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) 1951da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1961da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1971da177e4SLinus Torvalds #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) 1981da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 1991da177e4SLinus Torvalds nfs4_name_maxsz) 2001da177e4SLinus Torvalds #define decode_link_maxsz (op_decode_hdr_maxsz + 5) 2019104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2029104a55dSTrond Myklebust 7 + \ 2039104a55dSTrond Myklebust 1 + encode_stateid_maxsz + 8) 2049104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2059104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2069104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2079104a55dSTrond Myklebust decode_lock_denied_maxsz) 2089104a55dSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) 2099104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2109104a55dSTrond Myklebust decode_lock_denied_maxsz) 2119104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2129104a55dSTrond Myklebust encode_stateid_maxsz + \ 2139104a55dSTrond Myklebust 4) 2149104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2159104a55dSTrond Myklebust decode_stateid_maxsz) 2169104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2179104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2181da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2191da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 22094a6d753SChuck Lever 1 + \ 22196928206SJ. Bruce Fields nfs4_fattr_maxsz) 2221da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2231da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2249104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2259104a55dSTrond Myklebust encode_attrs_maxsz) 2262cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2272cebf828STrond Myklebust decode_change_info_maxsz + \ 2282cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2299104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2309104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2311da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2321da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2339104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2349104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2359104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2369104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2379104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2389104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 239e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 240e6889620STrond Myklebust (encode_getattr_maxsz) 241e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 242e6889620STrond Myklebust (0) 2431da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 2441da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 2451da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 2461da177e4SLinus Torvalds encode_putfh_maxsz + \ 2479104a55dSTrond Myklebust encode_read_maxsz) 2481da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 2491da177e4SLinus Torvalds decode_putfh_maxsz + \ 2509104a55dSTrond Myklebust decode_read_maxsz) 2511da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 2521da177e4SLinus Torvalds encode_putfh_maxsz + \ 2539104a55dSTrond Myklebust encode_readlink_maxsz) 2541da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 2551da177e4SLinus Torvalds decode_putfh_maxsz + \ 2569104a55dSTrond Myklebust decode_readlink_maxsz) 2571da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 2581da177e4SLinus Torvalds encode_putfh_maxsz + \ 2599104a55dSTrond Myklebust encode_readdir_maxsz) 2601da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 2611da177e4SLinus Torvalds decode_putfh_maxsz + \ 2629104a55dSTrond Myklebust decode_readdir_maxsz) 2631da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 2641da177e4SLinus Torvalds encode_putfh_maxsz + \ 2659104a55dSTrond Myklebust encode_write_maxsz + \ 2664f9838c7STrond Myklebust encode_getattr_maxsz) 2671da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 2681da177e4SLinus Torvalds decode_putfh_maxsz + \ 2699104a55dSTrond Myklebust decode_write_maxsz + \ 2704f9838c7STrond Myklebust decode_getattr_maxsz) 2711da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 2721da177e4SLinus Torvalds encode_putfh_maxsz + \ 2739104a55dSTrond Myklebust encode_commit_maxsz + \ 2744f9838c7STrond Myklebust encode_getattr_maxsz) 2751da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 2761da177e4SLinus Torvalds decode_putfh_maxsz + \ 2779104a55dSTrond Myklebust decode_commit_maxsz + \ 2784f9838c7STrond Myklebust decode_getattr_maxsz) 2791da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 2801da177e4SLinus Torvalds encode_putfh_maxsz + \ 2812cebf828STrond Myklebust encode_savefh_maxsz + \ 2822cebf828STrond Myklebust encode_open_maxsz + \ 2832cebf828STrond Myklebust encode_getfh_maxsz + \ 2841da177e4SLinus Torvalds encode_getattr_maxsz + \ 2852cebf828STrond Myklebust encode_restorefh_maxsz + \ 2862cebf828STrond Myklebust encode_getattr_maxsz) 2871da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 2881da177e4SLinus Torvalds decode_putfh_maxsz + \ 2892cebf828STrond Myklebust decode_savefh_maxsz + \ 2902cebf828STrond Myklebust decode_open_maxsz + \ 2912cebf828STrond Myklebust decode_getfh_maxsz + \ 2921da177e4SLinus Torvalds decode_getattr_maxsz + \ 2932cebf828STrond Myklebust decode_restorefh_maxsz + \ 2942cebf828STrond Myklebust decode_getattr_maxsz) 2951da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 2961da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 2971da177e4SLinus Torvalds encode_putfh_maxsz + \ 2989104a55dSTrond Myklebust encode_open_confirm_maxsz) 2999104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3009104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3011da177e4SLinus Torvalds decode_putfh_maxsz + \ 3029104a55dSTrond Myklebust decode_open_confirm_maxsz) 3031da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3041da177e4SLinus Torvalds encode_putfh_maxsz + \ 3052cebf828STrond Myklebust encode_open_maxsz + \ 3062cebf828STrond Myklebust encode_getattr_maxsz) 3071da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3081da177e4SLinus Torvalds decode_putfh_maxsz + \ 3092cebf828STrond Myklebust decode_open_maxsz + \ 3102cebf828STrond Myklebust decode_getattr_maxsz) 3111da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3121da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3131da177e4SLinus Torvalds encode_putfh_maxsz + \ 3149104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 315516a6af6STrond Myklebust encode_getattr_maxsz) 3161da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 3171da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3181da177e4SLinus Torvalds decode_putfh_maxsz + \ 3199104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 320516a6af6STrond Myklebust decode_getattr_maxsz) 3211da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 3221da177e4SLinus Torvalds encode_putfh_maxsz + \ 3239104a55dSTrond Myklebust encode_close_maxsz + \ 324516a6af6STrond Myklebust encode_getattr_maxsz) 3251da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 3261da177e4SLinus Torvalds decode_putfh_maxsz + \ 3279104a55dSTrond Myklebust decode_close_maxsz + \ 328516a6af6STrond Myklebust decode_getattr_maxsz) 3291da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 3301da177e4SLinus Torvalds encode_putfh_maxsz + \ 3319104a55dSTrond Myklebust encode_setattr_maxsz + \ 3321da177e4SLinus Torvalds encode_getattr_maxsz) 3331da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 3341da177e4SLinus Torvalds decode_putfh_maxsz + \ 3359104a55dSTrond Myklebust decode_setattr_maxsz + \ 3369104a55dSTrond Myklebust decode_getattr_maxsz) 3371da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 3381da177e4SLinus Torvalds encode_putfh_maxsz + \ 3391da177e4SLinus Torvalds encode_fsinfo_maxsz) 3401da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 3411da177e4SLinus Torvalds decode_putfh_maxsz + \ 3421da177e4SLinus Torvalds decode_fsinfo_maxsz) 3431da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 3441da177e4SLinus Torvalds encode_renew_maxsz) 3451da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 3461da177e4SLinus Torvalds decode_renew_maxsz) 3471da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 3481da177e4SLinus Torvalds encode_setclientid_maxsz) 3491da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 3501da177e4SLinus Torvalds decode_setclientid_maxsz) 3511da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 3521da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3531da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 3541da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 3551da177e4SLinus Torvalds encode_fsinfo_maxsz) 3561da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 3571da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3581da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 3591da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 3601da177e4SLinus Torvalds decode_fsinfo_maxsz) 3611da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 3621da177e4SLinus Torvalds encode_putfh_maxsz + \ 3639104a55dSTrond Myklebust encode_lock_maxsz) 3641da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 3651da177e4SLinus Torvalds decode_putfh_maxsz + \ 3669104a55dSTrond Myklebust decode_lock_maxsz) 3671da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 3681da177e4SLinus Torvalds encode_putfh_maxsz + \ 3699104a55dSTrond Myklebust encode_lockt_maxsz) 3709104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 3719104a55dSTrond Myklebust decode_putfh_maxsz + \ 3729104a55dSTrond Myklebust decode_lockt_maxsz) 3731da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 3741da177e4SLinus Torvalds encode_putfh_maxsz + \ 3759104a55dSTrond Myklebust encode_locku_maxsz) 3761da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 3771da177e4SLinus Torvalds decode_putfh_maxsz + \ 3789104a55dSTrond Myklebust decode_locku_maxsz) 3791da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 3801da177e4SLinus Torvalds encode_putfh_maxsz + \ 38176b32999STrond Myklebust encode_access_maxsz + \ 38276b32999STrond Myklebust encode_getattr_maxsz) 3831da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 3841da177e4SLinus Torvalds decode_putfh_maxsz + \ 38576b32999STrond Myklebust decode_access_maxsz + \ 38676b32999STrond Myklebust decode_getattr_maxsz) 3871da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 3881da177e4SLinus Torvalds encode_putfh_maxsz + \ 3891da177e4SLinus Torvalds encode_getattr_maxsz) 3901da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 3911da177e4SLinus Torvalds decode_putfh_maxsz + \ 3921da177e4SLinus Torvalds decode_getattr_maxsz) 3931da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 3941da177e4SLinus Torvalds encode_putfh_maxsz + \ 3951da177e4SLinus Torvalds encode_lookup_maxsz + \ 3961da177e4SLinus Torvalds encode_getattr_maxsz + \ 3971da177e4SLinus Torvalds encode_getfh_maxsz) 3981da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 3991da177e4SLinus Torvalds decode_putfh_maxsz + \ 400e6889620STrond Myklebust decode_lookup_maxsz + \ 4011da177e4SLinus Torvalds decode_getattr_maxsz + \ 4021da177e4SLinus Torvalds decode_getfh_maxsz) 4031da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 4041da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4051da177e4SLinus Torvalds encode_getattr_maxsz + \ 4061da177e4SLinus Torvalds encode_getfh_maxsz) 4071da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 4081da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4091da177e4SLinus Torvalds decode_getattr_maxsz + \ 4101da177e4SLinus Torvalds decode_getfh_maxsz) 4111da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 4121da177e4SLinus Torvalds encode_putfh_maxsz + \ 41316e42959STrond Myklebust encode_remove_maxsz + \ 41416e42959STrond Myklebust encode_getattr_maxsz) 4151da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 4161da177e4SLinus Torvalds decode_putfh_maxsz + \ 41716e42959STrond Myklebust op_decode_hdr_maxsz + 5 + \ 41816e42959STrond Myklebust decode_getattr_maxsz) 4191da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 4201da177e4SLinus Torvalds encode_putfh_maxsz + \ 4211da177e4SLinus Torvalds encode_savefh_maxsz + \ 4221da177e4SLinus Torvalds encode_putfh_maxsz + \ 4236caf2c82STrond Myklebust encode_rename_maxsz + \ 4246caf2c82STrond Myklebust encode_getattr_maxsz + \ 4256caf2c82STrond Myklebust encode_restorefh_maxsz + \ 4266caf2c82STrond Myklebust encode_getattr_maxsz) 4271da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 4281da177e4SLinus Torvalds decode_putfh_maxsz + \ 4291da177e4SLinus Torvalds decode_savefh_maxsz + \ 4301da177e4SLinus Torvalds decode_putfh_maxsz + \ 4316caf2c82STrond Myklebust decode_rename_maxsz + \ 4326caf2c82STrond Myklebust decode_getattr_maxsz + \ 4336caf2c82STrond Myklebust decode_restorefh_maxsz + \ 4346caf2c82STrond Myklebust decode_getattr_maxsz) 4351da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 4361da177e4SLinus Torvalds encode_putfh_maxsz + \ 4371da177e4SLinus Torvalds encode_savefh_maxsz + \ 4381da177e4SLinus Torvalds encode_putfh_maxsz + \ 43991ba2eeeSTrond Myklebust encode_link_maxsz + \ 44091ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 44191ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 44291ba2eeeSTrond Myklebust decode_getattr_maxsz) 4431da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 4441da177e4SLinus Torvalds decode_putfh_maxsz + \ 4451da177e4SLinus Torvalds decode_savefh_maxsz + \ 4461da177e4SLinus Torvalds decode_putfh_maxsz + \ 44791ba2eeeSTrond Myklebust decode_link_maxsz + \ 44891ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 44991ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 45091ba2eeeSTrond Myklebust decode_getattr_maxsz) 4511da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 4521da177e4SLinus Torvalds encode_putfh_maxsz + \ 4531da177e4SLinus Torvalds encode_symlink_maxsz + \ 4541da177e4SLinus Torvalds encode_getattr_maxsz + \ 4551da177e4SLinus Torvalds encode_getfh_maxsz) 4561da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 4571da177e4SLinus Torvalds decode_putfh_maxsz + \ 4581da177e4SLinus Torvalds decode_symlink_maxsz + \ 4591da177e4SLinus Torvalds decode_getattr_maxsz + \ 4601da177e4SLinus Torvalds decode_getfh_maxsz) 4611da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 4621da177e4SLinus Torvalds encode_putfh_maxsz + \ 46356ae19f3STrond Myklebust encode_savefh_maxsz + \ 4641da177e4SLinus Torvalds encode_create_maxsz + \ 46556ae19f3STrond Myklebust encode_getfh_maxsz + \ 4661da177e4SLinus Torvalds encode_getattr_maxsz + \ 46756ae19f3STrond Myklebust encode_restorefh_maxsz + \ 46856ae19f3STrond Myklebust encode_getattr_maxsz) 4691da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 4701da177e4SLinus Torvalds decode_putfh_maxsz + \ 47156ae19f3STrond Myklebust decode_savefh_maxsz + \ 4721da177e4SLinus Torvalds decode_create_maxsz + \ 47356ae19f3STrond Myklebust decode_getfh_maxsz + \ 4741da177e4SLinus Torvalds decode_getattr_maxsz + \ 47556ae19f3STrond Myklebust decode_restorefh_maxsz + \ 47656ae19f3STrond Myklebust decode_getattr_maxsz) 4771da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 4781da177e4SLinus Torvalds encode_putfh_maxsz + \ 4791da177e4SLinus Torvalds encode_getattr_maxsz) 4801da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 4811da177e4SLinus Torvalds decode_putfh_maxsz + \ 4821da177e4SLinus Torvalds decode_getattr_maxsz) 4831da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 4841da177e4SLinus Torvalds encode_putfh_maxsz + \ 4859104a55dSTrond Myklebust encode_statfs_maxsz) 4861da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 4871da177e4SLinus Torvalds decode_putfh_maxsz + \ 4889104a55dSTrond Myklebust decode_statfs_maxsz) 4891da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 490ab91f264STrond Myklebust encode_putfh_maxsz + \ 4911da177e4SLinus Torvalds encode_getattr_maxsz) 4921da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 493ab91f264STrond Myklebust decode_putfh_maxsz + \ 4941da177e4SLinus Torvalds decode_getattr_maxsz) 4951da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 4961da177e4SLinus Torvalds encode_putfh_maxsz + \ 497fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 498fa178f29STrond Myklebust encode_getattr_maxsz) 4991da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 500fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 501fa178f29STrond Myklebust decode_getattr_maxsz) 502029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 503029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 5049104a55dSTrond Myklebust encode_getacl_maxsz) 505029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 506029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 5079104a55dSTrond Myklebust decode_getacl_maxsz) 50823ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 50923ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 5109104a55dSTrond Myklebust encode_setacl_maxsz) 51123ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 51223ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 5139104a55dSTrond Myklebust decode_setacl_maxsz) 514683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 515683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 516683b57b4STrond Myklebust encode_putfh_maxsz + \ 517e6889620STrond Myklebust encode_lookup_maxsz + \ 518e6889620STrond Myklebust encode_fs_locations_maxsz) 519683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 520683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 521683b57b4STrond Myklebust decode_putfh_maxsz + \ 522e6889620STrond Myklebust decode_lookup_maxsz + \ 523e6889620STrond Myklebust decode_fs_locations_maxsz) 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds static struct { 5261da177e4SLinus Torvalds unsigned int mode; 5271da177e4SLinus Torvalds unsigned int nfs2type; 5281da177e4SLinus Torvalds } nfs_type2fmt[] = { 5291da177e4SLinus Torvalds { 0, NFNON }, 5301da177e4SLinus Torvalds { S_IFREG, NFREG }, 5311da177e4SLinus Torvalds { S_IFDIR, NFDIR }, 5321da177e4SLinus Torvalds { S_IFBLK, NFBLK }, 5331da177e4SLinus Torvalds { S_IFCHR, NFCHR }, 5341da177e4SLinus Torvalds { S_IFLNK, NFLNK }, 5351da177e4SLinus Torvalds { S_IFSOCK, NFSOCK }, 5361da177e4SLinus Torvalds { S_IFIFO, NFFIFO }, 5371da177e4SLinus Torvalds { 0, NFNON }, 5381da177e4SLinus Torvalds { 0, NFNON }, 5391da177e4SLinus Torvalds }; 5401da177e4SLinus Torvalds 5411da177e4SLinus Torvalds struct compound_hdr { 5421da177e4SLinus Torvalds int32_t status; 5431da177e4SLinus Torvalds uint32_t nops; 544d017931cSAndy Adamson __be32 * nops_p; 5451da177e4SLinus Torvalds uint32_t taglen; 5461da177e4SLinus Torvalds char * tag; 5471da177e4SLinus Torvalds }; 5481da177e4SLinus Torvalds 5491da177e4SLinus Torvalds /* 5501da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 5511da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 5521da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 5531da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 5541da177e4SLinus Torvalds * 5551da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 5561da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 5571da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 5581da177e4SLinus Torvalds */ 5591da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 5601da177e4SLinus Torvalds #define WRITE64(n) do { \ 5611da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 5621da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 5631da177e4SLinus Torvalds } while (0) 5641da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 5651da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 5661da177e4SLinus Torvalds } while (0) 5671da177e4SLinus Torvalds 5681da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 5691da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 5701da177e4SLinus Torvalds BUG_ON(!p); \ 5711da177e4SLinus Torvalds } while (0) 5721da177e4SLinus Torvalds 5731da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 5741da177e4SLinus Torvalds { 5758687b63aSAl Viro __be32 *p; 5761da177e4SLinus Torvalds 5771da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 5781da177e4SLinus Torvalds BUG_ON(p == NULL); 5791da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 5801da177e4SLinus Torvalds } 5811da177e4SLinus Torvalds 582d017931cSAndy Adamson static void encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 5831da177e4SLinus Torvalds { 5848687b63aSAl Viro __be32 *p; 5851da177e4SLinus Torvalds 5861da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 5871da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 5881da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 5891da177e4SLinus Torvalds WRITE32(hdr->taglen); 5901da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 5911da177e4SLinus Torvalds WRITE32(NFS4_MINOR_VERSION); 592d017931cSAndy Adamson hdr->nops_p = p; 5931da177e4SLinus Torvalds WRITE32(hdr->nops); 594d017931cSAndy Adamson } 595d017931cSAndy Adamson 596d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 597d017931cSAndy Adamson { 598d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 5991da177e4SLinus Torvalds } 6001da177e4SLinus Torvalds 6011da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 6021da177e4SLinus Torvalds { 6038687b63aSAl Viro __be32 *p; 6041da177e4SLinus Torvalds 6051da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 6061da177e4SLinus Torvalds BUG_ON(p == NULL); 6071da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 6081da177e4SLinus Torvalds } 6091da177e4SLinus Torvalds 610cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 6111da177e4SLinus Torvalds { 6121da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 6131da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 6141da177e4SLinus Torvalds int owner_namelen = 0; 6151da177e4SLinus Torvalds int owner_grouplen = 0; 6168687b63aSAl Viro __be32 *p; 6178687b63aSAl Viro __be32 *q; 6181da177e4SLinus Torvalds int len; 6191da177e4SLinus Torvalds uint32_t bmval0 = 0; 6201da177e4SLinus Torvalds uint32_t bmval1 = 0; 6211da177e4SLinus Torvalds 6221da177e4SLinus Torvalds /* 6231da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 6241da177e4SLinus Torvalds * In the worst-case, this would be 6251da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 6261da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 62723ec6965SJ. Bruce Fields * such as owner/group. 