11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * fs/nfs/nfs4xdr.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side XDR for NFSv4. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2002 The Regents of the University of Michigan. 71da177e4SLinus Torvalds * All rights reserved. 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Kendrick Smith <kmsmith@umich.edu> 101da177e4SLinus Torvalds * Andy Adamson <andros@umich.edu> 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or without 131da177e4SLinus Torvalds * modification, are permitted provided that the following conditions 141da177e4SLinus Torvalds * are met: 151da177e4SLinus Torvalds * 161da177e4SLinus Torvalds * 1. Redistributions of source code must retain the above copyright 171da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer. 181da177e4SLinus Torvalds * 2. Redistributions in binary form must reproduce the above copyright 191da177e4SLinus Torvalds * notice, this list of conditions and the following disclaimer in the 201da177e4SLinus Torvalds * documentation and/or other materials provided with the distribution. 211da177e4SLinus Torvalds * 3. Neither the name of the University nor the names of its 221da177e4SLinus Torvalds * contributors may be used to endorse or promote products derived 231da177e4SLinus Torvalds * from this software without specific prior written permission. 241da177e4SLinus Torvalds * 251da177e4SLinus Torvalds * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 261da177e4SLinus Torvalds * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 271da177e4SLinus Torvalds * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 281da177e4SLinus Torvalds * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 291da177e4SLinus Torvalds * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 301da177e4SLinus Torvalds * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 311da177e4SLinus Torvalds * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 321da177e4SLinus Torvalds * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 331da177e4SLinus Torvalds * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 341da177e4SLinus Torvalds * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 351da177e4SLinus Torvalds * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 361da177e4SLinus Torvalds */ 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #include <linux/param.h> 391da177e4SLinus Torvalds #include <linux/time.h> 401da177e4SLinus Torvalds #include <linux/mm.h> 411da177e4SLinus Torvalds #include <linux/slab.h> 421da177e4SLinus Torvalds #include <linux/utsname.h> 431da177e4SLinus Torvalds #include <linux/errno.h> 441da177e4SLinus Torvalds #include <linux/string.h> 451da177e4SLinus Torvalds #include <linux/in.h> 461da177e4SLinus Torvalds #include <linux/pagemap.h> 471da177e4SLinus Torvalds #include <linux/proc_fs.h> 481da177e4SLinus Torvalds #include <linux/kdev_t.h> 491da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 501da177e4SLinus Torvalds #include <linux/nfs.h> 511da177e4SLinus Torvalds #include <linux/nfs4.h> 521da177e4SLinus Torvalds #include <linux/nfs_fs.h> 531da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 544ce79717STrond Myklebust #include "nfs4_fs.h" 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 591da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 601da177e4SLinus Torvalds 610a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 641da177e4SLinus Torvalds #ifdef DEBUG 651da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 661da177e4SLinus Torvalds #else 671da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 681da177e4SLinus Torvalds #endif 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* lock,open owner id: 719f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 721da177e4SLinus Torvalds */ 739f958ab8STrond Myklebust #define open_owner_id_maxsz (1 + 4) 749f958ab8STrond Myklebust #define lock_owner_id_maxsz (1 + 4) 759104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 761da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 771da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 781da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 791da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 809104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 819104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 829104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 839104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 841da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 851da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 861da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 871da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 881da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 891da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 901da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 911da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9296928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9396928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 941da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 951da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 96bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 97bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 9896928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 9996928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 100bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10196928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10296928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10396928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1049104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1059104a55dSTrond Myklebust 1 + 2 + 1 + \ 1069104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1079104a55dSTrond Myklebust nfs4_group_maxsz + \ 1089104a55dSTrond Myklebust 4 + 4) 1091da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1101da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11156ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11256ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1132f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1141da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1151da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1161da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1171da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1181da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 119cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 120cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 121cc38bac3SChuck Lever 1 /* sc_prog */ + \ 122cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 123cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 124cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1251da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1261da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1271da177e4SLinus Torvalds 2 + \ 1281da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1291da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1301da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1311da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1321da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1331da177e4SLinus Torvalds (op_decode_hdr_maxsz) 134e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 135e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1362cebf828STrond Myklebust #define encode_share_access_maxsz \ 1372cebf828STrond Myklebust (2) 1389104a55dSTrond Myklebust #define encode_createmode_maxsz (1 + encode_attrs_maxsz) 1392cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1402cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1412cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1422cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1432cebf828STrond Myklebust open_owner_id_maxsz + \ 1442cebf828STrond Myklebust encode_opentype_maxsz + \ 1452cebf828STrond Myklebust encode_claim_null_maxsz) 1462cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1479104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1482cebf828STrond Myklebust decode_ace_maxsz) 1492cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1502cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1519104a55dSTrond Myklebust decode_stateid_maxsz + \ 1522cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1532cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1542cebf828STrond Myklebust decode_delegation_maxsz) 1559104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1569104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1579104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1589104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1599104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1609104a55dSTrond Myklebust decode_stateid_maxsz) 1619104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1629104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1639104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1649104a55dSTrond Myklebust encode_share_access_maxsz) 1659104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1669104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1679104a55dSTrond Myklebust decode_stateid_maxsz) 1689104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1699104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1709104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1719104a55dSTrond Myklebust decode_stateid_maxsz) 1729104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1739104a55dSTrond Myklebust encode_stateid_maxsz + \ 1749104a55dSTrond Myklebust encode_attrs_maxsz) 1759104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1769104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1779104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1789104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1799104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1809104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1819104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1829104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1839104a55dSTrond Myklebust decode_verifier_maxsz) 1849104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1859104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1869104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1879104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1889104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1909104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1919104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1929104a55dSTrond Myklebust decode_verifier_maxsz) 1931da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1941da177e4SLinus Torvalds nfs4_name_maxsz) 1951da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1961da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 1971da177e4SLinus Torvalds #define decode_rename_maxsz (op_decode_hdr_maxsz + 5 + 5) 1981da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 1991da177e4SLinus Torvalds nfs4_name_maxsz) 2001da177e4SLinus Torvalds #define decode_link_maxsz (op_decode_hdr_maxsz + 5) 2019104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2029104a55dSTrond Myklebust 7 + \ 2039104a55dSTrond Myklebust 1 + encode_stateid_maxsz + 8) 2049104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2059104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2069104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2079104a55dSTrond Myklebust decode_lock_denied_maxsz) 2089104a55dSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) 2099104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2109104a55dSTrond Myklebust decode_lock_denied_maxsz) 2119104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2129104a55dSTrond Myklebust encode_stateid_maxsz + \ 2139104a55dSTrond Myklebust 4) 2149104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2159104a55dSTrond Myklebust decode_stateid_maxsz) 2169104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2179104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2181da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2191da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 22094a6d753SChuck Lever 1 + \ 22196928206SJ. Bruce Fields nfs4_fattr_maxsz) 2221da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2231da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2249104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2259104a55dSTrond Myklebust encode_attrs_maxsz) 2262cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2272cebf828STrond Myklebust decode_change_info_maxsz + \ 2282cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2299104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2309104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2311da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2321da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2339104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2349104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2359104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2369104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2379104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2389104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 239e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 240e6889620STrond Myklebust (encode_getattr_maxsz) 241e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 242e6889620STrond Myklebust (0) 2431da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 2441da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 2451da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 2461da177e4SLinus Torvalds encode_putfh_maxsz + \ 2479104a55dSTrond Myklebust encode_read_maxsz) 2481da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 2491da177e4SLinus Torvalds decode_putfh_maxsz + \ 2509104a55dSTrond Myklebust decode_read_maxsz) 2511da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 2521da177e4SLinus Torvalds encode_putfh_maxsz + \ 2539104a55dSTrond Myklebust encode_readlink_maxsz) 2541da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 2551da177e4SLinus Torvalds decode_putfh_maxsz + \ 2569104a55dSTrond Myklebust decode_readlink_maxsz) 2571da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 2581da177e4SLinus Torvalds encode_putfh_maxsz + \ 2599104a55dSTrond Myklebust encode_readdir_maxsz) 2601da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 2611da177e4SLinus Torvalds decode_putfh_maxsz + \ 2629104a55dSTrond Myklebust decode_readdir_maxsz) 2631da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 2641da177e4SLinus Torvalds encode_putfh_maxsz + \ 2659104a55dSTrond Myklebust encode_write_maxsz + \ 2664f9838c7STrond Myklebust encode_getattr_maxsz) 2671da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 2681da177e4SLinus Torvalds decode_putfh_maxsz + \ 2699104a55dSTrond Myklebust decode_write_maxsz + \ 2704f9838c7STrond Myklebust decode_getattr_maxsz) 2711da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 2721da177e4SLinus Torvalds encode_putfh_maxsz + \ 2739104a55dSTrond Myklebust encode_commit_maxsz + \ 2744f9838c7STrond Myklebust encode_getattr_maxsz) 2751da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 2761da177e4SLinus Torvalds decode_putfh_maxsz + \ 2779104a55dSTrond Myklebust decode_commit_maxsz + \ 2784f9838c7STrond Myklebust decode_getattr_maxsz) 2791da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 2801da177e4SLinus Torvalds encode_putfh_maxsz + \ 2812cebf828STrond Myklebust encode_savefh_maxsz + \ 2822cebf828STrond Myklebust encode_open_maxsz + \ 2832cebf828STrond Myklebust encode_getfh_maxsz + \ 2841da177e4SLinus Torvalds encode_getattr_maxsz + \ 2852cebf828STrond Myklebust encode_restorefh_maxsz + \ 2862cebf828STrond Myklebust encode_getattr_maxsz) 2871da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 2881da177e4SLinus Torvalds decode_putfh_maxsz + \ 2892cebf828STrond Myklebust decode_savefh_maxsz + \ 2902cebf828STrond Myklebust decode_open_maxsz + \ 2912cebf828STrond Myklebust decode_getfh_maxsz + \ 2921da177e4SLinus Torvalds decode_getattr_maxsz + \ 2932cebf828STrond Myklebust decode_restorefh_maxsz + \ 2942cebf828STrond Myklebust decode_getattr_maxsz) 2951da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 2961da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 2971da177e4SLinus Torvalds encode_putfh_maxsz + \ 2989104a55dSTrond Myklebust encode_open_confirm_maxsz) 2999104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3009104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3011da177e4SLinus Torvalds decode_putfh_maxsz + \ 3029104a55dSTrond Myklebust decode_open_confirm_maxsz) 3031da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3041da177e4SLinus Torvalds encode_putfh_maxsz + \ 3052cebf828STrond Myklebust encode_open_maxsz + \ 3062cebf828STrond Myklebust encode_getattr_maxsz) 3071da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3081da177e4SLinus Torvalds decode_putfh_maxsz + \ 3092cebf828STrond Myklebust decode_open_maxsz + \ 3102cebf828STrond Myklebust decode_getattr_maxsz) 3111da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3121da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3131da177e4SLinus Torvalds encode_putfh_maxsz + \ 3149104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 315516a6af6STrond Myklebust encode_getattr_maxsz) 3161da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 3171da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3181da177e4SLinus Torvalds decode_putfh_maxsz + \ 3199104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 320516a6af6STrond Myklebust decode_getattr_maxsz) 3211da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 3221da177e4SLinus Torvalds encode_putfh_maxsz + \ 3239104a55dSTrond Myklebust encode_close_maxsz + \ 324516a6af6STrond Myklebust encode_getattr_maxsz) 3251da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 3261da177e4SLinus Torvalds decode_putfh_maxsz + \ 3279104a55dSTrond Myklebust decode_close_maxsz + \ 328516a6af6STrond Myklebust decode_getattr_maxsz) 3291da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 3301da177e4SLinus Torvalds encode_putfh_maxsz + \ 3319104a55dSTrond Myklebust encode_setattr_maxsz + \ 3321da177e4SLinus Torvalds encode_getattr_maxsz) 3331da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 3341da177e4SLinus Torvalds decode_putfh_maxsz + \ 3359104a55dSTrond Myklebust decode_setattr_maxsz + \ 3369104a55dSTrond Myklebust decode_getattr_maxsz) 3371da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 3381da177e4SLinus Torvalds encode_putfh_maxsz + \ 3391da177e4SLinus Torvalds encode_fsinfo_maxsz) 3401da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 3411da177e4SLinus Torvalds decode_putfh_maxsz + \ 3421da177e4SLinus Torvalds decode_fsinfo_maxsz) 3431da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 3441da177e4SLinus Torvalds encode_renew_maxsz) 3451da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 3461da177e4SLinus Torvalds decode_renew_maxsz) 3471da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 3481da177e4SLinus Torvalds encode_setclientid_maxsz) 3491da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 3501da177e4SLinus Torvalds decode_setclientid_maxsz) 3511da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 3521da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3531da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 3541da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 3551da177e4SLinus Torvalds encode_fsinfo_maxsz) 3561da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 3571da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 3581da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 3591da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 3601da177e4SLinus Torvalds decode_fsinfo_maxsz) 3611da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 3621da177e4SLinus Torvalds encode_putfh_maxsz + \ 3639104a55dSTrond Myklebust encode_lock_maxsz) 3641da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 3651da177e4SLinus Torvalds decode_putfh_maxsz + \ 3669104a55dSTrond Myklebust decode_lock_maxsz) 3671da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 3681da177e4SLinus Torvalds encode_putfh_maxsz + \ 3699104a55dSTrond Myklebust encode_lockt_maxsz) 3709104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 3719104a55dSTrond Myklebust decode_putfh_maxsz + \ 3729104a55dSTrond Myklebust decode_lockt_maxsz) 3731da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 3741da177e4SLinus Torvalds encode_putfh_maxsz + \ 3759104a55dSTrond Myklebust encode_locku_maxsz) 3761da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 3771da177e4SLinus Torvalds decode_putfh_maxsz + \ 3789104a55dSTrond Myklebust decode_locku_maxsz) 3791da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 3801da177e4SLinus Torvalds encode_putfh_maxsz + \ 38176b32999STrond Myklebust encode_access_maxsz + \ 38276b32999STrond Myklebust encode_getattr_maxsz) 3831da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 3841da177e4SLinus Torvalds decode_putfh_maxsz + \ 38576b32999STrond Myklebust decode_access_maxsz + \ 38676b32999STrond Myklebust decode_getattr_maxsz) 3871da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 3881da177e4SLinus Torvalds encode_putfh_maxsz + \ 3891da177e4SLinus Torvalds encode_getattr_maxsz) 3901da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 3911da177e4SLinus Torvalds decode_putfh_maxsz + \ 3921da177e4SLinus Torvalds decode_getattr_maxsz) 3931da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 3941da177e4SLinus Torvalds encode_putfh_maxsz + \ 3951da177e4SLinus Torvalds encode_lookup_maxsz + \ 3961da177e4SLinus Torvalds encode_getattr_maxsz + \ 3971da177e4SLinus Torvalds encode_getfh_maxsz) 3981da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 3991da177e4SLinus Torvalds decode_putfh_maxsz + \ 400e6889620STrond Myklebust decode_lookup_maxsz + \ 4011da177e4SLinus Torvalds decode_getattr_maxsz + \ 4021da177e4SLinus Torvalds decode_getfh_maxsz) 4031da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 4041da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4051da177e4SLinus Torvalds encode_getattr_maxsz + \ 4061da177e4SLinus Torvalds encode_getfh_maxsz) 4071da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 4081da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4091da177e4SLinus Torvalds decode_getattr_maxsz + \ 4101da177e4SLinus Torvalds decode_getfh_maxsz) 4111da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 4121da177e4SLinus Torvalds encode_putfh_maxsz + \ 41316e42959STrond Myklebust encode_remove_maxsz + \ 41416e42959STrond Myklebust encode_getattr_maxsz) 4151da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 4161da177e4SLinus Torvalds decode_putfh_maxsz + \ 41716e42959STrond Myklebust op_decode_hdr_maxsz + 5 + \ 41816e42959STrond Myklebust decode_getattr_maxsz) 4191da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 4201da177e4SLinus Torvalds encode_putfh_maxsz + \ 4211da177e4SLinus Torvalds encode_savefh_maxsz + \ 4221da177e4SLinus Torvalds encode_putfh_maxsz + \ 4236caf2c82STrond Myklebust encode_rename_maxsz + \ 4246caf2c82STrond Myklebust encode_getattr_maxsz + \ 4256caf2c82STrond Myklebust encode_restorefh_maxsz + \ 4266caf2c82STrond Myklebust encode_getattr_maxsz) 4271da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 4281da177e4SLinus Torvalds decode_putfh_maxsz + \ 4291da177e4SLinus Torvalds decode_savefh_maxsz + \ 4301da177e4SLinus Torvalds decode_putfh_maxsz + \ 4316caf2c82STrond Myklebust decode_rename_maxsz + \ 4326caf2c82STrond Myklebust decode_getattr_maxsz + \ 4336caf2c82STrond Myklebust decode_restorefh_maxsz + \ 4346caf2c82STrond Myklebust decode_getattr_maxsz) 4351da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 4361da177e4SLinus Torvalds encode_putfh_maxsz + \ 4371da177e4SLinus Torvalds encode_savefh_maxsz + \ 4381da177e4SLinus Torvalds encode_putfh_maxsz + \ 43991ba2eeeSTrond Myklebust encode_link_maxsz + \ 44091ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 44191ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 44291ba2eeeSTrond Myklebust decode_getattr_maxsz) 4431da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 4441da177e4SLinus Torvalds decode_putfh_maxsz + \ 4451da177e4SLinus Torvalds decode_savefh_maxsz + \ 4461da177e4SLinus Torvalds decode_putfh_maxsz + \ 44791ba2eeeSTrond Myklebust decode_link_maxsz + \ 44891ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 44991ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 45091ba2eeeSTrond Myklebust decode_getattr_maxsz) 4511da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 4521da177e4SLinus Torvalds encode_putfh_maxsz + \ 4531da177e4SLinus Torvalds encode_symlink_maxsz + \ 4541da177e4SLinus Torvalds encode_getattr_maxsz + \ 4551da177e4SLinus Torvalds encode_getfh_maxsz) 4561da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 4571da177e4SLinus Torvalds decode_putfh_maxsz + \ 4581da177e4SLinus Torvalds decode_symlink_maxsz + \ 4591da177e4SLinus Torvalds decode_getattr_maxsz + \ 4601da177e4SLinus Torvalds decode_getfh_maxsz) 4611da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 4621da177e4SLinus Torvalds encode_putfh_maxsz + \ 46356ae19f3STrond Myklebust encode_savefh_maxsz + \ 4641da177e4SLinus Torvalds encode_create_maxsz + \ 46556ae19f3STrond Myklebust encode_getfh_maxsz + \ 4661da177e4SLinus Torvalds encode_getattr_maxsz + \ 46756ae19f3STrond Myklebust encode_restorefh_maxsz + \ 46856ae19f3STrond Myklebust encode_getattr_maxsz) 4691da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 4701da177e4SLinus Torvalds decode_putfh_maxsz + \ 47156ae19f3STrond Myklebust decode_savefh_maxsz + \ 4721da177e4SLinus Torvalds decode_create_maxsz + \ 47356ae19f3STrond Myklebust decode_getfh_maxsz + \ 4741da177e4SLinus Torvalds decode_getattr_maxsz + \ 47556ae19f3STrond Myklebust decode_restorefh_maxsz + \ 47656ae19f3STrond Myklebust decode_getattr_maxsz) 4771da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 4781da177e4SLinus Torvalds encode_putfh_maxsz + \ 4791da177e4SLinus Torvalds encode_getattr_maxsz) 4801da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 4811da177e4SLinus Torvalds decode_putfh_maxsz + \ 4821da177e4SLinus Torvalds decode_getattr_maxsz) 4831da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 4841da177e4SLinus Torvalds encode_putfh_maxsz + \ 4859104a55dSTrond Myklebust encode_statfs_maxsz) 4861da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 4871da177e4SLinus Torvalds decode_putfh_maxsz + \ 4889104a55dSTrond Myklebust decode_statfs_maxsz) 4891da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 490ab91f264STrond Myklebust encode_putfh_maxsz + \ 4911da177e4SLinus Torvalds encode_getattr_maxsz) 4921da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 493ab91f264STrond Myklebust decode_putfh_maxsz + \ 4941da177e4SLinus Torvalds decode_getattr_maxsz) 4951da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 4961da177e4SLinus Torvalds encode_putfh_maxsz + \ 497fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 498fa178f29STrond Myklebust encode_getattr_maxsz) 4991da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 500fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 501fa178f29STrond Myklebust decode_getattr_maxsz) 502029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 503029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 5049104a55dSTrond Myklebust encode_getacl_maxsz) 505029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 506029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 5079104a55dSTrond Myklebust decode_getacl_maxsz) 50823ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 50923ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 5109104a55dSTrond Myklebust encode_setacl_maxsz) 51123ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 51223ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 5139104a55dSTrond Myklebust decode_setacl_maxsz) 514683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 515683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 516683b57b4STrond Myklebust encode_putfh_maxsz + \ 517e6889620STrond Myklebust encode_lookup_maxsz + \ 518e6889620STrond Myklebust encode_fs_locations_maxsz) 519683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 520683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 521683b57b4STrond Myklebust decode_putfh_maxsz + \ 522e6889620STrond Myklebust decode_lookup_maxsz + \ 523e6889620STrond Myklebust decode_fs_locations_maxsz) 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds static struct { 5261da177e4SLinus Torvalds unsigned int mode; 5271da177e4SLinus Torvalds unsigned int nfs2type; 5281da177e4SLinus Torvalds } nfs_type2fmt[] = { 5291da177e4SLinus Torvalds { 0, NFNON }, 5301da177e4SLinus Torvalds { S_IFREG, NFREG }, 5311da177e4SLinus Torvalds { S_IFDIR, NFDIR }, 5321da177e4SLinus Torvalds { S_IFBLK, NFBLK }, 5331da177e4SLinus Torvalds { S_IFCHR, NFCHR }, 5341da177e4SLinus Torvalds { S_IFLNK, NFLNK }, 5351da177e4SLinus Torvalds { S_IFSOCK, NFSOCK }, 5361da177e4SLinus Torvalds { S_IFIFO, NFFIFO }, 5371da177e4SLinus Torvalds { 0, NFNON }, 5381da177e4SLinus Torvalds { 0, NFNON }, 5391da177e4SLinus Torvalds }; 5401da177e4SLinus Torvalds 5411da177e4SLinus Torvalds struct compound_hdr { 5421da177e4SLinus Torvalds int32_t status; 5431da177e4SLinus Torvalds uint32_t nops; 5441da177e4SLinus Torvalds uint32_t taglen; 5451da177e4SLinus Torvalds char * tag; 5461da177e4SLinus Torvalds }; 5471da177e4SLinus Torvalds 5481da177e4SLinus Torvalds /* 5491da177e4SLinus Torvalds * START OF "GENERIC" ENCODE ROUTINES. 