11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * fs/nfs/nfs4xdr.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side XDR for NFSv4. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2002 The Regents of the University of Michigan. 71da177e4SLinus Torvalds * All rights reserved. 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Kendrick Smith <kmsmith@umich.edu> 101da177e4SLinus Torvalds * Andy Adamson <andros@umich.edu> 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4SLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4SLinus Torvalds * are met: 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * 1. Redistributions of source code must retain the above copyright 171da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer. 181da177e4SLinus Torvalds * 2. Redistributions in binary form must reproduce the above copyright 191da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer in the 201da177e4SLinus Torvalds * documentation and/or other materials provided with the distribution. 211da177e4SLinus Torvalds * 3. Neither the name of the University nor the names of its 221da177e4SLinus Torvalds * contributors may be used to endorse or promote products derived 231da177e4SLinus Torvalds * from this software without specific prior written permission. 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 261da177e4SLinus Torvalds * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 271da177e4SLinus Torvalds * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 281da177e4SLinus Torvalds * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291da177e4SLinus Torvalds * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 301da177e4SLinus Torvalds * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 311da177e4SLinus Torvalds * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 321da177e4SLinus Torvalds * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 331da177e4SLinus Torvalds * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 341da177e4SLinus Torvalds * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 351da177e4SLinus Torvalds * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361da177e4SLinus Torvalds */ 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #include <linux/param.h> 391da177e4SLinus Torvalds #include <linux/time.h> 401da177e4SLinus Torvalds #include <linux/mm.h> 411da177e4SLinus Torvalds #include <linux/slab.h> 421da177e4SLinus Torvalds #include <linux/utsname.h> 431da177e4SLinus Torvalds #include <linux/errno.h> 441da177e4SLinus Torvalds #include <linux/string.h> 451da177e4SLinus Torvalds #include <linux/in.h> 461da177e4SLinus Torvalds #include <linux/pagemap.h> 471da177e4SLinus Torvalds #include <linux/proc_fs.h> 481da177e4SLinus Torvalds #include <linux/kdev_t.h> 491da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 501da177e4SLinus Torvalds #include <linux/nfs.h> 511da177e4SLinus Torvalds #include <linux/nfs4.h> 521da177e4SLinus Torvalds #include <linux/nfs_fs.h> 531da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 544ce79717STrond Myklebust #include "nfs4_fs.h" 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 591da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 601da177e4SLinus Torvalds 610a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 641da177e4SLinus Torvalds #ifdef DEBUG 651da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 661da177e4SLinus Torvalds #else 671da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 681da177e4SLinus Torvalds #endif 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* lock,open owner id: 719f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 721da177e4SLinus Torvalds */ 739f958ab8STrond Myklebust #define open_owner_id_maxsz (1 + 4) 749f958ab8STrond Myklebust #define lock_owner_id_maxsz (1 + 4) 759104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 761da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 771da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 781da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 791da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 809104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 819104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 829104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 839104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 841da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 851da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 861da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 871da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 881da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 891da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 901da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 911da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9296928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9396928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 941da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 951da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 96bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 97bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 9896928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 9996928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 100bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10196928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10296928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10396928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1049104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1059104a55dSTrond Myklebust 1 + 2 + 1 + \ 1069104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1079104a55dSTrond Myklebust nfs4_group_maxsz + \ 1089104a55dSTrond Myklebust 4 + 4) 1091da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1101da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11156ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11256ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1132f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1141da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1151da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1161da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1171da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1181da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 119cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 120cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 121cc38bac3SChuck Lever 1 /* sc_prog */ + \ 122cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 123cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 124cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1251da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1261da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1271da177e4SLinus Torvalds 2 + \ 1281da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1291da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1301da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1311da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1321da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1331da177e4SLinus Torvalds (op_decode_hdr_maxsz) 134e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 135e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1362cebf828STrond Myklebust #define encode_share_access_maxsz \ 1372cebf828STrond Myklebust (2) 1389104a55dSTrond Myklebust #define encode_createmode_maxsz (1 + encode_attrs_maxsz) 1392cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1402cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1412cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1422cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1432cebf828STrond Myklebust open_owner_id_maxsz + \ 1442cebf828STrond Myklebust encode_opentype_maxsz + \ 1452cebf828STrond Myklebust encode_claim_null_maxsz) 1462cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1479104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1482cebf828STrond Myklebust decode_ace_maxsz) 1492cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1502cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1519104a55dSTrond Myklebust decode_stateid_maxsz + \ 1522cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1532cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1542cebf828STrond Myklebust decode_delegation_maxsz) 1559104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1569104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1579104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1589104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1599104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1609104a55dSTrond Myklebust decode_stateid_maxsz) 1619104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1629104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1639104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1649104a55dSTrond Myklebust encode_share_access_maxsz) 1659104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1669104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1679104a55dSTrond Myklebust decode_stateid_maxsz) 1689104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1699104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1709104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1719104a55dSTrond Myklebust decode_stateid_maxsz) 1729104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1739104a55dSTrond Myklebust encode_stateid_maxsz + \ 1749104a55dSTrond Myklebust encode_attrs_maxsz) 1759104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1769104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1779104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1789104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1799104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1809104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1819104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1829104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1839104a55dSTrond Myklebust decode_verifier_maxsz) 1849104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1859104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1869104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1879104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1889104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1909104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1919104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1929104a55dSTrond Myklebust decode_verifier_maxsz) 1931da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1941da177e4SLinus Torvalds nfs4_name_maxsz) 1956ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 1966ce18391SBenny Halevy decode_change_info_maxsz) 1971da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1981da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1996ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2006ce18391SBenny Halevy decode_change_info_maxsz + \ 2016ce18391SBenny Halevy decode_change_info_maxsz) 2021da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2031da177e4SLinus Torvalds nfs4_name_maxsz) 2046ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 2059104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2069104a55dSTrond Myklebust 7 + \ 2079104a55dSTrond Myklebust 1 + encode_stateid_maxsz + 8) 2089104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2099104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2109104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2119104a55dSTrond Myklebust decode_lock_denied_maxsz) 2129104a55dSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) 2139104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2149104a55dSTrond Myklebust decode_lock_denied_maxsz) 2159104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2169104a55dSTrond Myklebust encode_stateid_maxsz + \ 2179104a55dSTrond Myklebust 4) 2189104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2199104a55dSTrond Myklebust decode_stateid_maxsz) 2209104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2219104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2221da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2231da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 22494a6d753SChuck Lever 1 + \ 22596928206SJ. Bruce Fields nfs4_fattr_maxsz) 2261da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2271da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2289104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2299104a55dSTrond Myklebust encode_attrs_maxsz) 2302cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2312cebf828STrond Myklebust decode_change_info_maxsz + \ 2322cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2339104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2349104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2351da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2361da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2379104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2389104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2399104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2409104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2419104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2429104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 243e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 244e6889620STrond Myklebust (encode_getattr_maxsz) 245e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 246e6889620STrond Myklebust (0) 2471da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 2481da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 2491da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 2501da177e4SLinus Torvalds encode_putfh_maxsz + \ 2519104a55dSTrond Myklebust encode_read_maxsz) 2521da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 2531da177e4SLinus Torvalds decode_putfh_maxsz + \ 2549104a55dSTrond Myklebust decode_read_maxsz) 2551da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 2561da177e4SLinus Torvalds encode_putfh_maxsz + \ 2579104a55dSTrond Myklebust encode_readlink_maxsz) 2581da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 2591da177e4SLinus Torvalds decode_putfh_maxsz + \ 2609104a55dSTrond Myklebust decode_readlink_maxsz) 2611da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 2621da177e4SLinus Torvalds encode_putfh_maxsz + \ 2639104a55dSTrond Myklebust encode_readdir_maxsz) 2641da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 2651da177e4SLinus Torvalds decode_putfh_maxsz + \ 2669104a55dSTrond Myklebust decode_readdir_maxsz) 2671da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 2681da177e4SLinus Torvalds encode_putfh_maxsz + \ 2699104a55dSTrond Myklebust encode_write_maxsz + \ 2704f9838c7STrond Myklebust encode_getattr_maxsz) 2711da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 2721da177e4SLinus Torvalds decode_putfh_maxsz + \ 2739104a55dSTrond Myklebust decode_write_maxsz + \ 2744f9838c7STrond Myklebust decode_getattr_maxsz) 2751da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 2761da177e4SLinus Torvalds encode_putfh_maxsz + \ 2779104a55dSTrond Myklebust encode_commit_maxsz + \ 2784f9838c7STrond Myklebust encode_getattr_maxsz) 2791da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 2801da177e4SLinus Torvalds decode_putfh_maxsz + \ 2819104a55dSTrond Myklebust decode_commit_maxsz + \ 2824f9838c7STrond Myklebust decode_getattr_maxsz) 2831da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 2841da177e4SLinus Torvalds encode_putfh_maxsz + \ 2852cebf828STrond Myklebust encode_savefh_maxsz + \ 2862cebf828STrond Myklebust encode_open_maxsz + \ 2872cebf828STrond Myklebust encode_getfh_maxsz + \ 2881da177e4SLinus Torvalds encode_getattr_maxsz + \ 2892cebf828STrond Myklebust encode_restorefh_maxsz + \ 2902cebf828STrond Myklebust encode_getattr_maxsz) 2911da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 2921da177e4SLinus Torvalds decode_putfh_maxsz + \ 2932cebf828STrond Myklebust decode_savefh_maxsz + \ 2942cebf828STrond Myklebust decode_open_maxsz + \ 2952cebf828STrond Myklebust decode_getfh_maxsz + \ 2961da177e4SLinus Torvalds decode_getattr_maxsz + \ 2972cebf828STrond Myklebust decode_restorefh_maxsz + \ 2982cebf828STrond Myklebust decode_getattr_maxsz) 2991da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3001da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3011da177e4SLinus Torvalds encode_putfh_maxsz + \ 3029104a55dSTrond Myklebust encode_open_confirm_maxsz) 3039104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3049104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3051da177e4SLinus Torvalds decode_putfh_maxsz + \ 3069104a55dSTrond Myklebust decode_open_confirm_maxsz) 3071da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3081da177e4SLinus Torvalds encode_putfh_maxsz + \ 3092cebf828STrond Myklebust encode_open_maxsz + \ 3102cebf828STrond Myklebust encode_getattr_maxsz) 3111da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3121da177e4SLinus Torvalds decode_putfh_maxsz + \ 3132cebf828STrond Myklebust decode_open_maxsz + \ 3142cebf828STrond Myklebust decode_getattr_maxsz) 3151da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3161da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3171da177e4SLinus Torvalds encode_putfh_maxsz + \ 3189104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 319516a6af6STrond Myklebust encode_getattr_maxsz) 3201da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 3211da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3221da177e4SLinus Torvalds decode_putfh_maxsz + \ 3239104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 324516a6af6STrond Myklebust decode_getattr_maxsz) 3251da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 3261da177e4SLinus Torvalds encode_putfh_maxsz + \ 3279104a55dSTrond Myklebust encode_close_maxsz + \ 328516a6af6STrond Myklebust encode_getattr_maxsz) 3291da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 3301da177e4SLinus Torvalds decode_putfh_maxsz + \ 3319104a55dSTrond Myklebust decode_close_maxsz + \ 332516a6af6STrond Myklebust decode_getattr_maxsz) 3331da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 3341da177e4SLinus Torvalds encode_putfh_maxsz + \ 3359104a55dSTrond Myklebust encode_setattr_maxsz + \ 3361da177e4SLinus Torvalds encode_getattr_maxsz) 3371da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 3381da177e4SLinus Torvalds decode_putfh_maxsz + \ 3399104a55dSTrond Myklebust decode_setattr_maxsz + \ 3409104a55dSTrond Myklebust decode_getattr_maxsz) 3411da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 3421da177e4SLinus Torvalds encode_putfh_maxsz + \ 3431da177e4SLinus Torvalds encode_fsinfo_maxsz) 3441da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 3451da177e4SLinus Torvalds decode_putfh_maxsz + \ 3461da177e4SLinus Torvalds decode_fsinfo_maxsz) 3471da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 3481da177e4SLinus Torvalds encode_renew_maxsz) 3491da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 3501da177e4SLinus Torvalds decode_renew_maxsz) 3511da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 3521da177e4SLinus Torvalds encode_setclientid_maxsz) 3531da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 3541da177e4SLinus Torvalds decode_setclientid_maxsz) 3551da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 3561da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3571da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 3581da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 3591da177e4SLinus Torvalds encode_fsinfo_maxsz) 3601da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 3611da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3621da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 3631da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 3641da177e4SLinus Torvalds decode_fsinfo_maxsz) 3651da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 3661da177e4SLinus Torvalds encode_putfh_maxsz + \ 3679104a55dSTrond Myklebust encode_lock_maxsz) 3681da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 3691da177e4SLinus Torvalds decode_putfh_maxsz + \ 3709104a55dSTrond Myklebust decode_lock_maxsz) 3711da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 3721da177e4SLinus Torvalds encode_putfh_maxsz + \ 3739104a55dSTrond Myklebust encode_lockt_maxsz) 3749104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 3759104a55dSTrond Myklebust decode_putfh_maxsz + \ 3769104a55dSTrond Myklebust decode_lockt_maxsz) 3771da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 3781da177e4SLinus Torvalds encode_putfh_maxsz + \ 3799104a55dSTrond Myklebust encode_locku_maxsz) 3801da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 3811da177e4SLinus Torvalds decode_putfh_maxsz + \ 3829104a55dSTrond Myklebust decode_locku_maxsz) 3831da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 3841da177e4SLinus Torvalds encode_putfh_maxsz + \ 38576b32999STrond Myklebust encode_access_maxsz + \ 38676b32999STrond Myklebust encode_getattr_maxsz) 3871da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 3881da177e4SLinus Torvalds decode_putfh_maxsz + \ 38976b32999STrond Myklebust decode_access_maxsz + \ 39076b32999STrond Myklebust decode_getattr_maxsz) 3911da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 3921da177e4SLinus Torvalds encode_putfh_maxsz + \ 3931da177e4SLinus Torvalds encode_getattr_maxsz) 3941da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 3951da177e4SLinus Torvalds decode_putfh_maxsz + \ 3961da177e4SLinus Torvalds decode_getattr_maxsz) 3971da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 3981da177e4SLinus Torvalds encode_putfh_maxsz + \ 3991da177e4SLinus Torvalds encode_lookup_maxsz + \ 4001da177e4SLinus Torvalds encode_getattr_maxsz + \ 4011da177e4SLinus Torvalds encode_getfh_maxsz) 4021da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 4031da177e4SLinus Torvalds decode_putfh_maxsz + \ 404e6889620STrond Myklebust decode_lookup_maxsz + \ 4051da177e4SLinus Torvalds decode_getattr_maxsz + \ 4061da177e4SLinus Torvalds decode_getfh_maxsz) 4071da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 4081da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4091da177e4SLinus Torvalds encode_getattr_maxsz + \ 4101da177e4SLinus Torvalds encode_getfh_maxsz) 4111da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 4121da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4131da177e4SLinus Torvalds decode_getattr_maxsz + \ 4141da177e4SLinus Torvalds decode_getfh_maxsz) 4151da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 4161da177e4SLinus Torvalds encode_putfh_maxsz + \ 41716e42959STrond Myklebust encode_remove_maxsz + \ 41816e42959STrond Myklebust encode_getattr_maxsz) 4191da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 4201da177e4SLinus Torvalds decode_putfh_maxsz + \ 4216ce18391SBenny Halevy decode_remove_maxsz + \ 42216e42959STrond Myklebust decode_getattr_maxsz) 4231da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 4241da177e4SLinus Torvalds encode_putfh_maxsz + \ 4251da177e4SLinus Torvalds encode_savefh_maxsz + \ 4261da177e4SLinus Torvalds encode_putfh_maxsz + \ 4276caf2c82STrond Myklebust encode_rename_maxsz + \ 4286caf2c82STrond Myklebust encode_getattr_maxsz + \ 4296caf2c82STrond Myklebust encode_restorefh_maxsz + \ 4306caf2c82STrond Myklebust encode_getattr_maxsz) 4311da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 4321da177e4SLinus Torvalds decode_putfh_maxsz + \ 4331da177e4SLinus Torvalds decode_savefh_maxsz + \ 4341da177e4SLinus Torvalds decode_putfh_maxsz + \ 4356caf2c82STrond Myklebust decode_rename_maxsz + \ 4366caf2c82STrond Myklebust decode_getattr_maxsz + \ 4376caf2c82STrond Myklebust decode_restorefh_maxsz + \ 4386caf2c82STrond Myklebust decode_getattr_maxsz) 4391da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 4401da177e4SLinus Torvalds encode_putfh_maxsz + \ 4411da177e4SLinus Torvalds encode_savefh_maxsz + \ 4421da177e4SLinus Torvalds encode_putfh_maxsz + \ 44391ba2eeeSTrond Myklebust encode_link_maxsz + \ 44491ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 44591ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 44691ba2eeeSTrond Myklebust decode_getattr_maxsz) 4471da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 4481da177e4SLinus Torvalds decode_putfh_maxsz + \ 4491da177e4SLinus Torvalds decode_savefh_maxsz + \ 4501da177e4SLinus Torvalds decode_putfh_maxsz + \ 45191ba2eeeSTrond Myklebust decode_link_maxsz + \ 45291ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 45391ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 45491ba2eeeSTrond Myklebust decode_getattr_maxsz) 4551da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 4561da177e4SLinus Torvalds encode_putfh_maxsz + \ 4571da177e4SLinus Torvalds encode_symlink_maxsz + \ 4581da177e4SLinus Torvalds encode_getattr_maxsz + \ 4591da177e4SLinus Torvalds encode_getfh_maxsz) 4601da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 4611da177e4SLinus Torvalds decode_putfh_maxsz + \ 4621da177e4SLinus Torvalds decode_symlink_maxsz + \ 4631da177e4SLinus Torvalds decode_getattr_maxsz + \ 4641da177e4SLinus Torvalds decode_getfh_maxsz) 4651da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 4661da177e4SLinus Torvalds encode_putfh_maxsz + \ 46756ae19f3STrond Myklebust encode_savefh_maxsz + \ 4681da177e4SLinus Torvalds encode_create_maxsz + \ 46956ae19f3STrond Myklebust encode_getfh_maxsz + \ 4701da177e4SLinus Torvalds encode_getattr_maxsz + \ 47156ae19f3STrond Myklebust encode_restorefh_maxsz + \ 47256ae19f3STrond Myklebust encode_getattr_maxsz) 4731da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 4741da177e4SLinus Torvalds decode_putfh_maxsz + \ 47556ae19f3STrond Myklebust decode_savefh_maxsz + \ 4761da177e4SLinus Torvalds decode_create_maxsz + \ 47756ae19f3STrond Myklebust decode_getfh_maxsz + \ 4781da177e4SLinus Torvalds decode_getattr_maxsz + \ 47956ae19f3STrond Myklebust decode_restorefh_maxsz + \ 48056ae19f3STrond Myklebust decode_getattr_maxsz) 4811da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 4821da177e4SLinus Torvalds encode_putfh_maxsz + \ 4831da177e4SLinus Torvalds encode_getattr_maxsz) 4841da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 4851da177e4SLinus Torvalds decode_putfh_maxsz + \ 4861da177e4SLinus Torvalds decode_getattr_maxsz) 4871da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 4881da177e4SLinus Torvalds encode_putfh_maxsz + \ 4899104a55dSTrond Myklebust encode_statfs_maxsz) 4901da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 4911da177e4SLinus Torvalds decode_putfh_maxsz + \ 4929104a55dSTrond Myklebust decode_statfs_maxsz) 4931da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 494ab91f264STrond Myklebust encode_putfh_maxsz + \ 4951da177e4SLinus Torvalds encode_getattr_maxsz) 4961da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 497ab91f264STrond Myklebust decode_putfh_maxsz + \ 4981da177e4SLinus Torvalds decode_getattr_maxsz) 4991da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 5001da177e4SLinus Torvalds encode_putfh_maxsz + \ 501fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 502fa178f29STrond Myklebust encode_getattr_maxsz) 