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> 47db8ac8baSWeston Andros Adamson #include <linux/module.h> 48db8ac8baSWeston Andros Adamson #include <linux/utsname.h> 491da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 502449ea2eSAlexandros Batsakis #include <linux/sunrpc/msg_prot.h> 515a5ea0d4SBryan Schumaker #include <linux/sunrpc/gss_api.h> 521da177e4SLinus Torvalds #include <linux/nfs.h> 531da177e4SLinus Torvalds #include <linux/nfs4.h> 541da177e4SLinus Torvalds #include <linux/nfs_fs.h> 551da177e4SLinus Torvalds #include <linux/nfs_idmap.h> 564ce79717STrond Myklebust #include "nfs4_fs.h" 574882ef72SAlexandros Batsakis #include "internal.h" 58b1f69b75SAndy Adamson #include "pnfs.h" 591da177e4SLinus Torvalds 601da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_XDR 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds /* Mapping from NFS error code to "errno" error code. */ 631da177e4SLinus Torvalds #define errno_NFSERR_IO EIO 641da177e4SLinus Torvalds 650a8ea437SDavid Howells static int nfs4_stat_to_errno(int); 661da177e4SLinus Torvalds 671da177e4SLinus Torvalds /* NFSv4 COMPOUND tags are only wanted for debugging purposes */ 681da177e4SLinus Torvalds #ifdef DEBUG 691da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 20 701da177e4SLinus Torvalds #else 711da177e4SLinus Torvalds #define NFS4_MAXTAGLEN 0 721da177e4SLinus Torvalds #endif 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds /* lock,open owner id: 759f958ab8STrond Myklebust * we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2) 761da177e4SLinus Torvalds */ 77d035c36cSTrond Myklebust #define open_owner_id_maxsz (1 + 1 + 4) 78d035c36cSTrond Myklebust #define lock_owner_id_maxsz (1 + 1 + 4) 799104a55dSTrond Myklebust #define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 801da177e4SLinus Torvalds #define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 811da177e4SLinus Torvalds #define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2)) 821da177e4SLinus Torvalds #define op_encode_hdr_maxsz (1) 831da177e4SLinus Torvalds #define op_decode_hdr_maxsz (2) 849104a55dSTrond Myklebust #define encode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 859104a55dSTrond Myklebust #define decode_stateid_maxsz (XDR_QUADLEN(NFS4_STATEID_SIZE)) 869104a55dSTrond Myklebust #define encode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 879104a55dSTrond Myklebust #define decode_verifier_maxsz (XDR_QUADLEN(NFS4_VERIFIER_SIZE)) 881da177e4SLinus Torvalds #define encode_putfh_maxsz (op_encode_hdr_maxsz + 1 + \ 891da177e4SLinus Torvalds (NFS4_FHSIZE >> 2)) 901da177e4SLinus Torvalds #define decode_putfh_maxsz (op_decode_hdr_maxsz) 911da177e4SLinus Torvalds #define encode_putrootfh_maxsz (op_encode_hdr_maxsz) 921da177e4SLinus Torvalds #define decode_putrootfh_maxsz (op_decode_hdr_maxsz) 931da177e4SLinus Torvalds #define encode_getfh_maxsz (op_encode_hdr_maxsz) 941da177e4SLinus Torvalds #define decode_getfh_maxsz (op_decode_hdr_maxsz + 1 + \ 951da177e4SLinus Torvalds ((3+NFS4_FHSIZE) >> 2)) 96e5012d1fSAndy Adamson #define nfs4_fattr_bitmap_maxsz 4 9796928206SJ. Bruce Fields #define encode_getattr_maxsz (op_encode_hdr_maxsz + nfs4_fattr_bitmap_maxsz) 981da177e4SLinus Torvalds #define nfs4_name_maxsz (1 + ((3 + NFS4_MAXNAMLEN) >> 2)) 991da177e4SLinus Torvalds #define nfs4_path_maxsz (1 + ((3 + NFS4_MAXPATHLEN) >> 2)) 100bd625ba8STrond Myklebust #define nfs4_owner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 101bd625ba8STrond Myklebust #define nfs4_group_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ)) 10296928206SJ. Bruce Fields /* This is based on getfattr, which uses the most attributes: */ 10396928206SJ. Bruce Fields #define nfs4_fattr_value_maxsz (1 + (1 + 2 + 2 + 4 + 2 + 1 + 1 + 2 + 2 + \ 104bd625ba8STrond Myklebust 3 + 3 + 3 + nfs4_owner_maxsz + nfs4_group_maxsz)) 10596928206SJ. Bruce Fields #define nfs4_fattr_maxsz (nfs4_fattr_bitmap_maxsz + \ 10696928206SJ. Bruce Fields nfs4_fattr_value_maxsz) 10796928206SJ. Bruce Fields #define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz) 1089104a55dSTrond Myklebust #define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \ 1099104a55dSTrond Myklebust 1 + 2 + 1 + \ 1109104a55dSTrond Myklebust nfs4_owner_maxsz + \ 1119104a55dSTrond Myklebust nfs4_group_maxsz + \ 1129104a55dSTrond Myklebust 4 + 4) 1131da177e4SLinus Torvalds #define encode_savefh_maxsz (op_encode_hdr_maxsz) 1141da177e4SLinus Torvalds #define decode_savefh_maxsz (op_decode_hdr_maxsz) 11556ae19f3STrond Myklebust #define encode_restorefh_maxsz (op_encode_hdr_maxsz) 11656ae19f3STrond Myklebust #define decode_restorefh_maxsz (op_decode_hdr_maxsz) 1172f42b5d0SFred Isaman #define encode_fsinfo_maxsz (encode_getattr_maxsz) 118dae100c2SFred Isaman /* The 5 accounts for the PNFS attributes, and assumes that at most three 119dae100c2SFred Isaman * layout types will be returned. 120dae100c2SFred Isaman */ 121dae100c2SFred Isaman #define decode_fsinfo_maxsz (op_decode_hdr_maxsz + \ 122dae100c2SFred Isaman nfs4_fattr_bitmap_maxsz + 4 + 8 + 5) 1231da177e4SLinus Torvalds #define encode_renew_maxsz (op_encode_hdr_maxsz + 3) 1241da177e4SLinus Torvalds #define decode_renew_maxsz (op_decode_hdr_maxsz) 1251da177e4SLinus Torvalds #define encode_setclientid_maxsz \ 1261da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 127cc38bac3SChuck Lever XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \ 128cc38bac3SChuck Lever XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \ 129cc38bac3SChuck Lever 1 /* sc_prog */ + \ 130cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \ 131cc38bac3SChuck Lever XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \ 132cc38bac3SChuck Lever 1) /* sc_cb_ident */ 1331da177e4SLinus Torvalds #define decode_setclientid_maxsz \ 1341da177e4SLinus Torvalds (op_decode_hdr_maxsz + \ 1351da177e4SLinus Torvalds 2 + \ 1361da177e4SLinus Torvalds 1024) /* large value for CLID_INUSE */ 1371da177e4SLinus Torvalds #define encode_setclientid_confirm_maxsz \ 1381da177e4SLinus Torvalds (op_encode_hdr_maxsz + \ 1391da177e4SLinus Torvalds 3 + (NFS4_VERIFIER_SIZE >> 2)) 1401da177e4SLinus Torvalds #define decode_setclientid_confirm_maxsz \ 1411da177e4SLinus Torvalds (op_decode_hdr_maxsz) 142e6889620STrond Myklebust #define encode_lookup_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 143e6889620STrond Myklebust #define decode_lookup_maxsz (op_decode_hdr_maxsz) 1442cebf828STrond Myklebust #define encode_share_access_maxsz \ 1452cebf828STrond Myklebust (2) 1464882ef72SAlexandros Batsakis #define encode_createmode_maxsz (1 + encode_attrs_maxsz + encode_verifier_maxsz) 1472cebf828STrond Myklebust #define encode_opentype_maxsz (1 + encode_createmode_maxsz) 1482cebf828STrond Myklebust #define encode_claim_null_maxsz (1 + nfs4_name_maxsz) 1492cebf828STrond Myklebust #define encode_open_maxsz (op_encode_hdr_maxsz + \ 1502cebf828STrond Myklebust 2 + encode_share_access_maxsz + 2 + \ 1512cebf828STrond Myklebust open_owner_id_maxsz + \ 1522cebf828STrond Myklebust encode_opentype_maxsz + \ 1532cebf828STrond Myklebust encode_claim_null_maxsz) 1542cebf828STrond Myklebust #define decode_ace_maxsz (3 + nfs4_owner_maxsz) 1559104a55dSTrond Myklebust #define decode_delegation_maxsz (1 + decode_stateid_maxsz + 1 + \ 1562cebf828STrond Myklebust decode_ace_maxsz) 1572cebf828STrond Myklebust #define decode_change_info_maxsz (5) 1582cebf828STrond Myklebust #define decode_open_maxsz (op_decode_hdr_maxsz + \ 1599104a55dSTrond Myklebust decode_stateid_maxsz + \ 1602cebf828STrond Myklebust decode_change_info_maxsz + 1 + \ 1612cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz + \ 1622cebf828STrond Myklebust decode_delegation_maxsz) 1639104a55dSTrond Myklebust #define encode_open_confirm_maxsz \ 1649104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1659104a55dSTrond Myklebust encode_stateid_maxsz + 1) 1669104a55dSTrond Myklebust #define decode_open_confirm_maxsz \ 1679104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1689104a55dSTrond Myklebust decode_stateid_maxsz) 1699104a55dSTrond Myklebust #define encode_open_downgrade_maxsz \ 1709104a55dSTrond Myklebust (op_encode_hdr_maxsz + \ 1719104a55dSTrond Myklebust encode_stateid_maxsz + 1 + \ 1729104a55dSTrond Myklebust encode_share_access_maxsz) 1739104a55dSTrond Myklebust #define decode_open_downgrade_maxsz \ 1749104a55dSTrond Myklebust (op_decode_hdr_maxsz + \ 1759104a55dSTrond Myklebust decode_stateid_maxsz) 1769104a55dSTrond Myklebust #define encode_close_maxsz (op_encode_hdr_maxsz + \ 1779104a55dSTrond Myklebust 1 + encode_stateid_maxsz) 1789104a55dSTrond Myklebust #define decode_close_maxsz (op_decode_hdr_maxsz + \ 1799104a55dSTrond Myklebust decode_stateid_maxsz) 1809104a55dSTrond Myklebust #define encode_setattr_maxsz (op_encode_hdr_maxsz + \ 1819104a55dSTrond Myklebust encode_stateid_maxsz + \ 1829104a55dSTrond Myklebust encode_attrs_maxsz) 1839104a55dSTrond Myklebust #define decode_setattr_maxsz (op_decode_hdr_maxsz + \ 1849104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz) 1859104a55dSTrond Myklebust #define encode_read_maxsz (op_encode_hdr_maxsz + \ 1869104a55dSTrond Myklebust encode_stateid_maxsz + 3) 1879104a55dSTrond Myklebust #define decode_read_maxsz (op_decode_hdr_maxsz + 2) 1889104a55dSTrond Myklebust #define encode_readdir_maxsz (op_encode_hdr_maxsz + \ 1899104a55dSTrond Myklebust 2 + encode_verifier_maxsz + 5) 1909104a55dSTrond Myklebust #define decode_readdir_maxsz (op_decode_hdr_maxsz + \ 1919104a55dSTrond Myklebust decode_verifier_maxsz) 1929104a55dSTrond Myklebust #define encode_readlink_maxsz (op_encode_hdr_maxsz) 1939104a55dSTrond Myklebust #define decode_readlink_maxsz (op_decode_hdr_maxsz + 1) 1949104a55dSTrond Myklebust #define encode_write_maxsz (op_encode_hdr_maxsz + \ 1959104a55dSTrond Myklebust encode_stateid_maxsz + 4) 1969104a55dSTrond Myklebust #define decode_write_maxsz (op_decode_hdr_maxsz + \ 1979104a55dSTrond Myklebust 2 + decode_verifier_maxsz) 1989104a55dSTrond Myklebust #define encode_commit_maxsz (op_encode_hdr_maxsz + 3) 1999104a55dSTrond Myklebust #define decode_commit_maxsz (op_decode_hdr_maxsz + \ 2009104a55dSTrond Myklebust decode_verifier_maxsz) 2011da177e4SLinus Torvalds #define encode_remove_maxsz (op_encode_hdr_maxsz + \ 2021da177e4SLinus Torvalds nfs4_name_maxsz) 2036ce18391SBenny Halevy #define decode_remove_maxsz (op_decode_hdr_maxsz + \ 2046ce18391SBenny Halevy decode_change_info_maxsz) 2051da177e4SLinus Torvalds #define encode_rename_maxsz (op_encode_hdr_maxsz + \ 2061da177e4SLinus Torvalds 2 * nfs4_name_maxsz) 2076ce18391SBenny Halevy #define decode_rename_maxsz (op_decode_hdr_maxsz + \ 2086ce18391SBenny Halevy decode_change_info_maxsz + \ 2096ce18391SBenny Halevy decode_change_info_maxsz) 2101da177e4SLinus Torvalds #define encode_link_maxsz (op_encode_hdr_maxsz + \ 2111da177e4SLinus Torvalds nfs4_name_maxsz) 2126ce18391SBenny Halevy #define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz) 213daccbdedSTrond Myklebust #define encode_lockowner_maxsz (7) 2149104a55dSTrond Myklebust #define encode_lock_maxsz (op_encode_hdr_maxsz + \ 2159104a55dSTrond Myklebust 7 + \ 216daccbdedSTrond Myklebust 1 + encode_stateid_maxsz + 1 + \ 217daccbdedSTrond Myklebust encode_lockowner_maxsz) 2189104a55dSTrond Myklebust #define decode_lock_denied_maxsz \ 2199104a55dSTrond Myklebust (8 + decode_lockowner_maxsz) 2209104a55dSTrond Myklebust #define decode_lock_maxsz (op_decode_hdr_maxsz + \ 2219104a55dSTrond Myklebust decode_lock_denied_maxsz) 222daccbdedSTrond Myklebust #define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \ 223daccbdedSTrond Myklebust encode_lockowner_maxsz) 2249104a55dSTrond Myklebust #define decode_lockt_maxsz (op_decode_hdr_maxsz + \ 2259104a55dSTrond Myklebust decode_lock_denied_maxsz) 2269104a55dSTrond Myklebust #define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \ 2279104a55dSTrond Myklebust encode_stateid_maxsz + \ 2289104a55dSTrond Myklebust 4) 2299104a55dSTrond Myklebust #define decode_locku_maxsz (op_decode_hdr_maxsz + \ 2309104a55dSTrond Myklebust decode_stateid_maxsz) 231d3c7b7ccSTrond Myklebust #define encode_release_lockowner_maxsz \ 232d3c7b7ccSTrond Myklebust (op_encode_hdr_maxsz + \ 233d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 234d3c7b7ccSTrond Myklebust #define decode_release_lockowner_maxsz \ 235d3c7b7ccSTrond Myklebust (op_decode_hdr_maxsz) 2369104a55dSTrond Myklebust #define encode_access_maxsz (op_encode_hdr_maxsz + 1) 2379104a55dSTrond Myklebust #define decode_access_maxsz (op_decode_hdr_maxsz + 2) 2381da177e4SLinus Torvalds #define encode_symlink_maxsz (op_encode_hdr_maxsz + \ 2391da177e4SLinus Torvalds 1 + nfs4_name_maxsz + \ 24094a6d753SChuck Lever 1 + \ 24196928206SJ. Bruce Fields nfs4_fattr_maxsz) 2421da177e4SLinus Torvalds #define decode_symlink_maxsz (op_decode_hdr_maxsz + 8) 2431da177e4SLinus Torvalds #define encode_create_maxsz (op_encode_hdr_maxsz + \ 2449104a55dSTrond Myklebust 1 + 2 + nfs4_name_maxsz + \ 2459104a55dSTrond Myklebust encode_attrs_maxsz) 2462cebf828STrond Myklebust #define decode_create_maxsz (op_decode_hdr_maxsz + \ 2472cebf828STrond Myklebust decode_change_info_maxsz + \ 2482cebf828STrond Myklebust nfs4_fattr_bitmap_maxsz) 2499104a55dSTrond Myklebust #define encode_statfs_maxsz (encode_getattr_maxsz) 2509104a55dSTrond Myklebust #define decode_statfs_maxsz (decode_getattr_maxsz) 2511da177e4SLinus Torvalds #define encode_delegreturn_maxsz (op_encode_hdr_maxsz + 4) 2521da177e4SLinus Torvalds #define decode_delegreturn_maxsz (op_decode_hdr_maxsz) 2539104a55dSTrond Myklebust #define encode_getacl_maxsz (encode_getattr_maxsz) 2549104a55dSTrond Myklebust #define decode_getacl_maxsz (op_decode_hdr_maxsz + \ 2559104a55dSTrond Myklebust nfs4_fattr_bitmap_maxsz + 1) 2569104a55dSTrond Myklebust #define encode_setacl_maxsz (op_encode_hdr_maxsz + \ 2579104a55dSTrond Myklebust encode_stateid_maxsz + 3) 2589104a55dSTrond Myklebust #define decode_setacl_maxsz (decode_setattr_maxsz) 259e6889620STrond Myklebust #define encode_fs_locations_maxsz \ 260e6889620STrond Myklebust (encode_getattr_maxsz) 261e6889620STrond Myklebust #define decode_fs_locations_maxsz \ 262e6889620STrond Myklebust (0) 2635a5ea0d4SBryan Schumaker #define encode_secinfo_maxsz (op_encode_hdr_maxsz + nfs4_name_maxsz) 2641650add2SBryan Schumaker #define decode_secinfo_maxsz (op_decode_hdr_maxsz + 1 + ((NFS_MAX_SECFLAVORS * (16 + GSS_OID_MAX_LEN)) / 4)) 2659b7b9fccSAndy Adamson 2669b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 267fc931582SAndy Adamson #define NFS4_MAX_MACHINE_NAME_LEN (64) 268fc931582SAndy Adamson 26999fe60d0SBenny Halevy #define encode_exchange_id_maxsz (op_encode_hdr_maxsz + \ 27099fe60d0SBenny Halevy encode_verifier_maxsz + \ 27199fe60d0SBenny Halevy 1 /* co_ownerid.len */ + \ 27299fe60d0SBenny Halevy XDR_QUADLEN(NFS4_EXCHANGE_ID_LEN) + \ 27399fe60d0SBenny Halevy 1 /* flags */ + \ 27499fe60d0SBenny Halevy 1 /* spa_how */ + \ 27599fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 276db8ac8baSWeston Andros Adamson 1 /* implementation id array of size 1 */ + \ 277db8ac8baSWeston Andros Adamson 1 /* nii_domain */ + \ 278db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 279db8ac8baSWeston Andros Adamson 1 /* nii_name */ + \ 280db8ac8baSWeston Andros Adamson XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + \ 281db8ac8baSWeston Andros Adamson 3 /* nii_date */) 28299fe60d0SBenny Halevy #define decode_exchange_id_maxsz (op_decode_hdr_maxsz + \ 28399fe60d0SBenny Halevy 2 /* eir_clientid */ + \ 28499fe60d0SBenny Halevy 1 /* eir_sequenceid */ + \ 28599fe60d0SBenny Halevy 1 /* eir_flags */ + \ 28699fe60d0SBenny Halevy 1 /* spr_how */ + \ 28799fe60d0SBenny Halevy 0 /* SP4_NONE (for now) */ + \ 28899fe60d0SBenny Halevy 2 /* eir_server_owner.so_minor_id */ + \ 28999fe60d0SBenny Halevy /* eir_server_owner.so_major_id<> */ \ 29099fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 29199fe60d0SBenny Halevy /* eir_server_scope<> */ \ 29299fe60d0SBenny Halevy XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 + \ 29399fe60d0SBenny Halevy 1 /* eir_server_impl_id array length */ + \ 29499fe60d0SBenny Halevy 0 /* ignored eir_server_impl_id contents */) 295fc931582SAndy Adamson #define encode_channel_attrs_maxsz (6 + 1 /* ca_rdma_ird.len (0) */) 296fc931582SAndy Adamson #define decode_channel_attrs_maxsz (6 + \ 297fc931582SAndy Adamson 1 /* ca_rdma_ird.len */ + \ 298fc931582SAndy Adamson 1 /* ca_rdma_ird */) 299fc931582SAndy Adamson #define encode_create_session_maxsz (op_encode_hdr_maxsz + \ 300fc931582SAndy Adamson 2 /* csa_clientid */ + \ 301fc931582SAndy Adamson 1 /* csa_sequence */ + \ 302fc931582SAndy Adamson 1 /* csa_flags */ + \ 303fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 304fc931582SAndy Adamson encode_channel_attrs_maxsz + \ 305fc931582SAndy Adamson 1 /* csa_cb_program */ + \ 306fc931582SAndy Adamson 1 /* csa_sec_parms.len (1) */ + \ 307fc931582SAndy Adamson 1 /* cb_secflavor (AUTH_SYS) */ + \ 308fc931582SAndy Adamson 1 /* stamp */ + \ 309fc931582SAndy Adamson 1 /* machinename.len */ + \ 310fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_MACHINE_NAME_LEN) + \ 311fc931582SAndy Adamson 1 /* uid */ + \ 312fc931582SAndy Adamson 1 /* gid */ + \ 313fc931582SAndy Adamson 1 /* gids.len (0) */) 314fc931582SAndy Adamson #define decode_create_session_maxsz (op_decode_hdr_maxsz + \ 315fc931582SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \ 316fc931582SAndy Adamson 1 /* csr_sequence */ + \ 317fc931582SAndy Adamson 1 /* csr_flags */ + \ 318fc931582SAndy Adamson decode_channel_attrs_maxsz + \ 319fc931582SAndy Adamson decode_channel_attrs_maxsz) 3200f3e66c6SAndy Adamson #define encode_destroy_session_maxsz (op_encode_hdr_maxsz + 4) 3210f3e66c6SAndy Adamson #define decode_destroy_session_maxsz (op_decode_hdr_maxsz) 322fc01cea9SAndy Adamson #define encode_sequence_maxsz (op_encode_hdr_maxsz + \ 323fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 4) 324fc01cea9SAndy Adamson #define decode_sequence_maxsz (op_decode_hdr_maxsz + \ 325fc01cea9SAndy Adamson XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + 5) 32618019753SRicardo Labiaga #define encode_reclaim_complete_maxsz (op_encode_hdr_maxsz + 4) 32718019753SRicardo Labiaga #define decode_reclaim_complete_maxsz (op_decode_hdr_maxsz + 4) 3287f11d8d3SAndy Adamson #define encode_getdevicelist_maxsz (op_encode_hdr_maxsz + 4 + \ 3297f11d8d3SAndy Adamson encode_verifier_maxsz) 3307f11d8d3SAndy Adamson #define decode_getdevicelist_maxsz (op_decode_hdr_maxsz + \ 3317f11d8d3SAndy Adamson 2 /* nfs_cookie4 gdlr_cookie */ + \ 3327f11d8d3SAndy Adamson decode_verifier_maxsz \ 3337f11d8d3SAndy Adamson /* verifier4 gdlr_verifier */ + \ 3347f11d8d3SAndy Adamson 1 /* gdlr_deviceid_list count */ + \ 3357f11d8d3SAndy Adamson XDR_QUADLEN(NFS4_PNFS_GETDEVLIST_MAXNUM * \ 3367f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE) \ 3377f11d8d3SAndy Adamson /* gdlr_deviceid_list */ + \ 3387f11d8d3SAndy Adamson 1 /* bool gdlr_eof */) 339b1f69b75SAndy Adamson #define encode_getdeviceinfo_maxsz (op_encode_hdr_maxsz + 4 + \ 340b1f69b75SAndy Adamson XDR_QUADLEN(NFS4_DEVICEID4_SIZE)) 341b1f69b75SAndy Adamson #define decode_getdeviceinfo_maxsz (op_decode_hdr_maxsz + \ 342b1f69b75SAndy Adamson 1 /* layout type */ + \ 343b1f69b75SAndy Adamson 1 /* opaque devaddr4 length */ + \ 344b1f69b75SAndy Adamson /* devaddr4 payload is read into page */ \ 345b1f69b75SAndy Adamson 1 /* notification bitmap length */ + \ 346b1f69b75SAndy Adamson 1 /* notification bitmap */) 347b1f69b75SAndy Adamson #define encode_layoutget_maxsz (op_encode_hdr_maxsz + 10 + \ 348b1f69b75SAndy Adamson encode_stateid_maxsz) 349b1f69b75SAndy Adamson #define decode_layoutget_maxsz (op_decode_hdr_maxsz + 8 + \ 350b1f69b75SAndy Adamson decode_stateid_maxsz + \ 351b1f69b75SAndy Adamson XDR_QUADLEN(PNFS_LAYOUT_MAXSIZE)) 352863a3c6cSAndy Adamson #define encode_layoutcommit_maxsz (op_encode_hdr_maxsz + \ 353863a3c6cSAndy Adamson 2 /* offset */ + \ 354863a3c6cSAndy Adamson 2 /* length */ + \ 355863a3c6cSAndy Adamson 1 /* reclaim */ + \ 356863a3c6cSAndy Adamson encode_stateid_maxsz + \ 357863a3c6cSAndy Adamson 1 /* new offset (true) */ + \ 358863a3c6cSAndy Adamson 2 /* last byte written */ + \ 359863a3c6cSAndy Adamson 1 /* nt_timechanged (false) */ + \ 360863a3c6cSAndy Adamson 1 /* layoutupdate4 layout type */ + \ 361863a3c6cSAndy Adamson 1 /* NULL filelayout layoutupdate4 payload */) 362863a3c6cSAndy Adamson #define decode_layoutcommit_maxsz (op_decode_hdr_maxsz + 3) 363cbe82603SBenny Halevy #define encode_layoutreturn_maxsz (8 + op_encode_hdr_maxsz + \ 364cbe82603SBenny Halevy encode_stateid_maxsz + \ 365cbe82603SBenny Halevy 1 /* FIXME: opaque lrf_body always empty at the moment */) 366cbe82603SBenny Halevy #define decode_layoutreturn_maxsz (op_decode_hdr_maxsz + \ 367cbe82603SBenny Halevy 1 + decode_stateid_maxsz) 368fca78d6dSBryan Schumaker #define encode_secinfo_no_name_maxsz (op_encode_hdr_maxsz + 1) 369fca78d6dSBryan Schumaker #define decode_secinfo_no_name_maxsz decode_secinfo_maxsz 3707d974794SBryan Schumaker #define encode_test_stateid_maxsz (op_encode_hdr_maxsz + 2 + \ 3717d974794SBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3727d974794SBryan Schumaker #define decode_test_stateid_maxsz (op_decode_hdr_maxsz + 2 + 1) 3739aeda35fSBryan Schumaker #define encode_free_stateid_maxsz (op_encode_hdr_maxsz + 1 + \ 3749aeda35fSBryan Schumaker XDR_QUADLEN(NFS4_STATEID_SIZE)) 3759aeda35fSBryan Schumaker #define decode_free_stateid_maxsz (op_decode_hdr_maxsz + 1) 3769b7b9fccSAndy Adamson #else /* CONFIG_NFS_V4_1 */ 3779b7b9fccSAndy Adamson #define encode_sequence_maxsz 0 3789b7b9fccSAndy Adamson #define decode_sequence_maxsz 0 3799b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 3809b7b9fccSAndy Adamson 3811da177e4SLinus Torvalds #define NFS4_enc_compound_sz (1024) /* XXX: large enough? */ 3821da177e4SLinus Torvalds #define NFS4_dec_compound_sz (1024) /* XXX: large enough? */ 3831da177e4SLinus Torvalds #define NFS4_enc_read_sz (compound_encode_hdr_maxsz + \ 3849b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3851da177e4SLinus Torvalds encode_putfh_maxsz + \ 3869104a55dSTrond Myklebust encode_read_maxsz) 3871da177e4SLinus Torvalds #define NFS4_dec_read_sz (compound_decode_hdr_maxsz + \ 3889b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3891da177e4SLinus Torvalds decode_putfh_maxsz + \ 3909104a55dSTrond Myklebust decode_read_maxsz) 3911da177e4SLinus Torvalds #define NFS4_enc_readlink_sz (compound_encode_hdr_maxsz + \ 3929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 3931da177e4SLinus Torvalds encode_putfh_maxsz + \ 3949104a55dSTrond Myklebust encode_readlink_maxsz) 3951da177e4SLinus Torvalds #define NFS4_dec_readlink_sz (compound_decode_hdr_maxsz + \ 3969b7b9fccSAndy Adamson decode_sequence_maxsz + \ 3971da177e4SLinus Torvalds decode_putfh_maxsz + \ 3989104a55dSTrond Myklebust decode_readlink_maxsz) 3991da177e4SLinus Torvalds #define NFS4_enc_readdir_sz (compound_encode_hdr_maxsz + \ 4009b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4011da177e4SLinus Torvalds encode_putfh_maxsz + \ 4029104a55dSTrond Myklebust encode_readdir_maxsz) 4031da177e4SLinus Torvalds #define NFS4_dec_readdir_sz (compound_decode_hdr_maxsz + \ 4049b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4051da177e4SLinus Torvalds decode_putfh_maxsz + \ 4069104a55dSTrond Myklebust decode_readdir_maxsz) 4071da177e4SLinus Torvalds #define NFS4_enc_write_sz (compound_encode_hdr_maxsz + \ 4089b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4091da177e4SLinus Torvalds encode_putfh_maxsz + \ 4109104a55dSTrond Myklebust encode_write_maxsz + \ 4114f9838c7STrond Myklebust encode_getattr_maxsz) 4121da177e4SLinus Torvalds #define NFS4_dec_write_sz (compound_decode_hdr_maxsz + \ 4139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4141da177e4SLinus Torvalds decode_putfh_maxsz + \ 4159104a55dSTrond Myklebust decode_write_maxsz + \ 4164f9838c7STrond Myklebust decode_getattr_maxsz) 4171da177e4SLinus Torvalds #define NFS4_enc_commit_sz (compound_encode_hdr_maxsz + \ 4189b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4191da177e4SLinus Torvalds encode_putfh_maxsz + \ 4209104a55dSTrond Myklebust encode_commit_maxsz + \ 4214f9838c7STrond Myklebust encode_getattr_maxsz) 4221da177e4SLinus Torvalds #define NFS4_dec_commit_sz (compound_decode_hdr_maxsz + \ 4239b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4241da177e4SLinus Torvalds decode_putfh_maxsz + \ 4259104a55dSTrond Myklebust decode_commit_maxsz + \ 4264f9838c7STrond Myklebust decode_getattr_maxsz) 4271da177e4SLinus Torvalds #define NFS4_enc_open_sz (compound_encode_hdr_maxsz + \ 4289b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4291da177e4SLinus Torvalds encode_putfh_maxsz + \ 4302cebf828STrond Myklebust encode_savefh_maxsz + \ 4312cebf828STrond Myklebust encode_open_maxsz + \ 4322cebf828STrond Myklebust encode_getfh_maxsz + \ 4331da177e4SLinus Torvalds encode_getattr_maxsz + \ 4342cebf828STrond Myklebust encode_restorefh_maxsz + \ 4352cebf828STrond Myklebust encode_getattr_maxsz) 4361da177e4SLinus Torvalds #define NFS4_dec_open_sz (compound_decode_hdr_maxsz + \ 4379b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4381da177e4SLinus Torvalds decode_putfh_maxsz + \ 4392cebf828STrond Myklebust decode_savefh_maxsz + \ 4402cebf828STrond Myklebust decode_open_maxsz + \ 4412cebf828STrond Myklebust decode_getfh_maxsz + \ 4421da177e4SLinus Torvalds decode_getattr_maxsz + \ 4432cebf828STrond Myklebust decode_restorefh_maxsz + \ 4442cebf828STrond Myklebust decode_getattr_maxsz) 4451da177e4SLinus Torvalds #define NFS4_enc_open_confirm_sz \ 4461da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4471da177e4SLinus Torvalds encode_putfh_maxsz + \ 4489104a55dSTrond Myklebust encode_open_confirm_maxsz) 4499104a55dSTrond Myklebust #define NFS4_dec_open_confirm_sz \ 4509104a55dSTrond Myklebust (compound_decode_hdr_maxsz + \ 4511da177e4SLinus Torvalds decode_putfh_maxsz + \ 4529104a55dSTrond Myklebust decode_open_confirm_maxsz) 4531da177e4SLinus Torvalds #define NFS4_enc_open_noattr_sz (compound_encode_hdr_maxsz + \ 4549b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4551da177e4SLinus Torvalds encode_putfh_maxsz + \ 4562cebf828STrond Myklebust encode_open_maxsz + \ 4572cebf828STrond Myklebust encode_getattr_maxsz) 4581da177e4SLinus Torvalds #define NFS4_dec_open_noattr_sz (compound_decode_hdr_maxsz + \ 4599b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4601da177e4SLinus Torvalds decode_putfh_maxsz + \ 4612cebf828STrond Myklebust decode_open_maxsz + \ 4622cebf828STrond Myklebust decode_getattr_maxsz) 4631da177e4SLinus Torvalds #define NFS4_enc_open_downgrade_sz \ 4641da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 4659b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4661da177e4SLinus Torvalds encode_putfh_maxsz + \ 4679104a55dSTrond Myklebust encode_open_downgrade_maxsz + \ 468516a6af6STrond Myklebust encode_getattr_maxsz) 4691da177e4SLinus Torvalds #define NFS4_dec_open_downgrade_sz \ 4701da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 4719b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4721da177e4SLinus Torvalds decode_putfh_maxsz + \ 4739104a55dSTrond Myklebust decode_open_downgrade_maxsz + \ 474516a6af6STrond Myklebust decode_getattr_maxsz) 4751da177e4SLinus Torvalds #define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \ 4769b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4771da177e4SLinus Torvalds encode_putfh_maxsz + \ 4789104a55dSTrond Myklebust encode_close_maxsz + \ 479516a6af6STrond Myklebust encode_getattr_maxsz) 4801da177e4SLinus Torvalds #define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \ 4819b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4821da177e4SLinus Torvalds decode_putfh_maxsz + \ 4839104a55dSTrond Myklebust decode_close_maxsz + \ 484516a6af6STrond Myklebust decode_getattr_maxsz) 4851da177e4SLinus Torvalds #define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \ 4869b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4871da177e4SLinus Torvalds encode_putfh_maxsz + \ 4889104a55dSTrond Myklebust encode_setattr_maxsz + \ 4891da177e4SLinus Torvalds encode_getattr_maxsz) 4901da177e4SLinus Torvalds #define NFS4_dec_setattr_sz (compound_decode_hdr_maxsz + \ 4919b7b9fccSAndy Adamson decode_sequence_maxsz + \ 4921da177e4SLinus Torvalds decode_putfh_maxsz + \ 4939104a55dSTrond Myklebust decode_setattr_maxsz + \ 4949104a55dSTrond Myklebust decode_getattr_maxsz) 4951da177e4SLinus Torvalds #define NFS4_enc_fsinfo_sz (compound_encode_hdr_maxsz + \ 4969b7b9fccSAndy Adamson encode_sequence_maxsz + \ 4971da177e4SLinus Torvalds encode_putfh_maxsz + \ 4981da177e4SLinus Torvalds encode_fsinfo_maxsz) 4991da177e4SLinus Torvalds #define NFS4_dec_fsinfo_sz (compound_decode_hdr_maxsz + \ 5009b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5011da177e4SLinus Torvalds decode_putfh_maxsz + \ 5021da177e4SLinus Torvalds decode_fsinfo_maxsz) 5031da177e4SLinus Torvalds #define NFS4_enc_renew_sz (compound_encode_hdr_maxsz + \ 5041da177e4SLinus Torvalds encode_renew_maxsz) 5051da177e4SLinus Torvalds #define NFS4_dec_renew_sz (compound_decode_hdr_maxsz + \ 5061da177e4SLinus Torvalds decode_renew_maxsz) 5071da177e4SLinus Torvalds #define NFS4_enc_setclientid_sz (compound_encode_hdr_maxsz + \ 5081da177e4SLinus Torvalds encode_setclientid_maxsz) 5091da177e4SLinus Torvalds #define NFS4_dec_setclientid_sz (compound_decode_hdr_maxsz + \ 5101da177e4SLinus Torvalds decode_setclientid_maxsz) 5111da177e4SLinus Torvalds #define NFS4_enc_setclientid_confirm_sz \ 5121da177e4SLinus Torvalds (compound_encode_hdr_maxsz + \ 5131da177e4SLinus Torvalds encode_setclientid_confirm_maxsz + \ 5141da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5151da177e4SLinus Torvalds encode_fsinfo_maxsz) 5161da177e4SLinus Torvalds #define NFS4_dec_setclientid_confirm_sz \ 5171da177e4SLinus Torvalds (compound_decode_hdr_maxsz + \ 5181da177e4SLinus Torvalds decode_setclientid_confirm_maxsz + \ 5191da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5201da177e4SLinus Torvalds decode_fsinfo_maxsz) 5211da177e4SLinus Torvalds #define NFS4_enc_lock_sz (compound_encode_hdr_maxsz + \ 5229b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5231da177e4SLinus Torvalds encode_putfh_maxsz + \ 5249104a55dSTrond Myklebust encode_lock_maxsz) 5251da177e4SLinus Torvalds #define NFS4_dec_lock_sz (compound_decode_hdr_maxsz + \ 5269b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5271da177e4SLinus Torvalds decode_putfh_maxsz + \ 5289104a55dSTrond Myklebust decode_lock_maxsz) 5291da177e4SLinus Torvalds #define NFS4_enc_lockt_sz (compound_encode_hdr_maxsz + \ 5309b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5311da177e4SLinus Torvalds encode_putfh_maxsz + \ 5329104a55dSTrond Myklebust encode_lockt_maxsz) 5339104a55dSTrond Myklebust #define NFS4_dec_lockt_sz (compound_decode_hdr_maxsz + \ 5349b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5359104a55dSTrond Myklebust decode_putfh_maxsz + \ 5369104a55dSTrond Myklebust decode_lockt_maxsz) 5371da177e4SLinus Torvalds #define NFS4_enc_locku_sz (compound_encode_hdr_maxsz + \ 5389b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5391da177e4SLinus Torvalds encode_putfh_maxsz + \ 5409104a55dSTrond Myklebust encode_locku_maxsz) 5411da177e4SLinus Torvalds #define NFS4_dec_locku_sz (compound_decode_hdr_maxsz + \ 5429b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5431da177e4SLinus Torvalds decode_putfh_maxsz + \ 5449104a55dSTrond Myklebust decode_locku_maxsz) 545d3c7b7ccSTrond Myklebust #define NFS4_enc_release_lockowner_sz \ 546d3c7b7ccSTrond Myklebust (compound_encode_hdr_maxsz + \ 547d3c7b7ccSTrond Myklebust encode_lockowner_maxsz) 548d3c7b7ccSTrond Myklebust #define NFS4_dec_release_lockowner_sz \ 549d3c7b7ccSTrond Myklebust (compound_decode_hdr_maxsz + \ 550d3c7b7ccSTrond Myklebust decode_lockowner_maxsz) 5511da177e4SLinus Torvalds #define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \ 5529b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5531da177e4SLinus Torvalds encode_putfh_maxsz + \ 55476b32999STrond Myklebust encode_access_maxsz + \ 55576b32999STrond Myklebust encode_getattr_maxsz) 5561da177e4SLinus Torvalds #define NFS4_dec_access_sz (compound_decode_hdr_maxsz + \ 5579b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5581da177e4SLinus Torvalds decode_putfh_maxsz + \ 55976b32999STrond Myklebust decode_access_maxsz + \ 56076b32999STrond Myklebust decode_getattr_maxsz) 5611da177e4SLinus Torvalds #define NFS4_enc_getattr_sz (compound_encode_hdr_maxsz + \ 5629b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5631da177e4SLinus Torvalds encode_putfh_maxsz + \ 5641da177e4SLinus Torvalds encode_getattr_maxsz) 5651da177e4SLinus Torvalds #define NFS4_dec_getattr_sz (compound_decode_hdr_maxsz + \ 5669b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5671da177e4SLinus Torvalds decode_putfh_maxsz + \ 5681da177e4SLinus Torvalds decode_getattr_maxsz) 5691da177e4SLinus Torvalds #define NFS4_enc_lookup_sz (compound_encode_hdr_maxsz + \ 5709b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5711da177e4SLinus Torvalds encode_putfh_maxsz + \ 5721da177e4SLinus Torvalds encode_lookup_maxsz + \ 5731da177e4SLinus Torvalds encode_getattr_maxsz + \ 5741da177e4SLinus Torvalds encode_getfh_maxsz) 5751da177e4SLinus Torvalds #define NFS4_dec_lookup_sz (compound_decode_hdr_maxsz + \ 5769b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5771da177e4SLinus Torvalds decode_putfh_maxsz + \ 578e6889620STrond Myklebust decode_lookup_maxsz + \ 5791da177e4SLinus Torvalds decode_getattr_maxsz + \ 5801da177e4SLinus Torvalds decode_getfh_maxsz) 5811da177e4SLinus Torvalds #define NFS4_enc_lookup_root_sz (compound_encode_hdr_maxsz + \ 5829b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5831da177e4SLinus Torvalds encode_putrootfh_maxsz + \ 5841da177e4SLinus Torvalds encode_getattr_maxsz + \ 5851da177e4SLinus Torvalds encode_getfh_maxsz) 5861da177e4SLinus Torvalds #define NFS4_dec_lookup_root_sz (compound_decode_hdr_maxsz + \ 5879b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5881da177e4SLinus Torvalds decode_putrootfh_maxsz + \ 5891da177e4SLinus Torvalds decode_getattr_maxsz + \ 5901da177e4SLinus Torvalds decode_getfh_maxsz) 5911da177e4SLinus Torvalds #define NFS4_enc_remove_sz (compound_encode_hdr_maxsz + \ 5929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 5931da177e4SLinus Torvalds encode_putfh_maxsz + \ 59416e42959STrond Myklebust encode_remove_maxsz + \ 59516e42959STrond Myklebust encode_getattr_maxsz) 5961da177e4SLinus Torvalds #define NFS4_dec_remove_sz (compound_decode_hdr_maxsz + \ 5979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 5981da177e4SLinus Torvalds decode_putfh_maxsz + \ 5996ce18391SBenny Halevy decode_remove_maxsz + \ 60016e42959STrond Myklebust decode_getattr_maxsz) 6011da177e4SLinus Torvalds #define NFS4_enc_rename_sz (compound_encode_hdr_maxsz + \ 6029b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6031da177e4SLinus Torvalds encode_putfh_maxsz + \ 6041da177e4SLinus Torvalds encode_savefh_maxsz + \ 6051da177e4SLinus Torvalds encode_putfh_maxsz + \ 6066caf2c82STrond Myklebust encode_rename_maxsz + \ 6076caf2c82STrond Myklebust encode_getattr_maxsz + \ 6086caf2c82STrond Myklebust encode_restorefh_maxsz + \ 6096caf2c82STrond Myklebust encode_getattr_maxsz) 6101da177e4SLinus Torvalds #define NFS4_dec_rename_sz (compound_decode_hdr_maxsz + \ 6119b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6121da177e4SLinus Torvalds decode_putfh_maxsz + \ 6131da177e4SLinus Torvalds decode_savefh_maxsz + \ 6141da177e4SLinus Torvalds decode_putfh_maxsz + \ 6156caf2c82STrond Myklebust decode_rename_maxsz + \ 6166caf2c82STrond Myklebust decode_getattr_maxsz + \ 6176caf2c82STrond Myklebust decode_restorefh_maxsz + \ 6186caf2c82STrond Myklebust decode_getattr_maxsz) 6191da177e4SLinus Torvalds #define NFS4_enc_link_sz (compound_encode_hdr_maxsz + \ 6209b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6211da177e4SLinus Torvalds encode_putfh_maxsz + \ 6221da177e4SLinus Torvalds encode_savefh_maxsz + \ 6231da177e4SLinus Torvalds encode_putfh_maxsz + \ 62491ba2eeeSTrond Myklebust encode_link_maxsz + \ 62591ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 62691ba2eeeSTrond Myklebust encode_restorefh_maxsz + \ 62791ba2eeeSTrond Myklebust decode_getattr_maxsz) 6281da177e4SLinus Torvalds #define NFS4_dec_link_sz (compound_decode_hdr_maxsz + \ 6299b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6301da177e4SLinus Torvalds decode_putfh_maxsz + \ 6311da177e4SLinus Torvalds decode_savefh_maxsz + \ 6321da177e4SLinus Torvalds decode_putfh_maxsz + \ 63391ba2eeeSTrond Myklebust decode_link_maxsz + \ 63491ba2eeeSTrond Myklebust decode_getattr_maxsz + \ 63591ba2eeeSTrond Myklebust decode_restorefh_maxsz + \ 63691ba2eeeSTrond Myklebust decode_getattr_maxsz) 6371da177e4SLinus Torvalds #define NFS4_enc_symlink_sz (compound_encode_hdr_maxsz + \ 6389b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6391da177e4SLinus Torvalds encode_putfh_maxsz + \ 6401da177e4SLinus Torvalds encode_symlink_maxsz + \ 6411da177e4SLinus Torvalds encode_getattr_maxsz + \ 6421da177e4SLinus Torvalds encode_getfh_maxsz) 6431da177e4SLinus Torvalds #define NFS4_dec_symlink_sz (compound_decode_hdr_maxsz + \ 6449b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6451da177e4SLinus Torvalds decode_putfh_maxsz + \ 6461da177e4SLinus Torvalds decode_symlink_maxsz + \ 6471da177e4SLinus Torvalds decode_getattr_maxsz + \ 6481da177e4SLinus Torvalds decode_getfh_maxsz) 6491da177e4SLinus Torvalds #define NFS4_enc_create_sz (compound_encode_hdr_maxsz + \ 6509b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6511da177e4SLinus Torvalds encode_putfh_maxsz + \ 65256ae19f3STrond Myklebust encode_savefh_maxsz + \ 6531da177e4SLinus Torvalds encode_create_maxsz + \ 65456ae19f3STrond Myklebust encode_getfh_maxsz + \ 6551da177e4SLinus Torvalds encode_getattr_maxsz + \ 65656ae19f3STrond Myklebust encode_restorefh_maxsz + \ 65756ae19f3STrond Myklebust encode_getattr_maxsz) 6581da177e4SLinus Torvalds #define NFS4_dec_create_sz (compound_decode_hdr_maxsz + \ 6599b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6601da177e4SLinus Torvalds decode_putfh_maxsz + \ 66156ae19f3STrond Myklebust decode_savefh_maxsz + \ 6621da177e4SLinus Torvalds decode_create_maxsz + \ 66356ae19f3STrond Myklebust decode_getfh_maxsz + \ 6641da177e4SLinus Torvalds decode_getattr_maxsz + \ 66556ae19f3STrond Myklebust decode_restorefh_maxsz + \ 66656ae19f3STrond Myklebust decode_getattr_maxsz) 6671da177e4SLinus Torvalds #define NFS4_enc_pathconf_sz (compound_encode_hdr_maxsz + \ 6689b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6691da177e4SLinus Torvalds encode_putfh_maxsz + \ 6701da177e4SLinus Torvalds encode_getattr_maxsz) 6711da177e4SLinus Torvalds #define NFS4_dec_pathconf_sz (compound_decode_hdr_maxsz + \ 6729b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6731da177e4SLinus Torvalds decode_putfh_maxsz + \ 6741da177e4SLinus Torvalds decode_getattr_maxsz) 6751da177e4SLinus Torvalds #define NFS4_enc_statfs_sz (compound_encode_hdr_maxsz + \ 6769b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6771da177e4SLinus Torvalds encode_putfh_maxsz + \ 6789104a55dSTrond Myklebust encode_statfs_maxsz) 6791da177e4SLinus Torvalds #define NFS4_dec_statfs_sz (compound_decode_hdr_maxsz + \ 6809b7b9fccSAndy Adamson decode_sequence_maxsz + \ 6811da177e4SLinus Torvalds decode_putfh_maxsz + \ 6829104a55dSTrond Myklebust decode_statfs_maxsz) 6831da177e4SLinus Torvalds #define NFS4_enc_server_caps_sz (compound_encode_hdr_maxsz + \ 6849b7b9fccSAndy Adamson encode_sequence_maxsz + \ 685ab91f264STrond Myklebust encode_putfh_maxsz + \ 6861da177e4SLinus Torvalds encode_getattr_maxsz) 6871da177e4SLinus Torvalds #define NFS4_dec_server_caps_sz (compound_decode_hdr_maxsz + \ 6889b7b9fccSAndy Adamson decode_sequence_maxsz + \ 689ab91f264STrond Myklebust decode_putfh_maxsz + \ 6901da177e4SLinus Torvalds decode_getattr_maxsz) 6911da177e4SLinus Torvalds #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ 6929b7b9fccSAndy Adamson encode_sequence_maxsz + \ 6931da177e4SLinus Torvalds encode_putfh_maxsz + \ 694fa178f29STrond Myklebust encode_delegreturn_maxsz + \ 695fa178f29STrond Myklebust encode_getattr_maxsz) 6961da177e4SLinus Torvalds #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ 6979b7b9fccSAndy Adamson decode_sequence_maxsz + \ 698fa178f29STrond Myklebust decode_delegreturn_maxsz + \ 699fa178f29STrond Myklebust decode_getattr_maxsz) 700029d105eSJ. Bruce Fields #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ 7019b7b9fccSAndy Adamson encode_sequence_maxsz + \ 702029d105eSJ. Bruce Fields encode_putfh_maxsz + \ 7039104a55dSTrond Myklebust encode_getacl_maxsz) 704029d105eSJ. Bruce Fields #define NFS4_dec_getacl_sz (compound_decode_hdr_maxsz + \ 7059b7b9fccSAndy Adamson decode_sequence_maxsz + \ 706029d105eSJ. Bruce Fields decode_putfh_maxsz + \ 7079104a55dSTrond Myklebust decode_getacl_maxsz) 70823ec6965SJ. Bruce Fields #define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \ 7099b7b9fccSAndy Adamson encode_sequence_maxsz + \ 71023ec6965SJ. Bruce Fields encode_putfh_maxsz + \ 7119104a55dSTrond Myklebust encode_setacl_maxsz) 71223ec6965SJ. Bruce Fields #define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \ 7139b7b9fccSAndy Adamson decode_sequence_maxsz + \ 71423ec6965SJ. Bruce Fields decode_putfh_maxsz + \ 7159104a55dSTrond Myklebust decode_setacl_maxsz) 716683b57b4STrond Myklebust #define NFS4_enc_fs_locations_sz \ 717683b57b4STrond Myklebust (compound_encode_hdr_maxsz + \ 7189b7b9fccSAndy Adamson encode_sequence_maxsz + \ 719683b57b4STrond Myklebust encode_putfh_maxsz + \ 720e6889620STrond Myklebust encode_lookup_maxsz + \ 721e6889620STrond Myklebust encode_fs_locations_maxsz) 722683b57b4STrond Myklebust #define NFS4_dec_fs_locations_sz \ 723683b57b4STrond Myklebust (compound_decode_hdr_maxsz + \ 7249b7b9fccSAndy Adamson decode_sequence_maxsz + \ 725683b57b4STrond Myklebust decode_putfh_maxsz + \ 726e6889620STrond Myklebust decode_lookup_maxsz + \ 727e6889620STrond Myklebust decode_fs_locations_maxsz) 7285a5ea0d4SBryan Schumaker #define NFS4_enc_secinfo_sz (compound_encode_hdr_maxsz + \ 7295a5ea0d4SBryan Schumaker encode_sequence_maxsz + \ 7305a5ea0d4SBryan Schumaker encode_putfh_maxsz + \ 7315a5ea0d4SBryan Schumaker encode_secinfo_maxsz) 7325a5ea0d4SBryan Schumaker #define NFS4_dec_secinfo_sz (compound_decode_hdr_maxsz + \ 7335a5ea0d4SBryan Schumaker decode_sequence_maxsz + \ 7345a5ea0d4SBryan Schumaker decode_putfh_maxsz + \ 7355a5ea0d4SBryan Schumaker decode_secinfo_maxsz) 73699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 73799fe60d0SBenny Halevy #define NFS4_enc_exchange_id_sz \ 73899fe60d0SBenny Halevy (compound_encode_hdr_maxsz + \ 73999fe60d0SBenny Halevy encode_exchange_id_maxsz) 74099fe60d0SBenny Halevy #define NFS4_dec_exchange_id_sz \ 74199fe60d0SBenny Halevy (compound_decode_hdr_maxsz + \ 74299fe60d0SBenny Halevy decode_exchange_id_maxsz) 743fc931582SAndy Adamson #define NFS4_enc_create_session_sz \ 744fc931582SAndy Adamson (compound_encode_hdr_maxsz + \ 745fc931582SAndy Adamson encode_create_session_maxsz) 746fc931582SAndy Adamson #define NFS4_dec_create_session_sz \ 747fc931582SAndy Adamson (compound_decode_hdr_maxsz + \ 748fc931582SAndy Adamson decode_create_session_maxsz) 7490f3e66c6SAndy Adamson #define NFS4_enc_destroy_session_sz (compound_encode_hdr_maxsz + \ 7500f3e66c6SAndy Adamson encode_destroy_session_maxsz) 7510f3e66c6SAndy Adamson #define NFS4_dec_destroy_session_sz (compound_decode_hdr_maxsz + \ 7520f3e66c6SAndy Adamson decode_destroy_session_maxsz) 753fc01cea9SAndy Adamson #define NFS4_enc_sequence_sz \ 754fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 755fc01cea9SAndy Adamson encode_sequence_maxsz) 756fc01cea9SAndy Adamson #define NFS4_dec_sequence_sz \ 757fc01cea9SAndy Adamson (compound_decode_hdr_maxsz + \ 758fc01cea9SAndy Adamson decode_sequence_maxsz) 7592050f0ccSAndy Adamson #define NFS4_enc_get_lease_time_sz (compound_encode_hdr_maxsz + \ 7602050f0ccSAndy Adamson encode_sequence_maxsz + \ 7612050f0ccSAndy Adamson encode_putrootfh_maxsz + \ 7622050f0ccSAndy Adamson encode_fsinfo_maxsz) 7632050f0ccSAndy Adamson #define NFS4_dec_get_lease_time_sz (compound_decode_hdr_maxsz + \ 7642050f0ccSAndy Adamson decode_sequence_maxsz + \ 7652050f0ccSAndy Adamson decode_putrootfh_maxsz + \ 7662050f0ccSAndy Adamson decode_fsinfo_maxsz) 76718019753SRicardo Labiaga #define NFS4_enc_reclaim_complete_sz (compound_encode_hdr_maxsz + \ 76818019753SRicardo Labiaga encode_sequence_maxsz + \ 76918019753SRicardo Labiaga encode_reclaim_complete_maxsz) 77018019753SRicardo Labiaga #define NFS4_dec_reclaim_complete_sz (compound_decode_hdr_maxsz + \ 77118019753SRicardo Labiaga decode_sequence_maxsz + \ 77218019753SRicardo Labiaga decode_reclaim_complete_maxsz) 7737f11d8d3SAndy Adamson #define NFS4_enc_getdevicelist_sz (compound_encode_hdr_maxsz + \ 7747f11d8d3SAndy Adamson encode_sequence_maxsz + \ 7757f11d8d3SAndy Adamson encode_putfh_maxsz + \ 7767f11d8d3SAndy Adamson encode_getdevicelist_maxsz) 7777f11d8d3SAndy Adamson #define NFS4_dec_getdevicelist_sz (compound_decode_hdr_maxsz + \ 7787f11d8d3SAndy Adamson decode_sequence_maxsz + \ 7797f11d8d3SAndy Adamson decode_putfh_maxsz + \ 7807f11d8d3SAndy Adamson decode_getdevicelist_maxsz) 781b1f69b75SAndy Adamson #define NFS4_enc_getdeviceinfo_sz (compound_encode_hdr_maxsz + \ 782b1f69b75SAndy Adamson encode_sequence_maxsz +\ 783b1f69b75SAndy Adamson encode_getdeviceinfo_maxsz) 784b1f69b75SAndy Adamson #define NFS4_dec_getdeviceinfo_sz (compound_decode_hdr_maxsz + \ 785b1f69b75SAndy Adamson decode_sequence_maxsz + \ 786b1f69b75SAndy Adamson decode_getdeviceinfo_maxsz) 787b1f69b75SAndy Adamson #define NFS4_enc_layoutget_sz (compound_encode_hdr_maxsz + \ 788b1f69b75SAndy Adamson encode_sequence_maxsz + \ 789b1f69b75SAndy Adamson encode_putfh_maxsz + \ 790b1f69b75SAndy Adamson encode_layoutget_maxsz) 791b1f69b75SAndy Adamson #define NFS4_dec_layoutget_sz (compound_decode_hdr_maxsz + \ 792b1f69b75SAndy Adamson decode_sequence_maxsz + \ 793b1f69b75SAndy Adamson decode_putfh_maxsz + \ 794b1f69b75SAndy Adamson decode_layoutget_maxsz) 795863a3c6cSAndy Adamson #define NFS4_enc_layoutcommit_sz (compound_encode_hdr_maxsz + \ 796863a3c6cSAndy Adamson encode_sequence_maxsz +\ 797863a3c6cSAndy Adamson encode_putfh_maxsz + \ 798863a3c6cSAndy Adamson encode_layoutcommit_maxsz + \ 799863a3c6cSAndy Adamson encode_getattr_maxsz) 800863a3c6cSAndy Adamson #define NFS4_dec_layoutcommit_sz (compound_decode_hdr_maxsz + \ 801863a3c6cSAndy Adamson decode_sequence_maxsz + \ 802863a3c6cSAndy Adamson decode_putfh_maxsz + \ 803863a3c6cSAndy Adamson decode_layoutcommit_maxsz + \ 804863a3c6cSAndy Adamson decode_getattr_maxsz) 805cbe82603SBenny Halevy #define NFS4_enc_layoutreturn_sz (compound_encode_hdr_maxsz + \ 806cbe82603SBenny Halevy encode_sequence_maxsz + \ 807cbe82603SBenny Halevy encode_putfh_maxsz + \ 808cbe82603SBenny Halevy encode_layoutreturn_maxsz) 809cbe82603SBenny Halevy #define NFS4_dec_layoutreturn_sz (compound_decode_hdr_maxsz + \ 810cbe82603SBenny Halevy decode_sequence_maxsz + \ 811cbe82603SBenny Halevy decode_putfh_maxsz + \ 812cbe82603SBenny Halevy decode_layoutreturn_maxsz) 813fca78d6dSBryan Schumaker #define NFS4_enc_secinfo_no_name_sz (compound_encode_hdr_maxsz + \ 814fca78d6dSBryan Schumaker encode_sequence_maxsz + \ 815fca78d6dSBryan Schumaker encode_putrootfh_maxsz +\ 816fca78d6dSBryan Schumaker encode_secinfo_no_name_maxsz) 817fca78d6dSBryan Schumaker #define NFS4_dec_secinfo_no_name_sz (compound_decode_hdr_maxsz + \ 818fca78d6dSBryan Schumaker decode_sequence_maxsz + \ 819fca78d6dSBryan Schumaker decode_putrootfh_maxsz + \ 820fca78d6dSBryan Schumaker decode_secinfo_no_name_maxsz) 8217d974794SBryan Schumaker #define NFS4_enc_test_stateid_sz (compound_encode_hdr_maxsz + \ 8227d974794SBryan Schumaker encode_sequence_maxsz + \ 8237d974794SBryan Schumaker encode_test_stateid_maxsz) 8247d974794SBryan Schumaker #define NFS4_dec_test_stateid_sz (compound_decode_hdr_maxsz + \ 8257d974794SBryan Schumaker decode_sequence_maxsz + \ 8267d974794SBryan Schumaker decode_test_stateid_maxsz) 8279aeda35fSBryan Schumaker #define NFS4_enc_free_stateid_sz (compound_encode_hdr_maxsz + \ 8289aeda35fSBryan Schumaker encode_sequence_maxsz + \ 8299aeda35fSBryan Schumaker encode_free_stateid_maxsz) 8309aeda35fSBryan Schumaker #define NFS4_dec_free_stateid_sz (compound_decode_hdr_maxsz + \ 8319aeda35fSBryan Schumaker decode_sequence_maxsz + \ 8329aeda35fSBryan Schumaker decode_free_stateid_maxsz) 8332449ea2eSAlexandros Batsakis 8342449ea2eSAlexandros Batsakis const u32 nfs41_maxwrite_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8352449ea2eSAlexandros Batsakis compound_encode_hdr_maxsz + 8362449ea2eSAlexandros Batsakis encode_sequence_maxsz + 8372449ea2eSAlexandros Batsakis encode_putfh_maxsz + 8382449ea2eSAlexandros Batsakis encode_getattr_maxsz) * 8392449ea2eSAlexandros Batsakis XDR_UNIT); 8402449ea2eSAlexandros Batsakis 8412449ea2eSAlexandros Batsakis const u32 nfs41_maxread_overhead = ((RPC_MAX_HEADER_WITH_AUTH + 8422449ea2eSAlexandros Batsakis compound_decode_hdr_maxsz + 8432449ea2eSAlexandros Batsakis decode_sequence_maxsz + 8442449ea2eSAlexandros Batsakis decode_putfh_maxsz) * 8452449ea2eSAlexandros Batsakis XDR_UNIT); 84699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 8471da177e4SLinus Torvalds 848db8ac8baSWeston Andros Adamson static unsigned short send_implementation_id = 1; 849db8ac8baSWeston Andros Adamson 850db8ac8baSWeston Andros Adamson module_param(send_implementation_id, ushort, 0644); 851db8ac8baSWeston Andros Adamson MODULE_PARM_DESC(send_implementation_id, 852db8ac8baSWeston Andros Adamson "Send implementation ID with NFSv4.1 exchange_id"); 853db8ac8baSWeston Andros Adamson 854bca79478STrond Myklebust static const umode_t nfs_type2fmt[] = { 855bca79478STrond Myklebust [NF4BAD] = 0, 856bca79478STrond Myklebust [NF4REG] = S_IFREG, 857bca79478STrond Myklebust [NF4DIR] = S_IFDIR, 858bca79478STrond Myklebust [NF4BLK] = S_IFBLK, 859bca79478STrond Myklebust [NF4CHR] = S_IFCHR, 860bca79478STrond Myklebust [NF4LNK] = S_IFLNK, 861bca79478STrond Myklebust [NF4SOCK] = S_IFSOCK, 862bca79478STrond Myklebust [NF4FIFO] = S_IFIFO, 863bca79478STrond Myklebust [NF4ATTRDIR] = 0, 864bca79478STrond Myklebust [NF4NAMEDATTR] = 0, 8651da177e4SLinus Torvalds }; 8661da177e4SLinus Torvalds 8671da177e4SLinus Torvalds struct compound_hdr { 8681da177e4SLinus Torvalds int32_t status; 8691da177e4SLinus Torvalds uint32_t nops; 870d017931cSAndy Adamson __be32 * nops_p; 8711da177e4SLinus Torvalds uint32_t taglen; 8721da177e4SLinus Torvalds char * tag; 8730c4e8c18SBenny Halevy uint32_t replen; /* expected reply words */ 87466cc0429SBenny Halevy u32 minorversion; 8751da177e4SLinus Torvalds }; 8761da177e4SLinus Torvalds 87713c65ce9SBenny Halevy static __be32 *reserve_space(struct xdr_stream *xdr, size_t nbytes) 87813c65ce9SBenny Halevy { 87913c65ce9SBenny Halevy __be32 *p = xdr_reserve_space(xdr, nbytes); 88013c65ce9SBenny Halevy BUG_ON(!p); 88113c65ce9SBenny Halevy return p; 88213c65ce9SBenny Halevy } 8831da177e4SLinus Torvalds 8841da177e4SLinus Torvalds static void encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) 8851da177e4SLinus Torvalds { 8868687b63aSAl Viro __be32 *p; 8871da177e4SLinus Torvalds 8881da177e4SLinus Torvalds p = xdr_reserve_space(xdr, 4 + len); 8891da177e4SLinus Torvalds BUG_ON(p == NULL); 8901da177e4SLinus Torvalds xdr_encode_opaque(p, str, len); 8911da177e4SLinus Torvalds } 8921da177e4SLinus Torvalds 8930c4e8c18SBenny Halevy static void encode_compound_hdr(struct xdr_stream *xdr, 8940c4e8c18SBenny Halevy struct rpc_rqst *req, 8950c4e8c18SBenny Halevy struct compound_hdr *hdr) 8961da177e4SLinus Torvalds { 8978687b63aSAl Viro __be32 *p; 898a17c2153STrond Myklebust struct rpc_auth *auth = req->rq_cred->cr_auth; 8990c4e8c18SBenny Halevy 9000c4e8c18SBenny Halevy /* initialize running count of expected bytes in reply. 