5501da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 5511da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 5521da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 5531da177e4SLinus Torvalds * 5541da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 5551da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 5561da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 5571da177e4SLinus Torvalds */ 5581da177e4SLinus Torvalds #define WRITE32(n) *p++ = htonl(n) 5591da177e4SLinus Torvalds #define WRITE64(n) do { \ 5601da177e4SLinus Torvalds *p++ = htonl((uint32_t)((n) >> 32)); \ 5611da177e4SLinus Torvalds *p++ = htonl((uint32_t)(n)); \ 5621da177e4SLinus Torvalds } while (0) 5631da177e4SLinus Torvalds #define WRITEMEM(ptr,nbytes) do { \ 5641da177e4SLinus Torvalds p = xdr_encode_opaque_fixed(p, ptr, nbytes); \ 5651da177e4SLinus Torvalds } while (0) 5661da177e4SLinus Torvalds 5671da177e4SLinus Torvalds #define RESERVE_SPACE(nbytes) do { \ 5681da177e4SLinus Torvalds p = xdr_reserve_space(xdr, nbytes); \ 5691da177e4SLinus Torvalds BUG_ON(!p); \ 5701da177e4SLinus Torvalds } while (0) 5711da177e4SLinus Torvalds 5721da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 5731da177e4SLinus Torvalds { 5748687b63aSAl Viro __be32 *p; 5751da177e4SLinus Torvalds 5761da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 5771da177e4SLinus Torvalds BUG_ON(p == NULL); 5781da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 5791da177e4SLinus Torvalds } 5801da177e4SLinus Torvalds 5811da177e4SLinus Torvalds static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 5821da177e4SLinus Torvalds { 5838687b63aSAl Viro __be32 *p; 5841da177e4SLinus Torvalds 5851da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 5861da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 5871da177e4SLinus Torvalds RESERVE_SPACE(12+(XDR_QUADLEN(hdr->taglen)<<2)); 5881da177e4SLinus Torvalds WRITE32(hdr->taglen); 5891da177e4SLinus Torvalds WRITEMEM(hdr->tag, hdr->taglen); 5901da177e4SLinus Torvalds WRITE32(NFS4_MINOR_VERSION); 5911da177e4SLinus Torvalds WRITE32(hdr->nops); 5921da177e4SLinus Torvalds return 0; 5931da177e4SLinus Torvalds } 5941da177e4SLinus Torvalds 5951da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 5961da177e4SLinus Torvalds { 5978687b63aSAl Viro __be32 *p; 5981da177e4SLinus Torvalds 5991da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 6001da177e4SLinus Torvalds BUG_ON(p == NULL); 6011da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 6021da177e4SLinus Torvalds } 6031da177e4SLinus Torvalds 6041da177e4SLinus Torvalds static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 6051da177e4SLinus Torvalds { 6061da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 6071da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 6081da177e4SLinus Torvalds int owner_namelen = 0; 6091da177e4SLinus Torvalds int owner_grouplen = 0; 6108687b63aSAl Viro __be32 *p; 6118687b63aSAl Viro __be32 *q; 6121da177e4SLinus Torvalds int len; 6131da177e4SLinus Torvalds uint32_t bmval0 = 0; 6141da177e4SLinus Torvalds uint32_t bmval1 = 0; 6151da177e4SLinus Torvalds int status; 6161da177e4SLinus Torvalds 6171da177e4SLinus Torvalds /* 6181da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 6191da177e4SLinus Torvalds * In the worst-case, this would be 6201da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 6211da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 62223ec6965SJ. Bruce Fields * such as owner/group. 6231da177e4SLinus Torvalds */ 6241da177e4SLinus Torvalds len = 16; 6251da177e4SLinus Torvalds 6261da177e4SLinus Torvalds /* Sigh */ 6271da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 6281da177e4SLinus Torvalds len += 8; 6291da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 6301da177e4SLinus Torvalds len += 4; 6311da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6327539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 6331da177e4SLinus Torvalds if (owner_namelen < 0) { 634fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 6351da177e4SLinus Torvalds iap->ia_uid); 6361da177e4SLinus Torvalds /* XXX */ 6371da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 6381da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 6391da177e4SLinus Torvalds /* goto out; */ 6401da177e4SLinus Torvalds } 6411da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 6421da177e4SLinus Torvalds } 6431da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 6447539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 6451da177e4SLinus Torvalds if (owner_grouplen < 0) { 646fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 6471da177e4SLinus Torvalds iap->ia_gid); 6481da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 6491da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 6501da177e4SLinus Torvalds /* goto out; */ 6511da177e4SLinus Torvalds } 6521da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 6531da177e4SLinus Torvalds } 6541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 6551da177e4SLinus Torvalds len += 16; 6561da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 6571da177e4SLinus Torvalds len += 4; 6581da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 6591da177e4SLinus Torvalds len += 16; 6601da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 6611da177e4SLinus Torvalds len += 4; 6621da177e4SLinus Torvalds RESERVE_SPACE(len); 6631da177e4SLinus Torvalds 6641da177e4SLinus Torvalds /* 6651da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 6661da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 6671da177e4SLinus Torvalds */ 6681da177e4SLinus Torvalds WRITE32(2); 6691da177e4SLinus Torvalds q = p; 6701da177e4SLinus Torvalds p += 3; 6711da177e4SLinus Torvalds 6721da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 6731da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 6741da177e4SLinus Torvalds WRITE64(iap->ia_size); 6751da177e4SLinus Torvalds } 6761da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 6771da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 678cf3fff54STrond Myklebust WRITE32(iap->ia_mode & S_IALLUGO); 6791da177e4SLinus Torvalds } 6801da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 6811da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 6821da177e4SLinus Torvalds WRITE32(owner_namelen); 6831da177e4SLinus Torvalds WRITEMEM(owner_name, owner_namelen); 6841da177e4SLinus Torvalds } 6851da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 6861da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 6871da177e4SLinus Torvalds WRITE32(owner_grouplen); 6881da177e4SLinus Torvalds WRITEMEM(owner_group, owner_grouplen); 6891da177e4SLinus Torvalds } 6901da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 6911da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 6921da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 6931da177e4SLinus Torvalds WRITE32(0); 6941da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 6951da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 6961da177e4SLinus Torvalds } 6971da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 6981da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 6991da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 7001da177e4SLinus Torvalds } 7011da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 7021da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 7031da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_CLIENT_TIME); 7041da177e4SLinus Torvalds WRITE32(0); 7051da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_sec); 7061da177e4SLinus Torvalds WRITE32(iap->ia_mtime.tv_nsec); 7071da177e4SLinus Torvalds } 7081da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 7091da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 7101da177e4SLinus Torvalds WRITE32(NFS4_SET_TO_SERVER_TIME); 7111da177e4SLinus Torvalds } 7121da177e4SLinus Torvalds 7131da177e4SLinus Torvalds /* 7141da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 7151da177e4SLinus Torvalds */ 7161da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 717fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 7181da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 7191da177e4SLinus Torvalds BUG(); 7201da177e4SLinus Torvalds } 7211da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 7221da177e4SLinus Torvalds *q++ = htonl(bmval0); 7231da177e4SLinus Torvalds *q++ = htonl(bmval1); 7241da177e4SLinus Torvalds *q++ = htonl(len); 7251da177e4SLinus Torvalds 7261da177e4SLinus Torvalds status = 0; 7271da177e4SLinus Torvalds /* out: */ 7281da177e4SLinus Torvalds return status; 7291da177e4SLinus Torvalds } 7301da177e4SLinus Torvalds 7311da177e4SLinus Torvalds static int encode_access(struct xdr_stream *xdr, u32 access) 7321da177e4SLinus Torvalds { 7338687b63aSAl Viro __be32 *p; 7341da177e4SLinus Torvalds 7351da177e4SLinus Torvalds RESERVE_SPACE(8); 7361da177e4SLinus Torvalds WRITE32(OP_ACCESS); 7371da177e4SLinus Torvalds WRITE32(access); 7381da177e4SLinus Torvalds 7391da177e4SLinus Torvalds return 0; 7401da177e4SLinus Torvalds } 7411da177e4SLinus Torvalds 7421da177e4SLinus Torvalds static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 7431da177e4SLinus Torvalds { 7448687b63aSAl Viro __be32 *p; 7451da177e4SLinus Torvalds 7468ae20abdSTrond Myklebust RESERVE_SPACE(8+NFS4_STATEID_SIZE); 7471da177e4SLinus Torvalds WRITE32(OP_CLOSE); 748cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 7498ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 7501da177e4SLinus Torvalds 7511da177e4SLinus Torvalds return 0; 7521da177e4SLinus Torvalds } 7531da177e4SLinus Torvalds 7541da177e4SLinus Torvalds static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args) 7551da177e4SLinus Torvalds { 7568687b63aSAl Viro __be32 *p; 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds RESERVE_SPACE(16); 7591da177e4SLinus Torvalds WRITE32(OP_COMMIT); 7601da177e4SLinus Torvalds WRITE64(args->offset); 7611da177e4SLinus Torvalds WRITE32(args->count); 7621da177e4SLinus Torvalds 7631da177e4SLinus Torvalds return 0; 7641da177e4SLinus Torvalds } 7651da177e4SLinus Torvalds 7661da177e4SLinus Torvalds static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create) 7671da177e4SLinus Torvalds { 7688687b63aSAl Viro __be32 *p; 7691da177e4SLinus Torvalds 7701da177e4SLinus Torvalds RESERVE_SPACE(8); 7711da177e4SLinus Torvalds WRITE32(OP_CREATE); 7721da177e4SLinus Torvalds WRITE32(create->ftype); 7731da177e4SLinus Torvalds 7741da177e4SLinus Torvalds switch (create->ftype) { 7751da177e4SLinus Torvalds case NF4LNK: 77694a6d753SChuck Lever RESERVE_SPACE(4); 77794a6d753SChuck Lever WRITE32(create->u.symlink.len); 77894a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 7791da177e4SLinus Torvalds break; 7801da177e4SLinus Torvalds 7811da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 7821da177e4SLinus Torvalds RESERVE_SPACE(8); 7831da177e4SLinus Torvalds WRITE32(create->u.device.specdata1); 7841da177e4SLinus Torvalds WRITE32(create->u.device.specdata2); 7851da177e4SLinus Torvalds break; 7861da177e4SLinus Torvalds 7871da177e4SLinus Torvalds default: 7881da177e4SLinus Torvalds break; 7891da177e4SLinus Torvalds } 7901da177e4SLinus Torvalds 7911da177e4SLinus Torvalds RESERVE_SPACE(4 + create->name->len); 7921da177e4SLinus Torvalds WRITE32(create->name->len); 7931da177e4SLinus Torvalds WRITEMEM(create->name->name, create->name->len); 7941da177e4SLinus Torvalds 7951da177e4SLinus Torvalds return encode_attrs(xdr, create->attrs, create->server); 7961da177e4SLinus Torvalds } 7971da177e4SLinus Torvalds 7981da177e4SLinus Torvalds static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap) 7991da177e4SLinus Torvalds { 8008687b63aSAl Viro __be32 *p; 8011da177e4SLinus Torvalds 8021da177e4SLinus Torvalds RESERVE_SPACE(12); 8031da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8041da177e4SLinus Torvalds WRITE32(1); 8051da177e4SLinus Torvalds WRITE32(bitmap); 8061da177e4SLinus Torvalds return 0; 8071da177e4SLinus Torvalds } 8081da177e4SLinus Torvalds 8091da177e4SLinus Torvalds static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1) 8101da177e4SLinus Torvalds { 8118687b63aSAl Viro __be32 *p; 8121da177e4SLinus Torvalds 8131da177e4SLinus Torvalds RESERVE_SPACE(16); 8141da177e4SLinus Torvalds WRITE32(OP_GETATTR); 8151da177e4SLinus Torvalds WRITE32(2); 8161da177e4SLinus Torvalds WRITE32(bm0); 8171da177e4SLinus Torvalds WRITE32(bm1); 8181da177e4SLinus Torvalds return 0; 8191da177e4SLinus Torvalds } 8201da177e4SLinus Torvalds 8211da177e4SLinus Torvalds static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask) 8221da177e4SLinus Torvalds { 8231da177e4SLinus Torvalds return encode_getattr_two(xdr, 8241da177e4SLinus Torvalds bitmask[0] & nfs4_fattr_bitmap[0], 8251da177e4SLinus Torvalds bitmask[1] & nfs4_fattr_bitmap[1]); 8261da177e4SLinus Torvalds } 8271da177e4SLinus Torvalds 8281da177e4SLinus Torvalds static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask) 8291da177e4SLinus Torvalds { 8301da177e4SLinus Torvalds return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 8311da177e4SLinus Torvalds bitmask[1] & nfs4_fsinfo_bitmap[1]); 8321da177e4SLinus Torvalds } 8331da177e4SLinus Torvalds 834830b8e33SManoj Naik static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask) 835830b8e33SManoj Naik { 836830b8e33SManoj Naik return encode_getattr_two(xdr, 837830b8e33SManoj Naik bitmask[0] & nfs4_fs_locations_bitmap[0], 838830b8e33SManoj Naik bitmask[1] & nfs4_fs_locations_bitmap[1]); 839830b8e33SManoj Naik } 840830b8e33SManoj Naik 8411da177e4SLinus Torvalds static int encode_getfh(struct xdr_stream *xdr) 8421da177e4SLinus Torvalds { 8438687b63aSAl Viro __be32 *p; 8441da177e4SLinus Torvalds 8451da177e4SLinus Torvalds RESERVE_SPACE(4); 8461da177e4SLinus Torvalds WRITE32(OP_GETFH); 8471da177e4SLinus Torvalds 8481da177e4SLinus Torvalds return 0; 8491da177e4SLinus Torvalds } 8501da177e4SLinus Torvalds 8511da177e4SLinus Torvalds static int encode_link(struct xdr_stream *xdr, const struct qstr *name) 8521da177e4SLinus Torvalds { 8538687b63aSAl Viro __be32 *p; 8541da177e4SLinus Torvalds 8551da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 8561da177e4SLinus Torvalds WRITE32(OP_LINK); 8571da177e4SLinus Torvalds WRITE32(name->len); 8581da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 8591da177e4SLinus Torvalds 8601da177e4SLinus Torvalds return 0; 8611da177e4SLinus Torvalds } 8621da177e4SLinus Torvalds 863911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 864911d1aafSTrond Myklebust { 865911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 866911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 867911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 868911d1aafSTrond Myklebust } 869911d1aafSTrond Myklebust 870911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 871911d1aafSTrond Myklebust { 872911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 873911d1aafSTrond Myklebust return ~(uint64_t)0; 874911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 875911d1aafSTrond Myklebust } 876911d1aafSTrond Myklebust 8771da177e4SLinus Torvalds /* 8781da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 8791da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 8801da177e4SLinus Torvalds */ 881911d1aafSTrond Myklebust static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args) 8821da177e4SLinus Torvalds { 8838687b63aSAl Viro __be32 *p; 8841da177e4SLinus Torvalds 8851da177e4SLinus Torvalds RESERVE_SPACE(32); 8861da177e4SLinus Torvalds WRITE32(OP_LOCK); 887911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, args->block)); 888911d1aafSTrond Myklebust WRITE32(args->reclaim); 889911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 890911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 891911d1aafSTrond Myklebust WRITE32(args->new_lock_owner); 892911d1aafSTrond Myklebust if (args->new_lock_owner){ 8939f958ab8STrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+32); 894911d1aafSTrond Myklebust WRITE32(args->open_seqid->sequence->counter); 8958ae20abdSTrond Myklebust WRITEMEM(args->open_stateid->data, NFS4_STATEID_SIZE); 896911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 897911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 8989f958ab8STrond Myklebust WRITE32(16); 8999f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 9009f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 9011da177e4SLinus Torvalds } 9021da177e4SLinus Torvalds else { 9038ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE+4); 9048ae20abdSTrond Myklebust WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE); 905911d1aafSTrond Myklebust WRITE32(args->lock_seqid->sequence->counter); 9061da177e4SLinus Torvalds } 9071da177e4SLinus Torvalds 9081da177e4SLinus Torvalds return 0; 9091da177e4SLinus Torvalds } 9101da177e4SLinus Torvalds 911911d1aafSTrond Myklebust static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args) 9121da177e4SLinus Torvalds { 9138687b63aSAl Viro __be32 *p; 9141da177e4SLinus Torvalds 9159f958ab8STrond Myklebust RESERVE_SPACE(52); 9161da177e4SLinus Torvalds WRITE32(OP_LOCKT); 917911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 918911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 919911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 920911d1aafSTrond Myklebust WRITE64(args->lock_owner.clientid); 9219f958ab8STrond Myklebust WRITE32(16); 9229f958ab8STrond Myklebust WRITEMEM("lock id:", 8); 9239f958ab8STrond Myklebust WRITE64(args->lock_owner.id); 9241da177e4SLinus Torvalds 9251da177e4SLinus Torvalds return 0; 9261da177e4SLinus Torvalds } 9271da177e4SLinus Torvalds 928911d1aafSTrond Myklebust static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args) 9291da177e4SLinus Torvalds { 9308687b63aSAl Viro __be32 *p; 9311da177e4SLinus Torvalds 9328ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_STATEID_SIZE+16); 9331da177e4SLinus Torvalds WRITE32(OP_LOCKU); 934911d1aafSTrond Myklebust WRITE32(nfs4_lock_type(args->fl, 0)); 935911d1aafSTrond Myklebust WRITE32(args->seqid->sequence->counter); 9368ae20abdSTrond Myklebust WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE); 937911d1aafSTrond Myklebust WRITE64(args->fl->fl_start); 938911d1aafSTrond Myklebust WRITE64(nfs4_lock_length(args->fl)); 9391da177e4SLinus Torvalds 9401da177e4SLinus Torvalds return 0; 9411da177e4SLinus Torvalds } 9421da177e4SLinus Torvalds 9431da177e4SLinus Torvalds static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name) 9441da177e4SLinus Torvalds { 9451da177e4SLinus Torvalds int len = name->len; 9468687b63aSAl Viro __be32 *p; 9471da177e4SLinus Torvalds 9481da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 9491da177e4SLinus Torvalds WRITE32(OP_LOOKUP); 9501da177e4SLinus Torvalds WRITE32(len); 9511da177e4SLinus Torvalds WRITEMEM(name->name, len); 9521da177e4SLinus Torvalds 9531da177e4SLinus Torvalds return 0; 9541da177e4SLinus Torvalds } 9551da177e4SLinus Torvalds 9561da177e4SLinus Torvalds static void encode_share_access(struct xdr_stream *xdr, int open_flags) 9571da177e4SLinus Torvalds { 9588687b63aSAl Viro __be32 *p; 9591da177e4SLinus Torvalds 9601da177e4SLinus Torvalds RESERVE_SPACE(8); 9611da177e4SLinus Torvalds switch (open_flags & (FMODE_READ|FMODE_WRITE)) { 9621da177e4SLinus Torvalds case FMODE_READ: 9631da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_READ); 9641da177e4SLinus Torvalds break; 9651da177e4SLinus Torvalds case FMODE_WRITE: 9661da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_WRITE); 9671da177e4SLinus Torvalds break; 9681da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 9691da177e4SLinus Torvalds WRITE32(NFS4_SHARE_ACCESS_BOTH); 9701da177e4SLinus Torvalds break; 9711da177e4SLinus Torvalds default: 9721da177e4SLinus Torvalds BUG(); 9731da177e4SLinus Torvalds } 9741da177e4SLinus Torvalds WRITE32(0); /* for linux, share_deny = 0 always */ 9751da177e4SLinus Torvalds } 9761da177e4SLinus Torvalds 9771da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9781da177e4SLinus Torvalds { 9798687b63aSAl Viro __be32 *p; 9801da177e4SLinus Torvalds /* 9811da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 9821da177e4SLinus Torvalds * owner 4 = 32 9831da177e4SLinus Torvalds */ 9841da177e4SLinus Torvalds RESERVE_SPACE(8); 9851da177e4SLinus Torvalds WRITE32(OP_OPEN); 986cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 9871da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 9889f958ab8STrond Myklebust RESERVE_SPACE(28); 9891da177e4SLinus Torvalds WRITE64(arg->clientid); 9909f958ab8STrond Myklebust WRITE32(16); 9919f958ab8STrond Myklebust WRITEMEM("open id:", 8); 9929f958ab8STrond Myklebust WRITE64(arg->id); 9931da177e4SLinus Torvalds } 9941da177e4SLinus Torvalds 9951da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 9961da177e4SLinus Torvalds { 9978687b63aSAl Viro __be32 *p; 9981da177e4SLinus Torvalds 9991da177e4SLinus Torvalds RESERVE_SPACE(4); 10001da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 10011da177e4SLinus Torvalds case 0: 10021da177e4SLinus Torvalds WRITE32(NFS4_CREATE_UNCHECKED); 10031da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 10041da177e4SLinus Torvalds break; 10051da177e4SLinus Torvalds default: 10061da177e4SLinus Torvalds WRITE32(NFS4_CREATE_EXCLUSIVE); 10071da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 10081da177e4SLinus Torvalds } 10091da177e4SLinus Torvalds } 10101da177e4SLinus Torvalds 10111da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 10121da177e4SLinus Torvalds { 10138687b63aSAl Viro __be32 *p; 10141da177e4SLinus Torvalds 10151da177e4SLinus Torvalds RESERVE_SPACE(4); 10161da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 10171da177e4SLinus Torvalds case 0: 10181da177e4SLinus Torvalds WRITE32(NFS4_OPEN_NOCREATE); 10191da177e4SLinus Torvalds break; 10201da177e4SLinus Torvalds default: 10211da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 10221da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CREATE); 10231da177e4SLinus Torvalds encode_createmode(xdr, arg); 10241da177e4SLinus Torvalds } 10251da177e4SLinus Torvalds } 10261da177e4SLinus Torvalds 10271da177e4SLinus Torvalds static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type) 10281da177e4SLinus Torvalds { 10298687b63aSAl Viro __be32 *p; 10301da177e4SLinus Torvalds 10311da177e4SLinus Torvalds RESERVE_SPACE(4); 10321da177e4SLinus Torvalds switch (delegation_type) { 10331da177e4SLinus Torvalds case 0: 10341da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_NONE); 10351da177e4SLinus Torvalds break; 10361da177e4SLinus Torvalds case FMODE_READ: 10371da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_READ); 10381da177e4SLinus Torvalds break; 10391da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 10401da177e4SLinus Torvalds WRITE32(NFS4_OPEN_DELEGATE_WRITE); 10411da177e4SLinus Torvalds break; 10421da177e4SLinus Torvalds default: 10431da177e4SLinus Torvalds BUG(); 10441da177e4SLinus Torvalds } 10451da177e4SLinus Torvalds } 10461da177e4SLinus Torvalds 10471da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 10481da177e4SLinus Torvalds { 10498687b63aSAl Viro __be32 *p; 10501da177e4SLinus Torvalds 10511da177e4SLinus Torvalds RESERVE_SPACE(4); 10521da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_NULL); 10531da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10541da177e4SLinus Torvalds } 10551da177e4SLinus Torvalds 10561da177e4SLinus Torvalds static inline void encode_claim_previous(struct xdr_stream *xdr, int type) 10571da177e4SLinus Torvalds { 10588687b63aSAl Viro __be32 *p; 10591da177e4SLinus Torvalds 10601da177e4SLinus Torvalds RESERVE_SPACE(4); 10611da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_PREVIOUS); 10621da177e4SLinus Torvalds encode_delegation_type(xdr, type); 10631da177e4SLinus Torvalds } 10641da177e4SLinus Torvalds 10651da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 10661da177e4SLinus Torvalds { 10678687b63aSAl Viro __be32 *p; 10681da177e4SLinus Torvalds 10698ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 10701da177e4SLinus Torvalds WRITE32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 10718ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 10721da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 10731da177e4SLinus Torvalds } 10741da177e4SLinus Torvalds 10751da177e4SLinus Torvalds static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg) 10761da177e4SLinus Torvalds { 10771da177e4SLinus Torvalds encode_openhdr(xdr, arg); 10781da177e4SLinus Torvalds encode_opentype(xdr, arg); 10791da177e4SLinus Torvalds switch (arg->claim) { 10801da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 10811da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 10821da177e4SLinus Torvalds break; 10831da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 10841da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 10851da177e4SLinus Torvalds break; 10861da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 10871da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 10881da177e4SLinus Torvalds break; 10891da177e4SLinus Torvalds default: 10901da177e4SLinus Torvalds BUG(); 10911da177e4SLinus Torvalds } 10921da177e4SLinus Torvalds return 0; 10931da177e4SLinus Torvalds } 10941da177e4SLinus Torvalds 10951da177e4SLinus Torvalds static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg) 10961da177e4SLinus Torvalds { 10978687b63aSAl Viro __be32 *p; 10981da177e4SLinus Torvalds 10998ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 11001da177e4SLinus Torvalds WRITE32(OP_OPEN_CONFIRM); 11018ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1102cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 11031da177e4SLinus Torvalds 11041da177e4SLinus Torvalds return 0; 