5031da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 504fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 505fa178f29STrond Myklebust decode_getattr_maxsz) 506029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 507029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 5089104a55dSTrond Myklebust encode_getacl_maxsz) 509029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 510029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 5119104a55dSTrond Myklebust decode_getacl_maxsz) 51223ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 51323ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 5149104a55dSTrond Myklebust encode_setacl_maxsz) 51523ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 51623ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 5179104a55dSTrond Myklebust decode_setacl_maxsz) 518683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 519683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 520683b57b4STrond Myklebust encode_putfh_maxsz + \ 521e6889620STrond Myklebust encode_lookup_maxsz + \ 522e6889620STrond Myklebust encode_fs_locations_maxsz) 523683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 524683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 525683b57b4STrond Myklebust decode_putfh_maxsz + \ 526e6889620STrond Myklebust decode_lookup_maxsz + \ 527e6889620STrond Myklebust decode_fs_locations_maxsz) 5281da177e4SLinus Torvalds 529bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 530bca79478STrond Myklebust [NF4BAD] = 0, 531bca79478STrond Myklebust [NF4REG] = S_IFREG, 532bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 533bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 534bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 535bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 536bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 537bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 538bca79478STrond Myklebust [NF4ATTRDIR] = 0, 539bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 5401da177e4SLinus Torvalds }; 5411da177e4SLinus Torvalds 5421da177e4SLinus Torvalds struct compound_hdr { 5431da177e4SLinus Torvalds int32_t status; 5441da177e4SLinus Torvalds uint32_t nops; 545d017931cSAndy Adamson __be32 * nops_p; 5461da177e4SLinus Torvalds uint32_t taglen; 5471da177e4SLinus Torvalds char * tag; 5480c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 5491da177e4SLinus Torvalds }; 5501da177e4SLinus Torvalds 5511da177e4SLinus Torvalds /* 5521da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 5531da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 5541da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 5551da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 5561da177e4SLinus Torvalds * 5571da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 5581da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 5591da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 5601da177e4SLinus Torvalds */ 5611da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 5621da177e4SLinus Torvalds #define WRITE64(n) do { \ 5631da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 5641da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 5651da177e4SLinus Torvalds } while (0) 5661da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 5671da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 5681da177e4SLinus Torvalds } while (0) 5691da177e4SLinus Torvalds 5701da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 5711da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 5721da177e4SLinus Torvalds BUG_ON(!p); \ 5731da177e4SLinus Torvalds } while (0) 5741da177e4SLinus Torvalds 5751da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 5761da177e4SLinus Torvalds { 5778687b63aSAl Viro __be32 *p; 5781da177e4SLinus Torvalds 5791da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 5801da177e4SLinus Torvalds BUG_ON(p == NULL); 5811da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 5821da177e4SLinus Torvalds } 5831da177e4SLinus Torvalds 5840c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 5850c4e8c18SBenny Halevy struct rpc_rqst *req, 5860c4e8c18SBenny Halevy struct compound_hdr *hdr) 5871da177e4SLinus Torvalds { 5888687b63aSAl Viro __be32 *p; 5890c4e8c18SBenny Halevy struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 5900c4e8c18SBenny Halevy 5910c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 5920c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 5930c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 5940c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 5951da177e4SLinus Torvalds 5961da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 5971da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 5981da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 5991da177e4SLinus Torvalds WRITE32(hdr->taglen); 6001da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 6011da177e4SLinus Torvalds WRITE32(NFS4_MINOR_VERSION); 602d017931cSAndy Adamson hdr->nops_p = p; 6031da177e4SLinus Torvalds WRITE32(hdr->nops); 604d017931cSAndy Adamson } 605d017931cSAndy Adamson 606d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 607d017931cSAndy Adamson { 608d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 6091da177e4SLinus Torvalds } 6101da177e4SLinus Torvalds 6111da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 6121da177e4SLinus Torvalds { 6138687b63aSAl Viro __be32 *p; 6141da177e4SLinus Torvalds 6151da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 6161da177e4SLinus Torvalds BUG_ON(p == NULL); 6171da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 6181da177e4SLinus Torvalds } 6191da177e4SLinus Torvalds 620cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 6211da177e4SLinus Torvalds { 6221da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 6231da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 6241da177e4SLinus Torvalds int owner_namelen = 0; 6251da177e4SLinus Torvalds int owner_grouplen = 0; 6268687b63aSAl Viro __be32 *p; 6278687b63aSAl Viro __be32 *q; 6281da177e4SLinus Torvalds int len; 6291da177e4SLinus Torvalds uint32_t bmval0 = 0; 6301da177e4SLinus Torvalds uint32_t bmval1 = 0; 6311da177e4SLinus Torvalds 6321da177e4SLinus Torvalds /* 6331da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 6341da177e4SLinus Torvalds * In the worst-case, this would be 6351da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 6361da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 63723ec6965SJ. Bruce Fields * such as owner/group. 6381da177e4SLinus Torvalds */ 6391da177e4SLinus Torvalds len = 16; 6401da177e4SLinus Torvalds 6411da177e4SLinus Torvalds /* Sigh */ 6421da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 6431da177e4SLinus Torvalds len += 8; 6441da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 6451da177e4SLinus Torvalds len += 4; 6461da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6477539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 6481da177e4SLinus Torvalds if (owner_namelen < 0) { 649fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 6501da177e4SLinus Torvalds iap->ia_uid); 6511da177e4SLinus Torvalds /* XXX */ 6521da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 6531da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 6541da177e4SLinus Torvalds /* goto out; */ 6551da177e4SLinus Torvalds } 6561da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 6571da177e4SLinus Torvalds } 6581da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 6597539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 6601da177e4SLinus Torvalds if (owner_grouplen < 0) { 661fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 6621da177e4SLinus Torvalds iap->ia_gid); 6631da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 6641da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 6651da177e4SLinus Torvalds /* goto out; */ 6661da177e4SLinus Torvalds } 6671da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 6681da177e4SLinus Torvalds } 6691da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 6701da177e4SLinus Torvalds len += 16; 6711da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 6721da177e4SLinus Torvalds len += 4; 6731da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 6741da177e4SLinus Torvalds len += 16; 6751da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 6761da177e4SLinus Torvalds len += 4; 6771da177e4SLinus Torvalds RESERVE_SPACE(len); 6781da177e4SLinus Torvalds 6791da177e4SLinus Torvalds /* 6801da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 6811da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 6821da177e4SLinus Torvalds */ 6831da177e4SLinus Torvalds WRITE32(2); 6841da177e4SLinus Torvalds q = p; 6851da177e4SLinus Torvalds p += 3; 6861da177e4SLinus Torvalds 6871da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 6881da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 6891da177e4SLinus Torvalds WRITE64(iap->ia_size); 6901da177e4SLinus Torvalds } 6911da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 6921da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 693cf3fff54STrond Myklebust WRITE32(iap->ia_mode & S_IALLUGO); 6941da177e4SLinus Torvalds } 6951da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6961da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 6971da177e4SLinus Torvalds WRITE32(owner_namelen); 6981da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 6991da177e4SLinus Torvalds } 7001da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 7011da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 7021da177e4SLinus Torvalds WRITE32(owner_grouplen); 7031da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 7041da177e4SLinus Torvalds } 7051da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 7061da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 7071da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 7081da177e4SLinus Torvalds WRITE32(0); 7091da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 7101da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 7111da177e4SLinus Torvalds } 7121da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 7131da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 7141da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 7151da177e4SLinus Torvalds } 7161da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 7171da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 7181da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 7191da177e4SLinus Torvalds WRITE32(0); 7201da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 7211da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 7221da177e4SLinus Torvalds } 7231da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 7241da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 7251da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 7261da177e4SLinus Torvalds } 7271da177e4SLinus Torvalds 7281da177e4SLinus Torvalds /* 7291da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 7301da177e4SLinus Torvalds */ 7311da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 732fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 7331da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 7341da177e4SLinus Torvalds BUG(); 7351da177e4SLinus Torvalds } 7361da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 7371da177e4SLinus Torvalds *q++ = htonl(bmval0); 7381da177e4SLinus Torvalds *q++ = htonl(bmval1); 7391da177e4SLinus Torvalds *q++ = htonl(len); 7401da177e4SLinus Torvalds 7411da177e4SLinus Torvalds /* out: */ 7421da177e4SLinus Torvalds } 7431da177e4SLinus Torvalds 744cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 7451da177e4SLinus Torvalds { 7468687b63aSAl Viro __be32 *p; 7471da177e4SLinus Torvalds 7481da177e4SLinus Torvalds RESERVE_SPACE(8); 7491da177e4SLinus Torvalds WRITE32(OP_ACCESS); 7501da177e4SLinus Torvalds WRITE32(access); 751d017931cSAndy Adamson hdr->nops++; 752dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 7531da177e4SLinus Torvalds } 7541da177e4SLinus Torvalds 755cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 7561da177e4SLinus Torvalds { 7578687b63aSAl Viro __be32 *p; 7581da177e4SLinus Torvalds 7598ae20abdSTrond Myklebust RESERVE_SPACE(8+NFS4_STATEID_SIZE); 7601da177e4SLinus Torvalds WRITE32(OP_CLOSE); 761cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 7628ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 763d017931cSAndy Adamson hdr->nops++; 764dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 7651da177e4SLinus Torvalds } 7661da177e4SLinus Torvalds 767cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 7681da177e4SLinus Torvalds { 7698687b63aSAl Viro __be32 *p; 7701da177e4SLinus Torvalds 7711da177e4SLinus Torvalds RESERVE_SPACE(16); 7721da177e4SLinus Torvalds WRITE32(OP_COMMIT); 7731da177e4SLinus Torvalds WRITE64(args->offset); 7741da177e4SLinus Torvalds WRITE32(args->count); 775d017931cSAndy Adamson hdr->nops++; 776dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 7771da177e4SLinus Torvalds } 7781da177e4SLinus Torvalds 779cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 7801da177e4SLinus Torvalds { 7818687b63aSAl Viro __be32 *p; 7821da177e4SLinus Torvalds 7831da177e4SLinus Torvalds RESERVE_SPACE(8); 7841da177e4SLinus Torvalds WRITE32(OP_CREATE); 7851da177e4SLinus Torvalds WRITE32(create->ftype); 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds switch (create->ftype) { 7881da177e4SLinus Torvalds case NF4LNK: 78994a6d753SChuck Lever RESERVE_SPACE(4); 79094a6d753SChuck Lever WRITE32(create->u.symlink.len); 79194a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 7921da177e4SLinus Torvalds break; 7931da177e4SLinus Torvalds 7941da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 7951da177e4SLinus Torvalds RESERVE_SPACE(8); 7961da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 7971da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 7981da177e4SLinus Torvalds break; 7991da177e4SLinus Torvalds 8001da177e4SLinus Torvalds default: 8011da177e4SLinus Torvalds break; 8021da177e4SLinus Torvalds } 8031da177e4SLinus Torvalds 8041da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 8051da177e4SLinus Torvalds WRITE32(create->name->len); 8061da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 807d017931cSAndy Adamson hdr->nops++; 808dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 8091da177e4SLinus Torvalds 810cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 8111da177e4SLinus Torvalds } 8121da177e4SLinus Torvalds 813cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 8141da177e4SLinus Torvalds { 8158687b63aSAl Viro __be32 *p; 8161da177e4SLinus Torvalds 8171da177e4SLinus Torvalds RESERVE_SPACE(12); 8181da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8191da177e4SLinus Torvalds WRITE32(1); 8201da177e4SLinus Torvalds WRITE32(bitmap); 821d017931cSAndy Adamson hdr->nops++; 822dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 8231da177e4SLinus Torvalds } 8241da177e4SLinus Torvalds 825cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 8261da177e4SLinus Torvalds { 8278687b63aSAl Viro __be32 *p; 8281da177e4SLinus Torvalds 8291da177e4SLinus Torvalds RESERVE_SPACE(16); 8301da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8311da177e4SLinus Torvalds WRITE32(2); 8321da177e4SLinus Torvalds WRITE32(bm0); 8331da177e4SLinus Torvalds WRITE32(bm1); 834d017931cSAndy Adamson hdr->nops++; 835dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 8361da177e4SLinus Torvalds } 8371da177e4SLinus Torvalds 838cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 8391da177e4SLinus Torvalds { 840cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 841d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 8421da177e4SLinus Torvalds } 8431da177e4SLinus Torvalds 844cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 8451da177e4SLinus Torvalds { 846cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 847d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 8481da177e4SLinus Torvalds } 8491da177e4SLinus Torvalds 850cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 851830b8e33SManoj Naik { 852cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 853cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 854830b8e33SManoj Naik } 855830b8e33SManoj Naik 856cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 8571da177e4SLinus Torvalds { 8588687b63aSAl Viro __be32 *p; 8591da177e4SLinus Torvalds 8601da177e4SLinus Torvalds RESERVE_SPACE(4); 8611da177e4SLinus Torvalds WRITE32(OP_GETFH); 862d017931cSAndy Adamson hdr->nops++; 863dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 8641da177e4SLinus Torvalds } 8651da177e4SLinus Torvalds 866cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 8671da177e4SLinus Torvalds { 8688687b63aSAl Viro __be32 *p; 8691da177e4SLinus Torvalds 8701da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 8711da177e4SLinus Torvalds WRITE32(OP_LINK); 8721da177e4SLinus Torvalds WRITE32(name->len); 8731da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 874d017931cSAndy Adamson hdr->nops++; 875dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 8761da177e4SLinus Torvalds } 8771da177e4SLinus Torvalds 878911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 879911d1aafSTrond Myklebust { 880911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 881911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 882911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 883911d1aafSTrond Myklebust } 884911d1aafSTrond Myklebust 885911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 886911d1aafSTrond Myklebust { 887911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 888911d1aafSTrond Myklebust return ~(uint64_t)0; 889911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 890911d1aafSTrond Myklebust } 891911d1aafSTrond Myklebust 8921da177e4SLinus Torvalds /* 8931da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 8941da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 8951da177e4SLinus Torvalds */ 896cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 8971da177e4SLinus Torvalds { 8988687b63aSAl Viro __be32 *p; 8991da177e4SLinus Torvalds 9001da177e4SLinus Torvalds RESERVE_SPACE(32); 9011da177e4SLinus Torvalds WRITE32(OP_LOCK); 902911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, args->block)); 903911d1aafSTrond Myklebust WRITE32(args->reclaim); 904911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 905911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 906911d1aafSTrond Myklebust WRITE32(args->new_lock_owner); 907911d1aafSTrond Myklebust if (args->new_lock_owner){ 9089f958ab8STrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 909911d1aafSTrond Myklebust WRITE32(args->open_seqid->sequence->counter); 9108ae20abdSTrond Myklebust WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 911911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 912911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 9139f958ab8STrond Myklebust WRITE32(16); 9149f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 9159f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 9161da177e4SLinus Torvalds } 9171da177e4SLinus Torvalds else { 9188ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE+4); 9198ae20abdSTrond Myklebust WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 920911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 9211da177e4SLinus Torvalds } 922d017931cSAndy Adamson hdr->nops++; 923dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds 926cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 9271da177e4SLinus Torvalds { 9288687b63aSAl Viro __be32 *p; 9291da177e4SLinus Torvalds 9309f958ab8STrond Myklebust RESERVE_SPACE(52); 9311da177e4SLinus Torvalds WRITE32(OP_LOCKT); 932911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 933911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 934911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 935911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 9369f958ab8STrond Myklebust WRITE32(16); 9379f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 9389f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 939d017931cSAndy Adamson hdr->nops++; 940dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 9411da177e4SLinus Torvalds } 9421da177e4SLinus Torvalds 943cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 9441da177e4SLinus Torvalds { 9458687b63aSAl Viro __be32 *p; 9461da177e4SLinus Torvalds 9478ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 9481da177e4SLinus Torvalds WRITE32(OP_LOCKU); 949911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 950911d1aafSTrond Myklebust WRITE32(args->seqid->sequence->counter); 9518ae20abdSTrond Myklebust WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 952911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 953911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 954d017931cSAndy Adamson hdr->nops++; 955dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 9561da177e4SLinus Torvalds } 9571da177e4SLinus Torvalds 958cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 9591da177e4SLinus Torvalds { 9601da177e4SLinus Torvalds int len = name->len; 9618687b63aSAl Viro __be32 *p; 9621da177e4SLinus Torvalds 9631da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 9641da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 9651da177e4SLinus Torvalds WRITE32(len); 9661da177e4SLinus Torvalds WRITEMEM(name->name, len); 967d017931cSAndy Adamson hdr->nops++; 968dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 9691da177e4SLinus Torvalds } 9701da177e4SLinus Torvalds 971dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 9721da177e4SLinus Torvalds { 9738687b63aSAl Viro __be32 *p; 9741da177e4SLinus Torvalds 9751da177e4SLinus Torvalds RESERVE_SPACE(8); 976dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 9771da177e4SLinus Torvalds case FMODE_READ: 9781da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 9791da177e4SLinus Torvalds break; 9801da177e4SLinus Torvalds case FMODE_WRITE: 9811da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 9821da177e4SLinus Torvalds break; 9831da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 9841da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 9851da177e4SLinus Torvalds break; 9861da177e4SLinus Torvalds default: 987dc0b027dSTrond Myklebust WRITE32(0); 9881da177e4SLinus Torvalds } 9891da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 9901da177e4SLinus Torvalds } 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9931da177e4SLinus Torvalds { 9948687b63aSAl Viro __be32 *p; 9951da177e4SLinus Torvalds /* 9961da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 9971da177e4SLinus Torvalds * owner 4 = 32 9981da177e4SLinus Torvalds */ 9991da177e4SLinus Torvalds RESERVE_SPACE(8); 10001da177e4SLinus Torvalds WRITE32(OP_OPEN); 1001cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1002dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 10039f958ab8STrond Myklebust RESERVE_SPACE(28); 10041da177e4SLinus Torvalds WRITE64(arg->clientid); 10059f958ab8STrond Myklebust WRITE32(16); 10069f958ab8STrond Myklebust WRITEMEM("open id:", 8); 10079f958ab8STrond Myklebust WRITE64(arg->id); 10081da177e4SLinus Torvalds } 10091da177e4SLinus Torvalds 10101da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 10111da177e4SLinus Torvalds { 10128687b63aSAl Viro __be32 *p; 10131da177e4SLinus Torvalds 10141da177e4SLinus Torvalds RESERVE_SPACE(4); 10151da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 10161da177e4SLinus Torvalds case 0: 10171da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 10181da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 10191da177e4SLinus Torvalds break; 10201da177e4SLinus Torvalds default: 10211da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 10221da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 10231da177e4SLinus Torvalds } 10241da177e4SLinus Torvalds } 10251da177e4SLinus Torvalds 10261da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 10271da177e4SLinus Torvalds { 10288687b63aSAl Viro __be32 *p; 10291da177e4SLinus Torvalds 10301da177e4SLinus Torvalds RESERVE_SPACE(4); 10311da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 10321da177e4SLinus Torvalds case 0: 10331da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 10341da177e4SLinus Torvalds break; 10351da177e4SLinus Torvalds default: 10361da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 10371da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 10381da177e4SLinus Torvalds encode_createmode(xdr, arg); 10391da177e4SLinus Torvalds } 10401da177e4SLinus Torvalds } 10411da177e4SLinus Torvalds 1042bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 10431da177e4SLinus Torvalds { 10448687b63aSAl Viro __be32 *p; 10451da177e4SLinus Torvalds 10461da177e4SLinus Torvalds RESERVE_SPACE(4); 10471da177e4SLinus Torvalds switch (delegation_type) { 10481da177e4SLinus Torvalds case 0: 10491da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 10501da177e4SLinus Torvalds break; 10511da177e4SLinus Torvalds case FMODE_READ: 10521da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 10531da177e4SLinus Torvalds break; 10541da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 10551da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 10561da177e4SLinus Torvalds break; 10571da177e4SLinus Torvalds default: 10581da177e4SLinus Torvalds BUG(); 10591da177e4SLinus Torvalds } 10601da177e4SLinus Torvalds } 10611da177e4SLinus Torvalds 10621da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 10631da177e4SLinus Torvalds { 10648687b63aSAl Viro __be32 *p; 10651da177e4SLinus Torvalds 10661da177e4SLinus Torvalds RESERVE_SPACE(4); 10671da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 10681da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10691da177e4SLinus Torvalds } 10701da177e4SLinus Torvalds 1071bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 10721da177e4SLinus Torvalds { 10738687b63aSAl Viro __be32 *p; 10741da177e4SLinus Torvalds 10751da177e4SLinus Torvalds RESERVE_SPACE(4); 10761da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 10771da177e4SLinus Torvalds encode_delegation_type(xdr, type); 10781da177e4SLinus Torvalds } 10791da177e4SLinus Torvalds 10801da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 10811da177e4SLinus Torvalds { 10828687b63aSAl Viro __be32 *p; 10831da177e4SLinus Torvalds 10848ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 10851da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 10868ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 10871da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10881da177e4SLinus Torvalds } 10891da177e4SLinus Torvalds 1090cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 10911da177e4SLinus Torvalds { 10921da177e4SLinus Torvalds encode_openhdr(xdr, arg); 10931da177e4SLinus Torvalds encode_opentype(xdr, arg); 10941da177e4SLinus Torvalds switch (arg->claim) { 10951da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 10961da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 10971da177e4SLinus Torvalds break; 10981da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 10991da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 11001da177e4SLinus Torvalds break; 