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)) 94e5012d1fSAndy Adamson #define nfs4_fattr_bitmap_maxsz 4 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) 116dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 117dae100c2SFred Isaman * layout types will be returned. 118dae100c2SFred Isaman */ 119dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 120dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1211da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1221da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1231da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1241da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 125cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 126cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 127cc38bac3SChuck Lever 1 /* sc_prog */ + \ 128cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 129cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 130cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1311da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1321da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1331da177e4SLinus Torvalds 2 + \ 1341da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1351da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1361da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1371da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1381da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1391da177e4SLinus Torvalds (op_decode_hdr_maxsz) 140e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 141e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1422cebf828STrond Myklebust #define encode_share_access_maxsz \ 1432cebf828STrond Myklebust (2) 1444882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1452cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1462cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1472cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1482cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1492cebf828STrond Myklebust open_owner_id_maxsz + \ 1502cebf828STrond Myklebust encode_opentype_maxsz + \ 1512cebf828STrond Myklebust encode_claim_null_maxsz) 1522cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1539104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1542cebf828STrond Myklebust decode_ace_maxsz) 1552cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1562cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1579104a55dSTrond Myklebust decode_stateid_maxsz + \ 1582cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1592cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1602cebf828STrond Myklebust decode_delegation_maxsz) 1619104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1629104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1639104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1649104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1659104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1669104a55dSTrond Myklebust decode_stateid_maxsz) 1679104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1689104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1699104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1709104a55dSTrond Myklebust encode_share_access_maxsz) 1719104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1729104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1739104a55dSTrond Myklebust decode_stateid_maxsz) 1749104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1759104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1769104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1779104a55dSTrond Myklebust decode_stateid_maxsz) 1789104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1799104a55dSTrond Myklebust encode_stateid_maxsz + \ 1809104a55dSTrond Myklebust encode_attrs_maxsz) 1819104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1829104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1839104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1849104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1859104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1869104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1879104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1889104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1899104a55dSTrond Myklebust decode_verifier_maxsz) 1909104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1919104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1929104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1939104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1949104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1959104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1969104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1979104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 1989104a55dSTrond Myklebust decode_verifier_maxsz) 1991da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2001da177e4SLinus Torvalds nfs4_name_maxsz) 2016ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2026ce18391SBenny Halevy decode_change_info_maxsz) 2031da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2041da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2056ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2066ce18391SBenny Halevy decode_change_info_maxsz + \ 2076ce18391SBenny Halevy decode_change_info_maxsz) 2081da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2091da177e4SLinus Torvalds nfs4_name_maxsz) 2106ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 211daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2129104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2139104a55dSTrond Myklebust 7 + \ 214daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 215daccbdedSTrond Myklebust encode_lockowner_maxsz) 2169104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2179104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2189104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2199104a55dSTrond Myklebust decode_lock_denied_maxsz) 220daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 221daccbdedSTrond Myklebust encode_lockowner_maxsz) 2229104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2239104a55dSTrond Myklebust decode_lock_denied_maxsz) 2249104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2259104a55dSTrond Myklebust encode_stateid_maxsz + \ 2269104a55dSTrond Myklebust 4) 2279104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2289104a55dSTrond Myklebust decode_stateid_maxsz) 229d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 230d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 231d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 232d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 233d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2349104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2359104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2361da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2371da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 23894a6d753SChuck Lever 1 + \ 23996928206SJ. Bruce Fields nfs4_fattr_maxsz) 2401da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2411da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2429104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2439104a55dSTrond Myklebust encode_attrs_maxsz) 2442cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2452cebf828STrond Myklebust decode_change_info_maxsz + \ 2462cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2479104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2489104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2491da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2501da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2519104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2529104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2539104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2549104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2559104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2569104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 257e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 258e6889620STrond Myklebust (encode_getattr_maxsz) 259e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 260e6889620STrond Myklebust (0) 2615a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2621650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2639b7b9fccSAndy Adamson 2649b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 265fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 266fc931582SAndy Adamson 26799fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 26899fe60d0SBenny Halevy encode_verifier_maxsz + \ 26999fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 27099fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 27199fe60d0SBenny Halevy 1 /* flags */ + \ 27299fe60d0SBenny Halevy 1 /* spa_how */ + \ 27399fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 27499fe60d0SBenny Halevy 1 /* zero implemetation id array */) 27599fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 27699fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 27799fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 27899fe60d0SBenny Halevy 1 /* eir_flags */ + \ 27999fe60d0SBenny Halevy 1 /* spr_how */ + \ 28099fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 28199fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 28299fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 28399fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 28499fe60d0SBenny Halevy /* eir_server_scope<> */ \ 28599fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 28699fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 28799fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 288fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 289fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 290fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 291fc931582SAndy Adamson 1 /* ca_rdma_ird */) 292fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 293fc931582SAndy Adamson 2 /* csa_clientid */ + \ 294fc931582SAndy Adamson 1 /* csa_sequence */ + \ 295fc931582SAndy Adamson 1 /* csa_flags */ + \ 296fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 297fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 298fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 299fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 300fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 301fc931582SAndy Adamson 1 /* stamp */ + \ 302fc931582SAndy Adamson 1 /* machinename.len */ + \ 303fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 304fc931582SAndy Adamson 1 /* uid */ + \ 305fc931582SAndy Adamson 1 /* gid */ + \ 306fc931582SAndy Adamson 1 /* gids.len (0) */) 307fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 308fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 309fc931582SAndy Adamson 1 /* csr_sequence */ + \ 310fc931582SAndy Adamson 1 /* csr_flags */ + \ 311fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 312fc931582SAndy Adamson decode_channel_attrs_maxsz) 3130f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3140f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 315fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 316fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 317fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 318fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 31918019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 32018019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3217f11d8d3SAndy Adamson #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \ 3227f11d8d3SAndy Adamson encode_verifier_maxsz) 3237f11d8d3SAndy Adamson #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \ 3247f11d8d3SAndy Adamson 2 /* nfs_cookie4 gdlr_cookie */ + \ 3257f11d8d3SAndy Adamson decode_verifier_maxsz \ 3267f11d8d3SAndy Adamson /* verifier4 gdlr_verifier */ + \ 3277f11d8d3SAndy Adamson 1 /* gdlr_deviceid_list count */ + \ 3287f11d8d3SAndy Adamson XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \ 3297f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE) \ 3307f11d8d3SAndy Adamson /* gdlr_deviceid_list */ + \ 3317f11d8d3SAndy Adamson 1 /* bool gdlr_eof */) 332b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 333b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 334b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 335b1f69b75SAndy Adamson 1 /* layout type */ + \ 336b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 337b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 338b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 339b1f69b75SAndy Adamson 1 /* notification bitmap */) 340b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 341b1f69b75SAndy Adamson encode_stateid_maxsz) 342b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 343b1f69b75SAndy Adamson decode_stateid_maxsz + \ 344b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 345863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 346863a3c6cSAndy Adamson 2 /* offset */ + \ 347863a3c6cSAndy Adamson 2 /* length */ + \ 348863a3c6cSAndy Adamson 1 /* reclaim */ + \ 349863a3c6cSAndy Adamson encode_stateid_maxsz + \ 350863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 351863a3c6cSAndy Adamson 2 /* last byte written */ + \ 352863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 353863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 354863a3c6cSAndy Adamson 1 /* NULL filelayout layoutupdate4 payload */) 355863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 356cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 357cbe82603SBenny Halevy encode_stateid_maxsz + \ 358cbe82603SBenny Halevy 1 /* FIXME: opaque lrf_body always empty at the moment */) 359cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 360cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 361fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 362fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 3637d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 3647d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3657d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 3669aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 3679aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3689aeda35fSBryan Schumaker #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1) 3699b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3709b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3719b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3729b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3739b7b9fccSAndy Adamson 3741da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3751da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3761da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3779b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3781da177e4SLinus Torvalds encode_putfh_maxsz + \ 3799104a55dSTrond Myklebust encode_read_maxsz) 3801da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3819b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3821da177e4SLinus Torvalds decode_putfh_maxsz + \ 3839104a55dSTrond Myklebust decode_read_maxsz) 3841da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3859b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3861da177e4SLinus Torvalds encode_putfh_maxsz + \ 3879104a55dSTrond Myklebust encode_readlink_maxsz) 3881da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3899b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3901da177e4SLinus Torvalds decode_putfh_maxsz + \ 3919104a55dSTrond Myklebust decode_readlink_maxsz) 3921da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 3939b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3941da177e4SLinus Torvalds encode_putfh_maxsz + \ 3959104a55dSTrond Myklebust encode_readdir_maxsz) 3961da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 3979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3981da177e4SLinus Torvalds decode_putfh_maxsz + \ 3999104a55dSTrond Myklebust decode_readdir_maxsz) 4001da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4021da177e4SLinus Torvalds encode_putfh_maxsz + \ 4039104a55dSTrond Myklebust encode_write_maxsz + \ 4044f9838c7STrond Myklebust encode_getattr_maxsz) 4051da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4069b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4071da177e4SLinus Torvalds decode_putfh_maxsz + \ 4089104a55dSTrond Myklebust decode_write_maxsz + \ 4094f9838c7STrond Myklebust decode_getattr_maxsz) 4101da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4121da177e4SLinus Torvalds encode_putfh_maxsz + \ 4139104a55dSTrond Myklebust encode_commit_maxsz + \ 4144f9838c7STrond Myklebust encode_getattr_maxsz) 4151da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4169b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4171da177e4SLinus Torvalds decode_putfh_maxsz + \ 4189104a55dSTrond Myklebust decode_commit_maxsz + \ 4194f9838c7STrond Myklebust decode_getattr_maxsz) 4201da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4219b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4221da177e4SLinus Torvalds encode_putfh_maxsz + \ 4232cebf828STrond Myklebust encode_savefh_maxsz + \ 4242cebf828STrond Myklebust encode_open_maxsz + \ 4252cebf828STrond Myklebust encode_getfh_maxsz + \ 4261da177e4SLinus Torvalds encode_getattr_maxsz + \ 4272cebf828STrond Myklebust encode_restorefh_maxsz + \ 4282cebf828STrond Myklebust encode_getattr_maxsz) 4291da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4309b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4311da177e4SLinus Torvalds decode_putfh_maxsz + \ 4322cebf828STrond Myklebust decode_savefh_maxsz + \ 4332cebf828STrond Myklebust decode_open_maxsz + \ 4342cebf828STrond Myklebust decode_getfh_maxsz + \ 4351da177e4SLinus Torvalds decode_getattr_maxsz + \ 4362cebf828STrond Myklebust decode_restorefh_maxsz + \ 4372cebf828STrond Myklebust decode_getattr_maxsz) 4381da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4391da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4401da177e4SLinus Torvalds encode_putfh_maxsz + \ 4419104a55dSTrond Myklebust encode_open_confirm_maxsz) 4429104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4439104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4441da177e4SLinus Torvalds decode_putfh_maxsz + \ 4459104a55dSTrond Myklebust decode_open_confirm_maxsz) 4461da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4479b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4481da177e4SLinus Torvalds encode_putfh_maxsz + \ 4492cebf828STrond Myklebust encode_open_maxsz + \ 4502cebf828STrond Myklebust encode_getattr_maxsz) 4511da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4529b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4531da177e4SLinus Torvalds decode_putfh_maxsz + \ 4542cebf828STrond Myklebust decode_open_maxsz + \ 4552cebf828STrond Myklebust decode_getattr_maxsz) 4561da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4571da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4589b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4591da177e4SLinus Torvalds encode_putfh_maxsz + \ 4609104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 461516a6af6STrond Myklebust encode_getattr_maxsz) 4621da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4631da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4649b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4651da177e4SLinus Torvalds decode_putfh_maxsz + \ 4669104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 467516a6af6STrond Myklebust decode_getattr_maxsz) 4681da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4701da177e4SLinus Torvalds encode_putfh_maxsz + \ 4719104a55dSTrond Myklebust encode_close_maxsz + \ 472516a6af6STrond Myklebust encode_getattr_maxsz) 4731da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4749b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4751da177e4SLinus Torvalds decode_putfh_maxsz + \ 4769104a55dSTrond Myklebust decode_close_maxsz + \ 477516a6af6STrond Myklebust decode_getattr_maxsz) 4781da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4799b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4801da177e4SLinus Torvalds encode_putfh_maxsz + \ 4819104a55dSTrond Myklebust encode_setattr_maxsz + \ 4821da177e4SLinus Torvalds encode_getattr_maxsz) 4831da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4849b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4851da177e4SLinus Torvalds decode_putfh_maxsz + \ 4869104a55dSTrond Myklebust decode_setattr_maxsz + \ 4879104a55dSTrond Myklebust decode_getattr_maxsz) 4881da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4899b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4901da177e4SLinus Torvalds encode_putfh_maxsz + \ 4911da177e4SLinus Torvalds encode_fsinfo_maxsz) 4921da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 4939b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4941da177e4SLinus Torvalds decode_putfh_maxsz + \ 4951da177e4SLinus Torvalds decode_fsinfo_maxsz) 4961da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 4971da177e4SLinus Torvalds encode_renew_maxsz) 4981da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 4991da177e4SLinus Torvalds decode_renew_maxsz) 5001da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5011da177e4SLinus Torvalds encode_setclientid_maxsz) 5021da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5031da177e4SLinus Torvalds decode_setclientid_maxsz) 5041da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5051da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5061da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 5071da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5081da177e4SLinus Torvalds encode_fsinfo_maxsz) 5091da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5101da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5111da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 5121da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5131da177e4SLinus Torvalds decode_fsinfo_maxsz) 5141da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5159b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5161da177e4SLinus Torvalds encode_putfh_maxsz + \ 5179104a55dSTrond Myklebust encode_lock_maxsz) 5181da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5199b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5201da177e4SLinus Torvalds decode_putfh_maxsz + \ 5219104a55dSTrond Myklebust decode_lock_maxsz) 5221da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5239b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5241da177e4SLinus Torvalds encode_putfh_maxsz + \ 5259104a55dSTrond Myklebust encode_lockt_maxsz) 5269104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5279b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5289104a55dSTrond Myklebust decode_putfh_maxsz + \ 5299104a55dSTrond Myklebust decode_lockt_maxsz) 5301da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5319b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5321da177e4SLinus Torvalds encode_putfh_maxsz + \ 5339104a55dSTrond Myklebust encode_locku_maxsz) 5341da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5359b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5361da177e4SLinus Torvalds decode_putfh_maxsz + \ 5379104a55dSTrond Myklebust decode_locku_maxsz) 538d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 539d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 540d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 541d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 542d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 543d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5441da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5459b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5461da177e4SLinus Torvalds encode_putfh_maxsz + \ 54776b32999STrond Myklebust encode_access_maxsz + \ 54876b32999STrond Myklebust encode_getattr_maxsz) 5491da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5509b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5511da177e4SLinus Torvalds decode_putfh_maxsz + \ 55276b32999STrond Myklebust decode_access_maxsz + \ 55376b32999STrond Myklebust decode_getattr_maxsz) 5541da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5559b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5561da177e4SLinus Torvalds encode_putfh_maxsz + \ 5571da177e4SLinus Torvalds encode_getattr_maxsz) 5581da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5599b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5601da177e4SLinus Torvalds decode_putfh_maxsz + \ 5611da177e4SLinus Torvalds decode_getattr_maxsz) 5621da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5639b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5641da177e4SLinus Torvalds encode_putfh_maxsz + \ 5651da177e4SLinus Torvalds encode_lookup_maxsz + \ 5661da177e4SLinus Torvalds encode_getattr_maxsz + \ 5671da177e4SLinus Torvalds encode_getfh_maxsz) 5681da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5699b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5701da177e4SLinus Torvalds decode_putfh_maxsz + \ 571e6889620STrond Myklebust decode_lookup_maxsz + \ 5721da177e4SLinus Torvalds decode_getattr_maxsz + \ 5731da177e4SLinus Torvalds decode_getfh_maxsz) 5741da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5759b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5761da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5771da177e4SLinus Torvalds encode_getattr_maxsz + \ 5781da177e4SLinus Torvalds encode_getfh_maxsz) 5791da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5811da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5821da177e4SLinus Torvalds decode_getattr_maxsz + \ 5831da177e4SLinus Torvalds decode_getfh_maxsz) 5841da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5859b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5861da177e4SLinus Torvalds encode_putfh_maxsz + \ 58716e42959STrond Myklebust encode_remove_maxsz + \ 58816e42959STrond Myklebust encode_getattr_maxsz) 5891da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5909b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5911da177e4SLinus Torvalds decode_putfh_maxsz + \ 5926ce18391SBenny Halevy decode_remove_maxsz + \ 59316e42959STrond Myklebust decode_getattr_maxsz) 5941da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 5959b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5961da177e4SLinus Torvalds encode_putfh_maxsz + \ 5971da177e4SLinus Torvalds encode_savefh_maxsz + \ 5981da177e4SLinus Torvalds encode_putfh_maxsz + \ 5996caf2c82STrond Myklebust encode_rename_maxsz + \ 6006caf2c82STrond Myklebust encode_getattr_maxsz + \ 6016caf2c82STrond Myklebust encode_restorefh_maxsz + \ 6026caf2c82STrond Myklebust encode_getattr_maxsz) 6031da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6049b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6051da177e4SLinus Torvalds decode_putfh_maxsz + \ 6061da177e4SLinus Torvalds decode_savefh_maxsz + \ 6071da177e4SLinus Torvalds decode_putfh_maxsz + \ 6086caf2c82STrond Myklebust decode_rename_maxsz + \ 6096caf2c82STrond Myklebust decode_getattr_maxsz + \ 6106caf2c82STrond Myklebust decode_restorefh_maxsz + \ 6116caf2c82STrond Myklebust decode_getattr_maxsz) 6121da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6139b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6141da177e4SLinus Torvalds encode_putfh_maxsz + \ 6151da177e4SLinus Torvalds encode_savefh_maxsz + \ 6161da177e4SLinus Torvalds encode_putfh_maxsz + \ 61791ba2eeeSTrond Myklebust encode_link_maxsz + \ 61891ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 61991ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 62091ba2eeeSTrond Myklebust decode_getattr_maxsz) 6211da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6229b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6231da177e4SLinus Torvalds decode_putfh_maxsz + \ 6241da177e4SLinus Torvalds decode_savefh_maxsz + \ 6251da177e4SLinus Torvalds decode_putfh_maxsz + \ 62691ba2eeeSTrond Myklebust decode_link_maxsz + \ 62791ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 62891ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 62991ba2eeeSTrond Myklebust decode_getattr_maxsz) 6301da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6319b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6321da177e4SLinus Torvalds encode_putfh_maxsz + \ 6331da177e4SLinus Torvalds encode_symlink_maxsz + \ 6341da177e4SLinus Torvalds encode_getattr_maxsz + \ 6351da177e4SLinus Torvalds encode_getfh_maxsz) 6361da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6381da177e4SLinus Torvalds decode_putfh_maxsz + \ 6391da177e4SLinus Torvalds decode_symlink_maxsz + \ 6401da177e4SLinus Torvalds decode_getattr_maxsz + \ 6411da177e4SLinus Torvalds decode_getfh_maxsz) 6421da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6439b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6441da177e4SLinus Torvalds encode_putfh_maxsz + \ 64556ae19f3STrond Myklebust encode_savefh_maxsz + \ 6461da177e4SLinus Torvalds encode_create_maxsz + \ 64756ae19f3STrond Myklebust encode_getfh_maxsz + \ 6481da177e4SLinus Torvalds encode_getattr_maxsz + \ 64956ae19f3STrond Myklebust encode_restorefh_maxsz + \ 65056ae19f3STrond Myklebust encode_getattr_maxsz) 6511da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6529b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6531da177e4SLinus Torvalds decode_putfh_maxsz + \ 65456ae19f3STrond Myklebust decode_savefh_maxsz + \ 6551da177e4SLinus Torvalds decode_create_maxsz + \ 65656ae19f3STrond Myklebust decode_getfh_maxsz + \ 6571da177e4SLinus Torvalds decode_getattr_maxsz + \ 65856ae19f3STrond Myklebust decode_restorefh_maxsz + \ 65956ae19f3STrond Myklebust decode_getattr_maxsz) 6601da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6619b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6621da177e4SLinus Torvalds encode_putfh_maxsz + \ 6631da177e4SLinus Torvalds encode_getattr_maxsz) 6641da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6659b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6661da177e4SLinus Torvalds decode_putfh_maxsz + \ 6671da177e4SLinus Torvalds decode_getattr_maxsz) 6681da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6699b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6701da177e4SLinus Torvalds encode_putfh_maxsz + \ 6719104a55dSTrond Myklebust encode_statfs_maxsz) 6721da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6739b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6741da177e4SLinus Torvalds decode_putfh_maxsz + \ 6759104a55dSTrond Myklebust decode_statfs_maxsz) 6761da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6779b7b9fccSAndy Adamson encode_sequence_maxsz + \ 678ab91f264STrond Myklebust encode_putfh_maxsz + \ 6791da177e4SLinus Torvalds encode_getattr_maxsz) 6801da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6819b7b9fccSAndy Adamson decode_sequence_maxsz + \ 682ab91f264STrond Myklebust decode_putfh_maxsz + \ 6831da177e4SLinus Torvalds decode_getattr_maxsz) 6841da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6859b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6861da177e4SLinus Torvalds encode_putfh_maxsz + \ 687fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 688fa178f29STrond Myklebust encode_getattr_maxsz) 6891da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6909b7b9fccSAndy Adamson decode_sequence_maxsz + \ 691fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 692fa178f29STrond Myklebust decode_getattr_maxsz) 693029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 6949b7b9fccSAndy Adamson encode_sequence_maxsz + \ 695029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 6969104a55dSTrond Myklebust encode_getacl_maxsz) 697029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 6989b7b9fccSAndy Adamson decode_sequence_maxsz + \ 699029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7009104a55dSTrond Myklebust decode_getacl_maxsz) 70123ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7029b7b9fccSAndy Adamson encode_sequence_maxsz + \ 70323ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7049104a55dSTrond Myklebust encode_setacl_maxsz) 70523ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7069b7b9fccSAndy Adamson decode_sequence_maxsz + \ 70723ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7089104a55dSTrond Myklebust decode_setacl_maxsz) 709683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 710683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7119b7b9fccSAndy Adamson encode_sequence_maxsz + \ 712683b57b4STrond Myklebust encode_putfh_maxsz + \ 713e6889620STrond Myklebust encode_lookup_maxsz + \ 714e6889620STrond Myklebust encode_fs_locations_maxsz) 715683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 716683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7179b7b9fccSAndy Adamson decode_sequence_maxsz + \ 718683b57b4STrond Myklebust decode_putfh_maxsz + \ 719e6889620STrond Myklebust decode_lookup_maxsz + \ 720e6889620STrond Myklebust decode_fs_locations_maxsz) 7215a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7225a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7235a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7245a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7255a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7265a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7275a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7285a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 72999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 73099fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 73199fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 73299fe60d0SBenny Halevy encode_exchange_id_maxsz) 73399fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 73499fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 73599fe60d0SBenny Halevy decode_exchange_id_maxsz) 736fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 737fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 738fc931582SAndy Adamson encode_create_session_maxsz) 739fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 740fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 741fc931582SAndy Adamson decode_create_session_maxsz) 7420f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7430f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7440f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7450f3e66c6SAndy Adamson decode_destroy_session_maxsz) 746fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 747fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 748fc01cea9SAndy Adamson encode_sequence_maxsz) 749fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 750fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 751fc01cea9SAndy Adamson decode_sequence_maxsz) 7522050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7532050f0ccSAndy Adamson encode_sequence_maxsz + \ 7542050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7552050f0ccSAndy Adamson encode_fsinfo_maxsz) 7562050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7572050f0ccSAndy Adamson decode_sequence_maxsz + \ 7582050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7592050f0ccSAndy Adamson decode_fsinfo_maxsz) 76018019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 76118019753SRicardo Labiaga encode_sequence_maxsz + \ 76218019753SRicardo Labiaga encode_reclaim_complete_maxsz) 76318019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 76418019753SRicardo Labiaga decode_sequence_maxsz + \ 76518019753SRicardo Labiaga decode_reclaim_complete_maxsz) 7667f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 7677f11d8d3SAndy Adamson encode_sequence_maxsz + \ 7687f11d8d3SAndy Adamson encode_putfh_maxsz + \ 7697f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 7707f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 7717f11d8d3SAndy Adamson decode_sequence_maxsz + \ 7727f11d8d3SAndy Adamson decode_putfh_maxsz + \ 7737f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 774b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 775b1f69b75SAndy Adamson encode_sequence_maxsz +\ 776b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 777b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 778b1f69b75SAndy Adamson decode_sequence_maxsz + \ 779b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 780b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 781b1f69b75SAndy Adamson encode_sequence_maxsz + \ 782b1f69b75SAndy Adamson encode_putfh_maxsz + \ 783b1f69b75SAndy Adamson encode_layoutget_maxsz) 784b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 785b1f69b75SAndy Adamson decode_sequence_maxsz + \ 786b1f69b75SAndy Adamson decode_putfh_maxsz + \ 787b1f69b75SAndy Adamson decode_layoutget_maxsz) 788863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 789863a3c6cSAndy Adamson encode_sequence_maxsz +\ 790863a3c6cSAndy Adamson encode_putfh_maxsz + \ 791863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 792863a3c6cSAndy Adamson encode_getattr_maxsz) 793863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 794863a3c6cSAndy Adamson decode_sequence_maxsz + \ 795863a3c6cSAndy Adamson decode_putfh_maxsz + \ 796863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 797863a3c6cSAndy Adamson decode_getattr_maxsz) 798cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 799cbe82603SBenny Halevy encode_sequence_maxsz + \ 800cbe82603SBenny Halevy encode_putfh_maxsz + \ 801cbe82603SBenny Halevy encode_layoutreturn_maxsz) 802cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 803cbe82603SBenny Halevy decode_sequence_maxsz + \ 804cbe82603SBenny Halevy decode_putfh_maxsz + \ 805cbe82603SBenny Halevy decode_layoutreturn_maxsz) 806fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 807fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 808fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 809fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 810fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 811fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 812fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 813fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8147d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8157d974794SBryan Schumaker encode_sequence_maxsz + \ 8167d974794SBryan Schumaker encode_test_stateid_maxsz) 8177d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8187d974794SBryan Schumaker decode_sequence_maxsz + \ 8197d974794SBryan Schumaker decode_test_stateid_maxsz) 8209aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8219aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8229aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8239aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8249aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8259aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8262449ea2eSAlexandros Batsakis 8272449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8282449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8292449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8302449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8312449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8322449ea2eSAlexandros Batsakis XDR_UNIT); 8332449ea2eSAlexandros Batsakis 8342449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8352449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8362449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8372449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8382449ea2eSAlexandros Batsakis XDR_UNIT); 83999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8401da177e4SLinus Torvalds 841bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 842bca79478STrond Myklebust [NF4BAD] = 0, 843bca79478STrond Myklebust [NF4REG] = S_IFREG, 844bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 845bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 846bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 847bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 848bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 849bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 850bca79478STrond Myklebust [NF4ATTRDIR] = 0, 851bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8521da177e4SLinus Torvalds }; 8531da177e4SLinus Torvalds 8541da177e4SLinus Torvalds struct compound_hdr { 8551da177e4SLinus Torvalds int32_t status; 8561da177e4SLinus Torvalds uint32_t nops; 857d017931cSAndy Adamson __be32 * nops_p; 8581da177e4SLinus Torvalds uint32_t taglen; 8591da177e4SLinus Torvalds char * tag; 8600c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 86166cc0429SBenny Halevy u32 minorversion; 8621da177e4SLinus Torvalds }; 8631da177e4SLinus Torvalds 86413c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 86513c65ce9SBenny Halevy { 86613c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 86713c65ce9SBenny Halevy BUG_ON(!p); 86813c65ce9SBenny Halevy return p; 86913c65ce9SBenny Halevy } 8701da177e4SLinus Torvalds 8711da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 8721da177e4SLinus Torvalds { 8738687b63aSAl Viro __be32 *p; 8741da177e4SLinus Torvalds 8751da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 8761da177e4SLinus Torvalds BUG_ON(p == NULL); 8771da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 8781da177e4SLinus Torvalds } 8791da177e4SLinus Torvalds 8800c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 8810c4e8c18SBenny Halevy struct rpc_rqst *req, 8820c4e8c18SBenny Halevy struct compound_hdr *hdr) 8831da177e4SLinus Torvalds { 8848687b63aSAl Viro __be32 *p; 885a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 8860c4e8c18SBenny Halevy 8870c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 8880c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 8890c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 8900c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 8911da177e4SLinus Torvalds 8921da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 8931da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 894811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 895811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 896e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 897d017931cSAndy Adamson hdr->nops_p = p; 89834558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 899d017931cSAndy Adamson } 900d017931cSAndy Adamson 901d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 902d017931cSAndy Adamson { 903fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 904d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9051da177e4SLinus Torvalds } 9061da177e4SLinus Torvalds 9071da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9081da177e4SLinus Torvalds { 9098687b63aSAl Viro __be32 *p; 9101da177e4SLinus Torvalds 9111da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 9121da177e4SLinus Torvalds BUG_ON(p == NULL); 9131da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 9141da177e4SLinus Torvalds } 9151da177e4SLinus Torvalds 916cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9171da177e4SLinus Torvalds { 9181da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9191da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9201da177e4SLinus Torvalds int owner_namelen = 0; 9211da177e4SLinus Torvalds int owner_grouplen = 0; 9228687b63aSAl Viro __be32 *p; 9238687b63aSAl Viro __be32 *q; 9241da177e4SLinus Torvalds int len; 9251da177e4SLinus Torvalds uint32_t bmval0 = 0; 9261da177e4SLinus Torvalds uint32_t bmval1 = 0; 9271da177e4SLinus Torvalds 9281da177e4SLinus Torvalds /* 9291da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9301da177e4SLinus Torvalds * In the worst-case, this would be 9311da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9321da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 93323ec6965SJ. Bruce Fields * such as owner/group. 