11051da177e4SLinus Torvalds } 11061da177e4SLinus Torvalds 11071da177e4SLinus Torvalds static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg) 11081da177e4SLinus Torvalds { 11098687b63aSAl Viro __be32 *p; 11101da177e4SLinus Torvalds 11118ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE+4); 11121da177e4SLinus Torvalds WRITE32(OP_OPEN_DOWNGRADE); 11138ae20abdSTrond Myklebust WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE); 1114cee54fc9STrond Myklebust WRITE32(arg->seqid->sequence->counter); 11151da177e4SLinus Torvalds encode_share_access(xdr, arg->open_flags); 11161da177e4SLinus Torvalds return 0; 11171da177e4SLinus Torvalds } 11181da177e4SLinus Torvalds 11191da177e4SLinus Torvalds static int 11201da177e4SLinus Torvalds encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh) 11211da177e4SLinus Torvalds { 11221da177e4SLinus Torvalds int len = fh->size; 11238687b63aSAl Viro __be32 *p; 11241da177e4SLinus Torvalds 11251da177e4SLinus Torvalds RESERVE_SPACE(8 + len); 11261da177e4SLinus Torvalds WRITE32(OP_PUTFH); 11271da177e4SLinus Torvalds WRITE32(len); 11281da177e4SLinus Torvalds WRITEMEM(fh->data, len); 11291da177e4SLinus Torvalds 11301da177e4SLinus Torvalds return 0; 11311da177e4SLinus Torvalds } 11321da177e4SLinus Torvalds 11331da177e4SLinus Torvalds static int encode_putrootfh(struct xdr_stream *xdr) 11341da177e4SLinus Torvalds { 11358687b63aSAl Viro __be32 *p; 11361da177e4SLinus Torvalds 11371da177e4SLinus Torvalds RESERVE_SPACE(4); 11381da177e4SLinus Torvalds WRITE32(OP_PUTROOTFH); 11391da177e4SLinus Torvalds 11401da177e4SLinus Torvalds return 0; 11411da177e4SLinus Torvalds } 11421da177e4SLinus Torvalds 11431da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 11441da177e4SLinus Torvalds { 11451da177e4SLinus Torvalds nfs4_stateid stateid; 11468687b63aSAl Viro __be32 *p; 11471da177e4SLinus Torvalds 11488ae20abdSTrond Myklebust RESERVE_SPACE(NFS4_STATEID_SIZE); 11491da177e4SLinus Torvalds if (ctx->state != NULL) { 11501da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 11518ae20abdSTrond Myklebust WRITEMEM(stateid.data, NFS4_STATEID_SIZE); 11521da177e4SLinus Torvalds } else 11538ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 11541da177e4SLinus Torvalds } 11551da177e4SLinus Torvalds 11561da177e4SLinus Torvalds static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args) 11571da177e4SLinus Torvalds { 11588687b63aSAl Viro __be32 *p; 11591da177e4SLinus Torvalds 11601da177e4SLinus Torvalds RESERVE_SPACE(4); 11611da177e4SLinus Torvalds WRITE32(OP_READ); 11621da177e4SLinus Torvalds 11631da177e4SLinus Torvalds encode_stateid(xdr, args->context); 11641da177e4SLinus Torvalds 11651da177e4SLinus Torvalds RESERVE_SPACE(12); 11661da177e4SLinus Torvalds WRITE64(args->offset); 11671da177e4SLinus Torvalds WRITE32(args->count); 11681da177e4SLinus Torvalds 11691da177e4SLinus Torvalds return 0; 11701da177e4SLinus Torvalds } 11711da177e4SLinus Torvalds 11721da177e4SLinus Torvalds static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req) 11731da177e4SLinus Torvalds { 117497d312d0SManoj Naik uint32_t attrs[2] = { 117597d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 117697d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 117797d312d0SManoj Naik }; 11788687b63aSAl Viro __be32 *p; 11791da177e4SLinus Torvalds 11808ae20abdSTrond Myklebust RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20); 11811da177e4SLinus Torvalds WRITE32(OP_READDIR); 11821da177e4SLinus Torvalds WRITE64(readdir->cookie); 11838ae20abdSTrond Myklebust WRITEMEM(readdir->verifier.data, NFS4_VERIFIER_SIZE); 11841da177e4SLinus Torvalds WRITE32(readdir->count >> 1); /* We're not doing readdirplus */ 11851da177e4SLinus Torvalds WRITE32(readdir->count); 11861da177e4SLinus Torvalds WRITE32(2); 118797d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 118897d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 118997d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 119097d312d0SManoj Naik else 119197d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 119297d312d0SManoj Naik WRITE32(attrs[0] & readdir->bitmask[0]); 119397d312d0SManoj Naik WRITE32(attrs[1] & readdir->bitmask[1]); 1194eadf4598STrond Myklebust dprintk("%s: cookie = %Lu, verifier = 0x%x%x, bitmap = 0x%x%x\n", 1195eadf4598STrond Myklebust __FUNCTION__, 1196eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1197eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1198eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1199eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1200eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 12011da177e4SLinus Torvalds 12021da177e4SLinus Torvalds return 0; 12031da177e4SLinus Torvalds } 12041da177e4SLinus Torvalds 12051da177e4SLinus Torvalds static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req) 12061da177e4SLinus Torvalds { 12078687b63aSAl Viro __be32 *p; 12081da177e4SLinus Torvalds 12091da177e4SLinus Torvalds RESERVE_SPACE(4); 12101da177e4SLinus Torvalds WRITE32(OP_READLINK); 12111da177e4SLinus Torvalds 12121da177e4SLinus Torvalds return 0; 12131da177e4SLinus Torvalds } 12141da177e4SLinus Torvalds 12151da177e4SLinus Torvalds static int encode_remove(struct xdr_stream *xdr, const struct qstr *name) 12161da177e4SLinus Torvalds { 12178687b63aSAl Viro __be32 *p; 12181da177e4SLinus Torvalds 12191da177e4SLinus Torvalds RESERVE_SPACE(8 + name->len); 12201da177e4SLinus Torvalds WRITE32(OP_REMOVE); 12211da177e4SLinus Torvalds WRITE32(name->len); 12221da177e4SLinus Torvalds WRITEMEM(name->name, name->len); 12231da177e4SLinus Torvalds 12241da177e4SLinus Torvalds return 0; 12251da177e4SLinus Torvalds } 12261da177e4SLinus Torvalds 12271da177e4SLinus Torvalds static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname) 12281da177e4SLinus Torvalds { 12298687b63aSAl Viro __be32 *p; 12301da177e4SLinus Torvalds 12311da177e4SLinus Torvalds RESERVE_SPACE(8 + oldname->len); 12321da177e4SLinus Torvalds WRITE32(OP_RENAME); 12331da177e4SLinus Torvalds WRITE32(oldname->len); 12341da177e4SLinus Torvalds WRITEMEM(oldname->name, oldname->len); 12351da177e4SLinus Torvalds 12361da177e4SLinus Torvalds RESERVE_SPACE(4 + newname->len); 12371da177e4SLinus Torvalds WRITE32(newname->len); 12381da177e4SLinus Torvalds WRITEMEM(newname->name, newname->len); 12391da177e4SLinus Torvalds 12401da177e4SLinus Torvalds return 0; 12411da177e4SLinus Torvalds } 12421da177e4SLinus Torvalds 1243adfa6f98SDavid Howells static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid) 12441da177e4SLinus Torvalds { 12458687b63aSAl Viro __be32 *p; 12461da177e4SLinus Torvalds 12471da177e4SLinus Torvalds RESERVE_SPACE(12); 12481da177e4SLinus Torvalds WRITE32(OP_RENEW); 12491da177e4SLinus Torvalds WRITE64(client_stateid->cl_clientid); 12501da177e4SLinus Torvalds 12511da177e4SLinus Torvalds return 0; 12521da177e4SLinus Torvalds } 12531da177e4SLinus Torvalds 12541da177e4SLinus Torvalds static int 125556ae19f3STrond Myklebust encode_restorefh(struct xdr_stream *xdr) 125656ae19f3STrond Myklebust { 12578687b63aSAl Viro __be32 *p; 125856ae19f3STrond Myklebust 125956ae19f3STrond Myklebust RESERVE_SPACE(4); 126056ae19f3STrond Myklebust WRITE32(OP_RESTOREFH); 126156ae19f3STrond Myklebust 126256ae19f3STrond Myklebust return 0; 126356ae19f3STrond Myklebust } 126456ae19f3STrond Myklebust 126556ae19f3STrond Myklebust static int 126623ec6965SJ. Bruce Fields encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg) 126723ec6965SJ. Bruce Fields { 12688687b63aSAl Viro __be32 *p; 126923ec6965SJ. Bruce Fields 12708ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 127123ec6965SJ. Bruce Fields WRITE32(OP_SETATTR); 12728ae20abdSTrond Myklebust WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE); 127323ec6965SJ. Bruce Fields RESERVE_SPACE(2*4); 127423ec6965SJ. Bruce Fields WRITE32(1); 127523ec6965SJ. Bruce Fields WRITE32(FATTR4_WORD0_ACL); 127623ec6965SJ. Bruce Fields if (arg->acl_len % 4) 127723ec6965SJ. Bruce Fields return -EINVAL; 127823ec6965SJ. Bruce Fields RESERVE_SPACE(4); 127923ec6965SJ. Bruce Fields WRITE32(arg->acl_len); 128023ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 128123ec6965SJ. Bruce Fields return 0; 128223ec6965SJ. Bruce Fields } 128323ec6965SJ. Bruce Fields 128423ec6965SJ. Bruce Fields static int 12851da177e4SLinus Torvalds encode_savefh(struct xdr_stream *xdr) 12861da177e4SLinus Torvalds { 12878687b63aSAl Viro __be32 *p; 12881da177e4SLinus Torvalds 12891da177e4SLinus Torvalds RESERVE_SPACE(4); 12901da177e4SLinus Torvalds WRITE32(OP_SAVEFH); 12911da177e4SLinus Torvalds 12921da177e4SLinus Torvalds return 0; 12931da177e4SLinus Torvalds } 12941da177e4SLinus Torvalds 12951da177e4SLinus Torvalds static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server) 12961da177e4SLinus Torvalds { 12971da177e4SLinus Torvalds int status; 12988687b63aSAl Viro __be32 *p; 12991da177e4SLinus Torvalds 13008ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 13011da177e4SLinus Torvalds WRITE32(OP_SETATTR); 13028ae20abdSTrond Myklebust WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE); 13031da177e4SLinus Torvalds 13041da177e4SLinus Torvalds if ((status = encode_attrs(xdr, arg->iap, server))) 13051da177e4SLinus Torvalds return status; 13061da177e4SLinus Torvalds 13071da177e4SLinus Torvalds return 0; 13081da177e4SLinus Torvalds } 13091da177e4SLinus Torvalds 13101da177e4SLinus Torvalds static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid) 13111da177e4SLinus Torvalds { 13128687b63aSAl Viro __be32 *p; 13131da177e4SLinus Torvalds 13148ae20abdSTrond Myklebust RESERVE_SPACE(4 + NFS4_VERIFIER_SIZE); 13151da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID); 13168ae20abdSTrond Myklebust WRITEMEM(setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 13171da177e4SLinus Torvalds 13181da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 13191da177e4SLinus Torvalds RESERVE_SPACE(4); 13201da177e4SLinus Torvalds WRITE32(setclientid->sc_prog); 13211da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 13221da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 13231da177e4SLinus Torvalds RESERVE_SPACE(4); 13241da177e4SLinus Torvalds WRITE32(setclientid->sc_cb_ident); 13251da177e4SLinus Torvalds 13261da177e4SLinus Torvalds return 0; 13271da177e4SLinus Torvalds } 13281da177e4SLinus Torvalds 1329adfa6f98SDavid Howells static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state) 13301da177e4SLinus Torvalds { 13318687b63aSAl Viro __be32 *p; 13321da177e4SLinus Torvalds 13338ae20abdSTrond Myklebust RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE); 13341da177e4SLinus Torvalds WRITE32(OP_SETCLIENTID_CONFIRM); 13351da177e4SLinus Torvalds WRITE64(client_state->cl_clientid); 13368ae20abdSTrond Myklebust WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 13371da177e4SLinus Torvalds 13381da177e4SLinus Torvalds return 0; 13391da177e4SLinus Torvalds } 13401da177e4SLinus Torvalds 13411da177e4SLinus Torvalds static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args) 13421da177e4SLinus Torvalds { 13438687b63aSAl Viro __be32 *p; 13441da177e4SLinus Torvalds 13451da177e4SLinus Torvalds RESERVE_SPACE(4); 13461da177e4SLinus Torvalds WRITE32(OP_WRITE); 13471da177e4SLinus Torvalds 13481da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13491da177e4SLinus Torvalds 13501da177e4SLinus Torvalds RESERVE_SPACE(16); 13511da177e4SLinus Torvalds WRITE64(args->offset); 13521da177e4SLinus Torvalds WRITE32(args->stable); 13531da177e4SLinus Torvalds WRITE32(args->count); 13541da177e4SLinus Torvalds 13551da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 13561da177e4SLinus Torvalds 13571da177e4SLinus Torvalds return 0; 13581da177e4SLinus Torvalds } 13591da177e4SLinus Torvalds 13601da177e4SLinus Torvalds static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid) 13611da177e4SLinus Torvalds { 13628687b63aSAl Viro __be32 *p; 13631da177e4SLinus Torvalds 13648ae20abdSTrond Myklebust RESERVE_SPACE(4+NFS4_STATEID_SIZE); 13651da177e4SLinus Torvalds 13661da177e4SLinus Torvalds WRITE32(OP_DELEGRETURN); 13678ae20abdSTrond Myklebust WRITEMEM(stateid->data, NFS4_STATEID_SIZE); 13681da177e4SLinus Torvalds return 0; 13691da177e4SLinus Torvalds 13701da177e4SLinus Torvalds } 13711da177e4SLinus Torvalds /* 13721da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 13731da177e4SLinus Torvalds */ 13741da177e4SLinus Torvalds 13751da177e4SLinus Torvalds /* 13761da177e4SLinus Torvalds * Encode an ACCESS request 13771da177e4SLinus Torvalds */ 13788687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 13791da177e4SLinus Torvalds { 13801da177e4SLinus Torvalds struct xdr_stream xdr; 13811da177e4SLinus Torvalds struct compound_hdr hdr = { 138276b32999STrond Myklebust .nops = 3, 13831da177e4SLinus Torvalds }; 13841da177e4SLinus Torvalds int status; 13851da177e4SLinus Torvalds 13861da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 13871da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 138876b32999STrond Myklebust status = encode_putfh(&xdr, args->fh); 138976b32999STrond Myklebust if (status != 0) 139076b32999STrond Myklebust goto out; 13911da177e4SLinus Torvalds status = encode_access(&xdr, args->access); 139276b32999STrond Myklebust if (status != 0) 139376b32999STrond Myklebust goto out; 139476b32999STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 139576b32999STrond Myklebust out: 13961da177e4SLinus Torvalds return status; 13971da177e4SLinus Torvalds } 13981da177e4SLinus Torvalds 13991da177e4SLinus Torvalds /* 14001da177e4SLinus Torvalds * Encode LOOKUP request 14011da177e4SLinus Torvalds */ 14028687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 14031da177e4SLinus Torvalds { 14041da177e4SLinus Torvalds struct xdr_stream xdr; 14051da177e4SLinus Torvalds struct compound_hdr hdr = { 14061da177e4SLinus Torvalds .nops = 4, 14071da177e4SLinus Torvalds }; 14081da177e4SLinus Torvalds int status; 14091da177e4SLinus Torvalds 14101da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14111da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14121da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 14131da177e4SLinus Torvalds goto out; 14141da177e4SLinus Torvalds if ((status = encode_lookup(&xdr, args->name)) != 0) 14151da177e4SLinus Torvalds goto out; 14161da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 14171da177e4SLinus Torvalds goto out; 14181da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14191da177e4SLinus Torvalds out: 14201da177e4SLinus Torvalds return status; 14211da177e4SLinus Torvalds } 14221da177e4SLinus Torvalds 14231da177e4SLinus Torvalds /* 14241da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 14251da177e4SLinus Torvalds */ 14268687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 14271da177e4SLinus Torvalds { 14281da177e4SLinus Torvalds struct xdr_stream xdr; 14291da177e4SLinus Torvalds struct compound_hdr hdr = { 14301da177e4SLinus Torvalds .nops = 3, 14311da177e4SLinus Torvalds }; 14321da177e4SLinus Torvalds int status; 14331da177e4SLinus Torvalds 14341da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14351da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14361da177e4SLinus Torvalds if ((status = encode_putrootfh(&xdr)) != 0) 14371da177e4SLinus Torvalds goto out; 14381da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) == 0) 14391da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 14401da177e4SLinus Torvalds out: 14411da177e4SLinus Torvalds return status; 14421da177e4SLinus Torvalds } 14431da177e4SLinus Torvalds 14441da177e4SLinus Torvalds /* 14451da177e4SLinus Torvalds * Encode REMOVE request 14461da177e4SLinus Torvalds */ 14474fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 14481da177e4SLinus Torvalds { 14491da177e4SLinus Torvalds struct xdr_stream xdr; 14501da177e4SLinus Torvalds struct compound_hdr hdr = { 145116e42959STrond Myklebust .nops = 3, 14521da177e4SLinus Torvalds }; 14531da177e4SLinus Torvalds int status; 14541da177e4SLinus Torvalds 14551da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14561da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 145716e42959STrond Myklebust if ((status = encode_putfh(&xdr, args->fh)) != 0) 145816e42959STrond Myklebust goto out; 14594fdc17b2STrond Myklebust if ((status = encode_remove(&xdr, &args->name)) != 0) 146016e42959STrond Myklebust goto out; 146116e42959STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 146216e42959STrond Myklebust out: 14631da177e4SLinus Torvalds return status; 14641da177e4SLinus Torvalds } 14651da177e4SLinus Torvalds 14661da177e4SLinus Torvalds /* 14671da177e4SLinus Torvalds * Encode RENAME request 14681da177e4SLinus Torvalds */ 14698687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 14701da177e4SLinus Torvalds { 14711da177e4SLinus Torvalds struct xdr_stream xdr; 14721da177e4SLinus Torvalds struct compound_hdr hdr = { 14736caf2c82STrond Myklebust .nops = 7, 14741da177e4SLinus Torvalds }; 14751da177e4SLinus Torvalds int status; 14761da177e4SLinus Torvalds 14771da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 14781da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 14791da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->old_dir)) != 0) 14801da177e4SLinus Torvalds goto out; 14811da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 14821da177e4SLinus Torvalds goto out; 14831da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->new_dir)) != 0) 14841da177e4SLinus Torvalds goto out; 14856caf2c82STrond Myklebust if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0) 14866caf2c82STrond Myklebust goto out; 14876caf2c82STrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 14886caf2c82STrond Myklebust goto out; 14896caf2c82STrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 14906caf2c82STrond Myklebust goto out; 14916caf2c82STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 14921da177e4SLinus Torvalds out: 14931da177e4SLinus Torvalds return status; 14941da177e4SLinus Torvalds } 14951da177e4SLinus Torvalds 14961da177e4SLinus Torvalds /* 14971da177e4SLinus Torvalds * Encode LINK request 14981da177e4SLinus Torvalds */ 14998687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 15001da177e4SLinus Torvalds { 15011da177e4SLinus Torvalds struct xdr_stream xdr; 15021da177e4SLinus Torvalds struct compound_hdr hdr = { 150391ba2eeeSTrond Myklebust .nops = 7, 15041da177e4SLinus Torvalds }; 15051da177e4SLinus Torvalds int status; 15061da177e4SLinus Torvalds 15071da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15081da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15091da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) != 0) 15101da177e4SLinus Torvalds goto out; 15111da177e4SLinus Torvalds if ((status = encode_savefh(&xdr)) != 0) 15121da177e4SLinus Torvalds goto out; 15131da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 15141da177e4SLinus Torvalds goto out; 151591ba2eeeSTrond Myklebust if ((status = encode_link(&xdr, args->name)) != 0) 151691ba2eeeSTrond Myklebust goto out; 151791ba2eeeSTrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 151891ba2eeeSTrond Myklebust goto out; 151991ba2eeeSTrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 152091ba2eeeSTrond Myklebust goto out; 152191ba2eeeSTrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 15221da177e4SLinus Torvalds out: 15231da177e4SLinus Torvalds return status; 15241da177e4SLinus Torvalds } 15251da177e4SLinus Torvalds 15261da177e4SLinus Torvalds /* 15271da177e4SLinus Torvalds * Encode CREATE request 15281da177e4SLinus Torvalds */ 15298687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 15301da177e4SLinus Torvalds { 15311da177e4SLinus Torvalds struct xdr_stream xdr; 15321da177e4SLinus Torvalds struct compound_hdr hdr = { 153356ae19f3STrond Myklebust .nops = 7, 15341da177e4SLinus Torvalds }; 15351da177e4SLinus Torvalds int status; 15361da177e4SLinus Torvalds 15371da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15381da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15391da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 15401da177e4SLinus Torvalds goto out; 154156ae19f3STrond Myklebust if ((status = encode_savefh(&xdr)) != 0) 154256ae19f3STrond Myklebust goto out; 15431da177e4SLinus Torvalds if ((status = encode_create(&xdr, args)) != 0) 15441da177e4SLinus Torvalds goto out; 15451da177e4SLinus Torvalds if ((status = encode_getfh(&xdr)) != 0) 15461da177e4SLinus Torvalds goto out; 154756ae19f3STrond Myklebust if ((status = encode_getfattr(&xdr, args->bitmask)) != 0) 154856ae19f3STrond Myklebust goto out; 154956ae19f3STrond Myklebust if ((status = encode_restorefh(&xdr)) != 0) 155056ae19f3STrond Myklebust goto out; 15511da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 15521da177e4SLinus Torvalds out: 15531da177e4SLinus Torvalds return status; 15541da177e4SLinus Torvalds } 15551da177e4SLinus Torvalds 15561da177e4SLinus Torvalds /* 15571da177e4SLinus Torvalds * Encode SYMLINK request 15581da177e4SLinus Torvalds */ 15598687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 15601da177e4SLinus Torvalds { 15611da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 15621da177e4SLinus Torvalds } 15631da177e4SLinus Torvalds 15641da177e4SLinus Torvalds /* 15651da177e4SLinus Torvalds * Encode GETATTR request 15661da177e4SLinus Torvalds */ 15678687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 15681da177e4SLinus Torvalds { 15691da177e4SLinus Torvalds struct xdr_stream xdr; 15701da177e4SLinus Torvalds struct compound_hdr hdr = { 15711da177e4SLinus Torvalds .nops = 2, 15721da177e4SLinus Torvalds }; 15731da177e4SLinus Torvalds int status; 15741da177e4SLinus Torvalds 15751da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15761da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15771da177e4SLinus Torvalds if ((status = encode_putfh(&xdr, args->fh)) == 0) 15781da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 15791da177e4SLinus Torvalds return status; 15801da177e4SLinus Torvalds } 15811da177e4SLinus Torvalds 15821da177e4SLinus Torvalds /* 15831da177e4SLinus Torvalds * Encode a CLOSE request 15841da177e4SLinus Torvalds */ 15858687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 15861da177e4SLinus Torvalds { 15871da177e4SLinus Torvalds struct xdr_stream xdr; 15881da177e4SLinus Torvalds struct compound_hdr hdr = { 1589516a6af6STrond Myklebust .nops = 3, 15901da177e4SLinus Torvalds }; 15911da177e4SLinus Torvalds int status; 15921da177e4SLinus Torvalds 15931da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 15941da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 15951da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 15961da177e4SLinus Torvalds if(status) 15971da177e4SLinus Torvalds goto out; 15981da177e4SLinus Torvalds status = encode_close(&xdr, args); 1599516a6af6STrond Myklebust if (status != 0) 1600516a6af6STrond Myklebust goto out; 1601516a6af6STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 16021da177e4SLinus Torvalds out: 16031da177e4SLinus Torvalds return status; 16041da177e4SLinus Torvalds } 16051da177e4SLinus Torvalds 16061da177e4SLinus Torvalds /* 16071da177e4SLinus Torvalds * Encode an OPEN request 16081da177e4SLinus Torvalds */ 16098687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 16101da177e4SLinus Torvalds { 16111da177e4SLinus Torvalds struct xdr_stream xdr; 16121da177e4SLinus Torvalds struct compound_hdr hdr = { 161356ae19f3STrond Myklebust .nops = 7, 16141da177e4SLinus Torvalds }; 16151da177e4SLinus Torvalds int status; 16161da177e4SLinus Torvalds 16171da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16181da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16191da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16201da177e4SLinus Torvalds if (status) 16211da177e4SLinus Torvalds goto out; 162256ae19f3STrond Myklebust status = encode_savefh(&xdr); 162356ae19f3STrond Myklebust if (status) 162456ae19f3STrond Myklebust goto out; 16251da177e4SLinus Torvalds status = encode_open(&xdr, args); 16261da177e4SLinus Torvalds if (status) 16271da177e4SLinus Torvalds goto out; 16281da177e4SLinus Torvalds status = encode_getfh(&xdr); 16291da177e4SLinus Torvalds if (status) 16301da177e4SLinus Torvalds goto out; 16311da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 163256ae19f3STrond Myklebust if (status) 163356ae19f3STrond Myklebust goto out; 163456ae19f3STrond Myklebust status = encode_restorefh(&xdr); 163556ae19f3STrond Myklebust if (status) 163656ae19f3STrond Myklebust goto out; 163756ae19f3STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 16381da177e4SLinus Torvalds out: 16391da177e4SLinus Torvalds return status; 16401da177e4SLinus Torvalds } 16411da177e4SLinus Torvalds 16421da177e4SLinus Torvalds /* 16431da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 16441da177e4SLinus Torvalds */ 16458687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 16461da177e4SLinus Torvalds { 16471da177e4SLinus Torvalds struct xdr_stream xdr; 16481da177e4SLinus Torvalds struct compound_hdr hdr = { 16491da177e4SLinus Torvalds .nops = 2, 16501da177e4SLinus Torvalds }; 16511da177e4SLinus Torvalds int status; 16521da177e4SLinus Torvalds 16531da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16541da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16551da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16561da177e4SLinus Torvalds if(status) 16571da177e4SLinus Torvalds goto out; 16581da177e4SLinus Torvalds status = encode_open_confirm(&xdr, args); 16591da177e4SLinus Torvalds out: 16601da177e4SLinus Torvalds return status; 16611da177e4SLinus Torvalds } 16621da177e4SLinus Torvalds 16631da177e4SLinus Torvalds /* 16641da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 16651da177e4SLinus Torvalds */ 16668687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 16671da177e4SLinus Torvalds { 16681da177e4SLinus Torvalds struct xdr_stream xdr; 16691da177e4SLinus Torvalds struct compound_hdr hdr = { 1670864472e9STrond Myklebust .nops = 3, 16711da177e4SLinus Torvalds }; 16721da177e4SLinus Torvalds int status; 16731da177e4SLinus Torvalds 16741da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16751da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 16761da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 16771da177e4SLinus Torvalds if (status) 16781da177e4SLinus Torvalds goto out; 16791da177e4SLinus Torvalds status = encode_open(&xdr, args); 1680864472e9STrond Myklebust if (status) 1681864472e9STrond Myklebust goto out; 1682864472e9STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 16831da177e4SLinus Torvalds out: 16841da177e4SLinus Torvalds return status; 16851da177e4SLinus Torvalds } 16861da177e4SLinus Torvalds 16871da177e4SLinus Torvalds /* 16881da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 16891da177e4SLinus Torvalds */ 16908687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 16911da177e4SLinus Torvalds { 16921da177e4SLinus Torvalds struct xdr_stream xdr; 16931da177e4SLinus Torvalds struct compound_hdr hdr = { 1694516a6af6STrond Myklebust .nops = 3, 16951da177e4SLinus Torvalds }; 16961da177e4SLinus Torvalds int status; 16971da177e4SLinus Torvalds 16981da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 16991da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17001da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17011da177e4SLinus Torvalds if (status) 17021da177e4SLinus Torvalds goto out; 17031da177e4SLinus Torvalds status = encode_open_downgrade(&xdr, args); 1704516a6af6STrond Myklebust if (status != 0) 1705516a6af6STrond Myklebust goto out; 1706516a6af6STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 17071da177e4SLinus Torvalds out: 17081da177e4SLinus Torvalds return status; 17091da177e4SLinus Torvalds } 17101da177e4SLinus Torvalds 17111da177e4SLinus Torvalds /* 