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) 981da177e4SLinus Torvalds #define encode_fsinfo_maxsz (op_encode_hdr_maxsz + 2) 991da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1001da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1011da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1021da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1031da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1041da177e4SLinus Torvalds 4 /*server->ip_addr*/ + \ 1051da177e4SLinus Torvalds 1 /*Netid*/ + \ 1061da177e4SLinus Torvalds 6 /*uaddr*/ + \ 1071da177e4SLinus Torvalds 6 + (NFS4_VERIFIER_SIZE >> 2)) 1081da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1091da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1101da177e4SLinus Torvalds 2 + \ 1111da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1121da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1131da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1141da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1151da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1161da177e4SLinus Torvalds (op_decode_hdr_maxsz) 1171da177e4SLinus Torvalds #define encode_lookup_maxsz (op_encode_hdr_maxsz + \ 1181da177e4SLinus Torvalds 1 + ((3 + NFS4_FHSIZE) >> 2)) 1191da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1201da177e4SLinus Torvalds nfs4_name_maxsz) 1211da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1221da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1231da177e4SLinus Torvalds #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) 1241da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 1251da177e4SLinus Torvalds nfs4_name_maxsz) 1261da177e4SLinus Torvalds #define decode_link_maxsz (op_decode_hdr_maxsz + 5) 1271da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 1281da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 1291da177e4SLinus Torvalds nfs4_path_maxsz + \ 13096928206SJ. Bruce Fields nfs4_fattr_maxsz) 1311da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 1321da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 1331da177e4SLinus Torvalds 2 + nfs4_name_maxsz + \ 13496928206SJ. Bruce Fields nfs4_fattr_maxsz) 1351da177e4SLinus Torvalds #define decode_create_maxsz (op_decode_hdr_maxsz + 8) 1361da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 1371da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 1381da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 1391da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 1401da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 1411da177e4SLinus Torvalds encode_putfh_maxsz + \ 1421da177e4SLinus Torvalds op_encode_hdr_maxsz + 7) 1431da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 1441da177e4SLinus Torvalds decode_putfh_maxsz + \ 1451da177e4SLinus Torvalds op_decode_hdr_maxsz + 2) 1461da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 1471da177e4SLinus Torvalds encode_putfh_maxsz + \ 1481da177e4SLinus Torvalds op_encode_hdr_maxsz) 1491da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 1501da177e4SLinus Torvalds decode_putfh_maxsz + \ 1511da177e4SLinus Torvalds op_decode_hdr_maxsz) 1521da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 1531da177e4SLinus Torvalds encode_putfh_maxsz + \ 1541da177e4SLinus Torvalds op_encode_hdr_maxsz + 9) 1551da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 1561da177e4SLinus Torvalds decode_putfh_maxsz + \ 1571da177e4SLinus Torvalds op_decode_hdr_maxsz + 2) 1581da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 1591da177e4SLinus Torvalds encode_putfh_maxsz + \ 1601da177e4SLinus Torvalds op_encode_hdr_maxsz + 8) 1611da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 1621da177e4SLinus Torvalds decode_putfh_maxsz + \ 1631da177e4SLinus Torvalds op_decode_hdr_maxsz + 4) 1641da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 1651da177e4SLinus Torvalds encode_putfh_maxsz + \ 1661da177e4SLinus Torvalds op_encode_hdr_maxsz + 3) 1671da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 1681da177e4SLinus Torvalds decode_putfh_maxsz + \ 1691da177e4SLinus Torvalds op_decode_hdr_maxsz + 2) 1701da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 1711da177e4SLinus Torvalds encode_putfh_maxsz + \ 1721da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 1731da177e4SLinus Torvalds 13 + 3 + 2 + 64 + \ 1741da177e4SLinus Torvalds encode_getattr_maxsz + \ 1751da177e4SLinus Torvalds encode_getfh_maxsz) 1761da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 1771da177e4SLinus Torvalds decode_putfh_maxsz + \ 1781da177e4SLinus Torvalds op_decode_hdr_maxsz + 4 + 5 + 2 + 3 + \ 1791da177e4SLinus Torvalds decode_getattr_maxsz + \ 1801da177e4SLinus Torvalds decode_getfh_maxsz) 1811da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 1821da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 1831da177e4SLinus Torvalds encode_putfh_maxsz + \ 1841da177e4SLinus Torvalds op_encode_hdr_maxsz + 5) 1851da177e4SLinus Torvalds #define NFS4_dec_open_confirm_sz (compound_decode_hdr_maxsz + \ 1861da177e4SLinus Torvalds decode_putfh_maxsz + \ 1871da177e4SLinus Torvalds op_decode_hdr_maxsz + 4) 1881da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 1891da177e4SLinus Torvalds encode_putfh_maxsz + \ 1901da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 1911da177e4SLinus Torvalds 11) 1921da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 1931da177e4SLinus Torvalds decode_putfh_maxsz + \ 1941da177e4SLinus Torvalds op_decode_hdr_maxsz + \ 1951da177e4SLinus Torvalds 4 + 5 + 2 + 3) 1961da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 1971da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 1981da177e4SLinus Torvalds encode_putfh_maxsz + \ 1991da177e4SLinus Torvalds op_encode_hdr_maxsz + 7) 2001da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 2011da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 2021da177e4SLinus Torvalds decode_putfh_maxsz + \ 2031da177e4SLinus Torvalds op_decode_hdr_maxsz + 4) 2041da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 2051da177e4SLinus Torvalds encode_putfh_maxsz + \ 2061da177e4SLinus Torvalds op_encode_hdr_maxsz + 5) 2071da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 2081da177e4SLinus Torvalds decode_putfh_maxsz + \ 2091da177e4SLinus Torvalds op_decode_hdr_maxsz + 4) 2101da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 2111da177e4SLinus Torvalds encode_putfh_maxsz + \ 2121da177e4SLinus Torvalds op_encode_hdr_maxsz + 4 + \ 21396928206SJ. Bruce Fields nfs4_fattr_maxsz + \ 2141da177e4SLinus Torvalds encode_getattr_maxsz) 2151da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 2161da177e4SLinus Torvalds decode_putfh_maxsz + \ 2171da177e4SLinus Torvalds op_decode_hdr_maxsz + 3) 2181da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 2191da177e4SLinus Torvalds encode_putfh_maxsz + \ 2201da177e4SLinus Torvalds encode_fsinfo_maxsz) 2211da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 2221da177e4SLinus Torvalds decode_putfh_maxsz + \ 2231da177e4SLinus Torvalds decode_fsinfo_maxsz) 2241da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 2251da177e4SLinus Torvalds encode_renew_maxsz) 2261da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 2271da177e4SLinus Torvalds decode_renew_maxsz) 2281da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 2291da177e4SLinus Torvalds encode_setclientid_maxsz) 2301da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 2311da177e4SLinus Torvalds decode_setclientid_maxsz) 2321da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 2331da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 2341da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 2351da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 2361da177e4SLinus Torvalds encode_fsinfo_maxsz) 2371da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 2381da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 2391da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 2401da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 2411da177e4SLinus Torvalds decode_fsinfo_maxsz) 2421da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 2431da177e4SLinus Torvalds encode_putfh_maxsz + \ 2441da177e4SLinus Torvalds encode_getattr_maxsz + \ 2451da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 2461da177e4SLinus Torvalds 1 + 1 + 2 + 2 + \ 2471da177e4SLinus Torvalds 1 + 4 + 1 + 2 + \ 2481da177e4SLinus Torvalds owner_id_maxsz) 2491da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 2501da177e4SLinus Torvalds decode_putfh_maxsz + \ 2511da177e4SLinus Torvalds decode_getattr_maxsz + \ 2521da177e4SLinus Torvalds op_decode_hdr_maxsz + \ 2531da177e4SLinus Torvalds 2 + 2 + 1 + 2 + \ 2541da177e4SLinus Torvalds owner_id_maxsz) 2551da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 2561da177e4SLinus Torvalds encode_putfh_maxsz + \ 2571da177e4SLinus Torvalds encode_getattr_maxsz + \ 2581da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 2591da177e4SLinus Torvalds 1 + 2 + 2 + 2 + \ 2601da177e4SLinus Torvalds owner_id_maxsz) 2611da177e4SLinus Torvalds #define NFS4_dec_lockt_sz (NFS4_dec_lock_sz) 2621da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 2631da177e4SLinus Torvalds encode_putfh_maxsz + \ 2641da177e4SLinus Torvalds encode_getattr_maxsz + \ 2651da177e4SLinus Torvalds op_encode_hdr_maxsz + \ 2661da177e4SLinus Torvalds 1 + 1 + 4 + 2 + 2) 2671da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 2681da177e4SLinus Torvalds decode_putfh_maxsz + \ 2691da177e4SLinus Torvalds decode_getattr_maxsz + \ 2701da177e4SLinus Torvalds op_decode_hdr_maxsz + 4) 2711da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 2721da177e4SLinus Torvalds encode_putfh_maxsz + \ 2731da177e4SLinus Torvalds op_encode_hdr_maxsz + 1) 2741da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 2751da177e4SLinus Torvalds decode_putfh_maxsz + \ 2761da177e4SLinus Torvalds op_decode_hdr_maxsz + 2) 2771da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 2781da177e4SLinus Torvalds encode_putfh_maxsz + \ 2791da177e4SLinus Torvalds encode_getattr_maxsz) 2801da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 2811da177e4SLinus Torvalds decode_putfh_maxsz + \ 2821da177e4SLinus Torvalds decode_getattr_maxsz) 2831da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 2841da177e4SLinus Torvalds encode_putfh_maxsz + \ 2851da177e4SLinus Torvalds encode_lookup_maxsz + \ 2861da177e4SLinus Torvalds encode_getattr_maxsz + \ 2871da177e4SLinus Torvalds encode_getfh_maxsz) 2881da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 2891da177e4SLinus Torvalds decode_putfh_maxsz + \ 2901da177e4SLinus Torvalds op_decode_hdr_maxsz + \ 2911da177e4SLinus Torvalds decode_getattr_maxsz + \ 2921da177e4SLinus Torvalds decode_getfh_maxsz) 2931da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 2941da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 2951da177e4SLinus Torvalds encode_getattr_maxsz + \ 2961da177e4SLinus Torvalds encode_getfh_maxsz) 2971da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 2981da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 2991da177e4SLinus Torvalds decode_getattr_maxsz + \ 3001da177e4SLinus Torvalds decode_getfh_maxsz) 3011da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 3021da177e4SLinus Torvalds encode_putfh_maxsz + \ 3031da177e4SLinus Torvalds encode_remove_maxsz) 3041da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 3051da177e4SLinus Torvalds decode_putfh_maxsz + \ 3061da177e4SLinus Torvalds op_decode_hdr_maxsz + 5) 3071da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 3081da177e4SLinus Torvalds encode_putfh_maxsz + \ 3091da177e4SLinus Torvalds encode_savefh_maxsz + \ 3101da177e4SLinus Torvalds encode_putfh_maxsz + \ 3111da177e4SLinus Torvalds encode_rename_maxsz) 3121da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 3131da177e4SLinus Torvalds decode_putfh_maxsz + \ 3141da177e4SLinus Torvalds decode_savefh_maxsz + \ 3151da177e4SLinus Torvalds decode_putfh_maxsz + \ 3161da177e4SLinus Torvalds decode_rename_maxsz) 3171da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 3181da177e4SLinus Torvalds encode_putfh_maxsz + \ 3191da177e4SLinus Torvalds encode_savefh_maxsz + \ 3201da177e4SLinus Torvalds encode_putfh_maxsz + \ 3211da177e4SLinus Torvalds encode_link_maxsz) 3221da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 3231da177e4SLinus Torvalds decode_putfh_maxsz + \ 3241da177e4SLinus Torvalds decode_savefh_maxsz + \ 3251da177e4SLinus Torvalds decode_putfh_maxsz + \ 3261da177e4SLinus Torvalds decode_link_maxsz) 3271da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 3281da177e4SLinus Torvalds encode_putfh_maxsz + \ 3291da177e4SLinus Torvalds encode_symlink_maxsz + \ 3301da177e4SLinus Torvalds encode_getattr_maxsz + \ 3311da177e4SLinus Torvalds encode_getfh_maxsz) 3321da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 3331da177e4SLinus Torvalds decode_putfh_maxsz + \ 3341da177e4SLinus Torvalds decode_symlink_maxsz + \ 3351da177e4SLinus Torvalds decode_getattr_maxsz + \ 3361da177e4SLinus Torvalds decode_getfh_maxsz) 3371da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 3381da177e4SLinus Torvalds encode_putfh_maxsz + \ 3391da177e4SLinus Torvalds encode_create_maxsz + \ 3401da177e4SLinus Torvalds encode_getattr_maxsz + \ 3411da177e4SLinus Torvalds encode_getfh_maxsz) 3421da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 3431da177e4SLinus Torvalds decode_putfh_maxsz + \ 3441da177e4SLinus Torvalds decode_create_maxsz + \ 3451da177e4SLinus Torvalds decode_getattr_maxsz + \ 3461da177e4SLinus Torvalds decode_getfh_maxsz) 3471da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 3481da177e4SLinus Torvalds encode_putfh_maxsz + \ 3491da177e4SLinus Torvalds encode_getattr_maxsz) 3501da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 3511da177e4SLinus Torvalds decode_putfh_maxsz + \ 3521da177e4SLinus Torvalds decode_getattr_maxsz) 3531da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 3541da177e4SLinus Torvalds encode_putfh_maxsz + \ 3551da177e4SLinus Torvalds encode_getattr_maxsz) 3561da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 3571da177e4SLinus Torvalds decode_putfh_maxsz + \ 3581da177e4SLinus Torvalds op_decode_hdr_maxsz + 12) 3591da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 3601da177e4SLinus Torvalds encode_getattr_maxsz) 3611da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 3621da177e4SLinus Torvalds decode_getattr_maxsz) 3631da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 3641da177e4SLinus Torvalds encode_putfh_maxsz + \ 3651da177e4SLinus Torvalds encode_delegreturn_maxsz) 3661da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 3671da177e4SLinus Torvalds decode_delegreturn_maxsz) 368029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 369029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 370029d105eSJ. Bruce Fields encode_getattr_maxsz) 371029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 372029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 373029d105eSJ. Bruce Fields op_decode_hdr_maxsz + \ 374029d105eSJ. Bruce Fields nfs4_fattr_bitmap_maxsz + 1) 37523ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 37623ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 37723ec6965SJ. Bruce Fields op_encode_hdr_maxsz + 4 + \ 37823ec6965SJ. Bruce Fields nfs4_fattr_bitmap_maxsz + 1) 37923ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 38023ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 38123ec6965SJ. Bruce Fields op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 3821da177e4SLinus Torvalds 3831da177e4SLinus Torvalds static struct { 3841da177e4SLinus Torvalds unsigned int mode; 3851da177e4SLinus Torvalds unsigned int nfs2type; 3861da177e4SLinus Torvalds } nfs_type2fmt[] = { 3871da177e4SLinus Torvalds { 0, NFNON }, 3881da177e4SLinus Torvalds { S_IFREG, NFREG }, 3891da177e4SLinus Torvalds { S_IFDIR, NFDIR }, 3901da177e4SLinus Torvalds { S_IFBLK, NFBLK }, 3911da177e4SLinus Torvalds { S_IFCHR, NFCHR }, 3921da177e4SLinus Torvalds { S_IFLNK, NFLNK }, 3931da177e4SLinus Torvalds { S_IFSOCK, NFSOCK }, 3941da177e4SLinus Torvalds { S_IFIFO, NFFIFO }, 3951da177e4SLinus Torvalds { 0, NFNON }, 3961da177e4SLinus Torvalds { 0, NFNON }, 3971da177e4SLinus Torvalds }; 3981da177e4SLinus Torvalds 3991da177e4SLinus Torvalds struct compound_hdr { 4001da177e4SLinus Torvalds int32_t status; 4011da177e4SLinus Torvalds uint32_t nops; 4021da177e4SLinus Torvalds uint32_t taglen; 4031da177e4SLinus Torvalds char * tag; 4041da177e4SLinus Torvalds }; 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds /* 4071da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 4081da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 4091da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 4101da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 4111da177e4SLinus Torvalds * 4121da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 4131da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 4141da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 4151da177e4SLinus Torvalds */ 4161da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 4171da177e4SLinus Torvalds #define WRITE64(n) do { \ 4181da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 4191da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 4201da177e4SLinus Torvalds } while (0) 4211da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 4221da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 4231da177e4SLinus Torvalds } while (0) 4241da177e4SLinus Torvalds 4251da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 4261da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 4271da177e4SLinus Torvalds if (!p) printk("RESERVE_SPACE(%d) failed in function %s\n", (int) (nbytes), __FUNCTION__); \ 4281da177e4SLinus Torvalds BUG_ON(!p); \ 4291da177e4SLinus Torvalds } while (0) 4301da177e4SLinus Torvalds 4311da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 4321da177e4SLinus Torvalds { 4331da177e4SLinus Torvalds uint32_t *p; 4341da177e4SLinus Torvalds 4351da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 4361da177e4SLinus Torvalds BUG_ON(p == NULL); 4371da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 4381da177e4SLinus Torvalds } 4391da177e4SLinus Torvalds 4401da177e4SLinus Torvalds static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 4411da177e4SLinus Torvalds { 4421da177e4SLinus Torvalds uint32_t *p; 4431da177e4SLinus Torvalds 4441da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 4451da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 4461da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 4471da177e4SLinus Torvalds WRITE32(hdr->taglen); 4481da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 4491da177e4SLinus Torvalds WRITE32(NFS4_MINOR_VERSION); 4501da177e4SLinus Torvalds WRITE32(hdr->nops); 4511da177e4SLinus Torvalds return 0; 4521da177e4SLinus Torvalds } 4531da177e4SLinus Torvalds 4541da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 4551da177e4SLinus Torvalds { 4561da177e4SLinus Torvalds uint32_t *p; 4571da177e4SLinus Torvalds 4581da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 4591da177e4SLinus Torvalds BUG_ON(p == NULL); 4601da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 4611da177e4SLinus Torvalds } 4621da177e4SLinus Torvalds 4631da177e4SLinus Torvalds static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 4641da177e4SLinus Torvalds { 4651da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 4661da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 4671da177e4SLinus Torvalds int owner_namelen = 0; 4681da177e4SLinus Torvalds int owner_grouplen = 0; 4691da177e4SLinus Torvalds uint32_t *p; 4701da177e4SLinus Torvalds uint32_t *q; 4711da177e4SLinus Torvalds int len; 4721da177e4SLinus Torvalds uint32_t bmval0 = 0; 4731da177e4SLinus Torvalds uint32_t bmval1 = 0; 4741da177e4SLinus Torvalds int status; 4751da177e4SLinus Torvalds 4761da177e4SLinus Torvalds /* 4771da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 4781da177e4SLinus Torvalds * In the worst-case, this would be 4791da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 4801da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 48123ec6965SJ. Bruce Fields * such as owner/group. 4821da177e4SLinus Torvalds */ 4831da177e4SLinus Torvalds len = 16; 4841da177e4SLinus Torvalds 4851da177e4SLinus Torvalds /* Sigh */ 4861da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 4871da177e4SLinus Torvalds len += 8; 4881da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 4891da177e4SLinus Torvalds len += 4; 4901da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 4911da177e4SLinus Torvalds owner_namelen = nfs_map_uid_to_name(server->nfs4_state, iap->ia_uid, owner_name); 4921da177e4SLinus Torvalds if (owner_namelen < 0) { 4931da177e4SLinus Torvalds printk(KERN_WARNING "nfs: couldn't resolve uid %d to string\n", 4941da177e4SLinus Torvalds iap->ia_uid); 4951da177e4SLinus Torvalds /* XXX */ 4961da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 4971da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 4981da177e4SLinus Torvalds /* goto out; */ 4991da177e4SLinus Torvalds } 5001da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 5011da177e4SLinus Torvalds } 5021da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 5031da177e4SLinus Torvalds owner_grouplen = nfs_map_gid_to_group(server->nfs4_state, iap->ia_gid, owner_group); 5041da177e4SLinus Torvalds if (owner_grouplen < 0) { 5051da177e4SLinus Torvalds printk(KERN_WARNING "nfs4: couldn't resolve gid %d to string\n", 5061da177e4SLinus Torvalds iap->ia_gid); 5071da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 5081da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 5091da177e4SLinus Torvalds /* goto out; */ 5101da177e4SLinus Torvalds } 5111da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 5121da177e4SLinus Torvalds } 5131da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 5141da177e4SLinus Torvalds len += 16; 5151da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 5161da177e4SLinus Torvalds len += 4; 5171da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 5181da177e4SLinus Torvalds len += 16; 5191da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 5201da177e4SLinus Torvalds len += 4; 5211da177e4SLinus Torvalds RESERVE_SPACE(len); 5221da177e4SLinus Torvalds 5231da177e4SLinus Torvalds /* 5241da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 5251da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 5261da177e4SLinus Torvalds */ 5271da177e4SLinus Torvalds WRITE32(2); 5281da177e4SLinus Torvalds q = p; 5291da177e4SLinus Torvalds p += 3; 5301da177e4SLinus Torvalds 5311da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 5321da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 5331da177e4SLinus Torvalds WRITE64(iap->ia_size); 5341da177e4SLinus Torvalds } 5351da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 5361da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 5371da177e4SLinus Torvalds WRITE32(iap->ia_mode); 5381da177e4SLinus Torvalds } 5391da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 5401da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 5411da177e4SLinus Torvalds WRITE32(owner_namelen); 5421da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 5431da177e4SLinus Torvalds } 5441da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 5451da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 5461da177e4SLinus Torvalds WRITE32(owner_grouplen); 5471da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 5481da177e4SLinus Torvalds } 5491da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 5501da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 5511da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 5521da177e4SLinus Torvalds WRITE32(0); 5531da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 5541da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 5551da177e4SLinus Torvalds } 5561da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 5571da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 5581da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 5591da177e4SLinus Torvalds } 5601da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 5611da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 