9341da177e4SLinus Torvalds */ 9351da177e4SLinus Torvalds len = 16; 9361da177e4SLinus Torvalds 9371da177e4SLinus Torvalds /* Sigh */ 9381da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 9391da177e4SLinus Torvalds len += 8; 9401da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 9411da177e4SLinus Torvalds len += 4; 9421da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 943e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 9441da177e4SLinus Torvalds if (owner_namelen < 0) { 945fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 9461da177e4SLinus Torvalds iap->ia_uid); 9471da177e4SLinus Torvalds /* XXX */ 9481da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 9491da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 9501da177e4SLinus Torvalds /* goto out; */ 9511da177e4SLinus Torvalds } 9521da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 9531da177e4SLinus Torvalds } 9541da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 955e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 9561da177e4SLinus Torvalds if (owner_grouplen < 0) { 957fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 9581da177e4SLinus Torvalds iap->ia_gid); 9591da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 9601da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 9611da177e4SLinus Torvalds /* goto out; */ 9621da177e4SLinus Torvalds } 9631da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 9641da177e4SLinus Torvalds } 9651da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 9661da177e4SLinus Torvalds len += 16; 9671da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 9681da177e4SLinus Torvalds len += 4; 9691da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 9701da177e4SLinus Torvalds len += 16; 9711da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 9721da177e4SLinus Torvalds len += 4; 97313c65ce9SBenny Halevy p = reserve_space(xdr, len); 9741da177e4SLinus Torvalds 9751da177e4SLinus Torvalds /* 9761da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 9771da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 9781da177e4SLinus Torvalds */ 979e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 9801da177e4SLinus Torvalds q = p; 9811da177e4SLinus Torvalds p += 3; 9821da177e4SLinus Torvalds 9831da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 9841da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 985b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 9861da177e4SLinus Torvalds } 9871da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 9881da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 989e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 9901da177e4SLinus Torvalds } 9911da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 9921da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 993811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 9941da177e4SLinus Torvalds } 9951da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 9961da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 997811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 9981da177e4SLinus Torvalds } 9991da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10001da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1001e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1002e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1003d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 1004d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10051da177e4SLinus Torvalds } 10061da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10071da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1008e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10091da177e4SLinus Torvalds } 10101da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10111da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1012e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1013e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1014e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 1015e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10161da177e4SLinus Torvalds } 10171da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10181da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1019e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10201da177e4SLinus Torvalds } 10211da177e4SLinus Torvalds 10221da177e4SLinus Torvalds /* 10231da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10241da177e4SLinus Torvalds */ 10251da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1026fe82a183SChuck Lever printk(KERN_ERR "nfs: Attr length error, %u != %Zu\n", 10271da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10281da177e4SLinus Torvalds BUG(); 10291da177e4SLinus Torvalds } 10301da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10311da177e4SLinus Torvalds *q++ = htonl(bmval0); 10321da177e4SLinus Torvalds *q++ = htonl(bmval1); 103334558513SBenny Halevy *q = htonl(len); 10341da177e4SLinus Torvalds 10351da177e4SLinus Torvalds /* out: */ 10361da177e4SLinus Torvalds } 10371da177e4SLinus Torvalds 1038cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10391da177e4SLinus Torvalds { 10408687b63aSAl Viro __be32 *p; 10411da177e4SLinus Torvalds 104213c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1043e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 104434558513SBenny Halevy *p = cpu_to_be32(access); 1045d017931cSAndy Adamson hdr->nops++; 1046dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 10471da177e4SLinus Torvalds } 10481da177e4SLinus Torvalds 1049cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 10501da177e4SLinus Torvalds { 10518687b63aSAl Viro __be32 *p; 10521da177e4SLinus Torvalds 105313c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 1054e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 1055e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 105634558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 1057d017931cSAndy Adamson hdr->nops++; 1058dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 10591da177e4SLinus Torvalds } 10601da177e4SLinus Torvalds 1061cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 10621da177e4SLinus Torvalds { 10638687b63aSAl Viro __be32 *p; 10641da177e4SLinus Torvalds 106513c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1066e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 1067b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 106834558513SBenny Halevy *p = cpu_to_be32(args->count); 1069d017931cSAndy Adamson hdr->nops++; 1070dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 10711da177e4SLinus Torvalds } 10721da177e4SLinus Torvalds 1073cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 10741da177e4SLinus Torvalds { 10758687b63aSAl Viro __be32 *p; 10761da177e4SLinus Torvalds 107713c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1078e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 107934558513SBenny Halevy *p = cpu_to_be32(create->ftype); 10801da177e4SLinus Torvalds 10811da177e4SLinus Torvalds switch (create->ftype) { 10821da177e4SLinus Torvalds case NF4LNK: 108313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 108434558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 108594a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 10861da177e4SLinus Torvalds break; 10871da177e4SLinus Torvalds 10881da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 108913c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1090e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 109134558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 10921da177e4SLinus Torvalds break; 10931da177e4SLinus Torvalds 10941da177e4SLinus Torvalds default: 10951da177e4SLinus Torvalds break; 10961da177e4SLinus Torvalds } 10971da177e4SLinus Torvalds 1098811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1099d017931cSAndy Adamson hdr->nops++; 1100dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 11011da177e4SLinus Torvalds 1102cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11031da177e4SLinus Torvalds } 11041da177e4SLinus Torvalds 1105cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11061da177e4SLinus Torvalds { 11078687b63aSAl Viro __be32 *p; 11081da177e4SLinus Torvalds 110913c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1110e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1111e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 111234558513SBenny Halevy *p = cpu_to_be32(bitmap); 1113d017931cSAndy Adamson hdr->nops++; 1114dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 11151da177e4SLinus Torvalds } 11161da177e4SLinus Torvalds 1117cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11181da177e4SLinus Torvalds { 11198687b63aSAl Viro __be32 *p; 11201da177e4SLinus Torvalds 112113c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1122e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1123e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1124e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 112534558513SBenny Halevy *p = cpu_to_be32(bm1); 1126d017931cSAndy Adamson hdr->nops++; 1127dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 11281da177e4SLinus Torvalds } 11291da177e4SLinus Torvalds 1130dae100c2SFred Isaman static void 1131dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1132dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1133dae100c2SFred Isaman struct compound_hdr *hdr) 1134dae100c2SFred Isaman { 1135dae100c2SFred Isaman __be32 *p; 1136dae100c2SFred Isaman 1137dae100c2SFred Isaman p = reserve_space(xdr, 4); 1138dae100c2SFred Isaman *p = cpu_to_be32(OP_GETATTR); 1139dae100c2SFred Isaman if (bm2) { 1140dae100c2SFred Isaman p = reserve_space(xdr, 16); 1141dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1142dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1143dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1144dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1145dae100c2SFred Isaman } else if (bm1) { 1146dae100c2SFred Isaman p = reserve_space(xdr, 12); 1147dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1148dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1149dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1150dae100c2SFred Isaman } else { 1151dae100c2SFred Isaman p = reserve_space(xdr, 8); 1152dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1153dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1154dae100c2SFred Isaman } 1155dae100c2SFred Isaman hdr->nops++; 1156dae100c2SFred Isaman hdr->replen += decode_getattr_maxsz; 1157dae100c2SFred Isaman } 1158dae100c2SFred Isaman 1159cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11601da177e4SLinus Torvalds { 1161cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1162d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11631da177e4SLinus Torvalds } 11641da177e4SLinus Torvalds 1165cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11661da177e4SLinus Torvalds { 1167dae100c2SFred Isaman encode_getattr_three(xdr, 1168dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1169dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1170dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1171dae100c2SFred Isaman hdr); 11721da177e4SLinus Torvalds } 11731da177e4SLinus Torvalds 1174cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1175830b8e33SManoj Naik { 1176cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1177cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1178830b8e33SManoj Naik } 1179830b8e33SManoj Naik 1180cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 11811da177e4SLinus Torvalds { 11828687b63aSAl Viro __be32 *p; 11831da177e4SLinus Torvalds 118413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 118534558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1186d017931cSAndy Adamson hdr->nops++; 1187dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 11881da177e4SLinus Torvalds } 11891da177e4SLinus Torvalds 1190cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 11911da177e4SLinus Torvalds { 11928687b63aSAl Viro __be32 *p; 11931da177e4SLinus Torvalds 119413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1195e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1196811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1197d017931cSAndy Adamson hdr->nops++; 1198dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 11991da177e4SLinus Torvalds } 12001da177e4SLinus Torvalds 1201911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1202911d1aafSTrond Myklebust { 1203911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1204911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1205911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1206911d1aafSTrond Myklebust } 1207911d1aafSTrond Myklebust 1208911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1209911d1aafSTrond Myklebust { 1210911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1211911d1aafSTrond Myklebust return ~(uint64_t)0; 1212911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1213911d1aafSTrond Myklebust } 1214911d1aafSTrond Myklebust 1215daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1216daccbdedSTrond Myklebust { 1217daccbdedSTrond Myklebust __be32 *p; 1218daccbdedSTrond Myklebust 1219d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1220daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1221d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1222daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1223d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1224daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1225daccbdedSTrond Myklebust } 1226daccbdedSTrond Myklebust 12271da177e4SLinus Torvalds /* 12281da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12291da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12301da177e4SLinus Torvalds */ 1231cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12321da177e4SLinus Torvalds { 12338687b63aSAl Viro __be32 *p; 12341da177e4SLinus Torvalds 123513c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1236e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1237e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1238e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1239b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1240b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 124134558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1242911d1aafSTrond Myklebust if (args->new_lock_owner){ 1243daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1244e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 124593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1246e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1247daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12481da177e4SLinus Torvalds } 12491da177e4SLinus Torvalds else { 125013c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 125193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 125234558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 12531da177e4SLinus Torvalds } 1254d017931cSAndy Adamson hdr->nops++; 1255dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 12561da177e4SLinus Torvalds } 12571da177e4SLinus Torvalds 1258cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12591da177e4SLinus Torvalds { 12608687b63aSAl Viro __be32 *p; 12611da177e4SLinus Torvalds 1262daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1263e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1264e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1265b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1266b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1267daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1268d017931cSAndy Adamson hdr->nops++; 1269dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 12701da177e4SLinus Torvalds } 12711da177e4SLinus Torvalds 1272cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 12731da177e4SLinus Torvalds { 12748687b63aSAl Viro __be32 *p; 12751da177e4SLinus Torvalds 127613c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1277e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1278e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1279e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 128093f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1281b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 128234558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1283d017931cSAndy Adamson hdr->nops++; 1284dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 12851da177e4SLinus Torvalds } 12861da177e4SLinus Torvalds 1287d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1288d3c7b7ccSTrond Myklebust { 1289d3c7b7ccSTrond Myklebust __be32 *p; 1290d3c7b7ccSTrond Myklebust 1291d3c7b7ccSTrond Myklebust p = reserve_space(xdr, 4); 1292d3c7b7ccSTrond Myklebust *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); 1293d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1294d3c7b7ccSTrond Myklebust hdr->nops++; 1295d3c7b7ccSTrond Myklebust hdr->replen += decode_release_lockowner_maxsz; 1296d3c7b7ccSTrond Myklebust } 1297d3c7b7ccSTrond Myklebust 1298cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12991da177e4SLinus Torvalds { 13001da177e4SLinus Torvalds int len = name->len; 13018687b63aSAl Viro __be32 *p; 13021da177e4SLinus Torvalds 130313c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1304e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1305811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1306d017931cSAndy Adamson hdr->nops++; 1307dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 13081da177e4SLinus Torvalds } 13091da177e4SLinus Torvalds 1310dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13111da177e4SLinus Torvalds { 13128687b63aSAl Viro __be32 *p; 13131da177e4SLinus Torvalds 131413c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1315dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13161da177e4SLinus Torvalds case FMODE_READ: 1317e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13181da177e4SLinus Torvalds break; 13191da177e4SLinus Torvalds case FMODE_WRITE: 1320e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13211da177e4SLinus Torvalds break; 13221da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1323e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13241da177e4SLinus Torvalds break; 13251da177e4SLinus Torvalds default: 1326e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13271da177e4SLinus Torvalds } 132834558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13291da177e4SLinus Torvalds } 13301da177e4SLinus Torvalds 13311da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13321da177e4SLinus Torvalds { 13338687b63aSAl Viro __be32 *p; 13341da177e4SLinus Torvalds /* 13351da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13361da177e4SLinus Torvalds * owner 4 = 32 13371da177e4SLinus Torvalds */ 133813c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1339e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 134034558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1341dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1342d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1343b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1344d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 134593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1346d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 134734558513SBenny Halevy xdr_encode_hyper(p, arg->id); 13481da177e4SLinus Torvalds } 13491da177e4SLinus Torvalds 13501da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13511da177e4SLinus Torvalds { 13528687b63aSAl Viro __be32 *p; 13534882ef72SAlexandros Batsakis struct nfs_client *clp; 13541da177e4SLinus Torvalds 135513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13561da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 13571da177e4SLinus Torvalds case 0: 135834558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13591da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13601da177e4SLinus Torvalds break; 13611da177e4SLinus Torvalds default: 13624882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1363a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 13644882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 13654882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13664882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 13674882ef72SAlexandros Batsakis } else { 13684882ef72SAlexandros Batsakis struct iattr dummy; 13694882ef72SAlexandros Batsakis 13704882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13714882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13724882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13734882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13744882ef72SAlexandros Batsakis } 13754882ef72SAlexandros Batsakis } else { 137634558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 13771da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 13781da177e4SLinus Torvalds } 13791da177e4SLinus Torvalds } 13804882ef72SAlexandros Batsakis } 13811da177e4SLinus Torvalds 13821da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13831da177e4SLinus Torvalds { 13848687b63aSAl Viro __be32 *p; 13851da177e4SLinus Torvalds 138613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13871da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 13881da177e4SLinus Torvalds case 0: 138934558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 13901da177e4SLinus Torvalds break; 13911da177e4SLinus Torvalds default: 13921da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 139334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 13941da177e4SLinus Torvalds encode_createmode(xdr, arg); 13951da177e4SLinus Torvalds } 13961da177e4SLinus Torvalds } 13971da177e4SLinus Torvalds 1398bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 13991da177e4SLinus Torvalds { 14008687b63aSAl Viro __be32 *p; 14011da177e4SLinus Torvalds 140213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14031da177e4SLinus Torvalds switch (delegation_type) { 14041da177e4SLinus Torvalds case 0: 140534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14061da177e4SLinus Torvalds break; 14071da177e4SLinus Torvalds case FMODE_READ: 140834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14091da177e4SLinus Torvalds break; 14101da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 141134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14121da177e4SLinus Torvalds break; 14131da177e4SLinus Torvalds default: 14141da177e4SLinus Torvalds BUG(); 14151da177e4SLinus Torvalds } 14161da177e4SLinus Torvalds } 14171da177e4SLinus Torvalds 14181da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14191da177e4SLinus Torvalds { 14208687b63aSAl Viro __be32 *p; 14211da177e4SLinus Torvalds 142213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 142334558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14241da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14251da177e4SLinus Torvalds } 14261da177e4SLinus Torvalds 1427bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14281da177e4SLinus Torvalds { 14298687b63aSAl Viro __be32 *p; 14301da177e4SLinus Torvalds 143113c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14331da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14341da177e4SLinus Torvalds } 14351da177e4SLinus Torvalds 14361da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14371da177e4SLinus Torvalds { 14388687b63aSAl Viro __be32 *p; 14391da177e4SLinus Torvalds 144013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1441e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 144234558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 14431da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14441da177e4SLinus Torvalds } 14451da177e4SLinus Torvalds 1446cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14471da177e4SLinus Torvalds { 14481da177e4SLinus Torvalds encode_openhdr(xdr, arg); 14491da177e4SLinus Torvalds encode_opentype(xdr, arg); 14501da177e4SLinus Torvalds switch (arg->claim) { 14511da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 14521da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 14531da177e4SLinus Torvalds break; 14541da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 14551da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 14561da177e4SLinus Torvalds break; 14571da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 14581da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 14591da177e4SLinus Torvalds break; 14601da177e4SLinus Torvalds default: 14611da177e4SLinus Torvalds BUG(); 14621da177e4SLinus Torvalds } 1463d017931cSAndy Adamson hdr->nops++; 1464dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 14651da177e4SLinus Torvalds } 14661da177e4SLinus Torvalds 1467cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 14681da177e4SLinus Torvalds { 14698687b63aSAl Viro __be32 *p; 14701da177e4SLinus Torvalds 147113c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1472e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 147393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 147434558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1475d017931cSAndy Adamson hdr->nops++; 1476dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 14771da177e4SLinus Torvalds } 14781da177e4SLinus Torvalds 1479cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 14801da177e4SLinus Torvalds { 14818687b63aSAl Viro __be32 *p; 14821da177e4SLinus Torvalds 148313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1484e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 148593f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 148634558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1487dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1488d017931cSAndy Adamson hdr->nops++; 1489dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 14901da177e4SLinus Torvalds } 14911da177e4SLinus Torvalds 1492cf8cdbe5SAndy Adamson static void 1493d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 14941da177e4SLinus Torvalds { 14951da177e4SLinus Torvalds int len = fh->size; 14968687b63aSAl Viro __be32 *p; 14971da177e4SLinus Torvalds 149813c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1499e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1500811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1501d017931cSAndy Adamson hdr->nops++; 1502dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 15031da177e4SLinus Torvalds } 15041da177e4SLinus Torvalds 1505cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15061da177e4SLinus Torvalds { 15078687b63aSAl Viro __be32 *p; 15081da177e4SLinus Torvalds 150913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 151034558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1511d017931cSAndy Adamson hdr->nops++; 1512dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 15131da177e4SLinus Torvalds } 15141da177e4SLinus Torvalds 151589d1ea65SAndy 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) 15161da177e4SLinus Torvalds { 15171da177e4SLinus Torvalds nfs4_stateid stateid; 15188687b63aSAl Viro __be32 *p; 15191da177e4SLinus Torvalds 152013c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 15211da177e4SLinus Torvalds if (ctx->state != NULL) { 152277041ed9STrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); 152389d1ea65SAndy Adamson if (zero_seqid) 152489d1ea65SAndy Adamson stateid.stateid.seqid = 0; 152534558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 15261da177e4SLinus Torvalds } else 152734558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 15281da177e4SLinus Torvalds } 15291da177e4SLinus Torvalds 1530cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15311da177e4SLinus Torvalds { 15328687b63aSAl Viro __be32 *p; 15331da177e4SLinus Torvalds 153413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 153534558513SBenny Halevy *p = cpu_to_be32(OP_READ); 15361da177e4SLinus Torvalds 153789d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 153889d1ea65SAndy Adamson hdr->minorversion); 15391da177e4SLinus Torvalds 154013c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1541b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 154234558513SBenny Halevy *p = cpu_to_be32(args->count); 1543d017931cSAndy Adamson hdr->nops++; 1544dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 15451da177e4SLinus Torvalds } 15461da177e4SLinus Torvalds 1547cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15481da177e4SLinus Torvalds { 154928331a46STrond Myklebust uint32_t attrs[2] = { 155028331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 155128331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 155228331a46STrond Myklebust }; 15536f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 15548687b63aSAl Viro __be32 *p; 15551da177e4SLinus Torvalds 155682f2e547SBryan Schumaker if (readdir->plus) { 155782f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 155828331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 155982f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 156082f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 156182f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 156282f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 15636f7a35bdSTrond Myklebust dircount >>= 1; 156482f2e547SBryan Schumaker } 156528331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 156628331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 156728331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 15686f7a35bdSTrond Myklebust 15696f7a35bdSTrond Myklebust p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 15706f7a35bdSTrond Myklebust *p++ = cpu_to_be32(OP_READDIR); 15716f7a35bdSTrond Myklebust p = xdr_encode_hyper(p, readdir->cookie); 15726f7a35bdSTrond Myklebust p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 15736f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 15746f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 15756f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 157682f2e547SBryan Schumaker 1577e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 157834558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1579d017931cSAndy Adamson hdr->nops++; 1580dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 158144109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 158244109241SFred Isaman __func__, 1583eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1584eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1585eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1586eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1587eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 15881da177e4SLinus Torvalds } 15891da177e4SLinus Torvalds 1590cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 15911da177e4SLinus Torvalds { 15928687b63aSAl Viro __be32 *p; 15931da177e4SLinus Torvalds 159413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 159534558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1596d017931cSAndy Adamson hdr->nops++; 1597dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 15981da177e4SLinus Torvalds } 15991da177e4SLinus Torvalds 1600cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16011da177e4SLinus Torvalds { 16028687b63aSAl Viro __be32 *p; 16031da177e4SLinus Torvalds 160413c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1605e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1606811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1607d017931cSAndy Adamson hdr->nops++; 1608dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 16091da177e4SLinus Torvalds } 16101da177e4SLinus Torvalds 1611cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16121da177e4SLinus Torvalds { 16138687b63aSAl Viro __be32 *p; 16141da177e4SLinus Torvalds 1615811652bdSBenny Halevy p = reserve_space(xdr, 4); 1616811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1617811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1618811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1619d017931cSAndy Adamson hdr->nops++; 1620dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 16211da177e4SLinus Torvalds } 16221da177e4SLinus Torvalds 1623cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 16241da177e4SLinus Torvalds { 16258687b63aSAl Viro __be32 *p; 16261da177e4SLinus Torvalds 162713c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1628e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 162934558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1630d017931cSAndy Adamson hdr->nops++; 1631dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 16321da177e4SLinus Torvalds } 16331da177e4SLinus Torvalds 1634cf8cdbe5SAndy Adamson static void 1635d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 163656ae19f3STrond Myklebust { 16378687b63aSAl Viro __be32 *p; 163856ae19f3STrond Myklebust 163913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 164034558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1641d017931cSAndy Adamson hdr->nops++; 1642dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 164356ae19f3STrond Myklebust } 164456ae19f3STrond Myklebust 16459f06c719SChuck Lever static void 1646d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 164723ec6965SJ. Bruce Fields { 16488687b63aSAl Viro __be32 *p; 164923ec6965SJ. Bruce Fields 165013c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1651e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 165234558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 165313c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1654e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 165534558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 16569f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 165713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165834558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 165923ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1660d017931cSAndy Adamson hdr->nops++; 1661dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 166223ec6965SJ. Bruce Fields } 166323ec6965SJ. Bruce Fields 1664cf8cdbe5SAndy Adamson static void 1665d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16661da177e4SLinus Torvalds { 16678687b63aSAl Viro __be32 *p; 16681da177e4SLinus Torvalds 166913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 167034558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1671d017931cSAndy Adamson hdr->nops++; 1672dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 16731da177e4SLinus Torvalds } 16741da177e4SLinus Torvalds 1675cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16761da177e4SLinus Torvalds { 16778687b63aSAl Viro __be32 *p; 16781da177e4SLinus Torvalds 167913c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1680e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 168134558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1682d017931cSAndy Adamson hdr->nops++; 1683dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1684cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 16851da177e4SLinus Torvalds } 16861da177e4SLinus Torvalds 1687cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 16881da177e4SLinus Torvalds { 16898687b63aSAl Viro __be32 *p; 16901da177e4SLinus Torvalds 169113c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1692e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 169334558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 16941da177e4SLinus Torvalds 16951da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 169613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 169734558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 16981da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 16991da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 170013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 170134558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1702d017931cSAndy Adamson hdr->nops++; 1703dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 17041da177e4SLinus Torvalds } 17051da177e4SLinus Torvalds 1706bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 17071da177e4SLinus Torvalds { 17088687b63aSAl Viro __be32 *p; 17091da177e4SLinus Torvalds 171013c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1711e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1712bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1713bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1714d017931cSAndy Adamson hdr->nops++; 1715dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 17161da177e4SLinus Torvalds } 17171da177e4SLinus Torvalds 1718cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 17191da177e4SLinus Torvalds { 17208687b63aSAl Viro __be32 *p; 17211da177e4SLinus Torvalds 172213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 172334558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 17241da177e4SLinus Torvalds 172589d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 172689d1ea65SAndy Adamson hdr->minorversion); 17271da177e4SLinus Torvalds 172813c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1729b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1730e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 173134558513SBenny Halevy *p = cpu_to_be32(args->count); 17321da177e4SLinus Torvalds 17331da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1734d017931cSAndy Adamson hdr->nops++; 1735dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 17361da177e4SLinus Torvalds } 17371da177e4SLinus Torvalds 1738cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 17391da177e4SLinus Torvalds { 17408687b63aSAl Viro __be32 *p; 17411da177e4SLinus Torvalds 174213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 17431da177e4SLinus Torvalds 1744e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 174534558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1746d017931cSAndy Adamson hdr->nops++; 1747dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 17481da177e4SLinus Torvalds } 17499b7b9fccSAndy Adamson 17505a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 17515a5ea0d4SBryan Schumaker { 17525a5ea0d4SBryan Schumaker int len = name->len; 17535a5ea0d4SBryan Schumaker __be32 *p; 17545a5ea0d4SBryan Schumaker 17555a5ea0d4SBryan Schumaker p = reserve_space(xdr, 8 + len); 17565a5ea0d4SBryan Schumaker *p++ = cpu_to_be32(OP_SECINFO); 17575a5ea0d4SBryan Schumaker xdr_encode_opaque(p, name->name, len); 17585a5ea0d4SBryan Schumaker hdr->nops++; 17595a5ea0d4SBryan Schumaker hdr->replen += decode_secinfo_maxsz; 17605a5ea0d4SBryan Schumaker } 17615a5ea0d4SBryan Schumaker 176299fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 17639b7b9fccSAndy Adamson /* NFSv4.1 operations */ 176499fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 176599fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 176699fe60d0SBenny Halevy struct compound_hdr *hdr) 176799fe60d0SBenny Halevy { 176899fe60d0SBenny Halevy __be32 *p; 176999fe60d0SBenny Halevy 177013c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1771e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 177234558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 177399fe60d0SBenny Halevy 177499fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 177599fe60d0SBenny Halevy 177613c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1777e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1778e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 177934558513SBenny Halevy *p = cpu_to_be32(0); /* zero length implementation id array */ 178099fe60d0SBenny Halevy hdr->nops++; 178199fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 178299fe60d0SBenny Halevy } 1783fc931582SAndy Adamson 1784fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1785fc931582SAndy Adamson struct nfs41_create_session_args *args, 1786fc931582SAndy Adamson struct compound_hdr *hdr) 1787fc931582SAndy Adamson { 1788fc931582SAndy Adamson __be32 *p; 1789fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1790fc931582SAndy Adamson uint32_t len; 1791fc931582SAndy Adamson struct nfs_client *clp = args->client; 17928e0d46e1SMike Sager u32 max_resp_sz_cached; 17938e0d46e1SMike Sager 17948e0d46e1SMike Sager /* 17958e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 17968e0d46e1SMike Sager * 2 is the verifier. 