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 525bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 526bca79478STrond Myklebust [NF4BAD] = 0, 527bca79478STrond Myklebust [NF4REG] = S_IFREG, 528bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 529bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 530bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 531bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 532bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 533bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 534bca79478STrond Myklebust [NF4ATTRDIR] = 0, 535bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 5361da177e4SLinus Torvalds }; 5371da177e4SLinus Torvalds 5381da177e4SLinus Torvalds struct compound_hdr { 5391da177e4SLinus Torvalds int32_t status; 5401da177e4SLinus Torvalds uint32_t nops; 541d017931cSAndy Adamson __be32 * nops_p; 5421da177e4SLinus Torvalds uint32_t taglen; 5431da177e4SLinus Torvalds char * tag; 5441da177e4SLinus Torvalds }; 5451da177e4SLinus Torvalds 5461da177e4SLinus Torvalds /* 5471da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 5481da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 5491da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 5501da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 5511da177e4SLinus Torvalds * 5521da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 5531da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 5541da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 5551da177e4SLinus Torvalds */ 5561da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 5571da177e4SLinus Torvalds #define WRITE64(n) do { \ 5581da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 5591da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 5601da177e4SLinus Torvalds } while (0) 5611da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 5621da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 5631da177e4SLinus Torvalds } while (0) 5641da177e4SLinus Torvalds 5651da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 5661da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 5671da177e4SLinus Torvalds BUG_ON(!p); \ 5681da177e4SLinus Torvalds } while (0) 5691da177e4SLinus Torvalds 5701da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 5711da177e4SLinus Torvalds { 5728687b63aSAl Viro __be32 *p; 5731da177e4SLinus Torvalds 5741da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 5751da177e4SLinus Torvalds BUG_ON(p == NULL); 5761da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 5771da177e4SLinus Torvalds } 5781da177e4SLinus Torvalds 579d017931cSAndy Adamson static void encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 5801da177e4SLinus Torvalds { 5818687b63aSAl Viro __be32 *p; 5821da177e4SLinus Torvalds 5831da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 5841da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 5851da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 5861da177e4SLinus Torvalds WRITE32(hdr->taglen); 5871da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 5881da177e4SLinus Torvalds WRITE32(NFS4_MINOR_VERSION); 589d017931cSAndy Adamson hdr->nops_p = p; 5901da177e4SLinus Torvalds WRITE32(hdr->nops); 591d017931cSAndy Adamson } 592d017931cSAndy Adamson 593d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 594d017931cSAndy Adamson { 595d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 5961da177e4SLinus Torvalds } 5971da177e4SLinus Torvalds 5981da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 5991da177e4SLinus Torvalds { 6008687b63aSAl Viro __be32 *p; 6011da177e4SLinus Torvalds 6021da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 6031da177e4SLinus Torvalds BUG_ON(p == NULL); 6041da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 6051da177e4SLinus Torvalds } 6061da177e4SLinus Torvalds 607cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 6081da177e4SLinus Torvalds { 6091da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 6101da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 6111da177e4SLinus Torvalds int owner_namelen = 0; 6121da177e4SLinus Torvalds int owner_grouplen = 0; 6138687b63aSAl Viro __be32 *p; 6148687b63aSAl Viro __be32 *q; 6151da177e4SLinus Torvalds int len; 6161da177e4SLinus Torvalds uint32_t bmval0 = 0; 6171da177e4SLinus Torvalds uint32_t bmval1 = 0; 6181da177e4SLinus Torvalds 6191da177e4SLinus Torvalds /* 6201da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 6211da177e4SLinus Torvalds * In the worst-case, this would be 6221da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 6231da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 62423ec6965SJ. Bruce Fields * such as owner/group. 6251da177e4SLinus Torvalds */ 6261da177e4SLinus Torvalds len = 16; 6271da177e4SLinus Torvalds 6281da177e4SLinus Torvalds /* Sigh */ 6291da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 6301da177e4SLinus Torvalds len += 8; 6311da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 6321da177e4SLinus Torvalds len += 4; 6331da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6347539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 6351da177e4SLinus Torvalds if (owner_namelen < 0) { 636fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 6371da177e4SLinus Torvalds iap->ia_uid); 6381da177e4SLinus Torvalds /* XXX */ 6391da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 6401da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 6411da177e4SLinus Torvalds /* goto out; */ 6421da177e4SLinus Torvalds } 6431da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 6441da177e4SLinus Torvalds } 6451da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 6467539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 6471da177e4SLinus Torvalds if (owner_grouplen < 0) { 648fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 6491da177e4SLinus Torvalds iap->ia_gid); 6501da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 6511da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 6521da177e4SLinus Torvalds /* goto out; */ 6531da177e4SLinus Torvalds } 6541da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 6551da177e4SLinus Torvalds } 6561da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 6571da177e4SLinus Torvalds len += 16; 6581da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 6591da177e4SLinus Torvalds len += 4; 6601da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 6611da177e4SLinus Torvalds len += 16; 6621da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 6631da177e4SLinus Torvalds len += 4; 6641da177e4SLinus Torvalds RESERVE_SPACE(len); 6651da177e4SLinus Torvalds 6661da177e4SLinus Torvalds /* 6671da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 6681da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 6691da177e4SLinus Torvalds */ 6701da177e4SLinus Torvalds WRITE32(2); 6711da177e4SLinus Torvalds q = p; 6721da177e4SLinus Torvalds p += 3; 6731da177e4SLinus Torvalds 6741da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 6751da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 6761da177e4SLinus Torvalds WRITE64(iap->ia_size); 6771da177e4SLinus Torvalds } 6781da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 6791da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 680cf3fff54STrond Myklebust WRITE32(iap->ia_mode & S_IALLUGO); 6811da177e4SLinus Torvalds } 6821da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6831da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 6841da177e4SLinus Torvalds WRITE32(owner_namelen); 6851da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 6861da177e4SLinus Torvalds } 6871da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 6881da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 6891da177e4SLinus Torvalds WRITE32(owner_grouplen); 6901da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 6911da177e4SLinus Torvalds } 6921da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 6931da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 6941da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 6951da177e4SLinus Torvalds WRITE32(0); 6961da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 6971da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 6981da177e4SLinus Torvalds } 6991da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 7001da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 7011da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 7021da177e4SLinus Torvalds } 7031da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 7041da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 7051da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 7061da177e4SLinus Torvalds WRITE32(0); 7071da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 7081da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 7091da177e4SLinus Torvalds } 7101da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 7111da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 7121da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 7131da177e4SLinus Torvalds } 7141da177e4SLinus Torvalds 7151da177e4SLinus Torvalds /* 7161da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 7171da177e4SLinus Torvalds */ 7181da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 719fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 7201da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 7211da177e4SLinus Torvalds BUG(); 7221da177e4SLinus Torvalds } 7231da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 7241da177e4SLinus Torvalds *q++ = htonl(bmval0); 7251da177e4SLinus Torvalds *q++ = htonl(bmval1); 7261da177e4SLinus Torvalds *q++ = htonl(len); 7271da177e4SLinus Torvalds 7281da177e4SLinus Torvalds /* out: */ 7291da177e4SLinus Torvalds } 7301da177e4SLinus Torvalds 731cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 7321da177e4SLinus Torvalds { 7338687b63aSAl Viro __be32 *p; 7341da177e4SLinus Torvalds 7351da177e4SLinus Torvalds RESERVE_SPACE(8); 7361da177e4SLinus Torvalds WRITE32(OP_ACCESS); 7371da177e4SLinus Torvalds WRITE32(access); 738d017931cSAndy Adamson hdr->nops++; 7391da177e4SLinus Torvalds } 7401da177e4SLinus Torvalds 741cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 7421da177e4SLinus Torvalds { 7438687b63aSAl Viro __be32 *p; 7441da177e4SLinus Torvalds 7458ae20abdSTrond Myklebust RESERVE_SPACE(8+NFS4_STATEID_SIZE); 7461da177e4SLinus Torvalds WRITE32(OP_CLOSE); 747cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 7488ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 749d017931cSAndy Adamson hdr->nops++; 7501da177e4SLinus Torvalds } 7511da177e4SLinus Torvalds 752cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 7531da177e4SLinus Torvalds { 7548687b63aSAl Viro __be32 *p; 7551da177e4SLinus Torvalds 7561da177e4SLinus Torvalds RESERVE_SPACE(16); 7571da177e4SLinus Torvalds WRITE32(OP_COMMIT); 7581da177e4SLinus Torvalds WRITE64(args->offset); 7591da177e4SLinus Torvalds WRITE32(args->count); 760d017931cSAndy Adamson hdr->nops++; 7611da177e4SLinus Torvalds } 7621da177e4SLinus Torvalds 763cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 7641da177e4SLinus Torvalds { 7658687b63aSAl Viro __be32 *p; 7661da177e4SLinus Torvalds 7671da177e4SLinus Torvalds RESERVE_SPACE(8); 7681da177e4SLinus Torvalds WRITE32(OP_CREATE); 7691da177e4SLinus Torvalds WRITE32(create->ftype); 7701da177e4SLinus Torvalds 7711da177e4SLinus Torvalds switch (create->ftype) { 7721da177e4SLinus Torvalds case NF4LNK: 77394a6d753SChuck Lever RESERVE_SPACE(4); 77494a6d753SChuck Lever WRITE32(create->u.symlink.len); 77594a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 7761da177e4SLinus Torvalds break; 7771da177e4SLinus Torvalds 7781da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 7791da177e4SLinus Torvalds RESERVE_SPACE(8); 7801da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 7811da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 7821da177e4SLinus Torvalds break; 7831da177e4SLinus Torvalds 7841da177e4SLinus Torvalds default: 7851da177e4SLinus Torvalds break; 7861da177e4SLinus Torvalds } 7871da177e4SLinus Torvalds 7881da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 7891da177e4SLinus Torvalds WRITE32(create->name->len); 7901da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 791d017931cSAndy Adamson hdr->nops++; 7921da177e4SLinus Torvalds 793cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 7941da177e4SLinus Torvalds } 7951da177e4SLinus Torvalds 796cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 7971da177e4SLinus Torvalds { 7988687b63aSAl Viro __be32 *p; 7991da177e4SLinus Torvalds 8001da177e4SLinus Torvalds RESERVE_SPACE(12); 8011da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8021da177e4SLinus Torvalds WRITE32(1); 8031da177e4SLinus Torvalds WRITE32(bitmap); 804d017931cSAndy Adamson hdr->nops++; 8051da177e4SLinus Torvalds } 8061da177e4SLinus Torvalds 807cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 8081da177e4SLinus Torvalds { 8098687b63aSAl Viro __be32 *p; 8101da177e4SLinus Torvalds 8111da177e4SLinus Torvalds RESERVE_SPACE(16); 8121da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8131da177e4SLinus Torvalds WRITE32(2); 8141da177e4SLinus Torvalds WRITE32(bm0); 8151da177e4SLinus Torvalds WRITE32(bm1); 816d017931cSAndy Adamson hdr->nops++; 8171da177e4SLinus Torvalds } 8181da177e4SLinus Torvalds 819cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 8201da177e4SLinus Torvalds { 821cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 822d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 8231da177e4SLinus Torvalds } 8241da177e4SLinus Torvalds 825cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 8261da177e4SLinus Torvalds { 827cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 828d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 8291da177e4SLinus Torvalds } 8301da177e4SLinus Torvalds 831cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 832830b8e33SManoj Naik { 833cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 834cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 835830b8e33SManoj Naik } 836830b8e33SManoj Naik 837cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 8381da177e4SLinus Torvalds { 8398687b63aSAl Viro __be32 *p; 8401da177e4SLinus Torvalds 8411da177e4SLinus Torvalds RESERVE_SPACE(4); 8421da177e4SLinus Torvalds WRITE32(OP_GETFH); 843d017931cSAndy Adamson hdr->nops++; 8441da177e4SLinus Torvalds } 8451da177e4SLinus Torvalds 846cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 8471da177e4SLinus Torvalds { 8488687b63aSAl Viro __be32 *p; 8491da177e4SLinus Torvalds 8501da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 8511da177e4SLinus Torvalds WRITE32(OP_LINK); 8521da177e4SLinus Torvalds WRITE32(name->len); 8531da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 854d017931cSAndy Adamson hdr->nops++; 8551da177e4SLinus Torvalds } 8561da177e4SLinus Torvalds 857911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 858911d1aafSTrond Myklebust { 859911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 860911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 861911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 862911d1aafSTrond Myklebust } 863911d1aafSTrond Myklebust 864911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 865911d1aafSTrond Myklebust { 866911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 867911d1aafSTrond Myklebust return ~(uint64_t)0; 868911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 869911d1aafSTrond Myklebust } 870911d1aafSTrond Myklebust 8711da177e4SLinus Torvalds /* 8721da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 8731da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 8741da177e4SLinus Torvalds */ 875cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 8761da177e4SLinus Torvalds { 8778687b63aSAl Viro __be32 *p; 8781da177e4SLinus Torvalds 8791da177e4SLinus Torvalds RESERVE_SPACE(32); 8801da177e4SLinus Torvalds WRITE32(OP_LOCK); 881911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, args->block)); 882911d1aafSTrond Myklebust WRITE32(args->reclaim); 883911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 884911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 885911d1aafSTrond Myklebust WRITE32(args->new_lock_owner); 886911d1aafSTrond Myklebust if (args->new_lock_owner){ 8879f958ab8STrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 888911d1aafSTrond Myklebust WRITE32(args->open_seqid->sequence->counter); 8898ae20abdSTrond Myklebust WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 890911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 891911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 8929f958ab8STrond Myklebust WRITE32(16); 8939f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 8949f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 8951da177e4SLinus Torvalds } 8961da177e4SLinus Torvalds else { 8978ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE+4); 8988ae20abdSTrond Myklebust WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 899911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 9001da177e4SLinus Torvalds } 901d017931cSAndy Adamson hdr->nops++; 9021da177e4SLinus Torvalds } 9031da177e4SLinus Torvalds 904cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 9051da177e4SLinus Torvalds { 9068687b63aSAl Viro __be32 *p; 9071da177e4SLinus Torvalds 9089f958ab8STrond Myklebust RESERVE_SPACE(52); 9091da177e4SLinus Torvalds WRITE32(OP_LOCKT); 910911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 911911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 912911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 913911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 9149f958ab8STrond Myklebust WRITE32(16); 9159f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 9169f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 917d017931cSAndy Adamson hdr->nops++; 9181da177e4SLinus Torvalds } 9191da177e4SLinus Torvalds 920cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 9211da177e4SLinus Torvalds { 9228687b63aSAl Viro __be32 *p; 9231da177e4SLinus Torvalds 9248ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 9251da177e4SLinus Torvalds WRITE32(OP_LOCKU); 926911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 927911d1aafSTrond Myklebust WRITE32(args->seqid->sequence->counter); 9288ae20abdSTrond Myklebust WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 929911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 930911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 931d017931cSAndy Adamson hdr->nops++; 9321da177e4SLinus Torvalds } 9331da177e4SLinus Torvalds 934cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 9351da177e4SLinus Torvalds { 9361da177e4SLinus Torvalds int len = name->len; 9378687b63aSAl Viro __be32 *p; 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 9401da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 9411da177e4SLinus Torvalds WRITE32(len); 9421da177e4SLinus Torvalds WRITEMEM(name->name, len); 943d017931cSAndy Adamson hdr->nops++; 9441da177e4SLinus Torvalds } 9451da177e4SLinus Torvalds 946dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 9471da177e4SLinus Torvalds { 9488687b63aSAl Viro __be32 *p; 9491da177e4SLinus Torvalds 9501da177e4SLinus Torvalds RESERVE_SPACE(8); 951dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 9521da177e4SLinus Torvalds case FMODE_READ: 9531da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 9541da177e4SLinus Torvalds break; 9551da177e4SLinus Torvalds case FMODE_WRITE: 9561da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 9571da177e4SLinus Torvalds break; 9581da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 9591da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 9601da177e4SLinus Torvalds break; 9611da177e4SLinus Torvalds default: 962dc0b027dSTrond Myklebust WRITE32(0); 9631da177e4SLinus Torvalds } 9641da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 9651da177e4SLinus Torvalds } 9661da177e4SLinus Torvalds 9671da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9681da177e4SLinus Torvalds { 9698687b63aSAl Viro __be32 *p; 9701da177e4SLinus Torvalds /* 9711da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 9721da177e4SLinus Torvalds * owner 4 = 32 9731da177e4SLinus Torvalds */ 9741da177e4SLinus Torvalds RESERVE_SPACE(8); 9751da177e4SLinus Torvalds WRITE32(OP_OPEN); 976cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 977dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 9789f958ab8STrond Myklebust RESERVE_SPACE(28); 9791da177e4SLinus Torvalds WRITE64(arg->clientid); 9809f958ab8STrond Myklebust WRITE32(16); 9819f958ab8STrond Myklebust WRITEMEM("open id:", 8); 9829f958ab8STrond Myklebust WRITE64(arg->id); 9831da177e4SLinus Torvalds } 9841da177e4SLinus Torvalds 9851da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9861da177e4SLinus Torvalds { 9878687b63aSAl Viro __be32 *p; 9881da177e4SLinus Torvalds 9891da177e4SLinus Torvalds RESERVE_SPACE(4); 9901da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 9911da177e4SLinus Torvalds case 0: 9921da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 9931da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 9941da177e4SLinus Torvalds break; 9951da177e4SLinus Torvalds default: 9961da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 9971da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 9981da177e4SLinus Torvalds } 9991da177e4SLinus Torvalds } 10001da177e4SLinus Torvalds 10011da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 10021da177e4SLinus Torvalds { 10038687b63aSAl Viro __be32 *p; 10041da177e4SLinus Torvalds 10051da177e4SLinus Torvalds RESERVE_SPACE(4); 10061da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 10071da177e4SLinus Torvalds case 0: 10081da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 10091da177e4SLinus Torvalds break; 10101da177e4SLinus Torvalds default: 10111da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 10121da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 10131da177e4SLinus Torvalds encode_createmode(xdr, arg); 10141da177e4SLinus Torvalds } 10151da177e4SLinus Torvalds } 10161da177e4SLinus Torvalds 1017bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 10181da177e4SLinus Torvalds { 10198687b63aSAl Viro __be32 *p; 10201da177e4SLinus Torvalds 10211da177e4SLinus Torvalds RESERVE_SPACE(4); 10221da177e4SLinus Torvalds switch (delegation_type) { 10231da177e4SLinus Torvalds case 0: 10241da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 10251da177e4SLinus Torvalds break; 10261da177e4SLinus Torvalds case FMODE_READ: 10271da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 10281da177e4SLinus Torvalds break; 10291da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 10301da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 10311da177e4SLinus Torvalds break; 10321da177e4SLinus Torvalds default: 10331da177e4SLinus Torvalds BUG(); 10341da177e4SLinus Torvalds } 10351da177e4SLinus Torvalds } 10361da177e4SLinus Torvalds 10371da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 10381da177e4SLinus Torvalds { 10398687b63aSAl Viro __be32 *p; 10401da177e4SLinus Torvalds 10411da177e4SLinus Torvalds RESERVE_SPACE(4); 10421da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 10431da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10441da177e4SLinus Torvalds } 10451da177e4SLinus Torvalds 1046bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 