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/errno.h> 431da177e4SLinus Torvalds #include <linux/string.h> 441da177e4SLinus Torvalds #include <linux/in.h> 451da177e4SLinus Torvalds #include <linux/pagemap.h> 461da177e4SLinus Torvalds #include <linux/proc_fs.h> 471da177e4SLinus Torvalds #include <linux/kdev_t.h> 481da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 492449ea2eSAlexandros Batsakis #include <linux/sunrpc/msg_prot.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" 554882ef72SAlexandros Batsakis #include "internal.h" 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 601da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 611da177e4SLinus Torvalds 620a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 651da177e4SLinus Torvalds #ifdef DEBUG 661da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 671da177e4SLinus Torvalds #else 681da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 691da177e4SLinus Torvalds #endif 701da177e4SLinus Torvalds 711da177e4SLinus Torvalds /* lock,open owner id: 729f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 731da177e4SLinus Torvalds */ 749f958ab8STrond Myklebust #define open_owner_id_maxsz (1 + 4) 759f958ab8STrond Myklebust #define lock_owner_id_maxsz (1 + 4) 769104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 771da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 781da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 791da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 801da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 819104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 829104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 839104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 849104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 851da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 861da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 871da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 881da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 891da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 901da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 911da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 921da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9396928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9496928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 951da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 961da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 97bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 98bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 9996928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 10096928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 101bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10296928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10396928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10496928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1059104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1069104a55dSTrond Myklebust 1 + 2 + 1 + \ 1079104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1089104a55dSTrond Myklebust nfs4_group_maxsz + \ 1099104a55dSTrond Myklebust 4 + 4) 1101da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1111da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11256ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11356ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1142f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1151da177e4SLinus Torvalds #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 11) 1161da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1171da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1181da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1191da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 120cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 121cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 122cc38bac3SChuck Lever 1 /* sc_prog */ + \ 123cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 124cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 125cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1261da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1271da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1281da177e4SLinus Torvalds 2 + \ 1291da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1301da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1311da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1321da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1331da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1341da177e4SLinus Torvalds (op_decode_hdr_maxsz) 135e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 136e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1372cebf828STrond Myklebust #define encode_share_access_maxsz \ 1382cebf828STrond Myklebust (2) 1394882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1402cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1412cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1422cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1432cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1442cebf828STrond Myklebust open_owner_id_maxsz + \ 1452cebf828STrond Myklebust encode_opentype_maxsz + \ 1462cebf828STrond Myklebust encode_claim_null_maxsz) 1472cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1489104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1492cebf828STrond Myklebust decode_ace_maxsz) 1502cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1512cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1529104a55dSTrond Myklebust decode_stateid_maxsz + \ 1532cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1542cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1552cebf828STrond Myklebust decode_delegation_maxsz) 1569104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1579104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1589104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1599104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1609104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1619104a55dSTrond Myklebust decode_stateid_maxsz) 1629104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1639104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1649104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1659104a55dSTrond Myklebust encode_share_access_maxsz) 1669104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1679104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1689104a55dSTrond Myklebust decode_stateid_maxsz) 1699104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1709104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1719104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1729104a55dSTrond Myklebust decode_stateid_maxsz) 1739104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1749104a55dSTrond Myklebust encode_stateid_maxsz + \ 1759104a55dSTrond Myklebust encode_attrs_maxsz) 1769104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1779104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1789104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1799104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1809104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1819104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1829104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1839104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1849104a55dSTrond Myklebust decode_verifier_maxsz) 1859104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1869104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1879104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1889104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1899104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1909104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1919104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1929104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1939104a55dSTrond Myklebust decode_verifier_maxsz) 1941da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1951da177e4SLinus Torvalds nfs4_name_maxsz) 1966ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 1976ce18391SBenny Halevy decode_change_info_maxsz) 1981da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 1991da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2006ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2016ce18391SBenny Halevy decode_change_info_maxsz + \ 2026ce18391SBenny Halevy decode_change_info_maxsz) 2031da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2041da177e4SLinus Torvalds nfs4_name_maxsz) 2056ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 2069104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2079104a55dSTrond Myklebust 7 + \ 2089104a55dSTrond Myklebust 1 + encode_stateid_maxsz + 8) 2099104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2109104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2119104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2129104a55dSTrond Myklebust decode_lock_denied_maxsz) 2139104a55dSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 12) 2149104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2159104a55dSTrond Myklebust decode_lock_denied_maxsz) 2169104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2179104a55dSTrond Myklebust encode_stateid_maxsz + \ 2189104a55dSTrond Myklebust 4) 2199104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2209104a55dSTrond Myklebust decode_stateid_maxsz) 2219104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2229104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2231da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2241da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 22594a6d753SChuck Lever 1 + \ 22696928206SJ. Bruce Fields nfs4_fattr_maxsz) 2271da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2281da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2299104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2309104a55dSTrond Myklebust encode_attrs_maxsz) 2312cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2322cebf828STrond Myklebust decode_change_info_maxsz + \ 2332cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2349104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2359104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2361da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2371da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2389104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2399104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2409104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2419104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2429104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2439104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 244e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 245e6889620STrond Myklebust (encode_getattr_maxsz) 246e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 247e6889620STrond Myklebust (0) 2489b7b9fccSAndy Adamson 2499b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 250fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 251fc931582SAndy Adamson 25299fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 25399fe60d0SBenny Halevy encode_verifier_maxsz + \ 25499fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 25599fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 25699fe60d0SBenny Halevy 1 /* flags */ + \ 25799fe60d0SBenny Halevy 1 /* spa_how */ + \ 25899fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 25999fe60d0SBenny Halevy 1 /* zero implemetation id array */) 26099fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 26199fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 26299fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 26399fe60d0SBenny Halevy 1 /* eir_flags */ + \ 26499fe60d0SBenny Halevy 1 /* spr_how */ + \ 26599fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 26699fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 26799fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 26899fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 26999fe60d0SBenny Halevy /* eir_server_scope<> */ \ 27099fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 27199fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 27299fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 273fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 274fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 275fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 276fc931582SAndy Adamson 1 /* ca_rdma_ird */) 277fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 278fc931582SAndy Adamson 2 /* csa_clientid */ + \ 279fc931582SAndy Adamson 1 /* csa_sequence */ + \ 280fc931582SAndy Adamson 1 /* csa_flags */ + \ 281fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 282fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 283fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 284fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 285fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 286fc931582SAndy Adamson 1 /* stamp */ + \ 287fc931582SAndy Adamson 1 /* machinename.len */ + \ 288fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 289fc931582SAndy Adamson 1 /* uid */ + \ 290fc931582SAndy Adamson 1 /* gid */ + \ 291fc931582SAndy Adamson 1 /* gids.len (0) */) 292fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 293fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 294fc931582SAndy Adamson 1 /* csr_sequence */ + \ 295fc931582SAndy Adamson 1 /* csr_flags */ + \ 296fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 297fc931582SAndy Adamson decode_channel_attrs_maxsz) 2980f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 2990f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 300fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 301fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 302fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 303fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 30418019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 30518019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3069b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3079b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3089b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3099b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3109b7b9fccSAndy Adamson 3111da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3121da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3131da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3149b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3151da177e4SLinus Torvalds encode_putfh_maxsz + \ 3169104a55dSTrond Myklebust encode_read_maxsz) 3171da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3189b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3191da177e4SLinus Torvalds decode_putfh_maxsz + \ 3209104a55dSTrond Myklebust decode_read_maxsz) 3211da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3231da177e4SLinus Torvalds encode_putfh_maxsz + \ 3249104a55dSTrond Myklebust encode_readlink_maxsz) 3251da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3269b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3271da177e4SLinus Torvalds decode_putfh_maxsz + \ 3289104a55dSTrond Myklebust decode_readlink_maxsz) 3291da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3309b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3311da177e4SLinus Torvalds encode_putfh_maxsz + \ 3329104a55dSTrond Myklebust encode_readdir_maxsz) 3331da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3351da177e4SLinus Torvalds decode_putfh_maxsz + \ 3369104a55dSTrond Myklebust decode_readdir_maxsz) 3371da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3389b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3391da177e4SLinus Torvalds encode_putfh_maxsz + \ 3409104a55dSTrond Myklebust encode_write_maxsz + \ 3414f9838c7STrond Myklebust encode_getattr_maxsz) 3421da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3439b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3441da177e4SLinus Torvalds decode_putfh_maxsz + \ 3459104a55dSTrond Myklebust decode_write_maxsz + \ 3464f9838c7STrond Myklebust decode_getattr_maxsz) 3471da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3489b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3491da177e4SLinus Torvalds encode_putfh_maxsz + \ 3509104a55dSTrond Myklebust encode_commit_maxsz + \ 3514f9838c7STrond Myklebust encode_getattr_maxsz) 3521da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3541da177e4SLinus Torvalds decode_putfh_maxsz + \ 3559104a55dSTrond Myklebust decode_commit_maxsz + \ 3564f9838c7STrond Myklebust decode_getattr_maxsz) 3571da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3589b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3591da177e4SLinus Torvalds encode_putfh_maxsz + \ 3602cebf828STrond Myklebust encode_savefh_maxsz + \ 3612cebf828STrond Myklebust encode_open_maxsz + \ 3622cebf828STrond Myklebust encode_getfh_maxsz + \ 3631da177e4SLinus Torvalds encode_getattr_maxsz + \ 3642cebf828STrond Myklebust encode_restorefh_maxsz + \ 3652cebf828STrond Myklebust encode_getattr_maxsz) 3661da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 3679b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3681da177e4SLinus Torvalds decode_putfh_maxsz + \ 3692cebf828STrond Myklebust decode_savefh_maxsz + \ 3702cebf828STrond Myklebust decode_open_maxsz + \ 3712cebf828STrond Myklebust decode_getfh_maxsz + \ 3721da177e4SLinus Torvalds decode_getattr_maxsz + \ 3732cebf828STrond Myklebust decode_restorefh_maxsz + \ 3742cebf828STrond Myklebust decode_getattr_maxsz) 3751da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 3761da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3771da177e4SLinus Torvalds encode_putfh_maxsz + \ 3789104a55dSTrond Myklebust encode_open_confirm_maxsz) 3799104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 3809104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 3811da177e4SLinus Torvalds decode_putfh_maxsz + \ 3829104a55dSTrond Myklebust decode_open_confirm_maxsz) 3831da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 3849b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3851da177e4SLinus Torvalds encode_putfh_maxsz + \ 3862cebf828STrond Myklebust encode_open_maxsz + \ 3872cebf828STrond Myklebust encode_getattr_maxsz) 3881da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 3899b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3901da177e4SLinus Torvalds decode_putfh_maxsz + \ 3912cebf828STrond Myklebust decode_open_maxsz + \ 3922cebf828STrond Myklebust decode_getattr_maxsz) 3931da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 3941da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 3959b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3961da177e4SLinus Torvalds encode_putfh_maxsz + \ 3979104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 398516a6af6STrond Myklebust encode_getattr_maxsz) 3991da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4001da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4019b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4021da177e4SLinus Torvalds decode_putfh_maxsz + \ 4039104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 404516a6af6STrond Myklebust decode_getattr_maxsz) 4051da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4069b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4071da177e4SLinus Torvalds encode_putfh_maxsz + \ 4089104a55dSTrond Myklebust encode_close_maxsz + \ 409516a6af6STrond Myklebust encode_getattr_maxsz) 4101da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4119b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4121da177e4SLinus Torvalds decode_putfh_maxsz + \ 4139104a55dSTrond Myklebust decode_close_maxsz + \ 414516a6af6STrond Myklebust decode_getattr_maxsz) 4151da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4171da177e4SLinus Torvalds encode_putfh_maxsz + \ 4189104a55dSTrond Myklebust encode_setattr_maxsz + \ 4191da177e4SLinus Torvalds encode_getattr_maxsz) 4201da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4219b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4221da177e4SLinus Torvalds decode_putfh_maxsz + \ 4239104a55dSTrond Myklebust decode_setattr_maxsz + \ 4249104a55dSTrond Myklebust decode_getattr_maxsz) 4251da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4269b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4271da177e4SLinus Torvalds encode_putfh_maxsz + \ 4281da177e4SLinus Torvalds encode_fsinfo_maxsz) 4291da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4309b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4311da177e4SLinus Torvalds decode_putfh_maxsz + \ 4321da177e4SLinus Torvalds decode_fsinfo_maxsz) 4331da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4341da177e4SLinus Torvalds encode_renew_maxsz) 4351da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4361da177e4SLinus Torvalds decode_renew_maxsz) 4371da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4381da177e4SLinus Torvalds encode_setclientid_maxsz) 4391da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4401da177e4SLinus Torvalds decode_setclientid_maxsz) 4411da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4421da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4431da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4441da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4451da177e4SLinus Torvalds encode_fsinfo_maxsz) 4461da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4471da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4481da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4491da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4501da177e4SLinus Torvalds decode_fsinfo_maxsz) 4511da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4529b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4531da177e4SLinus Torvalds encode_putfh_maxsz + \ 4549104a55dSTrond Myklebust encode_lock_maxsz) 4551da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4569b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4571da177e4SLinus Torvalds decode_putfh_maxsz + \ 4589104a55dSTrond Myklebust decode_lock_maxsz) 4591da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4609b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4611da177e4SLinus Torvalds encode_putfh_maxsz + \ 4629104a55dSTrond Myklebust encode_lockt_maxsz) 4639104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 4649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4659104a55dSTrond Myklebust decode_putfh_maxsz + \ 4669104a55dSTrond Myklebust decode_lockt_maxsz) 4671da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 4689b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4691da177e4SLinus Torvalds encode_putfh_maxsz + \ 4709104a55dSTrond Myklebust encode_locku_maxsz) 4711da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 4729b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4731da177e4SLinus Torvalds decode_putfh_maxsz + \ 4749104a55dSTrond Myklebust decode_locku_maxsz) 4751da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 4769b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4771da177e4SLinus Torvalds encode_putfh_maxsz + \ 47876b32999STrond Myklebust encode_access_maxsz + \ 47976b32999STrond Myklebust encode_getattr_maxsz) 4801da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 4819b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4821da177e4SLinus Torvalds decode_putfh_maxsz + \ 48376b32999STrond Myklebust decode_access_maxsz + \ 48476b32999STrond Myklebust decode_getattr_maxsz) 4851da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 4869b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4871da177e4SLinus Torvalds encode_putfh_maxsz + \ 4881da177e4SLinus Torvalds encode_getattr_maxsz) 4891da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 4909b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4911da177e4SLinus Torvalds decode_putfh_maxsz + \ 4921da177e4SLinus Torvalds decode_getattr_maxsz) 4931da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 4949b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4951da177e4SLinus Torvalds encode_putfh_maxsz + \ 4961da177e4SLinus Torvalds encode_lookup_maxsz + \ 4971da177e4SLinus Torvalds encode_getattr_maxsz + \ 4981da177e4SLinus Torvalds encode_getfh_maxsz) 4991da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5009b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5011da177e4SLinus Torvalds decode_putfh_maxsz + \ 502e6889620STrond Myklebust decode_lookup_maxsz + \ 5031da177e4SLinus Torvalds decode_getattr_maxsz + \ 5041da177e4SLinus Torvalds decode_getfh_maxsz) 5051da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5069b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5071da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5081da177e4SLinus Torvalds encode_getattr_maxsz + \ 5091da177e4SLinus Torvalds encode_getfh_maxsz) 5101da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5119b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5121da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5131da177e4SLinus Torvalds decode_getattr_maxsz + \ 5141da177e4SLinus Torvalds decode_getfh_maxsz) 5151da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5171da177e4SLinus Torvalds encode_putfh_maxsz + \ 51816e42959STrond Myklebust encode_remove_maxsz + \ 51916e42959STrond Myklebust encode_getattr_maxsz) 5201da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5219b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5221da177e4SLinus Torvalds decode_putfh_maxsz + \ 5236ce18391SBenny Halevy decode_remove_maxsz + \ 52416e42959STrond Myklebust decode_getattr_maxsz) 5251da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5269b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5271da177e4SLinus Torvalds encode_putfh_maxsz + \ 5281da177e4SLinus Torvalds encode_savefh_maxsz + \ 5291da177e4SLinus Torvalds encode_putfh_maxsz + \ 5306caf2c82STrond Myklebust encode_rename_maxsz + \ 5316caf2c82STrond Myklebust encode_getattr_maxsz + \ 5326caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5336caf2c82STrond Myklebust encode_getattr_maxsz) 5341da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5359b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5361da177e4SLinus Torvalds decode_putfh_maxsz + \ 5371da177e4SLinus Torvalds decode_savefh_maxsz + \ 5381da177e4SLinus Torvalds decode_putfh_maxsz + \ 5396caf2c82STrond Myklebust decode_rename_maxsz + \ 5406caf2c82STrond Myklebust decode_getattr_maxsz + \ 5416caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5426caf2c82STrond Myklebust decode_getattr_maxsz) 5431da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5449b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5451da177e4SLinus Torvalds encode_putfh_maxsz + \ 5461da177e4SLinus Torvalds encode_savefh_maxsz + \ 5471da177e4SLinus Torvalds encode_putfh_maxsz + \ 54891ba2eeeSTrond Myklebust encode_link_maxsz + \ 54991ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 55091ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 55191ba2eeeSTrond Myklebust decode_getattr_maxsz) 5521da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5541da177e4SLinus Torvalds decode_putfh_maxsz + \ 5551da177e4SLinus Torvalds decode_savefh_maxsz + \ 5561da177e4SLinus Torvalds decode_putfh_maxsz + \ 55791ba2eeeSTrond Myklebust decode_link_maxsz + \ 55891ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 55991ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 56091ba2eeeSTrond Myklebust decode_getattr_maxsz) 5611da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 5629b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5631da177e4SLinus Torvalds encode_putfh_maxsz + \ 5641da177e4SLinus Torvalds encode_symlink_maxsz + \ 5651da177e4SLinus Torvalds encode_getattr_maxsz + \ 5661da177e4SLinus Torvalds encode_getfh_maxsz) 5671da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 5689b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5691da177e4SLinus Torvalds decode_putfh_maxsz + \ 5701da177e4SLinus Torvalds decode_symlink_maxsz + \ 5711da177e4SLinus Torvalds decode_getattr_maxsz + \ 5721da177e4SLinus Torvalds decode_getfh_maxsz) 5731da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 5749b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5751da177e4SLinus Torvalds encode_putfh_maxsz + \ 57656ae19f3STrond Myklebust encode_savefh_maxsz + \ 5771da177e4SLinus Torvalds encode_create_maxsz + \ 57856ae19f3STrond Myklebust encode_getfh_maxsz + \ 5791da177e4SLinus Torvalds encode_getattr_maxsz + \ 58056ae19f3STrond Myklebust encode_restorefh_maxsz + \ 58156ae19f3STrond Myklebust encode_getattr_maxsz) 5821da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 5839b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5841da177e4SLinus Torvalds decode_putfh_maxsz + \ 58556ae19f3STrond Myklebust decode_savefh_maxsz + \ 5861da177e4SLinus Torvalds decode_create_maxsz + \ 58756ae19f3STrond Myklebust decode_getfh_maxsz + \ 5881da177e4SLinus Torvalds decode_getattr_maxsz + \ 58956ae19f3STrond Myklebust decode_restorefh_maxsz + \ 59056ae19f3STrond Myklebust decode_getattr_maxsz) 5911da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 5929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5931da177e4SLinus Torvalds encode_putfh_maxsz + \ 5941da177e4SLinus Torvalds encode_getattr_maxsz) 5951da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 5969b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5971da177e4SLinus Torvalds decode_putfh_maxsz + \ 5981da177e4SLinus Torvalds decode_getattr_maxsz) 5991da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6009b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6011da177e4SLinus Torvalds encode_putfh_maxsz + \ 6029104a55dSTrond Myklebust encode_statfs_maxsz) 6031da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6049b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6051da177e4SLinus Torvalds decode_putfh_maxsz + \ 6069104a55dSTrond Myklebust decode_statfs_maxsz) 6071da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6089b7b9fccSAndy Adamson encode_sequence_maxsz + \ 609ab91f264STrond Myklebust encode_putfh_maxsz + \ 6101da177e4SLinus Torvalds encode_getattr_maxsz) 6111da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6129b7b9fccSAndy Adamson decode_sequence_maxsz + \ 613ab91f264STrond Myklebust decode_putfh_maxsz + \ 6141da177e4SLinus Torvalds decode_getattr_maxsz) 6151da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6171da177e4SLinus Torvalds encode_putfh_maxsz + \ 618fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 619fa178f29STrond Myklebust encode_getattr_maxsz) 6201da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6219b7b9fccSAndy Adamson decode_sequence_maxsz + \ 622fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 623fa178f29STrond Myklebust decode_getattr_maxsz) 624029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6259b7b9fccSAndy Adamson encode_sequence_maxsz + \ 626029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6279104a55dSTrond Myklebust encode_getacl_maxsz) 628029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6299b7b9fccSAndy Adamson decode_sequence_maxsz + \ 630029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6319104a55dSTrond Myklebust decode_getacl_maxsz) 63223ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6339b7b9fccSAndy Adamson encode_sequence_maxsz + \ 63423ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6359104a55dSTrond Myklebust encode_setacl_maxsz) 63623ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 63823ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6399104a55dSTrond Myklebust decode_setacl_maxsz) 640683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 641683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6429b7b9fccSAndy Adamson encode_sequence_maxsz + \ 643683b57b4STrond Myklebust encode_putfh_maxsz + \ 644e6889620STrond Myklebust encode_lookup_maxsz + \ 645e6889620STrond Myklebust encode_fs_locations_maxsz) 646683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 647683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6489b7b9fccSAndy Adamson decode_sequence_maxsz + \ 649683b57b4STrond Myklebust decode_putfh_maxsz + \ 650e6889620STrond Myklebust decode_lookup_maxsz + \ 651e6889620STrond Myklebust decode_fs_locations_maxsz) 65299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 65399fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 65499fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 65599fe60d0SBenny Halevy encode_exchange_id_maxsz) 65699fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 65799fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 65899fe60d0SBenny Halevy decode_exchange_id_maxsz) 659fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 660fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 661fc931582SAndy Adamson encode_create_session_maxsz) 662fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 663fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 664fc931582SAndy Adamson decode_create_session_maxsz) 6650f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 6660f3e66c6SAndy Adamson encode_destroy_session_maxsz) 6670f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 6680f3e66c6SAndy Adamson decode_destroy_session_maxsz) 669fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 670fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 671fc01cea9SAndy Adamson encode_sequence_maxsz) 672fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 673fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 674fc01cea9SAndy Adamson decode_sequence_maxsz) 6752050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 6762050f0ccSAndy Adamson encode_sequence_maxsz + \ 6772050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 6782050f0ccSAndy Adamson encode_fsinfo_maxsz) 6792050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 6802050f0ccSAndy Adamson decode_sequence_maxsz + \ 6812050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 6822050f0ccSAndy Adamson decode_fsinfo_maxsz) 68318019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 68418019753SRicardo Labiaga encode_sequence_maxsz + \ 68518019753SRicardo Labiaga encode_reclaim_complete_maxsz) 68618019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 68718019753SRicardo Labiaga decode_sequence_maxsz + \ 68818019753SRicardo Labiaga decode_reclaim_complete_maxsz) 6892449ea2eSAlexandros Batsakis 6902449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 6912449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 6922449ea2eSAlexandros Batsakis encode_sequence_maxsz + 6932449ea2eSAlexandros Batsakis encode_putfh_maxsz + 6942449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 6952449ea2eSAlexandros Batsakis XDR_UNIT); 6962449ea2eSAlexandros Batsakis 6972449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 6982449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 6992449ea2eSAlexandros Batsakis decode_sequence_maxsz + 7002449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 7012449ea2eSAlexandros Batsakis XDR_UNIT); 70299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 7031da177e4SLinus Torvalds 704bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 705bca79478STrond Myklebust [NF4BAD] = 0, 706bca79478STrond Myklebust [NF4REG] = S_IFREG, 707bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 708bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 709bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 710bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 711bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 712bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 713bca79478STrond Myklebust [NF4ATTRDIR] = 0, 714bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 7151da177e4SLinus Torvalds }; 7161da177e4SLinus Torvalds 7171da177e4SLinus Torvalds struct compound_hdr { 7181da177e4SLinus Torvalds int32_t status; 7191da177e4SLinus Torvalds uint32_t nops; 720d017931cSAndy Adamson __be32 * nops_p; 7211da177e4SLinus Torvalds uint32_t taglen; 7221da177e4SLinus Torvalds char * tag; 7230c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 72466cc0429SBenny Halevy u32 minorversion; 7251da177e4SLinus Torvalds }; 7261da177e4SLinus Torvalds 72713c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 72813c65ce9SBenny Halevy { 72913c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 73013c65ce9SBenny Halevy BUG_ON(!p); 73113c65ce9SBenny Halevy return p; 73213c65ce9SBenny Halevy } 7331da177e4SLinus Torvalds 7341da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 7351da177e4SLinus Torvalds { 7368687b63aSAl Viro __be32 *p; 7371da177e4SLinus Torvalds 7381da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 7391da177e4SLinus Torvalds BUG_ON(p == NULL); 7401da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 7411da177e4SLinus Torvalds } 7421da177e4SLinus Torvalds 7430c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 7440c4e8c18SBenny Halevy struct rpc_rqst *req, 7450c4e8c18SBenny Halevy struct compound_hdr *hdr) 7461da177e4SLinus Torvalds { 7478687b63aSAl Viro __be32 *p; 7480c4e8c18SBenny Halevy struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth; 7490c4e8c18SBenny Halevy 7500c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 7510c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 7520c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 7530c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 7541da177e4SLinus Torvalds 7551da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 7561da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 757811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 758811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 759e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 760d017931cSAndy Adamson hdr->nops_p = p; 76134558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 762d017931cSAndy Adamson } 763d017931cSAndy Adamson 764d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 765d017931cSAndy Adamson { 766fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 767d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 7681da177e4SLinus Torvalds } 7691da177e4SLinus Torvalds 7701da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 7711da177e4SLinus Torvalds { 7728687b63aSAl Viro __be32 *p; 7731da177e4SLinus Torvalds 7741da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 7751da177e4SLinus Torvalds BUG_ON(p == NULL); 7761da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 7771da177e4SLinus Torvalds } 7781da177e4SLinus Torvalds 779cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 7801da177e4SLinus Torvalds { 7811da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 7821da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 7831da177e4SLinus Torvalds int owner_namelen = 0; 7841da177e4SLinus Torvalds int owner_grouplen = 0; 7858687b63aSAl Viro __be32 *p; 7868687b63aSAl Viro __be32 *q; 7871da177e4SLinus Torvalds int len; 7881da177e4SLinus Torvalds uint32_t bmval0 = 0; 7891da177e4SLinus Torvalds uint32_t bmval1 = 0; 7901da177e4SLinus Torvalds 7911da177e4SLinus Torvalds /* 7921da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 7931da177e4SLinus Torvalds * In the worst-case, this would be 7941da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 7951da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 79623ec6965SJ. Bruce Fields * such as owner/group. 