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/errno.h> 421da177e4SLinus Torvalds #include <linux/string.h> 431da177e4SLinus Torvalds #include <linux/in.h> 441da177e4SLinus Torvalds #include <linux/pagemap.h> 451da177e4SLinus Torvalds #include <linux/proc_fs.h> 461da177e4SLinus Torvalds #include <linux/kdev_t.h> 471da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 482449ea2eSAlexandros Batsakis #include <linux/sunrpc/msg_prot.h> 495a5ea0d4SBryan Schumaker #include <linux/sunrpc/gss_api.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" 56b1f69b75SAndy Adamson #include "pnfs.h" 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 591da177e4SLinus Torvalds 601da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 611da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 621da177e4SLinus Torvalds 630a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 641da177e4SLinus Torvalds 651da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 661da177e4SLinus Torvalds #ifdef DEBUG 671da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 681da177e4SLinus Torvalds #else 691da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 701da177e4SLinus Torvalds #endif 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds /* lock,open owner id: 739f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 741da177e4SLinus Torvalds */ 75d035c36cSTrond Myklebust #define open_owner_id_maxsz (1 + 1 + 4) 76d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 1 + 4) 779104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 781da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 791da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 801da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 811da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 829104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 839104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 849104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 859104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 861da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 871da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 881da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 891da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 901da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 911da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 921da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 931da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 9496928206SJ. Bruce Fields #define nfs4_fattr_bitmap_maxsz 3 9596928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 961da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 971da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 98bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 99bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 10096928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 10196928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 102bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10396928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10496928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10596928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1069104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1079104a55dSTrond Myklebust 1 + 2 + 1 + \ 1089104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1099104a55dSTrond Myklebust nfs4_group_maxsz + \ 1109104a55dSTrond Myklebust 4 + 4) 1111da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1121da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11356ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11456ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1152f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 1167ebb9315SBryan Schumaker #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + 15) 1171da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1181da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1191da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1201da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 121cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 122cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 123cc38bac3SChuck Lever 1 /* sc_prog */ + \ 124cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 125cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 126cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1271da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1281da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1291da177e4SLinus Torvalds 2 + \ 1301da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1311da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1321da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1331da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1341da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1351da177e4SLinus Torvalds (op_decode_hdr_maxsz) 136e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 137e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1382cebf828STrond Myklebust #define encode_share_access_maxsz \ 1392cebf828STrond Myklebust (2) 1404882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1412cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1422cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1432cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1442cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1452cebf828STrond Myklebust open_owner_id_maxsz + \ 1462cebf828STrond Myklebust encode_opentype_maxsz + \ 1472cebf828STrond Myklebust encode_claim_null_maxsz) 1482cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1499104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1502cebf828STrond Myklebust decode_ace_maxsz) 1512cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1522cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1539104a55dSTrond Myklebust decode_stateid_maxsz + \ 1542cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1552cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1562cebf828STrond Myklebust decode_delegation_maxsz) 1579104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1589104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1599104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1609104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1619104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1629104a55dSTrond Myklebust decode_stateid_maxsz) 1639104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1649104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1659104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1669104a55dSTrond Myklebust encode_share_access_maxsz) 1679104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1689104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1699104a55dSTrond Myklebust decode_stateid_maxsz) 1709104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1719104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1729104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1739104a55dSTrond Myklebust decode_stateid_maxsz) 1749104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1759104a55dSTrond Myklebust encode_stateid_maxsz + \ 1769104a55dSTrond Myklebust encode_attrs_maxsz) 1779104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1789104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1799104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1809104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1819104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1829104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1839104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1849104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1859104a55dSTrond Myklebust decode_verifier_maxsz) 1869104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1879104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1889104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1899104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1909104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1919104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1929104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1939104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1949104a55dSTrond Myklebust decode_verifier_maxsz) 1951da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 1961da177e4SLinus Torvalds nfs4_name_maxsz) 1976ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 1986ce18391SBenny Halevy decode_change_info_maxsz) 1991da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2001da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2016ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2026ce18391SBenny Halevy decode_change_info_maxsz + \ 2036ce18391SBenny Halevy decode_change_info_maxsz) 2041da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2051da177e4SLinus Torvalds nfs4_name_maxsz) 2066ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 207daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2089104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2099104a55dSTrond Myklebust 7 + \ 210daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 211daccbdedSTrond Myklebust encode_lockowner_maxsz) 2129104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2139104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2149104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2159104a55dSTrond Myklebust decode_lock_denied_maxsz) 216daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 217daccbdedSTrond Myklebust encode_lockowner_maxsz) 2189104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2199104a55dSTrond Myklebust decode_lock_denied_maxsz) 2209104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2219104a55dSTrond Myklebust encode_stateid_maxsz + \ 2229104a55dSTrond Myklebust 4) 2239104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2249104a55dSTrond Myklebust decode_stateid_maxsz) 225d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 226d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 227d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 228d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 229d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2309104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2319104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2321da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2331da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 23494a6d753SChuck Lever 1 + \ 23596928206SJ. Bruce Fields nfs4_fattr_maxsz) 2361da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2371da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2389104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2399104a55dSTrond Myklebust encode_attrs_maxsz) 2402cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2412cebf828STrond Myklebust decode_change_info_maxsz + \ 2422cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2439104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2449104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2451da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2461da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2479104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2489104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2499104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2509104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2519104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2529104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 253e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 254e6889620STrond Myklebust (encode_getattr_maxsz) 255e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 256e6889620STrond Myklebust (0) 2575a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2585a5ea0d4SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 4 + (NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN))) 2599b7b9fccSAndy Adamson 2609b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 261fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 262fc931582SAndy Adamson 26399fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 26499fe60d0SBenny Halevy encode_verifier_maxsz + \ 26599fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 26699fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 26799fe60d0SBenny Halevy 1 /* flags */ + \ 26899fe60d0SBenny Halevy 1 /* spa_how */ + \ 26999fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 27099fe60d0SBenny Halevy 1 /* zero implemetation id array */) 27199fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 27299fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 27399fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 27499fe60d0SBenny Halevy 1 /* eir_flags */ + \ 27599fe60d0SBenny Halevy 1 /* spr_how */ + \ 27699fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 27799fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 27899fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 27999fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 28099fe60d0SBenny Halevy /* eir_server_scope<> */ \ 28199fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 28299fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 28399fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 284fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 285fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 286fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 287fc931582SAndy Adamson 1 /* ca_rdma_ird */) 288fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 289fc931582SAndy Adamson 2 /* csa_clientid */ + \ 290fc931582SAndy Adamson 1 /* csa_sequence */ + \ 291fc931582SAndy Adamson 1 /* csa_flags */ + \ 292fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 293fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 294fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 295fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 296fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 297fc931582SAndy Adamson 1 /* stamp */ + \ 298fc931582SAndy Adamson 1 /* machinename.len */ + \ 299fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 300fc931582SAndy Adamson 1 /* uid */ + \ 301fc931582SAndy Adamson 1 /* gid */ + \ 302fc931582SAndy Adamson 1 /* gids.len (0) */) 303fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 304fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 305fc931582SAndy Adamson 1 /* csr_sequence */ + \ 306fc931582SAndy Adamson 1 /* csr_flags */ + \ 307fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 308fc931582SAndy Adamson decode_channel_attrs_maxsz) 3090f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3100f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 311fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 312fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 313fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 314fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 31518019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 31618019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 317b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 318b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 319b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 320b1f69b75SAndy Adamson 1 /* layout type */ + \ 321b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 322b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 323b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 324b1f69b75SAndy Adamson 1 /* notification bitmap */) 325b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 326b1f69b75SAndy Adamson encode_stateid_maxsz) 327b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 328b1f69b75SAndy Adamson decode_stateid_maxsz + \ 329b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 330863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 331863a3c6cSAndy Adamson 2 /* offset */ + \ 332863a3c6cSAndy Adamson 2 /* length */ + \ 333863a3c6cSAndy Adamson 1 /* reclaim */ + \ 334863a3c6cSAndy Adamson encode_stateid_maxsz + \ 335863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 336863a3c6cSAndy Adamson 2 /* last byte written */ + \ 337863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 338863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 339863a3c6cSAndy Adamson 1 /* NULL filelayout layoutupdate4 payload */) 340863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 341863a3c6cSAndy Adamson 3429b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3439b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3449b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3459b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3469b7b9fccSAndy Adamson 3471da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3481da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3491da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3509b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3511da177e4SLinus Torvalds encode_putfh_maxsz + \ 3529104a55dSTrond Myklebust encode_read_maxsz) 3531da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3549b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3551da177e4SLinus Torvalds decode_putfh_maxsz + \ 3569104a55dSTrond Myklebust decode_read_maxsz) 3571da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3589b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3591da177e4SLinus Torvalds encode_putfh_maxsz + \ 3609104a55dSTrond Myklebust encode_readlink_maxsz) 3611da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3629b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3631da177e4SLinus Torvalds decode_putfh_maxsz + \ 3649104a55dSTrond Myklebust decode_readlink_maxsz) 3651da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3669b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3671da177e4SLinus Torvalds encode_putfh_maxsz + \ 3689104a55dSTrond Myklebust encode_readdir_maxsz) 3691da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3709b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3711da177e4SLinus Torvalds decode_putfh_maxsz + \ 3729104a55dSTrond Myklebust decode_readdir_maxsz) 3731da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 3749b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3751da177e4SLinus Torvalds encode_putfh_maxsz + \ 3769104a55dSTrond Myklebust encode_write_maxsz + \ 3774f9838c7STrond Myklebust encode_getattr_maxsz) 3781da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 3799b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3801da177e4SLinus Torvalds decode_putfh_maxsz + \ 3819104a55dSTrond Myklebust decode_write_maxsz + \ 3824f9838c7STrond Myklebust decode_getattr_maxsz) 3831da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 3849b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3851da177e4SLinus Torvalds encode_putfh_maxsz + \ 3869104a55dSTrond Myklebust encode_commit_maxsz + \ 3874f9838c7STrond Myklebust encode_getattr_maxsz) 3881da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 3899b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3901da177e4SLinus Torvalds decode_putfh_maxsz + \ 3919104a55dSTrond Myklebust decode_commit_maxsz + \ 3924f9838c7STrond Myklebust decode_getattr_maxsz) 3931da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 3949b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3951da177e4SLinus Torvalds encode_putfh_maxsz + \ 3962cebf828STrond Myklebust encode_savefh_maxsz + \ 3972cebf828STrond Myklebust encode_open_maxsz + \ 3982cebf828STrond Myklebust encode_getfh_maxsz + \ 3991da177e4SLinus Torvalds encode_getattr_maxsz + \ 4002cebf828STrond Myklebust encode_restorefh_maxsz + \ 4012cebf828STrond Myklebust encode_getattr_maxsz) 4021da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4039b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4041da177e4SLinus Torvalds decode_putfh_maxsz + \ 4052cebf828STrond Myklebust decode_savefh_maxsz + \ 4062cebf828STrond Myklebust decode_open_maxsz + \ 4072cebf828STrond Myklebust decode_getfh_maxsz + \ 4081da177e4SLinus Torvalds decode_getattr_maxsz + \ 4092cebf828STrond Myklebust decode_restorefh_maxsz + \ 4102cebf828STrond Myklebust decode_getattr_maxsz) 4111da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4121da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4131da177e4SLinus Torvalds encode_putfh_maxsz + \ 4149104a55dSTrond Myklebust encode_open_confirm_maxsz) 4159104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4169104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4171da177e4SLinus Torvalds decode_putfh_maxsz + \ 4189104a55dSTrond Myklebust decode_open_confirm_maxsz) 4191da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4209b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4211da177e4SLinus Torvalds encode_putfh_maxsz + \ 4222cebf828STrond Myklebust encode_open_maxsz + \ 4232cebf828STrond Myklebust encode_getattr_maxsz) 4241da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4261da177e4SLinus Torvalds decode_putfh_maxsz + \ 4272cebf828STrond Myklebust decode_open_maxsz + \ 4282cebf828STrond Myklebust decode_getattr_maxsz) 4291da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4301da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4319b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4321da177e4SLinus Torvalds encode_putfh_maxsz + \ 4339104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 434516a6af6STrond Myklebust encode_getattr_maxsz) 4351da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4361da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4381da177e4SLinus Torvalds decode_putfh_maxsz + \ 4399104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 440516a6af6STrond Myklebust decode_getattr_maxsz) 4411da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4429b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4431da177e4SLinus Torvalds encode_putfh_maxsz + \ 4449104a55dSTrond Myklebust encode_close_maxsz + \ 445516a6af6STrond Myklebust encode_getattr_maxsz) 4461da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4479b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4481da177e4SLinus Torvalds decode_putfh_maxsz + \ 4499104a55dSTrond Myklebust decode_close_maxsz + \ 450516a6af6STrond Myklebust decode_getattr_maxsz) 4511da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4529b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4531da177e4SLinus Torvalds encode_putfh_maxsz + \ 4549104a55dSTrond Myklebust encode_setattr_maxsz + \ 4551da177e4SLinus Torvalds encode_getattr_maxsz) 4561da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4579b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4581da177e4SLinus Torvalds decode_putfh_maxsz + \ 4599104a55dSTrond Myklebust decode_setattr_maxsz + \ 4609104a55dSTrond Myklebust decode_getattr_maxsz) 4611da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4629b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4631da177e4SLinus Torvalds encode_putfh_maxsz + \ 4641da177e4SLinus Torvalds encode_fsinfo_maxsz) 4651da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4669b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4671da177e4SLinus Torvalds decode_putfh_maxsz + \ 4681da177e4SLinus Torvalds decode_fsinfo_maxsz) 4691da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4701da177e4SLinus Torvalds encode_renew_maxsz) 4711da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4721da177e4SLinus Torvalds decode_renew_maxsz) 4731da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 4741da177e4SLinus Torvalds encode_setclientid_maxsz) 4751da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 4761da177e4SLinus Torvalds decode_setclientid_maxsz) 4771da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 4781da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4791da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 4801da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 4811da177e4SLinus Torvalds encode_fsinfo_maxsz) 4821da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 4831da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4841da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 4851da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 4861da177e4SLinus Torvalds decode_fsinfo_maxsz) 4871da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 4889b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4891da177e4SLinus Torvalds encode_putfh_maxsz + \ 4909104a55dSTrond Myklebust encode_lock_maxsz) 4911da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 4929b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4931da177e4SLinus Torvalds decode_putfh_maxsz + \ 4949104a55dSTrond Myklebust decode_lock_maxsz) 4951da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 4969b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4971da177e4SLinus Torvalds encode_putfh_maxsz + \ 4989104a55dSTrond Myklebust encode_lockt_maxsz) 4999104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5009b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5019104a55dSTrond Myklebust decode_putfh_maxsz + \ 5029104a55dSTrond Myklebust decode_lockt_maxsz) 5031da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5049b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5051da177e4SLinus Torvalds encode_putfh_maxsz + \ 5069104a55dSTrond Myklebust encode_locku_maxsz) 5071da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5089b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5091da177e4SLinus Torvalds decode_putfh_maxsz + \ 5109104a55dSTrond Myklebust decode_locku_maxsz) 511d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 512d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 513d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 514d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 515d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 516d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5171da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5189b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5191da177e4SLinus Torvalds encode_putfh_maxsz + \ 52076b32999STrond Myklebust encode_access_maxsz + \ 52176b32999STrond Myklebust encode_getattr_maxsz) 5221da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5241da177e4SLinus Torvalds decode_putfh_maxsz + \ 52576b32999STrond Myklebust decode_access_maxsz + \ 52676b32999STrond Myklebust decode_getattr_maxsz) 5271da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5289b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5291da177e4SLinus Torvalds encode_putfh_maxsz + \ 5301da177e4SLinus Torvalds encode_getattr_maxsz) 5311da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5329b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5331da177e4SLinus Torvalds decode_putfh_maxsz + \ 5341da177e4SLinus Torvalds decode_getattr_maxsz) 5351da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5369b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5371da177e4SLinus Torvalds encode_putfh_maxsz + \ 5381da177e4SLinus Torvalds encode_lookup_maxsz + \ 5391da177e4SLinus Torvalds encode_getattr_maxsz + \ 5401da177e4SLinus Torvalds encode_getfh_maxsz) 5411da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5429b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5431da177e4SLinus Torvalds decode_putfh_maxsz + \ 544e6889620STrond Myklebust decode_lookup_maxsz + \ 5451da177e4SLinus Torvalds decode_getattr_maxsz + \ 5461da177e4SLinus Torvalds decode_getfh_maxsz) 5471da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5489b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5491da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5501da177e4SLinus Torvalds encode_getattr_maxsz + \ 5511da177e4SLinus Torvalds encode_getfh_maxsz) 5521da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5539b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5541da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5551da177e4SLinus Torvalds decode_getattr_maxsz + \ 5561da177e4SLinus Torvalds decode_getfh_maxsz) 5571da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5589b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5591da177e4SLinus Torvalds encode_putfh_maxsz + \ 56016e42959STrond Myklebust encode_remove_maxsz + \ 56116e42959STrond Myklebust encode_getattr_maxsz) 5621da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5639b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5641da177e4SLinus Torvalds decode_putfh_maxsz + \ 5656ce18391SBenny Halevy decode_remove_maxsz + \ 56616e42959STrond Myklebust decode_getattr_maxsz) 5671da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5689b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5691da177e4SLinus Torvalds encode_putfh_maxsz + \ 5701da177e4SLinus Torvalds encode_savefh_maxsz + \ 5711da177e4SLinus Torvalds encode_putfh_maxsz + \ 5726caf2c82STrond Myklebust encode_rename_maxsz + \ 5736caf2c82STrond Myklebust encode_getattr_maxsz + \ 5746caf2c82STrond Myklebust encode_restorefh_maxsz + \ 5756caf2c82STrond Myklebust encode_getattr_maxsz) 5761da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 5779b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5781da177e4SLinus Torvalds decode_putfh_maxsz + \ 5791da177e4SLinus Torvalds decode_savefh_maxsz + \ 5801da177e4SLinus Torvalds decode_putfh_maxsz + \ 5816caf2c82STrond Myklebust decode_rename_maxsz + \ 5826caf2c82STrond Myklebust decode_getattr_maxsz + \ 5836caf2c82STrond Myklebust decode_restorefh_maxsz + \ 5846caf2c82STrond Myklebust decode_getattr_maxsz) 5851da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 5869b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5871da177e4SLinus Torvalds encode_putfh_maxsz + \ 5881da177e4SLinus Torvalds encode_savefh_maxsz + \ 5891da177e4SLinus Torvalds encode_putfh_maxsz + \ 59091ba2eeeSTrond Myklebust encode_link_maxsz + \ 59191ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 59291ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 59391ba2eeeSTrond Myklebust decode_getattr_maxsz) 5941da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 5959b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5961da177e4SLinus Torvalds decode_putfh_maxsz + \ 5971da177e4SLinus Torvalds decode_savefh_maxsz + \ 5981da177e4SLinus Torvalds decode_putfh_maxsz + \ 59991ba2eeeSTrond Myklebust decode_link_maxsz + \ 60091ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 60191ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 60291ba2eeeSTrond Myklebust decode_getattr_maxsz) 6031da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6049b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6051da177e4SLinus Torvalds encode_putfh_maxsz + \ 6061da177e4SLinus Torvalds encode_symlink_maxsz + \ 6071da177e4SLinus Torvalds encode_getattr_maxsz + \ 6081da177e4SLinus Torvalds encode_getfh_maxsz) 6091da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6109b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6111da177e4SLinus Torvalds decode_putfh_maxsz + \ 6121da177e4SLinus Torvalds decode_symlink_maxsz + \ 6131da177e4SLinus Torvalds decode_getattr_maxsz + \ 6141da177e4SLinus Torvalds decode_getfh_maxsz) 6151da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6169b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6171da177e4SLinus Torvalds encode_putfh_maxsz + \ 61856ae19f3STrond Myklebust encode_savefh_maxsz + \ 6191da177e4SLinus Torvalds encode_create_maxsz + \ 62056ae19f3STrond Myklebust encode_getfh_maxsz + \ 6211da177e4SLinus Torvalds encode_getattr_maxsz + \ 62256ae19f3STrond Myklebust encode_restorefh_maxsz + \ 62356ae19f3STrond Myklebust encode_getattr_maxsz) 6241da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6259b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6261da177e4SLinus Torvalds decode_putfh_maxsz + \ 62756ae19f3STrond Myklebust decode_savefh_maxsz + \ 6281da177e4SLinus Torvalds decode_create_maxsz + \ 62956ae19f3STrond Myklebust decode_getfh_maxsz + \ 6301da177e4SLinus Torvalds decode_getattr_maxsz + \ 63156ae19f3STrond Myklebust decode_restorefh_maxsz + \ 63256ae19f3STrond Myklebust decode_getattr_maxsz) 6331da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6349b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6351da177e4SLinus Torvalds encode_putfh_maxsz + \ 6361da177e4SLinus Torvalds encode_getattr_maxsz) 6371da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6389b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6391da177e4SLinus Torvalds decode_putfh_maxsz + \ 6401da177e4SLinus Torvalds decode_getattr_maxsz) 6411da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6429b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6431da177e4SLinus Torvalds encode_putfh_maxsz + \ 6449104a55dSTrond Myklebust encode_statfs_maxsz) 6451da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6469b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6471da177e4SLinus Torvalds decode_putfh_maxsz + \ 6489104a55dSTrond Myklebust decode_statfs_maxsz) 6491da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6509b7b9fccSAndy Adamson encode_sequence_maxsz + \ 651ab91f264STrond Myklebust encode_putfh_maxsz + \ 6521da177e4SLinus Torvalds encode_getattr_maxsz) 6531da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6549b7b9fccSAndy Adamson decode_sequence_maxsz + \ 655ab91f264STrond Myklebust decode_putfh_maxsz + \ 6561da177e4SLinus Torvalds decode_getattr_maxsz) 6571da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6589b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6591da177e4SLinus Torvalds encode_putfh_maxsz + \ 660fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 661fa178f29STrond Myklebust encode_getattr_maxsz) 6621da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6639b7b9fccSAndy Adamson decode_sequence_maxsz + \ 664fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 665fa178f29STrond Myklebust decode_getattr_maxsz) 666029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6679b7b9fccSAndy Adamson encode_sequence_maxsz + \ 668029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6699104a55dSTrond Myklebust encode_getacl_maxsz) 670029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6719b7b9fccSAndy Adamson decode_sequence_maxsz + \ 672029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 6739104a55dSTrond Myklebust decode_getacl_maxsz) 67423ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 6759b7b9fccSAndy Adamson encode_sequence_maxsz + \ 67623ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 6779104a55dSTrond Myklebust encode_setacl_maxsz) 67823ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 6799b7b9fccSAndy Adamson decode_sequence_maxsz + \ 68023ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 6819104a55dSTrond Myklebust decode_setacl_maxsz) 682683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 683683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 6849b7b9fccSAndy Adamson encode_sequence_maxsz + \ 685683b57b4STrond Myklebust encode_putfh_maxsz + \ 686e6889620STrond Myklebust encode_lookup_maxsz + \ 687e6889620STrond Myklebust encode_fs_locations_maxsz) 688683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 689683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 6909b7b9fccSAndy Adamson decode_sequence_maxsz + \ 691683b57b4STrond Myklebust decode_putfh_maxsz + \ 692e6889620STrond Myklebust decode_lookup_maxsz + \ 693e6889620STrond Myklebust decode_fs_locations_maxsz) 6945a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 6955a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 6965a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 6975a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 6985a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 6995a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7005a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7015a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 70299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 70399fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 70499fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 70599fe60d0SBenny Halevy encode_exchange_id_maxsz) 70699fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 70799fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 70899fe60d0SBenny Halevy decode_exchange_id_maxsz) 709fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 710fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 711fc931582SAndy Adamson encode_create_session_maxsz) 712fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 713fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 714fc931582SAndy Adamson decode_create_session_maxsz) 7150f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7160f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7170f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7180f3e66c6SAndy Adamson decode_destroy_session_maxsz) 719fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 720fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 721fc01cea9SAndy Adamson encode_sequence_maxsz) 722fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 723fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 724fc01cea9SAndy Adamson decode_sequence_maxsz) 7252050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7262050f0ccSAndy Adamson encode_sequence_maxsz + \ 7272050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7282050f0ccSAndy Adamson encode_fsinfo_maxsz) 7292050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7302050f0ccSAndy Adamson decode_sequence_maxsz + \ 7312050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7322050f0ccSAndy Adamson decode_fsinfo_maxsz) 73318019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 73418019753SRicardo Labiaga encode_sequence_maxsz + \ 73518019753SRicardo Labiaga encode_reclaim_complete_maxsz) 73618019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 73718019753SRicardo Labiaga decode_sequence_maxsz + \ 73818019753SRicardo Labiaga decode_reclaim_complete_maxsz) 739b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 740b1f69b75SAndy Adamson encode_sequence_maxsz +\ 741b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 742b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 743b1f69b75SAndy Adamson decode_sequence_maxsz + \ 