5621da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 5631da177e4SLinus Torvalds WRITE32(0); 5641da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 5651da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 5661da177e4SLinus Torvalds } 5671da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 5681da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 5691da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 5701da177e4SLinus Torvalds } 5711da177e4SLinus Torvalds 5721da177e4SLinus Torvalds /* 5731da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 5741da177e4SLinus Torvalds */ 5751da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 5761da177e4SLinus Torvalds printk ("encode_attr: Attr length calculation error! %u != %Zu\n", 5771da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 5781da177e4SLinus Torvalds BUG(); 5791da177e4SLinus Torvalds } 5801da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 5811da177e4SLinus Torvalds *q++ = htonl(bmval0); 5821da177e4SLinus Torvalds *q++ = htonl(bmval1); 5831da177e4SLinus Torvalds *q++ = htonl(len); 5841da177e4SLinus Torvalds 5851da177e4SLinus Torvalds status = 0; 5861da177e4SLinus Torvalds /* out: */ 5871da177e4SLinus Torvalds return status; 5881da177e4SLinus Torvalds } 5891da177e4SLinus Torvalds 5901da177e4SLinus Torvalds static int encode_access(struct xdr_stream *xdr, u32 access) 5911da177e4SLinus Torvalds { 5921da177e4SLinus Torvalds uint32_t *p; 5931da177e4SLinus Torvalds 5941da177e4SLinus Torvalds RESERVE_SPACE(8); 5951da177e4SLinus Torvalds WRITE32(OP_ACCESS); 5961da177e4SLinus Torvalds WRITE32(access); 5971da177e4SLinus Torvalds 5981da177e4SLinus Torvalds return 0; 5991da177e4SLinus Torvalds } 6001da177e4SLinus Torvalds 6011da177e4SLinus Torvalds static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 6021da177e4SLinus Torvalds { 6031da177e4SLinus Torvalds uint32_t *p; 6041da177e4SLinus Torvalds 6051da177e4SLinus Torvalds RESERVE_SPACE(8+sizeof(arg->stateid.data)); 6061da177e4SLinus Torvalds WRITE32(OP_CLOSE); 6071da177e4SLinus Torvalds WRITE32(arg->seqid); 6081da177e4SLinus Torvalds WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data)); 6091da177e4SLinus Torvalds 6101da177e4SLinus Torvalds return 0; 6111da177e4SLinus Torvalds } 6121da177e4SLinus Torvalds 6131da177e4SLinus Torvalds static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) 6141da177e4SLinus Torvalds { 6151da177e4SLinus Torvalds uint32_t *p; 6161da177e4SLinus Torvalds 6171da177e4SLinus Torvalds RESERVE_SPACE(16); 6181da177e4SLinus Torvalds WRITE32(OP_COMMIT); 6191da177e4SLinus Torvalds WRITE64(args->offset); 6201da177e4SLinus Torvalds WRITE32(args->count); 6211da177e4SLinus Torvalds 6221da177e4SLinus Torvalds return 0; 6231da177e4SLinus Torvalds } 6241da177e4SLinus Torvalds 6251da177e4SLinus Torvalds static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) 6261da177e4SLinus Torvalds { 6271da177e4SLinus Torvalds uint32_t *p; 6281da177e4SLinus Torvalds 6291da177e4SLinus Torvalds RESERVE_SPACE(8); 6301da177e4SLinus Torvalds WRITE32(OP_CREATE); 6311da177e4SLinus Torvalds WRITE32(create->ftype); 6321da177e4SLinus Torvalds 6331da177e4SLinus Torvalds switch (create->ftype) { 6341da177e4SLinus Torvalds case NF4LNK: 6351da177e4SLinus Torvalds RESERVE_SPACE(4 + create->u.symlink->len); 6361da177e4SLinus Torvalds WRITE32(create->u.symlink->len); 6371da177e4SLinus Torvalds WRITEMEM(create->u.symlink->name, create->u.symlink->len); 6381da177e4SLinus Torvalds break; 6391da177e4SLinus Torvalds 6401da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 6411da177e4SLinus Torvalds RESERVE_SPACE(8); 6421da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 6431da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 6441da177e4SLinus Torvalds break; 6451da177e4SLinus Torvalds 6461da177e4SLinus Torvalds default: 6471da177e4SLinus Torvalds break; 6481da177e4SLinus Torvalds } 6491da177e4SLinus Torvalds 6501da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 6511da177e4SLinus Torvalds WRITE32(create->name->len); 6521da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 6531da177e4SLinus Torvalds 6541da177e4SLinus Torvalds return encode_attrs(xdr, create->attrs, create->server); 6551da177e4SLinus Torvalds } 6561da177e4SLinus Torvalds 6571da177e4SLinus Torvalds static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) 6581da177e4SLinus Torvalds { 6591da177e4SLinus Torvalds uint32_t *p; 6601da177e4SLinus Torvalds 6611da177e4SLinus Torvalds RESERVE_SPACE(12); 6621da177e4SLinus Torvalds WRITE32(OP_GETATTR); 6631da177e4SLinus Torvalds WRITE32(1); 6641da177e4SLinus Torvalds WRITE32(bitmap); 6651da177e4SLinus Torvalds return 0; 6661da177e4SLinus Torvalds } 6671da177e4SLinus Torvalds 6681da177e4SLinus Torvalds static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) 6691da177e4SLinus Torvalds { 6701da177e4SLinus Torvalds uint32_t *p; 6711da177e4SLinus Torvalds 6721da177e4SLinus Torvalds RESERVE_SPACE(16); 6731da177e4SLinus Torvalds WRITE32(OP_GETATTR); 6741da177e4SLinus Torvalds WRITE32(2); 6751da177e4SLinus Torvalds WRITE32(bm0); 6761da177e4SLinus Torvalds WRITE32(bm1); 6771da177e4SLinus Torvalds return 0; 6781da177e4SLinus Torvalds } 6791da177e4SLinus Torvalds 6801da177e4SLinus Torvalds static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) 6811da177e4SLinus Torvalds { 6821da177e4SLinus Torvalds return encode_getattr_two(xdr, 6831da177e4SLinus Torvalds bitmask[0] & nfs4_fattr_bitmap[0], 6841da177e4SLinus Torvalds bitmask[1] & nfs4_fattr_bitmap[1]); 6851da177e4SLinus Torvalds } 6861da177e4SLinus Torvalds 6871da177e4SLinus Torvalds static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) 6881da177e4SLinus Torvalds { 6891da177e4SLinus Torvalds return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 6901da177e4SLinus Torvalds bitmask[1] & nfs4_fsinfo_bitmap[1]); 6911da177e4SLinus Torvalds } 6921da177e4SLinus Torvalds 6931da177e4SLinus Torvalds static int encode_getfh(struct xdr_stream *xdr) 6941da177e4SLinus Torvalds { 6951da177e4SLinus Torvalds uint32_t *p; 6961da177e4SLinus Torvalds 6971da177e4SLinus Torvalds RESERVE_SPACE(4); 6981da177e4SLinus Torvalds WRITE32(OP_GETFH); 6991da177e4SLinus Torvalds 7001da177e4SLinus Torvalds return 0; 7011da177e4SLinus Torvalds } 7021da177e4SLinus Torvalds 7031da177e4SLinus Torvalds static int encode_link(struct xdr_stream *xdr, const struct qstr *name) 7041da177e4SLinus Torvalds { 7051da177e4SLinus Torvalds uint32_t *p; 7061da177e4SLinus Torvalds 7071da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 7081da177e4SLinus Torvalds WRITE32(OP_LINK); 7091da177e4SLinus Torvalds WRITE32(name->len); 7101da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 7111da177e4SLinus Torvalds 7121da177e4SLinus Torvalds return 0; 7131da177e4SLinus Torvalds } 7141da177e4SLinus Torvalds 7151da177e4SLinus Torvalds /* 7161da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 7171da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 7181da177e4SLinus Torvalds */ 7191da177e4SLinus Torvalds static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg) 7201da177e4SLinus Torvalds { 7211da177e4SLinus Torvalds uint32_t *p; 7221da177e4SLinus Torvalds struct nfs_lock_opargs *opargs = arg->u.lock; 7231da177e4SLinus Torvalds 7241da177e4SLinus Torvalds RESERVE_SPACE(32); 7251da177e4SLinus Torvalds WRITE32(OP_LOCK); 7261da177e4SLinus Torvalds WRITE32(arg->type); 7271da177e4SLinus Torvalds WRITE32(opargs->reclaim); 7281da177e4SLinus Torvalds WRITE64(arg->offset); 7291da177e4SLinus Torvalds WRITE64(arg->length); 7301da177e4SLinus Torvalds WRITE32(opargs->new_lock_owner); 7311da177e4SLinus Torvalds if (opargs->new_lock_owner){ 7321da177e4SLinus Torvalds struct nfs_open_to_lock *ol = opargs->u.open_lock; 7331da177e4SLinus Torvalds 7341da177e4SLinus Torvalds RESERVE_SPACE(40); 7351da177e4SLinus Torvalds WRITE32(ol->open_seqid); 7361da177e4SLinus Torvalds WRITEMEM(&ol->open_stateid, sizeof(ol->open_stateid)); 7371da177e4SLinus Torvalds WRITE32(ol->lock_seqid); 7381da177e4SLinus Torvalds WRITE64(ol->lock_owner.clientid); 7391da177e4SLinus Torvalds WRITE32(4); 7401da177e4SLinus Torvalds WRITE32(ol->lock_owner.id); 7411da177e4SLinus Torvalds } 7421da177e4SLinus Torvalds else { 7431da177e4SLinus Torvalds struct nfs_exist_lock *el = opargs->u.exist_lock; 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds RESERVE_SPACE(20); 7461da177e4SLinus Torvalds WRITEMEM(&el->stateid, sizeof(el->stateid)); 7471da177e4SLinus Torvalds WRITE32(el->seqid); 7481da177e4SLinus Torvalds } 7491da177e4SLinus Torvalds 7501da177e4SLinus Torvalds return 0; 7511da177e4SLinus Torvalds } 7521da177e4SLinus Torvalds 7531da177e4SLinus Torvalds static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockargs *arg) 7541da177e4SLinus Torvalds { 7551da177e4SLinus Torvalds uint32_t *p; 7561da177e4SLinus Torvalds struct nfs_lowner *opargs = arg->u.lockt; 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds RESERVE_SPACE(40); 7591da177e4SLinus Torvalds WRITE32(OP_LOCKT); 7601da177e4SLinus Torvalds WRITE32(arg->type); 7611da177e4SLinus Torvalds WRITE64(arg->offset); 7621da177e4SLinus Torvalds WRITE64(arg->length); 7631da177e4SLinus Torvalds WRITE64(opargs->clientid); 7641da177e4SLinus Torvalds WRITE32(4); 7651da177e4SLinus Torvalds WRITE32(opargs->id); 7661da177e4SLinus Torvalds 7671da177e4SLinus Torvalds return 0; 7681da177e4SLinus Torvalds } 7691da177e4SLinus Torvalds 7701da177e4SLinus Torvalds static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg) 7711da177e4SLinus Torvalds { 7721da177e4SLinus Torvalds uint32_t *p; 7731da177e4SLinus Torvalds struct nfs_locku_opargs *opargs = arg->u.locku; 7741da177e4SLinus Torvalds 7751da177e4SLinus Torvalds RESERVE_SPACE(44); 7761da177e4SLinus Torvalds WRITE32(OP_LOCKU); 7771da177e4SLinus Torvalds WRITE32(arg->type); 7781da177e4SLinus Torvalds WRITE32(opargs->seqid); 7791da177e4SLinus Torvalds WRITEMEM(&opargs->stateid, sizeof(opargs->stateid)); 7801da177e4SLinus Torvalds WRITE64(arg->offset); 7811da177e4SLinus Torvalds WRITE64(arg->length); 7821da177e4SLinus Torvalds 7831da177e4SLinus Torvalds return 0; 7841da177e4SLinus Torvalds } 7851da177e4SLinus Torvalds 7861da177e4SLinus Torvalds static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) 7871da177e4SLinus Torvalds { 7881da177e4SLinus Torvalds int len = name->len; 7891da177e4SLinus Torvalds uint32_t *p; 7901da177e4SLinus Torvalds 7911da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 7921da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 7931da177e4SLinus Torvalds WRITE32(len); 7941da177e4SLinus Torvalds WRITEMEM(name->name, len); 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds return 0; 7971da177e4SLinus Torvalds } 7981da177e4SLinus Torvalds 7991da177e4SLinus Torvalds static void encode_share_access(struct xdr_stream *xdr, int open_flags) 8001da177e4SLinus Torvalds { 8011da177e4SLinus Torvalds uint32_t *p; 8021da177e4SLinus Torvalds 8031da177e4SLinus Torvalds RESERVE_SPACE(8); 8041da177e4SLinus Torvalds switch (open_flags & (FMODE_READ|FMODE_WRITE)) { 8051da177e4SLinus Torvalds case FMODE_READ: 8061da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 8071da177e4SLinus Torvalds break; 8081da177e4SLinus Torvalds case FMODE_WRITE: 8091da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 8101da177e4SLinus Torvalds break; 8111da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 8121da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 8131da177e4SLinus Torvalds break; 8141da177e4SLinus Torvalds default: 8151da177e4SLinus Torvalds BUG(); 8161da177e4SLinus Torvalds } 8171da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 8181da177e4SLinus Torvalds } 8191da177e4SLinus Torvalds 8201da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 8211da177e4SLinus Torvalds { 8221da177e4SLinus Torvalds uint32_t *p; 8231da177e4SLinus Torvalds /* 8241da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 8251da177e4SLinus Torvalds * owner 4 = 32 8261da177e4SLinus Torvalds */ 8271da177e4SLinus Torvalds RESERVE_SPACE(8); 8281da177e4SLinus Torvalds WRITE32(OP_OPEN); 8291da177e4SLinus Torvalds WRITE32(arg->seqid); 8301da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 8311da177e4SLinus Torvalds RESERVE_SPACE(16); 8321da177e4SLinus Torvalds WRITE64(arg->clientid); 8331da177e4SLinus Torvalds WRITE32(4); 8341da177e4SLinus Torvalds WRITE32(arg->id); 8351da177e4SLinus Torvalds } 8361da177e4SLinus Torvalds 8371da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 8381da177e4SLinus Torvalds { 8391da177e4SLinus Torvalds uint32_t *p; 8401da177e4SLinus Torvalds 8411da177e4SLinus Torvalds RESERVE_SPACE(4); 8421da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 8431da177e4SLinus Torvalds case 0: 8441da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 8451da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 8461da177e4SLinus Torvalds break; 8471da177e4SLinus Torvalds default: 8481da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 8491da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 8501da177e4SLinus Torvalds } 8511da177e4SLinus Torvalds } 8521da177e4SLinus Torvalds 8531da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 8541da177e4SLinus Torvalds { 8551da177e4SLinus Torvalds uint32_t *p; 8561da177e4SLinus Torvalds 8571da177e4SLinus Torvalds RESERVE_SPACE(4); 8581da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 8591da177e4SLinus Torvalds case 0: 8601da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 8611da177e4SLinus Torvalds break; 8621da177e4SLinus Torvalds default: 8631da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 8641da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 8651da177e4SLinus Torvalds encode_createmode(xdr, arg); 8661da177e4SLinus Torvalds } 8671da177e4SLinus Torvalds } 8681da177e4SLinus Torvalds 8691da177e4SLinus Torvalds static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) 8701da177e4SLinus Torvalds { 8711da177e4SLinus Torvalds uint32_t *p; 8721da177e4SLinus Torvalds 8731da177e4SLinus Torvalds RESERVE_SPACE(4); 8741da177e4SLinus Torvalds switch (delegation_type) { 8751da177e4SLinus Torvalds case 0: 8761da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 8771da177e4SLinus Torvalds break; 8781da177e4SLinus Torvalds case FMODE_READ: 8791da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 8801da177e4SLinus Torvalds break; 8811da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 8821da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 8831da177e4SLinus Torvalds break; 8841da177e4SLinus Torvalds default: 8851da177e4SLinus Torvalds BUG(); 8861da177e4SLinus Torvalds } 8871da177e4SLinus Torvalds } 8881da177e4SLinus Torvalds 8891da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 8901da177e4SLinus Torvalds { 8911da177e4SLinus Torvalds uint32_t *p; 8921da177e4SLinus Torvalds 8931da177e4SLinus Torvalds RESERVE_SPACE(4); 8941da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 8951da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 8961da177e4SLinus Torvalds } 8971da177e4SLinus Torvalds 8981da177e4SLinus Torvalds static inline void encode_claim_previous(struct xdr_stream *xdr, int type) 8991da177e4SLinus Torvalds { 9001da177e4SLinus Torvalds uint32_t *p; 9011da177e4SLinus Torvalds 9021da177e4SLinus Torvalds RESERVE_SPACE(4); 9031da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 9041da177e4SLinus Torvalds encode_delegation_type(xdr, type); 9051da177e4SLinus Torvalds } 9061da177e4SLinus Torvalds 9071da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 9081da177e4SLinus Torvalds { 9091da177e4SLinus Torvalds uint32_t *p; 9101da177e4SLinus Torvalds 9111da177e4SLinus Torvalds RESERVE_SPACE(4+sizeof(stateid->data)); 9121da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 9131da177e4SLinus Torvalds WRITEMEM(stateid->data, sizeof(stateid->data)); 9141da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 9151da177e4SLinus Torvalds } 9161da177e4SLinus Torvalds 9171da177e4SLinus Torvalds static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9181da177e4SLinus Torvalds { 9191da177e4SLinus Torvalds encode_openhdr(xdr, arg); 9201da177e4SLinus Torvalds encode_opentype(xdr, arg); 9211da177e4SLinus Torvalds switch (arg->claim) { 9221da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 9231da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 9241da177e4SLinus Torvalds break; 9251da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 9261da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 9271da177e4SLinus Torvalds break; 9281da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 9291da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 9301da177e4SLinus Torvalds break; 9311da177e4SLinus Torvalds default: 9321da177e4SLinus Torvalds BUG(); 9331da177e4SLinus Torvalds } 9341da177e4SLinus Torvalds return 0; 9351da177e4SLinus Torvalds } 9361da177e4SLinus Torvalds 9371da177e4SLinus Torvalds static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) 9381da177e4SLinus Torvalds { 9391da177e4SLinus Torvalds uint32_t *p; 9401da177e4SLinus Torvalds 9411da177e4SLinus Torvalds RESERVE_SPACE(8+sizeof(arg->stateid.data)); 9421da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 9431da177e4SLinus Torvalds WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data)); 9441da177e4SLinus Torvalds WRITE32(arg->seqid); 9451da177e4SLinus Torvalds 9461da177e4SLinus Torvalds return 0; 9471da177e4SLinus Torvalds } 9481da177e4SLinus Torvalds 9491da177e4SLinus Torvalds static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 9501da177e4SLinus Torvalds { 9511da177e4SLinus Torvalds uint32_t *p; 9521da177e4SLinus Torvalds 9531da177e4SLinus Torvalds RESERVE_SPACE(8+sizeof(arg->stateid.data)); 9541da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 9551da177e4SLinus Torvalds WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data)); 9561da177e4SLinus Torvalds WRITE32(arg->seqid); 9571da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 9581da177e4SLinus Torvalds return 0; 9591da177e4SLinus Torvalds } 9601da177e4SLinus Torvalds 9611da177e4SLinus Torvalds static int 9621da177e4SLinus Torvalds encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) 9631da177e4SLinus Torvalds { 9641da177e4SLinus Torvalds int len = fh->size; 9651da177e4SLinus Torvalds uint32_t *p; 9661da177e4SLinus Torvalds 9671da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 9681da177e4SLinus Torvalds WRITE32(OP_PUTFH); 9691da177e4SLinus Torvalds WRITE32(len); 9701da177e4SLinus Torvalds WRITEMEM(fh->data, len); 9711da177e4SLinus Torvalds 9721da177e4SLinus Torvalds return 0; 9731da177e4SLinus Torvalds } 9741da177e4SLinus Torvalds 9751da177e4SLinus Torvalds static int encode_putrootfh(struct xdr_stream *xdr) 9761da177e4SLinus Torvalds { 9771da177e4SLinus Torvalds uint32_t *p; 9781da177e4SLinus Torvalds 9791da177e4SLinus Torvalds RESERVE_SPACE(4); 9801da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 9811da177e4SLinus Torvalds 9821da177e4SLinus Torvalds return 0; 9831da177e4SLinus Torvalds } 9841da177e4SLinus Torvalds 9851da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 9861da177e4SLinus Torvalds { 9871da177e4SLinus Torvalds nfs4_stateid stateid; 9881da177e4SLinus Torvalds uint32_t *p; 9891da177e4SLinus Torvalds 9901da177e4SLinus Torvalds RESERVE_SPACE(16); 9911da177e4SLinus Torvalds if (ctx->state != NULL) { 9921da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 9931da177e4SLinus Torvalds WRITEMEM(stateid.data, sizeof(stateid.data)); 9941da177e4SLinus Torvalds } else 9951da177e4SLinus Torvalds WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); 9961da177e4SLinus Torvalds } 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) 9991da177e4SLinus Torvalds { 10001da177e4SLinus Torvalds uint32_t *p; 10011da177e4SLinus Torvalds 10021da177e4SLinus Torvalds RESERVE_SPACE(4); 10031da177e4SLinus Torvalds WRITE32(OP_READ); 10041da177e4SLinus Torvalds 10051da177e4SLinus Torvalds encode_stateid(xdr, args->context); 10061da177e4SLinus Torvalds 10071da177e4SLinus Torvalds RESERVE_SPACE(12); 10081da177e4SLinus Torvalds WRITE64(args->offset); 10091da177e4SLinus Torvalds WRITE32(args->count); 10101da177e4SLinus Torvalds 10111da177e4SLinus Torvalds return 0; 10121da177e4SLinus Torvalds } 10131da177e4SLinus Torvalds 10141da177e4SLinus Torvalds static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) 10151da177e4SLinus Torvalds { 10161da177e4SLinus Torvalds struct rpc_auth *auth = req->rq_task->tk_auth; 101797d312d0SManoj Naik uint32_t attrs[2] = { 101897d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 101997d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 102097d312d0SManoj Naik }; 10211da177e4SLinus Torvalds int replen; 10221da177e4SLinus Torvalds uint32_t *p; 10231da177e4SLinus Torvalds 10241da177e4SLinus Torvalds RESERVE_SPACE(32+sizeof(nfs4_verifier)); 10251da177e4SLinus Torvalds WRITE32(OP_READDIR); 10261da177e4SLinus Torvalds WRITE64(readdir->cookie); 10271da177e4SLinus Torvalds WRITEMEM(readdir->verifier.data, sizeof(readdir->verifier.data)); 10281da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 10291da177e4SLinus Torvalds WRITE32(readdir->count); 10301da177e4SLinus Torvalds WRITE32(2); 103197d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 103297d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 103397d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 103497d312d0SManoj Naik else 103597d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 103697d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 103797d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1038eadf4598STrond Myklebust dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", 1039eadf4598STrond Myklebust __FUNCTION__, 1040eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1041eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1042eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1043eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1044eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 10451da177e4SLinus Torvalds 10461da177e4SLinus Torvalds /* set up reply kvec 10471da177e4SLinus Torvalds * toplevel_status + taglen + rescount + OP_PUTFH + status 10481da177e4SLinus Torvalds * + OP_READDIR + status + verifer(2) = 9 10491da177e4SLinus Torvalds */ 10501da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2; 10511da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages, 10521da177e4SLinus Torvalds readdir->pgbase, readdir->count); 1053eadf4598STrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 1054eadf4598STrond Myklebust __FUNCTION__, replen, readdir->pages, 1055eadf4598STrond Myklebust readdir->pgbase, readdir->count); 10561da177e4SLinus Torvalds 10571da177e4SLinus Torvalds return 0; 10581da177e4SLinus Torvalds } 10591da177e4SLinus Torvalds 10601da177e4SLinus Torvalds static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) 10611da177e4SLinus Torvalds { 10621da177e4SLinus Torvalds struct rpc_auth *auth = req->rq_task->tk_auth; 10631da177e4SLinus Torvalds unsigned int replen; 10641da177e4SLinus Torvalds uint32_t *p; 10651da177e4SLinus Torvalds 10661da177e4SLinus Torvalds RESERVE_SPACE(4); 10671da177e4SLinus Torvalds WRITE32(OP_READLINK); 10681da177e4SLinus Torvalds 10691da177e4SLinus Torvalds /* set up reply kvec 10701da177e4SLinus Torvalds * toplevel_status + taglen + rescount + OP_PUTFH + status 10711da177e4SLinus Torvalds * + OP_READLINK + status + string length = 8 10721da177e4SLinus Torvalds */ 10731da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2; 10741da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages, 10751da177e4SLinus Torvalds readlink->pgbase, readlink->pglen); 10761da177e4SLinus Torvalds 10771da177e4SLinus Torvalds return 0; 10781da177e4SLinus Torvalds } 10791da177e4SLinus Torvalds 10801da177e4SLinus Torvalds static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) 10811da177e4SLinus Torvalds { 10821da177e4SLinus Torvalds uint32_t *p; 10831da177e4SLinus Torvalds 10841da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 10851da177e4SLinus Torvalds WRITE32(OP_REMOVE); 10861da177e4SLinus Torvalds WRITE32(name->len); 10871da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 10881da177e4SLinus Torvalds 10891da177e4SLinus Torvalds return 0; 10901da177e4SLinus Torvalds } 10911da177e4SLinus Torvalds 10921da177e4SLinus Torvalds