9010c4e8c18SBenny Halevy * NOTE: the replied tag SHOULD be the same is the one sent, 9020c4e8c18SBenny Halevy * but this is not required as a MUST for the server to do so. */ 9030c4e8c18SBenny Halevy hdr->replen = RPC_REPHDRSIZE + auth->au_rslack + 3 + hdr->taglen; 9041da177e4SLinus Torvalds 9051da177e4SLinus Torvalds dprintk("encode_compound: tag=%.*s\n", (int)hdr->taglen, hdr->tag); 9061da177e4SLinus Torvalds BUG_ON(hdr->taglen > NFS4_MAXTAGLEN); 907811652bdSBenny Halevy p = reserve_space(xdr, 4 + hdr->taglen + 8); 908811652bdSBenny Halevy p = xdr_encode_opaque(p, hdr->tag, hdr->taglen); 909e75bc1c8SBenny Halevy *p++ = cpu_to_be32(hdr->minorversion); 910d017931cSAndy Adamson hdr->nops_p = p; 91134558513SBenny Halevy *p = cpu_to_be32(hdr->nops); 912d017931cSAndy Adamson } 913d017931cSAndy Adamson 914d017931cSAndy Adamson static void encode_nops(struct compound_hdr *hdr) 915d017931cSAndy Adamson { 916fc931582SAndy Adamson BUG_ON(hdr->nops > NFS4_MAX_OPS); 917d017931cSAndy Adamson *hdr->nops_p = htonl(hdr->nops); 9181da177e4SLinus Torvalds } 9191da177e4SLinus Torvalds 9201da177e4SLinus Torvalds static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf) 9211da177e4SLinus Torvalds { 9228687b63aSAl Viro __be32 *p; 9231da177e4SLinus Torvalds 9241da177e4SLinus Torvalds p = xdr_reserve_space(xdr, NFS4_VERIFIER_SIZE); 9251da177e4SLinus Torvalds BUG_ON(p == NULL); 9261da177e4SLinus Torvalds xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE); 9271da177e4SLinus Torvalds } 9281da177e4SLinus Torvalds 929cf8cdbe5SAndy Adamson static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server) 9301da177e4SLinus Torvalds { 9311da177e4SLinus Torvalds char owner_name[IDMAP_NAMESZ]; 9321da177e4SLinus Torvalds char owner_group[IDMAP_NAMESZ]; 9331da177e4SLinus Torvalds int owner_namelen = 0; 9341da177e4SLinus Torvalds int owner_grouplen = 0; 9358687b63aSAl Viro __be32 *p; 9368687b63aSAl Viro __be32 *q; 9371da177e4SLinus Torvalds int len; 9381da177e4SLinus Torvalds uint32_t bmval0 = 0; 9391da177e4SLinus Torvalds uint32_t bmval1 = 0; 9401da177e4SLinus Torvalds 9411da177e4SLinus Torvalds /* 9421da177e4SLinus Torvalds * We reserve enough space to write the entire attribute buffer at once. 9431da177e4SLinus Torvalds * In the worst-case, this would be 9441da177e4SLinus Torvalds * 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime) 9451da177e4SLinus Torvalds * = 36 bytes, plus any contribution from variable-length fields 94623ec6965SJ. Bruce Fields * such as owner/group. 9471da177e4SLinus Torvalds */ 9481da177e4SLinus Torvalds len = 16; 9491da177e4SLinus Torvalds 9501da177e4SLinus Torvalds /* Sigh */ 9511da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) 9521da177e4SLinus Torvalds len += 8; 9531da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) 9541da177e4SLinus Torvalds len += 4; 9551da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 956e4fd72a1STrond Myklebust owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ); 9571da177e4SLinus Torvalds if (owner_namelen < 0) { 958fe82a183SChuck Lever dprintk("nfs: couldn't resolve uid %d to string\n", 9591da177e4SLinus Torvalds iap->ia_uid); 9601da177e4SLinus Torvalds /* XXX */ 9611da177e4SLinus Torvalds strcpy(owner_name, "nobody"); 9621da177e4SLinus Torvalds owner_namelen = sizeof("nobody") - 1; 9631da177e4SLinus Torvalds /* goto out; */ 9641da177e4SLinus Torvalds } 9651da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_namelen) << 2); 9661da177e4SLinus Torvalds } 9671da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 968e4fd72a1STrond Myklebust owner_grouplen = nfs_map_gid_to_group(server, iap->ia_gid, owner_group, IDMAP_NAMESZ); 9691da177e4SLinus Torvalds if (owner_grouplen < 0) { 970fe82a183SChuck Lever dprintk("nfs: couldn't resolve gid %d to string\n", 9711da177e4SLinus Torvalds iap->ia_gid); 9721da177e4SLinus Torvalds strcpy(owner_group, "nobody"); 9731da177e4SLinus Torvalds owner_grouplen = sizeof("nobody") - 1; 9741da177e4SLinus Torvalds /* goto out; */ 9751da177e4SLinus Torvalds } 9761da177e4SLinus Torvalds len += 4 + (XDR_QUADLEN(owner_grouplen) << 2); 9771da177e4SLinus Torvalds } 9781da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) 9791da177e4SLinus Torvalds len += 16; 9801da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) 9811da177e4SLinus Torvalds len += 4; 9821da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) 9831da177e4SLinus Torvalds len += 16; 9841da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) 9851da177e4SLinus Torvalds len += 4; 98613c65ce9SBenny Halevy p = reserve_space(xdr, len); 9871da177e4SLinus Torvalds 9881da177e4SLinus Torvalds /* 9891da177e4SLinus Torvalds * We write the bitmap length now, but leave the bitmap and the attribute 9901da177e4SLinus Torvalds * buffer length to be backfilled at the end of this routine. 9911da177e4SLinus Torvalds */ 992e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 9931da177e4SLinus Torvalds q = p; 9941da177e4SLinus Torvalds p += 3; 9951da177e4SLinus Torvalds 9961da177e4SLinus Torvalds if (iap->ia_valid & ATTR_SIZE) { 9971da177e4SLinus Torvalds bmval0 |= FATTR4_WORD0_SIZE; 998b95be5a9SBenny Halevy p = xdr_encode_hyper(p, iap->ia_size); 9991da177e4SLinus Torvalds } 10001da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MODE) { 10011da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_MODE; 1002e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO); 10031da177e4SLinus Torvalds } 10041da177e4SLinus Torvalds if (iap->ia_valid & ATTR_UID) { 10051da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER; 1006811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_name, owner_namelen); 10071da177e4SLinus Torvalds } 10081da177e4SLinus Torvalds if (iap->ia_valid & ATTR_GID) { 10091da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_OWNER_GROUP; 1010811652bdSBenny Halevy p = xdr_encode_opaque(p, owner_group, owner_grouplen); 10111da177e4SLinus Torvalds } 10121da177e4SLinus Torvalds if (iap->ia_valid & ATTR_ATIME_SET) { 10131da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1014e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1015e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1016d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_sec); 1017d3f6baaaSTrond Myklebust *p++ = cpu_to_be32(iap->ia_atime.tv_nsec); 10181da177e4SLinus Torvalds } 10191da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_ATIME) { 10201da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET; 1021e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10221da177e4SLinus Torvalds } 10231da177e4SLinus Torvalds if (iap->ia_valid & ATTR_MTIME_SET) { 10241da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1025e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME); 1026e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 1027e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_sec); 1028e75bc1c8SBenny Halevy *p++ = cpu_to_be32(iap->ia_mtime.tv_nsec); 10291da177e4SLinus Torvalds } 10301da177e4SLinus Torvalds else if (iap->ia_valid & ATTR_MTIME) { 10311da177e4SLinus Torvalds bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET; 1032e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME); 10331da177e4SLinus Torvalds } 10341da177e4SLinus Torvalds 10351da177e4SLinus Torvalds /* 10361da177e4SLinus Torvalds * Now we backfill the bitmap and the attribute buffer length. 10371da177e4SLinus Torvalds */ 10381da177e4SLinus Torvalds if (len != ((char *)p - (char *)q) + 4) { 1039f9fd2d9cSWeston Andros Adamson printk(KERN_ERR "NFS: Attr length error, %u != %Zu\n", 10401da177e4SLinus Torvalds len, ((char *)p - (char *)q) + 4); 10411da177e4SLinus Torvalds BUG(); 10421da177e4SLinus Torvalds } 10431da177e4SLinus Torvalds len = (char *)p - (char *)q - 12; 10441da177e4SLinus Torvalds *q++ = htonl(bmval0); 10451da177e4SLinus Torvalds *q++ = htonl(bmval1); 104634558513SBenny Halevy *q = htonl(len); 10471da177e4SLinus Torvalds 10481da177e4SLinus Torvalds /* out: */ 10491da177e4SLinus Torvalds } 10501da177e4SLinus Torvalds 1051cf8cdbe5SAndy Adamson static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr) 10521da177e4SLinus Torvalds { 10538687b63aSAl Viro __be32 *p; 10541da177e4SLinus Torvalds 105513c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1056e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_ACCESS); 105734558513SBenny Halevy *p = cpu_to_be32(access); 1058d017931cSAndy Adamson hdr->nops++; 1059dadf0c27SBenny Halevy hdr->replen += decode_access_maxsz; 10601da177e4SLinus Torvalds } 10611da177e4SLinus Torvalds 1062cf8cdbe5SAndy Adamson static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 10631da177e4SLinus Torvalds { 10648687b63aSAl Viro __be32 *p; 10651da177e4SLinus Torvalds 106613c65ce9SBenny Halevy p = reserve_space(xdr, 8+NFS4_STATEID_SIZE); 1067e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CLOSE); 1068e75bc1c8SBenny Halevy *p++ = cpu_to_be32(arg->seqid->sequence->counter); 106934558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 1070d017931cSAndy Adamson hdr->nops++; 1071dadf0c27SBenny Halevy hdr->replen += decode_close_maxsz; 10721da177e4SLinus Torvalds } 10731da177e4SLinus Torvalds 1074cf8cdbe5SAndy Adamson static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 10751da177e4SLinus Torvalds { 10768687b63aSAl Viro __be32 *p; 10771da177e4SLinus Torvalds 107813c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1079e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_COMMIT); 1080b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 108134558513SBenny Halevy *p = cpu_to_be32(args->count); 1082d017931cSAndy Adamson hdr->nops++; 1083dadf0c27SBenny Halevy hdr->replen += decode_commit_maxsz; 10841da177e4SLinus Torvalds } 10851da177e4SLinus Torvalds 1086cf8cdbe5SAndy Adamson static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr) 10871da177e4SLinus Torvalds { 10888687b63aSAl Viro __be32 *p; 10891da177e4SLinus Torvalds 109013c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1091e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE); 109234558513SBenny Halevy *p = cpu_to_be32(create->ftype); 10931da177e4SLinus Torvalds 10941da177e4SLinus Torvalds switch (create->ftype) { 10951da177e4SLinus Torvalds case NF4LNK: 109613c65ce9SBenny Halevy p = reserve_space(xdr, 4); 109734558513SBenny Halevy *p = cpu_to_be32(create->u.symlink.len); 109894a6d753SChuck Lever xdr_write_pages(xdr, create->u.symlink.pages, 0, create->u.symlink.len); 10991da177e4SLinus Torvalds break; 11001da177e4SLinus Torvalds 11011da177e4SLinus Torvalds case NF4BLK: case NF4CHR: 110213c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1103e75bc1c8SBenny Halevy *p++ = cpu_to_be32(create->u.device.specdata1); 110434558513SBenny Halevy *p = cpu_to_be32(create->u.device.specdata2); 11051da177e4SLinus Torvalds break; 11061da177e4SLinus Torvalds 11071da177e4SLinus Torvalds default: 11081da177e4SLinus Torvalds break; 11091da177e4SLinus Torvalds } 11101da177e4SLinus Torvalds 1111811652bdSBenny Halevy encode_string(xdr, create->name->len, create->name->name); 1112d017931cSAndy Adamson hdr->nops++; 1113dadf0c27SBenny Halevy hdr->replen += decode_create_maxsz; 11141da177e4SLinus Torvalds 1115cf8cdbe5SAndy Adamson encode_attrs(xdr, create->attrs, create->server); 11161da177e4SLinus Torvalds } 11171da177e4SLinus Torvalds 1118cf8cdbe5SAndy Adamson static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr) 11191da177e4SLinus Torvalds { 11208687b63aSAl Viro __be32 *p; 11211da177e4SLinus Torvalds 112213c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1123e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1124e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 112534558513SBenny Halevy *p = cpu_to_be32(bitmap); 1126d017931cSAndy Adamson hdr->nops++; 1127dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 11281da177e4SLinus Torvalds } 11291da177e4SLinus Torvalds 1130cf8cdbe5SAndy Adamson static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr) 11311da177e4SLinus Torvalds { 11328687b63aSAl Viro __be32 *p; 11331da177e4SLinus Torvalds 113413c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1135e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_GETATTR); 1136e75bc1c8SBenny Halevy *p++ = cpu_to_be32(2); 1137e75bc1c8SBenny Halevy *p++ = cpu_to_be32(bm0); 113834558513SBenny Halevy *p = cpu_to_be32(bm1); 1139d017931cSAndy Adamson hdr->nops++; 1140dadf0c27SBenny Halevy hdr->replen += decode_getattr_maxsz; 11411da177e4SLinus Torvalds } 11421da177e4SLinus Torvalds 1143dae100c2SFred Isaman static void 1144dae100c2SFred Isaman encode_getattr_three(struct xdr_stream *xdr, 1145dae100c2SFred Isaman uint32_t bm0, uint32_t bm1, uint32_t bm2, 1146dae100c2SFred Isaman struct compound_hdr *hdr) 1147dae100c2SFred Isaman { 1148dae100c2SFred Isaman __be32 *p; 1149dae100c2SFred Isaman 1150dae100c2SFred Isaman p = reserve_space(xdr, 4); 1151dae100c2SFred Isaman *p = cpu_to_be32(OP_GETATTR); 1152dae100c2SFred Isaman if (bm2) { 1153dae100c2SFred Isaman p = reserve_space(xdr, 16); 1154dae100c2SFred Isaman *p++ = cpu_to_be32(3); 1155dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1156dae100c2SFred Isaman *p++ = cpu_to_be32(bm1); 1157dae100c2SFred Isaman *p = cpu_to_be32(bm2); 1158dae100c2SFred Isaman } else if (bm1) { 1159dae100c2SFred Isaman p = reserve_space(xdr, 12); 1160dae100c2SFred Isaman *p++ = cpu_to_be32(2); 1161dae100c2SFred Isaman *p++ = cpu_to_be32(bm0); 1162dae100c2SFred Isaman *p = cpu_to_be32(bm1); 1163dae100c2SFred Isaman } else { 1164dae100c2SFred Isaman p = reserve_space(xdr, 8); 1165dae100c2SFred Isaman *p++ = cpu_to_be32(1); 1166dae100c2SFred Isaman *p = cpu_to_be32(bm0); 1167dae100c2SFred Isaman } 1168dae100c2SFred Isaman hdr->nops++; 1169dae100c2SFred Isaman hdr->replen += decode_getattr_maxsz; 1170dae100c2SFred Isaman } 1171dae100c2SFred Isaman 1172cf8cdbe5SAndy Adamson static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11731da177e4SLinus Torvalds { 1174cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0], 1175d017931cSAndy Adamson bitmask[1] & nfs4_fattr_bitmap[1], hdr); 11761da177e4SLinus Torvalds } 11771da177e4SLinus Torvalds 1178cf8cdbe5SAndy Adamson static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 11791da177e4SLinus Torvalds { 1180dae100c2SFred Isaman encode_getattr_three(xdr, 1181dae100c2SFred Isaman bitmask[0] & nfs4_fsinfo_bitmap[0], 1182dae100c2SFred Isaman bitmask[1] & nfs4_fsinfo_bitmap[1], 1183dae100c2SFred Isaman bitmask[2] & nfs4_fsinfo_bitmap[2], 1184dae100c2SFred Isaman hdr); 11851da177e4SLinus Torvalds } 11861da177e4SLinus Torvalds 1187cf8cdbe5SAndy Adamson static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr) 1188830b8e33SManoj Naik { 1189cf8cdbe5SAndy Adamson encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0], 1190cf8cdbe5SAndy Adamson bitmask[1] & nfs4_fs_locations_bitmap[1], hdr); 1191830b8e33SManoj Naik } 1192830b8e33SManoj Naik 1193cf8cdbe5SAndy Adamson static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 11941da177e4SLinus Torvalds { 11958687b63aSAl Viro __be32 *p; 11961da177e4SLinus Torvalds 119713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 119834558513SBenny Halevy *p = cpu_to_be32(OP_GETFH); 1199d017931cSAndy Adamson hdr->nops++; 1200dadf0c27SBenny Halevy hdr->replen += decode_getfh_maxsz; 12011da177e4SLinus Torvalds } 12021da177e4SLinus Torvalds 1203cf8cdbe5SAndy Adamson static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 12041da177e4SLinus Torvalds { 12058687b63aSAl Viro __be32 *p; 12061da177e4SLinus Torvalds 120713c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1208e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LINK); 1209811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1210d017931cSAndy Adamson hdr->nops++; 1211dadf0c27SBenny Halevy hdr->replen += decode_link_maxsz; 12121da177e4SLinus Torvalds } 12131da177e4SLinus Torvalds 1214911d1aafSTrond Myklebust static inline int nfs4_lock_type(struct file_lock *fl, int block) 1215911d1aafSTrond Myklebust { 1216911d1aafSTrond Myklebust if ((fl->fl_type & (F_RDLCK|F_WRLCK|F_UNLCK)) == F_RDLCK) 1217911d1aafSTrond Myklebust return block ? NFS4_READW_LT : NFS4_READ_LT; 1218911d1aafSTrond Myklebust return block ? NFS4_WRITEW_LT : NFS4_WRITE_LT; 1219911d1aafSTrond Myklebust } 1220911d1aafSTrond Myklebust 1221911d1aafSTrond Myklebust static inline uint64_t nfs4_lock_length(struct file_lock *fl) 1222911d1aafSTrond Myklebust { 1223911d1aafSTrond Myklebust if (fl->fl_end == OFFSET_MAX) 1224911d1aafSTrond Myklebust return ~(uint64_t)0; 1225911d1aafSTrond Myklebust return fl->fl_end - fl->fl_start + 1; 1226911d1aafSTrond Myklebust } 1227911d1aafSTrond Myklebust 1228daccbdedSTrond Myklebust static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner) 1229daccbdedSTrond Myklebust { 1230daccbdedSTrond Myklebust __be32 *p; 1231daccbdedSTrond Myklebust 1232d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1233daccbdedSTrond Myklebust p = xdr_encode_hyper(p, lowner->clientid); 1234d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 1235daccbdedSTrond Myklebust p = xdr_encode_opaque_fixed(p, "lock id:", 8); 1236d035c36cSTrond Myklebust *p++ = cpu_to_be32(lowner->s_dev); 1237daccbdedSTrond Myklebust xdr_encode_hyper(p, lowner->id); 1238daccbdedSTrond Myklebust } 1239daccbdedSTrond Myklebust 12401da177e4SLinus Torvalds /* 12411da177e4SLinus Torvalds * opcode,type,reclaim,offset,length,new_lock_owner = 32 12421da177e4SLinus Torvalds * open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40 12431da177e4SLinus Torvalds */ 1244cf8cdbe5SAndy Adamson static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr) 12451da177e4SLinus Torvalds { 12468687b63aSAl Viro __be32 *p; 12471da177e4SLinus Torvalds 124813c65ce9SBenny Halevy p = reserve_space(xdr, 32); 1249e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCK); 1250e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, args->block)); 1251e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->reclaim); 1252b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1253b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 125434558513SBenny Halevy *p = cpu_to_be32(args->new_lock_owner); 1255911d1aafSTrond Myklebust if (args->new_lock_owner){ 1256daccbdedSTrond Myklebust p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1257e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->open_seqid->sequence->counter); 125893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE); 1259e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->lock_seqid->sequence->counter); 1260daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 12611da177e4SLinus Torvalds } 12621da177e4SLinus Torvalds else { 126313c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE+4); 126493f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->lock_stateid->data, NFS4_STATEID_SIZE); 126534558513SBenny Halevy *p = cpu_to_be32(args->lock_seqid->sequence->counter); 12661da177e4SLinus Torvalds } 1267d017931cSAndy Adamson hdr->nops++; 1268dadf0c27SBenny Halevy hdr->replen += decode_lock_maxsz; 12691da177e4SLinus Torvalds } 12701da177e4SLinus Torvalds 1271cf8cdbe5SAndy Adamson static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr) 12721da177e4SLinus Torvalds { 12738687b63aSAl Viro __be32 *p; 12741da177e4SLinus Torvalds 1275daccbdedSTrond Myklebust p = reserve_space(xdr, 24); 1276e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKT); 1277e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1278b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 1279b95be5a9SBenny Halevy p = xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1280daccbdedSTrond Myklebust encode_lockowner(xdr, &args->lock_owner); 1281d017931cSAndy Adamson hdr->nops++; 1282dadf0c27SBenny Halevy hdr->replen += decode_lockt_maxsz; 12831da177e4SLinus Torvalds } 12841da177e4SLinus Torvalds 1285cf8cdbe5SAndy Adamson static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr) 12861da177e4SLinus Torvalds { 12878687b63aSAl Viro __be32 *p; 12881da177e4SLinus Torvalds 128913c65ce9SBenny Halevy p = reserve_space(xdr, 12+NFS4_STATEID_SIZE+16); 1290e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOCKU); 1291e75bc1c8SBenny Halevy *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); 1292e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->seqid->sequence->counter); 129393f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 1294b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->fl->fl_start); 129534558513SBenny Halevy xdr_encode_hyper(p, nfs4_lock_length(args->fl)); 1296d017931cSAndy Adamson hdr->nops++; 1297dadf0c27SBenny Halevy hdr->replen += decode_locku_maxsz; 12981da177e4SLinus Torvalds } 12991da177e4SLinus Torvalds 1300d3c7b7ccSTrond Myklebust static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr) 1301d3c7b7ccSTrond Myklebust { 1302d3c7b7ccSTrond Myklebust __be32 *p; 1303d3c7b7ccSTrond Myklebust 1304d3c7b7ccSTrond Myklebust p = reserve_space(xdr, 4); 1305d3c7b7ccSTrond Myklebust *p = cpu_to_be32(OP_RELEASE_LOCKOWNER); 1306d3c7b7ccSTrond Myklebust encode_lockowner(xdr, lowner); 1307d3c7b7ccSTrond Myklebust hdr->nops++; 1308d3c7b7ccSTrond Myklebust hdr->replen += decode_release_lockowner_maxsz; 1309d3c7b7ccSTrond Myklebust } 1310d3c7b7ccSTrond Myklebust 1311cf8cdbe5SAndy Adamson static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 13121da177e4SLinus Torvalds { 13131da177e4SLinus Torvalds int len = name->len; 13148687b63aSAl Viro __be32 *p; 13151da177e4SLinus Torvalds 131613c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1317e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_LOOKUP); 1318811652bdSBenny Halevy xdr_encode_opaque(p, name->name, len); 1319d017931cSAndy Adamson hdr->nops++; 1320dadf0c27SBenny Halevy hdr->replen += decode_lookup_maxsz; 13211da177e4SLinus Torvalds } 13221da177e4SLinus Torvalds 1323dc0b027dSTrond Myklebust static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode) 13241da177e4SLinus Torvalds { 13258687b63aSAl Viro __be32 *p; 13261da177e4SLinus Torvalds 132713c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1328dc0b027dSTrond Myklebust switch (fmode & (FMODE_READ|FMODE_WRITE)) { 13291da177e4SLinus Torvalds case FMODE_READ: 1330e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_READ); 13311da177e4SLinus Torvalds break; 13321da177e4SLinus Torvalds case FMODE_WRITE: 1333e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_WRITE); 13341da177e4SLinus Torvalds break; 13351da177e4SLinus Torvalds case FMODE_READ|FMODE_WRITE: 1336e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_SHARE_ACCESS_BOTH); 13371da177e4SLinus Torvalds break; 13381da177e4SLinus Torvalds default: 1339e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); 13401da177e4SLinus Torvalds } 134134558513SBenny Halevy *p = cpu_to_be32(0); /* for linux, share_deny = 0 always */ 13421da177e4SLinus Torvalds } 13431da177e4SLinus Torvalds 13441da177e4SLinus Torvalds static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13451da177e4SLinus Torvalds { 13468687b63aSAl Viro __be32 *p; 13471da177e4SLinus Torvalds /* 13481da177e4SLinus Torvalds * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, 13491da177e4SLinus Torvalds * owner 4 = 32 13501da177e4SLinus Torvalds */ 135113c65ce9SBenny Halevy p = reserve_space(xdr, 8); 1352e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN); 135334558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1354dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1355d035c36cSTrond Myklebust p = reserve_space(xdr, 32); 1356b95be5a9SBenny Halevy p = xdr_encode_hyper(p, arg->clientid); 1357d035c36cSTrond Myklebust *p++ = cpu_to_be32(20); 135893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, "open id:", 8); 1359d035c36cSTrond Myklebust *p++ = cpu_to_be32(arg->server->s_dev); 136034558513SBenny Halevy xdr_encode_hyper(p, arg->id); 13611da177e4SLinus Torvalds } 13621da177e4SLinus Torvalds 13631da177e4SLinus Torvalds static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13641da177e4SLinus Torvalds { 13658687b63aSAl Viro __be32 *p; 13664882ef72SAlexandros Batsakis struct nfs_client *clp; 13671da177e4SLinus Torvalds 136813c65ce9SBenny Halevy p = reserve_space(xdr, 4); 13691da177e4SLinus Torvalds switch(arg->open_flags & O_EXCL) { 13701da177e4SLinus Torvalds case 0: 137134558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_UNCHECKED); 13721da177e4SLinus Torvalds encode_attrs(xdr, arg->u.attrs, arg->server); 13731da177e4SLinus Torvalds break; 13741da177e4SLinus Torvalds default: 13754882ef72SAlexandros Batsakis clp = arg->server->nfs_client; 1376a4432345STrond Myklebust if (clp->cl_mvops->minor_version > 0) { 13774882ef72SAlexandros Batsakis if (nfs4_has_persistent_session(clp)) { 13784882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_GUARDED); 13794882ef72SAlexandros Batsakis encode_attrs(xdr, arg->u.attrs, arg->server); 13804882ef72SAlexandros Batsakis } else { 13814882ef72SAlexandros Batsakis struct iattr dummy; 13824882ef72SAlexandros Batsakis 13834882ef72SAlexandros Batsakis *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1); 13844882ef72SAlexandros Batsakis encode_nfs4_verifier(xdr, &arg->u.verifier); 13854882ef72SAlexandros Batsakis dummy.ia_valid = 0; 13864882ef72SAlexandros Batsakis encode_attrs(xdr, &dummy, arg->server); 13874882ef72SAlexandros Batsakis } 13884882ef72SAlexandros Batsakis } else { 138934558513SBenny Halevy *p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE); 13901da177e4SLinus Torvalds encode_nfs4_verifier(xdr, &arg->u.verifier); 13911da177e4SLinus Torvalds } 13921da177e4SLinus Torvalds } 13934882ef72SAlexandros Batsakis } 13941da177e4SLinus Torvalds 13951da177e4SLinus Torvalds static void encode_opentype(struct xdr_stream *xdr, const struct nfs_openargs *arg) 13961da177e4SLinus Torvalds { 13978687b63aSAl Viro __be32 *p; 13981da177e4SLinus Torvalds 139913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14001da177e4SLinus Torvalds switch (arg->open_flags & O_CREAT) { 14011da177e4SLinus Torvalds case 0: 140234558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_NOCREATE); 14031da177e4SLinus Torvalds break; 14041da177e4SLinus Torvalds default: 14051da177e4SLinus Torvalds BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL); 140634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CREATE); 14071da177e4SLinus Torvalds encode_createmode(xdr, arg); 14081da177e4SLinus Torvalds } 14091da177e4SLinus Torvalds } 14101da177e4SLinus Torvalds 1411bd7bf9d5STrond Myklebust static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type) 14121da177e4SLinus Torvalds { 14138687b63aSAl Viro __be32 *p; 14141da177e4SLinus Torvalds 141513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 14161da177e4SLinus Torvalds switch (delegation_type) { 14171da177e4SLinus Torvalds case 0: 141834558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_NONE); 14191da177e4SLinus Torvalds break; 14201da177e4SLinus Torvalds case FMODE_READ: 142134558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_READ); 14221da177e4SLinus Torvalds break; 14231da177e4SLinus Torvalds case FMODE_WRITE|FMODE_READ: 142434558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_DELEGATE_WRITE); 14251da177e4SLinus Torvalds break; 14261da177e4SLinus Torvalds default: 14271da177e4SLinus Torvalds BUG(); 14281da177e4SLinus Torvalds } 14291da177e4SLinus Torvalds } 14301da177e4SLinus Torvalds 14311da177e4SLinus Torvalds static inline void encode_claim_null(struct xdr_stream *xdr, const struct qstr *name) 14321da177e4SLinus Torvalds { 14338687b63aSAl Viro __be32 *p; 14341da177e4SLinus Torvalds 143513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 143634558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_NULL); 14371da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14381da177e4SLinus Torvalds } 14391da177e4SLinus Torvalds 1440bd7bf9d5STrond Myklebust static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type) 14411da177e4SLinus Torvalds { 14428687b63aSAl Viro __be32 *p; 14431da177e4SLinus Torvalds 144413c65ce9SBenny Halevy p = reserve_space(xdr, 4); 144534558513SBenny Halevy *p = cpu_to_be32(NFS4_OPEN_CLAIM_PREVIOUS); 14461da177e4SLinus Torvalds encode_delegation_type(xdr, type); 14471da177e4SLinus Torvalds } 14481da177e4SLinus Torvalds 14491da177e4SLinus Torvalds static inline void encode_claim_delegate_cur(struct xdr_stream *xdr, const struct qstr *name, const nfs4_stateid *stateid) 14501da177e4SLinus Torvalds { 14518687b63aSAl Viro __be32 *p; 14521da177e4SLinus Torvalds 145313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1454e75bc1c8SBenny Halevy *p++ = cpu_to_be32(NFS4_OPEN_CLAIM_DELEGATE_CUR); 145534558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 14561da177e4SLinus Torvalds encode_string(xdr, name->len, name->name); 14571da177e4SLinus Torvalds } 14581da177e4SLinus Torvalds 1459cf8cdbe5SAndy Adamson static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr) 14601da177e4SLinus Torvalds { 14611da177e4SLinus Torvalds encode_openhdr(xdr, arg); 14621da177e4SLinus Torvalds encode_opentype(xdr, arg); 14631da177e4SLinus Torvalds switch (arg->claim) { 14641da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_NULL: 14651da177e4SLinus Torvalds encode_claim_null(xdr, arg->name); 14661da177e4SLinus Torvalds break; 14671da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_PREVIOUS: 14681da177e4SLinus Torvalds encode_claim_previous(xdr, arg->u.delegation_type); 14691da177e4SLinus Torvalds break; 14701da177e4SLinus Torvalds case NFS4_OPEN_CLAIM_DELEGATE_CUR: 14711da177e4SLinus Torvalds encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation); 14721da177e4SLinus Torvalds break; 14731da177e4SLinus Torvalds default: 14741da177e4SLinus Torvalds BUG(); 14751da177e4SLinus Torvalds } 1476d017931cSAndy Adamson hdr->nops++; 1477dadf0c27SBenny Halevy hdr->replen += decode_open_maxsz; 14781da177e4SLinus Torvalds } 14791da177e4SLinus Torvalds 1480cf8cdbe5SAndy Adamson static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr) 14811da177e4SLinus Torvalds { 14828687b63aSAl Viro __be32 *p; 14831da177e4SLinus Torvalds 148413c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1485e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_CONFIRM); 148693f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 148734558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1488d017931cSAndy Adamson hdr->nops++; 1489dadf0c27SBenny Halevy hdr->replen += decode_open_confirm_maxsz; 14901da177e4SLinus Torvalds } 14911da177e4SLinus Torvalds 1492cf8cdbe5SAndy Adamson static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr) 14931da177e4SLinus Torvalds { 14948687b63aSAl Viro __be32 *p; 14951da177e4SLinus Torvalds 149613c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4); 1497e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_OPEN_DOWNGRADE); 149893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, arg->stateid->data, NFS4_STATEID_SIZE); 149934558513SBenny Halevy *p = cpu_to_be32(arg->seqid->sequence->counter); 1500dc0b027dSTrond Myklebust encode_share_access(xdr, arg->fmode); 1501d017931cSAndy Adamson hdr->nops++; 1502dadf0c27SBenny Halevy hdr->replen += decode_open_downgrade_maxsz; 15031da177e4SLinus Torvalds } 15041da177e4SLinus Torvalds 1505cf8cdbe5SAndy Adamson static void 1506d017931cSAndy Adamson encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr) 15071da177e4SLinus Torvalds { 15081da177e4SLinus Torvalds int len = fh->size; 15098687b63aSAl Viro __be32 *p; 15101da177e4SLinus Torvalds 151113c65ce9SBenny Halevy p = reserve_space(xdr, 8 + len); 1512e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_PUTFH); 1513811652bdSBenny Halevy xdr_encode_opaque(p, fh->data, len); 1514d017931cSAndy Adamson hdr->nops++; 1515dadf0c27SBenny Halevy hdr->replen += decode_putfh_maxsz; 15161da177e4SLinus Torvalds } 15171da177e4SLinus Torvalds 1518cf8cdbe5SAndy Adamson static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) 15191da177e4SLinus Torvalds { 15208687b63aSAl Viro __be32 *p; 15211da177e4SLinus Torvalds 152213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 152334558513SBenny Halevy *p = cpu_to_be32(OP_PUTROOTFH); 1524d017931cSAndy Adamson hdr->nops++; 1525dadf0c27SBenny Halevy hdr->replen += decode_putrootfh_maxsz; 15261da177e4SLinus Torvalds } 15271da177e4SLinus Torvalds 152889d1ea65SAndy 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) 15291da177e4SLinus Torvalds { 15301da177e4SLinus Torvalds nfs4_stateid stateid; 15318687b63aSAl Viro __be32 *p; 15321da177e4SLinus Torvalds 153313c65ce9SBenny Halevy p = reserve_space(xdr, NFS4_STATEID_SIZE); 15341da177e4SLinus Torvalds if (ctx->state != NULL) { 153577041ed9STrond Myklebust nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); 153689d1ea65SAndy Adamson if (zero_seqid) 153789d1ea65SAndy Adamson stateid.stateid.seqid = 0; 153834558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); 15391da177e4SLinus Torvalds } else 154034558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 15411da177e4SLinus Torvalds } 15421da177e4SLinus Torvalds 1543cf8cdbe5SAndy Adamson static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr) 15441da177e4SLinus Torvalds { 15458687b63aSAl Viro __be32 *p; 15461da177e4SLinus Torvalds 154713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 154834558513SBenny Halevy *p = cpu_to_be32(OP_READ); 15491da177e4SLinus Torvalds 155089d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 155189d1ea65SAndy Adamson hdr->minorversion); 15521da177e4SLinus Torvalds 155313c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1554b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 155534558513SBenny Halevy *p = cpu_to_be32(args->count); 1556d017931cSAndy Adamson hdr->nops++; 1557dadf0c27SBenny Halevy hdr->replen += decode_read_maxsz; 15581da177e4SLinus Torvalds } 15591da177e4SLinus Torvalds 1560cf8cdbe5SAndy Adamson static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr) 15611da177e4SLinus Torvalds { 156228331a46STrond Myklebust uint32_t attrs[2] = { 156328331a46STrond Myklebust FATTR4_WORD0_RDATTR_ERROR, 156428331a46STrond Myklebust FATTR4_WORD1_MOUNTED_ON_FILEID, 156528331a46STrond Myklebust }; 15666f7a35bdSTrond Myklebust uint32_t dircount = readdir->count >> 1; 15678687b63aSAl Viro __be32 *p; 15681da177e4SLinus Torvalds 156982f2e547SBryan Schumaker if (readdir->plus) { 157082f2e547SBryan Schumaker attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE| 157128331a46STrond Myklebust FATTR4_WORD0_FSID|FATTR4_WORD0_FILEHANDLE|FATTR4_WORD0_FILEID; 157282f2e547SBryan Schumaker attrs[1] |= FATTR4_WORD1_MODE|FATTR4_WORD1_NUMLINKS|FATTR4_WORD1_OWNER| 157382f2e547SBryan Schumaker FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV| 157482f2e547SBryan Schumaker FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS| 157582f2e547SBryan Schumaker FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY; 15766f7a35bdSTrond Myklebust dircount >>= 1; 157782f2e547SBryan Schumaker } 157828331a46STrond Myklebust /* Use mounted_on_fileid only if the server supports it */ 157928331a46STrond Myklebust if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) 158028331a46STrond Myklebust attrs[0] |= FATTR4_WORD0_FILEID; 15816f7a35bdSTrond Myklebust 15826f7a35bdSTrond Myklebust p = reserve_space(xdr, 12+NFS4_VERIFIER_SIZE+20); 15836f7a35bdSTrond Myklebust *p++ = cpu_to_be32(OP_READDIR); 15846f7a35bdSTrond Myklebust p = xdr_encode_hyper(p, readdir->cookie); 15856f7a35bdSTrond Myklebust p = xdr_encode_opaque_fixed(p, readdir->verifier.data, NFS4_VERIFIER_SIZE); 15866f7a35bdSTrond Myklebust *p++ = cpu_to_be32(dircount); 15876f7a35bdSTrond Myklebust *p++ = cpu_to_be32(readdir->count); 15886f7a35bdSTrond Myklebust *p++ = cpu_to_be32(2); 158982f2e547SBryan Schumaker 1590e75bc1c8SBenny Halevy *p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]); 159134558513SBenny Halevy *p = cpu_to_be32(attrs[1] & readdir->bitmask[1]); 1592d017931cSAndy Adamson hdr->nops++; 1593dadf0c27SBenny Halevy hdr->replen += decode_readdir_maxsz; 159444109241SFred Isaman dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n", 159544109241SFred Isaman __func__, 1596eadf4598STrond Myklebust (unsigned long long)readdir->cookie, 1597eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 1598eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1], 1599eadf4598STrond Myklebust attrs[0] & readdir->bitmask[0], 1600eadf4598STrond Myklebust attrs[1] & readdir->bitmask[1]); 16011da177e4SLinus Torvalds } 16021da177e4SLinus Torvalds 1603cf8cdbe5SAndy Adamson static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr) 16041da177e4SLinus Torvalds { 16058687b63aSAl Viro __be32 *p; 16061da177e4SLinus Torvalds 160713c65ce9SBenny Halevy p = reserve_space(xdr, 4); 160834558513SBenny Halevy *p = cpu_to_be32(OP_READLINK); 1609d017931cSAndy Adamson hdr->nops++; 1610dadf0c27SBenny Halevy hdr->replen += decode_readlink_maxsz; 16111da177e4SLinus Torvalds } 16121da177e4SLinus Torvalds 1613cf8cdbe5SAndy Adamson static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 16141da177e4SLinus Torvalds { 16158687b63aSAl Viro __be32 *p; 16161da177e4SLinus Torvalds 161713c65ce9SBenny Halevy p = reserve_space(xdr, 8 + name->len); 1618e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_REMOVE); 1619811652bdSBenny Halevy xdr_encode_opaque(p, name->name, name->len); 1620d017931cSAndy Adamson hdr->nops++; 1621dadf0c27SBenny Halevy hdr->replen += decode_remove_maxsz; 16221da177e4SLinus Torvalds } 16231da177e4SLinus Torvalds 1624cf8cdbe5SAndy Adamson static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr) 16251da177e4SLinus Torvalds { 16268687b63aSAl Viro __be32 *p; 16271da177e4SLinus Torvalds 1628811652bdSBenny Halevy p = reserve_space(xdr, 4); 1629811652bdSBenny Halevy *p = cpu_to_be32(OP_RENAME); 1630811652bdSBenny Halevy encode_string(xdr, oldname->len, oldname->name); 1631811652bdSBenny Halevy encode_string(xdr, newname->len, newname->name); 1632d017931cSAndy Adamson hdr->nops++; 1633dadf0c27SBenny Halevy hdr->replen += decode_rename_maxsz; 16341da177e4SLinus Torvalds } 16351da177e4SLinus Torvalds 1636cf8cdbe5SAndy Adamson static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr) 16371da177e4SLinus Torvalds { 16388687b63aSAl Viro __be32 *p; 16391da177e4SLinus Torvalds 164013c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1641e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_RENEW); 164234558513SBenny Halevy xdr_encode_hyper(p, client_stateid->cl_clientid); 1643d017931cSAndy Adamson hdr->nops++; 1644dadf0c27SBenny Halevy hdr->replen += decode_renew_maxsz; 16451da177e4SLinus Torvalds } 16461da177e4SLinus Torvalds 1647cf8cdbe5SAndy Adamson static void 1648d017931cSAndy Adamson encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 164956ae19f3STrond Myklebust { 16508687b63aSAl Viro __be32 *p; 165156ae19f3STrond Myklebust 165213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 165334558513SBenny Halevy *p = cpu_to_be32(OP_RESTOREFH); 1654d017931cSAndy Adamson hdr->nops++; 1655dadf0c27SBenny Halevy hdr->replen += decode_restorefh_maxsz; 165656ae19f3STrond