6281da177e4SLinus Torvalds */ 6291da177e4SLinus Torvalds len = 16; 6301da177e4SLinus Torvalds 6311da177e4SLinus Torvalds /* Sigh */ 6321da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 6331da177e4SLinus Torvalds len += 8; 6341da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 6351da177e4SLinus Torvalds len += 4; 6361da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6377539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 6381da177e4SLinus Torvalds if (owner_namelen < 0) { 639fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 6401da177e4SLinus Torvalds iap->ia_uid); 6411da177e4SLinus Torvalds /* XXX */ 6421da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 6431da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 6441da177e4SLinus Torvalds /* goto out; */ 6451da177e4SLinus Torvalds } 6461da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 6471da177e4SLinus Torvalds } 6481da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 6497539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 6501da177e4SLinus Torvalds if (owner_grouplen < 0) { 651fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 6521da177e4SLinus Torvalds iap->ia_gid); 6531da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 6541da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 6551da177e4SLinus Torvalds /* goto out; */ 6561da177e4SLinus Torvalds } 6571da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 6581da177e4SLinus Torvalds } 6591da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 6601da177e4SLinus Torvalds len += 16; 6611da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 6621da177e4SLinus Torvalds len += 4; 6631da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 6641da177e4SLinus Torvalds len += 16; 6651da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 6661da177e4SLinus Torvalds len += 4; 6671da177e4SLinus Torvalds RESERVE_SPACE(len); 6681da177e4SLinus Torvalds 6691da177e4SLinus Torvalds /* 6701da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 6711da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 6721da177e4SLinus Torvalds */ 6731da177e4SLinus Torvalds WRITE32(2); 6741da177e4SLinus Torvalds q = p; 6751da177e4SLinus Torvalds p += 3; 6761da177e4SLinus Torvalds 6771da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 6781da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 6791da177e4SLinus Torvalds WRITE64(iap->ia_size); 6801da177e4SLinus Torvalds } 6811da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 6821da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 683cf3fff54STrond Myklebust WRITE32(iap->ia_mode & S_IALLUGO); 6841da177e4SLinus Torvalds } 6851da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6861da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 6871da177e4SLinus Torvalds WRITE32(owner_namelen); 6881da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 6891da177e4SLinus Torvalds } 6901da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 6911da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 6921da177e4SLinus Torvalds WRITE32(owner_grouplen); 6931da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 6941da177e4SLinus Torvalds } 6951da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 6961da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 6971da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 6981da177e4SLinus Torvalds WRITE32(0); 6991da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 7001da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 7011da177e4SLinus Torvalds } 7021da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 7031da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 7041da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 7051da177e4SLinus Torvalds } 7061da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 7071da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 7081da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 7091da177e4SLinus Torvalds WRITE32(0); 7101da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 7111da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 7121da177e4SLinus Torvalds } 7131da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 7141da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 7151da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 7161da177e4SLinus Torvalds } 7171da177e4SLinus Torvalds 7181da177e4SLinus Torvalds /* 7191da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 7201da177e4SLinus Torvalds */ 7211da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 722fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 7231da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 7241da177e4SLinus Torvalds BUG(); 7251da177e4SLinus Torvalds } 7261da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 7271da177e4SLinus Torvalds *q++ = htonl(bmval0); 7281da177e4SLinus Torvalds *q++ = htonl(bmval1); 7291da177e4SLinus Torvalds *q++ = htonl(len); 7301da177e4SLinus Torvalds 7311da177e4SLinus Torvalds /* out: */ 7321da177e4SLinus Torvalds } 7331da177e4SLinus Torvalds 734cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 7351da177e4SLinus Torvalds { 7368687b63aSAl Viro __be32 *p; 7371da177e4SLinus Torvalds 7381da177e4SLinus Torvalds RESERVE_SPACE(8); 7391da177e4SLinus Torvalds WRITE32(OP_ACCESS); 7401da177e4SLinus Torvalds WRITE32(access); 741d017931cSAndy Adamson hdr->nops++; 7421da177e4SLinus Torvalds } 7431da177e4SLinus Torvalds 744cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 7451da177e4SLinus Torvalds { 7468687b63aSAl Viro __be32 *p; 7471da177e4SLinus Torvalds 7488ae20abdSTrond Myklebust RESERVE_SPACE(8+NFS4_STATEID_SIZE); 7491da177e4SLinus Torvalds WRITE32(OP_CLOSE); 750cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 7518ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 752d017931cSAndy Adamson hdr->nops++; 7531da177e4SLinus Torvalds } 7541da177e4SLinus Torvalds 755cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 7561da177e4SLinus Torvalds { 7578687b63aSAl Viro __be32 *p; 7581da177e4SLinus Torvalds 7591da177e4SLinus Torvalds RESERVE_SPACE(16); 7601da177e4SLinus Torvalds WRITE32(OP_COMMIT); 7611da177e4SLinus Torvalds WRITE64(args->offset); 7621da177e4SLinus Torvalds WRITE32(args->count); 763d017931cSAndy Adamson hdr->nops++; 7641da177e4SLinus Torvalds } 7651da177e4SLinus Torvalds 766cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 7671da177e4SLinus Torvalds { 7688687b63aSAl Viro __be32 *p; 7691da177e4SLinus Torvalds 7701da177e4SLinus Torvalds RESERVE_SPACE(8); 7711da177e4SLinus Torvalds WRITE32(OP_CREATE); 7721da177e4SLinus Torvalds WRITE32(create->ftype); 7731da177e4SLinus Torvalds 7741da177e4SLinus Torvalds switch (create->ftype) { 7751da177e4SLinus Torvalds case NF4LNK: 77694a6d753SChuck Lever RESERVE_SPACE(4); 77794a6d753SChuck Lever WRITE32(create->u.symlink.len); 77894a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 7791da177e4SLinus Torvalds break; 7801da177e4SLinus Torvalds 7811da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 7821da177e4SLinus Torvalds RESERVE_SPACE(8); 7831da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 7841da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 7851da177e4SLinus Torvalds break; 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds default: 7881da177e4SLinus Torvalds break; 7891da177e4SLinus Torvalds } 7901da177e4SLinus Torvalds 7911da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 7921da177e4SLinus Torvalds WRITE32(create->name->len); 7931da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 794d017931cSAndy Adamson hdr->nops++; 7951da177e4SLinus Torvalds 796cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 7971da177e4SLinus Torvalds } 7981da177e4SLinus Torvalds 799cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 8001da177e4SLinus Torvalds { 8018687b63aSAl Viro __be32 *p; 8021da177e4SLinus Torvalds 8031da177e4SLinus Torvalds RESERVE_SPACE(12); 8041da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8051da177e4SLinus Torvalds WRITE32(1); 8061da177e4SLinus Torvalds WRITE32(bitmap); 807d017931cSAndy Adamson hdr->nops++; 8081da177e4SLinus Torvalds } 8091da177e4SLinus Torvalds 810cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 8111da177e4SLinus Torvalds { 8128687b63aSAl Viro __be32 *p; 8131da177e4SLinus Torvalds 8141da177e4SLinus Torvalds RESERVE_SPACE(16); 8151da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8161da177e4SLinus Torvalds WRITE32(2); 8171da177e4SLinus Torvalds WRITE32(bm0); 8181da177e4SLinus Torvalds WRITE32(bm1); 819d017931cSAndy Adamson hdr->nops++; 8201da177e4SLinus Torvalds } 8211da177e4SLinus Torvalds 822cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 8231da177e4SLinus Torvalds { 824cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 825d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 8261da177e4SLinus Torvalds } 8271da177e4SLinus Torvalds 828cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 8291da177e4SLinus Torvalds { 830cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 831d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 8321da177e4SLinus Torvalds } 8331da177e4SLinus Torvalds 834cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 835830b8e33SManoj Naik { 836cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 837cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 838830b8e33SManoj Naik } 839830b8e33SManoj Naik 840cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 8411da177e4SLinus Torvalds { 8428687b63aSAl Viro __be32 *p; 8431da177e4SLinus Torvalds 8441da177e4SLinus Torvalds RESERVE_SPACE(4); 8451da177e4SLinus Torvalds WRITE32(OP_GETFH); 846d017931cSAndy Adamson hdr->nops++; 8471da177e4SLinus Torvalds } 8481da177e4SLinus Torvalds 849cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 8501da177e4SLinus Torvalds { 8518687b63aSAl Viro __be32 *p; 8521da177e4SLinus Torvalds 8531da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 8541da177e4SLinus Torvalds WRITE32(OP_LINK); 8551da177e4SLinus Torvalds WRITE32(name->len); 8561da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 857d017931cSAndy Adamson hdr->nops++; 8581da177e4SLinus Torvalds } 8591da177e4SLinus Torvalds 860911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 861911d1aafSTrond Myklebust { 862911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 863911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 864911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 865911d1aafSTrond Myklebust } 866911d1aafSTrond Myklebust 867911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 868911d1aafSTrond Myklebust { 869911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 870911d1aafSTrond Myklebust return ~(uint64_t)0; 871911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 872911d1aafSTrond Myklebust } 873911d1aafSTrond Myklebust 8741da177e4SLinus Torvalds /* 8751da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 8761da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 8771da177e4SLinus Torvalds */ 878cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 8791da177e4SLinus Torvalds { 8808687b63aSAl Viro __be32 *p; 8811da177e4SLinus Torvalds 8821da177e4SLinus Torvalds RESERVE_SPACE(32); 8831da177e4SLinus Torvalds WRITE32(OP_LOCK); 884911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, args->block)); 885911d1aafSTrond Myklebust WRITE32(args->reclaim); 886911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 887911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 888911d1aafSTrond Myklebust WRITE32(args->new_lock_owner); 889911d1aafSTrond Myklebust if (args->new_lock_owner){ 8909f958ab8STrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 891911d1aafSTrond Myklebust WRITE32(args->open_seqid->sequence->counter); 8928ae20abdSTrond Myklebust WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 893911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 894911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 8959f958ab8STrond Myklebust WRITE32(16); 8969f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 8979f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 8981da177e4SLinus Torvalds } 8991da177e4SLinus Torvalds else { 9008ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE+4); 9018ae20abdSTrond Myklebust WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 902911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 9031da177e4SLinus Torvalds } 904d017931cSAndy Adamson hdr->nops++; 9051da177e4SLinus Torvalds } 9061da177e4SLinus Torvalds 907cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 9081da177e4SLinus Torvalds { 9098687b63aSAl Viro __be32 *p; 9101da177e4SLinus Torvalds 9119f958ab8STrond Myklebust RESERVE_SPACE(52); 9121da177e4SLinus Torvalds WRITE32(OP_LOCKT); 913911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 914911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 915911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 916911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 9179f958ab8STrond Myklebust WRITE32(16); 9189f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 9199f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 920d017931cSAndy Adamson hdr->nops++; 9211da177e4SLinus Torvalds } 9221da177e4SLinus Torvalds 923cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 9241da177e4SLinus Torvalds { 9258687b63aSAl Viro __be32 *p; 9261da177e4SLinus Torvalds 9278ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 9281da177e4SLinus Torvalds WRITE32(OP_LOCKU); 929911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 930911d1aafSTrond Myklebust WRITE32(args->seqid->sequence->counter); 9318ae20abdSTrond Myklebust WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 932911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 933911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 934d017931cSAndy Adamson hdr->nops++; 9351da177e4SLinus Torvalds } 9361da177e4SLinus Torvalds 937cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 9381da177e4SLinus Torvalds { 9391da177e4SLinus Torvalds int len = name->len; 9408687b63aSAl Viro __be32 *p; 9411da177e4SLinus Torvalds 9421da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 9431da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 9441da177e4SLinus Torvalds WRITE32(len); 9451da177e4SLinus Torvalds WRITEMEM(name->name, len); 946d017931cSAndy Adamson hdr->nops++; 9471da177e4SLinus Torvalds } 9481da177e4SLinus Torvalds 949dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 9501da177e4SLinus Torvalds { 9518687b63aSAl Viro __be32 *p; 9521da177e4SLinus Torvalds 9531da177e4SLinus Torvalds RESERVE_SPACE(8); 954dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 9551da177e4SLinus Torvalds case FMODE_READ: 9561da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 9571da177e4SLinus Torvalds break; 9581da177e4SLinus Torvalds case FMODE_WRITE: 9591da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 9601da177e4SLinus Torvalds break; 9611da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 9621da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 9631da177e4SLinus Torvalds break; 9641da177e4SLinus Torvalds default: 965dc0b027dSTrond Myklebust WRITE32(0); 9661da177e4SLinus Torvalds } 9671da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 9681da177e4SLinus Torvalds } 9691da177e4SLinus Torvalds 9701da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9711da177e4SLinus Torvalds { 9728687b63aSAl Viro __be32 *p; 9731da177e4SLinus Torvalds /* 9741da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 9751da177e4SLinus Torvalds * owner 4 = 32 9761da177e4SLinus Torvalds */ 9771da177e4SLinus Torvalds RESERVE_SPACE(8); 9781da177e4SLinus Torvalds WRITE32(OP_OPEN); 979cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 980dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 9819f958ab8STrond Myklebust RESERVE_SPACE(28); 9821da177e4SLinus Torvalds WRITE64(arg->clientid); 9839f958ab8STrond Myklebust WRITE32(16); 9849f958ab8STrond Myklebust WRITEMEM("open id:", 8); 9859f958ab8STrond Myklebust WRITE64(arg->id); 9861da177e4SLinus Torvalds } 9871da177e4SLinus Torvalds 9881da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9891da177e4SLinus Torvalds { 9908687b63aSAl Viro __be32 *p; 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds RESERVE_SPACE(4); 9931da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 9941da177e4SLinus Torvalds case 0: 9951da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 9961da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 9971da177e4SLinus Torvalds break; 9981da177e4SLinus Torvalds default: 9991da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 10001da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 10011da177e4SLinus Torvalds } 10021da177e4SLinus Torvalds } 10031da177e4SLinus Torvalds 10041da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 10051da177e4SLinus Torvalds { 10068687b63aSAl Viro __be32 *p; 10071da177e4SLinus Torvalds 10081da177e4SLinus Torvalds RESERVE_SPACE(4); 10091da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 10101da177e4SLinus Torvalds case 0: 10111da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 10121da177e4SLinus Torvalds break; 10131da177e4SLinus Torvalds default: 10141da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 10151da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 10161da177e4SLinus Torvalds encode_createmode(xdr, arg); 10171da177e4SLinus Torvalds } 10181da177e4SLinus Torvalds } 10191da177e4SLinus Torvalds 1020bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 10211da177e4SLinus Torvalds { 10228687b63aSAl Viro __be32 *p; 10231da177e4SLinus Torvalds 10241da177e4SLinus Torvalds RESERVE_SPACE(4); 10251da177e4SLinus Torvalds switch (delegation_type) { 10261da177e4SLinus Torvalds case 0: 10271da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 10281da177e4SLinus Torvalds break; 10291da177e4SLinus Torvalds case FMODE_READ: 10301da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 10311da177e4SLinus Torvalds break; 10321da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 10331da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 10341da177e4SLinus Torvalds break; 10351da177e4SLinus Torvalds default: 10361da177e4SLinus Torvalds BUG(); 10371da177e4SLinus Torvalds } 10381da177e4SLinus Torvalds } 10391da177e4SLinus Torvalds 10401da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 10411da177e4SLinus Torvalds { 10428687b63aSAl Viro __be32 *p; 10431da177e4SLinus Torvalds 10441da177e4SLinus Torvalds RESERVE_SPACE(4); 10451da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 10461da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10471da177e4SLinus Torvalds } 10481da177e4SLinus Torvalds 1049bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 10501da177e4SLinus Torvalds { 10518687b63aSAl Viro __be32 *p; 10521da177e4SLinus Torvalds 10531da177e4SLinus Torvalds RESERVE_SPACE(4); 10541da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 10551da177e4SLinus Torvalds encode_delegation_type(xdr, type); 10561da177e4SLinus Torvalds } 10571da177e4SLinus Torvalds 10581da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 10591da177e4SLinus Torvalds { 10608687b63aSAl Viro __be32 *p; 10611da177e4SLinus Torvalds 10628ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 10631da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 10648ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 10651da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10661da177e4SLinus Torvalds } 10671da177e4SLinus Torvalds 1068cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 10691da177e4SLinus Torvalds { 10701da177e4SLinus Torvalds encode_openhdr(xdr, arg); 10711da177e4SLinus Torvalds encode_opentype(xdr, arg); 10721da177e4SLinus Torvalds switch (arg->claim) { 10731da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 10741da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 10751da177e4SLinus Torvalds break; 10761da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 10771da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 10781da177e4SLinus Torvalds break; 10791da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 10801da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 10811da177e4SLinus Torvalds break; 10821da177e4SLinus Torvalds default: 10831da177e4SLinus Torvalds BUG(); 10841da177e4SLinus Torvalds } 1085d017931cSAndy Adamson hdr->nops++; 10861da177e4SLinus Torvalds } 10871da177e4SLinus Torvalds 1088cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 10891da177e4SLinus Torvalds { 10908687b63aSAl Viro __be32 *p; 10911da177e4SLinus Torvalds 10928ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 10931da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 10948ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1095cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1096d017931cSAndy Adamson hdr->nops++; 10971da177e4SLinus Torvalds } 10981da177e4SLinus Torvalds 1099cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 11001da177e4SLinus Torvalds { 11018687b63aSAl Viro __be32 *p; 11021da177e4SLinus Torvalds 11038ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 11041da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 11058ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1106cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1107dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1108d017931cSAndy Adamson hdr->nops++; 11091da177e4SLinus Torvalds } 11101da177e4SLinus Torvalds 1111cf8cdbe5SAndy Adamson static void 1112d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 11131da177e4SLinus Torvalds { 11141da177e4SLinus Torvalds int len = fh->size; 11158687b63aSAl Viro __be32 *p; 11161da177e4SLinus Torvalds 11171da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 11181da177e4SLinus Torvalds WRITE32(OP_PUTFH); 11191da177e4SLinus Torvalds WRITE32(len); 11201da177e4SLinus Torvalds WRITEMEM(fh->data, len); 1121d017931cSAndy Adamson hdr->nops++; 11221da177e4SLinus Torvalds } 11231da177e4SLinus Torvalds 1124cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 11251da177e4SLinus Torvalds { 11268687b63aSAl Viro __be32 *p; 11271da177e4SLinus Torvalds 11281da177e4SLinus Torvalds RESERVE_SPACE(4); 11291da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 1130d017931cSAndy Adamson hdr->nops++; 11311da177e4SLinus Torvalds } 11321da177e4SLinus Torvalds 11331da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 11341da177e4SLinus Torvalds { 11351da177e4SLinus Torvalds nfs4_stateid stateid; 11368687b63aSAl Viro __be32 *p; 11371da177e4SLinus Torvalds 11388ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE); 11391da177e4SLinus Torvalds if (ctx->state != NULL) { 11401da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 11418ae20abdSTrond Myklebust WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 11421da177e4SLinus Torvalds } else 11438ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 11441da177e4SLinus Torvalds } 11451da177e4SLinus Torvalds 1146cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 11471da177e4SLinus Torvalds { 11488687b63aSAl Viro __be32 *p; 11491da177e4SLinus Torvalds 11501da177e4SLinus Torvalds RESERVE_SPACE(4); 11511da177e4SLinus Torvalds WRITE32(OP_READ); 11521da177e4SLinus Torvalds 11531da177e4SLinus Torvalds encode_stateid(xdr, args->context); 11541da177e4SLinus Torvalds 11551da177e4SLinus Torvalds RESERVE_SPACE(12); 11561da177e4SLinus Torvalds WRITE64(args->offset); 11571da177e4SLinus Torvalds WRITE32(args->count); 1158d017931cSAndy Adamson hdr->nops++; 11591da177e4SLinus Torvalds } 11601da177e4SLinus Torvalds 1161cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 11621da177e4SLinus Torvalds { 116397d312d0SManoj Naik uint32_t attrs[2] = { 116497d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 116597d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 116697d312d0SManoj Naik }; 11678687b63aSAl Viro __be32 *p; 11681da177e4SLinus Torvalds 11698ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 11701da177e4SLinus Torvalds WRITE32(OP_READDIR); 11711da177e4SLinus Torvalds WRITE64(readdir->cookie); 11728ae20abdSTrond Myklebust WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 11731da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 11741da177e4SLinus Torvalds WRITE32(readdir->count); 11751da177e4SLinus Torvalds WRITE32(2); 117697d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 117797d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 117897d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 117997d312d0SManoj Naik else 118097d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 118197d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 118297d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1183d017931cSAndy Adamson hdr->nops++; 118444109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 118544109241SFred Isaman __func__, 1186eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1187eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1188eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1189eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1190eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 11911da177e4SLinus Torvalds } 11921da177e4SLinus Torvalds 1193cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 11941da177e4SLinus Torvalds { 11958687b63aSAl Viro __be32 *p; 11961da177e4SLinus Torvalds 11971da177e4SLinus Torvalds RESERVE_SPACE(4); 11981da177e4SLinus Torvalds WRITE32(OP_READLINK); 1199d017931cSAndy Adamson hdr->nops++; 12001da177e4SLinus Torvalds } 12011da177e4SLinus Torvalds 1202cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12031da177e4SLinus Torvalds { 12048687b63aSAl Viro __be32 *p; 12051da177e4SLinus Torvalds 12061da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 12071da177e4SLinus Torvalds WRITE32(OP_REMOVE); 12081da177e4SLinus Torvalds WRITE32(name->len); 12091da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 1210d017931cSAndy Adamson hdr->nops++; 12111da177e4SLinus Torvalds } 12121da177e4SLinus Torvalds 1213cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 12141da177e4SLinus Torvalds { 12158687b63aSAl Viro __be32 *p; 12161da177e4SLinus Torvalds 12171da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 12181da177e4SLinus Torvalds WRITE32(OP_RENAME); 12191da177e4SLinus Torvalds WRITE32(oldname->len); 12201da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 12211da177e4SLinus Torvalds 12221da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 12231da177e4SLinus Torvalds WRITE32(newname->len); 12241da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 1225d017931cSAndy Adamson hdr->nops++; 12261da177e4SLinus Torvalds } 12271da177e4SLinus Torvalds 1228cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 12291da177e4SLinus Torvalds { 12308687b63aSAl Viro __be32 *p; 12311da177e4SLinus Torvalds 12321da177e4SLinus Torvalds RESERVE_SPACE(12); 12331da177e4SLinus Torvalds WRITE32(OP_RENEW); 12341da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 1235d017931cSAndy Adamson hdr->nops++; 12361da177e4SLinus Torvalds } 12371da177e4SLinus Torvalds 1238cf8cdbe5SAndy Adamson static void 1239d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 124056ae19f3STrond Myklebust { 12418687b63aSAl Viro __be32 *p; 124256ae19f3STrond Myklebust 124356ae19f3STrond Myklebust RESERVE_SPACE(4); 124456ae19f3STrond Myklebust WRITE32(OP_RESTOREFH); 1245d017931cSAndy Adamson hdr->nops++; 124656ae19f3STrond Myklebust } 124756ae19f3STrond Myklebust 124856ae19f3STrond Myklebust static int 1249d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 125023ec6965SJ. Bruce Fields { 12518687b63aSAl Viro __be32 *p; 125223ec6965SJ. Bruce Fields 12538ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 125423ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 12558ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 125623ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 125723ec6965SJ. Bruce Fields WRITE32(1); 125823ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 