11011da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 11021da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 11031da177e4SLinus Torvalds break; 11041da177e4SLinus Torvalds default: 11051da177e4SLinus Torvalds BUG(); 11061da177e4SLinus Torvalds } 1107d017931cSAndy Adamson hdr->nops++; 1108dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 11091da177e4SLinus Torvalds } 11101da177e4SLinus Torvalds 1111cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 11121da177e4SLinus Torvalds { 11138687b63aSAl Viro __be32 *p; 11141da177e4SLinus Torvalds 11158ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 11161da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 11178ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1118cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1119d017931cSAndy Adamson hdr->nops++; 1120dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 11211da177e4SLinus Torvalds } 11221da177e4SLinus Torvalds 1123cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11241da177e4SLinus Torvalds { 11258687b63aSAl Viro __be32 *p; 11261da177e4SLinus Torvalds 11278ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 11281da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 11298ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1130cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1131dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1132d017931cSAndy Adamson hdr->nops++; 1133dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 11341da177e4SLinus Torvalds } 11351da177e4SLinus Torvalds 1136cf8cdbe5SAndy Adamson static void 1137d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 11381da177e4SLinus Torvalds { 11391da177e4SLinus Torvalds int len = fh->size; 11408687b63aSAl Viro __be32 *p; 11411da177e4SLinus Torvalds 11421da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 11431da177e4SLinus Torvalds WRITE32(OP_PUTFH); 11441da177e4SLinus Torvalds WRITE32(len); 11451da177e4SLinus Torvalds WRITEMEM(fh->data, len); 1146d017931cSAndy Adamson hdr->nops++; 1147dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 11481da177e4SLinus Torvalds } 11491da177e4SLinus Torvalds 1150cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 11511da177e4SLinus Torvalds { 11528687b63aSAl Viro __be32 *p; 11531da177e4SLinus Torvalds 11541da177e4SLinus Torvalds RESERVE_SPACE(4); 11551da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 1156d017931cSAndy Adamson hdr->nops++; 1157dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 11581da177e4SLinus Torvalds } 11591da177e4SLinus Torvalds 11601da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 11611da177e4SLinus Torvalds { 11621da177e4SLinus Torvalds nfs4_stateid stateid; 11638687b63aSAl Viro __be32 *p; 11641da177e4SLinus Torvalds 11658ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE); 11661da177e4SLinus Torvalds if (ctx->state != NULL) { 11671da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 11688ae20abdSTrond Myklebust WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 11691da177e4SLinus Torvalds } else 11708ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 11711da177e4SLinus Torvalds } 11721da177e4SLinus Torvalds 1173cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 11741da177e4SLinus Torvalds { 11758687b63aSAl Viro __be32 *p; 11761da177e4SLinus Torvalds 11771da177e4SLinus Torvalds RESERVE_SPACE(4); 11781da177e4SLinus Torvalds WRITE32(OP_READ); 11791da177e4SLinus Torvalds 11801da177e4SLinus Torvalds encode_stateid(xdr, args->context); 11811da177e4SLinus Torvalds 11821da177e4SLinus Torvalds RESERVE_SPACE(12); 11831da177e4SLinus Torvalds WRITE64(args->offset); 11841da177e4SLinus Torvalds WRITE32(args->count); 1185d017931cSAndy Adamson hdr->nops++; 1186dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 11871da177e4SLinus Torvalds } 11881da177e4SLinus Torvalds 1189cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 11901da177e4SLinus Torvalds { 119197d312d0SManoj Naik uint32_t attrs[2] = { 119297d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 119397d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 119497d312d0SManoj Naik }; 11958687b63aSAl Viro __be32 *p; 11961da177e4SLinus Torvalds 11978ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 11981da177e4SLinus Torvalds WRITE32(OP_READDIR); 11991da177e4SLinus Torvalds WRITE64(readdir->cookie); 12008ae20abdSTrond Myklebust WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 12011da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 12021da177e4SLinus Torvalds WRITE32(readdir->count); 12031da177e4SLinus Torvalds WRITE32(2); 120497d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 120597d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 120697d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 120797d312d0SManoj Naik else 120897d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 120997d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 121097d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1211d017931cSAndy Adamson hdr->nops++; 1212dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 121344109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 121444109241SFred Isaman __func__, 1215eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1216eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1217eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1218eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1219eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 12201da177e4SLinus Torvalds } 12211da177e4SLinus Torvalds 1222cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 12231da177e4SLinus Torvalds { 12248687b63aSAl Viro __be32 *p; 12251da177e4SLinus Torvalds 12261da177e4SLinus Torvalds RESERVE_SPACE(4); 12271da177e4SLinus Torvalds WRITE32(OP_READLINK); 1228d017931cSAndy Adamson hdr->nops++; 1229dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 12301da177e4SLinus Torvalds } 12311da177e4SLinus Torvalds 1232cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12331da177e4SLinus Torvalds { 12348687b63aSAl Viro __be32 *p; 12351da177e4SLinus Torvalds 12361da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 12371da177e4SLinus Torvalds WRITE32(OP_REMOVE); 12381da177e4SLinus Torvalds WRITE32(name->len); 12391da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 1240d017931cSAndy Adamson hdr->nops++; 1241dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 12421da177e4SLinus Torvalds } 12431da177e4SLinus Torvalds 1244cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 12451da177e4SLinus Torvalds { 12468687b63aSAl Viro __be32 *p; 12471da177e4SLinus Torvalds 12481da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 12491da177e4SLinus Torvalds WRITE32(OP_RENAME); 12501da177e4SLinus Torvalds WRITE32(oldname->len); 12511da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 12521da177e4SLinus Torvalds 12531da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 12541da177e4SLinus Torvalds WRITE32(newname->len); 12551da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 1256d017931cSAndy Adamson hdr->nops++; 1257dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 12581da177e4SLinus Torvalds } 12591da177e4SLinus Torvalds 1260cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 12611da177e4SLinus Torvalds { 12628687b63aSAl Viro __be32 *p; 12631da177e4SLinus Torvalds 12641da177e4SLinus Torvalds RESERVE_SPACE(12); 12651da177e4SLinus Torvalds WRITE32(OP_RENEW); 12661da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 1267d017931cSAndy Adamson hdr->nops++; 1268dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 12691da177e4SLinus Torvalds } 12701da177e4SLinus Torvalds 1271cf8cdbe5SAndy Adamson static void 1272d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 127356ae19f3STrond Myklebust { 12748687b63aSAl Viro __be32 *p; 127556ae19f3STrond Myklebust 127656ae19f3STrond Myklebust RESERVE_SPACE(4); 127756ae19f3STrond Myklebust WRITE32(OP_RESTOREFH); 1278d017931cSAndy Adamson hdr->nops++; 1279dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 128056ae19f3STrond Myklebust } 128156ae19f3STrond Myklebust 128256ae19f3STrond Myklebust static int 1283d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 128423ec6965SJ. Bruce Fields { 12858687b63aSAl Viro __be32 *p; 128623ec6965SJ. Bruce Fields 12878ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 128823ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 12898ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 129023ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 129123ec6965SJ. Bruce Fields WRITE32(1); 129223ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 129323ec6965SJ. Bruce Fields if (arg->acl_len % 4) 129423ec6965SJ. Bruce Fields return -EINVAL; 129523ec6965SJ. Bruce Fields RESERVE_SPACE(4); 129623ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 129723ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1298d017931cSAndy Adamson hdr->nops++; 1299dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 130023ec6965SJ. Bruce Fields return 0; 130123ec6965SJ. Bruce Fields } 130223ec6965SJ. Bruce Fields 1303cf8cdbe5SAndy Adamson static void 1304d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 13051da177e4SLinus Torvalds { 13068687b63aSAl Viro __be32 *p; 13071da177e4SLinus Torvalds 13081da177e4SLinus Torvalds RESERVE_SPACE(4); 13091da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 1310d017931cSAndy Adamson hdr->nops++; 1311dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 13121da177e4SLinus Torvalds } 13131da177e4SLinus Torvalds 1314cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 13151da177e4SLinus Torvalds { 13168687b63aSAl Viro __be32 *p; 13171da177e4SLinus Torvalds 13188ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 13191da177e4SLinus Torvalds WRITE32(OP_SETATTR); 13208ae20abdSTrond Myklebust WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 1321d017931cSAndy Adamson hdr->nops++; 1322dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1323cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 13241da177e4SLinus Torvalds } 13251da177e4SLinus Torvalds 1326cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 13271da177e4SLinus Torvalds { 13288687b63aSAl Viro __be32 *p; 13291da177e4SLinus Torvalds 13308ae20abdSTrond Myklebust RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 13311da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 13328ae20abdSTrond Myklebust WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 13331da177e4SLinus Torvalds 13341da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 13351da177e4SLinus Torvalds RESERVE_SPACE(4); 13361da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 13371da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 13381da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 13391da177e4SLinus Torvalds RESERVE_SPACE(4); 13401da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 1341d017931cSAndy Adamson hdr->nops++; 1342dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 13431da177e4SLinus Torvalds } 13441da177e4SLinus Torvalds 1345cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 13461da177e4SLinus Torvalds { 13478687b63aSAl Viro __be32 *p; 13481da177e4SLinus Torvalds 13498ae20abdSTrond Myklebust RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 13501da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 13511da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 13528ae20abdSTrond Myklebust WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1353d017931cSAndy Adamson hdr->nops++; 1354dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 13551da177e4SLinus Torvalds } 13561da177e4SLinus Torvalds 1357cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 13581da177e4SLinus Torvalds { 13598687b63aSAl Viro __be32 *p; 13601da177e4SLinus Torvalds 13611da177e4SLinus Torvalds RESERVE_SPACE(4); 13621da177e4SLinus Torvalds WRITE32(OP_WRITE); 13631da177e4SLinus Torvalds 13641da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13651da177e4SLinus Torvalds 13661da177e4SLinus Torvalds RESERVE_SPACE(16); 13671da177e4SLinus Torvalds WRITE64(args->offset); 13681da177e4SLinus Torvalds WRITE32(args->stable); 13691da177e4SLinus Torvalds WRITE32(args->count); 13701da177e4SLinus Torvalds 13711da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1372d017931cSAndy Adamson hdr->nops++; 1373dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 13741da177e4SLinus Torvalds } 13751da177e4SLinus Torvalds 1376cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 13771da177e4SLinus Torvalds { 13788687b63aSAl Viro __be32 *p; 13791da177e4SLinus Torvalds 13808ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 13811da177e4SLinus Torvalds 13821da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 13838ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1384d017931cSAndy Adamson hdr->nops++; 1385dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 13861da177e4SLinus Torvalds } 13871da177e4SLinus Torvalds /* 13881da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 13891da177e4SLinus Torvalds */ 13901da177e4SLinus Torvalds 13911da177e4SLinus Torvalds /* 13921da177e4SLinus Torvalds * Encode an ACCESS request 13931da177e4SLinus Torvalds */ 13948687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 13951da177e4SLinus Torvalds { 13961da177e4SLinus Torvalds struct xdr_stream xdr; 13971da177e4SLinus Torvalds struct compound_hdr hdr = { 1398d017931cSAndy Adamson .nops = 0, 13991da177e4SLinus Torvalds }; 14001da177e4SLinus Torvalds 14011da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14020c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1403cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1404cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1405cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1406d017931cSAndy Adamson encode_nops(&hdr); 1407cf8cdbe5SAndy Adamson return 0; 14081da177e4SLinus Torvalds } 14091da177e4SLinus Torvalds 14101da177e4SLinus Torvalds /* 14111da177e4SLinus Torvalds * Encode LOOKUP request 14121da177e4SLinus Torvalds */ 14138687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 14141da177e4SLinus Torvalds { 14151da177e4SLinus Torvalds struct xdr_stream xdr; 14161da177e4SLinus Torvalds struct compound_hdr hdr = { 1417d017931cSAndy Adamson .nops = 0, 14181da177e4SLinus Torvalds }; 14191da177e4SLinus Torvalds 14201da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14210c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1422cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1423cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1424cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1425cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1426d017931cSAndy Adamson encode_nops(&hdr); 1427cf8cdbe5SAndy Adamson return 0; 14281da177e4SLinus Torvalds } 14291da177e4SLinus Torvalds 14301da177e4SLinus Torvalds /* 14311da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 14321da177e4SLinus Torvalds */ 14338687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 14341da177e4SLinus Torvalds { 14351da177e4SLinus Torvalds struct xdr_stream xdr; 14361da177e4SLinus Torvalds struct compound_hdr hdr = { 1437d017931cSAndy Adamson .nops = 0, 14381da177e4SLinus Torvalds }; 14391da177e4SLinus Torvalds 14401da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14410c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1442cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1443cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1444cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1445d017931cSAndy Adamson encode_nops(&hdr); 1446cf8cdbe5SAndy Adamson return 0; 14471da177e4SLinus Torvalds } 14481da177e4SLinus Torvalds 14491da177e4SLinus Torvalds /* 14501da177e4SLinus Torvalds * Encode REMOVE request 14511da177e4SLinus Torvalds */ 14524fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 14531da177e4SLinus Torvalds { 14541da177e4SLinus Torvalds struct xdr_stream xdr; 14551da177e4SLinus Torvalds struct compound_hdr hdr = { 1456d017931cSAndy Adamson .nops = 0, 14571da177e4SLinus Torvalds }; 14581da177e4SLinus Torvalds 14591da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14600c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1461cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1462cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1463cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1464d017931cSAndy Adamson encode_nops(&hdr); 1465cf8cdbe5SAndy Adamson return 0; 14661da177e4SLinus Torvalds } 14671da177e4SLinus Torvalds 14681da177e4SLinus Torvalds /* 14691da177e4SLinus Torvalds * Encode RENAME request 14701da177e4SLinus Torvalds */ 14718687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 14721da177e4SLinus Torvalds { 14731da177e4SLinus Torvalds struct xdr_stream xdr; 14741da177e4SLinus Torvalds struct compound_hdr hdr = { 1475d017931cSAndy Adamson .nops = 0, 14761da177e4SLinus Torvalds }; 14771da177e4SLinus Torvalds 14781da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14790c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1480cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1481cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1482cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1483cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1484cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1485cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1486cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1487d017931cSAndy Adamson encode_nops(&hdr); 1488cf8cdbe5SAndy Adamson return 0; 14891da177e4SLinus Torvalds } 14901da177e4SLinus Torvalds 14911da177e4SLinus Torvalds /* 14921da177e4SLinus Torvalds * Encode LINK request 14931da177e4SLinus Torvalds */ 14948687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 14951da177e4SLinus Torvalds { 14961da177e4SLinus Torvalds struct xdr_stream xdr; 14971da177e4SLinus Torvalds struct compound_hdr hdr = { 1498d017931cSAndy Adamson .nops = 0, 14991da177e4SLinus Torvalds }; 15001da177e4SLinus Torvalds 15011da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15020c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1503cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1504cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1505cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1506cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1507cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1508cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1509cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1510d017931cSAndy Adamson encode_nops(&hdr); 1511cf8cdbe5SAndy Adamson return 0; 15121da177e4SLinus Torvalds } 15131da177e4SLinus Torvalds 15141da177e4SLinus Torvalds /* 15151da177e4SLinus Torvalds * Encode CREATE request 15161da177e4SLinus Torvalds */ 15178687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 15181da177e4SLinus Torvalds { 15191da177e4SLinus Torvalds struct xdr_stream xdr; 15201da177e4SLinus Torvalds struct compound_hdr hdr = { 1521d017931cSAndy Adamson .nops = 0, 15221da177e4SLinus Torvalds }; 15231da177e4SLinus Torvalds 15241da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15250c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1526cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1527cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1528cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1529cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1530cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1531cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1532cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1533d017931cSAndy Adamson encode_nops(&hdr); 1534cf8cdbe5SAndy Adamson return 0; 15351da177e4SLinus Torvalds } 15361da177e4SLinus Torvalds 15371da177e4SLinus Torvalds /* 15381da177e4SLinus Torvalds * Encode SYMLINK request 15391da177e4SLinus Torvalds */ 15408687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 15411da177e4SLinus Torvalds { 15421da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 15431da177e4SLinus Torvalds } 15441da177e4SLinus Torvalds 15451da177e4SLinus Torvalds /* 15461da177e4SLinus Torvalds * Encode GETATTR request 15471da177e4SLinus Torvalds */ 15488687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 15491da177e4SLinus Torvalds { 15501da177e4SLinus Torvalds struct xdr_stream xdr; 15511da177e4SLinus Torvalds struct compound_hdr hdr = { 1552d017931cSAndy Adamson .nops = 0, 15531da177e4SLinus Torvalds }; 15541da177e4SLinus Torvalds 15551da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15560c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1557cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1558cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1559d017931cSAndy Adamson encode_nops(&hdr); 1560cf8cdbe5SAndy Adamson return 0; 15611da177e4SLinus Torvalds } 15621da177e4SLinus Torvalds 15631da177e4SLinus Torvalds /* 15641da177e4SLinus Torvalds * Encode a CLOSE request 15651da177e4SLinus Torvalds */ 15668687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 15671da177e4SLinus Torvalds { 15681da177e4SLinus Torvalds struct xdr_stream xdr; 15691da177e4SLinus Torvalds struct compound_hdr hdr = { 1570d017931cSAndy Adamson .nops = 0, 15711da177e4SLinus Torvalds }; 15721da177e4SLinus Torvalds 15731da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15740c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1575cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1576cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1577cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1578d017931cSAndy Adamson encode_nops(&hdr); 1579cf8cdbe5SAndy Adamson return 0; 15801da177e4SLinus Torvalds } 15811da177e4SLinus Torvalds 15821da177e4SLinus Torvalds /* 15831da177e4SLinus Torvalds * Encode an OPEN request 15841da177e4SLinus Torvalds */ 15858687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 15861da177e4SLinus Torvalds { 15871da177e4SLinus Torvalds struct xdr_stream xdr; 15881da177e4SLinus Torvalds struct compound_hdr hdr = { 1589d017931cSAndy Adamson .nops = 0, 15901da177e4SLinus Torvalds }; 15911da177e4SLinus Torvalds 15921da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15930c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1594cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1595cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1596cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1597cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1598cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1599cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1600cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1601d017931cSAndy Adamson encode_nops(&hdr); 1602cf8cdbe5SAndy Adamson return 0; 16031da177e4SLinus Torvalds } 16041da177e4SLinus Torvalds 16051da177e4SLinus Torvalds /* 16061da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 16071da177e4SLinus Torvalds */ 16088687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 16091da177e4SLinus Torvalds { 16101da177e4SLinus Torvalds struct xdr_stream xdr; 16111da177e4SLinus Torvalds struct compound_hdr hdr = { 1612d017931cSAndy Adamson .nops = 0, 16131da177e4SLinus Torvalds }; 16141da177e4SLinus Torvalds 16151da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16160c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1617cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1618cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1619d017931cSAndy Adamson encode_nops(&hdr); 1620cf8cdbe5SAndy Adamson return 0; 16211da177e4SLinus Torvalds } 16221da177e4SLinus Torvalds 16231da177e4SLinus Torvalds /* 16241da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 16251da177e4SLinus Torvalds */ 16268687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 16271da177e4SLinus Torvalds { 16281da177e4SLinus Torvalds struct xdr_stream xdr; 16291da177e4SLinus Torvalds struct compound_hdr hdr = { 1630d017931cSAndy Adamson .nops = 0, 16311da177e4SLinus Torvalds }; 16321da177e4SLinus Torvalds 16331da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16340c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1635cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1636cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1637cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1638d017931cSAndy Adamson encode_nops(&hdr); 1639cf8cdbe5SAndy Adamson return 0; 16401da177e4SLinus Torvalds } 16411da177e4SLinus Torvalds 16421da177e4SLinus Torvalds /* 16431da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 16441da177e4SLinus Torvalds */ 16458687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 16461da177e4SLinus Torvalds { 16471da177e4SLinus Torvalds struct xdr_stream xdr; 16481da177e4SLinus Torvalds struct compound_hdr hdr = { 1649d017931cSAndy Adamson .nops = 0, 16501da177e4SLinus Torvalds }; 16511da177e4SLinus Torvalds 16521da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16530c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1654cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1655cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1656cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1657d017931cSAndy Adamson encode_nops(&hdr); 1658cf8cdbe5SAndy Adamson return 0; 16591da177e4SLinus Torvalds } 16601da177e4SLinus Torvalds 16611da177e4SLinus Torvalds /* 16621da177e4SLinus Torvalds * Encode a LOCK request 16631da177e4SLinus Torvalds */ 16648687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 16651da177e4SLinus Torvalds { 16661da177e4SLinus Torvalds struct xdr_stream xdr; 16671da177e4SLinus Torvalds struct compound_hdr hdr = { 1668d017931cSAndy Adamson .nops = 0, 16691da177e4SLinus Torvalds }; 16701da177e4SLinus Torvalds 16711da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16720c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1673cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1674cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 1675d017931cSAndy Adamson encode_nops(&hdr); 1676cf8cdbe5SAndy Adamson return 0; 16771da177e4SLinus Torvalds } 16781da177e4SLinus Torvalds 16791da177e4SLinus Torvalds /* 16801da177e4SLinus Torvalds * Encode a LOCKT request 16811da177e4SLinus Torvalds */ 16828687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 16831da177e4SLinus Torvalds { 16841da177e4SLinus Torvalds struct xdr_stream xdr; 16851da177e4SLinus Torvalds struct compound_hdr hdr = { 1686d017931cSAndy Adamson .nops = 0, 16871da177e4SLinus Torvalds }; 16881da177e4SLinus Torvalds 16891da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16900c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1691cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1692cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 1693d017931cSAndy Adamson encode_nops(&hdr); 1694cf8cdbe5SAndy Adamson return 0; 16951da177e4SLinus Torvalds } 16961da177e4SLinus Torvalds 16971da177e4SLinus Torvalds /* 16981da177e4SLinus Torvalds * Encode a LOCKU request 16991da177e4SLinus Torvalds */ 17008687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 17011da177e4SLinus Torvalds { 17021da177e4SLinus Torvalds struct xdr_stream xdr; 17031da177e4SLinus Torvalds struct compound_hdr hdr = { 1704d017931cSAndy Adamson .nops = 0, 17051da177e4SLinus Torvalds }; 17061da177e4SLinus Torvalds 