static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) 10931da177e4SLinus Torvalds { 10941da177e4SLinus Torvalds uint32_t *p; 10951da177e4SLinus Torvalds 10961da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 10971da177e4SLinus Torvalds WRITE32(OP_RENAME); 10981da177e4SLinus Torvalds WRITE32(oldname->len); 10991da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 11001da177e4SLinus Torvalds 11011da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 11021da177e4SLinus Torvalds WRITE32(newname->len); 11031da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 11041da177e4SLinus Torvalds 11051da177e4SLinus Torvalds return 0; 11061da177e4SLinus Torvalds } 11071da177e4SLinus Torvalds 11081da177e4SLinus Torvalds static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client_stateid) 11091da177e4SLinus Torvalds { 11101da177e4SLinus Torvalds uint32_t *p; 11111da177e4SLinus Torvalds 11121da177e4SLinus Torvalds RESERVE_SPACE(12); 11131da177e4SLinus Torvalds WRITE32(OP_RENEW); 11141da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 11151da177e4SLinus Torvalds 11161da177e4SLinus Torvalds return 0; 11171da177e4SLinus Torvalds } 11181da177e4SLinus Torvalds 11191da177e4SLinus Torvalds static int 112023ec6965SJ. Bruce Fields encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) 112123ec6965SJ. Bruce Fields { 112223ec6965SJ. Bruce Fields uint32_t *p; 112323ec6965SJ. Bruce Fields 112423ec6965SJ. Bruce Fields RESERVE_SPACE(4+sizeof(zero_stateid.data)); 112523ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 112623ec6965SJ. Bruce Fields WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data)); 112723ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 112823ec6965SJ. Bruce Fields WRITE32(1); 112923ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 113023ec6965SJ. Bruce Fields if (arg->acl_len % 4) 113123ec6965SJ. Bruce Fields return -EINVAL; 113223ec6965SJ. Bruce Fields RESERVE_SPACE(4); 113323ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 113423ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 113523ec6965SJ. Bruce Fields return 0; 113623ec6965SJ. Bruce Fields } 113723ec6965SJ. Bruce Fields 113823ec6965SJ. Bruce Fields static int 11391da177e4SLinus Torvalds encode_savefh(struct xdr_stream *xdr) 11401da177e4SLinus Torvalds { 11411da177e4SLinus Torvalds uint32_t *p; 11421da177e4SLinus Torvalds 11431da177e4SLinus Torvalds RESERVE_SPACE(4); 11441da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 11451da177e4SLinus Torvalds 11461da177e4SLinus Torvalds return 0; 11471da177e4SLinus Torvalds } 11481da177e4SLinus Torvalds 11491da177e4SLinus Torvalds static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) 11501da177e4SLinus Torvalds { 11511da177e4SLinus Torvalds int status; 11521da177e4SLinus Torvalds uint32_t *p; 11531da177e4SLinus Torvalds 11541da177e4SLinus Torvalds RESERVE_SPACE(4+sizeof(arg->stateid.data)); 11551da177e4SLinus Torvalds WRITE32(OP_SETATTR); 11561da177e4SLinus Torvalds WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data)); 11571da177e4SLinus Torvalds 11581da177e4SLinus Torvalds if ((status = encode_attrs(xdr, arg->iap, server))) 11591da177e4SLinus Torvalds return status; 11601da177e4SLinus Torvalds 11611da177e4SLinus Torvalds return 0; 11621da177e4SLinus Torvalds } 11631da177e4SLinus Torvalds 11641da177e4SLinus Torvalds static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) 11651da177e4SLinus Torvalds { 11661da177e4SLinus Torvalds uint32_t *p; 11671da177e4SLinus Torvalds 11681da177e4SLinus Torvalds RESERVE_SPACE(4 + sizeof(setclientid->sc_verifier->data)); 11691da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 11701da177e4SLinus Torvalds WRITEMEM(setclientid->sc_verifier->data, sizeof(setclientid->sc_verifier->data)); 11711da177e4SLinus Torvalds 11721da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 11731da177e4SLinus Torvalds RESERVE_SPACE(4); 11741da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 11751da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 11761da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 11771da177e4SLinus Torvalds RESERVE_SPACE(4); 11781da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 11791da177e4SLinus Torvalds 11801da177e4SLinus Torvalds return 0; 11811da177e4SLinus Torvalds } 11821da177e4SLinus Torvalds 11831da177e4SLinus Torvalds static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_client *client_state) 11841da177e4SLinus Torvalds { 11851da177e4SLinus Torvalds uint32_t *p; 11861da177e4SLinus Torvalds 11871da177e4SLinus Torvalds RESERVE_SPACE(12 + sizeof(client_state->cl_confirm.data)); 11881da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 11891da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 11901da177e4SLinus Torvalds WRITEMEM(client_state->cl_confirm.data, sizeof(client_state->cl_confirm.data)); 11911da177e4SLinus Torvalds 11921da177e4SLinus Torvalds return 0; 11931da177e4SLinus Torvalds } 11941da177e4SLinus Torvalds 11951da177e4SLinus Torvalds static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) 11961da177e4SLinus Torvalds { 11971da177e4SLinus Torvalds uint32_t *p; 11981da177e4SLinus Torvalds 11991da177e4SLinus Torvalds RESERVE_SPACE(4); 12001da177e4SLinus Torvalds WRITE32(OP_WRITE); 12011da177e4SLinus Torvalds 12021da177e4SLinus Torvalds encode_stateid(xdr, args->context); 12031da177e4SLinus Torvalds 12041da177e4SLinus Torvalds RESERVE_SPACE(16); 12051da177e4SLinus Torvalds WRITE64(args->offset); 12061da177e4SLinus Torvalds WRITE32(args->stable); 12071da177e4SLinus Torvalds WRITE32(args->count); 12081da177e4SLinus Torvalds 12091da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 12101da177e4SLinus Torvalds 12111da177e4SLinus Torvalds return 0; 12121da177e4SLinus Torvalds } 12131da177e4SLinus Torvalds 12141da177e4SLinus Torvalds static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) 12151da177e4SLinus Torvalds { 12161da177e4SLinus Torvalds uint32_t *p; 12171da177e4SLinus Torvalds 12181da177e4SLinus Torvalds RESERVE_SPACE(20); 12191da177e4SLinus Torvalds 12201da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 12211da177e4SLinus Torvalds WRITEMEM(stateid->data, sizeof(stateid->data)); 12221da177e4SLinus Torvalds return 0; 12231da177e4SLinus Torvalds 12241da177e4SLinus Torvalds } 12251da177e4SLinus Torvalds /* 12261da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 12271da177e4SLinus Torvalds */ 12281da177e4SLinus Torvalds 12291da177e4SLinus Torvalds /* 12301da177e4SLinus Torvalds * Encode an ACCESS request 12311da177e4SLinus Torvalds */ 12321da177e4SLinus Torvalds static int nfs4_xdr_enc_access(struct rpc_rqst *req, uint32_t *p, const struct nfs4_accessargs *args) 12331da177e4SLinus Torvalds { 12341da177e4SLinus Torvalds struct xdr_stream xdr; 12351da177e4SLinus Torvalds struct compound_hdr hdr = { 12361da177e4SLinus Torvalds .nops = 2, 12371da177e4SLinus Torvalds }; 12381da177e4SLinus Torvalds int status; 12391da177e4SLinus Torvalds 12401da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 12411da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 12421da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 12431da177e4SLinus Torvalds status = encode_access(&xdr, args->access); 12441da177e4SLinus Torvalds return status; 12451da177e4SLinus Torvalds } 12461da177e4SLinus Torvalds 12471da177e4SLinus Torvalds /* 12481da177e4SLinus Torvalds * Encode LOOKUP request 12491da177e4SLinus Torvalds */ 12501da177e4SLinus Torvalds static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_arg *args) 12511da177e4SLinus Torvalds { 12521da177e4SLinus Torvalds struct xdr_stream xdr; 12531da177e4SLinus Torvalds struct compound_hdr hdr = { 12541da177e4SLinus Torvalds .nops = 4, 12551da177e4SLinus Torvalds }; 12561da177e4SLinus Torvalds int status; 12571da177e4SLinus Torvalds 12581da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 12591da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 12601da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 12611da177e4SLinus Torvalds goto out; 12621da177e4SLinus Torvalds if ((status = encode_lookup(&xdr, args->name)) != 0) 12631da177e4SLinus Torvalds goto out; 12641da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 12651da177e4SLinus Torvalds goto out; 12661da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 12671da177e4SLinus Torvalds out: 12681da177e4SLinus Torvalds return status; 12691da177e4SLinus Torvalds } 12701da177e4SLinus Torvalds 12711da177e4SLinus Torvalds /* 12721da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 12731da177e4SLinus Torvalds */ 12741da177e4SLinus Torvalds static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, uint32_t *p, const struct nfs4_lookup_root_arg *args) 12751da177e4SLinus Torvalds { 12761da177e4SLinus Torvalds struct xdr_stream xdr; 12771da177e4SLinus Torvalds struct compound_hdr hdr = { 12781da177e4SLinus Torvalds .nops = 3, 12791da177e4SLinus Torvalds }; 12801da177e4SLinus Torvalds int status; 12811da177e4SLinus Torvalds 12821da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 12831da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 12841da177e4SLinus Torvalds if ((status = encode_putrootfh(&xdr)) != 0) 12851da177e4SLinus Torvalds goto out; 12861da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) == 0) 12871da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 12881da177e4SLinus Torvalds out: 12891da177e4SLinus Torvalds return status; 12901da177e4SLinus Torvalds } 12911da177e4SLinus Torvalds 12921da177e4SLinus Torvalds /* 12931da177e4SLinus Torvalds * Encode REMOVE request 12941da177e4SLinus Torvalds */ 12951da177e4SLinus Torvalds static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct nfs4_remove_arg *args) 12961da177e4SLinus Torvalds { 12971da177e4SLinus Torvalds struct xdr_stream xdr; 12981da177e4SLinus Torvalds struct compound_hdr hdr = { 12991da177e4SLinus Torvalds .nops = 2, 13001da177e4SLinus Torvalds }; 13011da177e4SLinus Torvalds int status; 13021da177e4SLinus Torvalds 13031da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13041da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13051da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 13061da177e4SLinus Torvalds status = encode_remove(&xdr, args->name); 13071da177e4SLinus Torvalds return status; 13081da177e4SLinus Torvalds } 13091da177e4SLinus Torvalds 13101da177e4SLinus Torvalds /* 13111da177e4SLinus Torvalds * Encode RENAME request 13121da177e4SLinus Torvalds */ 13131da177e4SLinus Torvalds static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct nfs4_rename_arg *args) 13141da177e4SLinus Torvalds { 13151da177e4SLinus Torvalds struct xdr_stream xdr; 13161da177e4SLinus Torvalds struct compound_hdr hdr = { 13171da177e4SLinus Torvalds .nops = 4, 13181da177e4SLinus Torvalds }; 13191da177e4SLinus Torvalds int status; 13201da177e4SLinus Torvalds 13211da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13221da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13231da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->old_dir)) != 0) 13241da177e4SLinus Torvalds goto out; 13251da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 13261da177e4SLinus Torvalds goto out; 13271da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->new_dir)) != 0) 13281da177e4SLinus Torvalds goto out; 13291da177e4SLinus Torvalds status = encode_rename(&xdr, args->old_name, args->new_name); 13301da177e4SLinus Torvalds out: 13311da177e4SLinus Torvalds return status; 13321da177e4SLinus Torvalds } 13331da177e4SLinus Torvalds 13341da177e4SLinus Torvalds /* 13351da177e4SLinus Torvalds * Encode LINK request 13361da177e4SLinus Torvalds */ 13371da177e4SLinus Torvalds static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs4_link_arg *args) 13381da177e4SLinus Torvalds { 13391da177e4SLinus Torvalds struct xdr_stream xdr; 13401da177e4SLinus Torvalds struct compound_hdr hdr = { 13411da177e4SLinus Torvalds .nops = 4, 13421da177e4SLinus Torvalds }; 13431da177e4SLinus Torvalds int status; 13441da177e4SLinus Torvalds 13451da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13461da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13471da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) != 0) 13481da177e4SLinus Torvalds goto out; 13491da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 13501da177e4SLinus Torvalds goto out; 13511da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 13521da177e4SLinus Torvalds goto out; 13531da177e4SLinus Torvalds status = encode_link(&xdr, args->name); 13541da177e4SLinus Torvalds out: 13551da177e4SLinus Torvalds return status; 13561da177e4SLinus Torvalds } 13571da177e4SLinus Torvalds 13581da177e4SLinus Torvalds /* 13591da177e4SLinus Torvalds * Encode CREATE request 13601da177e4SLinus Torvalds */ 13611da177e4SLinus Torvalds static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args) 13621da177e4SLinus Torvalds { 13631da177e4SLinus Torvalds struct xdr_stream xdr; 13641da177e4SLinus Torvalds struct compound_hdr hdr = { 13651da177e4SLinus Torvalds .nops = 4, 13661da177e4SLinus Torvalds }; 13671da177e4SLinus Torvalds int status; 13681da177e4SLinus Torvalds 13691da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13701da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 13711da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 13721da177e4SLinus Torvalds goto out; 13731da177e4SLinus Torvalds if ((status = encode_create(&xdr, args)) != 0) 13741da177e4SLinus Torvalds goto out; 13751da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 13761da177e4SLinus Torvalds goto out; 13771da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 13781da177e4SLinus Torvalds out: 13791da177e4SLinus Torvalds return status; 13801da177e4SLinus Torvalds } 13811da177e4SLinus Torvalds 13821da177e4SLinus Torvalds /* 13831da177e4SLinus Torvalds * Encode SYMLINK request 13841da177e4SLinus Torvalds */ 13851da177e4SLinus Torvalds static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_create_arg *args) 13861da177e4SLinus Torvalds { 13871da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 13881da177e4SLinus Torvalds } 13891da177e4SLinus Torvalds 13901da177e4SLinus Torvalds /* 13911da177e4SLinus Torvalds * Encode GETATTR request 13921da177e4SLinus Torvalds */ 13931da177e4SLinus Torvalds static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, uint32_t *p, const struct nfs4_getattr_arg *args) 13941da177e4SLinus Torvalds { 13951da177e4SLinus Torvalds struct xdr_stream xdr; 13961da177e4SLinus Torvalds struct compound_hdr hdr = { 13971da177e4SLinus Torvalds .nops = 2, 13981da177e4SLinus Torvalds }; 13991da177e4SLinus Torvalds int status; 14001da177e4SLinus Torvalds 14011da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14021da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14031da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 14041da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14051da177e4SLinus Torvalds return status; 14061da177e4SLinus Torvalds } 14071da177e4SLinus Torvalds 14081da177e4SLinus Torvalds /* 14091da177e4SLinus Torvalds * Encode a CLOSE request 14101da177e4SLinus Torvalds */ 14111da177e4SLinus Torvalds static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args) 14121da177e4SLinus Torvalds { 14131da177e4SLinus Torvalds struct xdr_stream xdr; 14141da177e4SLinus Torvalds struct compound_hdr hdr = { 14151da177e4SLinus Torvalds .nops = 2, 14161da177e4SLinus Torvalds }; 14171da177e4SLinus Torvalds int status; 14181da177e4SLinus Torvalds 14191da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14201da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14211da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 14221da177e4SLinus Torvalds if(status) 14231da177e4SLinus Torvalds goto out; 14241da177e4SLinus Torvalds status = encode_close(&xdr, args); 14251da177e4SLinus Torvalds out: 14261da177e4SLinus Torvalds return status; 14271da177e4SLinus Torvalds } 14281da177e4SLinus Torvalds 14291da177e4SLinus Torvalds /* 14301da177e4SLinus Torvalds * Encode an OPEN request 14311da177e4SLinus Torvalds */ 14321da177e4SLinus Torvalds static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args) 14331da177e4SLinus Torvalds { 14341da177e4SLinus Torvalds struct xdr_stream xdr; 14351da177e4SLinus Torvalds struct compound_hdr hdr = { 14361da177e4SLinus Torvalds .nops = 4, 14371da177e4SLinus Torvalds }; 14381da177e4SLinus Torvalds int status; 14391da177e4SLinus Torvalds 14401da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14411da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14421da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 14431da177e4SLinus Torvalds if (status) 14441da177e4SLinus Torvalds goto out; 14451da177e4SLinus Torvalds status = encode_open(&xdr, args); 14461da177e4SLinus Torvalds if (status) 14471da177e4SLinus Torvalds goto out; 14481da177e4SLinus Torvalds status = encode_getfh(&xdr); 14491da177e4SLinus Torvalds if (status) 14501da177e4SLinus Torvalds goto out; 14511da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14521da177e4SLinus Torvalds out: 14531da177e4SLinus Torvalds return status; 14541da177e4SLinus Torvalds } 14551da177e4SLinus Torvalds 14561da177e4SLinus Torvalds /* 14571da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 14581da177e4SLinus Torvalds */ 14591da177e4SLinus Torvalds static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_open_confirmargs *args) 14601da177e4SLinus Torvalds { 14611da177e4SLinus Torvalds struct xdr_stream xdr; 14621da177e4SLinus Torvalds struct compound_hdr hdr = { 14631da177e4SLinus Torvalds .nops = 2, 14641da177e4SLinus Torvalds }; 14651da177e4SLinus Torvalds int status; 14661da177e4SLinus Torvalds 14671da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14681da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14691da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 14701da177e4SLinus Torvalds if(status) 14711da177e4SLinus Torvalds goto out; 14721da177e4SLinus Torvalds status = encode_open_confirm(&xdr, args); 14731da177e4SLinus Torvalds out: 14741da177e4SLinus Torvalds return status; 14751da177e4SLinus Torvalds } 14761da177e4SLinus Torvalds 14771da177e4SLinus Torvalds /* 14781da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 14791da177e4SLinus Torvalds */ 14801da177e4SLinus Torvalds static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nfs_openargs *args) 14811da177e4SLinus Torvalds { 14821da177e4SLinus Torvalds struct xdr_stream xdr; 14831da177e4SLinus Torvalds struct compound_hdr hdr = { 14841da177e4SLinus Torvalds .nops = 2, 14851da177e4SLinus Torvalds }; 14861da177e4SLinus Torvalds int status; 14871da177e4SLinus Torvalds 14881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14891da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14901da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 14911da177e4SLinus Torvalds if (status) 14921da177e4SLinus Torvalds goto out; 14931da177e4SLinus Torvalds status = encode_open(&xdr, args); 14941da177e4SLinus Torvalds out: 14951da177e4SLinus Torvalds return status; 14961da177e4SLinus Torvalds } 14971da177e4SLinus Torvalds 14981da177e4SLinus Torvalds /* 14991da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 15001da177e4SLinus Torvalds */ 15011da177e4SLinus Torvalds static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct nfs_closeargs *args) 15021da177e4SLinus Torvalds { 15031da177e4SLinus Torvalds struct xdr_stream xdr; 15041da177e4SLinus Torvalds struct compound_hdr hdr = { 15051da177e4SLinus Torvalds .nops = 2, 15061da177e4SLinus Torvalds }; 15071da177e4SLinus Torvalds int status; 15081da177e4SLinus Torvalds 15091da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15101da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15111da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15121da177e4SLinus Torvalds if (status) 15131da177e4SLinus Torvalds goto out; 15141da177e4SLinus Torvalds status = encode_open_downgrade(&xdr, args); 15151da177e4SLinus Torvalds out: 15161da177e4SLinus Torvalds return status; 15171da177e4SLinus Torvalds } 15181da177e4SLinus Torvalds 15191da177e4SLinus Torvalds /* 15201da177e4SLinus Torvalds * Encode a LOCK request 15211da177e4SLinus Torvalds */ 15221da177e4SLinus Torvalds static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args) 15231da177e4SLinus Torvalds { 15241da177e4SLinus Torvalds struct xdr_stream xdr; 15251da177e4SLinus Torvalds struct compound_hdr hdr = { 15261da177e4SLinus Torvalds .nops = 2, 15271da177e4SLinus Torvalds }; 15281da177e4SLinus Torvalds int status; 15291da177e4SLinus Torvalds 15301da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15311da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15321da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15331da177e4SLinus Torvalds if(status) 15341da177e4SLinus Torvalds goto out; 15351da177e4SLinus Torvalds status = encode_lock(&xdr, args); 15361da177e4SLinus Torvalds out: 15371da177e4SLinus Torvalds return status; 15381da177e4SLinus Torvalds } 15391da177e4SLinus Torvalds 15401da177e4SLinus Torvalds /* 15411da177e4SLinus Torvalds * Encode a LOCKT request 15421da177e4SLinus Torvalds */ 15431da177e4SLinus Torvalds static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args) 15441da177e4SLinus Torvalds { 15451da177e4SLinus Torvalds struct xdr_stream xdr; 15461da177e4SLinus Torvalds struct compound_hdr hdr = { 15471da177e4SLinus Torvalds .nops = 2, 15481da177e4SLinus Torvalds }; 15491da177e4SLinus Torvalds int status; 15501da177e4SLinus Torvalds 15511da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15521da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15531da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15541da177e4SLinus Torvalds if(status) 15551da177e4SLinus Torvalds goto out; 15561da177e4SLinus Torvalds status = encode_lockt(&xdr, args); 15571da177e4SLinus Torvalds out: 15581da177e4SLinus Torvalds return status; 15591da177e4SLinus Torvalds } 15601da177e4SLinus Torvalds 15611da177e4SLinus Torvalds /* 15621da177e4SLinus Torvalds * Encode a LOCKU request 15631da177e4SLinus Torvalds */ 15641da177e4SLinus Torvalds static int nfs4_xdr_enc_locku(struct rpc_rqst *req, uint32_t *p, struct nfs_lockargs *args) 15651da177e4SLinus Torvalds { 15661da177e4SLinus Torvalds struct xdr_stream xdr; 15671da177e4SLinus Torvalds struct compound_hdr hdr = { 15681da177e4SLinus Torvalds .nops = 2, 15691da177e4SLinus Torvalds }; 15701da177e4SLinus Torvalds int status; 15711da177e4SLinus Torvalds 15721da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15731da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15741da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15751da177e4SLinus Torvalds if(status) 15761da177e4SLinus Torvalds goto out; 15771da177e4SLinus Torvalds status = encode_locku(&xdr, args); 15781da177e4SLinus Torvalds out: 15791da177e4SLinus Torvalds return status; 15801da177e4SLinus Torvalds } 15811da177e4SLinus Torvalds 15821da177e4SLinus Torvalds /* 15831da177e4SLinus Torvalds * Encode a READLINK request 15841da177e4SLinus Torvalds */ 15851da177e4SLinus Torvalds static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readlink *args) 15861da177e4SLinus Torvalds { 15871da177e4SLinus Torvalds struct xdr_stream xdr; 15881da177e4SLinus Torvalds struct compound_hdr hdr = { 15891da177e4SLinus Torvalds .nops = 2, 15901da177e4SLinus Torvalds }; 15911da177e4SLinus Torvalds int status; 15921da177e4SLinus Torvalds 15931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15941da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15951da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15961da177e4SLinus Torvalds if(status) 15971da177e4SLinus Torvalds goto out; 15981da177e4SLinus Torvalds status = encode_readlink(&xdr, args, req); 15991da177e4SLinus Torvalds out: 16001da177e4SLinus Torvalds return status; 16011da177e4SLinus Torvalds } 16021da177e4SLinus Torvalds 16031da177e4SLinus Torvalds /* 16041da177e4SLinus Torvalds * Encode a READDIR request 16051da177e4SLinus Torvalds */ 16061da177e4SLinus Torvalds static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, uint32_t *p, const struct nfs4_readdir_arg *args) 16071da177e4SLinus Torvalds { 16081da177e4SLinus Torvalds struct xdr_stream xdr; 16091da177e4SLinus Torvalds struct compound_hdr hdr = { 16101da177e4SLinus Torvalds .nops = 2, 16111da177e4SLinus