status = decode_putfh(&xdr); 37401da177e4SLinus Torvalds if (status) 37411da177e4SLinus Torvalds goto out; 37421da177e4SLinus Torvalds status = decode_close(&xdr, res); 3743516a6af6STrond Myklebust if (status != 0) 3744516a6af6STrond Myklebust goto out; 3745516a6af6STrond Myklebust /* 3746516a6af6STrond Myklebust * Note: Server may do delete on close for this file 3747516a6af6STrond Myklebust * in which case the getattr call will fail with 3748516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 3749516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 3750516a6af6STrond Myklebust */ 3751516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 37521da177e4SLinus Torvalds out: 37531da177e4SLinus Torvalds return status; 37541da177e4SLinus Torvalds } 37551da177e4SLinus Torvalds 37561da177e4SLinus Torvalds /* 37571da177e4SLinus Torvalds * Decode OPEN response 37581da177e4SLinus Torvalds */ 37591da177e4SLinus Torvalds static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res) 37601da177e4SLinus Torvalds { 37611da177e4SLinus Torvalds struct xdr_stream xdr; 37621da177e4SLinus Torvalds struct compound_hdr hdr; 37631da177e4SLinus Torvalds int status; 37641da177e4SLinus Torvalds 37651da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37661da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37671da177e4SLinus Torvalds if (status) 37681da177e4SLinus Torvalds goto out; 37691da177e4SLinus Torvalds status = decode_putfh(&xdr); 37701da177e4SLinus Torvalds if (status) 37711da177e4SLinus Torvalds goto out; 377256ae19f3STrond Myklebust status = decode_savefh(&xdr); 377356ae19f3STrond Myklebust if (status) 377456ae19f3STrond Myklebust goto out; 37751da177e4SLinus Torvalds status = decode_open(&xdr, res); 37761da177e4SLinus Torvalds if (status) 37771da177e4SLinus Torvalds goto out; 37781da177e4SLinus Torvalds status = decode_getfh(&xdr, &res->fh); 37791da177e4SLinus Torvalds if (status) 37801da177e4SLinus Torvalds goto out; 378156ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 378256ae19f3STrond Myklebust goto out; 378356ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 378456ae19f3STrond Myklebust goto out; 378556ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 37861da177e4SLinus Torvalds out: 37871da177e4SLinus Torvalds return status; 37881da177e4SLinus Torvalds } 37891da177e4SLinus Torvalds 37901da177e4SLinus Torvalds /* 37911da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 37921da177e4SLinus Torvalds */ 37931da177e4SLinus Torvalds static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res) 37941da177e4SLinus Torvalds { 37951da177e4SLinus Torvalds struct xdr_stream xdr; 37961da177e4SLinus Torvalds struct compound_hdr hdr; 37971da177e4SLinus Torvalds int status; 37981da177e4SLinus Torvalds 37991da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38001da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 38011da177e4SLinus Torvalds if (status) 38021da177e4SLinus Torvalds goto out; 38031da177e4SLinus Torvalds status = decode_putfh(&xdr); 38041da177e4SLinus Torvalds if (status) 38051da177e4SLinus Torvalds goto out; 38061da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 38071da177e4SLinus Torvalds out: 38081da177e4SLinus Torvalds return status; 38091da177e4SLinus Torvalds } 38101da177e4SLinus Torvalds 38111da177e4SLinus Torvalds /* 38121da177e4SLinus Torvalds * Decode OPEN response 38131da177e4SLinus Torvalds */ 38141da177e4SLinus Torvalds static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res) 38151da177e4SLinus Torvalds { 38161da177e4SLinus Torvalds struct xdr_stream xdr; 38171da177e4SLinus Torvalds struct compound_hdr hdr; 38181da177e4SLinus Torvalds int status; 38191da177e4SLinus Torvalds 38201da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38211da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 38221da177e4SLinus Torvalds if (status) 38231da177e4SLinus Torvalds goto out; 38241da177e4SLinus Torvalds status = decode_putfh(&xdr); 38251da177e4SLinus Torvalds if (status) 38261da177e4SLinus Torvalds goto out; 38271da177e4SLinus Torvalds status = decode_open(&xdr, res); 38281da177e4SLinus Torvalds out: 38291da177e4SLinus Torvalds return status; 38301da177e4SLinus Torvalds } 38311da177e4SLinus Torvalds 38321da177e4SLinus Torvalds /* 38331da177e4SLinus Torvalds * Decode SETATTR response 38341da177e4SLinus Torvalds */ 38351da177e4SLinus Torvalds static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res) 38361da177e4SLinus Torvalds { 38371da177e4SLinus Torvalds struct xdr_stream xdr; 38381da177e4SLinus Torvalds struct compound_hdr hdr; 38391da177e4SLinus Torvalds int status; 38401da177e4SLinus Torvalds 38411da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38421da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 38431da177e4SLinus Torvalds if (status) 38441da177e4SLinus Torvalds goto out; 38451da177e4SLinus Torvalds status = decode_putfh(&xdr); 38461da177e4SLinus Torvalds if (status) 38471da177e4SLinus Torvalds goto out; 38481da177e4SLinus Torvalds status = decode_setattr(&xdr, res); 38491da177e4SLinus Torvalds if (status) 38501da177e4SLinus Torvalds goto out; 38511da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38521da177e4SLinus Torvalds if (status == NFS4ERR_DELAY) 38531da177e4SLinus Torvalds status = 0; 38541da177e4SLinus Torvalds out: 38551da177e4SLinus Torvalds return status; 38561da177e4SLinus Torvalds } 38571da177e4SLinus Torvalds 38581da177e4SLinus Torvalds /* 38591da177e4SLinus Torvalds * Decode LOCK response 38601da177e4SLinus Torvalds */ 38611da177e4SLinus Torvalds static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res) 38621da177e4SLinus Torvalds { 38631da177e4SLinus Torvalds struct xdr_stream xdr; 38641da177e4SLinus Torvalds struct compound_hdr hdr; 38651da177e4SLinus Torvalds int status; 38661da177e4SLinus Torvalds 38671da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38681da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 38691da177e4SLinus Torvalds if (status) 38701da177e4SLinus Torvalds goto out; 38711da177e4SLinus Torvalds status = decode_putfh(&xdr); 38721da177e4SLinus Torvalds if (status) 38731da177e4SLinus Torvalds goto out; 38741da177e4SLinus Torvalds status = decode_lock(&xdr, res); 38751da177e4SLinus Torvalds out: 38761da177e4SLinus Torvalds return status; 38771da177e4SLinus Torvalds } 38781da177e4SLinus Torvalds 38791da177e4SLinus Torvalds /* 38801da177e4SLinus Torvalds * Decode LOCKT response 38811da177e4SLinus Torvalds */ 38821da177e4SLinus Torvalds static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res) 38831da177e4SLinus Torvalds { 38841da177e4SLinus Torvalds struct xdr_stream xdr; 38851da177e4SLinus Torvalds struct compound_hdr hdr; 38861da177e4SLinus Torvalds int status; 38871da177e4SLinus Torvalds 38881da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38891da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 38901da177e4SLinus Torvalds if (status) 38911da177e4SLinus Torvalds goto out; 38921da177e4SLinus Torvalds status = decode_putfh(&xdr); 38931da177e4SLinus Torvalds if (status) 38941da177e4SLinus Torvalds goto out; 38951da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 38961da177e4SLinus Torvalds out: 38971da177e4SLinus Torvalds return status; 38981da177e4SLinus Torvalds } 38991da177e4SLinus Torvalds 39001da177e4SLinus Torvalds /* 39011da177e4SLinus Torvalds * Decode LOCKU response 39021da177e4SLinus Torvalds */ 39031da177e4SLinus Torvalds static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res) 39041da177e4SLinus Torvalds { 39051da177e4SLinus Torvalds struct xdr_stream xdr; 39061da177e4SLinus Torvalds struct compound_hdr hdr; 39071da177e4SLinus Torvalds int status; 39081da177e4SLinus Torvalds 39091da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39101da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39111da177e4SLinus Torvalds if (status) 39121da177e4SLinus Torvalds goto out; 39131da177e4SLinus Torvalds status = decode_putfh(&xdr); 39141da177e4SLinus Torvalds if (status) 39151da177e4SLinus Torvalds goto out; 39161da177e4SLinus Torvalds status = decode_locku(&xdr, res); 39171da177e4SLinus Torvalds out: 39181da177e4SLinus Torvalds return status; 39191da177e4SLinus Torvalds } 39201da177e4SLinus Torvalds 39211da177e4SLinus Torvalds /* 39221da177e4SLinus Torvalds * Decode READLINK response 39231da177e4SLinus Torvalds */ 39241da177e4SLinus Torvalds static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *res) 