125923ec6965SJ. Bruce Fields if (arg->acl_len % 4) 126023ec6965SJ. Bruce Fields return -EINVAL; 126123ec6965SJ. Bruce Fields RESERVE_SPACE(4); 126223ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 126323ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1264d017931cSAndy Adamson hdr->nops++; 126523ec6965SJ. Bruce Fields return 0; 126623ec6965SJ. Bruce Fields } 126723ec6965SJ. Bruce Fields 1268cf8cdbe5SAndy Adamson static void 1269d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12701da177e4SLinus Torvalds { 12718687b63aSAl Viro __be32 *p; 12721da177e4SLinus Torvalds 12731da177e4SLinus Torvalds RESERVE_SPACE(4); 12741da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 1275d017931cSAndy Adamson hdr->nops++; 12761da177e4SLinus Torvalds } 12771da177e4SLinus Torvalds 1278cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 12791da177e4SLinus Torvalds { 12808687b63aSAl Viro __be32 *p; 12811da177e4SLinus Torvalds 12828ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 12831da177e4SLinus Torvalds WRITE32(OP_SETATTR); 12848ae20abdSTrond Myklebust WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 1285d017931cSAndy Adamson hdr->nops++; 1286cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 12871da177e4SLinus Torvalds } 12881da177e4SLinus Torvalds 1289cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 12901da177e4SLinus Torvalds { 12918687b63aSAl Viro __be32 *p; 12921da177e4SLinus Torvalds 12938ae20abdSTrond Myklebust RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 12941da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 12958ae20abdSTrond Myklebust WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 12961da177e4SLinus Torvalds 12971da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 12981da177e4SLinus Torvalds RESERVE_SPACE(4); 12991da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 13001da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 13011da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 13021da177e4SLinus Torvalds RESERVE_SPACE(4); 13031da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 1304d017931cSAndy Adamson hdr->nops++; 13051da177e4SLinus Torvalds } 13061da177e4SLinus Torvalds 1307cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 13081da177e4SLinus Torvalds { 13098687b63aSAl Viro __be32 *p; 13101da177e4SLinus Torvalds 13118ae20abdSTrond Myklebust RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 13121da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 13131da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 13148ae20abdSTrond Myklebust WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1315d017931cSAndy Adamson hdr->nops++; 13161da177e4SLinus Torvalds } 13171da177e4SLinus Torvalds 1318cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 13191da177e4SLinus Torvalds { 13208687b63aSAl Viro __be32 *p; 13211da177e4SLinus Torvalds 13221da177e4SLinus Torvalds RESERVE_SPACE(4); 13231da177e4SLinus Torvalds WRITE32(OP_WRITE); 13241da177e4SLinus Torvalds 13251da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13261da177e4SLinus Torvalds 13271da177e4SLinus Torvalds RESERVE_SPACE(16); 13281da177e4SLinus Torvalds WRITE64(args->offset); 13291da177e4SLinus Torvalds WRITE32(args->stable); 13301da177e4SLinus Torvalds WRITE32(args->count); 13311da177e4SLinus Torvalds 13321da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1333d017931cSAndy Adamson hdr->nops++; 13341da177e4SLinus Torvalds } 13351da177e4SLinus Torvalds 1336cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 13371da177e4SLinus Torvalds { 13388687b63aSAl Viro __be32 *p; 13391da177e4SLinus Torvalds 13408ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 13411da177e4SLinus Torvalds 13421da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 13438ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1344d017931cSAndy Adamson hdr->nops++; 13451da177e4SLinus Torvalds } 13461da177e4SLinus Torvalds /* 13471da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 13481da177e4SLinus Torvalds */ 13491da177e4SLinus Torvalds 13501da177e4SLinus Torvalds /* 13511da177e4SLinus Torvalds * Encode an ACCESS request 13521da177e4SLinus Torvalds */ 13538687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 13541da177e4SLinus Torvalds { 13551da177e4SLinus Torvalds struct xdr_stream xdr; 13561da177e4SLinus Torvalds struct compound_hdr hdr = { 1357d017931cSAndy Adamson .nops = 0, 13581da177e4SLinus Torvalds }; 13591da177e4SLinus Torvalds 13601da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13611da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1362cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1363cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1364cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1365d017931cSAndy Adamson encode_nops(&hdr); 1366cf8cdbe5SAndy Adamson return 0; 13671da177e4SLinus Torvalds } 13681da177e4SLinus Torvalds 13691da177e4SLinus Torvalds /* 13701da177e4SLinus Torvalds * Encode LOOKUP request 13711da177e4SLinus Torvalds */ 13728687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 13731da177e4SLinus Torvalds { 13741da177e4SLinus Torvalds struct xdr_stream xdr; 13751da177e4SLinus Torvalds struct compound_hdr hdr = { 1376d017931cSAndy Adamson .nops = 0, 13771da177e4SLinus Torvalds }; 13781da177e4SLinus Torvalds 13791da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13801da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1381cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1382cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1383cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1384cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1385d017931cSAndy Adamson encode_nops(&hdr); 1386cf8cdbe5SAndy Adamson return 0; 13871da177e4SLinus Torvalds } 13881da177e4SLinus Torvalds 13891da177e4SLinus Torvalds /* 13901da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 13911da177e4SLinus Torvalds */ 13928687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 13931da177e4SLinus Torvalds { 13941da177e4SLinus Torvalds struct xdr_stream xdr; 13951da177e4SLinus Torvalds struct compound_hdr hdr = { 1396d017931cSAndy Adamson .nops = 0, 13971da177e4SLinus Torvalds }; 13981da177e4SLinus Torvalds 13991da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14001da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1401cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1402cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1403cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1404d017931cSAndy Adamson encode_nops(&hdr); 1405cf8cdbe5SAndy Adamson return 0; 14061da177e4SLinus Torvalds } 14071da177e4SLinus Torvalds 14081da177e4SLinus Torvalds /* 14091da177e4SLinus Torvalds * Encode REMOVE request 14101da177e4SLinus Torvalds */ 14114fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 14121da177e4SLinus Torvalds { 14131da177e4SLinus Torvalds struct xdr_stream xdr; 14141da177e4SLinus Torvalds struct compound_hdr hdr = { 1415d017931cSAndy Adamson .nops = 0, 14161da177e4SLinus Torvalds }; 14171da177e4SLinus Torvalds 14181da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14191da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1420cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1421cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1422cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1423d017931cSAndy Adamson encode_nops(&hdr); 1424cf8cdbe5SAndy Adamson return 0; 14251da177e4SLinus Torvalds } 14261da177e4SLinus Torvalds 14271da177e4SLinus Torvalds /* 14281da177e4SLinus Torvalds * Encode RENAME request 14291da177e4SLinus Torvalds */ 14308687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 14311da177e4SLinus Torvalds { 14321da177e4SLinus Torvalds struct xdr_stream xdr; 14331da177e4SLinus Torvalds struct compound_hdr hdr = { 1434d017931cSAndy Adamson .nops = 0, 14351da177e4SLinus Torvalds }; 14361da177e4SLinus Torvalds 14371da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14381da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1439cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1440cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1441cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1442cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1443cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1444cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1445cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1446d017931cSAndy Adamson encode_nops(&hdr); 1447cf8cdbe5SAndy Adamson return 0; 14481da177e4SLinus Torvalds } 14491da177e4SLinus Torvalds 14501da177e4SLinus Torvalds /* 14511da177e4SLinus Torvalds * Encode LINK request 14521da177e4SLinus Torvalds */ 14538687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 14541da177e4SLinus Torvalds { 14551da177e4SLinus Torvalds struct xdr_stream xdr; 14561da177e4SLinus Torvalds struct compound_hdr hdr = { 1457d017931cSAndy Adamson .nops = 0, 14581da177e4SLinus Torvalds }; 14591da177e4SLinus Torvalds 14601da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14611da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1462cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1463cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1464cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1465cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1466cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1467cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1468cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1469d017931cSAndy Adamson encode_nops(&hdr); 1470cf8cdbe5SAndy Adamson return 0; 14711da177e4SLinus Torvalds } 14721da177e4SLinus Torvalds 14731da177e4SLinus Torvalds /* 14741da177e4SLinus Torvalds * Encode CREATE request 14751da177e4SLinus Torvalds */ 14768687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 14771da177e4SLinus Torvalds { 14781da177e4SLinus Torvalds struct xdr_stream xdr; 14791da177e4SLinus Torvalds struct compound_hdr hdr = { 1480d017931cSAndy Adamson .nops = 0, 14811da177e4SLinus Torvalds }; 14821da177e4SLinus Torvalds 14831da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14841da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1485cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1486cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1487cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1488cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1489cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1490cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1491cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1492d017931cSAndy Adamson encode_nops(&hdr); 1493cf8cdbe5SAndy Adamson return 0; 14941da177e4SLinus Torvalds } 14951da177e4SLinus Torvalds 14961da177e4SLinus Torvalds /* 14971da177e4SLinus Torvalds * Encode SYMLINK request 14981da177e4SLinus Torvalds */ 14998687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 15001da177e4SLinus Torvalds { 15011da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 15021da177e4SLinus Torvalds } 15031da177e4SLinus Torvalds 15041da177e4SLinus Torvalds /* 15051da177e4SLinus Torvalds * Encode GETATTR request 15061da177e4SLinus Torvalds */ 15078687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 15081da177e4SLinus Torvalds { 15091da177e4SLinus Torvalds struct xdr_stream xdr; 15101da177e4SLinus Torvalds struct compound_hdr hdr = { 1511d017931cSAndy Adamson .nops = 0, 15121da177e4SLinus Torvalds }; 15131da177e4SLinus Torvalds 15141da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15151da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1516cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1517cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1518d017931cSAndy Adamson encode_nops(&hdr); 1519cf8cdbe5SAndy Adamson return 0; 15201da177e4SLinus Torvalds } 15211da177e4SLinus Torvalds 15221da177e4SLinus Torvalds /* 15231da177e4SLinus Torvalds * Encode a CLOSE request 15241da177e4SLinus Torvalds */ 15258687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 15261da177e4SLinus Torvalds { 15271da177e4SLinus Torvalds struct xdr_stream xdr; 15281da177e4SLinus Torvalds struct compound_hdr hdr = { 1529d017931cSAndy Adamson .nops = 0, 15301da177e4SLinus Torvalds }; 15311da177e4SLinus Torvalds 15321da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15331da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1534cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1535cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1536cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1537d017931cSAndy Adamson encode_nops(&hdr); 1538cf8cdbe5SAndy Adamson return 0; 15391da177e4SLinus Torvalds } 15401da177e4SLinus Torvalds 15411da177e4SLinus Torvalds /* 15421da177e4SLinus Torvalds * Encode an OPEN request 15431da177e4SLinus Torvalds */ 15448687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 15451da177e4SLinus Torvalds { 15461da177e4SLinus Torvalds struct xdr_stream xdr; 15471da177e4SLinus Torvalds struct compound_hdr hdr = { 1548d017931cSAndy Adamson .nops = 0, 15491da177e4SLinus Torvalds }; 15501da177e4SLinus Torvalds 15511da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15521da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1553cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1554cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1555cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1556cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1557cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1558cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1559cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1560d017931cSAndy Adamson encode_nops(&hdr); 1561cf8cdbe5SAndy Adamson return 0; 15621da177e4SLinus Torvalds } 15631da177e4SLinus Torvalds 15641da177e4SLinus Torvalds /* 15651da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 15661da177e4SLinus Torvalds */ 15678687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 15681da177e4SLinus Torvalds { 15691da177e4SLinus Torvalds struct xdr_stream xdr; 15701da177e4SLinus Torvalds struct compound_hdr hdr = { 1571d017931cSAndy Adamson .nops = 0, 15721da177e4SLinus Torvalds }; 15731da177e4SLinus Torvalds 15741da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15751da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1576cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1577cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1578d017931cSAndy Adamson encode_nops(&hdr); 1579cf8cdbe5SAndy Adamson return 0; 15801da177e4SLinus Torvalds } 15811da177e4SLinus Torvalds 15821da177e4SLinus Torvalds /* 15831da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 15841da177e4SLinus Torvalds */ 15858687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(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); 15931da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1594cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1595cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1596cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1597d017931cSAndy Adamson encode_nops(&hdr); 1598cf8cdbe5SAndy Adamson return 0; 15991da177e4SLinus Torvalds } 16001da177e4SLinus Torvalds 16011da177e4SLinus Torvalds /* 16021da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 16031da177e4SLinus Torvalds */ 16048687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 16051da177e4SLinus Torvalds { 16061da177e4SLinus Torvalds struct xdr_stream xdr; 16071da177e4SLinus Torvalds struct compound_hdr hdr = { 1608d017931cSAndy Adamson .nops = 0, 16091da177e4SLinus Torvalds }; 16101da177e4SLinus Torvalds 16111da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16121da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1613cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1614cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1615cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1616d017931cSAndy Adamson encode_nops(&hdr); 1617cf8cdbe5SAndy Adamson return 0; 16181da177e4SLinus Torvalds } 16191da177e4SLinus Torvalds 16201da177e4SLinus Torvalds /* 16211da177e4SLinus Torvalds * Encode a LOCK request 16221da177e4SLinus Torvalds */ 16238687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 16241da177e4SLinus Torvalds { 16251da177e4SLinus Torvalds struct xdr_stream xdr; 16261da177e4SLinus Torvalds struct compound_hdr hdr = { 1627d017931cSAndy Adamson .nops = 0, 16281da177e4SLinus Torvalds }; 16291da177e4SLinus Torvalds 16301da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16311da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1632cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1633cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 1634d017931cSAndy Adamson encode_nops(&hdr); 1635cf8cdbe5SAndy Adamson return 0; 16361da177e4SLinus Torvalds } 16371da177e4SLinus Torvalds 16381da177e4SLinus Torvalds /* 16391da177e4SLinus Torvalds * Encode a LOCKT request 16401da177e4SLinus Torvalds */ 16418687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 16421da177e4SLinus Torvalds { 16431da177e4SLinus Torvalds struct xdr_stream xdr; 16441da177e4SLinus Torvalds struct compound_hdr hdr = { 1645d017931cSAndy Adamson .nops = 0, 16461da177e4SLinus Torvalds }; 16471da177e4SLinus Torvalds 16481da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16491da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1650cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1651cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 1652d017931cSAndy Adamson encode_nops(&hdr); 1653cf8cdbe5SAndy Adamson return 0; 16541da177e4SLinus Torvalds } 16551da177e4SLinus Torvalds 16561da177e4SLinus Torvalds /* 16571da177e4SLinus Torvalds * Encode a LOCKU request 16581da177e4SLinus Torvalds */ 16598687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 16601da177e4SLinus Torvalds { 16611da177e4SLinus Torvalds struct xdr_stream xdr; 16621da177e4SLinus Torvalds struct compound_hdr hdr = { 1663d017931cSAndy Adamson .nops = 0, 16641da177e4SLinus Torvalds }; 16651da177e4SLinus Torvalds 16661da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16671da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1668cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1669cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 1670d017931cSAndy Adamson encode_nops(&hdr); 1671cf8cdbe5SAndy Adamson return 0; 16721da177e4SLinus Torvalds } 16731da177e4SLinus Torvalds 16741da177e4SLinus Torvalds /* 16751da177e4SLinus Torvalds * Encode a READLINK request 16761da177e4SLinus Torvalds */ 16778687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 16781da177e4SLinus Torvalds { 16791da177e4SLinus Torvalds struct xdr_stream xdr; 16801da177e4SLinus Torvalds struct compound_hdr hdr = { 1681d017931cSAndy Adamson .nops = 0, 16821da177e4SLinus Torvalds }; 1683e3a535e1STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1684e3a535e1STrond Myklebust unsigned int replen; 16851da177e4SLinus Torvalds 16861da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16871da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1688cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1689cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 1690e3a535e1STrond Myklebust 1691e3a535e1STrond Myklebust /* set up reply kvec 1692e3a535e1STrond Myklebust * toplevel_status + taglen + rescount + OP_PUTFH + status 1693e3a535e1STrond Myklebust * + OP_READLINK + status + string length = 8 1694e3a535e1STrond Myklebust */ 1695e3a535e1STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2; 1696e3a535e1STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 1697e3a535e1STrond Myklebust args->pgbase, args->pglen); 1698d017931cSAndy Adamson encode_nops(&hdr); 1699cf8cdbe5SAndy Adamson return 0; 17001da177e4SLinus Torvalds } 17011da177e4SLinus Torvalds 17021da177e4SLinus Torvalds /* 17031da177e4SLinus Torvalds * Encode a READDIR request 17041da177e4SLinus Torvalds */ 17058687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 17061da177e4SLinus Torvalds { 17071da177e4SLinus Torvalds struct xdr_stream xdr; 17081da177e4SLinus Torvalds struct compound_hdr hdr = { 1709d017931cSAndy Adamson .nops = 0, 17101da177e4SLinus Torvalds }; 1711d6ac02dfSTrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1712d6ac02dfSTrond Myklebust int replen; 17131da177e4SLinus Torvalds 17141da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17151da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1716cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1717cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 1718d6ac02dfSTrond Myklebust 1719d6ac02dfSTrond Myklebust /* set up reply kvec 1720d6ac02dfSTrond Myklebust * toplevel_status + taglen + rescount + OP_PUTFH + status 1721d6ac02dfSTrond Myklebust * + OP_READDIR + status + verifer(2) = 9 1722d6ac02dfSTrond Myklebust */ 1723d6ac02dfSTrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2; 1724d6ac02dfSTrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 1725d6ac02dfSTrond Myklebust args->pgbase, args->count); 1726d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 17273110ff80SHarvey Harrison __func__, replen, args->pages, 1728d6ac02dfSTrond Myklebust args->pgbase, args->count); 1729d017931cSAndy Adamson encode_nops(&hdr); 1730cf8cdbe5SAndy Adamson return 0; 17311da177e4SLinus Torvalds } 17321da177e4SLinus Torvalds 17331da177e4SLinus Torvalds /* 17341da177e4SLinus Torvalds * Encode a READ request 17351da177e4SLinus Torvalds */ 17368687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 17371da177e4SLinus Torvalds { 17381be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 17391da177e4SLinus Torvalds struct xdr_stream xdr; 17401da177e4SLinus Torvalds struct compound_hdr hdr = { 1741d017931cSAndy Adamson .nops = 0, 17421da177e4SLinus Torvalds }; 1743cf8cdbe5SAndy Adamson int replen; 17441da177e4SLinus Torvalds 17451da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17461da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1747cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1748cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 17491da177e4SLinus Torvalds 17501da177e4SLinus Torvalds /* set up reply kvec 17511da177e4SLinus Torvalds * toplevel status + taglen=0 + rescount + OP_PUTFH + status 17521da177e4SLinus Torvalds * + OP_READ + status + eof + datalen = 9 17531da177e4SLinus Torvalds */ 17541da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; 17551da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, 17561da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 17574f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 1758d017931cSAndy Adamson encode_nops(&hdr); 1759cf8cdbe5SAndy Adamson return 0; 17601da177e4SLinus Torvalds } 17611da177e4SLinus Torvalds 17621da177e4SLinus Torvalds /* 17631da177e4SLinus Torvalds * Encode an SETATTR request 17641da177e4SLinus Torvalds */ 17658687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 17661da177e4SLinus Torvalds { 17671da177e4SLinus Torvalds struct xdr_stream xdr; 17681da177e4SLinus Torvalds struct compound_hdr hdr = { 1769d017931cSAndy Adamson .nops = 0, 17701da177e4SLinus Torvalds }; 17711da177e4SLinus Torvalds 17721da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17731da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1774cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1775cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 1776cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1777d017931cSAndy Adamson encode_nops(&hdr); 1778cf8cdbe5SAndy Adamson return 0; 17791da177e4SLinus Torvalds } 17801da177e4SLinus Torvalds 17811da177e4SLinus Torvalds /* 1782029d105eSJ. Bruce Fields * Encode a GETACL request 1783029d105eSJ. Bruce Fields */ 1784029d105eSJ. Bruce Fields static int 17858687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 1786029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 1787029d105eSJ. Bruce Fields { 1788029d105eSJ. Bruce Fields struct xdr_stream xdr; 17891be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1790029d105eSJ. Bruce Fields struct compound_hdr hdr = { 1791d017931cSAndy Adamson .nops = 0, 1792029d105eSJ. Bruce Fields }; 1793cf8cdbe5SAndy Adamson int replen; 1794029d105eSJ. Bruce Fields 1795029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1796029d105eSJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 1797cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1798cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 1799cf8cdbe5SAndy Adamson 1800029d105eSJ. Bruce Fields /* set up reply buffer: */ 1801029d105eSJ. Bruce Fields replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; 1802029d105eSJ. Bruce Fields xdr_inline_pages(&req->rq_rcv_buf, replen, 1803029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 1804d017931cSAndy Adamson encode_nops(&hdr); 1805cf8cdbe5SAndy Adamson return 0; 1806029d105eSJ. Bruce Fields } 1807029d105eSJ. Bruce Fields 1808029d105eSJ. Bruce Fields /* 18091da177e4SLinus Torvalds * Encode a WRITE request 18101da177e4SLinus Torvalds */ 18118687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 18121da177e4SLinus Torvalds { 18131da177e4SLinus Torvalds struct xdr_stream xdr; 18141da177e4SLinus Torvalds struct compound_hdr hdr = { 1815d017931cSAndy Adamson .nops = 0, 18161da177e4SLinus Torvalds }; 18171da177e4SLinus Torvalds 