17071da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17080c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1709cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1710cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 1711d017931cSAndy Adamson encode_nops(&hdr); 1712cf8cdbe5SAndy Adamson return 0; 17131da177e4SLinus Torvalds } 17141da177e4SLinus Torvalds 17151da177e4SLinus Torvalds /* 17161da177e4SLinus Torvalds * Encode a READLINK request 17171da177e4SLinus Torvalds */ 17188687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 17191da177e4SLinus Torvalds { 17201da177e4SLinus Torvalds struct xdr_stream xdr; 17211da177e4SLinus Torvalds struct compound_hdr hdr = { 1722d017931cSAndy Adamson .nops = 0, 17231da177e4SLinus Torvalds }; 17241da177e4SLinus Torvalds 17251da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17260c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1727cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1728cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 1729e3a535e1STrond Myklebust 173028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 1731e3a535e1STrond Myklebust args->pgbase, args->pglen); 1732d017931cSAndy Adamson encode_nops(&hdr); 1733cf8cdbe5SAndy Adamson return 0; 17341da177e4SLinus Torvalds } 17351da177e4SLinus Torvalds 17361da177e4SLinus Torvalds /* 17371da177e4SLinus Torvalds * Encode a READDIR request 17381da177e4SLinus Torvalds */ 17398687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 17401da177e4SLinus Torvalds { 17411da177e4SLinus Torvalds struct xdr_stream xdr; 17421da177e4SLinus Torvalds struct compound_hdr hdr = { 1743d017931cSAndy Adamson .nops = 0, 17441da177e4SLinus Torvalds }; 17451da177e4SLinus Torvalds 17461da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17470c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1748cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1749cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 1750d6ac02dfSTrond Myklebust 175128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 1752d6ac02dfSTrond Myklebust args->pgbase, args->count); 1753d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 175428f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 1755d6ac02dfSTrond Myklebust args->pgbase, args->count); 1756d017931cSAndy Adamson encode_nops(&hdr); 1757cf8cdbe5SAndy Adamson return 0; 17581da177e4SLinus Torvalds } 17591da177e4SLinus Torvalds 17601da177e4SLinus Torvalds /* 17611da177e4SLinus Torvalds * Encode a READ request 17621da177e4SLinus Torvalds */ 17638687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 17641da177e4SLinus Torvalds { 17651da177e4SLinus Torvalds struct xdr_stream xdr; 17661da177e4SLinus Torvalds struct compound_hdr hdr = { 1767d017931cSAndy Adamson .nops = 0, 17681da177e4SLinus Torvalds }; 17691da177e4SLinus Torvalds 17701da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17710c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1772cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1773cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 17741da177e4SLinus Torvalds 177528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 17761da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 17774f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 1778d017931cSAndy Adamson encode_nops(&hdr); 1779cf8cdbe5SAndy Adamson return 0; 17801da177e4SLinus Torvalds } 17811da177e4SLinus Torvalds 17821da177e4SLinus Torvalds /* 17831da177e4SLinus Torvalds * Encode an SETATTR request 17841da177e4SLinus Torvalds */ 17858687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 17861da177e4SLinus Torvalds { 17871da177e4SLinus Torvalds struct xdr_stream xdr; 17881da177e4SLinus Torvalds struct compound_hdr hdr = { 1789d017931cSAndy Adamson .nops = 0, 17901da177e4SLinus Torvalds }; 17911da177e4SLinus Torvalds 17921da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17930c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1794cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1795cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 1796cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1797d017931cSAndy Adamson encode_nops(&hdr); 1798cf8cdbe5SAndy Adamson return 0; 17991da177e4SLinus Torvalds } 18001da177e4SLinus Torvalds 18011da177e4SLinus Torvalds /* 1802029d105eSJ. Bruce Fields * Encode a GETACL request 1803029d105eSJ. Bruce Fields */ 1804029d105eSJ. Bruce Fields static int 18058687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 1806029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 1807029d105eSJ. Bruce Fields { 1808029d105eSJ. Bruce Fields struct xdr_stream xdr; 1809029d105eSJ. Bruce Fields struct compound_hdr hdr = { 1810d017931cSAndy Adamson .nops = 0, 1811029d105eSJ. Bruce Fields }; 181228f56694SBenny Halevy uint32_t replen; 1813029d105eSJ. Bruce Fields 1814029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18150c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1816cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 181728f56694SBenny Halevy replen = hdr.replen + nfs4_fattr_bitmap_maxsz + 1; 1818cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 1819cf8cdbe5SAndy Adamson 182028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 1821029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 1822d017931cSAndy Adamson encode_nops(&hdr); 1823cf8cdbe5SAndy Adamson return 0; 1824029d105eSJ. Bruce Fields } 1825029d105eSJ. Bruce Fields 1826029d105eSJ. Bruce Fields /* 18271da177e4SLinus Torvalds * Encode a WRITE request 18281da177e4SLinus Torvalds */ 18298687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 18301da177e4SLinus Torvalds { 18311da177e4SLinus Torvalds struct xdr_stream xdr; 18321da177e4SLinus Torvalds struct compound_hdr hdr = { 1833d017931cSAndy Adamson .nops = 0, 18341da177e4SLinus Torvalds }; 18351da177e4SLinus Torvalds 18361da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18370c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1838cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1839cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 18404f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 1841cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1842d017931cSAndy Adamson encode_nops(&hdr); 1843cf8cdbe5SAndy Adamson return 0; 18441da177e4SLinus Torvalds } 18451da177e4SLinus Torvalds 18461da177e4SLinus Torvalds /* 18471da177e4SLinus Torvalds * a COMMIT request 18481da177e4SLinus Torvalds */ 18498687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 18501da177e4SLinus Torvalds { 18511da177e4SLinus Torvalds struct xdr_stream xdr; 18521da177e4SLinus Torvalds struct compound_hdr hdr = { 1853d017931cSAndy Adamson .nops = 0, 18541da177e4SLinus Torvalds }; 18551da177e4SLinus Torvalds 18561da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18570c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1858cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1859cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 1860cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1861d017931cSAndy Adamson encode_nops(&hdr); 1862cf8cdbe5SAndy Adamson return 0; 18631da177e4SLinus Torvalds } 18641da177e4SLinus Torvalds 18651da177e4SLinus Torvalds /* 18661da177e4SLinus Torvalds * FSINFO request 18671da177e4SLinus Torvalds */ 18688687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 18691da177e4SLinus Torvalds { 18701da177e4SLinus Torvalds struct xdr_stream xdr; 18711da177e4SLinus Torvalds struct compound_hdr hdr = { 1872d017931cSAndy Adamson .nops = 0, 18731da177e4SLinus Torvalds }; 18741da177e4SLinus Torvalds 18751da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18760c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1877cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1878cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 1879d017931cSAndy Adamson encode_nops(&hdr); 1880cf8cdbe5SAndy Adamson return 0; 18811da177e4SLinus Torvalds } 18821da177e4SLinus Torvalds 18831da177e4SLinus Torvalds /* 18841da177e4SLinus Torvalds * a PATHCONF request 18851da177e4SLinus Torvalds */ 18868687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 18871da177e4SLinus Torvalds { 18881da177e4SLinus Torvalds struct xdr_stream xdr; 18891da177e4SLinus Torvalds struct compound_hdr hdr = { 1890d017931cSAndy Adamson .nops = 0, 18911da177e4SLinus Torvalds }; 18921da177e4SLinus Torvalds 18931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18940c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1895cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1896cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 1897d017931cSAndy Adamson &hdr); 1898d017931cSAndy Adamson encode_nops(&hdr); 1899cf8cdbe5SAndy Adamson return 0; 19001da177e4SLinus Torvalds } 19011da177e4SLinus Torvalds 19021da177e4SLinus Torvalds /* 19031da177e4SLinus Torvalds * a STATFS request 19041da177e4SLinus Torvalds */ 19058687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 19061da177e4SLinus Torvalds { 19071da177e4SLinus Torvalds struct xdr_stream xdr; 19081da177e4SLinus Torvalds struct compound_hdr hdr = { 1909d017931cSAndy Adamson .nops = 0, 19101da177e4SLinus Torvalds }; 19111da177e4SLinus Torvalds 19121da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19130c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1914cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1915cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 1916d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 1917d017931cSAndy Adamson encode_nops(&hdr); 1918cf8cdbe5SAndy Adamson return 0; 19191da177e4SLinus Torvalds } 19201da177e4SLinus Torvalds 19211da177e4SLinus Torvalds /* 19221da177e4SLinus Torvalds * GETATTR_BITMAP request 19231da177e4SLinus Torvalds */ 192443652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 192543652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 19261da177e4SLinus Torvalds { 19271da177e4SLinus Torvalds struct xdr_stream xdr; 19281da177e4SLinus Torvalds struct compound_hdr hdr = { 1929d017931cSAndy Adamson .nops = 0, 19301da177e4SLinus Torvalds }; 19311da177e4SLinus Torvalds 19321da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19330c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 193443652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 1935cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 19361da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 19371da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 1938d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 1939d017931cSAndy Adamson encode_nops(&hdr); 1940cf8cdbe5SAndy Adamson return 0; 19411da177e4SLinus Torvalds } 19421da177e4SLinus Torvalds 19431da177e4SLinus Torvalds /* 19441da177e4SLinus Torvalds * a RENEW request 19451da177e4SLinus Torvalds */ 19468687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 19471da177e4SLinus Torvalds { 19481da177e4SLinus Torvalds struct xdr_stream xdr; 19491da177e4SLinus Torvalds struct compound_hdr hdr = { 1950d017931cSAndy Adamson .nops = 0, 19511da177e4SLinus Torvalds }; 19521da177e4SLinus Torvalds 19531da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19540c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1955cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 1956d017931cSAndy Adamson encode_nops(&hdr); 1957cf8cdbe5SAndy Adamson return 0; 19581da177e4SLinus Torvalds } 19591da177e4SLinus Torvalds 19601da177e4SLinus Torvalds /* 19611da177e4SLinus Torvalds * a SETCLIENTID request 19621da177e4SLinus Torvalds */ 19638687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 19641da177e4SLinus Torvalds { 19651da177e4SLinus Torvalds struct xdr_stream xdr; 19661da177e4SLinus Torvalds struct compound_hdr hdr = { 1967d017931cSAndy Adamson .nops = 0, 19681da177e4SLinus Torvalds }; 19691da177e4SLinus Torvalds 19701da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19710c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1972cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 1973d017931cSAndy Adamson encode_nops(&hdr); 1974cf8cdbe5SAndy Adamson return 0; 19751da177e4SLinus Torvalds } 19761da177e4SLinus Torvalds 19771da177e4SLinus Torvalds /* 19781da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 19791da177e4SLinus Torvalds */ 19808687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 19811da177e4SLinus Torvalds { 19821da177e4SLinus Torvalds struct xdr_stream xdr; 19831da177e4SLinus Torvalds struct compound_hdr hdr = { 1984d017931cSAndy Adamson .nops = 0, 19851da177e4SLinus Torvalds }; 19861da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 19871da177e4SLinus Torvalds 19881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19890c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1990cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 1991cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1992cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 1993d017931cSAndy Adamson encode_nops(&hdr); 1994cf8cdbe5SAndy Adamson return 0; 19951da177e4SLinus Torvalds } 19961da177e4SLinus Torvalds 19971da177e4SLinus Torvalds /* 19981da177e4SLinus Torvalds * DELEGRETURN request 19991da177e4SLinus Torvalds */ 20008687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 20011da177e4SLinus Torvalds { 20021da177e4SLinus Torvalds struct xdr_stream xdr; 20031da177e4SLinus Torvalds struct compound_hdr hdr = { 2004d017931cSAndy Adamson .nops = 0, 20051da177e4SLinus Torvalds }; 20061da177e4SLinus Torvalds 20071da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20080c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2009cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2010cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2011cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2012d017931cSAndy Adamson encode_nops(&hdr); 2013cf8cdbe5SAndy Adamson return 0; 20141da177e4SLinus Torvalds } 20151da177e4SLinus Torvalds 20161da177e4SLinus Torvalds /* 2017683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2018683b57b4STrond Myklebust */ 20198687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2020683b57b4STrond Myklebust { 2021683b57b4STrond Myklebust struct xdr_stream xdr; 2022683b57b4STrond Myklebust struct compound_hdr hdr = { 2023d017931cSAndy Adamson .nops = 0, 2024683b57b4STrond Myklebust }; 202528f56694SBenny Halevy uint32_t replen; 2026683b57b4STrond Myklebust 2027683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20280c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2029cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2030cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 203128f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2032cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2033cf8cdbe5SAndy Adamson 203428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2035683b57b4STrond Myklebust 0, PAGE_SIZE); 2036d017931cSAndy Adamson encode_nops(&hdr); 2037cf8cdbe5SAndy Adamson return 0; 2038683b57b4STrond Myklebust } 2039683b57b4STrond Myklebust 2040683b57b4STrond Myklebust /* 20411da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 20421da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 20431da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 20441da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 20451da177e4SLinus Torvalds * 20461da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 20471da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 20481da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 20491da177e4SLinus Torvalds */ 20501da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 20511da177e4SLinus Torvalds #define READ64(x) do { \ 20521da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 20531da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 20541da177e4SLinus Torvalds } while (0) 20551da177e4SLinus Torvalds #define READTIME(x) do { \ 20561da177e4SLinus Torvalds p++; \ 20571da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 20581da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 20591da177e4SLinus Torvalds } while (0) 20601da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 20611da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 20621da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 20631da177e4SLinus Torvalds } while (0) 20641da177e4SLinus Torvalds 20651da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 20661da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2067e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2068fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 20693110ff80SHarvey Harrison " buffer\n", __func__); \ 2070fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 20713110ff80SHarvey Harrison __func__, xdr->p, nbytes, xdr->end); \ 20721da177e4SLinus Torvalds return -EIO; \ 20731da177e4SLinus Torvalds } \ 20741da177e4SLinus Torvalds } while (0) 20751da177e4SLinus Torvalds 2076683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 20771da177e4SLinus Torvalds { 20788687b63aSAl Viro __be32 *p; 20791da177e4SLinus Torvalds 20801da177e4SLinus Torvalds READ_BUF(4); 20811da177e4SLinus Torvalds READ32(*len); 20821da177e4SLinus Torvalds READ_BUF(*len); 20831da177e4SLinus Torvalds *string = (char *)p; 20841da177e4SLinus Torvalds return 0; 20851da177e4SLinus Torvalds } 20861da177e4SLinus Torvalds 20871da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 20881da177e4SLinus Torvalds { 20898687b63aSAl Viro __be32 *p; 20901da177e4SLinus Torvalds 20911da177e4SLinus Torvalds READ_BUF(8); 20921da177e4SLinus Torvalds READ32(hdr->status); 20931da177e4SLinus Torvalds READ32(hdr->taglen); 20941da177e4SLinus Torvalds 20951da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 20961da177e4SLinus Torvalds hdr->tag = (char *)p; 20971da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 20981da177e4SLinus Torvalds READ32(hdr->nops); 2099aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2100aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 21011da177e4SLinus Torvalds return 0; 21021da177e4SLinus Torvalds } 21031da177e4SLinus Torvalds 21041da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 21051da177e4SLinus Torvalds { 21068687b63aSAl Viro __be32 *p; 21071da177e4SLinus Torvalds uint32_t opnum; 21081da177e4SLinus Torvalds int32_t nfserr; 21091da177e4SLinus Torvalds 21101da177e4SLinus Torvalds READ_BUF(8); 21111da177e4SLinus Torvalds READ32(opnum); 21121da177e4SLinus Torvalds if (opnum != expected) { 2113fe82a183SChuck Lever dprintk("nfs: Server returned operation" 21141da177e4SLinus Torvalds " %d but we issued a request for %d\n", 21151da177e4SLinus Torvalds opnum, expected); 21161da177e4SLinus Torvalds return -EIO; 21171da177e4SLinus Torvalds } 21181da177e4SLinus Torvalds READ32(nfserr); 21191da177e4SLinus Torvalds if (nfserr != NFS_OK) 2120856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 21211da177e4SLinus Torvalds return 0; 21221da177e4SLinus Torvalds } 21231da177e4SLinus Torvalds 21241da177e4SLinus Torvalds /* Dummy routine */ 2125adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 21261da177e4SLinus Torvalds { 21278687b63aSAl Viro __be32 *p; 2128683b57b4STrond Myklebust unsigned int strlen; 21291da177e4SLinus Torvalds char *str; 21301da177e4SLinus Torvalds 21311da177e4SLinus Torvalds READ_BUF(12); 21321da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 21331da177e4SLinus Torvalds } 21341da177e4SLinus Torvalds 21351da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 21361da177e4SLinus Torvalds { 21378687b63aSAl Viro uint32_t bmlen; 21388687b63aSAl Viro __be32 *p; 21391da177e4SLinus Torvalds 21401da177e4SLinus Torvalds READ_BUF(4); 21411da177e4SLinus Torvalds READ32(bmlen); 21421da177e4SLinus Torvalds 21431da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 21441da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 21451da177e4SLinus Torvalds if (bmlen > 0) { 21461da177e4SLinus Torvalds READ32(bitmap[0]); 21471da177e4SLinus Torvalds if (bmlen > 1) 21481da177e4SLinus Torvalds READ32(bitmap[1]); 21491da177e4SLinus Torvalds } 21501da177e4SLinus Torvalds return 0; 21511da177e4SLinus Torvalds } 21521da177e4SLinus Torvalds 21538687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 21541da177e4SLinus Torvalds { 21558687b63aSAl Viro __be32 *p; 21561da177e4SLinus Torvalds 21571da177e4SLinus Torvalds READ_BUF(4); 21581da177e4SLinus Torvalds READ32(*attrlen); 21591da177e4SLinus Torvalds *savep = xdr->p; 21601da177e4SLinus Torvalds return 0; 21611da177e4SLinus Torvalds } 21621da177e4SLinus Torvalds 21631da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 21641da177e4SLinus Torvalds { 21651da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 21661da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 21671da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 21681da177e4SLinus Torvalds } else 21691da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 217044109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 21711da177e4SLinus Torvalds return 0; 21721da177e4SLinus Torvalds } 21731da177e4SLinus Torvalds 21741da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 21751da177e4SLinus Torvalds { 21768687b63aSAl Viro __be32 *p; 2177409924e4STrond Myklebust int ret = 0; 21781da177e4SLinus Torvalds 21791da177e4SLinus Torvalds *type = 0; 21801da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 21811da177e4SLinus Torvalds return -EIO; 21821da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 21831da177e4SLinus Torvalds READ_BUF(4); 21841da177e4SLinus Torvalds READ32(*type); 21851da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 21863110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 21871da177e4SLinus Torvalds return -EIO; 21881da177e4SLinus Torvalds } 21891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2190409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 21911da177e4SLinus Torvalds } 2192bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2193409924e4STrond Myklebust return ret; 21941da177e4SLinus Torvalds } 21951da177e4SLinus Torvalds 21961da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 21971da177e4SLinus Torvalds { 21988687b63aSAl Viro __be32 *p; 2199409924e4STrond Myklebust int ret = 0; 22001da177e4SLinus Torvalds 22011da177e4SLinus Torvalds *change = 0; 22021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 22031da177e4SLinus Torvalds return -EIO; 22041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 22051da177e4SLinus Torvalds READ_BUF(8); 22061da177e4SLinus Torvalds READ64(*change); 22071da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2208409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 22091da177e4SLinus Torvalds } 22103110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 22111da177e4SLinus Torvalds (unsigned long long)*change); 2212409924e4STrond Myklebust return ret; 22131da177e4SLinus Torvalds } 22141da177e4SLinus Torvalds 22151da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 22161da177e4SLinus Torvalds { 22178687b63aSAl Viro __be32 *p; 2218409924e4STrond Myklebust int ret = 0; 22191da177e4SLinus Torvalds 22201da177e4SLinus Torvalds *size = 0; 22211da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 22221da177e4SLinus Torvalds return -EIO; 22231da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 22241da177e4SLinus Torvalds READ_BUF(8); 22251da177e4SLinus Torvalds READ64(*size); 22261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2227409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 22281da177e4SLinus Torvalds } 22293110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2230409924e4STrond Myklebust return ret; 22311da177e4SLinus Torvalds } 22321da177e4SLinus Torvalds 22331da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22341da177e4SLinus Torvalds { 22358687b63aSAl Viro __be32 *p; 22361da177e4SLinus Torvalds 22371da177e4SLinus Torvalds *res = 0; 22381da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 22391da177e4SLinus Torvalds return -EIO; 22401da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 22411da177e4SLinus Torvalds READ_BUF(4); 22421da177e4SLinus Torvalds READ32(*res); 22431da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 22441da177e4SLinus Torvalds } 22453110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 22461da177e4SLinus Torvalds return 0; 22471da177e4SLinus Torvalds } 22481da177e4SLinus Torvalds 22491da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22501da177e4SLinus Torvalds { 22518687b63aSAl Viro __be32 *p; 22521da177e4SLinus Torvalds 22531da177e4SLinus Torvalds *res = 0; 22541da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 22551da177e4SLinus Torvalds return -EIO; 22561da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 22571da177e4SLinus Torvalds READ_BUF(4); 22581da177e4SLinus Torvalds READ32(*res); 22591da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 22601da177e4SLinus Torvalds } 22613110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 22621da177e4SLinus Torvalds return 0; 22631da177e4SLinus Torvalds } 22641da177e4SLinus Torvalds 22658b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 22661da177e4SLinus Torvalds { 22678687b63aSAl Viro __be32 *p; 2268409924e4STrond Myklebust int ret = 0; 22691da177e4SLinus Torvalds 22701da177e4SLinus Torvalds fsid->major = 0; 22711da177e4SLinus Torvalds fsid->minor = 0; 22721da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 22731da177e4SLinus Torvalds return -EIO; 22741da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 22751da177e4SLinus Torvalds READ_BUF(16); 22761da177e4SLinus Torvalds READ64(fsid->major); 22771da177e4SLinus Torvalds READ64(fsid->minor); 22781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2279409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 22801da177e4SLinus Torvalds } 22813110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 22821da177e4SLinus Torvalds (unsigned long long)fsid->major, 22831da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2284409924e4STrond Myklebust return ret; 22851da177e4SLinus Torvalds } 22861da177e4SLinus Torvalds 22871da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22881da177e4SLinus Torvalds { 22898687b63aSAl Viro __be32 *p; 22901da177e4SLinus Torvalds 22911da177e4SLinus Torvalds *res = 60; 22921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 22931da177e4SLinus Torvalds return -EIO; 22941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 22951da177e4SLinus Torvalds READ_BUF(4); 22961da177e4SLinus Torvalds READ32(*res); 22971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 22981da177e4SLinus Torvalds } 22993110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 23001da177e4SLinus Torvalds return 0; 23011da177e4SLinus Torvalds } 23021da177e4SLinus Torvalds 23031da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23041da177e4SLinus Torvalds { 23058687b63aSAl Viro __be32 *p; 23061da177e4SLinus Torvalds 23071da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 23081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 23091da177e4SLinus Torvalds return -EIO; 23101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 23111da177e4SLinus Torvalds READ_BUF(4); 23121da177e4SLinus Torvalds READ32(*res); 23131da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 23141da177e4SLinus Torvalds } 23153110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 