39251da177e4SLinus Torvalds { 39261da177e4SLinus Torvalds struct xdr_stream xdr; 39271da177e4SLinus Torvalds struct compound_hdr hdr; 39281da177e4SLinus Torvalds int status; 39291da177e4SLinus Torvalds 39301da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39311da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39321da177e4SLinus Torvalds if (status) 39331da177e4SLinus Torvalds goto out; 39341da177e4SLinus Torvalds status = decode_putfh(&xdr); 39351da177e4SLinus Torvalds if (status) 39361da177e4SLinus Torvalds goto out; 39371da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 39381da177e4SLinus Torvalds out: 39391da177e4SLinus Torvalds return status; 39401da177e4SLinus Torvalds } 39411da177e4SLinus Torvalds 39421da177e4SLinus Torvalds /* 39431da177e4SLinus Torvalds * Decode READDIR response 39441da177e4SLinus Torvalds */ 39451da177e4SLinus Torvalds static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *res) 39461da177e4SLinus Torvalds { 39471da177e4SLinus Torvalds struct xdr_stream xdr; 39481da177e4SLinus Torvalds struct compound_hdr hdr; 39491da177e4SLinus Torvalds int status; 39501da177e4SLinus Torvalds 39511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39531da177e4SLinus Torvalds if (status) 39541da177e4SLinus Torvalds goto out; 39551da177e4SLinus Torvalds status = decode_putfh(&xdr); 39561da177e4SLinus Torvalds if (status) 39571da177e4SLinus Torvalds goto out; 39581da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 39591da177e4SLinus Torvalds out: 39601da177e4SLinus Torvalds return status; 39611da177e4SLinus Torvalds } 39621da177e4SLinus Torvalds 39631da177e4SLinus Torvalds /* 39641da177e4SLinus Torvalds * Decode Read response 39651da177e4SLinus Torvalds */ 39661da177e4SLinus Torvalds static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *res) 39671da177e4SLinus Torvalds { 39681da177e4SLinus Torvalds struct xdr_stream xdr; 39691da177e4SLinus Torvalds struct compound_hdr hdr; 39701da177e4SLinus Torvalds int status; 39711da177e4SLinus Torvalds 39721da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39731da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39741da177e4SLinus Torvalds if (status) 39751da177e4SLinus Torvalds goto out; 39761da177e4SLinus Torvalds status = decode_putfh(&xdr); 39771da177e4SLinus Torvalds if (status) 39781da177e4SLinus Torvalds goto out; 39791da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 39801da177e4SLinus Torvalds if (!status) 39811da177e4SLinus Torvalds status = res->count; 39821da177e4SLinus Torvalds out: 39831da177e4SLinus Torvalds return status; 39841da177e4SLinus Torvalds } 39851da177e4SLinus Torvalds 39861da177e4SLinus Torvalds /* 39871da177e4SLinus Torvalds * Decode WRITE response 39881da177e4SLinus Torvalds */ 39891da177e4SLinus Torvalds static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res) 39901da177e4SLinus Torvalds { 39911da177e4SLinus Torvalds struct xdr_stream xdr; 39921da177e4SLinus Torvalds struct compound_hdr hdr; 39931da177e4SLinus Torvalds int status; 39941da177e4SLinus Torvalds 39951da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39961da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39971da177e4SLinus Torvalds if (status) 39981da177e4SLinus Torvalds goto out; 39991da177e4SLinus Torvalds status = decode_putfh(&xdr); 40001da177e4SLinus Torvalds if (status) 40011da177e4SLinus Torvalds goto out; 40021da177e4SLinus Torvalds status = decode_write(&xdr, res); 40034f9838c7STrond Myklebust if (status) 40044f9838c7STrond Myklebust goto out; 40054f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 40061da177e4SLinus Torvalds if (!status) 40071da177e4SLinus Torvalds status = res->count; 40081da177e4SLinus Torvalds out: 40091da177e4SLinus Torvalds return status; 40101da177e4SLinus Torvalds } 40111da177e4SLinus Torvalds 40121da177e4SLinus Torvalds /* 40131da177e4SLinus Torvalds * Decode COMMIT response 40141da177e4SLinus Torvalds */ 40151da177e4SLinus Torvalds static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res) 40161da177e4SLinus Torvalds { 40171da177e4SLinus Torvalds struct xdr_stream xdr; 40181da177e4SLinus Torvalds struct compound_hdr hdr; 40191da177e4SLinus Torvalds