18181da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18191da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1820cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1821cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 18224f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 1823cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1824d017931cSAndy Adamson encode_nops(&hdr); 1825cf8cdbe5SAndy Adamson return 0; 18261da177e4SLinus Torvalds } 18271da177e4SLinus Torvalds 18281da177e4SLinus Torvalds /* 18291da177e4SLinus Torvalds * a COMMIT request 18301da177e4SLinus Torvalds */ 18318687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 18321da177e4SLinus Torvalds { 18331da177e4SLinus Torvalds struct xdr_stream xdr; 18341da177e4SLinus Torvalds struct compound_hdr hdr = { 1835d017931cSAndy Adamson .nops = 0, 18361da177e4SLinus Torvalds }; 18371da177e4SLinus Torvalds 18381da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18391da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1840cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1841cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 1842cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1843d017931cSAndy Adamson encode_nops(&hdr); 1844cf8cdbe5SAndy Adamson return 0; 18451da177e4SLinus Torvalds } 18461da177e4SLinus Torvalds 18471da177e4SLinus Torvalds /* 18481da177e4SLinus Torvalds * FSINFO request 18491da177e4SLinus Torvalds */ 18508687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 18511da177e4SLinus Torvalds { 18521da177e4SLinus Torvalds struct xdr_stream xdr; 18531da177e4SLinus Torvalds struct compound_hdr hdr = { 1854d017931cSAndy Adamson .nops = 0, 18551da177e4SLinus Torvalds }; 18561da177e4SLinus Torvalds 18571da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18581da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1859cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1860cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 1861d017931cSAndy Adamson encode_nops(&hdr); 1862cf8cdbe5SAndy Adamson return 0; 18631da177e4SLinus Torvalds } 18641da177e4SLinus Torvalds 18651da177e4SLinus Torvalds /* 18661da177e4SLinus Torvalds * a PATHCONF request 18671da177e4SLinus Torvalds */ 18688687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_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); 18761da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1877cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1878cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 1879d017931cSAndy Adamson &hdr); 1880d017931cSAndy Adamson encode_nops(&hdr); 1881cf8cdbe5SAndy Adamson return 0; 18821da177e4SLinus Torvalds } 18831da177e4SLinus Torvalds 18841da177e4SLinus Torvalds /* 18851da177e4SLinus Torvalds * a STATFS request 18861da177e4SLinus Torvalds */ 18878687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 18881da177e4SLinus Torvalds { 18891da177e4SLinus Torvalds struct xdr_stream xdr; 18901da177e4SLinus Torvalds struct compound_hdr hdr = { 1891d017931cSAndy Adamson .nops = 0, 18921da177e4SLinus Torvalds }; 18931da177e4SLinus Torvalds 18941da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18951da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1896cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1897cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 1898d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 1899d017931cSAndy Adamson encode_nops(&hdr); 1900cf8cdbe5SAndy Adamson return 0; 19011da177e4SLinus Torvalds } 19021da177e4SLinus Torvalds 19031da177e4SLinus Torvalds /* 19041da177e4SLinus Torvalds * GETATTR_BITMAP request 19051da177e4SLinus Torvalds */ 19068687b63aSAl Viro static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) 19071da177e4SLinus Torvalds { 19081da177e4SLinus Torvalds struct xdr_stream xdr; 19091da177e4SLinus Torvalds struct compound_hdr hdr = { 1910d017931cSAndy Adamson .nops = 0, 19111da177e4SLinus Torvalds }; 19121da177e4SLinus Torvalds 19131da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19141da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1915cf8cdbe5SAndy Adamson encode_putfh(&xdr, fhandle, &hdr); 1916cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 19171da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 19181da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 1919d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 1920d017931cSAndy Adamson encode_nops(&hdr); 1921cf8cdbe5SAndy Adamson return 0; 19221da177e4SLinus Torvalds } 19231da177e4SLinus Torvalds 19241da177e4SLinus Torvalds /* 19251da177e4SLinus Torvalds * a RENEW request 19261da177e4SLinus Torvalds */ 19278687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 19281da177e4SLinus Torvalds { 19291da177e4SLinus Torvalds struct xdr_stream xdr; 19301da177e4SLinus Torvalds struct compound_hdr hdr = { 1931d017931cSAndy Adamson .nops = 0, 19321da177e4SLinus Torvalds }; 19331da177e4SLinus Torvalds 19341da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19351da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1936cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 1937d017931cSAndy Adamson encode_nops(&hdr); 1938cf8cdbe5SAndy Adamson return 0; 19391da177e4SLinus Torvalds } 19401da177e4SLinus Torvalds 19411da177e4SLinus Torvalds /* 19421da177e4SLinus Torvalds * a SETCLIENTID request 19431da177e4SLinus Torvalds */ 19448687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 19451da177e4SLinus Torvalds { 19461da177e4SLinus Torvalds struct xdr_stream xdr; 19471da177e4SLinus Torvalds struct compound_hdr hdr = { 1948d017931cSAndy Adamson .nops = 0, 19491da177e4SLinus Torvalds }; 19501da177e4SLinus Torvalds 19511da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19521da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1953cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 1954d017931cSAndy Adamson encode_nops(&hdr); 1955cf8cdbe5SAndy Adamson return 0; 19561da177e4SLinus Torvalds } 19571da177e4SLinus Torvalds 19581da177e4SLinus Torvalds /* 19591da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 19601da177e4SLinus Torvalds */ 19618687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 19621da177e4SLinus Torvalds { 19631da177e4SLinus Torvalds struct xdr_stream xdr; 19641da177e4SLinus Torvalds struct compound_hdr hdr = { 1965d017931cSAndy Adamson .nops = 0, 19661da177e4SLinus Torvalds }; 19671da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 19681da177e4SLinus Torvalds 19691da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19701da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1971cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 1972cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1973cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 1974d017931cSAndy Adamson encode_nops(&hdr); 1975cf8cdbe5SAndy Adamson return 0; 19761da177e4SLinus Torvalds } 19771da177e4SLinus Torvalds 19781da177e4SLinus Torvalds /* 19791da177e4SLinus Torvalds * DELEGRETURN request 19801da177e4SLinus Torvalds */ 19818687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 19821da177e4SLinus Torvalds { 19831da177e4SLinus Torvalds struct xdr_stream xdr; 19841da177e4SLinus Torvalds struct compound_hdr hdr = { 1985d017931cSAndy Adamson .nops = 0, 19861da177e4SLinus Torvalds }; 19871da177e4SLinus Torvalds 19881da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19891da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1990cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 1991cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 1992cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1993d017931cSAndy Adamson encode_nops(&hdr); 1994cf8cdbe5SAndy Adamson return 0; 19951da177e4SLinus Torvalds } 19961da177e4SLinus Torvalds 19971da177e4SLinus Torvalds /* 1998683b57b4STrond Myklebust * Encode FS_LOCATIONS request 1999683b57b4STrond Myklebust */ 20008687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2001683b57b4STrond Myklebust { 2002683b57b4STrond Myklebust struct xdr_stream xdr; 2003683b57b4STrond Myklebust struct compound_hdr hdr = { 2004d017931cSAndy Adamson .nops = 0, 2005683b57b4STrond Myklebust }; 20061be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 2007683b57b4STrond Myklebust int replen; 2008683b57b4STrond Myklebust 2009683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2010683b57b4STrond Myklebust encode_compound_hdr(&xdr, &hdr); 2011cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2012cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 2013cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2014cf8cdbe5SAndy Adamson 2015683b57b4STrond Myklebust /* set up reply 2016830b8e33SManoj Naik * toplevel_status + OP_PUTFH + status 2017683b57b4STrond Myklebust * + OP_LOOKUP + status + OP_GETATTR + status = 7 2018683b57b4STrond Myklebust */ 2019683b57b4STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; 2020683b57b4STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, 2021683b57b4STrond Myklebust 0, PAGE_SIZE); 2022d017931cSAndy Adamson encode_nops(&hdr); 2023cf8cdbe5SAndy Adamson return 0; 2024683b57b4STrond Myklebust } 2025683b57b4STrond Myklebust 2026683b57b4STrond Myklebust /* 20271da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 20281da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 20291da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 20301da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 20311da177e4SLinus Torvalds * 20321da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 20331da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 20341da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 20351da177e4SLinus Torvalds */ 20361da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 20371da177e4SLinus Torvalds #define READ64(x) do { \ 20381da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 20391da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 20401da177e4SLinus Torvalds } while (0) 20411da177e4SLinus Torvalds #define READTIME(x) do { \ 20421da177e4SLinus Torvalds p++; \ 20431da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 20441da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 20451da177e4SLinus Torvalds } while (0) 20461da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 20471da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 20481da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 20491da177e4SLinus Torvalds } while (0) 20501da177e4SLinus Torvalds 20511da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 20521da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2053e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2054fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 20553110ff80SHarvey Harrison " buffer\n", __func__); \ 2056fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 20573110ff80SHarvey Harrison __func__, xdr->p, nbytes, xdr->end); \ 20581da177e4SLinus Torvalds return -EIO; \ 20591da177e4SLinus Torvalds } \ 20601da177e4SLinus Torvalds } while (0) 20611da177e4SLinus Torvalds 2062683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 20631da177e4SLinus Torvalds { 20648687b63aSAl Viro __be32 *p; 20651da177e4SLinus Torvalds 20661da177e4SLinus Torvalds READ_BUF(4); 20671da177e4SLinus Torvalds READ32(*len); 20681da177e4SLinus Torvalds READ_BUF(*len); 20691da177e4SLinus Torvalds *string = (char *)p; 20701da177e4SLinus Torvalds return 0; 20711da177e4SLinus Torvalds } 20721da177e4SLinus Torvalds 20731da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 20741da177e4SLinus Torvalds { 20758687b63aSAl Viro __be32 *p; 20761da177e4SLinus Torvalds 20771da177e4SLinus Torvalds READ_BUF(8); 20781da177e4SLinus Torvalds READ32(hdr->status); 20791da177e4SLinus Torvalds READ32(hdr->taglen); 20801da177e4SLinus Torvalds 20811da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 20821da177e4SLinus Torvalds hdr->tag = (char *)p; 20831da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 20841da177e4SLinus Torvalds READ32(hdr->nops); 2085aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2086aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 20871da177e4SLinus Torvalds return 0; 20881da177e4SLinus Torvalds } 20891da177e4SLinus Torvalds 20901da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 20911da177e4SLinus Torvalds { 20928687b63aSAl Viro __be32 *p; 20931da177e4SLinus Torvalds uint32_t opnum; 20941da177e4SLinus Torvalds int32_t nfserr; 20951da177e4SLinus Torvalds 20961da177e4SLinus Torvalds READ_BUF(8); 20971da177e4SLinus Torvalds READ32(opnum); 20981da177e4SLinus Torvalds if (opnum != expected) { 2099fe82a183SChuck Lever dprintk("nfs: Server returned operation" 21001da177e4SLinus Torvalds " %d but we issued a request for %d\n", 21011da177e4SLinus Torvalds opnum, expected); 21021da177e4SLinus Torvalds return -EIO; 21031da177e4SLinus Torvalds } 21041da177e4SLinus Torvalds READ32(nfserr); 21051da177e4SLinus Torvalds if (nfserr != NFS_OK) 2106856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 21071da177e4SLinus Torvalds return 0; 21081da177e4SLinus Torvalds } 21091da177e4SLinus Torvalds 21101da177e4SLinus Torvalds /* Dummy routine */ 2111adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 21121da177e4SLinus Torvalds { 21138687b63aSAl Viro __be32 *p; 2114683b57b4STrond Myklebust unsigned int strlen; 21151da177e4SLinus Torvalds char *str; 21161da177e4SLinus Torvalds 21171da177e4SLinus Torvalds READ_BUF(12); 21181da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 21191da177e4SLinus Torvalds } 21201da177e4SLinus Torvalds 21211da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 21221da177e4SLinus Torvalds { 21238687b63aSAl Viro uint32_t bmlen; 21248687b63aSAl Viro __be32 *p; 21251da177e4SLinus Torvalds 21261da177e4SLinus Torvalds READ_BUF(4); 21271da177e4SLinus Torvalds READ32(bmlen); 21281da177e4SLinus Torvalds 21291da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 21301da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 21311da177e4SLinus Torvalds if (bmlen > 0) { 21321da177e4SLinus Torvalds READ32(bitmap[0]); 21331da177e4SLinus Torvalds if (bmlen > 1) 21341da177e4SLinus Torvalds READ32(bitmap[1]); 21351da177e4SLinus Torvalds } 21361da177e4SLinus Torvalds return 0; 21371da177e4SLinus Torvalds } 21381da177e4SLinus Torvalds 21398687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 21401da177e4SLinus Torvalds { 21418687b63aSAl Viro __be32 *p; 21421da177e4SLinus Torvalds 21431da177e4SLinus Torvalds READ_BUF(4); 21441da177e4SLinus Torvalds READ32(*attrlen); 21451da177e4SLinus Torvalds *savep = xdr->p; 21461da177e4SLinus Torvalds return 0; 21471da177e4SLinus Torvalds } 21481da177e4SLinus Torvalds 21491da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 21501da177e4SLinus Torvalds { 21511da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 21521da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 21531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 21541da177e4SLinus Torvalds } else 21551da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 215644109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 21571da177e4SLinus Torvalds return 0; 21581da177e4SLinus Torvalds } 21591da177e4SLinus Torvalds 21601da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 21611da177e4SLinus Torvalds { 21628687b63aSAl Viro __be32 *p; 21631da177e4SLinus Torvalds 21641da177e4SLinus Torvalds *type = 0; 21651da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 21661da177e4SLinus Torvalds return -EIO; 21671da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 21681da177e4SLinus Torvalds READ_BUF(4); 21691da177e4SLinus Torvalds READ32(*type); 21701da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 21713110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 21721da177e4SLinus Torvalds return -EIO; 21731da177e4SLinus Torvalds } 21741da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 21751da177e4SLinus Torvalds } 21763110ff80SHarvey Harrison dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type].nfs2type); 21771da177e4SLinus Torvalds return 0; 21781da177e4SLinus Torvalds } 21791da177e4SLinus Torvalds 21801da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 21811da177e4SLinus Torvalds { 21828687b63aSAl Viro __be32 *p; 21831da177e4SLinus Torvalds 21841da177e4SLinus Torvalds *change = 0; 21851da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 21861da177e4SLinus Torvalds return -EIO; 21871da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 21881da177e4SLinus Torvalds READ_BUF(8); 21891da177e4SLinus Torvalds READ64(*change); 21901da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 21911da177e4SLinus Torvalds } 21923110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 21931da177e4SLinus Torvalds (unsigned long long)*change); 21941da177e4SLinus Torvalds return 0; 21951da177e4SLinus Torvalds } 21961da177e4SLinus Torvalds 21971da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 21981da177e4SLinus Torvalds { 21998687b63aSAl Viro __be32 *p; 22001da177e4SLinus Torvalds 22011da177e4SLinus Torvalds *size = 0; 22021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 22031da177e4SLinus Torvalds return -EIO; 22041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 22051da177e4SLinus Torvalds READ_BUF(8); 22061da177e4SLinus Torvalds READ64(*size); 22071da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 22081da177e4SLinus Torvalds } 22093110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 22101da177e4SLinus Torvalds return 0; 22111da177e4SLinus Torvalds } 22121da177e4SLinus Torvalds 22131da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22141da177e4SLinus Torvalds { 22158687b63aSAl Viro __be32 *p; 22161da177e4SLinus Torvalds 22171da177e4SLinus Torvalds *res = 0; 22181da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 22191da177e4SLinus Torvalds return -EIO; 22201da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 22211da177e4SLinus Torvalds READ_BUF(4); 22221da177e4SLinus Torvalds READ32(*res); 22231da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 22241da177e4SLinus Torvalds } 22253110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 22261da177e4SLinus Torvalds return 0; 22271da177e4SLinus Torvalds } 22281da177e4SLinus Torvalds 22291da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22301da177e4SLinus Torvalds { 22318687b63aSAl Viro __be32 *p; 22321da177e4SLinus Torvalds 22331da177e4SLinus Torvalds *res = 0; 22341da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 22351da177e4SLinus Torvalds return -EIO; 22361da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 22371da177e4SLinus Torvalds READ_BUF(4); 22381da177e4SLinus Torvalds READ32(*res); 22391da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 22401da177e4SLinus Torvalds } 22413110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 22421da177e4SLinus Torvalds return 0; 22431da177e4SLinus Torvalds } 22441da177e4SLinus Torvalds 22458b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 22461da177e4SLinus Torvalds { 22478687b63aSAl Viro __be32 *p; 22481da177e4SLinus Torvalds 22491da177e4SLinus Torvalds fsid->major = 0; 22501da177e4SLinus Torvalds fsid->minor = 0; 22511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 22521da177e4SLinus Torvalds return -EIO; 22531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 22541da177e4SLinus Torvalds READ_BUF(16); 22551da177e4SLinus Torvalds READ64(fsid->major); 22561da177e4SLinus Torvalds READ64(fsid->minor); 22571da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 22581da177e4SLinus Torvalds } 22593110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 22601da177e4SLinus Torvalds (unsigned long long)fsid->major, 22611da177e4SLinus Torvalds (unsigned long long)fsid->minor); 22621da177e4SLinus Torvalds return 0; 22631da177e4SLinus Torvalds } 22641da177e4SLinus Torvalds 22651da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22661da177e4SLinus Torvalds { 22678687b63aSAl Viro __be32 *p; 22681da177e4SLinus Torvalds 22691da177e4SLinus Torvalds *res = 60; 22701da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 22711da177e4SLinus Torvalds return -EIO; 22721da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 22731da177e4SLinus Torvalds READ_BUF(4); 22741da177e4SLinus Torvalds READ32(*res); 22751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 22761da177e4SLinus Torvalds } 22773110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 22781da177e4SLinus Torvalds return 0; 22791da177e4SLinus Torvalds } 22801da177e4SLinus Torvalds 22811da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22821da177e4SLinus Torvalds { 22838687b63aSAl Viro __be32 *p; 22841da177e4SLinus Torvalds 22851da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 22861da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 22871da177e4SLinus Torvalds return -EIO; 22881da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 22891da177e4SLinus Torvalds READ_BUF(4); 22901da177e4SLinus Torvalds READ32(*res); 22911da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 22921da177e4SLinus Torvalds } 22933110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 22941da177e4SLinus Torvalds return 0; 22951da177e4SLinus Torvalds } 22961da177e4SLinus Torvalds 22971da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 22981da177e4SLinus Torvalds { 22998687b63aSAl Viro __be32 *p; 23001da177e4SLinus Torvalds 23011da177e4SLinus Torvalds *fileid = 0; 23021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 23031da177e4SLinus Torvalds return -EIO; 23041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 23051da177e4SLinus Torvalds READ_BUF(8); 23061da177e4SLinus Torvalds READ64(*fileid); 23071da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 23081da177e4SLinus Torvalds } 23093110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 23101da177e4SLinus Torvalds return 0; 23111da177e4SLinus Torvalds } 23121da177e4SLinus Torvalds 231399baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 231499baf625SManoj Naik { 23158687b63aSAl Viro __be32 *p; 231699baf625SManoj Naik 231799baf625SManoj Naik *fileid = 0; 231899baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 231999baf625SManoj Naik return -EIO; 232099baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 232199baf625SManoj Naik READ_BUF(8); 232299baf625SManoj Naik READ64(*fileid); 232399baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 232499baf625SManoj Naik } 23253110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 232699baf625SManoj Naik return 0; 232799baf625SManoj Naik } 232899baf625SManoj Naik 23291da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23301da177e4SLinus Torvalds { 23318687b63aSAl Viro __be32 *p; 23321da177e4SLinus Torvalds int status = 0; 23331da177e4SLinus Torvalds 23341da177e4SLinus Torvalds *res = 0; 23351da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 23361da177e4SLinus Torvalds return -EIO; 23371da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 23381da177e4SLinus Torvalds READ_BUF(8); 23391da177e4SLinus Torvalds READ64(*res); 23401da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 23411da177e4SLinus Torvalds } 23423110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 23431da177e4SLinus Torvalds return status; 23441da177e4SLinus Torvalds } 23451da177e4SLinus Torvalds 23461da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23471da177e4SLinus Torvalds { 23488687b63aSAl Viro __be32 *p; 23491da177e4SLinus Torvalds int status = 0; 23501da177e4SLinus Torvalds 23511da177e4SLinus Torvalds *res = 0; 23521da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 23531da177e4SLinus Torvalds return -EIO; 23541da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 23551da177e4SLinus Torvalds READ_BUF(8); 23561da177e4SLinus Torvalds READ64(*res); 23571da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 23581da177e4SLinus Torvalds } 23593110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 23601da177e4SLinus Torvalds return status; 23611da177e4SLinus Torvalds } 23621da177e4SLinus Torvalds 23631da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23641da177e4SLinus Torvalds { 23658687b63aSAl Viro __be32 *p; 23661da177e4SLinus Torvalds int status = 0; 23671da177e4SLinus Torvalds 23681da177e4SLinus Torvalds *res = 0; 23691da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 23701da177e4SLinus Torvalds return -EIO; 23711da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 23721da177e4SLinus Torvalds READ_BUF(8); 23731da177e4SLinus Torvalds READ64(*res); 23741da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 23751da177e4SLinus Torvalds } 23763110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 23771da177e4SLinus Torvalds return status; 23781da177e4SLinus Torvalds } 23791da177e4SLinus Torvalds 23807aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 23817aaa0b3bSManoj Naik { 2382464ad6b1SChuck Lever u32 n; 23838687b63aSAl Viro __be32 *p; 23847aaa0b3bSManoj Naik int status = 0; 23857aaa0b3bSManoj Naik 23867aaa0b3bSManoj Naik READ_BUF(4); 23877aaa0b3bSManoj Naik READ32(n); 238833a43f28SAndy Adamson if (n == 0) 238933a43f28SAndy Adamson goto root_path; 23907aaa0b3bSManoj Naik dprintk("path "); 23917aaa0b3bSManoj Naik path->ncomponents = 0; 23927aaa0b3bSManoj Naik while (path->ncomponents < n) { 23937aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 23947aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 