17978e0d46e1SMike Sager */ 17988e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 17998e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1800fc931582SAndy Adamson 1801fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1802fc931582SAndy Adamson clp->cl_ipaddr); 180342edd698SBenny Halevy 180413c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1805e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1806114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1807e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1808e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1809fc931582SAndy Adamson 1810fc931582SAndy Adamson /* Fore Channel */ 1811c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1812e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1813e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 18148e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1815e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1816e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1817e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1818fc931582SAndy Adamson 1819fc931582SAndy Adamson /* Back Channel */ 1820c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1821e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1822e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1823e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1824e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1825e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1826e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1827fc931582SAndy Adamson 1828e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1829e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1830e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1831fc931582SAndy Adamson 1832fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1833e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1834811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1835e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1836e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 183734558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1838fc931582SAndy Adamson hdr->nops++; 1839fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1840fc931582SAndy Adamson } 18410f3e66c6SAndy Adamson 18420f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18430f3e66c6SAndy Adamson struct nfs4_session *session, 18440f3e66c6SAndy Adamson struct compound_hdr *hdr) 18450f3e66c6SAndy Adamson { 18460f3e66c6SAndy Adamson __be32 *p; 184713c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1848e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 184934558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18500f3e66c6SAndy Adamson hdr->nops++; 18510f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 18520f3e66c6SAndy Adamson } 185318019753SRicardo Labiaga 185418019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 185518019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 185618019753SRicardo Labiaga struct compound_hdr *hdr) 185718019753SRicardo Labiaga { 185818019753SRicardo Labiaga __be32 *p; 185918019753SRicardo Labiaga 186018019753SRicardo Labiaga p = reserve_space(xdr, 8); 186118019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 186218019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 186318019753SRicardo Labiaga hdr->nops++; 186418019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 186518019753SRicardo Labiaga } 186699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 186799fe60d0SBenny Halevy 18689b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 18699b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 18709b7b9fccSAndy Adamson struct compound_hdr *hdr) 18719b7b9fccSAndy Adamson { 18729b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 18739b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1874fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1875fc01cea9SAndy Adamson struct nfs4_slot *slot; 1876fc01cea9SAndy Adamson __be32 *p; 18779b7b9fccSAndy Adamson 18789b7b9fccSAndy Adamson if (!session) 18799b7b9fccSAndy Adamson return; 18809b7b9fccSAndy Adamson 1881fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1882fc01cea9SAndy Adamson 1883fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1884fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1885fc01cea9SAndy Adamson 188613c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1887e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1888fc01cea9SAndy Adamson 1889fc01cea9SAndy Adamson /* 1890fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1891fc01cea9SAndy Adamson */ 1892fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1893fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1894fc01cea9SAndy Adamson __func__, 1895fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1896fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1897fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1898fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1899fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1900fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 190193f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1902e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1903e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1904e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 190534558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 19069b7b9fccSAndy Adamson hdr->nops++; 19079b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 19089b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 19099b7b9fccSAndy Adamson } 19109b7b9fccSAndy Adamson 1911b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1912b1f69b75SAndy Adamson static void 19137f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 19147f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 19157f11d8d3SAndy Adamson struct compound_hdr *hdr) 19167f11d8d3SAndy Adamson { 19177f11d8d3SAndy Adamson __be32 *p; 19187f11d8d3SAndy Adamson nfs4_verifier dummy = { 19197f11d8d3SAndy Adamson .data = "dummmmmy", 19207f11d8d3SAndy Adamson }; 19217f11d8d3SAndy Adamson 19227f11d8d3SAndy Adamson p = reserve_space(xdr, 20); 19237f11d8d3SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICELIST); 19247f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 19257f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 19267f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 19277f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 19287f11d8d3SAndy Adamson hdr->nops++; 19297f11d8d3SAndy Adamson hdr->replen += decode_getdevicelist_maxsz; 19307f11d8d3SAndy Adamson } 19317f11d8d3SAndy Adamson 19327f11d8d3SAndy Adamson static void 1933b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1934b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1935b1f69b75SAndy Adamson struct compound_hdr *hdr) 1936b1f69b75SAndy Adamson { 1937b1f69b75SAndy Adamson __be32 *p; 1938b1f69b75SAndy Adamson 1939b1f69b75SAndy Adamson p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); 1940b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICEINFO); 1941b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1942b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1943b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1944b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1945b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1946b1f69b75SAndy Adamson hdr->nops++; 1947b1f69b75SAndy Adamson hdr->replen += decode_getdeviceinfo_maxsz; 1948b1f69b75SAndy Adamson } 1949b1f69b75SAndy Adamson 1950b1f69b75SAndy Adamson static void 1951b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1952b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1953b1f69b75SAndy Adamson struct compound_hdr *hdr) 1954b1f69b75SAndy Adamson { 1955b1f69b75SAndy Adamson __be32 *p; 1956b1f69b75SAndy Adamson 1957b1f69b75SAndy Adamson p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 1958b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTGET); 1959b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1960b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1961b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1962b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 1963b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 1964b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 1965cf7d63f1SFred Isaman p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 1966b1f69b75SAndy Adamson *p = cpu_to_be32(args->maxcount); 1967b1f69b75SAndy Adamson 1968b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 1969b1f69b75SAndy Adamson __func__, 1970b1f69b75SAndy Adamson args->type, 1971b1f69b75SAndy Adamson args->range.iomode, 1972b1f69b75SAndy Adamson (unsigned long)args->range.offset, 1973b1f69b75SAndy Adamson (unsigned long)args->range.length, 1974b1f69b75SAndy Adamson args->maxcount); 1975b1f69b75SAndy Adamson hdr->nops++; 1976b1f69b75SAndy Adamson hdr->replen += decode_layoutget_maxsz; 1977b1f69b75SAndy Adamson } 1978863a3c6cSAndy Adamson 1979863a3c6cSAndy Adamson static int 1980863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 1981ac7db726SBenny Halevy struct inode *inode, 1982863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 1983863a3c6cSAndy Adamson struct compound_hdr *hdr) 1984863a3c6cSAndy Adamson { 1985863a3c6cSAndy Adamson __be32 *p; 1986863a3c6cSAndy Adamson 1987863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 1988863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 1989863a3c6cSAndy Adamson 1990ac7db726SBenny Halevy p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 1991863a3c6cSAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTCOMMIT); 1992863a3c6cSAndy Adamson /* Only whole file layouts */ 1993863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 19943557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 1995863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* reclaim */ 1996863a3c6cSAndy Adamson p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE); 1997863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 1998863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 1999863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 2000863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 2001ac7db726SBenny Halevy 2002ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 2003ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 2004ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 2005ac7db726SBenny Halevy else { 2006ac7db726SBenny Halevy p = reserve_space(xdr, 4); 2007ac7db726SBenny Halevy *p = cpu_to_be32(0); /* no layout-type payload */ 2008ac7db726SBenny Halevy } 2009863a3c6cSAndy Adamson 2010863a3c6cSAndy Adamson hdr->nops++; 2011863a3c6cSAndy Adamson hdr->replen += decode_layoutcommit_maxsz; 2012863a3c6cSAndy Adamson return 0; 2013863a3c6cSAndy Adamson } 2014cbe82603SBenny Halevy 2015cbe82603SBenny Halevy static void 2016cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2017cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2018cbe82603SBenny Halevy struct compound_hdr *hdr) 2019cbe82603SBenny Halevy { 2020cbe82603SBenny Halevy __be32 *p; 2021cbe82603SBenny Halevy 2022cbe82603SBenny Halevy p = reserve_space(xdr, 20); 2023cbe82603SBenny Halevy *p++ = cpu_to_be32(OP_LAYOUTRETURN); 2024cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2025cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 2026cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 2027cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2028cbe82603SBenny Halevy p = reserve_space(xdr, 16 + NFS4_STATEID_SIZE); 2029cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 2030cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 2031cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2032cbe82603SBenny Halevy xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 2033cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 203404a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 203504a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 203604a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 203704a55549SAndy Adamson } else { 2038cbe82603SBenny Halevy p = reserve_space(xdr, 4); 2039cbe82603SBenny Halevy *p = cpu_to_be32(0); 204004a55549SAndy Adamson } 2041cbe82603SBenny Halevy hdr->nops++; 2042cbe82603SBenny Halevy hdr->replen += decode_layoutreturn_maxsz; 2043cbe82603SBenny Halevy } 2044fca78d6dSBryan Schumaker 2045fca78d6dSBryan Schumaker static int 2046fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2047fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2048fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2049fca78d6dSBryan Schumaker { 2050fca78d6dSBryan Schumaker __be32 *p; 2051fca78d6dSBryan Schumaker p = reserve_space(xdr, 8); 2052fca78d6dSBryan Schumaker *p++ = cpu_to_be32(OP_SECINFO_NO_NAME); 2053fca78d6dSBryan Schumaker *p++ = cpu_to_be32(args->style); 2054fca78d6dSBryan Schumaker hdr->nops++; 2055fca78d6dSBryan Schumaker hdr->replen += decode_secinfo_no_name_maxsz; 2056fca78d6dSBryan Schumaker return 0; 2057fca78d6dSBryan Schumaker } 20587d974794SBryan Schumaker 20597d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20607d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20617d974794SBryan Schumaker struct compound_hdr *hdr) 20627d974794SBryan Schumaker { 20637d974794SBryan Schumaker __be32 *p; 20647d974794SBryan Schumaker 20657d974794SBryan Schumaker p = reserve_space(xdr, 8 + NFS4_STATEID_SIZE); 20667d974794SBryan Schumaker *p++ = cpu_to_be32(OP_TEST_STATEID); 20677d974794SBryan Schumaker *p++ = cpu_to_be32(1); 20687d974794SBryan Schumaker xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 20697d974794SBryan Schumaker hdr->nops++; 20707d974794SBryan Schumaker hdr->replen += decode_test_stateid_maxsz; 20717d974794SBryan Schumaker } 20729aeda35fSBryan Schumaker 20739aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 20749aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 20759aeda35fSBryan Schumaker struct compound_hdr *hdr) 20769aeda35fSBryan Schumaker { 20779aeda35fSBryan Schumaker __be32 *p; 20789aeda35fSBryan Schumaker p = reserve_space(xdr, 4 + NFS4_STATEID_SIZE); 20799aeda35fSBryan Schumaker *p++ = cpu_to_be32(OP_FREE_STATEID); 20809aeda35fSBryan Schumaker xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 20819aeda35fSBryan Schumaker hdr->nops++; 20829aeda35fSBryan Schumaker hdr->replen += decode_free_stateid_maxsz; 20839aeda35fSBryan Schumaker } 2084b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2085b1f69b75SAndy Adamson 20861da177e4SLinus Torvalds /* 20871da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 20881da177e4SLinus Torvalds */ 20891da177e4SLinus Torvalds 209066cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 209166cc0429SBenny Halevy { 209266cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 209366cc0429SBenny Halevy if (args->sa_session) 2094a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 209566cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 209666cc0429SBenny Halevy return 0; 209766cc0429SBenny Halevy } 209866cc0429SBenny Halevy 20991da177e4SLinus Torvalds /* 21001da177e4SLinus Torvalds * Encode an ACCESS request 21011da177e4SLinus Torvalds */ 21029f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 21039f06c719SChuck Lever const struct nfs4_accessargs *args) 21041da177e4SLinus Torvalds { 21051da177e4SLinus Torvalds struct compound_hdr hdr = { 210666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21071da177e4SLinus Torvalds }; 21081da177e4SLinus Torvalds 21099f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21109f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21119f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21129f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 21139f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2114d017931cSAndy Adamson encode_nops(&hdr); 21151da177e4SLinus Torvalds } 21161da177e4SLinus Torvalds 21171da177e4SLinus Torvalds /* 21181da177e4SLinus Torvalds * Encode LOOKUP request 21191da177e4SLinus Torvalds */ 21209f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 21219f06c719SChuck Lever const struct nfs4_lookup_arg *args) 21221da177e4SLinus Torvalds { 21231da177e4SLinus Torvalds struct compound_hdr hdr = { 212466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21251da177e4SLinus Torvalds }; 21261da177e4SLinus Torvalds 21279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21289f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21299f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21309f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21319f06c719SChuck Lever encode_getfh(xdr, &hdr); 21329f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2133d017931cSAndy Adamson encode_nops(&hdr); 21341da177e4SLinus Torvalds } 21351da177e4SLinus Torvalds 21361da177e4SLinus Torvalds /* 21371da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21381da177e4SLinus Torvalds */ 21399f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21409f06c719SChuck Lever struct xdr_stream *xdr, 21419f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 21421da177e4SLinus Torvalds { 21431da177e4SLinus Torvalds struct compound_hdr hdr = { 214466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21451da177e4SLinus Torvalds }; 21461da177e4SLinus Torvalds 21479f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21489f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21499f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21509f06c719SChuck Lever encode_getfh(xdr, &hdr); 21519f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2152d017931cSAndy Adamson encode_nops(&hdr); 21531da177e4SLinus Torvalds } 21541da177e4SLinus Torvalds 21551da177e4SLinus Torvalds /* 21561da177e4SLinus Torvalds * Encode REMOVE request 21571da177e4SLinus Torvalds */ 21589f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 21599f06c719SChuck Lever const struct nfs_removeargs *args) 21601da177e4SLinus Torvalds { 21611da177e4SLinus Torvalds struct compound_hdr hdr = { 216266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21631da177e4SLinus Torvalds }; 21641da177e4SLinus Torvalds 21659f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21669f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21679f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21689f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 21699f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2170d017931cSAndy Adamson encode_nops(&hdr); 21711da177e4SLinus Torvalds } 21721da177e4SLinus Torvalds 21731da177e4SLinus Torvalds /* 21741da177e4SLinus Torvalds * Encode RENAME request 21751da177e4SLinus Torvalds */ 21769f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 21779f06c719SChuck Lever const struct nfs_renameargs *args) 21781da177e4SLinus Torvalds { 21791da177e4SLinus Torvalds struct compound_hdr hdr = { 218066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21811da177e4SLinus Torvalds }; 21821da177e4SLinus Torvalds 21839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21859f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 21869f06c719SChuck Lever encode_savefh(xdr, &hdr); 21879f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 21889f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 21899f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 21909f06c719SChuck Lever encode_restorefh(xdr, &hdr); 21919f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2192d017931cSAndy Adamson encode_nops(&hdr); 21931da177e4SLinus Torvalds } 21941da177e4SLinus Torvalds 21951da177e4SLinus Torvalds /* 21961da177e4SLinus Torvalds * Encode LINK request 21971da177e4SLinus Torvalds */ 21989f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 21999f06c719SChuck Lever const struct nfs4_link_arg *args) 22001da177e4SLinus Torvalds { 22011da177e4SLinus Torvalds struct compound_hdr hdr = { 220266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22031da177e4SLinus Torvalds }; 22041da177e4SLinus Torvalds 22059f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22069f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22079f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22089f06c719SChuck Lever encode_savefh(xdr, &hdr); 22099f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22109f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 22119f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22129f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22139f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2214d017931cSAndy Adamson encode_nops(&hdr); 22151da177e4SLinus Torvalds } 22161da177e4SLinus Torvalds 22171da177e4SLinus Torvalds /* 22181da177e4SLinus Torvalds * Encode CREATE request 22191da177e4SLinus Torvalds */ 22209f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 22219f06c719SChuck Lever const struct nfs4_create_arg *args) 22221da177e4SLinus Torvalds { 22231da177e4SLinus Torvalds struct compound_hdr hdr = { 222466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22251da177e4SLinus Torvalds }; 22261da177e4SLinus Torvalds 22279f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22289f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22299f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22309f06c719SChuck Lever encode_savefh(xdr, &hdr); 22319f06c719SChuck Lever encode_create(xdr, args, &hdr); 22329f06c719SChuck Lever encode_getfh(xdr, &hdr); 22339f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22349f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22359f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2236d017931cSAndy Adamson encode_nops(&hdr); 22371da177e4SLinus Torvalds } 22381da177e4SLinus Torvalds 22391da177e4SLinus Torvalds /* 22401da177e4SLinus Torvalds * Encode SYMLINK request 22411da177e4SLinus Torvalds */ 22429f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22439f06c719SChuck Lever const struct nfs4_create_arg *args) 22441da177e4SLinus Torvalds { 22459f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22461da177e4SLinus Torvalds } 22471da177e4SLinus Torvalds 22481da177e4SLinus Torvalds /* 22491da177e4SLinus Torvalds * Encode GETATTR request 22501da177e4SLinus Torvalds */ 22519f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22529f06c719SChuck Lever const struct nfs4_getattr_arg *args) 22531da177e4SLinus Torvalds { 22541da177e4SLinus Torvalds struct compound_hdr hdr = { 225566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22561da177e4SLinus Torvalds }; 22571da177e4SLinus Torvalds 22589f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22599f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22609f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22619f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2262d017931cSAndy Adamson encode_nops(&hdr); 22631da177e4SLinus Torvalds } 22641da177e4SLinus Torvalds 22651da177e4SLinus Torvalds /* 22661da177e4SLinus Torvalds * Encode a CLOSE request 22671da177e4SLinus Torvalds */ 22689f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 22699f06c719SChuck Lever struct nfs_closeargs *args) 22701da177e4SLinus Torvalds { 22711da177e4SLinus Torvalds struct compound_hdr hdr = { 227266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22731da177e4SLinus Torvalds }; 22741da177e4SLinus Torvalds 22759f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22769f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22779f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22789f06c719SChuck Lever encode_close(xdr, args, &hdr); 22799f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2280d017931cSAndy Adamson encode_nops(&hdr); 22811da177e4SLinus Torvalds } 22821da177e4SLinus Torvalds 22831da177e4SLinus Torvalds /* 22841da177e4SLinus Torvalds * Encode an OPEN request 22851da177e4SLinus Torvalds */ 22869f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 22879f06c719SChuck Lever struct nfs_openargs *args) 22881da177e4SLinus Torvalds { 22891da177e4SLinus Torvalds struct compound_hdr hdr = { 229066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22911da177e4SLinus Torvalds }; 22921da177e4SLinus Torvalds 22939f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22949f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22959f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22969f06c719SChuck Lever encode_savefh(xdr, &hdr); 22979f06c719SChuck Lever encode_open(xdr, args, &hdr); 22989f06c719SChuck Lever encode_getfh(xdr, &hdr); 22999f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 23009f06c719SChuck Lever encode_restorefh(xdr, &hdr); 23016926afd1STrond Myklebust encode_getfattr(xdr, args->dir_bitmask, &hdr); 2302d017931cSAndy Adamson encode_nops(&hdr); 23031da177e4SLinus Torvalds } 23041da177e4SLinus Torvalds 23051da177e4SLinus Torvalds /* 23061da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 23071da177e4SLinus Torvalds */ 23089f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 23099f06c719SChuck Lever struct xdr_stream *xdr, 23109f06c719SChuck Lever struct nfs_open_confirmargs *args) 23111da177e4SLinus Torvalds { 23121da177e4SLinus Torvalds struct compound_hdr hdr = { 2313d017931cSAndy Adamson .nops = 0, 23141da177e4SLinus Torvalds }; 23151da177e4SLinus Torvalds 23169f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23179f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23189f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2319d017931cSAndy Adamson encode_nops(&hdr); 23201da177e4SLinus Torvalds } 23211da177e4SLinus Torvalds 23221da177e4SLinus Torvalds /* 23231da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 23241da177e4SLinus Torvalds */ 23259f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 23269f06c719SChuck Lever struct xdr_stream *xdr, 23279f06c719SChuck Lever struct nfs_openargs *args) 23281da177e4SLinus Torvalds { 23291da177e4SLinus Torvalds struct compound_hdr hdr = { 233066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23311da177e4SLinus Torvalds }; 23321da177e4SLinus Torvalds 23339f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23349f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23359f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23369f06c719SChuck Lever encode_open(xdr, args, &hdr); 23379f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2338d017931cSAndy Adamson encode_nops(&hdr); 23391da177e4SLinus Torvalds } 23401da177e4SLinus Torvalds 23411da177e4SLinus Torvalds /* 23421da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23431da177e4SLinus Torvalds */ 23449f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23459f06c719SChuck Lever struct xdr_stream *xdr, 23469f06c719SChuck Lever struct nfs_closeargs *args) 23471da177e4SLinus Torvalds { 23481da177e4SLinus Torvalds struct compound_hdr hdr = { 234966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23501da177e4SLinus Torvalds }; 23511da177e4SLinus Torvalds 23529f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23539f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23549f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23559f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 23569f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2357d017931cSAndy Adamson encode_nops(&hdr); 23581da177e4SLinus Torvalds } 23591da177e4SLinus Torvalds 23601da177e4SLinus Torvalds /* 23611da177e4SLinus Torvalds * Encode a LOCK request 23621da177e4SLinus Torvalds */ 23639f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 23649f06c719SChuck Lever struct nfs_lock_args *args) 23651da177e4SLinus Torvalds { 23661da177e4SLinus Torvalds struct compound_hdr hdr = { 236766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23681da177e4SLinus Torvalds }; 23691da177e4SLinus Torvalds 23709f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23719f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23729f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23739f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2374d017931cSAndy Adamson encode_nops(&hdr); 23751da177e4SLinus Torvalds } 23761da177e4SLinus Torvalds 23771da177e4SLinus Torvalds /* 23781da177e4SLinus Torvalds * Encode a LOCKT request 23791da177e4SLinus Torvalds */ 23809f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 23819f06c719SChuck Lever struct nfs_lockt_args *args) 23821da177e4SLinus Torvalds { 23831da177e4SLinus Torvalds struct compound_hdr hdr = { 238466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23851da177e4SLinus Torvalds }; 23861da177e4SLinus Torvalds 23879f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23889f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23899f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23909f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2391d017931cSAndy Adamson encode_nops(&hdr); 23921da177e4SLinus Torvalds } 23931da177e4SLinus Torvalds 23941da177e4SLinus Torvalds /* 23951da177e4SLinus Torvalds * Encode a LOCKU request 23961da177e4SLinus Torvalds */ 23979f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 23989f06c719SChuck Lever struct nfs_locku_args *args) 23991da177e4SLinus Torvalds { 24001da177e4SLinus Torvalds struct compound_hdr hdr = { 240166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24021da177e4SLinus Torvalds }; 24031da177e4SLinus Torvalds 24049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24059f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24069f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24079f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2408d017931cSAndy Adamson encode_nops(&hdr); 24091da177e4SLinus Torvalds } 24101da177e4SLinus Torvalds 24119f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 24129f06c719SChuck Lever struct xdr_stream *xdr, 24139f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2414d3c7b7ccSTrond Myklebust { 2415d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2416d3c7b7ccSTrond Myklebust .minorversion = 0, 2417d3c7b7ccSTrond Myklebust }; 2418d3c7b7ccSTrond Myklebust 24199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24209f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2421d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2422d3c7b7ccSTrond Myklebust } 2423d3c7b7ccSTrond Myklebust 24241da177e4SLinus Torvalds /* 24251da177e4SLinus Torvalds * Encode a READLINK request 24261da177e4SLinus Torvalds */ 24279f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 24289f06c719SChuck Lever const struct nfs4_readlink *args) 24291da177e4SLinus Torvalds { 24301da177e4SLinus Torvalds struct compound_hdr hdr = { 243166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24321da177e4SLinus Torvalds }; 24331da177e4SLinus Torvalds 24349f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24359f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24369f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24379f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2438e3a535e1STrond Myklebust 243928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2440e3a535e1STrond Myklebust args->pgbase, args->pglen); 2441d017931cSAndy Adamson encode_nops(&hdr); 24421da177e4SLinus Torvalds } 24431da177e4SLinus Torvalds 24441da177e4SLinus Torvalds /* 24451da177e4SLinus Torvalds * Encode a READDIR request 24461da177e4SLinus Torvalds */ 24479f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 24489f06c719SChuck Lever const struct nfs4_readdir_arg *args) 24491da177e4SLinus Torvalds { 24501da177e4SLinus Torvalds struct compound_hdr hdr = { 245166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24521da177e4SLinus Torvalds }; 24531da177e4SLinus Torvalds 24549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24559f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24569f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24579f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2458d6ac02dfSTrond Myklebust 245928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2460d6ac02dfSTrond Myklebust args->pgbase, args->count); 2461d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 246228f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2463d6ac02dfSTrond Myklebust args->pgbase, args->count); 2464d017931cSAndy Adamson encode_nops(&hdr); 24651da177e4SLinus Torvalds } 24661da177e4SLinus Torvalds 24671da177e4SLinus Torvalds /* 24681da177e4SLinus Torvalds * Encode a READ request 24691da177e4SLinus Torvalds */ 24709f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 24719f06c719SChuck Lever struct nfs_readargs *args) 24721da177e4SLinus Torvalds { 24731da177e4SLinus Torvalds struct compound_hdr hdr = { 247466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24751da177e4SLinus Torvalds }; 24761da177e4SLinus Torvalds 24779f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24789f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24799f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24809f06c719SChuck Lever encode_read(xdr, args, &hdr); 24811da177e4SLinus Torvalds 248228f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 24831da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 24844f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2485d017931cSAndy Adamson encode_nops(&hdr); 24861da177e4SLinus Torvalds } 24871da177e4SLinus Torvalds 24881da177e4SLinus Torvalds /* 24891da177e4SLinus Torvalds * Encode an SETATTR request 24901da177e4SLinus Torvalds */ 24919f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 24929f06c719SChuck Lever struct nfs_setattrargs *args) 24931da177e4SLinus Torvalds { 24941da177e4SLinus Torvalds struct compound_hdr hdr = { 249566cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24961da177e4SLinus Torvalds }; 24971da177e4SLinus Torvalds 24989f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24999f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25009f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25019f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 25029f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2503d017931cSAndy Adamson encode_nops(&hdr); 25041da177e4SLinus Torvalds } 25051da177e4SLinus Torvalds 25061da177e4SLinus Torvalds /* 2507029d105eSJ. Bruce Fields * Encode a GETACL request 2508029d105eSJ. Bruce Fields */ 25099f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2510029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2511029d105eSJ. Bruce Fields { 2512029d105eSJ. Bruce Fields struct compound_hdr hdr = { 251366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2514029d105eSJ. Bruce Fields }; 251528f56694SBenny Halevy uint32_t replen; 2516029d105eSJ. Bruce Fields 25179f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25189f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25199f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2520bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 25219f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2522cf8cdbe5SAndy Adamson 252328f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2524029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2525bf118a34SAndy Adamson xdr_set_scratch_buffer(xdr, page_address(args->acl_scratch), PAGE_SIZE); 2526bf118a34SAndy Adamson 2527d017931cSAndy Adamson encode_nops(&hdr); 2528029d105eSJ. Bruce Fields } 2529029d105eSJ. Bruce Fields 2530029d105eSJ. Bruce Fields /* 25311da177e4SLinus Torvalds * Encode a WRITE request 25321da177e4SLinus Torvalds */ 25339f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 25349f06c719SChuck Lever struct nfs_writeargs *args) 25351da177e4SLinus Torvalds { 25361da177e4SLinus Torvalds struct compound_hdr hdr = { 253766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25381da177e4SLinus Torvalds }; 25391da177e4SLinus Torvalds 25409f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25419f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25429f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25439f06c719SChuck Lever encode_write(xdr, args, &hdr); 25444f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25457ffd1064SFred Isaman if (args->bitmask) 25469f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2547d017931cSAndy Adamson encode_nops(&hdr); 25481da177e4SLinus Torvalds } 25491da177e4SLinus Torvalds 25501da177e4SLinus Torvalds /* 25511da177e4SLinus Torvalds * a COMMIT request 25521da177e4SLinus Torvalds */ 25539f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 25549f06c719SChuck Lever struct nfs_writeargs *args) 25551da177e4SLinus Torvalds { 25561da177e4SLinus Torvalds struct compound_hdr hdr = { 255766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25581da177e4SLinus Torvalds }; 25591da177e4SLinus Torvalds 25609f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25619f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25629f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25639f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2564988b6dceSFred Isaman if (args->bitmask) 25659f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2566d017931cSAndy Adamson encode_nops(&hdr); 25671da177e4SLinus Torvalds } 25681da177e4SLinus Torvalds 25691da177e4SLinus Torvalds /* 25701da177e4SLinus Torvalds * FSINFO request 25711da177e4SLinus Torvalds */ 25729f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 25739f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 25741da177e4SLinus Torvalds { 25751da177e4SLinus Torvalds struct compound_hdr hdr = { 257666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25771da177e4SLinus Torvalds }; 25781da177e4SLinus Torvalds 25799f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25809f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25819f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25829f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2583d017931cSAndy Adamson encode_nops(&hdr); 25841da177e4SLinus Torvalds } 25851da177e4SLinus Torvalds 25861da177e4SLinus Torvalds /* 25871da177e4SLinus Torvalds * a PATHCONF request 25881da177e4SLinus Torvalds */ 25899f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 25909f06c719SChuck Lever const struct nfs4_pathconf_arg *args) 25911da177e4SLinus Torvalds { 25921da177e4SLinus Torvalds struct compound_hdr hdr = { 259366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25941da177e4SLinus Torvalds }; 25951da177e4SLinus Torvalds 25969f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25979f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25989f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25999f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2600d017931cSAndy Adamson &hdr); 2601d017931cSAndy Adamson encode_nops(&hdr); 26021da177e4SLinus Torvalds } 26031da177e4SLinus Torvalds 26041da177e4SLinus Torvalds /* 26051da177e4SLinus Torvalds * a STATFS request 26061da177e4SLinus Torvalds */ 26079f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 26089f06c719SChuck Lever const