744b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 745b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 746b1f69b75SAndy Adamson encode_sequence_maxsz + \ 747b1f69b75SAndy Adamson encode_putfh_maxsz + \ 748b1f69b75SAndy Adamson encode_layoutget_maxsz) 749b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 750b1f69b75SAndy Adamson decode_sequence_maxsz + \ 751b1f69b75SAndy Adamson decode_putfh_maxsz + \ 752b1f69b75SAndy Adamson decode_layoutget_maxsz) 753863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 754863a3c6cSAndy Adamson encode_sequence_maxsz +\ 755863a3c6cSAndy Adamson encode_putfh_maxsz + \ 756863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 757863a3c6cSAndy Adamson encode_getattr_maxsz) 758863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 759863a3c6cSAndy Adamson decode_sequence_maxsz + \ 760863a3c6cSAndy Adamson decode_putfh_maxsz + \ 761863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 762863a3c6cSAndy Adamson decode_getattr_maxsz) 763863a3c6cSAndy Adamson 7642449ea2eSAlexandros Batsakis 7652449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 7662449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 7672449ea2eSAlexandros Batsakis encode_sequence_maxsz + 7682449ea2eSAlexandros Batsakis encode_putfh_maxsz + 7692449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 7702449ea2eSAlexandros Batsakis XDR_UNIT); 7712449ea2eSAlexandros Batsakis 7722449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 7732449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 7742449ea2eSAlexandros Batsakis decode_sequence_maxsz + 7752449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 7762449ea2eSAlexandros Batsakis XDR_UNIT); 77799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 7781da177e4SLinus Torvalds 779bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 780bca79478STrond Myklebust [NF4BAD] = 0, 781bca79478STrond Myklebust [NF4REG] = S_IFREG, 782bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 783bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 784bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 785bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 786bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 787bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 788bca79478STrond Myklebust [NF4ATTRDIR] = 0, 789bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 7901da177e4SLinus Torvalds }; 7911da177e4SLinus Torvalds 7921da177e4SLinus Torvalds struct compound_hdr { 7931da177e4SLinus Torvalds int32_t status; 7941da177e4SLinus Torvalds uint32_t nops; 795d017931cSAndy Adamson __be32 * nops_p; 7961da177e4SLinus Torvalds uint32_t taglen; 7971da177e4SLinus Torvalds char * tag; 7980c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 79966cc0429SBenny Halevy u32 minorversion; 8001da177e4SLinus Torvalds }; 8011da177e4SLinus Torvalds 80213c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 80313c65ce9SBenny Halevy { 80413c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 80513c65ce9SBenny Halevy BUG_ON(!p); 80613c65ce9SBenny Halevy return p; 80713c65ce9SBenny Halevy } 8081da177e4SLinus Torvalds 8091da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 8101da177e4SLinus Torvalds { 8118687b63aSAl Viro __be32 *p; 8121da177e4SLinus Torvalds 8131da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 8141da177e4SLinus Torvalds BUG_ON(p == NULL); 8151da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 8161da177e4SLinus Torvalds } 8171da177e4SLinus Torvalds 8180c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 8190c4e8c18SBenny Halevy struct rpc_rqst *req, 8200c4e8c18SBenny Halevy struct compound_hdr *hdr) 8211da177e4SLinus Torvalds { 8228687b63aSAl Viro __be32 *p; 823a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 8240c4e8c18SBenny Halevy 8250c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 8260c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 8270c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 8280c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 8291da177e4SLinus Torvalds 8301da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 8311da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 832811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 833811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 834e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 835d017931cSAndy Adamson hdr->nops_p = p; 83634558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 837d017931cSAndy Adamson } 838d017931cSAndy Adamson 839d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 840d017931cSAndy Adamson { 841fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 842d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 8431da177e4SLinus Torvalds } 8441da177e4SLinus Torvalds 8451da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 8461da177e4SLinus Torvalds { 8478687b63aSAl Viro __be32 *p; 8481da177e4SLinus Torvalds 8491da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 8501da177e4SLinus Torvalds BUG_ON(p == NULL); 8511da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 8521da177e4SLinus Torvalds } 8531da177e4SLinus Torvalds 854cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 8551da177e4SLinus Torvalds { 8561da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 8571da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 8581da177e4SLinus Torvalds int owner_namelen = 0; 8591da177e4SLinus Torvalds int owner_grouplen = 0; 8608687b63aSAl Viro __be32 *p; 8618687b63aSAl Viro __be32 *q; 8621da177e4SLinus Torvalds int len; 8631da177e4SLinus Torvalds uint32_t bmval0 = 0; 8641da177e4SLinus Torvalds uint32_t bmval1 = 0; 8651da177e4SLinus Torvalds 8661da177e4SLinus Torvalds /* 8671da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 8681da177e4SLinus Torvalds * In the worst-case, this would be 8691da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 8701da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 87123ec6965SJ. Bruce Fields * such as owner/group. 8721da177e4SLinus Torvalds */ 8731da177e4SLinus Torvalds len = 16; 8741da177e4SLinus Torvalds 8751da177e4SLinus Torvalds /* Sigh */ 8761da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 8771da177e4SLinus Torvalds len += 8; 8781da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 8791da177e4SLinus Torvalds len += 4; 8801da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 881e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 8821da177e4SLinus Torvalds if (owner_namelen < 0) { 883fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 8841da177e4SLinus Torvalds iap->ia_uid); 8851da177e4SLinus Torvalds /* XXX */ 8861da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 8871da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 8881da177e4SLinus Torvalds /* goto out; */ 8891da177e4SLinus Torvalds } 8901da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 8911da177e4SLinus Torvalds } 8921da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 893e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 8941da177e4SLinus Torvalds if (owner_grouplen < 0) { 895fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 8961da177e4SLinus Torvalds iap->ia_gid); 8971da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 8981da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 8991da177e4SLinus Torvalds /* goto out; */ 9001da177e4SLinus Torvalds } 9011da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 9021da177e4SLinus Torvalds } 9031da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 9041da177e4SLinus Torvalds len += 16; 9051da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 9061da177e4SLinus Torvalds len += 4; 9071da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 9081da177e4SLinus Torvalds len += 16; 9091da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 9101da177e4SLinus Torvalds len += 4; 91113c65ce9SBenny Halevy p = reserve_space(xdr, len); 9121da177e4SLinus Torvalds 9131da177e4SLinus Torvalds /* 9141da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 9151da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 9161da177e4SLinus Torvalds */ 917e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 9181da177e4SLinus Torvalds q = p; 9191da177e4SLinus Torvalds p += 3; 9201da177e4SLinus Torvalds 9211da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 9221da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 923b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 9261da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 927e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 9281da177e4SLinus Torvalds } 9291da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 9301da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 931811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 9321da177e4SLinus Torvalds } 9331da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 9341da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 935811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 9361da177e4SLinus Torvalds } 9371da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 9381da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 939e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 940e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 941d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 942d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 9431da177e4SLinus Torvalds } 9441da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 9451da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 946e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 9471da177e4SLinus Torvalds } 9481da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 9491da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 950e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 951e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 952e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 953e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 9541da177e4SLinus Torvalds } 9551da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 9561da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 957e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 9581da177e4SLinus Torvalds } 9591da177e4SLinus Torvalds 9601da177e4SLinus Torvalds /* 9611da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 9621da177e4SLinus Torvalds */ 9631da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 964fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 9651da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 9661da177e4SLinus Torvalds BUG(); 9671da177e4SLinus Torvalds } 9681da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 9691da177e4SLinus Torvalds *q++ = htonl(bmval0); 9701da177e4SLinus Torvalds *q++ = htonl(bmval1); 97134558513SBenny Halevy *q = htonl(len); 9721da177e4SLinus Torvalds 9731da177e4SLinus Torvalds /* out: */ 9741da177e4SLinus Torvalds } 9751da177e4SLinus Torvalds 976cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 9771da177e4SLinus Torvalds { 9788687b63aSAl Viro __be32 *p; 9791da177e4SLinus Torvalds 98013c65ce9SBenny Halevy p = reserve_space(xdr, 8); 981e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 98234558513SBenny Halevy *p = cpu_to_be32(access); 983d017931cSAndy Adamson hdr->nops++; 984dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 9851da177e4SLinus Torvalds } 9861da177e4SLinus Torvalds 987cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 9881da177e4SLinus Torvalds { 9898687b63aSAl Viro __be32 *p; 9901da177e4SLinus Torvalds 99113c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 992e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 993e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 99434558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 995d017931cSAndy Adamson hdr->nops++; 996dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 9971da177e4SLinus Torvalds } 9981da177e4SLinus Torvalds 999cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 10001da177e4SLinus Torvalds { 10018687b63aSAl Viro __be32 *p; 10021da177e4SLinus Torvalds 100313c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1004e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 1005b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 100634558513SBenny Halevy *p = cpu_to_be32(args->count); 1007d017931cSAndy Adamson hdr->nops++; 1008dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 10091da177e4SLinus Torvalds } 10101da177e4SLinus Torvalds 1011cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 10121da177e4SLinus Torvalds { 10138687b63aSAl Viro __be32 *p; 10141da177e4SLinus Torvalds 101513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1016e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 101734558513SBenny Halevy *p = cpu_to_be32(create->ftype); 10181da177e4SLinus Torvalds 10191da177e4SLinus Torvalds switch (create->ftype) { 10201da177e4SLinus Torvalds case NF4LNK: 102113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 102234558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 102394a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 10241da177e4SLinus Torvalds break; 10251da177e4SLinus Torvalds 10261da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 102713c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1028e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 102934558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 10301da177e4SLinus Torvalds break; 10311da177e4SLinus Torvalds 10321da177e4SLinus Torvalds default: 10331da177e4SLinus Torvalds break; 10341da177e4SLinus Torvalds } 10351da177e4SLinus Torvalds 1036811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1037d017931cSAndy Adamson hdr->nops++; 1038dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 10391da177e4SLinus Torvalds 1040cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 10411da177e4SLinus Torvalds } 10421da177e4SLinus Torvalds 1043cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 10441da177e4SLinus Torvalds { 10458687b63aSAl Viro __be32 *p; 10461da177e4SLinus Torvalds 104713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1048e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1049e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 105034558513SBenny Halevy *p = cpu_to_be32(bitmap); 1051d017931cSAndy Adamson hdr->nops++; 1052dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 10531da177e4SLinus Torvalds } 10541da177e4SLinus Torvalds 1055cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 10561da177e4SLinus Torvalds { 10578687b63aSAl Viro __be32 *p; 10581da177e4SLinus Torvalds 105913c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1060e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1061e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1062e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 106334558513SBenny Halevy *p = cpu_to_be32(bm1); 1064d017931cSAndy Adamson hdr->nops++; 1065dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 10661da177e4SLinus Torvalds } 10671da177e4SLinus Torvalds 1068cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10691da177e4SLinus Torvalds { 1070cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1071d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 10721da177e4SLinus Torvalds } 10731da177e4SLinus Torvalds 1074cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 10751da177e4SLinus Torvalds { 1076cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0], 1077d017931cSAndy Adamson bitmask[1] & nfs4_fsinfo_bitmap[1], hdr); 10781da177e4SLinus Torvalds } 10791da177e4SLinus Torvalds 1080cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1081830b8e33SManoj Naik { 1082cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1083cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1084830b8e33SManoj Naik } 1085830b8e33SManoj Naik 1086cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 10871da177e4SLinus Torvalds { 10888687b63aSAl Viro __be32 *p; 10891da177e4SLinus Torvalds 109013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 109134558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1092d017931cSAndy Adamson hdr->nops++; 1093dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 10941da177e4SLinus Torvalds } 10951da177e4SLinus Torvalds 1096cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 10971da177e4SLinus Torvalds { 10988687b63aSAl Viro __be32 *p; 10991da177e4SLinus Torvalds 110013c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1101e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1102811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1103d017931cSAndy Adamson hdr->nops++; 1104dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 11051da177e4SLinus Torvalds } 11061da177e4SLinus Torvalds 1107911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1108911d1aafSTrond Myklebust { 1109911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1110911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1111911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1112911d1aafSTrond Myklebust } 1113911d1aafSTrond Myklebust 1114911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1115911d1aafSTrond Myklebust { 1116911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1117911d1aafSTrond Myklebust return ~(uint64_t)0; 1118911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1119911d1aafSTrond Myklebust } 1120911d1aafSTrond Myklebust 1121daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1122daccbdedSTrond Myklebust { 1123daccbdedSTrond Myklebust __be32 *p; 1124daccbdedSTrond Myklebust 1125d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1126daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1127d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1128daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1129d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1130daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1131daccbdedSTrond Myklebust } 1132daccbdedSTrond Myklebust 11331da177e4SLinus Torvalds /* 11341da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 11351da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 11361da177e4SLinus Torvalds */ 1137cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 11381da177e4SLinus Torvalds { 11398687b63aSAl Viro __be32 *p; 11401da177e4SLinus Torvalds 114113c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1142e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1143e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1144e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1145b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1146b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 114734558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1148911d1aafSTrond Myklebust if (args->new_lock_owner){ 1149daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1150e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 115193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1152e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1153daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 11541da177e4SLinus Torvalds } 11551da177e4SLinus Torvalds else { 115613c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 115793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 115834558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 11591da177e4SLinus Torvalds } 1160d017931cSAndy Adamson hdr->nops++; 1161dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 11621da177e4SLinus Torvalds } 11631da177e4SLinus Torvalds 1164cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 11651da177e4SLinus Torvalds { 11668687b63aSAl Viro __be32 *p; 11671da177e4SLinus Torvalds 1168daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1169e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1170e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1171b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1172b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1173daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1174d017931cSAndy Adamson hdr->nops++; 1175dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 11761da177e4SLinus Torvalds } 11771da177e4SLinus Torvalds 1178cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 11791da177e4SLinus Torvalds { 11808687b63aSAl Viro __be32 *p; 11811da177e4SLinus Torvalds 118213c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1183e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1184e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1185e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 118693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1187b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 118834558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1189d017931cSAndy Adamson hdr->nops++; 1190dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 11911da177e4SLinus Torvalds } 11921da177e4SLinus Torvalds 1193d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1194d3c7b7ccSTrond Myklebust { 1195d3c7b7ccSTrond Myklebust __be32 *p; 1196d3c7b7ccSTrond Myklebust 1197d3c7b7ccSTrond Myklebust p = reserve_space(xdr, 4); 1198d3c7b7ccSTrond Myklebust *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); 1199d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1200d3c7b7ccSTrond Myklebust hdr->nops++; 1201d3c7b7ccSTrond Myklebust hdr->replen += decode_release_lockowner_maxsz; 1202d3c7b7ccSTrond Myklebust } 1203d3c7b7ccSTrond Myklebust 1204cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12051da177e4SLinus Torvalds { 12061da177e4SLinus Torvalds int len = name->len; 12078687b63aSAl Viro __be32 *p; 12081da177e4SLinus Torvalds 120913c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1210e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1211811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1212d017931cSAndy Adamson hdr->nops++; 1213dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 12141da177e4SLinus Torvalds } 12151da177e4SLinus Torvalds 1216dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 12171da177e4SLinus Torvalds { 12188687b63aSAl Viro __be32 *p; 12191da177e4SLinus Torvalds 122013c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1221dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 12221da177e4SLinus Torvalds case FMODE_READ: 1223e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 12241da177e4SLinus Torvalds break; 12251da177e4SLinus Torvalds case FMODE_WRITE: 1226e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 12271da177e4SLinus Torvalds break; 12281da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1229e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 12301da177e4SLinus Torvalds break; 12311da177e4SLinus Torvalds default: 1232e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 12331da177e4SLinus Torvalds } 123434558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 12351da177e4SLinus Torvalds } 12361da177e4SLinus Torvalds 12371da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12381da177e4SLinus Torvalds { 12398687b63aSAl Viro __be32 *p; 12401da177e4SLinus Torvalds /* 12411da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 12421da177e4SLinus Torvalds * owner 4 = 32 12431da177e4SLinus Torvalds */ 124413c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1245e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 124634558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1247dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1248d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1249b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1250d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 125193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1252d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 125334558513SBenny Halevy xdr_encode_hyper(p, arg->id); 12541da177e4SLinus Torvalds } 12551da177e4SLinus Torvalds 12561da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12571da177e4SLinus Torvalds { 12588687b63aSAl Viro __be32 *p; 12594882ef72SAlexandros Batsakis struct nfs_client *clp; 12601da177e4SLinus Torvalds 126113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12621da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 12631da177e4SLinus Torvalds case 0: 126434558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 12651da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 12661da177e4SLinus Torvalds break; 12671da177e4SLinus Torvalds default: 12684882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1269a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 12704882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 12714882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 12724882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 12734882ef72SAlexandros Batsakis } else { 12744882ef72SAlexandros Batsakis struct iattr dummy; 12754882ef72SAlexandros Batsakis 12764882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 12774882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 12784882ef72SAlexandros Batsakis dummy.ia_valid = 0; 12794882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 12804882ef72SAlexandros Batsakis } 12814882ef72SAlexandros Batsakis } else { 128234558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 12831da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 12841da177e4SLinus Torvalds } 12851da177e4SLinus Torvalds } 12864882ef72SAlexandros Batsakis } 12871da177e4SLinus Torvalds 12881da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 12891da177e4SLinus Torvalds { 12908687b63aSAl Viro __be32 *p; 12911da177e4SLinus Torvalds 129213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 12931da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 12941da177e4SLinus Torvalds case 0: 129534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 12961da177e4SLinus Torvalds break; 12971da177e4SLinus Torvalds default: 12981da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 129934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 13001da177e4SLinus Torvalds encode_createmode(xdr, arg); 13011da177e4SLinus Torvalds } 13021da177e4SLinus Torvalds } 13031da177e4SLinus Torvalds 1304bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 13051da177e4SLinus Torvalds { 13068687b63aSAl Viro __be32 *p; 13071da177e4SLinus Torvalds 130813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13091da177e4SLinus Torvalds switch (delegation_type) { 13101da177e4SLinus Torvalds case 0: 131134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 13121da177e4SLinus Torvalds break; 13131da177e4SLinus Torvalds case FMODE_READ: 131434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 13151da177e4SLinus Torvalds break; 13161da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 131734558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 13181da177e4SLinus Torvalds break; 13191da177e4SLinus Torvalds default: 13201da177e4SLinus Torvalds BUG(); 13211da177e4SLinus Torvalds } 13221da177e4SLinus Torvalds } 13231da177e4SLinus Torvalds 13241da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 13251da177e4SLinus Torvalds { 13268687b63aSAl Viro __be32 *p; 13271da177e4SLinus Torvalds 132813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 132934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 13301da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 13311da177e4SLinus Torvalds } 13321da177e4SLinus Torvalds 1333bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 13341da177e4SLinus Torvalds { 13358687b63aSAl Viro __be32 *p; 13361da177e4SLinus Torvalds 133713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 133834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 13391da177e4SLinus Torvalds encode_delegation_type(xdr, type); 13401da177e4SLinus Torvalds } 13411da177e4SLinus Torvalds 13421da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 13431da177e4SLinus Torvalds { 13448687b63aSAl Viro __be32 *p; 13451da177e4SLinus Torvalds 134613c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1347e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 134834558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 13491da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 13501da177e4SLinus Torvalds } 13511da177e4SLinus Torvalds 1352cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 13531da177e4SLinus Torvalds { 13541da177e4SLinus Torvalds encode_openhdr(xdr, arg); 13551da177e4SLinus Torvalds encode_opentype(xdr, arg); 13561da177e4SLinus Torvalds switch (arg->claim) { 13571da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 13581da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 13591da177e4SLinus Torvalds break; 13601da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 13611da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 13621da177e4SLinus Torvalds break; 13631da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 13641da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 13651da177e4SLinus Torvalds break; 13661da177e4SLinus Torvalds default: 13671da177e4SLinus Torvalds BUG(); 13681da177e4SLinus Torvalds } 1369d017931cSAndy Adamson hdr->nops++; 1370dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 13711da177e4SLinus Torvalds } 13721da177e4SLinus Torvalds 1373cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 13741da177e4SLinus Torvalds { 13758687b63aSAl Viro __be32 *p; 13761da177e4SLinus Torvalds 137713c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1378e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 137993f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 138034558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1381d017931cSAndy Adamson hdr->nops++; 1382dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 13831da177e4SLinus Torvalds } 13841da177e4SLinus Torvalds 1385cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 13861da177e4SLinus Torvalds { 13878687b63aSAl Viro __be32 *p; 13881da177e4SLinus Torvalds 138913c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1390e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 139193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 139234558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1393dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1394d017931cSAndy Adamson hdr->nops++; 1395dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 13961da177e4SLinus Torvalds } 13971da177e4SLinus Torvalds 1398cf8cdbe5SAndy Adamson static void 1399d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 14001da177e4SLinus Torvalds { 14011da177e4SLinus Torvalds int len = fh->size; 14028687b63aSAl Viro __be32 *p; 14031da177e4SLinus Torvalds 140413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1405e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1406811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1407d017931cSAndy Adamson hdr->nops++; 1408dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 14091da177e4SLinus Torvalds } 14101da177e4SLinus Torvalds 1411cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 14121da177e4SLinus Torvalds { 14138687b63aSAl Viro __be32 *p; 14141da177e4SLinus Torvalds 141513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 141634558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1417d017931cSAndy Adamson hdr->nops++; 1418dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 14191da177e4SLinus Torvalds } 14201da177e4SLinus Torvalds 142189d1ea65SAndy Adamson static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid) 14221da177e4SLinus Torvalds { 14231da177e4SLinus Torvalds nfs4_stateid stateid; 14248687b63aSAl Viro __be32 *p; 14251da177e4SLinus Torvalds 142613c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 14271da177e4SLinus Torvalds if (ctx->state != NULL) { 142877041ed9STrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); 142989d1ea65SAndy Adamson if (zero_seqid) 143089d1ea65SAndy Adamson stateid.stateid.seqid = 0; 143134558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 14321da177e4SLinus Torvalds } else 143334558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 14341da177e4SLinus Torvalds } 14351da177e4SLinus Torvalds 1436cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 14371da177e4SLinus Torvalds { 14388687b63aSAl Viro __be32 *p; 14391da177e4SLinus Torvalds 144013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144134558513SBenny Halevy *p = cpu_to_be32(OP_READ); 14421da177e4SLinus Torvalds 144389d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 144489d1ea65SAndy Adamson hdr->minorversion); 14451da177e4SLinus Torvalds 144613c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1447b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 144834558513SBenny Halevy *p = cpu_to_be32(args->count); 1449d017931cSAndy Adamson hdr->nops++; 1450dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 14511da177e4SLinus Torvalds } 14521da177e4SLinus Torvalds 1453cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 14541da177e4SLinus Torvalds { 145528331a46STrond Myklebust uint32_t attrs[2] = { 145628331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 145728331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 145828331a46STrond Myklebust }; 14596f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 14608687b63aSAl Viro __be32 *p; 14611da177e4SLinus Torvalds 146282f2e547SBryan Schumaker if (readdir->plus) { 146382f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 146428331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 146582f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 146682f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 146782f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 146882f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 14696f7a35bdSTrond Myklebust dircount >>= 1; 147082f2e547SBryan Schumaker } 147128331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 147228331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 147328331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 14746f7a35bdSTrond Myklebust 14756f7a35bdSTrond Myklebust p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 14766f7a35bdSTrond Myklebust *p++ = cpu_to_be32(OP_READDIR); 14776f7a35bdSTrond Myklebust p = xdr_encode_hyper(p, readdir->cookie); 14786f7a35bdSTrond Myklebust p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 14796f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 14806f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 14816f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 148282f2e547SBryan Schumaker 1483e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 148434558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1485d017931cSAndy Adamson hdr->nops++; 1486dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 148744109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 148844109241SFred Isaman __func__, 1489eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1490eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1491eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1492eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1493eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 14941da177e4SLinus Torvalds } 14951da177e4SLinus Torvalds 1496cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 14971da177e4SLinus Torvalds { 14988687b63aSAl Viro __be32 *p; 14991da177e4SLinus Torvalds 150013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 150134558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1502d017931cSAndy Adamson hdr->nops++; 1503dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 15041da177e4SLinus Torvalds } 15051da177e4SLinus Torvalds 1506cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 15071da177e4SLinus Torvalds { 15088687b63aSAl Viro __be32 *p; 15091da177e4SLinus Torvalds 151013c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1511e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1512811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1513d017931cSAndy Adamson hdr->nops++; 1514dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 15151da177e4SLinus Torvalds } 15161da177e4SLinus Torvalds 1517cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 15181da177e4SLinus Torvalds { 15198687b63aSAl Viro __be32 *p; 15201da177e4SLinus Torvalds 1521811652bdSBenny Halevy p = reserve_space(xdr, 4); 1522811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1523811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1524811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1525d017931cSAndy Adamson hdr->nops++; 1526dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 15271da177e4SLinus Torvalds } 15281da177e4SLinus Torvalds 1529cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 15301da177e4SLinus Torvalds { 15318687b63aSAl Viro __be32 *p; 15321da177e4SLinus Torvalds 153313c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1534e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 153534558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1536d017931cSAndy Adamson hdr->nops++; 1537dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 15381da177e4SLinus Torvalds } 15391da177e4SLinus Torvalds 1540cf8cdbe5SAndy Adamson static void 1541d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 154256ae19f3STrond Myklebust { 15438687b63aSAl Viro __be32 *p; 154456ae19f3STrond Myklebust 154513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 154634558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1547d017931cSAndy Adamson hdr->nops++; 1548dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 154956ae19f3STrond Myklebust } 155056ae19f3STrond Myklebust 15519f06c719SChuck Lever static void 1552d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 155323ec6965SJ. Bruce Fields { 15548687b63aSAl Viro __be32 *p; 155523ec6965SJ. Bruce Fields 155613c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1557e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 155834558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 155913c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1560e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 156134558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 15629f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 156313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 