Myklebust } 165756ae19f3STrond Myklebust 16589f06c719SChuck Lever static void 1659d017931cSAndy Adamson encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr) 166023ec6965SJ. Bruce Fields { 16618687b63aSAl Viro __be32 *p; 166223ec6965SJ. Bruce Fields 166313c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1664e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 166534558513SBenny Halevy xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); 166613c65ce9SBenny Halevy p = reserve_space(xdr, 2*4); 1667e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 166834558513SBenny Halevy *p = cpu_to_be32(FATTR4_WORD0_ACL); 16699f06c719SChuck Lever BUG_ON(arg->acl_len % 4); 167013c65ce9SBenny Halevy p = reserve_space(xdr, 4); 167134558513SBenny Halevy *p = cpu_to_be32(arg->acl_len); 167223ec6965SJ. Bruce Fields xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len); 1673d017931cSAndy Adamson hdr->nops++; 1674dadf0c27SBenny Halevy hdr->replen += decode_setacl_maxsz; 167523ec6965SJ. Bruce Fields } 167623ec6965SJ. Bruce Fields 1677cf8cdbe5SAndy Adamson static void 1678d017931cSAndy Adamson encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr) 16791da177e4SLinus Torvalds { 16808687b63aSAl Viro __be32 *p; 16811da177e4SLinus Torvalds 168213c65ce9SBenny Halevy p = reserve_space(xdr, 4); 168334558513SBenny Halevy *p = cpu_to_be32(OP_SAVEFH); 1684d017931cSAndy Adamson hdr->nops++; 1685dadf0c27SBenny Halevy hdr->replen += decode_savefh_maxsz; 16861da177e4SLinus Torvalds } 16871da177e4SLinus Torvalds 1688cf8cdbe5SAndy Adamson static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr) 16891da177e4SLinus Torvalds { 16908687b63aSAl Viro __be32 *p; 16911da177e4SLinus Torvalds 169213c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 1693e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETATTR); 169434558513SBenny Halevy xdr_encode_opaque_fixed(p, arg->stateid.data, NFS4_STATEID_SIZE); 1695d017931cSAndy Adamson hdr->nops++; 1696dadf0c27SBenny Halevy hdr->replen += decode_setattr_maxsz; 1697cf8cdbe5SAndy Adamson encode_attrs(xdr, arg->iap, server); 16981da177e4SLinus Torvalds } 16991da177e4SLinus Torvalds 1700cf8cdbe5SAndy Adamson static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr) 17011da177e4SLinus Torvalds { 17028687b63aSAl Viro __be32 *p; 17031da177e4SLinus Torvalds 170413c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_VERIFIER_SIZE); 1705e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID); 170634558513SBenny Halevy xdr_encode_opaque_fixed(p, setclientid->sc_verifier->data, NFS4_VERIFIER_SIZE); 17071da177e4SLinus Torvalds 17081da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_name_len, setclientid->sc_name); 170913c65ce9SBenny Halevy p = reserve_space(xdr, 4); 171034558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_prog); 17111da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_netid_len, setclientid->sc_netid); 17121da177e4SLinus Torvalds encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr); 171313c65ce9SBenny Halevy p = reserve_space(xdr, 4); 171434558513SBenny Halevy *p = cpu_to_be32(setclientid->sc_cb_ident); 1715d017931cSAndy Adamson hdr->nops++; 1716dadf0c27SBenny Halevy hdr->replen += decode_setclientid_maxsz; 17171da177e4SLinus Torvalds } 17181da177e4SLinus Torvalds 1719bb8b27e5STrond Myklebust static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs4_setclientid_res *arg, struct compound_hdr *hdr) 17201da177e4SLinus Torvalds { 17218687b63aSAl Viro __be32 *p; 17221da177e4SLinus Torvalds 172313c65ce9SBenny Halevy p = reserve_space(xdr, 12 + NFS4_VERIFIER_SIZE); 1724e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SETCLIENTID_CONFIRM); 1725bb8b27e5STrond Myklebust p = xdr_encode_hyper(p, arg->clientid); 1726bb8b27e5STrond Myklebust xdr_encode_opaque_fixed(p, arg->confirm.data, NFS4_VERIFIER_SIZE); 1727d017931cSAndy Adamson hdr->nops++; 1728dadf0c27SBenny Halevy hdr->replen += decode_setclientid_confirm_maxsz; 17291da177e4SLinus Torvalds } 17301da177e4SLinus Torvalds 1731cf8cdbe5SAndy Adamson static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr) 17321da177e4SLinus Torvalds { 17338687b63aSAl Viro __be32 *p; 17341da177e4SLinus Torvalds 173513c65ce9SBenny Halevy p = reserve_space(xdr, 4); 173634558513SBenny Halevy *p = cpu_to_be32(OP_WRITE); 17371da177e4SLinus Torvalds 173889d1ea65SAndy Adamson encode_stateid(xdr, args->context, args->lock_context, 173989d1ea65SAndy Adamson hdr->minorversion); 17401da177e4SLinus Torvalds 174113c65ce9SBenny Halevy p = reserve_space(xdr, 16); 1742b95be5a9SBenny Halevy p = xdr_encode_hyper(p, args->offset); 1743e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->stable); 174434558513SBenny Halevy *p = cpu_to_be32(args->count); 17451da177e4SLinus Torvalds 17461da177e4SLinus Torvalds xdr_write_pages(xdr, args->pages, args->pgbase, args->count); 1747d017931cSAndy Adamson hdr->nops++; 1748dadf0c27SBenny Halevy hdr->replen += decode_write_maxsz; 17491da177e4SLinus Torvalds } 17501da177e4SLinus Torvalds 1751cf8cdbe5SAndy Adamson static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr) 17521da177e4SLinus Torvalds { 17538687b63aSAl Viro __be32 *p; 17541da177e4SLinus Torvalds 175513c65ce9SBenny Halevy p = reserve_space(xdr, 4+NFS4_STATEID_SIZE); 17561da177e4SLinus Torvalds 1757e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DELEGRETURN); 175834558513SBenny Halevy xdr_encode_opaque_fixed(p, stateid->data, NFS4_STATEID_SIZE); 1759d017931cSAndy Adamson hdr->nops++; 1760dadf0c27SBenny Halevy hdr->replen += decode_delegreturn_maxsz; 17611da177e4SLinus Torvalds } 17629b7b9fccSAndy Adamson 17635a5ea0d4SBryan Schumaker static void encode_secinfo(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr) 17645a5ea0d4SBryan Schumaker { 17655a5ea0d4SBryan Schumaker int len = name->len; 17665a5ea0d4SBryan Schumaker __be32 *p; 17675a5ea0d4SBryan Schumaker 17685a5ea0d4SBryan Schumaker p = reserve_space(xdr, 8 + len); 17695a5ea0d4SBryan Schumaker *p++ = cpu_to_be32(OP_SECINFO); 17705a5ea0d4SBryan Schumaker xdr_encode_opaque(p, name->name, len); 17715a5ea0d4SBryan Schumaker hdr->nops++; 17725a5ea0d4SBryan Schumaker hdr->replen += decode_secinfo_maxsz; 17735a5ea0d4SBryan Schumaker } 17745a5ea0d4SBryan Schumaker 177599fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 17769b7b9fccSAndy Adamson /* NFSv4.1 operations */ 177799fe60d0SBenny Halevy static void encode_exchange_id(struct xdr_stream *xdr, 177899fe60d0SBenny Halevy struct nfs41_exchange_id_args *args, 177999fe60d0SBenny Halevy struct compound_hdr *hdr) 178099fe60d0SBenny Halevy { 178199fe60d0SBenny Halevy __be32 *p; 1782db8ac8baSWeston Andros Adamson char impl_name[NFS4_OPAQUE_LIMIT]; 1783db8ac8baSWeston Andros Adamson int len = 0; 178499fe60d0SBenny Halevy 178513c65ce9SBenny Halevy p = reserve_space(xdr, 4 + sizeof(args->verifier->data)); 1786e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_EXCHANGE_ID); 178734558513SBenny Halevy xdr_encode_opaque_fixed(p, args->verifier->data, sizeof(args->verifier->data)); 178899fe60d0SBenny Halevy 178999fe60d0SBenny Halevy encode_string(xdr, args->id_len, args->id); 179099fe60d0SBenny Halevy 179113c65ce9SBenny Halevy p = reserve_space(xdr, 12); 1792e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); 1793e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* zero length state_protect4_a */ 1794db8ac8baSWeston Andros Adamson 1795db8ac8baSWeston Andros Adamson if (send_implementation_id && 1796db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) > 1 && 1797db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) 1798db8ac8baSWeston Andros Adamson <= NFS4_OPAQUE_LIMIT + 1) 1799db8ac8baSWeston Andros Adamson len = snprintf(impl_name, sizeof(impl_name), "%s %s %s %s", 1800db8ac8baSWeston Andros Adamson utsname()->sysname, utsname()->release, 1801db8ac8baSWeston Andros Adamson utsname()->version, utsname()->machine); 1802db8ac8baSWeston Andros Adamson 1803db8ac8baSWeston Andros Adamson if (len > 0) { 1804db8ac8baSWeston Andros Adamson *p = cpu_to_be32(1); /* implementation id array length=1 */ 1805db8ac8baSWeston Andros Adamson 1806db8ac8baSWeston Andros Adamson encode_string(xdr, 1807db8ac8baSWeston Andros Adamson sizeof(CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN) - 1, 1808db8ac8baSWeston Andros Adamson CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN); 1809db8ac8baSWeston Andros Adamson encode_string(xdr, len, impl_name); 1810db8ac8baSWeston Andros Adamson /* just send zeros for nii_date - the date is in nii_name */ 1811db8ac8baSWeston Andros Adamson p = reserve_space(xdr, 12); 1812db8ac8baSWeston Andros Adamson p = xdr_encode_hyper(p, 0); 1813db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); 1814db8ac8baSWeston Andros Adamson } else 1815db8ac8baSWeston Andros Adamson *p = cpu_to_be32(0); /* implementation id array length=0 */ 1816db8ac8baSWeston Andros Adamson 181799fe60d0SBenny Halevy hdr->nops++; 181899fe60d0SBenny Halevy hdr->replen += decode_exchange_id_maxsz; 181999fe60d0SBenny Halevy } 1820fc931582SAndy Adamson 1821fc931582SAndy Adamson static void encode_create_session(struct xdr_stream *xdr, 1822fc931582SAndy Adamson struct nfs41_create_session_args *args, 1823fc931582SAndy Adamson struct compound_hdr *hdr) 1824fc931582SAndy Adamson { 1825fc931582SAndy Adamson __be32 *p; 1826fc931582SAndy Adamson char machine_name[NFS4_MAX_MACHINE_NAME_LEN]; 1827fc931582SAndy Adamson uint32_t len; 1828fc931582SAndy Adamson struct nfs_client *clp = args->client; 18298e0d46e1SMike Sager u32 max_resp_sz_cached; 18308e0d46e1SMike Sager 18318e0d46e1SMike Sager /* 18328e0d46e1SMike Sager * Assumes OPEN is the biggest non-idempotent compound. 18338e0d46e1SMike Sager * 2 is the verifier. 18348e0d46e1SMike Sager */ 18358e0d46e1SMike Sager max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 18368e0d46e1SMike Sager RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT; 1837fc931582SAndy Adamson 1838fc931582SAndy Adamson len = scnprintf(machine_name, sizeof(machine_name), "%s", 1839fc931582SAndy Adamson clp->cl_ipaddr); 184042edd698SBenny Halevy 184113c65ce9SBenny Halevy p = reserve_space(xdr, 20 + 2*28 + 20 + len + 12); 1842e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_CREATE_SESSION); 1843114f64b5SAndy Adamson p = xdr_encode_hyper(p, clp->cl_clientid); 1844e75bc1c8SBenny Halevy *p++ = cpu_to_be32(clp->cl_seqid); /*Sequence id */ 1845e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->flags); /*flags */ 1846fc931582SAndy Adamson 1847fc931582SAndy Adamson /* Fore Channel */ 1848c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1849e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_rqst_sz); /* max req size */ 1850e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_resp_sz); /* max resp size */ 18518e0d46e1SMike Sager *p++ = cpu_to_be32(max_resp_sz_cached); /* Max resp sz cached */ 1852e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_ops); /* max operations */ 1853e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->fc_attrs.max_reqs); /* max requests */ 1854e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1855fc931582SAndy Adamson 1856fc931582SAndy Adamson /* Back Channel */ 1857c9c30dd5SBenny Halevy *p++ = cpu_to_be32(0); /* header padding size */ 1858e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_rqst_sz); /* max req size */ 1859e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz); /* max resp size */ 1860e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_resp_sz_cached); /* Max resp sz cached */ 1861e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_ops); /* max operations */ 1862e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->bc_attrs.max_reqs); /* max requests */ 1863e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* rdmachannel_attrs */ 1864fc931582SAndy Adamson 1865e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->cb_program); /* cb_program */ 1866e75bc1c8SBenny Halevy *p++ = cpu_to_be32(1); 1867e75bc1c8SBenny Halevy *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ 1868fc931582SAndy Adamson 1869fc931582SAndy Adamson /* authsys_parms rfc1831 */ 1870e75bc1c8SBenny Halevy *p++ = cpu_to_be32((u32)clp->cl_boot_time.tv_nsec); /* stamp */ 1871811652bdSBenny Halevy p = xdr_encode_opaque(p, machine_name, len); 1872e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* UID */ 1873e75bc1c8SBenny Halevy *p++ = cpu_to_be32(0); /* GID */ 187434558513SBenny Halevy *p = cpu_to_be32(0); /* No more gids */ 1875fc931582SAndy Adamson hdr->nops++; 1876fc931582SAndy Adamson hdr->replen += decode_create_session_maxsz; 1877fc931582SAndy Adamson } 18780f3e66c6SAndy Adamson 18790f3e66c6SAndy Adamson static void encode_destroy_session(struct xdr_stream *xdr, 18800f3e66c6SAndy Adamson struct nfs4_session *session, 18810f3e66c6SAndy Adamson struct compound_hdr *hdr) 18820f3e66c6SAndy Adamson { 18830f3e66c6SAndy Adamson __be32 *p; 188413c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN); 1885e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_DESTROY_SESSION); 188634558513SBenny Halevy xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 18870f3e66c6SAndy Adamson hdr->nops++; 18880f3e66c6SAndy Adamson hdr->replen += decode_destroy_session_maxsz; 18890f3e66c6SAndy Adamson } 189018019753SRicardo Labiaga 189118019753SRicardo Labiaga static void encode_reclaim_complete(struct xdr_stream *xdr, 189218019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args, 189318019753SRicardo Labiaga struct compound_hdr *hdr) 189418019753SRicardo Labiaga { 189518019753SRicardo Labiaga __be32 *p; 189618019753SRicardo Labiaga 189718019753SRicardo Labiaga p = reserve_space(xdr, 8); 189818019753SRicardo Labiaga *p++ = cpu_to_be32(OP_RECLAIM_COMPLETE); 189918019753SRicardo Labiaga *p++ = cpu_to_be32(args->one_fs); 190018019753SRicardo Labiaga hdr->nops++; 190118019753SRicardo Labiaga hdr->replen += decode_reclaim_complete_maxsz; 190218019753SRicardo Labiaga } 190399fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 190499fe60d0SBenny Halevy 19059b7b9fccSAndy Adamson static void encode_sequence(struct xdr_stream *xdr, 19069b7b9fccSAndy Adamson const struct nfs4_sequence_args *args, 19079b7b9fccSAndy Adamson struct compound_hdr *hdr) 19089b7b9fccSAndy Adamson { 19099b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 19109b7b9fccSAndy Adamson struct nfs4_session *session = args->sa_session; 1911fc01cea9SAndy Adamson struct nfs4_slot_table *tp; 1912fc01cea9SAndy Adamson struct nfs4_slot *slot; 1913fc01cea9SAndy Adamson __be32 *p; 19149b7b9fccSAndy Adamson 19159b7b9fccSAndy Adamson if (!session) 19169b7b9fccSAndy Adamson return; 19179b7b9fccSAndy Adamson 1918fc01cea9SAndy Adamson tp = &session->fc_slot_table; 1919fc01cea9SAndy Adamson 1920fc01cea9SAndy Adamson WARN_ON(args->sa_slotid == NFS4_MAX_SLOT_TABLE); 1921fc01cea9SAndy Adamson slot = tp->slots + args->sa_slotid; 1922fc01cea9SAndy Adamson 192313c65ce9SBenny Halevy p = reserve_space(xdr, 4 + NFS4_MAX_SESSIONID_LEN + 16); 1924e75bc1c8SBenny Halevy *p++ = cpu_to_be32(OP_SEQUENCE); 1925fc01cea9SAndy Adamson 1926fc01cea9SAndy Adamson /* 1927fc01cea9SAndy Adamson * Sessionid + seqid + slotid + max slotid + cache_this 1928fc01cea9SAndy Adamson */ 1929fc01cea9SAndy Adamson dprintk("%s: sessionid=%u:%u:%u:%u seqid=%d slotid=%d " 1930fc01cea9SAndy Adamson "max_slotid=%d cache_this=%d\n", 1931fc01cea9SAndy Adamson __func__, 1932fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[0], 1933fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[1], 1934fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[2], 1935fc01cea9SAndy Adamson ((u32 *)session->sess_id.data)[3], 1936fc01cea9SAndy Adamson slot->seq_nr, args->sa_slotid, 1937fc01cea9SAndy Adamson tp->highest_used_slotid, args->sa_cache_this); 193893f0cf25SBenny Halevy p = xdr_encode_opaque_fixed(p, session->sess_id.data, NFS4_MAX_SESSIONID_LEN); 1939e75bc1c8SBenny Halevy *p++ = cpu_to_be32(slot->seq_nr); 1940e75bc1c8SBenny Halevy *p++ = cpu_to_be32(args->sa_slotid); 1941e75bc1c8SBenny Halevy *p++ = cpu_to_be32(tp->highest_used_slotid); 194234558513SBenny Halevy *p = cpu_to_be32(args->sa_cache_this); 19439b7b9fccSAndy Adamson hdr->nops++; 19449b7b9fccSAndy Adamson hdr->replen += decode_sequence_maxsz; 19459b7b9fccSAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 19469b7b9fccSAndy Adamson } 19479b7b9fccSAndy Adamson 1948b1f69b75SAndy Adamson #ifdef CONFIG_NFS_V4_1 1949b1f69b75SAndy Adamson static void 19507f11d8d3SAndy Adamson encode_getdevicelist(struct xdr_stream *xdr, 19517f11d8d3SAndy Adamson const struct nfs4_getdevicelist_args *args, 19527f11d8d3SAndy Adamson struct compound_hdr *hdr) 19537f11d8d3SAndy Adamson { 19547f11d8d3SAndy Adamson __be32 *p; 19557f11d8d3SAndy Adamson nfs4_verifier dummy = { 19567f11d8d3SAndy Adamson .data = "dummmmmy", 19577f11d8d3SAndy Adamson }; 19587f11d8d3SAndy Adamson 19597f11d8d3SAndy Adamson p = reserve_space(xdr, 20); 19607f11d8d3SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICELIST); 19617f11d8d3SAndy Adamson *p++ = cpu_to_be32(args->layoutclass); 19627f11d8d3SAndy Adamson *p++ = cpu_to_be32(NFS4_PNFS_GETDEVLIST_MAXNUM); 19637f11d8d3SAndy Adamson xdr_encode_hyper(p, 0ULL); /* cookie */ 19647f11d8d3SAndy Adamson encode_nfs4_verifier(xdr, &dummy); 19657f11d8d3SAndy Adamson hdr->nops++; 19667f11d8d3SAndy Adamson hdr->replen += decode_getdevicelist_maxsz; 19677f11d8d3SAndy Adamson } 19687f11d8d3SAndy Adamson 19697f11d8d3SAndy Adamson static void 1970b1f69b75SAndy Adamson encode_getdeviceinfo(struct xdr_stream *xdr, 1971b1f69b75SAndy Adamson const struct nfs4_getdeviceinfo_args *args, 1972b1f69b75SAndy Adamson struct compound_hdr *hdr) 1973b1f69b75SAndy Adamson { 1974b1f69b75SAndy Adamson __be32 *p; 1975b1f69b75SAndy Adamson 1976b1f69b75SAndy Adamson p = reserve_space(xdr, 16 + NFS4_DEVICEID4_SIZE); 1977b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_GETDEVICEINFO); 1978b1f69b75SAndy Adamson p = xdr_encode_opaque_fixed(p, args->pdev->dev_id.data, 1979b1f69b75SAndy Adamson NFS4_DEVICEID4_SIZE); 1980b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->layout_type); 1981b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->pdev->pglen); /* gdia_maxcount */ 1982b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* bitmap length 0 */ 1983b1f69b75SAndy Adamson hdr->nops++; 1984b1f69b75SAndy Adamson hdr->replen += decode_getdeviceinfo_maxsz; 1985b1f69b75SAndy Adamson } 1986b1f69b75SAndy Adamson 1987b1f69b75SAndy Adamson static void 1988b1f69b75SAndy Adamson encode_layoutget(struct xdr_stream *xdr, 1989b1f69b75SAndy Adamson const struct nfs4_layoutget_args *args, 1990b1f69b75SAndy Adamson struct compound_hdr *hdr) 1991b1f69b75SAndy Adamson { 1992b1f69b75SAndy Adamson __be32 *p; 1993b1f69b75SAndy Adamson 1994b1f69b75SAndy Adamson p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 1995b1f69b75SAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTGET); 1996b1f69b75SAndy Adamson *p++ = cpu_to_be32(0); /* Signal layout available */ 1997b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->type); 1998b1f69b75SAndy Adamson *p++ = cpu_to_be32(args->range.iomode); 1999b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.offset); 2000b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->range.length); 2001b1f69b75SAndy Adamson p = xdr_encode_hyper(p, args->minlength); 2002cf7d63f1SFred Isaman p = xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 2003b1f69b75SAndy Adamson *p = cpu_to_be32(args->maxcount); 2004b1f69b75SAndy Adamson 2005b1f69b75SAndy Adamson dprintk("%s: 1st type:0x%x iomode:%d off:%lu len:%lu mc:%d\n", 2006b1f69b75SAndy Adamson __func__, 2007b1f69b75SAndy Adamson args->type, 2008b1f69b75SAndy Adamson args->range.iomode, 2009b1f69b75SAndy Adamson (unsigned long)args->range.offset, 2010b1f69b75SAndy Adamson (unsigned long)args->range.length, 2011b1f69b75SAndy Adamson args->maxcount); 2012b1f69b75SAndy Adamson hdr->nops++; 2013b1f69b75SAndy Adamson hdr->replen += decode_layoutget_maxsz; 2014b1f69b75SAndy Adamson } 2015863a3c6cSAndy Adamson 2016863a3c6cSAndy Adamson static int 2017863a3c6cSAndy Adamson encode_layoutcommit(struct xdr_stream *xdr, 2018ac7db726SBenny Halevy struct inode *inode, 2019863a3c6cSAndy Adamson const struct nfs4_layoutcommit_args *args, 2020863a3c6cSAndy Adamson struct compound_hdr *hdr) 2021863a3c6cSAndy Adamson { 2022863a3c6cSAndy Adamson __be32 *p; 2023863a3c6cSAndy Adamson 2024863a3c6cSAndy Adamson dprintk("%s: lbw: %llu type: %d\n", __func__, args->lastbytewritten, 2025863a3c6cSAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->id); 2026863a3c6cSAndy Adamson 2027ac7db726SBenny Halevy p = reserve_space(xdr, 44 + NFS4_STATEID_SIZE); 2028863a3c6cSAndy Adamson *p++ = cpu_to_be32(OP_LAYOUTCOMMIT); 2029863a3c6cSAndy Adamson /* Only whole file layouts */ 2030863a3c6cSAndy Adamson p = xdr_encode_hyper(p, 0); /* offset */ 20313557c6c3SPeng Tao p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */ 2032863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* reclaim */ 2033863a3c6cSAndy Adamson p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE); 2034863a3c6cSAndy Adamson *p++ = cpu_to_be32(1); /* newoffset = TRUE */ 2035863a3c6cSAndy Adamson p = xdr_encode_hyper(p, args->lastbytewritten); 2036863a3c6cSAndy Adamson *p++ = cpu_to_be32(0); /* Never send time_modify_changed */ 2037863a3c6cSAndy Adamson *p++ = cpu_to_be32(NFS_SERVER(args->inode)->pnfs_curr_ld->id);/* type */ 2038ac7db726SBenny Halevy 2039ac7db726SBenny Halevy if (NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit) 2040ac7db726SBenny Halevy NFS_SERVER(inode)->pnfs_curr_ld->encode_layoutcommit( 2041ac7db726SBenny Halevy NFS_I(inode)->layout, xdr, args); 2042ac7db726SBenny Halevy else { 2043ac7db726SBenny Halevy p = reserve_space(xdr, 4); 2044ac7db726SBenny Halevy *p = cpu_to_be32(0); /* no layout-type payload */ 2045ac7db726SBenny Halevy } 2046863a3c6cSAndy Adamson 2047863a3c6cSAndy Adamson hdr->nops++; 2048863a3c6cSAndy Adamson hdr->replen += decode_layoutcommit_maxsz; 2049863a3c6cSAndy Adamson return 0; 2050863a3c6cSAndy Adamson } 2051cbe82603SBenny Halevy 2052cbe82603SBenny Halevy static void 2053cbe82603SBenny Halevy encode_layoutreturn(struct xdr_stream *xdr, 2054cbe82603SBenny Halevy const struct nfs4_layoutreturn_args *args, 2055cbe82603SBenny Halevy struct compound_hdr *hdr) 2056cbe82603SBenny Halevy { 2057cbe82603SBenny Halevy __be32 *p; 2058cbe82603SBenny Halevy 2059cbe82603SBenny Halevy p = reserve_space(xdr, 20); 2060cbe82603SBenny Halevy *p++ = cpu_to_be32(OP_LAYOUTRETURN); 2061cbe82603SBenny Halevy *p++ = cpu_to_be32(0); /* reclaim. always 0 for now */ 2062cbe82603SBenny Halevy *p++ = cpu_to_be32(args->layout_type); 2063cbe82603SBenny Halevy *p++ = cpu_to_be32(IOMODE_ANY); 2064cbe82603SBenny Halevy *p = cpu_to_be32(RETURN_FILE); 2065cbe82603SBenny Halevy p = reserve_space(xdr, 16 + NFS4_STATEID_SIZE); 2066cbe82603SBenny Halevy p = xdr_encode_hyper(p, 0); 2067cbe82603SBenny Halevy p = xdr_encode_hyper(p, NFS4_MAX_UINT64); 2068cbe82603SBenny Halevy spin_lock(&args->inode->i_lock); 2069cbe82603SBenny Halevy xdr_encode_opaque_fixed(p, &args->stateid.data, NFS4_STATEID_SIZE); 2070cbe82603SBenny Halevy spin_unlock(&args->inode->i_lock); 207104a55549SAndy Adamson if (NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn) { 207204a55549SAndy Adamson NFS_SERVER(args->inode)->pnfs_curr_ld->encode_layoutreturn( 207304a55549SAndy Adamson NFS_I(args->inode)->layout, xdr, args); 207404a55549SAndy Adamson } else { 2075cbe82603SBenny Halevy p = reserve_space(xdr, 4); 2076cbe82603SBenny Halevy *p = cpu_to_be32(0); 207704a55549SAndy Adamson } 2078cbe82603SBenny Halevy hdr->nops++; 2079cbe82603SBenny Halevy hdr->replen += decode_layoutreturn_maxsz; 2080cbe82603SBenny Halevy } 2081fca78d6dSBryan Schumaker 2082fca78d6dSBryan Schumaker static int 2083fca78d6dSBryan Schumaker encode_secinfo_no_name(struct xdr_stream *xdr, 2084fca78d6dSBryan Schumaker const struct nfs41_secinfo_no_name_args *args, 2085fca78d6dSBryan Schumaker struct compound_hdr *hdr) 2086fca78d6dSBryan Schumaker { 2087fca78d6dSBryan Schumaker __be32 *p; 2088fca78d6dSBryan Schumaker p = reserve_space(xdr, 8); 2089fca78d6dSBryan Schumaker *p++ = cpu_to_be32(OP_SECINFO_NO_NAME); 2090fca78d6dSBryan Schumaker *p++ = cpu_to_be32(args->style); 2091fca78d6dSBryan Schumaker hdr->nops++; 2092fca78d6dSBryan Schumaker hdr->replen += decode_secinfo_no_name_maxsz; 2093fca78d6dSBryan Schumaker return 0; 2094fca78d6dSBryan Schumaker } 20957d974794SBryan Schumaker 20967d974794SBryan Schumaker static void encode_test_stateid(struct xdr_stream *xdr, 20977d974794SBryan Schumaker struct nfs41_test_stateid_args *args, 20987d974794SBryan Schumaker struct compound_hdr *hdr) 20997d974794SBryan Schumaker { 21007d974794SBryan Schumaker __be32 *p; 21017d974794SBryan Schumaker 21027d974794SBryan Schumaker p = reserve_space(xdr, 8 + NFS4_STATEID_SIZE); 21037d974794SBryan Schumaker *p++ = cpu_to_be32(OP_TEST_STATEID); 21047d974794SBryan Schumaker *p++ = cpu_to_be32(1); 21057d974794SBryan Schumaker xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 21067d974794SBryan Schumaker hdr->nops++; 21077d974794SBryan Schumaker hdr->replen += decode_test_stateid_maxsz; 21087d974794SBryan Schumaker } 21099aeda35fSBryan Schumaker 21109aeda35fSBryan Schumaker static void encode_free_stateid(struct xdr_stream *xdr, 21119aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args, 21129aeda35fSBryan Schumaker struct compound_hdr *hdr) 21139aeda35fSBryan Schumaker { 21149aeda35fSBryan Schumaker __be32 *p; 21159aeda35fSBryan Schumaker p = reserve_space(xdr, 4 + NFS4_STATEID_SIZE); 21169aeda35fSBryan Schumaker *p++ = cpu_to_be32(OP_FREE_STATEID); 21179aeda35fSBryan Schumaker xdr_encode_opaque_fixed(p, args->stateid->data, NFS4_STATEID_SIZE); 21189aeda35fSBryan Schumaker hdr->nops++; 21199aeda35fSBryan Schumaker hdr->replen += decode_free_stateid_maxsz; 21209aeda35fSBryan Schumaker } 2121b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 2122b1f69b75SAndy Adamson 21231da177e4SLinus Torvalds /* 21241da177e4SLinus Torvalds * END OF "GENERIC" ENCODE ROUTINES. 21251da177e4SLinus Torvalds */ 21261da177e4SLinus Torvalds 212766cc0429SBenny Halevy static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args) 212866cc0429SBenny Halevy { 212966cc0429SBenny Halevy #if defined(CONFIG_NFS_V4_1) 213066cc0429SBenny Halevy if (args->sa_session) 2131a4432345STrond Myklebust return args->sa_session->clp->cl_mvops->minor_version; 213266cc0429SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 213366cc0429SBenny Halevy return 0; 213466cc0429SBenny Halevy } 213566cc0429SBenny Halevy 21361da177e4SLinus Torvalds /* 21371da177e4SLinus Torvalds * Encode an ACCESS request 21381da177e4SLinus Torvalds */ 21399f06c719SChuck Lever static void nfs4_xdr_enc_access(struct rpc_rqst *req, struct xdr_stream *xdr, 21409f06c719SChuck Lever const struct nfs4_accessargs *args) 21411da177e4SLinus Torvalds { 21421da177e4SLinus Torvalds struct compound_hdr hdr = { 214366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21441da177e4SLinus Torvalds }; 21451da177e4SLinus Torvalds 21469f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21479f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21489f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 21499f06c719SChuck Lever encode_access(xdr, args->access, &hdr); 21509f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2151d017931cSAndy Adamson encode_nops(&hdr); 21521da177e4SLinus Torvalds } 21531da177e4SLinus Torvalds 21541da177e4SLinus Torvalds /* 21551da177e4SLinus Torvalds * Encode LOOKUP request 21561da177e4SLinus Torvalds */ 21579f06c719SChuck Lever static void nfs4_xdr_enc_lookup(struct rpc_rqst *req, struct xdr_stream *xdr, 21589f06c719SChuck Lever const struct nfs4_lookup_arg *args) 21591da177e4SLinus Torvalds { 21601da177e4SLinus Torvalds struct compound_hdr hdr = { 216166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21621da177e4SLinus Torvalds }; 21631da177e4SLinus Torvalds 21649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21659f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21669f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 21679f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 21689f06c719SChuck Lever encode_getfh(xdr, &hdr); 21699f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2170d017931cSAndy Adamson encode_nops(&hdr); 21711da177e4SLinus Torvalds } 21721da177e4SLinus Torvalds 21731da177e4SLinus Torvalds /* 21741da177e4SLinus Torvalds * Encode LOOKUP_ROOT request 21751da177e4SLinus Torvalds */ 21769f06c719SChuck Lever static void nfs4_xdr_enc_lookup_root(struct rpc_rqst *req, 21779f06c719SChuck Lever struct xdr_stream *xdr, 21789f06c719SChuck Lever const struct nfs4_lookup_root_arg *args) 21791da177e4SLinus Torvalds { 21801da177e4SLinus Torvalds struct compound_hdr hdr = { 218166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 21821da177e4SLinus Torvalds }; 21831da177e4SLinus Torvalds 21849f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 21859f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 21869f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 21879f06c719SChuck Lever encode_getfh(xdr, &hdr); 21889f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2189d017931cSAndy Adamson encode_nops(&hdr); 21901da177e4SLinus Torvalds } 21911da177e4SLinus Torvalds 21921da177e4SLinus Torvalds /* 21931da177e4SLinus Torvalds * Encode REMOVE request 21941da177e4SLinus Torvalds */ 21959f06c719SChuck Lever static void nfs4_xdr_enc_remove(struct rpc_rqst *req, struct xdr_stream *xdr, 21969f06c719SChuck Lever const struct nfs_removeargs *args) 21971da177e4SLinus Torvalds { 21981da177e4SLinus Torvalds struct compound_hdr hdr = { 219966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22001da177e4SLinus Torvalds }; 22011da177e4SLinus Torvalds 22029f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22039f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22049f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22059f06c719SChuck Lever encode_remove(xdr, &args->name, &hdr); 22069f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2207d017931cSAndy Adamson encode_nops(&hdr); 22081da177e4SLinus Torvalds } 22091da177e4SLinus Torvalds 22101da177e4SLinus Torvalds /* 22111da177e4SLinus Torvalds * Encode RENAME request 22121da177e4SLinus Torvalds */ 22139f06c719SChuck Lever static void nfs4_xdr_enc_rename(struct rpc_rqst *req, struct xdr_stream *xdr, 22149f06c719SChuck Lever const struct nfs_renameargs *args) 22151da177e4SLinus Torvalds { 22161da177e4SLinus Torvalds struct compound_hdr hdr = { 221766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22181da177e4SLinus Torvalds }; 22191da177e4SLinus Torvalds 22209f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22219f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22229f06c719SChuck Lever encode_putfh(xdr, args->old_dir, &hdr); 22239f06c719SChuck Lever encode_savefh(xdr, &hdr); 22249f06c719SChuck Lever encode_putfh(xdr, args->new_dir, &hdr); 22259f06c719SChuck Lever encode_rename(xdr, args->old_name, args->new_name, &hdr); 22269f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22279f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22289f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2229d017931cSAndy Adamson encode_nops(&hdr); 22301da177e4SLinus Torvalds } 22311da177e4SLinus Torvalds 22321da177e4SLinus Torvalds /* 22331da177e4SLinus Torvalds * Encode LINK request 22341da177e4SLinus Torvalds */ 22359f06c719SChuck Lever static void nfs4_xdr_enc_link(struct rpc_rqst *req, struct xdr_stream *xdr, 22369f06c719SChuck Lever const struct nfs4_link_arg *args) 22371da177e4SLinus Torvalds { 22381da177e4SLinus Torvalds struct compound_hdr hdr = { 223966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22401da177e4SLinus Torvalds }; 22411da177e4SLinus Torvalds 22429f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22439f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22449f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22459f06c719SChuck Lever encode_savefh(xdr, &hdr); 22469f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22479f06c719SChuck Lever encode_link(xdr, args->name, &hdr); 22489f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22499f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22509f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2251d017931cSAndy Adamson encode_nops(&hdr); 22521da177e4SLinus Torvalds } 22531da177e4SLinus Torvalds 22541da177e4SLinus Torvalds /* 22551da177e4SLinus Torvalds * Encode CREATE request 22561da177e4SLinus Torvalds */ 22579f06c719SChuck Lever static void nfs4_xdr_enc_create(struct rpc_rqst *req, struct xdr_stream *xdr, 22589f06c719SChuck Lever const struct nfs4_create_arg *args) 22591da177e4SLinus Torvalds { 22601da177e4SLinus Torvalds struct compound_hdr hdr = { 226166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22621da177e4SLinus Torvalds }; 22631da177e4SLinus Torvalds 22649f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22659f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22669f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 22679f06c719SChuck Lever encode_savefh(xdr, &hdr); 22689f06c719SChuck Lever encode_create(xdr, args, &hdr); 22699f06c719SChuck Lever encode_getfh(xdr, &hdr); 22709f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 22719f06c719SChuck Lever encode_restorefh(xdr, &hdr); 22729f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2273d017931cSAndy Adamson encode_nops(&hdr); 22741da177e4SLinus Torvalds } 22751da177e4SLinus Torvalds 22761da177e4SLinus Torvalds /* 22771da177e4SLinus Torvalds * Encode SYMLINK request 22781da177e4SLinus Torvalds */ 22799f06c719SChuck Lever static void nfs4_xdr_enc_symlink(struct rpc_rqst *req, struct xdr_stream *xdr, 22809f06c719SChuck Lever const struct nfs4_create_arg *args) 22811da177e4SLinus Torvalds { 22829f06c719SChuck Lever nfs4_xdr_enc_create(req, xdr, args); 22831da177e4SLinus Torvalds } 22841da177e4SLinus Torvalds 22851da177e4SLinus Torvalds /* 22861da177e4SLinus Torvalds * Encode GETATTR request 22871da177e4SLinus Torvalds */ 22889f06c719SChuck Lever static void nfs4_xdr_enc_getattr(struct rpc_rqst *req, struct xdr_stream *xdr, 22899f06c719SChuck Lever const struct nfs4_getattr_arg *args) 22901da177e4SLinus Torvalds { 22911da177e4SLinus Torvalds struct compound_hdr hdr = { 229266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 22931da177e4SLinus Torvalds }; 22941da177e4SLinus Torvalds 22959f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 22969f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 22979f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 22989f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2299d017931cSAndy Adamson encode_nops(&hdr); 23001da177e4SLinus Torvalds } 23011da177e4SLinus Torvalds 23021da177e4SLinus Torvalds /* 23031da177e4SLinus Torvalds * Encode a CLOSE request 23041da177e4SLinus Torvalds */ 23059f06c719SChuck Lever static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr, 23069f06c719SChuck Lever struct nfs_closeargs *args) 23071da177e4SLinus Torvalds { 23081da177e4SLinus Torvalds struct compound_hdr hdr = { 230966cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23101da177e4SLinus Torvalds }; 23111da177e4SLinus Torvalds 23129f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23139f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23149f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23159f06c719SChuck Lever encode_close(xdr, args, &hdr); 23169f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2317d017931cSAndy Adamson encode_nops(&hdr); 23181da177e4SLinus Torvalds } 23191da177e4SLinus Torvalds 23201da177e4SLinus Torvalds /* 23211da177e4SLinus Torvalds * Encode an OPEN request 23221da177e4SLinus Torvalds */ 23239f06c719SChuck Lever static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, 23249f06c719SChuck Lever struct nfs_openargs *args) 23251da177e4SLinus Torvalds { 23261da177e4SLinus Torvalds struct compound_hdr hdr = { 232766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23281da177e4SLinus Torvalds }; 23291da177e4SLinus Torvalds 23309f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23319f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23329f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23339f06c719SChuck Lever encode_savefh(xdr, &hdr); 23349f06c719SChuck Lever encode_open(xdr, args, &hdr); 23359f06c719SChuck Lever encode_getfh(xdr, &hdr); 23369f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 23379f06c719SChuck Lever encode_restorefh(xdr, &hdr); 23386926afd1STrond Myklebust encode_getfattr(xdr, args->dir_bitmask, &hdr); 2339d017931cSAndy Adamson encode_nops(&hdr); 23401da177e4SLinus Torvalds } 23411da177e4SLinus Torvalds 23421da177e4SLinus Torvalds /* 23431da177e4SLinus Torvalds * Encode an OPEN_CONFIRM request 23441da177e4SLinus Torvalds */ 23459f06c719SChuck Lever static void nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, 23469f06c719SChuck Lever struct xdr_stream *xdr, 23479f06c719SChuck Lever struct nfs_open_confirmargs *args) 23481da177e4SLinus Torvalds { 23491da177e4SLinus Torvalds struct compound_hdr hdr = { 2350d017931cSAndy Adamson .nops = 0, 23511da177e4SLinus Torvalds }; 23521da177e4SLinus Torvalds 23539f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23549f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23559f06c719SChuck Lever encode_open_confirm(xdr, args, &hdr); 2356d017931cSAndy Adamson encode_nops(&hdr); 23571da177e4SLinus Torvalds } 23581da177e4SLinus Torvalds 23591da177e4SLinus Torvalds /* 23601da177e4SLinus Torvalds * Encode an OPEN request with no attributes. 23611da177e4SLinus Torvalds */ 23629f06c719SChuck Lever static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, 23639f06c719SChuck Lever struct xdr_stream *xdr, 23649f06c719SChuck Lever struct nfs_openargs *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_open(xdr, args, &hdr); 23749f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2375d017931cSAndy Adamson encode_nops(&hdr); 23761da177e4SLinus Torvalds } 23771da177e4SLinus Torvalds 23781da177e4SLinus Torvalds /* 23791da177e4SLinus Torvalds * Encode an OPEN_DOWNGRADE request 23801da177e4SLinus Torvalds */ 23819f06c719SChuck Lever static void nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, 23829f06c719SChuck Lever struct xdr_stream *xdr, 23839f06c719SChuck Lever struct nfs_closeargs *args) 23841da177e4SLinus Torvalds { 23851da177e4SLinus Torvalds struct compound_hdr hdr = { 238666cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 23871da177e4SLinus Torvalds }; 23881da177e4SLinus Torvalds 23899f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 23909f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 23919f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 23929f06c719SChuck Lever encode_open_downgrade(xdr, args, &hdr); 23939f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2394d017931cSAndy Adamson encode_nops(&hdr); 23951da177e4SLinus Torvalds } 23961da177e4SLinus Torvalds 23971da177e4SLinus Torvalds /* 23981da177e4SLinus Torvalds * Encode a LOCK request 23991da177e4SLinus Torvalds */ 24009f06c719SChuck Lever static void nfs4_xdr_enc_lock(struct rpc_rqst *req, struct xdr_stream *xdr, 24019f06c719SChuck Lever struct nfs_lock_args *args) 24021da177e4SLinus Torvalds { 24031da177e4SLinus Torvalds struct compound_hdr hdr = { 240466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24051da177e4SLinus Torvalds }; 24061da177e4SLinus Torvalds 24079f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24089f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24099f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24109f06c719SChuck Lever encode_lock(xdr, args, &hdr); 2411d017931cSAndy Adamson encode_nops(&hdr); 24121da177e4SLinus Torvalds } 24131da177e4SLinus Torvalds 24141da177e4SLinus Torvalds /* 24151da177e4SLinus Torvalds * Encode a LOCKT request 24161da177e4SLinus Torvalds */ 24179f06c719SChuck Lever static void nfs4_xdr_enc_lockt(struct rpc_rqst *req, struct xdr_stream *xdr, 24189f06c719SChuck Lever struct nfs_lockt_args *args) 24191da177e4SLinus Torvalds { 24201da177e4SLinus Torvalds struct compound_hdr hdr = { 242166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24221da177e4SLinus Torvalds }; 24231da177e4SLinus Torvalds 24249f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24259f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24269f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24279f06c719SChuck Lever encode_lockt(xdr, args, &hdr); 2428d017931cSAndy Adamson encode_nops(&hdr); 24291da177e4SLinus Torvalds } 24301da177e4SLinus Torvalds 24311da177e4SLinus Torvalds /* 24321da177e4SLinus Torvalds * Encode a LOCKU request 24331da177e4SLinus Torvalds */ 24349f06c719SChuck Lever static void nfs4_xdr_enc_locku(struct rpc_rqst *req, struct xdr_stream *xdr, 24359f06c719SChuck Lever struct nfs_locku_args *args) 24361da177e4SLinus Torvalds { 24371da177e4SLinus Torvalds struct compound_hdr hdr = { 243866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24391da177e4SLinus Torvalds }; 24401da177e4SLinus Torvalds 24419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24439f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24449f06c719SChuck Lever encode_locku(xdr, args, &hdr); 2445d017931cSAndy Adamson encode_nops(&hdr); 24461da177e4SLinus Torvalds } 24471da177e4SLinus Torvalds 24489f06c719SChuck Lever static void nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, 24499f06c719SChuck Lever struct xdr_stream *xdr, 24509f06c719SChuck Lever struct nfs_release_lockowner_args *args) 2451d3c7b7ccSTrond Myklebust { 2452d3c7b7ccSTrond Myklebust struct compound_hdr hdr = { 2453d3c7b7ccSTrond Myklebust .minorversion = 0, 2454d3c7b7ccSTrond Myklebust }; 2455d3c7b7ccSTrond Myklebust 24569f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24579f06c719SChuck Lever encode_release_lockowner(xdr, &args->lock_owner, &hdr); 2458d3c7b7ccSTrond Myklebust encode_nops(&hdr); 2459d3c7b7ccSTrond Myklebust } 2460d3c7b7ccSTrond Myklebust 24611da177e4SLinus Torvalds /* 24621da177e4SLinus Torvalds * Encode a READLINK request 24631da177e4SLinus Torvalds */ 24649f06c719SChuck Lever static void nfs4_xdr_enc_readlink(struct rpc_rqst *req, struct xdr_stream *xdr, 24659f06c719SChuck Lever const struct nfs4_readlink *args) 24661da177e4SLinus Torvalds { 24671da177e4SLinus Torvalds struct compound_hdr hdr = { 246866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24691da177e4SLinus Torvalds }; 24701da177e4SLinus Torvalds 24719f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24729f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24739f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24749f06c719SChuck Lever encode_readlink(xdr, args, req, &hdr); 2475e3a535e1STrond Myklebust 247628f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2477e3a535e1STrond Myklebust args->pgbase, args->pglen); 2478d017931cSAndy Adamson encode_nops(&hdr); 24791da177e4SLinus Torvalds } 24801da177e4SLinus Torvalds 24811da177e4SLinus Torvalds /* 24821da177e4SLinus Torvalds * Encode a READDIR request 24831da177e4SLinus Torvalds */ 24849f06c719SChuck Lever static void nfs4_xdr_enc_readdir(struct rpc_rqst *req, struct xdr_stream *xdr, 24859f06c719SChuck Lever const struct nfs4_readdir_arg *args) 24861da177e4SLinus Torvalds { 24871da177e4SLinus Torvalds struct compound_hdr hdr = { 248866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 24891da177e4SLinus Torvalds }; 24901da177e4SLinus Torvalds 24919f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 24929f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 24939f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 24949f06c719SChuck Lever encode_readdir(xdr, args, req, &hdr); 2495d6ac02dfSTrond Myklebust 249628f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages, 2497d6ac02dfSTrond Myklebust args->pgbase, args->count); 2498d6ac02dfSTrond Myklebust dprintk("%s: inlined page args = (%u, %p, %u, %u)\n", 249928f56694SBenny Halevy __func__, hdr.replen << 2, args->pages, 2500d6ac02dfSTrond Myklebust args->pgbase, args->count); 2501d017931cSAndy Adamson encode_nops(&hdr); 25021da177e4SLinus Torvalds } 25031da177e4SLinus Torvalds 25041da177e4SLinus Torvalds /* 25051da177e4SLinus Torvalds * Encode a READ request 25061da177e4SLinus Torvalds */ 25079f06c719SChuck Lever static void nfs4_xdr_enc_read(struct rpc_rqst *req, struct xdr_stream *xdr, 25089f06c719SChuck Lever struct nfs_readargs *args) 25091da177e4SLinus Torvalds { 25101da177e4SLinus Torvalds struct compound_hdr hdr = { 251166cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25121da177e4SLinus Torvalds }; 25131da177e4SLinus Torvalds 25149f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25159f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25169f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25179f06c719SChuck Lever encode_read(xdr, args, &hdr); 25181da177e4SLinus Torvalds 251928f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 25201da177e4SLinus Torvalds args->pages, args->pgbase, args->count); 25214f22ccc3S\"Talpey, Thomas\ req->rq_rcv_buf.flags |= XDRBUF_READ; 2522d017931cSAndy Adamson encode_nops(&hdr); 25231da177e4SLinus Torvalds } 25241da177e4SLinus Torvalds 25251da177e4SLinus Torvalds /* 25261da177e4SLinus Torvalds * Encode an SETATTR request 25271da177e4SLinus Torvalds */ 25289f06c719SChuck Lever static void nfs4_xdr_enc_setattr(struct rpc_rqst *req, struct xdr_stream *xdr, 25299f06c719SChuck Lever struct nfs_setattrargs *args) 25301da177e4SLinus Torvalds { 25311da177e4SLinus Torvalds struct compound_hdr hdr = { 253266cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25331da177e4SLinus Torvalds }; 25341da177e4SLinus Torvalds 25359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25369f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25379f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25389f06c719SChuck Lever encode_setattr(xdr, args, args->server, &hdr); 25399f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2540d017931cSAndy Adamson encode_nops(&hdr); 25411da177e4SLinus Torvalds } 25421da177e4SLinus Torvalds 25431da177e4SLinus Torvalds /* 2544029d105eSJ. Bruce Fields * Encode a GETACL request 2545029d105eSJ. Bruce Fields */ 25469f06c719SChuck Lever static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr, 2547029d105eSJ. Bruce Fields struct nfs_getaclargs *args) 2548029d105eSJ. Bruce Fields { 2549029d105eSJ. Bruce Fields struct compound_hdr hdr = { 255066cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2551029d105eSJ. Bruce Fields }; 255228f56694SBenny Halevy uint32_t replen; 2553029d105eSJ. Bruce Fields 25549f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25559f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25569f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 2557bf118a34SAndy Adamson replen = hdr.replen + op_decode_hdr_maxsz + 1; 25589f06c719SChuck Lever encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr); 2559cf8cdbe5SAndy Adamson 256028f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, 2561029d105eSJ. Bruce Fields args->acl_pages, args->acl_pgbase, args->acl_len); 2562bf118a34SAndy Adamson xdr_set_scratch_buffer(xdr, page_address(args->acl_scratch), PAGE_SIZE); 2563bf118a34SAndy Adamson 2564d017931cSAndy Adamson encode_nops(&hdr); 2565029d105eSJ. Bruce Fields } 2566029d105eSJ. Bruce Fields 2567029d105eSJ. Bruce Fields /* 25681da177e4SLinus Torvalds * Encode a WRITE request 25691da177e4SLinus Torvalds */ 25709f06c719SChuck Lever static void nfs4_xdr_enc_write(struct rpc_rqst *req, struct xdr_stream *xdr, 25719f06c719SChuck Lever struct nfs_writeargs *args) 25721da177e4SLinus Torvalds { 25731da177e4SLinus Torvalds struct compound_hdr hdr = { 257466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25751da177e4SLinus Torvalds }; 25761da177e4SLinus Torvalds 25779f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25789f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25799f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 25809f06c719SChuck Lever encode_write(xdr, args, &hdr); 25814f22ccc3S\"Talpey, Thomas\ req->rq_snd_buf.flags |= XDRBUF_WRITE; 25827ffd1064SFred Isaman if (args->bitmask) 25839f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2584d017931cSAndy Adamson encode_nops(&hdr); 25851da177e4SLinus Torvalds } 25861da177e4SLinus Torvalds 25871da177e4SLinus Torvalds /* 25881da177e4SLinus Torvalds * a COMMIT request 25891da177e4SLinus Torvalds */ 25909f06c719SChuck Lever static void nfs4_xdr_enc_commit(struct rpc_rqst *req, struct xdr_stream *xdr, 25919f06c719SChuck Lever struct nfs_writeargs *args) 25921da177e4SLinus Torvalds { 25931da177e4SLinus Torvalds struct compound_hdr hdr = { 259466cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 25951da177e4SLinus Torvalds }; 25961da177e4SLinus Torvalds 25979f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 25989f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 25999f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26009f06c719SChuck Lever encode_commit(xdr, args, &hdr); 2601988b6dceSFred Isaman if (args->bitmask) 26029f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2603d017931cSAndy Adamson encode_nops(&hdr); 26041da177e4SLinus Torvalds } 26051da177e4SLinus Torvalds 26061da177e4SLinus Torvalds /* 26071da177e4SLinus Torvalds * FSINFO request 26081da177e4SLinus Torvalds */ 26099f06c719SChuck Lever static void nfs4_xdr_enc_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 26109f06c719SChuck Lever struct nfs4_fsinfo_arg *args) 26111da177e4SLinus Torvalds { 26121da177e4SLinus Torvalds struct compound_hdr hdr = { 261366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26141da177e4SLinus Torvalds }; 26151da177e4SLinus Torvalds 26169f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26179f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26189f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26199f06c719SChuck Lever encode_fsinfo(xdr, args->bitmask, &hdr); 2620d017931cSAndy Adamson encode_nops(&hdr); 26211da177e4SLinus Torvalds } 26221da177e4SLinus Torvalds 26231da177e4SLinus Torvalds /* 26241da177e4SLinus Torvalds * a PATHCONF request 26251da177e4SLinus Torvalds */ 26269f06c719SChuck Lever static void nfs4_xdr_enc_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 26279f06c719SChuck Lever const struct nfs4_pathconf_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->fh, &hdr); 26369f06c719SChuck Lever encode_getattr_one(xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0], 2637d017931cSAndy Adamson &hdr); 2638d017931cSAndy Adamson encode_nops(&hdr); 26391da177e4SLinus Torvalds } 26401da177e4SLinus Torvalds 26411da177e4SLinus Torvalds /* 26421da177e4SLinus Torvalds * a STATFS request 26431da177e4SLinus Torvalds */ 26449f06c719SChuck Lever static void nfs4_xdr_enc_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 26459f06c719SChuck Lever const struct nfs4_statfs_arg *args) 26461da177e4SLinus Torvalds { 26471da177e4SLinus Torvalds struct compound_hdr hdr = { 264866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26491da177e4SLinus Torvalds }; 26501da177e4SLinus Torvalds 26519f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26529f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26539f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 26549f06c719SChuck Lever encode_getattr_two(xdr, args->bitmask[0] & nfs4_statfs_bitmap[0], 2655d017931cSAndy Adamson args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr); 2656d017931cSAndy Adamson encode_nops(&hdr); 26571da177e4SLinus Torvalds } 26581da177e4SLinus Torvalds 26591da177e4SLinus Torvalds /* 26601da177e4SLinus Torvalds * GETATTR_BITMAP request 26611da177e4SLinus Torvalds */ 26629f06c719SChuck Lever static void nfs4_xdr_enc_server_caps(struct rpc_rqst *req, 26639f06c719SChuck Lever struct xdr_stream *xdr, 266443652ad5SBenny Halevy struct nfs4_server_caps_arg *args) 26651da177e4SLinus Torvalds { 26661da177e4SLinus Torvalds struct compound_hdr hdr = { 266766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 26681da177e4SLinus Torvalds }; 26691da177e4SLinus Torvalds 26709f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26719f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 26729f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 26739f06c719SChuck Lever encode_getattr_one(xdr, FATTR4_WORD0_SUPPORTED_ATTRS| 26741da177e4SLinus Torvalds FATTR4_WORD0_LINK_SUPPORT| 26751da177e4SLinus Torvalds FATTR4_WORD0_SYMLINK_SUPPORT| 2676d017931cSAndy Adamson FATTR4_WORD0_ACLSUPPORT, &hdr); 2677d017931cSAndy Adamson encode_nops(&hdr); 26781da177e4SLinus Torvalds } 26791da177e4SLinus Torvalds 26801da177e4SLinus Torvalds /* 26811da177e4SLinus Torvalds * a RENEW request 26821da177e4SLinus Torvalds */ 26839f06c719SChuck Lever static void nfs4_xdr_enc_renew(struct rpc_rqst *req, struct xdr_stream *xdr, 26849f06c719SChuck Lever struct nfs_client *clp) 26851da177e4SLinus Torvalds { 26861da177e4SLinus Torvalds struct compound_hdr hdr = { 2687d017931cSAndy Adamson .nops = 0, 26881da177e4SLinus Torvalds }; 26891da177e4SLinus Torvalds 26909f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 26919f06c719SChuck Lever encode_renew(xdr, clp, &hdr); 2692d017931cSAndy Adamson encode_nops(&hdr); 26931da177e4SLinus Torvalds } 26941da177e4SLinus Torvalds 26951da177e4SLinus Torvalds /* 26961da177e4SLinus Torvalds * a SETCLIENTID request 26971da177e4SLinus Torvalds */ 26989f06c719SChuck Lever static void nfs4_xdr_enc_setclientid(struct rpc_rqst *req, 26999f06c719SChuck Lever struct xdr_stream *xdr, 27009f06c719SChuck Lever struct nfs4_setclientid *sc) 27011da177e4SLinus Torvalds { 27021da177e4SLinus Torvalds struct compound_hdr hdr = { 2703d017931cSAndy Adamson .nops = 0, 27041da177e4SLinus Torvalds }; 27051da177e4SLinus Torvalds 27069f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27079f06c719SChuck Lever encode_setclientid(xdr, sc, &hdr); 2708d017931cSAndy Adamson encode_nops(&hdr); 27091da177e4SLinus Torvalds } 27101da177e4SLinus Torvalds 27111da177e4SLinus Torvalds /* 27121da177e4SLinus Torvalds * a SETCLIENTID_CONFIRM request 27131da177e4SLinus Torvalds */ 27149f06c719SChuck Lever static void nfs4_xdr_enc_setclientid_confirm(struct rpc_rqst *req, 27159f06c719SChuck Lever struct xdr_stream *xdr, 27169f06c719SChuck Lever struct nfs4_setclientid_res *arg) 27171da177e4SLinus Torvalds { 27181da177e4SLinus Torvalds struct compound_hdr hdr = { 2719d017931cSAndy Adamson .nops = 0, 27201da177e4SLinus Torvalds }; 2721dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 27221da177e4SLinus Torvalds 27239f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27249f06c719SChuck Lever encode_setclientid_confirm(xdr, arg, &hdr); 27259f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 27269f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 2727d017931cSAndy Adamson encode_nops(&hdr); 27281da177e4SLinus Torvalds } 27291da177e4SLinus Torvalds 27301da177e4SLinus Torvalds /* 27311da177e4SLinus Torvalds * DELEGRETURN request 27321da177e4SLinus Torvalds */ 27339f06c719SChuck Lever static void nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, 27349f06c719SChuck Lever struct xdr_stream *xdr, 27359f06c719SChuck Lever const struct nfs4_delegreturnargs *args) 27361da177e4SLinus Torvalds { 27371da177e4SLinus Torvalds struct compound_hdr hdr = { 273866cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27391da177e4SLinus Torvalds }; 27401da177e4SLinus Torvalds 27419f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27429f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27439f06c719SChuck Lever encode_putfh(xdr, args->fhandle, &hdr); 27449f06c719SChuck Lever encode_delegreturn(xdr, args->stateid, &hdr); 27459f06c719SChuck Lever encode_getfattr(xdr, args->bitmask, &hdr); 2746d017931cSAndy Adamson encode_nops(&hdr); 27471da177e4SLinus Torvalds } 27481da177e4SLinus Torvalds 27491da177e4SLinus Torvalds /* 2750683b57b4STrond Myklebust * Encode FS_LOCATIONS request 2751683b57b4STrond Myklebust */ 27529f06c719SChuck Lever static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, 27539f06c719SChuck Lever struct xdr_stream *xdr, 27549f06c719SChuck Lever struct nfs4_fs_locations_arg *args) 2755683b57b4STrond Myklebust { 2756683b57b4STrond Myklebust struct compound_hdr hdr = { 275766cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2758683b57b4STrond Myklebust }; 275928f56694SBenny Halevy uint32_t replen; 2760683b57b4STrond Myklebust 27619f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 27629f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 27639f06c719SChuck Lever encode_putfh(xdr, args->dir_fh, &hdr); 27649f06c719SChuck Lever encode_lookup(xdr, args->name, &hdr); 276528f56694SBenny Halevy replen = hdr.replen; /* get the attribute into args->page */ 27669f06c719SChuck Lever encode_fs_locations(xdr, args->bitmask, &hdr); 2767cf8cdbe5SAndy Adamson 276828f56694SBenny Halevy xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page, 2769683b57b4STrond Myklebust 0, PAGE_SIZE); 2770d017931cSAndy Adamson encode_nops(&hdr); 2771683b57b4STrond Myklebust } 2772683b57b4STrond Myklebust 27735a5ea0d4SBryan Schumaker /* 27745a5ea0d4SBryan Schumaker * Encode SECINFO request 27755a5ea0d4SBryan Schumaker */ 27765a5ea0d4SBryan Schumaker static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req, 27775a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 27785a5ea0d4SBryan Schumaker struct nfs4_secinfo_arg *args) 27795a5ea0d4SBryan Schumaker { 27805a5ea0d4SBryan Schumaker struct compound_hdr hdr = { 27815a5ea0d4SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 27825a5ea0d4SBryan Schumaker }; 27835a5ea0d4SBryan Schumaker 27845a5ea0d4SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 27855a5ea0d4SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 27865a5ea0d4SBryan Schumaker encode_putfh(xdr, args->dir_fh, &hdr); 27875a5ea0d4SBryan Schumaker encode_secinfo(xdr, args->name, &hdr); 27885a5ea0d4SBryan Schumaker encode_nops(&hdr); 27895a5ea0d4SBryan Schumaker } 27905a5ea0d4SBryan Schumaker 279199fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 279299fe60d0SBenny Halevy /* 279399fe60d0SBenny Halevy * EXCHANGE_ID request 279499fe60d0SBenny Halevy */ 27959f06c719SChuck Lever static void nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, 27969f06c719SChuck Lever struct xdr_stream *xdr, 279799fe60d0SBenny Halevy struct nfs41_exchange_id_args *args) 279899fe60d0SBenny Halevy { 279999fe60d0SBenny Halevy struct compound_hdr hdr = { 2800a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 280199fe60d0SBenny Halevy }; 280299fe60d0SBenny Halevy 28039f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28049f06c719SChuck Lever encode_exchange_id(xdr, args, &hdr); 280599fe60d0SBenny Halevy encode_nops(&hdr); 280699fe60d0SBenny Halevy } 28072050f0ccSAndy Adamson 28082050f0ccSAndy Adamson /* 2809fc931582SAndy Adamson * a CREATE_SESSION request 2810fc931582SAndy Adamson */ 28119f06c719SChuck Lever static void nfs4_xdr_enc_create_session(struct rpc_rqst *req, 28129f06c719SChuck Lever struct xdr_stream *xdr, 2813fc931582SAndy Adamson struct nfs41_create_session_args *args) 2814fc931582SAndy Adamson { 2815fc931582SAndy Adamson struct compound_hdr hdr = { 2816a4432345STrond Myklebust .minorversion = args->client->cl_mvops->minor_version, 2817fc931582SAndy Adamson }; 2818fc931582SAndy Adamson 28199f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28209f06c719SChuck Lever encode_create_session(xdr, args, &hdr); 2821fc931582SAndy Adamson encode_nops(&hdr); 2822fc931582SAndy Adamson } 2823fc931582SAndy Adamson 2824fc931582SAndy Adamson /* 28250f3e66c6SAndy Adamson * a DESTROY_SESSION request 28260f3e66c6SAndy Adamson */ 28279f06c719SChuck Lever static void nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, 28289f06c719SChuck Lever struct xdr_stream *xdr, 28290f3e66c6SAndy Adamson struct nfs4_session *session) 28300f3e66c6SAndy Adamson { 28310f3e66c6SAndy Adamson struct compound_hdr hdr = { 2832a4432345STrond Myklebust .minorversion = session->clp->cl_mvops->minor_version, 28330f3e66c6SAndy Adamson }; 28340f3e66c6SAndy Adamson 28359f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28369f06c719SChuck Lever encode_destroy_session(xdr, session, &hdr); 28370f3e66c6SAndy Adamson encode_nops(&hdr); 28380f3e66c6SAndy Adamson } 28390f3e66c6SAndy Adamson 28400f3e66c6SAndy Adamson /* 2841fc01cea9SAndy Adamson * a SEQUENCE request 2842fc01cea9SAndy Adamson */ 28439f06c719SChuck Lever static void nfs4_xdr_enc_sequence(struct rpc_rqst *req, struct xdr_stream *xdr, 2844fc01cea9SAndy Adamson struct nfs4_sequence_args *args) 2845fc01cea9SAndy Adamson { 2846fc01cea9SAndy Adamson struct compound_hdr hdr = { 2847fc01cea9SAndy Adamson .minorversion = nfs4_xdr_minorversion(args), 2848fc01cea9SAndy Adamson }; 2849fc01cea9SAndy Adamson 28509f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28519f06c719SChuck Lever encode_sequence(xdr, args, &hdr); 2852fc01cea9SAndy Adamson encode_nops(&hdr); 2853fc01cea9SAndy Adamson } 2854fc01cea9SAndy Adamson 2855fc01cea9SAndy Adamson /* 28562050f0ccSAndy Adamson * a GET_LEASE_TIME request 28572050f0ccSAndy Adamson */ 28589f06c719SChuck Lever static void nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, 28599f06c719SChuck Lever struct xdr_stream *xdr, 28602050f0ccSAndy Adamson struct nfs4_get_lease_time_args *args) 28612050f0ccSAndy Adamson { 28622050f0ccSAndy Adamson struct compound_hdr hdr = { 28632050f0ccSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->la_seq_args), 28642050f0ccSAndy Adamson }; 2865dae100c2SFred Isaman const u32 lease_bitmap[3] = { FATTR4_WORD0_LEASE_TIME }; 28662050f0ccSAndy Adamson 28679f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28689f06c719SChuck Lever encode_sequence(xdr, &args->la_seq_args, &hdr); 28699f06c719SChuck Lever encode_putrootfh(xdr, &hdr); 28709f06c719SChuck Lever encode_fsinfo(xdr, lease_bitmap, &hdr); 28712050f0ccSAndy Adamson encode_nops(&hdr); 28722050f0ccSAndy Adamson } 287318019753SRicardo Labiaga 287418019753SRicardo Labiaga /* 287518019753SRicardo Labiaga * a RECLAIM_COMPLETE request 287618019753SRicardo Labiaga */ 28779f06c719SChuck Lever static void nfs4_xdr_enc_reclaim_complete(struct rpc_rqst *req, 28789f06c719SChuck Lever struct xdr_stream *xdr, 287918019753SRicardo Labiaga struct nfs41_reclaim_complete_args *args) 288018019753SRicardo Labiaga { 288118019753SRicardo Labiaga struct compound_hdr hdr = { 288218019753SRicardo Labiaga .minorversion = nfs4_xdr_minorversion(&args->seq_args) 288318019753SRicardo Labiaga }; 288418019753SRicardo Labiaga 28859f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 28869f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 28879f06c719SChuck Lever encode_reclaim_complete(xdr, args, &hdr); 288818019753SRicardo Labiaga encode_nops(&hdr); 288918019753SRicardo Labiaga } 289018019753SRicardo Labiaga 2891b1f69b75SAndy Adamson /* 28927f11d8d3SAndy Adamson * Encode GETDEVICELIST request 28937f11d8d3SAndy Adamson */ 28947f11d8d3SAndy Adamson static void nfs4_xdr_enc_getdevicelist(struct rpc_rqst *req, 28957f11d8d3SAndy Adamson struct xdr_stream *xdr, 28967f11d8d3SAndy Adamson struct nfs4_getdevicelist_args *args) 28977f11d8d3SAndy Adamson { 28987f11d8d3SAndy Adamson struct compound_hdr hdr = { 28997f11d8d3SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 29007f11d8d3SAndy Adamson }; 29017f11d8d3SAndy Adamson 29027f11d8d3SAndy Adamson encode_compound_hdr(xdr, req, &hdr); 29037f11d8d3SAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 29047f11d8d3SAndy Adamson encode_putfh(xdr, args->fh, &hdr); 29057f11d8d3SAndy Adamson encode_getdevicelist(xdr, args, &hdr); 29067f11d8d3SAndy Adamson encode_nops(&hdr); 29077f11d8d3SAndy Adamson } 29087f11d8d3SAndy Adamson 29097f11d8d3SAndy Adamson /* 2910b1f69b75SAndy Adamson * Encode GETDEVICEINFO request 2911b1f69b75SAndy Adamson */ 29129f06c719SChuck Lever static void nfs4_xdr_enc_getdeviceinfo(struct rpc_rqst *req, 29139f06c719SChuck Lever struct xdr_stream *xdr, 2914b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_args *args) 2915b1f69b75SAndy Adamson { 2916b1f69b75SAndy Adamson struct compound_hdr hdr = { 2917b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2918b1f69b75SAndy Adamson }; 2919b1f69b75SAndy Adamson 29209f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29219f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29229f06c719SChuck Lever encode_getdeviceinfo(xdr, args, &hdr); 2923b1f69b75SAndy Adamson 2924b1f69b75SAndy Adamson /* set up reply kvec. Subtract notification bitmap max size (2) 2925b1f69b75SAndy Adamson * so that notification bitmap is put in xdr_buf tail */ 2926b1f69b75SAndy Adamson xdr_inline_pages(&req->rq_rcv_buf, (hdr.replen - 2) << 2, 2927b1f69b75SAndy Adamson args->pdev->pages, args->pdev->pgbase, 2928b1f69b75SAndy Adamson args->pdev->pglen); 2929b1f69b75SAndy Adamson 2930b1f69b75SAndy Adamson encode_nops(&hdr); 2931b1f69b75SAndy Adamson } 2932b1f69b75SAndy Adamson 2933b1f69b75SAndy Adamson /* 2934b1f69b75SAndy Adamson * Encode LAYOUTGET request 2935b1f69b75SAndy Adamson */ 29369f06c719SChuck Lever static void nfs4_xdr_enc_layoutget(struct rpc_rqst *req, 29379f06c719SChuck Lever struct xdr_stream *xdr, 2938b1f69b75SAndy Adamson struct nfs4_layoutget_args *args) 2939b1f69b75SAndy Adamson { 2940b1f69b75SAndy Adamson struct compound_hdr hdr = { 2941b1f69b75SAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2942b1f69b75SAndy Adamson }; 2943b1f69b75SAndy Adamson 29449f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 29459f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 29469f06c719SChuck Lever encode_putfh(xdr, NFS_FH(args->inode), &hdr); 29479f06c719SChuck Lever encode_layoutget(xdr, args, &hdr); 294835124a09SWeston Andros Adamson 294935124a09SWeston Andros Adamson xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, 295035124a09SWeston Andros Adamson args->layout.pages, 0, args->layout.pglen); 295135124a09SWeston Andros Adamson 2952b1f69b75SAndy Adamson encode_nops(&hdr); 2953b1f69b75SAndy Adamson } 2954863a3c6cSAndy Adamson 2955863a3c6cSAndy Adamson /* 2956863a3c6cSAndy Adamson * Encode LAYOUTCOMMIT request 2957863a3c6cSAndy Adamson */ 2958cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutcommit(struct rpc_rqst *req, 2959863a3c6cSAndy Adamson struct xdr_stream *xdr, 2960863a3c6cSAndy Adamson struct nfs4_layoutcommit_args *args) 2961863a3c6cSAndy Adamson { 2962ac7db726SBenny Halevy struct nfs4_layoutcommit_data *data = 2963ac7db726SBenny Halevy container_of(args, struct nfs4_layoutcommit_data, args); 2964863a3c6cSAndy Adamson struct compound_hdr hdr = { 2965863a3c6cSAndy Adamson .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2966863a3c6cSAndy Adamson }; 2967863a3c6cSAndy Adamson 2968863a3c6cSAndy Adamson encode_compound_hdr(xdr, req, &hdr); 2969863a3c6cSAndy Adamson encode_sequence(xdr, &args->seq_args, &hdr); 2970863a3c6cSAndy Adamson encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2971ac7db726SBenny Halevy encode_layoutcommit(xdr, data->args.inode, args, &hdr); 2972863a3c6cSAndy Adamson encode_getfattr(xdr, args->bitmask, &hdr); 2973863a3c6cSAndy Adamson encode_nops(&hdr); 2974cbe82603SBenny Halevy } 2975cbe82603SBenny Halevy 2976cbe82603SBenny Halevy /* 2977cbe82603SBenny Halevy * Encode LAYOUTRETURN request 2978cbe82603SBenny Halevy */ 2979cbe82603SBenny Halevy static void nfs4_xdr_enc_layoutreturn(struct rpc_rqst *req, 2980cbe82603SBenny Halevy struct xdr_stream *xdr, 2981cbe82603SBenny Halevy struct nfs4_layoutreturn_args *args) 2982cbe82603SBenny Halevy { 2983cbe82603SBenny Halevy struct compound_hdr hdr = { 2984cbe82603SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 2985cbe82603SBenny Halevy }; 2986cbe82603SBenny Halevy 2987cbe82603SBenny Halevy encode_compound_hdr(xdr, req, &hdr); 2988cbe82603SBenny Halevy encode_sequence(xdr, &args->seq_args, &hdr); 2989cbe82603SBenny Halevy encode_putfh(xdr, NFS_FH(args->inode), &hdr); 2990cbe82603SBenny Halevy encode_layoutreturn(xdr, args, &hdr); 2991cbe82603SBenny Halevy encode_nops(&hdr); 2992863a3c6cSAndy Adamson } 2993fca78d6dSBryan Schumaker 2994fca78d6dSBryan Schumaker /* 2995fca78d6dSBryan Schumaker * Encode SECINFO_NO_NAME request 2996fca78d6dSBryan Schumaker */ 2997fca78d6dSBryan Schumaker static int nfs4_xdr_enc_secinfo_no_name(struct rpc_rqst *req, 2998fca78d6dSBryan Schumaker struct xdr_stream *xdr, 2999fca78d6dSBryan Schumaker struct nfs41_secinfo_no_name_args *args) 3000fca78d6dSBryan Schumaker { 3001fca78d6dSBryan Schumaker struct compound_hdr hdr = { 3002fca78d6dSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 3003fca78d6dSBryan Schumaker }; 3004fca78d6dSBryan Schumaker 3005fca78d6dSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 3006fca78d6dSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 3007fca78d6dSBryan Schumaker encode_putrootfh(xdr, &hdr); 3008fca78d6dSBryan Schumaker encode_secinfo_no_name(xdr, args, &hdr); 3009fca78d6dSBryan Schumaker encode_nops(&hdr); 3010fca78d6dSBryan Schumaker return 0; 3011fca78d6dSBryan Schumaker } 30127d974794SBryan Schumaker 30137d974794SBryan Schumaker /* 30147d974794SBryan Schumaker * Encode TEST_STATEID request 30157d974794SBryan Schumaker */ 30167d974794SBryan Schumaker static void nfs4_xdr_enc_test_stateid(struct rpc_rqst *req, 30177d974794SBryan Schumaker struct xdr_stream *xdr, 30187d974794SBryan Schumaker struct nfs41_test_stateid_args *args) 30197d974794SBryan Schumaker { 30207d974794SBryan Schumaker struct compound_hdr hdr = { 30217d974794SBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30227d974794SBryan Schumaker }; 30237d974794SBryan Schumaker 30247d974794SBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30257d974794SBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30267d974794SBryan Schumaker encode_test_stateid(xdr, args, &hdr); 30277d974794SBryan Schumaker encode_nops(&hdr); 30287d974794SBryan Schumaker } 30299aeda35fSBryan Schumaker 30309aeda35fSBryan Schumaker /* 30319aeda35fSBryan Schumaker * Encode FREE_STATEID request 30329aeda35fSBryan Schumaker */ 30339aeda35fSBryan Schumaker static void nfs4_xdr_enc_free_stateid(struct rpc_rqst *req, 30349aeda35fSBryan Schumaker struct xdr_stream *xdr, 30359aeda35fSBryan Schumaker struct nfs41_free_stateid_args *args) 30369aeda35fSBryan Schumaker { 30379aeda35fSBryan Schumaker struct compound_hdr hdr = { 30389aeda35fSBryan Schumaker .minorversion = nfs4_xdr_minorversion(&args->seq_args), 30399aeda35fSBryan Schumaker }; 30409aeda35fSBryan Schumaker 30419aeda35fSBryan Schumaker encode_compound_hdr(xdr, req, &hdr); 30429aeda35fSBryan Schumaker encode_sequence(xdr, &args->seq_args, &hdr); 30439aeda35fSBryan Schumaker encode_free_stateid(xdr, args, &hdr); 30449aeda35fSBryan Schumaker encode_nops(&hdr); 30459aeda35fSBryan Schumaker } 304699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 304799fe60d0SBenny Halevy 3048686841b3SBenny Halevy static void print_overflow_msg(const char *func, const struct xdr_stream *xdr) 3049686841b3SBenny Halevy { 3050686841b3SBenny Halevy dprintk("nfs: %s: prematurely hit end of receive buffer. " 3051686841b3SBenny Halevy "Remaining buffer length is %tu words.\n", 3052686841b3SBenny Halevy func, xdr->end - xdr->p); 3053686841b3SBenny Halevy } 30541da177e4SLinus Torvalds 3055683b57b4STrond Myklebust static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string) 30561da177e4SLinus Torvalds { 30578687b63aSAl Viro __be32 *p; 30581da177e4SLinus Torvalds 3059c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3060c0eae66eSBenny Halevy if (unlikely(!p)) 3061c0eae66eSBenny Halevy goto out_overflow; 3062cccddf4fSBenny Halevy *len = be32_to_cpup(p); 3063c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, *len); 3064c0eae66eSBenny Halevy if (unlikely(!p)) 3065c0eae66eSBenny Halevy goto out_overflow; 30661da177e4SLinus Torvalds *string = (char *)p; 30671da177e4SLinus Torvalds return 0; 3068c0eae66eSBenny Halevy out_overflow: 3069c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3070c0eae66eSBenny Halevy return -EIO; 30711da177e4SLinus Torvalds } 30721da177e4SLinus Torvalds 30731da177e4SLinus Torvalds static int decode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr) 30741da177e4SLinus Torvalds { 30758687b63aSAl Viro __be32 *p; 30761da177e4SLinus Torvalds 3077c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3078c0eae66eSBenny Halevy if (unlikely(!p)) 3079c0eae66eSBenny Halevy goto out_overflow; 30806f723f77SBenny Halevy hdr->status = be32_to_cpup(p++); 3081cccddf4fSBenny Halevy hdr->taglen = be32_to_cpup(p); 30821da177e4SLinus Torvalds 3083c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, hdr->taglen + 4); 3084c0eae66eSBenny Halevy if (unlikely(!p)) 3085c0eae66eSBenny Halevy goto out_overflow; 30861da177e4SLinus Torvalds hdr->tag = (char *)p; 30871da177e4SLinus Torvalds p += XDR_QUADLEN(hdr->taglen); 3088cccddf4fSBenny Halevy hdr->nops = be32_to_cpup(p); 3089aadf6152SBenny Halevy if (unlikely(hdr->nops < 1)) 3090aadf6152SBenny Halevy return nfs4_stat_to_errno(hdr->status); 30911da177e4SLinus Torvalds return 0; 3092c0eae66eSBenny Halevy out_overflow: 3093c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3094c0eae66eSBenny Halevy return -EIO; 30951da177e4SLinus Torvalds } 30961da177e4SLinus Torvalds 30971da177e4SLinus Torvalds static int decode_op_hdr(struct xdr_stream *xdr, enum nfs_opnum4 expected) 30981da177e4SLinus Torvalds { 30998687b63aSAl Viro __be32 *p; 31001da177e4SLinus Torvalds uint32_t opnum; 31011da177e4SLinus Torvalds int32_t nfserr; 31021da177e4SLinus Torvalds 3103c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3104c0eae66eSBenny Halevy if (unlikely(!p)) 3105c0eae66eSBenny Halevy goto out_overflow; 31066f723f77SBenny Halevy opnum = be32_to_cpup(p++); 31071da177e4SLinus Torvalds if (opnum != expected) { 3108fe82a183SChuck Lever dprintk("nfs: Server returned operation" 31091da177e4SLinus Torvalds " %d but we issued a request for %d\n", 31101da177e4SLinus Torvalds opnum, expected); 31111da177e4SLinus Torvalds return -EIO; 31121da177e4SLinus Torvalds } 3113cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 31141da177e4SLinus Torvalds if (nfserr != NFS_OK) 3115856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 31161da177e4SLinus Torvalds return 0; 3117c0eae66eSBenny Halevy out_overflow: 3118c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3119c0eae66eSBenny Halevy return -EIO; 31201da177e4SLinus Torvalds } 31211da177e4SLinus Torvalds 31221da177e4SLinus Torvalds /* Dummy routine */ 3123adfa6f98SDavid Howells static int decode_ace(struct xdr_stream *xdr, void *ace, struct nfs_client *clp) 31241da177e4SLinus Torvalds { 31258687b63aSAl Viro __be32 *p; 3126683b57b4STrond Myklebust unsigned int strlen; 31271da177e4SLinus Torvalds char *str; 31281da177e4SLinus Torvalds 3129c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 3130c0eae66eSBenny Halevy if (likely(p)) 31311da177e4SLinus Torvalds return decode_opaque_inline(xdr, &strlen, &str); 3132c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3133c0eae66eSBenny Halevy return -EIO; 31341da177e4SLinus Torvalds } 31351da177e4SLinus Torvalds 31361da177e4SLinus Torvalds static int decode_attr_bitmap(struct xdr_stream *xdr, uint32_t *bitmap) 31371da177e4SLinus Torvalds { 31388687b63aSAl Viro uint32_t bmlen; 31398687b63aSAl Viro __be32 *p; 31401da177e4SLinus Torvalds 3141c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3142c0eae66eSBenny Halevy if (unlikely(!p)) 3143c0eae66eSBenny Halevy goto out_overflow; 3144cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 31451da177e4SLinus Torvalds 3146dae100c2SFred Isaman bitmap[0] = bitmap[1] = bitmap[2] = 0; 3147c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, (bmlen << 2)); 3148c0eae66eSBenny Halevy if (unlikely(!p)) 3149c0eae66eSBenny Halevy goto out_overflow; 31501da177e4SLinus Torvalds if (bmlen > 0) { 31516f723f77SBenny Halevy bitmap[0] = be32_to_cpup(p++); 3152dae100c2SFred Isaman if (bmlen > 1) { 3153dae100c2SFred Isaman bitmap[1] = be32_to_cpup(p++); 3154dae100c2SFred Isaman if (bmlen > 2) 3155dae100c2SFred Isaman bitmap[2] = be32_to_cpup(p); 3156dae100c2SFred Isaman } 31571da177e4SLinus Torvalds } 31581da177e4SLinus Torvalds return 0; 3159c0eae66eSBenny Halevy out_overflow: 3160c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3161c0eae66eSBenny Halevy return -EIO; 31621da177e4SLinus Torvalds } 31631da177e4SLinus Torvalds 31648687b63aSAl Viro static inline int decode_attr_length(struct xdr_stream *xdr, uint32_t *attrlen, __be32 **savep) 31651da177e4SLinus Torvalds { 31668687b63aSAl Viro __be32 *p; 31671da177e4SLinus Torvalds 3168c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3169c0eae66eSBenny Halevy if (unlikely(!p)) 3170c0eae66eSBenny Halevy goto out_overflow; 3171cccddf4fSBenny Halevy *attrlen = be32_to_cpup(p); 31721da177e4SLinus Torvalds *savep = xdr->p; 31731da177e4SLinus Torvalds return 0; 3174c0eae66eSBenny Halevy out_overflow: 3175c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3176c0eae66eSBenny Halevy return -EIO; 31771da177e4SLinus Torvalds } 31781da177e4SLinus Torvalds 31791da177e4SLinus Torvalds static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask) 31801da177e4SLinus Torvalds { 31811da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) { 31823388bff5SRoman Borisov int ret; 31833388bff5SRoman Borisov ret = decode_attr_bitmap(xdr, bitmask); 31843388bff5SRoman Borisov if (unlikely(ret < 0)) 31853388bff5SRoman Borisov return ret; 31861da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS; 31871da177e4SLinus Torvalds } else 3188dae100c2SFred Isaman bitmask[0] = bitmask[1] = bitmask[2] = 0; 3189dae100c2SFred Isaman dprintk("%s: bitmask=%08x:%08x:%08x\n", __func__, 3190dae100c2SFred Isaman bitmask[0], bitmask[1], bitmask[2]); 31911da177e4SLinus Torvalds return 0; 31921da177e4SLinus Torvalds } 31931da177e4SLinus Torvalds 31941da177e4SLinus Torvalds static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *type) 31951da177e4SLinus Torvalds { 31968687b63aSAl Viro __be32 *p; 3197409924e4STrond Myklebust int ret = 0; 31981da177e4SLinus Torvalds 31991da177e4SLinus Torvalds *type = 0; 32001da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_TYPE - 1U))) 32011da177e4SLinus Torvalds return -EIO; 32021da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_TYPE)) { 3203c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3204c0eae66eSBenny Halevy if (unlikely(!p)) 3205c0eae66eSBenny Halevy goto out_overflow; 3206cccddf4fSBenny Halevy *type = be32_to_cpup(p); 32071da177e4SLinus Torvalds if (*type < NF4REG || *type > NF4NAMEDATTR) { 32083110ff80SHarvey Harrison dprintk("%s: bad type %d\n", __func__, *type); 32091da177e4SLinus Torvalds return -EIO; 32101da177e4SLinus Torvalds } 32111da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_TYPE; 3212409924e4STrond Myklebust ret = NFS_ATTR_FATTR_TYPE; 32131da177e4SLinus Torvalds } 3214bca79478STrond Myklebust dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]); 3215409924e4STrond Myklebust return ret; 3216c0eae66eSBenny Halevy out_overflow: 3217c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3218c0eae66eSBenny Halevy return -EIO; 32191da177e4SLinus Torvalds } 32201da177e4SLinus Torvalds 32211da177e4SLinus Torvalds static int decode_attr_change(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *change) 32221da177e4SLinus Torvalds { 32238687b63aSAl Viro __be32 *p; 3224409924e4STrond Myklebust int ret = 0; 32251da177e4SLinus Torvalds 32261da177e4SLinus Torvalds *change = 0; 32271da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_CHANGE - 1U))) 32281da177e4SLinus Torvalds return -EIO; 32291da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_CHANGE)) { 3230c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3231c0eae66eSBenny Halevy if (unlikely(!p)) 3232c0eae66eSBenny Halevy goto out_overflow; 3233cccddf4fSBenny Halevy xdr_decode_hyper(p, change); 32341da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_CHANGE; 3235409924e4STrond Myklebust ret = NFS_ATTR_FATTR_CHANGE; 32361da177e4SLinus Torvalds } 32373110ff80SHarvey Harrison dprintk("%s: change attribute=%Lu\n", __func__, 32381da177e4SLinus Torvalds (unsigned long long)*change); 3239409924e4STrond Myklebust return ret; 3240c0eae66eSBenny Halevy out_overflow: 3241c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3242c0eae66eSBenny Halevy return -EIO; 32431da177e4SLinus Torvalds } 32441da177e4SLinus Torvalds 32451da177e4SLinus Torvalds static int decode_attr_size(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *size) 32461da177e4SLinus Torvalds { 32478687b63aSAl Viro __be32 *p; 3248409924e4STrond Myklebust int ret = 0; 32491da177e4SLinus Torvalds 32501da177e4SLinus Torvalds *size = 0; 32511da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SIZE - 1U))) 32521da177e4SLinus Torvalds return -EIO; 32531da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SIZE)) { 3254c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3255c0eae66eSBenny Halevy if (unlikely(!p)) 3256c0eae66eSBenny Halevy goto out_overflow; 3257cccddf4fSBenny Halevy xdr_decode_hyper(p, size); 32581da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SIZE; 3259409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SIZE; 32601da177e4SLinus Torvalds } 32613110ff80SHarvey Harrison dprintk("%s: file size=%Lu\n", __func__, (unsigned long long)*size); 3262409924e4STrond Myklebust return ret; 3263c0eae66eSBenny Halevy out_overflow: 3264c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3265c0eae66eSBenny Halevy return -EIO; 32661da177e4SLinus Torvalds } 32671da177e4SLinus Torvalds 32681da177e4SLinus Torvalds static int decode_attr_link_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32691da177e4SLinus Torvalds { 32708687b63aSAl Viro __be32 *p; 32711da177e4SLinus Torvalds 32721da177e4SLinus Torvalds *res = 0; 32731da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LINK_SUPPORT - 1U))) 32741da177e4SLinus Torvalds return -EIO; 32751da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LINK_SUPPORT)) { 3276c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3277c0eae66eSBenny Halevy if (unlikely(!p)) 3278c0eae66eSBenny Halevy goto out_overflow; 3279cccddf4fSBenny Halevy *res = be32_to_cpup(p); 32801da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LINK_SUPPORT; 32811da177e4SLinus Torvalds } 32823110ff80SHarvey Harrison dprintk("%s: link support=%s\n", __func__, *res == 0 ? "false" : "true"); 32831da177e4SLinus Torvalds return 0; 3284c0eae66eSBenny Halevy out_overflow: 3285c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3286c0eae66eSBenny Halevy return -EIO; 32871da177e4SLinus Torvalds } 32881da177e4SLinus Torvalds 32891da177e4SLinus Torvalds static int decode_attr_symlink_support(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 32901da177e4SLinus Torvalds { 32918687b63aSAl Viro __be32 *p; 32921da177e4SLinus Torvalds 32931da177e4SLinus Torvalds *res = 0; 32941da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_SYMLINK_SUPPORT - 1U))) 32951da177e4SLinus Torvalds return -EIO; 32961da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_SYMLINK_SUPPORT)) { 3297c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3298c0eae66eSBenny Halevy if (unlikely(!p)) 3299c0eae66eSBenny Halevy goto out_overflow; 3300cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33011da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_SYMLINK_SUPPORT; 33021da177e4SLinus Torvalds } 33033110ff80SHarvey Harrison dprintk("%s: symlink support=%s\n", __func__, *res == 0 ? "false" : "true"); 33041da177e4SLinus Torvalds return 0; 3305c0eae66eSBenny Halevy out_overflow: 3306c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3307c0eae66eSBenny Halevy return -EIO; 33081da177e4SLinus Torvalds } 33091da177e4SLinus Torvalds 33108b4bdcf8STrond Myklebust static int decode_attr_fsid(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fsid *fsid) 33111da177e4SLinus Torvalds { 33128687b63aSAl Viro __be32 *p; 3313409924e4STrond Myklebust int ret = 0; 33141da177e4SLinus Torvalds 33151da177e4SLinus Torvalds fsid->major = 0; 33161da177e4SLinus Torvalds fsid->minor = 0; 33171da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FSID - 1U))) 33181da177e4SLinus Torvalds return -EIO; 33191da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FSID)) { 3320c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 3321c0eae66eSBenny Halevy if (unlikely(!p)) 3322c0eae66eSBenny Halevy goto out_overflow; 33233ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &fsid->major); 3324cccddf4fSBenny Halevy xdr_decode_hyper(p, &fsid->minor); 33251da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FSID; 3326409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FSID; 33271da177e4SLinus Torvalds } 33283110ff80SHarvey Harrison dprintk("%s: fsid=(0x%Lx/0x%Lx)\n", __func__, 33291da177e4SLinus Torvalds (unsigned long long)fsid->major, 33301da177e4SLinus Torvalds (unsigned long long)fsid->minor); 3331409924e4STrond Myklebust return ret; 3332c0eae66eSBenny Halevy out_overflow: 3333c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3334c0eae66eSBenny Halevy return -EIO; 33351da177e4SLinus Torvalds } 33361da177e4SLinus Torvalds 33371da177e4SLinus Torvalds static int decode_attr_lease_time(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 33381da177e4SLinus Torvalds { 33398687b63aSAl Viro __be32 *p; 33401da177e4SLinus Torvalds 33411da177e4SLinus Torvalds *res = 60; 33421da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_LEASE_TIME - 1U))) 33431da177e4SLinus Torvalds return -EIO; 33441da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_LEASE_TIME)) { 3345c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3346c0eae66eSBenny Halevy if (unlikely(!p)) 3347c0eae66eSBenny Halevy goto out_overflow; 3348cccddf4fSBenny Halevy *res = be32_to_cpup(p); 33491da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_LEASE_TIME; 33501da177e4SLinus Torvalds } 33513110ff80SHarvey Harrison dprintk("%s: file size=%u\n", __func__, (unsigned int)*res); 33521da177e4SLinus Torvalds return 0; 3353c0eae66eSBenny Halevy out_overflow: 3354c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3355c0eae66eSBenny Halevy return -EIO; 33561da177e4SLinus Torvalds } 33571da177e4SLinus Torvalds 3358ee7b75fcSTrond Myklebust static int decode_attr_error(struct xdr_stream *xdr, uint32_t *bitmap, int32_t *res) 3359ae42c70aSBryan Schumaker { 3360ae42c70aSBryan Schumaker __be32 *p; 3361ae42c70aSBryan Schumaker 3362ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_RDATTR_ERROR - 1U))) 3363ae42c70aSBryan Schumaker return -EIO; 3364ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_RDATTR_ERROR)) { 3365ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3366ae42c70aSBryan Schumaker if (unlikely(!p)) 3367ae42c70aSBryan Schumaker goto out_overflow; 3368ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_RDATTR_ERROR; 3369ee7b75fcSTrond Myklebust *res = -be32_to_cpup(p); 3370ae42c70aSBryan Schumaker } 3371ae42c70aSBryan Schumaker return 0; 3372ae42c70aSBryan Schumaker out_overflow: 3373ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3374ae42c70aSBryan Schumaker return -EIO; 3375ae42c70aSBryan Schumaker } 3376ae42c70aSBryan Schumaker 3377ae42c70aSBryan Schumaker static int decode_attr_filehandle(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs_fh *fh) 3378ae42c70aSBryan Schumaker { 3379ae42c70aSBryan Schumaker __be32 *p; 3380ae42c70aSBryan Schumaker int len; 3381ae42c70aSBryan Schumaker 33827ad07353STrond Myklebust if (fh != NULL) 3383ae42c70aSBryan Schumaker memset(fh, 0, sizeof(*fh)); 3384ae42c70aSBryan Schumaker 3385ae42c70aSBryan Schumaker if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEHANDLE - 1U))) 3386ae42c70aSBryan Schumaker return -EIO; 3387ae42c70aSBryan Schumaker if (likely(bitmap[0] & FATTR4_WORD0_FILEHANDLE)) { 3388ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, 4); 3389ae42c70aSBryan Schumaker if (unlikely(!p)) 3390ae42c70aSBryan Schumaker goto out_overflow; 3391ae42c70aSBryan Schumaker len = be32_to_cpup(p); 3392ae42c70aSBryan Schumaker if (len > NFS4_FHSIZE) 3393ae42c70aSBryan Schumaker return -EIO; 3394ae42c70aSBryan Schumaker p = xdr_inline_decode(xdr, len); 3395ae42c70aSBryan Schumaker if (unlikely(!p)) 3396ae42c70aSBryan Schumaker goto out_overflow; 33977ad07353STrond Myklebust if (fh != NULL) { 3398ae42c70aSBryan Schumaker memcpy(fh->data, p, len); 33997ad07353STrond Myklebust fh->size = len; 34007ad07353STrond Myklebust } 3401ae42c70aSBryan Schumaker bitmap[0] &= ~FATTR4_WORD0_FILEHANDLE; 3402ae42c70aSBryan Schumaker } 3403ae42c70aSBryan Schumaker return 0; 3404ae42c70aSBryan Schumaker out_overflow: 3405ae42c70aSBryan Schumaker print_overflow_msg(__func__, xdr); 3406ae42c70aSBryan Schumaker return -EIO; 3407ae42c70aSBryan Schumaker } 3408ae42c70aSBryan Schumaker 34091da177e4SLinus Torvalds static int decode_attr_aclsupport(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 34101da177e4SLinus Torvalds { 34118687b63aSAl Viro __be32 *p; 34121da177e4SLinus Torvalds 34131da177e4SLinus Torvalds *res = ACL4_SUPPORT_ALLOW_ACL|ACL4_SUPPORT_DENY_ACL; 34141da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_ACLSUPPORT - 1U))) 34151da177e4SLinus Torvalds return -EIO; 34161da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_ACLSUPPORT)) { 3417c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3418c0eae66eSBenny Halevy if (unlikely(!p)) 3419c0eae66eSBenny Halevy goto out_overflow; 3420cccddf4fSBenny Halevy *res = be32_to_cpup(p); 34211da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_ACLSUPPORT; 34221da177e4SLinus Torvalds } 34233110ff80SHarvey Harrison dprintk("%s: ACLs supported=%u\n", __func__, (unsigned int)*res); 34241da177e4SLinus Torvalds return 0; 3425c0eae66eSBenny Halevy out_overflow: 3426c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3427c0eae66eSBenny Halevy return -EIO; 34281da177e4SLinus Torvalds } 34291da177e4SLinus Torvalds 34301da177e4SLinus Torvalds static int decode_attr_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 34311da177e4SLinus Torvalds { 34328687b63aSAl Viro __be32 *p; 3433409924e4STrond Myklebust int ret = 0; 34341da177e4SLinus Torvalds 34351da177e4SLinus Torvalds *fileid = 0; 34361da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILEID - 1U))) 34371da177e4SLinus Torvalds return -EIO; 34381da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILEID)) { 3439c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3440c0eae66eSBenny Halevy if (unlikely(!p)) 3441c0eae66eSBenny Halevy goto out_overflow; 3442cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 34431da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILEID; 3444409924e4STrond Myklebust ret = NFS_ATTR_FATTR_FILEID; 34451da177e4SLinus Torvalds } 34463110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3447409924e4STrond Myklebust return ret; 3448c0eae66eSBenny Halevy out_overflow: 3449c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3450c0eae66eSBenny Halevy return -EIO; 34511da177e4SLinus Torvalds } 