struct nfs4_statfs_arg *args) 26091da177e4SLinus Torvalds { 26101da177e4SLinus Torvalds struct compound_hdr hdr = { 261166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26121da177e4SLinus Torvalds }; 26131da177e4SLinus Torvalds 26149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26159f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26169f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26179f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2618d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2619d017931cSAndy Adamson encode_nops(&hdr); 26201da177e4SLinus Torvalds } 26211da177e4SLinus Torvalds 26221da177e4SLinus Torvalds /* 26231da177e4SLinus Torvalds * GETATTR_BITMAP request 26241da177e4SLinus Torvalds */ 26259f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 26269f06c719SChuck Lever struct xdr_stream *xdr, 262743652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 26281da177e4SLinus Torvalds { 26291da177e4SLinus Torvalds struct compound_hdr hdr = { 263066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26311da177e4SLinus Torvalds }; 26321da177e4SLinus Torvalds 26339f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26349f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26359f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26369f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 26371da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 26381da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2639d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2640d017931cSAndy Adamson encode_nops(&hdr); 26411da177e4SLinus Torvalds } 26421da177e4SLinus Torvalds 26431da177e4SLinus Torvalds /* 26441da177e4SLinus Torvalds * a RENEW request 26451da177e4SLinus Torvalds */ 26469f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 26479f06c719SChuck Lever struct nfs_client *clp) 26481da177e4SLinus Torvalds { 26491da177e4SLinus Torvalds struct compound_hdr hdr = { 2650d017931cSAndy Adamson .nops = 0, 26511da177e4SLinus Torvalds }; 26521da177e4SLinus Torvalds 26539f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26549f06c719SChuck Lever encode_renew(xdr, clp, &hdr); 2655d017931cSAndy Adamson encode_nops(&hdr); 26561da177e4SLinus Torvalds } 26571da177e4SLinus Torvalds 26581da177e4SLinus Torvalds /* 26591da177e4SLinus Torvalds * a SETCLIENTID request 26601da177e4SLinus Torvalds */ 26619f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 26629f06c719SChuck Lever struct xdr_stream *xdr, 26639f06c719SChuck Lever struct nfs4_setclientid *sc) 26641da177e4SLinus Torvalds { 26651da177e4SLinus Torvalds struct compound_hdr hdr = { 2666d017931cSAndy Adamson .nops = 0, 26671da177e4SLinus Torvalds }; 26681da177e4SLinus Torvalds 26699f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26709f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2671d017931cSAndy Adamson encode_nops(&hdr); 26721da177e4SLinus Torvalds } 26731da177e4SLinus Torvalds 26741da177e4SLinus Torvalds /* 26751da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 26761da177e4SLinus Torvalds */ 26779f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 26789f06c719SChuck Lever struct xdr_stream *xdr, 26799f06c719SChuck Lever struct nfs4_setclientid_res *arg) 26801da177e4SLinus Torvalds { 26811da177e4SLinus Torvalds struct compound_hdr hdr = { 2682d017931cSAndy Adamson .nops = 0, 26831da177e4SLinus Torvalds }; 2684dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 26851da177e4SLinus Torvalds 26869f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26879f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 26889f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 26899f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2690d017931cSAndy Adamson encode_nops(&hdr); 26911da177e4SLinus Torvalds } 26921da177e4SLinus Torvalds 26931da177e4SLinus Torvalds /* 26941da177e4SLinus Torvalds * DELEGRETURN request 26951da177e4SLinus Torvalds */ 26969f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 26979f06c719SChuck Lever struct xdr_stream *xdr, 26989f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 26991da177e4SLinus Torvalds { 27001da177e4SLinus Torvalds struct compound_hdr hdr = { 270166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27021da177e4SLinus Torvalds }; 27031da177e4SLinus Torvalds 27049f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27059f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27069f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 27079f06c719SChuck Lever encode_delegreturn(xdr, args->stateid, &hdr); 27089f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2709d017931cSAndy Adamson encode_nops(&hdr); 27101da177e4SLinus Torvalds } 27111da177e4SLinus Torvalds 27121da177e4SLinus Torvalds /* 2713683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2714683b57b4STrond Myklebust */ 27159f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 27169f06c719SChuck Lever struct xdr_stream *xdr, 27179f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2718683b57b4STrond Myklebust { 2719683b57b4STrond Myklebust struct compound_hdr hdr = { 272066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2721683b57b4STrond Myklebust }; 272228f56694SBenny Halevy uint32_t replen; 2723683b57b4STrond Myklebust 27249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27269f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 27279f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 272828f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 27299f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2730cf8cdbe5SAndy Adamson 273128f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2732683b57b4STrond Myklebust 0, PAGE_SIZE); 2733d017931cSAndy Adamson encode_nops(&hdr); 2734683b57b4STrond Myklebust } 2735683b57b4STrond Myklebust 27365a5ea0d4SBryan Schumaker /* 27375a5ea0d4SBryan Schumaker * Encode SECINFO request 27385a5ea0d4SBryan Schumaker */ 27395a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27405a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 27415a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 27425a5ea0d4SBryan Schumaker { 27435a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27445a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27455a5ea0d4SBryan Schumaker }; 27465a5ea0d4SBryan Schumaker 27475a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 27485a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 27495a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 27505a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 27515a5ea0d4SBryan Schumaker encode_nops(&hdr); 27525a5ea0d4SBryan Schumaker } 27535a5ea0d4SBryan Schumaker 275499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 275599fe60d0SBenny Halevy /* 275699fe60d0SBenny Halevy * EXCHANGE_ID request 275799fe60d0SBenny Halevy */ 27589f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27599f06c719SChuck Lever struct xdr_stream *xdr, 276099fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 276199fe60d0SBenny Halevy { 276299fe60d0SBenny Halevy struct compound_hdr hdr = { 2763a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 276499fe60d0SBenny Halevy }; 276599fe60d0SBenny Halevy 27669f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27679f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 276899fe60d0SBenny Halevy encode_nops(&hdr); 276999fe60d0SBenny Halevy } 27702050f0ccSAndy Adamson 27712050f0ccSAndy Adamson /* 2772fc931582SAndy Adamson * a CREATE_SESSION request 2773fc931582SAndy Adamson */ 27749f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 27759f06c719SChuck Lever struct xdr_stream *xdr, 2776fc931582SAndy Adamson struct nfs41_create_session_args *args) 2777fc931582SAndy Adamson { 2778fc931582SAndy Adamson struct compound_hdr hdr = { 2779a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2780fc931582SAndy Adamson }; 2781fc931582SAndy Adamson 27829f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27839f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2784fc931582SAndy Adamson encode_nops(&hdr); 2785fc931582SAndy Adamson } 2786fc931582SAndy Adamson 2787fc931582SAndy Adamson /* 27880f3e66c6SAndy Adamson * a DESTROY_SESSION request 27890f3e66c6SAndy Adamson */ 27909f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 27919f06c719SChuck Lever struct xdr_stream *xdr, 27920f3e66c6SAndy Adamson struct nfs4_session *session) 27930f3e66c6SAndy Adamson { 27940f3e66c6SAndy Adamson struct compound_hdr hdr = { 2795a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 27960f3e66c6SAndy Adamson }; 27970f3e66c6SAndy Adamson 27989f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27999f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28000f3e66c6SAndy Adamson encode_nops(&hdr); 28010f3e66c6SAndy Adamson } 28020f3e66c6SAndy Adamson 28030f3e66c6SAndy Adamson /* 2804fc01cea9SAndy Adamson * a SEQUENCE request 2805fc01cea9SAndy Adamson */ 28069f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2807fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2808fc01cea9SAndy Adamson { 2809fc01cea9SAndy Adamson struct compound_hdr hdr = { 2810fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2811fc01cea9SAndy Adamson }; 2812fc01cea9SAndy Adamson 28139f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28149f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2815fc01cea9SAndy Adamson encode_nops(&hdr); 2816fc01cea9SAndy Adamson } 2817fc01cea9SAndy Adamson 2818fc01cea9SAndy Adamson /* 28192050f0ccSAndy Adamson * a GET_LEASE_TIME request 28202050f0ccSAndy Adamson */ 28219f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 28229f06c719SChuck Lever struct xdr_stream *xdr, 28232050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 28242050f0ccSAndy Adamson { 28252050f0ccSAndy Adamson struct compound_hdr hdr = { 28262050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 28272050f0ccSAndy Adamson }; 2828dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 28292050f0ccSAndy Adamson 28309f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28319f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 28329f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 28339f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 28342050f0ccSAndy Adamson encode_nops(&hdr); 28352050f0ccSAndy Adamson } 283618019753SRicardo Labiaga 283718019753SRicardo Labiaga /* 283818019753SRicardo Labiaga * a RECLAIM_COMPLETE request 283918019753SRicardo Labiaga */ 28409f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28419f06c719SChuck Lever struct xdr_stream *xdr, 284218019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 284318019753SRicardo Labiaga { 284418019753SRicardo Labiaga struct compound_hdr hdr = { 284518019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 284618019753SRicardo Labiaga }; 284718019753SRicardo Labiaga 28489f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28499f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28509f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 285118019753SRicardo Labiaga encode_nops(&hdr); 285218019753SRicardo Labiaga } 285318019753SRicardo Labiaga 2854b1f69b75SAndy Adamson /* 28557f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28567f11d8d3SAndy Adamson */ 28577f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28587f11d8d3SAndy Adamson struct xdr_stream *xdr, 28597f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 28607f11d8d3SAndy Adamson { 28617f11d8d3SAndy Adamson struct compound_hdr hdr = { 28627f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 28637f11d8d3SAndy Adamson }; 28647f11d8d3SAndy Adamson 28657f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 28667f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 28677f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 28687f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 28697f11d8d3SAndy Adamson encode_nops(&hdr); 28707f11d8d3SAndy Adamson } 28717f11d8d3SAndy Adamson 28727f11d8d3SAndy Adamson /* 2873b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2874b1f69b75SAndy Adamson */ 28759f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 28769f06c719SChuck Lever struct xdr_stream *xdr, 2877b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2878b1f69b75SAndy Adamson { 2879b1f69b75SAndy Adamson struct compound_hdr hdr = { 2880b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2881b1f69b75SAndy Adamson }; 2882b1f69b75SAndy Adamson 28839f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28849f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28859f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2886b1f69b75SAndy Adamson 2887b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2888b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2889b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2890b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2891b1f69b75SAndy Adamson args->pdev->pglen); 2892b1f69b75SAndy Adamson 2893b1f69b75SAndy Adamson encode_nops(&hdr); 2894b1f69b75SAndy Adamson } 2895b1f69b75SAndy Adamson 2896b1f69b75SAndy Adamson /* 2897b1f69b75SAndy Adamson * Encode LAYOUTGET request 2898b1f69b75SAndy Adamson */ 28999f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29009f06c719SChuck Lever struct xdr_stream *xdr, 2901b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2902b1f69b75SAndy Adamson { 2903b1f69b75SAndy Adamson struct compound_hdr hdr = { 2904b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2905b1f69b75SAndy Adamson }; 2906b1f69b75SAndy Adamson 29079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29089f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29099f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 29109f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 291135124a09SWeston Andros Adamson 291235124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 291335124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 291435124a09SWeston Andros Adamson 2915b1f69b75SAndy Adamson encode_nops(&hdr); 2916b1f69b75SAndy Adamson } 2917863a3c6cSAndy Adamson 2918863a3c6cSAndy Adamson /* 2919863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2920863a3c6cSAndy Adamson */ 2921cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2922863a3c6cSAndy Adamson struct xdr_stream *xdr, 2923863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2924863a3c6cSAndy Adamson { 2925ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2926ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2927863a3c6cSAndy Adamson struct compound_hdr hdr = { 2928863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2929863a3c6cSAndy Adamson }; 2930863a3c6cSAndy Adamson 2931863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2932863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2933863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2934ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2935863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2936863a3c6cSAndy Adamson encode_nops(&hdr); 2937cbe82603SBenny Halevy } 2938cbe82603SBenny Halevy 2939cbe82603SBenny Halevy /* 2940cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2941cbe82603SBenny Halevy */ 2942cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2943cbe82603SBenny Halevy struct xdr_stream *xdr, 2944cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2945cbe82603SBenny Halevy { 2946cbe82603SBenny Halevy struct compound_hdr hdr = { 2947cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2948cbe82603SBenny Halevy }; 2949cbe82603SBenny Halevy 2950cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2951cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2952cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2953cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2954cbe82603SBenny Halevy encode_nops(&hdr); 2955863a3c6cSAndy Adamson } 2956fca78d6dSBryan Schumaker 2957fca78d6dSBryan Schumaker /* 2958fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2959fca78d6dSBryan Schumaker */ 2960fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2961fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2962fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 2963fca78d6dSBryan Schumaker { 2964fca78d6dSBryan Schumaker struct compound_hdr hdr = { 2965fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2966fca78d6dSBryan Schumaker }; 2967fca78d6dSBryan Schumaker 2968fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 2969fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 2970fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 2971fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 2972fca78d6dSBryan Schumaker encode_nops(&hdr); 2973fca78d6dSBryan Schumaker return 0; 2974fca78d6dSBryan Schumaker } 29757d974794SBryan Schumaker 29767d974794SBryan Schumaker /* 29777d974794SBryan Schumaker * Encode TEST_STATEID request 29787d974794SBryan Schumaker */ 29797d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 29807d974794SBryan Schumaker struct xdr_stream *xdr, 29817d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 29827d974794SBryan Schumaker { 29837d974794SBryan Schumaker struct compound_hdr hdr = { 29847d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29857d974794SBryan Schumaker }; 29867d974794SBryan Schumaker 29877d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 29887d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 29897d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 29907d974794SBryan Schumaker encode_nops(&hdr); 29917d974794SBryan Schumaker } 29929aeda35fSBryan Schumaker 29939aeda35fSBryan Schumaker /* 29949aeda35fSBryan Schumaker * Encode FREE_STATEID request 29959aeda35fSBryan Schumaker */ 29969aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 29979aeda35fSBryan Schumaker struct xdr_stream *xdr, 29989aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 29999aeda35fSBryan Schumaker { 30009aeda35fSBryan Schumaker struct compound_hdr hdr = { 30019aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30029aeda35fSBryan Schumaker }; 30039aeda35fSBryan Schumaker 30049aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30059aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30069aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 30079aeda35fSBryan Schumaker encode_nops(&hdr); 30089aeda35fSBryan Schumaker } 300999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 301099fe60d0SBenny Halevy 3011686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3012686841b3SBenny Halevy { 3013686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3014686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3015686841b3SBenny Halevy func, xdr->end - xdr->p); 3016686841b3SBenny Halevy } 30171da177e4SLinus Torvalds 3018683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 30191da177e4SLinus Torvalds { 30208687b63aSAl Viro __be32 *p; 30211da177e4SLinus Torvalds 3022c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3023c0eae66eSBenny Halevy if (unlikely(!p)) 3024c0eae66eSBenny Halevy goto out_overflow; 3025cccddf4fSBenny Halevy *len = be32_to_cpup(p); 3026c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 3027c0eae66eSBenny Halevy if (unlikely(!p)) 3028c0eae66eSBenny Halevy goto out_overflow; 30291da177e4SLinus Torvalds *string = (char *)p; 30301da177e4SLinus Torvalds return 0; 3031c0eae66eSBenny Halevy out_overflow: 3032c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3033c0eae66eSBenny Halevy return -EIO; 30341da177e4SLinus Torvalds } 30351da177e4SLinus Torvalds 30361da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 30371da177e4SLinus Torvalds { 30388687b63aSAl Viro __be32 *p; 30391da177e4SLinus Torvalds 3040c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3041c0eae66eSBenny Halevy if (unlikely(!p)) 3042c0eae66eSBenny Halevy goto out_overflow; 30436f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3044cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30451da177e4SLinus Torvalds 3046c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3047c0eae66eSBenny Halevy if (unlikely(!p)) 3048c0eae66eSBenny Halevy goto out_overflow; 30491da177e4SLinus Torvalds hdr->tag = (char *)p; 30501da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3051cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3052aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3053aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30541da177e4SLinus Torvalds return 0; 3055c0eae66eSBenny Halevy out_overflow: 3056c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3057c0eae66eSBenny Halevy return -EIO; 30581da177e4SLinus Torvalds } 30591da177e4SLinus Torvalds 30601da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 30611da177e4SLinus Torvalds { 30628687b63aSAl Viro __be32 *p; 30631da177e4SLinus Torvalds uint32_t opnum; 30641da177e4SLinus Torvalds int32_t nfserr; 30651da177e4SLinus Torvalds 3066c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3067c0eae66eSBenny Halevy if (unlikely(!p)) 3068c0eae66eSBenny Halevy goto out_overflow; 30696f723f77SBenny Halevy opnum = be32_to_cpup(p++); 30701da177e4SLinus Torvalds if (opnum != expected) { 3071fe82a183SChuck Lever dprintk("nfs: Server returned operation" 30721da177e4SLinus Torvalds " %d but we issued a request for %d\n", 30731da177e4SLinus Torvalds opnum, expected); 30741da177e4SLinus Torvalds return -EIO; 30751da177e4SLinus Torvalds } 3076cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 30771da177e4SLinus Torvalds if (nfserr != NFS_OK) 3078856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 30791da177e4SLinus Torvalds return 0; 3080c0eae66eSBenny Halevy out_overflow: 3081c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3082c0eae66eSBenny Halevy return -EIO; 30831da177e4SLinus Torvalds } 30841da177e4SLinus Torvalds 30851da177e4SLinus Torvalds /* Dummy routine */ 3086adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 30871da177e4SLinus Torvalds { 30888687b63aSAl Viro __be32 *p; 3089683b57b4STrond Myklebust unsigned int strlen; 30901da177e4SLinus Torvalds char *str; 30911da177e4SLinus Torvalds 3092c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3093c0eae66eSBenny Halevy if (likely(p)) 30941da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3095c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3096c0eae66eSBenny Halevy return -EIO; 30971da177e4SLinus Torvalds } 30981da177e4SLinus Torvalds 30991da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 31001da177e4SLinus Torvalds { 31018687b63aSAl Viro uint32_t bmlen; 31028687b63aSAl Viro __be32 *p; 31031da177e4SLinus Torvalds 3104c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3105c0eae66eSBenny Halevy if (unlikely(!p)) 3106c0eae66eSBenny Halevy goto out_overflow; 3107cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 31081da177e4SLinus Torvalds 3109dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3110c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3111c0eae66eSBenny Halevy if (unlikely(!p)) 3112c0eae66eSBenny Halevy goto out_overflow; 31131da177e4SLinus Torvalds if (bmlen > 0) { 31146f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3115dae100c2SFred Isaman if (bmlen > 1) { 3116dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3117dae100c2SFred Isaman if (bmlen > 2) 3118dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3119dae100c2SFred Isaman } 31201da177e4SLinus Torvalds } 31211da177e4SLinus Torvalds return 0; 3122c0eae66eSBenny Halevy out_overflow: 3123c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3124c0eae66eSBenny Halevy return -EIO; 31251da177e4SLinus Torvalds } 31261da177e4SLinus Torvalds 31278687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 31281da177e4SLinus Torvalds { 31298687b63aSAl Viro __be32 *p; 31301da177e4SLinus Torvalds 3131c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3132c0eae66eSBenny Halevy if (unlikely(!p)) 3133c0eae66eSBenny Halevy goto out_overflow; 3134cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 31351da177e4SLinus Torvalds *savep = xdr->p; 31361da177e4SLinus Torvalds return 0; 3137c0eae66eSBenny Halevy out_overflow: 3138c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3139c0eae66eSBenny Halevy return -EIO; 31401da177e4SLinus Torvalds } 31411da177e4SLinus Torvalds 31421da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31431da177e4SLinus Torvalds { 31441da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31453388bff5SRoman Borisov int ret; 31463388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31473388bff5SRoman Borisov if (unlikely(ret < 0)) 31483388bff5SRoman Borisov return ret; 31491da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31501da177e4SLinus Torvalds } else 3151dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3152dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3153dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31541da177e4SLinus Torvalds return 0; 31551da177e4SLinus Torvalds } 31561da177e4SLinus Torvalds 31571da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31581da177e4SLinus Torvalds { 31598687b63aSAl Viro __be32 *p; 3160409924e4STrond Myklebust int ret = 0; 31611da177e4SLinus Torvalds 31621da177e4SLinus Torvalds *type = 0; 31631da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 31641da177e4SLinus Torvalds return -EIO; 31651da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3166c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3167c0eae66eSBenny Halevy if (unlikely(!p)) 3168c0eae66eSBenny Halevy goto out_overflow; 3169cccddf4fSBenny Halevy *type = be32_to_cpup(p); 31701da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 31713110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 31721da177e4SLinus Torvalds return -EIO; 31731da177e4SLinus Torvalds } 31741da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3175409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 31761da177e4SLinus Torvalds } 3177bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3178409924e4STrond Myklebust return ret; 3179c0eae66eSBenny Halevy out_overflow: 3180c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3181c0eae66eSBenny Halevy return -EIO; 31821da177e4SLinus Torvalds } 31831da177e4SLinus Torvalds 31841da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 31851da177e4SLinus Torvalds { 31868687b63aSAl Viro __be32 *p; 3187409924e4STrond Myklebust int ret = 0; 31881da177e4SLinus Torvalds 31891da177e4SLinus Torvalds *change = 0; 31901da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 31911da177e4SLinus Torvalds return -EIO; 31921da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3193c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3194c0eae66eSBenny Halevy if (unlikely(!p)) 3195c0eae66eSBenny Halevy goto out_overflow; 3196cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 31971da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3198409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 31991da177e4SLinus Torvalds } 32003110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 32011da177e4SLinus Torvalds (unsigned long long)*change); 3202409924e4STrond Myklebust return ret; 3203c0eae66eSBenny Halevy out_overflow: 3204c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3205c0eae66eSBenny Halevy return -EIO; 32061da177e4SLinus Torvalds } 32071da177e4SLinus Torvalds 32081da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 32091da177e4SLinus Torvalds { 32108687b63aSAl Viro __be32 *p; 3211409924e4STrond Myklebust int ret = 0; 32121da177e4SLinus Torvalds 32131da177e4SLinus Torvalds *size = 0; 32141da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 32151da177e4SLinus Torvalds return -EIO; 32161da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3217c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3218c0eae66eSBenny Halevy if (unlikely(!p)) 3219c0eae66eSBenny Halevy goto out_overflow; 3220cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32211da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3222409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32231da177e4SLinus Torvalds } 32243110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3225409924e4STrond Myklebust return ret; 3226c0eae66eSBenny Halevy out_overflow: 3227c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3228c0eae66eSBenny Halevy return -EIO; 32291da177e4SLinus Torvalds } 32301da177e4SLinus Torvalds 32311da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32321da177e4SLinus Torvalds { 32338687b63aSAl Viro __be32 *p; 32341da177e4SLinus Torvalds 32351da177e4SLinus Torvalds *res = 0; 32361da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32371da177e4SLinus Torvalds return -EIO; 32381da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3239c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3240c0eae66eSBenny Halevy if (unlikely(!p)) 3241c0eae66eSBenny Halevy goto out_overflow; 3242cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32431da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32441da177e4SLinus Torvalds } 32453110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32461da177e4SLinus Torvalds return 0; 3247c0eae66eSBenny Halevy out_overflow: 3248c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3249c0eae66eSBenny Halevy return -EIO; 32501da177e4SLinus Torvalds } 32511da177e4SLinus Torvalds 32521da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32531da177e4SLinus Torvalds { 32548687b63aSAl Viro __be32 *p; 32551da177e4SLinus Torvalds 32561da177e4SLinus Torvalds *res = 0; 32571da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 32581da177e4SLinus Torvalds return -EIO; 32591da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3260c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3261c0eae66eSBenny Halevy if (unlikely(!p)) 3262c0eae66eSBenny Halevy goto out_overflow; 3263cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32641da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 32651da177e4SLinus Torvalds } 32663110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 32671da177e4SLinus Torvalds return 0; 3268c0eae66eSBenny Halevy out_overflow: 3269c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3270c0eae66eSBenny Halevy return -EIO; 32711da177e4SLinus Torvalds } 32721da177e4SLinus Torvalds 32738b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 32741da177e4SLinus Torvalds { 32758687b63aSAl Viro __be32 *p; 3276409924e4STrond Myklebust int ret = 0; 32771da177e4SLinus Torvalds 32781da177e4SLinus Torvalds fsid->major = 0; 32791da177e4SLinus Torvalds fsid->minor = 0; 32801da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 32811da177e4SLinus Torvalds return -EIO; 32821da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3283c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3284c0eae66eSBenny Halevy if (unlikely(!p)) 3285c0eae66eSBenny Halevy goto out_overflow; 32863ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3287cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 32881da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3289409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 32901da177e4SLinus Torvalds } 32913110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 32921da177e4SLinus Torvalds (unsigned long long)fsid->major, 32931da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3294409924e4STrond Myklebust return ret; 3295c0eae66eSBenny Halevy out_overflow: 3296c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3297c0eae66eSBenny Halevy return -EIO; 32981da177e4SLinus Torvalds } 32991da177e4SLinus Torvalds 33001da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33011da177e4SLinus Torvalds { 33028687b63aSAl Viro __be32 *p; 33031da177e4SLinus Torvalds 33041da177e4SLinus Torvalds *res = 60; 33051da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 33061da177e4SLinus Torvalds return -EIO; 33071da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3308c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3309c0eae66eSBenny Halevy if (unlikely(!p)) 3310c0eae66eSBenny Halevy goto out_overflow; 3311cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33121da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 33131da177e4SLinus Torvalds } 33143110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 33151da177e4SLinus Torvalds return 0; 3316c0eae66eSBenny Halevy out_overflow: 3317c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3318c0eae66eSBenny Halevy return -EIO; 33191da177e4SLinus Torvalds } 33201da177e4SLinus Torvalds 3321ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3322ae42c70aSBryan Schumaker { 3323ae42c70aSBryan Schumaker __be32 *p; 3324ae42c70aSBryan Schumaker 3325ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3326ae42c70aSBryan Schumaker return -EIO; 3327ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3328ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3329ae42c70aSBryan Schumaker if (unlikely(!p)) 3330ae42c70aSBryan Schumaker goto out_overflow; 3331ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3332ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3333ae42c70aSBryan Schumaker } 3334ae42c70aSBryan Schumaker return 0; 3335ae42c70aSBryan Schumaker out_overflow: 3336ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3337ae42c70aSBryan Schumaker return -EIO; 3338ae42c70aSBryan Schumaker } 3339ae42c70aSBryan Schumaker 3340ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3341ae42c70aSBryan Schumaker { 3342ae42c70aSBryan Schumaker __be32 *p; 3343ae42c70aSBryan Schumaker int len; 3344ae42c70aSBryan Schumaker 33457ad07353STrond Myklebust if (fh != NULL) 3346ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3347ae42c70aSBryan Schumaker 3348ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3349ae42c70aSBryan Schumaker return -EIO; 3350ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3351ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3352ae42c70aSBryan Schumaker if (unlikely(!p)) 3353ae42c70aSBryan Schumaker goto out_overflow; 3354ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3355ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3356ae42c70aSBryan Schumaker return -EIO; 3357ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3358ae42c70aSBryan Schumaker if (unlikely(!p)) 3359ae42c70aSBryan Schumaker goto out_overflow; 33607ad07353STrond Myklebust if (fh != NULL) { 3361ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 33627ad07353STrond Myklebust fh->size = len; 33637ad07353STrond Myklebust } 3364ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3365ae42c70aSBryan Schumaker } 3366ae42c70aSBryan Schumaker return 0; 3367ae42c70aSBryan Schumaker out_overflow: 3368ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3369ae42c70aSBryan Schumaker return -EIO; 3370ae42c70aSBryan Schumaker } 3371ae42c70aSBryan Schumaker 33721da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33731da177e4SLinus Torvalds { 33748687b63aSAl Viro __be32 *p; 33751da177e4SLinus Torvalds 33761da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 33771da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 33781da177e4SLinus Torvalds return -EIO; 33791da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3380c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3381c0eae66eSBenny Halevy if (unlikely(!p)) 3382c0eae66eSBenny Halevy goto out_overflow; 3383cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33841da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 33851da177e4SLinus Torvalds } 33863110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 33871da177e4SLinus Torvalds return 0; 3388c0eae66eSBenny Halevy out_overflow: 3389c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3390c0eae66eSBenny Halevy return -EIO; 33911da177e4SLinus Torvalds } 33921da177e4SLinus Torvalds 33931da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 33941da177e4SLinus Torvalds { 33958687b63aSAl Viro __be32 *p; 3396409924e4STrond Myklebust int ret = 0; 33971da177e4SLinus Torvalds 33981da177e4SLinus Torvalds *fileid = 0; 33991da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 34001da177e4SLinus Torvalds return -EIO; 34011da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3402c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3403c0eae66eSBenny Halevy if (unlikely(!p)) 3404c0eae66eSBenny Halevy goto out_overflow; 3405cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 34061da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3407409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 34081da177e4SLinus Torvalds } 34093110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3410409924e4STrond Myklebust return ret; 3411c0eae66eSBenny Halevy out_overflow: 3412c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3413c0eae66eSBenny Halevy return -EIO; 34141da177e4SLinus Torvalds } 34151da177e4SLinus Torvalds 341699baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 341799baf625SManoj Naik { 34188687b63aSAl Viro __be32 *p; 3419409924e4STrond Myklebust int ret = 0; 342099baf625SManoj Naik 342199baf625SManoj Naik *fileid = 0; 342299baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 342399baf625SManoj Naik return -EIO; 342499baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3425c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3426c0eae66eSBenny Halevy if (unlikely(!p)) 3427c0eae66eSBenny Halevy goto out_overflow; 3428cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 342999baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 343028331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 343199baf625SManoj Naik } 34323110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3433409924e4STrond Myklebust return ret; 3434c0eae66eSBenny Halevy out_overflow: 3435c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3436c0eae66eSBenny Halevy return -EIO; 343799baf625SManoj Naik } 343899baf625SManoj Naik 34391da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34401da177e4SLinus Torvalds { 34418687b63aSAl Viro __be32 *p; 34421da177e4SLinus Torvalds int status = 0; 34431da177e4SLinus Torvalds 34441da177e4SLinus Torvalds *res = 0; 34451da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 34461da177e4SLinus Torvalds return -EIO; 34471da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3448c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3449c0eae66eSBenny Halevy if (unlikely(!p)) 3450c0eae66eSBenny Halevy goto out_overflow; 3451cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34521da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 34531da177e4SLinus Torvalds } 34543110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 34551da177e4SLinus Torvalds return status; 3456c0eae66eSBenny Halevy out_overflow: 3457c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3458c0eae66eSBenny Halevy return -EIO; 34591da177e4SLinus Torvalds } 34601da177e4SLinus Torvalds 34611da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34621da177e4SLinus Torvalds { 34638687b63aSAl Viro __be32 *p; 34641da177e4SLinus Torvalds int status = 0; 34651da177e4SLinus Torvalds 34661da177e4SLinus Torvalds *res = 0; 34671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 34681da177e4SLinus Torvalds return -EIO; 34691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3470c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3471c0eae66eSBenny Halevy if (unlikely(!p)) 3472c0eae66eSBenny Halevy goto out_overflow; 3473cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34741da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 34751da177e4SLinus Torvalds } 34763110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 34771da177e4SLinus Torvalds return status; 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_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34841da177e4SLinus Torvalds { 34858687b63aSAl Viro __be32 *p; 34861da177e4SLinus Torvalds int status = 0; 34871da177e4SLinus Torvalds 34881da177e4SLinus Torvalds *res = 0; 34891da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 34901da177e4SLinus Torvalds return -EIO; 34911da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3492c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3493c0eae66eSBenny Halevy if (unlikely(!p)) 3494c0eae66eSBenny Halevy goto out_overflow; 3495cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34961da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 34971da177e4SLinus Torvalds } 34983110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 34991da177e4SLinus Torvalds return status; 3500c0eae66eSBenny Halevy out_overflow: 3501c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3502c0eae66eSBenny Halevy return -EIO; 35031da177e4SLinus Torvalds } 35041da177e4SLinus Torvalds 35057aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 35067aaa0b3bSManoj Naik { 3507464ad6b1SChuck Lever u32 n; 35088687b63aSAl Viro __be32 *p; 35097aaa0b3bSManoj Naik int status = 0; 35107aaa0b3bSManoj Naik 3511c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3512c0eae66eSBenny Halevy if (unlikely(!p)) 3513c0eae66eSBenny Halevy goto out_overflow; 3514cccddf4fSBenny Halevy n = be32_to_cpup(p); 351533a43f28SAndy Adamson if (n == 0) 351633a43f28SAndy Adamson goto root_path; 35177aaa0b3bSManoj Naik dprintk("path "); 35187aaa0b3bSManoj Naik path->ncomponents = 0; 35197aaa0b3bSManoj Naik while (path->ncomponents < n) { 35207aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 35217aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 35227aaa0b3bSManoj Naik if (unlikely(status != 0)) 35237aaa0b3bSManoj Naik goto out_eio; 35247aaa0b3bSManoj Naik if (path->ncomponents != n) 35257aaa0b3bSManoj Naik dprintk("/"); 35267aaa0b3bSManoj Naik dprintk("%s", component->data); 35277aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 35287aaa0b3bSManoj Naik path->ncomponents++; 35297aaa0b3bSManoj Naik else { 35307aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 35317aaa0b3bSManoj Naik goto out_eio; 35327aaa0b3bSManoj Naik } 35337aaa0b3bSManoj Naik } 35347aaa0b3bSManoj Naik out: 35357aaa0b3bSManoj Naik dprintk("\n"); 35367aaa0b3bSManoj Naik return status; 353733a43f28SAndy Adamson root_path: 353833a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 353933a43f28SAndy Adamson path->ncomponents = 1; 354033a43f28SAndy Adamson path->components[0].len=0; 354133a43f28SAndy Adamson path->components[0].data=NULL; 354233a43f28SAndy Adamson dprintk("path /\n"); 354333a43f28SAndy Adamson goto out; 35447aaa0b3bSManoj Naik out_eio: 35457aaa0b3bSManoj Naik dprintk(" status %d", status); 35467aaa0b3bSManoj Naik status = -EIO; 35477aaa0b3bSManoj Naik goto out; 3548c0eae66eSBenny Halevy out_overflow: 3549c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3550c0eae66eSBenny Halevy return -EIO; 35517aaa0b3bSManoj Naik } 35527aaa0b3bSManoj Naik 35537aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3554683b57b4STrond Myklebust { 3555683b57b4STrond Myklebust int n; 35568687b63aSAl Viro __be32 *p; 3557683b57b4STrond Myklebust int status = -EIO; 3558683b57b4STrond Myklebust 3559683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3560683b57b4STrond Myklebust goto out; 3561683b57b4STrond Myklebust status = 0; 3562683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3563683b57b4STrond Myklebust goto out; 35643110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 35657aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3566683b57b4STrond Myklebust if (unlikely(status != 0)) 3567683b57b4STrond Myklebust goto out; 3568c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3569c0eae66eSBenny Halevy if (unlikely(!p)) 3570c0eae66eSBenny Halevy goto out_overflow; 3571cccddf4fSBenny Halevy n = be32_to_cpup(p); 3572683b57b4STrond Myklebust if (n <= 0) 3573683b57b4STrond Myklebust goto out_eio; 3574683b57b4STrond Myklebust res->nlocations = 0; 3575683b57b4STrond Myklebust while (res->nlocations < n) { 3576464ad6b1SChuck Lever u32 m; 35777aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3578683b57b4STrond Myklebust 3579c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3580c0eae66eSBenny Halevy if (unlikely(!p)) 3581c0eae66eSBenny Halevy goto out_overflow; 3582cccddf4fSBenny Halevy m = be32_to_cpup(p); 35837aaa0b3bSManoj Naik 35847aaa0b3bSManoj Naik loc->nservers = 0; 35853110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 35867aaa0b3bSManoj Naik while (loc->nservers < m) { 35877aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 35887aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3589683b57b4STrond Myklebust if (unlikely(status != 0)) 3590683b57b4STrond Myklebust goto out_eio; 35917aaa0b3bSManoj Naik dprintk("%s ", server->data); 35927aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 35937aaa0b3bSManoj Naik loc->nservers++; 35947aaa0b3bSManoj Naik else { 3595464ad6b1SChuck Lever unsigned int i; 3596464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3597464ad6b1SChuck Lever "returned for location %u\n", 35983110ff80SHarvey Harrison __func__, 3599464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3600464ad6b1SChuck Lever m, res->nlocations); 36017aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 36022e42c3e2STrond Myklebust unsigned int len; 36037aaa0b3bSManoj Naik char *data; 36047aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3605683b57b4STrond Myklebust if (unlikely(status != 0)) 3606683b57b4STrond Myklebust goto out_eio; 36077aaa0b3bSManoj Naik } 36087aaa0b3bSManoj Naik } 36097aaa0b3bSManoj Naik } 36107aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 36117aaa0b3bSManoj Naik if (unlikely(status != 0)) 36127aaa0b3bSManoj Naik goto out_eio; 36137aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3614683b57b4STrond Myklebust res->nlocations++; 3615683b57b4STrond Myklebust } 3616409924e4STrond Myklebust if (res->nlocations != 0) 3617409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3618683b57b4STrond Myklebust out: 36193110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3620683b57b4STrond Myklebust return status; 3621c0eae66eSBenny Halevy out_overflow: 3622c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3623683b57b4STrond Myklebust out_eio: 3624683b57b4STrond Myklebust status = -EIO; 3625683b57b4STrond Myklebust goto out; 3626683b57b4STrond Myklebust } 3627683b57b4STrond Myklebust 36281da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36291da177e4SLinus Torvalds { 36308687b63aSAl Viro __be32 *p; 36311da177e4SLinus Torvalds int status = 0; 36321da177e4SLinus Torvalds 36331da177e4SLinus Torvalds *res = 0; 36341da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36351da177e4SLinus Torvalds return -EIO; 36361da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3637c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3638c0eae66eSBenny Halevy if (unlikely(!p)) 3639c0eae66eSBenny Halevy goto out_overflow; 3640cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36411da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 36421da177e4SLinus Torvalds } 36433110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 36441da177e4SLinus Torvalds return status; 3645c0eae66eSBenny Halevy out_overflow: 3646c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3647c0eae66eSBenny Halevy return -EIO; 36481da177e4SLinus Torvalds } 36491da177e4SLinus Torvalds 36501da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 36511da177e4SLinus Torvalds { 36528687b63aSAl Viro __be32 *p; 36531da177e4SLinus Torvalds int status = 0; 36541da177e4SLinus Torvalds 36551da177e4SLinus Torvalds *maxlink = 1; 36561da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 36571da177e4SLinus Torvalds return -EIO; 36581da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3659c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3660c0eae66eSBenny Halevy if (unlikely(!p)) 3661c0eae66eSBenny Halevy goto out_overflow; 3662cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 36631da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 36641da177e4SLinus Torvalds } 36653110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 36661da177e4SLinus Torvalds return status; 3667c0eae66eSBenny Halevy out_overflow: 3668c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3669c0eae66eSBenny Halevy return -EIO; 36701da177e4SLinus Torvalds } 36711da177e4SLinus Torvalds 36721da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 36731da177e4SLinus Torvalds { 36748687b63aSAl Viro __be32 *p; 36751da177e4SLinus Torvalds int status = 0; 36761da177e4SLinus Torvalds 36771da177e4SLinus Torvalds *maxname = 1024; 36781da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 36791da177e4SLinus Torvalds return -EIO; 36801da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3681c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3682c0eae66eSBenny Halevy if (unlikely(!p)) 3683c0eae66eSBenny Halevy goto out_overflow; 3684cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 36851da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 36861da177e4SLinus Torvalds } 36873110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 36881da177e4SLinus Torvalds return status; 3689c0eae66eSBenny Halevy out_overflow: 3690c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3691c0eae66eSBenny Halevy return -EIO; 36921da177e4SLinus Torvalds } 36931da177e4SLinus Torvalds 36941da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 36951da177e4SLinus Torvalds { 36968687b63aSAl Viro __be32 *p; 36971da177e4SLinus Torvalds int status = 0; 36981da177e4SLinus Torvalds 36991da177e4SLinus Torvalds *res = 1024; 37001da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 37011da177e4SLinus Torvalds return -EIO; 37021da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 37031da177e4SLinus Torvalds uint64_t maxread; 3704c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3705c0eae66eSBenny Halevy if (unlikely(!p)) 3706c0eae66eSBenny Halevy goto out_overflow; 3707cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 37081da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 37091da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 37101da177e4SLinus Torvalds *res = (uint32_t)maxread; 37111da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37121da177e4SLinus Torvalds } 37133110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37141da177e4SLinus Torvalds return status; 3715c0eae66eSBenny Halevy out_overflow: 3716c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3717c0eae66eSBenny Halevy return -EIO; 37181da177e4SLinus Torvalds } 37191da177e4SLinus Torvalds 37201da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37211da177e4SLinus Torvalds { 37228687b63aSAl Viro __be32 *p; 37231da177e4SLinus Torvalds int status = 0; 37241da177e4SLinus Torvalds 37251da177e4SLinus Torvalds *res = 1024; 37261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37271da177e4SLinus Torvalds return -EIO; 37281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37291da177e4SLinus Torvalds uint64_t maxwrite; 3730c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3731c0eae66eSBenny Halevy if (unlikely(!p)) 3732c0eae66eSBenny Halevy goto out_overflow; 3733cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37341da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37351da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37361da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37371da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37381da177e4SLinus Torvalds } 37393110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37401da177e4SLinus Torvalds return status; 3741c0eae66eSBenny Halevy out_overflow: 3742c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3743c0eae66eSBenny Halevy return -EIO; 37441da177e4SLinus Torvalds } 37451da177e4SLinus Torvalds 3746bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 37471da177e4SLinus Torvalds { 3748bca79478STrond Myklebust uint32_t tmp; 37498687b63aSAl Viro __be32 *p; 3750409924e4STrond Myklebust int ret = 0; 37511da177e4SLinus Torvalds 37521da177e4SLinus Torvalds *mode = 0; 37531da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 37541da177e4SLinus Torvalds return -EIO; 37551da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3756c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3757c0eae66eSBenny Halevy if (unlikely(!p)) 3758c0eae66eSBenny Halevy goto out_overflow; 3759cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3760bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 37611da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3762409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 37631da177e4SLinus Torvalds } 37643110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3765409924e4STrond Myklebust return ret; 3766c0eae66eSBenny Halevy out_overflow: 3767c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3768c0eae66eSBenny Halevy return -EIO; 37691da177e4SLinus Torvalds } 37701da177e4SLinus Torvalds 37711da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 37721da177e4SLinus Torvalds { 37738687b63aSAl Viro __be32 *p; 3774409924e4STrond Myklebust int ret = 0; 37751da177e4SLinus Torvalds 37761da177e4SLinus Torvalds *nlink = 1; 37771da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 37781da177e4SLinus Torvalds return -EIO; 37791da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3780c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3781c0eae66eSBenny Halevy if (unlikely(!p)) 3782c0eae66eSBenny Halevy goto out_overflow; 3783cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 37841da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3785409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 37861da177e4SLinus Torvalds } 37873110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3788409924e4STrond Myklebust return ret; 3789c0eae66eSBenny Halevy out_overflow: 3790c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3791c0eae66eSBenny Halevy return -EIO; 37921da177e4SLinus Torvalds } 37931da177e4SLinus Torvalds 379480e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 37956926afd1STrond Myklebust const struct nfs_server *server, uint32_t *uid, 37966926afd1STrond Myklebust struct nfs4_string *owner_name) 37971da177e4SLinus Torvalds { 37988687b63aSAl Viro uint32_t len; 37998687b63aSAl Viro __be32 *p; 3800409924e4STrond Myklebust int ret = 0; 38011da177e4SLinus Torvalds 38021da177e4SLinus Torvalds *uid = -2; 38031da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 38041da177e4SLinus Torvalds return -EIO; 38051da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3806c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3807c0eae66eSBenny Halevy if (unlikely(!p)) 3808c0eae66eSBenny Halevy goto out_overflow; 3809cccddf4fSBenny Halevy len = be32_to_cpup(p); 3810c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3811c0eae66eSBenny Halevy if (unlikely(!p)) 3812c0eae66eSBenny Halevy goto out_overflow; 38136926afd1STrond Myklebust if (owner_name != NULL) { 38146926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38156926afd1STrond Myklebust if (owner_name->data != NULL) { 38166926afd1STrond Myklebust owner_name->len = len; 38176926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38186926afd1STrond Myklebust } 381980e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3820e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3821409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3822409924e4STrond Myklebust else 38231da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38243110ff80SHarvey Harrison __func__); 38251da177e4SLinus Torvalds } else 3826fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38273110ff80SHarvey Harrison __func__, len); 38281da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38291da177e4SLinus Torvalds } 38303110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3831409924e4STrond Myklebust return ret; 3832c0eae66eSBenny Halevy out_overflow: 3833c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3834c0eae66eSBenny Halevy return -EIO; 38351da177e4SLinus Torvalds } 38361da177e4SLinus Torvalds 383780e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 38386926afd1STrond Myklebust const struct nfs_server *server, uint32_t *gid, 38396926afd1STrond Myklebust struct nfs4_string *group_name) 38401da177e4SLinus Torvalds { 38418687b63aSAl Viro uint32_t len; 38428687b63aSAl Viro __be32 *p; 3843409924e4STrond Myklebust int ret = 0; 38441da177e4SLinus Torvalds 38451da177e4SLinus Torvalds *gid = -2; 38461da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 38471da177e4SLinus Torvalds return -EIO; 38481da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3849c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3850c0eae66eSBenny Halevy if (unlikely(!p)) 3851c0eae66eSBenny Halevy goto out_overflow; 3852cccddf4fSBenny Halevy len = be32_to_cpup(p); 3853c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3854c0eae66eSBenny Halevy if (unlikely(!p)) 3855c0eae66eSBenny Halevy goto out_overflow; 38566926afd1STrond Myklebust if (group_name != NULL) { 38576926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 38586926afd1STrond Myklebust if (group_name->data != NULL) { 38596926afd1STrond Myklebust group_name->len = len; 38606926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 38616926afd1STrond Myklebust } 386280e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3863e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3864409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3865409924e4STrond Myklebust else 38661da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 38673110ff80SHarvey Harrison __func__); 38681da177e4SLinus Torvalds } else 3869fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38703110ff80SHarvey Harrison __func__, len); 38711da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 38721da177e4SLinus Torvalds } 38733110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3874409924e4STrond Myklebust return ret; 3875c0eae66eSBenny Halevy out_overflow: 3876c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3877c0eae66eSBenny Halevy return -EIO; 38781da177e4SLinus Torvalds } 38791da177e4SLinus Torvalds 38801da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 38811da177e4SLinus Torvalds { 38828687b63aSAl Viro uint32_t major = 0, minor = 0; 38838687b63aSAl Viro __be32 *p; 3884409924e4STrond Myklebust int ret = 0; 38851da177e4SLinus Torvalds 38861da177e4SLinus Torvalds *rdev = MKDEV(0,0); 38871da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 38881da177e4SLinus Torvalds return -EIO; 38891da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 38901da177e4SLinus Torvalds dev_t tmp; 38911da177e4SLinus Torvalds 3892c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3893c0eae66eSBenny Halevy if (unlikely(!p)) 3894c0eae66eSBenny Halevy goto out_overflow; 38956f723f77SBenny Halevy major = be32_to_cpup(p++); 3896cccddf4fSBenny Halevy minor = be32_to_cpup(p); 38971da177e4SLinus Torvalds tmp = MKDEV(major, minor); 38981da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 38991da177e4SLinus Torvalds *rdev = tmp; 39001da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3901409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39021da177e4SLinus Torvalds } 39033110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3904409924e4STrond Myklebust return ret; 3905c0eae66eSBenny Halevy out_overflow: 3906c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3907c0eae66eSBenny Halevy return -EIO; 39081da177e4SLinus Torvalds } 39091da177e4SLinus Torvalds 39101da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39111da177e4SLinus Torvalds { 39128687b63aSAl Viro __be32 *p; 39131da177e4SLinus Torvalds int status = 0; 39141da177e4SLinus Torvalds 39151da177e4SLinus Torvalds *res = 0; 39161da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39171da177e4SLinus Torvalds return -EIO; 39181da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3919c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3920c0eae66eSBenny Halevy if (unlikely(!p)) 3921c0eae66eSBenny Halevy goto out_overflow; 3922cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39231da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39241da177e4SLinus Torvalds } 39253110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39261da177e4SLinus Torvalds return status; 3927c0eae66eSBenny Halevy out_overflow: 3928c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3929c0eae66eSBenny Halevy return -EIO; 39301da177e4SLinus Torvalds } 39311da177e4SLinus Torvalds 39321da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39331da177e4SLinus Torvalds { 39348687b63aSAl Viro __be32 *p; 39351da177e4SLinus Torvalds int status = 0; 39361da177e4SLinus Torvalds 39371da177e4SLinus Torvalds *res = 0; 39381da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39391da177e4SLinus Torvalds return -EIO; 39401da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3941c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3942c0eae66eSBenny Halevy if (unlikely(!p)) 3943c0eae66eSBenny Halevy goto out_overflow; 3944cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39451da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 39461da177e4SLinus Torvalds } 39473110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 39481da177e4SLinus Torvalds return status; 3949c0eae66eSBenny Halevy out_overflow: 3950c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3951c0eae66eSBenny Halevy return -EIO; 39521da177e4SLinus Torvalds } 39531da177e4SLinus Torvalds 39541da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39551da177e4SLinus Torvalds { 39568687b63aSAl Viro __be32 *p; 39571da177e4SLinus Torvalds int status = 0; 39581da177e4SLinus Torvalds 39591da177e4SLinus Torvalds *res = 0; 39601da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 39611da177e4SLinus Torvalds return -EIO; 39621da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 3963c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3964c0eae66eSBenny Halevy if (unlikely(!p)) 3965c0eae66eSBenny Halevy goto out_overflow; 3966cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39671da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 39681da177e4SLinus Torvalds } 39693110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 39701da177e4SLinus Torvalds return status; 3971c0eae66eSBenny Halevy out_overflow: 3972c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3973c0eae66eSBenny Halevy return -EIO; 39741da177e4SLinus Torvalds } 39751da177e4SLinus Torvalds 39761da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 39771da177e4SLinus Torvalds { 39788687b63aSAl Viro __be32 *p; 3979409924e4STrond Myklebust int ret = 0; 39801da177e4SLinus Torvalds 39811da177e4SLinus Torvalds *used = 0; 39821da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 39831da177e4SLinus Torvalds return -EIO; 39841da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 3985c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3986c0eae66eSBenny Halevy if (unlikely(!p)) 3987c0eae66eSBenny Halevy goto out_overflow; 3988cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 39891da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 3990409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 39911da177e4SLinus Torvalds } 39923110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 39931da177e4SLinus Torvalds (unsigned long long)*used); 3994409924e4STrond Myklebust return ret; 3995c0eae66eSBenny Halevy out_overflow: 3996c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3997c0eae66eSBenny Halevy return -EIO; 39981da177e4SLinus Torvalds } 39991da177e4SLinus Torvalds 40001da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40011da177e4SLinus Torvalds { 40028687b63aSAl Viro __be32 *p; 40031da177e4SLinus Torvalds uint64_t sec; 40041da177e4SLinus Torvalds uint32_t nsec; 40051da177e4SLinus Torvalds 4006c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4007c0eae66eSBenny Halevy if (unlikely(!p)) 4008c0eae66eSBenny Halevy goto out_overflow; 40093ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 4010cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 40111da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40121da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40131da177e4SLinus Torvalds return 0; 4014c0eae66eSBenny Halevy out_overflow: 4015c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4016c0eae66eSBenny Halevy return -EIO; 40171da177e4SLinus Torvalds } 40181da177e4SLinus Torvalds 40191da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40201da177e4SLinus Torvalds { 40211da177e4SLinus Torvalds int status = 0; 40221da177e4SLinus Torvalds 40231da177e4SLinus Torvalds time->tv_sec = 0; 40241da177e4SLinus Torvalds time->tv_nsec = 0; 40251da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40261da177e4SLinus Torvalds return -EIO; 40271da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40281da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4029409924e4STrond Myklebust if (status == 0) 4030409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40311da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40321da177e4SLinus Torvalds } 40333110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40341da177e4SLinus Torvalds return status; 40351da177e4SLinus Torvalds } 40361da177e4SLinus Torvalds 40371da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40381da177e4SLinus Torvalds { 40391da177e4SLinus Torvalds int status = 0; 40401da177e4SLinus Torvalds 40411da177e4SLinus Torvalds time->tv_sec = 0; 40421da177e4SLinus Torvalds time->tv_nsec = 0; 40431da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 40441da177e4SLinus Torvalds return -EIO; 40451da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 40461da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4047409924e4STrond Myklebust if (status == 0) 4048409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 40491da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 40501da177e4SLinus Torvalds } 40513110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 40521da177e4SLinus Torvalds return status; 40531da177e4SLinus Torvalds } 40541da177e4SLinus Torvalds 405555b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 405655b6e774SRicardo Labiaga struct timespec *time) 405755b6e774SRicardo Labiaga { 405855b6e774SRicardo Labiaga int status = 0; 405955b6e774SRicardo Labiaga 406055b6e774SRicardo Labiaga time->tv_sec = 0; 406155b6e774SRicardo Labiaga time->tv_nsec = 0; 406255b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 406355b6e774SRicardo Labiaga return -EIO; 406455b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 406555b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 406655b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 406755b6e774SRicardo Labiaga } 406855b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 406955b6e774SRicardo Labiaga (long)time->tv_nsec); 407055b6e774SRicardo Labiaga return status; 407155b6e774SRicardo Labiaga } 407255b6e774SRicardo Labiaga 40731da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40741da177e4SLinus Torvalds { 40751da177e4SLinus Torvalds int status = 0; 40761da177e4SLinus Torvalds 40771da177e4SLinus Torvalds time->tv_sec = 0; 40781da177e4SLinus Torvalds time->tv_nsec = 0; 40791da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 40801da177e4SLinus Torvalds return -EIO; 40811da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 40821da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4083409924e4STrond Myklebust if (status == 0) 4084409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 40851da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 40861da177e4SLinus Torvalds } 40873110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 40881da177e4SLinus Torvalds return status; 40891da177e4SLinus Torvalds } 40901da177e4SLinus Torvalds 40918687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 40921da177e4SLinus Torvalds { 40931da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 40941da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 40951da177e4SLinus Torvalds 40961da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4097fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4098fe82a183SChuck Lever "%u %c %u\n", 40993110ff80SHarvey Harrison __func__, 41001da177e4SLinus Torvalds attrwords << 2, 41011da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 41021da177e4SLinus Torvalds nwords << 2); 41031da177e4SLinus Torvalds return -EIO; 41041da177e4SLinus Torvalds } 41051da177e4SLinus Torvalds return 0; 41061da177e4SLinus Torvalds } 41071da177e4SLinus Torvalds 41081da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41091da177e4SLinus Torvalds { 41108687b63aSAl Viro __be32 *p; 41111da177e4SLinus Torvalds 4112c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4113c0eae66eSBenny Halevy if (unlikely(!p)) 4114c0eae66eSBenny Halevy goto out_overflow; 41156f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 41163ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4117cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 41181da177e4SLinus Torvalds return 0; 4119c0eae66eSBenny Halevy out_overflow: 4120c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4121c0eae66eSBenny Halevy return -EIO; 41221da177e4SLinus Torvalds } 41231da177e4SLinus Torvalds 41241da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 41251da177e4SLinus Torvalds { 41268687b63aSAl Viro __be32 *p; 41271da177e4SLinus Torvalds uint32_t supp, acc; 41281da177e4SLinus Torvalds int status; 41291da177e4SLinus Torvalds 41301da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41311da177e4SLinus Torvalds if (status) 41321da177e4SLinus Torvalds return status; 4133c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4134c0eae66eSBenny Halevy if (unlikely(!p)) 4135c0eae66eSBenny Halevy goto out_overflow; 41366f723f77SBenny Halevy supp = be32_to_cpup(p++); 4137cccddf4fSBenny Halevy acc = be32_to_cpup(p); 41381da177e4SLinus Torvalds access->supported = supp; 41391da177e4SLinus Torvalds access->access = acc; 41401da177e4SLinus Torvalds return 0; 4141c0eae66eSBenny Halevy out_overflow: 4142c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4143c0eae66eSBenny Halevy return -EIO; 41441da177e4SLinus Torvalds } 41451da177e4SLinus Torvalds 414607d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 41471da177e4SLinus Torvalds { 41488687b63aSAl Viro __be32 *p; 414907d30434SBenny Halevy 415007d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 415107d30434SBenny Halevy if (likely(p)) { 415207d30434SBenny Halevy memcpy(buf, p, len); 415307d30434SBenny Halevy return 0; 415407d30434SBenny Halevy } 415507d30434SBenny Halevy print_overflow_msg(__func__, xdr); 415607d30434SBenny Halevy return -EIO; 415707d30434SBenny Halevy } 415807d30434SBenny Halevy 415907d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 416007d30434SBenny Halevy { 416107d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 41621da177e4SLinus Torvalds } 41631da177e4SLinus Torvalds 41641da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 41651da177e4SLinus Torvalds { 41661da177e4SLinus Torvalds int status; 41671da177e4SLinus Torvalds 41681da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4169c1d51931STrond Myklebust if (status != -EIO) 4170c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 417107d30434SBenny Halevy if (!status) 417207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 41731da177e4SLinus Torvalds return status; 41741da177e4SLinus Torvalds } 41751da177e4SLinus Torvalds 4176db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4177db942bbdSBenny Halevy { 4178db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 41791da177e4SLinus Torvalds } 41801da177e4SLinus Torvalds 41811da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 41821da177e4SLinus Torvalds { 41831da177e4SLinus Torvalds int status; 41841da177e4SLinus Torvalds 41851da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4186db942bbdSBenny Halevy if (!status) 4187db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 41881da177e4SLinus Torvalds return status; 41891da177e4SLinus Torvalds } 41901da177e4SLinus Torvalds 41911da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41921da177e4SLinus Torvalds { 41938687b63aSAl Viro __be32 *p; 41941da177e4SLinus Torvalds uint32_t bmlen; 41951da177e4SLinus Torvalds int status; 41961da177e4SLinus Torvalds 41971da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 41981da177e4SLinus Torvalds if (status) 41991da177e4SLinus Torvalds return status; 42001da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 42011da177e4SLinus Torvalds return status; 4202c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4203c0eae66eSBenny Halevy if (unlikely(!p)) 4204c0eae66eSBenny Halevy goto out_overflow; 4205cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4206c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4207c0eae66eSBenny Halevy if (likely(p)) 42081da177e4SLinus Torvalds return 0; 4209c0eae66eSBenny Halevy out_overflow: 4210c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4211c0eae66eSBenny Halevy return -EIO; 42121da177e4SLinus Torvalds } 42131da177e4SLinus Torvalds 42141da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 42151da177e4SLinus Torvalds { 42168687b63aSAl Viro __be32 *savep; 4217dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42181da177e4SLinus Torvalds int status; 42191da177e4SLinus Torvalds 42201da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42211da177e4SLinus Torvalds goto xdr_error; 42221da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42231da177e4SLinus Torvalds goto xdr_error; 42241da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42251da177e4SLinus Torvalds goto xdr_error; 42261da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42271da177e4SLinus Torvalds goto xdr_error; 42281da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42291da177e4SLinus Torvalds goto xdr_error; 42301da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 42311da177e4SLinus Torvalds goto xdr_error; 42321da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 42331da177e4SLinus Torvalds goto xdr_error; 42341da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42351da177e4SLinus Torvalds xdr_error: 42363110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42371da177e4SLinus Torvalds return status; 42381da177e4SLinus Torvalds } 42391da177e4SLinus Torvalds 42401da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 42411da177e4SLinus Torvalds { 42428687b63aSAl Viro __be32 *savep; 4243dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42441da177e4SLinus Torvalds int status; 42451da177e4SLinus Torvalds 42461da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42471da177e4SLinus Torvalds goto xdr_error; 42481da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42491da177e4SLinus Torvalds goto xdr_error; 42501da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42511da177e4SLinus Torvalds goto xdr_error; 42521da177e4SLinus Torvalds 42531da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 42541da177e4SLinus Torvalds goto xdr_error; 42551da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 42561da177e4SLinus Torvalds goto xdr_error; 42571da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 42581da177e4SLinus Torvalds goto xdr_error; 42591da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 42601da177e4SLinus Torvalds goto xdr_error; 42611da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 42621da177e4SLinus Torvalds goto xdr_error; 42631da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 42641da177e4SLinus Torvalds goto xdr_error; 42651da177e4SLinus Torvalds 42661da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42671da177e4SLinus Torvalds xdr_error: 42683110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42691da177e4SLinus Torvalds return status; 42701da177e4SLinus Torvalds } 42711da177e4SLinus Torvalds 42721da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 42731da177e4SLinus Torvalds { 42748687b63aSAl Viro __be32 *savep; 4275dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42761da177e4SLinus Torvalds int status; 42771da177e4SLinus Torvalds 42781da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42791da177e4SLinus Torvalds goto xdr_error; 42801da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42811da177e4SLinus Torvalds goto xdr_error; 42821da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42831da177e4SLinus Torvalds goto xdr_error; 42841da177e4SLinus Torvalds 42851da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 42861da177e4SLinus Torvalds goto xdr_error; 42871da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 42881da177e4SLinus Torvalds goto xdr_error; 42891da177e4SLinus Torvalds 42901da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42911da177e4SLinus Torvalds xdr_error: 42923110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42931da177e4SLinus Torvalds return status; 42941da177e4SLinus Torvalds } 42951da177e4SLinus Torvalds 4296ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4297ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 42986926afd1STrond Myklebust const struct nfs_server *server) 42991da177e4SLinus Torvalds { 4300bca79478STrond Myklebust int status; 4301bca79478STrond Myklebust umode_t fmode = 0; 4302ae42c70aSBryan Schumaker uint32_t type; 4303ee7b75fcSTrond Myklebust int32_t err; 43041da177e4SLinus Torvalds 4305f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4306f26c7a78STrond Myklebust if (status < 0) 43071da177e4SLinus Torvalds goto xdr_error; 4308409924e4STrond Myklebust fattr->mode = 0; 4309409924e4STrond Myklebust if (status != 0) { 4310409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4311409924e4STrond Myklebust fattr->valid |= status; 4312409924e4STrond Myklebust } 43131da177e4SLinus Torvalds 4314f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4315f26c7a78STrond Myklebust if (status < 0) 43161da177e4SLinus Torvalds goto xdr_error; 4317409924e4STrond Myklebust fattr->valid |= status; 4318f26c7a78STrond Myklebust 4319f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4320f26c7a78STrond Myklebust if (status < 0) 43211da177e4SLinus Torvalds goto xdr_error; 4322409924e4STrond Myklebust fattr->valid |= status; 4323f26c7a78STrond Myklebust 4324f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4325f26c7a78STrond Myklebust if (status < 0) 43261da177e4SLinus Torvalds goto xdr_error; 4327409924e4STrond Myklebust fattr->valid |= status; 4328f26c7a78STrond Myklebust 4329ee7b75fcSTrond Myklebust err = 0; 4330ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4331ae42c70aSBryan Schumaker if (status < 0) 4332ae42c70aSBryan Schumaker goto xdr_error; 4333ee7b75fcSTrond Myklebust if (err == -NFS4ERR_WRONGSEC) 4334ee7b75fcSTrond Myklebust nfs_fixup_secinfo_attributes(fattr, fh); 4335ae42c70aSBryan Schumaker 4336ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4337ae42c70aSBryan Schumaker if (status < 0) 4338ae42c70aSBryan Schumaker goto xdr_error; 4339ae42c70aSBryan Schumaker 4340f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4341f26c7a78STrond Myklebust if (status < 0) 43421da177e4SLinus Torvalds goto xdr_error; 4343409924e4STrond Myklebust fattr->valid |= status; 4344f26c7a78STrond Myklebust 4345f26c7a78STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, container_of(fattr, 43467aaa0b3bSManoj Naik struct nfs4_fs_locations, 4347f26c7a78STrond Myklebust fattr)); 4348f26c7a78STrond Myklebust if (status < 0) 4349683b57b4STrond Myklebust goto xdr_error; 4350409924e4STrond Myklebust fattr->valid |= status; 4351f26c7a78STrond Myklebust 4352f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4353f26c7a78STrond Myklebust if (status < 0) 43541da177e4SLinus Torvalds goto xdr_error; 4355409924e4STrond Myklebust if (status != 0) { 43561da177e4SLinus Torvalds fattr->mode |= fmode; 4357409924e4STrond Myklebust fattr->valid |= status; 4358409924e4STrond Myklebust } 4359f26c7a78STrond Myklebust 4360f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4361f26c7a78STrond Myklebust if (status < 0) 43621da177e4SLinus Torvalds goto xdr_error; 4363409924e4STrond Myklebust fattr->valid |= status; 4364f26c7a78STrond Myklebust 43656926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4366f26c7a78STrond Myklebust if (status < 0) 43671da177e4SLinus Torvalds goto xdr_error; 4368409924e4STrond Myklebust fattr->valid |= status; 4369f26c7a78STrond Myklebust 43706926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4371f26c7a78STrond Myklebust if (status < 0) 43721da177e4SLinus Torvalds goto xdr_error; 4373409924e4STrond Myklebust fattr->valid |= status; 4374f26c7a78STrond Myklebust 4375f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4376f26c7a78STrond Myklebust if (status < 0) 43771da177e4SLinus Torvalds goto xdr_error; 4378409924e4STrond Myklebust fattr->valid |= status; 4379f26c7a78STrond Myklebust 4380f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4381f26c7a78STrond Myklebust if (status < 0) 43821da177e4SLinus Torvalds goto xdr_error; 4383409924e4STrond Myklebust fattr->valid |= status; 4384f26c7a78STrond Myklebust 4385f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4386f26c7a78STrond Myklebust if (status < 0) 43871da177e4SLinus Torvalds goto xdr_error; 4388409924e4STrond Myklebust fattr->valid |= status; 4389f26c7a78STrond Myklebust 4390f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4391f26c7a78STrond Myklebust if (status < 0) 43921da177e4SLinus Torvalds goto xdr_error; 4393409924e4STrond Myklebust fattr->valid |= status; 4394f26c7a78STrond Myklebust 4395f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4396f26c7a78STrond Myklebust if (status < 0) 43971da177e4SLinus Torvalds goto xdr_error; 4398409924e4STrond Myklebust fattr->valid |= status; 4399f26c7a78STrond Myklebust 440028331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4401f26c7a78STrond Myklebust if (status < 0) 440299baf625SManoj Naik goto xdr_error; 4403409924e4STrond Myklebust fattr->valid |= status; 4404f26c7a78STrond Myklebust 4405ae42c70aSBryan Schumaker xdr_error: 4406ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4407ae42c70aSBryan Schumaker return status; 4408ae42c70aSBryan Schumaker } 4409ae42c70aSBryan Schumaker 4410ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 44116926afd1STrond Myklebust struct nfs_fh *fh, const struct nfs_server *server) 4412ae42c70aSBryan Schumaker { 4413ae42c70aSBryan Schumaker __be32 *savep; 4414ae42c70aSBryan Schumaker uint32_t attrlen, 4415dae100c2SFred Isaman bitmap[3] = {0}; 4416ae42c70aSBryan Schumaker int status; 4417ae42c70aSBryan Schumaker 4418ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4419ae42c70aSBryan Schumaker if (status < 0) 4420ae42c70aSBryan Schumaker goto xdr_error; 4421ae42c70aSBryan Schumaker 4422ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4423ae42c70aSBryan Schumaker if (status < 0) 4424ae42c70aSBryan Schumaker goto xdr_error; 4425ae42c70aSBryan Schumaker 4426ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4427ae42c70aSBryan Schumaker if (status < 0) 4428ae42c70aSBryan Schumaker goto xdr_error; 4429ae42c70aSBryan Schumaker 44306926afd1STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server); 4431ae42c70aSBryan Schumaker if (status < 0) 4432ae42c70aSBryan Schumaker goto xdr_error; 4433ae42c70aSBryan Schumaker 4434f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 44351da177e4SLinus Torvalds xdr_error: 44363110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 44371da177e4SLinus Torvalds return status; 44381da177e4SLinus Torvalds } 44391da177e4SLinus Torvalds 4440ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 44416926afd1STrond Myklebust const struct nfs_server *server) 4442ae42c70aSBryan Schumaker { 44436926afd1STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, server); 4444ae42c70aSBryan Schumaker } 44451da177e4SLinus Torvalds 4446504913fbSAndy Adamson /* 4447504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4448504913fbSAndy Adamson * one layout driver per file system. 