156434558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 156523ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1566d017931cSAndy Adamson hdr->nops++; 1567dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 156823ec6965SJ. Bruce Fields } 156923ec6965SJ. Bruce Fields 1570cf8cdbe5SAndy Adamson static void 1571d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15721da177e4SLinus Torvalds { 15738687b63aSAl Viro __be32 *p; 15741da177e4SLinus Torvalds 157513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 157634558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1577d017931cSAndy Adamson hdr->nops++; 1578dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 15791da177e4SLinus Torvalds } 15801da177e4SLinus Torvalds 1581cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 15821da177e4SLinus Torvalds { 15838687b63aSAl Viro __be32 *p; 15841da177e4SLinus Torvalds 158513c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1586e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 158734558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1588d017931cSAndy Adamson hdr->nops++; 1589dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1590cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 15911da177e4SLinus Torvalds } 15921da177e4SLinus Torvalds 1593cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 15941da177e4SLinus Torvalds { 15958687b63aSAl Viro __be32 *p; 15961da177e4SLinus Torvalds 159713c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1598e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 159934558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 16001da177e4SLinus Torvalds 16011da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 160213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 160334558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16041da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16051da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 160613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 160734558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1608d017931cSAndy Adamson hdr->nops++; 1609dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 16101da177e4SLinus Torvalds } 16111da177e4SLinus Torvalds 1612bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 16131da177e4SLinus Torvalds { 16148687b63aSAl Viro __be32 *p; 16151da177e4SLinus Torvalds 161613c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1617e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1618bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1619bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1620d017931cSAndy Adamson hdr->nops++; 1621dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 16221da177e4SLinus Torvalds } 16231da177e4SLinus Torvalds 1624cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 16251da177e4SLinus Torvalds { 16268687b63aSAl Viro __be32 *p; 16271da177e4SLinus Torvalds 162813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 162934558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 16301da177e4SLinus Torvalds 163189d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 163289d1ea65SAndy Adamson hdr->minorversion); 16331da177e4SLinus Torvalds 163413c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1635b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1636e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 163734558513SBenny Halevy *p = cpu_to_be32(args->count); 16381da177e4SLinus Torvalds 16391da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1640d017931cSAndy Adamson hdr->nops++; 1641dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 16421da177e4SLinus Torvalds } 16431da177e4SLinus Torvalds 1644cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 16451da177e4SLinus Torvalds { 16468687b63aSAl Viro __be32 *p; 16471da177e4SLinus Torvalds 164813c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 16491da177e4SLinus Torvalds 1650e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 165134558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1652d017931cSAndy Adamson hdr->nops++; 1653dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 16541da177e4SLinus Torvalds } 16559b7b9fccSAndy Adamson 16565a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16575a5ea0d4SBryan Schumaker { 16585a5ea0d4SBryan Schumaker int len = name->len; 16595a5ea0d4SBryan Schumaker __be32 *p; 16605a5ea0d4SBryan Schumaker 16615a5ea0d4SBryan Schumaker p = reserve_space(xdr, 8 + len); 16625a5ea0d4SBryan Schumaker *p++ = cpu_to_be32(OP_SECINFO); 16635a5ea0d4SBryan Schumaker xdr_encode_opaque(p, name->name, len); 16645a5ea0d4SBryan Schumaker hdr->nops++; 16655a5ea0d4SBryan Schumaker hdr->replen += decode_secinfo_maxsz; 16665a5ea0d4SBryan Schumaker } 16675a5ea0d4SBryan Schumaker 166899fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 16699b7b9fccSAndy Adamson /* NFSv4.1 operations */ 167099fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 167199fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 167299fe60d0SBenny Halevy struct compound_hdr *hdr) 167399fe60d0SBenny Halevy { 167499fe60d0SBenny Halevy __be32 *p; 167599fe60d0SBenny Halevy 167613c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1677e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 167834558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 167999fe60d0SBenny Halevy 168099fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 168199fe60d0SBenny Halevy 168213c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1683e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1684e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 168534558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 168699fe60d0SBenny Halevy hdr->nops++; 168799fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 168899fe60d0SBenny Halevy } 1689fc931582SAndy Adamson 1690fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1691fc931582SAndy Adamson struct nfs41_create_session_args *args, 1692fc931582SAndy Adamson struct compound_hdr *hdr) 1693fc931582SAndy Adamson { 1694fc931582SAndy Adamson __be32 *p; 1695fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1696fc931582SAndy Adamson uint32_t len; 1697fc931582SAndy Adamson struct nfs_client *clp = args->client; 16988e0d46e1SMike Sager u32 max_resp_sz_cached; 16998e0d46e1SMike Sager 17008e0d46e1SMike Sager /* 17018e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 17028e0d46e1SMike Sager * 2 is the verifier. 17038e0d46e1SMike Sager */ 17048e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 17058e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1706fc931582SAndy Adamson 1707fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1708fc931582SAndy Adamson clp->cl_ipaddr); 170942edd698SBenny Halevy 171013c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1711e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1712114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1713e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1714e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1715fc931582SAndy Adamson 1716fc931582SAndy Adamson /* Fore Channel */ 1717e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1718e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1719e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 17208e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1721e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1722e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1723e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1724fc931582SAndy Adamson 1725fc931582SAndy Adamson /* Back Channel */ 1726e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.headerpadsz); /* header padding size */ 1727e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1728e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1729e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1730e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1731e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1732e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1733fc931582SAndy Adamson 1734e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1735e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1736e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1737fc931582SAndy Adamson 1738fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1739e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1740811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1741e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1742e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 174334558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1744fc931582SAndy Adamson hdr->nops++; 1745fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1746fc931582SAndy Adamson } 17470f3e66c6SAndy Adamson 17480f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 17490f3e66c6SAndy Adamson struct nfs4_session *session, 17500f3e66c6SAndy Adamson struct compound_hdr *hdr) 17510f3e66c6SAndy Adamson { 17520f3e66c6SAndy Adamson __be32 *p; 175313c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1754e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 175534558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 17560f3e66c6SAndy Adamson hdr->nops++; 17570f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 17580f3e66c6SAndy Adamson } 175918019753SRicardo Labiaga 176018019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 176118019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 176218019753SRicardo Labiaga struct compound_hdr *hdr) 176318019753SRicardo Labiaga { 176418019753SRicardo Labiaga __be32 *p; 176518019753SRicardo Labiaga 176618019753SRicardo Labiaga p = reserve_space(xdr, 8); 176718019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 176818019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 176918019753SRicardo Labiaga hdr->nops++; 177018019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 177118019753SRicardo Labiaga } 177299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 177399fe60d0SBenny Halevy 17749b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 17759b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 17769b7b9fccSAndy Adamson struct compound_hdr *hdr) 17779b7b9fccSAndy Adamson { 17789b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 17799b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1780fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1781fc01cea9SAndy Adamson struct nfs4_slot *slot; 1782fc01cea9SAndy Adamson __be32 *p; 17839b7b9fccSAndy Adamson 17849b7b9fccSAndy Adamson if (!session) 17859b7b9fccSAndy Adamson return; 17869b7b9fccSAndy Adamson 1787fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1788fc01cea9SAndy Adamson 1789fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1790fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1791fc01cea9SAndy Adamson 179213c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1793e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1794fc01cea9SAndy Adamson 1795fc01cea9SAndy Adamson /* 1796fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1797fc01cea9SAndy Adamson */ 1798fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1799fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1800fc01cea9SAndy Adamson __func__, 1801fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1802fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1803fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1804fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1805fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1806fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 180793f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1808e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1809e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1810e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 181134558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 18129b7b9fccSAndy Adamson hdr->nops++; 18139b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 18149b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 18159b7b9fccSAndy Adamson } 18169b7b9fccSAndy Adamson 1817b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1818b1f69b75SAndy Adamson static void 1819b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1820b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1821b1f69b75SAndy Adamson struct compound_hdr *hdr) 1822b1f69b75SAndy Adamson { 1823b1f69b75SAndy Adamson __be32 *p; 1824b1f69b75SAndy Adamson 1825b1f69b75SAndy Adamson p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); 1826b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICEINFO); 1827b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1828b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1829b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1830b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1831b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1832b1f69b75SAndy Adamson hdr->nops++; 1833b1f69b75SAndy Adamson hdr->replen += decode_getdeviceinfo_maxsz; 1834b1f69b75SAndy Adamson } 1835b1f69b75SAndy Adamson 1836b1f69b75SAndy Adamson static void 1837b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1838b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1839b1f69b75SAndy Adamson struct compound_hdr *hdr) 1840b1f69b75SAndy Adamson { 1841b1f69b75SAndy Adamson __be32 *p; 1842b1f69b75SAndy Adamson 1843b1f69b75SAndy Adamson p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 1844b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTGET); 1845b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1846b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1847b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1848b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1849b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1850b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1851cf7d63f1SFred Isaman p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 1852b1f69b75SAndy Adamson *p = cpu_to_be32(args->maxcount); 1853b1f69b75SAndy Adamson 1854b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1855b1f69b75SAndy Adamson __func__, 1856b1f69b75SAndy Adamson args->type, 1857b1f69b75SAndy Adamson args->range.iomode, 1858b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1859b1f69b75SAndy Adamson (unsigned long)args->range.length, 1860b1f69b75SAndy Adamson args->maxcount); 1861b1f69b75SAndy Adamson hdr->nops++; 1862b1f69b75SAndy Adamson hdr->replen += decode_layoutget_maxsz; 1863b1f69b75SAndy Adamson } 1864863a3c6cSAndy Adamson 1865863a3c6cSAndy Adamson static int 1866863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1867863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1868863a3c6cSAndy Adamson struct compound_hdr *hdr) 1869863a3c6cSAndy Adamson { 1870863a3c6cSAndy Adamson __be32 *p; 1871863a3c6cSAndy Adamson 1872863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1873863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1874863a3c6cSAndy Adamson 1875863a3c6cSAndy Adamson p = reserve_space(xdr, 48 + NFS4_STATEID_SIZE); 1876863a3c6cSAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTCOMMIT); 1877863a3c6cSAndy Adamson /* Only whole file layouts */ 1878863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 1879863a3c6cSAndy Adamson p = xdr_encode_hyper(p, NFS4_MAX_UINT64); /* length */ 1880863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* reclaim */ 1881863a3c6cSAndy Adamson p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE); 1882863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1883863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 1884863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 1885863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 1886863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* no file layout payload */ 1887863a3c6cSAndy Adamson 1888863a3c6cSAndy Adamson hdr->nops++; 1889863a3c6cSAndy Adamson hdr->replen += decode_layoutcommit_maxsz; 1890863a3c6cSAndy Adamson return 0; 1891863a3c6cSAndy Adamson } 1892b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 1893b1f69b75SAndy Adamson 18941da177e4SLinus Torvalds /* 18951da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 18961da177e4SLinus Torvalds */ 18971da177e4SLinus Torvalds 189866cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 189966cc0429SBenny Halevy { 190066cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 190166cc0429SBenny Halevy if (args->sa_session) 1902a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 190366cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 190466cc0429SBenny Halevy return 0; 190566cc0429SBenny Halevy } 190666cc0429SBenny Halevy 19071da177e4SLinus Torvalds /* 19081da177e4SLinus Torvalds * Encode an ACCESS request 19091da177e4SLinus Torvalds */ 19109f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 19119f06c719SChuck Lever const struct nfs4_accessargs *args) 19121da177e4SLinus Torvalds { 19131da177e4SLinus Torvalds struct compound_hdr hdr = { 191466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19151da177e4SLinus Torvalds }; 19161da177e4SLinus Torvalds 19179f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19189f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19199f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19209f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 19219f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1922d017931cSAndy Adamson encode_nops(&hdr); 19231da177e4SLinus Torvalds } 19241da177e4SLinus Torvalds 19251da177e4SLinus Torvalds /* 19261da177e4SLinus Torvalds * Encode LOOKUP request 19271da177e4SLinus Torvalds */ 19289f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 19299f06c719SChuck Lever const struct nfs4_lookup_arg *args) 19301da177e4SLinus Torvalds { 19311da177e4SLinus Torvalds struct compound_hdr hdr = { 193266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19331da177e4SLinus Torvalds }; 19341da177e4SLinus Torvalds 19359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19369f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19379f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 19389f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 19399f06c719SChuck Lever encode_getfh(xdr, &hdr); 19409f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1941d017931cSAndy Adamson encode_nops(&hdr); 19421da177e4SLinus Torvalds } 19431da177e4SLinus Torvalds 19441da177e4SLinus Torvalds /* 19451da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 19461da177e4SLinus Torvalds */ 19479f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 19489f06c719SChuck Lever struct xdr_stream *xdr, 19499f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 19501da177e4SLinus Torvalds { 19511da177e4SLinus Torvalds struct compound_hdr hdr = { 195266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19531da177e4SLinus Torvalds }; 19541da177e4SLinus Torvalds 19559f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19569f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19579f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 19589f06c719SChuck Lever encode_getfh(xdr, &hdr); 19599f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1960d017931cSAndy Adamson encode_nops(&hdr); 19611da177e4SLinus Torvalds } 19621da177e4SLinus Torvalds 19631da177e4SLinus Torvalds /* 19641da177e4SLinus Torvalds * Encode REMOVE request 19651da177e4SLinus Torvalds */ 19669f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 19679f06c719SChuck Lever const struct nfs_removeargs *args) 19681da177e4SLinus Torvalds { 19691da177e4SLinus Torvalds struct compound_hdr hdr = { 197066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19711da177e4SLinus Torvalds }; 19721da177e4SLinus Torvalds 19739f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19749f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19759f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 19769f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 19779f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 1978d017931cSAndy Adamson encode_nops(&hdr); 19791da177e4SLinus Torvalds } 19801da177e4SLinus Torvalds 19811da177e4SLinus Torvalds /* 19821da177e4SLinus Torvalds * Encode RENAME request 19831da177e4SLinus Torvalds */ 19849f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 19859f06c719SChuck Lever const struct nfs_renameargs *args) 19861da177e4SLinus Torvalds { 19871da177e4SLinus Torvalds struct compound_hdr hdr = { 198866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 19891da177e4SLinus Torvalds }; 19901da177e4SLinus Torvalds 19919f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 19929f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 19939f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 19949f06c719SChuck Lever encode_savefh(xdr, &hdr); 19959f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 19969f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 19979f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 19989f06c719SChuck Lever encode_restorefh(xdr, &hdr); 19999f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2000d017931cSAndy Adamson encode_nops(&hdr); 20011da177e4SLinus Torvalds } 20021da177e4SLinus Torvalds 20031da177e4SLinus Torvalds /* 20041da177e4SLinus Torvalds * Encode LINK request 20051da177e4SLinus Torvalds */ 20069f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 20079f06c719SChuck Lever const struct nfs4_link_arg *args) 20081da177e4SLinus Torvalds { 20091da177e4SLinus Torvalds struct compound_hdr hdr = { 201066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20111da177e4SLinus Torvalds }; 20121da177e4SLinus Torvalds 20139f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20149f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20159f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20169f06c719SChuck Lever encode_savefh(xdr, &hdr); 20179f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 20189f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 20199f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 20209f06c719SChuck Lever encode_restorefh(xdr, &hdr); 20219f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2022d017931cSAndy Adamson encode_nops(&hdr); 20231da177e4SLinus Torvalds } 20241da177e4SLinus Torvalds 20251da177e4SLinus Torvalds /* 20261da177e4SLinus Torvalds * Encode CREATE request 20271da177e4SLinus Torvalds */ 20289f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 20299f06c719SChuck Lever const struct nfs4_create_arg *args) 20301da177e4SLinus Torvalds { 20311da177e4SLinus Torvalds struct compound_hdr hdr = { 203266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20331da177e4SLinus Torvalds }; 20341da177e4SLinus Torvalds 20359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20369f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20379f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 20389f06c719SChuck Lever encode_savefh(xdr, &hdr); 20399f06c719SChuck Lever encode_create(xdr, args, &hdr); 20409f06c719SChuck Lever encode_getfh(xdr, &hdr); 20419f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 20429f06c719SChuck Lever encode_restorefh(xdr, &hdr); 20439f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2044d017931cSAndy Adamson encode_nops(&hdr); 20451da177e4SLinus Torvalds } 20461da177e4SLinus Torvalds 20471da177e4SLinus Torvalds /* 20481da177e4SLinus Torvalds * Encode SYMLINK request 20491da177e4SLinus Torvalds */ 20509f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 20519f06c719SChuck Lever const struct nfs4_create_arg *args) 20521da177e4SLinus Torvalds { 20539f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 20541da177e4SLinus Torvalds } 20551da177e4SLinus Torvalds 20561da177e4SLinus Torvalds /* 20571da177e4SLinus Torvalds * Encode GETATTR request 20581da177e4SLinus Torvalds */ 20599f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 20609f06c719SChuck Lever const struct nfs4_getattr_arg *args) 20611da177e4SLinus Torvalds { 20621da177e4SLinus Torvalds struct compound_hdr hdr = { 206366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20641da177e4SLinus Torvalds }; 20651da177e4SLinus Torvalds 20669f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20679f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20689f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20699f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2070d017931cSAndy Adamson encode_nops(&hdr); 20711da177e4SLinus Torvalds } 20721da177e4SLinus Torvalds 20731da177e4SLinus Torvalds /* 20741da177e4SLinus Torvalds * Encode a CLOSE request 20751da177e4SLinus Torvalds */ 20769f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 20779f06c719SChuck Lever struct nfs_closeargs *args) 20781da177e4SLinus Torvalds { 20791da177e4SLinus Torvalds struct compound_hdr hdr = { 208066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20811da177e4SLinus Torvalds }; 20821da177e4SLinus Torvalds 20839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 20849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 20859f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 20869f06c719SChuck Lever encode_close(xdr, args, &hdr); 20879f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2088d017931cSAndy Adamson encode_nops(&hdr); 20891da177e4SLinus Torvalds } 20901da177e4SLinus Torvalds 20911da177e4SLinus Torvalds /* 20921da177e4SLinus Torvalds * Encode an OPEN request 20931da177e4SLinus Torvalds */ 20949f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 20959f06c719SChuck Lever struct nfs_openargs *args) 20961da177e4SLinus Torvalds { 20971da177e4SLinus Torvalds struct compound_hdr hdr = { 209866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 20991da177e4SLinus Torvalds }; 21001da177e4SLinus Torvalds 21019f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21029f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21039f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21049f06c719SChuck Lever encode_savefh(xdr, &hdr); 21059f06c719SChuck Lever encode_open(xdr, args, &hdr); 21069f06c719SChuck Lever encode_getfh(xdr, &hdr); 21079f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 21089f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21099f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2110d017931cSAndy Adamson encode_nops(&hdr); 21111da177e4SLinus Torvalds } 21121da177e4SLinus Torvalds 21131da177e4SLinus Torvalds /* 21141da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 21151da177e4SLinus Torvalds */ 21169f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 21179f06c719SChuck Lever struct xdr_stream *xdr, 21189f06c719SChuck Lever struct nfs_open_confirmargs *args) 21191da177e4SLinus Torvalds { 21201da177e4SLinus Torvalds struct compound_hdr hdr = { 2121d017931cSAndy Adamson .nops = 0, 21221da177e4SLinus Torvalds }; 21231da177e4SLinus Torvalds 21249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21259f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21269f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2127d017931cSAndy Adamson encode_nops(&hdr); 21281da177e4SLinus Torvalds } 21291da177e4SLinus Torvalds 21301da177e4SLinus Torvalds /* 21311da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 21321da177e4SLinus Torvalds */ 21339f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 21349f06c719SChuck Lever struct xdr_stream *xdr, 21359f06c719SChuck Lever struct nfs_openargs *args) 21361da177e4SLinus Torvalds { 21371da177e4SLinus Torvalds struct compound_hdr hdr = { 213866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21391da177e4SLinus Torvalds }; 21401da177e4SLinus Torvalds 21419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21449f06c719SChuck Lever encode_open(xdr, args, &hdr); 21459f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2146d017931cSAndy Adamson encode_nops(&hdr); 21471da177e4SLinus Torvalds } 21481da177e4SLinus Torvalds 21491da177e4SLinus Torvalds /* 21501da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 21511da177e4SLinus Torvalds */ 21529f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 21539f06c719SChuck Lever struct xdr_stream *xdr, 21549f06c719SChuck Lever struct nfs_closeargs *args) 21551da177e4SLinus Torvalds { 21561da177e4SLinus Torvalds struct compound_hdr hdr = { 215766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21581da177e4SLinus Torvalds }; 21591da177e4SLinus Torvalds 21609f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21619f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21629f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21639f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 21649f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2165d017931cSAndy Adamson encode_nops(&hdr); 21661da177e4SLinus Torvalds } 21671da177e4SLinus Torvalds 21681da177e4SLinus Torvalds /* 21691da177e4SLinus Torvalds * Encode a LOCK request 21701da177e4SLinus Torvalds */ 21719f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 21729f06c719SChuck Lever struct nfs_lock_args *args) 21731da177e4SLinus Torvalds { 21741da177e4SLinus Torvalds struct compound_hdr hdr = { 217566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21761da177e4SLinus Torvalds }; 21771da177e4SLinus Torvalds 21789f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21799f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21809f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21819f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2182d017931cSAndy Adamson encode_nops(&hdr); 21831da177e4SLinus Torvalds } 21841da177e4SLinus Torvalds 21851da177e4SLinus Torvalds /* 21861da177e4SLinus Torvalds * Encode a LOCKT request 21871da177e4SLinus Torvalds */ 21889f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 21899f06c719SChuck Lever struct nfs_lockt_args *args) 21901da177e4SLinus Torvalds { 21911da177e4SLinus Torvalds struct compound_hdr hdr = { 219266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21931da177e4SLinus Torvalds }; 21941da177e4SLinus Torvalds 21959f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21969f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21979f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21989f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2199d017931cSAndy Adamson encode_nops(&hdr); 22001da177e4SLinus Torvalds } 22011da177e4SLinus Torvalds 22021da177e4SLinus Torvalds /* 22031da177e4SLinus Torvalds * Encode a LOCKU request 22041da177e4SLinus Torvalds */ 22059f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 22069f06c719SChuck Lever struct nfs_locku_args *args) 22071da177e4SLinus Torvalds { 22081da177e4SLinus Torvalds struct compound_hdr hdr = { 220966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22101da177e4SLinus Torvalds }; 22111da177e4SLinus Torvalds 22129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22139f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22149f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22159f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2216d017931cSAndy Adamson encode_nops(&hdr); 22171da177e4SLinus Torvalds } 22181da177e4SLinus Torvalds 22199f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 22209f06c719SChuck Lever struct xdr_stream *xdr, 22219f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2222d3c7b7ccSTrond Myklebust { 2223d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2224d3c7b7ccSTrond Myklebust .minorversion = 0, 2225d3c7b7ccSTrond Myklebust }; 2226d3c7b7ccSTrond Myklebust 22279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22289f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2229d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2230d3c7b7ccSTrond Myklebust } 2231d3c7b7ccSTrond Myklebust 22321da177e4SLinus Torvalds /* 22331da177e4SLinus Torvalds * Encode a READLINK request 22341da177e4SLinus Torvalds */ 22359f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22369f06c719SChuck Lever const struct nfs4_readlink *args) 22371da177e4SLinus Torvalds { 22381da177e4SLinus Torvalds struct compound_hdr hdr = { 223966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22401da177e4SLinus Torvalds }; 22411da177e4SLinus Torvalds 22429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22459f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2246e3a535e1STrond Myklebust 224728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2248e3a535e1STrond Myklebust args->pgbase, args->pglen); 2249d017931cSAndy Adamson encode_nops(&hdr); 22501da177e4SLinus Torvalds } 22511da177e4SLinus Torvalds 22521da177e4SLinus Torvalds /* 22531da177e4SLinus Torvalds * Encode a READDIR request 22541da177e4SLinus Torvalds */ 22559f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 22569f06c719SChuck Lever const struct nfs4_readdir_arg *args) 22571da177e4SLinus Torvalds { 22581da177e4SLinus Torvalds struct compound_hdr hdr = { 225966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22601da177e4SLinus Torvalds }; 22611da177e4SLinus Torvalds 22629f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22639f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22649f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22659f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2266d6ac02dfSTrond Myklebust 226728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2268d6ac02dfSTrond Myklebust args->pgbase, args->count); 2269d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 227028f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2271d6ac02dfSTrond Myklebust args->pgbase, args->count); 2272d017931cSAndy Adamson encode_nops(&hdr); 22731da177e4SLinus Torvalds } 22741da177e4SLinus Torvalds 22751da177e4SLinus Torvalds /* 22761da177e4SLinus Torvalds * Encode a READ request 22771da177e4SLinus Torvalds */ 22789f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 22799f06c719SChuck Lever struct nfs_readargs *args) 22801da177e4SLinus Torvalds { 22811da177e4SLinus Torvalds struct compound_hdr hdr = { 228266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22831da177e4SLinus Torvalds }; 22841da177e4SLinus Torvalds 22859f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22869f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22879f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22889f06c719SChuck Lever encode_read(xdr, args, &hdr); 22891da177e4SLinus Torvalds 229028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 22911da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 22924f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2293d017931cSAndy Adamson encode_nops(&hdr); 22941da177e4SLinus Torvalds } 22951da177e4SLinus Torvalds 22961da177e4SLinus Torvalds /* 22971da177e4SLinus Torvalds * Encode an SETATTR request 22981da177e4SLinus Torvalds */ 22999f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 23009f06c719SChuck Lever struct nfs_setattrargs *args) 23011da177e4SLinus Torvalds { 23021da177e4SLinus Torvalds struct compound_hdr hdr = { 230366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23041da177e4SLinus Torvalds }; 23051da177e4SLinus Torvalds 23069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23079f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23089f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23099f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 23109f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2311d017931cSAndy Adamson encode_nops(&hdr); 23121da177e4SLinus Torvalds } 23131da177e4SLinus Torvalds 23141da177e4SLinus Torvalds /* 2315029d105eSJ. Bruce Fields * Encode a GETACL request 2316029d105eSJ. Bruce Fields */ 23179f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2318029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2319029d105eSJ. Bruce Fields { 2320029d105eSJ. Bruce Fields struct compound_hdr hdr = { 232166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2322029d105eSJ. Bruce Fields }; 232328f56694SBenny Halevy uint32_t replen; 2324029d105eSJ. Bruce Fields 23259f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23269f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23279f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2328d327cf74SJ. Bruce Fields replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1; 23299f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2330cf8cdbe5SAndy Adamson 233128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2332029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2333d017931cSAndy Adamson encode_nops(&hdr); 2334029d105eSJ. Bruce Fields } 2335029d105eSJ. Bruce Fields 2336029d105eSJ. Bruce Fields /* 23371da177e4SLinus Torvalds * Encode a WRITE request 23381da177e4SLinus Torvalds */ 23399f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 23409f06c719SChuck Lever struct nfs_writeargs *args) 23411da177e4SLinus Torvalds { 23421da177e4SLinus Torvalds struct compound_hdr hdr = { 234366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23441da177e4SLinus Torvalds }; 23451da177e4SLinus Torvalds 23469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23479f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23489f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23499f06c719SChuck Lever encode_write(xdr, args, &hdr); 23504f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 23517ffd1064SFred Isaman if (args->bitmask) 23529f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2353d017931cSAndy Adamson encode_nops(&hdr); 23541da177e4SLinus Torvalds } 23551da177e4SLinus Torvalds 23561da177e4SLinus Torvalds /* 23571da177e4SLinus Torvalds * a COMMIT request 23581da177e4SLinus Torvalds */ 23599f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 23609f06c719SChuck Lever struct nfs_writeargs *args) 23611da177e4SLinus Torvalds { 23621da177e4SLinus Torvalds struct compound_hdr hdr = { 236366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23641da177e4SLinus Torvalds }; 23651da177e4SLinus Torvalds 23669f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23679f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23689f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23699f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2370988b6dceSFred Isaman if (args->bitmask) 23719f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2372d017931cSAndy