17121da177e4SLinus Torvalds * Encode a LOCK request 17131da177e4SLinus Torvalds */ 17148687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 17151da177e4SLinus Torvalds { 17161da177e4SLinus Torvalds struct xdr_stream xdr; 17171da177e4SLinus Torvalds struct compound_hdr hdr = { 17181da177e4SLinus Torvalds .nops = 2, 17191da177e4SLinus Torvalds }; 17201da177e4SLinus Torvalds int status; 17211da177e4SLinus Torvalds 17221da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17231da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17241da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17251da177e4SLinus Torvalds if(status) 17261da177e4SLinus Torvalds goto out; 17271da177e4SLinus Torvalds status = encode_lock(&xdr, args); 17281da177e4SLinus Torvalds out: 17291da177e4SLinus Torvalds return status; 17301da177e4SLinus Torvalds } 17311da177e4SLinus Torvalds 17321da177e4SLinus Torvalds /* 17331da177e4SLinus Torvalds * Encode a LOCKT request 17341da177e4SLinus Torvalds */ 17358687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 17361da177e4SLinus Torvalds { 17371da177e4SLinus Torvalds struct xdr_stream xdr; 17381da177e4SLinus Torvalds struct compound_hdr hdr = { 17391da177e4SLinus Torvalds .nops = 2, 17401da177e4SLinus Torvalds }; 17411da177e4SLinus Torvalds int status; 17421da177e4SLinus Torvalds 17431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17441da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17451da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17461da177e4SLinus Torvalds if(status) 17471da177e4SLinus Torvalds goto out; 17481da177e4SLinus Torvalds status = encode_lockt(&xdr, args); 17491da177e4SLinus Torvalds out: 17501da177e4SLinus Torvalds return status; 17511da177e4SLinus Torvalds } 17521da177e4SLinus Torvalds 17531da177e4SLinus Torvalds /* 17541da177e4SLinus Torvalds * Encode a LOCKU request 17551da177e4SLinus Torvalds */ 17568687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 17571da177e4SLinus Torvalds { 17581da177e4SLinus Torvalds struct xdr_stream xdr; 17591da177e4SLinus Torvalds struct compound_hdr hdr = { 17601da177e4SLinus Torvalds .nops = 2, 17611da177e4SLinus Torvalds }; 17621da177e4SLinus Torvalds int status; 17631da177e4SLinus Torvalds 17641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17651da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17661da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17671da177e4SLinus Torvalds if(status) 17681da177e4SLinus Torvalds goto out; 17691da177e4SLinus Torvalds status = encode_locku(&xdr, args); 17701da177e4SLinus Torvalds out: 17711da177e4SLinus Torvalds return status; 17721da177e4SLinus Torvalds } 17731da177e4SLinus Torvalds 17741da177e4SLinus Torvalds /* 17751da177e4SLinus Torvalds * Encode a READLINK request 17761da177e4SLinus Torvalds */ 17778687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 17781da177e4SLinus Torvalds { 17791da177e4SLinus Torvalds struct xdr_stream xdr; 17801da177e4SLinus Torvalds struct compound_hdr hdr = { 17811da177e4SLinus Torvalds .nops = 2, 17821da177e4SLinus Torvalds }; 1783e3a535e1STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1784e3a535e1STrond Myklebust unsigned int replen; 17851da177e4SLinus Torvalds int status; 17861da177e4SLinus Torvalds 17871da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17881da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 17891da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 17901da177e4SLinus Torvalds if(status) 17911da177e4SLinus Torvalds goto out; 17921da177e4SLinus Torvalds status = encode_readlink(&xdr, args, req); 1793e3a535e1STrond Myklebust 1794e3a535e1STrond Myklebust /* set up reply kvec 1795e3a535e1STrond Myklebust * toplevel_status + taglen + rescount + OP_PUTFH + status 1796e3a535e1STrond Myklebust * + OP_READLINK + status + string length = 8 1797e3a535e1STrond Myklebust */ 1798e3a535e1STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2; 1799e3a535e1STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 1800e3a535e1STrond Myklebust args->pgbase, args->pglen); 1801e3a535e1STrond Myklebust 18021da177e4SLinus Torvalds out: 18031da177e4SLinus Torvalds return status; 18041da177e4SLinus Torvalds } 18051da177e4SLinus Torvalds 18061da177e4SLinus Torvalds /* 18071da177e4SLinus Torvalds * Encode a READDIR request 18081da177e4SLinus Torvalds */ 18098687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 18101da177e4SLinus Torvalds { 18111da177e4SLinus Torvalds struct xdr_stream xdr; 18121da177e4SLinus Torvalds struct compound_hdr hdr = { 18131da177e4SLinus Torvalds .nops = 2, 18141da177e4SLinus Torvalds }; 1815d6ac02dfSTrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1816d6ac02dfSTrond Myklebust int replen; 18171da177e4SLinus Torvalds int status; 18181da177e4SLinus Torvalds 18191da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18201da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18211da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18221da177e4SLinus Torvalds if(status) 18231da177e4SLinus Torvalds goto out; 18241da177e4SLinus Torvalds status = encode_readdir(&xdr, args, req); 1825d6ac02dfSTrond Myklebust 1826d6ac02dfSTrond Myklebust /* set up reply kvec 1827d6ac02dfSTrond Myklebust * toplevel_status + taglen + rescount + OP_PUTFH + status 1828d6ac02dfSTrond Myklebust * + OP_READDIR + status + verifer(2) = 9 1829d6ac02dfSTrond Myklebust */ 1830d6ac02dfSTrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2; 1831d6ac02dfSTrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages, 1832d6ac02dfSTrond Myklebust args->pgbase, args->count); 1833d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 1834d6ac02dfSTrond Myklebust __FUNCTION__, replen, args->pages, 1835d6ac02dfSTrond Myklebust args->pgbase, args->count); 1836d6ac02dfSTrond Myklebust 18371da177e4SLinus Torvalds out: 18381da177e4SLinus Torvalds return status; 18391da177e4SLinus Torvalds } 18401da177e4SLinus Torvalds 18411da177e4SLinus Torvalds /* 18421da177e4SLinus Torvalds * Encode a READ request 18431da177e4SLinus Torvalds */ 18448687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 18451da177e4SLinus Torvalds { 18461be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 18471da177e4SLinus Torvalds struct xdr_stream xdr; 18481da177e4SLinus Torvalds struct compound_hdr hdr = { 18491da177e4SLinus Torvalds .nops = 2, 18501da177e4SLinus Torvalds }; 18511da177e4SLinus Torvalds int replen, status; 18521da177e4SLinus Torvalds 18531da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18541da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18551da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18561da177e4SLinus Torvalds if (status) 18571da177e4SLinus Torvalds goto out; 18581da177e4SLinus Torvalds status = encode_read(&xdr, args); 18591da177e4SLinus Torvalds if (status) 18601da177e4SLinus Torvalds goto out; 18611da177e4SLinus Torvalds 18621da177e4SLinus Torvalds /* set up reply kvec 18631da177e4SLinus Torvalds * toplevel status + taglen=0 + rescount + OP_PUTFH + status 18641da177e4SLinus Torvalds * + OP_READ + status + eof + datalen = 9 18651da177e4SLinus Torvalds */ 18661da177e4SLinus Torvalds replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2; 18671da177e4SLinus Torvalds xdr_inline_pages(&req->rq_rcv_buf, replen, 18681da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 18694f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 18701da177e4SLinus Torvalds out: 18711da177e4SLinus Torvalds return status; 18721da177e4SLinus Torvalds } 18731da177e4SLinus Torvalds 18741da177e4SLinus Torvalds /* 18751da177e4SLinus Torvalds * Encode an SETATTR request 18761da177e4SLinus Torvalds */ 18778687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 18781da177e4SLinus Torvalds 18791da177e4SLinus Torvalds { 18801da177e4SLinus Torvalds struct xdr_stream xdr; 18811da177e4SLinus Torvalds struct compound_hdr hdr = { 18821da177e4SLinus Torvalds .nops = 3, 18831da177e4SLinus Torvalds }; 18841da177e4SLinus Torvalds int status; 18851da177e4SLinus Torvalds 18861da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18871da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 18881da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 18891da177e4SLinus Torvalds if(status) 18901da177e4SLinus Torvalds goto out; 18911da177e4SLinus Torvalds status = encode_setattr(&xdr, args, args->server); 18921da177e4SLinus Torvalds if(status) 18931da177e4SLinus Torvalds goto out; 18941da177e4SLinus Torvalds status = encode_getfattr(&xdr, args->bitmask); 18951da177e4SLinus Torvalds out: 18961da177e4SLinus Torvalds return status; 18971da177e4SLinus Torvalds } 18981da177e4SLinus Torvalds 18991da177e4SLinus Torvalds /* 1900029d105eSJ. Bruce Fields * Encode a GETACL request 1901029d105eSJ. Bruce Fields */ 1902029d105eSJ. Bruce Fields static int 19038687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 1904029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 1905029d105eSJ. Bruce Fields { 1906029d105eSJ. Bruce Fields struct xdr_stream xdr; 19071be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 1908029d105eSJ. Bruce Fields struct compound_hdr hdr = { 1909029d105eSJ. Bruce Fields .nops = 2, 1910029d105eSJ. Bruce Fields }; 1911029d105eSJ. Bruce Fields int replen, status; 1912029d105eSJ. Bruce Fields 1913029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 1914029d105eSJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 1915029d105eSJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 1916029d105eSJ. Bruce Fields if (status) 1917029d105eSJ. Bruce Fields goto out; 1918029d105eSJ. Bruce Fields status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0); 1919029d105eSJ. Bruce Fields /* set up reply buffer: */ 1920029d105eSJ. Bruce Fields replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2; 1921029d105eSJ. Bruce Fields xdr_inline_pages(&req->rq_rcv_buf, replen, 1922029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 1923029d105eSJ. Bruce Fields out: 1924029d105eSJ. Bruce Fields return status; 1925029d105eSJ. Bruce Fields } 1926029d105eSJ. Bruce Fields 1927029d105eSJ. Bruce Fields /* 19281da177e4SLinus Torvalds * Encode a WRITE request 19291da177e4SLinus Torvalds */ 19308687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 19311da177e4SLinus Torvalds { 19321da177e4SLinus Torvalds struct xdr_stream xdr; 19331da177e4SLinus Torvalds struct compound_hdr hdr = { 19344f9838c7STrond Myklebust .nops = 3, 19351da177e4SLinus Torvalds }; 19361da177e4SLinus Torvalds int status; 19371da177e4SLinus Torvalds 19381da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19391da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19401da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19411da177e4SLinus Torvalds if (status) 19421da177e4SLinus Torvalds goto out; 19431da177e4SLinus Torvalds status = encode_write(&xdr, args); 19444f9838c7STrond Myklebust if (status) 19454f9838c7STrond Myklebust goto out; 19464f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 19474f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 19481da177e4SLinus Torvalds out: 19491da177e4SLinus Torvalds return status; 19501da177e4SLinus Torvalds } 19511da177e4SLinus Torvalds 19521da177e4SLinus Torvalds /* 19531da177e4SLinus Torvalds * a COMMIT request 19541da177e4SLinus Torvalds */ 19558687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 19561da177e4SLinus Torvalds { 19571da177e4SLinus Torvalds struct xdr_stream xdr; 19581da177e4SLinus Torvalds struct compound_hdr hdr = { 19594f9838c7STrond Myklebust .nops = 3, 19601da177e4SLinus Torvalds }; 19611da177e4SLinus Torvalds int status; 19621da177e4SLinus Torvalds 19631da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19641da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19651da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19661da177e4SLinus Torvalds if (status) 19671da177e4SLinus Torvalds goto out; 19681da177e4SLinus Torvalds status = encode_commit(&xdr, args); 19694f9838c7STrond Myklebust if (status) 19704f9838c7STrond Myklebust goto out; 19714f9838c7STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 19721da177e4SLinus Torvalds out: 19731da177e4SLinus Torvalds return status; 19741da177e4SLinus Torvalds } 19751da177e4SLinus Torvalds 19761da177e4SLinus Torvalds /* 19771da177e4SLinus Torvalds * FSINFO request 19781da177e4SLinus Torvalds */ 19798687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 19801da177e4SLinus Torvalds { 19811da177e4SLinus Torvalds struct xdr_stream xdr; 19821da177e4SLinus Torvalds struct compound_hdr hdr = { 19831da177e4SLinus Torvalds .nops = 2, 19841da177e4SLinus Torvalds }; 19851da177e4SLinus Torvalds int status; 19861da177e4SLinus Torvalds 19871da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19881da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 19891da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 19901da177e4SLinus Torvalds if (!status) 19911da177e4SLinus Torvalds status = encode_fsinfo(&xdr, args->bitmask); 19921da177e4SLinus Torvalds return status; 19931da177e4SLinus Torvalds } 19941da177e4SLinus Torvalds 19951da177e4SLinus Torvalds /* 19961da177e4SLinus Torvalds * a PATHCONF request 19971da177e4SLinus Torvalds */ 19988687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 19991da177e4SLinus Torvalds { 20001da177e4SLinus Torvalds struct xdr_stream xdr; 20011da177e4SLinus Torvalds struct compound_hdr hdr = { 20021da177e4SLinus Torvalds .nops = 2, 20031da177e4SLinus Torvalds }; 20041da177e4SLinus Torvalds int status; 20051da177e4SLinus Torvalds 20061da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20071da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20081da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 20091da177e4SLinus Torvalds if (!status) 20101da177e4SLinus Torvalds status = encode_getattr_one(&xdr, 20111da177e4SLinus Torvalds args->bitmask[0] & nfs4_pathconf_bitmap[0]); 20121da177e4SLinus Torvalds return status; 20131da177e4SLinus Torvalds } 20141da177e4SLinus Torvalds 20151da177e4SLinus Torvalds /* 20161da177e4SLinus Torvalds * a STATFS request 20171da177e4SLinus Torvalds */ 20188687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 20191da177e4SLinus Torvalds { 20201da177e4SLinus Torvalds struct xdr_stream xdr; 20211da177e4SLinus Torvalds struct compound_hdr hdr = { 20221da177e4SLinus Torvalds .nops = 2, 20231da177e4SLinus Torvalds }; 20241da177e4SLinus Torvalds int status; 20251da177e4SLinus Torvalds 20261da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20271da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20281da177e4SLinus Torvalds status = encode_putfh(&xdr, args->fh); 20291da177e4SLinus Torvalds if (status == 0) 20301da177e4SLinus Torvalds status = encode_getattr_two(&xdr, 20311da177e4SLinus Torvalds args->bitmask[0] & nfs4_statfs_bitmap[0], 20321da177e4SLinus Torvalds args->bitmask[1] & nfs4_statfs_bitmap[1]); 20331da177e4SLinus Torvalds return status; 20341da177e4SLinus Torvalds } 20351da177e4SLinus Torvalds 20361da177e4SLinus Torvalds /* 20371da177e4SLinus Torvalds * GETATTR_BITMAP request 20381da177e4SLinus Torvalds */ 20398687b63aSAl Viro static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, const struct nfs_fh *fhandle) 20401da177e4SLinus Torvalds { 20411da177e4SLinus Torvalds struct xdr_stream xdr; 20421da177e4SLinus Torvalds struct compound_hdr hdr = { 20431da177e4SLinus Torvalds .nops = 2, 20441da177e4SLinus Torvalds }; 20451da177e4SLinus Torvalds int status; 20461da177e4SLinus Torvalds 20471da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20481da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20491da177e4SLinus Torvalds status = encode_putfh(&xdr, fhandle); 20501da177e4SLinus Torvalds if (status == 0) 20511da177e4SLinus Torvalds status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 20521da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 20531da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 20541da177e4SLinus Torvalds FATTR4_WORD0_ACLSUPPORT); 20551da177e4SLinus Torvalds return status; 20561da177e4SLinus Torvalds } 20571da177e4SLinus Torvalds 20581da177e4SLinus Torvalds /* 20591da177e4SLinus Torvalds * a RENEW request 20601da177e4SLinus Torvalds */ 20618687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 20621da177e4SLinus Torvalds { 20631da177e4SLinus Torvalds struct xdr_stream xdr; 20641da177e4SLinus Torvalds struct compound_hdr hdr = { 20651da177e4SLinus Torvalds .nops = 1, 20661da177e4SLinus Torvalds }; 20671da177e4SLinus Torvalds 20681da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20691da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20701da177e4SLinus Torvalds return encode_renew(&xdr, clp); 20711da177e4SLinus Torvalds } 20721da177e4SLinus Torvalds 20731da177e4SLinus Torvalds /* 20741da177e4SLinus Torvalds * a SETCLIENTID request 20751da177e4SLinus Torvalds */ 20768687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 20771da177e4SLinus Torvalds { 20781da177e4SLinus Torvalds struct xdr_stream xdr; 20791da177e4SLinus Torvalds struct compound_hdr hdr = { 20801da177e4SLinus Torvalds .nops = 1, 20811da177e4SLinus Torvalds }; 20821da177e4SLinus Torvalds 20831da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20841da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 20851da177e4SLinus Torvalds return encode_setclientid(&xdr, sc); 20861da177e4SLinus Torvalds } 20871da177e4SLinus Torvalds 20881da177e4SLinus Torvalds /* 20891da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 20901da177e4SLinus Torvalds */ 20918687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 20921da177e4SLinus Torvalds { 20931da177e4SLinus Torvalds struct xdr_stream xdr; 20941da177e4SLinus Torvalds struct compound_hdr hdr = { 20951da177e4SLinus Torvalds .nops = 3, 20961da177e4SLinus Torvalds }; 20971da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 20981da177e4SLinus Torvalds int status; 20991da177e4SLinus Torvalds 21001da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21011da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 21021da177e4SLinus Torvalds status = encode_setclientid_confirm(&xdr, clp); 21031da177e4SLinus Torvalds if (!status) 21041da177e4SLinus Torvalds status = encode_putrootfh(&xdr); 21051da177e4SLinus Torvalds if (!status) 21061da177e4SLinus Torvalds status = encode_fsinfo(&xdr, lease_bitmap); 21071da177e4SLinus Torvalds return status; 21081da177e4SLinus Torvalds } 21091da177e4SLinus Torvalds 21101da177e4SLinus Torvalds /* 21111da177e4SLinus Torvalds * DELEGRETURN request 21121da177e4SLinus Torvalds */ 21138687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 21141da177e4SLinus Torvalds { 21151da177e4SLinus Torvalds struct xdr_stream xdr; 21161da177e4SLinus Torvalds struct compound_hdr hdr = { 2117fa178f29STrond Myklebust .nops = 3, 21181da177e4SLinus Torvalds }; 21191da177e4SLinus Torvalds int status; 21201da177e4SLinus Torvalds 21211da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21221da177e4SLinus Torvalds encode_compound_hdr(&xdr, &hdr); 2123fa178f29STrond Myklebust status = encode_putfh(&xdr, args->fhandle); 2124fa178f29STrond Myklebust if (status != 0) 2125fa178f29STrond Myklebust goto out; 21261da177e4SLinus Torvalds status = encode_delegreturn(&xdr, args->stateid); 2127fa178f29STrond Myklebust if (status != 0) 2128fa178f29STrond Myklebust goto out; 2129fa178f29STrond Myklebust status = encode_getfattr(&xdr, args->bitmask); 2130fa178f29STrond Myklebust out: 21311da177e4SLinus Torvalds return status; 21321da177e4SLinus Torvalds } 21331da177e4SLinus Torvalds 21341da177e4SLinus Torvalds /* 2135683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2136683b57b4STrond Myklebust */ 21378687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2138683b57b4STrond Myklebust { 2139683b57b4STrond Myklebust struct xdr_stream xdr; 2140683b57b4STrond Myklebust struct compound_hdr hdr = { 2141683b57b4STrond Myklebust .nops = 3, 2142683b57b4STrond Myklebust }; 21431be27f36STrond Myklebust struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 2144683b57b4STrond Myklebust int replen; 2145683b57b4STrond Myklebust int status; 2146683b57b4STrond Myklebust 2147683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2148683b57b4STrond Myklebust encode_compound_hdr(&xdr, &hdr); 2149683b57b4STrond Myklebust if ((status = encode_putfh(&xdr, args->dir_fh)) != 0) 2150683b57b4STrond Myklebust goto out; 2151683b57b4STrond Myklebust if ((status = encode_lookup(&xdr, args->name)) != 0) 2152683b57b4STrond Myklebust goto out; 2153830b8e33SManoj Naik if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0) 2154683b57b4STrond Myklebust goto out; 2155683b57b4STrond Myklebust /* set up reply 2156830b8e33SManoj Naik * toplevel_status + OP_PUTFH + status 2157683b57b4STrond Myklebust * + OP_LOOKUP + status + OP_GETATTR + status = 7 2158683b57b4STrond Myklebust */ 2159683b57b4STrond Myklebust replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2; 2160683b57b4STrond Myklebust xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page, 2161683b57b4STrond Myklebust 0, PAGE_SIZE); 2162683b57b4STrond Myklebust out: 2163683b57b4STrond Myklebust return status; 2164683b57b4STrond Myklebust } 2165683b57b4STrond Myklebust 2166683b57b4STrond Myklebust /* 21671da177e4SLinus Torvalds * START OF "GENERIC" DECODE ROUTINES. 21681da177e4SLinus Torvalds * These may look a little ugly since they are imported from a "generic" 21691da177e4SLinus Torvalds * set of XDR encode/decode routines which are intended to be shared by 21701da177e4SLinus Torvalds * all of our NFSv4 implementations (OpenBSD, MacOS X...). 21711da177e4SLinus Torvalds * 21721da177e4SLinus Torvalds * If the pain of reading these is too great, it should be a straightforward 21731da177e4SLinus Torvalds * task to translate them into Linux-specific versions which are more 21741da177e4SLinus Torvalds * consistent with the style used in NFSv2/v3... 21751da177e4SLinus Torvalds */ 21761da177e4SLinus Torvalds #define READ32(x) (x) = ntohl(*p++) 21771da177e4SLinus Torvalds #define READ64(x) do { \ 21781da177e4SLinus Torvalds (x) = (u64)ntohl(*p++) << 32; \ 21791da177e4SLinus Torvalds (x) |= ntohl(*p++); \ 21801da177e4SLinus Torvalds } while (0) 21811da177e4SLinus Torvalds #define READTIME(x) do { \ 21821da177e4SLinus Torvalds p++; \ 21831da177e4SLinus Torvalds (x.tv_sec) = ntohl(*p++); \ 21841da177e4SLinus Torvalds (x.tv_nsec) = ntohl(*p++); \ 21851da177e4SLinus Torvalds } while (0) 21861da177e4SLinus Torvalds #define COPYMEM(x,nbytes) do { \ 21871da177e4SLinus Torvalds memcpy((x), p, nbytes); \ 21881da177e4SLinus Torvalds p += XDR_QUADLEN(nbytes); \ 21891da177e4SLinus Torvalds } while (0) 21901da177e4SLinus Torvalds 21911da177e4SLinus Torvalds #define READ_BUF(nbytes) do { \ 21921da177e4SLinus Torvalds p = xdr_inline_decode(xdr, nbytes); \ 2193e4cc6ee2SChuck Lever if (unlikely(!p)) { \ 2194fe82a183SChuck Lever dprintk("nfs: %s: prematurely hit end of receive" \ 2195e4cc6ee2SChuck Lever " buffer\n", __FUNCTION__); \ 2196fe82a183SChuck Lever dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \ 2197e4cc6ee2SChuck Lever __FUNCTION__, xdr->p, nbytes, xdr->end); \ 21981da177e4SLinus Torvalds return -EIO; \ 21991da177e4SLinus Torvalds } \ 22001da177e4SLinus Torvalds } while (0) 22011da177e4SLinus Torvalds 2202683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 22031da177e4SLinus Torvalds { 22048687b63aSAl Viro __be32 *p; 22051da177e4SLinus Torvalds 22061da177e4SLinus Torvalds READ_BUF(4); 22071da177e4SLinus Torvalds READ32(*len); 22081da177e4SLinus Torvalds READ_BUF(*len); 22091da177e4SLinus Torvalds *string = (char *)p; 22101da177e4SLinus Torvalds return 0; 22111da177e4SLinus Torvalds } 22121da177e4SLinus Torvalds 22131da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 22141da177e4SLinus Torvalds { 22158687b63aSAl Viro __be32 *p; 22161da177e4SLinus Torvalds 22171da177e4SLinus Torvalds READ_BUF(8); 22181da177e4SLinus Torvalds READ32(hdr->status); 22191da177e4SLinus Torvalds READ32(hdr->taglen); 22201da177e4SLinus Torvalds 22211da177e4SLinus Torvalds READ_BUF(hdr->taglen + 4); 22221da177e4SLinus Torvalds hdr->tag = (char *)p; 22231da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 22241da177e4SLinus Torvalds READ32(hdr->nops); 22251da177e4SLinus Torvalds return 0; 22261da177e4SLinus Torvalds } 22271da177e4SLinus Torvalds 22281da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 22291da177e4SLinus Torvalds { 22308687b63aSAl Viro __be32 *p; 22311da177e4SLinus Torvalds uint32_t opnum; 22321da177e4SLinus Torvalds int32_t nfserr; 22331da177e4SLinus Torvalds 22341da177e4SLinus Torvalds READ_BUF(8); 22351da177e4SLinus Torvalds READ32(opnum); 22361da177e4SLinus Torvalds if (opnum != expected) { 2237fe82a183SChuck Lever dprintk("nfs: Server returned operation" 22381da177e4SLinus Torvalds " %d but we issued a request for %d\n", 22391da177e4SLinus Torvalds opnum, expected); 22401da177e4SLinus Torvalds return -EIO; 22411da177e4SLinus Torvalds } 22421da177e4SLinus Torvalds READ32(nfserr); 22431da177e4SLinus Torvalds if (nfserr != NFS_OK) 22440a8ea437SDavid Howells return -nfs4_stat_to_errno(nfserr); 22451da177e4SLinus Torvalds return 0; 22461da177e4SLinus Torvalds } 22471da177e4SLinus Torvalds 22481da177e4SLinus Torvalds /* Dummy routine */ 2249adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 22501da177e4SLinus Torvalds { 22518687b63aSAl Viro __be32 *p; 2252683b57b4STrond Myklebust unsigned int strlen; 22531da177e4SLinus Torvalds char *str; 22541da177e4SLinus Torvalds 22551da177e4SLinus Torvalds READ_BUF(12); 22561da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 22571da177e4SLinus Torvalds } 22581da177e4SLinus Torvalds 22591da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 22601da177e4SLinus Torvalds { 22618687b63aSAl Viro uint32_t bmlen; 22628687b63aSAl Viro __be32 *p; 22631da177e4SLinus Torvalds 22641da177e4SLinus Torvalds READ_BUF(4); 22651da177e4SLinus Torvalds READ32(bmlen); 22661da177e4SLinus Torvalds 22671da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 22681da177e4SLinus Torvalds READ_BUF((bmlen << 2)); 22691da177e4SLinus Torvalds if (bmlen > 0) { 22701da177e4SLinus Torvalds READ32(bitmap[0]); 22711da177e4SLinus Torvalds if (bmlen > 1) 22721da177e4SLinus Torvalds READ32(bitmap[1]); 22731da177e4SLinus Torvalds } 22741da177e4SLinus Torvalds return 0; 22751da177e4SLinus Torvalds } 22761da177e4SLinus Torvalds 22778687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 22781da177e4SLinus Torvalds { 22798687b63aSAl Viro __be32 *p; 22801da177e4SLinus Torvalds 22811da177e4SLinus Torvalds READ_BUF(4); 22821da177e4SLinus Torvalds READ32(*attrlen); 22831da177e4SLinus Torvalds *savep = xdr->p; 22841da177e4SLinus Torvalds return 0; 22851da177e4SLinus Torvalds } 22861da177e4SLinus Torvalds 22871da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 22881da177e4SLinus Torvalds { 22891da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 22901da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 22911da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 22921da177e4SLinus Torvalds } else 22931da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 22941da177e4SLinus Torvalds dprintk("%s: bitmask=0x%x%x\n", __FUNCTION__, bitmask[0], bitmask[1]); 22951da177e4SLinus Torvalds return 0; 22961da177e4SLinus Torvalds } 22971da177e4SLinus Torvalds 22981da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 22991da177e4SLinus Torvalds { 23008687b63aSAl Viro __be32 *p; 23011da177e4SLinus Torvalds 23021da177e4SLinus Torvalds *type = 0; 23031da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 23041da177e4SLinus Torvalds return -EIO; 23051da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 23061da177e4SLinus Torvalds READ_BUF(4); 23071da177e4SLinus Torvalds