Torvalds }; 16121da177e4SLinus Torvalds int status; 16131da177e4SLinus Torvalds 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_readdir(&xdr, args, req); 16201da177e4SLinus Torvalds out: 16211da177e4SLinus Torvalds return status; 16221da177e4SLinus Torvalds } 16231da177e4SLinus Torvalds 16241da177e4SLinus Torvalds /* 16251da177e4SLinus Torvalds * Encode a READ request 16261da177e4SLinus Torvalds */ 16271da177e4SLinus Torvalds static int nfs4_xdr_enc_read(struct rpc_rqst *req, uint32_t *p, struct nfs_readargs *args) 16281da177e4SLinus Torvalds { 16291da177e4SLinus Torvalds struct rpc_auth *auth = req->rq_task->tk_auth; 16301da177e4SLinus Torvalds struct xdr_stream xdr; 16311da177e4SLinus Torvalds struct compound_hdr hdr = { 16321da177e4SLinus Torvalds .nops = 2, 16331da177e4SLinus Torvalds }; 16341da177e4SLinus Torvalds int replen, status; 16351da177e4SLinus Torvalds 16361da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16371da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16381da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16391da177e4SLinus Torvalds if (status) 16401da177e4SLinus Torvalds goto out; 16411da177e4SLinus Torvalds status = encode_read(&xdr, args); 16421da177e4SLinus Torvalds if (status) 16431da177e4SLinus Torvalds goto out; 16441da177e4SLinus Torvalds 16451da177e4SLinus Torvalds /* set up reply kvec 16461da177e4SLinus Torvalds * toplevel status + taglen=0 + rescount + OP_PUTFH + status 16471da177e4SLinus Torvalds * + OP_READ + status + eof + datalen = 9 16481da177e4SLinus Torvalds */ 16491da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; 16501da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, 16511da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 16521da177e4SLinus Torvalds out: 16531da177e4SLinus Torvalds return status; 16541da177e4SLinus Torvalds } 16551da177e4SLinus Torvalds 16561da177e4SLinus Torvalds /* 16571da177e4SLinus Torvalds * Encode an SETATTR request 16581da177e4SLinus Torvalds */ 16591da177e4SLinus Torvalds static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, uint32_t *p, struct nfs_setattrargs *args) 16601da177e4SLinus Torvalds 16611da177e4SLinus Torvalds { 16621da177e4SLinus Torvalds struct xdr_stream xdr; 16631da177e4SLinus Torvalds struct compound_hdr hdr = { 16641da177e4SLinus Torvalds .nops = 3, 16651da177e4SLinus Torvalds }; 16661da177e4SLinus Torvalds int status; 16671da177e4SLinus Torvalds 16681da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16691da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16701da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16711da177e4SLinus Torvalds if(status) 16721da177e4SLinus Torvalds goto out; 16731da177e4SLinus Torvalds status = encode_setattr(&xdr, args, args->server); 16741da177e4SLinus Torvalds if(status) 16751da177e4SLinus Torvalds goto out; 16761da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 16771da177e4SLinus Torvalds out: 16781da177e4SLinus Torvalds return status; 16791da177e4SLinus Torvalds } 16801da177e4SLinus Torvalds 16811da177e4SLinus Torvalds /* 1682029d105eSJ. Bruce Fields * Encode a GETACL request 1683029d105eSJ. Bruce Fields */ 1684029d105eSJ. Bruce Fields static int 1685029d105eSJ. Bruce Fields nfs4_xdr_enc_getacl(struct rpc_rqst *req, uint32_t *p, 1686029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 1687029d105eSJ. Bruce Fields { 1688029d105eSJ. Bruce Fields struct xdr_stream xdr; 1689029d105eSJ. Bruce Fields struct rpc_auth *auth = req->rq_task->tk_auth; 1690029d105eSJ. Bruce Fields struct compound_hdr hdr = { 1691029d105eSJ. Bruce Fields .nops = 2, 1692029d105eSJ. Bruce Fields }; 1693029d105eSJ. Bruce Fields int replen, status; 1694029d105eSJ. Bruce Fields 1695029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1696029d105eSJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 1697029d105eSJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 1698029d105eSJ. Bruce Fields if (status) 1699029d105eSJ. Bruce Fields goto out; 1700029d105eSJ. Bruce Fields status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); 1701029d105eSJ. Bruce Fields /* set up reply buffer: */ 1702029d105eSJ. Bruce Fields replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; 1703029d105eSJ. Bruce Fields xdr_inline_pages(&req->rq_rcv_buf, replen, 1704029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 1705029d105eSJ. Bruce Fields out: 1706029d105eSJ. Bruce Fields return status; 1707029d105eSJ. Bruce Fields } 1708029d105eSJ. Bruce Fields 1709029d105eSJ. Bruce Fields /* 17101da177e4SLinus Torvalds * Encode a WRITE request 17111da177e4SLinus Torvalds */ 17121da177e4SLinus Torvalds static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args) 17131da177e4SLinus Torvalds { 17141da177e4SLinus Torvalds struct xdr_stream xdr; 17151da177e4SLinus Torvalds struct compound_hdr hdr = { 17161da177e4SLinus Torvalds .nops = 2, 17171da177e4SLinus Torvalds }; 17181da177e4SLinus Torvalds int status; 17191da177e4SLinus Torvalds 17201da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17211da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17221da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17231da177e4SLinus Torvalds if (status) 17241da177e4SLinus Torvalds goto out; 17251da177e4SLinus Torvalds status = encode_write(&xdr, args); 17261da177e4SLinus Torvalds out: 17271da177e4SLinus Torvalds return status; 17281da177e4SLinus Torvalds } 17291da177e4SLinus Torvalds 17301da177e4SLinus Torvalds /* 17311da177e4SLinus Torvalds * a COMMIT request 17321da177e4SLinus Torvalds */ 17331da177e4SLinus Torvalds static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_writeargs *args) 17341da177e4SLinus Torvalds { 17351da177e4SLinus Torvalds struct xdr_stream xdr; 17361da177e4SLinus Torvalds struct compound_hdr hdr = { 17371da177e4SLinus Torvalds .nops = 2, 17381da177e4SLinus Torvalds }; 17391da177e4SLinus Torvalds int status; 17401da177e4SLinus Torvalds 17411da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17421da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17431da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17441da177e4SLinus Torvalds if (status) 17451da177e4SLinus Torvalds goto out; 17461da177e4SLinus Torvalds status = encode_commit(&xdr, args); 17471da177e4SLinus Torvalds out: 17481da177e4SLinus Torvalds return status; 17491da177e4SLinus Torvalds } 17501da177e4SLinus Torvalds 17511da177e4SLinus Torvalds /* 17521da177e4SLinus Torvalds * FSINFO request 17531da177e4SLinus Torvalds */ 17541da177e4SLinus Torvalds static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs4_fsinfo_arg *args) 17551da177e4SLinus Torvalds { 17561da177e4SLinus Torvalds struct xdr_stream xdr; 17571da177e4SLinus Torvalds struct compound_hdr hdr = { 17581da177e4SLinus Torvalds .nops = 2, 17591da177e4SLinus Torvalds }; 17601da177e4SLinus Torvalds int status; 17611da177e4SLinus Torvalds 17621da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17631da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17641da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17651da177e4SLinus Torvalds if (!status) 17661da177e4SLinus Torvalds status = encode_fsinfo(&xdr, args->bitmask); 17671da177e4SLinus Torvalds return status; 17681da177e4SLinus Torvalds } 17691da177e4SLinus Torvalds 17701da177e4SLinus Torvalds /* 17711da177e4SLinus Torvalds * a PATHCONF request 17721da177e4SLinus Torvalds */ 17731da177e4SLinus Torvalds static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, uint32_t *p, const struct nfs4_pathconf_arg *args) 17741da177e4SLinus Torvalds { 17751da177e4SLinus Torvalds struct xdr_stream xdr; 17761da177e4SLinus Torvalds struct compound_hdr hdr = { 17771da177e4SLinus Torvalds .nops = 2, 17781da177e4SLinus Torvalds }; 17791da177e4SLinus Torvalds int status; 17801da177e4SLinus Torvalds 17811da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17821da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17831da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17841da177e4SLinus Torvalds if (!status) 17851da177e4SLinus Torvalds status = encode_getattr_one(&xdr, 17861da177e4SLinus Torvalds args->bitmask[0] & nfs4_pathconf_bitmap[0]); 17871da177e4SLinus Torvalds return status; 17881da177e4SLinus Torvalds } 17891da177e4SLinus Torvalds 17901da177e4SLinus Torvalds /* 17911da177e4SLinus Torvalds * a STATFS request 17921da177e4SLinus Torvalds */ 17931da177e4SLinus Torvalds static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, uint32_t *p, const struct nfs4_statfs_arg *args) 17941da177e4SLinus Torvalds { 17951da177e4SLinus Torvalds struct xdr_stream xdr; 17961da177e4SLinus Torvalds struct compound_hdr hdr = { 17971da177e4SLinus Torvalds .nops = 2, 17981da177e4SLinus Torvalds }; 17991da177e4SLinus Torvalds int status; 18001da177e4SLinus Torvalds 18011da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18021da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18031da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18041da177e4SLinus Torvalds if (status == 0) 18051da177e4SLinus Torvalds status = encode_getattr_two(&xdr, 18061da177e4SLinus Torvalds args->bitmask[0] & nfs4_statfs_bitmap[0], 18071da177e4SLinus Torvalds args->bitmask[1] & nfs4_statfs_bitmap[1]); 18081da177e4SLinus Torvalds return status; 18091da177e4SLinus Torvalds } 18101da177e4SLinus Torvalds 18111da177e4SLinus Torvalds /* 18121da177e4SLinus Torvalds * GETATTR_BITMAP request 18131da177e4SLinus Torvalds */ 18141da177e4SLinus Torvalds static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, uint32_t *p, const struct nfs_fh *fhandle) 18151da177e4SLinus Torvalds { 18161da177e4SLinus Torvalds struct xdr_stream xdr; 18171da177e4SLinus Torvalds struct compound_hdr hdr = { 18181da177e4SLinus Torvalds .nops = 2, 18191da177e4SLinus Torvalds }; 18201da177e4SLinus Torvalds int status; 18211da177e4SLinus Torvalds 18221da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18231da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18241da177e4SLinus Torvalds status = encode_putfh(&xdr, fhandle); 18251da177e4SLinus Torvalds if (status == 0) 18261da177e4SLinus Torvalds status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 18271da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 18281da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 18291da177e4SLinus Torvalds FATTR4_WORD0_ACLSUPPORT); 18301da177e4SLinus Torvalds return status; 18311da177e4SLinus Torvalds } 18321da177e4SLinus Torvalds 18331da177e4SLinus Torvalds /* 18341da177e4SLinus Torvalds * a RENEW request 18351da177e4SLinus Torvalds */ 18361da177e4SLinus Torvalds static int nfs4_xdr_enc_renew(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp) 18371da177e4SLinus Torvalds { 18381da177e4SLinus Torvalds struct xdr_stream xdr; 18391da177e4SLinus Torvalds struct compound_hdr hdr = { 18401da177e4SLinus Torvalds .nops = 1, 18411da177e4SLinus Torvalds }; 18421da177e4SLinus Torvalds 18431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18441da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18451da177e4SLinus Torvalds return encode_renew(&xdr, clp); 18461da177e4SLinus Torvalds } 18471da177e4SLinus Torvalds 18481da177e4SLinus Torvalds /* 18491da177e4SLinus Torvalds * a SETCLIENTID request 18501da177e4SLinus Torvalds */ 18511da177e4SLinus Torvalds static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, uint32_t *p, struct nfs4_setclientid *sc) 18521da177e4SLinus Torvalds { 18531da177e4SLinus Torvalds struct xdr_stream xdr; 18541da177e4SLinus Torvalds struct compound_hdr hdr = { 18551da177e4SLinus Torvalds .nops = 1, 18561da177e4SLinus Torvalds }; 18571da177e4SLinus Torvalds 18581da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18591da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18601da177e4SLinus Torvalds return encode_setclientid(&xdr, sc); 18611da177e4SLinus Torvalds } 18621da177e4SLinus Torvalds 18631da177e4SLinus Torvalds /* 18641da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 18651da177e4SLinus Torvalds */ 18661da177e4SLinus Torvalds static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs4_client *clp) 18671da177e4SLinus Torvalds { 18681da177e4SLinus Torvalds struct xdr_stream xdr; 18691da177e4SLinus Torvalds struct compound_hdr hdr = { 18701da177e4SLinus Torvalds .nops = 3, 18711da177e4SLinus Torvalds }; 18721da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 18731da177e4SLinus Torvalds int status; 18741da177e4SLinus Torvalds 18751da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18761da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18771da177e4SLinus Torvalds status = encode_setclientid_confirm(&xdr, clp); 18781da177e4SLinus Torvalds if (!status) 18791da177e4SLinus Torvalds status = encode_putrootfh(&xdr); 18801da177e4SLinus Torvalds if (!status) 18811da177e4SLinus Torvalds status = encode_fsinfo(&xdr, lease_bitmap); 18821da177e4SLinus Torvalds return status; 18831da177e4SLinus Torvalds } 18841da177e4SLinus Torvalds 18851da177e4SLinus Torvalds /* 18861da177e4SLinus Torvalds * DELEGRETURN request 18871da177e4SLinus Torvalds */ 18881da177e4SLinus Torvalds static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const struct nfs4_delegreturnargs *args) 18891da177e4SLinus Torvalds { 18901da177e4SLinus Torvalds struct xdr_stream xdr; 18911da177e4SLinus Torvalds struct compound_hdr hdr = { 18921da177e4SLinus Torvalds .nops = 2, 18931da177e4SLinus Torvalds }; 18941da177e4SLinus Torvalds int status; 18951da177e4SLinus Torvalds 18961da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18971da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18981da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fhandle)) == 0) 18991da177e4SLinus Torvalds status = encode_delegreturn(&xdr, args->stateid); 19001da177e4SLinus Torvalds return status; 19011da177e4SLinus Torvalds } 19021da177e4SLinus Torvalds 19031da177e4SLinus Torvalds /* 19041da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 19051da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 19061da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 19071da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 19081da177e4SLinus Torvalds * 19091da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 19101da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 19111da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 19121da177e4SLinus Torvalds */ 19131da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 19141da177e4SLinus Torvalds #define READ64(x) do { \ 19151da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 19161da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 19171da177e4SLinus Torvalds } while (0) 19181da177e4SLinus Torvalds #define READTIME(x) do { \ 19191da177e4SLinus Torvalds p++; \ 19201da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 19211da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 19221da177e4SLinus Torvalds } while (0) 19231da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 19241da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 19251da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 19261da177e4SLinus Torvalds } while (0) 19271da177e4SLinus Torvalds 19281da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 19291da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 19301da177e4SLinus Torvalds if (!p) { \ 19311da177e4SLinus Torvalds printk(KERN_WARNING "%s: reply buffer overflowed in line %d.", \ 19321da177e4SLinus Torvalds __FUNCTION__, __LINE__); \ 19331da177e4SLinus Torvalds return -EIO; \ 19341da177e4SLinus Torvalds } \ 19351da177e4SLinus Torvalds } while (0) 19361da177e4SLinus Torvalds 19371da177e4SLinus Torvalds static int decode_opaque_inline(struct xdr_stream *xdr, uint32_t *len, char **string) 19381da177e4SLinus Torvalds { 19391da177e4SLinus Torvalds uint32_t *p; 19401da177e4SLinus Torvalds 19411da177e4SLinus Torvalds READ_BUF(4); 19421da177e4SLinus Torvalds READ32(*len); 19431da177e4SLinus Torvalds READ_BUF(*len); 19441da177e4SLinus Torvalds *string = (char *)p; 19451da177e4SLinus Torvalds return 0; 19461da177e4SLinus Torvalds } 19471da177e4SLinus Torvalds 19481da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 19491da177e4SLinus Torvalds { 19501da177e4SLinus Torvalds uint32_t *p; 19511da177e4SLinus Torvalds 19521da177e4SLinus Torvalds READ_BUF(8); 19531da177e4SLinus Torvalds READ32(hdr->status); 19541da177e4SLinus Torvalds READ32(hdr->taglen); 19551da177e4SLinus Torvalds 19561da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 19571da177e4SLinus Torvalds hdr->tag = (char *)p; 19581da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 19591da177e4SLinus Torvalds READ32(hdr->nops); 19601da177e4SLinus Torvalds return 0; 19611da177e4SLinus Torvalds } 19621da177e4SLinus Torvalds 19631da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 19641da177e4SLinus Torvalds { 19651da177e4SLinus Torvalds uint32_t *p; 19661da177e4SLinus Torvalds uint32_t opnum; 19671da177e4SLinus Torvalds int32_t nfserr; 19681da177e4SLinus Torvalds 19691da177e4SLinus Torvalds READ_BUF(8); 19701da177e4SLinus Torvalds READ32(opnum); 19711da177e4SLinus Torvalds if (opnum != expected) { 19721da177e4SLinus Torvalds printk(KERN_NOTICE 19731da177e4SLinus Torvalds "nfs4_decode_op_hdr: Server returned operation" 19741da177e4SLinus Torvalds " %d but we issued a request for %d\n", 19751da177e4SLinus Torvalds opnum, expected); 19761da177e4SLinus Torvalds return -EIO; 19771da177e4SLinus Torvalds } 19781da177e4SLinus Torvalds READ32(nfserr); 19791da177e4SLinus Torvalds if (nfserr != NFS_OK) 19801da177e4SLinus Torvalds return -nfs_stat_to_errno(nfserr); 19811da177e4SLinus Torvalds return 0; 19821da177e4SLinus Torvalds } 19831da177e4SLinus Torvalds 19841da177e4SLinus Torvalds /* Dummy routine */ 19851da177e4SLinus Torvalds static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs4_client *clp) 19861da177e4SLinus Torvalds { 19871da177e4SLinus Torvalds uint32_t *p; 19881da177e4SLinus Torvalds uint32_t strlen; 19891da177e4SLinus Torvalds char *str; 19901da177e4SLinus Torvalds 19911da177e4SLinus Torvalds READ_BUF(12); 19921da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 19931da177e4SLinus Torvalds } 19941da177e4SLinus Torvalds 19951da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 19961da177e4SLinus Torvalds { 19971da177e4SLinus Torvalds uint32_t bmlen, *p; 19981da177e4SLinus Torvalds 19991da177e4SLinus Torvalds READ_BUF(4); 20001da177e4SLinus Torvalds READ32(bmlen); 20011da177e4SLinus Torvalds 20021da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 20031da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 20041da177e4SLinus Torvalds if (bmlen > 0) { 20051da177e4SLinus Torvalds READ32(bitmap[0]); 20061da177e4SLinus Torvalds if (bmlen > 1) 20071da177e4SLinus Torvalds READ32(bitmap[1]); 20081da177e4SLinus Torvalds } 20091da177e4SLinus Torvalds return 0; 20101da177e4SLinus Torvalds } 20111da177e4SLinus Torvalds 20121da177e4SLinus Torvalds static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, uint32_t **savep) 20131da177e4SLinus Torvalds { 20141da177e4SLinus Torvalds uint32_t *p; 20151da177e4SLinus Torvalds 20161da177e4SLinus Torvalds READ_BUF(4); 20171da177e4SLinus Torvalds READ32(*attrlen); 20181da177e4SLinus Torvalds *savep = xdr->p; 20191da177e4SLinus Torvalds return 0; 20201da177e4SLinus Torvalds } 20211da177e4SLinus Torvalds 20221da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 20231da177e4SLinus Torvalds { 20241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 20251da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 20261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 20271da177e4SLinus Torvalds } else 20281da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 20291da177e4SLinus Torvalds dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); 20301da177e4SLinus Torvalds return 0; 20311da177e4SLinus Torvalds } 20321da177e4SLinus Torvalds 20331da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 20341da177e4SLinus Torvalds { 20351da177e4SLinus Torvalds uint32_t *p; 20361da177e4SLinus Torvalds 20371da177e4SLinus Torvalds *type = 0; 20381da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 20391da177e4SLinus Torvalds return -EIO; 20401da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 20411da177e4SLinus Torvalds READ_BUF(4); 20421da177e4SLinus Torvalds READ32(*type); 20431da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 20441da177e4SLinus Torvalds dprintk("%s: bad type %d\n", __FUNCTION__, *type); 20451da177e4SLinus Torvalds return -EIO; 20461da177e4SLinus Torvalds } 20471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 20481da177e4SLinus Torvalds } 20491da177e4SLinus Torvalds dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); 20501da177e4SLinus Torvalds return 0; 20511da177e4SLinus Torvalds } 20521da177e4SLinus Torvalds 20531da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 20541da177e4SLinus Torvalds { 20551da177e4SLinus Torvalds uint32_t *p; 20561da177e4SLinus Torvalds 20571da177e4SLinus Torvalds *change = 0; 20581da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 20591da177e4SLinus Torvalds return -EIO; 20601da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 20611da177e4SLinus Torvalds READ_BUF(8); 20621da177e4SLinus Torvalds READ64(*change); 20631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 20641da177e4SLinus Torvalds } 20651da177e4SLinus Torvalds dprintk("%s: change attribute=%Lu\n", __FUNCTION__, 20661da177e4SLinus Torvalds (unsigned long long)*change); 20671da177e4SLinus Torvalds return 0; 20681da177e4SLinus Torvalds } 20691da177e4SLinus Torvalds 20701da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 20711da177e4SLinus Torvalds { 20721da177e4SLinus Torvalds uint32_t *p; 20731da177e4SLinus Torvalds 20741da177e4SLinus Torvalds *size = 0; 20751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 20761da177e4SLinus Torvalds return -EIO; 20771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 20781da177e4SLinus Torvalds READ_BUF(8); 20791da177e4SLinus Torvalds READ64(*size); 20801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 20811da177e4SLinus Torvalds } 20821da177e4SLinus Torvalds dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); 20831da177e4SLinus Torvalds return 0; 20841da177e4SLinus Torvalds } 20851da177e4SLinus Torvalds 20861da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 20871da177e4SLinus Torvalds { 20881da177e4SLinus Torvalds uint32_t *p; 20891da177e4SLinus Torvalds 20901da177e4SLinus Torvalds *res = 0; 20911da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 20921da177e4SLinus Torvalds return -EIO; 20931da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 20941da177e4SLinus Torvalds READ_BUF(4); 20951da177e4SLinus Torvalds READ32(*res); 20961da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 20971da177e4SLinus Torvalds } 20981da177e4SLinus Torvalds dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 20991da177e4SLinus Torvalds return 0; 21001da177e4SLinus Torvalds } 21011da177e4SLinus Torvalds 21021da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 21031da177e4SLinus Torvalds { 21041da177e4SLinus Torvalds uint32_t *p; 21051da177e4SLinus Torvalds 21061da177e4SLinus Torvalds *res = 0; 21071da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 21081da177e4SLinus Torvalds return -EIO; 21091da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 21101da177e4SLinus Torvalds READ_BUF(4); 21111da177e4SLinus Torvalds READ32(*res); 21121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 21131da177e4SLinus Torvalds } 21141da177e4SLinus Torvalds dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 21151da177e4SLinus Torvalds return 0; 21161da177e4SLinus Torvalds } 21171da177e4SLinus Torvalds 21181da177e4SLinus Torvalds static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fsid *fsid) 21191da177e4SLinus Torvalds { 21201da177e4SLinus Torvalds uint32_t *p; 21211da177e4SLinus Torvalds 21221da177e4SLinus Torvalds fsid->major = 0; 21231da177e4SLinus Torvalds fsid->minor = 0; 21241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 21251da177e4SLinus Torvalds return -EIO; 21261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 21271da177e4SLinus Torvalds READ_BUF(16); 21281da177e4SLinus Torvalds READ64(fsid->major); 21291da177e4SLinus Torvalds READ64(fsid->minor); 21301da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 