10471da177e4SLinus Torvalds { 10488687b63aSAl Viro __be32 *p; 10491da177e4SLinus Torvalds 10501da177e4SLinus Torvalds RESERVE_SPACE(4); 10511da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 10521da177e4SLinus Torvalds encode_delegation_type(xdr, type); 10531da177e4SLinus Torvalds } 10541da177e4SLinus Torvalds 10551da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 10561da177e4SLinus Torvalds { 10578687b63aSAl Viro __be32 *p; 10581da177e4SLinus Torvalds 10598ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 10601da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 10618ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 10621da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10631da177e4SLinus Torvalds } 10641da177e4SLinus Torvalds 1065cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 10661da177e4SLinus Torvalds { 10671da177e4SLinus Torvalds encode_openhdr(xdr, arg); 10681da177e4SLinus Torvalds encode_opentype(xdr, arg); 10691da177e4SLinus Torvalds switch (arg->claim) { 10701da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 10711da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 10721da177e4SLinus Torvalds break; 10731da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 10741da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 10751da177e4SLinus Torvalds break; 10761da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 10771da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 10781da177e4SLinus Torvalds break; 10791da177e4SLinus Torvalds default: 10801da177e4SLinus Torvalds BUG(); 10811da177e4SLinus Torvalds } 1082d017931cSAndy Adamson hdr->nops++; 10831da177e4SLinus Torvalds } 10841da177e4SLinus Torvalds 1085cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 10861da177e4SLinus Torvalds { 10878687b63aSAl Viro __be32 *p; 10881da177e4SLinus Torvalds 10898ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 10901da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 10918ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1092cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1093d017931cSAndy Adamson hdr->nops++; 10941da177e4SLinus Torvalds } 10951da177e4SLinus Torvalds 1096cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 10971da177e4SLinus Torvalds { 10988687b63aSAl Viro __be32 *p; 10991da177e4SLinus Torvalds 11008ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 11011da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 11028ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1103cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 1104dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1105d017931cSAndy Adamson hdr->nops++; 11061da177e4SLinus Torvalds } 11071da177e4SLinus Torvalds 1108cf8cdbe5SAndy Adamson static void 1109d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 11101da177e4SLinus Torvalds { 11111da177e4SLinus Torvalds int len = fh->size; 11128687b63aSAl Viro __be32 *p; 11131da177e4SLinus Torvalds 11141da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 11151da177e4SLinus Torvalds WRITE32(OP_PUTFH); 11161da177e4SLinus Torvalds WRITE32(len); 11171da177e4SLinus Torvalds WRITEMEM(fh->data, len); 1118d017931cSAndy Adamson hdr->nops++; 11191da177e4SLinus Torvalds } 11201da177e4SLinus Torvalds 1121cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 11221da177e4SLinus Torvalds { 11238687b63aSAl Viro __be32 *p; 11241da177e4SLinus Torvalds 11251da177e4SLinus Torvalds RESERVE_SPACE(4); 11261da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 1127d017931cSAndy Adamson hdr->nops++; 11281da177e4SLinus Torvalds } 11291da177e4SLinus Torvalds 11301da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 11311da177e4SLinus Torvalds { 11321da177e4SLinus Torvalds nfs4_stateid stateid; 11338687b63aSAl Viro __be32 *p; 11341da177e4SLinus Torvalds 11358ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE); 11361da177e4SLinus Torvalds if (ctx->state != NULL) { 11371da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 11388ae20abdSTrond Myklebust WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 11391da177e4SLinus Torvalds } else 11408ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 11411da177e4SLinus Torvalds } 11421da177e4SLinus Torvalds 1143cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 11441da177e4SLinus Torvalds { 11458687b63aSAl Viro __be32 *p; 11461da177e4SLinus Torvalds 11471da177e4SLinus Torvalds RESERVE_SPACE(4); 11481da177e4SLinus Torvalds WRITE32(OP_READ); 11491da177e4SLinus Torvalds 11501da177e4SLinus Torvalds encode_stateid(xdr, args->context); 11511da177e4SLinus Torvalds 11521da177e4SLinus Torvalds RESERVE_SPACE(12); 11531da177e4SLinus Torvalds WRITE64(args->offset); 11541da177e4SLinus Torvalds WRITE32(args->count); 1155d017931cSAndy Adamson hdr->nops++; 11561da177e4SLinus Torvalds } 11571da177e4SLinus Torvalds 1158cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 11591da177e4SLinus Torvalds { 116097d312d0SManoj Naik uint32_t attrs[2] = { 116197d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 116297d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 116397d312d0SManoj Naik }; 11648687b63aSAl Viro __be32 *p; 11651da177e4SLinus Torvalds 11668ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 11671da177e4SLinus Torvalds WRITE32(OP_READDIR); 11681da177e4SLinus Torvalds WRITE64(readdir->cookie); 11698ae20abdSTrond Myklebust WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 11701da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 11711da177e4SLinus Torvalds WRITE32(readdir->count); 11721da177e4SLinus Torvalds WRITE32(2); 117397d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 117497d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 117597d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 117697d312d0SManoj Naik else 117797d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 117897d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 117997d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1180d017931cSAndy Adamson hdr->nops++; 118144109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 118244109241SFred Isaman __func__, 1183eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1184eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1185eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1186eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1187eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 11881da177e4SLinus Torvalds } 11891da177e4SLinus Torvalds 1190cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 11911da177e4SLinus Torvalds { 11928687b63aSAl Viro __be32 *p; 11931da177e4SLinus Torvalds 11941da177e4SLinus Torvalds RESERVE_SPACE(4); 11951da177e4SLinus Torvalds WRITE32(OP_READLINK); 1196d017931cSAndy Adamson hdr->nops++; 11971da177e4SLinus Torvalds } 11981da177e4SLinus Torvalds 1199cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12001da177e4SLinus Torvalds { 12018687b63aSAl Viro __be32 *p; 12021da177e4SLinus Torvalds 12031da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 12041da177e4SLinus Torvalds WRITE32(OP_REMOVE); 12051da177e4SLinus Torvalds WRITE32(name->len); 12061da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 1207d017931cSAndy Adamson hdr->nops++; 12081da177e4SLinus Torvalds } 12091da177e4SLinus Torvalds 1210cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 12111da177e4SLinus Torvalds { 12128687b63aSAl Viro __be32 *p; 12131da177e4SLinus Torvalds 12141da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 12151da177e4SLinus Torvalds WRITE32(OP_RENAME); 12161da177e4SLinus Torvalds WRITE32(oldname->len); 12171da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 12181da177e4SLinus Torvalds 12191da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 12201da177e4SLinus Torvalds WRITE32(newname->len); 12211da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 1222d017931cSAndy Adamson hdr->nops++; 12231da177e4SLinus Torvalds } 12241da177e4SLinus Torvalds 1225cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 12261da177e4SLinus Torvalds { 12278687b63aSAl Viro __be32 *p; 12281da177e4SLinus Torvalds 12291da177e4SLinus Torvalds RESERVE_SPACE(12); 12301da177e4SLinus Torvalds WRITE32(OP_RENEW); 12311da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 1232d017931cSAndy Adamson hdr->nops++; 12331da177e4SLinus Torvalds } 12341da177e4SLinus Torvalds 1235cf8cdbe5SAndy Adamson static void 1236d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 123756ae19f3STrond Myklebust { 12388687b63aSAl Viro __be32 *p; 123956ae19f3STrond Myklebust 124056ae19f3STrond Myklebust RESERVE_SPACE(4); 124156ae19f3STrond Myklebust WRITE32(OP_RESTOREFH); 1242d017931cSAndy Adamson hdr->nops++; 124356ae19f3STrond Myklebust } 124456ae19f3STrond Myklebust 124556ae19f3STrond Myklebust static int 1246d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 124723ec6965SJ. Bruce Fields { 12488687b63aSAl Viro __be32 *p; 124923ec6965SJ. Bruce Fields 12508ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 125123ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 12528ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 125323ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 125423ec6965SJ. Bruce Fields WRITE32(1); 125523ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 125623ec6965SJ. Bruce Fields if (arg->acl_len % 4) 125723ec6965SJ. Bruce Fields return -EINVAL; 125823ec6965SJ. Bruce Fields RESERVE_SPACE(4); 125923ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 126023ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1261d017931cSAndy Adamson hdr->nops++; 126223ec6965SJ. Bruce Fields return 0; 126323ec6965SJ. Bruce Fields } 126423ec6965SJ. Bruce Fields 1265cf8cdbe5SAndy Adamson static void 1266d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 12671da177e4SLinus Torvalds { 12688687b63aSAl Viro __be32 *p; 12691da177e4SLinus Torvalds 12701da177e4SLinus Torvalds RESERVE_SPACE(4); 12711da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 1272d017931cSAndy Adamson hdr->nops++; 12731da177e4SLinus Torvalds } 12741da177e4SLinus Torvalds 1275cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 12761da177e4SLinus Torvalds { 12778687b63aSAl Viro __be32 *p; 12781da177e4SLinus Torvalds 12798ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 12801da177e4SLinus Torvalds WRITE32(OP_SETATTR); 12818ae20abdSTrond Myklebust WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 1282d017931cSAndy Adamson hdr->nops++; 1283cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 12841da177e4SLinus Torvalds } 12851da177e4SLinus Torvalds 1286cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 12871da177e4SLinus Torvalds { 12888687b63aSAl Viro __be32 *p; 12891da177e4SLinus Torvalds 12908ae20abdSTrond Myklebust RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 12911da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 12928ae20abdSTrond Myklebust WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 12931da177e4SLinus Torvalds 12941da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 12951da177e4SLinus Torvalds RESERVE_SPACE(4); 12961da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 12971da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 12981da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 12991da177e4SLinus Torvalds RESERVE_SPACE(4); 13001da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 1301d017931cSAndy Adamson hdr->nops++; 13021da177e4SLinus Torvalds } 13031da177e4SLinus Torvalds 1304cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 13051da177e4SLinus Torvalds { 13068687b63aSAl Viro __be32 *p; 13071da177e4SLinus Torvalds 13088ae20abdSTrond Myklebust RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 13091da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 13101da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 13118ae20abdSTrond Myklebust WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1312d017931cSAndy Adamson hdr->nops++; 13131da177e4SLinus Torvalds } 13141da177e4SLinus Torvalds 1315cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 13161da177e4SLinus Torvalds { 13178687b63aSAl Viro __be32 *p; 13181da177e4SLinus Torvalds 13191da177e4SLinus Torvalds RESERVE_SPACE(4); 13201da177e4SLinus Torvalds WRITE32(OP_WRITE); 13211da177e4SLinus Torvalds 13221da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13231da177e4SLinus Torvalds 13241da177e4SLinus Torvalds RESERVE_SPACE(16); 13251da177e4SLinus Torvalds WRITE64(args->offset); 13261da177e4SLinus Torvalds WRITE32(args->stable); 13271da177e4SLinus Torvalds WRITE32(args->count); 13281da177e4SLinus Torvalds 13291da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1330d017931cSAndy Adamson hdr->nops++; 13311da177e4SLinus Torvalds } 13321da177e4SLinus Torvalds 1333cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 13341da177e4SLinus Torvalds { 13358687b63aSAl Viro __be32 *p; 13361da177e4SLinus Torvalds 13378ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 13381da177e4SLinus Torvalds 13391da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 13408ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 1341d017931cSAndy Adamson hdr->nops++; 13421da177e4SLinus Torvalds } 13431da177e4SLinus Torvalds /* 13441da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 13451da177e4SLinus Torvalds */ 13461da177e4SLinus Torvalds 13471da177e4SLinus Torvalds /* 13481da177e4SLinus Torvalds * Encode an ACCESS request 13491da177e4SLinus Torvalds */ 13508687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 13511da177e4SLinus Torvalds { 13521da177e4SLinus Torvalds struct xdr_stream xdr; 13531da177e4SLinus Torvalds struct compound_hdr hdr = { 1354d017931cSAndy Adamson .nops = 0, 13551da177e4SLinus Torvalds }; 13561da177e4SLinus Torvalds 13571da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13581da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1359cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1360cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1361cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1362d017931cSAndy Adamson encode_nops(&hdr); 1363cf8cdbe5SAndy Adamson return 0; 13641da177e4SLinus Torvalds } 13651da177e4SLinus Torvalds 13661da177e4SLinus Torvalds /* 13671da177e4SLinus Torvalds * Encode LOOKUP request 13681da177e4SLinus Torvalds */ 13698687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 13701da177e4SLinus Torvalds { 13711da177e4SLinus Torvalds struct xdr_stream xdr; 13721da177e4SLinus Torvalds struct compound_hdr hdr = { 1373d017931cSAndy Adamson .nops = 0, 13741da177e4SLinus Torvalds }; 13751da177e4SLinus Torvalds 13761da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13771da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1378cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1379cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1380cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1381cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1382d017931cSAndy Adamson encode_nops(&hdr); 1383cf8cdbe5SAndy Adamson return 0; 13841da177e4SLinus Torvalds } 13851da177e4SLinus Torvalds 13861da177e4SLinus Torvalds /* 13871da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 13881da177e4SLinus Torvalds */ 13898687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 13901da177e4SLinus Torvalds { 13911da177e4SLinus Torvalds struct xdr_stream xdr; 13921da177e4SLinus Torvalds struct compound_hdr hdr = { 1393d017931cSAndy Adamson .nops = 0, 13941da177e4SLinus Torvalds }; 13951da177e4SLinus Torvalds 13961da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13971da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1398cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1399cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1400cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1401d017931cSAndy Adamson encode_nops(&hdr); 1402cf8cdbe5SAndy Adamson return 0; 14031da177e4SLinus Torvalds } 14041da177e4SLinus Torvalds 14051da177e4SLinus Torvalds /* 14061da177e4SLinus Torvalds * Encode REMOVE request 14071da177e4SLinus Torvalds */ 14084fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 14091da177e4SLinus Torvalds { 14101da177e4SLinus Torvalds struct xdr_stream xdr; 14111da177e4SLinus Torvalds struct compound_hdr hdr = { 1412d017931cSAndy Adamson .nops = 0, 14131da177e4SLinus Torvalds }; 14141da177e4SLinus Torvalds 14151da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14161da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1417cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1418cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1419cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1420d017931cSAndy Adamson encode_nops(&hdr); 1421cf8cdbe5SAndy Adamson return 0; 14221da177e4SLinus Torvalds } 14231da177e4SLinus Torvalds 14241da177e4SLinus Torvalds /* 14251da177e4SLinus Torvalds * Encode RENAME request 14261da177e4SLinus Torvalds */ 14278687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 14281da177e4SLinus Torvalds { 14291da177e4SLinus Torvalds struct xdr_stream xdr; 14301da177e4SLinus Torvalds struct compound_hdr hdr = { 1431d017931cSAndy Adamson .nops = 0, 14321da177e4SLinus Torvalds }; 14331da177e4SLinus Torvalds 14341da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14351da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1436cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1437cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1438cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1439cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1440cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1441cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1442cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1443d017931cSAndy Adamson encode_nops(&hdr); 1444cf8cdbe5SAndy Adamson return 0; 14451da177e4SLinus Torvalds } 14461da177e4SLinus Torvalds 14471da177e4SLinus Torvalds /* 14481da177e4SLinus Torvalds * Encode LINK request 14491da177e4SLinus Torvalds */ 14508687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 14511da177e4SLinus Torvalds { 14521da177e4SLinus Torvalds struct xdr_stream xdr; 14531da177e4SLinus Torvalds struct compound_hdr hdr = { 1454d017931cSAndy Adamson .nops = 0, 14551da177e4SLinus Torvalds }; 14561da177e4SLinus Torvalds 14571da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14581da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1459cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1460cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1461cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1462cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1463cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1464cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1465cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1466d017931cSAndy Adamson encode_nops(&hdr); 1467cf8cdbe5SAndy Adamson return 0; 14681da177e4SLinus Torvalds } 14691da177e4SLinus Torvalds 14701da177e4SLinus Torvalds /* 14711da177e4SLinus Torvalds * Encode CREATE request 14721da177e4SLinus Torvalds */ 14738687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 14741da177e4SLinus Torvalds { 14751da177e4SLinus Torvalds struct xdr_stream xdr; 14761da177e4SLinus Torvalds struct compound_hdr hdr = { 1477d017931cSAndy Adamson .nops = 0, 14781da177e4SLinus Torvalds }; 14791da177e4SLinus Torvalds 14801da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14811da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1482cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1483cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1484cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1485cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1486cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1487cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1488cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1489d017931cSAndy Adamson encode_nops(&hdr); 1490cf8cdbe5SAndy Adamson return 0; 14911da177e4SLinus Torvalds } 14921da177e4SLinus Torvalds 14931da177e4SLinus Torvalds /* 14941da177e4SLinus Torvalds * Encode SYMLINK request 14951da177e4SLinus Torvalds */ 14968687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 14971da177e4SLinus Torvalds { 14981da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 14991da177e4SLinus Torvalds } 15001da177e4SLinus Torvalds 15011da177e4SLinus Torvalds /* 15021da177e4SLinus Torvalds * Encode GETATTR request 15031da177e4SLinus Torvalds */ 15048687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 15051da177e4SLinus Torvalds { 15061da177e4SLinus Torvalds struct xdr_stream xdr; 15071da177e4SLinus Torvalds struct compound_hdr hdr = { 1508d017931cSAndy Adamson .nops = 0, 15091da177e4SLinus Torvalds }; 15101da177e4SLinus Torvalds 15111da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15121da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1513cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1514cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1515d017931cSAndy Adamson encode_nops(&hdr); 1516cf8cdbe5SAndy Adamson return 0; 15171da177e4SLinus Torvalds } 15181da177e4SLinus Torvalds 15191da177e4SLinus Torvalds /* 15201da177e4SLinus Torvalds * Encode a CLOSE request 15211da177e4SLinus Torvalds */ 15228687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 15231da177e4SLinus Torvalds { 15241da177e4SLinus Torvalds struct xdr_stream xdr; 15251da177e4SLinus Torvalds struct compound_hdr hdr = { 1526d017931cSAndy Adamson .nops = 0, 15271da177e4SLinus Torvalds }; 15281da177e4SLinus Torvalds 15291da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15301da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1531cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1532cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1533cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1534d017931cSAndy Adamson encode_nops(&hdr); 1535cf8cdbe5SAndy Adamson return 0; 15361da177e4SLinus Torvalds } 15371da177e4SLinus Torvalds 15381da177e4SLinus Torvalds /* 15391da177e4SLinus Torvalds * Encode an OPEN request 15401da177e4SLinus Torvalds */ 15418687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 15421da177e4SLinus Torvalds { 15431da177e4SLinus Torvalds struct xdr_stream xdr; 15441da177e4SLinus Torvalds struct compound_hdr hdr = { 1545d017931cSAndy Adamson .nops = 0, 15461da177e4SLinus Torvalds }; 15471da177e4SLinus Torvalds 15481da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15491da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1550cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1551cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1552cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1553cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1554cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1555cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1556cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1557d017931cSAndy Adamson encode_nops(&hdr); 1558cf8cdbe5SAndy Adamson return 0; 15591da177e4SLinus Torvalds } 15601da177e4SLinus Torvalds 15611da177e4SLinus Torvalds /* 15621da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 15631da177e4SLinus Torvalds */ 15648687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 15651da177e4SLinus Torvalds { 15661da177e4SLinus Torvalds struct xdr_stream xdr; 15671da177e4SLinus Torvalds struct compound_hdr hdr = { 1568d017931cSAndy Adamson .nops = 0, 15691da177e4SLinus