7971da177e4SLinus Torvalds */ 7981da177e4SLinus Torvalds len = 16; 7991da177e4SLinus Torvalds 8001da177e4SLinus Torvalds /* Sigh */ 8011da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 8021da177e4SLinus Torvalds len += 8; 8031da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 8041da177e4SLinus Torvalds len += 4; 8051da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8067539bbabSDavid Howells owner_namelen = nfs_map_uid_to_name(server->nfs_client, iap->ia_uid, owner_name); 8071da177e4SLinus Torvalds if (owner_namelen < 0) { 808fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 8091da177e4SLinus Torvalds iap->ia_uid); 8101da177e4SLinus Torvalds /* XXX */ 8111da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 8121da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8131da177e4SLinus Torvalds /* goto out; */ 8141da177e4SLinus Torvalds } 8151da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8161da177e4SLinus Torvalds } 8171da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8187539bbabSDavid Howells owner_grouplen = nfs_map_gid_to_group(server->nfs_client, iap->ia_gid, owner_group); 8191da177e4SLinus Torvalds if (owner_grouplen < 0) { 820fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8211da177e4SLinus Torvalds iap->ia_gid); 8221da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8231da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8241da177e4SLinus Torvalds /* goto out; */ 8251da177e4SLinus Torvalds } 8261da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 8271da177e4SLinus Torvalds } 8281da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 8291da177e4SLinus Torvalds len += 16; 8301da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 8311da177e4SLinus Torvalds len += 4; 8321da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 8331da177e4SLinus Torvalds len += 16; 8341da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 8351da177e4SLinus Torvalds len += 4; 83613c65ce9SBenny Halevy p = reserve_space(xdr, len); 8371da177e4SLinus Torvalds 8381da177e4SLinus Torvalds /* 8391da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 8401da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 8411da177e4SLinus Torvalds */ 842e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 8431da177e4SLinus Torvalds q = p; 8441da177e4SLinus Torvalds p += 3; 8451da177e4SLinus Torvalds 8461da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 8471da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 848b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 8491da177e4SLinus Torvalds } 8501da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 8511da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 852e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 8531da177e4SLinus Torvalds } 8541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 8551da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 856811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 8571da177e4SLinus Torvalds } 8581da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 8591da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 860811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 8611da177e4SLinus Torvalds } 8621da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 8631da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 864e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 866e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 867e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8681da177e4SLinus Torvalds } 8691da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 8701da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 871e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8721da177e4SLinus Torvalds } 8731da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 8741da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 875e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 876e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 877e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 878e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 8791da177e4SLinus Torvalds } 8801da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 8811da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 882e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 8831da177e4SLinus Torvalds } 8841da177e4SLinus Torvalds 8851da177e4SLinus Torvalds /* 8861da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 8871da177e4SLinus Torvalds */ 8881da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 889fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 8901da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 8911da177e4SLinus Torvalds BUG(); 8921da177e4SLinus Torvalds } 8931da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 8941da177e4SLinus Torvalds *q++ = htonl(bmval0); 8951da177e4SLinus Torvalds *q++ = htonl(bmval1); 89634558513SBenny Halevy *q = htonl(len); 8971da177e4SLinus Torvalds 8981da177e4SLinus Torvalds /* out: */ 8991da177e4SLinus Torvalds } 9001da177e4SLinus Torvalds 901cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 9021da177e4SLinus Torvalds { 9038687b63aSAl Viro __be32 *p; 9041da177e4SLinus Torvalds 90513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 906e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 90734558513SBenny Halevy *p = cpu_to_be32(access); 908d017931cSAndy Adamson hdr->nops++; 909dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 9101da177e4SLinus Torvalds } 9111da177e4SLinus Torvalds 912cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9131da177e4SLinus Torvalds { 9148687b63aSAl Viro __be32 *p; 9151da177e4SLinus Torvalds 91613c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 917e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 918e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 91934558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 920d017931cSAndy Adamson hdr->nops++; 921dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9221da177e4SLinus Torvalds } 9231da177e4SLinus Torvalds 924cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 9251da177e4SLinus Torvalds { 9268687b63aSAl Viro __be32 *p; 9271da177e4SLinus Torvalds 92813c65ce9SBenny Halevy p = reserve_space(xdr, 16); 929e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 930b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 93134558513SBenny Halevy *p = cpu_to_be32(args->count); 932d017931cSAndy Adamson hdr->nops++; 933dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 9341da177e4SLinus Torvalds } 9351da177e4SLinus Torvalds 936cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 9371da177e4SLinus Torvalds { 9388687b63aSAl Viro __be32 *p; 9391da177e4SLinus Torvalds 94013c65ce9SBenny Halevy p = reserve_space(xdr, 8); 941e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 94234558513SBenny Halevy *p = cpu_to_be32(create->ftype); 9431da177e4SLinus Torvalds 9441da177e4SLinus Torvalds switch (create->ftype) { 9451da177e4SLinus Torvalds case NF4LNK: 94613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 94734558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 94894a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 9491da177e4SLinus Torvalds break; 9501da177e4SLinus Torvalds 9511da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 95213c65ce9SBenny Halevy p = reserve_space(xdr, 8); 953e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 95434558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 9551da177e4SLinus Torvalds break; 9561da177e4SLinus Torvalds 9571da177e4SLinus Torvalds default: 9581da177e4SLinus Torvalds break; 9591da177e4SLinus Torvalds } 9601da177e4SLinus Torvalds 961811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 962d017931cSAndy Adamson hdr->nops++; 963dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 9641da177e4SLinus Torvalds 965cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 9661da177e4SLinus Torvalds } 9671da177e4SLinus Torvalds 968cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 9691da177e4SLinus Torvalds { 9708687b63aSAl Viro __be32 *p; 9711da177e4SLinus Torvalds 97213c65ce9SBenny Halevy p = reserve_space(xdr, 12); 973e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 974e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 97534558513SBenny Halevy *p = cpu_to_be32(bitmap); 976d017931cSAndy Adamson hdr->nops++; 977dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9781da177e4SLinus Torvalds } 9791da177e4SLinus Torvalds 980cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 9811da177e4SLinus Torvalds { 9828687b63aSAl Viro __be32 *p; 9831da177e4SLinus Torvalds 98413c65ce9SBenny Halevy p = reserve_space(xdr, 16); 985e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 986e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 987e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 98834558513SBenny Halevy *p = cpu_to_be32(bm1); 989d017931cSAndy Adamson hdr->nops++; 990dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 9911da177e4SLinus Torvalds } 9921da177e4SLinus Torvalds 993cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 9941da177e4SLinus Torvalds { 995cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 996d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 9971da177e4SLinus Torvalds } 9981da177e4SLinus Torvalds 999cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10001da177e4SLinus Torvalds { 1001cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 1002d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 10031da177e4SLinus Torvalds } 10041da177e4SLinus Torvalds 1005cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1006830b8e33SManoj Naik { 1007cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1008cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1009830b8e33SManoj Naik } 1010830b8e33SManoj Naik 1011cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10121da177e4SLinus Torvalds { 10138687b63aSAl Viro __be32 *p; 10141da177e4SLinus Torvalds 101513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 101634558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1017d017931cSAndy Adamson hdr->nops++; 1018dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10191da177e4SLinus Torvalds } 10201da177e4SLinus Torvalds 1021cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10221da177e4SLinus Torvalds { 10238687b63aSAl Viro __be32 *p; 10241da177e4SLinus Torvalds 102513c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1026e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1027811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1028d017931cSAndy Adamson hdr->nops++; 1029dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 10301da177e4SLinus Torvalds } 10311da177e4SLinus Torvalds 1032911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1033911d1aafSTrond Myklebust { 1034911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1035911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1036911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1037911d1aafSTrond Myklebust } 1038911d1aafSTrond Myklebust 1039911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1040911d1aafSTrond Myklebust { 1041911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1042911d1aafSTrond Myklebust return ~(uint64_t)0; 1043911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1044911d1aafSTrond Myklebust } 1045911d1aafSTrond Myklebust 10461da177e4SLinus Torvalds /* 10471da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 10481da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 10491da177e4SLinus Torvalds */ 1050cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 10511da177e4SLinus Torvalds { 10528687b63aSAl Viro __be32 *p; 10531da177e4SLinus Torvalds 105413c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1055e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1056e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1057e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1058b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1059b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 106034558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1061911d1aafSTrond Myklebust if (args->new_lock_owner){ 106213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32); 1063e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 106493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1065e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1066b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1067e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 106893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "lock id:", 8); 106934558513SBenny Halevy xdr_encode_hyper(p, args->lock_owner.id); 10701da177e4SLinus Torvalds } 10711da177e4SLinus Torvalds else { 107213c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 107393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 107434558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 10751da177e4SLinus Torvalds } 1076d017931cSAndy Adamson hdr->nops++; 1077dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 10781da177e4SLinus Torvalds } 10791da177e4SLinus Torvalds 1080cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 10811da177e4SLinus Torvalds { 10828687b63aSAl Viro __be32 *p; 10831da177e4SLinus Torvalds 108413c65ce9SBenny Halevy p = reserve_space(xdr, 52); 1085e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1086e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1087b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1088b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1089b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->lock_owner.clientid); 1090e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 109193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "lock id:", 8); 109234558513SBenny Halevy xdr_encode_hyper(p, args->lock_owner.id); 1093d017931cSAndy Adamson hdr->nops++; 1094dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 10951da177e4SLinus Torvalds } 10961da177e4SLinus Torvalds 1097cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 10981da177e4SLinus Torvalds { 10998687b63aSAl Viro __be32 *p; 11001da177e4SLinus Torvalds 110113c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1102e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1103e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1104e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 110593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1106b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 110734558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1108d017931cSAndy Adamson hdr->nops++; 1109dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11101da177e4SLinus Torvalds } 11111da177e4SLinus Torvalds 1112cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11131da177e4SLinus Torvalds { 11141da177e4SLinus Torvalds int len = name->len; 11158687b63aSAl Viro __be32 *p; 11161da177e4SLinus Torvalds 111713c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1118e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1119811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1120d017931cSAndy Adamson hdr->nops++; 1121dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 11221da177e4SLinus Torvalds } 11231da177e4SLinus Torvalds 1124dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 11251da177e4SLinus Torvalds { 11268687b63aSAl Viro __be32 *p; 11271da177e4SLinus Torvalds 112813c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1129dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 11301da177e4SLinus Torvalds case FMODE_READ: 1131e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 11321da177e4SLinus Torvalds break; 11331da177e4SLinus Torvalds case FMODE_WRITE: 1134e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 11351da177e4SLinus Torvalds break; 11361da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1137e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 11381da177e4SLinus Torvalds break; 11391da177e4SLinus Torvalds default: 1140e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 11411da177e4SLinus Torvalds } 114234558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 11431da177e4SLinus Torvalds } 11441da177e4SLinus Torvalds 11451da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11461da177e4SLinus Torvalds { 11478687b63aSAl Viro __be32 *p; 11481da177e4SLinus Torvalds /* 11491da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 11501da177e4SLinus Torvalds * owner 4 = 32 11511da177e4SLinus Torvalds */ 115213c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1153e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 115434558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1155dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 115613c65ce9SBenny Halevy p = reserve_space(xdr, 28); 1157b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1158e75bc1c8SBenny Halevy *p++ = cpu_to_be32(16); 115993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 116034558513SBenny Halevy xdr_encode_hyper(p, arg->id); 11611da177e4SLinus Torvalds } 11621da177e4SLinus Torvalds 11631da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11641da177e4SLinus Torvalds { 11658687b63aSAl Viro __be32 *p; 11664882ef72SAlexandros Batsakis struct nfs_client *clp; 11671da177e4SLinus Torvalds 116813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 11691da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 11701da177e4SLinus Torvalds case 0: 117134558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 11721da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 11731da177e4SLinus Torvalds break; 11741da177e4SLinus Torvalds default: 11754882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 11764882ef72SAlexandros Batsakis if (clp->cl_minorversion > 0) { 11774882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 11784882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 11794882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 11804882ef72SAlexandros Batsakis } else { 11814882ef72SAlexandros Batsakis struct iattr dummy; 11824882ef72SAlexandros Batsakis 11834882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 11844882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 11854882ef72SAlexandros Batsakis dummy.ia_valid = 0; 11864882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 11874882ef72SAlexandros Batsakis } 11884882ef72SAlexandros Batsakis } else { 118934558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 11901da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 11911da177e4SLinus Torvalds } 11921da177e4SLinus Torvalds } 11934882ef72SAlexandros Batsakis } 11941da177e4SLinus Torvalds 11951da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 11961da177e4SLinus Torvalds { 11978687b63aSAl Viro __be32 *p; 11981da177e4SLinus Torvalds 119913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12001da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 12011da177e4SLinus Torvalds case 0: 120234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 12031da177e4SLinus Torvalds break; 12041da177e4SLinus Torvalds default: 12051da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 120634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 12071da177e4SLinus Torvalds encode_createmode(xdr, arg); 12081da177e4SLinus Torvalds } 12091da177e4SLinus Torvalds } 12101da177e4SLinus Torvalds 1211bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 12121da177e4SLinus Torvalds { 12138687b63aSAl Viro __be32 *p; 12141da177e4SLinus Torvalds 121513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12161da177e4SLinus Torvalds switch (delegation_type) { 12171da177e4SLinus Torvalds case 0: 121834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 12191da177e4SLinus Torvalds break; 12201da177e4SLinus Torvalds case FMODE_READ: 122134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 12221da177e4SLinus Torvalds break; 12231da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 122434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 12251da177e4SLinus Torvalds break; 12261da177e4SLinus Torvalds default: 12271da177e4SLinus Torvalds BUG(); 12281da177e4SLinus Torvalds } 12291da177e4SLinus Torvalds } 12301da177e4SLinus Torvalds 12311da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 12321da177e4SLinus Torvalds { 12338687b63aSAl Viro __be32 *p; 12341da177e4SLinus Torvalds 123513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 123634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 12371da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12381da177e4SLinus Torvalds } 12391da177e4SLinus Torvalds 1240bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 12411da177e4SLinus Torvalds { 12428687b63aSAl Viro __be32 *p; 12431da177e4SLinus Torvalds 124413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 124534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 12461da177e4SLinus Torvalds encode_delegation_type(xdr, type); 12471da177e4SLinus Torvalds } 12481da177e4SLinus Torvalds 12491da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 12501da177e4SLinus Torvalds { 12518687b63aSAl Viro __be32 *p; 12521da177e4SLinus Torvalds 125313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1254e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 125534558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 12561da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 12571da177e4SLinus Torvalds } 12581da177e4SLinus Torvalds 1259cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 12601da177e4SLinus Torvalds { 12611da177e4SLinus Torvalds encode_openhdr(xdr, arg); 12621da177e4SLinus Torvalds encode_opentype(xdr, arg); 12631da177e4SLinus Torvalds switch (arg->claim) { 12641da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 12651da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 12661da177e4SLinus Torvalds break; 12671da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 12681da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 12691da177e4SLinus Torvalds break; 12701da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 12711da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 12721da177e4SLinus Torvalds break; 12731da177e4SLinus Torvalds default: 12741da177e4SLinus Torvalds BUG(); 12751da177e4SLinus Torvalds } 1276d017931cSAndy Adamson hdr->nops++; 1277dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 12781da177e4SLinus Torvalds } 12791da177e4SLinus Torvalds 1280cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 12811da177e4SLinus Torvalds { 12828687b63aSAl Viro __be32 *p; 12831da177e4SLinus Torvalds 128413c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1285e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 128693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 128734558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1288d017931cSAndy Adamson hdr->nops++; 1289dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 12901da177e4SLinus Torvalds } 12911da177e4SLinus Torvalds 1292cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 12931da177e4SLinus Torvalds { 12948687b63aSAl Viro __be32 *p; 12951da177e4SLinus Torvalds 129613c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1297e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 129893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 129934558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1300dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1301d017931cSAndy Adamson hdr->nops++; 1302dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 13031da177e4SLinus Torvalds } 13041da177e4SLinus Torvalds 1305cf8cdbe5SAndy Adamson static void 1306d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 13071da177e4SLinus Torvalds { 13081da177e4SLinus Torvalds int len = fh->size; 13098687b63aSAl Viro __be32 *p; 13101da177e4SLinus Torvalds 131113c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1312e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1313811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1314d017931cSAndy Adamson hdr->nops++; 1315dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 13161da177e4SLinus Torvalds } 13171da177e4SLinus Torvalds 1318cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 13191da177e4SLinus Torvalds { 13208687b63aSAl Viro __be32 *p; 13211da177e4SLinus Torvalds 132213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 132334558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1324d017931cSAndy Adamson hdr->nops++; 1325dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 13261da177e4SLinus Torvalds } 13271da177e4SLinus Torvalds 13281da177e4SLinus Torvalds static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx) 13291da177e4SLinus Torvalds { 13301da177e4SLinus Torvalds nfs4_stateid stateid; 13318687b63aSAl Viro __be32 *p; 13321da177e4SLinus Torvalds 133313c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 13341da177e4SLinus Torvalds if (ctx->state != NULL) { 13351da177e4SLinus Torvalds nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner); 133634558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 13371da177e4SLinus Torvalds } else 133834558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 13391da177e4SLinus Torvalds } 13401da177e4SLinus Torvalds 1341cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 13421da177e4SLinus Torvalds { 13438687b63aSAl Viro __be32 *p; 13441da177e4SLinus Torvalds 134513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 134634558513SBenny Halevy *p = cpu_to_be32(OP_READ); 13471da177e4SLinus Torvalds 13481da177e4SLinus Torvalds encode_stateid(xdr, args->context); 13491da177e4SLinus Torvalds 135013c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1351b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 135234558513SBenny Halevy *p = cpu_to_be32(args->count); 1353d017931cSAndy Adamson hdr->nops++; 1354dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 13551da177e4SLinus Torvalds } 13561da177e4SLinus Torvalds 1357cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 13581da177e4SLinus Torvalds { 135997d312d0SManoj Naik uint32_t attrs[2] = { 136097d312d0SManoj Naik FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID, 136197d312d0SManoj Naik FATTR4_WORD1_MOUNTED_ON_FILEID, 136297d312d0SManoj Naik }; 13638687b63aSAl Viro __be32 *p; 13641da177e4SLinus Torvalds 136513c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 1366e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_READDIR); 1367b95be5a9SBenny Halevy p = xdr_encode_hyper(p, readdir->cookie); 136893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 1369e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count >> 1); /* We're not doing readdirplus */ 1370e75bc1c8SBenny Halevy *p++ = cpu_to_be32(readdir->count); 1371e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 137297d312d0SManoj Naik /* Switch to mounted_on_fileid if the server supports it */ 137397d312d0SManoj Naik if (readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID) 137497d312d0SManoj Naik attrs[0] &= ~FATTR4_WORD0_FILEID; 137597d312d0SManoj Naik else 137697d312d0SManoj Naik attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 1377e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 137834558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1379d017931cSAndy Adamson hdr->nops++; 1380dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 138144109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 138244109241SFred Isaman __func__, 1383eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1384eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1385eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1386eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1387eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 13881da177e4SLinus Torvalds } 13891da177e4SLinus Torvalds 1390cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 13911da177e4SLinus Torvalds { 13928687b63aSAl Viro __be32 *p; 13931da177e4SLinus Torvalds 139413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 139534558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1396d017931cSAndy Adamson hdr->nops++; 1397dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 13981da177e4SLinus Torvalds } 13991da177e4SLinus Torvalds 1400cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 14011da177e4SLinus Torvalds { 14028687b63aSAl Viro __be32 *p; 14031da177e4SLinus Torvalds 140413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1405e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1406811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1407d017931cSAndy Adamson hdr->nops++; 1408dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 14091da177e4SLinus Torvalds } 14101da177e4SLinus Torvalds 1411cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 14121da177e4SLinus Torvalds { 14138687b63aSAl Viro __be32 *p; 14141da177e4SLinus Torvalds 1415811652bdSBenny Halevy p = reserve_space(xdr, 4); 1416811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1417811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1418811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1419d017931cSAndy Adamson hdr->nops++; 1420dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 14211da177e4SLinus Torvalds } 14221da177e4SLinus Torvalds 1423cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 14241da177e4SLinus Torvalds { 14258687b63aSAl Viro __be32 *p; 14261da177e4SLinus Torvalds 142713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1428e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 142934558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1430d017931cSAndy Adamson hdr->nops++; 1431dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 14321da177e4SLinus Torvalds } 14331da177e4SLinus Torvalds 1434cf8cdbe5SAndy Adamson static void 1435d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 143656ae19f3STrond Myklebust { 14378687b63aSAl Viro __be32 *p; 143856ae19f3STrond Myklebust 143913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144034558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1441d017931cSAndy Adamson hdr->nops++; 1442dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 144356ae19f3STrond Myklebust } 144456ae19f3STrond Myklebust 144556ae19f3STrond Myklebust static int 1446d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 144723ec6965SJ. Bruce Fields { 14488687b63aSAl Viro __be32 *p; 144923ec6965SJ. Bruce Fields 145013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1451e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 