Adamson encode_nops(&hdr); 23731da177e4SLinus Torvalds } 23741da177e4SLinus Torvalds 23751da177e4SLinus Torvalds /* 23761da177e4SLinus Torvalds * FSINFO request 23771da177e4SLinus Torvalds */ 23789f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 23799f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 23801da177e4SLinus Torvalds { 23811da177e4SLinus Torvalds struct compound_hdr hdr = { 238266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23831da177e4SLinus Torvalds }; 23841da177e4SLinus Torvalds 23859f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23869f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23879f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23889f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2389d017931cSAndy Adamson encode_nops(&hdr); 23901da177e4SLinus Torvalds } 23911da177e4SLinus Torvalds 23921da177e4SLinus Torvalds /* 23931da177e4SLinus Torvalds * a PATHCONF request 23941da177e4SLinus Torvalds */ 23959f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 23969f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 23971da177e4SLinus Torvalds { 23981da177e4SLinus Torvalds struct compound_hdr hdr = { 239966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24001da177e4SLinus Torvalds }; 24011da177e4SLinus Torvalds 24029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24039f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24049f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24059f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2406d017931cSAndy Adamson &hdr); 2407d017931cSAndy Adamson encode_nops(&hdr); 24081da177e4SLinus Torvalds } 24091da177e4SLinus Torvalds 24101da177e4SLinus Torvalds /* 24111da177e4SLinus Torvalds * a STATFS request 24121da177e4SLinus Torvalds */ 24139f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 24149f06c719SChuck Lever const struct nfs4_statfs_arg *args) 24151da177e4SLinus Torvalds { 24161da177e4SLinus Torvalds struct compound_hdr hdr = { 241766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24181da177e4SLinus Torvalds }; 24191da177e4SLinus Torvalds 24209f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24219f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24229f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24239f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2424d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2425d017931cSAndy Adamson encode_nops(&hdr); 24261da177e4SLinus Torvalds } 24271da177e4SLinus Torvalds 24281da177e4SLinus Torvalds /* 24291da177e4SLinus Torvalds * GETATTR_BITMAP request 24301da177e4SLinus Torvalds */ 24319f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 24329f06c719SChuck Lever struct xdr_stream *xdr, 243343652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 24341da177e4SLinus Torvalds { 24351da177e4SLinus Torvalds struct compound_hdr hdr = { 243666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24371da177e4SLinus Torvalds }; 24381da177e4SLinus Torvalds 24399f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24409f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24419f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 24429f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 24431da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 24441da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2445d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2446d017931cSAndy Adamson encode_nops(&hdr); 24471da177e4SLinus Torvalds } 24481da177e4SLinus Torvalds 24491da177e4SLinus Torvalds /* 24501da177e4SLinus Torvalds * a RENEW request 24511da177e4SLinus Torvalds */ 24529f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 24539f06c719SChuck Lever struct nfs_client *clp) 24541da177e4SLinus Torvalds { 24551da177e4SLinus Torvalds struct compound_hdr hdr = { 2456d017931cSAndy Adamson .nops = 0, 24571da177e4SLinus Torvalds }; 24581da177e4SLinus Torvalds 24599f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24609f06c719SChuck Lever encode_renew(xdr, clp, &hdr); 2461d017931cSAndy Adamson encode_nops(&hdr); 24621da177e4SLinus Torvalds } 24631da177e4SLinus Torvalds 24641da177e4SLinus Torvalds /* 24651da177e4SLinus Torvalds * a SETCLIENTID request 24661da177e4SLinus Torvalds */ 24679f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 24689f06c719SChuck Lever struct xdr_stream *xdr, 24699f06c719SChuck Lever struct nfs4_setclientid *sc) 24701da177e4SLinus Torvalds { 24711da177e4SLinus Torvalds struct compound_hdr hdr = { 2472d017931cSAndy Adamson .nops = 0, 24731da177e4SLinus Torvalds }; 24741da177e4SLinus Torvalds 24759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24769f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2477d017931cSAndy Adamson encode_nops(&hdr); 24781da177e4SLinus Torvalds } 24791da177e4SLinus Torvalds 24801da177e4SLinus Torvalds /* 24811da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 24821da177e4SLinus Torvalds */ 24839f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 24849f06c719SChuck Lever struct xdr_stream *xdr, 24859f06c719SChuck Lever struct nfs4_setclientid_res *arg) 24861da177e4SLinus Torvalds { 24871da177e4SLinus Torvalds struct compound_hdr hdr = { 2488d017931cSAndy Adamson .nops = 0, 24891da177e4SLinus Torvalds }; 24901da177e4SLinus Torvalds const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 24911da177e4SLinus Torvalds 24929f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24939f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 24949f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 24959f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2496d017931cSAndy Adamson encode_nops(&hdr); 24971da177e4SLinus Torvalds } 24981da177e4SLinus Torvalds 24991da177e4SLinus Torvalds /* 25001da177e4SLinus Torvalds * DELEGRETURN request 25011da177e4SLinus Torvalds */ 25029f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 25039f06c719SChuck Lever struct xdr_stream *xdr, 25049f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 25051da177e4SLinus Torvalds { 25061da177e4SLinus Torvalds struct compound_hdr hdr = { 250766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25081da177e4SLinus Torvalds }; 25091da177e4SLinus Torvalds 25109f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25119f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25129f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 25139f06c719SChuck Lever encode_delegreturn(xdr, args->stateid, &hdr); 25149f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2515d017931cSAndy Adamson encode_nops(&hdr); 25161da177e4SLinus Torvalds } 25171da177e4SLinus Torvalds 25181da177e4SLinus Torvalds /* 2519683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2520683b57b4STrond Myklebust */ 25219f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 25229f06c719SChuck Lever struct xdr_stream *xdr, 25239f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2524683b57b4STrond Myklebust { 2525683b57b4STrond Myklebust struct compound_hdr hdr = { 252666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2527683b57b4STrond Myklebust }; 252828f56694SBenny Halevy uint32_t replen; 2529683b57b4STrond Myklebust 25309f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25319f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25329f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 25339f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 253428f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 25359f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2536cf8cdbe5SAndy Adamson 253728f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2538683b57b4STrond Myklebust 0, PAGE_SIZE); 2539d017931cSAndy Adamson encode_nops(&hdr); 2540683b57b4STrond Myklebust } 2541683b57b4STrond Myklebust 25425a5ea0d4SBryan Schumaker /* 25435a5ea0d4SBryan Schumaker * Encode SECINFO request 25445a5ea0d4SBryan Schumaker */ 25455a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 25465a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 25475a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 25485a5ea0d4SBryan Schumaker { 25495a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 25505a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25515a5ea0d4SBryan Schumaker }; 25525a5ea0d4SBryan Schumaker 25535a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 25545a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 25555a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 25565a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 25575a5ea0d4SBryan Schumaker encode_nops(&hdr); 25585a5ea0d4SBryan Schumaker } 25595a5ea0d4SBryan Schumaker 256099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 256199fe60d0SBenny Halevy /* 256299fe60d0SBenny Halevy * EXCHANGE_ID request 256399fe60d0SBenny Halevy */ 25649f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 25659f06c719SChuck Lever struct xdr_stream *xdr, 256699fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 256799fe60d0SBenny Halevy { 256899fe60d0SBenny Halevy struct compound_hdr hdr = { 2569a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 257099fe60d0SBenny Halevy }; 257199fe60d0SBenny Halevy 25729f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25739f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 257499fe60d0SBenny Halevy encode_nops(&hdr); 257599fe60d0SBenny Halevy } 25762050f0ccSAndy Adamson 25772050f0ccSAndy Adamson /* 2578fc931582SAndy Adamson * a CREATE_SESSION request 2579fc931582SAndy Adamson */ 25809f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 25819f06c719SChuck Lever struct xdr_stream *xdr, 2582fc931582SAndy Adamson struct nfs41_create_session_args *args) 2583fc931582SAndy Adamson { 2584fc931582SAndy Adamson struct compound_hdr hdr = { 2585a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2586fc931582SAndy Adamson }; 2587fc931582SAndy Adamson 25889f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25899f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2590fc931582SAndy Adamson encode_nops(&hdr); 2591fc931582SAndy Adamson } 2592fc931582SAndy Adamson 2593fc931582SAndy Adamson /* 25940f3e66c6SAndy Adamson * a DESTROY_SESSION request 25950f3e66c6SAndy Adamson */ 25969f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 25979f06c719SChuck Lever struct xdr_stream *xdr, 25980f3e66c6SAndy Adamson struct nfs4_session *session) 25990f3e66c6SAndy Adamson { 26000f3e66c6SAndy Adamson struct compound_hdr hdr = { 2601a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 26020f3e66c6SAndy Adamson }; 26030f3e66c6SAndy Adamson 26049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26059f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 26060f3e66c6SAndy Adamson encode_nops(&hdr); 26070f3e66c6SAndy Adamson } 26080f3e66c6SAndy Adamson 26090f3e66c6SAndy Adamson /* 2610fc01cea9SAndy Adamson * a SEQUENCE request 2611fc01cea9SAndy Adamson */ 26129f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2613fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2614fc01cea9SAndy Adamson { 2615fc01cea9SAndy Adamson struct compound_hdr hdr = { 2616fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2617fc01cea9SAndy Adamson }; 2618fc01cea9SAndy Adamson 26199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26209f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2621fc01cea9SAndy Adamson encode_nops(&hdr); 2622fc01cea9SAndy Adamson } 2623fc01cea9SAndy Adamson 2624fc01cea9SAndy Adamson /* 26252050f0ccSAndy Adamson * a GET_LEASE_TIME request 26262050f0ccSAndy Adamson */ 26279f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 26289f06c719SChuck Lever struct xdr_stream *xdr, 26292050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 26302050f0ccSAndy Adamson { 26312050f0ccSAndy Adamson struct compound_hdr hdr = { 26322050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 26332050f0ccSAndy Adamson }; 26342050f0ccSAndy Adamson const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 }; 26352050f0ccSAndy Adamson 26369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26379f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 26389f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 26399f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 26402050f0ccSAndy Adamson encode_nops(&hdr); 26412050f0ccSAndy Adamson } 264218019753SRicardo Labiaga 264318019753SRicardo Labiaga /* 264418019753SRicardo Labiaga * a RECLAIM_COMPLETE request 264518019753SRicardo Labiaga */ 26469f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 26479f06c719SChuck Lever struct xdr_stream *xdr, 264818019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 264918019753SRicardo Labiaga { 265018019753SRicardo Labiaga struct compound_hdr hdr = { 265118019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 265218019753SRicardo Labiaga }; 265318019753SRicardo Labiaga 26549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26559f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26569f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 265718019753SRicardo Labiaga encode_nops(&hdr); 265818019753SRicardo Labiaga } 265918019753SRicardo Labiaga 2660b1f69b75SAndy Adamson /* 2661b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2662b1f69b75SAndy Adamson */ 26639f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 26649f06c719SChuck Lever struct xdr_stream *xdr, 2665b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2666b1f69b75SAndy Adamson { 2667b1f69b75SAndy Adamson struct compound_hdr hdr = { 2668b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2669b1f69b75SAndy Adamson }; 2670b1f69b75SAndy Adamson 26719f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26729f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26739f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2674b1f69b75SAndy Adamson 2675b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2676b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2677b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2678b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2679b1f69b75SAndy Adamson args->pdev->pglen); 2680b1f69b75SAndy Adamson 2681b1f69b75SAndy Adamson encode_nops(&hdr); 2682b1f69b75SAndy Adamson } 2683b1f69b75SAndy Adamson 2684b1f69b75SAndy Adamson /* 2685b1f69b75SAndy Adamson * Encode LAYOUTGET request 2686b1f69b75SAndy Adamson */ 26879f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 26889f06c719SChuck Lever struct xdr_stream *xdr, 2689b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2690b1f69b75SAndy Adamson { 2691b1f69b75SAndy Adamson struct compound_hdr hdr = { 2692b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2693b1f69b75SAndy Adamson }; 2694b1f69b75SAndy Adamson 26959f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26969f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26979f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 26989f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 269935124a09SWeston Andros Adamson 270035124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 270135124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 270235124a09SWeston Andros Adamson 2703b1f69b75SAndy Adamson encode_nops(&hdr); 2704b1f69b75SAndy Adamson } 2705863a3c6cSAndy Adamson 2706863a3c6cSAndy Adamson /* 2707863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2708863a3c6cSAndy Adamson */ 2709863a3c6cSAndy Adamson static int nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2710863a3c6cSAndy Adamson struct xdr_stream *xdr, 2711863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2712863a3c6cSAndy Adamson { 2713863a3c6cSAndy Adamson struct compound_hdr hdr = { 2714863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2715863a3c6cSAndy Adamson }; 2716863a3c6cSAndy Adamson 2717863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2718863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2719863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2720863a3c6cSAndy Adamson encode_layoutcommit(xdr, args, &hdr); 2721863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2722863a3c6cSAndy Adamson encode_nops(&hdr); 2723863a3c6cSAndy Adamson return 0; 2724863a3c6cSAndy Adamson } 272599fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 272699fe60d0SBenny Halevy 2727686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 2728686841b3SBenny Halevy { 2729686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 2730686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 2731686841b3SBenny Halevy func, xdr->end - xdr->p); 2732686841b3SBenny Halevy } 27331da177e4SLinus Torvalds 2734683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 27351da177e4SLinus Torvalds { 27368687b63aSAl Viro __be32 *p; 27371da177e4SLinus Torvalds 2738c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2739c0eae66eSBenny Halevy if (unlikely(!p)) 2740c0eae66eSBenny Halevy goto out_overflow; 2741cccddf4fSBenny Halevy *len = be32_to_cpup(p); 2742c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 2743c0eae66eSBenny Halevy if (unlikely(!p)) 2744c0eae66eSBenny Halevy goto out_overflow; 27451da177e4SLinus Torvalds *string = (char *)p; 27461da177e4SLinus Torvalds return 0; 2747c0eae66eSBenny Halevy out_overflow: 2748c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2749c0eae66eSBenny Halevy return -EIO; 27501da177e4SLinus Torvalds } 27511da177e4SLinus Torvalds 27521da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 27531da177e4SLinus Torvalds { 27548687b63aSAl Viro __be32 *p; 27551da177e4SLinus Torvalds 2756c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2757c0eae66eSBenny Halevy if (unlikely(!p)) 2758c0eae66eSBenny Halevy goto out_overflow; 27596f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 2760cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 27611da177e4SLinus Torvalds 2762c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 2763c0eae66eSBenny Halevy if (unlikely(!p)) 2764c0eae66eSBenny Halevy goto out_overflow; 27651da177e4SLinus Torvalds hdr->tag = (char *)p; 27661da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 2767cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 2768aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 2769aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 27701da177e4SLinus Torvalds return 0; 2771c0eae66eSBenny Halevy out_overflow: 2772c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2773c0eae66eSBenny Halevy return -EIO; 27741da177e4SLinus Torvalds } 27751da177e4SLinus Torvalds 27761da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 27771da177e4SLinus Torvalds { 27788687b63aSAl Viro __be32 *p; 27791da177e4SLinus Torvalds uint32_t opnum; 27801da177e4SLinus Torvalds int32_t nfserr; 27811da177e4SLinus Torvalds 2782c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2783c0eae66eSBenny Halevy if (unlikely(!p)) 2784c0eae66eSBenny Halevy goto out_overflow; 27856f723f77SBenny Halevy opnum = be32_to_cpup(p++); 27861da177e4SLinus Torvalds if (opnum != expected) { 2787fe82a183SChuck Lever dprintk("nfs: Server returned operation" 27881da177e4SLinus Torvalds " %d but we issued a request for %d\n", 27891da177e4SLinus Torvalds opnum, expected); 27901da177e4SLinus Torvalds return -EIO; 27911da177e4SLinus Torvalds } 2792cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 27931da177e4SLinus Torvalds if (nfserr != NFS_OK) 2794856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 27951da177e4SLinus Torvalds return 0; 2796c0eae66eSBenny Halevy out_overflow: 2797c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2798c0eae66eSBenny Halevy return -EIO; 27991da177e4SLinus Torvalds } 28001da177e4SLinus Torvalds 28011da177e4SLinus Torvalds /* Dummy routine */ 2802adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 28031da177e4SLinus Torvalds { 28048687b63aSAl Viro __be32 *p; 2805683b57b4STrond Myklebust unsigned int strlen; 28061da177e4SLinus Torvalds char *str; 28071da177e4SLinus Torvalds 2808c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 2809c0eae66eSBenny Halevy if (likely(p)) 28101da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 2811c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2812c0eae66eSBenny Halevy return -EIO; 28131da177e4SLinus Torvalds } 28141da177e4SLinus Torvalds 28151da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 28161da177e4SLinus Torvalds { 28178687b63aSAl Viro uint32_t bmlen; 28188687b63aSAl Viro __be32 *p; 28191da177e4SLinus Torvalds 2820c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2821c0eae66eSBenny Halevy if (unlikely(!p)) 2822c0eae66eSBenny Halevy goto out_overflow; 2823cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 28241da177e4SLinus Torvalds 28251da177e4SLinus Torvalds bitmap[0] = bitmap[1] = 0; 2826c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 2827c0eae66eSBenny Halevy if (unlikely(!p)) 2828c0eae66eSBenny Halevy goto out_overflow; 28291da177e4SLinus Torvalds if (bmlen > 0) { 28306f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 28311da177e4SLinus Torvalds if (bmlen > 1) 2832cccddf4fSBenny Halevy bitmap[1] = be32_to_cpup(p); 28331da177e4SLinus Torvalds } 28341da177e4SLinus Torvalds return 0; 2835c0eae66eSBenny Halevy out_overflow: 2836c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2837c0eae66eSBenny Halevy return -EIO; 28381da177e4SLinus Torvalds } 28391da177e4SLinus Torvalds 28408687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 28411da177e4SLinus Torvalds { 28428687b63aSAl Viro __be32 *p; 28431da177e4SLinus Torvalds 2844c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2845c0eae66eSBenny Halevy if (unlikely(!p)) 2846c0eae66eSBenny Halevy goto out_overflow; 2847cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 28481da177e4SLinus Torvalds *savep = xdr->p; 28491da177e4SLinus Torvalds return 0; 2850c0eae66eSBenny Halevy out_overflow: 2851c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2852c0eae66eSBenny Halevy return -EIO; 28531da177e4SLinus Torvalds } 28541da177e4SLinus Torvalds 28551da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 28561da177e4SLinus Torvalds { 28571da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 28583388bff5SRoman Borisov int ret; 28593388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 28603388bff5SRoman Borisov if (unlikely(ret < 0)) 28613388bff5SRoman Borisov return ret; 28621da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 28631da177e4SLinus Torvalds } else 28641da177e4SLinus Torvalds bitmask[0] = bitmask[1] = 0; 286544109241SFred Isaman dprintk("%s: bitmask=%08x:%08x\n", __func__, bitmask[0], bitmask[1]); 28661da177e4SLinus Torvalds return 0; 28671da177e4SLinus Torvalds } 28681da177e4SLinus Torvalds 28691da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 28701da177e4SLinus Torvalds { 28718687b63aSAl Viro __be32 *p; 2872409924e4STrond Myklebust int ret = 0; 28731da177e4SLinus Torvalds 28741da177e4SLinus Torvalds *type = 0; 28751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 28761da177e4SLinus Torvalds return -EIO; 28771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 2878c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2879c0eae66eSBenny Halevy if (unlikely(!p)) 2880c0eae66eSBenny Halevy goto out_overflow; 2881cccddf4fSBenny Halevy *type = be32_to_cpup(p); 28821da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 28833110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 28841da177e4SLinus Torvalds return -EIO; 28851da177e4SLinus Torvalds } 28861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 2887409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 28881da177e4SLinus Torvalds } 2889bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 2890409924e4STrond Myklebust return ret; 2891c0eae66eSBenny Halevy out_overflow: 2892c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2893c0eae66eSBenny Halevy return -EIO; 28941da177e4SLinus Torvalds } 28951da177e4SLinus Torvalds 28961da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 28971da177e4SLinus Torvalds { 28988687b63aSAl Viro __be32 *p; 2899409924e4STrond Myklebust int ret = 0; 29001da177e4SLinus Torvalds 29011da177e4SLinus Torvalds *change = 0; 29021da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 29031da177e4SLinus Torvalds return -EIO; 29041da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 2905c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2906c0eae66eSBenny Halevy if (unlikely(!p)) 2907c0eae66eSBenny Halevy goto out_overflow; 2908cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 29091da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 2910409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 29111da177e4SLinus Torvalds } 29123110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 29131da177e4SLinus Torvalds (unsigned long long)*change); 2914409924e4STrond Myklebust return ret; 2915c0eae66eSBenny Halevy out_overflow: 2916c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2917c0eae66eSBenny Halevy return -EIO; 29181da177e4SLinus Torvalds } 29191da177e4SLinus Torvalds 29201da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 29211da177e4SLinus Torvalds { 29228687b63aSAl Viro __be32 *p; 2923409924e4STrond Myklebust int ret = 0; 29241da177e4SLinus Torvalds 29251da177e4SLinus Torvalds *size = 0; 29261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 29271da177e4SLinus Torvalds return -EIO; 29281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 2929c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 2930c0eae66eSBenny Halevy if (unlikely(!p)) 2931c0eae66eSBenny Halevy goto out_overflow; 2932cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 29331da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 2934409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 29351da177e4SLinus Torvalds } 29363110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 2937409924e4STrond Myklebust return ret; 2938c0eae66eSBenny Halevy out_overflow: 2939c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2940c0eae66eSBenny Halevy return -EIO; 29411da177e4SLinus Torvalds } 29421da177e4SLinus Torvalds 29431da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29441da177e4SLinus Torvalds { 29458687b63aSAl Viro __be32 *p; 29461da177e4SLinus Torvalds 29471da177e4SLinus Torvalds *res = 0; 29481da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 29491da177e4SLinus Torvalds return -EIO; 29501da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 2951c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2952c0eae66eSBenny Halevy if (unlikely(!p)) 2953c0eae66eSBenny Halevy goto out_overflow; 2954cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29551da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 29561da177e4SLinus Torvalds } 29573110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 29581da177e4SLinus Torvalds return 0; 2959c0eae66eSBenny Halevy out_overflow: 2960c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2961c0eae66eSBenny Halevy return -EIO; 29621da177e4SLinus Torvalds } 29631da177e4SLinus Torvalds 29641da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 29651da177e4SLinus Torvalds { 29668687b63aSAl Viro __be32 *p; 29671da177e4SLinus Torvalds 29681da177e4SLinus Torvalds *res = 0; 29691da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 29701da177e4SLinus Torvalds return -EIO; 29711da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 2972c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 2973c0eae66eSBenny Halevy if (unlikely(!p)) 2974c0eae66eSBenny Halevy goto out_overflow; 2975cccddf4fSBenny Halevy *res = be32_to_cpup(p); 29761da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 29771da177e4SLinus Torvalds } 29783110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 29791da177e4SLinus Torvalds return 0; 2980c0eae66eSBenny Halevy out_overflow: 2981c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 2982c0eae66eSBenny Halevy return -EIO; 29831da177e4SLinus Torvalds } 29841da177e4SLinus Torvalds 29858b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 29861da177e4SLinus Torvalds { 29878687b63aSAl Viro __be32 *p; 2988409924e4STrond Myklebust int ret = 0; 29891da177e4SLinus Torvalds 29901da177e4SLinus Torvalds fsid->major = 0; 29911da177e4SLinus Torvalds fsid->minor = 0; 29921da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 29931da177e4SLinus Torvalds return -EIO; 29941da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 2995c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 2996c0eae66eSBenny Halevy if (unlikely(!p)) 2997c0eae66eSBenny Halevy goto out_overflow; 29983ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 2999cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 30001da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3001409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 30021da177e4SLinus Torvalds } 30033110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 30041da177e4SLinus Torvalds (unsigned long long)fsid->major, 30051da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3006409924e4STrond Myklebust return ret; 3007c0eae66eSBenny Halevy out_overflow: 3008c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3009c0eae66eSBenny Halevy return -EIO; 30101da177e4SLinus Torvalds } 30111da177e4SLinus Torvalds 30121da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 30131da177e4SLinus Torvalds { 30148687b63aSAl Viro __be32 *p; 30151da177e4SLinus Torvalds 30161da177e4SLinus Torvalds *res = 60; 30171da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 30181da177e4SLinus Torvalds return -EIO; 30191da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3020c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3021c0eae66eSBenny Halevy if (unlikely(!p)) 3022c0eae66eSBenny Halevy goto out_overflow; 3023cccddf4fSBenny Halevy *res = be32_to_cpup(p); 30241da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 30251da177e4SLinus Torvalds } 30263110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 30271da177e4SLinus Torvalds return 0; 3028c0eae66eSBenny Halevy out_overflow: 3029c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3030c0eae66eSBenny Halevy return -EIO; 30311da177e4SLinus Torvalds } 30321da177e4SLinus Torvalds 3033ae42c70aSBryan Schumaker static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap) 3034ae42c70aSBryan Schumaker { 3035ae42c70aSBryan Schumaker __be32 *p; 3036ae42c70aSBryan Schumaker 3037ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3038ae42c70aSBryan Schumaker return -EIO; 3039ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3040ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3041ae42c70aSBryan Schumaker if (unlikely(!p)) 3042ae42c70aSBryan Schumaker goto out_overflow; 3043ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 30447ebb9315SBryan Schumaker return -be32_to_cpup(p); 3045ae42c70aSBryan Schumaker } 3046ae42c70aSBryan Schumaker return 0; 3047ae42c70aSBryan Schumaker out_overflow: 3048ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3049ae42c70aSBryan Schumaker return -EIO; 3050ae42c70aSBryan Schumaker } 3051ae42c70aSBryan Schumaker 3052ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3053ae42c70aSBryan Schumaker { 3054ae42c70aSBryan Schumaker __be32 *p; 3055ae42c70aSBryan Schumaker int len; 3056ae42c70aSBryan Schumaker 30577ad07353STrond Myklebust if (fh != NULL) 3058ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3059ae42c70aSBryan Schumaker 3060ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3061ae42c70aSBryan Schumaker return -EIO; 3062ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3063ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3064ae42c70aSBryan Schumaker if (unlikely(!p)) 3065ae42c70aSBryan Schumaker goto out_overflow; 3066ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3067ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3068ae42c70aSBryan Schumaker return -EIO; 3069ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3070ae42c70aSBryan Schumaker if (unlikely(!p)) 3071ae42c70aSBryan Schumaker goto out_overflow; 30727ad07353STrond Myklebust if (fh != NULL) { 3073ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 30747ad07353STrond Myklebust fh->size = len; 30757ad07353STrond Myklebust } 3076ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3077ae42c70aSBryan Schumaker } 3078ae42c70aSBryan Schumaker return 0; 3079ae42c70aSBryan Schumaker out_overflow: 3080ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3081ae42c70aSBryan Schumaker return -EIO; 3082ae42c70aSBryan Schumaker } 3083ae42c70aSBryan Schumaker 30841da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 30851da177e4SLinus Torvalds { 30868687b63aSAl Viro __be32 *p; 30871da177e4SLinus Torvalds 30881da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 30891da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 30901da177e4SLinus Torvalds return -EIO; 30911da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3092c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3093c0eae66eSBenny Halevy if (unlikely(!p)) 3094c0eae66eSBenny Halevy goto out_overflow; 3095cccddf4fSBenny Halevy *res = be32_to_cpup(p); 30961da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 30971da177e4SLinus Torvalds } 30983110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 30991da177e4SLinus Torvalds return 0; 3100c0eae66eSBenny Halevy out_overflow: 3101c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3102c0eae66eSBenny Halevy return -EIO; 31031da177e4SLinus Torvalds } 31041da177e4SLinus Torvalds 31051da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 31061da177e4SLinus Torvalds { 31078687b63aSAl Viro __be32 *p; 3108409924e4STrond Myklebust int ret = 0; 31091da177e4SLinus Torvalds 31101da177e4SLinus Torvalds *fileid = 0; 31111da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 31121da177e4SLinus Torvalds return -EIO; 31131da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3114c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3115c0eae66eSBenny Halevy if (unlikely(!p)) 3116c0eae66eSBenny Halevy goto out_overflow; 3117cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 31181da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3119409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 31201da177e4SLinus Torvalds } 31213110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3122409924e4STrond Myklebust return ret; 3123c0eae66eSBenny Halevy out_overflow: 3124c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3125c0eae66eSBenny Halevy return -EIO; 31261da177e4SLinus Torvalds } 31271da177e4SLinus Torvalds 312899baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 312999baf625SManoj Naik { 31308687b63aSAl Viro __be32 *p; 3131409924e4STrond Myklebust int ret = 0; 313299baf625SManoj Naik 313399baf625SManoj Naik *fileid = 0; 313499baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 313599baf625SManoj Naik return -EIO; 313699baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3137c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3138c0eae66eSBenny Halevy if (unlikely(!p)) 3139c0eae66eSBenny Halevy goto out_overflow; 3140cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 314199baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 314228331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 314399baf625SManoj Naik } 31443110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3145409924e4STrond Myklebust return ret; 3146c0eae66eSBenny Halevy out_overflow: 3147c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3148c0eae66eSBenny Halevy return -EIO; 314999baf625SManoj Naik } 315099baf625SManoj Naik 31511da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31521da177e4SLinus Torvalds { 31538687b63aSAl Viro __be32 *p; 31541da177e4SLinus Torvalds int status = 0; 31551da177e4SLinus Torvalds 31561da177e4SLinus Torvalds *res = 0; 31571da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 31581da177e4SLinus Torvalds return -EIO; 31591da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3160c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3161c0eae66eSBenny Halevy if (unlikely(!p)) 3162c0eae66eSBenny Halevy goto out_overflow; 3163cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 31641da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 31651da177e4SLinus Torvalds } 31663110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 31671da177e4SLinus Torvalds return status; 3168c0eae66eSBenny Halevy out_overflow: 3169c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3170c0eae66eSBenny Halevy return -EIO; 31711da177e4SLinus Torvalds } 31721da177e4SLinus Torvalds 31731da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31741da177e4SLinus Torvalds { 31758687b63aSAl Viro __be32 *p; 31761da177e4SLinus Torvalds int status = 0; 31771da177e4SLinus Torvalds 31781da177e4SLinus Torvalds *res = 0; 31791da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 31801da177e4SLinus Torvalds return -EIO; 31811da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3182c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3183c0eae66eSBenny Halevy if (unlikely(!p)) 3184c0eae66eSBenny Halevy goto out_overflow; 3185cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 31861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 31871da177e4SLinus Torvalds } 31883110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 31891da177e4SLinus Torvalds return status; 3190c0eae66eSBenny Halevy out_overflow: 3191c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3192c0eae66eSBenny Halevy return -EIO; 31931da177e4SLinus Torvalds } 31941da177e4SLinus Torvalds 31951da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 31961da177e4SLinus Torvalds { 31978687b63aSAl Viro __be32 *p; 31981da177e4SLinus Torvalds int status = 0; 31991da177e4SLinus Torvalds 32001da177e4SLinus Torvalds *res = 0; 32011da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 32021da177e4SLinus Torvalds return -EIO; 32031da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3204c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3205c0eae66eSBenny Halevy if (unlikely(!p)) 3206c0eae66eSBenny Halevy goto out_overflow; 3207cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 32081da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 32091da177e4SLinus Torvalds } 