READ32(*type); 23081da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 23091da177e4SLinus Torvalds dprintk("%s: bad type %d\n", __FUNCTION__, *type); 23101da177e4SLinus Torvalds return -EIO; 23111da177e4SLinus Torvalds } 23121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 23131da177e4SLinus Torvalds } 23141da177e4SLinus Torvalds dprintk("%s: type=0%o\n", __FUNCTION__, nfs_type2fmt[*type].nfs2type); 23151da177e4SLinus Torvalds return 0; 23161da177e4SLinus Torvalds } 23171da177e4SLinus Torvalds 23181da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 23191da177e4SLinus Torvalds { 23208687b63aSAl Viro __be32 *p; 23211da177e4SLinus Torvalds 23221da177e4SLinus Torvalds *change = 0; 23231da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 23241da177e4SLinus Torvalds return -EIO; 23251da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 23261da177e4SLinus Torvalds READ_BUF(8); 23271da177e4SLinus Torvalds READ64(*change); 23281da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 23291da177e4SLinus Torvalds } 23301da177e4SLinus Torvalds dprintk("%s: change attribute=%Lu\n", __FUNCTION__, 23311da177e4SLinus Torvalds (unsigned long long)*change); 23321da177e4SLinus Torvalds return 0; 23331da177e4SLinus Torvalds } 23341da177e4SLinus Torvalds 23351da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 23361da177e4SLinus Torvalds { 23378687b63aSAl Viro __be32 *p; 23381da177e4SLinus Torvalds 23391da177e4SLinus Torvalds *size = 0; 23401da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 23411da177e4SLinus Torvalds return -EIO; 23421da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 23431da177e4SLinus Torvalds READ_BUF(8); 23441da177e4SLinus Torvalds READ64(*size); 23451da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 23461da177e4SLinus Torvalds } 23471da177e4SLinus Torvalds dprintk("%s: file size=%Lu\n", __FUNCTION__, (unsigned long long)*size); 23481da177e4SLinus Torvalds return 0; 23491da177e4SLinus Torvalds } 23501da177e4SLinus Torvalds 23511da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23521da177e4SLinus Torvalds { 23538687b63aSAl Viro __be32 *p; 23541da177e4SLinus Torvalds 23551da177e4SLinus Torvalds *res = 0; 23561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 23571da177e4SLinus Torvalds return -EIO; 23581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 23591da177e4SLinus Torvalds READ_BUF(4); 23601da177e4SLinus Torvalds READ32(*res); 23611da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 23621da177e4SLinus Torvalds } 23631da177e4SLinus Torvalds dprintk("%s: link support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 23641da177e4SLinus Torvalds return 0; 23651da177e4SLinus Torvalds } 23661da177e4SLinus Torvalds 23671da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 23681da177e4SLinus Torvalds { 23698687b63aSAl Viro __be32 *p; 23701da177e4SLinus Torvalds 23711da177e4SLinus Torvalds *res = 0; 23721da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 23731da177e4SLinus Torvalds return -EIO; 23741da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 23751da177e4SLinus Torvalds READ_BUF(4); 23761da177e4SLinus Torvalds READ32(*res); 23771da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 23781da177e4SLinus Torvalds } 23791da177e4SLinus Torvalds dprintk("%s: symlink support=%s\n", __FUNCTION__, *res == 0 ? "false" : "true"); 23801da177e4SLinus Torvalds return 0; 23811da177e4SLinus Torvalds } 23821da177e4SLinus Torvalds 23838b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 23841da177e4SLinus Torvalds { 23858687b63aSAl Viro __be32 *p; 23861da177e4SLinus Torvalds 23871da177e4SLinus Torvalds fsid->major = 0; 23881da177e4SLinus Torvalds fsid->minor = 0; 23891da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 23901da177e4SLinus Torvalds return -EIO; 23911da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 23921da177e4SLinus Torvalds READ_BUF(16); 23931da177e4SLinus Torvalds READ64(fsid->major); 23941da177e4SLinus Torvalds READ64(fsid->minor); 23951da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 23961da177e4SLinus Torvalds } 23971da177e4SLinus Torvalds dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __FUNCTION__, 23981da177e4SLinus Torvalds (unsigned long long)fsid->major, 23991da177e4SLinus Torvalds (unsigned long long)fsid->minor); 24001da177e4SLinus Torvalds return 0; 24011da177e4SLinus Torvalds } 24021da177e4SLinus Torvalds 24031da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 24041da177e4SLinus Torvalds { 24058687b63aSAl Viro __be32 *p; 24061da177e4SLinus Torvalds 24071da177e4SLinus Torvalds *res = 60; 24081da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 24091da177e4SLinus Torvalds return -EIO; 24101da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 24111da177e4SLinus Torvalds READ_BUF(4); 24121da177e4SLinus Torvalds READ32(*res); 24131da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 24141da177e4SLinus Torvalds } 24151da177e4SLinus Torvalds dprintk("%s: file size=%u\n", __FUNCTION__, (unsigned int)*res); 24161da177e4SLinus Torvalds return 0; 24171da177e4SLinus Torvalds } 24181da177e4SLinus Torvalds 24191da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 24201da177e4SLinus Torvalds { 24218687b63aSAl Viro __be32 *p; 24221da177e4SLinus Torvalds 24231da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 24241da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 24251da177e4SLinus Torvalds return -EIO; 24261da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 24271da177e4SLinus Torvalds READ_BUF(4); 24281da177e4SLinus Torvalds READ32(*res); 24291da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 24301da177e4SLinus Torvalds } 24311da177e4SLinus Torvalds dprintk("%s: ACLs supported=%u\n", __FUNCTION__, (unsigned int)*res); 24321da177e4SLinus Torvalds return 0; 24331da177e4SLinus Torvalds } 24341da177e4SLinus Torvalds 24351da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 24361da177e4SLinus Torvalds { 24378687b63aSAl Viro __be32 *p; 24381da177e4SLinus Torvalds 24391da177e4SLinus Torvalds *fileid = 0; 24401da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 24411da177e4SLinus Torvalds return -EIO; 24421da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 24431da177e4SLinus Torvalds READ_BUF(8); 24441da177e4SLinus Torvalds READ64(*fileid); 24451da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 24461da177e4SLinus Torvalds } 24471da177e4SLinus Torvalds dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 24481da177e4SLinus Torvalds return 0; 24491da177e4SLinus Torvalds } 24501da177e4SLinus Torvalds 245199baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 245299baf625SManoj Naik { 24538687b63aSAl Viro __be32 *p; 245499baf625SManoj Naik 245599baf625SManoj Naik *fileid = 0; 245699baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 245799baf625SManoj Naik return -EIO; 245899baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 245999baf625SManoj Naik READ_BUF(8); 246099baf625SManoj Naik READ64(*fileid); 246199baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 246299baf625SManoj Naik } 246399baf625SManoj Naik dprintk("%s: fileid=%Lu\n", __FUNCTION__, (unsigned long long)*fileid); 246499baf625SManoj Naik return 0; 246599baf625SManoj Naik } 246699baf625SManoj Naik 24671da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24681da177e4SLinus Torvalds { 24698687b63aSAl Viro __be32 *p; 24701da177e4SLinus Torvalds int status = 0; 24711da177e4SLinus Torvalds 24721da177e4SLinus Torvalds *res = 0; 24731da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 24741da177e4SLinus Torvalds return -EIO; 24751da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 24761da177e4SLinus Torvalds READ_BUF(8); 24771da177e4SLinus Torvalds READ64(*res); 24781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 24791da177e4SLinus Torvalds } 24801da177e4SLinus Torvalds dprintk("%s: files avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24811da177e4SLinus Torvalds return status; 24821da177e4SLinus Torvalds } 24831da177e4SLinus Torvalds 24841da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 24851da177e4SLinus Torvalds { 24868687b63aSAl Viro __be32 *p; 24871da177e4SLinus Torvalds int status = 0; 24881da177e4SLinus Torvalds 24891da177e4SLinus Torvalds *res = 0; 24901da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 24911da177e4SLinus Torvalds return -EIO; 24921da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 24931da177e4SLinus Torvalds READ_BUF(8); 24941da177e4SLinus Torvalds READ64(*res); 24951da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 24961da177e4SLinus Torvalds } 24971da177e4SLinus Torvalds dprintk("%s: files free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 24981da177e4SLinus Torvalds return status; 24991da177e4SLinus Torvalds } 25001da177e4SLinus Torvalds 25011da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 25021da177e4SLinus Torvalds { 25038687b63aSAl Viro __be32 *p; 25041da177e4SLinus Torvalds int status = 0; 25051da177e4SLinus Torvalds 25061da177e4SLinus Torvalds *res = 0; 25071da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 25081da177e4SLinus Torvalds return -EIO; 25091da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 25101da177e4SLinus Torvalds READ_BUF(8); 25111da177e4SLinus Torvalds READ64(*res); 25121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 25131da177e4SLinus Torvalds } 25141da177e4SLinus Torvalds dprintk("%s: files total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 25151da177e4SLinus Torvalds return status; 25161da177e4SLinus Torvalds } 25171da177e4SLinus Torvalds 25187aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 25197aaa0b3bSManoj Naik { 2520464ad6b1SChuck Lever u32 n; 25218687b63aSAl Viro __be32 *p; 25227aaa0b3bSManoj Naik int status = 0; 25237aaa0b3bSManoj Naik 25247aaa0b3bSManoj Naik READ_BUF(4); 25257aaa0b3bSManoj Naik READ32(n); 252633a43f28SAndy Adamson if (n == 0) 252733a43f28SAndy Adamson goto root_path; 25287aaa0b3bSManoj Naik dprintk("path "); 25297aaa0b3bSManoj Naik path->ncomponents = 0; 25307aaa0b3bSManoj Naik while (path->ncomponents < n) { 25317aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 25327aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 25337aaa0b3bSManoj Naik if (unlikely(status != 0)) 25347aaa0b3bSManoj Naik goto out_eio; 25357aaa0b3bSManoj Naik if (path->ncomponents != n) 25367aaa0b3bSManoj Naik dprintk("/"); 25377aaa0b3bSManoj Naik dprintk("%s", component->data); 25387aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 25397aaa0b3bSManoj Naik path->ncomponents++; 25407aaa0b3bSManoj Naik else { 25417aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 25427aaa0b3bSManoj Naik goto out_eio; 25437aaa0b3bSManoj Naik } 25447aaa0b3bSManoj Naik } 25457aaa0b3bSManoj Naik out: 25467aaa0b3bSManoj Naik dprintk("\n"); 25477aaa0b3bSManoj Naik return status; 254833a43f28SAndy Adamson root_path: 254933a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 255033a43f28SAndy Adamson path->ncomponents = 1; 255133a43f28SAndy Adamson path->components[0].len=0; 255233a43f28SAndy Adamson path->components[0].data=NULL; 255333a43f28SAndy Adamson dprintk("path /\n"); 255433a43f28SAndy Adamson goto out; 25557aaa0b3bSManoj Naik out_eio: 25567aaa0b3bSManoj Naik dprintk(" status %d", status); 25577aaa0b3bSManoj Naik status = -EIO; 25587aaa0b3bSManoj Naik goto out; 25597aaa0b3bSManoj Naik } 25607aaa0b3bSManoj Naik 25617aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2562683b57b4STrond Myklebust { 2563683b57b4STrond Myklebust int n; 25648687b63aSAl Viro __be32 *p; 2565683b57b4STrond Myklebust int status = -EIO; 2566683b57b4STrond Myklebust 2567683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2568683b57b4STrond Myklebust goto out; 2569683b57b4STrond Myklebust status = 0; 2570683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2571683b57b4STrond Myklebust goto out; 25727aaa0b3bSManoj Naik dprintk("%s: fsroot ", __FUNCTION__); 25737aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 2574683b57b4STrond Myklebust if (unlikely(status != 0)) 2575683b57b4STrond Myklebust goto out; 2576683b57b4STrond Myklebust READ_BUF(4); 2577683b57b4STrond Myklebust READ32(n); 2578683b57b4STrond Myklebust if (n <= 0) 2579683b57b4STrond Myklebust goto out_eio; 2580683b57b4STrond Myklebust res->nlocations = 0; 2581683b57b4STrond Myklebust while (res->nlocations < n) { 2582464ad6b1SChuck Lever u32 m; 25837aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 2584683b57b4STrond Myklebust 25857aaa0b3bSManoj Naik READ_BUF(4); 25867aaa0b3bSManoj Naik READ32(m); 25877aaa0b3bSManoj Naik 25887aaa0b3bSManoj Naik loc->nservers = 0; 25897aaa0b3bSManoj Naik dprintk("%s: servers ", __FUNCTION__); 25907aaa0b3bSManoj Naik while (loc->nservers < m) { 25917aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 25927aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 2593683b57b4STrond Myklebust if (unlikely(status != 0)) 2594683b57b4STrond Myklebust goto out_eio; 25957aaa0b3bSManoj Naik dprintk("%s ", server->data); 25967aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 25977aaa0b3bSManoj Naik loc->nservers++; 25987aaa0b3bSManoj Naik else { 2599464ad6b1SChuck Lever unsigned int i; 2600464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 2601464ad6b1SChuck Lever "returned for location %u\n", 2602464ad6b1SChuck Lever __FUNCTION__, 2603464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 2604464ad6b1SChuck Lever m, res->nlocations); 26057aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 26062e42c3e2STrond Myklebust unsigned int len; 26077aaa0b3bSManoj Naik char *data; 26087aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 2609683b57b4STrond Myklebust if (unlikely(status != 0)) 2610683b57b4STrond Myklebust goto out_eio; 26117aaa0b3bSManoj Naik } 26127aaa0b3bSManoj Naik } 26137aaa0b3bSManoj Naik } 26147aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 26157aaa0b3bSManoj Naik if (unlikely(status != 0)) 26167aaa0b3bSManoj Naik goto out_eio; 26177aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 2618683b57b4STrond Myklebust res->nlocations++; 2619683b57b4STrond Myklebust } 2620683b57b4STrond Myklebust out: 2621683b57b4STrond Myklebust dprintk("%s: fs_locations done, error = %d\n", __FUNCTION__, status); 2622683b57b4STrond Myklebust return status; 2623683b57b4STrond Myklebust out_eio: 2624683b57b4STrond Myklebust status = -EIO; 2625683b57b4STrond Myklebust goto out; 2626683b57b4STrond Myklebust } 2627683b57b4STrond Myklebust 26281da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 26291da177e4SLinus Torvalds { 26308687b63aSAl Viro __be32 *p; 26311da177e4SLinus Torvalds int status = 0; 26321da177e4SLinus Torvalds 26331da177e4SLinus Torvalds *res = 0; 26341da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 26351da177e4SLinus Torvalds return -EIO; 26361da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 26371da177e4SLinus Torvalds READ_BUF(8); 26381da177e4SLinus Torvalds READ64(*res); 26391da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 26401da177e4SLinus Torvalds } 26411da177e4SLinus Torvalds dprintk("%s: maxfilesize=%Lu\n", __FUNCTION__, (unsigned long long)*res); 26421da177e4SLinus Torvalds return status; 26431da177e4SLinus Torvalds } 26441da177e4SLinus Torvalds 26451da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 26461da177e4SLinus Torvalds { 26478687b63aSAl Viro __be32 *p; 26481da177e4SLinus Torvalds int status = 0; 26491da177e4SLinus Torvalds 26501da177e4SLinus Torvalds *maxlink = 1; 26511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 26521da177e4SLinus Torvalds return -EIO; 26531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 26541da177e4SLinus Torvalds READ_BUF(4); 26551da177e4SLinus Torvalds READ32(*maxlink); 26561da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 26571da177e4SLinus Torvalds } 26581da177e4SLinus Torvalds dprintk("%s: maxlink=%u\n", __FUNCTION__, *maxlink); 26591da177e4SLinus Torvalds return status; 26601da177e4SLinus Torvalds } 26611da177e4SLinus Torvalds 26621da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 26631da177e4SLinus Torvalds { 26648687b63aSAl Viro __be32 *p; 26651da177e4SLinus Torvalds int status = 0; 26661da177e4SLinus Torvalds 26671da177e4SLinus Torvalds *maxname = 1024; 26681da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 26691da177e4SLinus Torvalds return -EIO; 26701da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 26711da177e4SLinus Torvalds READ_BUF(4); 26721da177e4SLinus Torvalds READ32(*maxname); 26731da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 26741da177e4SLinus Torvalds } 26751da177e4SLinus Torvalds dprintk("%s: maxname=%u\n", __FUNCTION__, *maxname); 26761da177e4SLinus Torvalds return status; 26771da177e4SLinus Torvalds } 26781da177e4SLinus Torvalds 26791da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 26801da177e4SLinus Torvalds { 26818687b63aSAl Viro __be32 *p; 26821da177e4SLinus Torvalds int status = 0; 26831da177e4SLinus Torvalds 26841da177e4SLinus Torvalds *res = 1024; 26851da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 26861da177e4SLinus Torvalds return -EIO; 26871da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 26881da177e4SLinus Torvalds uint64_t maxread; 26891da177e4SLinus Torvalds READ_BUF(8); 26901da177e4SLinus Torvalds READ64(maxread); 26911da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 26921da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 26931da177e4SLinus Torvalds *res = (uint32_t)maxread; 26941da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 26951da177e4SLinus Torvalds } 26961da177e4SLinus Torvalds dprintk("%s: maxread=%lu\n", __FUNCTION__, (unsigned long)*res); 26971da177e4SLinus Torvalds return status; 26981da177e4SLinus Torvalds } 26991da177e4SLinus Torvalds 27001da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27011da177e4SLinus Torvalds { 27028687b63aSAl Viro __be32 *p; 27031da177e4SLinus Torvalds int status = 0; 27041da177e4SLinus Torvalds 27051da177e4SLinus Torvalds *res = 1024; 27061da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 27071da177e4SLinus Torvalds return -EIO; 27081da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 27091da177e4SLinus Torvalds uint64_t maxwrite; 27101da177e4SLinus Torvalds READ_BUF(8); 27111da177e4SLinus Torvalds READ64(maxwrite); 27121da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 27131da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 27141da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 27151da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 27161da177e4SLinus Torvalds } 27171da177e4SLinus Torvalds dprintk("%s: maxwrite=%lu\n", __FUNCTION__, (unsigned long)*res); 27181da177e4SLinus Torvalds return status; 27191da177e4SLinus Torvalds } 27201da177e4SLinus Torvalds 27211da177e4SLinus Torvalds static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode) 27221da177e4SLinus Torvalds { 27238687b63aSAl Viro __be32 *p; 27241da177e4SLinus Torvalds 27251da177e4SLinus Torvalds *mode = 0; 27261da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 27271da177e4SLinus Torvalds return -EIO; 27281da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 27291da177e4SLinus Torvalds READ_BUF(4); 27301da177e4SLinus Torvalds READ32(*mode); 27311da177e4SLinus Torvalds *mode &= ~S_IFMT; 27321da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 27331da177e4SLinus Torvalds } 27341da177e4SLinus Torvalds dprintk("%s: file mode=0%o\n", __FUNCTION__, (unsigned int)*mode); 27351da177e4SLinus Torvalds return 0; 27361da177e4SLinus Torvalds } 27371da177e4SLinus Torvalds 27381da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 27391da177e4SLinus Torvalds { 27408687b63aSAl Viro __be32 *p; 27411da177e4SLinus Torvalds 27421da177e4SLinus Torvalds *nlink = 1; 27431da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 27441da177e4SLinus Torvalds return -EIO; 27451da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 27461da177e4SLinus Torvalds READ_BUF(4); 27471da177e4SLinus Torvalds READ32(*nlink); 27481da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 27491da177e4SLinus Torvalds } 27501da177e4SLinus Torvalds dprintk("%s: nlink=%u\n", __FUNCTION__, (unsigned int)*nlink); 27511da177e4SLinus Torvalds return 0; 27521da177e4SLinus Torvalds } 27531da177e4SLinus Torvalds 27542e42c3e2STrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *uid) 27551da177e4SLinus Torvalds { 27568687b63aSAl Viro uint32_t len; 27578687b63aSAl Viro __be32 *p; 27581da177e4SLinus Torvalds 27591da177e4SLinus Torvalds *uid = -2; 27601da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 27611da177e4SLinus Torvalds return -EIO; 27621da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 27631da177e4SLinus Torvalds READ_BUF(4); 27641da177e4SLinus Torvalds READ32(len); 27651da177e4SLinus Torvalds READ_BUF(len); 27661da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 27671da177e4SLinus Torvalds if (nfs_map_name_to_uid(clp, (char *)p, len, uid) != 0) 27681da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 27691da177e4SLinus Torvalds __FUNCTION__); 27701da177e4SLinus Torvalds } else 2771fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 27721da177e4SLinus Torvalds __FUNCTION__, len); 27731da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 27741da177e4SLinus Torvalds } 27751da177e4SLinus Torvalds dprintk("%s: uid=%d\n", __FUNCTION__, (int)*uid); 27761da177e4SLinus Torvalds return 0; 27771da177e4SLinus Torvalds } 27781da177e4SLinus Torvalds 27792e42c3e2STrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_client *clp, uint32_t *gid) 27801da177e4SLinus Torvalds { 27818687b63aSAl Viro uint32_t len; 27828687b63aSAl Viro __be32 *p; 27831da177e4SLinus Torvalds 27841da177e4SLinus Torvalds *gid = -2; 27851da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 27861da177e4SLinus Torvalds return -EIO; 27871da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 27881da177e4SLinus Torvalds READ_BUF(4); 27891da177e4SLinus Torvalds READ32(len); 27901da177e4SLinus Torvalds READ_BUF(len); 27911da177e4SLinus Torvalds if (len < XDR_MAX_NETOBJ) { 27921da177e4SLinus Torvalds if (nfs_map_group_to_gid(clp, (char *)p, len, gid) != 0) 27931da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 27941da177e4SLinus Torvalds __FUNCTION__); 27951da177e4SLinus Torvalds } else 2796fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 27971da177e4SLinus Torvalds __FUNCTION__, len); 27981da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 27991da177e4SLinus Torvalds } 28001da177e4SLinus Torvalds dprintk("%s: gid=%d\n", __FUNCTION__, (int)*gid); 28011da177e4SLinus Torvalds return 0; 28021da177e4SLinus Torvalds } 28031da177e4SLinus Torvalds 28041da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 28051da177e4SLinus Torvalds { 28068687b63aSAl Viro uint32_t major = 0, minor = 0; 28078687b63aSAl Viro __be32 *p; 28081da177e4SLinus Torvalds 28091da177e4SLinus Torvalds *rdev = MKDEV(0,0); 28101da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 28111da177e4SLinus Torvalds return -EIO; 28121da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 28131da177e4SLinus Torvalds dev_t tmp; 28141da177e4SLinus Torvalds 28151da177e4SLinus Torvalds READ_BUF(8); 28161da177e4SLinus Torvalds READ32(major); 28171da177e4SLinus Torvalds READ32(minor); 28181da177e4SLinus Torvalds tmp = MKDEV(major, minor); 28191da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 28201da177e4SLinus Torvalds *rdev = tmp; 28211da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 28221da177e4SLinus Torvalds } 28231da177e4SLinus Torvalds dprintk("%s: rdev=(0x%x:0x%x)\n", __FUNCTION__, major, minor); 28241da177e4SLinus Torvalds return 0; 28251da177e4SLinus Torvalds } 28261da177e4SLinus Torvalds 28271da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28281da177e4SLinus Torvalds { 28298687b63aSAl Viro __be32 *p; 28301da177e4SLinus Torvalds int status = 0; 28311da177e4SLinus Torvalds 28321da177e4SLinus Torvalds *res = 0; 28331da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 28341da177e4SLinus Torvalds return -EIO; 28351da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 28361da177e4SLinus Torvalds READ_BUF(8); 28371da177e4SLinus Torvalds READ64(*res); 28381da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 28391da177e4SLinus Torvalds } 28401da177e4SLinus Torvalds dprintk("%s: space avail=%Lu\n", __FUNCTION__, (unsigned long long)*res); 28411da177e4SLinus Torvalds return status; 28421da177e4SLinus Torvalds } 28431da177e4SLinus Torvalds 28441da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28451da177e4SLinus Torvalds { 28468687b63aSAl Viro __be32 *p; 28471da177e4SLinus Torvalds int status = 0; 28481da177e4SLinus Torvalds 28491da177e4SLinus Torvalds *res = 0; 28501da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 28511da177e4SLinus Torvalds return -EIO; 28521da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 28531da177e4SLinus Torvalds READ_BUF(8); 28541da177e4SLinus Torvalds READ64(*res); 28551da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 28561da177e4SLinus Torvalds } 28571da177e4SLinus Torvalds dprintk("%s: space free=%Lu\n", __FUNCTION__, (unsigned long long)*res); 28581da177e4SLinus Torvalds return status; 28591da177e4SLinus Torvalds } 28601da177e4SLinus Torvalds 28611da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28621da177e4SLinus Torvalds { 28638687b63aSAl Viro __be32 *p; 28641da177e4SLinus Torvalds int status = 0; 28651da177e4SLinus Torvalds 28661da177e4SLinus Torvalds *res = 0; 28671da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 28681da177e4SLinus Torvalds return -EIO; 28691da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 28701da177e4SLinus Torvalds READ_BUF(8); 28711da177e4SLinus Torvalds READ64(*res); 28721da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 28731da177e4SLinus Torvalds } 28741da177e4SLinus Torvalds dprintk("%s: space total=%Lu\n", __FUNCTION__, (unsigned long long)*res); 28751da177e4SLinus Torvalds return status; 28761da177e4SLinus Torvalds } 28771da177e4SLinus Torvalds 28781da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 28791da177e4SLinus Torvalds { 28808687b63aSAl Viro __be32 *p; 28811da177e4SLinus Torvalds 28821da177e4SLinus Torvalds *used = 0; 28831da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 28841da177e4SLinus Torvalds return -EIO; 28851da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 28861da177e4SLinus Torvalds READ_BUF(8); 28871da177e4SLinus Torvalds READ64(*used); 28881da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 28891da177e4SLinus Torvalds } 28901da177e4SLinus Torvalds dprintk("%s: space used=%Lu\n", __FUNCTION__, 28911da177e4SLinus Torvalds (unsigned long long)*used); 28921da177e4SLinus Torvalds return 0; 28931da177e4SLinus Torvalds } 28941da177e4SLinus Torvalds 28951da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 28961da177e4SLinus Torvalds { 28978687b63aSAl Viro __be32 *p; 28981da177e4SLinus Torvalds uint64_t sec; 28991da177e4SLinus Torvalds uint32_t nsec; 29001da177e4SLinus Torvalds 29011da177e4SLinus Torvalds READ_BUF(12); 29021da177e4SLinus Torvalds READ64(sec); 29031da177e4SLinus Torvalds READ32(nsec); 29041da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 29051da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 29061da177e4SLinus Torvalds return 0; 29071da177e4SLinus Torvalds } 29081da177e4SLinus Torvalds 29091da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 29101da177e4SLinus Torvalds { 29111da177e4SLinus Torvalds int status = 0; 29121da177e4SLinus Torvalds 29131da177e4SLinus Torvalds time->tv_sec = 0; 29141da177e4SLinus Torvalds time->tv_nsec = 0; 29151da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 