145234558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 145313c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1454e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 145534558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 145623ec6965SJ. Bruce Fields if (arg->acl_len % 4) 145723ec6965SJ. Bruce Fields return -EINVAL; 145813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 145934558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 146023ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1461d017931cSAndy Adamson hdr->nops++; 1462dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 146323ec6965SJ. Bruce Fields return 0; 146423ec6965SJ. Bruce Fields } 146523ec6965SJ. Bruce Fields 1466cf8cdbe5SAndy Adamson static void 1467d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14681da177e4SLinus Torvalds { 14698687b63aSAl Viro __be32 *p; 14701da177e4SLinus Torvalds 147113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 147234558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1473d017931cSAndy Adamson hdr->nops++; 1474dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 14751da177e4SLinus Torvalds } 14761da177e4SLinus Torvalds 1477cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 14781da177e4SLinus Torvalds { 14798687b63aSAl Viro __be32 *p; 14801da177e4SLinus Torvalds 148113c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1482e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 148334558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1484d017931cSAndy Adamson hdr->nops++; 1485dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1486cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 14871da177e4SLinus Torvalds } 14881da177e4SLinus Torvalds 1489cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 14901da177e4SLinus Torvalds { 14918687b63aSAl Viro __be32 *p; 14921da177e4SLinus Torvalds 149313c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1494e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 149534558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 14961da177e4SLinus Torvalds 14971da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 149813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 149934558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 15001da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 15011da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 150213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 150334558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1504d017931cSAndy Adamson hdr->nops++; 1505dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 15061da177e4SLinus Torvalds } 15071da177e4SLinus Torvalds 1508cf8cdbe5SAndy Adamson static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr) 15091da177e4SLinus Torvalds { 15108687b63aSAl Viro __be32 *p; 15111da177e4SLinus Torvalds 151213c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1513e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1514b95be5a9SBenny Halevy p = xdr_encode_hyper(p, client_state->cl_clientid); 151534558513SBenny Halevy xdr_encode_opaque_fixed(p, client_state->cl_confirm.data, NFS4_VERIFIER_SIZE); 1516d017931cSAndy Adamson hdr->nops++; 1517dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 15181da177e4SLinus Torvalds } 15191da177e4SLinus Torvalds 1520cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 15211da177e4SLinus Torvalds { 15228687b63aSAl Viro __be32 *p; 15231da177e4SLinus Torvalds 152413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 152534558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 15261da177e4SLinus Torvalds 15271da177e4SLinus Torvalds encode_stateid(xdr, args->context); 15281da177e4SLinus Torvalds 152913c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1530b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1531e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 153234558513SBenny Halevy *p = cpu_to_be32(args->count); 15331da177e4SLinus Torvalds 15341da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1535d017931cSAndy Adamson hdr->nops++; 1536dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 15371da177e4SLinus Torvalds } 15381da177e4SLinus Torvalds 1539cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 15401da177e4SLinus Torvalds { 15418687b63aSAl Viro __be32 *p; 15421da177e4SLinus Torvalds 154313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 15441da177e4SLinus Torvalds 1545e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 154634558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1547d017931cSAndy Adamson hdr->nops++; 1548dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 15491da177e4SLinus Torvalds } 15509b7b9fccSAndy Adamson 155199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 15529b7b9fccSAndy Adamson /* NFSv4.1 operations */ 155399fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 155499fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 155599fe60d0SBenny Halevy struct compound_hdr *hdr) 155699fe60d0SBenny Halevy { 155799fe60d0SBenny Halevy __be32 *p; 155899fe60d0SBenny Halevy 155913c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1560e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 156134558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 156299fe60d0SBenny Halevy 156399fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 156499fe60d0SBenny Halevy 156513c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1566e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1567e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 156834558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 156999fe60d0SBenny Halevy hdr->nops++; 157099fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 157199fe60d0SBenny Halevy } 1572fc931582SAndy Adamson 1573fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1574fc931582SAndy Adamson struct nfs41_create_session_args *args, 1575fc931582SAndy Adamson struct compound_hdr *hdr) 1576fc931582SAndy Adamson { 1577fc931582SAndy Adamson __be32 *p; 1578fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1579fc931582SAndy Adamson uint32_t len; 1580fc931582SAndy Adamson struct nfs_client *clp = args->client; 15818e0d46e1SMike Sager u32 max_resp_sz_cached; 15828e0d46e1SMike Sager 15838e0d46e1SMike Sager /* 15848e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 15858e0d46e1SMike Sager * 2 is the verifier. 15868e0d46e1SMike Sager */ 15878e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 15888e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1589fc931582SAndy Adamson 1590fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1591fc931582SAndy Adamson clp->cl_ipaddr); 159242edd698SBenny Halevy 159313c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1594e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1595b95be5a9SBenny Halevy p = xdr_encode_hyper(p, clp->cl_ex_clid); 1596e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1597e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1598fc931582SAndy Adamson 1599fc931582SAndy Adamson /* Fore Channel */ 1600e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1601e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1602e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 16038e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1604e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1605e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1606e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1607fc931582SAndy Adamson 1608fc931582SAndy Adamson /* Back Channel */ 1609e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1610e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1611e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1612e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1613e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1614e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1615e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1616fc931582SAndy Adamson 1617e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1618e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1619e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1620fc931582SAndy Adamson 1621fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1622e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1623811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1624e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1625e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 162634558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1627fc931582SAndy Adamson hdr->nops++; 1628fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1629fc931582SAndy Adamson } 16300f3e66c6SAndy Adamson 16310f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 16320f3e66c6SAndy Adamson struct nfs4_session *session, 16330f3e66c6SAndy Adamson struct compound_hdr *hdr) 16340f3e66c6SAndy Adamson { 16350f3e66c6SAndy Adamson __be32 *p; 163613c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1637e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 163834558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 16390f3e66c6SAndy Adamson hdr->nops++; 16400f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 16410f3e66c6SAndy Adamson } 164218019753SRicardo Labiaga 164318019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 164418019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 164518019753SRicardo Labiaga struct compound_hdr *hdr) 164618019753SRicardo Labiaga { 164718019753SRicardo Labiaga __be32 *p; 164818019753SRicardo Labiaga 164918019753SRicardo Labiaga p = reserve_space(xdr, 8); 165018019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 165118019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 165218019753SRicardo Labiaga hdr->nops++; 165318019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 165418019753SRicardo Labiaga } 165599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 165699fe60d0SBenny Halevy 16579b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 16589b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 16599b7b9fccSAndy Adamson struct compound_hdr *hdr) 16609b7b9fccSAndy Adamson { 16619b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 16629b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1663fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1664fc01cea9SAndy Adamson struct nfs4_slot *slot; 1665fc01cea9SAndy Adamson __be32 *p; 16669b7b9fccSAndy Adamson 16679b7b9fccSAndy Adamson if (!session) 16689b7b9fccSAndy Adamson return; 16699b7b9fccSAndy Adamson 1670fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1671fc01cea9SAndy Adamson 1672fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1673fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1674fc01cea9SAndy Adamson 167513c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1676e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1677fc01cea9SAndy Adamson 1678fc01cea9SAndy Adamson /* 1679fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1680fc01cea9SAndy Adamson */ 1681fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1682fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1683fc01cea9SAndy Adamson __func__, 1684fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1685fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1686fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1687fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1688fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1689fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 169093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1691e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1692e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1693e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 169434558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 16959b7b9fccSAndy Adamson hdr->nops++; 16969b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 16979b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 16989b7b9fccSAndy Adamson } 16999b7b9fccSAndy Adamson 17001da177e4SLinus Torvalds /* 17011da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 17021da177e4SLinus Torvalds */ 17031da177e4SLinus Torvalds 170466cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 170566cc0429SBenny Halevy { 170666cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 170766cc0429SBenny Halevy if (args->sa_session) 170866cc0429SBenny Halevy return args->sa_session->clp->cl_minorversion; 170966cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 171066cc0429SBenny Halevy return 0; 171166cc0429SBenny Halevy } 171266cc0429SBenny Halevy 17131da177e4SLinus Torvalds /* 17141da177e4SLinus Torvalds * Encode an ACCESS request 17151da177e4SLinus Torvalds */ 17168687b63aSAl Viro static int nfs4_xdr_enc_access(struct rpc_rqst *req, __be32 *p, const struct nfs4_accessargs *args) 17171da177e4SLinus Torvalds { 17181da177e4SLinus Torvalds struct xdr_stream xdr; 17191da177e4SLinus Torvalds struct compound_hdr hdr = { 172066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17211da177e4SLinus Torvalds }; 17221da177e4SLinus Torvalds 17231da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17240c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17259b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1726cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1727cf8cdbe5SAndy Adamson encode_access(&xdr, args->access, &hdr); 1728cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1729d017931cSAndy Adamson encode_nops(&hdr); 1730cf8cdbe5SAndy Adamson return 0; 17311da177e4SLinus Torvalds } 17321da177e4SLinus Torvalds 17331da177e4SLinus Torvalds /* 17341da177e4SLinus Torvalds * Encode LOOKUP request 17351da177e4SLinus Torvalds */ 17368687b63aSAl Viro static int nfs4_xdr_enc_lookup(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_arg *args) 17371da177e4SLinus Torvalds { 17381da177e4SLinus Torvalds struct xdr_stream xdr; 17391da177e4SLinus Torvalds struct compound_hdr hdr = { 174066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17411da177e4SLinus Torvalds }; 17421da177e4SLinus Torvalds 17431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17440c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17459b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1746cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1747cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 1748cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1749cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1750d017931cSAndy Adamson encode_nops(&hdr); 1751cf8cdbe5SAndy Adamson return 0; 17521da177e4SLinus Torvalds } 17531da177e4SLinus Torvalds 17541da177e4SLinus Torvalds /* 17551da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 17561da177e4SLinus Torvalds */ 17578687b63aSAl Viro static int nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, __be32 *p, const struct nfs4_lookup_root_arg *args) 17581da177e4SLinus Torvalds { 17591da177e4SLinus Torvalds struct xdr_stream xdr; 17601da177e4SLinus Torvalds struct compound_hdr hdr = { 176166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17621da177e4SLinus Torvalds }; 17631da177e4SLinus Torvalds 17641da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17650c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17669b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1767cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 1768cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1769cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1770d017931cSAndy Adamson encode_nops(&hdr); 1771cf8cdbe5SAndy Adamson return 0; 17721da177e4SLinus Torvalds } 17731da177e4SLinus Torvalds 17741da177e4SLinus Torvalds /* 17751da177e4SLinus Torvalds * Encode REMOVE request 17761da177e4SLinus Torvalds */ 17774fdc17b2STrond Myklebust static int nfs4_xdr_enc_remove(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs *args) 17781da177e4SLinus Torvalds { 17791da177e4SLinus Torvalds struct xdr_stream xdr; 17801da177e4SLinus Torvalds struct compound_hdr hdr = { 178166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 17821da177e4SLinus Torvalds }; 17831da177e4SLinus Torvalds 17841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 17850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 17869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1787cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1788cf8cdbe5SAndy Adamson encode_remove(&xdr, &args->name, &hdr); 1789cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1790d017931cSAndy Adamson encode_nops(&hdr); 1791cf8cdbe5SAndy Adamson return 0; 17921da177e4SLinus Torvalds } 17931da177e4SLinus Torvalds 17941da177e4SLinus Torvalds /* 17951da177e4SLinus Torvalds * Encode RENAME request 17961da177e4SLinus Torvalds */ 17978687b63aSAl Viro static int nfs4_xdr_enc_rename(struct rpc_rqst *req, __be32 *p, const struct nfs4_rename_arg *args) 17981da177e4SLinus Torvalds { 17991da177e4SLinus Torvalds struct xdr_stream xdr; 18001da177e4SLinus Torvalds struct compound_hdr hdr = { 180166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18021da177e4SLinus Torvalds }; 18031da177e4SLinus Torvalds 18041da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18050c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18069b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1807cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->old_dir, &hdr); 1808cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1809cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->new_dir, &hdr); 1810cf8cdbe5SAndy Adamson encode_rename(&xdr, args->old_name, args->new_name, &hdr); 1811cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1812cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1813cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1814d017931cSAndy Adamson encode_nops(&hdr); 1815cf8cdbe5SAndy Adamson return 0; 18161da177e4SLinus Torvalds } 18171da177e4SLinus Torvalds 18181da177e4SLinus Torvalds /* 18191da177e4SLinus Torvalds * Encode LINK request 18201da177e4SLinus Torvalds */ 18218687b63aSAl Viro static int nfs4_xdr_enc_link(struct rpc_rqst *req, __be32 *p, const struct nfs4_link_arg *args) 18221da177e4SLinus Torvalds { 18231da177e4SLinus Torvalds struct xdr_stream xdr; 18241da177e4SLinus Torvalds struct compound_hdr hdr = { 182566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18261da177e4SLinus Torvalds }; 18271da177e4SLinus Torvalds 18281da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18290c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18309b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1831cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1832cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1833cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1834cf8cdbe5SAndy Adamson encode_link(&xdr, args->name, &hdr); 1835cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1836cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1837cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1838d017931cSAndy Adamson encode_nops(&hdr); 1839cf8cdbe5SAndy Adamson return 0; 18401da177e4SLinus Torvalds } 18411da177e4SLinus Torvalds 18421da177e4SLinus Torvalds /* 18431da177e4SLinus Torvalds * Encode CREATE request 18441da177e4SLinus Torvalds */ 18458687b63aSAl Viro static int nfs4_xdr_enc_create(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18461da177e4SLinus Torvalds { 18471da177e4SLinus Torvalds struct xdr_stream xdr; 18481da177e4SLinus Torvalds struct compound_hdr hdr = { 184966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18501da177e4SLinus Torvalds }; 18511da177e4SLinus Torvalds 18521da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18530c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18549b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1855cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 1856cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1857cf8cdbe5SAndy Adamson encode_create(&xdr, args, &hdr); 1858cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1859cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1860cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1861cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1862d017931cSAndy Adamson encode_nops(&hdr); 1863cf8cdbe5SAndy Adamson return 0; 18641da177e4SLinus Torvalds } 18651da177e4SLinus Torvalds 18661da177e4SLinus Torvalds /* 18671da177e4SLinus Torvalds * Encode SYMLINK request 18681da177e4SLinus Torvalds */ 18698687b63aSAl Viro static int nfs4_xdr_enc_symlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_create_arg *args) 18701da177e4SLinus Torvalds { 18711da177e4SLinus Torvalds return nfs4_xdr_enc_create(req, p, args); 18721da177e4SLinus Torvalds } 18731da177e4SLinus Torvalds 18741da177e4SLinus Torvalds /* 18751da177e4SLinus Torvalds * Encode GETATTR request 18761da177e4SLinus Torvalds */ 18778687b63aSAl Viro static int nfs4_xdr_enc_getattr(struct rpc_rqst *req, __be32 *p, const struct nfs4_getattr_arg *args) 18781da177e4SLinus Torvalds { 18791da177e4SLinus Torvalds struct xdr_stream xdr; 18801da177e4SLinus Torvalds struct compound_hdr hdr = { 188166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 18821da177e4SLinus Torvalds }; 18831da177e4SLinus Torvalds 18841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 18850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 18869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1887cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1888cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1889d017931cSAndy Adamson encode_nops(&hdr); 1890cf8cdbe5SAndy Adamson return 0; 18911da177e4SLinus Torvalds } 18921da177e4SLinus Torvalds 18931da177e4SLinus Torvalds /* 18941da177e4SLinus Torvalds * Encode a CLOSE request 18951da177e4SLinus Torvalds */ 18968687b63aSAl Viro static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 18971da177e4SLinus Torvalds { 18981da177e4SLinus Torvalds struct xdr_stream xdr; 18991da177e4SLinus Torvalds struct compound_hdr hdr = { 190066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19011da177e4SLinus Torvalds }; 19021da177e4SLinus Torvalds 19031da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19040c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19059b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1906cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1907cf8cdbe5SAndy Adamson encode_close(&xdr, args, &hdr); 1908cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1909d017931cSAndy Adamson encode_nops(&hdr); 1910cf8cdbe5SAndy Adamson return 0; 19111da177e4SLinus Torvalds } 19121da177e4SLinus Torvalds 19131da177e4SLinus Torvalds /* 19141da177e4SLinus Torvalds * Encode an OPEN request 19151da177e4SLinus Torvalds */ 19168687b63aSAl Viro static int nfs4_xdr_enc_open(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19171da177e4SLinus Torvalds { 19181da177e4SLinus Torvalds struct xdr_stream xdr; 19191da177e4SLinus Torvalds struct compound_hdr hdr = { 192066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19211da177e4SLinus Torvalds }; 19221da177e4SLinus Torvalds 19231da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19240c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19259b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1926cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1927cf8cdbe5SAndy Adamson encode_savefh(&xdr, &hdr); 1928cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1929cf8cdbe5SAndy Adamson encode_getfh(&xdr, &hdr); 1930cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1931cf8cdbe5SAndy Adamson encode_restorefh(&xdr, &hdr); 1932cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1933d017931cSAndy Adamson encode_nops(&hdr); 1934cf8cdbe5SAndy Adamson return 0; 19351da177e4SLinus Torvalds } 19361da177e4SLinus Torvalds 19371da177e4SLinus Torvalds /* 19381da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 19391da177e4SLinus Torvalds */ 19408687b63aSAl Viro static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_open_confirmargs *args) 19411da177e4SLinus Torvalds { 19421da177e4SLinus Torvalds struct xdr_stream xdr; 19431da177e4SLinus Torvalds struct compound_hdr hdr = { 1944d017931cSAndy Adamson .nops = 0, 19451da177e4SLinus Torvalds }; 19461da177e4SLinus Torvalds 19471da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19480c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 1949cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1950cf8cdbe5SAndy Adamson encode_open_confirm(&xdr, args, &hdr); 1951d017931cSAndy Adamson encode_nops(&hdr); 1952cf8cdbe5SAndy Adamson return 0; 19531da177e4SLinus Torvalds } 19541da177e4SLinus Torvalds 19551da177e4SLinus Torvalds /* 19561da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 19571da177e4SLinus Torvalds */ 19588687b63aSAl Viro static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, __be32 *p, struct nfs_openargs *args) 19591da177e4SLinus Torvalds { 19601da177e4SLinus Torvalds struct xdr_stream xdr; 19611da177e4SLinus Torvalds struct compound_hdr hdr = { 196266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19631da177e4SLinus Torvalds }; 19641da177e4SLinus Torvalds 19651da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19660c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19679b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1968cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1969cf8cdbe5SAndy Adamson encode_open(&xdr, args, &hdr); 1970cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1971d017931cSAndy Adamson encode_nops(&hdr); 1972cf8cdbe5SAndy Adamson return 0; 19731da177e4SLinus Torvalds } 19741da177e4SLinus Torvalds 19751da177e4SLinus Torvalds /* 19761da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 19771da177e4SLinus Torvalds */ 19788687b63aSAl Viro static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args) 19791da177e4SLinus Torvalds { 19801da177e4SLinus Torvalds struct xdr_stream xdr; 19811da177e4SLinus Torvalds struct compound_hdr hdr = { 198266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19831da177e4SLinus Torvalds }; 19841da177e4SLinus Torvalds 19851da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 19860c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 19879b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 1988cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 1989cf8cdbe5SAndy Adamson encode_open_downgrade(&xdr, args, &hdr); 1990cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 1991d017931cSAndy Adamson encode_nops(&hdr); 1992cf8cdbe5SAndy Adamson return 0; 19931da177e4SLinus Torvalds } 19941da177e4SLinus Torvalds 19951da177e4SLinus Torvalds /* 19961da177e4SLinus Torvalds * Encode a LOCK request 19971da177e4SLinus Torvalds */ 19988687b63aSAl Viro static int nfs4_xdr_enc_lock(struct rpc_rqst *req, __be32 *p, struct nfs_lock_args *args) 19991da177e4SLinus Torvalds { 20001da177e4SLinus Torvalds struct xdr_stream xdr; 20011da177e4SLinus Torvalds struct compound_hdr hdr = { 200266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20031da177e4SLinus Torvalds }; 20041da177e4SLinus Torvalds 20051da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20060c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20079b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2008cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2009cf8cdbe5SAndy Adamson encode_lock(&xdr, args, &hdr); 2010d017931cSAndy Adamson encode_nops(&hdr); 2011cf8cdbe5SAndy Adamson return 0; 20121da177e4SLinus Torvalds } 20131da177e4SLinus Torvalds 20141da177e4SLinus Torvalds /* 20151da177e4SLinus Torvalds * Encode a LOCKT request 20161da177e4SLinus Torvalds */ 20178687b63aSAl Viro static int nfs4_xdr_enc_lockt(struct rpc_rqst *req, __be32 *p, struct nfs_lockt_args *args) 20181da177e4SLinus Torvalds { 20191da177e4SLinus Torvalds struct xdr_stream xdr; 20201da177e4SLinus Torvalds struct compound_hdr hdr = { 202166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20221da177e4SLinus Torvalds }; 20231da177e4SLinus Torvalds 20241da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20250c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20269b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2027cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2028cf8cdbe5SAndy Adamson encode_lockt(&xdr, args, &hdr); 2029d017931cSAndy Adamson encode_nops(&hdr); 2030cf8cdbe5SAndy Adamson return 0; 20311da177e4SLinus Torvalds } 20321da177e4SLinus Torvalds 20331da177e4SLinus Torvalds /* 20341da177e4SLinus Torvalds * Encode a LOCKU request 20351da177e4SLinus Torvalds */ 20368687b63aSAl Viro static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_args *args) 20371da177e4SLinus Torvalds { 20381da177e4SLinus Torvalds struct xdr_stream xdr; 20391da177e4SLinus Torvalds struct compound_hdr hdr = { 204066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20411da177e4SLinus Torvalds }; 20421da177e4SLinus Torvalds 20431da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20440c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20459b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2046cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2047cf8cdbe5SAndy Adamson encode_locku(&xdr, args, &hdr); 2048d017931cSAndy Adamson encode_nops(&hdr); 2049cf8cdbe5SAndy Adamson return 0; 20501da177e4SLinus Torvalds } 20511da177e4SLinus Torvalds 20521da177e4SLinus Torvalds /* 20531da177e4SLinus Torvalds * Encode a READLINK request 20541da177e4SLinus Torvalds */ 20558687b63aSAl Viro static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct nfs4_readlink *args) 20561da177e4SLinus Torvalds { 20571da177e4SLinus Torvalds struct xdr_stream xdr; 20581da177e4SLinus Torvalds struct compound_hdr hdr = { 205966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20601da177e4SLinus Torvalds }; 20611da177e4SLinus Torvalds 20621da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20630c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20649b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2065cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2066cf8cdbe5SAndy Adamson encode_readlink(&xdr, args, req, &hdr); 2067e3a535e1STrond Myklebust 206828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2069e3a535e1STrond Myklebust args->pgbase, args->pglen); 2070d017931cSAndy Adamson encode_nops(&hdr); 2071cf8cdbe5SAndy Adamson return 0; 20721da177e4SLinus Torvalds } 20731da177e4SLinus Torvalds 20741da177e4SLinus Torvalds /* 20751da177e4SLinus Torvalds * Encode a READDIR request 20761da177e4SLinus Torvalds */ 20778687b63aSAl Viro static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nfs4_readdir_arg *args) 20781da177e4SLinus Torvalds { 20791da177e4SLinus Torvalds struct xdr_stream xdr; 20801da177e4SLinus Torvalds struct compound_hdr hdr = { 208166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20821da177e4SLinus Torvalds }; 20831da177e4SLinus Torvalds 20841da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 20850c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 20869b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2087cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2088cf8cdbe5SAndy Adamson encode_readdir(&xdr, args, req, &hdr); 2089d6ac02dfSTrond Myklebust 209028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2091d6ac02dfSTrond Myklebust args->pgbase, args->count); 2092d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 209328f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2094d6ac02dfSTrond Myklebust args->pgbase, args->count); 2095d017931cSAndy Adamson encode_nops(&hdr); 2096cf8cdbe5SAndy Adamson return 0; 20971da177e4SLinus Torvalds } 20981da177e4SLinus Torvalds 20991da177e4SLinus Torvalds /* 21001da177e4SLinus Torvalds * Encode a READ request 21011da177e4SLinus Torvalds */ 21028687b63aSAl Viro static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args) 21031da177e4SLinus Torvalds { 21041da177e4SLinus Torvalds struct xdr_stream xdr; 21051da177e4SLinus Torvalds struct compound_hdr hdr = { 210666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21071da177e4SLinus Torvalds }; 21081da177e4SLinus Torvalds 21091da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21100c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21119b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2112cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2113cf8cdbe5SAndy Adamson encode_read(&xdr, args, &hdr); 21141da177e4SLinus Torvalds 211528f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 21161da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 21174f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2118d017931cSAndy Adamson encode_nops(&hdr); 2119cf8cdbe5SAndy Adamson return 0; 21201da177e4SLinus Torvalds } 21211da177e4SLinus Torvalds 21221da177e4SLinus Torvalds /* 21231da177e4SLinus Torvalds * Encode an SETATTR request 21241da177e4SLinus Torvalds */ 21258687b63aSAl Viro static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args) 21261da177e4SLinus Torvalds { 21271da177e4SLinus Torvalds struct xdr_stream xdr; 21281da177e4SLinus Torvalds struct compound_hdr hdr = { 212966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21301da177e4SLinus Torvalds }; 21311da177e4SLinus Torvalds 21321da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21330c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21349b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2135cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2136cf8cdbe5SAndy Adamson encode_setattr(&xdr, args, args->server, &hdr); 2137cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2138d017931cSAndy Adamson encode_nops(&hdr); 2139cf8cdbe5SAndy Adamson return 0; 21401da177e4SLinus Torvalds } 21411da177e4SLinus Torvalds 21421da177e4SLinus Torvalds /* 2143029d105eSJ. Bruce Fields * Encode a GETACL request 2144029d105eSJ. Bruce Fields */ 2145029d105eSJ. Bruce Fields static int 21468687b63aSAl Viro nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p, 2147029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2148029d105eSJ. Bruce Fields { 2149029d105eSJ. Bruce Fields struct xdr_stream xdr; 2150029d105eSJ. Bruce Fields struct compound_hdr hdr = { 215166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2152029d105eSJ. Bruce Fields }; 215328f56694SBenny Halevy uint32_t replen; 2154029d105eSJ. Bruce Fields 2155029d105eSJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21560c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21579b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2158cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2159d327cf74SJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; 2160cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr); 2161cf8cdbe5SAndy Adamson 216228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2163029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2164d017931cSAndy Adamson encode_nops(&hdr); 2165cf8cdbe5SAndy Adamson return 0; 2166029d105eSJ. Bruce Fields } 2167029d105eSJ. Bruce Fields 2168029d105eSJ. Bruce Fields /* 21691da177e4SLinus Torvalds * Encode a WRITE request 21701da177e4SLinus Torvalds */ 21718687b63aSAl Viro static int nfs4_xdr_enc_write(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21721da177e4SLinus Torvalds { 21731da177e4SLinus Torvalds struct xdr_stream xdr; 21741da177e4SLinus Torvalds struct compound_hdr hdr = { 217566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21761da177e4SLinus Torvalds }; 21771da177e4SLinus Torvalds 21781da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 21790c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 21809b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2181cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2182cf8cdbe5SAndy Adamson encode_write(&xdr, args, &hdr); 21834f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 2184cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2185d017931cSAndy Adamson encode_nops(&hdr); 2186cf8cdbe5SAndy Adamson return 0; 21871da177e4SLinus Torvalds } 21881da177e4SLinus Torvalds 21891da177e4SLinus Torvalds /* 21901da177e4SLinus Torvalds * a COMMIT request 21911da177e4SLinus Torvalds */ 21928687b63aSAl Viro static int nfs4_xdr_enc_commit(struct rpc_rqst *req, __be32 *p, struct nfs_writeargs *args) 21931da177e4SLinus Torvalds { 21941da177e4SLinus Torvalds struct xdr_stream xdr; 21951da177e4SLinus Torvalds struct compound_hdr hdr = { 219666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21971da177e4SLinus Torvalds }; 21981da177e4SLinus Torvalds 21991da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22000c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22019b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2202cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2203cf8cdbe5SAndy Adamson encode_commit(&xdr, args, &hdr); 2204cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2205d017931cSAndy Adamson encode_nops(&hdr); 2206cf8cdbe5SAndy Adamson return 0; 22071da177e4SLinus Torvalds } 22081da177e4SLinus Torvalds 22091da177e4SLinus Torvalds /* 22101da177e4SLinus Torvalds * FSINFO request 22111da177e4SLinus Torvalds */ 22128687b63aSAl Viro static int nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, __be32 *p, struct nfs4_fsinfo_arg *args) 22131da177e4SLinus Torvalds { 22141da177e4SLinus Torvalds struct xdr_stream xdr; 22151da177e4SLinus Torvalds struct compound_hdr hdr = { 221666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22171da177e4SLinus Torvalds }; 22181da177e4SLinus Torvalds 22191da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22200c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22219b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2222cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2223cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, args->bitmask, &hdr); 2224d017931cSAndy Adamson encode_nops(&hdr); 2225cf8cdbe5SAndy Adamson return 0; 22261da177e4SLinus Torvalds } 22271da177e4SLinus Torvalds 22281da177e4SLinus Torvalds /* 22291da177e4SLinus Torvalds * a PATHCONF request 22301da177e4SLinus Torvalds */ 22318687b63aSAl Viro static int nfs4_xdr_enc_pathconf(struct rpc_rqst *req, __be32 *p, const struct nfs4_pathconf_arg *args) 22321da177e4SLinus Torvalds { 22331da177e4SLinus Torvalds struct xdr_stream xdr; 22341da177e4SLinus Torvalds struct compound_hdr hdr = { 223566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22361da177e4SLinus Torvalds }; 22371da177e4SLinus Torvalds 22381da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22390c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22409b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2241cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2242cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2243d017931cSAndy Adamson &hdr); 2244d017931cSAndy Adamson encode_nops(&hdr); 2245cf8cdbe5SAndy Adamson return 0; 22461da177e4SLinus Torvalds } 22471da177e4SLinus Torvalds 22481da177e4SLinus Torvalds /* 22491da177e4SLinus Torvalds * a STATFS request 22501da177e4SLinus Torvalds */ 22518687b63aSAl Viro static int nfs4_xdr_enc_statfs(struct rpc_rqst *req, __be32 *p, const struct nfs4_statfs_arg *args) 22521da177e4SLinus Torvalds { 22531da177e4SLinus Torvalds struct xdr_stream xdr; 22541da177e4SLinus Torvalds struct compound_hdr hdr = { 225566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22561da177e4SLinus Torvalds }; 22571da177e4SLinus Torvalds 22581da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22590c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22609b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2261cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 2262cf8cdbe5SAndy Adamson encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2263d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2264d017931cSAndy Adamson encode_nops(&hdr); 2265cf8cdbe5SAndy Adamson return 0; 22661da177e4SLinus Torvalds } 22671da177e4SLinus Torvalds 22681da177e4SLinus Torvalds /* 22691da177e4SLinus Torvalds * GETATTR_BITMAP request 22701da177e4SLinus Torvalds */ 227143652ad5SBenny Halevy static int nfs4_xdr_enc_server_caps(struct rpc_rqst *req, __be32 *p, 227243652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 22731da177e4SLinus Torvalds { 22741da177e4SLinus Torvalds struct xdr_stream xdr; 22751da177e4SLinus Torvalds struct compound_hdr hdr = { 227666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22771da177e4SLinus Torvalds }; 22781da177e4SLinus Torvalds 22791da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 22800c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 22819b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 228243652ad5SBenny Halevy encode_putfh(&xdr, args->fhandle, &hdr); 2283cf8cdbe5SAndy Adamson encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 22841da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 22851da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2286d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2287d017931cSAndy Adamson encode_nops(&hdr); 2288cf8cdbe5SAndy Adamson return 0; 22891da177e4SLinus Torvalds } 22901da177e4SLinus Torvalds 22911da177e4SLinus Torvalds /* 22921da177e4SLinus Torvalds * a RENEW request 22931da177e4SLinus Torvalds */ 22948687b63aSAl Viro static int nfs4_xdr_enc_renew(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 22951da177e4SLinus Torvalds { 22961da177e4SLinus Torvalds struct xdr_stream xdr; 22971da177e4SLinus Torvalds struct compound_hdr hdr = { 2298d017931cSAndy Adamson .nops = 0, 22991da177e4SLinus Torvalds }; 23001da177e4SLinus Torvalds 23011da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23020c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2303cf8cdbe5SAndy Adamson encode_renew(&xdr, clp, &hdr); 2304d017931cSAndy Adamson encode_nops(&hdr); 2305cf8cdbe5SAndy Adamson return 0; 23061da177e4SLinus Torvalds } 23071da177e4SLinus Torvalds 23081da177e4SLinus Torvalds /* 23091da177e4SLinus Torvalds * a SETCLIENTID request 23101da177e4SLinus Torvalds */ 23118687b63aSAl Viro static int nfs4_xdr_enc_setclientid(struct rpc_rqst *req, __be32 *p, struct nfs4_setclientid *sc) 23121da177e4SLinus Torvalds { 23131da177e4SLinus Torvalds struct xdr_stream xdr; 23141da177e4SLinus Torvalds struct compound_hdr hdr = { 2315d017931cSAndy Adamson .nops = 0, 23161da177e4SLinus Torvalds }; 23171da177e4SLinus Torvalds 23181da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23190c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2320cf8cdbe5SAndy Adamson encode_setclientid(&xdr, sc, &hdr); 2321d017931cSAndy Adamson encode_nops(&hdr); 2322cf8cdbe5SAndy Adamson return 0; 23231da177e4SLinus Torvalds } 23241da177e4SLinus Torvalds 23251da177e4SLinus Torvalds /* 23261da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 23271da177e4SLinus Torvalds */ 23288687b63aSAl Viro static int nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_client *clp) 23291da177e4SLinus Torvalds { 23301da177e4SLinus Torvalds struct xdr_stream xdr; 23311da177e4SLinus Torvalds struct compound_hdr hdr = { 2332d017931cSAndy Adamson .nops = 0, 23331da177e4SLinus Torvalds }; 23341da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 23351da177e4SLinus Torvalds 23361da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23370c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 2338cf8cdbe5SAndy Adamson encode_setclientid_confirm(&xdr, clp, &hdr); 2339cf8cdbe5SAndy Adamson encode_putrootfh(&xdr, &hdr); 2340cf8cdbe5SAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 2341d017931cSAndy Adamson encode_nops(&hdr); 2342cf8cdbe5SAndy Adamson return 0; 23431da177e4SLinus Torvalds } 23441da177e4SLinus Torvalds 23451da177e4SLinus Torvalds /* 23461da177e4SLinus Torvalds * DELEGRETURN request 23471da177e4SLinus Torvalds */ 23488687b63aSAl Viro static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, __be32 *p, const struct nfs4_delegreturnargs *args) 23491da177e4SLinus Torvalds { 23501da177e4SLinus Torvalds struct xdr_stream xdr; 23511da177e4SLinus Torvalds struct compound_hdr hdr = { 235266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23531da177e4SLinus Torvalds }; 23541da177e4SLinus Torvalds 23551da177e4SLinus Torvalds xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23560c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23579b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2358cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fhandle, &hdr); 2359cf8cdbe5SAndy Adamson encode_delegreturn(&xdr, args->stateid, &hdr); 2360cf8cdbe5SAndy Adamson encode_getfattr(&xdr, args->bitmask, &hdr); 2361d017931cSAndy Adamson encode_nops(&hdr); 2362cf8cdbe5SAndy Adamson return 0; 23631da177e4SLinus Torvalds } 23641da177e4SLinus Torvalds 23651da177e4SLinus Torvalds /* 2366683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2367683b57b4STrond Myklebust */ 23688687b63aSAl Viro static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs4_fs_locations_arg *args) 2369683b57b4STrond Myklebust { 2370683b57b4STrond Myklebust struct xdr_stream xdr; 2371683b57b4STrond Myklebust struct compound_hdr hdr = { 237266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2373683b57b4STrond Myklebust }; 237428f56694SBenny Halevy uint32_t replen; 2375683b57b4STrond Myklebust 2376683b57b4STrond Myklebust xdr_init_encode(&xdr, &req->rq_snd_buf, p); 23770c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 23789b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 2379cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->dir_fh, &hdr); 2380cf8cdbe5SAndy Adamson encode_lookup(&xdr, args->name, &hdr); 238128f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 2382cf8cdbe5SAndy Adamson encode_fs_locations(&xdr, args->bitmask, &hdr); 2383cf8cdbe5SAndy Adamson 238428f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2385683b57b4STrond Myklebust 0, PAGE_SIZE); 2386d017931cSAndy Adamson encode_nops(&hdr); 2387cf8cdbe5SAndy Adamson return 0; 2388683b57b4STrond Myklebust } 2389683b57b4STrond Myklebust 239099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 239199fe60d0SBenny Halevy /* 239299fe60d0SBenny Halevy * EXCHANGE_ID request 239399fe60d0SBenny Halevy */ 239499fe60d0SBenny Halevy static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p, 239599fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 239699fe60d0SBenny Halevy { 239799fe60d0SBenny Halevy struct xdr_stream xdr; 239899fe60d0SBenny Halevy struct compound_hdr hdr = { 239999fe60d0SBenny Halevy .minorversion = args->client->cl_minorversion, 240099fe60d0SBenny Halevy }; 240199fe60d0SBenny Halevy 240299fe60d0SBenny Halevy xdr_init_encode(&xdr, &req->rq_snd_buf, p); 240399fe60d0SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 240499fe60d0SBenny Halevy encode_exchange_id(&xdr, args, &hdr); 240599fe60d0SBenny Halevy encode_nops(&hdr); 240699fe60d0SBenny Halevy return 0; 240799fe60d0SBenny Halevy } 24082050f0ccSAndy Adamson 24092050f0ccSAndy Adamson /* 2410fc931582SAndy Adamson * a CREATE_SESSION request 2411fc931582SAndy Adamson */ 2412fc931582SAndy Adamson static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p, 2413fc931582SAndy Adamson struct nfs41_create_session_args *args) 2414fc931582SAndy Adamson { 2415fc931582SAndy Adamson struct xdr_stream xdr; 2416fc931582SAndy Adamson struct compound_hdr hdr = { 2417fc931582SAndy Adamson .minorversion = args->client->cl_minorversion, 2418fc931582SAndy Adamson }; 2419fc931582SAndy Adamson 2420fc931582SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2421fc931582SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2422fc931582SAndy Adamson encode_create_session(&xdr, args, &hdr); 2423fc931582SAndy Adamson encode_nops(&hdr); 2424fc931582SAndy Adamson return 0; 2425fc931582SAndy Adamson } 2426fc931582SAndy Adamson 2427fc931582SAndy Adamson /* 24280f3e66c6SAndy Adamson * a DESTROY_SESSION request 24290f3e66c6SAndy Adamson */ 24300f3e66c6SAndy Adamson static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p, 24310f3e66c6SAndy Adamson struct nfs4_session *session) 24320f3e66c6SAndy Adamson { 24330f3e66c6SAndy Adamson struct xdr_stream xdr; 24340f3e66c6SAndy Adamson struct compound_hdr hdr = { 24350f3e66c6SAndy Adamson .minorversion = session->clp->cl_minorversion, 24360f3e66c6SAndy Adamson }; 24370f3e66c6SAndy Adamson 24380f3e66c6SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24390f3e66c6SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24400f3e66c6SAndy Adamson encode_destroy_session(&xdr, session, &hdr); 24410f3e66c6SAndy Adamson encode_nops(&hdr); 24420f3e66c6SAndy Adamson return 0; 24430f3e66c6SAndy Adamson } 24440f3e66c6SAndy Adamson 24450f3e66c6SAndy Adamson /* 2446fc01cea9SAndy Adamson * a SEQUENCE request 2447fc01cea9SAndy Adamson */ 2448fc01cea9SAndy Adamson static int nfs4_xdr_enc_sequence(struct rpc_rqst *req, uint32_t *p, 2449fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2450fc01cea9SAndy Adamson { 2451fc01cea9SAndy Adamson struct xdr_stream xdr; 2452fc01cea9SAndy Adamson struct compound_hdr hdr = { 2453fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2454fc01cea9SAndy Adamson }; 2455fc01cea9SAndy Adamson 2456fc01cea9SAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 2457fc01cea9SAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 2458fc01cea9SAndy Adamson encode_sequence(&xdr, args, &hdr); 2459fc01cea9SAndy Adamson encode_nops(&hdr); 2460fc01cea9SAndy Adamson return 0; 2461fc01cea9SAndy Adamson } 2462fc01cea9SAndy Adamson 2463fc01cea9SAndy Adamson /* 24642050f0ccSAndy Adamson * a GET_LEASE_TIME request 24652050f0ccSAndy Adamson */ 24662050f0ccSAndy Adamson static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p, 24672050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 24682050f0ccSAndy Adamson { 24692050f0ccSAndy Adamson struct xdr_stream xdr; 24702050f0ccSAndy Adamson struct compound_hdr hdr = { 24712050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 24722050f0ccSAndy Adamson }; 24732050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24742050f0ccSAndy Adamson 24752050f0ccSAndy Adamson xdr_init_encode(&xdr, &req->rq_snd_buf, p); 24762050f0ccSAndy Adamson encode_compound_hdr(&xdr, req, &hdr); 24772050f0ccSAndy Adamson encode_sequence(&xdr, &args->la_seq_args, &hdr); 24782050f0ccSAndy Adamson encode_putrootfh(&xdr, &hdr); 24792050f0ccSAndy Adamson encode_fsinfo(&xdr, lease_bitmap, &hdr); 24802050f0ccSAndy Adamson encode_nops(&hdr); 24812050f0ccSAndy Adamson return 0; 24822050f0ccSAndy Adamson } 248318019753SRicardo Labiaga 248418019753SRicardo Labiaga /* 248518019753SRicardo Labiaga * a RECLAIM_COMPLETE request 248618019753SRicardo Labiaga */ 248718019753SRicardo Labiaga static int nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, uint32_t *p, 248818019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 248918019753SRicardo Labiaga { 249018019753SRicardo Labiaga struct xdr_stream xdr; 249118019753SRicardo Labiaga struct compound_hdr hdr = { 249218019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 249318019753SRicardo Labiaga }; 249418019753SRicardo Labiaga 249518019753SRicardo Labiaga xdr_init_encode(&xdr, &req->rq_snd_buf, p); 249618019753SRicardo Labiaga encode_compound_hdr(&xdr, req, &hdr); 249718019753SRicardo Labiaga encode_sequence(&xdr, &args->seq_args, &hdr); 249818019753SRicardo Labiaga encode_reclaim_complete(&xdr, args, &hdr); 249918019753SRicardo Labiaga encode_nops(&hdr); 250018019753SRicardo Labiaga return 0; 250118019753SRicardo Labiaga } 250218019753SRicardo Labiaga 250399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 250499fe60d0SBenny Halevy 2505686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2506686841b3SBenny Halevy { 2507686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2508686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2509686841b3SBenny Halevy func, xdr->end - xdr->p); 2510686841b3SBenny Halevy } 25111da177e4SLinus Torvalds 2512683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 25131da177e4SLinus Torvalds { 25148687b63aSAl Viro __be32 *p; 25151da177e4SLinus Torvalds 2516c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2517c0eae66eSBenny Halevy if (unlikely(!p)) 2518c0eae66eSBenny Halevy goto out_overflow; 2519cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2520c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2521c0eae66eSBenny Halevy if (unlikely(!p)) 2522c0eae66eSBenny Halevy goto out_overflow; 25231da177e4SLinus Torvalds *string = (char *)p; 25241da177e4SLinus Torvalds return 0; 2525c0eae66eSBenny Halevy out_overflow: 2526c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2527c0eae66eSBenny Halevy return -EIO; 25281da177e4SLinus Torvalds } 25291da177e4SLinus Torvalds 25301da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 25311da177e4SLinus Torvalds { 25328687b63aSAl Viro __be32 *p; 25331da177e4SLinus Torvalds 2534c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2535c0eae66eSBenny Halevy if (unlikely(!p)) 2536c0eae66eSBenny Halevy goto out_overflow; 25376f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2538cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 25391da177e4SLinus Torvalds 2540c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2541c0eae66eSBenny Halevy if (unlikely(!p)) 2542c0eae66eSBenny Halevy goto out_overflow; 25431da177e4SLinus Torvalds hdr->tag = (char *)p; 25441da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2545cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2546aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2547aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 25481da177e4SLinus Torvalds return 0; 2549c0eae66eSBenny Halevy out_overflow: 2550c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2551c0eae66eSBenny Halevy return -EIO; 25521da177e4SLinus Torvalds } 25531da177e4SLinus Torvalds 25541da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 25551da177e4SLinus Torvalds { 25568687b63aSAl Viro __be32 *p; 25571da177e4SLinus Torvalds uint32_t opnum; 25581da177e4SLinus Torvalds int32_t nfserr; 25591da177e4SLinus Torvalds 2560c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2561c0eae66eSBenny Halevy if (unlikely(!p)) 2562c0eae66eSBenny Halevy goto out_overflow; 25636f723f77SBenny Halevy opnum = be32_to_cpup(p++); 25641da177e4SLinus Torvalds if (opnum != expected) { 2565fe82a183SChuck Lever dprintk("nfs: Server returned operation" 25661da177e4SLinus Torvalds " %d but we issued a request for %d\n", 25671da177e4SLinus Torvalds opnum, expected); 25681da177e4SLinus Torvalds return -EIO; 25691da177e4SLinus Torvalds } 2570cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 25711da177e4SLinus Torvalds if (nfserr != NFS_OK) 2572856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 25731da177e4SLinus Torvalds return 0; 2574c0eae66eSBenny Halevy out_overflow: 2575c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2576c0eae66eSBenny Halevy return -EIO; 25771da177e4SLinus Torvalds } 25781da177e4SLinus Torvalds 25791da177e4SLinus Torvalds /* Dummy routine */ 2580adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 25811da177e4SLinus Torvalds { 25828687b63aSAl Viro __be32 *p; 2583683b57b4STrond Myklebust unsigned int strlen; 25841da177e4SLinus Torvalds char *str; 25851da177e4SLinus Torvalds 2586c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2587c0eae66eSBenny Halevy if (likely(p)) 25881da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2589c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2590c0eae66eSBenny Halevy return -EIO; 25911da177e4SLinus Torvalds } 25921da177e4SLinus Torvalds 25931da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 25941da177e4SLinus Torvalds { 25958687b63aSAl Viro uint32_t bmlen; 25968687b63aSAl Viro __be32 *p; 25971da177e4SLinus Torvalds 2598c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2599c0eae66eSBenny Halevy if (unlikely(!p)) 2600c0eae66eSBenny Halevy goto out_overflow; 2601cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 26021da177e4SLinus Torvalds 26031da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2604c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2605c0eae66eSBenny Halevy if (unlikely(!p)) 2606c0eae66eSBenny Halevy goto out_overflow; 26071da177e4SLinus Torvalds if (bmlen > 0) { 26086f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 26091da177e4SLinus Torvalds if (bmlen > 1) 2610cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 26111da177e4SLinus Torvalds } 26121da177e4SLinus Torvalds return 0; 2613c0eae66eSBenny Halevy out_overflow: 2614c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2615c0eae66eSBenny Halevy return -EIO; 26161da177e4SLinus Torvalds } 26171da177e4SLinus Torvalds 26188687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 26191da177e4SLinus Torvalds { 26208687b63aSAl Viro __be32 *p; 26211da177e4SLinus Torvalds 2622c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2623c0eae66eSBenny Halevy if (unlikely(!p)) 2624c0eae66eSBenny Halevy goto out_overflow; 2625cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 26261da177e4SLinus Torvalds *savep = xdr->p; 26271da177e4SLinus Torvalds return 0; 2628c0eae66eSBenny Halevy out_overflow: 2629c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2630c0eae66eSBenny Halevy return -EIO; 26311da177e4SLinus Torvalds } 26321da177e4SLinus Torvalds 26331da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 26341da177e4SLinus Torvalds { 26351da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 26361da177e4SLinus Torvalds decode_attr_bitmap(xdr, bitmask); 26371da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 26381da177e4SLinus Torvalds } else 26391da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 264044109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 26411da177e4SLinus Torvalds return 0; 26421da177e4SLinus Torvalds } 26431da177e4SLinus Torvalds 26441da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 26451da177e4SLinus Torvalds { 26468687b63aSAl Viro __be32 *p; 2647409924e4STrond Myklebust int ret = 0; 26481da177e4SLinus Torvalds 26491da177e4SLinus Torvalds *type = 0; 26501da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 26511da177e4SLinus Torvalds return -EIO; 26521da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2653c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2654c0eae66eSBenny Halevy if (unlikely(!p)) 2655c0eae66eSBenny Halevy goto out_overflow; 2656cccddf4fSBenny Halevy *type = be32_to_cpup(p); 26571da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 26583110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 26591da177e4SLinus Torvalds return -EIO; 26601da177e4SLinus Torvalds } 26611da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2662409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 26631da177e4SLinus Torvalds } 2664bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2665409924e4STrond Myklebust return ret; 2666c0eae66eSBenny Halevy out_overflow: 2667c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2668c0eae66eSBenny Halevy return -EIO; 26691da177e4SLinus Torvalds } 26701da177e4SLinus Torvalds 26711da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 26721da177e4SLinus Torvalds { 26738687b63aSAl Viro __be32 *p; 2674409924e4STrond Myklebust int ret = 0; 26751da177e4SLinus Torvalds 26761da177e4SLinus Torvalds *change = 0; 26771da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 26781da177e4SLinus Torvalds return -EIO; 26791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2680c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2681c0eae66eSBenny Halevy if (unlikely(!p)) 2682c0eae66eSBenny Halevy goto out_overflow; 2683cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 26841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2685409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 26861da177e4SLinus Torvalds } 26873110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 26881da177e4SLinus Torvalds (unsigned long long)*change); 2689409924e4STrond Myklebust return ret; 2690c0eae66eSBenny Halevy out_overflow: 2691c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2692c0eae66eSBenny Halevy return -EIO; 26931da177e4SLinus Torvalds } 26941da177e4SLinus Torvalds 26951da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 26961da177e4SLinus Torvalds { 26978687b63aSAl Viro __be32 *p; 2698409924e4STrond Myklebust int ret = 0; 26991da177e4SLinus Torvalds 27001da177e4SLinus Torvalds *size = 0; 27011da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 27021da177e4SLinus Torvalds return -EIO; 27031da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2704c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2705c0eae66eSBenny Halevy if (unlikely(!p)) 2706c0eae66eSBenny Halevy goto out_overflow; 2707cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 27081da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2709409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 27101da177e4SLinus Torvalds } 27113110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2712409924e4STrond Myklebust return ret; 2713c0eae66eSBenny Halevy out_overflow: 2714c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2715c0eae66eSBenny Halevy return -EIO; 27161da177e4SLinus Torvalds } 27171da177e4SLinus Torvalds 27181da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27191da177e4SLinus Torvalds { 27208687b63aSAl Viro __be32 *p; 27211da177e4SLinus Torvalds 27221da177e4SLinus Torvalds *res = 0; 27231da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 27241da177e4SLinus Torvalds return -EIO; 27251da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2726c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2727c0eae66eSBenny Halevy if (unlikely(!p)) 2728c0eae66eSBenny Halevy goto out_overflow; 2729cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27301da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 27311da177e4SLinus Torvalds } 27323110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 27331da177e4SLinus Torvalds return 0; 2734c0eae66eSBenny Halevy out_overflow: 2735c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2736c0eae66eSBenny Halevy return -EIO; 27371da177e4SLinus Torvalds } 27381da177e4SLinus Torvalds 27391da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27401da177e4SLinus Torvalds { 27418687b63aSAl Viro __be32 *p; 27421da177e4SLinus Torvalds 27431da177e4SLinus Torvalds *res = 0; 27441da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 27451da177e4SLinus Torvalds return -EIO; 27461da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2747c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2748c0eae66eSBenny Halevy if (unlikely(!p)) 2749c0eae66eSBenny Halevy goto out_overflow; 2750cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27511da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 27521da177e4SLinus Torvalds } 27533110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 27541da177e4SLinus Torvalds return 0; 2755c0eae66eSBenny Halevy out_overflow: 2756c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2757c0eae66eSBenny Halevy return -EIO; 27581da177e4SLinus Torvalds } 27591da177e4SLinus Torvalds 27608b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 27611da177e4SLinus Torvalds { 27628687b63aSAl Viro __be32 *p; 2763409924e4STrond Myklebust int ret = 0; 27641da177e4SLinus Torvalds 27651da177e4SLinus Torvalds fsid->major = 0; 27661da177e4SLinus Torvalds fsid->minor = 0; 27671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 27681da177e4SLinus Torvalds return -EIO; 27691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2770c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2771c0eae66eSBenny Halevy if (unlikely(!p)) 2772c0eae66eSBenny Halevy goto out_overflow; 27733ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2774cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 27751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 2776409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 27771da177e4SLinus Torvalds } 27783110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 27791da177e4SLinus Torvalds (unsigned long long)fsid->major, 27801da177e4SLinus Torvalds (unsigned long long)fsid->minor); 2781409924e4STrond Myklebust return ret; 2782c0eae66eSBenny Halevy out_overflow: 2783c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2784c0eae66eSBenny Halevy return -EIO; 27851da177e4SLinus Torvalds } 27861da177e4SLinus Torvalds 27871da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 27881da177e4SLinus Torvalds { 27898687b63aSAl Viro __be32 *p; 27901da177e4SLinus Torvalds 27911da177e4SLinus Torvalds *res = 60; 27921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 27931da177e4SLinus Torvalds return -EIO; 27941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 2795c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2796c0eae66eSBenny Halevy if (unlikely(!p)) 2797c0eae66eSBenny Halevy goto out_overflow; 2798cccddf4fSBenny Halevy *res = be32_to_cpup(p); 27991da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 28001da177e4SLinus Torvalds } 28013110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 28021da177e4SLinus Torvalds return 0; 2803c0eae66eSBenny Halevy out_overflow: 2804c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2805c0eae66eSBenny Halevy return -EIO; 28061da177e4SLinus Torvalds } 28071da177e4SLinus Torvalds 28081da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 28091da177e4SLinus Torvalds { 28108687b63aSAl Viro __be32 *p; 28111da177e4SLinus Torvalds 28121da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 28131da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 28141da177e4SLinus Torvalds return -EIO; 28151da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 2816c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2817c0eae66eSBenny Halevy if (unlikely(!p)) 2818c0eae66eSBenny Halevy goto out_overflow; 2819cccddf4fSBenny Halevy *res = be32_to_cpup(p); 28201da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 28211da177e4SLinus Torvalds } 28223110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 28231da177e4SLinus Torvalds return 0; 2824c0eae66eSBenny Halevy out_overflow: 2825c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2826c0eae66eSBenny Halevy return -EIO; 28271da177e4SLinus Torvalds } 28281da177e4SLinus Torvalds 28291da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 28301da177e4SLinus Torvalds { 28318687b63aSAl Viro __be32 *p; 2832409924e4STrond Myklebust int ret = 0; 28331da177e4SLinus Torvalds 28341da177e4SLinus Torvalds *fileid = 0; 28351da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 28361da177e4SLinus Torvalds return -EIO; 28371da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 2838c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2839c0eae66eSBenny Halevy if (unlikely(!p)) 2840c0eae66eSBenny Halevy goto out_overflow; 2841cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 28421da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 2843409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 28441da177e4SLinus Torvalds } 28453110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2846409924e4STrond Myklebust return ret; 2847c0eae66eSBenny Halevy out_overflow: 2848c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2849c0eae66eSBenny Halevy return -EIO; 28501da177e4SLinus Torvalds } 28511da177e4SLinus Torvalds 285299baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 285399baf625SManoj Naik { 28548687b63aSAl Viro __be32 *p; 2855409924e4STrond Myklebust int ret = 0; 285699baf625SManoj Naik 285799baf625SManoj Naik *fileid = 0; 285899baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 285999baf625SManoj Naik return -EIO; 286099baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 2861c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2862c0eae66eSBenny Halevy if (unlikely(!p)) 2863c0eae66eSBenny Halevy goto out_overflow; 2864cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 286599baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 2866409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 286799baf625SManoj Naik } 28683110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 2869409924e4STrond Myklebust return ret; 2870c0eae66eSBenny Halevy out_overflow: 2871c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2872c0eae66eSBenny Halevy return -EIO; 287399baf625SManoj Naik } 287499baf625SManoj Naik 28751da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28761da177e4SLinus Torvalds { 28778687b63aSAl Viro __be32 *p; 28781da177e4SLinus Torvalds int status = 0; 28791da177e4SLinus Torvalds 28801da177e4SLinus Torvalds *res = 0; 28811da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 28821da177e4SLinus Torvalds return -EIO; 28831da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 2884c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2885c0eae66eSBenny Halevy if (unlikely(!p)) 2886c0eae66eSBenny Halevy goto out_overflow; 2887cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 28881da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 28891da177e4SLinus Torvalds } 28903110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 28911da177e4SLinus Torvalds return status; 2892c0eae66eSBenny Halevy out_overflow: 2893c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2894c0eae66eSBenny Halevy return -EIO; 28951da177e4SLinus Torvalds } 28961da177e4SLinus Torvalds 28971da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 28981da177e4SLinus Torvalds { 28998687b63aSAl Viro __be32 *p; 29001da177e4SLinus Torvalds int status = 0; 29011da177e4SLinus Torvalds 29021da177e4SLinus Torvalds *res = 0; 29031da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 29041da177e4SLinus Torvalds return -EIO; 29051da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 2906c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2907c0eae66eSBenny Halevy if (unlikely(!p)) 2908c0eae66eSBenny Halevy goto out_overflow; 2909cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 29101da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 29111da177e4SLinus Torvalds } 29123110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 29131da177e4SLinus Torvalds