32103110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 32111da177e4SLinus Torvalds return status; 3212c0eae66eSBenny Halevy out_overflow: 3213c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3214c0eae66eSBenny Halevy return -EIO; 32151da177e4SLinus Torvalds } 32161da177e4SLinus Torvalds 32177aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 32187aaa0b3bSManoj Naik { 3219464ad6b1SChuck Lever u32 n; 32208687b63aSAl Viro __be32 *p; 32217aaa0b3bSManoj Naik int status = 0; 32227aaa0b3bSManoj Naik 3223c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3224c0eae66eSBenny Halevy if (unlikely(!p)) 3225c0eae66eSBenny Halevy goto out_overflow; 3226cccddf4fSBenny Halevy n = be32_to_cpup(p); 322733a43f28SAndy Adamson if (n == 0) 322833a43f28SAndy Adamson goto root_path; 32297aaa0b3bSManoj Naik dprintk("path "); 32307aaa0b3bSManoj Naik path->ncomponents = 0; 32317aaa0b3bSManoj Naik while (path->ncomponents < n) { 32327aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 32337aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 32347aaa0b3bSManoj Naik if (unlikely(status != 0)) 32357aaa0b3bSManoj Naik goto out_eio; 32367aaa0b3bSManoj Naik if (path->ncomponents != n) 32377aaa0b3bSManoj Naik dprintk("/"); 32387aaa0b3bSManoj Naik dprintk("%s", component->data); 32397aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 32407aaa0b3bSManoj Naik path->ncomponents++; 32417aaa0b3bSManoj Naik else { 32427aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 32437aaa0b3bSManoj Naik goto out_eio; 32447aaa0b3bSManoj Naik } 32457aaa0b3bSManoj Naik } 32467aaa0b3bSManoj Naik out: 32477aaa0b3bSManoj Naik dprintk("\n"); 32487aaa0b3bSManoj Naik return status; 324933a43f28SAndy Adamson root_path: 325033a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 325133a43f28SAndy Adamson path->ncomponents = 1; 325233a43f28SAndy Adamson path->components[0].len=0; 325333a43f28SAndy Adamson path->components[0].data=NULL; 325433a43f28SAndy Adamson dprintk("path /\n"); 325533a43f28SAndy Adamson goto out; 32567aaa0b3bSManoj Naik out_eio: 32577aaa0b3bSManoj Naik dprintk(" status %d", status); 32587aaa0b3bSManoj Naik status = -EIO; 32597aaa0b3bSManoj Naik goto out; 3260c0eae66eSBenny Halevy out_overflow: 3261c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3262c0eae66eSBenny Halevy return -EIO; 32637aaa0b3bSManoj Naik } 32647aaa0b3bSManoj Naik 32657aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3266683b57b4STrond Myklebust { 3267683b57b4STrond Myklebust int n; 32688687b63aSAl Viro __be32 *p; 3269683b57b4STrond Myklebust int status = -EIO; 3270683b57b4STrond Myklebust 3271683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3272683b57b4STrond Myklebust goto out; 3273683b57b4STrond Myklebust status = 0; 3274683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3275683b57b4STrond Myklebust goto out; 32763110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 32777aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3278683b57b4STrond Myklebust if (unlikely(status != 0)) 3279683b57b4STrond Myklebust goto out; 3280c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3281c0eae66eSBenny Halevy if (unlikely(!p)) 3282c0eae66eSBenny Halevy goto out_overflow; 3283cccddf4fSBenny Halevy n = be32_to_cpup(p); 3284683b57b4STrond Myklebust if (n <= 0) 3285683b57b4STrond Myklebust goto out_eio; 3286683b57b4STrond Myklebust res->nlocations = 0; 3287683b57b4STrond Myklebust while (res->nlocations < n) { 3288464ad6b1SChuck Lever u32 m; 32897aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3290683b57b4STrond Myklebust 3291c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3292c0eae66eSBenny Halevy if (unlikely(!p)) 3293c0eae66eSBenny Halevy goto out_overflow; 3294cccddf4fSBenny Halevy m = be32_to_cpup(p); 32957aaa0b3bSManoj Naik 32967aaa0b3bSManoj Naik loc->nservers = 0; 32973110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 32987aaa0b3bSManoj Naik while (loc->nservers < m) { 32997aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 33007aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3301683b57b4STrond Myklebust if (unlikely(status != 0)) 3302683b57b4STrond Myklebust goto out_eio; 33037aaa0b3bSManoj Naik dprintk("%s ", server->data); 33047aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 33057aaa0b3bSManoj Naik loc->nservers++; 33067aaa0b3bSManoj Naik else { 3307464ad6b1SChuck Lever unsigned int i; 3308464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3309464ad6b1SChuck Lever "returned for location %u\n", 33103110ff80SHarvey Harrison __func__, 3311464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3312464ad6b1SChuck Lever m, res->nlocations); 33137aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 33142e42c3e2STrond Myklebust unsigned int len; 33157aaa0b3bSManoj Naik char *data; 33167aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3317683b57b4STrond Myklebust if (unlikely(status != 0)) 3318683b57b4STrond Myklebust goto out_eio; 33197aaa0b3bSManoj Naik } 33207aaa0b3bSManoj Naik } 33217aaa0b3bSManoj Naik } 33227aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 33237aaa0b3bSManoj Naik if (unlikely(status != 0)) 33247aaa0b3bSManoj Naik goto out_eio; 33257aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3326683b57b4STrond Myklebust res->nlocations++; 3327683b57b4STrond Myklebust } 3328409924e4STrond Myklebust if (res->nlocations != 0) 3329409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3330683b57b4STrond Myklebust out: 33313110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3332683b57b4STrond Myklebust return status; 3333c0eae66eSBenny Halevy out_overflow: 3334c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3335683b57b4STrond Myklebust out_eio: 3336683b57b4STrond Myklebust status = -EIO; 3337683b57b4STrond Myklebust goto out; 3338683b57b4STrond Myklebust } 3339683b57b4STrond Myklebust 33401da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 33411da177e4SLinus Torvalds { 33428687b63aSAl Viro __be32 *p; 33431da177e4SLinus Torvalds int status = 0; 33441da177e4SLinus Torvalds 33451da177e4SLinus Torvalds *res = 0; 33461da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 33471da177e4SLinus Torvalds return -EIO; 33481da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3349c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3350c0eae66eSBenny Halevy if (unlikely(!p)) 3351c0eae66eSBenny Halevy goto out_overflow; 3352cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 33531da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 33541da177e4SLinus Torvalds } 33553110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 33561da177e4SLinus Torvalds return status; 3357c0eae66eSBenny Halevy out_overflow: 3358c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3359c0eae66eSBenny Halevy return -EIO; 33601da177e4SLinus Torvalds } 33611da177e4SLinus Torvalds 33621da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 33631da177e4SLinus Torvalds { 33648687b63aSAl Viro __be32 *p; 33651da177e4SLinus Torvalds int status = 0; 33661da177e4SLinus Torvalds 33671da177e4SLinus Torvalds *maxlink = 1; 33681da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 33691da177e4SLinus Torvalds return -EIO; 33701da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3371c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3372c0eae66eSBenny Halevy if (unlikely(!p)) 3373c0eae66eSBenny Halevy goto out_overflow; 3374cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 33751da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 33761da177e4SLinus Torvalds } 33773110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 33781da177e4SLinus Torvalds return status; 3379c0eae66eSBenny Halevy out_overflow: 3380c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3381c0eae66eSBenny Halevy return -EIO; 33821da177e4SLinus Torvalds } 33831da177e4SLinus Torvalds 33841da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 33851da177e4SLinus Torvalds { 33868687b63aSAl Viro __be32 *p; 33871da177e4SLinus Torvalds int status = 0; 33881da177e4SLinus Torvalds 33891da177e4SLinus Torvalds *maxname = 1024; 33901da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 33911da177e4SLinus Torvalds return -EIO; 33921da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3393c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3394c0eae66eSBenny Halevy if (unlikely(!p)) 3395c0eae66eSBenny Halevy goto out_overflow; 3396cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 33971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 33981da177e4SLinus Torvalds } 33993110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 34001da177e4SLinus Torvalds return status; 3401c0eae66eSBenny Halevy out_overflow: 3402c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3403c0eae66eSBenny Halevy return -EIO; 34041da177e4SLinus Torvalds } 34051da177e4SLinus Torvalds 34061da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34071da177e4SLinus Torvalds { 34088687b63aSAl Viro __be32 *p; 34091da177e4SLinus Torvalds int status = 0; 34101da177e4SLinus Torvalds 34111da177e4SLinus Torvalds *res = 1024; 34121da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 34131da177e4SLinus Torvalds return -EIO; 34141da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 34151da177e4SLinus Torvalds uint64_t maxread; 3416c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3417c0eae66eSBenny Halevy if (unlikely(!p)) 3418c0eae66eSBenny Halevy goto out_overflow; 3419cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 34201da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 34211da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 34221da177e4SLinus Torvalds *res = (uint32_t)maxread; 34231da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 34241da177e4SLinus Torvalds } 34253110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 34261da177e4SLinus Torvalds return status; 3427c0eae66eSBenny Halevy out_overflow: 3428c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3429c0eae66eSBenny Halevy return -EIO; 34301da177e4SLinus Torvalds } 34311da177e4SLinus Torvalds 34321da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34331da177e4SLinus Torvalds { 34348687b63aSAl Viro __be32 *p; 34351da177e4SLinus Torvalds int status = 0; 34361da177e4SLinus Torvalds 34371da177e4SLinus Torvalds *res = 1024; 34381da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 34391da177e4SLinus Torvalds return -EIO; 34401da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 34411da177e4SLinus Torvalds uint64_t maxwrite; 3442c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3443c0eae66eSBenny Halevy if (unlikely(!p)) 3444c0eae66eSBenny Halevy goto out_overflow; 3445cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 34461da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 34471da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 34481da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 34491da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 34501da177e4SLinus Torvalds } 34513110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 34521da177e4SLinus Torvalds return status; 3453c0eae66eSBenny Halevy out_overflow: 3454c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3455c0eae66eSBenny Halevy return -EIO; 34561da177e4SLinus Torvalds } 34571da177e4SLinus Torvalds 3458bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 34591da177e4SLinus Torvalds { 3460bca79478STrond Myklebust uint32_t tmp; 34618687b63aSAl Viro __be32 *p; 3462409924e4STrond Myklebust int ret = 0; 34631da177e4SLinus Torvalds 34641da177e4SLinus Torvalds *mode = 0; 34651da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 34661da177e4SLinus Torvalds return -EIO; 34671da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3468c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3469c0eae66eSBenny Halevy if (unlikely(!p)) 3470c0eae66eSBenny Halevy goto out_overflow; 3471cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3472bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 34731da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3474409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 34751da177e4SLinus Torvalds } 34763110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3477409924e4STrond Myklebust return ret; 3478c0eae66eSBenny Halevy out_overflow: 3479c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3480c0eae66eSBenny Halevy return -EIO; 34811da177e4SLinus Torvalds } 34821da177e4SLinus Torvalds 34831da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 34841da177e4SLinus Torvalds { 34858687b63aSAl Viro __be32 *p; 3486409924e4STrond Myklebust int ret = 0; 34871da177e4SLinus Torvalds 34881da177e4SLinus Torvalds *nlink = 1; 34891da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 34901da177e4SLinus Torvalds return -EIO; 34911da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3492c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3493c0eae66eSBenny Halevy if (unlikely(!p)) 3494c0eae66eSBenny Halevy goto out_overflow; 3495cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 34961da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3497409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 34981da177e4SLinus Torvalds } 34993110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3500409924e4STrond Myklebust return ret; 3501c0eae66eSBenny Halevy out_overflow: 3502c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3503c0eae66eSBenny Halevy return -EIO; 35041da177e4SLinus Torvalds } 35051da177e4SLinus Torvalds 350680e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 3507e4fd72a1STrond Myklebust const struct nfs_server *server, uint32_t *uid, int may_sleep) 35081da177e4SLinus Torvalds { 35098687b63aSAl Viro uint32_t len; 35108687b63aSAl Viro __be32 *p; 3511409924e4STrond Myklebust int ret = 0; 35121da177e4SLinus Torvalds 35131da177e4SLinus Torvalds *uid = -2; 35141da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 35151da177e4SLinus Torvalds return -EIO; 35161da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3517c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3518c0eae66eSBenny Halevy if (unlikely(!p)) 3519c0eae66eSBenny Halevy goto out_overflow; 3520cccddf4fSBenny Halevy len = be32_to_cpup(p); 3521c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3522c0eae66eSBenny Halevy if (unlikely(!p)) 3523c0eae66eSBenny Halevy goto out_overflow; 352480e52aceSTrond Myklebust if (!may_sleep) { 352580e52aceSTrond Myklebust /* do nothing */ 352680e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3527e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3528409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3529409924e4STrond Myklebust else 35301da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 35313110ff80SHarvey Harrison __func__); 35321da177e4SLinus Torvalds } else 3533fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 35343110ff80SHarvey Harrison __func__, len); 35351da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 35361da177e4SLinus Torvalds } 35373110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3538409924e4STrond Myklebust return ret; 3539c0eae66eSBenny Halevy out_overflow: 3540c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3541c0eae66eSBenny Halevy return -EIO; 35421da177e4SLinus Torvalds } 35431da177e4SLinus Torvalds 354480e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 3545e4fd72a1STrond Myklebust const struct nfs_server *server, uint32_t *gid, int may_sleep) 35461da177e4SLinus Torvalds { 35478687b63aSAl Viro uint32_t len; 35488687b63aSAl Viro __be32 *p; 3549409924e4STrond Myklebust int ret = 0; 35501da177e4SLinus Torvalds 35511da177e4SLinus Torvalds *gid = -2; 35521da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 35531da177e4SLinus Torvalds return -EIO; 35541da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3555c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3556c0eae66eSBenny Halevy if (unlikely(!p)) 3557c0eae66eSBenny Halevy goto out_overflow; 3558cccddf4fSBenny Halevy len = be32_to_cpup(p); 3559c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3560c0eae66eSBenny Halevy if (unlikely(!p)) 3561c0eae66eSBenny Halevy goto out_overflow; 356280e52aceSTrond Myklebust if (!may_sleep) { 356380e52aceSTrond Myklebust /* do nothing */ 356480e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3565e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3566409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3567409924e4STrond Myklebust else 35681da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 35693110ff80SHarvey Harrison __func__); 35701da177e4SLinus Torvalds } else 3571fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 35723110ff80SHarvey Harrison __func__, len); 35731da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 35741da177e4SLinus Torvalds } 35753110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3576409924e4STrond Myklebust return ret; 3577c0eae66eSBenny Halevy out_overflow: 3578c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3579c0eae66eSBenny Halevy return -EIO; 35801da177e4SLinus Torvalds } 35811da177e4SLinus Torvalds 35821da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 35831da177e4SLinus Torvalds { 35848687b63aSAl Viro uint32_t major = 0, minor = 0; 35858687b63aSAl Viro __be32 *p; 3586409924e4STrond Myklebust int ret = 0; 35871da177e4SLinus Torvalds 35881da177e4SLinus Torvalds *rdev = MKDEV(0,0); 35891da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 35901da177e4SLinus Torvalds return -EIO; 35911da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 35921da177e4SLinus Torvalds dev_t tmp; 35931da177e4SLinus Torvalds 3594c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3595c0eae66eSBenny Halevy if (unlikely(!p)) 3596c0eae66eSBenny Halevy goto out_overflow; 35976f723f77SBenny Halevy major = be32_to_cpup(p++); 3598cccddf4fSBenny Halevy minor = be32_to_cpup(p); 35991da177e4SLinus Torvalds tmp = MKDEV(major, minor); 36001da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 36011da177e4SLinus Torvalds *rdev = tmp; 36021da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3603409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 36041da177e4SLinus Torvalds } 36053110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3606409924e4STrond Myklebust return ret; 3607c0eae66eSBenny Halevy out_overflow: 3608c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3609c0eae66eSBenny Halevy return -EIO; 36101da177e4SLinus Torvalds } 36111da177e4SLinus Torvalds 36121da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36131da177e4SLinus Torvalds { 36148687b63aSAl Viro __be32 *p; 36151da177e4SLinus Torvalds int status = 0; 36161da177e4SLinus Torvalds 36171da177e4SLinus Torvalds *res = 0; 36181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 36191da177e4SLinus Torvalds return -EIO; 36201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3621c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3622c0eae66eSBenny Halevy if (unlikely(!p)) 3623c0eae66eSBenny Halevy goto out_overflow; 3624cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 36261da177e4SLinus Torvalds } 36273110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 36281da177e4SLinus Torvalds return status; 3629c0eae66eSBenny Halevy out_overflow: 3630c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3631c0eae66eSBenny Halevy return -EIO; 36321da177e4SLinus Torvalds } 36331da177e4SLinus Torvalds 36341da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36351da177e4SLinus Torvalds { 36368687b63aSAl Viro __be32 *p; 36371da177e4SLinus Torvalds int status = 0; 36381da177e4SLinus Torvalds 36391da177e4SLinus Torvalds *res = 0; 36401da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 36411da177e4SLinus Torvalds return -EIO; 36421da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3643c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3644c0eae66eSBenny Halevy if (unlikely(!p)) 3645c0eae66eSBenny Halevy goto out_overflow; 3646cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36471da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 36481da177e4SLinus Torvalds } 36493110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 36501da177e4SLinus Torvalds return status; 3651c0eae66eSBenny Halevy out_overflow: 3652c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3653c0eae66eSBenny Halevy return -EIO; 36541da177e4SLinus Torvalds } 36551da177e4SLinus Torvalds 36561da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36571da177e4SLinus Torvalds { 36588687b63aSAl Viro __be32 *p; 36591da177e4SLinus Torvalds int status = 0; 36601da177e4SLinus Torvalds 36611da177e4SLinus Torvalds *res = 0; 36621da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 36631da177e4SLinus Torvalds return -EIO; 36641da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3665c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3666c0eae66eSBenny Halevy if (unlikely(!p)) 3667c0eae66eSBenny Halevy goto out_overflow; 3668cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36691da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 36701da177e4SLinus Torvalds } 36713110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 36721da177e4SLinus Torvalds return status; 3673c0eae66eSBenny Halevy out_overflow: 3674c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3675c0eae66eSBenny Halevy return -EIO; 36761da177e4SLinus Torvalds } 36771da177e4SLinus Torvalds 36781da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 36791da177e4SLinus Torvalds { 36808687b63aSAl Viro __be32 *p; 3681409924e4STrond Myklebust int ret = 0; 36821da177e4SLinus Torvalds 36831da177e4SLinus Torvalds *used = 0; 36841da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 36851da177e4SLinus Torvalds return -EIO; 36861da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3687c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3688c0eae66eSBenny Halevy if (unlikely(!p)) 3689c0eae66eSBenny Halevy goto out_overflow; 3690cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 36911da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3692409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 36931da177e4SLinus Torvalds } 36943110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 36951da177e4SLinus Torvalds (unsigned long long)*used); 3696409924e4STrond Myklebust return ret; 3697c0eae66eSBenny Halevy out_overflow: 3698c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3699c0eae66eSBenny Halevy return -EIO; 37001da177e4SLinus Torvalds } 37011da177e4SLinus Torvalds 37021da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 37031da177e4SLinus Torvalds { 37048687b63aSAl Viro __be32 *p; 37051da177e4SLinus Torvalds uint64_t sec; 37061da177e4SLinus Torvalds uint32_t nsec; 37071da177e4SLinus Torvalds 3708c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3709c0eae66eSBenny Halevy if (unlikely(!p)) 3710c0eae66eSBenny Halevy goto out_overflow; 37113ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 3712cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 37131da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 37141da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 37151da177e4SLinus Torvalds return 0; 3716c0eae66eSBenny Halevy out_overflow: 3717c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3718c0eae66eSBenny Halevy return -EIO; 37191da177e4SLinus Torvalds } 37201da177e4SLinus Torvalds 37211da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 37221da177e4SLinus Torvalds { 37231da177e4SLinus Torvalds int status = 0; 37241da177e4SLinus Torvalds 37251da177e4SLinus Torvalds time->tv_sec = 0; 37261da177e4SLinus Torvalds time->tv_nsec = 0; 37271da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 37281da177e4SLinus Torvalds return -EIO; 37291da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 37301da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3731409924e4STrond Myklebust if (status == 0) 3732409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 37331da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 37341da177e4SLinus Torvalds } 37353110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 37361da177e4SLinus Torvalds return status; 37371da177e4SLinus Torvalds } 37381da177e4SLinus Torvalds 37391da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 37401da177e4SLinus Torvalds { 37411da177e4SLinus Torvalds int status = 0; 37421da177e4SLinus Torvalds 37431da177e4SLinus Torvalds time->tv_sec = 0; 37441da177e4SLinus Torvalds time->tv_nsec = 0; 37451da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 37461da177e4SLinus Torvalds return -EIO; 37471da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 37481da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3749409924e4STrond Myklebust if (status == 0) 3750409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 37511da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 37521da177e4SLinus Torvalds } 37533110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 37541da177e4SLinus Torvalds return status; 37551da177e4SLinus Torvalds } 37561da177e4SLinus Torvalds 375755b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 375855b6e774SRicardo Labiaga struct timespec *time) 375955b6e774SRicardo Labiaga { 376055b6e774SRicardo Labiaga int status = 0; 376155b6e774SRicardo Labiaga 376255b6e774SRicardo Labiaga time->tv_sec = 0; 376355b6e774SRicardo Labiaga time->tv_nsec = 0; 376455b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 376555b6e774SRicardo Labiaga return -EIO; 376655b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 376755b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 376855b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 376955b6e774SRicardo Labiaga } 377055b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 377155b6e774SRicardo Labiaga (long)time->tv_nsec); 377255b6e774SRicardo Labiaga return status; 377355b6e774SRicardo Labiaga } 377455b6e774SRicardo Labiaga 37751da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 37761da177e4SLinus Torvalds { 37771da177e4SLinus Torvalds int status = 0; 37781da177e4SLinus Torvalds 37791da177e4SLinus Torvalds time->tv_sec = 0; 37801da177e4SLinus Torvalds time->tv_nsec = 0; 37811da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 37821da177e4SLinus Torvalds return -EIO; 37831da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 37841da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 3785409924e4STrond Myklebust if (status == 0) 3786409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 37871da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 37881da177e4SLinus Torvalds } 37893110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 37901da177e4SLinus Torvalds return status; 37911da177e4SLinus Torvalds } 37921da177e4SLinus Torvalds 37938687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 37941da177e4SLinus Torvalds { 37951da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 37961da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 37971da177e4SLinus Torvalds 37981da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 3799fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 3800fe82a183SChuck Lever "%u %c %u\n", 38013110ff80SHarvey Harrison __func__, 38021da177e4SLinus Torvalds attrwords << 2, 38031da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 38041da177e4SLinus Torvalds nwords << 2); 38051da177e4SLinus Torvalds return -EIO; 38061da177e4SLinus Torvalds } 38071da177e4SLinus Torvalds return 0; 38081da177e4SLinus Torvalds } 38091da177e4SLinus Torvalds 38101da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 38111da177e4SLinus Torvalds { 38128687b63aSAl Viro __be32 *p; 38131da177e4SLinus Torvalds 3814c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 3815c0eae66eSBenny Halevy if (unlikely(!p)) 3816c0eae66eSBenny Halevy goto out_overflow; 38176f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 38183ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 3819cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 38201da177e4SLinus Torvalds return 0; 3821c0eae66eSBenny Halevy out_overflow: 3822c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3823c0eae66eSBenny Halevy return -EIO; 38241da177e4SLinus Torvalds } 38251da177e4SLinus Torvalds 38261da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 38271da177e4SLinus Torvalds { 38288687b63aSAl Viro __be32 *p; 38291da177e4SLinus Torvalds uint32_t supp, acc; 38301da177e4SLinus Torvalds int status; 38311da177e4SLinus Torvalds 38321da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 38331da177e4SLinus Torvalds if (status) 38341da177e4SLinus Torvalds return status; 3835c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3836c0eae66eSBenny Halevy if (unlikely(!p)) 3837c0eae66eSBenny Halevy goto out_overflow; 38386f723f77SBenny Halevy supp = be32_to_cpup(p++); 3839cccddf4fSBenny Halevy acc = be32_to_cpup(p); 38401da177e4SLinus Torvalds access->supported = supp; 38411da177e4SLinus Torvalds access->access = acc; 38421da177e4SLinus Torvalds return 0; 3843c0eae66eSBenny Halevy out_overflow: 3844c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3845c0eae66eSBenny Halevy return -EIO; 38461da177e4SLinus Torvalds } 38471da177e4SLinus Torvalds 384807d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 38491da177e4SLinus Torvalds { 38508687b63aSAl Viro __be32 *p; 385107d30434SBenny Halevy 385207d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 385307d30434SBenny Halevy if (likely(p)) { 385407d30434SBenny Halevy memcpy(buf, p, len); 385507d30434SBenny Halevy return 0; 385607d30434SBenny Halevy } 385707d30434SBenny Halevy print_overflow_msg(__func__, xdr); 385807d30434SBenny Halevy return -EIO; 385907d30434SBenny Halevy } 386007d30434SBenny Halevy 386107d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 386207d30434SBenny Halevy { 386307d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 38641da177e4SLinus Torvalds } 38651da177e4SLinus Torvalds 38661da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 38671da177e4SLinus Torvalds { 38681da177e4SLinus Torvalds int status; 38691da177e4SLinus Torvalds 38701da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 3871c1d51931STrond Myklebust if (status != -EIO) 3872c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 387307d30434SBenny Halevy if (!status) 387407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 38751da177e4SLinus Torvalds return status; 38761da177e4SLinus Torvalds } 38771da177e4SLinus Torvalds 3878db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 3879db942bbdSBenny Halevy { 3880db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 38811da177e4SLinus Torvalds } 38821da177e4SLinus Torvalds 38831da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 38841da177e4SLinus Torvalds { 38851da177e4SLinus Torvalds int status; 38861da177e4SLinus Torvalds 38871da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 3888db942bbdSBenny Halevy if (!status) 3889db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 38901da177e4SLinus Torvalds return status; 38911da177e4SLinus Torvalds } 38921da177e4SLinus Torvalds 38931da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 38941da177e4SLinus Torvalds { 38958687b63aSAl Viro __be32 *p; 38961da177e4SLinus Torvalds uint32_t bmlen; 38971da177e4SLinus Torvalds int status; 38981da177e4SLinus Torvalds 38991da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 39001da177e4SLinus Torvalds if (status) 39011da177e4SLinus Torvalds return status; 39021da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 39031da177e4SLinus Torvalds return status; 3904c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3905c0eae66eSBenny Halevy if (unlikely(!p)) 3906c0eae66eSBenny Halevy goto out_overflow; 3907cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 3908c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 3909c0eae66eSBenny Halevy if (likely(p)) 39101da177e4SLinus Torvalds return 0; 3911c0eae66eSBenny Halevy out_overflow: 3912c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3913c0eae66eSBenny Halevy return -EIO; 39141da177e4SLinus Torvalds } 39151da177e4SLinus Torvalds 39161da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 39171da177e4SLinus Torvalds { 39188687b63aSAl Viro __be32 *savep; 39196c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 39201da177e4SLinus Torvalds int status; 39211da177e4SLinus Torvalds 39221da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 39231da177e4SLinus Torvalds goto xdr_error; 39241da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 39251da177e4SLinus Torvalds goto xdr_error; 39261da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 39271da177e4SLinus Torvalds goto xdr_error; 39281da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 39291da177e4SLinus Torvalds goto xdr_error; 39301da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 39311da177e4SLinus Torvalds goto xdr_error; 39321da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 39331da177e4SLinus Torvalds goto xdr_error; 39341da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 39351da177e4SLinus Torvalds goto xdr_error; 39361da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 39371da177e4SLinus Torvalds xdr_error: 39383110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 39391da177e4SLinus Torvalds return status; 39401da177e4SLinus Torvalds } 39411da177e4SLinus Torvalds 39421da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 39431da177e4SLinus Torvalds { 39448687b63aSAl Viro __be32 *savep; 39456c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 39461da177e4SLinus Torvalds int status; 39471da177e4SLinus Torvalds 39481da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 39491da177e4SLinus Torvalds goto xdr_error; 39501da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 39511da177e4SLinus Torvalds goto xdr_error; 39521da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 39531da177e4SLinus Torvalds goto xdr_error; 39541da177e4SLinus Torvalds 39551da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 39561da177e4SLinus Torvalds goto xdr_error; 39571da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 39581da177e4SLinus Torvalds goto xdr_error; 39591da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 39601da177e4SLinus Torvalds goto xdr_error; 39611da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 39621da177e4SLinus Torvalds goto xdr_error; 39631da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 39641da177e4SLinus Torvalds goto xdr_error; 39651da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 39661da177e4SLinus Torvalds goto xdr_error; 39671da177e4SLinus Torvalds 39681da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 39691da177e4SLinus Torvalds xdr_error: 39703110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 39711da177e4SLinus Torvalds return status; 39721da177e4SLinus Torvalds } 39731da177e4SLinus Torvalds 39741da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 39751da177e4SLinus Torvalds { 39768687b63aSAl Viro __be32 *savep; 39776c0195a4SAndy Adamson uint32_t attrlen, bitmap[2] = {0}; 39781da177e4SLinus Torvalds int status; 39791da177e4SLinus Torvalds 39801da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 39811da177e4SLinus Torvalds goto xdr_error; 39821da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 39831da177e4SLinus Torvalds goto xdr_error; 39841da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 39851da177e4SLinus Torvalds goto xdr_error; 39861da177e4SLinus Torvalds 39871da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 39881da177e4SLinus Torvalds goto xdr_error; 39891da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 39901da177e4SLinus Torvalds goto xdr_error; 39911da177e4SLinus Torvalds 39921da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 39931da177e4SLinus Torvalds xdr_error: 39943110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 39951da177e4SLinus Torvalds return status; 39961da177e4SLinus Torvalds } 39971da177e4SLinus Torvalds 3998ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 3999ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 400080e52aceSTrond Myklebust const struct nfs_server *server, int may_sleep) 40011da177e4SLinus Torvalds { 4002bca79478STrond Myklebust int status; 4003bca79478STrond Myklebust umode_t fmode = 0; 4004ae42c70aSBryan Schumaker uint32_t type; 40051da177e4SLinus Torvalds 4006f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4007f26c7a78STrond Myklebust if (status < 0) 40081da177e4SLinus Torvalds goto xdr_error; 4009409924e4STrond Myklebust fattr->mode = 0; 4010409924e4STrond Myklebust if (status != 0) { 4011409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4012409924e4STrond Myklebust fattr->valid |= status; 4013409924e4STrond Myklebust } 40141da177e4SLinus Torvalds 4015f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4016f26c7a78STrond Myklebust if (status < 0) 40171da177e4SLinus Torvalds goto xdr_error; 4018409924e4STrond Myklebust fattr->valid |= status; 4019f26c7a78STrond Myklebust 4020f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4021f26c7a78STrond Myklebust if (status < 0) 40221da177e4SLinus Torvalds goto xdr_error; 4023409924e4STrond Myklebust fattr->valid |= status; 4024f26c7a78STrond Myklebust 4025f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4026f26c7a78STrond Myklebust if (status < 0) 40271da177e4SLinus Torvalds goto xdr_error; 4028409924e4STrond Myklebust fattr->valid |= status; 4029f26c7a78STrond Myklebust 4030ae42c70aSBryan Schumaker status = decode_attr_error(xdr, bitmap); 40317ebb9315SBryan Schumaker if (status == -NFS4ERR_WRONGSEC) { 40327ebb9315SBryan Schumaker nfs_fixup_secinfo_attributes(fattr, fh); 40337ebb9315SBryan Schumaker status = 0; 40347ebb9315SBryan Schumaker } 4035ae42c70aSBryan Schumaker if (status < 0) 4036ae42c70aSBryan Schumaker goto xdr_error; 4037ae42c70aSBryan Schumaker 4038ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4039ae42c70aSBryan Schumaker if (status < 0) 4040ae42c70aSBryan Schumaker goto xdr_error; 4041ae42c70aSBryan Schumaker 4042f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4043f26c7a78STrond Myklebust if (status < 0) 40441da177e4SLinus Torvalds goto xdr_error; 4045409924e4STrond Myklebust fattr->valid |= status; 4046f26c7a78STrond Myklebust 4047f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 40487aaa0b3bSManoj Naik struct nfs4_fs_locations, 4049f26c7a78STrond Myklebust fattr)); 4050f26c7a78STrond Myklebust if (status < 0) 4051683b57b4STrond Myklebust goto xdr_error; 4052409924e4STrond Myklebust fattr->valid |= status; 4053f26c7a78STrond Myklebust 4054f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4055f26c7a78STrond Myklebust if (status < 0) 40561da177e4SLinus Torvalds goto xdr_error; 4057409924e4STrond Myklebust if (status != 0) { 40581da177e4SLinus Torvalds fattr->mode |= fmode; 4059409924e4STrond Myklebust fattr->valid |= status; 4060409924e4STrond Myklebust } 4061f26c7a78STrond Myklebust 4062f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4063f26c7a78STrond Myklebust if (status < 0) 40641da177e4SLinus Torvalds goto xdr_error; 4065409924e4STrond Myklebust fattr->valid |= status; 4066f26c7a78STrond Myklebust 4067e4fd72a1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, may_sleep); 4068f26c7a78STrond Myklebust if (status < 0) 40691da177e4SLinus Torvalds goto xdr_error; 4070409924e4STrond Myklebust fattr->valid |= status; 4071f26c7a78STrond Myklebust 4072e4fd72a1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, may_sleep); 4073f26c7a78STrond Myklebust if (status < 0) 40741da177e4SLinus Torvalds goto xdr_error; 4075409924e4STrond Myklebust fattr->valid |= status; 4076f26c7a78STrond Myklebust 4077f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4078f26c7a78STrond Myklebust if (status < 0) 40791da177e4SLinus Torvalds goto xdr_error; 4080409924e4STrond Myklebust fattr->valid |= status; 4081f26c7a78STrond Myklebust 4082f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4083f26c7a78STrond Myklebust if (status < 0) 40841da177e4SLinus Torvalds goto xdr_error; 4085409924e4STrond Myklebust fattr->valid |= status; 4086f26c7a78STrond Myklebust 4087f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4088f26c7a78STrond Myklebust if (status < 0) 40891da177e4SLinus Torvalds goto xdr_error; 4090409924e4STrond Myklebust fattr->valid |= status; 4091f26c7a78STrond Myklebust 4092f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4093f26c7a78STrond Myklebust if (status < 0) 40941da177e4SLinus Torvalds goto xdr_error; 4095409924e4STrond Myklebust fattr->valid |= status; 4096f26c7a78STrond Myklebust 4097f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4098f26c7a78STrond Myklebust if (status < 0) 40991da177e4SLinus Torvalds goto xdr_error; 4100409924e4STrond Myklebust fattr->valid |= status; 4101f26c7a78STrond Myklebust 410228331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4103f26c7a78STrond Myklebust if (status < 0) 410499baf625SManoj Naik goto xdr_error; 4105409924e4STrond Myklebust fattr->valid |= status; 4106f26c7a78STrond Myklebust 4107ae42c70aSBryan Schumaker xdr_error: 4108ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4109ae42c70aSBryan Schumaker return status; 4110ae42c70aSBryan Schumaker } 4111ae42c70aSBryan Schumaker 4112ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4113ae42c70aSBryan Schumaker struct nfs_fh *fh, const struct nfs_server *server, int may_sleep) 4114ae42c70aSBryan Schumaker { 4115ae42c70aSBryan Schumaker __be32 *savep; 4116ae42c70aSBryan Schumaker uint32_t attrlen, 4117ae42c70aSBryan Schumaker bitmap[2] = {0}; 4118ae42c70aSBryan Schumaker int status; 4119ae42c70aSBryan Schumaker 4120ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4121ae42c70aSBryan Schumaker if (status < 0) 4122ae42c70aSBryan Schumaker goto xdr_error; 4123ae42c70aSBryan Schumaker 4124ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4125ae42c70aSBryan Schumaker if (status < 0) 4126ae42c70aSBryan Schumaker goto xdr_error; 4127ae42c70aSBryan Schumaker 4128ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4129ae42c70aSBryan Schumaker if (status < 0) 4130ae42c70aSBryan Schumaker goto xdr_error; 4131ae42c70aSBryan Schumaker 4132ae42c70aSBryan Schumaker status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep); 4133ae42c70aSBryan Schumaker if (status < 0) 4134ae42c70aSBryan Schumaker goto xdr_error; 4135ae42c70aSBryan Schumaker 4136f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 41371da177e4SLinus Torvalds xdr_error: 41383110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 41391da177e4SLinus Torvalds return status; 41401da177e4SLinus Torvalds } 41411da177e4SLinus Torvalds 4142ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 4143ae42c70aSBryan Schumaker const struct nfs_server *server, int may_sleep) 4144ae42c70aSBryan Schumaker { 4145ae42c70aSBryan Schumaker return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep); 4146ae42c70aSBryan Schumaker } 41471da177e4SLinus Torvalds 4148504913fbSAndy Adamson /* 4149504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4150504913fbSAndy Adamson * one layout driver per file system. 