Torvalds }; 15701da177e4SLinus Torvalds 15711da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15721da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1573cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1574cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1575d017931cSAndy Adamson encode_nops(&hdr); 1576cf8cdbe5SAndy Adamson return 0; 15771da177e4SLinus Torvalds } 15781da177e4SLinus Torvalds 15791da177e4SLinus Torvalds /* 15801da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 15811da177e4SLinus Torvalds */ 15828687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 15831da177e4SLinus Torvalds { 15841da177e4SLinus Torvalds struct xdr_stream xdr; 15851da177e4SLinus Torvalds struct compound_hdr hdr = { 1586d017931cSAndy Adamson .nops = 0, 15871da177e4SLinus Torvalds }; 15881da177e4SLinus Torvalds 15891da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15901da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1591cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1592cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1593cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1594d017931cSAndy Adamson encode_nops(&hdr); 1595cf8cdbe5SAndy Adamson return 0; 15961da177e4SLinus Torvalds } 15971da177e4SLinus Torvalds 15981da177e4SLinus Torvalds /* 15991da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 16001da177e4SLinus Torvalds */ 16018687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 16021da177e4SLinus Torvalds { 16031da177e4SLinus Torvalds struct xdr_stream xdr; 16041da177e4SLinus Torvalds struct compound_hdr hdr = { 1605d017931cSAndy Adamson .nops = 0, 16061da177e4SLinus Torvalds }; 16071da177e4SLinus Torvalds 16081da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16091da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1610cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1611cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1612cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1613d017931cSAndy Adamson encode_nops(&hdr); 1614cf8cdbe5SAndy Adamson return 0; 16151da177e4SLinus Torvalds } 16161da177e4SLinus Torvalds 16171da177e4SLinus Torvalds /* 16181da177e4SLinus Torvalds * Encode a LOCK request 16191da177e4SLinus Torvalds */ 16208687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 16211da177e4SLinus Torvalds { 16221da177e4SLinus Torvalds struct xdr_stream xdr; 16231da177e4SLinus Torvalds struct compound_hdr hdr = { 1624d017931cSAndy Adamson .nops = 0, 16251da177e4SLinus Torvalds }; 16261da177e4SLinus Torvalds 16271da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16281da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1629cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1630cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 1631d017931cSAndy Adamson encode_nops(&hdr); 1632cf8cdbe5SAndy Adamson return 0; 16331da177e4SLinus Torvalds } 16341da177e4SLinus Torvalds 16351da177e4SLinus Torvalds /* 16361da177e4SLinus Torvalds * Encode a LOCKT request 16371da177e4SLinus Torvalds */ 16388687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 16391da177e4SLinus Torvalds { 16401da177e4SLinus Torvalds struct xdr_stream xdr; 16411da177e4SLinus Torvalds struct compound_hdr hdr = { 1642d017931cSAndy Adamson .nops = 0, 16431da177e4SLinus Torvalds }; 16441da177e4SLinus Torvalds 16451da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16461da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1647cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1648cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 1649d017931cSAndy Adamson encode_nops(&hdr); 1650cf8cdbe5SAndy Adamson return 0; 16511da177e4SLinus Torvalds } 16521da177e4SLinus Torvalds 16531da177e4SLinus Torvalds /* 16541da177e4SLinus Torvalds * Encode a LOCKU request 16551da177e4SLinus Torvalds */ 16568687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 16571da177e4SLinus Torvalds { 16581da177e4SLinus Torvalds struct xdr_stream xdr; 16591da177e4SLinus Torvalds struct compound_hdr hdr = { 1660d017931cSAndy Adamson .nops = 0, 16611da177e4SLinus Torvalds }; 16621da177e4SLinus Torvalds 16631da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16641da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1665cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1666cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 1667d017931cSAndy Adamson encode_nops(&hdr); 1668cf8cdbe5SAndy Adamson return 0; 16691da177e4SLinus Torvalds } 16701da177e4SLinus Torvalds 16711da177e4SLinus Torvalds /* 16721da177e4SLinus Torvalds * Encode a READLINK request 16731da177e4SLinus Torvalds */ 16748687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 16751da177e4SLinus Torvalds { 16761da177e4SLinus Torvalds struct xdr_stream xdr; 16771da177e4SLinus Torvalds struct compound_hdr hdr = { 1678d017931cSAndy Adamson .nops = 0, 16791da177e4SLinus Torvalds }; 1680e3a535e1STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1681e3a535e1STrond Myklebust unsigned int replen; 16821da177e4SLinus Torvalds 16831da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16841da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1685cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1686cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 1687e3a535e1STrond Myklebust 1688e3a535e1STrond Myklebust /* set up reply kvec 1689e3a535e1STrond Myklebust * toplevel_status + taglen + rescount + OP_PUTFH + status 1690e3a535e1STrond Myklebust * + OP_READLINK + status + string length = 8 1691e3a535e1STrond Myklebust */ 1692e3a535e1STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2; 1693e3a535e1STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 1694e3a535e1STrond Myklebust args->pgbase, args->pglen); 1695d017931cSAndy Adamson encode_nops(&hdr); 1696cf8cdbe5SAndy Adamson return 0; 16971da177e4SLinus Torvalds } 16981da177e4SLinus Torvalds 16991da177e4SLinus Torvalds /* 17001da177e4SLinus Torvalds * Encode a READDIR request 17011da177e4SLinus Torvalds */ 17028687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 17031da177e4SLinus Torvalds { 17041da177e4SLinus Torvalds struct xdr_stream xdr; 17051da177e4SLinus Torvalds struct compound_hdr hdr = { 1706d017931cSAndy Adamson .nops = 0, 17071da177e4SLinus Torvalds }; 1708d6ac02dfSTrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1709d6ac02dfSTrond Myklebust int replen; 17101da177e4SLinus Torvalds 17111da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17121da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1713cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1714cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 1715d6ac02dfSTrond Myklebust 1716d6ac02dfSTrond Myklebust /* set up reply kvec 1717d6ac02dfSTrond Myklebust * toplevel_status + taglen + rescount + OP_PUTFH + status 1718d6ac02dfSTrond Myklebust * + OP_READDIR + status + verifer(2) = 9 1719d6ac02dfSTrond Myklebust */ 1720d6ac02dfSTrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2; 1721d6ac02dfSTrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 1722d6ac02dfSTrond Myklebust args->pgbase, args->count); 1723d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 17243110ff80SHarvey Harrison __func__, replen, args->pages, 1725d6ac02dfSTrond Myklebust args->pgbase, args->count); 1726d017931cSAndy Adamson encode_nops(&hdr); 1727cf8cdbe5SAndy Adamson return 0; 17281da177e4SLinus Torvalds } 17291da177e4SLinus Torvalds 17301da177e4SLinus Torvalds /* 17311da177e4SLinus Torvalds * Encode a READ request 17321da177e4SLinus Torvalds */ 17338687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 17341da177e4SLinus Torvalds { 17351be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 17361da177e4SLinus Torvalds struct xdr_stream xdr; 17371da177e4SLinus Torvalds struct compound_hdr hdr = { 1738d017931cSAndy Adamson .nops = 0, 17391da177e4SLinus Torvalds }; 1740cf8cdbe5SAndy Adamson int replen; 17411da177e4SLinus Torvalds 17421da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17431da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1744cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1745cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 17461da177e4SLinus Torvalds 17471da177e4SLinus Torvalds /* set up reply kvec 17481da177e4SLinus Torvalds * toplevel status + taglen=0 + rescount + OP_PUTFH + status 17491da177e4SLinus Torvalds * + OP_READ + status + eof + datalen = 9 17501da177e4SLinus Torvalds */ 17511da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; 17521da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, 17531da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 17544f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 1755d017931cSAndy Adamson encode_nops(&hdr); 1756cf8cdbe5SAndy Adamson return 0; 17571da177e4SLinus Torvalds } 17581da177e4SLinus Torvalds 17591da177e4SLinus Torvalds /* 17601da177e4SLinus Torvalds * Encode an SETATTR request 17611da177e4SLinus Torvalds */ 17628687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 17631da177e4SLinus Torvalds { 17641da177e4SLinus Torvalds struct xdr_stream xdr; 17651da177e4SLinus Torvalds struct compound_hdr hdr = { 1766d017931cSAndy Adamson .nops = 0, 17671da177e4SLinus Torvalds }; 17681da177e4SLinus Torvalds 17691da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17701da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1771cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1772cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 1773cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1774d017931cSAndy Adamson encode_nops(&hdr); 1775cf8cdbe5SAndy Adamson return 0; 17761da177e4SLinus Torvalds } 17771da177e4SLinus Torvalds 17781da177e4SLinus Torvalds /* 1779029d105eSJ. Bruce Fields * Encode a GETACL request 1780029d105eSJ. Bruce Fields */ 1781029d105eSJ. Bruce Fields static int 17828687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 1783029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 1784029d105eSJ. Bruce Fields { 1785029d105eSJ. Bruce Fields struct xdr_stream xdr; 17861be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1787029d105eSJ. Bruce Fields struct compound_hdr hdr = { 1788d017931cSAndy Adamson .nops = 0, 1789029d105eSJ. Bruce Fields }; 1790cf8cdbe5SAndy Adamson int replen; 1791029d105eSJ. Bruce Fields 1792029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1793029d105eSJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 1794cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1795cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 1796cf8cdbe5SAndy Adamson 1797029d105eSJ. Bruce Fields /* set up reply buffer: */ 1798029d105eSJ. Bruce Fields replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; 1799029d105eSJ. Bruce Fields xdr_inline_pages(&req->rq_rcv_buf, replen, 1800029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 1801d017931cSAndy Adamson encode_nops(&hdr); 1802cf8cdbe5SAndy Adamson return 0; 1803029d105eSJ. Bruce Fields } 1804029d105eSJ. Bruce Fields 1805029d105eSJ. Bruce Fields /* 18061da177e4SLinus Torvalds * Encode a WRITE request 18071da177e4SLinus Torvalds */ 18088687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 18091da177e4SLinus Torvalds { 18101da177e4SLinus Torvalds struct xdr_stream xdr; 18111da177e4SLinus Torvalds struct compound_hdr hdr = { 1812d017931cSAndy Adamson .nops = 0, 18131da177e4SLinus Torvalds }; 18141da177e4SLinus Torvalds 18151da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18161da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1817cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1818cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 18194f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 1820cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1821d017931cSAndy Adamson encode_nops(&hdr); 1822cf8cdbe5SAndy Adamson return 0; 18231da177e4SLinus Torvalds } 18241da177e4SLinus Torvalds 18251da177e4SLinus Torvalds /* 18261da177e4SLinus Torvalds * a COMMIT request 18271da177e4SLinus Torvalds */ 18288687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 18291da177e4SLinus Torvalds { 18301da177e4SLinus Torvalds struct xdr_stream xdr; 18311da177e4SLinus Torvalds struct compound_hdr hdr = { 1832d017931cSAndy Adamson .nops = 0, 18331da177e4SLinus Torvalds }; 18341da177e4SLinus Torvalds 18351da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18361da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1837cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1838cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 1839cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1840d017931cSAndy Adamson encode_nops(&hdr); 1841cf8cdbe5SAndy Adamson return 0; 18421da177e4SLinus Torvalds } 18431da177e4SLinus Torvalds 18441da177e4SLinus Torvalds /* 18451da177e4SLinus Torvalds * FSINFO request 18461da177e4SLinus Torvalds */ 18478687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 18481da177e4SLinus Torvalds { 18491da177e4SLinus Torvalds struct xdr_stream xdr; 18501da177e4SLinus Torvalds struct compound_hdr hdr = { 1851d017931cSAndy Adamson .nops = 0, 18521da177e4SLinus Torvalds }; 18531da177e4SLinus Torvalds 18541da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18551da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1856cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1857cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 1858d017931cSAndy Adamson encode_nops(&hdr); 1859cf8cdbe5SAndy Adamson return 0; 18601da177e4SLinus Torvalds } 18611da177e4SLinus Torvalds 18621da177e4SLinus Torvalds /* 18631da177e4SLinus Torvalds * a PATHCONF request 18641da177e4SLinus Torvalds */ 18658687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 18661da177e4SLinus Torvalds { 18671da177e4SLinus Torvalds struct xdr_stream xdr; 18681da177e4SLinus Torvalds struct compound_hdr hdr = { 1869d017931cSAndy Adamson .nops = 0, 18701da177e4SLinus Torvalds }; 18711da177e4SLinus Torvalds 18721da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18731da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1874cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1875cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 1876d017931cSAndy Adamson &hdr); 1877d017931cSAndy Adamson encode_nops(&hdr); 1878cf8cdbe5SAndy Adamson return 0; 18791da177e4SLinus Torvalds } 18801da177e4SLinus Torvalds 18811da177e4SLinus Torvalds /* 18821da177e4SLinus Torvalds * a STATFS request 18831da177e4SLinus Torvalds */ 18848687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 18851da177e4SLinus Torvalds { 18861da177e4SLinus Torvalds struct xdr_stream xdr; 18871da177e4SLinus Torvalds struct compound_hdr hdr = { 1888d017931cSAndy Adamson .nops = 0, 18891da177e4SLinus Torvalds }; 18901da177e4SLinus Torvalds 18911da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18921da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1893cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1894cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 1895d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 1896d017931cSAndy Adamson encode_nops(&hdr); 1897cf8cdbe5SAndy Adamson return 0; 18981da177e4SLinus Torvalds } 18991da177e4SLinus Torvalds 19001da177e4SLinus Torvalds /* 19011da177e4SLinus Torvalds * GETATTR_BITMAP request 19021da177e4SLinus Torvalds */ 190343652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 190443652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 19051da177e4SLinus Torvalds { 19061da177e4SLinus Torvalds struct xdr_stream xdr; 19071da177e4SLinus Torvalds struct compound_hdr hdr = { 1908d017931cSAndy Adamson .nops = 0, 19091da177e4SLinus Torvalds }; 19101da177e4SLinus Torvalds 19111da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19121da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 191343652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 1914cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 19151da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 19161da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 1917d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 1918d017931cSAndy Adamson encode_nops(&hdr); 1919cf8cdbe5SAndy Adamson return 0; 19201da177e4SLinus Torvalds } 19211da177e4SLinus Torvalds 19221da177e4SLinus Torvalds /* 19231da177e4SLinus Torvalds * a RENEW request 19241da177e4SLinus Torvalds */ 19258687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 19261da177e4SLinus Torvalds { 19271da177e4SLinus Torvalds struct xdr_stream xdr; 19281da177e4SLinus Torvalds struct compound_hdr hdr = { 1929d017931cSAndy Adamson .nops = 0, 19301da177e4SLinus Torvalds }; 19311da177e4SLinus Torvalds 19321da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19331da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1934cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 1935d017931cSAndy Adamson encode_nops(&hdr); 1936cf8cdbe5SAndy Adamson return 0; 19371da177e4SLinus Torvalds } 19381da177e4SLinus Torvalds 19391da177e4SLinus Torvalds /* 19401da177e4SLinus Torvalds * a SETCLIENTID request 19411da177e4SLinus Torvalds */ 19428687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 19431da177e4SLinus Torvalds { 19441da177e4SLinus Torvalds struct xdr_stream xdr; 19451da177e4SLinus Torvalds struct compound_hdr hdr = { 1946d017931cSAndy Adamson .nops = 0, 19471da177e4SLinus Torvalds }; 19481da177e4SLinus Torvalds 19491da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19501da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1951cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 1952d017931cSAndy Adamson encode_nops(&hdr); 1953cf8cdbe5SAndy Adamson return 0; 19541da177e4SLinus Torvalds } 19551da177e4SLinus Torvalds 19561da177e4SLinus Torvalds /* 19571da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 19581da177e4SLinus Torvalds */ 19598687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 19601da177e4SLinus Torvalds { 19611da177e4SLinus Torvalds struct xdr_stream xdr; 19621da177e4SLinus Torvalds struct compound_hdr hdr = { 1963d017931cSAndy Adamson .nops = 0, 19641da177e4SLinus Torvalds }; 19651da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 19661da177e4SLinus Torvalds 19671da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19681da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1969cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 1970cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1971cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 1972d017931cSAndy Adamson encode_nops(&hdr); 1973cf8cdbe5SAndy Adamson return 0; 19741da177e4SLinus Torvalds } 19751da177e4SLinus Torvalds 19761da177e4SLinus Torvalds /* 19771da177e4SLinus Torvalds * DELEGRETURN request 19781da177e4SLinus Torvalds */ 19798687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 19801da177e4SLinus Torvalds { 19811da177e4SLinus Torvalds struct xdr_stream xdr; 19821da177e4SLinus Torvalds struct compound_hdr hdr = { 1983d017931cSAndy Adamson .nops = 0, 19841da177e4SLinus Torvalds }; 19851da177e4SLinus Torvalds 19861da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19871da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 1988cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 1989cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 1990cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1991d017931cSAndy Adamson encode_nops(&hdr); 1992cf8cdbe5SAndy Adamson return 0; 19931da177e4SLinus Torvalds } 19941da177e4SLinus Torvalds 19951da177e4SLinus Torvalds /* 1996683b57b4STrond Myklebust * Encode FS_LOCATIONS request 1997683b57b4STrond Myklebust */ 19988687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 1999683b57b4STrond Myklebust { 2000683b57b4STrond Myklebust struct xdr_stream xdr; 2001683b57b4STrond Myklebust struct compound_hdr hdr = { 2002d017931cSAndy Adamson .nops = 0, 2003683b57b4STrond Myklebust }; 20041be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 2005683b57b4STrond Myklebust int replen; 2006683b57b4STrond Myklebust 2007683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2008683b57b4STrond Myklebust encode_compound_hdr(&xdr, &hdr); 2009cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2010cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 2011cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2012cf8cdbe5SAndy Adamson 2013683b57b4STrond Myklebust /* set up reply 2014830b8e33SManoj Naik * toplevel_status + OP_PUTFH + status 2015683b57b4STrond Myklebust * + OP_LOOKUP + status + OP_GETATTR + status = 7 2016683b57b4STrond Myklebust */ 2017683b57b4STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; 2018683b57b4STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, 2019683b57b4STrond Myklebust 0, PAGE_SIZE); 2020d017931cSAndy Adamson encode_nops(&hdr); 2021cf8cdbe5SAndy Adamson return 0; 2022683b57b4STrond Myklebust } 2023683b57b4STrond Myklebust 2024683b57b4STrond Myklebust /* 20251da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 20261da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 20271da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 20281da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 20291da177e4SLinus Torvalds * 20301da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 20311da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 20321da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 20331da177e4SLinus Torvalds */ 20341da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 20351da177e4SLinus Torvalds #define READ64(x) do { \ 20361da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 20371da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 20381da177e4SLinus Torvalds } while (0) 20391da177e4SLinus Torvalds #define READTIME(x) do { \ 20401da177e4SLinus Torvalds p++; \ 20411da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 20421da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 20431da177e4SLinus Torvalds } while (0) 20441da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 20451da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 20461da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 20471da177e4SLinus Torvalds } while (0) 20481da177e4SLinus Torvalds 20491da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 20501da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2051e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2052fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 20533110ff80SHarvey Harrison " buffer\n", __func__); \ 2054fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 20553110ff80SHarvey Harrison __func__, xdr->p, nbytes, xdr->end); \ 20561da177e4SLinus Torvalds return -EIO; \ 20571da177e4SLinus Torvalds } \ 20581da177e4SLinus Torvalds } while (0) 20591da177e4SLinus Torvalds 2060683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 20611da177e4SLinus Torvalds { 20628687b63aSAl Viro __be32 *p; 20631da177e4SLinus Torvalds 20641da177e4SLinus Torvalds READ_BUF(4); 20651da177e4SLinus Torvalds READ32(*len); 20661da177e4SLinus Torvalds READ_BUF(*len); 20671da177e4SLinus Torvalds *string = (char *)p; 20681da177e4SLinus Torvalds return 0; 20691da177e4SLinus Torvalds } 20701da177e4SLinus Torvalds 20711da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 20721da177e4SLinus Torvalds { 20738687b63aSAl Viro __be32 *p; 20741da177e4SLinus Torvalds 20751da177e4SLinus Torvalds READ_BUF(8); 20761da177e4SLinus Torvalds READ32(hdr->status); 20771da177e4SLinus Torvalds READ32(hdr->taglen); 20781da177e4SLinus Torvalds 