return status; 2914c0eae66eSBenny Halevy out_overflow: 2915c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2916c0eae66eSBenny Halevy return -EIO; 29171da177e4SLinus Torvalds } 29181da177e4SLinus Torvalds 29191da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 29201da177e4SLinus Torvalds { 29218687b63aSAl Viro __be32 *p; 29221da177e4SLinus Torvalds int status = 0; 29231da177e4SLinus Torvalds 29241da177e4SLinus Torvalds *res = 0; 29251da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 29261da177e4SLinus Torvalds return -EIO; 29271da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 2928c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2929c0eae66eSBenny Halevy if (unlikely(!p)) 2930c0eae66eSBenny Halevy goto out_overflow; 2931cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 29321da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 29331da177e4SLinus Torvalds } 29343110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 29351da177e4SLinus Torvalds return status; 2936c0eae66eSBenny Halevy out_overflow: 2937c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2938c0eae66eSBenny Halevy return -EIO; 29391da177e4SLinus Torvalds } 29401da177e4SLinus Torvalds 29417aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 29427aaa0b3bSManoj Naik { 2943464ad6b1SChuck Lever u32 n; 29448687b63aSAl Viro __be32 *p; 29457aaa0b3bSManoj Naik int status = 0; 29467aaa0b3bSManoj Naik 2947c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2948c0eae66eSBenny Halevy if (unlikely(!p)) 2949c0eae66eSBenny Halevy goto out_overflow; 2950cccddf4fSBenny Halevy n = be32_to_cpup(p); 295133a43f28SAndy Adamson if (n == 0) 295233a43f28SAndy Adamson goto root_path; 29537aaa0b3bSManoj Naik dprintk("path "); 29547aaa0b3bSManoj Naik path->ncomponents = 0; 29557aaa0b3bSManoj Naik while (path->ncomponents < n) { 29567aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 29577aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 29587aaa0b3bSManoj Naik if (unlikely(status != 0)) 29597aaa0b3bSManoj Naik goto out_eio; 29607aaa0b3bSManoj Naik if (path->ncomponents != n) 29617aaa0b3bSManoj Naik dprintk("/"); 29627aaa0b3bSManoj Naik dprintk("%s", component->data); 29637aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 29647aaa0b3bSManoj Naik path->ncomponents++; 29657aaa0b3bSManoj Naik else { 29667aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 29677aaa0b3bSManoj Naik goto out_eio; 29687aaa0b3bSManoj Naik } 29697aaa0b3bSManoj Naik } 29707aaa0b3bSManoj Naik out: 29717aaa0b3bSManoj Naik dprintk("\n"); 29727aaa0b3bSManoj Naik return status; 297333a43f28SAndy Adamson root_path: 297433a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 297533a43f28SAndy Adamson path->ncomponents = 1; 297633a43f28SAndy Adamson path->components[0].len=0; 297733a43f28SAndy Adamson path->components[0].data=NULL; 297833a43f28SAndy Adamson dprintk("path /\n"); 297933a43f28SAndy Adamson goto out; 29807aaa0b3bSManoj Naik out_eio: 29817aaa0b3bSManoj Naik dprintk(" status %d", status); 29827aaa0b3bSManoj Naik status = -EIO; 29837aaa0b3bSManoj Naik goto out; 2984c0eae66eSBenny Halevy out_overflow: 2985c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2986c0eae66eSBenny Halevy return -EIO; 29877aaa0b3bSManoj Naik } 29887aaa0b3bSManoj Naik 29897aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 2990683b57b4STrond Myklebust { 2991683b57b4STrond Myklebust int n; 29928687b63aSAl Viro __be32 *p; 2993683b57b4STrond Myklebust int status = -EIO; 2994683b57b4STrond Myklebust 2995683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 2996683b57b4STrond Myklebust goto out; 2997683b57b4STrond Myklebust status = 0; 2998683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 2999683b57b4STrond Myklebust goto out; 30003110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 30017aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3002683b57b4STrond Myklebust if (unlikely(status != 0)) 3003683b57b4STrond Myklebust goto out; 3004c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3005c0eae66eSBenny Halevy if (unlikely(!p)) 3006c0eae66eSBenny Halevy goto out_overflow; 3007cccddf4fSBenny Halevy n = be32_to_cpup(p); 3008683b57b4STrond Myklebust if (n <= 0) 3009683b57b4STrond Myklebust goto out_eio; 3010683b57b4STrond Myklebust res->nlocations = 0; 3011683b57b4STrond Myklebust while (res->nlocations < n) { 3012464ad6b1SChuck Lever u32 m; 30137aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3014683b57b4STrond Myklebust 3015c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3016c0eae66eSBenny Halevy if (unlikely(!p)) 3017c0eae66eSBenny Halevy goto out_overflow; 3018cccddf4fSBenny Halevy m = be32_to_cpup(p); 30197aaa0b3bSManoj Naik 30207aaa0b3bSManoj Naik loc->nservers = 0; 30213110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 30227aaa0b3bSManoj Naik while (loc->nservers < m) { 30237aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 30247aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3025683b57b4STrond Myklebust if (unlikely(status != 0)) 3026683b57b4STrond Myklebust goto out_eio; 30277aaa0b3bSManoj Naik dprintk("%s ", server->data); 30287aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 30297aaa0b3bSManoj Naik loc->nservers++; 30307aaa0b3bSManoj Naik else { 3031464ad6b1SChuck Lever unsigned int i; 3032464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3033464ad6b1SChuck Lever "returned for location %u\n", 30343110ff80SHarvey Harrison __func__, 3035464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3036464ad6b1SChuck Lever m, res->nlocations); 30377aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 30382e42c3e2STrond Myklebust unsigned int len; 30397aaa0b3bSManoj Naik char *data; 30407aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3041683b57b4STrond Myklebust if (unlikely(status != 0)) 3042683b57b4STrond Myklebust goto out_eio; 30437aaa0b3bSManoj Naik } 30447aaa0b3bSManoj Naik } 30457aaa0b3bSManoj Naik } 30467aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 30477aaa0b3bSManoj Naik if (unlikely(status != 0)) 30487aaa0b3bSManoj Naik goto out_eio; 30497aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3050683b57b4STrond Myklebust res->nlocations++; 3051683b57b4STrond Myklebust } 3052409924e4STrond Myklebust if (res->nlocations != 0) 3053409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3054683b57b4STrond Myklebust out: 30553110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3056683b57b4STrond Myklebust return status; 3057c0eae66eSBenny Halevy out_overflow: 3058c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3059683b57b4STrond Myklebust out_eio: 3060683b57b4STrond Myklebust status = -EIO; 3061683b57b4STrond Myklebust goto out; 3062683b57b4STrond Myklebust } 3063683b57b4STrond Myklebust 30641da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 30651da177e4SLinus Torvalds { 30668687b63aSAl Viro __be32 *p; 30671da177e4SLinus Torvalds int status = 0; 30681da177e4SLinus Torvalds 30691da177e4SLinus Torvalds *res = 0; 30701da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 30711da177e4SLinus Torvalds return -EIO; 30721da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3073c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3074c0eae66eSBenny Halevy if (unlikely(!p)) 3075c0eae66eSBenny Halevy goto out_overflow; 3076cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 30771da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 30781da177e4SLinus Torvalds } 30793110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 30801da177e4SLinus Torvalds return status; 3081c0eae66eSBenny Halevy out_overflow: 3082c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3083c0eae66eSBenny Halevy return -EIO; 30841da177e4SLinus Torvalds } 30851da177e4SLinus Torvalds 30861da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 30871da177e4SLinus Torvalds { 30888687b63aSAl Viro __be32 *p; 30891da177e4SLinus Torvalds int status = 0; 30901da177e4SLinus Torvalds 30911da177e4SLinus Torvalds *maxlink = 1; 30921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 30931da177e4SLinus Torvalds return -EIO; 30941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3095c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3096c0eae66eSBenny Halevy if (unlikely(!p)) 3097c0eae66eSBenny Halevy goto out_overflow; 3098cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 30991da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 31001da177e4SLinus Torvalds } 31013110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 31021da177e4SLinus Torvalds return status; 3103c0eae66eSBenny Halevy out_overflow: 3104c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3105c0eae66eSBenny Halevy return -EIO; 31061da177e4SLinus Torvalds } 31071da177e4SLinus Torvalds 31081da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 31091da177e4SLinus Torvalds { 31108687b63aSAl Viro __be32 *p; 31111da177e4SLinus Torvalds int status = 0; 31121da177e4SLinus Torvalds 31131da177e4SLinus Torvalds *maxname = 1024; 31141da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 31151da177e4SLinus Torvalds return -EIO; 31161da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3117c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3118c0eae66eSBenny Halevy if (unlikely(!p)) 3119c0eae66eSBenny Halevy goto out_overflow; 3120cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 31211da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 31221da177e4SLinus Torvalds } 31233110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 31241da177e4SLinus Torvalds return status; 3125c0eae66eSBenny Halevy out_overflow: 3126c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3127c0eae66eSBenny Halevy return -EIO; 31281da177e4SLinus Torvalds } 31291da177e4SLinus Torvalds 31301da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 31311da177e4SLinus Torvalds { 31328687b63aSAl Viro __be32 *p; 31331da177e4SLinus Torvalds int status = 0; 31341da177e4SLinus Torvalds 31351da177e4SLinus Torvalds *res = 1024; 31361da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 31371da177e4SLinus Torvalds return -EIO; 31381da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 31391da177e4SLinus Torvalds uint64_t maxread; 3140c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3141c0eae66eSBenny Halevy if (unlikely(!p)) 3142c0eae66eSBenny Halevy goto out_overflow; 3143cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 31441da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 31451da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 31461da177e4SLinus Torvalds *res = (uint32_t)maxread; 31471da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 31481da177e4SLinus Torvalds } 31493110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 31501da177e4SLinus Torvalds return status; 3151c0eae66eSBenny Halevy out_overflow: 3152c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3153c0eae66eSBenny Halevy return -EIO; 31541da177e4SLinus Torvalds } 31551da177e4SLinus Torvalds 31561da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 31571da177e4SLinus Torvalds { 31588687b63aSAl Viro __be32 *p; 31591da177e4SLinus Torvalds int status = 0; 31601da177e4SLinus Torvalds 31611da177e4SLinus Torvalds *res = 1024; 31621da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 31631da177e4SLinus Torvalds return -EIO; 31641da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 31651da177e4SLinus Torvalds uint64_t maxwrite; 3166c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3167c0eae66eSBenny Halevy if (unlikely(!p)) 3168c0eae66eSBenny Halevy goto out_overflow; 3169cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 31701da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 31711da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 31721da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 31731da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 31741da177e4SLinus Torvalds } 31753110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 31761da177e4SLinus Torvalds return status; 3177c0eae66eSBenny Halevy out_overflow: 3178c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3179c0eae66eSBenny Halevy return -EIO; 31801da177e4SLinus Torvalds } 31811da177e4SLinus Torvalds 3182bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 31831da177e4SLinus Torvalds { 3184bca79478STrond Myklebust uint32_t tmp; 31858687b63aSAl Viro __be32 *p; 3186409924e4STrond Myklebust int ret = 0; 31871da177e4SLinus Torvalds 31881da177e4SLinus Torvalds *mode = 0; 31891da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 31901da177e4SLinus Torvalds return -EIO; 31911da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3192c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3193c0eae66eSBenny Halevy if (unlikely(!p)) 3194c0eae66eSBenny Halevy goto out_overflow; 3195cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3196bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 31971da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3198409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 31991da177e4SLinus Torvalds } 32003110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3201409924e4STrond Myklebust return ret; 3202c0eae66eSBenny Halevy out_overflow: 3203c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3204c0eae66eSBenny Halevy return -EIO; 32051da177e4SLinus Torvalds } 32061da177e4SLinus Torvalds 32071da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 32081da177e4SLinus Torvalds { 32098687b63aSAl Viro __be32 *p; 3210409924e4STrond Myklebust int ret = 0; 32111da177e4SLinus Torvalds 32121da177e4SLinus Torvalds *nlink = 1; 32131da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 32141da177e4SLinus Torvalds return -EIO; 32151da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3216c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3217c0eae66eSBenny Halevy if (unlikely(!p)) 3218c0eae66eSBenny Halevy goto out_overflow; 3219cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 32201da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3221409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 32221da177e4SLinus Torvalds } 32233110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3224409924e4STrond Myklebust return ret; 3225c0eae66eSBenny Halevy out_overflow: 3226c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3227c0eae66eSBenny Halevy return -EIO; 32281da177e4SLinus Torvalds } 32291da177e4SLinus Torvalds 323080e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 323180e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *uid, int may_sleep) 32321da177e4SLinus Torvalds { 32338687b63aSAl Viro uint32_t len; 32348687b63aSAl Viro __be32 *p; 3235409924e4STrond Myklebust int ret = 0; 32361da177e4SLinus Torvalds 32371da177e4SLinus Torvalds *uid = -2; 32381da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 32391da177e4SLinus Torvalds return -EIO; 32401da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3241c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3242c0eae66eSBenny Halevy if (unlikely(!p)) 3243c0eae66eSBenny Halevy goto out_overflow; 3244cccddf4fSBenny Halevy len = be32_to_cpup(p); 3245c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3246c0eae66eSBenny Halevy if (unlikely(!p)) 3247c0eae66eSBenny Halevy goto out_overflow; 324880e52aceSTrond Myklebust if (!may_sleep) { 324980e52aceSTrond Myklebust /* do nothing */ 325080e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3251409924e4STrond Myklebust if (nfs_map_name_to_uid(clp, (char *)p, len, uid) == 0) 3252409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3253409924e4STrond Myklebust else 32541da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 32553110ff80SHarvey Harrison __func__); 32561da177e4SLinus Torvalds } else 3257fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 32583110ff80SHarvey Harrison __func__, len); 32591da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 32601da177e4SLinus Torvalds } 32613110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3262409924e4STrond Myklebust return ret; 3263c0eae66eSBenny Halevy out_overflow: 3264c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3265c0eae66eSBenny Halevy return -EIO; 32661da177e4SLinus Torvalds } 32671da177e4SLinus Torvalds 326880e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 326980e52aceSTrond Myklebust struct nfs_client *clp, uint32_t *gid, int may_sleep) 32701da177e4SLinus Torvalds { 32718687b63aSAl Viro uint32_t len; 32728687b63aSAl Viro __be32 *p; 3273409924e4STrond Myklebust int ret = 0; 32741da177e4SLinus Torvalds 32751da177e4SLinus Torvalds *gid = -2; 32761da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 32771da177e4SLinus Torvalds return -EIO; 32781da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3279c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3280c0eae66eSBenny Halevy if (unlikely(!p)) 3281c0eae66eSBenny Halevy goto out_overflow; 3282cccddf4fSBenny Halevy len = be32_to_cpup(p); 3283c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3284c0eae66eSBenny Halevy if (unlikely(!p)) 3285c0eae66eSBenny Halevy goto out_overflow; 328680e52aceSTrond Myklebust if (!may_sleep) { 328780e52aceSTrond Myklebust /* do nothing */ 328880e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3289409924e4STrond Myklebust if (nfs_map_group_to_gid(clp, (char *)p, len, gid) == 0) 3290409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3291409924e4STrond Myklebust else 32921da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 32933110ff80SHarvey Harrison __func__); 32941da177e4SLinus Torvalds } else 3295fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 32963110ff80SHarvey Harrison __func__, len); 32971da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 32981da177e4SLinus Torvalds } 32993110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3300409924e4STrond Myklebust return ret; 3301c0eae66eSBenny Halevy out_overflow: 3302c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3303c0eae66eSBenny Halevy return -EIO; 33041da177e4SLinus Torvalds } 33051da177e4SLinus Torvalds 33061da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 33071da177e4SLinus Torvalds { 33088687b63aSAl Viro uint32_t major = 0, minor = 0; 33098687b63aSAl Viro __be32 *p; 3310409924e4STrond Myklebust int ret = 0; 33111da177e4SLinus Torvalds 33121da177e4SLinus Torvalds *rdev = MKDEV(0,0); 33131da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 33141da177e4SLinus Torvalds return -EIO; 33151da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 33161da177e4SLinus Torvalds dev_t tmp; 33171da177e4SLinus Torvalds 3318c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3319c0eae66eSBenny Halevy if (unlikely(!p)) 3320c0eae66eSBenny Halevy goto out_overflow; 33216f723f77SBenny Halevy major = be32_to_cpup(p++); 3322cccddf4fSBenny Halevy minor = be32_to_cpup(p); 33231da177e4SLinus Torvalds tmp = MKDEV(major, minor); 33241da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 33251da177e4SLinus Torvalds *rdev = tmp; 33261da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3327409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 33281da177e4SLinus Torvalds } 33293110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3330409924e4STrond Myklebust return ret; 3331c0eae66eSBenny Halevy out_overflow: 3332c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3333c0eae66eSBenny Halevy return -EIO; 33341da177e4SLinus Torvalds } 33351da177e4SLinus Torvalds 33361da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 33371da177e4SLinus Torvalds { 33388687b63aSAl Viro __be32 *p; 33391da177e4SLinus Torvalds int status = 0; 33401da177e4SLinus Torvalds 33411da177e4SLinus Torvalds *res = 0; 33421da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 33431da177e4SLinus Torvalds return -EIO; 33441da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3345c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3346c0eae66eSBenny Halevy if (unlikely(!p)) 3347c0eae66eSBenny Halevy goto out_overflow; 3348cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 33491da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 33501da177e4SLinus Torvalds } 33513110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 33521da177e4SLinus Torvalds return status; 3353c0eae66eSBenny Halevy out_overflow: 3354c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3355c0eae66eSBenny Halevy return -EIO; 33561da177e4SLinus Torvalds } 33571da177e4SLinus Torvalds 33581da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 33591da177e4SLinus Torvalds { 33608687b63aSAl Viro __be32 *p; 33611da177e4SLinus Torvalds int status = 0; 33621da177e4SLinus Torvalds 33631da177e4SLinus Torvalds *res = 0; 33641da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 33651da177e4SLinus Torvalds return -EIO; 33661da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3367c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3368c0eae66eSBenny Halevy if (unlikely(!p)) 3369c0eae66eSBenny Halevy goto out_overflow; 3370cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 33711da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 33721da177e4SLinus Torvalds } 33733110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 33741da177e4SLinus Torvalds return status; 3375c0eae66eSBenny Halevy out_overflow: 3376c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3377c0eae66eSBenny Halevy return -EIO; 33781da177e4SLinus Torvalds } 33791da177e4SLinus Torvalds 33801da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 33811da177e4SLinus Torvalds { 33828687b63aSAl Viro __be32 *p; 33831da177e4SLinus Torvalds int status = 0; 33841da177e4SLinus Torvalds 33851da177e4SLinus Torvalds *res = 0; 33861da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 33871da177e4SLinus Torvalds return -EIO; 33881da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3389c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3390c0eae66eSBenny Halevy if (unlikely(!p)) 3391c0eae66eSBenny Halevy goto out_overflow; 3392cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 33931da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 33941da177e4SLinus Torvalds } 33953110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 33961da177e4SLinus Torvalds return status; 3397c0eae66eSBenny Halevy out_overflow: 3398c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3399c0eae66eSBenny Halevy return -EIO; 34001da177e4SLinus Torvalds } 34011da177e4SLinus Torvalds 34021da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 34031da177e4SLinus Torvalds { 34048687b63aSAl Viro __be32 *p; 3405409924e4STrond Myklebust int ret = 0; 34061da177e4SLinus Torvalds 34071da177e4SLinus Torvalds *used = 0; 34081da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 34091da177e4SLinus Torvalds return -EIO; 34101da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3411c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3412c0eae66eSBenny Halevy if (unlikely(!p)) 3413c0eae66eSBenny Halevy goto out_overflow; 3414cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 34151da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3416409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 34171da177e4SLinus Torvalds } 34183110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 34191da177e4SLinus Torvalds (unsigned long long)*used); 3420409924e4STrond Myklebust return ret; 3421c0eae66eSBenny Halevy out_overflow: 3422c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3423c0eae66eSBenny Halevy return -EIO; 34241da177e4SLinus Torvalds } 34251da177e4SLinus Torvalds 34261da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 34271da177e4SLinus Torvalds { 34288687b63aSAl Viro __be32 *p; 34291da177e4SLinus Torvalds uint64_t sec; 34301da177e4SLinus Torvalds uint32_t nsec; 34311da177e4SLinus Torvalds 3432c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3433c0eae66eSBenny Halevy if (unlikely(!p)) 3434c0eae66eSBenny Halevy goto out_overflow; 34353ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3436cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 34371da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 34381da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 34391da177e4SLinus Torvalds return 0; 3440c0eae66eSBenny Halevy out_overflow: 3441c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3442c0eae66eSBenny Halevy return -EIO; 34431da177e4SLinus Torvalds } 34441da177e4SLinus Torvalds 34451da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 34461da177e4SLinus Torvalds { 34471da177e4SLinus Torvalds int status = 0; 34481da177e4SLinus Torvalds 34491da177e4SLinus Torvalds time->tv_sec = 0; 34501da177e4SLinus Torvalds time->tv_nsec = 0; 34511da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 34521da177e4SLinus Torvalds return -EIO; 34531da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 34541da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3455409924e4STrond Myklebust if (status == 0) 3456409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 34571da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 34581da177e4SLinus Torvalds } 34593110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 34601da177e4SLinus Torvalds return status; 34611da177e4SLinus Torvalds } 34621da177e4SLinus Torvalds 34631da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 34641da177e4SLinus Torvalds { 34651da177e4SLinus Torvalds int status = 0; 34661da177e4SLinus Torvalds 34671da177e4SLinus Torvalds time->tv_sec = 0; 34681da177e4SLinus Torvalds time->tv_nsec = 0; 34691da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 34701da177e4SLinus Torvalds return -EIO; 34711da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 34721da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3473409924e4STrond Myklebust if (status == 0) 3474409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 34751da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 34761da177e4SLinus Torvalds } 34773110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 34781da177e4SLinus Torvalds return status; 34791da177e4SLinus Torvalds } 34801da177e4SLinus Torvalds 34811da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 34821da177e4SLinus Torvalds { 34831da177e4SLinus Torvalds int status = 0; 34841da177e4SLinus Torvalds 34851da177e4SLinus Torvalds time->tv_sec = 0; 34861da177e4SLinus Torvalds time->tv_nsec = 0; 34871da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 34881da177e4SLinus Torvalds return -EIO; 34891da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 34901da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3491409924e4STrond Myklebust if (status == 0) 3492409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 34931da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 34941da177e4SLinus Torvalds } 34953110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 34961da177e4SLinus Torvalds return status; 34971da177e4SLinus Torvalds } 34981da177e4SLinus Torvalds 34998687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 35001da177e4SLinus Torvalds { 35011da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 35021da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 35031da177e4SLinus Torvalds 35041da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3505fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3506fe82a183SChuck Lever "%u %c %u\n", 35073110ff80SHarvey Harrison __func__, 35081da177e4SLinus Torvalds attrwords << 2, 35091da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 35101da177e4SLinus Torvalds nwords << 2); 35111da177e4SLinus Torvalds return -EIO; 35121da177e4SLinus Torvalds } 35131da177e4SLinus Torvalds return 0; 35141da177e4SLinus Torvalds } 35151da177e4SLinus Torvalds 35161da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 35171da177e4SLinus Torvalds { 35188687b63aSAl Viro __be32 *p; 35191da177e4SLinus Torvalds 3520c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3521c0eae66eSBenny Halevy if (unlikely(!p)) 3522c0eae66eSBenny Halevy goto out_overflow; 35236f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 35243ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3525cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 35261da177e4SLinus Torvalds return 0; 3527c0eae66eSBenny Halevy out_overflow: 3528c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3529c0eae66eSBenny Halevy return -EIO; 35301da177e4SLinus Torvalds } 35311da177e4SLinus Torvalds 35321da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 35331da177e4SLinus Torvalds { 35348687b63aSAl Viro __be32 *p; 35351da177e4SLinus Torvalds uint32_t supp, acc; 35361da177e4SLinus Torvalds int status; 35371da177e4SLinus Torvalds 35381da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 35391da177e4SLinus Torvalds if (status) 35401da177e4SLinus Torvalds return status; 3541c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3542c0eae66eSBenny Halevy if (unlikely(!p)) 3543c0eae66eSBenny Halevy goto out_overflow; 35446f723f77SBenny Halevy supp = be32_to_cpup(p++); 3545cccddf4fSBenny Halevy acc = be32_to_cpup(p); 35461da177e4SLinus Torvalds access->supported = supp; 35471da177e4SLinus Torvalds access->access = acc; 35481da177e4SLinus Torvalds return 0; 3549c0eae66eSBenny Halevy out_overflow: 3550c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3551c0eae66eSBenny Halevy return -EIO; 35521da177e4SLinus Torvalds } 35531da177e4SLinus Torvalds 355407d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 35551da177e4SLinus Torvalds { 35568687b63aSAl Viro __be32 *p; 355707d30434SBenny Halevy 355807d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 355907d30434SBenny Halevy if (likely(p)) { 356007d30434SBenny Halevy memcpy(buf, p, len); 356107d30434SBenny Halevy return 0; 356207d30434SBenny Halevy } 356307d30434SBenny Halevy print_overflow_msg(__func__, xdr); 356407d30434SBenny Halevy return -EIO; 356507d30434SBenny Halevy } 356607d30434SBenny Halevy 356707d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 356807d30434SBenny Halevy { 356907d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 35701da177e4SLinus Torvalds } 35711da177e4SLinus Torvalds 35721da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 35731da177e4SLinus Torvalds { 35741da177e4SLinus Torvalds int status; 35751da177e4SLinus Torvalds 35761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3577c1d51931STrond Myklebust if (status != -EIO) 3578c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 357907d30434SBenny Halevy if (!status) 358007d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 35811da177e4SLinus Torvalds return status; 35821da177e4SLinus Torvalds } 35831da177e4SLinus Torvalds 3584db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3585db942bbdSBenny Halevy { 3586db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 35871da177e4SLinus Torvalds } 35881da177e4SLinus Torvalds 35891da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 35901da177e4SLinus Torvalds { 35911da177e4SLinus Torvalds int status; 35921da177e4SLinus Torvalds 35931da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3594db942bbdSBenny Halevy if (!status) 3595db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 35961da177e4SLinus Torvalds return status; 35971da177e4SLinus Torvalds } 35981da177e4SLinus Torvalds 35991da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 36001da177e4SLinus Torvalds { 36018687b63aSAl Viro __be32 *p; 36021da177e4SLinus Torvalds uint32_t bmlen; 36031da177e4SLinus Torvalds int status; 36041da177e4SLinus Torvalds 36051da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 36061da177e4SLinus Torvalds if (status) 36071da177e4SLinus Torvalds return status; 36081da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 36091da177e4SLinus Torvalds return status; 3610c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3611c0eae66eSBenny Halevy if (unlikely(!p)) 3612c0eae66eSBenny Halevy goto out_overflow; 3613cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3614c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3615c0eae66eSBenny Halevy if (likely(p)) 36161da177e4SLinus Torvalds return 0; 3617c0eae66eSBenny Halevy out_overflow: 3618c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3619c0eae66eSBenny Halevy return -EIO; 36201da177e4SLinus Torvalds } 36211da177e4SLinus Torvalds 36221da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 36231da177e4SLinus Torvalds { 36248687b63aSAl Viro __be32 *savep; 36256c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 36261da177e4SLinus Torvalds int status; 36271da177e4SLinus Torvalds 36281da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 36291da177e4SLinus Torvalds goto xdr_error; 36301da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 36311da177e4SLinus Torvalds goto xdr_error; 36321da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 36331da177e4SLinus Torvalds goto xdr_error; 36341da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 36351da177e4SLinus Torvalds goto xdr_error; 36361da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 36371da177e4SLinus Torvalds goto xdr_error; 36381da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 36391da177e4SLinus Torvalds goto xdr_error; 36401da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 36411da177e4SLinus Torvalds goto xdr_error; 36421da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36431da177e4SLinus Torvalds xdr_error: 36443110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 36451da177e4SLinus Torvalds return status; 36461da177e4SLinus Torvalds } 36471da177e4SLinus Torvalds 36481da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 36491da177e4SLinus Torvalds { 36508687b63aSAl Viro __be32 *savep; 36516c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 36521da177e4SLinus Torvalds int status; 36531da177e4SLinus Torvalds 36541da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 36551da177e4SLinus Torvalds goto xdr_error; 36561da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 36571da177e4SLinus Torvalds goto xdr_error; 36581da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 36591da177e4SLinus Torvalds goto xdr_error; 36601da177e4SLinus Torvalds 36611da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 36621da177e4SLinus Torvalds goto xdr_error; 36631da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 36641da177e4SLinus Torvalds goto xdr_error; 36651da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 36661da177e4SLinus Torvalds goto xdr_error; 36671da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 36681da177e4SLinus Torvalds goto xdr_error; 36691da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 36701da177e4SLinus Torvalds goto xdr_error; 36711da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 36721da177e4SLinus Torvalds goto xdr_error; 36731da177e4SLinus Torvalds 36741da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36751da177e4SLinus Torvalds xdr_error: 36763110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 36771da177e4SLinus Torvalds return status; 36781da177e4SLinus Torvalds } 36791da177e4SLinus Torvalds 