34521da177e4SLinus Torvalds 345399baf625SManoj Naik static int decode_attr_mounted_on_fileid(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *fileid) 345499baf625SManoj Naik { 34558687b63aSAl Viro __be32 *p; 3456409924e4STrond Myklebust int ret = 0; 345799baf625SManoj Naik 345899baf625SManoj Naik *fileid = 0; 345999baf625SManoj Naik if (unlikely(bitmap[1] & (FATTR4_WORD1_MOUNTED_ON_FILEID - 1U))) 346099baf625SManoj Naik return -EIO; 346199baf625SManoj Naik if (likely(bitmap[1] & FATTR4_WORD1_MOUNTED_ON_FILEID)) { 3462c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3463c0eae66eSBenny Halevy if (unlikely(!p)) 3464c0eae66eSBenny Halevy goto out_overflow; 3465cccddf4fSBenny Halevy xdr_decode_hyper(p, fileid); 346699baf625SManoj Naik bitmap[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID; 346728331a46STrond Myklebust ret = NFS_ATTR_FATTR_MOUNTED_ON_FILEID; 346899baf625SManoj Naik } 34693110ff80SHarvey Harrison dprintk("%s: fileid=%Lu\n", __func__, (unsigned long long)*fileid); 3470409924e4STrond Myklebust return ret; 3471c0eae66eSBenny Halevy out_overflow: 3472c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3473c0eae66eSBenny Halevy return -EIO; 347499baf625SManoj Naik } 347599baf625SManoj Naik 34761da177e4SLinus Torvalds static int decode_attr_files_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34771da177e4SLinus Torvalds { 34788687b63aSAl Viro __be32 *p; 34791da177e4SLinus Torvalds int status = 0; 34801da177e4SLinus Torvalds 34811da177e4SLinus Torvalds *res = 0; 34821da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_AVAIL - 1U))) 34831da177e4SLinus Torvalds return -EIO; 34841da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_AVAIL)) { 3485c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3486c0eae66eSBenny Halevy if (unlikely(!p)) 3487c0eae66eSBenny Halevy goto out_overflow; 3488cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 34891da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_AVAIL; 34901da177e4SLinus Torvalds } 34913110ff80SHarvey Harrison dprintk("%s: files avail=%Lu\n", __func__, (unsigned long long)*res); 34921da177e4SLinus Torvalds return status; 3493c0eae66eSBenny Halevy out_overflow: 3494c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3495c0eae66eSBenny Halevy return -EIO; 34961da177e4SLinus Torvalds } 34971da177e4SLinus Torvalds 34981da177e4SLinus Torvalds static int decode_attr_files_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 34991da177e4SLinus Torvalds { 35008687b63aSAl Viro __be32 *p; 35011da177e4SLinus Torvalds int status = 0; 35021da177e4SLinus Torvalds 35031da177e4SLinus Torvalds *res = 0; 35041da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_FREE - 1U))) 35051da177e4SLinus Torvalds return -EIO; 35061da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_FREE)) { 3507c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3508c0eae66eSBenny Halevy if (unlikely(!p)) 3509c0eae66eSBenny Halevy goto out_overflow; 3510cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35111da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_FREE; 35121da177e4SLinus Torvalds } 35133110ff80SHarvey Harrison dprintk("%s: files free=%Lu\n", __func__, (unsigned long long)*res); 35141da177e4SLinus Torvalds return status; 3515c0eae66eSBenny Halevy out_overflow: 3516c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3517c0eae66eSBenny Halevy return -EIO; 35181da177e4SLinus Torvalds } 35191da177e4SLinus Torvalds 35201da177e4SLinus Torvalds static int decode_attr_files_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 35211da177e4SLinus Torvalds { 35228687b63aSAl Viro __be32 *p; 35231da177e4SLinus Torvalds int status = 0; 35241da177e4SLinus Torvalds 35251da177e4SLinus Torvalds *res = 0; 35261da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_FILES_TOTAL - 1U))) 35271da177e4SLinus Torvalds return -EIO; 35281da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_FILES_TOTAL)) { 3529c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3530c0eae66eSBenny Halevy if (unlikely(!p)) 3531c0eae66eSBenny Halevy goto out_overflow; 3532cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 35331da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_FILES_TOTAL; 35341da177e4SLinus Torvalds } 35353110ff80SHarvey Harrison dprintk("%s: files total=%Lu\n", __func__, (unsigned long long)*res); 35361da177e4SLinus Torvalds return status; 3537c0eae66eSBenny Halevy out_overflow: 3538c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3539c0eae66eSBenny Halevy return -EIO; 35401da177e4SLinus Torvalds } 35411da177e4SLinus Torvalds 35427aaa0b3bSManoj Naik static int decode_pathname(struct xdr_stream *xdr, struct nfs4_pathname *path) 35437aaa0b3bSManoj Naik { 3544464ad6b1SChuck Lever u32 n; 35458687b63aSAl Viro __be32 *p; 35467aaa0b3bSManoj Naik int status = 0; 35477aaa0b3bSManoj Naik 3548c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3549c0eae66eSBenny Halevy if (unlikely(!p)) 3550c0eae66eSBenny Halevy goto out_overflow; 3551cccddf4fSBenny Halevy n = be32_to_cpup(p); 355233a43f28SAndy Adamson if (n == 0) 355333a43f28SAndy Adamson goto root_path; 35547aaa0b3bSManoj Naik dprintk("path "); 35557aaa0b3bSManoj Naik path->ncomponents = 0; 35567aaa0b3bSManoj Naik while (path->ncomponents < n) { 35577aaa0b3bSManoj Naik struct nfs4_string *component = &path->components[path->ncomponents]; 35587aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &component->len, &component->data); 35597aaa0b3bSManoj Naik if (unlikely(status != 0)) 35607aaa0b3bSManoj Naik goto out_eio; 35617aaa0b3bSManoj Naik if (path->ncomponents != n) 35627aaa0b3bSManoj Naik dprintk("/"); 35637aaa0b3bSManoj Naik dprintk("%s", component->data); 35647aaa0b3bSManoj Naik if (path->ncomponents < NFS4_PATHNAME_MAXCOMPONENTS) 35657aaa0b3bSManoj Naik path->ncomponents++; 35667aaa0b3bSManoj Naik else { 35677aaa0b3bSManoj Naik dprintk("cannot parse %d components in path\n", n); 35687aaa0b3bSManoj Naik goto out_eio; 35697aaa0b3bSManoj Naik } 35707aaa0b3bSManoj Naik } 35717aaa0b3bSManoj Naik out: 35727aaa0b3bSManoj Naik dprintk("\n"); 35737aaa0b3bSManoj Naik return status; 357433a43f28SAndy Adamson root_path: 357533a43f28SAndy Adamson /* a root pathname is sent as a zero component4 */ 357633a43f28SAndy Adamson path->ncomponents = 1; 357733a43f28SAndy Adamson path->components[0].len=0; 357833a43f28SAndy Adamson path->components[0].data=NULL; 357933a43f28SAndy Adamson dprintk("path /\n"); 358033a43f28SAndy Adamson goto out; 35817aaa0b3bSManoj Naik out_eio: 35827aaa0b3bSManoj Naik dprintk(" status %d", status); 35837aaa0b3bSManoj Naik status = -EIO; 35847aaa0b3bSManoj Naik goto out; 3585c0eae66eSBenny Halevy out_overflow: 3586c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3587c0eae66eSBenny Halevy return -EIO; 35887aaa0b3bSManoj Naik } 35897aaa0b3bSManoj Naik 35907aaa0b3bSManoj Naik static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, struct nfs4_fs_locations *res) 3591683b57b4STrond Myklebust { 3592683b57b4STrond Myklebust int n; 35938687b63aSAl Viro __be32 *p; 3594683b57b4STrond Myklebust int status = -EIO; 3595683b57b4STrond Myklebust 3596683b57b4STrond Myklebust if (unlikely(bitmap[0] & (FATTR4_WORD0_FS_LOCATIONS -1U))) 3597683b57b4STrond Myklebust goto out; 3598683b57b4STrond Myklebust status = 0; 3599683b57b4STrond Myklebust if (unlikely(!(bitmap[0] & FATTR4_WORD0_FS_LOCATIONS))) 3600683b57b4STrond Myklebust goto out; 36018b7e3f49STrond Myklebust status = -EIO; 36028b7e3f49STrond Myklebust /* Ignore borken servers that return unrequested attrs */ 36038b7e3f49STrond Myklebust if (unlikely(res == NULL)) 36048b7e3f49STrond Myklebust goto out; 36053110ff80SHarvey Harrison dprintk("%s: fsroot ", __func__); 36067aaa0b3bSManoj Naik status = decode_pathname(xdr, &res->fs_path); 3607683b57b4STrond Myklebust if (unlikely(status != 0)) 3608683b57b4STrond Myklebust goto out; 3609c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3610c0eae66eSBenny Halevy if (unlikely(!p)) 3611c0eae66eSBenny Halevy goto out_overflow; 3612cccddf4fSBenny Halevy n = be32_to_cpup(p); 3613683b57b4STrond Myklebust if (n <= 0) 3614683b57b4STrond Myklebust goto out_eio; 3615683b57b4STrond Myklebust res->nlocations = 0; 3616683b57b4STrond Myklebust while (res->nlocations < n) { 3617464ad6b1SChuck Lever u32 m; 36187aaa0b3bSManoj Naik struct nfs4_fs_location *loc = &res->locations[res->nlocations]; 3619683b57b4STrond Myklebust 3620c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3621c0eae66eSBenny Halevy if (unlikely(!p)) 3622c0eae66eSBenny Halevy goto out_overflow; 3623cccddf4fSBenny Halevy m = be32_to_cpup(p); 36247aaa0b3bSManoj Naik 36257aaa0b3bSManoj Naik loc->nservers = 0; 36263110ff80SHarvey Harrison dprintk("%s: servers ", __func__); 36277aaa0b3bSManoj Naik while (loc->nservers < m) { 36287aaa0b3bSManoj Naik struct nfs4_string *server = &loc->servers[loc->nservers]; 36297aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &server->len, &server->data); 3630683b57b4STrond Myklebust if (unlikely(status != 0)) 3631683b57b4STrond Myklebust goto out_eio; 36327aaa0b3bSManoj Naik dprintk("%s ", server->data); 36337aaa0b3bSManoj Naik if (loc->nservers < NFS4_FS_LOCATION_MAXSERVERS) 36347aaa0b3bSManoj Naik loc->nservers++; 36357aaa0b3bSManoj Naik else { 3636464ad6b1SChuck Lever unsigned int i; 3637464ad6b1SChuck Lever dprintk("%s: using first %u of %u servers " 3638464ad6b1SChuck Lever "returned for location %u\n", 36393110ff80SHarvey Harrison __func__, 3640464ad6b1SChuck Lever NFS4_FS_LOCATION_MAXSERVERS, 3641464ad6b1SChuck Lever m, res->nlocations); 36427aaa0b3bSManoj Naik for (i = loc->nservers; i < m; i++) { 36432e42c3e2STrond Myklebust unsigned int len; 36447aaa0b3bSManoj Naik char *data; 36457aaa0b3bSManoj Naik status = decode_opaque_inline(xdr, &len, &data); 3646683b57b4STrond Myklebust if (unlikely(status != 0)) 3647683b57b4STrond Myklebust goto out_eio; 36487aaa0b3bSManoj Naik } 36497aaa0b3bSManoj Naik } 36507aaa0b3bSManoj Naik } 36517aaa0b3bSManoj Naik status = decode_pathname(xdr, &loc->rootpath); 36527aaa0b3bSManoj Naik if (unlikely(status != 0)) 36537aaa0b3bSManoj Naik goto out_eio; 36547aaa0b3bSManoj Naik if (res->nlocations < NFS4_FS_LOCATIONS_MAXENTRIES) 3655683b57b4STrond Myklebust res->nlocations++; 3656683b57b4STrond Myklebust } 3657409924e4STrond Myklebust if (res->nlocations != 0) 3658409924e4STrond Myklebust status = NFS_ATTR_FATTR_V4_REFERRAL; 3659683b57b4STrond Myklebust out: 36603110ff80SHarvey Harrison dprintk("%s: fs_locations done, error = %d\n", __func__, status); 3661683b57b4STrond Myklebust return status; 3662c0eae66eSBenny Halevy out_overflow: 3663c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3664683b57b4STrond Myklebust out_eio: 3665683b57b4STrond Myklebust status = -EIO; 3666683b57b4STrond Myklebust goto out; 3667683b57b4STrond Myklebust } 3668683b57b4STrond Myklebust 36691da177e4SLinus Torvalds static int decode_attr_maxfilesize(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 36701da177e4SLinus Torvalds { 36718687b63aSAl Viro __be32 *p; 36721da177e4SLinus Torvalds int status = 0; 36731da177e4SLinus Torvalds 36741da177e4SLinus Torvalds *res = 0; 36751da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXFILESIZE - 1U))) 36761da177e4SLinus Torvalds return -EIO; 36771da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXFILESIZE)) { 3678c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3679c0eae66eSBenny Halevy if (unlikely(!p)) 3680c0eae66eSBenny Halevy goto out_overflow; 3681cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 36821da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXFILESIZE; 36831da177e4SLinus Torvalds } 36843110ff80SHarvey Harrison dprintk("%s: maxfilesize=%Lu\n", __func__, (unsigned long long)*res); 36851da177e4SLinus Torvalds return status; 3686c0eae66eSBenny Halevy out_overflow: 3687c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3688c0eae66eSBenny Halevy return -EIO; 36891da177e4SLinus Torvalds } 36901da177e4SLinus Torvalds 36911da177e4SLinus Torvalds static int decode_attr_maxlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxlink) 36921da177e4SLinus Torvalds { 36938687b63aSAl Viro __be32 *p; 36941da177e4SLinus Torvalds int status = 0; 36951da177e4SLinus Torvalds 36961da177e4SLinus Torvalds *maxlink = 1; 36971da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXLINK - 1U))) 36981da177e4SLinus Torvalds return -EIO; 36991da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXLINK)) { 3700c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3701c0eae66eSBenny Halevy if (unlikely(!p)) 3702c0eae66eSBenny Halevy goto out_overflow; 3703cccddf4fSBenny Halevy *maxlink = be32_to_cpup(p); 37041da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXLINK; 37051da177e4SLinus Torvalds } 37063110ff80SHarvey Harrison dprintk("%s: maxlink=%u\n", __func__, *maxlink); 37071da177e4SLinus Torvalds return status; 3708c0eae66eSBenny Halevy out_overflow: 3709c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3710c0eae66eSBenny Halevy return -EIO; 37111da177e4SLinus Torvalds } 37121da177e4SLinus Torvalds 37131da177e4SLinus Torvalds static int decode_attr_maxname(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *maxname) 37141da177e4SLinus Torvalds { 37158687b63aSAl Viro __be32 *p; 37161da177e4SLinus Torvalds int status = 0; 37171da177e4SLinus Torvalds 37181da177e4SLinus Torvalds *maxname = 1024; 37191da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXNAME - 1U))) 37201da177e4SLinus Torvalds return -EIO; 37211da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXNAME)) { 3722c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3723c0eae66eSBenny Halevy if (unlikely(!p)) 3724c0eae66eSBenny Halevy goto out_overflow; 3725cccddf4fSBenny Halevy *maxname = be32_to_cpup(p); 37261da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXNAME; 37271da177e4SLinus Torvalds } 37283110ff80SHarvey Harrison dprintk("%s: maxname=%u\n", __func__, *maxname); 37291da177e4SLinus Torvalds return status; 3730c0eae66eSBenny Halevy out_overflow: 3731c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3732c0eae66eSBenny Halevy return -EIO; 37331da177e4SLinus Torvalds } 37341da177e4SLinus Torvalds 37351da177e4SLinus Torvalds static int decode_attr_maxread(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37361da177e4SLinus Torvalds { 37378687b63aSAl Viro __be32 *p; 37381da177e4SLinus Torvalds int status = 0; 37391da177e4SLinus Torvalds 37401da177e4SLinus Torvalds *res = 1024; 37411da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXREAD - 1U))) 37421da177e4SLinus Torvalds return -EIO; 37431da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXREAD)) { 37441da177e4SLinus Torvalds uint64_t maxread; 3745c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3746c0eae66eSBenny Halevy if (unlikely(!p)) 3747c0eae66eSBenny Halevy goto out_overflow; 3748cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxread); 37491da177e4SLinus Torvalds if (maxread > 0x7FFFFFFF) 37501da177e4SLinus Torvalds maxread = 0x7FFFFFFF; 37511da177e4SLinus Torvalds *res = (uint32_t)maxread; 37521da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXREAD; 37531da177e4SLinus Torvalds } 37543110ff80SHarvey Harrison dprintk("%s: maxread=%lu\n", __func__, (unsigned long)*res); 37551da177e4SLinus Torvalds return status; 3756c0eae66eSBenny Halevy out_overflow: 3757c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3758c0eae66eSBenny Halevy return -EIO; 37591da177e4SLinus Torvalds } 37601da177e4SLinus Torvalds 37611da177e4SLinus Torvalds static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *res) 37621da177e4SLinus Torvalds { 37638687b63aSAl Viro __be32 *p; 37641da177e4SLinus Torvalds int status = 0; 37651da177e4SLinus Torvalds 37661da177e4SLinus Torvalds *res = 1024; 37671da177e4SLinus Torvalds if (unlikely(bitmap[0] & (FATTR4_WORD0_MAXWRITE - 1U))) 37681da177e4SLinus Torvalds return -EIO; 37691da177e4SLinus Torvalds if (likely(bitmap[0] & FATTR4_WORD0_MAXWRITE)) { 37701da177e4SLinus Torvalds uint64_t maxwrite; 3771c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3772c0eae66eSBenny Halevy if (unlikely(!p)) 3773c0eae66eSBenny Halevy goto out_overflow; 3774cccddf4fSBenny Halevy xdr_decode_hyper(p, &maxwrite); 37751da177e4SLinus Torvalds if (maxwrite > 0x7FFFFFFF) 37761da177e4SLinus Torvalds maxwrite = 0x7FFFFFFF; 37771da177e4SLinus Torvalds *res = (uint32_t)maxwrite; 37781da177e4SLinus Torvalds bitmap[0] &= ~FATTR4_WORD0_MAXWRITE; 37791da177e4SLinus Torvalds } 37803110ff80SHarvey Harrison dprintk("%s: maxwrite=%lu\n", __func__, (unsigned long)*res); 37811da177e4SLinus Torvalds return status; 3782c0eae66eSBenny Halevy out_overflow: 3783c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3784c0eae66eSBenny Halevy return -EIO; 37851da177e4SLinus Torvalds } 37861da177e4SLinus Torvalds 3787bca79478STrond Myklebust static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode) 37881da177e4SLinus Torvalds { 3789bca79478STrond Myklebust uint32_t tmp; 37908687b63aSAl Viro __be32 *p; 3791409924e4STrond Myklebust int ret = 0; 37921da177e4SLinus Torvalds 37931da177e4SLinus Torvalds *mode = 0; 37941da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_MODE - 1U))) 37951da177e4SLinus Torvalds return -EIO; 37961da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_MODE)) { 3797c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3798c0eae66eSBenny Halevy if (unlikely(!p)) 3799c0eae66eSBenny Halevy goto out_overflow; 3800cccddf4fSBenny Halevy tmp = be32_to_cpup(p); 3801bca79478STrond Myklebust *mode = tmp & ~S_IFMT; 38021da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_MODE; 3803409924e4STrond Myklebust ret = NFS_ATTR_FATTR_MODE; 38041da177e4SLinus Torvalds } 38053110ff80SHarvey Harrison dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode); 3806409924e4STrond Myklebust return ret; 3807c0eae66eSBenny Halevy out_overflow: 3808c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3809c0eae66eSBenny Halevy return -EIO; 38101da177e4SLinus Torvalds } 38111da177e4SLinus Torvalds 38121da177e4SLinus Torvalds static int decode_attr_nlink(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *nlink) 38131da177e4SLinus Torvalds { 38148687b63aSAl Viro __be32 *p; 3815409924e4STrond Myklebust int ret = 0; 38161da177e4SLinus Torvalds 38171da177e4SLinus Torvalds *nlink = 1; 38181da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_NUMLINKS - 1U))) 38191da177e4SLinus Torvalds return -EIO; 38201da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_NUMLINKS)) { 3821c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3822c0eae66eSBenny Halevy if (unlikely(!p)) 3823c0eae66eSBenny Halevy goto out_overflow; 3824cccddf4fSBenny Halevy *nlink = be32_to_cpup(p); 38251da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_NUMLINKS; 3826409924e4STrond Myklebust ret = NFS_ATTR_FATTR_NLINK; 38271da177e4SLinus Torvalds } 38283110ff80SHarvey Harrison dprintk("%s: nlink=%u\n", __func__, (unsigned int)*nlink); 3829409924e4STrond Myklebust return ret; 3830c0eae66eSBenny Halevy out_overflow: 3831c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3832c0eae66eSBenny Halevy return -EIO; 38331da177e4SLinus Torvalds } 38341da177e4SLinus Torvalds 383580e52aceSTrond Myklebust static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap, 38366926afd1STrond Myklebust const struct nfs_server *server, uint32_t *uid, 38376926afd1STrond Myklebust struct nfs4_string *owner_name) 38381da177e4SLinus Torvalds { 38398687b63aSAl Viro uint32_t len; 38408687b63aSAl Viro __be32 *p; 3841409924e4STrond Myklebust int ret = 0; 38421da177e4SLinus Torvalds 38431da177e4SLinus Torvalds *uid = -2; 38441da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER - 1U))) 38451da177e4SLinus Torvalds return -EIO; 38461da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER)) { 3847c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3848c0eae66eSBenny Halevy if (unlikely(!p)) 3849c0eae66eSBenny Halevy goto out_overflow; 3850cccddf4fSBenny Halevy len = be32_to_cpup(p); 3851c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3852c0eae66eSBenny Halevy if (unlikely(!p)) 3853c0eae66eSBenny Halevy goto out_overflow; 38546926afd1STrond Myklebust if (owner_name != NULL) { 38556926afd1STrond Myklebust owner_name->data = kmemdup(p, len, GFP_NOWAIT); 38566926afd1STrond Myklebust if (owner_name->data != NULL) { 38576926afd1STrond Myklebust owner_name->len = len; 38586926afd1STrond Myklebust ret = NFS_ATTR_FATTR_OWNER_NAME; 38596926afd1STrond Myklebust } 386080e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3861e4fd72a1STrond Myklebust if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0) 3862409924e4STrond Myklebust ret = NFS_ATTR_FATTR_OWNER; 3863409924e4STrond Myklebust else 38641da177e4SLinus Torvalds dprintk("%s: nfs_map_name_to_uid failed!\n", 38653110ff80SHarvey Harrison __func__); 38661da177e4SLinus Torvalds } else 3867fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 38683110ff80SHarvey Harrison __func__, len); 38691da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER; 38701da177e4SLinus Torvalds } 38713110ff80SHarvey Harrison dprintk("%s: uid=%d\n", __func__, (int)*uid); 3872409924e4STrond Myklebust return ret; 3873c0eae66eSBenny Halevy out_overflow: 3874c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3875c0eae66eSBenny Halevy return -EIO; 38761da177e4SLinus Torvalds } 38771da177e4SLinus Torvalds 387880e52aceSTrond Myklebust static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap, 38796926afd1STrond Myklebust const struct nfs_server *server, uint32_t *gid, 38806926afd1STrond Myklebust struct nfs4_string *group_name) 38811da177e4SLinus Torvalds { 38828687b63aSAl Viro uint32_t len; 38838687b63aSAl Viro __be32 *p; 3884409924e4STrond Myklebust int ret = 0; 38851da177e4SLinus Torvalds 38861da177e4SLinus Torvalds *gid = -2; 38871da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_OWNER_GROUP - 1U))) 38881da177e4SLinus Torvalds return -EIO; 38891da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_OWNER_GROUP)) { 3890c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 3891c0eae66eSBenny Halevy if (unlikely(!p)) 3892c0eae66eSBenny Halevy goto out_overflow; 3893cccddf4fSBenny Halevy len = be32_to_cpup(p); 3894c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 3895c0eae66eSBenny Halevy if (unlikely(!p)) 3896c0eae66eSBenny Halevy goto out_overflow; 38976926afd1STrond Myklebust if (group_name != NULL) { 38986926afd1STrond Myklebust group_name->data = kmemdup(p, len, GFP_NOWAIT); 38996926afd1STrond Myklebust if (group_name->data != NULL) { 39006926afd1STrond Myklebust group_name->len = len; 39016926afd1STrond Myklebust ret = NFS_ATTR_FATTR_GROUP_NAME; 39026926afd1STrond Myklebust } 390380e52aceSTrond Myklebust } else if (len < XDR_MAX_NETOBJ) { 3904e4fd72a1STrond Myklebust if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0) 3905409924e4STrond Myklebust ret = NFS_ATTR_FATTR_GROUP; 3906409924e4STrond Myklebust else 39071da177e4SLinus Torvalds dprintk("%s: nfs_map_group_to_gid failed!\n", 39083110ff80SHarvey Harrison __func__); 39091da177e4SLinus Torvalds } else 3910fe82a183SChuck Lever dprintk("%s: name too long (%u)!\n", 39113110ff80SHarvey Harrison __func__, len); 39121da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_OWNER_GROUP; 39131da177e4SLinus Torvalds } 39143110ff80SHarvey Harrison dprintk("%s: gid=%d\n", __func__, (int)*gid); 3915409924e4STrond Myklebust return ret; 3916c0eae66eSBenny Halevy out_overflow: 3917c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3918c0eae66eSBenny Halevy return -EIO; 39191da177e4SLinus Torvalds } 39201da177e4SLinus Torvalds 39211da177e4SLinus Torvalds static int decode_attr_rdev(struct xdr_stream *xdr, uint32_t *bitmap, dev_t *rdev) 39221da177e4SLinus Torvalds { 39238687b63aSAl Viro uint32_t major = 0, minor = 0; 39248687b63aSAl Viro __be32 *p; 3925409924e4STrond Myklebust int ret = 0; 39261da177e4SLinus Torvalds 39271da177e4SLinus Torvalds *rdev = MKDEV(0,0); 39281da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_RAWDEV - 1U))) 39291da177e4SLinus Torvalds return -EIO; 39301da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_RAWDEV)) { 39311da177e4SLinus Torvalds dev_t tmp; 39321da177e4SLinus Torvalds 3933c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3934c0eae66eSBenny Halevy if (unlikely(!p)) 3935c0eae66eSBenny Halevy goto out_overflow; 39366f723f77SBenny Halevy major = be32_to_cpup(p++); 3937cccddf4fSBenny Halevy minor = be32_to_cpup(p); 39381da177e4SLinus Torvalds tmp = MKDEV(major, minor); 39391da177e4SLinus Torvalds if (MAJOR(tmp) == major && MINOR(tmp) == minor) 39401da177e4SLinus Torvalds *rdev = tmp; 39411da177e4SLinus Torvalds bitmap[1] &= ~ FATTR4_WORD1_RAWDEV; 3942409924e4STrond Myklebust ret = NFS_ATTR_FATTR_RDEV; 39431da177e4SLinus Torvalds } 39443110ff80SHarvey Harrison dprintk("%s: rdev=(0x%x:0x%x)\n", __func__, major, minor); 3945409924e4STrond Myklebust return ret; 3946c0eae66eSBenny Halevy out_overflow: 3947c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3948c0eae66eSBenny Halevy return -EIO; 39491da177e4SLinus Torvalds } 39501da177e4SLinus Torvalds 39511da177e4SLinus Torvalds static int decode_attr_space_avail(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39521da177e4SLinus Torvalds { 39538687b63aSAl Viro __be32 *p; 39541da177e4SLinus Torvalds int status = 0; 39551da177e4SLinus Torvalds 39561da177e4SLinus Torvalds *res = 0; 39571da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_AVAIL - 1U))) 39581da177e4SLinus Torvalds return -EIO; 39591da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_AVAIL)) { 3960c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3961c0eae66eSBenny Halevy if (unlikely(!p)) 3962c0eae66eSBenny Halevy goto out_overflow; 3963cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39641da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_AVAIL; 39651da177e4SLinus Torvalds } 39663110ff80SHarvey Harrison dprintk("%s: space avail=%Lu\n", __func__, (unsigned long long)*res); 39671da177e4SLinus Torvalds return status; 3968c0eae66eSBenny Halevy out_overflow: 3969c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3970c0eae66eSBenny Halevy return -EIO; 39711da177e4SLinus Torvalds } 39721da177e4SLinus Torvalds 39731da177e4SLinus Torvalds static int decode_attr_space_free(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39741da177e4SLinus Torvalds { 39758687b63aSAl Viro __be32 *p; 39761da177e4SLinus Torvalds int status = 0; 39771da177e4SLinus Torvalds 39781da177e4SLinus Torvalds *res = 0; 39791da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_FREE - 1U))) 39801da177e4SLinus Torvalds return -EIO; 39811da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_FREE)) { 3982c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 3983c0eae66eSBenny Halevy if (unlikely(!p)) 3984c0eae66eSBenny Halevy goto out_overflow; 3985cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 39861da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_FREE; 39871da177e4SLinus Torvalds } 39883110ff80SHarvey Harrison dprintk("%s: space free=%Lu\n", __func__, (unsigned long long)*res); 39891da177e4SLinus Torvalds return status; 3990c0eae66eSBenny Halevy out_overflow: 3991c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 3992c0eae66eSBenny Halevy return -EIO; 39931da177e4SLinus Torvalds } 39941da177e4SLinus Torvalds 39951da177e4SLinus Torvalds static int decode_attr_space_total(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *res) 39961da177e4SLinus Torvalds { 39978687b63aSAl Viro __be32 *p; 39981da177e4SLinus Torvalds int status = 0; 39991da177e4SLinus Torvalds 40001da177e4SLinus Torvalds *res = 0; 40011da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_TOTAL - 1U))) 40021da177e4SLinus Torvalds return -EIO; 40031da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_TOTAL)) { 4004c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4005c0eae66eSBenny Halevy if (unlikely(!p)) 4006c0eae66eSBenny Halevy goto out_overflow; 4007cccddf4fSBenny Halevy xdr_decode_hyper(p, res); 40081da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_TOTAL; 40091da177e4SLinus Torvalds } 40103110ff80SHarvey Harrison dprintk("%s: space total=%Lu\n", __func__, (unsigned long long)*res); 40111da177e4SLinus Torvalds return status; 4012c0eae66eSBenny Halevy out_overflow: 4013c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4014c0eae66eSBenny Halevy return -EIO; 40151da177e4SLinus Torvalds } 40161da177e4SLinus Torvalds 40171da177e4SLinus Torvalds static int decode_attr_space_used(struct xdr_stream *xdr, uint32_t *bitmap, uint64_t *used) 40181da177e4SLinus Torvalds { 40198687b63aSAl Viro __be32 *p; 4020409924e4STrond Myklebust int ret = 0; 40211da177e4SLinus Torvalds 40221da177e4SLinus Torvalds *used = 0; 40231da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_SPACE_USED - 1U))) 40241da177e4SLinus Torvalds return -EIO; 40251da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_SPACE_USED)) { 4026c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4027c0eae66eSBenny Halevy if (unlikely(!p)) 4028c0eae66eSBenny Halevy goto out_overflow; 4029cccddf4fSBenny Halevy xdr_decode_hyper(p, used); 40301da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_SPACE_USED; 4031409924e4STrond Myklebust ret = NFS_ATTR_FATTR_SPACE_USED; 40321da177e4SLinus Torvalds } 40333110ff80SHarvey Harrison dprintk("%s: space used=%Lu\n", __func__, 40341da177e4SLinus Torvalds (unsigned long long)*used); 4035409924e4STrond Myklebust return ret; 4036c0eae66eSBenny Halevy out_overflow: 4037c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4038c0eae66eSBenny Halevy return -EIO; 40391da177e4SLinus Torvalds } 40401da177e4SLinus Torvalds 40411da177e4SLinus Torvalds static int decode_attr_time(struct xdr_stream *xdr, struct timespec *time) 40421da177e4SLinus Torvalds { 40438687b63aSAl Viro __be32 *p; 40441da177e4SLinus Torvalds uint64_t sec; 40451da177e4SLinus Torvalds uint32_t nsec; 40461da177e4SLinus Torvalds 4047c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4048c0eae66eSBenny Halevy if (unlikely(!p)) 4049c0eae66eSBenny Halevy goto out_overflow; 40503ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &sec); 4051cccddf4fSBenny Halevy nsec = be32_to_cpup(p); 40521da177e4SLinus Torvalds time->tv_sec = (time_t)sec; 40531da177e4SLinus Torvalds time->tv_nsec = (long)nsec; 40541da177e4SLinus Torvalds return 0; 4055c0eae66eSBenny Halevy out_overflow: 4056c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4057c0eae66eSBenny Halevy return -EIO; 40581da177e4SLinus Torvalds } 40591da177e4SLinus Torvalds 40601da177e4SLinus Torvalds static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40611da177e4SLinus Torvalds { 40621da177e4SLinus Torvalds int status = 0; 40631da177e4SLinus Torvalds 40641da177e4SLinus Torvalds time->tv_sec = 0; 40651da177e4SLinus Torvalds time->tv_nsec = 0; 40661da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_ACCESS - 1U))) 40671da177e4SLinus Torvalds return -EIO; 40681da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_ACCESS)) { 40691da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4070409924e4STrond Myklebust if (status == 0) 4071409924e4STrond Myklebust status = NFS_ATTR_FATTR_ATIME; 40721da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS; 40731da177e4SLinus Torvalds } 40743110ff80SHarvey Harrison dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec); 40751da177e4SLinus Torvalds return status; 40761da177e4SLinus Torvalds } 40771da177e4SLinus Torvalds 40781da177e4SLinus Torvalds static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 40791da177e4SLinus Torvalds { 40801da177e4SLinus Torvalds int status = 0; 40811da177e4SLinus Torvalds 40821da177e4SLinus Torvalds time->tv_sec = 0; 40831da177e4SLinus Torvalds time->tv_nsec = 0; 40841da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_METADATA - 1U))) 40851da177e4SLinus Torvalds return -EIO; 40861da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_METADATA)) { 40871da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4088409924e4STrond Myklebust if (status == 0) 4089409924e4STrond Myklebust status = NFS_ATTR_FATTR_CTIME; 40901da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA; 40911da177e4SLinus Torvalds } 40923110ff80SHarvey Harrison dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec); 40931da177e4SLinus Torvalds return status; 40941da177e4SLinus Torvalds } 40951da177e4SLinus Torvalds 409655b6e774SRicardo Labiaga static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap, 409755b6e774SRicardo Labiaga struct timespec *time) 409855b6e774SRicardo Labiaga { 409955b6e774SRicardo Labiaga int status = 0; 410055b6e774SRicardo Labiaga 410155b6e774SRicardo Labiaga time->tv_sec = 0; 410255b6e774SRicardo Labiaga time->tv_nsec = 0; 410355b6e774SRicardo Labiaga if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_DELTA - 1U))) 410455b6e774SRicardo Labiaga return -EIO; 410555b6e774SRicardo Labiaga if (likely(bitmap[1] & FATTR4_WORD1_TIME_DELTA)) { 410655b6e774SRicardo Labiaga status = decode_attr_time(xdr, time); 410755b6e774SRicardo Labiaga bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA; 410855b6e774SRicardo Labiaga } 410955b6e774SRicardo Labiaga dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec, 411055b6e774SRicardo Labiaga (long)time->tv_nsec); 411155b6e774SRicardo Labiaga return status; 411255b6e774SRicardo Labiaga } 411355b6e774SRicardo Labiaga 41141da177e4SLinus Torvalds static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, struct timespec *time) 41151da177e4SLinus Torvalds { 41161da177e4SLinus Torvalds int status = 0; 41171da177e4SLinus Torvalds 41181da177e4SLinus Torvalds time->tv_sec = 0; 41191da177e4SLinus Torvalds time->tv_nsec = 0; 41201da177e4SLinus Torvalds if (unlikely(bitmap[1] & (FATTR4_WORD1_TIME_MODIFY - 1U))) 41211da177e4SLinus Torvalds return -EIO; 41221da177e4SLinus Torvalds if (likely(bitmap[1] & FATTR4_WORD1_TIME_MODIFY)) { 41231da177e4SLinus Torvalds status = decode_attr_time(xdr, time); 4124409924e4STrond Myklebust if (status == 0) 4125409924e4STrond Myklebust status = NFS_ATTR_FATTR_MTIME; 41261da177e4SLinus Torvalds bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY; 41271da177e4SLinus Torvalds } 41283110ff80SHarvey Harrison dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec); 41291da177e4SLinus Torvalds return status; 41301da177e4SLinus Torvalds } 41311da177e4SLinus Torvalds 41328687b63aSAl Viro static int verify_attr_len(struct xdr_stream *xdr, __be32 *savep, uint32_t attrlen) 41331da177e4SLinus Torvalds { 41341da177e4SLinus Torvalds unsigned int attrwords = XDR_QUADLEN(attrlen); 41351da177e4SLinus Torvalds unsigned int nwords = xdr->p - savep; 41361da177e4SLinus Torvalds 41371da177e4SLinus Torvalds if (unlikely(attrwords != nwords)) { 4138fe82a183SChuck Lever dprintk("%s: server returned incorrect attribute length: " 4139fe82a183SChuck Lever "%u %c %u\n", 41403110ff80SHarvey Harrison __func__, 41411da177e4SLinus Torvalds attrwords << 2, 41421da177e4SLinus Torvalds (attrwords < nwords) ? '<' : '>', 41431da177e4SLinus Torvalds nwords << 2); 41441da177e4SLinus Torvalds return -EIO; 41451da177e4SLinus Torvalds } 41461da177e4SLinus Torvalds return 0; 41471da177e4SLinus Torvalds } 41481da177e4SLinus Torvalds 41491da177e4SLinus Torvalds static int decode_change_info(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 41501da177e4SLinus Torvalds { 41518687b63aSAl Viro __be32 *p; 41521da177e4SLinus Torvalds 4153c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 4154c0eae66eSBenny Halevy if (unlikely(!p)) 4155c0eae66eSBenny Halevy goto out_overflow; 41566f723f77SBenny Halevy cinfo->atomic = be32_to_cpup(p++); 41573ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &cinfo->before); 4158cccddf4fSBenny Halevy xdr_decode_hyper(p, &cinfo->after); 41591da177e4SLinus Torvalds return 0; 4160c0eae66eSBenny Halevy out_overflow: 4161c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4162c0eae66eSBenny Halevy return -EIO; 41631da177e4SLinus Torvalds } 41641da177e4SLinus Torvalds 41651da177e4SLinus Torvalds static int decode_access(struct xdr_stream *xdr, struct nfs4_accessres *access) 41661da177e4SLinus Torvalds { 41678687b63aSAl Viro __be32 *p; 41681da177e4SLinus Torvalds uint32_t supp, acc; 41691da177e4SLinus Torvalds int status; 41701da177e4SLinus Torvalds 41711da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_ACCESS); 41721da177e4SLinus Torvalds if (status) 41731da177e4SLinus Torvalds return status; 4174c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4175c0eae66eSBenny Halevy if (unlikely(!p)) 4176c0eae66eSBenny Halevy goto out_overflow; 41776f723f77SBenny Halevy supp = be32_to_cpup(p++); 4178cccddf4fSBenny Halevy acc = be32_to_cpup(p); 41791da177e4SLinus Torvalds access->supported = supp; 41801da177e4SLinus Torvalds access->access = acc; 41811da177e4SLinus Torvalds return 0; 4182c0eae66eSBenny Halevy out_overflow: 4183c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4184c0eae66eSBenny Halevy return -EIO; 41851da177e4SLinus Torvalds } 41861da177e4SLinus Torvalds 418707d30434SBenny Halevy static int decode_opaque_fixed(struct xdr_stream *xdr, void *buf, size_t len) 41881da177e4SLinus Torvalds { 41898687b63aSAl Viro __be32 *p; 419007d30434SBenny Halevy 419107d30434SBenny Halevy p = xdr_inline_decode(xdr, len); 419207d30434SBenny Halevy if (likely(p)) { 419307d30434SBenny Halevy memcpy(buf, p, len); 419407d30434SBenny Halevy return 0; 419507d30434SBenny Halevy } 419607d30434SBenny Halevy print_overflow_msg(__func__, xdr); 419707d30434SBenny Halevy return -EIO; 419807d30434SBenny Halevy } 419907d30434SBenny Halevy 420007d30434SBenny Halevy static int decode_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid) 420107d30434SBenny Halevy { 420207d30434SBenny Halevy return decode_opaque_fixed(xdr, stateid->data, NFS4_STATEID_SIZE); 42031da177e4SLinus Torvalds } 42041da177e4SLinus Torvalds 42051da177e4SLinus Torvalds static int decode_close(struct xdr_stream *xdr, struct nfs_closeres *res) 42061da177e4SLinus Torvalds { 42071da177e4SLinus Torvalds int status; 42081da177e4SLinus Torvalds 42091da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CLOSE); 4210c1d51931STrond Myklebust if (status != -EIO) 4211c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 421207d30434SBenny Halevy if (!status) 421307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 42141da177e4SLinus Torvalds return status; 42151da177e4SLinus Torvalds } 42161da177e4SLinus Torvalds 4217db942bbdSBenny Halevy static int decode_verifier(struct xdr_stream *xdr, void *verifier) 4218db942bbdSBenny Halevy { 4219db942bbdSBenny Halevy return decode_opaque_fixed(xdr, verifier, 8); 42201da177e4SLinus Torvalds } 42211da177e4SLinus Torvalds 42221da177e4SLinus Torvalds static int decode_commit(struct xdr_stream *xdr, struct nfs_writeres *res) 42231da177e4SLinus Torvalds { 42241da177e4SLinus Torvalds int status; 42251da177e4SLinus Torvalds 42261da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_COMMIT); 4227db942bbdSBenny Halevy if (!status) 4228db942bbdSBenny Halevy status = decode_verifier(xdr, res->verf->verifier); 42291da177e4SLinus Torvalds return status; 42301da177e4SLinus Torvalds } 42311da177e4SLinus Torvalds 42321da177e4SLinus Torvalds static int decode_create(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 42331da177e4SLinus Torvalds { 42348687b63aSAl Viro __be32 *p; 42351da177e4SLinus Torvalds uint32_t bmlen; 42361da177e4SLinus Torvalds int status; 42371da177e4SLinus Torvalds 42381da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_CREATE); 42391da177e4SLinus Torvalds if (status) 42401da177e4SLinus Torvalds return status; 42411da177e4SLinus Torvalds if ((status = decode_change_info(xdr, cinfo))) 42421da177e4SLinus Torvalds return status; 4243c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4244c0eae66eSBenny Halevy if (unlikely(!p)) 4245c0eae66eSBenny Halevy goto out_overflow; 4246cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 4247c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4248c0eae66eSBenny Halevy if (likely(p)) 42491da177e4SLinus Torvalds return 0; 4250c0eae66eSBenny Halevy out_overflow: 4251c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4252c0eae66eSBenny Halevy return -EIO; 42531da177e4SLinus Torvalds } 42541da177e4SLinus Torvalds 42551da177e4SLinus Torvalds static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res) 42561da177e4SLinus Torvalds { 42578687b63aSAl Viro __be32 *savep; 4258dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42591da177e4SLinus Torvalds int status; 42601da177e4SLinus Torvalds 42611da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42621da177e4SLinus Torvalds goto xdr_error; 42631da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42641da177e4SLinus Torvalds goto xdr_error; 42651da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42661da177e4SLinus Torvalds goto xdr_error; 42671da177e4SLinus Torvalds if ((status = decode_attr_supported(xdr, bitmap, res->attr_bitmask)) != 0) 42681da177e4SLinus Torvalds goto xdr_error; 42691da177e4SLinus Torvalds if ((status = decode_attr_link_support(xdr, bitmap, &res->has_links)) != 0) 42701da177e4SLinus Torvalds goto xdr_error; 42711da177e4SLinus Torvalds if ((status = decode_attr_symlink_support(xdr, bitmap, &res->has_symlinks)) != 0) 42721da177e4SLinus Torvalds goto xdr_error; 42731da177e4SLinus Torvalds if ((status = decode_attr_aclsupport(xdr, bitmap, &res->acl_bitmask)) != 0) 42741da177e4SLinus Torvalds goto xdr_error; 42751da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 42761da177e4SLinus Torvalds xdr_error: 42773110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 42781da177e4SLinus Torvalds return status; 42791da177e4SLinus Torvalds } 42801da177e4SLinus Torvalds 42811da177e4SLinus Torvalds static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat) 42821da177e4SLinus Torvalds { 42838687b63aSAl Viro __be32 *savep; 4284dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 42851da177e4SLinus Torvalds int status; 42861da177e4SLinus Torvalds 42871da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 42881da177e4SLinus Torvalds goto xdr_error; 42891da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 42901da177e4SLinus Torvalds goto xdr_error; 42911da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 42921da177e4SLinus Torvalds goto xdr_error; 42931da177e4SLinus Torvalds 42941da177e4SLinus Torvalds if ((status = decode_attr_files_avail(xdr, bitmap, &fsstat->afiles)) != 0) 42951da177e4SLinus Torvalds goto xdr_error; 42961da177e4SLinus Torvalds if ((status = decode_attr_files_free(xdr, bitmap, &fsstat->ffiles)) != 0) 42971da177e4SLinus Torvalds goto xdr_error; 42981da177e4SLinus Torvalds if ((status = decode_attr_files_total(xdr, bitmap, &fsstat->tfiles)) != 0) 42991da177e4SLinus Torvalds goto xdr_error; 43001da177e4SLinus Torvalds if ((status = decode_attr_space_avail(xdr, bitmap, &fsstat->abytes)) != 0) 43011da177e4SLinus Torvalds goto xdr_error; 43021da177e4SLinus Torvalds if ((status = decode_attr_space_free(xdr, bitmap, &fsstat->fbytes)) != 0) 43031da177e4SLinus Torvalds goto xdr_error; 43041da177e4SLinus Torvalds if ((status = decode_attr_space_total(xdr, bitmap, &fsstat->tbytes)) != 0) 43051da177e4SLinus Torvalds goto xdr_error; 43061da177e4SLinus Torvalds 43071da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43081da177e4SLinus Torvalds xdr_error: 43093110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43101da177e4SLinus Torvalds return status; 43111da177e4SLinus Torvalds } 43121da177e4SLinus Torvalds 43131da177e4SLinus Torvalds static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf) 43141da177e4SLinus Torvalds { 43158687b63aSAl Viro __be32 *savep; 4316dae100c2SFred Isaman uint32_t attrlen, bitmap[3] = {0}; 43171da177e4SLinus Torvalds int status; 43181da177e4SLinus Torvalds 43191da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 43201da177e4SLinus Torvalds goto xdr_error; 43211da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 43221da177e4SLinus Torvalds goto xdr_error; 43231da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 43241da177e4SLinus Torvalds goto xdr_error; 43251da177e4SLinus Torvalds 43261da177e4SLinus Torvalds if ((status = decode_attr_maxlink(xdr, bitmap, &pathconf->max_link)) != 0) 43271da177e4SLinus Torvalds goto xdr_error; 43281da177e4SLinus Torvalds if ((status = decode_attr_maxname(xdr, bitmap, &pathconf->max_namelen)) != 0) 43291da177e4SLinus Torvalds goto xdr_error; 43301da177e4SLinus Torvalds 43311da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 43321da177e4SLinus Torvalds xdr_error: 43333110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 43341da177e4SLinus Torvalds return status; 43351da177e4SLinus Torvalds } 43361da177e4SLinus Torvalds 4337ae42c70aSBryan Schumaker static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap, 4338ae42c70aSBryan Schumaker struct nfs_fattr *fattr, struct nfs_fh *fh, 43398b7e3f49STrond Myklebust struct nfs4_fs_locations *fs_loc, 43406926afd1STrond Myklebust const struct nfs_server *server) 43411da177e4SLinus Torvalds { 4342bca79478STrond Myklebust int status; 4343bca79478STrond Myklebust umode_t fmode = 0; 4344ae42c70aSBryan Schumaker uint32_t type; 4345ee7b75fcSTrond Myklebust int32_t err; 43461da177e4SLinus Torvalds 4347f26c7a78STrond Myklebust status = decode_attr_type(xdr, bitmap, &type); 4348f26c7a78STrond Myklebust if (status < 0) 43491da177e4SLinus Torvalds goto xdr_error; 4350409924e4STrond Myklebust fattr->mode = 0; 4351409924e4STrond Myklebust if (status != 0) { 