21311da177e4SLinus Torvalds } 21321da177e4SLinus Torvalds dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, 21331da177e4SLinus Torvalds (unsigned long long)fsid->major, 21341da177e4SLinus Torvalds (unsigned long long)fsid->minor); 21351da177e4SLinus Torvalds return 0; 21361da177e4SLinus Torvalds } 21371da177e4SLinus Torvalds 21381da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 21391da177e4SLinus Torvalds { 21401da177e4SLinus Torvalds uint32_t *p; 21411da177e4SLinus Torvalds 21421da177e4SLinus Torvalds *res = 60; 21431da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 21441da177e4SLinus Torvalds return -EIO; 21451da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 21461da177e4SLinus Torvalds READ_BUF(4); 21471da177e4SLinus Torvalds READ32(*res); 21481da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 21491da177e4SLinus Torvalds } 21501da177e4SLinus Torvalds dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); 21511da177e4SLinus Torvalds return 0; 21521da177e4SLinus Torvalds } 21531da177e4SLinus Torvalds 21541da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 21551da177e4SLinus Torvalds { 21561da177e4SLinus Torvalds uint32_t *p; 21571da177e4SLinus Torvalds 21581da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 21591da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 21601da177e4SLinus Torvalds return -EIO; 21611da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 21621da177e4SLinus Torvalds READ_BUF(4); 21631da177e4SLinus Torvalds READ32(*res); 21641da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 21651da177e4SLinus Torvalds } 21661da177e4SLinus Torvalds dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); 21671da177e4SLinus Torvalds return 0; 21681da177e4SLinus Torvalds } 21691da177e4SLinus Torvalds 21701da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 21711da177e4SLinus Torvalds { 21721da177e4SLinus Torvalds uint32_t *p; 21731da177e4SLinus Torvalds 21741da177e4SLinus Torvalds *fileid = 0; 21751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 21761da177e4SLinus Torvalds return -EIO; 21771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 21781da177e4SLinus Torvalds READ_BUF(8); 21791da177e4SLinus Torvalds READ64(*fileid); 21801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 21811da177e4SLinus Torvalds } 21821da177e4SLinus Torvalds dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 21831da177e4SLinus Torvalds return 0; 21841da177e4SLinus Torvalds } 21851da177e4SLinus Torvalds 21861da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 21871da177e4SLinus Torvalds { 21881da177e4SLinus Torvalds uint32_t *p; 21891da177e4SLinus Torvalds int status = 0; 21901da177e4SLinus Torvalds 21911da177e4SLinus Torvalds *res = 0; 21921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 21931da177e4SLinus Torvalds return -EIO; 21941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 21951da177e4SLinus Torvalds READ_BUF(8); 21961da177e4SLinus Torvalds READ64(*res); 21971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 21981da177e4SLinus Torvalds } 21991da177e4SLinus Torvalds dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 22001da177e4SLinus Torvalds return status; 22011da177e4SLinus Torvalds } 22021da177e4SLinus Torvalds 22031da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 22041da177e4SLinus Torvalds { 22051da177e4SLinus Torvalds uint32_t *p; 22061da177e4SLinus Torvalds int status = 0; 22071da177e4SLinus Torvalds 22081da177e4SLinus Torvalds *res = 0; 22091da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 22101da177e4SLinus Torvalds return -EIO; 22111da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 22121da177e4SLinus Torvalds READ_BUF(8); 22131da177e4SLinus Torvalds READ64(*res); 22141da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 22151da177e4SLinus Torvalds } 22161da177e4SLinus Torvalds dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 22171da177e4SLinus Torvalds return status; 22181da177e4SLinus Torvalds } 22191da177e4SLinus Torvalds 22201da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 22211da177e4SLinus Torvalds { 22221da177e4SLinus Torvalds uint32_t *p; 22231da177e4SLinus Torvalds int status = 0; 22241da177e4SLinus Torvalds 22251da177e4SLinus Torvalds *res = 0; 22261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 22271da177e4SLinus Torvalds return -EIO; 22281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 22291da177e4SLinus Torvalds READ_BUF(8); 22301da177e4SLinus Torvalds READ64(*res); 22311da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 22321da177e4SLinus Torvalds } 22331da177e4SLinus Torvalds dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 22341da177e4SLinus Torvalds return status; 22351da177e4SLinus Torvalds } 22361da177e4SLinus Torvalds 22371da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 22381da177e4SLinus Torvalds { 22391da177e4SLinus Torvalds uint32_t *p; 22401da177e4SLinus Torvalds int status = 0; 22411da177e4SLinus Torvalds 22421da177e4SLinus Torvalds *res = 0; 22431da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 22441da177e4SLinus Torvalds return -EIO; 22451da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 22461da177e4SLinus Torvalds READ_BUF(8); 22471da177e4SLinus Torvalds READ64(*res); 22481da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 22491da177e4SLinus Torvalds } 22501da177e4SLinus Torvalds dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); 22511da177e4SLinus Torvalds return status; 22521da177e4SLinus Torvalds } 22531da177e4SLinus Torvalds 22541da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 22551da177e4SLinus Torvalds { 22561da177e4SLinus Torvalds uint32_t *p; 22571da177e4SLinus Torvalds int status = 0; 22581da177e4SLinus Torvalds 22591da177e4SLinus Torvalds *maxlink = 1; 22601da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 22611da177e4SLinus Torvalds return -EIO; 22621da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 22631da177e4SLinus Torvalds READ_BUF(4); 22641da177e4SLinus Torvalds READ32(*maxlink); 22651da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 22661da177e4SLinus Torvalds } 22671da177e4SLinus Torvalds dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); 22681da177e4SLinus Torvalds return status; 22691da177e4SLinus Torvalds } 22701da177e4SLinus Torvalds 22711da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 22721da177e4SLinus Torvalds { 22731da177e4SLinus Torvalds uint32_t *p; 22741da177e4SLinus Torvalds int status = 0; 22751da177e4SLinus Torvalds 22761da177e4SLinus Torvalds *maxname = 1024; 22771da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 22781da177e4SLinus Torvalds return -EIO; 22791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 22801da177e4SLinus Torvalds READ_BUF(4); 22811da177e4SLinus Torvalds READ32(*maxname); 22821da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 22831da177e4SLinus Torvalds } 22841da177e4SLinus Torvalds dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); 22851da177e4SLinus Torvalds return status; 22861da177e4SLinus Torvalds } 22871da177e4SLinus Torvalds 22881da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22891da177e4SLinus Torvalds { 22901da177e4SLinus Torvalds uint32_t *p; 22911da177e4SLinus Torvalds int status = 0; 22921da177e4SLinus Torvalds 22931da177e4SLinus Torvalds *res = 1024; 22941da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 22951da177e4SLinus Torvalds return -EIO; 22961da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 22971da177e4SLinus Torvalds uint64_t maxread; 22981da177e4SLinus Torvalds READ_BUF(8); 22991da177e4SLinus Torvalds READ64(maxread); 23001da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 23011da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 23021da177e4SLinus Torvalds *res = (uint32_t)maxread; 23031da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 23041da177e4SLinus Torvalds } 23051da177e4SLinus Torvalds dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); 23061da177e4SLinus Torvalds return status; 23071da177e4SLinus Torvalds } 23081da177e4SLinus Torvalds 23091da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23101da177e4SLinus Torvalds { 23111da177e4SLinus Torvalds uint32_t *p; 23121da177e4SLinus Torvalds int status = 0; 23131da177e4SLinus Torvalds 23141da177e4SLinus Torvalds *res = 1024; 23151da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 23161da177e4SLinus Torvalds return -EIO; 23171da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 23181da177e4SLinus Torvalds uint64_t maxwrite; 23191da177e4SLinus Torvalds READ_BUF(8); 23201da177e4SLinus Torvalds READ64(maxwrite); 23211da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 23221da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 23231da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 23241da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 23251da177e4SLinus Torvalds } 23261da177e4SLinus Torvalds dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); 23271da177e4SLinus Torvalds return status; 23281da177e4SLinus Torvalds } 23291da177e4SLinus Torvalds 23301da177e4SLinus Torvalds static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) 23311da177e4SLinus Torvalds { 23321da177e4SLinus Torvalds uint32_t *p; 23331da177e4SLinus Torvalds 23341da177e4SLinus Torvalds *mode = 0; 23351da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 23361da177e4SLinus Torvalds return -EIO; 23371da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 23381da177e4SLinus Torvalds READ_BUF(4); 23391da177e4SLinus Torvalds READ32(*mode); 23401da177e4SLinus Torvalds *mode &= ~S_IFMT; 23411da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 23421da177e4SLinus Torvalds } 23431da177e4SLinus Torvalds dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); 23441da177e4SLinus Torvalds return 0; 23451da177e4SLinus Torvalds } 23461da177e4SLinus Torvalds 23471da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 23481da177e4SLinus Torvalds { 23491da177e4SLinus Torvalds uint32_t *p; 23501da177e4SLinus Torvalds 23511da177e4SLinus Torvalds *nlink = 1; 23521da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 23531da177e4SLinus Torvalds return -EIO; 23541da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 23551da177e4SLinus Torvalds READ_BUF(4); 23561da177e4SLinus Torvalds READ32(*nlink); 23571da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 23581da177e4SLinus Torvalds } 23591da177e4SLinus Torvalds dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); 23601da177e4SLinus Torvalds return 0; 23611da177e4SLinus Torvalds } 23621da177e4SLinus Torvalds 23631da177e4SLinus Torvalds static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *uid) 23641da177e4SLinus Torvalds { 23651da177e4SLinus Torvalds uint32_t len, *p; 23661da177e4SLinus Torvalds 23671da177e4SLinus Torvalds *uid = -2; 23681da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 23691da177e4SLinus Torvalds return -EIO; 23701da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 23711da177e4SLinus Torvalds READ_BUF(4); 23721da177e4SLinus Torvalds READ32(len); 23731da177e4SLinus Torvalds READ_BUF(len); 23741da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 23751da177e4SLinus Torvalds if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) 23761da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 23771da177e4SLinus Torvalds __FUNCTION__); 23781da177e4SLinus Torvalds } else 23791da177e4SLinus Torvalds printk(KERN_WARNING "%s: name too long (%u)!\n", 23801da177e4SLinus Torvalds __FUNCTION__, len); 23811da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 23821da177e4SLinus Torvalds } 23831da177e4SLinus Torvalds dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); 23841da177e4SLinus Torvalds return 0; 23851da177e4SLinus Torvalds } 23861da177e4SLinus Torvalds 23871da177e4SLinus Torvalds static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_client *clp, int32_t *gid) 23881da177e4SLinus Torvalds { 23891da177e4SLinus Torvalds uint32_t len, *p; 23901da177e4SLinus Torvalds 23911da177e4SLinus Torvalds *gid = -2; 23921da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 23931da177e4SLinus Torvalds return -EIO; 23941da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 23951da177e4SLinus Torvalds READ_BUF(4); 23961da177e4SLinus Torvalds READ32(len); 23971da177e4SLinus Torvalds READ_BUF(len); 23981da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 23991da177e4SLinus Torvalds if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) 24001da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 24011da177e4SLinus Torvalds __FUNCTION__); 24021da177e4SLinus Torvalds } else 24031da177e4SLinus Torvalds printk(KERN_WARNING "%s: name too long (%u)!\n", 24041da177e4SLinus Torvalds __FUNCTION__, len); 24051da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 24061da177e4SLinus Torvalds } 24071da177e4SLinus Torvalds dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); 24081da177e4SLinus Torvalds return 0; 24091da177e4SLinus Torvalds } 24101da177e4SLinus Torvalds 24111da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 24121da177e4SLinus Torvalds { 24131da177e4SLinus Torvalds uint32_t major = 0, minor = 0, *p; 24141da177e4SLinus Torvalds 24151da177e4SLinus Torvalds *rdev = MKDEV(0,0); 24161da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 24171da177e4SLinus Torvalds return -EIO; 24181da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 24191da177e4SLinus Torvalds dev_t tmp; 24201da177e4SLinus Torvalds 24211da177e4SLinus Torvalds READ_BUF(8); 24221da177e4SLinus Torvalds READ32(major); 24231da177e4SLinus Torvalds READ32(minor); 24241da177e4SLinus Torvalds tmp = MKDEV(major, minor); 24251da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 24261da177e4SLinus Torvalds *rdev = tmp; 24271da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 24281da177e4SLinus Torvalds } 24291da177e4SLinus Torvalds dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); 24301da177e4SLinus Torvalds return 0; 24311da177e4SLinus Torvalds } 24321da177e4SLinus Torvalds 24331da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24341da177e4SLinus Torvalds { 24351da177e4SLinus Torvalds uint32_t *p; 24361da177e4SLinus Torvalds int status = 0; 24371da177e4SLinus Torvalds 24381da177e4SLinus Torvalds *res = 0; 24391da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 24401da177e4SLinus Torvalds return -EIO; 24411da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 24421da177e4SLinus Torvalds READ_BUF(8); 24431da177e4SLinus Torvalds READ64(*res); 24441da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 24451da177e4SLinus Torvalds } 24461da177e4SLinus Torvalds dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24471da177e4SLinus Torvalds return status; 24481da177e4SLinus Torvalds } 24491da177e4SLinus Torvalds 24501da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24511da177e4SLinus Torvalds { 24521da177e4SLinus Torvalds uint32_t *p; 24531da177e4SLinus Torvalds int status = 0; 24541da177e4SLinus Torvalds 24551da177e4SLinus Torvalds *res = 0; 24561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 24571da177e4SLinus Torvalds return -EIO; 24581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 24591da177e4SLinus Torvalds READ_BUF(8); 24601da177e4SLinus Torvalds READ64(*res); 24611da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 24621da177e4SLinus Torvalds } 24631da177e4SLinus Torvalds dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24641da177e4SLinus Torvalds return status; 24651da177e4SLinus Torvalds } 24661da177e4SLinus Torvalds 24671da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24681da177e4SLinus Torvalds { 24691da177e4SLinus Torvalds uint32_t *p; 24701da177e4SLinus Torvalds int status = 0; 24711da177e4SLinus Torvalds 24721da177e4SLinus Torvalds *res = 0; 24731da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 24741da177e4SLinus Torvalds return -EIO; 24751da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 24761da177e4SLinus Torvalds READ_BUF(8); 24771da177e4SLinus Torvalds READ64(*res); 24781da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 24791da177e4SLinus Torvalds } 24801da177e4SLinus Torvalds dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24811da177e4SLinus Torvalds return status; 24821da177e4SLinus Torvalds } 24831da177e4SLinus Torvalds 24841da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 24851da177e4SLinus Torvalds { 24861da177e4SLinus Torvalds uint32_t *p; 24871da177e4SLinus Torvalds 24881da177e4SLinus Torvalds *used = 0; 24891da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 24901da177e4SLinus Torvalds return -EIO; 24911da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 24921da177e4SLinus Torvalds READ_BUF(8); 24931da177e4SLinus Torvalds READ64(*used); 24941da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 24951da177e4SLinus Torvalds } 24961da177e4SLinus Torvalds dprintk("%s: space used=%Lu\n", __FUNCTION__, 24971da177e4SLinus Torvalds (unsigned long long)*used); 24981da177e4SLinus Torvalds return 0; 24991da177e4SLinus Torvalds } 25001da177e4SLinus Torvalds 25011da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 25021da177e4SLinus Torvalds { 25031da177e4SLinus Torvalds uint32_t *p; 25041da177e4SLinus Torvalds uint64_t sec; 25051da177e4SLinus Torvalds uint32_t nsec; 25061da177e4SLinus Torvalds 25071da177e4SLinus Torvalds READ_BUF(12); 25081da177e4SLinus Torvalds READ64(sec); 25091da177e4SLinus Torvalds READ32(nsec); 25101da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 25111da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 25121da177e4SLinus Torvalds return 0; 25131da177e4SLinus Torvalds } 25141da177e4SLinus Torvalds 25151da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 25161da177e4SLinus Torvalds { 25171da177e4SLinus Torvalds int status = 0; 25181da177e4SLinus Torvalds 25191da177e4SLinus Torvalds time->tv_sec = 0; 25201da177e4SLinus Torvalds time->tv_nsec = 0; 25211da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 25221da177e4SLinus Torvalds return -EIO; 25231da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 25241da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 25251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 25261da177e4SLinus Torvalds } 25271da177e4SLinus Torvalds dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); 25281da177e4SLinus Torvalds return status; 25291da177e4SLinus Torvalds } 25301da177e4SLinus Torvalds 25311da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 25321da177e4SLinus Torvalds { 25331da177e4SLinus Torvalds int status = 0; 25341da177e4SLinus Torvalds 25351da177e4SLinus Torvalds time->tv_sec = 0; 25361da177e4SLinus Torvalds time->tv_nsec = 0; 25371da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 25381da177e4SLinus Torvalds return -EIO; 25391da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 25401da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 25411da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 25421da177e4SLinus Torvalds } 25431da177e4SLinus Torvalds dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); 25441da177e4SLinus Torvalds return status; 25451da177e4SLinus Torvalds } 25461da177e4SLinus Torvalds 25471da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 25481da177e4SLinus Torvalds { 25491da177e4SLinus Torvalds int status = 0; 25501da177e4SLinus Torvalds 25511da177e4SLinus Torvalds time->tv_sec = 0; 25521da177e4SLinus Torvalds time->tv_nsec = 0; 25531da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 25541da177e4SLinus Torvalds return -EIO; 25551da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 25561da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 25571da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 25581da177e4SLinus Torvalds } 25591da177e4SLinus Torvalds dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); 25601da177e4SLinus Torvalds return status; 25611da177e4SLinus Torvalds } 25621da177e4SLinus Torvalds 25631da177e4SLinus Torvalds static int verify_attr_len(struct xdr_stream *xdr, uint32_t *savep, uint32_t attrlen) 25641da177e4SLinus Torvalds { 25651da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 25661da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 25671da177e4SLinus Torvalds 25681da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 25691da177e4SLinus Torvalds printk(KERN_WARNING "%s: server returned incorrect attribute length: %u %c %u\n", 25701da177e4SLinus Torvalds __FUNCTION__, 25711da177e4SLinus Torvalds attrwords << 2, 25721da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 25731da177e4SLinus Torvalds nwords << 2); 25741da177e4SLinus Torvalds return -EIO; 25751da177e4SLinus Torvalds } 25761da177e4SLinus Torvalds return 0; 25771da177e4SLinus Torvalds } 25781da177e4SLinus Torvalds 25791da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 25801da177e4SLinus Torvalds { 25811da177e4SLinus Torvalds uint32_t *p; 25821da177e4SLinus Torvalds 25831da177e4SLinus Torvalds READ_BUF(20); 25841da177e4SLinus Torvalds READ32(cinfo->atomic); 25851da177e4SLinus Torvalds READ64(cinfo->before); 25861da177e4SLinus Torvalds READ64(cinfo->after); 25871da177e4SLinus Torvalds return 0; 25881da177e4SLinus Torvalds } 25891da177e4SLinus Torvalds 25901da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 25911da177e4SLinus Torvalds { 25921da177e4SLinus Torvalds uint32_t *p; 25931da177e4SLinus Torvalds uint32_t supp, acc; 25941da177e4SLinus Torvalds int status; 25951da177e4SLinus Torvalds 25961da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 25971da177e4SLinus Torvalds if (status) 25981da177e4SLinus Torvalds return status; 25991da177e4SLinus Torvalds READ_BUF(8); 26001da177e4SLinus Torvalds READ32(supp); 26011da177e4SLinus Torvalds READ32(acc); 26021da177e4SLinus Torvalds access->supported = supp; 26031da177e4SLinus Torvalds access->access = acc; 26041da177e4SLinus Torvalds return 0; 26051da177e4SLinus Torvalds } 26061da177e4SLinus Torvalds 26071da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 26081da177e4SLinus Torvalds { 26091da177e4SLinus Torvalds uint32_t *p; 26101da177e4SLinus Torvalds int status; 26111da177e4SLinus Torvalds 26121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 26131da177e4SLinus Torvalds if (status) 26141da177e4SLinus Torvalds return status; 26151da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 26161da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 26171da177e4SLinus Torvalds return 0; 26181da177e4SLinus Torvalds } 26191da177e4SLinus Torvalds 26201da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 26211da177e4SLinus Torvalds { 26221da177e4SLinus Torvalds uint32_t *p; 26231da177e4SLinus Torvalds int status; 26241da177e4SLinus Torvalds 26251da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 26261da177e4SLinus Torvalds if (status) 26271da177e4SLinus Torvalds return status; 26281da177e4SLinus Torvalds READ_BUF(8); 26291da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 26301da177e4SLinus Torvalds return 0; 26311da177e4SLinus Torvalds } 26321da177e4SLinus Torvalds 26331da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 26341da177e4SLinus Torvalds { 26351da177e4SLinus Torvalds uint32_t *p; 26361da177e4SLinus Torvalds uint32_t bmlen; 26371da177e4SLinus Torvalds int status; 26381da177e4SLinus Torvalds 26391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 26401da177e4SLinus Torvalds if (status) 26411da177e4SLinus Torvalds return status; 26421da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 26431da177e4SLinus Torvalds return status; 26441da177e4SLinus Torvalds READ_BUF(4); 26451da177e4SLinus Torvalds READ32(bmlen); 26461da177e4SLinus Torvalds READ_BUF(bmlen << 2); 26471da177e4SLinus Torvalds return 0; 26481da177e4SLinus Torvalds } 26491da177e4SLinus Torvalds 26501da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 26511da177e4SLinus Torvalds { 26521da177e4SLinus Torvalds uint32_t *savep; 26531da177e4SLinus Torvalds uint32_t attrlen, 26541da177e4SLinus Torvalds bitmap[2] = {0}; 26551da177e4SLinus Torvalds int status; 26561da177e4SLinus Torvalds 26571da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 26581da177e4SLinus Torvalds goto xdr_error; 26591da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 