29161da177e4SLinus Torvalds return -EIO; 29171da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 29181da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 29191da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 29201da177e4SLinus Torvalds } 29211da177e4SLinus Torvalds dprintk("%s: atime=%ld\n", __FUNCTION__, (long)time->tv_sec); 29221da177e4SLinus Torvalds return status; 29231da177e4SLinus Torvalds } 29241da177e4SLinus Torvalds 29251da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 29261da177e4SLinus Torvalds { 29271da177e4SLinus Torvalds int status = 0; 29281da177e4SLinus Torvalds 29291da177e4SLinus Torvalds time->tv_sec = 0; 29301da177e4SLinus Torvalds time->tv_nsec = 0; 29311da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 29321da177e4SLinus Torvalds return -EIO; 29331da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 29341da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 29351da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 29361da177e4SLinus Torvalds } 29371da177e4SLinus Torvalds dprintk("%s: ctime=%ld\n", __FUNCTION__, (long)time->tv_sec); 29381da177e4SLinus Torvalds return status; 29391da177e4SLinus Torvalds } 29401da177e4SLinus Torvalds 29411da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 29421da177e4SLinus Torvalds { 29431da177e4SLinus Torvalds int status = 0; 29441da177e4SLinus Torvalds 29451da177e4SLinus Torvalds time->tv_sec = 0; 29461da177e4SLinus Torvalds time->tv_nsec = 0; 29471da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 29481da177e4SLinus Torvalds return -EIO; 29491da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 29501da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 29511da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 29521da177e4SLinus Torvalds } 29531da177e4SLinus Torvalds dprintk("%s: mtime=%ld\n", __FUNCTION__, (long)time->tv_sec); 29541da177e4SLinus Torvalds return status; 29551da177e4SLinus Torvalds } 29561da177e4SLinus Torvalds 29578687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 29581da177e4SLinus Torvalds { 29591da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 29601da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 29611da177e4SLinus Torvalds 29621da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 2963fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 2964fe82a183SChuck Lever "%u %c %u\n", 29651da177e4SLinus Torvalds __FUNCTION__, 29661da177e4SLinus Torvalds attrwords << 2, 29671da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 29681da177e4SLinus Torvalds nwords << 2); 29691da177e4SLinus Torvalds return -EIO; 29701da177e4SLinus Torvalds } 29711da177e4SLinus Torvalds return 0; 29721da177e4SLinus Torvalds } 29731da177e4SLinus Torvalds 29741da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 29751da177e4SLinus Torvalds { 29768687b63aSAl Viro __be32 *p; 29771da177e4SLinus Torvalds 29781da177e4SLinus Torvalds READ_BUF(20); 29791da177e4SLinus Torvalds READ32(cinfo->atomic); 29801da177e4SLinus Torvalds READ64(cinfo->before); 29811da177e4SLinus Torvalds READ64(cinfo->after); 29821da177e4SLinus Torvalds return 0; 29831da177e4SLinus Torvalds } 29841da177e4SLinus Torvalds 29851da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 29861da177e4SLinus Torvalds { 29878687b63aSAl Viro __be32 *p; 29881da177e4SLinus Torvalds uint32_t supp, acc; 29891da177e4SLinus Torvalds int status; 29901da177e4SLinus Torvalds 29911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 29921da177e4SLinus Torvalds if (status) 29931da177e4SLinus Torvalds return status; 29941da177e4SLinus Torvalds READ_BUF(8); 29951da177e4SLinus Torvalds READ32(supp); 29961da177e4SLinus Torvalds READ32(acc); 29971da177e4SLinus Torvalds access->supported = supp; 29981da177e4SLinus Torvalds access->access = acc; 29991da177e4SLinus Torvalds return 0; 30001da177e4SLinus Torvalds } 30011da177e4SLinus Torvalds 30021da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 30031da177e4SLinus Torvalds { 30048687b63aSAl Viro __be32 *p; 30051da177e4SLinus Torvalds int status; 30061da177e4SLinus Torvalds 30071da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 30081da177e4SLinus Torvalds if (status) 30091da177e4SLinus Torvalds return status; 30108ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 30118ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 30121da177e4SLinus Torvalds return 0; 30131da177e4SLinus Torvalds } 30141da177e4SLinus Torvalds 30151da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 30161da177e4SLinus Torvalds { 30178687b63aSAl Viro __be32 *p; 30181da177e4SLinus Torvalds int status; 30191da177e4SLinus Torvalds 30201da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 30211da177e4SLinus Torvalds if (status) 30221da177e4SLinus Torvalds return status; 30231da177e4SLinus Torvalds READ_BUF(8); 30241da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 30251da177e4SLinus Torvalds return 0; 30261da177e4SLinus Torvalds } 30271da177e4SLinus Torvalds 30281da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 30291da177e4SLinus Torvalds { 30308687b63aSAl Viro __be32 *p; 30311da177e4SLinus Torvalds uint32_t bmlen; 30321da177e4SLinus Torvalds int status; 30331da177e4SLinus Torvalds 30341da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 30351da177e4SLinus Torvalds if (status) 30361da177e4SLinus Torvalds return status; 30371da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 30381da177e4SLinus Torvalds return status; 30391da177e4SLinus Torvalds READ_BUF(4); 30401da177e4SLinus Torvalds READ32(bmlen); 30411da177e4SLinus Torvalds READ_BUF(bmlen << 2); 30421da177e4SLinus Torvalds return 0; 30431da177e4SLinus Torvalds } 30441da177e4SLinus Torvalds 30451da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 30461da177e4SLinus Torvalds { 30478687b63aSAl Viro __be32 *savep; 30481da177e4SLinus Torvalds uint32_t attrlen, 30491da177e4SLinus Torvalds bitmap[2] = {0}; 30501da177e4SLinus Torvalds int status; 30511da177e4SLinus Torvalds 30521da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30531da177e4SLinus Torvalds goto xdr_error; 30541da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30551da177e4SLinus Torvalds goto xdr_error; 30561da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30571da177e4SLinus Torvalds goto xdr_error; 30581da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 30591da177e4SLinus Torvalds goto xdr_error; 30601da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 30611da177e4SLinus Torvalds goto xdr_error; 30621da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 30631da177e4SLinus Torvalds goto xdr_error; 30641da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 30651da177e4SLinus Torvalds goto xdr_error; 30661da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 30671da177e4SLinus Torvalds xdr_error: 306816c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 30691da177e4SLinus Torvalds return status; 30701da177e4SLinus Torvalds } 30711da177e4SLinus Torvalds 30721da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 30731da177e4SLinus Torvalds { 30748687b63aSAl Viro __be32 *savep; 30751da177e4SLinus Torvalds uint32_t attrlen, 30761da177e4SLinus Torvalds bitmap[2] = {0}; 30771da177e4SLinus Torvalds int status; 30781da177e4SLinus Torvalds 30791da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 30801da177e4SLinus Torvalds goto xdr_error; 30811da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 30821da177e4SLinus Torvalds goto xdr_error; 30831da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 30841da177e4SLinus Torvalds goto xdr_error; 30851da177e4SLinus Torvalds 30861da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 30871da177e4SLinus Torvalds goto xdr_error; 30881da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 30891da177e4SLinus Torvalds goto xdr_error; 30901da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 30911da177e4SLinus Torvalds goto xdr_error; 30921da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 30931da177e4SLinus Torvalds goto xdr_error; 30941da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 30951da177e4SLinus Torvalds goto xdr_error; 30961da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 30971da177e4SLinus Torvalds goto xdr_error; 30981da177e4SLinus Torvalds 30991da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 31001da177e4SLinus Torvalds xdr_error: 310116c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 31021da177e4SLinus Torvalds return status; 31031da177e4SLinus Torvalds } 31041da177e4SLinus Torvalds 31051da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 31061da177e4SLinus Torvalds { 31078687b63aSAl Viro __be32 *savep; 31081da177e4SLinus Torvalds uint32_t attrlen, 31091da177e4SLinus Torvalds bitmap[2] = {0}; 31101da177e4SLinus Torvalds int status; 31111da177e4SLinus Torvalds 31121da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31131da177e4SLinus Torvalds goto xdr_error; 31141da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31151da177e4SLinus Torvalds goto xdr_error; 31161da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 31171da177e4SLinus Torvalds goto xdr_error; 31181da177e4SLinus Torvalds 31191da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 31201da177e4SLinus Torvalds goto xdr_error; 31211da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 31221da177e4SLinus Torvalds goto xdr_error; 31231da177e4SLinus Torvalds 31241da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 31251da177e4SLinus Torvalds xdr_error: 312616c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 31271da177e4SLinus Torvalds return status; 31281da177e4SLinus Torvalds } 31291da177e4SLinus Torvalds 31301da177e4SLinus Torvalds static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, const struct nfs_server *server) 31311da177e4SLinus Torvalds { 31328687b63aSAl Viro __be32 *savep; 31331da177e4SLinus Torvalds uint32_t attrlen, 31341da177e4SLinus Torvalds bitmap[2] = {0}, 31351da177e4SLinus Torvalds type; 31361da177e4SLinus Torvalds int status, fmode = 0; 313799baf625SManoj Naik uint64_t fileid; 31381da177e4SLinus Torvalds 31391da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 31401da177e4SLinus Torvalds goto xdr_error; 31411da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 31421da177e4SLinus Torvalds goto xdr_error; 31431da177e4SLinus Torvalds 31441da177e4SLinus Torvalds fattr->bitmap[0] = bitmap[0]; 31451da177e4SLinus Torvalds fattr->bitmap[1] = bitmap[1]; 31461da177e4SLinus Torvalds 31471da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 31481da177e4SLinus Torvalds goto xdr_error; 31491da177e4SLinus Torvalds 31501da177e4SLinus Torvalds 31511da177e4SLinus Torvalds if ((status = decode_attr_type(xdr, bitmap, &type)) != 0) 31521da177e4SLinus Torvalds goto xdr_error; 31531da177e4SLinus Torvalds fattr->type = nfs_type2fmt[type].nfs2type; 31541da177e4SLinus Torvalds fmode = nfs_type2fmt[type].mode; 31551da177e4SLinus Torvalds 31561da177e4SLinus Torvalds if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0) 31571da177e4SLinus Torvalds goto xdr_error; 31581da177e4SLinus Torvalds if ((status = decode_attr_size(xdr, bitmap, &fattr->size)) != 0) 31591da177e4SLinus Torvalds goto xdr_error; 31608b4bdcf8STrond Myklebust if ((status = decode_attr_fsid(xdr, bitmap, &fattr->fsid)) != 0) 31611da177e4SLinus Torvalds goto xdr_error; 31621da177e4SLinus Torvalds if ((status = decode_attr_fileid(xdr, bitmap, &fattr->fileid)) != 0) 31631da177e4SLinus Torvalds goto xdr_error; 3164683b57b4STrond Myklebust if ((status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 31657aaa0b3bSManoj Naik struct nfs4_fs_locations, 3166683b57b4STrond Myklebust fattr))) != 0) 3167683b57b4STrond Myklebust goto xdr_error; 31681da177e4SLinus Torvalds if ((status = decode_attr_mode(xdr, bitmap, &fattr->mode)) != 0) 31691da177e4SLinus Torvalds goto xdr_error; 31701da177e4SLinus Torvalds fattr->mode |= fmode; 31711da177e4SLinus Torvalds if ((status = decode_attr_nlink(xdr, bitmap, &fattr->nlink)) != 0) 31721da177e4SLinus Torvalds goto xdr_error; 31737539bbabSDavid Howells if ((status = decode_attr_owner(xdr, bitmap, server->nfs_client, &fattr->uid)) != 0) 31741da177e4SLinus Torvalds goto xdr_error; 31757539bbabSDavid Howells if ((status = decode_attr_group(xdr, bitmap, server->nfs_client, &fattr->gid)) != 0) 31761da177e4SLinus Torvalds goto xdr_error; 31771da177e4SLinus Torvalds if ((status = decode_attr_rdev(xdr, bitmap, &fattr->rdev)) != 0) 31781da177e4SLinus Torvalds goto xdr_error; 31791da177e4SLinus Torvalds if ((status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used)) != 0) 31801da177e4SLinus Torvalds goto xdr_error; 31811da177e4SLinus Torvalds if ((status = decode_attr_time_access(xdr, bitmap, &fattr->atime)) != 0) 31821da177e4SLinus Torvalds goto xdr_error; 31831da177e4SLinus Torvalds if ((status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime)) != 0) 31841da177e4SLinus Torvalds goto xdr_error; 31851da177e4SLinus Torvalds if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0) 31861da177e4SLinus Torvalds goto xdr_error; 318799baf625SManoj Naik if ((status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid)) != 0) 318899baf625SManoj Naik goto xdr_error; 318999baf625SManoj Naik if (fattr->fileid == 0 && fileid != 0) 319099baf625SManoj Naik fattr->fileid = fileid; 319133801147STrond Myklebust if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) 31921da177e4SLinus Torvalds fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4; 31931da177e4SLinus Torvalds xdr_error: 319416c32b71STrond Myklebust dprintk("%s: xdr returned %d\n", __FUNCTION__, -status); 31951da177e4SLinus Torvalds return status; 31961da177e4SLinus Torvalds } 31971da177e4SLinus Torvalds 31981da177e4SLinus Torvalds 31991da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 32001da177e4SLinus Torvalds { 32018687b63aSAl Viro __be32 *savep; 32021da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 32031da177e4SLinus Torvalds int status; 32041da177e4SLinus Torvalds 32051da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 32061da177e4SLinus Torvalds goto xdr_error; 32071da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 32081da177e4SLinus Torvalds goto xdr_error; 32091da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 32101da177e4SLinus Torvalds goto xdr_error; 32111da177e4SLinus Torvalds 32121da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 32131da177e4SLinus Torvalds 32141da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 32151da177e4SLinus Torvalds goto xdr_error; 32161da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 32171da177e4SLinus Torvalds goto xdr_error; 32181da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 32191da177e4SLinus Torvalds goto xdr_error; 32201da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 32211da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 32221da177e4SLinus Torvalds goto xdr_error; 32231da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 32241da177e4SLinus Torvalds 32251da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 32261da177e4SLinus Torvalds xdr_error: 322716c32b71STrond Myklebust dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status); 32281da177e4SLinus Torvalds return status; 32291da177e4SLinus Torvalds } 32301da177e4SLinus Torvalds 32311da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 32321da177e4SLinus Torvalds { 32338687b63aSAl Viro __be32 *p; 32341da177e4SLinus Torvalds uint32_t len; 32351da177e4SLinus Torvalds int status; 32361da177e4SLinus Torvalds 32379936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 32389936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 32399936781dSTrond Myklebust 32401da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 32411da177e4SLinus Torvalds if (status) 32421da177e4SLinus Torvalds return status; 32431da177e4SLinus Torvalds 32441da177e4SLinus Torvalds READ_BUF(4); 32451da177e4SLinus Torvalds READ32(len); 32461da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 32471da177e4SLinus Torvalds return -EIO; 32481da177e4SLinus Torvalds fh->size = len; 32491da177e4SLinus Torvalds READ_BUF(len); 32501da177e4SLinus Torvalds COPYMEM(fh->data, len); 32511da177e4SLinus Torvalds return 0; 32521da177e4SLinus Torvalds } 32531da177e4SLinus Torvalds 32541da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 32551da177e4SLinus Torvalds { 32561da177e4SLinus Torvalds int status; 32571da177e4SLinus Torvalds 32581da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 32591da177e4SLinus Torvalds if (status) 32601da177e4SLinus Torvalds return status; 32611da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 32621da177e4SLinus Torvalds } 32631da177e4SLinus Torvalds 32641da177e4SLinus Torvalds /* 32651da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 32661da177e4SLinus Torvalds */ 3267911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 32681da177e4SLinus Torvalds { 3269911d1aafSTrond Myklebust uint64_t offset, length, clientid; 32708687b63aSAl Viro __be32 *p; 3271911d1aafSTrond Myklebust uint32_t namelen, type; 32721da177e4SLinus Torvalds 32731da177e4SLinus Torvalds READ_BUF(32); 3274911d1aafSTrond Myklebust READ64(offset); 3275911d1aafSTrond Myklebust READ64(length); 3276911d1aafSTrond Myklebust READ32(type); 3277911d1aafSTrond Myklebust if (fl != NULL) { 3278911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3279911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3280911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3281911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3282911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3283911d1aafSTrond Myklebust if (type & 1) 3284911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3285911d1aafSTrond Myklebust fl->fl_pid = 0; 3286911d1aafSTrond Myklebust } 3287911d1aafSTrond Myklebust READ64(clientid); 32881da177e4SLinus Torvalds READ32(namelen); 32891da177e4SLinus Torvalds READ_BUF(namelen); 32901da177e4SLinus Torvalds return -NFS4ERR_DENIED; 32911da177e4SLinus Torvalds } 32921da177e4SLinus Torvalds 3293911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 32941da177e4SLinus Torvalds { 32958687b63aSAl Viro __be32 *p; 32961da177e4SLinus Torvalds int status; 32971da177e4SLinus Torvalds 32981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 32991da177e4SLinus Torvalds if (status == 0) { 33008ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33018ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33021da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3303911d1aafSTrond Myklebust return decode_lock_denied(xdr, NULL); 33041da177e4SLinus Torvalds return status; 33051da177e4SLinus Torvalds } 33061da177e4SLinus Torvalds 3307911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 33081da177e4SLinus Torvalds { 33091da177e4SLinus Torvalds int status; 33101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 33111da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3312911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 33131da177e4SLinus Torvalds return status; 33141da177e4SLinus Torvalds } 33151da177e4SLinus Torvalds 3316911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 33171da177e4SLinus Torvalds { 33188687b63aSAl Viro __be32 *p; 33191da177e4SLinus Torvalds int status; 33201da177e4SLinus Torvalds 33211da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 33221da177e4SLinus Torvalds if (status == 0) { 33238ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33248ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33251da177e4SLinus Torvalds } 33261da177e4SLinus Torvalds return status; 33271da177e4SLinus Torvalds } 33281da177e4SLinus Torvalds 33291da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 33301da177e4SLinus Torvalds { 33311da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 33321da177e4SLinus Torvalds } 33331da177e4SLinus Torvalds 33341da177e4SLinus Torvalds /* This is too sick! */ 33351da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 33361da177e4SLinus Torvalds { 33378687b63aSAl Viro __be32 *p; 33381da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 33391da177e4SLinus Torvalds 33401da177e4SLinus Torvalds READ_BUF(12); 33411da177e4SLinus Torvalds READ32(limit_type); 33421da177e4SLinus Torvalds switch (limit_type) { 33431da177e4SLinus Torvalds case 1: 33441da177e4SLinus Torvalds READ64(*maxsize); 33451da177e4SLinus Torvalds break; 33461da177e4SLinus Torvalds case 2: 33471da177e4SLinus Torvalds READ32(nblocks); 33481da177e4SLinus Torvalds READ32(blocksize); 33491da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 33501da177e4SLinus Torvalds } 33511da177e4SLinus Torvalds return 0; 33521da177e4SLinus Torvalds } 33531da177e4SLinus Torvalds 33541da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 33551da177e4SLinus Torvalds { 33568687b63aSAl Viro __be32 *p; 33571da177e4SLinus Torvalds uint32_t delegation_type; 33581da177e4SLinus Torvalds 33591da177e4SLinus Torvalds READ_BUF(4); 33601da177e4SLinus Torvalds READ32(delegation_type); 33611da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 33621da177e4SLinus Torvalds res->delegation_type = 0; 33631da177e4SLinus Torvalds return 0; 33641da177e4SLinus Torvalds } 33658ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE+4); 33668ae20abdSTrond Myklebust COPYMEM(res->delegation.data, NFS4_STATEID_SIZE); 33671da177e4SLinus Torvalds READ32(res->do_recall); 33681da177e4SLinus Torvalds switch (delegation_type) { 33691da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 33701da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 33711da177e4SLinus Torvalds break; 33721da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 33731da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 33741da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 33751da177e4SLinus Torvalds return -EIO; 33761da177e4SLinus Torvalds } 33777539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 33781da177e4SLinus Torvalds } 33791da177e4SLinus Torvalds 33801da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 33811da177e4SLinus Torvalds { 33828687b63aSAl Viro __be32 *p; 3383aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 33841da177e4SLinus Torvalds int status; 33851da177e4SLinus Torvalds 33861da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 33871da177e4SLinus Torvalds if (status) 33881da177e4SLinus Torvalds return status; 33898ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 33908ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 33911da177e4SLinus Torvalds 33921da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 33931da177e4SLinus Torvalds 33941da177e4SLinus Torvalds READ_BUF(8); 33951da177e4SLinus Torvalds READ32(res->rflags); 33961da177e4SLinus Torvalds READ32(bmlen); 33971da177e4SLinus Torvalds if (bmlen > 10) 33981da177e4SLinus Torvalds goto xdr_error; 33991da177e4SLinus Torvalds 34001da177e4SLinus Torvalds READ_BUF(bmlen << 2); 3401aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 3402aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 3403aa53ed54SJeff Layton READ32(res->attrset[i]); 3404aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 3405aa53ed54SJeff Layton res->attrset[i] = 0; 3406aa53ed54SJeff Layton 34071da177e4SLinus Torvalds return decode_delegation(xdr, res); 34081da177e4SLinus Torvalds xdr_error: 340916c32b71STrond Myklebust dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen); 34101da177e4SLinus Torvalds return -EIO; 34111da177e4SLinus Torvalds } 34121da177e4SLinus Torvalds 34131da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 34141da177e4SLinus Torvalds { 34158687b63aSAl Viro __be32 *p; 34161da177e4SLinus Torvalds int status; 34171da177e4SLinus Torvalds 34181da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 34191da177e4SLinus Torvalds if (status) 34201da177e4SLinus Torvalds return status; 34218ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 34228ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 34231da177e4SLinus Torvalds return 0; 34241da177e4SLinus Torvalds } 34251da177e4SLinus Torvalds 34261da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 34271da177e4SLinus Torvalds { 34288687b63aSAl Viro __be32 *p; 34291da177e4SLinus Torvalds int status; 34301da177e4SLinus Torvalds 34311da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 34321da177e4SLinus Torvalds if (status) 34331da177e4SLinus Torvalds return status; 34348ae20abdSTrond Myklebust READ_BUF(NFS4_STATEID_SIZE); 34358ae20abdSTrond Myklebust COPYMEM(res->stateid.data, NFS4_STATEID_SIZE); 34361da177e4SLinus Torvalds return 0; 34371da177e4SLinus Torvalds } 34381da177e4SLinus Torvalds 34391da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 34401da177e4SLinus Torvalds { 34411da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 34421da177e4SLinus Torvalds } 34431da177e4SLinus Torvalds 34441da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 34451da177e4SLinus Torvalds { 34461da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 34471da177e4SLinus Torvalds } 34481da177e4SLinus Torvalds 34491da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 34501da177e4SLinus Torvalds { 34511da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 34528687b63aSAl Viro __be32 *p; 34531da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 34541da177e4SLinus Torvalds int status; 34551da177e4SLinus Torvalds 34561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 34571da177e4SLinus Torvalds if (status) 34581da177e4SLinus Torvalds return status; 34591da177e4SLinus Torvalds READ_BUF(8); 34601da177e4SLinus Torvalds READ32(eof); 34611da177e4SLinus Torvalds READ32(count); 34621da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 34631da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 34641da177e4SLinus Torvalds if (count > recvd) { 3465fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 34661da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 34671da177e4SLinus Torvalds count = recvd; 34681da177e4SLinus Torvalds eof = 0; 34691da177e4SLinus Torvalds } 34701da177e4SLinus Torvalds xdr_read_pages(xdr, count); 34711da177e4SLinus Torvalds res->eof = eof; 34721da177e4SLinus Torvalds res->count = count; 34731da177e4SLinus Torvalds return 0; 34741da177e4SLinus Torvalds } 34751da177e4SLinus Torvalds 34761da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 34771da177e4SLinus Torvalds { 34781da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 34791da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 34801da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3481bcecff77SChuck Lever size_t hdrlen; 3482bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 34838687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 3484bcecff77SChuck Lever unsigned int nr; 3485bcecff77SChuck Lever int status; 34861da177e4SLinus Torvalds 34871da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 34881da177e4SLinus Torvalds if (status) 34891da177e4SLinus Torvalds return status; 34901da177e4SLinus Torvalds READ_BUF(8); 34911da177e4SLinus Torvalds COPYMEM(readdir->verifier.data, 8); 3492eadf4598STrond Myklebust dprintk("%s: verifier = 0x%x%x\n", 3493eadf4598STrond Myklebust __FUNCTION__, 3494eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 3495eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 3496eadf4598STrond Myklebust 34971da177e4SLinus Torvalds 34981da177e4SLinus Torvalds hdrlen = (char *) p - (char *) iov->iov_base; 34991da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 35001da177e4SLinus Torvalds if (pglen > recvd) 35011da177e4SLinus Torvalds pglen = recvd; 35021da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 35031da177e4SLinus Torvalds 35041da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 35058687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 3506e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 35071da177e4SLinus Torvalds entry = p; 35081da177e4SLinus Torvalds for (nr = 0; *p++; nr++) { 3509bcecff77SChuck Lever u32 len, attrlen, xlen; 3510e8896495SDavid Howells if (end - p < 3) 35111da177e4SLinus Torvalds goto short_pkt; 3512eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 35131da177e4SLinus Torvalds p += 2; /* cookie */ 35141da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 35151da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 3516fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 3517fe82a183SChuck Lever len); 35181da177e4SLinus Torvalds goto err_unmap; 35191da177e4SLinus Torvalds } 3520e8896495SDavid Howells xlen = XDR_QUADLEN(len); 3521e8896495SDavid Howells if (end - p < xlen + 1) 3522e8896495SDavid Howells goto short_pkt; 3523eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 3524e8896495SDavid Howells p += xlen; 35251da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 3526e8896495SDavid Howells if (end - p < len + 1) 3527e8896495SDavid Howells goto short_pkt; 35281da177e4SLinus Torvalds p += len; 35291da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 3530e8896495SDavid Howells if (end - p < attrlen + 2) 35311da177e4SLinus Torvalds goto short_pkt; 3532e8896495SDavid Howells p += attrlen; /* attributes */ 35331da177e4SLinus Torvalds entry = p; 35341da177e4SLinus Torvalds } 35351da177e4SLinus Torvalds if (!nr && (entry[0] != 0 || entry[1] == 0)) 35361da177e4SLinus Torvalds goto short_pkt; 35371da177e4SLinus Torvalds out: 35381da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35391da177e4SLinus Torvalds return 0; 35401da177e4SLinus Torvalds short_pkt: 3541eadf4598STrond Myklebust dprintk("%s: short packet at entry %d\n", __FUNCTION__, nr); 35421da177e4SLinus Torvalds entry[0] = entry[1] = 0; 35431da177e4SLinus Torvalds /* truncate listing ? */ 35441da177e4SLinus Torvalds if (!nr) { 3545fe82a183SChuck Lever dprintk("NFS: readdir reply truncated!