23161da177e4SLinus Torvalds return 0; 23171da177e4SLinus Torvalds } 23181da177e4SLinus Torvalds 23191da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 23201da177e4SLinus Torvalds { 23218687b63aSAl Viro __be32 *p; 2322409924e4STrond Myklebust int ret = 0; 23231da177e4SLinus Torvalds 23241da177e4SLinus Torvalds *fileid = 0; 23251da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 23261da177e4SLinus Torvalds return -EIO; 23271da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 23281da177e4SLinus Torvalds READ_BUF(8); 23291da177e4SLinus Torvalds READ64(*fileid); 23301da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2331409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 23321da177e4SLinus Torvalds } 23333110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2334409924e4STrond Myklebust return ret; 23351da177e4SLinus Torvalds } 23361da177e4SLinus Torvalds 233799baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 233899baf625SManoj Naik { 23398687b63aSAl Viro __be32 *p; 2340409924e4STrond Myklebust int ret = 0; 234199baf625SManoj Naik 234299baf625SManoj Naik *fileid = 0; 234399baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 234499baf625SManoj Naik return -EIO; 234599baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 234699baf625SManoj Naik READ_BUF(8); 234799baf625SManoj Naik READ64(*fileid); 234899baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2349409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 235099baf625SManoj Naik } 23513110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2352409924e4STrond Myklebust return ret; 235399baf625SManoj Naik } 235499baf625SManoj Naik 23551da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23561da177e4SLinus Torvalds { 23578687b63aSAl Viro __be32 *p; 23581da177e4SLinus Torvalds int status = 0; 23591da177e4SLinus Torvalds 23601da177e4SLinus Torvalds *res = 0; 23611da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 23621da177e4SLinus Torvalds return -EIO; 23631da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 23641da177e4SLinus Torvalds READ_BUF(8); 23651da177e4SLinus Torvalds READ64(*res); 23661da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 23671da177e4SLinus Torvalds } 23683110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 23691da177e4SLinus Torvalds return status; 23701da177e4SLinus Torvalds } 23711da177e4SLinus Torvalds 23721da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23731da177e4SLinus Torvalds { 23748687b63aSAl Viro __be32 *p; 23751da177e4SLinus Torvalds int status = 0; 23761da177e4SLinus Torvalds 23771da177e4SLinus Torvalds *res = 0; 23781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 23791da177e4SLinus Torvalds return -EIO; 23801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 23811da177e4SLinus Torvalds READ_BUF(8); 23821da177e4SLinus Torvalds READ64(*res); 23831da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 23841da177e4SLinus Torvalds } 23853110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 23861da177e4SLinus Torvalds return status; 23871da177e4SLinus Torvalds } 23881da177e4SLinus Torvalds 23891da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23901da177e4SLinus Torvalds { 23918687b63aSAl Viro __be32 *p; 23921da177e4SLinus Torvalds int status = 0; 23931da177e4SLinus Torvalds 23941da177e4SLinus Torvalds *res = 0; 23951da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 23961da177e4SLinus Torvalds return -EIO; 23971da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 23981da177e4SLinus Torvalds READ_BUF(8); 23991da177e4SLinus Torvalds READ64(*res); 24001da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 24011da177e4SLinus Torvalds } 24023110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 24031da177e4SLinus Torvalds return status; 24041da177e4SLinus Torvalds } 24051da177e4SLinus Torvalds 24067aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 24077aaa0b3bSManoj Naik { 2408464ad6b1SChuck Lever u32 n; 24098687b63aSAl Viro __be32 *p; 24107aaa0b3bSManoj Naik int status = 0; 24117aaa0b3bSManoj Naik 24127aaa0b3bSManoj Naik READ_BUF(4); 24137aaa0b3bSManoj Naik READ32(n); 241433a43f28SAndy Adamson if (n == 0) 241533a43f28SAndy Adamson goto root_path; 24167aaa0b3bSManoj Naik dprintk("path "); 24177aaa0b3bSManoj Naik path->ncomponents = 0; 24187aaa0b3bSManoj Naik while (path->ncomponents < n) { 24197aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 24207aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 24217aaa0b3bSManoj Naik if (unlikely(status != 0)) 24227aaa0b3bSManoj Naik goto out_eio; 24237aaa0b3bSManoj Naik if (path->ncomponents != n) 24247aaa0b3bSManoj Naik dprintk("/"); 24257aaa0b3bSManoj Naik dprintk("%s", component->data); 24267aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 24277aaa0b3bSManoj Naik path->ncomponents++; 24287aaa0b3bSManoj Naik else { 24297aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 24307aaa0b3bSManoj Naik goto out_eio; 24317aaa0b3bSManoj Naik } 24327aaa0b3bSManoj Naik } 24337aaa0b3bSManoj Naik out: 24347aaa0b3bSManoj Naik dprintk("\n"); 24357aaa0b3bSManoj Naik return status; 243633a43f28SAndy Adamson root_path: 243733a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 243833a43f28SAndy Adamson path->ncomponents = 1; 243933a43f28SAndy Adamson path->components[0].len=0; 244033a43f28SAndy Adamson path->components[0].data=NULL; 244133a43f28SAndy Adamson dprintk("path /\n"); 244233a43f28SAndy Adamson goto out; 24437aaa0b3bSManoj Naik out_eio: 24447aaa0b3bSManoj Naik dprintk(" status %d", status); 24457aaa0b3bSManoj Naik status = -EIO; 24467aaa0b3bSManoj Naik goto out; 24477aaa0b3bSManoj Naik } 24487aaa0b3bSManoj Naik 24497aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2450683b57b4STrond Myklebust { 2451683b57b4STrond Myklebust int n; 24528687b63aSAl Viro __be32 *p; 2453683b57b4STrond Myklebust int status = -EIO; 2454683b57b4STrond Myklebust 2455683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2456683b57b4STrond Myklebust goto out; 2457683b57b4STrond Myklebust status = 0; 2458683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2459683b57b4STrond Myklebust goto out; 24603110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 24617aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2462683b57b4STrond Myklebust if (unlikely(status != 0)) 2463683b57b4STrond Myklebust goto out; 2464683b57b4STrond Myklebust READ_BUF(4); 2465683b57b4STrond Myklebust READ32(n); 2466683b57b4STrond Myklebust if (n <= 0) 2467683b57b4STrond Myklebust goto out_eio; 2468683b57b4STrond Myklebust res->nlocations = 0; 2469683b57b4STrond Myklebust while (res->nlocations < n) { 2470464ad6b1SChuck Lever u32 m; 24717aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2472683b57b4STrond Myklebust 24737aaa0b3bSManoj Naik READ_BUF(4); 24747aaa0b3bSManoj Naik READ32(m); 24757aaa0b3bSManoj Naik 24767aaa0b3bSManoj Naik loc->nservers = 0; 24773110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 24787aaa0b3bSManoj Naik while (loc->nservers < m) { 24797aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 24807aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2481683b57b4STrond Myklebust if (unlikely(status != 0)) 2482683b57b4STrond Myklebust goto out_eio; 24837aaa0b3bSManoj Naik dprintk("%s ", server->data); 24847aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 24857aaa0b3bSManoj Naik loc->nservers++; 24867aaa0b3bSManoj Naik else { 2487464ad6b1SChuck Lever unsigned int i; 2488464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2489464ad6b1SChuck Lever "returned for location %u\n", 24903110ff80SHarvey Harrison __func__, 2491464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2492464ad6b1SChuck Lever m, res->nlocations); 24937aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 24942e42c3e2STrond Myklebust unsigned int len; 24957aaa0b3bSManoj Naik char *data; 24967aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2497683b57b4STrond Myklebust if (unlikely(status != 0)) 2498683b57b4STrond Myklebust goto out_eio; 24997aaa0b3bSManoj Naik } 25007aaa0b3bSManoj Naik } 25017aaa0b3bSManoj Naik } 25027aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 25037aaa0b3bSManoj Naik if (unlikely(status != 0)) 25047aaa0b3bSManoj Naik goto out_eio; 25057aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2506683b57b4STrond Myklebust res->nlocations++; 2507683b57b4STrond Myklebust } 2508409924e4STrond Myklebust if (res->nlocations != 0) 2509409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 2510683b57b4STrond Myklebust out: 25113110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2512683b57b4STrond Myklebust return status; 2513683b57b4STrond Myklebust out_eio: 2514683b57b4STrond Myklebust status = -EIO; 2515683b57b4STrond Myklebust goto out; 2516683b57b4STrond Myklebust } 2517683b57b4STrond Myklebust 25181da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 25191da177e4SLinus Torvalds { 25208687b63aSAl Viro __be32 *p; 25211da177e4SLinus Torvalds int status = 0; 25221da177e4SLinus Torvalds 25231da177e4SLinus Torvalds *res = 0; 25241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 25251da177e4SLinus Torvalds return -EIO; 25261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 25271da177e4SLinus Torvalds READ_BUF(8); 25281da177e4SLinus Torvalds READ64(*res); 25291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 25301da177e4SLinus Torvalds } 25313110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 25321da177e4SLinus Torvalds return status; 25331da177e4SLinus Torvalds } 25341da177e4SLinus Torvalds 25351da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 25361da177e4SLinus Torvalds { 25378687b63aSAl Viro __be32 *p; 25381da177e4SLinus Torvalds int status = 0; 25391da177e4SLinus Torvalds 25401da177e4SLinus Torvalds *maxlink = 1; 25411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 25421da177e4SLinus Torvalds return -EIO; 25431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 25441da177e4SLinus Torvalds READ_BUF(4); 25451da177e4SLinus Torvalds READ32(*maxlink); 25461da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 25471da177e4SLinus Torvalds } 25483110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 25491da177e4SLinus Torvalds return status; 25501da177e4SLinus Torvalds } 25511da177e4SLinus Torvalds 25521da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 25531da177e4SLinus Torvalds { 25548687b63aSAl Viro __be32 *p; 25551da177e4SLinus Torvalds int status = 0; 25561da177e4SLinus Torvalds 25571da177e4SLinus Torvalds *maxname = 1024; 25581da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 25591da177e4SLinus Torvalds return -EIO; 25601da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 25611da177e4SLinus Torvalds READ_BUF(4); 25621da177e4SLinus Torvalds READ32(*maxname); 25631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 25641da177e4SLinus Torvalds } 25653110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 25661da177e4SLinus Torvalds return status; 25671da177e4SLinus Torvalds } 25681da177e4SLinus Torvalds 25691da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 25701da177e4SLinus Torvalds { 25718687b63aSAl Viro __be32 *p; 25721da177e4SLinus Torvalds int status = 0; 25731da177e4SLinus Torvalds 25741da177e4SLinus Torvalds *res = 1024; 25751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 25761da177e4SLinus Torvalds return -EIO; 25771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 25781da177e4SLinus Torvalds uint64_t maxread; 25791da177e4SLinus Torvalds READ_BUF(8); 25801da177e4SLinus Torvalds READ64(maxread); 25811da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 25821da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 25831da177e4SLinus Torvalds *res = (uint32_t)maxread; 25841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 25851da177e4SLinus Torvalds } 25863110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 25871da177e4SLinus Torvalds return status; 25881da177e4SLinus Torvalds } 25891da177e4SLinus Torvalds 25901da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 25911da177e4SLinus Torvalds { 25928687b63aSAl Viro __be32 *p; 25931da177e4SLinus Torvalds int status = 0; 25941da177e4SLinus Torvalds 25951da177e4SLinus Torvalds *res = 1024; 25961da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 25971da177e4SLinus Torvalds return -EIO; 25981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 25991da177e4SLinus Torvalds uint64_t maxwrite; 26001da177e4SLinus Torvalds READ_BUF(8); 26011da177e4SLinus Torvalds READ64(maxwrite); 26021da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 26031da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 26041da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 26051da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 26061da177e4SLinus Torvalds } 26073110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 26081da177e4SLinus Torvalds return status; 26091da177e4SLinus Torvalds } 26101da177e4SLinus Torvalds 2611bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 26121da177e4SLinus Torvalds { 2613bca79478STrond Myklebust uint32_t tmp; 26148687b63aSAl Viro __be32 *p; 2615409924e4STrond Myklebust int ret = 0; 26161da177e4SLinus Torvalds 26171da177e4SLinus Torvalds *mode = 0; 26181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 26191da177e4SLinus Torvalds return -EIO; 26201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 26211da177e4SLinus Torvalds READ_BUF(4); 2622bca79478STrond Myklebust READ32(tmp); 2623bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 26241da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 2625409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 26261da177e4SLinus Torvalds } 26273110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 2628409924e4STrond Myklebust return ret; 26291da177e4SLinus Torvalds } 26301da177e4SLinus Torvalds 26311da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 26321da177e4SLinus Torvalds { 26338687b63aSAl Viro __be32 *p; 2634409924e4STrond Myklebust int ret = 0; 26351da177e4SLinus Torvalds 26361da177e4SLinus Torvalds *nlink = 1; 26371da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 26381da177e4SLinus Torvalds return -EIO; 26391da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 26401da177e4SLinus Torvalds READ_BUF(4); 26411da177e4SLinus Torvalds READ32(*nlink); 26421da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 2643409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 26441da177e4SLinus Torvalds } 26453110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 2646409924e4STrond Myklebust return ret; 26471da177e4SLinus Torvalds } 26481da177e4SLinus Torvalds 26492e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 26501da177e4SLinus Torvalds { 26518687b63aSAl Viro uint32_t len; 26528687b63aSAl Viro __be32 *p; 2653409924e4STrond Myklebust int ret = 0; 26541da177e4SLinus Torvalds 26551da177e4SLinus Torvalds *uid = -2; 26561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 26571da177e4SLinus Torvalds return -EIO; 26581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 26591da177e4SLinus Torvalds READ_BUF(4); 26601da177e4SLinus Torvalds READ32(len); 26611da177e4SLinus Torvalds READ_BUF(len); 26621da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 2663409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 2664409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 2665409924e4STrond Myklebust else 26661da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 26673110ff80SHarvey Harrison __func__); 26681da177e4SLinus Torvalds } else 2669fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 26703110ff80SHarvey Harrison __func__, len); 26711da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 26721da177e4SLinus Torvalds } 26733110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 2674409924e4STrond Myklebust return ret; 26751da177e4SLinus Torvalds } 26761da177e4SLinus Torvalds 26772e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 26781da177e4SLinus Torvalds { 26798687b63aSAl Viro uint32_t len; 26808687b63aSAl Viro __be32 *p; 2681409924e4STrond Myklebust int ret = 0; 26821da177e4SLinus Torvalds 26831da177e4SLinus Torvalds *gid = -2; 26841da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 26851da177e4SLinus Torvalds return -EIO; 26861da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 26871da177e4SLinus Torvalds READ_BUF(4); 26881da177e4SLinus Torvalds READ32(len); 26891da177e4SLinus Torvalds READ_BUF(len); 26901da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 2691409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 2692409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 2693409924e4STrond Myklebust else 26941da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 26953110ff80SHarvey Harrison __func__); 26961da177e4SLinus Torvalds } else 2697fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 26983110ff80SHarvey Harrison __func__, len); 26991da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 27001da177e4SLinus Torvalds } 27013110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 2702409924e4STrond Myklebust return ret; 27031da177e4SLinus Torvalds } 27041da177e4SLinus Torvalds 27051da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 27061da177e4SLinus Torvalds { 27078687b63aSAl Viro uint32_t major = 0, minor = 0; 27088687b63aSAl Viro __be32 *p; 2709409924e4STrond Myklebust int ret = 0; 27101da177e4SLinus Torvalds 27111da177e4SLinus Torvalds *rdev = MKDEV(0,0); 27121da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 27131da177e4SLinus Torvalds return -EIO; 27141da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 27151da177e4SLinus Torvalds dev_t tmp; 27161da177e4SLinus Torvalds 27171da177e4SLinus Torvalds READ_BUF(8); 27181da177e4SLinus Torvalds READ32(major); 27191da177e4SLinus Torvalds READ32(minor); 27201da177e4SLinus Torvalds tmp = MKDEV(major, minor); 27211da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 27221da177e4SLinus Torvalds *rdev = tmp; 27231da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 2724409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 27251da177e4SLinus Torvalds } 27263110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 2727409924e4STrond Myklebust return ret; 27281da177e4SLinus Torvalds } 27291da177e4SLinus Torvalds 27301da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27311da177e4SLinus Torvalds { 27328687b63aSAl Viro __be32 *p; 27331da177e4SLinus Torvalds int status = 0; 27341da177e4SLinus Torvalds 27351da177e4SLinus Torvalds *res = 0; 27361da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 27371da177e4SLinus Torvalds return -EIO; 27381da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 27391da177e4SLinus Torvalds READ_BUF(8); 27401da177e4SLinus Torvalds READ64(*res); 27411da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 27421da177e4SLinus Torvalds } 27433110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 27441da177e4SLinus Torvalds return status; 27451da177e4SLinus Torvalds } 27461da177e4SLinus Torvalds 27471da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27481da177e4SLinus Torvalds { 27498687b63aSAl Viro __be32 *p; 27501da177e4SLinus Torvalds int status = 0; 27511da177e4SLinus Torvalds 27521da177e4SLinus Torvalds *res = 0; 27531da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 27541da177e4SLinus Torvalds return -EIO; 27551da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 27561da177e4SLinus Torvalds READ_BUF(8); 27571da177e4SLinus Torvalds READ64(*res); 27581da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 27591da177e4SLinus Torvalds } 27603110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 27611da177e4SLinus Torvalds return status; 27621da177e4SLinus Torvalds } 27631da177e4SLinus Torvalds 27641da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27651da177e4SLinus Torvalds { 27668687b63aSAl Viro __be32 *p; 27671da177e4SLinus Torvalds int status = 0; 27681da177e4SLinus Torvalds 27691da177e4SLinus Torvalds *res = 0; 27701da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 27711da177e4SLinus Torvalds return -EIO; 27721da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 27731da177e4SLinus Torvalds READ_BUF(8); 27741da177e4SLinus Torvalds READ64(*res); 27751da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 27761da177e4SLinus Torvalds } 27773110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 27781da177e4SLinus Torvalds return status; 27791da177e4SLinus Torvalds } 27801da177e4SLinus Torvalds 27811da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 27821da177e4SLinus Torvalds { 27838687b63aSAl Viro __be32 *p; 2784409924e4STrond Myklebust int ret = 0; 27851da177e4SLinus Torvalds 27861da177e4SLinus Torvalds *used = 0; 27871da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 27881da177e4SLinus Torvalds return -EIO; 27891da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 27901da177e4SLinus Torvalds READ_BUF(8); 27911da177e4SLinus Torvalds READ64(*used); 27921da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 2793409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 27941da177e4SLinus Torvalds } 27953110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 27961da177e4SLinus Torvalds (unsigned long long)*used); 2797409924e4STrond Myklebust return ret; 27981da177e4SLinus Torvalds } 27991da177e4SLinus Torvalds 28001da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 28011da177e4SLinus Torvalds { 28028687b63aSAl Viro __be32 *p; 28031da177e4SLinus Torvalds uint64_t sec; 28041da177e4SLinus Torvalds uint32_t nsec; 28051da177e4SLinus Torvalds 28061da177e4SLinus Torvalds READ_BUF(12); 28071da177e4SLinus Torvalds READ64(sec); 28081da177e4SLinus Torvalds READ32(nsec); 28091da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 28101da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 28111da177e4SLinus Torvalds return 0; 28121da177e4SLinus Torvalds } 28131da177e4SLinus Torvalds 28141da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 28151da177e4SLinus Torvalds { 28161da177e4SLinus Torvalds int status = 0; 28171da177e4SLinus Torvalds 28181da177e4SLinus Torvalds time->tv_sec = 0; 28191da177e4SLinus Torvalds time->tv_nsec = 0; 28201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 28211da177e4SLinus Torvalds return -EIO; 28221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 28231da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 2824409924e4STrond Myklebust if (status == 0) 2825409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 28261da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 28271da177e4SLinus Torvalds } 28283110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 28291da177e4SLinus Torvalds return status; 28301da177e4SLinus Torvalds } 28311da177e4SLinus Torvalds 28321da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 28331da177e4SLinus Torvalds { 28341da177e4SLinus Torvalds int status = 0; 28351da177e4SLinus Torvalds 28361da177e4SLinus Torvalds time->tv_sec = 0; 28371da177e4SLinus Torvalds time->tv_nsec = 0; 28381da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 28391da177e4SLinus Torvalds return -EIO; 28401da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 28411da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 2842409924e4STrond Myklebust if (status == 0) 2843409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 28441da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 28451da177e4SLinus Torvalds } 28463110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 28471da177e4SLinus Torvalds return status; 28481da177e4SLinus Torvalds } 28491da177e4SLinus Torvalds 28501da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 28511da177e4SLinus Torvalds { 28521da177e4SLinus Torvalds int status = 0; 28531da177e4SLinus Torvalds 28541da177e4SLinus Torvalds time->tv_sec = 0; 28551da177e4SLinus Torvalds time->tv_nsec = 0; 28561da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 28571da177e4SLinus Torvalds return -EIO; 28581da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 28591da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 2860409924e4STrond Myklebust if (status == 0) 2861409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 28621da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 28631da177e4SLinus Torvalds } 28643110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 28651da177e4SLinus Torvalds return status; 28661da177e4SLinus Torvalds } 28671da177e4SLinus Torvalds 28688687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 28691da177e4SLinus Torvalds { 28701da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 28711da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 28721da177e4SLinus Torvalds 28731da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 2874fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 2875fe82a183SChuck Lever "%u %c %u\n", 28763110ff80SHarvey Harrison __func__, 28771da177e4SLinus Torvalds attrwords << 2, 28781da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 28791da177e4SLinus Torvalds nwords << 2); 28801da177e4SLinus Torvalds return -EIO; 28811da177e4SLinus Torvalds } 28821da177e4SLinus Torvalds return 0; 28831da177e4SLinus Torvalds } 28841da177e4SLinus Torvalds 28851da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 28861da177e4SLinus Torvalds { 28878687b63aSAl Viro __be32 *p; 28881da177e4SLinus Torvalds 28891da177e4SLinus Torvalds READ_BUF(20); 28901da177e4SLinus Torvalds READ32(cinfo->atomic); 28911da177e4SLinus Torvalds READ64(cinfo->before); 28921da177e4SLinus Torvalds READ64(cinfo->after); 28931da177e4SLinus Torvalds return 0; 28941da177e4SLinus Torvalds } 28951da177e4SLinus Torvalds 28961da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 28971da177e4SLinus Torvalds { 28988687b63aSAl Viro __be32 *p; 28991da177e4SLinus Torvalds uint32_t supp, acc; 29001da177e4SLinus Torvalds int status; 29011da177e4SLinus Torvalds 29021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 29031da177e4SLinus Torvalds if (status) 29041da177e4SLinus Torvalds return status; 29051da177e4SLinus Torvalds READ_BUF(8); 29061da177e4SLinus Torvalds READ32(supp); 29071da177e4SLinus Torvalds READ32(acc); 29081da177e4SLinus Torvalds access->supported = supp; 29091da177e4SLinus Torvalds access->access = acc; 29101da177e4SLinus Torvalds return 0; 29111da177e4SLinus Torvalds } 29121da177e4SLinus Torvalds 29131da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 29141da177e4SLinus Torvalds { 29158687b63aSAl Viro __be32 *p; 29161da177e4SLinus Torvalds int status; 29171da177e4SLinus Torvalds 29181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 2919c1d51931STrond Myklebust if (status != -EIO) 2920c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 29211da177e4SLinus Torvalds if (status) 29221da177e4SLinus Torvalds return status; 29238ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 29248ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 29251da177e4SLinus Torvalds return 0; 29261da177e4SLinus Torvalds } 29271da177e4SLinus Torvalds 29281da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 29291da177e4SLinus Torvalds { 29308687b63aSAl Viro __be32 *p; 29311da177e4SLinus Torvalds int status; 29321da177e4SLinus Torvalds 29331da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 