20791da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 20801da177e4SLinus Torvalds hdr->tag = (char *)p; 20811da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 20821da177e4SLinus Torvalds READ32(hdr->nops); 2083aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2084aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 20851da177e4SLinus Torvalds return 0; 20861da177e4SLinus Torvalds } 20871da177e4SLinus Torvalds 20881da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 20891da177e4SLinus Torvalds { 20908687b63aSAl Viro __be32 *p; 20911da177e4SLinus Torvalds uint32_t opnum; 20921da177e4SLinus Torvalds int32_t nfserr; 20931da177e4SLinus Torvalds 20941da177e4SLinus Torvalds READ_BUF(8); 20951da177e4SLinus Torvalds READ32(opnum); 20961da177e4SLinus Torvalds if (opnum != expected) { 2097fe82a183SChuck Lever dprintk("nfs: Server returned operation" 20981da177e4SLinus Torvalds " %d but we issued a request for %d\n", 20991da177e4SLinus Torvalds opnum, expected); 21001da177e4SLinus Torvalds return -EIO; 21011da177e4SLinus Torvalds } 21021da177e4SLinus Torvalds READ32(nfserr); 21031da177e4SLinus Torvalds if (nfserr != NFS_OK) 2104856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 21051da177e4SLinus Torvalds return 0; 21061da177e4SLinus Torvalds } 21071da177e4SLinus Torvalds 21081da177e4SLinus Torvalds /* Dummy routine */ 2109adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 21101da177e4SLinus Torvalds { 21118687b63aSAl Viro __be32 *p; 2112683b57b4STrond Myklebust unsigned int strlen; 21131da177e4SLinus Torvalds char *str; 21141da177e4SLinus Torvalds 21151da177e4SLinus Torvalds READ_BUF(12); 21161da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 21171da177e4SLinus Torvalds } 21181da177e4SLinus Torvalds 21191da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 21201da177e4SLinus Torvalds { 21218687b63aSAl Viro uint32_t bmlen; 21228687b63aSAl Viro __be32 *p; 21231da177e4SLinus Torvalds 21241da177e4SLinus Torvalds READ_BUF(4); 21251da177e4SLinus Torvalds READ32(bmlen); 21261da177e4SLinus Torvalds 21271da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 21281da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 21291da177e4SLinus Torvalds if (bmlen > 0) { 21301da177e4SLinus Torvalds READ32(bitmap[0]); 21311da177e4SLinus Torvalds if (bmlen > 1) 21321da177e4SLinus Torvalds READ32(bitmap[1]); 21331da177e4SLinus Torvalds } 21341da177e4SLinus Torvalds return 0; 21351da177e4SLinus Torvalds } 21361da177e4SLinus Torvalds 21378687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 21381da177e4SLinus Torvalds { 21398687b63aSAl Viro __be32 *p; 21401da177e4SLinus Torvalds 21411da177e4SLinus Torvalds READ_BUF(4); 21421da177e4SLinus Torvalds READ32(*attrlen); 21431da177e4SLinus Torvalds *savep = xdr->p; 21441da177e4SLinus Torvalds return 0; 21451da177e4SLinus Torvalds } 21461da177e4SLinus Torvalds 21471da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 21481da177e4SLinus Torvalds { 21491da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 21501da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 21511da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 21521da177e4SLinus Torvalds } else 21531da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 215444109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 21551da177e4SLinus Torvalds return 0; 21561da177e4SLinus Torvalds } 21571da177e4SLinus Torvalds 21581da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 21591da177e4SLinus Torvalds { 21608687b63aSAl Viro __be32 *p; 2161409924e4STrond Myklebust int ret = 0; 21621da177e4SLinus Torvalds 21631da177e4SLinus Torvalds *type = 0; 21641da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 21651da177e4SLinus Torvalds return -EIO; 21661da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 21671da177e4SLinus Torvalds READ_BUF(4); 21681da177e4SLinus Torvalds READ32(*type); 21691da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 21703110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 21711da177e4SLinus Torvalds return -EIO; 21721da177e4SLinus Torvalds } 21731da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2174409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 21751da177e4SLinus Torvalds } 2176bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2177409924e4STrond Myklebust return ret; 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; 2183409924e4STrond Myklebust int ret = 0; 21841da177e4SLinus Torvalds 21851da177e4SLinus Torvalds *change = 0; 21861da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 21871da177e4SLinus Torvalds return -EIO; 21881da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 21891da177e4SLinus Torvalds READ_BUF(8); 21901da177e4SLinus Torvalds READ64(*change); 21911da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2192409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 21931da177e4SLinus Torvalds } 21943110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 21951da177e4SLinus Torvalds (unsigned long long)*change); 2196409924e4STrond Myklebust return ret; 21971da177e4SLinus Torvalds } 21981da177e4SLinus Torvalds 21991da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 22001da177e4SLinus Torvalds { 22018687b63aSAl Viro __be32 *p; 2202409924e4STrond Myklebust int ret = 0; 22031da177e4SLinus Torvalds 22041da177e4SLinus Torvalds *size = 0; 22051da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 22061da177e4SLinus Torvalds return -EIO; 22071da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 22081da177e4SLinus Torvalds READ_BUF(8); 22091da177e4SLinus Torvalds READ64(*size); 22101da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2211409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 22121da177e4SLinus Torvalds } 22133110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2214409924e4STrond Myklebust return ret; 22151da177e4SLinus Torvalds } 22161da177e4SLinus Torvalds 22171da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22181da177e4SLinus Torvalds { 22198687b63aSAl Viro __be32 *p; 22201da177e4SLinus Torvalds 22211da177e4SLinus Torvalds *res = 0; 22221da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 22231da177e4SLinus Torvalds return -EIO; 22241da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 22251da177e4SLinus Torvalds READ_BUF(4); 22261da177e4SLinus Torvalds READ32(*res); 22271da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 22281da177e4SLinus Torvalds } 22293110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 22301da177e4SLinus Torvalds return 0; 22311da177e4SLinus Torvalds } 22321da177e4SLinus Torvalds 22331da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22341da177e4SLinus Torvalds { 22358687b63aSAl Viro __be32 *p; 22361da177e4SLinus Torvalds 22371da177e4SLinus Torvalds *res = 0; 22381da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 22391da177e4SLinus Torvalds return -EIO; 22401da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 22411da177e4SLinus Torvalds READ_BUF(4); 22421da177e4SLinus Torvalds READ32(*res); 22431da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 22441da177e4SLinus Torvalds } 22453110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 22461da177e4SLinus Torvalds return 0; 22471da177e4SLinus Torvalds } 22481da177e4SLinus Torvalds 22498b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 22501da177e4SLinus Torvalds { 22518687b63aSAl Viro __be32 *p; 2252409924e4STrond Myklebust int ret = 0; 22531da177e4SLinus Torvalds 22541da177e4SLinus Torvalds fsid->major = 0; 22551da177e4SLinus Torvalds fsid->minor = 0; 22561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 22571da177e4SLinus Torvalds return -EIO; 22581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 22591da177e4SLinus Torvalds READ_BUF(16); 22601da177e4SLinus Torvalds READ64(fsid->major); 22611da177e4SLinus Torvalds READ64(fsid->minor); 22621da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2263409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 22641da177e4SLinus Torvalds } 22653110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 22661da177e4SLinus Torvalds (unsigned long long)fsid->major, 22671da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2268409924e4STrond Myklebust return ret; 22691da177e4SLinus Torvalds } 22701da177e4SLinus Torvalds 22711da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22721da177e4SLinus Torvalds { 22738687b63aSAl Viro __be32 *p; 22741da177e4SLinus Torvalds 22751da177e4SLinus Torvalds *res = 60; 22761da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 22771da177e4SLinus Torvalds return -EIO; 22781da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 22791da177e4SLinus Torvalds READ_BUF(4); 22801da177e4SLinus Torvalds READ32(*res); 22811da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 22821da177e4SLinus Torvalds } 22833110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 22841da177e4SLinus Torvalds return 0; 22851da177e4SLinus Torvalds } 22861da177e4SLinus Torvalds 22871da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 22881da177e4SLinus Torvalds { 22898687b63aSAl Viro __be32 *p; 22901da177e4SLinus Torvalds 22911da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 22921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 22931da177e4SLinus Torvalds return -EIO; 22941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 22951da177e4SLinus Torvalds READ_BUF(4); 22961da177e4SLinus Torvalds READ32(*res); 22971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 22981da177e4SLinus Torvalds } 22993110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 23001da177e4SLinus Torvalds return 0; 23011da177e4SLinus Torvalds } 23021da177e4SLinus Torvalds 23031da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 23041da177e4SLinus Torvalds { 23058687b63aSAl Viro __be32 *p; 2306409924e4STrond Myklebust int ret = 0; 23071da177e4SLinus Torvalds 23081da177e4SLinus Torvalds *fileid = 0; 23091da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 23101da177e4SLinus Torvalds return -EIO; 23111da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 23121da177e4SLinus Torvalds READ_BUF(8); 23131da177e4SLinus Torvalds READ64(*fileid); 23141da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2315409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 23161da177e4SLinus Torvalds } 23173110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2318409924e4STrond Myklebust return ret; 23191da177e4SLinus Torvalds } 23201da177e4SLinus Torvalds 232199baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 232299baf625SManoj Naik { 23238687b63aSAl Viro __be32 *p; 2324409924e4STrond Myklebust int ret = 0; 232599baf625SManoj Naik 232699baf625SManoj Naik *fileid = 0; 232799baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 232899baf625SManoj Naik return -EIO; 232999baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 233099baf625SManoj Naik READ_BUF(8); 233199baf625SManoj Naik READ64(*fileid); 233299baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2333409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 233499baf625SManoj Naik } 23353110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2336409924e4STrond Myklebust return ret; 233799baf625SManoj Naik } 233899baf625SManoj Naik 23391da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23401da177e4SLinus Torvalds { 23418687b63aSAl Viro __be32 *p; 23421da177e4SLinus Torvalds int status = 0; 23431da177e4SLinus Torvalds 23441da177e4SLinus Torvalds *res = 0; 23451da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 23461da177e4SLinus Torvalds return -EIO; 23471da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 23481da177e4SLinus Torvalds READ_BUF(8); 23491da177e4SLinus Torvalds READ64(*res); 23501da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 23511da177e4SLinus Torvalds } 23523110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 23531da177e4SLinus Torvalds return status; 23541da177e4SLinus Torvalds } 23551da177e4SLinus Torvalds 23561da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23571da177e4SLinus Torvalds { 23588687b63aSAl Viro __be32 *p; 23591da177e4SLinus Torvalds int status = 0; 23601da177e4SLinus Torvalds 23611da177e4SLinus Torvalds *res = 0; 23621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 23631da177e4SLinus Torvalds return -EIO; 23641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 23651da177e4SLinus Torvalds READ_BUF(8); 23661da177e4SLinus Torvalds READ64(*res); 23671da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 23681da177e4SLinus Torvalds } 23693110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 23701da177e4SLinus Torvalds return status; 23711da177e4SLinus Torvalds } 23721da177e4SLinus Torvalds 23731da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 23741da177e4SLinus Torvalds { 23758687b63aSAl Viro __be32 *p; 23761da177e4SLinus Torvalds int status = 0; 23771da177e4SLinus Torvalds 23781da177e4SLinus Torvalds *res = 0; 23791da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 23801da177e4SLinus Torvalds return -EIO; 23811da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 23821da177e4SLinus Torvalds READ_BUF(8); 23831da177e4SLinus Torvalds READ64(*res); 23841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 23851da177e4SLinus Torvalds } 23863110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 23871da177e4SLinus Torvalds return status; 23881da177e4SLinus Torvalds } 23891da177e4SLinus Torvalds 23907aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 23917aaa0b3bSManoj Naik { 2392464ad6b1SChuck Lever u32 n; 23938687b63aSAl Viro __be32 *p; 23947aaa0b3bSManoj Naik int status = 0; 23957aaa0b3bSManoj Naik 23967aaa0b3bSManoj Naik READ_BUF(4); 23977aaa0b3bSManoj Naik READ32(n); 239833a43f28SAndy Adamson if (n == 0) 239933a43f28SAndy Adamson goto root_path; 24007aaa0b3bSManoj Naik dprintk("path "); 24017aaa0b3bSManoj Naik path->ncomponents = 0; 24027aaa0b3bSManoj Naik while (path->ncomponents < n) { 24037aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 24047aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 24057aaa0b3bSManoj Naik if (unlikely(status != 0)) 24067aaa0b3bSManoj Naik goto out_eio; 24077aaa0b3bSManoj Naik if (path->ncomponents != n) 24087aaa0b3bSManoj Naik dprintk("/"); 24097aaa0b3bSManoj Naik dprintk("%s", component->data); 24107aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 24117aaa0b3bSManoj Naik path->ncomponents++; 24127aaa0b3bSManoj Naik else { 24137aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 24147aaa0b3bSManoj Naik goto out_eio; 24157aaa0b3bSManoj Naik } 24167aaa0b3bSManoj Naik } 24177aaa0b3bSManoj Naik out: 24187aaa0b3bSManoj Naik dprintk("\n"); 24197aaa0b3bSManoj Naik return status; 242033a43f28SAndy Adamson root_path: 242133a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 242233a43f28SAndy Adamson path->ncomponents = 1; 242333a43f28SAndy Adamson path->components[0].len=0; 242433a43f28SAndy Adamson path->components[0].data=NULL; 242533a43f28SAndy Adamson dprintk("path /\n"); 242633a43f28SAndy Adamson goto out; 24277aaa0b3bSManoj Naik out_eio: 24287aaa0b3bSManoj Naik dprintk(" status %d", status); 24297aaa0b3bSManoj Naik status = -EIO; 24307aaa0b3bSManoj Naik goto out; 24317aaa0b3bSManoj Naik } 24327aaa0b3bSManoj Naik 24337aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2434683b57b4STrond Myklebust { 2435683b57b4STrond Myklebust int n; 24368687b63aSAl Viro __be32 *p; 2437683b57b4STrond Myklebust int status = -EIO; 2438683b57b4STrond Myklebust 2439683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2440683b57b4STrond Myklebust goto out; 2441683b57b4STrond Myklebust status = 0; 2442683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2443683b57b4STrond Myklebust goto out; 24443110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 24457aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2446683b57b4STrond Myklebust if (unlikely(status != 0)) 2447683b57b4STrond Myklebust goto out; 2448683b57b4STrond Myklebust READ_BUF(4); 2449683b57b4STrond Myklebust READ32(n); 2450683b57b4STrond Myklebust if (n <= 0) 2451683b57b4STrond Myklebust goto out_eio; 2452683b57b4STrond Myklebust res->nlocations = 0; 2453683b57b4STrond Myklebust while (res->nlocations < n) { 2454464ad6b1SChuck Lever u32 m; 24557aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2456683b57b4STrond Myklebust 24577aaa0b3bSManoj Naik READ_BUF(4); 24587aaa0b3bSManoj Naik READ32(m); 24597aaa0b3bSManoj Naik 24607aaa0b3bSManoj Naik loc->nservers = 0; 24613110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 24627aaa0b3bSManoj Naik while (loc->nservers < m) { 24637aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 24647aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2465683b57b4STrond Myklebust if (unlikely(status != 0)) 2466683b57b4STrond Myklebust goto out_eio; 24677aaa0b3bSManoj Naik dprintk("%s ", server->data); 24687aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 24697aaa0b3bSManoj Naik loc->nservers++; 24707aaa0b3bSManoj Naik else { 2471464ad6b1SChuck Lever unsigned int i; 2472464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2473464ad6b1SChuck Lever "returned for location %u\n", 24743110ff80SHarvey Harrison __func__, 2475464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2476464ad6b1SChuck Lever m, res->nlocations); 24777aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 24782e42c3e2STrond Myklebust unsigned int len; 24797aaa0b3bSManoj Naik char *data; 24807aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2481683b57b4STrond Myklebust if (unlikely(status != 0)) 2482683b57b4STrond Myklebust goto out_eio; 24837aaa0b3bSManoj Naik } 24847aaa0b3bSManoj Naik } 24857aaa0b3bSManoj Naik } 24867aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 24877aaa0b3bSManoj Naik if (unlikely(status != 0)) 24887aaa0b3bSManoj Naik goto out_eio; 24897aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2490683b57b4STrond Myklebust res->nlocations++; 2491683b57b4STrond Myklebust } 2492409924e4STrond Myklebust if (res->nlocations != 0) 2493409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 2494683b57b4STrond Myklebust out: 24953110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 2496683b57b4STrond Myklebust return status; 2497683b57b4STrond Myklebust out_eio: 2498683b57b4STrond Myklebust status = -EIO; 2499683b57b4STrond Myklebust goto out; 2500683b57b4STrond Myklebust } 2501683b57b4STrond Myklebust 25021da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 25031da177e4SLinus Torvalds { 25048687b63aSAl Viro __be32 *p; 25051da177e4SLinus Torvalds int status = 0; 25061da177e4SLinus Torvalds 25071da177e4SLinus Torvalds *res = 0; 25081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 25091da177e4SLinus Torvalds return -EIO; 25101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 25111da177e4SLinus Torvalds READ_BUF(8); 25121da177e4SLinus Torvalds READ64(*res); 25131da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 25141da177e4SLinus Torvalds } 25153110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 25161da177e4SLinus Torvalds return status; 25171da177e4SLinus Torvalds } 25181da177e4SLinus Torvalds 25191da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 25201da177e4SLinus Torvalds { 25218687b63aSAl Viro __be32 *p; 25221da177e4SLinus Torvalds int status = 0; 25231da177e4SLinus Torvalds 25241da177e4SLinus Torvalds *maxlink = 1; 25251da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 25261da177e4SLinus Torvalds return -EIO; 25271da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 25281da177e4SLinus Torvalds READ_BUF(4); 25291da177e4SLinus Torvalds READ32(*maxlink); 25301da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 25311da177e4SLinus Torvalds } 25323110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 25331da177e4SLinus Torvalds return status; 25341da177e4SLinus Torvalds } 25351da177e4SLinus Torvalds 25361da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 25371da177e4SLinus Torvalds { 25388687b63aSAl Viro __be32 *p; 25391da177e4SLinus Torvalds int status = 0; 25401da177e4SLinus Torvalds 25411da177e4SLinus Torvalds *maxname = 1024; 25421da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 25431da177e4SLinus Torvalds return -EIO; 25441da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 25451da177e4SLinus Torvalds READ_BUF(4); 25461da177e4SLinus Torvalds READ32(*maxname); 25471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 25481da177e4SLinus Torvalds } 25493110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 25501da177e4SLinus Torvalds return status; 25511da177e4SLinus Torvalds } 25521da177e4SLinus Torvalds 25531da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 25541da177e4SLinus Torvalds { 25558687b63aSAl Viro __be32 *p; 25561da177e4SLinus Torvalds int status = 0; 25571da177e4SLinus Torvalds 25581da177e4SLinus Torvalds *res = 1024; 25591da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 25601da177e4SLinus Torvalds return -EIO; 25611da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 25621da177e4SLinus Torvalds uint64_t maxread; 25631da177e4SLinus Torvalds READ_BUF(8); 25641da177e4SLinus Torvalds READ64(maxread); 25651da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 25661da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 25671da177e4SLinus Torvalds *res = (uint32_t)maxread; 25681da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 25691da177e4SLinus Torvalds } 25703110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 25711da177e4SLinus Torvalds return status; 25721da177e4SLinus Torvalds } 25731da177e4SLinus Torvalds 25741da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 25751da177e4SLinus Torvalds { 25768687b63aSAl Viro __be32 *p; 25771da177e4SLinus Torvalds int status = 0; 25781da177e4SLinus Torvalds 25791da177e4SLinus Torvalds *res = 1024; 25801da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 25811da177e4SLinus Torvalds return -EIO; 25821da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 25831da177e4SLinus Torvalds uint64_t maxwrite; 25841da177e4SLinus Torvalds READ_BUF(8); 25851da177e4SLinus Torvalds READ64(maxwrite); 25861da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 25871da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 25881da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 25891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 25901da177e4SLinus Torvalds } 25913110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 25921da177e4SLinus Torvalds return status; 25931da177e4SLinus Torvalds } 25941da177e4SLinus Torvalds 2595bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 25961da177e4SLinus Torvalds { 2597bca79478STrond Myklebust uint32_t tmp; 25988687b63aSAl Viro __be32 *p; 2599409924e4STrond Myklebust int ret = 0; 26001da177e4SLinus Torvalds 26011da177e4SLinus Torvalds *mode = 0; 26021da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 26031da177e4SLinus Torvalds return -EIO; 26041da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 26051da177e4SLinus Torvalds READ_BUF(4); 2606bca79478STrond Myklebust READ32(tmp); 2607bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 26081da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 2609409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 26101da177e4SLinus Torvalds } 26113110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 2612409924e4STrond Myklebust return ret; 26131da177e4SLinus