23957aaa0b3bSManoj Naik if (unlikely(status != 0)) 23967aaa0b3bSManoj Naik goto out_eio; 23977aaa0b3bSManoj Naik if (path->ncomponents != n) 23987aaa0b3bSManoj Naik dprintk("/"); 23997aaa0b3bSManoj Naik dprintk("%s", component->data); 24007aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 24017aaa0b3bSManoj Naik path->ncomponents++; 24027aaa0b3bSManoj Naik else { 24037aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 24047aaa0b3bSManoj Naik goto out_eio; 24057aaa0b3bSManoj Naik } 24067aaa0b3bSManoj Naik } 24077aaa0b3bSManoj Naik out: 24087aaa0b3bSManoj Naik dprintk("\n"); 24097aaa0b3bSManoj Naik return status; 241033a43f28SAndy Adamson root_path: 241133a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 241233a43f28SAndy Adamson path->ncomponents = 1; 241333a43f28SAndy Adamson path->components[0].len=0; 241433a43f28SAndy Adamson path->components[0].data=NULL; 241533a43f28SAndy Adamson dprintk("path /\n"); 241633a43f28SAndy Adamson goto out; 24177aaa0b3bSManoj Naik out_eio: 24187aaa0b3bSManoj Naik dprintk(" status %d", status); 24197aaa0b3bSManoj Naik status = -EIO; 24207aaa0b3bSManoj Naik goto out; 24217aaa0b3bSManoj Naik } 24227aaa0b3bSManoj Naik 24237aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2424683b57b4STrond Myklebust { 2425683b57b4STrond Myklebust int n; 24268687b63aSAl Viro __be32 *p; 2427683b57b4STrond Myklebust int status = -EIO; 2428683b57b4STrond Myklebust 2429683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2430683b57b4STrond Myklebust goto out; 2431683b57b4STrond Myklebust status = 0; 2432683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2433683b57b4STrond Myklebust goto out; 24343110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 24357aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2436683b57b4STrond Myklebust if (unlikely(status != 0)) 2437683b57b4STrond Myklebust goto out; 2438683b57b4STrond Myklebust READ_BUF(4); 2439683b57b4STrond Myklebust READ32(n); 2440683b57b4STrond Myklebust if (n <= 0) 2441683b57b4STrond Myklebust goto out_eio; 2442683b57b4STrond Myklebust res->nlocations = 0; 2443683b57b4STrond Myklebust while (res->nlocations < n) { 2444464ad6b1SChuck Lever u32 m; 24457aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2446683b57b4STrond Myklebust 24477aaa0b3bSManoj Naik READ_BUF(4); 24487aaa0b3bSManoj Naik READ32(m); 24497aaa0b3bSManoj Naik 24507aaa0b3bSManoj Naik loc->nservers = 0; 24513110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 24527aaa0b3bSManoj Naik while (loc->nservers < m) { 24537aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 24547aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2455683b57b4STrond Myklebust if (unlikely(status != 0)) 2456683b57b4STrond Myklebust goto out_eio; 24577aaa0b3bSManoj Naik dprintk("%s ", server->data); 24587aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 24597aaa0b3bSManoj Naik loc->nservers++; 24607aaa0b3bSManoj Naik else { 2461464ad6b1SChuck Lever unsigned int i; 2462464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2463464ad6b1SChuck Lever "returned for location %u\n", 24643110ff80SHarvey Harrison __func__, 2465464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2466464ad6b1SChuck Lever m, res->nlocations); 24677aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 24682e42c3e2STrond Myklebust unsigned int len; 24697aaa0b3bSManoj Naik char *data; 24707aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2471683b57b4STrond Myklebust if (unlikely(status != 0)) 2472683b57b4STrond Myklebust goto out_eio; 24737aaa0b3bSManoj Naik } 24747aaa0b3bSManoj Naik } 24757aaa0b3bSManoj Naik } 24767aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 24777aaa0b3bSManoj Naik if (unlikely(status != 0)) 24787aaa0b3bSManoj Naik goto out_eio; 24797aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2480683b57b4STrond Myklebust res->nlocations++; 2481683b57b4STrond Myklebust } 2482683b57b4STrond Myklebust out: 24833110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2484683b57b4STrond Myklebust return status; 2485683b57b4STrond Myklebust out_eio: 2486683b57b4STrond Myklebust status = -EIO; 2487683b57b4STrond Myklebust goto out; 2488683b57b4STrond Myklebust } 2489683b57b4STrond Myklebust 24901da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24911da177e4SLinus Torvalds { 24928687b63aSAl Viro __be32 *p; 24931da177e4SLinus Torvalds int status = 0; 24941da177e4SLinus Torvalds 24951da177e4SLinus Torvalds *res = 0; 24961da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 24971da177e4SLinus Torvalds return -EIO; 24981da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 24991da177e4SLinus Torvalds READ_BUF(8); 25001da177e4SLinus Torvalds READ64(*res); 25011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 25021da177e4SLinus Torvalds } 25033110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 25041da177e4SLinus Torvalds return status; 25051da177e4SLinus Torvalds } 25061da177e4SLinus Torvalds 25071da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 25081da177e4SLinus Torvalds { 25098687b63aSAl Viro __be32 *p; 25101da177e4SLinus Torvalds int status = 0; 25111da177e4SLinus Torvalds 25121da177e4SLinus Torvalds *maxlink = 1; 25131da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 25141da177e4SLinus Torvalds return -EIO; 25151da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 25161da177e4SLinus Torvalds READ_BUF(4); 25171da177e4SLinus Torvalds READ32(*maxlink); 25181da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 25191da177e4SLinus Torvalds } 25203110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 25211da177e4SLinus Torvalds return status; 25221da177e4SLinus Torvalds } 25231da177e4SLinus Torvalds 25241da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 25251da177e4SLinus Torvalds { 25268687b63aSAl Viro __be32 *p; 25271da177e4SLinus Torvalds int status = 0; 25281da177e4SLinus Torvalds 25291da177e4SLinus Torvalds *maxname = 1024; 25301da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 25311da177e4SLinus Torvalds return -EIO; 25321da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 25331da177e4SLinus Torvalds READ_BUF(4); 25341da177e4SLinus Torvalds READ32(*maxname); 25351da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 25361da177e4SLinus Torvalds } 25373110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 25381da177e4SLinus Torvalds return status; 25391da177e4SLinus Torvalds } 25401da177e4SLinus Torvalds 25411da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 25421da177e4SLinus Torvalds { 25438687b63aSAl Viro __be32 *p; 25441da177e4SLinus Torvalds int status = 0; 25451da177e4SLinus Torvalds 25461da177e4SLinus Torvalds *res = 1024; 25471da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 25481da177e4SLinus Torvalds return -EIO; 25491da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 25501da177e4SLinus Torvalds uint64_t maxread; 25511da177e4SLinus Torvalds READ_BUF(8); 25521da177e4SLinus Torvalds READ64(maxread); 25531da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 25541da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 25551da177e4SLinus Torvalds *res = (uint32_t)maxread; 25561da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 25571da177e4SLinus Torvalds } 25583110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 25591da177e4SLinus Torvalds return status; 25601da177e4SLinus Torvalds } 25611da177e4SLinus Torvalds 25621da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 25631da177e4SLinus Torvalds { 25648687b63aSAl Viro __be32 *p; 25651da177e4SLinus Torvalds int status = 0; 25661da177e4SLinus Torvalds 25671da177e4SLinus Torvalds *res = 1024; 25681da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 25691da177e4SLinus Torvalds return -EIO; 25701da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 25711da177e4SLinus Torvalds uint64_t maxwrite; 25721da177e4SLinus Torvalds READ_BUF(8); 25731da177e4SLinus Torvalds READ64(maxwrite); 25741da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 25751da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 25761da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 25771da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 25781da177e4SLinus Torvalds } 25793110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 25801da177e4SLinus Torvalds return status; 25811da177e4SLinus Torvalds } 25821da177e4SLinus Torvalds 25831da177e4SLinus Torvalds static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) 25841da177e4SLinus Torvalds { 25858687b63aSAl Viro __be32 *p; 25861da177e4SLinus Torvalds 25871da177e4SLinus Torvalds *mode = 0; 25881da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 25891da177e4SLinus Torvalds return -EIO; 25901da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 25911da177e4SLinus Torvalds READ_BUF(4); 25921da177e4SLinus Torvalds READ32(*mode); 25931da177e4SLinus Torvalds *mode &= ~S_IFMT; 25941da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 25951da177e4SLinus Torvalds } 25963110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 25971da177e4SLinus Torvalds return 0; 25981da177e4SLinus Torvalds } 25991da177e4SLinus Torvalds 26001da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 26011da177e4SLinus Torvalds { 26028687b63aSAl Viro __be32 *p; 26031da177e4SLinus Torvalds 26041da177e4SLinus Torvalds *nlink = 1; 26051da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 26061da177e4SLinus Torvalds return -EIO; 26071da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 26081da177e4SLinus Torvalds READ_BUF(4); 26091da177e4SLinus Torvalds READ32(*nlink); 26101da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 26111da177e4SLinus Torvalds } 26123110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 26131da177e4SLinus Torvalds return 0; 26141da177e4SLinus Torvalds } 26151da177e4SLinus Torvalds 26162e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 26171da177e4SLinus Torvalds { 26188687b63aSAl Viro uint32_t len; 26198687b63aSAl Viro __be32 *p; 26201da177e4SLinus Torvalds 26211da177e4SLinus Torvalds *uid = -2; 26221da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 26231da177e4SLinus Torvalds return -EIO; 26241da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 26251da177e4SLinus Torvalds READ_BUF(4); 26261da177e4SLinus Torvalds READ32(len); 26271da177e4SLinus Torvalds READ_BUF(len); 26281da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 26291da177e4SLinus Torvalds if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) 26301da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 26313110ff80SHarvey Harrison __func__); 26321da177e4SLinus Torvalds } else 2633fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 26343110ff80SHarvey Harrison __func__, len); 26351da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 26361da177e4SLinus Torvalds } 26373110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 26381da177e4SLinus Torvalds return 0; 26391da177e4SLinus Torvalds } 26401da177e4SLinus Torvalds 26412e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 26421da177e4SLinus Torvalds { 26438687b63aSAl Viro uint32_t len; 26448687b63aSAl Viro __be32 *p; 26451da177e4SLinus Torvalds 26461da177e4SLinus Torvalds *gid = -2; 26471da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 26481da177e4SLinus Torvalds return -EIO; 26491da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 26501da177e4SLinus Torvalds READ_BUF(4); 26511da177e4SLinus Torvalds READ32(len); 26521da177e4SLinus Torvalds READ_BUF(len); 26531da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 26541da177e4SLinus Torvalds if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) 26551da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 26563110ff80SHarvey Harrison __func__); 26571da177e4SLinus Torvalds } else 2658fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 26593110ff80SHarvey Harrison __func__, len); 26601da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 26611da177e4SLinus Torvalds } 26623110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 26631da177e4SLinus Torvalds return 0; 26641da177e4SLinus Torvalds } 26651da177e4SLinus Torvalds 26661da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 26671da177e4SLinus Torvalds { 26688687b63aSAl Viro uint32_t major = 0, minor = 0; 26698687b63aSAl Viro __be32 *p; 26701da177e4SLinus Torvalds 26711da177e4SLinus Torvalds *rdev = MKDEV(0,0); 26721da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 26731da177e4SLinus Torvalds return -EIO; 26741da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 26751da177e4SLinus Torvalds dev_t tmp; 26761da177e4SLinus Torvalds 26771da177e4SLinus Torvalds READ_BUF(8); 26781da177e4SLinus Torvalds READ32(major); 26791da177e4SLinus Torvalds READ32(minor); 26801da177e4SLinus Torvalds tmp = MKDEV(major, minor); 26811da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 26821da177e4SLinus Torvalds *rdev = tmp; 26831da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 26841da177e4SLinus Torvalds } 26853110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 26861da177e4SLinus Torvalds return 0; 26871da177e4SLinus Torvalds } 26881da177e4SLinus Torvalds 26891da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 26901da177e4SLinus Torvalds { 26918687b63aSAl Viro __be32 *p; 26921da177e4SLinus Torvalds int status = 0; 26931da177e4SLinus Torvalds 26941da177e4SLinus Torvalds *res = 0; 26951da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 26961da177e4SLinus Torvalds return -EIO; 26971da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 26981da177e4SLinus Torvalds READ_BUF(8); 26991da177e4SLinus Torvalds READ64(*res); 27001da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 27011da177e4SLinus Torvalds } 27023110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 27031da177e4SLinus Torvalds return status; 27041da177e4SLinus Torvalds } 27051da177e4SLinus Torvalds 27061da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27071da177e4SLinus Torvalds { 27088687b63aSAl Viro __be32 *p; 27091da177e4SLinus Torvalds int status = 0; 27101da177e4SLinus Torvalds 27111da177e4SLinus Torvalds *res = 0; 27121da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 27131da177e4SLinus Torvalds return -EIO; 27141da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 27151da177e4SLinus Torvalds READ_BUF(8); 27161da177e4SLinus Torvalds READ64(*res); 27171da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 27181da177e4SLinus Torvalds } 27193110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 27201da177e4SLinus Torvalds return status; 27211da177e4SLinus Torvalds } 27221da177e4SLinus Torvalds 27231da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27241da177e4SLinus Torvalds { 27258687b63aSAl Viro __be32 *p; 27261da177e4SLinus Torvalds int status = 0; 27271da177e4SLinus Torvalds 27281da177e4SLinus Torvalds *res = 0; 27291da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 27301da177e4SLinus Torvalds return -EIO; 27311da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 27321da177e4SLinus Torvalds READ_BUF(8); 27331da177e4SLinus Torvalds READ64(*res); 27341da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 27351da177e4SLinus Torvalds } 27363110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 27371da177e4SLinus Torvalds return status; 27381da177e4SLinus Torvalds } 27391da177e4SLinus Torvalds 27401da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 27411da177e4SLinus Torvalds { 27428687b63aSAl Viro __be32 *p; 27431da177e4SLinus Torvalds 27441da177e4SLinus Torvalds *used = 0; 27451da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 27461da177e4SLinus Torvalds return -EIO; 27471da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 27481da177e4SLinus Torvalds READ_BUF(8); 27491da177e4SLinus Torvalds READ64(*used); 27501da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 27511da177e4SLinus Torvalds } 27523110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 27531da177e4SLinus Torvalds (unsigned long long)*used); 27541da177e4SLinus Torvalds return 0; 27551da177e4SLinus Torvalds } 27561da177e4SLinus Torvalds 27571da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 27581da177e4SLinus Torvalds { 27598687b63aSAl Viro __be32 *p; 27601da177e4SLinus Torvalds uint64_t sec; 27611da177e4SLinus Torvalds uint32_t nsec; 27621da177e4SLinus Torvalds 27631da177e4SLinus Torvalds READ_BUF(12); 27641da177e4SLinus Torvalds READ64(sec); 27651da177e4SLinus Torvalds READ32(nsec); 27661da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 27671da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 27681da177e4SLinus Torvalds return 0; 27691da177e4SLinus Torvalds } 27701da177e4SLinus Torvalds 27711da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 27721da177e4SLinus Torvalds { 27731da177e4SLinus Torvalds int status = 0; 27741da177e4SLinus Torvalds 27751da177e4SLinus Torvalds time->tv_sec = 0; 27761da177e4SLinus Torvalds time->tv_nsec = 0; 27771da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 27781da177e4SLinus Torvalds return -EIO; 27791da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 27801da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 27811da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 27821da177e4SLinus Torvalds } 27833110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 27841da177e4SLinus Torvalds return status; 27851da177e4SLinus Torvalds } 27861da177e4SLinus Torvalds 27871da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 27881da177e4SLinus Torvalds { 27891da177e4SLinus Torvalds int status = 0; 27901da177e4SLinus Torvalds 27911da177e4SLinus Torvalds time->tv_sec = 0; 27921da177e4SLinus Torvalds time->tv_nsec = 0; 27931da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 27941da177e4SLinus Torvalds return -EIO; 27951da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 27961da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 27971da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 27981da177e4SLinus Torvalds } 27993110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 28001da177e4SLinus Torvalds return status; 28011da177e4SLinus Torvalds } 28021da177e4SLinus Torvalds 28031da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 28041da177e4SLinus Torvalds { 28051da177e4SLinus Torvalds int status = 0; 28061da177e4SLinus Torvalds 28071da177e4SLinus Torvalds time->tv_sec = 0; 28081da177e4SLinus Torvalds time->tv_nsec = 0; 28091da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 28101da177e4SLinus Torvalds return -EIO; 28111da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 28121da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 28131da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 28141da177e4SLinus Torvalds } 28153110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 28161da177e4SLinus Torvalds return status; 28171da177e4SLinus Torvalds } 28181da177e4SLinus Torvalds 28198687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 28201da177e4SLinus Torvalds { 28211da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 28221da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 28231da177e4SLinus Torvalds 28241da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 2825fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 2826fe82a183SChuck Lever "%u %c %u\n", 28273110ff80SHarvey Harrison __func__, 28281da177e4SLinus Torvalds attrwords << 2, 28291da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 28301da177e4SLinus Torvalds nwords << 2); 28311da177e4SLinus Torvalds return -EIO; 28321da177e4SLinus Torvalds } 28331da177e4SLinus Torvalds return 0; 28341da177e4SLinus Torvalds } 28351da177e4SLinus Torvalds 28361da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 28371da177e4SLinus Torvalds { 28388687b63aSAl Viro __be32 *p; 28391da177e4SLinus Torvalds 28401da177e4SLinus Torvalds READ_BUF(20); 28411da177e4SLinus Torvalds READ32(cinfo->atomic); 28421da177e4SLinus Torvalds READ64(cinfo->before); 28431da177e4SLinus Torvalds READ64(cinfo->after); 28441da177e4SLinus Torvalds return 0; 28451da177e4SLinus Torvalds } 28461da177e4SLinus Torvalds 28471da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 28481da177e4SLinus Torvalds { 28498687b63aSAl Viro __be32 *p; 28501da177e4SLinus Torvalds uint32_t supp, acc; 28511da177e4SLinus Torvalds int status; 28521da177e4SLinus Torvalds 28531da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 28541da177e4SLinus Torvalds if (status) 28551da177e4SLinus Torvalds return status; 28561da177e4SLinus Torvalds READ_BUF(8); 28571da177e4SLinus Torvalds READ32(supp); 28581da177e4SLinus Torvalds READ32(acc); 28591da177e4SLinus Torvalds access->supported = supp; 28601da177e4SLinus Torvalds access->access = acc; 28611da177e4SLinus Torvalds return 0; 28621da177e4SLinus Torvalds } 28631da177e4SLinus Torvalds 28641da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 28651da177e4SLinus Torvalds { 28668687b63aSAl Viro __be32 *p; 28671da177e4SLinus Torvalds int status; 28681da177e4SLinus Torvalds 28691da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 2870c1d51931STrond Myklebust if (status != -EIO) 2871c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 28721da177e4SLinus Torvalds if (status) 28731da177e4SLinus Torvalds return status; 28748ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 28758ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 28761da177e4SLinus Torvalds return 0; 28771da177e4SLinus Torvalds } 28781da177e4SLinus Torvalds 28791da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 28801da177e4SLinus Torvalds { 28818687b63aSAl Viro __be32 *p; 28821da177e4SLinus Torvalds int status; 28831da177e4SLinus Torvalds 28841da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 28851da177e4SLinus Torvalds if (status) 28861da177e4SLinus Torvalds return status; 28871da177e4SLinus Torvalds READ_BUF(8); 28881da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 28891da177e4SLinus Torvalds return 0; 28901da177e4SLinus Torvalds } 28911da177e4SLinus Torvalds 28921da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 28931da177e4SLinus Torvalds { 28948687b63aSAl Viro __be32 *p; 28951da177e4SLinus Torvalds uint32_t bmlen; 28961da177e4SLinus Torvalds int status; 28971da177e4SLinus Torvalds 28981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 28991da177e4SLinus Torvalds if (status) 29001da177e4SLinus Torvalds return status; 29011da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 29021da177e4SLinus Torvalds return status; 29031da177e4SLinus Torvalds READ_BUF(4); 29041da177e4SLinus Torvalds READ32(bmlen); 29051da177e4SLinus Torvalds READ_BUF(bmlen << 2); 29061da177e4SLinus Torvalds return 0; 29071da177e4SLinus Torvalds } 29081da177e4SLinus Torvalds 29091da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 29101da177e4SLinus Torvalds { 29118687b63aSAl Viro __be32 *savep; 29126c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 29131da177e4SLinus Torvalds int status; 29141da177e4SLinus Torvalds 29151da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29161da177e4SLinus Torvalds goto xdr_error; 29171da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 29181da177e4SLinus Torvalds goto xdr_error; 29191da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 29201da177e4SLinus Torvalds goto xdr_error; 29211da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 29221da177e4SLinus Torvalds goto xdr_error; 29231da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 29241da177e4SLinus Torvalds goto xdr_error; 29251da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 29261da177e4SLinus Torvalds goto xdr_error; 29271da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 29281da177e4SLinus Torvalds goto xdr_error; 29291da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 29301da177e4SLinus Torvalds xdr_error: 29313110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 29321da177e4SLinus Torvalds return status; 29331da177e4SLinus Torvalds } 29341da177e4SLinus Torvalds 29351da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 29361da177e4SLinus Torvalds { 29378687b63aSAl Viro __be32 *savep; 29386c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 29391da177e4SLinus Torvalds int status; 29401da177e4SLinus Torvalds 29411da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29421da177e4SLinus Torvalds goto xdr_error; 29431da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 29441da177e4SLinus Torvalds goto xdr_error; 29451da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 29461da177e4SLinus Torvalds goto xdr_error; 29471da177e4SLinus Torvalds 29481da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 29491da177e4SLinus Torvalds goto xdr_error; 29501da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 29511da177e4SLinus Torvalds goto xdr_error; 29521da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 29531da177e4SLinus Torvalds goto xdr_error; 29541da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 29551da177e4SLinus Torvalds goto xdr_error; 29561da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 29571da177e4SLinus Torvalds goto xdr_error; 29581da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 29591da177e4SLinus Torvalds goto xdr_error; 29601da177e4SLinus Torvalds 29611da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 29621da177e4SLinus