4352409924e4STrond Myklebust fattr->mode |= nfs_type2fmt[type]; 4353409924e4STrond Myklebust fattr->valid |= status; 4354409924e4STrond Myklebust } 43551da177e4SLinus Torvalds 4356f26c7a78STrond Myklebust status = decode_attr_change(xdr, bitmap, &fattr->change_attr); 4357f26c7a78STrond Myklebust if (status < 0) 43581da177e4SLinus Torvalds goto xdr_error; 4359409924e4STrond Myklebust fattr->valid |= status; 4360f26c7a78STrond Myklebust 4361f26c7a78STrond Myklebust status = decode_attr_size(xdr, bitmap, &fattr->size); 4362f26c7a78STrond Myklebust if (status < 0) 43631da177e4SLinus Torvalds goto xdr_error; 4364409924e4STrond Myklebust fattr->valid |= status; 4365f26c7a78STrond Myklebust 4366f26c7a78STrond Myklebust status = decode_attr_fsid(xdr, bitmap, &fattr->fsid); 4367f26c7a78STrond Myklebust if (status < 0) 43681da177e4SLinus Torvalds goto xdr_error; 4369409924e4STrond Myklebust fattr->valid |= status; 4370f26c7a78STrond Myklebust 4371ee7b75fcSTrond Myklebust err = 0; 4372ee7b75fcSTrond Myklebust status = decode_attr_error(xdr, bitmap, &err); 4373ae42c70aSBryan Schumaker if (status < 0) 4374ae42c70aSBryan Schumaker goto xdr_error; 4375ee7b75fcSTrond Myklebust if (err == -NFS4ERR_WRONGSEC) 4376ee7b75fcSTrond Myklebust nfs_fixup_secinfo_attributes(fattr, fh); 4377ae42c70aSBryan Schumaker 4378ae42c70aSBryan Schumaker status = decode_attr_filehandle(xdr, bitmap, fh); 4379ae42c70aSBryan Schumaker if (status < 0) 4380ae42c70aSBryan Schumaker goto xdr_error; 4381ae42c70aSBryan Schumaker 4382f26c7a78STrond Myklebust status = decode_attr_fileid(xdr, bitmap, &fattr->fileid); 4383f26c7a78STrond Myklebust if (status < 0) 43841da177e4SLinus Torvalds goto xdr_error; 4385409924e4STrond Myklebust fattr->valid |= status; 4386f26c7a78STrond Myklebust 43878b7e3f49STrond Myklebust status = decode_attr_fs_locations(xdr, bitmap, fs_loc); 4388f26c7a78STrond Myklebust if (status < 0) 4389683b57b4STrond Myklebust goto xdr_error; 4390409924e4STrond Myklebust fattr->valid |= status; 4391f26c7a78STrond Myklebust 4392f26c7a78STrond Myklebust status = decode_attr_mode(xdr, bitmap, &fmode); 4393f26c7a78STrond Myklebust if (status < 0) 43941da177e4SLinus Torvalds goto xdr_error; 4395409924e4STrond Myklebust if (status != 0) { 43961da177e4SLinus Torvalds fattr->mode |= fmode; 4397409924e4STrond Myklebust fattr->valid |= status; 4398409924e4STrond Myklebust } 4399f26c7a78STrond Myklebust 4400f26c7a78STrond Myklebust status = decode_attr_nlink(xdr, bitmap, &fattr->nlink); 4401f26c7a78STrond Myklebust if (status < 0) 44021da177e4SLinus Torvalds goto xdr_error; 4403409924e4STrond Myklebust fattr->valid |= status; 4404f26c7a78STrond Myklebust 44056926afd1STrond Myklebust status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name); 4406f26c7a78STrond Myklebust if (status < 0) 44071da177e4SLinus Torvalds goto xdr_error; 4408409924e4STrond Myklebust fattr->valid |= status; 4409f26c7a78STrond Myklebust 44106926afd1STrond Myklebust status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name); 4411f26c7a78STrond Myklebust if (status < 0) 44121da177e4SLinus Torvalds goto xdr_error; 4413409924e4STrond Myklebust fattr->valid |= status; 4414f26c7a78STrond Myklebust 4415f26c7a78STrond Myklebust status = decode_attr_rdev(xdr, bitmap, &fattr->rdev); 4416f26c7a78STrond Myklebust if (status < 0) 44171da177e4SLinus Torvalds goto xdr_error; 4418409924e4STrond Myklebust fattr->valid |= status; 4419f26c7a78STrond Myklebust 4420f26c7a78STrond Myklebust status = decode_attr_space_used(xdr, bitmap, &fattr->du.nfs3.used); 4421f26c7a78STrond Myklebust if (status < 0) 44221da177e4SLinus Torvalds goto xdr_error; 4423409924e4STrond Myklebust fattr->valid |= status; 4424f26c7a78STrond Myklebust 4425f26c7a78STrond Myklebust status = decode_attr_time_access(xdr, bitmap, &fattr->atime); 4426f26c7a78STrond Myklebust if (status < 0) 44271da177e4SLinus Torvalds goto xdr_error; 4428409924e4STrond Myklebust fattr->valid |= status; 4429f26c7a78STrond Myklebust 4430f26c7a78STrond Myklebust status = decode_attr_time_metadata(xdr, bitmap, &fattr->ctime); 4431f26c7a78STrond Myklebust if (status < 0) 44321da177e4SLinus Torvalds goto xdr_error; 4433409924e4STrond Myklebust fattr->valid |= status; 4434f26c7a78STrond Myklebust 4435f26c7a78STrond Myklebust status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime); 4436f26c7a78STrond Myklebust if (status < 0) 44371da177e4SLinus Torvalds goto xdr_error; 4438409924e4STrond Myklebust fattr->valid |= status; 4439f26c7a78STrond Myklebust 444028331a46STrond Myklebust status = decode_attr_mounted_on_fileid(xdr, bitmap, &fattr->mounted_on_fileid); 4441f26c7a78STrond Myklebust if (status < 0) 444299baf625SManoj Naik goto xdr_error; 4443409924e4STrond Myklebust fattr->valid |= status; 4444f26c7a78STrond Myklebust 4445ae42c70aSBryan Schumaker xdr_error: 4446ae42c70aSBryan Schumaker dprintk("%s: xdr returned %d\n", __func__, -status); 4447ae42c70aSBryan Schumaker return status; 4448ae42c70aSBryan Schumaker } 4449ae42c70aSBryan Schumaker 4450ae42c70aSBryan Schumaker static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr, 44518b7e3f49STrond Myklebust struct nfs_fh *fh, struct nfs4_fs_locations *fs_loc, 44528b7e3f49STrond Myklebust const struct nfs_server *server) 4453ae42c70aSBryan Schumaker { 4454ae42c70aSBryan Schumaker __be32 *savep; 4455ae42c70aSBryan Schumaker uint32_t attrlen, 4456dae100c2SFred Isaman bitmap[3] = {0}; 4457ae42c70aSBryan Schumaker int status; 4458ae42c70aSBryan Schumaker 4459ae42c70aSBryan Schumaker status = decode_op_hdr(xdr, OP_GETATTR); 4460ae42c70aSBryan Schumaker if (status < 0) 4461ae42c70aSBryan Schumaker goto xdr_error; 4462ae42c70aSBryan Schumaker 4463ae42c70aSBryan Schumaker status = decode_attr_bitmap(xdr, bitmap); 4464ae42c70aSBryan Schumaker if (status < 0) 4465ae42c70aSBryan Schumaker goto xdr_error; 4466ae42c70aSBryan Schumaker 4467ae42c70aSBryan Schumaker status = decode_attr_length(xdr, &attrlen, &savep); 4468ae42c70aSBryan Schumaker if (status < 0) 4469ae42c70aSBryan Schumaker goto xdr_error; 4470ae42c70aSBryan Schumaker 44718b7e3f49STrond Myklebust status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, fs_loc, server); 4472ae42c70aSBryan Schumaker if (status < 0) 4473ae42c70aSBryan Schumaker goto xdr_error; 4474ae42c70aSBryan Schumaker 4475f26c7a78STrond Myklebust status = verify_attr_len(xdr, savep, attrlen); 44761da177e4SLinus Torvalds xdr_error: 44773110ff80SHarvey Harrison dprintk("%s: xdr returned %d\n", __func__, -status); 44781da177e4SLinus Torvalds return status; 44791da177e4SLinus Torvalds } 44801da177e4SLinus Torvalds 4481ae42c70aSBryan Schumaker static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, 44826926afd1STrond Myklebust const struct nfs_server *server) 4483ae42c70aSBryan Schumaker { 44848b7e3f49STrond Myklebust return decode_getfattr_generic(xdr, fattr, NULL, NULL, server); 4485ae42c70aSBryan Schumaker } 44861da177e4SLinus Torvalds 4487504913fbSAndy Adamson /* 4488504913fbSAndy Adamson * Decode potentially multiple layout types. Currently we only support 4489504913fbSAndy Adamson * one layout driver per file system. 4490504913fbSAndy Adamson */ 4491504913fbSAndy Adamson static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, 4492504913fbSAndy Adamson uint32_t *layouttype) 4493504913fbSAndy Adamson { 4494504913fbSAndy Adamson uint32_t *p; 4495504913fbSAndy Adamson int num; 4496504913fbSAndy Adamson 4497504913fbSAndy Adamson p = xdr_inline_decode(xdr, 4); 4498504913fbSAndy Adamson if (unlikely(!p)) 4499504913fbSAndy Adamson goto out_overflow; 4500504913fbSAndy Adamson num = be32_to_cpup(p); 4501504913fbSAndy Adamson 4502504913fbSAndy Adamson /* pNFS is not supported by the underlying file system */ 4503504913fbSAndy Adamson if (num == 0) { 4504504913fbSAndy Adamson *layouttype = 0; 4505504913fbSAndy Adamson return 0; 4506504913fbSAndy Adamson } 4507504913fbSAndy Adamson if (num > 1) 4508a030889aSWeston Andros Adamson printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " 4509a030889aSWeston Andros Adamson "drivers per filesystem not supported\n", __func__); 4510504913fbSAndy Adamson 4511504913fbSAndy Adamson /* Decode and set first layout type, move xdr->p past unused types */ 4512504913fbSAndy Adamson p = xdr_inline_decode(xdr, num * 4); 4513504913fbSAndy Adamson if (unlikely(!p)) 4514504913fbSAndy Adamson goto out_overflow; 4515504913fbSAndy Adamson *layouttype = be32_to_cpup(p); 4516504913fbSAndy Adamson return 0; 4517504913fbSAndy Adamson out_overflow: 4518504913fbSAndy Adamson print_overflow_msg(__func__, xdr); 4519504913fbSAndy Adamson return -EIO; 4520504913fbSAndy Adamson } 4521504913fbSAndy Adamson 4522504913fbSAndy Adamson /* 4523504913fbSAndy Adamson * The type of file system exported. 4524504913fbSAndy Adamson * Note we must ensure that layouttype is set in any non-error case. 4525504913fbSAndy Adamson */ 4526504913fbSAndy Adamson static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, 4527504913fbSAndy Adamson uint32_t *layouttype) 4528504913fbSAndy Adamson { 4529504913fbSAndy Adamson int status = 0; 4530504913fbSAndy Adamson 4531504913fbSAndy Adamson dprintk("%s: bitmap is %x\n", __func__, bitmap[1]); 4532504913fbSAndy Adamson if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) 4533504913fbSAndy Adamson return -EIO; 4534504913fbSAndy Adamson if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { 4535504913fbSAndy Adamson status = decode_first_pnfs_layout_type(xdr, layouttype); 4536504913fbSAndy Adamson bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; 4537504913fbSAndy Adamson } else 4538504913fbSAndy Adamson *layouttype = 0; 4539504913fbSAndy Adamson return status; 4540504913fbSAndy Adamson } 4541504913fbSAndy Adamson 4542dae100c2SFred Isaman /* 4543dae100c2SFred Isaman * The prefered block size for layout directed io 4544dae100c2SFred Isaman */ 4545dae100c2SFred Isaman static int decode_attr_layout_blksize(struct xdr_stream *xdr, uint32_t *bitmap, 4546dae100c2SFred Isaman uint32_t *res) 4547dae100c2SFred Isaman { 4548dae100c2SFred Isaman __be32 *p; 4549dae100c2SFred Isaman 4550dae100c2SFred Isaman dprintk("%s: bitmap is %x\n", __func__, bitmap[2]); 4551dae100c2SFred Isaman *res = 0; 4552dae100c2SFred Isaman if (bitmap[2] & FATTR4_WORD2_LAYOUT_BLKSIZE) { 4553dae100c2SFred Isaman p = xdr_inline_decode(xdr, 4); 4554dae100c2SFred Isaman if (unlikely(!p)) { 4555dae100c2SFred Isaman print_overflow_msg(__func__, xdr); 4556dae100c2SFred Isaman return -EIO; 4557dae100c2SFred Isaman } 4558dae100c2SFred Isaman *res = be32_to_cpup(p); 4559dae100c2SFred Isaman bitmap[2] &= ~FATTR4_WORD2_LAYOUT_BLKSIZE; 4560dae100c2SFred Isaman } 4561dae100c2SFred Isaman return 0; 4562dae100c2SFred Isaman } 4563dae100c2SFred Isaman 45641da177e4SLinus Torvalds static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) 45651da177e4SLinus Torvalds { 45668687b63aSAl Viro __be32 *savep; 4567dae100c2SFred Isaman uint32_t attrlen, bitmap[3]; 45681da177e4SLinus Torvalds int status; 45691da177e4SLinus Torvalds 45701da177e4SLinus Torvalds if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 45711da177e4SLinus Torvalds goto xdr_error; 45721da177e4SLinus Torvalds if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 45731da177e4SLinus Torvalds goto xdr_error; 45741da177e4SLinus Torvalds if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 45751da177e4SLinus Torvalds goto xdr_error; 45761da177e4SLinus Torvalds 45771da177e4SLinus Torvalds fsinfo->rtmult = fsinfo->wtmult = 512; /* ??? */ 45781da177e4SLinus Torvalds 45791da177e4SLinus Torvalds if ((status = decode_attr_lease_time(xdr, bitmap, &fsinfo->lease_time)) != 0) 45801da177e4SLinus Torvalds goto xdr_error; 45811da177e4SLinus Torvalds if ((status = decode_attr_maxfilesize(xdr, bitmap, &fsinfo->maxfilesize)) != 0) 45821da177e4SLinus Torvalds goto xdr_error; 45831da177e4SLinus Torvalds if ((status = decode_attr_maxread(xdr, bitmap, &fsinfo->rtmax)) != 0) 45841da177e4SLinus Torvalds goto xdr_error; 45851da177e4SLinus Torvalds fsinfo->rtpref = fsinfo->dtpref = fsinfo->rtmax; 45861da177e4SLinus Torvalds if ((status = decode_attr_maxwrite(xdr, bitmap, &fsinfo->wtmax)) != 0) 45871da177e4SLinus Torvalds goto xdr_error; 45881da177e4SLinus Torvalds fsinfo->wtpref = fsinfo->wtmax; 458955b6e774SRicardo Labiaga status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); 459055b6e774SRicardo Labiaga if (status != 0) 459155b6e774SRicardo Labiaga goto xdr_error; 4592504913fbSAndy Adamson status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); 4593504913fbSAndy Adamson if (status != 0) 4594504913fbSAndy Adamson goto xdr_error; 4595dae100c2SFred Isaman status = decode_attr_layout_blksize(xdr, bitmap, &fsinfo->blksize); 4596dae100c2SFred Isaman if (status) 4597dae100c2SFred Isaman goto xdr_error; 45981da177e4SLinus Torvalds 45991da177e4SLinus Torvalds status = verify_attr_len(xdr, savep, attrlen); 46001da177e4SLinus Torvalds xdr_error: 46013110ff80SHarvey Harrison dprintk("%s: xdr returned %d!\n", __func__, -status); 46021da177e4SLinus Torvalds return status; 46031da177e4SLinus Torvalds } 46041da177e4SLinus Torvalds 46051da177e4SLinus Torvalds static int decode_getfh(struct xdr_stream *xdr, struct nfs_fh *fh) 46061da177e4SLinus Torvalds { 46078687b63aSAl Viro __be32 *p; 46081da177e4SLinus Torvalds uint32_t len; 46091da177e4SLinus Torvalds int status; 46101da177e4SLinus Torvalds 46119936781dSTrond Myklebust /* Zero handle first to allow comparisons */ 46129936781dSTrond Myklebust memset(fh, 0, sizeof(*fh)); 46139936781dSTrond Myklebust 46141da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_GETFH); 46151da177e4SLinus Torvalds if (status) 46161da177e4SLinus Torvalds return status; 46171da177e4SLinus Torvalds 4618c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4619c0eae66eSBenny Halevy if (unlikely(!p)) 4620c0eae66eSBenny Halevy goto out_overflow; 4621cccddf4fSBenny Halevy len = be32_to_cpup(p); 46221da177e4SLinus Torvalds if (len > NFS4_FHSIZE) 46231da177e4SLinus Torvalds return -EIO; 46241da177e4SLinus Torvalds fh->size = len; 4625c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 4626c0eae66eSBenny Halevy if (unlikely(!p)) 4627c0eae66eSBenny Halevy goto out_overflow; 462899398d06SBenny Halevy memcpy(fh->data, p, len); 46291da177e4SLinus Torvalds return 0; 4630c0eae66eSBenny Halevy out_overflow: 4631c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4632c0eae66eSBenny Halevy return -EIO; 46331da177e4SLinus Torvalds } 46341da177e4SLinus Torvalds 46351da177e4SLinus Torvalds static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 46361da177e4SLinus Torvalds { 46371da177e4SLinus Torvalds int status; 46381da177e4SLinus Torvalds 46391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LINK); 46401da177e4SLinus Torvalds if (status) 46411da177e4SLinus Torvalds return status; 46421da177e4SLinus Torvalds return decode_change_info(xdr, cinfo); 46431da177e4SLinus Torvalds } 46441da177e4SLinus Torvalds 46451da177e4SLinus Torvalds /* 46461da177e4SLinus Torvalds * We create the owner, so we know a proper owner.id length is 4. 46471da177e4SLinus Torvalds */ 4648911d1aafSTrond Myklebust static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl) 46491da177e4SLinus Torvalds { 4650911d1aafSTrond Myklebust uint64_t offset, length, clientid; 46518687b63aSAl Viro __be32 *p; 4652911d1aafSTrond Myklebust uint32_t namelen, type; 46531da177e4SLinus Torvalds 4654babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 32); /* read 32 bytes */ 4655c0eae66eSBenny Halevy if (unlikely(!p)) 4656c0eae66eSBenny Halevy goto out_overflow; 4657babddc72SBryan Schumaker p = xdr_decode_hyper(p, &offset); /* read 2 8-byte long words */ 46583ceb4dbbSBenny Halevy p = xdr_decode_hyper(p, &length); 4659babddc72SBryan Schumaker type = be32_to_cpup(p++); /* 4 byte read */ 4660babddc72SBryan Schumaker if (fl != NULL) { /* manipulate file lock */ 4661911d1aafSTrond Myklebust fl->fl_start = (loff_t)offset; 4662911d1aafSTrond Myklebust fl->fl_end = fl->fl_start + (loff_t)length - 1; 4663911d1aafSTrond Myklebust if (length == ~(uint64_t)0) 4664911d1aafSTrond Myklebust fl->fl_end = OFFSET_MAX; 4665911d1aafSTrond Myklebust fl->fl_type = F_WRLCK; 4666911d1aafSTrond Myklebust if (type & 1) 4667911d1aafSTrond Myklebust fl->fl_type = F_RDLCK; 4668911d1aafSTrond Myklebust fl->fl_pid = 0; 4669911d1aafSTrond Myklebust } 4670babddc72SBryan Schumaker p = xdr_decode_hyper(p, &clientid); /* read 8 bytes */ 4671babddc72SBryan Schumaker namelen = be32_to_cpup(p); /* read 4 bytes */ /* have read all 32 bytes now */ 4672babddc72SBryan Schumaker p = xdr_inline_decode(xdr, namelen); /* variable size field */ 4673c0eae66eSBenny Halevy if (likely(p)) 46741da177e4SLinus Torvalds return -NFS4ERR_DENIED; 4675c0eae66eSBenny Halevy out_overflow: 4676c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4677c0eae66eSBenny Halevy return -EIO; 46781da177e4SLinus Torvalds } 46791da177e4SLinus Torvalds 4680911d1aafSTrond Myklebust static int decode_lock(struct xdr_stream *xdr, struct nfs_lock_res *res) 46811da177e4SLinus Torvalds { 46821da177e4SLinus Torvalds int status; 46831da177e4SLinus Torvalds 46841da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCK); 4685c1d51931STrond Myklebust if (status == -EIO) 4686c1d51931STrond Myklebust goto out; 46871da177e4SLinus Torvalds if (status == 0) { 468807d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 468907d30434SBenny Halevy if (unlikely(status)) 469007d30434SBenny Halevy goto out; 46911da177e4SLinus Torvalds } else if (status == -NFS4ERR_DENIED) 4692c1d51931STrond Myklebust status = decode_lock_denied(xdr, NULL); 4693c1d51931STrond Myklebust if (res->open_seqid != NULL) 4694c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->open_seqid); 4695c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->lock_seqid); 4696c1d51931STrond Myklebust out: 46971da177e4SLinus Torvalds return status; 46981da177e4SLinus Torvalds } 46991da177e4SLinus Torvalds 4700911d1aafSTrond Myklebust static int decode_lockt(struct xdr_stream *xdr, struct nfs_lockt_res *res) 47011da177e4SLinus Torvalds { 47021da177e4SLinus Torvalds int status; 47031da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKT); 47041da177e4SLinus Torvalds if (status == -NFS4ERR_DENIED) 4705911d1aafSTrond Myklebust return decode_lock_denied(xdr, res->denied); 47061da177e4SLinus Torvalds return status; 47071da177e4SLinus Torvalds } 47081da177e4SLinus Torvalds 4709911d1aafSTrond Myklebust static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res) 47101da177e4SLinus Torvalds { 47111da177e4SLinus Torvalds int status; 47121da177e4SLinus Torvalds 47131da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_LOCKU); 4714c1d51931STrond Myklebust if (status != -EIO) 4715c1d51931STrond Myklebust nfs_increment_lock_seqid(status, res->seqid); 471607d30434SBenny Halevy if (status == 0) 471707d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 47181da177e4SLinus Torvalds return status; 47191da177e4SLinus Torvalds } 47201da177e4SLinus Torvalds 4721d3c7b7ccSTrond Myklebust static int decode_release_lockowner(struct xdr_stream *xdr) 4722d3c7b7ccSTrond Myklebust { 4723d3c7b7ccSTrond Myklebust return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER); 4724d3c7b7ccSTrond Myklebust } 4725d3c7b7ccSTrond Myklebust 47261da177e4SLinus Torvalds static int decode_lookup(struct xdr_stream *xdr) 47271da177e4SLinus Torvalds { 47281da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_LOOKUP); 47291da177e4SLinus Torvalds } 47301da177e4SLinus Torvalds 47311da177e4SLinus Torvalds /* This is too sick! */ 47321da177e4SLinus Torvalds static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize) 47331da177e4SLinus Torvalds { 47348687b63aSAl Viro __be32 *p; 47351da177e4SLinus Torvalds uint32_t limit_type, nblocks, blocksize; 47361da177e4SLinus Torvalds 4737c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 4738c0eae66eSBenny Halevy if (unlikely(!p)) 4739c0eae66eSBenny Halevy goto out_overflow; 47406f723f77SBenny Halevy limit_type = be32_to_cpup(p++); 47411da177e4SLinus Torvalds switch (limit_type) { 47421da177e4SLinus Torvalds case 1: 4743cccddf4fSBenny Halevy xdr_decode_hyper(p, maxsize); 47441da177e4SLinus Torvalds break; 47451da177e4SLinus Torvalds case 2: 47466f723f77SBenny Halevy nblocks = be32_to_cpup(p++); 4747cccddf4fSBenny Halevy blocksize = be32_to_cpup(p); 47481da177e4SLinus Torvalds *maxsize = (uint64_t)nblocks * (uint64_t)blocksize; 47491da177e4SLinus Torvalds } 47501da177e4SLinus Torvalds return 0; 4751c0eae66eSBenny Halevy out_overflow: 4752c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4753c0eae66eSBenny Halevy return -EIO; 47541da177e4SLinus Torvalds } 47551da177e4SLinus Torvalds 47561da177e4SLinus Torvalds static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res) 47571da177e4SLinus Torvalds { 47588687b63aSAl Viro __be32 *p; 47591da177e4SLinus Torvalds uint32_t delegation_type; 476007d30434SBenny Halevy int status; 47611da177e4SLinus Torvalds 4762c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4763c0eae66eSBenny Halevy if (unlikely(!p)) 4764c0eae66eSBenny Halevy goto out_overflow; 4765cccddf4fSBenny Halevy delegation_type = be32_to_cpup(p); 47661da177e4SLinus Torvalds if (delegation_type == NFS4_OPEN_DELEGATE_NONE) { 47671da177e4SLinus Torvalds res->delegation_type = 0; 47681da177e4SLinus Torvalds return 0; 47691da177e4SLinus Torvalds } 477007d30434SBenny Halevy status = decode_stateid(xdr, &res->delegation); 477107d30434SBenny Halevy if (unlikely(status)) 477207d30434SBenny Halevy return status; 4773c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4774c0eae66eSBenny Halevy if (unlikely(!p)) 4775c0eae66eSBenny Halevy goto out_overflow; 4776cccddf4fSBenny Halevy res->do_recall = be32_to_cpup(p); 477705d564feSAndy Adamson 47781da177e4SLinus Torvalds switch (delegation_type) { 47791da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_READ: 47801da177e4SLinus Torvalds res->delegation_type = FMODE_READ; 47811da177e4SLinus Torvalds break; 47821da177e4SLinus Torvalds case NFS4_OPEN_DELEGATE_WRITE: 47831da177e4SLinus Torvalds res->delegation_type = FMODE_WRITE|FMODE_READ; 47841da177e4SLinus Torvalds if (decode_space_limit(xdr, &res->maxsize) < 0) 47851da177e4SLinus Torvalds return -EIO; 47861da177e4SLinus Torvalds } 47877539bbabSDavid Howells return decode_ace(xdr, NULL, res->server->nfs_client); 4788c0eae66eSBenny Halevy out_overflow: 4789c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4790c0eae66eSBenny Halevy return -EIO; 47911da177e4SLinus Torvalds } 47921da177e4SLinus Torvalds 47931da177e4SLinus Torvalds static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res) 47941da177e4SLinus Torvalds { 47958687b63aSAl Viro __be32 *p; 4796aa53ed54SJeff Layton uint32_t savewords, bmlen, i; 47971da177e4SLinus Torvalds int status; 47981da177e4SLinus Torvalds 47991da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN); 4800c1d51931STrond Myklebust if (status != -EIO) 4801c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 480207d30434SBenny Halevy if (!status) 480307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 480407d30434SBenny Halevy if (unlikely(status)) 48051da177e4SLinus Torvalds return status; 48061da177e4SLinus Torvalds 48071da177e4SLinus Torvalds decode_change_info(xdr, &res->cinfo); 48081da177e4SLinus Torvalds 4809c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4810c0eae66eSBenny Halevy if (unlikely(!p)) 4811c0eae66eSBenny Halevy goto out_overflow; 48126f723f77SBenny Halevy res->rflags = be32_to_cpup(p++); 4813cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 48141da177e4SLinus Torvalds if (bmlen > 10) 48151da177e4SLinus Torvalds goto xdr_error; 48161da177e4SLinus Torvalds 4817c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 4818c0eae66eSBenny Halevy if (unlikely(!p)) 4819c0eae66eSBenny Halevy goto out_overflow; 4820aa53ed54SJeff Layton savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE); 4821aa53ed54SJeff Layton for (i = 0; i < savewords; ++i) 48226f723f77SBenny Halevy res->attrset[i] = be32_to_cpup(p++); 4823aa53ed54SJeff Layton for (; i < NFS4_BITMAP_SIZE; i++) 4824aa53ed54SJeff Layton res->attrset[i] = 0; 4825aa53ed54SJeff Layton 48261da177e4SLinus Torvalds return decode_delegation(xdr, res); 48271da177e4SLinus Torvalds xdr_error: 48283110ff80SHarvey Harrison dprintk("%s: Bitmap too large! Length = %u\n", __func__, bmlen); 48291da177e4SLinus Torvalds return -EIO; 4830c0eae66eSBenny Halevy out_overflow: 4831c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4832c0eae66eSBenny Halevy return -EIO; 48331da177e4SLinus Torvalds } 48341da177e4SLinus Torvalds 48351da177e4SLinus Torvalds static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res) 48361da177e4SLinus Torvalds { 48371da177e4SLinus Torvalds int status; 48381da177e4SLinus Torvalds 48391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_CONFIRM); 4840c1d51931STrond Myklebust if (status != -EIO) 4841c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 484207d30434SBenny Halevy if (!status) 484307d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48441da177e4SLinus Torvalds return status; 48451da177e4SLinus Torvalds } 48461da177e4SLinus Torvalds 48471da177e4SLinus Torvalds static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res) 48481da177e4SLinus Torvalds { 48491da177e4SLinus Torvalds int status; 48501da177e4SLinus Torvalds 48511da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_OPEN_DOWNGRADE); 4852c1d51931STrond Myklebust if (status != -EIO) 4853c1d51931STrond Myklebust nfs_increment_open_seqid(status, res->seqid); 485407d30434SBenny Halevy if (!status) 485507d30434SBenny Halevy status = decode_stateid(xdr, &res->stateid); 48561da177e4SLinus Torvalds return status; 48571da177e4SLinus Torvalds } 48581da177e4SLinus Torvalds 48591da177e4SLinus Torvalds static int decode_putfh(struct xdr_stream *xdr) 48601da177e4SLinus Torvalds { 48611da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTFH); 48621da177e4SLinus Torvalds } 48631da177e4SLinus Torvalds 48641da177e4SLinus Torvalds static int decode_putrootfh(struct xdr_stream *xdr) 48651da177e4SLinus Torvalds { 48661da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_PUTROOTFH); 48671da177e4SLinus Torvalds } 48681da177e4SLinus Torvalds 48691da177e4SLinus Torvalds static int decode_read(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs_readres *res) 48701da177e4SLinus Torvalds { 48711da177e4SLinus Torvalds struct kvec *iov = req->rq_rcv_buf.head; 48728687b63aSAl Viro __be32 *p; 48731da177e4SLinus Torvalds uint32_t count, eof, recvd, hdrlen; 48741da177e4SLinus Torvalds int status; 48751da177e4SLinus Torvalds 48761da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READ); 48771da177e4SLinus Torvalds if (status) 48781da177e4SLinus Torvalds return status; 4879c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 4880c0eae66eSBenny Halevy if (unlikely(!p)) 4881c0eae66eSBenny Halevy goto out_overflow; 48826f723f77SBenny Halevy eof = be32_to_cpup(p++); 4883cccddf4fSBenny Halevy count = be32_to_cpup(p); 48848111f373SChuck Lever hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 48851da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 48861da177e4SLinus Torvalds if (count > recvd) { 4887fe82a183SChuck Lever dprintk("NFS: server cheating in read reply: " 48881da177e4SLinus Torvalds "count %u > recvd %u\n", count, recvd); 48891da177e4SLinus Torvalds count = recvd; 48901da177e4SLinus Torvalds eof = 0; 48911da177e4SLinus Torvalds } 48921da177e4SLinus Torvalds xdr_read_pages(xdr, count); 48931da177e4SLinus Torvalds res->eof = eof; 48941da177e4SLinus Torvalds res->count = count; 48951da177e4SLinus Torvalds return 0; 4896c0eae66eSBenny Halevy out_overflow: 4897c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4898c0eae66eSBenny Halevy return -EIO; 48991da177e4SLinus Torvalds } 49001da177e4SLinus Torvalds 49011da177e4SLinus Torvalds static int decode_readdir(struct xdr_stream *xdr, struct rpc_rqst *req, struct nfs4_readdir_res *readdir) 49021da177e4SLinus Torvalds { 49031da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 49041da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4905bcecff77SChuck Lever size_t hdrlen; 4906bcecff77SChuck Lever u32 recvd, pglen = rcvbuf->page_len; 4907bcecff77SChuck Lever int status; 49081da177e4SLinus Torvalds 49091da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READDIR); 4910db942bbdSBenny Halevy if (!status) 4911db942bbdSBenny Halevy status = decode_verifier(xdr, readdir->verifier.data); 4912db942bbdSBenny Halevy if (unlikely(status)) 49131da177e4SLinus Torvalds return status; 491444109241SFred Isaman dprintk("%s: verifier = %08x:%08x\n", 491544109241SFred Isaman __func__, 4916eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[0], 4917eadf4598STrond Myklebust ((u32 *)readdir->verifier.data)[1]); 4918eadf4598STrond Myklebust 49191da177e4SLinus Torvalds 4920db942bbdSBenny Halevy hdrlen = (char *) xdr->p - (char *) iov->iov_base; 49211da177e4SLinus Torvalds recvd = rcvbuf->len - hdrlen; 49221da177e4SLinus Torvalds if (pglen > recvd) 49231da177e4SLinus Torvalds pglen = recvd; 49241da177e4SLinus Torvalds xdr_read_pages(xdr, pglen); 49251da177e4SLinus Torvalds 49267bda2cdfSJeff Layton 4927ac396128STrond Myklebust return pglen; 49281da177e4SLinus Torvalds } 49291da177e4SLinus Torvalds 49301da177e4SLinus Torvalds static int decode_readlink(struct xdr_stream *xdr, struct rpc_rqst *req) 49311da177e4SLinus Torvalds { 49321da177e4SLinus Torvalds struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 49331da177e4SLinus Torvalds struct kvec *iov = rcvbuf->head; 4934bcecff77SChuck Lever size_t hdrlen; 4935bcecff77SChuck Lever u32 len, recvd; 49368687b63aSAl Viro __be32 *p; 49371da177e4SLinus Torvalds int status; 49381da177e4SLinus Torvalds 49391da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_READLINK); 49401da177e4SLinus Torvalds if (status) 49411da177e4SLinus Torvalds return status; 49421da177e4SLinus Torvalds 49431da177e4SLinus Torvalds /* Convert length of symlink */ 4944c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 4945c0eae66eSBenny Halevy if (unlikely(!p)) 4946c0eae66eSBenny Halevy goto out_overflow; 4947cccddf4fSBenny Halevy len = be32_to_cpup(p); 49481da177e4SLinus Torvalds if (len >= rcvbuf->page_len || len <= 0) { 4949fe82a183SChuck Lever dprintk("nfs: server returned giant symlink!\n"); 49501da177e4SLinus Torvalds return -ENAMETOOLONG; 49511da177e4SLinus Torvalds } 49521da177e4SLinus Torvalds hdrlen = (char *) xdr->p - (char *) iov->iov_base; 49531da177e4SLinus Torvalds recvd = req->rq_rcv_buf.len - hdrlen; 49541da177e4SLinus Torvalds if (recvd < len) { 4955fe82a183SChuck Lever dprintk("NFS: server cheating in readlink reply: " 49561da177e4SLinus Torvalds "count %u > recvd %u\n", len, recvd); 49571da177e4SLinus Torvalds return -EIO; 49581da177e4SLinus Torvalds } 49591da177e4SLinus Torvalds xdr_read_pages(xdr, len); 49601da177e4SLinus Torvalds /* 49611da177e4SLinus Torvalds * The XDR encode routine has set things up so that 49621da177e4SLinus Torvalds * the link text will be copied directly into the 49631da177e4SLinus Torvalds * buffer. We just have to do overflow-checking, 49641da177e4SLinus Torvalds * and and null-terminate the text (the VFS expects 49651da177e4SLinus Torvalds * null-termination). 49661da177e4SLinus Torvalds */ 4967b4687da7SChuck Lever xdr_terminate_string(rcvbuf, len); 49681da177e4SLinus Torvalds return 0; 4969c0eae66eSBenny Halevy out_overflow: 4970c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 4971c0eae66eSBenny Halevy return -EIO; 49721da177e4SLinus Torvalds } 49731da177e4SLinus Torvalds 49741da177e4SLinus Torvalds static int decode_remove(struct xdr_stream *xdr, struct nfs4_change_info *cinfo) 49751da177e4SLinus Torvalds { 49761da177e4SLinus Torvalds int status; 49771da177e4SLinus Torvalds 49781da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_REMOVE); 49791da177e4SLinus Torvalds if (status) 49801da177e4SLinus Torvalds goto out; 49811da177e4SLinus Torvalds status = decode_change_info(xdr, cinfo); 49821da177e4SLinus Torvalds out: 49831da177e4SLinus Torvalds return status; 49841da177e4SLinus Torvalds } 49851da177e4SLinus Torvalds 49861da177e4SLinus Torvalds static int decode_rename(struct xdr_stream *xdr, struct nfs4_change_info *old_cinfo, 49871da177e4SLinus Torvalds struct nfs4_change_info *new_cinfo) 49881da177e4SLinus Torvalds { 49891da177e4SLinus Torvalds int status; 49901da177e4SLinus Torvalds 49911da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_RENAME); 49921da177e4SLinus Torvalds if (status) 49931da177e4SLinus Torvalds goto out; 49941da177e4SLinus Torvalds if ((status = decode_change_info(xdr, old_cinfo))) 49951da177e4SLinus Torvalds goto out; 49961da177e4SLinus Torvalds status = decode_change_info(xdr, new_cinfo); 49971da177e4SLinus Torvalds out: 49981da177e4SLinus Torvalds return status; 49991da177e4SLinus Torvalds } 50001da177e4SLinus Torvalds 50011da177e4SLinus Torvalds static int decode_renew(struct xdr_stream *xdr) 50021da177e4SLinus Torvalds { 50031da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_RENEW); 50041da177e4SLinus Torvalds } 50051da177e4SLinus Torvalds 500656ae19f3STrond Myklebust static int 500756ae19f3STrond Myklebust decode_restorefh(struct xdr_stream *xdr) 500856ae19f3STrond Myklebust { 500956ae19f3STrond Myklebust return decode_op_hdr(xdr, OP_RESTOREFH); 501056ae19f3STrond Myklebust } 501156ae19f3STrond Myklebust 5012029d105eSJ. Bruce Fields static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req, 5013bf118a34SAndy Adamson struct nfs_getaclres *res) 5014029d105eSJ. Bruce Fields { 5015bf118a34SAndy Adamson __be32 *savep, *bm_p; 5016029d105eSJ. Bruce Fields uint32_t attrlen, 5017dae100c2SFred Isaman bitmap[3] = {0}; 5018029d105eSJ. Bruce Fields struct kvec *iov = req->rq_rcv_buf.head; 5019029d105eSJ. Bruce Fields int status; 5020029d105eSJ. Bruce Fields 5021bf118a34SAndy Adamson res->acl_len = 0; 5022029d105eSJ. Bruce Fields if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0) 5023029d105eSJ. Bruce Fields goto out; 5024bf118a34SAndy Adamson bm_p = xdr->p; 5025029d105eSJ. Bruce Fields if ((status = decode_attr_bitmap(xdr, bitmap)) != 0) 5026029d105eSJ. Bruce Fields goto out; 5027029d105eSJ. Bruce Fields if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0) 5028029d105eSJ. Bruce Fields goto out; 5029029d105eSJ. Bruce Fields 5030029d105eSJ. Bruce Fields if (unlikely(bitmap[0] & (FATTR4_WORD0_ACL - 1U))) 5031029d105eSJ. Bruce Fields return -EIO; 5032029d105eSJ. Bruce Fields if (likely(bitmap[0] & FATTR4_WORD0_ACL)) { 5033bcecff77SChuck Lever size_t hdrlen; 5034bcecff77SChuck Lever u32 recvd; 5035029d105eSJ. Bruce Fields 5036bf118a34SAndy Adamson /* The bitmap (xdr len + bitmaps) and the attr xdr len words 5037bf118a34SAndy Adamson * are stored with the acl data to handle the problem of 5038bf118a34SAndy Adamson * variable length bitmaps.*/ 5039bf118a34SAndy Adamson xdr->p = bm_p; 5040bf118a34SAndy Adamson res->acl_data_offset = be32_to_cpup(bm_p) + 2; 5041bf118a34SAndy Adamson res->acl_data_offset <<= 2; 5042bf118a34SAndy Adamson 5043029d105eSJ. Bruce Fields /* We ignore &savep and don't do consistency checks on 5044029d105eSJ. Bruce Fields * the attr length. Let userspace figure it out.... */ 5045029d105eSJ. Bruce Fields hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base; 5046bf118a34SAndy Adamson attrlen += res->acl_data_offset; 5047029d105eSJ. Bruce Fields recvd = req->rq_rcv_buf.len - hdrlen; 5048029d105eSJ. Bruce Fields if (attrlen > recvd) { 5049bf118a34SAndy Adamson if (res->acl_flags & NFS4_ACL_LEN_REQUEST) { 5050bf118a34SAndy Adamson /* getxattr interface called with a NULL buf */ 5051bf118a34SAndy Adamson res->acl_len = attrlen; 5052bf118a34SAndy Adamson goto out; 5053bf118a34SAndy Adamson } 5054bf118a34SAndy Adamson dprintk("NFS: acl reply: attrlen %u > recvd %u\n", 5055029d105eSJ. Bruce Fields attrlen, recvd); 5056029d105eSJ. Bruce Fields return -EINVAL; 5057029d105eSJ. Bruce Fields } 5058029d105eSJ. Bruce Fields xdr_read_pages(xdr, attrlen); 5059bf118a34SAndy Adamson res->acl_len = attrlen; 50608c233cf9SJ. Bruce Fields } else 50618c233cf9SJ. Bruce Fields status = -EOPNOTSUPP; 5062029d105eSJ. Bruce Fields 5063029d105eSJ. Bruce Fields out: 5064029d105eSJ. Bruce Fields return status; 5065029d105eSJ. Bruce Fields } 5066029d105eSJ. Bruce Fields 50671da177e4SLinus Torvalds static int 50681da177e4SLinus Torvalds decode_savefh(struct xdr_stream *xdr) 50691da177e4SLinus Torvalds { 50701da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SAVEFH); 50711da177e4SLinus Torvalds } 50721da177e4SLinus Torvalds 50739e9ecc03SBenny Halevy static int decode_setattr(struct xdr_stream *xdr) 50741da177e4SLinus Torvalds { 50758687b63aSAl Viro __be32 *p; 50761da177e4SLinus Torvalds uint32_t bmlen; 50771da177e4SLinus Torvalds int status; 50781da177e4SLinus Torvalds 50791da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_SETATTR); 50801da177e4SLinus Torvalds if (status) 50811da177e4SLinus Torvalds return status; 5082c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5083c0eae66eSBenny Halevy if (unlikely(!p)) 5084c0eae66eSBenny Halevy goto out_overflow; 5085cccddf4fSBenny Halevy bmlen = be32_to_cpup(p); 5086c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, bmlen << 2); 5087c0eae66eSBenny Halevy if (likely(p)) 50881da177e4SLinus Torvalds return 0; 5089c0eae66eSBenny Halevy out_overflow: 5090c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5091c0eae66eSBenny Halevy return -EIO; 50921da177e4SLinus Torvalds } 50931da177e4SLinus Torvalds 5094bb8b27e5STrond Myklebust static int decode_setclientid(struct xdr_stream *xdr, struct nfs4_setclientid_res *res) 50951da177e4SLinus Torvalds { 50968687b63aSAl Viro __be32 *p; 50971da177e4SLinus Torvalds uint32_t opnum; 50981da177e4SLinus Torvalds int32_t nfserr; 50991da177e4SLinus Torvalds 5100c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5101c0eae66eSBenny Halevy if (unlikely(!p)) 5102c0eae66eSBenny Halevy goto out_overflow; 51036f723f77SBenny Halevy opnum = be32_to_cpup(p++); 51041da177e4SLinus Torvalds if (opnum != OP_SETCLIENTID) { 5105fe82a183SChuck Lever dprintk("nfs: decode_setclientid: Server returned operation" 51061da177e4SLinus Torvalds " %d\n", opnum); 51071da177e4SLinus Torvalds return -EIO; 51081da177e4SLinus Torvalds } 5109cccddf4fSBenny Halevy nfserr = be32_to_cpup(p); 51101da177e4SLinus Torvalds if (nfserr == NFS_OK) { 5111c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8 + NFS4_VERIFIER_SIZE); 5112c0eae66eSBenny Halevy if (unlikely(!p)) 5113c0eae66eSBenny Halevy goto out_overflow; 5114bb8b27e5STrond Myklebust p = xdr_decode_hyper(p, &res->clientid); 5115bb8b27e5STrond Myklebust memcpy(res->confirm.data, p, NFS4_VERIFIER_SIZE); 51161da177e4SLinus Torvalds } else if (nfserr == NFSERR_CLID_INUSE) { 51171da177e4SLinus Torvalds uint32_t len; 51181da177e4SLinus Torvalds 51191da177e4SLinus Torvalds /* skip netid string */ 5120c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5121c0eae66eSBenny Halevy if (unlikely(!p)) 5122c0eae66eSBenny Halevy goto out_overflow; 5123cccddf4fSBenny Halevy len = be32_to_cpup(p); 5124c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5125c0eae66eSBenny Halevy if (unlikely(!p)) 5126c0eae66eSBenny Halevy goto out_overflow; 51271da177e4SLinus Torvalds 51281da177e4SLinus Torvalds /* skip uaddr string */ 5129c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); 5130c0eae66eSBenny Halevy if (unlikely(!p)) 5131c0eae66eSBenny Halevy goto out_overflow; 5132cccddf4fSBenny Halevy len = be32_to_cpup(p); 5133c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, len); 5134c0eae66eSBenny Halevy if (unlikely(!p)) 5135c0eae66eSBenny Halevy goto out_overflow; 51361da177e4SLinus Torvalds return -NFSERR_CLID_INUSE; 51371da177e4SLinus Torvalds } else 5138856dff3dSBenny Halevy return nfs4_stat_to_errno(nfserr); 51391da177e4SLinus Torvalds 51401da177e4SLinus Torvalds return 0; 5141c0eae66eSBenny Halevy out_overflow: 5142c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5143c0eae66eSBenny Halevy return -EIO; 51441da177e4SLinus Torvalds } 51451da177e4SLinus Torvalds 51461da177e4SLinus Torvalds static int decode_setclientid_confirm(struct xdr_stream *xdr) 51471da177e4SLinus Torvalds { 51481da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_SETCLIENTID_CONFIRM); 51491da177e4SLinus Torvalds } 51501da177e4SLinus Torvalds 51511da177e4SLinus Torvalds static int decode_write(struct xdr_stream *xdr, struct nfs_writeres *res) 51521da177e4SLinus Torvalds { 51538687b63aSAl Viro __be32 *p; 51541da177e4SLinus Torvalds int status; 51551da177e4SLinus Torvalds 51561da177e4SLinus Torvalds status = decode_op_hdr(xdr, OP_WRITE); 51571da177e4SLinus Torvalds if (status) 51581da177e4SLinus Torvalds return status; 51591da177e4SLinus Torvalds 5160c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 16); 5161c0eae66eSBenny Halevy if (unlikely(!p)) 5162c0eae66eSBenny Halevy goto out_overflow; 51636f723f77SBenny Halevy res->count = be32_to_cpup(p++); 51646f723f77SBenny Halevy res->verf->committed = be32_to_cpup(p++); 516599398d06SBenny Halevy memcpy(res->verf->verifier, p, 8); 51661da177e4SLinus Torvalds return 0; 5167c0eae66eSBenny Halevy out_overflow: 5168c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5169c0eae66eSBenny Halevy return -EIO; 51701da177e4SLinus Torvalds } 51711da177e4SLinus Torvalds 51721da177e4SLinus Torvalds static int decode_delegreturn(struct xdr_stream *xdr) 51731da177e4SLinus Torvalds { 51741da177e4SLinus Torvalds return decode_op_hdr(xdr, OP_DELEGRETURN); 51751da177e4SLinus Torvalds } 51761da177e4SLinus Torvalds 51775a5ea0d4SBryan Schumaker static int decode_secinfo_gss(struct xdr_stream *xdr, struct nfs4_secinfo_flavor *flavor) 51785a5ea0d4SBryan Schumaker { 51795a5ea0d4SBryan Schumaker __be32 *p; 51805a5ea0d4SBryan Schumaker 51815a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 51825a5ea0d4SBryan Schumaker if (unlikely(!p)) 51835a5ea0d4SBryan Schumaker goto out_overflow; 51845a5ea0d4SBryan Schumaker flavor->gss.sec_oid4.len = be32_to_cpup(p); 51855a5ea0d4SBryan Schumaker if (flavor->gss.sec_oid4.len > GSS_OID_MAX_LEN) 51865a5ea0d4SBryan Schumaker goto out_err; 51875a5ea0d4SBryan Schumaker 51885a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, flavor->gss.sec_oid4.len); 51895a5ea0d4SBryan Schumaker if (unlikely(!p)) 51905a5ea0d4SBryan Schumaker goto out_overflow; 51915a5ea0d4SBryan Schumaker memcpy(flavor->gss.sec_oid4.data, p, flavor->gss.sec_oid4.len); 51925a5ea0d4SBryan Schumaker 51935a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 8); 51945a5ea0d4SBryan Schumaker if (unlikely(!p)) 51955a5ea0d4SBryan Schumaker goto out_overflow; 51965a5ea0d4SBryan Schumaker flavor->gss.qop4 = be32_to_cpup(p++); 51975a5ea0d4SBryan Schumaker flavor->gss.service = be32_to_cpup(p); 51985a5ea0d4SBryan Schumaker 51995a5ea0d4SBryan Schumaker return 0; 52005a5ea0d4SBryan Schumaker 52015a5ea0d4SBryan Schumaker out_overflow: 52025a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52035a5ea0d4SBryan Schumaker return -EIO; 52045a5ea0d4SBryan Schumaker out_err: 52055a5ea0d4SBryan Schumaker return -EINVAL; 52065a5ea0d4SBryan Schumaker } 52075a5ea0d4SBryan Schumaker 52085a5ea0d4SBryan Schumaker static int decode_secinfo(struct xdr_stream *xdr, struct nfs4_secinfo_res *res) 52095a5ea0d4SBryan Schumaker { 52105a5ea0d4SBryan Schumaker struct nfs4_secinfo_flavor *sec_flavor; 52115a5ea0d4SBryan Schumaker int status; 52125a5ea0d4SBryan Schumaker __be32 *p; 5213c3dfc280SBryan Schumaker int i, num_flavors; 52145a5ea0d4SBryan Schumaker 52155a5ea0d4SBryan Schumaker status = decode_op_hdr(xdr, OP_SECINFO); 5216613e901eSBryan Schumaker if (status) 5217613e901eSBryan Schumaker goto out; 52185a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52195a5ea0d4SBryan Schumaker if (unlikely(!p)) 52205a5ea0d4SBryan Schumaker goto out_overflow; 52215a5ea0d4SBryan Schumaker 5222c3dfc280SBryan Schumaker res->flavors->num_flavors = 0; 5223c3dfc280SBryan Schumaker num_flavors = be32_to_cpup(p); 5224c3dfc280SBryan Schumaker 5225c3dfc280SBryan Schumaker for (i = 0; i < num_flavors; i++) { 52265a5ea0d4SBryan Schumaker sec_flavor = &res->flavors->flavors[i]; 5227c3dfc280SBryan Schumaker if ((char *)&sec_flavor[1] - (char *)res->flavors > PAGE_SIZE) 52285a5ea0d4SBryan Schumaker break; 52295a5ea0d4SBryan Schumaker 52305a5ea0d4SBryan Schumaker p = xdr_inline_decode(xdr, 4); 52315a5ea0d4SBryan Schumaker if (unlikely(!p)) 52325a5ea0d4SBryan Schumaker goto out_overflow; 52335a5ea0d4SBryan Schumaker sec_flavor->flavor = be32_to_cpup(p); 52345a5ea0d4SBryan Schumaker 52355a5ea0d4SBryan Schumaker if (sec_flavor->flavor == RPC_AUTH_GSS) { 5236613e901eSBryan Schumaker status = decode_secinfo_gss(xdr, sec_flavor); 5237613e901eSBryan Schumaker if (status) 5238613e901eSBryan Schumaker goto out; 52395a5ea0d4SBryan Schumaker } 5240c3dfc280SBryan Schumaker res->flavors->num_flavors++; 52415a5ea0d4SBryan Schumaker } 52425a5ea0d4SBryan Schumaker 5243613e901eSBryan Schumaker out: 5244613e901eSBryan Schumaker return status; 52455a5ea0d4SBryan Schumaker out_overflow: 52465a5ea0d4SBryan Schumaker print_overflow_msg(__func__, xdr); 52475a5ea0d4SBryan Schumaker return -EIO; 52485a5ea0d4SBryan Schumaker } 52495a5ea0d4SBryan Schumaker 525099fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 525199fe60d0SBenny Halevy static int decode_exchange_id(struct xdr_stream *xdr, 525299fe60d0SBenny Halevy struct nfs41_exchange_id_res *res) 525399fe60d0SBenny Halevy { 525499fe60d0SBenny Halevy __be32 *p; 525599fe60d0SBenny Halevy uint32_t