Torvalds } 26141da177e4SLinus Torvalds 26151da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 26161da177e4SLinus Torvalds { 26178687b63aSAl Viro __be32 *p; 2618409924e4STrond Myklebust int ret = 0; 26191da177e4SLinus Torvalds 26201da177e4SLinus Torvalds *nlink = 1; 26211da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 26221da177e4SLinus Torvalds return -EIO; 26231da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 26241da177e4SLinus Torvalds READ_BUF(4); 26251da177e4SLinus Torvalds READ32(*nlink); 26261da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 2627409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 26281da177e4SLinus Torvalds } 26293110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 2630409924e4STrond Myklebust return ret; 26311da177e4SLinus Torvalds } 26321da177e4SLinus Torvalds 26332e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 26341da177e4SLinus Torvalds { 26358687b63aSAl Viro uint32_t len; 26368687b63aSAl Viro __be32 *p; 2637409924e4STrond Myklebust int ret = 0; 26381da177e4SLinus Torvalds 26391da177e4SLinus Torvalds *uid = -2; 26401da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 26411da177e4SLinus Torvalds return -EIO; 26421da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 26431da177e4SLinus Torvalds READ_BUF(4); 26441da177e4SLinus Torvalds READ32(len); 26451da177e4SLinus Torvalds READ_BUF(len); 26461da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 2647409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 2648409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 2649409924e4STrond Myklebust else 26501da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 26513110ff80SHarvey Harrison __func__); 26521da177e4SLinus Torvalds } else 2653fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 26543110ff80SHarvey Harrison __func__, len); 26551da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 26561da177e4SLinus Torvalds } 26573110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 2658409924e4STrond Myklebust return ret; 26591da177e4SLinus Torvalds } 26601da177e4SLinus Torvalds 26612e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 26621da177e4SLinus Torvalds { 26638687b63aSAl Viro uint32_t len; 26648687b63aSAl Viro __be32 *p; 2665409924e4STrond Myklebust int ret = 0; 26661da177e4SLinus Torvalds 26671da177e4SLinus Torvalds *gid = -2; 26681da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 26691da177e4SLinus Torvalds return -EIO; 26701da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 26711da177e4SLinus Torvalds READ_BUF(4); 26721da177e4SLinus Torvalds READ32(len); 26731da177e4SLinus Torvalds READ_BUF(len); 26741da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 2675409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 2676409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 2677409924e4STrond Myklebust else 26781da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 26793110ff80SHarvey Harrison __func__); 26801da177e4SLinus Torvalds } else 2681fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 26823110ff80SHarvey Harrison __func__, len); 26831da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 26841da177e4SLinus Torvalds } 26853110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 2686409924e4STrond Myklebust return ret; 26871da177e4SLinus Torvalds } 26881da177e4SLinus Torvalds 26891da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 26901da177e4SLinus Torvalds { 26918687b63aSAl Viro uint32_t major = 0, minor = 0; 26928687b63aSAl Viro __be32 *p; 2693409924e4STrond Myklebust int ret = 0; 26941da177e4SLinus Torvalds 26951da177e4SLinus Torvalds *rdev = MKDEV(0,0); 26961da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 26971da177e4SLinus Torvalds return -EIO; 26981da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 26991da177e4SLinus Torvalds dev_t tmp; 27001da177e4SLinus Torvalds 27011da177e4SLinus Torvalds READ_BUF(8); 27021da177e4SLinus Torvalds READ32(major); 27031da177e4SLinus Torvalds READ32(minor); 27041da177e4SLinus Torvalds tmp = MKDEV(major, minor); 27051da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 27061da177e4SLinus Torvalds *rdev = tmp; 27071da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 2708409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 27091da177e4SLinus Torvalds } 27103110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 2711409924e4STrond Myklebust return ret; 27121da177e4SLinus Torvalds } 27131da177e4SLinus Torvalds 27141da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27151da177e4SLinus Torvalds { 27168687b63aSAl Viro __be32 *p; 27171da177e4SLinus Torvalds int status = 0; 27181da177e4SLinus Torvalds 27191da177e4SLinus Torvalds *res = 0; 27201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 27211da177e4SLinus Torvalds return -EIO; 27221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 27231da177e4SLinus Torvalds READ_BUF(8); 27241da177e4SLinus Torvalds READ64(*res); 27251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 27261da177e4SLinus Torvalds } 27273110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 27281da177e4SLinus Torvalds return status; 27291da177e4SLinus Torvalds } 27301da177e4SLinus Torvalds 27311da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27321da177e4SLinus Torvalds { 27338687b63aSAl Viro __be32 *p; 27341da177e4SLinus Torvalds int status = 0; 27351da177e4SLinus Torvalds 27361da177e4SLinus Torvalds *res = 0; 27371da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 27381da177e4SLinus Torvalds return -EIO; 27391da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 27401da177e4SLinus Torvalds READ_BUF(8); 27411da177e4SLinus Torvalds READ64(*res); 27421da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 27431da177e4SLinus Torvalds } 27443110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 27451da177e4SLinus Torvalds return status; 27461da177e4SLinus Torvalds } 27471da177e4SLinus Torvalds 27481da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 27491da177e4SLinus Torvalds { 27508687b63aSAl Viro __be32 *p; 27511da177e4SLinus Torvalds int status = 0; 27521da177e4SLinus Torvalds 27531da177e4SLinus Torvalds *res = 0; 27541da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 27551da177e4SLinus Torvalds return -EIO; 27561da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 27571da177e4SLinus Torvalds READ_BUF(8); 27581da177e4SLinus Torvalds READ64(*res); 27591da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 27601da177e4SLinus Torvalds } 27613110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 27621da177e4SLinus Torvalds return status; 27631da177e4SLinus Torvalds } 27641da177e4SLinus Torvalds 27651da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 27661da177e4SLinus Torvalds { 27678687b63aSAl Viro __be32 *p; 2768409924e4STrond Myklebust int ret = 0; 27691da177e4SLinus Torvalds 27701da177e4SLinus Torvalds *used = 0; 27711da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 27721da177e4SLinus Torvalds return -EIO; 27731da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 27741da177e4SLinus Torvalds READ_BUF(8); 27751da177e4SLinus Torvalds READ64(*used); 27761da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 2777409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 27781da177e4SLinus Torvalds } 27793110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 27801da177e4SLinus Torvalds (unsigned long long)*used); 2781409924e4STrond Myklebust return ret; 27821da177e4SLinus Torvalds } 27831da177e4SLinus Torvalds 27841da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 27851da177e4SLinus Torvalds { 27868687b63aSAl Viro __be32 *p; 27871da177e4SLinus Torvalds uint64_t sec; 27881da177e4SLinus Torvalds uint32_t nsec; 27891da177e4SLinus Torvalds 27901da177e4SLinus Torvalds READ_BUF(12); 27911da177e4SLinus Torvalds READ64(sec); 27921da177e4SLinus Torvalds READ32(nsec); 27931da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 27941da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 27951da177e4SLinus Torvalds return 0; 27961da177e4SLinus Torvalds } 27971da177e4SLinus Torvalds 27981da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 27991da177e4SLinus Torvalds { 28001da177e4SLinus Torvalds int status = 0; 28011da177e4SLinus Torvalds 28021da177e4SLinus Torvalds time->tv_sec = 0; 28031da177e4SLinus Torvalds time->tv_nsec = 0; 28041da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 28051da177e4SLinus Torvalds return -EIO; 28061da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 28071da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 2808409924e4STrond Myklebust if (status == 0) 2809409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 28101da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 28111da177e4SLinus Torvalds } 28123110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 28131da177e4SLinus Torvalds return status; 28141da177e4SLinus Torvalds } 28151da177e4SLinus Torvalds 28161da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 28171da177e4SLinus Torvalds { 28181da177e4SLinus Torvalds int status = 0; 28191da177e4SLinus Torvalds 28201da177e4SLinus Torvalds time->tv_sec = 0; 28211da177e4SLinus Torvalds time->tv_nsec = 0; 28221da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 28231da177e4SLinus Torvalds return -EIO; 28241da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 28251da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 2826409924e4STrond Myklebust if (status == 0) 2827409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 28281da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 28291da177e4SLinus Torvalds } 28303110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 28311da177e4SLinus Torvalds return status; 28321da177e4SLinus Torvalds } 28331da177e4SLinus Torvalds 28341da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 28351da177e4SLinus Torvalds { 28361da177e4SLinus Torvalds int status = 0; 28371da177e4SLinus Torvalds 28381da177e4SLinus Torvalds time->tv_sec = 0; 28391da177e4SLinus Torvalds time->tv_nsec = 0; 28401da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 28411da177e4SLinus Torvalds return -EIO; 28421da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 28431da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 2844409924e4STrond Myklebust if (status == 0) 2845409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 28461da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 28471da177e4SLinus Torvalds } 28483110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 28491da177e4SLinus Torvalds return status; 28501da177e4SLinus Torvalds } 28511da177e4SLinus Torvalds 28528687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 28531da177e4SLinus Torvalds { 28541da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 28551da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 28561da177e4SLinus Torvalds 28571da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 2858fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 2859fe82a183SChuck Lever "%u %c %u\n", 28603110ff80SHarvey Harrison __func__, 28611da177e4SLinus Torvalds attrwords << 2, 28621da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 28631da177e4SLinus Torvalds nwords << 2); 28641da177e4SLinus Torvalds return -EIO; 28651da177e4SLinus Torvalds } 28661da177e4SLinus Torvalds return 0; 28671da177e4SLinus Torvalds } 28681da177e4SLinus Torvalds 28691da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 28701da177e4SLinus Torvalds { 28718687b63aSAl Viro __be32 *p; 28721da177e4SLinus Torvalds 28731da177e4SLinus Torvalds READ_BUF(20); 28741da177e4SLinus Torvalds READ32(cinfo->atomic); 28751da177e4SLinus Torvalds READ64(cinfo->before); 28761da177e4SLinus Torvalds READ64(cinfo->after); 28771da177e4SLinus Torvalds return 0; 28781da177e4SLinus Torvalds } 28791da177e4SLinus Torvalds 28801da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 28811da177e4SLinus Torvalds { 28828687b63aSAl Viro __be32 *p; 28831da177e4SLinus Torvalds uint32_t supp, acc; 28841da177e4SLinus Torvalds int status; 28851da177e4SLinus Torvalds 28861da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 28871da177e4SLinus Torvalds if (status) 28881da177e4SLinus Torvalds return status; 28891da177e4SLinus Torvalds READ_BUF(8); 28901da177e4SLinus Torvalds READ32(supp); 28911da177e4SLinus Torvalds READ32(acc); 28921da177e4SLinus Torvalds access->supported = supp; 28931da177e4SLinus Torvalds access->access = acc; 28941da177e4SLinus Torvalds return 0; 28951da177e4SLinus Torvalds } 28961da177e4SLinus Torvalds 28971da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 28981da177e4SLinus Torvalds { 28998687b63aSAl Viro __be32 *p; 29001da177e4SLinus Torvalds int status; 29011da177e4SLinus Torvalds 29021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 2903c1d51931STrond Myklebust if (status != -EIO) 2904c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 29051da177e4SLinus Torvalds if (status) 29061da177e4SLinus Torvalds return status; 29078ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 29088ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 29091da177e4SLinus Torvalds return 0; 29101da177e4SLinus Torvalds } 29111da177e4SLinus Torvalds 29121da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 29131da177e4SLinus Torvalds { 29148687b63aSAl Viro __be32 *p; 29151da177e4SLinus Torvalds int status; 29161da177e4SLinus Torvalds 29171da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 29181da177e4SLinus Torvalds if (status) 29191da177e4SLinus Torvalds return status; 29201da177e4SLinus Torvalds READ_BUF(8); 29211da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 29221da177e4SLinus Torvalds return 0; 29231da177e4SLinus Torvalds } 29241da177e4SLinus Torvalds 29251da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 29261da177e4SLinus Torvalds { 29278687b63aSAl Viro __be32 *p; 29281da177e4SLinus Torvalds uint32_t bmlen; 29291da177e4SLinus Torvalds int status; 29301da177e4SLinus Torvalds 29311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 29321da177e4SLinus Torvalds if (status) 29331da177e4SLinus Torvalds return status; 29341da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 29351da177e4SLinus Torvalds return status; 29361da177e4SLinus Torvalds READ_BUF(4); 29371da177e4SLinus Torvalds READ32(bmlen); 29381da177e4SLinus Torvalds READ_BUF(bmlen << 2); 29391da177e4SLinus Torvalds return 0; 29401da177e4SLinus Torvalds } 29411da177e4SLinus Torvalds 29421da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 29431da177e4SLinus Torvalds { 29448687b63aSAl Viro __be32 *savep; 29456c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 29461da177e4SLinus Torvalds int status; 29471da177e4SLinus Torvalds 29481da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29491da177e4SLinus Torvalds goto xdr_error; 29501da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 29511da177e4SLinus Torvalds goto xdr_error; 29521da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 29531da177e4SLinus Torvalds goto xdr_error; 29541da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 29551da177e4SLinus Torvalds goto xdr_error; 29561da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 29571da177e4SLinus Torvalds goto xdr_error; 29581da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 29591da177e4SLinus Torvalds goto xdr_error; 29601da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 29611da177e4SLinus Torvalds goto xdr_error; 29621da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 29631da177e4SLinus Torvalds xdr_error: 29643110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 29651da177e4SLinus Torvalds return status; 29661da177e4SLinus Torvalds } 29671da177e4SLinus Torvalds 29681da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 29691da177e4SLinus Torvalds { 29708687b63aSAl Viro __be32 *savep; 29716c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 29721da177e4SLinus Torvalds int status; 29731da177e4SLinus Torvalds 29741da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 29751da177e4SLinus Torvalds goto xdr_error; 29761da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 29771da177e4SLinus Torvalds goto xdr_error; 29781da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 29791da177e4SLinus Torvalds goto xdr_error; 29801da177e4SLinus Torvalds 29811da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 29821da177e4SLinus Torvalds goto xdr_error; 29831da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 29841da177e4SLinus Torvalds goto xdr_error; 29851da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 29861da177e4SLinus Torvalds goto xdr_error; 29871da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 29881da177e4SLinus Torvalds goto xdr_error; 29891da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 29901da177e4SLinus Torvalds goto xdr_error; 29911da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 29921da177e4SLinus Torvalds goto xdr_error; 29931da177e4SLinus Torvalds 29941da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 29951da177e4SLinus Torvalds xdr_error: 29963110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 29971da177e4SLinus Torvalds return status; 29981da177e4SLinus Torvalds } 29991da177e4SLinus Torvalds 30001da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 30011da177e4SLinus Torvalds { 30028687b63aSAl Viro __be32 *savep; 30036c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 30041da177e4SLinus Torvalds int status; 30051da177e4SLinus Torvalds 30061da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30071da177e4SLinus Torvalds goto xdr_error; 30081da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30091da177e4SLinus Torvalds goto xdr_error; 30101da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30111da177e4SLinus Torvalds goto xdr_error; 30121da177e4SLinus Torvalds 30131da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 30141da177e4SLinus Torvalds goto xdr_error; 30151da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 30161da177e4SLinus Torvalds goto xdr_error; 30171da177e4SLinus Torvalds 30181da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30191da177e4SLinus Torvalds xdr_error: 30203110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 30211da177e4SLinus Torvalds return status; 30221da177e4SLinus Torvalds } 30231da177e4SLinus Torvalds 30241da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 30251da177e4SLinus Torvalds { 30268687b63aSAl Viro __be32 *savep; 30271da177e4SLinus Torvalds uint32_t attrlen, 30281da177e4SLinus Torvalds bitmap[2] = {0}, 30291da177e4SLinus Torvalds type; 3030bca79478STrond Myklebust int status; 3031bca79478STrond Myklebust umode_t fmode = 0; 303299baf625SManoj Naik uint64_t fileid; 30331da177e4SLinus Torvalds 3034f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3035f26c7a78STrond Myklebust if (status < 0) 30361da177e4SLinus Torvalds goto xdr_error; 30371da177e4SLinus Torvalds 3038f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3039f26c7a78STrond Myklebust if (status < 0) 3040f26c7a78STrond Myklebust goto xdr_error; 3041f26c7a78STrond Myklebust 3042f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3043f26c7a78STrond Myklebust if (status < 0) 30441da177e4SLinus Torvalds goto xdr_error; 30451da177e4SLinus Torvalds 30461da177e4SLinus Torvalds 3047f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3048f26c7a78STrond Myklebust if (status < 0) 30491da177e4SLinus Torvalds goto xdr_error; 3050409924e4STrond Myklebust fattr->mode = 0; 3051409924e4STrond Myklebust if (status != 0) { 3052409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3053409924e4STrond Myklebust fattr->valid |= status; 3054409924e4STrond Myklebust } 30551da177e4SLinus Torvalds 3056f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3057f26c7a78STrond Myklebust if (status < 0) 30581da177e4SLinus Torvalds goto xdr_error; 3059409924e4STrond Myklebust fattr->valid |= status; 3060f26c7a78STrond Myklebust 3061f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3062f26c7a78STrond Myklebust if (status < 0) 30631da177e4SLinus Torvalds goto xdr_error; 3064409924e4STrond Myklebust fattr->valid |= status; 3065f26c7a78STrond Myklebust 3066f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3067f26c7a78STrond Myklebust if (status < 0) 30681da177e4SLinus Torvalds goto xdr_error; 3069409924e4STrond Myklebust fattr->valid |= status; 3070f26c7a78STrond Myklebust 3071f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3072f26c7a78STrond Myklebust if (status < 0) 30731da177e4SLinus Torvalds goto xdr_error; 3074409924e4STrond Myklebust fattr->valid |= status; 3075f26c7a78STrond Myklebust 3076f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 30777aaa0b3bSManoj Naik struct nfs4_fs_locations, 3078f26c7a78STrond Myklebust fattr)); 3079f26c7a78STrond Myklebust if (status < 0) 3080683b57b4STrond Myklebust goto xdr_error; 3081409924e4STrond Myklebust fattr->valid |= status; 3082f26c7a78STrond Myklebust 3083f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3084f26c7a78STrond Myklebust if (status < 0) 30851da177e4SLinus Torvalds goto xdr_error; 3086409924e4STrond Myklebust if (status != 0) { 30871da177e4SLinus Torvalds fattr->mode |= fmode; 3088409924e4STrond Myklebust fattr->valid |= status; 3089409924e4STrond Myklebust } 3090f26c7a78STrond Myklebust 3091f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3092f26c7a78STrond Myklebust if (status < 0) 30931da177e4SLinus Torvalds goto xdr_error; 3094409924e4STrond Myklebust fattr->valid |= status; 3095f26c7a78STrond Myklebust 3096f26c7a78STrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid); 3097f26c7a78STrond Myklebust if (status < 0) 30981da177e4SLinus Torvalds goto xdr_error; 3099409924e4STrond Myklebust fattr->valid |= status; 3100f26c7a78STrond Myklebust 3101f26c7a78STrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid); 3102f26c7a78STrond Myklebust if (status < 0) 31031da177e4SLinus Torvalds goto xdr_error; 3104409924e4STrond Myklebust fattr->valid |= status; 3105f26c7a78STrond Myklebust 3106f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3107f26c7a78STrond Myklebust if (status < 0) 31081da177e4SLinus Torvalds goto xdr_error; 3109409924e4STrond Myklebust fattr->valid |= status; 3110f26c7a78STrond Myklebust 3111f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3112f26c7a78STrond Myklebust if (status < 0) 31131da177e4SLinus Torvalds goto xdr_error; 3114409924e4STrond Myklebust fattr->valid |= status; 3115f26c7a78STrond Myklebust 3116f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3117f26c7a78STrond Myklebust if (status < 0) 31181da177e4SLinus Torvalds goto xdr_error; 3119409924e4STrond Myklebust fattr->valid |= status; 3120f26c7a78STrond Myklebust 3121f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3122f26c7a78STrond Myklebust if (status < 0) 31231da177e4SLinus Torvalds goto xdr_error; 3124409924e4STrond Myklebust fattr->valid |= status; 3125f26c7a78STrond Myklebust 3126f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3127f26c7a78STrond Myklebust if (status < 0) 31281da177e4SLinus Torvalds goto xdr_error; 3129409924e4STrond Myklebust fattr->valid |= status; 3130f26c7a78STrond Myklebust 3131f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3132f26c7a78STrond Myklebust if (status < 0) 313399baf625SManoj Naik goto xdr_error; 3134409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 