Torvalds xdr_error: 29633110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 29641da177e4SLinus Torvalds return status; 29651da177e4SLinus Torvalds } 29661da177e4SLinus Torvalds 29671da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 29681da177e4SLinus Torvalds { 29698687b63aSAl Viro __be32 *savep; 29706c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 29711da177e4SLinus Torvalds int status; 29721da177e4SLinus Torvalds 29731da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29741da177e4SLinus Torvalds goto xdr_error; 29751da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 29761da177e4SLinus Torvalds goto xdr_error; 29771da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 29781da177e4SLinus Torvalds goto xdr_error; 29791da177e4SLinus Torvalds 29801da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 29811da177e4SLinus Torvalds goto xdr_error; 29821da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 29831da177e4SLinus Torvalds goto xdr_error; 29841da177e4SLinus Torvalds 29851da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 29861da177e4SLinus Torvalds xdr_error: 29873110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 29881da177e4SLinus Torvalds return status; 29891da177e4SLinus Torvalds } 29901da177e4SLinus Torvalds 29911da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 29921da177e4SLinus Torvalds { 29938687b63aSAl Viro __be32 *savep; 29941da177e4SLinus Torvalds uint32_t attrlen, 29951da177e4SLinus Torvalds bitmap[2] = {0}, 29961da177e4SLinus Torvalds type; 29971da177e4SLinus Torvalds int status, fmode = 0; 299899baf625SManoj Naik uint64_t fileid; 29991da177e4SLinus Torvalds 30001da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30011da177e4SLinus Torvalds goto xdr_error; 30021da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30031da177e4SLinus Torvalds goto xdr_error; 30041da177e4SLinus Torvalds 30051da177e4SLinus Torvalds fattr->bitmap[0] = bitmap[0]; 30061da177e4SLinus Torvalds fattr->bitmap[1] = bitmap[1]; 30071da177e4SLinus Torvalds 30081da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30091da177e4SLinus Torvalds goto xdr_error; 30101da177e4SLinus Torvalds 30111da177e4SLinus Torvalds 30121da177e4SLinus Torvalds if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) 30131da177e4SLinus Torvalds goto xdr_error; 30141da177e4SLinus Torvalds fattr->type = nfs_type2fmt[type].nfs2type; 30151da177e4SLinus Torvalds fmode = nfs_type2fmt[type].mode; 30161da177e4SLinus Torvalds 30171da177e4SLinus Torvalds if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) 30181da177e4SLinus Torvalds goto xdr_error; 30191da177e4SLinus Torvalds if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) 30201da177e4SLinus Torvalds goto xdr_error; 30218b4bdcf8STrond Myklebust if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) 30221da177e4SLinus Torvalds goto xdr_error; 30231da177e4SLinus Torvalds if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) 30241da177e4SLinus Torvalds goto xdr_error; 3025683b57b4STrond Myklebust if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 30267aaa0b3bSManoj Naik struct nfs4_fs_locations, 3027683b57b4STrond Myklebust fattr))) != 0) 3028683b57b4STrond Myklebust goto xdr_error; 30291da177e4SLinus Torvalds if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) 30301da177e4SLinus Torvalds goto xdr_error; 30311da177e4SLinus Torvalds fattr->mode |= fmode; 30321da177e4SLinus Torvalds if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) 30331da177e4SLinus Torvalds goto xdr_error; 30347539bbabSDavid Howells if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) 30351da177e4SLinus Torvalds goto xdr_error; 30367539bbabSDavid Howells if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) 30371da177e4SLinus Torvalds goto xdr_error; 30381da177e4SLinus Torvalds if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) 30391da177e4SLinus Torvalds goto xdr_error; 30401da177e4SLinus Torvalds if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) 30411da177e4SLinus Torvalds goto xdr_error; 30421da177e4SLinus Torvalds if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) 30431da177e4SLinus Torvalds goto xdr_error; 30441da177e4SLinus Torvalds if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) 30451da177e4SLinus Torvalds goto xdr_error; 30461da177e4SLinus Torvalds if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) 30471da177e4SLinus Torvalds goto xdr_error; 304899baf625SManoj Naik if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) 304999baf625SManoj Naik goto xdr_error; 305099baf625SManoj Naik if (fattr->fileid == 0 && fileid != 0) 305199baf625SManoj Naik fattr->fileid = fileid; 305233801147STrond Myklebust if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) 30531da177e4SLinus Torvalds fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; 30541da177e4SLinus Torvalds xdr_error: 30553110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 30561da177e4SLinus Torvalds return status; 30571da177e4SLinus Torvalds } 30581da177e4SLinus Torvalds 30591da177e4SLinus Torvalds 30601da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 30611da177e4SLinus Torvalds { 30628687b63aSAl Viro __be32 *savep; 30631da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 30641da177e4SLinus Torvalds int status; 30651da177e4SLinus Torvalds 30661da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30671da177e4SLinus Torvalds goto xdr_error; 30681da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30691da177e4SLinus Torvalds goto xdr_error; 30701da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30711da177e4SLinus Torvalds goto xdr_error; 30721da177e4SLinus Torvalds 30731da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 30741da177e4SLinus Torvalds 30751da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 30761da177e4SLinus Torvalds goto xdr_error; 30771da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 30781da177e4SLinus Torvalds goto xdr_error; 30791da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 30801da177e4SLinus Torvalds goto xdr_error; 30811da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 30821da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 30831da177e4SLinus Torvalds goto xdr_error; 30841da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 30851da177e4SLinus Torvalds 30861da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30871da177e4SLinus Torvalds xdr_error: 30883110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 30891da177e4SLinus Torvalds return status; 30901da177e4SLinus Torvalds } 30911da177e4SLinus Torvalds 30921da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 30931da177e4SLinus Torvalds { 30948687b63aSAl Viro __be32 *p; 30951da177e4SLinus Torvalds uint32_t len; 30961da177e4SLinus Torvalds int status; 30971da177e4SLinus Torvalds 30989936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 30999936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 31009936781dSTrond Myklebust 31011da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 31021da177e4SLinus Torvalds if (status) 31031da177e4SLinus Torvalds return status; 31041da177e4SLinus Torvalds 31051da177e4SLinus Torvalds READ_BUF(4); 31061da177e4SLinus Torvalds READ32(len); 31071da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 31081da177e4SLinus Torvalds return -EIO; 31091da177e4SLinus Torvalds fh->size = len; 31101da177e4SLinus Torvalds READ_BUF(len); 31111da177e4SLinus Torvalds COPYMEM(fh->data, len); 31121da177e4SLinus Torvalds return 0; 31131da177e4SLinus Torvalds } 31141da177e4SLinus Torvalds 31151da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 31161da177e4SLinus Torvalds { 31171da177e4SLinus Torvalds int status; 31181da177e4SLinus Torvalds 31191da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 31201da177e4SLinus Torvalds if (status) 31211da177e4SLinus Torvalds return status; 31221da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 31231da177e4SLinus Torvalds } 31241da177e4SLinus Torvalds 31251da177e4SLinus Torvalds /* 31261da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 31271da177e4SLinus Torvalds */ 3128911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 31291da177e4SLinus Torvalds { 3130911d1aafSTrond Myklebust uint64_t offset, length, clientid; 31318687b63aSAl Viro __be32 *p; 3132911d1aafSTrond Myklebust uint32_t namelen, type; 31331da177e4SLinus Torvalds 31341da177e4SLinus Torvalds READ_BUF(32); 3135911d1aafSTrond Myklebust READ64(offset); 3136911d1aafSTrond Myklebust READ64(length); 3137911d1aafSTrond Myklebust READ32(type); 3138911d1aafSTrond Myklebust if (fl != NULL) { 3139911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3140911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3141911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3142911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3143911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3144911d1aafSTrond Myklebust if (type & 1) 3145911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3146911d1aafSTrond Myklebust fl->fl_pid = 0; 3147911d1aafSTrond Myklebust } 3148911d1aafSTrond Myklebust READ64(clientid); 31491da177e4SLinus Torvalds READ32(namelen); 31501da177e4SLinus Torvalds READ_BUF(namelen); 31511da177e4SLinus Torvalds return -NFS4ERR_DENIED; 31521da177e4SLinus Torvalds } 31531da177e4SLinus Torvalds 3154911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 31551da177e4SLinus Torvalds { 31568687b63aSAl Viro __be32 *p; 31571da177e4SLinus Torvalds int status; 31581da177e4SLinus Torvalds 31591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3160c1d51931STrond Myklebust if (status == -EIO) 3161c1d51931STrond Myklebust goto out; 31621da177e4SLinus Torvalds if (status == 0) { 31638ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 31648ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 31651da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3166c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3167c1d51931STrond Myklebust if (res->open_seqid != NULL) 3168c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3169c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3170c1d51931STrond Myklebust out: 31711da177e4SLinus Torvalds return status; 31721da177e4SLinus Torvalds } 31731da177e4SLinus Torvalds 3174911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 31751da177e4SLinus Torvalds { 31761da177e4SLinus Torvalds int status; 31771da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 31781da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3179911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 31801da177e4SLinus Torvalds return status; 31811da177e4SLinus Torvalds } 31821da177e4SLinus Torvalds 3183911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 31841da177e4SLinus Torvalds { 31858687b63aSAl Viro __be32 *p; 31861da177e4SLinus Torvalds int status; 31871da177e4SLinus Torvalds 31881da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3189c1d51931STrond Myklebust if (status != -EIO) 3190c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 31911da177e4SLinus Torvalds if (status == 0) { 31928ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 31938ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 31941da177e4SLinus Torvalds } 31951da177e4SLinus Torvalds return status; 31961da177e4SLinus Torvalds } 31971da177e4SLinus Torvalds 31981da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 31991da177e4SLinus Torvalds { 32001da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 32011da177e4SLinus Torvalds } 32021da177e4SLinus Torvalds 32031da177e4SLinus Torvalds /* This is too sick! */ 32041da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 32051da177e4SLinus Torvalds { 32068687b63aSAl Viro __be32 *p; 32071da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 32081da177e4SLinus Torvalds 32091da177e4SLinus Torvalds READ_BUF(12); 32101da177e4SLinus Torvalds READ32(limit_type); 32111da177e4SLinus Torvalds switch (limit_type) { 32121da177e4SLinus Torvalds case 1: 32131da177e4SLinus Torvalds READ64(*maxsize); 32141da177e4SLinus Torvalds break; 32151da177e4SLinus Torvalds case 2: 32161da177e4SLinus Torvalds READ32(nblocks); 32171da177e4SLinus Torvalds READ32(blocksize); 32181da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 32191da177e4SLinus Torvalds } 32201da177e4SLinus Torvalds return 0; 32211da177e4SLinus Torvalds } 32221da177e4SLinus Torvalds 32231da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 32241da177e4SLinus Torvalds { 32258687b63aSAl Viro __be32 *p; 32261da177e4SLinus Torvalds uint32_t delegation_type; 32271da177e4SLinus Torvalds 32281da177e4SLinus Torvalds READ_BUF(4); 32291da177e4SLinus Torvalds READ32(delegation_type); 32301da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 32311da177e4SLinus Torvalds res->delegation_type = 0; 32321da177e4SLinus Torvalds return 0; 32331da177e4SLinus Torvalds } 32348ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 32358ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 32361da177e4SLinus Torvalds READ32(res->do_recall); 323705d564feSAndy Adamson 32381da177e4SLinus Torvalds switch (delegation_type) { 32391da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 32401da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 32411da177e4SLinus Torvalds break; 32421da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 32431da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 32441da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 32451da177e4SLinus Torvalds return -EIO; 32461da177e4SLinus Torvalds } 32477539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 32481da177e4SLinus Torvalds } 32491da177e4SLinus Torvalds 32501da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 32511da177e4SLinus Torvalds { 32528687b63aSAl Viro __be32 *p; 3253aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 32541da177e4SLinus Torvalds int status; 32551da177e4SLinus Torvalds 32561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 3257c1d51931STrond Myklebust if (status != -EIO) 3258c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 32591da177e4SLinus Torvalds if (status) 32601da177e4SLinus Torvalds return status; 32618ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 32628ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 32631da177e4SLinus Torvalds 32641da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 32651da177e4SLinus Torvalds 32661da177e4SLinus Torvalds READ_BUF(8); 32671da177e4SLinus Torvalds READ32(res->rflags); 32681da177e4SLinus Torvalds READ32(bmlen); 32691da177e4SLinus Torvalds if (bmlen > 10) 32701da177e4SLinus Torvalds goto xdr_error; 32711da177e4SLinus Torvalds 32721da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3273aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3274aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3275aa53ed54SJeff Layton READ32(res->attrset[i]); 3276aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3277aa53ed54SJeff Layton res->attrset[i] = 0; 3278aa53ed54SJeff Layton 32791da177e4SLinus Torvalds return decode_delegation(xdr, res); 32801da177e4SLinus Torvalds xdr_error: 32813110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 32821da177e4SLinus Torvalds return -EIO; 32831da177e4SLinus Torvalds } 32841da177e4SLinus Torvalds 32851da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 32861da177e4SLinus Torvalds { 32878687b63aSAl Viro __be32 *p; 32881da177e4SLinus Torvalds int status; 32891da177e4SLinus Torvalds 32901da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 3291c1d51931STrond Myklebust if (status != -EIO) 3292c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 32931da177e4SLinus Torvalds if (status) 32941da177e4SLinus Torvalds return status; 32958ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 32968ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 32971da177e4SLinus Torvalds return 0; 32981da177e4SLinus Torvalds } 32991da177e4SLinus Torvalds 33001da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 33011da177e4SLinus Torvalds { 33028687b63aSAl Viro __be32 *p; 33031da177e4SLinus Torvalds int status; 33041da177e4SLinus Torvalds 33051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 3306c1d51931STrond Myklebust if (status != -EIO) 3307c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33081da177e4SLinus Torvalds if (status) 33091da177e4SLinus Torvalds return status; 33108ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33118ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33121da177e4SLinus Torvalds return 0; 33131da177e4SLinus Torvalds } 33141da177e4SLinus Torvalds 33151da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 33161da177e4SLinus Torvalds { 33171da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 33181da177e4SLinus Torvalds } 33191da177e4SLinus Torvalds 33201da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 33211da177e4SLinus Torvalds { 33221da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 33231da177e4SLinus Torvalds } 33241da177e4SLinus Torvalds 33251da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 33261da177e4SLinus Torvalds { 33271da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 33288687b63aSAl Viro __be32 *p; 33291da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 33301da177e4SLinus Torvalds int status; 33311da177e4SLinus Torvalds 33321da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 33331da177e4SLinus Torvalds if (status) 33341da177e4SLinus Torvalds return status; 33351da177e4SLinus Torvalds READ_BUF(8); 33361da177e4SLinus Torvalds READ32(eof); 33371da177e4SLinus Torvalds READ32(count); 33381da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 33391da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 33401da177e4SLinus Torvalds if (count > recvd) { 3341fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 33421da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 33431da177e4SLinus Torvalds count = recvd; 33441da177e4SLinus Torvalds eof = 0; 33451da177e4SLinus Torvalds } 33461da177e4SLinus Torvalds xdr_read_pages(xdr, count); 33471da177e4SLinus Torvalds res->eof = eof; 33481da177e4SLinus Torvalds res->count = count; 33491da177e4SLinus Torvalds return 0; 33501da177e4SLinus Torvalds } 33511da177e4SLinus Torvalds 33521da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 33531da177e4SLinus Torvalds { 33541da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 33551da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 33561da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3357bcecff77SChuck Lever size_t hdrlen; 3358bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 33598687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 33607bda2cdfSJeff Layton unsigned int nr = 0; 3361bcecff77SChuck Lever int status; 33621da177e4SLinus Torvalds 33631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 33641da177e4SLinus Torvalds if (status) 33651da177e4SLinus Torvalds return status; 33661da177e4SLinus Torvalds READ_BUF(8); 33671da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 336844109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 336944109241SFred Isaman __func__, 3370eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3371eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3372eadf4598STrond Myklebust 33731da177e4SLinus Torvalds 33741da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 33751da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 33761da177e4SLinus Torvalds if (pglen > recvd) 33771da177e4SLinus Torvalds pglen = recvd; 33781da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 33791da177e4SLinus Torvalds 33801da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 33818687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3382e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 33831da177e4SLinus Torvalds entry = p; 33847bda2cdfSJeff Layton 33857bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 33867bda2cdfSJeff Layton if ((entry + 1) > end) 33877bda2cdfSJeff Layton goto short_pkt; 33887bda2cdfSJeff Layton 33897bda2cdfSJeff Layton for (; *p++; nr++) { 3390bcecff77SChuck Lever u32 len, attrlen, xlen; 3391e8896495SDavid Howells if (end - p < 3) 33921da177e4SLinus Torvalds goto short_pkt; 3393eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 33941da177e4SLinus Torvalds p += 2; /* cookie */ 33951da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 33961da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3397fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3398fe82a183SChuck Lever len); 33991da177e4SLinus Torvalds goto err_unmap; 34001da177e4SLinus Torvalds } 3401e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3402e8896495SDavid Howells if (end - p < xlen + 1) 3403e8896495SDavid Howells goto short_pkt; 3404eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3405e8896495SDavid Howells p += xlen; 34061da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3407e8896495SDavid Howells if (end - p < len + 1) 3408e8896495SDavid Howells goto short_pkt; 34091da177e4SLinus Torvalds p += len; 34101da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3411e8896495SDavid Howells if (end - p < attrlen + 2) 34121da177e4SLinus Torvalds goto short_pkt; 3413e8896495SDavid Howells p += attrlen; /* attributes */ 34141da177e4SLinus Torvalds entry = p; 34151da177e4SLinus Torvalds } 34167bda2cdfSJeff Layton /* 34177bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 34187bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 34197bda2cdfSJeff Layton * those, just set the EOF marker. 34207bda2cdfSJeff Layton */ 34217bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 34227bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 34237bda2cdfSJeff Layton entry[1] = 1; 34247bda2cdfSJeff Layton } 34251da177e4SLinus Torvalds out: 34261da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 34271da177e4SLinus Torvalds return 0; 34281da177e4SLinus Torvalds short_pkt: 34297bda2cdfSJeff Layton /* 34307bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 34317bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 34327bda2cdfSJeff Layton * response and return what we have so far. If there are no 34337bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 34347bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 34357bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 34367bda2cdfSJeff Layton * readdir starting at the last cookie. 34377bda2cdfSJeff Layton */ 34383110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 34391da177e4SLinus Torvalds entry[0] = entry[1] = 0; 34407bda2cdfSJeff Layton if (nr) 34411da177e4SLinus Torvalds goto out; 34421da177e4SLinus Torvalds err_unmap: 34431da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 34441da177e4SLinus Torvalds return -errno_NFSERR_IO; 34451da177e4SLinus Torvalds } 34461da177e4SLinus Torvalds 34471da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 34481da177e4SLinus Torvalds { 34491da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 34501da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3451bcecff77SChuck Lever size_t hdrlen; 3452bcecff77SChuck Lever u32 len, recvd; 34538687b63aSAl Viro __be32 *p; 34541da177e4SLinus Torvalds char *kaddr; 34551da177e4SLinus Torvalds int status; 34561da177e4SLinus Torvalds 34571da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 34581da177e4SLinus Torvalds if (status) 34591da177e4SLinus Torvalds return status; 34601da177e4SLinus Torvalds 34611da177e4SLinus Torvalds /* Convert length of symlink */ 34621da177e4SLinus Torvalds READ_BUF(4); 34631da177e4SLinus Torvalds READ32(len); 34641da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3465fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 34661da177e4SLinus Torvalds return -ENAMETOOLONG; 34671da177e4SLinus Torvalds } 34681da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 34691da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 34701da177e4SLinus Torvalds if (recvd < len) { 3471fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 34721da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 34731da177e4SLinus Torvalds return -EIO; 34741da177e4SLinus Torvalds } 34751da177e4SLinus Torvalds xdr_read_pages(xdr, len); 34761da177e4SLinus Torvalds /* 34771da177e4SLinus Torvalds * The XDR encode routine has set things up so that 34781da177e4SLinus Torvalds * the link text will be copied directly into the 34791da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 34801da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 34811da177e4SLinus Torvalds * null-termination). 