29341da177e4SLinus Torvalds if (status) 29351da177e4SLinus Torvalds return status; 29361da177e4SLinus Torvalds READ_BUF(8); 29371da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 29381da177e4SLinus Torvalds return 0; 29391da177e4SLinus Torvalds } 29401da177e4SLinus Torvalds 29411da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 29421da177e4SLinus Torvalds { 29438687b63aSAl Viro __be32 *p; 29441da177e4SLinus Torvalds uint32_t bmlen; 29451da177e4SLinus Torvalds int status; 29461da177e4SLinus Torvalds 29471da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 29481da177e4SLinus Torvalds if (status) 29491da177e4SLinus Torvalds return status; 29501da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 29511da177e4SLinus Torvalds return status; 29521da177e4SLinus Torvalds READ_BUF(4); 29531da177e4SLinus Torvalds READ32(bmlen); 29541da177e4SLinus Torvalds READ_BUF(bmlen << 2); 29551da177e4SLinus Torvalds return 0; 29561da177e4SLinus Torvalds } 29571da177e4SLinus Torvalds 29581da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 29591da177e4SLinus Torvalds { 29608687b63aSAl Viro __be32 *savep; 29616c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 29621da177e4SLinus Torvalds int status; 29631da177e4SLinus Torvalds 29641da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29651da177e4SLinus Torvalds goto xdr_error; 29661da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 29671da177e4SLinus Torvalds goto xdr_error; 29681da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 29691da177e4SLinus Torvalds goto xdr_error; 29701da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 29711da177e4SLinus Torvalds goto xdr_error; 29721da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 29731da177e4SLinus Torvalds goto xdr_error; 29741da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 29751da177e4SLinus Torvalds goto xdr_error; 29761da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 29771da177e4SLinus Torvalds goto xdr_error; 29781da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 29791da177e4SLinus Torvalds xdr_error: 29803110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 29811da177e4SLinus Torvalds return status; 29821da177e4SLinus Torvalds } 29831da177e4SLinus Torvalds 29841da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 29851da177e4SLinus Torvalds { 29868687b63aSAl Viro __be32 *savep; 29876c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 29881da177e4SLinus Torvalds int status; 29891da177e4SLinus Torvalds 29901da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29911da177e4SLinus Torvalds goto xdr_error; 29921da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 29931da177e4SLinus Torvalds goto xdr_error; 29941da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 29951da177e4SLinus Torvalds goto xdr_error; 29961da177e4SLinus Torvalds 29971da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 29981da177e4SLinus Torvalds goto xdr_error; 29991da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 30001da177e4SLinus Torvalds goto xdr_error; 30011da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 30021da177e4SLinus Torvalds goto xdr_error; 30031da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 30041da177e4SLinus Torvalds goto xdr_error; 30051da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 30061da177e4SLinus Torvalds goto xdr_error; 30071da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 30081da177e4SLinus Torvalds goto xdr_error; 30091da177e4SLinus Torvalds 30101da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30111da177e4SLinus Torvalds xdr_error: 30123110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 30131da177e4SLinus Torvalds return status; 30141da177e4SLinus Torvalds } 30151da177e4SLinus Torvalds 30161da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 30171da177e4SLinus Torvalds { 30188687b63aSAl Viro __be32 *savep; 30196c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 30201da177e4SLinus Torvalds int status; 30211da177e4SLinus Torvalds 30221da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30231da177e4SLinus Torvalds goto xdr_error; 30241da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30251da177e4SLinus Torvalds goto xdr_error; 30261da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30271da177e4SLinus Torvalds goto xdr_error; 30281da177e4SLinus Torvalds 30291da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 30301da177e4SLinus Torvalds goto xdr_error; 30311da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 30321da177e4SLinus Torvalds goto xdr_error; 30331da177e4SLinus Torvalds 30341da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30351da177e4SLinus Torvalds xdr_error: 30363110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 30371da177e4SLinus Torvalds return status; 30381da177e4SLinus Torvalds } 30391da177e4SLinus Torvalds 30401da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 30411da177e4SLinus Torvalds { 30428687b63aSAl Viro __be32 *savep; 30431da177e4SLinus Torvalds uint32_t attrlen, 30441da177e4SLinus Torvalds bitmap[2] = {0}, 30451da177e4SLinus Torvalds type; 3046bca79478STrond Myklebust int status; 3047bca79478STrond Myklebust umode_t fmode = 0; 304899baf625SManoj Naik uint64_t fileid; 30491da177e4SLinus Torvalds 3050f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3051f26c7a78STrond Myklebust if (status < 0) 30521da177e4SLinus Torvalds goto xdr_error; 30531da177e4SLinus Torvalds 3054f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3055f26c7a78STrond Myklebust if (status < 0) 3056f26c7a78STrond Myklebust goto xdr_error; 3057f26c7a78STrond Myklebust 3058f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3059f26c7a78STrond Myklebust if (status < 0) 30601da177e4SLinus Torvalds goto xdr_error; 30611da177e4SLinus Torvalds 30621da177e4SLinus Torvalds 3063f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3064f26c7a78STrond Myklebust if (status < 0) 30651da177e4SLinus Torvalds goto xdr_error; 3066409924e4STrond Myklebust fattr->mode = 0; 3067409924e4STrond Myklebust if (status != 0) { 3068409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3069409924e4STrond Myklebust fattr->valid |= status; 3070409924e4STrond Myklebust } 30711da177e4SLinus Torvalds 3072f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3073f26c7a78STrond Myklebust if (status < 0) 30741da177e4SLinus Torvalds goto xdr_error; 3075409924e4STrond Myklebust fattr->valid |= status; 3076f26c7a78STrond Myklebust 3077f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3078f26c7a78STrond Myklebust if (status < 0) 30791da177e4SLinus Torvalds goto xdr_error; 3080409924e4STrond Myklebust fattr->valid |= status; 3081f26c7a78STrond Myklebust 3082f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3083f26c7a78STrond Myklebust if (status < 0) 30841da177e4SLinus Torvalds goto xdr_error; 3085409924e4STrond Myklebust fattr->valid |= status; 3086f26c7a78STrond Myklebust 3087f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3088f26c7a78STrond Myklebust if (status < 0) 30891da177e4SLinus Torvalds goto xdr_error; 3090409924e4STrond Myklebust fattr->valid |= status; 3091f26c7a78STrond Myklebust 3092f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 30937aaa0b3bSManoj Naik struct nfs4_fs_locations, 3094f26c7a78STrond Myklebust fattr)); 3095f26c7a78STrond Myklebust if (status < 0) 3096683b57b4STrond Myklebust goto xdr_error; 3097409924e4STrond Myklebust fattr->valid |= status; 3098f26c7a78STrond Myklebust 3099f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3100f26c7a78STrond Myklebust if (status < 0) 31011da177e4SLinus Torvalds goto xdr_error; 3102409924e4STrond Myklebust if (status != 0) { 31031da177e4SLinus Torvalds fattr->mode |= fmode; 3104409924e4STrond Myklebust fattr->valid |= status; 3105409924e4STrond Myklebust } 3106f26c7a78STrond Myklebust 3107f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3108f26c7a78STrond Myklebust if (status < 0) 31091da177e4SLinus Torvalds goto xdr_error; 3110409924e4STrond Myklebust fattr->valid |= status; 3111f26c7a78STrond Myklebust 3112f26c7a78STrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); 3113f26c7a78STrond Myklebust if (status < 0) 31141da177e4SLinus Torvalds goto xdr_error; 3115409924e4STrond Myklebust fattr->valid |= status; 3116f26c7a78STrond Myklebust 3117f26c7a78STrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); 3118f26c7a78STrond Myklebust if (status < 0) 31191da177e4SLinus Torvalds goto xdr_error; 3120409924e4STrond Myklebust fattr->valid |= status; 3121f26c7a78STrond Myklebust 3122f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3123f26c7a78STrond Myklebust if (status < 0) 31241da177e4SLinus Torvalds goto xdr_error; 3125409924e4STrond Myklebust fattr->valid |= status; 3126f26c7a78STrond Myklebust 3127f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3128f26c7a78STrond Myklebust if (status < 0) 31291da177e4SLinus Torvalds goto xdr_error; 3130409924e4STrond Myklebust fattr->valid |= status; 3131f26c7a78STrond Myklebust 3132f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3133f26c7a78STrond Myklebust if (status < 0) 31341da177e4SLinus Torvalds goto xdr_error; 3135409924e4STrond Myklebust fattr->valid |= status; 3136f26c7a78STrond Myklebust 3137f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3138f26c7a78STrond Myklebust if (status < 0) 31391da177e4SLinus Torvalds goto xdr_error; 3140409924e4STrond Myklebust fattr->valid |= status; 3141f26c7a78STrond Myklebust 3142f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3143f26c7a78STrond Myklebust if (status < 0) 31441da177e4SLinus Torvalds goto xdr_error; 3145409924e4STrond Myklebust fattr->valid |= status; 3146f26c7a78STrond Myklebust 3147f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3148f26c7a78STrond Myklebust if (status < 0) 314999baf625SManoj Naik goto xdr_error; 3150409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 315199baf625SManoj Naik fattr->fileid = fileid; 3152409924e4STrond Myklebust fattr->valid |= status; 3153409924e4STrond Myklebust } 3154f26c7a78STrond Myklebust 3155f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 31561da177e4SLinus Torvalds xdr_error: 31573110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 31581da177e4SLinus Torvalds return status; 31591da177e4SLinus Torvalds } 31601da177e4SLinus Torvalds 31611da177e4SLinus Torvalds 31621da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 31631da177e4SLinus Torvalds { 31648687b63aSAl Viro __be32 *savep; 31651da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 31661da177e4SLinus Torvalds int status; 31671da177e4SLinus Torvalds 31681da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31691da177e4SLinus Torvalds goto xdr_error; 31701da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31711da177e4SLinus Torvalds goto xdr_error; 31721da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 31731da177e4SLinus Torvalds goto xdr_error; 31741da177e4SLinus Torvalds 31751da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 31761da177e4SLinus Torvalds 31771da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 31781da177e4SLinus Torvalds goto xdr_error; 31791da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 31801da177e4SLinus Torvalds goto xdr_error; 31811da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 31821da177e4SLinus Torvalds goto xdr_error; 31831da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 31841da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 31851da177e4SLinus Torvalds goto xdr_error; 31861da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 31871da177e4SLinus Torvalds 31881da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 31891da177e4SLinus Torvalds xdr_error: 31903110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 31911da177e4SLinus Torvalds return status; 31921da177e4SLinus Torvalds } 31931da177e4SLinus Torvalds 31941da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 31951da177e4SLinus Torvalds { 31968687b63aSAl Viro __be32 *p; 31971da177e4SLinus Torvalds uint32_t len; 31981da177e4SLinus Torvalds int status; 31991da177e4SLinus Torvalds 32009936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 32019936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 32029936781dSTrond Myklebust 32031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 32041da177e4SLinus Torvalds if (status) 32051da177e4SLinus Torvalds return status; 32061da177e4SLinus Torvalds 32071da177e4SLinus Torvalds READ_BUF(4); 32081da177e4SLinus Torvalds READ32(len); 32091da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 32101da177e4SLinus Torvalds return -EIO; 32111da177e4SLinus Torvalds fh->size = len; 32121da177e4SLinus Torvalds READ_BUF(len); 32131da177e4SLinus Torvalds COPYMEM(fh->data, len); 32141da177e4SLinus Torvalds return 0; 32151da177e4SLinus Torvalds } 32161da177e4SLinus Torvalds 32171da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 32181da177e4SLinus Torvalds { 32191da177e4SLinus Torvalds int status; 32201da177e4SLinus Torvalds 32211da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 32221da177e4SLinus Torvalds if (status) 32231da177e4SLinus Torvalds return status; 32241da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 32251da177e4SLinus Torvalds } 32261da177e4SLinus Torvalds 32271da177e4SLinus Torvalds /* 32281da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 32291da177e4SLinus Torvalds */ 3230911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 32311da177e4SLinus Torvalds { 3232911d1aafSTrond Myklebust uint64_t offset, length, clientid; 32338687b63aSAl Viro __be32 *p; 3234911d1aafSTrond Myklebust uint32_t namelen, type; 32351da177e4SLinus Torvalds 32361da177e4SLinus Torvalds READ_BUF(32); 3237911d1aafSTrond Myklebust READ64(offset); 3238911d1aafSTrond Myklebust READ64(length); 3239911d1aafSTrond Myklebust READ32(type); 3240911d1aafSTrond Myklebust if (fl != NULL) { 3241911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3242911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3243911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3244911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3245911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3246911d1aafSTrond Myklebust if (type & 1) 3247911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3248911d1aafSTrond Myklebust fl->fl_pid = 0; 3249911d1aafSTrond Myklebust } 3250911d1aafSTrond Myklebust READ64(clientid); 32511da177e4SLinus Torvalds READ32(namelen); 32521da177e4SLinus Torvalds READ_BUF(namelen); 32531da177e4SLinus Torvalds return -NFS4ERR_DENIED; 32541da177e4SLinus Torvalds } 32551da177e4SLinus Torvalds 3256911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 32571da177e4SLinus Torvalds { 32588687b63aSAl Viro __be32 *p; 32591da177e4SLinus Torvalds int status; 32601da177e4SLinus Torvalds 32611da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3262c1d51931STrond Myklebust if (status == -EIO) 3263c1d51931STrond Myklebust goto out; 32641da177e4SLinus Torvalds if (status == 0) { 32658ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 32668ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 32671da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3268c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3269c1d51931STrond Myklebust if (res->open_seqid != NULL) 3270c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3271c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3272c1d51931STrond Myklebust out: 32731da177e4SLinus Torvalds return status; 32741da177e4SLinus Torvalds } 32751da177e4SLinus Torvalds 3276911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 32771da177e4SLinus Torvalds { 32781da177e4SLinus Torvalds int status; 32791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 32801da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3281911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 32821da177e4SLinus Torvalds return status; 32831da177e4SLinus Torvalds } 32841da177e4SLinus Torvalds 3285911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 32861da177e4SLinus Torvalds { 32878687b63aSAl Viro __be32 *p; 32881da177e4SLinus Torvalds int status; 32891da177e4SLinus Torvalds 32901da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3291c1d51931STrond Myklebust if (status != -EIO) 3292c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 32931da177e4SLinus Torvalds if (status == 0) { 32948ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 32958ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 32961da177e4SLinus Torvalds } 32971da177e4SLinus Torvalds return status; 32981da177e4SLinus Torvalds } 32991da177e4SLinus Torvalds 33001da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 33011da177e4SLinus Torvalds { 33021da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 33031da177e4SLinus Torvalds } 33041da177e4SLinus Torvalds 33051da177e4SLinus Torvalds /* This is too sick! */ 33061da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 33071da177e4SLinus Torvalds { 33088687b63aSAl Viro __be32 *p; 33091da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 33101da177e4SLinus Torvalds 33111da177e4SLinus Torvalds READ_BUF(12); 33121da177e4SLinus Torvalds READ32(limit_type); 33131da177e4SLinus Torvalds switch (limit_type) { 33141da177e4SLinus Torvalds case 1: 33151da177e4SLinus Torvalds READ64(*maxsize); 33161da177e4SLinus Torvalds break; 33171da177e4SLinus Torvalds case 2: 33181da177e4SLinus Torvalds READ32(nblocks); 33191da177e4SLinus Torvalds READ32(blocksize); 33201da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 33211da177e4SLinus Torvalds } 33221da177e4SLinus Torvalds return 0; 33231da177e4SLinus Torvalds } 33241da177e4SLinus Torvalds 33251da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 33261da177e4SLinus Torvalds { 33278687b63aSAl Viro __be32 *p; 33281da177e4SLinus Torvalds uint32_t delegation_type; 33291da177e4SLinus Torvalds 33301da177e4SLinus Torvalds READ_BUF(4); 33311da177e4SLinus Torvalds READ32(delegation_type); 33321da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 33331da177e4SLinus Torvalds res->delegation_type = 0; 33341da177e4SLinus Torvalds return 0; 33351da177e4SLinus Torvalds } 33368ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 33378ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 33381da177e4SLinus Torvalds READ32(res->do_recall); 333905d564feSAndy Adamson 33401da177e4SLinus Torvalds switch (delegation_type) { 33411da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 33421da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 33431da177e4SLinus Torvalds break; 33441da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 33451da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 33461da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 33471da177e4SLinus Torvalds return -EIO; 33481da177e4SLinus Torvalds } 33497539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 33501da177e4SLinus Torvalds } 33511da177e4SLinus Torvalds 33521da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 33531da177e4SLinus Torvalds { 33548687b63aSAl Viro __be32 *p; 3355aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 33561da177e4SLinus Torvalds int status; 33571da177e4SLinus Torvalds 33581da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 3359c1d51931STrond Myklebust if (status != -EIO) 3360c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33611da177e4SLinus Torvalds if (status) 33621da177e4SLinus Torvalds return status; 33638ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33648ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33651da177e4SLinus Torvalds 33661da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 33671da177e4SLinus Torvalds 33681da177e4SLinus Torvalds READ_BUF(8); 33691da177e4SLinus Torvalds READ32(res->rflags); 33701da177e4SLinus Torvalds READ32(bmlen); 33711da177e4SLinus Torvalds if (bmlen > 10) 33721da177e4SLinus Torvalds goto xdr_error; 33731da177e4SLinus Torvalds 33741da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3375aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3376aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3377aa53ed54SJeff Layton READ32(res->attrset[i]); 3378aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3379aa53ed54SJeff Layton res->attrset[i] = 0; 3380aa53ed54SJeff Layton 33811da177e4SLinus Torvalds return decode_delegation(xdr, res); 33821da177e4SLinus Torvalds xdr_error: 33833110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 33841da177e4SLinus Torvalds return -EIO; 33851da177e4SLinus Torvalds } 33861da177e4SLinus Torvalds 33871da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 33881da177e4SLinus Torvalds { 33898687b63aSAl Viro __be32 *p; 33901da177e4SLinus Torvalds int status; 33911da177e4SLinus Torvalds 33921da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 3393c1d51931STrond Myklebust if (status != -EIO) 3394c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33951da177e4SLinus Torvalds if (status) 33961da177e4SLinus Torvalds return status; 33978ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33988ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33991da177e4SLinus Torvalds return 0; 34001da177e4SLinus Torvalds } 34011da177e4SLinus Torvalds 34021da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 34031da177e4SLinus Torvalds { 34048687b63aSAl Viro __be32 *p; 34051da177e4SLinus Torvalds int status; 34061da177e4SLinus Torvalds 34071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 3408c1d51931STrond Myklebust if (status != -EIO) 3409c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 34101da177e4SLinus Torvalds if (status) 34111da177e4SLinus Torvalds return status; 34128ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 34138ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 34141da177e4SLinus Torvalds return 0; 34151da177e4SLinus Torvalds } 34161da177e4SLinus Torvalds 34171da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 34181da177e4SLinus Torvalds { 34191da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 34201da177e4SLinus Torvalds } 34211da177e4SLinus Torvalds 34221da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 34231da177e4SLinus Torvalds { 34241da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 34251da177e4SLinus Torvalds } 34261da177e4SLinus Torvalds 34271da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 34281da177e4SLinus Torvalds { 34291da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 34308687b63aSAl Viro __be32 *p; 34311da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 34321da177e4SLinus Torvalds int status; 34331da177e4SLinus Torvalds 34341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 34351da177e4SLinus Torvalds if (status) 34361da177e4SLinus Torvalds return status; 34371da177e4SLinus Torvalds READ_BUF(8); 34381da177e4SLinus Torvalds READ32(eof); 34391da177e4SLinus Torvalds READ32(count); 34401da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 34411da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 34421da177e4SLinus Torvalds if (count > recvd) { 3443fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 34441da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 34451da177e4SLinus Torvalds count = recvd; 34461da177e4SLinus Torvalds eof = 0; 34471da177e4SLinus Torvalds } 34481da177e4SLinus Torvalds xdr_read_pages(xdr, count); 34491da177e4SLinus Torvalds res->eof = eof; 34501da177e4SLinus Torvalds res->count = count; 34511da177e4SLinus Torvalds return 0; 34521da177e4SLinus Torvalds } 34531da177e4SLinus Torvalds 34541da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 34551da177e4SLinus Torvalds { 34561da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 34571da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 34581da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3459bcecff77SChuck Lever size_t hdrlen; 3460bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 34618687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 34627bda2cdfSJeff Layton unsigned int nr = 0; 3463bcecff77SChuck Lever int status; 34641da177e4SLinus Torvalds 34651da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 34661da177e4SLinus Torvalds if (status) 34671da177e4SLinus Torvalds return status; 34681da177e4SLinus Torvalds READ_BUF(8); 34691da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 347044109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 347144109241SFred Isaman __func__, 3472eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3473eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3474eadf4598STrond Myklebust 34751da177e4SLinus Torvalds 34761da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 34771da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 34781da177e4SLinus Torvalds if (pglen > recvd) 34791da177e4SLinus Torvalds pglen = recvd; 34801da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 34811da177e4SLinus Torvalds 34821da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 34838687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3484e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 34851da177e4SLinus Torvalds entry = p; 34867bda2cdfSJeff Layton 34877bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 34887bda2cdfSJeff Layton if ((entry + 1) > end) 34897bda2cdfSJeff Layton goto short_pkt; 34907bda2cdfSJeff Layton 34917bda2cdfSJeff Layton for (; *p++; nr++) { 3492bcecff77SChuck Lever u32 len, attrlen, xlen; 3493e8896495SDavid Howells if (end - p < 3) 34941da177e4SLinus Torvalds goto short_pkt; 3495eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 34961da177e4SLinus Torvalds p += 2; /* cookie */ 34971da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 34981da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3499fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3500fe82a183SChuck Lever len); 35011da177e4SLinus Torvalds goto err_unmap; 35021da177e4SLinus Torvalds } 3503e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3504e8896495SDavid Howells if (end - p < xlen + 1) 3505e8896495SDavid Howells goto short_pkt; 3506eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3507e8896495SDavid Howells p += xlen; 35081da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3509e8896495SDavid Howells if (end - p < len + 1) 3510e8896495SDavid Howells goto short_pkt; 35111da177e4SLinus Torvalds p += len; 35121da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3513e8896495SDavid Howells if (end - p < attrlen + 2) 35141da177e4SLinus Torvalds goto short_pkt; 3515e8896495SDavid Howells p += attrlen; /* attributes */ 35161da177e4SLinus Torvalds entry = p; 35171da177e4SLinus Torvalds } 35187bda2cdfSJeff Layton /* 35197bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 35207bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 35217bda2cdfSJeff Layton * those, just set the EOF marker. 