26601da177e4SLinus Torvalds goto xdr_error; 26611da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 26621da177e4SLinus Torvalds goto xdr_error; 26631da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 26641da177e4SLinus Torvalds goto xdr_error; 26651da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 26661da177e4SLinus Torvalds goto xdr_error; 26671da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 26681da177e4SLinus Torvalds goto xdr_error; 26691da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 26701da177e4SLinus Torvalds goto xdr_error; 26711da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 26721da177e4SLinus Torvalds xdr_error: 26731da177e4SLinus Torvalds if (status != 0) 26741da177e4SLinus Torvalds printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); 26751da177e4SLinus Torvalds return status; 26761da177e4SLinus Torvalds } 26771da177e4SLinus Torvalds 26781da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 26791da177e4SLinus Torvalds { 26801da177e4SLinus Torvalds uint32_t *savep; 26811da177e4SLinus Torvalds uint32_t attrlen, 26821da177e4SLinus Torvalds bitmap[2] = {0}; 26831da177e4SLinus Torvalds int status; 26841da177e4SLinus Torvalds 26851da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 26861da177e4SLinus Torvalds goto xdr_error; 26871da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 26881da177e4SLinus Torvalds goto xdr_error; 26891da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 26901da177e4SLinus Torvalds goto xdr_error; 26911da177e4SLinus Torvalds 26921da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 26931da177e4SLinus Torvalds goto xdr_error; 26941da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 26951da177e4SLinus Torvalds goto xdr_error; 26961da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 26971da177e4SLinus Torvalds goto xdr_error; 26981da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 26991da177e4SLinus Torvalds goto xdr_error; 27001da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 27011da177e4SLinus Torvalds goto xdr_error; 27021da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 27031da177e4SLinus Torvalds goto xdr_error; 27041da177e4SLinus Torvalds 27051da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 27061da177e4SLinus Torvalds xdr_error: 27071da177e4SLinus Torvalds if (status != 0) 27081da177e4SLinus Torvalds printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); 27091da177e4SLinus Torvalds return status; 27101da177e4SLinus Torvalds } 27111da177e4SLinus Torvalds 27121da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 27131da177e4SLinus Torvalds { 27141da177e4SLinus Torvalds uint32_t *savep; 27151da177e4SLinus Torvalds uint32_t attrlen, 27161da177e4SLinus Torvalds bitmap[2] = {0}; 27171da177e4SLinus Torvalds int status; 27181da177e4SLinus Torvalds 27191da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 27201da177e4SLinus Torvalds goto xdr_error; 27211da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 27221da177e4SLinus Torvalds goto xdr_error; 27231da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 27241da177e4SLinus Torvalds goto xdr_error; 27251da177e4SLinus Torvalds 27261da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 27271da177e4SLinus Torvalds goto xdr_error; 27281da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 27291da177e4SLinus Torvalds goto xdr_error; 27301da177e4SLinus Torvalds 27311da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 27321da177e4SLinus Torvalds xdr_error: 27331da177e4SLinus Torvalds if (status != 0) 27341da177e4SLinus Torvalds printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); 27351da177e4SLinus Torvalds return status; 27361da177e4SLinus Torvalds } 27371da177e4SLinus Torvalds 27381da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 27391da177e4SLinus Torvalds { 27401da177e4SLinus Torvalds uint32_t *savep; 27411da177e4SLinus Torvalds uint32_t attrlen, 27421da177e4SLinus Torvalds bitmap[2] = {0}, 27431da177e4SLinus Torvalds type; 27441da177e4SLinus Torvalds int status, fmode = 0; 27451da177e4SLinus Torvalds 27461da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 27471da177e4SLinus Torvalds goto xdr_error; 27481da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 27491da177e4SLinus Torvalds goto xdr_error; 27501da177e4SLinus Torvalds 27511da177e4SLinus Torvalds fattr->bitmap[0] = bitmap[0]; 27521da177e4SLinus Torvalds fattr->bitmap[1] = bitmap[1]; 27531da177e4SLinus Torvalds 27541da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 27551da177e4SLinus Torvalds goto xdr_error; 27561da177e4SLinus Torvalds 27571da177e4SLinus Torvalds 27581da177e4SLinus Torvalds if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) 27591da177e4SLinus Torvalds goto xdr_error; 27601da177e4SLinus Torvalds fattr->type = nfs_type2fmt[type].nfs2type; 27611da177e4SLinus Torvalds fmode = nfs_type2fmt[type].mode; 27621da177e4SLinus Torvalds 27631da177e4SLinus Torvalds if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) 27641da177e4SLinus Torvalds goto xdr_error; 27651da177e4SLinus Torvalds if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) 27661da177e4SLinus Torvalds goto xdr_error; 27671da177e4SLinus Torvalds if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid_u.nfs4)) != 0) 27681da177e4SLinus Torvalds goto xdr_error; 27691da177e4SLinus Torvalds if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) 27701da177e4SLinus Torvalds goto xdr_error; 27711da177e4SLinus Torvalds if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) 27721da177e4SLinus Torvalds goto xdr_error; 27731da177e4SLinus Torvalds fattr->mode |= fmode; 27741da177e4SLinus Torvalds if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) 27751da177e4SLinus Torvalds goto xdr_error; 27761da177e4SLinus Torvalds if ((status = decode_attr_owner(xdr, bitmap, server->nfs4_state, &fattr->uid)) != 0) 27771da177e4SLinus Torvalds goto xdr_error; 27781da177e4SLinus Torvalds if ((status = decode_attr_group(xdr, bitmap, server->nfs4_state, &fattr->gid)) != 0) 27791da177e4SLinus Torvalds goto xdr_error; 27801da177e4SLinus Torvalds if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) 27811da177e4SLinus Torvalds goto xdr_error; 27821da177e4SLinus Torvalds if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) 27831da177e4SLinus Torvalds goto xdr_error; 27841da177e4SLinus Torvalds if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) 27851da177e4SLinus Torvalds goto xdr_error; 27861da177e4SLinus Torvalds if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) 27871da177e4SLinus Torvalds goto xdr_error; 27881da177e4SLinus Torvalds if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) 27891da177e4SLinus Torvalds goto xdr_error; 27901da177e4SLinus Torvalds if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) { 27911da177e4SLinus Torvalds fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; 27921da177e4SLinus Torvalds fattr->timestamp = jiffies; 27931da177e4SLinus Torvalds } 27941da177e4SLinus Torvalds xdr_error: 27951da177e4SLinus Torvalds if (status != 0) 27961da177e4SLinus Torvalds printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); 27971da177e4SLinus Torvalds return status; 27981da177e4SLinus Torvalds } 27991da177e4SLinus Torvalds 28001da177e4SLinus Torvalds 28011da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 28021da177e4SLinus Torvalds { 28031da177e4SLinus Torvalds uint32_t *savep; 28041da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 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 fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 28151da177e4SLinus Torvalds 28161da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 28171da177e4SLinus Torvalds goto xdr_error; 28181da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 28191da177e4SLinus Torvalds goto xdr_error; 28201da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 28211da177e4SLinus Torvalds goto xdr_error; 28221da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 28231da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 28241da177e4SLinus Torvalds goto xdr_error; 28251da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 28261da177e4SLinus Torvalds 28271da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 28281da177e4SLinus Torvalds xdr_error: 28291da177e4SLinus Torvalds if (status != 0) 28301da177e4SLinus Torvalds printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status); 28311da177e4SLinus Torvalds return status; 28321da177e4SLinus Torvalds } 28331da177e4SLinus Torvalds 28341da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 28351da177e4SLinus Torvalds { 28361da177e4SLinus Torvalds uint32_t *p; 28371da177e4SLinus Torvalds uint32_t len; 28381da177e4SLinus Torvalds int status; 28391da177e4SLinus Torvalds 28401da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 28411da177e4SLinus Torvalds if (status) 28421da177e4SLinus Torvalds return status; 28431da177e4SLinus Torvalds /* Zero handle first to allow comparisons */ 28441da177e4SLinus Torvalds memset(fh, 0, sizeof(*fh)); 28451da177e4SLinus Torvalds 28461da177e4SLinus Torvalds READ_BUF(4); 28471da177e4SLinus Torvalds READ32(len); 28481da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 28491da177e4SLinus Torvalds return -EIO; 28501da177e4SLinus Torvalds fh->size = len; 28511da177e4SLinus Torvalds READ_BUF(len); 28521da177e4SLinus Torvalds COPYMEM(fh->data, len); 28531da177e4SLinus Torvalds return 0; 28541da177e4SLinus Torvalds } 28551da177e4SLinus Torvalds 28561da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 28571da177e4SLinus Torvalds { 28581da177e4SLinus Torvalds int status; 28591da177e4SLinus Torvalds 28601da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 28611da177e4SLinus Torvalds if (status) 28621da177e4SLinus Torvalds return status; 28631da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 28641da177e4SLinus Torvalds } 28651da177e4SLinus Torvalds 28661da177e4SLinus Torvalds /* 28671da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 28681da177e4SLinus Torvalds */ 28691da177e4SLinus Torvalds static int decode_lock_denied (struct xdr_stream *xdr, struct nfs_lock_denied *denied) 28701da177e4SLinus Torvalds { 28711da177e4SLinus Torvalds uint32_t *p; 28721da177e4SLinus Torvalds uint32_t namelen; 28731da177e4SLinus Torvalds 28741da177e4SLinus Torvalds READ_BUF(32); 28751da177e4SLinus Torvalds READ64(denied->offset); 28761da177e4SLinus Torvalds READ64(denied->length); 28771da177e4SLinus Torvalds READ32(denied->type); 28781da177e4SLinus Torvalds READ64(denied->owner.clientid); 28791da177e4SLinus Torvalds READ32(namelen); 28801da177e4SLinus Torvalds READ_BUF(namelen); 28811da177e4SLinus Torvalds if (namelen == 4) 28821da177e4SLinus Torvalds READ32(denied->owner.id); 28831da177e4SLinus Torvalds return -NFS4ERR_DENIED; 28841da177e4SLinus Torvalds } 28851da177e4SLinus Torvalds 28861da177e4SLinus Torvalds static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res) 28871da177e4SLinus Torvalds { 28881da177e4SLinus Torvalds uint32_t *p; 28891da177e4SLinus Torvalds int status; 28901da177e4SLinus Torvalds 28911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 28921da177e4SLinus Torvalds if (status == 0) { 28931da177e4SLinus Torvalds READ_BUF(sizeof(nfs4_stateid)); 28941da177e4SLinus Torvalds COPYMEM(&res->u.stateid, sizeof(res->u.stateid)); 28951da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 28961da177e4SLinus Torvalds return decode_lock_denied(xdr, &res->u.denied); 28971da177e4SLinus Torvalds return status; 28981da177e4SLinus Torvalds } 28991da177e4SLinus Torvalds 29001da177e4SLinus Torvalds static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockres *res) 29011da177e4SLinus Torvalds { 29021da177e4SLinus Torvalds int status; 29031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 29041da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 29051da177e4SLinus Torvalds return decode_lock_denied(xdr, &res->u.denied); 29061da177e4SLinus Torvalds return status; 29071da177e4SLinus Torvalds } 29081da177e4SLinus Torvalds 29091da177e4SLinus Torvalds static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res) 29101da177e4SLinus Torvalds { 29111da177e4SLinus Torvalds uint32_t *p; 29121da177e4SLinus Torvalds int status; 29131da177e4SLinus Torvalds 29141da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 29151da177e4SLinus Torvalds if (status == 0) { 29161da177e4SLinus Torvalds READ_BUF(sizeof(nfs4_stateid)); 29171da177e4SLinus Torvalds COPYMEM(&res->u.stateid, sizeof(res->u.stateid)); 29181da177e4SLinus Torvalds } 29191da177e4SLinus Torvalds return status; 29201da177e4SLinus Torvalds } 29211da177e4SLinus Torvalds 29221da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 29231da177e4SLinus Torvalds { 29241da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 29251da177e4SLinus Torvalds } 29261da177e4SLinus Torvalds 29271da177e4SLinus Torvalds /* This is too sick! */ 29281da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 29291da177e4SLinus Torvalds { 29301da177e4SLinus Torvalds uint32_t *p; 29311da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 29321da177e4SLinus Torvalds 29331da177e4SLinus Torvalds READ_BUF(12); 29341da177e4SLinus Torvalds READ32(limit_type); 29351da177e4SLinus Torvalds switch (limit_type) { 29361da177e4SLinus Torvalds case 1: 29371da177e4SLinus Torvalds READ64(*maxsize); 29381da177e4SLinus Torvalds break; 29391da177e4SLinus Torvalds case 2: 29401da177e4SLinus Torvalds READ32(nblocks); 29411da177e4SLinus Torvalds READ32(blocksize); 29421da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 29431da177e4SLinus Torvalds } 29441da177e4SLinus Torvalds return 0; 29451da177e4SLinus Torvalds } 29461da177e4SLinus Torvalds 29471da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 29481da177e4SLinus Torvalds { 29491da177e4SLinus Torvalds uint32_t *p; 29501da177e4SLinus Torvalds uint32_t delegation_type; 29511da177e4SLinus Torvalds 29521da177e4SLinus Torvalds READ_BUF(4); 29531da177e4SLinus Torvalds READ32(delegation_type); 29541da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 29551da177e4SLinus Torvalds res->delegation_type = 0; 29561da177e4SLinus Torvalds return 0; 29571da177e4SLinus Torvalds } 29581da177e4SLinus Torvalds READ_BUF(20); 29591da177e4SLinus Torvalds COPYMEM(res->delegation.data, sizeof(res->delegation.data)); 29601da177e4SLinus Torvalds READ32(res->do_recall); 29611da177e4SLinus Torvalds switch (delegation_type) { 29621da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 29631da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 29641da177e4SLinus Torvalds break; 29651da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 29661da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 29671da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 29681da177e4SLinus Torvalds return -EIO; 29691da177e4SLinus Torvalds } 29701da177e4SLinus Torvalds return decode_ace(xdr, NULL, res->server->nfs4_state); 29711da177e4SLinus Torvalds } 29721da177e4SLinus Torvalds 29731da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 29741da177e4SLinus Torvalds { 29751da177e4SLinus Torvalds uint32_t *p; 29761da177e4SLinus Torvalds uint32_t bmlen; 29771da177e4SLinus Torvalds int status; 29781da177e4SLinus Torvalds 29791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 29801da177e4SLinus Torvalds if (status) 29811da177e4SLinus Torvalds return status; 29821da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 29831da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 29841da177e4SLinus Torvalds 29851da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 29861da177e4SLinus Torvalds 29871da177e4SLinus Torvalds READ_BUF(8); 29881da177e4SLinus Torvalds READ32(res->rflags); 29891da177e4SLinus Torvalds READ32(bmlen); 29901da177e4SLinus Torvalds if (bmlen > 10) 29911da177e4SLinus Torvalds goto xdr_error; 29921da177e4SLinus Torvalds 29931da177e4SLinus Torvalds READ_BUF(bmlen << 2); 29941da177e4SLinus Torvalds p += bmlen; 29951da177e4SLinus Torvalds return decode_delegation(xdr, res); 29961da177e4SLinus Torvalds xdr_error: 29971da177e4SLinus Torvalds printk(KERN_NOTICE "%s: xdr error!\n", __FUNCTION__); 29981da177e4SLinus Torvalds return -EIO; 29991da177e4SLinus Torvalds } 30001da177e4SLinus Torvalds 30011da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 30021da177e4SLinus Torvalds { 30031da177e4SLinus Torvalds uint32_t *p; 30041da177e4SLinus Torvalds int status; 30051da177e4SLinus Torvalds 30061da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 30071da177e4SLinus Torvalds if (status) 30081da177e4SLinus Torvalds return status; 30091da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 30101da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 30111da177e4SLinus Torvalds return 0; 30121da177e4SLinus Torvalds } 30131da177e4SLinus Torvalds 30141da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 30151da177e4SLinus Torvalds { 30161da177e4SLinus Torvalds uint32_t *p; 30171da177e4SLinus Torvalds int status; 30181da177e4SLinus Torvalds 30191da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 30201da177e4SLinus Torvalds if (status) 30211da177e4SLinus Torvalds return status; 30221da177e4SLinus Torvalds READ_BUF(sizeof(res->stateid.data)); 30231da177e4SLinus Torvalds COPYMEM(res->stateid.data, sizeof(res->stateid.data)); 30241da177e4SLinus Torvalds return 0; 30251da177e4SLinus Torvalds } 30261da177e4SLinus Torvalds 30271da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 30281da177e4SLinus Torvalds { 30291da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 30301da177e4SLinus Torvalds } 30311da177e4SLinus Torvalds 30321da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 30331da177e4SLinus Torvalds { 30341da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 30351da177e4SLinus Torvalds } 30361da177e4SLinus Torvalds 30371da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 30381da177e4SLinus Torvalds { 30391da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 30401da177e4SLinus Torvalds uint32_t *p; 30411da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 30421da177e4SLinus Torvalds int status; 30431da177e4SLinus Torvalds 30441da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 30451da177e4SLinus Torvalds if (status) 30461da177e4SLinus Torvalds return status; 30471da177e4SLinus Torvalds READ_BUF(8); 30481da177e4SLinus Torvalds READ32(eof); 30491da177e4SLinus Torvalds READ32(count); 30501da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 30511da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 30521da177e4SLinus Torvalds if (count > recvd) { 30531da177e4SLinus Torvalds printk(KERN_WARNING "NFS: server cheating in read reply: " 30541da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 30551da177e4SLinus Torvalds count = recvd; 30561da177e4SLinus Torvalds eof = 0; 30571da177e4SLinus Torvalds } 30581da177e4SLinus Torvalds xdr_read_pages(xdr, count); 30591da177e4SLinus Torvalds res->eof = eof; 30601da177e4SLinus Torvalds res->count = count; 30611da177e4SLinus Torvalds return 0; 30621da177e4SLinus Torvalds } 30631da177e4SLinus Torvalds 30641da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 30651da177e4SLinus Torvalds { 30661da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 30671da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 30681da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 30691da177e4SLinus Torvalds unsigned int nr, pglen = rcvbuf->page_len; 30701da177e4SLinus Torvalds uint32_t *end, *entry, *p, *kaddr; 30711da177e4SLinus Torvalds uint32_t len, attrlen; 30721da177e4SLinus Torvalds int hdrlen, recvd, status; 30731da177e4SLinus Torvalds 30741da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 30751da177e4SLinus Torvalds if (status) 30761da177e4SLinus Torvalds return status; 30771da177e4SLinus Torvalds READ_BUF(8); 30781da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 3079eadf4598STrond Myklebust dprintk("%s: verifier = 0x%x%x\n", 3080eadf4598STrond Myklebust __FUNCTION__, 3081eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3082eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3083eadf4598STrond Myklebust 30841da177e4SLinus Torvalds 30851da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 30861da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 30871da177e4SLinus Torvalds if (pglen > recvd) 30881da177e4SLinus Torvalds pglen = recvd; 30891da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 30901da177e4SLinus Torvalds 30911da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 30921da177e4SLinus Torvalds kaddr = p = (uint32_t *) kmap_atomic(page, KM_USER0); 30931da177e4SLinus Torvalds end = (uint32_t *) ((char *)p + pglen + readdir->pgbase); 30941da177e4SLinus Torvalds entry = p; 30951da177e4SLinus Torvalds for (nr = 0; *p++; nr++) { 30961da177e4SLinus Torvalds if (p + 3 > end) 30971da177e4SLinus Torvalds goto short_pkt; 3098eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 30991da177e4SLinus Torvalds p += 2; /* cookie */ 31001da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 31011da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 31021da177e4SLinus Torvalds printk(KERN_WARNING "NFS: giant filename in readdir (len 0x%x)\n", len); 31031da177e4SLinus Torvalds goto err_unmap; 31041da177e4SLinus Torvalds } 3105eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 31061da177e4SLinus Torvalds p += XDR_QUADLEN(len); 31071da177e4SLinus Torvalds if (p + 1 > end) 31081da177e4SLinus Torvalds goto short_pkt; 31091da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 31101da177e4SLinus Torvalds p += len; 31111da177e4SLinus Torvalds if (p + 1 > end) 31121da177e4SLinus Torvalds goto short_pkt; 31131da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 31141da177e4SLinus Torvalds p += attrlen; /* attributes */ 31151da177e4SLinus Torvalds if (p + 2 > end) 31161da177e4SLinus Torvalds goto short_pkt; 31171da177e4SLinus Torvalds entry = p; 31181da177e4SLinus Torvalds } 31191da177e4SLinus Torvalds if (!nr && (entry[0] != 0 || entry[1] == 0)) 31201da177e4SLinus Torvalds goto short_pkt; 31211da177e4SLinus Torvalds out: 31221da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 31231da177e4SLinus Torvalds return 0; 31241da177e4SLinus Torvalds short_pkt: 3125eadf4598STrond Myklebust dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); 31261da177e4SLinus Torvalds entry[0] = entry[1] = 0; 31271da177e4SLinus Torvalds /* truncate listing ? */ 31281da177e4SLinus Torvalds if (!nr) { 31291da177e4SLinus Torvalds printk(KERN_NOTICE "NFS: readdir reply truncated!\n"); 31301da177e4SLinus Torvalds entry[1] = 1; 31311da177e4SLinus Torvalds } 31321da177e4SLinus Torvalds goto out; 31331da177e4SLinus Torvalds err_unmap: 31341da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 31351da177e4SLinus Torvalds return -errno_NFSERR_IO; 31361da177e4SLinus Torvalds } 31371da177e4SLinus Torvalds 31381da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 31391da177e4SLinus Torvalds { 31401da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 31411da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 31421da177e4SLinus Torvalds int hdrlen, len, recvd; 31431da177e4SLinus Torvalds uint32_t *p; 31441da177e4SLinus Torvalds char *kaddr; 31451da177e4SLinus Torvalds int status; 31461da177e4SLinus Torvalds 31471da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 31481da177e4SLinus Torvalds if (status) 31491da177e4SLinus Torvalds return status; 31501da177e4SLinus Torvalds 31511da177e4SLinus Torvalds /* Convert length of symlink */ 31521da177e4SLinus Torvalds READ_BUF(4); 31531da177e4SLinus Torvalds READ32(len); 31541da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 31551da177e4SLinus Torvalds dprintk(KERN_WARNING "nfs: server returned giant symlink!\n"); 31561da177e4SLinus Torvalds return -ENAMETOOLONG; 31571da177e4SLinus Torvalds } 31581da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 31591da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 31601da177e4SLinus Torvalds if (recvd < len) { 31611da177e4SLinus Torvalds printk(KERN_WARNING "NFS: server cheating in readlink reply: " 31621da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 31631da177e4SLinus Torvalds return -EIO; 31641da177e4SLinus Torvalds } 31651da177e4SLinus Torvalds xdr_read_pages(xdr, len); 31661da177e4SLinus Torvalds /* 31671da177e4SLinus Torvalds * The XDR encode routine has set things up so that 31681da177e4SLinus Torvalds * the link text will be copied directly into the 31691da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 31701da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 31711da177e4SLinus Torvalds * null-termination). 