36801da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 36811da177e4SLinus Torvalds { 36828687b63aSAl Viro __be32 *savep; 36836c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 36841da177e4SLinus Torvalds int status; 36851da177e4SLinus Torvalds 36861da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 36871da177e4SLinus Torvalds goto xdr_error; 36881da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 36891da177e4SLinus Torvalds goto xdr_error; 36901da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 36911da177e4SLinus Torvalds goto xdr_error; 36921da177e4SLinus Torvalds 36931da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 36941da177e4SLinus Torvalds goto xdr_error; 36951da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 36961da177e4SLinus Torvalds goto xdr_error; 36971da177e4SLinus Torvalds 36981da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 36991da177e4SLinus Torvalds xdr_error: 37003110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 37011da177e4SLinus Torvalds return status; 37021da177e4SLinus Torvalds } 37031da177e4SLinus Torvalds 370480e52aceSTrond Myklebust static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 370580e52aceSTrond Myklebust const struct nfs_server *server, int may_sleep) 37061da177e4SLinus Torvalds { 37078687b63aSAl Viro __be32 *savep; 37081da177e4SLinus Torvalds uint32_t attrlen, 37091da177e4SLinus Torvalds bitmap[2] = {0}, 37101da177e4SLinus Torvalds type; 3711bca79478STrond Myklebust int status; 3712bca79478STrond Myklebust umode_t fmode = 0; 371399baf625SManoj Naik uint64_t fileid; 37141da177e4SLinus Torvalds 3715f26c7a78STrond Myklebust status = decode_op_hdr(xdr, OP_GETATTR); 3716f26c7a78STrond Myklebust if (status < 0) 37171da177e4SLinus Torvalds goto xdr_error; 37181da177e4SLinus Torvalds 3719f26c7a78STrond Myklebust status = decode_attr_bitmap(xdr, bitmap); 3720f26c7a78STrond Myklebust if (status < 0) 3721f26c7a78STrond Myklebust goto xdr_error; 3722f26c7a78STrond Myklebust 3723f26c7a78STrond Myklebust status = decode_attr_length(xdr, &attrlen, &savep); 3724f26c7a78STrond Myklebust if (status < 0) 37251da177e4SLinus Torvalds goto xdr_error; 37261da177e4SLinus Torvalds 37271da177e4SLinus Torvalds 3728f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 3729f26c7a78STrond Myklebust if (status < 0) 37301da177e4SLinus Torvalds goto xdr_error; 3731409924e4STrond Myklebust fattr->mode = 0; 3732409924e4STrond Myklebust if (status != 0) { 3733409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 3734409924e4STrond Myklebust fattr->valid |= status; 3735409924e4STrond Myklebust } 37361da177e4SLinus Torvalds 3737f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 3738f26c7a78STrond Myklebust if (status < 0) 37391da177e4SLinus Torvalds goto xdr_error; 3740409924e4STrond Myklebust fattr->valid |= status; 3741f26c7a78STrond Myklebust 3742f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 3743f26c7a78STrond Myklebust if (status < 0) 37441da177e4SLinus Torvalds goto xdr_error; 3745409924e4STrond Myklebust fattr->valid |= status; 3746f26c7a78STrond Myklebust 3747f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 3748f26c7a78STrond Myklebust if (status < 0) 37491da177e4SLinus Torvalds goto xdr_error; 3750409924e4STrond Myklebust fattr->valid |= status; 3751f26c7a78STrond Myklebust 3752f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 3753f26c7a78STrond Myklebust if (status < 0) 37541da177e4SLinus Torvalds goto xdr_error; 3755409924e4STrond Myklebust fattr->valid |= status; 3756f26c7a78STrond Myklebust 3757f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 37587aaa0b3bSManoj Naik struct nfs4_fs_locations, 3759f26c7a78STrond Myklebust fattr)); 3760f26c7a78STrond Myklebust if (status < 0) 3761683b57b4STrond Myklebust goto xdr_error; 3762409924e4STrond Myklebust fattr->valid |= status; 3763f26c7a78STrond Myklebust 3764f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 3765f26c7a78STrond Myklebust if (status < 0) 37661da177e4SLinus Torvalds goto xdr_error; 3767409924e4STrond Myklebust if (status != 0) { 37681da177e4SLinus Torvalds fattr->mode |= fmode; 3769409924e4STrond Myklebust fattr->valid |= status; 3770409924e4STrond Myklebust } 3771f26c7a78STrond Myklebust 3772f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 3773f26c7a78STrond Myklebust if (status < 0) 37741da177e4SLinus Torvalds goto xdr_error; 3775409924e4STrond Myklebust fattr->valid |= status; 3776f26c7a78STrond Myklebust 377780e52aceSTrond Myklebust status = decode_attr_owner(xdr, bitmap, server->nfs_client, 377880e52aceSTrond Myklebust &fattr->uid, may_sleep); 3779f26c7a78STrond Myklebust if (status < 0) 37801da177e4SLinus Torvalds goto xdr_error; 3781409924e4STrond Myklebust fattr->valid |= status; 3782f26c7a78STrond Myklebust 378380e52aceSTrond Myklebust status = decode_attr_group(xdr, bitmap, server->nfs_client, 378480e52aceSTrond Myklebust &fattr->gid, may_sleep); 3785f26c7a78STrond Myklebust if (status < 0) 37861da177e4SLinus Torvalds goto xdr_error; 3787409924e4STrond Myklebust fattr->valid |= status; 3788f26c7a78STrond Myklebust 3789f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 3790f26c7a78STrond Myklebust if (status < 0) 37911da177e4SLinus Torvalds goto xdr_error; 3792409924e4STrond Myklebust fattr->valid |= status; 3793f26c7a78STrond Myklebust 3794f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 3795f26c7a78STrond Myklebust if (status < 0) 37961da177e4SLinus Torvalds goto xdr_error; 3797409924e4STrond Myklebust fattr->valid |= status; 3798f26c7a78STrond Myklebust 3799f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 3800f26c7a78STrond Myklebust if (status < 0) 38011da177e4SLinus Torvalds goto xdr_error; 3802409924e4STrond Myklebust fattr->valid |= status; 3803f26c7a78STrond Myklebust 3804f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 3805f26c7a78STrond Myklebust if (status < 0) 38061da177e4SLinus Torvalds goto xdr_error; 3807409924e4STrond Myklebust fattr->valid |= status; 3808f26c7a78STrond Myklebust 3809f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 3810f26c7a78STrond Myklebust if (status < 0) 38111da177e4SLinus Torvalds goto xdr_error; 3812409924e4STrond Myklebust fattr->valid |= status; 3813f26c7a78STrond Myklebust 3814f26c7a78STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fileid); 3815f26c7a78STrond Myklebust if (status < 0) 381699baf625SManoj Naik goto xdr_error; 3817409924e4STrond Myklebust if (status != 0 && !(fattr->valid & status)) { 381899baf625SManoj Naik fattr->fileid = fileid; 3819409924e4STrond Myklebust fattr->valid |= status; 3820409924e4STrond Myklebust } 3821f26c7a78STrond Myklebust 3822f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 38231da177e4SLinus Torvalds xdr_error: 38243110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 38251da177e4SLinus Torvalds return status; 38261da177e4SLinus Torvalds } 38271da177e4SLinus Torvalds 38281da177e4SLinus Torvalds 38291da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 38301da177e4SLinus Torvalds { 38318687b63aSAl Viro __be32 *savep; 38321da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 38331da177e4SLinus Torvalds int status; 38341da177e4SLinus Torvalds 38351da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 38361da177e4SLinus Torvalds goto xdr_error; 38371da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 38381da177e4SLinus Torvalds goto xdr_error; 38391da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 38401da177e4SLinus Torvalds goto xdr_error; 38411da177e4SLinus Torvalds 38421da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 38431da177e4SLinus Torvalds 38441da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 38451da177e4SLinus Torvalds goto xdr_error; 38461da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 38471da177e4SLinus Torvalds goto xdr_error; 38481da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 38491da177e4SLinus Torvalds goto xdr_error; 38501da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 38511da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 38521da177e4SLinus Torvalds goto xdr_error; 38531da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 38541da177e4SLinus Torvalds 38551da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 38561da177e4SLinus Torvalds xdr_error: 38573110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 38581da177e4SLinus Torvalds return status; 38591da177e4SLinus Torvalds } 38601da177e4SLinus Torvalds 38611da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 38621da177e4SLinus Torvalds { 38638687b63aSAl Viro __be32 *p; 38641da177e4SLinus Torvalds uint32_t len; 38651da177e4SLinus Torvalds int status; 38661da177e4SLinus Torvalds 38679936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 38689936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 38699936781dSTrond Myklebust 38701da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 38711da177e4SLinus Torvalds if (status) 38721da177e4SLinus Torvalds return status; 38731da177e4SLinus Torvalds 3874c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3875c0eae66eSBenny Halevy if (unlikely(!p)) 3876c0eae66eSBenny Halevy goto out_overflow; 3877cccddf4fSBenny Halevy len = be32_to_cpup(p); 38781da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 38791da177e4SLinus Torvalds return -EIO; 38801da177e4SLinus Torvalds fh->size = len; 3881c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3882c0eae66eSBenny Halevy if (unlikely(!p)) 3883c0eae66eSBenny Halevy goto out_overflow; 388499398d06SBenny Halevy memcpy(fh->data, p, len); 38851da177e4SLinus Torvalds return 0; 3886c0eae66eSBenny Halevy out_overflow: 3887c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3888c0eae66eSBenny Halevy return -EIO; 38891da177e4SLinus Torvalds } 38901da177e4SLinus Torvalds 38911da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 38921da177e4SLinus Torvalds { 38931da177e4SLinus Torvalds int status; 38941da177e4SLinus Torvalds 38951da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 38961da177e4SLinus Torvalds if (status) 38971da177e4SLinus Torvalds return status; 38981da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 38991da177e4SLinus Torvalds } 39001da177e4SLinus Torvalds 39011da177e4SLinus Torvalds /* 39021da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 39031da177e4SLinus Torvalds */ 3904911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 39051da177e4SLinus Torvalds { 3906911d1aafSTrond Myklebust uint64_t offset, length, clientid; 39078687b63aSAl Viro __be32 *p; 3908911d1aafSTrond Myklebust uint32_t namelen, type; 39091da177e4SLinus Torvalds 3910c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 32); 3911c0eae66eSBenny Halevy if (unlikely(!p)) 3912c0eae66eSBenny Halevy goto out_overflow; 39133ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &offset); 39143ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 39156f723f77SBenny Halevy type = be32_to_cpup(p++); 3916911d1aafSTrond Myklebust if (fl != NULL) { 3917911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 3918911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 3919911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 3920911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 3921911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 3922911d1aafSTrond Myklebust if (type & 1) 3923911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 3924911d1aafSTrond Myklebust fl->fl_pid = 0; 3925911d1aafSTrond Myklebust } 39263ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &clientid); 3927cccddf4fSBenny Halevy namelen = be32_to_cpup(p); 3928c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, namelen); 3929c0eae66eSBenny Halevy if (likely(p)) 39301da177e4SLinus Torvalds return -NFS4ERR_DENIED; 3931c0eae66eSBenny Halevy out_overflow: 3932c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3933c0eae66eSBenny Halevy return -EIO; 39341da177e4SLinus Torvalds } 39351da177e4SLinus Torvalds 3936911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 39371da177e4SLinus Torvalds { 39381da177e4SLinus Torvalds int status; 39391da177e4SLinus Torvalds 39401da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 3941c1d51931STrond Myklebust if (status == -EIO) 3942c1d51931STrond Myklebust goto out; 39431da177e4SLinus Torvalds if (status == 0) { 394407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 394507d30434SBenny Halevy if (unlikely(status)) 394607d30434SBenny Halevy goto out; 39471da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 3948c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 3949c1d51931STrond Myklebust if (res->open_seqid != NULL) 3950c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 3951c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 3952c1d51931STrond Myklebust out: 39531da177e4SLinus Torvalds return status; 39541da177e4SLinus Torvalds } 39551da177e4SLinus Torvalds 3956911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 39571da177e4SLinus Torvalds { 39581da177e4SLinus Torvalds int status; 39591da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 39601da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 3961911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 39621da177e4SLinus Torvalds return status; 39631da177e4SLinus Torvalds } 39641da177e4SLinus Torvalds 3965911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 39661da177e4SLinus Torvalds { 39671da177e4SLinus Torvalds int status; 39681da177e4SLinus Torvalds 39691da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 3970c1d51931STrond Myklebust if (status != -EIO) 3971c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 397207d30434SBenny Halevy if (status == 0) 397307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 39741da177e4SLinus Torvalds return status; 39751da177e4SLinus Torvalds } 39761da177e4SLinus Torvalds 39771da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 39781da177e4SLinus Torvalds { 39791da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 39801da177e4SLinus Torvalds } 39811da177e4SLinus Torvalds 39821da177e4SLinus Torvalds /* This is too sick! */ 39831da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 39841da177e4SLinus Torvalds { 39858687b63aSAl Viro __be32 *p; 39861da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 39871da177e4SLinus Torvalds 3988c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3989c0eae66eSBenny Halevy if (unlikely(!p)) 3990c0eae66eSBenny Halevy goto out_overflow; 39916f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 39921da177e4SLinus Torvalds switch (limit_type) { 39931da177e4SLinus Torvalds case 1: 3994cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 39951da177e4SLinus Torvalds break; 39961da177e4SLinus Torvalds case 2: 39976f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 3998cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 39991da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 40001da177e4SLinus Torvalds } 40011da177e4SLinus Torvalds return 0; 4002c0eae66eSBenny Halevy out_overflow: 4003c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4004c0eae66eSBenny Halevy return -EIO; 40051da177e4SLinus Torvalds } 40061da177e4SLinus Torvalds 40071da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 40081da177e4SLinus Torvalds { 40098687b63aSAl Viro __be32 *p; 40101da177e4SLinus Torvalds uint32_t delegation_type; 401107d30434SBenny Halevy int status; 40121da177e4SLinus Torvalds 4013c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4014c0eae66eSBenny Halevy if (unlikely(!p)) 4015c0eae66eSBenny Halevy goto out_overflow; 4016cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 40171da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 40181da177e4SLinus Torvalds res->delegation_type = 0; 40191da177e4SLinus Torvalds return 0; 40201da177e4SLinus Torvalds } 402107d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 402207d30434SBenny Halevy if (unlikely(status)) 402307d30434SBenny Halevy return status; 4024c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4025c0eae66eSBenny Halevy if (unlikely(!p)) 4026c0eae66eSBenny Halevy goto out_overflow; 4027cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 402805d564feSAndy Adamson 40291da177e4SLinus Torvalds switch (delegation_type) { 40301da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 40311da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 40321da177e4SLinus Torvalds break; 40331da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 40341da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 40351da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 40361da177e4SLinus Torvalds return -EIO; 40371da177e4SLinus Torvalds } 40387539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4039c0eae66eSBenny Halevy out_overflow: 4040c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4041c0eae66eSBenny Halevy return -EIO; 40421da177e4SLinus Torvalds } 40431da177e4SLinus Torvalds 40441da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 40451da177e4SLinus Torvalds { 40468687b63aSAl Viro __be32 *p; 4047aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 40481da177e4SLinus Torvalds int status; 40491da177e4SLinus Torvalds 40501da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4051c1d51931STrond Myklebust if (status != -EIO) 4052c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 405307d30434SBenny Halevy if (!status) 405407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 405507d30434SBenny Halevy if (unlikely(status)) 40561da177e4SLinus Torvalds return status; 40571da177e4SLinus Torvalds 40581da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 40591da177e4SLinus Torvalds 4060c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4061c0eae66eSBenny Halevy if (unlikely(!p)) 4062c0eae66eSBenny Halevy goto out_overflow; 40636f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4064cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 40651da177e4SLinus Torvalds if (bmlen > 10) 40661da177e4SLinus Torvalds goto xdr_error; 40671da177e4SLinus Torvalds 4068c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4069c0eae66eSBenny Halevy if (unlikely(!p)) 4070c0eae66eSBenny Halevy goto out_overflow; 4071aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4072aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 40736f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4074aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4075aa53ed54SJeff Layton res->attrset[i] = 0; 4076aa53ed54SJeff Layton 40771da177e4SLinus Torvalds return decode_delegation(xdr, res); 40781da177e4SLinus Torvalds xdr_error: 40793110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 40801da177e4SLinus Torvalds return -EIO; 4081c0eae66eSBenny Halevy out_overflow: 4082c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4083c0eae66eSBenny Halevy return -EIO; 40841da177e4SLinus Torvalds } 40851da177e4SLinus Torvalds 40861da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 40871da177e4SLinus Torvalds { 40881da177e4SLinus Torvalds int status; 40891da177e4SLinus Torvalds 40901da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4091c1d51931STrond Myklebust if (status != -EIO) 4092c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 409307d30434SBenny Halevy if (!status) 409407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 40951da177e4SLinus Torvalds return status; 40961da177e4SLinus Torvalds } 40971da177e4SLinus Torvalds 40981da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 40991da177e4SLinus Torvalds { 41001da177e4SLinus Torvalds int status; 41011da177e4SLinus Torvalds 41021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4103c1d51931STrond Myklebust if (status != -EIO) 4104c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 410507d30434SBenny Halevy if (!status) 410607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41071da177e4SLinus Torvalds return status; 41081da177e4SLinus Torvalds } 41091da177e4SLinus Torvalds 41101da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 41111da177e4SLinus Torvalds { 41121da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 41131da177e4SLinus Torvalds } 41141da177e4SLinus Torvalds 41151da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 41161da177e4SLinus Torvalds { 41171da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 41181da177e4SLinus Torvalds } 41191da177e4SLinus Torvalds 41201da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 41211da177e4SLinus Torvalds { 41221da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 41238687b63aSAl Viro __be32 *p; 41241da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 41251da177e4SLinus Torvalds int status; 41261da177e4SLinus Torvalds 41271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 41281da177e4SLinus Torvalds if (status) 41291da177e4SLinus Torvalds return status; 4130c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4131c0eae66eSBenny Halevy if (unlikely(!p)) 4132c0eae66eSBenny Halevy goto out_overflow; 41336f723f77SBenny Halevy eof = be32_to_cpup(p++); 4134cccddf4fSBenny Halevy count = be32_to_cpup(p); 41351da177e4SLinus Torvalds hdrlen = (u8 *) p - (u8 *) iov->iov_base; 41361da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 41371da177e4SLinus Torvalds if (count > recvd) { 4138fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 41391da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 41401da177e4SLinus Torvalds count = recvd; 41411da177e4SLinus Torvalds eof = 0; 41421da177e4SLinus Torvalds } 41431da177e4SLinus Torvalds xdr_read_pages(xdr, count); 41441da177e4SLinus Torvalds res->eof = eof; 41451da177e4SLinus Torvalds res->count = count; 41461da177e4SLinus Torvalds return 0; 4147c0eae66eSBenny Halevy out_overflow: 4148c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4149c0eae66eSBenny Halevy return -EIO; 41501da177e4SLinus Torvalds } 41511da177e4SLinus Torvalds 41521da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 41531da177e4SLinus Torvalds { 41541da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 41551da177e4SLinus Torvalds struct page *page = *rcvbuf->pages; 41561da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4157bcecff77SChuck Lever size_t hdrlen; 4158bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 41598687b63aSAl Viro __be32 *end, *entry, *p, *kaddr; 41607bda2cdfSJeff Layton unsigned int nr = 0; 4161bcecff77SChuck Lever int status; 41621da177e4SLinus Torvalds 41631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4164db942bbdSBenny Halevy if (!status) 4165db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4166db942bbdSBenny Halevy if (unlikely(status)) 41671da177e4SLinus Torvalds return status; 416844109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 416944109241SFred Isaman __func__, 4170eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4171eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4172eadf4598STrond Myklebust 41731da177e4SLinus Torvalds 4174db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 41751da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 41761da177e4SLinus Torvalds if (pglen > recvd) 41771da177e4SLinus Torvalds pglen = recvd; 41781da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 41791da177e4SLinus Torvalds 41801da177e4SLinus Torvalds BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE); 41818687b63aSAl Viro kaddr = p = kmap_atomic(page, KM_USER0); 4182e8896495SDavid Howells end = p + ((pglen + readdir->pgbase) >> 2); 41831da177e4SLinus Torvalds entry = p; 41847bda2cdfSJeff Layton 41857bda2cdfSJeff Layton /* Make sure the packet actually has a value_follows and EOF entry */ 41867bda2cdfSJeff Layton if ((entry + 1) > end) 41877bda2cdfSJeff Layton goto short_pkt; 41887bda2cdfSJeff Layton 41897bda2cdfSJeff Layton for (; *p++; nr++) { 4190bcecff77SChuck Lever u32 len, attrlen, xlen; 4191e8896495SDavid Howells if (end - p < 3) 41921da177e4SLinus Torvalds goto short_pkt; 4193eadf4598STrond Myklebust dprintk("cookie = %Lu, ", *((unsigned long long *)p)); 41941da177e4SLinus Torvalds p += 2; /* cookie */ 41951da177e4SLinus Torvalds len = ntohl(*p++); /* filename length */ 41961da177e4SLinus Torvalds if (len > NFS4_MAXNAMLEN) { 4197fe82a183SChuck Lever dprintk("NFS: giant filename in readdir (len 0x%x)\n", 4198fe82a183SChuck Lever len); 41991da177e4SLinus Torvalds goto err_unmap; 42001da177e4SLinus Torvalds } 4201e8896495SDavid Howells xlen = XDR_QUADLEN(len); 4202e8896495SDavid Howells if (end - p < xlen + 1) 4203e8896495SDavid Howells goto short_pkt; 4204eadf4598STrond Myklebust dprintk("filename = %*s\n", len, (char *)p); 4205e8896495SDavid Howells p += xlen; 42061da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 4207e8896495SDavid Howells if (end - p < len + 1) 4208e8896495SDavid Howells goto short_pkt; 42091da177e4SLinus Torvalds p += len; 42101da177e4SLinus Torvalds attrlen = XDR_QUADLEN(ntohl(*p++)); 4211e8896495SDavid Howells if (end - p < attrlen + 2) 42121da177e4SLinus Torvalds goto short_pkt; 4213e8896495SDavid Howells p += attrlen; /* attributes */ 42141da177e4SLinus Torvalds entry = p; 42151da177e4SLinus Torvalds } 42167bda2cdfSJeff Layton /* 42177bda2cdfSJeff Layton * Apparently some server sends responses that are a valid size, but 42187bda2cdfSJeff Layton * contain no entries, and have value_follows==0 and EOF==0. For 42197bda2cdfSJeff Layton * those, just set the EOF marker. 42207bda2cdfSJeff Layton */ 42217bda2cdfSJeff Layton if (!nr && entry[1] == 0) { 42227bda2cdfSJeff Layton dprintk("NFS: readdir reply truncated!\n"); 42237bda2cdfSJeff Layton entry[1] = 1; 42247bda2cdfSJeff Layton } 42251da177e4SLinus Torvalds out: 42261da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 42271da177e4SLinus Torvalds return 0; 42281da177e4SLinus Torvalds short_pkt: 42297bda2cdfSJeff Layton /* 42307bda2cdfSJeff Layton * When we get a short packet there are 2 possibilities. We can 42317bda2cdfSJeff Layton * return an error, or fix up the response to look like a valid 42327bda2cdfSJeff Layton * response and return what we have so far. If there are no 42337bda2cdfSJeff Layton * entries and the packet was short, then return -EIO. If there 42347bda2cdfSJeff Layton * are valid entries in the response, return them and pretend that 42357bda2cdfSJeff Layton * the call was successful, but incomplete. The caller can retry the 42367bda2cdfSJeff Layton * readdir starting at the last cookie. 42377bda2cdfSJeff Layton */ 42383110ff80SHarvey Harrison dprintk("%s: short packet at entry %d\n", __func__, nr); 42391da177e4SLinus Torvalds entry[0] = entry[1] = 0; 42407bda2cdfSJeff Layton if (nr) 42411da177e4SLinus Torvalds goto out; 42421da177e4SLinus Torvalds err_unmap: 42431da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 42441da177e4SLinus Torvalds return -errno_NFSERR_IO; 42451da177e4SLinus Torvalds } 42461da177e4SLinus Torvalds 42471da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 42481da177e4SLinus Torvalds { 42491da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 42501da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4251bcecff77SChuck Lever size_t hdrlen; 4252bcecff77SChuck Lever u32 len, recvd; 42538687b63aSAl Viro __be32 *p; 42541da177e4SLinus Torvalds char *kaddr; 42551da177e4SLinus Torvalds int status; 42561da177e4SLinus Torvalds 42571da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 42581da177e4SLinus Torvalds if (status) 42591da177e4SLinus Torvalds return status; 42601da177e4SLinus Torvalds 42611da177e4SLinus Torvalds /* Convert length of symlink */ 4262c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4263c0eae66eSBenny Halevy if (unlikely(!p)) 4264c0eae66eSBenny Halevy goto out_overflow; 4265cccddf4fSBenny Halevy len = be32_to_cpup(p); 42661da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4267fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 42681da177e4SLinus Torvalds return -ENAMETOOLONG; 42691da177e4SLinus Torvalds } 42701da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 42711da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 42721da177e4SLinus Torvalds if (recvd < len) { 4273fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 42741da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 42751da177e4SLinus Torvalds return -EIO; 42761da177e4SLinus Torvalds } 42771da177e4SLinus Torvalds xdr_read_pages(xdr, len); 42781da177e4SLinus Torvalds /* 42791da177e4SLinus Torvalds * The XDR encode routine has set things up so that 42801da177e4SLinus Torvalds * the link text will be copied directly into the 42811da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 42821da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 42831da177e4SLinus Torvalds * null-termination). 42841da177e4SLinus Torvalds */ 42851da177e4SLinus Torvalds kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0); 42861da177e4SLinus Torvalds kaddr[len+rcvbuf->page_base] = '\0'; 42871da177e4SLinus Torvalds kunmap_atomic(kaddr, KM_USER0); 42881da177e4SLinus Torvalds return 0; 4289c0eae66eSBenny Halevy out_overflow: 4290c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4291c0eae66eSBenny Halevy return -EIO; 42921da177e4SLinus Torvalds } 42931da177e4SLinus Torvalds 42941da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42951da177e4SLinus Torvalds { 42961da177e4SLinus Torvalds int status; 42971da177e4SLinus Torvalds 42981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 42991da177e4SLinus Torvalds if (status) 43001da177e4SLinus Torvalds goto out; 43011da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 43021da177e4SLinus Torvalds out: 43031da177e4SLinus Torvalds return status; 43041da177e4SLinus Torvalds } 43051da177e4SLinus Torvalds 43061da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 43071da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 43081da177e4SLinus Torvalds { 43091da177e4SLinus Torvalds int status; 43101da177e4SLinus Torvalds 43111da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 43121da177e4SLinus Torvalds if (status) 43131da177e4SLinus Torvalds goto out; 43141da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 43151da177e4SLinus Torvalds goto out; 43161da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 43171da177e4SLinus Torvalds out: 43181da177e4SLinus Torvalds return status; 43191da177e4SLinus Torvalds } 43201da177e4SLinus Torvalds 43211da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 43221da177e4SLinus Torvalds { 43231da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 43241da177e4SLinus Torvalds } 43251da177e4SLinus Torvalds 432656ae19f3STrond Myklebust static int 432756ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 432856ae19f3STrond Myklebust { 432956ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 433056ae19f3STrond Myklebust } 433156ae19f3STrond Myklebust 4332029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4333029d105eSJ. Bruce Fields size_t *acl_len) 4334029d105eSJ. Bruce Fields { 43358687b63aSAl Viro __be32 *savep; 4336029d105eSJ. Bruce Fields uint32_t attrlen, 4337029d105eSJ. Bruce Fields bitmap[2] = {0}; 4338029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4339029d105eSJ. Bruce Fields int status; 4340029d105eSJ. Bruce Fields 4341029d105eSJ. Bruce Fields *acl_len = 0; 4342029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4343029d105eSJ. Bruce Fields goto out; 4344029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4345029d105eSJ. Bruce Fields goto out; 4346029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4347029d105eSJ. Bruce Fields goto out; 4348029d105eSJ. Bruce Fields 4349029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4350029d105eSJ. Bruce Fields return -EIO; 4351029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4352bcecff77SChuck Lever size_t hdrlen; 4353bcecff77SChuck Lever u32 recvd; 4354029d105eSJ. Bruce Fields 4355029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4356029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4357029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4358029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4359029d105eSJ. Bruce Fields if (attrlen > recvd) { 4360fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4361029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4362029d105eSJ. Bruce Fields attrlen, recvd); 4363029d105eSJ. Bruce Fields return -EINVAL; 4364029d105eSJ. Bruce Fields } 4365029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4366029d105eSJ. Bruce Fields *acl_len = attrlen; 43678c233cf9SJ. Bruce Fields } else 43688c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4369029d105eSJ. Bruce Fields 4370029d105eSJ. Bruce Fields out: 4371029d105eSJ. Bruce Fields return status; 4372029d105eSJ. Bruce Fields } 4373029d105eSJ. Bruce Fields 43741da177e4SLinus Torvalds static int 43751da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 43761da177e4SLinus Torvalds { 43771da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 43781da177e4SLinus Torvalds } 43791da177e4SLinus Torvalds 43809e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 43811da177e4SLinus Torvalds { 43828687b63aSAl Viro __be32 *p; 43831da177e4SLinus Torvalds uint32_t bmlen; 43841da177e4SLinus Torvalds int status; 43851da177e4SLinus Torvalds 43861da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 43871da177e4SLinus Torvalds if (status) 43881da177e4SLinus Torvalds return status; 4389c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4390c0eae66eSBenny Halevy if (unlikely(!p)) 4391c0eae66eSBenny Halevy goto out_overflow; 4392cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4393c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4394c0eae66eSBenny Halevy if (likely(p)) 43951da177e4SLinus Torvalds return 0; 4396c0eae66eSBenny Halevy out_overflow: 4397c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4398c0eae66eSBenny Halevy return -EIO; 43991da177e4SLinus Torvalds } 44001da177e4SLinus Torvalds 4401adfa6f98SDavid Howells static int decode_setclientid(struct xdr_stream *xdr, struct nfs_client *clp) 44021da177e4SLinus Torvalds { 44038687b63aSAl Viro __be32 *p; 44041da177e4SLinus Torvalds uint32_t opnum; 44051da177e4SLinus Torvalds int32_t nfserr; 44061da177e4SLinus Torvalds 4407c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4408c0eae66eSBenny Halevy if (unlikely(!p)) 4409c0eae66eSBenny Halevy goto out_overflow; 44106f723f77SBenny Halevy opnum = be32_to_cpup(p++); 44111da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4412fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 44131da177e4SLinus Torvalds " %d\n", opnum); 44141da177e4SLinus Torvalds return -EIO; 44151da177e4SLinus Torvalds } 4416cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 44171da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4418c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4419c0eae66eSBenny Halevy if (unlikely(!p)) 4420c0eae66eSBenny Halevy goto out_overflow; 44213ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &clp->cl_clientid); 442299398d06SBenny Halevy memcpy(clp->cl_confirm.data, p, NFS4_VERIFIER_SIZE); 44231da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 