313599baf625SManoj Naik fattr->fileid = fileid; 3136409924e4STrond Myklebust fattr->valid |= status; 3137409924e4STrond Myklebust } 3138f26c7a78STrond Myklebust 3139f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 31401da177e4SLinus Torvalds xdr_error: 31413110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 31421da177e4SLinus Torvalds return status; 31431da177e4SLinus Torvalds } 31441da177e4SLinus Torvalds 31451da177e4SLinus Torvalds 31461da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 31471da177e4SLinus Torvalds { 31488687b63aSAl Viro __be32 *savep; 31491da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 31501da177e4SLinus Torvalds int status; 31511da177e4SLinus Torvalds 31521da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31531da177e4SLinus Torvalds goto xdr_error; 31541da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31551da177e4SLinus Torvalds goto xdr_error; 31561da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 31571da177e4SLinus Torvalds goto xdr_error; 31581da177e4SLinus Torvalds 31591da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 31601da177e4SLinus Torvalds 31611da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 31621da177e4SLinus Torvalds goto xdr_error; 31631da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 31641da177e4SLinus Torvalds goto xdr_error; 31651da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 31661da177e4SLinus Torvalds goto xdr_error; 31671da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 31681da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 31691da177e4SLinus Torvalds goto xdr_error; 31701da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 31711da177e4SLinus Torvalds 31721da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 31731da177e4SLinus Torvalds xdr_error: 31743110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 31751da177e4SLinus Torvalds return status; 31761da177e4SLinus Torvalds } 31771da177e4SLinus Torvalds 31781da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 31791da177e4SLinus Torvalds { 31808687b63aSAl Viro __be32 *p; 31811da177e4SLinus Torvalds uint32_t len; 31821da177e4SLinus Torvalds int status; 31831da177e4SLinus Torvalds 31849936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 31859936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 31869936781dSTrond Myklebust 31871da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 31881da177e4SLinus Torvalds if (status) 31891da177e4SLinus Torvalds return status; 31901da177e4SLinus Torvalds 31911da177e4SLinus Torvalds READ_BUF(4); 31921da177e4SLinus Torvalds READ32(len); 31931da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 31941da177e4SLinus Torvalds return -EIO; 31951da177e4SLinus Torvalds fh->size = len; 31961da177e4SLinus Torvalds READ_BUF(len); 31971da177e4SLinus Torvalds COPYMEM(fh->data, len); 31981da177e4SLinus Torvalds return 0; 31991da177e4SLinus Torvalds } 32001da177e4SLinus Torvalds 32011da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 32021da177e4SLinus Torvalds { 32031da177e4SLinus Torvalds int status; 32041da177e4SLinus Torvalds 32051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 32061da177e4SLinus Torvalds if (status) 32071da177e4SLinus Torvalds return status; 32081da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 32091da177e4SLinus Torvalds } 32101da177e4SLinus Torvalds 32111da177e4SLinus Torvalds /* 32121da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 32131da177e4SLinus Torvalds */ 3214911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 32151da177e4SLinus Torvalds { 3216911d1aafSTrond Myklebust uint64_t offset, length, clientid; 32178687b63aSAl Viro __be32 *p; 3218911d1aafSTrond Myklebust uint32_t namelen, type; 32191da177e4SLinus Torvalds 32201da177e4SLinus Torvalds READ_BUF(32); 3221911d1aafSTrond Myklebust READ64(offset); 3222911d1aafSTrond Myklebust READ64(length); 3223911d1aafSTrond Myklebust READ32(type); 3224911d1aafSTrond Myklebust if (fl != NULL) { 3225911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3226911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3227911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3228911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3229911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3230911d1aafSTrond Myklebust if (type & 1) 3231911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3232911d1aafSTrond Myklebust fl->fl_pid = 0; 3233911d1aafSTrond Myklebust } 3234911d1aafSTrond Myklebust READ64(clientid); 32351da177e4SLinus Torvalds READ32(namelen); 32361da177e4SLinus Torvalds READ_BUF(namelen); 32371da177e4SLinus Torvalds return -NFS4ERR_DENIED; 32381da177e4SLinus Torvalds } 32391da177e4SLinus Torvalds 3240911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 32411da177e4SLinus Torvalds { 32428687b63aSAl Viro __be32 *p; 32431da177e4SLinus Torvalds int status; 32441da177e4SLinus Torvalds 32451da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3246c1d51931STrond Myklebust if (status == -EIO) 3247c1d51931STrond Myklebust goto out; 32481da177e4SLinus Torvalds if (status == 0) { 32498ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 32508ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 32511da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3252c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3253c1d51931STrond Myklebust if (res->open_seqid != NULL) 3254c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3255c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3256c1d51931STrond Myklebust out: 32571da177e4SLinus Torvalds return status; 32581da177e4SLinus Torvalds } 32591da177e4SLinus Torvalds 3260911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 32611da177e4SLinus Torvalds { 32621da177e4SLinus Torvalds int status; 32631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 32641da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3265911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 32661da177e4SLinus Torvalds return status; 32671da177e4SLinus Torvalds } 32681da177e4SLinus Torvalds 3269911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 32701da177e4SLinus Torvalds { 32718687b63aSAl Viro __be32 *p; 32721da177e4SLinus Torvalds int status; 32731da177e4SLinus Torvalds 32741da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3275c1d51931STrond Myklebust if (status != -EIO) 3276c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 32771da177e4SLinus Torvalds if (status == 0) { 32788ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 32798ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 32801da177e4SLinus Torvalds } 32811da177e4SLinus Torvalds return status; 32821da177e4SLinus Torvalds } 32831da177e4SLinus Torvalds 32841da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 32851da177e4SLinus Torvalds { 32861da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 32871da177e4SLinus Torvalds } 32881da177e4SLinus Torvalds 32891da177e4SLinus Torvalds /* This is too sick! */ 32901da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 32911da177e4SLinus Torvalds { 32928687b63aSAl Viro __be32 *p; 32931da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 32941da177e4SLinus Torvalds 32951da177e4SLinus Torvalds READ_BUF(12); 32961da177e4SLinus Torvalds READ32(limit_type); 32971da177e4SLinus Torvalds switch (limit_type) { 32981da177e4SLinus Torvalds case 1: 32991da177e4SLinus Torvalds READ64(*maxsize); 33001da177e4SLinus Torvalds break; 33011da177e4SLinus Torvalds case 2: 33021da177e4SLinus Torvalds READ32(nblocks); 33031da177e4SLinus Torvalds READ32(blocksize); 33041da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 33051da177e4SLinus Torvalds } 33061da177e4SLinus Torvalds return 0; 33071da177e4SLinus Torvalds } 33081da177e4SLinus Torvalds 33091da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 33101da177e4SLinus Torvalds { 33118687b63aSAl Viro __be32 *p; 33121da177e4SLinus Torvalds uint32_t delegation_type; 33131da177e4SLinus Torvalds 33141da177e4SLinus Torvalds READ_BUF(4); 33151da177e4SLinus Torvalds READ32(delegation_type); 33161da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 33171da177e4SLinus Torvalds res->delegation_type = 0; 33181da177e4SLinus Torvalds return 0; 33191da177e4SLinus Torvalds } 33208ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 33218ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 33221da177e4SLinus Torvalds READ32(res->do_recall); 332305d564feSAndy Adamson 33241da177e4SLinus Torvalds switch (delegation_type) { 33251da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 33261da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 33271da177e4SLinus Torvalds break; 33281da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 33291da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 33301da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 33311da177e4SLinus Torvalds return -EIO; 33321da177e4SLinus Torvalds } 33337539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 33341da177e4SLinus Torvalds } 33351da177e4SLinus Torvalds 33361da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 33371da177e4SLinus Torvalds { 33388687b63aSAl Viro __be32 *p; 3339aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 33401da177e4SLinus Torvalds int status; 33411da177e4SLinus Torvalds 33421da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 3343c1d51931STrond Myklebust if (status != -EIO) 3344c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33451da177e4SLinus Torvalds if (status) 33461da177e4SLinus Torvalds return status; 33478ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33488ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33491da177e4SLinus Torvalds 33501da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 33511da177e4SLinus Torvalds 33521da177e4SLinus Torvalds READ_BUF(8); 33531da177e4SLinus Torvalds READ32(res->rflags); 33541da177e4SLinus Torvalds READ32(bmlen); 33551da177e4SLinus Torvalds if (bmlen > 10) 33561da177e4SLinus Torvalds goto xdr_error; 33571da177e4SLinus Torvalds 33581da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3359aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3360aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3361aa53ed54SJeff Layton READ32(res->attrset[i]); 3362aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3363aa53ed54SJeff Layton res->attrset[i] = 0; 3364aa53ed54SJeff Layton 33651da177e4SLinus Torvalds return decode_delegation(xdr, res); 33661da177e4SLinus Torvalds xdr_error: 33673110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 33681da177e4SLinus Torvalds return -EIO; 33691da177e4SLinus Torvalds } 33701da177e4SLinus Torvalds 33711da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 33721da177e4SLinus Torvalds { 33738687b63aSAl Viro __be32 *p; 33741da177e4SLinus Torvalds int status; 33751da177e4SLinus Torvalds 33761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 3377c1d51931STrond Myklebust if (status != -EIO) 3378c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33791da177e4SLinus Torvalds if (status) 33801da177e4SLinus Torvalds return status; 33818ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33828ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33831da177e4SLinus Torvalds return 0; 33841da177e4SLinus Torvalds } 33851da177e4SLinus Torvalds 33861da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 33871da177e4SLinus Torvalds { 33888687b63aSAl Viro __be32 *p; 33891da177e4SLinus Torvalds int status; 33901da177e4SLinus Torvalds 33911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 3392c1d51931STrond Myklebust if (status != -EIO) 3393c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 33941da177e4SLinus Torvalds if (status) 33951da177e4SLinus Torvalds return status; 33968ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33978ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33981da177e4SLinus Torvalds return 0; 33991da177e4SLinus Torvalds } 34001da177e4SLinus Torvalds 34011da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 34021da177e4SLinus Torvalds { 34031da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 34041da177e4SLinus Torvalds } 34051da177e4SLinus Torvalds 34061da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 34071da177e4SLinus Torvalds { 34081da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 34091da177e4SLinus Torvalds } 34101da177e4SLinus Torvalds 34111da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 34121da177e4SLinus Torvalds { 34131da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 34148687b63aSAl Viro __be32 *p; 34151da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 34161da177e4SLinus Torvalds int status; 34171da177e4SLinus Torvalds 34181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 34191da177e4SLinus Torvalds if (status) 34201da177e4SLinus Torvalds return status; 34211da177e4SLinus Torvalds READ_BUF(8); 34221da177e4SLinus Torvalds READ32(eof); 34231da177e4SLinus Torvalds READ32(count); 34241da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 34251da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 34261da177e4SLinus Torvalds if (count > recvd) { 3427fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 34281da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 34291da177e4SLinus Torvalds count = recvd; 34301da177e4SLinus Torvalds eof = 0; 34311da177e4SLinus Torvalds } 34321da177e4SLinus Torvalds xdr_read_pages(xdr, count); 34331da177e4SLinus Torvalds res->eof = eof; 34341da177e4SLinus Torvalds res->count = count; 34351da177e4SLinus Torvalds return 0; 34361da177e4SLinus Torvalds } 34371da177e4SLinus Torvalds 34381da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 34391da177e4SLinus Torvalds { 34401da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 34411da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 34421da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3443bcecff77SChuck Lever size_t hdrlen; 3444bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 34458687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 34467bda2cdfSJeff Layton unsigned int nr = 0; 3447bcecff77SChuck Lever int status; 34481da177e4SLinus Torvalds 34491da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 34501da177e4SLinus Torvalds if (status) 34511da177e4SLinus Torvalds return status; 34521da177e4SLinus Torvalds READ_BUF(8); 34531da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 345444109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 345544109241SFred Isaman __func__, 3456eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3457eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3458eadf4598STrond Myklebust 34591da177e4SLinus Torvalds 34601da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 34611da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 34621da177e4SLinus Torvalds if (pglen > recvd) 34631da177e4SLinus Torvalds pglen = recvd; 34641da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 34651da177e4SLinus Torvalds 34661da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 34678687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3468e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 34691da177e4SLinus Torvalds entry = p; 34707bda2cdfSJeff Layton 34717bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 34727bda2cdfSJeff Layton if ((entry + 1) > end) 34737bda2cdfSJeff Layton goto short_pkt; 34747bda2cdfSJeff Layton 34757bda2cdfSJeff Layton for (; *p++; nr++) { 3476bcecff77SChuck Lever u32 len, attrlen, xlen; 3477e8896495SDavid Howells if (end - p < 3) 34781da177e4SLinus Torvalds goto short_pkt; 3479eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 34801da177e4SLinus Torvalds p += 2; /* cookie */ 34811da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 34821da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3483fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3484fe82a183SChuck Lever len); 34851da177e4SLinus Torvalds goto err_unmap; 34861da177e4SLinus Torvalds } 3487e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3488e8896495SDavid Howells if (end - p < xlen + 1) 3489e8896495SDavid Howells goto short_pkt; 3490eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3491e8896495SDavid Howells p += xlen; 34921da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3493e8896495SDavid Howells if (end - p < len + 1) 3494e8896495SDavid Howells goto short_pkt; 34951da177e4SLinus Torvalds p += len; 34961da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3497e8896495SDavid Howells if (end - p < attrlen + 2) 34981da177e4SLinus Torvalds goto short_pkt; 3499e8896495SDavid Howells p += attrlen; /* attributes */ 35001da177e4SLinus Torvalds entry = p; 35011da177e4SLinus Torvalds } 35027bda2cdfSJeff Layton /* 35037bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 35047bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 35057bda2cdfSJeff Layton * those, just set the EOF marker. 35067bda2cdfSJeff Layton */ 35077bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 35087bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 35097bda2cdfSJeff Layton entry[1] = 1; 35107bda2cdfSJeff Layton } 35111da177e4SLinus Torvalds out: 35121da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35131da177e4SLinus Torvalds return 0; 35141da177e4SLinus Torvalds short_pkt: 35157bda2cdfSJeff Layton /* 35167bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 35177bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 35187bda2cdfSJeff Layton * response and return what we have so far. If there are no 35197bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 35207bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 35217bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 35227bda2cdfSJeff Layton * readdir starting at the last cookie. 35237bda2cdfSJeff Layton */ 35243110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 35251da177e4SLinus Torvalds entry[0] = entry[1] = 0; 35267bda2cdfSJeff Layton if (nr) 35271da177e4SLinus Torvalds goto out; 35281da177e4SLinus Torvalds err_unmap: 35291da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35301da177e4SLinus Torvalds return -errno_NFSERR_IO; 35311da177e4SLinus Torvalds } 35321da177e4SLinus Torvalds 35331da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 35341da177e4SLinus Torvalds { 35351da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 35361da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3537bcecff77SChuck Lever size_t hdrlen; 3538bcecff77SChuck Lever u32 len, recvd; 35398687b63aSAl Viro __be32 *p; 35401da177e4SLinus Torvalds char *kaddr; 35411da177e4SLinus Torvalds int status; 35421da177e4SLinus Torvalds 35431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 35441da177e4SLinus Torvalds if (status) 35451da177e4SLinus Torvalds return status; 35461da177e4SLinus Torvalds 35471da177e4SLinus Torvalds /* Convert length of symlink */ 35481da177e4SLinus Torvalds READ_BUF(4); 35491da177e4SLinus Torvalds READ32(len); 35501da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3551fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 35521da177e4SLinus Torvalds return -ENAMETOOLONG; 35531da177e4SLinus Torvalds } 35541da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 35551da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 35561da177e4SLinus Torvalds if (recvd < len) { 3557fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 35581da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 35591da177e4SLinus Torvalds return -EIO; 35601da177e4SLinus Torvalds } 35611da177e4SLinus Torvalds xdr_read_pages(xdr, len); 35621da177e4SLinus Torvalds /* 35631da177e4SLinus Torvalds * The XDR encode routine has set things up so that 35641da177e4SLinus Torvalds * the link text will be copied directly into the 35651da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 35661da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 35671da177e4SLinus Torvalds * null-termination). 