34821da177e4SLinus Torvalds */ 34831da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 34841da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 34851da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 34861da177e4SLinus Torvalds return 0; 34871da177e4SLinus Torvalds } 34881da177e4SLinus Torvalds 34891da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 34901da177e4SLinus Torvalds { 34911da177e4SLinus Torvalds int status; 34921da177e4SLinus Torvalds 34931da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 34941da177e4SLinus Torvalds if (status) 34951da177e4SLinus Torvalds goto out; 34961da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 34971da177e4SLinus Torvalds out: 34981da177e4SLinus Torvalds return status; 34991da177e4SLinus Torvalds } 35001da177e4SLinus Torvalds 35011da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 35021da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 35031da177e4SLinus Torvalds { 35041da177e4SLinus Torvalds int status; 35051da177e4SLinus Torvalds 35061da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 35071da177e4SLinus Torvalds if (status) 35081da177e4SLinus Torvalds goto out; 35091da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 35101da177e4SLinus Torvalds goto out; 35111da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 35121da177e4SLinus Torvalds out: 35131da177e4SLinus Torvalds return status; 35141da177e4SLinus Torvalds } 35151da177e4SLinus Torvalds 35161da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 35171da177e4SLinus Torvalds { 35181da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 35191da177e4SLinus Torvalds } 35201da177e4SLinus Torvalds 352156ae19f3STrond Myklebust static int 352256ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 352356ae19f3STrond Myklebust { 352456ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 352556ae19f3STrond Myklebust } 352656ae19f3STrond Myklebust 3527029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3528029d105eSJ. Bruce Fields size_t *acl_len) 3529029d105eSJ. Bruce Fields { 35308687b63aSAl Viro __be32 *savep; 3531029d105eSJ. Bruce Fields uint32_t attrlen, 3532029d105eSJ. Bruce Fields bitmap[2] = {0}; 3533029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 3534029d105eSJ. Bruce Fields int status; 3535029d105eSJ. Bruce Fields 3536029d105eSJ. Bruce Fields *acl_len = 0; 3537029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3538029d105eSJ. Bruce Fields goto out; 3539029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3540029d105eSJ. Bruce Fields goto out; 3541029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3542029d105eSJ. Bruce Fields goto out; 3543029d105eSJ. Bruce Fields 3544029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3545029d105eSJ. Bruce Fields return -EIO; 3546029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3547bcecff77SChuck Lever size_t hdrlen; 3548bcecff77SChuck Lever u32 recvd; 3549029d105eSJ. Bruce Fields 3550029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 3551029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 3552029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3553029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 3554029d105eSJ. Bruce Fields if (attrlen > recvd) { 3555fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 3556029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 3557029d105eSJ. Bruce Fields attrlen, recvd); 3558029d105eSJ. Bruce Fields return -EINVAL; 3559029d105eSJ. Bruce Fields } 3560029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 3561029d105eSJ. Bruce Fields *acl_len = attrlen; 35628c233cf9SJ. Bruce Fields } else 35638c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 3564029d105eSJ. Bruce Fields 3565029d105eSJ. Bruce Fields out: 3566029d105eSJ. Bruce Fields return status; 3567029d105eSJ. Bruce Fields } 3568029d105eSJ. Bruce Fields 35691da177e4SLinus Torvalds static int 35701da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 35711da177e4SLinus Torvalds { 35721da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 35731da177e4SLinus Torvalds } 35741da177e4SLinus Torvalds 35751da177e4SLinus Torvalds static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) 35761da177e4SLinus Torvalds { 35778687b63aSAl Viro __be32 *p; 35781da177e4SLinus Torvalds uint32_t bmlen; 35791da177e4SLinus Torvalds int status; 35801da177e4SLinus Torvalds 35811da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 35821da177e4SLinus Torvalds if (status) 35831da177e4SLinus Torvalds return status; 35841da177e4SLinus Torvalds READ_BUF(4); 35851da177e4SLinus Torvalds READ32(bmlen); 35861da177e4SLinus Torvalds READ_BUF(bmlen << 2); 35871da177e4SLinus Torvalds return 0; 35881da177e4SLinus Torvalds } 35891da177e4SLinus Torvalds 3590adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 35911da177e4SLinus Torvalds { 35928687b63aSAl Viro __be32 *p; 35931da177e4SLinus Torvalds uint32_t opnum; 35941da177e4SLinus Torvalds int32_t nfserr; 35951da177e4SLinus Torvalds 35961da177e4SLinus Torvalds READ_BUF(8); 35971da177e4SLinus Torvalds READ32(opnum); 35981da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 3599fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 36001da177e4SLinus Torvalds " %d\n", opnum); 36011da177e4SLinus Torvalds return -EIO; 36021da177e4SLinus Torvalds } 36031da177e4SLinus Torvalds READ32(nfserr); 36041da177e4SLinus Torvalds if (nfserr == NFS_OK) { 36058ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 36061da177e4SLinus Torvalds READ64(clp->cl_clientid); 36078ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 36081da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 36091da177e4SLinus Torvalds uint32_t len; 36101da177e4SLinus Torvalds 36111da177e4SLinus Torvalds /* skip netid string */ 36121da177e4SLinus Torvalds READ_BUF(4); 36131da177e4SLinus Torvalds READ32(len); 36141da177e4SLinus Torvalds READ_BUF(len); 36151da177e4SLinus Torvalds 36161da177e4SLinus Torvalds /* skip uaddr string */ 36171da177e4SLinus Torvalds READ_BUF(4); 36181da177e4SLinus Torvalds READ32(len); 36191da177e4SLinus Torvalds READ_BUF(len); 36201da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 36211da177e4SLinus Torvalds } else 3622856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 36231da177e4SLinus Torvalds 36241da177e4SLinus Torvalds return 0; 36251da177e4SLinus Torvalds } 36261da177e4SLinus Torvalds 36271da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 36281da177e4SLinus Torvalds { 36291da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 36301da177e4SLinus Torvalds } 36311da177e4SLinus Torvalds 36321da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 36331da177e4SLinus Torvalds { 36348687b63aSAl Viro __be32 *p; 36351da177e4SLinus Torvalds int status; 36361da177e4SLinus Torvalds 36371da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 36381da177e4SLinus Torvalds if (status) 36391da177e4SLinus Torvalds return status; 36401da177e4SLinus Torvalds 36411da177e4SLinus Torvalds READ_BUF(16); 36421da177e4SLinus Torvalds READ32(res->count); 36431da177e4SLinus Torvalds READ32(res->verf->committed); 36441da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 36451da177e4SLinus Torvalds return 0; 36461da177e4SLinus Torvalds } 36471da177e4SLinus Torvalds 36481da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 36491da177e4SLinus Torvalds { 36501da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 36511da177e4SLinus Torvalds } 36521da177e4SLinus Torvalds 36531da177e4SLinus Torvalds /* 365449c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 365549c2559eSBenny Halevy */ 365649c2559eSBenny Halevy 365749c2559eSBenny Halevy /* 36581da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 36591da177e4SLinus Torvalds */ 36608687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 36611da177e4SLinus Torvalds { 36621da177e4SLinus Torvalds struct xdr_stream xdr; 36631da177e4SLinus Torvalds struct compound_hdr hdr; 36641da177e4SLinus Torvalds int status; 36651da177e4SLinus Torvalds 36661da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36671da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 36681da177e4SLinus Torvalds if (status) 36691da177e4SLinus Torvalds goto out; 36701da177e4SLinus Torvalds status = decode_putfh(&xdr); 36711da177e4SLinus Torvalds if (status) 36721da177e4SLinus Torvalds goto out; 36731da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 3674516a6af6STrond Myklebust if (status != 0) 3675516a6af6STrond Myklebust goto out; 3676516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 36771da177e4SLinus Torvalds out: 36781da177e4SLinus Torvalds return status; 36791da177e4SLinus Torvalds } 36801da177e4SLinus Torvalds 36811da177e4SLinus Torvalds /* 36821da177e4SLinus Torvalds * Decode ACCESS response 36831da177e4SLinus Torvalds */ 36848687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 36851da177e4SLinus Torvalds { 36861da177e4SLinus Torvalds struct xdr_stream xdr; 36871da177e4SLinus Torvalds struct compound_hdr hdr; 36881da177e4SLinus Torvalds int status; 36891da177e4SLinus Torvalds 36901da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 36911da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 36921da177e4SLinus Torvalds goto out; 369376b32999STrond Myklebust status = decode_putfh(&xdr); 369476b32999STrond Myklebust if (status != 0) 369576b32999STrond Myklebust goto out; 36961da177e4SLinus Torvalds status = decode_access(&xdr, res); 369776b32999STrond Myklebust if (status != 0) 369876b32999STrond Myklebust goto out; 369976b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 37001da177e4SLinus Torvalds out: 37011da177e4SLinus Torvalds return status; 37021da177e4SLinus Torvalds } 37031da177e4SLinus Torvalds 37041da177e4SLinus Torvalds /* 37051da177e4SLinus Torvalds * Decode LOOKUP response 37061da177e4SLinus Torvalds */ 37078687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 37081da177e4SLinus Torvalds { 37091da177e4SLinus Torvalds struct xdr_stream xdr; 37101da177e4SLinus Torvalds struct compound_hdr hdr; 37111da177e4SLinus Torvalds int status; 37121da177e4SLinus Torvalds 37131da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37141da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37151da177e4SLinus Torvalds goto out; 37161da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 37171da177e4SLinus Torvalds goto out; 37181da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 37191da177e4SLinus Torvalds goto out; 37201da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 37211da177e4SLinus Torvalds goto out; 37221da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 37231da177e4SLinus Torvalds out: 37241da177e4SLinus Torvalds return status; 37251da177e4SLinus Torvalds } 37261da177e4SLinus Torvalds 37271da177e4SLinus Torvalds /* 37281da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 37291da177e4SLinus Torvalds */ 37308687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 37311da177e4SLinus Torvalds { 37321da177e4SLinus Torvalds struct xdr_stream xdr; 37331da177e4SLinus Torvalds struct compound_hdr hdr; 37341da177e4SLinus Torvalds int status; 37351da177e4SLinus Torvalds 37361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37371da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37381da177e4SLinus Torvalds goto out; 37391da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 37401da177e4SLinus Torvalds goto out; 37411da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 37421da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 37431da177e4SLinus Torvalds out: 37441da177e4SLinus Torvalds return status; 37451da177e4SLinus Torvalds } 37461da177e4SLinus Torvalds 37471da177e4SLinus Torvalds /* 37481da177e4SLinus Torvalds * Decode REMOVE response 37491da177e4SLinus Torvalds */ 37504fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 37511da177e4SLinus Torvalds { 37521da177e4SLinus Torvalds struct xdr_stream xdr; 37531da177e4SLinus Torvalds struct compound_hdr hdr; 37541da177e4SLinus Torvalds int status; 37551da177e4SLinus Torvalds 37561da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37571da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37581da177e4SLinus Torvalds goto out; 375916e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 376016e42959STrond Myklebust goto out; 376116e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 376216e42959STrond Myklebust goto out; 37634fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 37641da177e4SLinus Torvalds out: 37651da177e4SLinus Torvalds return status; 37661da177e4SLinus Torvalds } 37671da177e4SLinus Torvalds 37681da177e4SLinus Torvalds /* 37691da177e4SLinus Torvalds * Decode RENAME response 37701da177e4SLinus Torvalds */ 37718687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 37721da177e4SLinus Torvalds { 37731da177e4SLinus Torvalds struct xdr_stream xdr; 37741da177e4SLinus Torvalds struct compound_hdr hdr; 37751da177e4SLinus Torvalds int status; 37761da177e4SLinus Torvalds 37771da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37781da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37791da177e4SLinus Torvalds goto out; 37801da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 37811da177e4SLinus Torvalds goto out; 37821da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 37831da177e4SLinus Torvalds goto out; 37841da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 37851da177e4SLinus Torvalds goto out; 37866caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 37876caf2c82STrond Myklebust goto out; 37886caf2c82STrond Myklebust /* Current FH is target directory */ 37896caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 37906caf2c82STrond Myklebust goto out; 37916caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 37926caf2c82STrond Myklebust goto out; 37936caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 37941da177e4SLinus Torvalds out: 37951da177e4SLinus Torvalds return status; 37961da177e4SLinus Torvalds } 37971da177e4SLinus Torvalds 37981da177e4SLinus Torvalds /* 37991da177e4SLinus Torvalds * Decode LINK response 38001da177e4SLinus Torvalds */ 38018687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 38021da177e4SLinus Torvalds { 38031da177e4SLinus Torvalds struct xdr_stream xdr; 38041da177e4SLinus Torvalds struct compound_hdr hdr; 38051da177e4SLinus Torvalds int status; 38061da177e4SLinus Torvalds 38071da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38081da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38091da177e4SLinus Torvalds goto out; 38101da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38111da177e4SLinus Torvalds goto out; 38121da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 38131da177e4SLinus Torvalds goto out; 38141da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38151da177e4SLinus Torvalds goto out; 381691ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 381791ba2eeeSTrond Myklebust goto out; 381891ba2eeeSTrond Myklebust /* 381991ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 382091ba2eeeSTrond Myklebust * filehandle. 382191ba2eeeSTrond Myklebust */ 382291ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 382391ba2eeeSTrond Myklebust goto out; 382491ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 382591ba2eeeSTrond Myklebust goto out; 382691ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 38271da177e4SLinus Torvalds out: 38281da177e4SLinus Torvalds return status; 38291da177e4SLinus Torvalds } 38301da177e4SLinus Torvalds 38311da177e4SLinus Torvalds /* 38321da177e4SLinus Torvalds * Decode CREATE response 38331da177e4SLinus Torvalds */ 38348687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 38351da177e4SLinus Torvalds { 38361da177e4SLinus Torvalds struct xdr_stream xdr; 38371da177e4SLinus Torvalds struct compound_hdr hdr; 38381da177e4SLinus Torvalds int status; 38391da177e4SLinus Torvalds 38401da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38411da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38421da177e4SLinus Torvalds goto out; 38431da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38441da177e4SLinus Torvalds goto out; 384556ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 384656ae19f3STrond Myklebust goto out; 38471da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 38481da177e4SLinus Torvalds goto out; 38491da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 38501da177e4SLinus Torvalds goto out; 385156ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 385256ae19f3STrond Myklebust goto out; 385356ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 385456ae19f3STrond Myklebust goto out; 385556ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 38561da177e4SLinus Torvalds out: 38571da177e4SLinus Torvalds return status; 38581da177e4SLinus Torvalds } 38591da177e4SLinus Torvalds 38601da177e4SLinus Torvalds /* 38611da177e4SLinus Torvalds * Decode SYMLINK response 38621da177e4SLinus Torvalds */ 38638687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 38641da177e4SLinus Torvalds { 38651da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 38661da177e4SLinus Torvalds } 38671da177e4SLinus Torvalds 38681da177e4SLinus Torvalds /* 38691da177e4SLinus Torvalds * Decode GETATTR response 38701da177e4SLinus Torvalds */ 38718687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 38721da177e4SLinus Torvalds { 38731da177e4SLinus Torvalds struct xdr_stream xdr; 38741da177e4SLinus Torvalds struct compound_hdr hdr; 38751da177e4SLinus Torvalds int status; 38761da177e4SLinus Torvalds 38771da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38781da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 38791da177e4SLinus Torvalds if (status) 38801da177e4SLinus Torvalds goto out; 38811da177e4SLinus Torvalds status = decode_putfh(&xdr); 38821da177e4SLinus Torvalds if (status) 38831da177e4SLinus Torvalds goto out; 38841da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38851da177e4SLinus Torvalds out: 38861da177e4SLinus Torvalds return status; 38871da177e4SLinus Torvalds } 38881da177e4SLinus Torvalds 388923ec6965SJ. Bruce Fields /* 389023ec6965SJ. Bruce Fields * Encode an SETACL request 389123ec6965SJ. Bruce Fields */ 389223ec6965SJ. Bruce Fields static int 38938687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 389423ec6965SJ. Bruce Fields { 389523ec6965SJ. Bruce Fields struct xdr_stream xdr; 389623ec6965SJ. Bruce Fields struct compound_hdr hdr = { 3897d017931cSAndy Adamson .nops = 0, 389823ec6965SJ. Bruce Fields }; 389923ec6965SJ. Bruce Fields int status; 390023ec6965SJ. Bruce Fields 390123ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 390223ec6965SJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 3903cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 3904d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 3905d017931cSAndy Adamson encode_nops(&hdr); 390623ec6965SJ. Bruce Fields return status; 390723ec6965SJ. Bruce Fields } 390805d564feSAndy Adamson 390923ec6965SJ. Bruce Fields /* 391023ec6965SJ. Bruce Fields * Decode SETACL response 391123ec6965SJ. Bruce Fields */ 391223ec6965SJ. Bruce Fields static int 39138687b63aSAl Viro nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) 391423ec6965SJ. Bruce Fields { 391523ec6965SJ. Bruce Fields struct xdr_stream xdr; 391623ec6965SJ. Bruce Fields struct compound_hdr hdr; 391723ec6965SJ. Bruce Fields int status; 391823ec6965SJ. Bruce Fields 391923ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 392023ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 392123ec6965SJ. Bruce Fields if (status) 392223ec6965SJ. Bruce Fields goto out; 392323ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 392423ec6965SJ. Bruce Fields if (status) 392523ec6965SJ. Bruce Fields goto out; 392623ec6965SJ. Bruce Fields status = decode_setattr(&xdr, res); 392723ec6965SJ. Bruce Fields out: 392823ec6965SJ. Bruce Fields return status; 392923ec6965SJ. Bruce Fields } 39301da177e4SLinus Torvalds 39311da177e4SLinus Torvalds /* 3932029d105eSJ. Bruce Fields * Decode GETACL response 3933029d105eSJ. Bruce Fields */ 3934029d105eSJ. Bruce Fields static int 39358687b63aSAl Viro nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) 3936029d105eSJ. Bruce Fields { 3937029d105eSJ. Bruce Fields struct xdr_stream xdr; 3938029d105eSJ. Bruce Fields struct compound_hdr hdr; 3939029d105eSJ. Bruce Fields int status; 3940029d105eSJ. Bruce Fields 3941029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 3942029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 3943029d105eSJ. Bruce Fields if (status) 3944029d105eSJ. Bruce Fields goto out; 3945029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 3946029d105eSJ. Bruce Fields if (status) 3947029d105eSJ. Bruce Fields goto out; 3948029d105eSJ. Bruce Fields status = decode_getacl(&xdr, rqstp, acl_len); 3949029d105eSJ. Bruce Fields 3950029d105eSJ. Bruce Fields out: 3951029d105eSJ. Bruce Fields return status; 3952029d105eSJ. Bruce Fields } 3953029d105eSJ. Bruce Fields 3954029d105eSJ. Bruce Fields /* 39551da177e4SLinus Torvalds * Decode CLOSE response 39561da177e4SLinus Torvalds */ 39578687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 39581da177e4SLinus Torvalds { 39591da177e4SLinus Torvalds struct xdr_stream xdr; 39601da177e4SLinus Torvalds struct compound_hdr hdr; 39611da177e4SLinus Torvalds int status; 39621da177e4SLinus Torvalds 39631da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39641da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39651da177e4SLinus Torvalds if (status) 39661da177e4SLinus Torvalds goto out; 39671da177e4SLinus Torvalds status = decode_putfh(&xdr); 39681da177e4SLinus Torvalds if (status) 39691da177e4SLinus Torvalds goto out; 39701da177e4SLinus Torvalds status = decode_close(&xdr, res); 3971516a6af6STrond Myklebust if (status != 0) 3972516a6af6STrond Myklebust goto out; 3973516a6af6STrond Myklebust /* 3974516a6af6STrond Myklebust * Note: Server may do delete on close for this file 3975516a6af6STrond Myklebust * in which case the getattr call will fail with 3976516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 3977516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 3978516a6af6STrond Myklebust */ 3979516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 39801da177e4SLinus Torvalds out: 39811da177e4SLinus Torvalds return status; 39821da177e4SLinus Torvalds } 39831da177e4SLinus Torvalds 39841da177e4SLinus Torvalds /* 39851da177e4SLinus Torvalds * Decode OPEN response 39861da177e4SLinus Torvalds */ 39878687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 39881da177e4SLinus Torvalds { 39891da177e4SLinus Torvalds struct xdr_stream xdr; 39901da177e4SLinus Torvalds struct compound_hdr hdr; 39911da177e4SLinus Torvalds int status; 39921da177e4SLinus Torvalds 39931da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39941da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39951da177e4SLinus Torvalds if (status) 39961da177e4SLinus Torvalds goto out; 39971da177e4SLinus Torvalds status = decode_putfh(&xdr); 39981da177e4SLinus Torvalds if (status) 39991da177e4SLinus Torvalds goto out; 400056ae19f3STrond Myklebust status = decode_savefh(&xdr); 400156ae19f3STrond Myklebust if (status) 400256ae19f3STrond Myklebust goto out; 40031da177e4SLinus Torvalds status = decode_open(&xdr, res); 40041da177e4SLinus Torvalds if (status) 40051da177e4SLinus Torvalds goto out; 40069936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 40071da177e4SLinus Torvalds goto out; 400856ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 400956ae19f3STrond Myklebust goto out; 4010365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 401156ae19f3STrond Myklebust goto out; 401256ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 40131da177e4SLinus Torvalds out: 40141da177e4SLinus Torvalds return status; 40151da177e4SLinus Torvalds } 40161da177e4SLinus Torvalds 40171da177e4SLinus Torvalds /* 40181da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 40191da177e4SLinus Torvalds */ 40208687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 40211da177e4SLinus Torvalds { 40221da177e4SLinus Torvalds struct xdr_stream xdr; 40231da177e4SLinus Torvalds struct compound_hdr hdr; 40241da177e4SLinus Torvalds int status; 40251da177e4SLinus Torvalds 40261da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40271da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40281da177e4SLinus Torvalds if (status) 40291da177e4SLinus Torvalds goto out; 40301da177e4SLinus Torvalds status = decode_putfh(&xdr); 40311da177e4SLinus Torvalds if (status) 40321da177e4SLinus Torvalds goto out; 40331da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 40341da177e4SLinus Torvalds out: 40351da177e4SLinus Torvalds return status; 40361da177e4SLinus Torvalds } 40371da177e4SLinus Torvalds 40381da177e4SLinus Torvalds /* 40391da177e4SLinus Torvalds * Decode OPEN response 40401da177e4SLinus Torvalds */ 40418687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 40421da177e4SLinus Torvalds { 40431da177e4SLinus Torvalds struct xdr_stream xdr; 40441da177e4SLinus Torvalds struct compound_hdr hdr; 40451da177e4SLinus Torvalds int status; 40461da177e4SLinus Torvalds 40471da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40481da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40491da177e4SLinus Torvalds if (status) 40501da177e4SLinus Torvalds goto out; 40511da177e4SLinus Torvalds status = decode_putfh(&xdr); 40521da177e4SLinus Torvalds if (status) 40531da177e4SLinus Torvalds goto out; 40541da177e4SLinus Torvalds status = decode_open(&xdr, res); 4055864472e9STrond Myklebust if (status) 4056864472e9STrond Myklebust goto out; 4057864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 40581da177e4SLinus Torvalds out: 40591da177e4SLinus Torvalds return status; 40601da177e4SLinus Torvalds } 40611da177e4SLinus Torvalds 40621da177e4SLinus Torvalds /* 40631da177e4SLinus Torvalds * Decode SETATTR response 40641da177e4SLinus Torvalds */ 40658687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 40661da177e4SLinus Torvalds { 40671da177e4SLinus Torvalds struct xdr_stream xdr; 40681da177e4SLinus