31721da177e4SLinus Torvalds */ 31731da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 31741da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 31751da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 31761da177e4SLinus Torvalds return 0; 31771da177e4SLinus Torvalds } 31781da177e4SLinus Torvalds 31791da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 31801da177e4SLinus Torvalds { 31811da177e4SLinus Torvalds int status; 31821da177e4SLinus Torvalds 31831da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 31841da177e4SLinus Torvalds if (status) 31851da177e4SLinus Torvalds goto out; 31861da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 31871da177e4SLinus Torvalds out: 31881da177e4SLinus Torvalds return status; 31891da177e4SLinus Torvalds } 31901da177e4SLinus Torvalds 31911da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 31921da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 31931da177e4SLinus Torvalds { 31941da177e4SLinus Torvalds int status; 31951da177e4SLinus Torvalds 31961da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 31971da177e4SLinus Torvalds if (status) 31981da177e4SLinus Torvalds goto out; 31991da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 32001da177e4SLinus Torvalds goto out; 32011da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 32021da177e4SLinus Torvalds out: 32031da177e4SLinus Torvalds return status; 32041da177e4SLinus Torvalds } 32051da177e4SLinus Torvalds 32061da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 32071da177e4SLinus Torvalds { 32081da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 32091da177e4SLinus Torvalds } 32101da177e4SLinus Torvalds 3211029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3212029d105eSJ. Bruce Fields size_t *acl_len) 3213029d105eSJ. Bruce Fields { 3214029d105eSJ. Bruce Fields uint32_t *savep; 3215029d105eSJ. Bruce Fields uint32_t attrlen, 3216029d105eSJ. Bruce Fields bitmap[2] = {0}; 3217029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 3218029d105eSJ. Bruce Fields int status; 3219029d105eSJ. Bruce Fields 3220029d105eSJ. Bruce Fields *acl_len = 0; 3221029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3222029d105eSJ. Bruce Fields goto out; 3223029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3224029d105eSJ. Bruce Fields goto out; 3225029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3226029d105eSJ. Bruce Fields goto out; 3227029d105eSJ. Bruce Fields 3228029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3229029d105eSJ. Bruce Fields return -EIO; 3230029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3231029d105eSJ. Bruce Fields int hdrlen, recvd; 3232029d105eSJ. Bruce Fields 3233029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 3234029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 3235029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3236029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 3237029d105eSJ. Bruce Fields if (attrlen > recvd) { 3238029d105eSJ. Bruce Fields printk(KERN_WARNING "NFS: server cheating in getattr" 3239029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 3240029d105eSJ. Bruce Fields attrlen, recvd); 3241029d105eSJ. Bruce Fields return -EINVAL; 3242029d105eSJ. Bruce Fields } 3243029d105eSJ. Bruce Fields if (attrlen <= *acl_len) 3244029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 3245029d105eSJ. Bruce Fields *acl_len = attrlen; 3246029d105eSJ. Bruce Fields } 3247029d105eSJ. Bruce Fields 3248029d105eSJ. Bruce Fields out: 3249029d105eSJ. Bruce Fields return status; 3250029d105eSJ. Bruce Fields } 3251029d105eSJ. Bruce Fields 32521da177e4SLinus Torvalds static int 32531da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 32541da177e4SLinus Torvalds { 32551da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 32561da177e4SLinus Torvalds } 32571da177e4SLinus Torvalds 32581da177e4SLinus Torvalds static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) 32591da177e4SLinus Torvalds { 32601da177e4SLinus Torvalds uint32_t *p; 32611da177e4SLinus Torvalds uint32_t bmlen; 32621da177e4SLinus Torvalds int status; 32631da177e4SLinus Torvalds 32641da177e4SLinus Torvalds 32651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 32661da177e4SLinus Torvalds if (status) 32671da177e4SLinus Torvalds return status; 32681da177e4SLinus Torvalds READ_BUF(4); 32691da177e4SLinus Torvalds READ32(bmlen); 32701da177e4SLinus Torvalds READ_BUF(bmlen << 2); 32711da177e4SLinus Torvalds return 0; 32721da177e4SLinus Torvalds } 32731da177e4SLinus Torvalds 32741da177e4SLinus Torvalds static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_client *clp) 32751da177e4SLinus Torvalds { 32761da177e4SLinus Torvalds uint32_t *p; 32771da177e4SLinus Torvalds uint32_t opnum; 32781da177e4SLinus Torvalds int32_t nfserr; 32791da177e4SLinus Torvalds 32801da177e4SLinus Torvalds READ_BUF(8); 32811da177e4SLinus Torvalds READ32(opnum); 32821da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 32831da177e4SLinus Torvalds printk(KERN_NOTICE 32841da177e4SLinus Torvalds "nfs4_decode_setclientid: Server returned operation" 32851da177e4SLinus Torvalds " %d\n", opnum); 32861da177e4SLinus Torvalds return -EIO; 32871da177e4SLinus Torvalds } 32881da177e4SLinus Torvalds READ32(nfserr); 32891da177e4SLinus Torvalds if (nfserr == NFS_OK) { 32901da177e4SLinus Torvalds READ_BUF(8 + sizeof(clp->cl_confirm.data)); 32911da177e4SLinus Torvalds READ64(clp->cl_clientid); 32921da177e4SLinus Torvalds COPYMEM(clp->cl_confirm.data, sizeof(clp->cl_confirm.data)); 32931da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 32941da177e4SLinus Torvalds uint32_t len; 32951da177e4SLinus Torvalds 32961da177e4SLinus Torvalds /* skip netid string */ 32971da177e4SLinus Torvalds READ_BUF(4); 32981da177e4SLinus Torvalds READ32(len); 32991da177e4SLinus Torvalds READ_BUF(len); 33001da177e4SLinus Torvalds 33011da177e4SLinus Torvalds /* skip uaddr string */ 33021da177e4SLinus Torvalds READ_BUF(4); 33031da177e4SLinus Torvalds READ32(len); 33041da177e4SLinus Torvalds READ_BUF(len); 33051da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 33061da177e4SLinus Torvalds } else 33071da177e4SLinus Torvalds return -nfs_stat_to_errno(nfserr); 33081da177e4SLinus Torvalds 33091da177e4SLinus Torvalds return 0; 33101da177e4SLinus Torvalds } 33111da177e4SLinus Torvalds 33121da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 33131da177e4SLinus Torvalds { 33141da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 33151da177e4SLinus Torvalds } 33161da177e4SLinus Torvalds 33171da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 33181da177e4SLinus Torvalds { 33191da177e4SLinus Torvalds uint32_t *p; 33201da177e4SLinus Torvalds int status; 33211da177e4SLinus Torvalds 33221da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 33231da177e4SLinus Torvalds if (status) 33241da177e4SLinus Torvalds return status; 33251da177e4SLinus Torvalds 33261da177e4SLinus Torvalds READ_BUF(16); 33271da177e4SLinus Torvalds READ32(res->count); 33281da177e4SLinus Torvalds READ32(res->verf->committed); 33291da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 33301da177e4SLinus Torvalds return 0; 33311da177e4SLinus Torvalds } 33321da177e4SLinus Torvalds 33331da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 33341da177e4SLinus Torvalds { 33351da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 33361da177e4SLinus Torvalds } 33371da177e4SLinus Torvalds 33381da177e4SLinus Torvalds /* 33391da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 33401da177e4SLinus Torvalds */ 33411da177e4SLinus Torvalds static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res) 33421da177e4SLinus Torvalds { 33431da177e4SLinus Torvalds struct xdr_stream xdr; 33441da177e4SLinus Torvalds struct compound_hdr hdr; 33451da177e4SLinus Torvalds int status; 33461da177e4SLinus Torvalds 33471da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 33481da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 33491da177e4SLinus Torvalds if (status) 33501da177e4SLinus Torvalds goto out; 33511da177e4SLinus Torvalds status = decode_putfh(&xdr); 33521da177e4SLinus Torvalds if (status) 33531da177e4SLinus Torvalds goto out; 33541da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 33551da177e4SLinus Torvalds out: 33561da177e4SLinus Torvalds return status; 33571da177e4SLinus Torvalds } 33581da177e4SLinus Torvalds 33591da177e4SLinus Torvalds /* 33601da177e4SLinus Torvalds * END OF "GENERIC" DECODE ROUTINES. 33611da177e4SLinus Torvalds */ 33621da177e4SLinus Torvalds 33631da177e4SLinus Torvalds /* 33641da177e4SLinus Torvalds * Decode ACCESS response 33651da177e4SLinus Torvalds */ 33661da177e4SLinus Torvalds static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_accessres *res) 33671da177e4SLinus Torvalds { 33681da177e4SLinus Torvalds struct xdr_stream xdr; 33691da177e4SLinus Torvalds struct compound_hdr hdr; 33701da177e4SLinus Torvalds int status; 33711da177e4SLinus Torvalds 33721da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 33731da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 33741da177e4SLinus Torvalds goto out; 33751da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) == 0) 33761da177e4SLinus Torvalds status = decode_access(&xdr, res); 33771da177e4SLinus Torvalds out: 33781da177e4SLinus Torvalds return status; 33791da177e4SLinus Torvalds } 33801da177e4SLinus Torvalds 33811da177e4SLinus Torvalds /* 33821da177e4SLinus Torvalds * Decode LOOKUP response 33831da177e4SLinus Torvalds */ 33841da177e4SLinus Torvalds static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res) 33851da177e4SLinus Torvalds { 33861da177e4SLinus Torvalds struct xdr_stream xdr; 33871da177e4SLinus Torvalds struct compound_hdr hdr; 33881da177e4SLinus Torvalds int status; 33891da177e4SLinus Torvalds 33901da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 33911da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 33921da177e4SLinus Torvalds goto out; 33931da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 33941da177e4SLinus Torvalds goto out; 33951da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 33961da177e4SLinus Torvalds goto out; 33971da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 33981da177e4SLinus Torvalds goto out; 33991da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 34001da177e4SLinus Torvalds out: 34011da177e4SLinus Torvalds return status; 34021da177e4SLinus Torvalds } 34031da177e4SLinus Torvalds 34041da177e4SLinus Torvalds /* 34051da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 34061da177e4SLinus Torvalds */ 34071da177e4SLinus Torvalds static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_lookup_res *res) 34081da177e4SLinus Torvalds { 34091da177e4SLinus Torvalds struct xdr_stream xdr; 34101da177e4SLinus Torvalds struct compound_hdr hdr; 34111da177e4SLinus Torvalds int status; 34121da177e4SLinus Torvalds 34131da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 34141da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 34151da177e4SLinus Torvalds goto out; 34161da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 34171da177e4SLinus Torvalds goto out; 34181da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 34191da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 34201da177e4SLinus Torvalds out: 34211da177e4SLinus Torvalds return status; 34221da177e4SLinus Torvalds } 34231da177e4SLinus Torvalds 34241da177e4SLinus Torvalds /* 34251da177e4SLinus Torvalds * Decode REMOVE response 34261da177e4SLinus Torvalds */ 34271da177e4SLinus Torvalds static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_change_info *cinfo) 34281da177e4SLinus Torvalds { 34291da177e4SLinus Torvalds struct xdr_stream xdr; 34301da177e4SLinus Torvalds struct compound_hdr hdr; 34311da177e4SLinus Torvalds int status; 34321da177e4SLinus Torvalds 34331da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 34341da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 34351da177e4SLinus Torvalds goto out; 34361da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) == 0) 34371da177e4SLinus Torvalds status = decode_remove(&xdr, cinfo); 34381da177e4SLinus Torvalds out: 34391da177e4SLinus Torvalds return status; 34401da177e4SLinus Torvalds } 34411da177e4SLinus Torvalds 34421da177e4SLinus Torvalds /* 34431da177e4SLinus Torvalds * Decode RENAME response 34441da177e4SLinus Torvalds */ 34451da177e4SLinus Torvalds static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_rename_res *res) 34461da177e4SLinus Torvalds { 34471da177e4SLinus Torvalds struct xdr_stream xdr; 34481da177e4SLinus Torvalds struct compound_hdr hdr; 34491da177e4SLinus Torvalds int status; 34501da177e4SLinus Torvalds 34511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 34521da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 34531da177e4SLinus Torvalds goto out; 34541da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 34551da177e4SLinus Torvalds goto out; 34561da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 34571da177e4SLinus Torvalds goto out; 34581da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 34591da177e4SLinus Torvalds goto out; 34601da177e4SLinus Torvalds status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo); 34611da177e4SLinus Torvalds out: 34621da177e4SLinus Torvalds return status; 34631da177e4SLinus Torvalds } 34641da177e4SLinus Torvalds 34651da177e4SLinus Torvalds /* 34661da177e4SLinus Torvalds * Decode LINK response 34671da177e4SLinus Torvalds */ 34681da177e4SLinus Torvalds static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_change_info *cinfo) 34691da177e4SLinus Torvalds { 34701da177e4SLinus Torvalds struct xdr_stream xdr; 34711da177e4SLinus Torvalds struct compound_hdr hdr; 34721da177e4SLinus Torvalds int status; 34731da177e4SLinus Torvalds 34741da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 34751da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 34761da177e4SLinus Torvalds goto out; 34771da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 34781da177e4SLinus Torvalds goto out; 34791da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 34801da177e4SLinus Torvalds goto out; 34811da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 34821da177e4SLinus Torvalds goto out; 34831da177e4SLinus Torvalds status = decode_link(&xdr, cinfo); 34841da177e4SLinus Torvalds out: 34851da177e4SLinus Torvalds return status; 34861da177e4SLinus Torvalds } 34871da177e4SLinus Torvalds 34881da177e4SLinus Torvalds /* 34891da177e4SLinus Torvalds * Decode CREATE response 34901da177e4SLinus Torvalds */ 34911da177e4SLinus Torvalds static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res) 34921da177e4SLinus Torvalds { 34931da177e4SLinus Torvalds struct xdr_stream xdr; 34941da177e4SLinus Torvalds struct compound_hdr hdr; 34951da177e4SLinus Torvalds int status; 34961da177e4SLinus Torvalds 34971da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 34981da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 34991da177e4SLinus Torvalds goto out; 35001da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 35011da177e4SLinus Torvalds goto out; 35021da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 35031da177e4SLinus Torvalds goto out; 35041da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 35051da177e4SLinus Torvalds goto out; 35061da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 35071da177e4SLinus Torvalds if (status == NFS4ERR_DELAY) 35081da177e4SLinus Torvalds status = 0; 35091da177e4SLinus Torvalds out: 35101da177e4SLinus Torvalds return status; 35111da177e4SLinus Torvalds } 35121da177e4SLinus Torvalds 35131da177e4SLinus Torvalds /* 35141da177e4SLinus Torvalds * Decode SYMLINK response 35151da177e4SLinus Torvalds */ 35161da177e4SLinus Torvalds static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_create_res *res) 35171da177e4SLinus Torvalds { 35181da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 35191da177e4SLinus Torvalds } 35201da177e4SLinus Torvalds 35211da177e4SLinus Torvalds /* 35221da177e4SLinus Torvalds * Decode GETATTR response 35231da177e4SLinus Torvalds */ 35241da177e4SLinus Torvalds static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_getattr_res *res) 35251da177e4SLinus Torvalds { 35261da177e4SLinus Torvalds struct xdr_stream xdr; 35271da177e4SLinus Torvalds struct compound_hdr hdr; 35281da177e4SLinus Torvalds int status; 35291da177e4SLinus Torvalds 35301da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 35311da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 35321da177e4SLinus Torvalds if (status) 35331da177e4SLinus Torvalds goto out; 35341da177e4SLinus Torvalds status = decode_putfh(&xdr); 35351da177e4SLinus Torvalds if (status) 35361da177e4SLinus Torvalds goto out; 35371da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 35381da177e4SLinus Torvalds out: 35391da177e4SLinus Torvalds return status; 35401da177e4SLinus Torvalds 35411da177e4SLinus Torvalds } 35421da177e4SLinus Torvalds 354323ec6965SJ. Bruce Fields /* 354423ec6965SJ. Bruce Fields * Encode an SETACL request 354523ec6965SJ. Bruce Fields */ 354623ec6965SJ. Bruce Fields static int 354723ec6965SJ. Bruce Fields nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args) 354823ec6965SJ. Bruce Fields { 354923ec6965SJ. Bruce Fields struct xdr_stream xdr; 355023ec6965SJ. Bruce Fields struct compound_hdr hdr = { 355123ec6965SJ. Bruce Fields .nops = 2, 355223ec6965SJ. Bruce Fields }; 355323ec6965SJ. Bruce Fields int status; 355423ec6965SJ. Bruce Fields 355523ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 355623ec6965SJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 355723ec6965SJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 355823ec6965SJ. Bruce Fields if (status) 355923ec6965SJ. Bruce Fields goto out; 356023ec6965SJ. Bruce Fields status = encode_setacl(&xdr, args); 356123ec6965SJ. Bruce Fields out: 356223ec6965SJ. Bruce Fields return status; 356323ec6965SJ. Bruce Fields } 356423ec6965SJ. Bruce Fields /* 356523ec6965SJ. Bruce Fields * Decode SETACL response 356623ec6965SJ. Bruce Fields */ 356723ec6965SJ. Bruce Fields static int 356823ec6965SJ. Bruce Fields nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res) 356923ec6965SJ. Bruce Fields { 357023ec6965SJ. Bruce Fields struct xdr_stream xdr; 357123ec6965SJ. Bruce Fields struct compound_hdr hdr; 357223ec6965SJ. Bruce Fields int status; 357323ec6965SJ. Bruce Fields 357423ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 357523ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 357623ec6965SJ. Bruce Fields if (status) 357723ec6965SJ. Bruce Fields goto out; 357823ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 357923ec6965SJ. Bruce Fields if (status) 358023ec6965SJ. Bruce Fields goto out; 358123ec6965SJ. Bruce Fields status = decode_setattr(&xdr, res); 358223ec6965SJ. Bruce Fields out: 358323ec6965SJ. Bruce Fields return status; 358423ec6965SJ. Bruce Fields } 35851da177e4SLinus Torvalds 35861da177e4SLinus Torvalds /* 3587029d105eSJ. Bruce Fields * Decode GETACL response 3588029d105eSJ. Bruce Fields */ 3589029d105eSJ. Bruce Fields static int 3590029d105eSJ. Bruce Fields nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, uint32_t *p, size_t *acl_len) 3591029d105eSJ. Bruce Fields { 3592029d105eSJ. Bruce Fields struct xdr_stream xdr; 3593029d105eSJ. Bruce Fields struct compound_hdr hdr; 3594029d105eSJ. Bruce Fields int status; 3595029d105eSJ. Bruce Fields 3596029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3597029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 3598029d105eSJ. Bruce Fields if (status) 3599029d105eSJ. Bruce Fields goto out; 3600029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 3601029d105eSJ. Bruce Fields if (status) 3602029d105eSJ. Bruce Fields goto out; 3603029d105eSJ. Bruce Fields status = decode_getacl(&xdr, rqstp, acl_len); 3604029d105eSJ. Bruce Fields 3605029d105eSJ. Bruce Fields out: 3606029d105eSJ. Bruce Fields return status; 3607029d105eSJ. Bruce Fields } 3608029d105eSJ. Bruce Fields 3609029d105eSJ. Bruce Fields /* 36101da177e4SLinus Torvalds * Decode CLOSE response 36111da177e4SLinus Torvalds */ 36121da177e4SLinus Torvalds static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_closeres *res) 36131da177e4SLinus Torvalds { 36141da177e4SLinus Torvalds struct xdr_stream xdr; 36151da177e4SLinus Torvalds struct compound_hdr hdr; 36161da177e4SLinus Torvalds int status; 36171da177e4SLinus Torvalds 36181da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36191da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 36201da177e4SLinus Torvalds if (status) 36211da177e4SLinus Torvalds goto out; 36221da177e4SLinus Torvalds status = decode_putfh(&xdr); 36231da177e4SLinus Torvalds if (status) 36241da177e4SLinus Torvalds goto out; 36251da177e4SLinus Torvalds status = decode_close(&xdr, res); 36261da177e4SLinus Torvalds out: 36271da177e4SLinus Torvalds return status; 36281da177e4SLinus Torvalds } 36291da177e4SLinus Torvalds 36301da177e4SLinus Torvalds /* 36311da177e4SLinus Torvalds * Decode OPEN response 36321da177e4SLinus Torvalds */ 36331da177e4SLinus Torvalds static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res) 36341da177e4SLinus Torvalds { 36351da177e4SLinus Torvalds struct xdr_stream xdr; 36361da177e4SLinus Torvalds struct compound_hdr hdr; 36371da177e4SLinus Torvalds int status; 36381da177e4SLinus Torvalds 36391da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36401da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 36411da177e4SLinus Torvalds if (status) 36421da177e4SLinus Torvalds goto out; 36431da177e4SLinus Torvalds status = decode_putfh(&xdr); 36441da177e4SLinus Torvalds if (status) 36451da177e4SLinus Torvalds goto out; 36461da177e4SLinus Torvalds status = decode_open(&xdr, res); 36471da177e4SLinus Torvalds if (status) 36481da177e4SLinus Torvalds goto out; 36491da177e4SLinus Torvalds status = decode_getfh(&xdr, &res->fh); 36501da177e4SLinus Torvalds if (status) 36511da177e4SLinus Torvalds goto out; 36521da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->f_attr, res->server); 36531da177e4SLinus Torvalds if (status == NFS4ERR_DELAY) 36541da177e4SLinus Torvalds status = 0; 36551da177e4SLinus Torvalds out: 36561da177e4SLinus Torvalds return status; 36571da177e4SLinus Torvalds } 36581da177e4SLinus Torvalds 36591da177e4SLinus Torvalds /* 36601da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 36611da177e4SLinus Torvalds */ 36621da177e4SLinus Torvalds static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_open_confirmres *res) 36631da177e4SLinus Torvalds { 36641da177e4SLinus Torvalds struct xdr_stream xdr; 36651da177e4SLinus Torvalds struct compound_hdr hdr; 36661da177e4SLinus Torvalds int status; 36671da177e4SLinus Torvalds 36681da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36691da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 36701da177e4SLinus Torvalds if (status) 36711da177e4SLinus Torvalds goto out; 36721da177e4SLinus Torvalds status = decode_putfh(&xdr); 36731da177e4SLinus Torvalds if (status) 36741da177e4SLinus Torvalds goto out; 36751da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 36761da177e4SLinus Torvalds out: 36771da177e4SLinus Torvalds return status; 36781da177e4SLinus Torvalds } 36791da177e4SLinus Torvalds 36801da177e4SLinus Torvalds /* 36811da177e4SLinus Torvalds * Decode OPEN response 36821da177e4SLinus Torvalds */ 36831da177e4SLinus Torvalds static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_openres *res) 36841da177e4SLinus Torvalds { 36851da177e4SLinus Torvalds struct xdr_stream xdr; 36861da177e4SLinus Torvalds struct compound_hdr hdr; 36871da177e4SLinus Torvalds int status; 36881da177e4SLinus Torvalds 36891da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36901da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 36911da177e4SLinus Torvalds if (status) 36921da177e4SLinus Torvalds goto out; 36931da177e4SLinus Torvalds status = decode_putfh(&xdr); 36941da177e4SLinus Torvalds