dummy; 52562460ba57SBenny Halevy char *dummy_str; 525799fe60d0SBenny Halevy int status; 525899fe60d0SBenny Halevy struct nfs_client *clp = res->client; 525999fe60d0SBenny Halevy 526099fe60d0SBenny Halevy status = decode_op_hdr(xdr, OP_EXCHANGE_ID); 526199fe60d0SBenny Halevy if (status) 526299fe60d0SBenny Halevy return status; 526399fe60d0SBenny Halevy 5264c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5265c0eae66eSBenny Halevy if (unlikely(!p)) 5266c0eae66eSBenny Halevy goto out_overflow; 5267114f64b5SAndy Adamson xdr_decode_hyper(p, &clp->cl_clientid); 5268c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 12); 5269c0eae66eSBenny Halevy if (unlikely(!p)) 5270c0eae66eSBenny Halevy goto out_overflow; 52716f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 52726f723f77SBenny Halevy clp->cl_exchange_flags = be32_to_cpup(p++); 527399fe60d0SBenny Halevy 527499fe60d0SBenny Halevy /* We ask for SP4_NONE */ 5275cccddf4fSBenny Halevy dummy = be32_to_cpup(p); 527699fe60d0SBenny Halevy if (dummy != SP4_NONE) 527799fe60d0SBenny Halevy return -EIO; 527899fe60d0SBenny Halevy 527999fe60d0SBenny Halevy /* Throw away minor_id */ 5280c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5281c0eae66eSBenny Halevy if (unlikely(!p)) 5282c0eae66eSBenny Halevy goto out_overflow; 528399fe60d0SBenny Halevy 528499fe60d0SBenny Halevy /* Throw away Major id */ 52852460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 52862460ba57SBenny Halevy if (unlikely(status)) 52872460ba57SBenny Halevy return status; 528899fe60d0SBenny Halevy 528978fe0f41SWeston Andros Adamson /* Save server_scope */ 52902460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 52912460ba57SBenny Halevy if (unlikely(status)) 52922460ba57SBenny Halevy return status; 529399fe60d0SBenny Halevy 529478fe0f41SWeston Andros Adamson if (unlikely(dummy > NFS4_OPAQUE_LIMIT)) 529578fe0f41SWeston Andros Adamson return -EIO; 529678fe0f41SWeston Andros Adamson 529778fe0f41SWeston Andros Adamson memcpy(res->server_scope->server_scope, dummy_str, dummy); 529878fe0f41SWeston Andros Adamson res->server_scope->server_scope_sz = dummy; 529978fe0f41SWeston Andros Adamson 530099fe60d0SBenny Halevy /* Throw away Implementation id array */ 53012460ba57SBenny Halevy status = decode_opaque_inline(xdr, &dummy, &dummy_str); 53022460ba57SBenny Halevy if (unlikely(status)) 53032460ba57SBenny Halevy return status; 530499fe60d0SBenny Halevy 530599fe60d0SBenny Halevy return 0; 5306c0eae66eSBenny Halevy out_overflow: 5307c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5308c0eae66eSBenny Halevy return -EIO; 530999fe60d0SBenny Halevy } 5310fc931582SAndy Adamson 5311fc931582SAndy Adamson static int decode_chan_attrs(struct xdr_stream *xdr, 5312fc931582SAndy Adamson struct nfs4_channel_attrs *attrs) 5313fc931582SAndy Adamson { 5314fc931582SAndy Adamson __be32 *p; 5315c9c30dd5SBenny Halevy u32 nr_attrs, val; 5316fc931582SAndy Adamson 5317c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 28); 5318c0eae66eSBenny Halevy if (unlikely(!p)) 5319c0eae66eSBenny Halevy goto out_overflow; 5320c9c30dd5SBenny Halevy val = be32_to_cpup(p++); /* headerpadsz */ 5321c9c30dd5SBenny Halevy if (val) 5322c9c30dd5SBenny Halevy return -EINVAL; /* no support for header padding yet */ 53236f723f77SBenny Halevy attrs->max_rqst_sz = be32_to_cpup(p++); 53246f723f77SBenny Halevy attrs->max_resp_sz = be32_to_cpup(p++); 53256f723f77SBenny Halevy attrs->max_resp_sz_cached = be32_to_cpup(p++); 53266f723f77SBenny Halevy attrs->max_ops = be32_to_cpup(p++); 53276f723f77SBenny Halevy attrs->max_reqs = be32_to_cpup(p++); 5328cccddf4fSBenny Halevy nr_attrs = be32_to_cpup(p); 5329fc931582SAndy Adamson if (unlikely(nr_attrs > 1)) { 5330a030889aSWeston Andros Adamson printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs " 5331a030889aSWeston Andros Adamson "count %u\n", __func__, nr_attrs); 5332fc931582SAndy Adamson return -EINVAL; 5333fc931582SAndy Adamson } 5334c0eae66eSBenny Halevy if (nr_attrs == 1) { 5335c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 4); /* skip rdma_attrs */ 5336c0eae66eSBenny Halevy if (unlikely(!p)) 5337c0eae66eSBenny Halevy goto out_overflow; 5338c0eae66eSBenny Halevy } 5339fc931582SAndy Adamson return 0; 5340c0eae66eSBenny Halevy out_overflow: 5341c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5342c0eae66eSBenny Halevy return -EIO; 5343fc931582SAndy Adamson } 5344fc931582SAndy Adamson 5345e78291e4SBenny Halevy static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) 5346e78291e4SBenny Halevy { 5347e78291e4SBenny Halevy return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); 5348fc931582SAndy Adamson } 5349fc931582SAndy Adamson 5350fc931582SAndy Adamson static int decode_create_session(struct xdr_stream *xdr, 5351fc931582SAndy Adamson struct nfs41_create_session_res *res) 5352fc931582SAndy Adamson { 5353fc931582SAndy Adamson __be32 *p; 5354fc931582SAndy Adamson int status; 5355fc931582SAndy Adamson struct nfs_client *clp = res->client; 5356fc931582SAndy Adamson struct nfs4_session *session = clp->cl_session; 5357fc931582SAndy Adamson 5358fc931582SAndy Adamson status = decode_op_hdr(xdr, OP_CREATE_SESSION); 5359e78291e4SBenny Halevy if (!status) 5360e78291e4SBenny Halevy status = decode_sessionid(xdr, &session->sess_id); 5361e78291e4SBenny Halevy if (unlikely(status)) 5362fc931582SAndy Adamson return status; 5363fc931582SAndy Adamson 5364fc931582SAndy Adamson /* seqid, flags */ 5365c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 8); 5366c0eae66eSBenny Halevy if (unlikely(!p)) 5367c0eae66eSBenny Halevy goto out_overflow; 53686f723f77SBenny Halevy clp->cl_seqid = be32_to_cpup(p++); 5369cccddf4fSBenny Halevy session->flags = be32_to_cpup(p); 5370fc931582SAndy Adamson 5371fc931582SAndy Adamson /* Channel attributes */ 5372fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->fc_attrs); 5373fc931582SAndy Adamson if (!status) 5374fc931582SAndy Adamson status = decode_chan_attrs(xdr, &session->bc_attrs); 5375fc931582SAndy Adamson return status; 5376c0eae66eSBenny Halevy out_overflow: 5377c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5378c0eae66eSBenny Halevy return -EIO; 5379fc931582SAndy Adamson } 53800f3e66c6SAndy Adamson 53810f3e66c6SAndy Adamson static int decode_destroy_session(struct xdr_stream *xdr, void *dummy) 53820f3e66c6SAndy Adamson { 53830f3e66c6SAndy Adamson return decode_op_hdr(xdr, OP_DESTROY_SESSION); 53840f3e66c6SAndy Adamson } 538518019753SRicardo Labiaga 538618019753SRicardo Labiaga static int decode_reclaim_complete(struct xdr_stream *xdr, void *dummy) 538718019753SRicardo Labiaga { 538818019753SRicardo Labiaga return decode_op_hdr(xdr, OP_RECLAIM_COMPLETE); 538918019753SRicardo Labiaga } 539099fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 539199fe60d0SBenny Halevy 53929b7b9fccSAndy Adamson static int decode_sequence(struct xdr_stream *xdr, 53939b7b9fccSAndy Adamson struct nfs4_sequence_res *res, 53949b7b9fccSAndy Adamson struct rpc_rqst *rqstp) 53959b7b9fccSAndy Adamson { 53969b7b9fccSAndy Adamson #if defined(CONFIG_NFS_V4_1) 5397fc01cea9SAndy Adamson struct nfs4_sessionid id; 5398fc01cea9SAndy Adamson u32 dummy; 5399fc01cea9SAndy Adamson int status; 5400fc01cea9SAndy Adamson __be32 *p; 5401fc01cea9SAndy Adamson 54029b7b9fccSAndy Adamson if (!res->sr_session) 54039b7b9fccSAndy Adamson return 0; 54049b7b9fccSAndy Adamson 5405fc01cea9SAndy Adamson status = decode_op_hdr(xdr, OP_SEQUENCE); 5406e78291e4SBenny Halevy if (!status) 5407e78291e4SBenny Halevy status = decode_sessionid(xdr, &id); 5408e78291e4SBenny Halevy if (unlikely(status)) 5409fc01cea9SAndy Adamson goto out_err; 54109b7b9fccSAndy Adamson 5411fc01cea9SAndy Adamson /* 5412fc01cea9SAndy Adamson * If the server returns different values for sessionID, slotID or 5413fc01cea9SAndy Adamson * sequence number, the server is looney tunes. 5414fc01cea9SAndy Adamson */ 5415fdcb4577STrond Myklebust status = -EREMOTEIO; 5416fc01cea9SAndy Adamson 5417fc01cea9SAndy Adamson if (memcmp(id.data, res->sr_session->sess_id.data, 5418fc01cea9SAndy Adamson NFS4_MAX_SESSIONID_LEN)) { 5419fc01cea9SAndy Adamson dprintk("%s Invalid session id\n", __func__); 5420fc01cea9SAndy Adamson goto out_err; 5421fc01cea9SAndy Adamson } 5422e78291e4SBenny Halevy 5423c0eae66eSBenny Halevy p = xdr_inline_decode(xdr, 20); 5424c0eae66eSBenny Halevy if (unlikely(!p)) 5425c0eae66eSBenny Halevy goto out_overflow; 5426e78291e4SBenny Halevy 5427fc01cea9SAndy Adamson /* seqid */ 54286f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5429dfb4f309SBenny Halevy if (dummy != res->sr_slot->seq_nr) { 5430fc01cea9SAndy Adamson dprintk("%s Invalid sequence number\n", __func__); 5431fc01cea9SAndy Adamson goto out_err; 5432fc01cea9SAndy Adamson } 5433fc01cea9SAndy Adamson /* slot id */ 54346f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5435dfb4f309SBenny Halevy if (dummy != res->sr_slot - res->sr_session->fc_slot_table.slots) { 5436fc01cea9SAndy Adamson dprintk("%s Invalid slot id\n", __func__); 5437fc01cea9SAndy Adamson goto out_err; 5438fc01cea9SAndy Adamson } 5439fc01cea9SAndy Adamson /* highest slot id - currently not processed */ 54406f723f77SBenny Halevy dummy = be32_to_cpup(p++); 5441fc01cea9SAndy Adamson /* target highest slot id - currently not processed */ 54426f723f77SBenny Halevy dummy = be32_to_cpup(p++); 54430629e370SAlexandros Batsakis /* result flags */ 54440629e370SAlexandros Batsakis res->sr_status_flags = be32_to_cpup(p); 5445fc01cea9SAndy Adamson status = 0; 5446fc01cea9SAndy Adamson out_err: 5447fc01cea9SAndy Adamson res->sr_status = status; 5448fc01cea9SAndy Adamson return status; 5449c0eae66eSBenny Halevy out_overflow: 5450c0eae66eSBenny Halevy print_overflow_msg(__func__, xdr); 5451c0eae66eSBenny Halevy status = -EIO; 5452c0eae66eSBenny Halevy goto out_err; 5453fc01cea9SAndy Adamson #else /* CONFIG_NFS_V4_1 */ 54549b7b9fccSAndy Adamson return 0; 5455fc01cea9SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 54569b7b9fccSAndy Adamson } 54579b7b9fccSAndy Adamson 5458b1f69b75SAndy Adamson #if defined(CONFIG_NFS_V4_1) 54597f11d8d3SAndy Adamson /* 54607f11d8d3SAndy Adamson * TODO: Need to handle case when EOF != true; 54617f11d8d3SAndy Adamson */ 54627f11d8d3SAndy Adamson static int decode_getdevicelist(struct xdr_stream *xdr, 54637f11d8d3SAndy Adamson struct pnfs_devicelist *res) 54647f11d8d3SAndy Adamson { 54657f11d8d3SAndy Adamson __be32 *p; 54667f11d8d3SAndy Adamson int status, i; 54677f11d8d3SAndy Adamson struct nfs_writeverf verftemp; 54687f11d8d3SAndy Adamson 54697f11d8d3SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICELIST); 54707f11d8d3SAndy Adamson if (status) 54717f11d8d3SAndy Adamson return status; 54727f11d8d3SAndy Adamson 54737f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 8 + 8 + 4); 54747f11d8d3SAndy Adamson if (unlikely(!p)) 54757f11d8d3SAndy Adamson goto out_overflow; 54767f11d8d3SAndy Adamson 54777f11d8d3SAndy Adamson /* TODO: Skip cookie for now */ 54787f11d8d3SAndy Adamson p += 2; 54797f11d8d3SAndy Adamson 54807f11d8d3SAndy Adamson /* Read verifier */ 54817f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, verftemp.verifier, 8); 54827f11d8d3SAndy Adamson 54837f11d8d3SAndy Adamson res->num_devs = be32_to_cpup(p); 54847f11d8d3SAndy Adamson 54857f11d8d3SAndy Adamson dprintk("%s: num_dev %d\n", __func__, res->num_devs); 54867f11d8d3SAndy Adamson 54877f11d8d3SAndy Adamson if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) { 5488a030889aSWeston Andros Adamson printk(KERN_ERR "NFS: %s too many result dev_num %u\n", 54897f11d8d3SAndy Adamson __func__, res->num_devs); 54907f11d8d3SAndy Adamson return -EIO; 54917f11d8d3SAndy Adamson } 54927f11d8d3SAndy Adamson 54937f11d8d3SAndy Adamson p = xdr_inline_decode(xdr, 54947f11d8d3SAndy Adamson res->num_devs * NFS4_DEVICEID4_SIZE + 4); 54957f11d8d3SAndy Adamson if (unlikely(!p)) 54967f11d8d3SAndy Adamson goto out_overflow; 54977f11d8d3SAndy Adamson for (i = 0; i < res->num_devs; i++) 54987f11d8d3SAndy Adamson p = xdr_decode_opaque_fixed(p, res->dev_id[i].data, 54997f11d8d3SAndy Adamson NFS4_DEVICEID4_SIZE); 55007f11d8d3SAndy Adamson res->eof = be32_to_cpup(p); 55017f11d8d3SAndy Adamson return 0; 55027f11d8d3SAndy Adamson out_overflow: 55037f11d8d3SAndy Adamson print_overflow_msg(__func__, xdr); 55047f11d8d3SAndy Adamson return -EIO; 55057f11d8d3SAndy Adamson } 5506b1f69b75SAndy Adamson 5507b1f69b75SAndy Adamson static int decode_getdeviceinfo(struct xdr_stream *xdr, 5508b1f69b75SAndy Adamson struct pnfs_device *pdev) 5509b1f69b75SAndy Adamson { 5510b1f69b75SAndy Adamson __be32 *p; 5511b1f69b75SAndy Adamson uint32_t len, type; 5512b1f69b75SAndy Adamson int status; 5513b1f69b75SAndy Adamson 5514b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_GETDEVICEINFO); 5515b1f69b75SAndy Adamson if (status) { 5516b1f69b75SAndy Adamson if (status == -ETOOSMALL) { 5517b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5518b1f69b75SAndy Adamson if (unlikely(!p)) 5519b1f69b75SAndy Adamson goto out_overflow; 5520b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5521b1f69b75SAndy Adamson dprintk("%s: Min count too small. mincnt = %u\n", 5522b1f69b75SAndy Adamson __func__, pdev->mincount); 5523b1f69b75SAndy Adamson } 5524b1f69b75SAndy Adamson return status; 5525b1f69b75SAndy Adamson } 5526b1f69b75SAndy Adamson 5527b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8); 5528b1f69b75SAndy Adamson if (unlikely(!p)) 5529b1f69b75SAndy Adamson goto out_overflow; 5530b1f69b75SAndy Adamson type = be32_to_cpup(p++); 5531b1f69b75SAndy Adamson if (type != pdev->layout_type) { 5532b1f69b75SAndy Adamson dprintk("%s: layout mismatch req: %u pdev: %u\n", 5533b1f69b75SAndy Adamson __func__, pdev->layout_type, type); 5534b1f69b75SAndy Adamson return -EINVAL; 5535b1f69b75SAndy Adamson } 5536b1f69b75SAndy Adamson /* 5537b1f69b75SAndy Adamson * Get the length of the opaque device_addr4. xdr_read_pages places 5538b1f69b75SAndy Adamson * the opaque device_addr4 in the xdr_buf->pages (pnfs_device->pages) 5539b1f69b75SAndy Adamson * and places the remaining xdr data in xdr_buf->tail 5540b1f69b75SAndy Adamson */ 5541b1f69b75SAndy Adamson pdev->mincount = be32_to_cpup(p); 5542b1f69b75SAndy Adamson xdr_read_pages(xdr, pdev->mincount); /* include space for the length */ 5543b1f69b75SAndy Adamson 5544b1f69b75SAndy Adamson /* Parse notification bitmap, verifying that it is zero. */ 5545b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4); 5546b1f69b75SAndy Adamson if (unlikely(!p)) 5547b1f69b75SAndy Adamson goto out_overflow; 5548b1f69b75SAndy Adamson len = be32_to_cpup(p); 5549b1f69b75SAndy Adamson if (len) { 5550ead00597SChuck Lever uint32_t i; 5551b1f69b75SAndy Adamson 5552b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 4 * len); 5553b1f69b75SAndy Adamson if (unlikely(!p)) 5554b1f69b75SAndy Adamson goto out_overflow; 5555b1f69b75SAndy Adamson for (i = 0; i < len; i++, p++) { 5556b1f69b75SAndy Adamson if (be32_to_cpup(p)) { 5557b1f69b75SAndy Adamson dprintk("%s: notifications not supported\n", 5558b1f69b75SAndy Adamson __func__); 5559b1f69b75SAndy Adamson return -EIO; 5560b1f69b75SAndy Adamson } 5561b1f69b75SAndy Adamson } 5562b1f69b75SAndy Adamson } 5563b1f69b75SAndy Adamson return 0; 5564b1f69b75SAndy Adamson out_overflow: 5565b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5566b1f69b75SAndy Adamson return -EIO; 5567b1f69b75SAndy Adamson } 5568b1f69b75SAndy Adamson 5569b1f69b75SAndy Adamson static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req, 5570b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 5571b1f69b75SAndy Adamson { 5572b1f69b75SAndy Adamson __be32 *p; 5573b1f69b75SAndy Adamson int status; 5574b1f69b75SAndy Adamson u32 layout_count; 557535124a09SWeston Andros Adamson struct xdr_buf *rcvbuf = &req->rq_rcv_buf; 557635124a09SWeston Andros Adamson struct kvec *iov = rcvbuf->head; 557735124a09SWeston Andros Adamson u32 hdrlen, recvd; 5578b1f69b75SAndy Adamson 5579b1f69b75SAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTGET); 5580b1f69b75SAndy Adamson if (status) 5581b1f69b75SAndy Adamson return status; 5582b1f69b75SAndy Adamson p = xdr_inline_decode(xdr, 8 + NFS4_STATEID_SIZE); 5583b1f69b75SAndy Adamson if (unlikely(!p)) 5584b1f69b75SAndy Adamson goto out_overflow; 5585b1f69b75SAndy Adamson res->return_on_close = be32_to_cpup(p++); 5586b1f69b75SAndy Adamson p = xdr_decode_opaque_fixed(p, res->stateid.data, NFS4_STATEID_SIZE); 5587b1f69b75SAndy Adamson layout_count = be32_to_cpup(p); 5588b1f69b75SAndy Adamson if (!layout_count) { 5589b1f69b75SAndy Adamson dprintk("%s: server responded with empty layout array\n", 5590b1f69b75SAndy Adamson __func__); 5591b1f69b75SAndy Adamson return -EINVAL; 5592b1f69b75SAndy Adamson } 5593b1f69b75SAndy Adamson 559435124a09SWeston Andros Adamson p = xdr_inline_decode(xdr, 28); 5595b1f69b75SAndy Adamson if (unlikely(!p)) 5596b1f69b75SAndy Adamson goto out_overflow; 5597b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.offset); 5598b1f69b75SAndy Adamson p = xdr_decode_hyper(p, &res->range.length); 5599b1f69b75SAndy Adamson res->range.iomode = be32_to_cpup(p++); 5600b1f69b75SAndy Adamson res->type = be32_to_cpup(p++); 560135124a09SWeston Andros Adamson res->layoutp->len = be32_to_cpup(p); 5602b1f69b75SAndy Adamson 5603b1f69b75SAndy Adamson dprintk("%s roff:%lu rlen:%lu riomode:%d, lo_type:0x%x, lo.len:%d\n", 5604b1f69b75SAndy Adamson __func__, 5605b1f69b75SAndy Adamson (unsigned long)res->range.offset, 5606b1f69b75SAndy Adamson (unsigned long)res->range.length, 5607b1f69b75SAndy Adamson res->range.iomode, 5608b1f69b75SAndy Adamson res->type, 560935124a09SWeston Andros Adamson res->layoutp->len); 5610b1f69b75SAndy Adamson 561135124a09SWeston Andros Adamson hdrlen = (u8 *) xdr->p - (u8 *) iov->iov_base; 561235124a09SWeston Andros Adamson recvd = req->rq_rcv_buf.len - hdrlen; 561335124a09SWeston Andros Adamson if (res->layoutp->len > recvd) { 561435124a09SWeston Andros Adamson dprintk("NFS: server cheating in layoutget reply: " 561535124a09SWeston Andros Adamson "layout len %u > recvd %u\n", 561635124a09SWeston Andros Adamson res->layoutp->len, recvd); 561735124a09SWeston Andros Adamson return -EINVAL; 561835124a09SWeston Andros Adamson } 561935124a09SWeston Andros Adamson 562035124a09SWeston Andros Adamson xdr_read_pages(xdr, res->layoutp->len); 5621b1f69b75SAndy Adamson 5622b1f69b75SAndy Adamson if (layout_count > 1) { 5623b1f69b75SAndy Adamson /* We only handle a length one array at the moment. Any 5624b1f69b75SAndy Adamson * further entries are just ignored. Note that this means 5625b1f69b75SAndy Adamson * the client may see a response that is less than the 5626b1f69b75SAndy Adamson * minimum it requested. 5627b1f69b75SAndy Adamson */ 5628b1f69b75SAndy Adamson dprintk("%s: server responded with %d layouts, dropping tail\n", 5629b1f69b75SAndy Adamson __func__, layout_count); 5630b1f69b75SAndy Adamson } 5631b1f69b75SAndy Adamson 5632b1f69b75SAndy Adamson return 0; 5633b1f69b75SAndy Adamson out_overflow: 5634b1f69b75SAndy Adamson print_overflow_msg(__func__, xdr); 5635b1f69b75SAndy Adamson return -EIO; 5636b1f69b75SAndy Adamson } 5637863a3c6cSAndy Adamson 5638cbe82603SBenny Halevy static int decode_layoutreturn(struct xdr_stream *xdr, 5639cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 5640cbe82603SBenny Halevy { 5641cbe82603SBenny Halevy __be32 *p; 5642cbe82603SBenny Halevy int status; 5643cbe82603SBenny Halevy 5644cbe82603SBenny Halevy status = decode_op_hdr(xdr, OP_LAYOUTRETURN); 5645cbe82603SBenny Halevy if (status) 5646cbe82603SBenny Halevy return status; 5647cbe82603SBenny Halevy p = xdr_inline_decode(xdr, 4); 5648cbe82603SBenny Halevy if (unlikely(!p)) 5649cbe82603SBenny Halevy goto out_overflow; 5650cbe82603SBenny Halevy res->lrs_present = be32_to_cpup(p); 5651cbe82603SBenny Halevy if (res->lrs_present) 5652cbe82603SBenny Halevy status = decode_stateid(xdr, &res->stateid); 5653cbe82603SBenny Halevy return status; 5654cbe82603SBenny Halevy out_overflow: 5655cbe82603SBenny Halevy print_overflow_msg(__func__, xdr); 5656cbe82603SBenny Halevy return -EIO; 5657cbe82603SBenny Halevy } 5658cbe82603SBenny Halevy 5659863a3c6cSAndy Adamson static int decode_layoutcommit(struct xdr_stream *xdr, 5660863a3c6cSAndy Adamson struct rpc_rqst *req, 5661863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 5662863a3c6cSAndy Adamson { 5663863a3c6cSAndy Adamson __be32 *p; 5664863a3c6cSAndy Adamson __u32 sizechanged; 5665863a3c6cSAndy Adamson int status; 5666863a3c6cSAndy Adamson 5667863a3c6cSAndy Adamson status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT); 5668db29c089SAndy Adamson res->status = status; 5669863a3c6cSAndy Adamson if (status) 5670863a3c6cSAndy Adamson return status; 5671863a3c6cSAndy Adamson 5672863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 4); 5673863a3c6cSAndy Adamson if (unlikely(!p)) 5674863a3c6cSAndy Adamson goto out_overflow; 5675863a3c6cSAndy Adamson sizechanged = be32_to_cpup(p); 5676863a3c6cSAndy Adamson 5677863a3c6cSAndy Adamson if (sizechanged) { 5678863a3c6cSAndy Adamson /* throw away new size */ 5679863a3c6cSAndy Adamson p = xdr_inline_decode(xdr, 8); 5680863a3c6cSAndy Adamson if (unlikely(!p)) 5681863a3c6cSAndy Adamson goto out_overflow; 5682863a3c6cSAndy Adamson } 5683863a3c6cSAndy Adamson return 0; 5684863a3c6cSAndy Adamson out_overflow: 5685863a3c6cSAndy Adamson print_overflow_msg(__func__, xdr); 5686863a3c6cSAndy Adamson return -EIO; 5687863a3c6cSAndy Adamson } 56887d974794SBryan Schumaker 56897d974794SBryan Schumaker static int decode_test_stateid(struct xdr_stream *xdr, 56907d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 56917d974794SBryan Schumaker { 56927d974794SBryan Schumaker __be32 *p; 56937d974794SBryan Schumaker int status; 56947d974794SBryan Schumaker int num_res; 56957d974794SBryan Schumaker 56967d974794SBryan Schumaker status = decode_op_hdr(xdr, OP_TEST_STATEID); 56977d974794SBryan Schumaker if (status) 56987d974794SBryan Schumaker return status; 56997d974794SBryan Schumaker 57007d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 57017d974794SBryan Schumaker if (unlikely(!p)) 57027d974794SBryan Schumaker goto out_overflow; 57037d974794SBryan Schumaker num_res = be32_to_cpup(p++); 57047d974794SBryan Schumaker if (num_res != 1) 57057d974794SBryan Schumaker goto out; 57067d974794SBryan Schumaker 57077d974794SBryan Schumaker p = xdr_inline_decode(xdr, 4); 57087d974794SBryan Schumaker if (unlikely(!p)) 57097d974794SBryan Schumaker goto out_overflow; 57107d974794SBryan Schumaker res->status = be32_to_cpup(p++); 57111cab0652SBryan Schumaker 57121cab0652SBryan Schumaker return status; 57137d974794SBryan Schumaker out_overflow: 57147d974794SBryan Schumaker print_overflow_msg(__func__, xdr); 57157d974794SBryan Schumaker out: 57167d974794SBryan Schumaker return -EIO; 57177d974794SBryan Schumaker } 57189aeda35fSBryan Schumaker 57199aeda35fSBryan Schumaker static int decode_free_stateid(struct xdr_stream *xdr, 57209aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 57219aeda35fSBryan Schumaker { 57229aeda35fSBryan Schumaker __be32 *p; 57239aeda35fSBryan Schumaker int status; 57249aeda35fSBryan Schumaker 57259aeda35fSBryan Schumaker status = decode_op_hdr(xdr, OP_FREE_STATEID); 57269aeda35fSBryan Schumaker if (status) 57279aeda35fSBryan Schumaker return status; 57289aeda35fSBryan Schumaker 57299aeda35fSBryan Schumaker p = xdr_inline_decode(xdr, 4); 57309aeda35fSBryan Schumaker if (unlikely(!p)) 57319aeda35fSBryan Schumaker goto out_overflow; 57329aeda35fSBryan Schumaker res->status = be32_to_cpup(p++); 57339aeda35fSBryan Schumaker return res->status; 57349aeda35fSBryan Schumaker out_overflow: 57359aeda35fSBryan Schumaker print_overflow_msg(__func__, xdr); 57369aeda35fSBryan Schumaker return -EIO; 57379aeda35fSBryan Schumaker } 5738b1f69b75SAndy Adamson #endif /* CONFIG_NFS_V4_1 */ 5739b1f69b75SAndy Adamson 57401da177e4SLinus Torvalds /* 574149c2559eSBenny Halevy * END OF "GENERIC" DECODE ROUTINES. 574249c2559eSBenny Halevy */ 574349c2559eSBenny Halevy 574449c2559eSBenny Halevy /* 57451da177e4SLinus Torvalds * Decode OPEN_DOWNGRADE response 57461da177e4SLinus Torvalds */ 5747bf269551SChuck Lever static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, 5748bf269551SChuck Lever struct xdr_stream *xdr, 5749bf269551SChuck Lever struct nfs_closeres *res) 57501da177e4SLinus Torvalds { 57511da177e4SLinus Torvalds struct compound_hdr hdr; 57521da177e4SLinus Torvalds int status; 57531da177e4SLinus Torvalds 5754bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57551da177e4SLinus Torvalds if (status) 57561da177e4SLinus Torvalds goto out; 5757bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57589b7b9fccSAndy Adamson if (status) 57599b7b9fccSAndy Adamson goto out; 5760bf269551SChuck Lever status = decode_putfh(xdr); 57611da177e4SLinus Torvalds if (status) 57621da177e4SLinus Torvalds goto out; 5763bf269551SChuck Lever status = decode_open_downgrade(xdr, res); 5764516a6af6STrond Myklebust if (status != 0) 5765516a6af6STrond Myklebust goto out; 57666926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 57671da177e4SLinus Torvalds out: 57681da177e4SLinus Torvalds return status; 57691da177e4SLinus Torvalds } 57701da177e4SLinus Torvalds 57711da177e4SLinus Torvalds /* 57721da177e4SLinus Torvalds * Decode ACCESS response 57731da177e4SLinus Torvalds */ 5774bf269551SChuck Lever static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5775bf269551SChuck Lever struct nfs4_accessres *res) 57761da177e4SLinus Torvalds { 57771da177e4SLinus Torvalds struct compound_hdr hdr; 57781da177e4SLinus Torvalds int status; 57791da177e4SLinus Torvalds 5780bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 57819b7b9fccSAndy Adamson if (status) 57829b7b9fccSAndy Adamson goto out; 5783bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 57849b7b9fccSAndy Adamson if (status) 57851da177e4SLinus Torvalds goto out; 5786bf269551SChuck Lever status = decode_putfh(xdr); 578776b32999STrond Myklebust if (status != 0) 578876b32999STrond Myklebust goto out; 5789bf269551SChuck Lever status = decode_access(xdr, res); 579076b32999STrond Myklebust if (status != 0) 579176b32999STrond Myklebust goto out; 57926926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 57931da177e4SLinus Torvalds out: 57941da177e4SLinus Torvalds return status; 57951da177e4SLinus Torvalds } 57961da177e4SLinus Torvalds 57971da177e4SLinus Torvalds /* 57981da177e4SLinus Torvalds * Decode LOOKUP response 57991da177e4SLinus Torvalds */ 5800bf269551SChuck Lever static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5801bf269551SChuck Lever struct nfs4_lookup_res *res) 58021da177e4SLinus Torvalds { 58031da177e4SLinus Torvalds struct compound_hdr hdr; 58041da177e4SLinus Torvalds int status; 58051da177e4SLinus Torvalds 5806bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58079b7b9fccSAndy Adamson if (status) 58089b7b9fccSAndy Adamson goto out; 5809bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58109b7b9fccSAndy Adamson if (status) 58111da177e4SLinus Torvalds goto out; 5812bf269551SChuck Lever status = decode_putfh(xdr); 5813bf269551SChuck Lever if (status) 58141da177e4SLinus Torvalds goto out; 5815bf269551SChuck Lever status = decode_lookup(xdr); 5816bf269551SChuck Lever if (status) 58171da177e4SLinus Torvalds goto out; 5818bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5819bf269551SChuck Lever if (status) 58201da177e4SLinus Torvalds goto out; 58216926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 58221da177e4SLinus Torvalds out: 58231da177e4SLinus Torvalds return status; 58241da177e4SLinus Torvalds } 58251da177e4SLinus Torvalds 58261da177e4SLinus Torvalds /* 58271da177e4SLinus Torvalds * Decode LOOKUP_ROOT response 58281da177e4SLinus Torvalds */ 5829bf269551SChuck Lever static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp, 5830bf269551SChuck Lever struct xdr_stream *xdr, 5831bf269551SChuck Lever struct nfs4_lookup_res *res) 58321da177e4SLinus Torvalds { 58331da177e4SLinus Torvalds struct compound_hdr hdr; 58341da177e4SLinus Torvalds int status; 58351da177e4SLinus Torvalds 5836bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58379b7b9fccSAndy Adamson if (status) 58389b7b9fccSAndy Adamson goto out; 5839bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58409b7b9fccSAndy Adamson if (status) 58411da177e4SLinus Torvalds goto out; 5842bf269551SChuck Lever status = decode_putrootfh(xdr); 5843bf269551SChuck Lever if (status) 58441da177e4SLinus Torvalds goto out; 5845bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5846bf269551SChuck Lever if (status == 0) 58476926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 58481da177e4SLinus Torvalds out: 58491da177e4SLinus Torvalds return status; 58501da177e4SLinus Torvalds } 58511da177e4SLinus Torvalds 58521da177e4SLinus Torvalds /* 58531da177e4SLinus Torvalds * Decode REMOVE response 58541da177e4SLinus Torvalds */ 5855bf269551SChuck Lever static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5856bf269551SChuck Lever struct nfs_removeres *res) 58571da177e4SLinus Torvalds { 58581da177e4SLinus Torvalds struct compound_hdr hdr; 58591da177e4SLinus Torvalds int status; 58601da177e4SLinus Torvalds 5861bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58629b7b9fccSAndy Adamson if (status) 58639b7b9fccSAndy Adamson goto out; 5864bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58659b7b9fccSAndy Adamson if (status) 58661da177e4SLinus Torvalds goto out; 5867bf269551SChuck Lever status = decode_putfh(xdr); 5868bf269551SChuck Lever if (status) 586916e42959STrond Myklebust goto out; 5870bf269551SChuck Lever status = decode_remove(xdr, &res->cinfo); 5871bf269551SChuck Lever if (status) 587216e42959STrond Myklebust goto out; 58736926afd1STrond Myklebust decode_getfattr(xdr, res->dir_attr, res->server); 58741da177e4SLinus Torvalds out: 58751da177e4SLinus Torvalds return status; 58761da177e4SLinus Torvalds } 58771da177e4SLinus Torvalds 58781da177e4SLinus Torvalds /* 58791da177e4SLinus Torvalds * Decode RENAME response 58801da177e4SLinus Torvalds */ 5881bf269551SChuck Lever static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5882bf269551SChuck Lever struct nfs_renameres *res) 58831da177e4SLinus Torvalds { 58841da177e4SLinus Torvalds struct compound_hdr hdr; 58851da177e4SLinus Torvalds int status; 58861da177e4SLinus Torvalds 5887bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 58889b7b9fccSAndy Adamson if (status) 58899b7b9fccSAndy Adamson goto out; 5890bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 58919b7b9fccSAndy Adamson if (status) 58921da177e4SLinus Torvalds goto out; 5893bf269551SChuck Lever status = decode_putfh(xdr); 5894bf269551SChuck Lever if (status) 58951da177e4SLinus Torvalds goto out; 5896bf269551SChuck Lever status = decode_savefh(xdr); 5897bf269551SChuck Lever if (status) 58981da177e4SLinus Torvalds goto out; 5899bf269551SChuck Lever status = decode_putfh(xdr); 5900bf269551SChuck Lever if (status) 59011da177e4SLinus Torvalds goto out; 5902bf269551SChuck Lever status = decode_rename(xdr, &res->old_cinfo, &res->new_cinfo); 5903bf269551SChuck Lever if (status) 59046caf2c82STrond Myklebust goto out; 59056caf2c82STrond Myklebust /* Current FH is target directory */ 59066926afd1STrond Myklebust if (decode_getfattr(xdr, res->new_fattr, res->server)) 59076caf2c82STrond Myklebust goto out; 5908bf269551SChuck Lever status = decode_restorefh(xdr); 5909bf269551SChuck Lever if (status) 59106caf2c82STrond Myklebust goto out; 59116926afd1STrond Myklebust decode_getfattr(xdr, res->old_fattr, res->server); 59121da177e4SLinus Torvalds out: 59131da177e4SLinus Torvalds return status; 59141da177e4SLinus Torvalds } 59151da177e4SLinus Torvalds 59161da177e4SLinus Torvalds /* 59171da177e4SLinus Torvalds * Decode LINK response 59181da177e4SLinus Torvalds */ 5919bf269551SChuck Lever static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5920bf269551SChuck Lever struct nfs4_link_res *res) 59211da177e4SLinus Torvalds { 59221da177e4SLinus Torvalds struct compound_hdr hdr; 59231da177e4SLinus Torvalds int status; 59241da177e4SLinus Torvalds 5925bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59269b7b9fccSAndy Adamson if (status) 59279b7b9fccSAndy Adamson goto out; 5928bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59299b7b9fccSAndy Adamson if (status) 59301da177e4SLinus Torvalds goto out; 5931bf269551SChuck Lever status = decode_putfh(xdr); 5932bf269551SChuck Lever if (status) 59331da177e4SLinus Torvalds goto out; 5934bf269551SChuck Lever status = decode_savefh(xdr); 5935bf269551SChuck Lever if (status) 59361da177e4SLinus Torvalds goto out; 5937bf269551SChuck Lever status = decode_putfh(xdr); 5938bf269551SChuck Lever if (status) 59391da177e4SLinus Torvalds goto out; 5940bf269551SChuck Lever status = decode_link(xdr, &res->cinfo); 5941bf269551SChuck Lever if (status) 594291ba2eeeSTrond Myklebust goto out; 594391ba2eeeSTrond Myklebust /* 594491ba2eeeSTrond Myklebust * Note order: OP_LINK leaves the directory as the current 594591ba2eeeSTrond Myklebust * filehandle. 594691ba2eeeSTrond Myklebust */ 59476926afd1STrond Myklebust if (decode_getfattr(xdr, res->dir_attr, res->server)) 594891ba2eeeSTrond Myklebust goto out; 5949bf269551SChuck Lever status = decode_restorefh(xdr); 5950bf269551SChuck Lever if (status) 595191ba2eeeSTrond Myklebust goto out; 59526926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 59531da177e4SLinus Torvalds out: 59541da177e4SLinus Torvalds return status; 59551da177e4SLinus Torvalds } 59561da177e4SLinus Torvalds 59571da177e4SLinus Torvalds /* 59581da177e4SLinus Torvalds * Decode CREATE response 59591da177e4SLinus Torvalds */ 5960bf269551SChuck Lever static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5961bf269551SChuck Lever struct nfs4_create_res *res) 59621da177e4SLinus Torvalds { 59631da177e4SLinus Torvalds struct compound_hdr hdr; 59641da177e4SLinus Torvalds int status; 59651da177e4SLinus Torvalds 5966bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 59679b7b9fccSAndy Adamson if (status) 59689b7b9fccSAndy Adamson goto out; 5969bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 59709b7b9fccSAndy Adamson if (status) 59711da177e4SLinus Torvalds goto out; 5972bf269551SChuck Lever status = decode_putfh(xdr); 5973bf269551SChuck Lever if (status) 59741da177e4SLinus Torvalds goto out; 5975bf269551SChuck Lever status = decode_savefh(xdr); 5976bf269551SChuck Lever if (status) 597756ae19f3STrond Myklebust goto out; 5978bf269551SChuck Lever status = decode_create(xdr, &res->dir_cinfo); 5979bf269551SChuck Lever if (status) 59801da177e4SLinus Torvalds goto out; 5981bf269551SChuck Lever status = decode_getfh(xdr, res->fh); 5982bf269551SChuck Lever if (status) 59831da177e4SLinus Torvalds goto out; 59846926afd1STrond Myklebust if (decode_getfattr(xdr, res->fattr, res->server)) 598556ae19f3STrond Myklebust goto out; 5986bf269551SChuck Lever status = decode_restorefh(xdr); 5987bf269551SChuck Lever if (status) 598856ae19f3STrond Myklebust goto out; 59896926afd1STrond Myklebust decode_getfattr(xdr, res->dir_fattr, res->server); 59901da177e4SLinus Torvalds out: 59911da177e4SLinus Torvalds return status; 59921da177e4SLinus Torvalds } 59931da177e4SLinus Torvalds 59941da177e4SLinus Torvalds /* 59951da177e4SLinus Torvalds * Decode SYMLINK response 59961da177e4SLinus Torvalds */ 5997bf269551SChuck Lever static int nfs4_xdr_dec_symlink(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 5998bf269551SChuck Lever struct nfs4_create_res *res) 59991da177e4SLinus Torvalds { 6000bf269551SChuck Lever return nfs4_xdr_dec_create(rqstp, xdr, res); 60011da177e4SLinus Torvalds } 60021da177e4SLinus Torvalds 60031da177e4SLinus Torvalds /* 60041da177e4SLinus Torvalds * Decode GETATTR response 60051da177e4SLinus Torvalds */ 6006bf269551SChuck Lever static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6007bf269551SChuck Lever struct nfs4_getattr_res *res) 60081da177e4SLinus Torvalds { 60091da177e4SLinus Torvalds struct compound_hdr hdr; 60101da177e4SLinus Torvalds int status; 60111da177e4SLinus Torvalds 6012bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 60131da177e4SLinus Torvalds if (status) 60141da177e4SLinus Torvalds goto out; 6015bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60169b7b9fccSAndy Adamson if (status) 60179b7b9fccSAndy Adamson goto out; 6018bf269551SChuck Lever status = decode_putfh(xdr); 60191da177e4SLinus Torvalds if (status) 60201da177e4SLinus Torvalds goto out; 60216926afd1STrond Myklebust status = decode_getfattr(xdr, res->fattr, res->server); 60221da177e4SLinus Torvalds out: 60231da177e4SLinus Torvalds return status; 60241da177e4SLinus Torvalds } 60251da177e4SLinus Torvalds 602623ec6965SJ. Bruce Fields /* 602723ec6965SJ. Bruce Fields * Encode an SETACL request 602823ec6965SJ. Bruce Fields */ 60299f06c719SChuck Lever static void nfs4_xdr_enc_setacl(struct rpc_rqst *req, struct xdr_stream *xdr, 60309f06c719SChuck Lever struct nfs_setaclargs *args) 603123ec6965SJ. Bruce Fields { 603223ec6965SJ. Bruce Fields struct compound_hdr hdr = { 603366cc0429SBenny Halevy .minorversion = nfs4_xdr_minorversion(&args->seq_args), 603423ec6965SJ. Bruce Fields }; 603523ec6965SJ. Bruce Fields 60369f06c719SChuck Lever encode_compound_hdr(xdr, req, &hdr); 60379f06c719SChuck Lever encode_sequence(xdr, &args->seq_args, &hdr); 60389f06c719SChuck Lever encode_putfh(xdr, args->fh, &hdr); 60399f06c719SChuck Lever encode_setacl(xdr, args, &hdr); 6040d017931cSAndy Adamson encode_nops(&hdr); 604123ec6965SJ. Bruce Fields } 604205d564feSAndy Adamson 604323ec6965SJ. Bruce Fields /* 604423ec6965SJ. Bruce Fields * Decode SETACL response 604523ec6965SJ. Bruce Fields */ 604623ec6965SJ. Bruce Fields static int 6047bf269551SChuck Lever nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 604873c403a9SBenny Halevy struct nfs_setaclres *res) 604923ec6965SJ. Bruce Fields { 605023ec6965SJ. Bruce Fields struct compound_hdr hdr; 605123ec6965SJ. Bruce Fields int status; 605223ec6965SJ. Bruce Fields 6053bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 605423ec6965SJ. Bruce Fields if (status) 605523ec6965SJ. Bruce Fields goto out; 6056bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60579b7b9fccSAndy Adamson if (status) 60589b7b9fccSAndy Adamson goto out; 6059bf269551SChuck Lever status = decode_putfh(xdr); 606023ec6965SJ. Bruce Fields if (status) 606123ec6965SJ. Bruce Fields goto out; 6062bf269551SChuck Lever status = decode_setattr(xdr); 606323ec6965SJ. Bruce Fields out: 606423ec6965SJ. Bruce Fields return status; 606523ec6965SJ. Bruce Fields } 60661da177e4SLinus Torvalds 60671da177e4SLinus Torvalds /* 6068029d105eSJ. Bruce Fields * Decode GETACL response 6069029d105eSJ. Bruce Fields */ 6070029d105eSJ. Bruce Fields static int 6071bf269551SChuck Lever nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6072663c79b3SBenny Halevy struct nfs_getaclres *res) 6073029d105eSJ. Bruce Fields { 6074029d105eSJ. Bruce Fields struct compound_hdr hdr; 6075029d105eSJ. Bruce Fields int status; 6076029d105eSJ. Bruce Fields 6077bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6078029d105eSJ. Bruce Fields if (status) 6079029d105eSJ. Bruce Fields goto out; 6080bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 60819b7b9fccSAndy Adamson if (status) 60829b7b9fccSAndy Adamson goto out; 6083bf269551SChuck Lever status = decode_putfh(xdr); 6084029d105eSJ. Bruce Fields if (status) 6085029d105eSJ. Bruce Fields goto out; 6086bf118a34SAndy Adamson status = decode_getacl(xdr, rqstp, res); 6087029d105eSJ. Bruce Fields 6088029d105eSJ. Bruce Fields out: 6089029d105eSJ. Bruce Fields return status; 6090029d105eSJ. Bruce Fields } 6091029d105eSJ. Bruce Fields 6092029d105eSJ. Bruce Fields /* 60931da177e4SLinus Torvalds * Decode CLOSE response 60941da177e4SLinus Torvalds */ 6095bf269551SChuck Lever static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6096bf269551SChuck Lever struct nfs_closeres *res) 60971da177e4SLinus Torvalds { 60981da177e4SLinus Torvalds struct compound_hdr hdr; 60991da177e4SLinus Torvalds int status; 61001da177e4SLinus Torvalds 6101bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61021da177e4SLinus Torvalds if (status) 61031da177e4SLinus Torvalds goto out; 6104bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61059b7b9fccSAndy Adamson if (status) 61069b7b9fccSAndy Adamson goto out; 6107bf269551SChuck Lever status = decode_putfh(xdr); 61081da177e4SLinus Torvalds if (status) 61091da177e4SLinus Torvalds goto out; 6110bf269551SChuck Lever status = decode_close(xdr, res); 6111516a6af6STrond Myklebust if (status != 0) 6112516a6af6STrond Myklebust goto out; 6113516a6af6STrond Myklebust /* 6114516a6af6STrond Myklebust * Note: Server may do delete on close for this file 6115516a6af6STrond Myklebust * in which case the getattr call will fail with 6116516a6af6STrond Myklebust * an ESTALE error. Shouldn't be a problem, 6117516a6af6STrond Myklebust * though, since fattr->valid will remain unset. 