4449504913fbSAndy Adamson */ 4450504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4451504913fbSAndy Adamson uint32_t *layouttype) 4452504913fbSAndy Adamson { 4453504913fbSAndy Adamson uint32_t *p; 4454504913fbSAndy Adamson int num; 4455504913fbSAndy Adamson 4456504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4457504913fbSAndy Adamson if (unlikely(!p)) 4458504913fbSAndy Adamson goto out_overflow; 4459504913fbSAndy Adamson num = be32_to_cpup(p); 4460504913fbSAndy Adamson 4461504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4462504913fbSAndy Adamson if (num == 0) { 4463504913fbSAndy Adamson *layouttype = 0; 4464504913fbSAndy Adamson return 0; 4465504913fbSAndy Adamson } 4466504913fbSAndy Adamson if (num > 1) 4467504913fbSAndy Adamson printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers " 4468504913fbSAndy Adamson "per filesystem not supported\n", __func__); 4469504913fbSAndy Adamson 4470504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4471504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4472504913fbSAndy Adamson if (unlikely(!p)) 4473504913fbSAndy Adamson goto out_overflow; 4474504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4475504913fbSAndy Adamson return 0; 4476504913fbSAndy Adamson out_overflow: 4477504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4478504913fbSAndy Adamson return -EIO; 4479504913fbSAndy Adamson } 4480504913fbSAndy Adamson 4481504913fbSAndy Adamson /* 4482504913fbSAndy Adamson * The type of file system exported. 4483504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4484504913fbSAndy Adamson */ 4485504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4486504913fbSAndy Adamson uint32_t *layouttype) 4487504913fbSAndy Adamson { 4488504913fbSAndy Adamson int status = 0; 4489504913fbSAndy Adamson 4490504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4491504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4492504913fbSAndy Adamson return -EIO; 4493504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4494504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4495504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4496504913fbSAndy Adamson } else 4497504913fbSAndy Adamson *layouttype = 0; 4498504913fbSAndy Adamson return status; 4499504913fbSAndy Adamson } 4500504913fbSAndy Adamson 4501dae100c2SFred Isaman /* 4502dae100c2SFred Isaman * The prefered block size for layout directed io 4503dae100c2SFred Isaman */ 4504dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4505dae100c2SFred Isaman uint32_t *res) 4506dae100c2SFred Isaman { 4507dae100c2SFred Isaman __be32 *p; 4508dae100c2SFred Isaman 4509dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4510dae100c2SFred Isaman *res = 0; 4511dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4512dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4513dae100c2SFred Isaman if (unlikely(!p)) { 4514dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4515dae100c2SFred Isaman return -EIO; 4516dae100c2SFred Isaman } 4517dae100c2SFred Isaman *res = be32_to_cpup(p); 4518dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4519dae100c2SFred Isaman } 4520dae100c2SFred Isaman return 0; 4521dae100c2SFred Isaman } 4522dae100c2SFred Isaman 45231da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 45241da177e4SLinus Torvalds { 45258687b63aSAl Viro __be32 *savep; 4526dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 45271da177e4SLinus Torvalds int status; 45281da177e4SLinus Torvalds 45291da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 45301da177e4SLinus Torvalds goto xdr_error; 45311da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 45321da177e4SLinus Torvalds goto xdr_error; 45331da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 45341da177e4SLinus Torvalds goto xdr_error; 45351da177e4SLinus Torvalds 45361da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 45371da177e4SLinus Torvalds 45381da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 45391da177e4SLinus Torvalds goto xdr_error; 45401da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 45411da177e4SLinus Torvalds goto xdr_error; 45421da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 45431da177e4SLinus Torvalds goto xdr_error; 45441da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 45451da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 45461da177e4SLinus Torvalds goto xdr_error; 45471da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 454855b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 454955b6e774SRicardo Labiaga if (status != 0) 455055b6e774SRicardo Labiaga goto xdr_error; 4551504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4552504913fbSAndy Adamson if (status != 0) 4553504913fbSAndy Adamson goto xdr_error; 4554dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4555dae100c2SFred Isaman if (status) 4556dae100c2SFred Isaman goto xdr_error; 45571da177e4SLinus Torvalds 45581da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 45591da177e4SLinus Torvalds xdr_error: 45603110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 45611da177e4SLinus Torvalds return status; 45621da177e4SLinus Torvalds } 45631da177e4SLinus Torvalds 45641da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 45651da177e4SLinus Torvalds { 45668687b63aSAl Viro __be32 *p; 45671da177e4SLinus Torvalds uint32_t len; 45681da177e4SLinus Torvalds int status; 45691da177e4SLinus Torvalds 45709936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 45719936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 45729936781dSTrond Myklebust 45731da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 45741da177e4SLinus Torvalds if (status) 45751da177e4SLinus Torvalds return status; 45761da177e4SLinus Torvalds 4577c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4578c0eae66eSBenny Halevy if (unlikely(!p)) 4579c0eae66eSBenny Halevy goto out_overflow; 4580cccddf4fSBenny Halevy len = be32_to_cpup(p); 45811da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 45821da177e4SLinus Torvalds return -EIO; 45831da177e4SLinus Torvalds fh->size = len; 4584c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4585c0eae66eSBenny Halevy if (unlikely(!p)) 4586c0eae66eSBenny Halevy goto out_overflow; 458799398d06SBenny Halevy memcpy(fh->data, p, len); 45881da177e4SLinus Torvalds return 0; 4589c0eae66eSBenny Halevy out_overflow: 4590c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4591c0eae66eSBenny Halevy return -EIO; 45921da177e4SLinus Torvalds } 45931da177e4SLinus Torvalds 45941da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 45951da177e4SLinus Torvalds { 45961da177e4SLinus Torvalds int status; 45971da177e4SLinus Torvalds 45981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 45991da177e4SLinus Torvalds if (status) 46001da177e4SLinus Torvalds return status; 46011da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 46021da177e4SLinus Torvalds } 46031da177e4SLinus Torvalds 46041da177e4SLinus Torvalds /* 46051da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 46061da177e4SLinus Torvalds */ 4607911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 46081da177e4SLinus Torvalds { 4609911d1aafSTrond Myklebust uint64_t offset, length, clientid; 46108687b63aSAl Viro __be32 *p; 4611911d1aafSTrond Myklebust uint32_t namelen, type; 46121da177e4SLinus Torvalds 4613babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4614c0eae66eSBenny Halevy if (unlikely(!p)) 4615c0eae66eSBenny Halevy goto out_overflow; 4616babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 46173ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4618babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4619babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4620911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4621911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4622911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4623911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4624911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4625911d1aafSTrond Myklebust if (type & 1) 4626911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4627911d1aafSTrond Myklebust fl->fl_pid = 0; 4628911d1aafSTrond Myklebust } 4629babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4630babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4631babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4632c0eae66eSBenny Halevy if (likely(p)) 46331da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4634c0eae66eSBenny Halevy out_overflow: 4635c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4636c0eae66eSBenny Halevy return -EIO; 46371da177e4SLinus Torvalds } 46381da177e4SLinus Torvalds 4639911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 46401da177e4SLinus Torvalds { 46411da177e4SLinus Torvalds int status; 46421da177e4SLinus Torvalds 46431da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4644c1d51931STrond Myklebust if (status == -EIO) 4645c1d51931STrond Myklebust goto out; 46461da177e4SLinus Torvalds if (status == 0) { 464707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 464807d30434SBenny Halevy if (unlikely(status)) 464907d30434SBenny Halevy goto out; 46501da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4651c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4652c1d51931STrond Myklebust if (res->open_seqid != NULL) 4653c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4654c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4655c1d51931STrond Myklebust out: 46561da177e4SLinus Torvalds return status; 46571da177e4SLinus Torvalds } 46581da177e4SLinus Torvalds 4659911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 46601da177e4SLinus Torvalds { 46611da177e4SLinus Torvalds int status; 46621da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 46631da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4664911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 46651da177e4SLinus Torvalds return status; 46661da177e4SLinus Torvalds } 46671da177e4SLinus Torvalds 4668911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 46691da177e4SLinus Torvalds { 46701da177e4SLinus Torvalds int status; 46711da177e4SLinus Torvalds 46721da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4673c1d51931STrond Myklebust if (status != -EIO) 4674c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 467507d30434SBenny Halevy if (status == 0) 467607d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 46771da177e4SLinus Torvalds return status; 46781da177e4SLinus Torvalds } 46791da177e4SLinus Torvalds 4680d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4681d3c7b7ccSTrond Myklebust { 4682d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4683d3c7b7ccSTrond Myklebust } 4684d3c7b7ccSTrond Myklebust 46851da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 46861da177e4SLinus Torvalds { 46871da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 46881da177e4SLinus Torvalds } 46891da177e4SLinus Torvalds 46901da177e4SLinus Torvalds /* This is too sick! */ 46911da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 46921da177e4SLinus Torvalds { 46938687b63aSAl Viro __be32 *p; 46941da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 46951da177e4SLinus Torvalds 4696c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4697c0eae66eSBenny Halevy if (unlikely(!p)) 4698c0eae66eSBenny Halevy goto out_overflow; 46996f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 47001da177e4SLinus Torvalds switch (limit_type) { 47011da177e4SLinus Torvalds case 1: 4702cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 47031da177e4SLinus Torvalds break; 47041da177e4SLinus Torvalds case 2: 47056f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4706cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 47071da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 47081da177e4SLinus Torvalds } 47091da177e4SLinus Torvalds return 0; 4710c0eae66eSBenny Halevy out_overflow: 4711c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4712c0eae66eSBenny Halevy return -EIO; 47131da177e4SLinus Torvalds } 47141da177e4SLinus Torvalds 47151da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 47161da177e4SLinus Torvalds { 47178687b63aSAl Viro __be32 *p; 47181da177e4SLinus Torvalds uint32_t delegation_type; 471907d30434SBenny Halevy int status; 47201da177e4SLinus Torvalds 4721c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4722c0eae66eSBenny Halevy if (unlikely(!p)) 4723c0eae66eSBenny Halevy goto out_overflow; 4724cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 47251da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 47261da177e4SLinus Torvalds res->delegation_type = 0; 47271da177e4SLinus Torvalds return 0; 47281da177e4SLinus Torvalds } 472907d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 473007d30434SBenny Halevy if (unlikely(status)) 473107d30434SBenny Halevy return status; 4732c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4733c0eae66eSBenny Halevy if (unlikely(!p)) 4734c0eae66eSBenny Halevy goto out_overflow; 4735cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 473605d564feSAndy Adamson 47371da177e4SLinus Torvalds switch (delegation_type) { 47381da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 47391da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 47401da177e4SLinus Torvalds break; 47411da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 47421da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 47431da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 47441da177e4SLinus Torvalds return -EIO; 47451da177e4SLinus Torvalds } 47467539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4747c0eae66eSBenny Halevy out_overflow: 4748c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4749c0eae66eSBenny Halevy return -EIO; 47501da177e4SLinus Torvalds } 47511da177e4SLinus Torvalds 47521da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 47531da177e4SLinus Torvalds { 47548687b63aSAl Viro __be32 *p; 4755aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 47561da177e4SLinus Torvalds int status; 47571da177e4SLinus Torvalds 47581da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4759c1d51931STrond Myklebust if (status != -EIO) 4760c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 476107d30434SBenny Halevy if (!status) 476207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 476307d30434SBenny Halevy if (unlikely(status)) 47641da177e4SLinus Torvalds return status; 47651da177e4SLinus Torvalds 47661da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 47671da177e4SLinus Torvalds 4768c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4769c0eae66eSBenny Halevy if (unlikely(!p)) 4770c0eae66eSBenny Halevy goto out_overflow; 47716f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4772cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 47731da177e4SLinus Torvalds if (bmlen > 10) 47741da177e4SLinus Torvalds goto xdr_error; 47751da177e4SLinus Torvalds 4776c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4777c0eae66eSBenny Halevy if (unlikely(!p)) 4778c0eae66eSBenny Halevy goto out_overflow; 4779aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4780aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 47816f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4782aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4783aa53ed54SJeff Layton res->attrset[i] = 0; 4784aa53ed54SJeff Layton 47851da177e4SLinus Torvalds return decode_delegation(xdr, res); 47861da177e4SLinus Torvalds xdr_error: 47873110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 47881da177e4SLinus Torvalds return -EIO; 4789c0eae66eSBenny Halevy out_overflow: 4790c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4791c0eae66eSBenny Halevy return -EIO; 47921da177e4SLinus Torvalds } 47931da177e4SLinus Torvalds 47941da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 47951da177e4SLinus Torvalds { 47961da177e4SLinus Torvalds int status; 47971da177e4SLinus Torvalds 47981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4799c1d51931STrond Myklebust if (status != -EIO) 4800c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 480107d30434SBenny Halevy if (!status) 480207d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48031da177e4SLinus Torvalds return status; 48041da177e4SLinus Torvalds } 48051da177e4SLinus Torvalds 48061da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 48071da177e4SLinus Torvalds { 48081da177e4SLinus Torvalds int status; 48091da177e4SLinus Torvalds 48101da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4811c1d51931STrond Myklebust if (status != -EIO) 4812c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 481307d30434SBenny Halevy if (!status) 481407d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48151da177e4SLinus Torvalds return status; 48161da177e4SLinus Torvalds } 48171da177e4SLinus Torvalds 48181da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 48191da177e4SLinus Torvalds { 48201da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 48211da177e4SLinus Torvalds } 48221da177e4SLinus Torvalds 48231da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 48241da177e4SLinus Torvalds { 48251da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 48261da177e4SLinus Torvalds } 48271da177e4SLinus Torvalds 48281da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 48291da177e4SLinus Torvalds { 48301da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 48318687b63aSAl Viro __be32 *p; 48321da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 48331da177e4SLinus Torvalds int status; 48341da177e4SLinus Torvalds 48351da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 48361da177e4SLinus Torvalds if (status) 48371da177e4SLinus Torvalds return status; 4838c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4839c0eae66eSBenny Halevy if (unlikely(!p)) 4840c0eae66eSBenny Halevy goto out_overflow; 48416f723f77SBenny Halevy eof = be32_to_cpup(p++); 4842cccddf4fSBenny Halevy count = be32_to_cpup(p); 48438111f373SChuck Lever hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 48441da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 48451da177e4SLinus Torvalds if (count > recvd) { 4846fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 48471da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 48481da177e4SLinus Torvalds count = recvd; 48491da177e4SLinus Torvalds eof = 0; 48501da177e4SLinus Torvalds } 48511da177e4SLinus Torvalds xdr_read_pages(xdr, count); 48521da177e4SLinus Torvalds res->eof = eof; 48531da177e4SLinus Torvalds res->count = count; 48541da177e4SLinus Torvalds return 0; 4855c0eae66eSBenny Halevy out_overflow: 4856c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4857c0eae66eSBenny Halevy return -EIO; 48581da177e4SLinus Torvalds } 48591da177e4SLinus Torvalds 48601da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 48611da177e4SLinus Torvalds { 48621da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 48631da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4864bcecff77SChuck Lever size_t hdrlen; 4865bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 4866bcecff77SChuck Lever int status; 48671da177e4SLinus Torvalds 48681da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4869db942bbdSBenny Halevy if (!status) 4870db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4871db942bbdSBenny Halevy if (unlikely(status)) 48721da177e4SLinus Torvalds return status; 487344109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 487444109241SFred Isaman __func__, 4875eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4876eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4877eadf4598STrond Myklebust 48781da177e4SLinus Torvalds 4879db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 48801da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 48811da177e4SLinus Torvalds if (pglen > recvd) 48821da177e4SLinus Torvalds pglen = recvd; 48831da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 48841da177e4SLinus Torvalds 48857bda2cdfSJeff Layton 4886ac396128STrond Myklebust return pglen; 48871da177e4SLinus Torvalds } 48881da177e4SLinus Torvalds 48891da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 48901da177e4SLinus Torvalds { 48911da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 48921da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4893bcecff77SChuck Lever size_t hdrlen; 4894bcecff77SChuck Lever u32 len, recvd; 48958687b63aSAl Viro __be32 *p; 48961da177e4SLinus Torvalds int status; 48971da177e4SLinus Torvalds 48981da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 48991da177e4SLinus Torvalds if (status) 49001da177e4SLinus Torvalds return status; 49011da177e4SLinus Torvalds 49021da177e4SLinus Torvalds /* Convert length of symlink */ 4903c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4904c0eae66eSBenny Halevy if (unlikely(!p)) 4905c0eae66eSBenny Halevy goto out_overflow; 4906cccddf4fSBenny Halevy len = be32_to_cpup(p); 49071da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4908fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49091da177e4SLinus Torvalds return -ENAMETOOLONG; 49101da177e4SLinus Torvalds } 49111da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 49121da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 49131da177e4SLinus Torvalds if (recvd < len) { 4914fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 49151da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 49161da177e4SLinus Torvalds return -EIO; 49171da177e4SLinus Torvalds } 49181da177e4SLinus Torvalds xdr_read_pages(xdr, len); 49191da177e4SLinus Torvalds /* 49201da177e4SLinus Torvalds * The XDR encode routine has set things up so that 49211da177e4SLinus Torvalds * the link text will be copied directly into the 49221da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 49231da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 49241da177e4SLinus Torvalds * null-termination). 49251da177e4SLinus Torvalds */ 4926b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 49271da177e4SLinus Torvalds return 0; 4928c0eae66eSBenny Halevy out_overflow: 4929c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4930c0eae66eSBenny Halevy return -EIO; 49311da177e4SLinus Torvalds } 49321da177e4SLinus Torvalds 49331da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 49341da177e4SLinus Torvalds { 49351da177e4SLinus Torvalds int status; 49361da177e4SLinus Torvalds 49371da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 49381da177e4SLinus Torvalds if (status) 49391da177e4SLinus Torvalds goto out; 49401da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 49411da177e4SLinus Torvalds out: 49421da177e4SLinus Torvalds return status; 49431da177e4SLinus Torvalds } 49441da177e4SLinus Torvalds 49451da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 49461da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 49471da177e4SLinus Torvalds { 49481da177e4SLinus Torvalds int status; 49491da177e4SLinus Torvalds 49501da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 49511da177e4SLinus Torvalds if (status) 49521da177e4SLinus Torvalds goto out; 49531da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 49541da177e4SLinus Torvalds goto out; 49551da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 49561da177e4SLinus Torvalds out: 49571da177e4SLinus Torvalds return status; 49581da177e4SLinus Torvalds } 49591da177e4SLinus Torvalds 49601da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 49611da177e4SLinus Torvalds { 49621da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 49631da177e4SLinus Torvalds } 49641da177e4SLinus Torvalds 496556ae19f3STrond Myklebust static int 496656ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 496756ae19f3STrond Myklebust { 496856ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 496956ae19f3STrond Myklebust } 497056ae19f3STrond Myklebust 4971029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 4972bf118a34SAndy Adamson struct nfs_getaclres *res) 4973029d105eSJ. Bruce Fields { 4974bf118a34SAndy Adamson __be32 *savep, *bm_p; 4975029d105eSJ. Bruce Fields uint32_t attrlen, 4976dae100c2SFred Isaman bitmap[3] = {0}; 4977029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 4978029d105eSJ. Bruce Fields int status; 4979029d105eSJ. Bruce Fields 4980bf118a34SAndy Adamson res->acl_len = 0; 4981029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 4982029d105eSJ. Bruce Fields goto out; 4983bf118a34SAndy Adamson bm_p = xdr->p; 4984029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 4985029d105eSJ. Bruce Fields goto out; 4986029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 4987029d105eSJ. Bruce Fields goto out; 4988029d105eSJ. Bruce Fields 4989029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 4990029d105eSJ. Bruce Fields return -EIO; 4991029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 4992bcecff77SChuck Lever size_t hdrlen; 4993bcecff77SChuck Lever u32 recvd; 4994029d105eSJ. Bruce Fields 4995bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 4996bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 4997bf118a34SAndy Adamson * variable length bitmaps.*/ 4998bf118a34SAndy Adamson xdr->p = bm_p; 4999bf118a34SAndy Adamson res->acl_data_offset = be32_to_cpup(bm_p) + 2; 5000bf118a34SAndy Adamson res->acl_data_offset <<= 2; 5001bf118a34SAndy Adamson 5002029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 5003029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 5004029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 5005bf118a34SAndy Adamson attrlen += res->acl_data_offset; 5006029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 5007029d105eSJ. Bruce Fields if (attrlen > recvd) { 5008bf118a34SAndy Adamson if (res->acl_flags & NFS4_ACL_LEN_REQUEST) { 5009bf118a34SAndy Adamson /* getxattr interface called with a NULL buf */ 5010bf118a34SAndy Adamson res->acl_len = attrlen; 5011bf118a34SAndy Adamson goto out; 5012bf118a34SAndy Adamson } 5013bf118a34SAndy Adamson dprintk("NFS: acl reply: attrlen %u > recvd %u\n", 5014029d105eSJ. Bruce Fields attrlen, recvd); 5015029d105eSJ. Bruce Fields return -EINVAL; 5016029d105eSJ. Bruce Fields } 5017029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 5018bf118a34SAndy Adamson res->acl_len = attrlen; 50198c233cf9SJ. Bruce Fields } else 50208c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5021029d105eSJ. Bruce Fields 5022029d105eSJ. Bruce Fields out: 5023029d105eSJ. Bruce Fields return status; 5024029d105eSJ. Bruce Fields } 5025029d105eSJ. Bruce Fields 50261da177e4SLinus Torvalds static int 50271da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 50281da177e4SLinus Torvalds { 50291da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 50301da177e4SLinus Torvalds } 50311da177e4SLinus Torvalds 50329e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 50331da177e4SLinus Torvalds { 50348687b63aSAl Viro __be32 *p; 50351da177e4SLinus Torvalds uint32_t bmlen; 50361da177e4SLinus Torvalds int status; 50371da177e4SLinus Torvalds 50381da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 50391da177e4SLinus Torvalds if (status) 50401da177e4SLinus Torvalds return status; 5041c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5042c0eae66eSBenny Halevy if (unlikely(!p)) 5043c0eae66eSBenny Halevy goto out_overflow; 5044cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5045c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5046c0eae66eSBenny Halevy if (likely(p)) 50471da177e4SLinus Torvalds return 0; 5048c0eae66eSBenny Halevy out_overflow: 5049c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5050c0eae66eSBenny Halevy return -EIO; 50511da177e4SLinus Torvalds } 50521da177e4SLinus Torvalds 5053bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 50541da177e4SLinus Torvalds { 50558687b63aSAl Viro __be32 *p; 50561da177e4SLinus Torvalds uint32_t opnum; 50571da177e4SLinus Torvalds int32_t nfserr; 50581da177e4SLinus Torvalds 5059c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5060c0eae66eSBenny Halevy if (unlikely(!p)) 5061c0eae66eSBenny Halevy goto out_overflow; 50626f723f77SBenny Halevy opnum = be32_to_cpup(p++); 50631da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5064fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 50651da177e4SLinus Torvalds " %d\n", opnum); 50661da177e4SLinus Torvalds return -EIO; 50671da177e4SLinus Torvalds } 5068cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 50691da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5070c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5071c0eae66eSBenny Halevy if (unlikely(!p)) 5072c0eae66eSBenny Halevy goto out_overflow; 5073bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5074bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 50751da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 50761da177e4SLinus Torvalds uint32_t len; 50771da177e4SLinus Torvalds 50781da177e4SLinus Torvalds /* skip netid string */ 5079c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5080c0eae66eSBenny Halevy if (unlikely(!p)) 5081c0eae66eSBenny Halevy goto out_overflow; 5082cccddf4fSBenny Halevy len = be32_to_cpup(p); 5083c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5084c0eae66eSBenny Halevy if (unlikely(!p)) 5085c0eae66eSBenny Halevy goto out_overflow; 50861da177e4SLinus Torvalds 50871da177e4SLinus Torvalds /* skip uaddr string */ 5088c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5089c0eae66eSBenny Halevy if (unlikely(!p)) 5090c0eae66eSBenny Halevy goto out_overflow; 5091cccddf4fSBenny Halevy len = be32_to_cpup(p); 5092c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5093c0eae66eSBenny Halevy if (unlikely(!p)) 5094c0eae66eSBenny Halevy goto out_overflow; 50951da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 50961da177e4SLinus Torvalds } else 5097856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 50981da177e4SLinus Torvalds 50991da177e4SLinus Torvalds return 0; 5100c0eae66eSBenny Halevy out_overflow: 5101c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5102c0eae66eSBenny Halevy return -EIO; 51031da177e4SLinus Torvalds } 51041da177e4SLinus Torvalds 51051da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51061da177e4SLinus Torvalds { 51071da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51081da177e4SLinus Torvalds } 51091da177e4SLinus Torvalds 51101da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51111da177e4SLinus Torvalds { 51128687b63aSAl Viro __be32 *p; 51131da177e4SLinus Torvalds int status; 51141da177e4SLinus Torvalds 51151da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51161da177e4SLinus Torvalds if (status) 51171da177e4SLinus Torvalds return status; 51181da177e4SLinus Torvalds 5119c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 5120c0eae66eSBenny Halevy if (unlikely(!p)) 5121c0eae66eSBenny Halevy goto out_overflow; 51226f723f77SBenny Halevy res->count = be32_to_cpup(p++); 51236f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 512499398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 51251da177e4SLinus Torvalds return 0; 5126c0eae66eSBenny Halevy out_overflow: 5127c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5128c0eae66eSBenny Halevy return -EIO; 51291da177e4SLinus Torvalds } 51301da177e4SLinus Torvalds 51311da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 51321da177e4SLinus Torvalds { 51331da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 51341da177e4SLinus Torvalds } 51351da177e4SLinus Torvalds 51365a5ea0d4SBryan Schumaker static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) 51375a5ea0d4SBryan Schumaker { 51385a5ea0d4SBryan Schumaker __be32 *p; 51395a5ea0d4SBryan Schumaker 51405a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 51415a5ea0d4SBryan Schumaker if (unlikely(!p)) 51425a5ea0d4SBryan Schumaker goto out_overflow; 51435a5ea0d4SBryan Schumaker flavor->gss.sec_oid4.len = be32_to_cpup(p); 51445a5ea0d4SBryan Schumaker if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) 51455a5ea0d4SBryan Schumaker goto out_err; 51465a5ea0d4SBryan Schumaker 51475a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); 51485a5ea0d4SBryan Schumaker if (unlikely(!p)) 51495a5ea0d4SBryan Schumaker goto out_overflow; 51505a5ea0d4SBryan Schumaker memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); 51515a5ea0d4SBryan Schumaker 51525a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 51535a5ea0d4SBryan Schumaker if (unlikely(!p)) 51545a5ea0d4SBryan Schumaker goto out_overflow; 51555a5ea0d4SBryan Schumaker flavor->gss.qop4 = be32_to_cpup(p++); 51565a5ea0d4SBryan Schumaker flavor->gss.service = be32_to_cpup(p); 51575a5ea0d4SBryan Schumaker 51585a5ea0d4SBryan Schumaker return 0; 51595a5ea0d4SBryan Schumaker 51605a5ea0d4SBryan Schumaker out_overflow: 51615a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 51625a5ea0d4SBryan Schumaker return -EIO; 51635a5ea0d4SBryan Schumaker out_err: 51645a5ea0d4SBryan Schumaker return -EINVAL; 51655a5ea0d4SBryan Schumaker } 51665a5ea0d4SBryan Schumaker 51675a5ea0d4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 51685a5ea0d4SBryan Schumaker { 51695a5ea0d4SBryan Schumaker struct nfs4_secinfo_flavor *sec_flavor; 51705a5ea0d4SBryan Schumaker int status; 51715a5ea0d4SBryan Schumaker __be32 *p; 5172c3dfc280SBryan Schumaker int i, num_flavors; 51735a5ea0d4SBryan Schumaker 51745a5ea0d4SBryan Schumaker status = decode_op_hdr(xdr, OP_SECINFO); 5175613e901eSBryan Schumaker if (status) 5176613e901eSBryan Schumaker goto out; 51775a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 51785a5ea0d4SBryan Schumaker if (unlikely(!p)) 51795a5ea0d4SBryan Schumaker goto out_overflow; 51805a5ea0d4SBryan Schumaker 5181c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5182c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5183c3dfc280SBryan Schumaker 5184c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 51855a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5186c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 51875a5ea0d4SBryan Schumaker break; 51885a5ea0d4SBryan Schumaker 51895a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 51905a5ea0d4SBryan Schumaker if (unlikely(!p)) 51915a5ea0d4SBryan Schumaker goto out_overflow; 51925a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 51935a5ea0d4SBryan Schumaker 51945a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5195613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5196613e901eSBryan Schumaker if (status) 5197613e901eSBryan Schumaker goto out; 51985a5ea0d4SBryan Schumaker } 5199c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52005a5ea0d4SBryan Schumaker } 52015a5ea0d4SBryan Schumaker 5202613e901eSBryan Schumaker out: 5203613e901eSBryan Schumaker return status; 52045a5ea0d4SBryan Schumaker out_overflow: 52055a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52065a5ea0d4SBryan Schumaker return -EIO; 52075a5ea0d4SBryan Schumaker } 52085a5ea0d4SBryan Schumaker 520999fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 521099fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 521199fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 521299fe60d0SBenny Halevy { 521399fe60d0SBenny Halevy __be32 *p; 521499fe60d0SBenny Halevy uint32_t dummy; 52152460ba57SBenny Halevy char *dummy_str; 521699fe60d0SBenny Halevy int status; 521799fe60d0SBenny Halevy struct nfs_client *clp = res->client; 521899fe60d0SBenny Halevy 521999fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 522099fe60d0SBenny Halevy if (status) 522199fe60d0SBenny Halevy return status; 522299fe60d0SBenny Halevy 5223c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5224c0eae66eSBenny Halevy if (unlikely(!p)) 5225c0eae66eSBenny Halevy goto out_overflow; 5226114f64b5SAndy Adamson xdr_decode_hyper(p, &clp->cl_clientid); 5227c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5228c0eae66eSBenny Halevy if (unlikely(!p)) 5229c0eae66eSBenny Halevy goto out_overflow; 52306f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 52316f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 523299fe60d0SBenny Halevy 523399fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5234cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 523599fe60d0SBenny Halevy if (dummy != SP4_NONE) 523699fe60d0SBenny Halevy return -EIO; 523799fe60d0SBenny Halevy 523899fe60d0SBenny Halevy /* Throw away minor_id */ 5239c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5240c0eae66eSBenny Halevy if (unlikely(!p)) 5241c0eae66eSBenny Halevy goto out_overflow; 524299fe60d0SBenny Halevy 524399fe60d0SBenny Halevy /* Throw away Major id */ 52442460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 52452460ba57SBenny Halevy if (unlikely(status)) 52462460ba57SBenny Halevy return status; 524799fe60d0SBenny Halevy 524878fe0f41SWeston Andros Adamson /* Save server_scope */ 52492460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 52502460ba57SBenny Halevy if (unlikely(status)) 52512460ba57SBenny Halevy return status; 525299fe60d0SBenny Halevy 525378fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 525478fe0f41SWeston Andros Adamson return -EIO; 525578fe0f41SWeston Andros Adamson 525678fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 525778fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 525878fe0f41SWeston Andros Adamson 525999fe60d0SBenny Halevy /* Throw away Implementation id array */ 52602460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 52612460ba57SBenny Halevy if (unlikely(status)) 52622460ba57SBenny Halevy return status; 526399fe60d0SBenny Halevy 526499fe60d0SBenny Halevy return 0; 5265c0eae66eSBenny Halevy out_overflow: 5266c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5267c0eae66eSBenny Halevy return -EIO; 526899fe60d0SBenny Halevy } 5269fc931582SAndy Adamson 5270fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5271fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5272fc931582SAndy Adamson { 5273fc931582SAndy Adamson __be32 *p; 5274c9c30dd5SBenny Halevy u32 nr_attrs, val; 5275fc931582SAndy Adamson 5276c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5277c0eae66eSBenny Halevy if (unlikely(!p)) 5278c0eae66eSBenny Halevy goto out_overflow; 5279c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5280c9c30dd5SBenny Halevy if (val) 5281c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 52826f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 52836f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 52846f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 52856f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 52866f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5287cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5288fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5289fc931582SAndy Adamson printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n", 5290fc931582SAndy Adamson __func__, nr_attrs); 5291fc931582SAndy Adamson return -EINVAL; 5292fc931582SAndy Adamson } 5293c0eae66eSBenny Halevy if (nr_attrs == 1) { 5294c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5295c0eae66eSBenny Halevy if (unlikely(!p)) 5296c0eae66eSBenny Halevy goto out_overflow; 5297c0eae66eSBenny Halevy } 5298fc931582SAndy Adamson return 0; 