Torvalds struct compound_hdr hdr; 40691da177e4SLinus Torvalds int status; 40701da177e4SLinus Torvalds 40711da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40721da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40731da177e4SLinus Torvalds if (status) 40741da177e4SLinus Torvalds goto out; 40751da177e4SLinus Torvalds status = decode_putfh(&xdr); 40761da177e4SLinus Torvalds if (status) 40771da177e4SLinus Torvalds goto out; 40781da177e4SLinus Torvalds status = decode_setattr(&xdr, res); 40791da177e4SLinus Torvalds if (status) 40801da177e4SLinus Torvalds goto out; 40811da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 40821da177e4SLinus Torvalds if (status == NFS4ERR_DELAY) 40831da177e4SLinus Torvalds status = 0; 40841da177e4SLinus Torvalds out: 40851da177e4SLinus Torvalds return status; 40861da177e4SLinus Torvalds } 40871da177e4SLinus Torvalds 40881da177e4SLinus Torvalds /* 40891da177e4SLinus Torvalds * Decode LOCK response 40901da177e4SLinus Torvalds */ 40918687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *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; 41041da177e4SLinus Torvalds status = decode_lock(&xdr, res); 41051da177e4SLinus Torvalds out: 41061da177e4SLinus Torvalds return status; 41071da177e4SLinus Torvalds } 41081da177e4SLinus Torvalds 41091da177e4SLinus Torvalds /* 41101da177e4SLinus Torvalds * Decode LOCKT response 41111da177e4SLinus Torvalds */ 41128687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 41131da177e4SLinus Torvalds { 41141da177e4SLinus Torvalds struct xdr_stream xdr; 41151da177e4SLinus Torvalds struct compound_hdr hdr; 41161da177e4SLinus Torvalds int status; 41171da177e4SLinus Torvalds 41181da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41191da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41201da177e4SLinus Torvalds if (status) 41211da177e4SLinus Torvalds goto out; 41221da177e4SLinus Torvalds status = decode_putfh(&xdr); 41231da177e4SLinus Torvalds if (status) 41241da177e4SLinus Torvalds goto out; 41251da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 41261da177e4SLinus Torvalds out: 41271da177e4SLinus Torvalds return status; 41281da177e4SLinus Torvalds } 41291da177e4SLinus Torvalds 41301da177e4SLinus Torvalds /* 41311da177e4SLinus Torvalds * Decode LOCKU response 41321da177e4SLinus Torvalds */ 41338687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 41341da177e4SLinus Torvalds { 41351da177e4SLinus Torvalds struct xdr_stream xdr; 41361da177e4SLinus Torvalds struct compound_hdr hdr; 41371da177e4SLinus Torvalds int status; 41381da177e4SLinus Torvalds 41391da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41401da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41411da177e4SLinus Torvalds if (status) 41421da177e4SLinus Torvalds goto out; 41431da177e4SLinus Torvalds status = decode_putfh(&xdr); 41441da177e4SLinus Torvalds if (status) 41451da177e4SLinus Torvalds goto out; 41461da177e4SLinus Torvalds status = decode_locku(&xdr, res); 41471da177e4SLinus Torvalds out: 41481da177e4SLinus Torvalds return status; 41491da177e4SLinus Torvalds } 41501da177e4SLinus Torvalds 41511da177e4SLinus Torvalds /* 41521da177e4SLinus Torvalds * Decode READLINK response 41531da177e4SLinus Torvalds */ 41548687b63aSAl Viro static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) 41551da177e4SLinus Torvalds { 41561da177e4SLinus Torvalds struct xdr_stream xdr; 41571da177e4SLinus Torvalds struct compound_hdr hdr; 41581da177e4SLinus Torvalds int status; 41591da177e4SLinus Torvalds 41601da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41611da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41621da177e4SLinus Torvalds if (status) 41631da177e4SLinus Torvalds goto out; 41641da177e4SLinus Torvalds status = decode_putfh(&xdr); 41651da177e4SLinus Torvalds if (status) 41661da177e4SLinus Torvalds goto out; 41671da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 41681da177e4SLinus Torvalds out: 41691da177e4SLinus Torvalds return status; 41701da177e4SLinus Torvalds } 41711da177e4SLinus Torvalds 41721da177e4SLinus Torvalds /* 41731da177e4SLinus Torvalds * Decode READDIR response 41741da177e4SLinus Torvalds */ 41758687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 41761da177e4SLinus Torvalds { 41771da177e4SLinus Torvalds struct xdr_stream xdr; 41781da177e4SLinus Torvalds struct compound_hdr hdr; 41791da177e4SLinus Torvalds int status; 41801da177e4SLinus Torvalds 41811da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41821da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41831da177e4SLinus Torvalds if (status) 41841da177e4SLinus Torvalds goto out; 41851da177e4SLinus Torvalds status = decode_putfh(&xdr); 41861da177e4SLinus Torvalds if (status) 41871da177e4SLinus Torvalds goto out; 41881da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 41891da177e4SLinus Torvalds out: 41901da177e4SLinus Torvalds return status; 41911da177e4SLinus Torvalds } 41921da177e4SLinus Torvalds 41931da177e4SLinus Torvalds /* 41941da177e4SLinus Torvalds * Decode Read response 41951da177e4SLinus Torvalds */ 41968687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 41971da177e4SLinus Torvalds { 41981da177e4SLinus Torvalds struct xdr_stream xdr; 41991da177e4SLinus Torvalds struct compound_hdr hdr; 42001da177e4SLinus Torvalds int status; 42011da177e4SLinus Torvalds 42021da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42031da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42041da177e4SLinus Torvalds if (status) 42051da177e4SLinus Torvalds goto out; 42061da177e4SLinus Torvalds status = decode_putfh(&xdr); 42071da177e4SLinus Torvalds if (status) 42081da177e4SLinus Torvalds goto out; 42091da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 42101da177e4SLinus Torvalds if (!status) 42111da177e4SLinus Torvalds status = res->count; 42121da177e4SLinus Torvalds out: 42131da177e4SLinus Torvalds return status; 42141da177e4SLinus Torvalds } 42151da177e4SLinus Torvalds 42161da177e4SLinus Torvalds /* 42171da177e4SLinus Torvalds * Decode WRITE response 42181da177e4SLinus Torvalds */ 42198687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 42201da177e4SLinus Torvalds { 42211da177e4SLinus Torvalds struct xdr_stream xdr; 42221da177e4SLinus Torvalds struct compound_hdr hdr; 42231da177e4SLinus Torvalds int status; 42241da177e4SLinus Torvalds 42251da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42261da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42271da177e4SLinus Torvalds if (status) 42281da177e4SLinus Torvalds goto out; 42291da177e4SLinus Torvalds status = decode_putfh(&xdr); 42301da177e4SLinus Torvalds if (status) 42311da177e4SLinus Torvalds goto out; 42321da177e4SLinus Torvalds status = decode_write(&xdr, res); 42334f9838c7STrond Myklebust if (status) 42344f9838c7STrond Myklebust goto out; 42354f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 42361da177e4SLinus Torvalds if (!status) 42371da177e4SLinus Torvalds status = res->count; 42381da177e4SLinus Torvalds out: 42391da177e4SLinus Torvalds return status; 42401da177e4SLinus Torvalds } 42411da177e4SLinus Torvalds 42421da177e4SLinus Torvalds /* 42431da177e4SLinus Torvalds * Decode COMMIT response 42441da177e4SLinus Torvalds */ 42458687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 42461da177e4SLinus Torvalds { 42471da177e4SLinus Torvalds struct xdr_stream xdr; 42481da177e4SLinus Torvalds struct compound_hdr hdr; 42491da177e4SLinus Torvalds int status; 42501da177e4SLinus Torvalds 42511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42531da177e4SLinus Torvalds if (status) 42541da177e4SLinus Torvalds goto out; 42551da177e4SLinus Torvalds status = decode_putfh(&xdr); 42561da177e4SLinus Torvalds if (status) 42571da177e4SLinus Torvalds goto out; 42581da177e4SLinus Torvalds status = decode_commit(&xdr, res); 42594f9838c7STrond Myklebust if (status) 42604f9838c7STrond Myklebust goto out; 42614f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 42621da177e4SLinus Torvalds out: 42631da177e4SLinus Torvalds return status; 42641da177e4SLinus Torvalds } 42651da177e4SLinus Torvalds 42661da177e4SLinus Torvalds /* 42671da177e4SLinus Torvalds * FSINFO request 42681da177e4SLinus Torvalds */ 42698687b63aSAl Viro static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 42701da177e4SLinus Torvalds { 42711da177e4SLinus Torvalds struct xdr_stream xdr; 42721da177e4SLinus Torvalds struct compound_hdr hdr; 42731da177e4SLinus Torvalds int status; 42741da177e4SLinus Torvalds 42751da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 42761da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42771da177e4SLinus Torvalds if (!status) 42781da177e4SLinus Torvalds status = decode_putfh(&xdr); 42791da177e4SLinus Torvalds if (!status) 42801da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 42811da177e4SLinus Torvalds return status; 42821da177e4SLinus Torvalds } 42831da177e4SLinus Torvalds 42841da177e4SLinus Torvalds /* 42851da177e4SLinus Torvalds * PATHCONF request 42861da177e4SLinus Torvalds */ 42878687b63aSAl Viro static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) 42881da177e4SLinus Torvalds { 42891da177e4SLinus Torvalds struct xdr_stream xdr; 42901da177e4SLinus Torvalds struct compound_hdr hdr; 42911da177e4SLinus Torvalds int status; 42921da177e4SLinus Torvalds 42931da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 42941da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42951da177e4SLinus Torvalds if (!status) 42961da177e4SLinus Torvalds status = decode_putfh(&xdr); 42971da177e4SLinus Torvalds if (!status) 42981da177e4SLinus Torvalds status = decode_pathconf(&xdr, pathconf); 42991da177e4SLinus Torvalds return status; 43001da177e4SLinus Torvalds } 43011da177e4SLinus Torvalds 43021da177e4SLinus Torvalds /* 43031da177e4SLinus Torvalds * STATFS request 43041da177e4SLinus Torvalds */ 43058687b63aSAl Viro static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) 43061da177e4SLinus Torvalds { 43071da177e4SLinus Torvalds struct xdr_stream xdr; 43081da177e4SLinus Torvalds struct compound_hdr hdr; 43091da177e4SLinus Torvalds int status; 43101da177e4SLinus Torvalds 43111da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43121da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43131da177e4SLinus Torvalds if (!status) 43141da177e4SLinus Torvalds status = decode_putfh(&xdr); 43151da177e4SLinus Torvalds if (!status) 43161da177e4SLinus Torvalds status = decode_statfs(&xdr, fsstat); 43171da177e4SLinus Torvalds return status; 43181da177e4SLinus Torvalds } 43191da177e4SLinus Torvalds 43201da177e4SLinus Torvalds /* 43211da177e4SLinus Torvalds * GETATTR_BITMAP request 43221da177e4SLinus Torvalds */ 43238687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 43241da177e4SLinus Torvalds { 43251da177e4SLinus Torvalds struct xdr_stream xdr; 43261da177e4SLinus Torvalds struct compound_hdr hdr; 43271da177e4SLinus Torvalds int status; 43281da177e4SLinus Torvalds 43291da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43301da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 43311da177e4SLinus Torvalds goto out; 43321da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 43331da177e4SLinus Torvalds goto out; 43341da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 43351da177e4SLinus Torvalds out: 43361da177e4SLinus Torvalds return status; 43371da177e4SLinus Torvalds } 43381da177e4SLinus Torvalds 43391da177e4SLinus Torvalds /* 43401da177e4SLinus Torvalds * Decode RENEW response 43411da177e4SLinus Torvalds */ 43428687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 43431da177e4SLinus Torvalds { 43441da177e4SLinus Torvalds struct xdr_stream xdr; 43451da177e4SLinus Torvalds struct compound_hdr hdr; 43461da177e4SLinus Torvalds int status; 43471da177e4SLinus Torvalds 43481da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43491da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43501da177e4SLinus Torvalds if (!status) 43511da177e4SLinus Torvalds status = decode_renew(&xdr); 43521da177e4SLinus Torvalds return status; 43531da177e4SLinus Torvalds } 43541da177e4SLinus Torvalds 43551da177e4SLinus Torvalds /* 43561da177e4SLinus Torvalds * a SETCLIENTID request 43571da177e4SLinus Torvalds */ 43588687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 4359adfa6f98SDavid Howells struct nfs_client *clp) 43601da177e4SLinus Torvalds { 43611da177e4SLinus Torvalds struct xdr_stream xdr; 43621da177e4SLinus Torvalds struct compound_hdr hdr; 43631da177e4SLinus Torvalds int status; 43641da177e4SLinus Torvalds 43651da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43661da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43671da177e4SLinus Torvalds if (!status) 43681da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 43691da177e4SLinus Torvalds return status; 43701da177e4SLinus Torvalds } 43711da177e4SLinus Torvalds 43721da177e4SLinus Torvalds /* 43731da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 43741da177e4SLinus Torvalds */ 43758687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 43761da177e4SLinus Torvalds { 43771da177e4SLinus Torvalds struct xdr_stream xdr; 43781da177e4SLinus Torvalds struct compound_hdr hdr; 43791da177e4SLinus Torvalds int status; 43801da177e4SLinus Torvalds 43811da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43821da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43831da177e4SLinus Torvalds if (!status) 43841da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 43851da177e4SLinus Torvalds if (!status) 43861da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 43871da177e4SLinus Torvalds if (!status) 43881da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 43891da177e4SLinus Torvalds return status; 43901da177e4SLinus Torvalds } 43911da177e4SLinus Torvalds 43921da177e4SLinus Torvalds /* 43931da177e4SLinus Torvalds * DELEGRETURN request 43941da177e4SLinus Torvalds */ 43958687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 43961da177e4SLinus Torvalds { 43971da177e4SLinus Torvalds struct xdr_stream xdr; 43981da177e4SLinus Torvalds struct compound_hdr hdr; 43991da177e4SLinus Torvalds int status; 44001da177e4SLinus Torvalds 44011da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44021da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 4403fa178f29STrond Myklebust if (status != 0) 4404fa178f29STrond Myklebust goto out; 44051da177e4SLinus Torvalds status = decode_putfh(&xdr); 4406fa178f29STrond Myklebust if (status != 0) 4407fa178f29STrond Myklebust goto out; 44081da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 4409fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 4410fa178f29STrond Myklebust out: 44111da177e4SLinus Torvalds return status; 44121da177e4SLinus Torvalds } 44131da177e4SLinus Torvalds 4414683b57b4STrond Myklebust /* 4415683b57b4STrond Myklebust * FS_LOCATIONS request 4416683b57b4STrond Myklebust */ 44178687b63aSAl Viro static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) 4418683b57b4STrond Myklebust { 4419683b57b4STrond Myklebust struct xdr_stream xdr; 4420683b57b4STrond Myklebust struct compound_hdr hdr; 4421683b57b4STrond Myklebust int status; 4422683b57b4STrond Myklebust 4423683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4424683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 4425683b57b4STrond Myklebust if (status != 0) 4426683b57b4STrond Myklebust goto out; 4427683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 4428683b57b4STrond Myklebust goto out; 4429683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 4430683b57b4STrond Myklebust goto out; 4431683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 4432683b57b4STrond Myklebust status = decode_getfattr(&xdr, &res->fattr, res->server); 4433683b57b4STrond Myklebust out: 4434683b57b4STrond Myklebust return status; 4435683b57b4STrond Myklebust } 4436683b57b4STrond Myklebust 44370dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 44381da177e4SLinus Torvalds { 44391da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 44401da177e4SLinus Torvalds uint32_t len; 44411da177e4SLinus Torvalds 44421da177e4SLinus Torvalds if (!*p++) { 44431da177e4SLinus Torvalds if (!*p) 44441da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 44451da177e4SLinus Torvalds entry->eof = 1; 44461da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 44471da177e4SLinus Torvalds } 44481da177e4SLinus Torvalds 44491da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 44501da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 44511da177e4SLinus Torvalds entry->len = ntohl(*p++); 44521da177e4SLinus Torvalds entry->name = (const char *) p; 44531da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 44541da177e4SLinus Torvalds 44551da177e4SLinus Torvalds /* 44561da177e4SLinus Torvalds * In case the server doesn't return an inode number, 44571da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 44581da177e4SLinus Torvalds * since glibc seems to choke on it...) 44591da177e4SLinus Torvalds */ 44601da177e4SLinus Torvalds entry->ino = 1; 44611da177e4SLinus Torvalds 44621da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 44631da177e4SLinus Torvalds if (len-- > 0) { 44641da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 44651da177e4SLinus Torvalds if (len-- > 0) { 44661da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 44671da177e4SLinus Torvalds p += len; 44681da177e4SLinus Torvalds } 44691da177e4SLinus Torvalds } 44701da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 44711da177e4SLinus Torvalds if (len > 0) { 447297d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 447397d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 447497d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 447597d312d0SManoj Naik p++; 447697d312d0SManoj Naik len--; 447797d312d0SManoj Naik } 44781da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 44791da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 44801da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 44811da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 44821da177e4SLinus Torvalds p += len; 44831da177e4SLinus Torvalds } 44841da177e4SLinus Torvalds 44851da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 44861da177e4SLinus Torvalds return p; 44871da177e4SLinus Torvalds } 44881da177e4SLinus Torvalds 44891da177e4SLinus Torvalds /* 44901da177e4SLinus Torvalds * We need to translate between nfs status return values and 44911da177e4SLinus Torvalds * the local errno values which may not be the same. 44921da177e4SLinus Torvalds */ 44931da177e4SLinus Torvalds static struct { 44941da177e4SLinus Torvalds int stat; 44951da177e4SLinus Torvalds int errno; 44961da177e4SLinus Torvalds } nfs_errtbl[] = { 44971da177e4SLinus Torvalds { NFS4_OK, 0 }, 4498856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 4499856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 4500856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 4501856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 4502856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 4503856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 4504856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 4505856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 4506856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 4507856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 4508856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 4509856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 4510856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 4511856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 4512856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 4513856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 4514856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 4515856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 4516856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 4517856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 4518856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 4519856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 4520856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 4521856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 4522856dff3dSBenny Halevy { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, 4523856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 4524856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 4525856dff3dSBenny Halevy { NFS4ERR_RESOURCE, -EREMOTEIO }, 4526856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 4527856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 4528856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 4529856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 45301da177e4SLinus Torvalds * to be handled by a 45311da177e4SLinus Torvalds * middle-layer. 45321da177e4SLinus Torvalds */ 4533856dff3dSBenny Halevy { -1, -EIO } 45341da177e4SLinus Torvalds }; 45351da177e4SLinus Torvalds 45361da177e4SLinus Torvalds /* 45371da177e4SLinus Torvalds * Convert an NFS error code to a local one. 45381da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 45391da177e4SLinus Torvalds */ 45401da177e4SLinus Torvalds static int 45410a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 45421da177e4SLinus Torvalds { 45431da177e4SLinus Torvalds int i; 45441da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 45451da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 45461da177e4SLinus Torvalds return nfs_errtbl[i].errno; 45471da177e4SLinus Torvalds } 45481da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 45491da177e4SLinus Torvalds /* The server is looney tunes. */ 4550856dff3dSBenny Halevy return -ESERVERFAULT; 45511da177e4SLinus Torvalds } 45521da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 45531da177e4SLinus Torvalds * handle it. 45541da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 45551da177e4SLinus Torvalds * not conflict with native Linux error codes. 45561da177e4SLinus Torvalds */ 4557856dff3dSBenny Halevy return -stat; 45581da177e4SLinus Torvalds } 45591da177e4SLinus Torvalds 45601da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 45611da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 45621da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 45631da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 45641da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 45652bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 45662bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 4567cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 4568cc0175c1SChuck Lever .p_name = #proc, \ 45691da177e4SLinus Torvalds } 45701da177e4SLinus Torvalds 45711da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 45721da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 45731da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 45741da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 45751da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 45761da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 45771da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 45781da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 45791da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 45801da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 45811da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 45821da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 45831da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 45841da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 45851da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 45861da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 45871da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 45881da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 45891da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 45901da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 45911da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 45921da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 45931da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 45941da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 45951da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 45961da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 45971da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 45981da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 45991da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 46001da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 46011da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 46021da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4603029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 460423ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 4605683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 46061da177e4SLinus Torvalds }; 46071da177e4SLinus Torvalds 46081da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 46091da177e4SLinus Torvalds .number = 4, 4610e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 46111da177e4SLinus Torvalds .procs = nfs4_procedures 46121da177e4SLinus Torvalds }; 46131da177e4SLinus Torvalds 46141da177e4SLinus Torvalds /* 46151da177e4SLinus Torvalds * Local variables: 46161da177e4SLinus Torvalds * c-basic-offset: 8 46171da177e4SLinus Torvalds * End: 46181da177e4SLinus Torvalds */ 4619