35227bda2cdfSJeff Layton */ 35237bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 35247bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 35257bda2cdfSJeff Layton entry[1] = 1; 35267bda2cdfSJeff Layton } 35271da177e4SLinus Torvalds out: 35281da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35291da177e4SLinus Torvalds return 0; 35301da177e4SLinus Torvalds short_pkt: 35317bda2cdfSJeff Layton /* 35327bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 35337bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 35347bda2cdfSJeff Layton * response and return what we have so far. If there are no 35357bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 35367bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 35377bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 35387bda2cdfSJeff Layton * readdir starting at the last cookie. 35397bda2cdfSJeff Layton */ 35403110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 35411da177e4SLinus Torvalds entry[0] = entry[1] = 0; 35427bda2cdfSJeff Layton if (nr) 35431da177e4SLinus Torvalds goto out; 35441da177e4SLinus Torvalds err_unmap: 35451da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35461da177e4SLinus Torvalds return -errno_NFSERR_IO; 35471da177e4SLinus Torvalds } 35481da177e4SLinus Torvalds 35491da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 35501da177e4SLinus Torvalds { 35511da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 35521da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3553bcecff77SChuck Lever size_t hdrlen; 3554bcecff77SChuck Lever u32 len, recvd; 35558687b63aSAl Viro __be32 *p; 35561da177e4SLinus Torvalds char *kaddr; 35571da177e4SLinus Torvalds int status; 35581da177e4SLinus Torvalds 35591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 35601da177e4SLinus Torvalds if (status) 35611da177e4SLinus Torvalds return status; 35621da177e4SLinus Torvalds 35631da177e4SLinus Torvalds /* Convert length of symlink */ 35641da177e4SLinus Torvalds READ_BUF(4); 35651da177e4SLinus Torvalds READ32(len); 35661da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3567fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 35681da177e4SLinus Torvalds return -ENAMETOOLONG; 35691da177e4SLinus Torvalds } 35701da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 35711da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 35721da177e4SLinus Torvalds if (recvd < len) { 3573fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 35741da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 35751da177e4SLinus Torvalds return -EIO; 35761da177e4SLinus Torvalds } 35771da177e4SLinus Torvalds xdr_read_pages(xdr, len); 35781da177e4SLinus Torvalds /* 35791da177e4SLinus Torvalds * The XDR encode routine has set things up so that 35801da177e4SLinus Torvalds * the link text will be copied directly into the 35811da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 35821da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 35831da177e4SLinus Torvalds * null-termination). 35841da177e4SLinus Torvalds */ 35851da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 35861da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 35871da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35881da177e4SLinus Torvalds return 0; 35891da177e4SLinus Torvalds } 35901da177e4SLinus Torvalds 35911da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35921da177e4SLinus Torvalds { 35931da177e4SLinus Torvalds int status; 35941da177e4SLinus Torvalds 35951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 35961da177e4SLinus Torvalds if (status) 35971da177e4SLinus Torvalds goto out; 35981da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 35991da177e4SLinus Torvalds out: 36001da177e4SLinus Torvalds return status; 36011da177e4SLinus Torvalds } 36021da177e4SLinus Torvalds 36031da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 36041da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 36051da177e4SLinus Torvalds { 36061da177e4SLinus Torvalds int status; 36071da177e4SLinus Torvalds 36081da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 36091da177e4SLinus Torvalds if (status) 36101da177e4SLinus Torvalds goto out; 36111da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 36121da177e4SLinus Torvalds goto out; 36131da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 36141da177e4SLinus Torvalds out: 36151da177e4SLinus Torvalds return status; 36161da177e4SLinus Torvalds } 36171da177e4SLinus Torvalds 36181da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 36191da177e4SLinus Torvalds { 36201da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 36211da177e4SLinus Torvalds } 36221da177e4SLinus Torvalds 362356ae19f3STrond Myklebust static int 362456ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 362556ae19f3STrond Myklebust { 362656ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 362756ae19f3STrond Myklebust } 362856ae19f3STrond Myklebust 3629029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3630029d105eSJ. Bruce Fields size_t *acl_len) 3631029d105eSJ. Bruce Fields { 36328687b63aSAl Viro __be32 *savep; 3633029d105eSJ. Bruce Fields uint32_t attrlen, 3634029d105eSJ. Bruce Fields bitmap[2] = {0}; 3635029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 3636029d105eSJ. Bruce Fields int status; 3637029d105eSJ. Bruce Fields 3638029d105eSJ. Bruce Fields *acl_len = 0; 3639029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3640029d105eSJ. Bruce Fields goto out; 3641029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3642029d105eSJ. Bruce Fields goto out; 3643029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3644029d105eSJ. Bruce Fields goto out; 3645029d105eSJ. Bruce Fields 3646029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3647029d105eSJ. Bruce Fields return -EIO; 3648029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3649bcecff77SChuck Lever size_t hdrlen; 3650bcecff77SChuck Lever u32 recvd; 3651029d105eSJ. Bruce Fields 3652029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 3653029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 3654029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3655029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 3656029d105eSJ. Bruce Fields if (attrlen > recvd) { 3657fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 3658029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 3659029d105eSJ. Bruce Fields attrlen, recvd); 3660029d105eSJ. Bruce Fields return -EINVAL; 3661029d105eSJ. Bruce Fields } 3662029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 3663029d105eSJ. Bruce Fields *acl_len = attrlen; 36648c233cf9SJ. Bruce Fields } else 36658c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 3666029d105eSJ. Bruce Fields 3667029d105eSJ. Bruce Fields out: 3668029d105eSJ. Bruce Fields return status; 3669029d105eSJ. Bruce Fields } 3670029d105eSJ. Bruce Fields 36711da177e4SLinus Torvalds static int 36721da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 36731da177e4SLinus Torvalds { 36741da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 36751da177e4SLinus Torvalds } 36761da177e4SLinus Torvalds 36779e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 36781da177e4SLinus Torvalds { 36798687b63aSAl Viro __be32 *p; 36801da177e4SLinus Torvalds uint32_t bmlen; 36811da177e4SLinus Torvalds int status; 36821da177e4SLinus Torvalds 36831da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 36841da177e4SLinus Torvalds if (status) 36851da177e4SLinus Torvalds return status; 36861da177e4SLinus Torvalds READ_BUF(4); 36871da177e4SLinus Torvalds READ32(bmlen); 36881da177e4SLinus Torvalds READ_BUF(bmlen << 2); 36891da177e4SLinus Torvalds return 0; 36901da177e4SLinus Torvalds } 36911da177e4SLinus Torvalds 3692adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 36931da177e4SLinus Torvalds { 36948687b63aSAl Viro __be32 *p; 36951da177e4SLinus Torvalds uint32_t opnum; 36961da177e4SLinus Torvalds int32_t nfserr; 36971da177e4SLinus Torvalds 36981da177e4SLinus Torvalds READ_BUF(8); 36991da177e4SLinus Torvalds READ32(opnum); 37001da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 3701fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 37021da177e4SLinus Torvalds " %d\n", opnum); 37031da177e4SLinus Torvalds return -EIO; 37041da177e4SLinus Torvalds } 37051da177e4SLinus Torvalds READ32(nfserr); 37061da177e4SLinus Torvalds if (nfserr == NFS_OK) { 37078ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 37081da177e4SLinus Torvalds READ64(clp->cl_clientid); 37098ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 37101da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 37111da177e4SLinus Torvalds uint32_t len; 37121da177e4SLinus Torvalds 37131da177e4SLinus Torvalds /* skip netid string */ 37141da177e4SLinus Torvalds READ_BUF(4); 37151da177e4SLinus Torvalds READ32(len); 37161da177e4SLinus Torvalds READ_BUF(len); 37171da177e4SLinus Torvalds 37181da177e4SLinus Torvalds /* skip uaddr string */ 37191da177e4SLinus Torvalds READ_BUF(4); 37201da177e4SLinus Torvalds READ32(len); 37211da177e4SLinus Torvalds READ_BUF(len); 37221da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 37231da177e4SLinus Torvalds } else 3724856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 37251da177e4SLinus Torvalds 37261da177e4SLinus Torvalds return 0; 37271da177e4SLinus Torvalds } 37281da177e4SLinus Torvalds 37291da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 37301da177e4SLinus Torvalds { 37311da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 37321da177e4SLinus Torvalds } 37331da177e4SLinus Torvalds 37341da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 37351da177e4SLinus Torvalds { 37368687b63aSAl Viro __be32 *p; 37371da177e4SLinus Torvalds int status; 37381da177e4SLinus Torvalds 37391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 37401da177e4SLinus Torvalds if (status) 37411da177e4SLinus Torvalds return status; 37421da177e4SLinus Torvalds 37431da177e4SLinus Torvalds READ_BUF(16); 37441da177e4SLinus Torvalds READ32(res->count); 37451da177e4SLinus Torvalds READ32(res->verf->committed); 37461da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 37471da177e4SLinus Torvalds return 0; 37481da177e4SLinus Torvalds } 37491da177e4SLinus Torvalds 37501da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 37511da177e4SLinus Torvalds { 37521da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 37531da177e4SLinus Torvalds } 37541da177e4SLinus Torvalds 37551da177e4SLinus Torvalds /* 375649c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 375749c2559eSBenny Halevy */ 375849c2559eSBenny Halevy 375949c2559eSBenny Halevy /* 37601da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 37611da177e4SLinus Torvalds */ 37628687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 37631da177e4SLinus Torvalds { 37641da177e4SLinus Torvalds struct xdr_stream xdr; 37651da177e4SLinus Torvalds struct compound_hdr hdr; 37661da177e4SLinus Torvalds int status; 37671da177e4SLinus Torvalds 37681da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37691da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37701da177e4SLinus Torvalds if (status) 37711da177e4SLinus Torvalds goto out; 37721da177e4SLinus Torvalds status = decode_putfh(&xdr); 37731da177e4SLinus Torvalds if (status) 37741da177e4SLinus Torvalds goto out; 37751da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 3776516a6af6STrond Myklebust if (status != 0) 3777516a6af6STrond Myklebust goto out; 3778516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 37791da177e4SLinus Torvalds out: 37801da177e4SLinus Torvalds return status; 37811da177e4SLinus Torvalds } 37821da177e4SLinus Torvalds 37831da177e4SLinus Torvalds /* 37841da177e4SLinus Torvalds * Decode ACCESS response 37851da177e4SLinus Torvalds */ 37868687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 37871da177e4SLinus Torvalds { 37881da177e4SLinus Torvalds struct xdr_stream xdr; 37891da177e4SLinus Torvalds struct compound_hdr hdr; 37901da177e4SLinus Torvalds int status; 37911da177e4SLinus Torvalds 37921da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37931da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37941da177e4SLinus Torvalds goto out; 379576b32999STrond Myklebust status = decode_putfh(&xdr); 379676b32999STrond Myklebust if (status != 0) 379776b32999STrond Myklebust goto out; 37981da177e4SLinus Torvalds status = decode_access(&xdr, res); 379976b32999STrond Myklebust if (status != 0) 380076b32999STrond Myklebust goto out; 380176b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 38021da177e4SLinus Torvalds out: 38031da177e4SLinus Torvalds return status; 38041da177e4SLinus Torvalds } 38051da177e4SLinus Torvalds 38061da177e4SLinus Torvalds /* 38071da177e4SLinus Torvalds * Decode LOOKUP response 38081da177e4SLinus Torvalds */ 38098687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 38101da177e4SLinus Torvalds { 38111da177e4SLinus Torvalds struct xdr_stream xdr; 38121da177e4SLinus Torvalds struct compound_hdr hdr; 38131da177e4SLinus Torvalds int status; 38141da177e4SLinus Torvalds 38151da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38161da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38171da177e4SLinus Torvalds goto out; 38181da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38191da177e4SLinus Torvalds goto out; 38201da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 38211da177e4SLinus Torvalds goto out; 38221da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 38231da177e4SLinus Torvalds goto out; 38241da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38251da177e4SLinus Torvalds out: 38261da177e4SLinus Torvalds return status; 38271da177e4SLinus Torvalds } 38281da177e4SLinus Torvalds 38291da177e4SLinus Torvalds /* 38301da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 38311da177e4SLinus Torvalds */ 38328687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 38331da177e4SLinus Torvalds { 38341da177e4SLinus Torvalds struct xdr_stream xdr; 38351da177e4SLinus Torvalds struct compound_hdr hdr; 38361da177e4SLinus Torvalds int status; 38371da177e4SLinus Torvalds 38381da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38391da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38401da177e4SLinus Torvalds goto out; 38411da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 38421da177e4SLinus Torvalds goto out; 38431da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 38441da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38451da177e4SLinus Torvalds out: 38461da177e4SLinus Torvalds return status; 38471da177e4SLinus Torvalds } 38481da177e4SLinus Torvalds 38491da177e4SLinus Torvalds /* 38501da177e4SLinus Torvalds * Decode REMOVE response 38511da177e4SLinus Torvalds */ 38524fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 38531da177e4SLinus Torvalds { 38541da177e4SLinus Torvalds struct xdr_stream xdr; 38551da177e4SLinus Torvalds struct compound_hdr hdr; 38561da177e4SLinus Torvalds int status; 38571da177e4SLinus Torvalds 38581da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38591da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38601da177e4SLinus Torvalds goto out; 386116e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 386216e42959STrond Myklebust goto out; 386316e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 386416e42959STrond Myklebust goto out; 38654fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 38661da177e4SLinus Torvalds out: 38671da177e4SLinus Torvalds return status; 38681da177e4SLinus Torvalds } 38691da177e4SLinus Torvalds 38701da177e4SLinus Torvalds /* 38711da177e4SLinus Torvalds * Decode RENAME response 38721da177e4SLinus Torvalds */ 38738687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 38741da177e4SLinus Torvalds { 38751da177e4SLinus Torvalds struct xdr_stream xdr; 38761da177e4SLinus Torvalds struct compound_hdr hdr; 38771da177e4SLinus Torvalds int status; 38781da177e4SLinus Torvalds 38791da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38801da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38811da177e4SLinus Torvalds goto out; 38821da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38831da177e4SLinus Torvalds goto out; 38841da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 38851da177e4SLinus Torvalds goto out; 38861da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38871da177e4SLinus Torvalds goto out; 38886caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 38896caf2c82STrond Myklebust goto out; 38906caf2c82STrond Myklebust /* Current FH is target directory */ 38916caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 38926caf2c82STrond Myklebust goto out; 38936caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 38946caf2c82STrond Myklebust goto out; 38956caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 38961da177e4SLinus Torvalds out: 38971da177e4SLinus Torvalds return status; 38981da177e4SLinus Torvalds } 38991da177e4SLinus Torvalds 39001da177e4SLinus Torvalds /* 39011da177e4SLinus Torvalds * Decode LINK response 39021da177e4SLinus Torvalds */ 39038687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 39041da177e4SLinus Torvalds { 39051da177e4SLinus Torvalds struct xdr_stream xdr; 39061da177e4SLinus Torvalds struct compound_hdr hdr; 39071da177e4SLinus Torvalds int status; 39081da177e4SLinus Torvalds 39091da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39101da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 39111da177e4SLinus Torvalds goto out; 39121da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39131da177e4SLinus Torvalds goto out; 39141da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 39151da177e4SLinus Torvalds goto out; 39161da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39171da177e4SLinus Torvalds goto out; 391891ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 391991ba2eeeSTrond Myklebust goto out; 392091ba2eeeSTrond Myklebust /* 392191ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 392291ba2eeeSTrond Myklebust * filehandle. 392391ba2eeeSTrond Myklebust */ 392491ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 392591ba2eeeSTrond Myklebust goto out; 392691ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 392791ba2eeeSTrond Myklebust goto out; 392891ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 39291da177e4SLinus Torvalds out: 39301da177e4SLinus Torvalds return status; 39311da177e4SLinus Torvalds } 39321da177e4SLinus Torvalds 39331da177e4SLinus Torvalds /* 39341da177e4SLinus Torvalds * Decode CREATE response 39351da177e4SLinus Torvalds */ 39368687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39371da177e4SLinus Torvalds { 39381da177e4SLinus Torvalds struct xdr_stream xdr; 39391da177e4SLinus Torvalds struct compound_hdr hdr; 39401da177e4SLinus Torvalds int status; 39411da177e4SLinus Torvalds 39421da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39431da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 39441da177e4SLinus Torvalds goto out; 39451da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39461da177e4SLinus Torvalds goto out; 394756ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 394856ae19f3STrond Myklebust goto out; 39491da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 39501da177e4SLinus Torvalds goto out; 39511da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 39521da177e4SLinus Torvalds goto out; 395356ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 395456ae19f3STrond Myklebust goto out; 395556ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 395656ae19f3STrond Myklebust goto out; 395756ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 39581da177e4SLinus Torvalds out: 39591da177e4SLinus Torvalds return status; 39601da177e4SLinus Torvalds } 39611da177e4SLinus Torvalds 39621da177e4SLinus Torvalds /* 39631da177e4SLinus Torvalds * Decode SYMLINK response 39641da177e4SLinus Torvalds */ 39658687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39661da177e4SLinus Torvalds { 39671da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 39681da177e4SLinus Torvalds } 39691da177e4SLinus Torvalds 39701da177e4SLinus Torvalds /* 39711da177e4SLinus Torvalds * Decode GETATTR response 39721da177e4SLinus Torvalds */ 39738687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 39741da177e4SLinus Torvalds { 39751da177e4SLinus Torvalds struct xdr_stream xdr; 39761da177e4SLinus Torvalds struct compound_hdr hdr; 39771da177e4SLinus Torvalds int status; 39781da177e4SLinus Torvalds 39791da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39801da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39811da177e4SLinus Torvalds if (status) 39821da177e4SLinus Torvalds goto out; 39831da177e4SLinus Torvalds status = decode_putfh(&xdr); 39841da177e4SLinus Torvalds if (status) 39851da177e4SLinus Torvalds goto out; 39861da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 39871da177e4SLinus Torvalds out: 39881da177e4SLinus Torvalds return status; 39891da177e4SLinus Torvalds } 39901da177e4SLinus Torvalds 399123ec6965SJ. Bruce Fields /* 399223ec6965SJ. Bruce Fields * Encode an SETACL request 399323ec6965SJ. Bruce Fields */ 399423ec6965SJ. Bruce Fields static int 39958687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 399623ec6965SJ. Bruce Fields { 399723ec6965SJ. Bruce Fields struct xdr_stream xdr; 399823ec6965SJ. Bruce Fields struct compound_hdr hdr = { 3999d017931cSAndy Adamson .nops = 0, 400023ec6965SJ. Bruce Fields }; 400123ec6965SJ. Bruce Fields int status; 400223ec6965SJ. Bruce Fields 400323ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 40040c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 4005cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 4006d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 4007d017931cSAndy Adamson encode_nops(&hdr); 400823ec6965SJ. Bruce Fields return status; 400923ec6965SJ. Bruce Fields } 401005d564feSAndy Adamson 401123ec6965SJ. Bruce Fields /* 401223ec6965SJ. Bruce Fields * Decode SETACL response 401323ec6965SJ. Bruce Fields */ 401423ec6965SJ. Bruce Fields static int 401573c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 401673c403a9SBenny Halevy struct nfs_setaclres *res) 401723ec6965SJ. Bruce Fields { 401823ec6965SJ. Bruce Fields struct xdr_stream xdr; 401923ec6965SJ. Bruce Fields struct compound_hdr hdr; 402023ec6965SJ. Bruce Fields int status; 402123ec6965SJ. Bruce Fields 402223ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 402323ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 402423ec6965SJ. Bruce Fields if (status) 402523ec6965SJ. Bruce Fields goto out; 402623ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 402723ec6965SJ. Bruce Fields if (status) 402823ec6965SJ. Bruce Fields goto out; 40299e9ecc03SBenny Halevy status = decode_setattr(&xdr); 403023ec6965SJ. Bruce Fields out: 403123ec6965SJ. Bruce Fields return status; 403223ec6965SJ. Bruce Fields } 40331da177e4SLinus Torvalds 40341da177e4SLinus Torvalds /* 4035029d105eSJ. Bruce Fields * Decode GETACL response 4036029d105eSJ. Bruce Fields */ 4037029d105eSJ. Bruce Fields static int 4038663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 4039663c79b3SBenny Halevy struct nfs_getaclres *res) 4040029d105eSJ. Bruce Fields { 4041029d105eSJ. Bruce Fields struct xdr_stream xdr; 4042029d105eSJ. Bruce Fields struct compound_hdr hdr; 4043029d105eSJ. Bruce Fields int status; 4044029d105eSJ. Bruce Fields 4045029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4046029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4047029d105eSJ. Bruce Fields if (status) 4048029d105eSJ. Bruce Fields goto out; 4049029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4050029d105eSJ. Bruce Fields if (status) 4051029d105eSJ. Bruce Fields goto out; 4052663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 4053029d105eSJ. Bruce Fields 4054029d105eSJ. Bruce Fields out: 4055029d105eSJ. Bruce Fields return status; 4056029d105eSJ. Bruce Fields } 4057029d105eSJ. Bruce Fields 4058029d105eSJ. Bruce Fields /* 40591da177e4SLinus Torvalds * Decode CLOSE response 40601da177e4SLinus Torvalds */ 40618687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 40621da177e4SLinus Torvalds { 40631da177e4SLinus Torvalds struct xdr_stream xdr; 40641da177e4SLinus Torvalds struct compound_hdr hdr; 40651da177e4SLinus Torvalds int status; 40661da177e4SLinus Torvalds 40671da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40681da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40691da177e4SLinus Torvalds if (status) 40701da177e4SLinus Torvalds goto out; 40711da177e4SLinus Torvalds status = decode_putfh(&xdr); 40721da177e4SLinus Torvalds if (status) 40731da177e4SLinus Torvalds goto out; 40741da177e4SLinus Torvalds status = decode_close(&xdr, res); 4075516a6af6STrond Myklebust if (status != 0) 4076516a6af6STrond Myklebust goto out; 4077516a6af6STrond Myklebust /* 4078516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4079516a6af6STrond Myklebust * in which case the getattr call will fail with 4080516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4081516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4082516a6af6STrond Myklebust */ 4083516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 40841da177e4SLinus Torvalds out: 40851da177e4SLinus Torvalds return status; 40861da177e4SLinus Torvalds } 40871da177e4SLinus Torvalds 40881da177e4SLinus Torvalds /* 40891da177e4SLinus Torvalds * Decode OPEN response 40901da177e4SLinus Torvalds */ 40918687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 40921da177e4SLinus Torvalds { 40931da177e4SLinus Torvalds struct xdr_stream xdr; 40941da177e4SLinus Torvalds struct compound_hdr hdr; 40951da177e4SLinus Torvalds int status; 40961da177e4SLinus Torvalds 40971da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40981da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40991da177e4SLinus Torvalds if (status) 41001da177e4SLinus Torvalds goto out; 41011da177e4SLinus Torvalds status = decode_putfh(&xdr); 41021da177e4SLinus Torvalds if (status) 41031da177e4SLinus Torvalds goto out; 410456ae19f3STrond Myklebust status = decode_savefh(&xdr); 410556ae19f3STrond Myklebust if (status) 410656ae19f3STrond Myklebust goto out; 41071da177e4SLinus Torvalds status = decode_open(&xdr, res); 41081da177e4SLinus Torvalds if (status) 41091da177e4SLinus Torvalds goto out; 41109936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 41111da177e4SLinus Torvalds goto out; 411256ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 411356ae19f3STrond Myklebust goto out; 4114365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 411556ae19f3STrond Myklebust goto out; 411656ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 41171da177e4SLinus Torvalds out: 41181da177e4SLinus Torvalds return status; 41191da177e4SLinus Torvalds } 41201da177e4SLinus Torvalds 41211da177e4SLinus Torvalds /* 41221da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 41231da177e4SLinus Torvalds */ 41248687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 41251da177e4SLinus Torvalds { 41261da177e4SLinus Torvalds struct xdr_stream xdr; 41271da177e4SLinus Torvalds struct compound_hdr hdr; 41281da177e4SLinus Torvalds int status; 41291da177e4SLinus Torvalds 41301da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41311da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41321da177e4SLinus Torvalds if (status) 41331da177e4SLinus Torvalds goto out; 41341da177e4SLinus Torvalds status = decode_putfh(&xdr); 41351da177e4SLinus Torvalds if (status) 41361da177e4SLinus Torvalds goto out; 41371da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 41381da177e4SLinus Torvalds out: 41391da177e4SLinus Torvalds return status; 