\n"); 35461da177e4SLinus Torvalds entry[1] = 1; 35471da177e4SLinus Torvalds } 35481da177e4SLinus Torvalds goto out; 35491da177e4SLinus Torvalds err_unmap: 35501da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35511da177e4SLinus Torvalds return -errno_NFSERR_IO; 35521da177e4SLinus Torvalds } 35531da177e4SLinus Torvalds 35541da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 35551da177e4SLinus Torvalds { 35561da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 35571da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 3558bcecff77SChuck Lever size_t hdrlen; 3559bcecff77SChuck Lever u32 len, recvd; 35608687b63aSAl Viro __be32 *p; 35611da177e4SLinus Torvalds char *kaddr; 35621da177e4SLinus Torvalds int status; 35631da177e4SLinus Torvalds 35641da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 35651da177e4SLinus Torvalds if (status) 35661da177e4SLinus Torvalds return status; 35671da177e4SLinus Torvalds 35681da177e4SLinus Torvalds /* Convert length of symlink */ 35691da177e4SLinus Torvalds READ_BUF(4); 35701da177e4SLinus Torvalds READ32(len); 35711da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 3572fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 35731da177e4SLinus Torvalds return -ENAMETOOLONG; 35741da177e4SLinus Torvalds } 35751da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 35761da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 35771da177e4SLinus Torvalds if (recvd < len) { 3578fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 35791da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 35801da177e4SLinus Torvalds return -EIO; 35811da177e4SLinus Torvalds } 35821da177e4SLinus Torvalds xdr_read_pages(xdr, len); 35831da177e4SLinus Torvalds /* 35841da177e4SLinus Torvalds * The XDR encode routine has set things up so that 35851da177e4SLinus Torvalds * the link text will be copied directly into the 35861da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 35871da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 35881da177e4SLinus Torvalds * null-termination). 35891da177e4SLinus Torvalds */ 35901da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 35911da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 35921da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 35931da177e4SLinus Torvalds return 0; 35941da177e4SLinus Torvalds } 35951da177e4SLinus Torvalds 35961da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35971da177e4SLinus Torvalds { 35981da177e4SLinus Torvalds int status; 35991da177e4SLinus Torvalds 36001da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 36011da177e4SLinus Torvalds if (status) 36021da177e4SLinus Torvalds goto out; 36031da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 36041da177e4SLinus Torvalds out: 36051da177e4SLinus Torvalds return status; 36061da177e4SLinus Torvalds } 36071da177e4SLinus Torvalds 36081da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 36091da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 36101da177e4SLinus Torvalds { 36111da177e4SLinus Torvalds int status; 36121da177e4SLinus Torvalds 36131da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 36141da177e4SLinus Torvalds if (status) 36151da177e4SLinus Torvalds goto out; 36161da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 36171da177e4SLinus Torvalds goto out; 36181da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 36191da177e4SLinus Torvalds out: 36201da177e4SLinus Torvalds return status; 36211da177e4SLinus Torvalds } 36221da177e4SLinus Torvalds 36231da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 36241da177e4SLinus Torvalds { 36251da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 36261da177e4SLinus Torvalds } 36271da177e4SLinus Torvalds 362856ae19f3STrond Myklebust static int 362956ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 363056ae19f3STrond Myklebust { 363156ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 363256ae19f3STrond Myklebust } 363356ae19f3STrond Myklebust 3634029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 3635029d105eSJ. Bruce Fields size_t *acl_len) 3636029d105eSJ. Bruce Fields { 36378687b63aSAl Viro __be32 *savep; 3638029d105eSJ. Bruce Fields uint32_t attrlen, 3639029d105eSJ. Bruce Fields bitmap[2] = {0}; 3640029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 3641029d105eSJ. Bruce Fields int status; 3642029d105eSJ. Bruce Fields 3643029d105eSJ. Bruce Fields *acl_len = 0; 3644029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 3645029d105eSJ. Bruce Fields goto out; 3646029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 3647029d105eSJ. Bruce Fields goto out; 3648029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 3649029d105eSJ. Bruce Fields goto out; 3650029d105eSJ. Bruce Fields 3651029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 3652029d105eSJ. Bruce Fields return -EIO; 3653029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 3654bcecff77SChuck Lever size_t hdrlen; 3655bcecff77SChuck Lever u32 recvd; 3656029d105eSJ. Bruce Fields 3657029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 3658029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 3659029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 3660029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 3661029d105eSJ. Bruce Fields if (attrlen > recvd) { 3662fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 3663029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 3664029d105eSJ. Bruce Fields attrlen, recvd); 3665029d105eSJ. Bruce Fields return -EINVAL; 3666029d105eSJ. Bruce Fields } 3667029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 3668029d105eSJ. Bruce Fields *acl_len = attrlen; 36698c233cf9SJ. Bruce Fields } else 36708c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 3671029d105eSJ. Bruce Fields 3672029d105eSJ. Bruce Fields out: 3673029d105eSJ. Bruce Fields return status; 3674029d105eSJ. Bruce Fields } 3675029d105eSJ. Bruce Fields 36761da177e4SLinus Torvalds static int 36771da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 36781da177e4SLinus Torvalds { 36791da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 36801da177e4SLinus Torvalds } 36811da177e4SLinus Torvalds 36821da177e4SLinus Torvalds static int decode_setattr(struct xdr_stream *xdr, struct nfs_setattrres *res) 36831da177e4SLinus Torvalds { 36848687b63aSAl Viro __be32 *p; 36851da177e4SLinus Torvalds uint32_t bmlen; 36861da177e4SLinus Torvalds int status; 36871da177e4SLinus Torvalds 36881da177e4SLinus Torvalds 36891da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 36901da177e4SLinus Torvalds if (status) 36911da177e4SLinus Torvalds return status; 36921da177e4SLinus Torvalds READ_BUF(4); 36931da177e4SLinus Torvalds READ32(bmlen); 36941da177e4SLinus Torvalds READ_BUF(bmlen << 2); 36951da177e4SLinus Torvalds return 0; 36961da177e4SLinus Torvalds } 36971da177e4SLinus Torvalds 3698adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 36991da177e4SLinus Torvalds { 37008687b63aSAl Viro __be32 *p; 37011da177e4SLinus Torvalds uint32_t opnum; 37021da177e4SLinus Torvalds int32_t nfserr; 37031da177e4SLinus Torvalds 37041da177e4SLinus Torvalds READ_BUF(8); 37051da177e4SLinus Torvalds READ32(opnum); 37061da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 3707fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 37081da177e4SLinus Torvalds " %d\n", opnum); 37091da177e4SLinus Torvalds return -EIO; 37101da177e4SLinus Torvalds } 37111da177e4SLinus Torvalds READ32(nfserr); 37121da177e4SLinus Torvalds if (nfserr == NFS_OK) { 37138ae20abdSTrond Myklebust READ_BUF(8 + NFS4_VERIFIER_SIZE); 37141da177e4SLinus Torvalds READ64(clp->cl_clientid); 37158ae20abdSTrond Myklebust COPYMEM(clp->cl_confirm.data, NFS4_VERIFIER_SIZE); 37161da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 37171da177e4SLinus Torvalds uint32_t len; 37181da177e4SLinus Torvalds 37191da177e4SLinus Torvalds /* skip netid string */ 37201da177e4SLinus Torvalds READ_BUF(4); 37211da177e4SLinus Torvalds READ32(len); 37221da177e4SLinus Torvalds READ_BUF(len); 37231da177e4SLinus Torvalds 37241da177e4SLinus Torvalds /* skip uaddr string */ 37251da177e4SLinus Torvalds READ_BUF(4); 37261da177e4SLinus Torvalds READ32(len); 37271da177e4SLinus Torvalds READ_BUF(len); 37281da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 37291da177e4SLinus Torvalds } else 37300a8ea437SDavid Howells return -nfs4_stat_to_errno(nfserr); 37311da177e4SLinus Torvalds 37321da177e4SLinus Torvalds return 0; 37331da177e4SLinus Torvalds } 37341da177e4SLinus Torvalds 37351da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 37361da177e4SLinus Torvalds { 37371da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 37381da177e4SLinus Torvalds } 37391da177e4SLinus Torvalds 37401da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 37411da177e4SLinus Torvalds { 37428687b63aSAl Viro __be32 *p; 37431da177e4SLinus Torvalds int status; 37441da177e4SLinus Torvalds 37451da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 37461da177e4SLinus Torvalds if (status) 37471da177e4SLinus Torvalds return status; 37481da177e4SLinus Torvalds 37491da177e4SLinus Torvalds READ_BUF(16); 37501da177e4SLinus Torvalds READ32(res->count); 37511da177e4SLinus Torvalds READ32(res->verf->committed); 37521da177e4SLinus Torvalds COPYMEM(res->verf->verifier, 8); 37531da177e4SLinus Torvalds return 0; 37541da177e4SLinus Torvalds } 37551da177e4SLinus Torvalds 37561da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 37571da177e4SLinus Torvalds { 37581da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 37591da177e4SLinus Torvalds } 37601da177e4SLinus Torvalds 37611da177e4SLinus Torvalds /* 37621da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 37631da177e4SLinus Torvalds */ 37648687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 37651da177e4SLinus Torvalds { 37661da177e4SLinus Torvalds struct xdr_stream xdr; 37671da177e4SLinus Torvalds struct compound_hdr hdr; 37681da177e4SLinus Torvalds int status; 37691da177e4SLinus Torvalds 37701da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37711da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 37721da177e4SLinus Torvalds if (status) 37731da177e4SLinus Torvalds goto out; 37741da177e4SLinus Torvalds status = decode_putfh(&xdr); 37751da177e4SLinus Torvalds if (status) 37761da177e4SLinus Torvalds goto out; 37771da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 3778516a6af6STrond Myklebust if (status != 0) 3779516a6af6STrond Myklebust goto out; 3780516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 37811da177e4SLinus Torvalds out: 37821da177e4SLinus Torvalds return status; 37831da177e4SLinus Torvalds } 37841da177e4SLinus Torvalds 37851da177e4SLinus Torvalds /* 37861da177e4SLinus Torvalds * END OF "GENERIC" DECODE ROUTINES. 37871da177e4SLinus Torvalds */ 37881da177e4SLinus Torvalds 37891da177e4SLinus Torvalds /* 37901da177e4SLinus Torvalds * Decode ACCESS response 37911da177e4SLinus Torvalds */ 37928687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 37931da177e4SLinus Torvalds { 37941da177e4SLinus Torvalds struct xdr_stream xdr; 37951da177e4SLinus Torvalds struct compound_hdr hdr; 37961da177e4SLinus Torvalds int status; 37971da177e4SLinus Torvalds 37981da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 37991da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38001da177e4SLinus Torvalds goto out; 380176b32999STrond Myklebust status = decode_putfh(&xdr); 380276b32999STrond Myklebust if (status != 0) 380376b32999STrond Myklebust goto out; 38041da177e4SLinus Torvalds status = decode_access(&xdr, res); 380576b32999STrond Myklebust if (status != 0) 380676b32999STrond Myklebust goto out; 380776b32999STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 38081da177e4SLinus Torvalds out: 38091da177e4SLinus Torvalds return status; 38101da177e4SLinus Torvalds } 38111da177e4SLinus Torvalds 38121da177e4SLinus Torvalds /* 38131da177e4SLinus Torvalds * Decode LOOKUP response 38141da177e4SLinus Torvalds */ 38158687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 38161da177e4SLinus Torvalds { 38171da177e4SLinus Torvalds struct xdr_stream xdr; 38181da177e4SLinus Torvalds struct compound_hdr hdr; 38191da177e4SLinus Torvalds int status; 38201da177e4SLinus Torvalds 38211da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38221da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38231da177e4SLinus Torvalds goto out; 38241da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38251da177e4SLinus Torvalds goto out; 38261da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 38271da177e4SLinus Torvalds goto out; 38281da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 38291da177e4SLinus Torvalds goto out; 38301da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38311da177e4SLinus Torvalds out: 38321da177e4SLinus Torvalds return status; 38331da177e4SLinus Torvalds } 38341da177e4SLinus Torvalds 38351da177e4SLinus Torvalds /* 38361da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 38371da177e4SLinus Torvalds */ 38388687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 38391da177e4SLinus Torvalds { 38401da177e4SLinus Torvalds struct xdr_stream xdr; 38411da177e4SLinus Torvalds struct compound_hdr hdr; 38421da177e4SLinus Torvalds int status; 38431da177e4SLinus Torvalds 38441da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38451da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38461da177e4SLinus Torvalds goto out; 38471da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 38481da177e4SLinus Torvalds goto out; 38491da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 38501da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 38511da177e4SLinus Torvalds out: 38521da177e4SLinus Torvalds return status; 38531da177e4SLinus Torvalds } 38541da177e4SLinus Torvalds 38551da177e4SLinus Torvalds /* 38561da177e4SLinus Torvalds * Decode REMOVE response 38571da177e4SLinus Torvalds */ 38584fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 38591da177e4SLinus Torvalds { 38601da177e4SLinus Torvalds struct xdr_stream xdr; 38611da177e4SLinus Torvalds struct compound_hdr hdr; 38621da177e4SLinus Torvalds int status; 38631da177e4SLinus Torvalds 38641da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38651da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38661da177e4SLinus Torvalds goto out; 386716e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 386816e42959STrond Myklebust goto out; 386916e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 387016e42959STrond Myklebust goto out; 38714fdc17b2STrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server); 38721da177e4SLinus Torvalds out: 38731da177e4SLinus Torvalds return status; 38741da177e4SLinus Torvalds } 38751da177e4SLinus Torvalds 38761da177e4SLinus Torvalds /* 38771da177e4SLinus Torvalds * Decode RENAME response 38781da177e4SLinus Torvalds */ 38798687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 38801da177e4SLinus Torvalds { 38811da177e4SLinus Torvalds struct xdr_stream xdr; 38821da177e4SLinus Torvalds struct compound_hdr hdr; 38831da177e4SLinus Torvalds int status; 38841da177e4SLinus Torvalds 38851da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 38861da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 38871da177e4SLinus Torvalds goto out; 38881da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38891da177e4SLinus Torvalds goto out; 38901da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 38911da177e4SLinus Torvalds goto out; 38921da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 38931da177e4SLinus Torvalds goto out; 38946caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 38956caf2c82STrond Myklebust goto out; 38966caf2c82STrond Myklebust /* Current FH is target directory */ 38976caf2c82STrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0) 38986caf2c82STrond Myklebust goto out; 38996caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 39006caf2c82STrond Myklebust goto out; 39016caf2c82STrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server); 39021da177e4SLinus Torvalds out: 39031da177e4SLinus Torvalds return status; 39041da177e4SLinus Torvalds } 39051da177e4SLinus Torvalds 39061da177e4SLinus Torvalds /* 39071da177e4SLinus Torvalds * Decode LINK response 39081da177e4SLinus Torvalds */ 39098687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 39101da177e4SLinus Torvalds { 39111da177e4SLinus Torvalds struct xdr_stream xdr; 39121da177e4SLinus Torvalds struct compound_hdr hdr; 39131da177e4SLinus Torvalds int status; 39141da177e4SLinus Torvalds 39151da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39161da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 39171da177e4SLinus Torvalds goto out; 39181da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39191da177e4SLinus Torvalds goto out; 39201da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 39211da177e4SLinus Torvalds goto out; 39221da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39231da177e4SLinus Torvalds goto out; 392491ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 392591ba2eeeSTrond Myklebust goto out; 392691ba2eeeSTrond Myklebust /* 392791ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 392891ba2eeeSTrond Myklebust * filehandle. 392991ba2eeeSTrond Myklebust */ 393091ba2eeeSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0) 393191ba2eeeSTrond Myklebust goto out; 393291ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 393391ba2eeeSTrond Myklebust goto out; 393491ba2eeeSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 39351da177e4SLinus Torvalds out: 39361da177e4SLinus Torvalds return status; 39371da177e4SLinus Torvalds } 39381da177e4SLinus Torvalds 39391da177e4SLinus Torvalds /* 39401da177e4SLinus Torvalds * Decode CREATE response 39411da177e4SLinus Torvalds */ 39428687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39431da177e4SLinus Torvalds { 39441da177e4SLinus Torvalds struct xdr_stream xdr; 39451da177e4SLinus Torvalds struct compound_hdr hdr; 39461da177e4SLinus Torvalds int status; 39471da177e4SLinus Torvalds 39481da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39491da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 39501da177e4SLinus Torvalds goto out; 39511da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 39521da177e4SLinus Torvalds goto out; 395356ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 395456ae19f3STrond Myklebust goto out; 39551da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 39561da177e4SLinus Torvalds goto out; 39571da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 39581da177e4SLinus Torvalds goto out; 395956ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server) != 0) 396056ae19f3STrond Myklebust goto out; 396156ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 396256ae19f3STrond Myklebust goto out; 396356ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server); 39641da177e4SLinus Torvalds out: 39651da177e4SLinus Torvalds return status; 39661da177e4SLinus Torvalds } 39671da177e4SLinus Torvalds 39681da177e4SLinus Torvalds /* 39691da177e4SLinus Torvalds * Decode SYMLINK response 39701da177e4SLinus Torvalds */ 39718687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 39721da177e4SLinus Torvalds { 39731da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 39741da177e4SLinus Torvalds } 39751da177e4SLinus Torvalds 39761da177e4SLinus Torvalds /* 39771da177e4SLinus Torvalds * Decode GETATTR response 39781da177e4SLinus Torvalds */ 39798687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 39801da177e4SLinus Torvalds { 39811da177e4SLinus Torvalds struct xdr_stream xdr; 39821da177e4SLinus Torvalds struct compound_hdr hdr; 39831da177e4SLinus Torvalds int status; 39841da177e4SLinus Torvalds 39851da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 39861da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 39871da177e4SLinus Torvalds if (status) 39881da177e4SLinus Torvalds goto out; 39891da177e4SLinus Torvalds status = decode_putfh(&xdr); 39901da177e4SLinus Torvalds if (status) 39911da177e4SLinus Torvalds goto out; 39921da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 39931da177e4SLinus Torvalds out: 39941da177e4SLinus Torvalds return status; 39951da177e4SLinus Torvalds 39961da177e4SLinus Torvalds } 39971da177e4SLinus Torvalds 399823ec6965SJ. Bruce Fields /* 399923ec6965SJ. Bruce Fields * Encode an SETACL request 400023ec6965SJ. Bruce Fields */ 400123ec6965SJ. Bruce Fields static int 40028687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 400323ec6965SJ. Bruce Fields { 400423ec6965SJ. Bruce Fields struct xdr_stream xdr; 400523ec6965SJ. Bruce Fields struct compound_hdr hdr = { 400623ec6965SJ. Bruce Fields .nops = 2, 400723ec6965SJ. Bruce Fields }; 400823ec6965SJ. Bruce Fields int status; 400923ec6965SJ. Bruce Fields 401023ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 401123ec6965SJ. Bruce Fields encode_compound_hdr(&xdr, &hdr); 401223ec6965SJ. Bruce Fields status = encode_putfh(&xdr, args->fh); 401323ec6965SJ. Bruce Fields if (status) 401423ec6965SJ. Bruce Fields goto out; 401523ec6965SJ. Bruce Fields status = encode_setacl(&xdr, args); 401623ec6965SJ. Bruce Fields out: 401723ec6965SJ. Bruce Fields return status; 401823ec6965SJ. Bruce Fields } 401923ec6965SJ. Bruce Fields /* 402023ec6965SJ. Bruce Fields * Decode SETACL response 402123ec6965SJ. Bruce Fields */ 402223ec6965SJ. Bruce Fields static int 40238687b63aSAl Viro nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, void *res) 402423ec6965SJ. Bruce Fields { 402523ec6965SJ. Bruce Fields struct xdr_stream xdr; 402623ec6965SJ. Bruce Fields struct compound_hdr hdr; 402723ec6965SJ. Bruce Fields int status; 402823ec6965SJ. Bruce Fields 402923ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 403023ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 403123ec6965SJ. Bruce Fields if (status) 403223ec6965SJ. Bruce Fields goto out; 403323ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 403423ec6965SJ. Bruce Fields if (status) 403523ec6965SJ. Bruce Fields goto out; 403623ec6965SJ. Bruce Fields status = decode_setattr(&xdr, res); 403723ec6965SJ. Bruce Fields out: 403823ec6965SJ. Bruce Fields return status; 403923ec6965SJ. Bruce Fields } 40401da177e4SLinus Torvalds 40411da177e4SLinus Torvalds /* 4042029d105eSJ. Bruce Fields * Decode GETACL response 4043029d105eSJ. Bruce Fields */ 4044029d105eSJ. Bruce Fields static int 40458687b63aSAl Viro nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, size_t *acl_len) 4046029d105eSJ. Bruce Fields { 4047029d105eSJ. Bruce Fields struct xdr_stream xdr; 4048029d105eSJ. Bruce Fields struct compound_hdr hdr; 4049029d105eSJ. Bruce Fields int status; 4050029d105eSJ. Bruce Fields 4051029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 4052029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 4053029d105eSJ. Bruce Fields if (status) 4054029d105eSJ. Bruce Fields goto out; 4055029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 4056029d105eSJ. Bruce Fields if (status) 4057029d105eSJ. Bruce Fields goto out; 4058029d105eSJ. Bruce Fields status = decode_getacl(&xdr, rqstp, acl_len); 4059029d105eSJ. Bruce Fields 4060029d105eSJ. Bruce Fields out: 4061029d105eSJ. Bruce Fields return status; 4062029d105eSJ. Bruce Fields } 4063029d105eSJ. Bruce Fields 4064029d105eSJ. Bruce Fields /* 40651da177e4SLinus Torvalds * Decode CLOSE response 40661da177e4SLinus Torvalds */ 40678687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 40681da177e4SLinus Torvalds { 40691da177e4SLinus Torvalds struct xdr_stream xdr; 40701da177e4SLinus Torvalds struct compound_hdr hdr; 40711da177e4SLinus Torvalds int status; 40721da177e4SLinus Torvalds 40731da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 40741da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 40751da177e4SLinus Torvalds if (status) 40761da177e4SLinus Torvalds goto out; 40771da177e4SLinus Torvalds status = decode_putfh(&xdr); 40781da177e4SLinus Torvalds if (status) 40791da177e4SLinus Torvalds goto out; 40801da177e4SLinus Torvalds status = decode_close(&xdr, res); 4081516a6af6STrond Myklebust if (status != 0) 4082516a6af6STrond Myklebust goto out; 4083516a6af6STrond Myklebust /* 4084516a6af6STrond Myklebust * Note: Server may do delete on close for this file 4085516a6af6STrond Myklebust * in which case the getattr call will fail with 4086516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 4087516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 4088516a6af6STrond Myklebust */ 4089516a6af6STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 40901da177e4SLinus Torvalds out: 40911da177e4SLinus Torvalds return status; 40921da177e4SLinus Torvalds } 40931da177e4SLinus Torvalds 40941da177e4SLinus Torvalds /* 40951da177e4SLinus Torvalds * Decode OPEN response 40961da177e4SLinus Torvalds */ 40978687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 40981da177e4SLinus Torvalds { 40991da177e4SLinus Torvalds struct xdr_stream xdr; 41001da177e4SLinus Torvalds struct compound_hdr hdr; 41011da177e4SLinus Torvalds int status; 41021da177e4SLinus Torvalds 41031da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41041da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41051da177e4SLinus Torvalds if (status) 41061da177e4SLinus Torvalds goto out; 41071da177e4SLinus Torvalds status = decode_putfh(&xdr); 41081da177e4SLinus Torvalds if (status) 41091da177e4SLinus Torvalds goto out; 411056ae19f3STrond Myklebust status = decode_savefh(&xdr); 411156ae19f3STrond Myklebust if (status) 411256ae19f3STrond Myklebust goto out; 41131da177e4SLinus Torvalds status = decode_open(&xdr, res); 41141da177e4SLinus Torvalds if (status) 41151da177e4SLinus Torvalds goto out; 41169936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 