6118516a6af6STrond Myklebust */ 61196926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 61201da177e4SLinus Torvalds out: 61211da177e4SLinus Torvalds return status; 61221da177e4SLinus Torvalds } 61231da177e4SLinus Torvalds 61241da177e4SLinus Torvalds /* 61251da177e4SLinus Torvalds * Decode OPEN response 61261da177e4SLinus Torvalds */ 6127bf269551SChuck Lever static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6128bf269551SChuck Lever struct nfs_openres *res) 61291da177e4SLinus Torvalds { 61301da177e4SLinus Torvalds struct compound_hdr hdr; 61311da177e4SLinus Torvalds int status; 61321da177e4SLinus Torvalds 6133bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61341da177e4SLinus Torvalds if (status) 61351da177e4SLinus Torvalds goto out; 6136bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61379b7b9fccSAndy Adamson if (status) 61389b7b9fccSAndy Adamson goto out; 6139bf269551SChuck Lever status = decode_putfh(xdr); 61401da177e4SLinus Torvalds if (status) 61411da177e4SLinus Torvalds goto out; 6142bf269551SChuck Lever status = decode_savefh(xdr); 614356ae19f3STrond Myklebust if (status) 614456ae19f3STrond Myklebust goto out; 6145bf269551SChuck Lever status = decode_open(xdr, res); 61461da177e4SLinus Torvalds if (status) 61471da177e4SLinus Torvalds goto out; 6148bf269551SChuck Lever if (decode_getfh(xdr, &res->fh) != 0) 61491da177e4SLinus Torvalds goto out; 61506926afd1STrond Myklebust if (decode_getfattr(xdr, res->f_attr, res->server) != 0) 615156ae19f3STrond Myklebust goto out; 6152bf269551SChuck Lever if (decode_restorefh(xdr) != 0) 615356ae19f3STrond Myklebust goto out; 61546926afd1STrond Myklebust decode_getfattr(xdr, res->dir_attr, res->server); 61551da177e4SLinus Torvalds out: 61561da177e4SLinus Torvalds return status; 61571da177e4SLinus Torvalds } 61581da177e4SLinus Torvalds 61591da177e4SLinus Torvalds /* 61601da177e4SLinus Torvalds * Decode OPEN_CONFIRM response 61611da177e4SLinus Torvalds */ 6162bf269551SChuck Lever static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, 6163bf269551SChuck Lever struct xdr_stream *xdr, 6164bf269551SChuck Lever struct nfs_open_confirmres *res) 61651da177e4SLinus Torvalds { 61661da177e4SLinus Torvalds struct compound_hdr hdr; 61671da177e4SLinus Torvalds int status; 61681da177e4SLinus Torvalds 6169bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61701da177e4SLinus Torvalds if (status) 61711da177e4SLinus Torvalds goto out; 6172bf269551SChuck Lever status = decode_putfh(xdr); 61731da177e4SLinus Torvalds if (status) 61741da177e4SLinus Torvalds goto out; 6175bf269551SChuck Lever status = decode_open_confirm(xdr, res); 61761da177e4SLinus Torvalds out: 61771da177e4SLinus Torvalds return status; 61781da177e4SLinus Torvalds } 61791da177e4SLinus Torvalds 61801da177e4SLinus Torvalds /* 61811da177e4SLinus Torvalds * Decode OPEN response 61821da177e4SLinus Torvalds */ 6183bf269551SChuck Lever static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, 6184bf269551SChuck Lever struct xdr_stream *xdr, 6185bf269551SChuck Lever struct nfs_openres *res) 61861da177e4SLinus Torvalds { 61871da177e4SLinus Torvalds struct compound_hdr hdr; 61881da177e4SLinus Torvalds int status; 61891da177e4SLinus Torvalds 6190bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 61911da177e4SLinus Torvalds if (status) 61921da177e4SLinus Torvalds goto out; 6193bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 61949b7b9fccSAndy Adamson if (status) 61959b7b9fccSAndy Adamson goto out; 6196bf269551SChuck Lever status = decode_putfh(xdr); 61971da177e4SLinus Torvalds if (status) 61981da177e4SLinus Torvalds goto out; 6199bf269551SChuck Lever status = decode_open(xdr, res); 6200864472e9STrond Myklebust if (status) 6201864472e9STrond Myklebust goto out; 62026926afd1STrond Myklebust decode_getfattr(xdr, res->f_attr, res->server); 62031da177e4SLinus Torvalds out: 62041da177e4SLinus Torvalds return status; 62051da177e4SLinus Torvalds } 62061da177e4SLinus Torvalds 62071da177e4SLinus Torvalds /* 62081da177e4SLinus Torvalds * Decode SETATTR response 62091da177e4SLinus Torvalds */ 6210bf269551SChuck Lever static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, 6211bf269551SChuck Lever struct xdr_stream *xdr, 6212bf269551SChuck Lever struct nfs_setattrres *res) 62131da177e4SLinus Torvalds { 62141da177e4SLinus Torvalds struct compound_hdr hdr; 62151da177e4SLinus Torvalds int status; 62161da177e4SLinus Torvalds 6217bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62181da177e4SLinus Torvalds if (status) 62191da177e4SLinus Torvalds goto out; 6220bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62219b7b9fccSAndy Adamson if (status) 62229b7b9fccSAndy Adamson goto out; 6223bf269551SChuck Lever status = decode_putfh(xdr); 62241da177e4SLinus Torvalds if (status) 62251da177e4SLinus Torvalds goto out; 6226bf269551SChuck Lever status = decode_setattr(xdr); 62271da177e4SLinus Torvalds if (status) 62281da177e4SLinus Torvalds goto out; 62296926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 62301da177e4SLinus Torvalds out: 62311da177e4SLinus Torvalds return status; 62321da177e4SLinus Torvalds } 62331da177e4SLinus Torvalds 62341da177e4SLinus Torvalds /* 62351da177e4SLinus Torvalds * Decode LOCK response 62361da177e4SLinus Torvalds */ 6237bf269551SChuck Lever static int nfs4_xdr_dec_lock(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6238bf269551SChuck Lever struct nfs_lock_res *res) 62391da177e4SLinus Torvalds { 62401da177e4SLinus Torvalds struct compound_hdr hdr; 62411da177e4SLinus Torvalds int status; 62421da177e4SLinus Torvalds 6243bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62441da177e4SLinus Torvalds if (status) 62451da177e4SLinus Torvalds goto out; 6246bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62479b7b9fccSAndy Adamson if (status) 62489b7b9fccSAndy Adamson goto out; 6249bf269551SChuck Lever status = decode_putfh(xdr); 62501da177e4SLinus Torvalds if (status) 62511da177e4SLinus Torvalds goto out; 6252bf269551SChuck Lever status = decode_lock(xdr, res); 62531da177e4SLinus Torvalds out: 62541da177e4SLinus Torvalds return status; 62551da177e4SLinus Torvalds } 62561da177e4SLinus Torvalds 62571da177e4SLinus Torvalds /* 62581da177e4SLinus Torvalds * Decode LOCKT response 62591da177e4SLinus Torvalds */ 6260bf269551SChuck Lever static int nfs4_xdr_dec_lockt(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6261bf269551SChuck Lever struct nfs_lockt_res *res) 62621da177e4SLinus Torvalds { 62631da177e4SLinus Torvalds struct compound_hdr hdr; 62641da177e4SLinus Torvalds int status; 62651da177e4SLinus Torvalds 6266bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62671da177e4SLinus Torvalds if (status) 62681da177e4SLinus Torvalds goto out; 6269bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62709b7b9fccSAndy Adamson if (status) 62719b7b9fccSAndy Adamson goto out; 6272bf269551SChuck Lever status = decode_putfh(xdr); 62731da177e4SLinus Torvalds if (status) 62741da177e4SLinus Torvalds goto out; 6275bf269551SChuck Lever status = decode_lockt(xdr, res); 62761da177e4SLinus Torvalds out: 62771da177e4SLinus Torvalds return status; 62781da177e4SLinus Torvalds } 62791da177e4SLinus Torvalds 62801da177e4SLinus Torvalds /* 62811da177e4SLinus Torvalds * Decode LOCKU response 62821da177e4SLinus Torvalds */ 6283bf269551SChuck Lever static int nfs4_xdr_dec_locku(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6284bf269551SChuck Lever struct nfs_locku_res *res) 62851da177e4SLinus Torvalds { 62861da177e4SLinus Torvalds struct compound_hdr hdr; 62871da177e4SLinus Torvalds int status; 62881da177e4SLinus Torvalds 6289bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 62901da177e4SLinus Torvalds if (status) 62911da177e4SLinus Torvalds goto out; 6292bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 62939b7b9fccSAndy Adamson if (status) 62949b7b9fccSAndy Adamson goto out; 6295bf269551SChuck Lever status = decode_putfh(xdr); 62961da177e4SLinus Torvalds if (status) 62971da177e4SLinus Torvalds goto out; 6298bf269551SChuck Lever status = decode_locku(xdr, res); 62991da177e4SLinus Torvalds out: 63001da177e4SLinus Torvalds return status; 63011da177e4SLinus Torvalds } 63021da177e4SLinus Torvalds 6303bf269551SChuck Lever static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, 6304bf269551SChuck Lever struct xdr_stream *xdr, void *dummy) 6305d3c7b7ccSTrond Myklebust { 6306d3c7b7ccSTrond Myklebust struct compound_hdr hdr; 6307d3c7b7ccSTrond Myklebust int status; 6308d3c7b7ccSTrond Myklebust 6309bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6310d3c7b7ccSTrond Myklebust if (!status) 6311bf269551SChuck Lever status = decode_release_lockowner(xdr); 6312d3c7b7ccSTrond Myklebust return status; 6313d3c7b7ccSTrond Myklebust } 6314d3c7b7ccSTrond Myklebust 63151da177e4SLinus Torvalds /* 63161da177e4SLinus Torvalds * Decode READLINK response 63171da177e4SLinus Torvalds */ 6318bf269551SChuck Lever static int nfs4_xdr_dec_readlink(struct rpc_rqst *rqstp, 6319bf269551SChuck Lever struct xdr_stream *xdr, 6320f50c7000SBenny Halevy struct nfs4_readlink_res *res) 63211da177e4SLinus Torvalds { 63221da177e4SLinus Torvalds struct compound_hdr hdr; 63231da177e4SLinus Torvalds int status; 63241da177e4SLinus Torvalds 6325bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63261da177e4SLinus Torvalds if (status) 63271da177e4SLinus Torvalds goto out; 6328bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63299b7b9fccSAndy Adamson if (status) 63309b7b9fccSAndy Adamson goto out; 6331bf269551SChuck Lever status = decode_putfh(xdr); 63321da177e4SLinus Torvalds if (status) 63331da177e4SLinus Torvalds goto out; 6334bf269551SChuck Lever status = decode_readlink(xdr, rqstp); 63351da177e4SLinus Torvalds out: 63361da177e4SLinus Torvalds return status; 63371da177e4SLinus Torvalds } 63381da177e4SLinus Torvalds 63391da177e4SLinus Torvalds /* 63401da177e4SLinus Torvalds * Decode READDIR response 63411da177e4SLinus Torvalds */ 6342bf269551SChuck Lever static int nfs4_xdr_dec_readdir(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6343bf269551SChuck Lever struct nfs4_readdir_res *res) 63441da177e4SLinus Torvalds { 63451da177e4SLinus Torvalds struct compound_hdr hdr; 63461da177e4SLinus Torvalds int status; 63471da177e4SLinus Torvalds 6348bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63491da177e4SLinus Torvalds if (status) 63501da177e4SLinus Torvalds goto out; 6351bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63529b7b9fccSAndy Adamson if (status) 63539b7b9fccSAndy Adamson goto out; 6354bf269551SChuck Lever status = decode_putfh(xdr); 63551da177e4SLinus Torvalds if (status) 63561da177e4SLinus Torvalds goto out; 6357bf269551SChuck Lever status = decode_readdir(xdr, rqstp, res); 63581da177e4SLinus Torvalds out: 63591da177e4SLinus Torvalds return status; 63601da177e4SLinus Torvalds } 63611da177e4SLinus Torvalds 63621da177e4SLinus Torvalds /* 63631da177e4SLinus Torvalds * Decode Read response 63641da177e4SLinus Torvalds */ 6365bf269551SChuck Lever static int nfs4_xdr_dec_read(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6366bf269551SChuck Lever struct nfs_readres *res) 63671da177e4SLinus Torvalds { 63681da177e4SLinus Torvalds struct compound_hdr hdr; 63691da177e4SLinus Torvalds int status; 63701da177e4SLinus Torvalds 6371bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63721da177e4SLinus Torvalds if (status) 63731da177e4SLinus Torvalds goto out; 6374bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 63759b7b9fccSAndy Adamson if (status) 63769b7b9fccSAndy Adamson goto out; 6377bf269551SChuck Lever status = decode_putfh(xdr); 63781da177e4SLinus Torvalds if (status) 63791da177e4SLinus Torvalds goto out; 6380bf269551SChuck Lever status = decode_read(xdr, rqstp, res); 63811da177e4SLinus Torvalds if (!status) 63821da177e4SLinus Torvalds status = res->count; 63831da177e4SLinus Torvalds out: 63841da177e4SLinus Torvalds return status; 63851da177e4SLinus Torvalds } 63861da177e4SLinus Torvalds 63871da177e4SLinus Torvalds /* 63881da177e4SLinus Torvalds * Decode WRITE response 63891da177e4SLinus Torvalds */ 6390bf269551SChuck Lever static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6391bf269551SChuck Lever struct nfs_writeres *res) 63921da177e4SLinus Torvalds { 63931da177e4SLinus Torvalds struct compound_hdr hdr; 63941da177e4SLinus Torvalds int status; 63951da177e4SLinus Torvalds 6396bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 63971da177e4SLinus Torvalds if (status) 63981da177e4SLinus Torvalds goto out; 6399bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64009b7b9fccSAndy Adamson if (status) 64019b7b9fccSAndy Adamson goto out; 6402bf269551SChuck Lever status = decode_putfh(xdr); 64031da177e4SLinus Torvalds if (status) 64041da177e4SLinus Torvalds goto out; 6405bf269551SChuck Lever status = decode_write(xdr, res); 64064f9838c7STrond Myklebust if (status) 64074f9838c7STrond Myklebust goto out; 64087ffd1064SFred Isaman if (res->fattr) 64096926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64101da177e4SLinus Torvalds if (!status) 64111da177e4SLinus Torvalds status = res->count; 64121da177e4SLinus Torvalds out: 64131da177e4SLinus Torvalds return status; 64141da177e4SLinus Torvalds } 64151da177e4SLinus Torvalds 64161da177e4SLinus Torvalds /* 64171da177e4SLinus Torvalds * Decode COMMIT response 64181da177e4SLinus Torvalds */ 6419bf269551SChuck Lever static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6420bf269551SChuck Lever struct nfs_writeres *res) 64211da177e4SLinus Torvalds { 64221da177e4SLinus Torvalds struct compound_hdr hdr; 64231da177e4SLinus Torvalds int status; 64241da177e4SLinus Torvalds 6425bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64261da177e4SLinus Torvalds if (status) 64271da177e4SLinus Torvalds goto out; 6428bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 64299b7b9fccSAndy Adamson if (status) 64309b7b9fccSAndy Adamson goto out; 6431bf269551SChuck Lever status = decode_putfh(xdr); 64321da177e4SLinus Torvalds if (status) 64331da177e4SLinus Torvalds goto out; 6434bf269551SChuck Lever status = decode_commit(xdr, res); 64354f9838c7STrond Myklebust if (status) 64364f9838c7STrond Myklebust goto out; 6437988b6dceSFred Isaman if (res->fattr) 64386926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 64391da177e4SLinus Torvalds out: 64401da177e4SLinus Torvalds return status; 64411da177e4SLinus Torvalds } 64421da177e4SLinus Torvalds 64431da177e4SLinus Torvalds /* 64448b173218SRicardo Labiaga * Decode FSINFO response 64451da177e4SLinus Torvalds */ 6446bf269551SChuck Lever static int nfs4_xdr_dec_fsinfo(struct rpc_rqst *req, struct xdr_stream *xdr, 64473dda5e43SBenny Halevy struct nfs4_fsinfo_res *res) 64481da177e4SLinus Torvalds { 64491da177e4SLinus Torvalds struct compound_hdr hdr; 64501da177e4SLinus Torvalds int status; 64511da177e4SLinus Torvalds 6452bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64531da177e4SLinus Torvalds if (!status) 6454bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 64559b7b9fccSAndy Adamson if (!status) 6456bf269551SChuck Lever status = decode_putfh(xdr); 64571da177e4SLinus Torvalds if (!status) 6458bf269551SChuck Lever status = decode_fsinfo(xdr, res->fsinfo); 64591da177e4SLinus Torvalds return status; 64601da177e4SLinus Torvalds } 64611da177e4SLinus Torvalds 64621da177e4SLinus Torvalds /* 64638b173218SRicardo Labiaga * Decode PATHCONF response 64641da177e4SLinus Torvalds */ 6465bf269551SChuck Lever static int nfs4_xdr_dec_pathconf(struct rpc_rqst *req, struct xdr_stream *xdr, 6466d45b2989SBenny Halevy struct nfs4_pathconf_res *res) 64671da177e4SLinus Torvalds { 64681da177e4SLinus Torvalds struct compound_hdr hdr; 64691da177e4SLinus Torvalds int status; 64701da177e4SLinus Torvalds 6471bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64721da177e4SLinus Torvalds if (!status) 6473bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 64749b7b9fccSAndy Adamson if (!status) 6475bf269551SChuck Lever status = decode_putfh(xdr); 64761da177e4SLinus Torvalds if (!status) 6477bf269551SChuck Lever status = decode_pathconf(xdr, res->pathconf); 64781da177e4SLinus Torvalds return status; 64791da177e4SLinus Torvalds } 64801da177e4SLinus Torvalds 64811da177e4SLinus Torvalds /* 64828b173218SRicardo Labiaga * Decode STATFS response 64831da177e4SLinus Torvalds */ 6484bf269551SChuck Lever static int nfs4_xdr_dec_statfs(struct rpc_rqst *req, struct xdr_stream *xdr, 648524ad148aSBenny Halevy struct nfs4_statfs_res *res) 64861da177e4SLinus Torvalds { 64871da177e4SLinus Torvalds struct compound_hdr hdr; 64881da177e4SLinus Torvalds int status; 64891da177e4SLinus Torvalds 6490bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 64911da177e4SLinus Torvalds if (!status) 6492bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 64939b7b9fccSAndy Adamson if (!status) 6494bf269551SChuck Lever status = decode_putfh(xdr); 64951da177e4SLinus Torvalds if (!status) 6496bf269551SChuck Lever status = decode_statfs(xdr, res->fsstat); 64971da177e4SLinus Torvalds return status; 64981da177e4SLinus Torvalds } 64991da177e4SLinus Torvalds 65001da177e4SLinus Torvalds /* 65018b173218SRicardo Labiaga * Decode GETATTR_BITMAP response 65021da177e4SLinus Torvalds */ 6503bf269551SChuck Lever static int nfs4_xdr_dec_server_caps(struct rpc_rqst *req, 6504bf269551SChuck Lever struct xdr_stream *xdr, 6505bf269551SChuck Lever struct nfs4_server_caps_res *res) 65061da177e4SLinus Torvalds { 65071da177e4SLinus Torvalds struct compound_hdr hdr; 65081da177e4SLinus Torvalds int status; 65091da177e4SLinus Torvalds 6510bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65119b7b9fccSAndy Adamson if (status) 65129b7b9fccSAndy Adamson goto out; 6513bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 65149b7b9fccSAndy Adamson if (status) 65151da177e4SLinus Torvalds goto out; 6516bf269551SChuck Lever status = decode_putfh(xdr); 6517bf269551SChuck Lever if (status) 65181da177e4SLinus Torvalds goto out; 6519bf269551SChuck Lever status = decode_server_caps(xdr, res); 65201da177e4SLinus Torvalds out: 65211da177e4SLinus Torvalds return status; 65221da177e4SLinus Torvalds } 65231da177e4SLinus Torvalds 65241da177e4SLinus Torvalds /* 65251da177e4SLinus Torvalds * Decode RENEW response 65261da177e4SLinus Torvalds */ 6527bf269551SChuck Lever static int nfs4_xdr_dec_renew(struct rpc_rqst *rqstp, struct xdr_stream *xdr, 6528bf269551SChuck Lever void *__unused) 65291da177e4SLinus Torvalds { 65301da177e4SLinus Torvalds struct compound_hdr hdr; 65311da177e4SLinus Torvalds int status; 65321da177e4SLinus Torvalds 6533bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65341da177e4SLinus Torvalds if (!status) 6535bf269551SChuck Lever status = decode_renew(xdr); 65361da177e4SLinus Torvalds return status; 65371da177e4SLinus Torvalds } 65381da177e4SLinus Torvalds 65391da177e4SLinus Torvalds /* 65408b173218SRicardo Labiaga * Decode SETCLIENTID response 65411da177e4SLinus Torvalds */ 6542bf269551SChuck Lever static int nfs4_xdr_dec_setclientid(struct rpc_rqst *req, 6543bf269551SChuck Lever struct xdr_stream *xdr, 6544bb8b27e5STrond Myklebust struct nfs4_setclientid_res *res) 65451da177e4SLinus Torvalds { 65461da177e4SLinus Torvalds struct compound_hdr hdr; 65471da177e4SLinus Torvalds int status; 65481da177e4SLinus Torvalds 6549bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65501da177e4SLinus Torvalds if (!status) 6551bf269551SChuck Lever status = decode_setclientid(xdr, res); 65521da177e4SLinus Torvalds return status; 65531da177e4SLinus Torvalds } 65541da177e4SLinus Torvalds 65551da177e4SLinus Torvalds /* 65568b173218SRicardo Labiaga * Decode SETCLIENTID_CONFIRM response 65571da177e4SLinus Torvalds */ 6558bf269551SChuck Lever static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, 6559bf269551SChuck Lever struct xdr_stream *xdr, 6560bf269551SChuck Lever struct nfs_fsinfo *fsinfo) 65611da177e4SLinus Torvalds { 65621da177e4SLinus Torvalds struct compound_hdr hdr; 65631da177e4SLinus Torvalds int status; 65641da177e4SLinus Torvalds 6565bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65661da177e4SLinus Torvalds if (!status) 6567bf269551SChuck Lever status = decode_setclientid_confirm(xdr); 65681da177e4SLinus Torvalds if (!status) 6569bf269551SChuck Lever status = decode_putrootfh(xdr); 65701da177e4SLinus Torvalds if (!status) 6571bf269551SChuck Lever status = decode_fsinfo(xdr, fsinfo); 65721da177e4SLinus Torvalds return status; 65731da177e4SLinus Torvalds } 65741da177e4SLinus Torvalds 65751da177e4SLinus Torvalds /* 65768b173218SRicardo Labiaga * Decode DELEGRETURN response 65771da177e4SLinus Torvalds */ 6578bf269551SChuck Lever static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, 6579bf269551SChuck Lever struct xdr_stream *xdr, 6580bf269551SChuck Lever struct nfs4_delegreturnres *res) 65811da177e4SLinus Torvalds { 65821da177e4SLinus Torvalds struct compound_hdr hdr; 65831da177e4SLinus Torvalds int status; 65841da177e4SLinus Torvalds 6585bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 65869b7b9fccSAndy Adamson if (status) 65879b7b9fccSAndy Adamson goto out; 6588bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 65899b7b9fccSAndy Adamson if (status) 6590fa178f29STrond Myklebust goto out; 6591bf269551SChuck Lever status = decode_putfh(xdr); 6592fa178f29STrond Myklebust if (status != 0) 6593fa178f29STrond Myklebust goto out; 6594bf269551SChuck Lever status = decode_delegreturn(xdr); 6595556ae3bbSJeff Layton if (status != 0) 6596556ae3bbSJeff Layton goto out; 65976926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6598fa178f29STrond Myklebust out: 65991da177e4SLinus Torvalds return status; 66001da177e4SLinus Torvalds } 66011da177e4SLinus Torvalds 6602683b57b4STrond Myklebust /* 66038b173218SRicardo Labiaga * Decode FS_LOCATIONS response 6604683b57b4STrond Myklebust */ 6605bf269551SChuck Lever static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req, 6606bf269551SChuck Lever struct xdr_stream *xdr, 660722958463SBenny Halevy struct nfs4_fs_locations_res *res) 6608683b57b4STrond Myklebust { 6609683b57b4STrond Myklebust struct compound_hdr hdr; 6610683b57b4STrond Myklebust int status; 6611683b57b4STrond Myklebust 6612bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 66139b7b9fccSAndy Adamson if (status) 66149b7b9fccSAndy Adamson goto out; 6615bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, req); 66169b7b9fccSAndy Adamson if (status) 6617683b57b4STrond Myklebust goto out; 6618bf269551SChuck Lever status = decode_putfh(xdr); 6619bf269551SChuck Lever if (status) 6620683b57b4STrond Myklebust goto out; 6621bf269551SChuck Lever status = decode_lookup(xdr); 6622bf269551SChuck Lever if (status) 6623683b57b4STrond Myklebust goto out; 6624bf269551SChuck Lever xdr_enter_page(xdr, PAGE_SIZE); 66258b7e3f49STrond Myklebust status = decode_getfattr_generic(xdr, &res->fs_locations->fattr, 66268b7e3f49STrond Myklebust NULL, res->fs_locations, 66276926afd1STrond Myklebust res->fs_locations->server); 6628683b57b4STrond Myklebust out: 6629683b57b4STrond Myklebust return status; 6630683b57b4STrond Myklebust } 6631683b57b4STrond Myklebust 66325a5ea0d4SBryan Schumaker /* 66335a5ea0d4SBryan Schumaker * Decode SECINFO response 66345a5ea0d4SBryan Schumaker */ 66355a5ea0d4SBryan Schumaker static int nfs4_xdr_dec_secinfo(struct rpc_rqst *rqstp, 66365a5ea0d4SBryan Schumaker struct xdr_stream *xdr, 66375a5ea0d4SBryan Schumaker struct nfs4_secinfo_res *res) 66385a5ea0d4SBryan Schumaker { 66395a5ea0d4SBryan Schumaker struct compound_hdr hdr; 66405a5ea0d4SBryan Schumaker int status; 66415a5ea0d4SBryan Schumaker 66425a5ea0d4SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 66435a5ea0d4SBryan Schumaker if (status) 66445a5ea0d4SBryan Schumaker goto out; 66455a5ea0d4SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 66465a5ea0d4SBryan Schumaker if (status) 66475a5ea0d4SBryan Schumaker goto out; 66485a5ea0d4SBryan Schumaker status = decode_putfh(xdr); 66495a5ea0d4SBryan Schumaker if (status) 66505a5ea0d4SBryan Schumaker goto out; 66515a5ea0d4SBryan Schumaker status = decode_secinfo(xdr, res); 66525a5ea0d4SBryan Schumaker out: 66535a5ea0d4SBryan Schumaker return status; 66545a5ea0d4SBryan Schumaker } 66555a5ea0d4SBryan Schumaker 665699fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 665799fe60d0SBenny Halevy /* 66588b173218SRicardo Labiaga * Decode EXCHANGE_ID response 665999fe60d0SBenny Halevy */ 6660bf269551SChuck Lever static int nfs4_xdr_dec_exchange_id(struct rpc_rqst *rqstp, 6661bf269551SChuck Lever struct xdr_stream *xdr, 666299fe60d0SBenny Halevy void *res) 666399fe60d0SBenny Halevy { 666499fe60d0SBenny Halevy struct compound_hdr hdr; 666599fe60d0SBenny Halevy int status; 666699fe60d0SBenny Halevy 6667bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 666899fe60d0SBenny Halevy if (!status) 6669bf269551SChuck Lever status = decode_exchange_id(xdr, res); 667099fe60d0SBenny Halevy return status; 667199fe60d0SBenny Halevy } 66722050f0ccSAndy Adamson 66732050f0ccSAndy Adamson /* 66748b173218SRicardo Labiaga * Decode CREATE_SESSION response 6675fc931582SAndy Adamson */ 6676bf269551SChuck Lever static int nfs4_xdr_dec_create_session(struct rpc_rqst *rqstp, 6677bf269551SChuck Lever struct xdr_stream *xdr, 6678fc931582SAndy Adamson struct nfs41_create_session_res *res) 6679fc931582SAndy Adamson { 6680fc931582SAndy Adamson struct compound_hdr hdr; 6681fc931582SAndy Adamson int status; 6682fc931582SAndy Adamson 6683bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6684fc931582SAndy Adamson if (!status) 6685bf269551SChuck Lever status = decode_create_session(xdr, res); 6686fc931582SAndy Adamson return status; 6687fc931582SAndy Adamson } 6688fc931582SAndy Adamson 6689fc931582SAndy Adamson /* 66908b173218SRicardo Labiaga * Decode DESTROY_SESSION response 66910f3e66c6SAndy Adamson */ 6692bf269551SChuck Lever static int nfs4_xdr_dec_destroy_session(struct rpc_rqst *rqstp, 6693bf269551SChuck Lever struct xdr_stream *xdr, 6694bf269551SChuck Lever void *res) 66950f3e66c6SAndy Adamson { 66960f3e66c6SAndy Adamson struct compound_hdr hdr; 66970f3e66c6SAndy Adamson int status; 66980f3e66c6SAndy Adamson 6699bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67000f3e66c6SAndy Adamson if (!status) 6701bf269551SChuck Lever status = decode_destroy_session(xdr, res); 67020f3e66c6SAndy Adamson return status; 67030f3e66c6SAndy Adamson } 67040f3e66c6SAndy Adamson 67050f3e66c6SAndy Adamson /* 67068b173218SRicardo Labiaga * Decode SEQUENCE response 6707fc01cea9SAndy Adamson */ 6708bf269551SChuck Lever static int nfs4_xdr_dec_sequence(struct rpc_rqst *rqstp, 6709bf269551SChuck Lever struct xdr_stream *xdr, 6710fc01cea9SAndy Adamson struct nfs4_sequence_res *res) 6711fc01cea9SAndy Adamson { 6712fc01cea9SAndy Adamson struct compound_hdr hdr; 6713fc01cea9SAndy Adamson int status; 6714fc01cea9SAndy Adamson 6715bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6716fc01cea9SAndy Adamson if (!status) 6717bf269551SChuck Lever status = decode_sequence(xdr, res, rqstp); 6718fc01cea9SAndy Adamson return status; 6719fc01cea9SAndy Adamson } 6720fc01cea9SAndy Adamson 6721fc01cea9SAndy Adamson /* 67228b173218SRicardo Labiaga * Decode GET_LEASE_TIME response 67232050f0ccSAndy Adamson */ 6724bf269551SChuck Lever static int nfs4_xdr_dec_get_lease_time(struct rpc_rqst *rqstp, 6725bf269551SChuck Lever struct xdr_stream *xdr, 67262050f0ccSAndy Adamson struct nfs4_get_lease_time_res *res) 67272050f0ccSAndy Adamson { 67282050f0ccSAndy Adamson struct compound_hdr hdr; 67292050f0ccSAndy Adamson int status; 67302050f0ccSAndy Adamson 6731bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 67322050f0ccSAndy Adamson if (!status) 6733bf269551SChuck Lever status = decode_sequence(xdr, &res->lr_seq_res, rqstp); 67342050f0ccSAndy Adamson if (!status) 6735bf269551SChuck Lever status = decode_putrootfh(xdr); 67362050f0ccSAndy Adamson if (!status) 6737bf269551SChuck Lever status = decode_fsinfo(xdr, res->lr_fsinfo); 67382050f0ccSAndy Adamson return status; 67392050f0ccSAndy Adamson } 674018019753SRicardo Labiaga 674118019753SRicardo Labiaga /* 674218019753SRicardo Labiaga * Decode RECLAIM_COMPLETE response 674318019753SRicardo Labiaga */ 6744bf269551SChuck Lever static int nfs4_xdr_dec_reclaim_complete(struct rpc_rqst *rqstp, 6745bf269551SChuck Lever struct xdr_stream *xdr, 674618019753SRicardo Labiaga struct nfs41_reclaim_complete_res *res) 674718019753SRicardo Labiaga { 674818019753SRicardo Labiaga struct compound_hdr hdr; 674918019753SRicardo Labiaga int status; 675018019753SRicardo Labiaga 6751bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 675218019753SRicardo Labiaga if (!status) 6753bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 675418019753SRicardo Labiaga if (!status) 6755bf269551SChuck Lever status = decode_reclaim_complete(xdr, (void *)NULL); 675618019753SRicardo Labiaga return status; 675718019753SRicardo Labiaga } 6758b1f69b75SAndy Adamson 6759b1f69b75SAndy Adamson /* 67607f11d8d3SAndy Adamson * Decode GETDEVICELIST response 67617f11d8d3SAndy Adamson */ 67627f11d8d3SAndy Adamson static int nfs4_xdr_dec_getdevicelist(struct rpc_rqst *rqstp, 67637f11d8d3SAndy Adamson struct xdr_stream *xdr, 67647f11d8d3SAndy Adamson struct nfs4_getdevicelist_res *res) 67657f11d8d3SAndy Adamson { 67667f11d8d3SAndy Adamson struct compound_hdr hdr; 67677f11d8d3SAndy Adamson int status; 67687f11d8d3SAndy Adamson 67697f11d8d3SAndy Adamson dprintk("encoding getdevicelist!\n"); 67707f11d8d3SAndy Adamson 67717f11d8d3SAndy Adamson status = decode_compound_hdr(xdr, &hdr); 67727f11d8d3SAndy Adamson if (status != 0) 67737f11d8d3SAndy Adamson goto out; 67747f11d8d3SAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 67757f11d8d3SAndy Adamson if (status != 0) 67767f11d8d3SAndy Adamson goto out; 67777f11d8d3SAndy Adamson status = decode_putfh(xdr); 67787f11d8d3SAndy Adamson if (status != 0) 67797f11d8d3SAndy Adamson goto out; 67807f11d8d3SAndy Adamson status = decode_getdevicelist(xdr, res->devlist); 67817f11d8d3SAndy Adamson out: 67827f11d8d3SAndy Adamson return status; 67837f11d8d3SAndy Adamson } 67847f11d8d3SAndy Adamson 67857f11d8d3SAndy Adamson /* 6786b1f69b75SAndy Adamson * Decode GETDEVINFO response 6787b1f69b75SAndy Adamson */ 6788bf269551SChuck Lever static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, 6789bf269551SChuck Lever struct xdr_stream *xdr, 6790b1f69b75SAndy Adamson struct nfs4_getdeviceinfo_res *res) 6791b1f69b75SAndy Adamson { 6792b1f69b75SAndy Adamson struct compound_hdr hdr; 6793b1f69b75SAndy Adamson int status; 6794b1f69b75SAndy Adamson 6795bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6796b1f69b75SAndy Adamson if (status != 0) 6797b1f69b75SAndy Adamson goto out; 6798bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6799b1f69b75SAndy Adamson if (status != 0) 6800b1f69b75SAndy Adamson goto out; 6801bf269551SChuck Lever status = decode_getdeviceinfo(xdr, res->pdev); 6802b1f69b75SAndy Adamson out: 6803b1f69b75SAndy Adamson return status; 6804b1f69b75SAndy Adamson } 6805b1f69b75SAndy Adamson 6806b1f69b75SAndy Adamson /* 6807b1f69b75SAndy Adamson * Decode LAYOUTGET response 6808b1f69b75SAndy Adamson */ 6809bf269551SChuck Lever static int nfs4_xdr_dec_layoutget(struct rpc_rqst *rqstp, 6810bf269551SChuck Lever struct xdr_stream *xdr, 6811b1f69b75SAndy Adamson struct nfs4_layoutget_res *res) 6812b1f69b75SAndy Adamson { 6813b1f69b75SAndy Adamson struct compound_hdr hdr; 6814b1f69b75SAndy Adamson int status; 6815b1f69b75SAndy Adamson 6816bf269551SChuck Lever status = decode_compound_hdr(xdr, &hdr); 6817b1f69b75SAndy Adamson if (status) 6818b1f69b75SAndy Adamson goto out; 6819bf269551SChuck Lever status = decode_sequence(xdr, &res->seq_res, rqstp); 6820b1f69b75SAndy Adamson if (status) 6821b1f69b75SAndy Adamson goto out; 6822bf269551SChuck Lever status = decode_putfh(xdr); 6823b1f69b75SAndy Adamson if (status) 6824b1f69b75SAndy Adamson goto out; 6825bf269551SChuck Lever status = decode_layoutget(xdr, rqstp, res); 6826b1f69b75SAndy Adamson out: 6827b1f69b75SAndy Adamson return status; 6828b1f69b75SAndy Adamson } 6829863a3c6cSAndy Adamson 6830863a3c6cSAndy Adamson /* 6831cbe82603SBenny Halevy * Decode LAYOUTRETURN response 6832cbe82603SBenny Halevy */ 6833cbe82603SBenny Halevy static int nfs4_xdr_dec_layoutreturn(struct rpc_rqst *rqstp, 6834cbe82603SBenny Halevy struct xdr_stream *xdr, 6835cbe82603SBenny Halevy struct nfs4_layoutreturn_res *res) 6836cbe82603SBenny Halevy { 6837cbe82603SBenny Halevy struct compound_hdr hdr; 6838cbe82603SBenny Halevy int status; 6839cbe82603SBenny Halevy 6840cbe82603SBenny Halevy status = decode_compound_hdr(xdr, &hdr); 6841cbe82603SBenny Halevy if (status) 6842cbe82603SBenny Halevy goto out; 6843cbe82603SBenny Halevy status = decode_sequence(xdr, &res->seq_res, rqstp); 6844cbe82603SBenny Halevy if (status) 6845cbe82603SBenny Halevy goto out; 6846cbe82603SBenny Halevy status = decode_putfh(xdr); 6847cbe82603SBenny Halevy if (status) 6848cbe82603SBenny Halevy goto out; 6849cbe82603SBenny Halevy status = decode_layoutreturn(xdr, res); 6850cbe82603SBenny Halevy out: 6851cbe82603SBenny Halevy return status; 6852cbe82603SBenny Halevy } 6853cbe82603SBenny Halevy 6854cbe82603SBenny Halevy /* 6855863a3c6cSAndy Adamson * Decode LAYOUTCOMMIT response 6856863a3c6cSAndy Adamson */ 6857863a3c6cSAndy Adamson static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp, 6858863a3c6cSAndy Adamson struct xdr_stream *xdr, 6859863a3c6cSAndy Adamson struct nfs4_layoutcommit_res *res) 6860863a3c6cSAndy Adamson { 6861863a3c6cSAndy Adamson struct compound_hdr hdr; 6862863a3c6cSAndy Adamson int status; 6863863a3c6cSAndy Adamson 6864863a3c6cSAndy Adamson status = decode_compound_hdr(xdr, &hdr); 6865863a3c6cSAndy Adamson if (status) 6866863a3c6cSAndy Adamson goto out; 6867863a3c6cSAndy Adamson status = decode_sequence(xdr, &res->seq_res, rqstp); 6868863a3c6cSAndy Adamson if (status) 6869863a3c6cSAndy Adamson goto out; 6870863a3c6cSAndy Adamson status = decode_putfh(xdr); 6871863a3c6cSAndy Adamson if (status) 6872863a3c6cSAndy Adamson goto out; 6873863a3c6cSAndy Adamson status = decode_layoutcommit(xdr, rqstp, res); 6874863a3c6cSAndy Adamson if (status) 6875863a3c6cSAndy Adamson goto out; 68766926afd1STrond Myklebust decode_getfattr(xdr, res->fattr, res->server); 6877863a3c6cSAndy Adamson out: 6878863a3c6cSAndy Adamson return status; 6879863a3c6cSAndy Adamson } 6880fca78d6dSBryan Schumaker 6881fca78d6dSBryan Schumaker /* 6882fca78d6dSBryan Schumaker * Decode SECINFO_NO_NAME response 6883fca78d6dSBryan Schumaker */ 6884fca78d6dSBryan Schumaker static int nfs4_xdr_dec_secinfo_no_name(struct rpc_rqst *rqstp, 6885fca78d6dSBryan Schumaker struct xdr_stream *xdr, 6886fca78d6dSBryan Schumaker struct nfs4_secinfo_res *res) 6887fca78d6dSBryan Schumaker { 6888fca78d6dSBryan Schumaker struct compound_hdr hdr; 6889fca78d6dSBryan Schumaker int status; 6890fca78d6dSBryan Schumaker 6891fca78d6dSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 6892fca78d6dSBryan Schumaker if (status) 6893fca78d6dSBryan Schumaker goto out; 6894fca78d6dSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 6895fca78d6dSBryan Schumaker if (status) 6896fca78d6dSBryan Schumaker goto out; 6897fca78d6dSBryan Schumaker status = decode_putrootfh(xdr); 6898fca78d6dSBryan Schumaker if (status) 6899fca78d6dSBryan Schumaker goto out; 6900fca78d6dSBryan Schumaker status = decode_secinfo(xdr, res); 6901fca78d6dSBryan Schumaker out: 6902fca78d6dSBryan Schumaker return status; 6903fca78d6dSBryan Schumaker } 69047d974794SBryan Schumaker 69057d974794SBryan Schumaker /* 69067d974794SBryan Schumaker * Decode TEST_STATEID response 69077d974794SBryan Schumaker */ 69087d974794SBryan Schumaker static int nfs4_xdr_dec_test_stateid(struct rpc_rqst *rqstp, 69097d974794SBryan Schumaker struct xdr_stream *xdr, 69107d974794SBryan Schumaker struct nfs41_test_stateid_res *res) 69117d974794SBryan Schumaker { 69127d974794SBryan Schumaker struct compound_hdr hdr; 69137d974794SBryan Schumaker int status; 69147d974794SBryan Schumaker 69157d974794SBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69167d974794SBryan Schumaker if (status) 69177d974794SBryan Schumaker goto out; 69187d974794SBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69197d974794SBryan Schumaker if (status) 69207d974794SBryan Schumaker goto out; 69217d974794SBryan Schumaker status = decode_test_stateid(xdr, res); 69227d974794SBryan Schumaker out: 69237d974794SBryan Schumaker return status; 69247d974794SBryan Schumaker } 69259aeda35fSBryan Schumaker 69269aeda35fSBryan Schumaker /* 69279aeda35fSBryan Schumaker * Decode FREE_STATEID response 69289aeda35fSBryan Schumaker */ 69299aeda35fSBryan Schumaker static int nfs4_xdr_dec_free_stateid(struct rpc_rqst *rqstp, 69309aeda35fSBryan Schumaker struct xdr_stream *xdr, 69319aeda35fSBryan Schumaker struct nfs41_free_stateid_res *res) 69329aeda35fSBryan Schumaker { 69339aeda35fSBryan Schumaker struct compound_hdr hdr; 69349aeda35fSBryan Schumaker int status; 69359aeda35fSBryan Schumaker 69369aeda35fSBryan Schumaker status = decode_compound_hdr(xdr, &hdr); 69379aeda35fSBryan Schumaker if (status) 69389aeda35fSBryan Schumaker goto out; 69399aeda35fSBryan Schumaker status = decode_sequence(xdr, &res->seq_res, rqstp); 69409aeda35fSBryan Schumaker if (status) 69419aeda35fSBryan Schumaker goto out; 69429aeda35fSBryan Schumaker status = decode_free_stateid(xdr, res); 69439aeda35fSBryan Schumaker out: 69449aeda35fSBryan Schumaker return status; 69459aeda35fSBryan Schumaker } 694699fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 694799fe60d0SBenny Halevy 6948573c4e1eSChuck Lever /** 6949573c4e1eSChuck Lever * nfs4_decode_dirent - Decode a single NFSv4 directory entry stored in 6950573c4e1eSChuck Lever * the local page cache. 6951573c4e1eSChuck Lever * @xdr: XDR stream where entry resides 6952573c4e1eSChuck Lever * @entry: buffer to fill in with entry data 6953573c4e1eSChuck Lever * @plus: boolean indicating whether this should be a readdirplus entry 6954573c4e1eSChuck Lever * 6955573c4e1eSChuck Lever * Returns zero if successful, otherwise a negative errno value is 6956573c4e1eSChuck Lever * returned. 6957573c4e1eSChuck Lever * 6958573c4e1eSChuck Lever * This function is not invoked during READDIR reply decoding, but 6959573c4e1eSChuck Lever * rather whenever an application invokes the getdents(2) system call 6960573c4e1eSChuck Lever * on a directory already in our cache. 6961573c4e1eSChuck Lever */ 6962573c4e1eSChuck Lever int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry, 6963573c4e1eSChuck Lever int plus) 69641da177e4SLinus Torvalds { 6965dae100c2SFred Isaman uint32_t bitmap[3] = {0}; 69661da177e4SLinus Torvalds uint32_t len; 6967babddc72SBryan Schumaker __be32 *p = xdr_inline_decode(xdr, 4); 6968babddc72SBryan Schumaker if (unlikely(!p)) 6969babddc72SBryan Schumaker goto out_overflow; 6970c08e76d0SChuck Lever if (*p == xdr_zero) { 6971babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 4); 6972babddc72SBryan Schumaker if (unlikely(!p)) 6973babddc72SBryan Schumaker goto out_overflow; 6974c08e76d0SChuck Lever if (*p == xdr_zero) 6975573c4e1eSChuck Lever return -EAGAIN; 69761da177e4SLinus Torvalds entry->eof = 1; 6977573c4e1eSChuck Lever return -EBADCOOKIE; 69781da177e4SLinus Torvalds } 69791da177e4SLinus Torvalds 6980babddc72SBryan Schumaker p = xdr_inline_decode(xdr, 12); 6981babddc72SBryan Schumaker if (unlikely(!p)) 6982babddc72SBryan Schumaker goto out_overflow; 69831da177e4SLinus Torvalds entry->prev_cookie = entry->cookie; 69841da177e4SLinus Torvalds p = xdr_decode_hyper(p, &entry->cookie); 6985c08e76d0SChuck Lever entry->len = be32_to_cpup(p); 6986babddc72SBryan Schumaker 69879af8c222STrond Myklebust p = xdr_inline_decode(xdr, entry->len); 6988babddc72SBryan Schumaker if (unlikely(!p)) 6989babddc72SBryan Schumaker goto out_overflow; 69901da177e4SLinus Torvalds entry->name = (const char *) p; 69911da177e4SLinus Torvalds 69921da177e4SLinus Torvalds /* 69931da177e4SLinus Torvalds * In case the server doesn't return an inode number, 69941da177e4SLinus Torvalds * we fake one here. (We don't use inode number 0, 69951da177e4SLinus Torvalds * since glibc seems to choke on it...) 69961da177e4SLinus Torvalds */ 69971da177e4SLinus Torvalds entry->ino = 1; 69984f082222STrond Myklebust entry->fattr->valid = 0; 69991da177e4SLinus Torvalds 70009af8c222STrond Myklebust if (decode_attr_bitmap(xdr, bitmap) < 0) 7001babddc72SBryan Schumaker goto out_overflow; 70029af8c222STrond Myklebust 70039af8c222STrond Myklebust if (decode_attr_length(xdr, &len, &p) < 0) 7004babddc72SBryan Schumaker goto out_overflow; 70059af8c222STrond Myklebust 7006573c4e1eSChuck Lever if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh, 70078b7e3f49STrond Myklebust NULL, entry->server) < 0) 7008babddc72SBryan Schumaker goto out_overflow; 700928331a46STrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) 701028331a46STrond Myklebust entry->ino = entry->fattr->mounted_on_fileid; 701128331a46STrond Myklebust else if (entry->fattr->valid & NFS_ATTR_FATTR_FILEID) 701282f2e547SBryan Schumaker entry->ino = entry->fattr->fileid; 70139af8c222STrond Myklebust 70140b26a0bfSTrond Myklebust entry->d_type = DT_UNKNOWN; 70150b26a0bfSTrond Myklebust if (entry->fattr->valid & NFS_ATTR_FATTR_TYPE) 70160b26a0bfSTrond Myklebust entry->d_type = nfs_umode_to_dtype(entry->fattr->mode); 70170b26a0bfSTrond Myklebust 7018573c4e1eSChuck Lever return 0; 7019babddc72SBryan Schumaker 7020babddc72SBryan Schumaker out_overflow: 7021babddc72SBryan Schumaker print_overflow_msg(__func__, xdr); 7022573c4e1eSChuck Lever return -EAGAIN; 70231da177e4SLinus Torvalds } 70241da177e4SLinus Torvalds 70251da177e4SLinus Torvalds /* 70261da177e4SLinus Torvalds * We need to translate between nfs status return values and 70271da177e4SLinus Torvalds * the local errno values which may not be the same. 70281da177e4SLinus Torvalds */ 70291da177e4SLinus Torvalds static struct { 70301da177e4SLinus Torvalds int stat; 70311da177e4SLinus Torvalds int errno; 70321da177e4SLinus Torvalds } nfs_errtbl[] = { 70331da177e4SLinus Torvalds { NFS4_OK, 0 }, 7034856dff3dSBenny Halevy { NFS4ERR_PERM, -EPERM }, 7035856dff3dSBenny Halevy { NFS4ERR_NOENT, -ENOENT }, 7036856dff3dSBenny Halevy { NFS4ERR_IO, -errno_NFSERR_IO}, 7037856dff3dSBenny Halevy { NFS4ERR_NXIO, -ENXIO }, 7038856dff3dSBenny Halevy { NFS4ERR_ACCESS, -EACCES }, 7039856dff3dSBenny Halevy { NFS4ERR_EXIST, -EEXIST }, 7040856dff3dSBenny Halevy { NFS4ERR_XDEV, -EXDEV }, 7041856dff3dSBenny Halevy { NFS4ERR_NOTDIR, -ENOTDIR }, 7042856dff3dSBenny Halevy { NFS4ERR_ISDIR, -EISDIR }, 7043856dff3dSBenny Halevy { NFS4ERR_INVAL, -EINVAL }, 7044856dff3dSBenny Halevy { NFS4ERR_FBIG, -EFBIG }, 7045856dff3dSBenny Halevy { NFS4ERR_NOSPC, -ENOSPC }, 7046856dff3dSBenny Halevy { NFS4ERR_ROFS, -EROFS }, 7047856dff3dSBenny Halevy { NFS4ERR_MLINK, -EMLINK }, 7048856dff3dSBenny Halevy { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, 7049856dff3dSBenny Halevy { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, 7050856dff3dSBenny Halevy { NFS4ERR_DQUOT, -EDQUOT }, 7051856dff3dSBenny Halevy { NFS4ERR_STALE, -ESTALE }, 7052856dff3dSBenny Halevy { NFS4ERR_BADHANDLE, -EBADHANDLE }, 7053856dff3dSBenny Halevy { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, 7054856dff3dSBenny Halevy { NFS4ERR_NOTSUPP, -ENOTSUPP }, 7055856dff3dSBenny Halevy { NFS4ERR_TOOSMALL, -ETOOSMALL }, 7056fdcb4577STrond Myklebust { NFS4ERR_SERVERFAULT, -EREMOTEIO }, 7057856dff3dSBenny Halevy { NFS4ERR_BADTYPE, -EBADTYPE }, 7058856dff3dSBenny Halevy { NFS4ERR_LOCKED, -EAGAIN }, 7059856dff3dSBenny Halevy { NFS4ERR_SYMLINK, -ELOOP }, 7060856dff3dSBenny Halevy { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, 7061856dff3dSBenny Halevy { NFS4ERR_DEADLOCK, -EDEADLK }, 7062856dff3dSBenny Halevy { -1, -EIO } 70631da177e4SLinus Torvalds }; 70641da177e4SLinus Torvalds 70651da177e4SLinus Torvalds /* 70661da177e4SLinus Torvalds * Convert an NFS error code to a local one. 70671da177e4SLinus Torvalds * This one is used jointly by NFSv2 and NFSv3. 70681da177e4SLinus Torvalds */ 70691da177e4SLinus Torvalds static int 70700a8ea437SDavid Howells nfs4_stat_to_errno(int stat) 70711da177e4SLinus Torvalds { 70721da177e4SLinus Torvalds int i; 70731da177e4SLinus Torvalds for (i = 0; nfs_errtbl[i].stat != -1; i++) { 70741da177e4SLinus Torvalds if (nfs_errtbl[i].stat == stat) 70751da177e4SLinus Torvalds return nfs_errtbl[i].errno; 70761da177e4SLinus Torvalds } 70771da177e4SLinus Torvalds if (stat <= 10000 || stat > 10100) { 70781da177e4SLinus Torvalds /* The server is looney tunes. */ 7079fdcb4577STrond Myklebust return -EREMOTEIO; 70801da177e4SLinus Torvalds } 70811da177e4SLinus Torvalds /* If we cannot translate the error, the recovery routines should 70821da177e4SLinus Torvalds * handle it. 70831da177e4SLinus Torvalds * Note: remaining NFSv4 error codes have values > 10000, so should 70841da177e4SLinus Torvalds * not conflict with native Linux error codes. 70851da177e4SLinus Torvalds */ 7086856dff3dSBenny Halevy return -stat; 70871da177e4SLinus Torvalds } 70881da177e4SLinus Torvalds 70891da177e4SLinus Torvalds #define PROC(proc, argtype, restype) \ 70901da177e4SLinus Torvalds [NFSPROC4_CLNT_##proc] = { \ 70911da177e4SLinus Torvalds .p_proc = NFSPROC4_COMPOUND, \ 70929f06c719SChuck Lever .p_encode = (kxdreproc_t)nfs4_xdr_##argtype, \ 7093bf269551SChuck Lever .p_decode = (kxdrdproc_t)nfs4_xdr_##restype, \ 70942bea90d4SChuck Lever .p_arglen = NFS4_##argtype##_sz, \ 70952bea90d4SChuck Lever .p_replen = NFS4_##restype##_sz, \ 7096cc0175c1SChuck Lever .p_statidx = NFSPROC4_CLNT_##proc, \ 7097cc0175c1SChuck Lever .p_name = #proc, \ 70981da177e4SLinus Torvalds } 70991da177e4SLinus Torvalds 71001da177e4SLinus Torvalds struct rpc_procinfo nfs4_procedures[] = { 71011da177e4SLinus Torvalds PROC(READ, enc_read, dec_read), 71021da177e4SLinus Torvalds PROC(WRITE, enc_write, dec_write), 71031da177e4SLinus Torvalds PROC(COMMIT, enc_commit, dec_commit), 71041da177e4SLinus Torvalds PROC(OPEN, enc_open, dec_open), 71051da177e4SLinus Torvalds PROC(OPEN_CONFIRM, enc_open_confirm, dec_open_confirm), 71061da177e4SLinus Torvalds PROC(OPEN_NOATTR, enc_open_noattr, dec_open_noattr), 71071da177e4SLinus Torvalds PROC(OPEN_DOWNGRADE, enc_open_downgrade, dec_open_downgrade), 71081da177e4SLinus Torvalds PROC(CLOSE, enc_close, dec_close), 71091da177e4SLinus Torvalds PROC(SETATTR, enc_setattr, dec_setattr), 71101da177e4SLinus Torvalds PROC(FSINFO, enc_fsinfo, dec_fsinfo), 71111da177e4SLinus Torvalds PROC(RENEW, enc_renew, dec_renew), 71121da177e4SLinus Torvalds PROC(SETCLIENTID, enc_setclientid, dec_setclientid), 71131da177e4SLinus Torvalds PROC(SETCLIENTID_CONFIRM, enc_setclientid_confirm, dec_setclientid_confirm), 71141da177e4SLinus Torvalds PROC(LOCK, enc_lock, dec_lock), 71151da177e4SLinus Torvalds PROC(LOCKT, enc_lockt, dec_lockt), 71161da177e4SLinus Torvalds PROC(LOCKU, enc_locku, dec_locku), 71171da177e4SLinus Torvalds PROC(ACCESS, enc_access, dec_access), 71181da177e4SLinus Torvalds PROC(GETATTR, enc_getattr, dec_getattr), 71191da177e4SLinus Torvalds PROC(LOOKUP, enc_lookup, dec_lookup), 71201da177e4SLinus Torvalds PROC(LOOKUP_ROOT, enc_lookup_root, dec_lookup_root), 71211da177e4SLinus Torvalds PROC(REMOVE, enc_remove, dec_remove), 71221da177e4SLinus Torvalds PROC(RENAME, enc_rename, dec_rename), 71231da177e4SLinus Torvalds PROC(LINK, enc_link, dec_link), 71241da177e4SLinus Torvalds PROC(SYMLINK, enc_symlink, dec_symlink), 71251da177e4SLinus Torvalds PROC(CREATE, enc_create, dec_create), 71261da177e4SLinus Torvalds PROC(PATHCONF, enc_pathconf, dec_pathconf), 71271da177e4SLinus Torvalds PROC(STATFS, enc_statfs, dec_statfs), 71281da177e4SLinus Torvalds PROC(READLINK, enc_readlink, dec_readlink), 71291da177e4SLinus Torvalds PROC(READDIR, enc_readdir, dec_readdir), 71301da177e4SLinus Torvalds PROC(SERVER_CAPS, enc_server_caps, dec_server_caps), 71311da177e4SLinus Torvalds PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn), 7132029d105eSJ. Bruce Fields PROC(GETACL, enc_getacl, dec_getacl), 713323ec6965SJ. Bruce Fields PROC(SETACL, enc_setacl, dec_setacl), 7134683b57b4STrond Myklebust PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations), 7135d3c7b7ccSTrond Myklebust PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner), 71365a5ea0d4SBryan Schumaker PROC(SECINFO, enc_secinfo, dec_secinfo), 713799fe60d0SBenny Halevy #if defined(CONFIG_NFS_V4_1) 713899fe60d0SBenny Halevy PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id), 7139fc931582SAndy Adamson PROC(CREATE_SESSION, enc_create_session, dec_create_session), 71400f3e66c6SAndy Adamson PROC(DESTROY_SESSION, enc_destroy_session, dec_destroy_session), 7141fc01cea9SAndy Adamson PROC(SEQUENCE, enc_sequence, dec_sequence), 71422050f0ccSAndy Adamson PROC(GET_LEASE_TIME, enc_get_lease_time, dec_get_lease_time), 714318019753SRicardo Labiaga PROC(RECLAIM_COMPLETE, enc_reclaim_complete, dec_reclaim_complete), 7144b1f69b75SAndy Adamson PROC(GETDEVICEINFO, enc_getdeviceinfo, dec_getdeviceinfo), 7145b1f69b75SAndy Adamson PROC(LAYOUTGET, enc_layoutget, dec_layoutget), 7146863a3c6cSAndy Adamson PROC(LAYOUTCOMMIT, enc_layoutcommit, dec_layoutcommit), 7147cbe82603SBenny Halevy PROC(LAYOUTRETURN, enc_layoutreturn, dec_layoutreturn), 7148fca78d6dSBryan Schumaker PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), 71497d974794SBryan Schumaker PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), 71509aeda35fSBryan Schumaker PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), 71517f11d8d3SAndy Adamson PROC(GETDEVICELIST, enc_getdevicelist, dec_getdevicelist), 715299fe60d0SBenny Halevy #endif /* CONFIG_NFS_V4_1 */ 71531da177e4SLinus Torvalds }; 71541da177e4SLinus Torvalds 7155a613fa16STrond Myklebust const struct rpc_version nfs_version4 = { 71561da177e4SLinus Torvalds .number = 4, 7157e8c96f8cSTobias Klauser .nrprocs = ARRAY_SIZE(nfs4_procedures), 71581da177e4SLinus Torvalds .procs = nfs4_procedures 71591da177e4SLinus Torvalds }; 71601da177e4SLinus Torvalds 71611da177e4SLinus Torvalds /* 71621da177e4SLinus Torvalds * Local variables: 71631da177e4SLinus Torvalds * c-basic-offset: 8 71641da177e4SLinus Torvalds * End: 71651da177e4SLinus Torvalds */ 7166