44241da177e4SLinus Torvalds uint32_t len; 44251da177e4SLinus Torvalds 44261da177e4SLinus Torvalds /* skip netid string */ 4427c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4428c0eae66eSBenny Halevy if (unlikely(!p)) 4429c0eae66eSBenny Halevy goto out_overflow; 4430cccddf4fSBenny Halevy len = be32_to_cpup(p); 4431c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4432c0eae66eSBenny Halevy if (unlikely(!p)) 4433c0eae66eSBenny Halevy goto out_overflow; 44341da177e4SLinus Torvalds 44351da177e4SLinus Torvalds /* skip uaddr string */ 4436c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4437c0eae66eSBenny Halevy if (unlikely(!p)) 4438c0eae66eSBenny Halevy goto out_overflow; 4439cccddf4fSBenny Halevy len = be32_to_cpup(p); 4440c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4441c0eae66eSBenny Halevy if (unlikely(!p)) 4442c0eae66eSBenny Halevy goto out_overflow; 44431da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 44441da177e4SLinus Torvalds } else 4445856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 44461da177e4SLinus Torvalds 44471da177e4SLinus Torvalds return 0; 4448c0eae66eSBenny Halevy out_overflow: 4449c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4450c0eae66eSBenny Halevy return -EIO; 44511da177e4SLinus Torvalds } 44521da177e4SLinus Torvalds 44531da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 44541da177e4SLinus Torvalds { 44551da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 44561da177e4SLinus Torvalds } 44571da177e4SLinus Torvalds 44581da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 44591da177e4SLinus Torvalds { 44608687b63aSAl Viro __be32 *p; 44611da177e4SLinus Torvalds int status; 44621da177e4SLinus Torvalds 44631da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 44641da177e4SLinus Torvalds if (status) 44651da177e4SLinus Torvalds return status; 44661da177e4SLinus Torvalds 4467c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4468c0eae66eSBenny Halevy if (unlikely(!p)) 4469c0eae66eSBenny Halevy goto out_overflow; 44706f723f77SBenny Halevy res->count = be32_to_cpup(p++); 44716f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 447299398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 44731da177e4SLinus Torvalds return 0; 4474c0eae66eSBenny Halevy out_overflow: 4475c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4476c0eae66eSBenny Halevy return -EIO; 44771da177e4SLinus Torvalds } 44781da177e4SLinus Torvalds 44791da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 44801da177e4SLinus Torvalds { 44811da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 44821da177e4SLinus Torvalds } 44831da177e4SLinus Torvalds 448499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 448599fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 448699fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 448799fe60d0SBenny Halevy { 448899fe60d0SBenny Halevy __be32 *p; 448999fe60d0SBenny Halevy uint32_t dummy; 44902460ba57SBenny Halevy char *dummy_str; 449199fe60d0SBenny Halevy int status; 449299fe60d0SBenny Halevy struct nfs_client *clp = res->client; 449399fe60d0SBenny Halevy 449499fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 449599fe60d0SBenny Halevy if (status) 449699fe60d0SBenny Halevy return status; 449799fe60d0SBenny Halevy 4498c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4499c0eae66eSBenny Halevy if (unlikely(!p)) 4500c0eae66eSBenny Halevy goto out_overflow; 4501cccddf4fSBenny Halevy xdr_decode_hyper(p, &clp->cl_ex_clid); 4502c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4503c0eae66eSBenny Halevy if (unlikely(!p)) 4504c0eae66eSBenny Halevy goto out_overflow; 45056f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 45066f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 450799fe60d0SBenny Halevy 450899fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4509cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 451099fe60d0SBenny Halevy if (dummy != SP4_NONE) 451199fe60d0SBenny Halevy return -EIO; 451299fe60d0SBenny Halevy 451399fe60d0SBenny Halevy /* Throw away minor_id */ 4514c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4515c0eae66eSBenny Halevy if (unlikely(!p)) 4516c0eae66eSBenny Halevy goto out_overflow; 451799fe60d0SBenny Halevy 451899fe60d0SBenny Halevy /* Throw away Major id */ 45192460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45202460ba57SBenny Halevy if (unlikely(status)) 45212460ba57SBenny Halevy return status; 452299fe60d0SBenny Halevy 452399fe60d0SBenny Halevy /* Throw away server_scope */ 45242460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45252460ba57SBenny Halevy if (unlikely(status)) 45262460ba57SBenny Halevy return status; 452799fe60d0SBenny Halevy 452899fe60d0SBenny Halevy /* Throw away Implementation id array */ 45292460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 45302460ba57SBenny Halevy if (unlikely(status)) 45312460ba57SBenny Halevy return status; 453299fe60d0SBenny Halevy 453399fe60d0SBenny Halevy return 0; 4534c0eae66eSBenny Halevy out_overflow: 4535c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4536c0eae66eSBenny Halevy return -EIO; 453799fe60d0SBenny Halevy } 4538fc931582SAndy Adamson 4539fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4540fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4541fc931582SAndy Adamson { 4542fc931582SAndy Adamson __be32 *p; 4543fc931582SAndy Adamson u32 nr_attrs; 4544fc931582SAndy Adamson 4545c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4546c0eae66eSBenny Halevy if (unlikely(!p)) 4547c0eae66eSBenny Halevy goto out_overflow; 45486f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 45496f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 45506f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 45516f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 45526f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 45536f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4554cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4555fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4556fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4557fc931582SAndy Adamson __func__, nr_attrs); 4558fc931582SAndy Adamson return -EINVAL; 4559fc931582SAndy Adamson } 4560c0eae66eSBenny Halevy if (nr_attrs == 1) { 4561c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4562c0eae66eSBenny Halevy if (unlikely(!p)) 4563c0eae66eSBenny Halevy goto out_overflow; 4564c0eae66eSBenny Halevy } 4565fc931582SAndy Adamson return 0; 4566c0eae66eSBenny Halevy out_overflow: 4567c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4568c0eae66eSBenny Halevy return -EIO; 4569fc931582SAndy Adamson } 4570fc931582SAndy Adamson 4571e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4572e78291e4SBenny Halevy { 4573e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4574fc931582SAndy Adamson } 4575fc931582SAndy Adamson 4576fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4577fc931582SAndy Adamson struct nfs41_create_session_res *res) 4578fc931582SAndy Adamson { 4579fc931582SAndy Adamson __be32 *p; 4580fc931582SAndy Adamson int status; 4581fc931582SAndy Adamson struct nfs_client *clp = res->client; 4582fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4583fc931582SAndy Adamson 4584fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4585e78291e4SBenny Halevy if (!status) 4586e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4587e78291e4SBenny Halevy if (unlikely(status)) 4588fc931582SAndy Adamson return status; 4589fc931582SAndy Adamson 4590fc931582SAndy Adamson /* seqid, flags */ 4591c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4592c0eae66eSBenny Halevy if (unlikely(!p)) 4593c0eae66eSBenny Halevy goto out_overflow; 45946f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4595cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4596fc931582SAndy Adamson 4597fc931582SAndy Adamson /* Channel attributes */ 4598fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4599fc931582SAndy Adamson if (!status) 4600fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4601fc931582SAndy Adamson return status; 4602c0eae66eSBenny Halevy out_overflow: 4603c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4604c0eae66eSBenny Halevy return -EIO; 4605fc931582SAndy Adamson } 46060f3e66c6SAndy Adamson 46070f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 46080f3e66c6SAndy Adamson { 46090f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 46100f3e66c6SAndy Adamson } 461118019753SRicardo Labiaga 461218019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 461318019753SRicardo Labiaga { 461418019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 461518019753SRicardo Labiaga } 461699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 461799fe60d0SBenny Halevy 46189b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 46199b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 46209b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 46219b7b9fccSAndy Adamson { 46229b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 4623fc01cea9SAndy Adamson struct nfs4_slot *slot; 4624fc01cea9SAndy Adamson struct nfs4_sessionid id; 4625fc01cea9SAndy Adamson u32 dummy; 4626fc01cea9SAndy Adamson int status; 4627fc01cea9SAndy Adamson __be32 *p; 4628fc01cea9SAndy Adamson 46299b7b9fccSAndy Adamson if (!res->sr_session) 46309b7b9fccSAndy Adamson return 0; 46319b7b9fccSAndy Adamson 4632fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 4633e78291e4SBenny Halevy if (!status) 4634e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 4635e78291e4SBenny Halevy if (unlikely(status)) 4636fc01cea9SAndy Adamson goto out_err; 46379b7b9fccSAndy Adamson 4638fc01cea9SAndy Adamson /* 4639fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 4640fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 4641fc01cea9SAndy Adamson */ 4642fdcb4577STrond Myklebust status = -EREMOTEIO; 4643fc01cea9SAndy Adamson 4644fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 4645fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 4646fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 4647fc01cea9SAndy Adamson goto out_err; 4648fc01cea9SAndy Adamson } 4649e78291e4SBenny Halevy 4650c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4651c0eae66eSBenny Halevy if (unlikely(!p)) 4652c0eae66eSBenny Halevy goto out_overflow; 4653e78291e4SBenny Halevy 4654fc01cea9SAndy Adamson /* seqid */ 4655e78291e4SBenny Halevy slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; 46566f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4657fc01cea9SAndy Adamson if (dummy != slot->seq_nr) { 4658fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 4659fc01cea9SAndy Adamson goto out_err; 4660fc01cea9SAndy Adamson } 4661fc01cea9SAndy Adamson /* slot id */ 46626f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4663fc01cea9SAndy Adamson if (dummy != res->sr_slotid) { 4664fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 4665fc01cea9SAndy Adamson goto out_err; 4666fc01cea9SAndy Adamson } 4667fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 46686f723f77SBenny Halevy dummy = be32_to_cpup(p++); 4669fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 46706f723f77SBenny Halevy dummy = be32_to_cpup(p++); 46710629e370SAlexandros Batsakis /* result flags */ 46720629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 4673fc01cea9SAndy Adamson status = 0; 4674fc01cea9SAndy Adamson out_err: 4675fc01cea9SAndy Adamson res->sr_status = status; 4676fc01cea9SAndy Adamson return status; 4677c0eae66eSBenny Halevy out_overflow: 4678c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4679c0eae66eSBenny Halevy status = -EIO; 4680c0eae66eSBenny Halevy goto out_err; 4681fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 46829b7b9fccSAndy Adamson return 0; 4683fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 46849b7b9fccSAndy Adamson } 46859b7b9fccSAndy Adamson 46861da177e4SLinus Torvalds /* 468749c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 468849c2559eSBenny Halevy */ 468949c2559eSBenny Halevy 469049c2559eSBenny Halevy /* 46911da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 46921da177e4SLinus Torvalds */ 46938687b63aSAl Viro static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 46941da177e4SLinus Torvalds { 46951da177e4SLinus Torvalds struct xdr_stream xdr; 46961da177e4SLinus Torvalds struct compound_hdr hdr; 46971da177e4SLinus Torvalds int status; 46981da177e4SLinus Torvalds 46991da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47001da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 47011da177e4SLinus Torvalds if (status) 47021da177e4SLinus Torvalds goto out; 47039b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47049b7b9fccSAndy Adamson if (status) 47059b7b9fccSAndy Adamson goto out; 47061da177e4SLinus Torvalds status = decode_putfh(&xdr); 47071da177e4SLinus Torvalds if (status) 47081da177e4SLinus Torvalds goto out; 47091da177e4SLinus Torvalds status = decode_open_downgrade(&xdr, res); 4710516a6af6STrond Myklebust if (status != 0) 4711516a6af6STrond Myklebust goto out; 471280e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 471380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 47141da177e4SLinus Torvalds out: 47151da177e4SLinus Torvalds return status; 47161da177e4SLinus Torvalds } 47171da177e4SLinus Torvalds 47181da177e4SLinus Torvalds /* 47191da177e4SLinus Torvalds * Decode ACCESS response 47201da177e4SLinus Torvalds */ 47218687b63aSAl Viro static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_accessres *res) 47221da177e4SLinus Torvalds { 47231da177e4SLinus Torvalds struct xdr_stream xdr; 47241da177e4SLinus Torvalds struct compound_hdr hdr; 47251da177e4SLinus Torvalds int status; 47261da177e4SLinus Torvalds 47271da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47289b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47299b7b9fccSAndy Adamson if (status) 47309b7b9fccSAndy Adamson goto out; 47319b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47329b7b9fccSAndy Adamson if (status) 47331da177e4SLinus Torvalds goto out; 473476b32999STrond Myklebust status = decode_putfh(&xdr); 473576b32999STrond Myklebust if (status != 0) 473676b32999STrond Myklebust goto out; 47371da177e4SLinus Torvalds status = decode_access(&xdr, res); 473876b32999STrond Myklebust if (status != 0) 473976b32999STrond Myklebust goto out; 474080e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 474180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 47421da177e4SLinus Torvalds out: 47431da177e4SLinus Torvalds return status; 47441da177e4SLinus Torvalds } 47451da177e4SLinus Torvalds 47461da177e4SLinus Torvalds /* 47471da177e4SLinus Torvalds * Decode LOOKUP response 47481da177e4SLinus Torvalds */ 47498687b63aSAl Viro static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 47501da177e4SLinus Torvalds { 47511da177e4SLinus Torvalds struct xdr_stream xdr; 47521da177e4SLinus Torvalds struct compound_hdr hdr; 47531da177e4SLinus Torvalds int status; 47541da177e4SLinus Torvalds 47551da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47569b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47579b7b9fccSAndy Adamson if (status) 47589b7b9fccSAndy Adamson goto out; 47599b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47609b7b9fccSAndy Adamson if (status) 47611da177e4SLinus Torvalds goto out; 47621da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 47631da177e4SLinus Torvalds goto out; 47641da177e4SLinus Torvalds if ((status = decode_lookup(&xdr)) != 0) 47651da177e4SLinus Torvalds goto out; 47661da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 47671da177e4SLinus Torvalds goto out; 476880e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server 476980e52aceSTrond Myklebust ,!RPC_IS_ASYNC(rqstp->rq_task)); 47701da177e4SLinus Torvalds out: 47711da177e4SLinus Torvalds return status; 47721da177e4SLinus Torvalds } 47731da177e4SLinus Torvalds 47741da177e4SLinus Torvalds /* 47751da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 47761da177e4SLinus Torvalds */ 47778687b63aSAl Viro static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_lookup_res *res) 47781da177e4SLinus Torvalds { 47791da177e4SLinus Torvalds struct xdr_stream xdr; 47801da177e4SLinus Torvalds struct compound_hdr hdr; 47811da177e4SLinus Torvalds int status; 47821da177e4SLinus Torvalds 47831da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 47849b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 47859b7b9fccSAndy Adamson if (status) 47869b7b9fccSAndy Adamson goto out; 47879b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 47889b7b9fccSAndy Adamson if (status) 47891da177e4SLinus Torvalds goto out; 47901da177e4SLinus Torvalds if ((status = decode_putrootfh(&xdr)) != 0) 47911da177e4SLinus Torvalds goto out; 47921da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) == 0) 479380e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 479480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 47951da177e4SLinus Torvalds out: 47961da177e4SLinus Torvalds return status; 47971da177e4SLinus Torvalds } 47981da177e4SLinus Torvalds 47991da177e4SLinus Torvalds /* 48001da177e4SLinus Torvalds * Decode REMOVE response 48011da177e4SLinus Torvalds */ 48024fdc17b2STrond Myklebust static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, __be32 *p, struct nfs_removeres *res) 48031da177e4SLinus Torvalds { 48041da177e4SLinus Torvalds struct xdr_stream xdr; 48051da177e4SLinus Torvalds struct compound_hdr hdr; 48061da177e4SLinus Torvalds int status; 48071da177e4SLinus Torvalds 48081da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48099b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48109b7b9fccSAndy Adamson if (status) 48119b7b9fccSAndy Adamson goto out; 48129b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48139b7b9fccSAndy Adamson if (status) 48141da177e4SLinus Torvalds goto out; 481516e42959STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 481616e42959STrond Myklebust goto out; 481716e42959STrond Myklebust if ((status = decode_remove(&xdr, &res->cinfo)) != 0) 481816e42959STrond Myklebust goto out; 481980e52aceSTrond Myklebust decode_getfattr(&xdr, &res->dir_attr, res->server, 482080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48211da177e4SLinus Torvalds out: 48221da177e4SLinus Torvalds return status; 48231da177e4SLinus Torvalds } 48241da177e4SLinus Torvalds 48251da177e4SLinus Torvalds /* 48261da177e4SLinus Torvalds * Decode RENAME response 48271da177e4SLinus Torvalds */ 48288687b63aSAl Viro static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_rename_res *res) 48291da177e4SLinus Torvalds { 48301da177e4SLinus Torvalds struct xdr_stream xdr; 48311da177e4SLinus Torvalds struct compound_hdr hdr; 48321da177e4SLinus Torvalds int status; 48331da177e4SLinus Torvalds 48341da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48359b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48369b7b9fccSAndy Adamson if (status) 48379b7b9fccSAndy Adamson goto out; 48389b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48399b7b9fccSAndy Adamson if (status) 48401da177e4SLinus Torvalds goto out; 48411da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48421da177e4SLinus Torvalds goto out; 48431da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 48441da177e4SLinus Torvalds goto out; 48451da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48461da177e4SLinus Torvalds goto out; 48476caf2c82STrond Myklebust if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0) 48486caf2c82STrond Myklebust goto out; 48496caf2c82STrond Myklebust /* Current FH is target directory */ 485080e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->new_fattr, res->server, 485180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 48526caf2c82STrond Myklebust goto out; 48536caf2c82STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 48546caf2c82STrond Myklebust goto out; 485580e52aceSTrond Myklebust decode_getfattr(&xdr, res->old_fattr, res->server, 485680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48571da177e4SLinus Torvalds out: 48581da177e4SLinus Torvalds return status; 48591da177e4SLinus Torvalds } 48601da177e4SLinus Torvalds 48611da177e4SLinus Torvalds /* 48621da177e4SLinus Torvalds * Decode LINK response 48631da177e4SLinus Torvalds */ 48648687b63aSAl Viro static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_link_res *res) 48651da177e4SLinus Torvalds { 48661da177e4SLinus Torvalds struct xdr_stream xdr; 48671da177e4SLinus Torvalds struct compound_hdr hdr; 48681da177e4SLinus Torvalds int status; 48691da177e4SLinus Torvalds 48701da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 48719b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 48729b7b9fccSAndy Adamson if (status) 48739b7b9fccSAndy Adamson goto out; 48749b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 48759b7b9fccSAndy Adamson if (status) 48761da177e4SLinus Torvalds goto out; 48771da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48781da177e4SLinus Torvalds goto out; 48791da177e4SLinus Torvalds if ((status = decode_savefh(&xdr)) != 0) 48801da177e4SLinus Torvalds goto out; 48811da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 48821da177e4SLinus Torvalds goto out; 488391ba2eeeSTrond Myklebust if ((status = decode_link(&xdr, &res->cinfo)) != 0) 488491ba2eeeSTrond Myklebust goto out; 488591ba2eeeSTrond Myklebust /* 488691ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 488791ba2eeeSTrond Myklebust * filehandle. 488891ba2eeeSTrond Myklebust */ 488980e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->dir_attr, res->server, 489080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 489191ba2eeeSTrond Myklebust goto out; 489291ba2eeeSTrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 489391ba2eeeSTrond Myklebust goto out; 489480e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 489580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 48961da177e4SLinus Torvalds out: 48971da177e4SLinus Torvalds return status; 48981da177e4SLinus Torvalds } 48991da177e4SLinus Torvalds 49001da177e4SLinus Torvalds /* 49011da177e4SLinus Torvalds * Decode CREATE response 49021da177e4SLinus Torvalds */ 49038687b63aSAl Viro static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 49041da177e4SLinus Torvalds { 49051da177e4SLinus Torvalds struct xdr_stream xdr; 49061da177e4SLinus Torvalds struct compound_hdr hdr; 49071da177e4SLinus Torvalds int status; 49081da177e4SLinus Torvalds 49091da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49109b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 49119b7b9fccSAndy Adamson if (status) 49129b7b9fccSAndy Adamson goto out; 49139b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49149b7b9fccSAndy Adamson if (status) 49151da177e4SLinus Torvalds goto out; 49161da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 49171da177e4SLinus Torvalds goto out; 491856ae19f3STrond Myklebust if ((status = decode_savefh(&xdr)) != 0) 491956ae19f3STrond Myklebust goto out; 49201da177e4SLinus Torvalds if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0) 49211da177e4SLinus Torvalds goto out; 49221da177e4SLinus Torvalds if ((status = decode_getfh(&xdr, res->fh)) != 0) 49231da177e4SLinus Torvalds goto out; 492480e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->fattr, res->server, 492580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 492656ae19f3STrond Myklebust goto out; 492756ae19f3STrond Myklebust if ((status = decode_restorefh(&xdr)) != 0) 492856ae19f3STrond Myklebust goto out; 492980e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_fattr, res->server, 493080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49311da177e4SLinus Torvalds out: 49321da177e4SLinus Torvalds return status; 49331da177e4SLinus Torvalds } 49341da177e4SLinus Torvalds 49351da177e4SLinus Torvalds /* 49361da177e4SLinus Torvalds * Decode SYMLINK response 49371da177e4SLinus Torvalds */ 49388687b63aSAl Viro static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_create_res *res) 49391da177e4SLinus Torvalds { 49401da177e4SLinus Torvalds return nfs4_xdr_dec_create(rqstp, p, res); 49411da177e4SLinus Torvalds } 49421da177e4SLinus Torvalds 49431da177e4SLinus Torvalds /* 49441da177e4SLinus Torvalds * Decode GETATTR response 49451da177e4SLinus Torvalds */ 49468687b63aSAl Viro static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_getattr_res *res) 49471da177e4SLinus Torvalds { 49481da177e4SLinus Torvalds struct xdr_stream xdr; 49491da177e4SLinus Torvalds struct compound_hdr hdr; 49501da177e4SLinus Torvalds int status; 49511da177e4SLinus Torvalds 49521da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 49531da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 49541da177e4SLinus Torvalds if (status) 49551da177e4SLinus Torvalds goto out; 49569b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 49579b7b9fccSAndy Adamson if (status) 49589b7b9fccSAndy Adamson goto out; 49591da177e4SLinus Torvalds status = decode_putfh(&xdr); 49601da177e4SLinus Torvalds if (status) 49611da177e4SLinus Torvalds goto out; 496280e52aceSTrond Myklebust status = decode_getfattr(&xdr, res->fattr, res->server, 496380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 49641da177e4SLinus Torvalds out: 49651da177e4SLinus Torvalds return status; 49661da177e4SLinus Torvalds } 49671da177e4SLinus Torvalds 496823ec6965SJ. Bruce Fields /* 496923ec6965SJ. Bruce Fields * Encode an SETACL request 497023ec6965SJ. Bruce Fields */ 497123ec6965SJ. Bruce Fields static int 49728687b63aSAl Viro nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args) 497323ec6965SJ. Bruce Fields { 497423ec6965SJ. Bruce Fields struct xdr_stream xdr; 497523ec6965SJ. Bruce Fields struct compound_hdr hdr = { 497666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 497723ec6965SJ. Bruce Fields }; 497823ec6965SJ. Bruce Fields int status; 497923ec6965SJ. Bruce Fields 498023ec6965SJ. Bruce Fields xdr_init_encode(&xdr, &req->rq_snd_buf, p); 49810c4e8c18SBenny Halevy encode_compound_hdr(&xdr, req, &hdr); 49829b7b9fccSAndy Adamson encode_sequence(&xdr, &args->seq_args, &hdr); 4983cf8cdbe5SAndy Adamson encode_putfh(&xdr, args->fh, &hdr); 4984d017931cSAndy Adamson status = encode_setacl(&xdr, args, &hdr); 4985d017931cSAndy Adamson encode_nops(&hdr); 498623ec6965SJ. Bruce Fields return status; 498723ec6965SJ. Bruce Fields } 498805d564feSAndy Adamson 498923ec6965SJ. Bruce Fields /* 499023ec6965SJ. Bruce Fields * Decode SETACL response 499123ec6965SJ. Bruce Fields */ 499223ec6965SJ. Bruce Fields static int 499373c403a9SBenny Halevy nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, __be32 *p, 499473c403a9SBenny Halevy struct nfs_setaclres *res) 499523ec6965SJ. Bruce Fields { 499623ec6965SJ. Bruce Fields struct xdr_stream xdr; 499723ec6965SJ. Bruce Fields struct compound_hdr hdr; 499823ec6965SJ. Bruce Fields int status; 499923ec6965SJ. Bruce Fields 500023ec6965SJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 500123ec6965SJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 500223ec6965SJ. Bruce Fields if (status) 500323ec6965SJ. Bruce Fields goto out; 50049b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50059b7b9fccSAndy Adamson if (status) 50069b7b9fccSAndy Adamson goto out; 500723ec6965SJ. Bruce Fields status = decode_putfh(&xdr); 500823ec6965SJ. Bruce Fields if (status) 500923ec6965SJ. Bruce Fields goto out; 50109e9ecc03SBenny Halevy status = decode_setattr(&xdr); 501123ec6965SJ. Bruce Fields out: 501223ec6965SJ. Bruce Fields return status; 501323ec6965SJ. Bruce Fields } 50141da177e4SLinus Torvalds 50151da177e4SLinus Torvalds /* 5016029d105eSJ. Bruce Fields * Decode GETACL response 5017029d105eSJ. Bruce Fields */ 5018029d105eSJ. Bruce Fields static int 5019663c79b3SBenny Halevy nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, __be32 *p, 5020663c79b3SBenny Halevy struct nfs_getaclres *res) 5021029d105eSJ. Bruce Fields { 5022029d105eSJ. Bruce Fields struct xdr_stream xdr; 5023029d105eSJ. Bruce Fields struct compound_hdr hdr; 5024029d105eSJ. Bruce Fields int status; 5025029d105eSJ. Bruce Fields 5026029d105eSJ. Bruce Fields xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5027029d105eSJ. Bruce Fields status = decode_compound_hdr(&xdr, &hdr); 5028029d105eSJ. Bruce Fields if (status) 5029029d105eSJ. Bruce Fields goto out; 50309b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50319b7b9fccSAndy Adamson if (status) 50329b7b9fccSAndy Adamson goto out; 5033029d105eSJ. Bruce Fields status = decode_putfh(&xdr); 5034029d105eSJ. Bruce Fields if (status) 5035029d105eSJ. Bruce Fields goto out; 5036663c79b3SBenny Halevy status = decode_getacl(&xdr, rqstp, &res->acl_len); 5037029d105eSJ. Bruce Fields 5038029d105eSJ. Bruce Fields out: 5039029d105eSJ. Bruce Fields return status; 5040029d105eSJ. Bruce Fields } 5041029d105eSJ. Bruce Fields 5042029d105eSJ. Bruce Fields /* 50431da177e4SLinus Torvalds * Decode CLOSE response 50441da177e4SLinus Torvalds */ 50458687b63aSAl Viro static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res) 50461da177e4SLinus Torvalds { 50471da177e4SLinus Torvalds struct xdr_stream xdr; 50481da177e4SLinus Torvalds struct compound_hdr hdr; 50491da177e4SLinus Torvalds int status; 50501da177e4SLinus Torvalds 50511da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50521da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50531da177e4SLinus Torvalds if (status) 50541da177e4SLinus Torvalds goto out; 50559b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50569b7b9fccSAndy Adamson if (status) 50579b7b9fccSAndy Adamson goto out; 50581da177e4SLinus Torvalds status = decode_putfh(&xdr); 50591da177e4SLinus Torvalds if (status) 50601da177e4SLinus Torvalds goto out; 50611da177e4SLinus Torvalds status = decode_close(&xdr, res); 5062516a6af6STrond Myklebust if (status != 0) 5063516a6af6STrond Myklebust goto out; 5064516a6af6STrond Myklebust /* 5065516a6af6STrond Myklebust * Note: Server may do delete on close for this file 5066516a6af6STrond Myklebust * in which case the getattr call will fail with 5067516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 5068516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 5069516a6af6STrond Myklebust */ 507080e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 507180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 50721da177e4SLinus Torvalds out: 50731da177e4SLinus Torvalds return status; 50741da177e4SLinus Torvalds } 50751da177e4SLinus Torvalds 50761da177e4SLinus Torvalds /* 50771da177e4SLinus Torvalds * Decode OPEN response 50781da177e4SLinus Torvalds */ 50798687b63aSAl Viro static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 50801da177e4SLinus Torvalds { 50811da177e4SLinus Torvalds struct xdr_stream xdr; 50821da177e4SLinus Torvalds struct compound_hdr hdr; 50831da177e4SLinus Torvalds int status; 50841da177e4SLinus Torvalds 50851da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 50861da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 50871da177e4SLinus Torvalds if (status) 50881da177e4SLinus Torvalds goto out; 50899b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 50909b7b9fccSAndy Adamson if (status) 50919b7b9fccSAndy Adamson goto out; 50921da177e4SLinus Torvalds status = decode_putfh(&xdr); 50931da177e4SLinus Torvalds if (status) 50941da177e4SLinus Torvalds goto out; 509556ae19f3STrond Myklebust status = decode_savefh(&xdr); 509656ae19f3STrond Myklebust if (status) 509756ae19f3STrond Myklebust goto out; 50981da177e4SLinus Torvalds status = decode_open(&xdr, res); 50991da177e4SLinus Torvalds if (status) 51001da177e4SLinus Torvalds goto out; 51019936781dSTrond Myklebust if (decode_getfh(&xdr, &res->fh) != 0) 51021da177e4SLinus Torvalds goto out; 510380e52aceSTrond Myklebust if (decode_getfattr(&xdr, res->f_attr, res->server, 510480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 510556ae19f3STrond Myklebust goto out; 5106365c8f58STrond Myklebust if (decode_restorefh(&xdr) != 0) 510756ae19f3STrond Myklebust goto out; 510880e52aceSTrond Myklebust decode_getfattr(&xdr, res->dir_attr, res->server, 510980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51101da177e4SLinus Torvalds out: 51111da177e4SLinus Torvalds return status; 51121da177e4SLinus Torvalds } 51131da177e4SLinus Torvalds 51141da177e4SLinus Torvalds /* 51151da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 51161da177e4SLinus Torvalds */ 51178687b63aSAl Viro static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res) 51181da177e4SLinus Torvalds { 51191da177e4SLinus Torvalds struct xdr_stream xdr; 51201da177e4SLinus Torvalds struct compound_hdr hdr; 51211da177e4SLinus Torvalds int status; 51221da177e4SLinus Torvalds 51231da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51241da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51251da177e4SLinus Torvalds if (status) 51261da177e4SLinus Torvalds goto out; 51271da177e4SLinus Torvalds status = decode_putfh(&xdr); 51281da177e4SLinus Torvalds if (status) 51291da177e4SLinus Torvalds goto out; 51301da177e4SLinus Torvalds status = decode_open_confirm(&xdr, res); 51311da177e4SLinus Torvalds out: 51321da177e4SLinus Torvalds return status; 51331da177e4SLinus Torvalds } 51341da177e4SLinus Torvalds 51351da177e4SLinus Torvalds /* 51361da177e4SLinus Torvalds * Decode OPEN response 51371da177e4SLinus Torvalds */ 51388687b63aSAl Viro static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res) 51391da177e4SLinus Torvalds { 51401da177e4SLinus Torvalds struct xdr_stream xdr; 51411da177e4SLinus Torvalds struct compound_hdr hdr; 51421da177e4SLinus Torvalds int status; 51431da177e4SLinus Torvalds 51441da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51451da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51461da177e4SLinus Torvalds if (status) 51471da177e4SLinus Torvalds goto out; 51489b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51499b7b9fccSAndy Adamson if (status) 51509b7b9fccSAndy Adamson goto out; 51511da177e4SLinus Torvalds status = decode_putfh(&xdr); 51521da177e4SLinus Torvalds if (status) 51531da177e4SLinus Torvalds goto out; 51541da177e4SLinus Torvalds status = decode_open(&xdr, res); 5155864472e9STrond Myklebust if (status) 5156864472e9STrond Myklebust goto out; 515780e52aceSTrond Myklebust decode_getfattr(&xdr, res->f_attr, res->server, 515880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51591da177e4SLinus Torvalds out: 51601da177e4SLinus Torvalds return status; 51611da177e4SLinus Torvalds } 51621da177e4SLinus Torvalds 51631da177e4SLinus Torvalds /* 51641da177e4SLinus Torvalds * Decode SETATTR response 51651da177e4SLinus Torvalds */ 51668687b63aSAl Viro static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res) 51671da177e4SLinus Torvalds { 51681da177e4SLinus Torvalds struct xdr_stream xdr; 51691da177e4SLinus Torvalds struct compound_hdr hdr; 51701da177e4SLinus Torvalds int status; 51711da177e4SLinus Torvalds 51721da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 51731da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 