int status; 40201da177e4SLinus Torvalds 40211da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40221da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40231da177e4SLinus Torvalds if (status) 40241da177e4SLinus Torvalds goto out; 40251da177e4SLinus Torvalds status = decode_putfh(&xdr); 40261da177e4SLinus Torvalds if (status) 40271da177e4SLinus Torvalds goto out; 40281da177e4SLinus Torvalds status = decode_commit(&xdr, res); 40294f9838c7STrond Myklebust if (status) 40304f9838c7STrond Myklebust goto out; 40314f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 40321da177e4SLinus Torvalds out: 40331da177e4SLinus Torvalds return status; 40341da177e4SLinus Torvalds } 40351da177e4SLinus Torvalds 40361da177e4SLinus Torvalds /* 40371da177e4SLinus Torvalds * FSINFO request 40381da177e4SLinus Torvalds */ 40391da177e4SLinus Torvalds static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo) 40401da177e4SLinus Torvalds { 40411da177e4SLinus Torvalds struct xdr_stream xdr; 40421da177e4SLinus Torvalds struct compound_hdr hdr; 40431da177e4SLinus Torvalds int status; 40441da177e4SLinus Torvalds 40451da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 40461da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40471da177e4SLinus Torvalds if (!status) 40481da177e4SLinus Torvalds status = decode_putfh(&xdr); 40491da177e4SLinus Torvalds if (!status) 40501da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 40511da177e4SLinus Torvalds if (!status) 40521da177e4SLinus Torvalds status = -nfs_stat_to_errno(hdr.status); 40531da177e4SLinus Torvalds return status; 40541da177e4SLinus Torvalds } 40551da177e4SLinus Torvalds 40561da177e4SLinus Torvalds /* 40571da177e4SLinus Torvalds * PATHCONF request 40581da177e4SLinus Torvalds */ 40591da177e4SLinus Torvalds static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf) 40601da177e4SLinus Torvalds { 40611da177e4SLinus Torvalds struct xdr_stream xdr; 40621da177e4SLinus Torvalds struct compound_hdr hdr; 40631da177e4SLinus Torvalds int status; 40641da177e4SLinus Torvalds 40651da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 40661da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40671da177e4SLinus Torvalds if (!status) 40681da177e4SLinus Torvalds status = decode_putfh(&xdr); 40691da177e4SLinus Torvalds if (!status) 40701da177e4SLinus Torvalds status = decode_pathconf(&xdr, pathconf); 40711da177e4SLinus Torvalds return status; 40721da177e4SLinus Torvalds } 40731da177e4SLinus Torvalds 40741da177e4SLinus Torvalds /* 40751da177e4SLinus Torvalds * STATFS request 40761da177e4SLinus Torvalds */ 40771da177e4SLinus Torvalds static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat) 40781da177e4SLinus Torvalds { 40791da177e4SLinus Torvalds struct xdr_stream xdr; 40801da177e4SLinus Torvalds struct compound_hdr hdr; 40811da177e4SLinus Torvalds int status; 40821da177e4SLinus Torvalds 40831da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 40841da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40851da177e4SLinus Torvalds if (!status) 40861da177e4SLinus Torvalds status = decode_putfh(&xdr); 40871da177e4SLinus Torvalds if (!status) 40881da177e4SLinus Torvalds status = decode_statfs(&xdr, fsstat); 40891da177e4SLinus Torvalds return status; 40901da177e4SLinus Torvalds } 40911da177e4SLinus Torvalds 40921da177e4SLinus Torvalds /* 40931da177e4SLinus Torvalds * GETATTR_BITMAP request 40941da177e4SLinus Torvalds */ 40951da177e4SLinus Torvalds static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res) 40961da177e4SLinus Torvalds { 40971da177e4SLinus Torvalds struct xdr_stream xdr; 40981da177e4SLinus Torvalds struct compound_hdr hdr; 40991da177e4SLinus Torvalds int status; 41001da177e4SLinus Torvalds 41011da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 41021da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 41031da177e4SLinus Torvalds goto out; 41041da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 41051da177e4SLinus Torvalds goto out; 41061da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 41071da177e4SLinus Torvalds out: 41081da177e4SLinus Torvalds return status; 41091da177e4SLinus Torvalds } 41101da177e4SLinus Torvalds 41111da177e4SLinus Torvalds /* 