4151504913fbSAndy Adamson */ 4152504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4153504913fbSAndy Adamson uint32_t *layouttype) 4154504913fbSAndy Adamson { 4155504913fbSAndy Adamson uint32_t *p; 4156504913fbSAndy Adamson int num; 4157504913fbSAndy Adamson 4158504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4159504913fbSAndy Adamson if (unlikely(!p)) 4160504913fbSAndy Adamson goto out_overflow; 4161504913fbSAndy Adamson num = be32_to_cpup(p); 4162504913fbSAndy Adamson 4163504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4164504913fbSAndy Adamson if (num == 0) { 4165504913fbSAndy Adamson *layouttype = 0; 4166504913fbSAndy Adamson return 0; 4167504913fbSAndy Adamson } 4168504913fbSAndy Adamson if (num > 1) 4169504913fbSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers " 4170504913fbSAndy Adamson "per filesystem not supported\n", __func__); 4171504913fbSAndy Adamson 4172504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4173504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4174504913fbSAndy Adamson if (unlikely(!p)) 4175504913fbSAndy Adamson goto out_overflow; 4176504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4177504913fbSAndy Adamson return 0; 4178504913fbSAndy Adamson out_overflow: 4179504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4180504913fbSAndy Adamson return -EIO; 4181504913fbSAndy Adamson } 4182504913fbSAndy Adamson 4183504913fbSAndy Adamson /* 4184504913fbSAndy Adamson * The type of file system exported. 4185504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4186504913fbSAndy Adamson */ 4187504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4188504913fbSAndy Adamson uint32_t *layouttype) 4189504913fbSAndy Adamson { 4190504913fbSAndy Adamson int status = 0; 4191504913fbSAndy Adamson 4192504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4193504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4194504913fbSAndy Adamson return -EIO; 4195504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4196504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4197504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4198504913fbSAndy Adamson } else 4199504913fbSAndy Adamson *layouttype = 0; 4200504913fbSAndy Adamson return status; 4201504913fbSAndy Adamson } 4202504913fbSAndy Adamson 42031da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 42041da177e4SLinus Torvalds { 42058687b63aSAl Viro __be32 *savep; 42061da177e4SLinus Torvalds uint32_t attrlen, bitmap[2]; 42071da177e4SLinus Torvalds int status; 42081da177e4SLinus Torvalds 42091da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42101da177e4SLinus Torvalds goto xdr_error; 42111da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42121da177e4SLinus Torvalds goto xdr_error; 42131da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42141da177e4SLinus Torvalds goto xdr_error; 42151da177e4SLinus Torvalds 42161da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 42171da177e4SLinus Torvalds 42181da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 42191da177e4SLinus Torvalds goto xdr_error; 42201da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 42211da177e4SLinus Torvalds goto xdr_error; 42221da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 42231da177e4SLinus Torvalds goto xdr_error; 42241da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 42251da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 42261da177e4SLinus Torvalds goto xdr_error; 42271da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 422855b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 422955b6e774SRicardo Labiaga if (status != 0) 423055b6e774SRicardo Labiaga goto xdr_error; 4231504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4232504913fbSAndy Adamson if (status != 0) 4233504913fbSAndy Adamson goto xdr_error; 42341da177e4SLinus Torvalds 42351da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42361da177e4SLinus Torvalds xdr_error: 42373110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42381da177e4SLinus Torvalds return status; 42391da177e4SLinus Torvalds } 42401da177e4SLinus Torvalds 42411da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 42421da177e4SLinus Torvalds { 42438687b63aSAl Viro __be32 *p; 42441da177e4SLinus Torvalds uint32_t len; 42451da177e4SLinus Torvalds int status; 42461da177e4SLinus Torvalds 42479936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 42489936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 42499936781dSTrond Myklebust 42501da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 42511da177e4SLinus Torvalds if (status) 42521da177e4SLinus Torvalds return status; 42531da177e4SLinus Torvalds 4254c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4255c0eae66eSBenny Halevy if (unlikely(!p)) 4256c0eae66eSBenny Halevy goto out_overflow; 4257cccddf4fSBenny Halevy len = be32_to_cpup(p); 42581da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 42591da177e4SLinus Torvalds return -EIO; 42601da177e4SLinus Torvalds fh->size = len; 4261c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4262c0eae66eSBenny Halevy if (unlikely(!p)) 4263c0eae66eSBenny Halevy goto out_overflow; 426499398d06SBenny Halevy memcpy(fh->data, p, len); 42651da177e4SLinus Torvalds return 0; 4266c0eae66eSBenny Halevy out_overflow: 4267c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4268c0eae66eSBenny Halevy return -EIO; 42691da177e4SLinus Torvalds } 42701da177e4SLinus Torvalds 42711da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42721da177e4SLinus Torvalds { 42731da177e4SLinus Torvalds int status; 42741da177e4SLinus Torvalds 42751da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 42761da177e4SLinus Torvalds if (status) 42771da177e4SLinus Torvalds return status; 42781da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 42791da177e4SLinus Torvalds } 42801da177e4SLinus Torvalds 42811da177e4SLinus Torvalds /* 42821da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 42831da177e4SLinus Torvalds */ 4284911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 42851da177e4SLinus Torvalds { 4286911d1aafSTrond Myklebust uint64_t offset, length, clientid; 42878687b63aSAl Viro __be32 *p; 4288911d1aafSTrond Myklebust uint32_t namelen, type; 42891da177e4SLinus Torvalds 4290babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4291c0eae66eSBenny Halevy if (unlikely(!p)) 4292c0eae66eSBenny Halevy goto out_overflow; 4293babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 42943ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4295babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4296babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4297911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4298911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4299911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4300911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4301911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4302911d1aafSTrond Myklebust if (type & 1) 4303911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4304911d1aafSTrond Myklebust fl->fl_pid = 0; 4305911d1aafSTrond Myklebust } 4306babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4307babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4308babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4309c0eae66eSBenny Halevy if (likely(p)) 43101da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4311c0eae66eSBenny Halevy out_overflow: 4312c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4313c0eae66eSBenny Halevy return -EIO; 43141da177e4SLinus Torvalds } 43151da177e4SLinus Torvalds 4316911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 43171da177e4SLinus Torvalds { 43181da177e4SLinus Torvalds int status; 43191da177e4SLinus Torvalds 43201da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4321c1d51931STrond Myklebust if (status == -EIO) 4322c1d51931STrond Myklebust goto out; 43231da177e4SLinus Torvalds if (status == 0) { 432407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 432507d30434SBenny Halevy if (unlikely(status)) 432607d30434SBenny Halevy goto out; 43271da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4328c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4329c1d51931STrond Myklebust if (res->open_seqid != NULL) 4330c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4331c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4332c1d51931STrond Myklebust out: 43331da177e4SLinus Torvalds return status; 43341da177e4SLinus Torvalds } 43351da177e4SLinus Torvalds 4336911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 43371da177e4SLinus Torvalds { 43381da177e4SLinus Torvalds int status; 43391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 43401da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4341911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 43421da177e4SLinus Torvalds return status; 43431da177e4SLinus Torvalds } 43441da177e4SLinus Torvalds 4345911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 43461da177e4SLinus Torvalds { 43471da177e4SLinus Torvalds int status; 43481da177e4SLinus Torvalds 43491da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4350c1d51931STrond Myklebust if (status != -EIO) 4351c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 435207d30434SBenny Halevy if (status == 0) 435307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 43541da177e4SLinus Torvalds return status; 43551da177e4SLinus Torvalds } 43561da177e4SLinus Torvalds 4357d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4358d3c7b7ccSTrond Myklebust { 4359d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4360d3c7b7ccSTrond Myklebust } 4361d3c7b7ccSTrond Myklebust 43621da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 43631da177e4SLinus Torvalds { 43641da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 43651da177e4SLinus Torvalds } 43661da177e4SLinus Torvalds 43671da177e4SLinus Torvalds /* This is too sick! */ 43681da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 43691da177e4SLinus Torvalds { 43708687b63aSAl Viro __be32 *p; 43711da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 43721da177e4SLinus Torvalds 4373c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4374c0eae66eSBenny Halevy if (unlikely(!p)) 4375c0eae66eSBenny Halevy goto out_overflow; 43766f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 43771da177e4SLinus Torvalds switch (limit_type) { 43781da177e4SLinus Torvalds case 1: 4379cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 43801da177e4SLinus Torvalds break; 43811da177e4SLinus Torvalds case 2: 43826f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4383cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 43841da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 43851da177e4SLinus Torvalds } 43861da177e4SLinus Torvalds return 0; 4387c0eae66eSBenny Halevy out_overflow: 4388c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4389c0eae66eSBenny Halevy return -EIO; 43901da177e4SLinus Torvalds } 43911da177e4SLinus Torvalds 43921da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 43931da177e4SLinus Torvalds { 43948687b63aSAl Viro __be32 *p; 43951da177e4SLinus Torvalds uint32_t delegation_type; 439607d30434SBenny Halevy int status; 43971da177e4SLinus Torvalds 4398c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4399c0eae66eSBenny Halevy if (unlikely(!p)) 4400c0eae66eSBenny Halevy goto out_overflow; 4401cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 44021da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 44031da177e4SLinus Torvalds res->delegation_type = 0; 44041da177e4SLinus Torvalds return 0; 44051da177e4SLinus Torvalds } 440607d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 440707d30434SBenny Halevy if (unlikely(status)) 440807d30434SBenny Halevy return status; 4409c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4410c0eae66eSBenny Halevy if (unlikely(!p)) 4411c0eae66eSBenny Halevy goto out_overflow; 4412cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 441305d564feSAndy Adamson 44141da177e4SLinus Torvalds switch (delegation_type) { 44151da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 44161da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 44171da177e4SLinus Torvalds break; 44181da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 44191da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 44201da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 44211da177e4SLinus Torvalds return -EIO; 44221da177e4SLinus Torvalds } 44237539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4424c0eae66eSBenny Halevy out_overflow: 4425c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4426c0eae66eSBenny Halevy return -EIO; 44271da177e4SLinus Torvalds } 44281da177e4SLinus Torvalds 44291da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 44301da177e4SLinus Torvalds { 44318687b63aSAl Viro __be32 *p; 4432aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 44331da177e4SLinus Torvalds int status; 44341da177e4SLinus Torvalds 44351da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4436c1d51931STrond Myklebust if (status != -EIO) 4437c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 443807d30434SBenny Halevy if (!status) 443907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 444007d30434SBenny Halevy if (unlikely(status)) 44411da177e4SLinus Torvalds return status; 44421da177e4SLinus Torvalds 44431da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 44441da177e4SLinus Torvalds 4445c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4446c0eae66eSBenny Halevy if (unlikely(!p)) 4447c0eae66eSBenny Halevy goto out_overflow; 44486f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4449cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 44501da177e4SLinus Torvalds if (bmlen > 10) 44511da177e4SLinus Torvalds goto xdr_error; 44521da177e4SLinus Torvalds 4453c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4454c0eae66eSBenny Halevy if (unlikely(!p)) 4455c0eae66eSBenny Halevy goto out_overflow; 4456aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4457aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 44586f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4459aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4460aa53ed54SJeff Layton res->attrset[i] = 0; 4461aa53ed54SJeff Layton 44621da177e4SLinus Torvalds return decode_delegation(xdr, res); 44631da177e4SLinus Torvalds xdr_error: 44643110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 44651da177e4SLinus Torvalds return -EIO; 4466c0eae66eSBenny Halevy out_overflow: 4467c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4468c0eae66eSBenny Halevy return -EIO; 44691da177e4SLinus Torvalds } 44701da177e4SLinus Torvalds 44711da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 44721da177e4SLinus Torvalds { 44731da177e4SLinus Torvalds int status; 44741da177e4SLinus Torvalds 44751da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4476c1d51931STrond Myklebust if (status != -EIO) 4477c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 447807d30434SBenny Halevy if (!status) 447907d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 44801da177e4SLinus Torvalds return status; 44811da177e4SLinus Torvalds } 44821da177e4SLinus Torvalds 44831da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 44841da177e4SLinus Torvalds { 44851da177e4SLinus Torvalds int status; 44861da177e4SLinus Torvalds 44871da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4488c1d51931STrond Myklebust if (status != -EIO) 4489c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 449007d30434SBenny Halevy if (!status) 449107d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 44921da177e4SLinus Torvalds return status; 44931da177e4SLinus Torvalds } 44941da177e4SLinus Torvalds 44951da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 44961da177e4SLinus Torvalds { 44971da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 44981da177e4SLinus Torvalds } 44991da177e4SLinus Torvalds 45001da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 45011da177e4SLinus Torvalds { 45021da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 45031da177e4SLinus Torvalds } 45041da177e4SLinus Torvalds 45051da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 45061da177e4SLinus Torvalds { 45071da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 45088687b63aSAl Viro __be32 *p; 45091da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 45101da177e4SLinus Torvalds int status; 45111da177e4SLinus Torvalds 45121da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 45131da177e4SLinus Torvalds if (status) 45141da177e4SLinus Torvalds return status; 4515c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4516c0eae66eSBenny Halevy if (unlikely(!p)) 4517c0eae66eSBenny Halevy goto out_overflow; 45186f723f77SBenny Halevy eof = be32_to_cpup(p++); 4519cccddf4fSBenny Halevy count = be32_to_cpup(p); 45208111f373SChuck Lever hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 45211da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 45221da177e4SLinus Torvalds if (count > recvd) { 4523fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 45241da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 45251da177e4SLinus Torvalds count = recvd; 45261da177e4SLinus Torvalds eof = 0; 45271da177e4SLinus Torvalds } 45281da177e4SLinus Torvalds xdr_read_pages(xdr, count); 45291da177e4SLinus Torvalds res->eof = eof; 45301da177e4SLinus Torvalds res->count = count; 45311da177e4SLinus Torvalds return 0; 4532c0eae66eSBenny Halevy out_overflow: 4533c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4534c0eae66eSBenny Halevy return -EIO; 45351da177e4SLinus Torvalds } 45361da177e4SLinus Torvalds 45371da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 45381da177e4SLinus Torvalds { 45391da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 45401da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4541bcecff77SChuck Lever size_t hdrlen; 4542bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 4543bcecff77SChuck Lever int status; 45441da177e4SLinus Torvalds 45451da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4546db942bbdSBenny Halevy if (!status) 4547db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4548db942bbdSBenny Halevy if (unlikely(status)) 45491da177e4SLinus Torvalds return status; 455044109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 455144109241SFred Isaman __func__, 4552eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4553eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4554eadf4598STrond Myklebust 45551da177e4SLinus Torvalds 4556db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 45571da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 45581da177e4SLinus Torvalds if (pglen > recvd) 45591da177e4SLinus Torvalds pglen = recvd; 45601da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 45611da177e4SLinus Torvalds 45627bda2cdfSJeff Layton 4563ac396128STrond Myklebust return pglen; 45641da177e4SLinus Torvalds } 45651da177e4SLinus Torvalds 45661da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 45671da177e4SLinus Torvalds { 45681da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 45691da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4570bcecff77SChuck Lever size_t hdrlen; 4571bcecff77SChuck Lever u32 len, recvd; 45728687b63aSAl Viro __be32 *p; 45731da177e4SLinus Torvalds int status; 45741da177e4SLinus Torvalds 45751da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 45761da177e4SLinus Torvalds if (status) 45771da177e4SLinus Torvalds return status; 45781da177e4SLinus Torvalds 45791da177e4SLinus Torvalds /* Convert length of symlink */ 4580c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4581c0eae66eSBenny Halevy if (unlikely(!p)) 4582c0eae66eSBenny Halevy goto out_overflow; 4583cccddf4fSBenny Halevy len = be32_to_cpup(p); 45841da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4585fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 45861da177e4SLinus Torvalds return -ENAMETOOLONG; 45871da177e4SLinus Torvalds } 45881da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 45891da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 45901da177e4SLinus Torvalds if (recvd < len) { 4591fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 45921da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 45931da177e4SLinus Torvalds return -EIO; 45941da177e4SLinus Torvalds } 45951da177e4SLinus Torvalds xdr_read_pages(xdr, len); 45961da177e4SLinus Torvalds /* 45971da177e4SLinus Torvalds * The XDR encode routine has set things up so that 45981da177e4SLinus Torvalds * the link text will be copied directly into the 45991da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 46001da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 46011da177e4SLinus Torvalds * null-termination). 46021da177e4SLinus Torvalds */ 4603b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 46041da177e4SLinus Torvalds return 0; 4605c0eae66eSBenny Halevy out_overflow: 4606c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4607c0eae66eSBenny Halevy return -EIO; 46081da177e4SLinus Torvalds } 46091da177e4SLinus Torvalds 46101da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 46111da177e4SLinus Torvalds { 46121da177e4SLinus Torvalds int status; 46131da177e4SLinus Torvalds 46141da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 46151da177e4SLinus Torvalds if (status) 46161da177e4SLinus Torvalds goto out; 46171da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 46181da177e4SLinus Torvalds out: 46191da177e4SLinus Torvalds return status; 46201da177e4SLinus Torvalds } 46211da177e4SLinus Torvalds 46221da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 46231da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 46241da177e4SLinus Torvalds { 46251da177e4SLinus Torvalds int status; 46261da177e4SLinus Torvalds 46271da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 46281da177e4SLinus Torvalds if (status) 46291da177e4SLinus Torvalds goto out; 46301da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 46311da177e4SLinus Torvalds goto out; 46321da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 46331da177e4SLinus Torvalds out: 46341da177e4SLinus Torvalds return status; 46351da177e4SLinus Torvalds } 46361da177e4SLinus Torvalds 46371da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 46381da177e4SLinus Torvalds { 46391da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 46401da177e4SLinus Torvalds } 46411da177e4SLinus Torvalds 464256ae19f3STrond Myklebust static int 464356ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 464456ae19f3STrond Myklebust { 464556ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 464656ae19f3STrond Myklebust } 464756ae19f3STrond Myklebust 4648029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4649029d105eSJ. Bruce Fields size_t *acl_len) 4650029d105eSJ. Bruce Fields { 46518687b63aSAl Viro __be32 *savep; 4652029d105eSJ. Bruce Fields uint32_t attrlen, 4653029d105eSJ. Bruce Fields bitmap[2] = {0}; 4654029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4655029d105eSJ. Bruce Fields int status; 4656029d105eSJ. Bruce Fields 4657029d105eSJ. Bruce Fields *acl_len = 0; 4658029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4659029d105eSJ. Bruce Fields goto out; 4660029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4661029d105eSJ. Bruce Fields goto out; 4662029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4663029d105eSJ. Bruce Fields goto out; 4664029d105eSJ. Bruce Fields 4665029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4666029d105eSJ. Bruce Fields return -EIO; 4667029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4668bcecff77SChuck Lever size_t hdrlen; 4669bcecff77SChuck Lever u32 recvd; 4670029d105eSJ. Bruce Fields 4671029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 4672029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 4673029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 4674029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 4675029d105eSJ. Bruce Fields if (attrlen > recvd) { 4676fe82a183SChuck Lever dprintk("NFS: server cheating in getattr" 4677029d105eSJ. Bruce Fields " acl reply: attrlen %u > recvd %u\n", 4678029d105eSJ. Bruce Fields attrlen, recvd); 4679029d105eSJ. Bruce Fields return -EINVAL; 4680029d105eSJ. Bruce Fields } 4681029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 4682029d105eSJ. Bruce Fields *acl_len = attrlen; 46838c233cf9SJ. Bruce Fields } else 46848c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 4685029d105eSJ. Bruce Fields 4686029d105eSJ. Bruce Fields out: 4687029d105eSJ. Bruce Fields return status; 4688029d105eSJ. Bruce Fields } 4689029d105eSJ. Bruce Fields 46901da177e4SLinus Torvalds static int 46911da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 46921da177e4SLinus Torvalds { 46931da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 46941da177e4SLinus Torvalds } 46951da177e4SLinus Torvalds 46969e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 46971da177e4SLinus Torvalds { 46988687b63aSAl Viro __be32 *p; 46991da177e4SLinus Torvalds uint32_t bmlen; 47001da177e4SLinus Torvalds int status; 47011da177e4SLinus Torvalds 47021da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 47031da177e4SLinus Torvalds if (status) 47041da177e4SLinus Torvalds return status; 4705c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4706c0eae66eSBenny Halevy if (unlikely(!p)) 4707c0eae66eSBenny Halevy goto out_overflow; 4708cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4709c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4710c0eae66eSBenny Halevy if (likely(p)) 47111da177e4SLinus Torvalds return 0; 4712c0eae66eSBenny Halevy out_overflow: 4713c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4714c0eae66eSBenny Halevy return -EIO; 47151da177e4SLinus Torvalds } 47161da177e4SLinus Torvalds 4717bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 47181da177e4SLinus Torvalds { 47198687b63aSAl Viro __be32 *p; 47201da177e4SLinus Torvalds uint32_t opnum; 47211da177e4SLinus Torvalds int32_t nfserr; 47221da177e4SLinus Torvalds 4723c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4724c0eae66eSBenny Halevy if (unlikely(!p)) 4725c0eae66eSBenny Halevy goto out_overflow; 47266f723f77SBenny Halevy opnum = be32_to_cpup(p++); 47271da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 4728fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 47291da177e4SLinus Torvalds " %d\n", opnum); 47301da177e4SLinus Torvalds return -EIO; 47311da177e4SLinus Torvalds } 4732cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 47331da177e4SLinus Torvalds if (nfserr == NFS_OK) { 4734c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 4735c0eae66eSBenny Halevy if (unlikely(!p)) 4736c0eae66eSBenny Halevy goto out_overflow; 4737bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 4738bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 47391da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 47401da177e4SLinus Torvalds uint32_t len; 47411da177e4SLinus Torvalds 47421da177e4SLinus Torvalds /* skip netid string */ 4743c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4744c0eae66eSBenny Halevy if (unlikely(!p)) 4745c0eae66eSBenny Halevy goto out_overflow; 4746cccddf4fSBenny Halevy len = be32_to_cpup(p); 4747c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4748c0eae66eSBenny Halevy if (unlikely(!p)) 4749c0eae66eSBenny Halevy goto out_overflow; 47501da177e4SLinus Torvalds 47511da177e4SLinus Torvalds /* skip uaddr string */ 4752c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4753c0eae66eSBenny Halevy if (unlikely(!p)) 4754c0eae66eSBenny Halevy goto out_overflow; 4755cccddf4fSBenny Halevy len = be32_to_cpup(p); 4756c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4757c0eae66eSBenny Halevy if (unlikely(!p)) 4758c0eae66eSBenny Halevy goto out_overflow; 47591da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 47601da177e4SLinus Torvalds } else 4761856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 47621da177e4SLinus Torvalds 47631da177e4SLinus Torvalds return 0; 4764c0eae66eSBenny Halevy out_overflow: 4765c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4766c0eae66eSBenny Halevy return -EIO; 47671da177e4SLinus Torvalds } 47681da177e4SLinus Torvalds 47691da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 47701da177e4SLinus Torvalds { 47711da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 47721da177e4SLinus Torvalds } 47731da177e4SLinus Torvalds 47741da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 47751da177e4SLinus Torvalds { 47768687b63aSAl Viro __be32 *p; 47771da177e4SLinus Torvalds int status; 47781da177e4SLinus Torvalds 47791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 47801da177e4SLinus Torvalds if (status) 47811da177e4SLinus Torvalds return status; 47821da177e4SLinus Torvalds 4783c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 4784c0eae66eSBenny Halevy if (unlikely(!p)) 4785c0eae66eSBenny Halevy goto out_overflow; 47866f723f77SBenny Halevy res->count = be32_to_cpup(p++); 47876f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 478899398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 47891da177e4SLinus Torvalds return 0; 4790c0eae66eSBenny Halevy out_overflow: 4791c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4792c0eae66eSBenny Halevy return -EIO; 47931da177e4SLinus Torvalds } 47941da177e4SLinus Torvalds 47951da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 47961da177e4SLinus Torvalds { 47971da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 47981da177e4SLinus Torvalds } 47991da177e4SLinus Torvalds 48005a5ea0d4SBryan Schumaker static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) 48015a5ea0d4SBryan Schumaker { 48025a5ea0d4SBryan Schumaker __be32 *p; 48035a5ea0d4SBryan Schumaker 48045a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 48055a5ea0d4SBryan Schumaker if (unlikely(!p)) 48065a5ea0d4SBryan Schumaker goto out_overflow; 48075a5ea0d4SBryan Schumaker flavor->gss.sec_oid4.len = be32_to_cpup(p); 48085a5ea0d4SBryan Schumaker if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) 48095a5ea0d4SBryan Schumaker goto out_err; 48105a5ea0d4SBryan Schumaker 48115a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); 48125a5ea0d4SBryan Schumaker if (unlikely(!p)) 48135a5ea0d4SBryan Schumaker goto out_overflow; 48145a5ea0d4SBryan Schumaker memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); 48155a5ea0d4SBryan Schumaker 48165a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 48175a5ea0d4SBryan Schumaker if (unlikely(!p)) 48185a5ea0d4SBryan Schumaker goto out_overflow; 48195a5ea0d4SBryan Schumaker flavor->gss.qop4 = be32_to_cpup(p++); 48205a5ea0d4SBryan Schumaker flavor->gss.service = be32_to_cpup(p); 48215a5ea0d4SBryan Schumaker 48225a5ea0d4SBryan Schumaker return 0; 48235a5ea0d4SBryan Schumaker 48245a5ea0d4SBryan Schumaker out_overflow: 48255a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 48265a5ea0d4SBryan Schumaker return -EIO; 48275a5ea0d4SBryan Schumaker out_err: 48285a5ea0d4SBryan Schumaker return -EINVAL; 48295a5ea0d4SBryan Schumaker } 48305a5ea0d4SBryan Schumaker 48315a5ea0d4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 48325a5ea0d4SBryan Schumaker { 48335a5ea0d4SBryan Schumaker struct nfs4_secinfo_flavor *sec_flavor; 48345a5ea0d4SBryan Schumaker int status; 48355a5ea0d4SBryan Schumaker __be32 *p; 4836c3dfc280SBryan Schumaker int i, num_flavors; 48375a5ea0d4SBryan Schumaker 48385a5ea0d4SBryan Schumaker status = decode_op_hdr(xdr, OP_SECINFO); 48395a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 48405a5ea0d4SBryan Schumaker if (unlikely(!p)) 48415a5ea0d4SBryan Schumaker goto out_overflow; 48425a5ea0d4SBryan Schumaker 4843c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 4844c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 4845c3dfc280SBryan Schumaker 4846c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 48475a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 4848c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 48495a5ea0d4SBryan Schumaker break; 48505a5ea0d4SBryan Schumaker 48515a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 48525a5ea0d4SBryan Schumaker if (unlikely(!p)) 48535a5ea0d4SBryan Schumaker goto out_overflow; 48545a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 48555a5ea0d4SBryan Schumaker 48565a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 48575a5ea0d4SBryan Schumaker if (decode_secinfo_gss(xdr, sec_flavor)) 48585a5ea0d4SBryan Schumaker break; 48595a5ea0d4SBryan Schumaker } 4860c3dfc280SBryan Schumaker res->flavors->num_flavors++; 48615a5ea0d4SBryan Schumaker } 48625a5ea0d4SBryan Schumaker 48635a5ea0d4SBryan Schumaker return 0; 48645a5ea0d4SBryan Schumaker 48655a5ea0d4SBryan Schumaker out_overflow: 48665a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 48675a5ea0d4SBryan Schumaker return -EIO; 48685a5ea0d4SBryan Schumaker } 48695a5ea0d4SBryan Schumaker 487099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 487199fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 487299fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 487399fe60d0SBenny Halevy { 487499fe60d0SBenny Halevy __be32 *p; 487599fe60d0SBenny Halevy