5299c0eae66eSBenny Halevy out_overflow: 5300c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5301c0eae66eSBenny Halevy return -EIO; 5302fc931582SAndy Adamson } 5303fc931582SAndy Adamson 5304e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5305e78291e4SBenny Halevy { 5306e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5307fc931582SAndy Adamson } 5308fc931582SAndy Adamson 5309fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5310fc931582SAndy Adamson struct nfs41_create_session_res *res) 5311fc931582SAndy Adamson { 5312fc931582SAndy Adamson __be32 *p; 5313fc931582SAndy Adamson int status; 5314fc931582SAndy Adamson struct nfs_client *clp = res->client; 5315fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5316fc931582SAndy Adamson 5317fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5318e78291e4SBenny Halevy if (!status) 5319e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5320e78291e4SBenny Halevy if (unlikely(status)) 5321fc931582SAndy Adamson return status; 5322fc931582SAndy Adamson 5323fc931582SAndy Adamson /* seqid, flags */ 5324c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5325c0eae66eSBenny Halevy if (unlikely(!p)) 5326c0eae66eSBenny Halevy goto out_overflow; 53276f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5328cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5329fc931582SAndy Adamson 5330fc931582SAndy Adamson /* Channel attributes */ 5331fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5332fc931582SAndy Adamson if (!status) 5333fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5334fc931582SAndy Adamson return status; 5335c0eae66eSBenny Halevy out_overflow: 5336c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5337c0eae66eSBenny Halevy return -EIO; 5338fc931582SAndy Adamson } 53390f3e66c6SAndy Adamson 53400f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 53410f3e66c6SAndy Adamson { 53420f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 53430f3e66c6SAndy Adamson } 534418019753SRicardo Labiaga 534518019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 534618019753SRicardo Labiaga { 534718019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 534818019753SRicardo Labiaga } 534999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 535099fe60d0SBenny Halevy 53519b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 53529b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 53539b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 53549b7b9fccSAndy Adamson { 53559b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5356fc01cea9SAndy Adamson struct nfs4_sessionid id; 5357fc01cea9SAndy Adamson u32 dummy; 5358fc01cea9SAndy Adamson int status; 5359fc01cea9SAndy Adamson __be32 *p; 5360fc01cea9SAndy Adamson 53619b7b9fccSAndy Adamson if (!res->sr_session) 53629b7b9fccSAndy Adamson return 0; 53639b7b9fccSAndy Adamson 5364fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5365e78291e4SBenny Halevy if (!status) 5366e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5367e78291e4SBenny Halevy if (unlikely(status)) 5368fc01cea9SAndy Adamson goto out_err; 53699b7b9fccSAndy Adamson 5370fc01cea9SAndy Adamson /* 5371fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5372fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5373fc01cea9SAndy Adamson */ 5374fdcb4577STrond Myklebust status = -EREMOTEIO; 5375fc01cea9SAndy Adamson 5376fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 5377fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5378fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5379fc01cea9SAndy Adamson goto out_err; 5380fc01cea9SAndy Adamson } 5381e78291e4SBenny Halevy 5382c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5383c0eae66eSBenny Halevy if (unlikely(!p)) 5384c0eae66eSBenny Halevy goto out_overflow; 5385e78291e4SBenny Halevy 5386fc01cea9SAndy Adamson /* seqid */ 53876f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5388dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5389fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5390fc01cea9SAndy Adamson goto out_err; 5391fc01cea9SAndy Adamson } 5392fc01cea9SAndy Adamson /* slot id */ 53936f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5394dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 5395fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5396fc01cea9SAndy Adamson goto out_err; 5397fc01cea9SAndy Adamson } 5398fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 53996f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5400fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 54016f723f77SBenny Halevy dummy = be32_to_cpup(p++); 54020629e370SAlexandros Batsakis /* result flags */ 54030629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5404fc01cea9SAndy Adamson status = 0; 5405fc01cea9SAndy Adamson out_err: 5406fc01cea9SAndy Adamson res->sr_status = status; 5407fc01cea9SAndy Adamson return status; 5408c0eae66eSBenny Halevy out_overflow: 5409c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5410c0eae66eSBenny Halevy status = -EIO; 5411c0eae66eSBenny Halevy goto out_err; 5412fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 54139b7b9fccSAndy Adamson return 0; 5414fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 54159b7b9fccSAndy Adamson } 54169b7b9fccSAndy Adamson 5417b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 54187f11d8d3SAndy Adamson /* 54197f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 54207f11d8d3SAndy Adamson */ 54217f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 54227f11d8d3SAndy Adamson struct pnfs_devicelist *res) 54237f11d8d3SAndy Adamson { 54247f11d8d3SAndy Adamson __be32 *p; 54257f11d8d3SAndy Adamson int status, i; 54267f11d8d3SAndy Adamson struct nfs_writeverf verftemp; 54277f11d8d3SAndy Adamson 54287f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 54297f11d8d3SAndy Adamson if (status) 54307f11d8d3SAndy Adamson return status; 54317f11d8d3SAndy Adamson 54327f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 54337f11d8d3SAndy Adamson if (unlikely(!p)) 54347f11d8d3SAndy Adamson goto out_overflow; 54357f11d8d3SAndy Adamson 54367f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 54377f11d8d3SAndy Adamson p += 2; 54387f11d8d3SAndy Adamson 54397f11d8d3SAndy Adamson /* Read verifier */ 54407f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, verftemp.verifier, 8); 54417f11d8d3SAndy Adamson 54427f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 54437f11d8d3SAndy Adamson 54447f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 54457f11d8d3SAndy Adamson 54467f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 54477f11d8d3SAndy Adamson printk(KERN_ERR "%s too many result dev_num %u\n", 54487f11d8d3SAndy Adamson __func__, res->num_devs); 54497f11d8d3SAndy Adamson return -EIO; 54507f11d8d3SAndy Adamson } 54517f11d8d3SAndy Adamson 54527f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 54537f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 54547f11d8d3SAndy Adamson if (unlikely(!p)) 54557f11d8d3SAndy Adamson goto out_overflow; 54567f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 54577f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 54587f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 54597f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 54607f11d8d3SAndy Adamson return 0; 54617f11d8d3SAndy Adamson out_overflow: 54627f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 54637f11d8d3SAndy Adamson return -EIO; 54647f11d8d3SAndy Adamson } 5465b1f69b75SAndy Adamson 5466b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5467b1f69b75SAndy Adamson struct pnfs_device *pdev) 5468b1f69b75SAndy Adamson { 5469b1f69b75SAndy Adamson __be32 *p; 5470b1f69b75SAndy Adamson uint32_t len, type; 5471b1f69b75SAndy Adamson int status; 5472b1f69b75SAndy Adamson 5473b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5474b1f69b75SAndy Adamson if (status) { 5475b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5476b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5477b1f69b75SAndy Adamson if (unlikely(!p)) 5478b1f69b75SAndy Adamson goto out_overflow; 5479b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5480b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5481b1f69b75SAndy Adamson __func__, pdev->mincount); 5482b1f69b75SAndy Adamson } 5483b1f69b75SAndy Adamson return status; 5484b1f69b75SAndy Adamson } 5485b1f69b75SAndy Adamson 5486b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5487b1f69b75SAndy Adamson if (unlikely(!p)) 5488b1f69b75SAndy Adamson goto out_overflow; 5489b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5490b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5491b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5492b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5493b1f69b75SAndy Adamson return -EINVAL; 5494b1f69b75SAndy Adamson } 5495b1f69b75SAndy Adamson /* 5496b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5497b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5498b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5499b1f69b75SAndy Adamson */ 5500b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5501b1f69b75SAndy Adamson xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ 5502b1f69b75SAndy Adamson 5503b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5504b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5505b1f69b75SAndy Adamson if (unlikely(!p)) 5506b1f69b75SAndy Adamson goto out_overflow; 5507b1f69b75SAndy Adamson len = be32_to_cpup(p); 5508b1f69b75SAndy Adamson if (len) { 5509ead00597SChuck Lever uint32_t i; 5510b1f69b75SAndy Adamson 5511b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5512b1f69b75SAndy Adamson if (unlikely(!p)) 5513b1f69b75SAndy Adamson goto out_overflow; 5514b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5515b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5516b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5517b1f69b75SAndy Adamson __func__); 5518b1f69b75SAndy Adamson return -EIO; 5519b1f69b75SAndy Adamson } 5520b1f69b75SAndy Adamson } 5521b1f69b75SAndy Adamson } 5522b1f69b75SAndy Adamson return 0; 5523b1f69b75SAndy Adamson out_overflow: 5524b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5525b1f69b75SAndy Adamson return -EIO; 5526b1f69b75SAndy Adamson } 5527b1f69b75SAndy Adamson 5528b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5529b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5530b1f69b75SAndy Adamson { 5531b1f69b75SAndy Adamson __be32 *p; 5532b1f69b75SAndy Adamson int status; 5533b1f69b75SAndy Adamson u32 layout_count; 553435124a09SWeston Andros Adamson struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 553535124a09SWeston Andros Adamson struct kvec *iov = rcvbuf->head; 553635124a09SWeston Andros Adamson u32 hdrlen, recvd; 5537b1f69b75SAndy Adamson 5538b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5539b1f69b75SAndy Adamson if (status) 5540b1f69b75SAndy Adamson return status; 5541b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); 5542b1f69b75SAndy Adamson if (unlikely(!p)) 5543b1f69b75SAndy Adamson goto out_overflow; 5544b1f69b75SAndy Adamson res->return_on_close = be32_to_cpup(p++); 5545b1f69b75SAndy Adamson p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); 5546b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5547b1f69b75SAndy Adamson if (!layout_count) { 5548b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5549b1f69b75SAndy Adamson __func__); 5550b1f69b75SAndy Adamson return -EINVAL; 5551b1f69b75SAndy Adamson } 5552b1f69b75SAndy Adamson 555335124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5554b1f69b75SAndy Adamson if (unlikely(!p)) 5555b1f69b75SAndy Adamson goto out_overflow; 5556b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5557b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5558b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5559b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 556035124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5561b1f69b75SAndy Adamson 5562b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5563b1f69b75SAndy Adamson __func__, 5564b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5565b1f69b75SAndy Adamson (unsigned long)res->range.length, 5566b1f69b75SAndy Adamson res->range.iomode, 5567b1f69b75SAndy Adamson res->type, 556835124a09SWeston Andros Adamson res->layoutp->len); 5569b1f69b75SAndy Adamson 557035124a09SWeston Andros Adamson hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 557135124a09SWeston Andros Adamson recvd = req->rq_rcv_buf.len - hdrlen; 557235124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 557335124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 557435124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 557535124a09SWeston Andros Adamson res->layoutp->len, recvd); 557635124a09SWeston Andros Adamson return -EINVAL; 557735124a09SWeston Andros Adamson } 557835124a09SWeston Andros Adamson 557935124a09SWeston Andros Adamson xdr_read_pages(xdr, res->layoutp->len); 5580b1f69b75SAndy Adamson 5581b1f69b75SAndy Adamson if (layout_count > 1) { 5582b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5583b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5584b1f69b75SAndy Adamson * the client may see a response that is less than the 5585b1f69b75SAndy Adamson * minimum it requested. 5586b1f69b75SAndy Adamson */ 5587b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5588b1f69b75SAndy Adamson __func__, layout_count); 5589b1f69b75SAndy Adamson } 5590b1f69b75SAndy Adamson 5591b1f69b75SAndy Adamson return 0; 5592b1f69b75SAndy Adamson out_overflow: 5593b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5594b1f69b75SAndy Adamson return -EIO; 5595b1f69b75SAndy Adamson } 5596863a3c6cSAndy Adamson 5597cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5598cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5599cbe82603SBenny Halevy { 5600cbe82603SBenny Halevy __be32 *p; 5601cbe82603SBenny Halevy int status; 5602cbe82603SBenny Halevy 5603cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5604cbe82603SBenny Halevy if (status) 5605cbe82603SBenny Halevy return status; 5606cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5607cbe82603SBenny Halevy if (unlikely(!p)) 5608cbe82603SBenny Halevy goto out_overflow; 5609cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5610cbe82603SBenny Halevy if (res->lrs_present) 5611cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5612cbe82603SBenny Halevy return status; 5613cbe82603SBenny Halevy out_overflow: 5614cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5615cbe82603SBenny Halevy return -EIO; 5616cbe82603SBenny Halevy } 5617cbe82603SBenny Halevy 5618863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5619863a3c6cSAndy Adamson struct rpc_rqst *req, 5620863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5621863a3c6cSAndy Adamson { 5622863a3c6cSAndy Adamson __be32 *p; 5623863a3c6cSAndy Adamson __u32 sizechanged; 5624863a3c6cSAndy Adamson int status; 5625863a3c6cSAndy Adamson 5626863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5627db29c089SAndy Adamson res->status = status; 5628863a3c6cSAndy Adamson if (status) 5629863a3c6cSAndy Adamson return status; 5630863a3c6cSAndy Adamson 5631863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5632863a3c6cSAndy Adamson if (unlikely(!p)) 5633863a3c6cSAndy Adamson goto out_overflow; 5634863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5635863a3c6cSAndy Adamson 5636863a3c6cSAndy Adamson if (sizechanged) { 5637863a3c6cSAndy Adamson /* throw away new size */ 5638863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5639863a3c6cSAndy Adamson if (unlikely(!p)) 5640863a3c6cSAndy Adamson goto out_overflow; 5641863a3c6cSAndy Adamson } 5642863a3c6cSAndy Adamson return 0; 5643863a3c6cSAndy Adamson out_overflow: 5644863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5645863a3c6cSAndy Adamson return -EIO; 5646863a3c6cSAndy Adamson } 56477d974794SBryan Schumaker 56487d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 56497d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 56507d974794SBryan Schumaker { 56517d974794SBryan Schumaker __be32 *p; 56527d974794SBryan Schumaker int status; 56537d974794SBryan Schumaker int num_res; 56547d974794SBryan Schumaker 56557d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 56567d974794SBryan Schumaker if (status) 56577d974794SBryan Schumaker return status; 56587d974794SBryan Schumaker 56597d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 56607d974794SBryan Schumaker if (unlikely(!p)) 56617d974794SBryan Schumaker goto out_overflow; 56627d974794SBryan Schumaker num_res = be32_to_cpup(p++); 56637d974794SBryan Schumaker if (num_res != 1) 56647d974794SBryan Schumaker goto out; 56657d974794SBryan Schumaker 56667d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 56677d974794SBryan Schumaker if (unlikely(!p)) 56687d974794SBryan Schumaker goto out_overflow; 56697d974794SBryan Schumaker res->status = be32_to_cpup(p++); 56707d974794SBryan Schumaker return res->status; 56717d974794SBryan Schumaker out_overflow: 56727d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 56737d974794SBryan Schumaker out: 56747d974794SBryan Schumaker return -EIO; 56757d974794SBryan Schumaker } 56769aeda35fSBryan Schumaker 56779aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 56789aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 56799aeda35fSBryan Schumaker { 56809aeda35fSBryan Schumaker __be32 *p; 56819aeda35fSBryan Schumaker int status; 56829aeda35fSBryan Schumaker 56839aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 56849aeda35fSBryan Schumaker if (status) 56859aeda35fSBryan Schumaker return status; 56869aeda35fSBryan Schumaker 56879aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 56889aeda35fSBryan Schumaker if (unlikely(!p)) 56899aeda35fSBryan Schumaker goto out_overflow; 56909aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 56919aeda35fSBryan Schumaker return res->status; 56929aeda35fSBryan Schumaker out_overflow: 56939aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 56949aeda35fSBryan Schumaker return -EIO; 56959aeda35fSBryan Schumaker } 5696b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5697b1f69b75SAndy Adamson 56981da177e4SLinus Torvalds /* 569949c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 570049c2559eSBenny Halevy */ 570149c2559eSBenny Halevy 570249c2559eSBenny Halevy /* 57031da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 57041da177e4SLinus Torvalds */ 5705bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5706bf269551SChuck Lever struct xdr_stream *xdr, 5707bf269551SChuck Lever struct nfs_closeres *res) 57081da177e4SLinus Torvalds { 57091da177e4SLinus Torvalds struct compound_hdr hdr; 57101da177e4SLinus Torvalds int status; 57111da177e4SLinus Torvalds 5712bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57131da177e4SLinus Torvalds if (status) 57141da177e4SLinus Torvalds goto out; 5715bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57169b7b9fccSAndy Adamson if (status) 57179b7b9fccSAndy Adamson goto out; 5718bf269551SChuck Lever status = decode_putfh(xdr); 57191da177e4SLinus Torvalds if (status) 57201da177e4SLinus Torvalds goto out; 5721bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5722516a6af6STrond Myklebust if (status != 0) 5723516a6af6STrond Myklebust goto out; 57246926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 57251da177e4SLinus Torvalds out: 57261da177e4SLinus Torvalds return status; 57271da177e4SLinus Torvalds } 57281da177e4SLinus Torvalds 57291da177e4SLinus Torvalds /* 57301da177e4SLinus Torvalds * Decode ACCESS response 57311da177e4SLinus Torvalds */ 5732bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5733bf269551SChuck Lever struct nfs4_accessres *res) 57341da177e4SLinus Torvalds { 57351da177e4SLinus Torvalds struct compound_hdr hdr; 57361da177e4SLinus Torvalds int status; 57371da177e4SLinus Torvalds 5738bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57399b7b9fccSAndy Adamson if (status) 57409b7b9fccSAndy Adamson goto out; 5741bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57429b7b9fccSAndy Adamson if (status) 57431da177e4SLinus Torvalds goto out; 5744bf269551SChuck Lever status = decode_putfh(xdr); 574576b32999STrond Myklebust if (status != 0) 574676b32999STrond Myklebust goto out; 5747bf269551SChuck Lever status = decode_access(xdr, res); 574876b32999STrond Myklebust if (status != 0) 574976b32999STrond Myklebust goto out; 57506926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 57511da177e4SLinus Torvalds out: 57521da177e4SLinus Torvalds return status; 57531da177e4SLinus Torvalds } 57541da177e4SLinus Torvalds 57551da177e4SLinus Torvalds /* 57561da177e4SLinus Torvalds * Decode LOOKUP response 57571da177e4SLinus Torvalds */ 5758bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5759bf269551SChuck Lever struct nfs4_lookup_res *res) 57601da177e4SLinus Torvalds { 57611da177e4SLinus Torvalds struct compound_hdr hdr; 57621da177e4SLinus Torvalds int status; 57631da177e4SLinus Torvalds 5764bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57659b7b9fccSAndy Adamson if (status) 57669b7b9fccSAndy Adamson goto out; 5767bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57689b7b9fccSAndy Adamson if (status) 57691da177e4SLinus Torvalds goto out; 5770bf269551SChuck Lever status = decode_putfh(xdr); 5771bf269551SChuck Lever if (status) 57721da177e4SLinus Torvalds goto out; 5773bf269551SChuck Lever status = decode_lookup(xdr); 5774bf269551SChuck Lever if (status) 57751da177e4SLinus Torvalds goto out; 5776bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5777bf269551SChuck Lever if (status) 57781da177e4SLinus Torvalds goto out; 57796926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 57801da177e4SLinus Torvalds out: 57811da177e4SLinus Torvalds return status; 57821da177e4SLinus Torvalds } 57831da177e4SLinus Torvalds 57841da177e4SLinus Torvalds /* 57851da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 57861da177e4SLinus Torvalds */ 5787bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5788bf269551SChuck Lever struct xdr_stream *xdr, 5789bf269551SChuck Lever struct nfs4_lookup_res *res) 57901da177e4SLinus Torvalds { 57911da177e4SLinus Torvalds struct compound_hdr hdr; 57921da177e4SLinus Torvalds int status; 57931da177e4SLinus Torvalds 5794bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57959b7b9fccSAndy Adamson if (status) 57969b7b9fccSAndy Adamson goto out; 5797bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57989b7b9fccSAndy Adamson if (status) 57991da177e4SLinus Torvalds goto out; 5800bf269551SChuck Lever status = decode_putrootfh(xdr); 5801bf269551SChuck Lever if (status) 58021da177e4SLinus Torvalds goto out; 5803bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5804bf269551SChuck Lever if (status == 0) 58056926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 58061da177e4SLinus Torvalds out: 58071da177e4SLinus Torvalds return status; 58081da177e4SLinus Torvalds } 58091da177e4SLinus Torvalds 58101da177e4SLinus Torvalds /* 58111da177e4SLinus Torvalds * Decode REMOVE response 58121da177e4SLinus Torvalds */ 5813bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5814bf269551SChuck Lever struct nfs_removeres *res) 58151da177e4SLinus Torvalds { 58161da177e4SLinus Torvalds struct compound_hdr hdr; 58171da177e4SLinus Torvalds int status; 58181da177e4SLinus Torvalds 5819bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58209b7b9fccSAndy Adamson if (status) 58219b7b9fccSAndy Adamson goto out; 5822bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58239b7b9fccSAndy Adamson if (status) 58241da177e4SLinus Torvalds goto out; 5825bf269551SChuck Lever status = decode_putfh(xdr); 5826bf269551SChuck Lever if (status) 582716e42959STrond Myklebust goto out; 5828bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 5829bf269551SChuck Lever if (status) 583016e42959STrond Myklebust goto out; 58316926afd1STrond Myklebust decode_getfattr(xdr, res->dir_attr, res->server); 58321da177e4SLinus Torvalds out: 58331da177e4SLinus Torvalds return status; 58341da177e4SLinus Torvalds } 58351da177e4SLinus Torvalds 58361da177e4SLinus Torvalds /* 58371da177e4SLinus Torvalds * Decode RENAME response 58381da177e4SLinus Torvalds */ 5839bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5840bf269551SChuck Lever struct nfs_renameres *res) 58411da177e4SLinus Torvalds { 58421da177e4SLinus Torvalds struct compound_hdr hdr; 58431da177e4SLinus Torvalds int status; 58441da177e4SLinus Torvalds 5845bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58469b7b9fccSAndy Adamson if (status) 58479b7b9fccSAndy Adamson goto out; 5848bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58499b7b9fccSAndy Adamson if (status) 58501da177e4SLinus Torvalds goto out; 5851bf269551SChuck Lever status = decode_putfh(xdr); 5852bf269551SChuck Lever if (status) 58531da177e4SLinus Torvalds goto out; 5854bf269551SChuck Lever status = decode_savefh(xdr); 5855bf269551SChuck Lever if (status) 58561da177e4SLinus Torvalds goto out; 5857bf269551SChuck Lever status = decode_putfh(xdr); 5858bf269551SChuck Lever if (status) 58591da177e4SLinus Torvalds goto out; 5860bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 5861bf269551SChuck Lever if (status) 58626caf2c82STrond Myklebust goto out; 58636caf2c82STrond Myklebust /* Current FH is target directory */ 58646926afd1STrond Myklebust if (decode_getfattr(xdr, res->new_fattr, res->server)) 58656caf2c82STrond Myklebust goto out; 5866bf269551SChuck Lever status = decode_restorefh(xdr); 5867bf269551SChuck Lever if (status) 58686caf2c82STrond Myklebust goto out; 58696926afd1STrond Myklebust decode_getfattr(xdr, res->old_fattr, res->server); 58701da177e4SLinus Torvalds out: 58711da177e4SLinus Torvalds return status; 58721da177e4SLinus Torvalds } 58731da177e4SLinus Torvalds 58741da177e4SLinus Torvalds /* 58751da177e4SLinus Torvalds * Decode LINK response 58761da177e4SLinus Torvalds */ 5877bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5878bf269551SChuck Lever struct nfs4_link_res *res) 58791da177e4SLinus Torvalds { 58801da177e4SLinus Torvalds struct compound_hdr hdr; 58811da177e4SLinus Torvalds int status; 58821da177e4SLinus Torvalds 5883bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58849b7b9fccSAndy Adamson if (status) 58859b7b9fccSAndy Adamson goto out; 5886bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58879b7b9fccSAndy Adamson if (status) 58881da177e4SLinus Torvalds goto out; 5889bf269551SChuck Lever status = decode_putfh(xdr); 5890bf269551SChuck Lever if (status) 58911da177e4SLinus Torvalds goto out; 5892bf269551SChuck Lever status = decode_savefh(xdr); 5893bf269551SChuck Lever if (status) 58941da177e4SLinus Torvalds goto out; 5895bf269551SChuck Lever status = decode_putfh(xdr); 5896bf269551SChuck Lever if (status) 58971da177e4SLinus Torvalds goto out; 5898bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 5899bf269551SChuck Lever if (status) 590091ba2eeeSTrond Myklebust goto out; 590191ba2eeeSTrond Myklebust /* 590291ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 590391ba2eeeSTrond Myklebust * filehandle. 590491ba2eeeSTrond Myklebust */ 59056926afd1STrond Myklebust if (decode_getfattr(xdr, res->dir_attr, res->server)) 590691ba2eeeSTrond Myklebust goto out; 5907bf269551SChuck Lever status = decode_restorefh(xdr); 5908bf269551SChuck Lever if (status) 590991ba2eeeSTrond Myklebust goto out; 59106926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 59111da177e4SLinus Torvalds out: 59121da177e4SLinus Torvalds return status; 59131da177e4SLinus Torvalds } 59141da177e4SLinus Torvalds 59151da177e4SLinus Torvalds /* 59161da177e4SLinus Torvalds * Decode CREATE response 59171da177e4SLinus Torvalds */ 5918bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5919bf269551SChuck Lever struct nfs4_create_res *res) 59201da177e4SLinus Torvalds { 59211da177e4SLinus Torvalds struct compound_hdr hdr; 59221da177e4SLinus Torvalds int status; 59231da177e4SLinus Torvalds 5924bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59259b7b9fccSAndy Adamson if (status) 59269b7b9fccSAndy Adamson goto out; 5927bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59289b7b9fccSAndy Adamson if (status) 59291da177e4SLinus Torvalds goto out; 5930bf269551SChuck Lever status = decode_putfh(xdr); 5931bf269551SChuck Lever if (status) 59321da177e4SLinus Torvalds goto out; 5933bf269551SChuck Lever status = decode_savefh(xdr); 5934bf269551SChuck Lever if (status) 593556ae19f3STrond Myklebust goto out; 5936bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 5937bf269551SChuck Lever if (status) 59381da177e4SLinus Torvalds goto out; 5939bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5940bf269551SChuck Lever if (status) 59411da177e4SLinus Torvalds goto out; 59426926afd1STrond Myklebust if (decode_getfattr(xdr, res->fattr, res->server)) 594356ae19f3STrond Myklebust goto out; 5944bf269551SChuck Lever status = decode_restorefh(xdr); 5945bf269551SChuck Lever if (status) 594656ae19f3STrond Myklebust goto out; 59476926afd1STrond Myklebust decode_getfattr(xdr, res->dir_fattr, res->server); 59481da177e4SLinus Torvalds out: 59491da177e4SLinus Torvalds return status; 59501da177e4SLinus Torvalds } 59511da177e4SLinus Torvalds 59521da177e4SLinus Torvalds /* 59531da177e4SLinus Torvalds * Decode SYMLINK response 59541da177e4SLinus Torvalds */ 5955bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5956bf269551SChuck Lever struct nfs4_create_res *res) 59571da177e4SLinus Torvalds { 5958bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 59591da177e4SLinus Torvalds } 59601da177e4SLinus Torvalds 59611da177e4SLinus Torvalds /* 59621da177e4SLinus Torvalds * Decode GETATTR response 59631da177e4SLinus Torvalds */ 5964bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5965bf269551SChuck Lever struct nfs4_getattr_res *res) 59661da177e4SLinus Torvalds { 59671da177e4SLinus Torvalds struct compound_hdr hdr; 59681da177e4SLinus Torvalds int status; 59691da177e4SLinus Torvalds 5970bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59711da177e4SLinus Torvalds if (status) 59721da177e4SLinus Torvalds goto out; 5973bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59749b7b9fccSAndy Adamson if (status) 59759b7b9fccSAndy Adamson goto out; 5976bf269551SChuck Lever status = decode_putfh(xdr); 59771da177e4SLinus Torvalds if (status) 59781da177e4SLinus Torvalds goto out; 59796926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 59801da177e4SLinus Torvalds out: 59811da177e4SLinus Torvalds return status; 59821da177e4SLinus Torvalds } 59831da177e4SLinus Torvalds 598423ec6965SJ. Bruce Fields /* 598523ec6965SJ. Bruce Fields * Encode an SETACL request 598623ec6965SJ. Bruce Fields */ 59879f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 59889f06c719SChuck Lever struct nfs_setaclargs *args) 598923ec6965SJ. Bruce Fields { 599023ec6965SJ. Bruce Fields struct compound_hdr hdr = { 599166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 599223ec6965SJ. Bruce Fields }; 599323ec6965SJ. Bruce Fields 59949f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 59959f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 59969f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 59979f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 5998d017931cSAndy Adamson encode_nops(&hdr); 599923ec6965SJ. Bruce Fields } 600005d564feSAndy Adamson 600123ec6965SJ. Bruce Fields /* 600223ec6965SJ. Bruce Fields * Decode SETACL response 600323ec6965SJ. Bruce Fields */ 600423ec6965SJ. Bruce Fields static int 6005bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 600673c403a9SBenny Halevy struct nfs_setaclres *res) 600723ec6965SJ. Bruce Fields { 600823ec6965SJ. Bruce Fields struct compound_hdr hdr; 600923ec6965SJ. Bruce Fields int status; 601023ec6965SJ. Bruce Fields 6011bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 601223ec6965SJ. Bruce Fields if (status) 601323ec6965SJ. Bruce Fields goto out; 6014bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60159b7b9fccSAndy Adamson if (status) 60169b7b9fccSAndy Adamson goto out; 6017bf269551SChuck Lever status = decode_putfh(xdr); 601823ec6965SJ. Bruce Fields if (status) 601923ec6965SJ. Bruce Fields goto out; 6020bf269551SChuck Lever status = decode_setattr(xdr); 602123ec6965SJ. Bruce Fields out: 602223ec6965SJ. Bruce Fields return status; 602323ec6965SJ. Bruce Fields } 60241da177e4SLinus Torvalds 60251da177e4SLinus Torvalds /* 6026029d105eSJ. Bruce Fields * Decode GETACL response 6027029d105eSJ. Bruce Fields */ 6028029d105eSJ. Bruce Fields static int 6029bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6030663c79b3SBenny Halevy struct nfs_getaclres *res) 6031029d105eSJ. Bruce Fields { 6032029d105eSJ. Bruce Fields struct compound_hdr hdr; 6033029d105eSJ. Bruce Fields int status; 6034029d105eSJ. Bruce Fields 6035bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6036029d105eSJ. Bruce Fields if (status) 6037029d105eSJ. Bruce Fields goto out; 6038bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60399b7b9fccSAndy Adamson if (status) 60409b7b9fccSAndy Adamson goto out; 6041bf269551SChuck Lever status = decode_putfh(xdr); 6042029d105eSJ. Bruce Fields if (status) 6043029d105eSJ. Bruce Fields goto out; 6044bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6045029d105eSJ. Bruce Fields 6046029d105eSJ. Bruce Fields out: 6047029d105eSJ. Bruce Fields return status; 6048029d105eSJ. Bruce Fields } 6049029d105eSJ. Bruce Fields 6050029d105eSJ. Bruce Fields /* 60511da177e4SLinus Torvalds * Decode CLOSE response 60521da177e4SLinus Torvalds */ 6053bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6054bf269551SChuck Lever struct nfs_closeres *res) 60551da177e4SLinus Torvalds { 60561da177e4SLinus Torvalds struct compound_hdr hdr; 60571da177e4SLinus Torvalds int status; 60581da177e4SLinus Torvalds 6059bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60601da177e4SLinus Torvalds if (status) 60611da177e4SLinus Torvalds goto out; 6062bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60639b7b9fccSAndy Adamson if (status) 60649b7b9fccSAndy Adamson goto out; 6065bf269551SChuck Lever status = decode_putfh(xdr); 60661da177e4SLinus Torvalds if (status) 60671da177e4SLinus Torvalds goto out; 6068bf269551SChuck Lever status = decode_close(xdr, res); 6069516a6af6STrond Myklebust if (status != 0) 6070516a6af6STrond Myklebust goto out; 6071516a6af6STrond Myklebust /* 6072516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6073516a6af6STrond Myklebust * in which case the getattr call will fail with 6074516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6075516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6076516a6af6STrond Myklebust */ 60776926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 60781da177e4SLinus Torvalds out: 60791da177e4SLinus Torvalds return status; 60801da177e4SLinus Torvalds } 60811da177e4SLinus Torvalds 60821da177e4SLinus Torvalds /* 60831da177e4SLinus Torvalds * Decode OPEN response 60841da177e4SLinus Torvalds */ 6085bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6086bf269551SChuck Lever struct nfs_openres *res) 60871da177e4SLinus Torvalds { 60881da177e4SLinus Torvalds struct compound_hdr hdr; 60891da177e4SLinus Torvalds int status; 60901da177e4SLinus Torvalds 6091bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60921da177e4SLinus Torvalds if (status) 60931da177e4SLinus Torvalds goto out; 6094bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60959b7b9fccSAndy Adamson if (status) 60969b7b9fccSAndy Adamson goto out; 6097bf269551SChuck Lever status = decode_putfh(xdr); 60981da177e4SLinus Torvalds if (status) 60991da177e4SLinus Torvalds goto out; 6100bf269551SChuck Lever status = decode_savefh(xdr); 610156ae19f3STrond Myklebust if (status) 610256ae19f3STrond Myklebust goto out; 6103bf269551SChuck Lever status = decode_open(xdr, res); 61041da177e4SLinus Torvalds if (status) 61051da177e4SLinus Torvalds goto out; 6106bf269551SChuck Lever if (decode_getfh(xdr, &res->fh) != 0) 61071da177e4SLinus Torvalds goto out; 61086926afd1STrond Myklebust if (decode_getfattr(xdr, res->f_attr, res->server) != 0) 610956ae19f3STrond Myklebust goto out; 6110bf269551SChuck Lever if (decode_restorefh(xdr) != 0) 611156ae19f3STrond Myklebust goto out; 61126926afd1STrond Myklebust decode_getfattr(xdr, res->dir_attr, res->server); 61131da177e4SLinus Torvalds out: 61141da177e4SLinus Torvalds return status; 61151da177e4SLinus Torvalds } 61161da177e4SLinus Torvalds 61171da177e4SLinus Torvalds /* 61181da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 61191da177e4SLinus Torvalds */ 6120bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6121bf269551SChuck Lever struct xdr_stream *xdr, 6122bf269551SChuck Lever struct nfs_open_confirmres *res) 61231da177e4SLinus Torvalds { 61241da177e4SLinus Torvalds struct compound_hdr hdr; 61251da177e4SLinus Torvalds int status; 61261da177e4SLinus Torvalds 6127bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61281da177e4SLinus Torvalds if (status) 61291da177e4SLinus Torvalds goto out; 6130bf269551SChuck Lever status = decode_putfh(xdr); 61311da177e4SLinus Torvalds if (status) 61321da177e4SLinus Torvalds goto out; 6133bf269551SChuck Lever status = decode_open_confirm(xdr, res); 61341da177e4SLinus Torvalds out: 61351da177e4SLinus Torvalds return status; 61361da177e4SLinus Torvalds } 61371da177e4SLinus Torvalds 61381da177e4SLinus Torvalds /* 61391da177e4SLinus Torvalds * Decode OPEN response 61401da177e4SLinus Torvalds */ 6141bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6142bf269551SChuck Lever struct xdr_stream *xdr, 6143bf269551SChuck Lever struct nfs_openres *res) 61441da177e4SLinus Torvalds { 61451da177e4SLinus Torvalds struct compound_hdr hdr; 61461da177e4SLinus Torvalds int status; 61471da177e4SLinus Torvalds 6148bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61491da177e4SLinus Torvalds if (status) 61501da177e4SLinus Torvalds goto out; 6151bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61529b7b9fccSAndy Adamson if (status) 61539b7b9fccSAndy Adamson goto out; 6154bf269551SChuck Lever status = decode_putfh(xdr); 61551da177e4SLinus Torvalds if (status) 61561da177e4SLinus Torvalds goto out; 6157bf269551SChuck Lever status = decode_open(xdr, res); 6158864472e9STrond Myklebust if (status) 6159864472e9STrond Myklebust goto out; 61606926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 61611da177e4SLinus Torvalds out: 61621da177e4SLinus Torvalds return status; 61631da177e4SLinus Torvalds } 61641da177e4SLinus Torvalds 61651da177e4SLinus Torvalds /* 61661da177e4SLinus Torvalds * Decode SETATTR response 61671da177e4SLinus Torvalds */ 6168bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6169bf269551SChuck Lever struct xdr_stream *xdr, 6170bf269551SChuck Lever struct nfs_setattrres *res) 61711da177e4SLinus Torvalds { 61721da177e4SLinus Torvalds struct compound_hdr hdr; 61731da177e4SLinus Torvalds int status; 61741da177e4SLinus Torvalds 6175bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61761da177e4SLinus Torvalds if (status) 61771da177e4SLinus Torvalds goto out; 6178bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61799b7b9fccSAndy Adamson if (status) 61809b7b9fccSAndy Adamson goto out; 6181bf269551SChuck Lever status = decode_putfh(xdr); 61821da177e4SLinus Torvalds if (status) 61831da177e4SLinus Torvalds goto out; 6184bf269551SChuck Lever status = decode_setattr(xdr); 61851da177e4SLinus Torvalds if (status) 61861da177e4SLinus Torvalds goto out; 61876926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 61881da177e4SLinus Torvalds out: 61891da177e4SLinus Torvalds return status; 61901da177e4SLinus Torvalds } 61911da177e4SLinus Torvalds 61921da177e4SLinus Torvalds /* 61931da177e4SLinus Torvalds * Decode LOCK response 61941da177e4SLinus Torvalds */ 6195bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6196bf269551SChuck Lever struct nfs_lock_res *res) 61971da177e4SLinus Torvalds { 61981da177e4SLinus Torvalds struct compound_hdr hdr; 61991da177e4SLinus Torvalds int status; 62001da177e4SLinus Torvalds 6201bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62021da177e4SLinus Torvalds if (status) 62031da177e4SLinus Torvalds goto out; 6204bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62059b7b9fccSAndy Adamson if (status) 62069b7b9fccSAndy Adamson goto out; 6207bf269551SChuck Lever status = decode_putfh(xdr); 62081da177e4SLinus Torvalds if (status) 62091da177e4SLinus Torvalds goto out; 6210bf269551SChuck Lever status = decode_lock(xdr, res); 62111da177e4SLinus Torvalds out: 62121da177e4SLinus Torvalds return status; 62131da177e4SLinus Torvalds } 62141da177e4SLinus Torvalds 62151da177e4SLinus Torvalds /* 62161da177e4SLinus Torvalds * Decode LOCKT response 62171da177e4SLinus Torvalds */ 6218bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6219bf269551SChuck Lever struct nfs_lockt_res *res) 62201da177e4SLinus Torvalds { 62211da177e4SLinus