41121da177e4SLinus Torvalds * Decode RENEW response 41131da177e4SLinus Torvalds */ 41141da177e4SLinus Torvalds static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy) 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 status = decode_renew(&xdr); 41241da177e4SLinus Torvalds return status; 41251da177e4SLinus Torvalds } 41261da177e4SLinus Torvalds 41271da177e4SLinus Torvalds /* 41281da177e4SLinus Torvalds * a SETCLIENTID request 41291da177e4SLinus Torvalds */ 41301da177e4SLinus Torvalds static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p, 41311da177e4SLinus Torvalds struct nfs4_client *clp) 41321da177e4SLinus Torvalds { 41331da177e4SLinus Torvalds struct xdr_stream xdr; 41341da177e4SLinus Torvalds struct compound_hdr hdr; 41351da177e4SLinus Torvalds int status; 41361da177e4SLinus Torvalds 41371da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 41381da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41391da177e4SLinus Torvalds if (!status) 41401da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 41411da177e4SLinus Torvalds if (!status) 41421da177e4SLinus Torvalds status = -nfs_stat_to_errno(hdr.status); 41431da177e4SLinus Torvalds return status; 41441da177e4SLinus Torvalds } 41451da177e4SLinus Torvalds 41461da177e4SLinus Torvalds /* 41471da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 41481da177e4SLinus Torvalds */ 41491da177e4SLinus Torvalds static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo) 41501da177e4SLinus Torvalds { 41511da177e4SLinus Torvalds struct xdr_stream xdr; 41521da177e4SLinus Torvalds struct compound_hdr hdr; 41531da177e4SLinus Torvalds int status; 41541da177e4SLinus Torvalds 41551da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 41561da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41571da177e4SLinus Torvalds if (!status) 41581da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 41591da177e4SLinus Torvalds if (!status) 41601da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 41611da177e4SLinus Torvalds if (!status) 41621da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 41631da177e4SLinus Torvalds if (!status) 41641da177e4SLinus Torvalds status = -nfs_stat_to_errno(hdr.status); 41651da177e4SLinus Torvalds return status; 41661da177e4SLinus Torvalds } 41671da177e4SLinus Torvalds 41681da177e4SLinus Torvalds /* 41691da177e4SLinus Torvalds * DELEGRETURN request 41701da177e4SLinus Torvalds */ 41711da177e4SLinus Torvalds static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy) 41721da177e4SLinus Torvalds { 41731da177e4SLinus Torvalds struct xdr_stream xdr; 41741da177e4SLinus Torvalds struct compound_hdr hdr; 41751da177e4SLinus Torvalds int status; 41761da177e4SLinus Torvalds 41771da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41781da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41791da177e4SLinus Torvalds if (status == 0) { 41801da177e4SLinus Torvalds status = decode_putfh(&xdr); 41811da177e4SLinus Torvalds if (status == 0) 41821da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 41831da177e4SLinus Torvalds } 41841da177e4SLinus Torvalds return status; 41851da177e4SLinus Torvalds } 41861da177e4SLinus Torvalds 41871da177e4SLinus Torvalds uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus) 41881da177e4SLinus Torvalds { 41891da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 41901da177e4SLinus Torvalds uint32_t len; 41911da177e4SLinus Torvalds 41921da177e4SLinus Torvalds if (!*p++) { 41931da177e4SLinus Torvalds if (!*p) 41941da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 41951da177e4SLinus Torvalds entry->eof = 1; 41961da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 41971da177e4SLinus Torvalds } 41981da177e4SLinus Torvalds 41991da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 42001da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 42011da177e4SLinus Torvalds entry->len = ntohl(*p++); 42021da177e4SLinus Torvalds entry->name = (const char *) p; 42031da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 42041da177e4SLinus Torvalds 42051da177e4SLinus Torvalds /* 42061da177e4SLinus Torvalds * In case the server doesn't return an inode number, 42071da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 