41171da177e4SLinus Torvalds goto out; 411856ae19f3STrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server) != 0) 411956ae19f3STrond Myklebust goto out; 4120365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 412156ae19f3STrond Myklebust goto out; 412256ae19f3STrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server); 41231da177e4SLinus Torvalds out: 41241da177e4SLinus Torvalds return status; 41251da177e4SLinus Torvalds } 41261da177e4SLinus Torvalds 41271da177e4SLinus Torvalds /* 41281da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 41291da177e4SLinus Torvalds */ 41308687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 41311da177e4SLinus Torvalds { 41321da177e4SLinus Torvalds struct xdr_stream xdr; 41331da177e4SLinus Torvalds struct compound_hdr hdr; 41341da177e4SLinus Torvalds int status; 41351da177e4SLinus Torvalds 41361da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 41371da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 41381da177e4SLinus Torvalds if (status) 41391da177e4SLinus Torvalds goto out; 41401da177e4SLinus Torvalds status = decode_putfh(&xdr); 41411da177e4SLinus Torvalds if (status) 41421da177e4SLinus Torvalds goto out; 41431da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 41441da177e4SLinus Torvalds out: 41451da177e4SLinus Torvalds return status; 41461da177e4SLinus Torvalds } 41471da177e4SLinus Torvalds 41481da177e4SLinus Torvalds /* 41491da177e4SLinus Torvalds * Decode OPEN response 41501da177e4SLinus Torvalds */ 41518687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *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_open(&xdr, res); 4165864472e9STrond Myklebust if (status) 4166864472e9STrond Myklebust goto out; 4167864472e9STrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server); 41681da177e4SLinus Torvalds out: 41691da177e4SLinus Torvalds return status; 41701da177e4SLinus Torvalds } 41711da177e4SLinus Torvalds 41721da177e4SLinus Torvalds /* 41731da177e4SLinus Torvalds * Decode SETATTR response 41741da177e4SLinus Torvalds */ 41758687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *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_setattr(&xdr, res); 41891da177e4SLinus Torvalds if (status) 41901da177e4SLinus Torvalds goto out; 41911da177e4SLinus Torvalds status = decode_getfattr(&xdr, res->fattr, res->server); 41921da177e4SLinus Torvalds if (status == NFS4ERR_DELAY) 41931da177e4SLinus Torvalds status = 0; 41941da177e4SLinus Torvalds out: 41951da177e4SLinus Torvalds return status; 41961da177e4SLinus Torvalds } 41971da177e4SLinus Torvalds 41981da177e4SLinus Torvalds /* 41991da177e4SLinus Torvalds * Decode LOCK response 42001da177e4SLinus Torvalds */ 42018687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 42021da177e4SLinus Torvalds { 42031da177e4SLinus Torvalds struct xdr_stream xdr; 42041da177e4SLinus Torvalds struct compound_hdr hdr; 42051da177e4SLinus Torvalds int status; 42061da177e4SLinus Torvalds 42071da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42081da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42091da177e4SLinus Torvalds if (status) 42101da177e4SLinus Torvalds goto out; 42111da177e4SLinus Torvalds status = decode_putfh(&xdr); 42121da177e4SLinus Torvalds if (status) 42131da177e4SLinus Torvalds goto out; 42141da177e4SLinus Torvalds status = decode_lock(&xdr, res); 42151da177e4SLinus Torvalds out: 42161da177e4SLinus Torvalds return status; 42171da177e4SLinus Torvalds } 42181da177e4SLinus Torvalds 42191da177e4SLinus Torvalds /* 42201da177e4SLinus Torvalds * Decode LOCKT response 42211da177e4SLinus Torvalds */ 42228687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 42231da177e4SLinus Torvalds { 42241da177e4SLinus Torvalds struct xdr_stream xdr; 42251da177e4SLinus Torvalds struct compound_hdr hdr; 42261da177e4SLinus Torvalds int status; 42271da177e4SLinus Torvalds 42281da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42291da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42301da177e4SLinus Torvalds if (status) 42311da177e4SLinus Torvalds goto out; 42321da177e4SLinus Torvalds status = decode_putfh(&xdr); 42331da177e4SLinus Torvalds if (status) 42341da177e4SLinus Torvalds goto out; 42351da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 42361da177e4SLinus Torvalds out: 42371da177e4SLinus Torvalds return status; 42381da177e4SLinus Torvalds } 42391da177e4SLinus Torvalds 42401da177e4SLinus Torvalds /* 42411da177e4SLinus Torvalds * Decode LOCKU response 42421da177e4SLinus Torvalds */ 42438687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 42441da177e4SLinus Torvalds { 42451da177e4SLinus Torvalds struct xdr_stream xdr; 42461da177e4SLinus Torvalds struct compound_hdr hdr; 42471da177e4SLinus Torvalds int status; 42481da177e4SLinus Torvalds 42491da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42501da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42511da177e4SLinus Torvalds if (status) 42521da177e4SLinus Torvalds goto out; 42531da177e4SLinus Torvalds status = decode_putfh(&xdr); 42541da177e4SLinus Torvalds if (status) 42551da177e4SLinus Torvalds goto out; 42561da177e4SLinus Torvalds status = decode_locku(&xdr, res); 42571da177e4SLinus Torvalds out: 42581da177e4SLinus Torvalds return status; 42591da177e4SLinus Torvalds } 42601da177e4SLinus Torvalds 42611da177e4SLinus Torvalds /* 42621da177e4SLinus Torvalds * Decode READLINK response 42631da177e4SLinus Torvalds */ 42648687b63aSAl Viro static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, void *res) 42651da177e4SLinus Torvalds { 42661da177e4SLinus Torvalds struct xdr_stream xdr; 42671da177e4SLinus Torvalds struct compound_hdr hdr; 42681da177e4SLinus Torvalds int status; 42691da177e4SLinus Torvalds 42701da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42711da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42721da177e4SLinus Torvalds if (status) 42731da177e4SLinus Torvalds goto out; 42741da177e4SLinus Torvalds status = decode_putfh(&xdr); 42751da177e4SLinus Torvalds if (status) 42761da177e4SLinus Torvalds goto out; 42771da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 42781da177e4SLinus Torvalds out: 42791da177e4SLinus Torvalds return status; 42801da177e4SLinus Torvalds } 42811da177e4SLinus Torvalds 42821da177e4SLinus Torvalds /* 42831da177e4SLinus Torvalds * Decode READDIR response 42841da177e4SLinus Torvalds */ 42858687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 42861da177e4SLinus Torvalds { 42871da177e4SLinus Torvalds struct xdr_stream xdr; 42881da177e4SLinus Torvalds struct compound_hdr hdr; 42891da177e4SLinus Torvalds int status; 42901da177e4SLinus Torvalds 42911da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 42921da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 42931da177e4SLinus Torvalds if (status) 42941da177e4SLinus Torvalds goto out; 42951da177e4SLinus Torvalds status = decode_putfh(&xdr); 42961da177e4SLinus Torvalds if (status) 42971da177e4SLinus Torvalds goto out; 42981da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 42991da177e4SLinus Torvalds out: 43001da177e4SLinus Torvalds return status; 43011da177e4SLinus Torvalds } 43021da177e4SLinus Torvalds 43031da177e4SLinus Torvalds /* 43041da177e4SLinus Torvalds * Decode Read response 43051da177e4SLinus Torvalds */ 43068687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 43071da177e4SLinus Torvalds { 43081da177e4SLinus Torvalds struct xdr_stream xdr; 43091da177e4SLinus Torvalds struct compound_hdr hdr; 43101da177e4SLinus Torvalds int status; 43111da177e4SLinus Torvalds 43121da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43131da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43141da177e4SLinus Torvalds if (status) 43151da177e4SLinus Torvalds goto out; 43161da177e4SLinus Torvalds status = decode_putfh(&xdr); 43171da177e4SLinus Torvalds if (status) 43181da177e4SLinus Torvalds goto out; 43191da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 43201da177e4SLinus Torvalds if (!status) 43211da177e4SLinus Torvalds status = res->count; 43221da177e4SLinus Torvalds out: 43231da177e4SLinus Torvalds return status; 43241da177e4SLinus Torvalds } 43251da177e4SLinus Torvalds 43261da177e4SLinus Torvalds /* 43271da177e4SLinus Torvalds * Decode WRITE response 43281da177e4SLinus Torvalds */ 43298687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 43301da177e4SLinus Torvalds { 43311da177e4SLinus Torvalds struct xdr_stream xdr; 43321da177e4SLinus Torvalds struct compound_hdr hdr; 43331da177e4SLinus Torvalds int status; 43341da177e4SLinus Torvalds 43351da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 43361da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43371da177e4SLinus Torvalds if (status) 43381da177e4SLinus Torvalds goto out; 43391da177e4SLinus Torvalds status = decode_putfh(&xdr); 43401da177e4SLinus Torvalds if (status) 43411da177e4SLinus Torvalds goto out; 43421da177e4SLinus Torvalds status = decode_write(&xdr, res); 43434f9838c7STrond Myklebust if (status) 43444f9838c7STrond Myklebust goto out; 43454f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43461da177e4SLinus Torvalds if (!status) 43471da177e4SLinus Torvalds status = res->count; 43481da177e4SLinus Torvalds out: 43491da177e4SLinus Torvalds return status; 43501da177e4SLinus Torvalds } 43511da177e4SLinus Torvalds 43521da177e4SLinus Torvalds /* 43531da177e4SLinus Torvalds * Decode COMMIT response 43541da177e4SLinus Torvalds */ 43558687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *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, &rqstp->rq_rcv_buf, p); 43621da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43631da177e4SLinus Torvalds if (status) 43641da177e4SLinus Torvalds goto out; 43651da177e4SLinus Torvalds status = decode_putfh(&xdr); 43661da177e4SLinus Torvalds if (status) 43671da177e4SLinus Torvalds goto out; 43681da177e4SLinus Torvalds status = decode_commit(&xdr, res); 43694f9838c7STrond Myklebust if (status) 43704f9838c7STrond Myklebust goto out; 43714f9838c7STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 43721da177e4SLinus Torvalds out: 43731da177e4SLinus Torvalds return status; 43741da177e4SLinus Torvalds } 43751da177e4SLinus Torvalds 43761da177e4SLinus Torvalds /* 43771da177e4SLinus Torvalds * FSINFO request 43781da177e4SLinus Torvalds */ 43798687b63aSAl Viro static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 43801da177e4SLinus Torvalds { 43811da177e4SLinus Torvalds struct xdr_stream xdr; 43821da177e4SLinus Torvalds struct compound_hdr hdr; 43831da177e4SLinus Torvalds int status; 43841da177e4SLinus Torvalds 43851da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 43861da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 43871da177e4SLinus Torvalds if (!status) 43881da177e4SLinus Torvalds status = decode_putfh(&xdr); 43891da177e4SLinus Torvalds if (!status) 43901da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 43911da177e4SLinus Torvalds if (!status) 43920a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 43931da177e4SLinus Torvalds return status; 43941da177e4SLinus Torvalds } 43951da177e4SLinus Torvalds 43961da177e4SLinus Torvalds /* 43971da177e4SLinus Torvalds * PATHCONF request 43981da177e4SLinus Torvalds */ 43998687b63aSAl Viro static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, struct nfs_pathconf *pathconf) 44001da177e4SLinus Torvalds { 44011da177e4SLinus Torvalds struct xdr_stream xdr; 44021da177e4SLinus Torvalds struct compound_hdr hdr; 44031da177e4SLinus Torvalds int status; 44041da177e4SLinus Torvalds 44051da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44061da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44071da177e4SLinus Torvalds if (!status) 44081da177e4SLinus Torvalds status = decode_putfh(&xdr); 44091da177e4SLinus Torvalds if (!status) 44101da177e4SLinus Torvalds status = decode_pathconf(&xdr, pathconf); 44111da177e4SLinus Torvalds return status; 44121da177e4SLinus Torvalds } 44131da177e4SLinus Torvalds 44141da177e4SLinus Torvalds /* 44151da177e4SLinus Torvalds * STATFS request 44161da177e4SLinus Torvalds */ 44178687b63aSAl Viro static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, struct nfs_fsstat *fsstat) 44181da177e4SLinus Torvalds { 44191da177e4SLinus Torvalds struct xdr_stream xdr; 44201da177e4SLinus Torvalds struct compound_hdr hdr; 44211da177e4SLinus Torvalds int status; 44221da177e4SLinus Torvalds 44231da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44241da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44251da177e4SLinus Torvalds if (!status) 44261da177e4SLinus Torvalds status = decode_putfh(&xdr); 44271da177e4SLinus Torvalds if (!status) 44281da177e4SLinus Torvalds status = decode_statfs(&xdr, fsstat); 44291da177e4SLinus Torvalds return status; 44301da177e4SLinus Torvalds } 44311da177e4SLinus Torvalds 44321da177e4SLinus Torvalds /* 44331da177e4SLinus Torvalds * GETATTR_BITMAP request 44341da177e4SLinus Torvalds */ 44358687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 44361da177e4SLinus Torvalds { 44371da177e4SLinus Torvalds struct xdr_stream xdr; 44381da177e4SLinus Torvalds struct compound_hdr hdr; 44391da177e4SLinus Torvalds int status; 44401da177e4SLinus Torvalds 44411da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44421da177e4SLinus Torvalds if ((status = decode_compound_hdr(&xdr, &hdr)) != 0) 44431da177e4SLinus Torvalds goto out; 44441da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 44451da177e4SLinus Torvalds goto out; 44461da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 44471da177e4SLinus Torvalds out: 44481da177e4SLinus Torvalds return status; 44491da177e4SLinus Torvalds } 44501da177e4SLinus Torvalds 44511da177e4SLinus Torvalds /* 44521da177e4SLinus Torvalds * Decode RENEW response 44531da177e4SLinus Torvalds */ 44548687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 44551da177e4SLinus Torvalds { 44561da177e4SLinus Torvalds struct xdr_stream xdr; 44571da177e4SLinus Torvalds struct compound_hdr hdr; 44581da177e4SLinus Torvalds int status; 44591da177e4SLinus Torvalds 44601da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 44611da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44621da177e4SLinus Torvalds if (!status) 44631da177e4SLinus Torvalds status = decode_renew(&xdr); 44641da177e4SLinus Torvalds return status; 44651da177e4SLinus Torvalds } 44661da177e4SLinus Torvalds 44671da177e4SLinus Torvalds /* 44681da177e4SLinus Torvalds * a SETCLIENTID request 44691da177e4SLinus Torvalds */ 44708687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 4471adfa6f98SDavid Howells struct nfs_client *clp) 44721da177e4SLinus Torvalds { 44731da177e4SLinus Torvalds struct xdr_stream xdr; 44741da177e4SLinus Torvalds struct compound_hdr hdr; 44751da177e4SLinus Torvalds int status; 44761da177e4SLinus Torvalds 44771da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44781da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44791da177e4SLinus Torvalds if (!status) 44801da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 44811da177e4SLinus Torvalds if (!status) 44820a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 44831da177e4SLinus Torvalds return status; 44841da177e4SLinus Torvalds } 44851da177e4SLinus Torvalds 44861da177e4SLinus Torvalds /* 44871da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 44881da177e4SLinus Torvalds */ 44898687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 44901da177e4SLinus Torvalds { 44911da177e4SLinus Torvalds struct xdr_stream xdr; 44921da177e4SLinus Torvalds struct compound_hdr hdr; 44931da177e4SLinus Torvalds int status; 44941da177e4SLinus Torvalds 44951da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 44961da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 44971da177e4SLinus Torvalds if (!status) 44981da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 44991da177e4SLinus Torvalds if (!status) 45001da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 45011da177e4SLinus Torvalds if (!status) 45021da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 45031da177e4SLinus Torvalds if (!status) 45040a8ea437SDavid Howells status = -nfs4_stat_to_errno(hdr.status); 45051da177e4SLinus Torvalds return status; 45061da177e4SLinus Torvalds } 45071da177e4SLinus Torvalds 45081da177e4SLinus Torvalds /* 45091da177e4SLinus Torvalds * DELEGRETURN request 45101da177e4SLinus Torvalds */ 45118687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 45121da177e4SLinus Torvalds { 45131da177e4SLinus Torvalds struct xdr_stream xdr; 45141da177e4SLinus Torvalds struct compound_hdr hdr; 45151da177e4SLinus Torvalds int status; 45161da177e4SLinus Torvalds 45171da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 45181da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 4519fa178f29STrond Myklebust if (status != 0) 4520fa178f29STrond Myklebust goto out; 45211da177e4SLinus Torvalds status = decode_putfh(&xdr); 4522fa178f29STrond Myklebust if (status != 0) 4523fa178f29STrond Myklebust goto out; 45241da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 4525fa178f29STrond Myklebust decode_getfattr(&xdr, res->fattr, res->server); 4526fa178f29STrond Myklebust out: 45271da177e4SLinus Torvalds return status; 45281da177e4SLinus Torvalds } 45291da177e4SLinus Torvalds 4530683b57b4STrond Myklebust /* 4531683b57b4STrond Myklebust * FS_LOCATIONS request 4532683b57b4STrond Myklebust */ 45338687b63aSAl Viro static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations *res) 4534683b57b4STrond Myklebust { 4535683b57b4STrond Myklebust struct xdr_stream xdr; 4536683b57b4STrond Myklebust struct compound_hdr hdr; 4537683b57b4STrond Myklebust int status; 4538683b57b4STrond Myklebust 4539683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 4540683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 4541683b57b4STrond Myklebust if (status != 0) 4542683b57b4STrond Myklebust goto out; 4543683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 4544683b57b4STrond Myklebust goto out; 4545683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 4546683b57b4STrond Myklebust goto out; 4547683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 4548683b57b4STrond Myklebust status = decode_getfattr(&xdr, &res->fattr, res->server); 4549683b57b4STrond Myklebust out: 4550683b57b4STrond Myklebust return status; 4551683b57b4STrond Myklebust } 4552683b57b4STrond Myklebust 45530dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 45541da177e4SLinus Torvalds { 45551da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 45561da177e4SLinus Torvalds uint32_t len; 45571da177e4SLinus Torvalds 45581da177e4SLinus Torvalds if (!*p++) { 45591da177e4SLinus Torvalds if (!*p) 45601da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 45611da177e4SLinus Torvalds entry->eof = 1; 45621da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 45631da177e4SLinus Torvalds } 45641da177e4SLinus Torvalds 45651da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 45661da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 45671da177e4SLinus Torvalds entry->len = ntohl(*p++); 45681da177e4SLinus Torvalds entry->name = (const char *) p; 45691da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 45701da177e4SLinus Torvalds 45711da177e4SLinus Torvalds /* 45721da177e4SLinus Torvalds * In case the server doesn't return an inode number, 45731da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 45741da177e4SLinus Torvalds * since glibc seems to choke on it...) 45751da177e4SLinus Torvalds */ 45761da177e4SLinus Torvalds entry->ino = 1; 45771da177e4SLinus Torvalds 45781da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 45791da177e4SLinus Torvalds if (len-- > 0) { 45801da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 45811da177e4SLinus Torvalds if (len-- > 0) { 45821da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 45831da177e4SLinus Torvalds p += len; 45841da177e4SLinus Torvalds } 45851da177e4SLinus Torvalds } 45861da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 45871da177e4SLinus Torvalds if (len > 0) { 458897d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 458997d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 459097d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 459197d312d0SManoj Naik p++; 459297d312d0SManoj Naik len--; 459397d312d0SManoj Naik } 45941da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 45951da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45961da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 45971da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 45981da177e4SLinus Torvalds p += len; 45991da177e4SLinus Torvalds } 46001da177e4SLinus Torvalds 46011da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 46021da177e4SLinus Torvalds return p; 46031da177e4SLinus Torvalds } 46041da177e4SLinus Torvalds 46051da177e4SLinus Torvalds /* 46061da177e4SLinus Torvalds * We need to translate between nfs status return values and 46071da177e4SLinus Torvalds * the local errno values which may not be the same. 46081da177e4SLinus Torvalds */ 46091da177e4SLinus Torvalds static struct { 46101da177e4SLinus Torvalds int stat; 46111da177e4SLinus Torvalds int errno; 46121da177e4SLinus Torvalds } nfs_errtbl[] = { 46131da177e4SLinus Torvalds { NFS4_OK, 0 }, 46141da177e4SLinus Torvalds { NFS4ERR_PERM, EPERM }, 46151da177e4SLinus Torvalds { NFS4ERR_NOENT, ENOENT }, 46161da177e4SLinus Torvalds { NFS4ERR_IO, errno_NFSERR_IO }, 46171da177e4SLinus Torvalds { NFS4ERR_NXIO, ENXIO }, 46181da177e4SLinus Torvalds { NFS4ERR_ACCESS, EACCES }, 46191da177e4SLinus Torvalds { NFS4ERR_EXIST, EEXIST }, 46201da177e4SLinus Torvalds { NFS4ERR_XDEV, EXDEV }, 46211da177e4SLinus Torvalds { NFS4ERR_NOTDIR, ENOTDIR }, 46221da177e4SLinus Torvalds { NFS4ERR_ISDIR, EISDIR }, 46231da177e4SLinus Torvalds { NFS4ERR_INVAL, EINVAL }, 46241da177e4SLinus Torvalds { NFS4ERR_FBIG, EFBIG }, 46251da177e4SLinus Torvalds { NFS4ERR_NOSPC, ENOSPC }, 46261da177e4SLinus Torvalds { NFS4ERR_ROFS, EROFS }, 46271da177e4SLinus Torvalds { NFS4ERR_MLINK, EMLINK }, 46281da177e4SLinus Torvalds { NFS4ERR_NAMETOOLONG, ENAMETOOLONG }, 46291da177e4SLinus Torvalds { NFS4ERR_NOTEMPTY, ENOTEMPTY }, 46301da177e4SLinus Torvalds { NFS4ERR_DQUOT, EDQUOT }, 46311da177e4SLinus Torvalds { NFS4ERR_STALE, ESTALE }, 46321da177e4SLinus Torvalds { NFS4ERR_BADHANDLE, EBADHANDLE }, 46336ebf3656SManoj Naik { NFS4ERR_BADOWNER, EINVAL }, 46346ebf3656SManoj Naik { NFS4ERR_BADNAME, EINVAL }, 46351da177e4SLinus Torvalds { NFS4ERR_BAD_COOKIE, EBADCOOKIE }, 46361da177e4SLinus Torvalds { NFS4ERR_NOTSUPP, ENOTSUPP }, 46371da177e4SLinus Torvalds { NFS4ERR_TOOSMALL, ETOOSMALL }, 46381da177e4SLinus Torvalds { NFS4ERR_SERVERFAULT, ESERVERFAULT }, 46391da177e4SLinus Torvalds { NFS4ERR_BADTYPE, EBADTYPE }, 46401da177e4SLinus Torvalds { NFS4ERR_LOCKED, EAGAIN }, 46411da177e4SLinus Torvalds { NFS4ERR_RESOURCE, EREMOTEIO }, 46421da177e4SLinus Torvalds { NFS4ERR_SYMLINK, ELOOP }, 46431da177e4SLinus Torvalds { NFS4ERR_OP_ILLEGAL, EOPNOTSUPP }, 46441da177e4SLinus Torvalds { NFS4ERR_DEADLOCK, EDEADLK }, 46451da177e4SLinus Torvalds { NFS4ERR_WRONGSEC, EPERM }, /* FIXME: this needs 46461da177e4SLinus Torvalds * to be handled by a 46471da177e4SLinus Torvalds * middle-layer. 46481da177e4SLinus Torvalds */ 46491da177e4SLinus Torvalds { -1, EIO } 46501da177e4SLinus Torvalds }; 46511da177e4SLinus Torvalds 46521da177e4SLinus Torvalds /* 46531da177e4SLinus Torvalds * Convert an NFS error code to a local one. 46541da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 46551da177e4SLinus Torvalds */ 46561da177e4SLinus Torvalds static int 46570a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 46581da177e4SLinus Torvalds { 46591da177e4SLinus Torvalds int i; 46601da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 46611da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 46621da177e4SLinus Torvalds return nfs_errtbl[i].errno; 46631da177e4SLinus Torvalds } 46641da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 46651da177e4SLinus Torvalds /* The server is looney tunes. */ 46661da177e4SLinus Torvalds return ESERVERFAULT; 46671da177e4SLinus Torvalds } 46681da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 46691da177e4SLinus Torvalds * handle it. 46701da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 46711da177e4SLinus Torvalds * not conflict with native Linux error codes. 46721da177e4SLinus Torvalds */ 46731da177e4SLinus Torvalds return stat; 46741da177e4SLinus Torvalds } 46751da177e4SLinus Torvalds 46761da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 46771da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 46781da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 46791da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 46801da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 46812bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 46822bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 4683cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 4684cc0175c1SChuck Lever .p_name = #proc, \ 46851da177e4SLinus Torvalds } 46861da177e4SLinus Torvalds 46871da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 46881da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 46891da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 46901da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 46911da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 46921da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 46931da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 46941da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 46951da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 46961da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 46971da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 46981da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 46991da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 47001da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 47011da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 47021da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 47031da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 47041da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 47051da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 47061da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 47071da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 47081da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 47091da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 47101da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 47111da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 47121da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 47131da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 47141da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 47151da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 47161da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 47171da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 47181da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 4719029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 472023ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 4721683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 47221da177e4SLinus Torvalds }; 47231da177e4SLinus Torvalds 47241da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 47251da177e4SLinus Torvalds .number = 4, 4726e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 47271da177e4SLinus Torvalds .procs = nfs4_procedures 47281da177e4SLinus Torvalds }; 47291da177e4SLinus Torvalds 47301da177e4SLinus Torvalds /* 47311da177e4SLinus Torvalds * Local variables: 47321da177e4SLinus Torvalds * c-basic-offset: 8 47331da177e4SLinus Torvalds * End: 47341da177e4SLinus Torvalds */ 4735