51741da177e4SLinus Torvalds if (status) 51751da177e4SLinus Torvalds goto out; 51769b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 51779b7b9fccSAndy Adamson if (status) 51789b7b9fccSAndy Adamson goto out; 51791da177e4SLinus Torvalds status = decode_putfh(&xdr); 51801da177e4SLinus Torvalds if (status) 51811da177e4SLinus Torvalds goto out; 51829e9ecc03SBenny Halevy status = decode_setattr(&xdr); 51831da177e4SLinus Torvalds if (status) 51841da177e4SLinus Torvalds goto out; 518580e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 518680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 51871da177e4SLinus Torvalds out: 51881da177e4SLinus Torvalds return status; 51891da177e4SLinus Torvalds } 51901da177e4SLinus Torvalds 51911da177e4SLinus Torvalds /* 51921da177e4SLinus Torvalds * Decode LOCK response 51931da177e4SLinus Torvalds */ 51948687b63aSAl Viro static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lock_res *res) 51951da177e4SLinus Torvalds { 51961da177e4SLinus Torvalds struct xdr_stream xdr; 51971da177e4SLinus Torvalds struct compound_hdr hdr; 51981da177e4SLinus Torvalds int status; 51991da177e4SLinus Torvalds 52001da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52011da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52021da177e4SLinus Torvalds if (status) 52031da177e4SLinus Torvalds goto out; 52049b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52059b7b9fccSAndy Adamson if (status) 52069b7b9fccSAndy Adamson goto out; 52071da177e4SLinus Torvalds status = decode_putfh(&xdr); 52081da177e4SLinus Torvalds if (status) 52091da177e4SLinus Torvalds goto out; 52101da177e4SLinus Torvalds status = decode_lock(&xdr, res); 52111da177e4SLinus Torvalds out: 52121da177e4SLinus Torvalds return status; 52131da177e4SLinus Torvalds } 52141da177e4SLinus Torvalds 52151da177e4SLinus Torvalds /* 52161da177e4SLinus Torvalds * Decode LOCKT response 52171da177e4SLinus Torvalds */ 52188687b63aSAl Viro static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, __be32 *p, struct nfs_lockt_res *res) 52191da177e4SLinus Torvalds { 52201da177e4SLinus Torvalds struct xdr_stream xdr; 52211da177e4SLinus Torvalds struct compound_hdr hdr; 52221da177e4SLinus Torvalds int status; 52231da177e4SLinus Torvalds 52241da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52251da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52261da177e4SLinus Torvalds if (status) 52271da177e4SLinus Torvalds goto out; 52289b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52299b7b9fccSAndy Adamson if (status) 52309b7b9fccSAndy Adamson goto out; 52311da177e4SLinus Torvalds status = decode_putfh(&xdr); 52321da177e4SLinus Torvalds if (status) 52331da177e4SLinus Torvalds goto out; 52341da177e4SLinus Torvalds status = decode_lockt(&xdr, res); 52351da177e4SLinus Torvalds out: 52361da177e4SLinus Torvalds return status; 52371da177e4SLinus Torvalds } 52381da177e4SLinus Torvalds 52391da177e4SLinus Torvalds /* 52401da177e4SLinus Torvalds * Decode LOCKU response 52411da177e4SLinus Torvalds */ 52428687b63aSAl Viro static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, __be32 *p, struct nfs_locku_res *res) 52431da177e4SLinus Torvalds { 52441da177e4SLinus Torvalds struct xdr_stream xdr; 52451da177e4SLinus Torvalds struct compound_hdr hdr; 52461da177e4SLinus Torvalds int status; 52471da177e4SLinus Torvalds 52481da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52491da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52501da177e4SLinus Torvalds if (status) 52511da177e4SLinus Torvalds goto out; 52529b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52539b7b9fccSAndy Adamson if (status) 52549b7b9fccSAndy Adamson goto out; 52551da177e4SLinus Torvalds status = decode_putfh(&xdr); 52561da177e4SLinus Torvalds if (status) 52571da177e4SLinus Torvalds goto out; 52581da177e4SLinus Torvalds status = decode_locku(&xdr, res); 52591da177e4SLinus Torvalds out: 52601da177e4SLinus Torvalds return status; 52611da177e4SLinus Torvalds } 52621da177e4SLinus Torvalds 52631da177e4SLinus Torvalds /* 52641da177e4SLinus Torvalds * Decode READLINK response 52651da177e4SLinus Torvalds */ 5266f50c7000SBenny Halevy static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, __be32 *p, 5267f50c7000SBenny Halevy struct nfs4_readlink_res *res) 52681da177e4SLinus Torvalds { 52691da177e4SLinus Torvalds struct xdr_stream xdr; 52701da177e4SLinus Torvalds struct compound_hdr hdr; 52711da177e4SLinus Torvalds int status; 52721da177e4SLinus Torvalds 52731da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52741da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52751da177e4SLinus Torvalds if (status) 52761da177e4SLinus Torvalds goto out; 52779b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 52789b7b9fccSAndy Adamson if (status) 52799b7b9fccSAndy Adamson goto out; 52801da177e4SLinus Torvalds status = decode_putfh(&xdr); 52811da177e4SLinus Torvalds if (status) 52821da177e4SLinus Torvalds goto out; 52831da177e4SLinus Torvalds status = decode_readlink(&xdr, rqstp); 52841da177e4SLinus Torvalds out: 52851da177e4SLinus Torvalds return status; 52861da177e4SLinus Torvalds } 52871da177e4SLinus Torvalds 52881da177e4SLinus Torvalds /* 52891da177e4SLinus Torvalds * Decode READDIR response 52901da177e4SLinus Torvalds */ 52918687b63aSAl Viro static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_readdir_res *res) 52921da177e4SLinus Torvalds { 52931da177e4SLinus Torvalds struct xdr_stream xdr; 52941da177e4SLinus Torvalds struct compound_hdr hdr; 52951da177e4SLinus Torvalds int status; 52961da177e4SLinus Torvalds 52971da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 52981da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 52991da177e4SLinus Torvalds if (status) 53001da177e4SLinus Torvalds goto out; 53019b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53029b7b9fccSAndy Adamson if (status) 53039b7b9fccSAndy Adamson goto out; 53041da177e4SLinus Torvalds status = decode_putfh(&xdr); 53051da177e4SLinus Torvalds if (status) 53061da177e4SLinus Torvalds goto out; 53071da177e4SLinus Torvalds status = decode_readdir(&xdr, rqstp, res); 53081da177e4SLinus Torvalds out: 53091da177e4SLinus Torvalds return status; 53101da177e4SLinus Torvalds } 53111da177e4SLinus Torvalds 53121da177e4SLinus Torvalds /* 53131da177e4SLinus Torvalds * Decode Read response 53141da177e4SLinus Torvalds */ 53158687b63aSAl Viro static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, __be32 *p, struct nfs_readres *res) 53161da177e4SLinus Torvalds { 53171da177e4SLinus Torvalds struct xdr_stream xdr; 53181da177e4SLinus Torvalds struct compound_hdr hdr; 53191da177e4SLinus Torvalds int status; 53201da177e4SLinus Torvalds 53211da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53221da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53231da177e4SLinus Torvalds if (status) 53241da177e4SLinus Torvalds goto out; 53259b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53269b7b9fccSAndy Adamson if (status) 53279b7b9fccSAndy Adamson goto out; 53281da177e4SLinus Torvalds status = decode_putfh(&xdr); 53291da177e4SLinus Torvalds if (status) 53301da177e4SLinus Torvalds goto out; 53311da177e4SLinus Torvalds status = decode_read(&xdr, rqstp, res); 53321da177e4SLinus Torvalds if (!status) 53331da177e4SLinus Torvalds status = res->count; 53341da177e4SLinus Torvalds out: 53351da177e4SLinus Torvalds return status; 53361da177e4SLinus Torvalds } 53371da177e4SLinus Torvalds 53381da177e4SLinus Torvalds /* 53391da177e4SLinus Torvalds * Decode WRITE response 53401da177e4SLinus Torvalds */ 53418687b63aSAl Viro static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 53421da177e4SLinus Torvalds { 53431da177e4SLinus Torvalds struct xdr_stream xdr; 53441da177e4SLinus Torvalds struct compound_hdr hdr; 53451da177e4SLinus Torvalds int status; 53461da177e4SLinus Torvalds 53471da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53481da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53491da177e4SLinus Torvalds if (status) 53501da177e4SLinus Torvalds goto out; 53519b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53529b7b9fccSAndy Adamson if (status) 53539b7b9fccSAndy Adamson goto out; 53541da177e4SLinus Torvalds status = decode_putfh(&xdr); 53551da177e4SLinus Torvalds if (status) 53561da177e4SLinus Torvalds goto out; 53571da177e4SLinus Torvalds status = decode_write(&xdr, res); 53584f9838c7STrond Myklebust if (status) 53594f9838c7STrond Myklebust goto out; 536080e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 536180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53621da177e4SLinus Torvalds if (!status) 53631da177e4SLinus Torvalds status = res->count; 53641da177e4SLinus Torvalds out: 53651da177e4SLinus Torvalds return status; 53661da177e4SLinus Torvalds } 53671da177e4SLinus Torvalds 53681da177e4SLinus Torvalds /* 53691da177e4SLinus Torvalds * Decode COMMIT response 53701da177e4SLinus Torvalds */ 53718687b63aSAl Viro static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, __be32 *p, struct nfs_writeres *res) 53721da177e4SLinus Torvalds { 53731da177e4SLinus Torvalds struct xdr_stream xdr; 53741da177e4SLinus Torvalds struct compound_hdr hdr; 53751da177e4SLinus Torvalds int status; 53761da177e4SLinus Torvalds 53771da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 53781da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 53791da177e4SLinus Torvalds if (status) 53801da177e4SLinus Torvalds goto out; 53819b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 53829b7b9fccSAndy Adamson if (status) 53839b7b9fccSAndy Adamson goto out; 53841da177e4SLinus Torvalds status = decode_putfh(&xdr); 53851da177e4SLinus Torvalds if (status) 53861da177e4SLinus Torvalds goto out; 53871da177e4SLinus Torvalds status = decode_commit(&xdr, res); 53884f9838c7STrond Myklebust if (status) 53894f9838c7STrond Myklebust goto out; 539080e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 539180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53921da177e4SLinus Torvalds out: 53931da177e4SLinus Torvalds return status; 53941da177e4SLinus Torvalds } 53951da177e4SLinus Torvalds 53961da177e4SLinus Torvalds /* 53978b173218SRicardo Labiaga * Decode FSINFO response 53981da177e4SLinus Torvalds */ 53993dda5e43SBenny Halevy static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, __be32 *p, 54003dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 54011da177e4SLinus Torvalds { 54021da177e4SLinus Torvalds struct xdr_stream xdr; 54031da177e4SLinus Torvalds struct compound_hdr hdr; 54041da177e4SLinus Torvalds int status; 54051da177e4SLinus Torvalds 54061da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54071da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54081da177e4SLinus Torvalds if (!status) 54099b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54109b7b9fccSAndy Adamson if (!status) 54111da177e4SLinus Torvalds status = decode_putfh(&xdr); 54121da177e4SLinus Torvalds if (!status) 54133dda5e43SBenny Halevy status = decode_fsinfo(&xdr, res->fsinfo); 54141da177e4SLinus Torvalds return status; 54151da177e4SLinus Torvalds } 54161da177e4SLinus Torvalds 54171da177e4SLinus Torvalds /* 54188b173218SRicardo Labiaga * Decode PATHCONF response 54191da177e4SLinus Torvalds */ 5420d45b2989SBenny Halevy static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, __be32 *p, 5421d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 54221da177e4SLinus Torvalds { 54231da177e4SLinus Torvalds struct xdr_stream xdr; 54241da177e4SLinus Torvalds struct compound_hdr hdr; 54251da177e4SLinus Torvalds int status; 54261da177e4SLinus Torvalds 54271da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54281da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54291da177e4SLinus Torvalds if (!status) 54309b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54319b7b9fccSAndy Adamson if (!status) 54321da177e4SLinus Torvalds status = decode_putfh(&xdr); 54331da177e4SLinus Torvalds if (!status) 5434d45b2989SBenny Halevy status = decode_pathconf(&xdr, res->pathconf); 54351da177e4SLinus Torvalds return status; 54361da177e4SLinus Torvalds } 54371da177e4SLinus Torvalds 54381da177e4SLinus Torvalds /* 54398b173218SRicardo Labiaga * Decode STATFS response 54401da177e4SLinus Torvalds */ 544124ad148aSBenny Halevy static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, __be32 *p, 544224ad148aSBenny Halevy struct nfs4_statfs_res *res) 54431da177e4SLinus Torvalds { 54441da177e4SLinus Torvalds struct xdr_stream xdr; 54451da177e4SLinus Torvalds struct compound_hdr hdr; 54461da177e4SLinus Torvalds int status; 54471da177e4SLinus Torvalds 54481da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54491da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54501da177e4SLinus Torvalds if (!status) 54519b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54529b7b9fccSAndy Adamson if (!status) 54531da177e4SLinus Torvalds status = decode_putfh(&xdr); 54541da177e4SLinus Torvalds if (!status) 545524ad148aSBenny Halevy status = decode_statfs(&xdr, res->fsstat); 54561da177e4SLinus Torvalds return status; 54571da177e4SLinus Torvalds } 54581da177e4SLinus Torvalds 54591da177e4SLinus Torvalds /* 54608b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 54611da177e4SLinus Torvalds */ 54628687b63aSAl Viro static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, __be32 *p, struct nfs4_server_caps_res *res) 54631da177e4SLinus Torvalds { 54641da177e4SLinus Torvalds struct xdr_stream xdr; 54651da177e4SLinus Torvalds struct compound_hdr hdr; 54661da177e4SLinus Torvalds int status; 54671da177e4SLinus Torvalds 54681da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 54699b7b9fccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 54709b7b9fccSAndy Adamson if (status) 54719b7b9fccSAndy Adamson goto out; 54729b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 54739b7b9fccSAndy Adamson if (status) 54741da177e4SLinus Torvalds goto out; 54751da177e4SLinus Torvalds if ((status = decode_putfh(&xdr)) != 0) 54761da177e4SLinus Torvalds goto out; 54771da177e4SLinus Torvalds status = decode_server_caps(&xdr, res); 54781da177e4SLinus Torvalds out: 54791da177e4SLinus Torvalds return status; 54801da177e4SLinus Torvalds } 54811da177e4SLinus Torvalds 54821da177e4SLinus Torvalds /* 54831da177e4SLinus Torvalds * Decode RENEW response 54841da177e4SLinus Torvalds */ 54858687b63aSAl Viro static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, __be32 *p, void *dummy) 54861da177e4SLinus Torvalds { 54871da177e4SLinus Torvalds struct xdr_stream xdr; 54881da177e4SLinus Torvalds struct compound_hdr hdr; 54891da177e4SLinus Torvalds int status; 54901da177e4SLinus Torvalds 54911da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 54921da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 54931da177e4SLinus Torvalds if (!status) 54941da177e4SLinus Torvalds status = decode_renew(&xdr); 54951da177e4SLinus Torvalds return status; 54961da177e4SLinus Torvalds } 54971da177e4SLinus Torvalds 54981da177e4SLinus Torvalds /* 54998b173218SRicardo Labiaga * Decode SETCLIENTID response 55001da177e4SLinus Torvalds */ 55018687b63aSAl Viro static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, __be32 *p, 5502adfa6f98SDavid Howells struct nfs_client *clp) 55031da177e4SLinus Torvalds { 55041da177e4SLinus Torvalds struct xdr_stream xdr; 55051da177e4SLinus Torvalds struct compound_hdr hdr; 55061da177e4SLinus Torvalds int status; 55071da177e4SLinus Torvalds 55081da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55091da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55101da177e4SLinus Torvalds if (!status) 55111da177e4SLinus Torvalds status = decode_setclientid(&xdr, clp); 55121da177e4SLinus Torvalds return status; 55131da177e4SLinus Torvalds } 55141da177e4SLinus Torvalds 55151da177e4SLinus Torvalds /* 55168b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 55171da177e4SLinus Torvalds */ 55188687b63aSAl Viro static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, __be32 *p, struct nfs_fsinfo *fsinfo) 55191da177e4SLinus Torvalds { 55201da177e4SLinus Torvalds struct xdr_stream xdr; 55211da177e4SLinus Torvalds struct compound_hdr hdr; 55221da177e4SLinus Torvalds int status; 55231da177e4SLinus Torvalds 55241da177e4SLinus Torvalds xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 55251da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55261da177e4SLinus Torvalds if (!status) 55271da177e4SLinus Torvalds status = decode_setclientid_confirm(&xdr); 55281da177e4SLinus Torvalds if (!status) 55291da177e4SLinus Torvalds status = decode_putrootfh(&xdr); 55301da177e4SLinus Torvalds if (!status) 55311da177e4SLinus Torvalds status = decode_fsinfo(&xdr, fsinfo); 55321da177e4SLinus Torvalds return status; 55331da177e4SLinus Torvalds } 55341da177e4SLinus Torvalds 55351da177e4SLinus Torvalds /* 55368b173218SRicardo Labiaga * Decode DELEGRETURN response 55371da177e4SLinus Torvalds */ 55388687b63aSAl Viro static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, __be32 *p, struct nfs4_delegreturnres *res) 55391da177e4SLinus Torvalds { 55401da177e4SLinus Torvalds struct xdr_stream xdr; 55411da177e4SLinus Torvalds struct compound_hdr hdr; 55421da177e4SLinus Torvalds int status; 55431da177e4SLinus Torvalds 55441da177e4SLinus Torvalds xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 55451da177e4SLinus Torvalds status = decode_compound_hdr(&xdr, &hdr); 55469b7b9fccSAndy Adamson if (status) 55479b7b9fccSAndy Adamson goto out; 55489b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, rqstp); 55499b7b9fccSAndy Adamson if (status) 5550fa178f29STrond Myklebust goto out; 55511da177e4SLinus Torvalds status = decode_putfh(&xdr); 5552fa178f29STrond Myklebust if (status != 0) 5553fa178f29STrond Myklebust goto out; 55541da177e4SLinus Torvalds status = decode_delegreturn(&xdr); 5555556ae3bbSJeff Layton if (status != 0) 5556556ae3bbSJeff Layton goto out; 555780e52aceSTrond Myklebust decode_getfattr(&xdr, res->fattr, res->server, 555880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 5559fa178f29STrond Myklebust out: 55601da177e4SLinus Torvalds return status; 55611da177e4SLinus Torvalds } 55621da177e4SLinus Torvalds 5563683b57b4STrond Myklebust /* 55648b173218SRicardo Labiaga * Decode FS_LOCATIONS response 5565683b57b4STrond Myklebust */ 556622958463SBenny Halevy static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, __be32 *p, 556722958463SBenny Halevy struct nfs4_fs_locations_res *res) 5568683b57b4STrond Myklebust { 5569683b57b4STrond Myklebust struct xdr_stream xdr; 5570683b57b4STrond Myklebust struct compound_hdr hdr; 5571683b57b4STrond Myklebust int status; 5572683b57b4STrond Myklebust 5573683b57b4STrond Myklebust xdr_init_decode(&xdr, &req->rq_rcv_buf, p); 5574683b57b4STrond Myklebust status = decode_compound_hdr(&xdr, &hdr); 55759b7b9fccSAndy Adamson if (status) 55769b7b9fccSAndy Adamson goto out; 55779b7b9fccSAndy Adamson status = decode_sequence(&xdr, &res->seq_res, req); 55789b7b9fccSAndy Adamson if (status) 5579683b57b4STrond Myklebust goto out; 5580683b57b4STrond Myklebust if ((status = decode_putfh(&xdr)) != 0) 5581683b57b4STrond Myklebust goto out; 5582683b57b4STrond Myklebust if ((status = decode_lookup(&xdr)) != 0) 5583683b57b4STrond Myklebust goto out; 5584683b57b4STrond Myklebust xdr_enter_page(&xdr, PAGE_SIZE); 558522958463SBenny Halevy status = decode_getfattr(&xdr, &res->fs_locations->fattr, 558680e52aceSTrond Myklebust res->fs_locations->server, 558780e52aceSTrond Myklebust !RPC_IS_ASYNC(req->rq_task)); 5588683b57b4STrond Myklebust out: 5589683b57b4STrond Myklebust return status; 5590683b57b4STrond Myklebust } 5591683b57b4STrond Myklebust 559299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 559399fe60d0SBenny Halevy /* 55948b173218SRicardo Labiaga * Decode EXCHANGE_ID response 559599fe60d0SBenny Halevy */ 559699fe60d0SBenny Halevy static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, uint32_t *p, 559799fe60d0SBenny Halevy void *res) 559899fe60d0SBenny Halevy { 559999fe60d0SBenny Halevy struct xdr_stream xdr; 560099fe60d0SBenny Halevy struct compound_hdr hdr; 560199fe60d0SBenny Halevy int status; 560299fe60d0SBenny Halevy 560399fe60d0SBenny Halevy xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 560499fe60d0SBenny Halevy status = decode_compound_hdr(&xdr, &hdr); 560599fe60d0SBenny Halevy if (!status) 560699fe60d0SBenny Halevy status = decode_exchange_id(&xdr, res); 560799fe60d0SBenny Halevy return status; 560899fe60d0SBenny Halevy } 56092050f0ccSAndy Adamson 56102050f0ccSAndy Adamson /* 56118b173218SRicardo Labiaga * Decode CREATE_SESSION response 5612fc931582SAndy Adamson */ 5613fc931582SAndy Adamson static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, uint32_t *p, 5614fc931582SAndy Adamson struct nfs41_create_session_res *res) 5615fc931582SAndy Adamson { 5616fc931582SAndy Adamson struct xdr_stream xdr; 5617fc931582SAndy Adamson struct compound_hdr hdr; 5618fc931582SAndy Adamson int status; 5619fc931582SAndy Adamson 5620fc931582SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5621fc931582SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5622fc931582SAndy Adamson if (!status) 5623fc931582SAndy Adamson status = decode_create_session(&xdr, res); 5624fc931582SAndy Adamson return status; 5625fc931582SAndy Adamson } 5626fc931582SAndy Adamson 5627fc931582SAndy Adamson /* 56288b173218SRicardo Labiaga * Decode DESTROY_SESSION response 56290f3e66c6SAndy Adamson */ 56300f3e66c6SAndy Adamson static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, uint32_t *p, 56310f3e66c6SAndy Adamson void *dummy) 56320f3e66c6SAndy Adamson { 56330f3e66c6SAndy Adamson struct xdr_stream xdr; 56340f3e66c6SAndy Adamson struct compound_hdr hdr; 56350f3e66c6SAndy Adamson int status; 56360f3e66c6SAndy Adamson 56370f3e66c6SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56380f3e66c6SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 56390f3e66c6SAndy Adamson if (!status) 56400f3e66c6SAndy Adamson status = decode_destroy_session(&xdr, dummy); 56410f3e66c6SAndy Adamson return status; 56420f3e66c6SAndy Adamson } 56430f3e66c6SAndy Adamson 56440f3e66c6SAndy Adamson /* 56458b173218SRicardo Labiaga * Decode SEQUENCE response 5646fc01cea9SAndy Adamson */ 5647fc01cea9SAndy Adamson static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, uint32_t *p, 5648fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 5649fc01cea9SAndy Adamson { 5650fc01cea9SAndy Adamson struct xdr_stream xdr; 5651fc01cea9SAndy Adamson struct compound_hdr hdr; 5652fc01cea9SAndy Adamson int status; 5653fc01cea9SAndy Adamson 5654fc01cea9SAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 5655fc01cea9SAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 5656fc01cea9SAndy Adamson if (!status) 5657fc01cea9SAndy Adamson status = decode_sequence(&xdr, res, rqstp); 5658fc01cea9SAndy Adamson return status; 5659fc01cea9SAndy Adamson } 5660fc01cea9SAndy Adamson 5661fc01cea9SAndy Adamson /* 56628b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 56632050f0ccSAndy Adamson */ 56642050f0ccSAndy Adamson static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, uint32_t *p, 56652050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 56662050f0ccSAndy Adamson { 56672050f0ccSAndy Adamson struct xdr_stream xdr; 56682050f0ccSAndy Adamson struct compound_hdr hdr; 56692050f0ccSAndy Adamson int status; 56702050f0ccSAndy Adamson 56712050f0ccSAndy Adamson xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 56722050f0ccSAndy Adamson status = decode_compound_hdr(&xdr, &hdr); 56732050f0ccSAndy Adamson if (!status) 56742050f0ccSAndy Adamson status = decode_sequence(&xdr, &res->lr_seq_res, rqstp); 56752050f0ccSAndy Adamson if (!status) 56762050f0ccSAndy Adamson status = decode_putrootfh(&xdr); 56772050f0ccSAndy Adamson if (!status) 56782050f0ccSAndy Adamson status = decode_fsinfo(&xdr, res->lr_fsinfo); 56792050f0ccSAndy Adamson return status; 56802050f0ccSAndy Adamson } 568118019753SRicardo Labiaga 568218019753SRicardo Labiaga /* 568318019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 568418019753SRicardo Labiaga */ 568518019753SRicardo Labiaga static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, uint32_t *p, 568618019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 568718019753SRicardo Labiaga { 568818019753SRicardo Labiaga struct xdr_stream xdr; 568918019753SRicardo Labiaga struct compound_hdr hdr; 569018019753SRicardo Labiaga int status; 569118019753SRicardo Labiaga 569218019753SRicardo Labiaga xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); 569318019753SRicardo Labiaga status = decode_compound_hdr(&xdr, &hdr); 569418019753SRicardo Labiaga if (!status) 569518019753SRicardo Labiaga status = decode_sequence(&xdr, &res->seq_res, rqstp); 569618019753SRicardo Labiaga if (!status) 569718019753SRicardo Labiaga status = decode_reclaim_complete(&xdr, (void *)NULL); 569818019753SRicardo Labiaga return status; 569918019753SRicardo Labiaga } 570099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 570199fe60d0SBenny Halevy 57020dbb4c67SAl Viro __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus) 57031da177e4SLinus Torvalds { 57041da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 57051da177e4SLinus Torvalds uint32_t len; 57061da177e4SLinus Torvalds 57071da177e4SLinus Torvalds if (!*p++) { 57081da177e4SLinus Torvalds if (!*p) 57091da177e4SLinus Torvalds return ERR_PTR(-EAGAIN); 57101da177e4SLinus Torvalds entry->eof = 1; 57111da177e4SLinus Torvalds return ERR_PTR(-EBADCOOKIE); 57121da177e4SLinus Torvalds } 57131da177e4SLinus Torvalds 57141da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 57151da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 57161da177e4SLinus Torvalds entry->len = ntohl(*p++); 57171da177e4SLinus Torvalds entry->name = (const char *) p; 57181da177e4SLinus Torvalds p += XDR_QUADLEN(entry->len); 57191da177e4SLinus Torvalds 57201da177e4SLinus Torvalds /* 57211da177e4SLinus Torvalds * In case the server doesn't return an inode number, 57221da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 57231da177e4SLinus Torvalds * since glibc seems to choke on it...) 57241da177e4SLinus Torvalds */ 57251da177e4SLinus Torvalds entry->ino = 1; 57261da177e4SLinus Torvalds 57271da177e4SLinus Torvalds len = ntohl(*p++); /* bitmap length */ 57281da177e4SLinus Torvalds if (len-- > 0) { 57291da177e4SLinus Torvalds bitmap[0] = ntohl(*p++); 57301da177e4SLinus Torvalds if (len-- > 0) { 57311da177e4SLinus Torvalds bitmap[1] = ntohl(*p++); 57321da177e4SLinus Torvalds p += len; 57331da177e4SLinus Torvalds } 57341da177e4SLinus Torvalds } 57351da177e4SLinus Torvalds len = XDR_QUADLEN(ntohl(*p++)); /* attribute buffer length */ 57361da177e4SLinus Torvalds if (len > 0) { 573797d312d0SManoj Naik if (bitmap[0] & FATTR4_WORD0_RDATTR_ERROR) { 573897d312d0SManoj Naik bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 573997d312d0SManoj Naik /* Ignore the return value of rdattr_error for now */ 574097d312d0SManoj Naik p++; 574197d312d0SManoj Naik len--; 574297d312d0SManoj Naik } 57431da177e4SLinus Torvalds if (bitmap[0] == 0 && bitmap[1] == FATTR4_WORD1_MOUNTED_ON_FILEID) 57441da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 57451da177e4SLinus Torvalds else if (bitmap[0] == FATTR4_WORD0_FILEID) 57461da177e4SLinus Torvalds xdr_decode_hyper(p, &entry->ino); 57471da177e4SLinus Torvalds p += len; 57481da177e4SLinus Torvalds } 57491da177e4SLinus Torvalds 57501da177e4SLinus Torvalds entry->eof = !p[0] && p[1]; 57511da177e4SLinus Torvalds return p; 57521da177e4SLinus Torvalds } 57531da177e4SLinus Torvalds 57541da177e4SLinus Torvalds /* 57551da177e4SLinus Torvalds * We need to translate between nfs status return values and 57561da177e4SLinus Torvalds * the local errno values which may not be the same. 57571da177e4SLinus Torvalds */ 57581da177e4SLinus Torvalds static struct { 57591da177e4SLinus Torvalds int stat; 57601da177e4SLinus Torvalds int errno; 57611da177e4SLinus Torvalds } nfs_errtbl[] = { 57621da177e4SLinus Torvalds { NFS4_OK, 0 }, 5763856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 5764856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 5765856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 5766856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 5767856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 5768856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 5769856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 5770856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 5771856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 5772856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 5773856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 5774856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 5775856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 5776856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 5777856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 5778856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 5779856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 5780856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 5781856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 5782856dff3dSBenny Halevy { NFS4ERR_BADOWNER, -EINVAL }, 5783856dff3dSBenny Halevy { NFS4ERR_BADNAME, -EINVAL }, 5784856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 5785856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 5786856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 5787fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 5788856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 5789856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 5790856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 5791856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 5792856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 5793856dff3dSBenny Halevy { NFS4ERR_WRONGSEC, -EPERM }, /* FIXME: this needs 57941da177e4SLinus Torvalds * to be handled by a 57951da177e4SLinus Torvalds * middle-layer. 57961da177e4SLinus Torvalds */ 5797856dff3dSBenny Halevy { -1, -EIO } 57981da177e4SLinus Torvalds }; 57991da177e4SLinus Torvalds 58001da177e4SLinus Torvalds /* 58011da177e4SLinus Torvalds * Convert an NFS error code to a local one. 58021da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 58031da177e4SLinus Torvalds */ 58041da177e4SLinus Torvalds static int 58050a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 58061da177e4SLinus Torvalds { 58071da177e4SLinus Torvalds int i; 58081da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 58091da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 58101da177e4SLinus Torvalds return nfs_errtbl[i].errno; 58111da177e4SLinus Torvalds } 58121da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 58131da177e4SLinus Torvalds /* The server is looney tunes. */ 5814fdcb4577STrond Myklebust return -EREMOTEIO; 58151da177e4SLinus Torvalds } 58161da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 58171da177e4SLinus Torvalds * handle it. 58181da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 58191da177e4SLinus Torvalds * not conflict with native Linux error codes. 58201da177e4SLinus Torvalds */ 5821856dff3dSBenny Halevy return -stat; 58221da177e4SLinus Torvalds } 58231da177e4SLinus Torvalds 58241da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 58251da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 58261da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 58271da177e4SLinus Torvalds .p_encode = (kxdrproc_t) nfs4_xdr_##argtype, \ 58281da177e4SLinus Torvalds .p_decode = (kxdrproc_t) nfs4_xdr_##restype, \ 58292bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 58302bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 5831cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 5832cc0175c1SChuck Lever .p_name = #proc, \ 58331da177e4SLinus Torvalds } 58341da177e4SLinus Torvalds 58351da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 58361da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 58371da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 58381da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 58391da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 58401da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 58411da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 58421da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 58431da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 58441da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 58451da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 58461da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 58471da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 58481da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 58491da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 58501da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 58511da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 58521da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 58531da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 58541da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 58551da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 58561da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 58571da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 58581da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 58591da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 58601da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 58611da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 58621da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 58631da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 58641da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 58651da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 58661da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 5867029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 586823ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 5869683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 587099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 587199fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 5872fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 58730f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 5874fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 58752050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 587618019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 587799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 58781da177e4SLinus Torvalds }; 58791da177e4SLinus Torvalds 58801da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 58811da177e4SLinus Torvalds .number = 4, 5882e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 58831da177e4SLinus Torvalds .procs = nfs4_procedures 58841da177e4SLinus Torvalds }; 58851da177e4SLinus Torvalds 58861da177e4SLinus Torvalds /* 58871da177e4SLinus Torvalds * Local variables: 58881da177e4SLinus Torvalds * c-basic-offset: 8 58891da177e4SLinus Torvalds * End: 58901da177e4SLinus Torvalds */ 5891