42081da177e4SLinus Torvalds * since glibc seems to choke on it...) 42091da177e4SLinus Torvalds */ 42101da177e4SLinus Torvalds entry->ino = 1; 42111da177e4SLinus Torvalds 42121da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 42131da177e4SLinus Torvalds if (len-- > 0) { 42141da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 42151da177e4SLinus Torvalds if (len-- > 0) { 42161da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 42171da177e4SLinus Torvalds p += len; 42181da177e4SLinus Torvalds } 42191da177e4SLinus Torvalds } 42201da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 42211da177e4SLinus Torvalds if (len > 0) { 422297d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 422397d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 422497d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 422597d312d0SManoj Naik p++; 422697d312d0SManoj Naik len--; 422797d312d0SManoj Naik } 42281da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 42291da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 42301da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 42311da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 42321da177e4SLinus Torvalds p += len; 42331da177e4SLinus Torvalds } 42341da177e4SLinus Torvalds 42351da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 42361da177e4SLinus Torvalds return p; 42371da177e4SLinus Torvalds } 42381da177e4SLinus Torvalds 42391da177e4SLinus Torvalds /* 42401da177e4SLinus Torvalds * We need to translate between nfs status return values and 42411da177e4SLinus Torvalds * the local errno values which may not be the same. 42421da177e4SLinus Torvalds */ 42431da177e4SLinus Torvalds static struct { 42441da177e4SLinus Torvalds int stat; 42451da177e4SLinus Torvalds int errno; 42461da177e4SLinus Torvalds } nfs_errtbl[] = { 42471da177e4SLinus Torvalds { NFS4_OK, 0 }, 42481da177e4SLinus Torvalds { NFS4ERR_PERM, EPERM }, 42491da177e4SLinus Torvalds { NFS4ERR_NOENT, ENOENT }, 42501da177e4SLinus Torvalds { NFS4ERR_IO, errno_NFSERR_IO }, 42511da177e4SLinus Torvalds { NFS4ERR_NXIO, ENXIO }, 42521da177e4SLinus Torvalds { NFS4ERR_ACCESS, EACCES }, 42531da177e4SLinus Torvalds { NFS4ERR_EXIST, EEXIST }, 42541da177e4SLinus Torvalds { NFS4ERR_XDEV, EXDEV }, 42551da177e4SLinus Torvalds { NFS4ERR_NOTDIR, ENOTDIR }, 42561da177e4SLinus Torvalds { NFS4ERR_ISDIR, EISDIR }, 42571da177e4SLinus Torvalds { NFS4ERR_INVAL, EINVAL }, 42581da177e4SLinus Torvalds { NFS4ERR_FBIG, EFBIG }, 42591da177e4SLinus Torvalds { NFS4ERR_NOSPC, ENOSPC }, 42601da177e4SLinus Torvalds { NFS4ERR_ROFS, EROFS }, 42611da177e4SLinus Torvalds { NFS4ERR_MLINK, EMLINK }, 42621da177e4SLinus Torvalds { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, 42631da177e4SLinus Torvalds { NFS4ERR_NOTEMPTY, ENOTEMPTY }, 42641da177e4SLinus Torvalds { NFS4ERR_DQUOT, EDQUOT }, 42651da177e4SLinus Torvalds { NFS4ERR_STALE, ESTALE }, 42661da177e4SLinus Torvalds { NFS4ERR_BADHANDLE, EBADHANDLE }, 42676ebf3656SManoj Naik { NFS4ERR_BADOWNER, EINVAL }, 42686ebf3656SManoj Naik { NFS4ERR_BADNAME, EINVAL }, 42691da177e4SLinus Torvalds { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, 42701da177e4SLinus Torvalds { NFS4ERR_NOTSUPP, ENOTSUPP }, 42711da177e4SLinus Torvalds { NFS4ERR_TOOSMALL, ETOOSMALL }, 42721da177e4SLinus Torvalds { NFS4ERR_SERVERFAULT, ESERVERFAULT }, 42731da177e4SLinus Torvalds { NFS4ERR_BADTYPE, EBADTYPE }, 42741da177e4SLinus Torvalds { NFS4ERR_LOCKED, EAGAIN }, 42751da177e4SLinus Torvalds { NFS4ERR_RESOURCE, EREMOTEIO }, 42761da177e4SLinus Torvalds { NFS4ERR_SYMLINK, ELOOP }, 42771da177e4SLinus Torvalds { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, 42781da177e4SLinus Torvalds { NFS4ERR_DEADLOCK, EDEADLK }, 42791da177e4SLinus Torvalds { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs 42801da177e4SLinus Torvalds * to be handled by a 42811da177e4SLinus Torvalds * middle-layer. 