uint32_t dummy; 48762460ba57SBenny Halevy char *dummy_str; 487799fe60d0SBenny Halevy int status; 487899fe60d0SBenny Halevy struct nfs_client *clp = res->client; 487999fe60d0SBenny Halevy 488099fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 488199fe60d0SBenny Halevy if (status) 488299fe60d0SBenny Halevy return status; 488399fe60d0SBenny Halevy 4884c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4885c0eae66eSBenny Halevy if (unlikely(!p)) 4886c0eae66eSBenny Halevy goto out_overflow; 4887114f64b5SAndy Adamson xdr_decode_hyper(p, &clp->cl_clientid); 4888c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4889c0eae66eSBenny Halevy if (unlikely(!p)) 4890c0eae66eSBenny Halevy goto out_overflow; 48916f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 48926f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 489399fe60d0SBenny Halevy 489499fe60d0SBenny Halevy /* We ask for SP4_NONE */ 4895cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 489699fe60d0SBenny Halevy if (dummy != SP4_NONE) 489799fe60d0SBenny Halevy return -EIO; 489899fe60d0SBenny Halevy 489999fe60d0SBenny Halevy /* Throw away minor_id */ 4900c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4901c0eae66eSBenny Halevy if (unlikely(!p)) 4902c0eae66eSBenny Halevy goto out_overflow; 490399fe60d0SBenny Halevy 490499fe60d0SBenny Halevy /* Throw away Major id */ 49052460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 49062460ba57SBenny Halevy if (unlikely(status)) 49072460ba57SBenny Halevy return status; 490899fe60d0SBenny Halevy 490999fe60d0SBenny Halevy /* Throw away server_scope */ 49102460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 49112460ba57SBenny Halevy if (unlikely(status)) 49122460ba57SBenny Halevy return status; 491399fe60d0SBenny Halevy 491499fe60d0SBenny Halevy /* Throw away Implementation id array */ 49152460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 49162460ba57SBenny Halevy if (unlikely(status)) 49172460ba57SBenny Halevy return status; 491899fe60d0SBenny Halevy 491999fe60d0SBenny Halevy return 0; 4920c0eae66eSBenny Halevy out_overflow: 4921c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4922c0eae66eSBenny Halevy return -EIO; 492399fe60d0SBenny Halevy } 4924fc931582SAndy Adamson 4925fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 4926fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 4927fc931582SAndy Adamson { 4928fc931582SAndy Adamson __be32 *p; 4929fc931582SAndy Adamson u32 nr_attrs; 4930fc931582SAndy Adamson 4931c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 4932c0eae66eSBenny Halevy if (unlikely(!p)) 4933c0eae66eSBenny Halevy goto out_overflow; 49346f723f77SBenny Halevy attrs->headerpadsz = be32_to_cpup(p++); 49356f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 49366f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 49376f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 49386f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 49396f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 4940cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 4941fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 4942fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 4943fc931582SAndy Adamson __func__, nr_attrs); 4944fc931582SAndy Adamson return -EINVAL; 4945fc931582SAndy Adamson } 4946c0eae66eSBenny Halevy if (nr_attrs == 1) { 4947c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 4948c0eae66eSBenny Halevy if (unlikely(!p)) 4949c0eae66eSBenny Halevy goto out_overflow; 4950c0eae66eSBenny Halevy } 4951fc931582SAndy Adamson return 0; 4952c0eae66eSBenny Halevy out_overflow: 4953c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4954c0eae66eSBenny Halevy return -EIO; 4955fc931582SAndy Adamson } 4956fc931582SAndy Adamson 4957e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 4958e78291e4SBenny Halevy { 4959e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 4960fc931582SAndy Adamson } 4961fc931582SAndy Adamson 4962fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 4963fc931582SAndy Adamson struct nfs41_create_session_res *res) 4964fc931582SAndy Adamson { 4965fc931582SAndy Adamson __be32 *p; 4966fc931582SAndy Adamson int status; 4967fc931582SAndy Adamson struct nfs_client *clp = res->client; 4968fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 4969fc931582SAndy Adamson 4970fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 4971e78291e4SBenny Halevy if (!status) 4972e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 4973e78291e4SBenny Halevy if (unlikely(status)) 4974fc931582SAndy Adamson return status; 4975fc931582SAndy Adamson 4976fc931582SAndy Adamson /* seqid, flags */ 4977c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4978c0eae66eSBenny Halevy if (unlikely(!p)) 4979c0eae66eSBenny Halevy goto out_overflow; 49806f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 4981cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 4982fc931582SAndy Adamson 4983fc931582SAndy Adamson /* Channel attributes */ 4984fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 4985fc931582SAndy Adamson if (!status) 4986fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 4987fc931582SAndy Adamson return status; 4988c0eae66eSBenny Halevy out_overflow: 4989c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4990c0eae66eSBenny Halevy return -EIO; 4991fc931582SAndy Adamson } 49920f3e66c6SAndy Adamson 49930f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 49940f3e66c6SAndy Adamson { 49950f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 49960f3e66c6SAndy Adamson } 499718019753SRicardo Labiaga 499818019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 499918019753SRicardo Labiaga { 500018019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 500118019753SRicardo Labiaga } 500299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 500399fe60d0SBenny Halevy 50049b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 50059b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 50069b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 50079b7b9fccSAndy Adamson { 50089b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5009fc01cea9SAndy Adamson struct nfs4_sessionid id; 5010fc01cea9SAndy Adamson u32 dummy; 5011fc01cea9SAndy Adamson int status; 5012fc01cea9SAndy Adamson __be32 *p; 5013fc01cea9SAndy Adamson 50149b7b9fccSAndy Adamson if (!res->sr_session) 50159b7b9fccSAndy Adamson return 0; 50169b7b9fccSAndy Adamson 5017fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5018e78291e4SBenny Halevy if (!status) 5019e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5020e78291e4SBenny Halevy if (unlikely(status)) 5021fc01cea9SAndy Adamson goto out_err; 50229b7b9fccSAndy Adamson 5023fc01cea9SAndy Adamson /* 5024fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5025fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5026fc01cea9SAndy Adamson */ 5027fdcb4577STrond Myklebust status = -EREMOTEIO; 5028fc01cea9SAndy Adamson 5029fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 5030fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5031fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5032fc01cea9SAndy Adamson goto out_err; 5033fc01cea9SAndy Adamson } 5034e78291e4SBenny Halevy 5035c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5036c0eae66eSBenny Halevy if (unlikely(!p)) 5037c0eae66eSBenny Halevy goto out_overflow; 5038e78291e4SBenny Halevy 5039fc01cea9SAndy Adamson /* seqid */ 50406f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5041dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5042fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5043fc01cea9SAndy Adamson goto out_err; 5044fc01cea9SAndy Adamson } 5045fc01cea9SAndy Adamson /* slot id */ 50466f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5047dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 5048fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5049fc01cea9SAndy Adamson goto out_err; 5050fc01cea9SAndy Adamson } 5051fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 50526f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5053fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 50546f723f77SBenny Halevy dummy = be32_to_cpup(p++); 50550629e370SAlexandros Batsakis /* result flags */ 50560629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5057fc01cea9SAndy Adamson status = 0; 5058fc01cea9SAndy Adamson out_err: 5059fc01cea9SAndy Adamson res->sr_status = status; 5060fc01cea9SAndy Adamson return status; 5061c0eae66eSBenny Halevy out_overflow: 5062c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5063c0eae66eSBenny Halevy status = -EIO; 5064c0eae66eSBenny Halevy goto out_err; 5065fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 50669b7b9fccSAndy Adamson return 0; 5067fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 50689b7b9fccSAndy Adamson } 50699b7b9fccSAndy Adamson 5070b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 5071b1f69b75SAndy Adamson 5072b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5073b1f69b75SAndy Adamson struct pnfs_device *pdev) 5074b1f69b75SAndy Adamson { 5075b1f69b75SAndy Adamson __be32 *p; 5076b1f69b75SAndy Adamson uint32_t len, type; 5077b1f69b75SAndy Adamson int status; 5078b1f69b75SAndy Adamson 5079b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5080b1f69b75SAndy Adamson if (status) { 5081b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5082b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5083b1f69b75SAndy Adamson if (unlikely(!p)) 5084b1f69b75SAndy Adamson goto out_overflow; 5085b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5086b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5087b1f69b75SAndy Adamson __func__, pdev->mincount); 5088b1f69b75SAndy Adamson } 5089b1f69b75SAndy Adamson return status; 5090b1f69b75SAndy Adamson } 5091b1f69b75SAndy Adamson 5092b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5093b1f69b75SAndy Adamson if (unlikely(!p)) 5094b1f69b75SAndy Adamson goto out_overflow; 5095b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5096b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5097b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5098b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5099b1f69b75SAndy Adamson return -EINVAL; 5100b1f69b75SAndy Adamson } 5101b1f69b75SAndy Adamson /* 5102b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5103b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5104b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5105b1f69b75SAndy Adamson */ 5106b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5107b1f69b75SAndy Adamson xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ 5108b1f69b75SAndy Adamson 5109b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5110b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5111b1f69b75SAndy Adamson if (unlikely(!p)) 5112b1f69b75SAndy Adamson goto out_overflow; 5113b1f69b75SAndy Adamson len = be32_to_cpup(p); 5114b1f69b75SAndy Adamson if (len) { 5115ead00597SChuck Lever uint32_t i; 5116b1f69b75SAndy Adamson 5117b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5118b1f69b75SAndy Adamson if (unlikely(!p)) 5119b1f69b75SAndy Adamson goto out_overflow; 5120b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5121b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5122b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5123b1f69b75SAndy Adamson __func__); 5124b1f69b75SAndy Adamson return -EIO; 5125b1f69b75SAndy Adamson } 5126b1f69b75SAndy Adamson } 5127b1f69b75SAndy Adamson } 5128b1f69b75SAndy Adamson return 0; 5129b1f69b75SAndy Adamson out_overflow: 5130b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5131b1f69b75SAndy Adamson return -EIO; 5132b1f69b75SAndy Adamson } 5133b1f69b75SAndy Adamson 5134b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5135b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5136b1f69b75SAndy Adamson { 5137b1f69b75SAndy Adamson __be32 *p; 5138b1f69b75SAndy Adamson int status; 5139b1f69b75SAndy Adamson u32 layout_count; 514035124a09SWeston Andros Adamson struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 514135124a09SWeston Andros Adamson struct kvec *iov = rcvbuf->head; 514235124a09SWeston Andros Adamson u32 hdrlen, recvd; 5143b1f69b75SAndy Adamson 5144b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5145b1f69b75SAndy Adamson if (status) 5146b1f69b75SAndy Adamson return status; 5147b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); 5148b1f69b75SAndy Adamson if (unlikely(!p)) 5149b1f69b75SAndy Adamson goto out_overflow; 5150b1f69b75SAndy Adamson res->return_on_close = be32_to_cpup(p++); 5151b1f69b75SAndy Adamson p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); 5152b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5153b1f69b75SAndy Adamson if (!layout_count) { 5154b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5155b1f69b75SAndy Adamson __func__); 5156b1f69b75SAndy Adamson return -EINVAL; 5157b1f69b75SAndy Adamson } 5158b1f69b75SAndy Adamson 515935124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5160b1f69b75SAndy Adamson if (unlikely(!p)) 5161b1f69b75SAndy Adamson goto out_overflow; 5162b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5163b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5164b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5165b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 516635124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5167b1f69b75SAndy Adamson 5168b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5169b1f69b75SAndy Adamson __func__, 5170b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5171b1f69b75SAndy Adamson (unsigned long)res->range.length, 5172b1f69b75SAndy Adamson res->range.iomode, 5173b1f69b75SAndy Adamson res->type, 517435124a09SWeston Andros Adamson res->layoutp->len); 5175b1f69b75SAndy Adamson 517635124a09SWeston Andros Adamson hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 517735124a09SWeston Andros Adamson recvd = req->rq_rcv_buf.len - hdrlen; 517835124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 517935124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 518035124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 518135124a09SWeston Andros Adamson res->layoutp->len, recvd); 518235124a09SWeston Andros Adamson return -EINVAL; 518335124a09SWeston Andros Adamson } 518435124a09SWeston Andros Adamson 518535124a09SWeston Andros Adamson xdr_read_pages(xdr, res->layoutp->len); 5186b1f69b75SAndy Adamson 5187b1f69b75SAndy Adamson if (layout_count > 1) { 5188b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5189b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5190b1f69b75SAndy Adamson * the client may see a response that is less than the 5191b1f69b75SAndy Adamson * minimum it requested. 5192b1f69b75SAndy Adamson */ 5193b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5194b1f69b75SAndy Adamson __func__, layout_count); 5195b1f69b75SAndy Adamson } 5196b1f69b75SAndy Adamson 5197b1f69b75SAndy Adamson return 0; 5198b1f69b75SAndy Adamson out_overflow: 5199b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5200b1f69b75SAndy Adamson return -EIO; 5201b1f69b75SAndy Adamson } 5202863a3c6cSAndy Adamson 5203863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5204863a3c6cSAndy Adamson struct rpc_rqst *req, 5205863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5206863a3c6cSAndy Adamson { 5207863a3c6cSAndy Adamson __be32 *p; 5208863a3c6cSAndy Adamson __u32 sizechanged; 5209863a3c6cSAndy Adamson int status; 5210863a3c6cSAndy Adamson 5211863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5212863a3c6cSAndy Adamson if (status) 5213863a3c6cSAndy Adamson return status; 5214863a3c6cSAndy Adamson 5215863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5216863a3c6cSAndy Adamson if (unlikely(!p)) 5217863a3c6cSAndy Adamson goto out_overflow; 5218863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5219863a3c6cSAndy Adamson 5220863a3c6cSAndy Adamson if (sizechanged) { 5221863a3c6cSAndy Adamson /* throw away new size */ 5222863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5223863a3c6cSAndy Adamson if (unlikely(!p)) 5224863a3c6cSAndy Adamson goto out_overflow; 5225863a3c6cSAndy Adamson } 5226863a3c6cSAndy Adamson return 0; 5227863a3c6cSAndy Adamson out_overflow: 5228863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5229863a3c6cSAndy Adamson return -EIO; 5230863a3c6cSAndy Adamson } 5231b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5232b1f69b75SAndy Adamson 52331da177e4SLinus Torvalds /* 523449c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 523549c2559eSBenny Halevy */ 523649c2559eSBenny Halevy 523749c2559eSBenny Halevy /* 52381da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 52391da177e4SLinus Torvalds */ 5240bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5241bf269551SChuck Lever struct xdr_stream *xdr, 5242bf269551SChuck Lever struct nfs_closeres *res) 52431da177e4SLinus Torvalds { 52441da177e4SLinus Torvalds struct compound_hdr hdr; 52451da177e4SLinus Torvalds int status; 52461da177e4SLinus Torvalds 5247bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52481da177e4SLinus Torvalds if (status) 52491da177e4SLinus Torvalds goto out; 5250bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52519b7b9fccSAndy Adamson if (status) 52529b7b9fccSAndy Adamson goto out; 5253bf269551SChuck Lever status = decode_putfh(xdr); 52541da177e4SLinus Torvalds if (status) 52551da177e4SLinus Torvalds goto out; 5256bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5257516a6af6STrond Myklebust if (status != 0) 5258516a6af6STrond Myklebust goto out; 5259bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 526080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52611da177e4SLinus Torvalds out: 52621da177e4SLinus Torvalds return status; 52631da177e4SLinus Torvalds } 52641da177e4SLinus Torvalds 52651da177e4SLinus Torvalds /* 52661da177e4SLinus Torvalds * Decode ACCESS response 52671da177e4SLinus Torvalds */ 5268bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5269bf269551SChuck Lever struct nfs4_accessres *res) 52701da177e4SLinus Torvalds { 52711da177e4SLinus Torvalds struct compound_hdr hdr; 52721da177e4SLinus Torvalds int status; 52731da177e4SLinus Torvalds 5274bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 52759b7b9fccSAndy Adamson if (status) 52769b7b9fccSAndy Adamson goto out; 5277bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 52789b7b9fccSAndy Adamson if (status) 52791da177e4SLinus Torvalds goto out; 5280bf269551SChuck Lever status = decode_putfh(xdr); 528176b32999STrond Myklebust if (status != 0) 528276b32999STrond Myklebust goto out; 5283bf269551SChuck Lever status = decode_access(xdr, res); 528476b32999STrond Myklebust if (status != 0) 528576b32999STrond Myklebust goto out; 5286bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 528780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 52881da177e4SLinus Torvalds out: 52891da177e4SLinus Torvalds return status; 52901da177e4SLinus Torvalds } 52911da177e4SLinus Torvalds 52921da177e4SLinus Torvalds /* 52931da177e4SLinus Torvalds * Decode LOOKUP response 52941da177e4SLinus Torvalds */ 5295bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5296bf269551SChuck Lever struct nfs4_lookup_res *res) 52971da177e4SLinus Torvalds { 52981da177e4SLinus Torvalds struct compound_hdr hdr; 52991da177e4SLinus Torvalds int status; 53001da177e4SLinus Torvalds 5301bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 53029b7b9fccSAndy Adamson if (status) 53039b7b9fccSAndy Adamson goto out; 5304bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53059b7b9fccSAndy Adamson if (status) 53061da177e4SLinus Torvalds goto out; 5307bf269551SChuck Lever status = decode_putfh(xdr); 5308bf269551SChuck Lever if (status) 53091da177e4SLinus Torvalds goto out; 5310bf269551SChuck Lever status = decode_lookup(xdr); 5311bf269551SChuck Lever if (status) 53121da177e4SLinus Torvalds goto out; 5313bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5314bf269551SChuck Lever if (status) 53151da177e4SLinus Torvalds goto out; 5316bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server 531780e52aceSTrond Myklebust ,!RPC_IS_ASYNC(rqstp->rq_task)); 53181da177e4SLinus Torvalds out: 53191da177e4SLinus Torvalds return status; 53201da177e4SLinus Torvalds } 53211da177e4SLinus Torvalds 53221da177e4SLinus Torvalds /* 53231da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 53241da177e4SLinus Torvalds */ 5325bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5326bf269551SChuck Lever struct xdr_stream *xdr, 5327bf269551SChuck Lever struct nfs4_lookup_res *res) 53281da177e4SLinus Torvalds { 53291da177e4SLinus Torvalds struct compound_hdr hdr; 53301da177e4SLinus Torvalds int status; 53311da177e4SLinus Torvalds 5332bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 53339b7b9fccSAndy Adamson if (status) 53349b7b9fccSAndy Adamson goto out; 5335bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53369b7b9fccSAndy Adamson if (status) 53371da177e4SLinus Torvalds goto out; 5338bf269551SChuck Lever status = decode_putrootfh(xdr); 5339bf269551SChuck Lever if (status) 53401da177e4SLinus Torvalds goto out; 5341bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5342bf269551SChuck Lever if (status == 0) 5343bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server, 534480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53451da177e4SLinus Torvalds out: 53461da177e4SLinus Torvalds return status; 53471da177e4SLinus Torvalds } 53481da177e4SLinus Torvalds 53491da177e4SLinus Torvalds /* 53501da177e4SLinus Torvalds * Decode REMOVE response 53511da177e4SLinus Torvalds */ 5352bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5353bf269551SChuck Lever struct nfs_removeres *res) 53541da177e4SLinus Torvalds { 53551da177e4SLinus Torvalds struct compound_hdr hdr; 53561da177e4SLinus Torvalds int status; 53571da177e4SLinus Torvalds 5358bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 53599b7b9fccSAndy Adamson if (status) 53609b7b9fccSAndy Adamson goto out; 5361bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53629b7b9fccSAndy Adamson if (status) 53631da177e4SLinus Torvalds goto out; 5364bf269551SChuck Lever status = decode_putfh(xdr); 5365bf269551SChuck Lever if (status) 536616e42959STrond Myklebust goto out; 5367bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 5368bf269551SChuck Lever if (status) 536916e42959STrond Myklebust goto out; 5370bf269551SChuck Lever decode_getfattr(xdr, res->dir_attr, res->server, 537180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 53721da177e4SLinus Torvalds out: 53731da177e4SLinus Torvalds return status; 53741da177e4SLinus Torvalds } 53751da177e4SLinus Torvalds 53761da177e4SLinus Torvalds /* 53771da177e4SLinus Torvalds * Decode RENAME response 53781da177e4SLinus Torvalds */ 5379bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5380bf269551SChuck Lever struct nfs_renameres *res) 53811da177e4SLinus Torvalds { 53821da177e4SLinus Torvalds struct compound_hdr hdr; 53831da177e4SLinus Torvalds int status; 53841da177e4SLinus Torvalds 5385bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 53869b7b9fccSAndy Adamson if (status) 53879b7b9fccSAndy Adamson goto out; 5388bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 53899b7b9fccSAndy Adamson if (status) 53901da177e4SLinus Torvalds goto out; 5391bf269551SChuck Lever status = decode_putfh(xdr); 5392bf269551SChuck Lever if (status) 53931da177e4SLinus Torvalds goto out; 5394bf269551SChuck Lever status = decode_savefh(xdr); 5395bf269551SChuck Lever if (status) 53961da177e4SLinus Torvalds goto out; 5397bf269551SChuck Lever status = decode_putfh(xdr); 5398bf269551SChuck Lever if (status) 53991da177e4SLinus Torvalds goto out; 5400bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 5401bf269551SChuck Lever if (status) 54026caf2c82STrond Myklebust goto out; 54036caf2c82STrond Myklebust /* Current FH is target directory */ 5404bf269551SChuck Lever if (decode_getfattr(xdr, res->new_fattr, res->server, 540580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 54066caf2c82STrond Myklebust goto out; 5407bf269551SChuck Lever status = decode_restorefh(xdr); 5408bf269551SChuck Lever if (status) 54096caf2c82STrond Myklebust goto out; 5410bf269551SChuck Lever decode_getfattr(xdr, res->old_fattr, res->server, 541180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54121da177e4SLinus Torvalds out: 54131da177e4SLinus Torvalds return status; 54141da177e4SLinus Torvalds } 54151da177e4SLinus Torvalds 54161da177e4SLinus Torvalds /* 54171da177e4SLinus Torvalds * Decode LINK response 54181da177e4SLinus Torvalds */ 5419bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5420bf269551SChuck Lever struct nfs4_link_res *res) 54211da177e4SLinus Torvalds { 54221da177e4SLinus Torvalds struct compound_hdr hdr; 54231da177e4SLinus Torvalds int status; 54241da177e4SLinus Torvalds 5425bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54269b7b9fccSAndy Adamson if (status) 54279b7b9fccSAndy Adamson goto out; 5428bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 54299b7b9fccSAndy Adamson if (status) 54301da177e4SLinus Torvalds goto out; 5431bf269551SChuck Lever status = decode_putfh(xdr); 5432bf269551SChuck Lever if (status) 54331da177e4SLinus Torvalds goto out; 5434bf269551SChuck Lever status = decode_savefh(xdr); 5435bf269551SChuck Lever if (status) 54361da177e4SLinus Torvalds goto out; 5437bf269551SChuck Lever status = decode_putfh(xdr); 5438bf269551SChuck Lever if (status) 54391da177e4SLinus Torvalds goto out; 5440bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 5441bf269551SChuck Lever if (status) 544291ba2eeeSTrond Myklebust goto out; 544391ba2eeeSTrond Myklebust /* 544491ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 544591ba2eeeSTrond Myklebust * filehandle. 544691ba2eeeSTrond Myklebust */ 5447bf269551SChuck Lever if (decode_getfattr(xdr, res->dir_attr, res->server, 544880e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 544991ba2eeeSTrond Myklebust goto out; 5450bf269551SChuck Lever status = decode_restorefh(xdr); 5451bf269551SChuck Lever if (status) 545291ba2eeeSTrond Myklebust goto out; 5453bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 545480e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54551da177e4SLinus Torvalds out: 54561da177e4SLinus Torvalds return status; 54571da177e4SLinus Torvalds } 54581da177e4SLinus Torvalds 54591da177e4SLinus Torvalds /* 54601da177e4SLinus Torvalds * Decode CREATE response 54611da177e4SLinus Torvalds */ 5462bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5463bf269551SChuck Lever struct nfs4_create_res *res) 54641da177e4SLinus Torvalds { 54651da177e4SLinus Torvalds struct compound_hdr hdr; 54661da177e4SLinus Torvalds int status; 54671da177e4SLinus Torvalds 5468bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 54699b7b9fccSAndy Adamson if (status) 54709b7b9fccSAndy Adamson goto out; 5471bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 54729b7b9fccSAndy Adamson if (status) 54731da177e4SLinus Torvalds goto out; 5474bf269551SChuck Lever status = decode_putfh(xdr); 5475bf269551SChuck Lever if (status) 54761da177e4SLinus Torvalds goto out; 5477bf269551SChuck Lever status = decode_savefh(xdr); 5478bf269551SChuck Lever if (status) 547956ae19f3STrond Myklebust goto out; 5480bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 5481bf269551SChuck Lever if (status) 54821da177e4SLinus Torvalds goto out; 5483bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5484bf269551SChuck Lever if (status) 54851da177e4SLinus Torvalds goto out; 5486bf269551SChuck Lever if (decode_getfattr(xdr, res->fattr, res->server, 548780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 548856ae19f3STrond Myklebust goto out; 5489bf269551SChuck Lever status = decode_restorefh(xdr); 5490bf269551SChuck Lever if (status) 549156ae19f3STrond Myklebust goto out; 5492bf269551SChuck Lever decode_getfattr(xdr, res->dir_fattr, res->server, 549380e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 54941da177e4SLinus Torvalds out: 54951da177e4SLinus Torvalds return status; 54961da177e4SLinus Torvalds } 54971da177e4SLinus Torvalds 54981da177e4SLinus Torvalds /* 54991da177e4SLinus Torvalds * Decode SYMLINK response 55001da177e4SLinus Torvalds */ 5501bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5502bf269551SChuck Lever struct nfs4_create_res *res) 55031da177e4SLinus Torvalds { 5504bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 55051da177e4SLinus Torvalds } 55061da177e4SLinus Torvalds 55071da177e4SLinus Torvalds /* 55081da177e4SLinus Torvalds * Decode GETATTR response 55091da177e4SLinus Torvalds */ 5510bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5511bf269551SChuck Lever struct nfs4_getattr_res *res) 55121da177e4SLinus Torvalds { 55131da177e4SLinus Torvalds struct compound_hdr hdr; 55141da177e4SLinus Torvalds int status; 55151da177e4SLinus Torvalds 5516bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 55171da177e4SLinus Torvalds if (status) 55181da177e4SLinus Torvalds goto out; 5519bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55209b7b9fccSAndy Adamson if (status) 55219b7b9fccSAndy Adamson goto out; 5522bf269551SChuck Lever status = decode_putfh(xdr); 55231da177e4SLinus Torvalds if (status) 55241da177e4SLinus Torvalds goto out; 5525bf269551SChuck Lever status = decode_getfattr(xdr, res->fattr, res->server, 552680e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 55271da177e4SLinus Torvalds out: 55281da177e4SLinus Torvalds return status; 55291da177e4SLinus Torvalds } 55301da177e4SLinus Torvalds 553123ec6965SJ. Bruce Fields /* 553223ec6965SJ. Bruce Fields * Encode an SETACL request 553323ec6965SJ. Bruce Fields */ 55349f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 55359f06c719SChuck Lever struct nfs_setaclargs *args) 553623ec6965SJ. Bruce Fields { 553723ec6965SJ. Bruce Fields struct compound_hdr hdr = { 553866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 553923ec6965SJ. Bruce Fields }; 554023ec6965SJ. Bruce Fields 55419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 55429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 55439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 55449f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 5545d017931cSAndy Adamson encode_nops(&hdr); 554623ec6965SJ. Bruce Fields } 554705d564feSAndy Adamson 554823ec6965SJ. Bruce Fields /* 554923ec6965SJ. Bruce Fields * Decode SETACL response 555023ec6965SJ. Bruce Fields */ 555123ec6965SJ. Bruce Fields static int 5552bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 555373c403a9SBenny Halevy struct nfs_setaclres *res) 555423ec6965SJ. Bruce Fields { 555523ec6965SJ. Bruce Fields struct compound_hdr hdr; 555623ec6965SJ. Bruce Fields int status; 555723ec6965SJ. Bruce Fields 5558bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 555923ec6965SJ. Bruce Fields if (status) 556023ec6965SJ. Bruce Fields goto out; 5561bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55629b7b9fccSAndy Adamson if (status) 55639b7b9fccSAndy Adamson goto out; 5564bf269551SChuck Lever status = decode_putfh(xdr); 556523ec6965SJ. Bruce Fields if (status) 556623ec6965SJ. Bruce Fields goto out; 5567bf269551SChuck Lever status = decode_setattr(xdr); 556823ec6965SJ. Bruce Fields out: 556923ec6965SJ. Bruce Fields return status; 557023ec6965SJ. Bruce Fields } 55711da177e4SLinus Torvalds 55721da177e4SLinus Torvalds /* 5573029d105eSJ. Bruce Fields * Decode GETACL response 5574029d105eSJ. Bruce Fields */ 5575029d105eSJ. Bruce Fields static int 5576bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5577663c79b3SBenny Halevy struct nfs_getaclres *res) 5578029d105eSJ. Bruce Fields { 5579029d105eSJ. Bruce Fields struct compound_hdr hdr; 5580029d105eSJ. Bruce Fields int status; 5581029d105eSJ. Bruce Fields 5582bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5583029d105eSJ. Bruce Fields if (status) 5584029d105eSJ. Bruce Fields goto out; 5585bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 55869b7b9fccSAndy Adamson if (status) 55879b7b9fccSAndy Adamson goto out; 5588bf269551SChuck Lever status = decode_putfh(xdr); 5589029d105eSJ. Bruce Fields if (status) 5590029d105eSJ. Bruce Fields goto out; 5591bf269551SChuck Lever status = decode_getacl(xdr, rqstp, &res->acl_len); 5592029d105eSJ. Bruce Fields 5593029d105eSJ. Bruce Fields out: 5594029d105eSJ. Bruce Fields return status; 5595029d105eSJ. Bruce Fields } 5596029d105eSJ. Bruce Fields 5597029d105eSJ. Bruce Fields /* 55981da177e4SLinus Torvalds * Decode CLOSE response 55991da177e4SLinus Torvalds */ 5600bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5601bf269551SChuck Lever struct nfs_closeres *res) 56021da177e4SLinus Torvalds { 56031da177e4SLinus Torvalds struct compound_hdr hdr; 56041da177e4SLinus Torvalds int status; 56051da177e4SLinus Torvalds 5606bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56071da177e4SLinus Torvalds if (status) 56081da177e4SLinus Torvalds goto out; 5609bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56109b7b9fccSAndy Adamson if (status) 56119b7b9fccSAndy Adamson goto out; 5612bf269551SChuck Lever status = decode_putfh(xdr); 56131da177e4SLinus Torvalds if (status) 56141da177e4SLinus Torvalds goto out; 5615bf269551SChuck Lever status = decode_close(xdr, res); 5616516a6af6STrond Myklebust if (status != 0) 5617516a6af6STrond Myklebust goto out; 5618516a6af6STrond Myklebust /* 5619516a6af6STrond Myklebust * Note: Server may do delete on close for this file 5620516a6af6STrond Myklebust * in which case the getattr call will fail with 5621516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 5622516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 5623516a6af6STrond Myklebust */ 5624bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 562580e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 56261da177e4SLinus Torvalds out: 56271da177e4SLinus Torvalds return status; 56281da177e4SLinus Torvalds } 56291da177e4SLinus Torvalds 56301da177e4SLinus Torvalds /* 56311da177e4SLinus Torvalds * Decode OPEN response 56321da177e4SLinus Torvalds */ 5633bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5634bf269551SChuck Lever struct nfs_openres *res) 56351da177e4SLinus Torvalds { 56361da177e4SLinus Torvalds struct compound_hdr hdr; 56371da177e4SLinus Torvalds int status; 56381da177e4SLinus Torvalds 5639bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56401da177e4SLinus Torvalds if (status) 56411da177e4SLinus Torvalds goto out; 5642bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 56439b7b9fccSAndy Adamson if (status) 56449b7b9fccSAndy Adamson goto out; 5645bf269551SChuck Lever status = decode_putfh(xdr); 56461da177e4SLinus Torvalds if (status) 56471da177e4SLinus Torvalds goto out; 5648bf269551SChuck Lever status = decode_savefh(xdr); 564956ae19f3STrond Myklebust if (status) 565056ae19f3STrond Myklebust goto out; 5651bf269551SChuck Lever status = decode_open(xdr, res); 56521da177e4SLinus Torvalds if (status) 56531da177e4SLinus Torvalds goto out; 5654bf269551SChuck Lever if (decode_getfh(xdr, &res->fh) != 0) 56551da177e4SLinus Torvalds goto out; 5656bf269551SChuck Lever if (decode_getfattr(xdr, res->f_attr, res->server, 565780e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)) != 0) 565856ae19f3STrond Myklebust goto out; 5659bf269551SChuck Lever if (decode_restorefh(xdr) != 0) 566056ae19f3STrond Myklebust goto out; 5661bf269551SChuck Lever decode_getfattr(xdr, res->dir_attr, res->server, 566280e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 56631da177e4SLinus Torvalds out: 56641da177e4SLinus Torvalds return status; 56651da177e4SLinus Torvalds } 56661da177e4SLinus Torvalds 56671da177e4SLinus Torvalds /* 56681da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 56691da177e4SLinus Torvalds */ 5670bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 5671bf269551SChuck Lever struct xdr_stream *xdr, 5672bf269551SChuck Lever struct nfs_open_confirmres *res) 56731da177e4SLinus Torvalds { 56741da177e4SLinus Torvalds struct compound_hdr hdr; 56751da177e4SLinus Torvalds int status; 56761da177e4SLinus Torvalds 5677bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56781da177e4SLinus Torvalds if (status) 56791da177e4SLinus Torvalds goto out; 5680bf269551SChuck Lever status = decode_putfh(xdr); 56811da177e4SLinus Torvalds if (status) 56821da177e4SLinus Torvalds goto out; 5683bf269551SChuck Lever status = decode_open_confirm(xdr, res); 56841da177e4SLinus Torvalds out: 56851da177e4SLinus Torvalds return status; 56861da177e4SLinus Torvalds } 56871da177e4SLinus Torvalds 56881da177e4SLinus Torvalds /* 56891da177e4SLinus Torvalds * Decode OPEN response 56901da177e4SLinus Torvalds */ 5691bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 5692bf269551SChuck Lever struct xdr_stream *xdr, 5693bf269551SChuck Lever struct nfs_openres *res) 56941da177e4SLinus Torvalds { 56951da177e4SLinus Torvalds struct compound_hdr hdr; 56961da177e4SLinus Torvalds int status; 56971da177e4SLinus Torvalds 5698bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 56991da177e4SLinus Torvalds if (status) 57001da177e4SLinus Torvalds goto out; 5701bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57029b7b9fccSAndy Adamson if (status) 57039b7b9fccSAndy Adamson goto out; 5704bf269551SChuck Lever status = decode_putfh(xdr); 57051da177e4SLinus Torvalds if (status) 57061da177e4SLinus Torvalds goto out; 5707bf269551SChuck Lever status = decode_open(xdr, res); 5708864472e9STrond Myklebust if (status) 5709864472e9STrond Myklebust goto out; 5710bf269551SChuck Lever decode_getfattr(xdr, res->f_attr, res->server, 571180e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 57121da177e4SLinus Torvalds out: 57131da177e4SLinus Torvalds return status; 57141da177e4SLinus Torvalds } 57151da177e4SLinus Torvalds 57161da177e4SLinus Torvalds /* 57171da177e4SLinus Torvalds * Decode SETATTR response 57181da177e4SLinus Torvalds */ 5719bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 5720bf269551SChuck Lever struct xdr_stream *xdr, 5721bf269551SChuck Lever struct nfs_setattrres *res) 57221da177e4SLinus Torvalds { 57231da177e4SLinus Torvalds struct