if (status) 36951da177e4SLinus Torvalds goto out; 36961da177e4SLinus Torvalds status = decode_open(&xdr, res); 36971da177e4SLinus Torvalds out: 36981da177e4SLinus Torvalds return status; 36991da177e4SLinus Torvalds } 37001da177e4SLinus Torvalds 37011da177e4SLinus Torvalds /* 37021da177e4SLinus Torvalds * Decode SETATTR response 37031da177e4SLinus Torvalds */ 37041da177e4SLinus Torvalds static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_setattrres *res) 37051da177e4SLinus Torvalds { 37061da177e4SLinus Torvalds struct xdr_stream xdr; 37071da177e4SLinus Torvalds struct compound_hdr hdr; 37081da177e4SLinus Torvalds int status; 37091da177e4SLinus Torvalds 37101da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37111da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37121da177e4SLinus Torvalds if (status) 37131da177e4SLinus Torvalds goto out; 37141da177e4SLinus Torvalds status = decode_putfh(&xdr); 37151da177e4SLinus Torvalds if (status) 37161da177e4SLinus Torvalds goto out; 37171da177e4SLinus Torvalds status = decode_setattr(&xdr, res); 37181da177e4SLinus Torvalds if (status) 37191da177e4SLinus Torvalds goto out; 37201da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 37211da177e4SLinus Torvalds if (status == NFS4ERR_DELAY) 37221da177e4SLinus Torvalds status = 0; 37231da177e4SLinus Torvalds out: 37241da177e4SLinus Torvalds return status; 37251da177e4SLinus Torvalds } 37261da177e4SLinus Torvalds 37271da177e4SLinus Torvalds /* 37281da177e4SLinus Torvalds * Decode LOCK response 37291da177e4SLinus Torvalds */ 37301da177e4SLinus Torvalds static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res) 37311da177e4SLinus Torvalds { 37321da177e4SLinus Torvalds struct xdr_stream xdr; 37331da177e4SLinus Torvalds struct compound_hdr hdr; 37341da177e4SLinus Torvalds int status; 37351da177e4SLinus Torvalds 37361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37371da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37381da177e4SLinus Torvalds if (status) 37391da177e4SLinus Torvalds goto out; 37401da177e4SLinus Torvalds status = decode_putfh(&xdr); 37411da177e4SLinus Torvalds if (status) 37421da177e4SLinus Torvalds goto out; 37431da177e4SLinus Torvalds status = decode_lock(&xdr, res); 37441da177e4SLinus Torvalds out: 37451da177e4SLinus Torvalds return status; 37461da177e4SLinus Torvalds } 37471da177e4SLinus Torvalds 37481da177e4SLinus Torvalds /* 37491da177e4SLinus Torvalds * Decode LOCKT response 37501da177e4SLinus Torvalds */ 37511da177e4SLinus Torvalds static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res) 37521da177e4SLinus Torvalds { 37531da177e4SLinus Torvalds struct xdr_stream xdr; 37541da177e4SLinus Torvalds struct compound_hdr hdr; 37551da177e4SLinus Torvalds int status; 37561da177e4SLinus Torvalds 37571da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37581da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37591da177e4SLinus Torvalds if (status) 37601da177e4SLinus Torvalds goto out; 37611da177e4SLinus Torvalds status = decode_putfh(&xdr); 37621da177e4SLinus Torvalds if (status) 37631da177e4SLinus Torvalds goto out; 37641da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 37651da177e4SLinus Torvalds out: 37661da177e4SLinus Torvalds return status; 37671da177e4SLinus Torvalds } 37681da177e4SLinus Torvalds 37691da177e4SLinus Torvalds /* 37701da177e4SLinus Torvalds * Decode LOCKU response 37711da177e4SLinus Torvalds */ 37721da177e4SLinus Torvalds static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_lockres *res) 37731da177e4SLinus Torvalds { 37741da177e4SLinus Torvalds struct xdr_stream xdr; 37751da177e4SLinus Torvalds struct compound_hdr hdr; 37761da177e4SLinus Torvalds int status; 37771da177e4SLinus Torvalds 37781da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37791da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37801da177e4SLinus Torvalds if (status) 37811da177e4SLinus Torvalds goto out; 37821da177e4SLinus Torvalds status = decode_putfh(&xdr); 37831da177e4SLinus Torvalds if (status) 37841da177e4SLinus Torvalds goto out; 37851da177e4SLinus Torvalds status = decode_locku(&xdr, res); 37861da177e4SLinus Torvalds out: 37871da177e4SLinus Torvalds return status; 37881da177e4SLinus Torvalds } 37891da177e4SLinus Torvalds 37901da177e4SLinus Torvalds /* 37911da177e4SLinus Torvalds * Decode READLINK response 37921da177e4SLinus Torvalds */ 37931da177e4SLinus Torvalds static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, uint32_t *p, void *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_readlink(&xdr, rqstp); 38071da177e4SLinus Torvalds out: 38081da177e4SLinus Torvalds return status; 38091da177e4SLinus Torvalds } 38101da177e4SLinus Torvalds 38111da177e4SLinus Torvalds /* 38121da177e4SLinus Torvalds * Decode READDIR response 38131da177e4SLinus Torvalds */ 38141da177e4SLinus Torvalds static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_readdir_res *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_readdir(&xdr, rqstp, res); 38281da177e4SLinus Torvalds out: 38291da177e4SLinus Torvalds return status; 38301da177e4SLinus Torvalds } 38311da177e4SLinus Torvalds 38321da177e4SLinus Torvalds /* 38331da177e4SLinus Torvalds * Decode Read response 38341da177e4SLinus Torvalds */ 38351da177e4SLinus Torvalds static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_readres *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_read(&xdr, rqstp, res); 38491da177e4SLinus Torvalds if (!status) 38501da177e4SLinus Torvalds status = res->count; 38511da177e4SLinus Torvalds out: 38521da177e4SLinus Torvalds return status; 38531da177e4SLinus Torvalds } 38541da177e4SLinus Torvalds 38551da177e4SLinus Torvalds /* 38561da177e4SLinus Torvalds * Decode WRITE response 38571da177e4SLinus Torvalds */ 38581da177e4SLinus Torvalds static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res) 38591da177e4SLinus Torvalds { 38601da177e4SLinus Torvalds struct xdr_stream xdr; 38611da177e4SLinus Torvalds struct compound_hdr hdr; 38621da177e4SLinus Torvalds int status; 38631da177e4SLinus Torvalds 38641da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38651da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 38661da177e4SLinus Torvalds if (status) 38671da177e4SLinus Torvalds goto out; 38681da177e4SLinus Torvalds status = decode_putfh(&xdr); 38691da177e4SLinus Torvalds if (status) 38701da177e4SLinus Torvalds goto out; 38711da177e4SLinus Torvalds status = decode_write(&xdr, res); 38721da177e4SLinus Torvalds if (!status) 38731da177e4SLinus Torvalds status = res->count; 38741da177e4SLinus Torvalds out: 38751da177e4SLinus Torvalds return status; 38761da177e4SLinus Torvalds } 38771da177e4SLinus Torvalds 38781da177e4SLinus Torvalds /* 38791da177e4SLinus Torvalds * Decode COMMIT response 38801da177e4SLinus Torvalds */ 38811da177e4SLinus Torvalds static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_writeres *res) 38821da177e4SLinus Torvalds { 38831da177e4SLinus Torvalds struct xdr_stream xdr; 38841da177e4SLinus Torvalds struct compound_hdr hdr; 38851da177e4SLinus Torvalds int status; 38861da177e4SLinus Torvalds 38871da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38881da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 38891da177e4SLinus Torvalds if (status) 38901da177e4SLinus Torvalds goto out; 38911da177e4SLinus Torvalds status = decode_putfh(&xdr); 38921da177e4SLinus Torvalds if (status) 38931da177e4SLinus Torvalds goto out; 38941da177e4SLinus Torvalds status = decode_commit(&xdr, res); 38951da177e4SLinus Torvalds out: 38961da177e4SLinus Torvalds return status; 38971da177e4SLinus Torvalds } 38981da177e4SLinus Torvalds 38991da177e4SLinus Torvalds /* 39001da177e4SLinus Torvalds * FSINFO request 39011da177e4SLinus Torvalds */ 39021da177e4SLinus Torvalds static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo) 39031da177e4SLinus Torvalds { 39041da177e4SLinus Torvalds struct xdr_stream xdr; 39051da177e4SLinus Torvalds struct compound_hdr hdr; 39061da177e4SLinus Torvalds int status; 39071da177e4SLinus Torvalds 39081da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 39091da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39101da177e4SLinus Torvalds if (!status) 39111da177e4SLinus Torvalds status = decode_putfh(&xdr); 39121da177e4SLinus Torvalds if (!status) 39131da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 39141da177e4SLinus Torvalds if (!status) 39151da177e4SLinus Torvalds status = -nfs_stat_to_errno(hdr.status); 39161da177e4SLinus Torvalds return status; 39171da177e4SLinus Torvalds } 39181da177e4SLinus Torvalds 39191da177e4SLinus Torvalds /* 39201da177e4SLinus Torvalds * PATHCONF request 39211da177e4SLinus Torvalds */ 39221da177e4SLinus Torvalds static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, uint32_t *p, struct nfs_pathconf *pathconf) 39231da177e4SLinus Torvalds { 39241da177e4SLinus Torvalds struct xdr_stream xdr; 39251da177e4SLinus Torvalds struct compound_hdr hdr; 39261da177e4SLinus Torvalds int status; 39271da177e4SLinus Torvalds 39281da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 39291da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39301da177e4SLinus Torvalds if (!status) 39311da177e4SLinus Torvalds status = decode_putfh(&xdr); 39321da177e4SLinus Torvalds if (!status) 39331da177e4SLinus Torvalds status = decode_pathconf(&xdr, pathconf); 39341da177e4SLinus Torvalds return status; 39351da177e4SLinus Torvalds } 39361da177e4SLinus Torvalds 39371da177e4SLinus Torvalds /* 39381da177e4SLinus Torvalds * STATFS request 39391da177e4SLinus Torvalds */ 39401da177e4SLinus Torvalds static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, uint32_t *p, struct nfs_fsstat *fsstat) 39411da177e4SLinus Torvalds { 39421da177e4SLinus Torvalds struct xdr_stream xdr; 39431da177e4SLinus Torvalds struct compound_hdr hdr; 39441da177e4SLinus Torvalds int status; 39451da177e4SLinus Torvalds 39461da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 39471da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39481da177e4SLinus Torvalds if (!status) 39491da177e4SLinus Torvalds status = decode_putfh(&xdr); 39501da177e4SLinus Torvalds if (!status) 39511da177e4SLinus Torvalds status = decode_statfs(&xdr, fsstat); 39521da177e4SLinus Torvalds return status; 39531da177e4SLinus Torvalds } 39541da177e4SLinus Torvalds 39551da177e4SLinus Torvalds /* 39561da177e4SLinus Torvalds * GETATTR_BITMAP request 39571da177e4SLinus Torvalds */ 39581da177e4SLinus Torvalds static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, uint32_t *p, struct nfs4_server_caps_res *res) 39591da177e4SLinus Torvalds { 39601da177e4SLinus Torvalds struct xdr_stream xdr; 39611da177e4SLinus Torvalds struct compound_hdr hdr; 39621da177e4SLinus Torvalds int status; 39631da177e4SLinus Torvalds 39641da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 39651da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 39661da177e4SLinus Torvalds goto out; 39671da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39681da177e4SLinus Torvalds goto out; 39691da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 39701da177e4SLinus Torvalds out: 39711da177e4SLinus Torvalds return status; 39721da177e4SLinus Torvalds } 39731da177e4SLinus Torvalds 39741da177e4SLinus Torvalds /* 39751da177e4SLinus Torvalds * Decode RENEW response 39761da177e4SLinus Torvalds */ 39771da177e4SLinus Torvalds static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, uint32_t *p, void *dummy) 39781da177e4SLinus Torvalds { 39791da177e4SLinus Torvalds struct xdr_stream xdr; 39801da177e4SLinus Torvalds struct compound_hdr hdr; 39811da177e4SLinus Torvalds int status; 39821da177e4SLinus Torvalds 39831da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39841da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39851da177e4SLinus Torvalds if (!status) 39861da177e4SLinus Torvalds status = decode_renew(&xdr); 39871da177e4SLinus Torvalds return status; 39881da177e4SLinus Torvalds } 39891da177e4SLinus Torvalds 39901da177e4SLinus Torvalds /* 39911da177e4SLinus Torvalds * a SETCLIENTID request 39921da177e4SLinus Torvalds */ 39931da177e4SLinus Torvalds static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, uint32_t *p, 39941da177e4SLinus Torvalds struct nfs4_client *clp) 39951da177e4SLinus Torvalds { 39961da177e4SLinus Torvalds struct xdr_stream xdr; 39971da177e4SLinus Torvalds struct compound_hdr hdr; 39981da177e4SLinus Torvalds int status; 39991da177e4SLinus Torvalds 40001da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 40011da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40021da177e4SLinus Torvalds if (!status) 40031da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 40041da177e4SLinus Torvalds if (!status) 40051da177e4SLinus Torvalds status = -nfs_stat_to_errno(hdr.status); 40061da177e4SLinus Torvalds return status; 40071da177e4SLinus Torvalds } 40081da177e4SLinus Torvalds 40091da177e4SLinus Torvalds /* 40101da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 40111da177e4SLinus Torvalds */ 40121da177e4SLinus Torvalds static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, struct nfs_fsinfo *fsinfo) 40131da177e4SLinus Torvalds { 40141da177e4SLinus Torvalds struct xdr_stream xdr; 40151da177e4SLinus Torvalds struct compound_hdr hdr; 40161da177e4SLinus Torvalds int status; 40171da177e4SLinus Torvalds 40181da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 40191da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40201da177e4SLinus Torvalds if (!status) 40211da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 40221da177e4SLinus Torvalds if (!status) 40231da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 40241da177e4SLinus Torvalds if (!status) 40251da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 40261da177e4SLinus Torvalds if (!status) 40271da177e4SLinus Torvalds status = -nfs_stat_to_errno(hdr.status); 40281da177e4SLinus Torvalds return status; 40291da177e4SLinus Torvalds } 40301da177e4SLinus Torvalds 40311da177e4SLinus Torvalds /* 40321da177e4SLinus Torvalds * DELEGRETURN request 40331da177e4SLinus Torvalds */ 40341da177e4SLinus Torvalds static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy) 40351da177e4SLinus Torvalds { 40361da177e4SLinus Torvalds struct xdr_stream xdr; 40371da177e4SLinus Torvalds struct compound_hdr hdr; 40381da177e4SLinus Torvalds int status; 40391da177e4SLinus Torvalds 40401da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40411da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40421da177e4SLinus Torvalds if (status == 0) { 40431da177e4SLinus Torvalds status = decode_putfh(&xdr); 40441da177e4SLinus Torvalds if (status == 0) 40451da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 40461da177e4SLinus Torvalds } 40471da177e4SLinus Torvalds return status; 40481da177e4SLinus Torvalds } 40491da177e4SLinus Torvalds 40501da177e4SLinus Torvalds uint32_t *nfs4_decode_dirent(uint32_t *p, struct nfs_entry *entry, int plus) 40511da177e4SLinus Torvalds { 40521da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 40531da177e4SLinus Torvalds uint32_t len; 40541da177e4SLinus Torvalds 40551da177e4SLinus Torvalds if (!*p++) { 40561da177e4SLinus Torvalds if (!*p) 40571da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 40581da177e4SLinus Torvalds entry->eof = 1; 40591da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 40601da177e4SLinus Torvalds } 40611da177e4SLinus Torvalds 40621da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 40631da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 40641da177e4SLinus Torvalds entry->len = ntohl(*p++); 40651da177e4SLinus Torvalds entry->name = (const char *) p; 40661da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 40671da177e4SLinus Torvalds 40681da177e4SLinus Torvalds /* 40691da177e4SLinus Torvalds * In case the server doesn't return an inode number, 40701da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 40711da177e4SLinus Torvalds * since glibc seems to choke on it...) 40721da177e4SLinus Torvalds */ 40731da177e4SLinus Torvalds entry->ino = 1; 40741da177e4SLinus Torvalds 40751da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 40761da177e4SLinus Torvalds if (len-- > 0) { 40771da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 40781da177e4SLinus Torvalds if (len-- > 0) { 40791da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 40801da177e4SLinus Torvalds p += len; 40811da177e4SLinus Torvalds } 40821da177e4SLinus Torvalds } 40831da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 40841da177e4SLinus Torvalds if (len > 0) { 408597d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 408697d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 408797d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 408897d312d0SManoj Naik p++; 408997d312d0SManoj Naik len--; 409097d312d0SManoj Naik } 40911da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 40921da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 40931da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 40941da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 40951da177e4SLinus Torvalds p += len; 40961da177e4SLinus Torvalds } 40971da177e4SLinus Torvalds 40981da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 40991da177e4SLinus Torvalds return p; 41001da177e4SLinus Torvalds } 41011da177e4SLinus Torvalds 41021da177e4SLinus Torvalds /* 41031da177e4SLinus Torvalds * We need to translate between nfs status return values and 41041da177e4SLinus Torvalds * the local errno values which may not be the same. 41051da177e4SLinus Torvalds */ 41061da177e4SLinus Torvalds static struct { 41071da177e4SLinus Torvalds int stat; 41081da177e4SLinus Torvalds int errno; 41091da177e4SLinus Torvalds } nfs_errtbl[] = { 41101da177e4SLinus Torvalds { NFS4_OK, 0 }, 41111da177e4SLinus Torvalds { NFS4ERR_PERM, EPERM }, 41121da177e4SLinus Torvalds { NFS4ERR_NOENT, ENOENT }, 41131da177e4SLinus Torvalds { NFS4ERR_IO, errno_NFSERR_IO }, 41141da177e4SLinus Torvalds { NFS4ERR_NXIO, ENXIO }, 41151da177e4SLinus Torvalds { NFS4ERR_ACCESS, EACCES }, 41161da177e4SLinus Torvalds { NFS4ERR_EXIST, EEXIST }, 41171da177e4SLinus Torvalds { NFS4ERR_XDEV, EXDEV }, 41181da177e4SLinus Torvalds { NFS4ERR_NOTDIR, ENOTDIR }, 41191da177e4SLinus Torvalds { NFS4ERR_ISDIR, EISDIR }, 41201da177e4SLinus Torvalds { NFS4ERR_INVAL, EINVAL }, 41211da177e4SLinus Torvalds { NFS4ERR_FBIG, EFBIG }, 41221da177e4SLinus Torvalds { NFS4ERR_NOSPC, ENOSPC }, 41231da177e4SLinus Torvalds { NFS4ERR_ROFS, EROFS }, 41241da177e4SLinus Torvalds { NFS4ERR_MLINK, EMLINK }, 41251da177e4SLinus Torvalds { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, 41261da177e4SLinus Torvalds { NFS4ERR_NOTEMPTY, ENOTEMPTY }, 41271da177e4SLinus Torvalds { NFS4ERR_DQUOT, EDQUOT }, 41281da177e4SLinus Torvalds { NFS4ERR_STALE, ESTALE }, 41291da177e4SLinus Torvalds { NFS4ERR_BADHANDLE, EBADHANDLE }, 41306ebf3656SManoj Naik { NFS4ERR_BADOWNER, EINVAL }, 41316ebf3656SManoj Naik { NFS4ERR_BADNAME, EINVAL }, 41321da177e4SLinus Torvalds { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, 41331da177e4SLinus Torvalds { NFS4ERR_NOTSUPP, ENOTSUPP }, 41341da177e4SLinus Torvalds { NFS4ERR_TOOSMALL, ETOOSMALL }, 41351da177e4SLinus Torvalds { NFS4ERR_SERVERFAULT, ESERVERFAULT }, 41361da177e4SLinus Torvalds { NFS4ERR_BADTYPE, EBADTYPE }, 41371da177e4SLinus Torvalds { NFS4ERR_LOCKED, EAGAIN }, 41381da177e4SLinus Torvalds { NFS4ERR_RESOURCE, EREMOTEIO }, 41391da177e4SLinus Torvalds { NFS4ERR_SYMLINK, ELOOP }, 41401da177e4SLinus Torvalds { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, 41411da177e4SLinus Torvalds { NFS4ERR_DEADLOCK, EDEADLK }, 41421da177e4SLinus Torvalds { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs 41431da177e4SLinus Torvalds * to be handled by a 41441da177e4SLinus Torvalds * middle-layer. 41451da177e4SLinus Torvalds */ 41461da177e4SLinus Torvalds { -1, EIO } 41471da177e4SLinus Torvalds }; 41481da177e4SLinus Torvalds 41491da177e4SLinus Torvalds /* 41501da177e4SLinus Torvalds * Convert an NFS error code to a local one. 41511da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 41521da177e4SLinus Torvalds */ 41531da177e4SLinus Torvalds static int 41541da177e4SLinus Torvalds nfs_stat_to_errno(int stat) 41551da177e4SLinus Torvalds { 41561da177e4SLinus Torvalds int i; 41571da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 41581da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 41591da177e4SLinus Torvalds return nfs_errtbl[i].errno; 41601da177e4SLinus Torvalds } 41611da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 41621da177e4SLinus Torvalds /* The server is looney tunes. */ 41631da177e4SLinus Torvalds return ESERVERFAULT; 41641da177e4SLinus Torvalds } 41651da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 41661da177e4SLinus Torvalds * handle it. 41671da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 41681da177e4SLinus Torvalds * not conflict with native Linux error codes. 41691da177e4SLinus Torvalds */ 41701da177e4SLinus Torvalds return stat; 41711da177e4SLinus Torvalds } 41721da177e4SLinus Torvalds 41731da177e4SLinus Torvalds #ifndef MAX 41741da177e4SLinus Torvalds # define MAX(a, b) (((a) > (b))? (a) : (b)) 41751da177e4SLinus Torvalds #endif 41761da177e4SLinus Torvalds 41771da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 41781da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 41791da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 41801da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 41811da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 41821da177e4SLinus Torvalds .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2, \ 41831da177e4SLinus Torvalds } 41841da177e4SLinus Torvalds 41851da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 41861da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 41871da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 41881da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 41891da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 41901da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 41911da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 41921da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 41931da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 41941da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 41951da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 41961da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 41971da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 41981da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 41991da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 42001da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 42011da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 42021da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 42031da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 42041da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 42051da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 42061da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 42071da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 42081da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 42091da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 42101da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 42111da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 42121da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 42131da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 42141da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 42151da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 42161da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4217029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 421823ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 42191da177e4SLinus Torvalds }; 42201da177e4SLinus Torvalds 42211da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 42221da177e4SLinus Torvalds .number = 4, 42231da177e4SLinus Torvalds .nrprocs = sizeof(nfs4_procedures)/sizeof(nfs4_procedures[0]), 42241da177e4SLinus Torvalds .procs = nfs4_procedures 42251da177e4SLinus Torvalds }; 42261da177e4SLinus Torvalds 42271da177e4SLinus Torvalds /* 42281da177e4SLinus Torvalds * Local variables: 42291da177e4SLinus Torvalds * c-basic-offset: 8 42301da177e4SLinus Torvalds * End: 42311da177e4SLinus Torvalds */ 4232