35681da177e4SLinus Torvalds */ 35691da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 35701da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 35711da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35721da177e4SLinus Torvalds return 0; 35731da177e4SLinus Torvalds } 35741da177e4SLinus Torvalds 35751da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35761da177e4SLinus Torvalds { 35771da177e4SLinus Torvalds int status; 35781da177e4SLinus Torvalds 35791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 35801da177e4SLinus Torvalds if (status) 35811da177e4SLinus Torvalds goto out; 35821da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 35831da177e4SLinus Torvalds out: 35841da177e4SLinus Torvalds return status; 35851da177e4SLinus Torvalds } 35861da177e4SLinus Torvalds 35871da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 35881da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 35891da177e4SLinus Torvalds { 35901da177e4SLinus Torvalds int status; 35911da177e4SLinus Torvalds 35921da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 35931da177e4SLinus Torvalds if (status) 35941da177e4SLinus Torvalds goto out; 35951da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 35961da177e4SLinus Torvalds goto out; 35971da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 35981da177e4SLinus Torvalds out: 35991da177e4SLinus Torvalds return status; 36001da177e4SLinus Torvalds } 36011da177e4SLinus Torvalds 36021da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 36031da177e4SLinus Torvalds { 36041da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 36051da177e4SLinus Torvalds } 36061da177e4SLinus Torvalds 360756ae19f3STrond Myklebust static int 360856ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 360956ae19f3STrond Myklebust { 361056ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 361156ae19f3STrond Myklebust } 361256ae19f3STrond Myklebust 3613029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3614029d105eSJ. Bruce Fields size_t *acl_len) 3615029d105eSJ. Bruce Fields { 36168687b63aSAl Viro __be32 *savep; 3617029d105eSJ. Bruce Fields uint32_t attrlen, 3618029d105eSJ. Bruce Fields bitmap[2] = {0}; 3619029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 3620029d105eSJ. Bruce Fields int status; 3621029d105eSJ. Bruce Fields 3622029d105eSJ. Bruce Fields *acl_len = 0; 3623029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3624029d105eSJ. Bruce Fields goto out; 3625029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3626029d105eSJ. Bruce Fields goto out; 3627029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3628029d105eSJ. Bruce Fields goto out; 3629029d105eSJ. Bruce Fields 3630029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3631029d105eSJ. Bruce Fields return -EIO; 3632029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3633bcecff77SChuck Lever size_t hdrlen; 3634bcecff77SChuck Lever u32 recvd; 3635029d105eSJ. Bruce Fields 3636029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 3637029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 3638029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3639029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 3640029d105eSJ. Bruce Fields if (attrlen > recvd) { 3641fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 3642029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 3643029d105eSJ. Bruce Fields attrlen, recvd); 3644029d105eSJ. Bruce Fields return -EINVAL; 3645029d105eSJ. Bruce Fields } 3646029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 3647029d105eSJ. Bruce Fields *acl_len = attrlen; 36488c233cf9SJ. Bruce Fields } else 36498c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 3650029d105eSJ. Bruce Fields 3651029d105eSJ. Bruce Fields out: 3652029d105eSJ. Bruce Fields return status; 3653029d105eSJ. Bruce Fields } 3654029d105eSJ. Bruce Fields 36551da177e4SLinus Torvalds static int 36561da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 36571da177e4SLinus Torvalds { 36581da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 36591da177e4SLinus Torvalds } 36601da177e4SLinus Torvalds 36611da177e4SLinus Torvalds static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) 36621da177e4SLinus Torvalds { 36638687b63aSAl Viro __be32 *p; 36641da177e4SLinus Torvalds uint32_t bmlen; 36651da177e4SLinus Torvalds int status; 36661da177e4SLinus Torvalds 36671da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 36681da177e4SLinus Torvalds if (status) 36691da177e4SLinus Torvalds return status; 36701da177e4SLinus Torvalds READ_BUF(4); 36711da177e4SLinus Torvalds READ32(bmlen); 36721da177e4SLinus Torvalds READ_BUF(bmlen << 2); 36731da177e4SLinus Torvalds return 0; 36741da177e4SLinus Torvalds } 36751da177e4SLinus Torvalds 3676adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 36771da177e4SLinus Torvalds { 36788687b63aSAl Viro __be32 *p; 36791da177e4SLinus Torvalds uint32_t opnum; 36801da177e4SLinus Torvalds int32_t nfserr; 36811da177e4SLinus Torvalds 36821da177e4SLinus Torvalds READ_BUF(8); 36831da177e4SLinus Torvalds READ32(opnum); 36841da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 3685fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 36861da177e4SLinus Torvalds " %d\n", opnum); 36871da177e4SLinus Torvalds return -EIO; 36881da177e4SLinus Torvalds } 36891da177e4SLinus Torvalds READ32(nfserr); 36901da177e4SLinus Torvalds if (nfserr == NFS_OK) { 36918ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 36921da177e4SLinus Torvalds READ64(clp->cl_clientid); 36938ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 36941da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 36951da177e4SLinus Torvalds uint32_t len; 36961da177e4SLinus Torvalds 36971da177e4SLinus Torvalds /* skip netid string */ 36981da177e4SLinus Torvalds READ_BUF(4); 36991da177e4SLinus Torvalds READ32(len); 37001da177e4SLinus Torvalds READ_BUF(len); 37011da177e4SLinus Torvalds 37021da177e4SLinus Torvalds /* skip uaddr string */ 37031da177e4SLinus Torvalds READ_BUF(4); 37041da177e4SLinus Torvalds READ32(len); 37051da177e4SLinus Torvalds READ_BUF(len); 37061da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 37071da177e4SLinus Torvalds } else 3708856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 37091da177e4SLinus Torvalds 37101da177e4SLinus Torvalds return 0; 37111da177e4SLinus Torvalds } 37121da177e4SLinus Torvalds 37131da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 37141da177e4SLinus Torvalds { 37151da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 37161da177e4SLinus Torvalds } 37171da177e4SLinus Torvalds 37181da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 37191da177e4SLinus Torvalds { 37208687b63aSAl Viro __be32 *p; 37211da177e4SLinus Torvalds int status; 37221da177e4SLinus Torvalds 37231da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 37241da177e4SLinus Torvalds if (status) 37251da177e4SLinus Torvalds return status; 37261da177e4SLinus Torvalds 37271da177e4SLinus Torvalds READ_BUF(16); 37281da177e4SLinus Torvalds READ32(res->count); 37291da177e4SLinus Torvalds READ32(res->verf->committed); 37301da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 37311da177e4SLinus Torvalds return 0; 37321da177e4SLinus Torvalds } 37331da177e4SLinus Torvalds 37341da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 37351da177e4SLinus Torvalds { 37361da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 37371da177e4SLinus Torvalds } 37381da177e4SLinus Torvalds 37391da177e4SLinus Torvalds /* 374049c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 374149c2559eSBenny Halevy */ 374249c2559eSBenny Halevy 374349c2559eSBenny Halevy /* 37441da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 37451da177e4SLinus Torvalds */ 37468687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 37471da177e4SLinus Torvalds { 37481da177e4SLinus Torvalds struct xdr_stream xdr; 37491da177e4SLinus Torvalds struct compound_hdr hdr; 37501da177e4SLinus Torvalds int status; 37511da177e4SLinus Torvalds 37521da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37531da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37541da177e4SLinus Torvalds if (status) 37551da177e4SLinus Torvalds goto out; 37561da177e4SLinus Torvalds status = decode_putfh(&xdr); 37571da177e4SLinus Torvalds if (status) 37581da177e4SLinus Torvalds goto out; 37591da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 3760516a6af6STrond Myklebust if (status != 0) 3761516a6af6STrond Myklebust goto out; 3762516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 37631da177e4SLinus Torvalds out: 37641da177e4SLinus Torvalds return status; 37651da177e4SLinus Torvalds } 37661da177e4SLinus Torvalds 37671da177e4SLinus Torvalds /* 37681da177e4SLinus Torvalds * Decode ACCESS response 37691da177e4SLinus Torvalds */ 37708687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 37711da177e4SLinus Torvalds { 37721da177e4SLinus Torvalds struct xdr_stream xdr; 37731da177e4SLinus Torvalds struct compound_hdr hdr; 37741da177e4SLinus Torvalds int status; 37751da177e4SLinus Torvalds 37761da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37771da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 37781da177e4SLinus Torvalds goto out; 377976b32999STrond Myklebust status = decode_putfh(&xdr); 378076b32999STrond Myklebust if (status != 0) 378176b32999STrond Myklebust goto out; 37821da177e4SLinus Torvalds status = decode_access(&xdr, res); 378376b32999STrond Myklebust if (status != 0) 378476b32999STrond Myklebust goto out; 378576b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 37861da177e4SLinus Torvalds out: 37871da177e4SLinus Torvalds return status; 37881da177e4SLinus Torvalds } 37891da177e4SLinus Torvalds 37901da177e4SLinus Torvalds /* 37911da177e4SLinus Torvalds * Decode LOOKUP response 37921da177e4SLinus Torvalds */ 37938687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 37941da177e4SLinus Torvalds { 37951da177e4SLinus Torvalds struct xdr_stream xdr; 37961da177e4SLinus Torvalds struct compound_hdr hdr; 37971da177e4SLinus Torvalds int status; 37981da177e4SLinus Torvalds 37991da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38001da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38011da177e4SLinus Torvalds goto out; 38021da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38031da177e4SLinus Torvalds goto out; 38041da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 38051da177e4SLinus Torvalds goto out; 38061da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 38071da177e4SLinus Torvalds goto out; 38081da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38091da177e4SLinus Torvalds out: 38101da177e4SLinus Torvalds return status; 38111da177e4SLinus Torvalds } 38121da177e4SLinus Torvalds 38131da177e4SLinus Torvalds /* 38141da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 38151da177e4SLinus Torvalds */ 38168687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 38171da177e4SLinus Torvalds { 38181da177e4SLinus Torvalds struct xdr_stream xdr; 38191da177e4SLinus Torvalds struct compound_hdr hdr; 38201da177e4SLinus Torvalds int status; 38211da177e4SLinus Torvalds 38221da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38231da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38241da177e4SLinus Torvalds goto out; 38251da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 38261da177e4SLinus Torvalds goto out; 38271da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 38281da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38291da177e4SLinus Torvalds out: 38301da177e4SLinus Torvalds return status; 38311da177e4SLinus Torvalds } 38321da177e4SLinus Torvalds 38331da177e4SLinus Torvalds /* 38341da177e4SLinus Torvalds * Decode REMOVE response 38351da177e4SLinus Torvalds */ 38364fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 38371da177e4SLinus Torvalds { 38381da177e4SLinus Torvalds struct xdr_stream xdr; 38391da177e4SLinus Torvalds struct compound_hdr hdr; 38401da177e4SLinus Torvalds int status; 38411da177e4SLinus Torvalds 38421da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38431da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38441da177e4SLinus Torvalds goto out; 384516e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 384616e42959STrond Myklebust goto out; 384716e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 384816e42959STrond Myklebust goto out; 38494fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 38501da177e4SLinus Torvalds out: 38511da177e4SLinus Torvalds return status; 38521da177e4SLinus Torvalds } 38531da177e4SLinus Torvalds 38541da177e4SLinus Torvalds /* 38551da177e4SLinus Torvalds * Decode RENAME response 38561da177e4SLinus Torvalds */ 38578687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 38581da177e4SLinus Torvalds { 38591da177e4SLinus Torvalds struct xdr_stream xdr; 38601da177e4SLinus Torvalds struct compound_hdr hdr; 38611da177e4SLinus Torvalds int status; 38621da177e4SLinus Torvalds 38631da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38641da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38651da177e4SLinus Torvalds goto out; 38661da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38671da177e4SLinus Torvalds goto out; 38681da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 38691da177e4SLinus Torvalds goto out; 38701da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38711da177e4SLinus Torvalds goto out; 38726caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 38736caf2c82STrond Myklebust goto out; 38746caf2c82STrond Myklebust /* Current FH is target directory */ 38756caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 38766caf2c82STrond Myklebust goto out; 38776caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 38786caf2c82STrond Myklebust goto out; 38796caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 38801da177e4SLinus Torvalds out: 38811da177e4SLinus Torvalds return status; 38821da177e4SLinus Torvalds } 38831da177e4SLinus Torvalds 38841da177e4SLinus Torvalds /* 38851da177e4SLinus Torvalds * Decode LINK response 38861da177e4SLinus Torvalds */ 38878687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 38881da177e4SLinus Torvalds { 38891da177e4SLinus Torvalds struct xdr_stream xdr; 38901da177e4SLinus Torvalds struct compound_hdr hdr; 38911da177e4SLinus Torvalds int status; 38921da177e4SLinus Torvalds 38931da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38941da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38951da177e4SLinus Torvalds goto out; 38961da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38971da177e4SLinus Torvalds goto out; 38981da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 38991da177e4SLinus Torvalds goto out; 39001da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39011da177e4SLinus Torvalds goto out; 390291ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 390391ba2eeeSTrond Myklebust goto out; 390491ba2eeeSTrond Myklebust /* 390591ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 390691ba2eeeSTrond Myklebust * filehandle. 390791ba2eeeSTrond Myklebust */ 390891ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 390991ba2eeeSTrond Myklebust goto out; 391091ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 391191ba2eeeSTrond Myklebust goto out; 391291ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 39131da177e4SLinus Torvalds out: 39141da177e4SLinus Torvalds return status; 39151da177e4SLinus Torvalds } 39161da177e4SLinus Torvalds 39171da177e4SLinus Torvalds /* 39181da177e4SLinus Torvalds * Decode CREATE response 39191da177e4SLinus Torvalds */ 39208687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39211da177e4SLinus Torvalds { 39221da177e4SLinus Torvalds struct xdr_stream xdr; 39231da177e4SLinus Torvalds struct compound_hdr hdr; 39241da177e4SLinus Torvalds int status; 39251da177e4SLinus Torvalds 39261da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39271da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 39281da177e4SLinus Torvalds goto out; 39291da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39301da177e4SLinus Torvalds goto out; 393156ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 393256ae19f3STrond Myklebust goto out; 39331da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 39341da177e4SLinus Torvalds goto out; 39351da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 39361da177e4SLinus Torvalds goto out; 393756ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 393856ae19f3STrond Myklebust goto out; 393956ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 394056ae19f3STrond Myklebust goto out; 394156ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 39421da177e4SLinus Torvalds out: 39431da177e4SLinus Torvalds return status; 39441da177e4SLinus Torvalds } 39451da177e4SLinus Torvalds 39461da177e4SLinus Torvalds /* 39471da177e4SLinus Torvalds * Decode SYMLINK response 39481da177e4SLinus Torvalds */ 39498687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39501da177e4SLinus Torvalds { 39511da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 39521da177e4SLinus Torvalds } 39531da177e4SLinus Torvalds 39541da177e4SLinus Torvalds /* 39551da177e4SLinus Torvalds * Decode GETATTR response 39561da177e4SLinus Torvalds */ 39578687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *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_getfattr(&xdr, res->fattr, res->server); 39711da177e4SLinus Torvalds out: 39721da177e4SLinus Torvalds return status; 39731da177e4SLinus Torvalds } 39741da177e4SLinus Torvalds 397523ec6965SJ. Bruce Fields /* 397623ec6965SJ. Bruce Fields * Encode an SETACL request 397723ec6965SJ. Bruce Fields */ 397823ec6965SJ. Bruce Fields static int 39798687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 398023ec6965SJ. Bruce Fields { 398123ec6965SJ. Bruce Fields struct xdr_stream xdr; 398223ec6965SJ. Bruce Fields struct compound_hdr hdr = { 3983d017931cSAndy Adamson .nops = 0, 398423ec6965SJ. Bruce Fields }; 398523ec6965SJ. Bruce Fields int status; 398623ec6965SJ. Bruce Fields 398723ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 398823ec6965SJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 3989cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 3990d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 3991d017931cSAndy Adamson encode_nops(&hdr); 399223ec6965SJ. Bruce Fields return status; 399323ec6965SJ. Bruce Fields } 399405d564feSAndy Adamson 399523ec6965SJ. Bruce Fields /* 399623ec6965SJ. Bruce Fields * Decode SETACL response 399723ec6965SJ. Bruce Fields */ 399823ec6965SJ. Bruce Fields static int 39998687b63aSAl Viro nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) 400023ec6965SJ. Bruce Fields { 400123ec6965SJ. Bruce Fields struct xdr_stream xdr; 400223ec6965SJ. Bruce Fields struct compound_hdr hdr; 400323ec6965SJ. Bruce Fields int status; 400423ec6965SJ. Bruce Fields 400523ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 400623ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 400723ec6965SJ. Bruce Fields if (status) 400823ec6965SJ. Bruce Fields goto out; 400923ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 401023ec6965SJ. Bruce Fields if (status) 401123ec6965SJ. Bruce Fields goto out; 401223ec6965SJ. Bruce Fields status = decode_setattr(&xdr, res); 401323ec6965SJ. Bruce Fields out: 401423ec6965SJ. Bruce Fields return status; 401523ec6965SJ. Bruce Fields } 40161da177e4SLinus Torvalds 40171da177e4SLinus Torvalds /* 4018029d105eSJ. Bruce Fields * Decode GETACL response 4019029d105eSJ. Bruce Fields */ 4020029d105eSJ. Bruce Fields static int 40218687b63aSAl Viro nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) 4022029d105eSJ. Bruce Fields { 4023029d105eSJ. Bruce Fields struct xdr_stream xdr; 4024029d105eSJ. Bruce Fields struct compound_hdr hdr; 4025029d105eSJ. Bruce Fields int status; 4026029d105eSJ. Bruce Fields 4027029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4028029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4029029d105eSJ. Bruce Fields if (status) 4030029d105eSJ. Bruce Fields goto out; 4031029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4032029d105eSJ. Bruce Fields if (status) 4033029d105eSJ. Bruce Fields goto out; 4034029d105eSJ. Bruce Fields status = decode_getacl(&xdr, rqstp, acl_len); 4035029d105eSJ. Bruce Fields 4036029d105eSJ. Bruce Fields out: 4037029d105eSJ. Bruce Fields return status; 4038029d105eSJ. Bruce Fields } 4039029d105eSJ. Bruce Fields 4040029d105eSJ. Bruce Fields /* 40411da177e4SLinus Torvalds * Decode CLOSE response 40421da177e4SLinus Torvalds */ 40438687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 40441da177e4SLinus Torvalds { 40451da177e4SLinus Torvalds struct xdr_stream xdr; 40461da177e4SLinus Torvalds struct compound_hdr hdr; 40471da177e4SLinus Torvalds int status; 40481da177e4SLinus Torvalds 40491da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40501da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40511da177e4SLinus Torvalds if (status) 40521da177e4SLinus Torvalds goto out; 40531da177e4SLinus Torvalds status = decode_putfh(&xdr); 40541da177e4SLinus Torvalds if (status) 40551da177e4SLinus Torvalds goto out; 40561da177e4SLinus Torvalds status = decode_close(&xdr, res); 4057516a6af6STrond Myklebust if (status != 0) 4058516a6af6STrond Myklebust goto out; 4059516a6af6STrond Myklebust /* 4060516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4061516a6af6STrond Myklebust * in which case the getattr call will fail with 4062516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4063516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4064516a6af6STrond Myklebust */ 4065516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 40661da177e4SLinus Torvalds out: 40671da177e4SLinus Torvalds return status; 40681da177e4SLinus Torvalds } 40691da177e4SLinus Torvalds 40701da177e4SLinus Torvalds /* 40711da177e4SLinus Torvalds * Decode OPEN response 40721da177e4SLinus Torvalds */ 40738687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 40741da177e4SLinus Torvalds { 40751da177e4SLinus Torvalds struct xdr_stream xdr; 40761da177e4SLinus Torvalds struct compound_hdr hdr; 40771da177e4SLinus Torvalds int status; 40781da177e4SLinus Torvalds 40791da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40801da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40811da177e4SLinus Torvalds if (status) 40821da177e4SLinus Torvalds goto out; 40831da177e4SLinus Torvalds status = decode_putfh(&xdr); 40841da177e4SLinus Torvalds if (status) 40851da177e4SLinus Torvalds goto out; 408656ae19f3STrond Myklebust status = decode_savefh(&xdr); 408756ae19f3STrond Myklebust if (status) 408856ae19f3STrond Myklebust goto out; 40891da177e4SLinus Torvalds status = decode_open(&xdr, res); 40901da177e4SLinus Torvalds if (status) 40911da177e4SLinus Torvalds goto out; 40929936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 40931da177e4SLinus Torvalds goto out; 409456ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 409556ae19f3STrond Myklebust goto out; 4096365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 409756ae19f3STrond Myklebust goto out; 409856ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 40991da177e4SLinus Torvalds out: 41001da177e4SLinus Torvalds return status; 41011da177e4SLinus Torvalds } 41021da177e4SLinus Torvalds 41031da177e4SLinus Torvalds /* 41041da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 41051da177e4SLinus Torvalds */ 41068687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 41071da177e4SLinus Torvalds { 41081da177e4SLinus Torvalds struct xdr_stream xdr; 41091da177e4SLinus Torvalds struct compound_hdr hdr; 41101da177e4SLinus Torvalds int status; 41111da177e4SLinus Torvalds 41121da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41131da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41141da177e4SLinus Torvalds if (status) 41151da177e4SLinus Torvalds goto out; 41161da177e4SLinus Torvalds status = decode_putfh(&xdr); 41171da177e4SLinus Torvalds if (status) 41181da177e4SLinus Torvalds goto out; 41191da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 41201da177e4SLinus Torvalds out: 41211da177e4SLinus Torvalds return status; 41221da177e4SLinus Torvalds } 41231da177e4SLinus Torvalds 41241da177e4SLinus Torvalds /* 41251da177e4SLinus Torvalds * Decode OPEN response 41261da177e4SLinus Torvalds */ 41278687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 41281da177e4SLinus Torvalds { 41291da177e4SLinus Torvalds struct xdr_stream xdr; 41301da177e4SLinus Torvalds struct compound_hdr hdr; 41311da177e4SLinus Torvalds int status; 41321da177e4SLinus Torvalds 41331da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41341da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41351da177e4SLinus Torvalds if (status) 41361da177e4SLinus Torvalds goto out; 41371da177e4SLinus Torvalds status = decode_putfh(&xdr); 41381da177e4SLinus Torvalds if (status) 41391da177e4SLinus Torvalds goto out; 41401da177e4SLinus Torvalds status = decode_open(&xdr, res); 4141864472e9STrond Myklebust if (status) 4142864472e9STrond Myklebust goto out; 4143864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 41441da177e4SLinus Torvalds out: 41451da177e4SLinus Torvalds return status; 41461da177e4SLinus Torvalds } 41471da177e4SLinus Torvalds 41481da177e4SLinus Torvalds /* 41491da177e4SLinus Torvalds * Decode SETATTR response 41501da177e4SLinus Torvalds */ 41518687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 41521da177e4SLinus Torvalds { 41531da177e4SLinus Torvalds struct xdr_stream xdr; 41541da177e4SLinus Torvalds struct compound_hdr hdr; 41551da177e4SLinus Torvalds int status; 41561da177e4SLinus Torvalds 41571da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41581da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41591da177e4SLinus Torvalds if (status) 41601da177e4SLinus Torvalds goto out; 41611da177e4SLinus Torvalds status = decode_putfh(&xdr); 41621da177e4SLinus Torvalds if (status) 41631da177e4SLinus Torvalds goto out; 41641da177e4SLinus Torvalds status = decode_setattr(&xdr, res); 41651da177e4SLinus Torvalds if (status) 41661da177e4SLinus Torvalds goto out; 416778f945f8STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 41681da177e4SLinus Torvalds out: 41691da177e4SLinus Torvalds return status; 41701da177e4SLinus Torvalds } 41711da177e4SLinus Torvalds 41721da177e4SLinus Torvalds /* 41731da177e4SLinus Torvalds * Decode LOCK response 41741da177e4SLinus Torvalds */ 41758687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_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_lock(&xdr, res); 41891da177e4SLinus Torvalds out: 41901da177e4SLinus Torvalds return status; 41911da177e4SLinus Torvalds } 41921da177e4SLinus Torvalds 41931da177e4SLinus Torvalds /* 41941da177e4SLinus Torvalds * Decode LOCKT response 41951da177e4SLinus Torvalds */ 41968687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *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_lockt(&xdr, res); 