Torvalds struct compound_hdr hdr; 62221da177e4SLinus Torvalds int status; 62231da177e4SLinus Torvalds 6224bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62251da177e4SLinus Torvalds if (status) 62261da177e4SLinus Torvalds goto out; 6227bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62289b7b9fccSAndy Adamson if (status) 62299b7b9fccSAndy Adamson goto out; 6230bf269551SChuck Lever status = decode_putfh(xdr); 62311da177e4SLinus Torvalds if (status) 62321da177e4SLinus Torvalds goto out; 6233bf269551SChuck Lever status = decode_lockt(xdr, res); 62341da177e4SLinus Torvalds out: 62351da177e4SLinus Torvalds return status; 62361da177e4SLinus Torvalds } 62371da177e4SLinus Torvalds 62381da177e4SLinus Torvalds /* 62391da177e4SLinus Torvalds * Decode LOCKU response 62401da177e4SLinus Torvalds */ 6241bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6242bf269551SChuck Lever struct nfs_locku_res *res) 62431da177e4SLinus Torvalds { 62441da177e4SLinus Torvalds struct compound_hdr hdr; 62451da177e4SLinus Torvalds int status; 62461da177e4SLinus Torvalds 6247bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62481da177e4SLinus Torvalds if (status) 62491da177e4SLinus Torvalds goto out; 6250bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62519b7b9fccSAndy Adamson if (status) 62529b7b9fccSAndy Adamson goto out; 6253bf269551SChuck Lever status = decode_putfh(xdr); 62541da177e4SLinus Torvalds if (status) 62551da177e4SLinus Torvalds goto out; 6256bf269551SChuck Lever status = decode_locku(xdr, res); 62571da177e4SLinus Torvalds out: 62581da177e4SLinus Torvalds return status; 62591da177e4SLinus Torvalds } 62601da177e4SLinus Torvalds 6261bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6262bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6263d3c7b7ccSTrond Myklebust { 6264d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6265d3c7b7ccSTrond Myklebust int status; 6266d3c7b7ccSTrond Myklebust 6267bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6268d3c7b7ccSTrond Myklebust if (!status) 6269bf269551SChuck Lever status = decode_release_lockowner(xdr); 6270d3c7b7ccSTrond Myklebust return status; 6271d3c7b7ccSTrond Myklebust } 6272d3c7b7ccSTrond Myklebust 62731da177e4SLinus Torvalds /* 62741da177e4SLinus Torvalds * Decode READLINK response 62751da177e4SLinus Torvalds */ 6276bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6277bf269551SChuck Lever struct xdr_stream *xdr, 6278f50c7000SBenny Halevy struct nfs4_readlink_res *res) 62791da177e4SLinus Torvalds { 62801da177e4SLinus Torvalds struct compound_hdr hdr; 62811da177e4SLinus Torvalds int status; 62821da177e4SLinus Torvalds 6283bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62841da177e4SLinus Torvalds if (status) 62851da177e4SLinus Torvalds goto out; 6286bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62879b7b9fccSAndy Adamson if (status) 62889b7b9fccSAndy Adamson goto out; 6289bf269551SChuck Lever status = decode_putfh(xdr); 62901da177e4SLinus Torvalds if (status) 62911da177e4SLinus Torvalds goto out; 6292bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 62931da177e4SLinus Torvalds out: 62941da177e4SLinus Torvalds return status; 62951da177e4SLinus Torvalds } 62961da177e4SLinus Torvalds 62971da177e4SLinus Torvalds /* 62981da177e4SLinus Torvalds * Decode READDIR response 62991da177e4SLinus Torvalds */ 6300bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6301bf269551SChuck Lever struct nfs4_readdir_res *res) 63021da177e4SLinus Torvalds { 63031da177e4SLinus Torvalds struct compound_hdr hdr; 63041da177e4SLinus Torvalds int status; 63051da177e4SLinus Torvalds 6306bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63071da177e4SLinus Torvalds if (status) 63081da177e4SLinus Torvalds goto out; 6309bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63109b7b9fccSAndy Adamson if (status) 63119b7b9fccSAndy Adamson goto out; 6312bf269551SChuck Lever status = decode_putfh(xdr); 63131da177e4SLinus Torvalds if (status) 63141da177e4SLinus Torvalds goto out; 6315bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 63161da177e4SLinus Torvalds out: 63171da177e4SLinus Torvalds return status; 63181da177e4SLinus Torvalds } 63191da177e4SLinus Torvalds 63201da177e4SLinus Torvalds /* 63211da177e4SLinus Torvalds * Decode Read response 63221da177e4SLinus Torvalds */ 6323bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6324bf269551SChuck Lever struct nfs_readres *res) 63251da177e4SLinus Torvalds { 63261da177e4SLinus Torvalds struct compound_hdr hdr; 63271da177e4SLinus Torvalds int status; 63281da177e4SLinus Torvalds 6329bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63301da177e4SLinus Torvalds if (status) 63311da177e4SLinus Torvalds goto out; 6332bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63339b7b9fccSAndy Adamson if (status) 63349b7b9fccSAndy Adamson goto out; 6335bf269551SChuck Lever status = decode_putfh(xdr); 63361da177e4SLinus Torvalds if (status) 63371da177e4SLinus Torvalds goto out; 6338bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 63391da177e4SLinus Torvalds if (!status) 63401da177e4SLinus Torvalds status = res->count; 63411da177e4SLinus Torvalds out: 63421da177e4SLinus Torvalds return status; 63431da177e4SLinus Torvalds } 63441da177e4SLinus Torvalds 63451da177e4SLinus Torvalds /* 63461da177e4SLinus Torvalds * Decode WRITE response 63471da177e4SLinus Torvalds */ 6348bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6349bf269551SChuck Lever struct nfs_writeres *res) 63501da177e4SLinus Torvalds { 63511da177e4SLinus Torvalds struct compound_hdr hdr; 63521da177e4SLinus Torvalds int status; 63531da177e4SLinus Torvalds 6354bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63551da177e4SLinus Torvalds if (status) 63561da177e4SLinus Torvalds goto out; 6357bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63589b7b9fccSAndy Adamson if (status) 63599b7b9fccSAndy Adamson goto out; 6360bf269551SChuck Lever status = decode_putfh(xdr); 63611da177e4SLinus Torvalds if (status) 63621da177e4SLinus Torvalds goto out; 6363bf269551SChuck Lever status = decode_write(xdr, res); 63644f9838c7STrond Myklebust if (status) 63654f9838c7STrond Myklebust goto out; 63667ffd1064SFred Isaman if (res->fattr) 63676926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63681da177e4SLinus Torvalds if (!status) 63691da177e4SLinus Torvalds status = res->count; 63701da177e4SLinus Torvalds out: 63711da177e4SLinus Torvalds return status; 63721da177e4SLinus Torvalds } 63731da177e4SLinus Torvalds 63741da177e4SLinus Torvalds /* 63751da177e4SLinus Torvalds * Decode COMMIT response 63761da177e4SLinus Torvalds */ 6377bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6378bf269551SChuck Lever struct nfs_writeres *res) 63791da177e4SLinus Torvalds { 63801da177e4SLinus Torvalds struct compound_hdr hdr; 63811da177e4SLinus Torvalds int status; 63821da177e4SLinus Torvalds 6383bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63841da177e4SLinus Torvalds if (status) 63851da177e4SLinus Torvalds goto out; 6386bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63879b7b9fccSAndy Adamson if (status) 63889b7b9fccSAndy Adamson goto out; 6389bf269551SChuck Lever status = decode_putfh(xdr); 63901da177e4SLinus Torvalds if (status) 63911da177e4SLinus Torvalds goto out; 6392bf269551SChuck Lever status = decode_commit(xdr, res); 63934f9838c7STrond Myklebust if (status) 63944f9838c7STrond Myklebust goto out; 6395988b6dceSFred Isaman if (res->fattr) 63966926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 63971da177e4SLinus Torvalds out: 63981da177e4SLinus Torvalds return status; 63991da177e4SLinus Torvalds } 64001da177e4SLinus Torvalds 64011da177e4SLinus Torvalds /* 64028b173218SRicardo Labiaga * Decode FSINFO response 64031da177e4SLinus Torvalds */ 6404bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 64053dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 64061da177e4SLinus Torvalds { 64071da177e4SLinus Torvalds struct compound_hdr hdr; 64081da177e4SLinus Torvalds int status; 64091da177e4SLinus Torvalds 6410bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64111da177e4SLinus Torvalds if (!status) 6412bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 64139b7b9fccSAndy Adamson if (!status) 6414bf269551SChuck Lever status = decode_putfh(xdr); 64151da177e4SLinus Torvalds if (!status) 6416bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 64171da177e4SLinus Torvalds return status; 64181da177e4SLinus Torvalds } 64191da177e4SLinus Torvalds 64201da177e4SLinus Torvalds /* 64218b173218SRicardo Labiaga * Decode PATHCONF response 64221da177e4SLinus Torvalds */ 6423bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6424d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 64251da177e4SLinus Torvalds { 64261da177e4SLinus Torvalds struct compound_hdr hdr; 64271da177e4SLinus Torvalds int status; 64281da177e4SLinus Torvalds 6429bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64301da177e4SLinus Torvalds if (!status) 6431bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 64329b7b9fccSAndy Adamson if (!status) 6433bf269551SChuck Lever status = decode_putfh(xdr); 64341da177e4SLinus Torvalds if (!status) 6435bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 64361da177e4SLinus Torvalds return status; 64371da177e4SLinus Torvalds } 64381da177e4SLinus Torvalds 64391da177e4SLinus Torvalds /* 64408b173218SRicardo Labiaga * Decode STATFS response 64411da177e4SLinus Torvalds */ 6442bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 644324ad148aSBenny Halevy struct nfs4_statfs_res *res) 64441da177e4SLinus Torvalds { 64451da177e4SLinus Torvalds struct compound_hdr hdr; 64461da177e4SLinus Torvalds int status; 64471da177e4SLinus Torvalds 6448bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64491da177e4SLinus Torvalds if (!status) 6450bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 64519b7b9fccSAndy Adamson if (!status) 6452bf269551SChuck Lever status = decode_putfh(xdr); 64531da177e4SLinus Torvalds if (!status) 6454bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 64551da177e4SLinus Torvalds return status; 64561da177e4SLinus Torvalds } 64571da177e4SLinus Torvalds 64581da177e4SLinus Torvalds /* 64598b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 64601da177e4SLinus Torvalds */ 6461bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6462bf269551SChuck Lever struct xdr_stream *xdr, 6463bf269551SChuck Lever struct nfs4_server_caps_res *res) 64641da177e4SLinus Torvalds { 64651da177e4SLinus Torvalds struct compound_hdr hdr; 64661da177e4SLinus Torvalds int status; 64671da177e4SLinus Torvalds 6468bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64699b7b9fccSAndy Adamson if (status) 64709b7b9fccSAndy Adamson goto out; 6471bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 64729b7b9fccSAndy Adamson if (status) 64731da177e4SLinus Torvalds goto out; 6474bf269551SChuck Lever status = decode_putfh(xdr); 6475bf269551SChuck Lever if (status) 64761da177e4SLinus Torvalds goto out; 6477bf269551SChuck Lever status = decode_server_caps(xdr, res); 64781da177e4SLinus Torvalds out: 64791da177e4SLinus Torvalds return status; 64801da177e4SLinus Torvalds } 64811da177e4SLinus Torvalds 64821da177e4SLinus Torvalds /* 64831da177e4SLinus Torvalds * Decode RENEW response 64841da177e4SLinus Torvalds */ 6485bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6486bf269551SChuck Lever void *__unused) 64871da177e4SLinus Torvalds { 64881da177e4SLinus Torvalds struct compound_hdr hdr; 64891da177e4SLinus Torvalds int status; 64901da177e4SLinus Torvalds 6491bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64921da177e4SLinus Torvalds if (!status) 6493bf269551SChuck Lever status = decode_renew(xdr); 64941da177e4SLinus Torvalds return status; 64951da177e4SLinus Torvalds } 64961da177e4SLinus Torvalds 64971da177e4SLinus Torvalds /* 64988b173218SRicardo Labiaga * Decode SETCLIENTID response 64991da177e4SLinus Torvalds */ 6500bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6501bf269551SChuck Lever struct xdr_stream *xdr, 6502bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 65031da177e4SLinus Torvalds { 65041da177e4SLinus Torvalds struct compound_hdr hdr; 65051da177e4SLinus Torvalds int status; 65061da177e4SLinus Torvalds 6507bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65081da177e4SLinus Torvalds if (!status) 6509bf269551SChuck Lever status = decode_setclientid(xdr, res); 65101da177e4SLinus Torvalds return status; 65111da177e4SLinus Torvalds } 65121da177e4SLinus Torvalds 65131da177e4SLinus Torvalds /* 65148b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 65151da177e4SLinus Torvalds */ 6516bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6517bf269551SChuck Lever struct xdr_stream *xdr, 6518bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 65191da177e4SLinus Torvalds { 65201da177e4SLinus Torvalds struct compound_hdr hdr; 65211da177e4SLinus Torvalds int status; 65221da177e4SLinus Torvalds 6523bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65241da177e4SLinus Torvalds if (!status) 6525bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 65261da177e4SLinus Torvalds if (!status) 6527bf269551SChuck Lever status = decode_putrootfh(xdr); 65281da177e4SLinus Torvalds if (!status) 6529bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 65301da177e4SLinus Torvalds return status; 65311da177e4SLinus Torvalds } 65321da177e4SLinus Torvalds 65331da177e4SLinus Torvalds /* 65348b173218SRicardo Labiaga * Decode DELEGRETURN response 65351da177e4SLinus Torvalds */ 6536bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6537bf269551SChuck Lever struct xdr_stream *xdr, 6538bf269551SChuck Lever struct nfs4_delegreturnres *res) 65391da177e4SLinus Torvalds { 65401da177e4SLinus Torvalds struct compound_hdr hdr; 65411da177e4SLinus Torvalds int status; 65421da177e4SLinus Torvalds 6543bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65449b7b9fccSAndy Adamson if (status) 65459b7b9fccSAndy Adamson goto out; 6546bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65479b7b9fccSAndy Adamson if (status) 6548fa178f29STrond Myklebust goto out; 6549bf269551SChuck Lever status = decode_putfh(xdr); 6550fa178f29STrond Myklebust if (status != 0) 6551fa178f29STrond Myklebust goto out; 6552bf269551SChuck Lever status = decode_delegreturn(xdr); 6553556ae3bbSJeff Layton if (status != 0) 6554556ae3bbSJeff Layton goto out; 65556926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6556fa178f29STrond Myklebust out: 65571da177e4SLinus Torvalds return status; 65581da177e4SLinus Torvalds } 65591da177e4SLinus Torvalds 6560683b57b4STrond Myklebust /* 65618b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6562683b57b4STrond Myklebust */ 6563bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6564bf269551SChuck Lever struct xdr_stream *xdr, 656522958463SBenny Halevy struct nfs4_fs_locations_res *res) 6566683b57b4STrond Myklebust { 6567683b57b4STrond Myklebust struct compound_hdr hdr; 6568683b57b4STrond Myklebust int status; 6569683b57b4STrond Myklebust 6570bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65719b7b9fccSAndy Adamson if (status) 65729b7b9fccSAndy Adamson goto out; 6573bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65749b7b9fccSAndy Adamson if (status) 6575683b57b4STrond Myklebust goto out; 6576bf269551SChuck Lever status = decode_putfh(xdr); 6577bf269551SChuck Lever if (status) 6578683b57b4STrond Myklebust goto out; 6579bf269551SChuck Lever status = decode_lookup(xdr); 6580bf269551SChuck Lever if (status) 6581683b57b4STrond Myklebust goto out; 6582bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 6583bf269551SChuck Lever status = decode_getfattr(xdr, &res->fs_locations->fattr, 65846926afd1STrond Myklebust res->fs_locations->server); 6585683b57b4STrond Myklebust out: 6586683b57b4STrond Myklebust return status; 6587683b57b4STrond Myklebust } 6588683b57b4STrond Myklebust 65895a5ea0d4SBryan Schumaker /* 65905a5ea0d4SBryan Schumaker * Decode SECINFO response 65915a5ea0d4SBryan Schumaker */ 65925a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 65935a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 65945a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 65955a5ea0d4SBryan Schumaker { 65965a5ea0d4SBryan Schumaker struct compound_hdr hdr; 65975a5ea0d4SBryan Schumaker int status; 65985a5ea0d4SBryan Schumaker 65995a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 66005a5ea0d4SBryan Schumaker if (status) 66015a5ea0d4SBryan Schumaker goto out; 66025a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 66035a5ea0d4SBryan Schumaker if (status) 66045a5ea0d4SBryan Schumaker goto out; 66055a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 66065a5ea0d4SBryan Schumaker if (status) 66075a5ea0d4SBryan Schumaker goto out; 66085a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 66095a5ea0d4SBryan Schumaker out: 66105a5ea0d4SBryan Schumaker return status; 66115a5ea0d4SBryan Schumaker } 66125a5ea0d4SBryan Schumaker 661399fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 661499fe60d0SBenny Halevy /* 66158b173218SRicardo Labiaga * Decode EXCHANGE_ID response 661699fe60d0SBenny Halevy */ 6617bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6618bf269551SChuck Lever struct xdr_stream *xdr, 661999fe60d0SBenny Halevy void *res) 662099fe60d0SBenny Halevy { 662199fe60d0SBenny Halevy struct compound_hdr hdr; 662299fe60d0SBenny Halevy int status; 662399fe60d0SBenny Halevy 6624bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 662599fe60d0SBenny Halevy if (!status) 6626bf269551SChuck Lever status = decode_exchange_id(xdr, res); 662799fe60d0SBenny Halevy return status; 662899fe60d0SBenny Halevy } 66292050f0ccSAndy Adamson 66302050f0ccSAndy Adamson /* 66318b173218SRicardo Labiaga * Decode CREATE_SESSION response 6632fc931582SAndy Adamson */ 6633bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6634bf269551SChuck Lever struct xdr_stream *xdr, 6635fc931582SAndy Adamson struct nfs41_create_session_res *res) 6636fc931582SAndy Adamson { 6637fc931582SAndy Adamson struct compound_hdr hdr; 6638fc931582SAndy Adamson int status; 6639fc931582SAndy Adamson 6640bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6641fc931582SAndy Adamson if (!status) 6642bf269551SChuck Lever status = decode_create_session(xdr, res); 6643fc931582SAndy Adamson return status; 6644fc931582SAndy Adamson } 6645fc931582SAndy Adamson 6646fc931582SAndy Adamson /* 66478b173218SRicardo Labiaga * Decode DESTROY_SESSION response 66480f3e66c6SAndy Adamson */ 6649bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6650bf269551SChuck Lever struct xdr_stream *xdr, 6651bf269551SChuck Lever void *res) 66520f3e66c6SAndy Adamson { 66530f3e66c6SAndy Adamson struct compound_hdr hdr; 66540f3e66c6SAndy Adamson int status; 66550f3e66c6SAndy Adamson 6656bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66570f3e66c6SAndy Adamson if (!status) 6658bf269551SChuck Lever status = decode_destroy_session(xdr, res); 66590f3e66c6SAndy Adamson return status; 66600f3e66c6SAndy Adamson } 66610f3e66c6SAndy Adamson 66620f3e66c6SAndy Adamson /* 66638b173218SRicardo Labiaga * Decode SEQUENCE response 6664fc01cea9SAndy Adamson */ 6665bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6666bf269551SChuck Lever struct xdr_stream *xdr, 6667fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6668fc01cea9SAndy Adamson { 6669fc01cea9SAndy Adamson struct compound_hdr hdr; 6670fc01cea9SAndy Adamson int status; 6671fc01cea9SAndy Adamson 6672bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6673fc01cea9SAndy Adamson if (!status) 6674bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6675fc01cea9SAndy Adamson return status; 6676fc01cea9SAndy Adamson } 6677fc01cea9SAndy Adamson 6678fc01cea9SAndy Adamson /* 66798b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 66802050f0ccSAndy Adamson */ 6681bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6682bf269551SChuck Lever struct xdr_stream *xdr, 66832050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 66842050f0ccSAndy Adamson { 66852050f0ccSAndy Adamson struct compound_hdr hdr; 66862050f0ccSAndy Adamson int status; 66872050f0ccSAndy Adamson 6688bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66892050f0ccSAndy Adamson if (!status) 6690bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 66912050f0ccSAndy Adamson if (!status) 6692bf269551SChuck Lever status = decode_putrootfh(xdr); 66932050f0ccSAndy Adamson if (!status) 6694bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 66952050f0ccSAndy Adamson return status; 66962050f0ccSAndy Adamson } 669718019753SRicardo Labiaga 669818019753SRicardo Labiaga /* 669918019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 670018019753SRicardo Labiaga */ 6701bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6702bf269551SChuck Lever struct xdr_stream *xdr, 670318019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 670418019753SRicardo Labiaga { 670518019753SRicardo Labiaga struct compound_hdr hdr; 670618019753SRicardo Labiaga int status; 670718019753SRicardo Labiaga 6708bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 670918019753SRicardo Labiaga if (!status) 6710bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 671118019753SRicardo Labiaga if (!status) 6712bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 671318019753SRicardo Labiaga return status; 671418019753SRicardo Labiaga } 6715b1f69b75SAndy Adamson 6716b1f69b75SAndy Adamson /* 67177f11d8d3SAndy Adamson * Decode GETDEVICELIST response 67187f11d8d3SAndy Adamson */ 67197f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 67207f11d8d3SAndy Adamson struct xdr_stream *xdr, 67217f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 67227f11d8d3SAndy Adamson { 67237f11d8d3SAndy Adamson struct compound_hdr hdr; 67247f11d8d3SAndy Adamson int status; 67257f11d8d3SAndy Adamson 67267f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 67277f11d8d3SAndy Adamson 67287f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 67297f11d8d3SAndy Adamson if (status != 0) 67307f11d8d3SAndy Adamson goto out; 67317f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 67327f11d8d3SAndy Adamson if (status != 0) 67337f11d8d3SAndy Adamson goto out; 67347f11d8d3SAndy Adamson status = decode_putfh(xdr); 67357f11d8d3SAndy Adamson if (status != 0) 67367f11d8d3SAndy Adamson goto out; 67377f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 67387f11d8d3SAndy Adamson out: 67397f11d8d3SAndy Adamson return status; 67407f11d8d3SAndy Adamson } 67417f11d8d3SAndy Adamson 67427f11d8d3SAndy Adamson /* 6743b1f69b75SAndy Adamson * Decode GETDEVINFO response 6744b1f69b75SAndy Adamson */ 6745bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6746bf269551SChuck Lever struct xdr_stream *xdr, 6747b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6748b1f69b75SAndy Adamson { 6749b1f69b75SAndy Adamson struct compound_hdr hdr; 6750b1f69b75SAndy Adamson int status; 6751b1f69b75SAndy Adamson 6752bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6753b1f69b75SAndy Adamson if (status != 0) 6754b1f69b75SAndy Adamson goto out; 6755bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6756b1f69b75SAndy Adamson if (status != 0) 6757b1f69b75SAndy Adamson goto out; 6758bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6759b1f69b75SAndy Adamson out: 6760b1f69b75SAndy Adamson return status; 6761b1f69b75SAndy Adamson } 6762b1f69b75SAndy Adamson 6763b1f69b75SAndy Adamson /* 6764b1f69b75SAndy Adamson * Decode LAYOUTGET response 6765b1f69b75SAndy Adamson */ 6766bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6767bf269551SChuck Lever struct xdr_stream *xdr, 6768b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6769b1f69b75SAndy Adamson { 6770b1f69b75SAndy Adamson struct compound_hdr hdr; 6771b1f69b75SAndy Adamson int status; 6772b1f69b75SAndy Adamson 6773bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6774b1f69b75SAndy Adamson if (status) 6775b1f69b75SAndy Adamson goto out; 6776bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6777b1f69b75SAndy Adamson if (status) 6778b1f69b75SAndy Adamson goto out; 6779bf269551SChuck Lever status = decode_putfh(xdr); 6780b1f69b75SAndy Adamson if (status) 6781b1f69b75SAndy Adamson goto out; 6782bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6783b1f69b75SAndy Adamson out: 6784b1f69b75SAndy Adamson return status; 6785b1f69b75SAndy Adamson } 6786863a3c6cSAndy Adamson 6787863a3c6cSAndy Adamson /* 6788cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6789cbe82603SBenny Halevy */ 6790cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6791cbe82603SBenny Halevy struct xdr_stream *xdr, 6792cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6793cbe82603SBenny Halevy { 6794cbe82603SBenny Halevy struct compound_hdr hdr; 6795cbe82603SBenny Halevy int status; 6796cbe82603SBenny Halevy 6797cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6798cbe82603SBenny Halevy if (status) 6799cbe82603SBenny Halevy goto out; 6800cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6801cbe82603SBenny Halevy if (status) 6802cbe82603SBenny Halevy goto out; 6803cbe82603SBenny Halevy status = decode_putfh(xdr); 6804cbe82603SBenny Halevy if (status) 6805cbe82603SBenny Halevy goto out; 6806cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6807cbe82603SBenny Halevy out: 6808cbe82603SBenny Halevy return status; 6809cbe82603SBenny Halevy } 6810cbe82603SBenny Halevy 6811cbe82603SBenny Halevy /* 6812863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6813863a3c6cSAndy Adamson */ 6814863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6815863a3c6cSAndy Adamson struct xdr_stream *xdr, 6816863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6817863a3c6cSAndy Adamson { 6818863a3c6cSAndy Adamson struct compound_hdr hdr; 6819863a3c6cSAndy Adamson int status; 6820863a3c6cSAndy Adamson 6821863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6822863a3c6cSAndy Adamson if (status) 6823863a3c6cSAndy Adamson goto out; 6824863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6825863a3c6cSAndy Adamson if (status) 6826863a3c6cSAndy Adamson goto out; 6827863a3c6cSAndy Adamson status = decode_putfh(xdr); 6828863a3c6cSAndy Adamson if (status) 6829863a3c6cSAndy Adamson goto out; 6830863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6831863a3c6cSAndy Adamson if (status) 6832863a3c6cSAndy Adamson goto out; 68336926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6834863a3c6cSAndy Adamson out: 6835863a3c6cSAndy Adamson return status; 6836863a3c6cSAndy Adamson } 6837fca78d6dSBryan Schumaker 6838fca78d6dSBryan Schumaker /* 6839fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 6840fca78d6dSBryan Schumaker */ 6841fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 6842fca78d6dSBryan Schumaker struct xdr_stream *xdr, 6843fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 6844fca78d6dSBryan Schumaker { 6845fca78d6dSBryan Schumaker struct compound_hdr hdr; 6846fca78d6dSBryan Schumaker int status; 6847fca78d6dSBryan Schumaker 6848fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 6849fca78d6dSBryan Schumaker if (status) 6850fca78d6dSBryan Schumaker goto out; 6851fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 6852fca78d6dSBryan Schumaker if (status) 6853fca78d6dSBryan Schumaker goto out; 6854fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 6855fca78d6dSBryan Schumaker if (status) 6856fca78d6dSBryan Schumaker goto out; 6857fca78d6dSBryan Schumaker status = decode_secinfo(xdr, res); 6858fca78d6dSBryan Schumaker out: 6859fca78d6dSBryan Schumaker return status; 6860fca78d6dSBryan Schumaker } 68617d974794SBryan Schumaker 68627d974794SBryan Schumaker /* 68637d974794SBryan Schumaker * Decode TEST_STATEID response 68647d974794SBryan Schumaker */ 68657d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 68667d974794SBryan Schumaker struct xdr_stream *xdr, 68677d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 68687d974794SBryan Schumaker { 68697d974794SBryan Schumaker struct compound_hdr hdr; 68707d974794SBryan Schumaker int status; 68717d974794SBryan Schumaker 68727d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 68737d974794SBryan Schumaker if (status) 68747d974794SBryan Schumaker goto out; 68757d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 68767d974794SBryan Schumaker if (status) 68777d974794SBryan Schumaker goto out; 68787d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 68797d974794SBryan Schumaker out: 68807d974794SBryan Schumaker return status; 68817d974794SBryan Schumaker } 68829aeda35fSBryan Schumaker 68839aeda35fSBryan Schumaker /* 68849aeda35fSBryan Schumaker * Decode FREE_STATEID response 68859aeda35fSBryan Schumaker */ 68869aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 68879aeda35fSBryan Schumaker struct xdr_stream *xdr, 68889aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 68899aeda35fSBryan Schumaker { 68909aeda35fSBryan Schumaker struct compound_hdr hdr; 68919aeda35fSBryan Schumaker int status; 68929aeda35fSBryan Schumaker 68939aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 68949aeda35fSBryan Schumaker if (status) 68959aeda35fSBryan Schumaker goto out; 68969aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 68979aeda35fSBryan Schumaker if (status) 68989aeda35fSBryan Schumaker goto out; 68999aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 69009aeda35fSBryan Schumaker out: 69019aeda35fSBryan Schumaker return status; 69029aeda35fSBryan Schumaker } 690399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 690499fe60d0SBenny Halevy 6905573c4e1eSChuck Lever /** 6906573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 6907573c4e1eSChuck Lever * the local page cache. 6908573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 6909573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 6910573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 6911573c4e1eSChuck Lever * 6912573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 6913573c4e1eSChuck Lever * returned. 6914573c4e1eSChuck Lever * 6915573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 6916573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 6917573c4e1eSChuck Lever * on a directory already in our cache. 6918573c4e1eSChuck Lever */ 6919573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 6920573c4e1eSChuck Lever int plus) 69211da177e4SLinus Torvalds { 6922dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 69231da177e4SLinus Torvalds uint32_t len; 6924babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 6925babddc72SBryan Schumaker if (unlikely(!p)) 6926babddc72SBryan Schumaker goto out_overflow; 6927c08e76d0SChuck Lever if (*p == xdr_zero) { 6928babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 6929babddc72SBryan Schumaker if (unlikely(!p)) 6930babddc72SBryan Schumaker goto out_overflow; 6931c08e76d0SChuck Lever if (*p == xdr_zero) 6932573c4e1eSChuck Lever return -EAGAIN; 69331da177e4SLinus Torvalds entry->eof = 1; 6934573c4e1eSChuck Lever return -EBADCOOKIE; 69351da177e4SLinus Torvalds } 69361da177e4SLinus Torvalds 6937babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 6938babddc72SBryan Schumaker if (unlikely(!p)) 6939babddc72SBryan Schumaker goto out_overflow; 69401da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 69411da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 6942c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 6943babddc72SBryan Schumaker 69449af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 6945babddc72SBryan Schumaker if (unlikely(!p)) 6946babddc72SBryan Schumaker goto out_overflow; 69471da177e4SLinus Torvalds entry->name = (const char *) p; 69481da177e4SLinus Torvalds 69491da177e4SLinus Torvalds /* 69501da177e4SLinus Torvalds * In case the server doesn't return an inode number, 69511da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 69521da177e4SLinus Torvalds * since glibc seems to choke on it...) 69531da177e4SLinus Torvalds */ 69541da177e4SLinus Torvalds entry->ino = 1; 69554f082222STrond Myklebust entry->fattr->valid = 0; 69561da177e4SLinus Torvalds 69579af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 6958babddc72SBryan Schumaker goto out_overflow; 69599af8c222STrond Myklebust 69609af8c222STrond Myklebust if (decode_attr_length(xdr, &len, &p) < 0) 6961babddc72SBryan Schumaker goto out_overflow; 69629af8c222STrond Myklebust 6963573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 69646926afd1STrond Myklebust entry->server) < 0) 6965babddc72SBryan Schumaker goto out_overflow; 696628331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 696728331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 696828331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 696982f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 69709af8c222STrond Myklebust 69710b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 69720b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 69730b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 69740b26a0bfSTrond Myklebust 6975573c4e1eSChuck Lever return 0; 6976babddc72SBryan Schumaker 6977babddc72SBryan Schumaker out_overflow: 6978babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 6979573c4e1eSChuck Lever return -EAGAIN; 69801da177e4SLinus Torvalds } 69811da177e4SLinus Torvalds 69821da177e4SLinus Torvalds /* 69831da177e4SLinus Torvalds * We need to translate between nfs status return values and 69841da177e4SLinus Torvalds * the local errno values which may not be the same. 69851da177e4SLinus Torvalds */ 69861da177e4SLinus Torvalds static struct { 69871da177e4SLinus Torvalds int stat; 69881da177e4SLinus Torvalds int errno; 69891da177e4SLinus Torvalds } nfs_errtbl[] = { 69901da177e4SLinus Torvalds { NFS4_OK, 0 }, 6991856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 6992856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 6993856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 6994856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 6995856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 6996856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 6997856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 6998856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 6999856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7000856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7001856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7002856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7003856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7004856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7005856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7006856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7007856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7008856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7009856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7010856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7011856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7012856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7013fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7014856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7015856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7016856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7017856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7018856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7019856dff3dSBenny Halevy { -1, -EIO } 70201da177e4SLinus Torvalds }; 70211da177e4SLinus Torvalds 70221da177e4SLinus Torvalds /* 70231da177e4SLinus Torvalds * Convert an NFS error code to a local one. 70241da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 70251da177e4SLinus Torvalds */ 70261da177e4SLinus Torvalds static int 70270a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 70281da177e4SLinus Torvalds { 70291da177e4SLinus Torvalds int i; 70301da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 70311da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 70321da177e4SLinus Torvalds return nfs_errtbl[i].errno; 70331da177e4SLinus Torvalds } 70341da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 70351da177e4SLinus Torvalds /* The server is looney tunes. */ 7036fdcb4577STrond Myklebust return -EREMOTEIO; 70371da177e4SLinus Torvalds } 70381da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 70391da177e4SLinus Torvalds * handle it. 70401da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 70411da177e4SLinus Torvalds * not conflict with native Linux error codes. 70421da177e4SLinus Torvalds */ 7043856dff3dSBenny Halevy return -stat; 70441da177e4SLinus Torvalds } 70451da177e4SLinus Torvalds 70461da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 70471da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 70481da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 70499f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7050bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 70512bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 70522bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7053cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7054cc0175c1SChuck Lever .p_name = #proc, \ 70551da177e4SLinus Torvalds } 70561da177e4SLinus Torvalds 70571da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 70581da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 70591da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 70601da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 70611da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 70621da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 70631da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 70641da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 70651da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 70661da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 70671da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 70681da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 70691da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 70701da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 70711da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 70721da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 70731da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 70741da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 70751da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 70761da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 70771da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 70781da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 70791da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 70801da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 70811da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 70821da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 70831da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 70841da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 70851da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 70861da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 70871da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 70881da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7089029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 709023ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7091683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7092d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 70935a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 709499fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 709599fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7096fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 70970f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7098fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 70992050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 710018019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7101b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7102b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7103863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7104cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7105fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 71067d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 71079aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 71087f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 710999fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 71101da177e4SLinus Torvalds }; 71111da177e4SLinus Torvalds 71121da177e4SLinus Torvalds struct rpc_version nfs_version4 = { 71131da177e4SLinus Torvalds .number = 4, 7114e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 71151da177e4SLinus Torvalds .procs = nfs4_procedures 71161da177e4SLinus Torvalds }; 71171da177e4SLinus Torvalds 71181da177e4SLinus Torvalds /* 71191da177e4SLinus Torvalds * Local variables: 71201da177e4SLinus Torvalds * c-basic-offset: 8 71211da177e4SLinus Torvalds * End: 71221da177e4SLinus Torvalds */ 7123