compound_hdr hdr; 57241da177e4SLinus Torvalds int status; 57251da177e4SLinus Torvalds 5726bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57271da177e4SLinus Torvalds if (status) 57281da177e4SLinus Torvalds goto out; 5729bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57309b7b9fccSAndy Adamson if (status) 57319b7b9fccSAndy Adamson goto out; 5732bf269551SChuck Lever status = decode_putfh(xdr); 57331da177e4SLinus Torvalds if (status) 57341da177e4SLinus Torvalds goto out; 5735bf269551SChuck Lever status = decode_setattr(xdr); 57361da177e4SLinus Torvalds if (status) 57371da177e4SLinus Torvalds goto out; 5738bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 573980e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 57401da177e4SLinus Torvalds out: 57411da177e4SLinus Torvalds return status; 57421da177e4SLinus Torvalds } 57431da177e4SLinus Torvalds 57441da177e4SLinus Torvalds /* 57451da177e4SLinus Torvalds * Decode LOCK response 57461da177e4SLinus Torvalds */ 5747bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5748bf269551SChuck Lever struct nfs_lock_res *res) 57491da177e4SLinus Torvalds { 57501da177e4SLinus Torvalds struct compound_hdr hdr; 57511da177e4SLinus Torvalds int status; 57521da177e4SLinus Torvalds 5753bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57541da177e4SLinus Torvalds if (status) 57551da177e4SLinus Torvalds goto out; 5756bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57579b7b9fccSAndy Adamson if (status) 57589b7b9fccSAndy Adamson goto out; 5759bf269551SChuck Lever status = decode_putfh(xdr); 57601da177e4SLinus Torvalds if (status) 57611da177e4SLinus Torvalds goto out; 5762bf269551SChuck Lever status = decode_lock(xdr, res); 57631da177e4SLinus Torvalds out: 57641da177e4SLinus Torvalds return status; 57651da177e4SLinus Torvalds } 57661da177e4SLinus Torvalds 57671da177e4SLinus Torvalds /* 57681da177e4SLinus Torvalds * Decode LOCKT response 57691da177e4SLinus Torvalds */ 5770bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5771bf269551SChuck Lever struct nfs_lockt_res *res) 57721da177e4SLinus Torvalds { 57731da177e4SLinus Torvalds struct compound_hdr hdr; 57741da177e4SLinus Torvalds int status; 57751da177e4SLinus Torvalds 5776bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57771da177e4SLinus Torvalds if (status) 57781da177e4SLinus Torvalds goto out; 5779bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57809b7b9fccSAndy Adamson if (status) 57819b7b9fccSAndy Adamson goto out; 5782bf269551SChuck Lever status = decode_putfh(xdr); 57831da177e4SLinus Torvalds if (status) 57841da177e4SLinus Torvalds goto out; 5785bf269551SChuck Lever status = decode_lockt(xdr, res); 57861da177e4SLinus Torvalds out: 57871da177e4SLinus Torvalds return status; 57881da177e4SLinus Torvalds } 57891da177e4SLinus Torvalds 57901da177e4SLinus Torvalds /* 57911da177e4SLinus Torvalds * Decode LOCKU response 57921da177e4SLinus Torvalds */ 5793bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5794bf269551SChuck Lever struct nfs_locku_res *res) 57951da177e4SLinus Torvalds { 57961da177e4SLinus Torvalds struct compound_hdr hdr; 57971da177e4SLinus Torvalds int status; 57981da177e4SLinus Torvalds 5799bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58001da177e4SLinus Torvalds if (status) 58011da177e4SLinus Torvalds goto out; 5802bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58039b7b9fccSAndy Adamson if (status) 58049b7b9fccSAndy Adamson goto out; 5805bf269551SChuck Lever status = decode_putfh(xdr); 58061da177e4SLinus Torvalds if (status) 58071da177e4SLinus Torvalds goto out; 5808bf269551SChuck Lever status = decode_locku(xdr, res); 58091da177e4SLinus Torvalds out: 58101da177e4SLinus Torvalds return status; 58111da177e4SLinus Torvalds } 58121da177e4SLinus Torvalds 5813bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 5814bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 5815d3c7b7ccSTrond Myklebust { 5816d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 5817d3c7b7ccSTrond Myklebust int status; 5818d3c7b7ccSTrond Myklebust 5819bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 5820d3c7b7ccSTrond Myklebust if (!status) 5821bf269551SChuck Lever status = decode_release_lockowner(xdr); 5822d3c7b7ccSTrond Myklebust return status; 5823d3c7b7ccSTrond Myklebust } 5824d3c7b7ccSTrond Myklebust 58251da177e4SLinus Torvalds /* 58261da177e4SLinus Torvalds * Decode READLINK response 58271da177e4SLinus Torvalds */ 5828bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 5829bf269551SChuck Lever struct xdr_stream *xdr, 5830f50c7000SBenny Halevy struct nfs4_readlink_res *res) 58311da177e4SLinus Torvalds { 58321da177e4SLinus Torvalds struct compound_hdr hdr; 58331da177e4SLinus Torvalds int status; 58341da177e4SLinus Torvalds 5835bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58361da177e4SLinus Torvalds if (status) 58371da177e4SLinus Torvalds goto out; 5838bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58399b7b9fccSAndy Adamson if (status) 58409b7b9fccSAndy Adamson goto out; 5841bf269551SChuck Lever status = decode_putfh(xdr); 58421da177e4SLinus Torvalds if (status) 58431da177e4SLinus Torvalds goto out; 5844bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 58451da177e4SLinus Torvalds out: 58461da177e4SLinus Torvalds return status; 58471da177e4SLinus Torvalds } 58481da177e4SLinus Torvalds 58491da177e4SLinus Torvalds /* 58501da177e4SLinus Torvalds * Decode READDIR response 58511da177e4SLinus Torvalds */ 5852bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5853bf269551SChuck Lever struct nfs4_readdir_res *res) 58541da177e4SLinus Torvalds { 58551da177e4SLinus Torvalds struct compound_hdr hdr; 58561da177e4SLinus Torvalds int status; 58571da177e4SLinus Torvalds 5858bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58591da177e4SLinus Torvalds if (status) 58601da177e4SLinus Torvalds goto out; 5861bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58629b7b9fccSAndy Adamson if (status) 58639b7b9fccSAndy Adamson goto out; 5864bf269551SChuck Lever status = decode_putfh(xdr); 58651da177e4SLinus Torvalds if (status) 58661da177e4SLinus Torvalds goto out; 5867bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 58681da177e4SLinus Torvalds out: 58691da177e4SLinus Torvalds return status; 58701da177e4SLinus Torvalds } 58711da177e4SLinus Torvalds 58721da177e4SLinus Torvalds /* 58731da177e4SLinus Torvalds * Decode Read response 58741da177e4SLinus Torvalds */ 5875bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5876bf269551SChuck Lever struct nfs_readres *res) 58771da177e4SLinus Torvalds { 58781da177e4SLinus Torvalds struct compound_hdr hdr; 58791da177e4SLinus Torvalds int status; 58801da177e4SLinus Torvalds 5881bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58821da177e4SLinus Torvalds if (status) 58831da177e4SLinus Torvalds goto out; 5884bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58859b7b9fccSAndy Adamson if (status) 58869b7b9fccSAndy Adamson goto out; 5887bf269551SChuck Lever status = decode_putfh(xdr); 58881da177e4SLinus Torvalds if (status) 58891da177e4SLinus Torvalds goto out; 5890bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 58911da177e4SLinus Torvalds if (!status) 58921da177e4SLinus Torvalds status = res->count; 58931da177e4SLinus Torvalds out: 58941da177e4SLinus Torvalds return status; 58951da177e4SLinus Torvalds } 58961da177e4SLinus Torvalds 58971da177e4SLinus Torvalds /* 58981da177e4SLinus Torvalds * Decode WRITE response 58991da177e4SLinus Torvalds */ 5900bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5901bf269551SChuck Lever struct nfs_writeres *res) 59021da177e4SLinus Torvalds { 59031da177e4SLinus Torvalds struct compound_hdr hdr; 59041da177e4SLinus Torvalds int status; 59051da177e4SLinus Torvalds 5906bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59071da177e4SLinus Torvalds if (status) 59081da177e4SLinus Torvalds goto out; 5909bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59109b7b9fccSAndy Adamson if (status) 59119b7b9fccSAndy Adamson goto out; 5912bf269551SChuck Lever status = decode_putfh(xdr); 59131da177e4SLinus Torvalds if (status) 59141da177e4SLinus Torvalds goto out; 5915bf269551SChuck Lever status = decode_write(xdr, res); 59164f9838c7STrond Myklebust if (status) 59174f9838c7STrond Myklebust goto out; 59187ffd1064SFred Isaman if (res->fattr) 5919bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 592080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 59211da177e4SLinus Torvalds if (!status) 59221da177e4SLinus Torvalds status = res->count; 59231da177e4SLinus Torvalds out: 59241da177e4SLinus Torvalds return status; 59251da177e4SLinus Torvalds } 59261da177e4SLinus Torvalds 59271da177e4SLinus Torvalds /* 59281da177e4SLinus Torvalds * Decode COMMIT response 59291da177e4SLinus Torvalds */ 5930bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5931bf269551SChuck Lever struct nfs_writeres *res) 59321da177e4SLinus Torvalds { 59331da177e4SLinus Torvalds struct compound_hdr hdr; 59341da177e4SLinus Torvalds int status; 59351da177e4SLinus Torvalds 5936bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59371da177e4SLinus Torvalds if (status) 59381da177e4SLinus Torvalds goto out; 5939bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59409b7b9fccSAndy Adamson if (status) 59419b7b9fccSAndy Adamson goto out; 5942bf269551SChuck Lever status = decode_putfh(xdr); 59431da177e4SLinus Torvalds if (status) 59441da177e4SLinus Torvalds goto out; 5945bf269551SChuck Lever status = decode_commit(xdr, res); 59464f9838c7STrond Myklebust if (status) 59474f9838c7STrond Myklebust goto out; 5948988b6dceSFred Isaman if (res->fattr) 5949bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 595080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 59511da177e4SLinus Torvalds out: 59521da177e4SLinus Torvalds return status; 59531da177e4SLinus Torvalds } 59541da177e4SLinus Torvalds 59551da177e4SLinus Torvalds /* 59568b173218SRicardo Labiaga * Decode FSINFO response 59571da177e4SLinus Torvalds */ 5958bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 59593dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 59601da177e4SLinus Torvalds { 59611da177e4SLinus Torvalds struct compound_hdr hdr; 59621da177e4SLinus Torvalds int status; 59631da177e4SLinus Torvalds 5964bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59651da177e4SLinus Torvalds if (!status) 5966bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 59679b7b9fccSAndy Adamson if (!status) 5968bf269551SChuck Lever status = decode_putfh(xdr); 59691da177e4SLinus Torvalds if (!status) 5970bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 59711da177e4SLinus Torvalds return status; 59721da177e4SLinus Torvalds } 59731da177e4SLinus Torvalds 59741da177e4SLinus Torvalds /* 59758b173218SRicardo Labiaga * Decode PATHCONF response 59761da177e4SLinus Torvalds */ 5977bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 5978d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 59791da177e4SLinus Torvalds { 59801da177e4SLinus Torvalds struct compound_hdr hdr; 59811da177e4SLinus Torvalds int status; 59821da177e4SLinus Torvalds 5983bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59841da177e4SLinus Torvalds if (!status) 5985bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 59869b7b9fccSAndy Adamson if (!status) 5987bf269551SChuck Lever status = decode_putfh(xdr); 59881da177e4SLinus Torvalds if (!status) 5989bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 59901da177e4SLinus Torvalds return status; 59911da177e4SLinus Torvalds } 59921da177e4SLinus Torvalds 59931da177e4SLinus Torvalds /* 59948b173218SRicardo Labiaga * Decode STATFS response 59951da177e4SLinus Torvalds */ 5996bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 599724ad148aSBenny Halevy struct nfs4_statfs_res *res) 59981da177e4SLinus Torvalds { 59991da177e4SLinus Torvalds struct compound_hdr hdr; 60001da177e4SLinus Torvalds int status; 60011da177e4SLinus Torvalds 6002bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60031da177e4SLinus Torvalds if (!status) 6004bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 60059b7b9fccSAndy Adamson if (!status) 6006bf269551SChuck Lever status = decode_putfh(xdr); 60071da177e4SLinus Torvalds if (!status) 6008bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 60091da177e4SLinus Torvalds return status; 60101da177e4SLinus Torvalds } 60111da177e4SLinus Torvalds 60121da177e4SLinus Torvalds /* 60138b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 60141da177e4SLinus Torvalds */ 6015bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6016bf269551SChuck Lever struct xdr_stream *xdr, 6017bf269551SChuck Lever struct nfs4_server_caps_res *res) 60181da177e4SLinus Torvalds { 60191da177e4SLinus Torvalds struct compound_hdr hdr; 60201da177e4SLinus Torvalds int status; 60211da177e4SLinus Torvalds 6022bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60239b7b9fccSAndy Adamson if (status) 60249b7b9fccSAndy Adamson goto out; 6025bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 60269b7b9fccSAndy Adamson if (status) 60271da177e4SLinus Torvalds goto out; 6028bf269551SChuck Lever status = decode_putfh(xdr); 6029bf269551SChuck Lever if (status) 60301da177e4SLinus Torvalds goto out; 6031bf269551SChuck Lever status = decode_server_caps(xdr, res); 60321da177e4SLinus Torvalds out: 60331da177e4SLinus Torvalds return status; 60341da177e4SLinus Torvalds } 60351da177e4SLinus Torvalds 60361da177e4SLinus Torvalds /* 60371da177e4SLinus Torvalds * Decode RENEW response 60381da177e4SLinus Torvalds */ 6039bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6040bf269551SChuck Lever void *__unused) 60411da177e4SLinus Torvalds { 60421da177e4SLinus Torvalds struct compound_hdr hdr; 60431da177e4SLinus Torvalds int status; 60441da177e4SLinus Torvalds 6045bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60461da177e4SLinus Torvalds if (!status) 6047bf269551SChuck Lever status = decode_renew(xdr); 60481da177e4SLinus Torvalds return status; 60491da177e4SLinus Torvalds } 60501da177e4SLinus Torvalds 60511da177e4SLinus Torvalds /* 60528b173218SRicardo Labiaga * Decode SETCLIENTID response 60531da177e4SLinus Torvalds */ 6054bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6055bf269551SChuck Lever struct xdr_stream *xdr, 6056bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 60571da177e4SLinus Torvalds { 60581da177e4SLinus Torvalds struct compound_hdr hdr; 60591da177e4SLinus Torvalds int status; 60601da177e4SLinus Torvalds 6061bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60621da177e4SLinus Torvalds if (!status) 6063bf269551SChuck Lever status = decode_setclientid(xdr, res); 60641da177e4SLinus Torvalds return status; 60651da177e4SLinus Torvalds } 60661da177e4SLinus Torvalds 60671da177e4SLinus Torvalds /* 60688b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 60691da177e4SLinus Torvalds */ 6070bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6071bf269551SChuck Lever struct xdr_stream *xdr, 6072bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 60731da177e4SLinus Torvalds { 60741da177e4SLinus Torvalds struct compound_hdr hdr; 60751da177e4SLinus Torvalds int status; 60761da177e4SLinus Torvalds 6077bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60781da177e4SLinus Torvalds if (!status) 6079bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 60801da177e4SLinus Torvalds if (!status) 6081bf269551SChuck Lever status = decode_putrootfh(xdr); 60821da177e4SLinus Torvalds if (!status) 6083bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 60841da177e4SLinus Torvalds return status; 60851da177e4SLinus Torvalds } 60861da177e4SLinus Torvalds 60871da177e4SLinus Torvalds /* 60888b173218SRicardo Labiaga * Decode DELEGRETURN response 60891da177e4SLinus Torvalds */ 6090bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6091bf269551SChuck Lever struct xdr_stream *xdr, 6092bf269551SChuck Lever struct nfs4_delegreturnres *res) 60931da177e4SLinus Torvalds { 60941da177e4SLinus Torvalds struct compound_hdr hdr; 60951da177e4SLinus Torvalds int status; 60961da177e4SLinus Torvalds 6097bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60989b7b9fccSAndy Adamson if (status) 60999b7b9fccSAndy Adamson goto out; 6100bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61019b7b9fccSAndy Adamson if (status) 6102fa178f29STrond Myklebust goto out; 6103bf269551SChuck Lever status = decode_putfh(xdr); 6104fa178f29STrond Myklebust if (status != 0) 6105fa178f29STrond Myklebust goto out; 6106bf269551SChuck Lever status = decode_delegreturn(xdr); 6107556ae3bbSJeff Layton if (status != 0) 6108556ae3bbSJeff Layton goto out; 6109bf269551SChuck Lever decode_getfattr(xdr, res->fattr, res->server, 611080e52aceSTrond Myklebust !RPC_IS_ASYNC(rqstp->rq_task)); 6111fa178f29STrond Myklebust out: 61121da177e4SLinus Torvalds return status; 61131da177e4SLinus Torvalds } 61141da177e4SLinus Torvalds 6115683b57b4STrond Myklebust /* 61168b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6117683b57b4STrond Myklebust */ 6118bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6119bf269551SChuck Lever struct xdr_stream *xdr, 612022958463SBenny Halevy struct nfs4_fs_locations_res *res) 6121683b57b4STrond Myklebust { 6122683b57b4STrond Myklebust struct compound_hdr hdr; 6123683b57b4STrond Myklebust int status; 6124683b57b4STrond Myklebust 6125bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61269b7b9fccSAndy Adamson if (status) 61279b7b9fccSAndy Adamson goto out; 6128bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 61299b7b9fccSAndy Adamson if (status) 6130683b57b4STrond Myklebust goto out; 6131bf269551SChuck Lever status = decode_putfh(xdr); 6132bf269551SChuck Lever if (status) 6133683b57b4STrond Myklebust goto out; 6134bf269551SChuck Lever status = decode_lookup(xdr); 6135bf269551SChuck Lever if (status) 6136683b57b4STrond Myklebust goto out; 6137bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6138bf269551SChuck Lever status = decode_getfattr(xdr, &res->fs_locations->fattr, 613980e52aceSTrond Myklebust res->fs_locations->server, 614080e52aceSTrond Myklebust !RPC_IS_ASYNC(req->rq_task)); 6141683b57b4STrond Myklebust out: 6142683b57b4STrond Myklebust return status; 6143683b57b4STrond Myklebust } 6144683b57b4STrond Myklebust 61455a5ea0d4SBryan Schumaker /* 61465a5ea0d4SBryan Schumaker * Decode SECINFO response 61475a5ea0d4SBryan Schumaker */ 61485a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 61495a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 61505a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 61515a5ea0d4SBryan Schumaker { 61525a5ea0d4SBryan Schumaker struct compound_hdr hdr; 61535a5ea0d4SBryan Schumaker int status; 61545a5ea0d4SBryan Schumaker 61555a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 61565a5ea0d4SBryan Schumaker if (status) 61575a5ea0d4SBryan Schumaker goto out; 61585a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 61595a5ea0d4SBryan Schumaker if (status) 61605a5ea0d4SBryan Schumaker goto out; 61615a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 61625a5ea0d4SBryan Schumaker if (status) 61635a5ea0d4SBryan Schumaker goto out; 61645a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 61655a5ea0d4SBryan Schumaker if (status) 61665a5ea0d4SBryan Schumaker goto out; 61675a5ea0d4SBryan Schumaker out: 61685a5ea0d4SBryan Schumaker return status; 61695a5ea0d4SBryan Schumaker } 61705a5ea0d4SBryan Schumaker 617199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 617299fe60d0SBenny Halevy /* 61738b173218SRicardo Labiaga * Decode EXCHANGE_ID response 617499fe60d0SBenny Halevy */ 6175bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6176bf269551SChuck Lever struct xdr_stream *xdr, 617799fe60d0SBenny Halevy void *res) 617899fe60d0SBenny Halevy { 617999fe60d0SBenny Halevy struct compound_hdr hdr; 618099fe60d0SBenny Halevy int status; 618199fe60d0SBenny Halevy 6182bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 618399fe60d0SBenny Halevy if (!status) 6184bf269551SChuck Lever status = decode_exchange_id(xdr, res); 618599fe60d0SBenny Halevy return status; 618699fe60d0SBenny Halevy } 61872050f0ccSAndy Adamson 61882050f0ccSAndy Adamson /* 61898b173218SRicardo Labiaga * Decode CREATE_SESSION response 6190fc931582SAndy Adamson */ 6191bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6192bf269551SChuck Lever struct xdr_stream *xdr, 6193fc931582SAndy Adamson struct nfs41_create_session_res *res) 6194fc931582SAndy Adamson { 6195fc931582SAndy Adamson struct compound_hdr hdr; 6196fc931582SAndy Adamson int status; 6197fc931582SAndy Adamson 6198bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6199fc931582SAndy Adamson if (!status) 6200bf269551SChuck Lever status = decode_create_session(xdr, res); 6201fc931582SAndy Adamson return status; 6202fc931582SAndy Adamson } 6203fc931582SAndy Adamson 6204fc931582SAndy Adamson /* 62058b173218SRicardo Labiaga * Decode DESTROY_SESSION response 62060f3e66c6SAndy Adamson */ 6207bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6208bf269551SChuck Lever struct xdr_stream *xdr, 6209bf269551SChuck Lever void *res) 62100f3e66c6SAndy Adamson { 62110f3e66c6SAndy Adamson struct compound_hdr hdr; 62120f3e66c6SAndy Adamson int status; 62130f3e66c6SAndy Adamson 6214bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62150f3e66c6SAndy Adamson if (!status) 6216bf269551SChuck Lever status = decode_destroy_session(xdr, res); 62170f3e66c6SAndy Adamson return status; 62180f3e66c6SAndy Adamson } 62190f3e66c6SAndy Adamson 62200f3e66c6SAndy Adamson /* 62218b173218SRicardo Labiaga * Decode SEQUENCE response 6222fc01cea9SAndy Adamson */ 6223bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6224bf269551SChuck Lever struct xdr_stream *xdr, 6225fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6226fc01cea9SAndy Adamson { 6227fc01cea9SAndy Adamson struct compound_hdr hdr; 6228fc01cea9SAndy Adamson int status; 6229fc01cea9SAndy Adamson 6230bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6231fc01cea9SAndy Adamson if (!status) 6232bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6233fc01cea9SAndy Adamson return status; 6234fc01cea9SAndy Adamson } 6235fc01cea9SAndy Adamson 6236fc01cea9SAndy Adamson /* 62378b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 62382050f0ccSAndy Adamson */ 6239bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6240bf269551SChuck Lever struct xdr_stream *xdr, 62412050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 62422050f0ccSAndy Adamson { 62432050f0ccSAndy Adamson struct compound_hdr hdr; 62442050f0ccSAndy Adamson int status; 62452050f0ccSAndy Adamson 6246bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62472050f0ccSAndy Adamson if (!status) 6248bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 62492050f0ccSAndy Adamson if (!status) 6250bf269551SChuck Lever status = decode_putrootfh(xdr); 62512050f0ccSAndy Adamson if (!status) 6252bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 62532050f0ccSAndy Adamson return status; 62542050f0ccSAndy Adamson } 625518019753SRicardo Labiaga 625618019753SRicardo Labiaga /* 625718019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 625818019753SRicardo Labiaga */ 6259bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6260bf269551SChuck Lever struct xdr_stream *xdr, 626118019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 626218019753SRicardo Labiaga { 626318019753SRicardo Labiaga struct compound_hdr hdr; 626418019753SRicardo Labiaga int status; 626518019753SRicardo Labiaga 6266bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 626718019753SRicardo Labiaga if (!status) 6268bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 626918019753SRicardo Labiaga if (!status) 6270bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 627118019753SRicardo Labiaga return status; 627218019753SRicardo Labiaga } 6273b1f69b75SAndy Adamson 6274b1f69b75SAndy Adamson /* 6275b1f69b75SAndy Adamson * Decode GETDEVINFO response 6276b1f69b75SAndy Adamson */ 6277bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6278bf269551SChuck Lever struct xdr_stream *xdr, 6279b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6280b1f69b75SAndy Adamson { 6281b1f69b75SAndy Adamson struct compound_hdr hdr; 6282b1f69b75SAndy Adamson int status; 6283b1f69b75SAndy Adamson 6284bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6285b1f69b75SAndy Adamson if (status != 0) 6286b1f69b75SAndy Adamson goto out; 6287bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6288b1f69b75SAndy Adamson if (status != 0) 6289b1f69b75SAndy Adamson goto out; 6290bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6291b1f69b75SAndy Adamson out: 6292b1f69b75SAndy Adamson return status; 6293b1f69b75SAndy Adamson } 6294b1f69b75SAndy Adamson 6295b1f69b75SAndy Adamson /* 6296b1f69b75SAndy Adamson * Decode LAYOUTGET response 6297b1f69b75SAndy Adamson */ 6298bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6299bf269551SChuck Lever struct xdr_stream *xdr, 6300b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6301b1f69b75SAndy Adamson { 6302b1f69b75SAndy Adamson struct compound_hdr hdr; 6303b1f69b75SAndy Adamson int status; 6304b1f69b75SAndy Adamson 6305bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6306b1f69b75SAndy Adamson if (status) 6307b1f69b75SAndy Adamson goto out; 6308bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6309b1f69b75SAndy Adamson if (status) 6310b1f69b75SAndy Adamson goto out; 6311bf269551SChuck Lever status = decode_putfh(xdr); 6312b1f69b75SAndy Adamson if (status) 6313b1f69b75SAndy Adamson goto out; 6314bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6315b1f69b75SAndy Adamson out: 6316b1f69b75SAndy Adamson return status; 6317b1f69b75SAndy Adamson } 6318863a3c6cSAndy Adamson 6319863a3c6cSAndy Adamson /* 6320863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6321863a3c6cSAndy Adamson */ 6322863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6323863a3c6cSAndy Adamson struct xdr_stream *xdr, 6324863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6325863a3c6cSAndy Adamson { 6326863a3c6cSAndy Adamson struct compound_hdr hdr; 6327863a3c6cSAndy Adamson int status; 6328863a3c6cSAndy Adamson 6329863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6330863a3c6cSAndy Adamson if (status) 6331863a3c6cSAndy Adamson goto out; 6332863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6333863a3c6cSAndy Adamson if (status) 6334863a3c6cSAndy Adamson goto out; 6335863a3c6cSAndy Adamson status = decode_putfh(xdr); 6336863a3c6cSAndy Adamson if (status) 6337863a3c6cSAndy Adamson goto out; 6338863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6339863a3c6cSAndy Adamson if (status) 6340863a3c6cSAndy Adamson goto out; 6341863a3c6cSAndy Adamson decode_getfattr(xdr, res->fattr, res->server, 6342863a3c6cSAndy Adamson !RPC_IS_ASYNC(rqstp->rq_task)); 6343863a3c6cSAndy Adamson out: 6344863a3c6cSAndy Adamson return status; 6345863a3c6cSAndy Adamson } 634699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 634799fe60d0SBenny Halevy 6348573c4e1eSChuck Lever /** 6349573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 6350573c4e1eSChuck Lever * the local page cache. 6351573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 6352573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 6353573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 6354573c4e1eSChuck Lever * 6355573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 6356573c4e1eSChuck Lever * returned. 6357573c4e1eSChuck Lever * 6358573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 6359573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 6360573c4e1eSChuck Lever * on a directory already in our cache. 6361573c4e1eSChuck Lever */ 6362573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 6363573c4e1eSChuck Lever int plus) 63641da177e4SLinus Torvalds { 63651da177e4SLinus Torvalds uint32_t bitmap[2] = {0}; 63661da177e4SLinus Torvalds uint32_t len; 6367babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 6368babddc72SBryan Schumaker if (unlikely(!p)) 6369babddc72SBryan Schumaker goto out_overflow; 6370c08e76d0SChuck Lever if (*p == xdr_zero) { 6371babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 6372babddc72SBryan Schumaker if (unlikely(!p)) 6373babddc72SBryan Schumaker goto out_overflow; 6374c08e76d0SChuck Lever if (*p == xdr_zero) 6375573c4e1eSChuck Lever return -EAGAIN; 63761da177e4SLinus Torvalds entry->eof = 1; 6377573c4e1eSChuck Lever return -EBADCOOKIE; 63781da177e4SLinus Torvalds } 63791da177e4SLinus Torvalds 6380babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 6381babddc72SBryan Schumaker if (unlikely(!p)) 6382babddc72SBryan Schumaker goto out_overflow; 63831da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 63841da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 6385c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 6386babddc72SBryan Schumaker 63879af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 6388babddc72SBryan Schumaker if (unlikely(!p)) 6389babddc72SBryan Schumaker goto out_overflow; 63901da177e4SLinus Torvalds entry->name = (const char *) p; 63911da177e4SLinus Torvalds 63921da177e4SLinus Torvalds /* 63931da177e4SLinus Torvalds * In case the server doesn't return an inode number, 63941da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 63951da177e4SLinus Torvalds * since glibc seems to choke on it...) 63961da177e4SLinus Torvalds */ 63971da177e4SLinus Torvalds entry->ino = 1; 63984f082222STrond Myklebust entry->fattr->valid = 0; 63991da177e4SLinus Torvalds 64009af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 6401babddc72SBryan Schumaker goto out_overflow; 64029af8c222STrond Myklebust 64039af8c222STrond Myklebust if (decode_attr_length(xdr, &len, &p) < 0) 6404babddc72SBryan Schumaker goto out_overflow; 64059af8c222STrond Myklebust 6406573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 6407573c4e1eSChuck Lever entry->server, 1) < 0) 6408babddc72SBryan Schumaker goto out_overflow; 640928331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 641028331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 641128331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 641282f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 64139af8c222STrond Myklebust 64140b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 64150b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 64160b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 64170b26a0bfSTrond Myklebust 6418573c4e1eSChuck Lever return 0; 6419babddc72SBryan Schumaker 6420babddc72SBryan Schumaker out_overflow: 6421babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 6422573c4e1eSChuck Lever return -EAGAIN; 64231da177e4SLinus Torvalds } 64241da177e4SLinus Torvalds 64251da177e4SLinus Torvalds /* 64261da177e4SLinus Torvalds * We need to translate between nfs status return values and 64271da177e4SLinus Torvalds * the local errno values which may not be the same. 64281da177e4SLinus Torvalds */ 64291da177e4SLinus Torvalds static struct { 64301da177e4SLinus Torvalds int stat; 64311da177e4SLinus Torvalds int errno; 64321da177e4SLinus Torvalds } nfs_errtbl[] = { 64331da177e4SLinus Torvalds { NFS4_OK, 0 }, 6434856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 6435856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 6436856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 6437856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 6438856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 6439856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 6440856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 6441856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 6442856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 6443856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 6444856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 6445856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 6446856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 6447856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 6448856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 6449856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 6450856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 6451856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 6452856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 6453856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 6454856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 6455856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 6456fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 6457856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 6458856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 6459856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 6460856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 6461856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 6462856dff3dSBenny Halevy { -1, -EIO } 64631da177e4SLinus Torvalds }; 64641da177e4SLinus Torvalds 64651da177e4SLinus Torvalds /* 64661da177e4SLinus Torvalds * Convert an NFS error code to a local one. 64671da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 64681da177e4SLinus Torvalds */ 64691da177e4SLinus Torvalds static int 64700a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 64711da177e4SLinus Torvalds { 64721da177e4SLinus Torvalds int i; 64731da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 64741da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 64751da177e4SLinus Torvalds return nfs_errtbl[i].errno; 64761da177e4SLinus Torvalds } 64771da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 64781da177e4SLinus Torvalds /* The server is looney tunes. */ 6479fdcb4577STrond Myklebust return -EREMOTEIO; 64801da177e4SLinus Torvalds } 64811da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 64821da177e4SLinus Torvalds * handle it. 64831da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 64841da177e4SLinus Torvalds * not conflict with native Linux error codes. 64851da177e4SLinus Torvalds */ 6486856dff3dSBenny Halevy return -stat; 64871da177e4SLinus Torvalds } 64881da177e4SLinus Torvalds 64891da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 64901da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 64911da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 64929f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 6493bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 64942bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 64952bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 6496cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 6497cc0175c1SChuck Lever .p_name = #proc, \ 64981da177e4SLinus Torvalds } 64991da177e4SLinus Torvalds 65001da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 65011da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 65021da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 65031da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 65041da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 65051da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 65061da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 65071da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 65081da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 65091da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 65101da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 65111da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 65121da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 65131da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 65141da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 65151da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 65161da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 65171da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 65181da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 65191da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 65201da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 65211da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 65221da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 65231da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 65241da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 65251da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 65261da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 65271da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 65281da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 65291da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 65301da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 65311da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 6532029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 653323ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 6534683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 6535d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 65365a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 653799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 653899fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 6539fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 65400f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 6541fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 65422050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 654318019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 6544b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 6545b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 6546863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 654799fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 65481da177e4SLinus Torvalds }; 65491da177e4SLinus Torvalds 65501da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 65511da177e4SLinus Torvalds .number = 4, 6552e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 65531da177e4SLinus Torvalds .procs = nfs4_procedures 65541da177e4SLinus Torvalds }; 65551da177e4SLinus Torvalds 65561da177e4SLinus Torvalds /* 65571da177e4SLinus Torvalds * Local variables: 65581da177e4SLinus Torvalds * c-basic-offset: 8 65591da177e4SLinus Torvalds * End: 65601da177e4SLinus Torvalds */ 6561