42101da177e4SLinus Torvalds out: 42111da177e4SLinus Torvalds return status; 42121da177e4SLinus Torvalds } 42131da177e4SLinus Torvalds 42141da177e4SLinus Torvalds /* 42151da177e4SLinus Torvalds * Decode LOCKU response 42161da177e4SLinus Torvalds */ 42178687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 42181da177e4SLinus Torvalds { 42191da177e4SLinus Torvalds struct xdr_stream xdr; 42201da177e4SLinus Torvalds struct compound_hdr hdr; 42211da177e4SLinus Torvalds int status; 42221da177e4SLinus Torvalds 42231da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42241da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42251da177e4SLinus Torvalds if (status) 42261da177e4SLinus Torvalds goto out; 42271da177e4SLinus Torvalds status = decode_putfh(&xdr); 42281da177e4SLinus Torvalds if (status) 42291da177e4SLinus Torvalds goto out; 42301da177e4SLinus Torvalds status = decode_locku(&xdr, res); 42311da177e4SLinus Torvalds out: 42321da177e4SLinus Torvalds return status; 42331da177e4SLinus Torvalds } 42341da177e4SLinus Torvalds 42351da177e4SLinus Torvalds /* 42361da177e4SLinus Torvalds * Decode READLINK response 42371da177e4SLinus Torvalds */ 4238f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 4239f50c7000SBenny Halevy struct nfs4_readlink_res *res) 42401da177e4SLinus Torvalds { 42411da177e4SLinus Torvalds struct xdr_stream xdr; 42421da177e4SLinus Torvalds struct compound_hdr hdr; 42431da177e4SLinus Torvalds int status; 42441da177e4SLinus Torvalds 42451da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42461da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42471da177e4SLinus Torvalds if (status) 42481da177e4SLinus Torvalds goto out; 42491da177e4SLinus Torvalds status = decode_putfh(&xdr); 42501da177e4SLinus Torvalds if (status) 42511da177e4SLinus Torvalds goto out; 42521da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 42531da177e4SLinus Torvalds out: 42541da177e4SLinus Torvalds return status; 42551da177e4SLinus Torvalds } 42561da177e4SLinus Torvalds 42571da177e4SLinus Torvalds /* 42581da177e4SLinus Torvalds * Decode READDIR response 42591da177e4SLinus Torvalds */ 42608687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 42611da177e4SLinus Torvalds { 42621da177e4SLinus Torvalds struct xdr_stream xdr; 42631da177e4SLinus Torvalds struct compound_hdr hdr; 42641da177e4SLinus Torvalds int status; 42651da177e4SLinus Torvalds 42661da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42671da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42681da177e4SLinus Torvalds if (status) 42691da177e4SLinus Torvalds goto out; 42701da177e4SLinus Torvalds status = decode_putfh(&xdr); 42711da177e4SLinus Torvalds if (status) 42721da177e4SLinus Torvalds goto out; 42731da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 42741da177e4SLinus Torvalds out: 42751da177e4SLinus Torvalds return status; 42761da177e4SLinus Torvalds } 42771da177e4SLinus Torvalds 42781da177e4SLinus Torvalds /* 42791da177e4SLinus Torvalds * Decode Read response 42801da177e4SLinus Torvalds */ 42818687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 42821da177e4SLinus Torvalds { 42831da177e4SLinus Torvalds struct xdr_stream xdr; 42841da177e4SLinus Torvalds struct compound_hdr hdr; 42851da177e4SLinus Torvalds int status; 42861da177e4SLinus Torvalds 42871da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42881da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42891da177e4SLinus Torvalds if (status) 42901da177e4SLinus Torvalds goto out; 42911da177e4SLinus Torvalds status = decode_putfh(&xdr); 42921da177e4SLinus Torvalds if (status) 42931da177e4SLinus Torvalds goto out; 42941da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 42951da177e4SLinus Torvalds if (!status) 42961da177e4SLinus Torvalds status = res->count; 42971da177e4SLinus Torvalds out: 42981da177e4SLinus Torvalds return status; 42991da177e4SLinus Torvalds } 43001da177e4SLinus Torvalds 43011da177e4SLinus Torvalds /* 43021da177e4SLinus Torvalds * Decode WRITE response 43031da177e4SLinus Torvalds */ 43048687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 43051da177e4SLinus Torvalds { 43061da177e4SLinus Torvalds struct xdr_stream xdr; 43071da177e4SLinus Torvalds struct compound_hdr hdr; 43081da177e4SLinus Torvalds int status; 43091da177e4SLinus Torvalds 43101da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43111da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43121da177e4SLinus Torvalds if (status) 43131da177e4SLinus Torvalds goto out; 43141da177e4SLinus Torvalds status = decode_putfh(&xdr); 43151da177e4SLinus Torvalds if (status) 43161da177e4SLinus Torvalds goto out; 43171da177e4SLinus Torvalds status = decode_write(&xdr, res); 43184f9838c7STrond Myklebust if (status) 43194f9838c7STrond Myklebust goto out; 43204f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43211da177e4SLinus Torvalds if (!status) 43221da177e4SLinus Torvalds status = res->count; 43231da177e4SLinus Torvalds out: 43241da177e4SLinus Torvalds return status; 43251da177e4SLinus Torvalds } 43261da177e4SLinus Torvalds 43271da177e4SLinus Torvalds /* 43281da177e4SLinus Torvalds * Decode COMMIT response 43291da177e4SLinus Torvalds */ 43308687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 43311da177e4SLinus Torvalds { 43321da177e4SLinus Torvalds struct xdr_stream xdr; 43331da177e4SLinus Torvalds struct compound_hdr hdr; 43341da177e4SLinus Torvalds int status; 43351da177e4SLinus Torvalds 43361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43371da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43381da177e4SLinus Torvalds if (status) 43391da177e4SLinus Torvalds goto out; 43401da177e4SLinus Torvalds status = decode_putfh(&xdr); 43411da177e4SLinus Torvalds if (status) 43421da177e4SLinus Torvalds goto out; 43431da177e4SLinus Torvalds status = decode_commit(&xdr, res); 43444f9838c7STrond Myklebust if (status) 43454f9838c7STrond Myklebust goto out; 43464f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43471da177e4SLinus Torvalds out: 43481da177e4SLinus Torvalds return status; 43491da177e4SLinus Torvalds } 43501da177e4SLinus Torvalds 43511da177e4SLinus Torvalds /* 43521da177e4SLinus Torvalds * FSINFO request 43531da177e4SLinus Torvalds */ 43543dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 43553dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 43561da177e4SLinus Torvalds { 43571da177e4SLinus Torvalds struct xdr_stream xdr; 43581da177e4SLinus Torvalds struct compound_hdr hdr; 43591da177e4SLinus Torvalds int status; 43601da177e4SLinus Torvalds 43611da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43621da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43631da177e4SLinus Torvalds if (!status) 43641da177e4SLinus Torvalds status = decode_putfh(&xdr); 43651da177e4SLinus Torvalds if (!status) 43663dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 43671da177e4SLinus Torvalds return status; 43681da177e4SLinus Torvalds } 43691da177e4SLinus Torvalds 43701da177e4SLinus Torvalds /* 43711da177e4SLinus Torvalds * PATHCONF request 43721da177e4SLinus Torvalds */ 43738687b63aSAl Viro static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) 43741da177e4SLinus Torvalds { 43751da177e4SLinus Torvalds struct xdr_stream xdr; 43761da177e4SLinus Torvalds struct compound_hdr hdr; 43771da177e4SLinus Torvalds int status; 43781da177e4SLinus Torvalds 43791da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43801da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43811da177e4SLinus Torvalds if (!status) 43821da177e4SLinus Torvalds status = decode_putfh(&xdr); 43831da177e4SLinus Torvalds if (!status) 43841da177e4SLinus Torvalds status = decode_pathconf(&xdr, pathconf); 43851da177e4SLinus Torvalds return status; 43861da177e4SLinus Torvalds } 43871da177e4SLinus Torvalds 43881da177e4SLinus Torvalds /* 43891da177e4SLinus Torvalds * STATFS request 43901da177e4SLinus Torvalds */ 439124ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 439224ad148aSBenny Halevy struct nfs4_statfs_res *res) 43931da177e4SLinus Torvalds { 43941da177e4SLinus Torvalds struct xdr_stream xdr; 43951da177e4SLinus Torvalds struct compound_hdr hdr; 43961da177e4SLinus Torvalds int status; 43971da177e4SLinus Torvalds 43981da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43991da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44001da177e4SLinus Torvalds if (!status) 44011da177e4SLinus Torvalds status = decode_putfh(&xdr); 44021da177e4SLinus Torvalds if (!status) 440324ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 44041da177e4SLinus Torvalds return status; 44051da177e4SLinus Torvalds } 44061da177e4SLinus Torvalds 44071da177e4SLinus Torvalds /* 44081da177e4SLinus Torvalds * GETATTR_BITMAP request 44091da177e4SLinus Torvalds */ 44108687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 44111da177e4SLinus Torvalds { 44121da177e4SLinus Torvalds struct xdr_stream xdr; 44131da177e4SLinus Torvalds struct compound_hdr hdr; 44141da177e4SLinus Torvalds int status; 44151da177e4SLinus Torvalds 44161da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44171da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 44181da177e4SLinus Torvalds goto out; 44191da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44201da177e4SLinus Torvalds goto out; 44211da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 44221da177e4SLinus Torvalds out: 44231da177e4SLinus Torvalds return status; 44241da177e4SLinus Torvalds } 44251da177e4SLinus Torvalds 44261da177e4SLinus Torvalds /* 44271da177e4SLinus Torvalds * Decode RENEW response 44281da177e4SLinus Torvalds */ 44298687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 44301da177e4SLinus Torvalds { 44311da177e4SLinus Torvalds struct xdr_stream xdr; 44321da177e4SLinus Torvalds struct compound_hdr hdr; 44331da177e4SLinus Torvalds int status; 44341da177e4SLinus Torvalds 44351da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44361da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44371da177e4SLinus Torvalds if (!status) 44381da177e4SLinus Torvalds status = decode_renew(&xdr); 44391da177e4SLinus Torvalds return status; 44401da177e4SLinus Torvalds } 44411da177e4SLinus Torvalds 44421da177e4SLinus Torvalds /* 44431da177e4SLinus Torvalds * a SETCLIENTID request 44441da177e4SLinus Torvalds */ 44458687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 4446adfa6f98SDavid Howells struct nfs_client *clp) 44471da177e4SLinus Torvalds { 44481da177e4SLinus Torvalds struct xdr_stream xdr; 44491da177e4SLinus Torvalds struct compound_hdr hdr; 44501da177e4SLinus Torvalds int status; 44511da177e4SLinus Torvalds 44521da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44531da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44541da177e4SLinus Torvalds if (!status) 44551da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 44561da177e4SLinus Torvalds return status; 44571da177e4SLinus Torvalds } 44581da177e4SLinus Torvalds 44591da177e4SLinus Torvalds /* 44601da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 44611da177e4SLinus Torvalds */ 44628687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 44631da177e4SLinus Torvalds { 44641da177e4SLinus Torvalds struct xdr_stream xdr; 44651da177e4SLinus Torvalds struct compound_hdr hdr; 44661da177e4SLinus Torvalds int status; 44671da177e4SLinus Torvalds 44681da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44691da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44701da177e4SLinus Torvalds if (!status) 44711da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 44721da177e4SLinus Torvalds if (!status) 44731da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 44741da177e4SLinus Torvalds if (!status) 44751da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 44761da177e4SLinus Torvalds return status; 44771da177e4SLinus Torvalds } 44781da177e4SLinus Torvalds 44791da177e4SLinus Torvalds /* 44801da177e4SLinus Torvalds * DELEGRETURN request 44811da177e4SLinus Torvalds */ 44828687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 44831da177e4SLinus Torvalds { 44841da177e4SLinus Torvalds struct xdr_stream xdr; 44851da177e4SLinus Torvalds struct compound_hdr hdr; 44861da177e4SLinus Torvalds int status; 44871da177e4SLinus Torvalds 44881da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44891da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 4490fa178f29STrond Myklebust if (status != 0) 4491fa178f29STrond Myklebust goto out; 44921da177e4SLinus Torvalds status = decode_putfh(&xdr); 4493fa178f29STrond Myklebust if (status != 0) 4494fa178f29STrond Myklebust goto out; 44951da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 4496fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 4497fa178f29STrond Myklebust out: 44981da177e4SLinus Torvalds return status; 44991da177e4SLinus Torvalds } 45001da177e4SLinus Torvalds 4501683b57b4STrond Myklebust /* 4502683b57b4STrond Myklebust * FS_LOCATIONS request 4503683b57b4STrond Myklebust */ 45048687b63aSAl Viro static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) 4505683b57b4STrond Myklebust { 4506683b57b4STrond Myklebust struct xdr_stream xdr; 4507683b57b4STrond Myklebust struct compound_hdr hdr; 4508683b57b4STrond Myklebust int status; 4509683b57b4STrond Myklebust 4510683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4511683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 4512683b57b4STrond Myklebust if (status != 0) 4513683b57b4STrond Myklebust goto out; 4514683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 4515683b57b4STrond Myklebust goto out; 4516683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 4517683b57b4STrond Myklebust goto out; 4518683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 4519683b57b4STrond Myklebust status = decode_getfattr(&xdr, &res->fattr, res->server); 4520683b57b4STrond Myklebust out: 4521683b57b4STrond Myklebust return status; 4522683b57b4STrond Myklebust } 4523683b57b4STrond Myklebust 45240dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 45251da177e4SLinus Torvalds { 45261da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 45271da177e4SLinus Torvalds uint32_t len; 45281da177e4SLinus Torvalds 45291da177e4SLinus Torvalds if (!*p++) { 45301da177e4SLinus Torvalds if (!*p) 45311da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 45321da177e4SLinus Torvalds entry->eof = 1; 45331da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 45341da177e4SLinus Torvalds } 45351da177e4SLinus Torvalds 45361da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 45371da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 45381da177e4SLinus Torvalds entry->len = ntohl(*p++); 45391da177e4SLinus Torvalds entry->name = (const char *) p; 45401da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 45411da177e4SLinus Torvalds 45421da177e4SLinus Torvalds /* 45431da177e4SLinus Torvalds * In case the server doesn't return an inode number, 45441da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 45451da177e4SLinus Torvalds * since glibc seems to choke on it...) 45461da177e4SLinus Torvalds */ 45471da177e4SLinus Torvalds entry->ino = 1; 45481da177e4SLinus Torvalds 45491da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 45501da177e4SLinus Torvalds if (len-- > 0) { 45511da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 45521da177e4SLinus Torvalds if (len-- > 0) { 45531da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 45541da177e4SLinus Torvalds p += len; 45551da177e4SLinus Torvalds } 45561da177e4SLinus Torvalds } 45571da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 45581da177e4SLinus Torvalds if (len > 0) { 455997d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 456097d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 456197d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 456297d312d0SManoj Naik p++; 456397d312d0SManoj Naik len--; 456497d312d0SManoj Naik } 45651da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 45661da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45671da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 45681da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45691da177e4SLinus Torvalds p += len; 45701da177e4SLinus Torvalds } 45711da177e4SLinus Torvalds 45721da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 45731da177e4SLinus Torvalds return p; 45741da177e4SLinus Torvalds } 45751da177e4SLinus Torvalds 45761da177e4SLinus Torvalds /* 45771da177e4SLinus Torvalds * We need to translate between nfs status return values and 45781da177e4SLinus Torvalds * the local errno values which may not be the same. 45791da177e4SLinus Torvalds */ 45801da177e4SLinus Torvalds static struct { 45811da177e4SLinus Torvalds int stat; 45821da177e4SLinus Torvalds int errno; 45831da177e4SLinus Torvalds } nfs_errtbl[] = { 45841da177e4SLinus Torvalds { NFS4_OK, 0 }, 4585856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 4586856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 4587856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 4588856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 4589856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 4590856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 4591856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 4592856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 4593856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 4594856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 4595856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 4596856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 4597856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 4598856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 4599856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 4600856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 4601856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 4602856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 4603856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 4604856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 4605856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 4606856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 4607856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 4608856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 4609856dff3dSBenny Halevy { NFS4ERR_SERVERFAULT, -ESERVERFAULT }, 4610856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 4611856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 4612856dff3dSBenny Halevy { NFS4ERR_RESOURCE, -EREMOTEIO }, 4613856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 4614856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 4615856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 4616856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 46171da177e4SLinus Torvalds * to be handled by a 46181da177e4SLinus Torvalds * middle-layer. 46191da177e4SLinus Torvalds */ 4620856dff3dSBenny Halevy { -1, -EIO } 46211da177e4SLinus Torvalds }; 46221da177e4SLinus Torvalds 46231da177e4SLinus Torvalds /* 46241da177e4SLinus Torvalds * Convert an NFS error code to a local one. 46251da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 46261da177e4SLinus Torvalds */ 46271da177e4SLinus Torvalds static int 46280a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 46291da177e4SLinus Torvalds { 46301da177e4SLinus Torvalds int i; 46311da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 46321da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 46331da177e4SLinus Torvalds return nfs_errtbl[i].errno; 46341da177e4SLinus Torvalds } 46351da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 46361da177e4SLinus Torvalds /* The server is looney tunes. */ 4637856dff3dSBenny Halevy return -ESERVERFAULT; 46381da177e4SLinus Torvalds } 46391da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 46401da177e4SLinus Torvalds * handle it. 46411da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 46421da177e4SLinus Torvalds * not conflict with native Linux error codes. 46431da177e4SLinus Torvalds */ 4644856dff3dSBenny Halevy return -stat; 46451da177e4SLinus Torvalds } 46461da177e4SLinus Torvalds 46471da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 46481da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 46491da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 46501da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 46511da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 46522bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 46532bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 4654cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 4655cc0175c1SChuck Lever .p_name = #proc, \ 46561da177e4SLinus Torvalds } 46571da177e4SLinus Torvalds 46581da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 46591da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 46601da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 46611da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 46621da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 46631da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 46641da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 46651da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 46661da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 46671da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 46681da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 46691da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 46701da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 46711da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 46721da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 46731da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 46741da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 46751da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 46761da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 46771da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 46781da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 46791da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 46801da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 46811da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 46821da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 46831da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 46841da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 46851da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 46861da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 46871da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 46881da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 46891da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4690029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 469123ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 4692683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 46931da177e4SLinus Torvalds }; 46941da177e4SLinus Torvalds 46951da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 46961da177e4SLinus Torvalds .number = 4, 4697e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 46981da177e4SLinus Torvalds .procs = nfs4_procedures 46991da177e4SLinus Torvalds }; 47001da177e4SLinus Torvalds 47011da177e4SLinus Torvalds /* 47021da177e4SLinus Torvalds * Local variables: 47031da177e4SLinus Torvalds * c-basic-offset: 8 47041da177e4SLinus Torvalds * End: 47051da177e4SLinus Torvalds */ 4706