42821da177e4SLinus Torvalds */ 42831da177e4SLinus Torvalds { -1, EIO } 42841da177e4SLinus Torvalds }; 42851da177e4SLinus Torvalds 42861da177e4SLinus Torvalds /* 42871da177e4SLinus Torvalds * Convert an NFS error code to a local one. 42881da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 42891da177e4SLinus Torvalds */ 42901da177e4SLinus Torvalds static int 42911da177e4SLinus Torvalds nfs_stat_to_errno(int stat) 42921da177e4SLinus Torvalds { 42931da177e4SLinus Torvalds int i; 42941da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 42951da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 42961da177e4SLinus Torvalds return nfs_errtbl[i].errno; 42971da177e4SLinus Torvalds } 42981da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 42991da177e4SLinus Torvalds /* The server is looney tunes. */ 43001da177e4SLinus Torvalds return ESERVERFAULT; 43011da177e4SLinus Torvalds } 43021da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 43031da177e4SLinus Torvalds * handle it. 43041da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 43051da177e4SLinus Torvalds * not conflict with native Linux error codes. 43061da177e4SLinus Torvalds */ 43071da177e4SLinus Torvalds return stat; 43081da177e4SLinus Torvalds } 43091da177e4SLinus Torvalds 43101da177e4SLinus Torvalds #ifndef MAX 43111da177e4SLinus Torvalds # define MAX(a, b) (((a) > (b))? (a) : (b)) 43121da177e4SLinus Torvalds #endif 43131da177e4SLinus Torvalds 43141da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 43151da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 43161da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 43171da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 43181da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 43191da177e4SLinus Torvalds .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \ 43201da177e4SLinus Torvalds } 43211da177e4SLinus Torvalds 43221da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 43231da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 43241da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 43251da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 43261da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 43271da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 43281da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 43291da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 43301da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 43311da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 43321da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 43331da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 43341da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 43351da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 43361da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 43371da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 43381da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 43391da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 43401da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 43411da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 43421da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 43431da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 43441da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 43451da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 43461da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 43471da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 43481da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 43491da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 43501da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 43511da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 43521da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 43531da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4354029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 435523ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 43561da177e4SLinus Torvalds }; 43571da177e4SLinus Torvalds 43581da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 43591da177e4SLinus Torvalds .number = 4, 43601da177e4SLinus Torvalds .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]), 43611da177e4SLinus Torvalds .procs = nfs4_procedures 43621da177e4SLinus Torvalds }; 43631da177e4SLinus Torvalds 43641da177e4SLinus Torvalds /* 43651da177e4SLinus Torvalds * Local variables: 43661da177e4SLinus Torvalds * c-basic-offset: 8 43671da177e4SLinus Torvalds * End: 43681da177e4SLinus Torvalds */ 4369