41401da177e4SLinus Torvalds } 41411da177e4SLinus Torvalds 41421da177e4SLinus Torvalds /* 41431da177e4SLinus Torvalds * Decode OPEN response 41441da177e4SLinus Torvalds */ 41458687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 41461da177e4SLinus Torvalds { 41471da177e4SLinus Torvalds struct xdr_stream xdr; 41481da177e4SLinus Torvalds struct compound_hdr hdr; 41491da177e4SLinus Torvalds int status; 41501da177e4SLinus Torvalds 41511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41531da177e4SLinus Torvalds if (status) 41541da177e4SLinus Torvalds goto out; 41551da177e4SLinus Torvalds status = decode_putfh(&xdr); 41561da177e4SLinus Torvalds if (status) 41571da177e4SLinus Torvalds goto out; 41581da177e4SLinus Torvalds status = decode_open(&xdr, res); 4159864472e9STrond Myklebust if (status) 4160864472e9STrond Myklebust goto out; 4161864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 41621da177e4SLinus Torvalds out: 41631da177e4SLinus Torvalds return status; 41641da177e4SLinus Torvalds } 41651da177e4SLinus Torvalds 41661da177e4SLinus Torvalds /* 41671da177e4SLinus Torvalds * Decode SETATTR response 41681da177e4SLinus Torvalds */ 41698687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 41701da177e4SLinus Torvalds { 41711da177e4SLinus Torvalds struct xdr_stream xdr; 41721da177e4SLinus Torvalds struct compound_hdr hdr; 41731da177e4SLinus Torvalds int status; 41741da177e4SLinus Torvalds 41751da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41761da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41771da177e4SLinus Torvalds if (status) 41781da177e4SLinus Torvalds goto out; 41791da177e4SLinus Torvalds status = decode_putfh(&xdr); 41801da177e4SLinus Torvalds if (status) 41811da177e4SLinus Torvalds goto out; 41829e9ecc03SBenny Halevy status = decode_setattr(&xdr); 41831da177e4SLinus Torvalds if (status) 41841da177e4SLinus Torvalds goto out; 418578f945f8STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 41861da177e4SLinus Torvalds out: 41871da177e4SLinus Torvalds return status; 41881da177e4SLinus Torvalds } 41891da177e4SLinus Torvalds 41901da177e4SLinus Torvalds /* 41911da177e4SLinus Torvalds * Decode LOCK response 41921da177e4SLinus Torvalds */ 41938687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 41941da177e4SLinus Torvalds { 41951da177e4SLinus Torvalds struct xdr_stream xdr; 41961da177e4SLinus Torvalds struct compound_hdr hdr; 41971da177e4SLinus Torvalds int status; 41981da177e4SLinus Torvalds 41991da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42001da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42011da177e4SLinus Torvalds if (status) 42021da177e4SLinus Torvalds goto out; 42031da177e4SLinus Torvalds status = decode_putfh(&xdr); 42041da177e4SLinus Torvalds if (status) 42051da177e4SLinus Torvalds goto out; 42061da177e4SLinus Torvalds status = decode_lock(&xdr, res); 42071da177e4SLinus Torvalds out: 42081da177e4SLinus Torvalds return status; 42091da177e4SLinus Torvalds } 42101da177e4SLinus Torvalds 42111da177e4SLinus Torvalds /* 42121da177e4SLinus Torvalds * Decode LOCKT response 42131da177e4SLinus Torvalds */ 42148687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 42151da177e4SLinus Torvalds { 42161da177e4SLinus Torvalds struct xdr_stream xdr; 42171da177e4SLinus Torvalds struct compound_hdr hdr; 42181da177e4SLinus Torvalds int status; 42191da177e4SLinus Torvalds 42201da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42211da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42221da177e4SLinus Torvalds if (status) 42231da177e4SLinus Torvalds goto out; 42241da177e4SLinus Torvalds status = decode_putfh(&xdr); 42251da177e4SLinus Torvalds if (status) 42261da177e4SLinus Torvalds goto out; 42271da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 42281da177e4SLinus Torvalds out: 42291da177e4SLinus Torvalds return status; 42301da177e4SLinus Torvalds } 42311da177e4SLinus Torvalds 42321da177e4SLinus Torvalds /* 42331da177e4SLinus Torvalds * Decode LOCKU response 42341da177e4SLinus Torvalds */ 42358687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 42361da177e4SLinus Torvalds { 42371da177e4SLinus Torvalds struct xdr_stream xdr; 42381da177e4SLinus Torvalds struct compound_hdr hdr; 42391da177e4SLinus Torvalds int status; 42401da177e4SLinus Torvalds 42411da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42421da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42431da177e4SLinus Torvalds if (status) 42441da177e4SLinus Torvalds goto out; 42451da177e4SLinus Torvalds status = decode_putfh(&xdr); 42461da177e4SLinus Torvalds if (status) 42471da177e4SLinus Torvalds goto out; 42481da177e4SLinus Torvalds status = decode_locku(&xdr, res); 42491da177e4SLinus Torvalds out: 42501da177e4SLinus Torvalds return status; 42511da177e4SLinus Torvalds } 42521da177e4SLinus Torvalds 42531da177e4SLinus Torvalds /* 42541da177e4SLinus Torvalds * Decode READLINK response 42551da177e4SLinus Torvalds */ 4256f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 4257f50c7000SBenny Halevy struct nfs4_readlink_res *res) 42581da177e4SLinus Torvalds { 42591da177e4SLinus Torvalds struct xdr_stream xdr; 42601da177e4SLinus Torvalds struct compound_hdr hdr; 42611da177e4SLinus Torvalds int status; 42621da177e4SLinus Torvalds 42631da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42641da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42651da177e4SLinus Torvalds if (status) 42661da177e4SLinus Torvalds goto out; 42671da177e4SLinus Torvalds status = decode_putfh(&xdr); 42681da177e4SLinus Torvalds if (status) 42691da177e4SLinus Torvalds goto out; 42701da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 42711da177e4SLinus Torvalds out: 42721da177e4SLinus Torvalds return status; 42731da177e4SLinus Torvalds } 42741da177e4SLinus Torvalds 42751da177e4SLinus Torvalds /* 42761da177e4SLinus Torvalds * Decode READDIR response 42771da177e4SLinus Torvalds */ 42788687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 42791da177e4SLinus Torvalds { 42801da177e4SLinus Torvalds struct xdr_stream xdr; 42811da177e4SLinus Torvalds struct compound_hdr hdr; 42821da177e4SLinus Torvalds int status; 42831da177e4SLinus Torvalds 42841da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42851da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42861da177e4SLinus Torvalds if (status) 42871da177e4SLinus Torvalds goto out; 42881da177e4SLinus Torvalds status = decode_putfh(&xdr); 42891da177e4SLinus Torvalds if (status) 42901da177e4SLinus Torvalds goto out; 42911da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 42921da177e4SLinus Torvalds out: 42931da177e4SLinus Torvalds return status; 42941da177e4SLinus Torvalds } 42951da177e4SLinus Torvalds 42961da177e4SLinus Torvalds /* 42971da177e4SLinus Torvalds * Decode Read response 42981da177e4SLinus Torvalds */ 42998687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 43001da177e4SLinus Torvalds { 43011da177e4SLinus Torvalds struct xdr_stream xdr; 43021da177e4SLinus Torvalds struct compound_hdr hdr; 43031da177e4SLinus Torvalds int status; 43041da177e4SLinus Torvalds 43051da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43061da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43071da177e4SLinus Torvalds if (status) 43081da177e4SLinus Torvalds goto out; 43091da177e4SLinus Torvalds status = decode_putfh(&xdr); 43101da177e4SLinus Torvalds if (status) 43111da177e4SLinus Torvalds goto out; 43121da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 43131da177e4SLinus Torvalds if (!status) 43141da177e4SLinus Torvalds status = res->count; 43151da177e4SLinus Torvalds out: 43161da177e4SLinus Torvalds return status; 43171da177e4SLinus Torvalds } 43181da177e4SLinus Torvalds 43191da177e4SLinus Torvalds /* 43201da177e4SLinus Torvalds * Decode WRITE response 43211da177e4SLinus Torvalds */ 43228687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 43231da177e4SLinus Torvalds { 43241da177e4SLinus Torvalds struct xdr_stream xdr; 43251da177e4SLinus Torvalds struct compound_hdr hdr; 43261da177e4SLinus Torvalds int status; 43271da177e4SLinus Torvalds 43281da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43291da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43301da177e4SLinus Torvalds if (status) 43311da177e4SLinus Torvalds goto out; 43321da177e4SLinus Torvalds status = decode_putfh(&xdr); 43331da177e4SLinus Torvalds if (status) 43341da177e4SLinus Torvalds goto out; 43351da177e4SLinus Torvalds status = decode_write(&xdr, res); 43364f9838c7STrond Myklebust if (status) 43374f9838c7STrond Myklebust goto out; 43384f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43391da177e4SLinus Torvalds if (!status) 43401da177e4SLinus Torvalds status = res->count; 43411da177e4SLinus Torvalds out: 43421da177e4SLinus Torvalds return status; 43431da177e4SLinus Torvalds } 43441da177e4SLinus Torvalds 43451da177e4SLinus Torvalds /* 43461da177e4SLinus Torvalds * Decode COMMIT response 43471da177e4SLinus Torvalds */ 43488687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 43491da177e4SLinus Torvalds { 43501da177e4SLinus Torvalds struct xdr_stream xdr; 43511da177e4SLinus Torvalds struct compound_hdr hdr; 43521da177e4SLinus Torvalds int status; 43531da177e4SLinus Torvalds 43541da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43551da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43561da177e4SLinus Torvalds if (status) 43571da177e4SLinus Torvalds goto out; 43581da177e4SLinus Torvalds status = decode_putfh(&xdr); 43591da177e4SLinus Torvalds if (status) 43601da177e4SLinus Torvalds goto out; 43611da177e4SLinus Torvalds status = decode_commit(&xdr, res); 43624f9838c7STrond Myklebust if (status) 43634f9838c7STrond Myklebust goto out; 43644f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43651da177e4SLinus Torvalds out: 43661da177e4SLinus Torvalds return status; 43671da177e4SLinus Torvalds } 43681da177e4SLinus Torvalds 43691da177e4SLinus Torvalds /* 43701da177e4SLinus Torvalds * FSINFO request 43711da177e4SLinus Torvalds */ 43723dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 43733dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 43741da177e4SLinus Torvalds { 43751da177e4SLinus Torvalds struct xdr_stream xdr; 43761da177e4SLinus Torvalds struct compound_hdr hdr; 43771da177e4SLinus Torvalds int status; 43781da177e4SLinus Torvalds 43791da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43801da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43811da177e4SLinus Torvalds if (!status) 43821da177e4SLinus Torvalds status = decode_putfh(&xdr); 43831da177e4SLinus Torvalds if (!status) 43843dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 43851da177e4SLinus Torvalds return status; 43861da177e4SLinus Torvalds } 43871da177e4SLinus Torvalds 43881da177e4SLinus Torvalds /* 43891da177e4SLinus Torvalds * PATHCONF request 43901da177e4SLinus Torvalds */ 4391d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 4392d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 43931da177e4SLinus Torvalds { 43941da177e4SLinus Torvalds struct xdr_stream xdr; 43951da177e4SLinus Torvalds struct compound_hdr hdr; 43961da177e4SLinus Torvalds int status; 43971da177e4SLinus Torvalds 43981da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43991da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44001da177e4SLinus Torvalds if (!status) 44011da177e4SLinus Torvalds status = decode_putfh(&xdr); 44021da177e4SLinus Torvalds if (!status) 4403d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 44041da177e4SLinus Torvalds return status; 44051da177e4SLinus Torvalds } 44061da177e4SLinus Torvalds 44071da177e4SLinus Torvalds /* 44081da177e4SLinus Torvalds * STATFS request 44091da177e4SLinus Torvalds */ 441024ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 441124ad148aSBenny Halevy struct nfs4_statfs_res *res) 44121da177e4SLinus Torvalds { 44131da177e4SLinus Torvalds struct xdr_stream xdr; 44141da177e4SLinus Torvalds struct compound_hdr hdr; 44151da177e4SLinus Torvalds int status; 44161da177e4SLinus Torvalds 44171da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44181da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44191da177e4SLinus Torvalds if (!status) 44201da177e4SLinus Torvalds status = decode_putfh(&xdr); 44211da177e4SLinus Torvalds if (!status) 442224ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 44231da177e4SLinus Torvalds return status; 44241da177e4SLinus Torvalds } 44251da177e4SLinus Torvalds 44261da177e4SLinus Torvalds /* 44271da177e4SLinus Torvalds * GETATTR_BITMAP request 44281da177e4SLinus Torvalds */ 44298687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 44301da177e4SLinus Torvalds { 44311da177e4SLinus Torvalds struct xdr_stream xdr; 44321da177e4SLinus Torvalds struct compound_hdr hdr; 44331da177e4SLinus Torvalds int status; 44341da177e4SLinus Torvalds 44351da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44361da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 44371da177e4SLinus Torvalds goto out; 44381da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44391da177e4SLinus Torvalds goto out; 44401da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 44411da177e4SLinus Torvalds out: 44421da177e4SLinus Torvalds return status; 44431da177e4SLinus Torvalds } 44441da177e4SLinus Torvalds 44451da177e4SLinus Torvalds /* 44461da177e4SLinus Torvalds * Decode RENEW response 44471da177e4SLinus Torvalds */ 44488687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 44491da177e4SLinus Torvalds { 44501da177e4SLinus Torvalds struct xdr_stream xdr; 44511da177e4SLinus Torvalds struct compound_hdr hdr; 44521da177e4SLinus Torvalds int status; 44531da177e4SLinus Torvalds 44541da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44551da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44561da177e4SLinus Torvalds if (!status) 44571da177e4SLinus Torvalds status = decode_renew(&xdr); 44581da177e4SLinus Torvalds return status; 44591da177e4SLinus Torvalds } 44601da177e4SLinus Torvalds 44611da177e4SLinus Torvalds /* 44621da177e4SLinus Torvalds * a SETCLIENTID request 44631da177e4SLinus Torvalds */ 44648687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 4465adfa6f98SDavid Howells struct nfs_client *clp) 44661da177e4SLinus Torvalds { 44671da177e4SLinus Torvalds struct xdr_stream xdr; 44681da177e4SLinus Torvalds struct compound_hdr hdr; 44691da177e4SLinus Torvalds int status; 44701da177e4SLinus Torvalds 44711da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44721da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44731da177e4SLinus Torvalds if (!status) 44741da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 44751da177e4SLinus Torvalds return status; 44761da177e4SLinus Torvalds } 44771da177e4SLinus Torvalds 44781da177e4SLinus Torvalds /* 44791da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 44801da177e4SLinus Torvalds */ 44818687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 44821da177e4SLinus Torvalds { 44831da177e4SLinus Torvalds struct xdr_stream xdr; 44841da177e4SLinus Torvalds struct compound_hdr hdr; 44851da177e4SLinus Torvalds int status; 44861da177e4SLinus Torvalds 44871da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44881da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44891da177e4SLinus Torvalds if (!status) 44901da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 44911da177e4SLinus Torvalds if (!status) 44921da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 44931da177e4SLinus Torvalds if (!status) 44941da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 44951da177e4SLinus Torvalds return status; 44961da177e4SLinus Torvalds } 44971da177e4SLinus Torvalds 44981da177e4SLinus Torvalds /* 44991da177e4SLinus Torvalds * DELEGRETURN request 45001da177e4SLinus Torvalds */ 45018687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 45021da177e4SLinus Torvalds { 45031da177e4SLinus Torvalds struct xdr_stream xdr; 45041da177e4SLinus Torvalds struct compound_hdr hdr; 45051da177e4SLinus Torvalds int status; 45061da177e4SLinus Torvalds 45071da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45081da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 4509fa178f29STrond Myklebust if (status != 0) 4510fa178f29STrond Myklebust goto out; 45111da177e4SLinus Torvalds status = decode_putfh(&xdr); 4512fa178f29STrond Myklebust if (status != 0) 4513fa178f29STrond Myklebust goto out; 45141da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 4515fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 4516fa178f29STrond Myklebust out: 45171da177e4SLinus Torvalds return status; 45181da177e4SLinus Torvalds } 45191da177e4SLinus Torvalds 4520683b57b4STrond Myklebust /* 4521683b57b4STrond Myklebust * FS_LOCATIONS request 4522683b57b4STrond Myklebust */ 452322958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 452422958463SBenny Halevy struct nfs4_fs_locations_res *res) 4525683b57b4STrond Myklebust { 4526683b57b4STrond Myklebust struct xdr_stream xdr; 4527683b57b4STrond Myklebust struct compound_hdr hdr; 4528683b57b4STrond Myklebust int status; 4529683b57b4STrond Myklebust 4530683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4531683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 4532683b57b4STrond Myklebust if (status != 0) 4533683b57b4STrond Myklebust goto out; 4534683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 4535683b57b4STrond Myklebust goto out; 4536683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 4537683b57b4STrond Myklebust goto out; 4538683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 453922958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 454022958463SBenny Halevy res->fs_locations->server); 4541683b57b4STrond Myklebust out: 4542683b57b4STrond Myklebust return status; 4543683b57b4STrond Myklebust } 4544683b57b4STrond Myklebust 45450dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 45461da177e4SLinus Torvalds { 45471da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 45481da177e4SLinus Torvalds uint32_t len; 45491da177e4SLinus Torvalds 45501da177e4SLinus Torvalds if (!*p++) { 45511da177e4SLinus Torvalds if (!*p) 45521da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 45531da177e4SLinus Torvalds entry->eof = 1; 45541da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 45551da177e4SLinus Torvalds } 45561da177e4SLinus Torvalds 45571da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 45581da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 45591da177e4SLinus Torvalds entry->len = ntohl(*p++); 45601da177e4SLinus Torvalds entry->name = (const char *) p; 45611da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 45621da177e4SLinus Torvalds 45631da177e4SLinus Torvalds /* 45641da177e4SLinus Torvalds * In case the server doesn't return an inode number, 45651da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 45661da177e4SLinus Torvalds * since glibc seems to choke on it...) 45671da177e4SLinus Torvalds */ 45681da177e4SLinus Torvalds entry->ino = 1; 45691da177e4SLinus Torvalds 45701da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 45711da177e4SLinus Torvalds if (len-- > 0) { 45721da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 45731da177e4SLinus Torvalds if (len-- > 0) { 45741da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 45751da177e4SLinus Torvalds p += len; 45761da177e4SLinus Torvalds } 45771da177e4SLinus Torvalds } 45781da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 45791da177e4SLinus Torvalds if (len > 0) { 458097d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 458197d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 458297d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 458397d312d0SManoj Naik p++; 458497d312d0SManoj Naik len--; 458597d312d0SManoj Naik } 45861da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 45871da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45881da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 45891da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45901da177e4SLinus Torvalds p += len; 45911da177e4SLinus Torvalds } 45921da177e4SLinus Torvalds 45931da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 45941da177e4SLinus Torvalds return p; 45951da177e4SLinus Torvalds } 45961da177e4SLinus Torvalds 45971da177e4SLinus Torvalds /* 45981da177e4SLinus Torvalds * We need to translate between nfs status return values and 45991da177e4SLinus Torvalds * the local errno values which may not be the same. 46001da177e4SLinus Torvalds */ 46011da177e4SLinus Torvalds static struct { 46021da177e4SLinus Torvalds int stat; 46031da177e4SLinus Torvalds int errno; 46041da177e4SLinus Torvalds } nfs_errtbl[] = { 46051da177e4SLinus Torvalds { NFS4_OK, 0 }, 4606856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 4607856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 4608856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 4609856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 4610856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 4611856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 4612856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 4613856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 4614856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 4615856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 4616856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 4617856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 4618856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 4619856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 4620856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 4621856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 4622856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 4623856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 4624856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 4625856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 4626856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 4627856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 4628856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 4629856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 4630856dff3dSBenny Halevy { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, 4631856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 4632856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 4633856dff3dSBenny Halevy { NFS4ERR_RESOURCE, -EREMOTEIO }, 4634856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 4635856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 4636856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 4637856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 46381da177e4SLinus Torvalds * to be handled by a 46391da177e4SLinus Torvalds * middle-layer. 46401da177e4SLinus Torvalds */ 4641856dff3dSBenny Halevy { -1, -EIO } 46421da177e4SLinus Torvalds }; 46431da177e4SLinus Torvalds 46441da177e4SLinus Torvalds /* 46451da177e4SLinus Torvalds * Convert an NFS error code to a local one. 46461da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 46471da177e4SLinus Torvalds */ 46481da177e4SLinus Torvalds static int 46490a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 46501da177e4SLinus Torvalds { 46511da177e4SLinus Torvalds int i; 46521da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 46531da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 46541da177e4SLinus Torvalds return nfs_errtbl[i].errno; 46551da177e4SLinus Torvalds } 46561da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 46571da177e4SLinus Torvalds /* The server is looney tunes. */ 4658856dff3dSBenny Halevy return -ESERVERFAULT; 46591da177e4SLinus Torvalds } 46601da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 46611da177e4SLinus Torvalds * handle it. 46621da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 46631da177e4SLinus Torvalds * not conflict with native Linux error codes. 46641da177e4SLinus Torvalds */ 4665856dff3dSBenny Halevy return -stat; 46661da177e4SLinus Torvalds } 46671da177e4SLinus Torvalds 46681da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 46691da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 46701da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 46711da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 46721da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 46732bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 46742bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 4675cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 4676cc0175c1SChuck Lever .p_name = #proc, \ 46771da177e4SLinus Torvalds } 46781da177e4SLinus Torvalds 46791da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 46801da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 46811da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 46821da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 46831da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 46841da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 46851da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 46861da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 46871da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 46881da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 46891da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 46901da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 46911da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 46921da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 46931da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 46941da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 46951da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 46961da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 46971da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 46981da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 46991da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 47001da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 47011da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 47021da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 47031da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 47041da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 47051da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 47061da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 47071da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 47081da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 47091da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 47101da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4711029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 471223ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 4713683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 47141da177e4SLinus Torvalds }; 47151da177e4SLinus Torvalds 47161da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 47171da177e4SLinus Torvalds .number = 4, 4718e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 47191da177e4SLinus Torvalds .procs = nfs4_procedures 47201da177e4SLinus Torvalds }; 47211da177e4SLinus Torvalds 47221da177e4SLinus Torvalds /* 47231da177e4SLinus Torvalds * Local variables: 47241da177e4SLinus Torvalds * c-basic-offset: 8 47251da177e4SLinus Torvalds * End: 47261da177e4SLinus Torvalds */ 4727